NC0020648_authorization to construct_19931101

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
November 1, 1993
Ed Burchins
City of Washington
P.O. Box 1988
Washington, NC 27889
1:3EHN PI
Subject Permit No. ACB020648
Authorization to Construct
WWTP Improvements
Beaufort County
Dear Mr. Burchins:
A letter of request for an Authorization to Construct was received August 4, 1993 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 improvements to increase the flow to 2.5 MGD
with discharge of treated wastewater into National Spinning Co. effluent line, with partial reuse by
National Spinning, and final discharge into the Pamlico River. The modifications and improvements
consist of conversion of the aerobic digestion basin to a supplemental aeration basin by adding course
bubble diffusers to provide redundancy for the oxidation ditch, the addition of a new waste activated
sludge pump station for the #2 anaerobic digestor to be used for mixing and lime stabilization, new deep
bed denitrification filter station with new filter feed pump station and methanol storage and pump station,
increase in volume of the chlorine contact basin and reaeration basin by raising weirs, new effluent pump
station with five pumps, three effluent discharge, one effluent reuse and one common backup, storage of
800,000 gallons of effluent to be stored in two existing clear wells at the Jordan Memorial WTP for the
reuse program and to include all the necessary piping and appurtenances needed for the completion of the
modifications listed above.
This Authorization to Construct is issued in accordance with Part III, Paragraph C of NPDES
Permit No. 20848 issued November 1, 1993, and shall be subject to revocation unless the wastewater
treatment facilities are constructed in accordance with the conditions and limitations specified in Permit No.
NC0020648.
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 Washington Regional Office, telephone number 919-946-6481 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.
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
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November 1, 1993
Page 2
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.
Upon classification of the facility by the Certification Commission, the Permittee shall employ a
certified wastewater treatment plant operator to be in responsible charge (ORC) of the wastewater treatment
facilities. The operator must hold a certificate of the type and grade at least equivalent to or greater than the
classification assigned to the wastewater treatment facilities by the Certification Commission. The
Permittee must also employ a certified back-up operator of the appropriate type and grade to comply with
the conditions of Title 15A, Chapter 8A, .0202. The ORC of the facility must visit each Class I facility at
least weekly and each Class II, III, and IV facility at least daily, excluding weekends and holidays, and
must properly manage and document daily operation and maintenance of the facility and must comply with
all other conditions of Title 15A, Chapter 8A, .0202. Once the facility is classified, the Permittee must
submit a letter to the Certification Commission which designates the operator in responsible charge within
thirty days after the wastewater treatment facilities are 50% complete.
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 deep bed denitrification filter system must comply with the Division's sand
specifications. The engineer's certification will be evidence that this certification has been met.
This authorization is based on the understanding that no discharge shall occur into Kennedy Creek.
All wastewater shall be routed to the National Spinning effluent pipe with discharge into the Pamlico River
or to the two storage tanks for reuse in the National Spinning processing. The plans and specifications
state that an emergency overflow exists with a discharge into Kennedy Creek. A letter was received from
Black and Veatch stating that there will not be an emergency overflow to Kennedy Creek. Any wastewater
effluent discharge into Kennedy will be in direct violation with this Authorization to Construct and subject
to enforcement actions as stzted below.
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.
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autnonzauon to construct
City of Washington
November 1, 1993
Page 3
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 Kepler, telephone number 919/733-
5083.
Sincerely,
cc: Beaufort County Health Department _
Washington Regional Office, Water Quality
Training and Certification Unit
Permits and Engineering
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