NC0024295_Authorization to Construct_20171205

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Water Resources
ENVIRONMENTAL QUALITY
December 5, 2017
Mr. J Bryce Mendenhall
Vice President of Operations
4944 Parkway Plaza Blvd
Suite 375
Charlotte, North Carolina 28217
ROY COOPER
Govei not
MICHAEL S REGAN
Seci etnry
LINDA CULPEPPER
/ntei un Du ector
SUBJECT: Authorization to Construct
A to C No. 024295A02
Carolina Water Service, Inc.
Connestee Falls WWTP #1
NPDES Permit No. NCO024295
Dear Mr. Mendenhall:
A letter of request for an Authorization to Construct was received September 21, 2017, by
the Division of Water Resources (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 0.30 MGD Connestee Fall Wastewater Treatment
Plant #1, with discharge of treated wastewater into the French Broad River in the French Broad
River Basin.
This authorization results in an increase in design and permitted capacity to 0.36 MGD,
and is awarded for the construction of the following specific modifications:
Demolition of the existing grit chamber, aeration basins, aerobic digester, clarifiers,
and other retired support facilities; installation of a new automatic vertical fine screen
and screening auger with capacity to handle 1.15 MGD flow; replacement and upgrade
of existing influent lift station pumps with two (2) new 625 GPM pumps with VFD
controls; installation of a new SBR system consisting of two (2) 9,410 gallon SBR
basins, one (1) 101,260 gallon post -EQ basin, one (1) 126,970 gallon digester, piping,
and controls; installation of three (3) new 499 SCFM SBR blowers, one (1) new 144
SCFM post aeration blower, one (1) new 240 SCFM digester blower, piping, and
controls; installation of two (2) new 1,831 GPM SBR pumps and one (1) new 1,098
GPM digester pump, piping, and controls; installation of two (2) fixed 384 ft2 plate
cloth media filters with each containing four (4) cloth filtering elements, air scour
system, piping, and controls; installation of two (2) new UV disinfection units with
each unit capacity rated for 0.90 MGD flow with channel, automatic controls, and
monitoring; installation of new effluent flow meter channel; in conformity with the
project plans, specifications, and other supporting documentation comprising the ATC
Permit Application package submitted to the Department of Environmental Quality.
State of North Carolina I Environmental Quality I Water Resources
512 N Salisbury Street 11612 Mail service Center I Raleigh, North Carolina 27699-1612
Phone [phone]

Mr. J Bryce Mendenhall, Vice President of Operations
December 5, 2017
Page 2 of 3
In addition to the appropriate construction items approved in this Authorization to
Construct, the following work scope items stated in the application were deemed as maintenance
events and require no approval:
• Miscellaneous building improvements and associated sitework and electrical work
This ATC is issued in accordance with Part III, Paragraph A of NPDES Permit No.
NC0024295 issued effective December 1, 2017, and shall be subject to revocation unless the
wastewater treatment facilities are constructed in accordance with the conditions and limitations
specified in Permit No. NC0024295.
It is the Owner's responsibility to ensure that the as -constructed project meets the
requirements of all applicable regulations and statutes, the ATC Permit Application package, and
all of the requirements contained herein. Failure to comply may result in penalties in accordance
with North Carolina General Statute §143-215.6A through § 143-215.6C.
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 constuaction 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 and the ATC Permit Application package.
Mail the Certification to: Division of Water Resources, WQ Permitting — NPDES, 1617 Mail
Service Center, Raleigh, NC 27699-1617.
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 II, III and IV facility at least daily, excluding

Mr. J Bryce Mendenhall, Vice President of Operations
December 5, 2017
Page 3 of 3
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 project 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 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.
The issuance of this ATC 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.
If you have any questions or need additional information, please contact Bing Bai at
telephone number [phone].
Sincerely,
P—Vrj &Wr
,2 Linda Culpepper
Interim Director, Division of Water Resources
With Engineer's Certificate attached:
cc: DWR Asheville Regional Office, Water Quality Programs
Central Files
ecopy: Dale C. Stewart, P.E.
Land Design
Email: [e-mail]
NPDES File
Without Engineer's Certificate attached:
cc: Transylvania County Health

Carolina Water Services, Inc.
Connestee Falls Wastewater Treatment Plant #1
NPDES No. NCO024295
Authorization to Construct No. 024295A02
Issued December 5, 2017
Engineer's Certification
I, , as a duly registered Professional Engineer in
the State of North Carolina, having been authorized to observe (periodically/weekly/full time)
the construction of the modifications and replacements to the Connestee Falls Wastewater
Treatment Plant #1, located in Transylvania County, hereby state that, to the best of my abilities,
due care and diligence was used in the observation of the following construction:
Demolition of the existing grit chamber, aeration basins, aerobic digester,
clarifiers, and other retired support facilities; installation of a new automatic
vertical fine screen and screening auger with capacity to handle 1.15 MGD flow;
replacement and upgrade of existing influent lift station pumps with two (2) new
625 GPM pumps with VFD controls; installation of a new SBR system consisting
of two (2) 9,410 gallon SBR basins, one (1) 101,260 gallon post -EQ basin, one
(1) 126,970 gallon digester, piping, and controls; installation of three (3) new 499
SCFM SBR blowers, one (1) new 144 SCFM post aeration blower, one (1) new
240 SCFM digester blower, piping, and controls; installation of two (2) new 1,831
GPM SBR pumps and one (1) new 1,098 GPM digester pump, piping, and
controls; installation of two (2) fixed 384 ft2 plate cloth media filters with each
containing four (4) cloth filtering elements, air scour system, piping, and controls;
installation of two (2) new UV disinfection units with each unit capacity rated for
0.90 MGD flow with channel, automatic controls, and monitoring; installation of
new effluent flow meter channel; in conformity with the project plans,
specifications, and other supporting documentation comprising the ATC Permit
Application package submitted to the Department of Environmental Quality.
I certify that the construction of the above referenced project was observed to be built within
substantial compliance, intent and in conformity with all applicable regulations and statutes and
the project plans, specifications, and other supporting documentation comprising the
Authorization to Construct Permit Application package.
Signature
Date
Registration No.
Mail this Certification to: Attn: Bing Bai SEAL
Complex Permitting Unit
DEQ/DWR/Water Quality Programs
1617 Mail Service Center
Raleigh, NC 27699-1617