NC0021253_Fact Sheet_20241118

Fact Sheet
NPDES Permit No. NCO021253
Permit Writer/Email Contact: Gary Perlmutter, [e-mail]
Date: November 18, 2024
Division/Branch: NC Division of Water Resources/NPDES Municipal Permitting Unit
Fact Sheet Template: Version 09Jan2017
Permitting Action:
N Renewal
❑ Renewal with Expansion
❑ New Discharge
❑ Modification (Fact Sheet should be tailored to mod request)
Note: A complete application should include the following:
• For New Dischargers, EPA Form 2A or 2D requirements, Engineering Alternatives Analysis, Fee
• For Existing Dischargers (POTW), EPA Form 2A, 3 effluent pollutant scans, 4 2nd species WET
tests.
• For Existing Dischargers (Non-POTW), EPA Form 2C with correct analytical requirements based
on industry category.
Complete applicable sections below. If not applicable, enter NA.
1. Basic Facility Information
Facility Information
Applicant — Facility Name:
Town of Havelock — Havelock WWTP
Applicant Address:
P.O. Box 368, Havelock, NC 28532
Facility Address:
304 North Jackson Drive, Havelock, NC 28532
Permitted Flow:
2.25, 2.8, 3.5 MGD
Facility Type/Waste:
MAJOR Municipal; 100% domestic
Facility Class:
Grade IV
Treatment Units:
Bar Screen, Grit Removal, Activated Sludge System (Fine/Coarse Bubble
Aeration, Final Clarifiers), Denitrification Filters, UV Disinfection, Re -
aeration, Cascade Aeration, Diffuser in Neuse River
Pretreatment Program (Y/N):
No
County:
Craven
Region:
Washington
Briefly describe the proposed permitting action and facility background: The Town of Havelock has
applied for NPDES permit renewal for its Havelock WWTP, and submitted a renewal application dated
12/27/2023, received by the Division (DWR) on 1/9/2024. In the cover letter it was noted that the second
species toxicity tests were not yet completed, and would be submitted with revisions to Part E of EPA Form
2A. These items were submitted on 4/30/2024, received by DWR on 5/20/2024. Review of the applications
found them to be complete.

NCO021253
This facility serves a population of —12,900 residents in the Town of Havelock. The Town treats 100%
domestic wastewater without a pretreatment program for industrial waste. The treated wastewater is
pumped—30,000 linear feet (-5.7 mi.) to the Neuse River. Prior to discharge, the effluent undergoes cascade
aeration near the riverbank, then discharges via a multi -port diffuser located —2040 ft from the shoreline.
Due to bacterial regrowth concerns in the effluent's 5.7-mile pipe journey to the Neuse River Estuary and
that the UV disinfection system lacks a backup chlorination system, a special condition was added to require
demonstration that effluent sampling is representative. This condition requires four samplings (2 in winter
and 2 in summer) at a sampling location close to the outfall in the Neuse River and compared to concurrent
samplings at the current effluent sampling location. Instream data show significant differences in
Enterococci geometric means among the instream sample locations, at 10 ft from the outfall diffuser with
the downstream geometric mean the highest (see Section 4, Table 6). The purpose of this condition is to
verify that the effluent as currently monitored is representative of that entering the Neuse River and that
permit limits are compliant at the point of discharge to the river.
Inflow & Infiltration (I&I). The Town reported on its NPDES permit renewal application an average daily
volume of 0.208 MGD I&I. To minimize I&I, the Town is maintaining ongoing efforts to identify and
rehabilitate sources of I&I in their collection system.
Sludge Management Plan. Waste Activated Sludge undergoes thickening, and is stabilized, then hauled by
truck for liquid land application on private farmland as Class B residuals under permit WQ0000702.
2. Receiving Waterbody Information
Receiving Waterbody Information
Outfalls/Receiving Stream(s):
Outfall 002 — Neuse River Estuary 1
Stream Segment:
27-(104)b
Stream Classification:
SB, Sw, NSW
Drainage Area (mi):
NA
Summer 7Q 10 (cfs)
Tidal
Winter 7Q 10 (cfs):
Tidal
30Q2 (cfs):
Tidal
Average Flow (cfs):
Tidal
IWC (% effluent) 2:
14.6 at 2.25 MGD
15.6 at 2.8 MGD
16.3 at 3.5 MGD
2022 303(d) listed / parameter:
None
Subject to TMDL / parameter:
Neuse River Estuary TMDL for Total Nitrogen (2002)
Statewide TMDL for Mercury (2012)
River Basin / HUC:
Neuse / 03020204
USGS Topo Quad:
Havelock, NC
Footnote:
1. Outfall 001 was removed in the 2020 permit based on outfall relocation to the Neuse River Estuary.
2. Summer dilution data defines IWC (%) at 10 ft radius from model run in 2008.
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NCO021253
The overall assessment category of the receiving stream in 2022 is Exceeding Criteria (Category 4: not
impaired due to TMDL), with Category 4 exceedances for Chlorophyll -a and Total Nitrogen.
3. Effluent Data Summary
Effluent data is summarized below for the period October 2019 - April 2024.
Table 1. Effluent Data Summary
Parameter
Units
Average
Max
Min
Permit Limit'
Flow
MGD
1.35
9.47
0.79
2.25 MGD
Total Monthly Flow
MG/mo.
40.46
57.12
28.90
Monitor & Report
BOD5 summer
(Apr 1 Oct 31)
m /L
g
4.2
54
< 2
MA = 5.0
WA = 7.5
BOD5 winter
(Nov 1 Mar 31)
m /L
g
5.3
65
< 2
MA = 10.0
WA = 15.0
BOD removal
%
98.3
100.0
58.9
> 85
Total Suspended Solids (TSS)
mg/L
2.5
5.5
< 2.0
MA = 30.0
WA = 45.0
TSS removal
%
99.0
100.0
45.9
> 85
Ammonia (NH3-N)
mg/L
0.14
4.00
< 0.04
MA = 1.0
WA = 3.0
Dissolved Oxygen (DO)
mg/L
7.60
19.60
4.67
DA > 5.0
Enterococci
(geometric mean)
#/100 mL
1.4
1300
< 1
MA = 35
WA = 276
pH
SU
8.06
8.60
6.45
6.8 - 8.5
Temperature
°C
21.4
29.9
7.5
Monitor & Report
Total Nitrogen (TN)
mg/L
3.90
17.95
0.68
Monitor & Report
TN Load
lb/mo.
1285.2
4301.1
16.5
Monitor & Report
TN Load
lb/yr
10,685
17,326
2044
21,400
Total Phosphorus (TP)
mg/L
0.95
6.75
0.07
QA = 2.0
Total Copper
µg/L
9.6
57
3
Monitor & Report
Footnotes on next page.
Fnntnnte,
MA = Monthly Average; WA = Weekly Average; DM = Daily Maximum; QA = Quarterly Average.
The maximum annual average daily flow was 1.58 MGD or 70.2% of the permitted flow in 2020.
4. Instream Data Summary
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NC0021253
Instream monitoring may be required in certain situations, for example: 1) to verify model predictions when
model results for instream DO are within 1 mg/1 of instream standard at full permitted flow; 2) to verify
model predictions for outfall diffuser; 3) to provide data for future TMDL; 4) based on other instream
concerns. Instream monitoring may be conducted by the Permittee, and there are also Monitoring Coalitions
established in several basins that conduct instream sampling for the Permittee (in which case instream
monitoring is waived in the permit as long as coalition membership is maintained).
Is this facility a member of a Monitoring Coalition with waived instream monitoring (YIN): YES, but no
provisional waiver is available for instream monitoring. The coalition had stated that it will not be
responsible for instream monitoring requirements associated with the outfall diffuser.
Name of Monitoring Coalition: Lower Neuse Basin Association (LNBA).
If applicable, summarize any instream data and what instream monitoring will be proposed for
this permit action: The permit has instream monitoring requirements at three locations at multiple depths
for the discharge into the Neuse River Estuary via a diffuser at all permitted flow tiers. The permit requires
instream monitoring for eleven parameters at three locations: upstream 10 ft from the diffuser center (S1;
Outfa110S1), downstream 10 ft from the diffuser center (S2; Outfa110S2), and within 10 ft beyond the end
of the diffuser in line with it (S3; Outfall OS3). The instream monitoring requirements for the Neuse River
discharge were placed in the 2012 permit modification following an extensive tidal model developed by
Tetra Tech. The sampling requirements, which include seasonal frequencies and a variety of sample depths
specific to each parameter of concern at each location, were adopted from the USMCAS Cherry Point
(NC0003816) permit, since that facility also discharges via a diffuser into the same river segment as
Havelock WWTP. The instream sampling requirements are based on a 10 ft radius mixing zone from the
Havelock WWTP diffuser established from the Tetra Tech model. No waiver is available.
Instream data were reviewed from submitted DMRs spanning October 2019 April 2024. The data were
checked across depths and analyzed for differences among the three sample sites using Single -Factor
ANOVA with significance level (p-value) set at 0.05. Review found numerous questionable data including
41
095
, "-0.02" and unrealistically high values for DO, Salinity and pH. Contact with the ORC revealed issues
with probe readings, confirming these data to be outliers and not representative of the above parameters.
The outlier data were removed from analysis. Instream data review findings for each parameter are
summarized below; numeric summaries are expressed as average (minimum — maximum).
Dissolved Oxygen — Dissolved Oxygen (DO) remains in the permit as a parameter of concern for aquatic
life. The receiving stream segment of the Neuse River Estuary is meeting the criteria for DO (5 mg/L for
aquatic life in saltwater) according to the 2022 Integrated Report. No statistically significant differences
were found across sites at any depth (ANOVA: p > 0.05). A decrease in DO with depth appeared evident
among sites (Table 2) and found statistically significant at S3 (ANOVA: p < 0.05); this pattern consistent
with a salt wedge as interpreted from the previous permit fact sheet's data review.
Table 2. Instream DO Data Summary
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NCO021253
Parameter
Depth
Outfa110S1
Outfa110S2
OutfallOS3
Upstream
Downstream
Diffuser Line
surface
7.86
7.92
7.84
(2.91 - 16.01)
(2.63 - 15.79)
(0.69 - 16.16)
1 in
7.75
7.68
7.51
Dissolved Oxygen,
(0.36 - 18.83)
(0.83 - 17.20)
(0.67 - 16.31)
2m
7.06
7.28
6.99
mg/L
(0.19 - 14.41)
(0.29 - 14.87)
(0.37 - 14.18)
3 in
7.27
7.34
7.34
(0.50 - 14.26)
1 (0.29 - 13.80)
1 (0.20 - 13.93)
Temperature - Temperature remains in the permit as a parameter of concern for aquatic life. The receiving
stream segment of the Neuse River Estuary is meeting the criteria for Temperature (32°C for aquatic life in
lower piedmont and coastal plain waters) according to the 2022 Integrated Report. No significant
differences were found among sites at any depth or across depths (ANOVA; all tests p > 0.05). Surface
water summer maxima were below the water quality standard of 32°C for lower piedmont and coastal plain
waters (15A NCAC 02B .0222) (Table 3). Maximum upstream to downstream increase was 0.3°C during
summer months (June -August), less than the increase standard of 0.8°C in those months (15A NCAC 02B
.0222). For the remaining months, downstream temperature increase was greater than the 2.2°C standard
on two occurrences: 3.0°C on 5/4/2021 and 7.4°C on 5/19/2022.
Table 3. Instream Temperature Data Summary.
Parameter
Depth
Outfa110S1
Outfa110S2
Outfa110S3
Upstream
Downstream
Diffuser Line
surface
21.8
21.8
21.8
(5.0 - 29.9)
(5.0 - 29.8)
(5.0 - 29.8)
1 in
21.8
21.8
21.8
(5.0 - 29.9)
(1.4 - 29.8)
(5.5 - 29.8)
Temperature, °C
2 in
21.8
21.8
21.8
(5.1 - 29.9)
(5.0 - 29.8)
(5.0 - 29.8)
3 in
21.6
21.6
21.6
(5.8 - 34.5)
(5.1 - 29.8)
(5.0 - 29.6)
Salinity - Salinity remains in the permit as a physiochemical parameter that affects algal bloom formation
and intensity in the Neuse River Estuary (DWR Neuse River Basinwide Water Quality Plan, 2009). The
receiving segment of the Neuse River Estuary is exceeding criteria for Chlorophyll -a (40 ug/L for aquatic
life in all state waters), but not impaired due to insufficient data. Reviewed instream data found no
significant differences among sites at any depth (ANOVA; all tests p > 0.05) but showed a consistent
increase in salinity with depth among all sites (Table 4), indicating a salt wedge that is consistent with
salinity patterns found near the Cherry Point outfall, 0.5 miles in the Neuse River Estuary.
Table 4. Instream Salinity Data Summary.
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NCO021253
Parameter
Depth
Outfa110S1
Outfa110S2
Outfa110S3
Upstream
Downstream
Diffuser Line
surface
16.35
16.46
16.49
(0.18 - 34.71)
(1.10 - 34.14)
(1.01 - 34.55)
1 m
17.04
16.96
16.99
(1.04 - 34.80)
(1.09 - 35.16)
(1.01 - 34.95)
Salinity, ppt
2 m
18.08
17.87
18.31
(1.01 - 42.33)
(1.09 - 40.07)
(1.01 - 40.34)
3 m
19.25
18.74
19.01
(1.01-44.50)
(1.09-44.1)
(1.01-44.60)
pH- pH remains in the permit as a parameter of concern for aquatic life. The receiving stream segment of
the Neuse River Estuary is meeting the criteria for pH (4.3 SU for aquatic life in swamp waters) according
to the 2022 Integrated report. No significant differences were found among sites at any depth (ANOVA; all
tests p > 0.05), but significant differences were detected across depths at Outfa110S3 with a steady decrease
at greater depths. Few surface water measurements were outside the standard range of 6.8 - 8.5 SU (15A
NCAC 02B .0222) but were consistently so across sample sites. No measurements were below the swamp
standard of 4.5 pH (15A NCAC 02B .0222) at any depth (Table 5).
Table 5. Instream pH Data Summary.
Parameter
Depth
OutfallOSI
OutfallOS2
Outfa110S3
Upstream
Downstream
Diffuser Line
surface
7.75
7.78
7.77
(6.10 - 9.32)
(6.10 - 9.40)
(5.90 - 9.30)
1 m
7.71
7.74
7.72
(5.60 - 9.31)
(5.90 - 9.37)
(5.90 - 9.28)
PH, S.U.
2 m
7.61
7.63
7.63
(5.70 - 8.54)
(6.00 - 8.52)
(6.00 - 9.96)
3 m
7.51
7.58
7.54
(5.70 - 9.96)
(6.00 - 8.80)
(6.00 - 8.80)
The above physical parameters (DO, Temperature, Salinity and pH) indicate a salt wedge with an increase
in salinity and decrease in DO and pH from the surface to 3 m depth.
Enterococci - Enterococci remains in the permit as a parameter of concern for aquatic life and human health
in saltwaters, monitored at the surface only. The receiving stream segment of the Neuse River Estuary is
meeting the criteria for Enterococci (35 cfu/100 mL for recreational and swamp waters) according to the
2022 Integrated Report. Review of the data showed no difference among the three sites (ANOVA of log -
transformed data; F = 0.64; p > 0.05), with geometric means under the tidal saltwater quality standard of
35 cfu/100 mL (15A NCAC 02B .0222) (Table 6).
Table 6. Instream Enterococci Data Summary.
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NCO021253
Outfa110S1
Outfa110S2
Outfa110S3
Parameter
Depth
Upstream
Downstream
Diffuser Line
Enterococci,
surface
16.9*
20.3*
18.3*
cfu/100 mL
(< 1 - 521)
(< 1 - 411)
(< 1 - 344)
*Geometric mean.
Secchi Depth - The Secchi Depth is monitored 2/month June - September to measure the Photic Zone,
within which depth integrated sampling of the water column for nutrients (TN and TP) and Chlorophyll -a
is conducted. The Photic Zone is 2X the Secchi Depth according to DWR Ambient Monitoring Section's
Intensive Survey Branch Standard Operating Procedures Manual: physical and chemical monitoring, Ver.
2.1 (NC AMS 2013). Secchi depths were provided from the ORC upon request as this and the calculated
photic zone parameters are not submitted in monthly DMRs. Their summaries along with those of the Photic
Zone sampled (i.e., depth -integrated) parameters are in Table 7 below.
Table 7. Instream Secchi and Photic Zone depth and Depth -integrated Data Summary.
Parameter
Units
Outfa110S1
Outfa110S2
Outfa110S3
Upstream
Downstream
Diffuser Line
Secchi Depth, raw
ft
2.8
3.0
3.0
(1.0 - 8.0)
(1.0 - 9.0)
(1.0 - 8.0)
Secchi Depth, converted
In
0.86
0.91
0.90
(0.30 - 2.44)
(0.30 - 2.44)
(0.30 - 2.44)
Photic Zone, calculated
In
1.72
1.81
1.80
(0.61 - 4.88)
(0.61 - 5.49)
(0.61 - 4.88)
TKN
mg/L
0.89
0.86
0.84
(0.39 - 1.47)
(0.30 - 1.88)
(0.39 - 1.73)
Chlorophyll -a
mg/L
21.95
21.38
21.82
(8.02 - 63.74)
(10.63 - 55.31)
(8.02 - 63.92)
NO2+NO3
mg/L,
0.05
0.05
0.06
(0.03 - 0.14)
(< 0.04 - 0.014)
(< 0.04 - 0.26)
Ammonia (NH3-N)
mg/L
0.08
0.06
0.07
(0.04 - 0.35)
(0.04 - 0.33)
(0.04 - 0.20)
Total Phosphorus
mg/L
0.14
0.13
0.19
(0.04 - 0.37)
(0.04 - 0.34)
(0.02 - 2.51)
The Secchi depths were not found to differ on average across the three sites when tested by t-test (all
resulting probabilities of differences were > 0.05). The resulting photic zones are therefore equivalent,
making comparisons of integrated sample data consistent across sites. All nutrient and related parameters
did not test significantly different on average among instream sites.
5. Compliance Summary
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NC0021253
Summarize the compliance record with permit effluent limits (past 5 years): From June 2019 through May
2024 the facility had reported 20 weekly average BOD exceedances and 9 monthly average BOD
exceedences, resulting in 2 Notices of Deficiency and 27 Notices of Violation.
Summarize the compliance record with aquatic toxicity test limits and any second species test results (past
5 years): The facility passed 18 of 18 quarterly chronic toxicity tests as well as four of four second species
chronic toxicity tests, sampled in December 2023, January, February, and March 2024.
Summarize the results from the most recent compliance inspection: The most recent facility inspection,
conducted on 3/5/2024, judged the facility to be non -compliant based on the findings of: 1) spilt sludge on
the ground leading to the receiving water from a recent bypass incident; 2) influent sampler was not
refrigerated to below 6°C; 3) bar screen and grit chamber currently bypassed; and 4) thickened sludge
blankets in the clarifiers with high concentrations of MLSS in the aeration basin. An NOV & Intent to
Assess Civil Penalty was issued on 3/19/2024 in response to spill event.
6. Water Quality -Based Effluent Limitations (WQBELs)
6.1. Dilution and Mixing Zones
In accordance with 15A NCAC 213.0206, the following streamflows are used for dilution considerations
for development of WQBELs: 1 Q 10 streamflow (acute Aquatic Life); 7Q 10 streamflow (chronic Aquatic
Life; non -carcinogen HH); 30Q2 streamflow (aesthetics); annual average flow (carcinogen, HH).
If applicable, describe any other dilution factors considered (e.g., based on CORMIX model results): Tetra
Tech conducted nearfield dilution modeling for the facility's proposed expansions in 2008, calculating the
90`h percentile summer effluent concentration (%) at the nearfield radius for each flow tier (Table 8). The
Division selected these % effluent concentrations as the IWC for each flow tier at a 10 ft radius from the
diffuser. Their respective dilution factors are 6.85 at 2.25 MGD, 6.41 at 2.8 MGD, and 6.135 at 3.5 MGD.
Table 8. Summer effluent plume concentrations for the 3-tiered flow expansion at Havelock WWTP
(Nearfield dilution model results, Tetra Tech 2008).
Expansion Flow Tier
Model Nearfield Radius
901h Percentile
Effluent Concentration
2.25 MGD
1.6 in
14.6 %
2.8MGD
1.7m
15.6%
3.5MGD
1.8m
16.3%
If applicable, describe any mixing zones established in accordance with 15A NCAC 2B.0204(b): The
current BOD monthly average limits of 5.0 mg/L summer and 10.0 mg/L winter were set from speculative
limits developed in 2009 for the proposed flow expansions. The speculative BOD limits were applied to all
expansion effluent flow pages in the 2012 permit modification.
6.2. Oxygen -Consuming Waste Limitations
Limitations for oxygen -consuming waste (e.g., BOD) are generally based on water quality modeling to
ensure protection of the instream dissolved oxygen (DO) water quality standard. Secondary TBEL limits
(e.g., BOD = 30 mg/L for Municipals) may be appropriate if deemed more stringent based on dilution and
model results.
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NC0021253
If permit limits are more stringent than TBELs, describe how limits were developed: The current BOD
monthly average limits of 5.0 mg/L summer and 10.0 mg/L winter were set from speculative limits
developed in 2009 for the proposed flow expansions. The speculative BOD limits were applied to all
expansion effluent flow pages in the 2012 permit modification. No changes are proposed.
6.3. Ammonia and Total Residual Chlorine Limitations
Limitations for ammonia are based on protection of aquatic life utilizing ammonia chronic criteria of 1.0
mg/L (summer) and 1.8 mg/L (winter). Acute ammonia limits are derived from chronic criteria, utilizing a
multiplication factor of 3 for Municipals and a multiplication factor of 5 for Non -Municipals.
Limitations for Total Residual Chlorine (TRC) are based on the NC water quality standard for protection
of aquatic life (17 µg/L) and capped at 28 µg/L (acute impacts). Due to analytical issues, all TRC values
reported below 50 µg/L are considered compliant with their permit limit.
Describe any proposed changes to ammonia and/or TRC limits for this permit renewal: The current year-
round NH3-N monthly average limit of 1.0 mg/L was set from speculative limits in 2009. The current permit
lacks TRC limits because the facility is using UV for disinfection. Should the facility use chlorination for
disinfection, the permit has a special condition that includes instructions for informing the Division,
monitoring and reporting with limits for each discharge location (13 µg/L for the discharge into the Neuse
River). The special condition has been removed and replaced by TRC limits and monitoring added to the
permit with a footnote to monitor if/when chlorination is used for disinfection.
Ammonia and TRC have been reviewed in the attached Wasteload Allocation (WLA) sheets for each flow
tier, using 7Q 10 values of 0.0 cfs as the Neuse River Estuary experiences tidal flow. Current limits for both
parameters were found to be more stringent than the toxicity -based calculated results in the WLA sheets.
Therefore, no changes in limits were made to the permit.
6.4. Reasonable Potential Analysis (RPA) for Toxicants
If applicable, conduct RPA analysis and complete information below. The need for toxicant limits is based
upon a demonstration of reasonable potential to exceed water quality standards (RP), a statistical evaluation
that is conducted during every permit renewal utilizing the most recent effluent data for each outfall. The
RPA is conducted in accordance with 40 CFR 122.44 (d) (i). The NC RPA procedure utilizes the following:
1) 95% Confidence Level/95% Probability; 2) assumption of zero background; 3) use of % detection limit
for "less than" values; and 4) streamflows used for dilution consideration based on 15A NCAC 2B.0206.
Effective April 6, 2016, NC began implementation of dissolved metals criteria in the RPA process in
accordance with guidance titled NPDES Implementation of Instream Dissolved Metals Standards, dated
June 10, 2016.
Because the receiving water is saltwater, Hardness monitoring is not required. The saltwater RPA is used
for toxics assessment. Dilution factors from the 2009 modeling (see Section 6.1 above) was applied to the
RPA at the three flow tiers.
An RPA was conducted on effluent toxicant data collected between October 2019 and April 2024 for the
following parameters: arsenic, cadmium, total chromium, copper, cyanide, lead, molybdenum, nickel,
selenium, silver, and zinc. Pollutants of concern included toxicants with positive detections and associated
water quality standards/criteria. Based on this analysis, the following permitting actions are proposed for
this permit:
• Effluent Limit with Monitoring. The following parameters will receive a water quality -based
effluent limit (WQBEL) since they demonstrated a reasonable potential to exceed applicable water
quality standards/criteria: None at all tiers.
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NC0021253
Monitoring Only. The following parameters will receive a monitor -only requirement since they
did not demonstrate reasonable potential to exceed applicable water quality standards/criteria, but
the maximum predicted concentration was > 50% of the allowable concentration: Copper at all
tiers.
No Limit or Monitoring: The following parameters will not receive a limit or monitoring, since
they did not demonstrate reasonable potential to exceed applicable water quality standards/criteria
and the maximum predicted concentration was < 50% of the allowable concentration: Arsenic,
Cadmium, Chromium, Cyanide, Lead, Selenium, Silver at all tiers.
POTW Effluent Pollutant Scan Review: Three effluent pollutant scans (February 2021, May 2022
and August 2023) were evaluated for additional pollutants of concern. The following parameters
were detected in the scans and evaluated: Nickel, Total Phenols, Zinc.
o The following parameter(s) will receive a water quality -based effluent limit (WQBEL)
with monitoring, since as part of a limited data set, two samples exceeded the allowable
discharge concentration: None at all tiers.
o The following parameter(s) will receive a monitor -only requirement, since as part of a
limited data set, one sample exceeded the allowable discharge concentration: None at all
tiers.
If applicable, attach a spreadsheet of the RPA results as well as a copy of the Dissolved Metals
Implementation Fact Sheet for freshwater/saltwater to this Fact Sheet. Include a printout of the RPA
Dissolved to Total Metal Calculator sheet if this is a Municipality with a Pretreatment Program.
6.5. Toxicity Testing Limitations
Permit limits and monitoring requirements for Whole Effluent Toxicity (WET) have been established in
accordance with Division guidance (per WET Memo, 8/2/1999). Per WET guidance, all NPDES permits
issued to Major facilities or any facility discharging "complex" wastewater (contains anything other than
domestic waste) will contain appropriate WET limits and monitoring requirements, with several exceptions.
The State has received prior EPA approval to use an Alternative WET Test Procedure in NPDES permits,
using single concentration screening tests, with multiple dilution follow-up upon a test failure.
Describe proposed toxicity test requirement: Havelock WWTP is a Major POTW discharging domestic
wastewater with chronic WET limits of 15% effluent at 2.25 MGD, 16% at 2.8 MGD and 16% at 3.5 MGD,
monitored quarterly. The WET limits are based on the % IWCs designated from model results presented
for the proposed expansions and outfall relocation with diffuser to the Neuse River in 2009.
6.6. Mercury Statewide TMDL Evaluation
There is a statewide TMDL for mercury approved by EPA in 2012. The TMDL target was to comply with
EPA's mercury fish tissue criteria (0.3 mg/kg) for human health protection. The TMDL established a
wasteload allocation for point sources of 37 kg/year (81 lb/year), and is applicable to municipals and
industrial facilities with known mercury discharges. Given the small contribution of mercury from point
sources (-2% of total load), the TMDL emphasizes mercury minimization plans (MMPs) for point source
control. Municipal facilities > 2 MGD and discharging quantifiable levels of mercury (> 1 ng/L) will receive
an MMP requirement. Industrials are evaluated on a case -by -case basis, depending if mercury is a pollutant
of concern. Effluent limits may also be added if annual average effluent concentrations exceed the WQBEL
value (based on the NC WQS of 12 ng/L) and/or if any individual value exceeds a TBEL value of 47 ng/L.
The current permit does not have an MMP requirement, as it was removed in the 2020 renewal based on
data review not finding any results > 2.5 ng/L. Nevertheless, data was available for review (Table 9).
Table 9. Mercury Effluent Data Summary
Page 10 of 18

NC0021253
2019
2020
2021
2022
2023
Number of Samples
1
1
0
1
2
Annual Average Conc. ng/L
0.5
0.5
NA
1.4
0.5
Maximum Conc., ng/L
0.50
0.50
NA
1.40
0.50
TBEL, ng/L
47
WQBEL, ng/L
25.0
Describe proposed permit actions based on mercury evaluation: Since no annual average mercury
concentration exceeded the WQBEL at either flow tier, and no individual mercury sample exceeded the
TBEL (Table 5), no mercury limit is required. Only one of five data were detected, at 1.4 ng/L. Therefore,
an MMP is not deemed necessary and is not added to the permit.
6.7. Other TMDL/Nutrient Management Strategy Considerations
If applicable, describe any other TMDLs/Nutrient Management Strategies and their implementation within
this permit: The Environmental Management Commission (EMC) adopted Nutrient Management Strategy
rules in December 1997, classifying the entire Neuse River Basin as Nutrient Sensitive Waters (NSW). The
point source rule (15A NCAC 02B .0713) sets Total Nitrogen (TN) discharge limits for all point source
dischargers larger than 0.5 MGD.
The rule also allows dischargers to form a group compliance association and work together to reduce
nitrogen; this option allows the association members added flexibility in controlling nitrogen discharges.
At the same time, the association is subject to a group NPDES permit ensuring that the association and its
members are accountable if they exceed the applicable nitrogen limits.
Under this rule, there are three types of TN limit in the Neuse:
1. The individual limits in the discharger's individual permit,
2. The aggregate limit in an association's group NPDES permit, and
3. The individual allocations/limits for each Association member, also in that Association permit.
A discharger may be subject to the first type of limit, or to the second and third, but never to all three at the
same time. The discharger is first subject to the TN limit (if any) in its individual NPDES permit. If the
discharger becomes a co-permittee to a compliance association's group NPDES permit, it is then governed
by the TN limits in that permit. If the association complies with its group TN limit in a given year, all
members are deemed to be in compliance with their individual allocations/limits in the group permit. If the
association exceeds its limit, the members then become subject to their individual allocations/limits as well.
Regardless of which permit governs a TN discharge, allocations/limits will likely change over time as the
dischargers purchase, sell, trade, lease, or otherwise transfer nitrogen allocations. The Division will modify
the affected permits as necessary to ensure that the limits are kept up-to-date and reflect any such
transactions.
The current permit includes nutrient limits consistent with the Nutrient Management Strategy rule (15A
NCAC 02B .0234). Under the rule, the City of Havelock receives a TN load limit of 21,400 lb/yr, a calendar
year limit. The current facility annual TN Load mass limit is a fixed allocation and will remain set at 21,400
lbs/yr regardless of which effluent limit page is active. Monthly calculation and reporting of TN Load mass
is required on all effluent limit pages. There are no plans for further regionalization.
Page 11 of 18

NC0021253
The City of Havelock is a member of the Neuse River Compliance Association (NRCA). So long as it
remains a co-permittee member, it is deemed to be in compliance with the TN limit in this permit, and its
TN discharge is governed instead by the Association's group NPDES permit (NCC000001), issued
December 30, 2013; most recently renewed December 12, 2018. The group's permit estuary TN limit is
1,187,213 lb/yr, of which the facility's estuary TN allocation/limit is 21,400 lb/yr, the same as in its
individual permit.
As reported in the NRCA 2023 Annual Report, the City of Havelock had met its individual TN allocation
in 2023 with an end -of -pipe discharge of 13,747 lbs and The NRCA's 2023 total loading was 509,441 lb
TN, well below its total estuary limit.
To ensure that the facility can meet its TN load limits with the two flow expansions, a Special Condition
was added to the permit in 2020 requiring an Authorization to Operate based on the Permittee's
demonstration that it can meet the TN limits. This requirement is maintained.
In the current permit, effluent TP limit is 2.0 mg/L quarterly average for all flow tiers beyond 1.9 MGD,
based on membership in the NCRA. Termination of membership will automatically assign 1.0 mg/L as the
TP monthly limit. This conditional requirement is based on the Neuse Nutrient Strategy rules for expanding
facilities (15A NCAC 02B .0234(8)(g)). A conditional footnote narrative for the TP concentration limit is
included in each flow tier effluent limit page. No changes were made.
6.8. Other WQBEL Considerations
If applicable, describe any other parameters of concern evaluated for WQBELs: The emerging
contaminants 1,4-Dioxane and PFAS group of synthetic chemicals were considered for permit
requirements. The facility treats 100% domestic wastewater and facility discharges into the Neuse River
Estuary with no downstream water supply watershed. 1,4-Dioxane is not expected in the effluent; no
requirements were added to the permit.
Due to the pervasiveness of PFAS chemicals in the environment, PFAS monitoring was added to the permit
at a 2/year frequency with delayed implementation. See Section 10 Monitoring Requirements below for
details.
If applicable, describe any special actions (HQW or ORW) this receiving stream and classification shall
comply with in order to protect the designated waterbody: NA.
If applicable, describe any compliance schedules proposed for this permit renewal in accordance with 15A
NCAC 2H 0107(c)(2)(B), 40CFR 122.47, and EPA May 2007 Memo: NA.
If applicable, describe any water quality standards variances proposed in accordance with NCGS 143-
215.3(e) and 15A NCAC 2B.0226 for this permit renewal: NA.
7. Technology -Based Effluent Limitations (TBELs)
Municipals if not applicable, delete and skip to Industrials)
Are concentration limits in the permit at least as stringent as secondary treatment requirements (30 mg/L
BODs/TSS for Monthly Average, and 45 mg/L for BODs/TSS for Weekly Average). YES.
Page 12 of 18

NC0021253
If NO, provide a justification for alternative limitations (e.g., waste stabilization pond). NA.
Are 85% removal requirements for BODs/TSS included in the permit? YES. Review of submitted removal
rates of both parameters found seven (7) occurrences of < 85% BOD removal and one (1) occurrence of <
85% TSS removal.
If NO, provide a justification (e.g., waste stabilization pond). NA.
8. Antidegradation Review (New/Expanding Discharge)
The objective of an antidegradation review is to ensure that a new or increased pollutant loading will not
degrade water quality. Permitting actions for new or expanding discharges require an antidegradation
review in accordance with 15A NCAC 2B.0201. Each applicant for a new/expanding NPDES permit must
document an effort to consider non -discharge alternatives per 15A NCAC 2H.0105(c)(2). In all cases,
existing instream water uses and the level of water quality necessary to protect the existing use is maintained
and protected.
If applicable, describe the results of the antidegradation review, including the Engineering Alternatives
Analysis (EAA) and any water quality modeling results: NA.
9. Antibacksliding Review:
Sections 402(o)(2) and 303(d)(4) of the CWA and federal regulations at 40 CFR 122.44(1) prohibit
backsliding of effluent limitations in NPDES permits. These provisions require effluent limitations in a
reissued permit to be as stringent as those in the previous permit, with some exceptions where limitations
may be relaxed (e.g., based on new information, increases in production may warrant less stringent TBEL
limits, or WQBELs may be less stringent based on updated RPA or dilution).
Are any effluent limitations less stringent than previous permit (YES/NO): NO.
If YES, confirm that antibacksliding provisions are not violated: NA.
10. Monitoring Requirements
Monitoring frequencies for NPDES permitting are established in accordance with the following regulations
and guidance: 1) State Regulation for Surface Water Monitoring, 15A NCAC 213.0500; 2) NPDES
Guidance, Monitoring Frequency for Toxic Substances (7/15/2010 Memo); 3) NPDES Guidance, Reduced
Monitoring Frequencies for Facilities with Superior Compliance (10/22/2012 Memo); 4) Best Professional
Judgement (BPJ). Per US EPA (Interim Guidance, 1996), monitoring requirements are not considered
effluent limitations under Section 402(o) of the Clean Water Act, and therefore anti -backsliding
prohibitions would not be triggered by reductions in monitoring frequencies.
All monitoring frequencies in the current permit follow 15A NCAC 02B .0508 except for TSS, Ammonia
and Enterococci, which have reduced monitoring at the 2.25 MGD flow tier from evaluation for exceptional
performance in the 2020 permit renewal upon request of the applicant. In an e-mail on 7/17/2024, the
Permittee requested monitoring reduction frequencies for the above parameters, attaching a technical
Page 13 of 18

NC0021253
memorandum from Hazen (consultant), who conducted the analysis. In eligibility criteria review over the
past three years (June 2021— May 2024), the facility and no such exceedances of the remaining parameters.
DWR review found two BOD monthly limits in that time period. Further, the facility has had no SOCs, and
neither the Permittee nor any of its employees have been convicted of criminal violations of the Clean
Water Act.
Hazen's analysis of effluent data from June 2021 — May 2024 found BOD average to exceed the 50% of
the summer limit criterion and exceed the criterion of 15 data over 200% of the monthly average in winter.
Ammonia, TSS and Enterococci data met the numerical criteria. DWR evaluation of these data yielded the
same results, verifying Hazen's conclusions. Reduced monitoring for TSS, Ammonia and Enterococci will
be maintained at 2/week, and monitoring for BOD be maintained at daily, all at the 2.25 MGD flow tier.
Upon expansion to 2.8 MGD and 3.5 MGD, the Town shall conduct daily monitoring for TSS, Ammonia
and Enterococci. After six (6) months of daily monitoring at each expansion flow tier, the Town may request
a reduction in the monitoring frequency to twice per week sampling for any of the above parameters for
which no effluent permit limit violations have occurred. This future change in monitoring frequency for
these parameters would be considered a minor permit modification.
PFAS monitoring at 2/year frequency was added to the permit to generate data for future evaluation.
Implementation of PFAS monitoring is delayed until six months after the final EPA Method 1633 is
published in the Federal Register to allow laboratories to become certified in the new method.
For instream monitoring, refer to Section 4
11. Electronic Reporting Requirements
The US EPA NPDES Electronic Reporting Rule was finalized on December 21, 2015. Effective December
21, 2016, NPDES regulated facilities are required to submit Discharge Monitoring Reports (DMRs)
electronically. Effective December 21, 2020, NPDES regulated facilities will be required to submit
additional NPDES reports electronically. This permit contains the requirements for electronic reporting,
consistent with Federal requirements.
12. Summary of Proposed Permitting Actions:
Table 4. Current Permit Conditions and Proposed Changes at 2.25, 2.8 and 3.5 MGD'.
Parameter
Current Permit
Proposed Change
Basis for Condition/Change
MA = 2.25, 2.8, 3.5
Flow
Mo itoMGD
influent or
No change
15A NCAC 2B .0505
effluent continuously
Parameter
10, Current Permit
Proposed Change
Basis for Condition/Change
Total Monthly Flow
Monitor monthly at all
No change
[For calculation of Total Nitrogen &
tiers
otal Phosphorus loads.
Page 14 of 18

NCO021253
Bacteriological
Outfall is 5.7 miles from the facility,
Representation
No requirement
Add special condition
raising concerns of bacterial
Study
regrowth in effluent pipe.
Summer:
MA = 5.0 mg/L
WQBEL. Based on protection of DO
WA = 7.5 mg/L
standard as set in Speculative Limits
BODs
Winter:
No change
for proposed 2.25, 2.8, 3.5 MGD
MA = 10.0 mg/L
expansions in 2009.
WA = 15.0 mg/L
Monitoring reduction frequency (MRF)
Monitor influent &
criteria not met.
effluent daily at all tiers
No change in limits
Monitor 2/week at 2.25
MA = 30.0 mg/L
MGD; daily at 2.8 &
WA = 45.0 mg/L
3.5 MGD.
BEL. Secondary treatment standards; 40
TSS
Monitor influent &
2.8 & 3.5 MGD:
CFR 133; 15A NCAC 2B .0406.
effluent 2/week at all
Monitor 2/Week —
MRF criteria met; corrected to apply
conditional upon 6
only to current tier.
tiers
months of daily
monitoring and 100%
compliance
No change in limits
Monitor 2/week at 2.25
MA = 1.0 mg/L
MGD; daily at 2.8 &
WQBEL. Best Professional Judgement
WA = 3.0 mg/L
3.5 MGD.
(BPJ) based on using the best available
Ammonia (NH3-N)
Monitor effluent 2/week
2.8 & 3.5 MGD:
technology.
at all tiers
Monitor 2/Week —
MRF criteria met; corrected to apply
Monitor instream in
conditional upon 6
only to current tier.
summer months
months of daily
monitoring and 100%
compliance
DA > 5.0 mg/L
DO
Monitor effluent daily
No change e
WQBEL. State WQ standard, 15A
Monitor instream across
NCAC 2B .0200; .0508.
depths
No change in limits
Monitor 2/week at 2.25
MA = 35 /100 mL
MGD; daily at 2.8 &
WA = 276 /100 mL
3.5 MGD.
WQBEL. State WQ standard for
Enterococci
Monitor effluent 2/week
2.8 & 3.5 MGD:
saltwater, 15A NCAC 2B .0220.
at all tiers
Monitor 2/Week—
MRF criteria met; corrected to apply
Monitor surface instream
conditional upon 6
only to current tier.
months of daily
monitoring and 100%
compliance
Parameter
Current Permit
Proposed Change
Basis for Condition/Change
Total Residual
Special condition.
DM — 13.0 µg/L
Remove special
condition; add limit and
WQBEL. State WQ standard for
Chlorine (TRC)
Monitor effluent daily
monitoring in effluent
saltwater, 15A NCAC 2B .0220.
Page 15 of 18

NC0021253
sheets; add footnote to
monitor and report when
chlorination in use.
Between 6.8 and 8.5 SU
pH
Monitor effluent daily
No change
WQBEL. State WQ standard for
Monitor instream across
saltwater, 15A NCAC 2B .0220.
depths
Salinity
Monitor instream across
No change
Model results of mixing zone of outfall
depths
diffuser
Monitor & report effluent
Temperature
daily
Monitor instream across
No change
15A NCAC 2B .0508.
depths
Monitor & report effluent
Total Kjeldahl
weekly
No change
For Total Nitrogen (TN) calculation,
Nitrogen (TKN)
Monitor & report
15A NCAC 02B .0500.
instream in summer
Monitor & report effluent
Nitrite -Nitrate
weekly
No change
For Total Nitrogen (TN) calculation,
(NO3+NO2)
Monitor & report
15A NCAC 02B .0500.
instream in summer
Total Nitrogen
Monitor & report effluent
No change
Neuse River Basin — NSW Management
weekly
Strategy, 15A NCAC 02B .0234.
QA = 2.0 mg/L
Monitor effluent weekly
WQBEL. Neuse River Basin — NSW
Total Phosphorus
Monitor & report
No change
Management Strategy, 15A NCAC 02B
instream in summer
.0234.
WQBEL. Reasonable Potential Analysis:
Total Copper
Monitor quarterly
No change
no reasonable potential to exceed stream
standard found; predicted maximum >
50% of allowable concentration.
Add 2/yr monitoring
EPA recommendations (guidance memo,
PFAS
No requirement
with delayed
12/5/2022).
implementation
Chronic Mysidopsis
bahia Pass/Fail at 15%
WQBEL. No toxics in toxic amounts.
Chronic Toxicity
effluent at 2.25 MGD,
16 /o effluent at 2.8 and
No change
15A NCAC 02B .0200, 15A NCAC 02B
3.5 MGD. Monitor
.0500.
quarterly
Effluent Pollutant
Conduct three times per
Update sample years to
40 CFR 122
Scan
permit cycle
2026, 2027, 2028.
Electronic Reporting
Special Condition
Update language in
In accordance with EPA Electronic
special condition.
Reporting Rule 2015.
Footnote on next page.
Footnote:
1. MGD = Million Gallons per Day; MA = Monthly Average; WA = Weekly Average; DA = Daily Average;
DM = Daily Maximum; QA = quarterly average.
Page 16 of 18

NC0021253
13. Public Notice Schedule
Permit to Public Notice: 08/22/2024
Per 15A NCAC 2H .0109 & .0111, The Division will receive comments for a period of 30 days following
the publication date of the public notice. Any request for a public hearing shall be submitted to the Director
within the 30 days comment period indicating the interest of the party filing such request and the reasons
why a hearing is warranted.
14. NPDES Division Contact
If you have any questions regarding any of the above information or on the attached permit, please contact
Gary Perlmutter at [phone] or via email at gM.perlmutterkdeq.nc.gov.
15. Fact Sheet Addendum (if applicable)
Were there any changes made since the Draft Permit was public noticed (Yes/No): Copies of the draft
permit were sent to the City as well as the USEPA and multiple internal Division contacts. Comments were
received from the City, DWR Aquatic Toxicity Branch (ATB) and Neuse Riverkeeper. Their comments
and responses are below.
• Molly Nicholson with ATB noted an incorrect section reference in the permit via e-mail.
Corrections were made.
• Rodney George, the City's WWTP ORC, called questioning the representational study
requirement, noting that the only possible location for outfall sampling was at the cascade aerator,
which is an enclosed structure with a top hatch, with no apparent safe way to sample. This was
followed by an e-mail with images of the aerator. The images show ample space between internal
grating and walls to lower a sample thief for collection. The representation study special condition
is maintained in the permit.
• Samantha Krop, Neuse Riverkeeper with Sound Rivers, Inc., asked via e-mail about the Permitting
Action selection in the Fact sheet; why the "renewal" box and not "renewal with expansion" box
was checked. This question was answered because the expansion tiers are carried over from the
current permit, not introduced as new.
If Yes, list changes and their basis below:
• Section references were corrected from A.(7.) to A.(5.) in Section A.(6.) as noted by the Division's
ATB reviewer.
• Language was added to Section A.(6.) to sample for Effluent Pollutant Scans in the first three years
after permit flow expansion at each tier above 2.25 MGD.
• Submittal date for the effluent representational study plan has been adjusted forward relative to the
permit issuance.
16. Fact Sheet Attachments (if applicable):
• Sludge management description
Page 17 of 18

NC0021253
• Secchi Depth data
• 2022 Integrated Report, p. 711
• Monitoring Report Violations
• WET Test summary
• Second species (Menidia beryllina) toxicity test reports
• Compliance Inspection report, 3/5/2024
• NOV & Intent to Assess letter, 3/19/2024
• RPA sheets
• RPA Spreadsheet Summary and dissolved to total metal calculator
• Mercury WQBEL/TBEL evaluations
• Reduced monitoring request/analysis letter from ORC via Hazen memo
• Comments from DWR — ATB, City's ORC (including cascade aerator structure images) and
Sound Rivers Inc. (riverkeeper)
Page 18 of 18

City of Havelock Wastewater Treatment Plant
City of Havelock, North Carolina
Second Species Toxicity Testing Results 2023 - 2024

ET4flvH4vnT6,nc. (R64) 877-6942 . FAX (M4) 977•693B
P.C. Hex 15414. Greonuille. SC 29605 d Craftsman Court, Greer, SC 29664
Menidia beryllina Survival & Growth Test
EPA-821-R-02-014 Method 1006
Permit Renewal: Second Species Testing
Test Date:
Test Reviewed and Approved By:
Client: CITY OF HAVELOCK
Facility: WWTP
NPDES #: NCO021253
12-Dec-23
Laboratory Sample ID #: T66348
d?C)be;-t a,� E ACA0'-'-'
Robert W. Kelley, Ph.D. Amy McMahan
Lab Manager QA/QC Review
Certification #E87819 SCDHEC Certification #23104
Test results presented in this report conform to all requirements of
NELAC, conducted under NELAC Certification Number E87819
Florida Dept. of Health. Included results pertain only to provided samples. NCDENR Certification # 022
Page 1 of 7

Silverside Chronic Survival and Growth Test - Method 1006
Facilitv: HaVPlnr:k NPDES# NCO021253 Pipe#: 001 County: Craven
Laboratory: ETT Environmental, Inc. Comments
x
Signature of Operator in Responsible Charge t7G/QN� (fiel%
x rr� 6 -
Signature of Laboratory Supervisor
MAIL ORIGINAL TO: Environmental Sciences Branch
Division of Water Quality
NC DENR
1621 Mail Service Center
Raleigh, NC 27699-1621
Test Initiation Date/Time
12/12/23
/ 04:00 PM
Avg Wt/Surv. Control 0.4278
Test Organisms
Eff.
Repl.
1
2
4
4
Cultured In -House
control
Surviving #
10
9
10
9
% Survival
97.4 %
El
Outside Supplier
Original #
10
9
10
10
10
10
10
10
7.5
Surviving#
% Sur vival
9
10
9
10
100.0%
Original #
9
10
9
10
10
9
10
10
10
10
10
8
10
9
10
10
8.1
/ --
8.3
8.1
8.2
/ 8.0
8.3
8.2
8.2
8.0
8.2
8.1
8.1
7.9
----
7.8
pH (SU) IniUFin
D (mg/L) IniUFin
Temp (C) IniUFin
Sample 1 2 Survival Growth Overall Result
Collection Start Date 12/10/23 12/12/23 12/13/23 Normal 0.86 0.95 ChV > 60
Grab Hom. Var. inf 6.72
Composite (Duration) 24 hr 24 hr 24 hr NOEC 60.0% 60.0%
Hardness (mg/L) 119.1 110.E 119.1 LOEC > 60.0% > 60.0%
Alkalinity (mg/L) 215.3 183.4 183.0 ChV > 60.0% > 60.0%
Conductivity (umhos/cm) 716 563 652 Method Rank Sum t Test
Chlorine(mg/L) 0.08 <0.05
Temp at Receipt (C) z.o 0.2 0.1 Stets Survival Growth
conic. Critical Calculated Critical Calculated
Dilution H2O 4% 10.00 18.00 2.40 -0.82
Hardness (mg/L) 93.5 IWC = 15% 8 % 10.00 20.00 2.40 -0.54
Alkalinity (mg/L) 58.7 15% 10.00 17.50 2.40 -0.57
Conductivity (umhos/cm) 324 30% 10.00 17.50 2.40 -0.17
60 % 10.00 18.00 2.40 -0.85
Grab Hom. Var. inf 6.72
Composite (Duration) 24 hr 24 hr 24 hr NOEC 60.0% 60.0%
Hardness (mg/L) 119.1 110.E 119.1 LOEC > 60.0% > 60.0%
Alkalinity (mg/L) 215.3 183.4 183.0 ChV > 60.0% > 60.0%
Conductivity (umhos/cm) 716 563 652 Method Rank Sum t Test
Chlorine(mg/L) 0.08 <0.05
Temp at Receipt (C) z.o 0.2 0.1 Stets Survival Growth
conic. Critical Calculated Critical Calculated
Dilution H2O 4% 10.00 18.00 2.40 -0.82
Hardness (mg/L) 93.5 IWC = 15% 8 % 10.00 20.00 2.40 -0.54
Alkalinity (mg/L) 58.7 15% 10.00 17.50 2.40 -0.57
Conductivity (umhos/cm) 324 30% 10.00 17.50 2.40 -0.17
60 % 10.00 18.00 2.40 -0.85
25.0
/
25.0
25.1
25.2
/ 25.3
25.6
/ 25.6
DWQ Form AT-5 (1/04)
Page 2 of 7

CHRONIC DEFINITIVE SURVIVAL AND REPRODUCTION/GROWTH TEST
Statistical Analyses
Client: T66348
Sample Identification: Havelock W WTP
Test Date: 12-Dec-2023
ests for Normality and Heterogeneity of Variance (Growth)
arameter Test Used Value Result
ormality (Growth) Shapiro Wilks 0.954 normal
ariance (Growth) Bartletts 6.72 homogeneous
ormality (Survival) Shapiro Wilks 0.855 normal
ariance (Survival) Bartletts inf not homogene
Test Species: Menidia beryllina
Sample Use
Sample Date Sample Used
ample A 10-Dec-23 12-Dec-23 13-Dec-23
ample B 12-Dec-23 14-Dec-23 15-Dec-23
ample C 14-Dec-23 16-Dec-23 17-Dec-23 18-Dec-23
Tests for Differences in Survival and Reproduction
Test Type Used: Linear Interpolation
Test Concentration % effluent
Effect Control
1 3.8
7.5
15.0
30.0
60.0
Survival 97.4%
100.0%
100.0%
97.4%
97.4%
92.3%
% reduction
0.0%
0.0%
1.7%
1.7%
5.9%
Growth (Av. wt) 0.4117
0.4550
0.4404
0.4419
0.4205
0.4570
mg
% reduction (smoothed)
0.0%
0.0%
0.0%
0.0%
0.0%
Variance 0.0152
0.0021
0.0008
0.0044
0.0086
0.0027
A Criteria
Value Upper Limit Lower Limit
CV:Coeff. of Variation
30.0%
42.0%
8.9%
PMSD: % MSD
30.4%
9.4%
35.0%
MSD:Min. Sign. Diff.
0.125
Acceptability criteria limits not exceeded
IC25 Point Estimate
Reproduction IC25=
> 60.0%
TEST RESULTS
%Reduction per Linear
('OCTC of
Interpolation
15.0%
ChV & NOEC Using 25% Limit
NOEC Survival
NOEC Growth
ChV Growth
60.0 %
60.0 %
>60.0 %
Survival effect
Growth effect
1.7%
0.0%
PASS
ChV &
NOEC Usin
ANOVA
Test
Concentration
Comments:
Endpoint
3.8
7.5
15
30
60
critical
I ChV
I NOEC
tTest
Growth
-0.82
-0.54
-0.57
-0.17
-0.85
2.40
60.oi
60.0%
Outcome
Growth
PASS
PASS
PASS
PASS
PASS
Rank Sum
Survival
18.00
20.00
17.50
17.50
18.00
10.00
w.o%
60.0%
Outcome
Survival
PASS
PASS
PASS
PASS
PASS
Page 3 of 7

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Lab#
T66348
Client
Havelock
Sample ID
WWTP
NPDES#
NCO021253
County
Craven
Month
12
Start & fed Date
112-DeC-23
Start & fed Time
04:00 PM
Started & fed By
AM
Test Organism
Menidia beryllina
Neo. born date
04-Dec-23
Neo. born time
1430-1600
Test Type
NCCD
Dilution Water
INSTANT OCEAN
Units for Conc.
%
%3rd BROOD
Test vessels
1000 ml
Test volume
500 ml
Incubator#
1
Light
161t/8dk
Eff. ]nit. Temp °C
25.0
Feeding w/ Artemis
.159 :DAY
Test method
IEPA 821-R-02-013:1000
Comments
All reps have 10
organisms unless noted otherwise.
ini tem
N/A -Lost or not used
Page 4 of 7

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T-,,nvr0twnET6,ne'
P.O. Box 16414, Greenville. SC 29806
[phone] . FAX (8€4)877-6938
4 Craftsman Court, Greer, SIC 29659
Menidia beryllina Survival and Growth Test
EPA-821-R-02-014 Method 1006
Client: Havelock
Facility: WWTP
NPDES #: NCO021253
Test Date: 23-Jan-24
Laboratory Sample ID #: T66729 MENIDIA
Test Reviewed and Approved By:
ROh,-!'t xezze� 6e�', E. AC -A
Robert W. Kelley, Ph.D.
Lab Manager
Certification #E87819
Test results presented in this report conform to all requirements of
NELAC, conducted under NELAC Certification Number E87819
Florida Dept. of Hcalth. Included results pertain only to provided samples.
Amy McMahan
QA/QC Review
SCDHEC Certification #23104
NCDENR Certification # 022
Page 1 of 7

Silverside Chronic Survival and Growth Test - Method 1006
Facility: Havelock WWTP NPDES # NCO021253 Pipe #: 001 County: Craven
Laboratory: Comments
x
Signature of Operator in Responsible Charge /
x dydv)'t
Signature of Laboratory Supervisor u
MAIL ORIGINAL TO: Environmental Sciences Branch
Division of Water Quality
NC DENR
1621 Mail Service Center
Raleigh, NC 27699-1621
Test Initiation Date/Time
01/23/24
/ 04:00 PM
Avg Wt/Surv. Control 0.6465
Test Organisms
Eff.
Repl.
1
2
4
4
Cultured In -House
control
Surviving #
10
10
10
10
% Survival
100.0 %
X
Outside Supplier
Original #
10
10
10
10
0.6760
0.6500
0.7460
0.5140
10
9
9
10
7.5
Surviving#
%Survival
100.0%
Original #
WUoriginal (mg)
Avg Wt (mg)
0.6676
15.0
Surviving #
%Survival
100.0
Original #
WUoriginal (mg)
Avg Wt (mg)
0.7280
30.0
Surviving#
%Survival
100.0%
Original #
WUoriginal (mg)
Avg Wt (mg)
0.6465
60.0
Surviving#
%Survival
100.0%
Original #
WUoriginal (mg)
Avg Wt (mg)
0.6733
Water Quality Data
Day
Control
0
1
2
3
4 5
6
7
pH (SU) IniUFin
DO (mg/L) IniUFin
Temp (C) Init/Fin
High Concentration
0
1
2
3
4 5
6
7
10
10
9
10
10
10
9
10
0.5610
0.5610
0.7433
0.8050
10
10
10
10
10
10
10
10
0.6560
0.7410
0.7650
0.7500
10
10
10
10
10
10
10
10
0.6670
0.6680
0.5790
0.6720
9
10
10
10
9
10
10
10
0.8422
0.7190
0.6020
0.5300
8.3
/ --
8.1 /
7.7
8.3
/ 8.3
8.0
/ 7.9
8.3 /
8.1
8.3 /
8.1
8.2 /
8.0
----/
8.0
6.9
/ --
7.0 /
6.7
7.0
/ 6.6
5.8
/ 5.5
7.0 /
6.0
6.8 /
5.4
7.0 /
7.1
----/
6.9
25.1
/ --
25.5 /
26.2
25.4
/ 26.1
25.3
/ 25.4
25.4 /
25.7
25.1 /
25.8
25.3 /
25.5
--- /
25.4
pH (SU) IniUFin
DO (mg/L) IniUFin
Temp (C) Init/Fin
Sample
1
2
Survival
Growth
Overall Result
Collection Start Date
01/21/24
01/23/24
01/24/24
Normal
0.47
0.95
ChV > 60
Grab
Hom. Var.
inf
10.85
Composite (Duration)
24 hr
24 hr
24 hr
NOEC
60.0%
60.0
Hardness (mg/L)
127.7
126.7
128.9
LOEC
> 60.0% >
60.0%
Alkalinity (mg/L)
167.2
158.8
163.9
ChV
> 60.0% >
60.0
Conductivity (umhos/cm)
660
675
686
Method
Rank Sum
t Test
Chlorine(mg/L)
<0.05
<0.05
Temp at Receipt (C)
1.0
0.4
1.5
Stets
Survival
Growth
C 011C.
Critical
Calculated
Critical
Calculated
Dilution H2O
4%
10.00
16.00
2.40
-0.12
Hardness (mg/L)
87.4
8%
10.00
18.00
2.40
-0.33
Alkalinity (mg/L)
61.8
15%
10.00
18.00
2.40
-1.28
Conductivity (umhos/cm)
322
30%
10.00
18.00
2.40
0.00
60 %
10.00
18.00
2.40
-0.42
8.3
8.2 /
7.7
8.3
/ 8.5
8.1
/ 8.2
8.2
/ 8.3
8.2 /
8.3
8.3 /
8.0
---- /
8.3
7.2
/ --
7.1 /
6.5
7.5
/ 6.6
6.9
/ 6.0
7.1
/ 6.3
6.6 /
5.9
6.2 /
7.3
---- /
6.5
25.0
/ --
25.6 /
26.2
25.6
/ 26.1
25.4
/ 25.4
25.1
/ 25.7
25.4 /
25.8
25.3 /
25.5
---- /
25.4
DWO Form AT-5 (1/04)
Page 2 of 7

CHRONIC DEFINITIVE SURVIVAL AND REPRODUCTION/GROWTH TEST
Statistical Analyses
Client: T66729 MENIDIA
Sample Identification: Havelock WWTP
Test Date: 23-Jan-2024
ests for Normality and Heterogeneity of Variance (Growth)
arameter Test Used Value Result
ormality (Growth) Shapiro Wilks 0.953 normal
ariance (Growth) Bartletts 10.85 homogeneous
ormality (Survival) Shapiro Wilks 0.465 not normal
ariance (Survival) Bartletts inf not homogenc
ests for Differences in Survival and Reproduction
est Type Used: Linear Interpolation
Test Concentration % effluent
Test Species: Menidia beryllina
Sample Use
Sample Date Sample Used
A 22-Jan-24 23-Jan-24 24-Jan-24
B 24-Jan-24 25-Jan-24 26-Jan-24
C 26-Jan-24 27-Jan-24 28-Jan-24 29-Jan-24
Effect Control
1 3.81
7.51
15.01
30.01
60.0
Survival 100.0%
97.4%
100.0%
100.0%
100.0%
100.0%
% reduction
1
0.5%
0.5%
0.5%
0.5%
0.5%
Growth (Av. wt) 0.6465
0.6538
0.6676
0.7280
0.6465
0.6733
mg
% reduction (smoothed)
0.0%
0.0%
0.0%
2.1%
2.1%
Variance 0.0094
0.0004
0.0158
0.0024
0.0020
0.0187
A Criteria Value Upper Limit Lower Limit
V:Coeff. of Variation
15.0%
42.0%
8.9%
MSD: % MSD
23.3%
9.4%
35.0%
1SD:Min. Sign. Diff.
0.150
Acceptability criteria limits not exceeded
�25 Point Estimate
TEST RESULTS
eproduction IC25=
>
60.0%
%Reduction per Linear Interpolation
hV & NOEC Using 25% Limit
CTC of 15.0%
OEC Survival
60.0 %
Survival effect 0.5%
OEC Growth
60.0 %
Growth effect 0.0%
hV Growth
>60.0 /o
PASS
ChV & NOEC Usin
t Test
Outcome
Rank Sum
Outcome
ANOVA
Test Concentration
Comments:
Endpoint
3.8
7.5
15
30
60
critical
I ChV
NOEC
Growth
-0.12
-0.33
-1.28
0.00
-0.42
2.40
>6o.oi
60.0%
Growth
PASS
PASS
PASS
PASS
PASS
Survival
16.00
18.00
18.00
18.00
18.00
10.00
>6oi
60.0%
Survival
PASS
PASS
PASS
PASS
PASS
Page 3 of 7

oria
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9
10
10
10
Lab#
T66729 MENIDIA
Client
Havelock
Sample ID
WWTP
NPDES#
NCO021253
County
Craven
Month
1
Start & fed Date
23-Jan-24
Start & fed Time
04:00 PM
Started & fed By
AM
Test Organism
Menidia beryllina
Neo. born date
13-Jan-24
Neo. born time
1430-1600
Test Type
NCCD
Dilution Water
INSTANT OCEAN
Units for Conc.
%
%3rd BROOD
Test vessels
1000 ml
Test volume
500 ml
Incubator#
1
Light
161tt8dk
Eff. Init. Temp'C
25.0
Feeding w/ Artemia
.159 xDAY
Test method
IEPA 821-R-02-013:1000
Comments
All reps have 10
organisms unless noted otherwise.
control ini to
D=Dead N/A -Lost or not used
Page 4 of 7

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ETanvmmTbinc. (R64) 877-6942 . FAX (864) 977•6939
P.C. Oux 18414. Greenville. SC 29606 d Craftsman Court, Greer, SC 29654
Menidia beryllina Survival and Growth Test
EPA-821-R-02-013 Method 1006
Test Date:
Test Reviewed and Approved By:
Client: Havelock
Facility: WWTP
NPDES #: NCO021253
13-Feb-24
Laboratory Sample ID #: T66874
Robert Xedie y
a," E
Ac~'�
Robert W. Kelley, Ph.D.
Amy McMahan
Lab Manager
QA/QC Review
P
24
I'
Certification #E87819
SCDHEC Certification #23104
Test results presented in this report conform to all requirements of
NELAC, conducted under NELAC Certification Number E87819
Florida Dept. of Health. Included results pertain onlyto provided samples.
NCDENR Certification # 022
Page 1 of 7

Effluent Toxcity Report Form -Chronic Sllverside Multi -Concentration Test
Facility: Havelock NPDES # NCO021253 Pipe #: 001 County: Craven
Laboratory: Comments
x Signature of Operator in Responsible Charge%G/QNf �el l e%
x • ` fJ u
Signature of Laboratory Supervisor
MAIL ORIGINAL TO: Environmental Sciences Branch
Division of Water Quality
NC DENR
1621 Mail Service Center
Raleigh, NC 27699-1621
Test Initiation Date/Time
02/13/24
/ 03:00 PM
Avg Wt/Surv. Control 1.2273
Test Organisms
Eff.
Repl.
1
2
4
4
Cultured In -House
control
Surviving #
10
10
10
10
% Survival
100.0 %
X
Outside Supplier
Original #
10
10
10
10
1.2350
1.1880
1.2820
1.2040
10
10
10
10
7.5
Surviving#
%Survival
100.0%
Original #
WUoriginal (mg)
Avg Wt (mg)
1.0598
15.0
Surviving #
%Survival
100.0
Original #
WUoriginal (mg)
Avg Wt (mg)
0.9840
30.0
Surviving #
%Survival
95.0
Original #
WUoriginal (mg)
Avg Wt (mg)
1.0938
60.0
Surviving #
%Survival
97.5
Original #
WUoriginal (mg)
Avg Wt (mg)
1.0348
Water Quality Data
Day
Control
0
1
2
3
4 5
6
7
pH (SU) IniUFin
DO (mg/L) IniUFin
Temp (C) Init/Fin
High Concentration
0
1
2
3
4 5
6
7
10
10
10
10
10
10
10
10
1.0710
0.8860
1.0940
1.1880
10
10
10
9
10
10
10
9
1.0010
1.0340
1.0500
0.8511
10
9
9
10
10
10
10
10
1.1830
0.8670
1.2110
1.1140
10
10
10
9
10
10
10
10
0.9240
1.0360
1.10 30
1.0760
8.3
/ --
8.2 /
8.2
8.1
/ 7.8
8.3
/ 8.0
8.2 /
8.0
8.3 /
8.2
8.2 /
7.8
----/
8.0
6.6
6.3 /
6.7
6.7
/ 6.6
7.1
/ 5.9
7.0 /
5.3
6.9 /
6.2
7.2 /
6.3
----/
6.6
0.0
24.6 /
25.1
24.6
/ 25.2
24.7
/ 25.0
24.8 /
25.5
24.6 /
25.2
24.6 /
25.3
--- /
25.1
pH (SU) IniUFin
DO (mg/L) IniUFin
Temp (C) Init/Fin
Sample
1
2
Survival
Growth
Overall Result
Collection Start Date
02/11/24
02/13/24
02/15/24
Normal
0.77
0.92
ChV
Grab
Hom. Var.
inf
4.52
Composite (Duration)
24 hr
24 hr
24 hr
NOEC
60.0%
30.0%
Hardness (mg/L)
120.8
112.8
123.9
LOEC
60.0%
60.0% >
Alkalinity (mg/L)
183.7
162.1
153.E
ChV
60.0%
42.5%
Conductivity (umhos/cm)
698
604
710
Method
Rank Sum
t Test
Chlorine(mg/L)
0.05
<0.05
Temp at Receipt (C)
2.1
0.2
0.8
Stets
Survival
Growth
C 011C.
Critical
Calculated
Critical
Calculated
Dilution H2O
4%
10.00
18.00
2.40
2.90
Hardness (mg/L)
7291.7
8%
10.00
18.00
2.40
2.20
Alkalinity (mg/L)
4.9
15%
10.00
18.00
2.40
3.19
Conductivity (umhos/cm)
55400
30%
10.00
14.00
2.40
1.75
60 %
10.00
16.00
2.40
2.52
8.4
8.3
/ 8.4
8.1
/ 8.2
8.4
/ 8.3
8.2
/ 8.2
8.3 /
8.4
8.2 /
7.8
---- /
8.4
7.0
/ --
7.0
/ 6.3
7.0
/ 5.7
7.0
/ 5.8
7.1
/ 5.3
6.9 /
6.1
6.9 /
5.8
---- /
6.3
24.8
/ --
24.9
/ 25.1
24.8
/ 25.2
25.0
/ 25.0
24.8
/ 25.5
24.8 /
25.2
24.9 /
25.3
---- /
25.1
DWO Form AT-5 (1/04)
Page 2 of 7

CHRONIC DEFINITIVE SURVIVAL AND REPRODUCTION/GROWTH TEST
Statistical Analyses
Client: T66874 Test Species: Menidia beryllina
Sample Identification: Havelock WWTP
Test Date: 13-Feb-2024
Tests for Normality and Heterogeneity of Variance (Growth)
Sample Use
Parameter Test Used
Value Result
Sample Date
Sample Used
Normality (Growth) Shapiro Wilks
0.924 normal
Sample A
12-Feb-24
13-Feb-24 14-Feb-24
Variance (Growth) Bartletts
4.52 homogeneous
Sample B
14-Feb-24
15-Feb-24 16-Feb-24
Normality (Survival) Shapiro Wilks
0.771 not normal
Sample C
16-Feb-24
17-Feb-24 18-Feb-24 19-Feb-24
Variance (Survival) Bartletts
inf not homogeneous
ests for Differences in Survival and Reproduction
est Type Used: Linear Interpolation
Test Concentration % effluent
Effect Control
1 3.8
7.5
15.0
30.0
60.0
4urvival 100.0%
100.0%
100.0%
100.0%
95.0%
97.5%
% reduction
0.0%
0.0%
0.0%
3.8%
3.8%
Growth (Av. wt) 1.2273
1.0058
1.0598
0.9840
1.0938
1.0348
mg
% reduction (smoothed)
15.6%
15.6%
15.6%
15.6%
15.7%
Variance 0.0017
0.0131
0.0160
0.0083
0.0245
0.0062
A Criteria Value Upper Limit Lower Limit
V:Coeff. of Variation
3.4%
42.0%
8.9%
VISD: % MSD
14.7%
9.4%
35.0%
SD:Min. Sign. Dif£
0.180
Acceptability criteria limits not exceeded
;'25 Point Estimate
cproduction
IC25= >
60.0%
TEST RESULTS
%Reduction per Linear
CTC of
Interpolation
15.0%
hV & NOEC Using 25%
OEC Survival
OEC Growth
hV Growth
Limit
>60.0
>60.0
>60.0
%
%
/o
Survival effect
Growth effect
0.0%
15.6%
PASS
ChV &
NOEC Usin
ANOVA
Test
Concentration
Comments:
Endpoint
3.8
7.5
15
30
60
critical
I ChV
NOEC
t Test
Growth
2.90
2.20
3.19
1.75
2.52
2.40
42.4%
30.00M
Outcome
Growth
FAIL
PASS
FAIL
PASS
FAIL
Rank Sum
Survival
18.00
18.00
18.00
14.00
16.00
10.00
160%
60.0%
Outcome
Survival
PASS
PASS
PASS
PASS
PASS
Page 3 of 7

oria
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
9
10
10
10
10
10
10
10
10
Lab#
T66874
Client
Havelock
Sample ID
WWTP
NPDES#
NCO021253
County
Craven
Month
2
Start & fed Date
13-Feb-24
Start & fed Time
03:00 PM
Started & fed By
AM
Test organism
Menidiaberllina
Neo. born date
03-Feb-24
Neo. born time
1430-1600
Test Type
NCCD
Dilution Water
Instant Ocean
Units for Conc.
%
Light
16 hr light / 8 hr dark
Test vessels
1000 mL
Test volume
1500 mL
Incubator#
1
Cont.lnit. Temp'C
25.2
Eff. Init. Tom p'C
24.8
Feeding w/ Artemia
DayO-3:0.10g/Day4-6:0.15g
Test method
I EPA 821-R-02-014:1006
Comments
All reps have 10
organisms unless noted otherwise.
D=Dead N/A -Lost or not used
Page 4 of 7

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ETanvmmTbinc. (R64) 877-6942 . FAX (864) 977•6939
P.C. Bux 18414. Greenville. SC 29606 d Craftsman Court, Greer, SC 29654
Menidia beryllina Survival and Growth Test
EPA-821-R-02-013 Method 1006
Test Date:
Test Reviewed and Approved By:
df obel^t xdlc y.
Robert W. Kelley, Ph.D.
Lab Manager
Certification #E87819
Test results presented in this report conform to all requirements of
NELAC, conducted under NELAC Certification Number E87819
Florida Dept. of Health. Included results pertain only to provided samples.
Client: HAVELOCK
Facility: WWTP EFFLUENT
NPDES #: NCO021253
12-Mar-24
Laboratory Sample ID #: T67082
Amy McMahan
QA/QC Review
. �.
SCDHEC
NCDENR
Certification #23104
Certification # 022
Page 1 of 7

Effluent Toxcity Report Form -Chronic Sllverside Multi -Concentration Test
Facility: HAVELOCK NPDES # NCO021253 Pipe #: 001 County: Craven
Laboratory: Comments
x
Signature of Operator in Responsible Charge x jJ J G0 ert
6 cl� l6
Signature of Laboratory Supervisor
MAIL ORIGINAL TO: Environmental Sciences Branch
Division of Water Quality
NC DENR
1621 Mail Service Center
Raleigh, NC 27699-1621
Test Initiation Date/Time
03/12/24
/ 02:50 PM
Avg Wt/Surv. Control 0.9199
Test Organisms
Eff.
Repl.
1
2
4
4
Cultured In -House
control
Surviving #
9
10
10
10
% Survival
97.5 %
X
Outside Supplier
Original #
10
10
10
10
0.7260
0.8990
0.8840
1.0900
10
10
10
10
7.5
Surviving#
%Survival
100.0%
Original #
WUoriginal (mg)
Avg Wt (mg)
0.7277
15.0
Surviving #
%Survival
100.0
Original #
WUoriginal (mg)
Avg Wt (mg)
0.7553
30.0
Surviving#
%Survival
100.0%
Original #
WUoriginal (mg)
Avg Wt (mg)
0.7873
60.0
Surviving#
%Survival
100.0%
Original #
WUoriginal (mg)
Avg Wt (mg)
0.7817
Water Quality Data
Day
Control
0
1
2
3
4 5
6
7
pH (SU) IniUFin
DO (mg/L) IniUFin
Temp (C) Init/Fin
High Concentration
0
1
2
3
4 5
6
7
10
10
10
10
10
10
10
10
0.6580
0.8420
0.6990
0.7120
10
10
10
10
10
10
10
10
0.7190
0.6800
0.8270
0.7950
10
10
10
10
10
10
10
10
0.8650
0.7690
0.6640
0.8510
10
10
10
10
10
10
10
10
0.7160
0.8060
0.7130
0.8920
8.1
/ --
8.3 /
8.3
8.1
/ 8.1
8.2
/ 8.3
8.1 /
8.0
8.2 /
8.0
8.1 /
7.8
----/
7.8
6.8
6.8 /
6.6
6.9
/ 6.0
6.9
/ 6.2
6.9 /
6.3
7.0 /
8.1
7.0 /
6.4
----/
6.0
0.0
/ -
24.6 /
25.1
24.7
/ 25.2
24.6
/ 24.8
24.5 /
25.2
24.7 /
25.5
24.5 /
25.1
--- /
25.3
pH (SU) IniUFin
DO (mg/L) IniUFin
Temp (C) Init/Fin
Sample
1
2
Survival
Growth
Overall Result
Collection Start Date
03/10/24
03/12/24
03/14/24
Normal
0.47
0.97
ChV > 60
Grab
Hom. Var.
inf
2.57
Composite (Duration)
24 hr
24 hr
24 hr
NOEC
60.0%
60.0
Hardness (mg/L)
107.7
118.0
115.7
LOEC
> 60.0% >
60.0%
Alkalinity (mg/L)
172.4
181.5
189.1
ChV
> 60.0% >
60.0
Conductivity (umhos/cm)
522
562
586
Method
Rank Sum
t Test
Chlorine(mg/L)
<0.05
<0.05
Temp at Receipt (C)
o.a
0.5
0.1
Stets
Survival
Growth
C 011C.
Critical
Calculated
Critical
Calculated
Dilution H2O
4%
10.00
26.00
2.40
1.09
Hardness (mg/L)
80.8
8%
10.00
20.00
2.40
2.31
Alkalinity (mg/L)
57.5
15%
10.00
20.00
2.40
1.94
Conductivity (umhos/cm)
318
30%
10.00
20.00
2.40
1.51
60 %
10.00
20.00
2.40
1.59
8.2
8.4
/ 8.4
8.2
/ 8.1
8.3
/ 8.4
8.0 /
8.1
7.9 /
8.2
0.0 /
7.8
---- /
8.0
7.4
/ --
6.8
/ 6.6
6.8
/ 5.8
6.0
/ 5.9
6.6 /
5.8
6.3 /
5.7
6.5 /
5.7
---- /
5.7
25.1
/ --
25.1
/ 25.1
25.2
/ 25.2
24.8
/ 24.8
24.9 /
25.2
24.9 /
25.5
24.8 /
25.1
---- /
25.3
DWO Form AT-5 (1/04)
Page 2 of 7

CHRONIC DEFINITIVE SURVIVAL AND REPRODUCTION/GROWTH TEST
Statistical Analyses
Client: T67082
Sample Identification: HAVELOCK
Test Date: 12-Mar-2024
Tests for Normality and Heterogeneity of Variance (Growth)
Test Species: Menidia beryllina
WWTP EFFLUENT
Parameter
Test Used
Value Result
Normality (Growth)
Shapiro Wilks
0.974 normal
Variance (Growth)
Bartletts
2.57 homogeneous
Normality (Survival)
Shapiro Wilks
0.465 not normal
Variance (Survival)
Bartletts
inf not homogene
ests for Differences in Survival and Reproduction
est Type Used: Linear Interpolation
Sample Use
Sample Date Sample Used
A 11-Mar-24 12-Mar-24 13-Mar-24
B 13-Mar-24 14-Mar-24 15-Mar-24
C 15-Mar-24 16-Mar-24 17-Mar-24 18-Mar-24
Test Concentration % effluent
Effect Control
1 3.8
7.5
15.0
30.0
60.0
4urvival 97.5%
100.0%
100.0%
100.0%
100.0%
100.0%
% reduction
0.0%
0.0%
0.0%
0.0%
0.0%
Growth (Av. wt) 0.8997
0.8185
0.7277
0.7553
0.7873
0.7817
mg
% reduction (smoothed)
9.0%
15.2%
15.2%
15.2%
15.2%
Variance 0.0222
0.0174
0.0063
0.0046
0.0085
0.0073
A Criteria Value Upper Limit Lower Limit
V:Coeff. of Variation 16.6% 42.0% 8.9%
VISD: % MSD 19.5% 9.4% 35.0%
SD:Min. Sign. Dif£ 0.175 Acceptability criteria limits not exceeded
;'25 Point Estimate TEST RESULTS
cproduction IC25= > 60.0% %Reduction per Linear Interpolation
hV & NOEC Using 25% Limit CTC of 15.0%
OEC Survival 60.0 % Survival effect 0.0%
OEC Growth 60.0 % Growth effect 4.5%
hV Growth >60.0 /o PASS
ChV &
NOEC Usin
ANOVA
Test
Concentration
Comments:
Endpoint
3.8
7.5
15
30
60
critical
I ChV
NOEC
tTest
Growth
1.09
2.31
1.94
1.51
1.59
2.40
6o.oi
60.0%
Outcome
Growth
PASS
PASS
PASS
PASS
PASS
Rank Sum
Survival
26.00
20.00
20.00
20.00
20.00
10.00
>6o%
60.0%
Outcome
Survival
PASS
PASS
PASS
PASS
PASS
Page 3 of 7

oria
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
Lab#
T67082
Client
HAVELOCK
Sample ID
W WTP EFFLUENT
NPDES#
NCO021253
County
lCraven
Month
3
Start & fed Date
12-Mar-24
Start & fed Time
02:50 PM
Started & fed By
AM
Test organism
Menidiaberllina
Neo. born date
02-Mar-24
Neo. born time
1430-1600
Test Type
SCCD
Dilution Water
Instant Ocean
Units for Conc.
%
Light
16 hr light / 8 hr dark
Test vessels
1000 mL
Test volume
500 mL
Incubator#
1
Cont.Init. Temp'C
24.8
Eff. Init. Temp'C
25.1
Feeding w/ Artemia
DayO-3:0.10g/Day4-6:0.15g
Test method
I EPA 821-R-02-014:1006
Comments
All reps have 10
organisms unless noted otherwise.
D=Dead N/A -Lost or not used
Page 4 of 7

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Standard Secchi depth
Lab Certification 4 5028 City of Havelock Month M�: li,,� Year
Secchl".Disk Depth �_
Date
Upstream reading
to nearest .5 feet
Difusser reading to
the nearest feet
Downsteam reading
/
.5
to nearest .5 feet
C
f �
1

Standard Secchi depth City of Havelock Month _July Year_2019
Lab Certification # 5028 Secchi Disk Depth
Upstream reading Difusser reading to Downsteam reading
Date to nearest .5 feet the nearest .5 feet to nearest .5 feet
7.2.19 3 3.5 3
7.9.19 2.5 3
3
7.16.19 2.5 3 3
7.23.19 2.5 3 3

Standard Secchi depth
Lab Certification # 5�028 City of Havelock Month
C L • r. .
Year

Standard Secchi depth City of HaveloMonth September Year
Lab Certification # 5028 2019
Secchi Disk Depth —
Upstream reading Difusser reading to Downsteam reading
Date to nearest .5 feet the nearest .5 feet to nearest .5 feet
9/3/2019 2.5 2.5 2.5
9/10/2019 2 2.5 2.5
9/17/2019 2.5 2.5 2.5
9/24/2019 2 2 2.5

Standard Secchi depth City of Havelock Month June_ Year 2020
Lab Certification # 5028 Secchi Disk Depth
Upstream reading Difusser reading to Downsteam reading
Date to nearest .5 feet the nearest .5 feet to nearest .5 feet
,/8_Zo E

Standard Secchi depth
Lab Certification # '5028 CitY of Havelock � ,y
Months xi K ,
Secchi Disk Depth �
Date
Upstream reading Difusser reading to Downsteam reading
to nearest .5 feet
the nearest .5 feet to nearest .5 feet
7 /i ,�.

Standard Secchi depth City of Havelock
Lab Certification # 5028 Month / 5�: if"'Year
Secchi Disk Depth
Upstream reading Difusser reading to Downsteam reading
Date to nearest .5 feet the nearest .5 feet to nearest .5 feet
st

Standard Secchi depth City of Havelock Month
Lab Certification # 5028 Secchi nick nanth
S��' Year -�,(),J&
-._..--r,...
Upstream reading Difusser reading to Downsteam reading
Date to nearest .5 feet the nearest .5 feet to nearest .5 feet
9/2/2020 3 2.5 2
9/24/2020 2.5 2 2.5

Standard Secchi depth
Lab Certification # 5028
City of Havelock Month
Secchi Disk Depth
d Year
Date
19-Sep
Upstream reading
to nearest .5 feet
2.5
Difusser reading to
the nearest .5 feet
3
Downsteam reading
to nearest .5 feet
2
9/28/2021
2.5
2
2

Standard Secchi depth City of Havelock Month _ iune Year 2022
Lab Certification # 50.28 Secchi Disk Death
Date
2-Jun
Upstream reading
to nearest .5 feet
2.5
Difusser reading to
the nearest .5 feet
2.5
Downsteam reading
to nearest .5 feet
2
6/16/2022
2.5
3
2.5

Standard Secchi depth City of Havelock
Lab Certification # 5028 Month
Secchi Disk Depth
Upstream reading Difusser reading to Downsteam reading
Date to nearest .5 feet the nearest .5 feet to nearest .5 feet
7-Jul 2.5 3 3
7/21/2022 3 3.5 3
r'
YearJ-O- -. 2,
i

Standard Secchi depth City of Havelock Month August Year 2022
Lab Certification # 5028 Secchi Disk nanth
Date
4-Aug
Upstream reading
to nearest .5 feet
2.5
Difusser reading to
the nearest .5 feet
3.5
:Downsteam reading
arest .5 feet
3.5
11-Aug
2.5
3
3
18-Aug
2.5
3
3

Standard Secchi depth City of Havelock Month
Lab Certification # 5028 Secchi nick nanth
Year oa
-.-•- ---r '..
Upstream reading Difusser reading to Downsteam reading
Date to nearest .5 feet the nearest .5 feet to nearest .5 feet
8-Sep 2.5 2.5' 3
22-Sep 2 2 3

Standard Secchi depth City of Havelock
Month June Year2023
Lab Certification # 5028
Secchi Disk Depth
Date
1-Jun
Upstream reading
to nearest .5 feet
1.5
Difusser reading to
the nearest .5 feet
1.5
Downsteam reading
to nearest .5 feet
1.5
15-Jun
3
2
3

Standard Secchi depth City of Havelock
Lab Certification # 5028 Month July Year 2023
Secchi Disk Depth
Date
6-Jul
Upstream reading
to nearest .5 feet
7
Difusser reading to
the nearest .5 feet
7.5
Downsteam reading
to nearest .5 feet
5
19-Jul
g
9
8

Standard Secchi depth
Lab Certification # 5028 Month
Secchi Disk Depth
Upstream reading Difusser reading to Downsteam reading
Date to nearest .5 feet the nearest .5 feet to nearest .5 feet
3-Aug 3
2.5 2.5
8/17/2023 6 7 8
City of Havelock
1 Yea �

Standard Secchi depth City of Havelock
Month SEP Year 2023
Lab Certification # 5028
Secchi Disk DPnth
Upstream reading Difusser reading to Downsteam reading
Date to nearest .5 feet the nearest .5 feet to nearest .5 feet
7-Sep 6 6 7
21-Sep 7 7 6

NORTH CAROLINA 2022 INTEGRATED REPORT
Lower Neuse Neuse River Basin
AU Name AU Number Classification AU LengthArea AU Units
AU ID Description
NEUSE RIVER Estuary 27-(104)b 1SB;Sw,NSW 10,759.1 S Acres
E77434 From a line across Neuse River from 1.2 miles upstream of Slocum Creek to 0.5 miles upstream of Beard
Creek to a line across Neuse River from Wilkinson Point to Cherry Point (bend model segment)
F_
2022 Water Quality Assessments
PARAMETER
Chlorophyll a (40 µg/I, AL, NC)
Enterrococcus (GM 35 5 in 30, REC, SW)
Total Nitrogen
IR CATEGORY CRITERIA STATUS
4i Exceeding Criteria
1 Meeting Criteria
4t Exceeding Criteria
NEUSE RIVER Estuary 27-(118)a1a SA;HQW,NSW 4,914.1 S Acres
14049 From a line across Neuse River from Wilkinson Point to Cherry Point to a line across the river From
Adams Creek to Wiggins Point (part of lower model segment)
2022 Water Quality Assessments
PARAMETER IR CATEGORY CRITERIA STATUS
Shellfish Growing Area Status (Fecal, SH, SA) 1 Meeting Criteria
Copper (3 µg/I, AL, SW) 5 Exceeding Criteria
Chlorophyll a (40 µg/I, AL, NC) 4i Exceeding Criteria
Total Nitrogen 4t Exceeding Criteria
NEUSE RIVER Estuary at Camp Don Lee
12965 Swim beach at Camp Don Lee
2022 Water Quality Assessments
PARAMETER
Shellfish Growing Area Status (Fecal, SH, SA)
Enterrococcus (GM 35 5 in 30, REC, SW)
Chlorophyll a (40 µg/I, AL, NC)
Total Nitrogen
27-(118)a1a SA;HQW,NSW
IR CATEGORY
5
5
1.0 S Acres
CRITERIA STATUS
Exceeding Criteria
Exceeding Criteria
4i Exceeding Criteria
4t Exceeding Criteria
6/7/2022 NC 2022 INTEGRATED REPORT -Category 5 Approved by EPA 4/30/2022 Page 711 of 1346

MONITORING REPORT(MR) VIOLATIONS for:
Permit: NCO021253 MRS Betweei 6 - 2019 and 6 - 2024 Region: %
Facility Name: % Param Nam(% County: %
Major Minor: %
Report Date: 06/25/24 Page 1 of 3
Violation Category:Limit Violation Program Category: NPDES WW
Subbasin: % Violation Action:
PERMIT: NCO021253
FACILITY: City of Havelock - Havelock WWTP
COUNTY: Craven
REGION: Washington
Limit Violation
MONITORING
VIOLATION
UNIT OF
CALCULATED
%
REPORT
OUTFALL
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
04 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
04/11/20
5 X week
mg/I
7.5
12.3
64
Weekly Average
Proceed to NOD
Concentration
Exceeded
04 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
04/30/20
5 X week
mg/I
5
6.07
21.3
Monthly Average
Proceed to NOD
Concentration
Exceeded
05 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
05/02/20
5 X week
mg/I
7.5
8.42
12.3
Weekly Average
Proceed to NOV
Concentration
Exceeded
05 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
05/09/20
5 X week
mg/I
7.5
10.9
45.3
Weekly Average
Proceed to NOV
Concentration
Exceeded
05 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
05/16/20
5 X week
mg/I
7.5
12.34
64.5
Weekly Average
Proceed to NOV
Concentration
Exceeded
05 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
05/31/20
5 X week
mg/I
5
6.44
28.9
Monthly Average
Proceed to NOV
Concentration
Exceeded
06 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
06/13/20
5 X week
mg/I
7.5
8.52
13.6
Weekly Average
Proceed to NOV
Concentration
Exceeded
07 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
07/18/20
5 X week
mg/I
7.5
12.7
69.3
Weekly Average
Proceed to NOV
Concentration
Exceeded
07 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
07/25/20
5 X week
mg/I
7.5
7.56
0.8
Weekly Average
Proceed to NOV
Concentration
Exceeded
07 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
07/31 /20
5 X week
mg/I
5
6.7
34
Monthly Average
Proceed to NOV
Concentration
Exceeded
08 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
08/01/20
5 X week
mg/I
7.5
8.58
14.4
Weekly Average
Proceed to NOV
Concentration
Exceeded
08 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
08/29/20
5 X week
mg/I
7.5
15.32
104.3
Weekly Average
Proceed to NOV
Concentration
Exceeded
08 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
08/31 /20
5 X week
mg/I
5
6.11
22.2
Monthly Average
Proceed to NOV
Concentration
Exceeded
09 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
09/26/20
5 X week
mg/I
7.5
7.72
2.9
Weekly Average
No Action, BPJ
Concentration
Exceeded
09 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
09/30/20
5 X week
mg/I
5
5.38
7.5
Monthly Average
No Action, BPJ
Concentration
Exceeded

MONITORING REPORT(MR) VIOLATIONS for:
Permit: NCO021253 MRS Betweel 6 - 2019 and 6 - 2024 Region: %
Facility Name: % Param Nam(% County: %
Major Minor: %
Report Date: 06/25/24 Page 2 of 3
Violation Category:Limit Violation Program Category: NPDES WW
Subbasin: % Violation Action: %
PERMIT: NCO021253
FACILITY: City of Havelock - Havelock WWTP
COUNTY: Craven
REGION: Washington
Limit Violation
MONITORING
VIOLATION
UNIT OF
CALCULATED
%
REPORT
OUTFALL
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
10 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
10/10/20
5 X week
mg/I
7.5
21.34
184.5
Weekly Average
Proceed to NOV
Concentration
Exceeded
10 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
10/17/20
5 X week
mg/I
7.5
10.3
37.3
Weekly Average
Proceed to NOV
Concentration
Exceeded
10 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
10/24/20
5 X week
mg/I
7.5
7.6
1.3
Weekly Average
No Action, BPJ
Concentration
Exceeded
10 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
10/31 /20
5 X week
mg/I
5
9.3
86.1
Monthly Average
Proceed to NOV
Concentration
Exceeded
11 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
11 /07/20
5 X week
mg/I
15
32.74
118.3
Weekly Average
Proceed to NOV
Concentration
Exceeded
11 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
11 /14/20
5 X week
mg/I
15
23.35
55.7
Weekly Average
Proceed to NOV
Concentration
Exceeded
11 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
11 /30/20
5 X week
mg/I
10
16.38
63.8
Monthly Average
Proceed to NOV
Concentration
Exceeded
12 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
12/19/20
5 X week
mg/I
15
35.2
134.7
Weekly Average
Proceed to NOV
Concentration
Exceeded
12 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
12/26/20
5 X week
mg/I
15
24.6
64
Weekly Average
Proceed to NOV
Concentration
Exceeded
12 - 2020
002
Effluent
BOD, 5-Day (20 Deg. C) -
12/31 /20
5 X week
mg/I
10
16.22
62.2
Monthly Average
Proceed to NOV
Concentration
Exceeded
06 - 2021
002
Effluent
BOD, 5-Day (20 Deg. C) -
06/26/21
5 X week
mg/I
7.5
7.76
3.5
Weekly Average
No Action, BPJ
Concentration
Exceeded
03 - 2024
002
Effluent
BOD, 5-Day (20 Deg. C) -
03/02/24
5 X week
mg/I
15
29.4
96
Weekly Average
Proceed to NOV
Concentration
Exceeded
03 - 2024
002
Effluent
BOD, 5-Day (20 Deg. C) -
03/16/24
5 X week
mg/I
15
26.2
74.7
Weekly Average
Proceed to NOV
Concentration
Exceeded
03 - 2024
002
Effluent
BOD, 5-Day (20 Deg. C) -
03/23/24
5 X week
mg/I
15
17.22
14.8
Weekly Average
Proceed to NOV
Concentration
Exceeded
03 - 2024
002
Effluent
BOD, 5-Day (20 Deg. C) -
03/30/24
5 X week
mg/I
15
26.5
76.7
Weekly Average
Proceed to NOV
Concentration
Exceeded
03 - 2024
002
Effluent
BOD, 5-Day (20 Deg. C) -
03/31 /24
5 X week
mg/I
10
17.88
78.8
Monthly Average
Proceed to NOV
Concentration
Exceeded

MONITORING REPORT(MR) VIOLATIONS for:
Permit: NCO021253 MRS Betweel 6 - 2019 and 6 - 2024 Region: %
Facility Name: % Param Nam(% County: %
Major Minor: %
Report Date: 06/25/24 Page 3 of 3
Violation Category:Limit Violation Program Category: NPDES WW
Subbasin:% Violation Action: % 14
PERMIT: NCO021253 FACILITY: City of Havelock - Havelock WWTP COUNTY: Craven REGION: Washington
Limit Violation
MONITORING VIOLATION UNIT OF CALCULATED %
REPORT OUTFALL LOCATION PARAMETER DATE FREQUENCY MEASURE LIMIT VALUE Over VIOLATION TYPE VIOLATION ACTION
04 -2024 002 Effluent BOD, 5-Day (20 Deg. C) - 04/06/24 5 X week
mg/I
Concentration
04 - 2024 002 Effluent BOD, 5-Day (20 Deg. C) - 04/30/24 5 X week
mg/I
Concentration
10-2020 002 Effluent Oxygen, Dissolved (DO) 10/07/20 5Xweek
mg/I
7.5 28.2 276 Weekly Average Proceed to NOV
Exceeded
5 8.53 70.5 Monthly Average Proceed to NOV
Exceeded
5 4.67 6.6 Daily Minimum Not No Action, BPJ
Reached

Whole Effluent Toxicity Testing and Self Monitoring Summary
Havelock WWTP
NCO021253/001
County: Craven
Mysd7dPF
Begin:
6/1/2014
Mysid or Cerio Lim@
NonComp: Single
J
F M
A
M
2020
Pass
- -
Pass
-
2021
Pass
- -
Pass
-
2022
Pass
- -
Pass
-
2023
Pass
- -
Pass
-
2024
Pass
- -
Pass
-
Henderson Nutbush Cr
WWTP
NCO020559/001
County: Vance
Ceri7dPF
Begin:
8/1/2019
chr lim: 90%
NonComp: Single
J
F M
A
M
2020
Pass
- -
Pass>100(P)
-
2021
Fail
>100 63.6
Pass
-
2022 Pass >100(P)
- -
Pass
-
2023
Pass
- -
Pass
-
2024
Pass
- -
Pass
-
Hendersonville WTP
NCO042277/001
County: Henderson
Ceri7dPF
Begin:
6/1/2021
Chr Monit: 90%
NonComp:
J
F M
A
M
2020
-
Pass -
-
Pass
2021
-
Pass -
-
Pass
2022
-
Fail -
-
Pass
2023
-
Pass -
-
Pass
2024
-
Pass -
-
Pass
Hendersonville WWTP
NCO025534/001
County: Henderson
Ceri7dPF
Begin:
1/1/2018
chr lim 18% @ 4.8M
NonComp: Single
J
F M
A
M
2020
-
Pass -
-
Pass
2021
-
Pass -
-
Pass
2022
-
Pass -
-
Pass
2023
-
Pass -
-
Pass
2024
-
Pass -
-
Pass
Hickory WTP (NCG590036)
NCO044121/001
County: Catawba
Ceri7dPF
Begin:
8/1/2021
ANNUAL (NCG59003
NonComp:
J
F M
A
M
2020
Pass
- -
Pass
-
2021
Pass
- -
Pass
-
2022
Pass
- -
-
-
2023
Pass
- -
-
-
Region: WARO Basin: NEU10 Jan Apr Jul Oct SOC JOC:
7Q10: 0 PF: 2.25 IWC: 100 Freq: Q
J J A S O N
Pass - - Pass
Pass - - Pass
Pass - - Pass
Pass - - Pass
Region:
RRO
Basin:
ROA06
Jan Apr Jul Oct
7Q10:
0.20
PF: 4.14
IWC: 97
Freq: Q
J
J
A
S
O
-
Pass
-
-
Pass
-
Pass >100(P)
-
-
Pass
-
Pass
-
-
Fail
-
Pass
-
-
Pass
Region:
ARO
Basin:
FRB03
Feb May Aug Nov
7Q10:
PF:
IWC:
Freq: Q
I
J
A
S
O
Pass
-
Pass
Pass
Pass
Region:
ARO
Basin:
FRB02
Feb May Aug Nov
7Q10:
17
PF: 4.8
IWC: 22
Freq: Q
J
J
A
S
O
Pass
-
Pass
Pass
-
-
-
-
Pass
>72 (P)
25.5 (I
Region:
MRO
Basin:
CTB32
Mar Jun Sep Dec
7Q10:
PF:
IWC:
Freq: A
J
J
A
S
O
-
Pass
-
-
Pass
Pass
C
SOC JOC:
N D
>100 >100
SOC JOC:
N D
Pass
Pass
Fail
Pass
SOC JOC:
N D
Pass
Pass
Pass -
>72 (P) Pass >72 (P)
SOC JOC:
N D
Leeend: P= Fathead minnow (Pimohales oromelas). H=No Flow (facilitv is active). s = Solit test between Certified Labs Page 47 of 113

United States Environmental Protection Agency
Form Approved.
EPA Washington, D.C. 20460
OMB No. 2040-0057
Water Compliance Inspection Report
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 IN 1 2 u 3 I NCO021253 111 121 24/03/05 I17 18 LC] I 19 I s I 20L]
21111I I I I I I I II I I I I I I I I I I I I I I I I I I I I I I I II I I I I I r6
Inspection
Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---------------------- Reserved -------------------
67
I 72 I n, I 71 I 74 79 I I I I I I I80
701� I 711 L
LJ L -1 I I
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
Entry Time/Date
Permit Effective Date
POTW name and NPDES permit Number)
09:45AM 24/03/05
20/05/01
Havelock WWTP
304 N Jackson Dr
Exit Time/Date
Permit Expiration Date
Havelock NC 28532
01:15PM 24/03/05
24/06/30
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
Rodney George/ORC/252-444-6421/
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Jim Freeman,PO Box 368 Havelock NC 285320368/lnterm City
Manager/252-444-6401/2524470126 No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit 0 Flow Measurement Operations & Maintenar Records/Reports
Self -Monitoring Progran 0 Sludge Handling Dispo: Facility Site Review Laboratory
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date
Robert E Bullock DWR/WARO WQ/252-948-3843/
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page#

NPDES yr/mo/day Inspection Type
NCO021253 I11 12I 24/03/05 117 18 i c i
(Cont.)
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
On the day of inspection there was some sludge on the ground throughout the plant and in the area
adjacent to the WWTP leading to the East Prong of Slocum creek. These solids came from a bypass
that occurred on March 2, 2024. During the inspection on March 5, 2024 plant personnel was
cleaning up the sludge inside the fence but no effort had been made by the City to clean up the
solids leading to the East Prong of Slocum creek.
Influent sampler is on constant time and constant volume with a sample taken every 20 minutes. On
the day of inspection sampler temperature was 6.5 degrees C. The facility was reminded that sampler
temperature must be below 6 degrees C.
The bar screen and grit chamber are currently bypassed due to influent manhole replacement which
is projected to be completed by March 8, 2024. The bar screen and grit chamber will be placed back
online once construction is completed.
MLSS in the aeration basin is around 6,500 mg/I with the sludge blankets in both Clarifiers around 6'.
MLSS concentrations appear to be elevated in the system and the MLSS levels need to be at a more
manageable level to prevent washout during high flow events.
Lewis Farms land applies the sludge for the Havelock WWTP. Lewis Farms applied 205.52 dry metric
tons of sludge for the City of Havelock during 2023.
The facility was judged to be Non -Compliant.
Page#

Permit: NCO021253 Owner -Facility: Havelock WWTP
Inspection Date: 03/05/2024 Inspection Type: Compliance Evaluation
Record Keeping
Yes
No
NA
NE
Are records kept and maintained as required by the permit?
■
❑
❑
❑
(If the present permit expires in 6 months or less). Has the permittee submitted a new
■
❑
❑
❑
application?
Is all required information readily available, complete and current?
■
❑
❑
❑
Is the facility as described in the permit?
■
❑
❑
❑
Are all records maintained for 3 years (lab. reg. required 5 years)?
■
❑
❑
❑
# Are there any special conditions for the permit?
■
❑
❑
❑
Are analytical results consistent with data reported on DMRs?
■
❑
❑
❑
Is access to the plant site restricted to the general public?
■
❑
❑
❑
Is the chain -of -custody complete?
■
❑
❑
❑
Is the inspector granted access to all areas for inspection?
■
❑
❑
❑
Dates, times and location of sampling
❑
Comment: The current permit is effective until June 30, 2024.
Name of individual performing the sampling
❑
Results of analysis and calibration
❑
Dates of analysis
❑
Name of person performing analyses
❑
Transported COCs
❑
Are DMRs complete: do they include all permit parameters?
■
❑
❑
❑
Has the facility submitted its annual compliance report to users and DWQ?
■
❑
❑
❑
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified
❑
❑
■
❑
operator on each shift?
Is the ORC visitation log available and current?
■
❑
❑
❑
Is the ORC certified at grade equal to or higher than the facility classification?
■
❑
❑
❑
Is the backup operator certified at one grade less or greater than the facility
■
❑
❑
❑
classification?
Is a copy of the current NPDES permit available on site?
■
❑
❑
❑
Facility has copy of previous year's Annual Report on file for review?
■
❑
❑
❑
Comment: The October 2023 DMR was spot checked for accuracy with no discrepancies found.
Rodney George is the ORC with Jeffrey Jarman as the Backup ORC.
Laboratory Yes No NA NE
Are field parameters performed by certified personnel or laboratory? ■ ❑ ❑ ❑
Page# 3

Permit: NCO021253 Owner -Facility: Havelock WWTP
Inspection Date: 03/05/2024 Inspection Type: Compliance Evaluation
Laboratory
Yes
No
NA
NE
Are all other parameters(excluding field parameters) performed by a certified lab?
0
❑
❑
❑
# Is the facility using a contract lab?
0
❑
❑
❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0
❑
■
❑
❑
degrees Celsius)?
Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees?
❑
❑
0
❑
Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees?
❑
❑
0
❑
Comment: Ph, Dissolved Oxygen and Temperature is analyzed in house with all other samples
sent to Waypoint Analytical for analysis.
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? ❑ 0 ❑ ❑
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable ❑ ❑ ❑
Solids, pH, DO, Sludge Judge, and other that are applicable?
Comment: On the day of inspection there was some sludqe on the qround throuqhout the plant
and in the area adjacent to the WWTP leading to the East Prong of Slocum creek.
These solids came from a bypass that occurred on March 2, 2024. During the
inspection on March 5, 2024 plant personnel was cleaning up the sludge inside the
fence but no effort had been made by the City to clean up the solids leading to the
East Prong of Slocum creek.
Bar Screens
Type of bar screen
a.Manual
b.Mechanical
Are the bars adequately screening debris?
Is the screen free of excessive debris?
Is disposal of screening in compliance?
Is the unit in good condition?
Yes No NA NE
❑ ❑ ■ ❑
❑ ❑ ■ ❑
❑ ❑ ■ ❑
❑ ❑ ■ ❑
Comment: The bar screen is currently bypassed due to influent manhole replacement.
Construction of the new manhole is proposed to be completed by March 8, 2024 and
the bar screen will be placed back online once construction is completed.
Lagoons Yes No NA NE
Type of lagoons?
# Number of lagoons in operation at time of visit?
Are lagoons operated in?
# Is a re -circulation line present? ❑ ❑ ❑ ❑
Page# 4

Permit: NCO021253 Owner - Facility: Havelock WWTP
Inspection Date: 03/05/2024 Inspection Type: Compliance Evaluation
Lagoons
Yes
No
NA
NE
Is lagoon free of excessive floating materials?
❑
❑
❑
❑
# Are baffles between ponds or effluent baffles adjustable?
❑
❑
❑
❑
Are dike slopes clear of woody vegetation?
❑
❑
❑
❑
Are weeds controlled around the edge of the lagoon?
❑
❑
❑
❑
Are dikes free of seepage?
❑
❑
❑
❑
Are dikes free of erosion?
❑
❑
❑
❑
Are dikes free of burrowing animals?
❑
❑
❑
❑
# Has the sludge blanket in the lagoon (s) been measured periodically in multiple
❑
❑
❑
❑
locations?
# If excessive algae is present, has barley straw been used to help control the growth?
❑
❑
❑
❑
Is the lagoon surface free of weeds?
❑
❑
❑
❑
Is the lagoon free of short circuiting?
❑
❑
❑
❑
Comment:
Influent Sampling
Yes
No
NA
NE
# Is composite sampling flow proportional?
❑
0
❑
❑
Is sample collected above side streams?
■
❑
❑
❑
Is proper volume collected?
0
❑
❑
❑
Is the tubing clean?
0
❑
❑
❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0
❑
■
❑
❑
degrees Celsius)?
Is sampling performed according to the permit?
❑
❑
❑
Comment: Influent sampler is on constant time and constant volume with a sample taken every 20
minutes. On the day of inspection the sampler temperature was 6.5 degrees C. The
facilitv was reminded that samDler temperature must be below 6 dearees C.
Effluent Sampling
Yes
No
NA
NE
Is composite sampling flow proportional?
❑
0
❑
❑
Is sample collected below all treatment units?
0
❑
❑
❑
Is proper volume collected?
0
❑
❑
❑
Is the tubing clean?
0
❑
❑
❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0
0
❑
❑
❑
degrees Celsius)?
Is the facility sampling performed as required by the permit (frequency, sampling type
0
❑
❑
❑
representative)?
Page# 5

Permit: NCO021253
Inspection Date: 03/05/2024
Effluent Sampling
Owner -Facility: Havelock WWTP
Inspection Type: Compliance Evaluation
Yes No NA NE
Comment: Effluent sampler is on constant time and constant volume with a sample taken every 20
minutes. Sampler temperature was 1 degree C on the day of inspection.
Flow Measurement - Effluent
# Is flow meter used for reporting?
Is flow meter calibrated annually?
Is the flow meter operational?
(If units are separated) Does the chart recorder match the flow meter?
Comment: Effluent flow meter was calibrated on February 8, 2024 by CITI. LLC
Yes No NA NE
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
❑ ❑ ■ ❑
Upstream / Downstream Sampling Yes No NA NE
Is the facility sampling performed as required by the permit (frequency, sampling type, ❑ ❑ ❑ ❑
and sampling location)?
Comment:
Page# 6

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR.
Director
4}y SCAT, 4
NORTH CAROLINA
Environmental Quality
Certified Mail # 9589 0710 5270 0283 9414 48
Return Receipt Requested
Will Lewis, Mayor
City of Havelock
1 Governmental Ave
Havelock, NC 28532
SUBJECT: NOTICE OF VIOLATION
NOV-2024-DV-0163
Permit No. NCO021253
Havelock WWTP
Craven County
Dear Permittee:
March 19, 2024
& INTENT TO ASSESS CIVIL PENALTY
On March 2, 2024 the duty person noticed the sludge blankets in the Clarifiers were at 10' and immediately started
wasting sludge. At 10:30 am the sand filters blinded and started overflowing and continued overflowing until
1:30 pm. Approximately 585,000 gallons of partially treated wastewater overflowed with approximately 250,000
gallons reaching East Prong of Slocum Creek. The bypass is an unpermitted discharge and is a violation of North
Carolina General Statues 143.215.1.
143-215.1. Control of sources of water pollution; permits required.
(a) Activities for Which Permits Required. - Except as provided in subsection (a6) of this section, no person
shall do any of the following things or carry out any of the following activities unless that person has
received a permit from the Commission and has complied with all conditions set forth in the permit:
(1) Make any outlets into the waters of the State
A Notice of Violation/Intent to Issue Civil Penalty is being issued for the noted violation of North Carolina General
Statute (G.S.) 143-215.1 and the facility's NPDES WW Permit. Pursuant to G.S. 143-215.6A, a civil penalty of
not more than twenty-five thousand dollars ($25,000.00) may be assessed against any person who violates or
fails to act in accordance with the terms, conditions, or requirements of any permit issued pursuant to G.S.
143-215.1.
If you wish to provide additional information regarding the noted violation or discuss overall compliance please
respond in writing within ten (10) business days after receipt of this Notice. A review of your response will be
considered along with any information provided on the 5 day report. You will then be notified of any civil penalties
that may be assessed regarding the violations. If no response is received in this Office within the 10-day
period, a civil penalty assessment may be prepared.
Noeth Call!. Pepa,t-ritoFEmlrammental-111, 1 Division nFWater Resources
Washingi-RNkral Olflu 1943 Washington 5q—Mall l Washington, North Carollm 27569
°�•^^^^a^^�+�+� 252.946b481

Remedial actions should have already been taken to correct this problem and prevent further occurrences in the
future. The Division of Water Resources may pursue enforcement action for this and any additional violations of
State law. If the violations are of a continuing nature, not related to operation and/or maintenance problems,
and you anticipate remedial construction activities, then you may wish to consider applying for a Special Order by
Consent.
If you have any questions concerning this matter, please contact Robbie Bullock of the Washington Regional Office
at 252-946-6481.
Cc: Laserfiche
Sincerely,
kofwe4x Tk4.444ol
Robert Tankard, Assistant Regional Supervisor
Water Quality Regional Operations Section
Washington Regional Office
Division of Water Resources, NCDEQ
North Carohna Pepartment oFEmlrammental Q4alhy Diylsbn aFWalsr Resources
WashingSBR RNIoml 0111u 1943 Washington 5q—Mall l Washington, North Caroltra 27569
252.946b481

Saltwater RPA 95% Probablity/95% Confidence
MAXIMUM DATA POINTS = 58
aREQUIRED DATA ENTRY
Table 1. Project Information Table 2. Parameters of Concern
❑ CHECK IF HQW OR ORW WQS Name WQs Type Chronic Modifier Acute PQL Units
Facility Name
Havelock WWTP
Par01
WWTP/WTP Class
Grade IV
Par02
NPDES Permit
NCO021253
Par03
Outfall
Par04
001
Flow, Qw (MGD)
2.800
Par05
Receiving Stream
Neuse River Estuary
Par06
Stream Class
SB, Sw, NSW
Par07
7Q10s (cfs)
Modeled, Chronic Dilution Factor defined
Par08
7Q10w (cfs)
Modeled, Chronic Dilution Factor defined
Par09
30Q2 (cfs)
Modeled, Chronic Dilution Factor defined
Par10
QA (cfs)
Modeled, Chronic Dilution Factor defined
Parl1
1Q10s (cfs)
Modeled, Chronic Dilution Factor defined
Par12
CHRONIC IWC% = 14.6
Par13
CHRONIC DILUITION FACTOR =
6.8500
Par14
Data Source(s)
Permittee submitted DMRs and PPAs. Par15
Wr
Par16
To apply a Model IWC%: Enter
the "Flow, Qw, (MGD)"and the
Par17
"CHRONIC DILUTION FACTOR
Par18
=" values and the CHRONIC
IWC% is calculated and
displayed. The CHRONIC IWC%
is automatically applied to
calculate the parameter's
Saltwater streams are tidal resulting in all IWC % = 100%. If Par19
an approved model is conducted then a chronic dilution
fiiappliedhPar20
actors determined and can be to a discharge to
calculate its IWC % . If a stream is classified as a SA or Par21
Allowable Cw values both chronic
ORIN then its is also classified as a HQW. The appropriate Par22
and acute. I IWC % must be defined to properly calculate WQS-based
Arsenic
Aquatic Life
C
36
SW
69
ug/L
Arsenic
Human Health
C
10
HH
ug/L
Cadmium
Aquatic Life
NC
8.9
SW
40.2
ug/L
Total Phenolic Compounds
Aquatic Life
NC
300
A
10
ug/L
Chromium VI
Aquatic Life
NC
50.4
SW
1107.8
ug/L
Chromium, Total
Aquatic Life
NC
N/A
SW
N/A
ug/L
Copper
Aquatic Life
NC
3.7
SW
5.8
ug/L
Cyanide
Aquatic Life
NC
1
SW
1
10
ug/L
Lead
Aquatic Life
NC
8.5
SW
220.8
ug/L
Mercury
Aquatic Life
NC
25
SW
0.5
ng/L
Molybdenum
Human Health
NC
2.0
HH
mg/L
Nickel
Aquatic Life
NC
8.3
SW
74.7
ug/L
Selenium
Aquatic Life
NC
71
SW
ug/L
Silver
Aquatic Life
NC
0.1
SW
2.2
ug/L
Zinc
Aquatic Life
NC
85.6
SW
95.1
ug/L
NOTE: The aquatic life chronic and acute WQS for several metals are calculated based on EPA conversi(
see "Diss. SW stds. As TM" for more details and summary of calculated WQS..
21253 Saltwater RPA 2024_2.8 MGD,input
8/22/2024

REASONABLE POTENTIAL ANALYSIS - DATA
Date Data
1 2/2/2021 <
2 5/25/2022 <
3 8/2/2023 <
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Arsenic
Values" then "COPY"
Maximum data
points = 58
BDL=1/2DL Results
2 1 Std Dev.
0.0000
2 1 Mean
1.0000
2 1 C.V. (default)
0.6000
n
3
Mult Factor =
3.0000
Max. Value
1.0 ug/L
Max. Pred Cw
3.0 ug/L
Date Data
1 2/2/2021 <
2 5/25/2022 <
3 8/2/2023 <
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Cadmium
Values" then "COPY"
Maximum data
points = 58
BDL=1/2DL
Results
0.5 0.25
Std Dev.
0.0000
0.5 0.25
Mean
0.2500
0.5 0.25
C.V. (default)
0.6000
n
3
Mult Factor =
3.0000
Max. Value
0.25 ug/L
Max. Pred Cw
0.75 ug/L
21253 Saltwater RPA 20242.8 MGD,data
Date)

REASONABLE POTENTIAL ANALYSIS - DATA
Total Phenolic Compounds
Date Data
1 2/2/2021 <
2 5/25/2022 <
3 8/2/2023
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
BDL=1/2DL Results
20 10 Std Dev.
20 10 Mean
119 119 C.V. (default)
n
Mult Factor =
Max. Value
Max. Pred Cw
Values" then "COPY"
Maximum data
points = 58
62.9312
46.3333
0.6000
3
3.0000
119.0 ug/L
357.0 ug/L
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Chromium VI I
Date Data BDL=1/2DL Results
Std Dev.
Mean
C.V.
n
Mult Factor =
Max. Value
Max. Pred Cw
Values" then "COPY".
Maximum data points =
58
NO DATA
NO DATA
NO DATA
0.0
N/A
N/A ug/L
N/A ug/L
21253 Saltwater RPA 20242.8 MGD,data
Date)

REASONABLE POTENTIAL ANALYSIS - DATA
Date Data
1 2/2/2021 <
2 5/25/2022 <
3 8/2/2023 <
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Chromium, Total
Values" then "COPY"
Maximum data
points = 58
BDL=1/2DL
Results
5 2.5
Std Dev.
0.0000
5 2.5
Mean
2.5000
5 2.5
C.V. (default)
0.6000
n
3
Mult Factor =
3.0000
Max. Value
2.5 ug/L
Max. Pred Cw
7.5 ug/L
Date Data
1 10/16/2019
2 1/13/2020
3 4/13/2020
4 7/14/2020
5 10/13/2020
6 1 /11 /2021
7 4/12/2021
8 7/14/2021
9 10/13/2021
10 1 /26/2022
11 5/3/2022
12 7/12/2022
13 10/4/2022
14 1 /10/2023
15 4/5/2023
16 7/13/2023
17 10/10/2023
18 1 /23/2024
19 4/26/2024
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Copper
Values" then "COPY"
Maximum data
points = 58
BDL=1/2DL
Results
10
10
Std Dev.
11.6534
6
6
Mean
9.6316
7
7
C.V.
1.2099
7
7
n
19
9
9
5
5
Mult Factor =
1.7500
7
7
Max. Value
57.00 ug/L
10
10
Max. Pred Cw
99.75 ug/L
10
10
7
7
6
6
6
6
57
57
9
9
4
4
6
6
5
5
9
9
3
3
21253 Saltwater RPA 20242.8 MGD,data
Date)

REASONABLE POTENTIAL ANALYSIS - DATA
Date Data
1 2/2/2021 <
2 5/25/2022 <
3 8/2/2023 <
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Cyanide
Values" then "COPY"
Maximum data
points = 58
BDL=1/2DL
Results
5 5
Std Dev.
0.0000
5 5
Mean
5.0000
5 5
C.V. (default)
0.6000
n
3
Mult Factor =
3.0000
Max. Value
5.0 ug/L
Max. Pred Cw
15.0 ug/L
Date Data
1 2/2/2021 <
2 5/25/2022 <
3 8/2/2023 <
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Lead
Values" then "COPY"
Maximum data
points = 58
BDL=1/2DL Results
2 1 Std Dev.
0.0000
2 1 Mean
1.0000
2 1 C.V. (default)
0.6000
n
3
Mult Factor =
3.00
Max. Value
1.00 ug/L
Max. Pred Cw
3.00 ug/L
21253 Saltwater RPA 20242.8 MGD,data
Date)

REASONABLE POTENTIAL ANALYSIS - DATA
21253 Saltwater RPA 20242.8 MGD,data
Date}

REASONABLE POTENTIAL ANALYSIS - DATA
Date
1 2/2/2021
2 5/25/2022
3 8/2/2023
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Nickel
Data BDL=1/2DL
Results
< 2 1
Std Dev.
2 2
Mean
7 7
C.V. (default)
n
Mult Factor =
Max. Value
Max. Pred Cw
Values" then "COPY"
Maximum data
points = 58
3.2146
3.3333
0.6000
3
3.0000
7.00 ug/L
21.00 ug/L
Date Data
1 2/2/2021 <
2 5/25/2022 <
3 8/2/2023 <
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Selenium
Values" then "COPY"
Maximum data
points = 58
BDL=1/2DL
Results
1 0.5
Std Dev.
0.0000
1 0.5
Mean
0.5000
1 0.5
C.V. (default)
0.6000
n
3
Mult Factor =
3.0000
Max. Value
0.5 ug/L
Max. Pred Cw
1.5 ug/L
21253 Saltwater RPA 20242.8 MGD,data
Date)

REASONABLE POTENTIAL ANALYSIS - DATA
Date Data
1 2/2/2021 <
2 5/25/2022 <
3 8/2/2023 <
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Silver
Values" then "COPY"
Maximum data
points = 58
BDL=1/2DL
Results
1 0.5
Std Dev.
0.0000
1 0.5
Mean
0.5000
1 0.5
C.V. (default)
0.6000
n
3
Mult Factor =
3.0000
Max. Value
0.50 ug/L
Max. Pred Cw
1.50 ug/L
Date Data
1 10/16/2019
2 1 /13/2020
3 4/13/2020
4 2/2/2021
5 5/22/2022
6 8/2/2023
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Zinc
Values" then "COPY"
Maximum data
points = 58
BDL=1/2DL
Results
47
47
Std Dev.
5.8195
41
41
Mean
40.6667
34
34
C.V. (default)
0.6000
47
47
n
6
41
41
34
34
Mult Factor =
2.1400
Max. Value
47.0 ug/L
Max. Pred Cw
100.6 ug/L
21253 Saltwater RPA 20242.8 MGD,data
Date)

Havelock WWTP
Outfall 001
NCO021253 Saltwater RPA 95% Probablity/95% Confidence
MAXIMUM DATA POINTS = 58
Qw (MGD) = 2.80 WWTP/WTP Class: Grade IV
1Q10S (cfs) = Modeled, Chronic Dilution Factor defined IWC% @ 1Q10S = 17.17872706
7Q10S (cfs) = Modeled, Chronic Dilution Factor defined IWC% @ 7Q10S = 14.59854015
7Q10W (cfs) = Modeled, Chronic Dilution Factor defined IWC% @ 7Q10W = 14.59854015
30Q2 (cfs) = Modeled, Chronic Dilution Factor defined IWC% @ 30Q2 = 14.59854015
Avg. Stream Flow, QA (cfs) = Modeled, Chronic Dilution Factor defined IWC% @ QA = 14.59854015
Receiving Stream: Neuse River Estuary Stream Class: SB, Sw, NSW
Qw = 2.8 MGD
PARAMETER
NC STANDARDS OR EPA CRITERIA
REASONABLE POTENTIAL RESULTS
TYPE
i1
CCY
a
Z
RECOMMENDED ACTION
Applied
Chronic Acute
D
n # Det. Max Pred Cw Allowable Cw
Standard
Acute (SW): 401.7
Arsenic
C
36 SW(7Q1Os) 69
ug/L
3 0
3.0
___
Chronic (SW) 246.6
C.V. (default)
=_2____
Arsenic
C
10 HH(Qavg)
ug/L
Note: n < 9
NO DETECTS
_Max _MDL
Chronic (HH)_68.5
No detects - no limits or monitoring
Limited data set
Max MDL = 2
Acute: 234.01
Cadmium
NC
8.9 SW(7Q10s) 40.2
ug/L
3 0
1 1
Note: n < 9
C.V. (default)
_____
Chronic 60.97
No detects - no limits or monitoring
Limited data set
NO DETECTS
Max MDL = 0.5
Acute: NO WQS
Total Phenolic Compounds
NC
300 A(30Q2)
10.0
ug/L
3 1
357.0
Note: n < 9
C.V. (default)
_
Chronic 2,055.0
No RP for limited dataset (n < 8) - no limits or
Limited data set
No value > Allowable Cw
monitoring
Acute: 6,448.7
Chromium VI
NC
50.4 SW(7Q10s) 1107.8
ug/L
0 0
N/A
--Chronic----- 345.2 --
----------------------------
Chromium, Total
NC
ug/L
3 0
7.5
Maximum reported value = 2.5
No detects - no limits or monitoring
Note: n < 9
C.V. (default)
Limited data set
NO DETECTS
Max MDL - 5
Acute: 33.76
Copper
NC
3.7 SW(7Q1Os) 5.8
ug/L
19 19
99.75
Chronic:25.35
RP found based on one high value - apply
1 values > Allowable Cw
quarterly monitoring
Acute: 5.8
Cyanide
NC
1 SW(7Q1Os) 1
10.0
ug/L
3 0
15.0
lNo
Note: n < 9
C.V. (default)
_______
Chronic 6.9
detects - no limits or monitoring
Limited data set
NO DETECTS
Acute: 1,285.31
Lead
NC
8.5 SW(7Q1Os) 220.8
ug/L
3 0
3.0
Note: n < 9
C.V. (default)
_____
Chronic 58.23
No detects - no limits or monitoring
Limited data set
NO DETECTS
Max MDL = 2
Acute: NO WQS
Mercury
NC
25 SW(7Q1Os)
0.5
ng/L
0 0
N/A
------171.3 --
--Chronic:
----------------------------
Page 9 of 10
21253 Saltwater RPA 2024_2.8 MGD,rpa
8/22/2024

Havelock WWTP
Outfall 001
NCOO21253
Saltwater RPA 95% Probablity/95% Confidence
Qw = 2.8 MGD
Acute: NO WQS
Molybdenum
NC
2 HH(7Q10s)
mg/L
0 0
N/A
------13.7 --
--Chronic:
----------------------------
Acute: 434.84
Nickel
NC
8.3 SW(7Q 1 Os) 74.7
ug/L
3 2
21.0
Note: n < 9
C.V. (default)
Chronic: 56.86
No RP for limited dataset (n < 8) - no limits or
Limited data set
No value > Allowable Cw
monitoring
Acute: NO WQS
Selenium
NC
71 SW(7Q10s)
ug/L
3 0
1.50
Note: n < 9
C.V. (default)
_____
Chronic 486.4
No detects - no limits or monitoring
Limited data set
NO DETECTS
Max MDL = 1
Acute: 12.81
Silver
NC
0.1 SW(7QIOs) 2.2
ug/L
3 0
1.5
Note: n < 9
C.V. (default)
_______
Chronic 0.69
No detects - no limits or monitoring
Limited data set
NO DETECTS
Max MDL = 1
Acute: 553.6
Zinc
NC
85.6 SW(7Q 1 Os) 95.1
ug/L
6 6
100.58
Note: n <_ 9
C.V. (default)
Chronic: 586.4
No RP for limited dataset (n < 8) - no limits or
Limited data set
No value > Allowable Cw
monitoring
Acute:
0 0
N/A
--Chronic-----------
----------------------------
Acute:
0 0
N/A
--Chronic-----------
----------------------------
Acute:
0 0
N/A
--Chronic-----------
----------------------------
Acute:
0 0
N/A
--Chronic-----------
----------------------------
Acute:
0 0
N/A
--Chronic-----------
----------------------------
Acute:
0 0
N/A
--Chronic-----------
----------------------------
Acute:
0 0
N/A
--Chronic-----------
----------------------------
21253 Saltwater RPA 2024_2.8 MGD,rpa
Page 10 of 10 8/22/2024

Saltwater RPA 95% Probablity/95% Confidence
MAXIMUM DATA POINTS = 58
aREQUIRED DATA ENTRY
Table 1. Project Information Table 2. Parameters of Concern
❑ CHECK IF HQW OR ORW WQS Name WQs Type Chronic Modifier Acute PQL Units
Facility Name
WWTP/WTP Class
NPDES Permit
Outfall
Flow, Qw (MGD)
Receiving Stream
Stream Class
7Q10s (cfs)
7Q10w (cfs)
30Q2 (cfs)
QA (cfs)
1Q10s (Cfs)
Data Source(s)
Havelock WWTP
Par01
Par02
Par03
Par04
Par05
Par06
Par07
Par08
Par09
Par10
Par11
Par12
Par13
Par14
Par15
Par16
Par17
Par18
Grade IV
NCO021253
001
2.250
Neuse River Estuary
SB, Sw, NSW
Tidal, IWC = 100%
Tidal, IWC = 100%
Tidal, IWC = 100%
Tidal, IWC = 100%
Tidal, IWC = 100%
Permittee submitted DMRs and PPAs.
Saltwater streams are tidal resulting in all IWC % = 100%. If Par19
an approved model is conducted then a chronic dilution Par20
factor is determined and can be applied to a discharge to
calculate its IWC % . If a stream is classified as a SA or Par21
ORINthen its is also classified as a HQW. The appropriate Par22
IWC % must be defined to properly calculate WQS-based
Arsenic
Aquatic Life
C
36
SW
69
ug/L
Arsenic
Human Health
C
10
HH
ug/L
Cadmium
Aquatic Life
NC
8.9
SW
40.2
ug/L
Total Phenolic Compounds
Aquatic Life
NC
300
A
10
ug/L
Chromium VI
Aquatic Life
NC
50.4
SW
1107.8
ug/L
Chromium, Total
Aquatic Life
NC
N/A
SW
N/A
ug/L
Copper
Aquatic Life
NC
3.7
SW
5.8
ug/L
Cyanide
Aquatic Life
NC
1
SW
1
10
ug/L
Lead
Aquatic Life
NC
8.5
SW
220.8
ug/L
Mercury
Aquatic Life
NC
25
SW
0.5
ng/L
Molybdenum
Human Health
NC
2.0
HH
mg/L
Nickel
Aquatic Life
NC
8.3
SW
74.7
ug/L
Selenium
Aquatic Life
NC
71
SW
ug/L
Silver
Aquatic Life
NC
0.1
SW
2.2
ug/L
Zinc
Aquatic Life
NC
85.6
SW
95.1
ug/L
NOTE: The aquatic life chronic and acute WQS for several metals are calculated based on EPA conversi(
see "Diss. SW stds. As TM" for more details and summary of calculated WQS..
21253 Saltwater RPA 2024_2.25 MGD,input
8/22/2024

Havelock WWTP
Outfall 001
NCO021253 Saltwater RPA 95% Probablity/95% Confidence
MAXIMUM DATA POINTS = 58
Qw (MGD) = 2.25 WWTP/WTP Class: Grade IV
1Q10S (cfs) = Tidal, IWC = 100% IWC% @ 1Q10S = 100
7Q10S (cfs) = Tidal, IWC = 100% IWC% @ 7Q10S = 100
7Q10W (cfs) = Tidal, IWC = 100% IWC% @ 7Q10W = 100
30Q2 (cfs) = Tidal, IWC = 100% IWC% @ 30Q2 = 100
Avg. Stream Flow, QA (cfs) = Tidal, IWC = 100% IWC% @ QA = 100
Receiving Stream: Neuse River Estuary Stream Class: SB, Sw, NSW
Qw = 2.25 MGD
PARAMETER
NC STANDARDS OR EPA CRITERIA
REASONABLE POTENTIAL RESULTS
TYPE
i1
CCY
a
Z
RECOMMENDED ACTION
Applied
Chronic Acute
D
n # Det. Max Pred Cw Allowable Cw
Standard
Acute (SW): 69.0
Arsenic
C
36 SW(7Q1Os) 69
ug/L
3 0
3.0
_____
Chronic (SW) 36.0
C.V. (default)
=_2____
Arsenic
C
10 HH(Qavg)
ug/L
Note: n < 9
NO DETECTS
_Max _MDL
Chronic (HH)_10.0
No detects - no limits or monitoring
Limited data set
Max MDL = 2
Acute: 40.20
Cadmium
NC
8.9 SW(7Q10s) 40.2
ug/L
3 0
1 1
Note: n < 9
C.V. (default)
_______
Chronic 8.90
No detects - no limits or monitoring
Limited data set
NO DETECTS
Max MDL = 0.5
Acute: NO WQS
Total Phenolic Compounds
NC
300 A(30Q2)
10.0
ug/L
3 1
357.0
Note: n < 9
C.V. (default)
_
Chronic 300.0
RP for Limited Dataset (n < 8 samples) - apply
Limited data set
No value > Allowable Cw
Quarterly Monitoring
Acute: 1,107.8
Chromium VI
NC
50.4 SW(7Q10s) 1107.8
ug/L
0 0
N/A
-- _ _ _ _
-------- --
Chronic
----------------------------
Chromium, Total
NC
ug/L
3 0
7.5
Maximum reported value = 2.5
No detects - no limits or monitoring
Note: n < 9
C.V. (default)
Limited data set
NO DETECTS
Max MDL - 5
Acute: 5.80
Copper
NC
3.7 SW(7Q1Os) 5.8
ug/L
19 19
99.75
Chronic:3.70
RP found - apply limits and montly monitoring
18 values > Allowable Cw
Acute: 1.0
Cyanide
NC
1 SW(7Q1Os) 1
10.0
ug/L
3 0
15.0
Note: n < 9
C.V. (default)
_______
Chronic 1.0
No detects - no limits or monitoring
Limited data set
NO DETECTS
Acute: 220.80
Lead
NC
8.5 SW(7Q1Os) 220.8
ug/L
3 0
3.0
Note: n < 9
C.V. (default)
_______
Chronic 8.50
No detects - no limits or monitoring
Limited data set
NO DETECTS
Max MDL = 2
Acute: NO WQS
Mercury
NC
25 SW(7Q10s)
0.5
ng/L
0 0
N/A
------25.0 --
--Chronic:
----------------------------
Page 2 of 3
21253 Saltwater RPA 2024_2.25 MGD,rpa
8/22/2024

Havelock WWTP
Outfall 001
NCO021253
Saltwater RPA 95% Probablity/95% Confidence
Qw=2.25 MGD
Acute: NO WQS
Molybdenum
NC
2 HH(7Q10s)
mg/L
0 0
N/A
--Chronic------ 2.0 --
----------------------------
Acute: 74.70
Nickel
NC
8.3 SW(7Q 1 Os) 74.7
ug/L
3 2
21.0
Note: n < 9
C.V. (default)
Chronic: 8.30
RP for Limited Dataset (n < 8 samples) - apply
Limited data set
No value > Allowable Cw
Quarterly Monitoring
Acute: NO WQS
Selenium
NC
71 SW(7Q10s)
ug/L
3 0
1.50
Note: n < 9
C.V. (default)
____
Chronic 71.0
No detects - no limits or monitoring
Limited data set
NO DETECTS
Max MDL = 1
Acute: 2.20
Silver
NC
0.1 SW(7QIOs) 2.2
ug/L
3 0
1.5
Note: n < 9
C.V. (default)
_______
Chronic 0.10
No detects - no limits or monitoring
Limited data set
NO DETECTS
Max MDL = 1
Acute: 95.1
Zinc
NC
85.6 SW(7Q 1 Os) 95.1
ug/L
6 6
100.58
Note: n < 9
C.V. (default)
_
Chronic 85.6
RP for Limited Dataset (n < 8 samples) - apply
Limited data set
No value > Allowable Cw
Quarterly Monitoring
Acute:
0 0
N/A
--Chronic-----------
----------------------------
Acute:
0 0
N/A
--Chronic-----------
----------------------------
Acute:
0 0
N/A
--Chronic-----------
----------------------------
Acute:
0 0
N/A
--Chronic-----------
----------------------------
Acute:
0 0
N/A
--Chronic-----------
----------------------------
Acute:
0 0
N/A
--Chronic-----------
----------------------------
Acute:
0 0
N/A
--Chronic-----------
----------------------------
Page 3 of 3
21253 Saltwater RPA 2024_2.25 MGD,rpa
8/22/2024

Saltwater RPA 95% Probablity/95% Confidence
MAXIMUM DATA POINTS = 58
aREQUIRED DATA ENTRY
Table 1. Project Information Table 2. Parameters of Concern
❑ CHECK IF HQW OR ORW WQS Name WQs Type Chronic Modifier Acute PQL Units
Facility Name
Havelock WWTP
Par01
WWTP/WTP Class
Grade IV
Par02
NPDES Permit
NCO021253
Par03
Outfall
Par04
001
Flow, Qw (MGD)
3.500
Par05
Receiving Stream
Neuse River Estuary
Par06
Stream Class
SB, Sw, NSW
Par07
7Q10s (cfs)
Modeled, Chronic Dilution Factor defined
Par08
7Q10w (cfs)
Modeled, Chronic Dilution Factor defined
Par09
30Q2 (cfs)
Modeled, Chronic Dilution Factor defined
Par10
QA (cfs)
Modeled, Chronic Dilution Factor defined
Parl1
1Q10s (cfs)
Modeled, Chronic Dilution Factor defined
Par12
CHRONIC IWC% = 16.3
Par13
CHRONIC DILUITION FACTOR =
6.1350
Par14
Data Source(s)
Permittee submitted DMRs and PPAs. Par15
Wr
Par16
To apply a Model IWC%: Enter
the "Flow, Qw, (MGD)"and the
Par17
"CHRONIC DILUTION FACTOR
Par18
=" values and the CHRONIC
IWC% is calculated and
displayed. The CHRONIC IWC%
is automatically applied to
calculate the parameter's
Saltwater streams are tidal resulting in all IWC % = 100%. If Par19
an approved model is conducted then a chronic dilution
fiiappliedhPar20
actors determined and can be to a discharge to
calculate its IWC % . If a stream is classified as a SA or Par21
Allowable Cw values both chronic
ORIN then its is also classified as a HQW. The appropriate Par22
and acute. I IWC % must be defined to properly calculate WQS-based
Arsenic
Aquatic Life
C
36
SW
69
ug/L
Arsenic
Human Health
C
10
HH
ug/L
Cadmium
Aquatic Life
NC
8.9
SW
40.2
ug/L
Total Phenolic Compounds
Aquatic Life
NC
300
A
10
ug/L
Chromium VI
Aquatic Life
NC
50.4
SW
1107.8
ug/L
Chromium, Total
Aquatic Life
NC
N/A
SW
N/A
ug/L
Copper
Aquatic Life
NC
3.7
SW
5.8
ug/L
Cyanide
Aquatic Life
NC
1
SW
1
10
ug/L
Lead
Aquatic Life
NC
8.5
SW
220.8
ug/L
Mercury
Aquatic Life
NC
25
SW
0.5
ng/L
Molybdenum
Human Health
NC
2.0
HH
mg/L
Nickel
Aquatic Life
NC
8.3
SW
74.7
ug/L
Selenium
Aquatic Life
NC
71
SW
ug/L
Silver
Aquatic Life
NC
0.1
SW
2.2
ug/L
Zinc
Aquatic Life
NC
85.6
SW
95.1
ug/L
NOTE: The aquatic life chronic and acute WQS for several metals are calculated based on EPA conversi(
see "Diss. SW stds. As TM" for more details and summary of calculated WQS..
21253 Saltwater RPA 2024_3.5 MGD,input
8/22/2024

Havelock WWTP
Outfall 001
NCO021253 Saltwater RPA 95% Probablity/95% Confidence
MAXIMUM DATA POINTS = 58
Qw (MGD) = 3.50 WWTP/WTP Class: Grade IV
1Q10S (cfs) = Modeled, Chronic Dilution Factor defined IWC% @ 1Q10S = 19.12355439
7Q10S (cfs) = Modeled, Chronic Dilution Factor defined IWC% @ 7Q10S = 16.2999185
7Q10W (cfs) = Modeled, Chronic Dilution Factor defined IWC% @ 7Q10W = 16.2999185
30Q2 (cfs) = Modeled, Chronic Dilution Factor defined IWC% @ 30Q2 = 16.2999185
Avg. Stream Flow, QA (cfs) = Modeled, Chronic Dilution Factor defined IWC% @ QA = 16.2999185
Receiving Stream: Neuse River Estuary Stream Class: S13, Sw, NSW
Qw = 3.5 MGD
PARAMETER
NC STANDARDS OR EPA CRITERIA
REASONABLE POTENTIAL RESULTS
TYPE
i1
CCY
a
Z
RECOMMENDED ACTION
Applied
Chronic Acute
D
n # Det. Max Pred Cw Allowable Cw
Standard
Acute (SW): 360.8
Arsenic
C
36 SW(7Q1Os) 69
ug/L
3 0
3.0
Chronic (SW)--- 220.9 --
----------------------------
C.V. (default)
=_2_____
Arsenic
C
10 HH(Qavg)
ug/L
Note: n < 9
NO DETECTS
_Max _MDL
Chronic (HH)_61.4
No detects - no limits or monitoring
Limited data set
Max MDL = 2
Acute: 210.21
Cadmium
NC
8.9 SW(7Q10s) 40.2
ug/L
3 0
1 1
Note: n < 9
C.V. (default)
_____
Chronic 54.60
No detects - no limits or monitoring
Limited data set
NO DETECTS
Max MDL = 0.5
Acute: NO WQS
Total Phenolic Compounds
NC
300 A(30Q2)
10.0
ug/L
3 1
357.0
Note: n < 9
C.V. (default)
_
Chronic 1,840.5
No RP for limited dataset (n < 8) - no limits or
Limited data set
No value > Allowable Cw
monitoring
Acute: 5,792.9
Chromium VI
NC
50.4 SW(7Q10s) 1107.8
ug/L
0 0
N/A
--Chronic----- 309.2 --
----------------------------
Chromium, Total
NC
ug/L
3 0
7.5
Maximum reported value = 2.5
No detects - no limits or monitoring
Note: n < 9
C.V. (default)
Limited data set
NO DETECTS
Max MDL - 5
Acute: 30.33
Copper
NC
3.7 SW(7Q1Os) 5.8
ug/L
19 19
99.75
Chronic:22.70
RP found based on one high value - apply
1 values > Allowable Cw
quarterly monitoring
Acute: 5.2
Cyanide
NC
1 SW(7Q1Os) 1
10.0
ug/L
3 0
15.0
lNo
Note: n < 9
C.V. (default)
_______
Chronic 6.1
detects - no limits or monitoring
Limited data set
NO DETECTS
Acute: 1,154.60
Lead
NC
8.5 SW(7Q1Os) 220.8
ug/L
3 0
3.0
Note: n < 9
C.V. (default)
_____
Chronic 52.15
No detects - no limits or monitoring
Limited data set
NO DETECTS
Max MDL = 2
Acute: NO WQS
Mercury
NC
25 SW(7Q1Os)
0.5
ng/L
0 0
N/A
------153.4 --
--Chronic:
----------------------------
Page 2 of 3
21253 Saltwater RPA 2024_3.5 MGD,rpa
8/22/2024

Havelock WWTP
Outfall 001
NCOO21253
Saltwater RPA 95% Probablity/95% Confidence
Qw = 3.5 MGD
Acute: NO WQS
Molybdenum
NC
2 HH(7Q10s)
mg/L
0 0
N/A
------12.3 --
--Chronic:
----------------------------
Acute: 390.62
Nickel
NC
8.3 SW(7Q 1 Os) 74.7
ug/L
3 2
21.0
Note: n < 9
C.V. (default)
Chronic: 50.92
No RP for limited dataset (n < 8) - no limits or
Limited data set
No value > Allowable Cw
monitoring
Acute: NO WQS
Selenium
NC
71 SW(7Q10s)
ug/L
3 0
1.50
Note: n < 9
C.V. (default)
_____
Chronic 435.E
No detects - no limits or monitoring
Limited data set
NO DETECTS
Max MDL = 1
Acute: 11.50
Silver
NC
0.1 SW(7QIOs) 2.2
ug/L
3 0
1.5
Note: n < 9
C.V. (default)
_
Chronic 0.61
No detects - no limits or monitoring
Limited data set
NO DETECTS
Max MDL = 1
Acute: 497.3
Zinc
NC
85.6 SW(7Q 1 Os) 95.1
ug/L
6 6
100.58
Note: n <_ 9
C.V. (default)
Chronic: 525.2
No RP for limited dataset (n < 8) - no limits or
Limited data set
No value > Allowable Cw
monitoring
Acute:
0 0
N/A
--Chronic-----------
----------------------------
Acute:
0 0
N/A
--Chronic-----------
----------------------------
Acute:
0 0
N/A
--Chronic-----------
----------------------------
Acute:
0 0
N/A
--Chronic-----------
----------------------------
Acute:
0 0
N/A
--Chronic-----------
----------------------------
Acute:
0 0
N/A
--Chronic-----------
----------------------------
Acute:
0 0
N/A
--Chronic-----------
----------------------------
Page 3 of 3
21253 Saltwater RPA 2024_3.5 MGD,rpa
8/22/2024

8/23/24 WQS = 25 ng/L
Facility Name Havelock WWTP / NC0021253
/Permit No. :
MERCURY WQBEL/TBEL EVALUATION
No Limit Required
MMP Required
V:2013-6
Total Mercury 1631E PQL = 0.5 ng/L
Date Modifier Data Entry
Value
7Q10s = 0.000 cfs WQBEL = 25.00 ng/L
Permitted Flow = 2.250 47 ng/L
11/13/19
< 1
0.5
0.5 ng/L
- Annual Average for 2019
2/3/20
< 1
0.5
0.5 ng/L
- Annual Average for 2020
5/11/22
1.4
1.4
1.4 ng/L
- Annual Average for 2022
5/3/23
< 1
0.5
8/3/23
< 1
0.5
0.5 ng/L
- Annual Average for 2023

Hazen
July 17, 2024
To: Rodney George
From: Hazen
Technical Memorandum
Re: Reduction of Monitoring Frequency for Exceptionally Performing Facilities
City of Havelock Wastewater Treatment Plant
Reduction of Monitoring Frequency for
Exceptionally Performing Facilities
In support of the National Pollutant Discharge Elimination System (NPDES) permit renewal, a
monitoring frequency reduction analysis was conducted on the City of Havelock Wastewater Treatment
Plant (WWTP) Discharge Monitoring Report (DMR) data between June 2021 and May 2024. The
monitoring frequency reduction analysis was performed in accordance with the Division of Water
Resources (DWR) guidance document, Reduction of Monitoring Frequencies in NPDES Permits for
Exceptionally Performing Facilities (October 2012). Per the DWR guidance, the following criteria has
been met by the City of Havelock:
• The City of Havelock WWTP has not had any civil penalty assessments in the past
three years for permit limit violations for either total suspended solids (TSS),
ammonia, or enterococci.
• The City of Havelock WWTP employees have not been convicted of any criminal
violations of the Clean Water Act (CWA).
• The City of Havelock WWTP is not currently under a Special Order of Consent
(SOC).
• The City of Havelock WWTP is not on EPA's Quarterly Noncompliance Report for
either TSS, ammonia, or enterococci.
Table 1 provides a summary of DMR data from June 2021 and May 2024 that supports a reduction in the
monitoring frequency for TSS, ammonia, and enterococci. The three-year arithmetic mean of effluent data
is less than 50 percent of the monthly permit limit for TSS, ammonia, and enterococci. Less than 15 of the
daily effluent samples are over 200 percent of the monthly average permit limit for TSS and ammonia and
less than 20 of the daily effluent samples are over 200 percent of the weekly average permit limit for
enterococci. The Excel Spreadsheet, NPDES Permit NCO021253 RMF 2024.x1s, contains the data for the
reduction of monitoring frequency analysis. The data output is attached to this memo. This spreadsheet
will be transmitted to DWR upon request.
Hazen and Sawyer • 4011 WestChase Boulevard Suite 500 • Raleigh, NC 27607 • 919.833.7152

Hazen
July 17, 2024
The City of Havelock WWTP has the the requirements to be categorized as an Exceptionally Performing
Facility per DWR guidance and is eligible for a reduction in the monitoring frequency of TSS, ammonia,
and enterococci.
Table 1: Summary of Reduction of Monitoring Frequency Reduction Analysis for City of Havelock
WWTP
Approval Criteria 1, 2
BOD5
TSS
Ammonia
Enterococci
3-year average
3.41 mg/L (summer)
2.51 mg/L
0.16 mg/L
6.01 / 100 mL
4.46 mg/L (winter)
Number of data points
447 (summer)
302 (winter)
309
307
307
Monthly Average Permit
5.0 mg/L (summer)
30 mg/L
1.0 mg/L
35 / 100 mL
Limit
10.0 mg/L (winter)
Weekly Average Permit
7.5 mg/L (summer)
45 mg/L
3 mg/L
276 / 100 mL
Limit
15.0 mg/L (winter)
Percent of permit limit
68% (summer)
45 /o (winter)
8%
16%
17%
Number of daily samples
13 (summer)
over 200% of monthly
17 (winter)
0
0
----
average permit limit
Number of daily samples
over 200% of weekly
----
----
----
1
average permit limit
Non -monthly average
violations between
13 (summer)
0
0
1
6/1/2023 through
16 (winter)
5/31 /2024
Data in compliance with
DWR Guidance for
No
Yes
Yes
Yes
Monitoring Frequency
Reduction?
Per Division of Water Resources Guidance Regarding the Reduction of Monitoring Frequencies in NPDES Permits for
Exceptionally Performing Facilities dated October 2012.
2Analysis is representative of data from June 2021 through May 2024.
2

City of Havelock WWTP NPDES Permit Renewal Discharge Monitoring Report Data
6/1/2021to 5/31/2024
Date BODs (Summer) BODs (Winter) TSS Ammonia Enteroco
Units mg/L mg/L mg/L mg/L #/100 mL
6/1/2021
2.9
<2.5
0.23
6/2/2021
9.2
6/3/2021
<2.0
<2.5
0.5
<1
6/4/2021
3.9
6/5/2021
6/6/2021
6/7/2021
<2.0
6/8/2021
<2.0
<2.5
0.34
<1
6/9/2021
3.3
6/10/2021
3.1
<2.5
0.27
1
6/11/2021
4.8
6/12/2021
6/13/2021
6/14/2021
3
6/15/2021
2.9
<2.5
0.23
2
6/16/2021
3.1
6/17/2021
2.2
<2.5
0.23
2
6/18/2021
3.1
6/19/2021
6/20/2021
6/21/2021
3.7
6/22/2021
3
<2.5
0.18
<1
6/23/2021
2.2
6/24/2021
25
<2.5
0.15
<1
6/25/2021
4.9
6/26/2021
6/27/2021
6/28/2021
4.5
6/29/2021
3
<2.5
0.24
1
6/30/2021
2.6
7/1/2021
<2.0
<2.5
0.18
6
7/2/2021
3.2
7/3/2021
7/4/2021
7/5/2021
H
H
H
H
7/6/2021
2.9
<2.5
0.32
<1
7/7/2021
<2.0
7/8/2021
<2.0
<2.5
0.18
<1
7/9/2021
3
7/10/2021
7/11/2021
7/12/2021
<2.0
7/13/2021
<2.0
<2.5
0.23
<1
7/14/2021
<2.0
7/15/2021
<2.0
<2.5
0.18
<1
7/16/2021
<2.0
7/17/2021
7/18/2021
7/19/2021
2.8
7/20/2021
2.7
<2.5
0.12
<1
7/21/2021
<2.0
7/22/2021
2
<2.5
0.16
2
7/23/2021
2.8
7/24/2021
7/25/2021
7/26/2021
1 4

City of Havelock WWTP NPDES Permit Renewal Discharge Monitoring Report Data
6/1/2021to 5/31/2024
Date BOD5 (Summer) BODS (Winter) TSS Ammonia Enteroco
7/27/2021
4.5
<2.5
0.07
<2.5
7/28/2021
3.7
7/29/2021
2.8
<2.5
0.16
<1
7/30/2021
2.9
7/31/2021
8/1/2021
8/2/2021
7.9
8/3/2021
2.5
<2.5
0.08
1
8/4/2021
2.2
8/5/2021
3
<2.5
0.09
2
8/6/2021
2.6
8/7/2021
8/8/2021
8/9/2021
2.7
8/10/2021
<2.0
<2.5
0.11
<1
8/11/2021
<2.0
8/12/2021
<2.0
<2.5
0.1
<1
8/13/2021
2.3
8/14/2021
8/15/2021
8/16/2021
<2.0
8/17/2021
<2.0
<2.5
0.09
<1
8/18/2021
<2.0
8/19/2021
<2.0
<2.5
0.07
1
8/20/2021
<2.0
8/21/2021
8/22/2021
8/23/2021
3.4
8/24/2021
<2.0
<2.5
0.1
<1
8/25/2021
<2.0
8/26/2021
<2.0
<2.5
0.08
2
8/27/2021
2.9
8/28/2021
8/29/2021
8/30/2021
<2.0
8/31/2021
<2.0
<2.5
0.11
<1
9/1/2021
<2.0
9/2/2021
2.2
<2.5
0.07
2
9/3/2021
2.7
9/4/2021
9/5/2021
9/6/2021
H
H
H
H
9/7/2021
<2.0
<2.5
0.05
<1
9/8/2021
<2.0
9/9/2021
<2.0
<2.5
0.09
2
9/10/2021
<2.0
9/11/2021
9/12/2021
9/13/2021
<2.0
9/14/2021
<2.0
<2.5
0.09
<1
9/15/2021
2.1
9/16/2021
<2.0
<2.5
0.08
<1
9/17/2021
2.1
9/18/2021
9/19/2021
9/20/2021
2.4
9/21/2021
<2.0
<2.5
0.07
<1

City of Havelock WWTP NPDES Permit Renewal Discharge Monitoring Report Data
6/1/2021to 5/31/2024
Date BOD5 (Summer) BODS (Winter) TSS Ammonia Enteroco
9/22/2021
<2.0
9/23/2021
<2.0
<2.5
0.07
<1
9/24/2021
3.3
9/25/2021
9/26/2021
9/27/2021
3
9/28/2021
<2.0
<2.5
0.05
<1
9/29/2021
<2.0
9/30/2021
2.3
<2.5
<0.04
<1
10/1/2021
19
10/2/2021
10/3/2021
10/4/2021
2.2
10/5/2021
<2.0
<2.5
0.09
<1
10/6/2021
<2.0
10/7/2021
<2.0
<2.5
0.09
<1
10/8/2021
2.3
10/9/2021
10/10/2021
10/11/2021
8.1
10/12/2021
2.2
<2.5
<0.04
<1
10/13/2021
3.4
10/14/2021
<2.0
<2.5
0.06
<1
10/15/2021
4.5
10/16/2021
10/17/2021
10/18/2021
7.6
10/19/2021
5
<2.5
0.04
6
10/20/2021
2.4
10/21/2021
<2.0
<2.5
0.09
1
10/22/2021
3.3
10/23/2021
10/24/2021
10/25/2021
<2.0
10/26/2021
2.4
<2.5
0.1
2
10/27/2021
<2.0
10/28/2021
2.8
<2.5
0.1
1
10/29/2021
<2.0
10/30/2021
10/31/2021
11/1/2021
<2.0
11/2/2021
4.7
<2.5
0.05
3
11/3/2021
3.2
11/4/2021
<2.0
<2.5
0.15
2
11/5/2021
<2.0
11/6/2021
11/7/2021
11/8/2021
11
11/9/2021
2.5
<2.5
0.05
<1
11/10/2021
3.4
11/11/2021
H
H
H
H
11/12/2021
H
H
H
H
11/13/2021
11/14/2021
11/15/2021
2.6
11/16/2021
10
<2.5
0.11
<1
11/17/2021
<2.0

City of Havelock WWTP NPDES Permit Renewal Discharge Monitoring Report Data
6/1/2021to 5/31/2024
Date BOD5 (Summer) BODS (Winter) TSS Ammonia Enteroco
11/18/2021
<2.0
<2.5
0.12
2
11/19/2021
8.1
11/20/2021
11/21/2021
11/22/2021
6.9
11/23/2021
<2.0
<2.5
0.1
<1
11/24/2021
2.3
11/25/2021
H
H
H
H
11/26/2021
H
H
H
H
11/27/2021
11/28/2021
11/29/2021
5.3
11/30/2021
2.9
<2.5
0.19
<1
12/1/2021
5.1
12/2/2021
2.3
<2.5
0.13
<1
12/3/2021
5.9
12/4/2021
12/5/2021
12/6/2021
<2.0
12/7/2021
3.3
<2.5
0.24
1
12/8/2021
<2.0
12/9/2021
4.3
<2.5
0.09
10
12/10/2021
2.1
12/11/2021
12/12/2021
12/13/2021
<2.0
12/14/2021
2.2
<2.5
0.11
1
12/15/2021
<2.0
12/16/2021
<2.0
<2.5
0.16
2
12/17/2021
<2.0
12/18/2021
12/19/2021
12/20/2021
4.3
12/21/2021
2.3
<2.5
0.12
1
12/22/2021
3.3
12/23/2021
H
H
H
H
12/24/2021
H
H
H
H
12/25/2021
12/26/2021
12/27/2021
H
H
H
H
12/28/2021
2.7
<2.5
0.1
5
12/29/2021
<2.0
12/30/2021
<2.0
<2.5
0.15
<1
12/31/2021
1/1/2022
1/2/2022
1/3/2022
<2.0
1/4/2022
3.7
<2.5
0.87
<1
1/5/2022
2.5
1/6/2022
3.4
<2.5
0.18
1
1/7/2022
<2.0
1/8/2022
1/9/2022
1/10/2022
8.2
1/11/2022
<2.0
<2.5
0.06
<1
1/12/2022
<2.0
1/13/2022
3.2
<2.5
0.07
<1

City of Havelock WWTP NPDES Permit Renewal Discharge Monitoring Report Data
6/1/2021to 5/31/2024
Date BOD5 (Summer) BODS (Winter) TSS Ammonia Enteroco
1/14/2022
4.8
1/15/2022
1/16/2022
1/17/2022
H
H
H
H
1/18/2022
<2.0
<2.5
<.04
1
1/19/2022
<2.0
1/20/2022
<2.0
<2.5
0.12
1
1/21/2022
3.1
1/22/2022
1/23/2022
1/24/2022
<2.0
1/25/2022
<2.0
<2.5
0.13
<1
1/26/2022
<2.0
1/27/2022
2.3
<2.5
0.11
<1
1/28/2022
<2.0
1/29/2022
1/30/2022
1/31/2022
<2.0
2/1/2022
<2.0
<2.5
0.12
<1
2/2/2022
<2.0
2/3/2022
<2.0
<2.5
0.25
<1.0
2/4/2022
<2.0
2/5/2022
2/6/2022
2/7/2022
3.2
2/8/2022
2.9
<2.5
0.13
<1
2/9/2022
2.4
2/10/2022
4.2
<2.5
0.16
<1
2/11/2022
3.6
2/12/2022
2/13/2022
2/14/2022
3.8
2/15/2022
3
<2.5
0.13
<1
2/16/2022
5.8
2/17/2022
3.3
<2.5
0.18
<1
2/18/2022
5.4
2/19/2022
2/20/2022
2/21/2022
4.5
2/22/2022
6.4
<2.5
0.18
<1
2/23/2022
3.3
2/24/2022
<2.0
<2.5
0.25
2
2/25/2022
3.7
2/26/2022
2/27/2022
2/28/2022
<2.0
3/1/2022
2.4
<2.5
0.3
1
3/2/2022
3
3/3/2022
2.7
<2.5
0.23
3
3/4/2022
2.9
3/5/2022
3/6/2022
3/7/2022
<2.0
3/8/2022
<2.0
<2.5
0.31
<1
3/9/2022
2.1
3/10/2022
<2.0
3.3
0.26
1
3/11/2022
<2.0

City of Havelock WWTP NPDES Permit Renewal Discharge Monitoring Report Data
6/1/2021to 5/31/2024
Date BOD5 (Summer) BODS (Winter) TSS Ammonia Enteroco
3/12/2022
3/13/2022
3/14/2022
2.4
3/15/2022
2.3
<2.5
0.16
<1
3/16/2022
<2.0
3/17/2022
2.2
<2.5
0.18
1
3/18/2022
2.2
3/19/2022
3/20/2022
3/21/2022
3.6
3/22/2022
<2.0
<2.5
0.19
<1
3/23/2022
2.5
3/24/2022
2.2
<2.5
0.22
1
3/25/2022
3.4
3/26/2022
3/27/2022
3/28/2022
<2.0
3/29/2022
4.6
<2.5
0.13
<1
3/30/2022
2.4
3/31/2022
<2.0
<2.5
0.2
1
4/1/2022
3.3
4/2/2022
4/3/2022
4/4/2022
7.2
4/5/2022
<2.0
<2.5
0.17
<1
4/6/2022
<2.0
4/7/2022
26
4/8/2022
<2.0
<2.5
0.3
14
4/9/2022
4/10/2022
4/11/2022
3
4/12/2022
2.4
<2.5
0.2
8
4/13/2022
<2.0
4/14/2022
<2.0
<2.5
0.69
13
4/15/2022
H
H
H
H
4/16/2022
4/17/2022
4/18/2022
<2.0
4/19/2022
2.8
<2.5
0.18
4
4/20/2022
<2.0
4/21/2022
2.8
<2.5
0.18
<1
4/22/2022
<2.0
4/23/2022
4/24/2022
4/25/2022
<2.0
4/26/2022
2.8
<2.5
0.21
<1
4/27/2022
<2.0
4/28/2022
<2.0
<2.5
0.19
<1
4/29/2022
2.2
4/30/2022
5/1/2022
5/2/2022
<2.0
5/3/2022
<2.0
<2.5
0.2
<1
5/4/2022
<2.0
5/5/2022
2.4
<2.5
0.68
4
5/6/2022
<2.0
5/7/2022

City of Havelock WWTP NPDES Permit Renewal Discharge Monitoring Report Data
6/1/2021to 5/31/2024
Date BOD5 (Summer) BODS (Winter) TSS Ammonia Enteroco
5/8/2022
5/9/2022
2.1
5/10/2022
<2.0
<2.5
0.11
45
5/11/2022
<2.0
5/12/2022
3.3
<2.5
0.18
1
5/13/2022
<2.0
5/14/2022
5/15/2022
5/16/2022
<2.0
5/17/2022
5.3
<2.5
0.17
5/18/2022
<2.0
5/19/2022
4.4
<2.5
0.19
1
5/20/2022
<2.0
5/21/2022
5/22/2022
5/23/2022
<2.0
5/24/2022
<2.0
<2.5
0.21
<1
5/25/2022
<2.0
5/26/2022
2.8
<2.5
0.16
<1
5/27/2022
5
5/28/2022
5/29/2022
5/30/2022
H
H
H
H
5/31/2022
<2.0
<2.5
0.18
<1
6/1/2022
<2.0
6/2/2022
<2.0
<2.5
0.25
1
6/3/2022
5.5
6/4/2022
6/5/2022
6/6/2022
2.4
6/7/2022
<2.0
<2.5
0.21
1
6/8/2022
<2.0
6/9/2022
<2.0
<2.5
0.23
2
6/10/2022
<2.0
6/11/2022
6/12/2022
6/13/2022
3.6
6/14/2022
<2.0
<2.5
0.35
1
6/15/2022
2
6/16/2022
<2.0
<2.5
0.22
<1
6/17/2022
<2.0
6/18/2022
6/19/2022
6/20/2022
<2.0
6/21/2022
<2.0
<2.5
0.09
<1
6/22/2022
<2.0
6/23/2022
<2.0
<2.5
0.11
<1
6/24/2022
<2.0
6/25/2022
6/26/2022
6/27/2022
<2.0
6/28/2022
<2.0
<2.5
0.14
<1
6/29/2022
2.8
6/30/2022
<2.0
<2.5
0.12
<1
7/1/2022
7.9
7/2/2022
7/3/2022

City of Havelock WWTP NPDES Permit Renewal Discharge Monitoring Report Data
6/1/2021to 5/31/2024
Date BOD5 (Summer) BODS (Winter) TSS Ammonia Enteroco
7/4/2022
H
H
H
H
7/5/2022
<2.0
<2.5
0.1
<1
7/6/2022
<2.0
7/7/2022
<2.0
<2.5
0.15
1
7/8/2022
5.9
7/9/2022
7/10/2022
7/11/2022
<2.0
7/12/2022
<2.0
<2.5
0.09
<1
7/13/2022
<2.0
7/14/2022
<2.0
<2.5
0.1
<1
7/15/2022
<2.0
7/16/2022
7/17/2022
7/18/2022
<2.0
7/19/2022
<2.0
<2.5
0.12
1
7/20/2022
<2.0
7/21/2022
<2.0
<2.5
0.12
<1
7/22/2022
5
7/23/2022
7/24/2022
7/25/2022
<2.0
7/26/2022
<2.0
<2.5
0.05
2
7/27/2022
<2.0
7/28/2022
<2.0
<2.5
0.09
1
7/29/2022
<2.0
7/30/2022
7/31/2022
8/1/2022
5.4
8/2/2022
<2.0
<2.5
0.1
<1
8/3/2022
<2.0
8/4/2022
<2.0
<2.5
0.13
1
8/5/2022
<2.0
8/6/2022
8/7/2022
8/8/2022
2.5
8/9/2022
<2.0
<2.5
0.1
1
8/10/2022
<2.0
8/11/2022
<2.0
<2.5
0.11
<1
8/12/2022
6.6
8/13/2022
8/14/2022
8/15/2022
<2.0
8/16/2022
<2.0
<2.5
0.12
6
8/17/2022
<2.0
8/18/2022
<2.0
<2.5
0.11
1
8/19/2022
<2.0
8/20/2022
8/21/2022
8/22/2022
<2.0
8/23/2022
<2.0
<2.5
0.07
<1
8/24/2022
<2.0
8/25/2022
<2.0
<2.5
0.11
<1
8/26/2022
<2.0
8/27/2022
8/28/2022
8/29/2022
<2.0

City of Havelock WWTP NPDES Permit Renewal Discharge Monitoring Report Data
6/1/2021to 5/31/2024
Date BOD5 (Summer) BODS (Winter) TSS Ammonia Enteroco
8/30/2022
<2.0
<2.5
0.14
<1
8/31/2022
2.4
9/1/2022
<2.0
<2.5
0.1
1
9/2/2022
2.9
9/3/2022
9/4/2022
9/5/2022
H
H
H
H
9/6/2022
4
<2.5
0.09
1
9/7/2022
7.1
9/8/2022
<2.0
<2.5
0.13
2
9/9/2022
<2.0
9/10/2022
9/11/2022
9/12/2022
<2.0
9/13/2022
<2.0
<2.5
0.1
3
9/14/2022
<2.0
9/15/2022
<2.0
<2.5
0.14
<1
9/16/2022
<2.0
9/17/2022
9/18/2022
9/19/2022
2.3
9/20/2022
<2.0
<2.5
0.08
<1
9/21/2022
<2.0
9/22/2022
<2.0
<2.5
0.15
2
9/23/2022
<2.0
9/24/2022
9/25/2022
9/26/2022
<2.0
9/27/2022
4.9
<2.5
0.12
<1
9/28/2022
<2.0
9/29/2022
<2.0
<2.5
0.05
<1
9/30/2022
4.1
10/1/2022
10/2/2022
10/3/2022
<2.0
10/4/2022
<2.0
<2.5
0.06
<1
10/5/2022
<2.0
10/6/2022
<2.0
<2.5
0.11
1
10/7/2022
<2.0
10/8/2022
10/9/2022
10/10/2022
2.2
10/11/2022
3.7
4.2
0.04
<1
10/12/2022
<2.0
10/13/2022
3.3
<2.5
0.13
<1
10/14/2022
<2.0
10/15/2022
10/16/2022
10/17/2022
<2.0
10/18/2022
<2.0
<2.5
0.07
<1
10/19/2022
4.1
10/20/2022
<2.0
<2.5
<0.04
<1
10/21/2022
2.4
10/22/2022
10/23/2022
10/24/2022
<2.0
10/25/2022
16
<2.5
<0.04
1

City of Havelock WWTP NPDES Permit Renewal Discharge Monitoring Report Data
6/1/2021to 5/31/2024
Date BOD5 (Summer) BODS (Winter) TSS Ammonia Enteroco
10/26/2022
<2.0
10/27/2022
<2.0
<2.5
0.08
<1
10/28/2022
<2.0
10/29/2022
10/30/2022
10/31/2022
8.3
11/1/2022
<2.0
<2.5
0.12
<1
11/2/2022
<2.0
11/3/2022
3.2
<2.5
0.14
<1
11/4/2022
<2.0
11/5/2022
11/6/2022
11/7/2022
2.2
11/8/2022
<2.0
<2.5
0.12
<1
11/9/2022
<2.0
11/10/2022
2.5
<2.5
0.06
<1
11/11/2022
H
H
H
H
11/12/2022
11/13/2022
11/14/2022
<2.0
11/15/2022
<2.0
<2.5
0.06
<1
11/16/2022
<2.0
11/17/2022
<2.0
<2.0
0.06
<1
11/18/2022
2.8
11/19/2022
11/20/2022
11/21/2022
6
11/22/2022
2.3
<2.5
0.09
<1
11/23/2022
3.1
11/24/2022
H
H
H
H
11/25/2022
H
H
H
H
11/26/2022
11/27/2022
11/28/2022
3.3
11/29/2022
<2.0
<2.5
0.1
3
11/30/2022
<2.0
12/1/2022
2.1
<2.5
0.18
<1
12/2/2022
<2.0
12/3/2022
12/4/2022
12/5/2022
2.1
12/6/2022
<2.0
<2.5
0.19
<1
12/7/2022
<2.0
12/8/2022
3.1
<2.5
0.14
1
12/9/2022
2.6
12/10/2022
12/11/2022
12/12/2022
4.6
12/13/2022
<2.0
<2.5
0.07
<1
12/14/2022
<2.0
12/15/2022
4.3
<2.5
<.04
<1
12/16/2022
5.3
12/17/2022
12/18/2022
12/19/2022
03.0
12/20/2022
05.3
<2.5
0.06
<1
12/21/2022
5.9

City of Havelock WWTP NPDES Permit Renewal Discharge Monitoring Report Data
6/1/2021to 5/31/2024
Date BOD5 (Summer) BODS (Winter) TSS Ammonia Enteroco
12/22/2022
7
<2.5
0.08
1
12/23/2022
H
H
H
H
12/24/2022
12/25/2022
12/26/2022
H
H
H
H
12/27/2022
3.8
4
0.09
3
12/28/2022
<2.0
12/29/2022
<2.0
<2.5
0.05
<1
12/30/2022
2.7
12/31/2022
H
H
H
H
1/1/2023
H
H
H
H
1/2/2023
H
H
H
H
1/3/2023
2.2
<2.5
0.1
1
1/4/2023
3.8
1/5/2023
3.8
<2.5
0.18
<1
1/6/2023
3.8
1/7/2023
1/8/2023
1/9/2023
<2.0
1/10/2023
<2.0
<2.5
0.11
<1
1/11/2023
2.3
1/12/2023
<2.0
<2.5
0.14
9
1/13/2023
3.4
1/14/2023
1/15/2023
1/16/2023
H
H
H
H
1/17/2023
2.4
<2.5
2
1/18/2023
2.8
1/19/2023
<2.0
<2.5
0.18
1
1/20/2023
<2.0
1/21/2023
0.13
1/22/2023
1/23/2023
5
1/24/2023
<2.0
<2.5
0.13
2
1/25/2023
2.6
1/26/2023
2.5
<2.5
0.13
1
1/27/2023
7.6
1/28/2023
1/29/2023
1/30/2023
<2.0
1/31/2023
<2.0
<2.5
0.09
1
2/1/2023
<2.0
2/2/2023
<2.0
<2.5
0.05
1
2/3/2023
2.4
2/4/2023
2/5/2023
2/6/2023
<2.0
2/7/2023
5.1
<2.5
0.13
<1
2/8/2023
<2.0
2/9/2023
<2.0
<2.5
0.14
<1
2/10/2023
3.5
2/11/2023
2/12/2023
2/13/2023
3.8
2/14/2023
<2.0
<2.5
0.17
<1
2/15/2023
<2.0
2/16/2023
<2.0
<2.5
0.18
4

City of Havelock WWTP NPDES Permit Renewal Discharge Monitoring Report Data
6/1/2021to 5/31/2024
Date BOD5 (Summer) BODS (Winter) TSS Ammonia Enteroco
2/17/2023
3.1
2/18/2023
2/19/2023
2/20/2023
<2.0
2/21/2023
<2.0
<2.5
0.19
<1
2/22/2023
<2.0
2/23/2023
3.3
<2.5
0.5
<1
2/24/2023
<2.0
2/25/2023
2/26/2023
2/27/2023
<2.0
2/28/2023
<2.0
<2.5
0.17
<1
3/1/2023
<2.0
3/2/2023
<2.0
<2.5
0.28
<1
3/3/2023
<2.0
3/4/2023
3/5/2023
3/6/2023
2.3
3/7/2023
2.2
<2.5
0.25
<1
3/8/2023
2.3
3/9/2023
<2.0
<2.5
0.15
2
3/10/2023
4
3/11/2023
3/12/2023
3/13/2023
3.7
3/14/2023
3.3
<2.5
0.2
<1
3/15/2023
>26
3/16/2023
2.1
<2.5
0.28
5
3/17/2023
<2.0
3/18/2023
3/19/2023
3/20/2023
<2.0
3/21/2023
<2.0
<2.5
0.12
1
3/22/2023
<2.0
3/23/2023
2.1
<2.5
0.19
6
3/24/2023
4.5
3/25/2023
3/26/2023
3/27/2023
3
3/28/2023
3.7
<2.5
0.14
1
3/29/2023
4.1
3/30/2023
3
<2.5
0.26
4
3/31/2023
3.1
4/1/2023
4/2/2023
4/3/2023
2.6
4/4/2023
3.3
<2.5
0.22
<1
4/5/2023
2.3
4/6/2023
<2.0
<2.5
0.51
<1
4/7/2023
H
H
H
H
4/8/2023
4/9/2023
4/10/2023
2.3
4/11/2023
5
<2.5
0.08
<1
4/12/2023
4
4/13/2023
4.3
<2.5
0.12
1
4/14/2023
3.6

City of Havelock WWTP NPDES Permit Renewal Discharge Monitoring Report Data
6/1/2021to 5/31/2024
Date BOD5 (Summer) BODS (Winter) TSS Ammonia Enteroco
4/15/2023
4/16/2023
4/17/2023
2.4
4/18/2023
2.8
<2.5
0.15
<1
4/19/2023
4.4
4/20/2023
2.5
<2.5
0.25
<1
4/21/2023
2.2
4/22/2023
4/23/2023
4/24/2023
9.7
4/25/2023
<2.0
<2.5
1
4/26/2023
13
4/27/2023
5.8
<2.5
0.31
11
4/28/2023
4.7
4/29/2023
4/30/2023
5/1/2023
2.3
5/2/2023
3.9
<2.5
0.08
1
5/3/2023
9.8
5/4/2023
<2.0
<2.5
0.29
5
5/5/2023
4.2
5/6/2023
5/7/2023
5/8/2023
2.6
5/9/2023
<2.0
<2.5
0.24
<1
5/10/2023
8.1
5/11/2023
2.8
<2.5
0.2
<1
5/12/2023
<2.0
5/13/2023
5/14/2023
5/15/2023
7
5/16/2023
2.9
<2.5
0.18
<1
5/17/2023
7.6
5/18/2023
<2.0
<2.5
0.23
<1
5/19/2023
2
5/20/2023
5/21/2023
5/22/2023
<2.0
5/23/2023
<2.0
<2.5
0.3
4
5/24/2023
<2.0
5/25/2023
<2.0
<2.5
0.1
1
5/26/2023
<2.0
5/27/2023
5/28/2023
5/29/2023
H
H
H
H
5/30/2023
<2.0
<2.5
0.31
<1
5/31/2023
<2.0
6/1/2023
<2.0
<2.5
0.17
<1
6/2/2023
<2.0
6/3/2023
6/4/2023
6/5/2023
5.4
6/6/2023
10
<2.5
0.12
1
6/7/2023
3.7
6/8/2023
<2.0
<2.5
0.87
<1
6/9/2023
1 <2.0
6/10/2023

City of Havelock WWTP NPDES Permit Renewal Discharge Monitoring Report Data
6/1/2021to 5/31/2024
Date BOD5 (Summer) BODS (Winter) TSS Ammonia Enteroco
6/11/2023
6/12/2023
<2.0
6/13/2023
4.3
<2.5
<0.04
1
6/14/2023
3.9
6/15/2023
2.6
<2.5
0.21
<1
6/16/2023
<2.0
6/17/2023
6/18/2023
6/19/2023
<2.0
6/20/2023
7.9
<2.5
0.19
<1
6/21/2023
<2.0
6/22/2023
3.7
<2.5
0.24
<1
6/23/2023
<2.0
6/24/2023
6/25/2023
6/26/2023
4
6/27/2023
<2.0
<2.5
0.93
<1
6/28/2023
<2.0
6/29/2023
<2.0
<2.5
0.21
<1
6/30/2023
<2.0
7/1/2023
7/2/2023
7/3/2023
2.3
H
H
H
7/4/2023
H
H
H
H
7/5/2023
3.1
7/6/2023
<2.0
<2.5
0.11
<1
7/7/2023
<2.0
7/8/2023
7/9/2023
7/10/2023
2.1
7/11/2023
<2.0
<2.5
0.52
<1
7/12/2023
2.2
7/13/2023
<2.0
<2.5
0.07
<1
7/14/2023
3.8
7/15/2023
7/16/2023
7/17/2023
6.3
7/18/2023
3.2
<2.5
0.07
7/19/2023
3.3
<1
7/20/2023
3.6
<2.5
0.10
<1
7/21/2023
4.2
7/22/2023
7/23/2023
7/24/2023
4.1
7/25/2023
2.6
<2.5
0.15
<1
7/26/2023
3.3
7/27/2023
4.5
<2.5
0.11
<1
7/28/2023
2.6
7/29/2023
7/30/2023
7/31/2023
3.7
8/1/2023
3
<2.5
0.63
<1
8/2/2023
5.6
8/3/2023
3.8
<2.5
0.08
<1
8/4/2023
2.8
8/5/2023
8/6/2023

City of Havelock WWTP NPDES Permit Renewal Discharge Monitoring Report Data
6/1/2021to 5/31/2024
Date BOD5 (Summer) BODS (Winter) TSS Ammonia Enteroco
8/7/2023
2.5
8/8/2023
3.1
<2.5
0.1
<1
8/9/2023
2.1
8/10/2023
3.5
<2.5
0.33
<1
8/11/2023
3.3
8/12/2023
8/13/2023
8/14/2023
8.1
8/15/2023
12
<2.5
0.47
<1
8/16/2023
8.1
8/17/2023
2.9
<2.5
0.2
<1
8/18/2023
5.5
8/19/2023
8/20/2023
8/21/2023
2.5
8/22/2023
2.6
<2.5
<0.04
3
8/23/2023
<2.0
8/24/2023
2.2
<2.5
0.08
<1
8/25/2023
3.2
8/26/2023
8/27/2023
8/28/2023
6.7
8/29/2023
3.1
<2.5
0.1
<1
8/30/2023
4
8/31/2023
<2.0
<2.5
0.13
1300
9/1/2023
<2.0
9/2/2023
9/3/2023
9/4/2023
H
H
H
H
9/5/2023
<2.0
<2.5
0.76
1
9/6/2023
<2.0
9/7/2023
3.1
<2.5
0.26
1
9/8/2023
<2.0
9/9/2023
9/10/2023
9/11/2023
2.4
9/12/2023
<2.0
<2.5
0.13
1
9/13/2023
<2.0
9/14/2023
<2.0
<2.5
0.21
<1
9/15/2023
<2.0
9/16/2023
9/17/2023
9/18/2023
5.9
9/19/2023
<2.0
<2.5
0.07
<1
9/20/2023
<2.0
9/21/2023
<2.0
<2.5
0.13
<1
9/22/2023
<2.0
9/23/2023
9/24/2023
9/25/2023
<2.0
9/26/2023
<2.0
<2.5
0.07
2
9/27/2023
<2.0
9/28/2023
<2.0
<2.5
0.18
<1
9/29/2023
<2.0
9/30/2023
10/1/2023
10/2/2023
<2.0

City of Havelock WWTP NPDES Permit Renewal Discharge Monitoring Report Data
6/1/2021to 5/31/2024
Date BOD5 (Summer) BODS (Winter) TSS Ammonia Enteroco
10/3/2023
<2.0
<2.5
0.08
<1
10/4/2023
<2.0
10/5/2023
<2.0
<2.5
0.2
1
10/6/2023
2.1
10/7/2023
10/8/2023
10/9/2023
4.5
10/10/2023
4.8
<2.5
0.32
<1
10/11/2023
<2.0
10/12/2023
2.4
<2.5
0.23
<1
10/13/2023
<2.0
10/14/2023
10/15/2023
10/16/2023
7
10/17/2023
<2.0
<2.5
0.05
<1
10/18/2023
2.2
10/19/2023
5.1
<2.5
0.22
<1
10/20/2023
4.4
10/21/2023
10/22/2023
10/23/2023
4.4
10/24/2023
8.9
<2.5
0.32
<1
10/25/2023
2.7
10/26/2023
<2.0
<2.5
0.27
1
10/27/2023
<2.0
10/28/2023
10/29/2023
10/30/2023
3
10/31/2023
<2.0
<2.5
0.36
<1
11/1/2023
<2.0
11/2/2023
3.3
<2.5
0.47
1
11/3/2023
2.9
11/4/2023
11/5/2023
11/6/2023
<2.0
11/7/2023
<2.0
<2.5
0.12
<1
11/8/2023
<2.0
11/9/2023
<2.0
<2.5
0.06
<1
11/10/2023
H
H
H
H
11/11/2023
11/12/2023
11/13/2023
<2.0
11/14/2023
<2.0
<2.5
0.22
<1
11/15/2023
2.3
11/16/2023
3.6
<2.5
0.11
<1
11/17/2023
2.3
11/18/2023
11/19/2023
11/20/2023
2.4
<2.5
0.11
<1
11/21/2023
2.0
11/22/2023
<2.0
<2.5
0.1
<1
11/23/2023
H
H
H
H
11/24/2023
H
H
H
H
11/25/2023
11/26/2023
11/27/2023
1
2.2
11/28/2023
114
<2.5
1 0.07
1<1

City of Havelock WWTP NPDES Permit Renewal Discharge Monitoring Report Data
6/1/2021to 5/31/2024
Date BOD5 (Summer) BODS (Winter) TSS Ammonia Enteroco
11/29/2023
5.1
11/30/2023
8.6
<2.5
0.16
<1
12/1/2023
2
12/2/2023
12/3/2023
12/4/2023
2.3
12/5/2023
6.3
<2.5
0.11
<1
12/6/2023
3.5
12/7/2023
2.9
<2.5
0.09
<1
12/8/2023
4.1
12/9/2023
12/10/2023
12/11/2023
3.0
12/12/2023
<2.0
<2.5
0.10
1
12/13/2023
2.6
12/14/2023
3
<2.5
<0.04
<1
12/15/2023
3
12/16/2023
12/17/2023
12/18/2023
6.6
12/19/2023
2.4
<2.5
0.13
1
12/20/2023
2.5
12/21/2023
2.6
<2.5
0.14
<1
12/22/2023
4.2
12/23/2023
12/24/2023
12/25/2023
H
H
H
H
12/26/2023
H
H
H
H
12/27/2023
4.7
<2.5
0.22
1
12/28/2023
11
12/29/2023
<2.0
<2.5
0.07
2
12/30/2023
12/31/2023
1/1/2024
H
H
H
H
1/2/2024
<2.0
<2.5
0.08
<1
1/3/2024
2.6
1/4/2024
3.9
<2.5
0.07
<1
1/5/2024
3.4
1/6/2024
1/7/2024
1/8/2024
3.5
1/9/2024
2.9
<2.5
0.14
<1
1/10/2024
2
1/11/2024
<2.0
<2.5
0.25
<1
1/12/2024
<2.0
1/13/2024
1/14/2024
1/15/2024
H
H
H
H
1/16/2024
4.2
2.5
0.18
<1
1/17/2024
<2.0
1/18/2024
<2.0
<2.5
0.06
<1
1/19/2024
<2.0
1/20/2024
1/21/2024
1/22/2024
<2.0
1/23/2024
<2.0
<2.5
0.21
<1
1/24/2024
<2.0

City of Havelock WWTP NPDES Permit Renewal Discharge Monitoring Report Data
6/1/2021to 5/31/2024
Date BOD5 (Summer) BODS (Winter) TSS Ammonia Enteroco
1/25/2024
<2.0
<2.5
0.08
<1
1/26/2024
<2.0
1/27/2024
1/28/2024
1/29/2024
<2.0
1/30/2024
<2.0
0.00
1/31/2024
<2.0
<2.5
0.06
<1
2/1/2024
<2.0
<2.5
<0.04
<1
2/2/2024
<2.0
2/3/2024
2/4/2024
2/5/2024
3.6
2/6/2024
<2.0
<2.5
<0.04
<1
2/7/2024
<2.0
2/8/2024
<2.0
<2.5
0.08
<1
2/9/2024
<2.0
2/10/2024
2/11/2024
2/12/2024
<2.0
2/13/2024
<2.0
<2.5
<0.04
<1
2/14/2024
<2.0
2/15/2024
<2.0
<2.5
0.13
<1
2/16/2024
<2.0
2/17/2024
2/18/2024
2/19/2024
<2.0
2/20/2024
2
<2.5
0.07
<1
2/21/2024
<2.0
2/22/2024
<2.0
<2.5
0.05
<1
2/23/2024
26
2/24/2024
2/25/2024
2/26/2024
2
2/27/2024
>27
<2.5
0.17
<1
2/28/2024
>65
2/29/2024
>27
<2.5
0.20
<1
3/1/2024
>26
3/2/2024
3/3/2024
3/4/2024
2.6
3/5/2024
<2.0
<2.5
0.08
<1
3/6/2024
3.9
3/7/2024
2.1
<2.5
0.07
2
3/8/2024
<2.0
3/9/2024
3/10/2024
3/11/2024
>25
3/12/2024
23
<2.5
0.15
15
3/13/2024
28
3/14/2024
30
<2.5
0.05
40
3/15/2024
>25
3/16/2024
3/17/2024
3/18/2024
<2.0
3/19/2024
<2.0
<2.5
0.16
1
3/20/2024
2.1
3/21/2024
45
<2.5
0.04
<1

City of Havelock WWTP NPDES Permit Renewal Discharge Monitoring Report Data
6/1/2021to 5/31/2024
Date BOD5 (Summer) BODS (Winter) TSS Ammonia Enteroco
3/22/2024
39
3/23/2024
3/24/2024
3/25/2024
25
3/26/2024
24
<2.5
<0.04
<1
3/27/2024
31
3/28/2024
>26
<2.5
<0.04
1
3/29/2024
H
H
H
H
3/30/2024
3/31/2024
4/1/2024
25
4/2/2024
31
<2.5
<0.04
<1
4/3/2024
27
4/4/2024
33
<2.5
<0.04
<1
4/5/2024
25
4/6/2024
4/7/2024
4/8/2024
23
4/9/2024
4
<2.5
0.49
<1
4/10/2024
2.8
4/11/2024
3.8
<2.5
0.5
<1
4/12/2024
2.3
4/13/2024
4/14/2024
4/15/2024
<2.0
4/16/2024
<2.0
<2.5
0.26
<1
4/17/2024
<2.0
4/18/2024
<2.0
<2.5
0.22
<1
4/19/2024
2.3
4/20/2024
4/21/2024
4/22/2024
<2.0
4/23/2024
<2.0
<2.5
0.07
<1
4/24/2024
2
4/25/2024
2.6
<2.5
0.07
<1
4/26/2024
3.8
4/27/2024
4/28/2024
4/29/2024
<2.0
4/30/2024
<2.0
<2.5
0.08
<1
5/1/2024
2.5
5/2/2024
2.2
<2.5
0.07
<1
5/3/2024
<2.0
5/4/2024
5/5/2024
5/6/2024
2.2
5/7/2024
3
<2.5
0.32
<1
5/8/2024
<2.0
5/9/2024
6.4
<2.5
0.17
<1
5/10/2024
6.4
5/11/2024
5/12/2024
5/13/2024
2.1
5/14/2024
2
<2.5
0.05
<1
5/15/2024
2.2
5/16/2024
2.7
<2.5
<0.04
<1
5/17/2024
<2.0

City of Havelock WWTP NPDES Permit Renewal Discharge Monitoring Report Data
6/1/2021to 5/31/2024
Date BOD5 (Summer) BODS (Winter) TSS Ammonia Enteroco
5/18/2024
5/19/2024
5/20/2024
<2.0
5/21/2024
<2.0
<2.5
0.07
1
5/22/2024
16
5/23/2024
2.9
<2.5
0.13
<1
5/24/2024
<2.0
5/25/2024
5/26/2024
5/27/2024
H
H
H
H
5/28/2024
4.4
5/29/2024
2.1
<2.5
0.12
<1
5/30/2024
3
5/31/2024
4
<2.5
0.08
1
Calculations for the City of Havelock WWTP Effluent Data for Monitoring Frequency Reduction Analysis
Date BOD5 (Summer) BOD5 (Winter) TSS NH3 N Enteroco
Units
mg/L
mg/L
mg/L
mg/L
#/100 mL
Maximum
33
65
4.2
0.93
1300
3-year average
3.41
4.46
2.51
0.16
6.01
No. data points
447
302
309
307
307
Monthly Average Permit Limit
5
10
30
1
35
200% of Monthly Average Permit
Limit
10
20
60
2
Avg % of Permit Limit
68%
45%
8%
16%
17%
Sampling Results > 200% of
Monthly Permit Limit
13
17
0
0
Weekly Average Permit Limit
7.5
15
45
3
276
200% of Weekly Average Permit
Limit
552
Sampling Results > 200% of
Weekly Permit Limit
1
Non -monthly average violations
in previous year WEEKLY
13
16
0
0
1

RE: Havelock draft permit in Public Notice
Nicholson, Molly <[e-mail]>
Wed 9/4/2024 12:44 PM
To:Perlmutter, Gary <[e-mail]>
Cc:Moore, Cindy <[e-mail]>
Hi Gary,
This permit looks good as well. My only note is that the second species section refers to section A.(7.) instead of A.(5.) Thanks!
(c.) 2'4-S ecies TogAq Tesdag and Reportin
(i_) In addition to the quarterly toxicity tests required in Condition k(7.) CHRONIC TOXICITY
PERMIT LIMIT, the Permittee shall perform and report the results of four (4) toxicity tests
using the same test methods using a second species of test organism suitable to the tests being
conducted.
Best,
Molly Nicholson
Environmental Specialist II - Compliance and Enforcement
Aquatic Toxicology Branch
N.C. Division of Water Resources - Water Sciences Section
N.C. Department of Environmental Quality
[e-mail]
919-743-8424 Office
1621 Mail Service Center, Raleigh, NC 27699-1623
Submit AT Forms electronically to: [e-mail]
From: Perlmutter, Gary <[e-mail]>
Sent: Friday, August 23, 2024 11:22 AM
To: May, David <[e-mail]>; Talbott, Jeffrey <[e-mail]>; Hill, Tammy <[e-mail]>; Moore,
Cindy <[e-mail]>; Nicholson, Molly <[e-mail]>; [e-mail]; Rodney George
<rgeorge@ havelocknc. us>
Cc: Montebello, Michael J <[e-mail]>
Subject: Havelock draft permit in Public Notice
Dear everyone,
I hope this email finds you well. The draft permit for the City of Havelock — Havelock WWTP (NC0021253) has been sent to Public
Notice for a 30-day comment period. Below are links to relevant documents:
Permit and cover letter: httpa.//edocs.deq.nc.gov/WaterResources/DocView.aspx?id=3432944&dbid=0&repo=WaterResources
Fact Sheet: httpai//edocs.deq.nc.gov/WaterResources/DocView.aspx?id=3438759&dbid=0&repo=WaterResources
I look forward to any comments or questions you may have.
Sincerely,
Gary Perlmutter
Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized state official.

104 Outlook
[External] Havelock WWTP Permit Renewal
From Samantha Krop <[e-mail]>
Date Mon 9/16/2024 2:55 PM
To Perlmutter, Gary <[e-mail]>
You don't often get email from [e-mail]. Learn why this is important
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Dear Gary,
I am reviewing the city of Havelock's application for their NPDES WWTP permit renewal ( Permit
#0021253)) and had a question that I am hoping you can answer for me. I see that the permit draft is
for a phased expansion from 2.25MGD to eventually 3.5MGD, but the associated Fact Sheet does not
have the "renewal with expansion" box ticked. Can you help me to understand this?
I also wanted to check to verify that I am signed up for the DWR's notification process for NPDES
permits in the Neuse basin. I thought that I had signed up for this, but I did not receive a notification
about this permit renewal. I wonder if you could help me ensure that this email is on the right DWR
NPDES permitting notification list.
Thank you,
Samantha Krop
Neuse Riverkeeper and Director of Advocacy
Sound Rivers, Inc.
samanthaCd)soundrivers. org
919-856-1180
www.soundrivers.org
Join our email Mailing List

104 Outlook
[External] Cascade Aerator
From Rodney George <[e-mail]>
Date Wed 9/11/2024 8:39 AM
To Perlmutter, Gary <[e-mail]>
D 4 attachments (29 MB)
1000008767jpg;1000008768jpg;1000008770jpg;1000008771jpg;
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Message button located on your Outlook menu bar on the Home tab.
Good morning Gary
Here are some pictures of the Cascade Aerator. It has hatches on the top of it. But it has no tie off points for a
harness. Do we need to still do the sampling that is in the new permit. I'll let you see the pictures and see what
you think.
Thank you
Edney George
City of maveCock
WasteWater Treatment (Plant Supervisor
Cell 252-497-5178
Office 252-444-6421
Email rgeorgeG havefockna us

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