NC0026611_Fact Sheet_20200121

Fact Sheet
NPDES Permit No. NCO026611
Permit Writer/Email Contact Nick Coco, [e-mail]:
Date: September 7, 2018
Division/Branch: NC Division of Water Resources/NPDES Complex Permitting
Fact Sheet Template: Version 09Jan2017
Permitting Action:
® 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 Morehead City/Morehead City Wastewater Treatment Plant
Applicant Address:
706 Arendell Street, Morehead City, NC 28557
Facility Address:
1000 Treatment Plant Road, Morehead City, NC 28557
Permitted Flow:
2.5 MGD
Facility Type/Waste:
MAJOR Municipal; 100% domestic
Facility Class:
Grade IV Biological Water Pollution Control System (WPCS)
Treatment Units:
Influent collection stations, influent flow meter, aerated grit removal
system, influent composite sampler, reaction chambers, oxidation
ditches, clarifiers, chemical addition storage systems for alum and ferric
chloride, traveling bridge tertiary filters, post aeration basins, aerobic
sludge storage digesters, sludge dewatering press/dryer system/solid
storage, stand-by generator
Pretreatment Program (Y/N)
N
County:
Carteret
Region
Wilmington
Page 1 of 13

Briefly describe the proposed permitting action and facility background: The Town of Morehead City has
applied for an NPDES permit renewal at 2.5 MGD for the Morehead City WWTP. The facility serves a
population of 8,900 residents. Treated wastewater is discharged into Calico Creek, a class SC-HQW
water in the White Oak River Basin. Calico Creek is also designated as a Primary Nursery Area (PNA) by
NC Marine Fisheries. The Permittee's discharge is 100% domestic with no significant Industrial Users
(SATs) and no pretreatment program. The facility has a primary Outfall 001.
As requested by Division of Marine Fisheries/Shellfish Sanitation, a special condition requiring notification
of any untreated wastewater releases to Calico Creek was added to this permit in 2005. The Division also
added Total Nitrogen (TN) and Total Phosphorus (TP) instream monitoring in 2005 as a result of nutrient
concerns in Calico Creek, and to evaluate the facility impact.
Domestic wastewater enters the facility via two collection stations, each one has its own mechanical bar
screen and transfer pumps. The pumped stations flows combine, pass through the influent meter, enter the
aerated grit chamber, and into reactor chamber 1. An influent composite sampler collects samples.
Flow is distributed from chamber 1 to reactor chambers 2 and 3 which discharge into the two oxidation
ditches with surface rotors. Each chamber has its own mechanical mixers. The combined flow from the
ditches is treated with alum and ferric chloride via chemical addition systems and is distributed to the two
clarifiers. The recombined flow from the clarifiers continues through the tertiary filters, post aeration basin,
UV basin, effluent flow meter, and to the outfall. An effluent composite sampler collects samples. The
tertiary backwash water is recycled to reactor chamber 1.
Removed sludge is collected in a sludge basin which is pumped to two aerobic digesters or can be recycled
to the plant. Solid mixture from the digesters are further dewatering via a belt press and dryer, and mixed
with lime to generate a class A soil conditioner. Water extracted during the dewatering process is collected
in a basin and pumped back to the grit chamber.
HISTORY
2007 - Renewal issued with changes to both 1.7 MGD and 2.5 MGD pages for cyanide and mercury
monitoring with a petition condition. Suspected nutrient overenrichment from the expansion,
resulted in the addition of annual mass -based limits for TN and TP for 2.5 MGD as directed by
15A NCAC 02B .0224 (1)(b). The appropriate nutrient limits were determined by the Division
and are based on an equivalent TN concentration of 5.5 mg/L and TP concentration of 1 mg/L. A
12 month compliance date to provide time to modify operations to meet the new TN and TP mass
limits was granted.
- Clarification on basis of HQW limits was provided as requested by Permittee.
- Correction issued to change mercury sample type to grab.
2008 - Correction issued to change cyanide sample type to grab.
- Minor mod letter issued to discontinue fecal coliform monitoring, no longer required for SC waters
per US EPA 2007 approval.
- Signed Engineer Certificate received for partial completion for expansion to 2.5 MGD. UV, stand-
by power, and solids extended dewatering system not completed.
2010 - Signed Engineer Certificate received for completion of UV, stand-by power, and solids extended
dewatering system.
2012 — Requested and received copies of last five effluent pollutant scans lab summaries.
- Requested and received validations for di-n-butyl phthalate data and for treatment components.
Page 2 of 13

2. Receiving Waterbody Information:
Receiving Waterbody Information
Outfalls/Receiving Stream(s):
Outfall 001 -Calico Creek
Stream Segment:
21-32
Stream Classification:
SC, HQW
Drainage Area (mi2):
-
Summer 7Q 10 (cfs)
Tidal
Winter 7Q10 (cfs):
Tidal
30Q2 (cfs):
Tidal
Average Flow (cfs):
Tidal
IWC (% effluent):
100%
303(d) listed/parameter:
Yes/Turbidity, Chlorophyll a, Dissolved Oxygen and Copper
Subject to TMDL/parameter:
Yes- State wide Mercury TMDL implementation.
Subbasin/HUC:
03-05-03; 03020301
USGS Topo Quad:
I32NW
3. Effluent Data Summary
Effluent data for Outfall 001 is summarized below for the period of August 2014 through February 2019.
Table 1. Effluent Data Summary Outfall 001
Parameter
Units
Average
Max
Min
Permit Limit
Flow
MGD
1.51
5.40
0.932
MA 2.5
Total Monthly Flow
MG
40.5
60.7
34.7
BOD summer
mg/1
1.9
10.9
0.2
WA 7.5
MA 5.0
.BOD winter
mg/1
1.52
10.6
0.2
WA 15.0
MA 10.0
TSS
mg/1
1.61
125
< 0.2
WA 15.0
MA 10.0
pH
SU
8.13
8.5
7.3
6.8 < pH < 8.5
DO
mg/1
8.21
16.8
5.89
DA >6.0
Page 3 of 13

NH3N summer
mg/l
0.15
7.1
0.013
WA 3.0
MA 1.0
NH3N winter
mg/l
0.06
0.016
WA 6.0
MA 2.0
Enterococci
#/100 ml
1.64
387
0.1
(geometric)WA 276
NLk 35
TKN
mg/1
1.3
32.6
0.05
NO2-N + NO3-N
Mg/L
3.75
16.1
0.02
TN
mg/1
4.88
16.8
< 0.5
TN Load
lb/mo
1794
5320
564
TN Load
lb/yr
22,423
28,729
16,004
41,856
TP
mg/1
1.15
4.58
0.03
TP Load
lb/mo
419
861
126
TP Load
lb/yr
5,003
5,748
4,157
7,610
Temperature
° C
21.5
29
10
Total Nickel
µg/l
12.8
29
< 10
Di-n-butyl phthalate
µg/l
3.13
9.62
< 1
Total Copper
µg/l
12.8
21
8
Total Zinc
µg/l
26.2
52
< 10
MA -Monthly Average, WA -Weekly Average, DM -Daily Maximum, DA=Daily Average
4. Instream Data Summary
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/l 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).
If applicable, summarize any instream data and what instream monitoring will be proposed for this
permit action:
Students t-tests were run at a 95% confidence interval to analyze relationships between instream
samples. A statistically significant difference is determined when the t-test p-value result is < 0.05.
The current permit requires instream monitoring of dissolved oxygen, temperature, chlorophyll -a, total
nitrogen and total phosphorous. Upstream and downstream data was provided by the facility.
Page 4 of 13

The stream segment is listed as impaired for dissolved oxygen (DO) in the 2018 303(d) list. During this
analysis, which utilized data ranging from May 2016 to January 2019, it was concluded that the
downstream DO ranged from 1.7 to 14.0 mg/L. The upstream DO ranged from 1.2 to 21.1 mg/L.
Downstream DO dropped below 5 mg/L [per 15A NCAC 02B .0220 (5)] 92 times during the period
reviewed. When looking at the data, low downstream DO correlated with low upstream DO.
Additionally, effluent DO showed no significant decrease and effluent enterococci showed no significant
increase on the days when downstream dissolved oxygen dropped below 5 mg/L. It was concluded that no
statistically significant difference between upstream and downstream DO exists. Drops in downstream
dissolved oxygen were likely due to background conditions and not due to the facility's discharge.
Downstream temperature ranged from 4.2 to 33.9 degrees Celsius. Upstream temperature ranged from 4
to 34.3 degrees Celsius. The downstream temperature exceeded 32 degrees Celsius [per 15A NCAC 02B
.0220 (17)] 25 times. Upon review of effluent data, effluent temperature did not exceed 29 degrees during
the period reviewed. Upstream temperature was also high on the days downstream temperature exceeded
32 degrees Celsius. The temperature differential exceeded 0.8 degrees Celsius 23 times during the months
of June, July, and August. During the other months, the temperature differential exceeded 2.2 degrees
Celsius once (12/28/17). After reviewing effluent data, it was found that effluent temperature was lower
than that of the downstream water. Additionally, it was concluded that there is no statistically significant
difference between upstream and downstream temperature.
The stream segment is listed as impaired for chlorophyll -a in the 2018 303(d) list. Downstream
chlorophyll -a ranged from 1 to 110 µg/1. Upstream chlorophyll -a ranged from 2 to 492 µg/l. Downstream
chlorophyll -a exceeded 40 µg/L [per 15A NCAC 02B .0220 (3)] on four occasions during the period
reviewed. However, the upstream chlorophyll -a levels were also high on the dates of the exceedances.
Based on a student's Mest, a statistically significant difference between upstream and downstream
chlorophyll -a exists. This statistically significant difference is likely due to the downstream chlorophyll -a
being consistently lower than upstream chlorophyll -a.
Downstream total nitrogen ranged from 0.1 to 3.4 mg/L. Upstream total nitrogen ranged from 0.5 to 3.8
mg/L. A statistically significant difference does exist between upstream and downstream total nitrogen.
This statistically significant difference is likely due to the downstream total nitrogen being consistently
lower than upstream total nitrogen. (Note: A single value for upstream TN was removed from the dataset
during analysis, as it was deemed an outlier [upstream reading of 80.1 mg1L on 1118116].)
Downstream total phosphorous ranged from 0.1 to 0.8 mg/L. Upstream total phosphorous ranged from
0.1 to 1.1 mg/L. It was concluded that no statistically significant difference exists between upstream and
downstream total phosphorous.
Is this facility a member of a Monitoring Coalition with waived instream monitoring (YN): NO
Name of Monitoring Coalition: NA
5. Compliance Summary
Summarize the compliance record with permit effluent limits (past 5 years): Records were reviewed from
January 2014 to January 2019. The facility reported one ammonia limit violation in 2015. The facility
reported one total suspended solids limit violation in both 2016 and 2018.
Page 5 of 13

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 acute toxicity tests from February 2014 to May
2018. The facility passed 4 of 4 second species tests from November 2018 to February 2019.
Summarize the results from the most recent compliance inspection: The last facility inspection conducted
ii. September 2018 reported that the facility w in compliance.
6. Water Quality -Based Effluent Limitations (WQBELs)
Dilution and Mixing Zones
In accordance with 15A NCAC 2B.0206, the following streamflows are used for dilution considerations
for development of WQBELs: 1Q10 streamflow (acute Aquatic Life); 7Q10 streamflow (chronic Aquatic
Life; non -carcinogen HH); 30Q2 streamflow (aesthetics); annual average flow (carcinogen, HIT).
If applicable, describe any other dilution factors considered (e.g., based on CORMLXmodel results): NA
If applicable, describe any mixing zones established in accordance with 15A NCAC 2B.0204(b): NA
Oxveen-Consumine 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/1 for Municipals) may be appropriate if deemed more stringent based on dilution and
model results.
Ifpermit limits are more stringent than TBELs, describe how limits were developed:
Both winter and summer BODs limits were set based 15A NCAC 02B .0224 standards for High Quality
Waters. No changes are proposed from the previous permit limits.
Ammonia and Total Residual Chlorine Limitations
Limitations for ammonia are based on protection of aquatic life utilizing an ammonia chronic criterion of
1.0 mg/1(summer) and 1.8 mg/1(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 ug/1) and capped at 28 ug/1(acute impacts). Due to analytical issues, all TRC values
reported below 50 ug/1 are considered compliant with their permit limit.
Describe any proposed changes to ammonia and/or TRC limits for this permit renewal: The facility
completed the installation of UV disinfection in 2010. As chlorine is not utilized at this facility, no
monitoring or limit are required for total residual chlorine (TRC). A special condition is in the current
permit prohibiting TRC levels higher than 50 ug/L in the discharge in the event that the UV system fails,
and the facility disinfects with chlorine. No changes are proposed for TRC.
Ammonia limits were set based on a 1990 North Carolina Water Quality Analysis Program (NCWQAP)
model used in evaluating the water quality impacts to Calico Creek from the Morehead City wastewater
discharge. The limits concluded from the modeling evaluation are more stringent than the standards set in
Page 6 of 13

15A NCAC 02B .0224. The ammonia limits have been reviewed in the attached wasteload allocation
(WLA) and have been found to be protective of the stream. No changes are proposed for ammonia.
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, 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 %z 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.
A reasonable potential analysis was conducted on effluent toxicant data collected between August 2014
and November 2018. 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: Copper, Nickel, Zinc,
• 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: NA
• No Limit or Monitorine: 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: Di-n-Butyl Phthalate
• POTW Effluent Pollutant Scan Review: Three effluent pollutant scans were evaluated for
additional pollutants of concern.
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: NA
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: NA
o The following parameters will not receive a limit or monitoring, since no samples
exceeded the allowable discharge concentration: Arsenic, Beryllium, Cadmium, Total
Phenolic Compounds, Chromium, Cyanide, Lead, Nickel, Selenium, Silver
■ Permit tee shall monitor to lowest PQL
• Arsenic (target PQL 2.0 ug/L)
• Cadmium (target PQL 0.5 ug/L)
• Lead (target PQL 2 ug/L)
• Silver (target PQL 1 ug/L)
The Town of Morehead City is currently required to analyze for di-n-butyl phthalate down to a PQL of 1
ug/L. The values reported in the DMR for di-n-butyl phthalate were sporadic and all considered non -
detect. Upon discussing the data with the Division Lab, it was determined that the target PQL set by the
lab is 10 ug/L and the reason the Town was reporting such sporadic non -detects was due to the analyte
being a common laboratory contaminant which leads to difficulty in getting consistent results. As the
Page 7 of 13

target PQL designated by the Division Lab is 10 ug/L, the requirement to analyze for di-n-butyl phthalate
down to 1 ug/L has been removed from the permit. Additionally, as all values reported were non -detect,
quarterly monitoring for di-n-butyl phthalate has been removed from the permit.
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.
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: This is a Major POTW, and an acute WET limit at 90%
effluent will continue on a quarterly frequency.
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 (>l ng/1) 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/1) and/or if any individual value exceeds a TBEL
value of 47 ng/l.
Table 2. Mercury Effluent Data Summary (2.5 MGD)
2014
2015
2016
# of Samples
1
1
1
Annual Average Conc. n
0.5
0.5
0.5
Maximum Conc., n /L
0.5
0.5
0.5
TBEL, n L
47
WQBEL, n
12.5
Describe proposed permit actions based on mercury evaluation:
Since no annual average mercury concentration exceeded the WQBEL, and no individual mercury sample
exceeded the TBEL, no mercury limit is required. Since the facility reported no detects above 1 ng/L, no
mercury minimization plan (MMP) is required. The MMP special condition has been removed from the
permit. For reference, the Town's MMP has been attached to the Fact Sheet.
Page 8 of 23

Other TMDL/Nutrient Management Strategy Considerations
If applicable, describe any other TMDLs/Nutrient Management Strategies and their implementation
within this permit: Upon the facility's expansion to 2.5 MGD in 2007, annual limits for nitrogen and
phosphorous were included in the permit. At the time, Calico Creek had noted water quality problems
including nutrients. For expansions of facilities into waters where nutrient over -enrichment is a concern,
the Division can set effluent limitations for total nitrogen and total phosphorous as per 15A NCAC 02B
.0224 (1)(b).
Nitrogen: The Permittee receives a TN Load limit of 41,856 lb/yr, a calendar year limit, which is equivalent
to a concentration of 5.5 mg/L.
Table 3: Annual Reported TN Load (Allocation = 41,856 lb/yr)
2015
2016
2017
2018
23,820lb/ r
20,126lb/ r
16,004 lb/yr
lb/yr
57% of
allocation
48.1 % of
allocation
38.2% of
allocation
68.6% of
allocation
Note: Reported flow approximately 60.4% of its permitted flow
Phosphorus: The Permittee receives a TP Load limit of 7,610 lb/yr, a calendar year limit, which is equivalent
to a concentration of 1 mg/L. While the facility is operating at roughly 55% of its design flow, it is
discharging 67% of its total annual phosphorous allocation, on average. The phosphorous loading will
continue to be reviewed to ensure there is no upward trend.
Table 4: Annual Reported TP Load (Allocation = 7,610 lb/yr)
2015
2016
2017
2018
4,759lb/yr
4,1571b/yr
5,634lb/yr
4,719lb/yr
62.5% of
allocation
54.6% of
allocation
74% of
allocation
62% of
allocation
Note: Reported flow approximately 60.4% of its permitted flow
If nutrient management strategies for the receiving stream are developed, these limits may be modified
accordingly.
Other W BEL Considerations
If applicable, describe any other parameters of concern evaluated for WQBELs: NA
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: As total copper, total nickel
and total zinc demonstrated reasonable potential to exceed the facility's allowable discharge
concentrations based on state surface water standards, monthly average and daily maximum limits have
been put in the permit for each parameter. After discussing the limits with the Permittee, the Permittee
requested a schedule of compliance to provide time to locate issues and come into compliance with the
new limits. A 5-year compliance schedule has been put in the permit. Within 1 year of the permit's
effective date, the Permittee shall submit to DWR an Action Plan for Division approval, summarizing the
Page 9 of 13

strategy or actions to be taken to achieve compliance with the total copper, total nickel and total zinc
limitations. Within 2 years of the permit's effective date, the Permittee shall submit a report to the
Division summarizing actions taken in accordance with the Action Plan. Within 3 years of the permit's
effective date, the Permittee shall submit an updated report to the Division summarizing actions taken in
accordance with the Action Plan. Within 2 years of the permit's effective date, the Permittee shall submit
an updated report to the Division summarizing actions taken in accordance with the Action Plan. The
Town shall achieve compliance with total copper, total nickel and total zinc limitations within 5 years of
the permit's effective date. The plan will include specific dates for completion or implementation of each
action.
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)
Municinals (if not applicable. delete and skin to Industrials)
Are concentration limits in the permit at least as stringent as secondary treatment requirements (30 mg/1
BOD51TSS for Monthly Average, and 45 mg/l for BOD51TSS for Weekly Average). YES
If NO, provide a justification for alternative limitations (e.g., waste stabilization pond). NA
Are 85% removal requirements for BOD51TSS included in the permit? YES
If NO, provide a justification (e.g., waste stabilization pond). NA
If any limits are based on best professional judgement (BPJ), describe development: NA
Document any TBELs that are more stringent than WQBELs: NA
Document any TBELs that are less stringent than previous permit: 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 EngineeringAlternatives
Analysis (EAA) and any water quality modeling results:
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
Page 10 of 13

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 2B.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.
For instream monitoring, refer to Section 4.
The Town of Morehead City requested monitoring frequency reductions for CBOD5, Total Suspended
Solids, NH3-N and Fecal Coliform on July 31, 2019 for their 2019 NPDES permit renewal based on
DWR Guidance Regarding the Reduction of Monitoring Frequencies in NPDES Permits for
Exceptionally Performing Facilities. The last three years of the facility's data for these parameters have
been reviewed in accordance with the criteria outlined in the guidance. The Division has decided to grant
the Town of Morehead City 2/week monitoring frequency requirements for BOD5, Total Suspended
Solids, NH3-N and Fecal Coliform.
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 5. Current Permit Conditions and Proposed Changes 2.5 MGD
Parameter
Current Permit
Proposed Change
Basis for Condition/Change
Flow
MA 2.5 MGD
No change
15A NCAC 2B .0505
Total Monthly
Monthly monitoring
No change
For calculation of Total Nitrogen
Flow
and Total Phosphorous loads
130135
Summer:
Monitor 2/week
WQBEL. 15A NCAC 02B .0224
MA 5 mg/L
standards for High Quality Waters.
WA 7.5 mg/L
DWR Guidance Regarding the
Winter:
Reduction of Monitoring
MA 10 mg/L
Frequencies in NPDES Permits for
WA 15 mg/L
Exceptionally Performing Facilities
Monitor 3/week
NH3-N
Summer:
Monitor 2/week
WQBEL. Based on 1990 NCWQAP
MA 1.0 mg/L
model. 2018 WLA review. DWR
WA 3.0 mg I
Guidance Regarding the Reduction
Winter:
of Monitoring Frequencies in
MA 2.0 mg/L
NPDES Permits for Exceptionally
WA 6.0 mg/L
Performing Facilities
Monitor 3/week
Page 11 of 13

Total Suspended
MA 10 mg/L
Monitor 2/week
WQBEL. 15A NCAC 02B .0224
Solids
WA 15 mg/L
standards for High Quality Waters,
Monitor 3/week
Primary Nursery Area. DWR
Guidance Regarding the Reduction
of Monitoring Frequencies in
NPDES Permits for Exceptionally
Performing Facilities
Enterococci
MA 35 /100mL
Monitor 2/week
WQBEL. Water quality criteria for
WA 276 /100mL
coastal waters promulgated by EPA
in December 2004. DWR Guidance
Regarding the Reduction of
Monitoring Frequencies in NPDES
Permits for Exceptionally
Performing Facilities
Dissolved Oxygen
DA > 6 mg/L
No change
WQBEL. 15A NCAC 02B .0224
standards for High Quality Waters
Temperature
Monitoring daily
No change
15A NCAC 2B .0500 - Surface
Water Monitoring: Reporting
pH
6.8 - 8.5 SU
No change
WQBEL. 15A NCAC 02B .0220
(12) standards for SC Waters
Total Nitrogen
Weekly monitoring
No change
Monitoring Requirement as part of
nutrient load limit 15A NCAC 02B
.0224 (1)(b)
TKN
Weekly Monitoring
No change
For calculation of Total Nitrogen
NO2-N + NO3-N
Weekly Monitoring
No change
For calculation of Total Nitrogen
TN Load
Monthly Monitoring
No change
WQBEL. 15A NCAC 02B .0224
Annual Monitoring
(1)(b)
41,856 lb/yr
Total Phosphorus
Weekly monitoring
No change
Monitoring Requirement as part of
nutrient load limit 15A NCAC 02B
.0224 (1)(b)
TP Load
Monthly Monitoring
No change
WQBEL. 15A NCAC 02B .0224
Annual Monitoring
(1)(b)
7,610 lb/yr
Total Nickel
Quarterly monitoring
MA 4.15 ug/L
WQBEL. 15A NCAC 02B .0220.
WA 37.35 ug/L
Based on results of RPA; RP shown
Monthly monitoring
- apply limits and monthly
5-year compliance
monitoring
schedule
Di-n-butyl
Quarterly monitoring
Monitoring
Facility reported all non -detects at
Phthalate
requirement removed
lowest PQL; monitoring will be
required only in Effluent Pollutant
Scans
Total Copper
Quarterly monitoring in
MA 1.85 ug/L
WQBEL. 15A NCAC 02B .0220.
conjunction with acute
WA 2.90 ug/L
Based on results of RPA; RP shown
toxicity testing
Monthly monitoring
- apply limits and monthly
5-year compliance
monitoring
schedule
Page 12 of 13

Total Zinc
Quarterly monitoring in
MA 42.8 ug/L
WQBEL. 15A NCAC 02B .0220.
conjunction with acute
WA 47.6 ug/L
Based on results of RPA; RP shown
toxicity testing
Monthly monitoring
— apply limits and monthly
5-year compliance
monitoring
schedule
Acute Toxicity
Acute limit, 90%
No change
WQBEL. No toxics in toxic
effluent, Quarterly
amounts. 15A NCAC 213.0200 and
15A NCAC 213.0500
Effluent Pollutant
Three times per permit
No change
40 CFR 122
Scan
cycle
Electronic
No requirement
Electronic Reporting
In accordance with EPA Electronic
Reporting
Special Condition
I Reporting Rule 2015.
MGD — Million gallons per day, MA - Monthly Average, WA — Weekly Average, DM — Daily Max
13. Public Notice Schedule:
Permit to Public Notice: August 23, 2019
Per 15A NCAC 21-1.0109 & .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 questions regarding any of the above information or on the attached permit, please contact
Nick Coco at [phone] or via email at [e-mail]
15. Fact Sheet Addendum (if applicable):
Were there any changes made since the Draft Permit was public noticed (Yes/No): NO
If Yes, list changes and their basis below: NA
The draft permit was sent to US EPA Region 4, the Wilmington Regional Office, the Division Operator
Certification Program, the Division Aquatic Toxicology Branch and the Division of Marine Fisheries
Shellfish Sanitation Section. No comments were received from each of these parties. See attached for the
concurrence memo submitted by Shellfish Sanitation.
The Town of Morehead City provided comment on the draft NPDES permit on September 23, 2019:
Comment: Subject draft NPDES Permit contains new effluent limits for copper, nickel and zinc.
Morehead City does not believe it has any users contributing these metals to the wastewater in quantities
above background source water. The Town also has no upstream or downstream analyses of these metals.
Accordingly, the Town objects to these parameters being added to the NPDES Permit. Before these limits
are added, allowances should be made to account for existing background source water quality as well as
background stream quality.
Page 13 of 14

Response: The limits set in the permit for copper, nickel and zinc are based on the results of a reasonable
potential analysis. As the stream segment to which the Morehead City WWTP is classified as SC waters,
no background concentration is assumed for the parameters in the RPA. Additionally, due to the receiving
stream being classified as High Quality Waters, each allowable discharge concentration is equal to the
half the applicable NC Water Quality Standard or federal criteria times a dilution factor. As no dilution
study has been conducted, the dilution factor was set to 1. The limits are maintained in the final permit.
The Town has requested and been granted a 5-year schedule of compliance to take actions toward
achieving compliance with the new limits for copper, nickel and zinc.
16. Fact Sheet Attachments (if applicable):
• RPA Spreadsheet Summary
• BOD and TSS Removal
• Waste Load Allocation Spreadsheet
• Instream Monitoring Summary
• Mercury TMDL Summary
• Morehead City MMP
• Shellfish Sanitation Concurrence Memo
Page 14 of 14

COUNCIL
George W. Ballou, Mayor Pro Tem
Keri V. McCann
William F. Taylor
Harvey N. Walker, Jr.
Diane C. Warrender
MOREHY AD ( ITY
D Celt
-NORTH C A R O L I N A—- - ��w � '1�
706 Arendell Street
Morehead City, North Carolina 28557-4234
TEL [phone]
FAX [phone]
www.moreheadcitync.org
September 23, 2019
Nicholas A. Coco, EI
NPDES Complex Permitting Unit
NC DEQ / Division of Water Resources / Water Quality Permitting
1634 Mail Service Center
Raleigh, NC 27699-1634
SUBJECT: Draft NPDES Permit Renewal
Town of Morehead City
Carteret County, NC
Facility Class IV
SIC Code 4952
Dear Mr. Coco:
Gerald A. Jones, Jr., Mayor
Ryan T. Eggleston
City Manager
Subject draft NPDES Permit contains new effluent limits for copper, nickel and zinc. Morehead City
does not believe it has any users contributing these metals to the wastewater in quantities above the
background source water. The Town also has no upstream or downstream analyses of these metals.
Accordingly, the Town objects to these parameters being added to the NPDES Permit. Before these limits
are added, allowances should be made to account for existing background source water quality as well as
background stream quality.
If you have any questions, please do not hesitate to contact me.
Sincerely,
Ryan Eggleston
City Manager
FTL:
Enclosures
cc: McDavid Associates
11G-G10S1D10051FTL12019 ADA/EOE/P Equal Opporttnity Employer Provider
ME CITY-NPDES-PMT-LTR
RECEIVED
SEP 3 0 2019
NCPWS
190916

4
Water Resources ~
Envirorunental Quality
August 22, 2019
L;T1 t 1U9
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
LINDA CULPEPPER
Interim Director
To: Andrew Haines
NC DEQ / DMF / Shellfish Sanitation Regional Environmental Health Specialist
Wilmington Regional Office
From: Nick Coco
919-707-3609
NPDES Unit
Subject: Review of Draft NPDES Permit NCO026611
Morehead City WWTP
Carteret County
Please indicate below your agency's position or viewpoint on the draft permit and return this form by September 23,
2019. If you have any questions on the draft permit, please feel free to contact me at the telephone number shown
above.
RESPONSE: (Check one)
Concur with.the issuance of this permit provided the facility is operated and maintained properly, the stated
effluent limits are met prior to discharge, and the discharge does not contravene the designated water quality
standards.
Concurs with issuance of the above permit, provided the following conditions are met:
F-1 Opposes the issuance of the above permit, based on reasons stated below, or attached:
Signedy " " -----.Date: _ /3 . f -
-'r"'"hlftg cgmooro-o - :
State of North Carolina I Environmental Quality
1611 Mail Service Center I Raleigh, North Carolina 27699-1611
919-707-9000

Chad Sutton
Nathaniel David Johnson
Town of Morehead City Waste Water Treatment Plant
706 Arendell Street
Morehead City, NC 28557
11/21/2019
Dear Nicholas A. Coco:
I have reviewed the guidelines of the DWQ Guidance Regarding the Reduction of Monitoring
Frequencies in the NPDES Permits for Exceptionally Performing Facilities and I am officially
requesting reductions in monitoring frequencies of TSS, NH3, BODS, and Enterococcus to twice a
week for these parameters. We request this reduction because we meet the criteria as stated:
1) Our facility has no civil penalties for permit violations for TSS, NH3, BODS, and Enterococcus
for the 3 previous years.
2) The permittee nor any employee has been convicted of criminal violations of the clean
water act within the previous 5 years
3) The facility is currently compliant with all SOC target Parameters
4) The facility is not on the EPA's Quarterly Noncompliance Report for target parameter limit
violations.
5) For TSS, NH3, and BODS the 3-year arithmetic mean of Effluent data is less than 50% of the
monthly average permit limit (Tss =1.43 the limit is 10mg/L)(BODS= 1.46 the limit is
5(summer) and 10 (winter))(NH3 =.0612 the limit is 1mg/L and 2 mg/L (summer/winter)
6) For Enterococcus, the 3-year geometric mean is less than 50% of the monthly average
permit limit. Enterococci = 1.57/100 mL (the Limit is 35/100 ml-)
706 Arendell Street 1 Morehead City, NC 28557 1 [phone] 1 www.moreheadcitync.org

7) There are not more than 15 samples for the last 3 years that are over 200% of the average
monthly limits for TSS, NH3, BODS, and Enterococcus.
8) There are not more than 20 samples for the last 3 years that are over 200% of the average
monthly limits for Enterococcus.
9) There are no limit violations for TSS, NH3, BODS, and Enterococcus for the previous year
10) Reduced effluent monitoring does not affect sensitive downstream uses.
Included with this letter is a copy of our data results and our calculations using Excel. We would like to
thank you for your time and for considering our plant for Reduced Monitoring.
Sincerely,
Chad Sutton ORC
Superintendent
Nathaniel David Johnson MBA, MPH, BS Chemistry
Utility Lab Technician
706 Arendell Street Morehead City, NC 28557 [phone] 1 www.moreheadcitync.org

2019 NPDES Permit Renewal Morehead City Monitoring Frequency Reduction Analysis
Januanry 2016 TSS
BOD
Ammonia
Enterococcus
1.5
0.5
0.06
1
1.6
0.3
0.06
2
1.1
1.7
0.06
2
1
1.6
0.9
1.1
1.3
0.3 0.07 1.5
1
0.6 0.07 1
1.6
1.4 0.07 <1.0
2
0.5
2
1.3
1.5
1.1
0.06
1.5
1.1
0.7
0.06
1
1.2
1
0.06
2
1.1
0.6
2.7
1.3
1.4
2.3
0.24
<1.0
1.2
2.4
0.15
2
1.8
3.7
0.09
1
1.4
0.9
avg 1.442105263
1.226315789
0.0875
1.5
16-Feb
1.1
1.8
0.08
2
0.09
1.7
0.07
1
1
1.6
0.07
<1.0
0.09
2.1
2.4
1.5
0.9
1.5
0.06
5
1.1
1
0.06
4
1
1.7
0.06
2.5
1
1.5

1.2 1.5
1.8
0.9
0.06
4
1.5
0.9
0.05
3
1.2
0.9
0.06
4
1.8
0.5
1.2
1
1.2
1.9
0.07
2
0.9
0.9
0.06
1.5
0.9
0.9
0.06
<1.0
1.6
1.6
0.9
0.9
1.2
1
avg 1.146666667
1.3
0.063333333
.2.9
16-Mar
1.2
1
1
1.1
0.7
0.07
1
1
0.8
0.07
<1.0
0.8
0.7
0.06
1.1
1.5
<1.0
1.1
1.9
1
1.1
1.5
0.06
2
1
1.5
0.06
1.2
1.8
0.06
1.3
3.3
0.07
3
1.2
1.7
0.07
2.5
1.5
2.7
0.07
1
1.3
1.5
1.4
2.8
1.6
1.3
3
1.2
0.9
0.06
1
1.4
1.4
0.06
2.5
1.4
1.4
0.07
1
1
0.06
4.1

1.2
2
0.07
<1.0
1.1
2
0.06
1
1
1.4
avg 1.190909091
1.581818182
0.064666667
1.5
17-Apr
1
0.9
0.05
1
1.1
1
0.06
4
0.9
1.3
0.05
1.5
1.1
0.8
1.2
0.3
1.8
1.4
0.04
<1.0
0.7
0.3
0.06
<1.0
1.1
0.3
0.06
1
1
0.7
1.4
1.4
1
2.4
3
1.2
1.8
0.05
5.1
1.3
1.8
0.05
2.5
1.2
2.3
0.05
1.2
1.3
1.1
1.8
0.06
1.5
1.8
2.4
0.04
3
1.4
1.8
0.06
1
1.3
2.2
1.2
1.5
avg 1.2
1.385
0.0525
2.36
16-May
2
3.7
0.04
2
1.6
3.9
0.04
1
1.5
2.5
0.06
<1.0
1.6
3
1.5
1.6
1.6
6.5
0.05
2.5

1.6
4.1
0.06
1
1.3
3.8
0.05
<1.0
1.6
4.8
1.4
4.4
1.7
1.8
0.06
<1.0
0.8
1.3
0.04
1
1.1
1.4
0.06
3
0.9
2.4
0.8
1.5
1.2
1.3
0.05
2
1
1.5
0.05
3
0.9
1.7
0.05
1
1.1
1A
1
1.4
avg 1.2
2.8
0.05
1.5
16-Jun
1.3
2
0.04
2
1
0.5
0.04
<1.0
0.9
1.5
0.03
1.9
1.9
0.04
2.5
1.5
1.8
0.03
3
1.2
1.4
0.04
1.5
1.4
1.2
1.2
2
0.9
1.2
0.04
1
0.9
0.3
0.04
<1.0
1.1
1.3
0.05
3
1
0.9
0.9
2.2

1.5
1.8
0.04
1.4
2.3
0.05
3.5
1.3
3.3
0.04
2
1.2
1.5
1
1.6
3.1
1.3
2.1
0.04
2
1.3
1.1
0.05
2
1.2
1.9
0.04
3
1.2
1.1
avg 1.2
1.9
0.04
1.9
16-Jul
1
0.4
0
1
0
0
0
0
0
0
0
0
0
1.5
1.9
0.04
1
1.8
0.05
1
1.2
1.7
0.04
2
1.6
1
0
1
0
1
0
0
1
0
1.2
4.8
0.05
1.4
1.7
0.04
2
1.2
1.9
0.05
1
1.4
1.7
0
2.5
1.2
0.5
0
0
0
0
0
0
0
1.1
0.7
0.05
9
2.8
0.05
3
1
1.9
0.04
1
0.9
1.1
0
2
0.8
1.1
0
0
0
0
0
0
0
1
1.1
0.04
2.5
1.1
0.04
1
1
1.3
0.04
3
1.2
0.8
0
5.1
1.2
0.8
0
0
0
0

AVG
1.2
1.6
0.04
1.4
Aug-16
1
1.6
0.05
1
1.2
4.2
0.06
2
125
7.9
1
3.2
0.08
1
1.3
2.4
1.2
1.2
0.04
1.5
1
1.6
0.04
3
1.3
1.8
0.05
2
1.4
3.5
1.4
2.1
0.9
2.3
0.05
1
0.8
1.3
0.05
1
1.4
2.1
0.04
2
1.2
3.8
1
3.3
1.3
1.5
0.06
1
1.2
1.3
0.04
2
1.5
2.9
0.04
1.5
1.3
3.5
1
2.3
1
1.5
0.03
1
1.2
1.4
0.03
1
1.2
1.6
0.05
1
AVG
6.6
2.5
0.04
0.9
Sep-16
1.2
2.4
1.2
1.8
1
2.8 0.04 2
1.2
2.1 0.05 1
1
1.2 0.05 3
1.4
1.8

1
3.1
0.05
1
0.8
2.8
0.04
2
1.4
0.3
0.04
1
1.2
0.4
0.9
0.5
0.8
2.9
0.04
1
1
2.9
0.05
2
1
1.2
0.04
1
1.3
4.3
1
2.3
0.9
2.4
0.04
2
1.2
2.6
0.05
1
1
1.6
0.05
2
0.8
1.6
0.9
1.8
AVG 1.1
2
0.04
1.5
Oct-16
0.9
1.2
0.05
2
0.8
1.5
0.05
1
1.1
1.4
0.04
2
0.9
2
0.8
2.4
0.7
0.3
1
0.9
0.4
0.5
0.8
0.4
0.05
1
0.9
1.8
0.04
1
0.6
0.05
0.9
0.4
0.03
2
0.8
0.8
0.05
3.1
1.4
1.4
0.04
1
2.5
1.5
1.6
0.8
1.4
1.7
0.05
1.5

1.4
1.8 0.04 2
1.2
1.3 0.06 1
1.4
2.5
1.3
2.9
0.9
1.7
AVG 1.1
1.5
0.04
1.4
Nov-16
1
1
0.04
2
0.9
5
0.03
1
1
1.4
0.05
1.5
1.3
2.1
1.9
0.8
1.8
0.04
3
0.9
2.8
0.04
1
1
1.4
0.03
1
0.9
1.8
1
2.1
0.04 1
1.2
1.4
0.04 1
1
1.3
0.05 1
0.8
0.9
1.2
1.2
1
1.3
0.05 1
1.1
1.6
0.03 1
0.8
0.9
0.04 1
1
0.9
0.05
1
0.9
0.9
0.05
1
1
0.5
0.05
2
AVG 1
1.3
0.04
0.9

Dec-16
AVG
0.8
0.7
1.2
1
1.1
1.8
0.0344 1
0.8
2.2
0.0412 1
1.3
0.8
0.039 1
0.9
1.8
1.6
0.9
1.2
1.5
0.0372 2
1.4
1.9
0.0355 1
1.2
2.5
0.0409 1
1.2
1.5
1.4
0.9
1.3
1.2
0.0441 1
1.3
0.8
0.0385 1
1.2
0.8
0.0344 1
1.5
1
1.5
2.2
0.8
1.3
0.0472
1
0.9
2.4
0.049
1
1.18
1.43
0.0401
1.065
Yearly avg 1.684725738 1.559493671 0.046095652 1.768181818

Januanry 2017 TSS BOD
Ammonia
Enterococcus
1.2
2.5
1.3
1.9
0.05
< 1
1.2
1.3
0.04
< 1
1.2
1.8
0.05
1
0.9
1.7
1
0.4
0.05
1
0.8
0.5
0.04
< 1
0.9
1.4
0.05
1
1.1
0.7
1.2
1.2
0.9
1.3
0.05
< 1
0.8
10.04
1
0.9
10.04
1
1
1.7
1.1
0.8
0.06
2
1.2
1.1
0.05
1
0.9
1.6
0.05
< 1
0.8
0.8
1.2
2.8
1
4.5
avg 1.03
1.5 0.0475 11.059463
Feb-17
0.9
1.7 0.04 < 1
1
1.6 0.05
1
1.1
3.3 0.05
1
1.3
1.3 0.04
2
1
3.4 0.04
2
1.2
1.2 0.03
2
0.9
3.4
1
2.9

avg
Mar-17
0.9
1.6
0.03
2
1.1
2.3
0.04
1
1
1.4
0.04
1
0.8
2.8
1.1
1.8
1.2
2.7
0.04
1
0.9
1.3
0.05
1
1
1.6
0.05
2
1.3
2
1
1.6
0.7
1.5
0.9
1.8
1.015
2.06
0.041667 1.33484
1.2
1.6
0.04
2
0.9
1.1
0.05
1
1
2.2
0.05
1
0.7
1.2
0.05
2
1
0.5
0.05 < 1
1
0.9
0.04
1
0.9
0.7
0.8
2.4
0.6
0.5
0.04
1.5
0.9
1
0.05
1
0.8
3.2
0.05 < 1
0.8
1.9
1.1
1.3
0.7
3.5
0.05
2
0.8
1.9
0.05 < 1
1
1.7
0.04
1
0.8
1.4
0.7
1.6
0.8
0.2
0.05 < 1
1.1
1.8
0.05
1

average
avg
Apr-17
1 1.6 0.04 < 1
1.2 1.9
1 2.8
0.904348 1.604348 0.046667 1.180172
0.9
1.3
0.05
1
1.2
2.4
0.04
2
1
1.5
0.05
1.5
0.9
2
1.2
1.1
1.3
1.3
0.06 < 1
0.9
2
0.05 < 1
1.2
0.5
0.04
1
1.4
1.3
1
0.9
0.04 < 1
0.9
0.8
0.05 1
1.1
0.5
< 1
1
0.7
0.9
0.9
0.04
1.1
0.3
0.05 1
1.2
1.1
0.05 1
0.7
1.1
0.06 < 1
0.8
1.2
1
1.1
1.036842
1.157895
0.048333 1.095873
May-17
0.9
0.6
0.05 < 1
1.1
0.7
0.05 1
1.2
0.7
0.04 < 1
1.4
0.8
1.8
0.9
1.2
0.5
0.05 1
1.4
0.8
0.05 < 1

1.2
0.9
0.05 < 1
1.2
0.7
1.3
0.6
0.9
1
0.05 4.1
0.8
1.8
0.05 4.1
1
2.5
0.06 11.4
1.2
1.2
1.4
2.3
1.2
3.2
0.05 2
1.4
2.9
0.05 1
1.2
0.9
0.06 < 1
1.5
1.7
1.3
1.9
1
2
0.04 1
0.7
0.8
0.04 < 1
avg 1.195455
1.336364
0.049286 1.529452
Jun-17
0.9
0.6
0.05 1
0.8
0.7
1
0.8
0.05 2
0.9
0.6
0.05 < 1
1
0.8
0.05 1
0.7
1
0.8
1.2
1.4
1.6
0.05 < 1
1.2
1.9
0.05 < 1
1.4
1.7
0.06 2
1.2
1.6
1.2
2.7
0.9
2.6
0.04 1
0.8
3.1
0.05 3

Avg
avg
1
1.7
0.04
1
0.9
1.9
0.7
2.2
1
1.1
0.04 < 1
0.8
4.2
0.04
2
0.7
0.3
0.05
2
1
0.5
0.8
1.9
0.959091
1.577273
0.047692 1.346872
Jul-17
1.7
0.9
0.06
10.8
1.5
3
0.05 < 1
1.3
1.4
0.05
1
1.3
2.3
1.4
2.9
0.05
2
1.1
1.8
0.06
1
1
1.6
0.05 < 1
1.3
2.4
1.6
2.7
0.9
0.9
0.05
1
1
1.1
0.05
2
0.9
0.6
0.06 < 1
0.8
0.7
0.9
0.5
1
0.5
0.06
1.5
0.9
0.7
0.05
1
1.1
0.8
0.05
5.1
1.2
0.6
1
1
1.3 2.1
1.16 1.425 0.053333 1.621544

Aug-17
1.4
1.8
0.06 < 1
1.8
0.9
0.05 1
1.4
0.8
0.05 2
1.5
1.1
1
1.6
0.05 < 1
0.9
1.2
0.04 1
1
1.6
0.05 3.1
0.9
1
1
1.9
0.7
0.6
0.05 1
0.9
1.1
0.04 < 1
1
0.7
0.04 2
1.1
1.8
2.5
1.2
1.8
0.9
0.06 2
1.4
0.5
0.04 1
1.6
1.1
0.04 2
1.2
0.5
1.1
1.7
0.9
2.1
0.04 1
1
0.4
0.06 < 1
0.9
1.6
0.06 < 1
0.7
1.7
avg 1.204348
1.208696
0.048667 1.297275
Sep-17
0.8 1.3
1.3
1.1 < 1
1
0.9 2.7 < 1
0.8
1.4 1.3 1
0.9
1.8 0.9

0.8
1.6
0.07 2
1.1
1.7
0.06 < 1
1
0.5
0.06 1
0.8
1
1.1
0.8
1.2
0.9
0.06 1
1
.0.9
0.07 1
1.3
1.2
0.04 < 1
1.1
1
1.4
0.6
0.7
0.2
0.06 1
0.9
0.4
0.06 < 1
1
0.9
0.05 < 1
0.9
1.1
0.7
0.8
avg 0.99
1.005
0.4525 1.059463
Oct-17
0.9
1.5
0.05
2
1.1
1.7
0.05
1
0.8
1.2
0.03 < 1
0.8
1.2
0.9
1.2
1.8
1.1
0.04
2
1.4
0.6
0.06
1
1.3
0.8
0.04
0.5
1.4
0.7
1.2
0.7
0.8
0.3
0.05
2
2.2
0.2
0.04 < 1
1.2
1.2
0.05 < 1
1.3
1.1
0.7
1.5
1
2.2
0.04

1.4 1.8 0.03 3
1 1.3 0.05 1
1.3 0.8 < 1
0.9 1.2
0.8 1.1
1.1 0.9
avg 1.15 1.104545 0.044167 1.230076
Nov-17
1.2
1
0.06 2
0.7
1.2
0.05 1
0.8
1
0.05 1
0.7
0.6
0.04 < 1
0.9
0.7
0.05 < 1
0.8
3.3
0.04 1
0.8
1.4
0.9
1
0.05 2
0.7
1.5
0.04 2
1.1
0.8
0.04 1
1
0.6
0.9
1
1.5
1.6
0.04 < 1
1.2
1.9
0.04 < 1
1.4
1.9
0.05 < 1
1 2 0.05 1
1.2 0.9 0.05 < 1
0.9 1.1 0.06 1.5
1.6 1.1
avg 1.015789 1.294737 0.047333 1.180172

Dec-17
avg
1.1
0.7
1
0.6
0.04
2
0.9
0.3
0.05
3.1
1.4
0.7
0.05
1
1.4
0.5
1.6
0.4
1.6
0.7
0.05
1
1.2
0.7
0.05 < 1
1.4
0.6
0.04
1
1.1
0.9
1
0.9
0.9
1.4
0.05
2
1.2
1
0.04
1
1.4
2.9
0.04 < 1
1
2.5
1.1
1
1 0.8 0.04 2
1.1 0.5 0.04 < 1
1.188889 0.95 0.044545 1.338962
Yearly avg 1.058407 1.359292 0.08156 1.570213

Januanry 2018 TSS
avg
Feb-18
:01
0.9
1.2
1
0.9
1.3
1.1
0.9
0.9
1
1.1
0.9
0.8
1.2
0.9
1.2
0.7
0.9
0.8
Ammonia Enterococcus
10.04 2
0.8 0.04 48.8
0.8 0.04 < 1
1
3.6 0.05
4.5 0.04
2.5 0.03
1.6
2
10.05
10.04
1.1 0.05
0.4
1.9 0.05
1.7 0.04
0.8 0.04
0.7
0.8
<1
<1
<1
2
1
1
1.8 1.2 0.04 < 1
1.2 1.1 1 2
1 10.06 1
1.033333 1.452381 0.1073 1.488563
0.8
1.3
1.2
1
1.5
0.8
0.05 < 1
1.1
1.1
0.05 < 1
0.8
2.1
0.04
0.7
1.2
0.9
0.5
0.7
1
0.04 < 1
1

avg
Mar-18
0.9
1.9
0.04
1
1
1.1
0.05 < 1
0.8
0.8
1
0.9
0.7
1.3
0.05
1
0.9
1.8
0.06
2
0.8
1.1
0.05 < 1
0.8
1.6
0.9
0.5
0.7
1.2
0.04
1
1
1
0.05
1
1
1
0.04 < 1
0.91
1.16
0.046667
1.059463
0.9
1
0.8
0.6
0.5
1.1
0.05
0.9
0.9
0.06
1.4
1
0.05
1.1
2.2
0.8
1.3
0.9
1.5
0.04
1
2.3
0.05 < 1
0.8
1
0.04 < 1
0.9
1.9
1.1
1.5
0.8
1.9
0.05
0.9
3.6
0.06 < 1
1
1.7
0.05
1.1
1.3
0.8
1.3
1.1
1
0.06 < 1
1
0.9
0.05 < 1
0.8
1.5
0.06
1
1
2
1
1

average 0.938095 1.461905 0.051667 1.095873
Apr-18
0.05
1
1.3
2.3
0.05 < 1
1.4
2.4
0.04
0.9
1.4
2
0.8
1.8
0.9
1.9
0.05
1
1.3
2.3
0.05
2
1.1
1.7
0.04
3.1
0.9
1.7
1
1.6
1.2
1.1
0.04
2
0.8
1.3
0.04
1
0.7
1.7
0.04
1
0.9
2.3
0.9
1.7
1
1.3
0.05
1
1.3
1.8
0.05 < 1
1.2
2.4
0.05
2
0.5
2.4
0.9
3.1
0.8
0.9
0.8
1.5
avg 0.980952
1.83
0.045833
1.384491
May-18
0.9
1.4
0.04
1
0.9
2.2
0.04 < 1
0.4
2.1
0.06
3.1
0.8
1.1
0.8
1
0.05
2
0.9
1.2
0.04
1
0.4
1.9
0.04
1

0.8 1.3
0.9 2.5
1.7
2.7
0.05 1
1.7
2.5
0.06 3
1
2.8
0.05 1
1.7
3.1
1.5
1.4
0.7
0.6
0.06 2
1.1
1
0.07 1
0.6
1.6
0.05 < 1
1.1
1.8
1.2
1.9
74.5
3.2
< 1
2.7
3.8
0.05 1
2.2
1.7
0.06 1
avg 4.477273 1.945455 0.051429 1.272632
Jun-18
0.7
2.6
0.7
2
1.92
1
2.2
1.99
0.0282 1
2.2
1.81
0.016 1
3.9
3.14
0.0903
2.2
2.9
1.4
1.3
0.221 2
2
2.7
0.0211 < 1
2.3
1.8
0.0756 2
2.4
1.6
3
3.09
1.6
1.54
0.0497 < 1
1.5
2.23
0.0512 < 1
1.8
1.68
0.0278 3

Avg
Jul-18
avg
1.7
1.37
2.2
1.72
1.3
1.22 0.0236 < 1
1.8
1.42 0.0302 11.9
1.6
1.02 1.22 7.25
1.9
1.82
2
2.1
1.927273 1.950952 0.154558 1.783428
3
1.4
0.0762
2.1
1.2
1.5 .
0.0779
1
1.7
1.01
0.0358
2
0.7
1.16
2
1.05
0.0498 < 1
0.7
1.35
0.0179
2
0.7
0.43
0.0334 < 1
0.9
0.53
1.5
1.32
0.5
0.65
0.0262
2
1.1
1.05
0.0129
1
2.4
0.71
0.0359
1
2.9
1.25
2.9
1.34
1.9
1.11
0.018
1
1.7
1.58
0.0342
3.1
2.3
0.91
0.0204
1.5
1.9
1.5
1.7
1.89
1
0.32
0.0692
21.65
0.8
0.43
0.0466
4.1
1.595238
1.070952
0.0396
1.880864

avg
Aug-18
Sep-18
0.7
0.33
0.0431 17.9
0.5
0.99
0.4
1.85
0.4
0.79
0.0688 < 1
0.3
0.76
0.0385 < 1
0.7
0.65
0.0369 < 1
0.4
1.15
0.3
1.17
1
0
0.0774 < 1
1.2
0
0.0867 < 1
0.5
0.63
0.0596 < 1
1.5
0.93
2
0.78
1.3
1.06
0.0446
1
0.5
1.11
0.0538 < 1
1.4
1.04
0.0398
1
0.9
1.14
1.8
1.34
2.9
1.32
0.0552 < 1
2.1
1.47
0.0365 < 1
1.3
1.49
0.0375
1
1.2
1.73
1.7
1.71
1.086957
1.01913
0.052185
1.248456
1
0.5
0.096
2.6
0.9
0.9
0.0328
1
1.2
1.22
0.0359
4.1
1.1
1.12
1
0.55
0.0514
4.1

1.5 1.02 0.0428 < 1
0.7 1.8 0.0202 1
1.6 1.6
2.5
4.92
1.3
3.17
4.1
2.2
1.28
0.141
2
0.9
1.58
0.0454
7.5
2.2
1.36
0.0338
1.2
0.88
0.132
1
1.1
0.53
0.064
3.1
1.3
0.38
0.0442
3
1.4
0.33
1.5
0.36
avg 1.366667
1.305556
0.061625
2.325367
Oct-18
1.2
1.53
0.0669
1.5
1
0.96
0.047
3
0.9
0.31
0.0343
2
1.3
0.31
0.8
1.02
1.2
1.21
0.0469
2
1.6
1.21
0.0347
1
1.5
0.83
0.0454
1
1.8
0.72
2.3
0.65
2.5
1.2
0.0479
1
1.8
1.19
0.0311 < 1
2.5
1.06
0.0895 < 1
3.1
1.42
2.3
1.12
2.6
1.68
0.0409
1
2
1.3
0.0344
2

avg
Nov-18
2.5
0.4
0.0385 < 1
1.3
0.55
2.1
0.73
0.8
1.5
0.0566
42.8
1.2
1.01
0.0503
1
0.5
1.3
0.0349
4.1
1.686957
1.00913
0.04662
1.792127
1
1.36
1.5
1.16
1
1.58
0.0201
1
0.9
4.1
0.0223
1
1.4
0.89
0.0259 < 1
1
0.89
1.5
1.16
H
1
0.67
0.0236
103.6
0.7
0.72
3.05
1.2
0.99
0.0342 < 1
0.9
0.72
0.0213
1
0.57
0.0269
1
1.2
0.42
0.0252
1
1
1.47
0.0238
1
H
H
2.7
0.64
0.0266
1
2.7
0.4
0.0284
1
1.7
0.62
0.019
1
1
0.64
1.5
0.7
avg 1.310526 1.036842 0.024775 1.615493

Dec-18
1.8
1.24
0.0448 < 1
1.2
0.98
0.0293 < 1
1.4
0.78
0.0355 2
1
0.65
2.6
0.59
2.1
0.8
0.0496 1
1.5
0.63
0.0417 1
0.9
0.5
0.0497 < 1
0.9
0.4
0.9
1
0.2
1.18
0.0393 2
0.4
0.97
0.0416 2
0.2
0.9
0.0419 < 1
0.7
1.07
1.1
1.62
H
H
H
H
H
H
1.2
1.54
0.0192 2
1
1.5
0.0201 < 1
avg 1.105556 1.05 0.037518 1.286665
Yearly avg . 1.276549 1.300711 0.061259 4.257368421
TSS BOD NH3 Enterococcus
3 year average 1.43039 1.458301 0.061404 2.322952419
Geometric Mean 1.561036355

PermitNCO026611
NPDES Implementation of Instream Dissolved Metals Standards — Saltwater Standards
The NC 2007-2015 Water Quality Standard (WQS) Triennial Review was approved by the NC
Environmental Management Commission (EMC) on November 13, 2014. The US EPA subsequently
approved the WQS revisions on April 6, 2016, with some exceptions. Therefore, metals limits in draft
permits out to public notice after April 6, 2016 must be calculated to protect the new standards - as
approved.
TnhhP I _ N('. Discnlved'Metals Water Ouality Standards/Aquatic Life Protection
Parameter
Acute FW, µg/I
(Dissolved)
Chronic FW, µg/I
(Dissolved)
Acute SW, µg/1
(Dissolved)
Chronic SW, µg/1
(Dissolved)
Arsenic
340
150
69
36
Beryllium
65
6.5
---
---
Cadmium
Calculation
Calculation
40
8.8
Chromium III
Calculation
Calculation
---
---
Chromium VI
16
11
1100
50
Copper
Calculation
Calculation
4.8
3.1
Lead
Calculation
Calculation
210
8.1
Nickel
Calculation
Calculation
74
8.2
Silver
Calculation
0.06
1.9
0.1
Zinc
Calculation
Calculation
90
81
Table 1 Notes:
1. FW= Freshwater, SW= Saltwater
2. Calculation = Hardness dependent standard
3. Only the aquatic life standards listed above are expressed in dissolved form. Aquatic life
standards for Mercury and selenium are still expressed as Total Recoverable Metals due to
bioaccumulative concerns (as are all human health standards for all metals). It is still necessary
to evaluate total recoverable aquatic life and human health standards listed in 15A NCAC
213.0200 (e.g., arsenic at 10 µg/l for human health protection; cyanide at 5 µg/L and fluoride at
1.8 mg/L for aquatic life protection).
General Information on the Reasonable Potential Analysis (RPA)
The RPA process itself did not change as the result of the new metals standards. However, application of
the dissolved metal standards requires additional consideration in order to establish the numeric standard
for each metal of concern of each individual discharge. Note that none of the saltwater standards are
hardness -dependent.
Metals limits must be expressed as `total recoverable' metals in accordance with 40 CFR 122.45(c). The
discharge -specific standards must be converted to the equivalent total values for use in the RPA
calculations. We will generally rely on conversion factors determined by EPA (more on that below), but it
is also possible to consider case -specific translators developed in accordance with established
methodology.
RPA Permittin Guidance — Dischar es to Saltwater Tidal waters
The RPA is designed to predict the maximum likely effluent concentrations for each metal of concern,
based on recent effluent data, and calculate the allowable effluent concentrations, based on applicable
standards and the stream dilution. For discharges to saltwater, no allowance for dilution is given unless a
dilution study, such as a CORMIX model, is performed.
If the maximum predicted value is greater than the maximum allowed value (chronic or acute), the
discharge has reasonable potential to exceed the standard, which warrants a permit limit in most cases. If
monitoring for a particular pollutant indicates that the pollutant is not present (i.e. consistently below
detection level), then the Division may remove the monitoring requirement in the reissued permit.
Page 1 of 3

Permit NC0026611
1. To perform a RPA using the saltwater dissolved metal standards, the Permit Writer compiles the
following information:
• Permitted flow
• Receiving stream classification
• Instream Wastewater Concentration, if a dilution model has been performed
2. The RPA spreadsheet converts the dissolved numeric standard (SW standards listed in Table 1.)
for each metal of concern to a total recoverable metal, using the EPA conversion factors
published in the June,1996 EPA Translator Guidance Document. This method presumes that the
metal is dissolved to the same extent as it was during EPA's criteria development for metals.
Conversion Factors for Dissolved. Metals.
Saltwater CMC
Saltwater CCC
Metal
cute(chronic)
Arsenic 1.000
1.000
Cadmium 0.994
0.994
Chromium VI 0.993
0.993
Copper 0.83
0.83
Lead 0.951
0.951
Mercury 0.85
0.85
Nickel 0.990
0.990
Selenium 0.998
0.998
Silver 0.85
—
Zinc 0.946
0.946
From: US EPA website, National Recommended Water Quality
Criteria - Aquatic Life Criteria Table
httsss://www.epa.p,ov/wqc/nationa I-recommen ded-water-
ualit -criteria-a uatic-life-criteria-table#a
3. The dissolved numeric standard for each metal of concern is divided by the EPA conversion
factor (or site -specific translator) to obtain a Total Recoverable Metal at ambient conditions.
4. If a dilution study was performed on the receiving stream and an histream Wastewater
Concentration (IWC) determined the RPA spreadsheet uses a mass balance equation to determine
the total allowable concentration (permit limits) for each pollutant using the following equation:
Ca = (s7O10 + Ow) (Cwgs) — WOW) (Cb)
QW
Where: Ca = allowable effluent concentration (µg/L or mg/L)
Cwqs = NC Water Quality Standard or federal criteria (µg/L or mg/L)
Cb = background concentration: assume zero for all toxicants except NH3* (µg/L or mg/L)
Qw = permitted effluent flow (cfs, match 7Q10 units)
s7Q10 = summer, critical low flow (cfs)
* Discussions are on -going with EPA on how best to address background concentrations
Assuming no background concentration, this equation can be reduced to:
Ca = WOW + Ow) (Cwgs) or Ca = Cwtis
Qw IWC
Page 2 of 3

PermitNCO026611
Where: IWC Ow or 1
Qw + s7Q10 D
and D = modelled dilution factor (unitless)
If no dilution study has been performed Ca, the allowable effluent concentration, is equal to the
Total Recoverable Metal determined at ambient conditions (ie. the dissolved numeric standard
divided by the EPA conversion factor (or site -specific translator) for the metal of concern). See
item # 3 above.
5. The permit writer enters the most recent 2-3 years of effluent data for each pollutant of concern.
Data entered must have been taken within four and one-half years prior to the date of the permit
application (40 CFR 122.21). The RPA spreadsheet estimates the 95th percentile upper
concentration of each pollutant. The Predicted Max concentrations are compared to the Total
allowable concentrations to determine if a permit limit is necessary. If the predicted max exceeds
the acute or chronic Total allowable concentrations, the discharge is considered to show
reasonable potential to violate the water quality standard, and a permit limit (Total allowable
concentration) is included in the permit in accordance with the U.S. EPA Technical Support
Document for Water Quality -Based Toxics Control published in 1991.
6. When appropriate, permit writers develop facility specific compliance schedules in accordance
with the EPA Headquarters Memo dated May 10, 2007 from James Hanlon to Alexis Strauss on
40 CFR 122.47 Compliance Schedule Requirements.
7. The Total Chromium NC WQS was removed and replaced with a hexavalent chromium standard.
As a cost savings measure, total chromium data results may be used as a conservative surrogate in
cases where there are no analytical results based on chromium VI. In these cases, the projected
maximum concentration (95th %) for total chromium will be compared against the water quality
standard chromium VI.
Page 3 of 3

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REASONABLE POTENTIAL ANALYSIS - DATA
J
Arsenic
`"''''` '""" ��rY'
AS SPMIV:SI 4�5
paMs = 5E
Cadmium
Date Data
BDL=1/2DL
Results
Date Data
BDL=112DL
Results
1
1116/2014
1 1
Std Dev.
2.3094
1
11/6/2014 <
10 5
Std Dev.
2
8/14/2015 <
10 5
Mean
3.6667
2
8/14/2015 <
10 5
Mean
3
8/8/2016 <
10 5
C.V.(default)
0.6000
3
8/8/2016 <
10 5
C.V.(default)
4
n
3
4
n
5
5
6
Mult Factor =
3.0000
6
Mult Factor =
7
Max. Value
5.0 ug/L
7
Max. Value
8
Max. Pred Cw
15.0 ug/L
8
Max. Fred Cw
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
31
31
32
32
33
33
34
34
35
35
36
36
37
37
38
38
39
39
40
40
41
41
42
42
43
43
44
44
45
45
46
46
47
47
48
48
49
49
50
50
51
51
52
52
53
53
54
54
55
55
56
56
57
57
58
58
1 a4:es" then `GGr •'
Ma��m�m tlar�
�amh = Sd
5.0000
0.6000
3
3.0000
5.00 ug/L
15.00 ug/L
RPA update metals 2016 - 2019,data
Date)

REASONABLE POTENTIAL ANALYSIS - DATA
Total Phenolic Compounds
--
""1e'-'I"*-°iPy
e4ermum awa
pc rims • 6a
Chromium, Total
Date
Data BDL=1/2DL
Results
Date
Data BDL=112DL
Results
1 11/1312014
4 5
Std Dev.
OWN
1
11/6/2014
< 10 5
Std Dev.
2 811312015
5 5
Mean '
5.0000
2
8/14/2015
< 10 5
Mean
3 8/412016
4 5
C.V. (default)
O.6D00
3
8/8/2016
< 10 5
C.V. (default)
4
n
3
4
n
5
5
6
Mult Factor =
3.0000
6
Mult Factor =
7
Max. Value
5.0 ug/L
7
Max. Value
8
Max. Fred Cw
15.0 ug/L
8
Max. Pred Cw
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
31
31
32
32
33
33
34
34
35
35
36
36
37
37
38
38
39
39
40
40
41
41
42
42
43
43
44
44
45
45
46
46
47
47
48
48
49
49
50
50
51
51
52
52
53
53
54
54
55
55
56
56
57
57
58
58
Values" Urn "CONY"
. hkxmwm Clair
paNlt► a SA
0.00C.a
5.0000
0.6000
3
3.0000
5.0 ug/L
15.0 ug/L
RPA update metals 2016 - 2019,data
Date}

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
REASONABLE POTENTIAL ANALYSIS - DATA
Copper
ve�uc_ tntn cJPv
Cyanide
rx
-•
. 6'.aximum aalo
— —
- -
Maxrmvdata
m3•trier.m data
paints : 6
pow. - U
Date Data
BDL=1/2DL
Results
I
Date Data
BDL=1/2DL
Results
812/2016
17
17
Std Dev.
6.3788
1
11/7/2014 <
5 5
Std Dev.
0.0000
11/1/2016
15
15
Mean
9.7500
2
8/17/2015 <
5 5
Mean
5.0000
2/7/2017
12
12
C.V.
0.5517
3
8/9/2016 <
5 5
C.V.(default)
0.6000
5/2/2017
13
13
n
12
4
n
3
8/812017
19
19
5
11/7/2017 <
10
5
Mutt Factor =
1.5700
6
Mutt Factor =
3.0000
2/6/2018
11
11
Max. Value
19.00 ug/L
7
Max. Value
5.0 uglL
5/8/2018 <
10
5
Max. Pred Cw
29.83 ug/L
8
Max. Pred Cw
15.0 ug/L
8/7/2018 <
10
5
9
11/612018 <
10
5
10
3/2612019 <
10
5
11
4/212019 <
10
5
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
RPA update metals 2016 - 2019,data
Date)

REASONABLE POTENTIAL ANALYSIS - DATA
Lead
• Cof
Nickel
Vaims' u,an'COFir
I
M.xim,nn aar.
. WImJr nam rtM
pans • 5!
paints • Stl
Date Data
BDL=1/2DL
Results
Date Data
BDL=1/2DL
Results
1 11/6/2014 <
1 0.5
Std Dev.
2 5981
1
8/2/2016 <
10
5
Std Dev.
i GD65
2 8/14/2015 <
10 5
Mean
3.5000
2
11/1/2016 <
10
5
Mean
8.0000
3 8/8/2016 <
10 5
C.V.(defauft)
0.6000
3
217/2017 <
10
5
C.V.
0.8758
4
n
3
4
512/2017 <
10
5
n
12
5
5
818/2017
11
11
6
Mutt Factor =
3.00
6
1117/2017 <
10
5
Mutt Factor =
1.9400
7
Max. Value
5.00 ug/L
7
216/2018
11
11
Max. Value
29.00 ug/L
8
Max. Pred Cw
15.00 ug/L
8
5/8/2018
29
29
Max. Pred Cw
56.26 ug/L
9
9
8/7/2018 <
10
5
10
10
11/6/2018 <
10
5
11
11
3/26/2019 <
10
5
12
12
4/2/2019 <
10
5
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
31
31
32
32
33
33
34
34
35
35
36
36
37
37
38
38
39
39
40
40
41
41
42
42
43
43
44
44
45
45
46
46
47
47
48
48
49
49
50
50
51
51
52
52
53
53
54
54
55
55
56
56
57
57
58
58
RPA update metals 2016 - 2019,data
Date)

REASONABLE POTENTIAL ANALYSIS - DATA
Selenium
Vanat%-T% i�" opf'
Silver
va��n: s"tm: r. ^(.UD1
MaN:num data
H.axiafum tlata
_
{tD1fd. z S`.
piNhiS = 1-6Date
Data
BDL=112DL
Results
Date Data
BDL=112DL
Results
1
11/6/2014
3 3
Std Dev.
1.1547
1
11/6/2014 <
1 0.5
Std Dev.
2.5961
2
8/14/2015 <
10 5
Mean
4.3333
2
8/14/2015 <
10 5
Mean
3.5000
3
8/6/2016 <
10 5
C.V. (default)
0.6000
3
8/8/2016 <
10 5
C.V. (default)
0.6000
4
n
3
4
n
3
5
5
6
MultFactor=
3.0000
6
MultFactor=
3.0000
7
Max. Value
5.0 ug/L
7
Max. Value
5.00 ug/L
8
Max. Pred Cw
15.0 ug/L
8
Max. Fred Cw
15.00 ug/L
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
31
31
32
32
33
33
34
34
35
35
36
36
37
37
38
38
39
39
40
40
41
41
42
42
43
43
44
44
45
45
46
46
47
47
48
48
49
49
50
50
51
51
52
52
53
53
54
54
55
55
56
56
57
57
58
58
RPA update metals 2016 - 2019,data
Date)

Date Data
1 8/212016
2 11/1/2016
3 217/2017
4 5/2/2017
5 8/8/2017
6 11/7/2017 <
7 2/612018
8 5/8/2018
9 8/7/2018
10 1116/2018
11 3/26/2019
12 4/2/2019
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
REASONABLE POTENTIAL ANALYSIS - DATA
Zinc
�-
Ixwr�wn
data
puirnx . 59
BDL=1l2DL
Results
16 16
Std Dev.
J 8B3
18 18
Mean
24.6667
30 30
C.V.
0.3725
23 23
n
12
25 25
10 5
Mutt Factor =
1.3700
36 36
Max. Value
36.0 ug/L
23 23
Max. Fred Cw
49.3 ug/L
21 21
28 28
36 36
35 35
di-n-butyl phthalate
Date Data BDL=1/2DL Results
1 8/212016 < 5.15 2.575 Std Dev.
2 1111/2016 < 9.62 4.81 Mean
3 2/7/2017 < 1 0.5 C.V.
4 5/212017 < 5 2.5 n
5 8/812017 < 1 0.5
6 11/7/2017 < 1 0.5 Mint Factor =
7 2/6/2018 < 5.1 2.55 Max. Value
8 5/8/2018 < 1.92 0.96 Max. Fred Cw
9 8/712018 < 1 0.5
10 11/6/2018 < 5.43 2.715
11 3/26/2019 < 1 0.5
12 4/2/2019 < 1 0.5
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
Yaiw s- trwn 'CCPr
Wa Imam day
wr"-U
1.410-'
1.5925
0.8856
12
1.9500
4.81000 pg/L
9.37950 pg/L
RPA update metals 2016 - 2019,data
Date}

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NH3/TRC WLA Calculations
Facility: Morehead City W WTP
PermitNo. NCO026611
Prepared By: Nick Coco
Enter Design Flow (MGD): 2.5
Enter s7Q10 (cfs): 0
Enter w7Q10 (cfs): 0
Total Residual Chlorine (TRC)
Daily Maximum Limit (ug/1)
s7Q10 (CFS)
0
DESIGN FLOW (MGD)
2.5
DESIGN FLOW (CFS)
3.875
STREAM STD (UG/L)
17.0
Upstream Bkgd (ug/1)
0
IWC (%)
100.00
Allowable Conc. (ug/l)
17
Same as in current
permit. Limit used
Ammonia (Summer)
Monthly Average Limit (mg NH3-N/1)
s7Q10(CFS)
0
DESIGN FLOW (MGD)
2.5
DESIGN FLOW (CFS)
3.875
STREAM STD (MG/L)
1.0
Upstream Bkgd (mg/1)
0.22
IWC (%)
100.00
Allowable Conc. (mg/1)
1.0
Same as in current permit. Limit used
Ammonia (Winter)
Monthly Average Limit (mg NH3-N/1)
Fecal Coliform
w7Q10 (CFS)
0
Monthly Average Limit:
200/100.-., DESIGN FLOW (MGD)
2.5
(If DF >331; Monitor)
DESIGN FLOW (CFS)
3.875
(If DF<331; Limit)
STREAM STD (MG/L)
1.8
Dilution Factor (DF)
1.00 Upstream Bkgd (mg/1)
0.22
IWC (%)
100.00
Allowable Conc.-(mg/1)
1.8
Limit consistent with current permit. No change recommended.
Total Residual Chlorine
1. Cap Daily Max limit at 28 ug/I to protect for acute toxicity
Ammonia as NH3-N
1. If Allowable Conc > 35 mg/I, Monitor Only
2. Monthly Avg limit x 3 = Weekly Avg limit (Municipals)
3. Monthly Avg limit x 5 = Daily Max limit (Non-Munis)
If the allowable ammonia concentration is > 35 mg/L, no limit shall be imposed
Fecal Coliform
1. Monthly Avg limit x 2 = 400/100 ml = Weekly Avg limit (Municipals) = Daily Max limit (Non -Muni)

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Final 2016 Category 5 Assessments-303(d) list
En Wroi~ntl White Oak River Subbasin White Oak River Basin
Assessment Unit Name Assessment Unit Description ...
Assessment Unit Number
Calico Creek
21-32a
Water Quality Classification Length/Area Units
From source to Ut on south side of creek 0.35 miles west of SR1176
bridge.
Assessment Criteria Status
Reason for Rating
Exceeding Criteria
> 10% and >90 conf
Exceeding Criteria
> 10% and >90 conf
Exceeding Criteria
> 10% and >90 conf
Exceeding Criteria
> 10% and >90 conf
SC; H QW
Parameter of Interest
Turbidity (25 NTU, AL, FW acres & SW)
Chlorophyll a (40 jig/I, AL, NC)
Dissolved Oxygen (5 mg/I, AL, SW)
Copper (3 µg/I, AL, SW)
36.6 S Acres
IR Category
5
5
5
5
Calico Creek From Ut on south side of creek 0.35 miles west of SR1176 bridge to
Newport River
21-32b SC;HQW 103.6 S Acres
Assessment Criteria Status Reason for Rating Parameter of Interest IR Category
Exceeding Criteria > 10% and < 90% conf Copper (3 jig/I, AL, SW) 5e
Exceeding Criteria > 10% and >90 conf Chlorophyll a (40 µg/I, AL, NC) 5
Clay Bank Branch From source to Freeman Creek
19-41-5-2 SA;HQW 1.0 S Acres
.Assessment Criteria Status Reason for Rating Parameter of Interest IR Category
Exceeding Criteria SH CAO Shellfish Growing Area Status (Fecal, SH, SA) 5
Core Creek (Intracoastal Waterway From DEH closed line to DEH Conditionally Approved Closed line
21-24b1 SA;HQW 212.0 S Acres
ssessment Criteria Status Reason for Rating Parameter of Interest IR Category
Exceeding Criteria SH CAC Shellfish Growing Area Status (Fecal, SH, SA) 5
Core Creek (Intracoastal Waterway From DEH closed line to DEH Conditionally Approved Closed line
21-202 SA;HQW
Issessment Criteria Status Reason for Rating
Exceeding Criteria SH CAO
Parameter of Interest
Shellfish Growing Area Status (Fecal, SH, SA)
14.9 S Acres
IR Category
5
"% Final 2016 NC Category 5 Assessments Page 138 of 196

United States Environmental Protection Agency Form Approved.
FEPA 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 1_� N � 2 15 1 3 NCO026611 � 11 12 16/07/12 j 7 18 L�j 19 I G I 20 (
211111111 111111111111111111 1 111111 111111111 11 r6
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved
67 70 L 71 I I 72 I N I 73 I I 174 751 I I I I I I I80
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES aermlt Number)
Morehead City WWTP
1000 Treatment Plant Rd
Morehead City NC 28557
n
Entry Time/Date Permit Effective Date
10:50AM 16/07/12 1 13/04/01
Exit Time/Date I Permit Expiration Date
01:40PM 16/07/12 17/07/31
Name(s) of Onsite Representative(s)/Tities(s)/Phone and Fax Number(s) Other Facility Data
///
Name, Address of Responsible Officiallritle/Phone and Fax Number
Contacted
Daniel K Williams,706 Arendell St Morehead City NC 285574234/Public Utilities
No
Directorl252-726-6848/2527262267
I Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit ■ Flow Measurement Operations & Maintenance Records/Reports
Self -Monitoring Program ■ Sludge Handling Disposal 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
Tom Thamngton VVIRO WQ///
Helen I Perez WIRO WQ//910-796-7387/
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers
Morelia Sanchez -King WIRO WQ//910-796-7218/
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Date
Date
Page# 1

NPDES yr/mo/day Inspection Type (Cont.)
31 NC0026611 I11 121 16/07/12 117 18 ICI
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
This facility is clean and well maintained, staff have operational protocols in place to reliability produce
a high quality effluent. The treatment process is occasionally impacted by high wastewater influent
flows associated with storm events and collection system inflow and infiltration. The staff typically
addresses these events by proactive actions such as tertiary sand filter maintenance to optimize filter
run times and clarifier sludge blanket monitoring and sludge withdrawal line cleaning. During these high
flow events the brush rotors in the oxidation ditches are shutdown for periods of time to settle sludge
within the ditch and to prevent solids overloading on the secondary clarifiers. This action can result in
elevated effluent ammonia levels depending on the amount of time the brush rotors are off-line.
One of the two aerobic sludge digesters was recently cleaned and debris and accumulated sediment
was removed from the tank, plans are in place to clean the remaining digester in the near term. It is
hoped that the cleaning will improve digester performance and increase the frequency and volume of
supernatant decanting.
The remaining comments for specific process equipment are located in the questions section of this
report.
Page#

Permit: NCO026611 Owner - Facility: Morehead City WVVTP
Inspection Date: 07/12/2016 Inspection Type: Compliance Evaluation
Permit
Yes No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new
❑
❑
❑
❑
application?
Is the facility as described in the permit?
i
❑
❑
❑
# Are there any special conditions for the permit?
0
❑
❑
❑
Is access to the plant site restricted to the general public?
0
❑
❑
❑
Is the inspector granted access to all areas for inspection?
a
❑
❑
❑
Comment: Special conditions include notification made to Marine Fisheries Shellfish Sanitation and
Recreational Water Quality after the release of partially treated wastewater. There is also a
requirement for the notification of the Regional Office if the UV disinfection system should fail
and re4uire alternative disinfection means.
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? ■ ❑ ❑ ❑
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable B ❑ ❑ ❑
Solids, pH, DO, Sludge Judge, and other that are applicable?
Comment: The operations staff test for MLSS levels daily as well as perform microscopic evaluation of
the mixed liquor. Secondary clarifier sludge blanket levels are monitored multiple times each
day. MLSS levels of 5.200 mg/I to 5.500 ma/1 result in the best plant performance.
Pump Station - Influent
Yes No NA NE
Is the pump wet well free of bypass lines or structures?
0
❑
❑
❑
Is the wet well free of excessive grease?
®
❑
❑
❑
Are all pumps present?
❑
❑
❑
Are all pumps operable?
❑
❑
❑
Are float controls operable?
❑
❑
❑
Is SCADA telemetry available and operational?
❑
❑
❑
Is audible and visual alarm available and operational?
■
❑
❑
❑
Comment: Dual VFD driven pumps are used to convey wastewater to the headworks structure_
mechanical screening is located at two (2) collection system pump
stations immediately
uystream from this station. A high level float switches the VFD pumps into a manual "on"
position during high level conditions. The control system will notify
operators if abnormal
conditions occur.
Influent Sampling Yes No NA NE
# Is composite sampling flow proportional? ❑ ❑ ❑
Is sample collected above side streams? ❑ ❑ ❑
Is proper volume collected? ❑ ❑ ❑
Page# 3

Permit: NCO026611 Owner - Facility: Morehead City WWTP
Inspection Date: 07/12/2016 Inspection Type: Compliance Evaluation
Influent Sampling
Yes No NA NE
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?
■
❑
1111
Comment: Samuler refrigerator was at 3°C. all tubing and containers were clean.
Bar Screens
Yes No NA NE
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?
0 ❑
❑
❑
Comment: Two (2)_ collection system pump
stations convey wastewater to the treatment headworks
structure. each station has both mechanical and manual barscreens. During this inspection
the screen mechanisms at Pump
Station #10 were evaluated. Screenings were deposited
into a rolling dumpster on a drained Dad.
Grit Removal
Yes No NA NE
Type of grit removal
a.Manual
❑
b.Mechanical
Is the grit free of excessive organic matter?
❑
❑
❑
Is the grit free of excessive odor?
01111
# Is disposal of grit in compliance?
❑
❑
❑
Comment: The site uses a Lakeside "Raptor" ,grit classifier for -grit removal.
Oxidation Ditches
Yes
No NA NE
Are the aerators operational?
r_
❑
❑
❑
Are the aerators free of excessive solids build up?
0
❑
❑
❑
# Is the foam the proper color for the treatment process?
❑
❑
❑
Does the foam cover less than 25% of the basin's surface?
❑
❑
❑
Is the DO level acceptable?
■
❑
❑
❑
Are settleometer results acceptable (> 30 minutes)?
❑
❑
❑'
Page# 4

Permit: NCO026611
Inspection Date: 07/12/2016
Oxidation Ditches
Is the DO level acceptable?(1.0 to 3.0 mg/1)
Are settelometer results acceptable?(400 to 800 ml/I in 30 minutes)
Owner - Facility: Morehead City WNrrP
Inspection Type: Compliance Evaluation
Yes No NA NE
Comment: The dual oxidation ditches run in an anaerobic. to anoxic to oxic mode. the first ditch runnin
only it's 1st brush rotor for mixing purposes and the 2nd ditch currently running all brush
rotors in the summer months. Nitrate recycle is through a wall sate and from RAS return
rate.
Nutrient Removal Yes No NA NE
# Is total nitrogen removal required? 0 ❑ ❑ ❑
# Is total phosphorous removal required? ❑ M ❑ ❑
Type
# Is chemical feed required to sustain process? 0 ❑ ❑ ❑
Is nutrient removal process operating properly? a ❑ ❑ ❑
Comment: The facility does not have a phosphorus limit but does monitor and report weekly, licluid alum
is used to enhance co -precipitation in addition to the biological removal occurring at the
anaerobic selector and through sludge wasting
Secondary Clarifier
Is the clarifier free of black and odorous wastewater?
Is the site free of excessive buildup of solids in center well of circular clarifier?
Are weirs level?
Is the site free of weir blockage?
Is the site free of evidence of short-circuiting?
Is scum removal adequate?
Is the site free of excessive floating sludge?
Is the drive unit operational?
Is the return rate acceptable (low turbulence)?
Is the overflow clear of excessive solids/pin floc?
Is the sludge blanket level acceptable? (Approximately Y4 of the sidewall depth)
Yes No NA NE
W ❑ ❑ ❑
❑ ❑ M ❑
❑ ❑ ❑
❑ ❑ ❑
❑ ❑ ❑
❑ ❑ ❑
1 ❑ ❑ ❑
I, ❑ ❑ ❑
■❑❑❑
❑ ❑ ❑
Comment: The clarifiers are Lakeside Spiraflo pedrheral feed type clarifiers with no centerwell.
Operations staff monitors sludge blanket depth multiple times each day. The effluent
appearred clear with no visible solids.
Pumps-RAS-WAS Yes No NA NE
Are pumps in place? ❑ ❑ ❑
Are pumps operational? ❑ ❑ ❑
Page# 5

Permit: NCO026611 Owner - Facility: Morehead City WWrP
Inspection Date: 07/12/2016 Inspection Type: Compliance Evaluation
Pumps-RAS-WAS Yes No NA NE
Are there adequate spare parts and supplies on site? ❑ ❑ ❑
Comment: No comment
Filtration (High Rate Tertiary
Yes No NA NE
Type of operation:
Down flow
Is the filter media present?
M ❑
❑
❑
Is the filter surface free of clogging?
N ❑
❑
❑
Is the filter free of growth?
❑
❑
❑
Is the air scour operational?
❑ ❑
E; .
❑
Is the scouring acceptable?
❑ ❑
❑
Is the clear well free of excessive solids and filter media?
It ❑
❑
❑
Comment: The site has dual traveling bridge sand filters, the filters are drained, surface skimmed and
then hypochlorinated on a rotating schedule to keep the units clean.
Disinfection - UV
Yes No NA NE
Are extra UV bulbs available on site?
E
❑
❑
❑
Are UV bulbs clean?
E
❑
❑
❑
Is UV intensity adequate?
E
❑
❑
❑
Is transmittance at or above designed level?
❑
❑
❑
r-
Is there a backup system on site?
❑
�r
❑
❑
Is effluent clear and free of solids?
-
❑
❑
❑
Comment: The facility has three (3) Trojan 3000PIus UV units operated in series with one lead unit. one
laa unit and one standby unit, they are controlled by flow rate through the facility or b,
manual selection. The unit in the "lead" position is alternated to extend bulb life.
Effluent Sampling
Yes No NA NE
Is composite sampling flow proportional?
❑
❑
❑
Is sample collected below all treatment units?
❑
❑
❑
Is proper volume collected?
❑
❑
❑
V
Is the tubing clean?
E
❑
❑
❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
0
❑
❑
❑
Celsius)?
Is the facility sampling performed as required by the permit (frequency, sampling type
■
❑
❑
❑
representative)?
Comment: Autosampler refrigerator was at 3°C.
Page#
6

Permit: NCO026611
inspection Date: 07/12/2016
Effluent Sampling
Aerobic Digester
Is the capacity adequate?
Is the mixing adequate?
Is the site free of excessive foaming in the tank?
# Is the odor acceptable?
# Is tankage available for properly waste sludge?
Owner -Facility: Morehead City WWTP
Inspection Type: Compliance Evaluation
Yes No NA NE
Yes No NA NE
■ ❑ ❑ ❑
■ ❑ ❑ ❑
4 ❑ ❑ ❑
■❑❑❑
ff ❑ ❑ ❑
Comment: One of the two digesters has recently been cleaned to remove any accumulated
sediment/sand in the tank. This material will be mixed with Class A and Class B biosolids
prior to dis osal as a Class B Residual. The other digester will be cleaned in the near future.
Standby Power
Yes No NA NE
Is automatically activated standby power available?
W ❑
❑
❑
Is the generator tested by interrupting primary power source?
❑
❑
❑
Is the generator tested under load?
❑
❑
❑
Was generator tested & operational during the inspection?
❑
❑
❑
Do the generator(s) have adequate capacity to operate the entire wastewater site?
❑
❑
❑
Is there an emergency agreement with a fuel vendor for extended run on back-up power?
❑ ❑
❑
Is the generator fuel level monitored?
❑
❑
❑
Comment: No comment
Laboratory
Yes No NA NE
Are field parameters performed by certified personnel or laboratory?
❑
❑
❑
Are all other parameters(excluding field parameters) performed by a certified lab?
❑
❑
❑
# Is the facility using a contract lab?
®
❑
❑
❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
N
❑
❑
❑
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? ❑ ❑ ❑
Comment: The laboratory maintains Field Parameter Certification (#19). they perform some wet
chemistry testing as well as field parameter testing and process control testing. Envirochem
and ETS contract laboratories are also used. All buffers and reagents inspected were within
expiration dates.
Page# 7

Town 1 Ci
706
Arendell Street ,sue
' � � hIOREHEAD CITY r
s. Morehead :
k /A I
MERCURY MINIMIZATION PLAN
June 28, 2019
SECTION I - PURPOSE
The purpose of this Mercury Minimization Plan ("MMP") is to describe best management practices
through which the Town of Morehead City will seek to reduce the amount of mercury discharged into its
system and, ultimately, to the environment. The MMP compiles mercury reduction -related efforts to -date
and potential future action items. It is designed to be a working document to help guide the Town of
Morehead City in its efforts to control mercury loadings discharged into its Publicly -Owned Treatment
Works (POTW) by users of the sewer system. Such a reduction in loadings to the sewer system should
translate to a reduction in the amount of mercury which is discharged from the treatment plant. The
management practices summarized below may also help control some of the mercury reaching our storm
sewer system as well.
SECTION II — FACILITY DESCRIPTION
The Town of Morehead City operates a publicly owned treatment works (POTW), including a collection
system and wastewater treatment plant (WWTP), that serves Morehead City, North Carolina.
The 2.5 MGD W WTP provides an advanced level of treatment that includes mechanical bar screens,
aerated grit removal, oxidation ditches with anoxic and anaerobic zones for nitrification and
denitrification, secondary clarifiers, tertiary filtration, UV disinfection and sludge digestion.
Most municipal treatment plants are not designed to remove mercury and it is exceedingly expensive to
do so to very low levels. Incidental mercury removal occurs through typical municipal treatment with
trace levels of mercury (and other metals) ending up in solids removed from the raw wastewater.
Mercury is not used in the treatment processes at the WWTP. Mercury may be introduced into the sewer
system through a variety of sources, such as from industrial users, laboratories, and other businesses.
Residual deposits of mercury are also possible in the sewer system from historic practices. Finally, trace
amounts from household products and atmospheric deposition (both wet and dry) contribute to sewer
system mercury loadings.
While there is typically some mercury contributed to public sewer systems statewide, it is usually in
minute quantities and comprises a tiny portion of the already insignificant statewide loading for all point
sources - just two percent of the annual mercury loadings to all State waters.

SECTION III — PROGRAM PLAN
A. EVALUATION OF POTENTIAL NON -DOMESTIC SOURCES CONTRIBUTING
MERCURY TO THE POTW
Within 24 months from the NPDES required 180-day period for development of an MMP, , the Town of
Morehead City will evaluate available information to assess the potential for non -domestic users of the
sewer system to contribute mercury to the system. The information to be reviewed may include: (1)
POTW influent and effluent mercury data and trends; (2) industrial user permits and associated mercury
monitoring data; (3) Toxics Release Inventory (TRI); (4) state hazardous site registry and the National
Priority List relating to mercury contamination; and (5) historical records of industrial sites which have
contributed mercury loadings to the sewer system.
The Town of Morehead City will also survey and evaluate the following common sources of mercury in
its service area: (1) dentist offices; (2) hospitals; (3) laboratories; (4) auto recyclers; and (5) other
potential sources of mercury based on existing information.
The Town of Morehead City will request that industrial users review mercury concentrations in high -
volume process chemicals and demonstrate that the mercury concentrations are below industry average.
The Town of Morehead City will request that alternative sources for chemicals be explored if the mercury
levels are determined to be significantly higher than would normally be expected.
The evaluation of potential non -domestic sources of mercury to the sewer system will be updated every
five years, as warranted by prior sampling results and any additional new potentially significant sources to
the system.
B. ADDITIONAL CONTROL MEASURES
This MMP identifies reasonable and cost-effective control measures to minimize mercury being
discharged into the POTW. Below is a listing of initial BMPs for this POTW.
Pollution Prevention
Substances used at the WWTP will be evaluated to determine if they contain mercury or mercury -based
compounds. Any such chemicals will be evaluated for substitution with non -mercury -containing
substances.
Housekeeping, Spill Control and Collection. and Education
The Town of Morehead City will develop procedures to minimize the possibility of any spill or release at
the WWTP involving mercury containing substances. The Town of Morehead City will add mercury
identification and proper disposal to ongoing and future operator training procedures.
Public Outreach
The Town of Morehead City will make available educational information regarding sources of household
mercury and appropriate use/disposal practices. This information may be posted on the Town of
Morehead City's website. The availability of this information will be highlighted in the Town of
Morehead City's outreach to its customers. The Town of Morehead City will also facilitate public

awareness regarding community collection points for mercury -containing products from
residents/customers for proper disposal. Periodic reminders of such collection programs will be provided
as part of Morehead City's ongoing public outreach.
Laboratory Practice
The Town of Morehead City operates a laboratory for purposes of complying with state and federal
monitoring and sampling requirements. The laboratory is a potential source of small quantities of
mercury -containing compounds. Laboratory employees will be trained in the proper handling and
disposal of these materials. The laboratories have also replaced mercury thermometers with non -mercury
thermometers, whenever practical.
Sewer Use Ordinance
In Section 32-148 — Excluded Wastes - Paragraph (c) states the following:
(c) No person shall discharge into any sewer forming part of the sanitary sewerage system, any of the
following materials in concentrations exceeding the stated limits:
(1) Any toxic or poisonous substance or any other materials in sufficient quantity to injure or interfere
with the wastewater treatment processes, or to constitute a hazard to humans or animals, or to cause a
violation of the water quality standards or effluent standards for the steam or watercourse receiving the
effluent from the city wastewater treatment plant.
While mercury is not explicitly identified as an excluded waste in the sewer use ordinance, mercury is a
toxic waste and is therefore excluded.
C. TRACKING AND MONITORING
In order to assess the implementation of the control measures, the Town of Morehead City proposes to
undertake the following evaluations beginning after the first full year that this MMP is implemented:
1. Survey annually at least ten percent (10%) of any non -domestic users identified as
possible significant sources of mercury to the POTW;
2. Track the implementation of the programs outlined above;
3. Monitor influent mercury at least annually. Require significant non -domestic sources of
mercury to monitor periodically, as warranted; and
4. Measure effluent mercury as required by the NPDES permit.
These efforts will allow the Town of Morehead City to establish a baseline of influent and effluent
mercury levels to assist in identifying any trends in mercury contributions from domestic and non -
domestic users of the sewer system. This baseline will be tracked annually.

SECTION IV — IMPLEMENTATION OF CONTROL MEASURES
Prior to this development of this Mercury Minimization Plan the Town of Morehead City has not
undertaken efforts to reduce the potential for mercury to enter the Town's WWTP. The town has no
industrial pretreatment program, and no mercury —containing equipment collection program. Development
of this Mercury Minimization Plan represents the Town's first step to protect the WWTP from mercury
discharge.
The Town of Morehead City will implement the control measures summarized in Section III over the
permit term and will update this MMP as warranted.
SECTION V - REPORTING
A summary of the MMP activities will be submitted as part of the NPDES permit renewal process.
APPENDIX A
Useful Web Links
Basic Information about Mercury - https://www.epa.gov/`mercuF-v/basic-information-about-mercury
How People are exposed to Mercury - https://www.epa.pov/mercury/how-people-are-exposed-mercury
How to Minimize Exposure to Mercury - https://www.epa.eovlmercury/mercury-your-environment-
ste s- ou-can-take#tab-2
Health Effects of Exposure to Mercury - https://www.epa.govjmercu[Yihealth-effects-exposures-
mercury
Mercury in Consumer Products - htilis://www.epa.gov/mercu[y/mercury-consumer-r)roducts
Cleaning Up a Broken CFL-https:/Iwww.epa.pov/cfl/cleaning-broken-cfl
What to Do if a Mercury Thermometer Breaks - httys:l/www.epa.gov/mercunylwhat-do-if-mercury-
thermometer-breaks
What to Do If You Have a Larger Mercury Spill - https://www.epa.gov/mercury/what-do-if-you-si ill -
more -mercury -amount -thermometer

APPENDIX B
List of Dentists in Morehead City
Comprehensive Dental Center
3705 Symi Cir
[phone]
Coastal Dentistry
405 N 35th St
[phone]
Oceanside Family Dentistry
4251 Arendell St Suite I
[phone]
Johnson Family Dentistry
409 N 35th St
[phone]
Wells Family Dentistry
208 Professional Cir
[phone]
Barrett Davis Jr. DDS Family Dentistry
304 Penny Ln
[phone]
Coastal Dentistry: Bradley Christopher DDS
405 N 35th St
[phone]
Lawrence Family Dentistry
3302 Bridges St H
[phone]
Westbrook Family Dentistry: Westbrook Kenneth L DDS
3708 Symi Cir
[phone]
Cherryl A. Davis, DDS PA
316 Commerce Ave
[phone]

Comprehensive Dental Center
3705 Symi Cir
[phone]
Dr. George T. Ward Jr, DDS
4251 Arendell St I
[phone]
Dr. Mary Moran Day, DDS
217 Professional Cir
[phone]
Lawrence II Denny T DDS
3302 Bridges St # H
[phone]
Cape Lookout Family Dental
218 Professional Cir
[phone]
David P Robertson, DDS
3002 Bridges St
[phone]
Eastern Carolina Oral & Maxillofacial Surgery; Dr. Armstrong
501 Penny Ln
[phone]
Dr. Cameron & Associates
3110 Arendell St Suite 3
[phone]
Dr. Richard W. Stevens, DDS
4251 Arendell St
[phone]
Paradise Dental
5380 Hwy 70 W suite d
[phone]

APPENDIX C
List of Medical Facilities in Morehead City
Carteret Health Care
3500 Arendell St
[phone]
BeachCare Urgent Care & Primary Family Medical Center, PLLC - Morehead City NC
5059 Hwy 70 W
[phone]
Broad Street Clinic
534 N 35th St K
[phone]
VA Morehead City Clinic
5420 US-70
[phone]
Nova Urgent Care -Carteret
4370 Arendell St
[phone]
Carteret Clinic Adol-Children
3510 John Platt Dr
[phone]
Broad Street Clinic: Rice Philip S MD
534 N 35th St K
[phone]
PORT HEALTH I Morehead City Clinic
3715 Guardian Ave
[phone]
RHA Health Services - Morehead City
3820 Bridges St b
[phone]
Carolinas Center for Pain Medicine
534 N 35th St
[phone]

Carteret Medical Group
302 Medical Park Ct
[phone]
Carteret Internal Medicine Center
212 Penny Ln # A
[phone]
CGH Imaging Center
3402 Arendell St
[phone]
Carolinas Center for Surgery
3714 Guardian Ave Suite E
[phone]
Wound Healing and Hyperbaric Center
3722 Bridges St
[phone]
Crystal Bluffs Rehabilitation and Health Care Center
4010 Bridges St
[phone]
Integrated Family Services
A, 3710 John Platt Dr
[phone]
CarolinaEast Heart Center
4252 Arendell St Suite E
[phone]
Le Chris Counseling Services Inc
3332 Bridges St
[phone]
Le Chris Counseling Services
140 Vashti Dr
[phone]
Carteret Health Care
3500 Arendell St
Carolinas Center for Surgery Urology Office
221-B Professional Cir
[phone]
Crystal Coast Family Practice
505 N 35th St
[phone]

Brady Birthing Center
3500 Arendell Street
P.O. Drawer 1619
Morehead City, NC 28557
FastMed Urgent Care
3722 Bridges St
(252) 6224033
Carteret Health Care: Emergency Room
3500 Arendell St
[phone]
New Visage
108 N llth St
[phone]
Maxim Healthcare Services
2900 Arendell St Unit 20
[phone]
Open Water Medical
3106 Arendell St
[phone]
The Surgical Center of Morehead City
3714 Guardian Ave Suite W
[phone]
Dr. William S. Futch Jr, MD
310 Commerce Ave
[phone]
Healy Joseph S MD
511 Penny Ln
[phone]
Carolinas Center for Surgery - General Surgery
306 Medical Park Ct
[phone]

APPENDIX D
List of Schools in Morehead Cit
Morehead City Middle School
400 Barbour Rd, Morehead City, NC 28557
Morehead City, NC
[phone]
Morehead Primary School
4409 Country Club Road, Morehead City, NC 28557
Morehead City, NC
[phone]
Morehead Elementary School
3316 Arendell Street, Morehead City, NC 28557
Morehead City, NC
[phone]
St Egbert's Catholic School
1705 Evans Street Morehead City, NC 28557
Morehead City, NC
[phone]
West Carteret High School
4700 Country Club Road, Morehead City, North Carolina 28557
Morehead City, NC
[phone]
Bridges Alternative School
140 Vashti Drive, Morehead City, North Carolina 28557
Morehead City, NC
[phone]
Morehead Elementary School at Camp Glenn
3316 Arendell Street, Morehead City, NC 28557
Carteret Community College
3505 Arendell St.
Morehead City, NC 28557
Center for Marine Sciences and Technology (CMAST)
303 College Circle
Morehead City, NC 28557
Carteret Occupational School
1108 Bridges St, Morehead City, NC 28557
Morehead City, NC
[phone]

APPENDIX E
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CONSULTINGANALYTICAL &
CHEMISTS
Environmental Chemists, Inc.
6602 Windmill Way • WiImingtory NC 28405
[phone] (Lab) • '[phone] (Fax)
710 Bowsertown Road • Manteo, NC 27954
[phone]
NCDENR: DWQ CERTMCATE #94..DL5 CERT MCAITE #37729
Town Of Morehead City
Date of Report: Nov 25, 2014
706 Arendell Street
Customer PO'#•
•
Morehead City NC
28567
Customer ID: 09020011
Attention: C. Sutton
Report #: 201.4-1361-5
Project ID: Wastewater
Lab ID Sample ID:Collect
Date/Titne Matrix _ Sampled by
14-33382 Site: Effluent
11/4/2014 8.15 AM Water C Sutton
Test
Method
Results Date Analyzed
Cadmium
EPA260.7
<0.010m /L
9
11/06/2014
Chromium
EPA 200.7
<0.010 mg/L
11 /0612014
Copper
EPA 200.7
0.012 mg/L
11 /06/2014
Nickel
EPA 200.7
0.018 mg/L
11/06/2014.
Zinc
EPA 200.7
0:022 mg/L
11/06/2014
_Antimony
EPA200s
< 0.001 mgn-
1116/2014
Arsenic
EPA20aa
0.001 mg/L
11/6/2014
Beryllium
EPA200.a
< 0.001 mg/L
11/7/2014
Lead
EPA200;5
< 0.001 mg/L
11/6/2014
Selenium
EPA20MIS
0.003mg/L
11/6/2014
Silver
EPA200.3
< 0.001 mg/L
1116/2014
Thallium
EPa2o0s
< 0.001 mg/L
111&2014
Ammonia Nitrogen
EPA350.1
< 0.2mg/L
11106,12014
Total Kjeldahl Nitrogen (TKN)
EPA35U.
0.5 nig/L
11/06/2014
Total Hardness
SM 2340 c
524 mg/L
11111/2014
Total Dissolved Solids (TDS)
sm 2sao c
2140 mg/L
11106/201-4
Total Phosphorus
SM4500PF
2.11 mg/L
11/06/2014
Nitrate Nitrogen (Cale)
Nitrite Nitrogen
EPA353.2
< 0.02 mg/L
11/05/2014
Nitrate+Nitrite-Nitrogen
EPA 353.2
6.24 mg/L
11/11/2014
Nitrate Nitrogen
Subtraction MetWd 6.24 mglL
11I1112014
Comment:
ReViewed
�l
b}r:
�-
Report#:i 2014-13616
Page 6 of 6

Environmental Chemists, Inc :o
l3 a G 9� 6602 Windmill Way Wilmington, NC 28405
[phone] (Lab) ' [phone] (Fax)
710 Bowsertown Road • Manteo, NC 27954
ANALYTICAL & CONSULTING [phone]
CHEMISTS NCDENR: DWQ CERTIFICATE #9 - DLS CII:' MCATE #37729
Town Of Morehead City
Date of Report: Nav 25, 2014
706 Arendell Street
CustomerPO #:
Morehead City NC 28557
Customer ID: 09020011
Attention: C. Sutton
Report #: 2014-13615
Project ID: Wastewater
Lab ID Sample ID:
Collect DatelTime. Matrix Sampled by
14-33380 Site: Effluent Grab
11/4/2014 8:16 AM Water C. Sutton
Test
Method
Results
Date Analyzed
LL Mercury
EPA 16318
<0.500 ng/L
11/10/2014
Oil & Grease (O&G)
EPA 16"
<5 mg/L
11105/2014
Cyanide
EPA 335.4
< 0.005 mg/L
11/07/2014
Inorganic Phenols
EPA420.1
0.004 mg/L
11/13/2014
Alachlor
EPA 608
<0.0.001 mg/L
11/0512014
Aldrin
EPA600
<0,0001 mg/L
11/06/2014
Alpha - BHC
EPA808
<0.0001 mg/L
11/05/2014
Aroclor -1016
EPA 6©a
<0.005 mg/L
11 /05/2014
Aroclor -1221
EPA 608
<0.005 mg/L
11/05/2014
Aroclor -1232
EPA 608
<0.005 mg/L
11/05/2014
Aroclor -1242
EPA 606
<0.005 mg/L
11/05/2014
Aroclor -1248
EPA 608
<0.005 mg/L
11 /0512014
Aroclor -1254
EPA 808
<0.005 mg/L
11/05/2014
Aroclor -1260
EPA 608
<0.005 mg/L
11/05/2014
Beta-BHC
EPA 508
<0.0001 mg/L
11/06/2014
Butachior
EPA 608
<0.001 mg/L
11/05/2014
Chlordane
EPA.e08
<0.005 mg/L
11/06/2014
DDD
EPA608
<0.0001 mg/L
11/05/2014
DDE
EPAfi08
<0.0001 mg/L
11/05/2014
DDT
EPA 608
<0.0001 mg/L
11/05/2014
Delta-BHC
EPA606
a0.0001 mg/L
11/05/2014
Dieldrin
EPA 608
<0.0001 mg/L
11/05/2014
Endosulfan I
EPA 608
<0.0001 mg/L
11/05/2014
Endosulfan II
EPA603
<0.0001 mg/L
11/05/2014
Endosulfan sulfate
EPA808
<0.0001 mg/L
11/05/201.4
Endrin
EPA 608
<0.0001 mg/L
11/65/2014
Report:: 2014-13615
Page i of 6

Environmental Chemists, Inc.
-
v Q 1
6602 Wmdmiili Way - Wilmington, NC 2W5
F ®
[phone] (Lab) • (910) 392A424 (Fax)
710 Bowsertown Road • Manteo, NC 27954
ANALYTICAL & CONSULTING
[phone]
CHEMISTS
NCDENR DWQ CBRTlPiCATE M, DLS CERTIFICATE #37729
Town Of Morehead City
Date of Report: Nov 25, 2014
706 Arendell Street
Gustomer PO #•
Morehead City NC 28557
Customer ID: 09020011
Attention: C. Sutton
Report #: 2014-13615
Project ID: Wastewater
Endrin aldehyde
EPA608
<0.0001 mg/L
11/05/2014
Gamma-BHC,
EPA608.
<0.0001 mg/L
11/05/2614
Heptachlor
EPA 608
<0.0001 mg/L
11/05/2014
Heptachlor epoxide
EPA908
c0.000'img/L
11/06/2014
Hexachlorocyclopentadiene
EPA608
<fl.0001 mg/L
11105/2014
Methoxychlor
EPA808
<0.0001 mg/L
11/05/2014
Metolachlor
EPA 608
<0.001 mg/L
11105/2014
Metribuzin
VA08
<0.0001 mg/L g
11/05/2014
Propachlor
EPA608
c0.001 mg/L
11105/2014
Simazine
EPA600
a0.0005 mg/L
11/05/2014
Toxaphene
EPA608
<0.005 mg/L
11/05/2014
1,1,1-Trichloroethane
EPA 624
<0..5 pq/L
1110512014
1,1,2,2-Tetrachloroethane
EPA 624
<0.5pg/L
11105/414
1,1,2 Trichloroethane
EPA824
<0.5 pg/L
11/06/2014
1,1-Dichloroethane
EPA824
<O.v� µg/L
11105/2014
1,1-Oichloroethene
EPA 624
<0.5 pg/L
11 /05/2014
1,2-Dichlorobenzene
EPA624
<0.5pg/L
11/05/2014
1,2-Dichloroethane
EPA 624
<0.5pg/L
111,05/2014
1,2-Dichloropropane
EPA624
<0.5 jig/L.
11/05/2014
1,3-Dichlorobenzene
EPA 624
<0.5pg/L
11105/2014
1.,4-Dichlorobenzene
EPA 624
<0.5 pg/L
11/06/2014
2-Chloroethylvinylether
EPA624
<0.5µg/L
11/0612014
Acroleln
EPA 624
<5 pg/L
11/0512014
Acrylonitrile
EPA 624
<5lig/L
11/05/2014
Benzene
EPA 624
<0.5pq/L
11/05/2014
Bromodichloromethane
EPA 624
<0.5pg/L
11/05/2014
Bromoform
EPA624
<0.5 pg/L
11/05/2014
Bromomethane
EPA s24
<0.5 pg/L
11/05/2014
Carbon Tetrachloride
EPA 824
<0.5 pg/L
11l05/2014
Chloiohenzene
EPA624
<0.5pg/L
11/05/2014
RepO►t t: 2014-13615
Page 2 of 0

Environmental Chemists, Inc.
11 0 6602 WmdraiR Way - Wilmington, NC 28405
392-0223 (Lab) 10) 392-4424 (Fax)
710 Bowsertown Road a Manteo, NC 27954
ANALYTICAL &CONSULTING [phone]
CHEMISTS NICDE-M- DWQ CMMCATE 694. DLS CMaMCATE 03M9
Town Of Morehead City Date of Report: Nov 26,264
706 Arendell Street customer PO
Morehead City NC 28557 Customer ID: 09020011
Attention; C. Sutton Report 2014-13615
Project ID: Wastewater
Chloroetheine EPA 624 <0,5 pg/L 11/05/2014
Chloroform EPA 624 <0.5 pg/L 11/05/2014
Chloromethane EPA 524
<0. 5 lJg1L 11/05/2014
cis-1,3-01thloropropene EPA U4 <0. 5 pg/L 11/0512014
Dibromochloromethane EPA 824
<6.6 tig/L 11/0512014
Ethylbenzene EPA 624 <0.5 pg/L 11/06/2014
M+P Xylen6 EPAGN <1 :0 pg/L 11/051-2014
Methylene chloride EPA 624 <0.5 pg/L 11/06/2014
ortho-Xylene EPA 824 <0.6 pg/L 11105/2014
Tetrachloroethene EPA 624 <0.6 pg/L 11/051-2014
Toluene EPA 624 -
<0.5 lig/L 11/05/.2014
Trans-12-Dichloroethene EPA s?A <0.5 pg/L 11/05/2014
trans-1,3-Dichloropropene EPA 624
<0.6 pg/L 11/05/2014
Teichloroethene EPA #24
<0.5 wg/L 11105/2014
Tdchlorofluoromethane EPA 624 -W.5 Pg/L 11 /05120 14
Vinyl chloride EPA 024 <0-5 pg/L 11105/2014
2,4,6-Trichlo'rophenol EPA n6
< pg/L 11/0512014
2,4-Dichlorophenol 0EPA 625 <5 pg/L 11/06/2014
2,4-Dimethylphenol 'EPA e25 <5 wg/L 11/0M014
2,4-Dinitropbenol EPA 625 <25 vg/L 11106/2014
2-Chlorophenol EPA 626
<5 pg/L 11105/2014
2-Methyl-4,6-dihitrophenol. EPA 826 <25 Pg/L 11105/2014
2-Nitrophenol EPA625 -;25 pg/L 11/05/2014
4-Chibro-3-methylphenol EPA 825 <5 pg/L 11/05/2014
4-Nitrophenol EPA M <25 WIL 1110512014
Peritachloroohenol EPA 626 <25 pg/L 11/05/2014
Phenol EPA 625 <5 pg/L 11105/2014
1,2 Diphenythydrazine VA 626 <5 vg/L 11/05/2014
1,24-Trichloroberizene EPA 625 <5 Pg/L 11/051,2014
1,2-Mhlorobenzene EPA 626 <5 pg/L 11/0512014
KeOdIt". 201943615
Page 3 of 6

g a j .0 : 6 g
ANALYTICAL $c CONSULTING
CHEMISTS
Town Of Morehead City
706 Arendell Street
Morehead City NC 28667
Attention: C. Sutton
Environmental Chemists,
6602 Windmill Way a W_ ilmington, NC 2W5
[phone] (Lab} + [phone] (Fax)
710 5owsertown Road • 141anteo, NC 27954
[phone]
NCDENR VWQ CERTIFICATE #94- DW CERTTMCATE #37729
pate :of Report- Nov 25, 2014
Customer PO #:
Customer ID: 09020011
Report #: 2014-13615
Project ID: Wastewater
Inc.
0-Dichforobenzene
EPA625
<5 pg/L
11105/2014
1,4-Dichlorobenzene
EPA625
<Sug/L
11/05/2014
1-Methyinaphthalene
EPA625
<5 pg/L
11/05/2014
44-Dinitrotoiuene
EPA625
<5 pg/L
11/05/2014
2,6-Dinitrotofuene
EPA625
<5tig/L
11/05/2014
2-Chloronaphthalen.e
EPA625
<5 pg/L
11/05/2014
2-Methyinaphthalene
EPA625
<5 pg&
11/05/2014
3,V-Dichiorobenzidine
EPA625
<1Oµg/L
11/05/2014
4-Bromophenyl phenyf.ether
EPA e2s
<5 pg/L
11/05/2014
4-Chlorophenyl phenyl ether
EPA525
<5 pg/L
11/05/2014
Acenaphthene
EPA625
<5 uq/L
11/05/2014
Acenaphthylene
EPA625
<5 pq/L
11/05/2014
Anthracene
EPA625
<5 µglL
11/051201:4
Senzidine
EPA 625
<10 µg/L
11 /0512014
Benzo [alpyrene
EPA 625
<5 pg/L
11/05/2014
Benzo(a)anthracene
EPA625
<5pg/L
1110512014
Benzo(b)ffuoranthene
EPA625
<5 Wg/L
11/05/2014
Benzo(g, h, i)peryiene
EPA 625
<5 µg/L
11/05/2014
13enzo(k)fluoranthene
EPA625
<5 pg/L
11105120-14
Bis ( chloromethyl ) ether
EPA625
<5 pg/L
11/05/2014
Bis(2-Chloroethoxy)methene
EPA s2s
<5 pg/L
11/05/2014
Bis(2-Chforoethyi)ether
EPA625
<5 pg/L
1110612014
Bis(2-Chloroisopropyl)ether
EPA.626
<5 µg/L
11/06/2014
Bis(2-ethy1hexyf)Phthalate
EPA625
<5 pg/L
11/05/2014
Butylbenzylphthalate
EPA625
<5 pg/L
11/05/2014
Chrysene
EPA
<5 µg/L
11/05/2014
Dibenzo(a.,h)anthracene
EPA625
<5 pg/L
11/05/2014
Diethylphthalate
EPA 625
<5 pg/L
11/05/2014
Dimethylphthelate
EPA-625
<5 pg/L
11/05/2014
Di-n-Butylphthaiate
EPA625
<,Fjug/L
11/05/2014
Report-#: 2014-13e15
Page 4 of 6

Environmental Chemists, Inc.
6602 WmdmiH Way • Wilmington, NC 28405
[phone] (Lab) • (910) 39.2-4424 (Fax)
710 Bowsertowri Road • lvtanteo, NTC 27954
[phone]
ANALYTICAL & CONSULTING
CHEMISTS
NCl7EM DWQ CERTMCATE #94. JAS CIUMPTCATE #39729
Town Of Morehead City
Date of Report: Nov 25, 2014
706 Arendell Street
Customer PO #:
Morehead City NC 28557
Customer ID: 09020011
Attention: C. Sutton
Report #: 2014-13615
Project ID: Wastewater
Di-n-Octylphthalate
EPA626
<6pg/L
11/05/2014
Fiuoranthene
EPA $26
<5 pg/L.
11/05/2014
Fluorene
EPA625
<5pg/L
11/05/2014
Hexachlorobenzene
EPA625
<5 pg/L
I1106/2W4
Hexachlorobutadiene
EPA 625
<5 pg/L
11/051201.4
Hexachlorocyclopentadlene
EPA 626
<25 ug/L
11105/2014
H.exachloroethane
EPPA626
<5 ug/L
11/05/201.4
indeno(1,2,3-cd)pyrene
EPA625
<5 pg/L
11/05/2014
lsophorone
EPA625
<5 pg/L
1110512014
Naphthalene
EPA ez5
<5 pg/L
1110MO14
Nitrobenzene
EPA 625
<5 pq/L
11/0512014
N-nitroso-dimethylamine(NDMA)
EPA625
<5pg/L
11/05/2014
N-Nitroso-di-n-propylamine
EPA625
<5 pg/L
11/05/2014
N-Nitroso-diphenylamine
EPA625
<5pg/L
11/0512014
Pherianthrene
EPA 625
<5 pg/L
11 /06/2014
Pyrene
EPA625
<5 pg/L
1110512O14
Lab ID Sample lD:
Collect Date/Thne Matrix Sampled' by
14-33381 Site: Field Biaok
1114/2014 8:15 AM Water C Sutton
Test J
Method
Results Date Analyzed
LL Mercury
EPA 1661 a
<0,500 ng/L
11110/2014
Report i:: 2014-13616
Page 5 we

Mercury (CVAFS)
Clierit:Environmental Chemist; Inc. Laboratory ID- PK05089-006
Description: Matrbc Aqueous
Date SaMpied:1110412014 0815
j Date Received: 111D612014
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 11110120142054 BNVV 11/07/20'i42200 60336
CAS Analytical -~---
Parameter — Number Method Result Q PQ!_ Units Run
Mercury(CVAFS) 7439-97.6 1631E NO 0.500 � ng/L 1
Pql. - Prac kal quandtoan milt 8 - Deleded in the meUtod blank £ = gtwntlisdan of eomp[wnd exeeadee the pflbraOOn range H = tkd of hatdkg Ume•
ND = Not detected.at a $hove Ole Pql J = Eslimaled fesuu < PQL and:- &RDL P a The RPD between two 6C cot MMO exceeds, 40-A N - Rocouary Is out of criteria
whe_ne sPpl1ceble; ali:"I sample analyals Are nWedon a cry welght oaals wdeas 9egW wM a - -
Shealy Efi*oomental 5ervioes, Ina 108 Vantage Point DdVa VVest Columbia, SC 29172 [phone] Fax [phone] we _Sheaiylab.com level PBgt= .18
Report 10 of ill

Mercury (CVAF$)
Client: Environmental Chemist, Inc. Laboratory ID: PK05099-00S
Description:14-33380 Matrbc Aqueous
' Date Sampled:11104120U 0818
Date Received: 1 i/OS/2014
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 11N0/20142049 BNW 11/07120142200 60336
CAS Analytical
Parameter _--- Numtldr M " Result Q PQt, Units Run
Mercury (CVAFS) 7439-97-6 1631E ND 0.600 riOA. 1
PQL- Preatloal quenHtatim drrit 8 . Worded In his ma&W blank E e Quaaetation of Compound W=edad tha a MbrAM neps H a pat of tlordhV &ne
ND - Nal deteded at atiova Ule PQL J = SIftbled rear8t -0.OL and > ►ADL P -Mm RPD between mo.GC oblMM e%Caed540'h N - Reeovery Is out of ahm
Wore aPpileable, all soft sample aneysls are reported Wa dry'weigM basis unless flagged w0h a
Shoaly EnWronrndnW Seivices, Inc
108'Vantage.PoirttOrW Wleat Columbia, SC 29172 (803) 791-970D Fax (IlM 791-9111 www.sheaylab aom
Page: 9 of 19
Lwd 1 ReportV i

nvironmentg Chemists, Inc.
6602 Windmill Way, Mtrainnton, NC 28405 , 910.392.0223 Lab v 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 * 252-473.5702 Lab/Fax
255-A Wilmington Highway. Jacksonville, NC 28540 0 910.347.5843 Lab/Fax
[e-mail]
Town Of Morehead City
Date of Report: Sep 11, 2015
706 Arendell Street
Customer PO #:
Morehead City NC 28557
Customer ID; 09020011
Attention: C. Sutton
Report #: 2015-10241
Project ID: Wastewater
Lab ID Sample ID:
Collect Date/Time Matrix Sampled by
15-24210 Site: Effluent Comp
816rZO15 7:50 AM Water C. Sutton
Test
Method
Results Date Analyzed
Antimony
EPA 200.7
<0.01 mg/L
08114/2015
Arsenic
EPA 200.7
<0.01 mg/L
08/14/2015
Beryllium
EPA 200.7
<0.01 mg/L
08/1412015
Cadmium
EPA 200.7
<0.01 mg/L
08/14/2015
Chromium
EPA 200.7
<0.01 mg/L
08/1712015
Copper
EPA 200.7
0.010 mg/L 9
08/14/2015
Lead
EPA 200.7
<0.01 mg/L
08114/2015
Nickel
EPA 200.7
0.015 mg/L
08/14/2015
Selenium
EPA 200.7
<0.01 mg/L
08/14/2015
Silver
EPA 200.7
<0.01 mg/L
08/14/2015
Thallium
EPA 200.7
<0.01 mg/L
08/14/2015
Zinc
EPA 200.7
0.023 mg/L
08/14/2015
Ammonia Nitrogen
EPA 350.1
< 0.2 mg/L
08/18/2015
Total Kjeldahl Nitrogen (TKN)
EPA 351.2
1.1 mg/L
08/17/2015
Total Hardness
SM2340C
399 mg/L
08/11/2015
Total Dissolved Solids (TDS)
SM2540C
1780 mg/L
08107/2015
Total Phosphorus
SM 4500 P f
1.26 mg/L
08/17/2015
Nitrate Nitrogen (Cale)
Nitrite Nitrogen
EPA353.2
0.05 mg/L
08/0712015
Nitrate+Nitrite-Nitrogen
EPA353.2
2,48 mg/L
08/12/2015
Nitrate Nitrogen
SU adOn Method
2.43 mg/L
08112/2015
Report V.: 2015-10241 - -
Page 1 of

Town Of Morehead City
706 Arendell Street
Morehead City NC
Attention: C. Sutton
28557
Lab ID Sample iD:
15-24211 Site: Effluent Grab
Test
LL Mercury
Oil & Grease (O&G)
Cyanide
lrora.&mr, Phenols
Alachior
Aldrin
Alpha - BHC
Aroclor -1016
Aroclor -1221
Arodor - 1232
Aroclor - 1242
Aroclor -1248
Aroclor - 1254
Aroclor -1260
Beta-BHC
Butachlor
Chlordane
DDD
DDE
DDT
Delta-BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan sulfate
Enddn
Report p:: 2016.10241
Anvi.ronmental Chemists, ine,
6602 VV!ndmill Way, Wilmington, NC 28405 ^ 910.392.0223 Lab 910 392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 G 2,92.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NTC 28540 - 910.347.5843 Lab/Fax
info owenvironmentRichemistscom
Date of Report: Sep 11, 2015
Customer PO #:
Customer ID: 09020011
Report #: 2015-10241
Project ID: Wastewater
Collect Date/Time Matrix - Sampled by — _ _--
8/6/2015 7:50 AM Water C. Sutton
Method
_-_ - _Results
Date Analyzed
EPA 1631e
<0.500 ng/L
08/13/2015
EPA 1664
<5 mg/L
08/11/2015
EPA M5A
< 0.005 mg/L
08/17/2015
EPA 46.1
0.005 mg/L
08/13/2015
EPA hoe
<0.000202 mg/L
08/12/2015
EPA Boe
<0.000202 mg/L
08/122015
EPA WB
<0.0000101 mg/L
08/12/2015
EPA 608
<0.005 mg/L
08/1212015
EPA$C9
<0.005 mg/L
08/12/2015
EPA 66e
<0.005 mg/L
08/12/2015
EPA 608
<0.005 mg/L
08/121201'6
EPA 808
<0.005 mg/L
08/12/2015
EPA Bob
<0.005 mg/L
08/12/2015
EPA 606
<0.005 mg/L
08/122015
EPA 608
<0.0101 mg/L
08/12/2015
EPA 608
<0.00808 mg/L
00/12/2015
EPA60B
<0.00101 mg/L
08/12/2015
EPA6oe
<0.0000101 mg/L
08/122015
EPA so6
<0.0000101 mg/L
08112/2015
EPA 608
<0.0000101 mg/L
08/122015
EPA 668
<0.0000101 mg/L
08/1212015
EPA Bob
<0.000202 mg/L
08/12/2015
EPA 608
<0.0000101 mg/L
08/12/2015
EPA 608
<0.0000101 mg/L
08/12/2016
EPA hoe
<0.0000101 mg/L
081122015
EPA 608
<0.0000101 mg/L
0811212015
-
Page 2of6 =_J

Environmental Chemists, Inc.
6602 Windmill Way, Nr,1mk%ton, NC•28405 a 910.392.0223 T-Ab - 910.392A424 Fax
710 Bowsertown.Road, Manteo, NC 27954 a 252.473.5702 Lab/Fax
255-A Wilmington Highway; Jacksonville, NC 28540 ® 910-347:55431.ab/Fax.
infoO nvironmentalchemisu.com
Town Of Morehead City
Date of Report: Sep 11, 2015
706 Arendell Stroet
Customer PO #:
Morehead City NC
28557
Customer ID: 09020011
Attention: C. Sutton
Report #: 2015-10241
Project ID: Wastewater
Enddn aldehyde
EPA 608
<0.0000101 mg/L
0811212015
Gamma-BHC
EPA 608
<0,0000101 mg/L
08/12/2015
Heptachlor
EPA 606
<0.0000404 mglL
08/12/2015
Heptachlor epoxide
EPA 608
<0,0000202 mg&
08/12/2015
Hexachlorocyclopentadiene,
EPA 608
<0.000101 rng/L
08/12/2015
Methoxychlor
EPA hoe
<0,000202 mg/L
08/12/2015
Metolachlor
EPA 60e
<0.000808 mg/L
08/12/2015
Metribuzin
EPA 608
<0.000-808 mg/L
08/12/2015
Propachlor
EPA 608
<0.00606 mg/L
08/12/2015
Simazine
EPA 608
<0.0000707 mg/L
08112/2015
Toxaphene
EPA 608
<0.00101 mg/L
08/12/2015
1,1,1-Trichloroethane
EPA624
<0.5 pg/L
08/08/201'5
1,1,2,2-Tetrachloroethene
EPA624
<0,5pg/L.
08108/2018
1,1,2-Trichloroethane
EPA624
<0.5pg/L
08/08/2015
1,1-Dichloroethane
M�
EPA 624
<0.5 pg/L
08/08/2015
1.,1-Dichloroethtne
EPA824
<0.5pg/L
08/08/2016
1,2-07,chlorobenzene
EPA 624
<0.5 pglL
08/08I2015
1,2-Dichloroethane
EPA624
<0.6 pg/L
08/08/2015
1,2-Dichioropropane
EPA824
<0.$pg/L
08/08/2015
1,3-Dichlorobehzene
EPA624
<0.5 pg/L
08/08/201-5
1,4-Dichiorobenzene
EPA624
<0.5 pg/L
08/08/2015
2-Chloroethylvinyl ether
EPA-624
<0.5 pg/L
0$/0812015
Acrolein
EPA 624
<5 pg/L
08/08/201'5
Acrylonitrile
EPA$24
<5 pg/L
08/08/2015
Benzene
EPA 624
<0.5 pg/L
08/08/2015
Bromodichiorumethane
EPA624
<0.5 pg/L
08/08/2015
Bromofdrm
EPA624
<0.5 pg/L
08108/2015
Brotrlomethane
EPA 624
<0.5 pg/L
08/0812Q15
Carbon tetrachloride
EPA 624
<0.5 pg/L
08/08/2016
Chlorobenzene -
EPA624
<Q,5 pg/L
08/0812015.
Re{i;;—. 2015-10241
- — --
_ __ _ —
Page 3 of*

!6penvxiaoehem _
ANALYTICAL & CONSULTING CHEMISTS
Environmental Chemists, Inc.
6602 WindmillWay, Wilmington, NC 28405 ? 910.392.0223 Lab + 910.39244_ 4 Fax
710 Bowsertown Road; Mant& NC 27954 9 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 b 910.347.5843 Lab/Fax
infoCiyenvirohmentalchemists.com
'Gown Of Morehead Cifty-
Date of Report: Sep 11, 2015
706 Arendeil Street
Customer PO #:
Morehead City NC
28557
Customer ID: 09620011
Attention: C. Sutton
Report #; 2015-10241
Project ID: Wastewater
Chlaroethane
EPA 624
<0.5 µg/L
08/08/2015
Chloroform
EPA 624
<0.5 µg/L
08/0812015
Chloromethene
EPA 624
<0.5 µg/L,
08/08/2015
cis-1,3-Dichloropropene
EPA 624
<0.5 µglL
08/08/2015
Dibromochloromethane
EAKS24
<0.5 µg1L
08108/2015
Ethylbenzene
EPA 624
<0.5 µg/i-
08/08/2016
WE
EPA 624
<0.5 µgn-
08/OSl2015
M+P Xylene
EPA 624
<1.0 µ9fl-
08/08/2015
Methylene chloride
EPA 624
<0.5 µg/L
08/08/201.5
MTBE
EPA 624
<0.5 µg/L
08/0812015
Naphthalene
EPA 624
<0.5 µg/L
08/0812016
ortho-Xylene
EPA 624
<0.5 N9/L
08/08/2015
Tetrachloroethene.
EPA 624
<0,5 ttg/L
08/08/2015
Toluene `
�
EPA 624
<0:5 µg/L
08/08/2015
Trans-1,2-Dichloroettwne
EPA 624
<0.5 µg1L
08/08/2015
trans-1,3-Dichloropropene
EPA 624
-40.5 µg/L
08/0812015.
Trichloroethene
EPA624
<0.5 Ng/L
08108/2015.
Trichlorofluoromethane
EPA 624
<0.5 µg/L
08/08/2016
Vinyl chloride
EPA 624
<0.5. µg/L
08/08/2015
2,4.6-Trichlorophenol
EPA626
<25.5 µg/L
08/07/2015
2,4-Dichlprophenoi
SPA MS
<25.5 µg/L
08/07/2015
2,4-Dirhethylphenol
EPA 625
<25.5 U9/L
08/07/2015
-2;4-DiniErophenol
EPA625
<128 µg/L
09/0712015
2-Chlorophenol
EPAe2s
<25.5 µg/L
08/07/2015
2-Methyl4,6-dinitrophenol
VA825
<'128 µ9/L
08/07/2015
2-Nitrophenol
EPA625
<128 µg/L
08/07/2015
4-Chioro-3-methylphenol
EPA 625
<25.5 µg/L
08/07/2016
4-Nitrophen.ol
EPA625
<128 pg/L
08/071201.5
Peritachlorophenal
EPA625
<128 µg/L
08/07/2015
Phenol _= Y =_-- J
�EpA62s
<25.5 µg/L
08/07/2016
PA*..V1 201510241
Page4W6

Environmental Chemists,
Inc.
/ @ i
6602 YVindmill Way, Wilmington, NC 25405 4 9.10,392.022-3 Lab - 910.392.4424
Fax
710 Bowser town. Road, Matteo, NC 27954 � 252.473.5702 Lab/Fax
255-A Wjhnington Highway, Jacksonville, NC 28540 - 910.347.5R43 Lab/Fax
ANALYTICAL & CONSULTING. CHEMISTS
[e-mail]
Town Of Morehead City
Date of Report: Sep 11, 2015
706 Arendell Street
Customer PO #•
Morehead City NC 28557
Customer ID: 09020011
Attention: C. Sutton
Report #: 2015.10241
Project ID: Wastewater
1,2 Dlphenylhydrazine
EPA 626
<25.5 pg/L
0$/07/2015
1,2,4-Tkhtombenzene
EPA 625
<25.5 pg/L
08/07/2045
1,2-Dich1orobenzene
EPA625
<25.51ig/L
08/0712016
1,3-Dichlorobenzene
EPA625
<25.5 pg/L
08/07/2015
1,4-Dichlorobenzene
EPAs25
<25:5 pg/L
08/07I2015
1-Methyinaphthaiene
EPA625
<26.5 pg/L
08/0712015
2,4-Dinitrotoluene
EPA 625
<25.5 pg/L
08/07/2015
2,6-Dinitrototuene
EPA 625
<25.5 ILL
08/071201.5
2-Chloronaphthalene
EPA 625
<25.5 pg/L
08/07/2015
27Methytriaphthalene
EPA 625
<25.5 pg/L
08/07/2015
3, V-Dichlorobenzidine
EPA 625
c5,1.0
08/07/2015
4-Bromophenyl phenyl ether
EPA625
<25.5 pg/L
0810712015
4-Chlorophenyl phenyl ether
EPA625
<25.5 pg/L
08/07/2015
Acenaphihene
EPA 625
<25.5 pg/L
08107/201.5
Aeenaphthylene
EPA 625
<25.6 pg/L
08/07/2015
Anthracene
EPA625
<25.5.pg/L
08/07/2015
Benzidine
EPA szs
<51.0 pg/L
08107/2015
Benzo [a]pyrene
EPA625
<25.5 pg/L
08707/2015
Benzo(a)anthrecene
EPA 625
<25.6 pg/L
08/07/2015
Benzo(b)fluoranthene
EPA 626
<25:5 pg/L
08/07/2015
Benzo(g,h;l)perylene
EPA625
<25.6 pg/L
08/07/2015
Benzo(k)fluoranthene
EPA6.25
<25.5 pg/L
08/07/2015
Sis ( chfbromethyl ) ether
EPA.625
<25.5 pg/L
08/07/2015
Bis(2-Ch1oroethoxy)methane
EPA625
<25.5 pg/L
08/07/2015
I31s(2-Chloroethyl)ether
EPA$2s
<25.5 pg/L
08/0712015
B1s(2-Ch1oroisopropy1)ether
EPA625
<25.6 pg/L
08/07/2015
B1s(2-ethy1hexy1)phthalate
EPA 625
<25.5 pg/L
08/0712015
StAylbenzylphthalate
EPA 626
<25.5 pg/L
08/07/2015
Chrysene
EPA 625
<25.5 pg/L
08/07/2015
„Dibenzo(a,h)anthracene
EPA 626
<25.5 }1gA-
08/07I2Q15
Repoit Aga 2015.10241-
PW50fe

Environmental Chemists, Inc.
1 E 6602 Wmdrn ll Way, Wilmington, NC 28405 0 910.392.0223 Lab a 910,3914424 Fax
1� 710 Bowsertown Road, Manteo, NC 27954 A 252.473.5702 Lab/Fax
255-.A, Wilmington Highway, Jacksonville, NC 28540 - 910.347.5843 Lab/Fax
ANALYTICAL & CONSULTING CHEMISTS [e-mail]
Town Of Morehead City
Date of Report: Sep 11, 2015
706 Arendell Street
Customer PO #:
Morehead City NC 28557
Customer ID: 09020011
Attention: C. Sutton
Report #: 2015-10241
Project ID: Wastewater
Diethylphthalate
EPA625
<26.5 pg/L
6810712015
Dimethylphthelate
EPA 82s
<25.5 pg/L
08/0712015
Di-n-Butylphth2l8W
EPA 626
<25.5 pg/L
08/07I2015
Di-n-Octylphthatate
EPA 625
<25.5 pg/L
08/07l2015
-Fluoranttsene
EPAQ6
<25.5 pg/L
08/07/2015
Fluorene
EPA s2s
<26.5 pg/L
0810712016
Hexachloroberuene
EPA 626
<25.5 pg/L
08/07/2015
Hexachlorobutacfiene
EPA
<25.5 pgfL
08/07/2015
Hexachlorocyclopentadiene
EPA625
<128 pg/L
08107/2015
Hexachloroethane
EPA 625
<25.5 pg/L
08/07/2015
Indeno(1,2,3-cd)pyrene
EPA 625
<25,5 pg/L
08/07/2015
Isophorone
EPA825
<25.6 pg/L
08/07/2015
Naphthalene
EPA 625
<26.5 pg/L
08/072015
Nitrobenzene
EPA 625
<25.6 pg/L
08/072015
N-nitroso-dimethylamine(NDMA)
EPA025
<25.5 pg/L
08/07/2015
N-Nitroso-di-n-propylamine
EPA 625
<25.5 pg/L
08/07/2015
N-Nitroso-diphenytamine
EPA 625
<25.5 pg/L
08/07/2018
Phenanthrene
EPA-628
<215 pglL
08/0712015
Pyrene
EPA 825
<25.5 ILL
08/07/2015
Lab ID Sample ID:
_
Collect Datefrime --Matrix Sampled by
15-24212 Site: Effluent Field Blank
8/6/2015 7:60 AM Water G. Sutton
Test
- Method T _ Results _ — Date Analyzed
LL Mercury EPA 1631e
Comment:
Reviewed by:.
<0.500 ng/L 08/132015
Report P: 2015A0241
Page 6 of 6

Mercury (CVAFS).
---------------
Clfent:Environmental Chemise, Inc. Laboratory ID:QH07090 003 �
Cesciiption: Eff #24211 Matrix: Aqueous
Date Sampled:00612015 0750
Date Received:0810712016
Run Prep Method Analytical Method Dilution Analysis Clete Analyst Prep.Date Batch
1 1631 E 1 08/13/20151326 COH 08/12/20151543 81972
CAS Analytical
Parameter _ _ Number Method Result Q PQL_ links Run =
Mercury (CVAFS) 7439-97-6 1631E N4� 0.500 ng/L 1
PfJL • Practical qusMiteffan isdt a •Detected Gn tie method blank E - Quanlitalfan of Compound exceeded the =ffbretwn range H & 0d. of h Wbg tlroe - - --- - - -
NO • Not dateded at or above the PQL J • Estimated rftult - PQL ands MOL P • The RPD between tiro GC columns expeede 40% N ■ Recovery ie aul of abdi
Whore appllable, all ad ample analyeis are reported on a dry welod basis unleae flagged with a W
Shealy Environmental Services, Inc — -- - - - - - ---Page: 7 011 e
108 Vantage Point Drive West ColUrnbla, SC 29172 [phone] Fax [phone] wwwsheab%b,00in

Mercury(CVAFS.)
CI)ent:Environmental Chemist, Inc.
Description: Blank #24212
Date Sampled:08/06/2016 07SO
Date Received:0810712016
Laboratory ID: 41Ho7o10-004
Metrbc; Aqueous
Run Prep Method Ana(ytloal Method Dilution Analysts Data Analyst Prep Date Batch �--
1 1631E 1 08/13120161341 COH 08/12/2015 1643 81972
_Parameter CAS Analytical
- __ ___ Number _ M u Result Q PQL Units Run
Mercury{CVAFS} ^ 743"7-6 1031E NO 0.600
ng1L 1
PQL= Pradtml gmn6fadon Amu — e a Wacwd in the method !dank E a Q-nfAW- et eomPounO wumv ed Hu eattbMon mope H = Out of dddlnp tlroe ND - Net deWW al or abo o the pQL J = EatkW- teau& < POL aW w MDL P a The RPo between twa GC oolu�va WCOWS 40% N
When 21`00 lq, NO soil aetnple anayeie we reported on a dry weft beak unleaa Bapped with a ` r ' k CIA ar eketia
Shealy Environmental Services, Inc. - - — - - — -
1o6 Vantage P0jN Dklve West C01Wbpie SC 29172 (803) 791-970o Fear [phone] www sheelylab.c= .Page: 8 of 11

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Fn iron.mentalChemists, Inc.
! 1 ! 6602 Windmill Wav, Wilmington, RTC 28405 1910.392.0223 Lab ' 910.392.4424 Fat
710 llowsertown Road, Manteo, NC 27954 t 252A73.57.02 L-,ib/Fax
255-A llmington Highway jacksnnvilltr, .NC 28..W) ' 910.3 7.5843 l ib/Fax
ANALYTICAL & CONSULTING CHEMISTS [e-mail]
Town Of Morehead City
706 Arendell Street
Morehead City NO 28657
Attention: C. Sutton
Lab ID Sample 10:
16-25799 Site: Effluent Camp
Test Method
Antimony
Arsenic
Beryllium
Cadmium
Chromium
Copper
Lead
Nickel
Selenium
Silver
Thallium
Titanium
Zinc
Ammonia Nitrogen
Total Kieldahl Nitrogen (TKN)
Total Hardness
Total Dissolved Solids (TDS)
Total Phosphorus
Nitrate Nitrogen (Calc)
Nitrite Nitrogen
Nitrate+ Nitrite -Nitrogen
Nitrate Nitrogen
EPA 200.7
EPA 200.7
EPA 200.7
EPA 200.7
EPA 200.7
EPA 200.7
EPA 200.7
EPA 200.7
EPA 200:7
EPA -200.7
EPA 200.7
EPA 200Y
EPA 200.7
EPA 350. f
EPA.351.2
SM 2340 C
SM 254a C
SM 4500 P F
Date of Deport: Aug 24, 2016
Customer PO #:
Customer ID: 09020011
Report #: 2016-10648
Project ID: Wastewater
Collect Date/Time Matrix Sampled by
8/2/2016 7:30 AM Water C. Sutton
EPA 3531
EPA 353.2
Subtraction Method
Results
<0.01 mg/L
<0.01 mg/L
<0.01 mg/L
<0.01 mg1L
<0.01 mg/L
0.017 mg/L
<0.01 mg/L
<0.01 mg/L
�0.01 mg/L
<0.01 mg/L
<0.01 mg/L
<0.01 mg/L
0.016 trig/L
< 0.2mg/L
0.9171g/L
347 mg/L
1400 mg/L
1.61 trig/L
< 0.02 mg/L
8.10 mg/L
8:11 mq/L
Date Analyzed
08108/2016
08/08/2016
08/08/201.6
08/08/2016
08/08/2016
08/08/2016
08/08/2016
08/08/2016
08108/2016
08/08/2016
08/22/2016
08108/2016
08/08/2016
08/04/2016
08/10/2016
08/04/2016
08/03/201.6
08/10/2016
08/02/2016
08108/2016
08/11/2016
Report#::-,201fi-10fi48
Page 1 Of 7

EnArvnmental Chemists, Inc.
! t 6602 4indmill Way, Wilmngton, NC 28405 = 910.392.02�3 L.* - 910.392.4424. Fax
j 710 Bow. Rood, Manteo, NC 27954 • 752473.5702 Ubk/Fax
24-A Wilmington Highway, Jacksonville, NC 28540 , 910.347..%43 Lab/Fax
ANALYTICAL & CONSULTING CHEMISTS
Town Of Morehead City
706 Arendeli Street
Morehead City NC 28557
Attention: C. Sutton
info(ti?cnvironmentalchemist.o com
Date of Report: Aug 24, 2016
Customer PO #:
Customer ID: 09020011
Report #: 2016-10648
Project ID: Wastewater
Lab ID Sample ID:
16-26805 Site: Effluent Grab
Test
Collect Date/Time
j 8/2/2016 7,50 AM
Methbd
Matrix Sampled by
Water C. Sutton
Results Date Analyzed
Oil & Grease (O&G)
I
ERA 1064 '
<5 mg/L
08/11 /2016
Cyanide
EPA 335,4
< 0.005 mg/L
08109/2016
Inorganic Phenols
6A420.1
I
0.004 n1gIL
08/04/2016
Alachlor
E'A608
<0,0002mg/L
D8/03/2016
Aldrin
EPA 608
<0.0002 mg/L
08/03/2016
Alpha -BHC
[PAeos
<0,00001 mg/L
08/03/2016
Aroclor -1016
EPA eoe �
<0.0005 mg/L
08/03/2016
Aroclor -1221
FFA 60e '
<0.0005 mg/L
08/03/2016
Aroclor -1232
EPA sos
<0, 0005 mg/L
08/03/2016
Aroclor -1242
SPA boa
<0.0005 mg/L
08103/2016
Aroclor -1248
EPA 808 '
<0.0005 mg/L
08/03/2016
Aroclor -1254
EPA sob
<0.0006 mg/L
08/03/2016
Aroclor -1260
EPA 8oe
<0.0006 mg/L
08/03/2016
AtrazineA608
<0.0001mg/L
08103/2016
Beta-BHC
EPA 606
<0.00001 mg/L
08/03/2016
Butachlor
EPA Boa
<0.008 mg/L
08/03/2016
Chlordane
EPA 608
<0.001 mg/L
08/03/2016
DDD
EPA608
<0.00001 mg/L
08103/2016
DDE
EPA 608
<0.00001 mg/L
08/03/2016
DDT
EPA 608
<0.00001 mg/L
08/03/2016
Delta-BHC
EPA 608
<0.00001 mg/L
08/03/2016
Dieidrin
EPA US
<0.0002 mg/L
08/03/2016
Endosulfan 1
EPA 608
<0.00001 mg/L
08/03/2016
Endosulfan II
EPA 808
<0.00001 mg/L
08/03/2016
Endosulfan sulfate
fPA608 ;
<0.00001 mg/L
08/03/2016
Endrin
;
EPA 6os =
<0.0001 mg/L
08/03/2016
Report P.: 2016-10648
Page 3 of 7

1 1 I l 6602
sre
ANALYTICAL $ CONSULTING CHEMISTS
Town Of Morehead City
706 Arendeli Street
Morehead City NC 28557
Attention: C. Sutton
Endrin aldehyde
Gamrna-BHC
Heptachlor
Heptachlor epoxide
Hexachlorocyclopentadiene
Methoxychlor
Metolachlor
Metribuzin
Propachlor
Simazine
Toxaphene
1,111-Trich loroethane
1,1,2,2-Tetrachloroethane
1,1,2-Trichloroethane
1, 1 -Dichloroethane
1, 1 -Dichloroethene
1,2-Dichlorobenzene
1,2-Dichioroethahe
1,2-Dichloropropane
1.3-Dichlombenzene
1,4-Dichiorobenzene
Acrolein
Acrylonitrile
Benzene
Bromodichloromethane
Bromoforrn
Bromomethane
Carbon Tetrachloride
Chlorobenzene
Chloroethane
Reporf #-..: 2016-10648
608
608
EPA 608
ERA 608
Ef'A 608
i
EPA BOB
EPA 608
i
EOA 6a6
1
WA 608 j
EFA 608 I
i
EPA.608
EPA 624
EPA 624
EPA 824
EF#A 624 1
EPA 624
EPA 624
EPA 624
I
EPA 624
t
EPA 624
EPA 624
EPA 824
EPA.624
EPA 624
EPA 624
EPA 624
EPA 624
EPA 624 I
i !
EPA 624 {
EPA 624
avironniental Chemists, Inc.
admill Way, Wilmington, NC 2840.5 A 910.392.0223 Lib - 910.392:4124 Fax
710 Bowsertown Road, Manteo, NC 27.954 - 252.473.5702 Lab/Fax
K'flmingtonHighway,)acksonville;.NC2854t? 910.3'47.5843Lake/Fax
infoq.,environmen tatchemis ts.coin
Date of Report: Aug 24, 2016
Customer PO #:
Customer ID: 09020011
Report #: 2016-10648
Project ID: Wastewater
<0.00001 mg/L
08/03/2016
<0:00001 mg/L
08/03/2016
<0.00004 mg/L
08103/2016
<0.00002 mg/L
08/03/2016
<0.0001 rng/L
08103/2016
<0.002 mg/L
08/03/2016
<0.00.08 mg/L
08103/20/6
<0.0008 mgn-
08/03/2016
<0.006 mg/L
08/03/2016
<0.00007mg/L
081031201E
<0.001 mg/L
08/03/2016
<0.5 pg/L
08/08/2616
<0.5 pg/L
08/08/2016
<0.5 pg/L
08/08/2016
<0.5 pg/L
0810812016
<0.5 Ng/L
08/08/2016
<0.5 p9/L
08/0812016
<0..5 pg/L
08/08/2016
<0.6 ug/L
08/08/2016
<0.5 pg/L
08/06/2016
<0•5pg/L
08/08/2016
<5 u9/L
08108/20.16
<5 Ng/L
08/08/2016
<0-6 pg/L
08/08/2016
<0.5 pg/L
08/08/2016
<0•5 pg/L
08/08/2016
<0,5 pg/L
08/08/2016
<0.5 pg/L
08/0812016
<0.6 pg/L
08/08/2016
<045 pglL
08/08/2015
Page 4 of 7

' f i
ANALYTICAL & CONSULTING CHEMISTS
Town Of Morehead City
706 Arendeil Street
Morehead City NC 28557
Attention, C. Sutton
Chloroform
Chlorornethane
cis-1, 3-Dichloropropene
Dibromochlorornethane
Ethyibenzene
M+P Xylene
Methylene chloride
ortho-Xylene
Tetmchloroethene
Toluene
Trans-1 ,2-Dichlorcethene
trans-1 ,3-Dichloropropene
Tdchlomethene
Trichlorofluoromethane
Vinyl chloride
2,4, 6-Ttichloraphenol
2,4-Dichlorophenol
2,4-Dimethylphenol
2,4-Dinitrophenol
2-Chlorophenol
2-M ethy i-4,6-dinitrophe no I
2-Nitrophenol
4-Chloro-3-methylphenoi
4-Witrophenol
Pentachlorophenol
Phenol
1,2 Diphenylhydrazine
1,2,MTrichlorobenzene
1,2-D'tchlomben2ene
1,3-Dichlombenzene
Report#'-' 2016.10648
f �
E�wironm+entai Chemists, Inc.
6602 IAtind.mill Way, Wihnington, NC 2W5 6 910.392.0223 Lab a 910.392.4724 Fax
710 BoFesertown Road, Manteo, NC 27954 * 2MA73.5702 i,<7b/Fax
255 A Wilm.in ;ton Mgliway Jacksonville, I!C 28-W , 910.347.5843 Lab/Fax
info(&,environmentalchemists.coni
EPA 624
EPA 824
EPA.624
E016, 24
EPA 624
EPA 624
EPX 624
EPA 624
EPA 824
i
WA-.624
WA 624
EPA 624
E}aA 624
EPA 624
EPA 624
EPA 625
EPA 625
EPA 625
EPA 625
6A 625
EPA US
EPA 625
EPA 625
EPA 625
EPA 626
EPA 825
FOA625
FFA e25.
ERA 625
EPA 625
Date of Report: Aug 24, 2016
Customer PO #:
Customer 1D: 09020011
Report #: 2016-10648
Project ID: Wastewater
<0.5 pg/L
08/08/2016
<0.5 pg/L
08/08/20.16
<0.5 pg/L
08108/2016
<0.5 pg/L
08/08/2016
<0. 5 pg/L
08/0812016
<1.0 pg/L
08/08/2016
<0.5 pg/L
0810812016
<0.5 pg/L
08/08/2016
<0.5 pg/L
08/08/2016
<0.5 pg/L
08/08/2016
<0.5 ug/L
08/08/2016
<0.5 pq/L
08/08/2016
<0.5 pg/L
08/08/2-016
<0.5 Pg/L
08/08/2016
<0.5 pglL
08/08/2016
<5.15 pg/L
08/03,/2016
<5.15 pg/L
08/03/2016
<5:15 pg/L
08/03/201.6
<25.8 pg/L
08/03/2016
<5.15 pg/L
08/03/2016
<25.8 pg/L
08/03/201.6
<25.8 pg/L
08/03/2016
<5.15 pg/L
08/031201.6
<25.8 pg/L
08/03/2016
<25.8 pq/L
08/03/2016
<5.15 pg/L
0810312016
<5.15 ug/L
08/03/2016
<5.151ag/L
08103/2016
<5.15 pg/L
08103/201.6
<5.15 pg/L
08/03/2016
Page 5 of 7

Miviro►nmental Chemists, Inc,
1 1 6602 Windmill Way, Witnungton, NC 28405 910.392,0223 Lab * 910.392.4424 Pax
710 8o►vsmtoivn l<oa;d, .Manteo, NC 27954 s 252.473.5702 LEI * -tx
255=A Wilmington Hiiglnv'ay, Jacksonville; NC 28540 6 910.347-5Wl Lab/Fax
ANALYTICAL & CONSULTING CHEMISTS infaisenvirnnmentzilehemists:com
Town Of Morehead Ciy
Date of Report: Aug 24, 201.6
706 Arendell Street
I
Customer PO #:
Morehead City NC
28557
Customer ID: 09020011
Attention: C. Sutton
i
Report #: 201.6-10648
Project ID, Wastewater
1,4-Diclilorobenzene.
EPA 625
<6 15 pg/L
08103/2016
1-Methylnaphthalene
EPABzS
<5.15ug/L
08/43I2016
2,4-Dinitrotoluene
EPA 62s i
<5.15 Ng/L
48/03/2016
Z6-Dinitrotoluene
EPas2s
<5.15Wg/L
08/03/2016
2-Chloronaphthalene
EPA625
<5.15pg/L
08l0312016
2-Methylna0hthalene
EPA ers
i
<5.15 pglL
08/43/2016
3,3'-Dichlorobenzidine
EPA62s
t
<10:3ug/L
08/43/2016
4-Brnmophenyl phenyl ether
EPA 60
r
<5115 ug/L
08/03/2016
4-Chlorophenyl phenyl ether
EPA625
<5:150glL
08103/2016
Acenaphthene
EP4625
<5.15 ug/L
08J0312016
Acenaphthylene
EPA.625
<5.15ttglL
08/03/2016
Anthracene
EPA P26
<5.15pq/L
08/03/2016
Benzidine
ePA625
<10.3pgiL
08/03/2016
Benzo (alpyrene
EPA625
<5.15ug/L
08/03/2416
Benzo(a)anthracene
EPA625
<5.15pg/L
08/03/2016
Benzo(b)fluoranthene
EPA625
<5.15pg/L
08/0.3/2016
Benzo(g,h,i)perytene
EPA625
<5.15pg1L
08/03/2016
Benzo(k)fluoranthene.
EPa62s
<5:15pg/L
08/03/2016
Bit ( chlororhethyl) ether
EPA 625
<5:15 u9lL
0.8/03l2016
Bis(2-Chloroethhoxy)methane
EPA625
<5.15 pg/L
08/08/2016
Bis(2-Chloroethyl)ether
EPA625
<5.15pg/L
08103/2016
Bis(2-Chloroisopropyl)ether
EPA625
<5.15Pg/L
08/03/2016
Bis(2-ethylhexyi).phthalate
EPA 6
<5.15pg/L
08/03/2016
8utylbenzyiphthalate
EPA625
<5.15pg/L
08/03/2016
Chrysene
EPA 625.
<5.15 yg/L
08/03/2016
Dibenzo(a,h)anthracene
EPA625
<5.15tIg1L
08/0312016
Dlethylphthalate
EPA 625
<5.15 pq/L
08/03/2016
Dirnethylphthalate
EPA525 :
5;73ug/L
08l0312016
Di-n-Bwtyiphthtate
EPA szs
<5.15 pg/L
08103l2016
Di-n-Octylphthaiate
EPA-625
08103/2016
Report *: 2016-1 0648
Page 6 of 7

Environment al Chemists Inc.
6602 Windmill Way, WilmingtO, NC 28-05 d 910.392.0273 Lab 0 910.392.44.24 Fax
A 710 BgtvserEown [toad, Manteo; NC 279 r! * ?52.4735702 T ab%Fax
2515-A Wilmington Highway, Jacksonville, NC 28540 - 910347.5843 Lab/Fax
ANAL`fTICAL & CONSULTING CHEMISTS
infixa6x7ronmentalchemists.com
Town Of Morehead City D t.
706 Arendell Street
Morehead City NC 28657
Attention. C. Sutton
i
Fluoranthene
Fluorene
Hexachlorobenzene
Hexachlorobutadiene
Hexach lorocyciopentadiene
Hexachloroethane
Indeno(1,2, 3-cd)pyrene
Isophorone
Naphthalene
Nitrobenzene
N-nitroso=dimethylamine(N©MA)
N-Nitro"-n-propylamine
N-N i troso-d i pheny lam i ne.
Phenanthrene
Fyrenem
Comment:
r
Reviewed b :
ERA 625
EPA 625
EPA 625:
ERA 62s
ERA 625
EPA 62s
EPA 625
EPA 625
ERA 826 j
EPA $25
EF!A.625.
EF±A 625
EpA 625
EPA 625
a e Report, Aug 24, 2016
Customer PO #:
Customer ID: 09020611
Report#: 2016-10648
Project 10: Wastewater
<5.151-19/L
08/0312016
<5:16 W911-
08/03/2016
<5.15 ug/L
08/03/2016
<& 15 pg/L
0810312016
<25•811g/L
08/03/2016
<5.15 ug/L
0.8/03/2016
<5.15 Ng/L
08/0312016
<5-15P91L
08/03/2016
<5.15I.fg/L
08/03/2016
<5.15 u9/L
08/03/2016
<5.15 Mfg/L
08/03/2016
<5.16 Wg/L
08/03/2016
<5.1.5 Ng/L
08/03/2016
<5:15 pg/L
08/03/2016
<515 ug/L
08/03/2016
I
RePort :: 2010-10648
Page 7 of 7

1 Mercury (CVAFS)
Client- Environmental Chemist Inc,
Laboratory ID.* RHO3045-001
Description-, 16-25801
Matrix. Aqueous
Date Sarnpled,0810212016MO
Date Received: 081 0312016
Run Prop Method Anstyllocalmeliid Milton Analysis Date Analyst Prep Date Batch
161E i 0811112016 2123 BEB 08/0912016 1633 19342
Parameter OAS An*Ucal
Nam
Resuft Q POL Units Run
r Method
Mercury (CVAFS) 7439-97t- 1631E NO 0.500 n9A-
PQL - Practica; quanfit&w WI a in VIA Metrtw Me* HaOut athold-InquMs
NO - IJat dkeq et or 06w the PQL J - Estimated mak - FOL and Z MOL P - Tto RPO beWan wo OC cn%mm exceeds 40% N = Recovers Is out of cftda
Where appkatAe. all 50 sample arm"o am repoded cn a " Weight basis unless flaned with a W
Shealy Envkortrrte�ntsl Services, Inc. Page: 5 of 14
106 Vantage Point Drive West Columbia. SC 29172 (M)791-9700 Pax (a(13)791-9111 www.shealyW.com

Mercury
. | Clien envmmnenta/ouomtst Inc. � | --- --- --' --- ---------'----------------'
��m�� ox��w�2
oow�»o�`w�nnoo i
Date oum"*^mpmoo,w"^".. i / mumx^wuwowa
_�-------�...~�
Date Re calved: 0810312016
Run Prop Method Analydeal Me
CAS Ana"cal
`
� |
� |
� .
�
. .
� .
i
| |
�
P890:mofw
| !
�

sa,
ANALYTICAL & CONSULTING CHEMISTS
Town Of Morehead City
706 Arendell Street
Morehead City NC 28557
Attention: C. Sutton I
Lab ID
16-25801
Test
LL Mercury
Lab id
16-25803
Test
LL Mercury
Sample ID:
Site: Field Blank
Sample ID:
Site: Effluent Grab
Environmental Chemists, Inc,
6602 *dmill Way, Wilmingtt??t, NC 2S405 Q 910,39- 0223 Lab 1 910:392.4421 Fax
710 Bowsertown Road, Manteo, NC 27954 - 252.4735702 Lab/Fax
2551 A Wilmington Highway, jacksonville, NC 25540 , 910.347.58, 43 Lab/Pax
ijifo@envitojiinen'talchem.ists.com
1631e
Date of Report: Aug 24, 2016
Customer PO #:
Customer ID: 09020011
Report #: 2016-10648
Project ID: Wastewater
Collect Date/Time Matrix Sampled by
8/2/2016 1:10 PM Water C. Sutton
d Results Date Analyzed
<0.500ng/L 08111M16
Collect Date/Time Matrix Sampled by
BIM016 1:10 PM Water C, Sutton
Results Date Analyzed
<0.500ng/L 08/11/2016
Report #s 2U18 10648
Page 2 of 7

PO Box 7565
Asheville NC 29802
t Phone: [phone]
Fax: [phone]
Environmental Testing Solutions, Inc.
Effluent Toxicity Report Form - Chronic Pass/Fan and Acute LCso Date: November 26, 2018
Facility: Morehead Cay WWTP NPDES #: NC-0026611 Pipe #: 001 County: Carteret _
Laboratory Performing Test: Environmental Testirt 1 ' ns 1 Comment
s: .
Signature of Operator in Responsible Charge: Project: 13772
Signature of Laboratory Supervisor: r _ —
_� Sam le: 181107.21
Mail Original To: North Carolina Department of Environment and Natural Resources Chronic Test Results
DWQ/ Environmental Sciences Branch Calculated t:
1621 Mail Service Center Tabular t:
Raleigh, NC 27699-1621 oA R
North Carolina Ceriodaphnja Chronic Yass/Fail Reproduction Toxicity Test
Organisms 1 2 3 4 5 6 7 8 9 10 11 1
Produced
Effluent Percentage®
Treatment 2 Organisms 1 2 3 4 5 6 7 8 9 10 11 12
er of Young Produced
Survival: (L)ive, (D)e
eductron:
Percent
Average
Morta.
Rcprad-d-
Control
Control
Treatment 2
Treatment 2
C-W Cv
Pass Fail
rc �
w�d—u r.d b—d
PH (S.U.) 1st Sam le 1st-SampleIst-Sample 2nd Sam le Test Start Date: 11-07-18
Control 4
Treatment 2 I�1 Collection (Start) Date:
u Sample i 11-05-18 Sample 2
D.O. (mg/1) lst Sam le Ist Sam Ie 2nd Sam le Sample Type/Duration
Control c
rab
Treatment 2
Sample 1 X U.:s-n 8 _ N
G
Sample2
0 3 nrs y
I, Alkalinity (mg eacwf-)
LCm/Acute Toxicity Test
(Mortality expressed as %, combining replicates.)
Concentration (%)
Martality (%)
10Mtroj 45 1 0.5 1 90 95 100
0 1 0 1 0 1 0 1 0 0
LCSO _ >100% Method of Determination
950A Confidence Limits Trimmed Spearman Karber
NC to NC Probit
X Other: Visual Inspection
Initial / Salted -up Salinity (pp)
Conductivity (pmhos/cm)
i
Total Residual Chlorine (mg)L)
Sample Temp. at Ref 0 (°C)
I
Organism Tested: Menift beryffine Duration: 48-hours
DWQ form AT I (347) rev. I1/95
120
220
i I j 1
7.82 7.86 Control 7.7 7.5
7.96 9.16 1Hio Coma 17.9 1 7A
PH (S.U.) DO (mg(L)

a
i
Environmental Testing Solutions, Inc.
November 26, 2018
Mr. Chad Sutton
Morehead City WWTP'
706 Arendeli Street
Morehead City, NC 28557
RE: ETS PROJECT NUMBER:13772
Dear Mr. Sutton:
PO Box 7565
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
Enclosed are toxicity test results for a sample from the Morehead City WWTP received by
Environmental Testing Solutions, Inc. on November 07, 2019.
Parameter Test Procedure T- - - - EPA ---
Code Method Final Results
Number (24-hour LCso)
Methods for Measuring the Acute Toxicity of
TAE6F Effluents and Receiving Waters to Freshwater and EPA-821-R > 100%
Marine Organisms, October 2002. 02-012
�Menidia be+yllina Acute I.C50 Toxk Ey Test)
Note: 24-hour LC50 = Median Lethal Concentration. An estimate of the concentration of effluent,
which is lethal to 50% of the test organisms in 24 hours.
If this test was performed as an NPDES requirement or by Administrative Letter, please enter a
>100 on the Effluent Discharge Monitoring Form (MR-1) for the collection date
November 06, 2018 using the parameter code TAE6F.
Additionally, please sign and submit the original DWQ Aquatic Toxicity Form (AT-1) by
December 30, 2018.
If you have any questions concerning these results, please feel free to contact me.
Sincerely,
�11
Sumner
Laboratory Director
This mport should not be md=d, eXne E in its entircry, without the written consmt of&-ft Ema W Testin« Solutions, InC
North Carolina Certificate Numbers. Biological Analyses: 37, Drinking Water. 37786, Wastewater. 600
South Carolina Certificate Number: Clean Water Act: 99053-001

f
u;
.. Environmental Testing Solutions, Inc.
January 02.2019
Mr. Chad Simon
Morehead City WWTP
706 Arendetl Street
Morehead City, NC 28557
RE: ETS PROJECT NUMBER: 13829
Dear Mr. Suuon:
PO Box 7565
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
Enclosed are toxicity test results for a sample from the Morehead City WW IP reeeivcd by
Environmental Testing Solutions, Inc. on December 05, 201 S.
Parameter Test Procedure EPA
Code Method Final Results
Dumber (?4-hour LC30)
Methods for Measuring the Acute Toxicity of
TAE6F Effluents and Receiving Waters to rresh wir and EPA-821-R- > 100%
Marine Organisms, October 2002. 02-012
(Aleridia bervilina Acuic LC30 Toxicity Test)
Note: 24-hour LCsa= Median Lethal Concentration. An estimate ofthc concentration ofefflueni
which is lethal to 50% of the test organisms in 24 hours.
If this test was performed as an NPDES requirement or by Administrative letter, please enter a
>100 on the Effluent Discharge Monitoring Form (MR-1) for the collection date
December 04, 2018 using the parameter code TAE6F.
Additionally, please sign and submit the original DWQ Aquatic Toxicity Form (AT-1) by
January 31, 2019.
If you have any questions concerning these results, please feel free to contact me.
sincerely,
Jim Jim . wnne4 t
Laboratory Director
Th"n WpoetsirMId Wt bC ;VP1Q -W. [Xu;t in its eatitr X- M&W lk'"hwn blsetn arFmiwrrnridel 7'mft %rdutin-L Inc
Moab Carolina Cw1jr7care Numbers: Biological Analyses: 37, Drinking Water_ 37796, Wurewater: 600
SowhCm-olinaCeriifwateNumber. Clean Water Act: 99053.001

PO Box 7565
% Asheville, NC 28802
Phone: [phone]
Fax: [phone]
EnviromnentalTesting Solutions, Inc.
January 25, 2019
Mr. Chad Sutton
Morehead City WWTP
706 Arendell Street
Morehead City, NC 28557
RE: ETS PROJECT NUMBER- 13914
Dear Mr. Sutton:
Enclosed are toxicity test results for a sample from the Morehead City WWTP received by
Environmental Testing Solutions, Inc. on January 09, 2019.
Parameter Test Procedure
EPA
Code
Method Final Results
Number (48-hour LCso)
Methods for Measuring the Acute Toxicity of
TAE6F Effluents and Receiving Waters to Freshwater and
EPA-821-R- > 100%
Marine Organisms, October 2002.
02-012
(Menidia bervllina Acute LCSo Toxicity Test)
Note: 48-hour LCso = Median Lethal Concentration. An estimate of the concentration of effluent,
which is lethal to 50% of the test organisms in 48 hours.
If this test was performed as an NPDES requirement or by Administrative Letter, please enter a
>100 on the Effluent Discharge Monitoring Form (MR-1) for the collection date
January 08, 2019 using the parameter code TAE6F.
Additionally, please sign and submit the original DWQ Aquatic Toxicity Form (AT-1) by
February 28, 2019.
If you have any questions concerning these results, please feel free to contact me.
Sincerely,
�rlmner
Laboratory Director
This rej rt should not be reproduced except in its entire; v. without the written consent of Environmental Testing Solutions, Inc.
North Carolina Certificate Numbers: Biological Analyses: 37, Drinking Water: 37786, Wastewater: 600
South Carolina Certificate Number: Clean Water Act: 99053-001

Environmental Testing Solutions, Inc.
Effluent Toxicity Report Form - Chronic PaSS/Fail and Acute LCsO
PO Box 7565
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
Date: January 25, 2019
Facility: Morehead City WWTP NPDES #: NC-0026611
Laboratory Performing Test: Environmental Testin oluti s, In
Signature of Operator in Responsible Charge:
Signature of Laboratory Supervisor:
Pipe #: 001 County: Carteret
Comments: .
Project: 13914
Sample: 190109.31
Mail Original To: North Carolina Department of Environment and Natural Resources
DWQ/ Environmental Sciences Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
North Carolina Ceriodaphnia Chronic Pass/Fail. Reproduction Toxicity Test
Control Organisms 1 2 3 4 5 6 7 8 9 10 11 12
Chronic Test Results
Calculated t:
Tabular t:
% Reduction:
Percent
1ltortalit,
Average
Reproduction
Control
Control
Number of Young Produced
Adult Survival; (L)ive_ t D lead
Treatment 2
Treatment 2
Effluent Percentage=
Treatment 2 Organisms 1 2 3 4 5 6 7 8 9
10 It 12
Connnt CV
Pass Fail
Number of YoungProduced
" `, ",d1"W pa3�Mi� bd 4nwl
Adult Survival: (L)ive; (D)ead
PH (S.U.) 1st Sam le 1st Sam le 2nd Sam le
Control
Treatment 2
D.O. (mg/1)
Control
1st Sam ale
1st Sam le
2nd Sam ale
Treatment 2
LCso/Acute Toxicity Test
(Mortality expressed as %, combining replicates.)
Concentration (%) Contra45 6
Mortality (%)
7.5
90
StartDate: 01-09-19
Collection (Start) Date:
Sample 1 _ 01-07-19 Sample 2
Sample Type/Duration
Grab Comp. Duration
Sample I X 24-h ry
Sample 2 m a a
0 3
Alkalinity (mg CaCO3/1_)
Initial / Salted -up Salinity (ppt)
Conductivity (µmhos/cm)
Total Residual Chlorine (mg/L)
Sample Temp. at Receipt CC)
LC5t, = >1000/6 Method of Determination
95% Confidence Limits Trimmed Spearman Karber
NC to NC Probit
X Other: Visual Inspection
Organism Tested: Menidia beryllina Duration: 48-hours
DWQ form AT-1 (31879 rev. 11/95
120
220
'4
24.9
2.3n4.7
t396t0l..
R c V c
8.08 7.88 Control 1 7.91 7.7
8.11 8.21 highCo,,.j 8.2 1 7.6
PH (S.U.) DO (mg/L)

PO Box 7565
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
Environmental Testing Solutions, Inc.
February 22, 2019
Mr. Chad Sutton
Morehead City WWTP
706 Arendell Street
Morehead City, NC 28557
RE: ETS PROJECT NUMBER: 13990
Dear Mr. Sutton:
Enclosed are toxicity test results for a sample from the Morehead City WWTP received by
Environmental Testing Solutions, Inc. on February 06, 2019
Parameter Test Procedure
EPA
Code
Method Final Results
Number (48-hour LC�0)
Methods for Measuring the Acute Toxicity of
TAE6F Effluents and Receiving Waters to Freshwater and
EPA-821-11- > 100%
Marine,Organisms, October2002.
02-012
(Menidia beryllina Acute LCso Toxicity Test)
Note: 48-hour LCso = Median Lethal Concentration. An estimate of the concentration of effluent,
which is lethal to 50% of the test organisms in 48 hours.
If this test was performed as an NPDES requirement or by Administrative Letter, please enter a
>100 on the Effluent Discharge Monitoring Form (MR-1) for the collection date
February 05, 2019 using the parameter code TAE6F.
Additionally, please sign and submit the original DWQ Aquatic Toxicity Form (AT-1) by
March 31, 2019.
If you have any questions concerning these results, please feel free to contact me.
Sincerely,
Jim umner
Laboratory Director
This report should not be reproduced, exopt in its entirety, without the written consent of Environmental Testing Solutions, Inc.
North Carolina Certificate Numbers: Biological Analyses: 37, Drinking Water: 37786, Wastewater: 600
South Carolina Certificate Number: Clean Water Act: 99053-001

;tea Environmental Testing Soltitions, Inc.
Effluent Toxicity Report Form - Chronic Pass/Fail and Acute LC5o
. PO Box 7565
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
Date: February 22, 2019
Facility: Morehead City W WTP NPDES #: NC- 0026611 Pipe #: 001 County: Carteret
Laboratory Performing Test: Environmental Testin 1 do s, In Comments: .
Signature of Operator in Responsible Charge: Project: 13990
Signature of Laboratory Supervisor: Sample: 190206.31
Mail Original To: North Carolina Department of Environment and Natural Resources
Chronic Test Results
DWQ/ Environmental Sciences Branch
Calculated t.
1621 Mail Service Center
Tabular t:
Raleigh, NC 27699-1621
% Reduction:
North Carolina Ceriodaphnia Chronic Pass/Fail Reproduction Toxicity Test
Percent
Average
Mortalky
Reproduction
Control
Control
Control Organisms 1 2 3 4 5 6 7 8 9 10 11 12
Number of Youne Produced
Adult Survival: (L)ive. (D)ead
Treatment
c0aw ev
Treatment
Effluent Percentage=
Treatment 2 Organisms 1 2 3 4 5 6 7 8 9 10 11 12
1
Pass Fail
rAduTItuber of Yount; Produced
:R
x�wa
,,,,�,,�,,,W,,
I
Survival: (L)ive, (D)ead
pH (S.U.) 1st Sample 1st Sam le 2nd Sample
Control
Treatment 2
h W VJ W y n]
D.O. (mg/1) 1st Sam le MSam 2nd Sam le
Control
Treatment 2
LCSO/Acute Toxicity Test
(Mortality expressed as %, combining replicates.)
Concentration (%)
Mortality (%)
Contra
45
1 67.5
90
95
100
0
0
0
0
0
0
Start Date: 02-06-19
Collection (Start) Date:
Sample 1 02-04-19 Sample 2
Sample TypelDuration
cfab COW- t
Sample 1 X 20-h ry
o m u
Sample 2
Q3
h h
Alkalinity (mg CaCO,/L)
Initial / Salted -up Salinity (ppt)
Conductivity (µmhos/cm)
Total Residual Chlorine (mg/L)
Sample Temp. at Receipt (°C)
130 200
25.2 1s125.2
.
3180
<0.10
2.5
LC50 = >100%
Method of Determination
95% Confidence Limits
Trimmed Spearman Karber
NC to NC
Probit
Cn
X
Other: Visual Inspection
8.02
7.88
Control
1 7.7
8.0
8.00
8.16
High Cone.
1 7.9
1 8.1
Organism Tested: Menidia beryllina Duration: 48-hours
pH (S.U.)
DO (mg/L)
DWQformAT-1 (3187) rev. 11195

PO Box 7565
t�= �d'
,40 Environmental Testing Solutions, Inc.
Effluent Toxicity Report Form - Acute Pass/Fail
Facility:
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
Date: February 22, 2019
Morehead Cltv WWTp NPDES #; NC-0026611 Pipe #: 001 County: Carteret
Laboratory Performing Test: Environmental Testin
Signature of Operator in Responsible Charge: ns, Comments:
Signature of Laboratory Supervisor: ect: 13990
Sample: 19020131
Mail Original To: North Carolina Department of Environment and Natural Resources
DWQ/ Environmental Sciences Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
North Carolina Acute Pass/Fail
Toxicity Test
Date: 02-04-19Time:
0750
F
ate: 02-06-19
Sam le/Type/Duration
h
Grab Com . Duration
ca
3
X 24-h
3
k
o
Alkalinity (mg CaCO,/L) 130
Salinity (Initial / Final) (ppt) 25.2 I.5/25.2
Total Residual Chlorine (mg/L) <0.10
Sample Temp, at Receipt {°C) 2.5
Organism Tested
Amerfcamysis )Wysidopsis) ball.
PH (S.U.)
D.O. (mg/L)
Mortality Replicate
Treatment 1 (Control) A B C D
0% 0% 0% 0%
Treatment 2 (Exposure) A B C D
Concentration
Tested 0% 0% 0% 0%
Note: If mean control mortality exceeds I OV the test is considered invalid. S
Calculate using Arc -Sine Calculated Student's t NC
Square Root transformed Tabular Student's t NC
data. (ONE TAILED)
Control
8.02 7.92
Treatment
7.99 8.11
� w
Control
7.7 7.7
Treatment
7.8 7.6
Mean Mortality
PASS
FAIL
Llf
e absolute value of the calculated t is less than or equal to the absolute value of the tabular t check PASS.
e absolute value of the calculated t is greater than the absolute value of the tabular t, check FAIL.
vessels within each treatment have the same response but the treatment two response is
Po greater than the corttro1, check fail.
DWQforrrr AT-2 (8/➢I)__j