NC0034754_speculative limits_19920129

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RFCEIVED
JAN 2 9 ' 1992
Cf;�i• �.. �'w,� ; �s' • fri V'RT Ui�3Si �1
State of North Carolina
Department of Environment, Health, and Natural Resources
Division of Environmental Management
512 North Salisbury Street Raleigh, North Carolina 27611
James G. Martin, Governor
William W. Cobey, Jr., Secretary
Mr. Bill Piver
Town of Pilot Mountain
PO Drawer AA
Pilot Mountain, NC 27014
Dear Mr. Piver:
Reference is made to your NPDES permit application received July 17, 1992. Per your request,
the proposed effluent limitations for a discharge into Ararat River rather than into Heatherly Creek
are listed below:
January 29, 1992
George T. Everett, Ph.D.
Director
Recommended Limits at
BOD5 (mg/1)
NH3N (mg/1)
DO (mg/1)
SS (mg/1)
Fecal Coliform (/100 ml)
Oil and Grease (mg/I)
Total Phosphorus (mg/1)
Total Nitrogen (mg/1)
Cadmium (µg/1)
Chromium (1g/1)
Copper(µg/1)
Nickel (µg/1)
Lead (pg/1)
Cyanide (µg/1)
Silver(4/1)
Zinc(µg/1)
Mercury (µg/1)
Chronic Toxicity
Subject: NPDES Permit Speculative Limits
NPDES Permit No. NC0026646
Pilot Mountain WWTP
Surry County
Requested Wastewater
1.50
sum mer
30.0
28.6
monitor
30.0
200.0
30.0
monitor
monitor
monitor
monitor
monitor
monitor
monitor
monitor
monitor
monitor
0.436
3%
Flows for Ararat River:
MGD
win ter
30.0
monitor
monitor
30.0
200.0
30.0
monitor
monitor
monitor
monitor
monitor
monitor
monitor
monitor
monitor
monitor
0.436
3%
Pollution Prevention Pays
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

Page 2
Mr. Piver
1/21/92
The mercury limit is a daily maximum; other limits are monthly averages. The limit for pH is 6.0
to 9.0 standard units in all cases. Monitoring for all other parameters listed above is required.
Please note that these are speculative limits and are not binding unless the limits are part of an
issued NPDES permit.
If you have any questions, please contact Ms. Rosanne Barona at 919/ 733-5083.
Sincerely
M. Dale Over.E.
Supervisor, NPDES Permits Group
cc: Winston-Salem Regional Office
£Iemer is - TSB
Boyd DeVane
Permit File