WQ0015052_Permit (Issuance)_20090320

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NCDENR
North Carolina Department of Environment and Natural Resources
LI yk'nn of water Qua ity _ — —
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
William G. Freed, President
Enviro-Tech of North Carolina, Inc.
Post Office Box 69
Harbinger, North Carolina 27941
Dear Mr. Freed:
T/a LI/ wil
March 20, 2009
Pie ; VAT/LOIS
Subject: Permit No. WQ0015052
Village at Ocean Hill
Conjunctive Wastewater
Treatment and Reclaimed Water
Utilization System
Currituck County
In accordance with your permit renewal request received December 18, 2008, we are forwarding
herewith Permit No. WQ0415052, dated March 20, 2009, to Enviro-Tech of North Carolina, Inc. for the
continued operation of the subject wastewater treatment and reclaimed water utilization facilities.
This permit shall be effective from the date of issuance until February 28, 2014, shall void Permit
No. WQ0015052 issued April 16, 2004, 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.
Please note that on September 1, 2006 State Administrative Code 15A NCAC Subchapter 02T —
Waste not Discharged to Surface Water was adopted. This permit incorporates the requirement of these
rules. Remember to take the time to review this permit thoroughly, as some of the conditions
contained therein may have been added, changed, or deleted from those in previously issued permits.
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.
AQUIFER PROTECTION SECTION
1636 Mail Service Center, Raleigh, North Carolina 27699-1636
Location 2728 Capital Boulevard, Raleigh, North Carolina 27604
Phone: [phone] FAX 1: 919-715-0588; FAX 2: 919-715-60481 Customer Service:1-877.623-6748
Internet: www,ncwatemuality.ora
An EQaal Qrportunity } Attirmav a Action Employer
NorthCarohna
Naturally

William G. Freed
March 20, 2009
Page 2 of 2
If you need additional information concerning this matter, please contact David Goodrich at (919)
715-6162 or david.goodrich@,ncmail.net.
Sincerely.
for Coleen H. Sullins
cc: Currituck County Health Department
Washington Regional Office, Aquifer Protection Section
Technical Assistance and Certification Unit
APS Central Files
LAU Files

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RALEIGH
CONJUNCTIVE WASTEWATER TREATMENT AND RECLAIMED WATER UTILIZATION
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
Enviro-Tech of North Carolina, Inc.
Currituck County
FOR THE
continued operations of a 164,000 gallon per day (GPD) wastewater treatment and reclaimed water
utilization facility consisting of:
A 100,000 gallon per day (GPD) wastewater treatment plant consisting of a flow splitter box, a manually
cleaned bar screen, a 30,000 GPD flow equalization tank, a 151 cfm blower, two 69 GPM pumps, two
62,500 gallon coarse bubble aeration basins, two 10,500 gallon clarifiers, one 12,000 gallon aerated
sludge holding tank, two 21 square foot tertiary filters, three 270 cfm blowers, a tablet chlorinator with a
3,190 gallon contact tank, and a 7,440 gallon dosing tank,
and operation of a 64,000 GPD wastewater treatment and reclaimed water utilization system consisting of
one 10,000 gallon flow equalization tank with a 142 cfm blower and two 42 GPM pumps, a flow splitter
box, two 40,000 gallon coarse bubble aeration basins, two 10,700 gallon clarifiers, two 6,000 gallon
aerated sludge holding tanks, three 142 cfm blowers, two 28 square foot tertiary filters, one tablet
chlorinator with a 2,500 gallon contact tank, one 4,000 gallon dosing tank.
Both dosing tanks will feed to the pump station, and the confluent stream resulting from both systems will
be served by a 20,000 square foot conjunctive spray bed, 516,000 square feet of non -conjunctive "green
area", a 3.2 million gallon irrigation pond, and 12.1 acres of non -conjunctive spray field (common area).
to serve the Village at Ocean Hill, with no discharge of wastes to the surface waters, pursuant to the
application received December 18, 2008, and subsequent additional information received by the Division
of Water Quality (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 February 28, 2014, shall void Permit
No. WQ0015052 issued April 16, 2004, and shall be subject to the following specified conditions and
limitations:
WQ0015052 Version 3.0 Shell Version 090204 Page 1 of 7

I.
I1.
SCHEDL'LES (please review the entire pernut for reporting, monitoring, and other on -going activities]
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 that Rule
15A NCAC 02T .0105(d) requires an updated site map to be submitted with the permit renewal
application.
PERFORMANCE STANDARDS
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 due to improper operation and maintenance, or failure of
the utilization 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.
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. Effluent limitations shall not exceed those specified in Attachment A.
4. Application rates, whether hydraulic, nutrient, or other pollutant shall not exceed those specified in
Attachment B.
5. The COMPLIANCE and REVIEW BOUNDARIES for both the reclaimed utilization system waste
disposal area and the high -rate disposal area are established at the property boundary. Any
exceedance of standards at the Compliance or Review Boundary shall require action in accordance
with 15A NCAC 02L .0106.
6. 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.
7. 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).
8. The facilities permitted herein must be constructed according to the following setbacks:
a. The setbacks for reclaimed utilization sites shall be as follows (all distances in feet):
i. Surface waters not classified SA:
ii. Surface waters classified SA:
iii. Any well with exception to monitoring wells
iv. Impounded public water supplies:
v. Public shallow groundwater supply:
b. The setbacks for the rapid infiltration area shall be as follows:
i. Surface waters not classified SA:
ii. Surface waters classified SA:
iii. Any well with exception to monitoring wells
iv. Impounded public water supplies:
WQ0015052 Version 3.0 Shell Version 090204
25
100
100
500
500
200
200
100
100
Page 2 of 7

V. Public shallow groundwater supply: 500
d. 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
9. 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: RECLALMED 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.
1II. OPERATION AND MAINTENANCE REQUIREMENTS
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 .0913 including operational functions, maintenance
schedules, safety measures, and a spill response plan.
Upon classification of the wastewater treatment and reclaimed utilization 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 NTCAC 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.
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3. A suitable year round vegetative cover shall be maintained such that crop health is optimized, allows
for even distribution of effluent, and allows inspection of the reclaimed water utilization system.
4. Adequate measures shall be taken to prevent ponding or runoff from the reclaimed water utilization
areas.
5. Reclaimed water application shall not be performed during inclement weather or when the ground is
in a condition that will cause ponding or runoff.
6. All reclaimed water application equipment must be tested and calibrated at least once per permit
cycle. Records of the calibration must be maintained for five years.
7. No type of wastewater other than that from the residential subdivision shall be applied to the
reclaimed water utilization area.
8. 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.
9. Public access to the reclaimed water utilization 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 showing these activities.
10. 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 .0914.
11. Diversion or bypassing of the untreated wastewater from the treatment facilities is prohibited.
12. All wastewater shall be routed to the high -rate infiltration area should the limit for fecal coliform
(daily maximum concentration of 25 per 100 ml) or turbidity (instantaneous maximum of 10 NTU) be
exceeded, until such time that the problems associated with the treatment capability of the wastewater
treatment plant have been corrected.
IV. MONITORING AND REPORTING REQUIREMENTS
1. 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. All laboratory analyses for effluent, ground waters, or surface waters shall be made by a laboratory
certified by the Division for the required parameters under 15A NCAC 02H .0800.
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3. Flow through the treatment facility shall be continuously monitored and daily flow values shall be
reported on Form NDMR.
The Permittee shall install and maintain an appropriate flow measurement device consistent with
approved engineering and scientific practices to ensure the accuracy and reliability of 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. The Permittee shall keep records of flow measurement
device calibration on file 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, and
c. Percent from true flow.
4. The effluent from the subject facilities shall be monitored by the Permittee at the frequencies and
location for the parameters specified in Attachment A.
5. The Permittee tracking the amount of reclaimed water applied shall maintain adequate records. These
records shall include, but are not necessarily limited to, the following information:
a. Date of reclaimed water application,
b. Volume of reclaimed water applied,
c. Field irrigated,
d. Length of time field is irrigated,
e. Continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings for each field,
f. Continuous monthly and year-to-date loadings for any non -hydraulic parameter specifically
limited in Attachment B for each field,
g. Weather conditions, and
h. Maintenance of cover crops.
6. Monitor wells 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 Figure 2.
Two 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.
Three copies of all monitoring data [as specified in Conditions IV.3. and IVA.] on Form NDMR for
each point prior to irrigation (PPI) and three copies of all operation and disposal records [as specified
in Conditions IV.S. and IV.6.1 on Form NDAR-1 for every utilization area 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
WQ0015052 Version 3.0 Shell Version 090204 Page 5 of 7

9. 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.
10. 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.
11. 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 ponding in the reclaimed utilization area or
runoff from the reclaimed utilization areas.
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 utilization area.
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 be taken to ensure that the problem does not recur.
V. INSPECTIONS
1. Adequate inspection and maintenance shall be provided by the Permittee to ensure proper operation
of the subject facilities.
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.
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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. 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.
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 / or operation of the permitted facilities are granted unless specifically requested and granted in
this permit.
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 forms,
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.
The Permittee must pay the annual fee within 30 days after being billed by the Division. Failure to
pay the fee accordingly may cause the Division to initiate action to revoke this permit pursuant to
15A NCAC 02T .0105(e).
Permit issued this the 20th of March 2009
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
i
f Col H. Sullins, Director
ivision of Water Quality
By Authority of the Environmental Management Commission
Permit Number WQ0015052
WQ0015052 Version 3.0 Shell Version 090204 Page 7 of 7

ATTACHMENT A - LIMITATIONS AND MONITORING REQUIREMENTS Permit Number: WQ0015052
Enviro-Tech of North Carolina, Inc. — Village at Ocean Hill
PPI 001— WWTF Influent
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
164,000
gpd
Continuous
Recorder
PPI 002 — WWTF Effluent
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
MONITORING REQUIREMENTS
Parameter Description - PCS Code
Monthly Average
Weekly Average
Daily Maximum
Measurement
Frequency cy
Sample
ype
BOD, 5-Day (20 Deg. C)-00310
10
mg/l
15
mg/l
2 X month
Composite
Solids, Total Suspended — 00530
5
mg/1
10
mg/l
2 X month
Composite
Nitrogen, Ammonia Total (as N) — 00610
4
mg/1
6
mg/1
2 X month
Composite
Coliform, Fecal MF, M-FC Broth, 44.5C— 31616
14 per 100
ml
25 per 100
Ml
2 X Month
Grab
Turbidity, HCH Twbidimeter— 00076
10
NTU
Continuous
Recording
pH — 00400
6.0 — 9.0
Sul
Daily (5 X week)
Grab
Chlorine, Total Residual — 50060
Daily (5 X week)
Grab
Nitrogen, Nitrate Total (as N) — 00620
2 X month
Composite
Solids, Total Dissolved- 180 Deg.0 — 70300
3 X year
Composite
Chloride (as Cl) — 00940
3 X year
Grab
Carbon, Total Organic (TOC) — 00680
3 X year
Grab
I . Acceptable Range for pff is 6.0 to 9.0 standard units.
WQ0015052 Version 3.0 Attachment A Page 1 of I

ATTACHMENT B - APPROVED LAND APPLICATION SITES AND LIMITATIONS Permit Number: WQ0015052 Version: 3.0
Enviro-Tech of North Carolina, Inc. — Village at Ocean Hill
UTILIZATION AREA INFORMATION
APPLICATION LIMITATIONS
Field/ Basin
Owner
County
Latitude
Longitude
Net Acreage
Dominant
Soil Series
Parameter
Rate
Yearly
Max
Units
Tract 1, Zone A
Rapid Infilt. Area
Corolla North Utility Village
Currituck
36°23'07"
75°50'06"
0.46
Os — Osier Fine Sand
Flow
4*
gal / sq. ft / day
Tract 2, Zone A
Reuse Spray Area
Enviro-Tech
Currituck
36°23' 10"
75050'06"
12.1
Os — Osier Fine Sand
Flow
3
inches / week
Total
12.56
* A maximum rate of 8.2 gallons per square foot per day is allowed for any 20 consecutive days.
Note: The Tract 1, Zone A Rapid Infiltration Area is Conjunctive. The Tract 2, Zone A Reuse Spray Area is Non -Conjunctive.
WQ0015052 Version 3.0 Attachment A Page I of I

ATTACHMENT C — GROUNDWATER MONITORING AND LIMITATIONS
Monitoring wells: MW-9 & MW-10
Permit Number: WQ0015052 Vet
GROUNDWATER CHARACTERISTICS
GROUNDWATER STANDARDS
MONITORING REQUIREMENTS
Parameter Description - Parameter Code
Daily Maximum
Frequency Measurement
Sample Type
Footnotes
Nitrogen, Nitrate Total (as N) — 00620
10
Mg/l
3 X year
Grab
1,7
Coliform, Fecal MF, M-FC Broth,44.5C — 31616
1 per 100
ml
3 X year
Grab
1,7
pH — 00400
6.5 — 8.5 (range)
Su
3 X year
Grab
1,7
Chloride (as CI) — 00940
250
Mg/)
3 X year
Grab
1,7
Solids, Total Dissolved- 180 Deg.0 — 70300
500
Mg/l
3 X year
Grab
1,7
Water level, distance from measuring point — 82546
3 X year
Grab
1, 2, 3, 7
Nitrogen, Total Ammonia (as N) — 00610
Carbon, Total Organic (TOC) — 00680
3 X year
3 X year
Grab
Grab
1,7 f
1, 6, 7 {I
Volatile Compounds, (GC/MS) — 78732
Annual
Grab
1, 4, 5, 7
L 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.
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:
a. A laboratory must be DWQ certified to run any method used.
b. The method used must, at a minimum, include all the constituents listed in Table VIII of Standard Method 6230D.
c. 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/i_ 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/I 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 TUC concentration as measured in the background monitor well exceeds 10 mg/I, 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 2 and this attachment.
WQOO15052 Version 3.0 Attachment C Page I of 1

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FIGURE 1
_ ENVIRG-TECH OF NORTH CAROLINA, INC.
Wand
VILLAGE AT OCEAN HILL
m Northeast WASTEWATER TREATMENT SYSTEM
e` Pond, CURRITUCK COUNTY
o r (( WQ0015052
0 Brant Island a n �
SITE LOCATION MAP
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W-140
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-45
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FIGURE 2
ENVIRO-TECH OF NORTH CAROLINA, INC.
VILLAGE AT OCEAN HILL
WASTEWATER TREATMENT SYSTEM
CURRITUCK COUNTY
HQO015052
SITE DETAIL MAP