SW3171003 (2)

Patterson, Robert D
From: Patterson, Robert D
Sent: Friday, December 29, 2017 7:48 AM
To: 'Brent Cowan'
Cc: Ronnie Rovillos
Subject: RE: [External] FC Carolinas Soccer Complex
Sounds good. Please provide pdfs of all revisions; and 2 hardcopies of revised plan sheets, and 1 hardcopy of other
documents. Pdfs must be uploaded using the form at: https://edocs.deg.nc.gov/Forms/SW Prosect Submittal
Thanks and hope you all have a good new year!
Robert D. Patterson, P.E.
Environmental Engineer
919-807-6369 1 Robert. [e-mail]
https://deg.nc.goy/about/divisions/energy-mineral-land-resources/stormwater
NC Dept. of Environmental Quality
DEMLR Stormwater Program
512 N. Salisbury St.
1612 Mail Service Center
Raleigh, NC 27699-1612
Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties.
From: Brent Cowan [mailto:[e-mail]]
Sent: Thursday, December 28, 2017 3:39 PM
To: Patterson, Robert D <[e-mail]>
Cc: Ronnie Rovillos <[e-mail]>
Subject: [External] FC Carolinas Soccer Complex
CAUTION: External email. Do not click links or open attachments unless verified. Send all suspicious email as an attachment to
[e-mail].
Robert,
I have looked over the calcs and have confirmed that the "adjusted" water quality volume is indeed 75% of the
63,848 cf volume. Since using 75% of the WQv is only allowed for sand filters, I will revise the calcs and sheet
C2.2 to reflect raising the weir from 647.70 to 648.25. I'll get this updated and email to you a revised sheet
C2.2 and calculation package this evening (or first thing tomorrow at the latest). Sorry for the oversight.
Thanks,
Anthony Brent Cowan, P.E., LEED°AP
The Isaacs Group, P.C.
8720 Red Oak Blvd., Ste. 420
Charlotte, NC 28217
P:704-227-9402 F:704-527-8335
Web: www.isaacsqrp.com