NC0025453_authorization to construct_19920827

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 A. Preston Howard,Jr.,P.E.
William W. Cobey,Jr.,Secretary Acting Director
August 27, 1992
The Honorable Douglas A. McCormac,Mayor
Town of Clayton
Post Office Box 879
Clayton, North Carolina 27520
Subject: Permit No. NCO025453
Authorization to Construct
Town of Clayton
Wastewater Treatment Facility
Johnston County
Dear Mayor McCormac:
A letter of request for an Authorization to Construct was received June 24, 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 facilities for phosphorus removal and sludge
handling consisting of a new chemical building and bulk storage facility with slurry/makeup water feed
pump system (25 gpm) from the plant effluent, a 7,500 gallon bulk storage tank for Alum with pump and
500 gallon alum day mixing tank, a 6,000 gallon bulk storage tank for Magnesium Hydroxide with pump
and 500 gallon day mixing tank, two Polymer storage tanks and mixing tank, and metering feed pumps; a
new 180 GPM simplex sludge pump station with high water alarms and 6 foot by 6 foot by 19.25 foot
deep wet well; a new 10,357 gallon capacity aerobic digester (circular tank 42 feet by 10 feet deep) with
310 cfm blower, a network of course air diffusers, and floating 5 Hp mixer with three post mooring
system; a new remote polymer feed system (for nitrification facilities) with portable polymer tank and
metering pump; three new 20 foot by 101 foot sludge drying beds with under drains and catch basins; and
all associated piping, valves, pumps, controls, mixers, and appurtenances with discharge of treated
wastewater into Little Creek,classified Class C waters.
This Authorization to Construct is issued in accordance with Part III paragraph C of NPDES
Permit No. NCO025453 issued August 1, 1987, and shall be subject to revocation unless the wastewater
treatment facilities are constructed in accordance with the conditions and limitations specified in Permit No.
NC0025453.
Regional Offices
Asheville Fayetteville Mooresville Raleigh Washington Wilmington Winston-Salem
704/251-6208 919/486-1541 704/663-1699 919/571-4700 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

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 Raleigh Regional Office,phone no. 919/571-4700 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 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 (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 Title 15A, Chapter 8A, .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, and
must properly manage and document daily operation and maintenance of the facility and must comply with
all other conditions of Title 15A,Chapter 8A, .0202.
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 Mr. John Seymour telephone number 919/733-
5083.
Sincerely,
(10
/� 1
A. Prestoti.Howard, Jr., P.E.
cc: Johnston County Health Department
Raleigh Regional Office,Water Quality
Training and Certification Unit (no rating change)
Facilities Assessment Unit