HomeMy WebLinkAboutWQ0013348_Final Permit_19970716State of North Carolina
Department of Environment,
Health and Natural Resources •
Division of Water Quality
James i3. Hunt, Jr., Governor
Jonathan B. Howes, Secretary [D E H N FR
A. Preston Howard, Jr., P.E., Director
July 16, 1997
Mr. James Krauss, Superintendent
Bay River Metropolitan Sewer District
PO Box 758
Bayboro, NC 28515
SUBJECT: Bay River MSD
Permit No. WQ0013348
Pamlico County Regional
Wastewater Spray Irrigation
Facilities
Project No. E-SRG-T-95-0028
Pamlico County
Dear Mr. Krauss:
In accordance with your application received January 10, 1997, we are forwarding
herewith Permit No. WQ0013348 dated July 16, 1997, to the Bay River Metropolitan
Sewer District for the construction and operation of the subject wastewater treatment and
spray irrigation facilities.
This permit shall be effective from the date of issuance until June 30, 2002, and
shall be subject to the conditions and limitations as specified therein.
If any parts, requirements, or limitations contained in this permit are unacceptable
to you, you have the right to an adjudicatory hearing upon written request within thirty
(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 27447, Raleigh, N. C. 27611-7447.
Unless such demands are made, this permit shall be final and binding.
One (1) set of final approved plans and specifications is to be forwarded to you, one
(1) set retained for our files.
Construction Grants & Loans Section aFAX 919-715-6229
P.O. Box 29579, Raleigh, North Carolina 27626-0579N%)C An Equal Opportunity/Affirmaiive Action Employer
Voice 919-733-6900 50% recycles/10% post -consumer paper
A copy of the approved plans and specifications shall be maintained on file by the
Owner for the life of the project.
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 approved plans and specifications. Mail
the Certification to the Permits and Engineering Unit, P. O. Box 29535, Raleigh, North
Carolina 27626-0535. (Engineer's Certification Form is attached.)
If there are any questions concerning this matter, please contact Mr. Cecil G.
Madden, Jr., P. E. at (919) 715-6203.
Sincerely,
�. Prest4nd�, Jr., P.E.
Attachment
RT:pe
cc: McKim & Creed, Cary
Pamlico County Health Department
Washington Regional Office, Water Quality
Washington Regional Office, Groundwater
Don Safrit
Groundwater Section, David Goodrich
Facilities Assessment Unit
Robert Teulings
Don Evans
Training and Certification Unit
CIU
DMU
SRG
NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
SPRAY IRRIGATION 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
Bay River Metropolitan Sewer District
Pamlico County
construction and operation of a 0.5 MGD regional wastewater spray irrigation facility
consisting of a 22.5 MG capacity storage lagoon with a low -permeability compacted clay
bottom and soil dikes lined on the inside slopes with a polypropylene geomembrane liner;
chlorine disinfection facilities; a 100,000 gallon covered concrete flow equalization tank with
odor control system; irrigation pumping station with three (3) vertical turbine pumps, flow
metering equipment, and standby generator; approximately 23,500 linear feet of 8-inch and 12-
inch force mains for effluent distribution to ten (10) irrigation zones with a total wetted area of
137 acres; approximately 143,700 linear feet of 3-inch and 6-inch diameter aluminum irrigation
laterals installed above ground to 3,260 sprinkler heads on 3 - ft. risers; telemetric alarm system
for pump monitoring, and all associated appurtenances to serve Bay River Metropolitan Sewer
District and Pamlico County with no discharge of wastes to surface waters, pursuant to the
application received January 10, 1997, and in conformity with the project plans, 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 June 30, 2002, 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.
2. The Washington Regional Office, phone no. (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 normal office hours from 8:00 a.m. until 5:00 p.m. on
Monday through Friday, excluding State Holidays.
3. The spray irrigation facilities shall be effectively maintained and operated at all
times so that there is no discharge to the surface waters, nor any contamination of
ground waters which will render them unsatisfactory for normal use. In the event
that the facilities fail to perform satisfactorily, including the creation of nuisance
conditions or failure of the irrigation area to adequately absorb the wastewater, the
Permittee shall take immediate action to correct the problem, including such
actions as may be required by the Division of Water Quality.
4. The issuance of this permit shall not relieve the Permittee of the responsibility for
damages to ground water or surface water resulting from the operation of this
facility.
5. 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 Water Quality.
6. Diversion or bypassing of the untreated wastewater from the treatment facilities is
prohibited.
7. The following buffers shall be maintained:
a) 400 feet between wetted area and any residence under separate ownership,
b) 150 feet between wetted area and property lines,
c) 100 feet between wetted area and wells,
d) 100 feet between wetted area and drainage ways or surface water bodies,
e) 50 feet between wetted area and public right of ways,
f) 100 feet between wastewater treatment units and wells,
g) 50 feet between wastewater treatment units and property lines.
11. OPERATION AND MAINTENANCE REQUIREMENTS
1. 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 (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.
3. A suitable vegetative cover over the spray field shall be maintained. The annual
nutrient assimilation capacity of the cover crop shall not be exceeded.
4. Irrigation shall not be performed during inclement weather or when the ground is in
a condition that will cause runoff.
5. Adequate measures shall be taken to prevent wastewater runoff from the spray
field.
6. 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.
7. The application rate on Spray Fields 1-7 shall not exceed a cumulative loading of
68.3 inches over any twelve (12) month period at an instantaneous rate not to . -
exceed 0.5 inches per hour. The application rate on Spray Fields 8-10 shall not
exceed a cumulative loading of 16.8 inches over any twelve (12) month period at
an instantaneous rate not to exceed 0.2 inches per hour.
8. No type of wastewater other than that from the Pamlico County sewer system shall
be sprayed onto the irrigation area.
9. No traffic or equipment shall be allowed on the disposal area except while
installation occurs or while normal maintenance is being performed.
10. Public access to the land application sites shall be controlled during active site use.
Such controls must include the posting of signs showing the activities being
conducted at each site.
11. Freeboard in the effluent storage lagoon shall not be less than two feet at any time.
1. Any monitoring (including groundwater, surface water, soil or plant tissue
analyses) deemed necessary by the Division of Water Quality to insure surface and
ground water protection will be established and an acceptable sampling reporting
schedule shall be followed.
2. Adequate records shall be maintained by the Permittee tracking the amount of
wastewater disposed. These records shall include, but are not necessarily limited
to, the following information:
a) date of irrigation,
b) volume of wastewater irrigated,
c) field irrigated,
d) length of time field is irrigated,
e) continuous weekly, monthly, and year-to-date hydraulic
(inches/acre) loadings for each field,
f) weather conditions, and
g) maintenance of cover crops.
3. The effluent from the subject facilities shall be monitored by the Permittee at the
point prior to irrigation every month for the following parameters:
BODS TSS
Fecal Coliform NH3 as N
pH
4. In a manner satisfactory to the Washington Regional Office, air entering and
leaving the odor control system at the equalization tank at the spray irrigation site
shall be monitored weekly by the Permittee for hydrogen sulfide after
commencement of irrigation operations. If, after a six (6) month trial period, the
odor control system is deemed to be functioning satisfactorily, hydrogen sulfide
monitoring may be stopped with the concurrence of the Washington Regional
Office
5. Three (3) copies of all operation and disposal records (as specified in condition III
2) and the wastewater and odor control monitoring data as specified in conditions
III 3 and 1114, and any other data as may be required, shall be submitted monthly
within thirty (30) days of the end of each reporting period to the following address:
NC Division of Water Quality
Water Quality Section
Facility Assessment Unit
P. O. Sox 29535
Raleigh, NC 27626-0535
6. 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 sludge digester, 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.
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 of 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 fifteen (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. GROUNDWATER REQUIREMENTS
1. At the spray irrigation site, six (6) monitoring wells, designated as MW-1, MW-2,
MW-3, MW-4, MW-5, and MW-6, shall be installed to monitor groundwater
quality. The general location and name for each well is marked on Attachment A.
At the storage lagoon site, prior to beginning waste disposal operations, four(4)
new monitor wells, designated as MW-8, MW-10, MW-11 and MW-12, shall be
installed to monitor groundwater quality. The general location and name for each
well is marked on Attachment B. For monitoring purposes, the two monitor wells
which already exist at the storage lagoon site shall be designated as MW-7 and
MW-9, as marked on Attachment B. The wells at both sites shall be constructed
such that the water level in each well is never above or below the screened (open)
portion of the well at any time during the year. Each monitoring well shall be
constructed in accordance with this permit and approved by the Washington
Regional Office.
2. Monitor wells MW-1, MW-2, MW-3, MW4, MW-5, and MW-6 at the spray
irrigation site and monitor wells MW-7, MW-8, MW-9, MW-10, MW-11, and
MW-12 at the storage Iagoon site shall be sampled initially (after construction of
the new wells is complete, and prior to the operation of the system.) All twelve
(12) monitor wells shall be sampled every March, July, and November for the
following parameters:
NO3 TDS
Ammonia Nitrogen pH
TOC Chloride
Water Level Fecal Coliforms
Volatile Organic Compounds (in November only)
For VOCs:
Method 6230D (Capillary - Column), "Standard Methods For The Examination of
Water and Wastewater", 17th ed., 1989.
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.
3. 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. 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.
5. If any volatile organic compounds are detected by Method 6230D, then the
Washington Regional Office groundwater supervisor [telephone number (919) 946-
6481] must be contacted immediately for further instructions regarding any
additional follow-up analyses required, The results of all initial and follow-up
analyses must be submitted simultaneously.
6. One copy of the results of the sampling and analysis must be received by the
Groundwater Section, Permits and Compliance Unit, P.O. Box 29578, Raleigh, NC
27626-0578 and one copy shall be sent to the Washington Regional Office address,
1424 Carolina Avenue, Washington, NC 27889, on or before the last working day
of the month following the sampling month.
7. Any additional groundwater quality monitoring, as deemed necessary by the
Division, shall be provided.
8. The COMPLIANCE BOUNDARY for the disposal system is specified by
regulations in 15A NCAC 2L, Groundwater Classifications and Standards. The
Compliance Boundary for a 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 closet 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.
10. The Washington Regional Office, 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 locations. Such notification to the regional groundwater
supervisor shall be made during the normal office hours from 8:00 AM until 5:00
PM on Monday through Friday, excluding state holidays.
11. 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 all components of the waste disposal system
C. the location of all property boundaries
d. the latitude and longitude of the established horizontal control monument
e. the relative elevation of the top of the well casing (which shall be known as
the "measuring point"), and
f. the depth of water below the measuring point at the time the measuring point
is established.
This survey shall be conducted using approved practices outlined in North Carolina
General Statutes Chapter 89C and the North Carolina Administrative Code Title
21, Chapter 56. The surveyor shall establish a horizontal control monument on the
property of the waste disposal system and determine the latitude and longitude of
this horizontal control monument to a horizontal positional accuracy of +/- 10 feet.
All other features listed in a. through e. above shall be surveyed relative to this
horizontal control monument. The positional accuracy of features listed in a.
through e. above shall have a ratio of precision not to exceed an error of closure of
1 foot per 10,000 feet of perimeter of the survey. Any features located by the radial
method will be located from a minimum of two points. Horizontal control
monuments shall be installed in such a manner and made of such materials that the
monument will not be destroyed due to activities that may take place on the
property. The map shall also be surveyed using the North American Datum of
1983 coordinate system and shall indicate the datum on the map. All bearings or
azimuths shall be based on either the true or NAD 83 grid meridian. If a Global
Positioning System (GPS) is used to determine the latitude and longitude of the
horizontal control monument, a GPS receiver will be differentially corrected.
The maps and any supporting documentation shall be sent to the Groundwater
Section, NC Division of Water Quality, PO Box 29578, Raleigh, NC 29626-0578.
12. Within thirty (30) days of 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, PO Box 295678, Raleigh, NC 27626-
0578.
13. 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 143-125.6.
14. The monitor wells must have identification plates and locks securing the wells
against unauthorized access and use in -accordance with 15 A NCAC 2C.0108.
15. The bottom of the storage lagoon shall have a liner of natural material at least one
foot in thickness, compacted to 95% proctor standard dry density, with a hydraulic
conductivity of no greater than 1 X 10' cm/sec. Following installation and
inspection of the lagoon Iiner, and prior to waste disposal operation, verification of
the liner's compliance with hydraulic conductivity and thickness specifications
must be provided to the Division of Water Quality, Groundwater Section, by the
project engineer.
16. The interior surfaces of the storage lagoon dikes shall be completely lined with a
40-mil thick geomembrane liner. Following installation and inspection of the dike
liner, and prior to waste disposal operations, certification of the liner's compliance
with approved construction specifications and the liner's integrity must be provided
to the Division of Water Quality, Groundwater Section, by the project engineer.
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 (3) years from
the date of the inspection and shall be made available upon request to the Division
of Water Quality or other permitting authority.
3. Any duly authorized officer, employee, or representative of the Division of Water
Quality 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
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 a desire for the facilities to
change ownership, or there is a name change of the Pernittee, a formal permit
request must be submitted to the Division of Water Quality 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. Failure to abide by the conditions and limitations contained in the permit may
subject the Permittee to an enforcement action by the Division of Water Quality in
accordance with North Carolina General Statute 143-215.6.
5. 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.
6. A set of approved plans and specifications for the subject project must be retained
by the Permittee for the life of the project.
7. 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).
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 under such conditions and limitations as it may deem
appropriate.
Permit issued this the 16th day of July 1997.
/-NORTq C OLINA ENVIRONMENTAL MANAGEMENT COMMISSION
�C �
1 A� Preston How a , Jr., P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit No. WQ0013348
Date July 16, 1997
ENGINEER'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 project,
(Project) (Name or Location)
for the hereby state that, to the best of my
(Project Owner) abilities, due care
and diligence was used in the observation of the project construction such that the construction
was observed to be built within substantial compliance and intent of the approved plans and
specifications.
Signature
Date
Permit No.
Registration No.
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