NC0004944_technical correction_20220818

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR. NORTH CAROLINA
Director Environmental Quality
August 18, 2022
Ms. Leah Weiss
SDC 26 WWTP, LLC
7401 Statesville Blvd
Salisbury, NC 28147
Subject: NPDES Permit NC0004944
Technical Correction
Edge Water Treating
Rowan County
Dear Permittee:
The Division recently issued an ownership change modification for the subject permit.
Your firm's contract operator notified us that the wrong effluent limits pages were in the modified
permit: limits pages from an earlier (OCPSF) version of the permit were used instead of the limits
pages from the recent modification in 2019. This modification includes the correct effluent pages.
The revised version of NC0004944 is attached.
This permit modification is issued pursuant to the requirements of North Carolina General
Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S.
Environmental Protection Agency dated October 15, 2007 (or as subsequently amended). Insert
the attached pages into your permit and discard the old pages.
If any parts, measurement frequencies or sampling requirements contained in this
modification are unacceptable to you, you have the right to an adjudicatory hearing upon written
request within thirty (30) days following receipt of this letter. This request must be in the form of
a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed
with the Office of Administrative Hearings (6714 Mail Service Center, Raleigh, North Carolina
27699-6714). Unless such demand is made, this decision shall be final and binding.
This permit is not transferable except after notice to the Division. The Division may
require modification or revocation and reissuance of the permit. This permit does not affect the
legal requirements to obtain other permits which may be required by any other Federal, State, or
Local governmental regulation. If you have any questions concerning these changes, please
contact Charles H. Weaver [[e-mail]].
ec: NPDES Unit (Laserfiche)
NORTH CAROLINA
Department of Environmental au r\ /`/
Sincerely,
J ✓V Richard E. Rogers, Jr., Director
Division of Water Resources
North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 11611 M ai I Service Center I Raleigh, North Carolina 27699-1611
919.707.9000

Permit NC0004944
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission, and the Federal Water Pollution Control Act, as amended,
SDC 26 WWTP, LLC
is hereby authorized to discharge wastewater and stormwater from a facility located at
Edge Water Treating, LLC
7401 Statesville Blvd.
Salisbury
Rowan County
to receiving waters designated as North Second Creek in the Yadkin -Pee Dee River Basin in
accordance with effluent limitations, monitoring requirements, and other conditions set forth
in Parts I, II, III, and IV hereof.
The permit shall become effective August 18, 2022.
This permit and the authorization to discharge shall expire at midnight on November 30, 2022.
Signed this day August 18, 2022.
chard E. Rogers, Jr., Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 15

Permit NC0004944
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked,
and as of this issuance, any previously issued permit bearing this number is no longer effective.
Therefore, the exclusive authority to operate and discharge from this facility arises under the permit
conditions, requirements, terms, and provisions included herein.
SDC 26 WWTP, LLC is hereby authorized to:
Continue to operate an existing Class WW-3 (2.305 MGD) activated -sludge
wastewater treatment facility located at Edge Water Treating, LLC (7401
Statesville Blvd., Salisbury) in Rowan County. The treatment system referenced
herein includes the following components:
• Bar screen and grit removal;
• Chlorine contact (sanitary wastes)
• Two covered equalization tanks;
• Three aeration basins (one out -of -service);
• Anaerobic groundwater treatment unit (out -of -service);
• Three secondary clarifiers (one out -of -service);
• Three aerated polishing ponds;
• Chemical additional facilities;
• Aerobic digestion;
• Sludge dewatering; and
• Instrumented flow measurement.
2. Discharge from said treatment works through outfall 001 at the location specified
on the attached map into North Second Creek, currently a class C water in the
Yadkin -Pee Dee River Basin.
3. Continue to discharge treated sanitary wastewater, centralized waste treatment
wastewater, and utilities wastewater as shown on the attached map.
Page 2 of 15

Permit NC0004944
Part I
Grade WW-4 Biological Water Pollution Control System
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (0.5 MGD)
[15A NCAC 02B.0400 et seq., 02B.0500 et seq.]
During the period beginning on the effective date of the permit and lasting until the twelve (12) month
average flow exceeds 0.45 MGD or the expiration date, the Permittee is authorized to discharge from
Outfall 001. Such discharges shall be limited and monitored' by the Permittee as specified below:
PARAMETER
[eDMR Code]
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location2
Flow [50050]
0.5 MGD
Continuous
Recording
Effluent
BOD5 [C0310]
101.0 pounds/day
300.0 pounds/day
3/Week
Composite
Effluent
NH3 as N [C0610]
23.0 pounds/day
46.0 pounds/day
3/Week
Composite
Effluent
Total Suspended Solids
[C0530]
21.5 pounds/day
56.4 pounds/day
3/Week
Composite
Effluent
Oil and Grease [00556]
72.4 pounds/day
242.0 pounds/day
3/Week
Composite
Effluent
Fecal Coliform [31616]
(geometric mean)
200/100 mL
400/100 mL
Weekly
Grab
Effluent
Dissolved Oxygen [00300]
Daily Average > 5.0 mg/L
3/Week
Grab
Effluent
Dissolved Oxygen [00300]
Monitor and report (mg/L)
See Note 2
Grab
U,D
Chromium (III) [01033]
21.6 pg/L
74.7 pg/L
Monthly
Grab
Effluent
Chromium (VI) [01033]
2.1 pg/L
1.6 pg/L
Monthly
Grab
Effluent
Conductivity [00094]
Monitor and report (pmho/cm)
See Note 2
Grab
U,D
Temperature [00010]
Monitor and report (°C)
See Note 2
Grab
U,D
Total Mercury3 [COMER]
47.0 (ng/L)
Quarterly
Grab
Effluent
pH [00400]
> 6.0 and < 9.0 Standard Units
3/Week
Grab
Effluent
Chronic Toxicity' [TGP3B]
Quarterly
Composite
Effluent
Total Nitrogen
90.4 pounds/day6
Weekly
Composite
Effluent
Hardness —Total as [Ca003],
mg/L
Quarterly
Composite
Effluent
Hardness —Total as [CaCO3],
mg/L5
Quarterly
Grab
U
40 CFR 437 Subpart D
See A. (2.)
Notes:
1. The permittee shall submit all discharge monitoring data electronically using the Division's eDMR
system [see A. (8)].
2. U: upstream at least 100 feet from the outfall. D: downstream approximately eight miles from the
outfall or at Highway 601. Instream samples shall be collected three times per week during the
months of June, July, August, and September and once per week during the remaining months of
the year. Instream sampling requirements are provisionally waived in light of the Permittee's
participation in the Yadkin -Pee Dee River Basin Association (the Association). All instream
sampling requirements are immediately reinstated should the Permittee cease participation in the
Association.
Page 3 of 15

Permit NC0004944
3. This is an annual average limit, based on a calendar year. The facility shall use EPA method
1631E for all effluent Mercury analyses.
4. Chronic Toxicity (Ceriodaphnia) P/F @ 10% with sampling in February, May, August, November
[see A. (7.)]. Toxicity monitoring shall coincide with metals monitoring.
5. The Permittee shall sample instream hardness, upstream of the facility's discharge. The sample
shall be representative of the hardness in the receiving stream. If the Permittee is a member of the
Monitoring Coalition Program, sampling for instream hardness may be waived as long as the
Monitoring Coalition agrees to sample hardness at the nearest upstream location, at a minimum
frequency of quarterly, and the Permittee has obtained approval from DWR-NPDES Permitting
Unit that the upstream station being monitored by the Coalition is representative of the receiving
stream for this discharge. The Permittee is responsible for submitting instream hardness test
results with its permit renewal application package. If Coalition membership is cancelled or the
Coalition terminates instream hardness sampling at the approved station, the Permittee will
immediately notify the Division and resume sampling for instream hardness, upstream of its
discharge.
6. This is an annual average allocation based on a calendar year.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS.
ANALYTICAL DATA WHICH IS LESS THAN THE PRACTICAL QUANTITATION LEVEL SHALL BE REPORTED AS
SUCH AND CONSIDERED ZERO FOR THE PURPOSES OF CALCULATING AVERAGES.
THE FACILITY SHALL NOTIFY THE MOORESVILLE REGIONAL OFFICE BEFORE ACCEPTING ANY CWT
WASTE.
A. (2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - CWT parameters
[15A NCAC 02B.0400 et seq., 02B.0500 et seq.]
During the period beginning on the effective date of the permit and lasting until the twelve (12) month
average flow exceeds 0.45 MGD or the expiration date, the Permittee is authorized to discharge from
Outfall 001. The Permittee shall comply with the effluent limitations and monitoring' frequencies
established below for Outfall 001.
➢ All CWT parameters shall be Grab samples collected Quarterly at the Effluent
➢ In the table below the WQBELS are expressed in ,ug/L and TBELS
are expressed in pounds/day.
PARAMETER
[eDMR Code]
EFFLUENT LIMITATIONS
Monthly Average
Daily Maximum
Acetone
15.2 pounds/day
19,806 pg/L
Acetophenone
0.107 pounds/day
0.217 pounds/day
Bis(2-ethylhexyl) phthalate - [QD100]
3.66 pg/L
0.409 pounds/day
2-Butanone
3.53 pounds/day
9.17 pounds/day
Butylbenzyl phthalate
0.990 pg/L
0.358 pounds/day
Carbazole
11.9 pg/L
1.14 pounds/day
o-Cresol
1.07 pounds/day
3.66 pounds/day
p-Cresol
0.391 pounds/day
1.33 pounds/day
n-Decane
0.833 pounds/day
1.81 pounds/day
Fluoranthene - [C0376]
0.051 pounds/day
0.102 pounds/day
Page 4 of 15

Permit NC0004944
n-Octadecane
0.576 pounds/day
1.12 pounds/day
Phenol
2.06 pounds/day
6.96 pounds/day
Pyridine
0.347 pounds/day
0.705 pounds/day
2,4,6 Trichlorophenol
30.7 pg/L
0.295 pounds/day
Total Cyanide — [00720]
49.5 pg/L
184.9 pg/L
Total Antimony
0.059 pounds/day
0.212 pounds/day
Total Arsenic
0.038 pounds/day
0.189 pounds/day
Total Cadmium
5.84 pg/L
0.033 pounds/day
Total Chromium — [C0034]
0.099 pounds/day
0.318 pounds/day
Total Cobalt
0.134 pounds/day
0.347 pounds/day
Total Copper [01042]
78.0 pg/L
88.0 pg/L
Total Lead — [01051]
29.1 pg/L
0.667 pounds/day
Total Nickel — [01067]
0.589 pounds/day
1.51 pounds/day
Total Molybdenum
1.84 pounds/day
1.93 pounds/day
Total Selenium
49.5 pg/L
0.335 pounds/day
Total Silver
0.594 pg/L
2.49 pg/L
Total Tin
0.069 pounds/day
0.182 pounds/day
Total Titanium
0.012 pounds/day
0.030 pounds/day
Total Vanadium
0.099 pounds/day
0.119 pounds/day
Total Zinc — [01092]
0.480 pounds/day
1.25 pounds/day
Notes:
1. The permittee shall submit all discharge monitoring data electronically using the Division's
eDMR system [see A. (8)].
The facility shall submit a completed Form 2C Part IV within 1 year from the
commencement of the CWT discharge.
Page 5 of 15

Permit NC0004944
A. (3.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (1.0 MGD)
[15A NCAC 02B.0400 et seq., 02B.0500 et seq.]
During the period beginning when the twelve (12) month average flow exceeds 0.45 MGD and lasting
until the twelve (12) month average flow exceeds 0.9 MGD or the expiration date, the Permittee is
authorized to discharge from Outfall 001. Such discharges shall be limited and monitored' by the
Permittee as specified below:
PARAMETER
[eDMR Code]
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location2
Flow [50050]
1.0 MGD
Continuous
Recording
Effluent
BOD5 [C0310]
150.0 pounds/day
300.0 pounds/day
3/Week
Composite
Effluent
NH3 as N [C0610]
23.0 pounds/day
46.0 pounds/day
3/Week
Composite
Effluent
Total Suspended Solids
[C0530]
49.8 pounds/day
130.5 pounds/day
3/Week
Composite
Effluent
Oil and Grease [00556]
167.5 pounds/day
559.8 pounds/day
3/Week
Composite
Effluent
Fecal Coliform [31616]
(geometric mean)
200/100 mL
400/100 mL
Weekly
Grab
Effluent
Dissolved Oxygen [00300]
Daily Average > 5.0 mg/L
3/Week
Grab
Effluent
Dissolved Oxygen [00300]
Monitor and report (mg/L)
See Note 2
Grab
U,D
Chromium (III)
25.1 pg/L
86.4 pg/L
Monthly
Grab
Effluent
Chromium (VI)
2.5 pg/L
1.8 ug/L
Monthly
Grab
Effluent
Conductivity [00094]
Monitor and report (pmho/cm)
See Note 2
Grab
U,D
Temperature [00010]
Monitor and report (°C)
See Note 2
Grab
U,D
Total Mercury3 [COMER]
47.0 (ng/L)
Quarterly
Grab
Effluent
pH [00400]
> 6.0 and < 9.0 Standard Units
3/Week
Grab
Effluent
Chronic Toxicity" [TGP3B]
Quarterly
Composite
Effluent
Total Nitrogen
90.4 pounds/day6
Weekly
Composite
Effluent
Hardness -Total as (CaCO3),
mg/L
Quarterly
Composite
Effluent
Hardness -Total as [CaCO3],
mg/L
Quarterly
Grab
U
40 CFR 437 Subpart D
See A. (4.)
Notes:
1. The permittee shall submit all discharge monitoring data electronically using the Division's eDMR
system [see A. (8)].
2. U: upstream at least 100 feet from the outfall. D: downstream approximately eight miles from the
outfall or at Highway 601. Instream samples shall be collected three times per week during the
months of June, July, August, and September and once per week during the remaining months of
the year. Instream sampling requirements are provisionally waived in light of the Permittee's
participation in the Yadkin -Pee Dee River Basin Association (the Association). All instream
sampling requirements are immediately reinstated should the Permittee cease participation in the
Association.
3. This is an annual average limit, based on a calendar year. The facility shall use EPA method
1631E for all effluent Mercury analyses.
Page 6 of 15

Permit NC0004944
4. Chronic Toxicity (Ceriodaphnia) P/F @ 18% with sampling in February, May, August, November
[see A. (7)]. Toxicity monitoring shall coincide with metals monitoring.
5. The Permittee shall sample instream hardness, upstream of the facility's discharge. The sample
shall be representative of the hardness in the receiving stream. If the Permittee is a member of the
Monitoring Coalition Program, sampling for instream hardness may be waived as long as the
Monitoring Coalition agrees to sample hardness at the nearest upstream location, at a minimum
frequency of quarterly, and the Permittee has obtained approval from DWR-NPDES Permitting
Unit that the upstream station being monitored by the Coalition is representative of the receiving
stream for this discharge. The Permittee is responsible for submitting instream hardness test
results with its permit renewal application package. If Coalition membership is cancelled or the
Coalition terminates instream hardness sampling at the approved station, the Permittee will
immediately notify the Division and resume sampling for instream hardness, upstream of its
discharge.
6. This is an annual average allocation based on a calendar year.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS.
ANALYTICAL DATA WHICH IS LESS THAN THE PRACTICAL QUANTITATION LEVEL SHALL BE REPORTED AS
SUCH AND CONSIDERED ZERO FOR THE PURPOSES OF CALCULATING AVERAGES.
A. (4.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - CWT parameters
[15A NCAC 02B.0400 et seq., 02B.0500 et seq.]
During the period beginning when the twelve (12) month average flow exceeds 0.45 MGD and lasting
until the twelve (12) month average flow exceeds 0.9 MGD or the expiration date, the Permittee is
ized to discharge from Outfall 001. The Permittee shall comply with the effluent limitations and
monitoring' frequencies established below for Outfall 001.
➢ All CWT parameters shall be Grab samples collected Quarterly at the Effluent
➢ In the table below the WQBELS are expressed in ,ug/L and TBELS
are expressed in pounds/day.
PARAMETER
[eDMR Code]
EFFLUENT LIMITATIONS
Monthly Average
Daily Maximum
Acetone
35.1 pounds/d
133.1 pounds/day
Acetophenone
0.248 pounds/day
0.503 pounds/day
Bis(2-ethylhexyl) phthalate - [QD100]
2.02 pg/L
0.948 pounds/day
2-Butanone
8.15 pounds/day
21.2 pounds/day
Butylbenzyl phthalate
0.545 pg/L
0.829 pounds/day
Carbazole
6.54 pg/L
2.64 pounds/day
o-Cresol
2.47 pounds/day
8.46 pounds/day
p-Cresol
0.904 pounds/day
3.08 pounds/day
n-Decane
1.93 pounds/day
4.18 pounds/day
Fluoranthene - [C0376]
0.118 pounds/day
0.237 pounds/day
n-Octadecane
1.33 pounds/day
2.59 pounds/day
Phenol
4.76 pounds/day
16.1 pounds/day
Pyridine
0.802 pounds/day
1.63 pounds/day
Page 7 of 15

Permit NC0004944
2,4,6 Trichlorophenol
15.8 pg/L
0.683 pounds/day
Total Cyanide — [00720]
27.3 pg/L
103.5 pg/L
Total Antimony
0.138 pounds/day
0.489 pounds/day
Total Arsenic
0.088 pounds/day
0.438 pounds/day
Total Cadmium
3.22 pg/L
15.2 pg/L
Total Chromium — [C0034]
0.230 pounds/day
0.736 pounds/day
Total Cobalt
0.309 pounds/day
0.802 pounds/day
Total Copper [01042]
42.9 pg/L
49.2 pg/L
Total Lead — [01051]
16.0 pg/L
1.54 pounds/day
Total Molybdenum
4.25 pounds/day
4.45 pounds/day
Total Nickel — [01067]
203.0 pg/L
3.49 pounds/day
Total Selenium
27.3 pg/L
0.776 pounds/day
Total Silver
0.327 pg/L
1.39 pg/L
Total Tin
0.162 pounds/day
0.421 pounds/day
Total Titanium
0.027 pounds/day
0.070 pounds/day
Total Vanadium
0.228 pounds/day
0.277 pounds/day
Total Zinc — [01092]
1.11 pounds/day
591.2 pg/L
Notes:
1. The permittee shall submit all discharge monitoring data electronically using the Division's
eDMR system [see A. (8)].
Page 8 of 15

Permit NC0004944
A. (5.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (2.305 MGD)
[15A NCAC 02B.0400 et seq., 02B.0500 et seq.]
During the period beginning when the twelve (12) month average flow exceeds 0.9 MGD and lasting until
the expiration date, the Permittee is authorized to discharge from Outfall 001. Such discharges shall be
limited and monitored 1 by the Permittee as specified below:
PARAMETER
[eDMR Code]
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location2
Flow [50050]
2.305 MGD
Continuous
Recording
Effluent
BOD5 [C0310]
150.0 pounds/day
300.0 pounds/day
3/Week
Composite
Effluent
NH3 as N [C0610]
23.0 pounds/day
46.0 pounds/day
3/Week
Composite
Effluent
Total Suspended Solids
[C0530]
116.3 pounds/day
304.6 pounds/day
3/Week
Composite
Effluent
Oil and Grease
391.0 pounds/day
1,306 pounds/day
3/Week
Composite
Effluent
Fecal Coliform [31616]
(geometric mean)
200/100 mL
400/100 mL
Weekly
Grab
Effluent
Dissolved Oxygen [00300]
Daily Average > 5.0 mg/L
3/Week
Grab
Effluent
Dissolved Oxygen [00300]
Monitor and report (mg/L)
See Note 2
Grab
U,D
Chromium (III)
25.4 pg/L
88.1 pg/L
Monthly
Grab
Effluent
Chromium (VI)
2.5 pg/L
1.5 pg/L
Monthly
Grab
Effluent
Conductivity [00094]
Monitor and report (pmho/cm)
See Note 2
Grab
U,D
Temperature [00010]
Monitor and report (°C)
See Note 2
Grab
U,D
Total Mercury3 [COMER]
47.0 (ng/L)
Quarterly
Grab
Effluent
pH [00400]
> 6.0 and < 9.0 Standard Units
3/Week
Grab
Effluent
Chronic Toxicity' [TGP3B]
Quarterly
Composite
Effluent
Total Nitrogen
90.4 pounds/day,
Weekly
Composite
Effluent
Hardness —Total as [Ca003],
mg/L
Quarterly
Composite
Effluent
Hardness —Total as [CaCO3],
mg/L5
Quarterly
Grab
U
40 CFR 437 Subpart D
See A. (6.)
Notes:
1. The permittee shall submit all discharge monitoring data electronically using the Division's eDMR
system [see A. (8)].
2. U: upstream at least 100 feet from the outfall. D: downstream approximately eight miles from the
outfall or at Highway 601. Instream samples shall be collected three times per week during the
months of June, July, August, and September and once per week during the remaining months of
the year. Instream sampling requirements are provisionally waived in light of the Permittee's
participation in the Yadkin -Pee Dee River Basin Association (the Association). All instream
sampling requirements are immediately reinstated should the Permittee cease participation in the
Association.
3. This is an annual average limit, based on a calendar year. The facility shall use EPA method
1631E for all effluent Mercury analyses.
Page 9 of 15

Permit NC0004944
4. Chronic Toxicity (Ceriodaphnia) P/F @ 34% with sampling in February, May, August, November
[see A. (7)]. Toxicity monitoring shall coincide with metals monitoring.
5. The Permittee shall sample instream hardness, upstream of the facility's discharge. The sample
shall be representative of the hardness in the receiving stream. If the Permittee is a member of the
Monitoring Coalition Program, sampling for instream hardness may be waived as long as the
Monitoring Coalition agrees to sample hardness at the nearest upstream location, at a minimum
frequency of quarterly, and the Permittee has obtained approval from DWR-NPDES Permitting
Unit that the upstream station being monitored by the Coalition is representative of the receiving
stream for this discharge. The Permittee is responsible for submitting instream hardness test
results with its permit renewal application package. If Coalition membership is cancelled or the
Coalition terminates instream hardness sampling at the approved station, the Permittee will
immediately notify the Division and resume sampling for instream hardness, upstream of its
discharge.
6. This is an annual average allocation based on a calendar year.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS.
ANALYTICAL DATA WHICH IS LESS THAN THE PRACTICAL QUANTITATION LEVEL SHALL BE REPORTED AS
SUCH AND CONSIDERED ZERO FOR THE PURPOSES OF CALCULATING AVERAGES.
A. (6.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - CWT parameters
[15A NCAC 02B.0400 et seq., 02B.0500 et seq.]
During the period beginning when the twelve (12) month average flow exceeds 0.9 MGD and lasting until
the expiration date, the Permittee is authorized to discharge from Outfall 001. The Permittee shall
comply with the effluent limitations and monitoring' frequencies established below for Outfall 001.
➢ Alt CWT parameters shall be Grab samples collected Quarterly at the Effluent
➢ In the table below the WQBELS are expressed in pg/L and TBELS
are expressed in pounds/day.
PARAMETER
[eDMR Code]
EFFLUENT LIMITATIONS
Monthly Average
Daily Maximum
Acetone
5,863 pg/L
310.8 pounds/day
Acetophenone
0.58 pounds/day
1.17 pounds/day
Bis(2-ethylhexyl) phthalate - [QD100]
1.08 pg/L
2.21 pounds/day
2-Butanone
19.0 pounds/day
49.5 pounds/day
Butylbenzyl phthalate
0.293 pg/L
1.93 pounds/day
Carbazole
3.52 pg/L
6.15 pounds/day
o-Cresol
5.77 pounds/day
19.8 pounds/day
p-Cresol
2.11 pounds/day
7.18 pounds/day
n-Decane
4.49 pounds/day
9.75 pounds/day
Fluoranthene - [C0376]
0.28 pounds/day
0.55 pounds/day
n-Octadecane
3.11 pounds/day
6.06 pounds/day
Phenol
11.1 pounds/day
37.6 pounds/day
Pyridine
1.87 pounds/day
3.81 pounds/day
2,4,6 Trichlorophenol
7.4 pg/L
1.59 pounds/day
Page 10 of 15

Permit NC0004944
Total Cyanide - [00720]
14.7 pg/L
57.3 pg/L
Total Antimony
0.321 pounds/day
1.14 pounds/day
Total Arsenic
0.205 pounds/day
1.02 pounds/day
Total Cadmium
1.73 pg/L
8.44 pg/L
Total Chromium - [C0034]
0.537 pounds/day
1.72 pounds/day
Total Cobalt
0.723 pounds/day
1.87 pounds/day
Total Copper [01042]
23.1 pg/L
27.3 pg/L
Total Lead - [01051]
8.62 pg/L
196.8 pg/L
Total Molybdenum
9.93 pounds/day
10.4 pounds/day
Total Nickel - [01067]
109.1 pg/L
8.17 pounds/day
Total Selenium
14.7 pg/L
146.0 pg/L
Total Silver
0.176 pg/L
0.773 pg/L
Total Tin
0.38 pounds/day
0.98 pounds/day
Total Titanium
0.063 pounds/day
0.16 pounds/day
Total Vanadium
0.53 pounds/day
0.65 pounds/day
Total Zinc - [01092]
2.59 pounds/day
327.7 pg/L
Notes:
1. The permittee shall submit all discharge monitoring data electronically using the Division's
eDMR system [see A. (8)].
A. (7.) Chronic Toxicity Pass/Fail Limit (Quarterly)
[15A NCAC 02B.0200 et seq.]
The effluent discharge shall at no time exhibit observable inhibition of reproduction or
significant mortality to Ceriodaphnia dubia at an effluent concentration of 10% (0.5 MGD),
18% (1 MGD), and 34.0% (2.305 MGD).
The permit holder shall perform at a minimum, quarterly monitoring using test procedures
outlined in the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised
December 2010, or subsequent versions or "North Carolina Phase II Chronic Whole Effluent
Toxicity Test Procedure" (Revised- December 2010) or subsequent versions. The tests will be
performed during the months of February, May, August, and November. These months
signify the first month of each three-month toxicity testing quarter assigned to the facility.
Effluent sampling for this testing must be obtained during representative effluent discharge
and shall be performed at the NPDES permitted final effluent discharge below all treatment
processes.
If the test procedure performed as the first test of any single quarter results in a
failure or ChV below the permit limit, then multiple -concentration testing shall be
performed at a minimum, in each of the two following months as described in "North
Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -December
2010) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the
Effluent Discharge Monitoring Form (MR-1) for the months in which tests were performed,
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using the parameter code TGP3B for the pass/fail results and THP3B for the Chronic Value.
Additionally, DWR Form AT-3 (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, NC 27699-1621
Or, results can be sent to the email, ATForms.ATBgncdenr.gov.
Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section no later
than 30 days after the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical
measurements and all concentration/response data, and be certified by laboratory
supervisor and ORC or approved designate signature. 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 a month in which toxicity
monitoring is required, 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 the permittee fail to monitor during a month in which toxicity monitoring is required,
monitoring will be required during the following month. Assessment of toxicity compliance is
based on the toxicity testing quarter, which is the three month time interval that begins on
the first day of the month in which toxicity testing is required by this permit and continues
until the final day of the third month.
Should any test data from this monitoring requirement or tests performed by the North
Carolina Division of Water Resources indicate potential impacts to the receiving stream, this
permit may be re -opened and modified to include alternate monitoring requirements or
limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as
minimum control organism survival, minimum control organism reproduction, 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.
A. (8.) ELECTRONIC REPORTING OF 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.
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Permit NC0004944
NOTE: This special condition supplements or supersedes the following sections within Part II
of this permit (Standard Conditions for NPDES Permits):
• Section B. Signatory Requirements
(11.)
• 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)1
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: htt_ps://deq.nc.gov/about/divisions/water-
resourcesfedmr.
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
ATTENTION: 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, 2025, 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.
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)].
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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-npdes-electronic-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.
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 STATEMENTS OF
CERTIFICATION WILL BE ACCEPTED:
"I certify, 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
qualified 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 significant
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penalties for submitting false information, including the possibility of fines and
imprisonment for knowing violations."
5. Records Retention [Supplements Section D. (6.11
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].
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
A. (9.) NUTRIENT REOPENER for HIGH ROCK LAKE
[G.S. 143-215.1(b)]
This permit may be reopened and modified to implement nutrient requirements in
accordance with any future TMDL and/or nutrient management strategy for High Rock Lake.
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