NC0026271_Regional Office Historical File Pre 2018 (24)

Permit No. NCO026271
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF ENVIRONMENTAL MANAGEMENT
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,
Town of Taylorsville
is hereby authorized to discharge wastewater from a facility located at
Taylorsville Wastewater Treatment Plant
junction of NCSR 1108 & Minnington Road
south of Taylorsville
Alexander County
to receiving waters designated as Lower Little River in the Catawba River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in
Parts I, H, and III hereof.
This permit, shall become effective
This permit and authorization to discharge shall expire at midnight on June 30, 2000
Signed this day
A. Preston ,T., Director
Division o v ental Management
By Authority a Environmental Management Commission

Permit No. NC0026271
SUPPLEMENT TO PERMIT COVER SHEET
Town of Taylorsville
is hereby authorized to:
1. Continue to operate a 0.43 MGD wastewater treatment facility consisting of a bar screen, flow
splitter box, dual Imhoff tanks, dual dosing tanks, dual trickling filters, an aeration basin, a
secondary clarifier, an aerobic digestor, sludge holding tanks, sludge drying beds and chlorine
disinfection facilities located at Taylorsville Wastewater Treatment Plant, junction of NCSR
1108 & Minnington Road, south of Taylorsville, Alexander County (See Part III of this
Permit), and
2. Discharge from said treatment works at the location specified on the attached map into the Lower
Little River which is classified Class C waters in the Catawba River Basin.

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A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SUMMER (April 1- October 31) Permit No. NCO026271
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from
outfall(s) serial number 001, Such discharges shall be limited and monitored by the permittee as specified below:
Effluent Characteristic.
Discharge Limitations
Monthly Avg
Flow
0.43 MGD
BOD, 5 day, 200C**
30.0 mg/1
Total Suspended Residue**
30.0 mg/1
NH3 as N
17.8 mg/1
Fecal Coliform (geometric mean)
200.0 /100 ml
Total Residual Chlorine
Temperature
Total Nitrogen (NO2 + NO3 + TKN)
Total Phosphorus
Copper
Cyanide
Sample locations: E - Effluent, I - Influent
Weekly Avg. Daily Max
45.0 mg/I
45.0 mg/I
400.0 /100 ml
- Monitoring
Requirements
Measurement
Sample
*Sample
Frequency
Type
Location
Continuous-
Recording
I or E
Weekly
Composite
. E, I
Weekly
Composite
E, I
Weekly
Composite
E
Weekly
Grab
E
2/Week
Grab
E
Weekly
Grab
E
Quarterly
Composite
E
Quarterly
Composite
E
Monthly
Composite
E
Monthly
Grab
E
** The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15 % of the respective influent value (85
% removal).
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored weekly at the effluent by grab
sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
)PC C4,CU-7) E,1,1,2�rcr/ 3%3c�. l C5 R/% -jok, ar! tlr+�,rr r3AG

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SUMMER (April 1 - October 31) Permit No. NC0026271
During the period beginning on the effective date of the permit and lasting until expiration, the Perm' ittee is authorized to discharge from
outfall(s) serial number 001. (Continued)
Effluent Characteristic Discharge Limitations Monitoring Requirements
Units (specify Measurement Sample *Sample
Monthly Avg Weekly Avg. Daily Max Frequency Type Location
Zinc Monthly Composite E
Chlorides Monthly Composite E

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS WINTER (November 1- March 31) Permit No. NCO026271
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from
outfall(s) serial number 001. Such discharges shall be limited and monitored by the permittee as specified below:
Effluent Characteristic.
Flow
BOD, 5 day, 200C**
Total Suspended Residue**
NH3 as N
Fecal Coliform (geometric mean)
Total Residual Chlorine
Temperature
Total Nitrogen-(NO2 + NO3 + TKN)
Total Phosphorus
Copper
Cyanide
Discharae ' Limitation:
Monthly Avg Weekly Avg.
0.43 MGD
30.0 mg/I 45.0 mg/I
30.0 mg/l 45.0 mg/I
200.0 /100 ml 400.0 /100 ml
Monitoring
Requirements
Measurement
Sample
*Sample
`Daily Max Frequency
Type
Location
Continuous
Recording
I or E
Weekly
Composite
E, I
Weekly
Composite
E, I
2/Month
Composite
E
Weekly
Grab
E
2/Week
Grab
E
Weekly
Grab
E
Quarterly
Composite
E
Quarterly
.Composite
E
Monthly
Composite
E
Monthly
Grab
E .
* Sample locations: E - Effluent, I - Influent
** The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15 % of the respective influent value (85
% removal).
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored weekly at the effluent by grab
sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS WIlVTER (November 1- March 31) Permit No. NCO026271
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from
outfall(s) serial number 001. (Continued)
Effluent Characteristic. Discharge Limitation: Monitoring Requirements
Units (specify Measurement Sample `Sample
Monthly Avg Weekly Avg. Daily Max Frequency Type Location
Zinc Monthly Composite E
Chlorides Monthly Composite E

L
Part III
Permit No. NCO026271
F. CHRONIC TOXICITY PASS/FAiL PERMIT LIMIT (QRTRLY .
The effluent discharge shall at no time exhibit -chronic toxicity using test procedures outlined in:
11
1.) The North Carolina Ceriodaphnia chronic effluent, bioassay procedure (North Carolina Chronic
Bioassay. Procedure - Revised *September 1989) or subsequent versions.
The effluent concentration at which there may be no observable inhibition of reproduction or
significant mortality is 4.4% (defined as treatment two in the North Carolina procedure document).
The permit holder shall perform quarterly monitoring using this procedure to establish compliance
with the permit condition. The first test will be performed after thirty days from the effective date
of this permit during the months of January, April, July and October. Effluent sampling for this
testing shall be performed at the NPDES permitted final effluent discharge below all treatment
processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent
Discharge Monitoring Form (MR-1).for the month in which it was performed, using the parameter
code TGP3B. Additionally, DEM Form AT-1 (original) is to be sent to the following address: ,
Attention:
Environmental Sciences Branch
North Carolina Division of
Environmental Management
4401 Reedy Creek Road
Raleigh, N.C. 27607
Test data shall be complete and accurate and include all supporting chemicaUphysical 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 any single quarterly monitoring indicate a failure to meet specified limits, then monthly
monitoring will begin immediately until such time that a single test is passed. Upon passing, this
monthly test requirement will revert to quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina
Division of Environmental Management 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 and appropriate environmental controls, shall constitute an invalid test
and will require immediate retesting(within 30 days of initial monitoring event). Failure to submit
suitable test results will constitute noncompliance with monitoring requirements.
G. Industrial Waste Survey
The permittee shall update and submit to the Division its Industrial Waste Survey (IWS) of all
users of the sewer collection system by October 1, 1995.