NCG020940_Municapal Sewer Letter_20190522

LAVA
WILLIAM PINNIX, P.E.
Director
May 23, 2019
Brunswick County Engineering Services
P.O. Box 249
75 Courthouse Drive N.E., Bldg I
Bolivia NC 28422
Mr. Tommy Scheetz, E.I.
Norris & Tunstall Consulting Engineers,
1429 Ash -Little River Road
Ash, North Carolina 28420
Re: Lennon Sand Mine #3
PID 16800115 and1680011501
Dewatering Discharge to county sewer system
Dear Mr. Scheetz,
BEVERLY ADAMS
Engineering Administrator
Brunswick County does not want to accept the proposed sand mine dewatering operations discharge into our
sewer system for the following reasons:
1) Brunswick County Sewer Use Ordinance
Section 2.1 — Prohibited Discharge Standards
(b) Specific Prohibitions: No user shall contribute or cause to be contributed into the POTW
(Publicly Owned Treatment Works) the following pollutants, substances, or wastewater:
(b) (13): Storm water, surface water, ground water, artesian well water, roof runoff, subsurface
drainage, swimming pool discharge, condensate, deionized water, noncontact cooling
water, and unpolluted industrial wastewater, unless specifically authorized by the POTW
Director
2) County 18-inch-high pressure transmission force main on Hwy 211
At this location the county does not have a sewer collection system — we have a high-pressure sewer
transmission force main operating up high head and flow conditions carrying wastewater to the sewer
treatment plant. The county limits connections to these transmission mains due to operational concerns
and because they are not a collection system.
My recommendation for this discharge is to treat it onsite as groundwater dewatering with the appropriate
requirements of a NCDEQ-DEMLR Sedimentation & Erosion Control permit as it is just groundwater removed in
a dewatering operation.
Regards,
D191 M .d by W. L Ph.ir P.E.
Wm. L. Pinnix, P.E. o el w k'C­�h N:C"• o�" 19°...mg
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William L. Pinnix, P.E.
Director of Engineering
[phone] — office direct
TELEPHONE [phone] • FAX [phone]