NC0020559_Review of Long Term Monitoring Plan_20170424

WaterResources
ENVIRONMENTAL QUALITY
Mr. H. Lamont Allen
Director, HWRF
City of Henderson
P.O. Box 1434
Henderson, NC 27536-1434
April 24, 2017
Subject: Pretreatment Review of HWA Long Term Monitoring Plan
Program: City of Henderson
NPDES Permit No: NCO020559
Vance County
Dear Mr. Allen:
ROY COOPER
Governor
MICHAEL, S. REGAN
Secretary
S. JAY ZIMMERMAN
Director
The Pretreatment, Emergency Response and Collection System (PERCS) Unit of the Division of
Water Resources has reviewed the updated Long Term Monitoring Plan (LTMP) for the City of
Henderson. The LTMP was received by the Division on January 30, 2017.
The review indicates that the updated LTMP is adequate and meets the requirements needed to
establish a site-specific Headworks Analysis (HWA). Proper implementation of an LTMP is also
required by Part IV (C) of your NPDES permit.
1. LTMP Data Summary: Comprehensive Guide, Appendix 4-B sample collection and laboratory
analysis must be done as outlined in LTMP. It is also very important to organize and
summarize your data. Example LTMP data summary forms can be found on our website (web
address listed in footer of this letter) or on disc by request, and in the Comprehensive Guide.
2. Division Review of Data: As your LTMP data is accumulated, organized, and analyzed, the
Division may request to review tabulated data and to see chain of custody forms and
laboratory data sheets.
3. LTMP Modifications: Interpretation of monitoring data or changes in operation at your POTW
may indicate that the LTMP needs to be modified; however, please be aware that
modifications to your LTMP must be approved by the Division.
Thank you for your continued cooperation with the Pretreatment Program. If you have any
questions or comments, please contact Monti Hassan at [phone] [email:
Monti. [e-mail]] or Deborah Gore, Unit Supervisor at [phone] [email:
[e-mail]].
Sincerely,
MonIH s V -'—
Division of Water Resources
Nothing Compares—,-,
State of North Carolina I Environmental Quality I Water Resources
512 N. Salisbury Street 1 1611 Mail Service Center I Raleigh, NC 27699-1611
919.707.9000