HomeMy WebLinkAboutNC0074756_Correction_201502274 -;
NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
February 27, 2015
Ms. Donna Davis, Director
Stanly County Utilities
1000 North First Street; Suite 12
Albemarle, NC 28001
Subject: Correction of NPDES Permit NCO074756
Stanly County Utilities — Greater Badin WWTP
Stanly County
Dear Ms. Davis:
Donald R. van der Vaart
Secretary
The Division of Water Resources has been made aware of an error within your NPDES permit. Accordingly we
are forwarding the attached, corrected permit page. Please remove the existing "Effluent Limitations and
Monitoring Requirements" page and replace it with the one attached to this letter. The correction affects effluent
monitoring for chloroform, changing the sample type from composite to grab.
This 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).
Please note that 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 Iegal requirements to
obtain other permits which may be required by the Division of Water Resources or any other Federal, State, or
Local governmental permits that may be required.
If you have any questions concerning this permit, please contact Bob Sledge at telephone number (919) 807-6398
or via e-mail at bob.sledge@ncdenr.gov.
;Nmerel ,
I ZV
S. Jay Zimmerman, Acting V ctof -
Division of Water Resources
cc: Central Files
Mooresville Regional Office/Water Quality
NPDES Permit File
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Phone: 919-807-630011ntemet: www.nmaterquality,org
An Equal Opportunity 1 Affirmative Action Employer— Made in part by recycled paper
Permit NC0074756
PART I
A. (L) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from outfall 001. Such discharges shall be limited and monitored)
by the Permittee as specified below:
EFFLUENT CHARACTERISTICS I LIMITS MONITORING REQUIREMENTS
Monthly Weekly Daily
Measurement
Sample,
Sample
Code
Average Average Maximum
Frequency
Type
'Location
Flow3Parameter
50050
0.550 MGD
Continuous
Recording
I or E
BOO,
OD5-day, 20'C4 C0310
20.0 mg/L 30.0 mg/L
3Meek
Composite
I & E
Total Suspended Solids¢ C0530
30.0 mg/L 45.0 mg/L
3Meek
Composite
I I & E
NH3 as N (April 1— Oct 31 C0610
1.2 m /L 3.6 m /L
3Meek
Composite
E
NH3 as N Nov 1— March 31 C0610
3.0 m /L 9.0 m /L
3Meek
Composite
E
Fecal Coliform(geometric mean 31616
200/100 ml 400/100 ml
3Meek
Grab
E
Total Residual Chlorines 50060
22.0 ug/L
3Meek
Grab
E
H 00400
> 6.0 and <— 9.0 standard units
3Meek
I Grab
E
Temperature °C 00010
Monitor & Report
Daily
Grab
E
Dissolved Oxygen 00300
Daily Average >— 5.0 m /L
3Meek
Grab
E
Chloroform 32106
Monitor & Report
Quarter) 6
Grab
E
Manganese 01055
Monitor & Report
Quarter) 6
Composite
E
Fluoride 00951
Monitor & Report
Quarter) 6
Composite
E
Total Nitrogen (NO2+ NO3+ TKN) C0600
Monitor & Report
Quarter) 6
Composite
E
Total Phosphorus C0665
Monitor & Report
Quarter) 6
Composite
E
Dissolved Oxygen 00300
Monitor & Report
3Meek
Grab
U,D
Total Nitrogen NO2+ NO3+ TM) C0600
Monitor & Report
Quarterly
Grab
U,D
Total Phosphorus C0665
Monitor & Report
Quarterly
Grab
U,D
Temperature (°C) 00010
Monitor & Report
3Meek
Grab
U,D
Chronic Toxicit 7 TGP313
Monitor & Report
Quarterly
Composite
E
Effluent Pollutant Scan NC01
Monitor & Report
See Footnote 8
See Footnote 8
E
Footnotes:
1. No later than December 1, 2014 (270 days from the effective date of this permit), begin submitting
discharge monitoring reports electronically using NC DWR's eDMR application system. See
Condition A. (3.).
2. Sample locations: E-Effluent; I -Influent; U-Upstream 50 feet above the outfall; D-2.8 miles below the
outfall at the mouth of Little Mountain Creek. Instream monitoring is provisionally waived in light of the
permittee's participation in the Yadkin Pee Dee River Basin Association
3. The facility shall report on a monthly basis flow entering the collection system from the Alcoa / Badin
Landfill near Wood Street. This flow measurement shall be submitted with facility December DMR as a
separate inflow to the treatment plant in million gallons per month.
4. The monthly average effluent BODS and Total Suspended Solids concentrations shall not exceed 15% of
the respective influent value (85% removal).
5. The Division shall consider all effluent TRC values reported below 50 ug/1 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 field certified), even if these values fall below 50 ug/l.
6. Monitoring should be performed in conjunction with toxicity testing.
7. Chronic toxicity (Ceriodaphnia dubia) 7 day pass/fail test at 77%: January, April, July, and October. See
Condition A. (2.).
8. See Condition A. (4.) for monitored parameters and monitoring frequency.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
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