NC0071943_Authorization to construct_19980220

NCDENR .
JAMES B. HUNT JR.
GOVERNOR
WAYNE MCDEV17T T ;;
.SECRETARY Pri
..A.•PRE9TON HOWARD,
y�JR P.E.'((
DIRECTOR ' _=' �,.�'+"•r
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s
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
February 20, 1998
J. Richard Howell, Jr., Town Administrator
Town of Boiling Springs
Post Office Box 1014
Boiling Springs, North Carolina
SUBJECT:
Dear Mr. Howell:
DIVISION OF WATER QUALITY
Wastewater Treatment Plant Expansion
Permit No. N00071943
Authorization to Construct
Wastewater Treatment Facilities
Project No. CS370757-02
E-SRF-T- [93&96] - 0074
Boiling Springs, North Carolina
The final plans and specifications for the subject project have been reviewed and
found to be satisfactory.
Authorization is hereby granted for the construction of improvements to upgrade
and expand the existing Town of Boiling Springs Wastewater Treatment Plant from 0.3
MGD to 0.6 MGD capacity to consist of headworks modifications including raising the
wall height of the existing screen chamber, installation of a new mechanically cleaned
bar screen, grit chamber, construction of a new rectangular aeration basin with coarse
bubble diffusers, new blowers, two (2) new 35 ft. by 12 ft. SWD secondary clarifiers,
new scum and recycle pump stations, a new ultrasonic flow meter, new ultraviolet (UV)
disinfection equipment and chamber, a new rectangular sludge digester, a new 480 sq. ft.
operations building with storage, a new 125 KW generator for emergency standby
power, improvements to the existing gravel access road, and all associated site work,
yard piping, and electrical work. The existing aeration basin and digesters will be
modified and a new floating decanter will be added. New diffusers will be added to the
existing plant at the completion of the project.
Alternate treatment facilities based on the Aeromod treatment system will be bid
and may be selected, at the Owner's option, in lieu of the conventional extended
aeration system. Note that State Revolving Loan participation will be limited to the
least cost system.
CONSTRUCTION GRANTS & LOANS SECTION
P.O. BOX 29S79, RALEIGH, NORTH CAROLINA 27626-0579
PHONE [phone] FAX [phone]
AN EQUAL OPPORTUNITY /AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/10% POST -CONSUMER PAPER

Do not proceed with construction until the Authorization -to -Award package and EEO and
MBE documentation/certification have been reviewed, and you are in receipt of our approval, if
funding is desired for project construction.
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. NC0071943, issued July 7, 1997 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. NC0071943.
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 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 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 approved plans and specifications. Mail
the Certification to the Permits and Engineering Unit, P. O. Box 29535, Raleigh, North
Carolina 27626-0535.
If there are any questions concerning this matter, please do not hesitate to contact Mr.
Cecil Madden at [phone].
Sincerely,
l�� 4. (�
f6reston Howard, Jr., P.E.
Attachment
JR/pe
cc: West and Associates
David Barnwell (OSHA)
Mooresville Regional Office
CIU
PMB
Valerie Lancaster
John Royal
DMU
SRF
Central Files
��PDES Unit