LOST CREEK HYDROLOGIC TEST PLANKM HORIZON 5-SPOT TEST PATTERN

PRODUCTION / INJECTION TEST

Lost Creek ISR, LLC3424 Wamsutter Crooks Gap RoadWamsutter, Wyoming 82336 USA

LOST CREEK PROJECT

SWEETWATER COUNTY, WY

June, 2015

Prepared By:.U r-Energy

5880 Enterprise Drive, Suite 200Casper, Wyoming 82609 USA

Phone: (307) 265-2373Fax: (307) 265-2801

TABLE OF CONTENTS

1.0 INTRODUCTION .........................................................................1.1 Background...................................................................... 1

1.2 5-Spot Hydrologic Test Objectives .............................................

2.0 SITE CHARACTERIZATION ........................................................... 22.1 Hydrostratigraphy................................................................ 22.2 Overlying Units: HJ Horizon and Sagebrush Shale .......................... 2

2.3 KM Horizon Production Zone and Underlying Horizons ..................... 2

2.4 MN Shale and N Horizon........................................................ 3

2.5 Structure......................................................................... 3

2.6 Previous Testing ...................................................... .......... 4

3.0 MONITOR WELL LOCATIONS, INSTALLATION, AND COMPLETION.......... 43.1 Well Locations ................ ...................................... :........... 4

3.2 W ell Installation and Com pletion .............................................. 4

4.0 5-SPOT HYDROLOGIC TEST DESIGN AND PROCEDURES ................... .54.1 Test Design ............................................................. ,.......... 5

4.2 Pump Test Equipment, Injection Manifold and Monitoring .................. 6

5.0 BAROMETRIC PRESSURE MONITORING ........................................... 7

6.0 REFERENCES. ........................................................................... 8

KMHorizon 5-Spot Test PlanLC.ISRJune 2015

.TABLE OF CONTENTS

Figures.

1-12-13-14-1

Location Map, KM Horizon 5-Spot TestStratigraphic Profile, Location Map5-Spot Test LayoutSchematic, Flow Controls and Monitoring

Tables

3-1 Well Information, KM Horizon 5-Spot Test

Plates

Plate 1 Stratigraphic Profile

Appendices

Append ix A Well Completion Reports

KM Horizon 5-SpotrTest; PlanLC ISRJune 2015 i

1.0 INTRODUCTION

The purpose of this work plan is to describe the objectives and procedures for conductingan extraction/Iinjection test, with minor bleed, at the existing 5-spot test pattern located atthe eastern end of Mine Unit 1 (MU1). The test focus is on defining the vertical drawdownresponse for use in calibrating a model. The purposed test is intended to simulate currentMU1 operating conditions.

Initially, LC ISR had discussed with NRC the use of tracers to evaluate vertical flare.However, a more comprehensive evaluation of tracer use revealed that full tracer breakthrough would require a test duration of 30 to 60 days and the addition of an exorbitantamount of tracer. Given the rapidly advancing MU1 operation and the time required toobtain regulatory approval, LC ISR opted for the following alternative test approach.

1.1 Background

LC ISR plans to develop and extract uranium from mine units within the KM Horizon of theBaffle Spring Formation via ISR. Initial production from the KM Horizon will occur within anarea of the Lost Creek Project currently designated as Resource Area 3. This resourcearea underlies the eastern end of Mine Unit 1 and extends eastward (see Figure 1-1).

With reference to Resource Area 3, significant mineralization has been identified in the KMHorizon, occurring between depths of approximately 430 to 590 feet below ground surface(ft bgs). Average thickness of the KM Horizon is approximately 115 feet and total thicknessof the composite KM, L and M Horizons ranges from approximately 260 to 330 feet. Basedon the results of testing and stratigraphic analysis (detailed in Lost Creek Hydrologic Test,Composite KLM Horizon Regional Pump Test, October 2011 [Petrotek, 2013]), the threeabove-referenced Horizons are in hydraulic communication.

In 2012, LC ISR installed a 5-Spot, extraction! /injection test pattern along with observationwells in the overlying and underlying horizons. The purpose of the 5-Spot hydrologictesting was to assess the level of hydraulic communication between the KM Horizon(Production Zone) and the overlying HJ Horizon, as well as the underlying L, M and NHorizons in a typical commercial Scale production pattern. Two types of tests wereperformed: 1 ) an extraction test followed by, 2) an extraction with injection test performedwithout bleed (Lost Creek Hydrologic. Test, KLM Horizon 5-Spot Testing, October 2012,2013 [Petrotek]).

1.2 5-Spot Hydrologic Test Objectives

LC I SR intends to essentially duplicate the 2012 extraction!/ injection test, but incorporate a1 % bleed to simulate actual operating conditions.

The objectives of the KM Horizon 5-spot hydrologic test are to:

1. Characterize pattern-scale aquifer properties within the KM Horizon Production

Zone;

KM Horizon 5-Spot Test PlanLc ISRJune 20151

2. Evaluate the degree of hydraulic communication, under simulated productionconditions, between KM Horizon and the overlying HJ Horizon and the deeperunderlying N Horizon, as well as evaluate the degree of hydraulic communicationamongst the KM, L and M Horizons;

3. Develop vertical and horizontal hydraulic control data in the KM Horizon for inputinto and calibration of a model; and

4. Determine site-specific flow hydraulics that will likely manifest during typical ISRproduction operations.

2.0 SITE CHARACTERIZATION

2.1 Hydrostratigraphy

LC ISR utilizes the following nomenclature for the hydrostratigraphic units of interest withinthe Battle Spring Formation in the Lost Creek area (see Stratigraphic Section on Plate 1sideba r).

2.2 Overlying Units: HJ Horizon and Sagebrush Shale

The KM Horizon is bounded above by the confining unit identified as the Sagebrush Shale.The Sagebrush Shale is continuous throughout the Lost Creek Project, and ranges from 3to 32 feet thick within the resource study area.

Above the Sagebrush Shale is the HJ Horizon, which represents the overlying aquifer inthis test. The HJ Horizon is continuous throughout the Lost Creek Project and ranges from100 to 151 feet thick, with an average thickness of approximately 120 feet. (Note: the HJHorizon is also the primary production zone in Mine Unit 1, which partially overlapsResource Area 3, Figure 1-1).

2.3 KM Horizon Production Zone and Underlying Horizons

The Production Zone evaluated as part of this investigation is the KM Horizon. The KMHorizon is continuous throughout the Lost Creek Project with a total thickness thataverages approximately 115 feet in the test area.

There is no confirmed areally extensive confining unit that isolates the KM, L, M and NHorizons from each other. Rather, there is a series of interfingered layers of mudstone,siltstone and shales (see Plate 1). Some of these have historically been referred to as "NoName Shale", K-Shale, LM Shale and MN Shale. Previous pump tests have evaluatedsome of these as potential lower aquitards to the KM Production Zone. These beddingunits may show continuity over large areas, but regional continuity has not beendemonstrated. Thus, they cannot be considered truly confining units on a regional scale.However, due to the interfingering nature and low permeability of these units, test resultsconfirm that they limit (attenuate with depth) and/or restrict vertical flow.

KM Horizon 5-Spot Test PlanLC 1SRJune 20152

.2.4 MN Shale and N Horizon

The MN Shale is a zone of interfingered layers of mudstone, siltstone, and shale thatseparates the M Horizon from the deeper N Horizon (Plate 1). Based on geologic data, theMN Shale is not considered a true regional confining unit, as continuity is not observed overa regional scale. The MN Shale appears to limit and/or restrict vertical flow due to theinterfingering of finer grained and lower permeability units. It ranges from approximately 10to 40 feet thick, with a typical thickness of about 10 to 20 feet. As mentioned above,regional continuity of the MN Shale is not certain.

Beneath the MN Shale is the N Horizon and based on limited data, the total thickness ofthe N Horizon is approximately 100 feet. No isopach maps have been constructed for thisaquifer due to the limited number of borings that have penetrated through the entire NHorizon.

The hydrologic gradient in the KM Horizon is. 0.0063 ft/ft in a southwesterly direction. Aseries of single and multiple well pump testS yielded transmissivity values that range from195 to 2,012 gpd/if with :an average of 740 gpd/ft (99 ft2 lday).

In the 5-spot test area, the piezometric surface in the confined KM Horizon is at 192 feetbelow ground surface while the top of the KM Horizon is 516 feet below ground surface.This means the ground-water head is 324 feet above the top of the KM horizon. Assuminga fracture gradient of 0.7 psi per foot, the fracture pressure at the completion interval is 138psi ([0.7 psi/ft - 0.433 psi/if] x 516 ift) = 138 psi. A safety factor of 90% .is typically applied,so the .injection pressure at the well head will be limited to 124 psi.

2.5 Structure

In the Lost Greek Project area, the Battle Spring Formation dips to the west atapproximately three degrees. The Lost Creek Fault is oriented in a west- southwest to east-northeast direction that bisects MU1. The main fault traverses, diagonally across thenorthwestern portion of Resource Area 3, and is downthrown to the south. A subsidiarysplay fault splits from the main fault to the south for a limited distance in the central portionsof Resource Area 3 (see Figure .1-1).

The nearly vertical, nOrmal fault and associated minor splay have been recognizedapproximately 600 feet north-northwest of the 5-spot test site. The fault has approximately70 to 80 feet of vertical displacement at the eastern end of its trace. As the fault travelswest the displacement decreases until the fault cannot be located. The associated minorsplay has a maximum vertical displacement of 20 feet. The area between the splay andthe main fault is a downthrown block. There is no surface expression of the faults.

A stratigraphic profile encompassing the 5-spot test area is presented as Plate 1. Thecircular shaped profile location is shown on Figure 2-1.

KM ,Horizon 5-Spot Test PlanLcIS5RJune20153

2.6 Previous Testing

As part of the characterization activities for the NRC License and LQD Permit to Mineapplications, LC ISR and Petrotek previously performed multiple in-house pump testsincluding the 2011 Composite KLM Horizon Regional Pump Test (Petrotek, 2013) and the2012 Composite KLM Horizon 5-Spot Testing (Petrotek, 2013).

Of primary relevance to the LC ISR's proposed 2015 testing program is Petrotek's 2012, 5-spot pattern testing program that incorporated both extraction and production I injectiontests as described below:

o*÷ A 3-day, 28 gpm extraction test indicated varying degrees of hydrauliccommunication between the KM Horizon and the underlying L and M Horizons,confirming that the entire composite KM, L and M Horizon are hydraulicallyconnected. Water level responses (< 5-inches) observed in the overlying HJHorizon and the deeper underlying N Horizon were attributed to barometric pressurechange.

o** Following the extraction test and short recovery period, a 3-day, 25 gpm extraction /injection test was performed without subtracting a bleed. Production water wasinjected into only two of the four injection wells due to limited injectivity in wellsKPW-IA and M-UKMI. The test results indicated no drawdown response in any ofthe overlying or underlying observation wells.

3.0 MONITOR WELL LOCATIONS, INSTALLATION, AND COMPLETION

3.1 Well Locations

All wells utilized during the 2012 Petrotek tests are located in the 5-spot test area ofResource Area 3 (Figure 1-1). A small scale enlargement of the 5-spot test area ispresented on Figure 3-1.

3.2 Well Installation and Completion

Since injection wells KPW-1 A and M-UKM1 did not function as designed and were not usedin the final 2012 extraction / injection test, LC ISR proposes to install two new injectionwells (5S-KM5 and 5S-KM6) and convert the original injection wells to observation wellsafter re-developing and performing a mechanical integrity test (MIT) on both wells (seeFigure 3-1 ).

In an attempt to better define the vertical pressure gradient within the 110 foot thick KMHorizon, LC ISR proposes to install one new lower KM Horizon monitor well, completed justabove the K Shale, screened from 610 to 620 feet bgs.

All new wells will be constructed with 4.5-inch inside diameter PVC casing. The wells willbe developed using standard water well techniques including but not limited to: an

KM Horizon 5-Spot Test PlanLC ISRJune 2015 4

application of Aqua-Clear to disperse drill mud, air lifting, pumping, swabbing, and surging.All test and observation wells must pass a MIT before being utilized. Existing wellinformation related to location, construction, completion interval, and initial water levels areprovided in Table 3-1. Proposed well completion data for the replacement injection wellsand new observation well are also shown on Table 3-1 in blue lettering,

Well Completion Reports for existing 5-spot pattern wells are contained in Appendix A.

4.0 5-SPOT HYDROLOGIC TEST DESIGN AND PROCEDURES

The following section details the proposed 5-spot test design and procedures planned forthe 2015 test. Details of testing are summarized below.

4.1 Test Design

The KM Horizon 5-spot hydrologic test will be conducted in a manner designed to meet theobjectives outlined in Section 1 .2.

The general testing procedures will be as follows:

1, All wells used in the 2012 5-spot test will be re-developed by swabbing and/or airlifting.

2, In-Situ LevelTROLL® data-logging transducers (vented) will be installed in wells torecord changes in water levels during testing. LC staff will verify setting depths andhead readings with manual water level measurements;

3. LevelTROLL transducers will measure and record pre-test background water levelsand barometric pressure for a period of time prior to the commencement of testing toensure stability (largely due to the proximity of active ISL mining patterns);

4. Record water levels and barometric pressure throughout pre-test, pumping, andrecovery periods.

The 5-spot test will be conducted in three steps as described below:

Step 1: Extraction Test- Since two new injection wells will be added to the original2012 5-spot pattern, as well as one new observation well, a short-term, constantrate pump test will be conducted at the central extraction well 5S-KM3 todemonstrate hydrologic communication with the new wells. The test duration will beintentionally short; only long enough to observe a drawdown response thus provinghydraulic interaction. No other objective is intended. Pumped water will bedischarged to the ground surface some distance from the test pattern.

Step 2:" Balanced Extraction and Injection Test - A balanced, constant rateproduction I injection test will be conducted by pumping extraction well 5S-KM:3 and

KM Horizon 5-Spot Test Plan.LC 1SRJune 20"15 5'

injecting the pumped water equally, if possible, into each of four injection wellsminus a 1% bleed. To simulate current Mine Unit 1 operating conditions, LC ISRplans to initially pump at approximately 35 gpm and inject at 34.65 gpm. The bleedwill be discharged to the ground surface. The test duration is estimated to last 3 to 5days based on 2012 test results. In any case, the test will be run long enough tomeet the stated test objectives.

Step 3: Out-of-Balance Extraction and Injection Test - Once the Step 2 testobjectives have been met, LC ISR proposes to intentionally run the pattern slightlyout-of-balance ("1 0%) by cutting back the extraction rate and supplementing waterto the injection circuit thereby over pressurizing the aquifer for a short period of time.The purpose of running out-of-balance is to generate an excursion condition andobserve the resulting pressure gradients that develop. This information will beuseful in providing a second calibration condition for the model. The out-of-balancetest duration will depend on the resulting response(s).

Recovery monitoring will commence after the last test and continue until baselineconditions are re-established.

4.2 Pump Test Equipment, Injection Manifold and Monitoring

Aquifer testing. will be performed utilizing a Grundfos 40375-21 (7.5 HP), 460V, 3-phaseelectrical submersible pump (or equivalent) powered by a portable diesel generator. Thepump will be set at an approximate depth of 500 feet (approximately 40 feet off the bottom).Historically, the static depth to water in 5S-KM3 is approximately 192 feet, thus providingfor approximately 308 feet of head above the pump.

Flow from the pump will be controlled via a manual ball valve placed at the terminus of awellhead metering assembly as shown on Figure 4-1. Discharge flow monitoringequipment will include a 1.5-inch NU FLO MCII turbine meter. The meter displays total flow(in gallons) and instantaneous flow rate (in gallons per minute [gpm]). The need for aTemporary Discharge Permit is not anticipated based on past experience, but LC ISR willobtain WDEQ-LQD concurrence. Discharge water (bleed) will be land appliedapproximately 500 feet down-gradient from the 5-spot pattern via a 2-inch high-densitypolyethylene (HOPE) pipe.

During the injection phase of testing, flow from pumping well 5S-KM3 will be conveyed toan injection manifold via 1.5-inch galvanized pipe attached to a 2-inch flexible dischargeline. The injection manifold will consist of 2-inch and 1-inch pipe, fabricated by LC ISRpersonnel. The 2-inch flexible discharge line running from the pumping well will connectinto one, 2-inch tee, with each end connected into two additional 2-inch tees, with reducersto 1-inch lines. Each of the four 1-inch lines will be fitted with 1-inch PVC ball valves forcontrolling flow to the individual injection wells. The ball valves will be positioneddownstream of the turbine flow meters in the configuration shown on Figure 4-1.

Water levels will be measured and recorded with In-Situ Level TROLL® pressure transducer

KM Horizon 5-Spot Test PlanLC ISIRJune 2015 6

dataloggers. The pressure rating for the transducers will range from 32 to 100 psi, andprogrammed to record depth to water measurements at specific time intervals during allphases of testing (pre-test background monitoring, pumping and recovery periods).

The following is the proposed horizon-specific summary of water level monitoring locationsby completion interval:

o Overlying HJ Horizon - 1 well (5S-HJi)

o KM Horizon - 9 wells, including:

a the central extraction well (5S-KM3), four corner injection wells (5S-KM1, 5S-KM2, 5S-KM5 and 5S-KM6), two former injection wells (KPW-1A and M-UKM 1), an intermediate observation well located interior to the 5-spot pattern(5S-KM4), and one lower KM Horizon observation well (5S-KM7 [new]) alsolocated interior to the 5-spot pattern adjacent to the L Horizon observationwell.

o Underlying. L Horizon - I well (KM U-I)

o Underlying M Horizon - 1 well (M-MI)

o Underlying N Horizon - 1 well (5S-NI)

In addition to monitoring water levels in the above-referenced wells, some periphery wellscompleted in the KM, L, M and N Horizons may also be monitored to assess the radius ofinfluence generated by the test.

LC ISR personnel will collect daily downloads after instrument installation for review andQAIQC for pre-test background monitoring and all phases of 5-spot hydrologic testing.

5.0 BAROMETRIC PRESSURE MONITORING

If significant variations in water levels due to barometric pressure change are suspected,then data may require correction to remove fluctuations in water levels associated withchanges in barometric pressure. An In-Situ BaroTROLLc® will be installed prior to testingand used to measure barometric pressure during all test phases.

KM Horizon 5-Spot Test PlanLC ISRJune 20157

6.0 REFERENCESPetrotek Engineering Corporation, 2009. Lost Creek Regional Hydrologic Testing - Mine

Unit 1, North and South Tests; prepared for Lost Creek ISR, LLC October 2009.

Petrotek Engineering Corporation, 2012. Lost Creek Hydrologic Test, Composite KLMHorizon 5-Spot Testing, October 2012; prepared for LC ISR LLC April 2013.

Petrotek Engineering Corporation, 2013. Lost Creek Hydrologic Test, Composite KLMHorizon Regional Pump Test, October, 2011; prepared for LC ISR LLC April 2013.

KM Horizon 5-Spot Test PlanLC ISRJune 20158

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KM Horizon 5-Spot PatternProduction I Injection Test

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30____0_____....______ I Pattern Outline 5-Spot Test Layout

feet L o---

June 23. 2015

Injection Welt - 5S-KM.Ground Level: 6945.;Injection Zone: 525' -

Well Test Pressure:-545' 8GS/16PS

Injection Well - 5S-KM2Ground Level: 6945.7 ftInjection Zone: 520' - 540 BGSWell Test Pressure: 160 PSI

Recovery 'VGround Le•Recovery 2Well Test F

V~ell - 5S-KM3vel: 6945.3 ft.one: 520' - 540' BGSpressure: 160 PSI

{ • .

Injection Well - 5S-KM5Ground Level: 6945 ftInjection Zone: 520' - 540' BGSWell Test Pressure: 160 PSI

--H• -- Flow Meter

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(:J Level Indication

Injection Well - 5S-KM6Ground Level: 6944 ftInjection Zone: 520' - 54Y' BGSWell Test Pressure: 160 PSI

SLost Creek ISR, LLC

Casper. Wyoming

Figure 4-1Schematic

Flow Control andMonitoring

Not to Scale June 2015

Table 3-1. Well Information, KM Horizon 5-Spot Test

Zoe NAD83 NAD83 Drostanc E le O lvDildT Casd Casing ScreenJ ToaPumping (ft amsl) (ft amsl) (ft bgs) (fpth IDs ( In) (tera b S) reengtI_______j Zoe(fet) (feet) Well (ft) (ft__bgs)_(in)_(ft b) (feet)

5S-HJ1 Observation HJ Horizon 2,214,013.36 595,593.04 31 f6,945.32 6,945.83 480 460 4.5 460-480 20

5S-KM1 Injection KM Horizon 2,213,950.03 595,640.32 71 6,945.65 6,946.20 540 525 4.5 525-545 205S-KM2 Injection KM Horizon 2,214,046.09 595,609.82 68 6,945.68 6,946.02 540 520 4.5 520-540 205S-KM3 Pumping KM Horizon 2,213,985.84 595,579.11 0 6,945.34 6,945.87 540 520 4.5 520-540 205S-KM4 Observation KM Horizon 2,213,954.65 595,562.81 35 6,944.89 6,945.59 540 520 4.5 520-540 205S-KM5 Injection KM Horizon 2,213,9161 595,539' 80' TBD TBD 540' 520' 4.5 520-540' 20'5S-KM6 Injection KM Horizon 2,214,008' 595,541' 84' TBD TBD 540' 520' 4.5 520-540' 20'5S-KM7 Observation KM Horizon 2,214,008' 595,541' 48' TBD TBD 625' 61.0' 4.5 610-620' 10'

KPW-IA Observation KM Horizon 2.213,927.10 595,549.83 66 6,945.49 6,947.58 540 520 5 519-539 20M-UKM1 Observation KM Horizon 2,214,016.65 595,516.07 70 6,944.03 6,945.22 550 520 4.5 520-540 20

KMU-1 IObservation L LHorizon 2,214,011.07 595,543.24 44 16,944.61 6,946.00I 740 1650 14.5 650-675 25

M-M1 Observation IM Horizon 2,213,988.52 595,525.89 53 16,943.94 6,945.82I 780 I 750 I4.5 I750-770 I 20

5S-N1 Observation N Horizon 2,213,940.21 595,615.33 58 16,945.551 6,946.29I 900 I850 I4.5 I850-870 20

ft bgs = feet below ground surfaceft amsl =feet above mean sea levelin = inchesS= Estimated parameter

TBD = To Be Determined after constructionBlue lettering indicates new wells

KM Horizon 5-Spot TestLC ISRJune 2015 Page 1 of 1

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APPENDIX AWell Completion Reports

5S-H J1

Vf"ti•d $oi 1"-5O°

Lost Creek ISR, LLC

-___-• 5 -J WELL COMPLETION REPORT

' -• • • ~WELL L it5SHJ SEO LA194709 Dote Drilled:7Z25/1U

C bL=,=•,Location:E 2.214.014 I N 595 593 (NAD 83)

•-2 • , uesmt,=•cyGround Elev.. 6945'. Measure Point Elv 972

) SmT TD: 480' Hole Dia.: 7-7/8"..

.i~CASED to: 460Z Casing: PVCIDR17iD: 4.5" 0D:. 5"

... •GROUT: Portland Cement - Type I/Il,-• -:-. •Pumped thru casing, displaced to surface with water

•--' •COMPLETION Aquifer:, LHJ Sub-Horizonlx Is'•msrO°•Static Water Level: Depth 173.' Eev-. 6773.9

__......__ (1',0/14/12)

":' •-UNDERREAM: Blade Dio:J10.5"• ~Intervals: fromA460'ta 480 l~ength .20Z

_ -from • to._.__../ength

-'• "- •SCREEN UINER ASSEMBLYo ,•Description Depth Elev. LengthIL -:From -To /From -To

,•, ~~~K-Docker strina 453' 453' 642.9 64' 7,"Slotted PVC 460 480 6455' • .. 20'

s~umsl•L=•ySCREEN SPEClRCA11ONS:

'-"• •. •FILTER PACKING: N/A

*-•Volume: ...... (bags)(ft 3 ) Sand Specs.

•"it •WELL STIMULATlON: Method Ailrift

. •Yield: (• Moderate / Poor

~35 gpm

5S-HJ1

Veri~ol :Scole: 1"-5•0

5S- KM 1

Lost Creek ISR, LLC

WELL COMPLETION REPORT

WELL #.5S-KM1. SEO#~ 194711 Dote Orilled:7/2/1

Location:E 2.213.950 /N 595.640 (NAD 83)

Ground Elev, 6946 Measure Point Elev: 69¢.2'...

TO: 540 ft, Hole Dia.: 7-7l.Z"

CASED to:..525 Casing: pvC: SDR17 lD:4.5"OD: 5"

GROUT: Portland Cement - Type I/flPumped thru casing, displaced to surface with water

COMPLETION Aquifer: UKM Sub-Horizon

Static Water Level: Depth 192.3" Elev:.Z1..(10/4/12)

UNDERREAM: Blade Dia: !0.5"

Intervals: from. 525 t o__..•,/le ng th .. 20'.

from___ to.___ /lnt _____

SCREEN LINER ASSEMBLYDescription Depth Elev. Length

From - To / From - To

K-packer string 518' 5 25' 714. 7421' 7'...Slotted PVC 525' 545' 6421' 6401' 20'

SCREEN SPECIFICATIONS:Slot: 0.030" Composition 3" Slotted PVC

FILTER PACKING: N/A

Volume: _(bags)(ft3 ) Sand Specs. _

Method'

WELL STIMULATION: Method Airlift

YieldcS/ Moderate / Poor

40 gpm

-TO 540

5S-KM1

5S-KM2

Lost Creek ISR, LLC

WELL COMPLETION REPORT

WELL # 5S-M2 SEQ fJ 194712 Dote Drilled:7Z/19/11

Locotion:E 2.214r045 /N 595.610 (NAD 83)

Ground Ele . 694'.. Measure Point E~e•. 694.0'

TD: 540 Hole Olo.: 7-7/8

CASED to: 520 Casing:EPVC DR17 D:.5 OD 5

GROUT: Portland Cement - Type I/IU

Pumped thru casing, displaced to surface with woter

COMPLETION Aqulfer: UKM Sub-Horizon

Static Water Level: Depth .2•IElev2 675.9'(3/15/13)

UNDERREAM: Blade Di:.10Z.5" ..Intervals: from. 520tQL._t.4.(.,/Length .. 20Z

from. .... _ ln t

SCREEN UNER ASSEMBLYDescription Depth Elev. Length

From - To / From - ToK-oocker strlno 523 5~20' 643 • 7'ZSlotted PVC 520' 540'Q A42L' 646 .20'

SCREEN SPECIRiCATIONS:Slot: 0.030' Composition 3" Slotted PVC

FILTER PACKING: N/A

Volume: . ( bogsXft 3 ) Sand Specs.

Method: ,

WELL STIMULATION: Method Airlift

Yleld.• /Y Moderate / Po

35 gpm

ID540KM

5S-KM2

5S-KM3

Vertcal ~al: 1"50'Lost Creek ISR, LLC

............ 5SKM3WELL COMPLETION REPORT

..........•: •,d L,•WELL # 5SK. SEO /5 19471.3 Date Drilled:7/2/1

i •. Ri~tcGround Elev:. •4L.' Measure Point Elev: 6945.5

Ginmo :. oSA1__.._.4 TO: • Hole Dia.: LZ-7/8"_________ONI ___ CASED to:•2Z Casing: PVC SDR17 ID:4.5 OD:..5"

! • • • GROUT: Portland Cement - Type I/fl

i'ii us1•,• j Pumped thru casing, displaced to surface with water

MU5TI, oayCOMPLETION Aquifer: UKM Sub-Horizon

i!::: ,._.. .•os~,• IStatic Water Level: Depth !I91Z.Elev:.•.,....-(0/6/11

•; ••L'•UNOERREAM: Blade Dia: 10.5"!- ! SN0SO•,Intervals: from 520L to&..._/Ien g t h2

,. - from_ ta .. /length

UUO-:t:- sndySCREEN LINER ASSEMBLY•.Ti- •.. ••Description Depth Elev. Length

o'• • _ From - To / From - To•OT• i• K-packer string 51.3' 520' 6432. 6425" 7'

¢ .. ,.iSlatted PVC 520' 540' 6425' 6405' 20'

i~i :•' SAOSTOr solySCREEN SPECIFICATIONS:

________Slot: 0.030" Composition 3" Slotted PVC

r . : L . •FILTER PACKING: N/A

;• L ."• _ S•O~O•ZVolume:. .(bags)(ft3) Sand Specs.

~Method:, SANSTON••hal

-•• •:WELL STIMULATION: Method Airlift

k•• •5 ..... aUOm•.I=•Yield: Good / 0 / Poor

S___OSTO _ 25 gpm

: " UOSTONE. sondy 3

" -ro 540'

5S-KM3

5S-KM4

Ytkd Scd~ 1-SO'Lost Creek ISR. LLC

WELL COMPLETION REPORT

WELL # 5S-KMi SEO U2 194714,.. Dote Drilled:.Z/2/I

Locotion:E 2.213.955 /N 595.563 (NAD 83)

Ground Elev. 6946 Measure Point El•6966

TD: 540'f~Qt. Hole DIao: 7-7/8"Z.

CASED to: •QZ Casing: PVC SDR17 ID: 4.5" OD: 5".

GROUT: Portland Cement - Type I/lIPumped thru casing, displaced to surface with woter

COMPLETION Aquifer'. UKM Sub-Horizon

Static Water Level: Depth .•22Elev-I•1r(3/15/13)

UNDERREAM: Blade Dio: 1.5".Z

Intervals: from 520Qto_50" ength 20'

from. tcL_._..Aength

SCREEN UNER ASSEMBLYDescription Depth 0lev. Length

From - To / From - ToK-akrsrn 513' 520Z 642 6425'Slotted PVC 520 54. 64.25' 645 20Z

SCREEN SPECIRiCATIONS:

Slot: O.03D" Composition 3" Slotted PVC

FILTER PACKING:. N/AVolume: .... (bogs)(ft3) Sand Specs.

Method:

WELL STIMULATION: Method Airlift

Yleld:(~)t Moderate / Poor

35 gpm

-m 540

5S-KM4

KPW-IA

V=rtical ScQIe I"=50' KPW-1ALost Creek ISR, LLC

WELL COMPLETION REPORT

WELL # KPW-IA SEO LL 18959 Date Drilled:3/19/O9Location:E 2.213.927 / N 595.550 (NAD 83)

Ground Elev: 645 Measure Point Elev: 6947.6

TO: 540 Hole Dia.: 7-7/8".

CASED to:..520' Casing: PVC SDR17 lD:A.5"OD:. 5"

GROUT: Portland Cement - Type I/ilPumped thru casing, displaced to surface with water

COMPLETION Aquifer: UKM Sub-Horizon

Static Water Level: Depth 19.8' ~LElevx:.Z•~(11/15/10)

UNDERREAM: Blade Dig: 1.fi"L

Intervals: from. 52'.to...0/length .20Z.from. tia..../length _

SCREEN UNER ASSEMBLYDescription Depth Elev. Length

From - To / From - To

K-Docker string 513' 520' 6432'6425' 7'

Screen 520' 540' 6425' 6405' 20'

SCREEN SPECIRiCATlONS:Slot: 0.020" Composition 3" PVC Screen (wrapped)

FiLTER PACKING: N/A

Volume: _(bags)(ft 3 ) Sand Specs.

Method;

WELL STIMULATION: Method Airlift

Yrieldc•~ Moderate / Poor

100 gpm

KPW-1A

KMU-1Lost Creek ISR. LLC

WELL COMPLETION REPORTVertco Sclo~e 1"-50+

KMU-1

WELL # KMU-1 SEQ //198 Date Drilled:.3/6/09Location:E 2.214.011 / N 595.543 (NAD 83)

Ground Elev: 6j45. . Measure Point Elev: 6947.4-

TD: 740' Hole Dia.: 7-7/8".

CASED to: 650 Casing:EPV& SRt17: ID:.5"OD: 5"

GROUT: Portland Cement - Type I/Il

Pumped thru casing, disploced to surface with water

COMPLETION Aquifer: L Horizon

Static Water Level: Depth.._.2g.j•iElev:, 6749.8'

(3/15/13)

UNDERREAM: Blade Dia:J1.5" .

Intervals: frorn. 65'ta 675'/L~ength ... 25'.

from____ t o...__......../len9 th

SCREEN LINER ASSEMBLYDescription Depth E8ev.

From - To / From - ToK-packer unit 643' 650 • 6295'

Screen 650' _675' 6295' 6270'

Length

7'

25'

SCREEN SPECIFICATIONS:Slot: 0.020• Composition 3" PVC Screen (wrapped)

FILTER PACKING: N/A

Volume:. _(bags)(ft3

) Sand Specs. _

Method;

WELL STIMULATION: Method Airlift

Yield: Not recorded

KMU-1•ID /40

5S-N1Lost Creek ISR, Lt.C

WELL COMPLETION REPORT

WE•LL L• ti.. . E •LLU .2I•1U Date Ur~lled:Z//LU/

Locotion:E 2.213.940 /N 595.615 (NAD 83)

Ground Ele. fi4L' Measure Point Elect. 6947.7.

TO: 900 Hole Die.: 7-7/8

CASED to: 850 Casing: PV .. R1 )LD:4,5 00:...L

GROUT: Portland Cement - T~rle I/flPumped thru casing. dieplaced to surface with water

COMPLETION Aquifer: N Horizon

Static Water Level: Depth..2Qi1LEiev~Z3L..•.._(3/15/13)

UNDERREAM: Blade Dio: 10.Z.5" ..Intervals: from• LtaA87Z /ength ~20Z-

from...to........ength

SCREEN UNER ASSEMBLYDescription Depth Eley. Length

From- Ta / From -To

Screen 850 • 6096" 6076.'

SCREEN SPECiIRCATIONS:Slot: O.03O..0.• Composition 3" PVC Screen (wrapped)

FILTER PACKING: N/A

Volume: ....... (bogs)(ft3) Scnd Specs,. _

MethodT

WELL STIMULATION: Method Airlift

Yield:( Goo.7 Moderate i Po

60 gprn

5S-N1