NC0031836_authorization to construct_19871119

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State of North Carolina
Department of Natural Resources and Community Development
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor R. Paul Wilms
S. Thomas Rhodes, Secretary November 19, 1987 Director
Mr. Peter T. Connet, City Manager
City of Statesville
P. 0. Box 1111
Statesville, NC 28677
SUBJECT: Permit No. NC0031836
Authorization to Construct
City of Statesville
Fourth Creek Wastewater. Treatment Plant
Expansion to 6.0 MGD Capacity
Iredell County
Dear Mr. Connet:
A letter of request for an Authorization to Construct was received September 29,
1987, by the Division and final plans and specifications for the subject facilities
expansion have been reviewed and found to be satisfactory. Authorization is hereby
granted for the construction of additions to the City of Statesville's existing 4.0
MGD Fourth Creek Wastewater Treatment Plant to increase capacity to 6.0 MGD, said
additions consisting of a third 70 ft. diameter x 12 ft. deep clarifier, a second
chlorine contact and effluent reaeration basin, a new aerated sludge digestion basin
with three (3) 60 H.P. mechanical aerators, a new sludge pumping station with dual 25
H.P. rotary lobe sludge transfer pumps, a belt -type filter press and polymer
conditioning system for sludge dewatering, and associated piping, valves, fittings and
appurtenances.
This Authorization to Construct is issued in accordance with Part III paragraph C
of the NPDES Permit No. NC0031836 issued November 19, 1987, and shall be subject to
revocationunless the wastewater treatment facilities are constructed in accordance
with the conditions and limitations specified in Permit No. NC0031836.
The sludge wastes generated from these treatment facilities must be disposed of
in accordance with G.S. 143-215.1 and in a manner approvable by the North Carolina
Division of Environmental Management.
The Permittee must employ a certified wastewater operator in accordance with Part
III paragraph D of the referenced permit.
Pollution Prevention Pays
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]
An Eaual Onrortunity Affirmative Actin,, F.r..,1'--

The Mooreville Regional Office, telephone number 704/663-1699 shall be notified
at least twenty-four (24) hours in advance of start-up 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.
In event the facilities fail to perform satisfactorily in meeting its NPDES
permit effluent limits, the Permittee shall take such immediate corrective action as
may be required by this Division, including the construction of Additional wastewater
treatment and disposal facilities.
Four monitoring wells, one (1) upgradient and three (3) downgradient, shall be
installed to monitor groundwater quality. The location and construction details for
these wells must be by approval of the Division's Mooresville Regional Office, from
which a well construction permit must be obtained. The monitoring wells shall be
sampled initially after construction and thereafter every March, .luly, and November
for the following parameters:
NO3
Total Ammonia
Total Dissolved Solids
Water Levels
Total Coliforms
pH
Total Organic Carbon
Chloride
Total Organic Halides (in November only)
Total Suspended Solids
(Initial sampling only)
The measurements of water level must be made prior to sampling for the remaining
parameters. The analytical methods used for Total Organic Halides must be capable of
detecting the total of all halogenated organic compounds present at a concentration of
5.0 parts per billion (ppb) or greater. Any individual halogenated organic compound
present at or above the method detection limit (MDL) must be identified, quantified
and reported with the sampling results. The results of the sampling and analysis
shall be sent to the Division of Environmental Management on Form GW-59 (Compliance
Monitoring Report Form) every April, August and December. Any additional groundwater
quality monitoring deemed necessary by the Division shall be provided.
The aerobic digestor basin shall be constructed with a compacted Bentonite/clay
liner at least one foot thick at all locations and with a maximum permeability not to
exceed 1 x 10 —6 cm/sec. Following installation and inspection of the basin liner,
and prior to use, vertification of the liner's compliance with permeability and
thickness requirements shall be provided to the Division by the project Engineer.
Upon completion of construction and prior to
facility, a certification must be received from a
that the permitted facility has been installed in
plans and specifications.
operation of this permitted
professional engineer certifying
accordance with with the approved

One (1) set of approved plans and specifications is being Forwarded to you. If
you have any questions or need additional information, please contact. Pir.. Robert
Teulings, telephone number 919/733-5083, ext. 177.
Sincerely yours,
. Paul Wilms
cc: Iredell County Health Department
Winston-Salem Regional Supervisor
Dennis Ramsey
Groundwater Section
Engineer's Certification
1 , as a duly registered Professional Engineer in the
State of North Carolina, hereby certify that construction of these permitted
facilities has been completed in accordance with the approved plans and
specifications.
Signature Registration Number Date
Permit No. NC0031836