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HomeMy WebLinkAboutWQ0002952_Final Permit_19901019State 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 George T. Everett, Ph.D.
William W. Cobey, Jr., Secretary Director
October 19, 1990
Mr. John C. McKnight,
Assistant Superintendent
Pitt County Board of Education
1717 West Fifth Street
Greenville, North Carolina 27834
Subject: Permit No. WQ0002952
Pitt County Board of Education
G.R. Whitfield Elementary School
Wastewater Treatment System
Pitt County
Dear Mr. McKnight:
In accordance with your application received January 12, 1990, we are forwarding
herewith Permit No. WQ0002952, dated October 19, 1990, to Pitt County Board of Education for
the construction and operation of the subject subsurface wastewater treatment and disposal system.
This permit shall be effective from the date of issuance until September 30, 1995, 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. A
review of the G. R. Whitfield system was made using computer models. The results show that the
groundwater monitoring conditions contained in this pertnit are necessary.
If any parts, requirements, or limitations contained in this permit are unacceptable to you,
you have the 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 150B of North Carolina General Statutes, and filed with the Office of Administrative
Hearings, P.O. Box 11666, Raleigh, NC 27604. 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 Ykza e contact Mr. John Seymour at 919/ 733-5083.
jSin erely,
6'll
--_.----Z--
cc: Pitt County Health Department
Washington Regional Office
Eilinwood Design Associates, Ltd.
Groundwater Section
Training & Certification Unit
Pollution Prevention Pays
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone 91.9-733-7015
An Equal Opportunity Affirmative Action Employer
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
Pitt County Board of Education
Pitt County
FOR THE
construction and operation of a 9,000 GPD low pressure pipe treatment and disposal system
consisting of a 6,000 gallon septic tank and a 3,000 gallon septic tanks in series, a 4,000 gallon
pump tank with dual submersible 88 -GPM pumps, approximately 3,300 linear feet of 3 -inch force
mains (dual 1,650 l.f.force mains), 2 Low pressure pipe subfields totaling 3,600 linear feet of
laterals, and associated piping, solenoids and appurtenances to serve G.R. Whitfield Elementary
School with no discharge of wastes to the surface waters, pursuant to the application received
January 12, 1990 and in conformity with the project plan, specifications, 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 from the date of issuance until September 30, 1995, and shall
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 27687, Raleigh, NC 27611-7687.
2. The Washington Regional Office, phone no. 919/ 946-6418, 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.
8. 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
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
e) 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 and dosing tank 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.
II. (OPERATIQN AND MAINTENANCE REQUIREMENTS
1. The facilities shall be properly maintained and operated at all times.
2
III
2. 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 grade at least equivalent to the classification assigned to the
wastewater treatment facilities by the Certification Commission. Within thirty days
after the wastewater treatment facilities are 50% complete, the Permittee must submit
a letter to the Certification Commission which designates the operator in responsible
charge.
3. The application rates to the disposal field shall not exceed 0.85 gallon/ day/ sq. ft.
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.
5. 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 LPP field(s) and the field(s) shall be kept
mowed. The clippings shall be removed to prevent the build up of thatch.
7. The low pressure lines shall be purged monthly using potable water or air pressure
and the pressure adjusted on the distribution lines to approved specifications.
1050jim•• I , 0101tim'•' 1 • 1
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. Adequate records showing all maintenance shall be maintained by the Permittee.
These records should include but are not limited to the following:
items
a) Individual dosing pump operation
b) Individual field rotation
c) High water alarms
d) Residual pressure on highest and
lowest lateral on each subfield
e) Residual pressure on all laterals
Insp�ction Frequency
Weekly
Weekly
Weekly
Monthly
Semi-annually
3. Three copies of all operation and maintenance records (as specified in condition III
2) and all effluent monitoring data 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 27687
Raleigh, NC 27611-7687
3
4. A record shall be maintained of all sludge 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 sludge, date the sludge was hauled, and volume
of sludge removed.
5. Noncompliance Notification:
The Permittee shall report by telephone to the Washington Regional Office,
telephone no. 919/ 946-6481, 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. Any 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.
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 directly to receiving waters without treatment 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 gone 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 reoccur.
1. Prior to beginning waste disposal operations, three (3) monitor wells, one (1)
upgradient and two (2) downgradient, must 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 location and construction details for these wells must be approved by the
Washington Regional Office, from which a well construction permit must be
obtained.
2. The monitor wells must be sampled initially after construction (and prior to waste
disposal operations) and thereafter every April, August, and December for the
following parameters:
NO3 (10.0) Ammonia Nitrogen
MS (500.0) TOC
pH (6.5-8.5 standard units) Total Coliforms (1/100ml)
Chloride (250.0) Water level
Volatile Organic Compounds - In December Only (by method 1 or 2 below)
4
Method 1: Method 6230D ( Capillary -Column), "Standard Methods For The
Examination of Water and Wastewater", 17th ed., 1989
Method 2: Method 502.2 "Methods For the Determination Of Organic
Compounds In Drinking Water", U.S. EPA - 600/4-88/039
The measurement of water level must be made prior to sampling for the remaining
parameters.
If TOC concentrations greater than 10 mg/1 are detected in any downgradient
monitoring well, additional sampling and analysis must be conducted to identify the
individual constituents comprising this TOC concentration. If the TOC concentration
as measured in the background monitor well exceeds 10 mg/l, this concentration will
be taken to represent the naturally occurring TOC concentration. Any exceedances
of this naturally occurring TOC concentration in the downgradient wells shall be
subject to the additional sampling and analysis as described above.
The measuring points (top of well casing) of all new monitoring wells shall be
surveyed relative to mean sea level (M.S.L.). The depth of water in each well shall
be measured from the surveyed point on the top of the casing. The water level
elevations shall then be determined relative to M.S.L..
If any volatile organic compounds are detected by method 6230D, or the equivalent
method 502.2, then EPA methods 604 and 611 must also be run to detect other
organic compounds which may be present. The results of all analyses specified in
the monitoring requirements, including 604 and 611 if required, must be submitted
simultaneously.
The numbers in parentheses represent the maximum allowable concentrations in
groundwater for the various analytical parameters, as specified in 15 NCAC 2L
[Groundwater Classifications and Standards]. Unless otherwise noted, the
concentrations are given in parts per million.
The results of the sampling and analysis shall be sent to the N.C. Division of
Environmental Management on Form GW -59 (Compliance Monitoring Report
Form) every May, September, and January.
3. The ComplianBoundarydelineated 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.
For facilities permitted on or after December 30, 1983, the Compliance Boundary is
established at the lesser of 250 feet from the edge of the low pressure pipe field, or
50 feet within the property boundary.
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.
19
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 m a x i m u m 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.
4. To maintain a minimum one (1) foot separation between the bottom of the LPP
trenches and the mean seasonal high water table, the depth of the LPP trench shall be
limited to a maximum depth of 18 inches below land surface.
5. Any additional groundwater quality monitoring as deemed necessary by the Division
of Environmental Management shall be provided.
V. INSPECTIONS
1. Adequate inspection, maintenance, and cleaning shall be provided by the Permittee to
insure proper operation of the subject facilities.
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 pemutting authority.
3. 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 samples of groundwater, surface water, or leachate.
VI. GENERAL CONDITIONS
1. 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.
0
3. This permit is not transferable. In the event there is desire for the facilities to change
ownership, or there is a nanne 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 on
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.
6. 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 143-215.6.
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, rules, regulations, or ordinances which may be imposed by other
government agencies (local, state, and federal)which have jurisdiction.
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 19th day of October, 1990
loom[ •' �) ►1:��ti�tIL3� ►lug. ►� -►• eWNllKK06X0h1
George T. Evere(t ,, Direc o `
Division of Envm amen agement
By Authority of the o ntal Management Commission
7
Permit No. WQ0002952
October 19, 1990
Engineer's Certification
I, , 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
project,
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
Date
1.1
Registration No.
.1 p
Iit
04
141
Ox