89923_Charlotte_Water_MOD_Correction_Change_Pages_19Feb2021

DocuSign Envelope ID: 395E7848-FA92-4667-8E06-031 DD1 FD67DD
NPDES Permit NC0089923
WWTP Grade PC-1
PART I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.] WWTP Grade PC-1 [15A NCAC 08G .0302]
During the period beginning on the effective date of this permit and lasting until the construction phase
is completed, the Permittee is authorized to discharge via Outfall 001 and/or Outfall 002 [and/or
alternate Outfalls 001 and 002]. Such discharges shall be limited, monitored 1 and reported 2 by the
Permittee as specified below:
EFFLUENT
CHARACTERISTICS
[Parameter Code]
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location
Flow (MGD)
50050
0.108
0.108
Episodic
Recording
Effluent
pH
00400
Not < 6.0 or > 9.0 s.u.
2/Monthly
Grab
Effluent
Benzene
34030
51 µg/L*
51 µg/L*
2/Monthly
Grab
Effluent
Toluene
34010
11 µg/L
11 µg/L
2/Monthly
Grab
Effluent
Ethylbenzene
34371
97 µg/L
97 µg/L
2/Monthly
Grab
Effluent
TotalXylenes
81551
670 µg/L
670 µg/L
2/Monthly
Grab
Effluent
Acetone
81552
2000 µg/L
2000 µg/L
2/Monthly
Grab
Effluent
Tetrachloroethylene(PCE) µg/L
78389
3.3 µg/L*
3.3 µg/L*
2/Monthly
Grab
Effluent
Tnchloroethylene (TCE) µg/L
39180
30 µg/L
30 µg/L
2/Monthly
Grab
Effluent
Trichlorofluoromethane
34488
67,000
µg/L*
67,000 L
µ� *
2/Monthly
Grab
Effluent
1,2,4 trimethylbenzene (µg/L)
77222
390 µg/L
390 µg/L
2/Monthly
Grab
Effluent
1,2,3 trichloropropane
77443
0.001 µg/L*
0.001 µg/L*
2/Monthly
Grab
Effluent
1,2-Cis-Dichloroethene (DCE)
77093
720 µg/L*
720 µg/L*
2/Monthly
Grab
Effluent
1-Methylnaphalene (µg/L)
77418
450 µg/L
2.6 µg/L*
450 µg/L
2.6 µg/L*
Y 2/Monthl
Grab
Effluent
2-Methylnaphalene (µg/L)
77416
85 µg/L
200 µg/L*
85 µg/L
200 µg/L*
Y 2/Monthl
Grab
Effluent
Naphthalene (µg/L)
11417
12 µg/L
12 µg/L
2/Monthly
Grab
Effluent
Total Suspended Solids (TSS)
C0530
30.0 mg/L
45.0 mg/L
2/Monthly
Grab
Effluent
Turbidity 3
00070
50 NTU
50 NTU
2/Monthly
Grab
Effluent
Whole Effluent Toxicity (WET) 4
TAA6C
Monitoring report
2/Monthly
Grab
Effluent
TotalHardness(mg/L)
[CaCO3 or Ca + Mg]
00900
Monthly
Grab
Effluent &
Upstream
Oil and Grease (mg/L)
[EPA Method 1664 SGT-HEM]
00556
Monthly
Grab
Effluent
TotalArsenic (µg/L) **
01002
Monthly
Grab
Effluent
TotalBarium (µg/L) **
01007
Monthly
Grab
Effluent
TotalCadmium (µg/L) **
01027
Monthly
Grab
Effluent
Total Chromium (µg/L) **
C0034
Monthly
Grab
Effluent
TotalMercury (µg/L)
COMER
Monthly
Grab
Effluent
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DocuSign Envelope ID: 395E7848-FA92-4667-8E06-031 DD1 FD67DD
NPDES Permit NC0089923
WWTP Grade PC-1
EFFLUENT
CHARACTERISTICS
[Parameter Code]
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location
Total Copper (µg/L) **
01042
Monthly
Grab
Effluent
TotalLead(µg/L) **
01051
Monthly
Grab
Effluent
TotalZinc (µg/L) **
01092
Monthly
Grab
Effluent
TotalNickel (µg/L) **
01067
Monthly
Grab
Effluent
TotalPAHs 5 (µg/L)
(EPA Method 8270D)
C0456
Quarterly
Grab
Effluent
Polychlorinated biphenyls (PCBs) 5
(µg/L) (EPA Method 8280A)
39516
Quarterly
Grab
Effluent
Organics, TotalPurgeable (VOCs) 5
(µg/L) (EPA Method 624)
76029
Quarterly
Grab
Effluent
BaseNeutrals & Acids 5 (µg/L)
(Semi-VOCs, EPA Method 625)
76028
Quarterly
Grab
Effluent
Footnotes (pg.3 & 4):
1. The Permittee shall maintain onsite, available for DWR inspection, sampling logs and laboratory
analyses of internal sampling conducted to verify system treatment -component contaminant
breakthrough.
2. Beginning on the effective date of this permit, the Permittee shall submit monthly Discharge
Monitoring Reports (DMRs) electronically using the Division's eDMR application system [see
Condition A. (3.)].
3. Turbidity limit [narrative] is mandated by stream class [C].
4. Whole Effluent Toxicity (WET): Acute, Monitor Only; Monthly (Pimephales promelas) 48-hour
static test. [See Section A. (2.)].
5. Sampling and analyses shall be conducted in the first month of the calendar quarter. For eDMR
reporting of this test method, the Permittee shall enter "1" [Yes (Y) =1] if detected, and "0" [NO (N)
= 0] if not detected. Parameters detected by this method shall be recorded in the "Comments"
section, to include the compound and its reported concentration. Laboratory reports shall be kept on
file in accordance with records retention requirements, Part II. Section D. 6.
*limit based on Fish Consumption.
* * Total Hardness dependent
Conditions: Permit limits apply at end -of -pipe [NCAC 02B. 0211(21]. Compliance problems shall be
addressed through Best Management Practices [NCAC 02B. 0202].
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DocuSign Envelope ID: 395E7848-FA92-4667-8E06-031 DD1 FD67DD
NPDES Permit NC0089923
WWTP Grade PC-1
A. (2.) ACUTE TOXICITY MONTHLY - MONITOR ONLY
[15ANCAC 02B .0200et seq.]
The Permittee shall conduct acute toxicity tests monthly using protocols defined as definitive in EPA
Document EPA-821-R-02-012 entitled "Methods for Measuring the Acute Toxicity of Effluents and
Receiving Waters to Freshwater and Marine Organisms." The monitoring shall be performed as a
Fathead Minnow (Pimephales promelas) 48-hour static test. Effluent samples for self -monitoring
purposes must be obtained during representative effluent discharge and shall be performed at the
NPDES permitted final effluent discharge below all waste treatment processes.
The parameter code for Pimephales promelas is TAA6C. All toxicity testing results required as part of
this permit condition will be entered on the Effluent Discharge Form (MR-1) for the month in which it
was performed, using the appropriate parameter code. Additionally, DWR Form AT-1 (original) is to be
sent to the following address:
Attention: North Carolina Division of Water Resources
Water Sciences Section/Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section no later than°
days after the end of the reporting period for which the report is made.
Test data shall be complete and accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. Total residual chlorine
of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of
the waste stream.
Should there be no discharge of flow from the facility during any month, the Permittee will complete the
information located at the top of the aquatic toxicity (AT) test form indicating the facility name, permit
number, pipe number, county, and the month/year of the report with the notation of "No Flow" in the
comment area of the form. The report shall be submitted to the Water Sciences Section at the address
cited above.
Should any test data from either these monitoring requirements or tests performed by the North Carolina
Division of Water Quality indicate potential impacts to the receiving stream, this permit may be re-
opened and modified to include alternate monitoring requirements or limits.
NO 1'E: Failure to achieve test conditions as specified in the cited document, such as minimum control
organism survival and appropriate environmental controls, shall constitute an invalid test and will
require immediate follow-up testing to be completed no later than the last day of the month following
the month of the initial monitoring.
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DocuSign Envelope ID: 395E7848-FA92-4667-8E06-031 DD1 FD67DD
NPDES Permit NC0089923
WWTP Grade PC-1
A. (3.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
[G.S. 143-215.1(b)]
Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and program
reports. The final NPDES Electronic Reporting Rule was adopted and became effective on December
21, 2015.
NO 1'E: This special condition supplements or supersedes the following sections within Part II of this
permit (Standard Conditions for NPDES Permits):
• Section B. (11.) Signatory Requirements
• Section D. (2.) Reporting
• Section D. (6.) Records Retention
• Section E. (5.) Monitoring Reports
1. Reporting Requirements [Supersedes Section D. (2.) and Section E. (5.) (a)]
The permittee shall report discharge monitoring data electronically using the NC DWR's Electronic
Discharge Monitoring Report (eDMR) internet application.
Monitoring results obtained during the previous month(s) shall be summarized for each month and
submitted electronically using eDMR. The eDMR system allows permitted facilities to enter
monitoring data and submit DMRs electronically using the internet. The eDMR system may be
accessed at: https://deq.nc.gov/about/divisions/water-resources/edmr.
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility
being physically located in an area where less than 10 percent of the households have broadband
access, then a temporary waiver from the NPDES electronic reporting requirements may be granted
and discharge monitoring data may be submitted on paper DMR forms (MR 1, 1.1, 2, 3) or
alternative forms approved by the Director. Duplicate signed copies shall be submitted to the
following address:
NC DEQ / Division of Water Resources / Water Quality Permitting Section
A 11'ENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
See "How to Request a Waiver from Electronic Reporting" section below.
Regardless of the submission method, the first DMR is due on the last day of the month following
the issuance of the permit or in the case of a new facility, on the last day of the month following the
commencement of discharge.
Starting on December 21, 2020, the permittee must electronically report the following compliance
monitoring data and reports, when applicable:
• Sewer Overflow/Bypass Event Reports;
• Pretreatment Program Annual Reports; and
• Clean Water Act (CWA) Section 316(b) Annual Reports.
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DocuSign Envelope ID: 395E7848-FA92-4667-8E06-031 DD1 FD67DD
NPDES Permit NC0089923
WWTP Grade PC-1
➢ NPDES Electronic Reporting Rule — Phase 2 Extension. EPA is proposing to
extend the Phase 2 deadline from December 21, 2020 until at least December 21,
2023. The current compliance date will be extended if the implementation date is
extended as a final regulation change in the federal register.
The permittee may seek an electronic reporting waiver from the Division (see "How to Request a
Waiver from Electronic Reporting" section below).
2. Electronic Submissions
In accordance with 40 CFR 122.41(1)(9), the permittee must identify the initial recipient at the time
of each electronic submission. The permittee should use the EPA's website resources to identify the
initial recipient for the electronic submission.
Initial recipient of electronic NPDES information from NPDES-regulated facilities means the entity
(EPA or the state authorized by EPA to implement the NPDES program) that is the designated entity
for receiving electronic NPDES data [see 40 CFR 127.2(b)].
EPA plans to establish a website that will also link to the appropriate electronic reporting tool for
each type of electronic submission and for each state. Instructions on how to access and use the
appropriate electronic reporting tool will be available as well. Information on EPA's NPDES
Electronic Reporting Rule is found at: https://www.federalregister.gov/documents/2015/10/22/2015-
24954/national-pollutant-discharge-elimination-system-npd es-e lectronic-reporting-rule
Electronic submissions must start by the dates listed in the "Reporting Requirements" section above.
3. How to Request a Waiver from Electronic Reporting
The permittee may seek a temporary electronic reporting waiver from the Division. To obtain an
electronic reporting waiver, a permittee must first submit an electronic reporting waiver request to
the Division. Requests for temporary electronic reporting waivers must be submitted in writing to
the Division for written approval at least sixty (60) days prior to the date the facility would be
required under this permit to begin submitting monitoring data and reports. The duration of a
temporary waiver shall not exceed 5 years and shall thereupon expire. At such time, monitoring data
and reports shall be submitted electronically to the Division unless the permittee re -applies for and is
granted a new temporary electronic reporting waiver by the Division. Approved electronic reporting
waivers are not transferrable. Only permittees with an approved reporting waiver request may
submit monitoring data and reports on paper to the Division for the period that the approved
reporting waiver request is effective.
Information on eDMR and the application for a temporary electronic reporting waiver are found on
the following web page: http://deq.nc.gov/about/divisions/water-resources/edmr
4. Signatory Requirements !Supplements Section B. (11.) (b) and Supersedes Section B. (11.) (d)1
All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II,
Section B. (11.)(a) or by a duly authorized representative of that person as described in Part II,
Section B. (11.)(b). A person, and not a position, must be delegated signatory authority for eDMR
reporting purposes.
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DocuSign Envelope ID: 395E7848-FA92-4667-8E06-031 DD1 FD67DD
NPDES Permit NC0089923
WWTP Grade PC-1
For eDMR submissions, the person signing and submitting the DMR must obtain an eDMR user
account and login credentials to access the eDMR system. For more information on North
Carolina's eDMR system, registering for eDMR and obtaining an eDMR user account, please visit
the following web page:
http://deq.nc.gov/about/divisions/water-resources/edmr
Certification. Any person submitting an electronic DMR using the state's eDMR system shall make
the following certification [40 CFR 122.22]. NO OTHER STA IEMENTS OF CERTIFICATION
WILL BE ACCEP 1'ED:
"I cert, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualjed personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the information,
the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I
am aware that there are signfcant penalties for submitting false information, including the
possibility offines and imprisonment for knowing violations."
5. Records Retention [Supplements Section D. (6.)1
The permittee shall retain records of all Discharge Monitoring Reports, including eDMR
submissions. These records or copies shall be maintained for a period of at least 3 years from the
date of the report. This period may be extended by request of the Director at any time [40 CFR
122.41].
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