NC0025534_Authorization to Construct_20010522

NPDES DOCUMENT !;CANNING COVER SHEET
ANN
.41111.
.4106,
ANN
ANIk
NPDES Permit:
NC0025534
Hendersonville WWTP
Document Type:
Permit Issuance
Wasteload Allocation
,n
Authorization to Construct
(AtC)
Permit Modification
Complete File - Historical
Correspondence
Speculative Limits
Instream Assessment (67b)
Environmental Assessment (EA)
Permit
History
Document Date:
May 22, 2001
This document is printed on reuse paper - ignore any
content on the rezrerse side

f\' fD&D U i Michael F. Easley
Y Governor
William G. Ross, Jr. Secretary
Department of Environment and Natural Resources
Kerr T. Stevens
Division of Water Quality
May 22, 2001
Chris A. Carter, City Manager
City of Hendersonville
Post Office Box 1670
Hendersonville, North Carolina 28793-1670
SUBJECT: City of Hendersonville
New Wastewater Treatment Plant
Permit No. 0025534ACA
Authorization to Construct
Project No. CS370444-07
Henderson County
Dear Mr. Carter:
The request for modification of the Authorization to Construct to eliminate auxiliary
power and increase the size of the blowers has been reviewed and found to be satisfactory. The
revised project description is found below.
Authorization is hereby granted for the construction and operation of the 4.8 MGD City
of Hendersonville Wastewater Treatment Plant to include an influent pump station with a trash
rack and four pumps rated at 1500 gpm, 2800 gpm, 2700 gpm, and 5100 gpm each; dual
mechanically cleaned bar screens, dual grit collection chambers with chain and bucket collection,
dual 2.4 MG aeration basins, three 4000 SCFM centrifugal blowers, dual 90 ft diameter clarifiers
with 14 ft sidewater depth, a recycle pump station with a 1800 gpm pump and a 2500 gpm pump,
dual traveling bridge effluent filters, an ultraviolet disinfection basin, dual 50 foot diameter
gravity thickeners, belt presses for sludge dewatering, sludge pasteurization facilities; and all
clearing, grading, and appurtenances.
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 is
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.
NCDENR
Customer Service 1 800 623-7748 Construction Grants & Loans Section 1633 Mail Service Center Raleigh, NC 27699-1633 [phone]
FAX [phone] E-Mail Address www.nccgl.net

2
The Authorization -to -Construct is issued in accordance with Part III, Paragraph A of
NPDES Permit No. NC0025534, issued February 3, 1999, 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 Permit No. NC0025534.
The Permittee shall have an acceptable sludge analysis and a sludge toxicity analysis
which have been approved by the Division of Water Quality 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 Water Quality's Asheville 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 specification 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 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 Cecil G. Madden, Jr., P.E.,
Construction Grants & Loans, DWQ / DENR, 1633 Mail Service Center, Raleigh, NC 27699-
1633.

t
3
If there are any questions concerning this matter, please do not hesitate to contact Mr.
Cecil Madden at [phone].
Attachment
CGM/dr
cc: Willis Engineers
Asheville Regional Office
Valerie Lancaster
Central Files
NPDES Unit
Daniel Blaisdell, P.E.
Cecil G. Madden, Jr., P.E.
Robert Massengill, P.E.
Amy Simes, P.E.
SRF
Sincer
err T. Stevens
Director

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 improvements to the Hendersonville WWTP, located in
Henderson County for the City of Hendersonville, hereby state that, to the best of my abilities,
due care and diligence was used in the observation of the following construction:
• Influent pump station with a trash rack and four pumps rated at 1500 gpm, 2800 gpm,
2700 gpm, and 5100 gpm each,
• Dual mechanically cleaned bar screens,
• Dual grit collection chambers with chain and bucket collection,
• Dual 2.4 MG aeration basins,
• Three 4000 SCFM centrifugal blowers,
• Dual 90 ft diameter clarifiers with 14 ft sidewater depth,
• Recycle pump station with a 1800 gpm pump and a 2500 gpm pump,
• Dual traveling bridge effluent filters,
• Ultraviolet disinfection,
• Dual 50 foot diameter gravity thickeners,
• Belt presses for sludge dewatering,
• Sludge pasteurization facilities,
• Yard pipe and associated appurtenances.
I certify that the construction of the above referenced project was observed to be built within
substantial compliance and intent of the approved plans and specifications.
Signature Registration No.
Date
Mail this Certification to:
Cecil G. Madden, Jr., P.E.
Construction Grants & Loans
1633 Mail Service Center
Raleigh, NC 27699-1633