WI0800082_GEO THERMAL_20040507

May7,2004
MEMORANDUM
To: File
cc: Charles Stehman, Groundwater Supervisor
Wilmington Regional Office
From: Thomas Slusser 7-'.Is
Hydrogeological Technician II
Underground Injection Control Program
Reference: UIC Permit # WI080006
Issued to Wilmington Housing Authority
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P. E. Director
Division of Water Quality
Coleen H. Sullins, Deputy Director
Division of Water Quality
This permit number for construction and operation of 4 Type SQW injection wells was originally
issued in October 1995 and due to expire in October 2000. Effective February 1, 1997, this type of
injection well is deemed permitted by rule and no longer requires a permit.
On this date the record for this permit was removed from the UIC:file database, which keeps track of
injection wells that need permits, and added to the 5QW1ist database, which keeps track ofinjection
wells that do not require permits. Likewise, the paper file was moved to a drawer that stores SQW
injection well files.
N. C. Division of Water Quality / Groundwater Section
1636 Mail Service Center Raleigh, N.C. 27699-1636
Phone: [phone] Fax: [phone] Internet: http://gw.ehnr.state.nc.us
Customer Service
1-877-623-6748
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Stal. --s. "•-~•h Caro1 a C:: UI 1'4UI II I 111 I
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A Preston Howard, Jr., P.E., Director
r~-~A . --~ .. a an
D E HNR
GROUNDWATER SECTION
October 6, 1995
MEMORANDUM
To:
From:
Diane Rossi
Bruce Reed
Charles Stehman
Groundwater Section
Wilmington Regional Office
Karen Harmon 'Xdl
UIC Group
Groundwater Section
Raleigh Central Office
Re: Permit Nos. WI0B0000S and WI0800006 issued to Wilmington
Housing Authority for two injection well systems.
Two new permits for construction and operation of injection
facilities have been approved by RCO-UIC. A copy of each
application, required variance, and permit are enclosed for your
UIC files. .
Please inspect the sites, if you have not already done so to
your satisfaction, and complete the Preconstruction Injection
Facility Inspection Report (form A) or the Injection Facility
Inspection Report (form B), as required at the time of your
inspection. Send the appropriate form to RCO-UIC.
Two more permits for 1914/1916 Gufford Drive, Vesta Village,
and 1002/1004 S.15th Street, Hillcrest Apartments will follow
early next week (Oct.9, 1995). All four permits (and possibly a
fifth) are for pilot tests of the heat exchangers and pumps.
Eight hundred units of housing may receive closed-loop heat pump
systems as a result of the pilot tests.
cc: UIC Files
WiRO Files
Enclosures
P.O. Box 29535. Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post-consumer paper
PERK.-, T APPROVAL REQUEST
Please initial and
return to Karen
for processing j f
Ted Bush � `i, !� �,I 3! ?',
Bob Cheek �z4c
Mark Milligan
Karen Harmon

. " . .
I State of North Cu, u11na
Department of Environment,
Health and Natural Resources
Division of Environmental Management NA James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary DEHNA.
A Preston Howard, Jr., P.E., Director
Mr. William G. Foster
GROUNDWATER SECTION
October 3, 1995 ·
Assistant Executive Director/Operations
Wilmington Housing Authority
P.O. Box 899
Wilmington, NC 28402
Dear Mr. Foster,
In accordance with your application dated September 20, 1995,
we are forwarding Permit No. WI0800006 for the construction and
operation of an injection well system, for the purpose of operating
a vertical closed-loop heat pump system, in New Hanover County.
This permit shall be effective from the date of issuance
until October 31, 2000, and shall be subject to the conditions and
limitations stated therein, including the requirement to notify
this office by telephone 48 hours prior to initiation of operation
of the facility.
In order to continue uninterrupted legal use of this well for
the stated purpose, you should submit an application to renew the
permit six months prior to its expiration date.
If you have any questions regarding your permit please feel
free to contact me at [phone].
cc: UIC Files
WiRO Files
Enclosures
Sincerely,
~£U.U\a. ~~
Karen A. Harmon
Underground Injection Control Program
P.O. Box 29535,-Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post-consumer paper
State of North Carolina
Department of Environment,
1.9;VA
Health and Natural Resources A'❑ivision of Environmental Management
%MOO
JoS. Hunt, Secreta
Jonathan S. Howes,
Secretary
LJ
A. Preston Howard, Jr., P,E., Director
Wilmington Housing Authority
P.O. Box 899
Wilmington, NC 28402
Attn: Mr. William G. Foster
Assistant Executive Director/operations
Subjects: 1) Request for Variance - NORTH CAROLINA WELL
CONSTRUCTION STANDARDS Rule 15A NCAC 2C
.0213(d)(1)(A) - Required extension of well casing
above Land surface and depth of grout
2) Request for Variance - NORTH CAROLINA WELL
CONSTRUCTION STANDARDS Rule 15A NCAC 2C
.0213(c)(1)(D) - Required location of well 25 feet
or more from a water -tight sewerage and liquid waste
collection facility in the case of a single-family
dwelling
Wilmington Housing Authority Property, at
1902/1904 Gufford Drive, Vesta Village,
NC1-8C, Wilmington, NC
Dear Mr. Foster:
This is in response to your petition requesting variances
from the referenced Rules. Rule 2C .0213 (d)(1)(A) requires
that a well casino_ be installed which extends from at least 12
inches above land surface to the too of the infection zone.
You indicated in the letter dated September 26, 1995, that the
previously described injection well construction method would
not be possible due to the engineering design of the system.
Rule 2C .0213 (c) (1) (D) requires that an injection well
bQ located 25 fee,t or_,more from a water-ti<jht s_ewe_rae___an
liquid waste collection facility in the case of a_s1nale-.
family dwelling. You indicated in the letter dated September
26, 1995, that meeting the minimum separation distance
requirement would not be possible due the high density of
housing (and sewerage pipes) at the site.
P.O. Box 29535, Rdelgh, North Carolina 2762&0535 Telephone [phone] FAX [phone]
An Equal opportunity Affirmative Action Employer 50% recycled/ I O% post -consumer paper

Mr. William G. Foster
Variances to 15A NCAC 2C .4213
Page 2
Factors that would act to mitigate any potential problems
which could adversely affect human health and/or the effective
operation of these wells, because of not meeting the
regulatory requirements, are as follows:
1. Each well will be completely filled with high -solids
bentonite grout after installation of the closed -
loop piping in the well, as described and
illustrated in the permit application dated
September 20, 1995. This construction method will
provide an adequate seal and prevent the vertical
migration of contaminants by way of the borehole.
2. The fluid to be circulated in the vertical closed -
loop heat pump system will be potable water.
Based on my review of the available information and
recommendations by our staff, it is my finding that the
combination of factors specified above are sufficient to
satisfy the conditions for approval of variances from I5A NCAC
2C .0213 (d) (1) (A) and from 15A NCAC 2C .0213 (c) (1) (D) , as
defined in 15A NCAC 2C .0118. On that basis, and with the
additional requirement that you notify the Tfilm.ington Regional
Office at [phone], at least 24 hours before any veal
construction activities are begun, the requested variances
from Rule 15A NCAC 2C .0213 (d)(1)(A) and from Rule 15A NCAC
2C .0213 (c)(1)(d) are hereby granted.
The granting of these variances does not affect any of
the other requirements of the WELL CONSTRUCTION STANDARDS or
of the requirements of any other applicable laws or rules.
5incerel ,
Tk L. Bush Jr., Assistant Chief
Groundwater Section
Division of Environmental Management
cc: UiC files
WiRo
DATE: I nZ-3

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
RALEIGH, NORTH CAROLINA
PERMIT FOR THE CONSTRUCTION AND OPERATION OF A WELL SYSTEM FOR
INJECTION
In accordance with the provisions of Article 7, Chapter 87;
Article 21, Chapter 143, and other applicable Laws, Rules, and
Regulations
PERMISSION IS HEREBY GRANTED TO
Wilmington Housing Authority
FOR THE CONSTRUCTION AND OPERATION OF AN INJECTION WELL SYSTEM for
the purpose of operating a vertical closed-loop heat pump system.
This well system, to be comprised of 4 wells, will be located at
1902/1904 Gufford Drive, Vesta Village, NCl-SA, Wilmington, North
Carolina, in New Hanover County, and will be constructed and
operated in accordance with the application dated September 20,
1995, and in conformity with the specifications and supporting data
submitted, all of which are filed with the Department of
Environment, Health, and Natural Resources and are considered a
part of this permit.
This permit is for Construction and Operation only, an? does
not waive any provisions of the Water Use Act or any other
applicable Laws, Rules, or Regulations. Operation and use of an
injection well system shall be in compliance with Title 15A North
Carolina Administrative Code 2C, .0100 and .0200, and any other
Laws, Rules, and Regulations pertaining to well construction and
use.
This permit shall be effective, unless revoked, from the date
of its issuance until October 31, 2000, and shall be subject to the
specified conditions and limitations set forth in Parts I through
X hereof.
~rel
Permit issued this the :;i day of Octo:.::b~e~r~,__.:;1~9~9=-=5 ~·----------
~ ~--·-'--/ . ..< £,Jk/2 z;
Ted L. Bush, Jr., Assistant Chief
Groundwater Section
Division of Environmental Management
By Authority of the Environmental Management Commission.
PERMIT NO. WI0800006
PART I -WELL CONSTRUCTION GENERAL CONDITIONS
1. The Permittee must comply with all conditions of this permit
and with the standards and criteria specified in Criteria and
Standards Applicable to Injection Wells (15A NCAC 2C .0200).
Any noncompliance with conditions of this permit constitutes
a violation of the North Carolina Well Construction Act and
is grounds for enforcement action as provided for in N.C.G.S.
87-94.
2. This permit shall become voidable unless the facility is
constructed in accordance with the conditions of this permit,
the approved plans and specifications, and other supporting
data.
3. Each injection well shall not hydraulically connect separate
aquifers.
4. Each injection well shall be constructed in such a manner
that water from land surface cannot migrate into the gravel
pack or well screen.
5. Each injection well shall be secured to reasonably insure
against unauthorized access and use. Each well shall be
permanently labeled with a warning that it is for injection
purposes and the entrance to each well must be secured with a
lockable cap.
6. Each injection well shall be afforded reasonable protection
against damage during construction and use.
7. Each injection well shall have permanently affixed an
identification plate.
8. A completed Well Construction Record (Form GW-1) must be
submitted for each injection well, to the Division of
Environmental Management (Division), within 30 days of
completion of well construction.
PART II -WELL CONSTRUCTION SPECIAL CONDITIONS
At least forty-eight (48) hours prior to constructing each
injection well, the Permittee shall notify the Groundwater
Section -Underground Injection Control (UIC), Central Office
staff, telephone number [phone].
PAGE2 OF8
PART III -OPERATION AND USE GENERAL CONDITIONS
1. This permit is effective only with respect to the nature,
volume of materials and rate of injection, as described in
the application and other supporting data.
2. This permit is not transferable without prior notice to, and
approval by, the Director of the Division of Environmental
Management (Director). In the event there is a desire for
the facility to change ownership, or there is a name change
of the Permittee, a formal permit amendment request must be
submitted to the Director, including any supporting materials
as may be appropriate, at least 30 days prior to the date of
the change.
3 . The issuance of this permit shall not relieve the Permittee
of the responsibility of complying with any and all statutes,
rules, regulations, or ordinances which may be imposed by
other local, state, and federal agencies which have
jurisdiction. Furthermore, the issuance of this permit does
not imply that all regulatory requirements have been met.
PART IV -PERFORMANCE STANDARDS
1. The injection facility shall be effectively maintained and
operated at all times so that there is no contamination of
groundwaters which will render them unsatisfactory for normal
use. In the event that the facility fails to perform
satisfactorily, including the creation of nuisance conditions
or failure of the injection zone to adequately assimilate the
injected fluid, the Permittee shall take immediate corrective
actions including those actions that may be required by the
Division of Environmental Management such as the repair,
modification, or abandonment of the injection facility.
2. The Permittee shall be required to comply with the terms and
conditions of this permit even if compliance requires a
reduction or elimination of the permitted activity.
3. The issuance of this permit shall not relieve the Permittee
of the responsibility for damages to surface or groundwaters
resulting from the operation of this facility .
PAGE3 OF8
PART V -OPERATION AND MAINTENANCE REQUIREMENTS
1. The injection facility shall be properly maintained and
operated at all times.
2. The Permittee must notify the Division and receive prior
written approval from the Director of any planned physical
alterations or additions in the permitted facility or
activity not specifically authorized by the permit.
3. At least forty-eight (48) hours prior to the initiation of
the operation of the facility for injection, the Permittee
must notify by telephone the Groundwater Section -
Underground Injection Control (UIC) , Central Office staff,
telephone number [phone]. Notification is required so
that Division staff can inspect or otherwise review the
injection facility and determine if it is in compliance with
permit conditions.
PART VI -INSPECTIONS
1. Any duly authorized officer, employee, or representative of
the Division of Environmental Management may, upon
presentation of credentials, enter and inspect any property,
premises, or place on or related to the injection facility at
any reasonable time for the purpose of determining compliance
with this permit, may inspect or copy any records that must
be maintained under the terms and conditions of this permit,
and may obtain samples of groundwater, surface water, or
injection fluids.
2. Department representatives shall have reasonable access for
purposes of inspection, observation, and sampling associated
with injection and any related facilities as provided for in
N.C.G.S. 87-90.
3. Provisions shall be made for collecting any necessary and
appropriate samples associated with the injection facility
activities (see attached diagram).
PART VII -MONITORING AND REPORTING REQUIREMENTS
1. Any monitoring (including groundwater, surface water, or soil
sampling) deemed necessary by the Division of Environmental
Management to insure surface and ground water protection,
will be established and an acceptable sampling reporting
schedule shall be followed.
PAGE40F8
2. The Permittee shall report by telephone, within 48 hours of
the occurrence or first knowledge of the occurrence, to the
Wilmington Regional Office, telephone number [phone],
any of the following:
(A) Any occurrence at the injection facility which
results in any unusual operating circumstances;
(B) Any failure due to known or unknown reasons, that
renders the facility incapable of proper injection
operations, such as mechanical or electrical
failures.
3. Where the Permittee becomes aware of an omission of any
relevant facts in a permit application, or of any incorrect
information submitted in said application or in any report to
the Director, the relevant and correct facts or information
shall be promptly submitted to the Director by the Permittee.
4. In the event that the permitted facility fails to perform
satisfactorily, the Permittee shall take such immediate
action as may be required by the Director.
PART VIII -PERMIT RENEWAL
The Permittee shall, at least six (6) months prior to the
expiration of this permit, request an extension.
PART IX -CHANGE OF WELL STATUS
1. The Permittee shall provide written notification within 15
days of any change of status of an injection well. Such a
change would include the discontinued use of a well for
injection. If a well is taken completely out of service
temporarily, the Permittee must install a sanitary seal. If
a well is not to be used for any purpose that well must be
permanently abandoned according to 15 NCAC 2C .0113, Well
Construction Standards.
2. When operations have ceased at the facility and a well will
no longer be used for any purpose, the Permittee shall
abandon that injection well in accordance with the procedures
specified in 15 NCAC 2C .0214, including but not limited to
the following:
(A) All casing and materials may be removed prior to
initiation of abandonment procedures if the
Director finds such removal will not be
PAGESOF8
responsible for, or contribute to, the
contamination of an underground source of drinking
water.
(B) The entire depth of each well shall be sounded
before it is sealed to insure freedom from
obstructions that may interfere with sealing
operations.
(C) Each well shall be thoroughly disinfected, prior
to sealing, if the Director determines that
failure to do so could lead to the contamination
of an underground source of drinking water.
(D) Each well shall be completely filled with cement
grout, which shall be introduced into the well
through a pipe which extends to the bottom of the
well and is raised as the well is filled.
(E) In the case of gravel-packed wells in which the
casing and screens have not been removed, the
casing shall be perforated opposite the gravel
pack, at intervals not exceeding 10 feet, and
grout injected through the perforations.
(F) In those cases when, as a result of the injection
operations, a subsurface cavity has been created,
each well shall be abandoned in such a manner that
will prevent the movement of fluids into or
between underground sources of drinking water and
in accordance with the terms and conditions of the
permit.
(G) The Permittee shall submit a Well Abandonment
Record (Form GW-30) as specified in 15A NCAC 2C
.0213(h) (1) within 30 days of completion of
abandonment.
3. The written documentation required in Part IX (1) and (2) (G)
shall be submitted to:
Groundwater Section -UIC Staff
DEHNR -Division of Environmental Management
P.O. Box 29578
Raleigh, NC 27626-0578
PART X -OPERATION AND USE SPECIAL CONDITIONS
1. The fluid to be recirculated in the vertical closed-loop
heat pump system shall be potable water only.
2. The material used to make up the heat exchange loop must
PAGE6 OF8
, .
be composed of high-density polyethylene or polybutylene
pipe.
3. The high-density polyethylene or polybutylene pipe must
be thermally fused according to the manufacturer's
specifications and must not leak after assembly.
4. A high-solids bentonite slurry composed of twenty to
thirty percent (20-30%) by weight solids must be used as
grout and must be emplaced in a continuous operation
through a pipe lowered to the grouting point.
5. The full length of the hole should be grouted.
6. The diameter of the hole must be of sufficient size to
allow placement of the pipe and of a pipe to emplace the
grout. The grout must fill the hole and surround all
pipes.
7. Hole depth must not exceed four hundred and fifty feet
(450').
PERMIT NO. WI0800006
PAGE 7 OF8
11' 'rACIlf4F;NT 1
PERMIT NO. WIGBO0006
The injection facility design incorporates four wells, each one a
closed loop within a borehole which will extend from a depth of 3 feet
below ground level to a depth of 200 feet (variance) and which will be
grouted full length with high -solids bentonite grout. The injection
wells are connected to each other and to the heat pump via a common
influent line and a common effluent line. A trench filled with soil,
sand, -and/or bentonite will extend from the top of each borehole to
the surface and will contain the lateral lines.
Land surface
Headerlpipe system -variable design
Trench
Soil Fill
Sampling port -
influent I
Housing wall
High -solids bentonite fill .
Sensing ports
HP
T t
Sampling port-
! effluent
� , •:o..' ,d � � '�.'�, � ..'r� ;tea• , 4' -
VERTICAL "CLOSED LOOP"
INJECTION WELL, USING
UNCASED BOREHOLE
High -solids bentonite
PAGE 8 OF 8

Housing Authority of the City of Wilmington, N.C.
DRAWER 899 • WILMINGTON, N.C. 28402-0899
AREA CODE 910 • DIAL 341-7700
FAX: [phone]
TDD: 910-341-7768
OFFICE OF EXECUTIVE DIRECTOR • 508 SOUTH FRONT ST.
TENANT SELECTION OFFICE• 341-7747 -(Voice or TDD)
SECTION 8 OFFICE• 341-7727
MAINTENANCE OFFICE• 341-7707
MANAGEMENT/RESIDENT SERVICES• 341-7744 (Voice or TDD)
OPERATIONS DEPARTMENT• 341-7763
September 26, 1995
Mr. Bob Cheek, Supervisor
Permits and Compliance Branch
State of North Carolina
Department of Environmental, Health
and Natural Resources
Division of Environmental Management
Groundwater Section
P.O. Box 29535
Raleigh, NC 27626-0535
Dear Mr. Cheek:
COMMISSIONERS
R. T. HORTON, JR., CHAIRMAN
MRS. BARBARA F. BAKER, VICE CHAIRMAN
DALLAS J. BROWN, JR.
IRVING E. FOGLER
JAMES JAMISON
MRS. ARLENE R. LAWSON
MRS. PAMELA H. QUATE
MRS. ROSA S. WEBB
FREDERICK WILLETTS, Ill
J. ALAN JONES, EXECUTIVE DIRECTOR
RANDOLPH L. GREGORY, CHAIRMAN EMERITUS
SUBJECT: APPLICATION FOR PERMIT TO CONSTRUCT AND/OR USE
A WELL FOR INJECTION WITH A HEAT PUMP SYSTEM
1902/1904 GUFFORD DRIVE, VESTA VILLAGE, NCI-SC
WILMINGTON,NC
Attached is the Application for Permit to Construct and/or Use a Well for Injection with a Heat
Pump System located at 1902/1904 Gufford Drive, Vesta Village. We ate requesting that tne
permit issued cover the entire develoment ofHiHerest Apartments, NCI iC.
Please contact me at [phone] if you have questions or need additional information.
Sincerely,
wi/4h;;,~
Gary Foster
Assistant Executive Director/Operations
dlr
F:\OPS_DEP1\WPWIN60\ESCO\IWPRMI10.WPD
Housing Authority of the City of Wilmington, N.C.
DRAWER 899 • WILMINGTON, N.C. 28402-0899
AREA CODE 910 • DIAL341-7700
FAX: [phone]
TDD: 910-341-7768
OFFICE OF EXECUTIVE DIRECTOR • 508 SOUTH FRONT ST.
TENANT SELECTION OFFICE • 341-7747 • (Voice or TDD)
SECTION 8 OFFICE• 341-7727
MAINTENANCE OFFICE• 341-7707
MANAGEMENT/RESIDENT SERVICES• 341-7744 (Voice or TDD)
OPERATIONS DEPARTMENT• 341-7763
September 26, 1995
Mr. Bob Cheek, Supervisor
Permits and Compliance Branch
State ofNorth Carolina
Department of Environmental, Health
and Natural Resources
Division of Environmental Management
Groundwater Section
P.O. Box 29535
Raleigh, NC 27626-0535
Dear Mr. Cheek:
COMMISSIONERS
R. T. HORTON, JR., CHAIRMAN
MRS. BARBARA F. BAKER, VICE CHAIRMAN
DALLAS J, BROWN, JR.
IRVING E. FOGLER
JAMES JAMISON
MRS. ARLENE R. LAWSON
MRS. PAMELA H. OUATE
MRS. ROSAS. WEBB
FREDERICK WILLETTS, Ill
J. ALAN JONES, EXECUTIVE DIRECTOR
RANDOLPH L. GREGORY, CHAIRMAN EMERITUS
SUBJECT: VARIANCE TO NORTH CAROLINA WELL CONSTRUCTION
STANDARDS, Title 15ANCAC 2C.0200, Criteria and Standards Applicable to
Injection Wells
1902/1904 GUFFORD DRIVE, VESTA VILLAGE, NC1-8C
WILMINGTON,NC
(1) We request a variance to 15A NCAC 2C.0213 (d)(l)(A) which requires that a well casing
be installed which extends from at least 12 inches above land surface to the top of the
injection zone. The injection well construction criteria described in Rule 2C.0213 (d)(l)(A)
will not be possible due to the engineering design of the vertical closed-loop heat pump
system.
(2) We also request a variance to 15A NCAC 2C. 0213 (c)(l)(D) which requires a minimum
horizonal separation of 25 feet between a well and a water-tight sewerage and liquid waste
collection facility in the case of a single family dwelling due to the housing density of the
site. As the fluid is contained within a closed loop, the risk of cross-contamination is
minimal.
Each well will be drilled 200 feet deep. The grout pipe method recommended by the
International Ground Source Heat Pump Association (IGSHP A) will be followed. The closed-
loop ground heat exchanger (GHEX) loop is immediately inserted into the bore hole. Grout is
placed in one continuous operation by pumping, beginning at the bottom of the zone being
sealed and continued until it appears at the ground surface.
Mr. Bob Cheek
Page2
September 26, 1995
Grouting is an important aspect of the installation of a GHEX when used with a ground-source
heat pump system. Not only will it provide the proper heat transfer between the GHEX and the
ground necessary for the most efficient operation of the ground-source heat pump system, but it
will also provide groundwater protection.
This method of construction will prevent any fluids from entering the injection well at the
surface because all well heads will feed into a closed loop system that is underground and out of
view from the system users.
Please contact me at [phone] if you have questions or need additional information.
Sin~rely,
~},1/};:
Gary Foster
Assistant Executive Director/Operations
dlr
F:\OPS_DEP1iWPWIN60\ESCOIIWPRMIT6.WPD
NORTH CAROLINA
ENVlRONMENTAL MANAGEMENT CO:rvtMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
APPLICATION FOR PERMIT TO CONSTRUCT AND/OR USE A WELL FOR INJECTION
WITH A HEAT PUMP SYSTEM
Class 5 Wells
TO: DIRECTOR, NORTH CAROLINA DMSION OF ENVIRONMENT AL MANAGEMENT
September 20 19_95 DATE: _______ ~
In accordance with the provisions of Article 7, Chapter 87; Article 21, Chapter 143, and regulations pursuant
thereto, APPLICATION is hereby made for a PERMIT to construct and/or use a well or well system as described
below and in any accompanying data submitted as part of this APPLICATION.
Please type or print clearly.
A. PERMIT APPLICANT
Name: Wilmington Housing Authority
Address: P. 0. Box 899
City: Wi J roi ngtan, NC Zip code: ___ 2"""84=0..._2..__ ______ _
County: New Hanov er
Telephone: [phone]
B. STATUS OF APPLICANT
Federal ____ State ______ Private __________ _
Public_____ Commercial Other __,,C..,.i .... t,..y ______ _
Native American Lands ________ _
C. PROPERTY OWl'ffiR (if different from applicant)
Name:
same
Address:
City: ------------~Zip code: _________ _
County:
Telephone:
D. FACILITY (SITE) DATA (Fill out ONLY if the Status of Owner is Federal, State, Public or Commercial)
E.
F.
Name of Business or Facility: Wilmington Housing Authority
Address: 1902~ l'::J04 Gufford Dn.ve
City: Wilming ton -NC -Lip co---cd-e:.,..2,.....84-r-0..-1,,........-----
County: New HanQver
Telephone: {910) 341-776 3
Contact Person: Gary Foster
HEATINGCONTRACTORDATA l , H . Name: But er s eating & Air Conditioning Ser.
Address: P . O. Box 1500
City: Le 1 and NC Zip code:_2_8_4_5_1 ____ _
County: Brunswick
Telephone: (910 ) 371-2552
ContactPerson: Poe Butler-Owner
INJECTION PROCEDURE (Briefly describe how the in4ection well(s) will be used.)
4 Wells will be used to house 3 /4 to l "f." diamerer p oly thy lene
piping in a cantinaus cJased-Jaap gearbenua] beat pump system
using plsia water as the heat exchang ing medium.
otable
G. WELL USE Will the injection well(s) also be used as the supply well(s) for either of the following:
(a)
(b)
GW-57 HP
The injection operation?
Your personal consumption?
(October 1994)
YES __ _
YES __
Page 1 of 4
NO X
NO X
I
H. CONSTRUCTION DATA (che......: one)
(2)
(3)
(4)
X
EXISTING WELL being proposed for use as an injection well. Provide the data
in (I) through (7) below to the best of your knowledge. Attach a copy of
Form GW-1 (Well Construction Record) if available.
4 PROPOSED WELISto be constructed for use as an injection well. Provide the
data in (1) through (7) below as PROPOSED construction specifications. Submit
Form GW-1 after construction.
Skipper's Well Drilling & Pump Ser., Inc.
Well Drilling Contractor's Name: ----------------------
NC Driller Registration number:
Date to be constructed: __ 9_/_2_5_/_9_5 __ Approximate depth: __ 2_o_o_f_t _______ _
Well casing: n/ a
(a) Type: Galvanized steel Black steel __ -_Plastic * Other(specify) __ ...,..,..· .......----
(b) Inside diameter: 3 / 4 ''inches; Wall giicknes§c hToD inches or schedule # I _b_0 __ _
(c) Casing depth: From--,-3" __ to._2_D~.ft (reference to land surface)
Casing extends above ground _,.....,...,_~--inches (must be at least 12 inches) *HDPE (ASTM D-3350
n /a Variance(attached) pipe and heat fusion
Cement grout 3 1 200 Bentonite grou t [ fittings
(a) Aroundinneror'"primary"casing: From. ___ to ___ ft. ft ~~..i~ eeul,.(.~ \l"JV-'d
(b) Around outer (pit) casing, if present From ___ to ___ ,
(5) Screens (if applicab1n)J a
(a) Type:--==------; Inner diameter:......,....--:---,,----·inches
(b) Depth: From ___ to ___ feet below land surface
(6) Gravel (if applicable): From n/ a to ___ feet below land surface
(7) N.C. State Regulations (fitle 15A NCAC 2C Section .0200) require the permittee to make
provisions for monitoring well head processes. A faucet on both influent (groundwater entering heat
pump) and effluent (water being injected into the well) lines is required. Will there be a faucet on:
(a) the influent line? yes_x __ no__ (b) the effluent line? yes_x_· _no __
NOTE: THE WELL DRILLIN'G CONTRACTOR CAN SUPPLY THE DATA FOR EITHER EXISTING OR
PROPOSED WELLS IF THIS INFORMATION rs UNAVAILABLE BY OTHER MEANS.
PROPOSED OPERATING DATA
(a) Injection rate: Average (daily) n/ a
(b) Injection volume: Average (daily) n /a
I.
(c) Injection pressure: Average (daily) n la
(d) Injection temperature: -Annual Average R/a
~allons per minute (gpm)
allons per day (gpd)
pounds/square inch (psi)
degreesF
J. INJECTION FLUID DATA
(1) Fluid source. If underground, from what depth, fonn8_~ and type of rock/sediment unit will the
fluid be drawn (e.g., granite, limestone, sand, etc.).
(2)
Depth: _____ ~Fonnation: _____ ~Rock/sediment unit: _____ _
(a) SOURCE WELL CONS1RUCTION Il'WORMATION (if different from injection well).
Attach a copy of Form GW-1 (Well Construction Record). If Fann GW-1 is not available,
provide the data iI\ part H.,,(1) through (7) of this aoolication fonn to the best of your
knowledge. City Ol. vJ'ilm111gtbn pota1ne water
Chemical Analysis of Source Water. The following chemical characteristics MUST accompany this
application: n/ a
pH ___ ; Total hardness ____ ppm (parts per million or mg/1); Iron ____ ppm;
Chloride ppm; Nitrate ppm; Coliform bacteria counts/lO0ml.
NOlE: Assistance in determining these values may be obtained by contacting (a) your local or county
health offical, (b) a commercial water-testing laboratory, (c) your well drilling contractor, or
(d) the regional Hydrogeologist, North Carolina Dept. of Environment, Health, and Natural
Resources.
GW-57 HP (October 1994) Page 2 of 4
f-
l
l
K. INJECTION -RELATED EQUIPMENT
Attach a diagram showing the engineering layout of the (1) injection equipment, and
(2) exterior piping/tubing associated with the injection operation. The manufacturer's brochure, if
derailed, should satisfy (1) above
Attach a scaled topographic map which extends one mile beyond the property boundaries of the
facility and indicates the location of the facility.
M. LOCATION OF WELL(S)
Attach a derailed, scaled trap of the site of the facility, showing "the location of and distances
between the proposed wells(s) (source wells and injection wells) and any waste (including hazardous
waste) treatment, storage or disposal facilities; buildings, property boundaries; surface water bodies;
and any other potential source of groundwater contamination. Additionally, indicate on the map the
direction and distance to existing wells (injection wells, water supply wens, dry wells, abandoned
wells) Iocated within 1,590 feet of the proposed injection wells). Include with the map a description
of each existing well, incorporating type, construction information, date drilled, and depth. Indicate
on the map at least two nearby reference points such as roads, road Intersections, streams, etc., and
identify them by US, NC or SR (county secondary roads) numbers or name. Label all features
clearly. Include a north arrow on the map to indicate orientation.
N. CERTIFICATION
"I hereby certify, tinder penalty of law, that I have personally examined and am familiar with the
information submitted in this document and all attachments thereto and that, based on my inquiry of
those individuals immediately responsible for obtaining said information, I believe that the information
is true, accurate and complete. I am aware that there are significant penalties, including the possibility
of fines and imprisonment, for submitting faLse information. I agree to construct, operate, maintain,
repair, and if applicable, abandon the injection well and all related appurtenances in accordance with the
approved specifications and conditions of the Permit.,,
(Signature of Owner or Authorized Agent)
Please supply a letter signed by the owner
authorizing the above agent, if authorized agent is signer.
O. CONSENT OF PROPERTY OWNER (Owner means any person who holds the fee or other property rights
in the well being constructed. A well is real property and its construction on land rests ownership in the
land owner in the absence of contrary agreement in writing.)
U the property is owned by someone other than the applicant, the property owner hereby consents to
allow the applicant to construct each injection well as oulined in this application and that it shall be
the responsibility of the applicant to ensure that each injection well conforms to the Well
Construction Standards (Title 15A NCAC 2C .02GO)
Name of Property Owner (Print): Wiltain Eton Housing, -Au the—izjL �
Mailing Address_ P. O. Box 899, Wilmington.NQ 28402
(Signature of Property Owner if Differcrit
From Applicant)
GW-57 HP (October 1994) Page 3 of 4

***QN3*+*
I
1
I '
IS' MIN ON CENTER
70— SPACING
SOIL 601 AT RAL . N PLA EG
FILL. _ , _ F. i � PPROXIM �E 3'' CiEP
f y 'y
• GL E qNr; PIPE
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' sENT NETS rlJ4.�,-60UDS
RQU
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4" 0 QRFHGLE
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t�URE
W1ELM'LN ON HOM 04 AUTH ITY PROJECT
3W HMO R I CoLi Tv k
TRAIM G/ EST ELL ANO
GEQTH RHAL A PUMR SYSTEM WLLL
f T 'PI AL OttAIL

IFra2it, rR . _
4�

--------.
WILMINGTON, N. C.
N3407.5—VV7 752.517.5
1970
RL40TOREVISED '.5'• G
LIMA 5452 ❑i NW —SERIES V842
Contours adiusted ad3a_an, =.c. _ar,;:r, ano:are�isn�
hydrograDhic features
w3
QUADRANGLE LOCATION
SCALE 1:24000
I p I MILE
1000 0 low 2000 4W JIM 5000 $Opp 7000 FEET
1 5 0 i KILOMETER
CONTOUR INTERVAL 5 FEET
NATIONAL GEODETIC VERTICAL DATUM OF 1929
DEPTH CURVES AND SOUNDINGS IN FEET —DATUM IS MEAN LOW WATER
THE RELATIONSHIP BETWEEN THE TWO DATUMS IS VARIABLE
THE MEAN RANGE Ox TIDE 15 APPROXIMATELY 3-6 FEET
THIS MAP COMPLIES WITH NA71ONAL MAP ACCURACY STANDARDS
FOR SALE BY V S. GEDLOGICAL SURVEY, RESTON. VIRGINIA 22Q92
A FOLDER DESCRIBING TOPOGRAPHIC MAPS AND SYMBOLS IS AVAILABLE ON REQUEST
ROAD CLASSIFICATION
Primary highway, Light -duty road, hard or
hard surface.-__ improved surface
Secondary highway,
hard surface.-..---__-.-_ Unimproved road_._
Trails— -------_
Interstate Route U. S. Route State Route
V,(:5 f7, faalage
Lt);!rnrv+I-,bm �00,

I
Ground source heating
and cooling. Cost effective,
environmentally responsible.
Even though the temperature of the air
varies dramatically through the year, the tem-
perature underground remains relatively
constant. ·
The basic principle of ground source
heating and cooling allows us to tap into the
earth's abundant supply of natural energy,
without depleting any resource.
Here's how the system works.
Lengths of high-strength plastic pipe are
buried beneath the earth's surface.
Water or an anti-freeze solution is circu-
lated through the pipes.
In winter, the liquid in the pipes absorbs
heat from the earth , brings it through the
system and into your home.
In summer, the ground source system
reverses itself. The unit pulls heat from your
home and places it in the ground.
Savings to you.
The Addison G-Series can save you up
to 60% on your home heating costs and up to
25% on your home cooling costs.
Even more savings.
This innovative system , through its heat
recovery process, will also heat your hot water.
Typically, the water heater is the second
highest user of electricity in your home. You
can save $30 to $40 monthly, depending on
your usage. ·
Longer-lasting, low-maintenance.
Because the Addison system is housed
within your home, it is protected from damaging
weather. In general, this ground source system
will outlast a conventional system by several
years.
The Addison G-Series is designed to
function with maximum output using few
moving parts. Consequently, it is far less likely
to break down or need repair, than a conven-
tional system .
Uniq1,1e automatic humidity
control cycle.
This Addison system has a dual control,
one setting for temperature, one for humidity.
If, for instance, your home has been cooled to
your preset temperature, but the humidity isn't
at your preset level , the unit keeps cooling but
continues on a low speed, wringing moisture
from the inside air.
Comfortable indoor environment.
Your family will enjoy a constan~ comfor-
table temperature year-round. The Addison
G-Series 1s extremely quiet. You won't be
aware of the unit in operation.
Clean, environmentally friendly.
The G-Series system works toward the
preservation of the environment. Renewable
heat is removed from the ground. No fossil
fuels are burned. The process does not
deplete the earth's resources.
i
!
i
I
I
I
r
...
8 Fully-
• insulated
cqbinet.
7 Unique
• Max-Kleen
filter.
6 Five
• recessed
access
panels.
4 Cabinet
• constructed
of G-9q
galvanized
steel ---
cleaned and
then coated
with zinc
phosphate
prior to
painting.
3 Cabinet .
• painted with
electro-
deposition
paint
process.
9 Lay-in blower
• assembly.
2 Sturdy
• corner P<?_St
construction.
10. ~~i-speed
blower motor.
1 Right or left
• return fi~ld
convertible.
17 Two preset
• low pressure
controls.
11 oversized
• copper tub~/
aluminum fin
evaporator.
13 lnsula~ed,
• over-sized
cu pro-nickel
co-axial
condenser.
15 Electro-
• mechanical
controls.
16 Scrollor
• rotary
compressors.
The Addison G-Series combines innovative
technology with quality materials and components.
Resulting in the ultimate in heating and cooling
capability for your home.
These Addison exclusive
features result in direct
benefits to you.
10 Right or left return
field convertible.
Benefit; flexible design
allows for most efficient
installation.
Sturdy corner post
construction.
Benefit: Rigid construction.
3 Cabinet painted with
■ electro-deposition paint
process.
Benefit: Painted on both
sides. Baked on automotive -
type finish. The best corrosion
protection.
Cabinet constructed of
■ G-90 galvanized steel cleaned
and then coated with zinc
phosphate prior to painting.
Benefit: Highest grade used
anywhere on HVAG products.
Provides for better paint
adherence.
Helps prevent corrosion.
Gasketed, swivel
. -water connections.
Benefit: Hand -tightened.
Reduced damage from over
tightening with wrench.
6 Five recessed access panels.
■ Benefit: Quick and easy
access to three sides.
Easily serviced.
7 Unique Max-Kleen filter.
• Benefit: Graduated
density media for
superior air filtration.
Fully -insulated cabinet.
■ Extra heavy 1 " thick insulation.
Benefit: Oulet operation.
Eliminates sweating,
[7 lay -in blower assembly.
7 • Benefit: Easy removal from
either side.
PSC multi -speed blower
191 ■ motor.
Benefit: Quiet, efficient
operation. Speed automatically
adjusted for improved humidity
control.
Overslzed copper tubes
aluminum fin evaporator.
Benefit; High efficiency
heat transfer, Long life.
Increased humidity control,
12. Bi-Fla expansion valve.
Benefit: Accurate refrigerant
metering in either directon.
Eliminates check valves.
Insulated, over -sized cupro-
nickel co -axial condenser,
Benefit: High efficiency
heat transfer. Best for ground
water application,
No sweating,
Heat recovery coil
1 . and controls standard,
pump optional.
Benefit: Reduces cost of
domestic hot water.
Increases cooling efficiencies.
Eliminates need to open
system to moisture contami-
nation or fluorocarbon
emissions.
IA■Electro-mechanical controls.
Benefit: Simple. Over-the-
counter replacement.
1. Scroll or rotary compressors.
Benefit: Higher efficiencies.
Dependability.
Two preset low pressure
controls.
Benefit: Choice of ground
water or earth coupled appli
cations.
ACM.
Water -source heating and cooling systems
are
u-
irbs
r,
iIr
I
.up
p to
Nat
ater.
lu
:)n
;ed
Sing
Stem
'al
cely
3n-
Irol,
lty.
d to
sn't
I but
re
Ifor-
i
e

8.
7.
6.
5.
4 .
3
BALL VALVE AND
FLANGE
PETE'S PLUG
BARB X INSERT BRASS ADAPTER
4-inch LONG RADIUS ELBOW
90a STREET ELL (BRASS)
CIRCULATION PUMP
FIGURE 4.28: Heat Pump and Ground Heat Exchanger Hookup
FLEXIBLE BARB
HOSE / ADAPTER
BALL VALVE
THREADED
� 1 � PE TRANSITION
t� FITTING
"10
v
U}
W
n
0
0

SINGLE UNIT INSTALLATION
1) Integral Ball Flange Valve Located
on Pump Mount Allows Flushing of
Earth Heat Exchanger with Blocked
Flow through Heat Pump
2) Flow Meter or Pressure Ports Are
Required to Monitor Heat Pump
Performance
3) Reverse Return on Headers
HP
11�
EARTH COIL DEPTH --SADDLEFITTINGiBELOW FROST ZONE1
SEPARATE IF POSSIBLE
900 ELBOW
f ' --1
1/2' HDPE, SDR-11 OR
HDPE
BELL REDUCER
I 1
r314" HDPE
'12' PB,
CTS, SDR 13.5
1 114' X 314"
1/ SCH 40
OR
Circulating Pump
PB-RED G"ELL
i' F'ORCTS,
4C1
S D R 13.5
Charging and Fiushing Valves
/]
U-BEND
i Flow Sensing Ports
Y 3 REQ'D
BELL REDUCER
Note:
1 112' X 1 114"
1.
Design the system so that all air can be
HEADERS
removed by purging (see Section 7).
LOOPS
2.
Expansion tank may be required on large or
multiple -unit systems.
FIGURE 4.24: Layout and Details of a Typical COGS Heat Pymp System
a�-
I

Vanguard Plaq" s, Inc.
0
+ VANGUARD GEO-PRODUCTS" POLYETHYLENE PIPE AND FITTINGS
FOR GROUND -COUPLED APPLICATIONS
Vanguard GEO-PRODUCTS provide installers with the most versatile pipe and fittings package available in the
ground -coupled heat pump industry. Thousands of miles of Vanguard GEO-BLACK high density polyethylene
pipe have been installed in systems across America. No other company offers more choices of pipe sizes,
fusion fittings, and accessory equipment for the ground -coupled market than Vanguard Plastics.
4F1\ The products contained in this catalog are manufactured and intended only for their specific uses in non -
potable applications involving the transport of water, water and glycol, water and GS-4 HTF, or other aqueous
liquids shown not to adversely affect the performance of GEO-BLACK pipe and fittings.
All products shown in this catalog are designed and made to meet written national standards. To find out if
$ Vanguard products are approved for your applications, contact the Vanguard representative or applicable code
enforcement bureau in your area.
It is important to know the advantages and drawbacks of the various types of fittings and realize, as with all
piping materials, failures are most likely to occur at the fitting joint.
Polyethylene is not resistant to ail chemicals. Gasoline, oil and hydrocarbons can damage this material. Strong
acids and oxidizing agents, such as excessive levels of chlorine, must be avoided.
Polyethylene piping and components must be installed in accordance with good plumbing practices, applicable
code requirements, and current installation instructions provided by Vanguard Plastics, Inc. upon request. It is
the responsibility of the contractor or installer to determine that the selection of polyethylene pipe and other
components are the proper ones for the intended application, and that all installers observe installation
practices recommended by Vanguard Plastics, Inc. If there is any doubt whether water conditions or other
conditions likely to be encountered in the intended application may be harmful to PE, call a Vanguard technical
representative at 1-316-241-6369.
No express warranties are made or extended by Vanguard except by its separate and product specific Limited
Warranties, copies of which will be furnished upon request.
CUD
SPECIFICATIONS:
ASTM D-3035 PE Pipe Specification
ASTM D-2447 PE Pipe Specification
ASTM 0-2683 PE Fittings Specification
ASTM D-3350 PE Material Specification
=. .. r. 4.'y, -.7 �i -� �--T--'.Fs- �';Y ^ '�'+I r. •...ice-�. " ,.w

rs
GEO-BLACK HOPE POLYETHYLENE PIPE
GEO-SLACK piping is intended and recommended for use in ground -coupled applications involving the
transfer of neat energy between the earth and water, water and glycol solutions or other liquids shown not to
adversely affect polyethylene's performance. GEO-BLACK is manufactured from PE3408 resin with a cell
classification of PE345434C and is specified in ASTM 0-3350 and Is specifically designed to be connected
with WS-OD, PE3408 socket heat fusion fittings. It is also acceptable to connect GEO-BLACK with appropri-
ate butt fusion fittings and equipment.
GEO-SLACK meets applicable ASHRAE, ASTM and IGSHPA national standards. GEO-BLACK can withstand
continuous use at temperatures as high as 100 degrees F and intermittent use up to 120 degrees F GEO-
BLACK is flexible, resistant to electrolysis, corrosion, ultraviolet light degradation, and many chemicals.
Through the use of socket heat fusion, user benefits Include quickness and ease of installation.
Limitations of GEO-BLACK tubing include the following:
■ Install in accordance with IGSr`fPA recommendations, applicable code requirements and current
installation instructions provided by Vanguard Plastics.
■ Do not expose to direct flame or temperatures, including internal water temperatures, which continu-
ously exceed 100 degrees F.
■ Limit water pressure to the maximum limitation marked on the tubing.
■ Vanguard GEO-BLACK must be installed and inspected in accordance to ASTM-d2774, Consult IGSHPA
recommendations for any variations in these backfiil procedures.
GEO-BLACK POLYETHYLENE FUSION FITTINGS
GEO-BLACK fittings are designed for use in ground -coupled water source heat pump systems where the
quality and durability of polyethylene is desirable. GEO-BLACK heat fusion fittings are to be installed only by
persons certified in fusion either through the Vanguard Heat Fusion Certification Program or IGSHPA certified
instructions. Fittings are manufactured from the same high -density PE 3408 polyethylene resin as GEO-
BLACK ground -coupled piping.
0

fib — Section Four
4
Earth Coil Type:
Water Flow:
Pipe Sizes:
Bore Lengths:
Pipe Lengths:
Vertical - Single U-Bend
Parallel
314- or 1-inch loops, 1 1/2-
or 2-inch headers
175 to 225 feet/ton
350 to 450 feet/ton
FIGURE 4.5: Parallel Vertical Ground Heat Exchanger
m

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