NC0024333_Authorization to construct_19930628

State of North Carolina
Department of Environment,,,,, �R
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr„ Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
June 28, 1993
Mr. Jerry Cox, City Manager
City of Monroe
P. O. Box 69
Monroe, North Carolina 28111
ArVA
17:;0HNR
SUBJECT: City of Monroe
Permit No. NC0024333
Authorization to Construct
Wastewater Treatment Facility
Improvements
Project No. CS370564-02
Dear Mr. Cox:
The final plans and specifications for the subject project have been
reviewed and found to be satisfactory.
Authorization is hereby granted for the construction of treatment
facility improvements to expand capacity of the existing Monroe plant from
7.0 MGD to 9.0 MGD to consist of a new 6.5 MGD influent pumping station to
operate in tandem with the existing influent pumps to provide a total peak
pining capacity of 22.5 MGD; a new 1.3 MG capacity aeration basin with fine
bubble diffusers to increase aeration time at design flow to 12.6 hrs.;
two (2) new tertiary filters and rehabilitation of four (4) existing
filters, providing a total of six (6) cells; dechlorination facilities;
conversion of two (2) existing intermediate clarifiers to sludge
holding/thickening tanks; replacement of the existing 24-inch effluent
outfall with a new 30-inch diameter gravity line; and all associated site
work, yard piping, instrumentation, and electrical work.
Do not proceed with construction until the Authorization -to -Award
package, EEO, and MBE documentation/certification have been reviewed, and
you are in receipt of our approval, if funding is desired for project
construction.
The Permittee shall employ an actively State certified wastewater
treatment plant operator to be in responsible charge of the wastewater
treatment facilities. Such operator must hold a valid State Certificate of
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
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Page 2
the grade at least equivalent to the classification assigned to the waste-
water treatment facilities by the Certification Commission. When a new
chief operator must be obtained to be in responsible charge of the new
facilities, it is required that this be done by the time the construction of
the facilities is 50% complete.
The Authorization -to -Construct is issued in accordance with Part III,
Paragraph C of NPDES Permit No. NC0024333, issued November 30, 1989 and
shall be subject to revocation unless the wastewater treatment facilities
are constructed in accordance with the approved plans, specifications, and
supporting documents; and are in compliance with the conditions and
limitations specified in Permit No. NC0024333.
The Permittee shall have an acceptable sludge analysis and a sludge
toxicity analysis which have been approved by the Division of Environmental
Management, Water Quality Section prior to the disposal of any sludge from
the new wastewater treatment plant. Copies of the analyses, supporting
documents, and approvals shall be submittPd to the Division of Environmental
Management's Mooresville Regional Office.
The disposing, selling or free distribution of wet, dried, composted
sludge or sludge -like materials fruit wastewater facilities without prior
review and approval by this Division is illegal.
During the construction of the proposed ac9riitions/modifications, the
permittee shall continue to properly maintain and operate the existing
wastewater treatment facilities at all times, including the influent lift
station, and in such a manner as necessary to comply with the effluent
limits specified in the NPDES Permit.
You are reminded that it is mandatory for the project to be constructed
in accordance with the North Carolina Sedimentation Pollution Control Act,
and, when applicable, the North Carolina Dam Safety Act. In addition, the
specifications must clearly state what the contractor's responsibilities
shall be in complying with these Acts.
One (1) set of final approved plans and specifications is to be
forwarded to you for your files. The copy of the approved plans and
specifications shall be maintained on file by the Owner for the life of the
project.
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 approved plans and specifications. Mail the Certifica-
tion to the Permits and Engineering Unit, P. 0. Box 29535, Raleigh, North
Carolina 27626-0535. (Engineer's Certification Form is attached.)

The Permittee shall employ an actively State certified wastewater
treatment plant operator to be in responsible charge of the wastewater
treatment facilities. Such operator must hold a valid State
Certificate of the grade at least equivalent to the classification
assigned to the wastewater treatment facilities by the Certification
Commission. When a new chief operator must be obtained to be in
responsible charge of the new facilities, it is required that this be
done by the time the construction of the facilities is 50% complete.
The Authorization -to -Construct is issued in accordance with Part
III, Paragraph C of NPDES Permit No. NC0024333, issued November 30,
1989 and shall be subject to revocation unless the wastewatFr treatment
facilities are constructed in accordance with the approved plans,
specifications, and supporting documents; and are in compliance with
the conditions and limitations specified in Permit No. NC0024333.
The Permitt e shall have an acceptable sludge analysis and a
sludge toxicity analysis which have been approved by the Division of
Environmental Management, Water Quality Section prior to the disposal
of any sludge from the new wastewater treatment plant. Copies of the
analyses, supporting documents, and approvals shall be submitted to the
Division of Environmental Management's Mooresville Regional Office.
The disposing, selling or free distribution of wet, dried,
composted sludge or sludge -like materials fieut wastewater facilities
without prior review and approval by this Division is illegal.
•
During the construction of the proposed additions/modifications,
the permnittee shall continue to properly maintain and operate the
existing wastewater treatment facilities at all times, and in such a
manner, as necessary to comply with the effluent limits specified in
the NPDES Permit.
You are reminded that it is mandatory for the project to be
constructed in accordance with the North C- rolina Sedimentation
Pollution Control Act, and, when applicable, the North C'A rolina Dam
Safety Act. In addition, the specifications must clearly state what
the contractor's responsibilities shall be in complying with these Acts.
One (1) set of final approved plans and specifications is to be
forwarded to you for your files. The copy of the approved plans and
specifications shall be maintained on file by the Owner for the life of
the project.

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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 approved plans and specifications.
Mail the Certification to the Permits and Engineering Unit, P. 0. Box
29535, Raleigh, North Carolina 27626-0535. (Engineer's Certification
Form is attached.)
If you have any questions or need additional information, please
contact Mr. Bill Hoffman, at [phone], extension 615.
Sincerely,
Preston Howard, Jr., P.E.
Attachment
RPT:vk
cc: Hazen and Sawyer
Mr. Don Safrit
Mooresville Regional Office
Mr. Tom Fahnestock
Mr. Joseph E. IMMartin, Jr.
Mr. Don Evans
Ms. Valerie Lancaster
Mr. Robert Teulings
Ms. Cindy Finan
DMU
SRF