NC0069761_authorization to construct_19881219

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 December 19, 1988 Director
Mr. Larc E. Lindsey, President
Mills River Inc.
Route 1, Box 168
Horse Shoe, NC 28742
SUBJECT: Permit No. NCO069671
Authorization to Construct Modification
Mills River, Inc.
Mills River Village, Phase I
Wastewater Treatment Facility
Henderson County
Dear Mr. Lindsey:
A letter of request for an Authorization to Construct modification was received
November 14, 1988, 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 a 0.015 MGD wastewater treatment facility
which consists of a bar screen, a flow splitter box, a '41 GPM wetwell influent pump
station with 16 GPM duplex submersible pumps and high w•^.ter alarm, 50 linear feet of
3-inch force main, a 15,000 gallon wastewater treatment plant which consists of a
15,050 gallon aeration tank, a 2,680 gallon clarifier, a 1,400 gallon sludge holding
tank, dual 75 CFM blowers, a tablet chlorinator with a 315 gallon chlorine contact
tank, a 'Y' Notch weir for measuring flow, and all piping, valves, and appurtenances
to serve Mills River Village, Phase I in Henderson County.
This Authorization to Construct is issued in accordance with Part III paragraph
C of NPDES Permit No. NC0069671 issued November 3, 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. NCO069671.
The Permittee must employ a certified wastewater operator in accordance with
Part III paragraph C of the referenced permit.
The sludge generated from these treatment facilities must be disposed of in
accordance with G.S. 143-215. 1 and in a manner approvabJe by the North Carolina
Division of Environmental Management.
The Asheville Regional Office, telephone number 704/251-6208 shall be
notified at least twenty-four (24) 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.
„Jl until 5:00 p.m. on Monday through Friday, excluding Stare Holidays.
Pollution Prevention Pays
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

In the event that 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:
A set of approved plans and specifications for the subject project must be
retained by the applicant for the life of the project.
The Permittee shall provide for the pump station and force main the following
items:
a. Pump-on/pump-off elevations located so that 2-8 pumping cycles may be
achieved per hour in the pump station.
b. An air relief valve located at all high points along the force main.
c. A screened vent for the wet well.
d. Fillets located in the wet well at the intersection of the flooring
and sidewalls.
e. Three (3) feet of cover (minimum) over the force main or the use of
ferrous material where three (3) feet cannot be maintained.
f. Sufficient devices which will protect the pump station from vandals.
g. Flood protection if the pump station is located below the 100-year
flood elevation.
Upon completion of construction and prior to operation of this permitted
facility, a certification must be received from a profe��.sional 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.O. Box 27687, Raleigh, N.C. 27611-7687.
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. Randy
Jones, telephone number 919/733-5083, ext. 541.
Sincerely,
R. Paul Wilms /
cc Henderson County Health Department
Asheville Regional Supervisor
W. G. Lapsley & Associates