NC0023965_authorization to construct_19890927

State of North Carolina
Department of Environment, Health and Natural Resources
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor
William W. Cobey, Jr., Secretary
September 27, 1989
Mr. John Bauer
City of Wilmington
P.O. Box 1810
Wilmington N.C. 28401
R. Paul Wilms
Director
Subject: Permit No. NC0023965
Authorization to Construct
City of Wilmington
Wastewater Treatment Facility
New Hanover County
Dear Mr. Bauer:
A letter of request for an Authorization to Construct was received August 25, 1989 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 modifications to the existing
wastewater treatment plant. These modifications consist of the construction of an inteiiiiediate
pump station with three (3) 8 MGD pumps and high water alarms, a .85 MGD aeration basin with
dual 5000 cfm blowers, flow splitter box, dual 816,000 gallon clarifiers, a RAS/scum pumping
station, modification of the secondary sludge pump station to include replacement of pumps with
three (3) 10 HP pumps and the addition of sludge thickening by polymer addition with discharge of
treated wastewater into the Cape Fear River.
This Authorization to Construct is issued in accordance with Part III paragraph B of
NPDES Peiuiit No. NC0023965 issued November 1, 1984, voids the Authorization to Construct
issued June 23, 1989 and shall be subject to revocation unless the wastewater treatment facilities
are constructed in accordance with the conditions and limitations specified in Permit No.
NC0023965.
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 Environmental
Management.
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.
The Wilmington Regional Office, phone no. [phone], shall be notified at least
forty-eight (48) hours in advance of operation of the installed facilities so that an in -place
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 Peiuiit, this Authorization to Construct and the
approved plans and specifications. Mail the Certification to the Permits and Engineering Unit,
P.O. Box 27687, Raleigh, NC 27611.
The Permittee shall employ a certified wastewater treatment plant operator to be in
responsible charge of the wastewater treatment facilities. The operator must hold a certificate of the
grade at least equivalent to the classification assigned to the wastewater treatment facilities by the
Certification Commission. Within thirty days after the wastewater treatment facilities are 50%
complete, the Permittee must submit a letter to the Certification Commission which designates the
operator in responsible charge.
A copy of the approved plans and specifications shall be maintained on file by the Permittee
for the life of the facility.
Failure to abide by the conditions and limitations contained in this permit may subject the
Permittee to an enforcement action by the Division of Environmental Management in accordance
with North Carolina General Statute 143-215.6.
The issuance of this permit 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.
Construction of the modifications shall be scheduled so as not to interrupt service by the
existing facilities nor result in an overflow or bypass discharge of wastewater to the surface waters
of the State.
One (1) set of approved plans and specifications is being forwarded to you. If you have
any questions or need additional information, please contact Babette McKemie, telephone number
919/733-5083.
Sincerelx,
R. Paul Wilms
cc: New Hanover County Health Department
Wilmington Regional Office
Training and Certification Unit