WS0801070_Application_20230123

Groundwater Management Associates, Inc.
4300 Sapphire Court, Suite 100
Greenville, North Carolina 27834
Telephone [phone]
www.cima-nc.com
January 23, 2023
Mr. Geoffrey Kegley
Hydrogeologist
North Carolina Department of Environmental Quality
127 Cardinal Drive Extension
Wilmington, NC 28405
Re: Well Construction Permit Application for a Non -Potable Water -Supply Well for the Onslow
Water and Sewer Authority (ONWASA) Southeast Area Infiltration Basins Project
Dear Geoff,
Groundwater Management Associates, Inc. (GMA) is working as a subconsultant to The Wooten
Company to support the construction phase of ONWASA's Southeast Area Infiltration Basin
wastewater treatment facility near Holly Ridge, Onslow County, NC. This letter includes an
Application for a Permit to Construct a Water Supply Well (Form GW-22W) that will be used in
the filling and testing of infiltration basins for the facility. The completed application form is
attached along with figures and other supporting documentation. Below, we provide details on
the proposed well that will withdraw from the Castle Hayne Aquifer.
Background
The new wastewater treatment facility will include a series of 26 High Rate Infiltration (HRI)
basins to manage the infiltration of high -quality effluent from a new wastewater treatment plant
that will be built at a site on Dolph Everett Road (see Figure 1 and Attachment 1). The HRI
basins will operate under an amended Non -Discharge permit for wastewater effluent disposal
(Permit #WQ0019907).
Prior to use of the HRI basins, each basin will be tested by filling it with non -potable water
produced from a new water -supply well that is planned to be installed at the facility. The
proposed well will be screened within the lower Castle Hayne Aquifer unit, and the design
capacity for the well will be 400 gallons per minute (GPM). The new well will be used to fill
each HRI basin individually.

Geoffrey Kegley
Page 2
The Wooten Company anticipates that construction of the well will occur in 2024. Withdrawals
from the well will be covered by a Central Coastal Plain Capacity Use Area permit, and ONWASA
is applying for the CCPCUA permit. This well will be used for non -potable purposes, and this
will not be a Public Water Supply Well.
Well Construction Permit Application Details
The completed GW-22W form (attached) provides details of the well owner, contact
information, intended use, and design capacity for the well. The Wooten Company is designing
the pipeline connections to direct water from the well to fill each new infiltration basin and to
conduct individual controlled infiltration tests. This testing is required before the new infiltration
basins can accept treated wastewater.
The Attached Figure 1 presents the location for the proposed well in addition to property lines.
The proposed well location will be at N 34.5065940, W 77.5015810. The proposed well location
meets the setback requirements outlined in 15A NCAC 02C .0107.
Figure 1 also illustrates the locations of four residential properties within 1500 feet of the
proposed well. Those residential properties are not served by public water supply from
ONWASA, so all of those properties are believed to be supplied by individual private wells. The
closest of these properties is approximately 500 feet from the proposed well. No other supply
well sites occur within 1500 feet of the proposed well.
Figure 2 presents a diagram showing the proposed well construction details, including: borehole
and well diameters, planned well depth, screen intervals, gravel -pack interval, casing materials
and thicknesses, grout intervals, and wellhead completion details. Note that the well casing will
extend a minimum of 12 inches above land surface and will be equipped with a temporary well
seal until the final pump design and wellhead piping can be determined by The Wooten
Company. Following well construction and development, a 24-hour constant rate pumping test
will be performed at the 400 gpm design capacity. Based upon the hydraulic performance of
the well as determined by the pumping test, a final pump will be designed, and the final
wellhead will be constructed.
At this time, The Wooten Company has not bid the drilling work. All well contractor work will
be done by a NC Licensed Well Contractor, and all well construction will be completed in
accordance with the 15A NCAC 02C Well Construction Standards. The Wooten Company and
ONWASA anticipate that construction of the well will not begin for approximately 15 months
(estimated April of 2024). The well construction work will be performed as a part of a larger
construction project that will include the pump installation and piping system to convey water
from the proposed well to the infiltration basins for infiltration testing. Obtaining a well
construction permit is needed now as a part of obtaining an updated Non -Discharge Permit

Geoffrey Kegley
Page 3
from NCDEQ. So, ONWASA is applying for the well construction permit in advance of
contracting for the work.
The design flow rate of the proposed well is 400 GPM, and the daily capacity of the well will be
0.576 MGD. A Central Coastal Plain Capacity Use Area permit will be required for the proposed
use of the well. A CCPCUA permit application is being submitted to the NC Division of Water
Resources, and well construction will not occur until the CCPCUA permit has been received.
The proposed well location is within the footprint of an existing spray irrigation field that will be
decommissioned prior to construction of the new well. As shown on Attachment 1, the
proposed non -potable water -supply well will meet the setback of > 100 feet from the proposed
infiltration basins that will be constructed. GMA has also reviewed NCDEQ incident maps of the
area, and we did not identify any known or suspected contamination sources within 500 feet of
the proposed well.
This Application for Permit to Construct a Water Supply Well was prepared by Groundwater
Management Associates, Inc. on behalf of ONWASA. GMA is a professional corporation licensed
to practice geology (#C-121) and engineering (#C-0854) in North Carolina. I. James K. Holley,
a North Carolina Licensed Geologist employed by GMA, do certify that the information provided
in this permit application package is accurate and correct to the best of my knowledge.
Please let me know if you have any questions or need additional information.
Sincerely,
Groundwater Management Associates, Inc.
James K. Holley, P.G.
Senior Hydrogeologist
Enclosures:
Application Form GW-22W
Figure 1 - Location of the Proposed Non -Potable Water Supply Well at the Southeast
Area Infiltration Basins
Figure 2 — Proposed Well Construction — ONWASA — Non -Potable Water -Supply Well
Attachment 1 —The Wooten Company Drawing C200 dated December 2022.
CC: David Mohr, P.E. — Chief Operations Officer — ONWASA
Jeff Lohr, P.E. — Engineering Manager - ONWASA
Carl Scharfe, P.E. — The Wooten Company
John Wise, P.E. — Groundwater Management Associates, Inc.

NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY — DIVISION OF WATER RESOURCES
APPLICATION FOR PERMIT TO CONSTRUCT A WATER SUPPLY WELL OR WELL SYSTEM
(Wells or Well Systems with a Design Capacity of 100,000 Gallons Per Day or Greater)
PLEASE TYPE OR PRINT CLEARLY
In accordance with the provisions of Article 7, Chapter 87, General Statutes of North Carolina and regulations pursuant thereto,
application is hereby made for a permit to construct water supply wells.
1. Date: January 20, 2023
2. County: Onslow
FOR OFFICE USE ONLY
PERMIT NO. ISSUED DATE:
3. Applicant Onslow Water and Sewer Authoritv Telephone: [phone]
Applicant's Mailing Address: 228 Georgetown Road Jacksonville NC 28540
Applicant's Email Address (if available): dmohr(cDonwasa.com
4. Contact Person (if different than Applicant): David Mohr Telephone: [phone]
Contact Person's Mailing Address: Same as Applicant
Contact Person's Email Address (if available):
5. Property Owner (if different than Applicant): Same as Applicant Telephone:
Owner's Mailing Address:
Owner's Email Address (if available):
6. Property Physical Address (including PIN Number): Dolph Everett Road (SR1535) Holly Ridge NC (PIN 425800108610)
City: Holly Ridge County: Onslow Zip Code: 28445
7. Intended use of Well or Well System: Non -potable supply for filling and testing infiltration basins
(examples: irrigation, consumption, etc.)
8. Will the proposed water supply well or well system replace or be added to an existing well or well system? No
(If yes, complete questions 7 and 8) (If no, complete question 7 and then skip to question 9)
9. Total design capacity of proposed well or well system in gallons per day (gpd): 576,000
10. If adding a well to an existing system, list the existing water supply wells in the existing system and their respective yields:
NA
11. Is this a public well or well system? No If yes, give Public Water ID Number:
If yes, give Project Engineer and contact information:
12. Well Contractor: To Be Determined (TBD) from Bidding Well Contractor Certification No.: TBD
Well Contractor Address:
PROPOSED WELL CONSTRUCTION INFORMATION
As required by 15A NCAC 02C .0105(f)(7), attach a well
construction diagram of each well showing the following:
a. Borehole and well diameter
b. Estimated well depth
C. Screen intervals
d. Sand/gravel pack intervals
e. Type of casing material and thickness
f. Grout horizons
g. Well Head completion details
No. of wells to be constructed in unconsolidated
material: 1
No. of wells to be constructed in bedrock: 0
Total No. of wells to be constructed: 1
(add answers from 2 and 3)
Estimated beginning construction date: April 1, 2024
Estimated construction completion date: May 1, 2024
Continued on Reverse

ADDITIONAL INFORMATION
1. As required by 15A NCAC 02C .0105(f)(5), attach a scaled map of the site showing the locations of the following:
a. All property boundaries, at least one of which is referenced to a minimum of two landmarks such as identified roads,
intersections, streams, or lakes within 500 feet of the proposed well or well system.
b. All existing wells, identified by type of use, within 500 feet of the proposed well or well system.
C. The proposed well or well system.
d. Any test borings within 500 feet of proposed well or well system.
e. All sources of known or potential groundwater contamination (such as septic tank systems, pesticide, chemical or fuel
storage areas, animal feedlots as defined in G.S. 143-215.1013(5), landfills, or other waste disposal areas) within 500 feet
of the proposed well or well system.
2. As required by 15A NCAC 02C .0105(g)(3), for wells screened in multiple zones or aquifers, provide representative data on the
static water level, pH, specific conductance, and concentrations of sodium, potassium, calcium, magnesium, sulfate, chloride,
and carbonates from each aquifer or zone from which water is proposed to be withdrawn.
3. Attach any water use permits (if required). [e.g. Central Coastal Plain Capacity Use Area Permit is required in 15 eastern NC
counties by NC Division of Water Resources, visit: http://www.ncwater.org]
SIGNATURES
The Applicant hereby agrees that the proposed well(s) will be constructed in accordance with approved specifications and conditions of
the Water Supply Well Construction Permit as regulated under the Well Construction Standards (Title 15A of the North Carolina
Administrative Code, Subchapter 2C) and accepts full responsibility for compliance with these rules
L�LA�11 - 11411� Pc" CW /W 4 P020rr�s
Signature of Applicant or *Agent Title of Applicant or *Agent
�y / C> /-A • AA0 * If signing as Agent, attach authorization agreement stating
Printed name of Applicant or *Agent that you have the authority to act as the Agent.
If the property is owned by someone other than the applicant, the property owner hereby consents to allow the applicant to construct
water supply wells as outlined in this Water Supply Well Construction Permit application and that it shall be the responsibility of the
applicant to ensure that the water supply well(s) conform to the Well Construction Standards (Title 15A of the North Carolina
Administrative Code, Subchapter 2C).
Signature of Property Owner (if different than Applicant)
Printed name of Property Owner (if different than Applicant)
DIRECTIONS
Please send the completed application to the appropriate Division of Water Resources' Regional Office:
Asheville Regional Office Raleigh Regional Office Wilmington Regional Office
2090 U.S. Highway 70 3800 Barrett Drive 127 Cardinal Drive Extension
Swannanoa, NC 28778 Raleigh, NC 27609 Wilmington, NC 28405
Phone: [phone] Phone: [phone] Phone: [phone]
Fax: [phone] Fax: [phone] Fax: [phone]
Fayetteville Regional Office
225 Green Street, Suite 714
Fayetteville, NC 28301-5094
Phone: [phone]
Fax: [phone]
Mooresville Regional Office
610 East Center Avenue
Mooresville, NC 28115
Phone: [phone]
Fax: [phone]
Washington Regional Office
943 Washington Square Mall
Washington, NC 27889
Phone: [phone]
Fax: [phone]
Winston-Salem Regional Office
450 W. Hanes Mill Road
Suite 300
Winston-Salem, NC 27105
Phone: [phone]
Fax: [phone]
GW-22W Rev. 3-1-2016

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LEGEND
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GMA
0 25'
SCALE IN FEET
GROUNOWATIR MAN"IMINT ASSOCIATES, INC.
File: J:\DWGS\50533
PROPOSED WELL CONSTRUCTION — ONWASA — NON —POTABLE WATER —SUPPLY WELL
Date: 1/18/23
Project No. 50533
SOUTHEAST AREA INFILTRATION BASINS, HOLLY RIDGE, NC
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PROPOSED DOWNSTREAM
SAMPLE POINT
0 100' 200' 400'
SCALE: 1 `200'
EXISTING DRAINAGE WAY
MONITORING WELLS
NEW WELLS NORTHING EASTING
MW-1a 281,200.03 2,451,563.50
MW-1b 281,243.36 2,452,053.26
MW-2a 279,723.779 2,453,194.31
MW-5 278,616.94 2,452,094.06
EXISTING WELLS
NORTHING
EASTING
MW-1
282,195.58
2,451,542.15
MW-2
280,395.91
2,453,075.74
MW-3
278,574.89
2,452,802.07
MW-4
278,552.13
2,451,295.86
EXISTING
TEMPORARY WELLS
NORTHING
EASTING
TMW-5
281,473.54
2,451,742.93
TMW-6
281,153.73
2,451,226.12
TMW-7
280,035.44
2,452,885.45
TMW-8
279,353.47
2,451,673.97
TMW-9
279,362.20
2,452,330.21
TMW-10
281,793.67
2,450,931.13
STATE PLANE COORDINATES GIVEN IN US SURVEY FEET
NOTE: TEMPORARY MONITORING WELLS TO BE REMOVED DURING
INFILTRATION BASIN CONSTRUCTION.
2 3
O
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1- gravel cement
2- boned steel manhole cover
3- locking, expandable plug
4- land surface
5- 2-inch PVC casing
6- 2-inch. slot 0.01 " PVC screen
7- #2 DSI filtergravel
-1- bentonite chips
'I neat cement grout
DETAIL - NEW MONITORING WELL
NO SCALE
FINAL DRAWING
FOR REVIEW PURPOSES ONLY
NOT RELEASED FOR CONSTRUCTION
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90% SUBMITTAL SET
DESIGNED BY:
CWS
DRAWN BY:
PMD
CHECKED BY:
CWS
PROJECT NO.:
2896-AL
DATE:
DECEMBER 2022
SCALE
0 1/2 1
IF THIS BAR DOES NOT
MEASURE V THEN DRAWING
IS NOT TO FULL SCALE
C200