DWQ-2024-003406

Attachment A
General Location Map of the NGLEP NGL Storage Project,
Millard County

Attachment B
Map of the NGLEP NGL Storage Project
Area of Review (AOR) including the Class III Permit Area
FIGURE:DESCRIPTIONDATENo.
DRAWN BY:
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CHECKED BY:
DATE:
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DRAWING DATA
UIC PERMIT BOUNDARY 3165 E. MILLROCK DR, SUITE 330
HOLLADAY, UTAH 84121
PHONE: [phone]
www.westernenergyhub.com
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UIC PERMIT BOUNDARY
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FIGURE:DESCRIPTIONDATENo.
DRAWN BY:
DESIGNED BY:
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DIMENSIONS:
DRAWING DATA
UIC PERMIT BOUNDARY 3165 E. MILLROCK DR, SUITE 330
HOLLADAY, UTAH 84121
PHONE: [phone]
www.westernenergyhub.com
ACES DELTA
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PROJECT BOUNDARY
AREA OR REVIEW
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ACES Delta Solution Mining, LLC
New UIC Boundary
Commencing at the Southeast corner of Section 22, Township 15 South, Range 7 West,
Salt Lake Meridian; thence North 89°17'52" West 2655.50 feet along section line to the
South quarter corner of said Section 22; thence North 89°19'02" West 2654.79 feet
along section line to Southwest corner of Section 22; thence North 00°44'02" East
2642.33 feet along section line to the West quarter corner of said Section 22; thence
North 00°45'42" East 2432.13 feet along section line to its intersection with the southerly
right-of-way line of Brush Wellman Road; thence South 77°07'04" East 874.24 feet
along said right-of-way; thence South 70°46'11" East 12168.97 feet along said right-of-
way; thence South 52°19'38" West 5959.27 feet; thence North 88°31'10" West 2433.34
feet to the East quarter Corner of Section 27, Township 15 South, Range 7 West, Salt
Lake Meridian; thence North 89°17'28" West 5301.39 feet along quarter section line to
the West quarter corner of said Section 27; thence North 00°54'37" East 2642.81 feet
along section line to the POINT OF BEGINNING. Contains 62716123 square feet or
1439.764 acres, more or less.
LESS AND EXCEPTING - Commencing at the Southwest corner of Section 23; Township
15 South, Range 7 West, Salt Lake Meridian; thence North 00°18'23" East 1111.06 feet
along section line to the POINT OF BEGINNING; thence North 64°34'46" East 73.91 feet;
thence South 73°49'13" East 279.34 feet; thence South 00°00'19" West 263.15 feet;
thence North 89°42'45" East 146.57 feet; thence North 41°28'46" East 177.23 feet; thence
North 89°34'42" East 225.12 feet; thence South 64°31'09" East 305.28 feet; thence South
00°23'34" East 717.88 feet; thence South 65°16'04" East 235.54 feet to a point on the
northerly line of Section 26, T15S, R7W, SLM; thence continuing in said section 26 South
65°16'04" East 207.43 feet; thence South 01°23'26" East 1169.62 feet; thence West
401.20 feet; thence North 4.28 feet; thence North 22°43'27" West 467.23 feet; thence
South 79°11'34" West 288.07 feet; thence North 51°06'56" West 329.45 feet; thence
South 56°39'43" West 187.05 feet; thence South 89°59'34" West 122.48 feet to a curve
to the right having a radius of 209.79 feet, a central angle of 45°07'59" and a chord that
bears North 67°26'27" West 161.02 feet; thence along said curve northwesterly an arc
distance of 165.26 feet to a point on the easterly line of Section 27, T15S, R7W, SLM;
thence continuing in said Section 27 along the arc of said curve to the right having a
radius of 209.79 feet, a central angle of 20°06'21", and a chord that bears North 34°49'17"
West 73.24 feet; thence North 24°46'07" West 122.64 feet; thence North 15°42'36" East
172.98 feet; thence North 00°34'51" East 174.69 feet; thence South 87°34'12" West
258.30 feet; thence North 01°33'30" East 219.21 feet to the southerly line of Section 22,
T15S, R7W, SLM; thence South 89°50'49" East 239.59 feet along section line; thence in
Said Section 22 North 52°10'01" West 120.19 feet; thence North 30°04'41" West 97.90
feet; thence South 80°30'37" West 242.82 feet; thence North 77°33'20" West 185.78 feet;
thence North 24°20'04" West 190.91 feet to a curve to the right having a radius of 350.00
feet, a central angle of 30°50'30" and a chord that bears North 08°54'49" West 186.13
feet; thence along said curve northerly an arc distance of 188.40 feet; thence North
06°30'26" East 200.06 feet; thence North 06°22'38" West 309.11 feet; thence North
06°38'54" East 184.56 feet; thence North 43°13'03" East 145.85 feet; thence North
85°51'44" East 204.23 feet; thence South 61°59'15" East 237.38 feet; thence South
07°46'26" East 147.72 feet; thence South 89°44'16" East 110.58 feet; thence North
64°34'46" East 98.93 feet to the POINT OF BEGINNING. Contains 3388367 square feet
or 77.786 acres, more or less.

3/20/2024
File: UICBndry-REV4-2024.ndpScale: 1 inch= 1597 feet
Tract 1: 1439.7641 Acres, Closure: s80.5633w 0.01 ft. (1/999999), Perimeter=34454 ft.
Tract 2: 77.7828 Acres, Closure: s15.0334e 0.02 ft. (1/418887), Perimeter=9691 ft.
n00°44'02"e
2642.33
n00°45'42"e
2432.13
5
s70°46'11"e12168.97
s 5 2 °1 9'3 8 "w
5 9 5 9 .2 7
n88°31'10"w
2433.34n89°17'28"w
5301.39
n00°54'37"e
2642.81
Tract Data and Deed Calls: File= UICBndry-REV4-2024.ndp
Tract 01: 1439.7641 Acres, Closure: s80.5633w 0.01 ft. (1/999999), Perimeter=34454 ft.
Tract 02: 77.7828 Acres, Closure: s15.0334e 0.02 ft. (1/418887), Perimeter=9691 ft.
Tract 02: 77.7828 Acres, Closure: s15.0334e 0.02 ft. (1/418887), Perimeter=9691 ft.
1: /n89.1752w 2655.5
2: /n89.1902w 2654.79
3: n00.4402e 2642.33
4: n00.4542e 2432.13
5: s77.0704e 874.24
6: s70.4611e 12168.97
7: s52.1938w 5959.27
8: n88.3110w 2433.34
9: n89.1728w 5301.39
10: n00.5437e 2642.81
11: @0
12: /n00.1823e 1111.06
13: n64.3446e 73.91
14: s73.4913e 279.34
15: s00.0019w 263.15
16: n89.4245e 146.57
17: n41.2846e 177.23
18: n89.3442e 225.12
19: s64.3109e 305.28
20: s00.2334e 717.88
21: s65.1604e 235.54
22: s65.1604e 207.43
23: s01.2326e 1169.62
24: s90w 401.2
25: n0e 4.28
26: n22.4327w 467.23
27: s79.1134w 288.07
28: n51.0656w 329.45
29: s56.3943w 187.05
30: s89.5934w 122.48
31: curve right radius 209.79 arc 165.26 chord dir n67.2627w chord dist 161.02
32: n34.4917w 73.24
33: n24.4607w 122.64
34: n15.4236e 172.98
35: n00.3451e 174.69
36: s87.3412w 258.3
37: n01.3330e 219.21
38: s89.5049e 239.59
39: n52.1001w 120.19
40: n30.0441w 97.9
41: s80.3037w 242.82
42: n77.3320w 185.78
43: n24.2004w 190.91
44: curve right radius 350 arc 188.4 delta 030.5030 chord dir n08.5449w chord dist 186.13
45: n06.3026e 200.06
46: n06.2238w 309.11
47: n06.3854e 184.56
48: n43.1303e 145.85
49: n85.5144e 204.23
50: s61.5915e 237.38
51: s07.4626e 147.72
52: s89.4416e 110.58
53: n64.3446e 98.93

Attachment C
Corrective Action Plan for Artificial Penetrations into Injection
Zone within Area of Review
As of the effective date of this permit modification there are no
wells requiring corrective action.

Attachment D
Construction and Cavern Development Plan

UIC Technical Report
January 24, 2017 53
PART G
Injection Well Construction Plan
Prior to receiving an authorization to drill an injection well in the Permit Area, Magnum will
submit to the DWQ for approval by the Utah Division of Water Quality Director a dedicated
Cavern Construction and Development Plan (CCDP) for injection wells being drilled for the
specific type of storage product (natural gas, CAES, refined products, crude, etc.). This
requirement is in accordance with UIC Permit condition Part III D(2). The CCDP will comply
with the federal and state regulations 40CFR146.32 and R317-7-10.1(B) for the construction of
Class III injection wells, state rules R649-3-6, R649-3-13, R649-3-7.4 for drilling and casing
testing, and the industry standard API RP 1170 for the development of natural gas storage caverns.
Magnum will also comply with permit conditions that pertain to the drilling and construction of
the well and to cavern development.
The purpose of the CCDP is to outline clear processes and procedures for the construction of
storage caverns wells (drilling and injection well installation) and development (solution mining)
of storage caverns within the Permit Area. The CCDP will provide detailed methods for cavern
well construction to include a typical injection well design that will be adapted to the location of
each individual injection well at the time of construction. It should be noted that the typical design
was previously determined in consultation with both the DWQ and the DOGM, the agency with
joint oversight over the drilling of the injection wells and sole oversight over the operations of the
storage caverns (Eyermann 2010; PBESS 2010). In addition, this design has been used for the
successful construction of the five injections wells that are now owned and operated by NGL
Supply Terminal Solution Mining, LLC.
The typical design includes a well head, five cemented casings, and two hanging casing strings .
A schematic for this design is provided in Figure H-1.1 of Part H. The injection well is designed
to provide a strong foundation for mechanical integrity of both the cavern well and storage cavern
during storage operations as well as protect against the potential for groundwater contamination.
The cavern well casing design includes three casings designed to protect the USDWs: one surface
casing; two water protection casing strings, one cemented in the freshwater zone and the other to
the top of the salt; two casing strings cemented into the upper section salt; and, two hanging strings.
The two guiding principles of the cavern well design are: 1) to support injection and production
from the completed storage cavern at rates between 2,500 gpm and 6,000 gpm; and, 2) sizing the
casing to allow for the use of hanging casing strings for solution mining at rates between 2,500
gpm and 6,000 gpm. The various casing strings included in the typical design are therefore sized
to withstand foreseeable collapse, burst and tensile forces that might act upon the casing due to
these rates.
In addition, the CCDP will include procedures for the typical installation of an injection well which
will be adapted at the time of construction to meet the specific requirements of the well location
within the Permit Area. The installation procedures will consist of a general drilling plan with
well condition, welding, and cementing protocols and materials specifications. The CCDP will
also include a solution mining plan that will described in Part I. Once approved by the Director,
UIC Technical Report
January 24, 2017 54
the CCDP will become an enforceable attachment to the UIC Permit and any subsequent changes
will have to be authorized by the agency.

UIC Technical Report
January 24, 2017 55
PART H
Injection Well Construction Details
As stated in Part G, prior to receiving an authorization to drill an injection well in the Permit Area,
Magnum will submit to the DWQ for approval by the Utah Division of Water Quality Director a
dedicated CCDP for injection wells being drilled for the specific type of storage product (natural
gas, CAES, refined products, crude, etc.). This requirement is in accordance with UIC Permit
condition Part III D(2). The CCDP will include: a schematic for the injection well casing design;
a one-line P & ID diagram; a typical cavern well piping plan; and, a storage wellhead schematic.
Figure H-1.1 depicts an injection well casing design schematic for a typical Magnum injection
well. This “typical” design was the basis for the five operating injection wells that have been
successfull y constructed within the salt structure. As described in Part G, the design was
determined in consultation with the DWQ and DOGM and includes a well head, five concentric
casings cemented to the ground surface, and two hanging strings used for the injection and
withdrawal of the stored product. Two of the five casings are drilled directly into the salt and
cemented to the surface in order to ensure continuous protection of the groundwater bearing units
and USDWs overlaying the salt structure. This design meets all federal and state requirements
and industry standards.

UIC Technical Report
January 24, 2017 56

UIC Technical Report
January 24, 2017 57
PART I
Injection Well Operation Plan and Procedures
Prior to receiving an authorization to drill a cavern in the Permit Area, Magnum will submit to the
DWQ for approval by the Utah Division of Water Quality Director a dedicated Cavern
Construction and Development Plan (CCDP) for injection wells being drilled for the specific type
of storage product (natural gas, CAES, refined products, crude, etc.). This requirement is in
accordance with UIC Permit condition Part III D(2). The CCDP will comply with the federal and
state regulations 40CFR146.32 and R317-7-10.1(B) for the construction of Class III injection
wells, state rules R649-3-6, R649-3-13, R649-3-7.4 for drilling and casing testing, and the industry
standard API RP 1170.
Once approved by the Director, the CCDP will become an enforceable attachment to the UIC
Permit and any subsequent changes will have to be authorized by the agency. As described in Part
G, the purpose of the CCDP is to outline clear processes and procedures for both the construction
of storage caverns wells (drilling and injection well installation) and development (solution
mining) of storage caverns within the Permit Area. The CCDP will provide detailed methods for
the typical solution mining plan that will be adapted to the location of each individual injection
well at the time of construction. It should be noted that a typical design has been previously
approved and used for the successful construction of the five injections wells under the DWQ UIC
Program that are now owned and operated by NGL Supply Terminal Solution Mining, LLC.
The typical solution mining plan was been developed using a cavern simulation modeling program
such as SalGas or SaltCav3D that simulates mining asymmetrically around the well. Both are
industry-accepted cavern simulation programs developed for the Solution Mining Research
Institute. There are other industry accepted models that can also be used. The model simulates
the growth of the cavern during the solution mining process. The basic inputs for the model
include: an average insoluble content; the average radii of the well, the depth of the water injection
and brine production strings, the depth of product level, water injections rates, and the duration of
mining to reach the desired cavern volume or capacity (Eyermann 2010).
In addition to the typical solution mining plan in the CCDP, Magnum will create specific solution
mining plans for each individual injection well at the time of construction. These individual plans
will be adapted from the typical to account for the location of injection wells within the salt
structure. The general solution mining process includes first injecting a “blanket” material into
the injection well from the surface to a prescribed level below the final cemented casing shoe. This
material is typically nitrogen or diesel and will keep the solution mining activity below the shoe
to protect the integrity that shoe and to control the shape and rate of the development of the cavern.
Fresh water is then injected through the tubing and circulated in the injection well hole to dissolve
salt. Once the fresh water is saturated with salt, the resulting brine is withdrawn from the injection
well and stored in an evaporation pond at the surface. When the design volume of the cavern is
complete, solution mining will be stopped and a Mechanical Integrity Test (MIT) will be
completed to assure the integrity of the cavern. A successful MIT will allow the cavern to be
placed into commercial service under DOGM jurisdiction. The solution mining process will be
continuously monitored so that modifications to any of the solution mining plan parameters can
UIC Technical Report
January 24, 2017 58
be made to account for unanticipated or non-symmetrical growth. Part J provides the details for
the monitoring and reporting requirements under the UIC Permit.
DWQ-2019-002564

Attachment E
Monitoring, Recording, and Reporting Plan

UIC Technical Report
January 24, 2017 59
PART J
Monitoring, Recording, and Reporting Plan
Prior to receiving an authorization to drilling a cavern in the Permit Area, Magnum will submit to
the DWQ for approval by the Utah Division of Water Quality Director a dedicated Monitoring,
Recording, and Reporting Plan (MRRP) for injection wells being drilled for the specific type of
storage product (natural gas, CAES, refined products, crude, etc.). This requirement is in
accordance with UIC Permit condition Part III E(2). The MRRP will comply with federal and
state regulations 40CFR144.54 and R317-7-10.3(B) and industry standard API RP 1170 for the
development of natural gas storage caverns. Magnum will also comply with permit conditions
that pertain to the drilling and construction of the well and to cavern development.
The purpose of the MRRP is to outline clear processes and procedures for the monitoring, reporting
and recording of solution mining activities for storage caverns within the Permit Area. The MRRP
will include detailed methods and type of equipment necessary to monitor, document, and report:
the minimum and maximum operating pressures; the development of the cavern volume and shape;
the brine/nitrogen interface and pressure, volume and temperature of the nitrogen blanket; the
characterization of the injected fluids; the daily flow rate, saturation, pressure and temperature of
injected water; the daily flow rate, saturation, pressure and temperature of produced brine; and, the
weekly analysis of the composition of produced brine.
In addition, the MRRP will include detailed methods for the mechanical integrity testing of
injection wells during drilling (casing pressure tests), prior to solution mining, and prior to the
DWQ providing authorization to initiate storage operations. Once storage operations of a cavern
have commenced, mechanical integrity will continue to be tested periodically in accordance with
the requirements set forth by the DOGM. The schedule for the required reporting will also be
included in the MRRP.
Once approved by the Director, the MRRP will become an enforceable attachment to the UIC
Permit and any subsequent changes will have to be authorized by the agency.
DWQ-2019-002565

Attachment F
Well and Cavern Closure and Abandonment Plan

Plan for Plugging and Abandonment
of Class III Solution Mining Wells
and Caverns before Gas Storage

The following procedures are provided as a general guideline. Actual plugging measures would
be submitted in advance to DWQ (prior to commencement of gas storage).
1. At least 45 days before the planned plugging, Magnum will notify the DWQ Executive
Secretary of the proposed plugging with a Well Condition Report and a well-specific
Plugging and Abandonment Plan.
2. The Well Condition Report will include a discussion of the following:
a. The results of the well's most recent mechanical integrity test,
b. The location of any leaks or perforations in the casing,
c. The location of any vertical migration of fluids behind the casing, and
d. The adequacy of casing cement bonding across the salt formation, as determined from
cement bond logs run at the time of well construction or just prior to well
abandonment.
3. All nitrogen or other blanket material will be removed and the cavern will be filled with
saturated brine water.
4. All free hanging tubing will be pulled from the well.
5. The exact depth to the bottom of the cemented production casing will be determined.
6. A drillable plug capable of supporting a cement plug will be installed in the cemented
casing with the bottom of the plug within 10 feet of the end of the casing.
7. All cement plugs to be Class G cement with no additives and slurry weight of 14.5
pounds per gallon or more.
8. The entire wellbore from the bridge plug to surface will be filled with cement.
9. In the event the cemented casing is determined to be leaking, the casing will be
perforated at the level of the leak and cement squeezed into the perforations.
10. An alternative technique which could be used involves setting the following plugs.
a. Bottom plug: A 300-foot plug from the plug at the bottom of the production
casing upward.
b. Surface casing plug: A 150-foot plug from 75 feet below the bottom of the
surface casing upward.
c. Top plug: A 50-foot plug from 50 feet below surface grade upward to surface.
d. The casing between each of the plugs shall be filled with a noncorrosive mud
slurry of at least 10 pounds per gallon weight.

11. Upon completion of the plugging operation, all reports will be filed in accordance
with DWQ rules as applicable.
PUBLIC COPY
Magnum UIC Class III Permit Modification
October 20, 2011 61
Part L – 16-inch Injection Well Plugging and Abandonment Plan
The following procedures are provided as a general guideline. Actual plugging measures
will be submitted in advance to DWQ (prior to commencement of product storage) or
DOGM (after commencement of storage operations) for approval.
1.Form DOGM-9 will be submitted (after commencement of product storage) for
procedural approval.
2.All stored product will be removed and the cavern will be filled with saturated
brine water.
3.All free hanging tubing will be pulled from the well.
4.The exact depth to the bottom of the cemented production casing will be
determined.
5.A drillable plug capable of supporting a cement plug will be installed in the
cemented casing with the bottom of the plug within 10 feet of the end of the
casing.
6.The following plugs will be placed. All cement plugs will be Class G cement with no
additives and the slurry weight will be 14.5 pounds per gallon or more.
a.Bottom plug: A 300-foot plug from the plug at the bottom of the production
casing upward.
b.Surface casing plug: A 150-foot plug from 75 feet below the bottom of the
surface casing upward.
c.Top plug: A 75-foot plug from 75 feet below surface grade upward to
surface.
7.The casing between each of the plugs shall be filled with a non-corrosive mud
slurry of at least 10 pounds per gallon weight.
8.An alternative technique that could be used involves filling the entire wellbore with
cement.
9.Upon completion of the plugging operation, all reports will be filed in accordance
with DWQ or DOGM rules as applicable.
DWQ-2019-002566

Attachment G
Financial Responsibility