NC0025453_Report_20200817

F Dewberry
p-'P % 5yS3
R"FIVED
AUG 2 6 2020
NCD'f auv4rillPDES
Neuse River QUAL2K Model
Report: Falls Dam to
Goldsboro
For Little Creek WRF Expansion
August 17, 2020 (Final Report)
SUBMITTED BY:
Dewberry
2610 Wycliff Road
Suite 410
Raleigh, NC 27607
SUBMITTED TO:
INC DEQ
Division of Water Resources -
Modeling and TMDL Branch
1617 Mail Service Center
Raleigh, NC 27699

TABLE OF CONTENTS
4"
'14-11 Dewberry,
..'EIVED
AUG 2 6 2020
NCDEQ/DWR/NPDES
1. Introduction .....................................................................................................
3
2. Approach .........................................................................................................
3
3. Model Inputs ....................................................................................................
5
3.1 Model Geography ..............................................................................
6
3.2 Hydraulic Inputs ................................................................................
6
3.3 Water Quality Inputs ..........................................................................
8
3.4 Atmospheric Data ..............................................................................
9
3.5 Kinetic Rate Parameters ...................................................................
9
4. Calibration and Validation Models ..............................................................
10
4.1 Flow Calculations and Calibration .................................................10
4.2 Water Quality Calibration ................................................................
11
5. Low Flow Model Results ..............................................................................
13
6. Neuse River Discussion ...............................................................................
14
7. Conclusions ..................................................................................................
15
8. References .....................................................................................................
16
Neuse River QUAL21K Model Report FINAL j 1

List of Tables
Table 2.1. Neuse River QUAL2K Model Summary for Little Creek WRF Expansion .........................5
Table 2.2. Point Source NPDES Discharge Limits on Neuse River and Neuse River Tributaries
from Falls Dam to Goldsboro...........................................................................................18
Table 6.1. Neuse River DO Measurements from Falls Dam to Smithfield(2009-2018)...................15
List of Figures
Figure 3.1: Neuse River QUAL21K Model Map: Falls Dam to Goldsboro.........................................21
Figure 3.2: Neuse River QUAL2K Model Line Diagram: Falls Dam to Goldsboro ...........................22
Figure 5.1: Neuse River Low Flow Model Results - DO Profile for current and future LCWRF
Flow................................................................................................................................................25
Figure 5.2: Neuse River Flow Calibration Model Results (December 2012) - DO
Profile.............................................................................................................................................26
Figure 5.3: Neuse River Water Quality Calibration Model Results (September 2013) - DO
Profile.............................................................................................................................................27
List of Appendices
Appendix A: HEC-RAS Neuse River Cross Sections
Appendix B: Neuse River Flow Balance Calculations
Appendix C: USGS Sfreamstats Data
Appendix D: NPDES Permit— Discharge Monitoring Report Data
Appendix E: Neuse River Ambient Monitoring Station Data
Appendix F: USGS 7Q10 Flow Rate Verification
Appendix G: Flow Calibration — QUAL2K Result Graphs
Appendix H: Water Quality Calibration — QUAL21K Result Graphs
Appendix I: Low Flow Model — QUAL21K Result Graphs
Appendix J: Neuse River QUAL2K Locations Table
Appendix K: Sensitivity Analysis Summary Report
;> Dewberry Neuse River QUAL21K Model Report FINAL 12

1. INTRODUCTION
The Town of Clayton (Town) is proposing an upgrade and expansion of the existing 2.5 MGD Little Creek Water
Reclamation Facility (WRF). The Little Creek WRF discharges treated effluent to the Neuse River, East of Clayton,
upstream of the Highway NC-42 Bridge. The discharge is permitted under National Pollutant Discharge Elimination
System (NPDES) Permit Number NC0025453. The purpose of this model is to determine the impact of the proposed
Little Creek WRF expansion on Neuse River water quality, specifically the impactto dissolved oxygen (DO) in the river.
The water quality standard for DO in this section of the Neuse River is a minimum of 4.0 mg/L, instantaneous, and 5.0
mg/L, daily average concentration.) There are several sections of the Neuse River that have been and are currently
,..,, listed on the impaired waterways list. This updated model of the river was requested by North Carolina Department of
Environmental Quality (NC DEQ) to determine impact of the Little Creek WRF expansion on the specified section of
the Neuse River. The model approach, results, and conclusions are contained in the following sections.
2. APPROACH
An initial model scoping meeting was held at NC DEQ an March 27, 2019 to understand NC DEC's existing model and
to determine needs of the model for the future NPDES point source impact evaluation. A Model Plan was outlined as
.� a result of this meeting and a follow-up conversation with NC DEQ." QUAL21K was selected as the model platform in
accordance with NC DEQ's request for a complex Level C model of the Neuse River. The excel -based QUAL21K model
was developed by the U.S. EPA Center for Exposure Assessment Modeling (CEAM) in conjunction with Tufts
^� University. The QUAL21K model and its previous version, QUAL2E, are widely used for modeling dissolved oxygen
..� (DO) profiles in surface water.'
NC DEQ requested modeling Neuse River conditions where the dissolved oxygen is expected to be lowest: i.e. low
(7Q10) flow rate"' coupled with high water temperature. Notably, low flow and high temperature conditions do not
r► simultaneously occur naturally in the Neuse River at the WRF because the WRF is located downstream of Falls Dam.
Falls Dam regulates flow to the Neuse River at a higher flow rate during warm, summer months.'v Though the Neuse
River does not experience low flow, high temperatures simultaneously, the Neuse River was modeled under these
conditions to represent the most critical, if only theoretical, conditions in the river. INC DEQ requested this scenario as
.► a worst case, citing the potential for drought during summer months that could impact dam release requirements.
The Little Creek WRF expansion is planned to 6 MGD. The Town is still in the planning phase for future flow; 10 MGD
is the expected maximum. Both 6 MGD and 10 MGD were modeled as potential future flow rates. The Little Creek WRF
contributions of BOD, NH3-N, and phosphorus were modeled according the current summer daily maximum NPDES
' 15A NCAC 02B .0211 FRESH SURFACE WATER QUALITY STANDARDS FOR CLASS C WATERS (6) Dissolved oxygen: not
less than 6.0 mg/I for trout waters; for non -trout waters, not less than a daily average of 5.0 mgA with a minimum instantaneous
value of not less than 4.0 mgA; swamp waters, lake coves, or backwaters, and lake bottom waters may have lower values if caused
by natural conditions.
nn 6 At the time of writing the model plan, Grifols was pursuing a direct discharge permit for treated industrial wastewater to the Neuse
River. Grifols has decided to continue indirect discharge to a municipal plant under a pretreatment program. Though the model plan
no references evaluation of Grifols discharge, this model study considers only the Town of Clayton's expanded NPDES discharge.
W USGS definition of 7Q10: The 7-day, 10-year (7Q10) annual low -flow statistic is based on an annual series of the smallest values
of mean discharge computed over any 7-consecutive days during the annual period. A probability distribution is fit to the annual
series of 7-day minimums, and the 7Q10 statistic is the annual 7-day minimum flow with a 10-year recurrence interval (non-
exceedance probability of 10 percent).
'v U.S. Army Corps of Engineers, in agreement with the Town of Smithfield, is required to release a minimum of 100 cis (64.6 MGD)
from the dam during the summer months (April -October) and 65 cfs (42 MGD) during winter months (November -March).
iQi" Dewbeiiy P.ugusl 17 2020 I Neuse River QUAL2K Model Report FINAL 13
n.�

permit limits. The following models were developed to discern impact of the Little Creek WRF expansion under the
aforementioned most critical river conditions:
(1) A low flow, high temperature model using current Little Creek WRF discharge, 2.5 MGD, and daily maximum
NPDES permit limits for all dischargers.
(2) A low flow, high temperature model using future expanded Little Creek WRF discharge flow and daily
maximum NPDES permit limits for all dischargers. Two future flow scenarios were modeled:
a. Little Creek WRF at 6 MGD
b. Little Creek WRF at 10 MGD
Model scenarios (1) and (2) were developed assuming maximum flow and maximum daily permit limits for NPDES
dischargers to the Neuse River. A third future model of critical river conditions was developed to determine the impact
of point source discharges at monthly average permit limits. This scenario was run at the maximum future flow of Little
Creek WRF, 10 MGD:
(3) A low flow, high temperature model using future expanded Little Creek WRF discharge flow of 10 MGD and
monthly average NPDES permit limits for all dischargers.
The Model Plan proposed developing a calibration model to validate model predictions. According to the plan, the
calibration model would use available data on a historical day most similar to the desired model conditions to compare
model predictions of flow, dissolved oxygen, temperature, and nutrient levels to the field data. Because low flow
conditions do not coincide with high temperature conditions in the River located downstream of Falls Dam, two
calibration models were developed as follows:
(4) A model that reflects Neuse River Flow near the 7Q10 flow rate, which was used to calibrate hydraulic inputs
and assess flow predictions (December 11, 2012), and
(5) A model that reflects higher temperature conditions in the Neuse River to calibrate water quality inputs and
assess water quality predictions (September 30, 2013).
The December and September dates for the two calibration models were selected as they contained the most recent
complete set of ambient monitoring station (AMS) data on days when flow and temperature were closest to desired
model conditions. Historical ambient monitoring station data was collected from both the Lower Neuse Basin
Association (LNBA), and EPA's Water Quality Portal for the calibration timeframes.
Table 2.1 shows the six main model scenarios that were run to determine impact of Little Creek WRF and to calibrate
model inputs. Other models were run as sensitivity analyses to input parameters, as presented in Appendix K.
r
�:; Dewberry, f:uyusi i 7 2020 1 Neuse River QUAL2K Model Report FINAL 14 �..

Grp.
Table 2.1. Neuse River QUAL2K Model Summary for Little Creek WRF Exoansion
DescriptionNo. I Model
1
Low Flow:
7Q10 Low Flow at Headwaters (1.39 m'/s, 32
Current NPDES permitted flow, 2.5 MGD
Current WRF Flow
MGD)
7010 or Low Flow for tributaries
Current NPDES daily max permit limits t"°'•'I
High summer water temperature (29°C),
Point Source discharge at daily max NPDES
limits
2(a)
Low Flow
7Q10 Low Flow at Headwaters (1.39 m3/s, 32
Projected future flow,
2(b)
Future WRF Flow.
MGD)
(a) 6 MGD,
6 MGD and
7Q10 or Low Flow for tributaries
(b) 10 MGD
10 MGD
High summer water temperature, (29°C)
Point Source discharge at daily max NPDES
Current NPDES daily max permit limits
limits
3
Low Flow:
7Q10 Low Flaw at Headwaters (1.39 m3/s, 32
Projected future flow, 10 MGD
Future WRF Flow
MGD)
10 MGD
7010 or Low Flow for tributaries
Current NPDES monthly average permit limits
High summer water temperature, (29°C)
Point Source discharge at monthly average
NPDES limits
4
Flow Calibration
Flow. Falls Dam USGS Gage station data (1.93
Discharge Monitoring Report data for the
Model
m3/s, 44 MGD)
calibration day: December 1 i", 2012 or
(December 2012)
Temperature: Falls Dam ambient monitoring
nearest calibration day
station data (14'C)
Water Quality
Flow: Falls Dam USGS Gage station data (3.37
Discharge Monitoring Report data for October
L
Calibration Model
m3/s, 77 MGD)
4", 2013 or nearest available to calibration day
(September 2013)
Temperature: Falls Dam ambient monitoring
g
station data (23.8°C)
ONWA Two previous Neuse River models were used for reference in this modeling work: (1) A QUAL2E model of the Neuse
River developed by INC DEQ in 1992 to support development of a Neuse nutrient management program', and (2) A
,., QUAL2K model of the Neuse River by Hazen and Sawyer in 2016 to predict flows for a water supply study. The following
section details source of inputs from the previous models as well as from more recent data on the Neuse River.
3. MODEL INPUTS
As a general note, all model inputs may be found in the excel -based QUAL2K model workbook files. Selected model
inputs were studied to determine impact on model results; Appendix K contains a summary of the sensitivity analyses.
3.1 Model Geography
The geographic boundaries of the QUAL2K model were initially chosen to match the 1992 Qua12E modeled section
from Falls Dam to Smithfield, which covers approximately 75 kilometers (km) of river. The Town of Clayton's NPDES
^� discharge is 52 km downstream of the Falls Dam headwater. After reviewing the initial model, NC DEQ requested
Ask modeling downstream of Smithfield to determine DO profile and recovery. Accordingly, the model files were revised in
"rev D" to include an additional 92 km downstream of Smithfield, which brings the model to a USGS gage station in
Goldsboro. The additional 92 km between Smithfield and Goldsboro includes twelve additional hydraulic reaches, four
additional NPDES point source discharges to the Neuse, and eleven additional tributaries.
i' Dewberry- la4Wsl 17 202C Neuse River QUAL2K Model Report FINAL 15

Figure 3.1 is a map of modeled area from Falls Dam to Goldsboro; it shows locations of tributary confluences with the
Neuse as well as point source dischargers to the Neuse. The map shows the location of ambient monitoring stations
where water quality data are collected and the location of United States Geological Survey (USGS) gage stations where
Neuse River flow and depth data are collected. A linear representation of the model reaches and relative location of
NPDES dischargers, tributaries, USGS gage station and AMS stations is presented in Figure 3.2 and a table of
locations is presented in Appendix J.
12 Hydraulic Inputs
QUAL2K models a river by dividing the river into a series of reaches. Each reach corresponds to a specific section of
river, defined by unique hydraulic characteristics (channel and side slope, bottom width, and channel roughness). Each
reach is modeled as a series of steady-state flow elements, accounting for user -defined point source and non -point
source (a.k.a. diffuse source) inflow and outflow (a.k.a. abstraction). Water quality constituents are modeled in each
element based on steady-state flow and user -defined dispersion, kinefics, and sources or sinks of each parameter
within the element.3
Both the 1992 QUAL2E model and the 2016 QUAL2K model used a series of 19 individual reaches to represent the
Neuse River between Falls Dam and Smithfield. The geographical location and length of these first 19 reaches was
also used in this modeling effort. An additional 12 reaches were added to model Smithfield to Goldsboro, for a total of
31 reaches. The locations of these reaches was approximated from the 1992 QUAL2E report as well as by looking at
cross -sectional data for the river. where cross sections appeared to change in geometry a model reach was delineated.
For each reach, Neuse River hydraulic conditions (stream depth and velocity) were predicted in the model by Manning's
Equation. The stream geometry parameters (channel slope, manning's roughness coefficient, bottom width, side
slopes) were determined from cross sections in each of the 31 reaches as published in the Hydraulic Engineering
Center's Second Edition (HEC 2.0) for Wake County and FEMA-published Hydraulic Engineering Center's River
Analysis System (HEC-RAS) (Johnston County) data. Cross sections can be found in Appendix A.
The Manning's Equation was used to predict depth and velocity in the Neuse River for all reaches, with the exception
of Reach 6 in the calibration models. The Milburnie dam, located near the end of Reach 6 in the QUAL2K model
boundaries, was removed in late 2017. The dam was located 6 miles east of Raleigh and over 20 km upstream the
Neuse River from the Little Creek WRF discharge. In the calibration models, the weir equations for the Milburnie dam
were used to predict Neuse River hydraulics; in the low flow models, which represent conditions after dam removal,
the nearest downstream HEC-RAS cross section was used for manning equation inputs to predict channel geometry.
Flow inputs to the QUAL2K models in this study were determined as follows:
3.2.1 Neuse River Headwater Flow: Falls Dam
Since 1984, the U.S. Army Corps of Engineers has been required to release a minimum of 100 cis (64.6 MGD) from
Falls Dam in the summer (April -October) and 65 cis (42 MGD) in the winter (November -March). The dam release
targets are based on meeting minimum flow to Smithfield (measured by USGS gage station 02087570): 184 cfs in the
winter and 254 cis in the summer. The USGS-published 7010 flow° at the Clayton gage station aligns with the target
• USGS definition of 7Q10: The 7-day, 10-year (7Q10) annual low -flow statistic is based on an annual series of the smallest values
of mean discharge computed over any 7-consecutive days during the annual period. A probability distribution is fit to the annual
series of 7-day minimums, and the 7Q10 statistic is the annual 7-day minimum flow with a 10-year recurrence interval (non-
exceedance probability of 10 percent).
£` Dewberry_
.:ugsi �- �02G ,Neuse River QUAL2K Model Report FINAL 6

minimum flow (7Q10 is 181 cis). However, the USGS-published 7Q10 for the Falls Dam gage station, USGS 02087183,
.� is lower than the minimum release criteria: the USGS-published 70110 is 49 cis compared to minimum release criteria
of 65 cis. For the low flow models, the most critical condition in the River is modeled by the 7Q10 (49 cfs) and just
... enough runoff to meet the downstream 7Q10 flow at Clayton (181 cfs), at Smithfield (184 cfs), and at Goldsboro (271
cis). This estimation of critical low flow condition in this section of Neuse River is aligned with the approach used in the
^ 1992 QUAL2E model report. For the calibration models, USGS gage station data was used for headwater flow. Flow
balance calculations for the model scenarios may be found in Appendix B.
^
3.2.2 Tributary Flow
^ Thirteen tributaries were modeled between Falls Dam and Smithfield, and twelve tributaries were modeled between
Smithfield and Goldsboro. All 25 tributaries between Falls Dam and Goldsboro were modeled as point source
contributions. This approach of accounting for tributaries as point sources is consistent to the approach in the 1992
QUAL2E model. The drainage area for each tributary was determined from USGS Streamstats and North Carolina
Flood Risk Information System (FRIS) at the confluence with the Neuse River.4 If a tributary was >5% of the total
^ drainage area, the tributary was deemed significant and included in the model. A number of tributaries less than 5% of
^ the drainage area were included in the 1992 QUAL2E model; these smaller tributaries were also included in this
QUAL2K model to reflect similar level of detail as the 1992 model. The flow calculations in Appendix B contain a list
of the tributaries and their drainage areas.
Flow rates of each tributary were calculated by ratio of tributary drainage area to total drainage area of the Neuse River
between USGS gage stations; the drainage area ratio was multiplied by total flow accumulation between USGS gage
... stations. Tributaries that have point source discharge flow contributions were added to their flow. The Flow Calculation
'"► and calibration method is discussed in detail in the Flow Calibration section of this report. USGS published a study of
,^ tributary flows and drainage areas along the Neuse River in 1998.1 The USGS study was conducted over 20 years ago
and does not contain low flow for all tributaries at or near the confluence of the Neuse River, so it was not used as a
primary sources of flow information. The USGS study was used to check if tributary flows calculated in this study were
within reasonable range.
3.2.3 Diffuse Source Flow
Diffuse sources were included in the model to represent runoff and numerous small scale flow sources (less than 4.6
^� square miles of drainage area) in each of the 31 reaches between Falls Dam and Goldsboro. Diffuse source flow
,,. contributions were estimated by drainage area ratio of the selected reach to total drainage area applied to Neuse River
flow accumulation between gage stations, as shown in Appendix B. Drainage areas for each reach may be found in
Appendix C, USGS Streamstats data.
Aft
A., 3.2.4 NPDES Point Source Flow
^
Point source contributions to the Neuse River were determined from NC DEQ's map of NPDES dischargers. There are
eleven direct dischargers to the Neuse River between Falls Dam and Smithfield. There are four direct dischargers to
^ the Neuse River between Smithfield and Goldsboro. Notably, just under half of the 15 direct dischargers between Falls
Dam and Goldsboro have permitted flows above 2 MGD (Smith Creek W WiP, Nauss River W WiP, Little Creek WRF,
Johnston County WiP, Central Johnston County W WiF, H.F. Lee Energy Complex, and Goldsboro WRF). Two water
treatment plants between Falls Dam and Goldsboro account for flow withdrawal from the Neuse River (Johnston County
WTP and Smithfield WiP). In addition to direct dischargers to the Neuse River, there are eleven NPDES dischargers
^ ¢
^ �YM
Dewberry, August i7 2020 I Neuse River QUAL2K Model Report FINAL 17

to tributaries of the Neuse River between Falls Dam and Goldsboro, as well as one water treatment plant withdrawal
(Fork Township WTP on Beaverdam Creek).
For the low flow model scenarios, flow contribution from each direct discharge source is based on maximum NPDES
permitted flow rate; it is assumed these sources at maximum flow would have greater impact on DO suppression in the
river. Flow withdrawals from water treatment plants were also assumed to be maximum allowed. In the calibration
models, flows from discharge monitoring reports (DMR) were used as input to the model. Table 2.2 contains point
source discharge NPDES permit limits, which were used in the low flow models. Appendix D contains DMR data from
NPDES point sources, which were used for the calibration models.
3.3 Water Quality Inputs
Water quality constituent inputs to the QUAL2K model include the following parameters: temperature, conductivity,
solids, dissolved oxygen, BOD, organic nitrogen, ammonia, nitrate, organic phosphorus, inorganic phosphorus,
pathogens, alkalinity, pH, phytoplankton and detritus. For complete water quality inputs for the headwaters, point
sources, tributaries, and diffuse flow contributions, see the QUAL2K model files. Major water quality inputs to the
QUAL2K models in this study were determined as follows:
3.3.1 Neuse River Headwater Water Quality: Falls Dam
Headwater water quality inputs were determined from available ambient monitoring station data for the calibration
models." For the low flow models, headwater quality inputs were determined from a review of the ambient monitoring
station data at Falls Dam since 2009, using the 951h percentile data for nutrient and organic loadings and 5' percentile
DO condition at the headwater: these values were selected to represent most critical water quality condition at the
Headwater for the "low flow" model scenarios.
3.3.2 Tributary Water Quality
Water quality inputs for tributaries were approximated by several methods. For the calibration models, where available,
AMS data on the tributary was used: seven tributaries had AMS data used for the water quality calibration model (Smith
Creek, Walnut Creek, Poplar Creek, Marks Creek, Mill Creek, Falling Creek and Little River). For other tributaries, the
nearest, downstream AMS data in the Neuse River was used for water quality inputs; assuming the downstream AMS
data reflects the contribution of the tributary. Several tributaries with significant point source dischargers (Tom's Creek,
Poplar Creek, and Beddingfield Creek) used their NPDES discharge data coupled with assumed background
concentrations from AMS data to estimate water quality parameters. Smith Creek and Harris Creek also have NPDES
dischargers, but they are a very small portion of the flow, so AMS data was used as representative of their organic and
nutrient loading contributions. For eight tributaries, a background in -stream DO of 6.0 mg/L was assumed where the
AMS data was too far afield from the confluence with the Neuse River to be representative; most notably this was done
for Crabtree Creek and Swift Creek which are larger tributaries to the Neuse. Tributary water quality inputs may be
found in the model files.
"' Temperature, dissolved oxygen, organic nitrogen, ammonia -nitrogen, organic phosphorus, and pH were compiled from J1890000
data taken on 1011/2013. The flow for the main stem headwater was measured on September 30th, 2013 at J1890000. Pathogen
concentration for the main stem was lacking from A 890000 on 9/30/2013, so an average of the pathogen concentration from
downstream ambient monitoring stations on September 30th, 2013 was used. Due to a lack of alkalinity data available at J1890000
the minimum alkalinity concentration (50 mg/L) for nitrification was used. An average of Carbonaceous Biochemical Oxygen
Demand (cBOD) data from ambient monitoring stations along the Neuse River was used as a representation of the fast cBOD of the
main stem. For the Nitrate -Nitrogen data, data from a fall day with weather most similar to Sept 30th, 2013 was chosen.
Ilill Dewberry
Auausl 17 2020 1 Neuse River QUAL21K Model Report FINAL 18 ,r

.•,
3.3.3 Diffuse Source Water Quality
Diffuse source water quality inputs for cBOD, Organic Nitrogen and Ammonia were initially assumed the same as non -
AM% point source, runoff concentrations as used in the 1992 QUAL2E model study. A background concentration of 5 mg/L
Imok dissolved oxygen was used for diffuse sources, which is conservative compared to the 1992 study which used 7 mg/L
for diffuse sources. Alkalinity for diffuse sources was set to 50 mg CaCO3/L, so alkalinity limitation did not impact
nitrification rates.
P1%
3.3.4 NPDES Point Source Water Quality
"'k In the calibration models, water quality inputs were determined for NPDES point sources from Discharge Monitoring
^ Report (DMR) data collected closest to the calibration date (Appendix D). As water quality data is not collected every
day, DMR data from a day closest to the calibration date was used as input into the model. Specific dates of collected
DMR data for each water quality parameter for each point source are noted in the QUAL2K models (point sources tab,
^ cell comments).
In the low flow models, NPDES point source water quality inputs were equal to the facility's current maximum daily or
Auk
monthly average permit limits (depending upon the model scenario). In the case that no numerical limits existed,
^ September DMR data from the calibration model or background river concentrations were used, as noted in the point
..� source tab in the model files. While the NPDES facilities' may often discharge nutrients and organic loading below
permitted limits, this modeling approach in the low flow model accounts for the highest load potential from each facility
to the River in the low flow model condition. The water quality inputs from the point sources are shown in the QUAL2K
^ model files.
aft
3.4 Atmospheric Data
For the calibration models, AMS data was used to determine air temperature, cloud cover, and wind speed. The model
^ was run under steady hourly water quality and ambient weather conditions and does not account for diurnal cycles.
..�, Dew point was calculated at ambient temperature and 80% relative humidity. The shade assumption in the model was
determined by comparing model temperature predictions to AMS data (for details on the shade calibration see the
calibration model section).
�•► In the low flow models wind speed and cloud cover were conservatively assumed to be zero and shade percentage
was estimated to achieve in -stream water temperatures equal to 95" percentile at ambient monitoring stations. Air
temperature in the low flow model was assumed to be 95" percentile of AMS data (29°C). The air temperature on any
^' one day may be higher, but modeling maximum air temperature in the 90-100°F range resulted in in -stream water
..� temperature predictions much higher than have been observed in AMS data. This is likely because local maximum
^ values in ambient air temperature are not generally sustained long enough to raise Neuse River water temperature as
high as the model predicts. As the model is meant to represent most critical conditions in the Neuse River that are
^ representative of the Neuse River, the 95^ percentile of ambient air data at the headwater AMS data was used.
^
^
3.5 Kinetic Rate Parameters
QUAL21K estimates dissolved oxygen profile and nutrient loadings along a waterway from a variety of inputs, including:
• Oxygen reaeration rate,
BOD oxygenation rate,
• Organic nitrogen and phosphorus hydrolysis rates,
^
Dewberry,Auyusl 17 2020 Neuse River QUAL2K Model Report FINAL 19

• Organic nitrogen and phosphorus settling velocities,
• Ammonia nitrification rate and nitrate denitrification rate,
• Sediment oxygen demand,
• Sediment ammonia and phosphorus flux rates, and
• Growth and respiration of algae.
QUAL2K contains default values for these rates; which may be changed to waterway -specific values where data is
available. The rates may be applied to the entire model or made specific to each geographical reach. For this study,
the kinetic rates were determined by combination of available field data, QUAL2K model defaults, as well as published
US EPA6 ranges. The purpose of the September 2013 model was to verify rate assumptions based on data in the river
during the selected timeframe, when the temperature in the river is high. Calibration of the kinetic parameters is
discussed in the water quality calibration section of this study report. A summary of kinetic rate parameters for each of
the 31 reaches may be found in the QUAL2K model files. The rates for all models in this study were used consistently
across all models; varying from model -to -model based on an Arrhenius temperature correction.
4. CALIBRATION AND VALIDATION MODELS
4.1 Flow Calculation and Calibration
December 11, 2012 was selected as the flow calibration day because this ambient monitoring station data along the
river is available on this date and the Neuse River was at low flow, near the 7Q10 of the Neuse River (7Q10 is 1.39
m'/s, and flow on December 11, 2012 was 1.93 m'/s). Once the method for estimating relative point and non -point
source flow contributions was determined in this model, the flow contribution calculations methods were then applied
to subsequent models.
There are four USGS gage stations measuring flow and river depth within the model geography from Falls Dam to
Goldsboro:
1) USGS 02087183 measures flow released from Falls Lake Dam (at the model headwater);
2) USGS 02087500 measures Neuse River flow at NC-42 in Clayton (within 0.1 km downstream of the Little Creek
WRF discharge);
3) USGS 02087570 measures Neuse River flow at the Market Street Bridge in Smithfield;
4) USGS 02089000 measures Neuse River flow at Arrington Bridge in Goldsboro (at the model endpoint).
Flow from point and non -point sources was determined in the three sections of the River between USGS gage stations:
Falls Lake Dam to NC 42 in Clayton, NC 42 in Clayton to Smithfield, and Smithfield to Goldsboro. The difference in the
flow measurements at the beginning and end of each section is flow gained from point sources, tributaries, and diffuse
sources. Point source flow to the Neuse River was determined by DMR data. In order to determine flow contributions
from tributaries and non -point sources, the point sources flow was subtracted from the net gaged flow. Tributary flow
was estimated using a ratio of drainage area for the tributary to the total drainage area from Falls Dam to NC-42. The
remaining flow was parceled out to diffuse flow sources, using ratio of drainage area for each reach to the total drainage
area of the selected section of River. The same flow balance calculation was performed from NC-42 (USGS 02087183)
to Smithfield (USGS 02087570) and from Smithfield (USGS 02087570) to Goldsboro (USGS 02089000).
HEC-RAS calculated channel slope inputs at the USGS gage station locations were also calibrated in the December
2012 model to ensure QUAL2K model predictions of river depth correlated to the USGS-measured gage depth.
Calibrated HEC-RAS inputs were applied to the low flow and water quality calibration QUAL2K models.
•
Dewberry i..uy.isl T w20 I Neuse River QUAL2K Model Report FINAL 110

The flow calibration model shows that, after accounting for diffuse flows in each reach, the QUAL2K model of the Neuse
^ River from Falls Dam to Goldsboro can predict flow accumulation and relative river depths at the four USGS gage
^ stations from Falls Dam to Goldsboro with reasonable accuracy. Graphs of the flow prediction and depth predictions
^ compared to USGS data may be found in Appendix G as well as in the QUAL2K model file. The December 2012
calibration model was not intended to calibrate QUAL2K DO prediction; however, a comparison of the ambient
^ monitoring station data compared to the QUAL2K DO profile for the December 2012 model is shown in Figure 5.2 for
�► general interest in the model -prediction capability, even at the lower temperatures of the December model scenario.
^ 4.2 Water Quality Calibration
.uk A model was developed to calibrate water quality inputs and kinetic parameters in the model to September 30, 2013
^ ambient monitoring station (AMS) data. This date was selected because it has the most complete set of AMS water
quality data along the modeled stretch of Neuse River coupled with in -stream water temperature nearest to the desired
^ low flow model conditions. Thus it follows that if the QUAL2K model on September 30, 2013 can accurately predict DO
,^ as measured by AMS data, then the low flow model for Little Creek WRF is also expected to predict DO with reasonable
accuracy.
.^
Kinetic rates from the 1992 Qual2E model were used as an initial basis for calibration model. Outputs from the initial
^ run were compared to ambient monitoring station data along the Neuse River. Kinetic rate parameters as well as
ambient condition assumptions were calibrated to achieve model -predictions near ambient monitoring station data for
,.A the following parameters, in the following order. Temperature, Organic Phosphorus, Organic Nitrogen, Inorganic
Nitrogen (nitrate/nitrite) and Ammonia, and Dissolved Oxygen (DO). Figures in the QUAL2K model show comparison
of the calibration model -predicted temperature, nutrient, and dissolved oxygen to the ambient monitoring station data.
^ The resulting graphs are compiled in Appendix H.
... 4.2.1 Temperature Calibration
^ The QUAL2K temperature prediction was initially consistently lower than ambient monitoring station data. Air
.�► temperature, wind speed, and 10% cloud cover inputs were derived from AMS data; therefore, these input variables
remained constant. In order to calibrate the model to ambient data, shade percentage was assumed to be 90% shade
coverage from Reaches 1-11 and 75%shade coverage from Reaches 12-31. The shade percentage was re -calibrated
�'► in the low flow model (60% from Reaches 1-11 and 45% from Reaches 12-31) to match 95'h percentile AMS data.
The calibrated model temperature prediction follows the marked decline in the first 30 km of the model, which is also
,^ seen in the AMS data along this stretch of Neuse River.
4.2.2 Phosphorus Calibration
The 1992 Qual2E report does not explicitly account for phosphorus uptake; instead relying on nitrogen species as the
main nutrient contributions to DO consumption. The newer QUAL2K model has capability to account for phosphorus
^ species impact on DO. AMS data is based upon measurement of total phosphorus, whereas QUAL2K differentiates
...� organic and inorganic sources. In cases where AIMS data was used, it was input as an organic phosphorus value.
QUAL2K model default rates were used for organic phosphorus hydrolysis and phosphorus species settling velocities.
^ An inorganic phosphorus flux rate was used as constant through the model, based on values from the EPA Falls Lake
Nutrient Exchange study (EPA 2018). It should be noted that the measured and predicted phosphorus concentrations
^ in the river are small (less than 0.5 mg/L), and are not expected to have large impact on the DO prediction within the
given range.
Am►
The organic phosphorus hydrolysis rate, phosphorus species settling rates, and inorganic phosphorus sediment flux
^ rate determined in this calibration model were also used in the December calibration and the low flow models.
102%
^
A=k Dewberry �,o. i,u•! -- 202U I Neuse River QUAL2K Model Report FINAL 111
^
/►
^

4.2.3 Organic Nitrogen Calibration
An initial organic nitrogen hydrolysis rate of 0.02/d and settling rate 0.05 m/d from the 1992 Qua12E report were used
in the QUAL2K model. These initial rates resulted in model prediction of organic nitrogen much lower than AMS data
for the entire stretch of the Neuse River. To more accurately predict the organic nitrogen concentration the hydrolysis
rate for Organic Nitrogen was decreased from the 0.021d to 0.005/d while the settling rate of organic nitrogen was kept
at 0.05 m/d. The calibrated hydrolysis rate is with -in the range published in a 1983 EPA report; the calibrated rate was
used in the December calibration model as well as the low flow models. The Organic N model -prediction and AMS data
for the selected stretch of the Over is between 3.5 and 6.5 mg/L.
4.2.4 Ammonia Calibration
The nitrification rate in the 1992 Qual2E model study was 0.5/d; the rate used in this study was 0.35/d.Prescribed NH4-
N sediment flux was based on measurement from the Falls Lake Nutrient Exchange & SOD Study (EPA 2018). Both
the model and the AMS data indicate an overall downward trend of ammonia through the selected section of the Neuse
River, sharply decreasing between Falls Dam and Raleigh (approximately the first ten reaches of the model). AMS
data in the Neuse River varied between 4.0 mg/L NH3-N at Falls Dam, decreasing to 0.30 mg/L at Goldsboro; model
predictions were between 4.0 mg/L at Falls Dam, decreasing to 0.50 mg/L at Goldsboro. The nitrification rate of 0.35/day
was used for all models.
4.2.5 Nitrate Calibration
The denitrification rate used in this study is 0.1/d rate, used in the 1992 Qual2E report. The AMS data is between 0.1
mg/L and 0.6 mg/L and model predictions are within the same numerical range: nitrate in the Over is fairly low.
Denitrification rate of 0.1/d was used for all model scenarios.
4.2.6 Dissolved Oxygen Calibration
The oxygen reaeration rate (Ka) is a critical parameter in the QUAL21K model for predicting the dissolved oxygen profile
in a waterway. Oxygen reaeration rate may be specified in QUAL2K for each reach by a selected empirical formula,
most reaeration formulas rely on stream velocity, stream depth, and slope of the waterway. For the calibration models,
several QUAL2K-programmed reaeration models were compared for each reach. The 1992 QUAL2E model used the
Langbien and Durum formula between Falls Dam and Goldsboro. Langbien and Durum reaeration model predicted
dissolved oxygen most closely to AMS data; better than other reaeration models such as Owen -Gibbs or O'Connor
Dobbins. The Langbien and Durum formula predicts reaeration rate proportionate to velocity (U) and inversely
proportionate to an exponential stream depth (H) (Ka = 3.3(7-1.33)) along the waterway. This reaeration model was
used for all the QUAL2K models.
The Sediment Oxygen Demand (SOD) is another critical parameter influencing dissolved oxygen predictions in the
QUAL2K model. The SOD is calculated internally by default in the QUAL2K model; however, the internal calculation
relies on algae inputs, which are largely unknown parameters in the Neuse River. So instead of internal calculation, an
SOD value was derived from measured values in the Falls Lake Nutrient Exchange & SOD Study (EPA 2018)7. The
SOD value was temperature -corrected using an Arrhenius relationship, based on measured temperatures in the river
between'Falls Dam and Goldsboro. The 1992 QUAL2E study of the Neuse River measurement of SOD was used as a
reference; the SOD from the 1992 QUAL2E study was lower than the value in the 2018 Study. The bottom coverage
for SOD was assumed to be 100%, as the field -measured values were meant to be representative of the sand/silt/rock
bottom conditions in the Neuse River.
. Dewberry,ALJOUsi 17 2020 Neuse River QUAL2K Model Report FINAL 112 .�..

.,
Using both the Langbien Durum formula for oxygen reaeration and the temperature -corrected SOD value from the 2018
"m% EPA Study, the calibration model predicts dissolved y p oxygen within 0.5 mg/L of ambient monitoring station data.
Figure 5.3 contains the DO Profile results from the Water Quality Calibration model.
5. LOW FLOW MODEL RESULTS
The calibrated kinetic and hydraulic parameter inputs were used to develop a low flow model of the Neuse River
between Falls Dam and Smithfield. The model was developed using summertime high water temperatures and low,
7Q10 low flow in the River to model the most critical DO conditions for the waterway. As noted previously, the high
0 . temperature and low flow conditions do not coincide under normal operation of Falls Dam, which dictates a higher
summertime release flow rate; but NC DEQ has requested this scenario in case there are years of drought.
At the low flow conditions in the Neuse River, contributions of point sources become more significant; notably in this
section of the Neuse River, the Neuse W WTP is permitted to discharge up to 75 MGD, which plays a large role in the
Amok predictions at the 7Q10 of the Neuse River and somewhat dwarfs the impact of the downstream Little Creek WRF.
Three low flow models were developed to compare Little Creek WRF discharging: 2.5 MGD (current NPDES permit
.� limit), 6 MGD Ian (expansion in the near term), and 10 MGD p p ) (projected future capacity). These three models show
maximum daily BOD and NH3-N loading from point sources based on their daily maximum permit limits. An additional
model was developed to show Little Creek WRF at 10 MGD, while modeling all NPDES sources at monthly average
BOD and NH3-N limits (where applicable) to compare what is a more likely long term scenario. These two scenarios
were developed to compare to instantaneous and average water quality standards in the river. the daily maximum limit
.�. scenarios may be compared against the minimum instantaneous water quality standard of 4.0 mg/L; and the monthly
average scenario against the daily average water quality standard of 5.0 mg/L.
..n The model predicts DO is increasing at the location of the Little Creek WRF. In -part recovering from upstream nutrient
influx and partially due to the natural channel slope in the river at this location. The daily max low flow models predict
a DO of 4.8 mg/L atthe location of the Little Creek WRF (around 114.68 km upstream of the end of model at Goldsboro).
_ For all three daily max low flow scenarios, the model predicts DO increasing after Little Creek WRF; in part likely due
to the additional flow- it takes 3 km downstream of Little Creek WRF to see a DO suppression in the 6 MGD and 10
�'► MGD scenarios. It should be noted that this is a very slight difference between the scenarios; <0.1 mg/L difference in
DO prediction. The maximum difference in DO prediction with the expansion is observed 25 km downstream of the
discharge: where the 2.5 MGD scenario predicts a DO of 5.00 mg/L. compared to the 6 MGD scenario which predicts
look DO of 4.96 mg/L, and the 10 MGD scenario which predicts DO of 4.92 mg/L. Though the DO difference is greatest at
Amok this downstream location, the difference is less than 0.1 mg/L due to the Little Creek WRF expansion, and the DO at
that location is greater than the DO at the outfall. In fact, this model does not predict a discernable, characteristic DO
drop due to the Little Creek WRF. This is likely due to effects of overriding features near the discharge that dwarf the
impact of Little Creek WRF: the large 75 MGD Neuse River WWfF discharge is less than 14 km upstream of Little
^` Creek WRF and Johnston County WTP is permitted with withdrawal up to 14 MGD just over 11 km downstream of the
,..�, Little Creek WRF. The WiP also discharges up to 4 MGD of what is assumed to be very low nutrient wastewater to
the Neuse River. The difference in DO impact to the River is very small between Little Creek WRF discharge flow rate
at both 2.5 MGD up to 10 MGD. The model shows this is likely due to low organic and nutrient limits, increasing DO at
the point of discharge attributable partially to the River geometry, and the impact of other dischargers and withdrawals
that have a bigger impact.
Dewberry,
'��` Neuse River UUAL2K Model Report FINAL 13

The monthly average low flow scenario shows when monthly average limits for NPDES sources are used in the model,
the DO prediction is above the daily average water quality standard of 5.0 mg/L in the Neuse River for the entire model
geography. As expected, the biggest difference in the monthly average versus daily max NPDES limits happens at the
largest NPDES discharge source: the Neuse River WWiF.
Based on the results of these models, the Neuse River has sufficient assimilative capacity to accept thg additional flow
and loading from Little Creek WRF expansion; showing a relatively small impact between 2.5 MGD to 10 MGD
discharge from the Little Creek WRF. The models predict that at low flow, high temperature critical DO conditions
modeled in the Neuse River with daily max NPDES dischargers, the DO would stay above the minimum instantaneous
water quality standard of 4.0 mg/L; and with monthly average NPDES discharge levels, the DO is predicted to stay
above the daily average water quality standard of 5.0 mg/L. A comparison of the model -predicted DO profiles for all
four low flow scenarios may be found in Figure 5.1.
6. NEUSE RIVER DISCUSSION
Historical data along the Neuse River was reviewed in order to bring context to the QUAL2K model results. Five Total
Maximum Daily Load (TMDL) limits have been implemented in the Neuse River Basin since 2002, as follows:
Neuse River Estuary — Total Nitrogen (2002)
Big Lake, Reedy Creek, and lake Wackena — Aquatic Weeds (2006)
Perry Creek — Biological Integrity (2010)
Pigeon House Branch — Fecal Coliform, Copper (2003)
Swift Creek and Williams Creek — Biological Integrity (2009)
Since the implementation of TMDLs, historical data collected at ambient monitoring stations indicates the minimum DO
measured downstream of the Little Creek W WiP in the Neuse River has increased. With few exceptions, the average
DO measured at the AMS (J4170000) downstream of Little Creek WWTP has also increased. Table 6.1 summarizes
ambient monitoring station DO data from 2000-2008 and from 2009-2018 along the Neuse River between Falls Dam
and Goldsboro. Appendix E contains ambient monitoring station DO data as well as a summary of available BOD,
TKN, ammonia and nitrate data at the ambient monitoring stations for the stated timeframes for stations between Falls
Dam and Goldsboro.
Historic Neuse River data shows dissolved oxygen near the Little Creek WRF outfall has increased on average over
the past ten years over previous time periods (from 7.94 mg/L on average, measured from 2000-2008 at AMS
J4170000, to 8.32 mg/L on average measured from 2009-2018). At the monitoring station downstream the outfall, the
measured minimum dissolved oxygen has also steadily increased; measuring above water quality standard of 5.0 mg/L
for all but a single data point in the past ten years (180 samples of dissolved oxygen have been collected at AMS
J4170000 from 2009-2018; 4.9 mg/L was the lowest measured on 7/26/2011).
Dewberry' Ugu;lI Neuse River QUAL2K Model Report FINAL 114 --

Table 6.1. Neuse River Dissolved Oxygen Measurements from Falls Dam to Smithfield (2009-2018)
Monitoring
Station Distance
from QUAL2K
endpoint at
Smithfield
Km
Measured
Avera a
rig Dissolved00
Minimum
Maximum
009r
Average Minimum
Maximum
J1890000
167.13
9.28
5.70
16.30
9.30 4.70
14.50
J2330000
137.08
N/A
N/A
N/A
8.15
5.90
11.40
44050000
132.57
7.64
4.80
12.50
8.17
6.20
11.80
J4130000'
119.19
7.24
5.00
12.40
8.07
5.70
11.60
J4170000'
114.62
7.94
4.50
15.30
8.32
4.90
14.80
J4190000•
105.83
7.76
4.90
12.60
8.16
6.10
11.60
J4370000
91.72
8.53
5.40
14.90
8.63
5.34
12.93
J5250000
47.30
7.58
4.10
12.80
7.97
5.90
11.90
J5970000
0
8.38
5.00
14.50
8.18
3.24
13.60
•AMS J4130000 is located about 5 km upstream of the Little Creek WRF outfall; J4170000 is located less than 0.1 km downstream of
the oulfall; and J4190000 is just under 10 km downstream.
7. CONCLUSIONS
Based on results of the QUAL21K model, the Neuse River has sufficient assimilative capacity to accept the additional
mass loading of organic and nutrients from the Little Creek WWTP expansion, even modeled at the most critical
environmental conditions for DO in the River. Little Creek's expanded discharge from 2.5 MGD to 10 MGD had
relatively small impact (less than 0.1 mg/L DO) at the location of discharge; the model predicts the expansion will not
have a DO suppression effect until 3 km downstream of the discharge, and the largest impact is seen 25 km
downstream of the discharge, where the modeled impact remains <0.1 mg/L. By the model endpoint at Goldsboro, the
Neuse River DO prediction is within 0.02 mg/L for all three Little Creek WRF flow rate scenarios.
The QUAL21K model predicts that DO remains above 4.5 mg/L from Falls Dam to Goldsboro under the critical conditions
of 7Q10 low flow and high temperatures with maximum daily NPDES discharge of nutrients and BOD from point
sources. The model predicts DO above 5.4 mg/L for the entire stretch of river under critical conditions when point
.� sources meet their NPDES monthly average limits for summer. These predictions are in line with what has been
historically observed in the Neuse River at Ambient Monitoring Stations from Falls Dam to Goldsboro since
implementation of the TMDLs.
Aft
Dewberry'
.�ugusi I Neuse River QUAL2K Model Report FINAL 1 15

REFERENCES
i. Chapra, Steven C. Surface Water Quality Modeling. New York: McGraw-Hill,1997; reissued Waveland Press Inc.
2008).
2. NC DENR, Division of Environmental Management, Technical Support Branch. AAQual 2E-UNCAS Application to
the Neuse River From Falls Dam to Streets Ferry in North Carolina. October 1992.
3. Chapra, Steve C., Greg J. Pelletier, and Hua Tao. OUAL2V-- A Modeling Framework for Simulating River and
Stream Water Ouality (Version 2.12) Documentation and User's Manual. Tech. Medford, MA: Tufts U, n.d. Print.
4. U.S. Department of the Interior; U.S. Geological Survey. Streamstats 4.0. 06 April 2016.
http:/hyater.usgs.gov/osly/streamslats/north mrolina.htnll
5. U.S. Geological Survey, 1998. Low Flow Characteristics and Drainage Profiles for Selected Streams in the Neuse
River Basin, North Carolina Water -Resources Investigation Report 98-4315
6. U.S. Environmental Protection Agency, 1983. Technical Guidance Manual for Performing Waste Load Allocations,
Book IL Streams and Rivers. USEPA Office of Water Regulations and Standards, Washington, D.C. 20460. EPA-
440/4-84-020
7. U.S. Environmental Protection Agency, 2018. Falls Lake Nutrient Exchange and Sediment Oxygen Demand (SOD)
Study Final Proiect Report. Project ID: 18-0362
Dewberry Neuse River QUAL21K Model Report FINAL 116

Tables
www.dewberry.com

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
TABLE 2.2 Point Source NPDES Discharge Limits on Neuse River from Falls Dam to Goldsboro
POINT SOURCE NPDES DISCHARGE LIMITS ON THE NEUSE RIVER FROM FALLS DAM TO GOLDSBORO
PROJECT: NEUSE RIVER QUAL2f; MODEL FOR TOWN OF CLAYTON NPDES
CLIENT: TOWN OF CLAYTON
LOCATION: 1000 Durham Sueet Extension, Clayton, NC 27523
PROJECT NUMBER: 501IS315
DATE: 09/1012D20
Permit Number
Owner/Operator
Facility Name
Type
Permitted Flotrrirl
BOOS, 20'C (mg/ll
T5S (mg/L)
NH3-N (mg/L)
TKN
NO2/NO3
TN
TP (mg/L)
Fecal Coliform
(clu/100 mll
DO (mg/L)
pH
Estuary N
Allocation
MGD
mr/s
Monthly
Avg
Daily
Maxj11
Monthly
Avg
Daily
max
Monthly
Avg
Daily
Maxj'
Monthly
Avg
Daily
Max",
Monthly
Avg
Daily
Maxj11
Monthly
Avg
Daily
Max"'
Discharge
Allocation
(Ib/yr)
Quarterly Avg
Monthly
Avg
Daily
Max"'
Min Daily
Avg
SM.
lb/yr
NCO056278
River Mill COA
River Mill WWTP
Domestic
0.02
0.0009
30
45
30
45
M&R: 2x/month
M&R: Ix/month
M&R 1x/month
M&R- lb/manth
404
M&R:1x/month
200
400
6-9
202
NCO030759
City of Raleigh
Smith Creek WWTP (RRF)
Municipal, Large
6
0,2629
S.0
7.5
30
45
1
3
M&R: lx/week
M&R: lx/week
M&R; 1K/week
70,214
2
200
400
S.0
6-9
3S,408
NCO060577
Aqua NC
Beachwood WWTP
Domestic
0.1
00044
7.5
11.25
30
45
1
5
M&R:2x/month
M&R 2x/month
M&R: 2x/month
2.022
M&R:2x/month
200
400
6.0
6.9
1.011
NCDO40606
Aqua NC
Barclay Downs WWTP
Domestic
0.035
0.0015
30
45
30
45
M&R: 2x/month
M&R: Ix/month
M&R: ix/month
M&R: Ix/month
708
M&R: Sx/manth
200
400
&R: weekl
6.9
3S4
N00040266
Knightdale Estates MHP
Limited Partnership
Knightdale Estates MHP WWTP
Domestic
0.025
0.0011
27.0
40.5
30
45
4.8
T24,1
M&R' IK/month
M&R: Ix/month
M&R: Ix/month
506
M&R: Ix/month
200
400
5.0
6-9
253
NCO038784
Aqua NC
Neuse River Village WWTP
Domestic
0.035
0.0015
30
45
30
45
M&R: lx/week
-
M&R: 1K/month
708
M&R: Sx/month
200
400
6.9
354
NCD056391
Aqua NC
Cress Creek Mobile Estates
Domestic
0.05
0.0022
30
45
30
45
3
15.0
M&R:2x/month
M&R; 2x/month
M&R 2x/manth
1,415
M&R: 2K/month
200
400
5.0
6.9
708
NCDO29033
City of Raleigh
Neuse River WWTP
Municipal, Large
75
3.28S9
5.0
7.5
30
45
1
3
M&Rt lx/week
M&R: lx/week
M&R: 1x/week
697,373
2
200
400
5.0
6.9
343,687
NCOU25453
Town of Clayton
Little Creek WWTP
Municipal, Large
2.5
0.1095
S.0
7.S
30
45
1
3
M&R: lx/week
M&R. Ix/week
M&R: lx/week
22.932
2
200
400
6.0
6 9
11,416
NCO064564
Aqua NC
Neuse Colony WWTP
Domestic
0.35
GAIS3
S.0
1 7.5
30
45
I
30
M&R: Wweek
M&R LK/week
M&R: lx/week
8,447
2
200
400
6.0
6.9
4,224
NCO08473S
Johnston County
Department of Public
Utilities
Johnston County WTP ist
WTP
4
0.1753
30
45
M&R:4x/year
M&R Ix/month
M&R: Ix/month
6-9
NCD083348
Johnston County
Department of Public
utilities
Smithfield WTP
WTP
0.3
0.0131
-
30
45
M&R:4K/year
M&R: 4x/year
M&R:4x/year
6.9
NCO030716
Johnston County
Department of Public
Utilities
Central Johnston County Regional WWTF
Mun-dpal, Large
13.5
0.5915
S.0
7.S
30
4S
1 1
3
M&R:lx/week
M&R: lx/week
M&R: Ix/month
71.477
2
200
400
6
6.9
35,739
NCDD03417
Duke Energy Carolinas
H F. Lee Energy Complex
Domestic
2.16
D.0946
30
100
-lx/we
M&R: Ix/month
3,260
2,282
NMO23949
City of Goldsboro
Goldsboro WRF
Mun cipal, Large
14.2
0.6221
4.0
6.0
30
45
1
3
M&R lx/week
k4&R: ek
M&R 1x/week
1991822
2
6-9
139,876
Permit Number
Owner/Operator
Facility Name
Type
Permitted Flow
GODS, 2D'C (mg/1)
TSs (mg/LI
NH3-N (mg/L)
TKN
NO2/NO3
TN
TIP
Fecal Collform
(cfu/100 ml)
DO img/Ll
pH
Estuary N
Allocation
MGD
ma/s
Monthly
Avg
Daily
Max",
Monthly
Avg
Daily
Max411
Monthly
Avg
Daily
Max"'
Monthly
Avg
Dolly
MaxIII
Monthly Daily
Avg Maxi`)
Monthly
An
Daily
MUM
Discharge
Allocation
(Ib/yr)
Quarterly Avg
Monthly
Avg
Dolly
Max"'
Min Daily
Avg
S.U.
Ib/yr
N03056278
River Mill COA
River M..i WWTP
Domestic
0.02
0.0009
30
45
30
45
M&R: 2x/month
M&R- ix/month
M&R: Ix/month
R:lb/month and lb
404
MIM lx/month
2DO
400
6.9
202
NC00307S9
City of Raleigh
Smith Creek WWTP (RRFI
Municipal, Large
6
11.2629
I0.0
15.0
30
4S
2
6
M&R: lx/week
M&R: 1K/week
70,914lb/grand
70,814
2.0
200
400
5.0
6.9
35.408
NCO060577
Aqua NC
Beachwood WWTP
Domestic
0.1
0.0044
1S.0
22.50
30
45
2
30
M&R, 2x/month
M&R: 2x1month
M&R:2K/month
2,022
M&R: 2x/month
200
400
6.0
6.9
1,011
NC0040606
Aqua NC
Barclay Downs WWTP
Domestic
0.03S
0.0015
30
45
30
45
M&R:2K/month
M&R Ix/month
M&R: Ix/month
M&R: Ix/month
708
M&R: lx/month
200
4D0
&R: weekl
6.9
354
NCO040266
Wilhldale Estates MHP
Limited Partnership
Knightdale Estates MHP WWTP
Domestic
0.025
0.0011
30.0
45.0
30
45
21.7
35.0
M&R. ix/month
M&R. 2x/month
M&R: Ix/month
506
M&R: lit/month
200
400
S.D
6.9
253
NCO038794
Aqua NC
Neuse River Village WWTP
Domestic
0.035
0.0025
30
45
30
4S
M&R: Ix/week
-
M&R:1x/month
708
M&R: Ix/month
200
400
6A
3S4
NCO056391
Aqua NC
Cross Creek Mobile Estates
Domestic
0.05
0.0022
30
45
30
45
14
35.0
M&R: 2x/month
M&R: 2x/month
M&R: 2x/month
IA15
M&R; 2x/month
200
400
S.0
6A
708
NC9029033
City of Raleigh
Neuse River WWTP
Municipal, Large
75
3.2859
10.0
15.0
30
AS
2
6
M&R Ix/week
M&R: lx/week
M&R:1x/week
687,373
2
200
400
5.0
6-9
343,667
NCO025453
Town of Clayton
Little Creek WWTP
Municipal, Large
2.S
0.109S
10.0
15.0
30
45
2
6
M&R lx/week
M&R: lx/week
I2,832 ib/yr and
22,132
2.0
2DO
400
6.0
6.9
11.425
NCO064564
Aqua NC
Neuse Colony WWTP
Domestic
0.35
1 0.0153
10.0
15.0
30
45
4
20
M&R lx/week
M&R- lx/week
M&R:1x/week
8,447
2
2DD
400
6.0
6.9
4,224
NC0084735
Johnston County
Department of Public
Ut lities
Johnston County WTP:"
WTP
4
0.17S3
30
45
M&R: 4x/year
M&R: lx/mcntF.
M&R: Ix/month
6-9
NCODS3348 jutilities
Johnston County
Department of Public
Smithfield WTP sal
WTP
0.3
0.0131
30
4S
M&R: 4x/year
M&R:4x/year
M&R:4x/year
6.9
NCGU30716
Johnston County
Department of Pub c
Utilities
Central Johnston County Regiona WWTF
Municipal, Large
13.5
0.5915
11.0
15.0
30
45
2
6
M&R: lx/week
M&R: 1x/week
M&R- lit/month
'1,477
2
200
40S
6
6.9
35,739
N00003427
Duke Energy Carolinas
H.F. Lee Energy Complex
Domestic 1
2.16 1
13.0946 1
-
30
300
-
-
M&R: Sx/monti
3,260
-
-
2,282
NCO023949
City of Goldsboro lGoldsboro
WRF
Municipal, Large 1
17.6 1
0.771I 1
8.0 1
12.0
30
45
2 1
6 1
M&R; lx/week I
M&R-Ix/week
M&R: lx/week
199,822
2
-
-
-
6.9
139,876
NOTES
1 Smith Creek RAF and Little Creek WWTP have weekly average limits instead of daily max limas.
2 Four of these facilities have permit conditions to expand permitted discharge flow upon subm ttal of an authorisation to construct (ATC) to the state. All the parameter permit limits remain the same upon expansion to the increase flow rate The facilities and potential future flow rates are as follows Smith Creek RAF from 3 MGD 4current) to 6 MGD (upon ATC
approval(; Cross Creek Mob a Estates from 0.05 MGD (current) to 0.07 MGD (upon ATC approval); Neuse Colony WWTP from 0.3S MGD (current) to 0.75 MGD (upon ATC approval); and Central Johnston County Regional WWTF from 9 5 MGD (current) to 13 5 MGD (upon ATC approva )
3 Johnston County WTP currently has a design potable flowrate (intake) of 12 MGD and maximum monthly discharge now of approximately 1,366 MGD. Upon completion of a WTP expansion, the water treatment plant will have a design flowrate of 14 MGD and permitted discharge up to 4 MGD.
4 Smithfield WTP has a design potable flowrate of 6.2 MGD and a maximum wastewater discharge of 0.3 (0.1 average) MGD.
August 17, 2020 1 Neuse River QUAL2K Model Report F NAL 19

TABLE 2.2 Pofnt Source NPDES Discharge Limits on Neuse River Tributaries from Fags Dam t0 Goldsboro
POW SOURCE NPDES Oft"ARGE LIAtInCIN TAIBLMARIES TO NERSS RIVER M1041 FALLS PAAI TO GOLDSBORO
PROJECT. M;%-SWRWI]R Vt'AL9: k1kR41L FOR TOWN OF L'1.AY It Iv NML4
CLIENT: I I1%VN 11F LLAYTIIN
LL1CATtOM RKIO ol-krM I stn.. LJ yIm, NC 2T52H
PROTECT NUMBE11L 5:'I IN IS
PATE:nlrl'�:u;a
/ormN Number
OwnerlOperahw
Nome
Dhd wve Location
Pemdlred Flow
DOD5, IWC (mg/1}
TSS Img/L{
Monthly O+'JJ
+rF Maalh'
NH LN Irag/Q
TKN
N021NO3
IN
T► mg/Ll
Feel ColJlerrrh
du1100 mQ
DO{ LF
PH
Estuary N
Allocation
MOD
m%r
Monthly
Avg
0211Y
Me hi
Montirly
Iw8
Mlly
Myu'
Manhly
Ar6
MYy
Maau'
MemMy
Avg
Daily.
Maahh
MerdMy
Apt
Daily
MaaIII
Dktamp
Albntkm
(mfyrj
Qwrlmly Aws
Monthly
Ar[
Dady
Maalrh
Min Daily Awl
&a,
Lbfyr
NCOD643M
CarolinaWalerServica
_
Wflowbro4 Subd3Ms4cn WWTP
Domestic
Unnamed lrlb to Beddlnoorld Creek
0.03
00033
15
22.5
30
45
10
1S
MAR Wareei
MAR It/week
MAR. Ix/week
L2L3
MAR: 2xjmonth
2130
400
5.0
69
607
1)"
O.D026
%
75
30
45
2
10
M&R Ixlwaek
MAR lxlweek
MAR. Ix/week
1,213
MAR: 2x/monlh
200
400
5-0
69
607
NCW65714
Aqua NC
Tradewlndi.WWTP
Oomntic
Hrtls Creek
005
0.G022
30.0
45u
i0
45
12
35
MAR. Wmunth
MAR Z..inonlh
M&R: WmonthH4M.
MAR: IR/month
200
400
6.9
SG6
NC0a56505
ua NC
Ma14rd CrolUngWWTP
Oomestlr (Hodges
MlOCr.ek
#1
a00"
313.0
45.00
3D
45
2
10
MAR: Winonth
MAR 2x Amonth
MAR: 2x/menth
2
200
400
S.O
69
L011
NC0051322
Cardin+Water s mica
shier HJnsWWTP
9amntL IrcclarCnok
0.2%
00113
5
8
30
45
24
12
M&R: weel
MAR Ix/week
M&R:Wmon[h
MAR Wmunth
200
400
5.0 1
69
2,528
I
OA95
0.0217
5
I
30
45 1
17
IS
M&R: d.'weel
MAR Ixlvreek
MAR: Wrnanth
1
200
400
5.0
L 69
2,S20
NCDO6I219
Carolina Water Smlu
Kings Grant SubdMtlm WWTP
Domestik Poplar Creek
Oomnthc 'Fwl+-Creek
Dal
0.21
0.0575
0.0031
00092
0.D0r.
26-0
S.0
20.00
39a
7.5
IS
3C
30
30.0
45
45
4S
20
2
4
350
10.0
20
MAR 1K4nohdh
MAn.2x.momh
M&R.Wmarrih
MAN b1mmth
MAZx/month
M&A.2x/month
MAN 2x/mwth
M&R. Ix/month
MAP, 2x/nowthMAR.
MAR. 2x/mwih
2
Wmunth
200
200
200
400
400
400
5.0
5.0
6
6-9
6-9
64
2,123
2.123
1.163
NCD055706
Crosby UlOnks
CattonwoodlBaywoodyW tP
'Richland
oils
00050
5.00
7.5
300
45
7
30
M&R. momh
M&3L 2R month
MAR 2Rlmonth
M&A. 2xlmonth
200
400
6
6-9
1,163
+CO0117932
WIImHesslSpedw+yefi9731
WdmHeu Neiweri Systems _
GWR
Crory
MAR lxlmonlh
30
45
4SO
450
MAR; L1Year
MAR, Ix/year
69
69
7022
L022
MCW73318
Clarke utilities
WhOoocroviWall WW7
Domestic
Smith CreekMOOG%
00022
O.00m
5-0
So
7.5
75
300
30.0
2
2
10
10
MAR Wmmm
MAR Wmunh
MAR: 2x/mom%
MAR. 2xJmomh
MAR. 2xlmomh
MAR. 2.lmemh
4,044
4.044
2
2
200
290
am
400
5.0
5.0
MCM63746
.0 NC
Deer Chase VW.p
IDonlesilc
om$Creek0.0022
Igo
27.0
30
45
S
25
MAR: 2xlmoith
M&R:Zx/month
MAR. 2x/mamh
4.Y8
MAR: Wmunth
2W
400
5.0
69
2.224
I
Dom
5.0
75
30
16
2
30
MAR. 2x/month
M&R: 2x-monlh
MIR. 2xlmonth
4.44!
M&R,2x/month
ZOO
400
l 5.0
6-9
2,224
'Municipal
'Mun1t#+I
Municipal
BeamdLrr. Crers
lgtk Rarer I
""IV River I
M&R,2x�rnonth
_ 0I75 0.0120
0.fi3 0.0276
S-0
16,0
75
240
30
30
30
4%
45
45
2 50
MAR. T+/gwrher
12 36
MAR: bf-th
M&R Wrnw%
M&R,2xlrnemh
M&R.Ixlmerth
MAR. 2a/menth
M&q: Zxlyear
MAR. lxlmonth
1 4.448
5561
MAR 2x/Monlh
MAR 2x.Year
MAR.2r/manlh
ZOO
200
40D
4011
5.0
5
64
69
6A
2,224
2780
NCDO27726
alk Township Sandarr DlOrict
Fork Townthlp WIP
H[0026662
own of Prnceton
Princeton WYYI➢
HL0064891
awn el lrenk
Torn or Kenl
5.0000
TSOOO
30
s
2 6
MAR. 1./.eek
M&R.1%iweck
MAR. l -11,
7096
2
200
460
S
69
3548
NC0020389
Town al Benwn
Benson WWrP
Municipal. Tare
Hanrrrh Care rk into MITI Creek 1
I9
0.0332
5.0
7.5
30
1 45
1 1 3
1 M&R.1 .eek
MAR. 1 week
M&R: Woreek
j 33,070
2
200
4W
6
&9
Ifi,535
PnmH Humbn
Dwne r/Opentar
Fatlhy Name
Olrrhatge snMilan
Pemdneel Flew,
"Ms.> cImdl.l
TM( 1
HN}N(dgil)
TRN
N001NO3
TN
TP
Fecal [dHorm
(du/S00nA
DO(MA1k)
pH
EOwryN
All".11mh
Mho
mJs
Montidy
Avg
Daily
Me:)
M t{hly
Avy
Rally
Mao'..
Monthly
Avg
DaBi
Mao't'
McMhly Dolly
A M--- �
Monday
A
Deny'
Mad"
I
M-1My. Da14
Avg Mad'
Discharge
Alkatatlen
4WVfI
quarteAy Avg
Matnhlip
Avg
Doll+
Mad"
Min DalkArlF
p.rk
ilh/yr
NCDO64376
Carolina Water Service
WIIS brook WWTP
Llornettic
Unnamed into to Redd-egleld Creek
0,03
0.D013
29
43.5
34
45
20
35
MAR Wweek
MAR. W&Vek
M&R'1./week
L212
MAN 2r1manth
200
400
5.0
64
607
a06
0.0026
10
3S.0
3c
4%
4
I0
M&R,1xSmek
MAR 14aeek
l MAR, IN/week
1,223
MAR. 2.1month
20D
400
S,0
"p
607
NCDDS5714
►qua NC
'rtdewinds YySSrTP
Oomntr
Harm Creek
0,as
0.0022
30.n
45.0
30
45
12
35
MAR. Waoardh I
Man 20.wlh
M&R.2t1monlh
1,011
M&R.2xlmonth
200
400
6.9
SO6
NCousesu5
iAn1uNC
MaI:ard CreasingYkWly
Domestic
Hedges Mill Creek
0.1
O.OD44
30u
45.00
la
45
4
70
MAR. b.'rhonth
M&R.2R/monlh
2.022
I
20o
400
50
69
1.011
14CO051322
Caroina Water Servke
Ashley P.Ir WWFP
Oarnestl=
Poplar Creek
0.25
0.495
0.0130
10
IS
SD
45
8.7
35
: Wvreek
M&N lxlweek
M&N' 2.lmanth
S,05$
MAR Wraonih
200
4DO
so
fig
2,528
0.0217
10
15
30
45
53
76
: l LWeek
M&N I./week
MAR'2xlmanlh
S,055
1
IN
4DO
5.0
6A
2,528
MCON2219
nkna Water Service
ngs Grknt Subdkiwn WWTP
Domestic
Poplar Creek
0,07
0.0031
300
450 30
4S
20
ISO
Wrrwth
MAR Zxlmonth
M&R,ldmonih
4,J46
MAR 2x/memlh
200
400
5.0
6.9
2,123
0.71
0.0092
30.0
15-0
30
45
4
200
RM.WmmRh
2./month
MAR 7xlmanlh
MARIximanth
4,216
t
200
400
50
69
L123
NC 5065706
by 4hlkbes
onwood/Baywood WWTP
Domestic
Poplar Creek
DO575
00025
10 12
I 35.0
300
450
8
35
2a/month
MAR 7xlmeneh
M&R.2xlmanlh
2,325
MAR 2x/month
200
400
fi
69
1163
0.115
00050
10 r.
15.0
300
450
4
70.
2R/month
MAR 2xlmomh
MAR '2xlmrnlh
2.325
M6R'7x Ananlh
200
400
6
69
L163
N00087912
a.Heas lSpeedwaya69731
IwHns Ngi-kSusie.s
GWR
IRlehland Creek
MLR I+/monih
30
45
M&R: IR ar
M&N I.. -War
NCOOa331g
atke Wifities
Ydhlppaerwi l valley WWTP
Domestic
ISmdh Creek
005
00022
IOC
I5.0
30
45
4
20
:2x/month
M842r/month
MAN Zs/month
4,044
2
200
400
5.0
64
2,OZI
0,2
D.DOBS
IO.0
15.0
30
45
4
20
MAR 2./month
M&i 2x/mmnh
MAR 2x/month
4,044 I
2
200
000
5.0
69
L022
NCOOn3746
Aqua NC
Deer Chace WWTP
Damesllc
Toma Creek
0,05
0.0022
I3.0
435
30
45
5
25
MAR 2dmomh
M&r bar/mmylh
MAR Wmunth
4.4491
MAR Wmunth
200
400
5.0
69
2,224
1
0.11
0.0049
IOC
is0
30
4S
4
20
M&R 2.1minh
M&x 2./man1F
M&R Wmunth
4,445
1 MAR trim rnh
200
4DO
5.0
69
2,224
0.22
0.0096
1"
15.0
30
45
4
20
MAR Llmonth
M&IL 20momh
M&R Zx/month
4,448
MAR 2.�mordh
230
45C
5.0
69
2.224
NCO057726
FwaTpwnship Sanit+ pistr.q
Fork Townrfi WTP
Manlcpal
10e+verdam Geer
Mill Wmunth
3S
40
M&R 1x/quarter
MAR.2R/year
MAR Z,Jy,ear
69
MC0026662
Towndpilhulae
Prinm1on YJWFP
Muniapal ;bale Rarer
0.275 00120
Ap
45
i8
45
MAR. W-1,
MAR IRlmordh
M&C lR;manth
MAR 2R/month
5561
an 2xlrrramh
29D
4D0
5
6-9
2780
M00064891
TowndKanN
Tewnof Kenly
Muniapal ,lhtle River
063 00376
18
15
!0
45
4 12
M&N. Ixlweek
M&R: 'Wweek
Map Ix/week
TO%
2
200
400
5
6A
WIN
NCf1020389
7owndBenwn
BenwA WWTP
Munia al.la a ;Hannah Creel into MAl [reek
1,9 00832
!O0
I5.0
30
a5
7 6
M&R Wweel
M&A: Wweek
Man 3x.%vnx
13,070
J
200
400
fi
69
14535
NOTES
1 Willowbrook SubdMsloa WWTPNPDESpermitisupio0,03MGDunti-approvalol ATCto006MGOby NCDEO
2. For the W-koHesipermil Inlmralaon was puled from taserRche Weblink; NW097912
3 for the Farl Township S+ndary Oistdct pnmd inlorrnaHon waspulled from L4serfitihe Welimk NCO0877JG
4 ray the Town of Benson perm! mlorm Rion we, pulkd liven User6che Webink, NDD020399
August 17. 2020 Neuse Ricer OUAL2K Model Report F NAL ; 29

Figures
www.dewberry.com

-
Neuse River -
Richland Creek
'
-
Smith Creek
- -
Falls Lake
Dam
p „•,USGS 02087182
USG S 02087183�
.., .. :.. .,..
.,:.
J1890000
---T--RIver MiIIWWTP
__ _ I�
Toms Creek
223000
-
perry Creek
_ _ _
3mlt h C ak VJVJTP
Harris Creek
J2330000
Beaverdam Creek
1 C �GL/i % I Knightd_ ale Estates MHP WWTP
Barclay Downs W WTP
r r. tiCl e - Mingo Creek
NeuselRrver Village WWTP ee' a „ _ -
": - - - .Crabtree Creek
Walnut Creek --t -
Cross Creek
'U3530000. - -. \ Mobile Estates
J3970000- � �-�, POPIar Creek
J4050000 -
�— Neuse River Resource Recovery Facility
J4110000' -
g Creek �� Little Creek W WTP - Marks Creek (Lake Myra)
Betltlln fieltl - /:__ J I
J4130000 Neuse Colony WNnP
J4170000 Poplar Branch
5--•a• - �' _ --- ' Johnston Court WrP '�,°, Smithfield WTP
USG S02087500 --- _ nH
J4190000 Sevin Creek \ Bawdy Creek"'
USGS 02087570 - ------ \\ r' 1� ccasin Creek
v' _ ARers Branch Beaverdam Creek
J4370000 Black creek
' J5930000
Market Street Bridge in Smithfield -- _
Miry Branch
�/ Little River
i
Big Ditch
NC0030716 - - _ \
CENTRAL JOHNSTON COUNTY WWTP I
e <� N60027949
GOLDSBORO WRF
Polecat Branch --
•• - J5250000 Ll 02089000
J5410000 i
Mill Creek _
"�4in"�• Falling Creek,
J5500000 J5970000
{ NC0003417 Poplar Branch
'ram LEE STEAM ELECTRIC PLANT
1\ USGS`jll N I IM p N la tl a I 1\EI 10 m9 G ph N 1
I I 1 sv I N 1 IHvl ou ph,D itry 1 lua.p D l h se i+at Is l$ra
1 D n en i6d ry r I T n n l D I r U OSycUo E ?SV I s u s e E JIGER&�Y
el-USFSP tlD1,Nl IEnhDta-US T,aa EI fStateH A Iai nU"ta d__
° \ I�pAANIFCenlesloE me�lallnlornwi U.SC aslal ReLel LlotleLDelafehrshetl CtloCer
Legend
e USGS Gages
NPDES
♦ AMS
Dewberry
TITLE
Neuse River GUa12K Model Map
DATE
08/10/2020
ADDRESS
PROJECT
1000 Dudum Street Extension
NEUSE RIVER GUAL2K MODEL FOR TOWN OF CLAYTON
FIGURE 3.1
Clayton, ND 27528
LITTLE CREEK WRIF EXPANSION
0 5 10
A
20 Mlles

0
0
ID
0
0
0
0
0
0
40
0
0
0
D
0
0
CD
0
C)
O
0
0
0
0
0
0
0
C
C.
NOTES
1. THIS LINE DIAGRAM IS A LINEAR REPRESENTATION OF 170 km OF THE
NEUSE RIVER FROM FALLS DAM (170 km) TO GOLDSBORO (0 km), AS
MODELED IN QUAL2K. THIS STRETCH OF THE NEUSE RIVER WAS
MODELED TO EVALUATE THE IMPACT OF THE LITTLE CREEK WRF
EXPANSION ON THE RIVER, AS REQUESTED BY NC DEQ.
2. THE RELATIVE LOCATIONS OF TRIBUTARIES AND NPDES POINT SOURCE
DISCHARGES ARE SHOWN ON THE TOP HALF OF THE LINE. THE
LOCATIONS OF AMBIENT MONITORING STATIONS AND USGS GAGE
STATIONS ARE SHOWN ON THE BOTTOM HALF OF THE LINE.
3. IN THE QUAL2K MODEL, THE RIVER WAS BROKEN UP INTO 31 REACHES;
THE LOCATION OF THESE REACHES IS REPRESENTED BELOW THE LINE
DIAGRAM AND THE LENGTH OF EACH REACH IS INDICATED (km).
4. DISTANCES ARE SHOWN IN KILOMETERS.
NPDES Permit No.
NPDES Discharger Name
NCO056278
River Mill WWTP
NCO030759
Smith Creek WWTP
NCO060577
Beachwood NPDES
NCO040606
Barclay Downs NPDES
NCO040266
Knightdale Estates MHP WWTP
NCO038784
Neuse River Village WWTP
NCO056391
Cross Creek Mobile Estates
NCO029033
Neuse River WWTP
NCO025453
Little Creek WWTP
NCO064564
Neuse Colony WWTP (NPDES)
NCO084735
Johnston County WTP (NPDES)
NCO083348
Smithfield WTP (NPDES)
NCO030716
Central Johnston County Regional WWTF (NPDES)
NCO003417
Lee Steam Electric Plant (NPDES)
NCO023949
Goldsboro WRF (NPDES)
CREEK
CRABTREE
CREEK
NCO030759
NC0040266
NCO056391 NCO029033
NC0025453
TOMS
NC0040606
NC0038784
RICHLAND
CREEK
HARRIS BEAVERDAM
BEDDINGFIELD
MARKS
CREEK
SMITH PERRY
r
CREEK CREEK NC0080577
WALNUT POPLAR CREEK
F
[NCO054564
CREEK
CREEK1
CREEKI
I I
CREEK CREEK
135 km 130 1�5 km
120 km 115 110 km 113
km 160
k n
15
km 1
km
---
145
km
1.40
knj
I
I I
I
I
I
0
J2330000
J3530000 J405000D
J4130000 USGS 2087500 J41901
J4170000
SAS
1 1.56 1 5.43 1
4.89 1 424 1 2.21 1 3.99
A 1.79 1 4.51 1 4.51 2.03 1 4.85
1 1 99 1 4.81 1 3.75 1 5.11 k
REACH 2
REACH 4
REACH 6
REACH 8
REACH 10
REACH 12
REACH 14
REACH 16
(SMITH CREEK)
(SR 2215)
{MILBURNIE DAM)
(SR 1007)
(RALEIGH)
(MARKS CREEK)
{HIGHWAY 42}
(SR 1908)
McAt.n .3 KCAW1 0 KCAGM ! KMAI.M U KtALM 11 KMAUM 1J KtAUH 10
(HIGHWAY 401) (SR 2219) (CRABTREE CREEK) (SR 2555) (SR 2509) (SR 1700) (CLAYTON TOWN BOUNDARY)
Dewberr 'BATE TITLE SHEET N0. 1 3
Y NEUSE RIVER LINE DIAGRAM
Dewberry y Engineers Inc. REACH 1 THROUGH 16
2010 SUITE YQ1PFROAO PROJ. N0. PROJECT FIGURE 3 2
2011E n,
RALEIGH ioaai NEUSE RIVER •
PHONE D1DLEi woi
FJ�"°lal= 50118315. MODEL PROJECT
0

NOTES
1. THIS LINE DIAGRAM IS A LINEAR REPRESENTATION OF 170 km OF THE
NEUSE RIVER FROM FALLS DAM (170 km) TO GOLDSBORO (0 km), AS
MODELED IN QUAL2K_ THIS STRETCH OF THE NEUSE RIVER WAS
MODELED TO EVALUATE THE IMPACT OF THE LITTLE CREEK WRF
EXPANSION ON THE RIVER, AS REQUESTED BY NC DEQ.
2. THE RELATIVE LOCATIONS OF TRIBUTARIES AND NPDES POINT SOURCE
DISCHARGES ARE SHOWN ON THE TOP HALF OF THE LINE. THE
LOCATIONS OF AMBIENT MONITORING STATIONS AND USGS GAGE
STATIONS ARE SHOWN ON THE BOTTOM HALF OF THE LINE_
3. IN THE QUAL2K MODEL, THE RIVER WAS BROKEN UP INTO 31 REACHES;
THE LOCATION OF THESE REACHES IS REPRESENTED BELOW THE LINE
DIAGRAM AND THE LENGTH OF EACH REACH 1S INDICATED (km).
4 DISTANCES ARE SHOWN IN KILOMETERS.
NCO084735
1101km 105ikm 100ikm
J41
NCO083345 NCO030716ARTERS
SWIFT
F—BRANCH
BRABLACK
NCH � CREEK EK F— CREEK
USGS 20875
J4370000
2.7 f 1 556 553 3.35 1 2.14 11.601 6.99
REACH 18 REACH 20 REACH 22
(HIGHWAY 70) (SWIFT CREEK) (BLACK CREEK)
REACH 17 REACH 19 REACH 21 REACH 23
(JOHNSTON COUNTY WTP) (W MARKET STREET/ 70 BUS.) (ARTER-S BRANCH) (MIRY BRANCH)
MIRY
9.22
REACH 24
(POLECAT BRANCH)
POLECAT
BRANCH
cm
�—
21.12
REACH 25
(BAWDY CREEK)
NPDES Permit No.
NPDES Discharger Name
NCO056278
River Mill WWTP
NCO030759
Smith Creek WWTP
NCO060577
Beachwood NPDES
NCO040606
Barclay Downs NPDES
NCO040266
Knightdale Estates MHP WWTP
NCO038784
Neuse River Village WWTP
NCO056391
Cross Creek Mobile Estates
NCO029033
Neuse River WWTP
NCO025453
Little Creek WWTP
NCO064564
Neuse Colony WWTP (NPDES)
NCO084735
Johnston County WTP (NPDES)
NCO083348
Smithfield WTP (NPDES)
NCO030716
Central Johnston County Regional WWTF (NPDES)
NC0003417
Lee Stearn Electric Plant (NPDES)
NCO023949
Goldsboro WRF (NPDES)

NOTES
1. THIS LINE DIAGRAM IS A LINEAR REPRESENTATION OF 170 km OF THE
NEUSE RIVER FROM FALLS DAM (170 km) TO GOLDSBORO (0 km), AS
MODELED IN QUAL2K. THIS STRETCH OF THE NEUSE RIVER WAS
MODELED TO EVALUATE THE IMPACT OF THE LITTLE CREEK WRF
EXPANSION ON THE RIVER, AS REQUESTED BY NC DEQ.
2. THE RELATIVE LOCATIONS OF TRIBUTARIES AND NPDES POINT SOURCE
DISCHARGES ARE SHOWN ON THE TOP HALF OF THE LINE. THE
LOCATIONS OF AMBIENT MONITORING STATIONS AND USGS GAGE
STATIONS ARE SHOWN ON THE BOTTOM HALF OF THE LINE.
3. IN THE QUAL2K MODEL, THE RIVER WAS BROKEN UP INTO 31 REACHES;
THE LOCATION OF THESE REACHES 1S REPRESENTED BELOW THE LINE
DIAGRAM AND THE LENGTH OF EACH REACH IS INDICATED (km).
4. DISTANCES ARE SHOWN IN KILOMETERS.
17
FALLING
BAWDY MILL MOCCASIN CREEK
CREEK
CREEEK BEAVERDAM
I CREEK CRI , CREEK
7.59 1 2.17 1 2.40 1 5.63
REACH 26 REACH 28
(MILL CREEK) (FERRY BRIDGE RD)
REACH 27 REACH 29
(MOCCASIN CREEK) (BEAVERDAM CREEK)
20.60
REACH 30
(LITRE CREEK)
LITTLE
BIG
891
USGS 02089000
J5970000
REACH 31
(ARRINGTON BRIDGE)
Dewberry
Dewberry Engineers Inc.
2s10 VA=FF poAb
SUM OD
RILLBGR NC 27007
PHONE. 919 wi g=
NPDES Permit No.
NPDES Discharger Name
NCO056278
River Mill WWTP
NCO030759
Smith Creek WWTP
NCO060577
Beachwood NPDES
NCO040606
Barclay Downs NPDES
NCO040266
Knightdale Estates MHP WWTP
NCO038784
Neuse River Village WWTP
NCO056391
Cross Creek Mobile Estates
NCO029033
Neuse River WWTP
NCO025453
Little Creek WWTP
NCO064564
Neuse Colony WWTP (NPDES)
NC0084735
Johnston County WTP (NPDES)
NCO083348
Smithfield WTP (NPDES)
NCO030716
Central Johnston County Regional WWTF (NPDES)
NCO003417
Lee Steam Electric Plant (NPDES)
NCO023949
Goldsboro WRF (NPDES)
NEUSE RIVER LINE DIAGRAM
REACH 26 THROUGH 31
. NO. 'PROJECT
501_
NEUSE RIVER
NO. 3OF3
FIGURE 3.2

FIGURE 5.1 NEUSE RIVER QUAL2K MODEL DO PROFILE AT 7Q10 LOW FLOW, SUMMER TEMPERATURE:
LITTLE CREEK WRF DISCHARGE AT 2.5, 6, and 10 MGD
*Note 1: Only major tributaries (>0.25 MGD) and major NPDES sources are identified on the chart. More minor sources are included in the QUAL2K models.
*Note 2: NPDES point source dischargers are modeled at summer maximum daily discharge limits, unless otherwise noted.
T .
i
t
-- Crabtree Creek
r
LCWRF 2.5 MGD i 10.00
• LCWRF 6 MGD
- � - • LCWRF 10 MGD 9.00
DAMS Data Min: 2009-2018 8.00
• AMS Data Avg: 2009-2018
•
• LCWRF 10 MGD;
- NPDES sources @ Monthly Limits 7.00
j I E
-- - --- - - - - - 6.00 0
10 -�- •� ••••••• a�i
an
--� yrfoil -� - 5.00 0
0
--- ------ - • - - - --- -- --- - 4.00 0
Lee Steam Electric Plant (NPDES)
- --- --- �- � 3.00
Smithfield WTP {
Central Johnston County Regional ' 2.00
WWTF (NPDES) Goldsboro WRF (NPDES)
Mocassin Creek
Walnut Creek - - - Polecat Branch Falling Creek 1.00
I
I Black Creek Mill Creek Little River
-r- - - u 0.00
180.00 170.00 160.00 150.00 140.00 130.00 120.00 110.00 100.00 90.00 80.00 70.00 60.00 50.00 40.00 30.00 20.00 10.00 0.00
Neuse River Location- Distance from Model Endpoint in Goldsboro (km)
Little Creek WWTP (NPDES)
Neuse River WWTP (NPDES) i Johnston County WTP
=Smithreek WWTP --
I
Poplar Creek /I
Smith Creek Harris Creek i
Marks
Dewberry
Poplar Branch
Swift
August 17, 2020 1 Neuse River QUAL2K Model Report FINAL 125

FIGURE 5.2 NEUSE RIVER QUAL2K MODEL DO PROFILE FOR FLOW CALIBRATION MODEL (DECEMBER 2012)
*Note 1: only major tributaries (>0.25 MGD) and major NPDES sources are identified on the chart. More minor sources are included in the QUAL2K models.
*Note 2: The calibration model includes the Milburnie dam around 145 km; the dam is not included in low flow scenario models because it was dismantled in 2017.
El
Crabtree Creek : I
Neuse River WWTP (NPDES
Smith Creek WWTP
Smith Creek Harris Creek,
�Il
I. Walnut Cree
�I 1ti ,
11 1►11
•AMS Data For Calibration Date
• AMS Data Avg: 2009-2018
• Flow Calibration Model- Dec 2012
I
• °
To
Little Creek WWTP (NPDES)1
Johnston County WTP
. ft
Poplar Creek
24
12
10
J
E
0
8 0
Q
x
0
6 0
y Lee Steam Electric Plant (NPDES)
Smithfield WTP 4
Central Johnston County Regional
Poplar Branch WWTF (NPDES)
--; L-
t L
Swift Creek
ti
Black Creek
180 170 150 150 140 130 120 110 100 90 80 70
Marks Creel
1- -
Mocassin Creek
Polecat Branch
Mill Creek
Goldsboro WRF (NPDES)
2
Fai#ing Creek
Little River
*0 0 0
60 50 40 30 20 10 0
Neuse River Location- Distance from Model Endpoint in Goldsboro (km)
r 1
Dewberry August 17, 2020 1 Neuse River QUAL2K Model Report FINAL 126

Appendix A
www.dewberry.com

-1800
Neuse77 Plan: Imported Plan 01
Appendix A: HEC-RAS Neuse River Cross Sections m' FALLS DAM AT STATION 12364+90
2000 2200 2400 2600 2800 3000 3200 3400
Station (it)
Leper
Grour
•
Bank

MI
211
204
19
is
Neuse77 Plan Imported Plan 01
Appendkx A= HEC-RAS Neuse River Cross Sections *" us I
0
0
0
0
0
0
0
0
O
0
Legend l
Ground
Ineff ri
Bank Sta I�
C
C
C
C
C
1500 2000 2500 3040 3500
station (ft) C
C
C
C
C
C
C
C
C

21
170 {
0
Neuse77 Plan: Imparted Plan 01
Appendix A: HEC-RAS Neuse River Cross Sections
leper
------ 41-
Grour
•
Bank c
1000 2000 3000 4000 5000
Station (it

220
21
200
190
1$0
170+-
1000
Neuse77 Plan Imported Plan 01
Appendix A: HEC-RAS Neuse River Cross Sections
12 .052 12
2000
Highway 401
Cross Section 1197075
3000
Station (ft
4000
61111111
O
O
O
O
O
O
O
O
O
O
Lege
Ground
•
Bank Ste
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
Q
-� _,
6000 O
O
U
O
f.
Q
C
C

Neuse77 Plan: Imported Plan 01
Appendix A: MEC-RAS Neuse River Cross Sections
Lege
—ram
Grau
•
Bank
1500 2000 2500 3040 3500 4000
Station (ft#

210
200
190
180
170
160 }-
2000
Appendix A: HEC-RAS Neuse River Cross Sections
2200
2400
2600
NeuseT7 Plan- Imported Plan 01
2800
Station (ft)
3000
3200
3400
C
O
C
0
0
C
C
G
Cl
0
Legend r _.
G� �i1
• C
Bank Sta i'
K*Y

Appendix A: HEC-RAS Neuse River Cross Sections Neuse77 Plan Imported Plan 01
1
Legei
—ram
Grow
•
pent:
160
1400 1600 1800 2000 2200 2400 2600 2800 3000
Station (it)

i► ILi
I"
ISO
170
160
ISO+
0
Neuse77 Plan Imported Plan 01
Appendix A: HNC-RAS Neuse River Cross Sections
200
400
600
Station (it
NO
1200
1400
y
CQ
C
C
C
C
C
Legend
Ground �..,
•
Bank Sta I

Appendix A: HEC-RAS Neuse River Cross Sections
150
Neuse77 Plan- Imported Plan 01
WALNUT CREEK AT STATION 11400+00
15 052 — `I` .. --' 15
L•gei
Grour
•
Bank.'
2000
Station (ft)
2500
300D

Appendix A: HEC-RAS Neuse River Crass Sections Netase77 Plan Imported Plan 01
15 .052 15
200
1
1
170
i
1
141400 1600 1800
2000
2200
Station itt
2400
SR 2555
Cross Section 1126775
2800
3000
0
0
O
0
0
0
O
0
O
0
LeligienCil
Ground I
• lJ
Bank It
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
C
C
C
C
3200 C
C
C
O
C
C
C
C
C
C

0
0
0
0
0
0
0
0
0
0 165
0
0
0 160
0
0
0
n 155
�a
C j 150
0
0
0 145
0
0
0
0 140
0
0
0 135
0
0
0
0
0
0
0
0
0
0
Appendix A- HEC-RAS Neuse River Cross Sections Neuse77 Plan- Imported Plan 01
15 mild052 .15
Lege
Raleigh NRRRF G�rou
Cross Section 1116640 •
Bank
2400
Station t tt
K EE
3000

ISO
1
Appendix A; WEC-RAS Neuse River Cross Sections
4600
0
0
0
0
0
0
0
0
Neuse Rarer Detailed Study - Deleted CS Plan Plan 04 B/112019
Neuse River 130,0
13 045 J4 .13
Legenip
SR 2509 lGroun
Cross Section 1105567
4800
SODA
Station (ft)
5200
5600
5800

200
190
180
170
160
150
140
130 +-
4000
Neuse River Detailed Study Plan Multiple Run 4/2212019
Appendix A: HEC-RAS Neuse River Cross Sections Neuse River 123.0
12 .045 .12 0$
Mark's Creek
Cross Section Number 1091980
4500 5000 5500 6000
Station (ft•
6500

200
190
#80
170
160
150
140
130-}-
4000
0
0
0
0
0
0
0
0
Appendix A: HEC-RAS Neuse River Cross Sections Neuse River Detailed Study - Deleted CS Plan Plan 04 8/1/2019 0
NC Hwy 1700TORStructure ID J_NEU_11Detaled Survey Structure
.07 - 12 T-- OT ��-- 045 —�� , O7 12
L
EGFF I-
WSPFT
Crit PF f
�0--
Ground
Ineff
Bank Ste
4200 4400 4600 4800 5000 5200 5400 5600 5800
Statwn tt

190
180
170
160
150
140
130
120-t-
3000
Neuse River Detailed Study. Plan Multiple Run 4122/2019
Appendix A: HEC-RAS Neuse River Cross Sections NC Hwy 42 E TORStructure m J_NEU_Metaifed Survey Structure
111 14 .06 _15 �1. 055 —} 15
441111
4000
4500
Station (ft)
5000
5500
6000

180
170
150
140
13a
120
Meuse River Detailed Study Plan Multiple Run 412212019
Appendix A= HEC-RAS Neuse River Cross ections J XS115 Surveyed
07 T 14 � 07 F 14 �F 055 14 T 055-
Clayton Town Boundary
lief"
4200 4400 4600
4800
Station (it)
5000
5200
54ab
0
0
0
0
0
0
0
0
Legend
EG FU35%
4V5��
I
EG 500-year(I
WS 5 p�ik1J
EG FU20% �J
WS�{�D
EG FU10°%
WS FUIO% =1�
EG 141
WS 100-year
EG 5�
WS 50-year
EG 25-year
4VS 2�y i
EG 10-year Ikkj
WS 10-yearkI�
Ground
Bank Sta i
%00

170
160
150
140
130
120
11350a
Neuse Rarer Detailed Study Plan Multiple Run 412f2019
Appendix A: HEC-RAS Neuse River Cross Sections SR 1908TORStructure ® J_HEu_090etaiied sumey Structure
F .14 `I � 14 -1- 055 — F 14 `I. �--- .14 --�� .07 —+— .14 —�
4000
4500
5000
Staten c ft
5500
6000
6500

Neuse River Detaiied Study Plan Multiple Run 412212019
Appendix A. HEC-RAS Neuse River Cross Sections Neuse River 93 0
14 _055 14
170
160
15D
14G
130
120
11fl
100 +-
4200
4400
4600
4800
5000
Station (ft)
5200
5400
5600

Meuse River Detailed Study Plan Multiple Run 4122/2019
Appen��q
EC-RA Neuse River Cross Sections RR (JGNR} DS
� 14 .1� 15" . 07 —} 14 .0 55 -;I�— 14
,s0-,
150
140
130
120
110
100 --
20aa
25a0
30a0
350 D
4DOD
Station (it
45DO
Highway 70
Cross Section 1014664
5000
5500
6000

150
140
130
120
110
100
s0+_
4000
Neuse River Detailed Study Plan Multiple Run 412212019
Appendix A' HEC- 5 NeuRive Cross Sections
reuse River 75 0
07 .0 * 14;055} 14 � .14V.07A1 �—.07—+1.0 07 If .14! .07— —.14
5000
BOOR
tam" (it)
�000
aoae
9100

RECF'\/ED
AUG 2 6 2020
NCDEQIDWRINPDES
Appendix B
www.dewberry.com

Dra;rage Area. NC 42 to Market Street Bridge
60
sq ml.es
Point Source Contribution/Withdrawl
m'/s
Tributary & Diffuse Flow
3.6
ma/s
Est mated Tributary F caw Contr bution
0.7
m /s
Diffuse Flow Contribution
2.8
ms/s
Appendix B: Neuse River Flow Balance Calculations
NEUSE RIVER QUAL21\ MODEL, FLOW CALIBRATION (DECEMBER 2012)
PROJECT: NEOSE RIVER QUAL2F MODEL FOR TOWN OF CLAYTON NPDES
CLIVNT , TOWN OF CL AYTON
LOCATION: ION Durham StN:n Extension Clayton, NC 27328
PROJECT NUMBER: 50118315
BATE: 06114112019
DESCRIPTION:
This calculation mUnnalm the contribution of tributary and non -point source, d.ffuse, flow to the Neuse River
on the lei tatted QUAL2A model whbratlon day December 11 2J12. Nan-pointsourceflaw matrabutinus have
been estimated using USGS gage station data at three locations (Falls Dam, NC42 in Clayton, and Markel
Street Bodge al 5mithfied Point solace contributions on this day have been estimated using available flow
data from docltarge mamlormg report (DRDI) data
Location
Measured Fksw
Gage Height
QUAL2k Model
Location
(ds)
(m /s)
m
(km)
USGS 02087183- Falls Dam
-'.fi8.1'
I.93
-.0.30
75.41
USGS 02087500- NC42 @ Clayton
200.0
5.66
0.39
22.97
USGS 02067570• Smithfield
309.3.
9.76
L30
0
.. .... n.-.. - I .. - -n... r .,aC-n
at tb. and of lead, to In Ch. auaua nodal
Calculated Tributary and Nan -Point Source Flow Contribution /rom Faf s Dom to NC42 @ Clayton:
Drainage Area: Fa, sDam toNC42
348
sq miles
Point Source Contribution/Withdraw
2AO
ms/s
Tributary & Diffuse Flow
13
m /s
Estimated Tributary FlowContribut.on
12
mla
Diffuse Flow Contribution
0.10
ma/s
Nair rNM maceaor=n1C1hd1tN.nd)1wMunail MI Manerd.nat.dnia NPats OUR dot* laa-tt wuba.d.nday,..doerr..
Calculated Tributary and Non-PolntSoumJrom NC42 near Clayton to Market Street Bridge nearSmlthjkld.,
Nae.:lahmmn C..ty.nd amadla"WrP.r.eMrM tnh beflen N eh.0-,, 0.1 the Ithdr.rl Irma .b4Mt ItI ra.r in- Mom. m.Wbutl n$.
Cakulated Tributary and Non -Point Source Flow Contribution from Fags Dam to SmlthJfeld.
Drainage Area: NC 42 to Market Street Bridge
40B
$q miles
Point Source Contribution/Withdrawl
1.94
m /s
Tributary & Diffuse Flow
4.9
ms/s
Estimated Tributary Flow Contribution
2.0
mils
Diffuse Flow Contribution
2.9
m /s
Tributary Flow Contributions to Neuse River
QUALM location
Drainage
Area
Estimated Flow Contribution
Point Source Contribution to Tributary
km
Reach
sq MR*%
ins/s
ins/s
Fens Dam to NC-42
Richland Creek
73.10
Tributary
14.2
0.054
0.000
NCDO87912.WrmHess Network Systems
Smith Creek
67.03
Tributary,
23.5
0.091
coal
NCO073318. Wnipporwil Va ley WWTP
Toms Creek (Basin 7, Stream I)
66.45
Tributary
4.68
0.019
0 001
NCD063746, Deer Chase WWTP
Perry Creek (Basin 15, Stream 26)
63.74
Tributary
11.6
0.045
Harris Creek
59.01
Tributary
18.8
0.073
0 001
NCDO65714,Tradew,nds WWTP
Beaverdarn Creek (Basin 12, Stream 1)
55.51
Tributary
7.49
0.029
Mingo Creek (Basin 15, Stream 1)
47AS
Tributary
4.37
0.017
Crabtree Creek
47,45
Tributary
145
0.556
Walnut Creek (Basin 30, Stream 1)
45.27
Tributary
4S.9
0 176
Poplar[reek
37,77
Tributary
9.05
d.043
0.005
NC0051322, Ashley Hills WWTP, NCDO62219 Kings Grant
Subdivision WWTP, NCD065706 Cottonwood/Baywood WWTP
Beddingfield Creek
34.30
Tributary
5.76
0.023
0.001
NCD064378, Willowbrook WWTP
Marks Creek
29,77
Tributary
2B.7
0110
NC 42 to SmWeld Am
Poplar Branch 1.725 Tributary 12.1 072
- trloutanes mat were accounted ror In 15W LtLIALlt model, were accountea tor nere, even it mey represented
Df//use Sources
Reach
Drainage Area
Estimatedf7aw Contr butic 9
sgmiles
DAgaln
% of DA
gain
rat/s
from Falls Dam to NC42 @ Clayton
Headwater
772
Reach I
792
20
5.3%
0.0053
Reach 2
817
25
6.6%
0.0066
Reach 3
835
18
4.8%
0.0047
Reach 4
859
24
6.3%
0.D063
Reach 5
874
15
4.0%
0.0039
Reach 6
377
3
0.3%
0.000B
Reach 7
1030
1531
40.5%
0.0402
Reach 8
1030
0
0.0%
0
Reach 9
1090
60
15.9%
0.0158
Reach 10
1100
10
2.6%
0.0026
Reach 11
1100
0
0.0%
0
Reach 12
1140
40
10,6%
0.0105
Reach 13
1140
0
00%1
0
Reach 14
11501
SO
2.6%
0.0026
from NC42 near Clayton to Market Street Bridge
nearSmithReld
Reach 15
1160
10
16.7%
0.473
Reach 16
1170
10
18.7%
0.473
Reach 17
1180
10
16.7%
0.473
Reach 18
1180
0
0.0%
0.000
Reach 19
1210
30
SO.0%
1.419

Appendix B, Neuse River Flow Balance Calculations
NEUSE RIVER QUALZK MODEL- FLOW CALIRRATION 45EPTERIBER 1013)
PROJECT, NEUSE RIVER QUAl.2A MODEL FDII TOWN OF CLAYTON NPUFS
CLIENT: TOWN OF CLAYTON
LOCATION: IOOU Durham Street Extension Claye-k NC 1752E
PROJECT NUMBER: 30119315
DATE: W:412Ct9
DESCRIPTION:
This calcubtaun estimates the conuibutron of atbutuy and non -paint source. diffuse Row to the Nome Rove#
on the scloctcd QUAL2f; model calibration day Septrmbcr 30, 2013 t+bn pwnt source Row cone eNtuons have
been ptlmated casing USGS gage station data at throe loat tom (Falls Dam. NC-U to Claylatt, and Matkct
Street Dndge at Smithfield Point sowce coninbutront on this day have been estimated using available flaw
data from dscharge monitoring tepurt I DMRI data
Location
Measured Flow
Gage Height
QUAL2k Motel
Location
(ds)
(m /s)
in
(km)
USGS 02087183-Falls Dam
1194
3.37
(07
75.41
LSGS 02087500- NC42 @ Clayton
317.0
8.98
O.A6
2297
USGS 0208757D- Smithfield
_41q,6_j
11.63
2"46
0
an. me r uen.,
.a m... d al R.am 14 In th. QUAL2a -M.
Calculated Tributary and Non Paint Source Flow Contribution irons Falls Dam to NC42 @ Clayton:
Drainage Area, Fals Dam to NC 42
378
sq miles
Point Source Contribution/Withdrawl
2.02
m'/s
Tributary & Diffuse Flow
3.6
m /s
Est mated Tributary Flow Contribution
3.0
m /s
,Diffuse Flow Contribution
0.55
ins/s
No.- Pdnt aa,rce It.. mtme,dan W. wKhd.,d ha beee 41ed wire NPOES OUR eau Ir th4 c9lpaten day. r mar the callarnlen day. a do. was
nooabl._
Calculated Tributary and Nan,PMnt Source from NC42 near Clayton to Market Street Bridge near Smithfield.,
Dra nape Area: NC 42 to Market Street Bridge
60
sq miles
Point Source Contribution/Withdrawl
-0,34
ins/s
Tributary & Diffuse Flow
3.0
ms/s
Est mated Tributary Flow Contribution
O.6
m /s
Diffuse Flow Contribut on
24
ma/s
Nae leh•nen€e.nry and SmnhR.ld wrPa r.Ndeln this t.cew.Me,.Rlv.r, Mua th. xNhdrawl hem thew ptaaala laryr tha*ariyn�r„mt tutbm.
Calculated Tributary and Non-Palai Sourrr Flow Contribution from Falls Dam to Smlthfldd:
Drainage Area NC42 to Market Street Bridge
438
sq miles
Point Source Contribution/Withdrawl
To
m /s
Tributary & Diffuse Flow
6.6
ms/s
Estimated Tributary Flow Contribution
3.6
ms/s
Diffuse Flow Contribution
2.9
m /s
Tributary Flow Contributions to Nettle River
UAt2KLocation
Drainage
Area
Estimated Flow Contribution
Aunt Source Contribution to Tribute
loci
Reach
sq miles
ins/s
ms/s
Fab Dam to NC-42
Richland Creek
73 10
TribLAary
14.2
0.135
0.001
N000879I2, Wi:coHess Network Systems
Smith Creek
6703
Tributary
23.5
0.224
0 001
NCO073318, Whipporwdl Valley WWTP
Toms 'reek (Basin 7, Stream lI
6645
iributary
468
0.045
.0001
NCO063746, Deer Chase WWTP
Perry Creek (Bas.n 15, Stream 26)
6374
'rlbutary
11.6
0 110
Harris Creek
5901
Tributary
18.8
0179
0 001
NOM65714, Tradewinds WWTP
Beaverdam Creek (Basin 12. Stream 1)
5551
Tributary
7.A9
0.071
Mingo Creek (Basin 15, Stream 1)
47ZS
Tr butary
4.37
0.041
_
Crabtree Creek
47AS
Tr hutary
145
1375
Walnut Creek 18asin 30, Stream 11
45.27
Tr butary
459
0.435
Poplar Creek
3777
Trbutary
9.05
0.094
0008
NCD051322, Ashley H,'s WWTP, NOD062219 Kings Grant
SubdNision WWTP, NCD065705 Cottonwood/Saywood WVJTP
Beddintifield Creek
34 30
TTribitary
5.76
0.055
f0.001
NC0064378, Willowbrook V WTP
Marks Creek
29.77
Tributary
28.7
0272
NC 42 t 1 SmkhNW
Poplar Branch 1 725 Tributary 1 12 1 7 0.60
Tributares that were accounted for in 1992 QUALZE model, were accounted for here, even it they represented
D useScurces
Reach
Drainage Area
Estimated Flow Contribution
itm: es
DA gain
%of DA
gain
m'/s
from Falls Dam to NC 42ILs Clayl0rl
Hen dua!er
772
Reach
792
d17
20
53%
00289
Reach 2
2S
6.6%
OA352
Reach 3
835
181
41%
0.0260
Reaca4
859
24
6.3%
00347
Reach 5
674
L 15
4.0%
0.0217
Reach 6
677
3
D.B%
0.0043
Reach 7
1030
153
40.5%1
0.2214
Reach 8
1030
0
0.0%
0
Reach 9
1090
60
1S.9%
0-0358
Reach 7'
1100
10
2.6%
0.0145
Reach 11
1300
0
0.0%
0
Reach 12
1140
40
10 6%
0.0579
Reach 13
I140
0
0.0%
0
Reach 14
1150
10
2.6%1
0.014
from NC42 rtesrC! n to Market Street Bridge near Smithfield
Reach 1S
1160
1A
16 7%
_ 0 398
Reach 16
1170
10
16 7%
0 398
Reach 17
118_0
�i11a0
10
16 7%
0 398
Reaen 18
fi
0.0%
0.000
Reach 19
3210
30
50.0%
1 193

Appendix B: Neuse River Flow Balance Calculations
NEUSE RIVER QUAL2K SIODEI, LOW FLOW
PROJECT: NEUSE RIVER QUAL'K MODEL FOR TOWN OF CLAY TON NPDES
CLIENT: TOWN OF CLAYTON
LOCATION: 1000 Durham Sum Extension. Clayton. NC 27528
PROJECT NUMBER: 50118315
DATE: l I.1172019
AESCRIPTION:
This oaiculauon estimates the mainbmton or tributary and non -point source, dtrfuse, flow to the Neuse River
for the low flow QUAL2K modes scenano
Location
Measured Flow
Gage Height
QUAL2k Model
Locatlon
Ids) (m /5)
m
ikml
USGS 02067183• Falls Dam
49.0 1.39
0.27
75.4I
USGS 02087S00- NC42 @ Clayton
181.0 5.13
0.33
22.97
USGS02087570-Smithfield
184.0 5.21
1.01
0
...,. ­­.maaarm .me u.w wua.awnw Wwrran
at th..nd .i Raaei 14 In ih. QUAL2K model U d. n f aai Dam 1. redr.rad to b. rai-ed to rnaet minimum now larger or Sae d. dawmtream an Smithfield.
Calculated Trlbutory and Nan PaArt Source Flaw Contribution from FaNs Dom to NC 42 @ Clayton:
Drainage Area: Falls Dam to NC 42
378
sq miles
Point Source Contribution/Withdrawl
2.25
m'/s
Tributary & Diffuse Flow
1.49
m /s
Estimated Tributary Flow Contribution
1.28
m /s
Diffuse Flow Contribution
0.20
m'fs
Tributary Flow Contributions to Neuse River
QUAL2K Location
Drainage
Area
Estimated flow Contribution
Point Source Contribution to Tributary
km
Reach
sq miles
m'/s
m'/s
Falls Dam to DK-42
Richland Creek
73.20
Tributary
14.2
0.056
0.000
NCO087912, Wilc, Hess Network Systems
Smith Creek
67.03
Tributary
23.5
0.094
0.002
NOM73318, Wh pporwF Valley WWTP
Toms Creek IBasln 7, Stream 11
66.45
Tributary
4.68
0.021
0,003
N00063746, Deer Chase WWTP
Perry Creek !Basin 15. Stream 26)
63.74
Tributary
11.6
0.046
Harris Creek
59.01
Tributary
18.8
0.077
0.003
NCO065714,Tradewai ds WWTP
Beaverdam Creek (Basin 12, Stream 1)
55.51
Tributary
7.49
0.029
Mingo Creek (Basin 15, Stream 1)
47.95
Tributary
4.37
0.017
Crabtree Creek
47.45
Tributary
145
OS71
Walnut Creek (Basin 30, Stream 11
45.27
Tributary
45.9
0181
Poplar reek
37.77
Tributary
9.05
0.055
0.020
NC00S 1322, Ashley Hi s W WTP, NCO062219 Kings Grant
Subdivision WWTP, NCDOGS706 Cottonwood/Baywood WWTP
Beddingfield Creek
34.30
Tributary
5.76
0.024
.002
NC0064378, Willowbrook WWTP
Marks Creek
29.77
Triburary
2B.7
0.113
NC 42 to SmkMkM
Poplar Branch 1.72S Tributary 12.1 013
NO.: comei ,os11e,m ram„ibmnlmn.andlor wtndrawl has b..meatimatd Left NPDts mdR date twin. V.QWI.m day. a•.., ih. cautnul. day. as dace wn • Tributaries that were accounted for in 1992 QUALM model, were accounted for here, even if they represented
-11.bi..
Calculated Tributary and Mon4WrillSource from NC42 near Clayton to Market Street Bridge nearSmlthfield:
Drainage Area NC 42 to Market Street Bridge
60
sq miles
Point Source Contribution/Withdrawl
-0.5lim
m'/s
Tributary & Diffuse Flow
0.7
m'/s
Estimated Tributary Flow Contribution
0.1
m/s
Diffuse Row Contribution
0.5
ms/s
Nat.: lohmron t:eimty am! smhh4ald Mai ra.Ida In thn m etlen of M. itlnr thui in, wnhdnwl iron th- plants 1s rerpr than any flow-Vlbalion..
Calculated Tributary and Non -Pain Source Flow Contribution from Fags Dam to Smithfield:
Drainage Area. NC 42 to Market Street Bridge
438
sq miles
Paint Source Contribution/Withdrawl
1.68
m /s
Tributary & Diffuse Flow
21
m'/s
Estimated Tributary Flow Contribution
1.4
m'/s
Diffuse Flow Contribution
07
m /s
Diffuse Sources
Reach
Drainage Area
Estimated Flow Contribution
sq miles
CIA gain
% of CIA
gain
ms/s
from Falls Dam to NC42! Clayton
Headwater
772
Reach I
792
20
5.3%
0.0108
Reach 2
817
25
6.6%
0.9135
Reach 3
835
181
4.8%
0.0097
Reach 4
859
24
6.3%
0.0129
Reacts 5
374
15
4.0%
0.0091
Reach
877
3
0.8%
0.0016
Reach 7
1030
153
40.5%
0.0825
Reach 8
1030
0
0.0%
0.00DO
Reach 9
1090
60
15.9%
0.0324
Reach 10
1100
101
2.6%
0.0054
Reach 11
1100
0
0.0%
0.0000
Reach 12
1140
40
10,6%
0.0216
Reach 13
1140
0
0.0%
0.0000
Reach I4
1180
10
2 6%
0.0054
from NC42 nearChipoon to Market Street Brldge near Smithfield
Reach 15
11601
10
16 7%
0.087
Reach 16
1170
10
16 7%
0.087
Reach 17
1180
10
16 7%
0.067
Reach 18
1180
0
0.0%
0.000
Reach 19
1210
30
-'01
3.261

Appendix C
www.dewberry.com

StreamStats
Appendix C: USGS Streamstats Data
Page 2 of 3
StreamStats Report- Falls Dam
Region ID: NC
Workspace ID: NC20191111192649170000
Clicked Point (Latitude, Longitude): 35.94069,-78.58086
Time: 2019-11-11 12:27:03 -0700
Greensboro
, Burlington
HEADWATER
our
L ouisburg
-.
. :''
'Nake FOrest
,Chapel Hill
-
Liberty
-
Zebulun
Car' Raleigh
Knigl,tdale
A
S
*Wendell
shrborr �'32.1' Pitt:b rro ."Pest
-.. ---
ilex My
•��..._,
Basin Characteristics
Parameter
Code
Parameter Description
Value
Unit
CSL10_85fm
Change in elevation between points 10 and 85
5.47
feet per
percent of length along main channel to basin
mi
divide divided by length between points ft per
mi
DRNAREA
Area that drains to a point on a stream
772
square
miles
OUTLETELEV
Elevation of the stream outlet in thousands of
195
feet
feet above NAVD88.
https://streamstats.usgs.gov/ss/ 11 / 11 /2019

StreamStats
Appendix C: USGS Streamstats Data
Page 3 of 3 OMIM
USGS Data Disclaimer: Unless otherwise stated, all data, metadata and related materials are considered to
satisfy the quality standards relative to the purpose for which the data were collected. Although these data and
associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S.
Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data
for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty.
USGS Software Disclaimer: This software has been approved for release by the U.S. Geological Survey (USGS).
Although the software has been subjected to rigorous review, the USGS reserves the right to update the
software as needed pursuant to further analysis and review. No warranty, expressed or implied, is made by the
USGS or the U.S. Government as to the functionality of the software and related material nor shall the fact of
release constitute any such warranty. Furthermore, the software is released on condition that neither the USGS
nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.
USGS Product Names Disclaimer: Any use of trade, firm, or product names is for descriptive purposes only and
does not imply endorsement by the U.S. Government.
Application Version: 4.3.8
https:Hstreamstats.usgs.gov/ss/ 11 /11 /2019

..
StreamStats
Page 2 of 3
^
^
Appendix C: USGS Streamstats Data
^•1
StreamStats Report- Reach 1 End- US-1
0�
Region ID: NC
A
Workspace ID: NC20191107165836907000
Clicked Point (Latitude, Longitude): 35.90881,-78.55453
^
Time: 2019-11-07 09:58:55 -0700
PON
2s' i`
Imo.
den n i
�
,ny
� r
Yanceyville
Reidsville \(—Raxbo.
-„
Hender`An -
- - Oxford
OWN
^
ield
P\
Dor
1'eensbor0 FAeban R!'tner
-•--
Louisburg
- -
Polk�
Burlington �{.. :HilLbor, -d
-
` �Du-ham sake Forest
,Chapel Hill
^
Libern%
Zebulon
^
Raleigh Knightdale
^
Q *Wendell
htboro - Pittsborn •Apex
SIId Cihf
^,
^.
Omsk
QUALM Neuse River Model- Falls Dam to Smithfield
^
^
Basin Characteristics
Parameter
Code Parameter Description Value
Unit
DRNAREA Area that drains to a point on a stream 792
square
miles
CSL10_85fm Change in elevation between points 10 and 85 5.16
feet per
.�
percent of length along main channel to basin
mi
divide divided by length between points ft per mi
^
^
^
https://streamstats.usgs.gov/ss/
11 /7/2019
^

StreamStats
Appendix C: USGS Streamstats Data
Page 3 of 3
Parameter
Code Parameter Description
OUTLETELEV Elevation of the stream outlet in thousands of
feet above NAVD88.
Value Unit
181 feet
USGS Data Disclaimer: Unless otherwise stated, all data, metadata and related materials are considered to
satisfy the quality standards relative to the purpose for which the data were collected. Although these data and
associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S.
Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data
for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty.
USGS Software Disclaimer: This software has been approved for release by the U.S. Geological Survey (USGS).
Although the software has been subjected to rigorous review, the USGS reserves the right to update the
software as needed pursuant to further analysis and review. No warranty, expressed or implied, is made by the
USGS or the U.S. Government as to the functionality of the software and related material nor shall the fact of
release constitute any such warranty. Furthermore, the software is released on condition that neither the USGS
nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.
USGS Product Names Disclaimer: Any use of trade, firm, or product names is for descriptive purposes only and
does not imply endorsement by the U.S. Government.
Application Version: 4.3.8
https://streamstats.usgs.gov/ss/ 11 /7/2019

Appendix C: USGS Slreamstats Data
i
Asak
Ir_
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arm
Issi
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ass,
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Ass"
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exalt
amA
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Alm%
e^
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esalk
Asak
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Asia,
en►
etas
/A
StreamStats Report- Reach 2
Region ID:
Workspace ID:
Clicked Point(Latftude, Longitude):
Time:
e
Ir�l Aimnl� ,.
NC
NC20191107192610957000
35.90888.-78.53879
2019-11 07 12:26 31 0700
t
conr,� r.,i
Basin Charamedstios
Parameter
Code
Parameter Description
Value Unit
CSL10_85fm
Change in elevation between points 10 and 85 percent of length along main channel to basin divide divided
4.98 feet per mi
by length between points ft per mi
DRNAREA
Area that drains to a point on a stream
817 square
miles
OUTLETELEV
Elevation of the stream outlet in thousands of feet above NAVDBB.
181 feet
USGS Data Disclaimer: Unless otherwise stated, all data, metadata and related materials are considered to satisty the quality standards relative to the purpose for which the data were
collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty
expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty.
USGS Software Disclaimer: This software has been approved for release by the U.S. Geological Survey (USGS). Although the software has been subjected to rigorous review, the USGS reserves
the right to update the software as needed pursuant to further analysis and review. No warranty, expressed or implied, is made by the USGS or the U.S. Government as to the function llty of the
software and related material nor shall the fact of release constitute any such warranty. Furthermore, the software is released on condition that neither the USGS northe U.S. Government shall
be held liable for any damages resulting from its authorized or unauthorised use.
USGS Product Names Disclaimer: Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Application Version: 4.3.8

StreamStats
Appendix C: USGS Streamstats Data
Page 2 of 3
StreamStats Report- Reach 3
Region ID: NC
Workspace ID: NC20191107171020223000
Clicked Point (Latitude, Longitude): 35.88410,-78.52796
Time: 2019-11-07 10:10:39 -0700
ub rty' 2ebvlon
Caly. Raleigh,: Knighaiale 'Wendell
Q • �J=w>>i
iebor, '32 __ Pitt:boro-- ,Apt+
`ilpl city. — •CW 11 er
QUAL2K Neuse River Model- Falls Dam to Smithfield
Basin Characteristics
Parameter
Code Parameter Description Value Unit
DRNAREA Area that drains to a point on a stream 835 square
miles
CSL10_85fm Change in elevation between points 10 and 85 4.81 feet per
percent of length along main channel to basin mi
divide divided by length between points ft per mi
https:Hstreamstats.usgs.gov/ss/ 11 /7/2019

Awak
A"►
mmq
A■q
An1
Auw►
An►
r
0000
Amok
StreamStats Page 3 of 3
Appendix C: USGS Streamstats Data
Parameter
Code Parameter Description Value Unit
OUTLETELEV Elevation of the stream outlet in thousands of 178 feet
feet above NAVD88.
USGS Data Disclaimer: Unless otherwise stated, all data, metadata and related materials are considered to
satisfy the quality standards relative to the purpose for which the data were collected. Although these data and
associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S.
Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data
for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty.
USGS Software Disclaimer: This software has been approved for release by the U.S. Geological Survey (USGS).
Although the software has been subjected to rigorous review, the USGS reserves the right to update the
software as needed pursuant to further analysis and review. No warranty, expressed or implied, is made by the
USGS or the U.S. Government as to the functionality of the software and related material nor shall the fact of
release constitute any such warranty. Furthermore, the software is released on condition that neither the USGS
nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.
USGS Product Names Disclaimer: Any use of trade, firm, or product names is for descriptive purposes only and
does not imply endorsement by the U.S. Government.
Application Version: 4.3.8
https:Hstreamstats.usgs.gov/ss/
11/7/2019

StreamStats
Appendix C: USGS Streamstats Data
Page 2 of 3
StreamStats Report REACH 4
Region ID: NC
Workspace ID: NC20191107174517087000
Clicked Point (Latitude, Longitude): 35.84811,-78.52999
Time: 2019-11-07 10:45:36 -0700
9
DUYneI
Creedmoor
_ Louisbur
.Hillsborough
M irharrt
Basin Characteristics
Parameter
fJ c
5D
... R%.! icy
l� .,,,, )� �70
R 47
-uu
Cary
'Raleigh
Code Parameter Description
CSL10_85fm Change in elevation between points 10 and 85
percent of length along main channel to basin
divide divided by length between points ft per mi
DRNAREA Area that drains to a point on a stream
OUTLETELEV Elevation of the stream outlet in thousands of
feet above NAVD88.
-orest
Zebulon.
of
Knightdale 1Nendell
Value Unit
5.41 feet per
mi
859 square
miles
174 feet
https:Hstreamstats.usgs.gov/ss/ 11 /7/2019

StreamStats
Appendix C: USGS Streamstats Data
Page 3 of 3
edn1
r
pn�
USGS Data Disclaimer: Unless otherwise stated, all data, metadata and related materials are considered to
satisfy the quality standards relative to the purpose for which the data were collected. Although these data and
associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S.
Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data
for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty.
USGS Software Disclaimer: This software has been approved for release by the U.S. Geological Survey (USGS).
Although the software has been subjected to rigorous review, the USGS reserves the right to update the
software as needed pursuant to further analysis and review. No warranty, expressed or implied, is made by the
USGS or the U.S. Government as to the functionality of the software and related material nor shall the fact of
release constitute any such warranty. Furthermore, the software is released on condition that neither the USGS
nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.
USGS Product Names Disclaimer: Any use of trade, firm, or product names is for descriptive purposes only and
does not imply endorsement by the U.S. Government.
Application Version: 4.3.8
https:Hstreamstats.usgs.gov/ss/
11 /7/2019

Appendix C. USGS Streamstats Data
A study area Is needed before viewing the report
Reach 5
Region ID: NC
Workspace ID: NC20191107193648955000
Clicked Point (Latitude, Longitude): 35.81353. 78.53527
Time: 2019-11-07 12.37. 11 -0700
e. .
se
!N
of
atDurh.en
I aupVl
i—N-:
ZabWon
-"tary -
'�aleigh
KNWhgiala
wandell
_emu
Basin Characledsfice
Parameter
Code Parameter Description Value Unit
CSL70_85fm Change In elevation between points 10 and 85 percent of length along main channel to basin divide divided 5.26 feet per ml
by length between points ft per mi
DRNAREA Area that drains to a paint on a stream 874 square
miles
OUTLETELEV Elevation of the stream outlet In thousands of feet above NAVDBB. 173 feet
General Disclaimers
Parameter values have been edited. computed flows may not apply.
Upstream regulation was checked for this watershed.
This watershed is percent regulated, computed flows may not apply.
This watershed has been edited, computed flows may not apply
The resulting delineations are derived from digital elevation data and storm drain vectors that have been processed to enforce drainage through storm drains.
Urban regression equations for peak flows were not developed using streamgages which incorporate storm drain delineations and therefore should be used with
caution.

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StreamStats Report- Reach 6
Region ID:
Workspace ID:
Clicked Point (Latitude, Longitude):
Time:
Appendix C: USGS Streamstats Data
.VJni, fub..{
INC
NC20191107194411982000
35,80031,-78,53929
2019-11-0712:44:31 -0700
91 ,
p
ss'
Raladh [nrtbam
""a
40
k �)t
1
n l,
n Kri'�h(dala• eal
ca-q
.nary ,. detgh +li Meal_ Wendel'
Basin Chamcledsdca
Parameter
Coda
Parameter Description
Value
Unit
CSL70_85fm
Change in elevation between points 10 and 85 percent of length along main channel to basin divide divided
5.09
feet per ml
by length between points ft per mi
DRNAREA
Area that drains to a point on a stream
877
square
miles
OUTLETELEV
Elevation of the stream outlet in thousands of feet above NAVD88.
168
feel
General Disclaimers
Parameter values have been edited. computed flows may not apply.
Upstream regulation was checked for this watershed.
This watershed Is percent regulated, computed flows may not apply.
This watershed has been edited, computed flows may not apply.
The resulting delineations are derived from digital elevation data and storm drain vectors that have been processed to enforce drainage through storm drains.
Urban regression equations for peak flows were not developed using streamgages which incorporate storm drain delineations and therefore should be used with
caution.

Appendix C: USGS Streamstats Data
A study area is needed before viewing the report
StreamStats Report- Reach 7
Region ID: NC
Workspace ID: NC20191107195011944000
Clicked Point (Latitude, Longitude): 35.75426,-78.53190
Time: 2019-11-07 12.50:31 -0700
uutm,f
�.nenn,�.•� so ' 1
Louisburg. 15
_Hill 1.... ugM1
y
Durham .✓—s. Forest loch
eua- ao - 'se
uus
el Hill.
9)
I.EttHrr
APJUr Wr Zebulon.
sIa
'kai.:,,h AmghtEale Wendell
8 Truatf Apes'
,Garner 'P -
JeiH.aLe. - r„aA
Basin Characteristics
Parameter
Code Parameter Description
CSL70_05fm Change in elevation between points 10 and 85 percent of length along main channel to basin divide divided
by length between points ft per at
DRNAREA Area that drains to a point on a stream
OUTLETELEV Elevation of the stream outlet in thousands of feet above NAV088.
General Disclaimers
Parameter values have been edited, computed flows may not apply.
Upstream regulation was checked for this watershed.
This watershed is percent regulated, computed flows may not apply.
This watershed has been edited, computed flows may not apply.
Value Unit
feet per ml
1030 square
miles
157 feet
The resulting delineations are derived from digital elevation data and storm drain vectors that have been processed to enforce drainage through storm drains.
Urban regression equations for peek flows were not developed using streamgeges which Incorporate storm drain delineations and therefore should be used with
...Von.

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..
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enA
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/,
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omoe1
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/►
Appendix C: USGS Streamstats Data
StreamStats Report- Reach 8
Region ID: NC
Workspace ID: NC20191107201637141000
Clicked Point (Latitude, Longitude): 35.75452,-78.53197
Basin Characteristics
Parameter
Code
Parameter Description
Value
Unit
CSL10_85fm
Change in elevation between points 10 and 85 percent of length along main channel to basin divide
4.78
feet per mi
divided by length between points it per mi
DRNAREA
Area that drains to a point on a stream
1030
square
OUTLETELEV Elevation of the stream outlet in thousands of feet above NAVD88.
miles
154 feet
USGS Data Disclaimer. Unless otherwise staled, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were
collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no
warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, not shall the act of distribution constitute any such
warranty.
USGS Software Disclaimer. This software has been approved for release by the U.S. Geological Survey (USGS). Although the software has been subjetted to rigorous review, the USGS
reserves the right to update the software as needed pursuant further analysis and review. No warranty, expressed or implied, is made by the USGS or the U.S. Government as to the
functionality of the software and related material nor shall the fact of release constitute any such warranty. Furthermore, the software is released on condition that neither the USGS
nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorised use.
USGS Product Names Disclaimer. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government
Application Version: 4.3.8

Appendix C: USGS Streamstats Data
StreamStats Report- Reach 9
Region ID: NC
Workspace ID: NC20191107201213151000
Clicked Point (Latitude, Longitude): 35.72669,-78.51343
Time: 2019-11-07 13:12:35 -0700
Raleigh
Basin Characteristics
Parameter
Kni ghtd,aI
Code Parameter Description
CSL10_85fm Change in elevation between paints 10 and 85
percent of length along main channel to basin
divide divided by length between points ft per mi
DRNAREA Area that drains to a point on a stream
11
.. <A
Value Unit
4.64 feet per
mi
1090 square
miles

Appendix C: USGS Streamstats Data
A study area is needed before viewing the report
StreamStats Report- Reach 10
Region ID: NC
Workspace ID: NC20191107203455686000
Clicked Point (Latitude, Longitude): 35.72357,-78.47704
Time: 2019-11-07 13:35:19 -0700
Aram
Ape'
I
Basin Characteristics
Parameter
Clayton - -
., -- Kenl
Code Parameter Description
Value Unit
DRNAREA Area that drains to a point on a stream
1100 square
miles
CSL10_85fm Change in elevation between points 10 and 85
4.54 feet per
percent of length along main channel to basin
mi
divide divided by length between points ft per mi

Appendix C: USGS Streamstats Data
StreamStats Report- Reach 11
Region ID: NC
Workspace ID: NC20191107202142852000
Clicked Point (Latitude, Longitude): 35.70256,-78.47802
Time: 2019-11-07 13:22:03 -0700
Raleigh
Raleigh
Kniqhtdale• `fas
m
,Clayton
Basin Characteristics
Parameter
Code Parameter Description
DRNAREA Area that drains to a point on a stream
CSL10_85fm Change in elevation between points 10 and 85
percent of length along main channel to basin
divide divided by length between points ft per mi
Zebuloi
JCC —
Wendell
Value Unit
1100 square
miles
4.51 feet per
mi

Appendix C: USGS Streamstats Data
StreamStats Report- Reach 12
Region ID: NC
Workspace ID: NC20191107202928036000
Clicked Point (Latitude, Longitude): 35.69193,-78.44054
Time: 2019-11-07 13:29:48 -0700
Raleigh Kniyhtdale•
Nendel I
_ GameF,.
ale W
out
Basin Characteristics
Parameter
Code Parameter Description
CSL10_85fm Change in elevation between points 10 and 85
percent of length along main channel to basin
divide divided by length between points ft per mi
DRNAREA Area that drains to a point on a stream
Value Unit
4.39 feet per
mi
1140 square
miles

Appendix C: USGS Slreamstats Data
StreamStats Report- Reach 13
Region ID: NC
Workspace ID: NC20191107204024710000
Clicked Point (Latitude, Longitude): 35.67480,-78.43597
Time: 2019-11-07 13:40:45 -0700
Card'
--- Apex'
oily Springs'
Basin Characteristics
Parameter
pie
"Raleigh
.Wake rarest
Knightda.e *endell
106 Pn
96
.garner
_flayton
.rl.. \
ao
T
Code Parameter Description
CSL10_85fm Change in elevation between points 10 and 85
percent of length along main channel to basin
divide divided by length between points ft per mi
DRNAREA Area that drains to a point on a stream
Buckhom
Reservoir
Value Unit
4.38 feet per
mi
1140 square
miles

Appendix C: USGS Streamstats Data
un
tea\
ar^
ara
as.,
'sish
I�
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Asisk
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/,
Aisk
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0-ft
As,
01^
aka
Ask
010s\
Asi\
A study area is needed before viewing the report
StreamStats Report- Reach 14
Region In
Workspace ID:
Clicked Point (Latitude, Longitude):
Time:
_... Zebu[..
r " Aremi
Aped
Holly Springs' P
x�
Fuquay VarinY
Selma -
Smithfield -
NC
NC20191107204526983000
35.64724,-78.40569
2019-11-07 13:45:40 -0700
1
ar
Basin Characteristics
Parameter
Code Parameter Description
CSL10 85fm Change in elevation between points 10 and 85 percent of length along main channel to basin divide
divided by length between points it per mi
DRNAREA Area that drains to a point on a stream
OUTLETELEV Elevation of the stream outlet in thousands of feet above NAVD88
General Disclaimers
Parameter values have been edited, computed flows may not apply.
Upstream regulation was checked for this watershed.
This watershed is percent regulated, computed flows may not apply.
This watershed has been edited, computed flaws may not apply.
Value Unit
4.31 feet per mi
1150 square
miles
132 feet
The resulting delineations are derived from digital elevation data and storm main vectors that have been processed to enforce drainage through storm drains.
Urban regression equations for peak flows were not developed using streamgages which incorporate storm drain delineations and therefore should be used with
ci utlon.

Appendix C: USGS Streamstats Data
StreamStats Report REACH 15
Region ID: NC
Workspace ID: NC20191107212144522000
Clicked Point (Latitude, Longitude): 35.63890,-78.37567
Time: 2019-11-07 14:22:05 -0700
.Wake Forest
99 ,
4�
C dl'
r 'Raleigh Knightcla,e *endell
apex'
j B errrett
I To.•:1.; ,
=!;�;'Hoily Springs*
ro
rrc.
Basin Characteristics
Parameter
Code Parameter Description
CSL10_85fm Change in elevation between points 10 and 85
percent of length along main channel to basin
divide divided by length between points ft per mi
DRNAREA Area that drains to a point on a stream
Value Unit
4.25 feet per
mi
1160 square
miles

Appendix C: USGS Streamstats Data
StreamStats Report
REACH 16
Region ID: NC
Workspace ID: NC20191107212657652000
Clicked Point (Latitude, Longitude): 35.60674,-78.33694
Time: 2019-11-07 14:27:20 -0700
Basin Characteristics
Parameter
Code Parameter Description
CSL10_85fm Change in elevation between points 10 and 85
percent of length along main channel to basin
divide divided by length between points ft per mi
DRNAREA Area that drains to a point on a stream
Value Unit
4.12 feet per
mi
1170 square
miles

Appendix C: USGS Streamstats Data
A study area is needed before viewing the report
StreamStats Report
Region ID:
Workspace ID:
Clicked Point (Latitude, Longitude):
Time:
Gamer
Basin Characteristics
Parameter
REACH 17
NC
NC20191107213000625000
35.58318,-78.32464
2019 11-07 14-.30-.23 -0700
'4endell -
;.Hills 'Kenly
i
Code
Parameter Description
Value Unit
CSL10_85fm
Change in elevation between points 10 and 85 percent of length along main channel to basin divide divided
4.07
feet per mi
by length between points it per mi
DRNAREA
Area that drains to a point on a stream
1180
square
miles
OUTLETELEV
Elevation of the stream outlet in thousands of feet above NAVD88.
113
feet
general Disclaimers
Parameter values have been edited. computed flows may not apply.
Upstream regulation was checked for this watershed.
This watershed is percent regulated, computed flows may not apply.
This watershed has been edited, computed flows may not apply.
The resulting delineations are derived from digital elevation data and storm drain vectors that have been processed to enforce drainage through storm drains.
Urban regression equations far peak flows were not developed using slreamgages which Incorporate storm drain delineations and therefore should be used with
caution.

A•,
.r.
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ny
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seek,
seek
Ae\
Appendix C: USGS Streamstats Data
A study area is needed before viewing the report
StreamStats Report
Region ID:
Workspace ID:
Clicked Point (Latitude, Longitude):
Time:
Reach 18
Zebulon.
%kendell
,pat
wings'
A
ay-Varkia'
Selma.
Smithfield
-Angier
Four Oaks
NC
NC20191107213320896000
35.55712,-78.32529
2019.11-07 14:33:43 -0700
."/Jrlvnt. •
97
'.Y [eY a•pf.v'
N_SOH Pv H'r Ar[f:1Pr
7
Wilson.
Uml `
Kenly
e1e5R0
I-
90WAYW WN, 't
Oe
arnar '
Basin Characteristics
Parameter
Code Parameter Description
CSL70_B5fm Change in elevation between points 10 and 85 percent of length along main channel to basin
divide divided by length between points it per not
DRNAREA Area that drains to a point on a stream
OUTLETELEV Elevation of the stream outlet in thousands of feet above NAVDBB
General Disclaimers
Parameter values have been edited, computed flows may not apply.
Upstream regulation was checked for this watershed.
This watershed is percent regulated, computed flows may not apply.
This watershed has been edited, computed flows may not apply.
Value Unit
3.93 feel per
mi
1180 square
miles
110 feet
The resulting delineations are derived from digital elevation data and storm drain vectors that have been processed to enforce drainage through storm
drains.

Appendix C: USGS Streamstats Data
StreamStats Report- Reach 19
Region ID: NC
Workspace ID: NC20191107213646450000
Clicked Point (Latitude, Longitude): 35.51282,-78.34986
Time: 2019-11-07 14:37:07 -0700
7,1
rr
WE + )
Cary*
i,
— Apek'
Holly Springs'
rf5
F uquay-V ar in a•
Basin Characteristics
Parameter
'Raleigh Knightda,e *endell
\ Garner BuckLom
..,� Reservoir
-Clayton
40
F
Smithfie 4 r ,
Angier
Code Parameter Description
CSL10_85fm Change in elevation between points 10 and 85
percent of length along main channel to basin
divide divided by length between points ft per mi
DRNAREA Area that drains to a point on a stream
Value Unit
3.89 feet per
mi
1210 square
miles

Appendix D
www.dewberry.com

EFFLUENT
Appendix D - NPOES Permit and DMR Data
P k NPDES PERMIT NO. NC 0056278 DISCHARGE NO. 001 MONTH December YEAR_ 2012
FACILITYNAME RIVERMILLCONDOS CLASS If COUNTY WAKE
/m% OPERATOR IN RESPONSIBLE CHARGE (ORC): William Lamm GRADE: IV PHONE [phone]
^ CERTIFIED LABORATORIES: V MENT-1 ENVIROLINK INC.
CHECK BOX IF ORC HAS CHANGED x PERSON(S) COLLECTING SAMPLES. William Lamm
Mail ORIGINAL allaUNIMIP�1to'
^, ATTN: CENTRAL FILES I \ L-';' �. x W �J.�.3�R!� -c . • '�`t ��
DIV. OF WATER QUALITY (SIGNATURE OF OPERATOR IN RESPONSIBLE GE) DATE
1617 MAIL SERVICE CENTER MAR 0 5 202 BY THIS SIGNATURE, I CERTIFY THAT THIS REPORT IS
�^ RALEIGH, NC3769F-1617 ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
-n+
0
00400
50060
1 00310
1 00610
00530
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7.
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:25
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Y
0.0
7. 0
I7.0
7.20
Y
<
AVERAGE
0.002
9.8
6.96
16.7
0.0
0.24
0.00
7
7.11
3.32
0.20
0.78
2.54
Am%
MAXIMUM
0.004
10.9
7.11
17.0
<2.0
0.37
<2.8
3
7.36
4.90
0.20
1.87
4.60
Polk
MINIMUM
0.000
9.0
6.78
14.0
Q.0
0.11
<2.5
<1
6.59
2.53
0.20
0.30
0.73
Comp. (C)/Grab (G)
Month) Limit
G
G
6.9
C
50
G
30.0
G
G
30.0
G
200
G
C
C
C
C
0.020
P\ TOTAL MONTHLY FLOW = 0.064
/",
nq DEM Form MR-1 (12/93)

Appendix D - NPDES Permh and DMR Win
w LQ Q. °c u- LI.l1 - /'ul
NPDES PERMIT NO. NC0001376 DISCHARGE NO. 001 MONTH December YEAR 2012
FACILITY NAME RIVERPLACE, LLC CLASS IV COUNTY WAKE /11k
OPERATOR IN RESPONSIBLE CHARGE (ORC): WILLIAM LAMM GRADE: IV PHONE [phone]
CERTIFIED LABORATORIES: ENVIRONMENT PIN
CHECK BOX IF ORC _gyp{�� PERSON(S) COLLECTING SAMPLES William Lamm ^
Mail ORIGINAL and
��T'td: AT M: CENTRAL FILES x �J
DIV. OF WATER QUALITY FEB 0�, 2013 (SIGNATURE OF OPERATOR IN RESPONSIBLE CHARGE) DATE
1617 MAIL SERVICE CENTER BY THIS SIGNATURE. I CERTIFY TMATTHIS REPORT IS
RALEIGH. NC276MI617 CENTRAL FILES ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE. ^,
II I
WII. 1
ErITTM
morIffilturnit
DEM Form MR-1 (1203)

pft� , --'
pw� Appendix D - NPDJFFE#hand DMR Data
Owns
pool
NPDES PERMIT NO. NC0001376
DISCHARGE NO. 001 MONTH
October
YEAR 2013
FACILITY NAME RIVERPLACE, LLC
CLASS IV COUNTY
WAKE
f�
OPERATOR IN RESPONSIBLE CHARGE (ORC):
WILLIAM LAMM GRADE: IV
PHONE [phone]
CERTIFIED LABORATORIES: ENVIRONMENT
I.
�1
CHECK BOX 1F ORC HAS CHANGED RLJ
PERSON(S) COLLECTING SAMPLES William Lamm
Mail ORIGINAL and ONE COPY to:
_���•
ATTN: CENTRAL FILES
x
DIV. OF WATER QUALITY
(SIGNATURE OF OPERATOR 1N RESPONSIBLE CHARGE)
DATE
1617 MAIL SERVICE CENTER
BY THIS SIGNATURE, I CERTIFY THAT THIS REPORT IS
RALEIGH, NC 27699.1617
ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
l�1
pok1
Amok
1a"1
r11,
,M'1
/wol�
AM&1
!o,
osmo�
I•w1
1
Month!y Limit
�_®_
• 1
®
1 •
11
_-®----
DEM Form MR -I (12/93)

Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDES PERMIT NO. NC0001376 DISCHARGE NO. 001 MONTH SWtember YEAR 2013
FACILITY NAME RIVERPLACE. LLC CLASS _ 1V COUNTY WAKE
OPERATOR IN RESPONSIBLE CHARGE (ORC): WILLIAM LAMM GRADE: , V PHONE [phone]
CERTIFIED LABORATORIES: ENVIRONMENT 1
CHECK BOX IF ORC HAS CHANGED PERSON(S) COLLECTING SAMPLES William Lamm
Mail ORIGINAL and ONE COPY to: �\\
ATTN: CENTRAL FILES
DIV. OF WATER QUALITY (SIGNATURE OF OPERATOR IN RESPONSIBLE CHARGE) DATE
1617 MAIL SERVICE CENTER BY THIS SIGNATURE. I CERTIFY THAT THIS REPORT IS
RALEJGIL NC 27699-1617 ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
mlim
EMMA
li 1
111 I
11�11
11.1
11 I
11 I
11 1
®
11
®
Monthly Limit
DEM Form MR-1 (12/93)

Appendix D - NPDES Permit and D
�'�sec1
EFFLUENT
NPDES PERMIT NO. NCO064378 DISCHARGE NO. 001 MONTH December YEAR_2012
FACILITY NAME Willawbrs d VLy CLASS 11 COUNTY Nuke
CERTIFIED LABORATORY (1) Environment I CERTIFICATION NO. 10
(list additional laborsto " on the backside/page 2 ofiItis form)
OPERATOR IN RES GRADE III
PERSON(S) COLLE Harrel av ORC PHONE [phone]
CHECK BOX IF ORC HAS ED NO FLOW / DISCHARGE FROM SITE * L�
Mail ORIGINAL and ONE tad 12013
/5/13
DWMONNO WATERQ A&ENTRAL RLE "CHARGE)
ISl7 MAEE, sEEmcs c�rraEc pw(�/B /� BY THIS SEGNA7 URE, i CERTEN THATT OSRU ORT LS
RALEE6EE EC 27694- zQ O V ACC MTB AND COMPLETE TO TnE BEST O! MY xNowuwaE.
I•I,: 1
III !
11 i t
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77
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m
i 41
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mmmm
m--_
mmmm
m
/ 1
©m
mmmm
MEW TIT,
DWQ Pane MR4 (11/04)

Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDES PERMIT NO. NCO064378 DISCHARGE NO. 001 MONTH December YEAR_2012 .--.
FACILITY NAME Willowbrook WWTP CLASS 11 COUNTY Wake
CERTIFIED LABORATORY (1) Environment 1 CERTIFICATION NO. 10 .�
(list additional laboratories on the backside/page 2 of this form)
OPERATOR IN RESPONSIBLE CHARGE (ORC) Stemhen Harrell GRADE -III
PERSON(S) COLLECTING SAMPLES Steve Hamll/Dave Ryniak ORC PHONE [phone]
CHECK BOX IF ORC 1 IV \/ [� NO FLOW / DISCHARGE FROM SITE � 0
Mail ORIGINAL and COPY to:
ATTN: CENTRAL FILES 6 0 B 2013 • "-'
DIVISION OF WATER QUALrAE (81 NA' RE O OPERATOR IN RESPONSIBLE CHARGE)Ulyl
1617 MAIL SERVICE CENTS BY THIS SI URE, I CERTIFY THAT THIS REPORT IS
RALEIGH NC 27699-1617 8ENTRAL FILES ACCURATE AND COMPLETE TO THR BEST OF MY KNOWLEDGE.
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Appendix D - NPDES Permit and DMR Data
NPDES PERMIT NO._ N00065714 DISCHARGE NO. _ _001 MONTH. December YEAR2012
FACILITY NAME_ Tradevands CLASS_ II COUNTY Wake
CERTIFIED LABORATORY (I )_ENCO CERTIFICATION NO._591
(list additional laboratories on the backsidelpage 2 of this lone)
OPERATOR IN RESPONSIBLE CHARGE (ORC)_ Otis Fields GRADE II CERTIFICATION NO._I 1537
PERSON(S) COLLECTING SA�M�➢f{¢JQ6191 a�D ORC PI-6536966
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DIVISION OF WATER QUALI I:ENTRAL FI E GNATURE OF OPERA R M RESPONSIBLE CHARGE) DATE
1617 MAIL SERVICE CENTER BY THIS SIGNATURE, 1 CERTIFY THAT THIS REPORT IS
RALEIGH, NC 27699-1617 DW0180 ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
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1 Appendix D -NPDES Permit and DMR Data
NPDES PERMITNO.NC0058505 DISCHARGE N0:001 MONTH_ DECEMBER
_
FACILITY NAME_ Mallards Crossing cuss II COUNTY Wake
CERTIFIED LABORATORY (1)_ENCO
(list additional laboratories on the backside/page 2 of this form)
OPERATOR IN RESPONSIBLE CHARGE (ORC) Ods Fields
PERSON(S) COLLECTING SANT s ry
CHECK BOX IF ORC HAS C
ATTN: CENTRAL LESS to' FEB 01 2 3
DIVISION OF WATER QUALITY
1617 MAIL SERVICE CENTECENTRAL F1 ES
RALEIGH NC 27699-1617 pvuqlpt
P'►
YEAR_ 2012 oft
V NO. 591 ^,
GRADE_ 11 CERTIFICATION NO._I 1537
ORC PH0NE_919-653-6966
BY THIS SIGNATURE, I CERTIFY THAT THIS REPORT IS
ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
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7.34
1.7
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11
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t4=*N
Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDES PERMIT NO. NCO025453
DISCHARGE NO. 001 MONTH
December
YEAR 2012
FACIUTY NAME Little Creek Water ReGamation
CLASS IV
COUNTY Johnston
OPERATOR IN RESPONSIBLE CHARGE (ORC)
James Warren GRADE
IV PHONE [phone]
CERTIFIED LABORATORIES (1) Pace analytical, Environment One (2)
CHECK BOX FORcHAS CHMcEo
/�D PERSON(S)COLLECTINGSAMPLES
Leigh Honeycutt, David Atkinson
v
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Mail ORIGINAL and ONE C
Charlie Harrell
„^
ATM: Information Processing Unit
Division of Water Quality JAN 8 0 2013
x_
Allllil�
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(SITtH
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BY SIGNITURE, I CERTIFY THAT THE REPORT IS
'"i'
RALEIGH. NC 27699
ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE
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111jj 1G/ 1 1/ IG G.v 116wi

Appendix
D - NPD S Permit and DMR Data
NPDES PERMIT NO. NCD029033 DISCHARGE No. 001 MONTH December YEAR 2012
FACILITY NAME Nauss River Waste Water Treatment Plant CLASS IV COUNTY Wake
OPERATOR IN RESPONSIBLE CHARGE (ORC) John Gibson GRADE IV PHONE [phone]
CERTIFIED LABORATORIES (1) Nauss River WWTP Lab (2) Meritech
CHECK BOX IF ORC HAS CHANGED PERSON(S) COLLECTING SAMPLES: Plant Personnel; Names on File
Mail ORIGINAL and cRECY EIVED
ATTN: CENTRAL FILES x ��/ ,� /LZ/
DIVISION OF WATER Qi)" 8-2013 (SIGNATURE OF OPERATOR IN RESPONSIBLE CHARGE) DATE
1617 MAIL SERVICE CENTER, BY THIS SIGNATURE I CERTIFY THAT THIS REPORT IS
RALEIGH, NC 27626 GtN I RAL FILES ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE
D
A
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MG/L
100ML
MG/L
MG/L
MG/L
LBS/MO
MG/L
e2
_
.973
8,9
_-;.x 6.8
<2.0
- <0.100
,
s3I
0000
24
N
39.421
19.1
<2.0
<0.100
<2.5
7.1
1.94
1.22
0.72
;2.0..,20,1Og.
4
0000
24
Y
1 39.015
20.1
6.9
<2.0
<0.100
<2.5
30
6.8
0.42
0.42
<0.50
6
0000
24
Y
1 39.994
19.8
6.9
<2.0
<0.100
<2.5
1
6.9
3.47
2.71
0.76
-
._
;00003
_.
Q4"�.:3'i.
B
4 ;829
_ ......
19 4
.-,` 6`.9
�.
,.
';<0 t00:
<2.5
_...
' <1
.-
.6-8..
...,...
_
�'2• 7i9
--
. 084
8
0000
24
N
39,085
19.7
6.9
<2.0
<0.100
<2.5
6.9 3.28
2.40
0.88
�38.981
"19:8.'.'
10
0000
24
Y
40.4831
20.3
7.0
<2.01
0.140
<2.51
31
6.7 1,59'
0.65
0,94
11
0000 .
`0000
`.24is
43 '12
_ :,z0_=
" w9
2__0
F <0.400
.'<0100
1,,<z s
:`: s
z'i
::�:.1 Os
05
<0;50'
-
12
24
Y
40.533
19.8
6.9
<2.0
<2.5
171
7.1
1.89
1.27
0,62
0.91
13
0000'
-; 241F
.Y;a''4j
N,130
19;0
6�8
2,"°}`i<Qn4�y,
<25
",=,v12
-:=-127
:.<0.50,
14
0000
24
I Y
39.647
19.9
6.8
<2.0
<0.100
<2.5
1
7.3
2.40
1,85
0.55
;-_ <050
16,
0000
1 24
Y : 39.2831
19.0
<2.0
<0.100
<2.5
6.9, 2.26
1,51
0.751_
17
0000,.-
`24
Y::
39.985
41.849I
19.5_-69"t2:0
'; <,0i100
-`<2.5-.-_'
1
65"126.
063
18
0000
24
Y
19.5
6.91
<2.0
<0.100
<2,51
6161_�.: 2.20
-- '..281
0.921
- 9
:A000. .-
-' 24'`i
Y
-40:139
-; 18.9
. 69
!.<2.0
_. <0.100
c' .<2 5
�8I
= _. '
1 7.2 -;-. 2.241
7.3. 2.47I
_. 1,50
-T"074
20
0000
24
I Y
38.474
18.9
---6.91
<2.0
<0.100
<2.5I
31
-- -•-77
0.70
1 N
:657
186�M16"9
,2A.'
<0100°<25;..:.
6
7�.:.'276
- - 2.00
;,f; 0.761 --
22
0000
24
41.395
17.5
6.9
<2.0
<0.100
<2.5
7A 2.121---
•_21'i
0.911
3:90-
- 1-
,{_x_
<2?0.
... <O.j00,
- :5,
:,�:'
7.0 :`'S 33
- 047
•3�ff86
'._. _:`=
_
24
0000 1
24 1
H
37.704
18.0
H
<2.0
<0.100
<2.5
HI
7.3 1,061
0.20
0.86 1
_
Q'.
�.4k?-;..
�-
,x--:..:.-
-+ 36`96'
m. .H
,-;
-.
i,.<0.100
�"-.. - -
._ H
_..-
771
-
26
0000
24
Y
44.271
18.6
6.9
<2.0
<0.100 '
<2.5
161
6. B 2.1 B
0.94
1.24 1.16
27
0:
s
�:
J3
_50!
<otDo__z2'
1zI
s:o,;�r;_i4a
a
a7o
28
0000
24
Y
41.367
17.6
6.8
<2.0
<0.100
<2.5
251
7,3
1-56
0.60
0.96:
`29
,. '.,
�4
,1_')- _;
"_.
1.•6
6;
= 2:0.
<01110
;_.
'?:. �_._
a.p
32.41
-._ `+ �5$#i-,0.871
30
0000
24
N
42.049
17.2
<2.0!
<0.1001
<2.5
1 7.1
2.12
1.28
0.84121,502.141
24
"' -
r
- 679
6J3
ey`�<2.0
<0:.,100
'<
. �.q
^ (}
6;75 ,
AVERAGE
40.570
- 4
18.9
0.0
0.005
0.0
4
7.0
2.06
1.38
0.67
1.67
)%!IUM. s•.
MINIMUM
36.967
16.9
6.8
<2.0
<0.100
<2.5
<1
6.5
0.18
0.18
<0.50.
0.91
TOTAL
1,257.656
121,502.14
Monthly Limit
601
1 619
5 / 10
214
30
200
51
Annual Mass Loading = 662,483
2
DEM Form MR-1 (01100)

^ Appendix 0 WkWiNt'End DMR Data
__'MES PERMIT NO _ NCO030759 DISCHARGE NO. 001 MONTH December_ YEAR 2012
^� FACILITY NAME SMITH CREEK WASTEWATER TREATMENT PLANT CLASS IV COUNTY WAKE
,., OPERATOR IN RESPONSIBLE CHARGE (ORC) WADE SHAW GRADE IV PHONE [phone]
CERTIFIED LABORATORIES (1) SMITH CREEK WWTP (2) NEUSE RIVER WWTP (3) MERITECH (4) PACE
CHECK IF ORC HAS CHANGED PERSON(S) COLLECTING SAMPLI Staff, names on file
^+ MAIL ORIGINAL AND ON3 PEN 7 EIVED
P-% NCDENR/ DWQ/ WQS
Th
ATTN.:CENTRAL FILES JAN 18,2013
�' 1617 MAIL SERVICE CENTER (SIGNATURE OF OPERATOR IN RESPONSIBLE CHARGE) DATE
^ RALEIGH, N.C. 27699-1617 CENTRAL FILES BY THIS SIGNATURE, I CERTIFY THAT THIS REPORT IS
DWQIWG ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE
^
50050
00010
00400
50060
00310
00610 00530
31616
00300
00665
00630
00625 00600
??
m
o
E
m cxi
>o
tU
<o
mN
O
ES
I"y
O c
TO
p
9
w
C
O
U
0O
Flow
~Q2
Ctn
ww
1
WU
F
S
n
J1L
j=
❑0
N�
WS
�U
=nU
0e
wN
<Z w
ZW �Uw
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2Ir 0a.W
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s
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vp�
J
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w
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py
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W
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en
ER PABMIEIER
CODE
ABOVE
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J
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INF
YW
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❑a4
Hrs
llrs YM/H
MGi) °C inNrts
µfA mfA
mgA
mg0
4/100m1
mfA
mg/I me/I mfA
mfA
Lbs/Mn'
Lbs/Yr
1
0630
7.3
1,364
7.3�
9.4
2
0715
_Y
4.8 Y
1.418'
_16
16
7.1
1
j
9.2
3
0630
9.5 Y
1.284
16
7.0
<2.0
<0_] 0
Q.5
<1.0
10:1
4
0630
_
9.5 Y
1.275
! 17
_
7.1
<2.0
1 <0.10
<2.5
<1.0
18.8
0.23
1.41
10.60
2.01
5
0630
9.5
Y
1.301
17
7.0
<2.0
<2.0
<0.10
<0.10
<2.5
----
<2.5
<1.0
9:8
6
0630
9.5
Y
-
1.304
17
7.1
_ -
-
<1.0
9.2
-_
7
0630
9.5.__
1.273
16
7.1
<2.0
<0.10
QS
<1.0 10.1
8
9
0645
0745
.B_
8.0 B
4._0_ B
1.364
1.369
! 17
17
7.1
.__
_
1 9.0
1
10 0630 9.5
Y
1.315
18 7.0
<2.0 <0.10
< .5
<1.0 - 8.5
--'
30 9.5
Y
1.300
18 7.0
4.1 <0.10
Q.5
<LO
8.9
0.45
1.46 0.67
2.13
1_ 0630 9.5 Y
1.414
___
17 7.1
<2.0
<0.10
<_.5
<L0
9.0
_-
!
13-..1 _-1-9.5___Y-,
14 0630 10.0 Y
1.390
1 '47
167.1--..._.
16 7.0
<2.0
<0.10
<2.5_<I.0
9.9
7
<2.0
<0.10 <2.5 <1.0 8.2 I
1
11
15 0700 8.0
B
8.0
16 0600 4.0
,1_347 _IS
B 1.447 16
.7.0
6.9
_._..._.__.._1_
8.4
9.9
18 0630 9.5
Y I.382 18 7.0 2.0 <0.10 <2.5 <1.0
8A 0.43 1.31 i<0.50I
1.31 - -
19
0630 9.5 _ Y_ 1353 17- - 7.1_ 1 Q.0 - <p.10 �2.5 ! 1.0 9.6
0630 9.5 Y 1.445 16 7.0 <2.0 <0.10 <2.5 <1.0 8.1
20
21
0615 9.1 B L402 16
7.2� QO <010 Q 5 <l 0 7.8
22 10615
. 8.0 N 1.396 15 7.1 8.4
23
0645_ 4.5 N__ 1.342_ 15 7.0_ --_
5.3 N 378 IS 7.0 H
8.5 !
24 I0625
H
_.-
H H 8.0
25 0615 16_ 7.0 H
26--' 0630 9.5 Y 1.842 16 7.1 - <2.0
H
H -1 H 8.5
0.30 <2.5 1.0 8.6 0.19 1.55 i 0.91
2.46
27 0630
9.5 Y 1.431 i 15 7.1 a.0
28 0630
9.5 Y 1.359 1 S 7.I <2.0
<0.10 <2.5 <I.0 8.9
29_ 0650
8.0 N �t.450 15 7.2
8.8
30 0650
4.0 N 1.441 ] 4 7. I 8.2
31 0635 9:0 Y _ 1.418 14
AVERAGE - - _- 1.375 16
7.0
- -'
<2.0_ 0.39_ Q.5<1.0 1 8.4
02 0.04 0.0 1.0 8.9 1 0.33 1.4310.55
1.98 1
t=4AxIbtUM ____ 1.842 _IS_1_7,3
4.I�2.5 i- _LO ]0.1 0.45
1.55
0.91 2.46
_ _______;
'MINIMUM 1.247 14 6.9
Q.0 <0.10 <2.5 <1.0 7.8 0.19 1.31 !<0.50� L31
TOTAL 42.640
G G
_ _ 704.12 10 744.441
C C C G G C G C C
_
'.ComD.iGrab
G
Mppfh]Y LIln11_ - . -
60-9.0
SO/7.3 , 30/4.0 W/45 ! 2W/4 .5.0 I 2.0/qa . IT� �
^ DEM Form MR-](12/93)
Adapted by the SCWWTP-OPSSQL

Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDES PERMIT NO. NCO038784
DISCHARGE NO. 001 MONTH December YEAR
2012
FACILITY NAME Neum River Village
CLASS II COUNTY Wake
CERTIFIED LABORATORY O) ENCO
CERTIFICATION NO. 591
(On additional laboratotles on the backsidmpage 2 of Nis form)
OPERATOR IN RESPONSIBLE
64
VV/�n������s.�
GRADE N CERTIRCATIONNO. 99080
PERSON(S) COLLECTING S�
da
ORC PHONE_919o25-2621
CHECK BOX IF ORC HAS CH
N
/y
V
Mail ORIGINAL and ONE COPY to: FEB 01
013
3
x f�4t% P..G�
ATTN: CENTRAL FILES
DIVISION OF WATER QUALTTENTRAL F
LES
(SIGNATURE OF OPERATOR IN RES ARGE)
DATE
1617 MAIL SERVICE CENTER
DWQ'
6
BY THIS SIGNATURE, I CERTIFY TTHIS REPORT/S
ACCURATE AND COMPLETE TO THE BESTOF MY KNOWLEDGE.
RALEIGH NC 27699-0617
50050
00010
00400
50060
00310
00610
00530
31616
OD300
00600
00665
00625
00630
1f11V.I
Thee 2400
mock
6
O
'.e
u
C
/B
EMuem
o.ar R.t.
(HON/ 11110
4e.Nent
.yawn
TemP
PH
Re.i4u.l
Calodn.
BOGS
20C
NH3-N
TSB
F.rl ma
rwm
Ipemetx
IIMN)
Dumye4
0x o
Total
NOmgen
E
m o
F i
a
TKN
Z
cf
J
1- E
g
J
H
HITS
HRS
V
MCA
C
UNITS[
I1GIL
I MG/L
MWI.
MG/L
I MIOOML
MGA.
MOIL
MOIL
'MOIL
MOIL
LBIMO
LB/YR
I
N
0.0146
2
N
0.0146
3
1210
1.001
Y
1 0.0151
12.3
7.091
16
4
1025
2.501
Y
1 0.0155
13.1
7.121
9
1 Q.0
<0.045
2.8
1 <1.0
1
13
3.5
2.0
11
5
1000
2.001
Y
1 0.0149
12.7
722
Q.0
0.052
1.6
<1.0
6
1310
1.001
Y
1 0.0120
Q.0
<0.045
2.4
<1.0
7
1150
1.001
Y
1 0.0146
8
N
0.0146
9
N
0.0146
10
1150
1.501
Y
1 0.0140
15.9
7.011
13
11
1120
1.001
Y
1 0.0137
15.7
7.041
15
1 Q.0
1 <0.045
1.2
<1.0
12
1005
1.251
Y
1 0.0133
12.7
7.04
Q.0
1 <0.045
<1.0
<1.0
13
1015
3.501
Y
1 0,0126
<2.0
1 <0.045
1.2
<1.0
14
1145
1.001
Y
1 0.0148
IS
I N
1 0.0146
16
1 N
1 0.0148
17
1140
1.001
Y
1 0.01351
13.6
6.92
18
18
1005
1.001
Y
1 0.0111
14.0
6.917
3
2.3
<0.045
<1.0
<1.0
19
1015
1.50
Y
1 0.0145
9.8
6.76
Q.0
<0.045
<1.0
<1.0
20
1100
1.501
Y
1 0.0102
3.0
<0.045
<1.0
<L0
21
1015
2,00
Y
0.0133
22
N
0.0133
23
N
0.0133
24
1030
2.00
Y
0.0128
10.4
7.14
11
Q.0
<0.045
4.4
<1.0
25
H
N
0.0128
26
1010
0.75
Y
0.0067
9.9
6.56
21
Q.0
<0.045
5.2
<1.0
27
1210
1.50
Y
0.0135
9.2
7.31
Q.0
<0.045
2.0
<1.0
28
1115
1.50
Y
0.0151
29
N
0.0151
30
N
0.0151
31
1045
1.25
Y
0.0153 6.6
6.74
2
AVERAGE
0.0137 12.0
12
0.442
0.004
1.73
1
gNNgNll
13.00
3.50
2
11
42.8042
1038.506
MAXIMUM
0.0155 15.9
7.3
21
3
0.052
5.2
<1
0
13.00
3.50
2
11
MINIMUM
0.0067 6.6
6.56
2
0.00
0.00
0
<1
0
13.00
3.5
2
11
Com .(C)/Gr.b(G)
G
G
G
C
C
C
G
G
C
C
C
C
Daily Limit
Monthly Limit
0.035
6-9
6-9
28
28
45.0
30.0
45.0
30.0
400
200
Monthly Flow 1 U.4L4u1

Appendix D - NEPDES FFLUEand NT MR Data
NPDES PERMIT NO. NC 0 0 V 0 d (o I'
DISCHARGE NO. 001 MONTH A life"bc YEAR 0 2
FACILITY NAME Cn i aA¢- -W.4� IW I+P L P CLASS -r COUNT TY 11)" iLi
OPERATOR IN RESPONSIB CHARGE (ORC) Cr ie 2c7 Ce• ra r. GRADE ✓. PHONE 42) -1) J c:
CERTIFIED LABORATORIES(1) C ( ¢ram• ;J=ri
CHECK BOX IF ORC HAS CHANGED 0 PERSON(S) COLLECTING SAMPLES C-u I "to 7 Ca ✓✓, f
Mail ORIGINAL and P^ Iv L)
ATTN: CENTRAL FILES
DIVISION OF WATER QUALITYAN 22 201
1617 MAIL SERVICE CENTER)
ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE
003101 W6101 00530 31616 00300. 00600 00665 OOE•o100""' 100�15 oob3�
FLOW �y W
�c•.N, N✓AME AND
UN
ITS NBELOW
ING m� oaao�NL0 F+ FmU dz<a°o
a
° N✓tVcu
L;.
❑ M"L
�7
10Io
Maalhl9 Limit LOdS 1 AN i'
DWQ Farm MR -I (01/00)
C
0 130.c �1:7 30A aou
q- I AJI I- I All,+ I All A

Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDES PERMIT N0._ NCO0406M DISCHARGE NO. 001 _ MONTH DECEMBER YEAR- 2012
FACILITY NAME,_ Barday Downs CLASS_ II COUNTY Wake
CERTIFIED LABORATORY (1) ENCO CERTIFICATION NO. NC 591
(lest additional laboratories on the backsidelpage 2 of this form)
OPERATOR IN RESPONSIBLE Andy Stevens GRADE_ II CERTIFICATION NO._993285__
PERSONS) COLLECTING SAMt;�� e ORC PHONE [phone]
CHECK BOX IF ORC HAS C N E D
Mail ORIGINAL and ONE COPY to: FCB O D 13 x
ATTN: CENTRAL FILES C�
DIVISION OF WATER QUALI (SIGNATURE
OF OPE TOR IN RESPONSIBLE CHARGE) DATE
1617 MAIL SERVICE CENTEIENTRA� II CC BY THIS SIGNATURE, I CERTIFY THAT THIS REPORT IS
RALEIGH NC 276994617
�'-- A1UtiUKA1 aArnU l-VmrLG G V . nc ow+ yr m a ...v.. ■+����-
50050
000lo
00400
50060
003101
00610
00530
31616
00300
1 00600
00665
1 00625
00630
F'
<
p
operator
arrival
Ti2400
me
clock
6
.. "
w
c
c
a
y
O
ce
O
Effftm t
Daily Raw
(FtaM Into
troatmerd
system
Temp
pH
Residual
cNorkm
BOD-
5 20C
NH3-N
TSS
Fecal
eomorm
(geometric
mean)
Dissolved
Omen
Total
Nitrogen
c
o t
H 1-
t
a.
TKN
?
m
z
or -
CM Cc c
v
Z ®
o
c o a
F E
CD Cc CD
Z'
00 -�
a m
9}
HRS
HRS
Y
MGD
C
KNITS
UCYL
I MGJL
MM
MG(L
V100ML
MGJL
MGA.
MGJL
MGJL
MGJL
UUMO
LWR
I
N
0.0112
2
N
0.0112
U
3
15451
0.75
Y
0.0082
11.0
7.03
6.11
4
830
I.00
Y
O.OD861
10.7
V
5
830
0.75
Y
0.0096
11.5
<2
0.25
2
1 <1
21.2
3.7
1.2
20
6
815
1.001
Y
0.01051
11.0
D
7
830
0.50
Y
0.0122
10.9
8
N
0.0122
1
9
N
0.0122
10
15451
1.00
B
0.0066
17.3
S
11
1600
0.50
Y
0.00451
16.9
12
900
1.00
Y
0.00731
13.2
6.8
1
4.12
13
830
1.00
Y
0.0066
12.2
<2
1.6
<1
14
830
0.75
Y
0.00831
9.2
N
15
N
0.0083
16
N
0.0083
F
17
830
1.00
Y
0.0076
9.4
18
8301
0.75
Y
0.0080
12.9
E
<2
0.21
1.6
<1
19
1015
1.00
' Y
'0.0070
1.1.6•
6.98
4.78
20
1315
0.501
Y
0.0012
11.9
C
21
900
0.501
Y
0.0083
11.7
22
1
N
0.0083
T
23 1
N
0.0083
24 1
1238
0.45
B
0.0086
12.5
I
25
H
0.0086
26
11101
0.45
B
0.0100
12.71
0
27
1015
0.50
B
0.0099
9.5 1
6.98
1<2
<1
<1
6.6)
28
1325
0.50
B
0.0069
10-51
N
29
N
0.0069
30
N
0.0069
31
1350
0.45
B
0.0065
10.7
AVERAGE
0.0083
11.9
0
0.23
1.3
1
5.41
21.20
3.70
1.2
20
45.7579
459.4366
MAXIMUM
0.0122
17.3
7.03
0
0.25
2
1
6.61
21.20
3.70
1.2
20
MINIMUM
0.001
9.2
6.8
0
0.21
0
1
4.12
20.00
3.7
1.2
20
Comp. (/ Grab G
G
G
G
C
C
C
G
G
C
C
C
C
Monthly Limit
0.035
6.9
28
30.0
130.0.
200
Total Monthly Flow
0.2588

Moak
Aus1
A,
A"►
AMEN
A,
ANWAk
A•1
Omsk
A,
A�
ANON
AMOS
A■�
A,
Aww�
Ams�
r"1
A,
Amb1
A ,
Auk,
Am
Amw�
Awl
Amb�
Amok
EFFLUENT
Appendix D - NPDES Permit and DMR Data
NPDES PERMIT NO. NC 0056278 DISCHARGE NO. 001 MONTH December YEAR_ 2012
FACILITY NAME RIVER MILL CONDOS CLASS II COUNTY WAKE
OPERATOR IN RESPONSIBLE CHARGE (ORC): William Lamm GRADE: IV PHONE [phone]
CERTIFIED LABORATORIES: ENVIRONMENL ENVIROLINK INC.
CHECK BOX IF ORC HAS CHAN E ��fF1
PERSON(S) COLLECTING SAMPLES William Lamm
Mail ORIGINAL and ONE fR c
ATTN: CENTRAL FILES x
DIV. OF WATER QUALITY JAN 31(SIGNATURE OF OPERATOR IN RESPONSIBLE CHARGE) DATE
1617 MAIL SERVICE CENTER BY THIS SIGNATURE, I CERTIFY THAT THIS REPORT IS
RALEIGM NC 27699-1617 CENTRALACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
r
E
o.
O
U
50050
1 00010
00400
1 50M
1 00310
00610
11
31616
00
0E06y65
00625
00z830
0
006Jzp0
00600
FLOW
EMU"
,x
O
4N10
Qz
W
g
�a
.29
�
pp
V
�w
0FO
�
G
zaWaW
w
z
�4
z
ul co)
j
az
j�c
tu j
y2O
z.��o
j
atr
�W
HRS
HRS
Y/N
MGD
° C
UNITS
UGL
MG/L
MG/L
MG/L
0/100ML
MG/L
MG/L
MG/L
MG/L
MG/L
LI M
LB"
1
N
0.003
2
N
0.003
3
11:30
2.00
y
F 3
11.
. 7
17.
7.
4
9:30
1.00
y
0.005
1.5
7.11
7.22
7.0T
Y
-71-3
<2.0
<2.5
<1
7.21
4.26
0.64
.
6
TU
I. W
y
2
.7
7.7
7
8:00
0.75
y
11.
8
N
. 03
N
10
11:50
1.00
Y
0.003
11.8
6.97
17.0
7.10
11
8:00
1.00
y
7.13
12
9:30
1.00
y
0.002
11.27.
<2.0
0.17
<2.5
<1
7.07
4.77
0. 4 1
13
9:25 1
1.00
y
2
1 .8
.98
7.1
14
9: 5
1.
y
11.0
.9
.07
15
N
0.004
16
N
0.004
17
11:35
0.75
y
0.004
11.6
6.9817.0
7.3
18
10:45
1. 5
y
11.
. 7
7.
l9
9:30
1.25
y
1
<2.0
<2.5
<1
7.05
0.27
6.42
20
9:30
0.75
Y
0.005
11.0
-1TV
7.01
7.09
21
9:40
1.00
y
T005
6.8 7
7.10
N
23
N
2
1.00
y
0.004
l
17.
7.21
25
Holiday
N
5
26
9:00
1.25
y
0.005
1 .7
.7
17.0
<2.0
<0.04
-<2.8
<1
7.07
.16
0.44
2.72
27
:00
1.
y
0.003
1 .
28
2:
y
-0.003
7.3
2
N
2
3T
N
0.002
•
Y
AVERAGE
0.004
11.0
6.95
16.2
0.0
0.09
0.00
l
7.22
4.72
0.41
0.46
4.26
MAXIMUM
0.008
12.7
7.13
17.0
<2.0
0.17
<2.8
<1
7.83
6.69
0.41
0.64
6.42
MINIMUM
0.002
9.5
6.71
10.0
<2.0
<0.04
<2.5
<1
7.05
3.16
0.41
0.27 1
2.72
Comp. (C)1Grab (G)
�10.020
G
G
G
G
G
G
G
G
C
C
C
C
Monthly Limit
679 1
50
30.0 1
1
30.0
200
TOTAL MONTHLY FLOW = 0.115
DEM Form MR-1 (12/93)

/ Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDESPERMITNO. NC0056391 DISCHARGE NO. Wl MONTH December YEAR 2012
FACILITY NAME Cross Cleek CLASS II COUNTY Wake
CERTIFIED LABORATORY (I)_ENCO CERTIFICATION NO._591
(list additional laboratories on 0e beeksidc"c 2 of this form)
OPERATOR IN RESPONSIBLE CHARGE (ORC) Van Gu� GRADE IV CERTIFICATION N No 995080
PERSON(5) COLLECTING SAMPLES- rll ORC PHONE [phone]
CHECK BOX IF ORC MS C
Mail ORIGINAL ®d ONE COPY m: I I a a -
AITN: CENTRAL FILES FEB 0 2013 x Cff/1
DIVISION OF WATER QUALITY (SIGNATURE OF OPERATOR IN RESP HIS CHARGE) DATE
RALEIGRT IS
R NC 27699-161617 MAIL SERVICE CEPT CENTRAL ILE ACCUURSere �n C MPLETETO THE BEST OF MY KNOWLEDGE.
G
i0050
W010
004001
50060
1 00316
1 00610
00530
31616
1 06300
00600
00665
1 00625
00638
m
e
nparax
amval
T6o1wol,
6
`e-
L S
8
O
v
w
c
V
00
emuem
omM I?N
ffM kso
eemmem
aynem
Temp
PH
R4aw
olsonne
B00.5
20c
NH1N
TSS
Flfl
coomnn
(seomnnc
mecp
Ixuave6
oxrpen
TOIaI
NBm en
0
fr
S
a.
9
p
TKN
o
Z
^
Z
a
m
v
m c,9
f E
o
D�
g m
F�
HRS
R$
HRS
Y/B/N
MGD
UG1
MGIL
MM
MCJL
NIWML
MCVL
MGIL
MG/L
MfYL
MG1
LBIMO
LBIYRN
0.0064U2
N0.00643
1050
1.00
Y
0.0051
*16.2
V4
935
1.00
Y
0.0054
2.8
0.080
4.8
<1.0
12.2
6.3
2.5
9.7
5
920
1.00
Y
0.0057
D
6
1200
1.00
Y
1 0.0078
16.4
7.721
19.5
7
940
2.50
Y
0.0062
16.5
1
8
N
0.0062
9
N
1 0.0062
S
10
1045
1.00
Y
1 0.0048
18.6
11
935
1.50
Y
0.0066
18.4
1
<2,0
0.100
1.2
1 <1.0
9.6
10
1.8
8.2
12
900
1.00
Y
0.0090
172
13
935
1.00
Y
0.0066
15.9
7.32
N
14
1000
1.50
Y
0.0103
15.6
IS
1
N
0.0103
IF
16
1
N
0.0103
17
1010
1.50
Y
0.0075
16.8
E
IB
905
1.001
Y
0.0066
17.4
<2.0
0.046
2.8
<1.0
13.3
4.10
2.3
11
19
920
0.75
Y
0.0072
15.7
=±Ei
20
955
1.00
Y
0.0105
15.1
7.311
1
9.6
21
905
1.00
Y
0.0062
15.0
T
22
N I
0.0062
21
1
N 1
0.0062
1
24
930--0.7-5FY-1
0.0080
14.3
25
H
I
N
0.0080
H
O
26
910
LD0
Y
0.0246
15.0
<2.0
0.750
5.6
<1.0
1 16.4
2.4
14.00
27 1
930
1.751
Y
0.00961
13.4
7.13
N
8.4
28 1
950
1.501
Y
0.00741
132
29
N
0:0074
30
N
0.0074
31
915
1.50
Y
0.0098
12.8
AVERAGE
0.0079
15.9
1
0.35
0.244
3.6
1.00
9.28
12975
5.20
2.25
10.73
26.6092
409.602
MAXIMUM
0.0246
18.6
7.72
2.8
0.750
S6
i
9.6
14 4
630
2.50
14.00
MINIMUM
0.0048
ITS
7.13
0
0.046
1.2
1.00
8.4
10
4.10
1.80
8.20
Co. . (C) / Grob (G)
G
G
6-9
G
28
C
45.01
C
35.0
C
45.0
G
400
G
>5.0
C
C
C
C
Deily Limit /Nov -Msr
WOW Ilmit Nev-Mar
0.050
6-9
1
30.0 1
10.5
30.0
200 1
>5.0
Moranty FLOW I e8noal

Pr\
AMA
^1
Amok
^1
ANIN
AMEN
A-k
4Nak
Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDESPERMIT NO. NCO060577 DISCHARGE NO. 001 MONTH December YEAR 2012
FACILITY NAME Beachwood CLASS II COUNTY Wake
CERTIFIED LABORATORY (1) ENCO CERTIFICATION NO. NC 591
(list additional laboratories on the backside/paIn 2 of this I.)
OPERATOR IN RESPONSIBLE CHARGE (ORC)�_ _s. _/. Andy Stevens GRADE II CERTIFICATION NO._993265
C ECI OXOI O C1HAW-CE f.E�D ORC PIIONE_9I9fi25-2627
Mail ORIGINAL and ONE COPY to
ATM: CENTRAL FILES MAR 0 4 201 � f�" "
DIVISION OF WATER QUALITY (SIGNA 'OF OPE ATOR s"PONSIBLE CHARGE) DATE
1617 MAIL SERVICE CENTMNTRALFIL S BY THIS SIGNATURE. I CERTIFY THAT THIS REPORT IS
RALLJGH N1. A10YY-1e11 M,na,a.o.w.cnnu�.v..rw.ow...00w
....................�..-
50050
10110
00400
11161
00310
00610
00530
31616
00300
00600
0066-5
00625
00630
m
<
Openter
nm.
2a00
clack
C
..
C o
9
i5
O
O
".an1
Oath Ren
(Fia.) im.
treatment
ayalem
TB1^P
PH
Resoual
cniomine
BOD-5
20c
NH3-N
TSS
F.ral
OR..
(aeamelnc
mean)
D.oNe4
Oay9en
Total
Nitrogen
Q
9
12
g
a
TKN
z
y
2
g
�,g
z 5 $
c o
f E
1 20f
_ v
z m o
a s
f
HRS
HRS
YIBINI
MOD
c
UNITS
UG/L
MGA
MG/L
MOIL
I 0/100ML
MG/L
MG/L
I MG/I,
MOIL
MG/L
LBIMO
LBIYR
1
N
0.0033
H
2
945
L501
Y
0.0255
12.4
3
1000
0.751
Y
1 0.0075
10.3
U
n
0.26
1.2
<1
4
1515
0.751
Y
1 0.0235
10.0
6.61
1 10.56
5
N
0.0235
V
6
N
0.0235
7
1200
I.00
Y
0.0165
10.3
D
8
930
0.50
Y
0.0230
11.1
<2
3.9
<1
<1
47
4.3
5
42
9
1615
0.50
Y
0.0160
13.2
1
10
1600
0.50
Y
0.0195
117
7.45
10.90
11
1400
0.75
Y
0.0183
12.9
S
12
N
0.0183
13
N
0.0193
I
14
1D00
0.50
Y
0.0180
14.8
15
930
0.501
Y
1 0.0185
14.5
N
<2
5.5
<I
<I
16
1000
0.501
Y
1 0.0205
14.6
17
1015
0.50
Y
1 0.0325
13.9
6.59
F
9.31
18
1430
0.50
B
1 0.0192
13.3
19
N.
1 0.0192
4
E
20
N
0.0192
21
1000
1.00
Y
(L0190
12.9
C
22
1015
0.75
Y
0.0215
11.2
23
1430
0.50
Y
0.0140
10.0
7.031
T
1
9.19
24
910
0.50
Y
0.0185
10.3
<2
0.087
L2.
<I
47
4.2
2
45
25
930
0.75
Y
0.0213
9.8
I
26
N
0.0213
27
N
0.0213
O
28
1715
0.50
Y
0.0120
8.7
29
9151
0.501
Y
0.0225
9.4
N
11
30
1430
0.75
Y
0.0190
10.6
31
1240
0.501
Y
0.0205
13.3
2.1
0.59
4.4
<I
AYERAGF.
0.01918
11.8
0.42
2.067
136
1
9.99
47
4.25
3.50
43.5
233.111
233.1105
MAXIMUM
0.0325
14.8
7AS
2.1
5.5
4A
<1
109
47.00
d30
5.00
45
MINIMUM
0.0033
8.7
6.59
0.00
0.09
0.00
1
9.19
47.00
4.2
2.00
42
Comp. (C) I Grab (G)
G
G
G
C
C
C
G
G
C
C
C
C
DaibLimit/Nav-Mn
aionmly Limit
0.10
fi-9
6-9
28
225
15.0
10
2.0
45
30.0
400
200
N.0
�6.0
Total Monthly Flow
1 0.5947
'00%

Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDES PERMIT NO. NC0060577
DISCHARGENO_001_ MONTHDebetnber YEAR_2012
FACILITY NAME_ Beanhxuod
CLASS 11 COUNTY Wake
CERTIFIED LABORATORY (U_ ENCO
CERTIFICATION NO. NC 591
(list additional lebontorim on the barhide/Pase.2 ofthis font)
OPERATOR IN RESPONSIBLE CHARGE (Olt
Andy Stomns GRADE_ 11 CERTIFICATION NO.
_99321 __
PERSON(S) COLLECTING SAM �s
ORC PHONE_ 91M25-2627
CHECK BOX IF ORC HAS CH
D
ail ORIGINAL and ONE COPY to.
FEB O 1
CENTRAL FILES A
TTN:
DIVISION OF WATER QUALITY
(SIGNATURE OF OP R M RESPON )
DATE
1617 MAIL SERVICE CENTER CENTRAL
LES BY THIS SIGNATURE, I CERTIFY THAT THIS REPORT IS
RALEIGH. NC 27699-1617 nIAIn In
ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
<
nMl
Rme
2400
ekwk
a
•'• ^
o
a.
in
e
V
p(
O
$0050
Daily Raw
(FI.
betw) Imo
between
ern
eyNmm
HRS
HRS
YMN
MOD
1
N
1 0.0200
2
N
0.0200
3
1345
1.75
Y
0.0200
4
1400
2.00
Y
0.0150
5
930
0.75
Y
0.0210
6
945
0.75
Y
0.0165
7
915
0.25
Y
0.0200
8
N
0.0200
9
N
0.0206
10
1430
1.50
B
0.0195
Il
1315
1.75
Y
0.0170
12
1030
1.50
Y
0.0200
13
1400
0.75
Y
0.0189
14
1500
0.75
Y
0.0197
15
N
0.0197
16
N
0.0197
17
1100
0.75
Y
0.0190
18 1
1500
1.00
Y-
0.0185
19 1
1515
0.50
Y
0.0215
20
1400
0.751
Y
0.0155
21
1000
0.501
Y
0.0205
22
N
0.0205
23
1
N
0.0205
24
1010
0.451
B
0.0195
25
N
0.0195
26
1055
0.45
B
0.0240
27
935
0.50
B
0.0065
28
1245
0.45
B
0.0195
29
N
0.0195
30
N
0.0195
31
1145
0.45
B
0.0033
AVERAGE
0.01859
MAXIMUM 1
0.0241.
MINIMUM 1
0.0033
Co. (C) / Gnb (G)
Dail Limit/No,Mar
Moe Imit
0.10
TOLI MonMty Flow
0.57626
143
15.1
I:I
peon
a
�'
EE f s
PH
ReNdual
800.5
NN3-N
TSS
cN to.
met"ea
Oe
Total
°
TKN
Cabdane
20o
19 elc
Nitrogen
c
}
- c o
o 0
1
`o
z
rE
H>
<I.D
<1.0
200 1 >6.0
EPA
Will
MIN

Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDES PERMIT NO._ 1400064564 DISCHARGE NO._001__ MONTH_ December
FACILITY NAME Neese Cobra CLASS_ II COUNTY. Johnston
CER7IFlED LABORATORY (1)_ ENCO CERTIFICATION NO. NC 591
I th bmk. a c2ofthi3 form
YEAR_ 2012
(Ira a441bON1 e6arafIXlw00 a
OPERATOR IN RESPONSIBLE CH
PERSON(S) COLLECTING SAMP _
CHECK BOX IF ORC HAS CHANGED p
A 1TTN: CENTRAL ILESL ad ONE PY m. FED
DIVISION OF WATER QUALITY
1617 MAIL SERVICECENTER CENT
RALEIGH NC 27699-1617
GRADE_ Al CERTIFICATIONNO. 995080
O CPHONE _919-625-2621
v1
1 20113 � - 012 (2_ ��
SIGNATURE OF OPERATOR IN RESPONSIBLE C GE) DATE
L FILIS SIGNATURE, I CERTIFY TRAT THIS PORT IB
I1OMCCORATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE
SUMOI
00010
00400
50060
OMID
00610
00530
31616
00300
00600
00665
OW2S
00630
r
t
opvnmr
.Hint
Tknv2.aa
[Iwk
HRS
M
9'a
= o
>
o
HIM
y
a
N
Y/B
E"M
D.IIy Rat.
Ivlm.l Imo
im.lment
6 .m
MOD
Temp
c
pH'
UNM
R.aaml
cnmmine
UOIL
BED-
520e
MOIL
NH3-N
MOIL
TSS
MOIL
real
wfl i
mwn x4o
)
4/100ML
0wl .d
oumen
MOIL
Total
Nitrogen
MOIL
2
N t
o n
r- c
i
MOIL
c E
L n
m
ii
a
TKN
MOIL
i
m
@
z
MW.
g f@
2a
o
m ��
r E
LBIMO
f s
0,'m
z m S
3 m
1°-
LBttR
1
N
61622
U
2
N
0.1622
3
1 7051
1.501
Y
1 0.1864 13.9
V
4
1 7551
2.501
Y
10.1761 14.8
2.1
0.190
<1.0
<I.0
11.8
0.94
1.9
9.9
5
800
2.00
Y
0.1 009 15.9
D
6
750
4.501
Y
0.1671 15.4
7.06
7A
7
750
3.00
Y
0.1869 13.6
1
8
1 N
1 0.1969
9
N
0.1869
S
10
755
4.50
Y
0.1481 17.3
11
755
3.50
Y
0.1584 17.6
1
2.0
0.08
<1.0
<I.0
13.9
1.1
1.9
12
12
755
3.751
Y
10.1814 16.3
7.37
19.2
13
750
2.031
Y
10.1850 14.1
N
14
800
3.50
Y
0.1825 11.4
15
N
0.1825
F
16
1 N
10.1825
17
860
3.00
Y
0.1919 14.9
E
IS
755
1.50
Y
0.1909 16.0
1 2.0
1 <0.045
3.6
<1.0
13
0.78
3
10
19
750
1.50
Y
0.1687 13.9
C
20
740
3.00
Y
0,2010 13.1
6.78
7.3
21
$00
2.50
Y
0.1702 13.5
T
22
N
0.1702
23 1
N
0.1702
1
24
745
2.00
Y
0,1774 11.8
25
H
N
0.1774 H
O
26
750
6.001
Y
0.2571 13.6
27
755
3.00
Y
0.1636 I2.2
7.18
N
10.8
28
755
2.50
Y
0.1848 I1.I
27
1.0
15.3
I.1
11
4.3
29
N
0.1848
30
N
0.1849
J2.4.6751.7
31 800 2.00 Y
AVERAGE
0.2056 10.3
0.1811 14
0.3
13.5
0.98
1.059.05632./48
576016
MAXIMUM0.2571
17.6
737
2.7
153
1.10
MINIMUM
0.1481 103
6.78
0
1
7
4.9
0.78
19
4.3
Com C)/Gnb G
G
G
G
C
G
G
C
C
C
C
D.1 Ilmit/Nov-M.r
0.25
6-9
6.9
28
15.0
10.0
20.0
4.0
45.0
30.0
400
200
>6.0
>6.0
2.0
Manthl Limit Nov - Mar
Total Month[ Flow
5.6146

NPDES PERMIT NO.
FACILITY NAME
OPERATOR IN RESPONSIBLE CHARGE (ORC)
CHECK BOX IF ORC HM CHANGED [ I
Mall ORIGINAL AND ONE COPY to:
ATTN: CENTRAL FILES
Division of Wmer OuWity
1617 Mal Service Center
Rmeiph. NO 276f)B-1617
Appendix D - NPDES Permit and DMR Data
EFFLUENT
NCDOUT09
DISCHARGE NO,
JOHNSTON COUNTY WTP
CLASS 1
James DaW
GRADE 1 PhYlChem
(i)Envimnmentl (2)Lleriteoh
PERSONS) COLLECTING SAMPLES
RECEIVED
MONTH December Year2012
COUNTY Johnston
PHONE 919-SM-4745
JAN 2 8 2013 - - a 40/-3 P.
(SIG RE OF OPERATOR IN RESPONSIBLE CHARGE)
CENTRAL FILES THIS SIGNATURE, I CERTIFY THAT THIS REPORT -,
DWQIBOG IS ACCURATE AND COMPLETE
TO THE BEST OF MY KNOWLEDGE. ^,
�A
I\
�a
^I,
Ia
^A
/eat
r,
/\
Ii
^A

�. Appendix D - NETEEWEUTid DMR Data
NPDES PERMIT NO: NCO051322 DISCHARGE NO: 001
FACILITY NAME: ASHLEY HILLS
CERTIFIED LABORATORY: ENVIROMENT-ONE
(list odditionolb6omrosies on the bock ide/pogr2 of this form)
OPERATOR IN RESPONSIBLE CHARGE(ORC): WAYNE LEAKY/BRANDON
PERSON(S) COLLECTING cam^" E- !1RV�
` CHECK BOX IF ORC HAS C �E/
...� ATTMai: RIGINAL CENTRAL FILES
ONE COPY to:
ATFN: CENTRAL FILES FEB 08,2013
DIVISION OF WATER QUALITY (SIGNATURE OF OPE
MONTH: DECEMBER YEAR: 2012
CLASS: II COUNTY: WAKE
CERTIFICATION It: 10
GRADE: III CERTIFICATION NO: 988335
ORC PHONE: [phone]
NO FLOW / DISCHA"E FROM SITE ❑
1617 MAIL SERVICE CENTER CENTRALFILE BY THIS SIGNATURE, I CERTIFY CHAT THIS REPORT I51/
RALEIGH, NC 27699-1617 ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
a
5DO50
OD010
00400
rOO665
D0310
D0610
00530
31616
00300
00600
00665
00625 00630 1 00600 1 OG600
w
q Y
Ti
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0
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ENTER PARAMETER CODE ABOVE
NAME AND UNITS BELOW
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x
w w
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l9
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L7
�¢ O
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Ouv
HRS
HRS
Y/B/N
VIGO
O C
UNITS
QUA/AVG
MG L
MG L
MG/L
p/100ML
MG/L
MG/L
MG/L
MG/L
MG/L
LB/MO
LB/YR
1
0.112
2
0.112
3
0935
6
Y
1 0.135
17
7.1
1
7.3
4
0830
8
Y
0.098
17
7.0
4.9
5.94
< 2.5
< 1
7.1
6.62
1 0.10
6.08
0.54
5
0915
5
Y
0.102
18
7.0
2.3
0.33
< 2.5
< 1
7-5
6
0900
8
Y
0.203
17
< 2.0
0.30
42.5
< 1
7
1619
4
B
0.143
18
8
0.208
17
9
0.208
10
0850
8
Y
0.202
18
7.0
7.8
11
08301
7
Y
1 0.106
18
7.0
8.2
7.84
< 2.5
< 1
9.2
9.03
8.63
0.40
12
0830
5
Y
0.072
18
7.1
5.1
7.39
2.9
< 1
8.2
13
0830
6
Y
0.098
16
S.9
6.17
6.7
< 1
14
0900
6
Y
0.076
16
15
1000
1
Y
0.076
16
0900
6
Y
0.076
17
0830
8
Y
0.076
18
7.1
7.8
18
0900
8
Y
0.089
18
7.1
1 5.1
9.76
< 2.5
< 1
9.4
8.67
8.36
0.31
i9
1630
6
Y
0.089
18
7.1
< 2.0
7.85
1 3.3
< 1
9.0
201
09001
5
Y
0.095
16
< 2.0
6.86
< 2.5
< 1
21
1421
3
B 1
0.113
17
22
0.113
23
0.113
24
1145
1
B
0.113
16
25
H
0.113
26
1614
3
B
0.126
16
7.0
< 2.0
1.66
< 2.5
< 1
8.7
2.06
2.06
< 0.04
27
1610
3
B
0.100
17
7.1
1
2.6
0.33
< 2.5
50
8.9
28
1555
3
B
0.106
17
7.0
6.9
8.04
< 2.5
< 1
8.9
0.106
i31
0.106
1550
3
B
0.073
17
1
1
1
195.8
AVERAGE
0.115
17
0.15
3.4
1,21
1.1L20
8.2
6.60
0.10
6.28
0.31
195.8
389.0
MAXIMUM
0.208
18
7.1
0.23
8.2
9.76
6.7
9.4
9.03
0.10
8.63
0.54
195.8
818.5
MINIMUM
0.072
16
7.0
0.10
<2.0
0.30
<2.5
7.1
2.06
0.10
2.06
<0.04
195.8
49.2
Comp. (C)/ Grab (G)
G
G
G
C
C
C
G
C
C
C
C
CALC
CALC
Monthly Limit
0.25
N/A
>Sto<9
2 QUA.
10.0
8.7
30.0
> 5
N/A 11
qua.I
N/A I
N/A
I N/A I
N/A
Monthly Total 3.558
DWQ Form MR-1(11/04)

Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDES PERMIT NO. NCO062219 DISCHARGE NO. 001 MONTH December YEAR �2 12
FACILITY NAME KINGS GRANT CLASS 2 COUNTY WAKE
CERTIFIED LABORATORY (1) ENVIRONMENTI CERTIFICATION NO. 10
(list additional laboratories on the backside/page 2 of this fonn)
OPERATOR IN RESPONSIBLE CHARGE (ORC) Dave Rvniak GRADE 2 Certification A 1E+06
PERSONS) COLLECTING WJ SET& k- ORC PHONE 8W I DISC2383
HARGE
CHECK BOX ff ORC HAS iq�I ,��.•rr NO ILOW /DISCHARGE FROM SITE.
Mail ORIGINAL and ONE CPS8110 8 201 ) /-/s-is
ATTN: CENTRAL FILES
DIVISION OF WATER QUALFI y L� 1 (SIGNATURE OF OPERA R IN RESPONSIBLE CHARGE) DAZE
1617 MAIL SERVICE CENTER �+ENTRALFIL S BY THIS SIGNATURE, I CERTIFY THAT THIS REPORT IS
RALEIGH NC 27699-1617 ACCURATEANDCOMPLETET'OTHF. BESTOFMY KNOWLEDGE.
50050
00010
00400
00600
00310
00610
00530
31616
00300
00600
00665
00625 DDS30 00600 TG-P3B
C
40
v
ti
O
a
n
0
c
O
V
O
FLOW
w
y
Mo
W
Q W
O zw
Oc
m�
a W
i0
f H
a
O
J p W
ODW.W
rtAw
to
e
.3 K i
WOS
LLD E
p
{.i O
=
W z
Ul
O}
D0
J W
OK
Fr
Z
W
C
6r
O�kMG/1-
ENTER PARAMETER CODE
ABOVE NAME AND UNITS
EFF III
INF❑
�W
Ix
H
Z 2
two
Qp
F
V 2
c
e it
O F
W
f
Q
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dz'iaR w.
URS
HNS
Y/B/N
MGD
C
-UNITS
LB/YR
MG/L
MG/L
MG/L
4/100ML
MG/L
MG&
MG/L
MGn-
IBIMO
1
545
1
Y
0.014
-
2
1715
0.014
3
I=
1.5
Y
O.009
16
4
900
LS
Y
0.011
16
<2
0.08
<2.5
Q
NAZI
3.54
28.2
5
1030
4.5
Y'
.0009
18
6
800
2
Y
oolo
16
7
93o
..3.
Y
0.013.
16
7.3
92
8
1105
1
0.013
9113001
0.013
10
1100
2
Y
0.008
19
11110551
1.
Y
0.011
19
4.4
3.18
.2.6
'13
14.11
-4.36
8.57
12
11151
1
Y
0.011
16
P
13
10301
1
Y
0.010.
15
8.0
9.4
14
1125
1.5
Y
0.012
16
IS
ID30
1.
Y
0.012
16
1248
0.012
17
f050
2
Y
Q011
17
18
930
2
V
0.012
17
8.4
2.1
5.14
<2.5
31
8.1
11.64
3.64
5.52
D.99
19
10301
2
1 Y
1 0.011
17
20
12301
2
1 V
I 0.01
15
21
1100
1
1 Y
1 0.012
15
22
0.012
23
0.012
F
24
10421
0.012
O
I Q
25
1
0.012
0
1'6
26
14601
1
Y
0.011
15
27
1050
l 2
Y
0.013
14
-
7.5
<2
<0.04
3.1
22
9.4
1 23,59
1.45
2710
281
1M0
I i
Y
0.012
14
29
0.012
301
1325
V
0.012
31
1215
1
Y
0.01
14
AVERAGE
0.011
16
896
1.6
2.10
0.8
T
19.69
3.59
3.12
14.47
56.8
P
MAXIMUM
0.014
18
8.4
4.40
5.14
3.1
29.43
3.64
6.52
28.20MINIMUM
0.008
14
7.3
<2
B09
12.511.64
3.54
1.15
0.99
C.P(Q1/Gnb(G)
G
G
CAL
C
C
C
C
C
C
CCALC
Monthy limit
0.070
NI.
6.019.0NL
26
20
30
NL
NL
NL
M.
NL
P
Tabl Flow
0.346
DWQ Form MR-1 (11/04)

Appendix D - NPE&E®rftand DMR Data
DES PERMIT NO. NCDO65706 DISCHARGE NO. 001 MONTH Dmemba YEAR 2012
FACILITYNAME_ COTTONWOOD CLASSY COUNTY WAk:E
Alsk OPERATOR IN RESPONSIBLE CHARGE (ORC): WMLIAM LAMM GRADE: IV PHONE 252-23. -4900
CERTIFIED LABO
E RATORIFS
CHECKBOXIFORC 'vft
PERSON(S) COLLECI'MG SAMPLES WMLIAM LAMM
Mall ORWINAL and NE COPY 10:
ATMCCLM LmrILS FEB 0 4.2013
x -�
�` �tV�
�.5 �,'�
DMOPWATERQUALM
(SIGNATURE OFOPERATOR IN RESPONSIBLE CHARGE)-
DATE
RAUIIC14NC3,66WIiiln'BEa
FILE
CEIVIVT
CENTRAL
Iu Nora . TMEa� P °u FL�D�
50030
00010
901W
I SW60
1 00310
1 W610
W530
1 31616
1 01000
100680_
1 00665
00625
00630
00600
00600
E
m
-
O
O
PLOW
p�si
Fu
i
BOJ
m�
OQ�C G
��
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�
GO
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I�.O
F
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.1C
6 S
o
ei 2
a
`
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C
HRS
on
NCD
C
UNITS
Ulm
am
N1
AIrJI.
wlM
A1CI1.
m"
N61L
am
aim
1 0
IJWR
Ius
N IN
0.0351
2
1
N
0.0351
3
7.45
2.00
Y
0.0351
11.0
7.02
1 17.0
1 725
4
15:00
I.W
Y
0.0329
11.0
7.01
7.16
5
8.05
3.W
Y
0.0331
11.0
7.87
21.0
3.6
0.09
<.5
<I
1 6.71
5.92
0.49
<020
5.92
6
7:40
125
Y
1 0.0325
10.8
6.81
6.90
7
8:05
1.00
Y
0.0348
11.0
6.99
7.15
8
N
0.0357
9
N
0.0357
10
935
0.75
Y
0.0357
11.1
7.06
14.0
1
721
11
735
1.50
Y
0.0360
IIA
&90
1
7.13
12
735
1.25
Y
0.0353
11.1
7-50
ITO
1 <20
Q.5
<I
731
13
935
1.00
Y
0.0347
10.9
7.59
7.42
14
12201
1.00
Y
0.0336
10.6
727
7.59
IS
I
N
0.0336
16
1
N
0.0336
17
920 1
1.00
Y
0.0336
113
7.03
17.0
728
18
12,201
125
Y 1
0.0222
113
7.18
731
I9
8:05
ISO
Y
0.0222
10.9 1
7.01
17.0
<.0
0.06
Q5
<I 1
739
0.40
<020
5.04
20
8:05
1.00
Y
0.0333
11.0
6.94
1
728
21
7:40
025
Y
0.0257
10.7
7.10
1
1
7.16
22
N
0.0345
23
N
0.0345
24
7:35
1.00
Y
0.0345
10.9
6.99 1
17.0
7.03
25
Holiday
N
0.0319
26
735
1.00
Y
0.0319
10.9
6.91 1
17.0
<.0
<.5
<I 1
7.28
27
735
125
Y
0.0374
10.7
6.94
-
7.18
28
I120
0.75
Y
0.0326
10.1
6.98
7.10
29
N
0.0300
30
N
0.0300
31
8:40
LW
Y
0.0300
9.7
6.98
17.0 1
1
7.59
50.19
405.78
AVERAGE
0.0329
10.87
7.09
14.5
0.9
0.08
0.0
1.0
722
5.92
0.45
0.00
5.48
MAXIMUM
0.0374
11.40
7.87
21.0
3.6
0.09
<.5
<I
7.59
5.92
0.49
<020
3.92
MINIMUM
0.0222
9.70
6.81
<10
QO
0.06
<.5
<1
6.71
5.92
0.40
<020
5.04
Comp (CyCnb (G)
G
G
G
C
C
C
G
G
C-
C
C
C
MonthunOt
0.0675
B-9
50.0
20.0
8.0
3&0
2W
>&O
20
Total Monthly Flow 1.0185
r
'^ DEN Fa MR -I (1293)
AI\
A-wk

Appendix D - NPDES Permit and DMR Data
EFFLUENT
(NOVEMBER 1 through MARCH 31)
NPDES PERMIT NO: NCO073318 DISCHARGE NO.: 001 MONTH: DECEMBER YEAR: 2012
FACILITY NAME: WHIPPOORWILL VALLEY WWTP CLASS: q_ COUNTY. -WAKE
OPERATOR IN RESPONSIBLE CHARGE: JOEL CLARKE GRADE: III PHONE: 919I662J0457
CERTIFIED LABORATORIES: (1) ENVIRONMENT 1 (2) CLARKE UTILITIES -FIELD PARAMETERS
Check box If orc has changed [ ] PERSON(S) COLLECT NG SAMPLES: JOEL CLARKE
MAIL ORIGINAL AND ONE COPY TO: ATT: CENTRAL FILES ��IIIX16�7
DIVISION OF WATER QUA �TUREO ) DAU
BY THIS Si I CERTIFY THAT THIS REPORT IS
1617 MAIL SERVICE CENTER FEB ® "IWAND COMPLETE TO THE BEST OF MY KNOWLEDGE.
RALEIGH, NC 27699-1617
^0 I!\ TD IAIA c11 rr%
65
#Omsk
Amok
�.,
tal
50
00310
00610
00530
31616
00300 00625 00630
00600
006

�t
MON
mwe
Amffi�
Aw■
A"n�
Amisk
Amh►
Pak
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AMIN
Am�
Awb�
OWN
pw�
An�
mw
,erg
MWN
Aw.
AND%
PON
Amk,
Amm�
!rl
Amos
Aw�
Appendix D - NPDES Permit and DMR Data
EFFLUENT
(NOVEMBER 1 through MARCH 31) COPY
NPDES PERMIT NO: NCO063746 DISCHARGE NO.: 001 MONTH: DECEMBER YEAR: 2012
FACILITY NAME: DEERCHASE WWTP CLASS: 11 COUNTY: WAKE
OPERATOR IN RESPONSIBLE CHARGE: JOEL CLARKE GRADE: JI PHONE: [phone]
CERTIFIED LABORATORIES: (1) ENVIRONMENT 1 (2) CLARKE UTILITIES -FIELD PARAMETERS
Check box if orc has changed [ ] PERSON(S) COLLEC NG SAMPLES: JOEL CLARKE
MAIL ORIGINAL AND ONE COPY TO:
DIVISION
CENTRAL FILES � � En
DiV1SION OF WATER QU IGr"rew
DATE
1617 MAIL SERVICE CENTER ��� 4 4 90 sY DO MMATUW. I CER7W TMT THIS REPORT M ACCMTE
RALEIGH, NC 276994617 ' �S M D COMPLETE TO THE SM of MY KNOWLEDW-
D
A
T
E
Opr.
Arrive
Time
2400
Clods
Opr•
Time
on
Site
oRc
on
Site
500
50060
00310
00610
00530
31616
00300
00625
00630
00600
00665
Flow
Temp.:pH
Res
C12
BODS
@
20C
NH3-N
T
S
S
Fecal
Calbrm
Geometric
Mean
Diuowd
OVAM
(DO)
m
Nltrm
Nmite
Total
N
Total
P
ctrordc
Twdaty
Test
ResultsR
Inf
Elf
u
m
m
m
/ 100 m
m
m
m
m
m
P/F
1
0.0232
2
0.0232
3
1002
3.0
Y
0.0216
16.5
4
1012
3.0
Y
0.0211
16.8
5
910
2.5
Y
0.0213
16.9
6
935
2.0
Y
0.0224
17.4
7.27
<2.0
0.26
<2.5
<1
5.42
1.28
7.03
8.31
1.31
7
1155
3.0
Y
0.0225
17.6
8
` 0.0225
9
` 0.0225
10
905
2.5
Y
0.0218
18.1
11
916
2.5
1 Y
0.0234
18.4
7.22
<2.0
0.34
<2.5
<1
.5.71
12
936
3.0
Y
0.0240
18.0
13
1250
3.0
Y
0.0223
18.0
14
1218
3.0
Y
* 0.0236
18.1
15
0.0236
16
0.0236
1711130
2.0
Y
0.0214
17.6
181
1045
2.5
Y
0.0224
17.5
19
900
2.5
Y
0.0224
17.6
20
922
3.0
Y
0.0241
17.6
7.18
<2.0
0.22
<2.5
<1
5.33
21
1158
4.0
Y
0.0240
17.1
22
` 0.0240
23
1330
1.5
Y
` 0.0241
17.4
241
H
0.0241
25
H
` 0.0241
26
850
3.0
Y
0.0250
17.5
27
845
2.5
Y
0.0254
17.1
7.17
<2.0
0.17
<2.5
<1
5.94
28
1206
3.0
Y
0.0235
17.5
291
0.0235
301
0.0235
311
919
3.0
Y
0.0239
17.0
TOTAL FLOW
0.7180
AVERAGE
0.0232
17.5
NA
<2.0
0.25
<2.5
0.00
: 5.60 .
1.28 •
7.03
8.31
1 1.31
NA
MAXIMUM
0.0254
18.4
7.27
NA
<2.0
0.34
<2.5
<1
5.94
1.28
7.03
8.31
1.31
NA
MINIMUM
0.0211
16.5
7.17
NA
<2.0
0.17
<2.5
<1
5.33
1.28
.7.03
-8.31
1.31
NA
COMP/GRAB
CONT.
GRAB
GRAB
GRABCOMP.
COMP.
COMP.
GRAB
GRAB
COMP.
COMP.
COMP.
COMP.
COMP.
DAILY LIMIT
NA
NA
NA
NA 143.6
35.0
45.0
400
>5.0
NA
'NA'.
NA
NA
P
QUARTERLY LIMIT
NA
NA
NA
NA
NA
NA
NA
NA
NA
_'NA'
NA
NA
NA
P/F
MONTHLY LIMIT
.0500
NA
>6 <9
17.0
29.0
12.0
30.0
200
->5.0
NA
NA
NA
NA
P
MONITORING FREQUENCY Cont.
DailyNA
Wkly
Wkly
Wkly
Wkly
Wkly
Mthly
Mthly
Mth
Mthly
am
FREQUENCY MET Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
YES
COMPLIANT YES I
NA
YES
YES I
YES
YES
YES
YES I
YES
YES
NA
NA
NA
YES
*averaged e-estimated by lab s-weekend h-hollday Monthly TN Mass Loading(lbs/mth)
DEM Form MR-1 12193 Annual TN Mass Load' Ib
49.8
202

Appendix D - EFFLUEINTand
DMR Data ^^
NPDES PERMIT NO. NCO064378 DISCHARGE NO. 001 MONTH October YEAR 2013
FACILITYNAME Willowbrook WWTP CLASS 11 COUNTY Wake
CERTIFIED LABORATORY (1) Environment 1 CERTIFICATION NO. 10
(list additional laboratories on the backside/page 2 of this form)
OPERATOR IN RESPONSIBLE CHARGE (ORC) Sleohen Harrell GRADE III CERTIFICATION NO. 25543 ^^
PERSON(S) COLLECTING SAMPLES Steve Harrell/Dave Rvniak ORC PHONE [phone]
CHECK BOX IF ORC HAS CHANGED NO FLOW / DISCHARGE FROM SITE
Mail ORIGINAL and ONE COPY to:
A'ITN: CENTRAL FILES x _ (, %/���-3
DIVISION OF WATER QUALITY (SIUNAI URZjVVPERXI OR IN RESPONSIBLE CHARGE) ATE
1617 MAIL SERVICE CENTER BY THIS SIGNATURE, I CERTIFY THAT THIS REPORT IS
RALEIGH, NC 27699-1617 ACCURATE AND COMPLETE- TO THE REST OF MY KNOWLEDGE.
50050
00010
00400AUG�
00310
00610
00530
31616
00300
00600
00625 00630 M600 TC-P3B
1w,
C.
A
E
F
ao
Y`pg
Pn
o.
o
E
F
d
n
O
«
d'
rn
C
U
G
FLOW
w
Nl
yqN
W W
aO
W
x
n
Oo
mN
= W
00
2K
fH
Q=
p
J D
rW
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1-N
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N
J K
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(O.5
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> W
J}O}
(/lX
o O
J W
HO
OK
ff
=
h
p
ta-�
ON
�O
d
ENTER PARAMETER CODE ABOVE
NAME AND UNITS BELOW
EFF
INF
Z
Y
f
y
LE `
Z 2
0
OI
O
1 2
U
C
O
U
�. W
J
a Q
O CC
IIRS
HRS
YHI/N
MGD
° C
UNITSMG/L
MG/L
MG/L
N/100ML
MG/L
MG/L
MWL
MCA,
MG/L
LB/M
1
1615
" 7,
0.012
22
6.2
9.35
4.2
200
-. ".
20.75
3.96`
L63
, 19.12
2
goo
3
c
0,01
22
3
925
':i
Y
0.012
23
<17
4
Mon
2
v
0.011
24
79
T30
- 5
1500
1
v
' 0.011-
6
n
0.011
7
830
1
v
0.01
25
<17
_
8
82o
2
c
0.012
22
46
0-10
<2.5
360
14.92
4.33
1.64
13,28
9
92o
2
0.014
22
10
1430
2
V
0.012
22
79
<17
T7
11
1400
2
y
0:01,.
>, 22.
121
loon
n
0,01
14
815
2
y
0.011
1 23
<17
15
915
, 3
'
0.01 -
22
--16
0.10.
63
1400
18.38
- -
2.18
-16.20
16
90o
2
y0.010
2'
17
850
,3
0.009
1 22
9.1
217
74 .
18
goo
2
0.011^_
_
19
600.1
y
0.011.
20
1510
n
0.011
21
900
2-
`:.0.011.
22
:17
22
12oo
2 1
y
0.008
21
15
0.06
9
350
17.27
1.87
15.40
23
941
.2 1
0.009
21
24
goo
3
v
0.01
19
89
<17
8
2$
I50o
.1...
- 6.01
19
26
730
1
v
0.010
15
_
27
12s6
B
0.01
28
goo
2
0.01
18
<17
<1
29
93o
2
0.013'
19
3.0
0.07
-.2.6
2034
122
19.12
30
1400
2
0.006
19
31
95o
3
0.010"
20'
<17
"-
74
`
AVERAGE
0.010
21
0.0
9.1
0.15
44
128.7
7.6
18.33
4.15
1.71
16.62
49.7
P
MAXIMUM
-0,014-
-25.0',-�
8.3 -
:.. 0.0
'16.0
0,35
.9.0.
,1400.0'
8'0
'20,75-''4:33.
2.1a
i:19.12
>
MINIMUM
0.006
15.0
7_9
0.0
3.9
0.06
0.00
0.00
7.3
14.92
3.96
1.22
13.28
C..p.(Q/Goe(G)
Momnq u�a
0.0311
G
NL
G
6-9
G
<17
G
15
G
10
G
30
G
200
G
>5
C
NL
G
NL
'C
NL
C
NL
-CAI.
NL
P
Total Flow 0.325
DWQ Fom MR -I (11/04) DEC 0 4 2013

ONVA
Ank
Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDES PERMIT NO. NCO064378 DISCHARGE NO. 001 MONTH September YEAR_2013
FACILITYNAME Wi110WbrookWWTP CLASS II COUNTY Wake
CERTIFIED LABORATORY (1) Environment 1 CERTIFICATION NO. 10
(list additional laboratories on the backside/page 2 of this form)
OPERATOR IN RESPONSIBLE CHARGE (ORC) Stephen Harrell
PERSON(S) COLLECTING SAMPLES Steve Harrell/Dave Rymak
CHECK BOX IF ORC HAS CHAKFB
D
Mail ORIGINAL and ONE COPATM: CENFILES
DIVISION OF WATER QUALITY of OG ���3 (SIUNNUMM OF OPERAIUJ
�
I6171N4ILSERVICE CENTER
GRADE ID CERTIFICATION NO. 25543
ORC PHONE [phone]
NO FLOW / DISCHARGE FROM SITE
BY TIM SIGNATURE, I CERTIFY THATTIHS REPORT IS
ACCURATE AND COMPLETE TO THE REST OF MY ENOWLRDGL
I INIT
50050
1 00010
00400
1 00310
1 00610
1 00530
31616
00300
00609
00665
00625 00630 QM6w
F
i x
U
S
6
€
F
=
O
i
E
C
O
p
FLOW
w
� w
(`�
C�W=
Ww
�p
i"
d
<S
O i2
WJ
KO
pV
Oc
m n
= W
I=
OO
f�
f=LL
<
0
J C
<Z
hW
OLL
ul
J 12
<O
ULL
W_!
0
p
j W
J
Q}�}
WX
D)O
�
J W
<5
FO
OK
~2
W
J rc
<O
Fd
Ow
FO
alEl PARAMETER CODE ABOVE
NAME AND UNITS BELOW
EFF
III'
Z
1--
2 2
C
m
1- Z.
7,W
Jr
<
C
O W
a•�nUs
URS
HRSI
Y/B/N
MGD
C
UN-M
UGn.
MG/L
MG/L
MG/L
011NW
MG/L
MGD.
MG/1,
MM
MG/L
LU/M
,I
WIN
.n
_0013:
.,...
_....,..
....
,.
..:,
.;;
..
..
2
1310
y
0.013
26
<17--
3
'85o
1,2'
Y
O.ot2
4
1(Nq
2
y
1 0.013
25
5
10W
-2
y
. 6G012
26_
<F1
- 39
0.71
<1S
' 290
10.6
6 71:"
192,
3:68
6
9-0
2
0.013-
7
t611
!'
_�_
n
0.01.3
S
1212
n
0.013
10
no
}
v
0.013
26
2.3
10.04
25
120
949
1 129
7,20
if
)IS
?
v
-.0:01
'26
S3.
<I7
57
12
955
3
v
0.01
26
]3
ma.2
v
_
'O.Of5
25
_
14
1615
n
0.01
15
112(1
0
16
imn
2
yO.OL'
21
<17
7
wU
2_
y
11;005
24
___
3:�
_
11_7
2S
IIB
77I
_.52
i.`75�
5.56
-__
-
IE
o008
_
2-1
-_
0:008
24
<fi
20
930
3
v
0019
24
7.8
8.6
21
610
n
22
n
4019
23
ve
3..
y
O071
2-3
<I7
24
85o
3
y
0.01
23
49
OJ
Hs
13.6
2.24
11.36
25
t000
'• 2
y
O.UII
21'.
...,
_
.::
26
935
3
0011
23
75
47
-�
7.5
_
27
9L
'.2
Y
0.01i -
2.1
28
ImaT2yl'
130
930
OAl2
22
311
AVERAGE_
R012
0ON
00
0.0
7.5
43
041
0 4.
:: 3.0}
-�
25
26.0
149.4
84
111.00
596
1.80
RZO
30.1
MAXIMUM
9.4: ' .
- ' 290.0.
8 7
-
11.60
`:6 7I
-
2.24 -
11.36
-
MINIMUM
0.005
22.0
7.5
QO
-
2.3
021
_ENO
G
30
11800
G-
200
7.5
731
520
129
5.56
Cora (C/.icah(G7:'J.
Moolhiy i:mil
0.030 1
.. G.
NI.
G
6-9
G:
<17
G
15
G
10
_ G
>5
(.. _
NI.
G
NL
C
NL
Cj
NI.
CAI,
Total Flow 1 1 0.3611
DWQ Fonn MR-] (11/04)

Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDFS PERMIT NO. _ NCGO65714 DISCHARGE NO. 001 _ MONTH October YEAR. 2013
FACILITY NAME Tndewinds CLASS__ II COUNTY Wake
CERTIFIED LABORATORY (I )_ENCO CERTIFICATION NO._591
llist additional laboratories an the backside/page 2 of This form)
OPERATOR IN RESPONSIBLE CHARGE (ORC)_ _ Otis Fields GRADE_ II CERTIFICATION NO. _I1537
PERSON(S) COLLECTING SAMPLES_ Otis Fields ORC PHONE_919fi53-6966
CHECK BOX IF ORC HAS CHANGED O s,9
ORIGINALMail COPY to:
CENTRAL FILES ATTTN:
DIVISION OF WATER QUALITY (SIGNATURE OF OPERATORINRESPONSIBLE CHARGE) DATE
1617 MAIL SERVICE CENTER BY THIS SIGNATURE, I CERTIFY THAT THIS REPORT IS
RALEIGH, NC 27699-1617 ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
50050
00010
00400
5DO60
00310
00610
00530
31616
00300
G0600
00665
00625
00630
<
O'r•ter
.RINI
2a00
pock
HRS
8
' 2
C O
C
HRS
•
usEmusm
O
O
IYIBINI
o.M R•I•
(jlp.4 NIO
k•a1meN
syMm
0
Temp
C
PH
UNff6
R•aklar
cniomin•
UG/L
BOD-5
20c
mm
NH3-
N
MG/L
TSS
MG/L
cdllann
(a•omwio
IMIn)
a/IOOML
WNe4
Oryaan
MOIL
Total
Nitrogen
MOIL
i
g
fo, a
0
R
MG/L
TKN
MOIL
�
z
ro
10
Z
MG/L
mq
T c
z V c
3 J
r E
LB/MO
mR
2 p
i 10
S m J
.2
LB/YR
1
1330
1.00
Y
0.0108
22.1
7.24
0
2
1000
0.50
Y
0.02116
21.9
6.77
U
<.0
0.23
4.4
<L0
0
3
14.5
0.50
Y
0.0107
1.3
0
4
915
1.00
Y
0.0129
21.9
V
0
5
N
0.0129
0
6
N
0.0129
D
0
7
1115
0.50
Y
0.0112
22.5
0
8
930
0.50
Y
1 0.0119
23.1
7.36
1
<.0
1.2
3.6
1 25
2.5
1 1.1
1 1.5
1
9
1115
0.50
Y
1 0.0127
22.3
0
10
1000
0.45
Y
1 0.0145
21.2
1 S
0
II
1030
2.00
Y
0.01661
21.6
1
0
12
N
0.0166
1
0
13
1 N
0.0166
1
0
14
1240
1.001
Y
0.0159
21-8
1 N
0
IS
1615
0.501
Y
0.0124
21.4
1
0
16
924
0.451
Y
0.0152
21.9
7.29
F
<.0
16.11
2.8
2
0
17
950
1.501
Y
0.0134
21.6
1
1
0
18
830
1.001
Y
0.01911
21.7
1 E
0
19
N
0.0181
0
20
N
0.0181
C
0
21
1030
1.001
Y
1 0.0079
Lb.5
1
0
22
920
0.451
Y
1 0.0096
19.7
7,541
T
<2.0
0.16
2.8
1 <1.0
2.17
1.1
0.87
1.3
23
1030
2.00
Y
0.00,47
18.3
1
1
0
24
1000
1.00
Y
0.0117
17.1
1
0
25
1330
LOD
Y
OD199
17.1
0
26
N
0.0199
O
0
27
N
0.0199
0
28
940
1.00
Y
0.0277
17.50
N
0
29
940
0.75
Y
0.0290
19.60
7.24
<.0
0.24
3.6
<1.0
0
30
1040
1.00
Y
0.0270
17.3
0
31
T 1035
-too
Y
0.0186
17.3
0
AVERAGE
0.016
23.1
0.00
039
3.44
2.1967
0M0#H#
2335
1.10
1.19
1.15
950132
3636
MAXIMUM
0.029
23.1
7.54
0.00
0.00
1.2
4.4
25
0
2.5
1.10
1.50
130
MINIMUM
0.0047
17.1
6.77
0.00
0.11
2.8
1
0
0
1.10
0.87
1.00
Comp.(q/Gnb(GI
C
G
C
C
C
C
G
G
C
C
C
Daily Limit /Apr -Oct
Monthly Limit
0.050
S9'
6.9
28
45.0
30.0
NIL
12.0
45.0
30.0
400
200
"
monnlry now I v r•I
RECEIVED
NOV 2 6 2013
WATEk uUALI I Y SECTION
INFORMATION PROCE9ING UNIT

Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDES PERMIT NO._ NCO065714 DISCHARGE NO _001 MONTH September YEAR_ 2013
FACILITY NAME_ Tradewinds CLASS II COUNTY Wake
CERTIFIED LABORATORY(1)_ENCO -CERTIFICATION NO_591
(list additional laboralodeson the backside/Page 2 of1his form)
OPERATOR IN RESPONSIBLE CHARGE (ORC)_ Otis Fields GRADE. II CERTIFICATION NO.-] 1537_
PERSON(S) COLLECTING SAMPLES_ Olis Fields ORC PHONE_919fi534966
CHECK BOX IF CHIC HAS CHANGED
Mail ORIGINALaod ONE COPY to:
ATTN: CENTRAL FILES
DIVISION OF WATER QUALITY 4ICTNATURE OF OPERATOR IN RESPONSIBLE CHARGE) DATE
1617 MAIL SERVICE CENTER IS SIGNATURE, I CERTIFY THATTHIS REPORT IS
RALEIGH. NC 27699-1617 ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
.sooSe
00010
00400
50060
00310
00610
00.U0
31616
00300
00600
00665
00625
00630
C
OPersmr
soini
Rms N09
clock
HRS
` _
°
e e
06
HRS
in
O
C
O
Y/BM
Erwam
Daily Rats
(Flom Into
raalmml
system
0
itM#R#
C
P H
UNITS
Beskkw
C6lotblse
UG/L
BOD-5
20,
MGA.
NH3-
N
MG/L
TSS
MGA.
Feu1
c F.°
(Isom..&
moan)
9/10UML
oi,a
Okygen
MGR.
Total
Nitrogen
MOIL
2�
t
r n
t
a
MGA.
TKN
MGA.
u
Z
MGA.
mn
0 m
c
o c
E
LBIMO
mc°S
m E
C
-
m
{- Y
LB/YR
1
N
0.0226
0
2
1
1
N 10.0226
H
U
3
1045
0.40
Y
0.0155
26.3
4
1238
1.00
Y
0.0150
25.1
V
V4.
5
935
1.00
Y
0.0175
25.5
7.22
<2.0
0.049
3.6
I
2.0
0.73
3.4
6
1140
1.00
Y
0.0189
25.3
D
7
N
0.0189
0
8
N
0.0189
1
0
9
1330
0.45
Y
0.0145
25.3
0
10
940
0.50
Y
0.0162
25.0
7.33
S
Q.0
0.20
5.2
<1.0
0
I I
845
0.45
Y
0.0 997
24.3
0
12
1045
1.50
Y
0.0174
25.6
I
0
13
1 1205
1.00
Y
0.0189
25.8
0
14
N
0.0189
N
0
15
N
0.0189
0
16
1515
0.75
Y
0.0013
24.6
F
0
17
950
0.45
Y
0.0179
23.9
7.17
<2.0
0.32
4.8
<1.0
8.4
4.6
1.7
6.7
18
12.15
1.00
Y
0.0175
22.6
E
0
19
1215
1.50
Y
0.0181
23.3
0
20
1100
1.50
Y
0.0214
23.1
C
0
21
N
0.0214
0
22
N
0.0214
T
0
23
905
0.50
Y
0.016I
22.9
0
24
1%
0.50
Y
0.0097
23.2
1
0
25
905
0.50
Y
0.0123
22.3
7.02
4.9
0.24
6
<1.0
0
26
1 1020
2.50
Y
0.0121
22.3
O
0
27
840
2.50
Y
0.0159
22.10
0
28
N
0.0159
N
0
29
N
0.0159
0
30
1045
0.50
Y
0.0207
21.5
0
31
AVERAGE
0.017
2G.3
1.23
0.2
4.9
1
0440
0
6.265
3.30
1.72
5.05
26.8586
42.6902
MAXIMUM
0.0226
26.3
7.33
0.00
4.90
032
6
1
0
8.4
4.60
1.70
6.70
MINIMUM
0.0013 21.5
7.02
0.00
0.0.5
3.6
1
0
0
2.00
0.73
3.40
Como.(C)/Gmb(G)
Dail Linlit/Ayr-Ocl
G
0.050
C
6-9
6-9
G
28
C
45.0
30.0
C
NL
12.0
C
45.0
30.0
G
400
200
C
C
C
C
Monthly Limit
Monthly Flow I U.0 W 1
R&CE x 6D
Nov 01 2013
information Process Unit
DW0/.,

Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDES PERMIT NO. NCO058505 DISCHARGE NO._001 MONTH OCTOBER Yl
FACILITY NAME Mallards Crossing CLASS II COUNTY Wake
CERTIFIED LABORATORY (1)_ENCO CERTIFICATION NO. 591
(list additional laboratories on the backsidelpage 2 of this form)
OPERATOR IN RESPONSIBLE CHARGE (ORC) Otis Fields GRADE II CERTIFICATION NO._11537
PERSON(S) COLLECTING SAMPLES_ Otis Fields ORC PHONE_919-653-6966
CHECK BOX IF ORC HAS CHANGED
Mail ORIGINAL and ONE COPY to: ze�
ATTN: CENTRAL FILES
DIVISION OF WATER QUALITY (I NATURE OF OPERATOR IN RESPONSIBLE CHARGE)
1617 MAIL SERVICE CENTER BY THIS SIGNATURE/ I CERTIFY THAT THIS REPORT IS
RALEIGH NC 27699-1617 ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
2013
DATE
<
G
:rival r
Ttme 2400
clock
HRS
{r
I! .o
u
O
HRS
inn
C
a
Y
50050
00010
00400
50060
00310
00610
00530
31616
00300
00600
00665
00625
00630
�y Rate
treatment
aystam
MGD
Terap
C
PH
UNITS
Residual
chtodne
UGIL
B00-5
�
MG/L
NH3-
N
MM
TSS
MC&
Foul toll
torn
Owneft
mean)
A/100ML
Dlasotved
Oxygen
MC&
Tot81
NitMen
MGIL
w
1n
z
ti
MUL
41
W fL
v
tl
MM.
N
MG/L
z
-
07
z
M&L
m iA
g
:- ti
0 �
o
!- E
LBIMO
q
C
i�
.a t a
m
F
LBlYR
1
950
3.00
Y
0.0725
21.1
1
0
2
1025
1.00
Y
0.0740
21.5
7.17
U
<2.0
0.23
5.2
<1.0
7.11
0
3
1330
0.75
Y
0.0310
21.9
0
4
1115
1.001
Y
0.0394
22.1
V
0
5
N
0.0394
0
6
N
0.0394
D
0
7
1205
1.00
Y
0.0395
22.7
0.00
8
1020
1.00
Y
0.0575
23.1
1
0
9
935
1.00
Y
0.05951
22.2
7.83
2.3
2.8
1.2
16
7.28
5.1
0.27 1
3.3
1.8
10
710
2.001
Y
0.0670
21.5
S
0
11
1245
2.001
Y
0.0319
21.5
0
12
N
0.0319
I
0
13
N
0.0319
0
14
1240
1.00
Y
0.0335
22.2
N
0
15
1600
0.75
Y
0.0220
22.8
0
16
1020
1.001
Y
0.02951
22.1
7.681
F
<2.0
0.075
2.4
<) .0
7.68
0
17
1205
0.50
Y
0.0285
22.6
0
18
923
1.00
Y
0.0343
21.4
E
0
19
N
0.0343
0
20
N
0.0343
C
0
21
1140
1.001
Y
0.02051
20.6
0
22
1020
1.00
Y
0.0285
19.3
7.77
T
<2.0
.04
1.6
2
7.28
1 6.71
0.39
0.41
6.3
23
1300
1.00
Y
0.0275
19.5
0
24
1105
3:00
Y
0.0240
16.3
1
0
25
1105
1.00
Y
0.0303
17.1
0
26
N
0.0303
O
0
27
N
0.0303
0
28
1020
1.00
Y
0.0335
17.5
N
0
29
1025
0.501
Y
0.03601
18.1
7.41
<2.0
0.57
1.2
<1.0
8.81
0
30
1 12401
1.001
Y
0.02901
18.2
0
31
1 11451
1.001
Y
0.03251
17.6
0
AVERAGE
0.0372
20.6
0.46
0.74
-2.32
2
7.63
5.905
0.33
0.56
1.855
4.05
56.8171
2258.31
MAXIMUM
0.074
23.1
7.831
2.3
2.8
5.2
16
8.81
6.71
0.39
3.3
6.3
MINIMUM
0.021
16.31
7.171
1 2.3
1 0.08
1.2
2
7.11
0
0.27
0.41
1.8
Comp. (C) / Grab G)
G
I G
I G
I C
I C
C
G
G
C
C
C
C
Daily Limit / A r-O
M
6-9
45.0
10.0
45.0
400
>5.0
Monthly Limit
0.100
6-9
25
30.0
2.0
30.0
200
>5.0
2.0
2.0
QTR
mununy rluw 1 1. 1JJ!
RECEIVE
NOV 262013
WATER UUHu I t SECTION
INFORMATIONPROCENNC IJNI-

Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDES PERMIT NO NC0058505
DISCHARGE NO _001- MONTH September
YEAR 2013
FACILITY NAME Mallards Crossing
CLASS II COUNTY Wake
CERTIFIED LABORATORY(1)_ENCO
CERTIFICATION NO._591
(list additianel lebonmrics on the baoksiddpage 2 orthis roml)
GRADE It CERTIFICATION NO.
11577
OPERATOR IN RESPONSIBLE CHARGE (ORC) Otis Fields
- -
PERSON(S)COLLECTING SAMPLES_ Otis Fields
ORC PHONE_919-653-6966
CHECK BOX IF ORC HAS CHANGED `^J
Mail ORIGINALaad ONE COPY ro:
ATFN: CENTRAL FILES
BOAAA
DATE
DIVISION OF WATER QUALITY
(SIGNATURE OF OPERATOR IN RESPONSIBLE CHARGE)
1617 MAIL SERVICE CENTER
BY THIS SIGNATURE. I CERTIFY THAT THIS REPORT IS
RALEIGH NC 27699-1617
ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
50050
00010
OO/W
50060
00310
00610
00530
71616
007W
0060D
00665
00625
006311
F
apemtar
nma xaaa
dock
HRS
E
c
C n
y
O
HRS
in
p
U
m
Y
Emaam
oauP Rat.
(Flw) Ma
immmem
Nem
MOD
Temp
C
pH
OU
UNITS
Realaaal
rw
UGIL
BOD-5
20o
mm
NH3
N
MM
TBS
Mm
FealeaN
I.W
(9eamMnc
a/I00ML
Om--
osy9en
I"I"
Total
NBrogen
MC✓L
E
o
MG'1.OIL
o
6
TKN
=
9
z
MCVL
m m
i a
Slval
r E
LB/MO
1111;186
LBMi
I
N
0.0376
0
2
H
N
0.0376
H
U
0
3
1400
0.50
Y
0.0300
26.1
0
4
1115
I.00
Y
0.0295
25.1
V
<2.0
<1.0
3.85
0.28
0.75
3.1
5
1025
1.00
Y
0.0385
26.2
7.86
7.39
0
6
1250
2.00
Y
0.0341
25.7
D
0
7
N
0.0341
T111.2
0
8
N
0.0341
I
0
9
1115
2.00
Y
0.0320
25.710
1045
1.00
Y
0.0320
25.7
S
0
II
750
1.00
Y
0.0440
26.1
7.68
<2.0
.5.
4.1
7.14
0
12
1315
1.00
Y
0.0380
26.1
1
0
13
1320
1.00
Y
0.0385
26.3
0
14
N
0.0385
N
0
IS
N
0.0385
0
16
1 1615
0.75
Y
0.0280
F
0
17
1105
1.00
Y
0.0305
24.8
0
18
940
1.00
Y
0.0330
22.2
7.05
E
<2.0
0.15
3.6
<I.0
7.11
16.1
0.60
I.I
i5
19
930
1.00
Y
0.0375
22.4
0
20
1210
1.00
Y
0.0376
23.5
C
0
21
N
0.0376
0
22
N
0.0376
T
0
23
930
0.50
Y
0.0390
23.4
0
24
1550
0.75
Y
0.0255
25. 1
I
0
25
10D0
1.00
Y
0.0340
21.7
7.78
<2.0
0.12
2.4
<I.0
7.29
0
26
910
1.00
Y
0.0310
21.5
O
0
27
1040
1.00
Y
0.0412
22.7
0
28
N
0.0412
N
0
29
N
0.0412
0
30
1600
0.75
Y
0.0320
22.6
0
31 1
AVERAGE
0.0355
244
1
1
0
2.1
1.423
T23
0
9.975W9.05
2201.5
MAXIMUM
0.044
26.3
7.86
0
%1
0.6
3.6
4.1
7.39
16.1MINIMUM
0.026
21.5
7.05
0
0.12
1.2
41
7.11
0Com.(C)(Grab(G)
Dail 1.3m011A r-Oct
G
G
6-9
G
C
45.0
C
1 10.0
C
45.0
G
400
G
15.0
C
Monlhl Limit
0.100
6-9
25
1 30.0
2.0
30.0
700
15.0
1 .0
2.0
QTR
menmry nrnr I
NoV 2p13
Information Pr
O �V4(p SM8 on,

Appendix D - NPDES Permit and DMR Data
EFFLUENT
jES PERMIT NO. NCO025453 DISCHARGE NO. 001 MONTH October
,CILITY NAME little Creek Water Redamatlon CLASS ly COUNTY Johnston
JPERATOR IN RESPONSIBLE CHARGE (ORC) Jaynes Warren GRADE IV PHONE 919-M-1536
AMIN
YEAR 2013 ,�►
CERTIFIED LABORATORIES (1) Pace analytical, Environment One (2)
CHECK BOX IFaRCHAsCHANGED PERSON(S) COLLECTING SAMPLES James Warren, Charles Harrell
Mail ORIGINAL and ONE COPY to: David Atkinson, Chris Allen
ATTN: InformaSan Processing Unit
Division W Water Quality X
DENR (SIGMA , RE OF ERATOR IN RESPONSIBLE CHARGE)
1617 Mail Service Center BY THI SI RE. I CERTIFY THAT THE REPORT IS
RALEIGH. NC 27699 ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE
h
PO1
Polk
D TE
r�
Q
�3
0.
C
O
n
O
5M
00010
004
50050
00310
00810
Do=
cow
31616
00300
00685
00500
100630
00=5
1 00340
00095
TG
-
e+
FLOW
>:V
~
oa
$
w
C
Q
yjj
zw
w0
o
aD:
p
O
o
Fa
log
�cC
Q
uzr
�
G
y
A
�III
~
tlPink
a�
r,
Z
z
o
v
pQ^�--''-
EFF
�W
Q 4
fs:
F{R8
HR8
Mae
MGD
•C
UNITS
UGfL
MG/L
L
MGIL
TOTAL
0100ML
MGIL
MG/L
I MGIL
MG/L
IMOIL
MG/L
us
TGP
_,.4.
0730
8
Y
1.387
22.8
7.74
< 2
0.04
< 2.6
5
7.78
1100
2
0730
0730
8
8
Y
Y
1.561
1.638
23.5
24.5
7.63
7.78
2.4
< 2
< 0.04
< 0.04
< 2.5
< 2.5
6
21
8.05
7.97
1235
1411
--
4
0730
8
Y
1.685
24
7.75
< 2
< 0.04
< 2.5
4
7.6
3.12
3.86
2.96
0.9
1464
�+
A0630
2
N
1.730
-
6
0730
2
N
1.689
PSMIN
0730
8
Y
1.606
25.9
7.45
< 2
0.08
2.7
5
7.48
1424
-
8
0730
8
Y
1.615
24
7.36
< 2
< 0.04
2.7
9
8.12
1318
9?
10
0730
0730
8
8
Y
Y
1.597
1.790
22.4
21.2
7.47
17.75
< 2
< 2
< 0.06
< 0.04
< 2.5
< 2.6
15
< 6000
8
8.21
1244
1305
_
-
0730
8
Y
1.910
22.3
17.88
< 2
< 0.04
< 2.5
< 4
7.98
0.96
3.98
2.84
1.14
13651
PSS+
12
1030
2
N
1.916
- -
M2; i
1130
2
N
1.723
14
0730
8
Y
1.541
23.1
7.72
< 2
0.09
< 2.5
< 4
7.81
1318
-
'
0730
8
Y
1.682
21.8
7.81
< 2
0.05
< 2.5
2
8.03
1247
16
0730
8
Y
1.693
23
7.86
2
< 0.04
< 2.5
7
8.09
1.08
4.66
3.54
1.12
1297
-- -.
0730
8
Y
1.705
22.1
7.61
< 2
< 0.04
< 2.5
S00
7.8
1332
18
Ab.
0730
0700
8
2
Y
N
1.679
1.535
22.8
7.7
< 2
< 0.04
< 2.5
21
7.93
1
1300
20
0800
2
N
1.643
...,
Ll:
0730
8
Y
1.468
22.1
7.89
2.3
< 0.04
< 2.5
51
8.18
1270,-
22
0730
8
Y
1.594
20.9
7.56
2.1
< 0.04
3.3
231
7.86
1266
13'
0730
8
Y
1.676
21.7
7.77
< 2
< 0.04
< 2.5
470
7.91
1
1273
24
0730
8
Y
1.458
19.4
7.82
< 2
< 0.04
2.6
< 4 1
8.39
0.59
5.1
3.91
1.19
1967
25-
0730
8
Y
1.598
18.2
7.55
< 2
0.07
< 2.5
< 4
8.25
1216
_
26
0800
2
N
1.544
1tt
0900
2
N
1.694
28
0730
8
Y
1.562
22.8
7.74
< 2
0.04
< 2.5
2
7.78
1100
-
29'
0730
8
Y
1.605
23.5
7.63
< 2
< 0.04
< 2.5
17
8.05
1235
AMIN
30
0730
8
Y
1.550
24.6
7.78
< 2
< 0.04
< 2.5
9
7.97
1411
37:
0730
8
Y
1.580
24
7.75
< 2
< 0.04
< 2.6
< 4
7.6
11464
AVERAGE
1.634
22.63
####
2.035
0.047
2.557
16
7.95
1.44
4.40
3.31
1.09
#1###
1298
•8,3$ .
3.12 -
. 51'-'
3:�1.....
MINIMUM
1.38697
18.2
7.36
2
0.04
2.5
2
7.48
0.59
3.86
2.84
1100
iCntttp {:a '0ii G)
a
�C.....
. �G :.
G
C
C ,
C
C
C
C
Month) Limit
2.5
28
5
1
30
200/10
6
Total Eff MG 50.6539 Total
OEM Form - i __ - 1A11 zR7.,,n .1nM1 cnn....n
Nitrogen Ibs
�1859
�_--
--..._,_.,___...--. ....-•----.- ---•-

Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDES PERMIT NO. NCO025453 DISCHARGE NO. 01 MONTH September YEAR 2013
FACILITY NAME Little Creek Water Reclamation CLASS j( COUNTY Johnston
Aw� OPERATOR IN RESPONSIBLE CHARGE (ORC) James Warten GRADE lV PHONE [phone]
CERTIFIED LABORATORIES (1) Pace analytical, Environment One (2)
CHECK BOX F ORC HM CHAMED PERSON(S) COLLECTING SAMPLES James Warren, Charles Harrell
fi"'N Mail ORIGINAL and ONE COPY to: David Atkinson, Chris Allen
ATTN: Inoo
Information Preseng Und
~ Division of Water Quartty x lT 0 ZZ
DENR (SIGNA REORE.
RATOR IN RESPONSIBLE CHARGE) DATE '
1617 Mad Service Center BY T 11 CERTIFY THAT THE REPORT !S
�� K2ALEtGH. NC 27699 ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE
50050 00010 1 00400 50050 1 00310 00610 1 00530 1 00500 31616 00300 00665 00800 00530 00625 00340 00095 TGP38
FLOW w c �. w z
MOWNF
EFF O o > a cd N m
C Fw az :� rzutu O 2 0 X � 0 �
INIT Q n o
ai'e v�� c� o° az i a
�► o a - 3 S r- ci
oog z as J0 J �' > °y ° o
� Im O H a C z V
FrRS HRS TWO MGD •C UttiTB lJr3/L MG/L MGIL MG/L TOTAL 9100ML MG/L MG/L MG/L MG/L IMWL MG/L uS TGP38
7.1 . 2k. _ .t�4 1.687 �rtl�t EO.25
2 8 N' 1.870Holt1.910 da2 •2.4 730 8 1.841 26.3 7.83t: < 2 < 2.5 25 7.04 116E
1.669
6 730 8 :'';' 1.680 26.1 7.85 + < N 2 0.05 < 2.5 2 7.34 0.16 3.41 2.55 ' 0.86 1126
ak
6 .2 N 1.569 5,,
1.740 .IM: 2.:5 <
7.Z4
:12
10 :' .,. ` 8 f. liF_ ;; 1.271 26.5 7.9 3 0.05 ; 2.5 < 1 7.3 0.27 3.36 2.06 1.3 27 1208
1.46E = ;�8t'
12 '; $ 81 ; S
"• Y 1.216 27.7 7.83 d`; 2.2 < 0.04 �. 2.51 55 7.17 121E
1.359
14 930 2 1.615
! • . � ` � � (i4y' : S 2s 6:55 .
1t
1�t�2: •
N 1.640
16 8 1.471 26 7.86 l3: 6.1 < 0.04 < 2.5 28 7.34 0.72 2.11 1.13 0.98 1235
7. g p1 g EY, 742 :' : 7 83 t181, EO-07
< . 7-M.
25 18D 81.512 23.8 7.8 ' Kifl2l2.9 < 2.5 < 17.34138E
_' 1.395 ; .2` slr' ;tiller 3:1 < 25 ' 1 7$4 ..20 �,73t>t 8 1.459 23.9 7.84 .1 3.2 < 2.5 < 1 7.37 1407
i 1030 2, 1.764tTg
.
,...
O""" 22 �O 0; 2 N 2.490
Y 2.050 t><J 2 .. <- Q.r4 2.3 < 1i 7.38
24 T30; 8 Y 1.664 23.2 7.81 'KTi , < 2 0.06 < 2.5 < 1 7.68 1083
..., 1.738*27.72
. nT: 004 2 1 _ . 7.21
,3a•_' 8 +- - 1.676 #t/st 2.1 0.07 .4• 2.5 < 1 7.3 2.24 4.11 2.3E 1.79 1129
1.6702006.'11i3028 646 2 N 1.681' rtt�t.... 1.634,11130 38 8 Y 1.439 ttl < 2 .., < 0.04 < 2.5 6 8.05 1133
31'
... AVERAGE .. .i�#9• ... .. 25yk.[2ay5 ..�F.. '.#.: ### 2..675 ..0.154 .....2.595,,... ... 3 7.290.85 3._25 2.02 1.23 27 1203
.66� 27MA7IIUM. 6.1 390V70
11 ####
0 ..
MINIMUM 1.21591 .23 7.17 2 0.04 2.5 1 6.55 0.16 2.11 1.13 27 1083
tom �1 (1 :C:. C C C �. •• G e C
Monthly Umit 2.5 28 5 1 30 200/100 6
Total Elf MG 49.5238 Total Nitrogen Ibs 1341
ORn R• f 2/93 or�n � � .....n . e,�w � � -_n
Amm�
/Mwft�
Amb1

Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDES PERMIT NO. NCO029033 DISCHARGE No 001 MONTH October YEAR 2013
FACILITY NAME Nauss River Waste Water Treatment Plant CLASS IV COUNTY Wake
OPERATOR IN RESPONSIBLE CHARGE (ORC) John Gibson GRADE IV PHONE [phone]
CERTIFIED LABORATORIES (1) Nauss River WWTP Lab (2) Meritech
CHECK BOX IF ORC HAS CHANGED PERSON(S) COLLECTING SAMPLES: Plant Personnel; Names on File
ALand rEIV
AT IEED �� �
ATTN:CENTRAL FILES X /t
DIVISION OF WATER Qu1+ DM G 2013 (SIGNATURE OF OPERATOR IN RESPONSIBLE CHARGE) DATE
1617 MAIL SERVICE CENTER BY THIS SIGNATURE I CERTIFY THAT THIS REPORT IS
RALEIGH, NC 276 WATEROUALITY SECTION ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE
D
A
E
m-Ic
�
O0
N
50050
00010
00400
00310
00610
00530
31616
100300
00600
00630
00625
OM600
00665
FLOW
q
GU
m
Z
~F
o
U
Z
Cq
�Z
Z
c
EL
opO
n8x_
Rate
Hrs
Hire
Y/N1B/H
MGD
C
SU
MG/L
MG/L
MGIL
100ML
MG/L
MG/L
MG/L
MG/L
LBS/MO
MG/L
ME
2
0000
24
Y
41.547
24.7
7.1
<2.0
<0.100
<2.5
6
6.4
1.47
0.72
0.75
0.84
4
00
0000
24
39.421
25.4
6.9
<2.0
0.100
<2.51
3
6.3
4.81
3.87
0.94
B
W
6
O W
4
¢ 3-
6-6,
25.7
m
<2.0
<0.100
<2.5
6.3
3.90
2.80
1.10
0000
24
N
40.504
fgmmg
a
z
Y
o;9 ,
24.9
T2
<2.0
<0.100
<2.5
6
6.0
2.66
2.66
<0.50
0000
24
Y
38.951
6.9
<2.0
0.110
<2.5
9
6.1 6.23
6.10
1.13
10
0000
24
Y
40.251
23.4
12
45.125
24.11
6.9
<2.0
0,110
<2.5
6.2 5.78
4.66
1.1211
0000
24
N
38E574_�
48
14K6.3 5.15
4.03
5
1.12
14
0000
24
Y
44.234
24.3
7.0
<2.0
<0.100
<2.5
:rs
OS00
- 4 ,<
aM
9AM101AW97
- __.4.''
'A ,10.."
2j0
0 ..00
5215
9 6:2
2! 6.5 5.14
h , e s o,
_
61 6.2 3.46
6.2 2.68
---4.22
2.36
1.79
0.92
1.10
0.89
2.48
16
0000
1 24
Y
39.054
24.3
7.1
<2.01
<0.100
<2.5
9000
4
r _
t
6
._._
so'
z:o
oo
18
0000
1 24
Y
0.5911
24.21
7.0
<2.0
<0.100
<2.5
20
8.8841
23.81
0000
24
N
9UPOW4.
22
0000
24
B
.7871
22.7
%0
6.9
0
<2.0
<0.100
<2.5
2
6.4
1.49
0.61
0.88
24
5
26
28
0000
0000
0000
0
0000
24
24 1
4
24 1
B
N
Y 1
9.8971
7.9281
41.0381
22.4
22.2
22.3
7.0
7.0
7.01
<2.0
<2.0
<2.0
<0.100
<0.100
<0.100
<2.5
<2.5
<2.5
2
4
8.5
6.4
62
1,951
2.21
0.751
0.991
1.63
0.75
0.96
0.58
<0.50
I
30
cm
0000
24 1
Y 1
39.858
22.7
7.0
<2.0
<0.100
<2.5
<t
6.5
1.02
1.02
<0.50
33,69T 1.32
AVERAGE 1
39.981
23.8
0.1
0.025
0.0
4
6.3
3.28
2.45
0.81
1.28
MINIMU-F-3-1.0421
22.01
6.8
<2.0
<0.100
<2.5
<11
6.01
0.751
0,61
<0.50
0.45
TOTAL 11,239.4131
1
1
33.697.66
Monthly Limit
60
6/91
5 / 10
2/41
301
2001
5
*Annual Mass Loading = 682,483 2
DEM Form MR-1 (01/00)

Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDES PERMIT NO. NCO029033 DISCHARGE No 001 MONTH September YEAR 2013
FACILITY NAME Nauss River Waste Water Treatment Plant CLASS N COUNTY Wake
OPERATOR IN RESPONSIBLE CHARGE (ORC) John Gibson GRADE IV PHONE [phone]
CERTIFIED LABORATORIES (1) Neuse River WWTP Lab (2) Meritech -
CHECK BOX IF ORC HAS CHANGED PERSON(S) COLLECTING SAMPLES: Plant Personnel; Names on File
A
T
E
m a,
°. E
O6�F'
° e �`0-'
y E
OF'0
O m
0F0
50050
00010
00400
00310
00610
00530
31616
00300
00600
00830
00625
OM600
00665
FLOW
a 2
mM
F 0
a
i° U
Oo
03
z
2
z
m
N
~
€
Z
'��
O
a
° Q
FZ
0
N 2
0t°-
z rn
H
i° � 0
°S
0.
0.
Inff %
Daily
Rate
Hrs
Hrs
Y/N/B!H
MGD
C
SU
MG/L
MG/L
MG/L
#/100ML
MG/L
MG/L
MG/L
MG/L
LBS/MO
MG/L
.1
00W
24 ..
'� rN.
- '.39.754
,26:8:
�:_
is2.0
<0.100
...
-- <2 5
"""
..: Y:3,`F}
"-"
�.cRn'6
` -'
a$=,,1.31..
.:`-' 68
-
2
0000
24
H
58.389
26.1
H
<2.0
<0.100
<2.5
H
5.91
0.73
0.73
<0.50
3
0000 ,;
- 24
_ - Y
45.892
26.3
.: 6 9
; <2.0
0 120
-_ <2 5
::h33Ago",'e
-1. 21,
:T O30
WONO„may
4
0000
24
Y
43.602
26.3
7.0
<2.0
<0.100
<2.5
55
6.2
1.49
0.63
0.86
0.88
"5
0000
.24 -
- Y
'-':46:413
%26.$
' _" 7.0
-.?2.0
<0.10Q
."u-,<2_5
6
0000
24
Y
42,464
25.7
7.0
<2.0
<0.100
<2.5
7
6.4
1.69
0.94
0.75
7
, 0000 ii
24 -'
N
;.-44.669
26.5
.' 7.0
<2,0
<0.10D
M
_, '-
, ,D
;-1:90
... - o a
0'S.
- '-' --a
•' "
8
0000
24
N
41.673
26.5
<2.0
<0.100
<2.5
6.2
1.68
0.87
0.81
9
_0000.'
-.24
=B ,
'45:759
`26`.3
;7.1
':<2:0
0.1,1Q„
<25'
12U
` ";•148;a
0''
.-:54.;
10
0000
24
B
41.892
26.8
7.1
<2.0
<0.100
<2.5
510
6.2
1.39
0.89
0.50
19
"0000-
'. 24 .
-:�,6
=:42.998
26.0
7.2
.<2.0
501;00
ti<2.`,1-rz-Z•'1_�;
�.' _`+180.
:n+. .QB
' ..Q:92
`. ..
'�`'kNO
12
0000
24
Y
40.193
26.8
7.2;
<2.0�,
<0.100
<2.5
17
6.1
2.17
0.98
1.19
13
'0000;
:24--
' :,Y�-
-40:229
•26.7
-:'-; 7.1
<20.
4100
.<2'5'
! P $'
::
".- 2,,Qa'
_
_ -
_gag
14
0000
24
N
41.675
25.9
7 0
<2.0 � <0.100
<2.5
5.9
3.83
2.95
0.88
15
- 0000 .
'-24
-(N
38.779
- 25-6
.,
<2.0 0.100
<2.0
-1- 5
<2 5
;. <2
63
57
5.7
' 79
1.61
-
0.93
0:7,6
0.68
16
0000
24
Y
43.260
25.6
7.0
0.170
17.:;0-000
'
. 24
`1B
417126
, 25 6
,'=; 7.1fT0
: 0 100
18
0000
24
Y
39,377
25.3
7.2
<2.0
0A20
<2.51
<1
5.8
2.15
1.35
0.80
1.96
19;-0000.:
24
fY
:.42.357
.-.4.9e70
'<2:0
..
0710,'?225..,.53
- 12:A.
82`-
20
0000
24
Y
42.074
25.4
7.0
<2.0
<0.100
<2.5
32
5.7
3.34
2.14
1.20
21
Z000
24
M5>e`1n
Egn
�ga
,a<25
A,.`u,;8
&
L28'
&" 0
8:98,
'ME
22
0000
24
N
54,620
25.1
<2.0
<0.100
<2.5
6.2
1.33
0.69
0.64
23
. 0000 -
`.24
1 Y
I
24
0000
24 Y
a2.907
25.1
7.0
<2.0
<0.100
<2.5
2
6.1
1.10
0.49
0.61
26
0000 24 Y 43.405
25.2
7.0
<2.0
<0.100
<2.5
2
6.1
2.22
1.21
1.01
27
-:0000"24
I
Y L 41:91 9
49"
0
<20'
'"�b"
•""w13
's'`
'�-1 0,
094-
28
0000 1
24 '
N 39.255
24.8
'+24
6.9
- -
<2.0
.<2;0
<0.100
"- 0 bQ
<2.5
: <2 5+�
6.1
" .
- 2.33
,,,
1.18
,.:.: s'
1.15
i
..:..
•.
29
'. 0000,'-:.
24
24
N 40.986
Y 44.322
30
0060
24.6
7.1
<2.0
<0.100
<2.5
1
5.7
2.12
0.90
1.22
20,224.74
T1
0000
:;24
{
'
AVERAGE 1
43.227
25.8
0.0
0.028
0.0
14
6.0
1.87
1.06
0.81
1.43
-- A'XIM11 MM
_...
'58.389
_
MINIMUM 1
38.779
24.6
6.9
<2.0
<0.100
<2.5
<1
5.71
0.73
0.37
<0.50
0.88
TOTAL 11,296.807
20.224.74
Monthly Limit
60
6 / 9
5 / 10
2/4
30
200
51
Annual Mass Loading = 682.483
2
DEM Forth MR-1 (01100)

Appendix EMU%fit and DMR Data
NPDES PERMIT NO NCO030759 DISCHARGE NO. 001 MONTH October YEAR 2013 _
FACILITY NAME SMITH CREEK WASTEWATER TREATMENT PLANT CLASS IV COUNTY WAKE
OPERATOR IN RESPONSIBLE CHARGE (ORC) WADE SHAW GRADE IV PHONE [phone] l
CERTIFIED LABORATORIES (1) SMITH CREEK WWTP (2) NEUSE RIVER WWTP (3) MERITECH (4) PACE
CHECK IF ORC HAS CHANGED PERSON(S) COLLECTING SAMPLI Staff, names on file
MAIL ORIGINAL AND ONE COPY TO
NCDENR/ DWQ/ WQS
ATTN.:CENTRAL FILES
1617 MAIL SERVICE CENTER
RALEIGH, N.C. 27699-1617
x ' ✓ter J/ /.�-�3
(SIGNATURE OF OPERATOR IN RESPONSIBLE CHARGE) DATE
BY TIES SIGNATURE. I CERTIFY THAT THIS REPORT IS
ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE
50050
00010
00400
50060
00310
00610
00530
31616
00300
00665
00630
00625 00600
Flow
ENTER
PARAMETER
CODE
ABOVE
EFF
INF
U
W
Z
Cou)
cc9
J
c�zn
aac
o
E
w
>
QZ
W
o
�z
u�wcn<z
>
z'0
ozw
o
w-
OF-
~
�o
CzJ9 i
Q
=
�Z
0
HWo
OQo
-
_
Jt
wZ
Ea
OfA
-c
eo
O
�..�
J
ww
a
cooJ
Oo
ma�mO
2 t=
ar
t- co
0
�O
co
cow
Y C
z
cl6
MO
o a
oca
m
WU
w=
Q
�
UW
co
O
1-06<
z�J
z<OO
CD
a
z
2�
z
aw
Hrs
I Hrs
Y/NB
MGD
°C
sm
UNMa�'?+
µg/t
mgA
mgA
mgA
#/looml
mgA
mg/1
mg/l
mgA
mgALbs/Mo
Lbs/Yr
.al/.
a' :5?iT�."`
�:1:
rir •�
�'_ iic.i.!'`•P%'�?wV#7lp�'�
a
�l'
•PAW f!M
•�
2
0625
99.55
1.362
23
7.2
<2.0
<1.0
7.9
i j�,pr%!
C- L7j
dr
r
•'-03: rr.:.::..k.�
�Y
t`
f
� �7X'�:
-�.�
y,<2.5
'.Y _
?'X. 1si
.:e.rr:.i
i :1 r.
:�. i
2: �.:i
�,p.�tl -.
H :'t.• ..
't �.�
rw.
_
•i•y ��r: •5,
:i.t- i•
:a-✓.
4
0625
9.0
Y
1.337
24
7.2
7.9
"a•E
�i:4:i ��
K
E
6
0800
4.0
B
1.450
24
7.2
7.4
8
0625
9.0
Y
1.292
23
7.1
<0.10
7.9
1.41
6.36
0.90
7.26
.
Ri�fiG"
Y
`
.?
.
:xri;*z�
41
�. >
rf
•h rr
i,
.r =
10
0630
9.5
Y
1.483
21
7.1
<0.10
8.0
12
0800
4.0
B
1.4091
22
6.9
�
^y�UO �':�rS1.4iiY.'1
'1.1�
.ay
r ♦
,..Ll.:
..
"f 1
..
r :s
4`, -w
!.f..w
; .�:?
,`
..•' M•!i t'
•..oJr `
Z.':
.Sc.�
-
i
_L•ii{7.L
t%Ap
14
0625
9.4
Y
1.434
22
6.9
<2.0
<2.5
<1.0
7.9
`5 '
' 30..
9: :;,;
._, �g:-
`
r9c .•
:.,:car:
:1
.:$`.
16
0630
9.5
Y
1.341
22
7.1
<2.0
<2.5
<1.0
8.1
�22
;61X •:;:
18 10625
9.0
Y
1.362
7.1
8.2
20
0650
8.0
B
1.5721
22
7.0
8.1
22
0630
13.5
Y
1.368
20
7.2
<0.10
8.3
0.20
2.98
0.50
2.98
:,: a
77
24
0630 •
9.5
Y
1.410
20
7.1
<;0.1
25
S.a
;A:
-
j1� 2 �
• �9�:::
':l ,
' .::.: �•
17s .
t
:a
'+�a''i--+-•t�'
26
0650
4.8
N
1.445
18
6.8
.6
•27S
a
}
e. "
�: hi:iyl
G0
;n , 's:
�; _i•. r
s:*.i1'r►._
7:7_c,'
_ �::
>%,rT "
r,?
c`
28
0620
9.6
Y
1.377
19
<2.0
<2.5
<1.0
8.2
L..j
J _
`[R,
y6�..88
•_V+.�►
:•_�-
6 st
�`'
ri:?Ti' �_
•j^.�'�'�i.•
ice.
•�7`�.
��i•
'v"
30
0630
9.5 1
Y
1.3301
20
7.1.
<2.0
<2.5
<1.0
8.4
f ::
•�:-�. t
•
's�, • 3AVit.
K�a(�]
`�� �
i' a(
J
Crt
i� • t
•(:C
+l^�•..,t
�.
-.L•
.tti.4
!'I'
♦
\J-
r !
,�•.�Y:a•'4.tl..Df!
.t'1!-1.+�•'.1+
AVERAGE
1.363
21
0.0
0.01
0.0
1.0
8.0
0.43
3.61
0.60
4.21
1
l�'VN;:LLIriVJ�rl� �_ �•.�•♦� ��:.r'f".
�
F_
t+f�.•.-
' �
. � �
•
����rJ
r�.,•4_
0.741
18
6.6
<2.0
<2.5
<1.0
7.4
0.16
2.49
0.50
2.98
_<0.10
Com .!Grab
G
G
G
C
C
C
G
G
I C
G
C
C
calculnea
CilWatea
_
DEM Form MR-1(12/93) Adapted by the SCWWTP - OPSSQL

Amos
Appendix DEand DMR Data
,.�., NPDES PERMIT NO _ NCO030759 DISCHARGE NO. 001 MONTH September _ YEAR _ 2013
FACILITY NAME SMITH CREEK WASTEWATER TREATMENT PLANT CLASS IV COUNTY WAKE
OPERATOR 1N RESPONSIBLE CHARGE (ORC) WADE SHAW GRADE IV PHONE [phone]
CERTIFIED LABORATORIES (1) SMITH CREEK WWTP (2) NEUSE RIVER WWTP (3) MERITECH (4) PACE
CHECK IF ORC HAS CHANGED PERSON(S) COLLECTING SAMPLI Staff, names on file
Amok, MAIL ORIGINAL AND ONE COPY TO
NCDENR/ DWQ/ WQS of T � 4 201�
r"b► ATTN.:CENTRAL FILES ' X
1617 MAIL SERVICE CENTER OPERATOR IN RESPONSIBLE
'� RALEIGH. N.C. 27699-1617 A,ER�lsAI.�1YSEC�O� Al BY THIS SIGNATURE. I CERTIFY THAT THIS REPORT IS, DATE
l�4fowTso�pROc�ssiNc7uACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE
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Calculated
Calculated
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f`
0=4 0 '
*0 f7, ;'
,'xo a:o':
:. OrM
:` oq o '
s 'K
+za?r
DEM Form MRA(12/93) Adapted by the SCWWTP - OPSSQL

Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDES PERM IT NO_ N00035784 DISCHARGE NO _001_ MONTH OdWef YEAR_ 2013
FACILITY NAME_ Neu" River Village CLASS_ II COUNTY_ Wake
CERTIFIED LABORATORY (1)_ENCO CERTIFICATION NO._591
(lin additional lahmatorim on the becksidr/p8e 2 ofthis fmm)
OPERATOR IN RESPONSIBLE CHARGE(ORC) Van Gurley GRADE IV CERTIFICATION NO._99080
PERSON(S) COLLECfMES G SAMPLES Van Gurley ORC PHONE_919.625-2621
CHECK BOX IF ORC HAS CHANGED
Mail ORIGINAL CENTRAL
ONE COPY to:
ATTN:N: CCENTRAL FILES • III__-///___itiAff__-���CCC...fff��"--6-6611 eC/
DIVISION OF WATER QUALITY (SIGNATURE OF OPERATOR IN RESPO,!PBLE CHARGE) DATE
1617 MAIL SERVICE CENTER BY THIS SIGNATURE, I CERTIFY THATTHIS REPORT IS
RALEIGH, NC 276994617 ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE
50050
B0010
004W
SW60JMIOJ
0910
00530
31616
003M
00600
OV-65
W625
00630
<
Dquatw
M.1
Timm two
cbck
E
9 :
0 n
`n
C
C
�y PNe
(Flo Imo
lmnmem
system
Temp
PR
Resbwl
c lab -
800.5
p0
NN&N
TSS
Fawl toll
bnn
(ceammdc
nwnl
duolved
thypw
Total
14"en
Q
o
m
1'
TKN
2
u
@
Z
(? c
Z E o
`o
!S E
L m c
n
Z W o
e 2
F
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HRS
Y
MW
C
UNT5
UUIL
MILL
MGL
MGL
Wi00M1
MGIL
MG.
MC
MGM
MOR.
LBIMO
LBlYR
1
1320
2.00
Y
0.0159
9
t2.0
0.24
4.0
<1.0
2
1420
1.00
Y
0.0144
3
1200
0.50
B
0.0138
4
1040
0.75
Y
0.0154
5
N
0.0154
6
N
0.0154
7
1130
2.00
Y
0.0135
22.8
7.04
6
8
1005
1.00
Y
0.0153
1
Q.0
2.0
4.0
5.5
3.8
3.4
9
1045
2.00
Y
0.0118
10
1130
1.25
Y
1 0.0149
11
1115
0.75
Y
0.0160
12
1
N
0.0160
13
N
0.0160
14
1045
I.00
Y
0.0120
19.2
6.83
11
IS
1015
2.00
Y
0.0140
10
1 Q.0
0.048
1.2
<1.0
16
1130
1.00
Y
0.0127
17
900
1.50
Y
0.0155
18
1045
0.50
Y
0.0140
N
0.0140
It
20.0140
N
21
11001
2.001
Y
1 0.0163
15.4
6.87
20
22
11451
1.501
Y
I 0.0128
2
<2.0
0.088
<1.0
<I.0
23
8451
0.751
B
1 0.0119
24
11301
1.001
Y
1 0.0106
25
1100
1.00
Y
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26
N
0.0125
27
N
0.0125
28
1045
I.00
Y
0.0110
12.6
6.96
I3
29
1040
1.00
Y
0.0154
17
Q.0
.045
2.4
<1.0
30
915
0.75
Y
0.0169
31 1130 0.50 Y
AVERAGE
0.0138
0.0141
17.5
10
0.00
0.475
2.32
1
###R#4
7.20
550
3.8
3.4
24.36748
475.2567
MAXIMUM
0.0169
2L8
7.0
20
0
2
4
<1
0
7.20
550
3.8
3.4
MINIMUM
0.0106
12.6
6.93
1
0.00
0.00
1 0
<1
0
7.20
1 5.5
3.8
3.4
Com . C /Gnb(G)
G
G
IsC
C
C
G
G
C
C
C
C
Daily Omit
Monthly Limit
0.035
6-9
6-9
1 28
1
45.0
1 30.0
1
1
45.0
130.01200
400
Monthly Flow I U.43e11
RECEIVED
NOV 262013
WATER wuALiIY SECTION
INFORMATIONwrES£ING UNR

Appendix D - NPDES Permit and DMR Data
mat
pw1
Alt
AN%
000,
00VA
Am%
00%
tea.
EFFLUENT
NPDES PERMIT NO._ NCO038784
DISCHARGENO_WI_ MONTH_ September YEAR 2013
FACILITYNAME_ Neese River Village
CLASS_11 COUNTY_ Wake
CERTIFIED LABORATORY (I I_ENCO
CERTIFICATION NO._591
(Ii1 additional labmmmies on the backeidd W 2 ofthis form)
OPERATOR IN RESPONSIBLE CHARGE(ORC) Van Gtmay GRADE_ IV CERTIFICATIONNO
_99080__
PERSONS) COLLECTING SAMPLES_ Van Gudey
ORC PHONE_919fi25-2621
CHECK BOX IF ORC HAS CHANGED
Mail ORIGINAL and ONE COPY to
FILES
a
rNYa
ATTN: CENTRAL
DATE
DIVISION OF WATER QUALITY
(sjGNATTjRE
OF OPERATOR IN RESPONSIBLE CH
1617 MAIL SERVICE CENTER
BY THIS SIGNATURE, I CERTI FY THATT
RALEIGH, NC 27699-1617
ACCURATE AND COMPLETE TO TH E BEST OF M V KNOWLEDGE
00010
00400
50060
OR310
00610
00530
31616
00300
5600
00665
(;W25
woo
E
G
u
Ccock G
rZ..-
Tem
p H
ReMdu1
CNBIm
BOD-5
20t
NH3-N
TSS
Foul cote
lmm
(9alneVle
dm.Ned
0arpen
Tmal
NXrogenemvNZmaf400
=
o
TKN
e
m i c
>.maop
c
@ m o
HRS
HRS
V
MGD
C
UNDS
DO,
MGIL
MG&
MGA.
NIMML
MM
MGA,
MG,
MO,
MOIL
LBIMO
LONR
N
1 0.0240
2
HOLIDAY
N
0.0240
3
8301
1.25
B
0.0322
4
1700
0.50
B
0.0250
<2.0
0.95
2.0
<I.0
7
5.5
3.0
4
5
17151
0.251
B
1 OEM
3
6
8451
0.751
B
1 0.0235
21.9
6.62
5
7
1 N
1 0.0235
8
N
0.0235
9
1250
1.50
Y
0.0228
10
1100
1.25
Y
0.0202
3
Q.O
1.6
2.8
I
II
1045
2.25
Y
0.0219
24.1
6.89
16
12
1035
0.75
Y
0.0181
13
1100
1.25
Y
0.0218
14
N
0.0218
15
N
0.0218
16
1130
1.25
Y
0.0191
22.5
6.951
0
17
1200
IN
Y
0.0202
I
<2.0
I.1
2.0
1 <1.0
18
1300
2,501
Y
0.0176
19
850
1-751
Y
0.0248
20
1220
I.ODJ
Y
0.0176
21
N
0,0176
22
1 N
0.0176
23
1205
2.00
Y
O.GD961
20.7
6.94
24
24
1030
1.501
Y
0.OD67
8
<2.0
0,97
4.8
<1.0
25
1030
1.25
Y
0.0225
26
1115
1.50
Y
0.0151
27
1100
1.501
Y
0.0142
28
1
N
0.0142
29
N
0,0142
30
1230
2.00
Y
0.0142
18.4
6.98
4
31
AVERAGE
0.0194 21.5
7.1111
0.00
1.130
2.9
1
######
7.00
5.50
3
d
31.22162
450.8893
MAXIMUM
0.0322L 24.1
7.0
24
0
1.6
4.8
1
0
7.00
5.50
3
4
MINIMUM
0.0067 18.4
6.62
0
0.00
0.87
2
1
0
7.00
5.5
3
4
Com (C rGvb(G)
G
G
C
C
G
G
C
C
C
C
Daily Limit
0.035
6.9
28
28
�Zo
45.0
30.0
400thlL
200
ti
Monthly Flow I U.bBaul
�►-�_e�� QED
Nov 01 2013
informaltiOn Pr
Dv._,° _S#no Unn

fJ(, 0 0 40,1, kr,+ Y 5 '�N`7p L�
Ai+ _. OES Parm and1Data___--_�
CERTMIED LABORATORIES (1) ccc u (2) 6- C - t?,y D—
CHECK BOX IF ORC HAS CHANGED PERSONS) COLLECTING SAMPLES & 0 ,1• T Cl,,—
Mail ORIGINAL and ONE COPY to:
ATTN: CENTRAL FILES
DIVLSION OF WATER QUALITY
1617 MAIL SERVICE CENTER
RALEIGH NC 276W1617 ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
DWQ Form MR -I (ouoo)

Appendix D - NOPelntiLalllLpMR Data
NPDES PERMIT NO. NC O U y
0 2 L b
DISCHARGE NO.
Gy I MONTH ✓ YEAR 2 ! I3
FACILITY NAMEal
*0 Lf
CLASS —CO LAIC
OPERATOR IN RESPONkBLE CHARGE (ORC)
C-4, (c T (.
vz ti GRADES PHONE 4 ;) — 17 k i it
CERTIFIED LABORATOPT..E°(=)
PGce �r� �d7c e So ✓l w
TiL (2, Cd•L. kn trr�
CHECK BOX IF ORC HAS CHANGED
Q
PERSON(S) COLLECTING SAMPLES G-u 1 d + T C6 w —
Mail ORIGINAL and ONE COPY to:
ATTN: CENTRAL FILES
Jv
X /
✓�- O b
DIVISION OF WATER QUALITY
(SIGNATURE OFO
TOR IN RESPONSIBLE CHARGE) DA
1617 MAIL SERVICE CENTER
BY 7'H6 SIGNATURE, COtT@Y THAT THIS REPORT IS
RALEIGH, NC 27699-1617
ACCURATE AND
TO THE BEST OF MY KNOWLEDGE
A/0 k ; O0,<cr 0.,A--J2 T1 / 1 2/13 — cI /13/1>,

Ir1
Appendix D - NPDES Permit and DMR Data
EFFLUENT
-
Im,
NPDES PERMIT NO... NCOD40606
0C(, YEAR -
DISCHARGE NO._001 ___ . _-__ . MONTH _ .._ _ Wake
CLASS_ 11 COUNTY
2013
FACILITY NAME _ Barclay Dawns
ENCO
.
CERTIFICATION NONC 591
CERTIFIED LABORATORY (1) _ _,
(list additional laboratories on the backsidetpage 2 of this form)
GRADE II CERTIFICATION NO. 993285
OPERATOR IN RESPONSIBLE CHARGE (ORC)-__.. __ Andy Stevens
ORC PHONE [phone]
PERSON(S) COLLECTING SAMPLES_ Andy
Stevens
CHECK BOX IF ORC HAS CHANGED
L
Mail ORIGINAL and ONE COPY to:
ATTN: CENTRAL FILES
x
(SIGNATURE OF OPERATO N PONSIBL.E CHARGE)
DATE
DIVISION OF WATER QUALITY
BV THIS SIGNATURE, I C TIFY THAT THIS REPORT IS
CENTER
1617 MAIL SERVICE CENTER
MAIL
AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
1617
NC 2ICE
ACCURATE
50050 60010 00400
50060
00310 00610 00530 31616 00300 00600 00665 00625 00630
r
CD g W m
E
m S. « in Effluent
operator
'
Residual
Temp pH Chlodne
Fecal Z
BOD-5 NH3-N TSS °Q1do� Dissolved Total o a TKN
(geometric oxygen Nttrogen t- c 9
z -''� Z
3 c �
r- Daly Rate
O o O Into
20e
moan) z
aai
F
Time (Flow)
a
2400 fC6 a treatment
clock O system
UGIL
MG/L MG/L MG/L f!/100ML MG/L MG/L MG1L MGIi. MGn-
LB/MO �R
HRS HRS YB MGD
C UNITS
r^
1 1545 0.75 Y 0.0051
19.3
2 830 2.50 Y 0.0061
19.0
U
2 <1.0 2.92
�
3 830 1.50 Y 0.0075
19.4 6.89
2.1
4 1000 0.50 Y 0.0079
19.2
V
5 N 0.0079
6 N 0.(
D
`�`
7 1015 1.25 Y 0.0061
22.0
PENN
8 845 0.75 Y 0.0069 21.6
c1.0 17.8 6.6 2.8 15
1.3 410
9 1040 0.50 Y 0.0088
19.0
1400 1.00 Y 0.0072
19.2
12.2
2.89
11 930 1.00 Y 0.0079
18.6 6.98
�,12
N
13 N 1 0.0079
14 9001 1.00 Y 1 0.0096
19.0
N
15 8301 0.75 Y 0.0074
18.2
<1.0 <1.0
#Mai
16 930 0.75 Y 0.0089
18.4
F
<2.0
2.59
p 1
17 1545 0.50 Y 0.0077
20.3 6.99
18 1500 1.00 B 0.0079
20.8
E
19 N 0.0079
-
20 N 0.0079
C
21 1000 1.00 Y 0.0097
16.6
22 1345 1.25 Y 0.0069
16.3
T
23 1 9451 0.50 Y 0.0084
16.0
<2.0 1.2 <1.0 <1.0
_
24 845 1.25 Y 0.0103
15.3
1
3.47
25 14451MORN
0.50 Y 0.0089
19.0 6.92
26 N 0.0089
C
�'
27 N 0.0089
28 1625 0.50 B 1 0.0085
18.6
N
_
29 1630 0.50 Y 0.0083
18.4
30 830 0.50 Y 00093
31 900 0.50 Y 0.0095
15.9
17.0 6.72
<2.0 4.4 <1.0 3.32
2.8r1537.113
551.27.i3
AVERAGE 0.0081
18.6
0.86 1.250 2.08 1 3.04 17.80 6.60
1 3.47 17.80 6.60 2.81SMINIMUM
MAXIMUM 0.0103
22 6.98
2.2 1.30 4.4
15
2G91C 0
0.005
2
G
CC C G C CC
�
Comp. (C) / Grab (G)
0.035
G
6-9
G
28 30.0 200
Monthly Limit
. ..30.0
Amok
Total Months Flow 0.25
A"n�
RECEIVED
NOV 2 6' 2013
WATRIJUHuI Y SECTION
-
4NPR TR* p;?nrl=SP-ING UNIT
�+
ram+

Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDES PERMIT NO,_. NCO040606 DISCHARGE NO. 001 _ MONTH. September YEAR 2013
FACILITY NAMEBarclay Downs CLASS . _ II COUNTY Wake
CERTIFIED LABORATORY (I )_�____. ENCO CERTIFICATION NO. NC 591
gist additional laboratories on the backside/page 2 of this ronn) GRADE II CERTIFICATION NO. 993285
OPERATOR IN RESPONSIBLE CHARGE (ORC) Andy Stevens
PERSON(S) COLLECTING SAMPLES_ Andy Stevens ORC PHONE_ 919-625-2566
CHECK BOX IF ORC HAS CHANGED
Mail ORIGINAL and ONE COPY to: � OC 7-
ATTN: CENTRAL FILES X
3�
DIVISION OF WATER QUALITY (SIGNATURE OF PERATOR RUPlINSIBLE CHA DATE
1617 MAIL SERVICE CENTER BV THIS SIGNATURE, I CERTIFY THAT THIS REPORT 1S
"A T -t-7cnn 141-7 1 ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
50050
00010
00400
50060
00310
00610
00530
3161G
00300
00600
00665
00625
00630
w
F-
OOperator
arrival
Time 2400
clock
HRS
t
E
s.
g :,
C
°
C
HRS
8
in
O
C9
O
YMN
Effluent
Daily Rate
(Flow) into
treatment
system
MGD
Temp
p
C
P H
UNITS
Residuat
CMorine
UG/L
BOD-5
20C
MG/L
NH3-N
MG/L
TSS
MG/L I
Fecal
coliform
(geometric
moan)
4/100ML
Dissolved
Oxygen
MG/L
Total
Nitrogen
MG/L
a
B
c a,
►- 0
t
a
MG/L
TKN
MM
C
Z
o
,.
Z
MG/L
e) N
�' m m
Q 2
Z coo
J
0 0
1- E
LB/MO
N
01 CM
Z
J
p -
H
LB/YR
1
N
0.0090
2
N
0.0090
H
U
3
1200
1.25
Y
0.0086
26.0
4
1630
0.50
Y
0.0077
26.2
7.08
V
<2.0
1.3
6
<1.0
2.39
23.7
5.9
2.7
21
5
1645
0.50
Y
0.0057
26.8
6
1030
0.50
Y
0.0092
26.4
D
7
N
0.0092
8
N
0.0092
1
9
1030
115
Y
0.00921
23.7
10
830
2.00
Y
0.00891
23.9
S
I 1
845
1.251
Y
0.0097
23.3
1
2.7
2.4
<1.0
12
1600
0.50
Y
0.0057
23.6
1
I
13
945
0.75
Y
0.0081
24.0
6.34
2.74
14
N
0.0081
N
15
N
0.0081
16
845
1.00
Y
0.0090
23.7
F
17
1015
0.75
Y
0.0087
23.5
18
1015
0.751
Y
0.0106
20.2
E
<2.0
0.95
3.2
< 1.0
19
1630
0.50
Y
0.0061
21.4
6.7
2.57
20
1000
0.75
Y
0.0109
20.4
C
21
N
0.0109
22
N
0.0109
T
23
1600
1.001
Y
0.0051
21.9
24
1115
1.25
Y
0.0077
20.4
1
25
1600
0.75
B
0.00471
21.2
26
845
1.75
Y
0.0074
20.0
6.22
O
<2.0
2.4
<1.0
2.91
27
1 10001
0.50
Y
0.0079
20.3
28
1
1
N
0.0079
N
29
N
0.0079
30
830
1.00
Y
0.0090
18.9
31
AVERAGE
0.0083
22.8
0.68
1.125
3.5
1
2.65
23.70
5.90
2.7
21
49.4343
S14.1G23
MAXIMUM
0.0109
26.8
7.081
2.7
1.30
6
1
2.91
23.70
,i.90
2.7
21
MINIMUM
Comp. (C) / Grab (G)
0.005
18.9
6.22
0
0.95
2.4
1
2.39
21.00
5.9
2.7
21
G
G
G
C
C
C
G
G
C
C
C
C
Month) Limit
0.035
6-9
28
30.0
30.0
200
Total Monthly Flow
0.2501
��'1 r-
4 v m 1 Z013
JnfGrmatior) P
Uw(lQG L D Usk

Appendix D - NPDi'&f%it and DMR Data
NPDES PERMIT NO. NC 0056278 DISCHARGE NO. 001 MONTH October YEAR 2013
FACILITY NAME RIVER MILL CONDOS CLASS IT COUNTY WAKE
OPERATOR IN RESPONSIBLE CHARGE (Of William Lamm GRADE: TV PHONE [phone]
CERTIFIED LABORATORIES: VIR N - 1 IR L INC.
CHECK BOX IF ORC HAS CHANGED Lxj PERSON(S) COLLECTING SAWI : William Lamm
Mail ORIGINAL and ONE COPY to:
ATM. CENTRAL F= x ��
DIV. OF WATER QUALITY (SIGNATURE OF OPERATOR IN RESPONSIBLE CHARGE) DATE
1617 MAD. SERVICE CENTER BY THIS SIGNATURE. I CERTIFY THAT TRIS REPORT IS
RALDGH. KC 77p9.1617 ACCURATE A" COMPLETE TO THE BEST OF MY KNOWLEDGE.
1.
H
g
a0°
O
in
O
o
00010
1 00400
1 30060
1 00310
1 00610
1 00530
11 3 616
1 00300
1 00600
1 00665
1 W625
00630
00600
00600
FLOW
OILlOfT
cc
d
96
�.
a�
Cp
i�V
O
zv
EC
z
tea
0.W_5
Scc
„lac
0a
��
0N
�v
F
�
N
�o:
F
Oa
~O
d
Yz
ar1
; p
z�
aY
1? X
n
Y
o
c
14R5
R7
VINIMCD
t
UGL
MOIL
MGJI.
mm
61100ML
MG/L
MGJL
XWL
MGIL
MOIL
Lt11M
Lem
1
11:10
0.75
Y
20.7
7.18
17.0
Q.0
Q.5
1
7.102
9:55
1.00
Y
20.9
6.84
7.093
11:05
1.00
Y
21.4
6.29
17.0
7.13
DE
4
11:15
0.75
Y
0.001
21.7
1 6.60
1
7.17
5
N
0.001
'
I tm k,
Ulu.1 I '
6
N
0.001
INFO
MATT
r R0
7
11:55
0.75
Y
0.001
21.2
6.71
17.0
7.20
8
9:55
1.00
Y
0.001
20.3
6.47
7.38
9
9:55
1.001
Y
0.001
20.2
6.59
17.0
<2.0
0.34
<2.5
<1
7.35
5.34
0.94
0.94
4.4
10
9:55
LOD
Y
0.001
19.7
6.68
7.24
11
9:55
1.25
Y
0.002
19.0
6.70
7.36
12
N
0.002
13
N
0.002
14
10:40
1.00
Y
0.002
20.4
6.84
17.0
7.20
15
9:50
7.50
Y
0.002
19.8
6.97
7.23
16
9:35
0.75
Y
0.002
19.9
6.99
17.0
Q.0
<2.5
<1
7.19
17
9:55
1.00
Y
0.003
19.9
7.04
7.20
18
8:35
1.00
Y
0.002
20.4
7.08
7.34
19
N
0.002
20
N
0.002
21
10-51
1.00
Y
0.002
18.1 1
7.03
17.0
7.31
22
H0 25
1.00
Y
0.003
19.0
6.98
1
1
7.24
23
11:30
0.75 1
Y
0.003
19.7
•6.59
17.0
<2.0
1.05
<2.5
<1
7.24
24
7:00
0.75
Y
0.000
19.1
6.73
7.18
25
6:40
0.75
Y
0.001
18.9 1
6.77
7.09
26
N
0.002
27
1
N
0.002
28
11:35
0.75
Y
0.002
20.6
6.91
14.0
7.21
29
9:53
1.00
Y
0.002
20.0
6.87
7.25
30
9:05
1.00
Y
0.002
20.0
6.60
17.0
1
7.19
31
9:55
1.00
Y
0.003
19.9
6.59
<2.0 1
<2.5
<1
7.24
1
2.29
AVERAGE
0.002
20.0
6.78
16.7
0.0
0.70
0.00
1
7.22
5.34
0.94
0.94
4.40
MAXIMUM
0.003
21.7
7.19
17.0
<2.0
1.05
<2.5
1
7.38
5.34
0.84
0.94
4.40
MINIMUM
0.000
18.1
6.29
14.0
<2.0
0.34
<2.5
<1
7.09
5.34
0.84
0.94
4.40
Comp. Grab G
G
G I
G
G
G
G
G
G
C
C
C
C
Monthly l lrrdt
0.020
s e 1
so
30.0
30.0
200
TOTAL MONTHLY FLOW = 0.05t
JFD
? 013
�i"Gl?UN
..;FING UNIT
DEM Form MR•I (12l93)

Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDESPERMITNO. NCDDS6391
DISCHARGE NO, 001 MONTH October YEAR 2013
FACILITY NAME Cross Creek
CLASS II COUNTY Wake
CERTIFIED LABORATORY (1)_ENCO
CERTIFICATION NO._591
(lid additimml labotatoria on dm becksid0pagc 2 of this form)
OPERATOR IN RESPONSIBLE CHARGE(ORC) Van Gurley GRADE IV CERTIFICATION N No 995D80
PERSON(S) COLLECTING SAMPLES GavleY�
ORCPHONE 91 M252621
TVan
CHECK BOX IF CHIC HAS CHANGED u
Mail ORIGINAL and ONE COPY to:
f
ATTN: CENTRAL FILES
x
GlN1/ u J/ -
DIVISION OF WATER QUALITY
(SIG
ATURE OF OPERATOR IN REEF.PAWLE CHARGE) DATE
1617 MAIL SERVICE CENTER
BY THIS SIGNATURE, I CERTIP7THAT THIS REPORT 15
RALEIGH NC 27699-1617
ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
50050
00010
00400
50060
1 00310
OD610
DOW
31616
00300
00600
00665
ON25
OD630
IM-
e
u)pemmr
nMl
Thm N0a
clerk
E
e -
e
a
o
'n
G
u
K
G
Emwm
D.1D Ras
IF"Mo
saatmem
aYgem
TAP
0H
ReaB.N
cnwau
BOD-
20o
NH3-N
TSS
waro,m
(peommlc
meant
maoNee
0,,,M
Total
Ni
2
n
'
R
9
c
TKN
u
2
pup
£
z
o m
g� 5'
z t S
. m J
12 E
m
f
z c m
S J
F �'
HR$
HRS
V
MGDI
C
MINTS
UWL
MGn-
MGn,
MG&
0/IMML
MG&
MM
MGC
MGn-
MM
LBMO
LBIYR
I
1115
2.001
Y
1 0.0156
23.1
U
<2.0
0.12
3.6
1.0
2
950
2.00
1 Y
1 0.01681
22.5
3
1 12451
0.501
B
1 0.0132
25.0
1
V
4
1 9201
1,251
Y
1 0.01361
23.5
5
1
1
1 N
0.01361
1
D
6
1
1
1 N
0.0136
7
1 10151
LODI
Y
0.01861
24.3
I
8
1 9051
1.001
Y
0.0156
21.7
<2.0
1 0.38
2.0
<1.0
24,98
6.3
0.98
24
9
1 9451
0.751
Y
0.01711
23.3
1 S
10
1 8501
1.501
Y
0.01771
21.5
7.511
1
8.2
ll
1 9451
1.001
Y
0.01521
22.1
1 1
12
1
1
1 N
0.01521
1 0
13 1
1
1 N
0.01521
1 N
14 1
9451
1.001
Y
1 0.01501
22.5
15 1
9151
1.001
Y
1 0.01531
21.6
F
<2.0
1 0.070
1.2
<1.0
16 1
9451
1.751
Y
I O.OT561
22.9
7.20
1
1 7.8
17 1
10301
1.251
Y 1
0,01651
22.9
E
18 1
9401
1.001
Y 1
0,01621
22.2
19 1
1
1
N 1
0.01621
C
20 1
1
1
N 1
0.0162
21 1
9501
1.001
Y 1
0.01441
20.4
7
22 1
10151
1.501
Y 1
0.0150
20.8
<2.0
0.081
1.6
<1.0 1
29.4 1
6.4
1.4
28
23 1
13001
0.501
B 1
0.0147121.31
I
24 1
10001
1.501
Y 1
0.01321
19.1 1
7.30
7.8
25 1
9301
1.251
Y
0.01531
19.21
O
26 1
1
1
N 1
0.0153
27
N
0.01531
1
N
28
925
1.25
Y
0.01501
18.4
29
110001
0.50
Y
0.0150
18.5
<2.0
0,054
<1.0
<1.0
30
51
1.50
Y
0.0168
19.0
7.16
7.6
31
1025
1.00
Y
0.0138
21.7
AVERAGE
0.01S3
21.6
0.00
0.14
1.68
1
7.85
27.19
6.35 1
1.19
26.00
107.895
493.202
MAXIMUM
0.0186
25.0
7.51
0
0.380
3.6
1
8.2
29.4
6.40
1.40
28.00
MINIMUM
0.0132 18.4
7.16
0
0.054
0
1
7.6
24.98
6.30
0.98
24.00
Com (C)/Gn6(G)
Dai Limit/A rOa
Monthly limitA r-Oct
G
0.050
G
6-9
G
28
C
C
C
G
G
C
C
C
C
45.0
15.0
45.0
400
>5.0
6-9
130.01
200
>5.0
rrer new
RECEIVED
NOV 262013
WATER uUAu I Y SECTION
INFORMATION PROCESFING UNIT

Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDES PERMIT NO NCOON391 DISCHARGENO. WI MONTH SeDlember YEAR 2013
FACILITY NAME Gross Creek CLASS II COUNTY Wake
CERTIFIED LABORATORY (1) ENCO CERTIFICATION NO 591
Vol additional labormones on the backsidelpa0e 2 orlhis form)
OPERATOR IN RESPONSIBLE CHARGE(ORC) Van Gulley GRADE IV CERTIFICATION N No 995000
PERSON(S) COLLECTING SAMPLES TVan Galley ORCPHONE 91"252621
CHECK BOX I F ORC HAS CHANGED I__J
Mail ORIGINAL and ONE COPY In I/y/vL `Q '- a,
ATTN: CENTRAL FILES
DIVISION OFWATER QUALITY (SIONA' RE OF OPERATOR IN RESPONSI IA Ear DATE
1617 MAIL SERVICE CENTER BY THIS SIGNATURE, I CERTIFY T PORT IS
RALEIGH, NC 276994617 ACCURATE AND COMPLETETPAWBEST OF MY KNOWLEDGE
500.M1
000I0
Moal
50060
I 00310
1 00610
00530
31616
00300
00600
OD665
00625
00630
Time 2400
clock
HRS
6
O
HRS
u
ea
0
Y
aeammm
ryatam
MGD
I C
"Mil
RaaEwl
UM
BOD5
MG(L
NH3-N
I Mon.
TSSeameaR
MG4,
Faaal
marmngswlroa
N
WHWIML
on9.
MGL
TOLnI
o9
Nsr enTKNOpa200
MG&
npH
m
o
12
Mon.
MGIL
2
MGC
Ti,
LBMO
LB/yR
II
N
1 0.01771
1 U
2
HOLIDAY
I N
1 0.0177
H
3
1310
0.501
B
1 0.0159
28.3
V
4
1130
0.751
B
1 0.0171
27.5
7.83
Q.0
<0.045
1.2
IS
7.0
12.1
6.1
1.1
II
5
1400
0.501
B
1 0.0096
28.2
D
6
800
0.50
B
1 0.0170
27.6
7
N
0.0170
1
8
N
0.0170
9
1130
1.50
Y
0.0117
26.0
S
10
955
1.00
Y
0.0165
25.4
Q.0
<0.045
11
930
1.25
Y
0.0114
26.1
7.51
I
1
7.1
12
930
1.00
Y
0.0174
26.1
13
1000
1.00
Y
0.0159
27.0
N
14
N
0.0159
15
N
0.0159
F
16
1015
0.75
Y
0.0159
25.3
17
1015
1.001
Y
1 0.0165
25.7
E
2.0
0.083
1.2
<I.0
17.9I
5.9
0.91
17.0
18
1125
1.501
Y
1 0.0147
24.5
7.621
7.8
19
1100
1.251
Y
1 0.0162
25.6
C
20
1 1100
1.001
Y
1 0,02321
24.6
21
N
0.0232
T
22
N
0.0232
23
940
1.50
Y
0.0136
22.9
1
24
920
1.00
Y
0.0147
22.5
1 <2.0
0.13
2.8
<1.0
25
905
1.251
Y
1 0.0132
23.4
7.311
O
7.2
26
930
1.501
Y
1 0.0144
23.5
27
955
1.001
Y
0.0139
22.6
N
28
N
0.0139
29
N
0.0139
30
1020
2.00
Y
0.0156
23.3
T371
6.4
31
AVERAGE
0.0160
25.3
0.50
0.05
1.3
2
7.51
15.005
6.00
1.01
14.00
60.066
1 335.308
MAXIMUM
0.0232
23.3
7.83
2
0.130
2.8
15
8.4
17.91
6.10
I.10
17,00
MINIMUM
0.0096
22_5
7.31
0
0
0
1
7.04
12.1
$.90
0.9I
11.00
Cam .(C)I Gaab(G)
G
G
G
C
C
C
G
G
C
C
C
C
Daily Limil 1A r-Ocl
0.050
6-9
6-9
28
15.0
30.0
I5.0
3,0
45.0
linni
400
200
>5.0
>5.0
Monthly limit A r-Del
monmry rmw Ival
NOV 01 2013
information p
OWgrgft7Ang Unit

.-,
Am,
!^
A01
/►
^1
/,
401%
r^
Pap
Matt
nq
011ank
aa1
amok
,amok
dwlk
�aa\
ON%
Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDES PERMIT NO. NCO060577 DISCHARGE NO. 001 MONTH Gclober YEAR 2013
FACILITY NAME. Beachwood CLASS__ 11 COUNTY Wake
CERTIFIED LABORATORY(O__,. ENCO CERTIFICATION NO. NC 591
(lost additional laboratories on the backsidelpage 2 ofthis form)
OPERATOR IN RESPONSIBLE CHARGE(ORC)__ Andy Stevens GRADE_11 CERTIFICATION NO. 993285.
PERSONS) COLLECTING SAMPLES_ Andy St� ORC PHONE_ 919-625-2627
CHECK BOX IF ORC HAS CHANGED
Mail ORIGINAL and ONE COPY to:-
ATTN:CENTRAL FILES
DIVISION OF WATER QUALITY (SIGNATURE 07 OPERATIrR IN RESPONSIBLE CHARGE) DAT
1617 MAIL SERVICE CENTER BY THIS SIGNATURE, I CERTIFY THAT THIS REPORT IS
ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
50050
00010
00400
50060 100310
1
00610
C0530
31616
00300
00600
00665
00625
00630
m
C
Owmlor
.rdv.l
Time
Na0
clock
HRS
E
° .
2
! .o
G
HRS
M
C
C
O
Y
FJlluenl
Nit,R.te
(Flow) imo
V.aaneM
.y.tem
MGD
Temp
C
PH
UNITS
Waku.l
D m
UM
BOD-5
20o
MG/L
NHN 0-
MG/L
TSS
MG&
Fem
eNllram
waoo,.ft
)
a/IOOA
DiaoNed
N'..
MGIL ML
Total
Nitrogen
MGIL
e
�
? o
c
e-
MGIL
TKN
MG/L
z
WmW
L
Z
MG/L
mi
o o a
r E
LBIMO
�� c
u
O y
F
LBIYR
1
1400
1.50
Y
0.0145
22.7
2
1500
1.00
Y
0.0150
23.0
3
1615
0.75
Y
0.0130
22.0
7.15
U
<2.0
<0.045
<1.0
>2420
7.1
4
830
0.50
Y
0.0190
21.6
5
N
0.0190
1
V
6
N
0.0190
7
1200
1.50
Y
0.0160
22.7
D
8
1000
1.00
Y
0.0175
22.4
9
930
1.00
Y
0.0240
20.5
1
Q.0
0.075
1.6
<I.0
43.1
4.5
IA
42
10
1600
0.75
Y
0.0140
20.8
II
1045
0.75
Y
0.0168
20.5
7.52
S
9.3
12
N
0.0168
13
N
0.0168
1
14
1100
1.25
Y
0.0140
20.4
15
1015
1.00
Y
0.0190
19.5
N
16
1545
0.75
Y
0.0135
20.0
17
830
1.00
Y
0.0145
20.6
6.99
F
<2.0
<0.045
<1.0
<1.0
7.55
I8
1035
0.50
B
0.0185
20.3
19
N
0.0185
E
20
N
0.0185
21
1115
1.25
Y
0.0130
19.3
C
22
23
1315
1030
1.25
0.50
Y
Y
0.0050
0.0090
18.7
18.4
T
45
5.4
<0.26
45
24
1630
0.50
Y
0.0075
18.1
25
1215
1.00
Y
0.0070
16.3
6.82
1
#0.049fi�11.0
9.9126
N
0.007027N
r
00070
0
28
1115050
B
0.0090
17.229
11151.00
Y
O.OI05
16.9
N30
-
1030125
Y
0.0155
17.3
31 945 0.75 Y
AVERAGE
MAXIMUM
0.01751
0.01438
0.024
16.8
19A
23.0
6.031
7.52
0
0
0.034
0.075
0.56
1.6
<1
<1
9.6
8.68
9.91
44.05
45.00
4.95
5.40
1.10
1.10
43.5
45
163.813
2407.982
MINIMUM
Comp.(C)I Grab G)
Daily Limit/Nov-Mar
Manthly Limit
Total Monthly Flow
0.005
0.10
0.4459
163 6.03 0.00 0.00 0.00 <1 7.1 43.10 4.5 1.10 42
G C G C C f- G G C C C C
6-9 28 22.5 10 45 400 >6.0 .
6-9 15.0 2.0 30.0 200 >6.0
RECEIVED
NOV 262013
1WM7igPRM INGUNIT

Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDES PERMIT NO. NCU060577 DISCHARGE NO. 001 MONTH September YEAR 2013
FACILITY NAME Beachwood CLASS II COUNTY Wake
CERTIFIED LABORATORY (1) ENCO CERTIFICATION NO. NC 591
Bin additional laboratories on the baokside/pe8e 2 ofthis form)
OPERATOR IN RESPONSIBLE CHARGE (ORC) Andy Stevens GRADE II CERTIFICATION NO. W3285
PERSON(S)COLLECTING SAMPLES_ Andy Stevens ORC PHONE_919-625d6Y/
CHECK BOX IF ORC HAS CHANGED O �? n L
Moil ORIGINAL and ONE COPY m:Lv��,fJµ,.i )
ATTN: CENTRAL FILES 7 i"ej
DIVISION OF WATER QUALITY (SIONATUREOF OPERA y RINRESPONSIBLECHARCE)
1617 MAIL SERVICE CENTER BYTHISSICNATURE./CERTIFY THAT THIS REPORT IS
Dal Viral Nr 19694-1417 1 ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
SOO.SO
00010
OOd00
50060
00310
00610
00530
31616
003M0
DOW
00665
00625
00630
W
a
p
oP.rm«
B
a Y
P 2
E e
p
I HRS
m
O
0
Y
FAluem
DiN Raw
(Flw.•) Into
I2etowm
snsDm
MGD
Temp
c
vH
UNITS
ResiOaW
cNvn:e
UGh
B00.5
20c
MGO.
NH3-N
MG&
TSS
MGA.
Fein
swam+
m
(9mb ec
mewl
a/IOMML
DecNed
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Tole)
Nitrogenr
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n
t
a
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c
o
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z
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2 i0
z $
-a C J
LBIMO
° M
O
LB/YR
artMl
Tlrrw2400
eioeh
HRS
I
N
0.0225
2
N
0.0225
H
3
1345
0.50
Y
0.0185
26.5
U
4
1545
0.75
Y
0.0160
27.3
7.55
<2.0
<0.045
<1.0
<1.0
7.77
41
5.3
<0.26
41
5
1600
0.50
V
0.0180
27.5
6
1645
0.50
Y
0.0180
27.0
ro
7
N
0.0180
8
N
0.0180
9
1300
1.00
Y
0.0140
26.1
1
10
1100
0.75
Y
0.0185
26.4
11
1030
0.50
Y
0.0205
26.0
S
<2.0
<0.045
2.4
<1.0
12
1530
0.50
Y
0.0165
26.3
13
1030
0.50
Y
0.0200
26.0
6.751
I
717
14
N
0.0200
15
N
1 0.0200
N
16
1000
0.75
Y
0.0165
24.2
_
17
900
1.00
Y
0.0160
23.5
1 F
18
915
0.75
Y
0.0200
21.9
<2.0
1 <0.G45
<1.0
<1.0
49.2
5.6
1.2
48
19
I515
0.75
Y
0.0 660
23.6
7.21
F.
8.2
20
1145
1.75
Y
0.0233
23.3
21
N
0.0233
C
22
N
0.0233
23
1515
0.75
Y
0.0160
23.2
T
24
1245
0.75
Y
0.0160
23.6
25
1350
0.50
B
0.0145
73.3
1
26
1015
0.75
Y
0.0165
21.9
6.92
<2.0
0.073
<1.0
<1.0
7.66
27
16 00
0.75
Y
0.0175
21.9
O
28
N
0.0175
29
N
0.0175
N
30
1630
0.50
Y
0.0160
21.5
31
12.4<1
AVERAGE
0.01836
24.6
0
0.0191
7.70
45.1
5.45
1.20
44.5
207.212
2244.169
MAXIMUM
0.0233
27.5
7.55
0
0.073
8.2
49.20
5.60
1.20
48
MINIMUM
0.0I4
21.5
6.75
0
0
7.17
41.00
5.3
1.20
41
Com .((:)/Gnb(G)
G
G
G
C
C
G
C
C
C
C
Dail Limit/Nov-Mar
0.10
6-9
6-9
28
22.5
1 I5.0
10
2.0
45
130.01
400
200
>6.0
>6.0
Month] Limit
Total Monthly Flow
0.5509
Nov 01 2013
In/orrHatD.pf�QN-
aBtJ6 k

aeals,
Ata�,
Pa►
Ae,
Alit♦
A^
A'i
Agolk
Aa,
rip
A^
A^
Amok
Aar
rate
n+,
ago%
^e
AN\
Oak
•.
.1alk
00%
000%
Aa%
Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDESPERMITNO._ NC0054564 DISCHARGENO_WI_ MON1N_Octobel YEAR_ 2013
FACILITY NAME_Nause Colony CLASS_11 COUNTY_ Johnston
CERTIFIED LABORATORY (I ENCO CERTIFICATION NO. NC 591
(list sddilionsl laboratories on the berhdde/Me 2 ofthis form)
OPERATOR IN RESPONSIBLE CHARGE (ORC)- Gudey GRADE_ N CERTIFICATION NO. 995050
PFPSnNIRlrnl t 9MNr. BAMPI.P.9 Van Gurlev ORC PHONE_ 919-625-2621
CHECK BOX IF ORC HAS CHANGED
Mail ORIGINAL and ONE COPY W:
ATTN: CENTRAL FILES
DIVISION OF WATER QUALITY
1617 MA IL SERVICE CENTER
RALEIGH, NC 27699-1617
/
1 .-. a / -' /�
]�}�.Gfif�� B
(SIGNA RE OF OPERATOR IN RESPONSIBLE GE) DATE
BY THIS SIGNATURE. I CERTIFY THAT SREPORT IS
ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
SW50 M10
Moot
6806D
I Beta
MIO
W90
1 31616
1 OWW
006W
00665
W6M
0063D
1-
a
o ma
Thee 24M
deep
E
_ _
eb
p e
t
usEfikaW
G
C
O
Dent AdsTerlq
hh s� envel
epsm
PH
ReeMml
Chlmt6m
BOD-$
20c
NH3-N
TSS
Fool
lxorm
Oe.n�
Cmlm6
0,1yen
Total
f4lowen
m
-
a o
n
` B
o o
n
TKN
z
N
z
�p m
5 S
F E
c
m
f Y
HRS
HRS
YfikN
MOD C
UNITS1
UGIL
I MG&
MOIL
MM
I a/IMIML
MGIL
MG.
M44&,
MG4
MM
LBIMO
IJnR
1
745
4.00
Y
0.2013 19.0
1 U
2
740
3.00
Y
0.1749 20.2
1
Q.0
0.10
<I.0
I <1.0
18.1
1.5
1.1
17
3
630
3.501
Y
1 0.1906 20.7
1 V
4
745
4.001
Y
1 0.1961 21.4
5
1 N
1 0.1961
1 D
6
N
10.1961
7
745
3.DO
Y
1 0.2259 23.2
7.471
I
1
7.3
8
745
1.DO
Y
I 0.2DO9 22.2
9
800
3.00
Y
1 0.1967 19.8
1 S
QO
0.10
1.2
<1.0
I
10.4
1.6
1.3
1 9.1
10
750
2.00
Y
1 0.1906 19.1
II
740
5.00
Y
1 0.1917 18.8
I
12
N
1 0.1917
13
N
1 0.1917
1 N
14
755
3.00
Y
0.2053 20.8
7.69
7.5
IS
755
3.00
Y
0.1917 19.6
1 F
Q.0
1.0
1.2
<1.0
9.5
1.8
2.1
7.4
16
8D0
4.00
Y
1 0.1905 20.4
17
640
2.50
Y
0.2096 20.0
1 E
18
750
5.00
Y
1 0.1852 21.0
19
N
1 0.1952
1 C
20
N
10.1952
21
750
4.00
Y
10.1834 17.2
8.01
1 T
8.6
22
800
3.50
Y
0.2658 18.0
1
1 Q.0
0.24
1.2
<1.0
1
15.4
2.7
1.4
14
23
1600
1.00
B
OAD93 19.6
1 I
24
800
3.50
Y
0.1673 16.4
25
715
3.50
Y
0.1760 14.9
1 O
26
N
0.1760
27
N
0.1760
N
28
750
3.50
Y
0.1780 15.1
7.35
6.9
29
1 750
3.50
Y
0.1781 16.0
1 4.6
1 0.10
5.2
<1.0
24.9
5.9
1.9
23
30 1
7401
4.00
Y
0.2166 16.7
31
1 7501
3.75
Y
0.1993 17.4
AVERAGE
R190 19
770
1.54
1.6
14.1
768.176
5956.253
MAXIMUM
0.2658 23.2
8.01
4.6
1
5.2
1
R6
24.9
5.90
2.1
23
MINIMUM
0.1093 14.9
7.35
0
0.10
0
1
6.9
4.9
1.5
1.1
7.4
Cora .(C)ICnb(C)
G
G
C
C
C
C
G
G
C
C
C
C
Da limelA rod
0.25
6-9
6-9
28
75
5.0
10.0
2.0
45.0
30.0
400
200
>6.0
>6.0
2.0 Qtr
Montbl Limit A r Oct
Total Monthly Flow
5.8817
RECEIVED
NOV 2 6 2013
WATEKUUAL11Y SECTION
vFORMATION PROCESSING UNR

Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDES PERMIT NO_ NCODS4564 DISCHARGE N0. 001 MONTH_ September
FACILITY NAME_ Neuse Colony CLASS_11 COUNTY_ Johnelon
CERTIFIED LABORATORY (1) ENCO CERTIFICATION NO. NC 591
fliu additional leboralorka on the backsideps, 2 of this form)
YEAR_ 2013
OPERATOR IN RESPONSIBLE CHARGE(ORC)_Van Gurey GRADE_ N CERTIFICATION NO. 995080
PERSONfS) COLLECTING SAMPLES Van Gudw ORCPHONE 4w.91ix6)i
OX IF
CHECK BINAL.4 C HAS CHANGED-,
R no �//��.y/��)��/ /J� �V
Mail ORIGINAL end FILES COPY no a__\ J' / F
ATTN: CENTRAL FILES x
DIVISION OF WATER QUALITY (SIGNATURE OF OPERATOR IN RESPONS GE) DATE
1617 MAIL SERVICE CENTER BY THIS SIGNATURE. I CERTIFY THAT THIS REPORT IS
RALEIGH, NC 27699-1617 ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
511050
00010
004MI
50960
1 00210
W610
00VO
31616
00)00
00600
00665
00625
0000
F
<
oP.mtor
rma
M-74m
clmk
Em
- -
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h
O
G
0
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aW new
OvA, Into
uese.
eygem
T-P
PH
Rertlusl
emombe
BOD-5
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NH3-N
T55
mYYotm�
Ipeomedr<
••n)
dwNeE
o.>een
Total
Nitrogen
m o
`
F is
a
a`
n
E
m o,
o c
a
TKN
z
m
a
z
in N
es
Q E 9
z
_ o
a c .�
I°- E
in
on
Q f
z a,
c o
R d
F
MRS
HRS
Y/B
MGB
C
UNITS
UM
MG/L
MM
MOIL
01IMML
MG/L
MG/L
MG/L
MG/L
MNL
LB/MO
LBIYR
N
0.2174
U
2
HOLIDAY
N
0.2174
H
3
1630
0.50
B
6.1276
26.2
V
4
700
1.00
B
0.2950
24.8
<2.0
0.057
1.2
<4.0
4.4
1.9
1
3.4
5
1715
0.50
B
0.2113
26.8
D
6
1715
0.50
B
0.)645
24.8
8.14
8.4
7
N
0.1645
1
8
N
0.1645
9
745
4.50
Y
0.1685
22.8
S
10
745
3.50
Y
0.2175
23.9
II
800
2.75
Y
0.2057
23.8
7.84
1
12
745
3.50
Y
0.1959
24.4
< O
L4
I G
<I.0
7.2
8.5
1.7
2.3
6.2
13
750
3.50
Y
0.1887
24.4
N
14
N
0.1887
15
N
0.1887
F
16
750
2.50
Y
0.1947
22.0
17
745
3.50
Y
O. 16411
22.7
E
<2.0
0.12
<10
<10
6.9
1.5
1.2
5.7
18
800
4.00
Y
0.22241
20.5
8.22
8.7
19
1245
4.00
Y
0.12131
20.9
C
20
750
4.00
Y
0.23601
21.2
21
N
0.2360
T
22
N
0.2360
23
715
3.00
Y
0.2207
21.7
1
24
730
2.50
Y
0.1931
20.4
7.60
<2.0
0.20
<1.0
<1.0
8.2
9.5
1.9
1.3
E2
25
725
3.00
Y
0.1790
20.3
0
26
715
2.75
Y
0.2097
20.4
27
750
3.00
Y
0.1873
20.3
N
28
N
0.1873
29
N
0.1873
30
750
3.75
Y
0.2016
19.8
7.45
8,4
31
AVERAGE
MAXIMUM
0.1962
0.295
22.6
26.8
8.22
0
0
0.4443
0.70
1 1
8.18
7.3
1.75
1.65
1.5
5.875
3S9.597
M88.077
IA
1.6
1
8.7
9.5
1.90
2.3
8.2
MINIMUM
0.1213
19.8
7.45
0
0.06
0
I
7.2
49
1-
I.0
3A
Comp. (C) / Lent, (G)
Dail llm;vn r-On
Monthly Until A tr-Oct
0.25
G
G
6-9
G
28
C
C
C
G
G
C
C
C
C
7.5
10A
d5.0
400
>6.0
2-0 Our
6-9
5.0
2.0
30
200
>6.0
Total MonNly Flow
5.8863
NOV 01 2013-
DmlafioD pF
DwIcliOGsIng Umr

NPDES PERMIT N0.
FACILITY NAME
OPERATOR IN RESPONSIBLE CHARGE (ORC)
CERTIFIED LABORATORIES
CHECK BOX IF ORC HAS CHANGED [ ]
Mail ORIGINAL AND ONE COPY to
ATTN: CENTRAL FILES
Division of Water Quality
1617 Mail Sarvic9 Center
Raleigh, NC 27699-1617
Appendix D - NPDES Permit and DMR Data
EFFLUENT
NC0094705
DISCHARGE NO. MONTH Oumhor Year 2013
JOHNSTON COUNTY WTP
CLASS 1 COUNTY Johnston
James Davia
GRADE 1 Phl_v Chem PHONE [phone]
(1)EnWronment 1 (2) M.nteoh
PERSON(S) COLLECTING SAMPLES
�^^
RE(:E�rr�
(SI
URE OF OPERATOR IN RESPONSIBLE CHARGE)
?
Y THIS SIGNATURE. I CERTIFY THAT THIS REPORT
����� •�
IS ACCURATE AND COMPLETE
TO THE BEST OF MY KNOWLEDGE

NPOES PERMIT N0.
FACILITY NAME
OPERATOR TN RESPONSIBLE CHARGE (ORC)
CERTIFIED LABORATORIES
CHECK BOX IF ORC HAS CHANGED t I
Mail ORIGINAL AND ONE COPY to:
ATTN: CENTRAL FILES
Division of Water Quality
1617 Mail Service Center
Raleigh, NC 21699-161
Appendix D - NPDES Permit and DMR Data
EFFLUENT
NCOOUT35 DISCHARGE NO. MONTH
SoptomEar Year2013 ...�
JOHNSTON COUNTY WTP CLASS 1 COUNTY
Johnston
James Davis GRADE 1 Phy/Chem PHONE
919-938.4745 ^
(1)Environment 1 (2) Maritsch
PERSON(S) COLLECTING SAMPLES
^
SIG RE OF OPERATOR IN RESPONSIBLE CHARGE)
Y THIS SIGNATURE, I CERTIFY THAT THIS REPORT
-T ENV ED
IS ACCURATE AND COMPLETE
^
31 Z013 TO THE BEST OF MY KNOWLEDGE.
^
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DEM form MR-1.1 (11921 ^�`

Appendix D - N9f WY Mild DMR Data
4DES PERMIT NO: NCO051322 DISCHARGE NO: 001 MONTH: OCTOBER YEAR: 2013
FACILITY NAME: ASHLEY HILLS CLASS: 11 COUNTY: WAKE
CERTIFIED LABORATORY: ENVIROMENT- ONE CERTIFICATION #: 10
^ (Ilsraatlhlonal laboratories on the backsltle/page2ofthlsform)
OPERATOR IN RESPONSIBLE CHARGE (ORC): WAYNE LEARY GRADE: III CERTIFICATION NO: 988335
PERSON(S) COLLECTING SAMPLES: WAYNE LEARY ORC PHONE: 91G-949-2010
CHECK BOX IF ORC HAS CHANGED ❑ NO FLOW / DIS ARGE FROM SITE • ❑
Mail ORIGINAL and ONE COPY to:
ATTN: CENTRAL FILES x
-- DIVISION OF WATER QUALITY (SIGNATURE OF OPERATOR I RESPON LE CHARGq DATE
1617 MAIL SERVICE CENTER BY THIS SIGNATURE, I CERTIFY THAT THIS REPORTOS
RALEIGH, NC 27699-1617 ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
w
E
50050
00010
004DO
50060
00310
00610
00530
31616
00300
006M
OD665
00625 00630 00600
ly
o
s
t y
m$
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V
W
=
n
Q z
O
W J
��
M V
mN�
Z W
O
Q Z
o f
I-'
p?
N
f m
0
QE
s 0
W0n.
W
t7
H
p 0
w
C�
Z
wt
0:
0
�N
SF
ENTER PARAMETER CODE
ABOVE NAME AND UNITS
EFF
INrF❑
Yz79w!,
0O.
C
t
2
� fQ
Gf
❑� UV
HRS
HRS
Y/B/Nl
MGD
O C
UNITS
UG L
MG/L
MG/L
MG/L
#/100ML
MG/L
MG/L
MG/L
MG/L
'MG/L
LB/MO
1
0945
5
Y
1 0.118
22
1
1 2.2
0.07
< 2.5
5
9.3
1 7.67
1.15
6.52
2
11GO
5
Y
0.131
23
7.6
3.0
0.59
< 2.5
< 1
3
0830
4
Y
0.138
23
< 2.0
0.08
< 2.5
< 1
8.4
4
1055
6
Y
0.106
24
8.2
5
1245
2
Y
0.145
6
0.160
7
0845
6
Y
0.088
1 25
7.9
< 2.0
< 0.04
< 2.5
< 1
8.2
7.16
0.30
1.12
6.04
B
0945
5
Y
0.136
24
3.0
< 0.04
< 2.5
2
8.2
9
0845
5
Y
0.121
22
< 2.0
< 0.04
< 2.5
< 1
8.1
io
09DO
5
Y
0.121
21
11
1100
4
Y
0.126
21
t4�
Tr
12
0.147
13
0.170
INFORM
TION
(Q
I. I NT
14
1015
6
Y
0.142
23
6.5
15
10DO
6
Y
0.137
1 22
7.8
4.5
0.11
< 2.5
32
7.9
8.67
3.15
5.52
16
0830
6
Y
0.136
22
< 2.0
0.20
< 2.5
2
7.3
17
0930
6
Y
0.143
23
< 2.0
0.08
< 2.5
< 1
1s
0830
5
Y
0.114
23
19
0.152
20
0.142
21
1D00
3
Y
0.127
21
< 2.0
< 0.04
< 2.5
< 1
8.71
0.43
1.03
7.68
22
0900
8
Y
0.131
20
7.8
< 2.0
< 0.04
< 2.5
< 1
5.6
23
0830
6
Y
0.127
20
< 2.0
< 0.04
< 2.5
< 1
5.4
24
0900
5
Y
0.225
20
5.5
25
1030
6
Y
0.103
19
z6
0.133
27
0.141
28
1000
6
Y
0.159
19
29
09DO
8
Y
0.154
19
7.6
< 2.0
< 0.04
< 2.5
< 1
5.3
15.15
1.11
14.04
30
0830
6
Y
0.118
19
< 2.0
< 0.04
< 2.5
< 1
5.7
311
08301
5
Y
0.125
20
< 2.0
< 0.04
< 2.5
< 1
5.7
325.0
AVERAGE
0.133
22
0.8
0.08
0.0
2
7.0
9.47
0.37
1.51
7.96
325.0
MAXIMUM
0.170
25
7.9
0
4.5
0.59
0.0
32
9.3
15.15
0.43
3.15
14.04
325.0
MINIMUM
0.088
19
7.6
0
<2.0
<0.04
<2.5
<1
5.3
7.16
0.30
1.03
5.52
325.0
Comp. (C)/ Grab (G)
G
G
G
C
C
C
G
G
C
C
C
C
CALC
Monthly Limit
0.25
N/A
>6to<9
28 UG/L
5.0
2.4
30.0
200
> 5
N/A
N/A
N/A
N/A
N/A
MONTHLYTOTAL 4.116
^ DWO Fnrm MR-1H1/Odl

Appendix D - NPbE��e�mi qid DMR Data
,1PDES PERMIT NO: NCO051322 DISCHARGE NO: 001 MONTH: SEPTEMBER YEAR:
FACILITY NAME: ASHLEY HILLS CLASS: II COUNTY:
CERTIFIED LABORATORY: ENVIROMENT- ONE CERTIFICATION 9: 10
(I(s[ oddl0anpllaboromrles on the ba[kslde/pogel oJthlsJorm)
OPERATOR IN RESPONSIBLE CHARGE (ORC): WAYNE LEARY GRADE: III CERTIFICATION NO:
PERSON(S) COLLECTING SAMPLES: WAYNE LEARY ORC PHONE: [phone]
CHECK BOX IF ORC HAS CHANGED -� - vENO FLOW / DISCH)AGE FROM SITE
�-(
Mail ORIGINAL and ONE COPY to: D
ATTN: CENTRAL FILES x
DIVISION OF WATER QUALITY n141 O G 013 (SIG RE OF OPERATOR IN RSSPONsinE CHARGE)
1617 MAIL SERVICE CENTER BY THIS SIGNATURE, I CERTIFY THAT THIS REPORT IS
RALEIGH, NC 27699-1617 �r,;WN A celNr I INICURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
c
Z013
WAKE
988335
E
5p00a50
0Q0010
OD400
5Q0060
00310
006_10
D0530
31616
00300
00600
00665
0F06
006250K~
63F¢z0
Q❑ly
qaEFmw
O
a
O
O
O
FLOWw
Z
wV
❑Y
j
wA
O
E
W
O
w2
O
H
z
d
p
ENTER PARAMETER CODE
ABOVENAMEANDUNITS
EFF
INF
O
z
WK0i
O t
z
HRS
HRS
Y/B/N
MGD
I O C
UNITS
UG/L
MG/L
MG/L
MG/L
I #/100ML
MG/L
MG/L
MG/L
MG/L
MG/L
LB/MO
1
0.146
2
0.176
3
0845
3
B
0.106
28
7.6
3.1
2.07
< 2.5
< 1
7.2
4
0830
6
Y
0.145
25
2.1
1.38
< 2.5
< 1
5.6
5
0900
6
Y
0.124
27
< 2.0
0.85
< 2.5
< 1
5.4
3.46
0.32
1.17
2.29
6
0815
6
Y
0.142
26
7
0.142
8
0.142
9
1030
6
Y
0.144
26
3.5
0.34
<2.5
28
5.17
1
1.17
4.00
10
0850
5
Y
0.149
26
7.8
2.5
0.19
< 2.5
12
5.8
11
1015
5
Y
0.124
26
<2.0
<0.04
<2.5
<1
12
0830
4
Y
0.137
26
6.5
13
0930
5
Y
0.115
26
6.9
14
0.148
is
0.148
16
0930
6
Y
0.137
26
2.3
< 0.04
< 2.5
22
7.2
5.19
2.63
1 1.03
4.16
17
0930
6
Y
0.131
25
<2.0
<0.04
<2.5
<1
6.9
is
11301
S
0.123
24
7.9
<2.0
<0.04
<2.5
<1
19
0900
6
0.126
24
5.6
20
0900
3
0.132
23
21
dB
0.189
22
0.150
23
0830
6
0.159
19
8.0
2.3
< 0.04
< 2.5
<1
6.1
5.82
0.78
5.04
24
0900
7
0.129
19
< 2.0
0.62
< 2.5
19
6.9
25
1030
6
Y
0.123
19
< 2.0
0.06
< 2.5
4
6.7
26
15561
2
B 1
0.128
24
27
15361
4
B 1
0.123
24
28
0.143
29
0.154
30
0845
5
Y
0.132
21
170.6
31
AVERAGE
0.139
24
1.3
0.46
0.0
3
6.4
4.91
1.48
1.04
3.87
170.6
MAXIMUM
0.189
28
8.0
0
3.5
2.07
0.0
28
7.2
5.82
2.63
1.17
5.04
170.6
MINIMUM
0.106
19
7.6
0
<2.0
<0.04
<2.5
<1
5.4
3.46
0.32
0.78
2.29
170.6
Comp. (C)/Grab (G)
G
G
G
C
C
C
G
G
C
C
C
C
CALC
Monthly Limit
0.25 N/A
>6to<9
28 UG/L
5.0
2.4
30.0
200
> 5
N/A
N/A
N/A
MON I HLY TOTAL 4.167
nW(3 Fnv MR-1111/n4)

Appendix D - N JWPerNit�gf DMR Data
^ NPDES PERMIT NO. NCO062219 DISCHARGEILNUUOLL�I 11VV 11001 MONTH GashEr YEAR OL3
FACILITY NAME KINGS GRANT CLASS 2 COUNTY WAKE
^ CERTIFIED LABORATORY (1) ENVIRONMENT] CERTIFICATION NO. 10
(list additional laboratories on the backside/page 2 of this form)
OPERATOR IN RESPONSIBLE CHARGE (ORC) Dave Rvniak GRADE 2 CERTIFICATION NO IEt06
PERSON(S) COLLECTING SAMPLES Dave Rvniak ORC PHONE [phone]
^ CHECK BOX IF ORC HAS CHANGED 0 NO FLOW / DISCHARGE FROM SITE • e�J�7
Mail ORIGINAL and ONE COPY to: % 1/`UATTN: CENTRAL FILES x
DIVISION OF WATER QUALITY (bR;NATURE UN OPERAq OR IN RESPONSIBLE CHARGE) DATE
1617 MAIL SERVICE CENTER BY THIS SIGNATURE, I CERTIFY THAT THIS REPORT IS
^ RALEIGH, NC 27699-1617 1 ACCURATE AND COM PLETE TO THE BEST OF MY IOSOWLEDGP
50050
00010
00400
50060
100310
00610
00530
1 31616
1 00300
00600
00665
00625 00630 00600
W
1„
q
E
F
E
¢e
e'n
0
E
`o
n
O
'x
in
O
C
0
FLOW
w
'm
av
w
"'
51
a
Q=
O O
W=
IYU
0a
mN
Z W
00
�m
QZ
p
J O j
1 W
Ora W
�K
w
m
J f
U�'F
IL w E
Og
0
W W
-i0
uOiX
QO
J W
r0
OK
=
m
�s
Oy
a
ENTER PARAMETER CODE
ABOVE NAME AND UNITS
EFF It
INF ❑
Y
F-
W
f F
�¢
z z
z
J w
F
z
J W
F
QQ
o ag
4 uv
aXt�rHll••
NRS
IIRS
Y/B/N
MGI)
a C
UNTS
UG/1,
MG/I,
MCA,
MG/L
N/IUOMI,
MG/l.
MG/I.
MG/1,
MGIL
I MG/L
LIUMO
1
1030i
'2
Y
0.009
23
-
<2.0
0.23
9.7
7
-30.29
4.29
2.113
2&W
121
INS
1 2
1 Y
0.01
23
1 7.7
8.5
4.,1430
2
1 Y
0.008
_25
141
600
i
1 V
1 0. oil
23
51155
1
1 N
1 0.011
---
-
6
1212
0.011
--
71115
2
Y',_o.00&,
2s
8
1000
3
V
1 0.010
24
<2.0
0.51
TS
8.0
35A
2
33.1
'91
19or1
2
Y'
`-oA11 '
24'--'
.
10
1030
3
V
0.007
23
I'll,
800':.,3
' ..
'. 0,01 '.
24
7.8
;.
8.3 ..,
..
12
950
0.010
14
900
1
V
0.009
24
15
1A3A
.Y•
. Y.
`o.009'
.24
-
3.4
0.98
9.5
5'o-
,':33;59 .
4.54
3.09
30.6
16
1030
2
Y
0.012
24
17
1030
2
: Y
0.009
23
18
12001
2 j
V
0.009 1
23
76
7.9
19
1010
-1
Y
.0.014 1
21
201
1200
0.014
21
1000
.; 2
' .Y ..
0.01N)
21.
.. ,
.....
, ..
-
-
,..
...
22
1030
1
Y
0.010
21
3.8
0.59
7.7
10.0
30.97
3.17
27.6
233030:7.¢
"Y ..-
24
1030
2
V
0.009
19
77
7.5
25
1530
2.
Y
0:0081
.19
26
503
0.008
16
z7
o:o9e'
28
1030
2
Y
0.009
18
29
1035
.1
Y
A.009
18 ..
.-
3.5
:; 3.01
8'
`. 34,A:
34.01
4.51'
29.5
130110001
2
Y
0.009
19
31.
1230
3 1
Y
0.006.'
'. 19
7.5 ,
8.7
'
AVERAGE
0.009
22
2A
1.06
8.5
10
8.2
32.79
4.42
2.99
29.80
80.4
-. MAXIMUM.. -
0:019
RS,
,7.8 :..
-
i&
,8.0'
9.7
1-34:0..
„6.7
35.1
..45 :
, 4'S-.
.S3.1(
_
MINIMUM
0.006
16
7.5
0.0
0.2
7.7
5.0
7.5
30.3
4.3
2.0
27.8
Com0.(Cl/Gnb(G)'
G
': G
"0
_. C
C
C
.G '-
G
C
..C:
C.
C
CALC
Mualhly limb
0.070
NL 6.0/9.0 28ugA i 20 30 200 >5.0 NL NL NL
Total Flow
0.294
DWQ Forth MR-] (I1/04)
DEC 042013
WA I tr1uuHL0 r SECT10N
INFORMATION PROCESSING UNIT

/ Appendix D - NPDES Permit and DMR Data
/ EFFLUENT
NPDES PERMIT NO. NCO062219 DISCHARGE NO. 001 MONTH September YEAR 2013
FACILITY NAME KINGS GRANT CLASS 2 COUNTY WAKE
CERTIFIED LABORATORY (1) ENVIRONMENT CERTIFICATION NO. 10
(list additional laboratories on the backsidelpage 2 ofthis form)
OPERATOR IN RESPONSIBLE CHARGE (ORC) Dave Rvniak GRADE 2 CERTIFICATION NO IE106
PERSON(S) COLLECTING SAMPLES Dave Rvniak ORC PHONE [phone] -
CHECK BOX IF ORC HAS CHAIye C RF n NO FLOW / DISCHARGE FROM SITE O
Mail ORIGINAL and ONE CdPy to:
ATTN: CENTRAL FILES
DMSION OF WATER QUALITY NOV O 6
1617 MAIL SERVICE CENTER
RALEIGD NC 27699-1617
�_ Ij /q
x /- 10/1s/43
1013 � NATURE OF UVERNIOR IN RESPONSIBLE CHARGE) DATE
BY'H11S SIGNATURE, I CERTIFY THAT THIS REPORT IS
tGTION ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE
-�noQnr.PqqlNGlJN1T
E
50050
00010
00400
50060
00310
00610
00530
31616
00300
00600
00665
00615 0OM 00600 TG-P3B
q
c o
7n
o
E
~
m
n
O
e -
0
a
0
FLOW
��
aW
fU
a
? z
F."
x
U
Oo
mr
Q Z
00
MIY
fit:
<Z
p
J W
FLu
W�
OaW
HN
��
.
J K f
U�'c
W]:
ILLO Eo
U•
13
W Z
00
y1X
tl/0
p
J Z
HO
OK
I_
Z
y
�a
Om
O
u
ENTER PARAMETER CODE
ABOVE NAME AND UNITS
EFF 11
IMF 1]
Z
Y
WW
HF
FF
Z Z
w
O
f�
Z
o
E-
U t°-
}U1
JF
aQ
O
Oc OV
aRSrRr:.
IIRS
HRS
Y/B/N
MGD
O C
INTIN
UG/L
MG/L
MG/L
MG7
MnWML
MG/L
MG11,
MGM,
MGR_
MG/L
UUMID
2
FIOLIDAY
0,001
HOLIDAY
1
1100
1-
Y
0.014
27
-__­
4
1120
2
Y
0 011
27. ,
59030
6
1500
1
V..--:
0010
23 ".
_._3.1
121
�5
;' 47
7
2216
629
300
19.f
1
1'
0 011
27'--
a
1228
0.011
_
10
1100
3
Y
0.011
26
4.a
0.05
3A
2
2413
1,23
2350
11
t530
1
V
0011
.. 27
-
-
12
1110
1
-V
-0010�-
- 26
_
--�
-
7.5
13
1445
'T
Y„
'9011
26
14
1615
0 006
25
151
1MO
0006.-
16
1111
2
Y
0 W8
17
ima
1,
Y
0612
25"
<20
-0.04
<2.5
2
33.43
.5.02-
123
3220
IS
1110
3
Y
0,007
24
P
19
Icw
2
V
0D13
24
20
1215
2
Y
0.011
23
8.2
21
725
0.011
�3
22
1050-
23
.0W.
3
Y
0.013
21
21
945
2
Y
0.008
- 22
--_-
---0
4
0.15-
�- 8.0
15
29,18
168
27.50
H_
25
26
930
1110
2
3
Y-
Y
0.01
0.012
24
24
_
--
5.8
27,
"955
1
` Y
0.011
"23
_.
28
1555
1
Y
0 011
0017.
-
..
30
1115
2
Y
0012
23
AVERAGE
0.010
25
0.0
0.35
2.8.09
-�7
7.5
27.38
6.06
180
25.58
67.1
P
MAXIMUM
0014
27
0.0'
3.1
-12
4].0
8.2
33.4
6.3
_
MINIMUM
0.001
21
0.0
00
00
00
2.0
68
22.2
58
_3.t_322
1.2
19.1
Cow C) I G-I, G)
-. G
G_
G
C
C
C
G
G
C
C.
C
" C
CAI:C
C
Atomlay u-it
0070
NI.
6.0/9.0
28urJI
26
20
30
21NI
>5.0
NL
__
NI.
NI,
NI.
Nl.
�1,
TOL11 Flow
0.294
_
DWQ Form MR-] (11/04)

.,
.,
Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDES PERMIT NO. NCO065706 DISCHARGE NO. 001 MONTH October YEAR 2013
FACILITYNAME COTTONWOOD CLASS) COUNTY WAKE
OPERATOR IN RESPONSIBLE CHARGE (ORC): WILLIAM LAMM GRADE: III PHONE [phone]
CERTIFIED LABORATORIES: ENVIRONMENT 1
CHECK BOX IF ORC HAS CHANGED PERSON(S) COLLECTI GSA APLES WILLIAM LAMM
Mail ORIGINAL and ONE COPY to:
Auk ATTN: CENTRAL FILES `�
DIV. OF WATER QUALITY (SIGNATURE OF OPERATOR IN RESPONSIBLE CHARGE) DATE
Am 1617 MAIL SERVICE CENTER BY TINS SIGNATURE, I CERTIFY THAT THIS REPORT IS
RALEIGH, NC 27699.1617 ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
�aa
50050
o0010
004M
50060
00.110
1 00610
WMO
1 31616 1 0000
WHO
ON65
00625
00630
00600
00600
a
as
IIW
NN
YM
M4O
C
HIIS
MG
M
4140ML
MGM1
MGL
Man,
MLIL
MOIL
1.
LWY
1
12:25
1.50
Y
0.0230
21.0
6.87
17.0
Q.0
0.33
Q.5
1
7.23
3.85
0.72
0.77
3.08
21
1:35
3.25
Y
0.0191
22.1
6.87
7.31
31
8:25
1 1.501
Y
1 0.0548
1 22.6
1 7.14
1
7.21
41
10:50
1 1.001
Y
1 0.0469
1 21.6
1 7.10
1
1
7.28
51
1
1 N
1 0.0469
1(1
61
1 N
1 0.0469
1
IF I
7
9:25
0.501
Y
1 0.0208
1 20.6
1 7.36
1 17.0
1
7.27
81
8:25
1.001
Y
1 0.0410
1 20.4
1 7.17
1
1
7.31
91
8:30
2.001
Y
1 0.0410
1 20.0
1 7.30
1 17.0
1 Q.0
1
1 Q.5
<I
7.35
VVAIt
r ,
10
8:30
1.001
Y
1 0.0304
1 20.1
1 7.30
1
7.31
1
TORMA
IONPRIF�CA
11
9:30
1.001
Y
1 0.0478
19.7
1 7.27
1
1
7.34
121
1 N
1 0.0478
131
1
1 N
1 0.0478
14
8:30
1 1.001
Y
1 0.0381
1 19.1
7.24
1 14.0
1
7.24
15
8:30
1 1.001
Y
1 0.0427
1 19.1
1 7.24
1
7.34
16
8:30 1
1.251
Y
1 0.0427
1 20.3
7.21
1 17.0
Q.O
0.40
Q.5
1
7.27
5.96
0.96
I
4.96
17
8:30 1
1.001
S'
1 0.0271
20.3
7.21
1
7.23
18
7:35 1
1.001
Y 1
0.0434
1 19.4
7.23 1
7.20
19
N
0.0434
20
N 1
0.0434
21
8:30
1.001
Y 1
0.0328 1
18.1
7.23
17.0
7.39
22
8:30
1.50
Y
0.0324
19.0
7.28
7.31
23
13:00
1.001
Y 1
0.0324 1
19.7
7.21
17.0
<2.0
12.5
<I
7.38
24
15:50
1.00
Y
0.0374 1
18.9
7.36
7.24
25
11:55
1.001
Y 1
0.0374 1
18.7 1
7.29
7.43
26
N
0.0374
27
N
0.0374
28
9:35
0.75
Y
0.0329
20.8
7.17
17.0
7.34
29
8:30
1.00
Y
0.0305
20.4
7.19
7.30
30
12:35
1.00
Y
0.0261
19.7
7.20
17.0
7.27
31
8:30
1.25
Y
0.026I
21.0
7.19
17.0
Q.0
47.39
AVERAGE
0.0374
20.11
7.20
]6.7
0.0
0.37
0.0
1.0
7.30
4.91
0.84
0.89
4.02
MAXIMUM
0.0548
22.60
7.36
17.0
Q.0
0.40
Q.5
1.0
7.43
5.96
0.96
1.00
4.96
MINIMUM
0.0197
18.10
6.87
14.0
<2.0
0.33
Q.5
<I
7.20
3.85
0.72
0.77
3.08
Comp. C /Grab C
0.0575
G
G
G
C
C
C
G
G
C
C
C
C
Monthly Limit
>b-<9
10.0
4.0
30.0
200/100
Daily Max
23.0
15.0
20.0
45.0
4001100
Sam lin Pre nenf
Ca H--
n
WR41r
MrttY
WLeMW 2..
..
WM6
We M
Weela
Lmw11
LMnn11
Lnslh
Lmonlh
Mnnlht'
Total Monthl{ Flow 1.1586
nFA1 fnlm MR 111 W,
J
V
UNIT

Appendix D - NPDES Permit and DMR Data
NPDES PERMIT NO. NC0065706
EFFLUENT
DISCHARGE NO. 001 MONTH SEPTEMBER YEAR 2013
FACILITYNAME COTTONWOOD
CLASS 11 COUNTY WAKE
OPERATOR IN RESPONSIBLE CHARGE (ORC):
WILLIAM LAMM GRADE: M PHONE [phone]
CERTIFIED LABORATORIES: ENVIRONMENT I
CHECK BOX IF ORC HAS CHANGED
PERSON(S) COLLECTING SAMPLES WILLIAM LAMM
Mail ORIGINAL and ONE COPY to:
ATTN: CENTRAL FILES
` 1`
%
DI V. OF WATER QUALITY
(SIGNATURE OF OPERATOR IN RESPONSIBLE CHARGE) DATE
1617 MAIL SERVICE CENTER
BY THIS SIGNATURE, I CERTIFY THAT THIS REPORT IS
RALEIGH, NC 27699-1617
ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
00010
own
50060
M10
00610
00530
.1616 00300
00600
00665
00615
00630
00600
00600�8
IZ
yusom„E
r50050
vmjFe,pC1
xae
xas
Mm
c
uwrs
am.
awn,
awa
nu.
a wMa
Wm.
Mm.
MDa.
MM
Mm.
uMo
urea
1
N
N
0.0230
2
H
H
H
0.0230
H
H
H
H
H
H
H
H
H
H
H
H
H
H
3
8:30
1.001
Y
0.0230
26.2
7.16
17.0
7.18
4
8:30
1.25
Y
0.0214
24.9
7.20
7.19
5
12:45
1.00
Y
0.0219
26.1
7.19
17.0
<2D
0.24
<2.5
<1
7.16
7.88
0.56
1.64
6.24
6
8:30
1.00
Y
0.0152
25.9
7.23
7.10
7
N
0.0250
8
N
0.0250
9
10:20
0.75
Y
0.0250
24.9
7.26
17.0
7.20
10
9:25
1.00
Y
0.0204
25.4
7.21
7.13
i
11
8:30
1.501
Y
0.0191
24.1
7.09
17.0
<.0
Q.5
34
7.30
12
8:30
1.00
I Y
0.0202
24.5
7.18
7.24
V
13
8:30
1.00
Y
0.0206
24.0
7.18
7.19
14
N
0.0227
ng1A
mop
15
N
0.0227
16
9:30
1.00
Y
0.0227
23.7
7.18 1
17.0
7.25
17
8:30
1.00
Y
0.0251
23.9
7.23
7.31
18
8:35
1.25
Y
0.0240
23.1
7.50
14.0
<2.0
0.89
3
<1
7.27
6.03
0.8
1.71
4.32
19
14:20
1.25
Y
0.0266
24.0
6.69
7.27
20
8:30
8.001
Y
0.0153
23.6
6.77
7.36
211
1
N
0.0261
221
1
N
0.0261
23
8:30
1.001
Y
0.0261
22.1
6.92
17.0
7.24
24
8:30
1.001
Y
0.0299
22.2
6.81
7,27
25
12:35
3.501
Y
0.0267
22.3
7.34
17.0
<2.0
<2.5
<I
7.19
26
8:45
1.001
Y
0.0164
21.9
7.27
7.19
27
8:30
1.001
Y
0.0261
21.7
7.19
7.23
28
N
0.0261
29
N
0.0261
30
11:25
0.75
Y
0.0261
21.9
7.18
17.0
7.23
31
40.45
AVERAGE
0.0232
23.82
7.14
16.7
0.0
0.57
0.8
2A
7.23
6.96
0.68
1.68
5.28
MAXIMUM
0.0299
26.20
7.50 1
17.0
<2.0
0.89
3.0
34.0
7.36
7.89
0.80
1.71
6.24
MINIMUM
0.0152
21.70
6.6
114.0
<2.0
0.24
Q.5
<1
7.10
6.03
0.56
1.64
4.32
Com . C IGmb G
G
G
G
C
C
C
G
G
C
C
C
C
Months Limit
0.0575
>6_9
10.0
4.0
30.0
2001100
>6.0
2.0
Dail Ma.
2&0
15.0
20.0
45.0
4001100
Sam lio F uea
C.O....
Dail
Wm
Lircea
We
2N 16
W.111
W.W.
Wwm
v..a
vvwa0
Lngn6
vmnla
Ma.M1I
Total Monthly Flow 0.6973
DEMFmn nm.i null

P,
•%
P1
P'N
P•
P\
'w\
An\
Appendix D - NPDES Permit and DMR Data
EFFLUENT
NPDES PERMIT NO. NCO087912 DISCHARGE NO. 001 MONTH October YEAR 2013
FACILITY NAME Wilco Station #197 CLASS I COUNTY Franklin
CERTIFIED LABORATORY (1) N/A CERTIFICATION NO. N/A
(list additional laboratories on the backside/page 2 of this form)
OPERATOR IN RESPONSIBLE CHARGE (ORC) Gary Fischer GRADE Ij CERTIFICATION NO. 987087
PERSON(S) COLLECTING SAMPLES N/A ORC PH 919 250-9918
CHECK BOX IF ORC HAS CHANGED 0 FLOW SCHARGE FROM TE
Mail ORIGINAL and ONE COPY to: G
ATTN: CENTRAL FILES x
DIVISION OF WATER QUALITY (I O OPE R IN P SIB HAR E) A
1617 MAIL SERVICE CENTER BY THIS SIGNATURE, I CERTIFY THAT THIS REPORT IS
RALEIGH NC 27699-1617 ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
II I
I11 I
II�11
III
11 I
I1� I
II I
®'
II II
11�11
II��
_---
©
11
11
DWQ Form MR-1 (II/04)

Appendix D - NPDES Permit and DMR Data
EFFLUENT
.PDES PERMIT NO. NCO087912 DISCHARGE NO. 001 MONTH November YEAR 2012
FACILITY NAME Wilco Station #197 CLASS I COUNTY Franklin
CERTIFIED LABORATORY (1) N/A CERTIFICATION NO. N/A
(list additional laboratories on the backside/page 2 of this form) PUS
OPERATOR IN RESPONSIBLE CHARGE (ORC) Gary Fischer GRADE I CERTIFICATION NO. 987087
PERSON(S) COLLECTING SAMPLES "/Ig=n ORC PHONE [phone]
CHECK BOX IF ORC HAS CFm3pw NO FLOW / DISCHARGE FROM SITE
Mail ORIGINAL and ONE wPto:
ATTN: CENTRAL FILES BAN 4,� Z 1 x
DIVISION OF WATER QUALITY (SIGNATURE OF OPERATOR IN RESPONSIBLE CHARGE) DATEn
1617 MAIL SERVICE CENTER BY THIS SIGNATURE, I CERTIFY THAT THIS REPORT IS
RALEIGH NC 27699-1617 VV ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
•
II I
III I
11•II
Il�t
II I
II. I
II I
� �
II II
Il,li
II..
-_--
NAME AND UNITS BELOW
off V-17m
DWQ Fomi MR-1 (11/04)

mn�
.An&,
Amh�
omlb►
PON
IWO,
Anw�
P'1
AMEN
AM,
Pmlp1
Amb1
Awshk
AWRA
tee
Appendix D - NPDES Permit and DMR Data
EFFLUENT
(APRIL 1 through OCTOBER 31) COPY
NPOES PERMIT NO: NCO073318 DISCHARGE NO.: 001 MONTH: SEPTEMBER YEAR: 2013
FACILITY NAME: WHIPPOORWILL VALLEY WWTP CLASS: N COUNTY: WAKE
OPERATOR IN RESPONSIBLE CHARGE: JOEL CLARKE GRADE: III PHONE: [phone]MW
CERTIFIED LABORATORIES: (1) ENVIRONMENT 1 (2) CLARKE UT[LRtES-FIELD PARAMETERS
Check box if orc ha PERSONS) COLLECTING SAMPLES: JOEL CLARKE
RFC V E
MAIL ORIGINAL AND ON D
ATT: CENTRAL FILES rT X
DIVISION OF WATER QUALITYQCDEI�IR3 U 2013 NA RE O RC) DATE
BY IS Sl Tul I CERTIFY THAT THIS RpFORT iS
1617 MAIL SERVICE CENTEIE ENTRAI. D COMFLETE TO THE BEST OF MY KNOWLEDGE.
RALEIGH, NC 27699-1617 DW018 G
D
A
T
E
Opr.
Arrive
Time
2400
dock
Opr.
Time
on
Site
oRc
on
Site
60050
00010
00040
50060
00310
00610
00530
31616
00300 00625 00630
00600
00665
Flow
Temp.
pH
Res
C12
BOD5
Q
20C
NH3-N
T
S
S
Fecal
Conform
Geonwft
lateen
Dueowed
OMM
(DO)
TKN
Nitrate
Nitrite
Total
N
Total
P
I Inf
PQ Eff
9
HRS
I HRS
Y/N
MGD
C
UNITS
ugA
m
m
# / 100 ml
rn
1
0.0267
2
1015
2.5
Y
0.0232
25.9
3
940
2.5
Y
0.0224
26.1
4
909
2.5
Y
0.0224
262
7.07
26
<2.0
0.10
<2.5
<1
6.03
0.78
1.76
2.54
1 A8
5
1212
2.5
Y
0.0232
25.8
6
1245
2.5
Y
• 0.0253
25.8
7
• 0.0253
8
• 0.0253
9.1154
2.5
Y
0.0232
25.4
10
1255
2.0
Y
0.0236
25.0
111
945
2.5
Y
0.0236
24.8
12
935
2.0
Y
0.0224
24.5
7.15
28
<2.0
<.04
<2.5
1
6.81
13
1005
2.0
Y
• 0.0267
24.2
14
• 0.0267
15
• 0.0267
16
926
2.5
Y
0.0228
24.0
17
955
2.5
Y
0.0228
23.0
7.11
29
<2.0
0.14
3.0
<1
8.03
0.76
3.90
4.66
1.91
18
920
2.5
Y
0.0232
23.2
19
914
2.5
Y
0.0240
23.0
20
1036
2.5
Y
• 0.0232
22.6
21
• 0.0240
22
• 0.0240
23
1000
3.0
Y
0.0232
21.6
24
853
4.0
Y
0.0232
21.4
25
902
3.0
Y
0.0240
21.4
1 7.17
28
3.3
0.12
<2.5
<1
6A5
26
1020
3.0
Y
0.0224
21.5
27
1136
2.5
Y
0.0253
21.6
281
0.0253
29
• 0.0253
30
900
3.0
Y
0.0224
21.8
31
TOTAL FLOW
0.7218
AVERAGE
0.0241
23.8
28
2.3
0.10
2.6
0
6.83
0.77
2.83
3.60
1.70
MAXIMUM
0.0267
26.2
7.17
29
3.3
0.14
3.0
1
8.03
0.78
3.90
4.68
1.91
MINIMUM
0.0224
21 A
7.07
26
<2.0
<.04
<2.5
<1
6.03
0.76
1.76
2.54
I AS
COMP/GRAB
CONT.
GRAB
GRAB
GRAB
COMP
COMP
COMP
Grab
GRAB
COMP.
COMP
COMP.
COMP.
DAILY LIMIT
NA
NA
NA
NA
7.5
10.0
45.0
400
>5
NA
NA
NA
NA
QUARTERLY LIMIT
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
2.0
MONTHLY LIMIT AVG. .0500
NA
>6,<9
28.0
5.0
2.0
30.0
200
NA
NA
NA
NA
NA
MONITORING FREQUENCY Cont.
Daily
Wkly
Wkly
Wkl
2ROH
WTH
21MTH
2NTH
FREQUENCY MET Yes
Yes
Yes
Yes
Yes
Yes
Yes
I Yes
Yes
Yes
I Yes
Yes
Yes
COMPLIANT YES
NA
YES
YES
YES
YES
YES
YES
YES
YES
YES
NA
YES
*averaged e-estimated by lab s-weekend TN Monthly Loading (Ibs 21.7
DEM Form MR-1 12193 Annual TN Mass Loading [ NA
Phosp. Quarterly (avg.) 122

Pam►
Appendix D - NPDES Permit and DMR Data
oww
EFFLUENT
COPY
-
(APRIL 1 through OCTOBER 31)
Am%
NPDES PERMIT NO: NCO073318
DISCHARGE NO.: Cal MONTH: OCTOBER YEAR: 2013
FACILITY NAME: WHIPPOORWILL VALLEY WWTP CLASS: II COUNTY: WAKE
OPERATOR IN RESPONSIBLE CHARGE: JOEL CLARKE GRADE: III PHONE: [phone]
CERTIFIED LABORATORIES: (1)
EA'VIRONMENT 1 (2) CLARKE UTILITIES -FIELD PARAMETERS
Check box if orc has changed [ ]
PERSON(S) COLLECTING SAMPLES: JOEL CLARKE
MAIL ORIGINAL AND ONE COPY TO:V`
E D
ATT: CENTRAL FILES
X
DIVISION OF WATER QUALITY- DENR
(
1617 MAIL SERVICE: CENTER
"NATOFfi(YR-C) DATEOEC 0 4 2013
BY THII CERTIFY THAT THIS REPORT IS
ACCURATE AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
RALEIGH, NC 27699-1617
Vyr, Cr, %AVh,,, ; I SEC i ION
�1
HF^RMAT'��' a�Orc�"ti!G UNIT
D Opr.
A Arrive
T Time
E 2400
clock
Opr.
Time
on
Site
ORC
on
Site
5005D
00010
00040
50060
00310
00610
00530
31616
00300 00625 00630
00600
00665
Flow
Temp.
pH
Res
C12
BOD5
@
20C
NH3-N
T
S
S
Fecal
Coliform
Geometric
Mean
Dissolved
Oxygen
(DO)
TKN
Nitrate
Nitrite
Total
N
Total
P
f I Inf
fX1 Eff
#
1
HRS
1205
I HRS
3.0
YIN
Y
MGD
0.0220
C
21.8
I UNITS
u A
m /L
m /L
m /L
# / 100 ml
m /L
m /l
m /I
Mall-
m /L
2
950
3.0
Y
0.0220
21.5
3
4
855
1400
3.0
2.5
Y
Y
0.0216
0.0231
21.6
21.5
1 7.21
24
<2.0
0.15
<2.5
<1
6.38
1.33
5.99
7.32
1.65
5
0.0231
6
0.0231
7
1000
2.5
Y
0.0220
21.3
8
956
2.5
Y
0.0220
21.6
9
10
1005
920
3.0
3.0
Y
Y
0.0228
0.0228
21.4
21.5
7.23
26
1 <2.0
0.12
<2.5
<1
5.78
11
1355
3.0
Y
' 0.0237
21.3
12
• 0.0237
13
0.0237
14
915
2.5 1
Y
0.0212
21.0
15
910
3.0 1
Y
0.0216
21.1
16
1001
2.5
Y
0.0216
21.2
17
18
835
1410
2.5
3.0
Y
Y
0.0220
0.0209
21.2 1
21.0
7.14
25
<2.0
0.15
<2.5
<1
6.61
1.00
7.39
8.39
2.18
19
0.0209
20
0.0209
21
950
3.0
Y
0.0228
20.3
22
945
3.0
Y
0.0208
19.4
7.23
29 1
<2.0
0.09
<2.5
<1
7.83
23
1045
2.5
Y
0.0212
19.8
24
1035
2.5
Y
0.0216
19.4
25
1350
3.0
Y
0.0205
19.0
26
0.0205
27
0.0205
28
958
3.0
Y
0.0228
18.9
29
1010 1
2.0 1
Y
0.0212
18.0 1
7.29
29
2.4
0.06
<2.5
<1
8.29
30
1350
2.5 1
Y
0.0216
18.3
3111305
1
2.5 1
Y
0.0220
18.0
TOTAL
FLOW
0.6802
AVERAGE
0.0219
20.4
27
2.1
0.11
<2.5
0
6.98
1.17
6.69
7.86
1.92
MAXIMUM
0.0237
21.8
7.29
29
2.4
0.15
<2.5
<1
8.29
1.33
7.39
8.39
2.18
MINIMUM
0.0205
18.0 1
7.14
24
1
<2.0
0.06
<2.5
<1
5.78
1.00
5.99
7.32
1.65
COMP/GRAB
CONT.
GRAB
GRAB
GRAB
COMP
COMP
COMP
Grab
GRAB
COMP. COMP.
COMP.
COMP.
DAILY LIMIT
NA
NA
NA
NA
7.5
10.0
45.0
400
>5
NA
NA
NA
NA
QUARTERLY LIMIT
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
2.0
MONTHLY LIMIT AVG. .0500
NA 1
>6.<9
28.0
5.0
2.0
30.0
200
NA
NA
NA
NA
NA
MONITORING FREQUENCY Cont. I
Daily
Wklv
Wkly
Wkly
l
Wkly I
Wkly
Wkl
2/MTH 2/MTH
2/MTH
2/MTH
FREQUENCY MET Y@S
Yes
"es
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
COMPLIANT YES NA 1 ES YES YES I YES I YES YES T
'averaged e-estimated by lab s-weekend TN Monthly Loading (lbs 44.6
OEM Form MR-1 12/93 Annual TN Mass Loading Ibs r NA di
YES
YES
YES
NA I
YES
Phosp. Quarterly (avg.) 11 NA

mm"',
A,
Amft1
An�
pn.
ANDS
fvn1
.40�
,ems
Ay
Awn�
,Amm1
AN&,
#M'b,
A+ffi�
A�
Asti
/s1et
A0=�
A�
�1
1"e5
A"11',
Appendix D - NPDES Permit and DMR Data
EFFLUENT COPY
(APRIL 1 through OCTOBER 31)
NPDES PERMIT NO: NCO063746 DISCHARGE NO.: 001 MONTH: OCTOBER YEAR: 2013
FACILITY NAME: DEERCHASE WWTP CLASS: II COUNTY: WAKE
OPERATOR IN RESPONSIBLE CHARGE: JOEL CLARKE GRADE: III PHONE: [phone]
CERTIFIED LABORATORIES: (1) ENVIRONMENT 1 (2) CLARKE UTILITIES -FIELD PARAMETERS
Check box if orc has clw�j[' F COLLECTING MPLES: JOEL CLARKE
-A
MAIL ORIGINAL AND ONE COPY TO: / �l ZD13
ATT: CENTRAL FILES DEC 0 4 2
DIVISION OF WATER QUALITY- DENR (I C4k4rTO RE ORC) DATE
WAI th U� Lt I Y SECTION
1617 MAIL SERVICE CENTER INFORMATION ROCEL+t3 NGbTQ j ITURE. I CERTIFY THAT THIS REPORT IS ACCURATE
RALEIGH, NC 27699-1617 �7�AND COMPLETE TO THE BEST OF MY KNOWLEDGE.
D
A
T
E
#
Opr.
Arrive
Time
2400
clock
PHES
Opr.
Time
on
Site
HRS
ORC
on
Site
YIN
50050
00010
00040
50060
00310
00610
1 00530
31616
00300
00625
00630
00600
00665
Flow
Temp.
C
pH
I UNITS
Res
Cl2
u /l
BOD5
@
20C
m /L
NH3-\�
m /L
T
S
S
m /L
Fecal
Coliform
Geometric
Mean
/ 000 m
Dissolvd
oxygen
(DO)
m L
TKN
m /l
Nitrate
Nitrite
m /l
Total
N
m /L
Total
P
m /L
Chronic
Toxicity
Test
Results
P/F
I Inf
[XI Eff
MGD
1
1002
3.0
Y
0.0190
22.3
2
919
2.5
Y
0.0186
22.3
3
926
3.0
Y
0.0189
22.2
7.23
<2.0
0.28
<2.5
<1
5.25
1.11
5.55
6.66
2.07
4
1125
2.5
Y
0.0210
22.1
5
0.0210
6
1
0.0210
7
1203
3.0
Y
0.0201
21.6
8
905
2.5
Y
0.0200
21.5
9
912
2.5
Y
0.0190
21.5
7.17
<2.0
0.15
<2.5
<1
5.80
10
1320
3.0
Y
0.0186
21.3
11
1245
2.5
Y
0.0203
21.0
12
0.0203
13
0.0203
14
1200
3.0
Y
0.0199
21.3
15
1154
3.0
Y
0.0186
21.2
16
908
3.0
Y
0.0189
21.5
171
926
4.0
Y
0.0180
21.6
7.20
<2.0
0.20
<2.5
<1
5.58
1.06
7,83
8.89
2.84
18
1048
3.0
Y
13.0193
211
19
0.0193
20
0.0193
21
909
3.0
Y
0.0183
20.1
P
22
910
2.5
Y
0.0183
19.8
7.18
2.2
0.07
<2.5
<1
5.61
23
1324
2.5
Y
0.0180
19.8
24
1302
2.5
Y
0.0175
19.5
25
1036
3.0
Y
0.0193
19.2
26
0.0193
27
0.0193
281
913
3.0
Y
0.0185
18.6
29
914
3.0
Y
0.0191
18.3
7.26
<2.0
0.09
<2.5
<1
5.94
30
1025
2.5
Y
0.0194
18.5
31
1114
3.0
Y
0.0182
18.3
TOTAL FLOW 0.5966
AVERAGE 0.0192
MAXIMUM 0.0210
MINIMUM 0.0175
COMP/GRAB CONT.
DAILY LIMIT NA
QUARTERLY LIMIT NA
MONTHLY LIMIT .0500
MONITORING FREQUENCY Cont.
FREQUENCY MET Yes
20.6
22.3
18.3
GRAB
NA
NA
NA
Dail
Yes
NA
NA
NA
GRAB
NA
NA
17.0
NA
Yes
2.0
2.2
<2.0
COMP
27.0
NA
18.0
Wkl
Yes
0.16
0.28
0.07
COMP.
1 25.0
NA
5.0
Wkl
Yes
1 <2.5
<2.5
<2.5
COMP.
45.0
NA
30.0
Wk)
Yes
0.00
<1
<1
GRAB
400
NA
200
Wkl
Yes
5.64
5.94
5.25
GRAB
>5.0
NA
>5.0
Wkl
Yes
1.09
1.11
1.06
COMP.
NA
NA
NA
2/Mth
Yes
6.69
7.83
5.55
COMP.
NA
NA
NA
2/Mth
Yes
7.78
8.89
6.66
COMP.
NA
NA
NA
2/Mth
Yes
2.46
2.84
2.07
COMP.
NA
NA
NA
2/Mth
Yes
P
P
P
COMP.
P
PIF
P
otrly
Yes
7.26
7.17
GRAB
NA
NA
>6,<9
Wkl
Yes
COMPLIANT YES NA YES I YES I YES I YES I YES I YES YES L YES NA
•averaged e-estimated by lab s-weekend h-holiday Monthly TN Mass Loading(lbs/mth)
DEM Form MR-1 12/93 Annual TN Mass Loadina IIbs/ r
NA
i 38.7
NA YES
NA

paa1
- Appendix D - NPDES Permit and DMR Data omwbk
EFFLUENT
(APRIL 1 through OCTOBER 31) C 0 P rm,�,
NPDES PERMIT NO: NCO063746 DISCHARGE NO.: 001• MONTH: SEPTEMBER YEAR: 2013 ?does
FACILITY NAME: DEERCHASE WWTP CLASS: 1 COUNTY: WAKE
OPERATOR IN RESPONSIBLE CHARGE: X0EL CLARKE GRADE: II PHONE: [phone] mw'
CERTIFIED LABORATORIES: (1) ENVIRONMENT 1 (2) CLARKE UTILITIES-FlELD PARAMETERS ow 1
Check box If arc has changed [ ] PERSON(S) COLLECTING SAMPLES: JOEL CLARKE
C IVE
MAIL ORIGINAL AND ONE COPf:?E /� �/ /
Awml�
ATT: CENTRAL FILES X �
/
DIVISION OF WATER QUALITY DENe C T 0 20 G OF ORC) f DATE
1617 MAIL SERVICE CENTER CENTFIAL FILES0=m,w1cfwYmTTfifiiawmm=u"TE
RALEIGH, NC 27699-1617 BOGmD cmawmTo nE swcw uymow
D
A
T
E
Opr.
Arrive
Time
2400
Clock
Opr.
Time
on
Site
I
oRc
on
Site
50050
00010
00040
50060
00310
00610
1 00530
31616
MW
00625
00830
00600
00665
Flow
Temp.
pH
Res
Cl2
BOD5
@
20C
NH3-N
T
S
S
Fecal
COliform
•
CCmwrtc
Mean
Dinolvd
om"
(DO)
M
Nitrate
Nitric
Total
N
Total
P
Canonic
Toxicity
Test
Results
I Inf
rAj Eff
#I
HIRS
I HR
Y/N
MGD
C
UNITS
pan
ma/L
r/1wrn
m
m
P/F
1
0.0248
2
1130
2.5
Y
0.0231
25.4
3
915
3.0
Y
0.02341
25.4
4
935
2.5
1 Y
0.0238
25.7
7.23
<2.0
0.15
<2.5
<1
5.88
1.28
1.33
2.61
2.17
5
1023
2.0
Y
0.0234
25.8
6
1052
2.5
Y
0.0239
26.0
7
0.0239
8
• 0.0239
9
1013
3.0
Y
0.0221
26.1
10
1000
3.0
Y
0.0225
25.8
11
914
3.0
Y
0.0236
26.1
12
905
2.5
Y
0.0214
26.0
7.13
<2.0
<.04
<2.5
1
1 5.65
13
1125
3.0
Y
0.0240
25.3
14
• 0.0240
15
0.0240
16
900
2.5
Y
0.0215
24.5
17
912
2.5
Y
0.0225
1 23.8
7.17
<2.0
0.14
3.5
<1
6.06
0.61
3.35
3.96
1.49
18
1214
3.0
Y
0.0228
23.6
19
1252
3.0
Y
0.0234
23.5
20
1245
3.0
Y
0.0231
23.7
21
• 0.0231
22
0.0231
23
1111
3.0
Y
0.0232
23.0
24
936
2.5
Y
0.0218
22.9
25
940
2.5
Y
0.0224
22.5
7.20
<2.0
0.14
<2.5
1
6.65
26
1255
2.5
Y
0.0226
22.8
27
1305
3.0
Y
0.0229
22.5
28
` 0.0229
29
0.0229
30
946
3.0
Y
0.0239
22.5
31
TOTAL FLOW
0.6939
AVERAGE
0.0231
24.4
NA
<2.0
0.12
2.8
0.00
6.06
0.95
2.34
3.29
1.83
NA
MAXIMUM
0.0248
26.1
7.23
NA
<2.0
0.15
3.5
1
6.65
1.28
3.35
3.96
2.17
NA
MINIMUM
0.0214
22.5
7.13
NA
<2.0
<.04
<2.5
<1
5.65
0.61
1.33
2.61
1.49
NA
COMP/GRAB
CONT.
GRAB
GRAB
GRAB
COMP
COMP.
COMP.
GRAB
GRAB
COMP.
COMP.
COMP.
COMP.1
COMP.
DAILY LIMIT
NA
NA
NA
NA
27.0
25.0
45.0
400
>5.0
NA
NA
NA
NA I
P
QUARTERLY LIMIT
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
P/F
MONTHLY LIMIT
.0500
NA
>6.<9
17.0
18.0
5.0
30.0
200
>5.0
NA
NA
NA
NA
P
MONITORING FREQUENCY Cont.
Daily
NA
Wkly
WMy
Wkly
WkJv
Wldy
2/Mth
21Mth
2/Mt11
2/Mth
owy
FREQUENCY MET Yes I
Yes
Yes
Yes
Yes
Yes
Yes I
Yes
Yes
Yes
Yes
Yes
YES
COMPLIANT YES
NA
YES
YES
YES
YES
YES
YES
YES
YES
NA
NA
YES
'averaged e-estimated by lab sweekend h-horiday Monthly TN Mass Loading(Ibs/mth) DEM Form MR-1 12/93 Annual TN Mass Load
qNA

Appendix E
www.dewberry.com

Appendix E- Neuse River Ambient Monitoring Station Data
1.J1890000
DO (mg/1)
Pre-2000
2000-2008
2009.2018
Min
N/A
6.50
4.70
Max
N/A
26.30
14.50
Average
N/A
9.87
9.30
HOD (mg/1)
Pre-2000
20W-2008
2009-2018
Min
N/A
N/A
N/A
Max
N/A
N/A
N/A
Average
N/A
N/A
N/A
Ammonia (mg/I)
Pre-2000
ZDOO-2008
2009-2018
Min
N/A
0.02
0.02
Max
N/A
0.59
0.49
Average
N/A
020
0.12
TKN (mg/1)
Pre-2000
20D0,2008
2009.2018
Min
N/A
0.38
0.41
Max
N/A
1.10
1.40
Average
N/A
0.62
0.64
Nltrite/Nitrate (m I)
Pre-2000
2000-2009
2009-2018
Min
N/A
002
O102
Max
N/A
021
0-32
Average
N/A
0 11
0.11
2.J2230000
DO (m I)
Pre-20D0
2D00-2008
2009-2013
Min
4,90
5.80
6.10
Max
14.60
12.80
12.40
Average
8,87
7.78
8.28
BOO (mg/1)
Pre-2000
20W-2008
2009-2013
Min
N/A
N/A
N/A
Max
N/A
N/A
N/A
Average
N/A
N/A
N/A
Ammonia (mg/1)
Pre-20D0
2DDO-2008
2009-2013
Min
0.01
001
001
Max
0.13
046
0.67
Average
0.06
0.07
0.11
TKN (mg/1)
Pre-2000
2000.2008
2DD9.2013
Min
0.10
0.10
0.25
Max
2.40
1.37
2.32
Average
044
0.42
0.66
Nitrite/Nitrate (mg/0
Pre-2000
20DO.2008
2009.2013
Min
0.15
0.04
0.15
Max
1.69
156
1.34
Average
1.08
0.76
0.74
3.J2330000
DO (mg/1)
Pre-2000
2000-2008
2009
Min
2.00
N/A
5.90
Max
10.80
N/A
114
Average
6-52
N/A
8.15
SOD (mg/1)
Pre-2000
20OD-2008
2009
Min
1
N/A
N/A
Max
1.8
N/A
N/A
Average
130
N/A
N/A
Ammonia (mg/1)
Pre-2D00
2000.2008
2009
Min
0.00
N/A
0101
Max
0.10
N/A
0.2
Average
0.07
N/A
0 096
TKN (mg/1)
Pre-2004
2D00-2008
2009
Min
0,40
N/A
0.44
Max
0.60
N/A
1.29
Average
0.52
N/A
0.77
Nitrite/Nitrate (mg/1)
Pre-2000
20DO-2008
2009
Min
0.67
N/A
0.13
Max
090
N/A
0.34
Average
0.81
N/A
0.23
19 Dewberry,
QUAL2K - Nuese River Ambient Monitoring Data
Falls Dam to Smithfield
4.J3530000
DO (m i)
Pre-200D
2000-2008
2009-2028
Min
4.40
N/A
N/A
Max
12.40
N/A
N/A
Average
7.53
N/A
N/A
BOO (mg/1)
Pre-2D00
2000-2008
2009.2018
Min
0 7
N/A
N/A
Max
7.1
N/A
N/A
Average
230
N/A
N/A
Ammonia (mg/1)
Pre-2000
20OG-2008
2009-2018
Min
000
N/A
N/A
Max
500
N/A
N/A
Average
0.42
N/A
N/A
TKN (mg/1)
Pre-2000
2000-2008
2009-2018
Min
0.20
N/A
N/A
Max
4.70
N/A
N/A
Average
1.09
N/A
N/A
Nitrite/Nitrate (mg/1)
Pre-2000
2000-2008
2009-2018
Min
0.32
N/A
N/A
Max
8.50
N/A
N/A
Average
1.17
N/A
N/A
5.J3970000
DO (mg/1)
Pre-2000
2000-2008
2009- 2013
Min
0.00
470
5.80
Max
143
12.3
12.6
Average
6.77
7-75
8.28
HOD (mg/1)
Pre-2000
20OD-2008
2009.2018
Min
5.30
N/A
N/A
Max
32.00
N/A
N/A
Average
14.09
N/A
N/A
Ammonia (mg/1)
Pre-2000
2000-2008
2009 2013
Min
0.01
0.01
0.01
Max
15.00
045
0.40
Average
2.49
0.09
0.09
TKN (mg/1)
Pre-2000
2000-2D08
2009-2013
Min
0.10
010
0,21
Max
20.00
24.90
2.03
Average
3.31
0.95
0.62
Nitrite/Nitrate (mg/1)
Pre-2000
2000-2008
2009.2013
Min
0.00
0,20
0108
Max
1185
0.71
0.64
Average
0.47
0.39
0.34
6.J40SOD00
00 (mg/1)
Pre-2000
2000-2008
2009-2013
Min
2.30
4.80
6,20
Max
15A
11.7
21.8
Average
7.84
7.51
8.17
HOD (mg/;)
Pre-200D
2000-2008
2009-2013
Min
0.30
N/A
N/A
Max
6.60
N/A
N/A
Average
3,69
N/A
N/A
Ammonia (mg/1)
Pre-2000
2000-2008
2009-2013
Min
0.00
0.01
0.01
Max
4.00
0.56
0.42
Average
0.55
0.10
0.09
TKN (mg/1)
Pre-2000
2000-2008
2009.2013
Min
0.14
0.10
0.27
Max
5.40
12.68
1.54
Average
1.19
0.74
(1.69
Nitrite/Nitrate (mg/1)
Pre-2000
20M2008
2DD9-2013
Min
0.02
0.07
0.04
Max
1.24
0.49
0,46
Average
0.44
0.27
0.26
7.14080D00
DO (mg/1)
Pre-2000
2000-2008
2009-2018
Min
3.10
SID
6.10
Max
14.60
12.70
12.20
Average
8.72
8.17
8.52
HOD (m 1)
Pre-2D00
2000-20DS
2009-2018
Min
N/A
N/A
N/A
Max
N/A
N/A
N/A
Average
N/A
N/A
N/A
Ammonia (mg/1)
Pre-2000
2000-2009
2009.2018
Min
0.01
0.01
0.02
Max
0.35
0,53
0.50
Average
007
0.09
0.12
TKN(mg/1)
Pre-2000
2000-2008
2009-2018
Man
0.10
0.10
0.25
Max
2.96
1.56
1.79
Average
0.55
0.49
0.80
Nitrite/Nitrate (m )
Pre-2000
2000.2008
2009-2018
Min
0.07
0.33
0.50
Max
3.14
3.86
3.39
Average
1.13
1.54
1.73
9,J4110D00
00 (mg/1)
Pre-20D0
2000-2008
2009-2018
Min
N/A
N/A
610
Max
N/A
N/A
118
Average
N/A
N/A
816
HOD (mg/1)
pre-2000
2000-2008
2009-2018
Min
N/A
N/A
N/A
Max
N/A
N/A
N/A
Average
N/A
N/A
N/A
Ammonia (mg/1)
Pre-2000
2D00.2008
2009.2018
Min
N/A
N/A
0.02
Max
N/A
N/A
0,33
Average
N/A
N/A
009
TKN (m I)
Pre-2000
20W-2DOS
2009-2018
Min
N/A
N/A
0.28
Max
N/A
N/A
0.90
Average
N/A
N/A
056
Nitrite/Nitrate (mg/1)
Pre-2000
2000-2008
2009-2018
Min
N/A
N/A
0,03
Max
N/A
N/A
0.21
Average
N/A
N/A
0.12
9.J4130000
00 (mg/1)
Pre-2000
2000-2008
2009-2018
Min
4.20
5.00
5.70
Max
10.8
12.4
116
Average
7.13
7.24
8.07
BOD (mg/1)
Pre-2000
2000-2008
2009-2018
Min
3.10
N/A
N/A
Max
3.10
N/A
N/A
Average
3.10
N/A
N/A
Ammonia (mg/1)
Pre-2000
2000-2008
2009-2018
Min
0.25
002
0.01
Max
0.25
031
0.33
Average
0.25
009
009
TKN (mg/1)
Pre-2000
2000-2008
2009-2018
Min
0.70
0.21
0.35
Max
0.70
1.51
1.49
Average
0.70
0.66
081
Nitrite/Nitrate (mg/1)
Pre-2D00
200D-2008
20D9-2018
Min
0.61
0.09
0.08
Max
0.61
1.74
1.46
Average
0.61
0.73
0.62
10.J4170000
DO (mg/1)
Pre-2000
2000.2008
2009-2018
Min
1.40
4.70
490
Max
15.2
15.3
14.8
Average
7.93
796
832
HOD (mg/1)
Pre-2000
200D-2008
2009-2018
Min
0.20
N/A
N/A
Max
8.30
N/A
N/A
Average
2.48
N/A
N/A
Ammonia (mg/1)
Pre 200D
2000-20DS
2009-2018
Min
0.00
0.01
0.02
Max
2000
0.54
0 37
Average_
020
0.10
0.09
TKN (mg/1)
Pre 2000
ZODO-2008
2009-2019
Min
0.30
020
023
Max
3.70
1.55
249
Average
0.69
058
0.79
Nitrite/Nitrate (mg/1)
Pre-2000
2000-2008
2009-2018
Min
0.00
0.01
0.09
Max
2$.00
1.66
1.21
Average
1.44
0.68
0150
11.14190000
00(mg/I
Pre-2000
2MG-2008
2009-2014
Min
220
4.90
620
Max
15.00
12.6D
11.60
Average
832
7.76
8.16
HOD (mg/1)
Pre-2000
2000-2008
2009-2014
Min
N/A
N/A
N/A
Max
N/A
N/A
N/A
Average
N/A
N/A
N/A
Ammonia (mg/II
Pre-2000
2000-2008
2009.2014
Min
0.01
001
0.02
Max
0 65
0.59
0.40
Average
0.12
0.08
0.08
TKN (mg/1)
Pre-2000
2DOO.2008
2009-2014
Min
0.10
0.20
0.21
Max
2.78
2.41
1.92
Average
0.62
0.59
0.82
Nltrite/Nitrate (mg/1)
Pre-2000
2DDD-2008
200972014
Min
0.08
0.13
0.07
Max
2.87
1.49
1.10
Average
1.14
0.58
0.48
12.J4370000
DO (mg/1)
Pre-2000
2000-2008
2009-2018
Min
2.90
5.40
5.34
Max
13.40
14.90
22.93
Average
8.46
8.53
8.63
ROD (mg/1)
Pre-2000
20DD-2008
2009-2018
Min
0.40
N/A
N/A
Max
4.00
N/A
N/A
Average
1,56
N/A
N/A
Ammonia (mg/1)
Pre-2000
2000-2008
2009-2018
Min
0.00
0.02
0.02
Max
5.20
0.67
0.07
Average
0,05
0.07
0.03
TKN (mg/1)
Pre-2000
2000-2008
20D9-2018
Min
0.20
0.30
0.40
Max
6.20
0.88
1.30
Average
0.49
0.53
0.60
Nitrite/Nitrate (mg/1)
Pre-2000
2MG-2008
2009-2018
Min
0.00
0.01
0.18
Max
5.50
1.40
1.10
Average
1.25
0.59
0.49
October 31, 2019

Appendix F
www.dewberry.com

Appendix F: USGS 7Q10 Flow Rate Verification
Aiiiu
Aaq
From:
To:
Cc:
Subject:
Date:
Weaver, John
Crisman. taus
Wall. Leslie) Albertin. Klaus pl John C Weaver
Response from USGS concerning ... Re: [OMRNALI 7Q10 Flow Determination- NC Neuse River
Tuesday, June 4, 2019 9:37:36 AM
1CA[ Q ION] External Email. Do NOT click links or open attachments unless expected, Please use the "Phish Alert" button to report all
suspicious mails.
Alm%
Laura,
001►
In response to your inquiry about the low -flow characteristics (7Q 10, 30Q2, average annual discharge) for USGS Sm. 02087570 Neuse River at
^'
Smithfield (drainage ana 1,206 sgmi) in Johnston County, the following information is provided:
"^
Available data for this streamgage is described at http://waterdata.usgs.gov/nc/nw[s/inventorX/?
A111%
site _no=02087570&agency_cd=I1SGS&amp:&amp: In operation since October 1959, streamflows in this reach of the
Neuse River have been regulated since December 1983 by Falls Lake, located upstream on the Neuse River in
ma►
Wake County. The period of record for daily mean discharges noted for this streamgage is from October 1959 to
September 1990. However, due to the effects of flow regulation beginning in the 1984 water year, less than 10
oink
years record is available for low -flow analyses that reflect the effects of regulation at this streamgage.
Please note that updated low -flow characteristics were not published in a recent statewide low -flow update
A-%
(Weaver. 2015) for this streamgage.
aauA
For streams in Johnston County, low -flow characteristics published by the USGS are provided in the following reports:
(1) The first is a basin -wide report for the Neuse River basin published in 1998. It is USGS Water -Resources Investigations Report
98-4135, "Low -flow, characteristics and discharge profiles for selected streams in the Neuse River basin, North Carolina" (Weaver, 1998).
The report is available online at him Upubs. uses -goy/wri/1998141351report.pdf. This report provides low -flow characteristics (based on
.aaA
data through 1996) for USGS continuous- and partial -record sites in the Neuse River basin where sufficient data was available for
analyses. However, the report does not provide statistical relations for estimating low -flow characteristics at ungaged locations.
4aaA
(2) The second is a statewide report published in March 2015. It is USGS Scientific Investigations Report 2015-5001, "Low -Flow characteristics and
Flow -duration statistics for selected USGS continuous -record streamgaging stations in North Carolina through 2012" (Weaver, 2015), The report is
available online at Ime u/nubs weScowSir au l s ialjL! The report provides updated low -flow characteristics and flow -duration statistics for 266 active
(as of 2012 water year) and discontinued streamgages across the stale where a minimum of 10 climatic years discharge records were available for flow
analyses.
n.a
Inspection of the second report indicates the presence of two USGS continuous -record streamgages on the Neuse River (station id's 02087500 at
naA
Clayton and 02089000 at Goldsboro) upstream and downstream of the Smithfield streamgage where low -flow were published.
It should be noted the streamflow records at the Clayton and Goldsboro streamgages likewise reflect the effects of flow regulation from
upstream Falls Lake (Table 1 footnote; Weaver, 2015).
aaa
To determine the low -flow characteristics for the point of interest on the Neuse River at Smithfield between the Clayton and Goldsboro streamgages,
the following approach is used to determine the flow yields because of the downstream decrease in yields between the two streamgages (first table
below). Rather than apply an avenge of the yields between the two streamgages, equivalent flow yields were determined based on the differences in
discharges for the two streamgages and the intervening drainage area between the two sites (top pan of second table). The equivalent now yields were
then applied to the intervening drainage area between the point of the interest and the Clayton streamgage to estimate the intervening discharges, which
were then added to the flow statistics at the Clayton streamgage (bottom part of second table).
Aaav
Site Site type DA 7Q10 30QZ CIA Source
(sgmi) (cfsm) (cfsm) (cfsm)
,aaaA
00-%
02087500 CR 1150 0.1574 0.2252 0.88 SIR 2015-5001
02089000 CR 2399 0.0921 0.1826 0.97 SIR 2015-5001
aau
Site DA (sgmi) 7Q10 (Cfs) 30Q2 (cfs) Qavg (cfs)
'�'
Back co/cu/oted discharges based on flow yields for indicated streamgage

Appendix F: USGS 7Q10 Flow Rate Verification
USGS Sta. 02087500 Neuse River near Clayton, NC
USGS Sta. 02089000 Neuse River near Goldsboro, NC
1150 181 259 1012
2399 221 438 2327
Difference for intervening area
1249
40
179
1315
Equivalent flow yield (cfsm)
0.0320
0.1434
1.0529
Estimated low flow discharges based on equivalent flow yield and difference in
DA downstream
of Blantyre streamgage
(which is then added to Blantyre flow statistics)
USGS Sta. 02087500 Neuse River near Clayton, NC
1150
181
259
1012
(point of interest) USGS Sta. 02087570 Neuse River at Smithfield, NC
1206
183
267
1071
USGS Sta. 02099000 Neuse River near Goldsboro, NC
2399
221
438
2327
Please note minor differences between the above estimated flows and those hated for the rwo streamgages in Table 3 ofthe second report are a result of
roundtngfollowing the computational procedures.
The estimated 7Q 10 of 183 cfs is equivalent to about 118 MGD. which verifies with the estimated 117 MG mentioned in your email dated May 22,
2019.
Please understand the information provided in this message is based on a preliminary assessment and considered provisional, subject to revision
pending further analyses.
Hope this information is helpful.
Thank you.
7C W eaver
J. Curtis Weaver, Hydrologist, PE Email. icweaver0asas.00v
USGS South Atlantic Water Science Center Online: htlos:llwww.usns.aov/centerslsa-water
North Carolina - South Carolina - Georgia
3916 Sunset Ridge Road
Raleigh, NC 27607
Phone: [phone] // Fax: [phone]
On Wed, May 22, 2019 at 2:58 PM Crisman, Laura <lcrismanAdewberry.com> wrote:
Hi Curtis,
We are conducting an update to a QUAL21k water quality model of the Neuse River in North Carolina. We are
modeling the river under a few low flow conditions and we are relying heavily on available USGS data. I was
referred to you by NCDEQ for verifying a 7Q10 flow assumption. Specifically, can you verify 7Q10 for the
USGS 02087570 station? We have 117 MGD, based on "Low -Flow Characteristics and Flow -Duration
Statistics for Selected USGS Continuous -Record Streamgaging Stations in North Carolina Through 2012"
report published by USGS in March 2016.
Thanks!
Laura
Laura Crisman
Dewberry

..
..
or^
Appendix F: USGS 7G10 Flow Rate Verification
.�
2610 WycliffRoad
Suite 410
Raleigh, NC 27607
[phone]
www.dewbe=.com
Visit Dewberry's website at www.dewberrv.com If you've received this email even though it's intended for
someone else, then please delete the email, don't share its contents with others, and don't read its attachments.
Thank you.
s►

Appendix G
www.dewberry.com

10
9
8
7
6
5
4
3
2
1
0
80
Appendix G: December Flow Calibration - QUAL2K Results
Neuse River (1211112012)
70 60 50 40 30
—Q, m3/s • Q-data m3/s
20 10 0
(1((1(t([�(11(ft(tl((f(Ifff(11[Ill((11((11(

L
5
4
M
2
1
W.
Appendix G: December Flow Calibration - QUAL2K Results
Neuse River (1211112012)
70 60 50 40 30 20 10 0
—H, m • H-data

14
12
10
i7
is
iN
RA
0
80 70 60
DO(mgO2/L)
—-DO(mgO2/L) Max
---DO sat
Appendix G: December Flow Calibration - QUAL2K Results
Neuse River (1211112012) Mainstem
C77!77�
50 40 30 20 10 0
■ DO (mg02/L) data —-DO(mgO2/L) Min
❑ Minimum DO -data ❑ Maximum DO -data

Appendix H
www.dewberry.com

14
12
En
P
4
2
0
Appendix H: Water Quality Calibration - QUAL2K Results
Neuse River (913012013)
80 70 60 50 40 30 20 10 0
—Q, m3/s • Q-data m3/s

A
5
4
3
2
Appendix H: Water Quality Calibration - QUAL2K Results
Neuse River (913O12O13)
70 60 50 40 30
—H, m • H-data m
20 10 0
1 ) 1 l ) 1 1 1 1 111 1`l',)AIA, )I)A ) Y) Y),,l) )AA,Y)A,)A

30
25
20
15
10
5
Appendix H: Water Quality Calibration - QUAL2K Results
Neuse River (913O12O13)
00,
"IN
0
80
70 60
—Temp(C) Average
—-Temp(C) Maximum
50 40 30
■ Mean Temp -data
❑ Minimum Temp -data
20 10 0
—-Temp(C) Minimum
❑ Maximum Temp -data

10
9
8
7
6
5
4
3
2
1
0
80
70 60
—DO(mgO2/L)
— ._ DO(mgO2/L) Max
-DO sat
Appendix H: Water Quality Calibration - QUAL2K Results
Neuse River (913012013) Mainstem
50 40 30 20 10
■ DO (mg02/L) data 9-DO(mgO2/L) Min
❑ Minimum DO -data Maximum DO -data
C

II)I)I)I)I)I))))))))I)))))))))I))))))))))))
Appendix H: Water Quality Calibration - QUAL2K Results
500
-EA
300
200
100
Neuse River (913012013) Mainstem
70 60 50 40 30
■
—No(ugN/L) ■ Norg (ugN/L) data —-No(ugN/L) Min
—-No(ugN/L) Max 0 Minimum No -data 0 Maximum No -data
20 10 0

450
400
350
300
250
200
150
100
50
0
80
Appendix H: Water Quality Calibration - QUAL2K Results
Neuse River (913O12O13) Mainstem
■
70 60 50 40 30 20 10 0
■ NH4 (ugN/L) data—NH4(ugN/L) —-NH4(ugN/L) Min
—-NH4(ugN/L) Max ❑ Minimum NH4-data ❑ Maximum NH4-data

l))l)l)I))l)))ll)I1111)1111)1)lll)1)ll)ll
Appendix H: Water Quality Calibration - QUAL21K Results
700
EDE
500
400
,5TITOIN
100
Neuse River (913012013) Mainstem
70 60 50 40 30 20 10 0
■ NO3 (ugN/L) data—NO3(ugN/L) —-NO3(ugN/L) Min
—-NO3(ugN/L) Max ❑ Minimum NO3-data ❑ Maximum NO3-data

I ( I I I ( [ ( I ( ( ( I I I I I ( I I [ [ I ( [ [ [ ( ( ( ( ( ( ( ( ( ( i ( ( i I I
300
250
P
150
100
50
Appendix H: Water Quality Calibration - QUAL2K Results
Neuse River (913012013) Mainstem
■
70 60 50 40 30 20
■ Porg (ugN/L) data —Po (ugP/L) — -Po (ugP/L) Min
— -Po (ugP/L) Max ❑ Minimum Po -data ❑ Maximum Po -data
10 0

Appendix I
www.dewberry.com

IIII))))))))I)))))))I)))))I)I))I)II)IIII))II
Appendix I: Low Flow Neuse River Model - QUAL2K Results (Little Creek WRF 2.5 MGD)
Neuse River - WRF 2.5 MOD (713012019) Mainstem
14
12
10
8
6
00000
2
70 60
—DO(mgO2/L)
11 Maximum DO -data
50 40 30
■ DO (mg02/L) data
---DO sat
20 10
❑ Minimum DO -data
I

I I ( ( ( ( I I ( ( ( ( ( ( ( ( I ( ( ( ( ( ('C(,( ( ( ( t ( ( ( ( ( ( ( ( ( I ( I
7
5
4
3
2
1
Appendix I: Low Flow Neuse River Model - QUAL2K Results (Little Creek WRF 2.5 MGD)
Neuse River - WRF 2.5 MGD (713012019)
70 60 50 40 30 20 10 0
—Q, m3/s 0 Q-data m3/s

l)l))l)l)l)1111)11111)1)1l))l)))1111)llll)1
Appendix I: Low Flow Neuse River Model - C UAL2K Results (Little Creek WRF 2.5 MGD)
1.2
m
0.4
0.2
Neuse River - WRF 2.5 MOD (713012019)
70 60 50 40 30
—H, m • H-data m
20 10 0

Appendix J
www.dewberry.com

Appendix J: Low Flow Neuse River Model - DUAL2K Results (Little Creek WRF 10 MGD)
14
12
10
8
6
4
2
0
80 70
Neuse River - WRF 10 MGD (713012019)
60 50 40 30
—DO(mgO2/L) ■ DO (mg02/L) data
❑ Maximum DO -data ---DO sat
20 10 0
❑ Minimum DO -data

( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( (,( ( ( ( ( ((t((((((((((((
0
7
n
5
2
3
2
1
a
Appendix J: Low Flow Neuse River Model - QUAL2K Results (Little Creek WRF 10 MGD)
Neuse River - WRF 10 MGD (713O12O19)
70 60 50 40 30 20 10 0
—Q, m31s • Q-data m3/s

)))))))1))))1)I)1)I))1))))1))))))1))))))))))
1.2
0.8
0.6
0.4
0.2
Appendix J: Low Flow Neuse River Model - QUAL2K Results (Little Creek WRF 10 MGD)
Neuse River - WRF 10 NGD (713O12O19)
70 60 60 40 30
—H, m • H-data m
20 10 0

Appendix K
www.dewberry.com

�1
r"1
MOON
A ft�
A"1
mmb.
Amm1
omm'
pn�
r�
DATE: 7/20/2020
TO: Adugna Kebede (NC DEQ Division of Water Resources- Modeling and TMDL Branch)
FROM: Laura Crisman, PE (Dewberry)
SUBJECT:
NEUSE RIVER QUAL2K MODEL: FALLS DAM TO GOLDSBORO
SENSITIVITY ANALYSES
Town of Clayton Little Creek WRF Expansion Project
MEMO SUMMARY:
A QUAL2K model of the Neuse River was developed to predict DO impacts of the Town of Clayton's Little Creek Water Reclamation
Facility (WRF) expansion. The model files and results were submitted to North Carolina Department of Environmental Quality (NC DEQ) in
a separate report (Rev D- 7/16/20). The following sensitivity analyses look at various inputs into the base models that were submitted to NC
DEQ and presents the resulting impact to the model results. Input variables were selected for sensitivity analysis based upon their potential
to impact the results of the model and/or their level of uncertainty. These sensitivity analyses are intended to provide context to the model
report and results. For each analyses a graphical result and short summary are provided in the following pages. A summary table of the
results is presented below.
Baseline Model
Model
Prediction
Model Input
Variable
Sensitivity Case
Difference from
Baseline Prediction
MIN__1 MAX
Low Flow- Max Daily
NPDES
LCWRF 2.5 MGD
DO
Point Source DO
Point Source DO @ NPDES Limit (Base)
Point Source DO -20% NPDES Limit
-12%
0%
Point Source DO +20% NPDES Limit
0%1
12`Yo
Low Flow- Max Daily
NPDES
LCWRF 2.5 MGD
DO
Diffuse Source DO
Diffuse Source @ 5 mg/L (Base Model)
Diffuse Sources @ 7 mg/L DO
0%1
1.4%
Diffuse Sources @ 3 mg/L DO
-1.4%1
0.0%
Low Flow- Max Daily
NPDES
LCWRF 2.5 MGD
DO
Diffuse Source
BOD
Diffuse Source @ 3.24 mg/L BOD(Base Model)
Diffuse Source @ 5 mg/L SOD
-0.25%
0%
Diffuse Source @ 1.5 mg/L BOD
0%1
0.25%
Low Flow- Max Daily
NPDES
LCWRF 2.5 MGD
DO
Diffuse Source
NH3
Diffuse Source @ 0.1 mg/L NH3-N (Base Model)
Diffuse Source @ 1.0 mg/L NH3-N
-1.3%
0%
Diffuse Source @ 0 mg/L NH3-N
0%1
0.15%
WQ Calibration
(Sept 2013)
DO
Channel Slope Calc
Calibrated HEC-RAS Channel Slope (Base Model)
USGS Streamstats Slope
-9.5%1
2.6%
Average Channel Slope
-3.2%1
5.5%
Flow Calibration
(Dec 2012)
Depth
Channel Slope Calc
Calibrated HEC-RAS Channel Slope (Base Model)
USGS Streamstats Slope
-18%
440%
Average Channel Slope
-29%
27%
Low Flow- Max Daily
NPDES
LCWRF 2.5 MGD
DO
Tributary DO
Tributary DO from AMS (Base)
Tributary DO: -25% from Baseline
-2.0%
0%
Tributary DO: -50% from Baseline
-4.1%
0%
Low Flow- Max Daily
NPDES
LCWRF 2.5 MGD
DO
Tributary SOD
Tributary: 3 mg/L BODS or AMS data (Base)
Tributary: 9 mg/L BODS or 3x AMS data
-1.7%
0%
Tributary: 1 mg/L BOD5 or 1/3x AMS data
0%1
0.6%
Low Flow- Max Daily
NPDES
LCWRF 2.5 MGD
DO
Tributary NH3
Tributary - NH3-N = AMS Data (Base)
Tributary NH3-N = 2x Base
-0.68%
0%
Tributary NH3-N =1/2x Base
0%1
0.34%
Low Flow- Max Daily
NPDES
LCWRF 2.5 MGD
DO
SOD Rate
SOD=1.15/d @ 20C (Base)
SOD = Base +20%
-5.5%
0%
SOD = Base -20%
0%
4.6%
QUAL2K-calculated SOD
-21%
2.9%
Low Flow- Max Daily
NPDES
LCWRF 2.5 MGD
DO
Nitrification Rate
Nitrification Rate = 0.35/d (Base)
Nitrification Rate=0.20/d
-2.3%
9.0%
Nitrification Rate = 0.50/d
-7.3%1
2.5%
Low Flow- Max Daily
NPDES
LCWRF 2.5 MGD
DO
I
BOD Oxidation
Rate
I
80D Oxidation Rate = 0.1/d (Base)
BOD Oxidation Rate = 0.09/d
0%
0.870
BOD Oxidation Rate = 0.2/d
-5.6%1
0.7%
Dewberry
7/20/2020

NEUSE RIVER QUAL2K MODEL, SENSITIVITY ANALYSIS
PROJECT: NEUSE RIVER QUAL2K MODEL FOR TOWN OF CLAYTON NPDES
CLIENT: TOWN OF CLAYTON
LOCATION: 1000 Durham Street Extension; Clayton, NC 27528
PROJECT NUMBER: 50118315
DATE: 07/15/2020
This is arduously of Neuse Rive QUAL2K model sensitivity as follows:
Base Model Cue: Low Flow Model, Daily Maximum NPDES discharge, LCWRF @ 2.5 MGD
Semitivity Input parameter: Point Source DO concentration
Output parnmeter(s): Neusc River DO profile (mg/L)
DISCUSSION/RESULTS: The QUAL2K model from Falls Dam to Goldsboro includes 15 NPDES point source contributions. NPDES pool limits were modeled in the
low Bow model to represent the greatest potential impact to DO suppression in the River due to point sources. This sensitivity analysis looked at the impact of DO at the
outfall for the point sources. The base model NPDES limits we between 5 mg/L to 6 mg/L for each point source. This sensitivity analysis looked at the impact ofvarying
point source DO by i20%from base model (point sources with DO between 44.8 mg/L and 6-7.2 mg/L). The results show varying the DO at NPDES outfalls impacts DO
profile by a maximum of 12%a expectedly, at the point ofthe highest flow point source discharge (News, River W WTP is modeled at permit limit of 75 MGD).
SENSITIVITY OF QUAL2K-PREDICTED NEUSE RIVER DO TO POINT SOURCE DO
'Nme L Only majmtre.taml (M.25 MGOIand molar NPOES sourta are identlRed an the min. Mae mbar swim are included from, QUAISK models.
•Ned. 2: NPOES Pram sourte Blum trs are modeled atsummer nuid..m dardivAarge trade, unlessotlunwe rued.
- -- - -- 10.00
• Point Source DO @ NPDES limit (ease)
• • Point Source DO-20%NPDES Limit
-- • Paint Source DO-20%NPDES Limit - 9.00
• •AMS Data laid 2009-2018
• • • • • AMS Data Avg: 20092018
7.00
E
• • - 6.00 p
• c
• 666j6.6• 5.00 �
0
Crabtree GceL Little Creek WWTP(NPDES)I • 4.00 O
Neuse P-er WWTP IN w'on CountyP P Le=geam El,tnc Plant INPDESI
Smeh Creek W WYP Smithfield WTP 3.00
Poplar Creek
5m1h Creek Harris Creek Central Johnston County Reg,ona!
Per', Branch WWTF(NPDESI Goldsboro WRF (NPDES) 200
Mocau�� Creel.
Am," Gee! -onf: Creel
Walnm Creek - Fall,og Creek 100
Poleca[NrancM1 - -
91-1 Creek Mill Creek Little River
-
--y Y act- am • u a 1 6 "'06 as e a 0.00
18000 VODO 160-00 150.00 140.00 130,00 120.00 1100D 100.00 90,00 80.00 70.00 60.00 5000 4000 10.00 2000 10,00 0,00
Neuse River Location. Distance from Model Endpoint in Goldsboro (km)
gDAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Point Source
DO LWNPDES
Limit (Base)
Point Source
DO-20%
NPDES Umit
Point Source
DO ♦20%
NPDES Limit
x(km)
DO(mgOZL)
DO(mgO21Q
DO(mg0&L)
166.83
5.94
5.94
5.94
166.64
5.97
5,97
5.98
166.981
5.98
5.98
5.98
165.41
5.99
5.99
5.99
164.85
6.It
6.00
6.00
164.281
6.011
6.001
6.01
163.721
6.011
6.011
6.01
(1) (2)
Difference DNlerence
from from
Baseline Baseline
% %
0.0% 0.0%
0.0% 0.0%
0.0% 0.0%
0.0% 0.0%
0.0% 0.0%
0.0% 0.0%
9 Dewberry SENSITIVITY CASE: Point Source DO Page 2 of83

gDAL2K Distance-
Upstream of Goldshoro
(Model Endpoint)
Low Flow,
LCWBF 2.5 MGD
Model
Baseline
(1)
(2)
Point Source
DO @ NPDES
Limit (Base)
Point Source
DO -20%
NPDES Limit
Point Source
00 -20%
NPDES Limit
x(km)
DO(m9O21Q
DO(mgO2Q
DO(m9O21L)
163.15
602
6.02
602
162.59
6.02
6.02
6.62
162.02
6.03
6.03
6.03
161.46
6.03
6.03
6.03
161.10
6.05
6.05
6.05
160.94
6.06
6.06
6.06
160.79
6.07
6.07
6.67
160.63
6.08
6.08
6.08
160.47
6.09
6.09
6.09
160.32
6.11
6.11
6.11
160.16
6.12
6.12
6.12
160.00
6.12
6A2
6.12
159.85
6.13
6.131
6.13
169.69
6.14
6.14
6.14
159.34
6.06
6.06
6.06
158.80
5.82
5.69
5.95
168.26
5.76
5.64
5.87
157.71
5.70
5.61
5.60
157.17
5.66
5.58
5.74
166.63
5.62
5.55
5.70
156.09
5.59
5.53
5.66
155.64
5.57
5.52
5.62
166.00
5.55
5,511
5.60
164.46
5.54
5.50
5.58
153.94
5.54
5.50
5.57
153.45
5.54
5.51
S.S7
152.97
5.54
5.51
5.57
162.48
5.54
5.51
5.56
161.99
5.54
5.52
5.56
151.60
5.54
5.52
5.56
151.01
5.55
5.53
5.56
150.62
5.56
5.54
5.57
160.03
5.56
5.541
5.57
149.64
5.56
5.55
5.58
149.09
5.65
5.63
5.66
148.66
5.72
5.71
5.73
148.24
5.78
5.77
5.78
147.82
5.83
5.82
5.84
147.39
5.87
5.87
5.88
146.97
5.91
5.91
5.92
146.55
5.95
5.94
5.95
146.12
5.98
5.97
5.98
145.70
6.00
6.001
6.01
145.28
6.02
6.02
6.03
144.95
6.07
6.06
6.07
144.73
6.11
6.10
6.11
144.61
6.14
6.14
6.14
144.29
6.17
6.17
6.17
144.07
6.20
6.20
6.20
143.85
6.23
6.23
6.23
143.63
6.25
6.25
6.25
143.41
6.27
6.27
6.27
143.19
6.29
6.29
6.29
142.97
6.31
6.30
6.31
142.66
6.33
6.32
6.33
142.26
6.34
6.34
6.35
141.86
6.36
6.36
6.36
141.46
6.37
6.37
6.37
141.06
6.38
6.38
6.39
140.66
6.39
6.39
6.40
140.26
6.40
6.40
6.40
Dewberry SENSITIVITY CASE: Point Source DO Page 3 of83

ODAL2K Distance-
Upstream of Goldsboro
(Model Endpoint(
Low Flow,
1.CWRF 2.5 MGD
Model
Baseline
(1(
(2(
Point Source
DO @ NPOES
Limit (Base(
Point Source
DO -20%
NPDES Limit
Point Source
00-20%
NPDES Limit
x(km)
DOfmg021L)
DO(mgOW.)
DO(mg02/l�
139.86
6.41
6.41
6.41
139.46
6.42
6.42
6.42
139.06
6.42
6.42
6.43
138.77
6.42
6.421
6.42
138.69
6.42
6.42
6.42
138.42
6.42
6.42
6.42
138.24
6.42
6.42
6.42
138.06
6.42
6.42
6.42
137.88
6.42
6.42
6.42
137.70
6.42
6.42
6.42
137.62
6.42
6.42
6.42
137.34
6.42
6.42
6.42
137.16
6.42
6.42
6.42
136.85
6.41
6.411
6.41
136.40
6.40
6.40
6.40
135.95
6.39
6.39
6.40
135.50
6.39
6.39
6.39
135.05
6.39
6.38
6.39
134.60
6.38
6.38
6.38
134.16
6.38
6.38
6.38
133.69
6.38
6.39
6.38
133.24
6.37
6.37
6.37
132.79
6.37
6.37
6.37
132.34
6.31
6.311
6.31
131.89
6.26
6.25
6.26
131.44
6.21
6.21
6.21
130.99
6.16
6.16
6.16
130.64
6.13
6.12
6.23
130.08
6.09
6.09
6.09
129.63
6.06
6.06
6.06
129.18
6.03
6.03
6.03
128.73
6.00
6.00
6.00
128.28
5.28
4.67
5.9E
127.96
5.25
4.651
5.95
127.75
5.21
4.62
5.80
127.56
5.18
4.60
5.76
127.34
5.14
4.57
S.72
127.14
5.11
4.55
5.62
126.94
5.08
4.52
5.63
126.74
5.05
4.50
5.59
126.53
5.01
4.48
5.55
126.33
4.98
4.46
5.51
126.13
4.95
4.44
5.48
126.78
4.93
4.441
5.43
126.30
4.92
4.45
5.38
124.81
4.90
4.46
5.34
124.33
4.88
4.47
5.30
123.84
4.87
4.47
5.27
123.36
4.86
4.48
5.23
122.87
4.85
4.49
5.20
122.39
4.84
4.50
5.18
121.90
4.83
4.51
5.15
121.42
4.82
4.52
5.12
121.08
4.82
4.531
5.12
120.88
4.82
4.53
5.10
120.68
4.81
4.54
5.09
120.48
4.81
4.54
5.08
120.28
4.80
4.54
5.07
120.09
4.80
4.55
5.06
119.89
4.80
4.S5
5.05
119.69
4.79
4.56
5.04
i' DewbeIry- SENSITIVITY CASE: Point Source DO
Page 4 of83

gllAL2K Dirtance-
Upstream of Goldshoro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Point Source
DO @ NPDES
Limit (Base)
Paint Source
DO -20%
NPDES Limit
Paint Source
DO a20%
NPDES Limit
x(gm)
DO(mgO21Q
DO(mgO21Q
DO(mgOYL)
119.49
4.79
4.56
5.03
119.29
4.79
4.56
5.02
118.95
4.78
4.57
5.00
118.47
4.78
4.58
4.98
117.99
4.78
4.59
4.96
117.51
4.77
4.60
4.95
11Z03
4.77
4.61
4.94
116.55
4.77
4.62
4.92
716.06
4.77
4.63
4.92
116.58
4.78
4.65
4.91
115.10
4.78
4.66
4.90
114.62
4.80
4.67
4.94
114.19
4.87
4.74
5.00
113.82
4.92
4.80
5.05
113.44
4.98
4.86
5.09
113.07
5.03
4.92
5.13
112.69
5.07
4.97
5.17
112.32
5.12
5.03
5.21
111.94
5.16
5.07
5.25
111.61
5.20
5.12
5.28
111.19
5.24
5.16
5,31
110.82
5.27
5.20
5.35
110.38
5.28
5.211
5.34
109.86
5.28
5.22
5.34
109.35
5.28
5.23
5.34
108.94
5.29
5.23
5.34
108.33
5.29
5,24
5.34
107.82
5.30
5.25
5.35
107.31
5.31
5.26
5.35
106.80
5.31
5.27
5.35
106.28
5.32
5.28
5.36
105.77
5.33
5.29
5.36
105.38
5.32
5.281
5.35
105.11
5.31
5.27
5.34
104.84
5.30
5.26
5.33
104.67
5.29
5.26
5.32
104.30
5.28
5.25
5.31
104.03
5.27
5.24
5.30
103.76
5.26
5.24
5.29
103.48
5.26
5.23
5.28
103.21
5.25
5.23
5.28
102.94
5.25
5.22
5.27
102.63
5.22
5.191
5.24
101.97
5.19
5.17
5.21
101A2
5.17
SAS
5.19
100.86
5.15
5.13
5.17
100.31
5.13
5.12
5.15
99.75
5.12
5.10
5.14
99.19
5.11
5.09
5.12
98.64
5.10
5.08
5.21
98.08
5.09
5.08
5.30
97.53
5.09
5.07
5.10
96.97
5.13
5.111
5.14
96.42
5.16
5.15
5.18
96.87
5.20
5.19
5.21
96.31
5.23
5.22
5.24
94.76
5.27
5.26
5.27
94.21
5.30
5.29
5.30
93.66
5.32
5.31
5.33
93.10
5.35
5.34
5.36
92.65
5.38
5.37
5.38
11 Dewberry SENSITIVITY CASE: Point Source DO Page 5 of83

QDAL2K Dirtance-
Upstream at Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Point Source
DO@NPDES
Limit (Base)
Point Source
DO-20%
NPDES Limit
Point Source
DO ♦20%
NPDES Limit
x(km)
DO(mgO21L)
DO(mgO2JL)
DO(mgO2JLJ
92.00
5.41
5.41
5.42
91.56
5.35
5.34
5.36
91.22
5.29
5.28
5.29
90.88
5.22
5.221
5.23
90.65
5.17
5.16
5.17
90.21
5.11
5.10
5.12
89.88
5.05
5.05
5.06
89.54
5.00
4.99
5.01
89.21
4.95
4.94
4.96
88.87
4.90
4.90
4.91
88.64
4.86
4.85
4.86
88.26
4.92
4.91
4.92
88.06
4.92
4.91
4.92
87.84
4.92
4.921
4.93
87.62
4.93
4.92
4.93
87.41
4.93
4.92
4.94
87.19
4.93
4.93
4.94
86.98
4.94
4.93
4.94
86.77
5.04
4.91
5.16
86.56
5.03
4.91
5.15
86.34
5.02
4.91
5.14
86.15
5.01
4.90
5.13
85.99
5.00
4.89
5.11
85.83
4.99
4.881
5.10
85.67
4.98
4.87
5.09
85.51
4.97
4.86
5.08
86.36
4.96
4.85
5.06
85.19
4.95
4.84
5.05
85.03
4.94
4.83
5.04
84.87
4.93
4.83
5.03
84.71
4.92
4.82
5.02
84,28
4.91
4.81
5.00
03.58
4.88
4.79
4.97
82.83
4.86
4.77
4.94
82.18
4.84
4.76
4.92
81.48
4.82
4.74
4.90
80.79
4.80
4.73
4.88
80.09
4.79
4.71
4.86
79.39
4.77
4.70
4.84
78.69
4.76
4.70
4.83
77.99
4.75
4.69
4.81
77.18
4.73
4.67
4.78
76.26
4.70
4.65
4.76
76.34
4.69
4.631
4.74
74.41
4.67
4.62
4.72
73.49
4.66
4.62
4.70
72.67
4.65
4.61
4.69
71.66
4.64
4.60
4.68
70.73
4.64
4.60
4.68
69.80
4.64
4.60
4.67
68.88
4.64
4.61
4.67
67.36
4.71
4.68
4.74
65.26
4.77
4.75
4.80
63.14
4.83
4.811
4.85
61.03
4.89
4.87
4.91
58.92
4.94
4.93
4.96
66.80
5.00
4.98A5.19
54.69
5.05
5.03
52.58
5.30
5.08
60.47
5.14
5.13
48.36
5.19
5.18
fp Dewberry SENSITIVITY CASE: Point Source 0O Page 6of83

QUAL2N Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Point Source
DO @ NPDES
Limit(Base)
Point Source
DO -20%
NPDES Limit
Point Source
DO+20%
NPDES Limit
x(km)
DO(mgO21L)
D0(mgO21L)
DO(mgO21L)
46.92
5.19
5.18
5.19
46.16
5.19
5.18
5.19
45.40
5.19
5.18
5.19
44.64
5.19
5.18
5.19
43.88
5.19
5.18
5.19
43.13
5.19
5.18
5.19
42.37
5.19
5.18
5.20
41.61
5.19
5.18
5.20
40.85
5.19
5.19
5.20
40.09
5.20
5.19
5.20
39.60
5.12
5.11
5.12
39.38
5.12
5.11
5.12
39.17
5.12
5.111
5.12
38.95
5.12
5.11
5.12
38.73
5.12
5.11
5.12
33.62
5.12
5.11
5.12
38.30
5.12
5.11
5.12
38.08
5.12
5.11
5.12
37.87
5.12
5.11
5.12
37.65
5.12
5.11
5.12
37A2
5.15
5.15
5.26
37.18
5.18
5.18
5.19
36.94
5.22
5.211
5.22
36.70
5.25
5.24
5.25
36.46
5.28
5.27
5.28
36.22
5.30
5.30
5.31
36.98
5.33
5.33
5.34
35.74
5.36
5.35
5.36
35.50
5.38
5.38
5.39
36.26
5.41
5.40
5.41
34.86
5.37
5.36
5.37
34.30
5.39
5.38
5.39
33.73
5.40
5.401
5.41
33.17
5.42
5.42
5.43
32.61
5.44
5.44
SA4
32.04
5.46
5.45
5.46
31.48
5.47
5.47
5.47
30.92
5.48
5.48
5.49
30.35
5.50
5.50
5.50
29.79
5.51
5.51
5.51
28.48
5.46
5.45
5.48
26.42
5.44
5.43
5.45
24.36
5.42
5.411
5.43
22.30
5.41
SAO
5.42
20.24
5.40
5.40
5.41
18.18
5.41
5.40
5.41
16.12
5.41
5.40
5.41
14.06
5.42
5.41
5.42
12.00
5.42
5.42
5.43
9.94
5.44
5.43
5.44
8.46
SAS
SA4
5.45
7.67
5.51
5.50
5.51
6.68
5.56
5.561
5.56
6.79
5.61
5.60
5.61
4.90
5.65
5.65
5.65
4.01
5.69
5.69
5.69
3.12
5.72
5.72
5.73
2.23
5.76
5.75
5.76
1.34
5.79
5.78
5.79
0.45
5.72
5.65
5.80
0.00
5.72
5.65
5.80
'3 DewberrySENSITIVITY CASE: Point Source DO Page 7 of83

QUAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
it)
(Z)
Point Source
DO @ NPDES
Limit (Basel
Point Source
DO -20%
NPDES Limit
Point Source
DO ♦20%
NPDES Limit
x(km)
DO(mgO7/LJ
DO(mgO2/L)
DO(mgOYL)
(1) (2)
Difference Difference
from from
Baseline Baseline
MIN DIFF -11.6% 0.0%
MAX DIFF 0.0% 11.6%
?;? Dewberry SENSITIVITY CASE: Point Source DO Page 8 of83

Allitills
Al
sleek
All-\
r k
Oak
AlM\
dam\
sleal\
all
•Kos.
r�
NEUSE RIVER QUAL2K MODEL- SENSITIVITY ANALYSIS
PROJECT: NEUSE RIVER QUAL2K MODEL FOR TOWN OF CLAYTON NPDES
CLIENT: TOWN OF CLAYTON
LOCATION: 1000 Durham Street Extension; Clayton, NC 27528
PROJECT NUMBER: 50118315
DATE: 07/15/2020
This is a summary of Neuse Rive QUAL2K model sensitivity as follows:
Base Model Case: Low Flaw Model, Daily Maximum NPDES discharge, LCWRF @ 2.5 MGD
Sensitivity Input parameter: Diffuse Source DO input assumption
Output parameter(s): Noose River DO profile (mg/L)
DISCUSSION/RESULTS: There are assumptions of diffuse Bow into each of the 31 reaches ofthe QUAL2K model from Falls Data to Goldsbom. Water quality ofthe
diffuse Bow was largely unknown; therefore, assumptions were made in the base model scenario. The sensitivity analysis looked at DO from 3 col to 7 mg/L, 140%from
the baseline 5 col input. The results show varying the DO of diffuse sources impacts DO profile less than 2%, and s; expected, mostly in sections ofthe river where
diffuse source flow is assumed the highest (reach 19 between 92-98 km).
SENSITIVITY OF QUAL2K-PREDICTED NEUSE RIVER DO TO DIFFUSE SOURCE DISSOLVED OXYGEN
'Nate l: Only major Mbutaries(a0,25 variant major NPDES sourcesa identified onthechart. Moernmarmurces areincluded inlhemlAuKmndels.
'Note 2: NPDES Pont source dischargers are modeled at summer maximum daily discharge limits, unless oth verse noted.
__ - _ - 10.00
i
Diffuse Source @ 5 mg/L
•
Modell
._ ____
- -_
-
•Diffuse Sources@7mg/-
9.00
•
•
• Diffuse Saurces @ 3 hil•AMS
JDO
Oata Min: 2009-201•
AM 5 Data Avg: 2009-201-
7.00
��
•
-
6.00
•
c
re
ase
\VIM
-
5.00 v
••••N•
Fib
Gabtre¢Cre¢k tittle
Creek WWTP(NPDES)
•
-
4.00 O
rveum Blue: \V\NTP (NPDES)
Johnston'County WTPI
Lee Steam Electric Plant (NPDES)
SmithCeek WWTP
Smuhf Id WTF
3,00
°oRlar Creel.
SmisM1Creek Harris Creek
I
C trallohnston County
Rsaleval
Po -pia Banch'
I- WWTF(NPDES)
6ldsb ro WRF (NPDES)
2.00
M
eek
Mark, C-
:
Swift C'ee(
Walnut Creek
FailingC k.
1.00
P local Branch
ga,kC I. MIllCreek
- :ttle Bluer
--- W - �- 90 tV b --P
d(k
G
lY O -
ODD
180.00 170.00 160.00 150.00 140.00 13ODD 120.00
110.00 100,00 90.00 80.00
70.00 GOOD 5D.00
40.00 3ODD 20.00 10.00 0.00
Neese River Location- Distance from Model Endpoint in Goldsboro (km)
QUAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Diffuse
Source @ 5
mg/L (Base
Model)
Diffuse
Sources @ 7
Digit. DO
Diffuse
Sources @ 3
mg/L 00
X(km)
DO(rngdO )
DO(mg0l
DO(mgOl
166.83
5A4
5.94
5.94
166.64
5.97
5,97
5.97
165.98
5.98
5.98
5.98
166.41
5.99
5.991
5.99
164.85
6.00
6.00
6.00
164.28
6.01
6.01
6.01
163.72
6.01
6.01
6.01
163.15
6.02
1.02
6.02
162.59
6.02
6.02
6.02
Dewberry
SENSITIVITY CASE: Diffuse Source DO
7/20/2020

QDAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Diffuse
Source @ 5
mg/L(Base
Model)
Diffuse
Sources @ 7
mg/L DO
Diffuse
Sources @ 3
mg/L DO
x(km)
DO(mgO21L)
DO(mgO21L)
DO(mgO21y
162.02
6.03
6.03
6.03
161.46
6.03
6.03
6.03
161.10
6.05
6.05
6.05
160.94
6.06
6.061
6.06
160.79
6.07
6.07
6.07
160.63
6.08
6.08
6.08
160.47
6.09
6.09
6.09
160.32
6.11
6.11
6.10
160.16
6.12
6.12
6.11
160.00
6.12
6.13
6.12
159.85
6.13
6.13
6.13
169.69
6.14
6.14
6.14
159.34
6.06
6.06
6.06
168.80
5.82
5.821
5.82
158.26
5.76
5.76
5.76
157.71
5.70
5.70
5.70
157.17
5.66
5.66
5.66
156.63
5.62
5.62
5.62
166.09
5.59
5.59
5.59
155.64
5.57
5.57
5.57
165.00
5.55
5.55
5.55
164.46
5.54
5.54
5.54
163.94
5.54
5.54
5.54
163.45
5.54
5.5411
5.54
162.97
5.54
5.54
5.54
152.48
5.54
5.54
5.54
151.99
5.54
5.54
5.54
161.60
5.54
5.54
5.54
151.01
5.55
5.55
5.55
160.62
5.56
5.56
5.56
150.03
5.56
5.56
5.56
149.64
5.56
5.56
5.56
149.09
5.65
5.65
5.65
148.66
5.72
5.72
5.72
148.24
5.78
5.78
5.78
147.82
5.83
5.83
5.83
147.39
5.87
5.87
5.87
146.97
5.91
5.91
5.91
146.55
5.95
5.95
5.95
146.12
5.98
5.98
5.98
146.70
6.00
6.00
6.00
145.28
6.02
6.02
6.02
144.96
6.07
6.07
6.07
144.73
6.11
6.111
6.11
144.61
6.14
6.14
6.14
144.29
6.17
6.17
6.17
144.07
6.20
6.20
6.20
143.85
6.23
6.23
6.23
143.63
6.25
6.25
6.25
143.41
6.27
6.27
6.27
143.19
6.29
6.29
6.29
142.97
6.31
6.31
6.31
142.66
6.33
6.33
6.33
142.26
6.34
6.341
6.34
141.86
6.36
6.36
6.36
141.46
6.37
6.37
6.37
141.061
6.38
6.38
6.38
140.66
6.39
6.39
6.39
140.26
6.40
6.40
6.40
139.861
6.41
6.41
6.41
139.461
6.42
6.42
6.42
%:S DQWbQ1'TY' SENSITIVITY CASE: Diffuse Source DO 7/20/2020

ace►
O,UALZK Distance-
Upstream a1 Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Diffuse
Source @5
mg/L (Base
Model)
Diffuse
Sources @ 7
mg/L DO
Diffuse
Sources @ 3
mg/L DO
x(km)
DO(mg021L)
DO(mg024.)
DO(mg021L)
139.06
6.42
6.43
6.42
138.77
6.42
6.42
6.42
138.69
6.42
6.42
6.42
138.42
6.42
6.42
6.42
138.2.4
6.42
6.42
6.42
138.06
6.42
6.42
6.42
137.88
6.42
6.42
6.42
137.70
6.42
6.42
6.42
137.62
6.42
6.42
6.42
137.34
6.42
6.42
6.42
137.16
6.42
6.42
6.42
136.85
6.42
6.41
6.41
136.40
6.40
6.40
6.40
135.95
6.39
6.391
6.39
135.60
6.39
6.39
6.39
135.05
6.39
6.39
6.38
134.60
6.38
6.38
6.38
134.15
6.38
6.38
6.38
133.69
6.38
6.38
6.38
133.24
6.37
6.37
6.37
132.79
6.37
6.37
6.37
132.34
6.31
6.31
6.31
131.89
6.26
6.26
6.25
131.44
6.21
6.21
6.21
130.99
6.16
6.16
6.16
130.64
6.13
6.13
6.13
130.08
6.09
6.09
6.09
129.63
6.06
6.06
6.06
129.18
6.03
6.03
6.03
123.13
6.00
6.00
6.00
128.28
5.28
5.28
5.28
127.95
5.25
5.25
5.25
127.75
5.21
5111
5.21
127.55
5.18
5.18
5.18
127.34
5.14
5.14
5.14
127.14
5.11
5.11
5.11
126.94
5.08
5.08
5.08
126.74
5.05
5.05
5.05
126.53
5.01
5.01
5.01
126.33
4.98
4.98
4.98
126.13
4.95
4.95
4.95
126.78
4.93
4.93
4.93
126.30
4.92
4.921
4.92
124.81
4.90
4.90
4.90
124.33
4.88
4.88
4.88
123.84
4.87
4.87
4.87
123.36
4.86
4.86
4.86
122.87
4.85
4.85
4.85
122.39
4.84
4.84
4.84
121.90
4.83
4.83
4.83
121.42
4.82
4.82
4.82
121.06
4.82
4.82
4.82
120.88
4.82
4.821
4.82
120.68
4.81
4.81
4.81
120.48
4.81
4.81
4.81
120.28
4.80
4.80
4.80
120.09
4.80
4.80
4.80
119.89
4.80
4.80
4.80
119.69
4.79
4.80
4.79
119.49
4.79
4.79
4.79
119.29
4.79
4.79
4.79
gi Dewberry SENSITIVITY CASE: Diffuse Source DO 7/20/2020

ODAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWBF 2.5 MGD
Model
Baseline
(1)
(2)
Diffuse
Source @ 5
mg/L (Base
Model)
Diffuse
Sources @ 7
mg/L DO
Diffuse
Sources @ 3
mg/L DO
x(km)
DO(m902/L)
DO(m902/L)
DO(mgO2Q
118.96
4.78
4.78
4.78
118.47
4.78
4.78
4.78
117.99
4.78
4.78
4.78
117.61
4.77
4.77
4.77
117.03
4.77
4.77
4.77
116.66
4.77
4.77
4.77
116.06
4.77
4.77
4.77
115.58
4.78
4.78
4.78
115.10
4.78
4.78
4.78
114.62
4.80
4.80
4.80
114.19
4.87
4.87
4.86
113.82
4.92
4.93
4.92
113.44
4.98
4.991
4.97
113.07
5.03
5.04
5.02
112.69
5.07
5.09
5.06
112.32
5.12
5.13
5.10
111.94
5.16
5.18
5.14
111.57
5.20
5.22
5.18
111.19
5.24
5.26
5.22
110.62
5.27
5.30
5.25
110.38
5.28
5.30
5.25
109.86
5.28
5.31
5.25
109.36
5.28
5.311
5.26
108.84
5.29
5.32
5.26
108.33
5.29
5.32
5.26
107.82
5.30
5.33
5.27
107.31
5.31
5.34
5.27
106.80
5.31
5.34
5.28
106.28
5.32
5.35
5.29
106.77
5.33
5.36
5.29
106.38
5.32
5.35
5.28
106.11
5.31
5.34
S.27
104.84
5.30
5.331
5.26
104.57
5.29
5.33
5.25
104.30
5.28
5.32
5.24
104.03
5.27
5.31
5.23
103.76
5.26
5.31
5.22
103.48
5.26
5.30
5.21
103.21
5.25
S.30
5.20
102.94
5.25
5.30
5.20
102.63
5.22
5.26
5.17
101.97
5.19
5.23
5.15
101.42
5.17
5.211
5.13
100.86
5.15
SAS
5.11
100.31
5.13
5.17
5.10
99.76
5.12
SAS
5.09
99.19
5.11
5.14
5.08
98.64
5.10
5.12
5.07
98.08
5.09
5.11
5.07
97.53
5.09
5.11
5.06
96.97
5.13
5.16
5.10
96.42
5.16
5.20
5.13
95.87
5.20
5.241
5.15
95.31
5.23
5.29
5.18
94.76
5.27
5.32
5.21
94.21
5.30
5.36
5.23
93.66
5.32
5.39
5.26
93.10
5.35
5.42
5.28
92.66
5.38
5.45
5.30
92.00
5.41
5.49
5.34
91.66
5.35
5.43
5.27
§j? Dewberry -
SENSITIVITY CASE: Diffuse Source DO
n
l�
7/20/2020
I"4
I^

QDAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Diffuse
Source @ 5
mg/L (Base
Model)
Diffuse
Sources @ 7
mg/L DO
Diffuse
Sources @ 3
mg/L DO
x(kM)
DO(mgO2/L)
DO(mgO2/L)
DO(mgO2/L)
91.22
5.29
5.36
5.21
90.88
5.22
5.30
5.15
90.66
5.17
5.24
5.09
90.21
5.11
5.181
5.04
89.88
5.05
5,121
4.99
89.54
5.00
5.07
4.94
89.21
4.95
5.01
4.89
88.87
4.90
4.96
4:84
88.64
4.86
4.92
4.80
88.26
4.92
4,97
4.86
88.05
4.92
4.97
4.86
87.84
4.92
4.98
4.87
87.62
4.93
4.98
4.87
87.41
4.93
4.98
4.88
87.19
4.93
4.981
4.88
86.98
4.94
4.99
4.89
86.77
5.04
5.08
4.99
86.65
5.03
5.07
4.99
86.34
5.02
5.07
4.98
86.15
5.01
5.05
4.97
86.99
5.00
5.04
4.96
86.83
4.99
5.03
4.95
85.67
4.98
5.02
4.94
86.51
4.97
5.01
4.93
86.36
4.96
5.001
4.92
86.19
4.95
4.99
4.91
86.03
4.94
4.97
4.9E
84.87
4.93
4.96
4.89
84.71
4.92
4.95
4.88
84.28
4.91
4.94
4.88
83.68
4.88
4.91
4.85
82.88
4.86
4.89
4.83
82.18
4.84
4.87
4.81
81.48
4.82
4.85
4.79
80.79
4.80
4.831
4.77
80.09
4.79
4.81
4.76
79.39
4.77
4.80
4.75
78.69
4.76
4.78
4.74
77.99
4.75
4.77
4.73
77.18
4.73
4.75
4.70
76.26
4.70
4.72
4.68
76.34
4.69
4.70
4.67
74.41
4.67
4.69
4.65
73.49
4.66
4.68
4.64
72.67
4.65
4.671
4.64
71.65
4.64
4.66
4.63
70.73
4.64
4.65
4.63
69.80
4.64
4.65
4.63
68.88
4.64
4.65
4.63
67.36
4.71
4.72
4.70
66.26
4.77
4.78
4.76
63.14
4.83
4.84
4.82
61.03
4.89
4.89
4.88
68.92
4.94
4.95
4.94
66.80
5.001
5.001
4.99
54.69
5.05
5.05
5.04
52.58
5.10
5.10
5D9
60.47
5.14
5.14
5.14
48.36
5.19
5.19
5.18
46.92
5.19
5.19
5.18
46.16
5.19
5.19
5.18
'i'>' Dewberry SENSITIVITY CASE: Diffuse Source OO 7/20/2020

gDAL2K Dirtance-
Upstream of Goldshoro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Diffuse
Source @ 5
mg/L(Base
Model)
Diffuse
Sources @ 7
mg/L DO
Diffuse
Sources @ 3
mg/L DO
x(km)
DO(mgO2A)
DO(mgOWL)
DO(mgO2/L)
45.40
5.19
5.19
5.18
44.64
5.19
5.19
5.18
43.88
5.19
5.19
5.18
43.13
5.19
5.19
5.19
42.37
5.19
5.19
5.19
41.61
5.19
5.19
5.19
40.86
5.19
5.20
5.19
40.09
5.20
5.20
5.19
39.60
5.12
5.12
5.11
39.38
- 5.12
5.12
5.11
39.17
5.12
5.12
5.11
38.96
5.12
5.12
5,11
38.73
5.12
5.121
5.11
38.52
5.12
5.121
5.11
38.30
5.12
5.12
5.12
38.08
5.12
5:12
5.12
37.87
5.12
5.12
5.12
37.65
5.12
5.12
5.12
37.42
5.15
5.15
5.15
37.18
5.18
5.19
5.18
36.94
5.22
5.22
5.21
36.70
5.25
5.25
5.24
36.46
5.28
5.28
5.27
36.22
5.30
5.311
5.30
35.98
5.33
5.33
5.33
36.74
5.36
5.36
5.36
35.50
5.38
5.38
5.38
35.26
5.41
5.41
5.40
34.86
5.37
5.37
5.37
34.30
5.39
5.39
5.38
33.73
5.40
5.41
5.40
33.17
5.42
5.42
5.42
32.61
5.44
5.44
5.44
32.04
5.46
5.461
5.45
31.48
5.47
5.47
5.47
30.92
5.48
5.49
5.48
30.35
5.50
5.50
5.50
29.79
5.51
5.51
5.51
28.48
5.46
5,47
5.46
26.42
5.44
5.44
5.44
24.36
5.42
5.42
5.42
22.30
5.41
5.41
5.41
20.24
5.40
5,41
5.40
18.18
5.41
5.411
5.40
16.12
5.41
5.41
5.41
14.06
5.42
5.42
5.42
12.00
5.42
5.43
5.42
9.94
5.44
5.44
5.43
8.46
5.45
5.45
5.45
7.67
5.51
5.51
5.51
6.68
5.56
5.56
5.56
6.79
5.61
5.61
5.61
4.90
5.65
5.65
5.65
4.01
5.69
5.691
5.69
3.12
5.72
5.72
5.72
2.23
5.76
5.76
5.76
1.34
5.79
5.79
5.79
0.46
5.72
5.72
5.72
0.001
5.72
5.72
5.72
MIN DIFF
0.0% -1.4%
r�
SENSITIVITY CASE: Diffuse Source DO
7/20/2020

Low Flow,
LCWRF 2.S MGD
Model
Baseline
(1)
(2)
Diffuse
QUAL2K Distance-
Source @ 5
Diffuse
Diffuse
Upstream of Goldsboro
mg/L (Base
Sources @ 7
Sources @ 3
(Model Endpoint)
Model)
mg/L DO
mg/L DO
x(km)
DO(M9021L)
I DO(M90211-)
DO(mgOVQ
(1) (2)
Difference Difference
Gom fra
aazeline aazeline
MAXDIFF 1456 0-0%
r� Dewberry SENSITIVITY CASE: Diffuse Source DO 7/20/2020

NEUSE RIVER QUAL2K MODEL- SENSITIVITY ANALYSIS
PROJECT: NEUSE RIVER QUAL2K MODEL FOR TOWN OF CLAYTON NPDES
CLIENT: TOWN OF CLAYTON
LOCATION: 1000 Dmham Street Extension; Clayton, NC 27528
PROJECT NUMBER: 50118315
DATE: 07/152020
DESCRIPTION:
Base Model Case: Low Flow Model, Daily Maxim= NPDES discharge, LC WRF @ 2.5 MOD
Sensitivity Input parameter: Diffuse Source BOD input assumption
Output pammeter(s): Neuse River DO profile Fail
)ISCUSSION/RESULTS: There are assumptions ofdiffuse flow into each ofthe 31 reaches ofthe QUAL2K model from Falls Dam to Goldsboro. Water quality ofthe
Effuse flow was largely unknown; therefore, assumptions were shade in the base model scenario. The sensitivity analysis looked at BOO from 1.5 mg/L to 5 mg/L, t55%
tom the baseline 3.2 mg/L input. The results show varying the BOD ofdiflus, sources impacts DO profile less than 0.5%, and as expected, mostly in sections of the river
,here difil anurce. fl Va nre. i sit. h4oh-1 Leu,M1 19 heha- 97-9R 4..O
SENSITIVITY OF QUAL2K-PREDICTED NEUSE RIVER DO TO DIFFUSE SOURCE SOD
"Note 1: only major tdbutariis fA.25 MGD)and major NPDES souses are managed on the than. More minor sources are included In the Carl models.
•Note 2: NPDES D.in' sourm dischargers are modeled at summer maximum dairy d1wheirge limae, unless otherwise noted.
10,00
Diffuse Some, @ 3.24 ml
• BOO(Base Modell
-----_'--�- - •Diffum Source@5mg/L80D 9.00
• I
• • • • • Diffuse Source @ 1.5 mg/L BOD
ago
• • AMS Data Min: 2009-2018
• AM S Data Avg: 2009-2018 2.00 ^
• " ____ - - _ ___ --_ 600
is
VVV c
•0 111•�
•••••••• 5.00 G
•
Crabtree Creek ---- - an 4:00 m
- Little Creek WWPOES FP(N
Neuse River WWTP(RITES) Johnston County%VTP Lee Steam Electri<Dlant(NPOES)
Smith Creek W WTP Smithfield WTP 3.00
Smith Creek r•orris Creek °oplar Creek� ..en:ral Johnston County Regional
Poplar Branch WWTF(Nli Goldsboro WRF(NPDES) 2.00
' �M sin Creek
M deCreek SviftCraek
- Widii Creek 1
Polecat Bra h Falling Creel: 1.00
1
I SlacL C, eF Mill Creek Little River) \
' ��� 4 • - -- -oY4 0.00
180.00 170.00 1W.00 15000 140.00 130.00 120,00 110.00 100,00 9000 80.00 70.00 60,00 5000 One 3000 20.00 10.00 0.00
Neuse River Location- Distance from Model Endpoint in Goldsboro (km)
QUAL2K Distance-
Upstream of Goldsboro
(Model Endpoint(
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2(
Diffuse
Source @
3.24 mg/L
BOD(Base
Model)
Diffuse
Source @ 5
mg/L BOD
Diffuse
Source @ 1.5
Fall BOO
X(km)
DO(mgO2/L)
DO(mgl
DO(mgO2/LJ
166.83
SA4
5,94
5,94
166.54
5.97
5.97
5.97
165.98
5.98
5.98
5.98
166.41
5.99
5.99
5.99
164.85
6.00
6.00
6.06
164.28
6.01
6.01
6.01
163.72
6.01
6.01
6.01
163.16
6.02
6.02
6.02
=i Dewberry
Diffuse Source BOD
Alial
Page 16 of 83
/k
^i

gUAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Diffuse
Source @
3.24 mg/L
BOD(Base
Model)
Diffuse
Source @ 5
mg/L BOD
Diffuse
Source @ 1.5
mg/L BOD
x(km)
DO(m9O21)
DO(m9O2)Q
DO(mgO2)L)
162.59
6.02
6,02
6.02
162.02
6.03
6.03
6.03
161.46
6.03
6.03
6.03
161.10
6.05
6.05
6.05
160.94
6.06
6.06
6.06
160.79
6.07
6.07
6.07
160.63
6.08
6.08
6.08
160.47
6.09
6.09
6.09
160.32
6.11
6.11
6.11
160.16
6.12
6.12
6.12
160.00
6.12
6A2
6.12
159.85
6.13
6.131
6.13
169.69
6.14
6.14
6.14
159.34
6.06
6.06
6.06
158.80
5.82
5.82
5.82
158.26
5.78
5.76
5.76
167.71
5.70
5.70
5.70
167A7
5.66
5.66
5.66
156.63
5.62
5.62
5.62
156.09
5.59
5.59
5.59
156.64
5.57
5.57
5.57
166.00
5.55
5.55
5.55
154.46
5.54
5.54
5.54
153.94
5.54
5.54
5.54
153.46
5.54
5.54
5.54
152.97
5.54
5.54
5.54
152.48
5.54
5.54
5.54
151.99
5.54
5.54
5.54
151.60
5.54
5.54
5.54
151.01
5.55
5.55
5.55
160.62
5.56
5.56
5.56
150.03
5.56
5.56
5.56
149.54
5.56
5.56
5.56
149.09
5.65
5.65
5.65
148.66
5.72
5.72
5.72
148.24
5.78
5.78
5.78
147.82
5.83
5.83
5.83
147.39
5.87
5.871
5.87
146.97
5.91
5.91
5.91
146.66
5.95
5.95
5.95
146,12
5.98
5.98
5.98
146.70
6.00
6.00
6.00
146.28
6.02
6.02
6.02
144.96
6.07
6.07
6.07
144.73
6.11
6.11
6.11
144.61
6.14
6.14
6.14
144.29
6.17
6.17
6.17
144.07
6.20
6.201
6.20
WAS
6.23
6.23
6.23
143.63
6.25
6.25
6.25
143.41
6.27
6.27
6.27
143.19
6.29
6.29
6.29
142.97
6.32
6.31
6.31
142.66
6.33
6.33
6.33
142.26
6.34
6.34
6.34
141.86
6.36
6.36
6.36
141.46
6.211
6.37
6.37
141.06
6.38
6.38
6.38
140.66
6.391
6.391
6.39
140.26
6.401
6.401
6.40
Dewberry Diffuse Source BOD Page 17 of 83

QUAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD Model
Baseline
(1)
(2)
Diffuse
Source @
3.24 mg/L
BOD(Base
Model)
Diffuse
Source @ S
mg/L BOD
Diffuse
Source @ 1.5
mg/L BOD
x(km)
DO(mgO2/L)
DO(mgO21)
DO(mgO21)
139.86
6.41
6.41
6.41
139.46
6.42
6.42
6.42
139.06
6.42
6,421
6.42
138.77
6.42
6.42
6.42
138.69
6.42
6.42
6.42
138.42
6.42
6.42
6.42
138.24
6.42
6.42
6.42
138.06
6.42
6.42
6.42
137.88
6.42
6.42
6.42
137.70
6.42
6.42
6.42
137.62
6.42
6.42
6.42
137.34
6.42
6.42
6.42
137.16
6.42
6.421
6.42
136.85
6.41
6.41
6.41
136.40
6.40
6.40
6.40
135.95
6.39
6.39
6.39
135.60
6.39
6.39
6.39
136.05
6.39
6.39
6.39
134.60
6.38
6.38
6.38
134.16
6.38
6.38
6.38
133.69
6.38
6.38
6.38
133.24
6.37
6.37
6.37
132.79
6.37
6.371
6.37
132.34
6.32
6.31
6.31
131.89
6.26
6.26
6.26
131.44
6.21
6.21
6.21
130.99
6.16
6.16
6.16
130.64
6.13
6.13
6.13
130.08
6.09
6.09
6.09
129.63
6.06
6.06
6.06
129.18
6.03
6.03
6.03
128.73
6.00
6.00
6.00
128.28
5.28
5.281
5.28
127.95
5.25
5.25
5.25
127.75
5.21
5.21
5.21
127.55
5.18
5.18
5.18
127.34
5.14
5.14
5.14
127.14
5.11
5.11
5.11
126.94
5.08
5.08
5.08
126.74
5.05
5.05
SE
126,63
5.01
5.01
5.01
126.33
4.98
4.98
4.98
126.13
4.95
4.951
4.95
126.78
4.93
4.93
4.93
126.30
4.92
4.92
4.92
124.81
4.90
4.90
4.90
124.33
4.88
4.88
4.88
123.84
4.87
4.87
4.87
123.36
4.86
4.86
4.86
122.87
4.85
4.85
4.85
122.29
4.84
4.84
4.84
121.90
4.83
4.83
4.83
121.42
4.82
4.821
4.82
121.08
4.82
4.82
4.82
120.88
4.82
4.82
4.82
120.68
4.81
4.81
4.81
120.48
4.81
4.81
4.81
120.28
4.80
4.80
4.80
120.091
4.80
4.80
4.80
119.891
4.80
4.80
4.80
w-
<!' Dewberry Diffuse Source BOD
Page 18 of 83
r�

QUAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Diffuse
Source @
3.24 mg/L
BOD(Base
Model)
Diffuse
Source @ 5
mg/L BOD
Diffuse
Source @ 1.5
mg/L ODD
x(km)
DO(mgO2/L)
DO(m9O21L)
DO(m902/1)
119.69
4.79
4.79
4.80
119.49
4.79
4.79
4.79
119.29
4.79
4.79
4.79
118.95
4.78
4.781
4.78
118.47
4.78
4.78
4.78
117.99
4.78
4.78
4.78
117.61
4.77
4.77
4.77
117.03
4.77
4.77
4.77
116.56
4.77
4.77
4.77
116.06
4.77
4.77
4.77
115.58
4.78
4.78
4.78
115.10
4.78
4.78
4.78
114.62
4.80
4.80
4.80
114.19
4.87
4.87
4.87
113.82
4.92
4.92
4.92
113.44
4.98
4.98
4.98
113.07
5.03
5.03
5.03
112.69
5.07
5.07
5.07
112.32
5.12
5.12
5.12
111.94
5.16
5.16
5.16
111.57
5.20
5.20
5.20
111.19
5.24
5.24
5.24
110.82
5.27
5.271
5.27
110.38
5.28
5.28
5.28
109.86
5.28
5.28
5.28
109.35
5.28
5.28
S.28
108.84
5.29
5.29
5.29
108.33
5.29
5.29
5.29
107.82
5.30
5.30
5.30
107.31
5.31
5.30
5.31
106.80
5.31
5.31
5.31
106.28
5.32
5.32
5.32
106.77
5.33
5.331
5.33
106.38
5.32
5.31
5.32
106.11
5.31
5.30
5.31
104.84
5.30
5.29
5.30
104.57
5.29
5.28
5.29
104.30
5.28
5.28
5.28
104.03
5.27
5.27
5.27
103.76
5.26
5.26
5.26
103.48
5.26
5.25
5.26
103.21
5.25
5.25
5.25
102.94
5.25
5.24
5.25
102.63
5.22
5.22
5.22
101.97
5.19
5.19
5.29
101.42
5.17
5.17
5.17
100.86
5.15
5.15
5.15
100.31
5.13
5.13
5.14
99.76
5.12
5.12
5.12
99.19
5.11
5.10
5.11
98.64
5.10
5.09
5.20
98.08
5.09
5.091
5.09
97.63
5.09
5.08
5.09
96.97
5.13
5.12
5.13
96.42
5.16
5.16
5.17
95.87
5.20
5.20
5.20
95.31
5.23
5.23
5.24
94.76
5.27
5.26
5.27
94.21
5.30
5.29
5.30
93.66
5.32
5.32
5.33
9 Dewbery Diffuse Source Boo Page 19 of 83

QUAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Diffuse
Source @
3.24 mg/L
BOD(Sase
Model)
Diffuse
Source @ 5
mg/L BOD
Diffuse
Source @ 1.5
mg/L SOD
x(km)
DO(mg021)
DO(mgO21)
DO(mg021)
93.10
5.35
5.35
5.36
92.56
5.39
5.37
5.38
92.00
5.41
5.41
5.42
91.56
5.35
5.34
5.36
91.22
5.29
5.28
S.29
90.88
5.22
5.22
5.23
90.66
5.17
5.16
S.17
90.21
5.11
5.10
5.12
89.88
5.05
5.05
5.06
89.64
5.00
4.99
5.01
89.21
4.9S
4.94
4.96
88.87
4.90
4.891
4.91
88.54
4.86
4.85
4.87
88.26
4.92
4.91
4.92
88.06
4.92
4.91
4.93
87.84
4.92
4.91
4.93
87.62
4.93
4.92
4.93
87.41
4.93
4.92
4.94
87.19
4.93
4.92
4.94
86.98
4.94
4.93
4.95
$6.77
5.04
5.03
5.04
86.66
5.03
5.021
5.04
86.34
5.02
5.02
S.03
86.16
5.01
5.00
5.02
85.99
5.00
4.99
5.01
86.83
4.99
4.98
5.00
86.67
4.98
4.97
4.99
85.61
4.97
4.96
4.98
85.35
4.96
4.95
4.97
85.19
4.95
4.94
4.96
86.03
4.94
4.93
4.95
84.87
4.93
4.921
4.94
84.71
4.92
4.92
4.93
84.28
4.91
4.90
4.92
83.68
4.88
4.87
4.89
82.88
4.86
4.85
4.87
82.18
4.94
4.83
4.95
81.48
4.82
4.81
4.83
80.79
4.80
4.79
4.81
80.09
4.79
4.78
4.80
79.39
4.77
4.76
4.78
78.69
4.76
4.7SI
4.77
77.99
4.75
4.74
4.76
77.18
4.73
4.71
4.74
76.28
4.70
4.69
4.71
75.34
4.69
4.67
4.70
74.41
4.67
4.66
4.68
73.49
4.66
4.65
4.67
72.67
4.65
4.64
4.66
71.66
4.64
4.63
4.66
70.73
4.64
4.63
4.65
69.80
4.64
4.631
4.65
68.88
4.64
4.63
4.65
67.36
4.71
4.70
4.72
66.26
4.77
4.76
4.78
63.14
4.83
4.82
4.84
61.03
4.89
4.98
4.90
68.92
4.94
4.93
4.95
56.801
5.00
4.98
S.01
64.691
5.05
5.04
5.06
Dewberry Diffuse source SOD
/r
I�
Page 20 of 83

QUAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Diffuse
Source @
3.24 mg/L
BOD(Base
Model)
Diffuse
Source @ 5
mg/L BOD
Diffuse
Source @ 1.5
mg/L BOD
x(km)
DO(mgO21L)
DO(mgO2A)
D0(mgO21L)
52.58
5.10
5.08
5.11
50.47
5.14
5.13
SAS
48.36
5.19
5.18
5.20
46.92
5.19
5.18
5.20
46.16
5.19
SIB
5.20
46.40
5.19
5.18
5.20
44.64
5.19
5.18
5.20
43.88
5.19
5.18
5.20
43.13
5.19
5.18
5.20
42.37
5.19
5.18
5.20
41.61
5.19
5.18
5.20
40.86
5.19
5.181
5.20
40.09
5.20
5.19
5.21
39.60
5.12
5.10
5.13
39.38
5.12
5.10
5.13
39.17
5.12
5.11
5.13
38.96
5.12
5.11
5.13
38.73
5.12
5.11
5.13
38.62
5.12
5.11
5.13
38.30
5.12
5.11
5.13
38.08
5.12
5.11
5.13
37.87
5.12
5.111
5.13
37.66
5.12
5.11
5.13
37.42
5.15
5.14
5.16
37.18
5.18
5.17
5.19
36.94
5.22
5.21
5.23
36.70
5.25
5.24
5.26
36.46
5.28
5.27
5.29
36.22
5.30
5.30
5.31
36.98
5.33
5.32
5.34
36.74
5.36
5.35
5.37
36.50
5.38
5.371
5.39
36.26
5.41
5.40
5.41
34.86
5.37
5.36
5.37
34.30
5.39
5.38
5.39
33.73
5.40
5.40
5.41
33.17
5.42
5.41
5.43
32.61
5.44
5.43
5.45
32.04
5.46
5.45
5.46
31.48
5.47
5.46
5.48
30.92
5.48
5.48
5.49
30.36
5.501
5.491
5.51
29.79
5.51
5.501
5.52
28.48
5.46
5.46
5.47
26.42
5.44
5.43
5.44
24.36
5.42
5.41
5.43
22.30
5.41
5.40
5.42
20.24
5.40
5.40
5.41
18.18
5.41
5.40
5.41
16.12
5.41
5.40
5.42
14.06
5.42
5.41
5.42
12.00
5.42
5.42
5.43
9.94
5.44
5.431
5.44
8.46
5.45
5.44
5.45
7.57
5.51
5.50
5.51
6.68
5.56
5.55
5.56
6.79
5.61
5.60
5.61
4.90
5.65
5.64
5.66
4.01
5.69
5.68
5.69
3.12
5.72
5.72
5.73
Dewberry
Diffuse Source BOD
Page 21 of 83

ODAL2N Dirtance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWBF 2.5 MGD
Model
Baseline
(1)
(2)
Diffuse
Source @
3.24 mg/L
BOD(Base
Model)
Diffuse
Source @ 5
mg/L BOD
Diffuse
Source @ 1.5
mg/L BOD
x(km)
DO(mgOVL)
DO(mgOOL)
DO(mgO21L)
2.23
5.76
5.75
5.76
7.34
5.79
5.78
5.79
0.45
5.72
5.72
5.79
0.00
5.12
5.72
5.73
MIN DIFF
MAX DIFF
(1)
(2)
Difference
from
Baseline
Difference
from
Baseline
-0.1%
0.1%
-0.1%
0.1%
-0.1%
0.1%
-0.1%
0.1%
-0.3%
0.0%
0.0%
0.3%
Dewberry Diffuse Source BOD Page 22 of 83

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4014
NEUSE RIVER QUAL2K MODEL SENSITIVITY ANALYSIS
PROJECT: NEUSE RIVER QUAL2K MODEL FOR TOWN OF CLAYTON NPDES
CLIENT: TOWN OF CLAYTON
LOCATION: 1000 Durham Street Extension; Clayton, NC 27528
PROJECT NUMBER: 501/8315
DATE: 07/15/2020
Tlus is a summary of Noose Rive QUAL2K model sensitivity as follows:
Base Model Case: Low Flow Model, Daily Meximum NPDES discharge, LCWRF @ 2.5 MOD
Sensitivity Input parameter: Diffuse Source NH3-N input assumption
Output parameter(s): Neese River DO profile (ml
DISCUSSION/RESULTS: There we assumptions of i iguse Dow into each of the 31 reaches ofthe QUAL2K model 6om Falls Dam to Goldsboro. Water quality of the
diffuse Dow was largely unknown: therefore, assaumptions were made in the base model scenario. The sensitivity analysis looked at NH3-N from 0 nal to I mg/L; the
baseline input is 0.1 ing/L. The results show varying the NH3-N ofi iguse sources implants, DO profile less data 1.5%when the NH3-N is modeled up to I ni which is
IOx the baseline input based upon the 199E QUAL2E model study.
SENSITIVITY OF QUAL2K-PREDICTED NEUSE RIVER DO TO DIFFUSE SOURCE NH3
'Note 1: only maimtmoutwies (..a hal and major NPOB sources are Idrinu ied on de dart. More minor sources, arc Included in the QUApxmodeic
'Nate 2: HPOB point trump discharges are modeled at summer maximum daily discharge Iil unless otherwise noted.
I_"
Diffuse Source @ 0.1 mg/L NH3-N
• (Base Modell
• Diffuse Source @ 1.0 mg/L NH3-N
a
• • • • • Diffuse Source@ 0 mg/L N H3-N
•AMS Data Min: 2009-2018
• AMS Dan Avg: 2009-2018
Crabtree Creek
as
Inllein J bW.NIP INPDES(
10.00
9.00
8.00
7.00
E
6.00 Dp
4.00 0
Neue River WWTP INPDES) I'll won Caumv\vT Lee Steam Electric Plan,(NPDES)
Smith Creek WWTP Shchield 4RP ..-__ I 3.00
Smith Creek Harris Creel. vop'ai Civil ,antral Johnston Coonty Regional
ll
I _
Sra-..r. WWrF(NPDES) Goldsboro WRF INPDES) 2.00
Moca k
Markc Creel 5-ft Creek
Walnut Creek --
fdill Creek Plotting Creek'. \ 1.00
I Polecat Branch
( I� Black Creek Little River
�i
180.00 170.00 160.00 150.00 140.00 130.D0 120.00 110.00 100.00 90.00 80.00 70.00 60.00 50,00 40.00 30.00 20.00 10,00 ODD
Neuse River Location. Distance from Model Endpoint in Goldsboro (km)
QUAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Diffuse
Source @ 0.1
mg/L NH3-N
(Base Model)
Diffuse
Source @ 1.0
mg/L NH3-N
Diffuse
Source @ 0
mg/L NH3-N
x(km)
DO(prol
DO(mgO2/L)
DO(mg02/L)
166.83
5.94
5.94
5.94
166.54
5.97
5.97
5.97
166.98
5.98
5.981
5.98
165.41
5.99
5.99
5.99
164.86
6.00
6.00
6.00
164.28
6.01
6.01
6.01
163.72
6.01
6.01
6.01
163.15
6.02
6.02
6.02
9 Dewberry
Diffuse Source NH3
Page 23 of 83

QUAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWBF 2.5 MGD
Model
Baseline
(1)
(2)
Diffuse
Source @ 0.1
mg/L NH3-N
(Base Model)
Diffuse
Source @ 1.0
mg/LNH3-N
Diffuse
Source @ 0
mg/LNH3-N
x(km)
DO(m9O2A)
DO(m9O21L)
DO(m9O21L)
162.59
6,02
6.02
6.02
162.02
6.03
6.03
6.03
161.46
6.03
6.031
6.03
161.10
6.05
6.051
6.05
160.94
6.06
6.06
6.06
160.79
6.07
6.07
6.07
160.63
6.08
6.08
6.08
160.47
609
6.09
6.09
160.32
6A1
6.11
6.11
160.16
6.12
6.12
6.12
160.00
6.12
6.12
6.12
169.86
6.13
6.13
6.13
159.69
6.14
6.14
6.14
159.34
6.06
6.061
6.06
168.80
5.82
5.82
5.82
158.26
5.76
5.76
SW
167.71
5.70
5.70
5.70
167.17
5.66
5.66
5.66
156.63
5.62
5.62
5.62
156.09
5.59
5.59
5.59
155.64
5.57
5.57
5.57
166.00
5.55
5.55
5.55
154.46
5.54
5.54
5.54
163.94
5.54
5.541
5.54
163.45
5.54
5.54
5.54
162.97
5.54
5.54
5.54
162.48
5.54
5.54
5.54
151.99
5.54
5.54
5.54
151.50
5.54
5.54
5.54
151.01
5.55
5.55
5.55
150.62
5.56
5.56
5.56
150.03
5.56
5.56
5.56
149.64
5.56
5.56
5.56
149.09
5.65
5,651
5.65
148.66
5.72
5.72
5.72
148.24
5.78
5.78
5.78
141.82
5.83
5.83
5.93
147.39
5.87
5.87
5.87
146.97
5.91
5.91
5.91
146.56
5.95
5.95
5.95
146.12
5.98
5.98
5.98
146.70
6.00
6.00
6.00
146.28
6.02
6.02
6.02
144.96
6.07
6.07
6.07
144.73
6.11
6.11
6.11
141.51
6.14
6.14
6.14
144.29
6.17
6.17
6.17
144.07
6.20
6.20
6.20
143.85
6.23
6.23
6.23
143.63
6.25
6.25
6.25
143.41
6.27
6.27
6.27
143.19
6.29
6.29
6.29
142.97
6.31
6.31
6.31
142.66
6.33
6.33
6.33
142.26
6.34
6.34
6.39
141.86
6.36
6.36
6.36
141.46
6.37
6.37
6.37
141.06
6.38
6.38
6.38
140.66
6.39
6.39
6.39
140.26
6.40
6.40
6.409
a.�
E!? Dewberry Diffuse Source NH3
Page 24 of 83

QUAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LOWRF 2.5 MGD
Model
Baseline
(1)
(2)
Diffuse
Source @ 0.1
mg/L NH3-N
(Base Model)
Diffuse
Source @ 1.0
mg/L NH3-N
Diffuse
Source @ 0
mg/L NH3-N
x(km)
DO(mgO21L)
DO(mgO2/L)
DO(mgO211)
139.86
6.41
6.41
6.41
139.46
6.42
6.42
6.42
139.06
6.42
6.42
6.42
138.77
6.42
6.42
6.42
138.59
6.42
6.42
6.42
138.42
6.42
6.42
6.42
138.24
6.42
6.42
6.42
138.06
6.42
6.42
6.42
137.88
6.42
6.42
6.42
137.70
6.42
6.42
6.42
137.52
6.42
6.42
6.42
137.34
6.42
6.42
6.42
137.16
6.42
6.42
6.42
136.85
6.41
6.41
6,41
136.40
6.40
6.40
6.40
136.96
6.39
6.39
6.39
138.60
6.39
6.39
6.39
136.06
6.39
6.39
6.39
134.60
6.38
6.38
6.38
134.16
6.38
6.38
6.38
133.69
6.38
6.38
6.38
133.24
6.37
6.37
6.37
132.79
6.37
6.37
6.37
132.34
6.32
6.31
6.31
131.89
6.26
6.25
6.26
131.44
6.22
6.21
6.21
130.99
6.16
6.16
6.16
130.64
6.13
6.13
6.13
130.08
6.09
6.09
6.09
129.63
6.06
6.06
6.06
129.18
6.03
6.03
6.03
128.73
6.00
6.001
6.00
128.28
5.28
5.28
5.28
127.95
5.25
5.25
5.25
127.75
5.21
5.21
5.21
127.65
5.18
5.18
5.18
127.34
5.14
5.14
5.14
127.14
5.11
5.11
5.11
126.94
5.08
5.08
5.08
126.74
5.05
5.05
5.05
126.63
5.01
5.01
5.01
126.33
4.98
4.981
4.98
126.13
4.95
4.951
4.95
126.78
4.93
4.93
4.93
126.30
4.92
4.92
4.92
124.81
4.90
4.90
4.90
124.33
4.88
4.88
4.88
123.84
4.87
4.87
4.87
123.36
4.86
4.86
4.86
122.87
4.85
4.85
4.85
122.39
4.84
4.84
4.84
121.90
4.83
4.83
4.83
121.42
4.82
4.821
4.82
121.08
4.82
4.82
4.82
120.88
4.82
4.82
4.82
120.68
4.81
4.81
4.81
120.46
4.81
4.81Al120.28
4.80
4.80120.09
4.80
4.80119.89
4.80
4.80
9 Dewberry
arru
Diffuse Source NH3
Page 25 of 83

QUALZK Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Diffuse
Source @ 0.1
mg/L NH3-N
(Base Model)
Diffuse
Source @ 1.0
mg/L NH3-N
Diffuse
Source @ 0
mg/L NH3-N
z(km)
DO(mgO2A)
DO(mgO2A)
DO(m9O21.)
119.69
4.79
4.79
4.80
119.49
4.79
4.79
4.79
119.29
4.79
4.791
4.79
118.96
4.78
4.78
4.78
118.47
4.78
4.78
4.78
117.99
4.78
4.78
4.78
117.51
4.77
4.77
4.77
117.03
4.77
4.77
4.77
116.56
4.77
4.77
4.77
116.06
4.77
4.77
4.77
115.58
4.78
4.78
4.78
115.10
4.78
4.78
4.78
114.62
4.80
4.801
4.80
114.19
4.87
4.87
4.87
113.82
4.92
4.92
4.92
113.44
4.98
4.98
4.98
113.07
5.03
5.03
5.03
112.69
5.07
5.07
5.07
112.32
5.12
5.12
5.12
111.94
5.16
5.16
5.16
111.97
5.20
5.20
5.20
111.19
5.24
5.24
5.24
110.82
5.27
5.271
5.27
110.38
5.28
5.27
5.28
109.86
5.28
5.28
5.28
109.35
5.28
5.28
5.28
108.84
5.29
5.28
5.29
108.33
5.29
5.29
5.29
107.82
5.30
5.29
5.30
107.31
5.31
5.30
5.31
106.80
5.31
5.30
5.31
106.28
5.32
5.31
5.32
105.77
5.33
5.321
5.33
105.38
5.32
5.30
5.32
105.11
5.31
5.29
5.31
104.84
5.30
5.28
5.30
104.67
5.29
5.27
5.29
104.30
5.28
5.26
5.28
104.03
5.27
5.26
5.27
103.76
5.26
5.25
5.26
103.48
5.26
5.24
5.26
103.21
5.25
5.23
5.25
102.94
5.25
5.23
5.25
102.53
5.22
5.20
5.22
101.97
5.19
5.17
5.19
101.42
5.17
SAS
5.17
100.86
5.15
5.13
SAS
100.31
5.13
5.11
5.24
99.76
5.12
5.10
5.12
99.19
5.11
5.08
5.11
98.64
5.10
5.07
5.10
98.08
5.09
5.07
5.09
97.63
5.09
5.06
5.09
96.97
5.13
5.10
5.13
96.42
5.16
5.14
5.17
95.87
5.20
5.17
5.20
96.31
5.23
5.21
5.24
94.76
5.27
1.14
5.27
94.211
5.30
5.27
5.30
93.661
5.32
5.29
5.33
Dewberry Diffuse Source NH3
Pek
T
10
rNWO
Pti
/1
Page 26 of 83
r

QUAL21K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWSF 2.5 MGD
Model
Baseline
(1)
(2)
Diffuse
Source @ 0.1
mg/L NH3.N
(Base Model(
Diffuse
Source @ 1.0
mg/LNH3-N
Diffuse
Source @ 0
mg/L NH3-N
x(km)
DO(mgO21L)
DO(mgO2/f.)
DO(mgO211.)
93.10
5.35
5.32
5.35
92.55
5.38
5.34
5.38
92.00
5.41
5.38
5.42
91.66
5.35
5.31
5.35
91.22
5.29
5.25
5.29
90.88
5.22
5.18
5.23
90.65
5.17
5.12
5.17
90.21
5.11
5.06
5.11
89.88
5.05
5.00
5.06
89.64
5.00
4.95
5.01
89.21
4.95
4.89
4.96
88.87
4.90
4.84
4.91
88.64
4.86
4.791
4.86
88.26
4.92
4.86
4.92
88.05
4.92
4.86
4.93
87.84
4.92
4.86
4.93
87.62
4.93
4.87
4.93
87.41
4.93
4.87
4.94
87.19
4.93
4.87
4.94
86.98
4.94
4.88
4.94
86.77
5.04
4.98
5.04
86.55
5.03
4.97
5.04
86.34
5.02
4.971
5.03
86.16
5.01
4.96
5.02
85.99
5.00
4.94
5.01
85.83
4.99
4.93
5.00
86.67
4.98
4.92
4.98
86.61
4.97
4.91
4.97
85.36
4.96
4.90
4.96
85.19
4.95
4.89
4.95
85.03
4.94
4.88
4.94
84.87
4.93
4.87
4.93
$4.71
4.92
4.861
4.93
84.28
4.91
4.85
4.92
83.68
4.88
4.82
4.89
82.88
4.86
4.80
4.87
82.18
4.84
4.78
4.84
81.48
4.82
4.76
4.82
80.79
4.80
4.74
4.81
80.09
4.79
4.72
4.79
79.39
4.77
4.71
4.78
78.69
4.76
4.70
4.77
77.99
4.75
4.691
4.76
77.18
4.73
4.66
4.73
76.26
4.70
4.64
4.71
76.34
4.69
4.62
4.69
74.41
4.67
4.61
4.68
73.49
4.66
4.60
4.67
72.67
4.65
4.59
4.66
71.66
4.64
4.58
4.65
70.73
4.64
4.58
4.65
69.80
4.64
4.58
4.65
68.88
4.64
4,581
4.65
67.36
4.71
4.65
4.71
66.26
4.77
4.72
4.78
63.14
4.83
4.78
4.84
61.03
4.89
4.84
4.89
58.92
4.94
4.90
4.95
56.80
5.00
4.95
5.00
64.69
5.05
5.00
5.05
€> Dewberry
Diffuse Source NH3
Page 27 of 83

gUAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Diffuse
Source @ 0.1
mg/L NH3-N
(Base Model)
Diffuse
Source @ 1.0
mg/L NH3-N
Diffuse
Source @ 0
mg/L NH3-N
x(km)
00(mgO2/L)
DO(mgO21L)
DO(mgO21T-)
52.58
5.10
5.06
5.10
50.47
5.14
5.10
5.15
48.36
5.19
5.15
5.19
46.92
5.19
5.15
5.19
46.16
5.19
5.15
5.19
46.40
5.19
5.15
5.19
44.64
5.19
5.15
5.19
43.88
5.19
5.15
5.19
43.13
5.19
5.15
5.19
42.37
5.19
5.15
5.19
41.61
5.19
5.16
S.
40.85
5.19
5.16
5.2E
40.09
5.20
5.161
5.20
39.60
5.12
5.08
5.12
39.38
5.12
5.08
5.12
39.17
5.22
5.08
5.12
38.96
5.12
5.08
5.12
38.73
5.12
5.08
5.12
38.52
5.12
5.08
5.12
38.30
5.12
5.08
5.12
38.08
5.12
5.09
5.12
37.87
5.12
5.09
5.12
37.66
5.12
5.091
5.12
37.42
5.15
5.12
5.16
37.18
5.18
5.15
5.19
36.94
5.22
5.19
5.22
36.70
5.25
5.22
5.25
36.46
5.29
5.25
5.28
36.22
5.30
5.28
5.31
35.98
5.33
5.30
5.33
36.74
5.36
5.33
5.36
36.50
5.38
5.36
5.39
36.26
5.41
5.381
5.41
34.86
5.37
5.34
5.37
34.30
5.39
5.36
5.39
33.73
5.40
5.38
5.41
33.17
5.42
5.40
5.42
32.61
5.44
5.42
5.44
32.04
5.46
5.43
5.46
31.48
5.47
5.45
5- 7
30.92
5.48
5.47
5.49
30.36
5.50
5.48
5.50
29.79
5.51
. 5.491
5.51
28.48
5.46
5.45
5.47
26.42
5.44
5.42
5.44
24.36
5.42
5.40
5.42
22.30
5.41
5.39
5.41
20.24
5.40
5.39
5.41
18.18
5.41
5.39
5.41
16.12
5.41
5.40
5.41
14.06
5.42
5.40
5.42
12.00
5.42
5.41
5.43
9.94
5.44
S.421
5.44
8.46
5.45
5.44
5.45
7.57
5.51
5.50
5.51
6.68
5.56
5.55
5.56
6.79
5.61
5.60
5.61
4.90
5.65
5.64
5.65
4.01
5.69
5.68
5.69
3.12
5.72
5.72
5.73
'<r Dewberry
Diffuse Source NH3
i^1
T'M1
T
r
r+'s.
/1
Page 28 of 83
N

QUALZK Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Diffuse
Source @ 0.1
mg/L NH3-N
(Base Model)
Diffuse
Source @ 1.0
mg/L NH3-N
Diffuse
Source @ 0
mg/L NH3-N
X(km)
DO(mgO27-)
DO(mgO21L)
D0(mgO21Q
2.23
5.76
5.75
5.76
1.34
5.79
5.78
5.79
0.45
5.72
5.72
5.72
0.00
5.72
5.72
5.72
(1) (2)
Difference Difference
from from
Baseline Baseline
-0.1% 0.0%
-0.1% 0.0%
-0.1% 0.0%
-0.1% 0.0%
MIN DIFF -1.3% 0.0%
MAX DIFF 0.0% 0.1%
aln Dewberry Diffuse Source NH3 Page 29 of 83
C>

NEUSE RIVER QUAL2K MODEL- SENSITIVITY ANALYSIS
PROJECT: NEUSE RIVER QUAL2K MODEL FOR TOWN OF CLAYTON NPDES
CLIENT: TOWN OF CLAYTON
LOCATION: 1000 Durham Street Extension; Clayton, NC 27528
PROJECT NUMBER: 50118315
DATE: 07/15/2020
DESCRIPTION:
Phis is a summary of Noose Rive QUAL2K model semitivity, "follows:
Base Model Case: Water Quality Calibration Model (Sept 2013)
Sensitivity Input parameter: Reaches 1-31, channel slope
Output parameter(s): Noose River DO profile (mg/L)
DISCUSSION/RESULTS: For each of the 31 implies the QUAL2K model estimates hydraulic parameters such as depth and velocity; these estimates in tens impact
emetic rate parameters such as ecaerefion in each reach. The base model estimated channel properties using HEC-RAS cross -sectional data (side slopes, roughness
:oefficient, bonom width, and channel slope) As manning equation inputs for each reach from Falls Dam to Goldsboro. The channel slope is perhaps the hardest to estivate
Nith the cross sectional data as it is estimated from bottom elevation of one cross section to another. This Sensitivity analysis looked at three different methods for
alculating thermal slope, which are listed in order ofdmreasing level of detail for the basis: (I) HEC-RAS in -channel slope. after calibrating to USGS depth preNctions,
2) Using the Tough estimate ofslope from Socia lals data of elevation at beginning and end of each reach, and (3) Using an average slope number for ail 31 reaches,
"Bropenting slope from Falls Data to Goldsboro. The Streamslam dam resulted in DO within 10 %of HEC-RAS data. Near the Link Creek WRF, it may be noted that the
itreasmtats slope prediction provides a DO prediction most closely to AMS data. However, the Soeamsmm slopes in this section also predict depth in this section ofriver
bat is not within reason (see channel slope- depth calibration). The depth prediction was priontiaed as the USGS data for depth is expected to he mare accurate than the
nodel-calibration to AMS data. As may be expected the (3) option of ming an average slope for all reaches. levels out some of the troughs and valleys of DO prediction,
rut it also appears to be furthest from AMS dam. The average slope method resulted in DO prediction within 6 %of the brae HEC-RAS method.
SENSITIVITY OF QUAL2K-PREDICTED NEUSE RIVER DO TO REACH CHANNEL SLOPE
'Noe 1: only major tribreades he.II Ml and major NPNES sources are Identified on the dram. More minor sources are included In the QLAUK models.
1000
s
I
a oft
as
r+nc000��
W OOOOOU.o_
700
�w
•
E
•
6.00 p
•
> Calibrated HEGRAS Channel 51ope
yo
(Base Medal)
an
.•USGS Streamstats Slope
500
9
•Average Channel Slope
O
Crabtree Creek. lone Creek
WWTP (NPOES *Sept 2013 AMS Data
3D0 e
Neuse River WWTP(N>DES(
Johnston County WTP tee Steam
Electric Plant (NPDE51
5mlth Creek WVJTP
Smithfield WTP
3.00
Poplar Creek
Smah Creek Harms Creek
Central Johnston County Regional
Poplar Branch WWTF INPDES)
Goldsboro WRF(NPDES)
2,00
_ Macassar Creek
Marks Creel
Swrft Creel
Wain_ eek
Falling Creek
1.00
Polecat Branch
BlackCrack MJICreek
LittleRrver
ua Y YY eY 4 u
• .. 6 O••
.- a
000
180.00 170.00 160Do 150.00 10000 130.00 120.00 110.00
100.00 90.00 SO.00 7000 6(l 50.M 40M 30.00 20.00 10,00 0.00
Neuse River Location-
Distance from Model Endpoint in Goldsboro (km)
WQ Calibration
(Sept 20131
Model
Baseline
(2)
(2)
Calibrated
HEC-RAS
QUAL2K Distance-
Channel
USGS
Average
Upstream of Goldsboro
Slope (Base
Streamstats
Channel
(Model Endpoint)
Model)
Slope
Slope
X(km)
DO(mgO2A)
DO(m9021L)
DO(mgO21L)
166.83
7.10
7.10
7.10
(1) (2)
OlHerence Difference
from from
Baseline stilllne
Ye %
0.0 % 0.0 %
11 Dewberry Channel Slope Calc-DO Page 30 of 83

QUAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
W Q Calibration
(Sept 2013)
Model
Baseline
(1)
(2)
Calibrated
HEC-RAS
Channel
Slope (Base
Model)
U5GS
Streamstats
Slope
Average
Channel
Slope
X(km)
DO(mg02/L)
DO(mg02/L)
DO(mgO2/L)
166.54
7.09
Z11
7.06
166.98
7.07
7.13
7.02
165.41
7.06
7.14
7.00
164.86
7.06
7.151
6.97
164.28
7.05
7.16
6.94
163.72
7.04
7.18
6.92
163.16
7.04
7.19
6.90
162.59
7.04
7.20
6.89
162.02
7.04
7.21
6.87
161.46
7.03
7.22
6.86
161.10
7.04
7.20
6.85
160.94
7.04
7.19
6.85
160.79
7.04
7.18
6.84
160.63
7.04
7.171
6.84
160.47
7.04
7.151
6.83
160.32
7.04
7.14
6.83
160.16
7.04
7.13
6.83
160.00
7.04
7.12
6.82
159.86
7.04
7.10
6.82
159.69
7.04
7.09
6.81
159.34
7.01
7.01
6.81
168.80
7.00
6.97
6.82
158.26
6.98
6.92
6.82
167.71
6.96
6.87
6.81
157.17
6.95
6.82
6.81
166.63
6.94
6.78
6.81
156.09
6.92
6.74
6.81
155.54
6.91
6.70
6.81
166.00
6.92
6.68
6.83
154.46
6.91
6.6S
6.83
153.94
6.91
6.651
6.83
153.45
6.90
6.65
6.83
152.97
6.90
6.65
6.82
152.48
6.89
6.65
6.82
151.99
6.89
6.66
6.82
151.50
6.89
6.66
6.82
151.01
6.88
6.66
6.83
160.52
6.90
6.69
6.85
160.03
6.90
6.69
6.86
149.64
6.89
6.69
6.85
149.09
6.91
6.651
6.85
148.66
6.92
6.61
6.85
148.24
6.94
6.58
6.85
147.82
6.95
6.54
6.85
147.39
6.96
6.51
6.86
146.97
6.98
6.49
6.87
146.56
6.99
6.46
6.87
146.12
7.00
6.43
6.87
145.70
7.01
6.40
6.87
145.28
7.02
6.38
6.88
143.96
6.23
5.641
6.10
142.66
7.86
7.68
7.80
142.26
7.83
7.66
7.76
141.86
7.81
7.65
7.73
141.46
7.78
7.64
7.69
141.06
7.76
7.63
7.66
140.66
7.74
7.62
7.62
140.26
7.72
7.61
7.59
139.86
7.70
7.61
7.66
139.46
7.68
7.60
7.63
9 Dewberry Channel Slope Calc-DO Page 31 of83

QUARK Distance-
Upstream of Goldsboro
(Model Endpoint)
WQ Calibration
(Sept 2013)
Model
Baseline
(1)
(2)
Calibrated
HEC-RAS
Channel
Slope (Base
Model)
USGS
Streamstats
Slope
Average
Channel
Slope
x(km)
DO(mgO271)
DO(M9021L)
DO(mgO21L)
139.06
7.66
7.59
7.51
138.77
7.27
7.22
7.15
138.69
7.28
7.22
7.16
138.42
7.28
7.23
7.16
138.24
7.29
7.23
7.16
138.06
7.29
7.24
7.16
137.88
7.30
7.24
7.16
137.70
7.30
7.25
7.15
137.62
7.31
7.25
7.15
137.34
7.31
7.26
7.16
137.16
7.32
7.26
7.16
136.86
7.28
7.241
7.13
136.40
7.29
7.25
7.12
135.95
7.29
7.26
7A2
136.60
7.30
7.27
7.12
135.06
7.30
7.28
7.12
134.60
7.31
7.29
7.12
134.15
7.31
7.30
7.12
133.69
7.32
7.30
7.12
133.24
7.32
7.31
7.12
132.79
7.32
7.32
7.11
132.34
7.33
7.321
7.12
131.89
7.33
7.33
7.13
131.44
7.33
7.33
7.14
130.99
7.34
7.33
7.16
130.54
7.34
7.34
7.16
130.08
7.34
7.34
7.17
129.63
7.35
7.35
7.18
129.18
7.35
7.34
7.19
128.73
7.35
7.35
7.20
128.28
7.13
7.13
7.01
127.95
7.13
7.131
7.02
127.75
7.14
7.13
7.02
127.66
7.14
7.13
7.03
127.34
7.14
7.13
7.03
127.14
7.14
7.13
7.04
126.94
7.14
7.13
7.04
126.74
7.14
7.13
7.06
126.53
7.14
7.13
7.05
126.33
7.14
7.13
7.06
126.13
7.14
7.13
7.06
126.78
7.15
7.151
7.08
125.30
7.16
7.16
7.09
124.81
7.18
7.18
7.10
124.33
7.19
7.19
7.11
123.94
7.20
7.21
7.13
123.36
7.21
7.22
7.14
122.87
7.22
7.24
7.16
122.39
7.23
7.25
7.16
121.90
7.24
7.26
7.17
121.42
7.25
7.28
7.18
121.08
7.25
7.241
7.18
120.88
7.25
7.21
7.19
120.68
7.25
7.18
7.20
120.48
7.26
7.24
7.20
120.28
7.26
7.11
7.21
120.09
7.27
7.08
7.22
119.89
7.27
7.05
7.22
119.69
7.28
7.02
7.23
119.49
7.28
6.99
7.23
<i[ Dewberry Channel Slope Calc-DO
4^
I\
Page 32 of 83

QUAL2K Oistance-
Upstream of Goldsboro
(Model Endpoint)
W Q Calibration
(Sept 2013)
Model
Baseline
(1)
(2)
Calibrated
HEC-RAS
Channel
Slope (Base
Model)
USGS
Streamstats
Slope
Average
Channel
Slope
x(km)
D0(mg024)
DO(m9O21L)
DO(m9O21L)
119.29
7.28
6.96
7.24
1%95
7.29
6.97
7.25
118.47
7.30
6.97
7.27
117.99
7.31
6.98
7.28
117.61
7.32
6.98
7.29
117.03
7.33
6.99
7.30
116.55
7.33
6.99
7.32
116.06
7.34
7.00
7.33
116.68
7.35
7.00
7.34
116.10
7.35
7.00
7.36
114.62
7.36
7.01
7.36
114.19
7.37
7.041
7.36
113.82
7.37
7.06
7.36
113.44
7.38
7.08
7.35
113.07
7.38
7.09
7.34
112.69
7.38
7.11
7.34
112.32
7.38
7.13
7.33
111.94
739
7.15
7.33
111.67
7.39
7.16
7.33
111.19
739
7.18
7.32
110.82
7.40
7.19
7.32
110.38
7.40
7.211
7.32
109.86
7.39
7.23
7.32
109.35
7.39
7.25
7.32
108.84
7.39
7.26
7.32
108.33
7.39
7.28
7.32
107.82
7.39
7.29
7.32
107.31
7.39
7.31
7.31
106.80
7.39
7.32
7.31
106.28
7.39
7.33
7.31
105.77
7.39
7.34
7.31
106.38
7.38
7.341
7.31
106.11
7.37
7.33
7.30
104.84
7.37
7.32
7.30
104.67
7.36
7.31
7.30
104.30
7.35
7.31
7.29
104.03
7.34
7.30
7.29
103.76
7.34
7.29
7.28
103.48
7.33
7.29
7.28
103.21
7.32
7.28
7.27
102.94
7.32
7.27
7.27
102.53
7.32
7.28
7.28
101.97
7.32
7.28
7.29
101.42
7.33
7.28
7.31
100.86
7.33
7.28
7.32
100.31
7.33
7.28
7.33
99.75
7.33
7.28
7.34
99.19
7.34
7.281
7.36
98.64
7.34
7.28
7.36
98.08
7.34
7.28
7.37
97.53
7.34
7.28
7.37
96.97
7.32
7.26
7.36
96.42
7.31
7.24
7.33
96.87
7.29
7.21
7.31
96.31
7.27
7.19
7.29
94.76
7.26
7.17
7.27
94.21
7.24
7.16
7.25
93.66
7.23
7.14
7.23
93.10
7.22
7.12
7.22
92.66
7.201
7.101
7201.
9 Dewberry Channel Slope Calc-DO Page 33 of 83

QUAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
WQ Calibration
(Sept 2013)
Model
Baseline
(1)
(2)
Calibrated
HEC-RAS
Channel
Slope (Base
Model)
USGS
Streamstats
Slope
Average
Channel
Slope
x(km)
DO(mg027L)
DO(mg021L)
DO(mg021L)
92.00
7.12
7.02
7.11
91.56
7.11
7.02
7.11
91.22
7.10
7.02
7.12
90.88
7.10
7.02
7.12
90.56
7.09
7.02
7.12
90.21
7.08
7.02
7.13
89.88
7.08
7.02
7.13
89.64
7.07
7.02
7.13
89.21
7.06
7.02
7.13
88.87
7.06
7.02
7.14
88.54
7.05
7.02
7.14
88.26
6.90
6.88
6.98
88.06
6.90
6.88
6.98
87.84
6.90
6.88
6.98
87.62
6.90
6.88
6.98
87.41
6.90
6.88
6.98
87.19
6.91
6.88
6.98
86.98
6.91
6.88
6.98
86.77
6.90
6.88
6.98
86.66
6.90
6.881
6.98
86.34
6.91
6.88
6.98
86.16
6.90
6.88
6.98
85.99
6.90
6.88
6.98
85.83
6.90
6.88
6.99
86.67
6.91
6.89
6.99
85.61
6.91
6.89
6.99
85.36
6.91
6.89
6.99
86.19
6.91
6.89
6.99
86.03
6.91
6.89
7.00
94.87
6.91
6.891
7.00
84.71
6.91
6.89
7.00
84.28
6.87
6.85
6.96
83.68
6.87
6.85
6.96
$2.88
6.87
6.85
6.97
82.18
6.87
6.84
6.97
81.48
6.87
6.84
6.97
80.79
6.87
6.84
6.98
80.09
6.88
6.84
6.98
79.39
6.88
6.84
6.98
78.69
6.88
6.841
6.99
77.99
6.88
6.841
6.99
77.18
6.88
6.85
6.99
76.26
6.88
6.85
7.00
76.34
6.88
6.86
7.01
74.41
6.88
6.87
7.01
73.49
6.88
6.88
7.02
72.67
6.88
6.89
7.03
71.66
6.88
6.90
7.03
70.73
6.88
6.90
7.04
69.80
6.88
6.91
7.05
68.88
6.88
6.921
7.05
67.36
6.89
6.92
7.06
65.25
6.90
6.92
7.07
63.14
6.91
6.92
7.09
61.03
6.92
6.93
7.10
58.921
6.94
6.93
7.11
66.80
6.95
6.94
7.13
64.69
6.96
6.94
7.14
62.681
6.97
6.95
7.75
50.471
6.98
6.95
7.16
i� DeVy},7gT-YyChannel Slope Calc-DO Page 34 of 83
/ter

QUAL21K Distance-
Upstream of Goldsboro
(Model Endpoint)
WQ Calibration
(Sept 2013)
Model
Baseline
(1)
(2)
Calibrated
HEC-RAS
Channel
Slope (Base
Model)
USGS
Streamstats
Slope
Average
Channel
Slope
x(km)
DO(m8O21L)
DO(m9O21L)
DO(m9O2,L)
48.36
6.99
6.96
7.17
46.92
6.99
6.96
7.17
46.16
6.99
6.97
7.17
45.40
6.99
6.97
7.16
44.64
6.96
6.98
7.16
43.88
6.98
6.98
7.16
43.13
6.98
6.98
7.16
42.37
6.98
6.99
7.16
41.61
6.98
6.99
7.16
40.85
6.98
7.00
7.15
40.09
6.98
7.00
7.16
39.60
6.85
6.85
7.00
39.38
6.85
6.83
7.00
39A7
6.84
6.801
7.00
38.95
6.84
6.78
7.00
38.73
6.84
6.76
7.00
38.52
6.84
6.74
7.00
38.30
6.84
6.72
7.00
38.08
6.84
6.70
7,00
37.87
6.84
6.68
7.00
37.65
6.84
6.66
7.01
37.42
6.83
6.66
7.00
37.18
6.84
6.66
7.01
36.94
6.85
6.671
7.02
36.70
6.86
6.67
7.03
36.46
6.86
6.68
7.04
36.22
6.87
6.69
7.06
36.98
6.88
6.69
7.06
35.74
6.88
6.70
7.07
35.50
6.89
6.70
1.07
35.26
6.90
6.71
7.08
34.86
6.78
6.61
6.97
34.30
6.79
6.63
6.99
33.73
6.79
6.66
7.00
33.17
6,80
6.68
7.02
32.61
6.81
6,70
7.04
32.04
6.82
6.72
7.06
31.48
6.82
6.74
7.07
30.92
6.83
6.76
7.09
30.36
6.84
6.781
7.11
29.79
6.84
6.80
7.12
28.48
6.84
6.80
7.13
26.42
6.84
6.81
7.14
24.36
6,84
6.82
7.16
22.30
6.84
6.82
7.17
20.24
6.84
6.83
7.18
18.18
6.84
6.84
7.19
16.12
6.84
6.84
7.20
14.06
6.85
6.85
7.21
12.00
6.95
6.861
7.22
9.94
6.85
6.86
7.23
8.46
6.93
6.92
7.27
7.57
6.94
6.90
7.29
6.68
6.96
6.88
7.31
5.79
6.97
6.87
7.33
4.90
6.98
6.86
7.34
4.01
6.99
6.94
7.36
3.12
7.00
6.83
7.37
2.23
7.01
6.82
7.39
1.34
7.021
6.80
7.40
Dewberry Channel Slope Calc- DO Page 35 of 83

WQ Calibration
(Sept 2013)
Model
Baseline
(1)
(2)
Calibrated
NEC-BAS
QUAL2K Distance-
Channel
USGS
Average
Upstream of Goldsboro
Slope (Base
Streamstats
Channel
(Model Endpoint)
Model)
Slope
Slope
x(km)
DO(mgOZ1jl
DO(mg021)
DO(mg=L)
0.45
7.05
6.81
7.42
0.001
7.05
6.91
7.42
(1) (2)
Difference Difference
Irom Ire.
Baseline Baseline
-3.4% 5.3%
-3.4% 5.3%
MIN DIFF -9.5% -3.2%
MAX DIFF 2.6% 5.5%
Dewberry Channel Slope Calc- DO Page 36 of 83

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NEUSE RIVER QUAL2K MODEL- SENSITIVITY ANALYSIS
PROJECT: NEUSE RIVER QUAL2K MODEL FOR TOWN OF CLAYTON NPDES
CLIENT: TOWN OF CLAYTON
LOCATION: 1000 Durham Street Extension; Clayton, NC 27529
PROJECT NUMBER: 50118315
DATE: 07115/2020
DESCRIPTION:
This is a summery of Name Rive QUAL2K model sensitivity as follows:
Base Model Case: Flow Calibration Model (Dec 2012)
Sensitivity Input parameter: Reaches 1-3 1, channel slope
Output parameter(s): Neme River Depth (m)
DISCUSSION/RESULTS: This analysis looks at the impact of different channel slope calculations on the depth prediction in the model in the flow refill
model. Though the thermal slope also impacts DO prediction; the calibration of channel slope to USGS-measmed depth was priontized. A separate graph shows the impact
)f channel slope on DO in the WQ calibration flow model. The base model estimated channel properties using HEC-RAS cross -sectional data (side slopes, roughness
omfRcirnL bottom width, and channel slope) as manning equation inputs for each reach from Falls Data to Goldsbom. The channel slope is perhaps the hardest to estimate
Nith the moss sectional data as it is estimated from bottom elevation ofone cross section to another. This sensitivity analysis looked at three different methods for
:alculating channel slope, which we listed in order ofdecreasing level of detail for the basis: (I) HEC-RAS in -channel slope, after calibrating to USGS depth predictions,
2) Using the rough estimate of slope from Statements data ofelevation at beginning and end ofeach reach, and (3) Using an average slope number for all 31 reaches,
xProoderifing slope from Fells Data to Goldsboro. The HEC-RAS calibrated depths most closely match USGS depth predictions, notably in the low flow model which
SENSITIVITY OF QUAL2K-PREDICTED NEUSE RIVER DEPTH TO REACH CHANNEL SLOPE
-Note L Only major pradaries ho.4 MGDI and major NPDES sources am identified on the Nan. More minor sources are In hided In the QUAL2K model.
Callbrated HEC-RAS Channel Slope IBase Model
F
•USGS Stseamstats Slope
Awraae Channel slope
�. a USGS Depth Measurement
IT a
2.00
1.W
60
1.40
E
i
1.20 p
1.00
0.80
IJ_-_--___TL 0,60
L U �7`
a
1.0b, Bran[I;
0,40
a,
Creel,
Isoc- nCr -11
.,.
a=I.
:dfi Creek
Fair,Creek 020
,
� Smiln Creel. Ha'r:. _reel Wa_•,,.__
u
rol,cal
Branch
-
- `
61ah Creek
MJI Creek l,nle a'rver
.a V uV 1.
IS
`
1P94 "a 0.00
.r 1. 170 00 0 C. ..
_ _
=5 00
80.00 7000 60 00
50.00 4000 30.00 20.00 10.00 0.00
N oo,e
.._..
rzi, i Lora6on-
- -_.._._.._.,
Distance from Model Endpoint in Goldsboro
--,a
Ikm)
Baseline
sue_
(1) (2)
(1)
(2)
Calibrated
HEC-RAS
QUAL21K Distance- Channel
USGS
Average
Difference
Difference
-i Upstream of Goldsboro Slope (Base
Streamstats
Channel
from
from
(Model Endpoint) Model)
Slope
Slope
Baseline
Baseline
~ x(km) H, no
H, m
H, m
%
%
166.83 0,28
0.28
0.28
0.0%
0.0%
166.26 0.28
0.25
0.33
-13.7%
15.0%
-_, 166.70 0.28
0.251
0.33
1 -13.7%1
15.0%
165.13 0.29
0.25
0.33
-13.7%
15.0%
-- 164.67 0.29
0,25
0.31
-13.7%
15.0%
164.001 0.28
0.25
0.33
13.7%1
15.0%
V Dewberry Channel Slope Call Depth Page 37 of 83

x(km)
H, m
H, m I
H, m
166.83
0.28
0.28
0.28
166.26
0.28
0.25
0.33
163.44
0.29
0.25
0.33
162.87
0.29
0.25
0.33
162.31
0.29
0.25
0.33
161.74
0.29
025
0.33
161.18
0.29
0.25
0.34
161.02
0.40
0.56
0.60
160.86
0.40
0.56
0.50
160.71
0.40
0.561
0.60
160.66
0.40
0.56
0.60
160.39
0.40
0.56
0.60
160.24
0.40
0.56
0.60
160.08
0.40
0.56
0.50
169.92
0.40
0.56
0.60
169.77
0.40
0.56
0.60
159.61
0.40
0.56
0.60
159.07
0.37
0.49
0.37
168.53
0.38
0.49
0.37
167.98
0.38
0.49
0.37
167.44
0.38
0.50
0.37
156.90
0.38
0.50
0.37
156.36
0.38
0.50
0.37
166.81
0.38
0.50
0.37
165.27
0.38
0.50
0.37
164.73
0.39
0.51
0.38
164.19
0.39
0.51
0.38
163.70
0.47
0.49
0.47
153.21
0.47
0.491
0.47
152.72
0.47
0.49
0.47
152.23
0.47
0.49
0.47
151.74
0.47
0.49
0.47
161.26
0.47
0.49
0.47
160.77
0.47
0.49
0.47
160.28
0.48
0.50
0.48
149.79
0.48
0.50
0.48
149.30
0.48
0.50
0.48
148.88
0.32
0.54
0.36
148.46
0.32
0.54
0.36
148.03
0.32
0.541
0.36
147.61
0.32
0.54
0.36
147.18
0.32
0.54
0.36
146.76
032
0.55
0.36
146.33
0.32
0.55
0.36
146.91
0.32
0.55
0.36
146.49
0.32
0.55
0.36
145.06
0.32
0.55
0.36
142.86
4.80
4.80
4.80
142.46
0.34
0.31
0.43
142.06
0.34
0.321
0.43
141.66
0.34
0.32
0.43
141.26
0.34
0.32
0."
140.86
0.34
0.32
0.44
140.46
0.35
0.32
0.44
140.06
0.35
0.32
0.44
139.66
0.35
0.32
0.44
139.26
0.35
0.32
0.44
138.86
0.35
0.32
0."
138.68
0.42
0.43
0.61
138.51
0.42
0.431
0.51
138.33
0.42
0.43
0.61
138AIS
0.42
0.43
0.61
137.97
0.42
0.43
0.61
137.79
0.42
0.43
0.61
137.61
0.42
0.43
0.61
137.43
0.42
0.43
0.61
137.25
0.42
0.43
0.61
Dewberry Channel Slope Calc- Depth Page 38 of 83
...

x(km)
H, m
H, m
I H, m
166.83
0.28
0.28
0.28
166.26
0.28
0.25
0.33
137.08
0.42
0.43
0.61
136.62
0.52
0.49
0.61
136.17
0.52
0.49
0.61
136.72
0.52
0.49
0.61
135.27
0.52
0.49
0.61
134.82
0.52
0.49
0.61
134.37
0.52
0.49
0.61
133.92
0.52
0.491
0.61
133.47
0.52
0.49
0.61
133.02
0.52
0.49
0.61
132.57
0.52
0.49
0.61
132.12
0.54
0.55
0.64
131.67
0.54
0.55
0.54
131.21
0.54
0.55
0.64
130.76
0.54
0.55
0.64
130.31
0.54
0.55
0.54
129.86
0.54
0.55
0.54
129.41
0.54
0.551
0.54
128.96
0.55
0.55
0.64
128.60
0.55
0.55
0.64
128.06
0.71
0.72
0.70
127.86
0.90
0.96
0.79
127.66
0.90
0.96
0.79
127.44
0.90
0.96
0.79
127.24
0.90
0.96
0.79
127.04
0.90
0.96
0.79
126.84
0.90
0.96
0.79
126.63
0.90
0.961
0.79
126.43
0.90
0.96
0.79
126.23
0.90
0.96
0.79
126.03
0.90
0.96
0.79
125.54
0.67
0.63
0.68
126.06
0.68
0.63
0.68
124.67
0.68
0.63
0.68
124.09
0.68
0.63
0.68
123.60
0.68
0.63
0.68
123.12
0.68
0.63
0.68
122.63
0.68
0.631
0.68
122.15
0.68
0.63
0.68
121.66
0.68
0.63
0.68
121.18
0.68
0.63
0.68
120.98
0.59
320
0.57
120.78
0.59
3.20
0.57
120.68
0.59
3.20
0.67
120.38
0.59
3.20
0.57
120.18
0.59
3.20
0.57
119.99
0.59
3.20
0.57
119.79
0.59
3.201
0.57
119.59
0.59
3.20
0.57
119.39
0.59
3.20
0.57
119.19
0.59
3.20
0.57
118.71
0.57
0.70
0.66
118.23
0.57
0.70
0.66
117.76
0.57
0.70
0.55
117.27
0.57
0.70
O.Ss
116.79
0.57
0.70
0.66
116.31
0.57
0.70
0.56
115.82
0.57
0.701
0.55
116.34
0.57
0.70
0.56
114.86
0.57
0.70
0.56
114.38
0.58
0.71
0.65
114.01
0.50
0.47
0.59
113.63
0.51
0.47
0.60
113.26
0.51
0.47
0.60
112.88
0.51
0.47
0.60
19 Dewberry Channel Slope Calc- Depth Page 39 of 83

X(km)
H, m
H. m I
H, m
166.83
0.28
0.28
0.28
166.26
0.28
0.25
0.33
112.61
0.51
0.48
0.61
112.13
0.52
0.48
0.61
111.76
0.52
0.48
0.61
111.38
0.52
0.48
0.61
111.01
0.52
0.48
0.62
110.63
0.53
0.49
0.62
110.12
0.59
0.51
0.62
109.61
0.60
0.52
0.62
109.10
0.60
0.52
0.62
108.69
0.60
0.52
0.63
108.07
0.60
0.52
0.63
107.56
0.61
0.53
0.63
107.05
0.61
0.53
0.64
106.54
0.61
0.53
0.64
106.07
0.62
0.53
0.64
106.62
0.62
0.54
0.64
105.26
0.65
0.67
0.62
104.98
0.65
0.67
0.62
104.70
0.65
0.68
0.63
104.43
0.66
0.68
0.63
104.16
0.66
0.68
0.63
103.89
0.66
0.68
0.63
103.62
0.67
0.69
0.64
103.36
0.67
0.69
0.64
103.08
0.67
0.69
0.64
102.81
0.66
0.68
0.63
102.25
0.72
0.761
0.64
101.70
0.72
0.761
0.64
101.14
0.72
0.76
0.64
100.68
0.72
0.76
0.64
100.03
0.72
0.76
0.64
99.47
0.72
0.76
0.64
98.92
0.72
0.76
0.64
98.36
0.72
0.76
0.64
97.80
0.72
0.76
0.64
97.25
0.72
0.76
0.64
96.69
0.74
0.85
0.78
96.14
0.74
0.861
0.79
96.69
0.75
0.87
0.80
96.04
0.76
0.88
0.81
94.48
0.77
0.89
0.82
93.93
0.78
0.90
0.83
93.38
0.79
0.91
0.84
92.83
0.80
0.92
0.84
92.27
0.80
0.93
0.85
91.72
0.85
0.99
0.91
91.39
1.32
1.08
0.93
91.05
1.32
1.081
0.93
90.72
1.32
1.08
0.93
90.38
1.32
1.08
0.93
90.05
1.32
1.08
0.93
89.71
1.32
1.08
0.93
89.38
1.32
1.08
0.93
89.04
1.32
2.08
0.93
88.71
1.32
1.08
0.93
88.37
1.32
1.08
0.93
88.16
1.10
1.08
1.07
87.94
1.10
1.081
1.07
87.73
1.10
1.08
1.07
87.61
1.10
1.08
1.07
87.30
1.10
1.08
1.07
87.09
1.10
1.08
1.07
86.87
1.10
1.08
1.07
86.66
1.11
1.09
1.08
86.44
1.11
1.09
1.08
Dewberry Channel 51ope Calc- Depth
/►
Amok
.0-14
Page 40 of 83 -

X(km)
H, m
H, m
I H, m
166.83
0.28
0.28
0.28
166.26
0.28
0.25
0.33
86.23
1.11
1.09
1.08
86.07
1.02
1.02
0.89
85.91
1.02
1.02
0.89
85.76
1.02
1.02
0.89
85.69
1.02
1.02
0.89
85.43
1.02
1.02
0.89
85.27
L02
2.02
0.89
85.11
1.02
1.021
0.89
84.96
1.02
1.02
0.89
84.79
1.02
1.02
0.89
84.63
1.02
1.02
0.89
83.93
1.38
1.49
1.27
83.23
1.38
1.49
1.27
82.63
1.38
1.49
1.27
81.83
1.38
1.49
1.27
81.14
1.38
1.49
1.27
80.44
1.38
1.49
1.27
79.74
1.38
1.491
1.27
79.04
1.38
1.49
1.27
78.34
1.38
1.49
1.27
77.64
1.38
1.49
1.27
76.72
1.31
1.17
1.14
76.80
1.31
1.17
1.14
74.87
1.32
1.17
1.14
73.96
1.31
1.17
1.14
73.03
1.31
1.17
1.14
72.11
1.31
1.17
1.14
71.19
1.31
1.171
1.14
70.26
1.31
1.17
1.14
69.34
1.31
1.17
1.14
68.42
1.31
1.17
1.14
66.31
1.18
1.24
1.09
64.20
1.18
1.24
1.09
62.08
1.18
2.24
1.09
59.97
1.18
1.24
1.09
67.86
1.18
1.24
1.09
56.76
1.18
1.24
1.09
63.64
1.18
1.24
1.09
51.62
1.18
1.24
1.09
49.41
1.18
1.24
1.09
47.30
2.18
1.24
1.09
46.64
1.90
1.62
1.85
46.78
1.90
1.62
1.86
46.02
1.901
1.621
1.86
44.26
1.901
1.621
1.85
43.61
1.90
1.62
1.86
42.76
1.90
1.62
1.85
41.99
1.90
1.62
1.85
41.23
1.90
1.62
1.85
40.47
1.90
1.62
1.86
39.71
1.90
1.62
1.85
39.49
1.45
7.55
1.25
39.28
1.45
7.55
1.26
39.06
1.45
7.55
1.25
38.84
1.45
7.551
1.26
38.63
1.45
7.55
1.25
38.41
1.45
7.55
1.25
38.19
1.45
7.55
1.25
37.97
1.45
7.55
1.25
37.76
1.45
7.55
1.25
37.64
1.45
7.55
1.26
37.30
0.66
0.74
0.57
IN0.66
0.74
0.57
36.82
0.66
0.74
0.57
36.581
0.661
0.74
0.57
9 Dewberry Channel Slope Calk:- Depth Page 41 of 83

X(km)
H,m
H, m
H, m
166.83
0.28
0.28
0.28
166.26
0.28
0.25
0.33
36.34
0.66
0.74
0.67
36.10
0.66
0.74
0.67
36.86
0.66
0.74
0.67
36.62
0.66
0.74
0.67
35.38
0.66
0.74
0.67
36.14
0.66
0.74
0.57
34.58
0.83
0.71
0.65
34.01
0.83
0.711
0.65
33.46
0.83
0.71
0.66
32.89
0.83
0.71
0.65
32.33
0.83
0.71
0.65
31.76
0.83
0.71
0.65
31.20
0.83
0.71
0.66
30.64
0.83
0.71
0.66
30.07
0.83
0.71
0.66
29.61
0.83
0.71
0.66
27.46
0.95
0.93
0.78
26.39
0.95
0.93
0.78
23.33
0.95
0.93
0.78
21.27
0.95
0.93
0.78
19.21
0.95
0.93
0.78
17.15
0.95
0.93
0.78
16.09
0.95
0.93
0.78
13.03
0.95
0.93
0.78
10.97
0.95
0.93
0.78
8.91
0.95
0.93
0.78
8.02
0.81
1,251
0. 66
7.13
0.81
1.25
0.66
6.24
0.81
1.25
0.66
5.35
0.81
1.25
0.65
4.46
0.81
1.25
0.66
3.66
0.81
2.25
0.66
2.67
0.81
1.25
0.66
1.78
0.81
1.25
0.66
0.89
0.81
1.25
0.65
0.00
0.82
1.27
0.66
MIN DIFF -18.0% -29.2%
MAX DIFF 439.7% 27.0%
Dewberry Channel Slope Calc- Depth Page 42 of 83

r-s
NEUSE RIVER QUAL2K MOl SENSITIVITY ANALYSIS
PROJECT: NEUSE RIVER QUAL2K MODEL FOR TOWN OF CLAYTON NPDES
CLIENT: TOWN OF CLAYTON
LOCATION: 1000 Durham Street Extension; Clayton, NC 27528
PROJECT NUMBER: 50118315
DATE: 07/152020
Dais is a summary of Noose Rive QUAL2K model sensitivity r s follows:
Base Model Case: Low Flow Model, Daily Maximum NPDES discharge. LCWRF t 2.5 MGD
Sensitivity Input parameter: Tributary DO concentration
Output mathematical Neuse River DO profile mg(L)
DISCUSSION/RESULTS: The QUAL2K model from Falls Data to Goldsboro includes 25 tributaries modeled as point source contributions to the waterway. Water
luslity ofthe tributaries was estimated for the base model from ambient monitoring station in the tributary where available, in the Noose River near the confluence, and
ions NPDES smarec contributions to the tributary. This sensitivity analysis looked at the impact of DO for the tributaties. The base model estimates DO between 2 real to
i.4 mg/L in the tributaries at the confluence with the Neuse. The sensitivity analysis looked at the impact ofeeducing this assumption by 25%and 50%in the tributaries, so
he ranges of tributary DO in the sensitivity analyses are: from I mg/L to 4.8 mi and i mg/L to 3.2 mg/L, respectively. The results show varying the DO of mbutaries by -
15 %and -50%impacts DO profile by 2%, and 4.1 %, with the highest impact new tributaries with the highest flow (labeled on the graph below).
SENSITIVITY OF QUAL2K-PREDICTED NEUSE RIVER DO TO TRIBUTARY DISSOLVED OXYGEN
•ame 1: cry major tributaries (was Ali and major NPDU sources are idemmed on the than. Mere minor rwrtei are local more Qunux mosim.
-Nam 2: NPDES Rolm murce dlumaBers arc modeled at summer maximum daily reactors limits, unless otherwise acted.
10.00
• • Tributary DO from AMS (Be.)
9.00
• •Tributary 00: -25%from Baseline
• • us• • •Tributary DO- -50%from Baseline
as • AMS Data Min: 2009-2018
- -i• AMS Data Avg: 2009-2018 7.00
E
is 6.00 po
• c
•••N•• - 5.00 v
Crabtree creek Little Creek ww PIVPDEs1 as 0
Neuse River WWrP(NPDES) Johnston County WVP Lee steam Electric PlantiNPDES)
Smith Creek WWTP I -- 3,00
Southfield WTP
Poplar Creek
Small Herrin Creek Central Johnston County Regional Ali
Poplar Branch WWTF NPDE51 Goldsboro WRF flit DES1 2,00
�.
Mocassm Creek
Marks Creek S-ft Creel -
waluutCree4 rail,, creel Loo
Polecat Branch - -- -
Black Creek Mill Creek Little River
- --_io Y YY Y) r, u - Jr<r' • -'YYO _. - - __ O 0.00
180.00 170.00 160.00 150.00 14000 130.00 120.00 110.00 1000D 90.00 Bil 70,00 6000 50.00 4000 30,00 20.00 10.00 D.00
Neuse River location. Distance from Model Endpoint in Goldsboro (km)
QUAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCW RF 2.5 MGD
Model
Baseline
(1)
(2)
Tributary DO
from AMS
(Base)
Tributary
DO:-25%
from
Baseline
Tributary
DO:-50%
from
Baseline
x(km)
DO(mgi
DO(mgOl
DO(mjpOl
166.83
5.94
5.94
5.94
166.54
5.97
5.97
5.97
165.98
5.98
5,98
5.98
165.41
5.99
5.991
5.98
164.85
6.00
5.99
5.99
164.28
6.01
6.00
6.00
163.72
6.01
6.011
6.01
(1) (2)
Difference Difference
from from
Baseline Baseline
0.0% 0.0%
0.0% 0.0%
0.0% 0.0%
-0.1% -0.2%
-0.1% -0.2%
-0.1% -0.10.1%
-0.1% %
Q Dewberry
SENSITIVITY CASE: Tributary DO
7/20/2020

QUAL2K Discan<e-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Tributary DO
from AMS
(Base)
Tributary
DO:-25%
from
Baseline
Tributary
DO: -SO%
from
Baseline
x(km)
DO(mgO21L)
DO(mgO21L)
DO(mgO2,L)
163.15
6.02
6.02
6.01
162.59
6.02
6.02
6.02
162.02
6.03
6.03
6.03
161.46
6.03
6.03
6.03
161.10
6.05
6.05
6.05
160.94
6.06
6.06
6.06
160.79
6.07
6.07
6.07
160.63
6.08
6.08
6.08
160.47
6.09
6.09
6.09
160.32
6.11
6.10
6.10
160.16
6.12
6.11
6.11
160.00
6.12
6.12
6.12
169.86
6.13
6.131
6.13
169.69
6.14
6.14
6.14
169.34
6.06
6.05
6.04
168.80
5.82
5.81
5.80
158.26
5.76
5.75
5.74
157.71
5.70
5.69
5.68
167.17
5.66
5.65
5.64
166.63
5.62
5.62
5.61
166.09
5.59
5.59
5.58
156.64
5.57
5.57
5.56
165.00
5.55
5.551
5.54
164.46
5.54
5.53
5.52
163.94
5.54
5.53
5.52
153.46
5.54
5.53
5.52
152.97
5.54
5.53
5.53
152.48
5.54
5.53
5.53
161.99
5.54
5.54
5.53
161.60
5.54
5.54
5.53
151.01
5.55
5.54
5.54
160.62
5.56
5.54
5.52
150.03
5.56
5.541
5.53
149.64
5S6
5.55
5.54
149.09
5.65
5.63
5.62
148.66
5.72
5.71
5.70
148.24
5.78
5.77
5.76
147.82
5.83
5.82
5.81
147.39
5.87
5.87
5.86
146.97
5.91
5.91
5.90
146.56
5.95
5.94
5.93
146.12
5.98
5.97
5.96
145.70
6.00
6.001
5.99
145.28
6.02
6.02
6.02
144.95
6.07
6.06
6.06
144.73
6.11
6.10
6.10
144.61
6.14
6.14
6.13
144.29
6.17
6.17
6.17
144.07
6.20
6.20
6.20
143.86
6.23
6.22
6.22
143.63
6.25
6.25
6.25
143.41
6.27
6.27
6.27
143.19
6.29
6.291
6.29
142.97
6.31
6.31
6.30
142.66
6.33
6.33
6.32
14226
6.34
6.34
6.34
141.86
6.36
6.36
6.36
141.46
6.37
6.37
6.37
141.06
6.38
6.38
6.38
140.66
6.39
6.39
6.39
140.26
6.40
6.40
6.40
qv,' Dewberry SENSITIVITY CASE: Tributary DO
7/20/2020

QUAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1(
(2(
Tributary DO
from AMS
(Base(
Tributary
DO:-25%
from
Baseline
Tributary
DO:-50%
from
Baseline
x(km)
DO(mgO21L)
DO(mgO21L)
DO(mgO21L)
139.86
6.41
6.41
6.41
139.46
6.42
6.42
6.42
139.06
6.42
6.42
6.42
138.77
6.42
6.36
6.29
138.69
6.42
6.36
6.30
138.42
6.42
6.36
6.30
138.24
6.42
6.37
6.31
138.06
6.42
6.37
6.32
137.88
6.42
6.37
6.32
137.70
6.42
6.37
6.33
137.62
6.42
6.38
6.33
137.34
6.42
6.38
6.34
137.16
6.42
6.381
6.34
136.86
6.41
6.35
6.30
136.40
6.40
6.35
6.31
136.95
6.39
6.35
6.31
135.60
6.39
6.35
6.32
135.05
6.39
6.35
6.32
134.60
6.38
6.35
6.32
134.15
6.38
6.35
6.33
133.69
6.38
6.35
6.33
133.24
6.37
6.35
6.33
132.79
6.37
6.351
6.33
132.34
6.31
6.29
6.28
131.89
6.26
6.24
6.23
131.44
6.21
6.19
6.18
130.99
6.16
6.15
6.14
130.64
6.13
6.21
6.10
130.08
6.09
6.08
6.07
129.63
6.06
6.05
6.04
129.18
6.03
6.00
5.98
128.73
6.00
5.98
5.96
128.28
5.28
5.281
5.27
127.96
5.25
5141
5.23
127.76
5.21
5.21
5.20
127.65
5.18
5.17
5.16
127.34
5.14
5.14
5.13
127.14
5.11
5.10
5.10
126.94
5.08
5.07
5.06
126.74
5.05
5.04
5.03
126.63
5.01
5.01
5.00
126.33
4.98
4.98
4.97
126.13
4.95
4.95
4.94
125.78
4.93
4.9311
4.92
126.30
4.92
4.91
4.90
124.81
4.90
4.89
4.89
124.33
4.88
4.88
4.87
123.84
4.87
4.86
4.86
123.36
4.86
4.85
4.85
122.87
4.85
4.84
4.84
122.39
4.84
4.83
4.83
121.90
4.83
4.82
4.82
121.42
4.82
4.82
4.81
121.08
4.82
4.811
4.80
120.88
4.82
4.81
4.80
120.68
4.81
4.80
4.80
120.48
4.81
4.80
4.79
120.28
4.80
4.80
4.79
120.09
4.80
4.79
4.79
119.89
4.80
4.79
4.78
119.69
4.79
4.79
4.78
® Dewberry SENSITIVITY CASE: Tributary DO 7/20/2020

Ql1AL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
TributaryDO
from AMS
(Base)
Tributary
DO:-25%
from
Baseline
Tributary
DO:-50%
from
Baseline
x(km)
DO(m9O21L)
DO(mgO21L)
DO(mgO2)L)
119.49
4.79
4.79
4.78
119.29
4.79
4.78
4.78
118.96
4.78
4.78
4.77
118.47
4.78
4.771
4.77
117.99
4.78
4.77
4.76
117.51
4.77
4.77
4.76
117.03
4.77
4.77
4.76
116.66
4.77
4.77
4.76
116.06
4.77
4.77
4.77
116.58
4.78
4.77
4.77
115.10
4.78
4.78
4.77
114.62
4.80
4.80
4.80
114.19
4.87
4.86
4.86
113.82
4.92
4.921
4.92
113.44
4.98
4.97
4.97
113.07
5.03
5.02
5.02
112.69
5.07
5.07
5.07
112.32
5.12
5.12
5.11
111.94
5.16
5.16
5.16
111.67
5.20
5.20
5.20
111.19
5.24
5.24
5.23
110.82
5.27
5.27
5.27
110.38
5.28
5.27
5.27
109.86
5.28
5.281
5.28
109.36
5.28
S-28
5.28
108.84
5.29
5.29
5.29
108.33
5.29
5.29
5.29
107.82
5.30
5.30
5.30
107.31
5.31
5.30
5.30
106.80
5.31
5.31
5.31
106.28
5.32
5.32
5.32
106.77
5.33
5.33
5.33
106.38
5.32
5.31
5.31
106.11
5.31
5.301
5.30
104.84
5.30
5.29
5.29
104.57
5.29
5.29
5.28
104.30
5.28
5.28
5.28
104.03
5.27
5.27
5.27
103.76
5.26
5.26
5.26
103.48
5.26
5.26
5.26
103.21
5.25
5.25
5.25
102.94
5.25
5.25
5.25
102.63
5.22
5.22
5.22
101.97
5.19
5.191
5.19
101.42
5.17
5.17
5.17
100.86
5.15
5.15
5.15
100.31
5.13
5.13
5.13
99.76
5.12
5.12
5.12
99.19
5.11
5.11
5.11
98.64
5.10
5.10
5.10
98.08
5.09
5.09
5.09
97.53
5.09
5.09
5.08
96.97
5.13
5.13
5.13
96.42
5.16
5.161
5.16
95.87
5.20
5.20
5.20
96.31
5.23
5.23
5.23
94.76
5.27
5.27
5.26
94.21
5.30
5.30
5.29
93.65
5.32
5.32
5.32
93.10
5.35
5.35
5.35
92.55
5.38
5.38
5.38
A�
f�
r
Amok
r
Dewberry SENSITIVITY CASE: Tributary DO
r
7/20/2020 -.

QDAL2K Dirtance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Tributary DO
from AMS
(Base)
Tributary
DO:-25%
from
Baseline
Tributary
DO:-50%
from
Baseline
x(km)
DO(mgO21L)
DO(mgO21L)
DO(mgO21L)
92.00
5.41
5.38
5.34
91.66
5.35
5.32
5.28
91.22
5.29
5.25
5.22
90.88
5.22
5.19
5.16
90.65
5.17
5.13
5.10
90.21
5.11
5.08
5.05
89.88
5.05
5.02
4.99
89.64
5.00
4.97
4.94
89.21
4.95
4.92
4.89
88.87
4.90
4.88
4.85
88.64
4.86
4.83
4.80
88.26
4.92
4.81
4.71
88.06
4.92
4.821
4.72
87.84
4.92
4.83
4.73
87.62
4.93
4.83
4.74
87.41
4.93
4.94
4.75
87.19
4.93
4.84
4.75
86.98
4.94
4.85
4.76
86.77
5.04
4.96
4.88
86.55
5.03
4.95
4.88
86.34
5.02
4.95
4.87
86.16
5.01
4.94
4.86
85.99
5.00
4.931
4.85
85.83
4.99
4.92
4.85
85.67
4.98
4.91
4.84
85.61
4.97
4.90
4.83
85.35
4.96
4.89
4.82
86.19
4.95
4.88
4.82
35.03
4.94
4.87
4.81
84.87
4.93
4.86
4.80
84.71
4.92
4.85
4.79
84.28
4.91
4.83
4.74
$3.68
4,88
4.8011
4.72
82.88
4.86
4.78
4.71
82.18
4.84
4.76
4.69
81.48
4.82
4.75
4.68
80.79
4.80
4.74
4.67
80.09
4.79
4.72
4.66
79.39
4.77
4.71
4.65
78.69
4.76
4.70
4.65
77.99
4.75
4.70
4.64
77.18
4.73
4.67
4.62
76.26
4.70
4,661
4.61
76.34
4.69
4.64
4.60
74.41
4.67
4.63
4.59
73.49
4.66
4.62
4.58
72.67
4.65
4.61
4.58
71.65
4.64
4.61
4.58
70.73
4.64
4.61
4.58
69.80
4.64
4.61
4.58
68.88
4.64
4.61
4.58
67.36
4.71
4.68
4.65
66.25
4.77
4.751
4.72
63.14
4.83
4.81
4.79
61.03
4.89
4.87
4.85
58.92
4.94
4.93
4.91
56.80
5.00
4.98
4.97
54.69
5.05
5.04
5.02
52.68
5.10
5.09
5.08
50.47
5,14
5.13
5.13
48.36
5.19
5.18
5.17
00 Dewberry SENSITIVITY CASE: Tributary DO 7/20/2020

QUAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Tributary DO
from AMS
(Base)
Tributary
DO: -25%
from
Baseline
Tributary
DO: -50%
from
Baseline
x(km)
D0(mgO2A)
DO(mgO21L)
D0(mg02/L)
46.92
5.19
5.18
5.17
46.16
5.19
5.18
5.17
45.40
5.19
5.18
5.17
44.64
5.19
5.18
5.17
43.88
5.19
5.18
5.17
43.13
5.19
5.18
5.17
42.37
5.19
5.18
SAS
41.61
5.19
5.19
5.18
40.86
5.19
5.19
5.18
40.09
5.20
5.19
5.18
39.60
5.12
5.08
5.04
39.38
5.12
5.08
5.04
39.17
5.12
5.08
5.04
38.96
5.12
5.08
5.04
38.73
5.12
5.08
5.04
38.52
5.12
5.G8
5.04
38.30
5.12
5.08
5.05
38.08
5.12
5.08
5.05
37.87
5.12
5.08
5.05
37.66
5.12
5.09
5.05
37.42
5.15
5.11
5.08
37.18
5.18
5.151
5.12
36.94
5.22
5.18
5.15
36.70
5.25
5.21
5.18
36.46
5.28
5.24
5.21
3612
5.30
5.27
5.24
36.98
5.33
5.30
5.27
36.74
5.36
5.33
5.30
35.60
5.38
5.35
5.33
36.26
SA1
5.38
5.35
34.86
5.37
5.33
5.30
34.30
5.39
5.361
5.33
33.73
5.40
5.38
5.35
33.17
5.42
5.40
5.37
32.61
5.44
5.41
5.39
32.04
5.46
5.43
5.41
31.48
5.47
5.45
5.43
30.92
5.48
5.46
5.45
30.35
5.50
5.48
5.46
29.79
5.51
5.49
5.48
28.48
5.46
5.45
5.44
26.42
S."
5.431
5.41
24.36
5.42
5.41
5.40
22.30
5.41
5.40
5.39
20.24
5.40
5.40
5.39
18.18
5.41
5.40
5.39
16.12
5.41
5.40
5.40
14.06
5.42
5.41
5.41
12.00
5.42
5,42
5.42
9.94
5A4
5.43
5.43
BAB
5.45
5.40
5.34
7.57
5.51
5.461
5.41
6.68
5.56
5.52
5.47
6.79
5.61
5.57
5.53
4.90
5.65
5.62
5.58
4,01
5.69
5.66
5.63
3.12
5.72
5.70
5.67
2.23
5.76
5.73
5.71
1,34
5.79
5.76
5.74
0.46
5.72
5.70
5.68
0.00
5.72
5.70
5.68
9 Dewberry SENSITIVITY CASE: Tributary DO
Imo.
r
Ian
7/20/2020 -
/--k

aey
Low Flow,
LCWRF 2.5 IVIED
Model
Baseline I
(1)
1 (2)
Tributary
Tributary
QUAL21K Distance-
Tributary DO
DO:-25%
DO: -SO%
Upstream of Goldsboro
from AMS
from
from
(Model Endpoint)
(Base)
Baseline
Baseline
x(km)
DO(mgO21L)
I DO(mgOYL)
I DO(m9021L)
(1) (2)
DWerence
OlRemnce
from
from
Basellne
Baseline
MIN DIFF -2.0%
-4.1%
MAX DIFF 0.0%
0.0%
@ Dewberry
SENSITIVITY CASE: Tributary DO
7/20/2020

NEUSE RIVER QUAL2K MODEL, SENSITIVITY ANALYSIS
PROJECT: NEUSE RIVER QUAL2K MODEL FOR TOWN OF CLAYTON NPDES
CLIENT: TOWN OF CLAYTON
LOCATION: 1000 Dwham Street Extension; Clayton, NC 27529
PROJECT NUMBER: 50118315
DATE: 07/1512020
This is a summary of Neuse Rive QUAL2K model sensitivity as follows:
Base Model Case: Low Flow Model, Daily Maximum NPDES discharge, LCWRF Q 15 MOD
Sensitivity Input parameter: Tributary BOD concentration
Output parameterls): Ncuse River DO profile (mg/L)
DISCUSSION/RESU Li The QUAL2K model from Falls Dam to Goldsboro includes 25 tributaries modeled as point somrce contributions to the waterway. Water
quality ofthe tributaries was estimated for the base model from ambient monitoring station in the tributary where available, in the Noose River new the confluence, and
from NPDES source contributions to the tributary. This sensitivity analysis looked at the impact of GOD for the tributaries. The base model estimates background BODS of
3 mi al estimated as 4.29 mall.) in tributaries. Tom's Creek and Beddingfield Creek are exceptions. where BOD5 was derived from NPDES dischargers m these
creeks; however, Tom's Creek and Beddingfield Creek have inflow less than 0.05 ms/s, so total loading is low and expected to have relatively low impact. The sensitivity
analysis looked at the impact of increasing the background GODS to 9 mi and down to I mall. (and for Tom's and Beddingfield. 3s, and 1/3 of base BOD in the
tributaries). The results show varying the BUDS of tributaries from 1 mg/L to 9 mg/L impacts DO profile less than 2%.
SENSITIVITY OF QUAL2K-PREDICTED NEUSE RIVER DO TO TRIBUTARY BOD
•Nate 1: Unty major tributaries (xi) 25 MGD) and major NPDES spumes sardentifietl ofthe dart. Mereminwswlms are imumal to the QDAtlx modes.
•Note 2: NPDES palm souse dischargers are modeled st summer maximum daily decharae Ilmm, unless otherwbe noted.
D.DD
Tributary' 3 mall. B005 or AMS
• data(bare)
• Tributary: 9 mg/L will or Sir AMS 9.00
• data
• • all, AMS
Tributary: I mirk SODS or 1/3a
•
asAMS data F-t am
• • AMS Data Min: 2009-2018
• AMS Data Avg: 2009-2018 700 _
E
r • � 6.00ou
p
bLSCSSLi
• 60���", scD no
0
Crabtree Creekl Lille Creek WWTP(NPDES)I • 4.00
Neuse River WWTP(NPDES) Johnston County WTPSteam Electric Plant NPDF9i is
Smth Creek WWTP I Smithfield WTP 3.00
r Cerl
Smith Creel, Harris Creek oopl Central Johnston County Reg -al
Poplar Branch WWTF(NPDES) Goldsboro W'RF(NPDfS) 2.00
Mm Creek
Mar! ,Creek S-ft`r ek
Walnut Creek Pole:a: 0ranch FaILnS Creek 1.00
Black Creek MillC-1 Sir. River
x➢ • •Y W o u 0 - er •• • -4 D.00
180At 1'0.00 150 nC ISO CC 14000 130.00 120,00 11000 10000 9000 30.00 7000 5000 50.00 40 CO 30.00 2000 10.00 000
Neuse River Location- Distance from Model Endpoint in Goldsboro (km)
QUAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.S MGD
Model
Baseline
(1)
(2)
Tributary:3
mg/LBOD5
or AMS data
(Base)
Tributary:9
mg/LBOOS
or 3x AMS
data
Tributary:I
mg/LBODS
orl/3x AMS
data
x(km)
DO(mgOYA.)
DO(mgOi
DO(mgOl
166.83
5.94
5.94
5.94
166.64
5.97
5.97
5.97
166.98
5.98
5.90
5.98
166.41
5.99
5.99
5.99
164.851
6.001
6.001
6.00
(I) (21
Difference Difference
from from
Baseline Baseline
% i
0.0e.6 0.0%
0.0% 0.0%
0.0% 0.0%
0.0% 0.0%
9 Dewberry SENSITIVITY CASE: TributaryBOD
Alaak
Oasis,
7/20/2020
Joao

QUAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Tributary:3
mg/L BODS
or AMS data
(Base)
Tributary:9
mg/L BODS
or 3z AMS
data
Tributary:)
mg/L BODS
or 1/3z AM5
data
X(km)
DO(mg021L)
DO(mg021L)
DO(mg021L)
164.28
6.01
6,00
6.01
163.72
6.01
6.01
6.01
163.16
6.02
6.02
6.02
162.69
6.02
6.021
6.02
162.02
6.03
6.03
6.03
161.46
6.03
6.03
6.03
161.10
6.05
6.06
6.05
160.94
6.06
6.06
6.06
160.79
6.07
6.07
6.07
160.63
6.08
6.08
6.08
160.41
6.09
6.09
6.10
160.32
6.11
6.10
6.11
160.16
6.12
6.11
6.12
160.00
6.12
6A2
6.13
169.86
6.13
6.13
6.13
159.69
6.14
6.14
6.14
159.34
6.06
6.06
6.06
168.80
5.82
5.82
5.82
168.26
5.76
5.75
5.76
167.71
5.70
5.70
5.70
167.17
5.66
5.66
5.66
156.63
5.62
5.62
5.63
156.09
5.59
5.591
5.60
165.64
5.57
5.571
5.57
165.00
5.55
5.55
5.56
164.46
5.54
5.53
5.54
163.94
5.54
5.53
5.54
163.46
5.54
5.53
5.54
162.97
5.54
5.53
5.54
152.48
5.54
5.53
5.54
161.99
5.54
5.53
5.54
151.60
5.54
5.54
S.SS
161.01
5.55
5.54
5.55
160.62
5.56
5.551
5.56
150.03
5.56
5.55
5.56
149.64
5.56
5.55
5.57
149.09
5.65
5.64
5.65
148.66
5.72
5.71
5.72
148.24
5.78
5.77
5.78
147.82
5.83
5.82
5.83
147.39
5.87
5.87
5.88
146.97
5.91
5.91
5.92
146.66
5.95
5.94
5.95
146.12
5.98
5.971
5.98
146.70
6.00
5.99
6.00
145.28
6.02
6.02
6.03
144.95
6.07
6.06
6.07
144.73
6.11
6.10
6.11
144.61
6.14
6.13
6.14
144.29
6.17
6.17
6.18
144.07
6.20
6.19
6.20
143.85
6.23
6.22
6.23
143.63
6.25
6.24
6.25
143.41
6.27
6,271
6.27
143.19
6.29
6.28
6.29
142.97
6.31
6.30
6.31
142.66
6.33
6.32
6.33
142.26
6.34
6.34
6.35
141.86
6.36
6.35
6.36
141.46
6.37
6.36
6.37
141.06
6.38
6.38
6.39
9 Dewberry- SENSITIVITY CASE: Tributary BOD 7/20/2020

ODAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Tributary:3
mg/L BODS
or AMS data
(Base)
Tributary:9
mg/L BOD5
or 3x AMS
data
Tributary:)
mg/L BODS
or 1/3x AMS
data
x(km)
DO(m9021L)
DO(mgO21L)
DO(mgO21L)
140.66
6.39
6.39
6.40
140.26
6.40
6.40
6.40
139.86
6.41
6.40
6.41
139.46
6.42
6.41
6.42
139.06
6.42
6.42
6.43
138.77
6.42
6.42
6.43
138.69
6.42
6.41
6.42
138.42
6.42
6.41
6.42
138.24
6.42
6.41
6.42
138.06
6.42
6.41
6.42
137.88
6.42
6.41
6.42
137.70
6.42
6.41
6.42
137.62
6.42
6.41
6.42
137.34
6A2
6.41
6.42
137.16
6.42
6.41
6.42
136.86
6.41
6.39
6.41
136.40
6.40
6.39
6.40
135.95
6.39
6.38
6.40
135.60
6.39
6.37
6.39
136.06
6.39
6.37
6.39
134.60
6.38
6.36
6.39
134.15
6.38
6.361
6.39
133.69
6.38
6.36
6.38
133.24
6.37
6.35
6.38
132.79
6.37
6.35
6.38
132.34
6.31
6.29
6.32
131.89
6.26
6.23
6.26
131.44
6.21
6.18
6.21
130.99
6.16
6.24
6.17
130.54
6.13
6.10
6.13
130.08
6.09
6.07
6.10
129.63
6.06
6.041
6.07
129.18
6.03
6.00
6.04
128.73
6.00
5.97
6.01
128.28
5.28
5.27
5.29
127.96
5.25
5.24
5.25
127.76
5.21
5.20
5.22
127.66
5.18
5.17
5.18
127.34
5.14
5.13
5.15
127.14
5.11
5.10
5.11
126.94
5.08
5.07
5.08
126.74
5.05
5.031
5.05
126.63
5.01
5.00
5.02
126.33
4.98
4.97
4.99
126.13
4.95
4.94
4.96
125.78
4.93
4.92
4.94
126.30
4.92
4.90
4.92
124.81
4.90
4.89
4.90
124.33
4.88
4.87
4.89
123.84
4.87
4.86
4.87
123.36
4.86
4.84
4.86
122.87
4.85
4.83
4.85
122.39
4.84
4.82
4.84
121.90
4.83
4.81
4,83
121.42
4,82
4.81
4.83
121.08
4.82
4.811
4.82
120.88
4.82
4.80
4.82
120.68
4.81
4.80
4.82
120.48
4.81
4.79
4.81
120.28
4.80
4.79
4.81
120.09
4.80
4.79
4.81
€' Dewberry SENSITIVITY CASE: Tributary BOD
^x
/A
AWN
/'q
0 ►
7/20/2020
I^

QDAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Tributary:3
mg/LBODS
or AMS data
(Base)
Tributary:9
mg/LBODS
or 3x AMS
data
Tributary:)
mg(LBOD5
or 1/3a AMS
data
x(km)
DO(mgO2)L)
DO(mgO2/L)
DO(mgO21L)
119.89
4.80
4.78
4.80
119.69
4.79
4.78
4.80
119.49
4.79
4.78
4.80
119.29
4.79
4.781
4.79
118.96
4.78
4.77
4.79
118.47
4.78
4.77
4.78
117.99
4.78
4.76
4.78
117.51
4.77
4.76
4.78
117.03
4.77
4.76
4.78
116.65
4.77
4.76
4.78
116.06
4.77
4.76
4.78
115.68
4.78
4.76
4.78
115.10
4.78
4.77
4.78
114.62
4.80
4.791
4.81
114.19
4.87
4.85
4.87
113.82
4.92
4.91
4.93
113.44
4.98
4.96
4.98
113.07
5.03
5.01
5.03
112.69
5.07
5.06
E08
112.32
5.12
5.11
S.12
111.94
5.16
5.15
5.26
111.67
5.20
5.19
S.20
111.19
5.24
5.23
5.24
110.82
5.27
5.261
5.28
110.38
5.28
5.26
5.28
109.86
5.28
5.27
5.28
109.35
5.28
5.27
5.29
108.84
5.29
5.28
5.29
108.33
5.29
5.28
5.30
107.82
5.30
5.29
5.30
107.31
5.31
5.29
5.31
106.80
5.31
5.30
5.32
106.28
5.32
5.31
5.32
105.77
5.33
5.32
5.33
106.38
5.32
5.30
5.32
105.11
5.31
5.29
5.31
104.84
5.30
5.28
5.30
104.67
5.29
5.27
5.29
104.30
5.28
5.27
5.28
104.03
5.27
5.261
5.27
103.76
5.26
5.25
5.27
103.48
5.26
5.24
5.26
103.21
5.25
5.24
5.25
102.94
5.25
S.23
5.25
102.63
5.22
5.21
S.22
101.97
5.19
5.18
5.20
101.42
5.17
5.16
5.17
100.86
5.15
5.14
5.15
100.31
5.13
5.12
5.14
99.75
5.12
5.111
5.12
99.19
5.11
5.09
5.11
98.64
5.10
5.08
5.10
98.08
5.09
5.08
5.30
97.53
5.09
5.07
5.09
96.97
5.13
5.11
5.13
96.42
5.16
SAS
5.17
95.87
5.20
5.19
5.20
95.31
5.23
5.22
S.
94.76
5.27
5.25
5.27
94.21
5.30
5.28
5.30
93.66
5.321
5311
5.33
''? DE!Wt3El2'C]ISENSITIVITY CASE: Tributary BOD 7/20/2020

QUAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCW BF 2.5 MGD
Model
Baseline
(1)
(2)
Tributary:3
mg/LBODS
ar AMS data
(ease)
Tributary:9
mg/LBODS
or 3z AMS
data
Tributary:1
mg/LBODS
or 1/3z AMS
data
x(km)
DO(mgO211.)
DO(mgO27L)
DO(mgO2/L)
93.10
5.35
5.34
5.35
92.65
5.38
5.36
5.38
92.00
5.41
5.40
5.42
91.65
5.35
5.34
5.35
91.22
5.29
5.27
5.29
90.88
5.22
5.21
5.23
90.55
5.17
5.15
5.17
90.21
5.11
5.09
5.11
89.88
5.05
5.03
5.06
89.64
5.00
4.98
5.01
89.21
4.95
4.93
4.96
88.87
4.90
4.88
4.91
88.64
4.86
4.831
4.87
88.26
4.92
4.89
4.92
88.05
4.92
4.89
4.93
87.84
4.92
4.90
4.93
87.62
4.93
4.90
4.93
87.41
4.93
4.90
4.94
87.19
4.93
4.90
4.94
86.98
4.94
4.91
4.95
86.77
5.04
5.01
5.05
86.65
5.03
5.00
5.04
86.34
5.02
5.001
5.03
86.16
5.01
4.98
5.02
$5.99
5.00
4.97
5.01
85.83
4.99
4.96
5.00
86.67
4.98
4.95
4.99
85.51
4.97
4.94
4.98
86.35
4.96
4.92
4.97
85.19
4.95
4.91
4.96
86.03
4.94
4.90
4.95
84.87
4.93
4.89
4.94
84.71
4.92
4.881
4.93
84.28
4.91
4.87
4.92
83.68
4.88
4.84
4.90
82.88
4.86
4.82
4.87
82.18
4.84
4.79
4.85
81.48
4.82
4.77
4.83
80.79
4.80
4.75
4.82
80.09
4.79
4.73
4.80
79.39
4.77
4.72
4.79
78.69
4.76
4.71
4.78
77.99
4.75
4.691
4.77
77.18
4.73
4.67
4.75
76.26
4.70
4.64
4.72
76.34
4.69
4.62
4.71
74.41
4.67
4.61
4.69
73.49
4.66
4.59
4.68
72.67
4.65
4.58
4.67
71.65
4.64
4.57
4.67
70.73
4.64
4.57
4.66
69.80
4.64
4.57
4.66
68.88
4.64
4,571
4,66
67.36
4.71
4.64
4.73
65.26
4.77
4.70
4.80
63.14
4.83
4.76
4.85
61.03
4.89
4.81
4.91
58.92
4.94
4.87
4.97
56.80
5.00
4.92
5.02
54.69
5.05
4.97
5.07
52.58
5.10
5.02
5.12
" Dewberry S E NSITIVITY CASE: Tributary BOD
7/20/2020
/"y

QDAL2N Distance-
Upstream at Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Tributary; 3
mg/L SODS
orAMSdata
(Base)
Tributary: 9
mg/LBODS
or3x AMS
data
Tributary; 1
mg/LBODS
or1/3x AMS
data
x(km)
DO(mgO2/L)
DO(mgO21L)
DO(mgO2A)
50.47
5.14
5.07
5.17
48.36
5.19
5.12
5.21
46.92
5.19
5.11
5.21
46.16
5.19
5.11
5.21
45.40
5.19
5.11
5.21
44.64
5.19
5.11
5.21
43.88
5.19
5.11
5.21
43.13
5.19
5.11
5.21
42.37
5.19
5.11
5.21
41.61
5.19
5.12
5.22
40.85
5.19
5.12
5.22
40.09
5.20
5.12
5.22
39.60
5.12
S.041
5.14
39.38
5.12
5.04
5.14
39.17
5.12
5.04
5.14
38.95
5.12
5.04
5.14
38.73
5.12
5.04
5.14
38.62
5.12
5.04
5.14
38.30
5.12
5.04
5.14
38.08
5.12
5.04
5.14
37.87
5.12
5.04
5.15
37.66
5.12
5.04
5.15
37.42
5.15
5.071
SAS
37.18
5.18
5.11
5.21
36.94
5.22
5.14
5.24
36.70
5.25
5.17
5.27
36.46
5.28
5.20
5.30
36.22
5.30
5.23
5.33
35.98
5.33
5.26
5.36
35.74
5.36
5.29
5.38
35.60
5.38
5.31
5.41
35.26
5.41
5.34
5.43
34.86
5.37
5,301
5.39
34.30
5.39
5.31
5.41
33.73
5.40
5.33
5.43
33.17
5,42
5.35
5.45
32.61
5.44
5.37
5.46
32.04
SAS
5.38
5.48
31.48
5.47
5.39
5.50
30.92
5.48
5.41
5.51
30.36
5.50
5.42
5.52
29.79
5.51
5.44
5.54
28.48
SAS
5.381
5.49
26.42
5.44
5.351
5.47
24.36
5.42
5.33
SAS
22.30
5.41
5.32
5.44
20.24
5.40
5.31
5."
18.18
5.41
5.31
5.44
16.12
5.41
5.32
5.44
14.06
5.42
5.32
5.45
12.00
5.42
5.33
5.46
9.94
5.44
5.34
5.47
8.46
5.45
5.36
5.48
7.67
5.51
5.421
5.54
6.68
5.56
5.47
5.59
5.79
5.61
5.52
5.64
4.90
5.65
5.56
5.68
4.01
5.69
5.60
5.72
3.12
5.72
5.64
5.75
2.23
5.76
5.67
5.79
1.34
5.79
5.70
5.81
0 Dewberry SENSITIVITY CASE: Tributary BOD 7/20/2020

QDAL$N Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCW RF 2.5 MGD
Model
Baseline
(1)
1 (2)
Tributary:3
mg/L BODS
orAMSdata
(Base)
Tributary:9
mg/L GODS
or 3x AMS
data
Tributary:)
mg/L BODS
orl/3x AMS
data
x(km)
DO(mgO21L)
DO(mgO24-)
DO(mgO21L)
0.46
5.72
5.64
5.75
0.00
5.72
5.64
5.75
(1)
(2)
Difference
Difference
from
from
Baseline
Baseline
1.4%
0.5%
-1.4%
0.5%
MIN DIFF -1.7%
0.0%
MAX DIFF 0.0%
0.6%
'`i Dewberry SENSITIVITY CASE: Tributary B00 7/20/2020

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OWIA
NEUSE RIVER QUALIK MODEI4 SENSITIVITY ANALYSIS
PROJECT: NEUSE RIVER QUAL2K MODEL FOR TOWN OF CLAYTON NPDES
CLIENT: TOWN OF CLAYTON
LOCATION: 1000 Dmham Soon Extension; Clayton, NC 27528
PROJECT NUMBER: 50118315
DATE: 07/152020
'his is a summary of Neuse Rive QUA12K model sensitivity as follows:
Base Model Case: Low Flow Model, Daily Maximum NPDES discharge, LCWRF Q 2.5 MUD
Sensitivity Input parameter: Tributary NH3- N concentration
Output parameter(s): Neuse River DO profile (nal
)ISCUSSION/RESULTS: The QUAL2K model from Falls Dam to Goldsbom includes 25 tributaries modeled as point source contributions to the waterway. Water
ryality ofthe tributaries was estimated for the base model from ambient monitoring station in the tributary where available, in the Neuse River new the conguence, and
iom NPDES source contributions to the tributary. This sensitivity analysis looked at the impact ofNH3-N for the tributaries. The base model mainly estimates NH3-N
iom AMS data in tributaries and in the Neuse River new the canguenx with tributaries; and most of the larger tributaries estimate NH3-N contribution <0.5 mg/L. The
sensitivity analysis looked at the impact of increasing the NH3-N 2x and 12x. The results show varying the NH3-N of tributaries by double and half impacs DO profile
was than 1%.
SENSITIVITY OF QUAL2K-PREDICTED NEUSE RIVER DO TO TRIBUTARY 'i
'Nora 1: Doty majmtn etades Taos hall maim lHiMmuras are identifietl on the darsou n. More mInm sources me inducted in the QUAl models,
'Note 2: NPDES poim source tllschargers are modeletl at summer maalmum daily discharge Ilmhs, unless othervdse noted.
1o.oD
ITributary -NH3-N=AMS Data
• (Be.)
YTHbutary NH3-N=2x Base 9.00
• • • • •Tributary NH3-N=112x Baxe
• 8.00
YAMS Data Min: 20M-2018
• AMS Data Avg: 2009.20M 7.00
E
• _...._ - 6.00 Gp
• e
�YNNU••
- Y YY•YNY• 5.00 v
iG tree Gee - -
Little Creek WVJrP (NPOE5) 4.00 O
Ninuse River WWIP INPDES)i �J h ston County N4P lee Seem Elend[Plant (NPDES) 1r
r( -
SmitNC ek W 1 SmltbLeltl WTP 3.00
SmithCreek Harris Creek IP Plar Creek Central Johnston Count, Regional
Pc,lar Branch WWiF(NPDES) Goldsboro WPF(NPDES) 2.00
Mo ac iii n Creek
Marks Creel S.vlh Creel
Walnut Creek Polecat Branch Falling Creek 100
31srk Creek. Mill Creek Little River
-- )2 - Y YY W u u ai 4 "YYY Yn00
180.00 170.00 Iso.00 150.00 14000 13000 120.00 110.03 100.00 90.00 `80.00 710,00 60.00 50.00 40.00 30.00 20LD 10,00 0,00
Neuse River Location- Distance from Model Endpoint in Goldsboro (km)
QUiDistance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Tributary -
NH3-N=
AMS Data
(Base)
Tributary
NH3-N = 2x
Base
Tributary
Nil =
1/2x Base
x(km)
DO(mg02/y
DO(mg02/L)
DO(mg02/L)
166.83
5.94
5,94
5.94
166.54
5.97
5.97
5.97
166.98
5.98
5.98
5.98
165.41
5.99
5.991
5.99
164.86
6.00
6.00
6.00
164.28
6.01
6.00
6.01
163.72
6.01
6.011
6.01
Q Dewberry
(1) (2)
Difference Difference
from from
Baseline Baseline
% %
0.0% 0.0%
0.0% 0.0%
0.0% 0.0%
0.0% O.o%
0.0% 0.0%
D.D% 0.0%
0.0% 0. %%
SENSITIVITY CASE: Tributary NH3
7/20/2020

QUAL2KDistance-
Upstream of Goldsboro
(Model Endpoint)
Law Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Tributary -
NH3-N =
AMS Data
(Base)
Tributary
NH3-N = 2x
Base
Tributary
NH3-N =
1/2x Base
x(km)
DO(mgO2/L)
DO(mgO2&) I
DO(mgO21L)
163.16
6.02
6MI
6.02
162.69
6.02
6.02
6.02
162.02
6.03
6.03
6.03
161.46
6.03
6.03
6.04
161.10
6.05
6.05
6.05
160.94
6.06
6.06
6.06
160.79
6.07
6.07
6.07
160.63
6.08
6.08
6.08
160.47
6.09
6.09
6.10
160.32
6.11
6.10
6.11
160.16
6.12
6.111
6.12
160.00
6.12
6.12
6.13
159.86
6.13
6.13
6.13
159.69
6.14
6.14
6.14
169.34
6.06
6.06
6.06
168.80
5.82
5.82
5.82
168.26
5.76
5.75
5.76
167.71
5.70
5.70
5.70
167.17
5.66
5.66
5.66
166.63
5.62
5.62
5.63
166.09
5.59
5.591
5.60
155.54
5.57
5.57
5.57
155.00
5.55
5.55
5.56
154.46
5.54
5.54
5.54
153.94
5.54
5.53
5.54
163.46
5.54
5.53
5.54
152.97
5.54
5.53
5.54
162.48
5.54
5.53
5.54
151.99
5.54
5.53
5.54
151.50
5.54
5.54
5.55
151.01
5.55
5.541
5.55
150.52
5.56
5.55
5.56
160.03
5.56
5.55
5.56
149.54
5.56
5.56
5.57
149.09
5.65
5.64
5.65
148.66
5.72
5.71
5.72
148.24
5.78
5.77
5.78
147.82
5.83
5.82
5.83
147.39
5.87
5.87
5.88
146.97
5.91
5.91
5.92
146.56
5.95
5.94
5.95
146.12
5.98
5.97
5.98
146.70
6.00
6.00
6.01
146.28
6.02
6.02
6.03
144.95
6.07
606
6.07
144.73
6.11
6.10
6.11
144.51
6.14
6.14
6.14
144.29
6.17
6.17
6.18
144.07
6.20
6.20
6.20
143.86
6.23
6.22
6.23
143.63
6.25
6.251
6.25
143.41
6.27
6.27
6.27
143.19
6.29
6.29
6.29
142.97
6.31
6.30
6.31
142.66
6.33
6.32
6.33
142.26
6.34
6.34
6.35
141.86
6.36
6.35
6.36
141.46
6.37
6.37
6.37
141.06
6.38
6.38
6.39
140.66
6.39
6.39
6.40
140.26
6.401
6.40
6.40
ram.
'! Dewberry' SENSITIVITY CASE: Tributary NH3
7/20/2020
/ss,

QUAL2N Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Tributary -
NH3-N =
AVIS Data
(Base)
Tributary
NH3-N=2x
Base
Tributary
NH3-N=
1/2x Base
x(km) -
DO(mgO2/1J
DO(mgO21L)
DO(mgOYL)
139.86
6.41
6.41
6.41
139.46
6.42
6.41
6.42
139.06
6.42
6.42
6.43
138.77
6.42
6.42
6.42
138.59
6.42
6.42
6.42
138.42
6.42
6.42
6.42
138.24
6.42
6.42
6.42
138.06
6.42
6.42
6.42
137.88
6.42
6.41
6.42
137.70
6.42
6.41
6.42
137.62
6.42
6.41
6.42
137.34
6.42
6.41
6A2
137.16
6.42
6.411
6.42
136.85
6.41
6.40
6.41
136.40
6.40
6.39
6.40
136.96
6.39
6.38
6.40
135.60
6.39
6.38
6.39
135.06
6.39
6.37
6.39
134.60
6.38
6.37
6.39
134.16
6.38
6.37
6.39
133.69
6.38
6.36
6.38
133.24
6.37
6.36
6.38
132.79
6.37
6.361
6.38
132.34
6.31
6.29
6.32
131.89
6.26
6.24
6.26
131.44
6.21
6.19
6.22
130.99
6.16
6.15
6.17
130.64
6.13
6.11
6.13
130.08
6.09
6.07
6.10
129.63
6.06
6.04
6.07
129.18
6.03
6.00
6.04
128.73
6.00
5.96
6.01
128.28
5.28
5.271
5.29
127.96
5.25
5.23
5.26
127.76
5.21
5.20
5.22
127.65
5.18
5.16
5.19
127.34
5.14
5.13
5.15
127.14
5.11
5.09
5.12
126.94
5.08
5.06
5.09
126.74
5.05
5.03
5.06
126.63
5.01
4.99
5.02
126.33
4.98
4.96
4.99
126.13
4.95
4.93
4.97
125.78
4.93
4.91
4.95
126.30
4.92
4.89
4.93
124.81
4.90
4.87
4.91
124.33
4.88
4.86
4.90
123.84
4.87
4.84
4.98
123.36
4.86
4.83
4.87
122.87
4.85
4.82
4.86
122.39
4.84
4.81
4.85
121.90
4.83
4.80
4.84
121.42
4.82
4.79
4.84
121.08
4.82
4.79
4.84
120.88
4.82
4.79
4.83
120.68
4.81
4.78
4.83
120.48
4.81
4.78
4.82
120.28
4.80
4.77
4.82
120.09
4.80
4.77
4.82
119.89
4.801
4.771
4.81
119.69
4.791
4.761
4.81
T: Dewberry- SENSITIVITY CASE: Tributary NH3 7/20/2020

QUAL2KDistance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Tributary-
NH3-N=
AMS Data
(Base)
Tributary
NH3-N=2x
Base
Tributary
NH3-N=
1/2x Base
x(km)
DO(mgO21L)
DO(mgO2/L)
DO(mgO2Q
119.49
4.79
4.76
4.81
119.29
4.79
4.76
4.81
118.95
4.78
4.75
4.80
118.47
4.78
4.75
4.79
117.99
4.78
4.74
4.79
117.61
4.77
4.74
4.79
117.03
4.77
4.74
4.79
116.65
4.77
4.74
4.79
116.06
4.77
4.74
4.79
116.68
4.78
4.74
4.79
115.10
4.78
4.75
4.80
114.62
4.80
4.77
4.82
114.19
4.87
4.841
4.88
113.82
4.92
4.891
4.94
113.44
4.98
4.95
4.99
113.07
5.03
5.00
5.04
112.69
5.07
5.05
5.09
112.32
5.12
5.09
5.13
111.94
5.16
5.13
5.17
111.67
5.20
5.17
5.21
111.19
5.24
5.21
5.25
110.82
5.27
5.25
5.29
110.38
5.28
5.25
5.29
109.86
5.28
5.251
5.29
109.35
5.28
5.26
5.30
108.84
5.29
5.26
5.30
108.33
5.29
5.27
5.31
107.82
5.30
5.27
5.31
107.31
5.31
5.28
5.32
106.80
5.31
5.29
5.32
106.28
5.32
5.30
5.33
106.77
5.33
5.30
5.34
106.38
5.32
5.29
5.33
105.11
5.31
S.281
5.32
104.84
5.30
5.27
5.31
104.57
5.29
5.26
5.30
104.30
5.28
5.25
5.29
104.03
5.27
5.25
5.28
103.76
5.26
5.24
5.28
103.48
5.26
5.23
5.27
103.21
5.25
5.23
5.26
102.94
5.25
5.22
5.26
102.63
5.22
5.19
5.23
101.97
5.19
5.171
5.20
101.42
5.17
5.14
5.18
100.86
5.15
5.13
5.16
100.31
5.13
5.11
S.
99.76
5.12
5.09
5.13
99.19
5.11
5.08
5.12
98.64
5.10
5.07
5.11
98.08
5.09
5.07
5.30
97.53
5.09
5.06
5.10
96.97
5.13
5.10
5.14
96.42
5.16
5.141
5.18
96.87
5.20
5.181
5.21
95.31
5.23
5.21
5.24
94.75
5.27
5.24
5.28
94.21
5.30
5.27
5.31
93.66
5.32
5.30
5.33
93.10
5.35
5.33
5.36
92.66
5.38
5.36
5.39
Dewberry SENSITIVITY CASE: Tributary NH3
P►
7/20/2020
T

QUAL2KOistance-
Upstream of Goldsboro
(Model Endpoint(
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1(
(2(
Tributary-
NH3-N=
AMS Data
(Base(
Tributary
NH3-N=2x
Base
Tributary
NH3-N=
1/2x Base
x(km)
DO(mgO2/L)
0O(mgO2/L)
DO(mgO21L)
92.00
5.41
5.40
5.42
91.55
5.35
5.33
5.36
91.22
5.29
5.27
5.30
90.88
5.22
5.201
5.23
90.56
5.17
5.14
5.18
90.21
5.11
5.09
5.12
89.88
5.05
5.03
5.07
89.64
5.00
4.98
5.01
89.21
4.95
4.93
4.96
88.87
4.90
4.88
4.92
88.54
4.86
4.83
4.87
88.26
4.92
4.89
4.93
88.06
4.92
4.90
4.93
87.84
4.92
4.90
4.93
87.62
4.93
4.90
4.94
87.41
4.93
4.91
4.94
87.19
4.93
4.91
4.94
86.98
4.94
4.91
4.95
86.77
5.04
5.01
5.06
86.55
5.03
5.01
5.04
86.34
5.02
5.00
5.03
$6.15
5.01
4.99
5.02
85.99
5.00
4.95
5.01
86.83
4.99
4.97
5.00
86.67
4.98
4.96
4.99
85.51
4.97
4.95
4.98
$6.35
4.96
4.94
4.97
85.19
4.95
4.93
4.96
85.03
4.94
4.92
4.95
84.87
4.93
4.91
4.94
84.71
4.92
4.90
4.93
84.28
4.91
4.891
4.92
83.68
4.88
4.86
4.89
82.88
4.86
4.84
4.87
82.18
4.84
4.81
4.85
81.48
4.82
4.80
4.83
80.79
4.80
4.78
4.81
80.09
4.79
4.76
4.80
79.39
4.77
4.75
4.78
78.69
4.76
4.74
4.77
77.99
4.75
4.73
4.76
77.18
4.73
4.701
4.74
76.26
4.70
4.68
4.72
76.34
4.69
4.66
4.70
74.41
4.67
4.65
4.68
73.49
4.66
4.63
4.67
72.67
4.65
4.63
4.66
71.66
4.64
4.62
4.66
70.73
4.64
4.62
4.65
69.80
4.64
4.62J5.06
68.88
4.64
4.62
67.36
4.71
4.69
65.25
4.77
4.75
63.14
4.83
4.81
61.03
4.89
4.87
68.92
4.94
4.92
66.80
5.00
4.98
64.69
5.05
5.03
62.58
5.10
5.08
5.10
50.47
5.14
5.13
S.
48.36
5.19
5.17
5.19
ANW\
ff Dewberry SENSITIVITY CASE: Tributary NH3 7/20/2020

QUAL2KDistance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD Model
Baseline
(1)
(2)
Tributary-
NH3-N=
AMS Data
(Base)
Tributary
NH3-N=2x
Base
Tributary
NH3-N=
1/2x Base
x(km)
DO(m9O211.)
D0(m9O2L)
DO(m9O22)
46.92
5.19
5.17
5.19
46.16
5.19
5.17
5.19
46.40
5.19
5.17
5.19
44.64
5.19
5.17
5.19
43.88
5.19
5.27
5.19
43.13
5.19
5.17
5.20
42.37
5.19
5.17
5.20
41.61
5.19
5.18
5.20
40.86
5.19
5.18
5.20
40.09
5.20
5.18
5.20
39.60
5.12
5.10
5.12
39.38
5.12
5.1011
5.12
39.17
5.12
5.10
5.12
38.95
5.12
5.10
5.12
38.73
5.12
5.10
5.12
38.62
5.12
5.10
5.12
36.30
5.12
5.10
5.13
38.08
5.12
5.10
5.13
37.87
5.12
5.10
5.13
37.66
5.12
5.10
5.13
37.42
5.15
5.24
5.16
37.18
5.18
5.27
5.19
36.94
5.22
5.20
5.22
36.70
5.25
5.23
5.25
36.46
5.28
5.26
5.28
36.22
5.30
5.29
5.31
35.98
5.33
5.32
5.34
36.74
5.36
5.34
5.36
36.60
5.38
5.37
5.39
36.26
5.41
5.39
5.41
34.86
5.37
5.351
5.37
34.30
5.39
5.37
5.39
33.73
5.40
5.39
5.41
33.17
5.42
5.41
5.43
32.61
5.44
5.42
5.45
32.04
5.46
5.44
5.46
31.48
5.47
5.45
5.48
30.92
5.48
5.47
5.49
30.36
5.50
5.48
5.51
29.79
5.51
5.49
5.52
28.48
5.46
5.451
5.47
26.42
5.44
5.42
5.45
24.36
5.42
5.40
5.43
22.30
5.41
5.39
5.42
20.24
5.40
5.39
5.41
18.18
5.41
5.39
5.41
16.12
5.41
5.39
5.42
14.06
5.42
5.40
5.42
12.00
5.42
5.41
5.43
9.94
5.44
5.42
5.44
8.46
5.45
5.431
5.45
7.67
5.51
5.49
5.51
6.68
5.56
5.54
5.57
6.79
5.61
5.59
5.61
4.90
5.65
5.63
5.66
4.01
5.69
5.67
5.70
3.12
5.72
5.71
5.73
2.23
5.76
5.74
5.76
1.34
5.79
5.77
5.79
0.46
5.72
5.71
5.73
0.00
5.721
5.711
5.73
Dewberry- SENSITIVITY CASE: Tributary NH3
h
T
rON
f^
M4
P\
ay
PON
Ia�4
�1
�1
Oft,
r
t�
000k
7/20/2020

Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Tributary -
QUAL2K Distance-
NH3-N=
Tributary
Tributary
Upstream of Goldsboro
AMS Data
NH3-N = 2x
NH3-N =
(Model Endpoint)
(Base)
Base
1/2x Base
x(km)
0O(mgO21L)
I DO(mgO21y
I DO(mgOYL)
(1) (2)
Difference Dill
fro from
Baseline Baseline
MIN DIFF -0.7% 0.0%
MA%DIFF 0.0% 0.3%
Dewberry SENSITIVITY CASE: Tributary NH3 7/20/2020

NEUSE RWER QUAL2K MODEL- SENSITIVITY ANALYSIS
PROJECT: NEUSE RIVER QUAL2K MODEL FOR TOWN OF CLAYTON NPDES
CLIENT: TOWN OF CLAYTON
LOCATION: 1000 Durham Street Extension; Clayton, NC 27528
PROJECT NUMBER: 50118315
DATE: 071IM020
DESCRIPTION:
Dais is a summary of Neuse Rive QUAL2K model sensitivity as follows:
Base Model Cane: Low Flow Model, Daily Maximam NIMES discharge, LC WRF @ 2.5 MGD
Sensitivity Input parameter: Sediment Oxygen Demand (SOD)
Output parameter(s): Neuse River DO profile (cl
DISCUSSION/RESULTS: The QUAL2K model fiom Falls Data to Goldsboro models consumption of oxygen in the waterway partially due to sediment oxygen demand.
I'll SOD oxidation rate may be calculated internally by QUAL2K or may be an input parameter for each ofthe 31 reaches. The base model used an SOD measured in an
EPA report at Falls Data (2018) of 1.15/d; this rate was temperature corrected to 95th percentile AMS data along the river for the base model. This sensitivity analysis
looked at the impact of varying the base model SOD miss by S20%. It also compared the model -internal calculation of SOD (and NN4 and P flux rates). The results show
hat varying the SOD by 20% impacts DO prediction in the waterway by 4-6%. It also shows that the QUAL2K internal SOD calculation predicts extremely high SOD (and
s large DO drop)just downstream of the Neuse River W WTP; this is not assumed to be a field condition that would actually be observed, and is rather a model artifact due
a calculation ofan equilibrium condition in this section of the river with sediment.
SENSITIVITY OF QUAL2K-PREDICTED NEUSE RIVER DO TO SOD
-Nine 1: Only majutdbutaries gal Man) and major NPQESaaurms art IdemMed an the than. More minors urtts are included In the m1A13K models.
-Iwe 2: NPDES xI. rouree disadvi ors art modeled at summermaalmumdied, discharge limits, unless comes. need.
e SOD=1.15/d @ 20C least)
•SOD = mines'20%
• SOD = Be. -20S6
• QUAUK<eLuleted SOD
*AMS Data Min: 2009.2018
• AMS Data Avg: 2009-2018
/an
10.00
9.00
8.0D
7.00
E
6.00
W
i
SOO O
L
sa
Crabtree Creek I - --- -- - • 400 'o
Little Creek AMP INPDESI
Neuse Rrver WWTP IN PDESI Johnston County WTP Lee 5mam Electric Plant INPDESI
Smith Creek WWtP Smithfield WTP 3.00
Smite Paaar Creole Creek Harris Creek Centrallohnrton County Regional i
ocular 2ranrh WWLF (NPOES) Goldsboro WRF INPDESI 2,00
Mecassin Creek
Mark, Cries - Svah Creel.
Walnut Creek PoloeaJ Branch Falling Creek. 1.00
t
Black Creek Mill Creek ball, Rrver
180.00 17D.00 160.00 15DOO 140.00 130.00 120.00 110.00 100.00 90.00 80.00 70.00 60.00 50.00 40.00 30LOO 20.00 10.00 0.00
Neuse River Location- Distance from Model Endpoint in Goldsboro (lot
4UALZK Distance-
UpstreamofGoldsbaro
(Model Endpoint)
Low Flow, LCWRF 2.5 MGD Model
Baseline
(1)
(2)
(3)
SOD=1.15/d
9 20C (Base)
SOD=Base
+20%
SOD=Base-
20%
QUAL2K-
calculated
SOD
x(km)
DO(m902Q
DO(mgi
DO(mgOl
DO(mg07A)
166.83
5.94
5.94
5.94
5.94
166.64
5.97
5.92
6.02
5.86
166.98
5.98
5.8B
6.07
5.79
166 * 411
5.99
5.85
6.11
5.74
164.861
6.00
5.83
6.14
5.71
164.28
6.01
5.82
6.16
5.69
163.721
6,011
frail
6.18
5.68
(1)
(2)
(3)
Difference
from
Baseline
DiBereneir from
Baseline
Difference
from
Baseline
0.0%
0.0%
0.0%
-1.0%
0.8%
-1.9%
-1.7%
1.4%
-3.2%
-2.3%
1.9%
-4.2%
-2
2.3%
A.8%
In
2.61
-5.2%
-3.4%1
2.81
-5.5%
'.:' DeWberrV SENSITIVITY CASE: SOD Rate 7/20/2020

Ql1AL2K Distance-
UpstreamofGoldshoro
(Model Endpoint)
Low
Flow, LCWRF
2.5 MGD Model
Baseline
(1)
(2)
(3)
SOD=1.15/d
@ 20C (Base)
SOD=Base
+20%
SOD=Base-
20%
QUAL2K-
calmlated
SOD
x(km)
DO(mgO21L)
DO(mgONL)
DO(mgO21L)
DD(mgO2A)
163.15
6.02
5.80
6.20
5.68
162.59
6.02
5.79
6.22
5.69
162.02
6.03
5.79
6.23
5.70
161.46
6.03
5,79
6.24
5.71
161.10
6.05
5.80
8.25
5.73
160.94
6.06
5.82
6.26
5.74
160.79
6.07
5.83
6.27
5.76
160.63
6.08
5.84
6.29
5.77
160.47
6.09
5.85
6.30
5.79
160.32
6.11
5.87
6.30
5.80
160.16
6.12
5.88
6.31
5.82
160.00
6.12
5.89
6.32
5.83
169.85
6.13
5.90
6.33
5.85
169.69
6.14
5.91
6.34
5.86
169.34
6.06
5.81
6.27
5.78
158.80
5.82
5.59
6.01
5.50
158.26
5.76
5.51
5.96
5.37
167.71
5.70
5.45
5.91
5.27
157.17
5.66
5.40
5.88
5.19
166.63
5.62
5.35
5.85
5.13
156.09
5.59
5.31
5.83
5.08
155.64
5.57
5.28
5.81
5.05
156.00
5.55
5.261
5.80
5.02
154.46
5.54
5.24
5.79
5.01
153.94
5.54
5.24
5.79
5.01
153.45
5.54
5.24
5.79
5.02
162.97
5.54
5.24
5.79
5.03
152.48
5.54
5.24
5.79
5.05
161.99
5.54
5.24
5.79
5.06
161.50
5.54
5.24
5.79
5.07
161.01
5.55
5.25
5.80
5.09
160.52
5.56
5.26
5.80
5.11
160.03
5.56
5.261
5.81
5.13
149.64
5.56
5.27
5.81
5.15
149.09
5.65
5.36
5.89
5.25
148.66
5.72
5.43
5.95
5.33
148.24
5.78
5.50
6.01
5.41
147.82
5.83
5.56
6.06
SAS
147.39
5.87
5.60
6.10
5.54
146.97
5.91
5.65
6.14
5.60
146.55
5.95
5.68
6.17
5.65
146.12
5.98
5.72
6.19
5.69
146.70
6.00
5.74
6.22
5.73
146.28
6.02
5.77
6.24
5.77
144.96
6.07
5.82
6.28
5.82
144.73
6.11
5.86
6.31
5.87
144.61
6.14
5.90
6.34
5.91
144.29
6.17
5.93
6.37
5.95
144.07
6.20
5.97
6.40
5.99
143.86
6.23
5.99
6.42
6.02
143.63
6.25
6.02
6.44
6.05
143.41
6.27
6.04
6.46
6.08
143.19
6.29
6.071
6.48
6.11
142.97
6.31
6.08
6.49
6.13
142.66
6.33
6.11
6.51
6.16
142.26
6.34
6.13
6.52
6.18
141.86
6.36
6.14
6.54
6.21
141.46
6.37
6.16
6.55
6.23
141.06
6.38
6.17
6.561
6.25
140.66
6.39
6.18
6.571
6.26
140.26
6.40
6.19
6.58
6.28
139.86
6.41
6.20
6.58
6.29
(1)
(2)
(3)
Difference
from
Baseline
Difference from
Baseline
Difference
from
Baseline
-3.6%
3.0%
-5.6%
-3.8%
3.2%
-5.6%
-4.0%
3.3%
-5.5%
4.1%
3.4%
-5.4%
-4.1%
3.4%
-5.3%
4.0%
3.4%
-5.2%
-4.0%
3.3%
-5.2%
-4.0%
3.3%
-5.1%
-3.9%
3.3%
-57%
-3.9%
3.3%
-4.9%
-3.9%
3.3%
4.8%
-3.9%
3.2%
7.8%
-3.9%
3.2%
-4.7%
-3.8%
3.2%
4.6%
-4.1%
3.4%
-0.7%
-3.9%
3.3%
-5.5%
-4.2%
3.5%
-6.6%
-4.4%
3.7%
-7.5%
A.7%
3.9%
-8.3%
-4.9%
4.1%
-8.8%
-5.0%
4.2%
-9.2%
-5.2%
4.3%
-9.4%
-5.3%
4.4%
-9.5%
-5.4%
4.5%
-9.6%
-5.4%
4.5%
-9.4%
-5.4%
4.5%
-9.3%
-5.4%
4.5%
-9.1%
-5A%
4.5%
-8.9%
-5.4%
4.5%
-8.7%
-5.4%
4.5%
-8.5%
-5.4%
4.5%
-8.2%
-5.3%
4.5%
-7.9%
-5.3%
4.5%
-7.7%
-5.4%
4.5%
-7.5%
-5.1%
4.3%
-7.1%
-5.0%
4.1%
-6.7%
-4.8%
4.0%
-6.3%
-4.7%
3.9%
-6.0%
-4.6%
3.8%
-5.6%
-4.5%
3.7%
-5.3%
-4.4%
3.7%
-5.0%
-4.4%
3.6%
-4.8%
4.3%
3.6%
4.556
4.3%
3.6%
-4.3%
4.1%
3.5%
AN
4.0%
3A%
-3.9%
4.0%
3.3%
-3.7%
-3.9%
3.2%
-3.6%
-3.8%
3.2%
-3.4%
-3.7%
3.1%
-3.3%
-3.7%
3.1%
-3.2%
-3.6%
3.0%
-3.0%
-3.6%
3.0%
-2.9%
-3.5%
3.0%
-2.8%
-3.5%
2.9%
-2.7%
-3.4%
2.9%
-2.5%
-3.4%
2.8%
-2.4%
-3.4%
2.8%
-2.3%
-3.3%
2.8%
-2.2%
-3.3%
2.7%
-2.1%
-3.3%
2.7%
-2.0%
-3.2%
2.7%
-1.9%
?2 Dewberry SENSITIVITY CASE: SOD Rate 7/20/2020

gllAL2K Distance-
UpstreamofGolds6oro
(Model Endpoint)
Low
Flow, LCWRF
2.5 IVIED Model
Baseline
(1)
(2)
(3)
SOD=1.15/d
@ 20C (Base)
SOD=Base
+20%
SOD=Base-
20%
QUAL2K-
calculated
SOD
x(km)
DO(mg021L)
DO(mg02/L)
DO(mgO2&)
DO(mgOM)
139.46
6.42
6.21
6.59
6.30
139.06
6.42
6.22
6.60
6.31
138.77
6.42
6.22
6.59
6.32
138.69
6.42
6.22
6.59
6.32
138.42
6.42
6.22
6.59
6.32
138.24
6.42
6.2.2
6.59
6.32
138.06
6.42
6.22
6.59
6.32
137.88
6.42
6.22
6.59
6.32
137.70
6.42
6.22
6.59
6.32
137.52
6A2
6.22
6.59
6.32
137.34
6.42
6.22
6.59
6.32
137.16
6.42
6.22
6.59
6.32
136.86
6A1
6.21
6.57
6.31
136.40
6.40
6.20
6.57
6.30
135.96
6.39
6.191
6.56
6.30
135.50
6.39
6.19
6.56
6.30
136.06
6.39
6.18
6.56
6.30
134.60
6.38
6.18
6.55
6.30
134.16
6.38
6.17
6.55
6.29
133.69
6.38
6.17
6.55
6.30
133.24
6.37
6.17
6.55
6.29
132.79
6.37
6.16
6.54
6.29
132.34
6.31
6.09
6.49
6.23
131.89
6.26
6.03
6.44
6.18
131A4
6.21
5.97
6.40
6.13
130.99
6.16
5.92
6.36
6.08
130.64
6.13
5.88
6.33
6.05
130.08
6.09
5.84
6,30
6.01
129.63
6.06
5.80
6.28
5.98
129.18
6.03
5.77
6.24
5.95
128.73
6.00
5.73
6.22
5.92
128.28
5.28
5.18
5.37
5.17
127.95
5.25
5.14
5.33
5.12
127.75
5.22
5.10
5.30
5.04
127.66
5.18
5.071
5.27
4.99
127.34
5.14
5.03
5.24
4.92
127.14
5.11
5.00
5.21
4.86
126.94
5.08
4.96
5.28
4.80
126.74
5.05
4.93
5.15
4.75
126.63
5.01
4.89
5.12
4.69
126.33
4.98
4.86
5.09
4.64
126.13
4.95
4.83
5.06
4.58
126.78
4.93
4.80
5.04
4.50
125.30
4.92
4.78
5.03
4.43
124.81
4.90
4.761
5.02
4.36
124.33
4.88
4.74
5.00
4.30
123.84
4.87
4.72
4.99
4.24
123.36
4.86
4.71
4.98
4.19
122.87
4.85
4.69
4.98
4.15
122.39
4.84
4.68
4.97
4.11
121.90
4.83
4.67
4.96
4.07
121.42
4.82
4.66
4.96
4.04
121.08
4.82
4.66
4.96
4.02
120.88
4.82
4.65
4.96
4.00
120.68
4.81
4.641
4.95
3.98
120.48
4.81
4.64
4.95
3.96
120.28
4.80
4.63
4.95
3.95
120.09
4.80
4,63
4.95
3.93
119.89
4.80
4.62
4.95
3.92
119.69
4.79
4.62
4.94
3.90
119.49
4.79
4.61
4.94
3.89
119.29
4.79
4.61
4.94
3.88
F' Dewberry SENSITIVITY CASE: SOD Rate
(1)
(2)
(3)
Difference
horn
Baseline
Difference fmm
Baseline
Difference
from
Baseline
-3.2%
2.7%
-1.8%
-3.2%
2.7%
-1.85G
-3.1%
2.6%
-1.7%
-3.1%
2.6%
-1.7%
-3.1%
2.6%
-1.7%
-3.1%
2.6%
-1.6%
-3.1%
2.6%
-1.6%
-3.1%
2.6%
-1.6%
-3.1%
2.6%
-1.6%
-3.1%
2.6%
-1.6%
-3.1%
2.6%
-1.6%
-3.2%
2.6%
-1.6%
-3.1%
2.6%
-1.5%
-3.2%
2.6%
-1.5%
-3.2%
2.6%
-1.5%
-3.2%
2.7%
-1.4%
-3.2%
2.7%
-1.4%
-3.2%
2.7%
-1.4%
-3.2%
2.7%
-1.3%
-3.2%
2.7%
-1.3%
-3.2%
2.7%
-1.3%
-3.3%
2.7%
-1.3%
-3.4%
2.9%
-1.3%
-3.6%
3.0%
-1.3%
-3.8%
3.1%
-1.3%
-3.9%
3.3%
-1.3%
-4.0%
3.4%
-1.3%
-4.1%
3.5%
-1.3%
-4.2%
3.5%
-1.3%
-4.3%
3.6%
-1.3%
-4.4%
3.7%
71.4%
-2.9%
1.6%
-2.2%
-2.0%
1.7%
-2.7%
-2.1%
1.7%
-3.3%
-2.1%
1.8%
-3.8%
-2.2%
1.8%
-4.3%
-2.2%
1.9%
-4.9%
-2.3%
1.9%
-5.4%
-2.4%
2.0%
-5.9%
-2.4%
2.0%
-6.5%
-2.5%
2.1%
-7.0%
-2.5%
2.1%
-77;
-2.7%
2.2%
-8.7%
-2.8%
2.3%
-9.9%
-2.9%1
2.4%
-10.9%
-2.9%
2.5%
-11.9%
-3.0%
2.5%
-12.8%
-3.1%
2.6%
-137i
-3.2%
2.7%
-14.4%
-3.3%
2.7%
-15.1%
-3.3%
2.8%
7.7%
-3.4%
2.8%
-16.3%
-3.4%
2.9%
-16.6%
-3.5%
2.9%
-16.9%
-3.5%
2.9%
-17.3%
-3.6%
3.0%
-17.6%
-3.6%
3.0%
-17.8%
-3.6%
3.0%
-18.1%
-3.7%
3.1%
73.7%
3.1%
-18.6%
-3.8%
3.1%
-18.6%
-3.8%
3.2%
-19.0%
r-�
I^
7/20/2020

QUAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low
Flow, LCWRF
2.5 MGD Model
Baseline
(1)
(2)
(3)
SOD = 1.15/d
@ 20C (Base)
SOD = Base
Q0%
SOD = Base -
20%
QUAL2K-
calculated
SOD
x(km)
DO(mgO21Q
DO(mg02/L)
DO(mgO2/L)
DO(mg02q-)
118.95
4.78
4.60
4.94
3.85
118.47
4.78
4.59
4.94
3.83
117.99
4.78
4.58
4.94
3.81
117.61
4.77
4.58
4.94
3.79
117.03
4.77
4.57
4.94
3.78
116.66
4.77
4.57
4.94
3.78
116.06
4.77
4.57
4.95
3.78
116.68
4.78
4.57
4.95
3.78
115.10
4.78
4.57
4.95
3.79
114.62
4.80
4.60
4.98
3.94
114.19
4.87
4.66
5.04
3.92
113.82
4.92
4.72
5.09
4.00
113.44
4.98
4.78
5.14
4.07
113.07
5.03
4.831
5.19
4,14
112.69
5.07
4.881
5.24
4.20
112.32
5.12
4.92
5.28g4..'542
111.94
5.16
4.97
5.32
111.57
5.20
5.01
5.36
111.19
5.24
5.05
5.40
110.82
5.27
5.09
5.43
110.38
5.28
S.D9
5.43
109.86
5.28
5.09
5.44
4.54
109.36
5.28
5.09
5.44
4.56
109.84
5.29
5.10
5.457
4.58
108.33
5.29
5.101
5.45
4.61
107.82
5.30
5.11
5.46
4.63
107.31
5.31
5.12
5.46
4.65
106.80
5.31
5.12
5.47
4.68
106.28
5.32
5.13
5.48
4.70
105.77
5.33
5.14
5.49
4.73
106.38
5.32
5.12
5.48
4.72
105.11
5.31
5.11
5.47
4.72
104.84
5.30
5.10
5.46M4..7
104.67
5.29
5.09
5.45
104.30
5.28
5.08
5.44
104.03
5.27
5.07
5.43
103.76
5.26
5.07
5.43
103.48
5.26
5.06
5.42
103.21
5.25
5.05
5.42
102.94
5.25
5.05
5.41
102.53
5.22
5.02
5.39
101.97
5.19
4.99
5.36
4.68
101.42
5.17
4.96
5.34
4.67
100.86
5.15
4.94
5.33
4.66
100.31
5.13
4.92
5.31
4.65
99.75
5.12
4.91
5.30
4.65
99.19
5.11
4.89
5.29
4.65
98.64
5.10
4.88
5.28
4.66
98.08
5.09
4.87
5.27
4.66
97.53
5.09
4.86
5.27
4.67
96.97
5.13
4.91
5.31
4,73
96.42
5.16
4.951
5.34
4.78
95.87
5.20
4.99
5.37
4.83
95.31
5.23
5.03
5.41
4.88
94.76
5.27
5.06
S.44
4.93
94.21
5.30
5.09
5.46
4.98
93.65
5.32
5.13
5.49
5.02
93.10
5.35
SAS
5.51
5.06
92.65
5.38
5.18
5.54
5.10
92.00
5.41
5.23
5.57
5.15
91.55
5.35
5.16
5.51
5.10
91.22
5.29
5.09
5.45
5.04
(1)
(2)
(3)
Difference
from
Baseline
Difference from
Baseline
Difference
from
Baseline
-3.9%
3.2%
-19.5%
-4.0%
3.3%
-20.05i
-4.0%
3.4%
-20.3%
-4.1%
3.4%
-20.5%
-4.2%
3.S%
-20.7%
-4.2%
3.5%
-20.8%
-4.3%
3.6%
-20.8%
-4.3%
3.6%
-20.8%
-4.4%
3.7%
-20.7%
-4.3%
3.6%
-20.1%
-4.2%
3.5%
-19.5%
-4.1%
3.4%
-18.9%
-4.0%
3.4%
-18.3%
-3.9%
3.3%
-17.7%
-3.9%1
3.2%
-17.2%
-3.8%
3.2%
-16.6%
-3.7%
3.1%
-16.1%
-3.7%
3.1%
-15.6%
-3.6%
3.0%
-15.2%
-3.5%
3.0%
-14.7%
-3.6%
3.0%
-14.4%
-3.6%
3.0%
-14.0%
-3.6%
3.0%
-13.7%
-3.6%
3.0%
-13.3%
-3.6%1
3.0%
-13.0%
-3.6%
3.0%
-12.6%
-3.6%
3.0%
-22.3%
-3.6%
3.0%
-12.0%
-3.6%
3.0%
-11.6%
-3.6%
3.0%
-11.3%
-3.6%
3.0%
-11.2%
-3.6%
3.0%
-11.1%
-3.6%
3.0%
-11.0%
-3.7%
3.1%
-30.8%
-3.7%
3.1%
-10.7%
-3.7%
3.1%
-10.6%
-3,7%
3.1%
-10.5%
-3.7%
3.1%
-10.4%
-3.8%
3.1%
-10.3%
-3.8%
3.2%
-30.3%
-3.9%
3.2%
-10.0%
-3.9%
3.3%
-9.9%
-4.0%
3.3%
-9.7%
-4.1%
3.4%
79.5%
-4.1%
3.5%
-9.3%
-4.2%
3.5%
-9.1%
-4.2%
3.5%
-8.9%
-4.3%
3.6%
-8.7%
-4.3%
3.6%
-8.5;
-4.3%
3.6%
-8.2%
-4.2%
3.5%
-7.8%
-4.1%
3.4%
-7.4%
-4.0%
3.4%
-7.0%
-3.9%
3.3%
-6.7%
-3.9%
3.2%
-6.3%
-3.8%
3.2%A-6.0%-3.7%
3.1%-3.7%
3.1%-3.6%
3.0%-3.5%
2.9%-3.6%
3.0%-3.7%
3.1%
@� Dewberry SENSITIVITY CASE: SOD Rate 7/20/2020

QDAL2K Distance-
UpstreamofGoldsboro
(Model Endpoint)
Low Flow, LCWRF 2.5 MGD Model
Baseline
(1)
(2)
(3)
SOD=1.15/d
@ 20C (Base)
SOD=Base
♦20%
SOD=Base-
20%
QUAL2K-
calculated
SOD
x(km)
D0(mgO21L)
DO(mgO2A)
DO(mgO21L)
30(mgO21L)
90.88
5.22
5.02
5.39
4.98
90.55
5.17
4.96
5.34
4.93
90.21
5.11
4.90
5.28
4.88
89.88
5.05
4.84
5.23j4.75
89.64
5.00
4.78
5.18
89.21
4.95
4.73
5.14
88.87
4.90
4.68
5.09
88.54
4.96
4.63
5.05
88.26
4.92
4.70
5.10
88.05
4.92
4.70
5.30
87.84
4.92
4.71
5.10
87.62
4.93
4.71
5.11
87.41
4.93
4.71
5.11
4.76
87.19
4.93
4.72
5.11
4.76
86.98
4.94
4.72
5.12
4.77
86.77
5.04
4.84
5.20
4.88
86.65
5.03
4.83
5.19
4.87
86.34
5.02
4.83
5.19
4.87
86.16
5.01
4.81
5.18
4.85
86.99
5.00
4.80
5.17
4.94
85.83
4.99
4.79
5.16
4.83
86.67
4.98
4.78
5.IS
4.81
86.51
4.97
4.761
5.14
4.80
86.36
4.96
4.75
5.13
4.79
86.19
4.95
4.74
5.12
4.78
86.03
4.94
4.73
5.11
4.76
84.87
4.93
4.72
5.30
4.75
84.71
4.92
4.71
5.09
4.74
84.28
4.91
4.70
5.08
4.74
83.58
4.88
4.68
5.06
4.71
82.88
4.86
4.65
5.03
4.69
82.18
4.84
4.63
5.01
4.67
81.48
4.82
4.611
4.99
4.65
$0.79
4.80
4.59
4.98
4.64
80.09
4.79
4.57
4.96
4.63
79.39
4.77
4.56
4.95
4.62
78.69
4.76
4.55
4.94
4.61
77.99
4.75
4.54
4.93
4.60
77.18
4.73
4.51
4.91
4.58
76.26
4.70
4.48
4.89
4.57
75.34
4.69
4.46
4.87
4.55
74.41
4.67
4.45
4.86
4.55
73.49
4.66
4.431
4.85
4.54
72.67
4.65
4.42
4.84
4.54
71.65
4.64
4.41
4.84
4.54
70.73
4.64
4.41
4.83
4.54
69.80
4.64
4.41
4.83
4.55
68.88
4.64
4.41
4.84
4.56
67.36
4.71
4.47
4.90
4.64
65.25
4.77
4.54
4.95
-4.72
63.14
4.83
4.60
5.03
4.80
61.03
4.89
4.65
5.08
4.88
58.92
4.94
4.711
5.14
4.95
66.80
5.00
4.76
5.19
5.03
54.69
5.05
4.81
S.
5.09
62.68
5.30
4.86
5.29
5.16
60.47
5.14
4.91
5.34
5.22
48.36
5.19
4,95
5.38
5.27
46.92
5.19
4.95
5.38
5.28
46.16
5.19
4.95
5.38
5.29
46.40
5.19
4.95
5.38
5.29
44.64
5.19
4.95
5.38
5.30
Dewberry SENSITIVITY USE: SOD Rate
(1)
(2)
(3)
Difference
from
Baseline
Difference from
Baseline
Difference
from
Baseline
-3.8%
3.2%
-4.6%
-4.0%
3.3%
-4.5%
-4.1%
3.4%
-4.5%
-4.2%
3.5%
-4A%
-4.3%
3.6%
-4.3%
-4.5%
3.7%
-4.3%
-4.6%
3.8%
-4.2%
-4.7%
3.9%
AN
-4.4%
3.7%
73.8%
-4.4%
3.7%
-3.7%
-4.4%
3.7%
-3.7%
-4.4%
3.7%
-3.6%
-4.4%
3.7%
-3.5%
-4.4%
3.7%
-3.5%
-4.4%
3.7%
-3.4%
-3.9%
3.3%
-3.1%
-3.9%
3.3%
-3.1%
-3.9%
3.3%
-3.1%
-4.0%
3.3%
-3.2%
-4.0%
3.3%
-3.2%
-4.0%
3.4%
-3.3%
-4.1%
3.4%
-3.3%
-4.1%
3.4%
-3.4%
-4.1%
3.4%
-3.4%
-4.1%
3.5%
-3.5%
-4.2%
3.5%
-3.5%
-4.2%
3.5%
-3.6%
-4.2%
3.5%
-3.6%
-4.2%
3.5%
-3.5%
-4.2%
3.5%
-3.5%-
-4.3%
3.6%
-3.5%
-4.3%
3.6%
-3.4%
-4.4%
3.6%
-3.4%
-4.4%1
3.7%
-3.3%
-4.4%
3.7%
-3.3%
-4.5%
3.7%
-3.2%
-4.5%
3.8%
-3.1%
-4.5%
3.8%
-3.1%
-4.6%
3.8%
-3.0%
-4.7%
3.9%
-2.9%
-4.7%
4.0%
-2.8%
-4.8%
4.0%
-2.7%
-4.8%
4.1%
-2.6%
-4.9%1
4.1%
-2.4%
-4.9%
4.1%
-2.356
-5.0%
4.2%
-2.1%
-5.0%
4.2%
-1.9%
-5.0%
4.2%
-1.8%
-5.0%
4.1%
-1.4%
-4.9%
4.1%
-2.0%
-4.9%
4.1%
-0.6%
-4.8%
4.0%
-0.2%
-4.8%
4.0%
0.2%
-4.7%
3.9%
0.6%
-4.7%
3.9%
0.9%
-4.6%
3.9%
1.2%
-4.6%
3.8%
1.5%
4.5%
3.8%
1.7%
4.5%
3.8%
1.8%
4.5%
3.8%
2.0%
75%
3.8%
2.1%
-4.5%
3.8%
2.2%
h
r
Amok
7/20/2020
/►

QUAL2N Distance-
UpstreamofGoldzboro
(Model Endpoint)
Low
Flow, LCWRF
2.5 MGD Model
Baseline
(1)
(2)
(3)
SOD=1.15/d
@ 20C (Base)
SOD=Base
+20%
SOD=Base-
20%
QUAIZK-
calculated
SOD
x(km)
DO(mgO2)L)
DO(mg02'L)
DO(mgO21L)
DO(mgOn)
43.88
5.19
4.95
5.38
5.31
43.13
5.19
4.95
5.38
5.31
42.37
5.19
4.96
5.38
5.32
41.61
5.19
4.96
5.39
S.33
40.86
5.19
4.961
5.39
5.33
40.09
5.20
4.96
5.39
5.34
39.60
5.12
4.89
5.30
5.25
39.38
5.12
4.89
5.30
5.26
39.17
5.12
4.89
5.30
5.26
38.96
5.12
4.89
5.30
5.26
38.73
5.12
4.89
5.30
5.26
38.62
5.12
4.89
5.31
5.26
38.30
5.12
4.89
5.31
5.26
38.08
5.12
4.89
5.31
5.26
37.87
5.12
4.89
5.31
5.26
37.65
5.12
4.89
5.31
5.27
37.42
5.15
4.92
5.34
5.29
37.18
5.18
4.96
5.37
5.32
36.94
5.22
4.99
5.41
5.35
36.70
5.25
5.02
5.44
5.37
36.46
5.28
5.05
5.47
5.40
36.22
5.30
5.08
5.49
5.42
35.98
5.33
5.10
5.52
5.44
35.74
5.36
5.13
5.55
5.47
36.60
5.38
5.151
5.57
5.49
36.26
5.41
5.28
5.60
5.51
34.86
5.37
5.14
5.56
5.46
34.30
5.39
5.16
5.58
5.48
33.73
5.40
5.17
5.60
5.50
33.17
5.42
5.19
5.62
5.51
32.61
5.44
5.20
5.64
5.53
32.04
5.46
5.22
5.65
5.54
31.48
5.47
5.23
5.67
5.56
30.92
5.48
5.24
5.69
5.57
30.36
5.50
5.261
5.70
5.58
29.79
5.51
5.27
5.72
5.59
28.48
5.46
5.21
5.68
5.55
26.42
5A4
5.17
5.66
5.53
24.36
5.42
5.15
5.65
5.51
22.30
5.41
5.13
5.64
5.50
20.24
5.40
5.12
5.64
5.50
18.18
5.41
5.12
5.65
5.50
16.12
5.41
5.12
5.65
5.50
14.06
5.42
5.12
5.66
5.51
12.00
5.42
5.13
5.67
5.52
9.94
5.44
5.14
5.68
5.53
8.46
5.45
5.17
5.68
5.53
7.57
5.51
5.23
5.73
5.58
6.68
5.56
5.29
5.78
5.63
6.79
5.61
5.34
5.83
5.68
4.90
5.65
5.39
5.87
5.71
4.01
5.69
5.43
5.90
5.75
3.12
5.72
5.47
5.94
5.78
2.23
5.76
5.50
5.971
5.81
1.34
5.79
5.53
5.991
5.84
0.46
5.721
5.49
5.911
5.76
0.001
5.721
SA91
5.911
5.76
(1)
(2)
(3)
Difference
from
Baseline
Differencefrom
Baseline
Difference
from
Baseline
-4.5%
3.8%
2.3%
-4.5%
3.8%
2.47A
-0.5%
3.8%
2.5%
-4.5%
3.7%
2.6%
-0.5%
3.7%1
2.7%
-4.5%
3.7%
2.8%
-0.4%
3.6%
2.7%
-4.4%
3.7%
2.7%
-4.4%
3.7%
2.8%
4.4%
3.7%
2.8%
-4.4%
3.7%
2.8%
-4.4%
3.7%
2.8%
4A%
3.7%
2.8%
4.4%
3.7%
2.8%
4.5%
3.7%
2.9%
4.5%
3.7%
2.9%
-4.4%
3.7%
2.75i
-4.4%
3.7%
2.6%
-4.4%
3.6%
2.5%
-0.3%
3.6%
2.4%
-4.3%
3.6%
2.3%
4.3%
3.6%
2.25i
4.3%
3.6%
2.1%
4.3%
3.6%
2.0%
-4.3%1
3.5%
2.0%
4.2%
3.5%
1.9%
-4.2%
35%
1.8%
4.3%
3.6%
1.85;
4.3%
3.6%
1.7%
4.3%
3.6%
1.7%
-4.3%
3.6%
1.6%
-4.4%
3.6%1
1.6%
4.4%
3.6%
1.6%
-4.4%
3.7%
1.5%
4.4%
3.7%
1.5%
-4.4%
3.7%
1.5%
4.6%
3.9%
1.6%
-4.8%
4.0%
1.6%
-5.0%
4.2%
1.7%
-5.2%
4.3%
17;
-5.3%
4.4%
1.8%
-5.3%
4.5%j
1.8%
-5.4%
4.5%
1.8%
-5.4%
4.5%
1.85;
-5.5%
4.6%
1.7%
-5.5%
4.6%
1.5i
-5.1%
4.3%
1.5%
-5.0%
4.1%
1.4%
-4.8%
4.0%
1.3%
4.7%
3.9%
1.2%
-4.6%
3.9%
1.1%
-4.5%
18%j
1.1%
-4.5%
3.7%
1.0%
-4.4%
3.7%1
1.0%
4.3%
3.6%
0.9%
-4.0%
3.4%
0.7%
o%
3.4%1
0.7%
MIN DIFF -5.5% 0.0% -20.8%
MAX DIFF 0.0% 4.6% 2.9%
[? DewberrySENSITIVITY CASE: SOD Rate 7/20/2020

NEUSE RIVER QUAL2K MODEL, SENSITIVITY ANALYSIS
PROJECT: NEUSE RIVER QUAL2K MODEL FOR TOWN OF CLAYTON NPDES
CLIENT: TOWN OF CLAYTON
LOCATION: 1000 Dwham Street Extension; Clayton, NC 27528
PROJECT NUMBER: 50118315
DATE: 07/152020
rhis is a summary of Neuse Rive QUAL2K model sensitivity, as follows:
Base Model Case: Low Flow Model, Daily Maximum NPDES discharge, LCWRF @ 2.5 MOD
Sensitivity Input parameter: Nitrification Rate
Output parametrai Neese River DO profile (mg/L)
DISCUSSION/RESULTS: The QUAL2K model from Falls Deal to Goldsboro models consumption of oxygen in the waterway partially due to nitrification arsenal
NH3-N) to nitrate (1,103-N). The nitrification rate is an input parameter to the QUAL2K model. This sensitivity analysis looked at the impact ofNH3-N nitrification rate
an DO predication. The base model estimates NH3-N as 0.35/d from calibration to AMS data in the September 2013 model; this nitrification rate predicted NH3-N on that
Jay with reasonable actuary. The 1992 QUAL2E report used a nitrification rate of0.5 mg/L, and the QUAL2K default is 0.08/d. EPA published values (1983) 0.003 to
ISM in waterways. The sensitivity analysis looked at the impact of varying the nitrification rate 30.15/d from the base calibrated %aloe. The results show that the
litri Amimp rate is impactfel to how long it takes the river to recover from point source discharge of ammonia; this is particularly visible in new the Neese River W WTP,
where a higher nitrification rate causes more DO suppression new the discharge (newly 10%lower DO), but higher DO is observed father downstream of the discharge.
SENSITIVITY OF QUAL2K-PREDICTED NEUSE RIVER DO TO NITRIFICATION RATE
'Note 1: only mr,ormbutadez(4.25 MG01and major NPDES spurns.. Identified onthesban. More minorwusms are mainland In the DUAUKmWels.
'Note 2: News point spurn dischargers are modeled at summer maximum daily discharge Ilmas, unless.menerse noted.
s
• is • as
to oD
= Nitrification Rate = 0.35/d (ease)
9.00
• Mtrifaanon Rate = D20/d
de Niniflcation Rate =0.50/d
} e00
- sAM5Data Min: 2009-2018
s AVIS Data Avg: 20094018 7.00
••1••sas pdp
•aC�V VaY �� $.OD 0
as • s• 9
O
Crabtree Creek • TP 4,00 'o
Little Creek WW(NPDES)
Neese River WW4P iNPDESI Jahn"- CountyWP Lee Steam Electric Plant (NPDES)
Smith Creek WN4P Smithfield 11 3.00
Poplar Creek
Sahel, Beek Hams Creek Poplar
loM1nztOn County Regkpnal
Pearls, Branch I _ WWiF(NPDE5) Goldsboro Wes (NPDES) 2.00
Mwae'm Creek
Mark, Creek Swift Creek
Walnut Creek polecat BrancM1 Falling Creek 1.00
Black Creek. MITI Creek Little River'
aP Y •Y o o ve - V '"a- 4- '"1 - C 4 0.00
15000 17000 16000 15000 140.00 130.00 120,00 110.00 100.00 SOLO 90.00 70,00 60.00 5000 40.00 30.00 20.00 10.00 0.00
Neese River Location- Distance from Model Endpoint in Goldsboro (km)
QDA12K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Nitrification
Rate=
0.35/d (Base(
Nitrification
Rate=
0.20/d
Nitrification
Rate=
0.50/d
x(km)
DO(m902/L)
DO(mgO2/L)
DO(mg02/L)
166.83
5.94
5.94
5.94
166.64
5.97
5.99
5.96
166.96
5.98
6.01
5.96
166.41
5.99
6.02
5.96
164.851
6.001
6.04
5.96
164.281
6.01
1 6.05
5.97
(1) (2)
Difference Difference
from from
Baseline Baseline
0.0% 0.0%
0.2% -0.2%
0.4% -0.4%
0.5% -0.5%
0.6% -0.6%
0.7% -0.6%
9 Dewberry SENSITIVITY CASE: Nitrification Rate 7/20/2020

QUARK Di8ance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Nitrification
Rate=
0.35/d (Base)
Nitrification
Rate=
D.20/d
Nitrification
Rate=
0.50/d
x(8m)
DO(mgO2(L)
DO(mgOVL)
DO(mgOYL)
163.72
6.01
6.O6
5.97
163.16
6.02
6.06
5.98
162.69
6.02
6.07
5.98
162.02
6.03
6.081
5.99
161.46
6.03
6.08
5.99
161.10
6.05
6.10
6.01
160.94
6.06
6.11
6.02
160.79
6.07
6.12
6.03
160.63
6A8
6.13
6.04
160.47
6.09
6.14
6.05
160.32
6.11
6.15
6.07
160.16
6.12
6.16
6.08
160.00
6.12
6.17
6.09
159.86
6.13
6.18
6.09
169.69
6.14
6.19
6.10
169.34
6.06
6.11
6.02
168.80
5.62
5.88
5.77
168.26
5.76
5.84
5.69
157.71
5.70
5.80
5.62
157.17
5.66
5.77
5.57
166.63
5.62
5.74
5.53
166.09
5.59
5.71
5.50
166.54
5.57
5.701
5.47
165.00
5.55
5.68
5.45
164.46
5.54
5.67
5.44
153.94
5.54
5.67
5.44
163.46
5.54
5.67
5.43
162.97
5.54
5.67
5.44
152.48
5.54
5.67
5.44
161.99
5.54
5.67
5.44
161.60
5.54
5.68
5.45
161.01
5.55
5.68
5.45
150.52
5.56
5.68
5.46
150.03
5.56
5.69
5.47
149.64
5.56
5.69
5.48
149.09
5.65
5.76
5.57
148.66
5.72
5.83
5.64
148.24
5.78
5.88
5.71
147.82
5.83
5.93
5.77
147.39
5.87
5.97
5.82
146.97
5.91
6.00
5.86
146.66
5.95
6.031
5.90
146.12
5.98
6.05
5.93
145.70
6.00
6.08
5.96
146.28
6.02
6.09
5.99
144.96
6.07
6.13
6.03
144.73
6.11
6.17
6.07
144.51
6.14
6.20
6.11
144.29
6.17
6.23
6.14
144.07
6.20
6.26
6.17
143.85
6.23
6.28
6.20
143.63
6.25
6.301
6.23
143.41
6.27
6.32
6.25
143.19
6.29
6.34
6.27
142.97
6.31
6.35
6.29
142.66
6.33
6.37
6.31
142.26
6.34
6.39
6.33
141.86
6.36
6.40
6.34
141.46
6.37
6.41
6.36
141.06
6.38
6.42
6.37
140.66
6.39
6.43
6.38
9 Dewberry SENSITIVITY CASE: Nitrification Rate 7/20/2020

gDAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Nitrification
Rate=
0.351d (Base)
Nitrification
Rate=
0.20/d
Nitrification
Hate=
0.50/d
x(km)
DO(mgOWL)
DO(mgO21L)
DO(mg0i )
140.26
6.40
6.44
6.39
139.86
6A1
6.45
6.40
139.46
6A2
6.46
6.41
139.06
6.42
6.461
6.41
138.77
6.42
6.46
6.41
138.69
6.42
6.46
6.41
138.42
6.42
6.46
6.41
138.24
6.42
6.46
6.41
138.06
6.42
6.46
6.41
137.88
6.42
6.45
6.41
137.70
6.42
6.45
6.41
137.52
6.42
6.45
6.41
137.34
6.42
6.45
6.41
137.16
6.42
6.45
6.41
136.85
6.41
6.44
6.40
136A0
6.40
6.44
6.39
136.95
6.39
6.43
6.39
135.60
6.39
6.43
6.38
136.05
6.39
6.42
6.38
134.60
6.38
6.42
6.37
134.15
6.38
6.411
6.37
133.69
6.38
6.41
6.37
133.24
6.37
6.41
6.37
132.79
6.37
6.41
6.36
132.34
6.31
6.35
6.30
131.89
6.26
6.29
6.25
131.44
6.21
6.24
6.20
130.99
6.16
6.20
6.16
130.64
6.13
6.16
6.12
130.08
6.09
6.13
6.09
129.63
6.06
6.101
6.06
129.18
6.03
6.07
6.02
128.73
6.00
6.04
5.99
128.28
5.28
5.34
5.24
127.95
5.25
5.32
5.19
127.75
5.21
5.30
5.14
127.55
5.18
5.28
5.09
127.34
5.14
5.26
5.04
127.14
5.11
5.25
4.99
126.94
5.08
5.23
4.94
126.74
5.05
5.211
4.90
126.63
5.01
5.19
4.85
126.33
4.98
5.18
4.81
126.13
4.95
5.16
4.77
125.78
4.93
5.17
4.73
125.30
4.92
5.17
4.69
124.81
4.90
5.17
4.65
124.33
4.88
5.18
4.62
123.84
4.87
5.18
4.59
123.36
4.86
5.18
4.57
122.87
4.85
5.191
4.54
122.39
4.84
5.19
4.52
121.90
4.83
5.19
4.51
121.42
4.82
5.20
4A9
121.08
4.82
5.20
4.49
120.88
4.82
5.20
4.48
120.681
4.81
5.20
4.48
120.48
4.81
5.20
4.47
120.28
4.80
5.20
4.45
120.091
4.80
5.20
4.46
119.891
4.801
5.201
4.45
Dewberry SENSITIVITY CASE: Nitrification Rate
/ems
/ems
7/20/2020
I!

gl1AL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Nitrification
Rate=
0.35/d (Base)
Nitrification
Rate=
0.20/d
Nitrification
Rate=
0.50/d
x(kM)
DO(mgO21L)
DO(mgO2AJ
DO(mgO2/L)
119.69
4.79
5.20
4.45
119.49
4.79
5.20
4.44
119.29
4.79
5.20
4.44
118.95
4.78
5.201
4.43
MAT
4.78
5.20
4.43
117.99
4.78
5.20
4A2
117.61
4.77
5.20
4.42
117.03
4.77
5.20
4.42
116.66
4.77
5.20
4.43
116.06
4.77
5.21
4.43
115.58
4.78
5.21
4.44
115.10
4.78
5.21
4.45
114.62
4.80
5.22
4.48
114.19
4.87
5.281
4.55
113.82
4.92
5.32
4.62
113.44
4.98
5,37
4.68
113.07
5.03
5.41
4.74
112.69
5.07
5,45
4.79
112.32
5.12
5.48
4.85
111.94
5.16
5.52
4.90
111.67
5.20
5.55
4.94
111.19
5.24
5.58
4.99
110.82
5.27
5.61
5.03
110.38
5.28
5.611
5.04
109.86
5.28
5.61
5.04
109.35
5.28
5.61
5.05
108.84
5.29
5.61
5.06
108.33
5.29
5.61
5.07
107.82
5.30
5.62
5.09
107.31
5.31
5.62
5.10
106.80
5.31
5.62
5.11
106.28
5.32
5,62
5.12
105.77
5.33
5.63
5.14
106.38
5.32
5.611
5.13
106.11
5.31
5.60
5.12
104.84
5.30
5.59
5.11
104.57
5.29
5.58
5.11
104.30
5.28
5.57
5.10
104.03
5.27
5.56
5.10
103.76
5.26
5.55
5.09
103.48
5.26
5.54
5.09
103.21
5.25
5.54
5.09
102.94
5.25
5.53
5.08
102.53
5.22
5.501
5.06
101.97
5.19
5.47
5.04
101.42
5.17
SAS
5.02
100.86
5.15
5.42
5.01
100.31
5.13
5.40
5.00
99.76
5.12
5.38
4.99
99.19
5.11
5.37
4.99
98.64
5.10
5.35
4.98
98.08
5.09
5.34
4.98
97.63
5.09
5.33
4.99
96.97
5.13
5.361
5.03
96.42
5.16
5.39
5.08
96.87
5.20
5.41
5.12
96.31
5.23
5.44
5.16
94.76
5.27
5.46
5.20
94.21
5.30
5.49
5.23
93.66
5.32
5.51
5.27
93.10
5.35
5.53
5.3)
P Dewberry, SENSITIVITY CASE: Nitrification Rate 7/20/2020

QUAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGO
Model
Baseline
(1)
12)
Nitrification
Rate=
0.35/d (Base)
Nitrification
Rate=
0.20/d
Nitrification
Rate=
0.50/d
x(km)
DO(mgO2/L)
DO(mgO2/L)
DO(mgO2/LJ
92.65
5.38
5.55
5.33
92.00
5.41
5.57
5.37
91.65
5.35
5.51
5.31
91.22
5.29
5.451
5.25
90.88
5.22
5.39
5.19
90.55
5.17
5.33
5.14
90.21
5.11
5.27
5.09
89.88
5.05
5.22
5.03
89.64
5.00
5.17
4.99
89.21
4.95
5.12
4.94
88.87
4.90
5.07
4.90
88.64
4.86
5.02
4.85
88.26
4.92
5.07
4.91
88.06
4.92
5.07
4.92
87.84
4.92
5.07
4.92
87.62
4.93
5.08
4.93
87.41
4.93
5.08
4.93
87.19
4.93
5.08
4.94
86.98
4.94
5.08
4.94
86.77
5.04
5.17
5.04
86.65
5.03
5.16
5.03
86.34
5.02
5.16
5.02
86.15
5.01
5.15
5.01
85.99
5.00
5.14
5.00
85.83
4.99
5.13
4.99
85.67
4.98
5.12
4.97
86.51
4.97
5.11
4.96
85.36
4.96
5.10
4.95
85.19
4.95
5.09
4.94
86.03
4.94
5.08
4.93
84.87
4.93
5.08
4.92
84.71
4.92
5.07
4.91
84.28
4.91
5.061
4.90
83.68
4.88
5.04
4.87
82.88
4.86
5.01
4.84
82.18
4.84
4.99
4.82
81.48
4.82
4.98
4.80
80.79
4.80
4.96
4.78
80.09
4.79
4.94
4.77
79.39
4.77
4.93
4.76
78.69
4.76
4.92
4.75
77.99
4.75
4.91
4.74
77.18
4.73
4.881
4.72
76.26
4.70
4.85
4.70
76.34
4.69
4.83
4.68
74.41
4.67
4.81
4.67
73.49
4.66
4.79
4.67
72.67
4.65
4.78
4.66
71.66
4.64
4.77
4.66
70.73
4.64
4.76
4.66
69.80
4.64
4.75
4.67
68.88
4.64
4.74
4.67
67.36
4.71
4.791
4.75
65.26
4.77
4.94
4.83
63.14
4.83
4.88
4.89
61.03
4.89
4.92
4.96
68.92
4.94
4.96
5.02
56.80
5.00
5.00
5.08
64.69
5.05
5.03
5.24
62.58
5.10
5.07
5.20
60.47
5.14
5.10
5.25
DOWb@TTy SENSITIVITY CASE: Nitrification Rate
7/20/2020
I^

QUARK Distance-
Upsveam of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 IVIED
Model
Baseline
(1)
(2)
Nitrification
Rate=
0.35/d(Base)
Nitrification
Rate=
0.20/d
Nitrification
Rate=
0.50/d
x(km)
DO(mg=L)
DO(mgO2)L)
DO(mgO21L)
48.36
5.19
5.13
5.30
46.92
5.19
5.13
5.30
46.16
5.29
5.13
5.30
45.40
5.19
5.12
5.30
44.64
5.19
5.12
5.30
43.88
5.19
5.12
5.31
43.13
5.19
5.11
5.31
42.37
5.19
5.11
5.31
41.61
5.19
5.11
5.32
40.85
5.19
5.11
5.32
40.09
5.20
5.11
5.33
39.60
5.12
5.03
5.24
39.38
5.12
5.03
5.24
39.17
5.12
5.03
5.24
38.95
5.12
5.03
5.24
38.73
5.12
5.03
5.24
38.52
5.12
5.03
5.24
38.30
5.12
5.03
5.24
38.08
5.12
5.03
5.24
37.87
5.12
5.03
5.25
37.65
5.12
5.03
5.25
37.42
5.15
5.061
5.28
37.18
5.18
5.09
5.31
36.94
5.22
5.13
5.34
36.70
5.25
5.16
5.36
36.46
5.28
5.19
5.39
36.22
5.30
5.22
5.42
35.98
5.33
5.25
5.44
35.74
5.36
5.27
5.47
35.50
538
5.30
5.49
36.26
5.41
5.32
5.51
34.86
5.37
5.28
5.47
34.30
5.39
5.30
5.49
33.73
5.40
5.32
5.50
33.17
5.42
5.34
5.52
32.61
5.44
5.35
5.53
32.04
5.46
5.37
5.55
31.48
SA7
5.38
5.56
30.92
5.48
5.40
5.58
30.36
5.50
5.41
5.59
29.79
5.51
5.421
5.60
28.48
5.46
5.37
5.55
26.42
5.44
5.33
5.53
24.36
5.42
5.31
5.51
22.30
5.41
5.29
5.50
20.24
5.40
5.29
5.49
18.18
5.41
5.28
5.49
16.12
5.41
5.29
5.49
14.06
5.42
5.29
5.50
12.00
5.42
5.30
5.50
9.94
5.44
S.311
5.51
8.46
5.45
5.33
5.51
7.67
5.51
5.39
5.57
6.68
5.56
5.45
5.62
6.79
5.61
5.50
5.66
4.90
5.65
5.55
5.70
4.01
5.69
5.59
5.74
3.12
532
5.63
5.77
2.23
5.76
5.66
5.80
1.34
539
5.69
5.83
0.45
5.721
5.651
5.75
:F' Dewberry -
SENSITIVITY CASE: Nitrification Rate 7/20/2020

LQUAtance-Nitrification
oldboro
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
Rate=
0.35/d (Base)
Nitrification
Rate=
0.20/d
Nitrification
Ratepoint)
0.50/d
x(kmJ
DO(mgO22)
DO(mgO21L)
DO(mgOYL)
0.00
5.71
5.65
5.75
(1) (2)
tWkrenw
Omerence
from
from
Baseline
Baseline
%
%
-1.2%
0.5%
MINDIFF -2.3%
-7.3%
MAX DIFF 9.0%
2.5%
y Dewberry SENSITIVITY CASE: Nitrification Rate 7/20/2020

e••a
alai
All
^i
x•aw
0--A
aellllit
/a•E
Ali
Al\
"alla.
NEUSE RIVER QUAL2K MODEL, SENSITIVITY ANALYSIS
PROJECT: NEUSE RIVER QUAL2K MODEL FOR TOWN OF CLAYTON NPDES
CLIENT: TOWN OF CLAYTON
LOCATION: 1000 Durham Street Extension; Clayton, NC 27528
PROJECT NUMBER: 50118315
DATE: 07/15/2020
Base Model Case: Low Flow Model, Daily Maximum NPDES discharge, LC W RF @ 2.5 MOD
Sensitivity Input parameter: BOD Oxidation Rate
Output parameter(s): Neese River DO profile (mg/l.)
DISCUSSION/RESULTS: The QUAL2K model from Falls Data to Goldsboro models consumption ofoxygen in the waterway partially due to oxidation of BOD. The
BOD oxidation rate is an input parameter to the QUAL2K model. This sensitivity analysis looked at the impact of BOD oxidation rate on the prediction of DO in the River.
The base model estimates BOD oxidation rate as 0.1/d, the same rate used in the 1992 QUAL2E mpon, very close to the QUAL2K default of 0.09/d. EPA published values
�1983) 0.1 to LO/d for oxidation of BOO in waterways. The sensitivity analysis looked at the impact of varying die BOD oxidation rate from the base calibrated value down
to the QUAL2K model default and up to 0.2/d. The results show that the BOD oxidation rate is impactfll to how long it takes the river to recover from point source
discharge cr BOD. At the most impactfhl location, the DO is 6%lower than the baseline model assumption when the BOD oxidation rate is increased.
SENSITIVITY OF QUAL2K-PREDICTED NEUSE RIVER DO TO BOD OXIDATION RATE
'Name 1: Only majortruidades D0.25 Mmoand major HPms mares arz artices on the chart. Maremino tortes ne induded In the QUM2R models.
'Nine 2: NPDES point same, discounters are madNed at summer maximum daily dlsroante limos, unlersatheraw wed.
10.00
• ROD Oatoil Rate = 0.1/d (Basel
• BOD Oxidation Rate =009/d - 9.00
•
• to• BOO Oxidation Rate = Cl
• •
• •AM5 Data Min: 20011,2018
•AMS Data Aea2009Q018 - 7.00
no
is6.00 D
p
0
^ /� ••s•••••.
000
nrr tor
mt,.��!• 5.00 O
• o
Crabvee Creel • 4.00 O
title Creel: %i tNPDE51
NeesePlant
_ - -
Rrver WWTP tNPGFS mW lonnxn County iP lee Steam Electrit Plan[NPDEr7'
Sinai- Creek W WTP Smithfield WTP 3.00
Poplar Geer
Smith Creel Na-, Creel Central iodmton County Regional
Poplar Branch WWTF (NPDES) Goldsboro WRF INPDES) 2.00
Mm,a,on Creek
Mark, Cree4 SwiftCreek
Walnut Creel Polecat Branch
Falh, Cr1.00
eek
Black Creel,. Mill Creek Litile River
190.00 170.00 160.00 150.00 larder 13000 120.00 13000 10000 9000 8000 70.W 61 5000 4000 3000 2000 10,00 000
Neue River Location- Distance from Model Endpoint in Goldsboro (km)
QUAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
SOD
Oxidation
Rate =0.1/d
(Base)
SOD
Oxidation
Rate=
0.09/d
BOD
Oxidation
Rate = 0.2/d
x(km)
DO(mgOli
DO(mgOi
DO(mgOli
166.83
594
SA4
5.94
166.64
5.97
5.98
5.95
165.98
5.98
5.99
5.94
166.41
5.99
1.10
5.93
164.85
6.00
6.01
5.93
164.28
6.01
6.01
5.93
(1) (2)
Difference Difference
from from
Baseline Baseline
% %
0.0% 0.0%
0.0% -0.4%
0.1% -0.7%
0.1% -1.0%
0.1% -1.1%
0.1% .1.3%
9 Dewberry
SENSITIVITY CASE: SOD Oxidation Rate
7/20/2020

QUAt2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
12)
SOD
Oxidation
Rate =0.1/d
(Base)
SOD
Oxidation
Rate=
0.09/d
SOD
Oxidation
Rate =0.2/d
x(km)
D0(mgO21L)
D0(mgO21L)
D0(mgO21L)
163.72
6.01
6.02
5.93
163.16
6.02
6.03
5.93
162.69
6.02
6.03
5.93
162.02
6.03
6.04
5.94
161.46
6.03
6.04
5.94
161.10
6.05
6.06
5.96
160.94
6.06
6.07
5.97
160.79
6.07
6.08
5.98
160.63
6.08
6.09
5.99
160.47
6.09
6.10
6.00
160.32
6.11
6.12
6.01
160.16
6.12
6.13
6.02
160.00
6.12
6.131
6.03
169.85
6.13
6.14
6.04
159.69
6.14
6.15
6.05
169.34
6.06
6.07
5.96
158.80
5.82
5.83
5.72
158.26
5.76
5.77
5.66
167.71
5.70
5.72
5.56
157.17
5.66
5.67
5.53
166.63
5.62
5.64
5.49
166.09
5.59
5.61
5.46
155.54
5.57
5.591
5.43
155.00
5.55
5.57
5.41
154.46
5.54
5.56
5.39
163.94
5.54
5.55
5.39
163.46
5.54
5.55
5.39
162.97
5.54
5.55
5.39
152.48
5.54
5.56
5.39
161.99
5.54
5.56
5.39
161.50
5.54
5.56
5.39
151.01
5.55
5.56
5.39
150.62
5.56
5.571
5.40
150.03
5.56
5.58
5.41
149.54
5.56
5.58
5.41
149.09
5.65
5.66
5.50
148.66
5.72
5.73
5.58
148.24
5.78
5.79
5.65
147.82
5.83
5.94
5.71
147.39
5.87
5.89
5.76
146.97
5.91
5.93
5.81
146.65
5.95
5.96
5.84
146.12
5.98
5.991
5.88
145.70
6.00
6.01
5.91
146.28
6.02
6.04
5.93
144.95
6.07
6.08
5.98
144.73
6.11
6.12
6.02
144.51
6.14
6.15
6.06
144.29
6.17
6.18
6.09
144.07
6.20
6.21
6.12
143.86
6.23
6.24
6.15
143.53
6.25
6.26
6.18
143.41
6.27
6.281
6.20
143.19
6.29
6.30
6.22
142.97
6.31
6.32
6.24
142.66
6.33
6.34
6.26
142.26
6.34
6.35
6.28
141.86
6.36
6.37
6.29
141.46
6.37
6.38
6.31
141.06
6.38
6.39
6.32
140.66
6.39
6.40
6.33
DE!WI)0TC}T SENSITIVITY CASE: SOD Oxidation Rate
7/20/2020

QUAL21K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
BOD
Oxidation
Rate =0.1/d
(Base)
DOD
Oxidation
Rate=
0.09/d
BOD
Oxidation
Rate =0.2/d
x(km)
DO(mg021)
DO(mg021L)
DO(mg02A)
140.26
6.40
6.41
6.34
139.86
6.41
6.42
6.35
139.45
6.42
6.43
6.36
139.06
6.42
6.43
6.37
138.77
6.42
6.43
6.37
138.69
6.42
6.43
6.37
138.42
6.42
6.43
6.36
138.24
6.42
6.43
6.36
138.06
6.42
6.43
6.36
137.88
6.42
6.43
6.36
137.70
6.42
6.43
6.36
137.52
6.42
6.43
6.36
137.34
6.42
6.431
6.36
137.16
6.42
6.43
6.36
136.86
6.41
6.42
6.35
136.40
6.40
6.41
6.34
135.95
6.39
6.40
6.33
136.60
6.39
6.40
6.33
136.05
6.39
6.39
6.32
134.60
6.38
6.39
6.32
134.15
6.38
6.39
6.32
133.69
6.38
6.39
6.31
133.24
6.37
6.381
6.31
132.79
6.37
6.38
6.31
132.34
6.31
6.32
6.24
131.89
6.26
6.27
6.19
131.44
6.21
6.22
6.14
130.99
6.16
6.17
6.09
130.64
6.13
6.14
6.05
130.08
6.09
6.10
6.02
129.63
6.06
6.07
5.99
129.18
6.03
6.04
5.96
128.73
6.00
6.011
5.92
128.28
5.28
5.29
5.24
127.95
5.25
5.25
5.19
127.76
5.21
S.22
5.15
127.65
5.18
5.19
5.10
127.34
5.14
5.15
5.06
127.14
5.11
5.12
5.02
126.94
5.08
5.09
4.98
126.74
5.05
5.06
4.94
126.63
5.01
5.03
4.90
126.33
4.98
5.001
4.86
126.13
4.95
4.97
4.83
125.78
4.93
4.95
4.79
125.30
4.92
4.93
4.76
124.81
4.90
4.92
4.73
124.33
4.88
4.90
4.71
123.84
4.87
4.89
4.68
123.36
4.86
4.88
4.66
122.87
4.85
4.87
4.64
122.39
4.84
4,86
4.63
121.90
4.83
4.851
4.61
121.42
4.82
4.85
4.60
121.08
4.82
4.85
4.59
120.88
4.82
4.84
4.59
120.68
4.81
4.84
4.58
120AB
4.81
4.83
4.57
120.28
4.80
4.83
4.57
120.09
4.80
4.83
4.56
119.89
4.80
4.82
4.56
DewberrySENSITIVITY CASE: BOD Oxidation Rate 7/20/2020

gDAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MOD
Model
Baseline
(1)
(2)
BOD
Oxidation
Rate = 0.1/d
(Base)
BOO
Oxidation
Rate =
0.09/d
ROD
Oxidation
Rate = 0.2/d
z(km)
DO(mgO2/L)
DO(mgO2,L)
DO(mgO21L)
119.69
4.79
4,82
4.55
119.49
4.79
4.82
4.55
119.29
4.79
4.82
4.54
118.95
4.78
4.81
4.53
118.47
4.78
4.81
4.52
117.99
4.78
4.80
4.52
117.61
4.77
4.80
4.51
117.03
4.77
4.80
4.51
116.66
4.77
4.80
4.51
116.06
4.77
4.80
4.51
115.58
4.78
4.81
4.51
115.10
4.78
4.811
4.51
114.62
4.80
4.84
4.54
114.19
4.87
4.90
4.61
113.82
4.92
4.95
4.67
113.44
4.98
5.01
4.73
113.07
5.03
5.06
4.78
112.69
5.07
SAO
4.83
112.32
5.12
5.15
4.88
111.94
5.16
5.19
4.93
111.57
5.20
5.23
4.97
111.19
5.24
5.261
5.01
110.82
5.27
5.30
5.05
110.38
5.28
5.30
5.05
109.86
5.28
5.31
5.06
109.35
5.28
5.31
5.06
108.84
5.29
5.31
5.06
108.33
5.29
5.32
5.07
107.82
5.30
5.33
5.08
107.31
5.31
5.33
5,08
106.80
5.31
5.34
5.09
106.28
5.32
5.351
5.10
105.77
5.33
5.35
5.11
105.38
5.32
5.34
5.10
105.11
5.31
5.33
5.08
104.84
5.30
5.32
5.07
104.57
5.29
5.31
5.06
104.30
5.28
5.30
5.06
104.03
5.27
5.30
5.05
103.76
5.26
5.29
5.04
103.48
5.26
5.28
5.03
103.21
5.25
5.281
5.03
102.94
5.25
5.27
5.03
102.63
5.22
5.25
4.99
101.97
5.19
5.22
4.97
101.42
5.17
5.20
4.94
100.86
5.15
5.18
4.92
100.31
5.13
5.16
4.90
99.75
5.12
5.15
4.89
99.19
5.11
5.14
4.88
98.64
5.10
5.13
4.87
98.08
5.09
5,121
4.86
97.63
5.09
5.12
4.86
96.97
5.13
5.16
4.91
96.42
5.16
5.19
4.95
95.87
5.20
5.23
4.99
96.31
5.23
5.26
5.03
94.76
5.27
5.29
5.07
94.21
5.30
5.32
5.10
93.65
5.32
5.35
5.13
93.10
5.35
5.38
5.16
) Dewberry SENSITIVITY EASE: ROD Oxidation Rate
l�
7/20/2020

ODAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Law Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
BOD
Oxidation
Rate =0.1/d
(Base)
BOO
Oxidation
Rate=
0.09/d
BOD
Oxidation
Rate = 0.2/d
x(km)
DO(mgO21L)
D0(mgO21L)
DO(mgO21y
92.55
5.38
5.40
5.19
92.00
5.41
5.44
5.24
91.55
5.35
5.38
5.17
91.22
5.29
5.31
5.10
90.88
5.22
5.25
5.03
90.55
5.17
5.19
4.96
90.21
5.11
5.24
4.90
89.88
5.05
5.08
4.84
89.54
5.00
5.03
4.78
89.21
4.95
4.98
4.73
88.87
4.90
4.94
4.68
88.54
4.86
4.89
4.63
88.26
4.92
4.95
4.70
88.06
4.92
4.95
4.70
87.84
4.92
4.95
4.70
87.62
4.93
4.96
4.71
87.41
4.93
4.96
4.71
87.19
4.93
4.96
4.72
86.98
4.94
4.97
4.72
86.77
5.04
5.06
4.84
86.55
5.03
5.06
4.83
86.34
5.02
5.051
4.82
86.16
5.01
5.04
4.81
86.99
5.00
5.03
4.80
86.83
4.99
5.02
4.79
85.67
4.98
5.01
4.77
85.51
4.97
5.00
4.76
85.35
4.96
4.99
4.75
85.19
4.95
4.98
4.74
65.03
4.94
4.97
4.73
84.87
4.93
4.96
4.72
84.71
4.92
4.951
4.70
84.28
4.91
4.94
4.69
83.68
4.88
4.91
4.66
82.88
4.86
4.89
4.63
82.18
4.84
4.87
4.61
81.48
4.82
4.85
4.59
80.79
4.80
4.84
4.57
80.09
4.79
4.82
4.55
79.39
4.77
4.81
4.53
78.69
4.76
4.80
4.52
77.99
4.75
4.791
4.51
77.18
4.73
4.76
4.48
7626
4.70
4.74
4.46
76.34
4.69
4.72
4.44
74.41
4.67
4.71
4.43
73.49
4.66
4.70
4.42
72.67
4.65
4.69
4.41
71.65
4.64
4.68
4.40
70.73
4.64
4.68
4.40
69.80
4.64
4.68
4.40
68.88
4.64
4.681
4.41
67.36
4.71
4.74
4.49
65.25
4.77
4.81
4.56
63.14
4.83
4.86
4.64
61.03
4.89
4.92
4.71
68.92
4.94
4.97
4.77
56.80
5.00
5.03
4.84
64.69
5.05
5.08
4.90
52.58
5.10
5.12
4.96
60.47
5.14
5.17
5.02
J DewberrySENSITIVITY CASE: BOO Oxidation Rate 7/20/2020

ODAL2K Distance-
Upstream of Goldsboro
(Model Endpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
SOD
Oxidation
Rate =0.1/d
(Base)
BOO
Oxidation
Rate=
0.09/d
BOD
Oxidation
Rate =0.2/d
x(km)
DO(mgO21L)
DO(mgO21L)
DO(mgO21L)
48.36
5.19
5.21
5.08
46.92
5.19
5.21
5.08
46.16
5.19
5.21
5.08
45.40
5.19
5.211
5.08
44.64
5.19
5.21
5.08
43.88
5.19
5.21
5.08
43.13
5.19
5.21
5.09
42.37
5.19
5.21
5.09
41.61
5.19
5.22
5.10
40.86
5.19
5.22
5.10
40.09
5.20
5.22
5.10
39.60
5.12
5.14
5.03
39.38
5.12
5.14
5.03
39.17
5.12
5.141
5.03
38.96
5.12
5.14
5.03
38.73
S.12
5.14
5.03
38.52
5.12
5.14
5.03
38.30
5.12
5.14
5.03
38.08
5.12
5.14
5.03
37.87
5.12
5.14
5.03
37.65
5.12
5.14
5.04
37.42
5.15
5.17
5.07
37.18
5.18
5.21
5.11
36.94
5.22
5.24
5.14
36.70
5.25
S.27
5.17
36.46
5.28
5.30
5.21
36.22
5.30
5.32
5.24
35.98
5.33
5.35
5.27
36.74
5.36
5.38
5.29
35.60
5.38
5.40
5.32
35.26
5.41
5.421
5.35
34.86
5.37
5.38
5.31
34.30
5.39
5.40
5.33
33.73
5.40
5.42
5.35
33.17
5.42
5.44
5.37
32.61
5.44
5.45
5.39
32.04
5.46
5.47
5.41
31.48
5.47
5.49
5.43
30.92
5.48
5.50
5.45
30.35
5.50
5.51
5.46
29.79
5.51
5.531
5.48
28.48
5.46
5.48
5.44
26.42
5.44
5.45
5.42
24.36
5.42
S.43
5.41
22.30
5.41
5.42
5.40
20.24
5.40
5.42
5.41
18.18
5.41
5.42
5.41
16.12
5.41
5.42
5.43
14.06
5.42
5.42
5.44
12.00
5.42
5.43
5.45
9.94
5.44
5.44
5:47
8.46
5.45
5.45
5.48
7.57
5.51
5.51
5.54
6.68
5.56
5.56
5.59
6.79
5.61
5.61
5.64
4.90
5.65
5.65
5.68
4.011
5.69
5.69
5.72
3.12
5.72
5.73
S.76
2.23
5.76
5.76
5.79
1.341
5.79
5.79
5.82
0.451
5.721
5.721
5.75
Dewberry SENSITIVITY CASE: BOD Oxidation Rate
T
T
/x\
T
I"!
7/20/2020
Imo.
en'V

LQU.ADistnceOxidation
fGoldsboro
ndpoint)
Low Flow,
LCWRF 2.5 MGD
Model
Baseline
(1)
(2)
BOO
Rate=0.1/d
(Base)
BOO
Ozidation
Rate=
0.09/d
BOD
Oxidation
Rate = 0.2/d
x(km)
DO(mgO21L)
DO(mgO21L)
DO(mgO21L)
0.00
5.72
5.72
5.75
(1) (2)
Difference Difference
from from
Baseline Baseline
0.1% 0.4%
MIN DIFF 0.0% -5.6%
MAX DIFF 0.8% 0.7%
10 Dewberry
SENSITIVITY USE: BOO Oxidation Rate
7/20/2020