NC0079057_Fact Sheet_20190531

Fact Sheet
NPDES Permit No. NCOO79O57
Permit Writer/Email Contact Nick Coco, [e-mail]:
Date: October 18, 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 2°d 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 Manteo/Manteo Wastewater Treatment Plant
Applicant Address:
P.O. Box 246, Manteo, NC 27954
Facility Address:
710 Bowsertown Road, Manteo, NC 27954
Permitted Flow:
0.6 MGD & 1.0 MGD
Facility Type/Waste:
MINOR Municipal; 100% domestic (MAJOR upon expansion to 1
MGD)
Facility Class:
Grade III Biological Water Pollution Control System (WPCS)
Treatment Units:
Mechanical bar screen, grit chamber, aeration basin, two clarifiers,
tertiary traveling bridge filters, chlorine disinfection, dechlorination,
post aeration, pH adjustment, sludge holding tank, sludge digester,
standby power
Pretreatment Program (Y/1)
N
County:
Dare
Region
Washington
Briefly describe the proposed permitting action and facility background: The Town of Manteo has
applied for an NPDES permit renewal at 0.6 MGD with an expansion page at 1.0 MGD for the Manteo
WWTP. The facility serves a population of approximately 1,540 residents. Treated wastewater is
discharged into Shallowbag Bay, a class SC water in the Pasquotank River Basin. The Permittee's
discharge is 100% domestic with no significant Industrial Users (SIUs) and no pretreatment program. The
facility has a primary Outfall 001.
Basin Planning — According to the 2007 Pasquotank River Basin Plan, Shallowbag Bay (534.1 acres) was
Not Rated on an evaluated basis in the aquatic life category due to significant noncompliance issues with
Page 1 of 22

biochemical oxygen demand (BOD) and ammonia permit limits at the Manteo WWTP (Permit
NC0079057). Many of the effluent violations with Manteo WWTP were results of mechanical
malfunctions. During the period since this evaluation, Shallowbag Bay has been removed from the 303(d)
list and, in the last 5 years, Manteo WWTP has reported no limit violations.
2. Receiving Waterbody Information:
3. Effluent Data Summary
Effluent data ..or Outfall Oo is summarized below for the period of September 2014 through September
2018.
Table 1. Effluent Data Summary Outfall 001
Parameter
Receiving Waterbody Information
Outfalls/Receiving Stream(s):
Outfall 001 Shallowbag Bay
Stream Segment:
30-21-(3)
Stream Classification:
SC
Drainage Area (mi2):
-
Summer 7Q10 (cfs)
Tidal
Winter 7Q10 (cfs):
Tidal
30Q2 (cfs):
Tidal
Average Flow (cfs):
Tidal
IWC (% effluent):
100%
303(d) listed/parameter:
No
Subject to TMDL/parameter:
Yes- State wide Mercury TMDL implementation.
Subbasin/HUC:
03-01-51; 03010205
USGS Topo Quad:
D36NW
3. Effluent Data Summary
Effluent data ..or Outfall Oo is summarized below for the period of September 2014 through September
2018.
Table 1. Effluent Data Summary Outfall 001
Parameter
Units
Average
Max
Min
Permit Limit
Flow
MGD
0.27
1.06
0.12
MA 0.6
BOD summer
mg/l
2.21
8
2
WA 7.5
MA 5.0
BOD winter
mg/1
2.21
7
2
WA 15.0
MA 10.0
TSS
mg/1
2.53
6
2.5
WA 45.0
MA 30.0
pH
SU
7.58
8
7
6.8:5 pH:S 8.5
DO
mg/1
8.1
12.8
6
DA > 6.0
NH3N summer
mg/1
0.18
7.5
0.1
WA 6.0
MA 2.0
NH3N winter
mg/1
0.21
10.9
0.1
WA 12.0
MA 4.0
(geometric)
Enterococci
#/100 ml
2.69
180
1
WA 276
MA 35
TRC
µg/1
10.02
25
10
DM 13
Page 2 of 12

TN
mg/l
7.43
10.1
3.6
In Shallowbag Bay, approximately 800 ft northeast of Sandy Point
TP
mg/l
3.12
5.09
0.5
Temperature
0 C
21.16
30.7
2.01
Total Mercury
ng/l
< 200
< 200
< 200
TKN
mg/l
0.92
7.1
0.5
Total Zinc
µg/1
58.38
340
26
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:
A 1990 wasteload allocation (WLA) resulted in instream monitoring at 5 locations (2 upstream locations
and 3 downstream locations) for dissolved oxygen (DO), temperature, pH, salinity and fecal coliform.
With the exception of fecal coliform, all samples were to be collected at the top, middle and bottom of the
water column. The upstream and downstream locations were designated as follows:
Upstream Location 1
The mouth of Doughs Creek
Upstream Location 2
Near the mouth of Scarboro Creek
Downstream Location 1
In Shallowbag Bay, approximately 800 ft northeast of Sandy Point
Downstream Location 2
In Shallowbag Bay, approximately 0.4 miles southeast of Ballast Point
Downstream Location 3
1 In Roanoke Sound, approximately 200 ft outside Shallowba s Bay
During the 2003 permit renewal, the instream monitoring requirement for fecal coliform was removed to
conform with current policy for facilities treating 100% domestic waste [per 2002 Instream Conductivity
and Fecal Coliform Monitoring Guidance].
The current permit requires instream monitoring of temperature, DO, salinity and pH. Upstream and
downstream data were provided by the facility. During this analysis, which utilized data ranging from
November 2016 to August 2018, it was concluded that downstream temperature, at Downstream Location
1 ranged from 4.2 to 30.5 degrees Celsius. Temperatures at Downstream Location 2 ranged from 4.1 to
30.7 degrees Celsius. Temperatures at Downstream Location 3 ranged from 4.4 to 30.4 degrees Celsius.
Upstream temperature at upstream location 1 ranged from 4.2 to 32 degrees Celsius. Temperature at
Upstream Location 2 ranged from 4.5 to 31.4 degrees Celsius. The downstream temperature did not
exceed 32.2 degrees Celsius [per 15A NCAC 02B .0220 (17)] at any downstream location. The
temperature differential did not exceed 0.8 degrees Celsius in the months of June, July, and August at
Downstream Location 2 and Downstream Location 3. The temperature differential was greater than 0.8
degrees Celsius between Downstream Location 1 and Upstream Location 2 on one occasion (8/16/17)
during the months of June, July, and August. During the other months, the temperature differential
exceeded 2.2 degrees Celsius on one occasion (9/25/17) between each downstream location and Upstream
Location 2. Temperature at Upstream Location 2 was significantly lower than that of Upstream Location
Page 3 of 12

I on this occasion. Based on a student's t-test, it was concluded with 95% confidence that there is no
significant difference (p -value > .05) between upstream and downstream temperature.
Dissolved oxygen ranged from 5.9 to 12.3 mg/L at Downstream Location 1. At Downstream Location 2,
DO ranged from 6 to 12.1 mg/L. Downstream DO ranged from 6.3 to 12.3 mg/L at Downstream Location
3. The DO ranged from 5.2 to 12.2 mg/L at Upstream Location 1. Upstream DO at Upstream Location 2
ranged from 5.2 to 12.4 mg/L. Dissolved oxygen did not fall below 5 mg/L downstream of the facility
[per 15A NCAC 02B .0220 (5)] at any downstream location. Based on a student's t-test, it was concluded
with 95% confidence that a statistically significant difference (p -value < .05) between upstream and
downstream DO exists. Though a difference exists, DO is generally higher downstream.
Downstream salinity ranged from 1.3 to 21.4 ppt at Downstream Location 1. At Downstream Location 2,
salinity ranged from 1.2 to 21.3 ppt. Downstream salinity ranged from 1.1 to 21.9 ppt at Downstream
Location 3. Salinity ranged from 1.2 to 23.2 ppt at Upstream Location 1. Salinity ranged from 1.4 to 21.9
ppt at Upstream Location 2. Based on a student's t-test, it was concluded with 95% confidence that no
significant difference (p -value > .05) between upstream and downstream salinity exists.
Downstream pH ranged from 7.1 to 8.5 standard units at Downstream Location 1. At Downstream
Location 2, pH ranged from 7.1 to 8.7 standard units. Downstream pH ranged from 7.3 to 8.6 standard
units at Downstream Location 3. Upstream pH ranged from 7.2 to 8.4 standard units at Upstream
Location 1. At Upstream Location 2, pH ranged from 6.9 to 8.5 standard units. Downstream pH was
within the range of 6.8 to 8.5 standard units for the duration of the review period [per 15A NCAC 02B
.0220 (12)] at Downstream Location 1 but was greater than 8.5 on 2 occasions (8/3/17 and 8/29/18) at
Downstream Location 2 and on 5 occasions (8/2/17, 8/3/17, 8/16/18, 8/28/18 and 8/29/18) at Downstream
Location 3. Upon review of effluent pH data during these dates, it was found that effluent pH was lower
than both upstream and downstream pH and was within the range of 6.8 and 8.5 standard units.
Additionally, based on a student's t-test, it was concluded with 95% confidence that a statistically
significant difference exists (p -value < .05) between upstream and downstream pH. It is believed that the
high pH samples were likely due to background conditions and not due to the facility's discharge.
In the permit renewal application submitted in 2017, the Permittee requested the reduction of instream
sampling from three times per week in June, July, August and September to once per week to be
consistent with winter instream requirements. The Division grants the request from the facility based on
the review of instream data. The Washington Regional Office did not have objections against the request.
Is this facility a member of a Monitoring Coalition with waived instream monitoring (YIN): NO
Name of Monitoring Coalition: NA
5. Compliance Summary
Summarize the compliance record with permit effluent limits (past 5 years): Records were reviewed from
April 2013 to September 2018. The facility reported no limit violations during the review period.
Summarize the compliance record with aquatic toxicity test limits and any second species test results
(past 5 years): The facility passed 19 of 19 quarterly acute toxicity tests and 4 of 4 second species tests
from February 2014 to May 2018.
Summarize the results from the most recent compliance inspection: The last facility inspection conducted
in June 2016 reported that the facility was considered to be in compliance with NPDES permit
NC0079057_
Page 4 of 12

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, HH).
If applicable, describe any other dilution factors considered (e.g., based on CORMLY model results): NA
If applicable, describe any mixing zones established in accordance with 15,4 NCAC 2B. 0204(b): NA
Oxvsen-Consuming Waste Limitations
Limitations for oxygen -consuming waste (e.g., BOD) are generally based on water quality modeling to
ensure protection of the instream dissolved oxygen (DO) water quality standard. Secondary TBEL limits
(e.g., BOD= 30 mg/l for Municipals) may be appropriate if deemed more stringent based on dilution and
model results.
Ifpermit limits are more stringent than TBELs, describe how limits were developed:
Both winter and summer BODS limits were set based on the results of a Georgia Estuary Model (GAEST
— version 2) in the 1990 wasteload allocation (WLA). 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/l (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 current
permit sets a daily maximum limit for TRC of 13 ug/L based on federal criteria for saltwater facilities.
TRC limits were reviewed in the attached wasteload allocation (WLA) and were found to be protective of
the receiving stream. No changes are proposed for TRC.
The current ammonia winter monthly average and summer monthly average limits of 4 mg/L and 2 mg/L
were set based on the results of a Georgia Estuary Model (GAEST — version 2) in the 1990 wasteload
allocation (WLA). In 2003, the Division implemented a statewide policy resulting from EPA
requirements that set weekly average ammonia limits based on a 3:1 ratio with the monthly average. As a
result, the permit adopted weekly winter and summer ammonia limits of 12 mg/L and 6 mg/L,
respectively. Based o the attached WLA designed to protect aquatic life from ammonia nitrogen toxicity,
the limited for ammonia nitrogen at 1 MGD have been reduced to 1 mg/L in the summer and 2.0 mg/L in
the winter. No changes are proposed at the 0.6 MGD flow tier.
Page 5 of 12

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 June 2013 and
March 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: NA
• 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: Zinc,
Nickel
• No Limit or Monitoring: The following parameters will not receive a limit or monitoring, since
they did not demonstrate reasonable potential to exceed applicable water quality
standards/criteria and the maximum predicted concentration was <50% of the allowable
concentration: NA
• 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: Dibromochloromethane, Copper
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: Bis (2-
Ethylhexyl) phthalate, Bromodichloromethane, Bromoform
o The following parameters will not receive a limit or monitoring, since they did not
demonstrate reasonable potential to exceed applicable water quality standards/criteria and
the maximum predicted concentration was <50% of the allowable concentration: Arsenic,
Cadmium, Total Phenolic Compounds, Chromium, Cyanide, Lead, Selenium, Silver
■ Permittee shall monitor to lowest PQL
• Arsenic (PQL 2 ug/L)
• Cadmium (PQL 0.5 ug/L)
• Lead (PQL 2 ug/L)
• Silver (PQL 1 ug/L)
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.
Page 6 of 12

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 Minor POTW, and an acute WET limit at 90%
effluent will continue on a quarterly frequency.
Mercua Statewide TMDL Evaluation
There is a statewide TMDL for mercury approved by EPA in 2012. The TMDL target was to comply
with EPA's mercury fish tissue criteria (0.3 mg/kg) for human health protection. The TMDL established a
wasteload allocation for point sources of 37 kg/year (81 lb/year), and is applicable to municipals and
industrial facilities with known mercury discharges. Given the small contribution of mercury from point
sources (-2% of total load), the TMDL emphasizes mercury minimization plans (MMPs) for point source
control. Municipal facilities > 2 MGD and discharging quantifiable levels of mercury (>1 ng/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/1.
Table 2. Mercury Effluent Data Summary (0.6 & 1.0 MGD)
2013
2014
2017
2018
# of Samples 1
1
1
2
Annual Average Conc. n < 200
< 200
< 200
100.3
Maximum Conc., n < 200
< 200
< 200
< 200
Describe proposed permit actions based on mercury evaluation:
The Permittee monitored for Total Mercury using an insufficiently sensitive method in 4 of the 5 samples
reported in their DMR. The Permittee shall monitor for total mercury using EPA method 1631 E. If the
aforementioned method or a more sensitive method is not used at the next permit renewal, enhanced
monitoring shall be placed in the permit. The Permittee provided one sample in December 2018 analyzed
using EPA Method 1631 E. The sample came back as 0.605 ng/L. Since the facility is <2 MGD, no
mercury minimization plan (MMP) is required. No changes are proposed for mercury.
Other TMDL/Nutrient Management Strategy Considerations
If applicable, describe any other TMDLs/Nutrient Management Strategies and their implementation
within this permit: NA
Other WOBEL Considerations
If applicable, describe any other parameters of concern evaluated for WQBELs: NA
If applicable, describe any special actions (HQW or OR 99 this receiving stream and classification shall
comply with in order to protect the designated waterbody: NA
Page 7 of 12

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 and
dibromochloromethane demonstrated reasonable potential to exceed the facility's allowable discharge
concentration based on state surface water standards and EPA Nationally Recommended Water Quality
Criteria, monthly average and daily maximum limits have been put in the permit. After discussing the
limits with the Town, the Town requested a schedule of compliance to provide time to locate issues and
come into compliance with the new limits, a 3 -year compliance schedule has also been put in the permit.
Within 1 year of the permit's effective date, the Town shall submit to DWR an Action Plan for Division
approval, summarizing the strategy or actions to be taken to achieve compliance with the Total Copper
and Dibromochloromethane limitations. The plan will include specific dates for completion or
implementation of each action. Within 2 years of the permit's effective date, the Town shall submit a
report to the Division summarizing actions taken in accordance with the Action Plan. The Town shall
achieve compliance with Total Copper and Dibromochloromethane limitations within 3 years of the
permit's effective date.
If applicable, describe any water quality standards variances proposed in accordance with NCGS 143-
215.3(e) and 15A NCAC 2B. 0226 for this permit renewal: NA
7. Technology -Based Effluent Limitations (TBELs)
Municipals (if not applicable, delete and skip to Industrials)
Are concentration limits in the permit at least as stringent as secondary treatment requirements (30 mg/7
BOD5/TSS for Monthly Average, and 45 mg/l for BOD5/TSS for Weekly Average). YES
If NO, provide a justification for alternative limitations (e.g., waste stabilization pond). NA
Are 85% removal requirements for BOD5/TSS 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 Engineering Alternatives
Analysis (EAA) and any water quality modeling results: NA
9. Antibacksliding Review:
Sections 402(o)(2) and 303(d)(4) of the CWA and federal regulations at 40 CFR 122.44(1) prohibit
backsliding of effluent limitations in NPDES permits. These provisions require effluent limitations in a
reissued permit to be as stringent as those in the previous permit, with some exceptions where limitations
Page 8 of 12

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): NC
If YES, confirm that antibacksliding provisions are not violated: NA
10. Monitoring Requirements
Monitoring frequencies for NPDES permitting are established in accordance with the following
regulations and guidance: 1) State Regulation for Surface Water Monitoring, 15ANCAC 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(0) 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 Manteo applied for monitoring frequency reductions for BODS, Total Suspended Solids,
NH3-N and Enterococci in May 2017. Based on DWR Guidance Regarding the Reduction of Monitoring
Frequencies in NPDES Permits for Exceptionally Performing Facilities, the Division has decided to grant
the request.
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 3. Current Permit Conditions and Proposed Changes 0.6 & 1.0 MGD
Parameter
Current Permit
Proposed Change
Basis for Condition/Change
Flow
MA 0.6 & 1.0 MGD
No change
15A NCAC 2B.0505
BODS
Summer:
Monitor 2/week
WQBEL. Based on 1990 WLA
MA 5 mg/L
GAEST Model results.
WA 7.5 mg/L
NPDES Guidance Regarding the
Winter:
Reduction of Monitoring Frequencies
MA 10 mg/L
in NPDES Permits for Exceptionally
WA 15 mg/L
Performing Facilities
Monitor 3/week
NH3-N
Summer (0.6 & 1.0
Summer (1.0 MGD):
WQBEL. Based on results of 1990
MGD):
MA 1.0 mg/L
WLA GAEST Model results and 2003
MA 2.0 mg/L
WA 3.0 mg/L
DWR Weekly Ammonia Limit Policy
WA 6.0 mg/L
Winter (1.0 MGD):
and 2019 WLA review.
Winter (0.6 & 1.0
MA 2.0 mg/L
DWR Guidance Regarding the
MGD):
WA 6.0 mg/L
Reduction of Monitoring Frequencies
MA 4.0 mg/L
Both flow tiers:
in NPDES Permits for Exceptionally
WA 12.0 mg/L
Monitor 2/week
Performing Facilities
Monitor 3/week
Page 9 of 12

Total Suspended Solids
MA 30 mg/L
Monitor 2/week
TBEL. Secondary treatment limits
WA 45 mg/L
15A 213 .0400
Monitor 3/week
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
Monitor 3/week
December 2004. DWR Guidance
Regarding the Reduction of
Monitoring Frequencies in NPDES
Permits for Exceptionally Performing
Facilities
Dissolved Oxygen
Effluent DA > 6 mg/L
Instream Monitoring
WQBEL. Based on 1990 WLA
Instream Monitoring
1/week year-round
GAEST Model results.
3/week during June,
Instream sampling review.
July, August and
September
Temperature
Effluent monitoring
Instream Monitoring
WQBEL. State WQ standard, 15A
daily
1/week year-round
NCAC 2B.
Instream Monitoring
Instream sampling review.
3/week during June,
July, August and
September
pH
6.8 — 8.5 SU in Effluent
Instream Monitoring
WQBEL. 15A NCAC 02B .0220
Instream Monitoring
1/week year-round
standards for SC Waters.
3/week during June,
Instream sampling review.
July, August and
September
Salinity
Instream Monitoring
Instream Monitoring
Instream sampling review.
3/week during June,
1/week year-round
July, August and
September
Total Nitrogen
Quarterly monitoring
No change @ 0.6
State Surface Water Monitoring
@ both flow tiers
MGD
Report, 15A NCAC 2B .0500
Monthly Monitoring
@ 1.0 MGD
Weekly Monitoring @
Quarterly monitoring
For consistency with Total Nitrogen
both flow tiers
@ 0.6 MGD
Monthly Monitoring
@ 1.0 MGD
Total Phosphorus
Quarterly monitoring
No change
State Surface Water Monitoring
Report, 15A NCAC 2B .0500
Total Residual Chlorine
DM 13 ug/L; only
No change
WQBEL; Based on federal criteria for
applies if chlorine is
saltwater facilities.
added
Total Mercury
Monitor once per 5
No change
Based on NPDES Implementation of
years while in 0.6
2012 Statewide Mercury TMDL.
MGD flow tier
Total Zinc
Quarterly monitoring
No change
Based on results of RPA. Predicted
Max > 50% of Allowable Cw - apply
Quarterly Monitoring
Page 10 of 12

Total Nickel
No requirements
Quarterly Monitoring
Based on results of RPA. Predicted
Max > 50% of Allowable Cw - applv
Quarterly Monitoring
Total Copper
No requirements
MA 3.70 ug/L
WQBEL. State WQ standard, 15A
DM 5.80 ug/L
NCAC 2B. Based on results of RPA.
Monthly monitoring
One high exceedance and multiple
non -detects with insufficiently
sensitive methods — apply limit and
monthly monitoring
Dibromochloromethane
No requirements
MA 21.0 ug/L
WQBEL. State WQ standard, 15A
DM 21.0 ug/L
NCAC 2B. Based on results of RPA.
Monthly monitoring
RPA for Limited Dataset (n<8) but 2
values > Allowable Cw - apply
Monthly Monitoring with Limit
Bromoform
No requirements
Quarterly monitoring
Based on results of RPA. Predicted
Max > 50% of Allowable Cw - apply
Quarterly Monitoring
Bromodichloromethane
No requirements
Quarterly Monitoring
Based on results of RPA; No detect
above allowable discharge; RPA for
Limited Dataset (n<8 samples) - apply
Quarterly Monitoring
Bis (2-Ethylhexyl)
No requirements
Quarterly Monitoring
Based on results of RPA; Only 1
phthalate
detect above allowable discharge;
RPA for Limited Dataset (n<8
samples) - apply Quarterly Monitoring
Acute Toxicity
Acute limit, 90%
No change
WQBEL. No toxics in toxic amounts.
effluent, Quarterly
15A NCAC 2B.0200 and 15A NCAC
2B.0500
Effluent Pollutant Scan
Three times per permit
No change
40 CFR 122
cycle upon expansion
to 1.0 MGD
Electronic Reporting
No requirement
Electronic Reporting
In accordance with EPA Electronic
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: March 5, 2019
Per 15A NCAC 2H .0109 & .0 111, 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. Fact Sheet Addendum (if applicable):
Were there any changes made since the Draft Permit was public noticed (Yes/No): Yes
If Yes, list changes and their basis below:
Page 11 of 12

• In response to a comment received from both the Washington Regional Office on March 7, 2019
and Josh O'Brien, Utilities Superintendent for the Town of Manteo, on March 8, 2019, footnotes
in both Section A.(1) and A.(2) have been rearranged to match their appropriate parameters.
• In response to a comment received from Becky Breiholz of the Town of Manteo on March 12,
2019 informing the Division of Kermit Skinner's retirement and providing documentation of
change in ownership and signatory delegation for the Manteo WWTP to the new Town Manager,
James Ayers II, the final cover letter has been addressed to James Ayers II.
• Upon further analysis of parameters for reasonable potential to exceed maximum allowable
discharges based on EPA Nationally Recommended Water Quality Criteria, quarterly monitoring
for bis (2-ethylhexyl) phthalate, bromoform and bromodichloromethane, and monthly monitoring
and limits for dibromochloromethane have been added to the permit.
• Per 15A NCAC 2B .0508, the frequency of total nitrogen monitoring has been changed from
quarterly to monthly for the 1.0 MGD flow tier.
• To be consistent with total nitrogen monitoring dictated by 15A NCAC 2B .0508, the TKN
monitoring frequencies have been changed to quarterly at the 0.6 MGD now tier and monthly at
the 1.0 MGD flow tier.
The draft permit was also submitted to the DWR Operator Certification Program and the DWR Aquatic
Toxicology Branch. No comments were received from each of these groups.
15. Fact Sheet Attachments (if applicable):
• Comments received in Public Notice
• RPA Spreadsheet Summary
• Effluent Pollutant Scan Results
• BOD and TSS Removal
• Instream Monitoring Summary
• Monitoring Reduction Summary
• Toxicity Page Summary
• Limit Violation Summary
• NPDES Compliance Inspection Report
Page 12 of 12

4/11/2019
Mail - [e-mail]
RE: Draft Permit Manteo WWTP, NPDES Permit Number NC0079057,
SIC Code 4952
Tankard, Robert
Thu 3/7/2019 11:54 AM
To:Coco, Nick A <[e-mail]>;
cc:Bullock, Robert <robert.e.buIlock@ncdenrgov>;
Nick, on schedule A; please change the footnote references for Acute Toxicity, Total Mercury and the physical parameters to
correspond with the correct footnotes at the bottom of the page. Apparently both schedules need to be addressed.
Thanks!
Robert
From: Coco, Nick A
Sent: Tuesday, March 5, 2019 3:25 PM
To: Tankard, Robert <[e-mail]>
Subject: Draft Permit Manteo WWTP, NPDES Permit Number NC0079057, SIC Code 4952
Dear Robert,
Please see attached for the draft permit, cover letter and fact sheet for the Manteo WWTP NPDES Permit NC0079057. The
facility requested and was granted monitoring frequency reductions for BOD, ammonia, TSS and Enterococci based on our
guidance. After reviewing their instream data, we decided to grant their request to have instream monitoring be weekly
year-round. They did have high values for copper and a limit has been added to the permit as well as a compliance schedule.
You have a 30 -day period ending on 04/05/19 to comment, ask questions, or request an extension to review this draft
permit. Please contact me with any comments you might have.
Thanks and have a nice day.
Nicholas A. Coco, Ell
Engineer
NPDES Complex Permitting Unit
NC DEQ / Division of Water Resources / Water Quality Permitting
919 707-3609 office
919 707 9000 main office
[e-mail],v
Physical Address: 512 North Salisbury St.,Raleigh, NC, 27604
Mailing Address: 1617 Mail Service Center, Raleigh, NC, 27699-1617
' <'—'Nothing Compares
M
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4/11/2019
Mail - [e-mail]
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
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41 1 I14V IV rviau - rvu;R.%.uwVnwarn.9uv
[External] Draft Permit Concerns
Josh O'Brien <[e-mail]>
Fri 3/8/2019 12:15 PM
To:Coco, Nick A <Nick.Coco@ncdencgov>;
�. External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
[e-mail]
Good afternoon,
I talked with Robert Tankard with the Washington Regional Office this morning regarding a couple of concerns with the draft permit. He advised
that I follow our conversation with an email.
We discussed the foot notes not coordinating with A. (1) for Total Copper, Acute Toxicity, Total Mercury, Total Residual Chlorine and Instream
Monitoring.
Also, what is currently Footnote 4, it states that metals shall coordinate with chronic toxicity monitoring. We are under acute toxicity monitoring
not chronic toxicity at this time. For Total Copper, both footnotes 4 and 5 are listed which conflicts the schedule if metals are to be taken quarterly
when there is a required monthly limit. This implies that we will have to take monthly Total Copper as well as Total Copper when we take acute
toxicity with Nickel and Zinc.
The only other question was does Total Nitrogen and Total Phosphorous have to be taken on the same months as acute toxicity and metals.
Thank you,
Josh
Josh O'Brien
Utilities Superintendent
Town of Manteo
Direct: [phone]
Cell: [phone]
o bri e n ,�townofm a nteo.co m
https://outlook.office365.comIowa/?realm=ncdenr.gov&exsvurl=l &II-cc=1033&modurl=0&path=/mail/search 1 /1

4/11/2019
Mail - [e-mail]
[External] Draft NPDES Permit Renewal Permit NCO079O57 Manteo NC
Becky Breiholz <[e-mail]>
Tue 3/12/2019 3:40 PM
To:Coco, Nick A <[e-mail]>;
Cdames Ayers <[e-mail]>;
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an
attachment to [e-mail]< it •r spam@Mgov>
Dear. Mr. Coco,
We are in receipt of your letter dated March 5, 2019, we need to make a
change to who you address all correspondence to in the future. Mr.
Kermit Skinner has retired and our new Town Manager is James Ayers, II
could you please correct your records to that fact. If you have any
questions please do not hesitate to contact me. Thanks.
Becky Breiholz, MMC, NCCMC
Town of Manteo
P.O. Box 246
Manteo, NC 27954
252-473-2133 (phone)
252-473-2135 (fax)
Email correspondences to and from this address are subject to public records requests pursuant to the North Carolina
Public Records Law, resulting in monitoring and potential disclosure of this message to third parties.
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DWR
Division of Water Resources
Submitter Change Request Form — (Add/update users)
North Carolina Electronic Discharge Monitoring Report System
EDMR registered Owners may use this form to add or update eDMR users to the NCDWR's Electronic
Discharge Monitoring Report system. If the Organization is not currently registered for eDMR, then the
Owner or designated Responsible Oficial will need to complete the required eDMR Registration Form
(available from the eDMR website) and submit it to the NCDWR eDMR Administrator at the address
below.
Type of Request (please select):
X Add Submitter Permissions: (See Section B)
Update Submitter Permissions: (See Section B)
To add or update eDMR user permissions, please provide the following information:
Section A: Owner Information
NPDES Permit Number:
NCO079057
Owner/ Organization Name:
James Ayers 11 / Town of Manteo
Responsible Official
(as identi red in accordance with f
James Ayers II
Street Address:
PO Bo 246
Manteo
City:
State / Zip Code:
NC / 27954
Telephone number:
( 252) 473-2133
E-mail address:
[e-mail]
Section B: Activate New Submitter or Update Existing User
Please complete the Submitter User Details on page 2 for the individuals who will need Submitter
permissions or to update Submitter details, such as adding additional permits, to an existing user.
Submitter permissions can only be assigned by the NCDWR eDMR Administrator. Note: The Owner
and Facility Administrator can deactivate or delete eDMR user permissions for any individual within
its organization, including Submitter permissions.
The Submitter is equivalent to the individual who signs the certification statement on the back of the
DischyUe Monitoring Retort. The Submitter must be an individual with delegated signatory authority
for the Owner/Organization. if individuals other than the Responsible Official for the Owner have been
delegated signatory authority, the Division of Water Resources must be notified in writing of such
delegations. A delegation of authority form is available from the eDMR website.
In addition to the User Details, please specify the NPDES permit(s) that each user will be associated with
for eDMR submittal. Should additional space be needed for users and/or permits, please make additional
copies of the Submitter User Details page and complete as needed.
NCDWR eDMR Submitter Change Request Form - ver. 1.0

Submitter User Details
Permit No. (s):
NCO079057
First Name:
James
Middle Name:
Ayers II
( 252) 473-2133
[e-mail] User ID:
(Assigned by NCDWR eDMR Administrator
Last Name:
Phone Number:
Email:
Select Request
Type:
© Add User Permission
2/11/19
Add/Update User Permission as of (Date):
❑ Update User Permission
Submitter User Details
Permit No. (s):
First Name:
Middle Name:
Last Name:
Last Name:
Phone Number.
( )
Email:
Email:
User ID:
(Assigned by NCDWR eDMR Admfnistrator
Select Request
Type:
❑ Add User Permission
Add/Update User Permission as of (Date):
❑ Update User Permission
Submitter User Details
Permit No. (s):
First Name:
Middle Name:
Last Name:
Phone Number:
( )
Email:
User ID:
(Assigned by NCDWR eDMR Administrator
Select Request
Type:
❑ Add User Permission
Add/Update User Permission as of (Date):
❑ Update User Permission
NCDWR eDMR Submitter Change Request Form - ver. 1.0 Page 2

Responsible Official Authorization
The Responsible Official, as identified in accordance with .0 CFR 122.22, is the appropriate individual
with the authority to sign reports for the organization.
1, James Ayers II
Town of Manteo
(printed name), have the authority to make this request for
(Owner/Organization Name).
I request the NCDWR add or update the eDMR Submitter user permission(s) as indicated above on the
Submitter User Details page.
I f Pt Town Manager
O er/Responsible Official Signature Title
Date
Please return the completed form to the NCDWR eDMR Administrator via:
Fax: or E-mail: or Mail to:
[phone] eDMRadmin(@ncdenr.gov Information Processing Unit
Attn: eDMR Registration
1617 Mail Service Center
Raleigh, NC 27699-1617
NCDWR eDMR Submitter Change Request Form - ver. 1.0 Page 3

ROY COOPER
MICHAEL S. REGAN
LINDA CULPEPPER
Water Resources
£NVIRONMENTAt QUALITY
PERMIT NAME/OWNERSHIP CHANGE FORM
I. CURRENT PERMIT INFORMATION:
Permit Number: NCO079057 or NCGS / / / /
1. Facility Name: Town of Manteo WWTP
II. NEW OWNER/NAME INFORMATION:
1. This request for a name change is a result of:
a. Change in ownership of property/company
b. Name change only
X c. Other (please explain):Chanae in Responsible Official only from Kermit'Skinner to James Avers it
2. New owner's name (name to be put on permit):
James Avers II
3. New owner's or signing official's name and title:
4. Mailing address: PO Box 246 City: Manteo
James Ayers II
(Person legally responsible for permit)
Town Manager
(Title)
State:NC Zip Code:27954 Phone: [phone]
E-mail address:[e-mail]
THIS APPLICATION PACKAGE WILL NOT BE ACCEPTED BY THE DIVISION UNLESS ALL OF THE
APPLICABLE ITEMS LISTED BELOW ARE INCLUDED WITH THE SUBMITTAL.
REQUIRED ITEMS:
1. This completed application form
2. Legal documentation of the transfer of ownership (such as a property deed, articles of
incorporation, or sales agreement)
[see reverse side of this page for signature requirements]
State of North Carolina I Environmental Quality I Water Resources
1617 Mail Service Center I Raleigh, NC 27699-1617
919 807 6300 919-807-6389 FAX
https://deq.ne.gov/about/divisions/water-resources/water-resources-permits/wastewater-branch/npdes-wastewater-permits

NPDES Name & ownership Change
Page 2 of 2
Applicant's Certification:
I, James Ayers II, attest that this application for a name/ownership change has been reviewed
and is accurate and complete to the best of my knowledge. I understand that if all required
parts of this application are not completed and that if all required supporting information and
attachments are not included, this application package will be returned as incomplete.
lZl�i //f ��
Signature:_ Date: Q.)--1
THE COMPLETED APPLICATION PACKAGE, INCLUDING ALL SUPPORTING
INFORMATION & MATERIALS, SHOULD BE SENT TO THE FOLLOWING ADDDRESS:
NC DEQ / DWR / NPDES
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Version I112017

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REASONABLE POTENTIAL ANALYSIS - DATA
va10e6" Peen "C.0p,
Mdyltnuro data
re.,uts _ S:
2.0125
4.1000
0.6000
5
2.3200
5.0 ug/L
11.6 ug/L
Date Data
1 6/6/2013 <
2 12/5/2014 <
3 5/8/2017 <
4 8/13/2018 <
5 12/28/2018 <
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
1 55
56
57
58
Cadmium
BDL=112DL
Results
10 5
Std Dev.
Arsenic
Mean
10 5
Date
Data
n
BDL=112DL
Results
1
6/612013
<
10
5
Std Dev.
2
12/5/2014
<
10
5
Mean
3
5/8/2017
<
10
5
C.V. (default)
4
8/13/2018
<
10
5
n
5
12128/2018
<
1
0.5
6
Mult Factor =
7
Max. Value
8
Max. Pred Cw
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
va10e6" Peen "C.0p,
Mdyltnuro data
re.,uts _ S:
2.0125
4.1000
0.6000
5
2.3200
5.0 ug/L
11.6 ug/L
Date Data
1 6/6/2013 <
2 12/5/2014 <
3 5/8/2017 <
4 8/13/2018 <
5 12/28/2018 <
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
1 55
56
57
58
Cadmium
BDL=112DL
Results
10 5
Std Dev.
10 5
Mean
10 5
C.V. (default)
10 5
n
1 0.5
Mult Factor =
Max. Value
Max. Pred Cw
vahw' , 9x -'(.CN,)-.
Maxlmun, dztz
pants = 5C
4.1000
0.6000
5
2.3200
5.00 ug/L
11.60 ug/L
RPA Manteo,data
Date)

REASONABLE POTENTIAL ANALYSIS - DATA
Total Phenolic Compounds
Date Data
1 6/10/2013 <
2 12/10/2014 <
3 5/9/2017 <
4 8/13/2018 <
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
BDL=112DL
Results
5 5
Std Dev.
5 5
Mean
5 5
C.V.(default)
5 5
n
Mult Factor =
Max. Value
Max. Pred Cw
VOLM, leen 'COPY'
. marlmµm dads
Chromium, Total
Valuos' then -COPY'
MRAWWM ddas
pornta = 66
Vulnb - se
1
Date
6/6/2013
Data
<
10
BDL=112DL
5
Results
Std Dev.
0.'.
0.00ao
5.0000
2
12/5/2014
<
10
5
Mean
5.0000
0.6000
3
5/8/2017
<
10
5
C.V. (default)
0.6000
4
4
8/13/2018
<
10
5
n
4
5
2.5900
6
Mult Factor =
2.5900
5.0 ug/L
7
Max. Value
5.0 ug/L
13.0 ug/L
8
Max. Pred Cw
13.0 ug/L
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
RPA Manteo,data
Date)

REASONABLE POTENTIAL ANALYSIS - DATA
Cyanide
BDL=1/2DL
Results
5 5
Copper
5 5
Values" then "COPY -
5 5
C.V. (default)
5 5
n
Mult Factor =
_
Maximum data
Max. Pred Cw
P00% 5(
Date Data
BDL=112DL
ResultsDate
Data
1
6/6/2013 <
10
5
Std Dev.
4.1231
1
6/17/2013
<
2
12/5/2014 <
10
5
Mean
6.0000
2
12/5/2014
<
3
5/8/2017 <
10
5
C.V. (default)
0.6000
3
5/8/2017
<
4
8/13/2018
13
13
n
5
4
8/17/2018
<
5
12/28/2018
2
2
5
6
Mult Factor =
2.3200
6
7
Max. Value
13.00 ug/L
7
8
Max. Pred Cw
30.16 ug/L
8
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
Cyanide
BDL=1/2DL
Results
5 5
Std Dev.
5 5
Mean
5 5
C.V. (default)
5 5
n
Mult Factor =
Max. Value
Max. Pred Cw
VutuW then -COPY'
Mammon, data
Dooms = 58
0.0000
5.0000
0.6000
4
2.5900
5.0 ug/L
13.0 ug/L
RPA Manteo,data
Date)

REASONABLE POTENTIAL ANALYSIS - DATA
RPA Manteo,data
Date)
Lead
va�vas- Imes -COPY-
Nickel
Nickel
vatisW n=on -CCWV
Mrs imum dila
m daSa
pWnls - Sa
prints = 56
Date
Data
BDL=112DL
Results
Data
Data
BDL=1/2DL
Results
1
6/6/2013
<
10
5
Std Dev.
2.0125
1
6/6/2013
10
10
Std Dev.
3.3615
2
12/5/2014
<
10
5
Mean
4.1000
2
12/5/2014
<
10
5
Mean
5.1000
3
5/8/2017
<
10
5
C.V. (default)
0.6000
3
5/8/2017
<
10
5
C.V. (default)
0.6000
4
8/13/2018
<
10
5
n
5
4
8/1312018
<
10
5
n
5
5
12/28/2018
<
1
0.5
5
12/28/2018
<
1
0.5
6
Mult Factor =
2.32
6
Mult Factor =
2.3200
7
Max. Value
5.00 ug/L
7
Max. Value
10.00 ug/L
8
Max. Pred Cw
11.60 ug/L
8
Max. Pred Cw
23.20 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 Manteo,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
Mult Factor = 2.5900
Max. Value 5.0 ug/L
Max. Pred Cw 13.0 ug/L
5 12/28/2018
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
1 0.5
Mult Factor = 2.3200
Max. Value 5.00 ug/L
Max. Pred Cw 11.60 ug/L
RPA Manteo,data
Date)
Selenium
\'nfUe t" @ren `COPT^
Silver
value..' hmd "COPi'^
I
Maximum data
Maxrnwm dak
p,8nts _ sn
pant- c ,yg
Date
Data
BDL=112DL
Results
Date
Data
BDL=112DL
Results
6/6/2013
<
10
5
Std Dev.
_
0.0300
1
6/6/2013
<
10
5
Std Dev.
_
2.0125
12/5/2014
<
10
5
Mean
5.0000
2
12/5/2014
<
10
5
Mean
4.1000
5/8/2017
<
10
5
C.V. (default)
0.6000
3
5/8/2017
<
10
5
C.V. (default)
0.6000
8/13/2018
<
10
5
n
4
4
8/13/2018
<
10
5
n
5
Mult Factor = 2.5900
Max. Value 5.0 ug/L
Max. Pred Cw 13.0 ug/L
5 12/28/2018
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
1 0.5
Mult Factor = 2.3200
Max. Value 5.00 ug/L
Max. Pred Cw 11.60 ug/L
RPA Manteo,data
Date)

Date Data
1 6/10/2013
2 12/5/2014
3 313/2015
4 12/8/2015
5 3/8/2016
6 12/13(2016
7 3/14/2017
8 5/8/2017
9 12/4/2017
10 3/6/2018
11 8/13/2018
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
Zinc
Results
vaiues'17'�n "COPT"
22.8
Std Dev.
18.4
MagilTli dma
Mean
0.5
0.25
pumtt F'0
13.4
BDL=1/2DL
Results
34
34
Std Dev.
10 5 7 3fi
39
39
Mean
42.0000
26
26
C.V.
0.2518
37
37
n
11
35
35
43
43
Mult Factor =
1.2600
48
48
Max. Value
60.0 ug/L
35
35
Max. Pred Cw
75.6 ug/L
60
60
46
46
59
59
Bromodichioromethane
Date Data
1 5/17/2017
2 6/24/2013
3 12/29/2014 <
4 9/26/2018
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
vaww /hen'Copr
paints = 58
9.7620
13.7125
0.6000
4
2.5900
22.80000 Ng/L
59.05200 Ng/L
RPA Manteo,data
Date)
BDL=1/2DL
Results
22.8
22.8
Std Dev.
18.4
18.4
Mean
0.5
0.25
C.V. (default)
13.4
13.4
n
Mult Factor =
Max. Value
Max. Fred Cw
vaww /hen'Copr
paints = 58
9.7620
13.7125
0.6000
4
2.5900
22.80000 Ng/L
59.05200 Ng/L
RPA Manteo,data
Date)

REASONABLE POTENTIAL ANALYSIS - DATA
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
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
RPA Manteo,data
Date)
Bromoform
Vi1rC_"thcr.'CU4T
L
DibromochloromethaneVa,U,,,u,"'`
_
. —ia—, d-
.
_ _
_I
_ kax,mc:m ce:
Date Data
BDL=1/2DL
Results
Date
Data
BDL=112DL
Results
1
5/17/2017
36.5 36.5
Std Dev.
17.7849
1
5/1712017
62.4
62.4
Std Dev.
24.5076
2
6/24/2013
31.4 31.4
Mean
18.7625
2
6/24/2013
47.5
47.5
Mean
35.2100
3
12/29/2014
6.15 6.15
C.V. (default)
0.6000
3
12/29/2014
23.6
23.6
C.V. (default)
0.6000
4
9/26/2018
1 1
n
4
4
9/26/2018
7.34
7.34
n
4
5
5
6
Mult Factor =
2.5900
6
Mult Factor =
2.5900
7
Max. Value
36.50000 Ng/L
7
Max. Value
62.40000 Ng/L
8
Max. Pred Cw
94.53500 ug/L
8
Max. Pred Cw
161.61600 pg/L
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
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
RPA Manteo,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
Bis 2-eth the I
i Y XY % phthalate
vahues 'wn `COM
hUxtm� d,ta
points = 65
Date Data
BDL=112DL
Results
_
5/17/2017
17.2
17.2
Std Dev.
7.3458
6/24/2013 <
5
2.5
Mean
6.1813
12/29/2014 <
5
2.5
C.V. (default)
0.6000
9/26/2018 <
5.05
2.525
n
4
Mult Factor = 2.5900
Max. Value 17.20000 Ng/L
Max. Pred Cw 44.54800 Ng/L
RPA Mantec,data
Date)

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Maj
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33333;
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p 10 10 lC l0 t6 �
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N
ANALYTICAL & CONSULTING
CHEMISTS
Town of Manteo
Post Office Box 246
Manteo NC 27954
Attention: Shannon Twiddy
Lab ID Sample ID: Pollutant Scan
13-15075 Site: Effluent
Test
Oil & Grease (O&G)
Arsenic
Beryllium
Cadmium
Chromium
Copper
Lead
Nickel
Selenium
Silver
Zinc
Antimony
Thallium
Mercury
Cyanide
Ammonia Nitrogen
Total Kjeldahl Nitrogen (TKN)
Inorganic Phenols
1,1,1 -Trichloroethane
1,1,2,2 -Tetrachloroethane
1,1,2 -Trichloroethane
1, 1 -Dichloroethane
1,1-Dichloroethene
1,2 -Dichlorobenzene
1,2-Dichloroethane
1,2-Dichloropropane
Environmental Chemists, Inc.
6602 Windmill Way • Wilmington, NC 28405
[phone] (Lab) • (910).392-4424 (Fax)
710 Bowsertown Road • Manteo, NC 27954
[phone]
AICDENR: DWQ CERTIFICATE #94. DIS CERTIFICATE #37729
Date of Report: Jun 24, 2013
Customer PO #:
Report #: 2013-06231
Report to: Shannon Twiddy
Project ID: Pollutant Scan
Collect Date/Time Matrix Sampled by
6/3/2013 11:15 AM Water Josh O'Brien
Method Results Date Analyzed
EPA 1664
EPA 2001
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 200.8
EPA 200.8
EPA 245.1
EPA 335.4
EPA 350.1
EPA 351.2
EPA 420.1
EPA 624
EPA 624
EPA e24
EPA 624
EPA 624
EPA 624
EPA 624
EPA 624
<5 mg/L
<0.010 mg/L
<0.010 mg/L
<0.010 mg/L
<0.010 mg/L
<0.010 mg/L
<0.010 mg/L
0.010 mg/L
<0.010 mg/L
<0.010 mg/L
0.034 mg/L
<0.010 mg/L
<0.010 mg/L
<0.0002 mg/L
< 0.005 mg/L
< 0.2 mg/L
1.0 mg/L
<0.004 mg/L
< 0.50 pg/L
< 0.50 pg/L
< 0.50 pg/L
< 0.50 pg/L
< 0.50 pg/L
< 0.50 pg/L
< 0.50 pg/L
< 0.50 pg/L
06/06/2013
06/0612013
06/0612013
06/0612013
06/06/2013
06/06/2013
06106/2013
06/06/2013
06/06/2013
06/06/2013
06/1012013
06/07/2013
06/07/2013
06/11/2013
06/17/2013
06/05/2013
06/06/2013
06/13/2013
6/6/2013
6/6/2013
6/6/2013
6/6/2013
6/6/2013
6/6/2013
6/6/2013
6/6/2013
Report #:: 2013-06231 Page 1 of 5

envirochem
ANALYTICAL & CONSULTING
CHEMISTS
Town of Manteo
Post Office Box 246
Manteo NC 27954
Attention: Shannon Twiddy
Environmental Chemists, Inc.
6602 Windmill Way - Wilmington, NC 28405
(910) 39240223 (Lab) - (910) 3924424 (Fax)
710 Bowmtown Road - Manteo, NC 27954
[phone]
NCDENR: DWQ CERTIFICATE #94. DLS CERTIFICATE #37729
Date of Report: Jun 24, 2013
Customer PO #:
Report M 2013-06231
Report to: Shannon Twiddy
Project ID: Pollutant Scan
1,3 -Dichlorobenzene
T EPA 824
<0.5011g1L
6/6/2013
1,4 -Dichlorobenzene
EPA 624
< 0.60 pg/L
6/6/2013
2-Chloroethylvinyl ether
EPA 624
< 0.50 pg/L
6/6/2013
Acrolein
EPA 624
< 5.00lig/L
6/6/2013
Acrylonitrile
EPA 624
< 5.00 pg/L
6/6/2013
Benzene
EPA 624
< 0.50 pg/L
6/6/2013
Bromodichloromethane
EPA 624
18.4 pg/L
6/6/2013
Bromoform
EPA 624
31.4 pg/L
6/612013
Bromomethane
EPA 624
< 0.50I1g/L
6/6/2013
Carbon tetrachloride
EPA 624
< 0.5011g/L
6/6/2013
Chlorobenzene
EPA 624
< 0.50 Ng/L
6/6/2013
Chloroethane
EPA 624
< 0.50 pg/L
6/6/2013
Chloroform
EPA 624
6.01I1g/L
6/6/2013
Chloromethane
EPA 624
< 0.50 pg/L
6/6/2013
cis-1,3-Dichloropropene
EPA 624
< 0.50.pg/L
6/6/2013
Dibromochloromethane
EPA 524
47.5 pg/L
6/6/2013
Ethylbenzene
EPA 624
< 0.50 Ng/L
6/6/2013
IPE
EPA 624
< 0.50 pg/L
616/2013
M+P Xylene
EPA 624
< 1.00 lig/L
6/6/2013
Methylene chloride
EPA 624
< 0.50 pg/L
6/6/2013
MTBE
EPA 624
< 0,50 pg/L
6/6/2013
Naphthalene
EPA 624
< 0.50 Pg/L
6/6/2013
ortho-Xylene
EPA 624
< 0.50 pg1L
6/6/2013
Tetrachloroethene
EPA 624
< 0.50 pg/L
6/6/2013
Toluene-
EPA624
< 0.6011g1L
6/6/2013
Trans-1,2-Dichloroethene
EPA 524
< 0.50 pg/L
6/6/2013
trans-1,3-Dichloropropene
EPA 524
<0.50pg/L
6/6/2013
Trichloroethene
EPA 624
< 0.50 pg/L
6/6/2013
Trichlorofluoromethane
EPA 624
< 0.50 pg/L
616/2013
Report #:: 2013-06231 Page 2 of 5

'
®
ANALYTICAL & CONSULTING
CHEMISTS
Environmental Chemists,
6602 Windmill Way - Wilmington, NC 28405
[phone] (Lab) - [phone] (Fax)
710 Bowsertown Road - Manteo, NC 27954
[phone]
NCDENR: DWQ CERTIFICATE #94. DIS CERTIFICATE #37729
Inc.
Town of Manteo
Date of Report: Jun 24, 2013
Post Office Box 246
Customer PO #:
Manteo NC 27954
Report #: 2013-06231
Attention: Shannon Twiddy
Report to: Shannon Twiddy
Project ID: Pollutant Scan
Vinyl chloride
EPA 624
< 0.50 pg/L
6/6/2013
2,4,6 -Trichlorophenol
EPA 625
<5 pg/L
06/10/2013
2,4-Dichlorophenol
EPA 625
<5 pg/L
06/10/2013
2,4 -Dimethylphenol
EPA 625
<5pg/L
06/10/2013
2,4-Dinitrophenol
EPA e25
<25 pg/L
06/10/2013
2 -Chlorophenol
EPA 625
<5 pg/L
06/10/2013
2-Methyl-4,6-dinitrophenol
EPA 525
<25 ug/L
06/10/2013
2-Nitrophenol
EPA 625
<26 pg1L
06/10/2013
4-Chloro-3-methylphenol
EPA 625
<5 pg/L
06/10/2013
4-Nitrophenol
EPA625
<25Ng/L
06/10/2013
Pentachlorophenol
EPA 625
<25 lig/l.
06/10/2013
Phenol
EPA 625
<5 Ng/L
06110/2013
1,2 Diphenylhydrazine
EPA 625
<5 Ng/L
06/10/2013
1,2,4-Tdchlorobenzene
EPA 625
<5 pg/L
06/10/2013
1,2 -Dichlorobenzene
EPA 625
<5 pg/L
06/10/2013
1,3 -Dichlorobenzene
EPA 625
<5pg/L
06/10/2013
1,4 -Dichlorobenzene
EPA 625
<5pg/L
06110=13
1-Methyinaphthalene
EPA 625
<5Ng/L
06/10/2013
2,4-Dinifrotoluene
EPA 625
<5 pg/L
06/10/2013
2,6-Dinitrotoluene
EPA 625
<5 pg/L
06/10/2013
2-Chloronaphthalene
EPA 625
<5 pg/L
06/10/2013
2 -Methylnaphthalene
EPA 625
<5 pg/L
06/10/2013
3,3'-Dichlorobenzidine
EPA 625
<10 pg/L
06/10/2013
4-Bromophenyl phenyl ether
EPA 625
<5 pg/L
06/10/2013
4-Chlorophenyl phenyl ether
EPA 625
<5 Ng/L
06/10/2013
Acenaphthene
EPA 625
<5 Ng/L
06/10/2013
Acenaphthylene
EPA 625
<5 Ng/L
06/10/2013
Anthracene
EPA 625
<5 pg/L
06/10/2013
Benzidine
EPA 625
<10 pg/L
06/10/2013
Report #:: 2013-06231` — - - - -
- _
-- — - -- — — •- -- - — - --
Page 3 M 5 - —

' -
Environmental Chemists,
Inc.
6602 Windmill Way - Wilmington, NC 28405
[phone] (Lab) • [phone] (Fax)
710 Bowsertown Road - Manteo, NC 27954
ANALYTICAL & CONSULTING
[phone]
CHEMISTS
NCDENR: DWQ CERTIFICATE #94. DLS CERTIFICATE #37729
Town of Manteo
Date of Report: Jun 24, 2013
Post Office Box 246
Customer PO #•
-
Manteo NC 27954
Report #: 2013-06231
Attention: Shannon Twiddy
Report to: Shannon Twiddy
Project ID: Pollutant Scan
Benzo [a)pyrene
EPA 625
<5 pg/L
06/10/2013
Benzo(a)anthracene
EPA 626
<5 pg/L
06/10/2013
Benzo(b)fluoranthene
EPA 625
<5 pg/L
06/10/2013
Benzo(g,hJ)perylene
EPA 625
<5 pg/L
06/10/2013
Benzo(k)fluoranthene
EPA 626
<5
06/10/2013
Bis ( chloromethyl ) ether
EPA 625
<5 pg/L
06/10/2013
Bis(2-Chloroethoxy)methane
EPA 625
<5 pg/L
06/10/2013
Bis(2-Chloroethyl)ether
SPA 626
<5 pg/L
06/10/2013
Bis(2-Chloroisopropyl)ether
EPA 625
<5 pg/L
06/10/2013
Bis(2-ethylhexyl)phthalate
EPA625
<5 pg/L
06110/2013
Butylbenzylphthalate
EPA625
<5 pg/L
06/10/2013
Chrysene
EPA 625
<5 pg/L
06/10/2013
Dibenzo(a,h)anthracene
EPA 626
<5 pg/L
06/10/2013
Diethylphthalate
EPA 625
<5 pg/L
06/10/2013
Dimethylphthelate
EPA 6n
<5 pg/L
06/10/2013
Di-n-Butylphthalate
EPA 625
<5 pg/L
06/10/2013
Di-n-Octylphthalate
EPA 625
<5 pg/L
06/10/2013
Fluoranthene
EPA 625
<5 pg/L
06/10/2013
Fluorene
EPA 625
<5 pg/L
06/10/2013
Hexachlorobenzene
EPA 626
<5 pg/L
06/10/2013
Hexachlorobutadiene
EPA 625
<5 pg/L
06/1012013
Hexachlorocyclopentadiene
EPA 625
<25 pg/L
06110/2013
Hexachloroethane
EPA 625
<5 pg/L
06/10/2013
lndeno(1,2,3-cd)pyrene
EPA 626
<5 pg/L
06/10/2013
lsophorone
EPA 625
<5 pg/L
06/10/2013
Naphthalene
EPA 625
<5 pg/L
06/10/2013
Nitrobenzene
EPA 625
<5 pg/L
06/10/2013
N-nitroso-dimethylamine(NDMA)
EPA 625
<5 pg/L
06110/2/ 013
N-Nitroso-di-n-propylamine
EPA 625
<5 pg/L
06/1012013
Report#:: 2013-06231
Page 4 of 5

ANALYTICAL & CONSULTING
CHEMISTS
Town of Manteo
Post Office Box 246
Manteo NC 27954
Attention: Shannon Twiddy
N -Nitroso -dip henylamine
Phenanthrene
Pyrene
Total Hardness
Total Dissolved Solids (TDS)
Total Phosphorus
Nitrate Nitrogen (Calc)
Nitrite Nitrogen
Nitrate+Nitrite-Nitrogen
Nitrate Nitrogen
Comment:
Environmental Chemists, Inc.
6602 Wm&rO Way • Wilmington, NC 28405
(910) 392 -OM (Lab) • [phone] (Fax)
710 Bowsertown Road • Manteo, NC 27954
[phone]
NCDENR: DWQ CERTIFICATE #94. DLS CERTIFICATE #137729
EPA 625
EPA 625
EPA 625
SM 2340 C
SM 2540 C
SM 4500 P F
EPA 353.2
EPA 353.2
Subtraction Method
Date of Report: Jun 24, 2013
Customer PO #:
Report #: 2013-06231
Report to: Shannon Twiddy
Project lb: Pollutant Scan
<5 pg/L
<5 pg/L
<5 Ng/L
167 mg/L
981 mg/L
3.49 mg/L
< 0.02 mg/L
6.75 mg/L
6.75 mg1L
06/10/2013
06/10/2013
06/10/2013
06/06/2013
06/06/2013
06/06/2013
06/05/2013
06/06/2013
06/07/2013
4
Reviewed by: ! A 0 X�.^
Report #:: 2013-06231 Page 5 of 5 -

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1[en7vhrochem
ANALYTICAL & CONSULTING
CHEMISTS
Environxnentc-d Chemists, Inc.
6602 Windmill Way a Wilmington, NC 28405
[phone] (Lab) o [phone] (Fax)
710 Bowsertown Road • Manteo, NC 27954
[phone]
NCDENR: DWQ CERTIFICATE #94. DLS CERTIFICATE #37729
Town of Manteo
Date of Report:
Dec 29, 2014
Post Office Box 246
Customer PO #:
EPA 200.7
Manteo NC 27954
Customer ID:
08110017
Attention: Shannon Tvriddy
Report #:
2014-14997
Chromium
Project ID: Pollutant Scan
Lab ID Sample ID: Pollutant Scan
Collect Date/Time Matrix
Sampled by
14-36737 Site: Effluent
12/3/2014 11:25 AM Water
Josh O'Brien
Test Method Results Date Analyzed
Oil & Grease (O&G)
EPA 1654
<5 mg/L
12/08/2014
Arsenic
EPA 200.7
<0.010 mg1L
12/05/2014
Cadmium
EPA 200.7
<0.010mg/L
12/05/2014
Chromium
EPA 200.7
<0.010 mg/L
12/05/2014
Copper
EPA 200.7
<0.010 mg/L
12/05/2014
Lead
EPA 200.7
<0.010 mg/L
12/05/2014
Nickel
EPA 2DD.7
<0.010 mg1L
12/05/2014
Selenium
EPA 200.7
<0.010 mq/L
12/05/2014
Silver
EPA 200.7
<0.010 mg/L
12/05/2014
Zinc
EPA 200.7
0.039 mg/L
12/05/2014
Antimony
EPA20D.8
< 0.001 mg/L
12/8/2014
Beryllium
EPA 200.8
<0.010mg/L
12/10/2014
Thallium
EPA 200.8
< 0.001 mg/L
12/8/2014
Mercury
EPA 245.1
<0.0002mg/L
12/17/2014
Cyanide
EPA 335.4
< 0.005 mg/L
12/05/2014
Ammonia Nitrogen
EPA 350.1
< 0.2 mg/L
12/09/2014
Total Kjeldahl Nitrogen (TKN)
EPA 351.2
0.6 mg/L
12/11/2014
Inorganic Phenols
EPA 420.1
0.014mg/L
12/15/2014
1,1,1 -Trichloroethane
EPA 824
<0.5 pg/L
12/11/2014
1,1,2,2 -Tetrachloroethane
EPA 624
<0.5 pg/L
12/11/2014
1,1,2 -Trichloroethane
EPA 624
<0.5pq/L
12/11/2014
1, 1 -Dichloroethane
EPA 624
<0.5 IIq/L
12/11/2014
1,1-Dichloroethene
EPA 624
<0.5pg/L
12/11/2014
1,2 -Dichlorobenzene
EPA 624
<0.5pg/L
12/11/2014
1,2-Dichloroethane
EPA 624
<0.5lig/L
12/11/2014
1,2-Dichloropropane
EPA 624
<0.5pg/L
12111/2014
Report #:: 2014-14997 Page 1 of 5

Environmental Chemists, Inc.
envirochem 6602 Windmill Way • Wilmington, NC 28405
[phone] (Lab) • [phone] (Fax)
710 Bowsertown Road • Manteo, VC 27954
ANALYTICAL S CONSULTING [phone]
CHEMISTS NCDENR: DWQ CERTTFICATE #94. DLS CERTIFICATE #37729
Town of Manteo
Date of Report: Dec 29, 2014
Post Office Box 246
Customer PO #:
Manteo NC 27954
Customer ID: 08110017
Attention: Shannon Twiddy
Report #: 2014-14997
Project ID: Pollutant Scan
1,3 -Dichlorobenzene
EPA 624
<0.5ug/L
12/11/2014
1,4 -Dichlorobenzene
EPA 624
<0.5pg/L
12/11/2014
2-Chloroethylvinylether
EPA 624
<0.5pg/L
12/11/2014
Acrolein
EPA 624
<5 pg/L
12/11/2014
Acrylonitrile
EPA 624
<5 pg/L
12/11/2014
Benzene
EPA 824
<0.5 pg/L
12/11/2014
Bromodichloromethane
EPA 824
<0.5 tig/L
1211112014
Bromoform
EPA 624
6.15 pg/L
12/11/2014
Bromomethane
EPA 524
<0.5pg/L
12/11/2014
Carbon tetrachloride
EPA 624
<0.5pp/L
12/11/2014
Chlorobenzene
EPA 624
<0.5 uq/L
12/11/2014
Chloroethane
EPA 624
<0.5 uq/L
12111/2014
Chloroform
EPA 524
8.43 ug/L
12/11/2014
Chloromethane
EPA 624
<0.5 pg/L
12/11/2014
cis-1,3-Dichloropropene
EPA 624
<0.5ug/L
12/11/2014
Dibromochloromethane
EPA 624
23.6 pg/L
12/11/2014
Ethylbenzene
EPA 624
<0.5pg/L
12/11/2014
IPE
EPA 624
<0.5pg/L
12/11/2014
M+P Xylene
EPA 624
<1.0 ug/L
12/11/2014
Methylene chloride
EPA 624
<0.5pg/L
12/11/2014
MTBE
EPA 624
<0.5 pg/L
12/11/2014
Naphthalene
EPA 624
<0.5 pg/L
12/11/2014
ortho-Xylene
EPA 624
<0.5 pg/L
12/11/2014
Tetrachloroethene
EPA 624
<0.5 pg/L
12/11/2014
Toluene
EPA 624
<0.5uq/L
12/11/2014
Trans -1 ,2-Dichloroethene
EPA 624
<0.5 pg/L
12/1112014
trans- 1,3-Dichloropropene
EPA 624
<0.5pg/L
12/11/2014
Trichloroethene
EPA 624
<0.5pg/L
12/11/2014
Trichlorofluoromethane
EPA 624
<0.5 pg/L
12/11/2014
Vinyl chloride
EPA 624
<0.5pg/L
12/11/2014
Report #:: 2014.14997 Page 2 of 5

Environmental Chemists, Inc.
envirochem 6602 Windmill Way • Wilmington, NC 28405
[phone] (Lab) • [phone] (Fax)
M 710 Bowsertown Road . Manteo, NC 27954
[phone]
ANALYTICAL & CONSULTING
CHEMISTS NCDENR: DWQ CERTIFICATE #94. DLS CERTIFICATE #37729
Town of Manteo
Date of Report: Dec 29, 2014
Post Office Box 246
Customer PO IN:
Manteo NC 27954
Customer ID: 08110017
Attention: Shannon Twiddy
Report #: 2014-14997
Project ID: Pollutant Scan
2,4,6 -Trichlorophenol
EPA625
<5 pg/L
12/10/2014
2,4-Dichlorophenol
EPA625
<5 pg/L-
12/10/2014
2,4 -Dimethylphenol
EPA625
<5 pg/L
12/10/2014
2,4-Dinitrophenol
EPA625
<25 pg/L
12/10/2014
2 -Chlorophenol
EPA 625
<5 pg/L
12/10/2014
2-Methyl-4,6-dinitrophenol
EPA625
<25pg/L
12/10/2014
2-Nitrophenol
EPA625
<25 pg/L
12/10/2014
4 -Chloro -3-m ethyl phenol
EPA625
<5 pg/L
12/10/2014
4-Nitrophenol
EPA625
<25 pg/L
12/10/2014
Pentachlorophenol
EPA625
<26pg/L
12/10/2014
Phenol
EPA625
<5 pg/L
12/10/2014
1,2 Diphenylhydrazine
EPA625
<5 pq/L
12/10/2014
1,2,4-Trichlorobenzene
EPA625
<5pg/L
12/10/2014
1,2 -Dichlorobenzene
EPA625
<5 pg/L
12/10/2014
1,3 -Dichlorobenzene
EPA625
<5pg/L
12/10/2014
1,4 -Dichlorobenzene
EPA625
<5pg/L
12/10/2014
1 -Methylnaphthalene
EPA625
<5 pg/L
12/10/2014
2,4-Dinitrotoluene
EPA625
<5 pg/L
12/10/2014
2,6-Dinitrotoluene
EPA625
<5 pq/L
12/10/2014
2-Chloronaphthalene
EPA625
<5 pg/L
12/10/2014
2 -Methylnaphthalene
EPA625
<5 pg/L
12/10/2014
3,3'-Dichlorobenzidine
EPA625
<10 pg/L
12/10/2014
4-Bromophenyl phenyl ether.
EPA625
<5pg/L
12/10/2014
4-Chlorophenyl phenyl ether
EPA625
<5pg/L
12/10/2014
Acenaphthene
EPA625
<5pg/L
12/10/2014
Acenaphthylene
EPA 625
<5 pg/L
12/1012014
Anthracene
EPA625
<5 pg/L
12/10/2014
Benzidine
EPA 625
<10 pg/L
12/10/2014
Benzo [ajpyrene
EPA 625
<5 pg/L
12/10/2014
Benzo(a)anthracene
EPA625
<5pg/L
12/10/2014
Report #:: 2014-14997
Page 3 of 6

Environmental Chemists, Inc.
! 6602 Windmill Way • Wilmington, NC 28405
[phone] (Lab) • [phone] (Fax)
710 Bowsertown Road • Manteo, NC 27954
ANALYTICAL & CONSULTING [phone]
CHEMISTS NCDENR: DWQ CERTIFICATE #94. DLS CERTIFICATE #37729
Town of Manteo
Post Office Box 246
Manteo NC 27954
Attention: Shannon Twiddy
Date of Report: Dec 29, 2014
Customer PO #:
Customer ID: 08110017
Report #: 2014-14997
Project ID: Pollutant Scan
Benzo(b)fluoranthene
EPA 625
<5 pg/L
12/10/2014
Benzo(g,h,i)perylene
EPA 625
<5pg/L
1211012014
Benzo(k)fluoranthene
EPA 625
<5 pg/L
12/10/2014
Bis ( chloromethyl ) ether
EPA 625
<5 ug/L
12/10/2014
Bis(2-Chloroethoxy)methane
EPA 625
<5 pg1L
12/10/2014
Bis(2-Chloroethyl)ether
EPA 625
<5 pg1L
12/10/2014
Bis(2-Chloroisopropyl)ether
EPA 625
<5pg/L
12/10/2014
Bis(2-ethylhexyl)phthalate
EPA 625
<5pg/L
12/10/2014
Butylbenzylphthalate
EPA 625
<5 u9/L
12/10/2014
Chrysene
EPA 625
<5 ug/L
12/10/2014
Dibenzo(a,h)anthracene
EPA 625
<5 pq/L
12/10/2014
Diethylphthalate
EPA 625
<5 pq/L
12/10/2014
Dimethylphthalate
EPA 625
7.15 pg/L
12/10/2014
Di-n-Butylphthalate
EPA625
<5 pg/L
12/10/2014
Di-n-Octylphthalate
EPA 625
<5 pg/L
12/10/2014
Fluoranthene
EPA 625
<5 tig/L
12/10/2014
Fluorene
EPA 625
<5 pg/L
12/10/2014
Hexachlorobenzene
EPA 625
<5 pq/L
12/10/2014
Hexachlorobutadiene
EPA 625
<5 pg/L
12110/2014
Hexachlorocyclopentadiene
EPA 625
<25pg/L
12/10/2014
Hexachloroethane
EPA 625
<5pg/L
12/10/2014
Indeno(1,2,3-cd)pyrene
EPA 625
<5pg/L
12110/2014
Isophorone
EPA 625
<5 pg/L
12/10/2014
Naphthalene
EPA 625
<5 pg/L
12/10/2014
Nitrobenzene
EPA 625
<5 uq/L
12/10/2014
N-nitroso-dimethylamine(NDMA)
EPA 626
<5pg/L
12/10/2014
N-Nitroso-di-n-propylamine
EPA 625
<5pg/L
12/10/2014
N-Nitroso-diphenylamine
EPA 625
<5 pg/L
12/10/2014
Phenanthrene
EPA 625
<5 pg/L
12/10/2014
Pyrene
EPA 625
<5 pg/L
12/1012014
Report A: 2014-14997
Page 4 of 5

Adonlikkk I Environmental Chemists, Inc.
enviwociiem 6602 Windmill Way • Wilmington, NC 28405
L 41 [phone] (Lab) - [phone] (Fax)
710 Bowsertown Road o Manteo, NC 27954
ANALYTICAL & CONSULTING [phone]
CHEMISTS NCDENR: DWQ CERTIFICATE #94. DL9 CERTIFICATE #37729
Town of Manteo
Post Office Box 246
Manteo NC 27954
Attention: Shannon Twiddy
Total Hardness
Total Dissolved Solids (TDS)
Total Phosphorus
Nitrate Nitrogen (Calc)
Nitrite Nitrogen
Nitrate+Nitrite-Nitrogen
Nitrate Nitrogen
Comment:
Reviewed by:
Date of Report: Dec 29, 2014
Customer PO 0:
Customer ID: 08110017
Report #: 2014-14997
Project ID: Pollutant Scan
SM 2340 c 148 mg/L 12/09/2014
SM 2540 C 771 mg/L 12/05/2014
SM 4500 P F 1.34 mg/L 12/11/2014
EPA 353.2 < 0.02 mg/L
EPA 353.2 10.1 mg/L
Subtraction Method 10.1 mg/L
12/05/2014
12/15/2014
12/16/2014
Report #:_ 2014-14997 Page 5 of 5 R

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7en ro'e-hem
ANALYTICAL & CONSUI.TING CHEMISTS
Town of Manteo
Post Office Sox 246
Manteo NC 27954
Attention: Shannon Twiddy
Lab ID Sample iD:
17-14795 Site: Effluent
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab . 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.473.3702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
[e-mail]
Date..of Report: May 17, 2017
Customer PO #:
Customer ID: 08110017
Report #: 2017-06261
Project ID: Pollutant Scan
Collect Date/Time Matrix Sampled by
5/3/2017 11:00 AM Water Josh O'Brien
Test
Method v
Results
Date Analyzed
Oil & Grease (O&G)
EPA 1884
<5 mg/L
05/09/2017
Antimony
EPA 200.7
<0.01 mg/L
05/08/2017
Arsenic
EPA 200.7
<0.01 mg/L
05/08/2017
Beryllium
EPA 200.7
<0.01 mg/L
05/08/2017
Cadmium
EPA 200.7
<0.01 mg/L
05/08/2017
Chromium
EPA 200.7
<0.01 mg/L
05/08/2017
Copper
EPA 200.7
<0.01 mg/L
05/08/2017
Lead
EPA 2001
<0.01 mg/L
05108/2017
Nickel
EPA 2001
<0.01 mg/L
05/08/2017
Selenium
EPA 200.7
<0.01 mg/L
05/08/2017
Silver
EPA 200.7
<0.01 mg/L
0510&2017
Thallium
EPA 200.7
<0.01 mg/L
05/08/2017
Zinc
EPA200,7
0.035 mg/L
05/08/2017
Mercury
FPA 248,1
<0.0002 mg/L
0 5/0 512 0 1 7
Cyanide
EPA 938.4
< 0.005 mg/L
05/08/2017
Ammonia Nitrogen
EPA 850.1
< 0.2 mg/L
05/05/2017
Total Kjeldahl Nitrogen (TKN)
EPA 351.2
0,8 mg/L
05/11/2017
Inorganic Phenols
EPA 420.1
0.005 mg/L
05/11/2017
1,1,1 -Trichloroethane
EPA 624
<0.5pg/L
05/05/2017
1,1,2,2 -Tetrachloroethane
EPA 624
<0.5 pg/L
05/05/2017
1,1,2 -Trichloroethane
EPA 824
<0.5pg/L
05/05/2017
1,1-Dichloroethane
EPA 624
<0.5 Ng/L
05/05/2017
1,1-Dichloroethene
EPA 624
<0.5pg/L
05105/2017
1,2 -Dichlorobenzene
EPA 624
<0,5Vg/L
05/0512017
1,2-Dichloroethane
EPA 824
<0.5 pg/L
05/05/2017
1,2-Dichloropropane
EPA624
<0.5pg/L
05/05/2017
Repot*. 2017-082e1
Page 1015

Environmental Chemists, Inc,
• 6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.473.102 Lab/Pax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
ANALYTICAL & CONSULTING CHEMISTS [e-mail]
Token of _Nlanteo
Post Office Box 246
Mantso NC 27954
Attention: Shannon Twiddy
Date of Report: May 17, 2017
Customer PO #:
Customer ID: 08110017
Report #: 2017-06261
Project ID: Pollutant Scan
1,3 -Dichlorobenzene
EPA 624
<0.5 pg/L
05/05/2017
1,4 -Dichlorobenzene
EPA 624
<0.5 pg/L
05/05/2017
Acrolein
EPA 824
<5 pg/L
05105/2017
Acrylonitrile
EPA024
<5 pg/L
05/05/2017
Benzene
EPA624
<0.5 pg/L
05/05/2017
Bromodichloromethane
EPA 624
22.8 pg/L
0510512017
Bromoform
EPA624
36.5 pg/L
05105/2017
Bromomethane
EPA 824
<0.5 pg/L
05/05/2017
Carbon tetrachloride
EPA 624
<0.5 pgIL
05/05/2017
Chlorobenzene
EPA 824
<0.5Wg/L
05/05/2017
Chloroethane
EPA 824
<0.5 pg/L
05/05/2017
Chloroform
EPA 824
6.80 pg/L
05/05/2017
Chloromethane
EPA 624
<0.5 pg/L
05/05/2017
cis-1,3-Dichloropropene
EPA 624
<0.5 pg&
05/05/2017
Dibromochloromethane
EPAGM
62.4 pg/L
05/05/2017
Ethyibenzene
EPA 624
<0.5 pg/L
05/05/2017
IPE
EPA 624
<0.5pg/L
05/05/2017
M+P Xylene
EPA 824
<1.0 pg/L
0 510512 0 1 7
Methylene chloride
EPA824
<0.5 pg/L
05105/2017
MTBE
EPA 624
<0.5 pg/L
05/05/2017
Naphthalene
EPA 624
<0.5 Wg1L
05/05/2017
adho-Xylene
EPA 824
<0.5 llg1L
05/05/2017
Tetrachloroethene
EPA 624
<0.5 pg/L
05/05/2017
Toluene
EPA 824
<0.5 ug1L
05/05/2017
Trans-1,2-Dichloroethene
EPA 624
<0.5 pg/L
05/05/2017
trans-1,3-Dichloropropene
EPA 04
<0.5Ng/L
05/06/2017
Trichloroethene
EPA 624
<D.5 pg/L
05/05/2017
Trichlorofluoromethane
EPA 824
<0.5 pg/L
05/05/2017
Vinyl chloride
EPA 824
<0.5 lig/L
05/05/2017
2,4,6 -Trichlorophenol
EPA 625
<5lig/L
DS/09/2017
RepW1At: 217.08281 '_� !_..�•Y-�.�
� �
Page 2of5

envirochem
ANALYTICAL & CONSULTING CHEMISTS
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 • 910.392-0223 Lab • 910.392.4424 Fax
710 BowserGown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
[e-mail]
Town of.Manteo
Date of Report: May.17, 2017
Post Office Box 246
Customer PO #:
Manteo NC 27954
Customer ID: 08110017
Attention: Shannon Twiddy
Report #: 2017-06261
Project ID: Pollutant Scan
2,4-Dichlorophenol
EPA 625
<5 lag/L
2,4 -Dimethylphenol
EPA 825
<5 Ng/L
2,4-Dinitrophenol
EPA 625
<25 pg/L
2 -Chlorophenol
EPA 826
<5 pg/L
2-Methyl-4,6-dinitrophenol
EPA 825
<25 pg/L
2-Nttrophenof
EPA 825
<25 pg/L
4-Chloro-3-methylphenol
EPA825
<5 pg/L
4-Nitrophenol
EPA 625
<25 lJg/L
Pentachlorophenol
EPA626
<25 pg/L
Phenol
EPA626
<5 pg/L
1,2 Diphenylhydrazine
EPA 825
<5 pg/L
1,2,4-Tdchlorobenzene
EPA 625
<5 pg/L
1, 2 -Dichlorobenzene
EPA 825
<5 lag/L
0 -Dichlorobenzene
EPAe25
<5 pg/L
1,4 -Dichlorobenzene
EPA 825
<5 pg/L
1-Methyinaphthalene
EPA626
<5 pg/L
2,4-Dinitrotoluene
EPA626
<5 pg/L
2,6-Dinitrotoluene
EPA 825
<5 lag/L
2-Chloronaphthalene
EPA 625
<5 pg/L
2-Methyinaphthalene
EPA 625
<5 pg/L
3,3'-Dichlorobenzidine
EPA 625
<10 pg/L
4-Brornophenyl phenyl ether
EPA 625
<5 pg/L
4-Chlorophenyl phenyl ether
EPA 625
<5 pg/L
Acenaphthene
EPA 625
<5 pg/L
Acenaphthylene
EPA 625
<5 pg/L
Anthracene
EPA 625
<5 ug/L
Benzidine
EPA 625
<10 pg/L
Benzo [a]pyrene
EPA 825
<5 pg/L
Benzo(a)anthracene
EPA U6
<5 pg/L
Benzo(b)fiuoranthene
EPA 626
<5 lag/L
Report 6:: 2p17-06281
05/09/2017
05/09/2017
05/0912017
05/09/2017
05/09/2017
05/09/2017
05/09/2017
05/09/2017
05/09/2017
0510912017
05/09/2017
05/09/2017
05/09/2017
05/09/2017
05/09/2017
05/09/2017
05/09/2017
05/09/2017
05/09/2017
05/09/2017
05/09/2017
05/09/2017
05109/2017
05/09/2017
05/09/2017
05109/2017
05/09/2017
05/09/2017
05109/2017
05/09/2017
Pape 8 of 5

envirochem.---
k:--
ANALYTICAL & CONSULTING CHEMISTS
E nvironmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.3475843 Lab/Pax
info®environmentalchemists.com
Town of Manteo
Date of Report: May 17, 2017
Post Offioe Box 246
Customer PO #:
Manteo NC 27954
Customer ID: 08110017
Attention: Shannon Twiddy
Report #: 2017-06261
Project ID: Pollutant Scan
Benzo(g,h,i)perylene
EPA826
<5 pg/L
05/0912017
Benzo(k)8uoranthene
EPA 625
<5 pg/L
05/09/2017
Bis ( chloromethyl ) ether
EPA 625
<5 pg/L
05/09/2017
Bis(2-Chloroethoxy)methane
EPA025
<5 pg/L
05/09/2017
Bis(2-Chlomethyi)ether
EPA625
<5 pg/L
05/09/2017
016(2-Chloroisopropyl)ether
EPA 625
<5 pg/L
05/0912017
Bis(2-ethylhexyl)phthalate
EPA 626
17.2 pg/L
05/09/2017
Butylbenzylphthalate
EPA 625
<5 pg/L
05/09/2017
Chrysene
EPA 625
<5pgll,
05/09/2017
Dibenzo(a,h)anthracene
EPA 825
<5pg/L
05/09/2017
Diethylphthalate
EPA 625
<5 pg/L
05/09/2017
Dimethylphthalate
EPA 825
<5 pg/L
05/09/2017
Di-n-Butylphthaiate
EPA 625
<5pg/L
05/09/2017
DI-n-Octylphtha/ate
EPA 025
<5 pg/L
05/09/2017
Fluoranthene
EPA 625
<5 pg/L
05/09/2017
Fluorene
EPA825
<5 pg/L
05/09/2017
Hexachlombenzene
EPA625
<5 pg/L
05/09/2017
Hexachlorobutadlene
EPA 825
<5 pg/L
05/09/2017
Hexachlorocyclopentadiene
EPA625
<25 pg/L
05/09/2017
Hexachloroethane
EPA 625
<5 pg/L
05/09/2017
lndeno(1,2,3-cd)pyrene
EPA 625
<5 pg/L
05/09/2017
isophorone
EPA825
<5 ug/L
05/09/2017
Naphthalene
EPA 625
<5 pg/L
05/09/2017
Nitrobenzene
EPA84
<5 pg/L
05/09/2017
N-nitroso-dimethylamine(NDMA)
EPA 625
<5 pg/L
05/09/2017
N-Nitroso-di-n-propylamine
EPA 825
<5 pg/L
05/09/2017
N-Nitroso-diphenylamine
EPA825
<5 pg/L
05/09/2017
Phenanthrene
EPA626
<5 pg/L
05/09/2017
Pyrene
EPAM
<5pg/L
05/09/2017
Total Hardness
--
SM 2348 c
239 mg1L
05/0412017
Report aK:: 2017-08281 TM - ~.
-
Pape 4 of 6

77
Environmental Chemists,
Inc.
4
envirochem
6602 Windmill Way, Wilmington, NC 28405 ` 910 392.0223 Lab • 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
ANALYTICAL & CONSULTING CHEMISTS
[e-mail]
Town of Manteo
Date of Report: May 17,. 2017
Post Offlce Box 246
Customer PO #:
Manteo NC 27954
Customer ID: 08110017
Attention: Shannon Twiddy
Report #: 2017-06261
Project ID: Pollutant Scan
Total Dissolved Sofids (TDS)
SM 2540 c 1180 mg1L
05/04/2017
Total Phosphorus
SM 4500 P F 5.20 mg1L
05/12/2017
Nitrate Nitrogen (Calc)
Nitrite Nitrogen
EPA 353.2 c 0.02 mg/L
0510512017
Nitrate+Nitrite-Nitrogen
EPA 383.2 8.63 mg/L
05/10/2017
Nitrate Nitrogen
Sulmadw WNW 8.63 mg/L
05/15/2017
Comment:
iU�Qg)
Reviewed by:
Report #:: 2017.08281' �r Pape 5 of 5

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Reportk 2D18-13053 Papa 1 of 6
Environmental Chemists,
Inc.
,,,enviroche 4
6602 Windmill Way, Wilmington, NC 28405 - 910.392.0223 Lab - 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 - 2524735702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 - 910.347.5843 Lab/Fax
ANALYTICAL A CONSULTING CHEMISTS
[e-mail]
Town of Manteo
Date of Report: Sep 26, 2018
Post Once Box 246
Customer PO #:
Manteo NC 27954
Customer 10: 08110017
Attention: Shannon Twiddy
Report #: 2018-13053
Project ID: Pollutant Scan
Lab ID Sample ID: Manteo
Collect Datelrime Matrix Sampled by
18-32804 Site: Effluent
8/8/2018 10:30 AM Water Josh O'Brien
Test
Method Results Date Analyzed
Oil & Grease (O&G)
EPA 1884
<5 mg/L
08/13/2018
Arsenic
EPA 200.7
<0.01 mgIL
08/13/2018
Beryllium
EPA 200.7
<0.01 mgIL
08/13/2018
Cadmium
EPA 2003
<0.01 mgIL
08/13/2018
Chromium
EPA 200.7
<0.01 mg/L
08/13/2018
Copper
EPA 200.7
0.013 mg1L
08/1312018
Lead
EPA 200•7
<0.01 mgIL
08/13/2018
Nickel
EPA 200.7
<0.01 mg/L
08/13/2018
Selenium
EPA200.7
<0.01 mg/L
08/13/2018
Silver
EPA2oo.7
<0.01 mgIL
08/13/2018
Thallium
EPA 200.7
<0.01 mg/L
08/13/2018
Zinc
EPA 200.7
0.059 mg/L
08/13/2018
Antimony
EPA200.8
<0.010 mg1L
08/15/2018
Mercury
EPA245.1
<0.0002 mg/L
08/13/2018
Cyanide
EPA 335A
< 0,005 mg/L
08/17/2018
Ammonia Nitrogen
EPA 350.1
< 0.2 mg/L
08/23/2018
Total Kjeldahl Nitrogen (TKN)
EPA 351.2
0.9 mgIL
08/21/2018
Inorganic Phenols
EPA 420.1
0.005 mgIL
08/23/2018
1,1,1 -Trichloroethane
EPA 524
<0.5 pg/L
08/10/2018
1,1,2,2 -Tetrachloroethane
EPA 824
<0.5tig/L
08/10/2018
1,1,2 -Trichloroethane
EPA 824
<0.5pg/L
08110/2018
1, 1 -Dichloroethane
EPA 524
<0.5 tig/L
08/10/2018
1, 1 -Dichloroethene
EPA 824
<0.5pg/L
08/10/2018
1,2 -Dichlorobenzene
EPA 624
<0.5Ng/L
08/10/2018
1,2-Dichioroethane
EPA 624
<0.5pg/L
08/10/2018
1,2-Dichloropropane
EPA 824
<0.5 pg/L
08/10/2018
Reportk 2D18-13053 Papa 1 of 6

ANALYTICAL & CONSULTING CHEMISTS
Environmental Chemists, Inc.
"M Windmill Way, Wilmington, NC 28405 - 910.392.0223 Lab - 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 - 252.473.5702 Lab/Pax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
[e-mail]
Town of Manteo
Date of Report: Sep 26, 2016
Post Office Box 246
Customer PO #:
Manteo NC 27954
Customer ID: 08110017
Attention: Shannon Twiddy
Report #• 2018-13053
Project ID: Pollutant Scan
1,3 -Dichlorobenzene
EPA 624
<0.5pg/L
08/10/2018
1,4 -Dichlorobenzene
EPA 624
<0.5 pg/L
08/10/2018
Acrolein
EPA 624
<5 pg/L
08/10/2018
Acrylonitrile
EPA 624
<5 pg/L
08/10/2018
Benzene
EPA 624
<0.5 pg/L
08/10/2018
Bromodichloromethane
EPA624
13.4 pg/L
08/10/2018
Bromoform
EPA 624
1.00 pg/L
08/10/2018
Bromomethane
EPA 024
<0.5 pg/L
08/10/2018
Carbon tetrachloride
EPA 624
<0.6 pg/L
08/10/2018
Chlorobenzene
EPA 824
<0.5 pg/L
08/10/2018
Chloroethane
EPA 624
<0.5 pg/L
08/10/2018
Chloroform
EPA 624
18.6 pg/L
08/10/2018
Chloromethane
EPA 824
<0.5 pg/L
08/10/2018
cis-1,3-Dichlompropene
EPA 624
<0.5 pg/L
08/10/2018
Dibromochloromethane
EPA 824
7.34pg/L
08/10/2018
Ethylbenzene
EPA 624
<0.5 pg/L
08/10/2018
IPE
EPA 624
<0.5 pg/L
08/10/2018
M+P Xylene
EPA 624
<1.0 pg/L
08/10/2018
Methylene chloride
EPA 624
<0.5 pg/L
08/10/2018
MTBE
EPA 624
<0.5pg/L
08/10/2018
Naphthalene
EPA 624
<0.6 pg/L
08/10/2018
ortho-Xylene
EPA 624
<0.5 pg/L
08/1012018
Tetrachloroethene
EPA 624
<0.5 pg/L
08/1W018
Toluene
EPA624
<0.5 pg/L
08/10/2018
Trans-1,2-Dichloroethene
EPA 624
<0.5 pg1L
08/10/2018
trans-1,3-Dichloropropene
EPA624
<0.5 pg/L
08/1012018
Trichloroethene
EPA 624
<0.5 pg/L
08/10/2018
Trichlorofluoromethane
EPA824
<0.5pg/L
08110/2018
Vinyl chloride
EPA 624
<0-5 pg/L
08/10/2018
2,4,6 -Trichlorophenol
EPA 525
<5.05pg/L
08/13/2018
ReportlF : 2016.19053
Papa 2 of 5

- Environmental Chemists,c,
6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax
. ® 710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
_ 255 A Wilmington Highway, Jacksonville, NC 28.540 • 910.347.5843 Lab/Fax
ANALYTICAL & CONSULTING CHEMISTS [e-mail]
Town of Manteo
Date of Report: Sep 26, 2018
Post Office Box 246
Customer PO #:
Manteo NC 27954
Customer 110: 08110017
Attention: Shannon Twiddy
Report #: 2018-13053
Project ID: Pollutant Scan
2,4-Dichlorophenol
EPA 625
<5.05 pg/L
08/13/2018
2,4 -Dimethylphenol
EPA 625
<5.05lig/L
08/13/2018
2,4-Dinitrophenol
EPA 625
<25.3 lig/L
0$/13/2018
2 -Chlorophenol
EPA 625
<5.05 ug/L
08/13/2018
2-Methyl4,6-dinitrophenoi
EPA 625
<25.3 pg/L
08/13/2018
2-Nitrophenol
EPA 925
<25.3 pg/L
08/13/2018
4-Chloro3-methyiphenol
EPA 825
<5.05 pg/L
08/13/2018
4-Nitrophenoi
EPA 625
<25.3 pg/L
08/13/2018
Pentachlorophenol
EPA 625
<25.3 pg/L
08/13/2018
Phenol
EPA 625
<5.05 Iig/L
08/13/2018
1,2 Diphenylhydrazine
EPA 625
<5.05 pg/L
08/13/2018
1,2,4-Trichlorobenzene
EPA 825
<5.05 ug/L
08/13/2018
1,2 -Dichlorobenzene
EPAM
<5.05 will-
08/13/2018
1,3 -Dichlorobenzene
EPA 625
<5.05 ug/L
08/13/2018
1,4 -Dichlorobenzene
EPA 625
<5.05 lig/L
08/13/2018
1 -Methylnaphthalene
EPA 625
<5.05 pg/L
08/13/2018
2,4-Dinitrotoluene
EPA 825
<5.05 pg/L
08/13/2018
2,6-Dinitrotoluene
EPA 625
<5.05 pg/L
08113/2018
2-Chloronaphthaiene
EPA626
<5.05 pg/L
08/13/2018
2-Methyinaphthalene
EPA625
<5.05vg/L
08/13/2018
3,3'-Dichlorobenzidine
EPAW5
<10.1 ug/L
08/13/2018
4-Bromophenyl phenyl ether
EPA 62.5
<5.05 pg/L
08/13/2018
4-Chlorophenyl phenyl ether
EPA 825
<5.05 pg/L
08/13/2018
Acenaphthene
EPA 625
<5.05 pg/L
Oa/13/2018
Acenaphthylene
EPA 825
<5.0511g/L
08/13/2018
Anthracene
EPA 625
<5.05 pg/L
08/13/2018
Benzidine
EPA 625
<10.1lig/L
08113/2018
Benzo (a)pyrene
EPA'625
<5.05 pg/L
08/13/2018
Benzo(a)anthracene
EPA926
<5,05 ug/L
08/13/2018
Benzo(b)fluoranthene
EPA 625
<5.05pg/L
08/13/2018
Report:: 2018-79056 - �- --- - - _ � • - -
_ - ---- -
- - - — - -- - � �
PeAtr 3 of S -

0
ANALYTICAL & CONSULTING CHEMISTS
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.4735702 Lab/Pax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
[e-mail]
Town of Manteo
Date of Report: Sep 26, 2018
Post Office Box 246
Customer PO #:
Manteo NC 27954
Customer ID: 08110017
Attention: Shannon Twiddy
Report M. 2018-13053
Project ID: Pollutant Scan
Benzo(g,h,i)perylene
EPA 625
<5.05pg/L
08/13/2018
Benzo(k)fluoranthene
EPA 625
<5.05 pg/L
08/13/2018
Bis ( chloromethyl) ether
EPA 825
<5.05 pg/L
08/13/2018
Bis(2-Chloroethoxy)methane
EPA 625
<5.05 pg/L
08/13/2018
BIS(2-Chloroethyl)ether
EPA 825
<5.05 pg/L
08/13/2018
Bis(2-Chloroisopropyl)ether
EPA 825
<5.05 pg/L
08/13/2018
Bis(2-ethylhexyl)phthalate
EPA 625
<5.05 pg/L
08/13/2018
Butylbenzylphthalate
EPA 825
<5.05 pg/L
08/13/2018
Chrysene
EPA 625
<5.05 pg/L
08/13/2018
Dibenzo(a,h)anthracene
EPA 825
<5.05 pg/L
08/1312018
Diethylphthaiate
EPA 625
<5.05 pg/L
08/13/2018
Dimethylphthalate
EPA 8.25
<5.05 pg/L
08/13/2018
Di-n-Butyiphthalate
EPA 825
<5.05 pg/L
08/13/2018
Di-n-Octylphthalate
EPA 625
<5.05 pg/L
08/13/2018
Fluoranthene
EPA 625
<5.05 pg/L
08/13/2018
Fluorene
EPA 625
<5.05 pg/L
08/13/2018
Hexachlorobenzene
EPA 625
<5.05 pglL
08/13/2018
Hexachlorobutadiene
EPA 625
<5.05 pg/L
08/13/2018
Hexachlorocyclopentadiene
EPA 626
<25.3 pg/L
08/1312018
Hexachloroethane
EPA 625
<5.05 pg/L
08/13/2018
lndeno(1,2,3-cd)pyrene
EPA 625
<5.05 pg/L
08/1312018
Isopharone
EPA625
<5.05 pg/L
08/13/2018
Naphthalene
EPA 625
<5.05 pg/L
08/13/2018
Nitrobenzene
EPA 625
<5.05 pg/i.
08/13/2018
N-nitroso-dimethyiamine(NDMA)
EPA626
<5.05 pglL
08/13/2018
N-Nitroso-di-n-propylamine
EPAS25
<5.05 pg/L
08/13/2018
N-Nitroso-diphenylamine
EPA625
<5.05 pg/L
08/13/2018
Phenanthrene
EPA 825
<5.05 pg/L
0811 312 01 8
Pyrene
EPA625
<5.05 pg/L
0811 312 01 8
Total Hardness
-
Sr" 2340 c
119 mg/L
08/09/2018
Report #:: 2018-33053
Pepe 4 of 5

—"44"""
• ichem
ANALYTICAL 9, CONSULTING CHEMISTS
Town of Manteo
Post Office Box 246
Menteo NC 27954
Attention: Shannon Twiddy
Environmental Chemists, Inc.
6602 Wmdmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
255-A Wilmington Highway,;acksonville, NC 28540 • 910.347.5843 Lab/Fax
info®environmentalchemists.com
Date of Report: Sep 26, 2018
Customer PO #:
Customer II): 08110017
Report #: 2018-13053
Project ID: Pollutant Scan
Total Dissolved Solids (TDS) SM 2640 C 435 mg/L 08/09/2018
Total Phosphorus SM4500PF 3.05 mg/L 08/21/2018
Nitrate Nitrogen (Calc)
Nitrite Nitrogen EPA 353.2 < 0.02 mg/L
Nitrate+Nitrite-Nitrogen EPA 353.2 6.50 mg/L
Nitrate Nitrogen SubUadion Method 6.50 mg/L
Comment:
Reviewed by: 11
08/10/2018
08/15/2018
08/20/2018
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Facility: Manteo WWTP
PermitNo. NC0079057
Prepared By: Nick Coco
Enter Design Flow (MGD):
Enter s7Q10 (cfs):
Enter w7Q10 (cfs):
Total Residual Chlorine (TRC)
Daily Maximum Limit (ug/1)
NH3/TRC WLA Calculations
0.6
0
0
s701 (CFS)
0
DESIGN FLOW (MGD)
0.6
DESIGN FLOW (CFS)
0.93
STREAM STD (UG/L)
17.0
Upstream Bkgd (ug/1)
0
IWC (%)
100.00
Allowable Conc. (ug/1)
17
Less stringent than current permit. Limit not used.
Ammonia (Summer)
Monthly Average Limit (mg NH3-N/1)
s7Q10 (CFS)
0
DESIGN FLOW (MGD)
0.6
DESIGN FLOW (CFS)
0.93
STREAM STD (MG/L)
1.0
Upstream Bkgd (mg/1)
0.22
IWC (%)
100.00
Allowable Conc. (mg/1)
1.0
Limit more stringent than that of current permit.
Limit applied upon expansion.
Ammonia (Winter)
Monthly Average Limit (mg NH3-N/1)
Fecal Coliform
w7Q10 (CFS)
0
Monthly Average Limit:
200/100ml DESIGN FLOW (MGD)
0.6
(If DF >331; Monitor)
DESIGN FLOW (CFS)
0.93
(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 more stringent than that of current permit. limit applied upon expansion.
Total Residual Chlorine
1. Cap Daily Max limit at 28 ug/l 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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United States Environmental Protection Agency Form Approved.
EPA Washington, D.C. 20460 OMB No. 2040-0057
Water Compliance Inspection Report Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 E 2 15 I 3 y NC0079057 111 121 16/06/21 117 18 U 19 [.!j 201
21111111 11111111111 1111111 1 111111 111111111 11 166
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved I
67 70 LJ 1 I 71 1 LI 72 I ti I 73 � 74 751 I I I I I I 180
Section B: Facility LJ
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES Permit Number)
Manteo WWfP
710 Bowsertown Rd
Manteo NC 27954
Name(s) of Onsite Representative(s)/Tides(s)/Phone and Fax Number(s)
///
Nathaniel David Pharr/ORC/252-267-2044/
Name, Address of Responsible Official/ritle/Phone and Fax Number
Entry Time/DateI Permit Effective Date
10:35AM 16/06/21 13/04/01
Exit Time/Datepermit Expiration Date
12:OOPM 16/06/21 17/12/31
Other Facility Data
Contacted
Nathan Pharr,PO Box 246 Manteo NC 279540246//252-305-3491/
No
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 Compliance Schedules
Effluent/Receiving Waters
I Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) I
(See attachment summary)
Name(s) and Signature(s) of Inspector(s)
Justin K Davis
Agency/Office/Phone and Fax Numbers
Non Discharge Compliance Unit//910-79
Signature of -Management Q A Reviewer Agency/Office/Phone and Fax Numbers
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Date
Date
Page# 1

NPDES yr/mo/day Inspection Type
31 NCO079057 � 12 � 16/06/21 i 17 18 I C I
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Justin Davis with DWR, Washington Region, inspected the Manteo WWTP facility on June 21, 2016.
Facility is under permit number NC0079057. The facility was found to be in compliance with permit
number NC0079057. See questions and comments for inspection details.
Page#

s
Yes No NA NE
Are records kept and maintained as required by the permit?
0
❑
Permit: NCO079057 Owner - Facility: Manteo WWrP
❑
Is all required information readily available, complete and current?
0
❑
Inspection Date: 06/21/2016 Inspection Type: Compliance Evaluation
❑
Are all records maintained for 3 years (lab. reg. required 5 years)?
M
❑
❑
❑
Are analytical results consistent with data reported on DMRs?
❑
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?
hi,
❑
❑
❑
# Are there any special conditions for the permit?
❑
0
❑
❑
Is access to the plant site restricted to the general public?
❑
❑
❑
❑
Is the inspector granted access to all areas for inspection?
❑
❑
❑
❑
Comment: Current permit for the Manteo WWTR NCO079057 became effective on ADM 1_.
2013 and
expires at midnight on December 31, 2017. Permit was available at the time of the
Are DMRs complete: do they include all permit parameters?
a
❑
inspection.
❑
Has the facility submitted its annual compliance report to users and DWQ?
❑
Record Keepinrl
Yes No NA NE
Are records kept and maintained as required by the permit?
0
❑
❑
❑
Is all required information readily available, complete and current?
0
❑
❑
❑
Are all records maintained for 3 years (lab. reg. required 5 years)?
M
❑
❑
❑
Are analytical results consistent with data reported on DMRs?
❑
❑
❑
Is the chain -of -custody complete?
❑
❑
❑
Dates, times and location of sampling
❑
Name of individual performing the sampling
❑
Results of analysis and calibration
❑
Dates of analysis
❑
Name of person performing analyses
❑
Transported COCs
❑
Are DMRs complete: do they include all permit parameters?
a
❑
❑
❑
Has the facility submitted its annual compliance report to users and DWQ?
❑
❑
❑
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator
❑
❑
W
❑
on each shift?
Is the ORC visitation log available and current?
W
❑
❑
❑
Is the ORC certified at grade equal to or higher than the facility classification?
!
❑
❑
❑
Is the backup operator certified at one grade less or greater than the facility classification?
It
❑
❑
❑
Is a copy of the current NPDES permit available on site?
❑
❑
❑
Facility has copy of previous year's Annual Report on file for review?
a
❑
❑
❑
Comment: ORC sign -in IoA for 2016 was checked. Nathaniel David Pharr was the ORC at the time of
the inspection. Josh O'Brian was the Back -Up ORC at the time of the inspection.
Nathanial David Pharr 2016 license's: CS 2-991835, SS -988268. SI -987932, WW -991372.
Paper Trail performed: June 2014 and June 2015 -weekly samples verified.
Page# 3

Permit: NCO079057 Owner - Facility: Manteo WWTP
Inspection Date: 06/21/2016 Inspection Type: Compliance Evaluation
ComLliance Schedules Yes No NA NE
Is there a compliance schedule for this facility? ❑ ❑ ■ ❑
Is the facility compliant with the permit and conditions for the review period? ❑ ❑ M ❑
Comment: -NA-
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 ❑ ❑ ❑
Solids, pH, DO, Sludge Judge, and other that are applicable?
Comment: Grass had been cut within days of the inspection. visit. The plant appeared to be well
maintained. Sludge Judge used to et sludge blanket levels of clarifier 1 and 2. Clarifier 1 - _
8" blanket de th. Clarifier 2 - 14" blanket de th.
Influent Samplinq
Yes No NA NE
# Is composite sampling flow proportional?
❑
0
❑
❑
Is sample collected above side streams?
❑
❑
❑
Is proper volume collected?
❑
❑
❑
❑
Is the tubing clean?
❑
❑
❑
❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
0
❑
❑
❑
Celsius)?
❑
❑
Comment: The bar screen unit had been replaced recently, within a month of the inspection.
Micro
Is sampling performed according to the permit?
■
❑
❑
❑
Comment: Tubin-q on the influent sampler was black and purple in color. According
to backup ORC
Josh O'Brian the tubin❑ is changed monthly on the samplers. Tem erature of the influent
sampler was 0 degrees.
Bar Screens
Type of bar screen
Yes No NA NE
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?
❑
❑
❑
Comment: The bar screen unit had been replaced recently, within a month of the inspection.
Micro
Strainer to Grit Chamber. The unit appeared to work properly.
Grit Removal
Yes No NA NE
Page# 4

Permit: NCO079057
Inspection Date: 06/21/2016
Grit Removal
Type of grit removal
a.Manual
b.Mechanical
Is the grit free of excessive organic matter?
Is the grit free of excessive odor?
# Is disposal of grit in compliance?
Comment: Grit removal agDeared to function Properly.
Oxidation Ditches
Are the aerators operational?
Are the aerators free of excessive solids build up?
# 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)?
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: Manteo WVVrP
Inspection Type: Compliance Evaluation
Yes No NA NE
Yes No NA NE
❑ ❑ ❑
❑ ❑ ❑
❑ ❑ ❑
❑ ❑ ❑
❑ ❑ ❑ ■
❑ ❑ ❑ M
❑ ❑ ❑ ■
❑ ❑ ❑ ■
Comment: Rotating Aeration Basin with pH and DO probes linked to SCADA S stem. All rotatirn.
assemblies apperaed to be operating Properly.
Seconder 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 % of the sidewall depth)
Yes No NA NE
33 ❑ ❑ ❑
❑ ❑ ❑
❑ ❑ ❑
®I❑❑❑
* ❑ ❑ ❑
❑ ❑ ❑
❑ ❑ ❑
-'_ ❑ ❑ ❑
Ir ❑ ❑ ❑
❑❑❑
❑ ❑ ❑
Comment: Sludge Judge used to pet sludge blanket levels of clarifier 1 and 2. --Clarifier 1 - 8" blanket
depth. Clarifier 2 - 14" blanket depth.
Page# 5

Permit: NCO079057 Owner - Facility: Manteo W WTP
Inspection Date: 06/21/2016 Inspection Type: Compliance Evaluation
Secondary Clarifier Yes No NA NE
Pumps -RAS -WAS
Yes No NA NE
Are pumps in place?
M
❑
❑
❑
Are pumps operational?
0
❑
❑
❑
Are there adequate spare parts and supplies on site?
❑
❑
❑
■
Comment: RAS and WAS hardware appeared to be well maintained.
Sand Filters (Low rate)
Yes No NA NE
(If pumps are used) Is an audible and visible alarm Present and operational?
M
❑
❑
❑
Is the distribution box level and watertight?
0
❑
❑
❑
Is sand filter free of ponding?
❑
0
❑
❑
Is the sand filter effluent re -circulated at a valid ratio?
❑
ff
❑
❑
# Is the sand filter surface free of algae or excessive vegetation?
0
❑
❑
❑
# Is the sand filter effluent re -circulated at a valid ratio? (Approximately 3 to 1)
❑
a
❑
❑
Comment: High Rate Sand Filter System appeared to function properly
Disinfection -Liquid
Yes No NA NE
Is there adequate reserve supply of disinfectant?
■
❑
❑
❑
(Sodium Hypochlorite) Is pump feed system operational?
❑
❑
❑
❑
Is bulk storage tank containment area adequate? (free of leaks/open drains)
❑
❑
❑
❑
Is the level of chlorine residual acceptable?
❑
❑
❑
❑
Is the contact chamber free of growth, or sludge buildup?
❑
❑
❑
Is there chlorine residual prior to de -chlorination?
0
❑
❑
❑
Comment: Chlorine contact chamber eciuiped with DO. PH. ORP probes and linked to SCADA Svs._
Flow Measurement - Influent
Yes No NA NE
# Is flow meter used for reporting?
❑
❑
M
❑
Is flow meter calibrated annually?
❑
❑
8
❑
Is the flow meter operational?
❑
❑
a
❑
(If units are separated) Does the chart recorder match the flow meter?
❑
❑
IN
❑
Comment: Influent station equipped with Gorman Pumps. Audio and Visual alarms present but not
tested, due to SCADA System link. If the influent station noes down an alarm is sent out, _
the SCADA System and the Operators are informed through electronic devices.
Page# 6

Permit: NCO079057
Inspection Date: 06/21/2016
Owner - Facility: Mantso WWrP
Inspection Type: Compliance Evaluation
Flow Measurement - Effluent
Yes No NA NE
# Is flow meter used for reporting?
❑
❑
❑
Is flow meter calibrated annually?
❑
❑
❑
Is the flow meter operational?
L ❑
❑
❑
(If units are separated) Does the chart recorder match the flow meter?
❑ ❑
❑
❑
Comment: Calibration for the Ootisound Ultra -Sonic Effluent Flow Meter is due November 2016.
Battery Back-up system for effluent electronics is a battery powered Surae protector.
System will reboot within a few minutes of a power failure when the generator system turns
on, but with the Battery Back=Up the effluent reading is not missed at all when the system
works properly. Total gallons reading during inspection 109683 gallons/day.
Effluent Pipe Yes No NA NE
Is right of way to the outfall properly maintained? ❑ ❑ ❑
Are the receiving water free of foam other than trace amounts and other debris? �. ❑ ❑ ❑
If effluent (diffuser pipes are required) are they operating properly? ❑ ❑ ❑
Comment: The outfall is arioroximatlev 400 vards off the shore. Take a right out of the facilitv. ao to the
light, -go straight across. Drive 1.5 tenths of a mile and take a right on a skinny asphault
roadway. It bends slightly to the right. so you will basically be going straight. Drive past 5 or
6 houses to the end of the pavement. There is a spigot to get a sample from for the effluent.
but due to the low flow pressure of the effluent, no water will come out of the spigot. The
outfall is out towards a marker in the eastern direction about 400 yards out from the
shoreline.
De -chlorination
Yes No NA NE
Type of system ?
Liquid
Is the feed ratio proportional to chlorine amount (1 to 1)?
❑
❑
❑
Is storage appropriate for cylinders?
❑
❑
❑
# Is de -chlorination substance stored away from chlorine containers?
❑
❑
❑
Are the tablets the proper size and type?
❑
❑
❑
Comment: Liquid de -chlorination used.
Are tablet de -chlorinators operational?
❑
❑
K
❑
Number of tubes in use?
Comment: Liquid de -chlorination used.
Effluent Samplinn Yes No NA NE
Is composite sampling flow proportional? ❑ 0 ❑ ❑
Is sample collected below all treatment units? ❑ ❑ ❑
Is proper volume collected? V ❑ ❑ ❑
Page# 7

Permit: NCO079057 Owner - Facility: Manteo WWTP
Inspection Date: 06121/2016 Inspection Type: Compliance Evaluation
Effluent SamDlina Yes No NA NE
Is the tubing clean?
■ ❑
❑
❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
W ❑
❑
❑
Celsius)?
❑
❑
❑
Is the facility sampling performed as required by the permit (frequency, sampling type
❑
❑
❑
representative)?
# Is the odor acceptable?
■
❑
Comment: Effluent Sampling is time proportional.
❑
# Is tankage available for properly waste sludge?
Aerobic Digester
Yes No NA NE
Is the capacity adequate?
■
❑
❑
❑
Is the mixing adequate?
0
❑
❑
❑
Is the site free of excessive foaming in the tank?
❑
❑
❑
❑
# Is the odor acceptable?
■
❑
❑
❑
# Is tankage available for properly waste sludge?
❑
❑
❑
Comment: Aiveared to function properly at the time of the inspection.
❑
❑
❑
❑
Standby Power
Yes No NA NE
Is automatically activated standby power'available?
0
❑
❑
❑
Is the generator tested by interrupting primary power source?
0
❑
❑
❑
Is the generator tested under load?
❑
❑
❑
C
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: The generator was started up, it appeared to function Properly.
Laboratory
Yes No NA NE
Are field parameters performed by certified personnel or laboratory?
0
❑
❑
❑
Are all other parameters(excluding field parameters) performed by a certified lab?
S
❑
❑
❑
# Is the facility using a contract lab?
S
❑
❑
❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
❑
❑
❑
`l
Celsius)?
Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees?
❑
❑
❑
hk
Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees?
❑
❑
❑
0
Page# 8

Permit: NCO079057
Inspection Date: 06/21/2016
LaboratM
Owner - Facility: Manteo WWTP
Inspection Type: Compliance Evaluation
Yes No NA NE
Comment: Environmental Chemist does all the lab work for the Manteo WWTP, NC0079057. An
Environmental Chemist, satelite office is located on location at the Manteo WWTP.
Lagoons
Type of lagoons?
# Number of lagoons in operation at time of visit?
Are lagoons operated in?
# Is a re -circulation line present?
Is lagoon free of excessive floating materials?
# Are baffles between ponds or effluent baffles adjustable?
Are dike slopes clear of woody vegetation?
Are weeds controlled around the edge of the lagoon?
Are dikes free of seepage?
Are dikes free of erosion?
Are dikes free of burrowing animals?
# Has the sludge blanket in the lagoon (s) been measured periodically in multiple
locations?
# If excessive algae is present, has barley straw been used to -help control the growth?
Is the lagoon surface free of weeds?
Is the lagoon free of short circuiting?
Yes No NA NE
Facultative
1
❑ ❑ ❑
❑ ❑ ❑
u ❑ 1-30
■ ❑ ❑ ❑
E ❑ 1111
■ ❑ 1111
M ❑ ❑ ❑
■ ❑ ❑ ❑
❑ ❑ IN ❑
❑ ❑ ❑
❑ ❑ ❑
Comment: Sludge holding area/La oon was about 10% full during the inspection. The slud::e is
removed by hauler service. Cost around $50,000 according to ORC.
Aeration Basins
Mode of operation
Type of aeration system
Is the basin free of dead spots?
Are surface aerators and mixers operational?
Are the diffusers operational?
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?
Is the DO level acceptable?(1.0 to 3.0 mg/1)
Yes No NA NE
Surface
❑ ❑ ib ❑
❑ ❑ M ❑
❑ ❑ ■ ❑
❑ 1--][]
❑ ❑ ❑
❑ ❑ ❑
❑ ❑ ❑
Comment: Rotating Aeration Basin with pH and DO probes linked to SCADA System. All rotating
assemblies apoeraed to be operatinaproperly.
Page# 9

Permit: NC0079067
Inspection Date: 06/21/2016
Aeration Basins
Owner - Facility: Manteo WWiP
Inspection Type: Compliance Evaluation
Yes No NA NE
Page# 10