NC0023868_Plan of Action_19890321

State of North Carolina
Department of Natural Resources and Community Development
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor R. Paul Wilms
William W. Cobey, Jr., Secretary March 21, 1989 Director
Stephen R. Shoaf, Utilities Administrator
City of Burlington
Box 1358
Burlington, NC 27216
Subject: Projected Wasteload Allocations for the East and South Wastewater
Treatment Plants (NPDES Nos. NC0025868 and NC0023876, Alamance
County)
Dear Mr. Shoaf,
This letter is in response to your request for projected wasteload alloca-
tions for the East and South Burlington wastewater treatment plants. Techni-
cal Services has evaluated the respective discharges to the Haw River and Big
Alamance Creek, and has estimated the limits necessary to protect the water
quality. These prospective limits take into account the interaction of the
two Burlington facilities with the Town of Graham WWTP, which also discharges
industrial wastewater in the nearby vicinity. The existing limits for the
Burlington facilities are shown below for toxicants of interest, along with
the limits expected to be made effective at permit renewal. Based on existing
information, the remaining domestic wastewater parameter limitations are not
expected to change.
Burlington East Burlington South
Existing Projected Existing Projected
Cadmium (mg/1) Monitor 0.005 0.002 0.0024
Chromium (mg/1) Monitor 0.1255 0.058 0.060
Copper (mg/1) Monitor Monitor Monitor Monitor
Nickel (mg/1) 0.140 0.141 0.061 0.060
Lead (mg/1) 0.065 0.070 Monitor 0.030
Zinc (mg/1) Monitor Monitor Monitor Monitor
Cyanide (mg/1) Monitor Monitor
Mercury (mg/1) Monitor Monitor 0.0002 0.0002
It is important to realize that these are speculative limits and are sub-
ject to change. The projected effluent limits are based on the existing dis-
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]
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charge sites and on the best available data; final limits will be derived at
the time of permit renewal and will be based on the best available data at
that time.
I have also included in the following table the analytical detection lev-
els recommended by Technical Services for use by your laboratory in monitoring
compliance. I suggest that methods be employed to achieve these levels and
assure the quality of data reported by your facilities.
Recommended Detection
Level (ug/l)
Cadmium 2
Chromium 25
Copper 10
Nickel 10
Lead 10
Zinc 10
Cyanide 20
Mercury 0.2
I hope this information is helpful in the long-range planning efforts of
the City of Burlington. If you have any questions or comments, please contact
myself or Trevor Clements of my staff at [phone].
Sincerely,
Steve W. Tedder, Chief
Water Quality Section
cc: Trribr Clements -
Steve Mauney
Central Files

mr
r
CITY OF Burlington
TELEPHONE [phone] • Box 1358
NORTH CAROLINA 27216
STEPHEN R. SHOAF
UTILITIES ADMINISTRATOR / FIELD OPERATIONS
March 9, 1989
Mr. Charles Wakild
Chief, Water Quality Section
NCDNRCD/DEM
P. 0. Box 27687
Raleigh, NC 27611
Dear Mr. Wakild:
•MAR 14 1989
WATER QUALITY
Y
SEcToN
This letter is written in follow-up to our phone conversation. The City
of Burlington would like to accept your offer to prepare projected waste load
allocation determinations for the East and South Burlington Wastewater
Treatment plants. We feel that information about the potential effluent
limits imposed if the proposed water quality standards are adopted will be
beneficial to our long-range planning efforts.
Thank you for your offer. If you need additional information, I can be
contacted at [phone].
SRS/vh
Sincerely,
51/1„
Stephen R. Shoaf
Utilities Administrator