WQ0031030_Final Permit_20070125

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Michael F. Easley, Governor
r, William G. Ross Jr., Secretary
North Carolina Department of Enviruntnent and Natural Resources
3 y
D Alan W. Klimek, P.E. Director
Division of Water Quality
January 25, 2007
MICHAEL WARREN - SUPERINTENDENT
CURRITUCK COUNTY BOARD OF EDUCATION
2958 CARATOKE HIGHWAY
CURRITUCK, NORTH CAROLINA 27929
Subject: Permit No. WQ0031030
North Elementary School
Wastewater Treatment and
Low -Rate Infiltration System
Currituck County
Dear Mr. Warren:
In accordance with your permit application request received November 21, 2006, and subsequent
additional information received December 19, 2006, December 27, 2006 and January 24, 2007, we are
forwarding herewith Permit No. WQ0031030, dated January 25, 2007, to Currituck County Board of
Education for the construction and operation of the subject wastewater treatment and low -rate infiltration
facilities.
This permit shall be effective from the date of issuance until December 31, 2011, 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, 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 Nathaniel Thornburg at (99) 715-6160 or
[e-mail].
Sine r fy
,,4 Alan W. Klimek, P.E.
cc: Currituck County Health Department
Washington Regional Office, Aquifer Protection Section
Joseph J. Anlauf, PE — Quible & Associates, P.C.
Technical Assistance and Certification Unit
APS Central Files
LAU piles
ye
NorthCarolina
Nawridly
Aquifer Protection Section 1636 Mail Service Center Raleigh, NC 27699-1636 Phone [phone] Customer Service
Internet: h2o.enr.state.nc.us 2728 Capital Boulevard Raleigh, NC 27604 FAX [phone]
An Equal Opportunity/Affirmative Action Employer — 50% Recycled/10% Post Consumer Paper

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RALEIGH
LOW -RATE INFILTRATION 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
Currituck County Board of Education
Currituck County
FOR THE
construction and operation of an 8,400 gallon per day (GPD) low -rate infiltration treatment and disposal
facility consisting of:
a 4,000 gallon grease trap; a 10,000 gallon baffled septic tank; a 10,000 gallon flow equalization tank
with two (2) 35 gallon per minute (GPM) submersible pumps and one(1) submersible aerator; a Bioclere
Unit Model # 30/32 with a 2,300 gallon clarifier and three (3) submersible dosing/sludge return pumps; a
Bioclere Unit Model ## 36/24 with a 3,500 gallon clarifier and three (3) submersible dosing/sludge return
pumps; a 2,250 gallon moving bed anoxic tank with one (1) 2 horsepower (hp) mixer; an 8,000 gallon
tank separated into a 2,571 gallon aeration chamber with two (2) submersible aerators, a 2,571 primary
clarifier chamber with two (2) 40 GPM submersible sludge return pumps, and a 2,674 gallon secondary
clarifier chamber with an effluent filter; a tablet chlorinator; a 5,000 gallon dosing tank with two (2) 83
GPM upset storage pumps and two (2) 55 GPM infiltration basin dosing pumps; a magnetic flow meter;
an interconnected 15,000 gallon and 12,000 gallon upset storage with two (2) 71 GPM upset storage
return pumps; an auxiliary generator; a 6,323,670 gallon infiltration basin with an effective volume of
1,366,670 gallons (i.e., 163 days of storage) and a low -rate infiltration rate of 0.096 gallons per day per
square foot (GPD/f z)
to serve 700 students and associated staff at North Elementary School, with no discharge of wastes to the
surface waters, pursuant to the application received November 21, 2006, and subsequent additional
information received by the Division of Water Quality (Division), and in confonnity 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 December 31, 2011, and shall be
subject to the following specified conditions and limitations:
WQ0031030 Version 1.0 Page 1 of 10

I. SCHEDULES
1. In accordance with 15A NCAC 2T .0507, the Permittee shall submit an Operation and Maintenance
(O & M) Plan for the wastewater treatment and infiltration system. This O & M plan shall include at
a minimum:
✓ Describe the operation of the system in sufficient detail to show what operations are necessary for
the system to function and by whom the functions are to be conducted.
✓ Describe anticipated maintenance of the system.
✓ Include provisions for safety measures including restriction of access to the site and equipment.
✓ Include spill control provisions such as response to upsets and bypasses including control,
containment and remediation, as well as contact information for plant personnel, emergency
responders and regulatory agencies.
The O&M plan shall be submitted in conjunction with the above mentioned information in Condition
I(1) and with a minor modification request to change the permit status from construction only to
construction and operation.
2. Upon completion of construction and prior to operation of this permitted facility, a certification (see
attached form) 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 including the location of all monitoring wells as applicable. If this proiect is to
be completed in phases and partially certified, you shall retain the responsibility to track further
construction aDDroved under the same permit, and shall provide a final certificate of completion once
the entire project has been completed. Mail the Certification to the Aquifer Protection Section,
Division of Water Quality, 1636 Mail Service Center, Raleigh, NC 27699-1636,
3. The Washington Regional Office, telephone number [phone], shall be notified at least forty-
eight (48) hours in advance (excluding weekends and holidays) 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.
4. Monitoring wells MW-1, MW-2 and MW-3, and piezometers PZ-1, PZ-2, PZ-3 and PZ-4 shall be
approved by the Washington Regional Office, telephone number [phone] prior to installation
and installed prior to beginning waste disposal operations. The regional office shall be notified at
least forty-eight (48) hours prior to (excluding weekends and holidays) the construction of any
monitoring well. Such notification to the regional Aquifer Protection 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. The well(s) 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 general location and
name for each well is marked on Figure 1 (i.e., Site Map). See also well construction form submittal
requirements in Section IV of this permit.
WQ0031030 Version 1.0 Page 2 of 10

5. Within sixty (60) days of completion of all monitoring well(s), the permittee shall submit two original
copies of a scaled site map (scale no greater than V=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.
e. 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. The maps and
any supporting documentation shall be sent to the N.C. Division of Water Quality, Aquifer Protection
Section, 1636 Mail Service Center, Raleigh, N.C. 27699-1636. The permittee is responsible for the
geographic accuracy of any map submitted, however produced.
6. Within sixty (60) days of permit issuance, temporary wells TW-I, TW-2, TW-3, TW4 and TW-5
shall be permanently abandoned. Within thirty (30) days of abandonment, a Well Abandonment
Record (GW-30 form) that lists this permit number and the appropriate monitoring well identification
number shall be completed for each well abandoned and mailed to N,C. Division of Water Quality,
Aquifer Protection Section, 1636 Mail Service Center, Raleigh, N.C. 27699-1636. The well(s) must
be abandoned by a North Carolina Certified Well Contractor according to the North Carolina Well
Construction Standards (15A NCAC 2C .0113) and local county rules.
7. A waste -level gauge, to monitor waste levels in the low -rate infiltration basin, shall be installed prior
to operation.
8. No later than six (6) months prior to the expiration of this permit, the Permittee shall request renewal
of this permit on official Division form(s). Upon receipt of the request, the Division 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.
9. The subject wastewater treatment and disposal facilities shall be connected to an operational publicly
owned wastewater collection system within 180 days of its availability to the subject facilities, if the
subject wastewater treatment or disposal facilities are in noncompliance with the terms and conditions
of this non -discharge permit or the governing statutes or regulations. Prior to the initiation of these
connection activities, appropriate approval must be received from this Division.
WQ0031030 Version 1.0 Page 3 of 10

11. PERFORMANCE STANDARDS
1. The low -rate infiltration facilities shall be effectively maintained and operated at all times so that
there is no discharge to the surface waters, nor any contravention of groundwater or surface water
standards. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions or failure of the infiltration basin to adequately assimilate the wastewater, the
Permittee shall take immediate corrective actions including those actions that may be required by the
Division, such as the construction of additional or replacement wastewater treatment and disposal
facilities.
2. The issuance of this permit shall not relieve the Permittee of the responsibility for damages to ground
or surface waters resulting from the operation of this facility.
3. All wells that are constructed for purposes of groundwater monitoring shall be constructed in
accordance with 15A NCAC 02C .0108 (Standards of Construction for Wells Other than Water
Supply) and any other state and local laws and regulations pertaining to well construction.
4. Effluent limitations shall not exceed those specified in Attachment A.
5. Application rate(s), whether hydraulic, nutrient, or other pollutant shall not exceed those specified in
Attachment B.
6. The COMPLIANCE BOUNDARY for the disposal system is specified by rules in 15A NCAC 02L,
Groundwater Classifications and Standards. This disposal system was individually permitted on or
after December 30, 1983; therefore, the Compliance Boundary 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 Standards at or beyond the Compliance Boundary is
subject to rernediation action according to 15A NCAC 02L .0106(d)(2) as well as enforcement
actions in accordance with North Carolina General Statute 143-215.6A through 143-215.6C.
7. The Permittee shall apply for a permit modification prior to any sale or transfer of property that
affects a compliance boundary to establish a new compliance boundary.
8. In accordance with 15A NCAC 02L .0107(d), no wells, other than monitoring wells, shall be
constructed within the compliance boundary except as provided by 15A NCAC 02L .0107(g).
9. 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.
WQ0031030 Version 1.0 Page 4 of 10

10. The facilities permitted herein must be constructed according to the following setbacks:
a. The setbacks for the infiltration basin shall be as follows (all distances in feet):
i. Any habitable residence or place of public assembly under separate ownership: 400
ii. Any habitable residence or place of public assembly owned by the permittee: 200
iii. Any private or public water supply source: 100
iv. Surface waters: 200
v. Groundwater lowering ditches: 200
vi. Surface water diversions: 100
vii. Any well with exception of monitoring wells: 50
viii.Any property line:
100
ix. Top of slope of embankments or cuts of two feet or more in vertical height:
200
x. Any water line from a disposal system:
100
xi. Subsurface groundwater lowering drainage systems:
10
xii. Any swimming pool:
100
xiii.Public right of way:
50
xiv. Nitrification field:
20
xv. Any building foundation or basement:
15
xvi. impounded public water supplies:
500
xvii. Public shallow groundwater supply (less than 50 feet deep):
500
b. The setbacks for treatment and storage units shall be as follows (all distances in feet):
i. Any habitable residence or place of public assembly under separate ownership: 100
ii. Any private or public water supply source: 100
iii. Surface waters: 50
iv. Any well with exception of monitoring wells: 100
v. Any property line: 50
11. A usable green area shall be maintained for wastewater disposal. The green area shall have the
capability of accommodating the average daily flow of the facility being served without exceeding the
loading rates of the green area. A "green area", as defined in 15A NCAC 02H .0404 (g)(7), is an area
suitable for waste disposal, either in its natural state or which has been modified by planting a
vegetative cover of grasses or low growing shrubbery.
III. OPERATION AND MAINTENANCE REQUIREMENTS
1. The facilities shall be properly maintained and operated at all times. 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. The Permittee shall maintain an Operation and
Maintenance Plan pursuant to 15A NCAC 02T .0507 including operational functions, maintenance
schedules, safety measures, and a spill response plan.
I Upon classification of the wastewater treatment and infiltration facilities by the Water Pollution
Control System Operators Certification Commission (WPCSOCC), the Perrnittee 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 08G .0200. The ORC shall visit
the facilities in accordance with 15A NCAC 08G .0200 or as specified in this permit and shall comply
with all other conditions specified in these rules.
WQ0031030 Version 1.0 Page 5 of 10

3. All waste application equipment must be tested and calibrated at least once per year. Records of the
calibration must be maintained for five years.
4. No type of wastewater other than that from North Elementary School shall be disposed in the
infiltration basin.
5. An automatically activated standby power source shall be on site and operational at all times capable
of powering all essential treatment units. If a generator is employed as an alternate power supply, it
shall be tested weekly by interrupting the primary power source.
6. Public access to the wastewater treatment plant and infiltration basin shall be controlled using
lockable gates and an eight (8) foot tall chain link fence.
7. The residuals generated from these treatment facilities must be disposed / utilized in accordance with
15A NCAC 02T .1100. The Permittee shall maintain a Residual Management Plan pursuant to 15A
NCAC 02T .0508.
8. Diversion or bypassing of the untreated wastewater from the treatment facilities is prohibited.
9. Freeboard in the low -rate infiltration basin shall not be less than two (2) feet at any time.
10. A waste -level gauge, to monitor waste levels in the low -rate infiltration basin, shall be provided. This
gauge shall have readily visible permanent markings indicating the maximum liquid level at the top of
the temporary liquid storage volume, minimum liquid level at the bottom of the temporary liquid
storage volume, and the lowest point on top of the dam elevations.
11. A protective vegetative cover shall be established and maintained on all earthen basin embankments
(outside toe of embankment to maximum allowable temporary storage elevation on the inside of the
embankment), berms, 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.
IV. MONITORING AND REPORTING RE UMMENTS
Any monitoring (including groundwater, surface water, soil or plant tissue analyses) deemed
necessary by the Division to ensure surface and ground water protection will be established and an
acceptable sampling reporting schedule shall be followed.
2. Flow through the treatment facility shall be continuously monitored and daily average flow values
shall be reported on Form NDMR. Flow may be estimated from water use records provided water
use is metered. Daily average values shall be calculated by dividing monthly flow volume by the
number of days in the month.
All laboratory analyses for effluent, ground waters, or surface waters shall be made by a laboratory
certified by the Division for the required parameter(s) under 15A NCAC 02H .0800.
4. The effluent from the subject facilities shall be monitored by the Permittee at the frequencies and
locations for the parameters specified in Attachment A.
5. Freeboard (waste level to the lowest elevation on the top of the embankment) in the low -rate
infiltration basin shall be recorded weekly.
6. Monitor wells and piezometers shall be sampled after construction and within three (3) months prior
to initiating waste disposal operations. Monitor wells and piezometers shall be sampled thereafter at
the frequencies and for the parameters specified in Attachment C. All mapping, well construction
forms, well abandonment forms, and monitoring data shall refer to the permit number and the well
nomenclature as provided in Attachment C and Figure 1.
WQ0031030 Version 1.0 Page 6 of 10

7. 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 Construction Record) that lists this permit number and the appropriate
monitoring well identification number with the Compliance Monitoring Form (GW-59) for that well.
Initial Compliance Monitoring Forms that do not include copies of the GW-1 form are incomplete
and may be returned to the permittee without being processed.
8. Two (2) copies of the results of the sampling and analysis must be received on Form GW-59
(Groundwater Quality Monitoring: Compliance Report Form), along with attached copies of
laboratory analyses, by the Division of Water Quality, Information Processing Unit, 1617 Mail
Service Center, Raleigh, North Carolina 27699-1617 on or before the last working day of the month
following the sampling month. Form GW-59 shall include the number of this permit and the
appropriate well identification number. One Form GW-59a certification form shall be provided for
each set of sampling results submitted.
9. Three (3) copies of all monitoring data [as specified in Conditions 1V(2) and IV(4)] on Form NDMR
and three (3) copies of all operation and disposal records [as specified in Condition IV(5)] on Form
NDAR-1 shall be submitted on or before the last day of the following month. If no activities occurred
during the monitoring month, monitoring reports are still required documenting the absence of the
activity. All information shall be submitted to the following address:
Division of Water Quality
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
10. Noncompliance Notification:
The Permittee shall report by telephone to the Washington Regional Office, telephone number (252)
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 including discharge from the infiltration basin.
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 disposal system resulting in a by-pass directly to receiving waters.
d. Any time that self -monitoring information indicates that the facility has gone out of compliance
with its permit limitations including, but not limited to, freeboard measurements, effluent
limitations, exceedances of groundwater standards, or overloading of any field.
For any emergency that requires immediate reporting (e.g., discharges to surface waters, imminent
failure of a storage structure, etc.) outside normal business hours must be reported to the Division's
Emergency Response personnel at telephone number [phone], [phone], 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 ensure that the problem does not recur.
WQ0031030 Version 1.0 Page 7 of 10

V. INSPECTIONS
1. Adequate inspection and maintenance shall be provided by the Permittee 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 five 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.
NI. GENERAL CONDITIONS
I. 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-
215.5A to 143-215.6C.
2. 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.
3. This permit is effective only with respect to the nature and volume of wastes described in the
application and other supporting data. No variances to applicable rules governing the construction
and 1 or operation of the permitted facilities are granted unless specifically requested and granted in
this permit.
4. 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) that have jurisdiction. Of particular concern to the Division are applicable river buffer
rules in 15A NCAC 02B .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 02B .0200 and 02H .0500.
5. 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 on official Division form(s),
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. The
Permittee of record shall remain fully responsible for compliance until a permit is issued to the new
owner.
6. The Permittee shall retain a set of approved plans and specifications for the life of the facilities
permitted herein.
7. The Permittee shall maintain this permit until all permitted facilities herein are properly closed or
permitted under another permit issued by the appropriate permitting authority.
WQ0031030 Version 1.0 Page 8 of 10

8. The Permittee must pay the annual fee 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
pursuant to 15A NCAC 02T .0105(e).
Permit issued this e 25'' day of January 2007
NORTT CC OLINA VIRONMENTAL MANAGEMENT COMMISSION
! S R�
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number WQ0031030
WQ0031030 Version 1.0 Page 9 of 10

Permit No. WQ0031030
January 25, 2007
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 Name
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 construction 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.
WQ0031030 Version 1.0 Page 10 of 10

ATTACHMENT A - LIMITATIONS AND MONITORING REQUIREMENTS
PPI 001 WWTF Effluent
Permit Number: WQ0031030 Version: 1.0
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
MONITORING REQUIREMENTS
Parameter Description - PCS Code
Monthly Average
Weekly Average
Daily Maximum
Measurement
Frequency
Sample
Type
Flow, in Conduit or thru Treatment Plant - 50050
8,400
gpd
Monthly
Calculated
Chlorine, Total Residual — 50060
Weekly
Grab
Solids, 'Total Dissolved - 70300
3 X Year
Grab
Coliforrn, Fecal MF, M-FC Broth, 44.5C - 31616 (geometric mean)
200
11/100m1
4 X Year
Grab
Chloride (as Cl) - 00940
3 X Year
Grab
BOD, 5-Day (20 Deg. C) - 00310
30
mg/l
4 X Year
Grab
Solids, Total Suspended - 00530
30
mg/1
4 X Year
Grab
Nitrogen, Ammonia Total (as N) - 00610
15
mg/1
4 X Year
Grab
Nitrogen, Kjeldahl Total (as N) - 00625
4 X Year
Grab
Nitrogen, Nitrate Total (as N) - 00620
10
mg/l
4 X Year
Grab
pH - 00400
Weekly
Grab
3 X Year = March, July & November
4 X Year = March, June, September & December
Attachment A _"z I of 1

ATTACHMENT B - APPROVED LAND APPLICATION SITES AND LIMITATIONS
Currituck County Board of Education — North Elementary School
Permit Number: WQ0031030 Version: 1.0
FIELD INFORMATION
APPLICATION LIMITATIONS
Field/
Zone Id
Owner
County
Latitude
Longitude
Net
Acreage
Dominant
Soil Series
Parameter
Rate
Yearly
Max
Chits
IB-1
Currituck County Board of
Education
Currituck
36° 26' 11"
-76° 05' 07"
2.01
Roanoke
01284 - Application Surface Irrigation
0.096
GPD/ft2
Total
2.01
DRAFT WQ0031030p070125 Attachment B Page I of 1

ATTACHMENT C — GROUNDWATER MONITORING AND LIMITATIONS
Piezometers: PZ-1, PZ-2, PZ-3 & PZ-4
Permit Number: WQ0031030 Version: 1.0
GROUNDWATER CHARACTERISTICS
GROUNDWATER STANDARDS
MONITORING REQUIREMENTS
Parameter Description - Parameter Code
Daily Maximum
Frequency Measurement
Sample Type
Footnotes
Water level, distance from :measuring point - 82546
3 x year
Calculated
1, 2, 3
1. 3 X year monitoring shall be conducted in March, July & November.
2. The depth to water in each piezometer shall be measured from the surveyed point on the top of the casing.
3. The measuring points (top of well casing) of all piezometers shall be surveyed to provide the relative elevation of the measuring point for each piezometer. The measuring
points (top of casing) of all piezometers shall be surveyed relative to a common datum.
Monitoring wells: MW-1, MW-2 & MW-3
GROUNDWATER CHARACTERISTICS
GROUNDWATER STANDARDS
MONITORING REQUIREMENTS
Parameter Description - Parameter Code
Daily Maximum
Frequency Measurement
Sample Type
Footnotes
Water level, distance from measuring point - 82546
ft
3 x year
Calculated
1, 2, 3
Coliforrn, Fecal MF - 31616
1
#/100ml
3 x year
Grab
1
Solids, Total Dissolved-180 Deg C - 70300
500
mg/1
3 x year
Grab
1
pH - 00400
6.5-8.5
S.U.
3 x year
Grab
1,2
Chloride (as Cl) - 00940
250
mg/1
3 x year
Grab
1
Carbon, Tot Organic (TOC) - 00680
mg/1
3 x year
Grab
1
Nitrogen, Ammonia Total (as N) - 00610
mg/1
3 x year
Grab
I
Nitrogen, Nitrate Total (as N) - 00620
10
mg/1
3 x year
Grab
1
Volatile Organic Compounds (GC/MS) - 78732
mg/1
Annual
Grab
1,4
1, 3 X year monitoring shall be conducted in March, July & November; Annual monitoring shall be conducted every November.
2. The measurement of water levels shall be made prior to purging the wells. The depth to water in each well shall be measured from the surveyed point on the top of the casing.
The measurement of pH shall be made after purging and prior to sampling for the remaining parameters.
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. The
measuring points (top of casing) of all monitoring wells shall be surveyed relative to a common datum.
Attachment C age 1 of 2

4. Volatile Organic Compounds (VOC) - In November only, analyze by one of the following methods:
a. Standard Method 6230D, PQL at 0.5 µg/L or less
b. Standard Method 6210D, PQL at 0.5 µg/L or less
c. EPA Method 8021, Low Concentration, PQL at 0.5 µg/L or less
d. EPA Method 8260, Low Concentration, PQL at 0.5 µg/L or less
e. Another method with prior approval by the Aquifer Protection Section Chief
Any method used must meet the following qualifications:
i. A laboratory must be DWQ certified to run any method used.
ii. The method used must, at a minimum, include all the constituents listed in Table VI11 of Standard Method 6230D.
iii. The method used must provide a PQL of 0.5 µg/L or less that must be supported by laboratory proficiency studies as required by the DWQ Laboratory Certification Unit.
Any constituents detected above the MDL but below the PQL of 0.5 µg/L must be qualified (estimated) and reported.
5. If any volatile organic compounds (VOC) are detected as a result of monitoring as provided in Attachment C, then the Washington Regional Office Aquifer Protection
Supervisor, telephone number [phone], must be contacted immediately for further instructions regarding any additional follow-up analyses required.
6. If TOC concentrations greater than 10 mg/l 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. .
7. Monitoring wells shall be reported consistent with the nomenclature and location information provided in Figure 1 and this attachment.
Attachment C Page 2 of 2

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Name: CURRITUCK Location: 036° 26' 11.86" N 076° 05' 11.87" W
Cate: 12/8/2006 Caption: NORTH CURRITUCK ELEMENTARY SCHOOL
Scale: 1 inch equals 2000 feet Wastewater Treatment Facility
370 Shawboro Road
Copyright (C) 1998, Maptach, Inc

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