NC0020940_Authorization to Construct_20100205

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
February 5, 2010
Ms. Anna Payne
Town of Murphy
5 Woford Street
Murphy, North Carolina 28906
SUBJECT: Authorization to Construct
A to C No. 020940A01
Town of Murphy
Murphy WWTP
Cherokee County
Project No. XP-95419809-0
Dear Ms. Payne:
A letter of request for an Authorization to Construct was received September 25, 2009,
by the Division of Water Quality(Division), and final plans and specifications for the subject
project have been reviewed and found to be satisfactory. Authorization is hereby granted for the
construction of modifications to the existing 1.4 MGD Wastewater Treatment Plant, with
discharge of treated wastewater into the Hiwassee River in the Hiwassee River Basin.
This authorization results in no increase in design or permitted capacity and is awarded
for the construction of the following specific modifications:
Conversion of an existing digester into an additional 120,878 gallon chlorine contact
chamber; conversion of an abandoned basin into a 266,568 gallon digester with course
bubble aeration diffusers and two (2)additional 60 HP blowers; installation of a new
chlorine disinfection system, dechlorination system, and a new flow measurement
system, in conformity with the project plans, specifications, and other supporting data
subsequently filed and approved by the Department of Environment and Natural
Resources.
This Authorization to Construct is issued in accordance with Part I11, Paragraph A of
NPDES Permit No. NCO020940 issued August 24, 2007, and shall be subject to revocation
unless the wastewater treatment facilities are constructed in accordance with the conditions and
limitations specified in Permit No. NC0020940.
1617 Mail Service Center,Raleigh,North Carolina 27699-1617 title
Location:512 N.Salisbury St.Raleigh,North Carolina 27604 Nofth Cal'ol l na
Phone:[phone] FAX-919 807 6492 i Customer Service:1 877 623 6748
Internet:wwvv.ncwaterquality.org Vatimally
An Equal Opportunity'+Affirmative A.vtion Employer

Ms. Anna Payne
February 5, 2010
Page 2
The sludge generated from these treatment facilities must be disposed of in accordance
with G.S. 143-215.1 and in a manner approved by the Division.
In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including those as may
be required by the Division, such as the construction of additional or replacement wastewater
treatment or disposal facilities.
The Asheville Regional Office, telephone number(828) 296-4500, shall be notified at
least forty-eight (48)hours in advance of operation of the installed facilities so that an on site
inspection can be made. Such notification to the regional supervisor shall be made during the
normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State
Holidays.
Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted facility
has been installed in accordance with the NPDES Permit, this Authorization to Construct and the
approved plans and specifications. Mail the Certification to: Construction Grants& Loans,
DWQ/DENR, 1633 Mail Service Center, Raleigh, NC 27699-1633.
Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of the
wastewater treatment facilities. The operator must hold a certificate of the type and grade at
least equivalent to or greater than the classification assigned to the wastewater treatment
facilities by the Certification Commission.
The Permittee must also employ a certified back-up operator of the appropriate type and
grade to comply with the conditions of T15A:8G.0202. The ORC of the facility must visit each
Class I facility at least weekly and each Class 11, 1I1 and IV facility at least daily, excluding
weekends and holidays, must properly manage the facility, must document daily operation and
maintenance of the facility, and must comply with all other conditions of T15A:8G.0202.
A copy of the approved plans and specifications shall be maintained on file by the
Permittee for the life of the facility.
During the construction of the proposed additions/modifications, the permittee shall
continue to properly maintain and operate the existing wastewater treatment facilities at all times,
and in such a manner, as necessary to comply with the effluent limits specified in the NPDES
Permit.
You are reminded that it is mandatory for the project to be constructed in accordance
with the North Carolina Sedimentation Pollution Control Act, and when applicable, the North

Ms. Anna Payne
February 5, 2010
Page 3
Carolina Dam Safety Act. In addition, the specifications must clearly state what the contractor's
responsibilities shall be in complying with these Acts.
Prior to entering into any contract(s) for construction, the recipient must have obtained all
applicable permits from the State.
Failure to abide by the requirements contained in this Authorization to Construct may
subject the Permittee to an enforcement action by the Division in accordance with North
Carolina General Statute 143-215.6A to 143-215.6C.
The issuance of this Authorization to Construct does not preclude the Permittee from
complying with any and all statutes, rules, regulations, or ordinances which may be imposed by
other government agencies (local, state, and federal) which have jurisdiction.
One (1) set of approved plans and specifications is being forwarded to you. If you have
any questions or need additional information, please contact Seth Robertson, P.E. at telephone
number(919) 715-6206.
Sincerely,
Ks
Coleen H. Sullins
AR:sr
cc: Michael J. Waresak, P.E. —McGill Associates, P.A., 55 Broad Street, Asheville, NC 28801
Cherokee County Health Department
DWQ Asheville Regional Office, Surface Water Protection
Technical Assistance and Certification Unit
Point Source Branch,NPDES Program
Anita E. Reed, P.E.
STAG File Project No. XP-95419809-0