NCS000405_SWMP Approval_20230214

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ROY COOPER
Governor
MICHAEL S.REGAN `':i >
Secretary 0, ,ypN
BRIAN WRENN NORTH CAROLINA
Acting Director Environmental Quality
February 14, 2023
CERTIFIED MAIL 7021 2720 0000 1254 7985
RETURN RECEIPT REQUESTED
Town of Gibsonville
Attn: R.Ben Baxley,Town Manager
129 W Main Street
Gibsonville,NC 27249
Subject: Letter of NCDEQ Concurrence
Town of Gibsonville Draft SWMP
NPDES MS4 Permit No.NCS000405
Alamance County
Dear Mr. Baxley:
NCDEQ staff have reviewed the Draft SWMP submittal and concur with the outlined program
provided that the following comments be addressed in a final Draft SWMP submittal,to be
provided to DEQ within thirty(30)calendar days of receipt of this letter to continue with the
renewal process.
Saecific Comments
1. The SWG... Permit listed in Table 5 is not an Industrial Stormwater permit number.
2. A BMP for permit requirement 2.1.1 is not present in the SWMP.
a. Consider a documented analysis to confirm that the program is adequately funded and
staffed to take place permit year 1. With an annual reporting metric of
adequate/inadequate.
3. A BMP for permit requirement 2.2.2 is not present in the SWMP.
a. Consider a measurable goal to create all required written procedures for permit year 1
with a reporting metric of yes/no.
b. Consider a measurable goal to review all written programs and update as need for permit
years 2-5 with an annual reporting metric of yes/no.
4. BMP 14 should identify a number,percentage, or municipal area as the outfall monitoring goal
per year with appropriate annual reporting metric.
5. BMP 15 annual reporting metric should include the number of inspections.
6. For BMP 29,the annual reporting metric does not need to include corrective actions taken.
7. A BMP should exist in table 21 which include the creating of an inventory of facilities with the
potential for generating pollutes stormwater runoff.
For final approval,the revised Draft SWMP submittal must include a scanned pdf sent to the below listed
email,and a hard copy with a certifying statement and original"wet' signature by the Town's ranking
elected official or designated Town staff member in compliance with Part W,Paragraph G of the current
MS4 Permit. Please submit the revised SWMP to:
North Carolina Department of Environmental Quality I Division of Energy,Mineral and Land Resources
512 North Salisbury Street 11612 Mail Service Center I Raleigh,North Carolina 2 76 9 9-1612
919.707.9200
NNOFMCPPOIJNP ` _'

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Letter of Concurrence
Town of Gibsonville
February 14,2023
DEQ-DEMLR Stormwater Program
Attn: Isaiah Reed
1612 Mail Service Center
Raleigh,NC 27699-1612
And electronically to:
Isaiah.reedgncdenr.gov
Thank you for your prompt attention to this matter. Should you have any questions,please contact me at
[phone] or at Isaiah.reedgncdenr.gov.
Sincerely, ,
Isaiah Reed, PE, CPSWQ, MS4CE I
MS4 Program Coordinator
North Carolina Department of Environmental Quality
cc: DEMLR NPDES MS4 Permit Laserfiche File
[e-mail]
pross(2awck.com
Isaiah.reedgncdenr.eov