WQ0004685_Final Permit_19910628

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State of North Carolina
Department of Environment, Health and Natural Resources
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor
William W. Cobey, Jr., Secretary
Mr. Walter Powers, Maintenance Supervisor
Moore County Public Schools
Post Office Box 1180
Carthage, North Carolina 28327
Dear Mr. Powers:
George T. Everett, Ph.D
Director
June 28, 1991
Subject: Permit No. WQ0004685
Moore County Public Schools
Westmoore Elementary School
Subsurface Disposal System
Moore County
In accordance with your application received February 1, 1991, we are forwarding herewith Pen -nit
No. WQ0004685, dated June 28, 1991, to Moore County Public Schools for the construction and
operation of a 3,000 GPD pressure manifold subsurface wastewater disposal system.
This permit shall be effective from the date of issuance until May 31, 1996, and shall be subject to
-the conditions and limitations as specified therein. Please pay particular attention to the monitoring
requirements in this permit. Failure to establish an adequate system for collecting and maintaining the
required operational information will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable to you, you have
tate right to request an adjudicatory hearing upon written request within 30 days following receipt of this
permit. This request must be in the form of a written petition, conforming to Chapter I50B of North
Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447,
Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and binding.
One set of approved plans and specifications is being forwarded to you. If you need additional
information concerning this matter, please contact Mr. Dan olden at 919/ 733-5083.
V!
George T.
cc: Moore County Health Department
Fayetteville Regional Office
Groundwater Section
Training and Certification Unit
Graham Brothers, Incorporated
Facility Assessment Unit
Regional Offices
Asheville Fayetteville Mooresville Raleigh Washington Wilmington Winston-Salem
704/251-6208 919/486-1541 704/663-1699 919/733-2314 919/946-6481 919/395-3900 919/761-2351
Pollution Prevention Pays
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

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NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
SUBSURFACE DISPOSAL SYSTEM PERMIT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina
as amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Moore County Public Schools
Moore County
FOR THE
construction and operation of a 3,000 GPD subsurface wastewater disposal system consisting of an
existing 6,000 gallon septic tank, an existing 1,628 ft2 surface sand filter, a 4,500 aalion wastewater
collection tank with dual, alternating W HP pumps and high water alarms, two dosini tanks each with a
1.5 HP pump and high water alarm, and a 14,400 subsurface disposal area consisting of two pressure
manifolds, and four disposal fields, each with approximately 1,200 linear feet of three foot wide trench to
serve the Westmoore Elementary School with no discharge of wastes to the surface waters, pursuant to the
application received February 1, 1991 and in conformity with the project plan, specificiitions, and other
supporting data subsequently filed and approved by the Department of Environment, Health and Natural
Resources and considered a part of this permit.
This permit shall be effective frons the date of issuance until May 31, 1996, and shell be subject to
the following specified conditions and limitations:
I. PERFORMANCE STANDARDS
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 this permit, the approved plans and
specifications. Mail the Certification to the Permits and Engineering Unit, P.O. Box
29535, Raleigh, NC 27626-0535.
2. The Fayetteville Regional Office, phone no. [phone], shall be notified at least forty-
eight (48) hours in advance of backfilling 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.
3. 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 construction of additional or replacement
wastewater treatment or disposal facilities.

4. The issuance of this permit shall not relieve the Permittee of the responsibility for damages
to surface or groundwaters resulting from the operation of this facility.
5. This permit shall become voidable if the soils fail to adequately absorb the wastes and may
be rescinded unless the facilities are installed, maintained, and operated in a manner which
will protect the assigned water quality standards of the surface waters and ground waters.
6. Adequate measures shall be taken to divert stormwater from the disposal area and prevent
wastewater runoff from the subsurface disposal field.
7. The sludge generated from these treatment facilities must be disposed of in accordance with
General Statute 143-215.1 and in a manner approved by the North Carolina Division of
Environmental Management.
S. A usable reserve area shall be maintained for wastewater disposal. The reserve area shall
have the capability of accommodating the average daily flow of the facility being served
without exceeding the loading rates of the reserve area while meeting all required buffer
requirements.
9. Diversion or bypassing of the untreated wastewater from the treatment facilities is
prohibited.
10. The following buffers shall be maintained:
a) 100 feet between disposal area and any public or private water supply including
wells 4
b) 100 feet between disposal area and "SA and SB" classified surface waters
c) 50 feet between disposal area and any stream, lake, river or natural drainageway
d) 50 feet between disposal area and property lines
C) 10 feet between disposal area and surface water interceptor drains or diversions
(upslope)
f) 25 feet between disposal area and surface water interceptor drains or diversions
(downslope) and groundwater drainage systems.
11. A leakage test shall be performed on the septic tank, collection tank, and dosing tanks to
insure that any exfiltration occurs at a rate which does not exceed twenty (20) gallons per
twenty-four (24) hour per 1,000 gallons of tank capacity. The engineer's certification will
serve as proof of compliance with this condition.
11. OPERATION AND MAINTENANCE REQUIREMENTS
L The facilities shall be properly maintained and operated at all times.
2. Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge of the
wastewater treatment facilities. The operator must hold a certificate of the type and grade at
least equivalent to the classification assigned to the wastewater treatment facilities by the
Certification Commission. Once the facility is classified, the Permittee must submit a letter
to the Certification Commission which designates the operator in responsible charge "vithin
thirty days after the wastewater treatment facilities are 50% complete.
3. The application rates to the disposal field shall not exceed 0.25 gallons per day per ft2.
4. The facilities shall be effectively maintained and operated as a non -discharge system to
prevent the discharge of any wastewater resulting from the operation of this facility.
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No traffic or equipment shall be allowed on the disposal area except while installation
occurs or while normal maintenance is being performed.
6. A suitable cover shall be maintained on the field(s) and the field(s) shall be routinely
mowed. The clippings shall be periodically removed to prevent the build -tip of thatch.
Ill. MONITORING AND REPORTING REQUIREMENTS
1. Any monitoring deemed necessary by the Division of Environmental Management to insure
surface and ground water protection will be established and an acceptable sampling
reporting schedule shall be followed.
2. The pressure lines shall be maintained as necessary (including purging of the lines and
pressure testing) in order to ensure that they remain free of obstructing materials and that
the pressure head on the laterals remains within the design specifications. The highest and
lowest laterals on each subfield shall be checked (and adjusted as necessary) annually to
ensure that the pressure heads are within the approved specifications. If adjustments are
necessary to the highest and lowest laterals, the remaining laterals in that subfield shall also
be checked and adjusted to the approved specifications. Adequate records showing all
maintenance shall be maintained by the Permittee. These records should include but are not
limited to the following:
Items Inspection Frequency
a) Individual dosing pump operation Monthly
b) Individual field rotation Monthly
C) High water alarms Monthly
d) Residual pressure on manifolds Annually
3, Three copies of all operation and maintenance records (as specified in condition 111 2) shall
be submitted on or before January 31 of the following year to the following address:
NC Division of Environmental Management
Water Quality Section
Facility Assessment Unit
PO Box 29535
Raleigh, NC 27626-0535
4. A record shall be maintained of all residuals removed from this facility. This record shall
include the name of the hauler, permit authorizing the disposal or a letter from a
municipality agreeing to accept the residuals, date the residuals were hauled, and volume of
residuals removed.
5. Noncompliance Notification:
The Permittee shall report by telephone to the Fayetteville Regional Office, telephone no.
[phone], as soon as possible, but in no case more than 24 hours or on the next
working day following the occurrence or first knowledge of the occurrence of any of the
following:
a. Airy occurrence at the wastewater treatment facility which results in the treatment of
significant amounts of wastes which are abnormal in quantity or characteristic, such
as the dumping of the contents of a basin or tank; the known passage of a slug of
hazardous substance through the facility; or any other unusual circumstances.
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b. Any process unit failure, due to known or unknown reasons, that render the facility
incapable of adequate wastewater treatment such as mechanical or electrical failures
of pumps, aerators, compressors, etc.
C. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-
pass of all or any portion of the influent to such station or facility.
d. Any time that self-monitoring information indicates that the facility has Saone out of
compliance with its permit limitations.
Persons reporting such occurrences by telephone shall also file a written report in letter
form within 15 days following first knowledge of the occurrence. This report must outline
the actions taken or proposed to be taken to ensure that the problem does not recur.
IV. C'ROUNDWATER RE IREMENT
The Compliance Bou,ndary for the disposal system is specified by regulations in 15 NCAC
2L, Classifications and Water Quality Standards applicable to the groundwater of North
Carolina. An exceedance of Groundwater Quality Standards beyond the Compliance
Boundary is subject to penalty provisions applicable under General Statute 143-215.6(1)a.
The sale of property, by the Permittee, which is within or contiguous to the disposal
system site may alter location of the Compliance Boundary.
2. For facilities permitted on or after December 30, 1983, the Compliance Boundary is
established at the lesser of 250 feet from the subsurface disposal system. or 50 feet within
the property boundary.
3. If the title to any property which may affect the location of the Compliance Boundary is
changed, the permittee shall notify the Division Director within 14 days. The Director shall
then establish a modified Compliance Boundary which will be done as a modification to the
Permit.
4. The REVIEW BOUNDARY for the disposal system is specified by regulations in 15
NCAC 2L, Groundwater Classifications and Standards. A REVIEW BOUNDARY is
established around disposal systems midway between the Compliance Boundary and the
perimeter of the waste disposal area. When the concentration of any substance equals or
exceeds the maximum allowable concentration of that substance at the REVIEW
BOUNDARY, as determined by monitoring, the permittee shall either (i) demonstrate,
through predictive calculations or modeling, that natural site conditions, facility design and
operational controls will prevent a violation of standards at the Compliance Boundary; or,
(ii) submit a plan for the alteration of existing site conditions, facility design or operational
controls that will prevent a violation of standards at the Compliance Boundary, and
implement that plan upon its approval by the Director.
5. Any groundwater quality monitoring as deemed necessary by the Division of
Environmental Management shall be provided.
V. INSPECTION,S
Adequate inspection, maintenance, and cleaning shall be. provided b\ the Permittee to
insure proper operation of the subject facilities.
n

2. The Permittee or his designee shall inspect the wastewater treatment and disposal facilities
to prevent malfunctions and deterioration, operator errors and discharges which may cause
or lead to the release of wastes to the environment, a threat to human health, or a nuisance.
The Permittee shall keep an inspection log or summary including at least the date and time
of inspection, observations made, and any maintenance, repairs, or corrective actions
taken by the Permittee. This log of inspections shall be maintained by the Permittee for a
period of three years from the date of the inspection and shall be made available upon
request to the Division of Environmental Management or other permitting authority.
Any duly authorized officer, employee, or representative of the Division of Environmental
Management may, upon presentation of credentials, enter and inspect any property,
premises or place on or related. to the disposal site and facility at any reasonable time for the
purpose of determining compliance with this permit; may inspect or copy any records that
must be kept under the terms and conditions of this permit; or may obtain san-1ples of
groundwater, surface water, or leachate.
V 1. GENERAL CONDITIONS
This permit shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans, specifications and other supporting data.
2 . This permit is effective only with respect to the nature and volume of wastes described in
the application and other supporting data.
3. This permit is not transferable. In the event there is desire for the facilities to ell Iige
ownership, or there is a name change of the Permittee, a formal permit request must be
submitted to the Division of Environmental Management accompanied by an application
fee, documentation from the parties involved, and other supporting materials as may be
appropriate. The approval of this request will be considered oil its merits and may or may
not be approved.
4. Prior to any transfer of this land, a notice shall be given to the new owner that gives full
details of the materials applied or incorporated at this site.
5. A set of approved plans and specifications for the subject project must be. retained by the
applicant for the life of the project.
C. The annual administering and compliance fee must be paid by the Permittee within thirty
(30) days after being billed by the Division. Failure to pay the fee accordingly may cause
the Division to initiate action to revoke this permit as specified by 15 NCAC 2H .0205
(c)(4).
7. Failure to abide by the conditions and limitations contained in this permit may subject the
Permittee to an enforcement action by the Division of Environmental Management in
accordance with North Carolina General Statute 143-215.5.
8. The wastewater treatment facility shall connect to a publicly owned areawide sewage
collection system within 180 days of its availability. All discharge of wastewater to the
system shall cease at the time of the connection to the sewerage collection system.
9. The issuance of this permit does not preclude the Permittee from complying with any and
all statutes, riles, regulations, or ordinances which may be imposed by other government
agencics (local, state, and federal) which have jurisdiction.
5

*-V
10. The Permittee, at least six (6) months prior to the expiration of this permit, shall request its
extension. Upon receipt of the request, the Commission will review the adequacy of the
facilities described therein, and if warranted, will extend the permit for such period of time
and under such conditions and limitations as it may deem appropriate.
Permit issued this the 28th day of June, 1991
W, -.1110AP001
'merge T. Ev ett, .
Division of Env' on
By Authority of the
Permit Number WQ0004685
AL MANAGEMENT COMMISSION
agement
ital. Management Commission
31

Permit No. WQ0004685
Tune 28, 1991
En tiineer's Certification
1, , as a duly registered Professional Engineer in the State of North Carolina,
having been authorized to observe (periodically, weekly, full time) the construction of the
protect,
Project Name
Location
for the
Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation
of the construction such that the construction was observed to be built within substantial compliance and
intent of the approved plans and specifications.
Signature Registration No
Date
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RATING SCALE FOR CI_ASSIFICATIQ* OF FACILITIES
Name of Plant-'Are Ca. Af,/ kc C�;,, AR -1/s' L/='>?51iY10�7re f r�rgr�r a {Jr
Owner or Contact Person: t J's
Mailing Address. -
____'C9. d —
--------- ----- r�l�a_C- ?'-3- --
County: Aimee Telephone:-/9ZIj�7—;14 '4>
NPDES Permit No. NC00 Nondisc. Per. No.l
IssueDate:_ X/21 Expiration Date: _�01
Existing Facility New Facility
l
Rated By: %✓Pd
Dater%7-
Reviewed (Train. & Cert.) Reg. Office
Reviewed (Train. & Cert.) Central
Office
ORC
Grade
G%� s .�
ITEM POINTS
ITEM
POINTS
(1) Industrial Pretreatment Units and/or
(4) PRIMARYTREATMENT UNITS
Industrial Pretreatment Program
(a) Septic Tank (see definition no. 43) ..............
�--^
c
(see -definition No. 33) 4
(b) Imhoff Tank .................. . ...............
5
(2) 031,0 FLOW OF PLANT IN GPD
(c) Primary Clarifiers ...... . .....................
5
(not applicable to non -contaminated cooling
(d) Settling Ponds or Settling Tanks for Inorganic
waters, sludge handling facilities for water
Non-toxic Materials (sludge handling facilities
purification plants, totally closed cycle
for water purification plants, sand, gravel,
systems (def. No. 11), and facilities
stone, and other mining operations except
consisting only of Item (4) (d) or Items (4) (d)
recreational activities such as gem or gold
and. (11) (d))mining)
- - .................. -
0 20,000 ..........................
(5) SECONDARY TREATMENT UNITS
20,001 -- 50,000 .......................... 2
(a) Carbonaceous Stage
50,001 100,000 .......................... 3
(i)Aeration - High Purity Oxygen System .... ,
20
100,001 250,000 .......................... 4
Diffused Air System ...........
1 0
250,001 - 500,000 .......................... 5
Mechanical Air System (fixed,
500,001 --1,000,000 .......................... 8
floating or rotor) ...... ........
8
1,000,001 -- 2,000,000 ........................ 10
Separate Sludge Reaeration ....
- 3
2,000,001 (and up) - rale 1 point additional for each
(ii) Trickling Filler
200,000 gpd capacity up to a
High Rate ...................
7
maximum of 30
Standard Rale ...............
5
Packed Tower ...............
5
Design Flow (gpd) ��
(iii) Biological Aerated Filler or Aerated
Biological Filler ......................
(iv) Aerated Lagoons ..................... .
10
(v) Rotating Biological Contactors ..........
1 0
(vi) Sand Filters -
PRELIMINARY UNITS (see definition no- 32)
intermittent biological ... . .
(a) Bar Screens ................................ t
recirculating biological -
3
or
(vii) Stabilization Lagoons ...................
5
(b) Mechanical Screens, Static Screens or
(viii)Clarilier ..............................
5
Comminuting Devices ... , ................. 2
(ix) Single slzge system for combined
(c) Grit Removal ............................... 1
carbonaceous removal of SOD and
or
nitrogenous removal by nitrification
(d) Mechanical or Aerated Gfil Removal ........... 2
(see def. No. 12) (Points for this item
(e) Flow Measuring Device ....................... 1
have to be in addition to items (5) (a)
or
(i) through (5) (a) (viii) .............. ...
8
(f) Instrumented Flow Measurement .............. 2
(x) Nutrient additions to enhance SOD
(g) Preaeration ................ ......... 2
removal ...............................
5
(xi) Biological Culture (-Super Bugs-) addition
(h) influent Flow Equalization ................... 2
to enhance organic compound removal ...
5
(i) Grease or Oil Separators - Gravity .......... 2
Mechanical .......... 3
Dissolved Air f=lotation. 8
(j) Prechlorinalion .............................. 5

Aeration - High Purily Oxygen System ..
20
(i) Sludge Holding Tank - Aerated ................ 5
Dilfused Air System . -1
zed,
0
Non-aerated ... _ ..... _ _ . 2
Mechanical Air SystemcTf
(j) Sludge Incinerator - (not including activated .
lloaling, or rotor) ...... ......
8
carbon regeneration) . .... 10
Separate Sludge Reaeration .....
3
(k) Vacuum Filler, Centrifuge or Filter Press or other
(ii) Trickling Filler -
similar dewatering devices . . .............. . ... 1 o
High Rate ..... . . .......
7
Standard Rate . . . ....... . ..
5
(8) SLUDGE DISPOSAL (including incinerated ash)
Packed Tower . _ ..... _ ....
5
(a) Lagoons ........................................
i i i) Biological Aerated Filter or Aerated
(b) Land Application (surface and subsurface)
Biological Filter .......... . ..... . ....... .
10
(see definition 22a)
(iv) Rotating Biological Conlactors ... _ ........
10
-where the facility holds the land app. permit ... 10
(v) Sand Filter-
-by contracting to a land application operator who
intermittent biological ........
2
holds the land application permit ....... . . ....... 2
recirculating biological ... . . ...
3
-land application of sludge by a contractor who does
tivi} Clarifier . . ...... . . . ... . ... _ _ _ ...........
5
not hold the permit for the wastewater treatment
facility where the sludge is generated ......... 10
ARY OR ADVANCED TREATMENT UNIT
(c) Landfilled (burial) ................. . ........... 5
0.ctivated Carbons Beds -
(9) DISINFECTION
without carbon regeneration .... . . ............
5
(a) Chlorination ............. ......._ . , ... 5
with carbon regeneration ............ . .......
Is
(b) Dechlorination ........................ 5
'owdered or Granular Activated Carbon Feed -
(c) Ozone ............. . ................ 5
without carbon regeneration .................
5
(d) Radiation ..........................
with carbon regeneration - - - - -- - - - - - - - - - - - - -
15
(10) CHEMICAL ADDITION SYSTEM (S) (See definition No. 9)
Air Stripping ........................ . . ...
5
(not applicable to chemical additions rated as item
Denitrification Process (separate process) ... .
10
(3) (j}, (5) (a) (xi), (6) (a), (6) (b), (7) (b), (7) (e),
Electrodialysis ............... . . .. . ..........
5
(9) (a), (9) (b), or (9) (c) 5, points each: List:
Foam Separation ..... . ..................... . .
5
. . . . . 5
Ion Exchange ................................
5
5
Land Application of Treated Effluent
. . . . . 5
(see delini0on no. 22b) (not applicable for
. . . . . 5
sand, gravel, stone and other similar mining
(11) MISCELLANEOUS UNiTS
operations)
(a) Bolding Ponds, Holding Tanks or Settling Ponds
j) on agriculturally managed sites (See def.
for Organic or Toxic Materials including wastes
No. 4) ............... . ..... . . . ...........
10
from mining operations containing nitrogen and/or
(ii) by high rate infiltration on non -agriculturally
managed sites (includes rotary distributors
phosphorous compounds in amounts significantly
greater than is common for domestic wastewater ....
and similar fixed nozzle systems) ...........
4
(b) Effluent Flow Equalization (not applicable to storage
(iii) by subsurface disposal (includes low pressure
basins which are inherent in land application systems). 2
pipe systems and gravity systems except at
(c) Stage Discharge (not applicable to storage basins
plants consisting of septic tank and nitrifica-
inherent in land application systems ....................................... 5
lionlines only) ............ . . . ............ . .
(d) Pumps ............................................................................ ,(:::;]
Microscreens . ........... . ........... . .........
5
(e) Stand -By Power Supply ...... ............. ............................................... 3
'hosphorus Removal by Biological Processes
(f) Thermal Pollution Control Device ............................................. 3
See def. No. 26) ...................... . ..... .
20
Polishing Ponds - without aeration .......
2
with aeration ..........
5
'ost Aeration - cascade ............ . .
diffused or mechanical ...
0
5
TOTAL POINTS
Reverse Osmosis ...............................
5
Sand or Mixed -Media Filters - low rate . _ . _ ... _ ...
2
high rate . _ ........
5
CLASSIFICATION
Treatment processes for removal of metal or
cyanide ................ • ..... _ .............
15
Class I ........................................ ................. 5 - 25 Points
Treatment processes for removal of toxic
Class Il ........................................................ 26- 50 Points
-nalerials other than metal or cyanide . _ ...... .
15
Class III ....................................................... 51- 65 Points
Class IV ........................................................ 66- Up Points
GE TREATMENT
Facilities having a rating of one through four points, inclusive,
;lodgeDigestion Tank - Heated . . . . .......... .
10
de not require a certified operator. Classification of all other
Aerobic ........ . ......
5
facilities requires a comparable grade operator in responsible
Unhealed ...... . . .....
3
charge.
,fudge Stabilization (chemical or thermal) _ _ . . . . .
5
Mudge Drying Beds - Gravity . . ...............
2
Facilities having an aclivated sludge process will be assigned
Vacuum Assisted .......
5
a minimum classilication el Class fl.
;fudge Eful6alion .................... . . ......
5
Mudge Conditioner (chemical or thermal) . _ . .. . . .
5
Facililies having treatment processes for the removal of metal
.fudge Thickener (gravity) ...... . . ..... . ........
5
or cyanide will be assigned a minimum classification of Class II.
iissolved Air Flotation Unit
,of applicable to a unit rales as (3) (i) ... .. ....
8
Facilities having treatment processes for the biological removal
fudge Gas Utilization (including gas storage)
2
Oft phosphorus will be assigned a minimum classification of Class`