NCG020123_Email RE Additional Pit Discharge Outfall_20191017

Georgoulias, Bethany
From: Georgoulias, Bethany
Sent: Thursday, October 17, 2019 8:53 AM
To: Phillip Pressley
Cc: Brian North; Valentine, Thad
Subject: RE: [External] Additional Pit Discharge Outfall - Martin Marietta Benson Quarry
Phillip,
As long as the mine updates its Stormwater Pollution Prevention Plan and monitoring protocols accordingly, and the
new discharge point does not result in water quality standard violations, adding the new outfall is not a
problem. Because it is discharging to the same waterbody, a modification to the Certificate of Coverage is not
necessary. I will add the information to the permit COC file.
Regards,
Bethany Georgoulias
Environmental Engineer
Stormwater Program, Division of Energy, Mineral, and Land Resources
N.C. Department of Environmental Quality
919 707 3641 office
bethany.georgoulias@ncdenngov
512 N. Salisbury Street, Raleigh, NC 27604 (location)
1612 Mail Service Center, Raleigh, NC 27699-1612 (mailing)
Website: http://deq.nc.gov/about/divisions/energy-mineral-land-resources/stormwater
From: Phillip Pressley [mailto:[e-mail]]
Sent: Wednesday, October 16, 2019 11:23 AM
To: Georgoulias, Bethany <[e-mail]>
Cc: Brian North<[e-mail]>
Subject: [External] Additional Pit Discharge Outfall - Martin Marietta Benson Quarry
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Hi Bethany,
I hope you are well. We are planning to do some work on a pond at Martin Marietta's Benson Quarry
(NCG020123). The project would create a pond overflow that would discharge offsite approximately 100 yards
downstream of the current discharge, but it would not remove the existing outfall. All discharges from the proposed
outfall would go through the same treatment systems as the current outfall with an additional clarification pond prior to
discharge. The attached image shows the locations and coordinates of the current and proposed outfalls. Do you find
this new outfall addition to be acceptable?
Thanks,
Phillip

Phillip N. Pressley, PE
Sr. Environmental Engineer I NC East District
Martin Marietta
2700 Wycliff Road Suite 104, Raleigh, NC 27607
t. [phone] m. [phone] f. [phone]
e. [e-mail]
www.martinmarietta.com