WQ0031030_Final Permit_20160825

Water Resources
ENVIRONMENTAL QUALITY
PAT MCCRORY
Goi, mor
DONALD R. VAN DER VAART
Secretary
S. JAY ZIMMERMAN
Director
August 25, 2016
MARK STEFANIK — SUPERINTENDENT
CURRITUCK COUNTY BOARD OF EDUCATION
2958 CARATOKE HIGHWAY
CURRITUCK, NORTH CAROMNA 27929
Dear Mr. Stefanik:
Subject: Permit No. W00031030
Shawboro Elementary School
Other Non -Discharge
Wastewater System
Currituck County
In accordance with your permit renewal request received March 1, 2016, and subsequent additional
information received June 7, 2016 and August 10, 2016, we are forwarding herewith Permit No.
W00031030 dated August 25, 2016, to the Currituck County Board of Education for the continued
operation of the subject wastewater treatment and low -rate infiltration facilities.
This permit shall be effective from the date of issuance until July 31, 2021, shall void Permit No.
W00031030 issued January 25, 2007, and shall be subject to the conditions and limitations as specified
therein. Please pay particular attention to the monitoring requirements listed in Attachments A, B and C
for they may differ from the previous permit issuance. Failure to establish an adequate system for collecting
and maintaining the required operational information shall result in future compliance problems.
Please note the following permit conditions have been removed since the last permit issuance
dated January 25,2007:
➢ Old Condition I. I. — This condition has been removed because the O&M Plan was received
August 10, 2016.
➢ Old Condition I.2. — This condition has been removed because the final engineering
certification has been received.
➢ Old Condition I.3. — Requires notifying the Regional Office to allow an inspection before the
facility is put into operation.
➢ Old Condition 1.4. — Requires approval of monitor wells and piezometers prior to installation.
➢ Old Condition I.5. — This condition has been removed because the site map has been received.
➢ Old Condition 1.6. — Requires abandonment and submission of GW-30 forms
➢ Old Condition 1.7. — Requires installation of a waste -level gauge in the low -rate infiltration
basin.
➢ Old Condition I11.3. — This condition has been deleted because it is not application to low -rate
infiltration basins.
State of North Carolina I Environmental Quality I Water Resources I Water Quality Permitting I Non -Discharge Permitting
1617 Mail Service Center I Raleigh, North Carolina 27699-1617
919 807 6464

Mr. Mark Stefanick
August 25, 2016
Page 2 of 2
➢ Old Condition IV.7. —Requires submission of a GW-1 Form with the first GW-59 Form
Please note the following permit conditions are new since the last permit issuance dated
January 25, 2007:
➢ Condition II.11. — This condition requires the filing of an easement for land owned by others
that is within the compliance boundary
➢ Condition H1.6. — This condition prohibits automobiles or machinery from the infiltration basin
➢ Condition M.13. — This condition requires periodic cleaning of the infiltration basins
➢ Condition IV.S. — This condition requires records tracking the amount of effluent infiltrated
➢ Condition IV.8. — This condition requires a record of all residuals removed from the facility
➢ Condition IV.9. — This condition requires maintaining a maintenance log for the facility
➢ Condition VI.8. — This condition allows the permit to be revoked or modified under certain
circumstances
➢ Condition VI.9. — This condition prohibits the facilities from being expanded if certain
conditions prevail
➢ Attachment A — Total Nitrogen and Total Phosphorous have been added to the list of effluent
sampling parameters.
➢ Attachment C — Total Phosphorous has been added to the list of groundwater sampling
parameters. Total Organic Carbon (TOC) and Volatile Organic Compounds (VOCs) have been
removed from the list of groundwater sampling parameters.
If any parts, requirements or limitations contained in this permit are unacceptable, the Permittee
has the right to request an adjudicatory hearing upon written request within 30 days following receipt of
this permit. This request shall 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 at 6714 Mail Service
Center, Raleigh, NC 27699-6714. Unless such demands are made, this permit shall be final and binding.
If you need additional information concerning this permit, please contact David Goodrich at (919)
807-6352 or david.goodrichna ncdenr.gov.
Sincerely,
S. Jay Zimmerman, P.G., Dnector6
Division of Water Resources
cc: Currituck County Health Department (Electronic Copy)
Mathew Mullins, Currituck County Schools (Electronic Copy) [e-mail].
Washington Regional Office, Water Quality Regional Operations Section (Electronic Copy)
Digital Permit Archive (Electronic Copy)
Central Files

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENTAL QUALITY
RALEIGH
OTHER NON -DISCHARGE WASTEWATER 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
continued operation of an 8,400 gallon per day (GPD) wastewater treatment and low -rate infiltration 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 35 gallon per minute (GPM) submersible pumps and a submersible aerator; a Bioclere Unit Model #
30/32 with a 2,300 gallon clarifier and three submersible dosing/sludge return pumps; a Bioclere Unit
Model # 36/24 with a 3,500 gallon clarifier and three submersible dosing/sludge return pumps; a 2,250
gallon moving bed anoxic tank with a 2 horsepower (hp) mixer; an 8,000 gallon tank separated into a 2,571
gallon aeration chamber with two submersible aerators, a 2,571 gallon primary clarifier chamber with two
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 83 GPM upset storage pumps and two 55
GPM infiltration basin dosing pumps; a magnetic flow meter; an interconnected 15,000 gallon and 12,000
gallon upset storage with two 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/111); and all associated piping, valves,
controls and appurtenances
to serve 700 students and associated staff at the Shawboro Elementary School, with no discharge of wastes
to surface waters, pursuant to the application received March 1, 2016, and subsequent additional
information received by the Division of Water Resources, and in conformity with the project plans,
specifications, and other supporting data subsequently filed and approved by the Department of
Environmental Quality and considered a part of this permit.
This permit shall be effective from the date of issuance until July 31, 2021, shall void Permit No.
WQ0031030 issued January 25, 2007, and shall be subject to the following specified conditions and
limitations:
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I.
No later than six months prior to the expiration of this permit, the Permittee shall request renewal of
this permit on official Division forms. Upon receipt of the request, the Division will review the
adequacy of the facilities described therein, and if warranted, will renew the permit for such period of
time and under such conditions and limitations as it may deem appropriate. Please note Rule 15A
NCAC 02T .0105(d) requires an updated site map to be submitted with the permit renewal application.
[15A NCAC 02T .0105(d), 02T .0106, 02T .0109, 02T .0115(c)]
2. If the subject wastewater treatment or infiltration facilities are in noncompliance with the terms and
conditions of this permit, governing statutes or regulations, the subject facilities shall be connected to
an operational publicly owned wastewater collection system within 180 days of its availability. Prior
to the initiation of these connection activities, appropriate Division approval shall be received. [15A
NCAC 02H .0404(e)]
H. PERFORMANCE STANDARDS
1. ]The subject non -discharge facilities shall be effectively maintained and operated at all times so there
is no discharge to surface waters, nor any contravention of groundwater or surface water standards. In
the event the facilities fail to perform satisfactorily, including the creation of nuisance conditions due
to improper operation and maintenance, or failure of the infiltration areas to adequately assimilate the
effluent, the Permittee shall take immediate corrective actions including Division required actions, such
as the construction of additional or replacement wastewater treatment or infiltration facilities. [G.S.
143-215.1, 143-213.3(a)]
2. This permit shall not relieve the Permittee of their responsibility for damages to groundwater or surface
water resulting from the operation of this facility. [15A NCAC 02B .0200, 02L .0100]
3. All wells 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
jurisdictional laws and regulations pertaining to well construction. [15A NCAC 02C .0108]
4. Effluent quality shall not exceed the limitations specified in Attachment A. [15A NCAC 02T
.0108(b)(1), 02T .0805]
5. Application rates, whether hydraulic, nutrient or other pollutant, shall not exceed those specified in
Attachment B. [15A NCAC 02T .0805]
6. A usable green area shall be maintained for effluent disposal. The green area shall contain at least
1,000 square feet of open green area for each residential unit served, or 2,500 square feet per thousand
gallons per day of waste flow, whichever is less. A green area is defined as 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. [15A NCAC 02H .0404(g)(7)]
This disposal system was individually permitted on or after December 30, 1983; therefore, the
compliance boundary is established at either 250 feet from the effluent disposal area, or 50 feet within
the property boundary, whichever is closest to the effluent disposal area. An exceedance of
groundwater standards at or beyond the compliance boundary is subject to remediation 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. [15A NCAC 02L .0106(d)(2), 02L .0107(b)]
8. In accordance with 15A NCAC 02L .0108, the review boundary is established midway between the
compliance boundary and the effluent disposal area. Any exceedance of groundwater standards at the
review boundary shall require action in accordance with 15A NCAC 02L .0106. [15A NCAC 02L
.0106, 02L .0108]
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9. The Permittee shall apply for a permit modification to establish a new compliance boundary prior to
any sale or transfer of property affecting a compliance boundary. [15A NCAC 02L .0107(c)]
10. In accordance with 15A NCAC 02L .0107(d), no wells, excluding Division approved monitoring wells,
shall be constructed within the compliance boundary except as provided for in 15A NCAC 02L
.0107(g). [15A NCAC 02L .0107]
11. Except as provided for in 15A NCAC 02L .0107(g), the Permittee shall ensure any landowner who is
not the Permittee and owns land within the compliance boundary shall execute and file with the
Currituck County Register of Deeds an easement running with the land containing the following items:
a. A notice of the permit and number or other description as allowed in 15A NCAC 02L .0107(f)(1);
b. Prohibits construction and operation of water supply wells within the compliance boundary; and
c. Reserves the right of the Permittee or the State to enter the property within the compliance boundary
for purposes related to the permit.
The Director may terminate the easement when its purpose has been fulfilled or is no longer needed.
[15A NCAC 02L .0107(f)]
12. The facilities permitted herein shall be constructed according to the following setbacks:
a. The setbacks for low -rate infiltration sites permitted under 15A NCAC 02T .0800 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
[I5A NCAC 02T .0806]
b. The setbacks for storage and treatment units permitted under 15A NCAC 02T .0800 shall be as
follows (all distances in feet):
i. Any habitable residence or place of public assembly under separate ownership:
ii. Any private or public water supply source:
iii. Surface waters:
iv. Any well with exception of monitoring wells:
v. Any property line:
100
100
50
100
50
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[15A NCAC 02T .08061
M. OPERATION AND MAINTENANCE REOUIREMENTS
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,
which at a minimum shall include operational functions, maintenance schedules, safety measures and
a spill response plan. [ 15A NCAC 02T .0707]
2. Upon the Water Pollution Control System Operators Certification Commission's (WPCSOCC)
classification of the subject non -discharge facilities, in accordance with 15A NCAC 08G .0200 the
Permittee shall designate and employ a certified operator in responsible charge (ORC) and one or more
certified operator(s) as back-up ORC(s). The ORC or their back-up shall visit the facilities in
accordance with 15A NCAC 08G .0200, and shall comply with all other conditions specified in the
previously cited rules. [15A NCAC 02T .0117]
3. Only effluent from the Shawboro Elementary School shall be infiltrated on the sites listed in
AttachmemB. [G.S.143-215.1]
4. An automatically activated standby power source capable of powering all essential treatment units 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. [15A NCAC 02H .0404(g)(3)]
5. No automobiles or machinery shall be allowed on the infiltration sites except daring equipment
installation or while maintenance is being performed. [15A NCAC 02T .0108(b)(1)]
6. Public access to the infiltration sites and wastewater treatment facilities shall be prohibited. [15A
NCAC 02T .0805]
7. The residuals generated from the wastewater treatment facilities shall be disposed or utilized in
accordance with 15A NCAC 02T A 100. The Permittee shall maintain a residual management plan
pursuant to 15A NCAC 02T.0708 [15A NCAC 02T .0708, 02T .1100]
8. Diversion or bypassing of untreated or partially treated wastewater from the treatment facilities is
prohibited. [15A NCAC 02T .0805]
9. Freeboard in the low -rate infiltration basin shall not be less than two feet at anytime. [15A NCAC 02T
.0805]
10. A gauge to monitor waste levels in the low -rate infiltration basin shall be provided. This gauge shall
have readily visible permanent markings, at inch or tenth of a foot increments, indicating the following
elevations: 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.
[15A NCAC 02T .0108(b)(1)]
11. A protective vegetative cover shall be established and maintained on all earthen embankments (i.e.,
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 dikes or embankments. Earthen
embankment areas shall be kept mowed or otherwise controlled and accessible. [15A NCAC 02T
.0108(b)(1)]
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IV.
12. The infiltration basin shall be periodically cleaned to remove deposited materials that may impede the
infiltration process. Cleaning records shall be maintained at the facility for a period of no less than five
years, and shall be made available to the Division upon request. The Washington Regional Office,
telephone number [phone], shall be notified prior to each cleaning. [15A NCAC 02T
.0108(b)(1)]
1. Any Division required monitoring (including groundwater, plant tissue, soil and surface water analyses)
necessary to ensure groundwater and surface water protection shall be established, and an acceptable
sampling reporting schedule shall be followed. [15A NCAC 02T .0108(c)]
2. A Division certified laboratory shall conduct all laboratory analyses for the required effluent,
groundwater or surface water parameters. [15A NCAC 02H .0800]
3. 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 the
Permittee's water use is metered. Daily average flow values shall be calculated by dividing the monthly
metered water usage by the number of days in the month. [15A NCAC 02T .0105(k), 02T .0108(c)]
4. The Permittee shall monitor the effluent from the subject facilities at the frequencies and locations for
the parameters specified in Attachment A. [15A NCAC 02T .0108(c)]
5. The Permittee shall maintain adequate records tracking the amount of effluent infiltrated. At a
minimum, these records shall include the following information for each infiltration site listed in
Attachment B:
a. Date of infiltration;
b. Volume of effluent infiltrated;
c. Site infiltrated;
d. Loading rates to each infiltration site listed in Attachment B; and
e. Weather conditions.
[15A NCAC 02T .0108(c)]
6. Freeboard (i.e., waste level to the lowest embankment elevation) in the low -rate infiltration basin shall
be measured to the nearest inch or tenth of a foot, and recorded weekly. Weekly freeboard records shall
be maintained at the facility for a period of no less than five years, and shall be made available to the
Division upon request. [15A NCAC 02T .0108(c)]
Three copies of all monitoring data (as specified in Conditions IV.3. and IVA.) on Form NDMR for
each PPI and three copies of all operation and disposal records (as specified in Conditions IV.S. and
IV.6) on Form NDAR-2 for every site in Attachment B 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:
[15A NCAC 02T .0105(1)]
Division of Water Resources
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
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8. A record shall be maintained of all residuals removed from this facility. This record shall be maintained
at the facility for a period of no less than five years, and shall be made available to the Division upon
request. At a minimum, this record shall include:
a. Name of the residuals hauler;
b. Non -Discharge permit number authorizing the residuals disposal, or a letter from a municipality
agreeing to accept the residuals;
c. Date the residuals were hauled; and
d. Volume of residuals removed.
[15A NCAC 02T .0108(b)(1)]
9. A maintenance log shall be maintained at this facility. This log shall be maintained at the facility for a
period of no less than five years, and shall be made available to the Division upon request. At a
minimum, this log shall include:
a. Date and results of power interruption testing on alternate power supply;
b. Visual observations of the plant and plant site; and
c. Record of preventative maintenance (e.g., changing of equipment, adjustments, testing, inspections
and cleanings, etc.).
[15A NCAC 02T .0108(b)(l)]
10. Monitoring wells and piezometers shall be sampled 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 Fi ug re 2
[15A NCAC 02T .0105(m)]
11. Two copies of the monitoring well and piezometer sampling and analysis results shall be submitted on
a Compliance Monitoring Form (GW-59), along with attached copies of laboratory analyses, on or
before the last working day of the month following the sampling month. The Compliance Monitoring
Form (GW-59) shall include this permit number, the appropriate well identification number, and one
GW-59a certification form shall be submitted with each set of sampling results. All information shall
be submitted to the following address:
Division of Water Resources
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[I5A NCAC 02T .0I05(m)]
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fJ
12. 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. Treatment of wastes abnormal in quantity or characteristic, including the known passage of a
hazardous substance.
b. Any process unit failure (e.g., mechanical, electrical, etc.), due to known or unknown reasons,
rendering the facility incapable of adequate wastewater treatment.
c. Any facility failure resulting in a by-pass directly to receiving surface waters.
d. Any time self -monitoring indicates the facility has gone out of compliance with its permit
limitations.
e. Effluent breakout from the infiltration basin.
Any emergency requiring immediate reporting (e.g., discharges to surface waters, imminent failure of
a storage structure, etc.) outside normal business hours shall be reported to the Division's Emergency
Response personnel at telephone number [phone], [phone], or [phone]. Persons
reporting such occurrences by telephone shall also file a written report in letter form within five days
following first knowledge of the occurrence. This report shall outline the actions taken or proposed to
betaken to ensure the problem does not recur. [15A NCAC 02T .0105(1), 02T .0108(b)(1)]
1. The Permittee shall provide adequate inspection and maintenance to ensure proper operation of the
wastewater treatment and infiltration facilities. [15A NCAC 02T .0108(b)]
2. The Permittee or their designee shall inspect the wastewater treatment and infiltration facilities to
prevent malfunctions, facility deterioration and operator errors resulting in discharges, which may cause
the release of wastes to the environment, a threat to human health or a public nuisance. The Permittee
shall maintain an inspection log that includes, at a minimum, the date and time of inspection,
observations made, and any maintenance, repairs, or corrective actions taken. The Permittee shall
maintain this inspection log for a period of five years from the date of the inspection, and this log shall
be made available to the Division upon request. [15A NCAC 02T .0108(b)]
3. Any duly authorized Division representative may, upon presentation of credentials, enter and inspect
any property, premises or place on or related to the wastewater treatment and infiltration facilities
permitted herein at any reasonable time for the purpose of determining compliance with this permit;
may inspect or copy any records required to be maintained under the terms and conditions of this permit,
and may collect groundwater, surface water or leachate samples. [G.S. 143-21.5.3(a)(2)]
VI. GENERAL CONDITIONS
1. Failure to comply with the conditions and limitations contained herein may subject the Permittee to an
enforcement action by the Division in accordance with North Carolina General Statutes 143-215.6A to
143-215.6C. [G.S. 143-215.6Ato 143-215.6C]
2. This permit shall become voidable if the permitted facilities are not constructed in accordance with the
conditions of this permit, the Division approved plans and specifications, and other supporting
documentation. [15A NCAC 02T .0110]
3. This permit is effective only with respect to the nature and volume of wastes described in the permit
application, Division approved plans and specifications, and other supporting documentation. No
variances to applicable rules governing the construction or operation of the permitted facilities are
granted, unless specifically requested and approved in this permit pursuant to 15A NCAC 02T .0105(n).
[G.S. 143-21.5.1]
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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 jurisdictional government agencies
(e.g., local, state, and federal). 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 General Permit NCGO10000; any requirements pertaining to wetlands under 15A NCAC 02B
.0200 and 02H .0500; and documentation of compliance with Article 21 Part 6 of Chapter 143 of the
General Statutes. [15A NCAC 02T .0105(c)(6)]
In the event the permitted facilities change ownership or the Permittee changes their name, a formal
permit modification request shall be submitted to the Division. This request shall be made on official
Division forms, and shall include appropriate property ownership documentation and other supporting
documentation as necessary. The Permittee of record shall remain fully responsible for maintaining
and operating the facilities permitted herein until a permit is issued to the new owner. [15A NCAC
02T .0104]
6. The Permittee shall retain a set of Division approved plans and specifications for the life of the facilities
permitted herein. [15A NCAC 02T .0108(b)(1)]
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. [15A NCAC 02T
.01050)]
8. This permit is subject to revocation or unilateral modification upon 60 days' notice from the Division
Director, in whole or part for the requirements listed in 15A NCAC 02T .0110. [ 15A NCAC 02T .0110]
9. Unless the Division Director grants a variance, expansion of the permitted facilities contained herein
shall not be granted if the Permittee exemplifies any of the criteria in 15A NCAC 02T .0120(b). [15A
NCAC 02T .0120]
10. The Permittee shall pay the annual fee within 30 days after being billed by the Division. Failure to pay
the annual fee accordingly shall be cause for the Division to revoke this permit. [15A NCAC 02T
.0105(e)(3)]
Permit issued this the 251 day of August 2016
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
S. Jay Zimmerman, P.G., Director CJ
Division of Water Resources
By Authority of the Environmental Management Commission
Permit Number W00031030
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ATTACHMENT A — LIMITATIONS AND MONITORING REQUIREMENTS
PPI 001— W WTF Effluent
Permit Number: W00031030 Version: 2.0
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
MONITORING REQUIREMENTS
PCS
Code
Parameter Description
Units of
Measure
Monthly
Average
Monthly
Geometric Mean
Daily Minimum
Daily Maximum
Measurement
Frequency
Sample
Type
00310
BOD, 5-Day (20 "C)
mg/L
30
4 x Year'
Grab
00940
Chloride (as Cl)
mg/L
3 x Year 2
Grab
50060
Chlorine, Total Residual
mg/L
Weekly
Grab
31616
Coliform, Fecal MF, M-FC Broth, 44.5 °C
#/100 mL
200
4 x Year'
Grab
50050
Flow, in Conduit or thm Treatment Plant
GPD
8,400
Monthly
Calculated
00610
Nitrogen, Ammonia Total (as N)
mg/L
15
4 x Year
Grab
00625
Nitrogen, Kjeldahl, Total (as N)
mg/L
4 x Year
Grab
00620
Nitrogen, Nitrate Total (as N)
mg/L
10
4 x Year
Grab
00600
Nitrogen, Total (as N)
mg/L
4 x Year
Grab
00400
pH
so
Weekly
Grab
00665
Phosphorus, Total (as P)
mg/L
4 x Year '
Grab
70300
Solids, Total Dissolved —180 °C
mg/L
3 x Year 2
Grab
00530
Solids, Total Suspended
mg/L
30
4 x Year'
Grab
1. 4 x Year sampling shall be performed during the months of March, June, September & December.
2. 3 x Year sampling shall be performed during the months of March, July & November.
W00031030 Version 2.0 Attachment A Page 1 of 1

y
x
b
r
z
x

ATTACIMENT B - APPROVED LAND APPLICATION SITES AND LIMITATIONS
Currituck County Board of Education — Shawboro Elementary School
Permit Number: WQ0031030 Version: 2.0
INFILTRATION AREA INFORMATION
APPLICATION LIMITATIONS
Basin
Owner
County
Latitude
Longitude
Net
Dominant
Parameter
Rate
Units
Acreage
Soil Series
IB I
Currituck County Board of
Currituck
36.4376120
-76.0852870
2.01
Roanoke
01284 — Non -Discharge Application Rate
0.096
GPD/f 2
Education
Totals
2.01
W00031030 Version 2.0 Attachment B Page 1 of 1

ATTACHMENT C — GROUNDWATER MONITORING AND LIMITATIONS
Piezometers: PZ-1, PZ-2, PZ-3 & PZ-4
Permit Number: WQ0031030 Version: 2.0
GROUNDWATER CHARACTERISTICS
GROUNDWATER STANDARDS
MONITORING REQUIREMENTS
PCS Code
Parameter Description
Daily Maximum
Frequency Measurement
Sample Type
Footnotes
82546
1 Water level, distance from measuring point
3 x Year
Calculated
L2,3
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
PCS Code
Parameter Description
Daily Maximum
Frequency Measurement
Sample Type
Footnotes
00940
Chloride (as Cl)
250
mg/L
3 x Year
Grab
L 4
31616
Coliform, Fecal MF, M-FC Broth, 44.5 °C
#/100 mL
3 x Year
Grab
1, 4
00610
Nitrogen, Ammonia Total (as N)
1.5
mg/L
3 x Year
Grab
1, 4
00620
Nitrogen, Nitrate Total (as N)
10
mg/L
3 x Year
Grab
L 4
00400
pH
6.5-8.5
so
3 x Year
Grab
L2,4
00665
Phosphorous, Total (as P)
mg/L
3 x Year
Grab
L 4
70300
Solids, Total Dissolved - 180 °C
500
mg/L
3 x Year
Grab
1,4
82546
Water Level, Distance from measuring point
feet
3 x Year
Calculated
1, 2, 3, 4
1. 3 x Year monitoring shall be conducted in March, July & 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.
4. Monitoring wells shall be reported consistent with the nomenclature and location information provided in Figure 2 and this attachment.
W00031030 Version 2.0 Attachment C
Page ] of 1

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CURRITUCK COUNTY BOARD OF EDUCATION
Name: CURRITUCK
Location: 036° Z
LOW -RATE INFILTRATION SYSTEM
Date: 1216t2006
Caption: NORTI-
CURRITUCK COUNTY
Scale: 1 inch equals 2000 feet
Wesley
370 Sh
WQ0031030
SITE LOCATION MAP
cop fight (c) 1%8, Maptach, Inc,

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FIGURE 2
CURRITUCK COUNTY BOARD OF EDUCATION
LOW -RATE INFILTRATION SYSTEM
CURRITUCK COUNTY
WQ0031030
SITE DETAIL MAP