HomeMy WebLinkAboutNC0021644_Fact Sheet_20190228DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
Fact Sheet
NPDES Permit No. NCO021644
Permit Writer/Email Contact Derek Denard, derek.denard@ncdenr.gov:
Date: 28Feb2019
Division/Branch: NC Division of Water Resources/NPDES Complex Permitting
Fact Sheet Template: Version 09Jan2017
Permitting Action:
N Renewal
❑ Renewal with Expansion
❑ New Discharge
❑ Modification (Fact Sheet should be tailored to mod request)
Note: A complete application should include the following:
• For New Dischargers, EPA Form 2A or 2D requirements, Engineering Alternatives Analysis, Fee
• For Existing Dischargers (POTW), EPA Form 2A, 3 effluent pollutant scans, 4 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 La Grange/ La Grange WWTP
Applicant Address:
PO Box 368, LaGrange, NC 28551
Facility Address:
off East King Street, Lange 28551
Permitted Flow:
0.750 MGD
Facility Type/Waste:
Minor Municipal; 100% domestic
Facility Class:
Grade IV Biological WPCS
Treatment Units:
See list below
Pretreatment Program (Y/N)
No
County:
Lenoir
Region
Washington
The wastewater treatment facility that includes the following components:
• Automatic grit remover
• Mechanical bar screen
• Manual bar screen
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DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
• Influent flow measurement by Parshall flume
• Two equalization basins with lift pumps to the oxidation ditch
• Biological treatment in two parallel, mechanically -aerated oxidation ditches
• Four submersible velocity mixers
• Four secondary clarifiers with scum removal and gravity sludge return
• Three parallel low -rate sand filters for tertiary treatment
• Effluent flow measurement by V-notch weir
• Chlorine contact chamber with flow -paced gas chlorine feed
• Dechlorination with sulfur dioxide
• Post -aeration
• Fixed mechanical aerator.
Briefly describe the proposed permitting action and facility background: The Town of La Grange has
applied for NPDES permit renewal and submitted a renewal application dated August 9, 2017. This
facility serves a population of 3,000 residents. The application includes a sludge management plan.
Residual solids are disposed of under land application permit WQ0010488 on approximately 57.1
acres of permitted land.
2. Receiving Waterbody Information:
Receiving Waterbody Information
Outfalls/Receiving Stream(s):
Outfall 001- UT to Mosely Creek
Stream Segment:
27-77-2
Stream Classification:
C;Sw,NSW
Drainage Area (mi2):
0.44
Summer 7Q10 (cfs)
0
Winter 7Q 10 (cfs):
0
30Q2 (cfs):
0.08
Average Flow (cfs):
0.53
IWC (% effluent):
100%
303(d) listed/parameter:
No — See attached Final 2016 Integrated Report, p. 667.
Subject to TMDL/parameter:
Yes — Neuse River Estuary TMDL/Nitrogen.
Subbasin/HUC:
Neuse; 03-04-05 [HUC 030202020205]
USGS Topo Quad:
La Grange, NC
3. Effluent Data Summary
Effluent data is summarized below for the period Oct2015 to Sep2018 (3 years).
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DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
Table. Effluent Data Summary
Parameter Location
Data
Limits
MA WA
Max
Min
Average
Cant
@r013010 - Temperature, Water Deg_ Centigrade
Efluent
29.5
6.5
20.4
746
p 00300 - Oxygen, Dissolved (DO)
Efluent
11.6
5.1
8.2
746
Daily average > 5_(
000400 - pH
Efluent
7.6
6
(u. "�
746
Not > 9.0 nor < 6_(
E00625 - Nitrogen, Igeldahl, Total (as N)
Efluent
10.35
02
1.2
157
E 00630 - Nitrite plus Nitrate Total (as N)
Efluent
35.8
0.21
3.6
157
E 01092 -Zinc, Total (as Zn)
Efluent
385
11
37.5
72
125--r
125.7*
p31616 - Cdiform, Fecal MF, MFC Broth, 44.5 C
Efluent
2419
1
1Ik�.,kf
746
200
4(
E 50050 - Flow, in conduit or thru treatment plant
Efluent
1.5
0.034
0.6
1096
0.750
E50060 -Chlorine, Total Residual
Efluent
90
1
15.9
746
Daily Maximum U
E C0530 - Solids, Total Suspended - Concentration
Efluent
Inluent
58
2.5
3.8
747
30 4
566
28
147.8
746
p C0600 - Nitrogen, Total -Concentration
Efluent
37.9
1.65
4.8
157
E C0665 - Phosphorus, Total (as P) - Concentration
Efluent
3.7
0.05
1.4
157
E QM600 - Nitrogen, Total - Quantity (Monthly)
Efluent
3349.838
254.54
708.0
33
9 QY600 - Nitrogen, Total - Quantity (Yearly)
Efluent
9716.713
941.8
5355.9
8
8,447
MA = Monthly Average; WA = Weekly Average; UoM = Unit of Measurement; PQL = Practical Quantitation Limit
* New Limits far Total Zinc
Parameter T
C0310 - BOD, 5-Day (20 Deg_ C) - Concerytratior
Locati - Month -
Data
I
MA
10
10
10
5
5
5
5
5
5
5
10
10
7_I
Max Min Average Count
11.1 2 3.363 60
4.3 2 2.566 61
9.4 2 3.084 67
9.4 2 3.208 60
9.4 2 3.178 65
8.9 2 2.842 65
5.9 2 2.813 61
5.4 2 2.630 69
11.4 2.5 4.355 60
11.7 2.5 4.511 65
12.5 2.5 2.836 56
10.3 2.5 3.088 57
=j Efluen
1
2
3
4
5
6
7
8
9
10
11
12
Efluent Total
12.5
2
3205
746
pinluert
1
249 33 126.3 60
207 23 126.9 61
1967 38 171.7 67
342 73 135.5 60
414 70 163.0 65
277 46 148.5 65
358 60 160.8 61
401 24 139.3 69
355 25 146.5 60
365 37 137.8 65
334 38 162.6 56
301 64 151.3 57
2
3
4
5
6
7
8
9
10
11
12
Influent Total
19671
23
147.57
746
BC0610 - Nitrogen, Ammonia Total (as N) - ConCE
aEfluen
1
2
12.2 0.04 2-45 59
5.51 0.04 0.72 61
325 0.04 0.32 67
3.45 0.04 0.37 60
4.55 0.04 027 65
2.31 0.04 0.19 64
1.48 0.04 0.11 61
1.1 0.04 0.07 69
1.91 0.04 0.17 60
2.37 0.04 0.31 65
0.8 0.04 0.06 56
3.61 0.04 0.19 57
4
4
4
2
2
2
2
2
2
2
4
4
2
3
4
5
6
7
8
9
10
11
12
Efluent Total
1 12.2
0.04
0-431
744
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0
i
PQL UoM
deg c
mgA
su
mgA
mgA
10 ugA
1 #1100ml
mgd
ugA
2.5 mgA
2.5 mgA
mgA
mgA
Ib/mon
Ibslyr
imits
WA
PQL UaM
0
15.5
2.0,2.5 mgA
0
15.5
2.0,2.5 mgA
0
15.5
2.0,2.5 mgA
0
7.5
2.0,2.5 mgA
0
7.5
2.0,2.5 mgA
0
7.5
2.0,2.5 mgA
0
7.5
2.0,2.5 mgA
0
7.5
2.0,2.5 mgA
0
7.5
2.0,2.5 mgA
0
7.5
2.0,2.5 mgA
0
15.5
2.0,2.5 mgA
0
15.5
2.0,2.5 mgA
18
10.8
2.0,2.5 mgA
2.0,2.5 mgA
2.0,2.5 mgA
2.0,2.5 mgA
2.0,2.5 mgA
2.0,2.5 mgA
2.0,2.5 mgA
2.0,2.5 mgA
2.0,2.5 mgA
2.0,2.5 mgA
2.0,2.5 mgA
2.0,2.5 mgA
2.0,2.5 mgA
2.0,2.5 mgA
0
12.0
0.04 mgA
0
12.0
0.04 mgA
0
12.0
0.04 mgA
0
6.0
0.04 mgA
0
6.0
0.04 mgA
0
6.0
0.04 mgA
0
6.0
0.04 mgA
0
6.0
0.04 mgA
0
6.0
0.04 mgA
0
6.0
0.04 mgA
0
12.0
0.04 mgA
0
12.0
0.04 mgA
8
8.5
0.04 mgA
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
Review of monitoring data for the period Oct2015 to Sep2018 (3 years) resulted in the following
comments. Please amend DMRs accordingly:
• Monthly TN loading should be reported 12 times a year. Reporting of Monthly TN Loading for
February, March and April is missing.
• Data was reported as zero (0) for Ammonia, BOD, Fecal Coliform, and TSS. Reporting zero for
any parameter, with few exceptions such as temperature, is inadequate reporting. The method
PQL should be reported along with the data modifier "less than" (<) instead of zero. Minimum
detection and reporting levels (MDLs & PQLs) are defined by the DWR Water Sciences Section
as follows:
Each analytical procedure has a Practical Quantitation Limit (PQL), which is defined as
"the lowest concentration that can be reliably achieved within specified limits of
precision and accuracy during routine laboratory operating conditions." PQLs are
subjectively set at some multiple of typical Method Detection Limits (MDLs) for reagent
water (generally 3 to 5 times the MDL). The PQL for a procedure may also be defined
by: a reporting limit or minimum limit (ML) specified by the analytical method; sample
volume and buret graduations; and/or minimum measurement values that are method -
defined. The established PQL for a procedure serves as a reliable and routinely
achievable reporting limit for a biological or chemical parameter
(hgps://deq.nc. gov/about/divisions/water-resources/water-resources-data/water-sciences-
home-page/microbiology inorganics-branch/methods-p-gls-qa).
In accordance with NPDES Standard Conditions Part II Section D. 4., the following is required
for test procedures:
To meet the intent of the monitoring required by this permit, all test procedures must produce
minimum detection and reporting levels that are below the permit discharge requirements and
all data generated must be reported down to the minimum detection or lower reporting level
of the procedure. If no approved methods are determined capable of achieving minimum
detection and reporting levels below permit discharge requirements, then the most sensitive
(method with the lowest possible detection and reporting level) approved method must be
used.
• Units of Measure (UoM) — mg/L, vs. µg/L: For Total zinc please carefully report the
correct units of measurement in eDMR. When your contract lab report results in
mg/L the conversion is to µg/L is to multiply by 1000. When converting from µg/L
to mg/L the result is divided by 1000. Please report results for Zinc in µg/L for
consistency with permits limits.
• For 2016, annual TN loading (parameter code QY600) was reported in February 2016. For 2018
the yearly parameter QY600 for yearly TN was reported 6 times. This parameter QY600 should
only be reported once per year in December. The parameter code QM600 should be used for
monthly reporting of TN.
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/1 of instream standard at full permitted flow; 2) to
verify model predictions for outfall diffuser; 3) to provide data for future TMDL; 4) based on other
instream concerns. Instream monitoring may be conducted by the Permittee, and there are also
Monitoring Coalitions established in several basins that conduct instream sampling for the Permittee (in
which case instream monitoring is waived in the permit as long as coalition membership is maintained).
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If applicable, summarize any instream data and what instream monitoring will be proposed for this
permit action:
Is this facility a member of a Monitoring Coalition with waived instream monitoring (YIN): Yes.
Name of Monitoring Coalition: Lower Neuse River Association.
5. Compliance Summary
Summarize the compliance record with permit effluent limits (past 5 years): See attached Monitoring
Report Violation BIMS export Oct2015 to Sep2018, 17 pages. The facility received three (3) NODs for
BOD and one NOD for Ammonia. For BOD, one (1) was for a monthly average exceedance and two (2)
were for weekly average exceedances. For ammonia, the NOD was for a monthly average exceedance.
All other violation actions decisions were noted as No Action, best professional judgement (BPJ) or No
Action, Facility Reporting Error.
Summarize the compliance record with aquatic toxicity test limits and any second species test results
(past 5 years): NA.
Summarize the results from the most recent compliance inspection: See attached Water Compliance
Inspection Report 12/10/18.
6. Water Quality -Based Effluent Limitations (WQBELs)
Dilution and Mixing Zones
hi accordance with 15A NCAC 2B.0206, the following streamflows are used for dilution considerations
for development of WQBELs: 1 Q 10 streamflow (acute Aquatic Life); 7Q 10 streamflow (chronic Aquatic
Life; non -carcinogen HH); 30Q2 streamflow (aesthetics); annual average flow (carcinogen, HH).
If applicable, describe any other dilution factors considered (e.g., based on CORMIX model results): NA.
If applicable, describe any mixing zones established in accordance with 15A NCAC 2B.0204(b): NA.
Oxygen -Consuming Waste Limitations
Limitations for oxygen -consuming waste (e.g., BOD) are generally based on water quality modeling to
ensure protection of the instream dissolved oxygen (DO) water quality standard. Secondary TBEL limits
(e.g., BOD= 30 mg/l for Municipals) may be appropriate if deemed more stringent based on dilution and
model results.
Ifpermit limits are more stringent than TBELs, describe how limits were developed: Limitations for BOD
are based on a Streeter Phelps model (Level B) for instream DO protection. 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/l (winter). Acute ammonia limits are derived from chronic criteria,
utilizing a multiplication factor of 3 for Municipals and a multiplication factor of 5 for Non -Municipals.
Limitations for Total Residual Chlorine (TRC) are based on the NC water quality standard for protection
of aquatic life (17 µg/1) and capped at 28 µg/l (acute impacts). Due to analytical issues, all TRC values
reported below 50 µg/l are considered compliant with their permit limit.
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Describe any proposed changes to ammonia and/or TRC limits for this permit renewal: There are no
proposed changes.
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 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 May2016 and
Sep2018. 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: Total Zinc.
• Monitoring Only: The following parameters will receive a monitor -only requirement since they
did not demonstrate reasonable potential to exceed applicable water quality standards/criteria, but
the maximum predicted concentration was >50% of the allowable concentration: NA.
• No Limit or Monitorin;: 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.
• Summary of new limits added based on RPA:
Parameter Monthly Average Limit Daily Maximum Limit
Zinc 125.7 µg/L 125.7 µg/L
• Summary of existing limits deleted based on RPA: NA.
• Other: 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: NA.
o The following parameter(s) will receive a monitor -only requirement, since as part of a
limited data set, one sample exceeded the allowable discharge concentration: NA.
If applicable, attach a spreadsheet of the RPA results as well as a copy of the Dissolved Metals
Implementation Fact Sheet for freshwater/saltwater to this Fact Sheet. Include a printout of the RPA
Dissolved to Total Metal Calculator sheet if this is a Municipality with a Pretreatment Program.
Toxicity Testing Limitations
Permit limits and monitoring requirements for Whole Effluent Toxicity (WET) have been established in
accordance with Division guidance (per WET Memo, 8/2/1999). Per WET guidance, all NPDES permits
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DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
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 facility is a minor municipal with a 100%. Toxicity
monitoring is not required. No changes are proposed from the previous permit.
Mercury Statewide TMDL Evaluation
There is a statewide TMDL for mercury approved by EPA in 2012. The TMDL target was to comply with
EPA's mercury fish tissue criteria (0.3 mg/kg) for human health protection. The TMDL established a
wasteload allocation for point sources of 37 kg/year (81 lb/year), and is applicable to municipals and
industrial facilities with known mercury discharges. Given the small contribution of mercury from point
sources (-2% of total load), the TMDL emphasizes mercury minimization plans (MMPs) for point source
control. Municipal facilities > 2 MGD and discharging quantifiable levels of mercury (>1 ng/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
No mercury date is available for the facility.
Describe proposed permit actions based on mercury evaluation: To be consistent with 2012 Statewide
Mercury TMDL Implementation total Mercury must be monitored once during the permit cycle for a
minor municipality. Mercury monitoring is included to provide a database for future mercury
management and TMDL evaluation. See Special Condition A. (7).
Other TMDL/Nutrient Management Strategy Considerations
If applicable, describe any other TMDLs/Nutrient Management Strategies and their implementation
within this permit: Total Phosphorus (TP) effluent limits have been changed from Monitor & Report to
2.0 mg/L (weekly average) per the Neuse Permitting Summary Feb 2013.
Other WOBEL Considerations
If applicable, describe any other parameters of concern evaluated for WQBELs: NA.
If applicable, describe any special actions (HQW or ORW) this receiving stream and classification shall
comply with in order to protect the designated waterbody: NA.
If applicable, describe any compliance schedules proposed for this permit renewal in accordance with
15A NCAC 2H. 010 7(c) (2) (B), 40CFR 122.47, and EPA May 2007 Memo: A 4-year compliance schedule
is proposed for meeting the new zinc effluent limit. Annual milestones are included for this Special
Condition.
If applicable, describe any water quality standards variances proposed in accordance with NCGS 143-
215.3(e) and 1 SA NCAC 2B. 0226 for this permit renewal: NA.
7. Technology -Based Effluent Limitations (TBELs)
Municipals if not applicable, delete and skip to Industrials)
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Are concentration limits in the permit at least as stringent as secondary treatment requirements (30 mg/l
BODS/TSS for Monthly Average, and 45 mg/l for BODS/TSS for Weekly Average). YES.
If NO, provide a justification for alternative limitations (e.g., waste stabilization pond). NA.
Are 85% removal requirements for BODS/TSS included in the permit? YES.
If NO, provide a justification (e.g., waste stabilization pond). NA.
8. Antidegradation Review (New/Expanding Discharge):
The objective of an antidegradation review is to ensure that a new or increased pollutant loading will not
degrade water quality. Permitting actions for new or expanding discharges require an antidegradation
review in accordance with 15A NCAC 2B.0201. Each applicant for a new/expanding NPDES permit must
document an effort to consider non -discharge alternatives per 15A NCAC 2H.0105( c)(2). In all cases,
existing instream water uses and the level of water quality necessary to protect the existing use is
maintained and protected.
If applicable, describe the results of the antidegradation review, including the Engineering Alternatives
Analysis (EAA) and any water quality modeling results: NA.
9. Antibacksliding Review:
Sections 402(o)(2) and 303(d)(4) of the CWA and federal regulations at 40 CFR 122.44(1) prohibit
backsliding of effluent limitations in NPDES permits. These provisions require effluent limitations in a
reissued permit to be as stringent as those in the previous permit, with some exceptions where limitations
may be relaxed (e.g., based on new information, increases in production may warrant less stringent TBEL
limits, or WQBELs may be less stringent based on updated RPA or dilution).
Are any effluent limitations less stringent than previous permit (YES/NO): NO.
If YES, confirm that antibacksliding provisions are not violated: NA.
10. Monitoring Requirements
Monitoring frequencies for NPDES permitting are established in accordance with the following
regulations and guidance: 1) State Regulation for Surface Water Monitoring, 15A NCAC 2B.0500; 2)
NPDES Guidance, Monitoring Frequency for Toxic Substances (7/15/2010 Memo); 3) NPDES Guidance,
Reduced Monitoring Frequencies for Facilities with Superior Compliance (10/22/2012 Memo); 4) Best
Professional Judgement (BPJ). Per US EPA (Interim Guidance, 1996), monitoring requirements are not
considered effluent limitations under Section 402(o) of the Clean Water Act, and therefore anti -
backsliding prohibitions would not be triggered by reductions in monitoring frequencies.
For instream monitoring, refer to Section 4.
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. Current Permit Conditions and Proposed Changes
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DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
Parameter
Current Permit
Proposed Change
Basis for Condition/Change
Flow
MA 0.750 MGD
No change
15A NCAC 2B .0505
BOD5
Summer:
Frequency reduction
WQBEL. Based on protection of DO
MA 5.0 mg/l
from daily to 2/week
standard. 15A NCAC 2B.0200
WA 7.5 mg/l
monitoring
Winter:
DWQ Guidance Regarding the
MA 10.0 mg/l
Reduction of Monitoring
WA 15.5 mg/l
Frequencies in NPDES Permits for
Exceptionally Performing Facilities
October 22, 2012 (see attached)
NH3-N
Summer:
Frequency reduction
WQBEL. Based on protection of
MA 2.0 mg/l
from daily to 2/week
State WQ criteria. 15A NCAC
WA 6.0 mg/l
monitoring
2B.0200
Winter:
MA 4.0 mg/l
DWQ Guidance Regarding the
WA 12.0 mg/l
Reduction of Monitoring
Frequencies in NPDES Permits for
Exceptionally Performing Facilities
October 22, 2012 (see attached)
TSS
MA 30 mg/l
Frequency reduction
TBEL. Secondary treatment
WA 45 mg/l
from daily to 2/week
standards/40 CFR 133 / 15A NCAC
monitoring
2B .0406
DWQ Guidance Regarding the
Reduction of Monitoring
Frequencies in NPDES Permits for
Exceptionally Performing Facilities
October 22, 2012(see attached)
Fecal coliform
MA 200 /100ml
Frequency reduction
WQBEL. State WQ standard, 15A
WA 400 /100ml
from daily to 2/week
NCAC 2B.0200
monitoring
DWQ Guidance Regarding the
Reduction of Monitoring
Frequencies in NPDES Permits for
Exceptionally Performing Facilities
October 22, 2012(see attached)
DO
Daily average > 5.0
No change
WQBEL. State WQ standard, 15A
mg/L
NCAC 2B .0200
pH
6 — 9 SU
No change
WQBEL. State WQ standard, 15A
NCAC 2B .0200
Total Nitrogen
8,447 lb/yr
No change
WQBEL. Required individual
TN/TP nutrient limits per Neuse
permitting strategy, and to comply
with NC chl-a WQS. 15A NCAC
2B.0200
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DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
Total Phosphorus
Monitor Only
Add TP weely average
WQBEL. Required individual
limit, 2 mg/1
TN/TP nutrient limits per Neuse
permitting strategy and to comply
with NC chl-a WQS, 15A NCAC
2B.0200.
Total Zinc
Monitor Only
Added
WQBEL. State WQ standard, 15A
MA 125.7 µg/l
NCAC 2B .0200. See Dissolved
DM 125.7 µg/l
Metals Implementation Fact Sheet
for freshwater/saltwater.
Total Hardness
No requirement
Monitor Only for
WQBEL. State WQ standard, 15A
Effluent & Upstream
NCAC 2B .0200. See Dissolved
Metals Implementation Fact Sheet
for freshwater/saltwater.
Mercury
No requirement
Add monitoring once
WQBEL. Consistent with 2012
Minimization Plan
per 5-year permit.
Statewide Mercury TMDL
(MMP)
Implementation.
Electronic
No requirement
Add Electronic
In accordance with EPA Electronic
Reporting
Reporting Special
Reporting Rule 2015.
Condition
MGD — Million gallons per day, MA - Monthly Average, WA — Weekly Average, DM — Daily Max
We have made the following updates for the permit renewal:
1. Regulatory citations have been added to the permit.
2. The facility map has been updated.
3. The facility classification Grade IV Biological Water Pollution Control System has been added to
the effluent page.
4. Total Phosphorus (TP) effluent limits have been changed from Monitor & Report to 2.0 mg/L
(weekly average) per the Neuse Permitting Summary Feb 2013.
5. Section A. (7.) has been added to reflect current language regarding electronic submission of
effluent data. Federal regulations require electronic submittal of all discharge monitoring reports
(DMRs).
6. The NC 2007-2014 Water Quality Standard (WQS) Triennial Review was approved by the NC
Environmental Management Committee (EMC) on November 13, 2014. The US EPA
subsequently approved the WQS revisions on April 6, 2016 with some exceptions. The NC
Division of Water Resources is required to implement the new dissolved metal standards in all
permits public noticed after April 6, 2016.
The new standards for most metals include acute standards. Furthermore, the freshwater standards
for several metals are expressed as the dissolved form of the metals, and seven metals have
hardness -dependent equations. As a result, the Division will need site -specific effluent hardness
data and instream hardness data, upstream of the discharge, for each facility monitoring these
metals in order to calculate permit limitations. The metal of concern for this permit renewal is
Zinc.
To evaluate dissolved Zinc, a Reasonable Potential Analysis (RPA) was conducted using data
reported on DMRs from November 2015 to March 2018. Results indicated a reasonable potential
Page 10 of 12
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
to exceed both the Acute and Chronic allowable concentrations for Zinc, 125.7 µg/L and 126.7
µg/L, respectively. The Acute value is typically used as the daily maximum limit and Chronic
value is typically used as the monthly average limit. However, the Chronic value for Zinc is less
stringent. The monthly average limit must be more stringent or equal to the daily maximum limit.
Therefore, the daily maximum limit and monthly average limit for Zinc will be the Acute value as
follows:
Parameter Outfall Monthly Average Daily Maximum Limit
Zinc 001 125.7 µg/L 125.7 µg/L
Please note that on May 29, 2018 additional information was requested for Total Hardness. The
total hardness data should have included five (5) days of Total Hardness (CaCO3 or (Ca + Mg))
data for the effluent and upstream of Outfall 001. This data would have been used in a
recalculation of Zinc limits for the draft permit. However, no response was received within 60
calendar days [per 15A NCAC 2H.0107(b)]. Therefore, the permit renewal was drafted without
the benefit of the requested Hardness data. Therefore, a default hardness of 25 mg/L was used to
calculate effluent limits for Zinc as indicated above.
7. A schedule of compliance [Section A. (3.)] has been added for the Total Zinc limits in Section A.
(L). Compliance with this limit shall commence approximately 48 months form the permit
effective date.
8. Effluent and upstream quarterly monitoring for Total Hardness have been added.
9. Division personnel have reviewed and approved your permit modification request to reduce the
effluent and influent monitoring frequencies for Biochemical Oxygen Demand (BOD5), Total
Suspended Solids (TSS), Ammonia, and Fecal Coliform from daily to 2/week monitoring. The
modification was based upon an evaluation of three years of facility effluent monitoring data. The
facility's performance satisfies the criteria established in the "DWQ Guidance Regarding the
Reduction of Monitoring Frequencies in NPDES Permits for Exceptionally Performing Facilities"
as approved by the Director of the Division of Water Resources on October 22, 2012 and justifies
reduced monitoring for these parameters. Please note that additional NPDES permit requirements
will include:
• Eligible facilities may be granted a reduction from existing permit monitoring
frequencies to a 2/week minimum frequency for the four target parameters. Reductions
will be made for both effluent and influent sampling.
• Where monitoring is reduced to twice per week, it must occur on any two non-
consecutive days during the calendar week (Sunday through Saturday).
• Required monitoring frequency reductions establish new permit minimums for
monitoring. As always, facilities may monitor more often than required in the permit.
• If a reportable event, as defined by the permit [e.g., Part 11(E) (6 & 9)] occurs, any
facility granted reduced monitoring frequencies will be encouraged to monitor on a daily
basis until the episode is resolved.
10. Total Mercury must be monitored once during the permit cycle. Mercury monitoring is included to
provide a database for future mercury management and TMDL evaluation. See Special Condition A.
(2.).
Page 11 of 12
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
13. Public Notice Schedule:
Permit to Public Notice: 01/14/2019
Per 15A NCAC 2H .0109 & .0111, The Division will receive comments for a period of 30 days following
the publication date of the public notice. Any request for a public hearing shall be submitted to the
Director within the 30 days comment period indicating the interest of the party filing such request and the
reasons why a hearing is warranted.
14. Fact Sheet Addendum (if applicable):
Were there any changes made since the Draft Permit was public noticed (Yes/No): NO
If Yes, list changes and their basis below: NA
15. Fact Sheet Attachments (if applicable):
A. Final 2016 Integrated Report, p. 667.
B. Monitoring Report Violation BIMS export Oct2015 to Sep2018, 17 pages.
C. Water Compliance Inspection Report 12/10/2018
D. RPA Spreadsheet Summary, 5 pages.
E. Dissolved Metals Implementation/Freshwater or Saltwater Memo. 4 pages.
F. Reference: DWQ Guidance Regarding the Reduction of Monitoring Frequencies in NPDES
Permit for Exceptionally Performing Facilities, 2 pages.
G. Monitoring Frequency Reduction Evaluation, 9 pages.
H. Enforcement History, 1 page.
1. Affidavit of Publication - Kinston Free Press 02-14-19, 2 pages.
J. Permittee Comments, 1 page.
K. Washington Regional Office Comments, 2 pages.
Page 12 of 12
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
K. Final 2016 Integrated Report -All Assessed Waters
EM4rrmuzmtdl Middle Neuse River Subbasin Neuse River Basin
autr
Assessment Unit Name Assessment Unit Description
Assessment Unit Number Water Quality Classification Length/Area Units
Mosely Creek
27-77-2
From source to Falling Creek
C;Sw,NSW
Assessment Criteria Status Reason for Rating Parameter of Interest
,Meeting Criteria < 10% IpH (4.3 su, AL, Sw)
Meeting Criteria < 10% pH (9.0, AL, FW)
Meeting Criteria < 10% Turbidity (50 NTU, AL, FW miles)
Meeting Criteria < 10% Water Temperature (322C, AL, LP&CP)
Meeting Criteria < 10% Dissd Ox olveygen (4 mg/I, AL, FW)
'Meeting Criteria FCB AP GM<200 and <209/.] Fecal Coliform (GM 200/400, REC, FW)
Mosley Creek
27-84
From source to Neuse River
5.2 FW Miles
Category
1
1
C;Sw,NSW 12.7 FW Miles
Assessment Criteria Status
Reason for Rating
Parameter of Interest
Category
Data Inconclusive
Not Rated
Fish Community (Nar, AL, FW)
3a
4/11/2018 2016 Integrated Report -All Assessed Waters Page 667 of 1306
Fish tissue assessments for mercury apply to all waters and are not individually listed
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
MONITORING REPORT(MR) VIOLATIONS for: Report Date: 11/27/18 Page: 1 of 17
Permit: NCO021644 MRs Between 10 - 2015 and 9 - 2018 Region: % Violation Category% Program Category:
Facility Name: % Param Name % County: % Subbasin:% Violation Action: %
Major Minor: % L 41 a
PERMIT: NCO021644 FACILITY: Town of La Grange- La Grange WWTP COUNTY: Lenoir REGION: Washington
Limit Violation
MONITORING OUTFALL/ VIOLATION UNIT OF CALCULATED %
REPORT PPI LOCATION PARAMETER DATE FREQUENCY MEASURE LIMIT VALUE Over VIOLATION TYPE VIOLATION ACTION
10 -2016 001 Effluent BOD, 5-Day (20 Deg. C) - 10/22/16 5 X week mg/I 7.5 10.74 43.2 Weekly Average Proceed to NOD
Concentration Exceeded
10 - 2016 001 Effluent BOD, 5-Day (20 Deg. C) - 10/31 /16 5 X week mg/I 5 6.62 32.5 Monthly Average Proceed to NOD
Concentration Exceeded
09 - 2017 001 Effluent BOD, 5-Day (20 Deg. C) - 09/16/17 5 X week mg/I 7.5 9.78 30.4 Weekly Average Proceed to NOD
Concentration Exceeded
04 - 2018 001 Effluent BOD, 5-Day (20 Deg. C) - 04/07/18 5 X week mg/I 7.5 7.72 3 Weekly Average No Action, BPJ
Concentration Exceeded
09 - 2018 001 Effluent BOD, 5-Day (20 Deg. C) - 09/30/18 5 X week mg/I 5 5.18 3.6 Monthly Average None
Concentration Exceeded
10 - 2015 001 Effluent Chlorine, Total Residual 10/02/15 5 X week ug/I 17 19 11.8 Daily Maximum No Action, BPJ
Exceeded
10 - 2015 001 Effluent Chlorine, Total Residual 10/07/15 5 X week ug/I 17 24 41.2 Daily Maximum No Action, BPJ
Exceeded
10 - 2015 001 Effluent Chlorine, Total Residual 10/08/15 5 X week ug/I 17 21 23.5 Daily Maximum No Action, BPJ
Exceeded
10 - 2015 001 Effluent Chlorine, Total Residual 10/09/15 5 X week ug/I 17 20 17.6 Daily Maximum No Action, BPJ
Exceeded
10 - 2015 001 Effluent Chlorine, Total Residual 10/14/15 5 X week ug/I 17 32 88.2 Daily Maximum No Action, BPJ
Exceeded
10 - 2015 001 Effluent Chlorine, Total Residual 10/15/15 5 X week ug/I 17 45 164.7 Daily Maximum No Action, BPJ
Exceeded
10 - 2015 001 Effluent Chlorine, Total Residual 10/16/15 5 X week ug/I 17 48 182.4 Daily Maximum No Action, BPJ
Exceeded
10 -2015 001 Effluent Chlorine, Total Residual 10/19/15 5 X week ug/I 17 18 5.9 Daily Maximum No Action, BPJ
Exceeded
10 _2015 001 Effluent Chlorine, Total Residual 10/21/15 5 X week ug/I 17 27 58.8 Daily Maximum No Action, BPJ
Exceeded
10 -2015 001 Effluent Chlorine, Total Residual 10/22/15 5 X week ug/I 17 21 23.5 Daily Maximum No Action, BPJ
Exceeded
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
MONITORING REPORT(MR) VIOLATIONS for:
Permit: NCO021644 MRS Between 10 - 2015 and 9 - 2018 Region: %
Facility Name: % Param Name % County: %
Major Minor: %
Report Date: 11/27/18 Page: 2 of 17
7MW
Violation Category:% Program Category: %
Subbasin:% Violation Action: %
PERMIT: NCO021644
FACILITY:
Town of La Grange - La Grange WWTP
COUNTY: Lenoir
REGION: Washington
Limit Violation
MONITORING
OUTFALL/
VIOLATION
UNIT OF
CALCULATED
%
REPORT
PPI
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
10 - 2015
001
Effluent
Chlorine, Total Residual
10/23/15
5 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
10 - 2015
001
Effluent
Chlorine, Total Residual
10/27/15
5 X week
ug/I
17
19
11.8
Daily Maximum
No Action, BPJ
Exceeded
10 - 2015
001
Effluent
Chlorine, Total Residual
10/30/15
5 X week
ug/I
17
21
23.5
Daily Maximum
No Action, BPJ
Exceeded
11 - 2015
001
Effluent
Chlorine, Total Residual
11/16/15
5 X week
ug/I
17
48
182.4
Daily Maximum
No Action, BPJ
Exceeded
12 - 2015
001
Effluent
Chlorine, Total Residual
12/16/15
5 X week
ug/1
17
24
41.2
Daily Maximum
No Action, BPJ
Exceeded
12 - 2015
001
Effluent
Chlorine, Total Residual
12/18/15
5 X week
ug/I
17
20
17.6
Daily Maximum
No Action, BPJ
Exceeded
12 - 2015
001
Effluent
Chlorine, Total Residual
12/21/15
5 X week
ug/I
17
43
152.9
Daily Maximum
No Action, BPJ
Exceeded
12 - 2015
001
Effluent
Chlorine, Total Residual
12/23/15
5 X week
ug/I
17
20
17.6
Daily Maximum
No Action, BPJ
Exceeded
12 - 2015
001
Effluent
Chlorine, Total Residual
12/29/15
5 X week
ug/I
17
48
182.4
Daily Maximum
No Action, BPJ
Exceeded
01 - 2016
001
Effluent
Chlorine, Total Residual
01/04/16
5 X week
ug/I
17
49
188.2
Daily Maximum
No Action, BPJ
Exceeded
01 - 2016
001
Effluent
Chlorine, Total Residual
01/14/16
5 X week
ug/I
17
43
152.9
Daily Maximum
No Action, BPJ
Exceeded
01 - 2016
001
Effluent
Chlorine, Total Residual
01/19/16
5 X week
ug/I
17
33
94.1
Daily Maximum
No Action, BPJ
Exceeded
01 - 2016
001
Effluent
Chlorine, Total Residual
01/20/16
5 X week
ug/I
17
48
182.4
Daily Maximum
No Action, BPJ
Exceeded
02 - 2016
001
Effluent
Chlorine, Total Residual
02/01/16
5 X week
ug/I
17
38
123.5
Daily Maximum
No Action, BPJ
Exceeded
02 - 2016
001
Effluent
Chlorine, Total Residual
02/04/16
5 X week
ug/I
17
42
147.1
Daily Maximum
No Action, BPJ
Exceeded
02 - 2016
001
Effluent
Chlorine, Total Residual
02/05/16
5 X week
ug/I
17
41
141.2
Daily Maximum
No Action, BPJ
Exceeded
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
MONITORING REPORT(MR) VIOLATIONS for:
Permit: NCO021644 MRS Between 10 - 2015 and 9 - 2018 Region: %
Facility Name: % Param Name % County: %
Major Minor: %
Report Date: 11/27/18 Page: 3 of 17
7MW
Violation Category:% Program Category: %
Subbasin:% Violation Action: %
PERMIT: NCO021644
FACILITY:
Town of La Grange - La Grange WWTP
COUNTY: Lenoir
REGION: Washington
Limit Violation
MONITORING
OUTFALL/
VIOLATION
UNIT OF
CALCULATED
%
REPORT
PPI
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
02 -2016
001
Effluent
Chlorine, Total Residual
02/08/16
5 X week
ug/I
17
23
35.3
Daily Maximum
No Action, BPJ
Exceeded
02 -2016
001
Effluent
Chlorine, Total Residual
02/09/16
5 X week
ug/I
17
48
182.4
Daily Maximum
No Action, BPJ
Exceeded
02 - 2016
001
Effluent
Chlorine, Total Residual
02/17/16
5 X week
ug/I
17
50
194.1
Daily Maximum
No Action, BPJ
Exceeded
02 - 2016
001
Effluent
Chlorine, Total Residual
02/18/16
5 X week
ug/I
17
46
170.6
Daily Maximum
No Action, BPJ
Exceeded
03 - 2016
001
Effluent
Chlorine, Total Residual
03/03/16
5 X week
ug/1
17
48
182.4
Daily Maximum
No Action, BPJ
Exceeded
03 - 2016
001
Effluent
Chlorine, Total Residual
03/04/16
5 X week
ug/I
17
45
164.7
Daily Maximum
No Action, BPJ
Exceeded
03 - 2016
001
Effluent
Chlorine, Total Residual
03/09/16
5 X week
ug/I
17
47
176.5
Daily Maximum
No Action, BPJ
Exceeded
03 - 2016
001
Effluent
Chlorine, Total Residual
03/10/16
5 X week
ug/I
17
48
182.4
Daily Maximum
No Action, BPJ
Exceeded
03 - 2016
001
Effluent
Chlorine, Total Residual
03/11/16
5 X week
ug/I
17
19
11.8
Daily Maximum
No Action, BPJ
Exceeded
04 -2016
001
Effluent
Chlorine, Total Residual
04/19/16
5 X week
ug/I
17
24
41.2
Daily Maximum
No Action, BPJ
Exceeded
05 -2016
001
Effluent
Chlorine, Total Residual
05/02/16
5 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
05 _2016
001
Effluent
Chlorine, Total Residual
05/18/16
5 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
05 - 2016
001
Effluent
Chlorine, Total Residual
05/26/16
5 X week
ug/I
17
24
41.2
Daily Maximum
No Action, BPJ
Exceeded
05 - 2016
001
Effluent
Chlorine, Total Residual
05/27/16
5 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
06 - 2016
001
Effluent
Chlorine, Total Residual
06/06/16
5 X week
ug/I
17
21
23.5
Daily Maximum
No Action, BPJ
Exceeded
06 - 2016
001
Effluent
Chlorine, Total Residual
06/07/16
5 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
MONITORING REPORT(MR) VIOLATIONS for:
Permit: NCO021644 MRS Between 10 - 2015 and 9 - 2018 Region: %
Facility Name: % Param Name % County: %
Major Minor: %
Report Date: 11/27/18 Page: 4 of 17
7MW
Violation Category:% Program Category: %
Subbasin:% Violation Action: %
PERMIT: NCO021644
FACILITY:
Town of La Grange - La Grange WWTP
COUNTY: Lenoir
REGION: Washington
Limit Violation
MONITORING
OUTFALL/
VIOLATION
UNIT OF
CALCULATED
%
REPORT
PPI
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
06 -2016
001
Effluent
Chlorine, Total Residual
06/08/16
5 X week
ug/I
17
44
158.8
Daily Maximum
No Action, BPJ
Exceeded
06 - 2016
001
Effluent
Chlorine, Total Residual
06/09/16
5 X week
ug/I
17
19
11.8
Daily Maximum
No Action, BPJ
Exceeded
06 - 2016
001
Effluent
Chlorine, Total Residual
06/10/16
5 X week
ug/I
17
47
176.5
Daily Maximum
No Action, BPJ
Exceeded
06 - 2016
001
Effluent
Chlorine, Total Residual
06/27/16
5 X week
ug/I
17
27
58.8
Daily Maximum
No Action, BPJ
Exceeded
06 - 2016
001
Effluent
Chlorine, Total Residual
06/28/16
5 X week
ug/I
17
21
23.5
Daily Maximum
No Action, BPJ
Exceeded
07 - 2016
001
Effluent
Chlorine, Total Residual
07/08/16
5 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
07 - 2016
001
Effluent
Chlorine, Total Residual
07/21/16
5 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
07 - 2016
001
Effluent
Chlorine, Total Residual
07/22/16
5 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
07 - 2016
001
Effluent
Chlorine, Total Residual
07/25/16
5 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
07 - 2016
001
Effluent
Chlorine, Total Residual
07/26/16
5 X week
ug/I
17
20
17.6
Daily Maximum
No Action, BPJ
Exceeded
07 - 2016
001
Effluent
Chlorine, Total Residual
07/28/16
5 X week
ug/I
17
20
17.6
Daily Maximum
No Action, BPJ
Exceeded
07 - 2016
001
Effluent
Chlorine, Total Residual
07/29/16
5 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
08 - 2016
001
Effluent
Chlorine, Total Residual
08/01/16
5 X week
ug/I
17
19
11.8
Daily Maximum
No Action, BPJ
Exceeded
08 - 2016
001
Effluent
Chlorine, Total Residual
08/03/16
5 X week
ug/I
17
29
70.6
Daily Maximum
No Action, BPJ
Exceeded
08 - 2016
001
Effluent
Chlorine, Total Residual
08/04/16
5 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
08 - 2016
001
Effluent
Chlorine, Total Residual
08/05/16
5 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
MONITORING REPORT(MR) VIOLATIONS for:
Permit: NCO021644 MRS Between 10 - 2015 and 9 - 2018 Region: %
Facility Name: % Param Name % County: %
Major Minor: %
Report Date: 11/27/18 Page: 5 of 17
7MW
Violation Category:% Program Category: %
Subbasin:% Violation Action: %
PERMIT: NCO021644
FACILITY:
Town of La Grange - La Grange WWTP
COUNTY: Lenoir
REGION: Washington
Limit Violation
MONITORING
OUTFALL/
VIOLATION
UNIT OF
CALCULATED
%
REPORT
PPI
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
08 -2016
001
Effluent
Chlorine, Total Residual
08/08/16
5 X week
ug/I
17
20
17.6
Daily Maximum
No Action, BPJ
Exceeded
08 -2016
001
Effluent
Chlorine, Total Residual
08/09/16
5 X week
ug/I
17
21
23.5
Daily Maximum
No Action, BPJ
Exceeded
09 -2016
001
Effluent
Chlorine, Total Residual
09/13/16
5 X week
ug/I
17
23
35.3
Daily Maximum
No Action, BPJ
Exceeded
09 _2016
001
Effluent
Chlorine, Total Residual
09/21/16
5 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
10 - 2016
001
Effluent
Chlorine, Total Residual
10/03/16
5 X week
ug/I
17
20
17.6
Daily Maximum
No Action, BPJ
Exceeded
10 - 2016
001
Effluent
Chlorine, Total Residual
10/04/16
5 X week
ug/I
17
47
176.5
Daily Maximum
No Action, BPJ
Exceeded
10 - 2016
001
Effluent
Chlorine, Total Residual
10/10/16
5 X week
ug/I
17
48
182.4
Daily Maximum
No Action, BPJ
Exceeded
10 - 2016
001
Effluent
Chlorine, Total Residual
10/11/16
5 X week
ug/I
17
46
170.6
Daily Maximum
No Action, BPJ
Exceeded
10 - 2016
001
Effluent
Chlorine, Total Residual
10/12/16
5 X week
ug/I
17
45
164.7
Daily Maximum
No Action, BPJ
Exceeded
10 - 2016
001
Effluent
Chlorine, Total Residual
10/13/16
5 X week
ug/I
17
38
123.5
Daily Maximum
No Action, BPJ
Exceeded
10 - 2016
001
Effluent
Chlorine, Total Residual
10/14/16
5 X week
ug/I
17
45
164.7
Daily Maximum
No Action, BPJ
Exceeded
10 - 2016
001
Effluent
Chlorine, Total Residual
10/17/16
5 X week
ug/I
17
49
188.2
Daily Maximum
No Action, BPJ
Exceeded
10 - 2016
001
Effluent
Chlorine, Total Residual
10/18/16
5 X week
ug/I
17
45
164.7
Daily Maximum
No Action, BPJ
Exceeded
10 - 2016
001
Effluent
Chlorine, Total Residual
10/19/16
5 X week
ug/I
17
48
182.4
Daily Maximum
No Action, BPJ
Exceeded
10 - 2016
001
Effluent
Chlorine, Total Residual
10/20/16
5 X week
ug/I
17
43
152.9
Daily Maximum
No Action, BPJ
Exceeded
10 - 2016
001
Effluent
Chlorine, Total Residual
10/21/16
5 X week
ug/I
17
31
82.4
Daily Maximum
No Action, BPJ
Exceeded
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
MONITORING REPORT(MR) VIOLATIONS for:
Permit: NCO021644 MRS Between 10 - 2015 and 9 - 2018 Region: %
Facility Name: % Param Name % County: %
Major Minor: %
Report Date: 11/27/18 Page: 6 of 17
Violation Category:% Program Category: 0/
4gr
Subbasin:% le
Violation Action: 0a
PERMIT: NCO021644
FACILITY:
Town of La Grange - La Grange WWTP
COUNTY: Lenoir
REGION: Washington
Limit Violation
MONITORING
OUTFALL/
VIOLATION
UNIT OF
CALCULATED
%
REPORT
PPI
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
10 - 2016
001
Effluent
Chlorine, Total Residual
10/25/16
5 X week
ug/I
17
37
117.6
Daily Maximum
No Action, BPJ
Exceeded
10 - 2016
001
Effluent
Chlorine, Total Residual
10/26/16
5 X week
ug/I
17
29
70.6
Daily Maximum
No Action, BPJ
Exceeded
10 - 2016
001
Effluent
Chlorine, Total Residual
10/27/16
5 X week
ug/I
17
21
23.5
Daily Maximum
No Action, BPJ
Exceeded
10 - 2016
001
Effluent
Chlorine, Total Residual
10/28/16
5 X week
ug/I
17
44
158.8
Daily Maximum
No Action, BPJ
Exceeded
10 - 2016
001
Effluent
Chlorine, Total Residual
10/31/16
5 X week
ug/1
17
30
76.5
Daily Maximum
No Action, BPJ
Exceeded
11 - 2016
001
Effluent
Chlorine, Total Residual
11/02/16
5 X week
ug/I
17
47
176.5
Daily Maximum
No Action, BPJ
Exceeded
11 -2016
001
Effluent
Chlorine, Total Residual
11/03/16
5 X week
ug/I
17
48
182.4
Daily Maximum
No Action, BPJ
Exceeded
11 - 2016
001
Effluent
Chlorine, Total Residual
11/04/16
5 X week
ug/I
17
46
170.6
Daily Maximum
No Action, BPJ
Exceeded
11 - 2016
001
Effluent
Chlorine, Total Residual
11/07/16
5 X week
ug/I
17
46
170.6
Daily Maximum
No Action, BPJ
Exceeded
11 - 2016
001
Effluent
Chlorine, Total Residual
11/08/16
5 X week
ug/I
17
48
182.4
Daily Maximum
No Action, BPJ
Exceeded
11 - 2016
001
Effluent
Chlorine, Total Residual
11/16/16
5 X week
ug/I
17
19
11.8
Daily Maximum
No Action, BPJ
Exceeded
11 - 2016
001
Effluent
Chlorine, Total Residual
11/17/16
5 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
11 - 2016
001
Effluent
Chlorine, Total Residual
11/22/16
5 X week
ug/I
17
47
176.5
Daily Maximum
No Action, BPJ
Exceeded
11 - 2016
001
Effluent
Chlorine, Total Residual
11/23/16
5 X week
ug/I
17
45
164.7
Daily Maximum
No Action, BPJ
Exceeded
01 - 2017
001
Effluent
Chlorine, Total Residual
01/09/17
5 X week
ug/I
17
45
164.7
Daily Maximum
No Action, BPJ
Exceeded
01 - 2017
001
Effluent
Chlorine, Total Residual
01/10/17
5 X week
ug/I
17
47
176.5
Daily Maximum
No Action, BPJ
Exceeded
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
MONITORING REPORT(MR) VIOLATIONS for:
Permit: NCO021644 MRS Between 10 - 2015 and 9 - 2018 Region: %
Facility Name: % Param Name % County: %
Major Minor: %
Report Date: 11/27/18 Page: 7 of 17
7MW
Violation Category:% Program Category: %
Subbasin:% Violation Action: %
PERMIT: NCO021644
FACILITY:
Town of La Grange - La Grange WWTP
COUNTY: Lenoir
REGION: Washington
Limit Violation
MONITORING
OUTFALL/
VIOLATION
UNIT OF
CALCULATED
%
REPORT
PPI
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
01 -2017
001
Effluent
Chlorine, Total Residual
01/11/17
5 X week
ug/I
17
49
188.2
Daily Maximum
No Action, BPJ
Exceeded
01 - 2017
001
Effluent
Chlorine, Total Residual
01/13/17
5 X week
ug/I
17
36
111.8
Daily Maximum
No Action, BPJ
Exceeded
01 -2017
001
Effluent
Chlorine, Total Residual
01/27/17
5 X week
ug/I
17
44
158.8
Daily Maximum
No Action, BPJ
Exceeded
03 _2017
001
Effluent
Chlorine, Total Residual
03/31/17
5 X week
ug/I
17
90
429.4
Daily Maximum
No Action, BPJ
Exceeded
04 - 2017
001
Effluent
Chlorine, Total Residual
04/14/17
5 X week
ug/I
17
48
182.4
Daily Maximum
No Action, BPJ
Exceeded
04 - 2017
001
Effluent
Chlorine, Total Residual
04/25/17
5 X week
ug/I
17
47
176.5
Daily Maximum
No Action, BPJ
Exceeded
04 - 2017
001
Effluent
Chlorine, Total Residual
04/27/17
5 X week
ug/I
17
48
182.4
Daily Maximum
No Action, BPJ
Exceeded
04 - 2017
001
Effluent
Chlorine, Total Residual
04/28/17
5 X week
ug/I
17
45
164.7
Daily Maximum
No Action, BPJ
Exceeded
05 - 2017
001
Effluent
Chlorine, Total Residual
05/01/17
5 X week
ug/I
17
47
176.5
Daily Maximum
No Action, BPJ
Exceeded
05 -2017
001
Effluent
Chlorine, Total Residual
05/02/17
5 X week
ug/I
17
44
158.8
Daily Maximum
No Action, BPJ
Exceeded
05 -2017
001
Effluent
Chlorine, Total Residual
05/03/17
5 X week
ug/I
17
48
182.4
Daily Maximum
No Action, BPJ
Exceeded
05 _2017
001
Effluent
Chlorine, Total Residual
05/05/17
5 X week
ug/I
17
39
129.4
Daily Maximum
No Action, BPJ
Exceeded
09 -2017
001
Effluent
Chlorine, Total Residual
09/08/17
5 X week
ug/I
17
41
141.2
Daily Maximum
No Action, BPJ
Exceeded
09 -2017
001
Effluent
Chlorine, Total Residual
09/11/17
5 X week
ug/I
17
43
152.9
Daily Maximum
No Action, BPJ
Exceeded
09 - 2017
001
Effluent
Chlorine, Total Residual
09/28/17
5 X week
ug/I
17
19
11.8
Daily Maximum
No Action, BPJ
Exceeded
10 - 2017
001
Effluent
Chlorine, Total Residual
10/16/17
5 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
MONITORING REPORT(MR) VIOLATIONS for:
Permit: NCO021644 MRS Between 10 - 2015 and 9 - 2018 Region: %
Facility Name: % Param Name % County: %
Major Minor: %
Report Date: 11/27/18 Page: 8 of 17
7MW
Violation Category:% Program Category: %
Subbasin:% Violation Action: %
PERMIT: NCO021644
FACILITY:
Town of La Grange - La Grange WWTP
COUNTY: Lenoir
REGION: Washington
Limit Violation
MONITORING
OUTFALL/
VIOLATION
UNIT OF
CALCULATED
%
REPORT
PPI
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
11 -2017
001
Effluent
Chlorine, Total Residual
11/02/17
5 X week
ug/I
17
47
176.5
Daily Maximum
No Action, BPJ
Exceeded
12 - 2017
001
Effluent
Chlorine, Total Residual
12/15/17
5 X week
ug/I
17
20
17.6
Daily Maximum
No Action, BPJ
Exceeded
12 - 2017
001
Effluent
Chlorine, Total Residual
12/20/17
5 X week
ug/I
17
26
52.9
Daily Maximum
No Action, BPJ
Exceeded
12 - 2017
001
Effluent
Chlorine, Total Residual
12/27/17
5 X week
ug/I
17
48
182.4
Daily Maximum
No Action, BPJ
Exceeded
12 - 2017
001
Effluent
Chlorine, Total Residual
12/28/17
5 X week
ug/1
17
47
176.5
Daily Maximum
No Action, BPJ
Exceeded
12 - 2017
001
Effluent
Chlorine, Total Residual
12/29/17
5 X week
ug/I
17
48
182.4
Daily Maximum
No Action, BPJ
Exceeded
01 -2018
001
Effluent
Chlorine, Total Residual
01/22/18
5 X week
ug/I
17
42
147.1
Daily Maximum
No Action, BPJ
Exceeded
01 -2018
001
Effluent
Chlorine, Total Residual
01/31/18
5 X week
ug/I
17
48
182.4
Daily Maximum
No Action, BPJ
Exceeded
02 - 2018
001
Effluent
Chlorine, Total Residual
02/01/18
5 X week
ug/I
17
48
182.4
Daily Maximum
No Action, BPJ
Exceeded
02 - 2018
001
Effluent
Chlorine, Total Residual
02/02/18
5 X week
ug/I
17
31
82.4
Daily Maximum
No Action, BPJ
Exceeded
03 -2018
001
Effluent
Chlorine, Total Residual
03/28/18
5 X week
ug/I
17
43
152.9
Daily Maximum
No Action, BPJ
Exceeded
03 _2018
001
Effluent
Chlorine, Total Residual
03/29/18
5 X week
ug/I
17
47
176.5
Daily Maximum
No Action, BPJ
Exceeded
03 -2018
001
Effluent
Chlorine, Total Residual
03/30/18
5 X week
ug/I
17
48
182.4
Daily Maximum
No Action, BPJ
Exceeded
04 -2018
001
Effluent
Chlorine, Total Residual
04/05/18
5 X week
ug/I
17
27
58.8
Daily Maximum
No Action, BPJ
Exceeded
04 - 2018
001
Effluent
Chlorine, Total Residual
04/06/18
5 X week
ug/I
17
28
64.7
Daily Maximum
No Action, BPJ
Exceeded
04 - 2018
001
Effluent
Chlorine, Total Residual
04/18/18
5 X week
ug/I
17
48
182.4
Daily Maximum
No Action, BPJ
Exceeded
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
MONITORING REPORT(MR) VIOLATIONS for:
Permit: NCO021644 MRS Between 10 - 2015 and 9 - 2018 Region: %
Facility Name: % Param Name % County: %
Major Minor: %
Report Date: 11/27/18 Page: 9 of 17
7MW
Violation Category:% Program Category: %
Subbasin:% Violation Action: %
PERMIT: NCO021644
FACILITY:
Town of La Grange - La Grange WWTP
COUNTY: Lenoir
REGION: Washington
Limit Violation
MONITORING
OUTFALL/
VIOLATION
UNIT OF
CALCULATED
%
REPORT
PPI
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
04 - 2018
001
Effluent
Chlorine, Total Residual
04/19/18
5 X week
ug/I
17
49
188.2
Daily Maximum
No Action, BPJ
Exceeded
04 -2018
001
Effluent
Chlorine, Total Residual
04/20/18
5 X week
ug/I
17
47
176.5
Daily Maximum
No Action, BPJ
Exceeded
04 -2018
001
Effluent
Chlorine, Total Residual
04/23/18
5 X week
ug/I
17
45
164.7
Daily Maximum
No Action, BPJ
Exceeded
05 _2018
001
Effluent
Chlorine, Total Residual
05/16/18
5 X week
ug/I
17
31
82.4
Daily Maximum
No Action, BPJ
Exceeded
05 - 2018
001
Effluent
Chlorine, Total Residual
05/17/18
5 X week
ug/I
17
27
58.8
Daily Maximum
No Action, BPJ
Exceeded
05 - 2018
001
Effluent
Chlorine, Total Residual
05/18/18
5 X week
ug/I
17
28
64.7
Daily Maximum
No Action, BPJ
Exceeded
05 - 2018
001
Effluent
Chlorine, Total Residual
05/23/18
5 X week
ug/I
17
27
58.8
Daily Maximum
No Action, BPJ
Exceeded
05 - 2018
001
Effluent
Chlorine, Total Residual
05/24/18
5 X week
ug/I
17
23
35.3
Daily Maximum
No Action, BPJ
Exceeded
05 - 2018
001
Effluent
Chlorine, Total Residual
05/25/18
5 X week
ug/I
17
28
64.7
Daily Maximum
No Action, BPJ
Exceeded
05 -2018
001
Effluent
Chlorine, Total Residual
05/29/18
5 X week
ug/I
17
46
170.6
Daily Maximum
No Action, BPJ
Exceeded
05 -2018
001
Effluent
Chlorine, Total Residual
05/30/18
5 X week
ug/I
17
31
82.4
Daily Maximum
No Action, BPJ
Exceeded
05 _2018
001
Effluent
Chlorine, Total Residual
05/31/18
5 X week
ug/I
17
38
123.5
Daily Maximum
No Action, BPJ
Exceeded
06 - 2018
001
Effluent
Chlorine, Total Residual
06/01/18
5 X week
ug/I
17
43
152.9
Daily Maximum
No Action, BPJ
Exceeded
06 - 2018
001
Effluent
Chlorine, Total Residual
06/04/18
5 X week
ug/I
17
30
76.5
Daily Maximum
No Action, BPJ
Exceeded
06 - 2018
001
Effluent
Chlorine, Total Residual
06/05/18
5 X week
ug/I
17
32
88.2
Daily Maximum
No Action, BPJ
Exceeded
06 - 2018
001
Effluent
Chlorine, Total Residual
06/13/18
5 X week
ug/I
17
40
135.3
Daily Maximum
No Action, BPJ
Exceeded
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
MONITORING REPORT(MR) VIOLATIONS for:
Permit: NCO021644 MRS Between 10 - 2015 and 9 - 2018 Region: %
Facility Name: % Param Name % County: %
Major Minor: %
Report Date: 11/27/18 Page: 10 of 17
Violation Category:% Program Category: 0/
4gr
Subbasin:% IN
Violation Action: 0a
PERMIT: NCO021644
FACILITY:
Town of La Grange - La Grange WWTP
COUNTY: Lenoir
REGION: Washington
Limit Violation
MONITORING
OUTFALL/
VIOLATION
UNIT OF
CALCULATED
%
REPORT
PPI
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
06 -2018
001
Effluent
Chlorine, Total Residual
06/15/18
5 X week
ug/I
17
48
182.4
Daily Maximum
No Action, BPJ
Exceeded
07 -2018
001
Effluent
Chlorine, Total Residual
07/05/18
5 X week
ug/I
17
22
29.4
Daily Maximum
No Action, BPJ
Exceeded
07 - 2018
001
Effluent
Chlorine, Total Residual
07/06/18
5 X week
ug/I
17
26
52.9
Daily Maximum
No Action, BPJ
Exceeded
07 - 2018
001
Effluent
Chlorine, Total Residual
07/09/18
5 X week
ug/I
17
21
23.5
Daily Maximum
No Action, BPJ
Exceeded
07 - 2018
001
Effluent
Chlorine, Total Residual
07/11/18
5 X week
ug/1
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
07 - 2018
001
Effluent
Chlorine, Total Residual
07/13/18
5 X week
ug/I
17
45
164.7
Daily Maximum
No Action, BPJ
Exceeded
07 - 2018
001
Effluent
Chlorine, Total Residual
07/17/18
5 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
07 - 2018
001
Effluent
Chlorine, Total Residual
07/30/18
5 X week
ug/I
17
48
182.4
Daily Maximum
No Action, BPJ
Exceeded
08 - 2018
001
Effluent
Chlorine, Total Residual
08/06/18
5 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
08 - 2018
001
Effluent
Chlorine, Total Residual
08/13/18
5 X week
ug/I
17
48
182.4
Daily Maximum
No Action, BPJ
Exceeded
08 - 2018
001
Effluent
Chlorine, Total Residual
08/20/18
5 X week
ug/I
17
43
152.9
Daily Maximum
No Action, BPJ
Exceeded
08 - 2018
001
Effluent
Chlorine, Total Residual
08/21/18
5 X week
ug/I
17
46
170.6
Daily Maximum
No Action, BPJ
Exceeded
08 - 2018
001
Effluent
Chlorine, Total Residual
08/22/18
5 X week
ug/I
17
35
105.9
Daily Maximum
No Action, BPJ
Exceeded
08 - 2018
001
Effluent
Chlorine, Total Residual
08/27/18
5 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
09 - 2018
001
Effluent
Chlorine, Total Residual
09/20/18
5 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
09 - 2018
001
Effluent
Chlorine, Total Residual
09/28/18
5 X week
ug/I
17
46
170.6
Daily Maximum
No Action, BPJ
Exceeded
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
MONITORING REPORT(MR) VIOLATIONS for:
Permit: NCO021644 MRS Between 10 - 2015 and 9 - 2018 Region: %
Facility Name: % Param Name % County: %
Major Minor: %
Report Date: 11/27/18 Page: 11 of 17
Violation Category:% Program Category: %
Subbasin:% IN
Violation Action: %
PERMIT: NCO021644
FACILITY: Town of La Grange - La Grange WWTP
COUNTY: Lenoir
REGION: Washington
Limit Violation
MONITORING
OUTFALL/
VIOLATION
UNIT OF
CALCULATED
%
REPORT
PPI
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
12 -2015
001
Effluent
Flow, in conduit or thru
12/31/15
Continuous
mgd
0.75
0.856
14.1
Monthly Average
No Action, BPJ
treatment plant
Exceeded
01 - 2016
001
Effluent
Flow, in conduit or thru
01/31/16
Continuous
mgd
0.75
1.131
50.9
Monthly Average
No Action, BPJ
treatment plant
Exceeded
02 -2016
001
Effluent
Flow, in conduit or thru
02/29/16
Continuous
mgd
0.75
1.329
77.3
Monthly Average
No Action, BPJ
treatment plant
Exceeded
03 -2016
001
Effluent
Flow, in conduit or thru
03/31/16
Continuous
mgd
0.75
0.946
26.1
Monthly Average
No Action, BPJ
treatment plant
Exceeded
10 -2016
001
Effluent
Flow, in conduit or thru
10/31/16
Continuous
mgd
0.75
1.071
42.8
Monthly Average
No Action, BPJ
treatment plant
Exceeded
08 -2018
001
Effluent
Flow, in conduit or thru
08/31/18
Continuous
mgd
0.75
1.24
65.4
Monthly Average
None
treatment plant
Exceeded
09 - 2018
001
Effluent
Flow, in conduit or thru
09/30/18
Continuous
mgd
0.75
1.267
68.9
Monthly Average
None
treatment plant
Exceeded
01 - 2018
001
Effluent
Nitrogen, Ammonia Total (as
01/31/18
5 X week
mg/I
4
6.12
53.0
Monthly Average
Proceed to NOD
N) - Concentration
Exceeded
12 - 2015
001
Effluent
Nitrogen, Total - Quantity
12/31/15
Annually
Ibs/yr
8,447
9,113.7
7.9
Annual Load Exceeded
No Action, BPJ
(Yearly)
09 - 2018
001
Effluent
Nitrogen, Total - Quantity
09/30/18
Annually
Ibs/yr
8,447
9,716.71
15.0
Annual Load Exceeded
None
(Yearly)
Monitoring Violation
MONITORING
OUTFALL/
VIOLATION
UNIT OF
CALCULATED
%
REPORT
PPI
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
07 -2016
001
Effluent
BOD, 5-Day (20 Deg. C) -
07/09/16
5 X week
mg/I
Frequency Violation
No Action, Facility
Concentration
Reporting Error
09 -2016
001
Effluent
BOD, 5-Day (20 Deg. C) -
09/10/16
5 X week
mg/I
Frequency Violation
No Action, BPJ
Concentration
11 -2016
001
Effluent
BOD, 5-Day (20 Deg. C) -
11/12/16
5 X week
mg/I
Frequency Violation
No Action, BPJ
Concentration
11 -2016
001
Effluent
BOD, 5-Day (20 Deg. C) -
11/26/16
5 X week
mg/I
Frequency Violation
No Action, BPJ
Concentration
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
MONITORING REPORT(MR) VIOLATIONS for:
Permit: NCO021644 MRS Between 10 - 2015 and 9 - 2018 Region: %
Facility Name: % Param Name % County: %
Major Minor: %
Report Date: 11/27/18 Page: 12 of 17
7MW
Violation Category:% Program Category: %
Subbasin:% Violation Action: %
PERMIT: NCO021644
FACILITY: Town of La Grange - La Grange WWTP
COUNTY: Lenoir REGION: Washington
Monitoring Violation
MONITORING
OUTFALL/
VIOLATION
UNIT OF
CALCULATED %
REPORT
PPI
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT VALUE Over VIOLATION TYPE
VIOLATION ACTION
12 -2016
001
Effluent
BOD, 5-Day (20 Deg. C) -
12/24/16
5 X week
mg/I
Frequency Violation
No Action, BPJ
Concentration
12 -2016
001
Effluent
BOD, 5-Day (20 Deg. C) -
12/31/16
5 X week
mg/I
Frequency Violation
No Action, BPJ
Concentration
01 - 2017
001
Effluent
BOD, 5-Day (20 Deg. C) -
01/07/17
5 X week
mg/I
Frequency Violation
No Action, BPJ
Concentration
01 - 2017
001
Effluent
BOD, 5-Day (20 Deg. C) -
01/21/17
5 X week
mg/I
Frequency Violation
No Action, BPJ
Concentration
04 - 2017
001
Effluent
BOD, 5-Day (20 Deg. C) -
04/22/17
5 X week
mg/I
Frequency Violation
No Action, BPJ
Concentration
06 - 2017
001
Effluent
BOD, 5-Day (20 Deg. C) -
06/03/17
5 X week
mg/I
Frequency Violation
No Action, Facility
Concentration
Reporting Error
07 - 2017
001
Effluent
BOD, 5-Day (20 Deg. C) -
07/08/17
5 X week
mg/I
Frequency Violation
No Action, Facility
Concentration
Reporting Error
09 - 2017
001
Effluent
BOD, 5-Day (20 Deg. C) -
09/09/17
5 X week
mg/I
Frequency Violation
No Action, Facility
Concentration
Reporting Error
07 - 2016
001
Effluent
Coliform, Fecal MF, MFC
07/09/16
5 X week
#/100m1
Frequency Violation
No Action, Facility
Broth, 44.5 C
Reporting Error
09 - 2016
001
Effluent
Coliform, Fecal MF, MFC
09/10/16
5 X week
#/100m1
Frequency Violation
No Action, BPJ
Broth, 44.5 C
11 - 2016
001
Effluent
Coliform, Fecal MF, MFC
11/12/16
5 X week
#/100m1
Frequency Violation
No Action, BPJ
Broth, 44.5 C
11 - 2016
001
Effluent
Coliform, Fecal MF, MFC
11/26/16
5 X week
#/100m1
Frequency Violation
No Action, BPJ
Broth, 44.5 C
12 - 2016
001
Effluent
Coliform, Fecal MF, MFC
12/24/16
5 X week
#/100m1
Frequency Violation
No Action, BPJ
Broth, 44.5 C
12 - 2016
001
Effluent
Coliform, Fecal MF, MFC
12/31/16
5 X week
#/100m1
Frequency Violation
No Action, BPJ
Broth, 44.5 C
01 - 2017
001
Effluent
Coliform, Fecal MF, MFC
01/07/17
5 X week
#/100m1
Frequency Violation
No Action, BPJ
Broth, 44.5 C
01 - 2017
001
Effluent
Coliform, Fecal MF, MFC
01/21/17
5 X week
#/100m1
Frequency Violation
No Action, BPJ
Broth, 44.5 C
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
MONITORING REPORT(MR) VIOLATIONS for:
Permit: NCO021644 MRS Between 10 - 2015 and 9 - 2018 Region: %
Facility Name: % Param Name % County: %
Major Minor: %
Report Date: 11/27/18 Page: 13 of 17
Violation Category:% Program Category: 0/a
49r
Subbasin:% IN
Violation Action: 0a
PERMIT: NCO021644
FACILITY: Town of La Grange - La Grange WWTP
COUNTY: Lenoir REGION: Washington
Monitoring Violation
MONITORING OUTFALL/
VIOLATION
UNIT OF
CALCULATED %
REPORT
PPI
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT VALUE Over VIOLATION TYPE
VIOLATION ACTION
04 _2017
001
Effluent
Coliform, Fecal MF, MFC
04/22/17
5 X week
#/100ml
Frequency Violation
No Action, BPJ
Broth, 44.5 C
06 -2017
001
Effluent
Coliform, Fecal MF, MFC
06/03/17
5 X week
#/100ml
Frequency Violation
No Action, Facility
Broth, 44.5 C
Reporting Error
07 -2017
001
Effluent
Coliform, Fecal MF, MFC
07/08/17
5 X week
#/100ml
Frequency Violation
No Action, Facility
Broth, 44.5 C
Reporting Error
09 -2017
001
Effluent
Coliform, Fecal MF, MFC
09/09/17
5 X week
#/100ml
Frequency Violation
No Action, Facility
Broth, 44.5 C
Reporting Error
01 - 2016
001
Effluent
Nitrogen, Ammonia Total (as
01/30/16
5 X week
mg/I
Frequency Violation
No Action, BPJ
N) - Concentration
07 - 2016
001
Effluent
Nitrogen, Ammonia Total (as
07/09/16
5 X week
mg/I
Frequency Violation
No Action, Facility
N) - Concentration
Reporting Error
09 - 2016
001
Effluent
Nitrogen, Ammonia Total (as
09/10/16
5 X week
mg/I
Frequency Violation
No Action, BPJ
N) - Concentration
11 - 2016
001
Effluent
Nitrogen, Ammonia Total (as
11/12/16
5 X week
mg/I
Frequency Violation
No Action, BPJ
N) - Concentration
11 - 2016
001
Effluent
Nitrogen, Ammonia Total (as
11/26/16
5 X week
mg/I
Frequency Violation
No Action, BPJ
N) - Concentration
12 - 2016
001
Effluent
Nitrogen, Ammonia Total (as
12/24/16
5 X week
mg/I
Frequency Violation
No Action, BPJ
N) - Concentration
12 - 2016
001
Effluent
Nitrogen, Ammonia Total (as
12/31/16
5 X week
mg/I
Frequency Violation
No Action, BPJ
N) - Concentration
01 - 2017
001
Effluent
Nitrogen, Ammonia Total (as
01/07/17
5 X week
mg/I
Frequency Violation
No Action, BPJ
N) - Concentration
01 -2017
001
Effluent
Nitrogen, Ammonia Total (as
01/21/17
5 X week
mg/I
Frequency Violation
No Action, BPJ
N) - Concentration
04 - 2017
001
Effluent
Nitrogen, Ammonia Total (as
04/22/17
5 X week
mg/I
Frequency Violation
No Action, BPJ
N) - Concentration
06 - 2017
001
Effluent
Nitrogen, Ammonia Total (as
06/03/17
5 X week
mg/I
Frequency Violation
No Action, Facility
N) - Concentration
Reporting Error
06 - 2017
001
Effluent
Nitrogen, Ammonia Total (as
06/17/17
5 X week
mg/I
Frequency Violation
No Action, BPJ
N) - Concentration
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
MONITORING REPORT(MR) VIOLATIONS for:
Permit: NCO021644 MRS Between 10 - 2015 and 9 - 2018 Region: %
Facility Name: % Param Name % County: %
Major Minor: %
Report Date: 11/27/18 Page: 14 of 17
Violation Category:% Program Category: 0/a
49r
Subbasin:% IN
Violation Action: 0a
PERMIT: NCO021644
FACILITY: Town of La Grange - La Grange WWTP
COUNTY: Lenoir REGION: Washington
Monitoring Violation
MONITORING OUTFALL/
VIOLATION
UNIT OF
CALCULATED %
REPORT
PPI
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT VALUE Over VIOLATION TYPE
VIOLATION ACTION
07 -2017
001
Effluent
Nitrogen, Ammonia Total (as
07/08/17
5 X week
mg/I
Frequency Violation
No Action, Facility
N) - Concentration
Reporting Error
09 -2017
001
Effluent
Nitrogen, Ammonia Total (as
09/09/17
5 X week
mg/I
Frequency Violation
No Action, Facility
N) - Concentration
Reporting Error
02 - 2016
001
Effluent
Nitrogen, Total - Quantity
02/29/16
Monthly
Ib/mon
Frequency Violation
No Action, BPJ
(Monthly)
04 - 2016
001
Effluent
Nitrogen, Total - Quantity
04/30/16
Monthly
Ib/mon
Frequency Violation
No Action, BPJ
(Monthly)
05 - 2016
001
Effluent
Nitrogen, Total - Quantity
05/31/16
Monthly
Ib/mon
Frequency Violation
No Action, Facility
(Monthly)
Reporting Error
12 - 2017
001
Effluent
Nitrogen, Total - Quantity
12/31/17
Annually
Ibs/yr
Frequency Violation
No Action, Facility
(Yearly)
Reporting Error
07 - 2016
001
Effluent
Oxygen, Dissolved (DO)
07/09/16
5 X week
mg/I
Frequency Violation
No Action, Facility
Reporting Error
09 - 2016
001
Effluent
Oxygen, Dissolved (DO)
09/10/16
5 X week
mg/I
Frequency Violation
No Action, BPJ
11 - 2016
001
Effluent
Oxygen, Dissolved (DO)
11/12/16
5 X week
mg/I
Frequency Violation
No Action, BPJ
11 - 2016
001
Effluent
Oxygen, Dissolved (DO)
11/26/16
5 X week
mg/I
Frequency Violation
No Action, BPJ
12 - 2016
001
Effluent
Oxygen, Dissolved (DO)
12/24/16
5 X week
mg/I
Frequency Violation
No Action, BPJ
12 - 2016
001
Effluent
Oxygen, Dissolved (DO)
12/31 /16
5 X week
mg/I
Frequency Violation
No Action, BPJ
01 - 2017
001
Effluent
Oxygen, Dissolved (DO)
01/07/17
5 X week
mg/I
Frequency Violation
No Action, BPJ
01 - 2017
001
Effluent
Oxygen, Dissolved (DO)
01/21/17
5 X week
mg/I
Frequency Violation
No Action, BPJ
04 - 2017
001
Effluent
Oxygen, Dissolved (DO)
04/22/17
5 X week
mg/I
Frequency Violation
No Action, BPJ
06 - 2017
001
Effluent
Oxygen, Dissolved (DO)
06/03/17
5 X week
mg/I
Frequency Violation
No Action, Facility
Reporting Error
07 - 2017
001
Effluent
Oxygen, Dissolved (DO)
07/08/17
5 X week
mg/I
Frequency Violation
No Action, Facility
Reporting Error
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
MONITORING REPORT(MR) VIOLATIONS for:
Permit: NCO021644 MRS Between 10 - 2015 and 9 - 2018 Region: %
Facility Name: % Param Name % County: %
Major Minor: %
Report Date: 11/27/18 Page: 15 of 17
Violation Category:% Program Category: 0/a
49r
Subbasin:% IN
Violation Action: 0a
PERMIT: NCO021644
FACILITY: Town of La Grange - La Grange WWTP
COUNTY: Lenoir REGION: Washington
Monitoring Violation
MONITORING OUTFALL/
VIOLATION
UNIT OF
CALCULATED %
REPORT
PPI
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT VALUE Over VIOLATION TYPE
VIOLATION ACTION
09 -2017
001
Effluent
Oxygen, Dissolved (DO)
09/09/17
5 X week
mg/I
Frequency Violation
No Action, Facility
Reporting Error
07 - 2016
001
Effluent
pH
07/09/16
5 X week
su
Frequency Violation
No Action, Facility
Reporting Error
09 - 2016
001
Effluent
pH
09/10/16
5 X week
su
Frequency Violation
No Action, BPJ
11 - 2016
001
Effluent
pH
11/12/16
5 X week
su
Frequency Violation
No Action, BPJ
11 - 2016
001
Effluent
pH
11/26/16
5 X week
su
Frequency Violation
No Action, BPJ
12 - 2016
001
Effluent
pH
12/24/16
5 X week
su
Frequency Violation
No Action, BPJ
12 - 2016
001
Effluent
pH
12/31/16
5 X week
su
Frequency Violation
No Action, BPJ
01 - 2017
001
Effluent
pH
01/07/17
5 X week
su
Frequency Violation
No Action, BPJ
01 - 2017
001
Effluent
pH
01/21/17
5 X week
su
Frequency Violation
No Action, BPJ
04 - 2017
001
Effluent
pH
04/22/17
5 X week
su
Frequency Violation
No Action, BPJ
06 - 2017
001
Effluent
pH
06/03/17
5 X week
su
Frequency Violation
No Action, Facility
Reporting Error
07 - 2017
001
Effluent
pH
07/08/17
5 X week
su
Frequency Violation
No Action, Facility
Reporting Error
09 - 2017
001
Effluent
pH
09/09/17
5 X week
su
Frequency Violation
No Action, Facility
Reporting Error
07 -2016
001
Effluent
Solids, Total Suspended -
07/09/16
5 X week
mg/I
Frequency Violation
No Action, Facility
Concentration
Reporting Error
09 _2016
001
Effluent
Solids, Total Suspended -
09/10/16
5 X week
mg/I
Frequency Violation
No Action, BPJ
Concentration
11 -2016
001
Effluent
Solids, Total Suspended -
11/12/16
5 X week
mg/I
Frequency Violation
No Action, BPJ
Concentration
11 -2016
001
Effluent
Solids, Total Suspended -
11/26/16
5 X week
mg/I
Frequency Violation
No Action, BPJ
Concentration
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
MONITORING REPORT(MR) VIOLATIONS for:
Permit: NCO021644 MRS Between 10 - 2015 and 9 - 2018 Region: %
Facility Name: % Param Name % County: %
Major Minor: %
Report Date: 11/27/18 Page: 16 of 17
Violation Category:% Program Category: 0/a
49r
Subbasin:% IN
Violation Action: 0a
PERMIT: NCO021644
FACILITY: Town of La Grange - La Grange WWTP
COUNTY: Lenoir REGION: Washington
Monitoring Violation
MONITORING
OUTFALL/
VIOLATION
UNIT OF
CALCULATED %
REPORT
PPI
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT VALUE Over VIOLATION TYPE
VIOLATION ACTION
12 -2016
001
Effluent
Solids, Total Suspended -
12/24/16
5 X week
mg/I
Frequency Violation
No Action, BPJ
Concentration
12 -2016
001
Effluent
Solids, Total Suspended -
12/31/16
5 X week
mg/I
Frequency Violation
No Action, BPJ
Concentration
01 - 2017
001
Effluent
Solids, Total Suspended -
01/07/17
5 X week
mg/I
Frequency Violation
No Action, BPJ
Concentration
01 - 2017
001
Effluent
Solids, Total Suspended -
01/21/17
5 X week
mg/I
Frequency Violation
No Action, BPJ
Concentration
04 - 2017
001
Effluent
Solids, Total Suspended -
04/22/17
5 X week
mg/I
Frequency Violation
No Action, BPJ
Concentration
06 - 2017
001
Effluent
Solids, Total Suspended -
06/03/17
5 X week
mg/I
Frequency Violation
No Action, Facility
Concentration
Reporting Error
07 - 2017
001
Effluent
Solids, Total Suspended -
07/08/17
5 X week
mg/I
Frequency Violation
No Action, Facility
Concentration
Reporting Error
09 - 2017
001
Effluent
Solids, Total Suspended -
09/09/17
5 X week
mg/I
Frequency Violation
No Action, Facility
Concentration
Reporting Error
07 - 2016
001
Effluent
Temperature, Water Deg.
07/09/16
5 X week
deg c
Frequency Violation
No Action, Facility
Centigrade
Reporting Error
09 - 2016
001
Effluent
Temperature, Water Deg.
09/10/16
5 X week
deg c
Frequency Violation
No Action, BPJ
Centigrade
11 - 2016
001
Effluent
Temperature, Water Deg.
11/12/16
5 X week
deg c
Frequency Violation
No Action, BPJ
Centigrade
11 -2016
001
Effluent
Temperature, Water Deg.
11/26/16
5 X week
deg c
Frequency Violation
No Action, BPJ
Centigrade
12 - 2016
001
Effluent
Temperature, Water Deg.
12/24/16
5 X week
deg c
Frequency Violation
No Action, BPJ
Centigrade
12 - 2016
001
Effluent
Temperature, Water Deg.
12/31/16
5 X week
deg c
Frequency Violation
No Action, BPJ
Centigrade
01 - 2017
001
Effluent
Temperature, Water Deg.
01/07/17
5 X week
deg c
Frequency Violation
No Action, BPJ
Centigrade
01 - 2017
001
Effluent
Temperature, Water Deg.
01/21/17
5 X week
deg c
Frequency Violation
No Action, BPJ
Centigrade
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
MONITORING REPORT(MR) VIOLATIONS for:
Permit: NCO021644 MRS Between 10 - 2015 and 9 - 2018 Region: %
Facility Name: % Param Name % County: %
Major Minor: %
Report Date: 11/27/18 Page: 17 of 17
Violation Category:% Program Category: 0/a
49r
Subbasin:% IN
Violation Action: 0a
PERMIT: NCO021644 FACILITY: Town of La Grange - La Grange WWTP COUNTY: Lenoir REGION: Washington
Monitoring Violation
MONITORING OUTFALL/ VIOLATION UNIT OF CALCULATED %
REPORT PPI LOCATION PARAMETER DATE FREQUENCY MEASURE LIMIT VALUE Over VIOLATION TYPE VIOLATION ACTION
04 _2017
001
Effluent
Temperature, Water Deg.
04/22/17
5 X week
deg c
Frequency Violation
No Action, BPJ
Centigrade
06 -2017
001
Effluent
Temperature, Water Deg.
06/03/17
5 X week
deg c
Frequency Violation
No Action, Facility
Centigrade
Reporting Error
07 -2017
001
Effluent
Temperature, Water Deg.
07/08/17
5 X week
deg c
Frequency Violation
No Action, Facility
Centigrade
Reporting Error
09 -2017
001
Effluent
Temperature, Water Deg.
09/09/17
5 X week
deg c
Frequency Violation
No Action, Facility
Centigrade
Reporting Error
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
United States Environmental Protection Agency
Form Approved.
EPA Washington, D.C. 20460
OMB No. 2040-0057
Water Compliance Inspection Report
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 IN I 2 IF I 3 I NCO021644 111 12 I 18/12/10 I17 18 I S J 19 L G] 201 I
211111 I I I I I I II I I I I I I I I I I I I I I I I I I I I I I I II I I I I I f6
Inspection
Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---------------------- Reserved -------------------
671
70I�_71 I 72 r 73I i74 751 I I I I
80
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
Entry Time/Date
Permit Effective Date
POTW name and NPDES oermit Number)
01:25PM 18/12/10
13/07/01
La Grange WWTP
700 E King St
Exit Time/Date
Permit Expiration Date
La Grange NC 285510368
02:50PM 18/12/10
18/01/31
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
James Wesley Sutton/ORC/252-566-3295/
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
John P Craft,PO Box 368 La Grange NC 28551/Town
Manager/252-566-3186/2525662201 No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit 0 Flow Measurement Operations & Maintenance Records/Reports
Sludge Handling Disposal 0 Facility Site Review Pretreatment Effluent/Receiving Waters
Laboratory
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date
Stewart White WARO WQ//252-948-3940/
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page#
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
NPDES yr/mo/day Inspection Type
NC0021644 I11 121 18/12/10 117 18 JCJ
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
ORC Wesley Sutton was present for inspection. ORC stated that they have recieved approximately 80
inches of rainfall this year. The WWTP is having some issues meeting flow limits. The Effluent coming
out of the plant looks good.
Reviewed eDMR's for August 2018 and October 2018. Records were neatly kept and organized.
Page#
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
Permit: NCO021644 Owner - Facility: La Grange WWTP
Inspection Date: 12/10/2018 Inspection Type: Compliance Evaluation
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? 0 ❑ ❑ ❑
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable ❑ ❑ ❑
Solids, pH, DO, Sludge Judge, and other that are applicable?
Comment:
Permit
Yes No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new
0
❑
❑
❑
application?
Is the facility as described in the permit?
0
❑
❑
❑
# Are there any special conditions for the permit?
0
❑
❑
❑
Is access to the plant site restricted to the general public?
0
❑
❑
❑
Is the inspector granted access to all areas for inspection?
0
❑
❑
❑
Comment: Permit Expired January 31, 2018.
Record Keeping
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)?
0
❑
❑
❑
Are analytical results consistent with data reported on DMRs?
0
❑
❑
❑
Is the chain -of -custody complete?
0
❑
❑
❑
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?
❑
❑
❑
Has the facility submitted its annual compliance report to users and DWQ?
❑
❑
❑
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator
❑
❑
❑
on each shift?
Is the ORC visitation log available and current?
❑
❑
❑
Is the ORC certified at grade equal to or higher than the facility classification?
❑
❑
❑
Is the backup operator certified at one grade less or greater than the facility classification?
❑
❑
❑
Is a copy of the current NPDES permit available on site?
❑
❑
❑
Page# 3
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
Permit: NC0021644 Owner - Facility: La Grange WWTP
Inspection Date: 12/10/2018 Inspection Type: Compliance Evaluation
Record Keeping Yes No NA NE
Facility has copy of previous year's Annual Report on file for review? 0 ❑ ❑ ❑
Comment:
Effluent Pipe
Yes No NA NE
Is right of way to the outfall properly maintained?
0
❑
❑
❑
Are the receiving water free of foam other than trace amounts and other debris?
❑
❑
❑
If effluent (diffuser pipes are required) are they operating properly?
❑
❑
0
❑
Comment:
Flow Measurement - Influent
Yes No NA NE
# Is flow meter used for reporting?
❑
0
❑
❑
Is flow meter calibrated annually?
0
❑
❑
❑
Is the flow meter operational?
0
❑
❑
❑
(If units are separated) Does the chart recorder match the flow meter?
❑
❑
0
❑
Comment: Influent Meter calibrated 7/3/18.
Flow Measurement - Effluent
Yes No NA NE
# Is flow meter used for reporting?
0
❑
❑
❑
Is flow meter calibrated annually?
0
❑
❑
❑
Is the flow meter operational?
0
❑
❑
❑
(If units are separated) Does the chart recorder match the flow meter?
❑
❑
0
❑
Comment: Effluent Meter calibrated 7/3/18.
Aerobic Digester
Yes No NA NE
Is the capacity adequate?
0
❑
❑
❑
Is the mixing adequate?
0
❑
❑
❑
Is the site free of excessive foaming in the tank?
0
❑
❑
❑
# Is the odor acceptable?
0
❑
❑
❑
# Is tankage available for properly waste sludge?
0
❑
❑
❑
Comment: Synagrow hauls once / year.
Pump Station - Influent Yes No NA NE
Is the pump wet well free of bypass lines or structures? 0 ❑ ❑ ❑
Page# 4
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
Permit: NCO021644
Inspection Date: 12/10/2018
Owner - Facility: La Grange WWTP
Inspection Type: Compliance Evaluation
Pump Station - Influent
Yes No NA NE
Is the wet well free of excessive grease?
0
❑
❑
❑
Are all pumps present?
0
❑
❑
❑
Are all pumps operable?
0
❑
❑
❑
Are float controls operable?
❑
❑
❑
Is SCADA telemetry available and operational?
❑
0
❑
❑
Is audible and visual alarm available and operational?
0
❑
❑
❑
Comment: SCADA down since June per ORC
Bar Screens
Yes No NA NE
Type of bar screen
a.Manual
b.Mechanical
Are the bars adequately screening debris?
0
❑
❑
❑
Is the screen free of excessive debris?
0
❑
❑
❑
Is disposal of screening in compliance?
0
❑
❑
❑
Is the unit in good condition?
0
❑
❑
❑
Comment:
Grit Removal
Yes No NA NE
Type of grit removal
a.Manual
❑
b.Mechanical
Is the grit free of excessive organic matter?
0
❑
❑
❑
Is the grit free of excessive odor?
0
❑
❑
❑
# Is disposal of grit in compliance?
0
❑
❑
❑
Comment: Garbage Truck picks up containers.
Secondary Clarifier
Yes No NA NE
Is the clarifier free of black and odorous wastewater?
0
❑
❑
❑
Is the site free of excessive buildup of solids in center well of circular clarifier?
0
❑
❑
❑
Are weirs level?
0
❑
❑
❑
Is the site free of weir blockage?
0
❑
❑
❑
Is the site free of evidence of short-circuiting?
0
❑
❑
❑
Page# 5
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
Permit: NCO021644 Owner - Facility:
Inspection Date: 12/10/2018 Inspection Type:
La Grange WWTP
Compliance Evaluation
Secondary Clarifier
Yes No NA NE
Is scum removal adequate?
0
❑
❑
❑
Is the site free of excessive floating sludge?
0
❑
❑
❑
Is the drive unit operational?
0
❑
❑
❑
Is the return rate acceptable (low turbulence)?
0
❑
❑
❑
Is the overflow clear of excessive solids/pin floc?
0
❑
❑
❑
Is the sludge blanket level acceptable? (Approximately'/4 of the sidewall depth)
❑
❑
❑
Comment:
Oxidation Ditches
Yes No NA NE
Are the aerators operational?
0
❑
❑
❑
Are the aerators free of excessive solids build up?
0
❑
❑
❑
# Is the foam the proper color for the treatment process?
0
❑
❑
❑
Does the foam cover less than 25% of the basin's surface?
0
❑
❑
❑
Is the DO level acceptable?
0
❑
❑
❑
Are settleometer results acceptable (> 30 minutes)?
❑
❑
❑
Is the DO level acceptable?(1.0 to 3.0 mg/1)
0
❑
❑
❑
Are settelometer results acceptable?(400 to 800 ml/I in 30 minutes)
❑
❑
❑
Comment:
Filtration (High Rate Tertiary)
Yes No NA NE
Type of operation:
Is the filter media present?
❑
❑
❑
Is the filter surface free of clogging?
❑
❑
❑
Is the filter free of growth?
❑
❑
❑
Is the air scour operational?
❑
❑
❑
Is the scouring acceptable?
❑
❑
❑
Is the clear well free of excessive solids and filter media?
❑
❑
❑
Comment: Effluent looks good coming out of filter.
Disinfection -Gas
Yes No NA NE
Are cylinders secured adequately?
0
❑
❑
❑
Are cylinders protected from direct sunlight?
0
❑
❑
❑
Is there adequate reserve supply of disinfectant?
0
❑
❑
❑
Page# 6
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
Permit: NCO021644 Owner - Facility: La Grange WWTP
Inspection Date: 12/10/2018 Inspection Type: Compliance Evaluation
Disinfection -Gas
Yes No NA NE
Is the level of chlorine residual acceptable?
0
❑
❑
❑
Is the contact chamber free of growth, or sludge buildup?
0
❑
❑
❑
Is there chlorine residual prior to de -chlorination?
0
❑
❑
❑
Does the Stationary Source have more than 2500 Ibs of Chlorine (CAS No. 7782-50-5)?
❑
❑
0
❑
If yes, then is there a Risk Management Plan on site?
❑
❑
0
❑
If yes, then what is the EPA twelve digit ID Number? (1000- - )
If yes, then when was the RMP last updated?
Comment: Uses Sulfur Dioxide for de -chlorination.
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?
0
❑
❑
❑
Was generator tested & operational during the inspection?
❑
0
❑
❑
Do the generator(s) have adequate capacity to operate the entire wastewater site?
0
❑
❑
❑
Is there an emergency agreement with a fuel vendor for extended run on back-up power?
❑
❑
❑
Is the generator fuel level monitored?
0
❑
❑
❑
Comment: Generator comes on every Monday 10am.
Pumps-RAS-WAS
Yes No NA NE
Are pumps in place?
0
❑
❑
❑
Are pumps operational?
0
❑
❑
❑
Are there adequate spare parts and supplies on site?
0
❑
❑
❑
Comment:
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?
0
❑
❑
❑
# Is the facility using a contract lab?
0
❑
❑
❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
0
❑
❑
❑
Celsius)?
Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees?
❑
❑
0
❑
Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees?
❑
❑
0
❑
Page# 7
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
Permit: NC0021644 Owner - Facility: La Grange WWTP
Inspection Date: 12/10/2018 Inspection Type: Compliance Evaluation
Laboratory
Comment: Lab was clean. The facility uses Environment 1, Inc.
Yes No NA NE
Page#
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
REQUIRED DATA ENTRY
Table 1. Project Information
]CHECK IF HQW OR ORW WQS
Facility Name
Town of La Grange
WWTP/WTP Class
WW-4
NPDES Permit
NCO021644
Outfall
001
Flow, Qw (1
0.750
Receiving Stream
UT to Mosely Creek
030202020205
HUC Number
Stream Class
C;Sw,NSW
]Apply WS Hardness WQC
70110s (cfs)
0.00
70110w (cfs)
0.00
30Q2 (cfs)
0.08
0.53
QA (cfs)
0.00
1Q10s (cfs)
Effluent Hardness
25 mg/L (Avg)
Upstream Hardness _
_ _ _ _ _ _ _ 25 mg/L (Avg)
Combined Hardness_ Chronic
25 mg/L
Combined Hardness Acute
_ _ _ _ _ _ _ _
25 mg/L
B I M S data 05-2016 7o 7r2F18 (58 most recent data
points); default hardness of 25 ni for effluent and
Data Source(s)
❑CHECK TO APPLY MODEL
upstream
Follow directions for data entry. In some cases a
comment menu list the available choices or a
dropdown menu will provide a list you may select
from. Error message occur if data entry does not
meet input criteria.
Par01
Par02
Par03
Par04
Par05
Par06N
Par07
Par08
Par09
Par10
Par11
Par12
Par13
Par14
Par15
Par16
Par17
Par18
Par19
Par20
Par21
Par22
Par23
Par24
Par25
Table 2. Parameters of Concern
Name w4s Type Chronic Modifier Acute PQL Units
Arsenic
Aquactic Life
C
150
FW
340
ug/L
Arsenic
Human Health
Water Supply
C
10
HH/WS
N/A
ug/L
Beryllium
Aquatic Life
NC
6.5
FW
65
ug/L
Cadmium
Aquatic Life
NC
0.5899
FW
3.2396
ug/L
Chlorides
Aquatic Life
NC
230
FW
li Chlorinated Phenolic Compounds
Water supply
NC
1
A
ug/L
Total Phenolic Compounds
Aquatic Life
NC
300
A
ug/L
Chromium III
Aquatic Life
NC
117.7325
FW
905.0818
ug/L
Chromium VI
Aquatic Life
NC
11
FW
16
lag/L
Chromium, Total
Aquatic Life
NC
N/A
FW
N/A
lag/L
Copper
Aquatic Life
INC
7.8806
FW
10.4720
ug/L
Cyanide
Aquatic Life
NC
5
FW
22
10
ug/L
Fluoride
Aquatic Life
NC
1,800
FW
ug/L
Lead
Aquatic Life
NC
2.9416
FW
75.4871
ug/L
Mercury
Aquatic Life
NC
12
FW
0.5
ng/L
Molybdenum
Human Health
NC
2000
HH
ug/L
Nickel
Aquatic Life
NC
37.2313
FW
335.2087
lag/L
Nickel
Water Supply
NC
25.0000
WS
N/A
lag/L
Selenium
Aquatic Life
NC
5
FW
56
ug/L
Silver
Aquatic Life
NC
0.06
FW
0.2964
ug/L
Zinc
Aquatic Life
NC
126.7335
FW
125.7052
ug/L
NCO021644 RPA Zn 11262018, input
12/20/2018
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
REASONABLE POTENTIAL ANALYSIS
H1
H2
Use "PASTE SPECIAL
Use "PASTE SPECIAL
Effluent Hardness
values" then "COPY"
Upstream Hardness
values" then "COPY"
. Maximum data
. Maximum data
points = 58
points = 58
Date Data BDL=1/2DL Results
Date
Data BDL=1/2DL Results
1
25 25 Std Dev.
N/A
1
25 25 Std Dev.
N/A
2
Mean
25.0000
2
Mean
25.0000
3
C.V.
0.0000
3
C.V.
0.0000
4
n
1
4
n
1
5
10th Per value
25.00 mg/L
5
10th Per value
25.00 mg/L
6
Average Value
25.00 mg/L
6
Average Value
25.00 mg/L
7
Max. Value
25.00 mg/L
7
Max. Value
25.00 mg/L
8
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
NCO021644 RPA Zn 11262018, data
-2- 12/20/2018
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
REASONABLE POTENTIAL ANALYSIS
Par21
Use "PASTE SPECIAL
Zinc
Values" then "COPY"
. Maximum data
points = 58
Date
Data
BDL=1/2DL
Results
1
5/6/2016
41
41
Std Dev.
47.9928
2
5/20/2016
41
41
Mean
38.2414
3
6/10/2016
32
32
C.V.
1.2550
4
6/24/2016
46
46
n
58
5
7/8/2016
53
53
6
7/22/2016
41
41
Mult Factor =
1.00
7
8/5/2016
68
68
Max. Value
385.0 ug/L
8
8/19/2016
44
44
Max. Pred Cw
385.0 ug/L
9
9/9/2016
21
21
10
9/23/2016
19
19
11
10/7/2016
19
19
12
10/21/2016
11
11
13
11/4/2016
19
19
14
11/18/2016
25
25
15
12/9/2016
42
42
16
12/22/2016
34
34
17
1 /6/2017
29
29
18
1 /20/2017
35
35
19
2/3/2017
38
38
20
2/17/2017
43
43
21
3/10/2017
54
54
22
3/24/2017
44
44
23
4/7/2017
32
32
24
4/21/2017
46
46
25
5/5/2017
20
20
26
5/19/2017
51
51
27
6/9/2017
17
17
28
6/23/2017
27
27
29
7/7/2017
18
18
30
7/21 /2017
20
20
31
8/4/2017
22
22
32
8/18/2017
27
27
33
9/8/2017
29
29
34
9/22/2017
24
24
35
10/6/2017
385
385
36
10/20/2017
22
22
37
11/9/2017
25
25
38
11/22/2017
27
27
39
12/8/2017
31
31
40
12/21 /2017
42
42
41
1/5/2018
61
61
42
1/19/2018
35
35
43
2/9/2018
30
30
44
2/23/2018
33
33
45
3/9/2018
39
39
46
3/23/2018
38
38
47
4/6/2018
57
57
48
4/20/2018
32
32
49
5/4/2018
34
34
50
5/18/2018
33
33
51
6/8/2018
22
22
52
6/22/2018
21
21
53
7/6/2018
19
19
54
7/20/2018
29
29
55
8/10/2018
18
18
56
8/24/2018
21
21
57
9/7/2018
20
20
58
9/21 /2018
12
12
NC0021644 RPA Zn 11262018, data
- 3 - 12/20/2018
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
Town of LaGrange
NCO021644 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
Qw (MGD) =
0.7500
WWTP/WTP Class:
WW-4
1Q10S (cfs)=
0.00
IWC% @ 1Q10S =
100
7Q l OS (cfs) =
0.00
IWC% @ 7Q l OS =
100
7QIOW (cfs) =
0.00
IWC% @ 7Q10W =
100
30Q2 (cfs) =
0.08
IWC% @ 30Q2 =
93.56136821
Avg. Stream Flow, QA (cfs) =
0.53
IW%C @ QA =
68.68537666
Receiving Stream: UT to Mosely Creek HUC 030202020205 Stream Class:
C;Sw,NSW
Outfall 001
Qw=0.75MGD
COMBINED HARDNESS (mE/L)
Acute = 25 mg/L
Chronic = 25 mg/L
PARAMETER
TYPE
NC STANDARDS OR EPA CRITERIA
J
a
U)
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
Appli
Chronic Acute
n # Det. Max Pred Cw Allowable Cw
d
StandAcute:
125.7
RP shown - apply Monthly Monitoring with Limit
Zinc
NC
126.7335 FW 125.7052
ug/L
58 58
385.0
---------------------------------------------
Chronic: 126.7
RP shown - apply Monthly Monitoring with Limit
1 value(s) > Allowable Cw
NCO021644 RPA Zn 11262018, rpa
Page 4 of 5 12/20/2018
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
Date: 12/20/2018
FACILITY: Town of La Grange Outfall 001
NPDES PERMIT: NCO021644
Dissolved to Total Metal Calculator
In accordance with Federal Regulations, permit limitations must be written as Total Metals per 40 CFR 122.45(c)
Receiving
Receiving
Rec. Stream
NPDES
Total Suspended
Combined
Combined
Instream
Instream
Effluent
Stream
Stream
Solids
Hardness
Hardness
Wastewater
Wastewater
Upstream
Hardness
summer
summer 7Q10
1Q10
Flow Limit
Fixed Value-
chronic
Acute
Concentration
Concentration
Hardness
Average (mg/L)
Average
7Q10 (CFS)
(MGD)
MGD
MGD
(mg/L)
(mg/L)
(mg/L)
(Chronic)
(Acute)
(mg/L)
0.0000
0.0000
0.0000
0.7500
10
25.000
25.000
100.0000
100.0000
25
25
PARAMETER
_after applying hardness
equation
Translators using
Default Partition
Coefficients
(streams)
Total Metal Criteria Total Metal =
Dissolved Metal+Translator
Chronic
Acute
Chronic
Acute
lug/11
[ug/1]
[ug/1]
[ug/1]
Cadmium (d)
0.15
0.82
0.252
0.59
3.24
Cd -Trout streams
0.15
0.51
0.252
0.59
2.01
Chromium III (d)(h)
24
183
0.202
117.73
905.08
Chromium VI (d)
11
16
1.000
11.00
16.00
Chromium, Total (t)
N/A
N/A
Copper (d)(h)
2.7
3.6
0.348
7.88
10.47
Lead (d)(h)
0.54
14
0.184
2.94
75.49
Nickel (d)(h)
16
145
0.432
37.23
335.21
Ni - WS streams (t)
N/A
Silver (d)(h,acute)
0.06
0.301
1.0001
0.06
0.30
Zinc (d)(h)
1 36
361
0.2881
126.73 125.71
Beryllium EL 651 1.000 65
Arsenic (d) 3401 1.0001 �401
(d) = dissolved metal standard. See 15A NCAC 02B .0211 for more information.
(h) = hardness -dependent dissolved metal standard. See 15A NCAC 02B .0211 for more information.
(t) = based upon measurement of total recoveable metal. See 15A NCAC 02B .0211 for more information.
The Human Health standard for Nickel in Water Supply Streams is 25 mg/L which is Total Recoverable metal standard
The Human Health standard for Arsenic is 10 µg/L which is Total Recoverable metal standard.
Upstream Hard Avg (mg/L) = 25
EFF Hard Avg (mg/L) = 25
(identify parameters to PERCS Branch to maintain in facility's LTMP/STMP):
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
Permit No. NCO021644
NPDES Implementation of Instream Dissolved Metals Standards - Freshwater Standards
The NC 2007-2015 Water Quality Standard (WQS) Triennial Review was approved by the NC
Environmental Management Commission (EMC) on November 13, 2014. The US EPA subsequently
approved the WQS revisions on April 6, 2016, with some exceptions. Therefore, metal limits in draft
permits out to public notice after April 6, 2016 must be calculated to protect the new standards - as
approved.
Table 1. NC Dissolved Metals Water Quality Standards/Aquatic Life Protection
Parameter
Acute FW, µg/1
(Dissolved)
Chronic FW, µg/1
(Dissolved)
Acute SW, µg/l
(Dissolved)
Chronic SW, µg/1
(Dissolved)
Arsenic
340
150
69
36
Beryllium
65
6.5
---
---
Cadmium
Calculation
Calculation
40
8.8
Chromium III
Calculation
Calculation
---
---
Chromium VI
16
11
1100
50
Copper
Calculation
Calculation
4.8
3.1
Lead
Calculation
Calculation
210
8.1
Nickel
Calculation
Calculation
74
8.2
Silver
Calculation
0.06
1.9
0.1
Zinc
Calculation
Calculation
90
81
Table 1 Notes:
1. FW= Freshwater, SW= Saltwater
2. Calculation = Hardness dependent standard
3. Only the aquatic life standards listed above are expressed in dissolved form. Aquatic life
standards for Mercury and selenium are still expressed as Total Recoverable Metals due to
bioaccumulative concerns (as are all human health standards for all metals). It is still necessary
to evaluate total recoverable aquatic life and human health standards listed in 15A NCAC
2B.0200 (e.g., arsenic at 10 µg/1 for human health protection; cyanide at 5 µg/L and fluoride at
1.8 mg/L for aquatic life protection).
Table 2. Dissolved Freshwater Standards for Hardness -Dependent Metals
The Water Effects Ratio (WER) is equal to one unless determined otherwise under 15A
NCAC 02B .0211 Subparagraph (11)(d)
Metal
NC Dissolved Standard, µg/I
Cadmium, Acute
WER*{1.136672-[ln hardness] (0.041838)} e^{0.9151 [In hardness]-3.1485}
Cadmium, Acute Trout waters
WER* {1. 136672-[ln hardness] (0.041838)} e^{0.9151[ln hardness] -3.623 61
Cadmium, Chronic
WER*{1.101672-[ln hardness] (0.041838)} e^{0.7998[ln hardness]-4.4451}
Chromium III, Acute
WER*0.316 e^{0.8190[ln hardness]+3.7256}
Chromium III, Chronic
WER*0.860 e^{0.8190[ln hardness]+0.6848}
Copper, Acute
WER*0.960 e^{0.9422[ln hardness]-1.700}
Copper, Chronic
WER*0.960 e^{0.8545[ln hardness]-1.702}
Lead, Acute
WER*{1.46203-[ln hardness](0.145712)} • eAll .273[ln hardness] -1.460}
Lead, Chronic
WER*{1.46203-[ln hardness](0.145712)} • eAll .273[ln hardness]-4.705}
Nickel, Acute
WER*0.998 eA10.8460[ln hardness]+2.255}
Nickel, Chronic
WER*0.997 eA10.8460[ln hardness]+0.0584}
Page 1 of 4
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
Permit No. NCO021644
Silver, Acute
WER*0.85 • e^{1.72[ln hardness]-6.59}
Silver, Chronic
Not applicable
Zinc, Acute
WER*0.978 e^{0.8473[ln hardness]+0.884}
Zinc, Chronic
WER*0.986 e^{0.8473[ln hardness]+0.884}
General Information on the Reasonable Potential Analysis (RPA)
The RPA process itself did not change as the result of the new metals standards. However, application of
the dissolved and hardness -dependent standards requires additional consideration in order to establish the
numeric standard for each metal of concern of each individual discharge.
The hardness -based standards require some knowledge of the effluent and instream (upstream) hardness
and so must be calculated case -by -case for each discharge.
Metals limits must be expressed as `total recoverable' metals in accordance with 40 CFR 122.45(c). The
discharge -specific standards must be converted to the equivalent total values for use in the RPA
calculations. We will generally rely on default translator values developed for each metal (more on that
below), but it is also possible to consider case -specific translators developed in accordance with
established methodology.
RPA Permitting Guidance/WOBELs for Hardness -Dependent Metals - Freshwater
The RPA is designed to predict the maximum likely effluent concentrations for each metal of concern,
based on recent effluent data, and calculate the allowable effluent concentrations, based on applicable
standards and the critical low -flow values for the receiving stream.
If the maximum predicted value is greater than the maximum allowed value (chronic or acute), the
discharge has reasonable potential to exceed the standard, which warrants a permit limit in most cases. If
monitoring for a particular pollutant indicates that the pollutant is not present (i.e. consistently below
detection level), then the Division may remove the monitoring requirement in the reissued permit.
To perform a RPA on the Freshwater hardness -dependent metals the Permit Writer compiles the
following information:
• Critical low flow of the receiving stream, 7Q10 (the spreadsheet automatically calculates
the 1 Q 10 using the formula 1 Q 10 = 0.843 (s7Q 10, cfs) 0.993
• Effluent hardness and upstream hardness, site -specific data is preferred
• Permitted flow
• Receiving stream classification
2. In order to establish the numeric standard for each hardness -dependent metal of concern and for
each individual discharge, the Permit Writer must first determine what effluent and instream
(upstream) hardness values to use in the equations.
The permit writer reviews DMR's, Effluent Pollutant Scans, and Toxicity Test results for any
hardness data and contacts the Permittee to see if any additional data is available for instream
hardness values, upstream of the discharge.
If no hardness data is available, the permit writer may choose to do an initial evaluation using a
default hardness of 25 mg/L (CaCO3 or (Ca + Mg)). Minimum and maximum limits on the
hardness value used for water quality calculations are 25 mg/L and 400 mg/L, respectively.
If the use of a default hardness value results in a hardness -dependent metal showing reasonable
potential, the permit writer contacts the Permittee and requests 5 site -specific effluent and
upstream hardness samples over a period of one week. The RPA is rerun using the new data.
Page 2 of 4
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
Permit No. NCO021644
The overall hardness value used in the water quality calculations is calculated as follows:
Combined Hardness (chronic)
_ (Permitted Flow, cfs *Avg. Effluent Hardness, mg/L) + (s7Q10, cfs *Avg. Upstream Hardness, mg/L)
(Permitted Flow, cfs + s7Q 10, cfs)
The Combined Hardness for acute is the same but the calculation uses the IQ 10 flow.
3. The permit writer converts the numeric standard for each metal of concern to a total recoverable
metal, using the EPA Default Partition Coefficients (DPCs) or site -specific translators, if any
have been developed using federally approved methodology.
EPA default partition coefficients or the "Fraction Dissolved" converts the value for
dissolved metal at laboratory conditions to total recoverable metal at in -stream
ambient conditions. This factor is calculated using the linear partition coefficients
found in The Metals Translator: Guidance for Calculating a Total Recoverable
Permit Limit from a Dissolved Criterion (EPA 823-B-96-007, June 1996) and the
equation:
Cdiss = 1
Ctotal 1 + { [Kpo] [ss('+a)] [10-6] }
Where:
ss = in -stream suspended solids concentration [mg/1], minimum of 10 mg/L used,
and
Kpo and a = constants that express the equilibrium relationship between dissolved
and adsorbed forms of metals. A list of constants used for each hardness -dependent
metal can also be found in the RPA program under a sheet labeled DPCs.
4. The numeric standard for each metal of concern is divided by the default partition coefficient (or
site -specific translator) to obtain a Total Recoverable Metal at ambient conditions.
In some cases, where an EPA default partition coefficient translator does not exist (ie. silver), the
dissolved numeric standard for each metal of concern is divided by the EPA conversion factor to
obtain a Total Recoverable Metal at ambient conditions. This method presumes that the metal is
dissolved to the same extent as it was during EPA's criteria development for metals. For more
information on conversion factors see the June, 1996 EPA Translator Guidance Document.
5. The RPA spreadsheet uses a mass balance equation to determine the total allowable concentration
(permit limits) for each pollutant using the following equation:
Ca = (s7Q 10 + Qw) (Cwgs)—(s7Q10) (Cb)
Qw
Where: Ca = allowable effluent concentration (µg/L or mg/L)
Cwqs = NC Water Quality Standard or federal criteria (µg/L or mg/L)
Cb = background concentration: assume zero for all toxicants except NH3* (µg/L or mg/L)
Qw = permitted effluent flow (cfs, match s7Q 10)
s7Q 10 = summer low flow used to protect aquatic life from chronic toxicity and human
health through the consumption of water, fish, and shellfish from noncarcinogens (cfs)
* Discussions are on -going with EPA on how best to address background concentrations
Flows other than s7Q 10 may be incorporated as applicable:
IQ 10 = used in the equation to protect aquatic life from acute toxicity
Page 3 of 4
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
Permit No. NCO021644
QA = used in the equation to protect human health through the consumption of water,
fish, and shellfish from carcinogens
30Q2 = used in the equation to protect aesthetic quality
6. The permit writer enters the most recent 2-3 years of effluent data for each pollutant of concern.
Data entered must have been taken within four and one-half years prior to the date of the permit
application (40 CFR 122.21). The RPA spreadsheet estimates the 95th percentile upper
concentration of each pollutant. The Predicted Max concentrations are compared to the Total
allowable concentrations to determine if a permit limit is necessary. If the predicted max exceeds
the acute or chronic Total allowable concentrations, the discharge is considered to show
reasonable potential to violate the water quality standard, and a permit limit (Total allowable
concentration) is included in the permit in accordance with the U.S. EPA Technical Support
Document for Water Quality -Based Toxics Control published in 1991.
7. When appropriate, permit writers develop facility specific compliance schedules in accordance
with the EPA Headquarters Memo dated May 10, 2007 from James Hanlon to Alexis Strauss on
40 CFR 122.47 Compliance Schedule Requirements.
The Total Chromium NC WQS was removed and replaced with trivalent chromium and
hexavalent chromium Water Quality Standards. As a cost savings measure, total chromium data
results may be used as a conservative surrogate in cases where there are no analytical results
based on chromium III or VI. In these cases, the projected maximum concentration (95th %) for
total chromium will be compared against water quality standards for chromium III and
chromium VI.
9. Effluent hardness sampling and instream hardness sampling, upstream of the discharge, are
inserted into all permits with facilities monitoring for hardness -dependent metals to ensure the
accuracy of the permit limits and to build a more robust hardness dataset.
10. Hardness and flow values used in the Reasonable Potential Analysis for this permit included:
Parameter
Value
Comments (Data Source)
Average Effluent Hardness (mg/L)
[Total as, CaCO3 or (Ca+Mg)]
25 mg/L
Default value
Average Upstream Hardness (mg/L)
[Total as, CaCO3 or (Ca+Mg)]
25 mg/L
Default value
7Q10 summer (cfs)
0
NPDES Permit FilesBIMS
1Q10 (cfs)
1 0
1 RPA spreadsheet calculation
Permitted Flow (MGD)
0.750 MGD
NPDES Permit Files/BIMS
Date: 12/20/2018
Permit Writer: Derek Denard
Page 4 of 4
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
DWQ Guidance Regarding the Reduction of Monitoring Frequencies in
NPDES Permits for Exceptionally Performing Facilities
October 22, 2012
A. Purpose
In its efforts to reduce the regulatory burden upon permittees while maintaining adequate compliance
oversight over point source discharges, DWQ has developed the following guidance for the reduction
of monitoring frequencies in NPDES permits for specific target parameters. Standard minimum
NPDES monitoring frequencies are established in 15A NCAC 2B .0508 for discharges from facilities
with specific Standard Industrial Classification (SIC) categories. However, 2B .0508(b)(1) states: "If it
is demonstrated to the satisfaction of the Director that any of the tests and measurements, sampling
points, or frequency of sampling requirements, as required in this Rule for a particular SIC group, are
not applicable to the discharge of a particular water pollution control facility, or if it can be
demonstrated that the objectives of this Section can be achieved by other acceptable means then
such requirements may be waived or modified to the extent that the Director determines to be
appropriate." This document identifies criteria to be used by DWQ that satisfies the regulatory
standard for the allowance of reduced monitoring frequencies for facilities included in SIC 4952.
This guidance applies to facilities with outstanding NPDES program compliance histories, exhibiting
effluent discharges that are excellent in both quality and consistency. Such performance will
demonstrate that compliance for particular parameters can be adequately evaluated with less
monitoring. Facilities demonstrating consistent, long-term treatment performance at levels far below
effluent limitations (<50%) may be considered for a reduction in monitoring from existing permit
frequencies to a 2/week minimum frequency for the parameters BOD5, CBOD5 TSS, NH3-N and fecal
coliform/enterococci (the "target parameters").
B. Approval Criteria
Individual NPDES facilities shall submit a written request to modify their NPDES permit specifying
which parameters are to be considered for reduced monitoring . Permit holders must include with
their requests sufficient data, statistical analyses, and other information to support the justification for
reduced monitoring. NPDES permit staff shall review the application and supporting information.
Approval of reduced monitoring frequency shall be granted if all the criteria below are met:
• The facility has no more than one civil penalty assessment for permit limit violations for each
target parameter during the previous three years.
• Neither the permittee nor any of its employees have been convicted of criminal violations of the
Clean Water Act within the previous five years.
• The facility is not currently under an SOC for target parameter effluent limit noncompliance.
• The facility is not on EPA's Quarterly Noncompliance Report for target parameter limit violations.
• For BOD5, CBOD5, TSS, NH3-N and TSS, the three year arithmetic mean of effluent data must be
less than fifty percent of the monthly average permit limit. For fecal coliform or enterococci, the
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
three year geometric mean must be less than 50 percent of the monthly average permit limit. For
parameters with summer and winter limits, an annual arithmetic mean of the seasonal limits may
be used in the calculation.
• With the exception of fecal coliform or enterococci, no more than 15 daily sampling results over
the 3-year review period can be over 200% of the monthly average limit for BOD5, CBOD5, TSS,
or NH3-N . Values associated with documented impacts of extreme weather or events beyond the
control of the permittee will not be included.
• For fecal coliform or enterococci, no more than 20 daily sampling results may be over 200% of the
weekly average limit. Values associated with documented impacts of extreme weather or events
beyond the control of the permittee will not be included.
• For the four target parameters, sampling results shall not show more than two non -monthly
average limit violations during the previous year.
• Reduced effluent monitoring must not impair assessment of sensitive downstream uses, such as
endangered species.
C. Implementation
After DWQ review and approval, the facility's NPDES permit will be reissued with reduced monitoring
frequencies for qualified parameters. Additional NPDES permit requirements will include:
• Eligible facilities may be granted a reduction from existing permit monitoring frequencies to a
2/week minimum frequency for the four target parameters. Reductions will be made for both
effluent and influent sampling.
• Where monitoring is reduced to twice per week, it must occur on any two non-consecutive days
during the calendar week (Sunday through Saturday).
• Required monitoring frequency reductions establish new permit minimums for monitoring. As
always, facilities may monitor more often than required in the permit.
• If a reportable event, as defined by the permit [e.g., Part 11 (E) (6 & 9)] occurs, any facility granted
reduced monitoring frequencies will be encouraged to monitor on a daily basis until the episode is
resolved.
Monitoring frequency reduction from the minimum frequencies reductions established by the rules are
based upon consistent, exceptional performance. DWQ may revoke on a case -by -case basis these
reductions if the facility begins to perform in noncompliance with permit limits. If a facility's monitoring
reduction for a specific parameter is removed through permit modification, reconsideration of
monitoring frequency reduction will only occur three years following the revocation/permit modification
action, or at the next permit renewal.
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
Facility
Permit
Receiving Stream
Stream Index
River Basin
303(d) listed?
Data Review Summary
Monitoring Frequency Reduction Evaluation
Town of La Grange - La Grange WWTP
NCO021644
UT to Moseley Creek
27-77-2
Neuse
Comment: See attached Final 2016 Integrated Report p. 667.
Data Period of Review 10/1/2015 to 9/30/2018
Have any Civil Penalties assessed against the facility during the past 3 years?
Comment: Not since 06/10/2011. See attached Enforcement History.
Have either the Permitee or any of its employees been convicted of criminal violations of the
Clean Wate Act within the prevous five years?
Is the facility currently under an SOC for target parameter effluent limit noncomplinace?
Is the facilty on the EPA's Quarterly Noncompliance Report for target parameter limit violatons?
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
C0310 - BOD, 5-Day (20 Deg. C) - (mg/1)
Number of permit limit violations that occurred during the previous year:
Permit Limits: Summer
Monthly Av Weekly Av, M
5.01 7.5
3 Year Average
Annual arithmetic mean of seasonal limits:
%50 of monthly average limit (target)
%200 of monthly average limit (target)
Winter
Avg. Weekly Avg.
10.01 15.5 mg/I
3.205 mg/I
7.083 mg/I
3.542 mg/I
14.167 mg/I
3 year arithmetic mean < 50% of monthly average limit? IYES
# Daily Values > %200 (target) >200% of MA Limit >200% of Mean MA
[no more than 15] 1 91 0
Meets the review guidance standards for this parameter? IYES
Sorted Highest to Lowest Daily Values During Period of Review:
Notes: MA = Monthly Average Limit; Mean MA = Annual arithmetic mean of seasonal limits
Date <
Value
Monthly Avg. Limit
% of MA Limit
% of Mean MA
11 /4/2016
12.5
10.0
125.0%
176.5%
10/20/2017
11.7
5.0
234.0%
165.2%
10/17/2016
11.5
5.0
230.0%
162.4%
9/14/2017
11.4
5.0
228.0%
160.9%
10/21 /2016
11.3
5.0
226.0%
159.5%
1 /30/2018
11.1
10.0
111.0%
156.7%
10/19/2016
10.9
5.0
218.0%
153.9%
10/20/2016
10.7
5.0
214.0%
151.1 %
9/11 /2017
10.5
5.0
210.0%
148.2%
12/27/2017
10.3
10.0
103.0%
145.4%
12/28/2017
10.3
10.0
103.0%
145.4%
9/8/2017
10.2
5.0
204.0%
144.0%
10/28/2016
10
5.0
200.0%
141.2%
11 /23/2016
9.5
10.0
95.0%
134.1 %
4/28/2017
9.4
5.0
188.0%
132.7%
5/3/2017
9.4
5.0
188.0%
132.7%
3/29/2018
9.4
6.0
156.7%
132.7%
3/30/2018
9.4
7.0
134.3%
132.7%
4/25/2018
9.4
8.0
117.5%
132.7%
10/18/2016
9.3
9.0
103.3%
132.7%
4/3/2018
9.2
10.0
92.0%
132.7%
3/8/2016
9.1
11.0
82.7%
132.7%
9/12/2017
9
12.0
75.0%
132.7%
9/13/2017
9
13.0
69.2%
132.7%
9/15/2017
9
14.0
64.3%
132.7%
12/29/2017
9
15.0
60.0%
132.7%
5/2/2017
8.9
16.0
55.6%
132.7%
5/19/2017
8.9
17.0
52.4%
132.7%
6/12/2018
8.9
18.0
49.4%
132.7%
10/26/2016
8.8
19.0
46.3%
132.7%
3/28/2018
8.8
20.0
44.0%
132.7%
4/6/2018
8.7
21.0
41.4%
132.7%
1 /9/2017
8.5
22.0
38.6%
132.7%
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
13
12
11
10
9
8
7
6
S
4
3
2
1
0
CO310 - BOD, 5-Day (20 Deg. C) - (mg/1)
r1 r1 r1 r-i r-I r1 r1 rl r1 r1 r1 rl r-i r1 r1 r� r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I rl r� r1 r1 r—I rH r1 r1
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
r-I r-I r-I r-I r-I r-I r-I rl r-i r-i r-i r-I r-i r-i r-i r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I rl r-i r-i r-I r-i r-i r-i
\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
O r-I N r-I N M I�T M l0 I� W M O rH N r-I N M lqt Ln lfl r- W M O r-I N r-I N M I�t Ln 1.0 r- W M
r-I r-I r-I r1 r1 r-i r-I r-I r-I
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
C0530 - Solids, Total Suspended (TSS) - (mg/1)
Number of permit limit violations that occurred during the previous year:
Permit Limits: All Months
Monthly Avg. Weekly Avg.
30.0 45
3 Year Average
%50 of monthly average (target)
%200 of monthly avereage limit (target)
3 year arithmetic mean < 50% of monthly average limit?
# Daily Values > %200 (target) [no more than 15]
Meets the review guidance standards for this parameter?
Sorted Highest to Lowest Daily Values During Period of Review:
Notes: MA = Monthly Average Limit; Mean MA = Annual arithmetic mean of seasonal limits
Date <
Value
% of MA Limit
9/11 /2017
58
193.3%
9/13/2017
41
136.7%
4/6/2018
35
116.7%
10/10/2016
33
110.0%
12/23/2015
32.6
108.7%
9/8/2017
32
106.7%
9/12/2017
32
106.7%
10/12/2016
25
83.3%
10/13/2016
25
83.3%
9/14/2017
25
83.3%
10/7/2016
22
73.3%
10/17/2016
21
70.0%
10/11 /2016
20
66.7%
10/20/2016
19
63.3%
12/28/2017
19
63.3%
10/18/2016
18
60.0%
10/19/2016
18
60.0%
12/27/2017
18
60.0%
10/20/2015
16
53.3%
10/26/2016
16
53.3%
10/21 /2015
15.3
51.0%
9/7/2017
15.3
51.0%
9/12/2018
15
50.0%
9/15/2017
14.6
48.7%
4/3/2018
14.6
48.7%
10/21 /2016
14
46.7%
9/6/2017
14
46.7%
3/28/2018
14
46.7%
3/29/2018
14
46.7%
10/23/2015
13.3
44.3%
12/22/2015
13.3
44.3%
10/28/2016
12
40.0%
5/17/2017
10.7
35.7%
9/21 /2018
10.5
35.0%
10/14/2016
10
33.3%
1 /11 /2017
10
33.3%
mg/I
3.789 mg/I
15.0 mg/I
60.0 mg/I
YES
0
YES
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
C0530 -Solids, Total Suspended (TSS) - (mg/1)
60
55
50
45
40
35
30
25
20
15
10
5
II (IIIIIII (III IIIIIII III III IIII I III (IIII I II III III IIII II II IIII III IIIII
0 I I IIIII IIIIIII III III II I I II II IIIIIIII IIII IIIII IIIIIIII IIIII IIIII IIII II I III I III I III I I III I II I I I IIII I I III IIIII IIII IIIIIIIII IIIII IIII I � II IIII IIIIIII IIIII IIII IIIIIIIII III II I IIII IIIIIIIIIIIIIII IIII IIIIIIIIIIIIII IIIII IIIII IIIIIIIII IIII III IIIII IIIII IIII I I I II II I IIII IIIIIII IIII IIII I I III I II II I IIIIIII IIII I IIIII I I IIIIIIII II IIIIIIIII I I I IIII I I IIII IIIIIIII II II II IIIIIIIIIII IIII III IIIIIIII IIII II II III I II I III
Ln Ln Ln (.D (.0 (LD �D 910 (.0 QD QD �D QD QD t.D i\ i\ i\ r*_ i\ i\ r- r- i\ r- r- r-I 00 00 00 00 00 00 00 00 00
r-I r-I r-i r-I r-I r-I r-� r-I r-I r-i r-i r-I r-i r-i r-I r-i r-i r-I r-I r-� r-� r-I r-I r-I r-i r-i r1 r-I r1 r1 r-I r-� r-� r-I r-I r-i
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N (N N
\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-A r-A r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I
\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
O r-I N r-I N M 9:4- Lr) (.D r*-00 Q) O r-I N r-I N M zi Ln lD r,--00 a) O r-I N r-I N rn 'Cl-Ln lD r--00 O1
r-I r-I r-i r-I r-I r-I r-I r-I r-A
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
C0610 - Nitrogen, Ammonia Total (as N) - Concentration (mg/1)
Number of permit limit violations that occurred during the previous year:
Permit Limits: Summer
Monthly Avg. Weekly A�
5.0 7.5
3 Year Average
Annual arithmetic mean of seasonal limits:
%50 of monthly average limit (target)
%200 of monthly average limit (target)
Winter
Weekly Avg.
10.01 15.5
mg/I
0.427 mg/I
2.833 mg/I
1.417 mg/I
5.667 mg/I
3 year arithmetic mean < 50% of monthly average limit?
IYES
# Daily Values > %200 (target)
>200% of MA Limit
>200% of Mean MA
[no more than 15]
1
71
12
Meets the review guidance standards for this parameter?
IYES
Sorted Highest to Lowest Daily Values During Period of Review:
Notes: MA = Monthly Average Limit;
Mean MA = Annual arithmetic mean of seasonal limits
Date < Value
Monthly Avg. Limit % of MA
Limit
% of Mean MA
1 /8/2018
12.2
4.0
305.0%
430.6%
1 /10/2018
11.12
4.0
278.0%
392.5%
1 /9/2018
10.96
4.0
274.0%
386.8%
1 /11 /2018
9.68
4.0
242.0%
341.6%
1 /12/2018
8.44
4.0
211.0%
297.9%
1 /23/2018
7.96
4.0
199.0%
280.9%
1 /5/2018
7.64
4.0
191.0%
269.6%
1 /22/2018
7.61
4.0
190.3%
268.6%
1 /19/2018
7.09
4.0
177.3%
250.2%
1 /4/2018
7.01
4.0
175.3%
247.4%
1 /24/2018
6.51
4.0
162.8%
229.8%
1 /18/2018
5.68
4.0
142.0%
200.5%
2/2/2018
5.51
4.0
137.8%
194.5%
2/1 /2018
5.3
4.0
132.5%
187.1 %
1 /16/2018
5.15
4.0
128.8%
181.8%
2/6/2018
5.11
4.0
127.8%
180.4%
2/5/2018
5.03
4.0
125.8%
177.5%
1 /17/2018
4.87
4.0
121.8%
171.9%
5/2/2017
4.55
2.0
227.5%
160.6%
1 /3/2018
4.36
4.0
109.0%
153.9%
5/22/2017
4.24
2.0
212.0%
149.6%
2/7/2018
4
3.0
133.3%
141.2%
12/28/2017
3.61
4.0
90.3%
127.4%
4/26/2017
3.45
5.0
69.0%
121.8%
1 /25/2018
3.42
6.0
57.0%
120.7%
3/15/2016
3.25
7.0
46.4%
114.7%
4/27/2017
3.07
8.0
38.4%
108.4%
1 /2/2018
2.72
9.0
30.2%
96.0%
1 /8/2016
2.68
10.0
26.8%
94.6%
5/1 /2017
2.68
11.0
24.4%
94.6%
1 /10/2017
2.62
12.0
21.8%
92.5%
1 /9/2017
2.56
13.0
19.7%
90.4%
2/5/2016
2.55
14.0
18.2%
90.0%
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
13
12
11
10
9
8
7
6
5
4
3
2
1
0 i,.jL
C0610 -Nitrogen, Ammonia Total (as N) - (mg/1)
�I
r-� r-� r-� r-� r-i r-i r-� r-i r-� r-i r-� r-I r-� r-� r-� r-A r-I r-I r-i r-I r-i r-I r-i r-i r-i r-i r-I r-i r-i r-i r-� r-i r-I r-I r-� r-�
000000000000000000000000000000000000
N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-i r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r I r I r I r I r-I r-I r-I r-I r-I r1 r-I r-I
\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
0 r-I N r-I N M I11 lD I�- 00 Ol O N r-I N M gi L n lD I- 00 O1 O r-i N r-I N M qzt Ln lD I- 00 Ol
r-� r i r i r-� r-I r-I r-I r-I r-I
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
31616 - Coliform, Fecal MF, MFC Broth, 44.5 C - (#/100ml)
Number of permit limit violationsthat occurred during the previous year:
Permit Limits: All Months
Monthly Avg. Weekly Avg.
200.01 400.0
3 Year geometric mean
%50 monthly average limit (target)
%200 for weekly average limit (target)
3 year geometric mean < 50% of monthly average limit?
# Daily Values > %200 of weekly average limit (target) [no more than 20]
Meets the review guidance standards for this parameter?
Sorted Highest to Lowest Daily Values During Period of Review:
Notes: MA = Monthly Average Limit; Mean MA = Annual arithmetic mean of seasonal
limits
Date <
Value % of MA Limit
4/16/2018
2419
1210%
3/27/2018
1450
725%
11 /6/2015
1180
590%
6/13/2018
921
461 %
8/2/2018
687
344%
1 /15/2016
420
210%
9/6/2018
387
194%
2/8/2017
370
185%
3/10/2016
360
180%
8/9/2017
340
170%
6/26/2018
326
163%
10/24/2016
272
136%
6/25/2018
272
136%
3/30/2018
270
135%
8/22/2016
268
134%
7/10/2018
248
124%
9/7/2018
228
114%
3/7/2016
188
94%
3/8/2016
188
94%
3/29/2018
180
90%
9/5/2018
178
89%
9/4/2018
133
67%
10/14/2016
110
55%
9/11 /2017
100
50%
2/8/2016
74
37%
5/9/2016
54
27%
5/29/2018
50
25%
4/3/2017
47
24%
5/23/2017
44
22%
4/25/2017
42
21 %
2/25/2016
40
20%
9/28/2018
39
20%
8/10/2016
36
18%
1 /5/2018
36
18%
12/12/2016
34
17%
7/20/2017
31
16%
#/100ml
2.136 #/100ml
100.0 #/100ml
800.0 #/100ml
YES
1
YES
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
2600
2400
2200
2000
1800
1600
1400
1200
1000
800
600
400
200
31616 - Coliform, Fecal MF, MFC Broth, 44.5 C - (#/100ml)
Ln M m �D �D (D QD (LD II.D k.D k.D k.D k.D t.D (.D I- I\ r%% r- r- r*_ i\ i\ r- r- r*_ i\ o0 00 00 00 00 00 00 00 00
OOOOOOOOOOOOOO0000000OOOOcoo OOOOOOOO
N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I
\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
0 r-I N r-I N M R:T Ln lD r'- 00 Ql 0 r-I N r-I N M 9t Ln lD r�- 00 01 0 r-I N r-I N M IZI- Ln lD r.- 00 Ol
r-I r-I r-I r-I r i r i r-I r-I r-I
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
Permit: NCO021644 Facility:
Region: Washington County:
Penalty
Assessment Penalty Enforcement
Case Approved Amount Costs
Permit Enforcement History by Permit
La Grange WWTP
Lenoir
Remission Enforcement EMC
Request Conference Hearing
Damages Received Held Held
Owner:
Collection
Memo Sent
To AGO
Town of La Grange
Total Paid
Balance Due
Has
Payment
Plan
Case
Closed
LV-1999-0158 04/26/99
$1,000.00
$51.78
$1,051.78
$0.00
No
05/14/99
LV-1999-0208 05/24/99
$1,000.00
$51.78
$1,051.78
$0.00
No
08/09/99
LV-2000-0136 05/02/00
$250.00
$51.12
$301.12
$0.00
No
05/19/00
LV-2000-0298 07/24/00
$1,000.00
$48.86
$1,048.86
$0.00
No
08/15/00
LV-2005-0169 05/11/05
$250.00
$63.76
$313.76
$0.00
No
06/16/05
LV-2006-0300 08/16/06
$250.00
$63.76
$313.76
$0.00
No
08/30/06
LV-2007-0262 07/05/07
$1,000.00
$63.76
$1,063.76
$0.00
No
07/26/07
LV-2008-0056 02/05/08
$250.00
$27.36
$277.36
$0.00
No
02/21/08
LV-2010-0212 07/01/10
$2,250.00
$34.15
$2,284.15
$0.00
No
07/22/10
LV-2010-0239 07/26/10
$1,250.00
$34.15
$1,284.15
$0.00
No
08/16/10
LV-2011-0159 06/10/11
$750.00
$34.15
$784.15
$0.00
No
06/21/11
Total Cases: 11 $9,250.00
Total Penalties:
$524.63
$9,774.63
Total Penalties after
$9,774.63
$0.00
$9,774.63
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
169993 Affidavit of Publication
15498480 Kinston Free Press
Page 1 of 2 Kinston, NC
Personally appeared before me, a Notary Public of the County of Lenoir, State of North Carolina, on this the 14th day of January,
2019
of The Kinston Free Press, who being duly sworn, states that the advertisement entitled PERMIT RENEWAL NCO021644 a true
copy of which is printed herewith, appeared in The Kinston Free Press, a newspaper published in the City of Kinston, NC, County
of Lenoir, State of North Carolina, 1 day -weeks on the following dates:
January 14, 2019
NORTH CAROLINA
LENOIR COUNTY
As required by the laws of the State of North Carolina, Kinston Free Press meets the requirements of NC statute 1-597 as the
newspaper of record for Lenoir County.
PUBLIC NOTICE
North Carolina Environmental Management Commission/NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
NOTICE OF INTENT TO ISSUE A NPDES WASTEWATER PERMIT
The North Carolina Environmental Management Commission proposes to issue a NPDES wastewater discharge permit
to the person(s) listed below. Written comments regarding the proposed permit will be accepted until 30 days after the
publish date of this notice. The Director of the NC Division of Water Resources (DWR) may hold a public hearing should
there be a significant degree of public interest. Please mail comments and/or information requests to DWR at the above
address. Interested persons may visit the DWR at 512 N. Salisbury Street, Raleigh, NC to review information on file.
Additional information on NPDES permits and this notice may be found on our website:
http://deq. nc. gov/about/divisions/water-resources/water-resources-perm its/wastewater-branch/npdes-wastewater/public
-notices,9) 707-6301.
Town of La Grange applied to renew NPDES permit for their WWTP [NC0021644], East King St., La Grange, Lenoir
County, discharging treated domestic wastewater to Mosely Creek, Neuse River Basin.
January 14, 2019 (adv)
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
169993
15498480
Page 2 of 2
Affidavit of Publication
Kinston Free Press
Kinston, NC
Subscribed and sworn to this 14th day of January, 2019
X
�j _Y1Y%j
Notary Public
°
.�A�- o�missioq • S°°.
NOTARY
0 pu13L %G i U
,ytr� • Vast 5,7
LEGAL NOTICES
North Carolina Environmental Management Commission/NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
NOTICE OF INTENT TO ISSUE A NPDES WASTEWATER PERMIT
The North Carolina Environmental Management Commission proposes to
issue a NPDES wastewater discharge permit to the person(s) listed be-
low. Written comments regarding the proposed permit will be accepted
until 30 days after the publish date of this notice. The Director of the NC
Division of Water Resources (DWR) may hold a public hearing should
there be a significant degree of public interest. Please mail comments
and/or information requests to DWR at the above address. Interested per-
sons may visit the DWR at 512 N. Salisbury Street, Raleigh, NC to review
information on file. Additional information on NPDES permits and this
notice may be found on our website:
nch/npdes-wastewater/public-notices, or by calling
(919) 707-6301.
awn 'of La Grange applied to _renew NPDES permit for their WWTP
[NCO0216441, East King St., . La Grange, Lenoir County, discharging
treated domestic wastewater to Mosely Creek, Neuse River Basin.
y 14, 2019 (adv)
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
Denard, Derek
From: John P. Craft <jperaft@lagrangenc.com>
Sent: Monday, January 28, 2019 10:01 AM
To: Denard, Derek
Subject: [External] Re: Draft NPDES Permit NCO021644 - La Grange WWTP
External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
report.spam@nc.gov
Mr. Denard,
The Town has no objections to the draft permit as submitted for review. We appreciate your effort on our behalf.
Please call me with any questions.
Thanks,
John
On Jan 14, 2019, at 4:24 PM, Denard, Derek <derek.denard@ncdenr.gov> wrote:
Please find the attached draft NPDES Permit NCO021644 for La Grange WWTP. If you have questions concerning this
draft, please e-mail me or call my direct line (919) 707-3618. If you have questions concerning this draft, please e-mail
me or call my direct line (919) 707-3618.
Sincerely,
Derek C Denard
Environmental Specialist
Compliance & Expedited Permitting Unit
N.C. Division of Water Resources
N.C. Department of Environmental Quality
919 707 3618 office
919 707 9000 main DWR
derek.denard(@ncdenr.gov
N. C. Division of Water Resources
Water Quality Permitting Section - NPDES
1617 Mail Service Center
Raleigh, NC 27699-1617
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
<NC0021644 DRAFT 01092019.pdf>
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
Denard, Derek
From:
Bullock, Robert
Sent:
Thursday, January 03, 2019 9:34 AM
To:
Denard, Derek
Cc:
Tankard, Robert; White, Stewart J
Subject:
FW: Draft NPDES Permit NCO021644 - Town of La Grange WWTP
Attachments:
NCO021644 DRAFT 12282018.pdf
WaRO doesn't have any comments
Thanks,
Robbie Bullock
Environmental Specialist II
Division of Water Resources
Water Quality Regional Operations
252-948-3843 office
Robert.e.bullock(a)ncdenr.gov Email
943 Washington Square Mall
Washington NC 27889
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Tankard, Robert
Sent: Wednesday, January 02, 2019 7:26 AM
To: White, Stewart J <Stewart.White@ncdenr.gov>; Bullock, Robert <robert.e.buIlock@ncdenr.gov>
Subject: FW: Draft NPDES Permit NCO021644 - Town of La Grange WWTP
Stewart and Robbie, please review and let me know if you have any comments.
Thanks!
Robert
From: Denard, Derek
Sent: Friday, December 28, 2018 4:23 PM
To: Tankard, Robert <robert.tankard@ncdenr.gov>
Subject: Draft NPDES Permit NCO021644 - Town of La Grange WWTP
Robert,
Please find the attached copy of the draft NPDES Permit NCO021644 for the Town of La Grange WWTP. I am in the
process of having the draft peer reviewed. I plan on submitting the draft for public notice on January 9, 2019. Let me
know if you or your staff have comments.
DocuSign Envelope ID: 713338A4-3347-4D43-AA05-88EOF55E3FOD
Thanks,
Derek C Denard
Environmental Specialist
Compliance & Expedited Permitting Unit
N.C. Division of Water Resources
N.C. Department of Environmental Quality
919 707 3618 office
919 707 9000 main DWR
derek.denard anncdenr.aov
N. C. Division of Water Resources
Water Quality Permitting Section - NPDES
1617 Mail Service Center
Raleigh, NC 27699-1617
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.