NC0021121_Review of Long Term Monitoring Plan_20170918

Wa ter Resources
ENVIRONMENTAL QUALITY
Christopher S Marion
WWTP Supervisor
City of Mount Airy
P.O. Box 70
Mount Airy, NC 27030
September 18, 2017
Subject. Pretreatment Review of Long Term Monitoring Plan
Program: City of Mount Airy (NPDES Permit: NC0021121)
Surry County
Dear Mr. Marion:
ROY COOPER
Governor
MICHAEL S. REGAN
Secretat y
S. JAY ZIMMERMAN
Director
PERCS Unit of the Division of Water Resources has reviewed the updated Long Term Monitoring Plan
(LTMP) for the City of Mount Airy. The LTMP was initially received by the Division on August 4, 2017,
followed by revisions received on August 25, 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,
Section D of your NPDES permit
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.
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.
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]]
mh/mountairy Itmp updated 2017
cc Monti Hassan, PERCS Unit
Central Files
Jim Gonsiewski, WSRO
Sincerely,
ionti Hassan
Division of Water Resources
(Nothing Compares--_,-
State of North Carolina I Environmental Quality I Water Resources
512 N Salisbury Street 11611 Mail Service Center I Raleigh, NC 27699-1611
919 7079000