NC0026441_Correspondence_20060720

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NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Michael F. Easley, Governor William G. Ross, Jr., Secretary
Alan W. Klimek, P.E., Director
Joel J. Brower
Town of Siler City
P.O. Box 769
Siler City, NC27344
July 20, 2006
Subject: Guidance Document for WWTP Expansions
Siler City WWTP
Chatham County
Dear Permittee:
Recognizing that many local governments face the need of pla g for expansions of wastewater
treatment plants, the Division has developed the enclosed g 'dance document. The purpose of this
document is to assist local governments in the planning process by summarizing the steps needed
to obtain all the permits necessary for an expansion.
The Division tracks average flows on a calendar -year basis for all permitted facilities. Those
approaching 80 % of the design hydraulic load of the treatment system are encouraged to start the
planning process to address the increasing flows.
The average flow for calendar year 2005 at your facility was 67% of the hydraulic permitted flow.
Please review this document and consider its applicability to your particular treatment system.
If you need more detailed information or assistance identifying the steps needed to address an
expansion, please contact the NPDES or Planning Units at [phone].
Sincerely,
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Matt Matthews
Point Source Branch
cc: Central Files
Raleigh Regional Office / Surface Water Protection
NPDES file
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
512 North Salisbury Street, Raleigh, North Carolina 27604
Phone: [phone] FAX [phone] / Internet: h2o.enr.state.nc.us
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