HomeMy WebLinkAboutWQ0022725_Final Permit_20031112�OF A r�Q Michael F. Easley, Governor
William G. Ross Jr., Secretary
CID 7
7DILU
7 North Carolina Department of Environment and Natural Resources
i
p Alan W. i{limek, P.E., Director
Division of Water Quality
November 12, 2003
Mr. John W. Dixon
Slash Creek, LLC
PO Box. 1327
Nags Head, NC 27959
Subject: Permit No. WQ0022725
Slash Condominiums
Wastewater Treatment and Reclaimed Water
Utilization System
Dare County
Dear Mr. Dixon:
In accordance with your permit application received June 12, 2003, and subsequent additional information received
September 10, 2003 we are forwarding herewith Permit Number. WQ0022725, dated November 12, 2003, to Slash Creek
LLC for the construction and operation of the subject wastewater treatment and reclaimed water utilization system.
This permit small be effective from the date of issuance until October 31, 2008, and shall be subject to the conditions
and Iimitations 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.
Please pay careful attention to the monitoring and reporting requirements in this permit. Please also note Condition
VI. 3 of this permit requiring a change of ownership to be filed with the Division prior to operation of this system.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request 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 the North Carolina General Statutes, and filed with the Office of
Administrative Hearings, 6714 Mail Service Center, Raleigh, NC 27699-6714. 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 Sue Homewood at (919) 733-5093 extension 502.
Sincerel ,
4-Alan W. Klimek, P.E.
cc: Dare County Health Department
Washington Regional Office, Water Quality Section
Washington Regional Office, Groundwater Section
Groundwater Section, Central Office
Quible & Associates, P.C.
Technical Assistance and Certification Unit
Water Quality Central Files
NDPU Files
Non -Discharge Permitting Unit Internet http://h2o.enr.nc.state.us/ndpu
I617 Mail Service Center, Raleigh, NC 27699-1617 Telephone (919) 733-5083 Fax (919) 715-6048
DENR Customer Service Center Telephone 1 800 623-7748
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NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RALEIGH
WASTEWATER TREATMENT AND RECLAIMED WATER UTILIZATION 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
Slash Creek LLC
Dare County
FOR THE
construction and operation of a 18,000 GPD wastewater treatment and reclaimed water utilization system
consisting of an influent bar screen, a 7,277 gallon flow equalization basin with dual 0.54 Hp mixing pumps, dual
0.54 Hp equalization pumps that discharge to a flow control box, one 5 Hp aspirating aerator; a 2,803 gallon
sludge holding basin with a 0.54 Hp decant pump, a 5 Hp aspirating aerator; dual 2,102 gallon anoxic basins with
one 0.54 Hp mixing pump each, one 5 Hp aspirating aerator each, one 1.0 Hp MLSS return pump each
discharging to either the anoxic basin or sludge holding basin; dual 2,114 gallon clarifier with one 0.54 Hp scum
return pump each, one 0.54 Hp sludge return pump each; dual 6.0 square foot 1.04 gpmlft2 tertiary filters with a
0.5 Hp blower for air scouring; 1,944 gallon mudwell with dual 0.54 Hp pumps, 2,238 gallon clearwell with dual
2.0 Hp backwash pumps; ultra sonic flow measurement; Hack 1720 D Turbidirneter; an 8" by 69.5" four lamp
UV disinfection unit; three 35,000 gallon fiberglass underground storage tanks for five-day upset storage; a
273,000 gallon storage pond with dual 45 gpm irrigation pumps and 18 spray irrigation zones with a total
irrigation area of 31,592 flz
to serve Slash Condominiums with no discharge of wastes to the surface waters, pursuant to the application
received June 12, 2003 and subsequent additional information received by the Division, 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 permit shall be effective from the date of issuance until October 31, 2008, 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, and other supporting materials. If
this. project is to be completed in phases and partially certified, you shall retain the responsibility to
track further construction app oved under the same permit, and shall provide, a final certificate of
completion once the entire project has been completed. Mail the Certification to the Non -Discharge
Permitting Unit, 1617 Mail Service Center, Raleigh, NC 27699-1617.
2. The Washington Regional Office, telephone number 336-771-4600, shall be notified at least forty-
eight (48) hours in advance of operation of the installed facilities so that an in -place inspection can be
made. Such notification to the regional supervisor shall be made during the normal office hours from
8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays.
3. The reclaimed water utilization 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 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 wastewater treatment and 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. The residuals generated from these treatment facilities must be disposed in accordance with General
Statute 143-215.1 and in a manner approved by the Division.
6. Diversion or bypassing of the untreated wastewater from the treatment facilities is prohibited.
7. The following buffers shall be maintained:
a. 100 feet between wetted areas and water supply wells,
b. 100 feet between wetted areas and waters classified as SA,
c. 25 feet between wetted areas and surface waters not classified as SA,
d. 100 feet between wastewater treatment units and wells,
e. 50 feet between reclaimed water storage/irrigation ponds and property lines, and
f. 50 feet between wastewater treatment units and property lines.
Public access to the irrigation sites shall be controlled during active site use. Such controls may
include the posting of signs showing the activities being conducted at each site. A sign shall be
posted in plain sight of all irrigation areas showing these activities.
9. A leakage test shall be performed on all tanks to insure that any exfiltration occurs at a rate which
does not exceed twenty (20) gallons per twenty-four (24) hours per 1,000 gallons of tank capacity.
The engineer's certification will serve as proof of connpliance with this condition.
10. The disposal system shall be connected to a rain or moisture sensor that shall indicate when
wastewater application is not appropriate in accordance with Condition H(4) of this permit.
11. The following shall be requirements for the reclaimed water distribution, storage, and utilization
facilities:
a. All reclaimed water valves, storage facilities, and outlets shall be tagged or labeled to warn the
public or employees that the water is not intended for drinking. Where appropriate, such warning
shall inform the public or employees to avoid contact with the water.
b. All reclaimed water piping, valves, outlets, and other appurtenances shall be color -coded, taped,
or otherwise marked to identify the source of the water as being reclaimed water.
i. All reclaimed water piping and appurtenances shall be either colored purple (i.e., Pantone
522) and embossed or integrally stamped or marked "CAUTION: RECLAIMED WATER --
DO NOT DRINK" or be installed with a purple (i.e., Pantone 522) identification tape or
polyethylene vinyl wrap. The warning shall be stamped on opposite sides of the pipe and
repeated every three feet or less.
ii. Identification tape shall be at least three inches wide and have white or black lettering on
purple (i.e., Pantone 522) field stating "CAUTION: RECLAIMED WATER — DO NOT
DRINK." Identification tape shall be installed on top of reclaimed water pipelines, fastened
at least every 10 feet to each pipe length and run continuously the entire length of the pipe.
c. All reclaimed water valves and outlets shall be of a type, or secured in a manner, that permits
operation by authorized personnel only.
d. Above -ground hose bibs (i.e., spigots or other hand -operated connections) shall not be
present. Hose bibs shall be located in locked below -grade vaults that shall be clearly
labeled as being of non -potable quality. As an alternative to the use of locked below -
grade vaults with standard hose bibs services, hose bibs, which can only be operated by a
special tool or connected to a special hose connection may be placed in non -lockable
underground services boxes clearly labeled as non -potable water.
II. OPERATION AND MAINTENANCE REQUIREMENTS
The facilities shall be properly maintained and operated at all times.
2. Upon classification of the wastewater treatment and irrigation facilities by the Water Pollution
Control System Operators Certification Commission (WPCSOCC), the Permittee shall designate and
employ a certified operator to be in responsible charge (ORC) and one or more certified operator(s) to
be back-up ORC(s) of the facilities in accordance with 15A NCAC 8G .0201. The ORC shall visit
the facilities in accordance with 15A NCAC 8G .0204 or as specified in this permit and shall comply
with all other conditions specified in these rules.
3. A suitable, year-round vegetative cover shall be maintained on all irrigation areas.
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 irrigation 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 shall not exceed a cumulative loading of 343 inches over any twelve (12) month
period at an, instantaneous application rate not to exceed 0.04 inches per hour.
8. An automatically activated standby power source shall be on site and operational at all times. If a
generator is employed as an alternate power supply, it shall be tested weekly by interrupting the
primary power source.
12. No type of wastewater other than that from Slash Condominiums shall be irrigated onto the irrigation
area.
13. Freeboard in the storage pond shall not be less than two feet at any time.
14. Waste -level gauges, to monitor waste levels in the storage pond and underground five day upset
storage tanks, shall be installed. The gauges shall have readily visible permanent markings indicating
the maximum liquid level, and for the storage pond also the top of the dam elevation. Caution must
be taken not to damage the integrity of any liner or tank when installing the gauge.
15. A protective vegetative cover shall be established and maintained on all earthen basin embankments
(outside toe of embankment to maximum pumping elevation), beans, pipe runs, erosion control areas,
and surface water diversions. Trees, shrubs, and other woody vegetation shall not be allowed to grow
on the earthen basin dikes or embankments. Earthen basin embankment areas shall be kept mowed or
otherwise controlled and accessible.
16. All wastewater shall be routed to the five-day holding pond should the limit for fecal coliform (daily
maximum concentration of 25 per 100 ml) or turbidity (instantaneous maximum of 10 NM be
exceeded, until such time that the problems associated with the treatment capability of the wastewater
treatment plant have been corrected. The wastewater in the five-day holding pond shall be pumped
back to the treatment plant for retreatment or treated in the five-day pond prior to discharge to the
storage pond.
17. The irrigation areas shall be designated and referred to on all reporting forms as:
Zone # Total Wetted Area (ft2),
1
1757
2
1561
3
1053
4
1054
5
1924
6
1732
7
1924
8
1924
9
1924
10
1539
11
1924
12
1924
13
1924
14
1924
15
1924
16
1539
17
1924
18
1924
III. MONITORING AND REPORTING REQUIREMENTS
1. Any monitoring (including groundwater, surface water, soil or plant tissue analyses) deemed
necessary by the Division to insure surface and ground water protection will be established and an
acceptable sampling reporting schedule shall be followed.
2. Influent flow shall be continuously monitored and daily flow values shall be reported on Form
NDMR.
The Permittee shall install an appropriate flow measurement device consistent with approved
engineering and scientific practices to ensure the accuracy and reliability of influent flow
measurement. Flow measurement devices selected shall be capable of measuring flows with a
maximum deviation of less than 10 percent from true flow, accurately calibrated at a minimum of
once per year, and maintained to ensure that the accuracy of the measurements is consistent with the
accepted capability of that type of device. Records of flow measurement device calibration shall be
kept on file by the Permittee for a period of at least three years. At a minimum, data to be included in
this documentation shall be:
a. Date of flow measurement device calibration
b. Name of person performing calibration
c. Percent from true flow
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3.
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As an indicator of proper operation and maintenance, the facility shall produce an effluent in
compliance with the following limitations:
Parameter Monthly Averagea _ Daily (Instantaneous) Maximum_c
Flow 18,000 GPD
BODS (5-day, 20°C) 10 mg/1 15 mg/l
NH3 as N 4 mg/l 6 mg/l
Total Nitrogen 10 mg/l
TS S 5 mg/1 10 mg/l
Fecal Coliform 14 per 100 ml b 25 per 100 ml
Turbidity 10 NTU
The effluent pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
a
Monthly averages for all but fecal coliform shall be the arithmetic mean of all samples collected
during the reporting period.
b
Monthly average for fecal coliforrn shall be the geometric mean of all samples collected during the
reporting period.
Daily maximum shall be the maximum value of all samples collected during the reporting period.
The effluent from the subject facilities shall be monitored, by the Permittee, at the sampling vault for
the following parameters:
Parameter
SamplingPoint
Sampling Frequency
Type of Sample
Flow
Influent or Effluent
Continuous
Recording
Turbidity
Effluent
Continuous
Recording
BODS (5-day, 20°C)
Effluent
*2/Month
Composite
NH3 as N
Effluent
*2/Month
Composite
Total Nitrogen
Effluent
*2/Month
Composite
TSS
Effluent
2/1\4onth
Composite
Fecal Coliform
Effluent
2/Month
Grab
Settleable Matter
Effluent
Daily
Grab
Residual Chlorine
Effluent
Daily
Grab
NO3
Effluent
*� Triannually
Grab
TDS
Effluent
Triannually
Grab
TOC
Effluent
Triannually
Grab
Chloride
Effluent
Triannually
Grab
PH
Effluent
r �Triannually
Grab
* 2/Month sampling frequency only during the months of April through October. During the
remainder of the year, these parameters shall be monitored monthly.
Triannually sampling shall be conducted during March, July, and November
If Groundwater sampling indicates or predicts problems with the compliance with Groundwater
Standards, this permit will be modified to include additional and/or more restrictive limitations.
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:
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a. date and time of irrigation,
b. volume of wastewater irrigated,
c. zone irrigated,
d. length of time zone is irrigated,
e. continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings for each zone,
£ weather conditions, and
g. maintenance of cover crops.
5. Freeboard in the storage pond shall be recorded weekly
6. A representative surface water monitoring sample shall be taken at the upstream adjacent surface
water (at the northern most point where the property is adjacent to the canal) and the downstream
adjacent surface water (at the southern most point where the property is adjacent to the canal) every
month. Results of monthly surface water monitoring shall be reported on DMR-3. The monitoring
event shall consist of a single grab sample at each sampling point that is analyzed for the following
parameters:
Fecal Coliform Total Nitrogen
7. Three (3) copies of all monitoring data (as specified in condition 1112 and 111 3) on Form NDMR-1
and three (3) copies of all operation and disposal records (as specified in condition III 4, and 1115) on
Form NDAR-1 and three copies of all surface water monitoring (as specified in condition I116) shall
be submitted monthly on or before the last day of the following month. All information shall be
submitted to the following address:
NC Division of Water Quality
Water Quality Section
Non -Discharge Compliance/Enforcement Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
8. 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.
9. A maintenance log shall be maintained at this facility including but not limited to the following items:
a. Daily sampling results of dissolved oxygen in the aeration basin and at the clarifier weir.
b. Visual observations of the plant and plant site.
c. Record of preventative maintenance (changing of filters, adjusting belt tensions, alarm testing,
diffuser inspections and cleanings, etc.).
d. Date of calibration of flow measurement device.
e. Date and results of power interruption testing on alternate power supply.
10. Noncompliance Notification:
The Permittee shall report by telephone to the Raleigh Regional Office, telephone number (919) 571-
4700, 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.
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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.
Occurrences outside normal business hours may also be reported to the Division's Emergency
Response personnel at telephone number (800) 662-7956, (800) 858-0368, or (919) 733-3300.
Persons reporting such occurrences by telephone shall also file a written report in letter form within
five (5) 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
Waste application activities shall not occur when the vertical separation between depth of application
and the water table is at less than one (1) foot. Verification of elevation can be confirmed by water
level readings obtained from auger borings, which must be done within 24 hours, prior to application
of wastewater. Any open borings must be properly filled with native soil, prior to application to
decrease the chance of any waste contaminating the groundwater.
2. The COMPLIANCE BOUNDARY and REVIEW BOUNDARY for the waste disposal area(s) is
specified by regulations in 15A NCAC 2H, Waste Not Discharge to Surface Waters, specifically
.0219(k)(1)(C)(i)(I11). The Compliance Boundary and the Review Boundary for groundwater shall be
established at the property boundary. An exceedance of Groundwater Quality Standards at or beyond
the Compliance Boundary is subject to remediation action according to 15A NCAC 2L .0106(d)(2).
3. Any groundwater quality monitoring, as deemed necessary by the Division, shall be provided.
V. INSPECTIONS
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 Iog 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 or other permitting authority.
3. Any duly authorized officer, employee, or representative of the Division may, upon presentation of
credentials, enter and inspect any property, premises or place on or related to the disposal site or
facility at any reasonable time for the purpose of determining compliance with this permit; may
inspect or copy any records that must be maintained under the terms and conditions of this permit,
and 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 and 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.
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Upon construction the wastewater treatment, storage, and disposal system shall be deeded to a
franchised utility for operation and maintenance. An ownership change shall be filed with the Division
immediately upon transfer. If the Permittee does not deed this system to a franchised utility upon
construction, the Permittee shall submit an ownership change to the Division to deed the system to a
legally established property owners association. This system shall not be operated until a new permit is
issued to a franchised utility or a property owners association.
4. 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.
5. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to
an enforcement action by the Division in accordance with North Carolina General Statute 143-215.6A
to 143-215.6C.
6. The issuance of this permit does not exempt 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, including but not limited to applicable river buffer rules in 15A NCAC
2B.0200, erosion and sedimentation control requirements in 15A NCAC Chapter 4 and under the
Division's General Permit NCG010000, and any requirements pertaining to wetlands under 15A NCAC
2B .0200 and 2H .0500.
7. A set of approved plans and specifications for the subject project must be retained by the Permittee for
the life of the project.
8. The annual administering and compliance fee must be paid by the Permittee within thirty 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).
9. 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 12"' day of November, 2003
NORTH OL1NA ENVIRONMENTAL MANAGEMENT COMMISSION
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number WQ0022725
Permit No. WQ0022725
November 12, 2003
ENGINEER'S CERTIFICATION
Partial Final
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 Nanze
Location and County
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. constntetion was observed to be built within substantial compliance and intent of
this permit, the approved plans and specifications, and other supporting materials.
Signature
Date
Registration No,
9