NC0026646_permit modification_20080523

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7
May 23, 2008
Mr. Blair Knox
Town Manager
124 West Main Street
Pilot Mountain, NC 27041
Michael F. Easley, Governor
North Carolina Department of Environment and Natural Re ourctaryes
Coleen H. Sullins, Director
Division of Water Quality
Subject: Monitoring for High Rock Reservoir (Permit - NC0026646)
Total Maximum Daily Load (TMDL) Study (chlorophyll a and turbidit
y)
Dear Mr. Knox:
The Division of Water Quality (DW
Association Q), in partnership with the Yadkin Pee -Dee River Basin
(YPDRBA), has begun monitoring of the High Rock Reservoir watershed fo
purpose of chlorophyll a and turbidity TMDL development, as of April 2008. The r the
monitoring
is scheduled to last for two years (April 1, 2008 - March 31, 2010).
Ms. Kathy Stecker, Supervisor, Modeling and TMDL Unit, discussed additional
monitoring needs for NPDES dischargers at the YPDRBA meeting held October
These increased nutrient and turbidity monitoring needs are not effluent
facility's a 5, 2007.
ty permit effluent monitoring requirements. Members of YPDRBA havecagr included in your
perform the additional monitoring for the duration of the two-year study, in agreed to
sufficient data to perform a comprehensive TMDL for High Rock Lake. Although
is not being reopened to include this additional monitoring, shouldy order to supply
falter, the Division will reconsider this decision to include the ad your permit
githe voluntary monitoring
time necessary, additional monitoring for the
The additional effluent monitoring requirements for your facility are:
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617
Internet: www.ner°ualitv.or�
Location: 512 N. Salisbury St. Raleigh Arlo 27604 Phone [phone] Customer Service
Fax [phone]
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Natural!,

Additional Monitoring for High Rock Lake
Page 2
Thank you for your cooperation and assistance with this monitoring effort. This data will be
invaluable to model development and improve model predictions. If you have any questions,
please contact Ms. Susan A. Wilson, ext. 510 (Supervisor, Western NPDES Program) or Ms.
Kathy Stecker , ext. 505.
Sincerely,
cc: Winston-Salem Regional Office [Steve Tedder
Central Files
NPDES Files
TMDL and Modeling Unit, Planning Section
Jennie Atkins, Environmental Sciences Section