NC0074012_AUTHORIZATION TO CONSTRUCT_19980323

NPDES DOCUMENT SCANNIMS COVER SHEET
NPDES Permit:.
NC0074012
Lincoln County/Forney Crk WWTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct
(AtC)
Permit Modification
Complete File - Historical
Speculative Limits
Instream Assessment (67b)
Environmental Assessment (EA)
Permit
History
Document Dater
March 23, 1998
This document is printed oa reuBe paper - ignore any
content on the rever4se "ide

P E A S E
Architecture Engineering Planning Interiors
RECEWFOlov
VtfATER 0 "
March 9,1998
Ms. Carolyn McCaskill, Supervisor
Permits and Engineering Unit
North Carolina Department of Environment, Health,
and Natural Resources
Division of Environmental Management
Post Office Box 29535
Raleigh, North Carolina 27626-0535
t ,7 Ic^c.
RECEIVED
�IvnFG IINIT
MAR 2 3 1998
BY ���-�
Reference: East Lincoln County Water & Sewer District
Forney Creek Wastewater Treatment Plant
Contracts No. 1 and No. 2
Lincoln County, North Carolina
Project No. E-SBF-T-95-0021; Permit No. NCO074012
J.N. Pease Associates' Commission No. 93057-50
Subject: Engineer's Certification
Dear Ms. McCaskill:
Enclosed is the subject certification for the referenced project. If you have any
questions, please call.
Sincerely,
A. Keith West, PE
Vice President
AKW/lh
Enclosure
cc: Mr. Doug Chapman - w/enclosure
J.N. Pease Associates 2925 East Independence Blvd. P.O. Box 18725 Charlotte, NC 28218 704 376-6423

•
ENGINEER'S CERTIFICATION
I Alton Keith West as a duly registered Professional Engineer in the State of
North Carolina, having been authorized to observe (periedieel}yfweekE y/full time) the
construction of the project,
Forney Creek WWTP
(Project)
Lincoln County
(Name or Location)
East Lincoln County
for the Water and Sewer Authori
(Project Owner)
hereby state that, to the best of my abilities; due care and diligence was used in the
observation of the project co ction such that the construction was observed to be built
within subs /ompli intent of the approved plans and specifications.
Registration No. 9576
Date March 4, 1998
Permit No. NC0074012
S
:x SEAL <'
:a i
9576
�'��., KE1W v

State of North Carolina
Department of Environment,
Health and Natural Resources / • •
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary [D E H N R
A. Preston Howard, Jr., P.E., Director
May 1, 1995
Mr. Richard French County Manager
Lincoln County,
115 W. Main Street
Lincolnton, North Carolina 28092
SUBJECT: East Lincoln Water &
Sewer Authority
Permit No. NCO074012
Authorization to Construct
Wastewater Treatment Facilities
Project No. E-SBF-T-95-0021
Lincoln County
Dear Mr. French:
The final plans and specifications for the subject project have been reviewed and found
to be satisfactory.
Authorization is hereby granted for the construction and operation of additions and
modifications to the existing 0.076 MGD wastewater treatment plant to increase capacity to
0.75 MGD to include a new influent pump station with dual 40 Hp, 300.-1300 GPM pumps
with variable frequency drives; a new 9-inch Parshall flume with ultrasonic flow measurement
and recording; a new mechanical bar screen with a manual bypass screen; a new aerated grit
removal basin; new 0.6 MG oxidation ditch with three (3) concentric channels, four (4) - 25
Hp and two (2) 10 Hp rotor aerators; dual 35 ft. diameter final clarifiers; dual chlorine
contact chambers with sulfur dioxide dechlorination; effluent flow measurement with a
rectangular weir and ultrasonic flow measurement and recording; cascade post aeration;
influent and effluent samplers: a D.A.F. sludge thickener; a return sludge pumping station
with dual 75 Hp, 250 - 780 GPM pumps with variable frequencv drives; conversion of the
existing aeration basins (approx .15MG) to aerobic digesters with dual 50 Hp, 1100 SCFM
blowers; conversion of the existing final clarifier to a gravity sludge thickener; a new
thickened sludge pump station with one (1) 5 Hp, 100 GPM pump; a new 0.33 MG sludge
holding tank; a sludge recirculadn&uck loading pump station with dual 7.5 Hp, 500 GPM
pumps; a caustic feed system for pH control consisting of a 5000 gallon storage tank, one (1)
1.0 Hp, 44 GPM recirculation pump, and dual 1.83 GPH feed pumps; and associated
appurtenances site and electrical work.
P.O. Box 29535. Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50%recycled/ 10% post -consumer paper

PAGE 2
The Permittee shall employ an actively State certified wastewater treatment plant
operator to be in responsible charge of the wastewater treatment facilities. Such operator
must hold a valid State Certificate of the grade at least equivalent to the classification
assigned to the wastewater treatment facilities by the Certification Commission. When a new
chief operator must be obtained to be in responsible charge of the new facilities, it is required
that this be done by the time the construction of the facilities is 50% complete.
The Authorization -to -Construct is issued in accordance with Part III; Paragraph A of
NPDES Permit No. NC0074012, issued February 20, 1995 and shall be subject to revocation
unless the wastewater treatment facilities are constructed in accordance with the approved
plans, specifications, and supporting documents; and are in compliance with the conditions
and limitations specified in Pen -nit No. NC0074012.
The Permittee shall have an acceptable sludge analysis and a sludge toxicity analysis
which have been approved by the Division of Environmental Management, Water Quality
Section prior to the disposal of any sludge from the new, wastewater treatment plant. Copies
of the analyses, supporting documents, and approvals shall be submitted to the Division of
Environmental Management's Mooresville Regional Office.
The disposing, selling or free distribution of wet, dried, composted sludge or sludge -like
materials from wastewater facilities without prior review and approval by this Division is
illegal.
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.
One (1) set of final approved plans and specifications is to be forwarded to you for
your files. The copy of the approved plans and specifications shall be maintained on file by
the Owner for the life of the project.
Upon completion of construction and prior to operation of this pemvtted facility, a
certification must be received from a Professional Engineer certifying that the permitted
facility has been installed in accordance with the approved plans and specifications. Mail the
Certification to the Permits and Engineering Urtit, P. 0. Box 29535, Raleigh, North Carolina
27626-0535. (Engineer's Certification Form is attached.)

PAGE 3
If you have any questions or need additional information, please contact Mr. Bill
Hoffman, at [phone], extension 615.
Sincerely,
Attachment
BG:vk
cc: J. N. Pease
Mr. Don Safrit
Mooresville Regional Office
Mr. Tom Fahnestock
Mr. Don Evans
Ms. Valerie Lancaster
Mr. Bennie Goetze, Jr.
Ms. Cindy Finan
DMU
SBF
0
'reston H0aarJr., P.E.