NC0034754_authorization to construct_19910214

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 George T. Everett, Ph.D.
William W. Cobey, Jr., Secretary
Mr. David Sherrill
Comm/Scope, Incorporated
Post Office Box 199
Catawba, North Carolina 28609
Dear Mr. Sherrill:
February 14, 1991
Subject: Permit No. NC0034754
Authorization to Construct
Comm/Scope, Incorporated
Wastewater Treatment Facility
Catawba County
Director
A letter of request for an Authorization to Construct was received November 27, 1990 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 continued operation of a 10,000 gpd
wastewater treatment facility and the construction of an additional 10,000 gallon treatment facility
consisting of approximately 1,650 linear feet of 6 inch gravity sewer, a 1,000 gallon flow
equalization basin, three additional aeration tanks with a total capacity of 11,753 gallons, dual 191
cfm (7.5 hp) blowers, a 3,000 gallon clarifier, an aerated sludge digester, a tertiary filter unit
consisting of dual 7 square foot filters with a 2,300 gallon dosing tank and dual 1,195 gallon
backwash tanks, and all the associated piping, valves, and appurtenances with discharge of treated
wastewater into Terrapin Creek classified "C" waters.
This Authorization to Construct is issued in accordance with Part III paragraph B of
NPDES Permit No. NC0034754 issued January 3, 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. NC0034754.
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 Mooresville Regional Office, phone no. [phone] 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.
Pollution Prevention Pays
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

Mr. Sherrill n
February 14, 1991
PAge Two
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 27687, Raleigh, NC 27611.
Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified waster 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.
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.
The sand media of the tertiary filters must comply with the Division's sand specifications.
The engineer's certification will be evidence that this certification has been met.
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 143-215.6.
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. Mark Hawes, telephone number
919/733-5083.
cc: Catawba County Health Departme
Mooresville Regional Office
Training and Certification Unit