NC0087645_Authorization to Construct_20090929

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9 Dewberry'
September 29, 2009
Mr. Ken Pohlig, P.E.
Construction Grants & Loans
NC Division of Water Quality
1633 Mail Service Center
Raleigh, NC 27699-1633
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2301 Rearoods Drive 919.881.9939
Suite 200 919.881.9923 fox
Raleigh, North Carolina 27607 w+nw.dewhartymm
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Reference: Milton, North Carolina (, a S&
Wastewater Treatment Plant Engineer's Certification 3%
Authorization to Construct q 087645A01�N fti
Dewberry Project#3lt)
Dear Mr. Pohlig:
The purpose of this letter is to provide the Engineer's Certification for the above reference project. Per
our telephone conversation on September 29, 2009 it is understood that this certification will cover the
facilities that have been constructed and changes from the Authorization to Construct dated May 30, 2007
will be noted. This wastewater treatment plant is permitted for a flow of 25,000 gpd trader NPDES
Permit No. NC0087645.
The Authorization to Construct resulted in a design and permitted capacity of 25,000 gpd, and was
awarded for the construction of the following specific facilities:
"A 7,500 gallon equalization tank with influent bar screen and dual 80 gpm equalization pumps; a
10,000 gallon aeration tank using a fixed -film rotating aerator, a back-up 100 cf n air blower; a
144 square foot clarifier with air-lift sludge return pumps; a UV disinfection system rated at
25,000 gpd; an effluent flow meter; an 8 inch gravity outfall pipe; dual 3,000 gallon sludge
holding tanks; a 25 kW emergency generator; and associated yard piping, in conformity with the
project plans, specifications, and other supporting data filed and approved by the Department of
Environment and Natural Resources"
In order to comply with North Carolina General Statute 133-3, a performance specification was
developed and alternate equipment was approved during the bidding and submittal phases of the project.
It was determined that this equipment would meet the performance specification requirements.
The Engineer's Certification is attached to this letter and all changes have been included in the description
of the wastewater treatment plant. Should you have any questions or concerns, please call our office at
[phone].
Sincerely,
Dewberry && Davis,O'Inc.�/
at ew 13. West, P.E., LEED AP
Project Engineer
Enclosures
Cc: Larry Jeffress, Mayor, Town of Milton
Jenny Graznak, NC Division of Water Quality
Ken Long, H.G. Reynolds Co., Inc.
P:150000841V,dm\ConLwpondencc\Lettcm\2009.09. 29-CG&L-Pohlig-Engineers Cenitication.dw
Dewberry & Davis, Inc.

Town of Milton
Wastewater Treatment Plant
A to C No. 087645AOI
Issued May 30, 2007
Engineer's Certification
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t PAPUf+61"Jy registered 6 • V LIE � , as a duly Professional Engineer in the State of
North Carolina, having been authorized to observe periodically the construction of the Town of Milton
Wastewater Treatment Plant, located on Doll Branch Road, Milton, NC, in Caswell County, hereby state
that, to the best of my abilities, due care and diligence was used in the observation of the following
construction:
A 9,400 gallon equalization tank with influent bar screen, a 32 cf n air blower and dual 105 gpm
equalization pumps; a 25,000 gallon aeration tank using a fixed film suspended media system
with 320 square feet of suspended media and dual 166 cf n air blowers; a 100 square foot clarifier
with air-lift sludge return pumps; a UV disinfection system rated at 25,000 gpd; an effluent flow
meter; and 8-inch gravity outfall pipe; dual 3,000 gallon sludge holding tanks, a 36 kW
emergency generator, and associated yard piping, in conformity with the project plans,
specifications, and other supporting data subsequently filed an approved by the Department of
Environment and Natural Resources.
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.
We understand that the limits associated with the permitted flow of 25,000 gpd now apply.
SignatwAa-
_ Registration No.
Date MIX Q
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310
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034921
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It Dewberry'

May 30, 2007
The Honorable Walter L. Thomas, IV, Mayor
Town of Milton
P.O. Box 85
Milton, North Carolina 27305
SUBJECT:
Dear Mayor Thomas:
Michael F. Easley. Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
v,vnmu o, ..mc, �uwny
J U N K 5 2007 D
DENR - WATER OU ALITY
POINT SOURCE
Authorization to Construct
A to C No. 087645AOI
Town of Milton
Wastewater Treatment Plant
Caswell County
A letter of request for Authorization to Construct was received March 28, 2007, by the
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 a new 25,000 gpd
Town of Milton Wastewater Treatment Plant, with discharge of treated wastewater into County
Line Creek in the Roanoke River Basin.
This authorization results in a design and permitted capacity of 25,000 gpd, and is
awarded for the construction of the following specific facilities:
A 7,500 gallon equalization tank with influent bar screen and dual 80 gpm equalization
pumps; a 10,000 gallon aeration tank using a fixed -film rotating aerator; a back-up 100 cfm
air blower; a 144 square foot clarifier with air-lift sludge return pumps; a UV disinfection
system rated at 25,000 GPD; an effluent flow meter; an 8-inch gravity outfall pipe; dual
3,000 gallon sludge holding tanks; a 25 kW emergency generator; and associated yard
piping, 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 III, Paragraph A of
NPDES Permit No. NCO087645 issued March 16, 2004, and shall be subject to revocation unless
the wastewater treatment facilities are constructed in accordance with the conditions and
limitations specified in Permit No. NC0087645.
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 North Carolina Division of Water Quality.
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 this Division, such as the construction of additional or replacement wastewater
treatment or disposal facilities.
lV r`hCarolina
,�0ai
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh. NC 27699-1617 Phone [phone] Customer Service
Internet: ^s.ve' ::r:RiU 512 N. Salisbury St. Raleigh, NC 27604 FAX [phone]
An Equal OpporlunitylAfiirmafive Action Employer — 50% RecycleNl0% Post Consumer Paper

The Honorable Walter L. Thomas, IV, Mayor
May 30, 2007
Page 2
The Winston-Salem Regional Office, telephone number [phone], 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 Cecil G. Madden, Jr., P.E.,
Construction Grants & Loans, DWQ / DENR, 1633 Mail Service Center, Raleigh, NC 27699-
1633.
Upon classification of the wastewater treatment facilities by the Water Pollution Control
System Operators Certification Commission (WPCSOCC), the Permittee shall designate and
employ a certified operator to be in responsible charge (ORC) and one or more certified
operator(s) to be back-up ORC(s) of the facilities in accordance with 15A NCAC 8G .0201. The
ORC shall visit the facilities in accordance with 15A NCAC 8G .0204 or as specified in this
permit and shall comply with all other conditions specified in these rules.
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
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 of Water Quality 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.

The Honorable Walter L. Thomas, IV, Mayor
May 30, 2007
Page 3
One (1) set of approved plans and specifications is being forwarded to you. If you have
any questions or need additional information, please contact Cecil G. Madden, Jr., P.E. at
telephone number [phone].
Sincerely,!
?anW.imek, RE
kp:cgm
cc: Amanda L. Bader, P.E., Dewberry & Davis, Inc., Raleigh, NC
Caswell County Health Department
DWQ Winston-Salem Regional Office, Surface Water Protection
DWQ Technical Assistance and Certification Unit
DWQ, Point Source Branch, NPDES Program
Daniel Blaisdell, P.E.
Cecil G. Madden, Jr., P.E.
Ken Pohlig, P.E.
ATC File