NC0083551_Authorization to Construct_19940822

;',tate 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
Bill Harvey, Director
Onslow County Utilities
PO Box 1415
222 Georgetown Road
Jacksonville, NC 28541-1451
August 22, 1994
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Subject: Permit Numbers NCO083551
Authorization to Construct
Sneads Ferry WTP
Wastewater Treatment Facilities
Onslow County
Dear Mr. Harvey:
A letter of request for an Authorization to Construct was received May 19, 1994 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 dual polypropylene lined waste lagoons with each
lagoon designed to provide 3 days of detention time at a total water plant output of 4.0 MGD, wastewater
pump station with dual submersible pumps capable of providing 220 gallons per minute, a waste discharge
main, and all necessary controls, valves, fittings and appurtenances at the subject water treatment plant
with discharge of treated wastewater into Stones Creek in the White Oak River Basin.
To achieve full compliance with the terms of this Authorization to Construct, the permittee shall
conform to the following conditions:
1. Any groundwater quality monitoring, as deemed necessary by the Division, shall be provided.
2. Prior to beginning waste disposal operations, three monitor wells, one upgradient and two
downgradient, shall be installed to monitor groundwater quality. The wells shall be constructed
such that the water level in the well is never above or below the screened (open) portion of the well
at any time during the year. The general location and name for each well is marked on Attachment
B. Each monitoring well shall be located at the review boundary, constructed in accordance with
this permit, and approved by the Wilmington Regional Office.
3. Monitor wells (MW-1, 2, 3), shall be sampled initially after construction (and prior to waste
disposal operations) and thereafter every April for the following parameters:
Chlorides Total Dissolved Solids
pH Iron
Water Levels
The measurement of water levels must be made prior to sampling for the remaining parameters.
The depth to water in each well shall be measured from the surveyed point on the top of the casing.
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 500/6 recycled/ 10%postconsumer paper-

Permit Number NCO083551
• : Authorization to Construct
Onslow County Utilities
August 22, 1994
Page 2
The measuring points (top of well casing) of all monitoring wells shall be surveyed to provide the
relative elevation of the measuring point for each monitoring well.
4. The results of the sampling and analysis shall be sent to the Groundwater Section, Permits and
Compliance Unit, P.O. Box 29535 Raleigh, N.C. 27626-0535 on Form GW-59 [Compliance
Monitoring Report Form] every May.
5. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall be
provided.
6. The COMPLIANCE BOUNDARY for the disposal system 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.
7. All wells that are constructed for purposes of groundwater monitoring shall be constructed in
accordance with 15A NCAC 2C .0108 (Standards of Construction for Wells Other than Water
Supply) and any other state and local laws and regulations pertaining to well construction.
8. The Wilmington Regional Office, telephone number 910-395-3900, shall be notified at least forty-
eight (48) hours prior to the construction of any monitoring well so that an inspection can be made
of the monitoring well location. Such notification to the regional groundwater 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.
9. Within sixty (60) days of completion of all monitoring wells, the permittee shall submit two
original copies of a scaled topographic map (scale no greater than 1":100') signed and sealed by a
professional engineer or a state licensed land surveyor that indicates all of the following
information:
a. the location and identity of each monitoring well,
b . the location of the waste disposal system,
c. the location of all property boundaries,
d. the relative elevation of the top of the well casing (which shall be known as the "measuring
point"), and
e. the depth of water below the measuring point at the time the measuring point is established.
The maps shall be sent to the Groundwater Section, N.C. Division of Environmental Management
P.O. Box 29535 Raleigh, N.C. 27626-0535.
10. The interior surfaces of the lagoon shall be completely lined with a 45-mil thick polypropylene
liner. Following installation and inspection of the lagoon liner, and prior to waste disposal
operations, certification of the liner's compliance with approved construction specifications and the

Permit Number NC0083551
Authorization to Construct
Onslow County Utilities
August 22, 1994
Page 3
liner's integrity must be provided to the Division of Environmental Management, Groundwater
Section, by the project engineer.
11. Upon completion of all well construction activities, a certification must be received from a
professional engineer certifying that the monitoring wells are located and constructed in accordance
with the Well Construction Standards (15A NCAC 2C) and this permit. This certification should
be submitted with copies of the Well Completion Form (GW-1) for each well. Mail this
certification and the associated GW-1 forms to the Permits and Compliance Unit, Groundwater
Section, P.O. Box 29535, Raleigh, NC, 27626-0535.
12. For the initial sampling of the well as specified elsewhere in the permit, the permittee shall submit a
copy of the GW-1 Form (Well Completion Form) with the Compliance Monitoring Form (GW-59)
for that well. Compliance Monitoring Forms that do not include copies of the GW-1 form will be
returned to the permittee without being processed. Failure to submit these forms as required by
this permit may result in the initiation of enforcement activities pursuant to NC General Statutes
143-215.6.
This Authorization to Construct is issued in accordance with Part III, Paragraph A of NPDES
Permit Number NC0083551 issued May 13, 1994, and shall be subject to revocation unless the
wastewater treatment facilities are constructed in accordance with the conditions and limitations specified in
NPDES Permit Number NC083551.
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.
With in six months of the date of this Authorization to Construct, a sludge management plan or application
to dispose of sludge shall be submitted to the Division.
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 Wilmington Regional Office, telephone number 910-395-3900, 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.
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 H, 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

Permit Number NC0083551
Authorization to Construct
Onslow County Utilities
August 22, 1994
Page 4
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.
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 Sean Goris, telephone number 919/733-5083.
Sincerely,
Preston o Jr., P.E.
OOM., cc: Onslow County Health Department
Wilmington Regional Office, Water Quality
Training and Certification Unit
Wilmington Regional Office, Groundwater
Jack Floyd, Groundwater Section, Permits Unit
L