HomeMy WebLinkAboutNC0024228_authorization to construct_20131009hie dccrbzY�z$
AiL ern
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Resources
Water Quality Programs
Pat McCrory Thomas A. Reeder John E. Skvarla, III
Governor Director Secretary
October 9, 2013
Mr. Terry Houk, Assistant Director of Public Services
City of High Point
211 S. Hamilton Street
High Point, North Carolina 27261
SUBJECT: Authorization to Construct
A to C No. 024228A03
City of High Point
Westside Wastewater Treatment Plant
Improvements, Phase 3
Dear Mr. Houk:
A letter of request for an Authorization to Construct was received July 26, 2013, 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 6.2 MGD City of High Point Westside Wastewater
Treatment Facility, with discharge of treated wastewater into Rich Creek in the Yadkin -Pee Dee
River Basin.
This authorization results in an increase in design capacity to 10 MGD, but limits the
permitted capacity to 8.2 MGD, and is awarded for the construction of the following specific
modifications:
New Biological Nutrient Removal (BNR) system consisting of four parallel trains with
total volumes of 0.50 MG anaerobic zone, 0.91 MG 1st stage anoxic zone, 4.95 MG
aerobic zone, 1.48 MG 2nd stage anoxic zone, 0.29 MG re -aeration zone, including fine
bubble diffusers and 40 vertical mixers; new blower/NRCY Building including two (2)
6,074 ICFM blowers, two (2) 4,050 ICFM blowers, and four (4) 6,944 gpm NRCY
pumps; a new final clarifier distribution box; new 130-foot diameter, 15-foot side -water
depth final clarifier; two (2) 3,550 gpm RAS pumps; a new process drain pump station,
including one (1) 1,100 gpm pump; a new clarifier drain pump station including one (1)
800 gpm pump; two (2) 150 gpm non -potable water pumps; associated electrical and
control/SCADA work, sitework, and yard piping, in conformity with the project plans,
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: 919-807-6300 \ FAX: 919-807-6492
Internet: www.ncwateroualitv.orq
An Equal Opportunity \ Affirmative Action Employer
One
North Carolina
Naturally
Mr. Terry Houk, Assistant Director of Public Services
October 9, 2013
Page 2
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. NC0024228 issued June 20, 2013, and shall be subject to revocation unless
the wastewater treatment facilities are constructed in accordance with the conditions and
limitations specified in Permit No. NC0024228.
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 Winston-Salem Regional Office, telephone number (336) 771-5000, 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: Attn: Ron Berry, DENR/DWR,
NPDES Unit, 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
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 approved plans and specifications shall be maintained on file by the
Permittee for the life of the facility.
Mr. Terry Houk, Assistant Director of Public Services
October 9, 2013
Page 3
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 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.
One (1) set of approved plans and specifications is being forwarded to you. If you have
any questions or need additional information, please contact Seth Robertson, P.E. at telephone
number (919) 707-9175.
Sincerely,
Thomas A. Reed-r
kp:sr
cc: C. Todd Johnson, P.E., Hazen and Sawyer, 4011 WestChase Blvd., Suite 500, Raleigh, NC 27607
Davidson County Health Department
DWR Winston-Salem Regional Office, Water Quality Section
DWR, Point Source Branch, NPDES Program
Ken Pohlig, P.E.
ATC File