HomeMy WebLinkAboutNC0043532_Draft Permit_20180502 ROY COOPER
Govei no;
MICHAEL S REGAN
Sea eko y
Water Resources LINDA CULPEPPER
ENVIRONMENTAL QUALITY Intel un Dueclo,
May 2, 2018
Donna L.Davis
Stanly County Utilities Director
Stanly County
1000 North First Street, Suite 10
Albemarle,North Carolina 29001
Subject: Draft NPDES Permit Renewal
Permit NC0043532
West Stanly WWTP
Stanly County
Facility Class III
SIC Code 4952
Dear Ms.Davis.
Enclosed with this letter is a copy of the Draft NPDES permit renewal for your facility. Please review this
draft carefully to ensure thorough understanding of the requirements and conditions it contains. There are
several changes from the existing permit,including the following:
• The NC 2007-2014 Water Quality Standards (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 NPDES Permitting Unit is required to implement the new dissolved
metal standards in all permits public noticed after Apnl 6,2016.The new standards for most
metals include acute standards.Further,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 NPDES Permitting Umt 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. Effluent hardness and mstream hardness sampling,
upstream of the discharge,has been added to this permit at a monitoring frequency of quarterly.
See Section A. (1)Effluent Limitations and Monitonng Requirements.
• Total copper and zinc monitoring have been changed to quarterly monitoring.A reasonable
potential analysis did not indicate potential to violate the WQS,however,both receiving streams
are impaired for copper and one for zinc,therefore monitonng will be maintained until the
streams can be re-evaluated under the new WQS or a TMDL is in place to address the
impairments. Additionally, in accordance with 15A NCAC 2B .0500 all test procedures must
produce detection and reporting levels that are below the permit discharge requirements and all
data generated must be reported to the approved detection level or lower reporting level of the
procedure. Currently,DWR's laboratory identifies the Practical Quantitation Limit(PQL)for
State of North Carolina I Environmental Quality I Water Resources
1617 Mail Service Center I Raleigh,North Carolina 27699-1617
919 807 6300
Page 12
total copper at<2 µg/L and total zinc at<10 pg/L.Therefore, future sampling for total copper and
zinc should sample to these lower reporting levels.
• In a limited dataset,bis(2-ethylhexyl)phthalate and cyanide showed reasonable potential to
violate WQS m Long Creek via emergency Outfall 001 and quarterly monitoring for these
parameters has been added to that outfall. See Section A. (2).
• Emergency Outfall 001 has been removed upon expansion to 1.2 MGD.Upon expansion to 1.2
MGD,BOD, ammonia, and dissolved oxygen limits change and total nitrogen and phosphorous
sampling are increased to monthly. See Section A. (3). After expansion,the facility will have to
perform three seasonal effluent pollutant scans during the permit cycle and four second species
toxicity tests prior to permit renewal in accordance with 40 CFR 122 21(1)(5). See Section A. (5).
• Instream monitoring for conductivity has been removed due to lack of industrial dischargers and a
pretreatment program
• Some of the wording in A. (4)CHRONIC TOXICITY PERMIT LIMIT has been updated,please
review carefully.The changes include a 6.0%effluent concentration at 1.2 MGD.
• Special condition A. (6)EFFLUENT MERCURY ANALYSIS has been added to the permit
requiring at least one low level mercury analysis using EPA Method 1631E within 12 months
prior to the permit renewal application date until expansion to 1.2 MGD.
• Federal program reports.The requirement to continue reporting discharge monitoring data
electronically using the NC DWR's Electronic Discharge Momtormg Report(eDMR) internet
application has been added to your NPDES permit [See Special Condition A. (7)] regulations
require electronic submittal of all discharge monitoring reports (DMRs) and
The NPDES Standard Conditions(Parts II,III, and IV) are not included with this draft. They can be
found at the following link if you would like to review them in conjunction with this draft permit.
http://ncdenr.s3.amazonaws.com/s3 fs-
public/W ater%20Quality/Surface%20Water%20Protection/NPDES/MISC/NPDES%20Standard%20Con
dations-Boilerplate-DWR-SWP-NPDES 20150410 pdf
Concurrent with this notification the Division is publishing a notice in a newspaper having circulation in
the general Stanly County area, solicitmg public comments on this draft permit.Please provide any
written comments you may have to the following:NCDEQ/DWR,NPDES Permitting Branch, 1617 Mail
Service Center,Raleigh,NC 27699-1617 no later than 30 days after receipt of this draft permit.
Following the 30-day public comment period,the Division will review all pertinent comments and take
appropriate action prior to issuing a final permit.If you have questions concerning this draft permit,
please call me at(919) 807-6304 or by email at david.hill@ncdenr.gov
Since
i
David Hill, Environm tal Senior Specialist
NPDES Complex Permitting Unit
Hardcopy: NPDES Files
Ecopy: US EPA Region 4
DWR/Aquatic Toxicology Branch/Susan Meadows
DWR/Mooresville Regional Office/Water Quality
DWR/Operator Certification Program/Maureen Kinney
Permit NC0043532
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 provision 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,
Stanly County
is hereby authorized to discharge wastewater from a facility located at the
West Stanly WWTP
Off of NCSR 1953
East of Oakboro
Stanly County
to receiving waters designated as the Rocky River(Outfall 002) and Long Creek (Outfall 001) 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.
This permit shall become effective tbd.
This permit and authorization to discharge shall expire at midnight January 31, 2023.
Signed this day tbd.
Linda Culpepper
Intenm Director, Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 15
Permit NC0043532
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are
hereby revoked As of this permit 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.
Stanly County
is hereby authorized to:
1. Continue to operate and maintain a 0.90 MGD wastewater treatment plant consisting
of the following components:
• Influent pump station with bar screen, grit removal, flow measurement
• Influent flow splitter box
• Influent composite sampler
• Two (2) 0.6 MG aeration basin with mechanical aerators
• Clarifier splitter box
• Two (2) 0.055 MG secondary clarifiers
• WAS pump station
• RAS pump station
• One (1) 0.2 MG secondary clarifier
• Return sludge pump station
• 0.035 MG Chlorine contact basin with dechlorination unit
• Effluent composite sampler
• Effluent pump station with three(3) pumps and force main to Outfall 002
• Two (2) 225 ft2 sludge holding tanks
• One (1) 0.4 MG aerobic digester/sludge holding basin with floating aerators,
floating mixer, a floating decant mechanism, and auxiliary pumps
• Two (2) 1,250 ft2 sludge drying beds, surplus
• Standby electric generator
The facility is located at the West Stanly WWTP, off of NCSR 1953, east of
Oakboro, Stanly County.
2. After receiving an Authorization to Construct, construct a new wastewater treatment
facility with an average design flow of up to 1.2 MGD.
(Continued next page)
Page 2 of 15
Permit NC0043532
(Continued Supplement to Permit Cover Sheet)
3. Upon submitting and Engineer's Certification form,operate said treatment works at 1.2
MGD.
4. Discharge from said treatment works at the locations specified on the attached map into
Rocky River (Outfall 002) and Long Creek (emergency Outfall 001 until expansion
above 0.9 MGD). Both locations are classified C waters in the Yadkin-Pee Dee River
Basin.
Page 3 of 15
Permit NC0043532
Part I
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
a. During the penod beginning on the effective date of the permit and lasting until expansion
above 0.9 MGD or expiration,whichever is sooner,the Permittee is authorized to discharge
treated domestic wastewater from Outfall 002 (Rocky River). Such discharges shall be
limited and monitored 1 by the Permittee as specified below:
EFFLUENT LIMITATIONS MONITORING REQUIREMENTS
CHARACTERISTICS Monthly Weekly Daily Measurement Sample Sample
Average Average Maximum Frequency Type Location 2
Flow 0.9 MGD Continuous Recording I or E
BOD, 5 day, 20°C 3 9.0 mg/L 13.5 mg/L 3/Week Composite I and E
(April 1 —October 31)
BOD, 5 day, 20°C 3 18.0 mg/L 27.0 mg/L 3/Week Composite I and E
(November 1 —March 31)
Total Suspended Solids 3 30.0 mg/L 45.0 mg/L 3/Week Composite I and E
NH3 as N 3.0 mg/L 9.0 mg/L 3/Week Composite E
(Apel 1 —October 31)
NH3 as N 6.0 mg/L 18.0 mg/L 3/Week Composite E
(November 1 —March 31)
Dissolved Oxygen Not less than 5.0 mg/L, daily average 3/Week Grab E
Dissolved Oxygen, mg/L Variable 2 Grab U, D
pH Between 6.0 and 9.0 Standard Units 3/Week Grab E
Fecal Coliform 200/100 mL 400/100 mL 3/Week Grab E
(geometnc mean)
Fecal Coliform, #/100 mL Variable 2 Grab U, D
Total Residual Chlorine 4 28 µg/L 3/Week Grab E
Total Copper, µg/L Quarterly Composite E
Total Zinc, µg/L Quarterly Composite E
Temperature, °C Daily Grab E
Temperature, °C Variable 2 Grab U, D
Total Hardness as
[CaCO3 or(Ca+Mg)]5, Quarterly Composite E
mg/L
Total Hardness as
[CaCO3 or(Ca+Mg)] 6, Quarterly Grab U
mg/L
Total Nitrogen 7, mg/L Quarterly Composite E
Total Phosphorus, mg/L _ Quarterly Composite E
Chronic Toxicity 8 Quarterly Composite E
Page 4 of 15
Permit NC0043532
(Continued A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS)
Footnotes:
1. The Permittee shall submit discharge monitoring reports electronically using NC
DWR's eDMR application system. See Special Condition A. (7).
2. Sample locations: E - Effluent, I - Influent, U - Upstream at least 100 feet above the
discharge point, D - Downstream 1.7 miles below the discharge point (near the end of
NCSR 1659). Instream monitoring requirements are waived as long as the facility
retains membership in the Yadkin-Pee Dee River Basin Association. If membership is
cancelled, facility will monitor 3/week during the months of June through September
and once per week during the remaining months of the year.
3. The monthly average effluent BODS and TSS concentrations shall not exceed 15% of
the respective influent value(85%removal).
4. The Division shall consider all effluent total residual chlorine values reported below 50
µg/L to be in compliance with the permit. However, the Permittee shall continue to
record and submit all values reported by a North Carolina certified laboratory(including
filed certified) even if these values fall below 50 µg/L.
5. Effluent hardness sampling shall be performed in conjunction with testing for hardness
dependent metals (cadmium, chromium, copper, lead, nickel, silver, and zinc).
6. The Permittee shall sample instream hardness, approximately 100 yard upstream from
the facility's discharge and shall be representative of the hardness in the receiving
stream. If the Permittee is a member of a Monitoring Coalition Program, sampling for
instream hardness may be waived as long as the Monitoring Coalition agrees to sample
hardness at the same upstream location, at a minimum frequency of quarterly, and the
Permittee has obtained approval from the DWR -NPDES Permitting Unit. 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.
7. Total Nitrogen is the sum of TKN+NO3-N +NO2-N, where TKN and NO3-N +NO2-
N are Total Kjeldahl Nitrogen and Nitrate and Nitrite Nitrogen respectively.
8. Chronic Toxicity (Ceriodaphma) P/F at 4.6%; January, April, July, and October. See
Special Condition A. (4)—Outfall 002.
b. There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 5of15
Permit NC0043532
A. (2) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
a. During the period beginning on the effective date of the permit and lasting until expansion
above 0.9 MGD or expiration, the Permittee is authorized to discharge treated domestic
wastewater from emergency backup Outfall 001 (Long Creek) in case of an effluent
pump station failure. Such discharges shall be limited and monitored 1 by the Permittee
as specified below:
EFFLUENT LIMITATIONS MONITORING REQUIREMENTS
CHARACTERISTICS Monthly Weekly Daily Measurement Sample Sample
Average Average Maximum Frequency Type Location z
Flow 0.9 MGD Continuous Recording I or E
BOD, 5 day,20°C 3 9.0 mg/L 13 5 mg/L 3/Week Composite I and E
(Apel 1 —October 31)
BOD, 5 day, 20°C 3 18 0 mg/L 27.0 mg/L 3/Week Composite I and E
(November 1 —March 31)
Total Suspended Solids 3 30 0 mg/L 45 0 mg/L 3/Week Composite I and E
NH3 as N 2.8 mg/L 8.4 mg/L 3/Week Composite E
(Apel 1 —October 31)
NH3 as N 6 0 mg/L 18.0 mg/L 3/Week Composite E
(November 1 —March 31)
Dissolved Oxygen Not less than 5.0 mg/L, daily average 3/Week Grab E
Dissolved Oxygen, mg/L Variable 2 Grab U,D
pH Between 6.0 and 9.0 Standard Units 3/Week Grab E
Fecal Coliform 200/100 mL 400/100 mL 3/Week Grab E
(geometric mean)
Fecal Coliform,#/100 mL Variable 2 Grab U,D
Total Residual Chlorine 4 28 µg/L 3/Week Grab E
Total Copper, µg/L Quarterly Composite E
Total Zinc, µg/L Quarterly Composite E
Temperature, °C Daily Grab E
Temperature, °C Variable 2 Grab U,D
Total Hardness as
[CaCO3 or(Ca+Mg)]5, Quarterly Composite E
mg/L
Total Hardness as
[CaCO3 or(Ca+Mg)] 6, Quarterly Grab U
mg/L
Total Nitrogen 7,mg/L Quarterly Composite E
Total Phosphorus,mg/L Quarterly Composite E
Chronic Toxicity 8 Quarterly Composite E
Bis(2-ethylhexyl)phthalate, Quarterly Composite E
µ0-
Cyanide,mg/L Quarterly Grab E
Page 6 of 15
Permit NC0043532
(Continued A. (2) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS)
Footnotes:
1. The Permittee shall submit discharge monitoring reports electronically using NC
DWR's eDMR application system. See Special Condition A. (7).
2. Sample locations: E - Effluent, I - Influent, U - Upstream at least 100 feet above the
discharge point, D - Downstream 1.7 miles below the discharge point(near the end of
NCSR 1659). Instream monitoring requirements are waived as long as the facility
retains membership in the Yadkin-Pee Dee River Basin Association. If membership is
cancelled, facility will monitor 3/week during the months of June through September
and once per week during the remaining months of the year.
3. The monthly average effluent BODS and TSS concentrations shall not exceed 15% of
the respective influent value (85%removal).
4. The Division shall consider all effluent total residual chlorine values reported below
50 µg/L to be in compliance with the permit. However,the Permittee shall continue to
record and submit all values reported by a North Carolina certified laboratory
(including filed certified) even if these values fall below 50 µg/L.
5. Effluent hardness sampling shall be performed in conjunction with testing for hardness
dependent metals (cadmium, chromium, copper, lead, nickel, silver, and zinc).
6. The Permittee shall sample instream hardness, approximately 100 yard upstream from
the facility's discharge and shall be representative of the hardness in the receiving
stream. If the Permittee is a member of a Monitoring Coalition Program, sampling for
mstream hardness may be waived as long as the Monitoring Coalition agrees to sample
hardness at the same upstream location, at a minimum frequency of quarterly, and the
Permittee has obtained approval from the DWR -NPDES Permitting Unit. 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.
7. Total Nitrogen is the sum of TKN +NO3-N+NO2-N,where TKN and NO3-N+NO2-
N are Total Kjeldahl Nitrogen and Nitrate and Nitrite Nitrogen respectively.
8. Chronic Toxicity (Ceriodaphma) P/F at 30%; January, April, July, and October. See
Special Condition A. (4)—Outfall 001.
b. There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 7 of 15
Permit NC0043532
A. (3) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
115A NCAC 02B .0400 et seq., 02B .0500 et seq.]
a. During the period beginning upon receipt of an Engineer's Certificate for completion of
the 1.2 MGD expansion and lasting until expiration, the Permittee is authorized to
discharge treated domestic wastewater from Outfall 002 (Rocky River). Such discharges
shall be limited and monitored I by the Permittee as specified below:
EFFLUENT - LIMITATIONS MONITORING REQUIREMENTS
CHARACTERISTICS Monthly Weekly Daily Measurement Sample Sample
Average Average Maximum Frequency Type Location 2
Flow 1.2 MGD Continuous Recording I or E
BOD, 5 day, 20°C 3 10.0 mg/L 15.0 mg/L 3/Week Composite I and E
Total Suspended Solids 3 30.0 mg/L 45.0 mg/L 3/Week Composite I and E
NH3 as N 4.0 mg/L 12.0 mg/L 3/Week Composite E
Dissolved Oxygen Not less than 6.0 mg/L, daily average 3/Week Grab E
Dissolved Oxygen, mg/L Variable 2 Grab U, D
pH Between 6.0 and 9.0 Standard Units 3/Week Grab E
Fecal Coliform 200/100 mL 400/100 mL 3/Week Grab E
(geometric mean)
Fecal Coliform, #/100 mL Variable 2 Grab U, D
Total Residual Chlorine 4 28 µg/L 3/Week Grab E
Total Copper, µg/L Quarterly Composite E
Total Zinc, µg/L Quarterly Composite E
•
Temperature, °C Daily Grab•
E
Temperature, °C Variable 2 Grab U, D
Total Hardness as
[CaCO3 or(Ca+Mg)]5, Quarterly Composite E
mg/L
•
Total Hardness as
[CaCO3 or(Ca+Mg)] 6, Quarterly Grab U
mg/L
Total Nitrogen 7 ,mg/L Monthly Composite E
Total Phosphorus, mg/L Monthly Composite E
Chronic Toxicity 8 Quarterly Composite E
Effluent Pollutant Scan See Footnote 9 E
Footnotes:
1. The Permittee shall submit discharge monitoring reports electronically using NC
DWR's eDMR application system. See Special Condition A. (7).
Page 8 of 15
Permit NC0043532
(Continued A. (3) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS)
2. Sample locations: E - Effluent, I - Influent, U - Upstream at least 100 feet above the
discharge point, D - Downstream 1.7 miles below the discharge point (near the end of
NCSR 1659). Instream monitoring requirements are waived as long as the facility
retains membership in the Yadkin-Pee Dee River Basin Association. If membership is
cancelled, facility will monitor 3/week during the months of June through September
and once per week during the remaining months of the year.
3. The monthly average effluent BODS and TSS concentrations shall not exceed 15%of
the respective influent value(85%removal).
4. The Division shall consider all effluent total residual chlorine values reported below
50 µg/L to be in compliance with the permit. However, the Permittee shall continue to
record and submit all values reported by a North Carolina certified laboratory
(including filed certified) even if these values fall below 50 µg/L.
5. Effluent hardness sampling shall be performed in conjunction with testing for hardness
dependent metals (cadmium, chromium, copper, lead,nickel, silver, and zinc).
6. The Permittee shall sample instream hardness, approximately 100 yard upstream from
the facility's discharge and shall be representative of the hardness in the receiving
stream. If the Permittee is a member of a Monitoring Coalition Program, sampling for
instream hardness may be waived as long as the Monitoring Coalition agrees to sample
hardness at the same upstream location, at a minimum frequency of quarterly, and the
Permittee has obtained approval from the DWR -NPDES Permitting Unit. 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.
7. Total Nitrogen is the sum of TKN+NO3-N+NO2-N,where TKN and NO3-N+NO2-
N are Total Kjeldahl Nitrogen and Nitrate and Nitrite Nitrogen respectively.
8. Chronic Toxicity(Ceriodaphma) P/F at 6.0%; January, April, July, and October. See
Special Condition A. (4)—Outfall 002.
9. The permittee shall perform three Effluent Pollutant Scans and four Second Species
Toxicity Tests in conjunction with this permit next renewal, commencing with this
permit activation of the 1.2 MGD terms. See Special Condition A. (5).
b. There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 9 of 15
Permit NC0043532
A. (4) CHRONIC TOXICITY PERMIT 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 4.6% for a permitted flow of 0.9
MGD and 6.0% for a permitted flow of 1.2 MGD from Outfall 002. An effluent concentration of
30.0% shall be used for a permitted flow of 0.9 MGD from Outfall 001.
The permit holder shall perform at a minimum,quarterly monitonng 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 January, April, July, and October. 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, 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
1623 Mail Service Center
Raleigh,NC 27699-1623
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
Page 10 of 15
Permit NC0043532
(Continued A. (4) CHRONIC TOXICITY PERMIT LIMIT(QUARTERLY))
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. (5) EFFLUENT POLLUTANT SCAN
[G.S. 143-215.1(b)]
Once the 1.2 MGD limitation page is effective,the Permittee shall perform a total of three(3)Effluent Pollutant
Scans for all parameters listed below Based on the time between the 1.2 MGD effective date and when the
renewal application is submitted, the three scans will be conducted at equal intervals so the data can be
incorporated m the renewal application.Analytical methods shall be in accordance with 40 CFR Part 136 and
shall be sufficiently sensitive to determine whether parameters are present in concentrations greater than
applicable standards and criteria. Samples should be collected with one quarterly toxicity test each scan, and
must represent seasonal variation [i.e., do not sample in the same quarter every year]. Unless otherwise
indicated,metals shall be analyzed as"total recoverable."
Ammonia(as N) Trans-1,2-dichloroethylene Bis(2-chloroethyl)ether
Chlorine(total residual,TRC) 1,1-dichloroethylene Bis(2-chloroisopropyl)ether
Dissolved oxygen 1,2-dichloropropane Bis(2-ethylhexyl)phthalate
Nitrate/Nitrite 1,3-dichloropropylene 4-bromophenyl phenyl ether
Kjeldahl nitrogen Ethylbenzene Butyl benzyl phthalate
Oil and grease Methyl bromide 2-chloronaphthalene
Phosphorus Methyl chloride 4-chlorophenyl phenyl ether
Total dissolved solids Methylene chloride Chrysene
Hardness 1,1,2,2-tetrachloroethane Di-n-butyl phthalate
Antimony Tetrachloroethylene Di-n-octyl phthalate
Arsenic Toluene Dibenzo(a,h)anthracene
Beryllium 1,1,1-trichloroethane 1,2-dichlorobenzene
Cadmium 1,1,2-trichloroethane 1,3-dichlorobenzene
Chromium Tnchloroethylene 1,4-dichlorobenzene
Copper Vinyl chloride 3,3-dichlorobenzidme
Lead Acid-extractable compounds: Diethyl phthalate
Mercury(EPA Method 1631E) P-chloro-m-cresol Dimethyl phthalate
Nickel 2-chlorophenol 2,4-dmitrotoluene
Selenium 2,4-dichlorophenol 2,6-duutrotoluene
Silver 2,4-dimethylphenol 1,2-diphenylhydrazme
Thallium 4,6-dnutro-o-cresol Fluoranthene
Zinc 2,4-duutrophenol Fluorene
Cyanide 2-mtrophenol Hexachlorobenzene
Total phenolic compounds 4-mtrophenol Hexachlorobutadiene
Page 11 of 15
Permit NC0043532
Volatile organic compounds: Pentachlorophenol Hexachlorocyclo-pentadiene
Acrolem Phenol Hexachloroethane
Acrylonitrile 2,4,6-trichlorophenol Indeno(1,2,3-cd)pyrene
Benzene Base-neutral compounds: Isophorone
Bromoform Acenaphthene Naphthalene
Carbon tetrachlonde Acenaphthylene Nitrobenzene
Chlorobenzene Anthracene N-mtrosodi-n-propylamine
Chlorodibromomethane Benzidme N-mtrosodnmethylamme
Chloroethane Benzo(a)anthracene N-nitrosodiphenylamme
2-chloroethylvmyl ether Benzo(a)pyrene Phenanthrene
Chloroform 3,4 benzofluoranthene Pyrene
Dichlorobromomethane Benzo(ghi)perylene 1,2,4-tnchlorobenzene
1,1-dichloroethane Benzo(k)fluoranthene
1,2-dichloroethane Bis(2-chloroethoxy)methane
Reporting. Test results shall be reported on DWQ,Form-A MR-PPA1 (or m a form approved by the
Director) by December 31st of each designated sampling year. The report shall be submitted to the
following address: NC NCDWR/ Central Files(161'7 Mail Service Center, Raleigh, North Carolina
27699-1617.
f
Additional Toxicity Testing Requirements for Municipal Permit Renewal. Please note that Municipal
facilities that are subject to the Effluent Pollutant Scan requirements listed above are also subject to
additional toxicity testing requirements specified in Federal Regulation 40 CFR 122.210)(5). The US EPA
requires four(4)toxicity tests for a test organism other than the test species currently required in this permit.
The multiple species tests should be conducted either quarterly for a 12-month period prior to submittal of
the permit renewal application,or four tests performed at least annually in the four and one half year period
prior to the next renewal application These tests shall be performed for acute or chronic toxicity,whichever
is specified in this permit The multiple species 'toxicity test results shall be filed with the Aquatic
Toxicology Branch at the following address:
North Carolina Division ofWater Resources
Water Sciences Section/Aquatic Toxicology Branch
1623 Mail Service Center
Raleigh,North Carolina 27699-1623
Contact the Division's Aquatic' Toxicology Branch at 919-743-8401 for guidance on conducting the
additional toxicity tests and reporting requirements. Results should also be summarized in Part E(Toxicity
Testing Data) of EPA Municipal Application Form 2A,when submitting the permit renewal application to
the NPDES Permitting Unit.
A. (6) EFFLUENT MERCURY ANALYSIS
[G.S. 143-215.3(a)(2), G.S. 143-215.66]
If no Effluent Pollutant Scans are required in conjunction with the next permit renewal, the
Permittee shall provide in conjunction with the next permit renewal application a minimum of one
effluent mercury analysis using EPA Method 1631E determined within 12 months prior to the
application date.Any additional effluent mercury measurements conducted from the effective date
of this permit and up to the application date shall also be submitted with the renewal application.
If the mercury analysis is not provided with the application, the application may be returned as
incomplete and the Permittee considered non-compliant.
Page 12 of 15
Permit NC0043532
A. (7) 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.
NOTE: 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)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. Until
such time that the state's eDMR application is compliant with EPA's Cross-Media Electronic
Reporting Regulation (CROMERR), permittees will be required to submit all discharge
monitoring data to the state electronically using eDMR and will be required to complete the
eDMR submission by printing, signing, and submitting one signed original and a copy of the
computer printed eDMR to the'following address:
NC DENR/Division of Water Resources/Water Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh,North Carolina 27699-1617
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 mailing address above. 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:
Page 13 of 15
Permit NC0043532
• 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)].
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: http://www2.epa.gov/compliance/final-
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
Page 14 of 15
Permit NC0043532
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 penalties for
submitting false information, including the possibility of fines and imprisonment for knowing
violations."
5. Records Retention [Supplements Section D. (6.)l
The permittee shall retain records of all Discharge Momtormg Reports, including eDMR submissions.
These records or copies shall be maintained for a penod of at least 3 years from the date of the report.
This penod may be extended by request of the Director at any time [40 CFR 122.41].
Page 15of15
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USGS Quad: G17NE Oakboro,NC t
Facility Outfall 001 Outfall 002
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Latitude: 35° 14'9.8"N 35° 14' 7.8"N 35° 12'41"N
Longitude: 80° 16' 8.9"W 80° 15' 58" W 80° 15' 16" W
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Subbasins: 03-14-13/03-14-14
HIJC: 03040105
Receiving Streams:Outfall 001 Long Creek/Outfall 002 Rocky West Stanly WWTP NC0043532
River Stanly County