WQ0014046_Final Permit_20020614

— r vz,o .n . , aecretary
North Carolina Department of Environment and Natural Resources
I l V j Alan W. Klimek, P.E. Director
Division of Water quality
June 14, 2002
The Honorable Janet C. Parrott, Mayor
Town of Stovall
Post Office Box 100
Stovall, North Carolina 27582-0100 tti r`hnnr,E PEP"�'�
SUBJECT-. Town of Stovall
Permit No- WQ0014046
Wastewater Treatment and Spray Irrigation
Project No. E-SRG-T-00-0103
Granville County
Dear Mayor Parrott:
In accordance with your application received September 21, 2001, we are forwarding
herewith Permit No. WQ0014046, dated Junel4, 2002, to the Town of Stovall, North Carolina, for
the modification and continued operation of the subject wastewater treatment and spray irrigation
disposal system.
This permit shall be effective from the date of issuance until May 31, 2007, shall void Permit
No. WQ0014046 issued October 3, 1997, 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 the right to 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, 6714 Mail
Service Center, Raleigh, North Carolina 27699-6714. Unless such demands are made, this permit
shall be final and binding.
Upon completion of construction and prior to operation of this permitted facility, a
certif cation 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
Non -Discharge Branch, 1617 Mail Service Center, Raleigh, North Carolina 27699-1617. (Engineer's
Certification Form is attached.)
4v ;1W
�
til: DENR
Construction Grants and Loans Section 1633 Mail Service Center Raleigh, NC 27699-1633 [phone] Customer Service
E -Mail Address www.nccgl.net FAX [phone] 623-7748

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One (1) set of final approved plans and specifications is to be forwarded to you, one (1) set is
being forwarded to your Engineer (A/E), one (1) set retained for the Raleigh Regional Office, one (1)
set retained for the Construction Inspection Unit, and one (1) set retained for the Design
Management Unit.
A copy of the approved plans and specifications shall be maintained on file by the owner- for
the life of the project.
If there are any questions concerning this matter, please contact
Mr. Cecil G. Madden, Jr., P. E. at [phone].
Sincerely,
'Alan W. Klimek,
Attachment to All
CGM:dr
cc: Davis -Martin -Powell & Associates, Inc.
Granville County Health Department
OSHA Training Officer, Les Kafel
Raleigh Regional Office, Water Quality Section
Raleigh Regional Office, Groundwater Section
Dennis Ramsey, P.E.
Non -Discharge Permit Unit
Groundwater Section, Permits & Compliance Unit
Dan Blaisdell, P.E.
Cecil G. Madden, Jr., P.E.
Ken Polilig, P.E.
Ishwar Devkota, P.E.
Don Evans
NDPU, Michelle Barnett
CIU
SRG

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT 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
Town of Stovall
Granville County
FOR THE
continued operation and modification of a 69,000 GPD (existing 62,000 GPD and expansion 7,000
GPD) wastewater treatment and disposal facility consisting of an operations/lab building, with a
septic tank and S.T.E.P. system, an influent flow meter, a 2,530,000 -gallon facultative lagoon (36.7
days of treatment), a 5,370,000 -gallon storage lagoon (approximately 76.8 days of storage), an
effluent structure with a 2.4 GPH sodium hypochlorite feed pump, a 340 GPM irrigation pump
station with dual primps, high-water alarms, approximately 28.75 acres of existing spray irrigation
fields (divided into seven fields), and 3.96 acres of new spray fields (divided into two fields) to serve
the town of Stovall, including Stovall Elementary School, with no discharge of wastes to the surface
waters, pursuant to the application received September 21, 2002, and in conformity with the project
plan, specifications, and other supporting data subsequently filed and approved by the Department of
Environment and Natural Resources, and considered a part of this permit.
This pennit shall be effective from the date of issuance until May 31, 2007, shall void
Permit No. WQ0014046, issued October 3, 1997, and shall be subject to the following specified
conditions and limitations:
I. PERFORMANCE STANDARDS
1. Upon completion of construction and prior to operation of this pennitted facility, a
certification (see attached Certification Form) must be received from a professional

engineer certifying that the permitted facility has been installed in accordance with
this permit, and the approved plans and specifications. Mail the Certification to the
Non -Discharge Branch, 1617 Mail Service Center, Raleigh, North Carolina
27699-1617.
2. The DWQ Raleigh Regional Office, telephone No. [phone], 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.
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 perforin satisfactorily, including the creation of nuisance
conditions or failure of the irrigation area to adequately assimilate the wastewater,
the Permittee shall take immediate corrective actions, including those actions that
may be required by the Division of Water Quality (Division), such as the
construction of additional or replacement treatment and disposal facilities.
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 residuals 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 untreated wastewater from the treatment facilities is
prohibited.
7. The following buffers shall be maintained:
a. 400 feet between wetted area and any residence or places of public assembly
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,
C. 50 feet between wetted area and public rights-of-way,
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f. 100 feet between wastewater treatment units and wells, and
g. 50 feet between wastewater treatment units and property lines.
II. OPERATION AND MAINTENANCE REQUIREMENTS
The facilities shall be properly maintained and operated at all times.
2. Upon classification of the facility by the Water Pollution Control System Operators
Certification Commission (WPCSOCC), 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 WPCSOCC. The Permittee must also employ
a certified back-up operator of the appropriate type and grade to comply with the
conditions of 15A NCAC 8G .0202. The ORC of the facility must visit each Class I
facility at least weekly, each Class 11, 111, and IV facility at least daily, excluding
weekends and holidays, must properly manage and document daily operation and
maintenance of the facility, and must comply with all other conditions of
15A NCAC 8G.0202. Once the facility is classified, the Permittee must submit a
letter to the WPCSOCC, which designates the operator in responsible charge within
30 days after the wastewater treatment facilities are 50% complete.
3. A 2 -foot minimum freeboard shall be maintained below the top of the lagoon dikes.
4. A suitable year-round vegetative cover over the spray irrigation fields shall be
maintained.
5. An agronomic plan shall be developed, which maximizes the assimilative capacity
of the nutrients in the wastewater through crop growth, crop harvesting, etc_
G. Irrigation shall not be performed during inclement weather or when the ground is in
a condition that will cause runoff.
7. Adequate measures shall be taken to prevent wastewater ninoff from the spray field.
The annual application rate shall not exceed a cumulative loading of 28.3 inches
over any 12 -month period at an instantaneous irrigation loading rate not to exceed
0.25 inchihour.
9. The facilities shall be effectively maintained and operated as a non -discharge system
to prevent the discharge of any wastewater resulting from the operation ofthis
facility.
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10- The flow measurement device shall be calibrated annually by a representative of a
Finn, which is routinely engaged in the calibration of flow measurement devices.
Records of this calibration, including all information pertinent to the calibration,
shall be available during any inspection by Division staff.
11. No type of wastewater other than that from the town of Stovall's sewer system
including Stovall Elementary School shall be sprayed onto the irrigation area.
12. No traffic or equipment shall be allowed on the disposal area except while
installation occurs or while normal maintenance is being performed.
13. 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.
III. MONITORING AND REPORTING REQUIREMENTS
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.
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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.
Parameter
Sampling Point
Sampling Frequency
Type of Sample
Flow
Influent
Continuous
Recording
BODS (5 day, 20 C)
Effluent
2/Month
Composite
NH3 as N
Effluent
2/1\4onth
Composite
TSS
Effluent
2/Month
Composite
Fecal Coliform
Effluent
2/Month
Grab
NO3 as N
Effluent
Monthly
Composite
TKN
Effluent
Monthly
Composite
TDS
Effluent
Monthly
Grab
TOC
Effluent
Monthly
Grab
Chloride
Effluent
Monthly
Grab
Settleable Matter
Effluent
*Daily
Grab
Residual Chlorine
Effluent
*Daily
Grab
FH
Effluent
*Daily
Grab
*Daily is interpreted to mean, everyday that wastewater is land -applied via spray irrigation.
If groundwater sampling indicates or predicts problems with compliance with the
Groundwater Standards, this permit may be modified to include additional and/or more
restrictive limitations. Effluent pH shall not be less than 6.0 standard units nor greater than
9.0 standard units.
4. Three copies of all operation and disposal records (as specified in condition 1112) on
Form NDAR-1 shall be submitted on or before the last day of the following month.
Three copies of all effluent monitoring data (as specified in condition 1113) on Form
NDMR-1 shall be submitted on or before the last day of the following month. All
information shall be submitted to the following address-
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ddress:
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North Carolina Division of Water Quality
Water Quality Section
Non -Discharge Compliance/Enforcement Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
5. A representative annual soils analysis (Standard Soil Fertility Analysis) shall be
conducted on each spray field and the results maintained on file by the Permittee for
a minimum of five years. The Standard Soil Fertility Analysis shall include, but is
not necessarily limited to, the following parameters:
Acidity Manganese Potassium
Calcium Percent Humic Matter Sodium
Copper pH Zinc
Magnesium Exchangeable Sodium Percentage Phosphorus
Cation Exchange Capacity Base Saturation (by calculation)
6. A record shall be maintained of all residuals removed from this facility. The record
shall include the name of the hauler, the permit authorizing the disposal, a letter
from a municipality agreeing to accept the residuals, the date the residuals were
hauled, and the volume of residuals removed.
7. A maintenance log shall be maintained at this facility including, but not limited to,
the following items:
a. Everyday that wastewater is land -applied via spray irrigation, the following
results should be recorded:
PH,
Residual chlorine,
Settleable matter,
Volume of wastewater irrigation per field
as recorded by the effluent flowmeter;
b. Visual observations of the plant and plant site;
C. Record of preventative maintenance; and
d. Date of calibration of flow measuring device.
8. NONCOMPLIANCE NOTIFICATION:
The Permittee shall report by telephone to the Raleigh Regional Office, telephone
number [phone], as soots as possible, but in no case more than 24 hours, or
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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 known passage of a slug of hazardous substance
through the facility, or any other unusual.circurnstances.
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
bypass 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 recur.
IV. GROUNDWATER REQUIREMENTS
Sampling Criteria:
Existing monitor well(s) MW -1, MW -2, MW -3, and MW -4 as shown on the plans shall
be sampled initially atter construction and prior to waste disposal operations, and.
thereafter, every March, July, and November for the parameters listed below:
Water Level* pH
Chloride Fecal Coliform
Total Ammonia (as N) Nitrate (NO3-N)
Total Dissolved Solids (TDS) Total Organic Carbon
Volatile Organic Carbon (VOC) analysis - Only in November
*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
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on the top of the casing. The measuring points (top of well casing) of all monitoring wells
shall be surveyed relative to a common datum.
For Total Organic Carbon (TOC), if concentrations greater than 10 mg/l are detected in
any down -gradient 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
exceedance of this naturally occurring TOC concentration in the down -gradient wells
shall be subject to the additional sampling and analysis as described above.
For Volatile Organic Compounds (VOCs) sampled in November, use only one of the
following methods:
a. Standard Method 6230D, Practical Quantitation Limit (PQL) at 0.5 ug/L or less
b. Standard Method 6210, PQL at 0.5 ug/L or less
C. EPA Method 8021, Low Concentration, PQL at 0.5 ug/L or less
d. EPA Method 8260, Low Concentration, PQL at 0.5 ug/L or less
e. Another method with prior approval by the Groundwater Section Chief.
Any of the referenced methods used for VOCs must, at a minimum, include all the
constituents listed in Table VIII of Standard Method 6230D. Any method used must
provide a PQL of 0.5 ug/L or less, which must be supported by laboratory proficiency
studies as required by the DWQ Laboratory Certification Unit. Any constituents detected
above the Method Detection Limit (MDL) but below the PQL of 0.5 ug/L must be
qualified (estimated) and reported.
Any laboratory selected to analyze parameters must be Division of Water Quality (DWQ)
certified for those parameters required.
Reporting/Documentation:
2. All reports and documentation (GW -59) shall be mailed to the following address:
Groundwater Section
Permits and Compliance Unit
1636 Mail Service Center
Raieigh, NC 27699-1636
GW -59 is the Well Compliance Monitoring Form. Updated blank forms (GW -59) may
be downloaded from the Groundwater Section's website at bttp://gw.ehnr.state.nc.us/or
requested from the address mentioned above.
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3. The results of the sampling and analysis must be received on Form GW -59 (Groundwater
Quality Monitoring: Compliance Report Form) by the Groundwater Section (address
listed in the "Reporting/Documentation" section of the Groundwater Requirements), on
or before the last working day of the month following the sampling month. The data of all
groundwater sampling analyses, required by the permit conditions, must be reported using
the most recent GW -59 form, along with attached copies of the laboratory analyses.
4. Within 60 days of completion of all monitoring wells, the Permittee shall submit two
original copies of a scaled site map (scale no greater than 1 "=100'); however, special
provisions may be granted upon prior approval for large properties. The map(s) must
include the following information:
a. The location and identity of each monitoring well,
b. The location of major components of the waste disposal system,
C. The location of property boundaries within 500 feet of the disposal area(s),
d. The latitude and longitude of the established horizontal control monument,
C. The elevation of the top of the well casing (which shall be known as the
"measuring point") relative to a common datum,
f. The depth of water below the measuring point at the time the measuring point
is established,
g. The location of Review and Compliance boundaries,
h. The date the map is prepared and/or revised.
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.
Maps and any supporting documentation shall be sent to the Groundwater Section as
addressed in the "Rep orting/Documentation" above.
The permittee is responsible for the geographic accuracy of any map submitted, however
produced_
Liner Requirements:
The lagoon shall have either a liner of natural material at least one (1) foot in thickness
and having a hydraulic conductivity of no greater than 1 x 10-6 centimeters per second
when compacted, or a synthetic liner of sufficient thickness to exhibit structural integrity
and an effective hydraulic conductivity no greater than that of the natural material liner,
according to 15A NCAC 2H .0219(f).
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Applicable Boundaries:
6. The COMPLIANCE BOUNDARY for the disposal system is specified by regulations in
15A NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary
for the disposal system individually permitted prior to December 31, 1983, is established
at either 500 feet from the waste disposal area, or at 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
according to 15A NCAC 2L.01 06(d)(2).
7. The COMPLIANCE BOUNDARY for the disposal system is specified by regulations in
15A NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary
for the disposal system individually permitted after December 31, 1983, is established at
either 250 feet from the waste disposal area, or 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 rernediation
action according to 15A NCAC 2L .0I 06(d)(2).
8. The 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 action in accordance with
15A NCAC 2L .0106(d)(1).
Additional Requirements:
9. Any groundwater quality monitoring, as deemed necessary by the Division, shall be
provided.
V. INSPECTIONS
Adequate inspections, maintenance, and cleaning shall be provided by the Pennittee
to ensure 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.
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I 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.
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 Permittee, a formal permit
request must be submitted to the Division 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 in accordance with
North Carolina General Statutes 143-215.6A to 143-215.60.
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) that 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
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 214.0205(c)(4),
8. The Permittee, at least six months prior to the expiration of this pen -nit, 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.
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Town of Stovall
Non -Discharge Permit No. WQ0014046
Permit issued this the 14th day of June, 2002.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
ah W. Klimek, P`i✓.,/pir`ector
,islon of Water Quality
Authority of the Environmental Management Commission
Permit No. WQ0014046

Town of Stovall
Non -Discharge Permit No. WQ0014046
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 modifications to the town of Stovall's existing wastewater treatment and
disposal facility serving the town of Stovall, located in Granville County, hereby state that to the
best of my abilities, due care and diligence was used in the observation of the following
construction:
The addition of 3.96 acres of new spray fields (divided into two fields); to serve the town of
Stovall with no discharge of wastes to surface waters, pursuant to the application received
September 21, 2001 and in conformity with the project plan, specifications, and other supporting
data subsequently filed and approved by the Department of Environment and Natural Resources.
The addition of the spray fields increases the existing capacity from 62,000 GPD to a new
capacity of 69,000 GPD on an average annual basis.
I certify that the construction of the above -referenced project was observed to be built within
substantial compliance and intent of the approved plans and specifications.
Signature
Date
Registration No.
Mail this Certification to: DENR/DWQ
Non Discharge Permit Unit
Water Quality Section
1617 Mail Service Center
Raleigh, NC 27699-1617