NC0080381_Authorization to Construct_19960401

State of North Carolina
Department of Environment, LTIN?FA
Health and Natural Resources &1J
Division of Environmental Management
r � �
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary p H N F1
A. Preston Howard, Jr., P.E., Director
April 1, 1996
Mr. Tom L. Frederick, Director of Water Resources
City of Monroe
P.O. Box 69
Monroe, North Carolina 28111 - 0069
Subject: Permit No. NCO080381
Authorization to Construct
Additions to WTP
John Glenn WTP
Union County
Dear Mr. Frederick:
A letter of request for an Authorization to Construct from the City of Monroe was received
December 6, 1996 (with final supporting information received March 26, 1996) 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 addition of a 2.25 million gallon earthen residuals storage lagoon
with 60 mil HDPE liner, 2 submersible centrifugal decant pumps (200 gpm at 13 ft. head), and effluent
parshah flume manhole (for 50 gpm (min) to 700 gpm (max) flow). The lagoon will receive filter
backwash from the new sedimentation basin and the existing sedimentation basins. All additions and
improvements shall be as indicated in the approved plans and specifications including all the associated
valves, piping, and appurtenances with discharge of treated wastewater to Stewarts Creek in the Yadkin -
Pee Dee River Basin.
The COMPLIANCE BOUNDARY for the disposal system (the residuals lagoon) is specified by
regulations in 15A NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary is
for the disposal system constructed after December 31, 1983 is established at either (1) 250 feet from the
waste disposal area, or (2) 50 feet within the property boundary, whichever is closest to the waste disposal
area. An exceedance of Groundwater Quality Standards at or beyond the Compliance Boundary is subject
to immediate remediation action in addition to the penalty provisions applicable under General Statute 143-
215.6A(a)(1).
In accordance with 15A NCAC 2L, a REVIEW BOUNDARY is established around the disposal
systems midway between the Compliance Boundary and the perimeter of the waste disposal area. Any
exceedance of standards at the Review Boundary shall require remediation action on the part of the
permittee.
This Authorization to Construct is issued in accordance with Part III, Paragraph A of NPDES
Permit No. NCO080381 issued October 21, 1994, and shall be subject to revocation unless the wastewater
treatment facilities are constructed in accordance with the conditions and limitations specified in Permit No.
NC0080381.
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

Permit No. NCO080381
Authorization to Construct
John Glenn WTP
Page 2
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, telephone number (704) 663 - 1699, 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.
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 Susan A. Wilson, telephone number 919i733-
5083, ext. 555.
Sincerely,
A. Preston Howard, Jr., P.E.
cc: Mooresville Regional Office, Water Quality
Central Files
Union County Health Department
Steve Moran, FP&S