NCS000427_Signed MS4 Audit Notification_20230404

ROY COOPER
Governor
EL.IZABETH S. BISER
Secretary
BRIAN WRENN
Director
NORTH CAROLINA
Environmental Quality
April 4, 2023
CERTIFIED MAIL 7017 0190 0000 2485 7087
RETURN RECEIPT REQUESTED
Town of Cary
Attn: Sean R. Stegall
316 North Academy Street
Cary, NC 27513
Subject: MS4 PERMIT COMPLIANCE AUDIT NOTIFICATION
Town of Cary
NPDES MS4 Permit No. NCS000427
Wake County
Mr. Stegall:
The Department of Environmental Quality (DEQ) has reviewed the documents submitted in response
to the January 13, 2023, pre -audit documentation request. Based upon this review, staff will be
performing the following National Pollutant Discharge Elimination System (NPDES) Municipal
Separate Storm Sewer System (MS4) Permit compliance audit for the subject permit.
An on -site audit will be performed, which includes on -site interviews with MS4 representatives and
site inspection(s) of municipal industrial facilities. The on -site audit is scheduled for April 18, 2023
beginning at 8:30 AM and is expected to take one (1) full day (see attached agenda). Please
arrange for an appropriate meeting space that will accommodate your representatives, 2-3 staff
members from DEQ, and access to any tools routinely utilized to implement the MS4 Program (e.g.
databases, GIS, forms, etc.).
You are expected to ensure that all relevant staff, contractors and management/]eadershiprofficials are
present for scheduled audit meetings. The audit is structured but informal, and the agenda will be
flexible depending upon progress. However, the Preliminary Findings portion of the audit will be held
as scheduled so that management and elected officials can plan to attend.
On -site meeting rooms must provide adequate space for all participants to maintain appropriate social
distancing protocols for COVID-19. If special arrangements or schedule adjustments are necessary to
achieve this, please discuss this with me prior to the audit date. All participants of on -site meetings
are expected to wear personal protective equipment in accordance with current state requirements.
guidelines and recommendations; and to also maintain appropriate social distancing protocols for
COVID-19 at all times.
North Carolina Department of Environmenta[ Quality I Division of Energy. Mineral and land Resources
Ra[ergh Regional Offica 1628 Marl Service Center 13800 Barrett Drive I Raleigh, North Carolina 27Wc4
or-.,Ew�u�.�n� /"� 9I14 79I.-1200

Letter of Receipt
Sean R. Stegall
April 4, 2023
Page 2 of 2
Should you have any questions regarding the upcoming MS4 Permit compliance audit, please feel free
to contact me at [e-mail] or [phone].
Sincerely, / A
Thad Valentine
Environmental Senior Specialist
w -Attach
CC: Charles Brown charles.brown{�i,townofcary.org
Jeanette Powell, MS4 Program Coordinator
DEMLR NPDES MS4 Permit Laserfiche File
Rev. 05222020