WQ0035706_Final Permit_20200408

ROY COOPER
Governor
MICHA£L S. REGAN
Secretary
S. DANI£L SMITH
Director
BEN STIKELEATHER — COUNTY MANAGER
CURRITUCK COUNTY
153 COURTHOUSE ROAD — SUITE 204
CURRITUCK, NORTH CAROLINA 27929
Dear Mr. Stikeleather:
NORTH CAROLINA
Environmental Quality
April 8, 2020
Subject: Permit No. WQ0035706
Moyock Regional WWTP
High -Rate Infiltration System
Currituck County
In accordance with your permit major modification request received October 21, 2019, and
subsequent additional information received February 10, 2020, we are forwarding herewith Permit No.
WQ0035706 dated April 8, 2020, to Currituck County for the continued operation of the existing
wastewater treatment and high -rate infiltration facilities, as well as the construction and operation of the
proposed wastewater treatment and high -rate infiltration facilities.
The following modifications to the subject permit are as follows: a 200,000 gallon per day (GPD)
expansion to the existing 99,000 GPD wastewater treatment and high -rate infiltration facilities including a
new 200,000 GPD WWTP with a biological treatment unit (BTU) and a membrane bioreactor (MBR), and
three new high -rate infiltration basins.
This permit shall be effective from the date of issuance through October 31, 2022, shall void Permit
No. WQ0035706 issued November 27, 2017, and shall be subject to the conditions and limitations therein.
The Permittee shall submit a renewal application no later than May 4, 2022.
Please pay attention to the monitoring requirements listed 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.
The Division has removed the following permit condition since the last permit issuance dated
November 27, 2017:
➢ Old Condition VI.2. — This permit is not voidable.
The following permit conditions are new since the last permit issuance dated November 27,
2017:
➢ Condition I.I. —Requires the Permittee to submit an Engineering Certification upon completion
and prior to operation of the permitted modifications.
➢ Condition L2. — Requires the Permittee to notify the Washington Regional Office at least two
days in advance of initial operation of the permitted modifications.
North Carolina Department of Environmental Quality I Division of Water Resources
'631 512 North Salisbury Street 1 1617 Mail Service Center I Raleigh, North Carolina 27699-1617
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Mr. Ben Stikeleather
April 8, 2020
Page 2 of 3
➢ Condition L3. — Requires the Washington Regional Office to approve all new monitoring wells
prior to installation.
➢ Condition 1.4. — Requires a site map to be submitted within 90 days of installing the new
monitoring wells.
➢ Condition 1.5. - Requires a well construction record (GW-1) to be submitted within 30 days of
construction of each new monitoring well.
➢ Condition 1.6. — Requires a final operation and maintenance plan to be submitted before initial
operation of the modified facilities.
➢ Condition 1.7. — Requires a final soils evaluation to be performed by a licensed soil scientist,
geologist, or hydrogeologist and a report submitted to the Division certifying the fill material
is capable to receiving the specified application rates.
➢ Condition 11.11. — The setbacks in this condition have been updated to reflect the times each
component of this system was permitted.
➢ Condition 111.11. — Requires freeboard in the three high -rate infiltration basins and the
groundwater stilling basin to be two feet or more.
➢ Condition IIL 12. — Requires gauges to monitor waste levels in the high -rate infiltration basins
and the groundwater stilling basin to be provided.
➢ Condition 111.14. — Requires metering equipment to be tested and calibrated annually.
➢ Condition 111.16. — Requires the infiltration areas to be cleaned at least once per permit cycle
to remove deposited materials that may impede the infiltration process.
➢ Condition IV.6. — Requires freeboard (i.e., waste level to the lowest embankment elevation) in
the three high -rate infiltration basins and the groundwater stilling basin to be measured to the
nearest inch or tenth of a foot, and recorded weekly.
➢ Condition IV.8. — Requires the Permittee to provide to its users and the Division of Water
Resources an annual report.
➢ Condition IV.l0.b. — Requires the date of infiltration equipment calibration to be recorded in
the maintenance log.
➢ Condition IV.11. — Requires monitoring wells MW-4, MW-5, MW-6, MW-7, MW-8, and MW-
9 to be sampled after construction and within three months prior to initiating high -rate
infiltration operations.
➢ Condition IV.13. — Requires the Permittee to submit a Compliance Monitoring Form (GW-59)
and a Well Construction Record Form (GW-1) listing this permit number and the appropriate
monitoring well identification number for initial sampling of monitoring wells MW-4, MW-5,
MW-6, MW-7, MW-8, and MW-9.
➢ Condition V1.10. — States this permit shall not be renewed if the Permittee or any affiliation
has not paid the required annual fee.

Mr. Ben Stikeleather
April 8, 2020
Page 3 of 3
➢ Attachment A — PPI 002 has been added for effluent monitoring post -expansion.
➢ Attachment B — Infiltration basins 1, 2, and Repair have bene added.
➢ Attachment C — Monitoring wells MW-4, MW-5, MW-6, MW-7, MW-8, and MW-9 have been
added, as well as monitoring requirements for Volatile Organic Compounds (VOC's).
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. Otherwise, this permit shall be final and binding.
One set of approved plans and specifications is being forwarded to you. If you need additional
information concerning this permit, please contact Ashley Kabat at [phone] ox
ashley.kabatnncdenr. gov.
Sincerely,
S. Daniel Smith, Director
Division of Water Resources
cc: Currituck County Health Department (Electronic Copy)
Washington Regional Office, Water Quality Regional Operations Section (Electronic Copy)
Joseph Anlauf, PE — Anlauf Engineering, PLLC (Electronic Copy)
Beth Buffington — Protection and Enforcement Branch (Electronic Copy)
Laserfiche File (Electronic Copy)
Digital Permit Archive (Electronic Copy)
Central Files

THIS PAGE BLANK

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENTAL QUALITY
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
Currituck County
Currituck County
FOR THE
operation of a 299,000 gallon per day (GPD) wastewater treatment and high -rate infiltration facility
consisting of the:
construction and operation of a 299,000 GPD wastewater influent headworks and screen plant consisting
of an influent flow meter vault containing a 5,971 gallon per minute (GPM) influent flowmeter and a 10
GPM sump pump; a stainless steel influent mechanical bar screen; two stainless steel influent drum screens
with 2 millimeter (mm) openings (one online and one standby); and all associated piping, valves, controls,
and appurtenances; the
construction and operation of a 200,000 GPD treatment and high -rate infiltration facility consisting of a
200,000 GPD biological treatment unit (BTU) consisting of two 100,000 GPD treatment trains consisting
of a shared 76,242 gallon equalization tank with dual (one online and one standby) 295 GPM equalization
transfer pumps that convey wastewater to the original 99,000 GPD wastewater treatment plant (WWTP),
dual (one online and one standby) 210 GPM equalization transfer pumps that convey wastewater to the
flow splitter box, two 2.7 horsepower (hp) submersible mixers, a dissolved oxygen (DO) controller/sensor,
and a flow splitter box splitting flow between train 1 and train 2; two 8,966 gallon anaerobic tanks (train 1
and train 2) each with a 1.75-hp submersible mixer; two 32,875 gallon pre -anoxic tanks (train 1 and train
2) each with a 2.7-hp submersible mixer; two 69,734 gallon aeration tanks (train 1 and train 2) each with
dual 210 GPM internal recycle pumps (one online and one standby) and a total of three 400 cubic feet per
minute (CFM) blowers (two online and one standby); two 26,897 gallon post -anoxic tanks (train 1 and train
2) each with a 2.7-hp mixer and served by three carbon -source metering pumps (two online and one
standby); one shared 123,921 gallon digester receiving waste activated sludge (WAS) from the RAS/WAS
pump station containing three (two online and one standby) 280 GPM RAS/WAS sub pumps containing a
100 GPM skimmer pump that conveys supernatant to the equalization tank and three (two online and one
standby) 500 CFM digester blowers; a 200,000 GPD membrane bioreactor (MBR) system containing two
sets of MBR filter cartridges and dual (one online and one standby) 500 CFM air -scour blowers; a dual 348
GPM ultraviolet disinfection systems; a 25,987 gallon precast pump tank containing four 210 GPM
submersible centrifugal dosing pumps (dual pumps for Basin 1 and Basin 2); two disposal pump valve
vaults containing gate valves and check valves; three 3,358 GPM flowmeter vaults (one for flow to the
original 99,000 GPD WWTP, one for effluent flow to Bain 1 and one for effluent flow to Basin 2), a valve
vault to divert flow from Basin 2 to the Repair basin, a valve vault to divert flow from Basin 1 to the Repair
basin; a check valve vault for the junction of repair basin forcemains; three (Basin 1, Basin 2, and Repair)
WQ0035706 Version 2.1 Shell Version 200201 Page 1 of 14

0.51 acre high -rate infiltration basins; a 485,457 GPD mechanically -lowered groundwater lowering system
surrounding each basin utilizing three 225 GPM groundwater lowing pumps; a 3,358 GPM groundwater
discharge flowmeter; a groundwater discharge stilling basin that gravity -overflows into the southern
wetlands; and all associated piping, valves, controls, and appurtenances; the
continued operation of a 99,000 GPD wastewater treatment and high -rate infiltration facility consisting of
a mechanically -cleaned bar screen with 5 mm fine -slit spacings; two mechanically -cleaned bar screens with
3/16-inch spacings; two 12,776 gallon interconnected flow equalization tanks each with a 2 hp submersible
mixer and two 50 GPM submersible pumps; an alkalinity -feed system with a 100 gallon talk and two 1
gallon per hour (GPH) chemical metering pumps serving the two equalization basins; two 7,046 gallon pre -
anoxic basins each with a'/2-hp submersible mixer; a carbon feed system with two 55 gallon drums and two
1 GPH chemical metering pumps serving the two pre -anoxic basins; four 7,340 gallon aeration basins; two
4,194 gallon post -anoxic basins each with a'/2-hp submersible mixer and both post -anoxic basins located
concentrically within two 2,309 recycle basins; a carbon -feed system with two 55 gallon drums and two 1
GPH chemical metering pumps serving the two post -anoxic basins; two 4,650 gallon re-
aeration/coagulation basins; an alum -feed system with a 100 gallon tank and two 1 GPH chemical metering
pumps serving the two re-aeration/coagulation basins; two 11,736 gallon clarifiers with three 60 GPM
recycled activated sludge (RAS) and WAS pumps in a dry pit configuration; four RAS dry pit recycle intake
flowmeters; a 10,000 gallon media filter dosing tank with two 212 GPM submersible pumps five 200,000
GPD rated tertiary media filters; an ultraviolet (UV) disinfection system with two parallel banks each
containing two lamps per bank; a post -UV disinfection flowmeter; an 18,000 gallon dosing tank; four
15,260 gallon aerobic digesters with two 25 GPM portable submersible decant pumps; two 285 CFM
blowers serving the aeration basins, re -aeration basins, clarifiers, and aerobic digesters; a 250 kilowatt (kW)
automatically -activated standby generator; two brass -spigot effluent monitoring stations served by a
portable composite -sampler; two effluent flowmeters each serving a high -rate infiltration basin; two 0.287
acre high -rate infiltration wet/dry basins each containing 22 low -profile irrigation heads rated at 1.73 GPM;
a gravity -fed groundwater lowering drainage system; and all associated piping, valves, controls, and
appurtenances
to serve the Moyock Regional WWTP, with no discharge of wastes to surface waters, pursuant to the
application received October 21, 2019, subsequent additional information received February 10, 2020, and
in conformity with the Division -approved plans and specifications considered a part of this permit.
This permit shall be effective from the date of issuance through October 31, 2022, shall void Permit No.
WQ0035706 issued November 27, 2017, and shall be subject to the following conditions and limitations:
I. SCHEDULES
Upon completion of construction and prior to operation of the permitted modifications, the Permittee
shall submit an engineering certification from a North Carolina licensed Professional Engineer
certifying that the permitted facility has been constructed in accordance with G.S. 143-215.1,
Administrative Code Title 15A Subchapter 02T, this permit, and the Division -approved plans and
specifications. For phased and partially certified facilities, the Permittee shall retain the responsibility
to track further construction approved under this permit, and shall provide a final engineering
certification upon project completion. Mail the Engineering Certification to the Division of Water
Resources, Non -Discharge Branch, 1617 Mail Service Center, Raleigh, NC 27699-1617, or Non-
Discharge.Reports&ncdenr.gov. [15A NCAC 02T .0116(a)]
2. The Permittee shall notify the Washington Regional Office, telephone number [phone], at least
two business days in advance of initial operation of the constructed facilities so that the Division can
conduct a startup inspection. [15A NCAC 02T .0108(b)(1)(B)]
WQ0035706 Version 2.1 Shell Version 200201 Page 2 of 14

The Washington Regional Office, telephone number [phone], shall approve monitoring wells
MW-4, MW-5, MW-6, MW-7, MW-8, and MW-9 prior to installation, and the monitoring wells shall
be installed prior to beginning waste disposal operations on the newly constructed high -rate infiltration
sites. The Washington Regional Office shall be notified at least two business days in advance of
construction of any monitoring well. The monitoring wells shall be constructed such that the water
level in the well is never above or below the screened portion of the well, and in accordance with 15A
NCAC 02C .0108. The general location and Division -approved name for each monitoring well is on
Figure 1. [15A NCAC 02C .0108, 02T .0108(b)(1)(B)]
4. Within 90 days of completing installation of monitoring wells MW-4, MW-5, MW-6, MW-7, MW-8,
and MW-9, the Permittee shall submit two original copies and one digital copy of a site map with a
scale no greater than 1-inch equals 100 feet; however, special provisions may be granted upon prior
approval for large properties. The map shall include the following information:
a. Legend, north arrow, scale, and legible in black and white.
b. Topographic contour intervals not exceeding 10 feet or 25 percent of total site relief.
c. All habitable residences or places of assembly within 500 feet of the infiltration area.
d. Location of all wells, streams (ephemeral, intermittent, and perennial), springs, lakes, ponds,
ditches, and other surface drainage features within 500 feet of the infiltration area.
e. Location and identification of each monitoring well (identify any background/upgradient wells).
f. Latitude and longitude coordinates of each monitoring wells (decimal degrees to the sixth decimal
degree and in NAD83).
g. Location and identification of major components of the waste disposal system.
h. The perimeter of all infiltration areas with field names (named according to the approved permit)
i. Location and ownership of property boundaries within 500 feet of the infiltration area (including
road/rail right-of-ways and easements).
J. Latitude and longitude of the established horizontal control monument (decimal degrees to the sixth
decimal degree).
k. Elevation of the top of the well casing (i.e., measuring point) relative to a common datum.
1. Depth of water below the measuring point at the time the measuring point is established.
in. Delineation of the compliance and review boundaries.
n. Distance measurements verifying all setbacks are being met.
o. Stormwater drainage controls.
p. 100-year floodplain.
q. The date the map is prepared and/or revised.
r. Location of the groundwater lowering system and discharge point (if present).
Boundaries and physical features not under purview of other licensed professions shall be provided by
a Professional Surveyor. Control monuments shall be installed in such a manner and made of such
materials that the monument will not be destroyed due to activities taking place on the property. The
map and any supporting documentation shall be sent to the Division of Water Resources, Non -
Discharge Branch, 1617 Mail Service Center, Raleigh, NC 27699-1617, or Non-
Discharge.Reports&ncdenr.gov. [15A NCAC 02C .0105(f), 02T .0108(b)(1)(B)]
Within 30 days of construction, a Well Construction Record (Form GW-1) listing this permit number
and the appropriate monitoring well identification number shall be completed for each well constructed,
and mailed to the Division of Water Resources, Non -Discharge Branch, 1617 Mail Service Center,
Raleigh, NC 27699-1617, or Non-Discharge.Reportskncdenr.gov. A North Carolina Certified Well
Contractor shall construct the monitoring wells according to the North Carolina Well Construction
Standards (15A NCAC 02C .0113) and local county rules. [15A NCAC 02C .0113, 02T
.0108(b)(1)(B)]
6. Prior to operation of the newly installed facilities, a Final Operation and Maintenance Plan shall be
submitted for review. The plan shall be sent to the Division of Water Resources, Non -Discharge
Branch, 1617 Mail Service Center, Raleigh, NC 27699-1617 or Non-Discharge.Reports&ncdenr.gov.
[15A NCAC 02T .0108(b)(1)(B), 02T .0707(a)]
WQ0035706 Version 2.1 Shell Version 200201 Page 3 of 14

7. Upon completion of construction and prior to infiltration, a soil evaluation shall be completed for all
areas where fill material is placed within the permitted infiltration areas. The report shall certify that
areas utilizing fill material are capable of accepting the designed loading rate. This report shall
specifically address, but not be limited to, soil features such as soil compaction and saturated hydraulic
conductivity of the least permeable layer, soil fertility report and any amendments added, verification
of fill suitability and depth of fill material (and to the seasonal high water table) across the field, as well
as any other properties that might impact the soil's ability to accept infiltrated water. The soil scientist
evaluation shall be mailed to the Division of Water Resources, Non -Discharge Branch, 1617 Mail
Service Center, Raleigh, NC 27699-1617 or Non-Discharge.Reportskncdenr.gov. Infiltration shall not
occur until the Washington Regional Office approves the soils evaluation. [15A NCAC 02T
.0108(b)(1)(A)]
8. The Permittee shall request renewal of this permit on Division -approved forms no later than May 4,
2022. [15A NCAC 02T .0105(b), 02T .0109]
IL PERFORMANCE STANDARDS
The Permittee shall maintain and operate the subject non -discharge facilities 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 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. [15A NCAC 02T
.0108(b)(1)(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 02T .0108(b)(1)(A)]
3. Groundwater monitoring wells 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 .0705(b)]
5. Application rates, whether hydraulic, nutrient, or other pollutant, shall not exceed those specified in
Attachment B. [15A NCAC 02T .0705(m)]
6. High -rate infiltration sites permitted on or after December 30, 1983 have a compliance boundary that
is either 250 feet from the infiltration area, or 50 feet within the property boundary, whichever is closest
to the infiltration area. Any exceedance of groundwater standards at or beyond the compliance
boundary shall require corrective action. Division -approved relocation of the compliance boundary
shall be noted in Attachment B. Multiple contiguous properties under common ownership and
permitted for use as a disposal system shall be treated as a single property with regard to determination
of a compliance boundary. [15A NCAC 02L .0106(d)(2), 02L .0107(b), 02T .0105(h), G.S. 143-
215.1(1), G.S. 143-215.1(k)]
7. The review boundary is midway between the compliance boundary and the infiltration area. Any
exceedance of groundwater standards at or beyond the review boundary shall require preventative
action. [15A NCAC 02L .0106(d)(1), 02L .0108]
8. 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 (i.e., parcel subdivision). [ 15A NCAC
02L .0107(c)]
9. 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]
WQ0035706 Version 2.1 Shell Version 200201 Page 4 of 14

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.
[15A NCAC 02L .0107(f)]
11. The facilities herein were permitted per the following setbacks:
a. The infiltration spray beds 1-1 and 1-2 were originally permitted May 10, 2012. The setbacks for
infiltration sites originally permitted or modified from September 1, 2006 to August 31, 2018 are
as follows (all distances in feet):
i. Each habitable residence or place of assembly under separate ownership: 400'
ii. Each habitable residence or place of assembly owned by the Permittee: 200
iii. Each private or public water supply source: 100
iv. Surface waters: 1003
v. Groundwater lowering ditches: 1003
vi. Surface water diversions:
50
vii. Each well with exception of monitoring wells:
100
viii. Each property line:
200
ix. Top of slope of embankments or cuts of two feet or more in vertical height:
100
x. Each water line:
10
xi. Subsurface groundwater lowering drainage systems:
100 3
xii. Each swimming pool:
100
xiii. Public right of way:
50
xiv. Nitrification field:
20
xv. Each building foundation or basement:
15
xvi. Each impounded public surface water supply:
500
xvii. Each public shallow ground water supply (less than 50 feet deep):
500
' Habitable residences or places of assembly under separate ownership constructed after the
facilities herein were originally permitted or subsequently modified are exempt from this
setback.
2 Setbacks to property lines are not applicable when the Permittee, or the entity from which the
Permittee is leasing, owns both parcels separated by the property line.
3 Setbacks to surface waters, groundwater lowering ditches, and subsurface groundwater
lowering drainage systems have been reduced from 200 to 100 feet because the treatment units
are designed to meet a Total Nitrogen of 7 mg/L and a Total Phosphorus of 3 mg/L.
[15A NCAC 02T .0706(a), 02T .0706(b), 02T .0706(f), 02T .0706(g)]
WQ0035706 Version 2.1 Shell Version 200201 Page 5 of 14

b. The storage and treatment units in the original 99,000 GPD WWTP were modified December 7,
2015. The setbacks for storage and treatment units originally permitted or modified from
September 1, 2006 to August 31, 2018 are as follows (all distances in feet):
I. Each habitable residence or place of assembly under separate ownership: 1001
ii. Each private or public water supply source: 100
iii. Surface waters: 50
iv. Each well with exception of monitoring wells: 100
v. Each property line: 50 2
' Habitable residences or places of assembly under separate ownership constructed after the
facilities herein were originally permitted or subsequently modified are exempt from this
setback.
2 Setbacks to property lines are not applicable when the Permittee, or the entity from which the
Permittee is leasing, owns both parcels separated by the property line.
[15A NCAC 02T .0706(d), 02T .0706(f), 02T .0706(g)]
c. The infiltration basins 1, 2, and Repair were originally permitted April 8, 2020. The setbacks for
infiltration sites originally permitted or modified on or after September 1, 2018 are as follows (all
distances in feet):
I. Each habitable residence or place of assembly under separate ownership:
1001
11. Each habitable residence or place of assembly owned by the Permittee:
50
iii. Each private or public water supply source:
100
iv. Surface waters:
1001
v. Groundwater lowering ditches:
1001
vi. Surface water diversions:
50
vii. Each well with exception of monitoring wells:
100
vi11. Each property line:
50
ix. Top of slope of embankments or cuts of two feet or more in vertical height:
100
x. Each water line:
10
xi. Subsurface groundwater lowering drainage systems:
100 ''
xii. Public right of way:
50
xiii. Nitrification field:
20
xiv. Each building foundation or basement:
15
xv. Each impounded public surface water supply:
500
xvi. Each public shallow ground water supply (less than 50 feet deep):
500
1 Habitable residences or places of assembly under separate ownership constructed after the
facilities herein were originally permitted or subsequently modified are exempt from this
setback.
2 Setbacks to property lines are not applicable when the Permittee, or the entity from which the
Permittee is leasing, owns both parcels separated by the property line.
3 Setbacks to surface waters, groundwater lowering ditches, and subsurface groundwater
lowering drainage systems have been reduced from 200 to 100 feet because the treatment units
are designed to meet a Total Nitrogen of 7 mg/L and a Total Phosphorus of 3 mg/L.
[15A NCAC 02T .0706(a), 02T .0706(b), 02T .0706(f), 02T .0706(g)]
WQ0035706 Version 2.1 Shell Version 200201
Page 6 of 14

d. The storage and treatment units in the 200,000 GPD WWTP expansion were permitted April 8,
2020. The setbacks for storage and treatment units originally permitted or modified on or after
September 1, 2018 are as follows (all distances in feet):
I. Each habitable residence or place of assembly under separate ownership: 1001
ii. Each private or public water supply source: 100
iii. Surface waters: 50
iv. Each well with exception of monitoring wells: 100
v. Each property line: 50 2
' Habitable residences or places of assembly under separate ownership constructed after the
facilities herein were originally permitted or subsequently modified are exempt from this
setback.
2 Setbacks to property lines are not applicable when the Permittee, or the entity from which the
Permittee is leasing, owns both parcels separated by the property line.
[15A NCAC 02T .0706(d), 02T .0706(f), 02T .0706(g)]
III. OPERATION AND MAINTENANCE REQUIREMENTS
1. The Permittee shall operate and maintain the subject facilities as anon -discharge system. [15A NCAC
02T .0700]
2. The Permittee shall maintain an Operation and Maintenance Plan, which shall include operational
functions, maintenance schedules, safety measures, and a spill response plan. [15A NCAC 02T
.0707(a)]
3. Upon the Water Pollution Control System Operators Certification Commission's (WPCSOCC)
classification of the subject non -discharge facilities, the Permittee shall designate and employ a certified
operator in responsible charge (ORC), and one or more certified operators as back-up ORCs. The ORC
or their back-up shall operate and visit the facilities as required by the WPCSOCC. [15A NCAC 02T
.0117]
4. The Permittee shall take measures to prevent effluent ponding in or runoff from the infiltration spray
beds (i.e., non -basins) listed in Attachment B. [15A NCAC 02T .0707(c)]
5. Infiltration equipment shall be tested and calibrated once per permit cycle. [ 15A NCAC 02T .0707(d)]
6. Only treated effluent from the Moyock Regional WWTP shall be infiltrated on the sites listed in
Attachment B. [15A NCAC 02T .0701]
7. The Permittee shall not allow vehicles or heavy machinery on the infiltration area, except during
equipment installation or maintenance activities. [15A NCAC 02T .0707(e)]
8. The Permittee shall prohibit public access to the wastewater treatment, storage, and infiltration
facilities. [15A NCAC 02T .0705(p)]
9. The Permittee shall dispose or utilize generated residuals in a Division -approved manner. [ 15A NCAC
02T .0708, 02T . 11001.
10. The Permittee shall not divert or bypass untreated or partially treated wastewater from the subject
facilities. [15A NCAC 02T .0705(i)]
11. Freeboard in infiltration spray beds 1-1 and 1-2; infiltration basins 1, 2, and Repair; and the groundwater
stilling basin shall not be less than two feet at anytime. [15A NCAC 02T .0705(c)]
WQ0035706 Version 2.1 Shell Version 200201 Page 7 of 14

12. Gauges to monitor waste levels in infiltration spray beds 1-1 and 1-2; infiltration basins 1, 2, and Repair;
and the groundwater stilling basin shall be provided. These gauges 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 .0707(f)]
13. A protective vegetative cover shall be established and maintained on all berms, pipe runs, erosion
control areas, surface water diversions, and earthen embankments (i.e., outside toe of embankment to
maximum allowable temporary storage elevation on the inside of the embankment). Trees, shrubs, and
other woody vegetation shall not be allowed to grow on the earthen dikes or embankments. Earthen
embankments shall be kept mowed or otherwise controlled and accessible. [ 15A NCAC 02T .0707(g)]
14. Metering equipment shall be tested and calibrated annually. [15A NCAC 02T .0707(d)]
15. 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 02T .0705(k)]
16. The infiltration areas shall be cleaned at least once per permit cycle to remove deposited materials that
may impede the infiltration process. Cleaning records shall be maintained at the facility for 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 .0707(h)]
IV. MONITORING AND REPORTING REQUIREMENTS
1. The Permittee shall conduct and report any Division required monitoring necessary to evaluate this
facility's impact on groundwater and surface water. [15A NCAC 02T .0108(c)]
2. A Division -certified laboratory shall conduct all analyses for the required effluent, groundwater, and
surface water parameters. [ 15A NCAC 02H .0800]
3. Flow through the treatment facility shall be continuously monitored, and daily flow values shall be
reported on Form NDMR. Facilities with a permitted flow less than 10,000 GPD may estimate their
flow from water usage records provided the water source is metered. [15A NCAC 02T .0105(k), 02T
.0108(c)]
4. The Permittee shall monitor the treated effluent at the frequencies and locations for the parameters
specified in Attachment A. [ 15A NCAC 02T .0108(c)]
5. The Permittee shall maintain records tracking the amount of effluent infiltrated. 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. Length of time site is infiltrated;
e. Loading rates to each infiltration site listed in Attachment B; and
f. Weather conditions.
[15A NCAC 02T .0108(c)]
6. Freeboard (i.e., waste level to the lowest embankment elevation) in infiltration spray beds 1-1 and 1-2;
infiltration basins 1, 2, and Repair; and the groundwater stilling basin shall be measured to the nearest
inch or tenth of a foot, and recorded weekly. Weekly freeboard records shall be maintained for five
years, and shall be made available to the Division upon request. [15A NCAC 02T .0108(c)]
WQ0035706 Version 2.1 Shell Version 200201 Page 8 of 14

7. 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.5. 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:
Division of Water Resources
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[I5A NCAC 02T .0105(1)]
8. Pursuant to G.S. 143-215.1C(a), the Permiee shall provide to its users and the Division of Water
Resources an annual report summarizing the performance of the wastewater treatment and high -rate
infiltration facility and the extent to which the facility has violated this permit, or federal or State laws,
regulations, or rules related to the protection of water quality. This report shall be prepared on either a
calendar or fiscal year basis and shall be provided no later than 60 days after the end of the calendar or
fiscal year. Two copies of the annual report provided to the Permittee's users shall be submitted to:
Division of Water Resources
Water Quality Permitting Section
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[G.S. 143-215.1C(a)]
9. The Permitee shall maintain a record of all residuals removed from this facility. This record shall be
maintained for five years, and shall be made available to the Division upon request. 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 .0708(b)]
10. A maintenance log shall be kept at this facility. This log shall be maintained for five years, and shall
be made available to the Division upon request. This log shall include:
a. Date of flow measurement device calibration;
b. Date of infiltration equipment calibration;
c. Date and results of power interruption testing on alternate power supply;
d. Visual observations of the plant and plant site; and
e. Record of preventative maintenance (e.g., changing of equipment, adjustments, testing, inspections
and cleanings, etc.).
[15A NCAC 02T .0707(i)]
11. Monitoring wells MW-4, MW-5, MW-6, MW-7, MW-8, and MW-9 shall be sampled after
construction, and within three months prior to initiating high -rate infiltration operations. Monitoring
wells MW-4, MW-5, MW-6, MW-7, MW-8, and MW-9 shall be sampled thereafter at the frequencies
and for the parameters specified in Attachment C. All mapping, well construction forms, well
abandonment forms, and monitoring data shall refer to the permit number and the well nomenclature
as provided in Attachment C and Figure 1. [15A NCAC 02T .0105(m)]
WQ0035706 Version 2.1 Shell Version 200201 Page 9 of 14

12. Monitoring wells MW-I, MW-2, and MW-3 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 1. [15A NCAC 02T .0105(m)]
13. For initial sampling of monitoring wells MW-4, MW-5, MW-6, MW-7, MW-8, and MW-9, the
Permittee shall submit a Compliance Monitoring Form (GW-59) and a Well Construction Record Form
(GW-1) listing this permit number and the appropriate monitoring well identification number. Initial
Compliance Monitoring Forms (GW-59) without copies of the Well Construction Record Forms (GW-
1) are deemed incomplete, and maybe returned to the Permittee without being processed. [15A NCAC
02T .0105(m)]
14. 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 Resources
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[15A NCAC 02T .0105(m)]
15. Noncompliance Notification:
The Permittee shall report to the Washington Regional Office, telephone number [phone],
within 24 hours of first knowledge 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.) rendering the facility incapable of
adequate wastewater treatment.
c. Any facility failure resulting in a discharge to surface waters.
d. Any time self -monitoring indicates the facility has gone out of compliance with its permit
limitations.
e. Ponding in or runoff from the infiltration spray beds (non -basins).
f. Effluent breakout from the infiltration sites.
Emergencies requiring reporting outside normal business hours shall call the Division's Emergency
Response personnel at telephone number [phone], [phone], or [phone]. All
noncompliance notifications shall file a written report to the Washington Regional Office within five
days of first knowledge of the occurrence, and this report shall outline the actions proposed or taken to
ensure the problem does not recur. [15A NCAC 02T .0108(b)(1)(A)]
WQ0035706 Version 2.1 Shell Version 200201 Page 10 of 14

V. INSPECTIONS
1. The Permittee shall perform inspections and maintenance to ensure proper operation of the wastewater
treatment and infiltration facilities. [15A NCAC 02T .07070)]
2. The Permittee shall inspect the wastewater treatment and infiltration facilities to prevent malfunctions,
facility deterioration, and operator errors that may result in discharges of wastes to the environment,
threats to human health, or public nuisances. The Permittee shall maintain an inspection log that
includes the date and time of inspection, observations made, and 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
.0707(1), 02T .07070)]
Division authorized representatives may, upon presentation of credentials, enter and inspect any
property, premises, or place related to the wastewater treatment and infiltration facilities permitted
herein at any reasonable time for determining compliance with this permit. Division authorized
representatives may inspect or copy records maintained under the terms and conditions of this permit,
and may collect groundwater, surface water, or leachate samples. [G.S. 143-215.3(a)(2)]
VI. GENERAL CONDITIONS
1. Failure to comply with the conditions and limitations contained herein may subject the Permittee to a
Division enforcement action. [G.S. 143-215.6A, 143-215.613, 143-215.6C]
2. This permit is effective only with respect to the nature and volume of wastes described in the permit
application, and Division -approved plans and specifications. [G.S. 143-215.1(d)]
3. Unless specifically requested and approved in this permit, there are no variances to administrative codes
or general statutes governing the construction or operation of the facilities permitted herein. [15A
NCAC 02T .0105(n)]
4. The issuance of this permit does not exempt the Permittee from complying with all statutes, rules,
regulations, or ordinances that other jurisdictional government agencies (e.g., local, state, and federal)
may require. [15A NCAC 02T .0105(c)(6)]
5. If the permitted facilities change ownership, or the Permittee changes their name, the Permittee shall
submit a permit modification request on Division -approved forms. The Permittee shall comply with
all terms and conditions of this permit until the permit is transferred to the successor -owner. [G.S. 143-
215.1(d3)]
6. The Permittee shall retain a set of Division -approved plans and specifications for the life of the facilities
permitted herein. [15A NCAC 02T .0105(o)]
7. The Permittee shall maintain this permit until the proper closure of all facilities permitted herein, or
until the facilities permitted herein are permitted by another authority. [15A NCAC 02T .01050)]
WQ0035706 Version 2.1 Shell Version 200201 Page 11 of 14

8. This permit is subject to revocation or modification upon 60-day notice from the Division Director, in
whole or part for:
a. violation of any terms or conditions of this pennit or Administrative Code Title 15A Subchapter
02T;
b. obtaining a permit by misrepresentation or failure to disclose all relevant facts;
c. the Permittee's refusal to allow authorized Department employees upon presentation of credentials:
i. to enter the Permittee's premises where a system is located or where any records are required
to be kept;
ii. to have access to any permit required documents and records;
In. to inspect any monitoring equipment or method as required in this permit; or
iv. to sample any pollutants;
d. the Permittee's failure to pay the annual fee for administering and compliance monitoring; or
e. a Division determination that the conditions of this permit are in conflict with North Carolina
Administrative Code or General Statutes.
[ 15A NCAC 02T .0110]
9. Unless the Division Director grants a variance, expansion of the facilities permitted herein shall not
occur if any of the following apply:
a. The Permittee or any parent, subsidiary, or other affiliate of the Permittee has been convicted of
environmental crimes under G.S. 143-215.613, or under Federal law that would otherwise be
prosecuted under G.S. 143-215.613, and all appeals of this conviction have been abandoned or
exhausted.
b. The Permittee or any parent, subsidiary, or other affiliate of the Permittee has previously abandoned
a wastewater treatment facility without properly closing the facility.
c. The Permittee or any parent, subsidiary, or other affiliate of the Permittee has not paid a civil
penalty, and all appeals of this penalty have been abandoned or exhausted.
d. The Permittee or any parent, subsidiary, or other affiliate of the Permittee is currently not compliant
with any compliance schedule in a permit, settlement agreement, or order.
e. The Permittee or any parent, subsidiary, or other affiliate of the Permittee has not paid an annual
fee.
[15A NCAC 02T .0120(b), 02T .0120(d)]
10. This permit shall not be renewed if the Permittee or any affiliation has not paid the required annual fee.
[15A NCAC 02T .0120(c)]
11. Pursuant to the flow reduction request received July 6, 2009, and approved August 7, 2009, the Division
accepts the data -based design flow rate of 89 gallons per day per bedroom (GPDBR) for the Newton
Sanitary District connection served by this facility. At no time shall wastewater flows exceed the limits
defined in this permit, or exceed the sewer capacity downstream of any new sewer extension or service
connection.
The Permittee shall report the measured monthly average amount of wastewater flow contributed per
unit (GPDBR) for the 12 months prior to permit renewal. If any of these monthly averages are within
20% of the approved value, the Permittee shall reevaluate the approved value using the methodology
applied to determine the approved flow rate of 89 GPD/BR, and submit this information with the
renewal application for reevaluation of the approve flow rate. [15A NCAC 02T .0114(f)]
WQ0035706 Version 2.1 Shell Version 200201 Page 12 of 14

12. The Permittee shall retain the Division's written approval of the authorized adjusted daily design flow
rate for the life of this facility, and shall transfer this approval to any future Permittee. [15A NCAC
02T .0114(f)]
Permit issued this the 8tn day of April 2020
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
r
S. Daniel Smith, Director
Division of Water Resources
By Authority of the Environmental Management Commission
Permit Number WQ0035706
WQ0035706 Version 2.1 Shell Version 200201 Page 13 of 14

Permit No. WQ0035706
Currituck County
Moyock Regional WWTP
ENGINEERING CERTIFICATION
❑ Partial ❑ Final
High -Rate Infiltration System
April 8, 2020
Currituck County
I, , as a duly licensed North Carolina Professional
Engineer, having ❑ periodically / ❑ fully observed the construction of the permitted facilities, do hereby
state to the best of my abilities that the facility was constructed in compliance with G.S. 143-215.1,
Administrative Code Title 15A Subchapter 02T, this permit, and the Division -approved plans and
specifications.
Documentation of any variation to this permit, and the Division -approved plans and specifications, is in the
attached as -built drawings.
Description of variations:
Professional Engineer's Name
Firm Name
Finn No.
Address
City
State
Zip Code
Telephone
Email mm
I Seal, Signature, and Date
THE COMPLETED ENGINEERING CERTIFICATION, INCLUDING ALL SUPPORTING
DOCUMENTATION, SHALL BE SENT TO THE FOLLOWING ADDRESS:
NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
NON -DISCHARGE BRANCH
By U.S. Postal Service By Courier/Special DelivM
1617 MAIL SERVICE CENTER 512 N. SALISBURY ST.
RALEIGH, NORTH CAROLINA 27699-1617 RALEIGH, NORTH CAROLINA 27604
WQ0035706 Version 2.1 Shell Version 200201 Page 14 of 14

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PPI 002 — WWTP Effluent (New WWTP)
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
10
2 x Week
Composite
00940
Chloride (as Cl)
mg/L
3 x Year'
Grab
31616
Coliform, Fecal MF, M-FC Broth, 44.5 °C
#/100 mL
14
2 x Week
Grab
50050
Flow, in Conduit or thru Treatment Plant
GPD
200,000
Continuous
Recorder
00610
Nitrogen, Ammonia Total (as N)
mg/L
4
2 x Week
Composite
00625
Nitrogen, Kjeldahl, Total (as N)
mg/L
2 x Week
Composite
00620
Nitrogen, Nitrate Total (as N)
mg/L
10
2 x Week
Composite
00600
Nitrogen, Total (as N)
mg/L
7
2 x Week
Composite
00400
pH
su
5 x Week
Grab
00665
Phosphorus, Total (as P)
mg/L
3
2 x Week
Composite
70300
Solids, Total Dissolved — 180 °C
mg/L
3 x Year'
Grab
00530
Solids, Total Suspended
mg/L
15
2 x Week
Composite
3 x Year monitoring shall be conducted in March, July, and November.
WQ0035706 Version 2.1 Attachment A Page 2 of 4

PPI 003 - Groundwater Lowering System Effluent (Surface Water Monitoring Station South of Check Dam)
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
00680
Carbon, Total Organic
mg/L
■
3 x Year 1
Grab
00940
Chloride (as Cl)
mg/L
250
Aff-3
x Year'
Grab
31616
Coliform, Fecal MF, M-FC Broth, 44.5 °C
#/100 mL
Monthly
Grab
00610
Nitrogen, Ammonia Total (as N)
mg/L
1.5
Monthly
Grab
00620
Nitrogen, Nitrate Total (as N)
mg/L
I it
Monthly
Grab
00600
Nitrogen, Total (as N)
mg/L
Monthly
Grab
00400
pH
su
6.5
8.5
Monthly
Grab
00665
Phosphorus, Total (as P)
mg/L
Monthly
Grab
70300
Solids, Total Dissolved — 180 °C
mg/L
500
3 x Year'
Grab
1. 3 x Year monitoring shall be conducted in March, July, and November.
WQ0035706 Version 2.1 Attachment A Page 3 of 4

PPI 004 - Groundwater Lowering System Effluent (Groundwater Stilling Basin)
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
00680
Carbon, Total Organic
mg/L
3 x Year 1
Grab
00940
Chloride (as Cl)
mg/L
250
3 x Year'
Grab
31616
Coliform, Fecal MF, M-FC Broth, 44.5 °C
#/100 mL
Monthly
Grab
00610
Nitrogen, Ammonia Total (as N)
mg/L
1.5
Monthly
Grab
00620
Nitrogen, Nitrate Total (as N)
mg/L
I it
Monthly
Grab
00600
Nitrogen, Total (as N)
mg/L
Monthly
Grab
00400
pH
su
6.5
8.5
5 x Week
Grab
00665
Phosphorus, Total (as P)
mg/L
Monthly
Grab
70300
Solids, Total Dissolved — 180 °C
mg/L
500
3 x Year'
Grab
1. 3 x Year monitoring shall be conducted in March, July, and November.
WQ0035706 Version 2.1 Attachment A Page 4 of 4

ATTACHMENT B — APPROVED LAND APPLICATION SITES AND LIMITATIONS
Currituck County — Moyock Regional WWTP
Permit Number: WQ0035706 Version: 2.1
INFILTRATION AREA INFORMATION
APPLICATION LIMITATIONS
Site
Owner
County
Latitude
Longitude
Net
Acreage
Dominant
Soil Series
Parameter
Rate
Units
1-1
Currituck County
Currituck
36.535169'
-76.203344'
0.287
Roanoke
01284 —Non-Discharge Application Rate
3.997
GPD/ft2
1-2
Currituck County
Currituck
36.534807'
-76.203382'
0.287
Roanoke
01284 — Non -Discharge Application Rate
3.997
GPD/ft2
1
Currituck County
Currituck
36.530620'
-76.202794'
0.51
Roanoke
01284 — Non -Discharge Application Rate
4.45
GPD/ft2
2
Currituck County
Currituck
36.530784'
-76.204552'
0.51
Roanoke
01284 — Non -Discharge Application Rate
4.45
GPD/W
Repair
Currituck County
Currituck
36.530702°
-76.203673°
0.51
Roanoke
01284 — Non -Discharge Application Rate
4.45
GPD/ft2
Totals
2.104
WQ0035706 Version 2.1 Attachment B Page 1 of 1

THIS PAGE BLANK

ATTACHMENT C — GROUNDWATER MONITORING AND LIMITATIONS Permit Number: WQ0035706 Version: 2.1
Monitoring Wells: MW-1, MW-2, MW-3, MW-4, MW-5, MW-6, MW-7, MW-8, and MW-9
GROUNDWATER CHARACTERISTICS
GROUNDWATER STANDARDS
MONITORING REQUIREMENTS
PCS Code
Parameter Description
Daily Maximum
Frequency Measurement
Sample Type
Footnotes
00680
Carbon, Tot 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
GWVOC
Volatile Compounds (GW)
Present: Yes/No
Annually
Grab
L4,5
82546
Water Level, Distance from measuring point
feet
3 x Year
Calculated
L2,3
1. 3 x Year monitoring shall be conducted in March, July, and November; Annual monitoring shall be conducted in 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 gg/L or less
b. Standard Method 621 OD, PQL at 0.5 gg/L or less
c. EPA Method 8021, Low Concentration, PQL at 0.5 gg/L or less
d. EPA Method 8260, Low Concentration, PQL at 0.5 gg/L or less
e. Another method with prior approval by the Water Quality Permitting Section Chief
Any method used shall meet the following qualifications:
a. A laboratory shall be DWR certified to run any method used.
b. The method used shall include all the constituents listed in Table VIII of Standard Method 6230D.
c. The method used shall provide a PQL of 0.5 gg/L or less that shall be supported by laboratory proficiency studies as required by the DWR Laboratory Certification Unit. Any constituents
detected above the MDL but below the PQL of 0.5 gg/L shall 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 supervisor, telephone number [phone],
shall 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 shall 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.
WQ0035706 Version 2.1 Attachment C Page 1 of 1

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