WQ0023634_Final Permit_20120724

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles Wakild, P.E.
Governor Director
July 24, 2012
DANIEL F. SCANLON, H — COUNTY MANAGER
COUNTY OF CURRITUCK
153 COURTHOUSE ROAD — SUITE 204
CURRITUCK, NORTH CAROLINA 27929
Dear Mr. Scanlon:
Dee Freeman
Secretary
Subject: Permit No. WQ0023634
Waterside Villages W WTP
High -Rate Infiltration System
Currituck County
In accordance with your permit change of ownership request received July 5, 2012, we are
forwarding herewith Permit No. WQ0023634 dated July 24, 2012, to the County of Currituck for the
continued operation of the subject wastewater treatment and high -rate infiltration facilities.
Please note the Permittee has been changed from Waterside Villages, LLC to the County of
Currituck. In addition, the permit type has been changed from Surface Irrigation to High -Rate
Infiltration. This change was done solely to reflect the existing facility type under the current 15A NCAC
02T rules. Please note that all setbacks, etc. remain as they were when this facility was originally
permitted under 15A NCAC 02H .0200.
Please note that on August 5, 2009, Session Law 2009-406, entitled "An Act to Extend Certain
Government Approvals Affecting the Development of Real Property Within the State," was enacted by
the General Assembly and signed into law. The Act, known as the Permit Extension Act of 2009, extends
the expiration date of certain government approvals and permits. In addition, Session Law 2010-177
extended the Act by another year. Permit No. WQ0023634 falls within the scope of this Act and is
therefore being extended until February 28, 2018. A renewal application must still be submitted six
months in advance of the extended expiration date.
This permit shall be effective from the elate of issuance until February 28, 2018, shall void Permit
No. WQ0023634 issued March 31, 2009, 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.
For your convenience, customized electronic copies of your facility's NDMR and NDAR-2
reporting forms are available for download at: hitpWportal.ricdennor web/w /a s/lati/re ortin .
AQUIFER PROTECTION SECTION
1636 Mail Service Center, Raleigh, North Carolina 27699-1636
Location: 512 N, Salisbury St, Raleigh, North Carolina 27604
Phone: 91M07-64641 FAX: 919-W-6496
Internet Www.naua(ernualitv.om
An Equal Opportunity 1 Afrirmalive Action Employer
One
NorthCarolina
NaNwily

Mr. Daniel F. Scanlon, 11
July 24, 2012
Page 2 of 4
Please note the following permit conditions have been removed since the last permit
issuance:
➢ Old Condition I.1. -- This condition was removed because monitoring wells MW-10, MW-11,
MW-12, MW-13 and MW-14 have been installed.
➢ Old Condition I.2. — This condition was removed because a scaled site map has been
submitted,
➢ Old Condition 1.3. — This condition was removed because monitoring wells MW-1, MW-2,
MW-3 and MWA have been temporarily abandoned.
➢ Old Condition 1.4. — This condition was removed because monitoring wells MW-5, MW-6,
MW-7, MW-8 and MW-9, and piezometers P-1 and P-2 have been permanently abandoned.
➢ Old Condition 1.6. — This condition has been removed because the new Permittee (County of
Currituck) is not considered an Interim Treatment and Disposal Facility, therefore is not
subject to 15A NCAC 02H .0404(g).
➢ Old Condition 11.10. -- Please note that several setbacks from the previous permit issuance
were removed because they were not applicable when the permit was originally issued and
modified under 15A NCAC 02H .0200.
➢ Old Condition It.11. — This condition has been removed because the new Permittee (County
of Currituck) is not considered an Interim Treatment and Disposal Facility, therefore is not
subject to 15A NCAC 02H .0404(g).
➢ Old Condition III.5. — This condition has been removed because the facility does not have the
ability to prevent high -rate spray infiltration during inclement weather or when the ground is
in a condition that will cause ponding or runoff (i.e., the facility does not have storage).
➢ Old Condition IV.9. — This condition was removed because monitoring wells MW-10, MW-
11, MW-12, MW-13 and MW-14 have been installed.
Please note the following permit conditions are new since the last permit issuance:
➢ Condition It. 10. — This condition requires the Perinittee to modify their permit prior to the
sale of any land that may affect the existing compliance boundary.
➢ Condition VIX — This condition notes that this permit is subject to revocation or unilateral
modification within 60 days notice from the Division if the terms in 15A NCAC 02T .0110
are violated.
➢ Condition VI.9. — This condition notes that this facilities in this permit may not be expanded
if the Permittee exemplifies any of the criteria in 15A NCAC 02T .0120(b).

Mr. Daniel F. Scanlon, II
fuly 24, 2012
Page 3 of 4
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 Nathaniel Thornburg at
[phone] or nathaniel.thornburgcdr ncdenr. ov.
Sincerely,
CAlar,sakild, P.E.
cc: Currituck County Health Department
Washington Regional Office, Aquifer Protection Section
Permit File WQ0023634
Notebook File WQ0023634i

Mr. Daniel F. Scanlon, lI
July 24, 2012
Page 4 of 4
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I.
NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RALEIGH
HIGH -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
County of Currituck
Currituck County
FOR THE
continued operation of a 120,000 gallon per day (GPD) wastewater treatment and high -rate spray
infiltration facility consisting of:
a flow splitter box; a manually cleaned bar screen; four flow equalization tanks totaling 40,000 gallons
with two 83.3 gallon per minute (GPM) pumps; 10 coarse bubble aeration basins totaling 93,125 gallons;
six 4,162 gallon clarifiers; three 10,000 gallon aerated sludge holding tanks; three 108 square foot (ft)
fixed media filters; ultraviolet (UV) disinfection; an 8,000 gallon dosing tank with two 210 GPM pumps;
an 85,502 ft2 high -rate infiltration spray bed surrounded by a 6 inch berth; a 50 kilowatt (kW) diesel
standby generator with automatic transfer switch; a groundwater lowering drain surrounding all sides of
the application area and discharging to Currituck Sound; and all valves, piping and appurtenances
to serve the Waterside Villages WWTP, with no discharge of wastes to surface waters, pursuant to the
application received July 5, 2012, and in conformity with the project plans, 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, 2018, shall void Permit No.
WQ0023634 issued March 13, 2009, and shall be subject to the following specified conditions and
Iimitations:
SCHEDULES
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.
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H. PERFORMANCE STANDARDS
I. 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 high -rate spray 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 disposal facilities.
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.
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.
4. Effluent quality shall not exceed the limitations specified in Attachment A.
5. Application rates, whether hydraulic, nutrient or other pollutant, shall not exceed those specified in
Attachment B.
The compliance boundary for the disposal system shall be specified in accordance with 15A NCAC
02L .0107(b). 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.
7. 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.
8. The Permittee shall apply for a permit modification to establish a new compliance boundary prior to
any sale or transfer of properly affecting a compliance boundary.
9, 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).
10. 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.
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11. The facilities permitted herein shall be constructed according to the following setbacks:
a. The setbacks for high -rate spray infiltration sites permitted under 15A NCAC 02H .0200 shall be
. as follows (all distances in feet):
i. Any habitable residence or place of public assembly under separate ownership: 1001
ii. Drainage ways and surface waters: 50'
iii. Any well with exception of monitoring wells: 100
iv. Any property line: 50
v. Public right of way: 50
' Except where an easement has been provided for the tennis court at the southeast corner
of the site.
2 Except for the groundwater lowering device approximately 40 feet from the site,
b. The setbacks for storage and treatment units permitted under 15A NCAC 02H .0200 shall be as
follows (all distances in feet):
i. Any well with exception of monitoring wells: 100
ii. Any property line: 50
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 .0707, which at a minimum shall include operational
functions, maintenance schedules, safety measures and a spill response plan.
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 080 .0200, and shall comply with all other conditions specified in the
previously cited rules.
3. A suitable year round vegetative cover shall be maintained at all tinges, such that crop health is
optimized., allows for even distribution of effluent and allows inspection of the high -rate spray
infiltration system.
4. Adequate measures shall be taken to prevent effluent ponding in or runoff from the high -rate spray
infiltration sites listed in Attachment B. At a minimum, a six inch berm shall be maintained around
the high -rate spray infiltration site, and located outside the wetted area and as close as possible to the
perimeter fence.
5. All high -rate spray infiltration equipment shall be tested and calibrated at least once per permit cycle.
Calibration 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.
6. Only effluent from Waterside Villages WWTP shall be high -rate spray inf ltrated on the sites listed in
Attachment B.
7. 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.
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8. No automobiles or machinery shall be allowed on the high -rate spray infiltration sites except during
equipment installation or while maintenance is being performed.
Public access to the high -rate spray infiltration sites and wastewater treatment facilities shall be
prohibited.
10. The residuals generated from the wastewater treatment facilities shall be disposed or utilized in
accordance with 15A NCAC 02T .1100. The Permittee shall maintain a residual management plan
pursuant to 15A NCAC 02T .0708,
11. Diversion or bypassing of untreated or partially treated wastewater from the treatment facilities is
prohibited,
IV. MONITORING AND REPORTING REQUIREMENTS
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.
2. Per 15A NCAC 02H .0800, a Division certified laboratory shall conduct all laboratory analyses for
the required effluent, groundwater or surface water parameters.
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 to ensure the
accuracy and reliability of flow measurement consistent with accepted engineering and scientific
practices. Selected flow measurement devices shall be capable of measuring flows with a maximum
deviation of less than ten percent from true flow; accurately calibrated at a minimum of once per year;
and maintained to ensure the accuracy of measurements is consistent with the selected device's
accepted capability. The Permittee shall maintain records of flow measurement device calibration on
file for a period of at least five years. At a minimum, documentation shall include:
a. Date of flow measurement device calibration,
b. Name of person performing calibration, and
c. Percent from true flow.
4. The Permittee shall monitor the effluent from the subject facilities, the under -drain system and the
groundwater lowering system at the frequencies and locations for the parameters specified in
Attachment A.
5. The Permittee shall maintain adequate records tracking the amount of effluent spray infiltrated. At a
minimum, these records shall include the following information for each high -rate spray infiltration
site listed in Attachment B:
a. Date of spray infiltration;
b. Volume of effluent spray infiltrated;
c. Site spray infiltrated;
d. Length of time site is spray infiltrated;
e. Loading rates to each infiltration site listed in Attachment B;
£ Weather conditions; and
g. Maintenance of cover crops.
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6. 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 Condition. IV,5.) 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:
Division of Water Quality
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
7. 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.
S. 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, Date of calibration of flow measurement device;
c. Visual observations of the plant and plant site; and
d. Record of preventative maintenance (e.g., changing of equipment, adjustments, testing,
inspections and cleanings, etc.).
9. Monitoring wells shall be sampled after construction and within 3 months prior to initiating non -
discharge disposal operations. Monitoring wells shall be sampled thereafter at the frequencies and for
the parameters specified in Attachment C. All mapping, well construction forms, well abandonment
forms and monitorina, data shall refer to the permit number and the well nomenclature as provided in
Attachment C and Figure 1.
10. Two copies of the monitoring well 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 Quality
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
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11. An annual representative soils analysis (i.e,, Standard Soil Fertility Analysis) shall be conducted on
each high -rate spray infiltration site listed in Attachment B. These results 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, the Standard Soil Fertility Analysis shall include the following parameters:
Acidity
Exchangeable ,Sodium Percentage
Phosphorus
Base Saturation (by calculation)
Magnesium
Potassium
Calcium
Manganese
Sodium
Cation Exchange Capacity
Percent Humic Matter
Zinc
Copper
pH
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. Any occurrence at the facility resulting in the treatment of significant amounts of wastes that is
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 sell -monitoring indicates the facility has gone out of compliance with its permit
limitations.
e. Ponding in or runoff from the high -rate spray infiltration sites.
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 be taken to ensure the problem does not recur.
V. INSPECTIONS
1. The Permittee shall provide adequate inspection and maintenance to ensure proper operation of the
wastewater treatment and high -rate spray infiltration facilities.
The Permittee or their designee shall inspect the wastewater treatment and bigh-rate spray 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.
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 high -rate spray
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.
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VI. GENERAL CONDITIONS
1. Failure to comply with the conditions and Iimitations 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.
2. This permit shall become voidable if the pennitted facilities are not constructed in accordance with
the conditions of this permit, the Division approved plans and specifications, and other supporting
documentation.
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).
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., Iocal, 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 the Division's General Permit NCG010000; any requirements pertaining to wetlands under
15A NCAC 02B .0200 and 021-1 .0500; and documentation of compliance with Article 21 Part 6 of
Chapter 143 of the General Statutes.
5. 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.
6. The Permittee shall retain a set of Division approved plans and specifications for the life of the
facilities permitted herein.
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 pursuant to 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.
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).
10. The Permittee shall pay the annual fee within 3 0 days after being billed by the Division. Failure to
pay the annual fee accordingly shall be cause for the Division to revoke this permit pursuant to 15A
NCAC 02T .0105(e)(3).
Permit issued this the 20' day of July 2012
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
�.- aules akild, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number WQ0023634
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ATTACHMENT A - LINHTATIONS AND MONITORING REQUIREMENTS
PPI 001— WWTP Effluent
Permit Number: WQ0023634 Version: 2.2
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
SOD, 5-Day (20 °C)
mg/L
I0
i
2 x Month
Composite
00940
Chloride (as Cl)
mg/L
I
3 x Year
Composite
31616
Coliform, Fecal MF, M-FC Broth, 44.5 °C
9/100 mL
14 43
2 x Month Z
Continuous I
Grab
Recorder
50050
Flow, in conduit or thru treatment plant
GPD
120,000
_ -
00610
Nitrogen, Ammonia Total (as N)
mg/L
4
i !
2 x Month
Composite
00620
Nitrogen, Nitrate Total (as N)
mg/L
2 x Month
Composite
00600
Nitrogen, Total (as N)
mg/L
10
2 x Month
Composite
00400
pH
su
6 9
j
5 x Week
Grab
70300
Solids, Total Dissolved ] 80 °C
mg/L
3 x Year
Composite
00530
Solids, Total Suspended
mg/L
20
2 x Month
Composite
1. 3 x Year monitoring shall be conducted in May, August and December.
2, Monthly average for Fecal Coliform shall a geometric mean.
WQ0023634 Version 2.2 Attachment A Page 1 of 2

PPY 002 — Groundwater Lowering System Effluent
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
31616
Coliform, Fecal MF, M-FC Broth, 44.5 °C
#/100 mL
Monthly'
Grab
01045
Iron, Total (as Fe)
mg/L
---- -
-- - - Y m
3 x Year 2
Grab
01055
Manganese, Total (as Mn)
mg/L
3 x Year 2
Grab
00610
Nitrogen, Ammonia Total (as N)
mg/L
3 x Year 2
Grab
00620
Nitrogen, Nitrate Total (as N)
mg/L
3 x Year 2
Grab
00600
Nitrogen, Total (as N)
mg1L
Monthly
Grab
00400
pH
su
Monthly
Grab
00665
Phosphorus, Total (as P)
mg/L
t
3 x Year 2
Grab
Monthly average for Fecal Coliform shall a geometric mean.
3 x Year monitoring shall be conducted in May, August and December.
WQ0023634 Version 2.2 Attachment A Page 2 of 2

ATTACHMENT S - APPROVED LAND APPLICATION SITES AND LEMTATIONS
County of Currituck— Waterside Villages WWTP
Permit Number: WQ0023634 Version: 2.2
INFILTRATION AREA INFORMATION
APPLICATION LIMITATIONS
Field
Owner
County
Latitude
Longitude
Net
Acreage
Dominant
Soil Series
Parameter
Rate
Units
I
County of Currituck
Currituck
36.2313890
-75.8708330
0.22
Conetoe
01284 —Non-Discharge Application Rate
I.40
GPD/fe
Totals
0.22
WQ0023634 Version 2.2 Attachment B Page I of 2

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WQ0023634 Version 2.2 Attachment B Page 2 of 2

ATTACHMENT C — GROUNDWATER MONITORLNG AND LIMITATIONS Permit Number: WQ0023634 Version: 2.2
Monitoring wells: MW-10, MW-11, MW-12, MW-13 and MW-14
GROUNDWATER CHARACTERISTICS
GROUNDWATER STANDARDS
MONITORING REQUIREMENTS
PCS Code
Parameter Description
Daily Maximum
Frequency Measurement
Sample Type
Footnotes
00680
Carbon, Total Organic (TOC)
mg/L
3 x Year
Grab
1,6
00940
Chloride (as Cl)
250
mg/L
3 x Year
Grab
1
31616
Coliform, Fecal MF, M-FC Broth, 44.5 °C
#/100 mL
3 x Year
Grab
1
00610
Nitrogen, Ammonia Total (as N)
1.5
mg/L
3 x Year
Grab
1
00620
Nitrogen, Nitrate Total (as N)
10
mg/L
3 x Year
Grab
1
00400
pH
6.5-8.5
su
3 x Year
Grab
1,2
00665
Phosphorus, Total (as P)
mg/L
3 x Year
Grab
1
70300
Solids, Total Dissolved -180 °C
500
mg/L
3 x Year
Grab
1
78732
Volatile Compounds (GC/MS)
Present: Yes/No
Annually
Grab
1, 4, 5
82546
Water Level — Distance from measuring point
fi
3 x Year
Calculated
1, 2, 3
1. 3 x Year monitoring shall be conducted in May, August and December; Annual monitoring shall be conducted every December.
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 December only, analyze by one of the following methods:
a. Standard Method 6230D, PQL at 0.5 µg/L or less
b, Standard Method 621 OD, PQL at 0.5 Iig/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/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.
WQ0023634 Version 2.2 Attachment C Page I of 1

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