NC0065684_Renewal (Application)_20160426

AOU A. Aqua North Carolina,Inc. www.aquanorthcarolina.com
4163 Sinclair Street
Denver, NC 28037
April 26, 2016
John Hennessey
Supervisor, Water Quality Permitting Section
1617 Mail Service Center
Raleigh, NC 276999-1617
Re: Renewal Application:
Country Woods East WWTP
NC0065684
Union County
Dear Mr. Hennessey: - . •, . _ -
y, .e�.. :i.:'�r�•r: ft.:T..� ati. ,: •c• �`•j`Vi. .Lc; :i .f• - _
The NPDES;Permit;for,County Woods East WWTP; issued on April 1,2011 is set to expire on✓
April 30,,2016,_::In 2015,;the,geographical locationof thew„astewater treatment plant,., ,
experienced several,.extremely;hi-ghirainfallevents and in.August;of 2015,.a large rainfall event
caused•theialready high groundwater table to force major,component of the lower plant to
be lifted out of the ground;. Immediately,after_the_event,Aqua contacted the regional office
to make them aware of the•situation and advised them thatit no choice other than to re-
route the flow from the,lower plant to the upper plant via emergency pumps. That same
month,Aqua hired Freese &Nichols'to evaluate and engineer a permanent plan. While
anticipating that a plan would be developed soon,Aqua went forth with submitting its Permit
Renewal Application to ensure that it met the statutory requirement of submitting the
application six (6) months prior to expiration. Now that it has received the final plan from
Freese and Nichols, Aqua concludes that it is not economical to repair or rehabilitate the
lower plant for complete waste water treatment, but instead use the lower plant for Flow
Equalization, and rely on the majority of the secondary treatment to take place at the upper
plant.
In response to our meeting on April 13`h,Aqua wishes to provide the following information and
request modification to its permit. •
;I r ➢,,'Cu,rrent 12 t month;Average flow,to the.plant is 0.291 MGD._
,J.J 0. .
➢.,.Change the 0:35 MGD,Effluent limitation page:to r0.480.MGD'.to refried the.;
existing-approved treatment:capacity at the upper,plant alone.:
➢.:Keep,the limits on:effluent characteristicsa'nd,,monitoring requirements same as
�.1 r - that of 0.350 MGD: �: f .
t • r�T,, .'v i... '_.:f.�. � � ..:: � : a �-..`.; r: . . {'./ �_.• _.T � .
➢ Keep the 0.67 MGD'limitation page unchanged to allow fo.r future expasio. n once
the 12.month average flows exceeds 0.384 MGD (80% of 0.480 MGD).
An Aqua America Company

We appreciate your consideration of these modifications. If you have any questions regarding
this change, please do not hesitate to contact me.
Sincerely,
a 11-4-4s-„„L.,
Michael A. Melton
Regional Manager for compliance
Aqua North Carolina, Inc.
cc: Laurie Ison, Regional Supervisor,Aqua North Carolina, Inc.
Michael Poulios, PE, Engineering Manager,Aqua North Carolina, Inc.
Bryan C. Jann, PE, Principal, Freese and Nichols, Inc.