NC0024970_Authorization to Construct_19920228

State of North Carolina
Department of Environment, Health and Natural Resource,
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor George T. Everett, Ph.D
William W. Cobey, Jr., Secretary Director
February 28, 1992
Mr. Joe C. Stowe, Jr., Director
Charlotte -Mecklenburg Utility Department
5100 Brookshire Boulevard
Charlotte, North Carolina 28216
Subject: Permit No. NC0024970
Authorization to Construct
McAlpine Creek
Equalization Facilities
Wastewater Treatment Facility
Mecklenburg County
Dear Mr. Stowe:
A letter of request for an Authorization to Construct was received January 6, 1992 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 80 MGD equalization pump station, grit removal
and dewatering system, aeration blower system and the conversion of an existing 45 MG sludge holding
basin into a 45 MG equalization basin. This basin consists of three (3) separate cells (5 MG, 20 MG and
20 MG) to help eliminate wet weather and diurnal flows. Authorization is also granted for the construction
of approximately 400 linear feet of 48-inch transfer piping from the aeration basin to the secondary
clarifiers, approximately 1,360 linear feet of 60-inch piping, approximately 300 linear feet of 72-inch
suction line from the pump station and all necessary pumps, valves and appurtenances with discharge of
treated wastewater into McAlpine Creek which is designated as "C" waters in the Catawba River Basin.
This Authorization to Construct is issued in accordance with Part III paragraph C of NPDES
Permit No. NC0024970 issued September 16, 1991, and shall be subject to revocation unless the
wastewater treatment facilities are constructed in accordance with the conditions and limitations specified in
Permit No. NC0024970.
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.
Regional Offices
Asheville Fayetteville Mooresville Raleigh Washington Wilmington Winston-Salem
704/251-6208 919/486-1541 704/663-1699 919/733-2314 919/946-6481 919/395-3900 919/896-7007
Pollution Prevention Pays
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

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 Mooresville 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
accorda1i,ce v'ith the NPDES Permit, this Authorization to Construct and the approved plans and
specifications. Mail the Certification to the Permits and Engineering Unit, P.O. Box 29535, Raleigh, NC
27626-0535.
Upon classification of the facility by the Certification Commission, 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 type and grade at least equivalent to the classification
assigned to the wastewater treatment facilities by the Certification Commission.
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 requirements contained in this Authorization to Construct may subject the
Permittee to an enforcement action by the Division of Environmental Management 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 Ms. Angela Y. Griffin, telephone number
919/733-5083.
cc: Mecklenburg County Health Department
Mooresville Regional Office, Water Quality
Mooresville Regional Office, Groundwater Section
Training and Certification Unit
Groundwater, Jack Floyd
Camp Dresser & McKee