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HomeMy WebLinkAboutDRC-2025-002710299 South Main Street, Suite 1700 ▪ Salt Lake City, Utah 84111 (801) 649-2000 ▪ Fax: (801) 880-2879 ▪ www.energysolutions.com August 20, 2025 CD-2025-166 Mr. Doug Hansen, Director Division of Waste Management and Radiation Control P.O. Box 144880 Salt Lake City, UT 84114-4880 Subject: Groundwater Quality Discharge Permit Number UGW450005 (GWQDP): New Monitoring Wells As-Built Report Dear Mr. Hansen: Attached is the As-Built Report for the new 2025 Evaporation Pond compliance monitoring wells: GW-158 and GW-159. In accordance with Groundwater Quality Discharge Permit Number UGW450005 (GWQDP) Part II. L., Monitoring Well “As-Built” Reports will be submitted to the Director within 60 days of final completion of each well. GW-158 and GW-159 were completed on June 25, 2025 and slug testing was performed on June 27, 2025. Should you have any questions regarding this submission please feel free to contact me at 801-649-2060. Sincerely, Mathew R Schon Manager, Groundwater and Environmental Program I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. Geosyntec Consultants, Inc. 215 South State Street, Suite 500 Salt Lake City, UT 84111 PH +1 801-853-8185 www.geosyntec.com SLC1119 Evaporation Pond Monitoring Wells Installation 13 August 2025 Mr. Mathew Schon EnergySolutions, LLC 299 S Main Street, Suite 1700 Salt Lake City, Utah 84111 Subject: 2025 Evaporation Pond Monitoring Wells Installation Dear Mr. Schon, Geosyntec Consultants, Inc (Geosyntec) is pleased to submit this document summarizing the installation, development, and slug testing of two groundwater monitoring wells near the soon to be constructed evaporation pond at the EnergySolutions Clive, Utah facility (Site or Facility). Well installation and well development activities were completed June 23 through 25, 2025. Slug testing was completed on June 27, 2025. Prior to initiating field work, a Site-specific Task Hazard Analysis Plan was prepared, site-specific radiation training was taken by the Geosyntec and Subcontractor personnel, and utility clearance was conducted. Division of Water Rights Application In advance of drilling activities, a Non-Production Well Construction application was submitted to Utah Division of Water Rights (DWR) on May 21, 2025. The application included the planned locations and proposed dimensions of each monitoring well. The locations of the monitoring wells are presented on Figure 1. On May 27, 2025, DWR granted approval to proceed with installation of the two proposed monitoring wells. Following completion of the well installations, the final signed applicant card was submitted to DWR. Completed applications, forms, and correspondence from DWR are provided in Attachment A. Well Installation Two monitoring wells (GW-158 and GW-159) were drilled and developed in accordance with the Geosyntec May 19, 2025 proposal. Each well was installed with hollow-stem auger drilling equipment to total depths of 43 feet below ground surface (BGS). The monitoring wells were completed with 2-inch PVC casing, 15-foot 0.010-inch screen, 10/20 silica sand filter pack, and bentonite seal. A 4-foot by 4-foot concrete apron at ground level was constructed around each well. A 10-inch wide, 3-foot-tall steel protective casing was placed above the apron to protect the well. Following installation, Geosyntec personnel developed each well and extracted a minimum of 10 well casing volumes. Additionally, water quality parameters were monitored for stabilization. Investigation Derived Waste (IDW) was containerized and disposed of by EnergySolutions. Well Mr. Mathew Schon August 2025 Page 2 SLC1119 Evaporation Pond Monitoring Wells Installation construction logs and development data for each well are provided in Attachment B. EnergySolutions personnel surveyed the locations and elevations of the completed wells. Slug Testing Slug testing was conducted in accordance with ASTM D4044-9 to estimate the hydraulic conductivity in the two wells. Slug testing equipment used at each well consisted of a water level meter, slug, and transducer. Both rising and falling head tests were conducted at each well. The transducer data from the slug tests was pre-processed using Microsoft Excel and analyzed with AQTESOLV, a commercial software program for analysis of slug tests created by HydroSOLVE of Reston, Virginia. Slug test data was evaluated using the Bouwer-Rice (1976)[1] straight-line method to estimate hydraulic conductivity. The hydraulic conductivities derived from the slug test analysis are summarized in Table 1, and AQTESOLV outputs are provided in Attachment C. Hydraulic conductivity of silty sand can range from 0.1 to 100 feet per day. The estimated hydraulic conductivities from these slug tests fall within that range. Table 1: Estimated Hydraulic Conductivity from Slug Tests Well Hydraulic Conductivity (feet per day) Slug In Slug Out Average Test 1 Test 2 Test 1 Test 2 GW-158 1.24 1.32 1.45 1.46 1.37 GW-159 0.76 0.67 0.74 1.26 0.86 Notes: n/a = not applicable Closing This report provides a summary of the drilling, construction, development and slug testing of the two monitoring wells (GW-158 and GW-159) installed near the soon to be constructed evaporation pond. We appreciate the opportunity to provide environmental consulting support to EnergySolutions. Please contact us if you have any questions or comments regarding the information presented herein. [1] Bouwer, H., and R.C. Rice, 1976.Water Resources Research, Vol. 12 no. 3. Mr. Mathew Schon August 2025 Page 3 SLC1119 Evaporation Pond Monitoring Wells Installation Sincerely, Garrett Rigard Project Manager FIGURES Figure 1 – Well Locations Map ATTACHMENTS Attachment A: Division of Water Rights Application and Forms Attachment B: Well Installation Documents Attachment C: Slug Testing Data FIGURES K C a s k e y LEGEND FIGURE 1 Site Location 2700 South 25th West Avenue Tulsa OK 74107 Client Logo MONITORING WELL LOCATION MONITORING WELL LOCATIONS EVAPORATION POND ENERGY SOLUTIONS, LLCCLIVE, UTAH July 2025SOURCE: ENERGYSOLUTIONS GW-158 GW-159 ATTACHMENT A Division of Water Rights Application and Forms State of Utah DEPARTMENT OF NATURAL RESOURCES Division of Water Rights SPENCER J. COX JOEL FERRY TERESA WILHELMSEN Governor Executive Director State Engineer/Division Director DEIDRE M. HENDERSON Lieutenant Governor May 27, 2025 Energy Solutions LLC 299 South Main St Ste 1700 Salt Lake City UT 84111 Dear Applicant:RE: Monitor Well#: 2516001M00 EXPIRATION DATE: November 27, 2025 Regarding your request to drill 7 Monitor well(s), the anticipated drilling depths will exceed the minimum regulated and reporting depth of 30 feet, thereby requiring permission from the Division of Water Rights to proceed with this project. The specifications outlined in your non-production well project application meet the State Engineer's requirements and permission is HEREBY GRANTED. Therefore, this letter is your authorization to proceed with the construction of the well(s) in accordance with those specifications and with respect to the following provisions: 1)Small diameter casing is to be used in the construction of the well(s) and no more water is to be diverted than is necessary to determine the quality of the groundwater by obtaining representative samples as required by the project. 2)The well(s) must be drilled by a currently licensed Utah driller and must be drilled in a manner consistent with the construction standards cited in the Utah State Administrative Rules for Well Drillers (R655-4 UAC). 3)The enclosed Driller (START) Card form must be given to the licensed driller for his submittal prior to commencing well construction. The other enclosed form is the Applicant Card. It is YOUR RESPONSIBILITY to sign and return this Applicant Card form to our office upon well completion. 4)At such time as the well(s) are no longer utilized to monitor ground water or the intent of the project is terminated, the well(s) must be permanently abandoned in a manner consistent with the Administrative Rules (R655-4 UAC). 5)THIS PERMIT MAY NOT BE THE ONLY AUTHORIZATION NEEDED TO DRILL A WELL. The applicant is responsible for obtaining other permits/authorizations from federal agencies, other state agencies, and/or local jurisdictions as applicable. Moreover, if the applicant is not the landowner, it is the applicants responsibility to ensure that approvals/permissions have been obtained to trespass and drill a well(s) on the property. THIS PERMIT DOES NOT GIVE AUTHORIZATION TO TRESPASS ON PRIVATE PROPERTY. NOTE: Please be aware that your permission to proceed with the drilling under this authorization expires November 27, 2025. Sincerely, Jim V. Goddard, P.G., Well Drilling Program JG:ep 1594 West North Temple, Suite 220, PO Box 146300, Salt Lake City, UT 84114-6300 telephone (801) 538-7240 - facsimile (801) 538-7467 - www.waterrights.utah.gov APPLICANT CARD for Non Production Well Application: 2516001M00 IMPORTANT: THIS CARD MUST BE COMPLETED, SIGNED AND RETURNED BY THE WELL OWNER/APPLICANT AS SOON AS THE WELL IS DRILLED BY A LICENSED UTAH WELL DRILLER. EXPIRATION DATE: November 27, 2025 OWNER/APPLICANT: _____________________________________________________________________________ Energy Solutions LLC MAILING ADDRESS: ______________________________________________________________________________ 299 South Main St Ste 1700, Salt Lake City UT 84111 PHONE NUMBER: ________________________________________________________________________________ -- WELL LOCATION: ________________________________________________________________________________ You are authorized to drill 7 Monitor wells. SEE BELOW. WELL UTM COORDINATES: ________________________________________________________________________ WELL ACTIVITY: NEW(X) REPLACE( ) REPAIR( ) DEEPEN( ) WELL COMPLETION DATE: ________________________________________________________________________ NAME OF DRILLING COMPANY/LICENSEE: __________________________________________________________ _______________________________________________________7/14/25__________________________ Owner/Applicant Signature Date NOTICE TO APPLICANT: COMPLETE AND RETURN THIS PORTION UPON FINAL WELL COMPLETION. DO NOT GIVE THIS CARD TO LICENSED WELL DRILLER. - YOU MUST RETURN IT. STATE OF UTAH DIVISION OF WATER RIGHTS Phone No. 801-538-7416 - FAX No. 801-538-7467 Monitor WELL LOCATIONS: 7 (1) N 453' E 1064' from S4 Cor, S29, T 1S , R 11W, SLB&M (2) N 169' W 367' from E4 Cor, S32, T 1S , R 11W, SLB&M (3) N 652' W 37' from SE Cor, S29, T 1S , R 11W, SLB&M (4) N 316' W 48' from SE Cor, S29, T 1S , R 11W, SLB&M (5) N 36' W 1066' from SE Cor, S29, T 1S , R 11W, SLB&M (6) S 205' E 749' from N4 Cor, S32, T 1S , R 11W, SLB&M (7) N 619' W 15' from E4 Cor, S32, T 1S , R 11W, SLB&M COMMENTS: ____________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ START/APPLICANT CARD INSTRUCTIONS:First, for each well, you must give a Driller (Start) Card to licensed driller with whom you contract to construct your well. Second, it is your responsibility to sign and return this Applicant Card to this office immediately after completion of the well. CAUTION: There may be local health requirements for the actual siting of your well. Please check with the proper local authority before construction begins. See enclosed sheet addressing construction information. *** FOR OFFICE USE ONLY *** WIN: PROCESS DATE: 6/25/2025 Direct Push Services (License #807) DRILLER (START) CARD for Non Production Well Application: 2516001M00 IMPORTANT: THIS CARD MUST BE RECEIVED BY THE DIVISION OF WATER RIGHTS PRIOR TO THE BEGINNING OF WELL CONSTRUCTION. EXPIRATION DATE: November 27, 2025 START CARDS FOR MULTIPLE LOCATIONS MAY *** NOT *** BE SUBMITTED ONLINE. PLEASE REFER TO THE INSTRUCTIONS BELOW FOR SUBMITTING BY *PHONE, FAX, OR EMAIL. OWNER/APPLICANT: _____________________________________________________________________________ Energy Solutions LLC MAILING ADDRESS: ______________________________________________________________________________ 299 South Main St Ste 1700, Salt Lake City UT 84111 PHONE NUMBER: ________________________________________________________________________________ -- WELL LOCATION: ________________________________________________________________________________ You are authorized to drill 7 Monitor wells. SEE BELOW. WELL UTM COORDINATES: ________________________________________________________________________ WELL ACTIVITY: NEW(X) REPLACE( ) REPAIR( ) DEEPEN( ) PROPOSED START DATE: _________________________________________________________________________ PROJECTED COMPLETION DATE: __________________________________________________________________ LICENSE #: __________LICENSEE/COMPANY: ________________________________________________________ ________________________________________________ ______________________________________ Licensee Signature Date NOTICE TO APPLICANT: THIS CARD IS TO BE GIVEN TO A UTAH-LICENSED WATER WELL DRILLER FOR SUBMITTAL TO THE DIVISION OF WATER RIGHTS PRIOR TO WELL CONSTRUCTION. STATE OF UTAH DIVISION OF WATER RIGHTS Phone No. 801-538-7416 - FAX No. 801-538-7467 Monitor WELL LOCATIONS: 7 (1) N 453' E 1064' from S4 Cor, S29, T 1S , R 11W, SLB&M (2) N 169' W 367' from E4 Cor, S32, T 1S , R 11W, SLB&M (3) N 652' W 37' from SE Cor, S29, T 1S , R 11W, SLB&M (4) N 316' W 48' from SE Cor, S29, T 1S , R 11W, SLB&M (5) N 36' W 1066' from SE Cor, S29, T 1S , R 11W, SLB&M (6) S 205' E 749' from N4 Cor, S32, T 1S , R 11W, SLB&M (7) N 619' W 15' from E4 Cor, S32, T 1S , R 11W, SLB&M COMMENTS: ____________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ START CARDS MAY ALSO SUBMITTED BY PHONE*, FAX, OR EMAIL. PHONE: 801-538-7416 - FAX: 801-538-7467 - EMAIL: waterrights_wells@utah.gov *IF THE START CARD IS PHONED IN, THEN THE COMPLETED AND SIGNED START CARD MUST BE RETURNED TO THE DIVISION OF WATER RIGHTS BY FAX. EMAIL, OR MAIL. *** FOR OFFICE USE ONLY *** WIN: PROCESS DATE: 6/9/26 6/20/2025 807 Direct Push Services, llc 5/27/2025 REQUEST FOR NON-PRODUCTION WELL CONSTRUCTION UTAH DIVISION OF WATER RIGHTS (for wells deeper than 30 feet) Well Type (check one): Test ( ) Monitoring ( ) Cathodic Protection ( ) Closed Loop Heat Exchange* ( ) Piezometer ( ) Inclinometer ( ) Dewatering ( ) Other *This form cannot be used for open loop heat exchange wells. A non-consumptive use water right application must be filed for open loop heat exchange wells. Applicant/Owner Name: Mailing Address: Project Address: Contact Person:Phone: Proposed Start Date:Anticipated Completion Date: Well Driller Name & License #:Proposed # of Wells: PROPOSED LOCATION OF WELLS:County:Area: NO./SO. DISTANCE (feet) EAST/WEST DISTANCE (feet) SECTION CORNER SECTION TOWNSHIP RANGE BASE DIAMETER (inches) DEPTH (feet) PROPERTY PARCEL NUMBER Use back of form or additional paper if more room is needed. If providing well locations in latitude/logitude or UTM coordinates, please also provide the map datum used (e.g., NAD27, NAD83, WGS84, etc.).This form must be completed and signed by the owner/applicant and not by the licensed driller. EXPLANATORY: Signature of Applicant Date(attesting to completeness & accuracy) FOR OFFICE USE ONLY Approved By:Approval Date:Non-Production Well No.: Request for Non-Production Well X EnergySolutions LLC 299 South Main Street Suite 1700 Salt Lake City, UT 84111 Interstate 80 Exit 49 Grantsville, UT 84029 Mat Schon 801-649-2060 06/09/2025 06/27/2025 DIRECT PUSH SERVICES, LLC (807)7 Tooele 16 N 619 W 15 E4 32 1S 11W SL 2 42 04-101-A-0005 N 169 W 367 E4 32 1S 11W SL 2 42 04-101-A-0005 N 652 W 37 SE 29 1S 11W SL 2 45 04-100-J-0001 N 316 W 48 SE 29 1S 11W SL 2 45 04-100-J-0001 N 36 W 1066 SE 29 1S 11W SL 2 45 04-100-J-0001 N 453 E 1064 S4 29 1S 11W SL 2 45 04-100-J-0006 S 205 E 749 N4 32 1S 11W SL 2 45 04-100-A-0005 5/20/2025 ATTACHMENT B Well Installation Documents DE P T H ( f t ) 5 10 15 20 EL E V A T I O N ( f t ) 4282 4277 4272 4267 MATERIAL DESCRIPTION [TOPSOIL] (0-2.5') Top soil, silty sand with gravel. DRY. [CL] (2.5'-10') Lean clay, ~10% fine sand also silt, soil is firm, there are zones that are sandier, no odor. (10YR6/2) LIGHT BROWNISH GREY, DRY TO MOIST, Tan grey. [SM] (10'-11') Silty sand, fine sand. (10YR5/3) BROWN, DRY, Light brown. [CL] (11'-19') Lean clay with sand, firm, ~15% dine sand, sand silt zones ~<4" thick, no odor. (10YR6/2) LIGHT BROWNISH GREY, MOIST, Grey brown color. [CH] (19'-27.5') Fat clay with sand, increase in sand from upper unit ~20-25%, fine sand and silt, no odor. (5YR4/4) REDDISH BROWN, MOIST, Red brown color. GR A P H I C LO G RE C O V E R Y % [R Q D ] [75] [75] [85] [100] [80] PI D ( P P M ) REMARKS WELL DIAGRAM Bentonite seal (0'-24' bgs) GS FORM: SOIL-5950 WELL LOG GW-158 Sheet 1 of 2 PROJECT NAME East Side Rotary Investigation NUMBER SLC1054 GROUND SURF. (FT)4276.559 LOCATION Clive, UT DATUM WGS84 (G1762) DATE STARTED 06-23-2025 TOP OF CASING 4279.729 ft DATE COMPLETED 06-23-2025 GWT DEPTH (ft)33.0 (bgs) CONTRACTOR EQUIPMENT DRILL MTHD. DIAMETER (in.) LOGGER Direct Push Services Geoprobe 7822 DT Direct Push 2.00 Jessica Welch NORTHING 13175.47 EASTING 15330.36 COORDINATE SYSTEMWorld Geodetic System 1984 (G1762)CHECKED BY Garrett Rigard NOTES: 1. After 25 ft, drill can only push 2.5 ft instead of 5 ft due to clay. 2. Well was installed using a hollow stem-auger with an 8" borehole. CASING TOP HEIGHT: 3.17 ft CASING TOP ELEV.: 4279.729 ftCASING TYPE: 2" Sch 40 PVC Geosyntec 0 consultants 215 S State Street, Suite 500Salt Lake City, UT84111 DE P T H ( f t ) 30 35 40 45 EL E V A T I O N ( f t ) 4257 4252 4247 4242 MATERIAL DESCRIPTION [CH] (27.5'-35') Fat clay, trace coarse sand, no odor. (10YR6/2) LIGHT BROWNISH GREY, MOIST, White grey brown mottled with yellow and orange trace coarse sand. [SM] (35'-36') Silty sand, fine to medium trace coarse sand and gravel, no odor.(10YR7/4) VERY PALE BROWN, WET, Light brown white. [CH] (36'-41') Fat clay, <10% fine sand, sandier near bottom, firm, no odor. (10YR5/3) BROWN, MOIST TO WET, Transitions from white to dark brown. [SM] (41'-45') Silty sand, fine sand, no odor. (10YR5/3) BROWN, WET, Dark to medium brown and medium mottled with some yellow spots. GR A P H I C LO G RE C O V E R Y % [R Q D ] [100] [100] [100] [100] [100] [100] [100] [100] PI D ( P P M ) REMARKS WELL DIAGRAM Sand Pack, 10/20 size (24'-43' bgs) Well screen: 2" Sch 40 PVC. Slot size: 0.010" (28'-43' bgs) GS FORM: SOIL-5950 WELL LOG GW-158 Sheet 2 of 2 PROJECT NAME East Side Rotary Investigation NUMBER SLC1054 GROUND SURF. (FT)4276.559 LOCATION Clive, UT DATUM WGS84 (G1762) DATE STARTED 06-23-2025 TOP OF CASING 4279.729 ft DATE COMPLETED 06-23-2025 GWT DEPTH (ft)33.0 (bgs) CONTRACTOR EQUIPMENT DRILL MTHD. DIAMETER (in.) LOGGER Direct Push Services Geoprobe 7822 DT Direct Push 2.00 Jessica Welch NORTHING 13175.47 EASTING 15330.36 COORDINATE SYSTEMWorld Geodetic System 1984 (G1762)CHECKED BY Garrett Rigard NOTES: 1. After 25 ft, drill can only push 2.5 ft instead of 5 ft due to clay. 2. Well was installed using a hollow stem-auger with an 8" borehole. Geosyntec 0 consultants 215 S State Street, Suite 500Salt Lake City, UT84111 CASING TOP HEIGHT: 3.17 ft CASING TOP ELEV.: 4279.729 ftCASING TYPE: 2" Sch 40 PVC DE P T H ( f t ) 5 10 15 20 EL E V A T I O N ( f t ) 4283 4278 4273 4268 MATERIAL DESCRIPTION [FILL] (0'-5') Fill, sandy gravel, more clay rich at the bottom, no odor. DRY. [CL] (5'-12.5') Lean clay with silt, some trace fine sand, no odor. (10YR6/2) LIGHT BROWNISH GREY, MOIST, Light tan to grey/white, orange rust colored banding, gradational contact. [CL] (12.5'-19.5') Lean clay with sand, firm, small lenses of silty sand < 3" thick, no odor. (10YR5/3) BROWN, MOIST, Light brown to medium brown. (13.5'-14') Silty sand. [SM] (19.5'-21') Silty sand, very friable fine sand with some medium sand, ~20% silt, no odor. (10YR5/4) YELLOWISH BROWN, MOIST, Light yellowish brown. [CH] (21'-29') Fat clay, firm, silt and fine sand <10%, no odor. (10YR5/3) BROWN, MOIST, Light orange brown. GR A P H I C LO G RE C O V E R Y % [R Q D ] [75] [100] [70] [80] [100] PI D ( P P M ) REMARKS WELL DIAGRAM Bentonite seal (0'-24' bgs) GS FORM: SOIL-5950 WELL LOG GW-159 Sheet 1 of 2 PROJECT NAME East Side Rotary Investigation NUMBER SLC1054 GROUND SURF. (FT)4277.096 LOCATION Clive, UT DATUM WGS84 (G1762) DATE STARTED 06-24-2025 DATE COMPLETED 06-25-2025 TOP OF CASING 4280.426 ft GWT DEPTH (ft) 33.0 (bgs) CONTRACTOR EQUIPMENT DRILL MTHD. DIAMETER (in.) LOGGER Direct Push Services Geoprobe 7822 DT Direct Push 2.00 Jessica Welch NORTHING 12771.53 EASTING 14985.76 COORDINATE SYSTEMWorld Geodetic System 1984 (G1762)CHECKED BY Garrett Rigard NOTES: 1. After 25 ft, drill can only push 2.5 ft instead of 5 ft due to clay. 2. Well was installed using a hollow stem-auger with an 8" borehole. CASING TOP HEIGHT: 3.33 ft CASING TOP ELEV.: 4280.426 ftCASING TYPE: 2" Sch 40 PVC 215 S State Street, Suite 500Salt Lake City, UT84111Geosyntec0 consultants DE P T H ( f t ) 30 35 40 45 EL E V A T I O N ( f t ) 4258 4253 4248 4243 MATERIAL DESCRIPTION [CH] (29'-34.5') Fat clay, very plastic, gradational with upper and lower unit, no odor. (10YR6/2) LIGHT BROWNISH GREY, MOIST TO WET, Changes from light orange brown to white grey. (33.5') Silt and fine sand increase. [CL] (34.5'-36') Sandy lean clay, 35-40% sand (fine to medium), some minor coarse sand, sub round/round, no odor. (N8) WHITE, MOIST TO WET, White beige color. [CH] (36'-44.5') Fat clay with sand, no odor. (N8) WHITE, WET, White/grey color, mottled with yellow. (37.5') Slightly coarser. [SM] (44.5'-45') Silty sand, fine to medium sand, no odor. (10YR5/3) BROWN, WET, Medium brown. GR A P H I C LO G RE C O V E R Y % [R Q D ] [100] [100] [100] [100] [100] [100] [100] [100] PI D ( P P M ) REMARKS WELL DIAGRAM Sand Pack. 10/20 size (24'-43' bgs) Well screen: 2" Sch 40 PVC. Slot size: 0.010" (28'-43' bgs) GS FORM: SOIL-5950 WELL LOG GW-159 Sheet 2 of 2 PROJECT NAME East Side Rotary Investigation NUMBER SLC1054 GROUND SURF. (FT)4277.096 LOCATION Clive, UT DATUM WGS84 (G1762) DATE STARTED 06-24-2025 TOP OF CASING 4280.426 ft DATE COMPLETED 06-25-2025 GWT DEPTH (ft)33.0 (bgs) CONTRACTOR EQUIPMENT DRILL MTHD. DIAMETER (in.) LOGGER Direct Push Services Geoprobe 7822 DT Direct Push 2.00 Jessica Welch NORTHING 12771.53 EASTING 14985.76 COORDINATE SYSTEMWorld Geodetic System 1984 (G1762)CHECKED BY Garrett Rigard NOTES: 1. After 25 ft, drill can only push 2.5 ft instead of 5 ft due to clay. 2. Well was installed using a hollow stem-auger with an 8" borehole. CASING TOP HEIGHT: 3.33 ft CASING TOP ELEV.: 4280.426 ftCASING TYPE: 2" Sch 40 PVC 215 S State Street, Suite 500Salt Lake City, UT84111Geosyntec0 consultants ATTACHMENT C Slug Testing Data 0. 0.0018 0.0036 0.0054 0.0072 0.009 0.01 0.1 1. Time (day) Di s p l a c e m e n t ( f t ) WELL TEST ANALYSIS Data Set: C:\...\SlugIn_1.aqt Date: 07/03/25 Time: 10:45:33 PROJECT INFORMATION Company: Geosyntec Client: Energy Solution Project: SLC1119 Test Well: GW-158 AQUIFER DATA Saturated Thickness: 12. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (GW-158) Initial Displacement: 0.436 ft Static Water Column Height: 11.76 ft Total Well Penetration Depth: 11.76 ft Screen Length: 11.76 ft Casing Radius: 0.167 ft Well Radius: 0.167 ft SOLUTION Aquifer Model: Unconfined Solution Method: Bouwer-Rice K = 1.242 ft/day y0 = 0.306 ft 0. 0.004 0.008 0.012 0.016 0.02 0.01 0.1 1. Time (day) No r m a l i z e d H e a d ( f t / f t ) WELL TEST ANALYSIS Data Set: C:\...\SlugOut_1.aqt Date: 07/03/25 Time: 10:56:47 PROJECT INFORMATION Company: Geosyntec Client: Energy Solution Project: SLC1119 Test Well: GW-158 AQUIFER DATA Saturated Thickness: 12. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (GW-158) Initial Displacement: -0.779 ft Static Water Column Height: 11.76 ft Total Well Penetration Depth: 11.76 ft Screen Length: 11.76 ft Casing Radius: 0.167 ft Well Radius: 0.167 ft SOLUTION Aquifer Model: Unconfined Solution Method: Bouwer-Rice K = 1.454 ft/day y0 = -0.2984 ft 0. 0.002 0.004 0.006 0.008 0.01 0.01 0.1 1. Time (day) No r m a l i z e d H e a d ( f t / f t ) WELL TEST ANALYSIS Data Set: C:\...\SlugIn_2.aqt Date: 07/03/25 Time: 11:13:13 PROJECT INFORMATION Company: Geosyntec Client: Energy Solution Project: SLC1119 Test Well: GW-158 AQUIFER DATA Saturated Thickness: 12. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (GW-158) Initial Displacement: 0.3733 ft Static Water Column Height: 11.76 ft Total Well Penetration Depth: 11.76 ft Screen Length: 11.76 ft Casing Radius: 0.167 ft Well Radius: 0.167 ft SOLUTION Aquifer Model: Unconfined Solution Method: Bouwer-Rice K = 1.323 ft/day y0 = 0.3008 ft 0. 0.004 0.008 0.012 0.016 0.02 0.001 0.01 0.1 1. Time (day) No r m a l i z e d H e a d ( f t / f t ) WELL TEST ANALYSIS Data Set: C:\...\SlugOut_2.aqt Date: 07/03/25 Time: 11:15:28 PROJECT INFORMATION Company: Geosyntec Client: Energy Solution Project: SLC1119 Test Well: GW-158 AQUIFER DATA Saturated Thickness: 12. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (GW-158) Initial Displacement: -1.08 ft Static Water Column Height: 11.76 ft Total Well Penetration Depth: 11.76 ft Screen Length: 11.76 ft Casing Radius: 0.167 ft Well Radius: 0.167 ft SOLUTION Aquifer Model: Unconfined Solution Method: Bouwer-Rice K = 1.455 ft/day y0 = -0.3127 ft 0. 0.002 0.004 0.006 0.008 0.01 0.1 1. Time (day) No r m a l i z e d H e a d ( f t / f t ) WELL TEST ANALYSIS Data Set: C:\...\SlugIn_1.aqt Date: 07/03/25 Time: 11:25:52 PROJECT INFORMATION Company: Geosyntec Client: Energy Solution Project: SLC1119 Test Well: GW-159 AQUIFER DATA Saturated Thickness: 11.5 ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (GW-159) Initial Displacement: 0.306 ft Static Water Column Height: 11.3 ft Total Well Penetration Depth: 11.3 ft Screen Length: 11.3 ft Casing Radius: 0.167 ft Well Radius: 0.167 ft SOLUTION Aquifer Model: Unconfined Solution Method: Bouwer-Rice K = 0.7566 ft/day y0 = 0.2678 ft 0. 0.0018 0.0036 0.0054 0.0072 0.009 0.1 1. Time (day) No r m a l i z e d H e a d ( f t / f t ) WELL TEST ANALYSIS Data Set: C:\...\SlugIn_2.aqt Date: 07/03/25 Time: 11:34:04 PROJECT INFORMATION Company: Geosyntec Client: Energy Solution Project: SLC1119 Test Well: GW-159 AQUIFER DATA Saturated Thickness: 11.5 ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (GW-159) Initial Displacement: 0.288 ft Static Water Column Height: 11.3 ft Total Well Penetration Depth: 11.3 ft Screen Length: 11.3 ft Casing Radius: 0.167 ft Well Radius: 0.167 ft SOLUTION Aquifer Model: Unconfined Solution Method: Bouwer-Rice K = 0.6664 ft/day y0 = 0.2627 ft 0. 0.004 0.008 0.012 0.016 0.02 0.01 0.1 1. Time (day) No r m a l i z e d H e a d ( f t / f t ) WELL TEST ANALYSIS Data Set: C:\...\SlugOut_1.aqt Date: 07/03/25 Time: 11:34:32 PROJECT INFORMATION Company: Geosyntec Client: Energy Solution Project: SLC1119 Test Well: GW-159 AQUIFER DATA Saturated Thickness: 11.5 ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (GW-159) Initial Displacement: -0.987 ft Static Water Column Height: 11.3 ft Total Well Penetration Depth: 11.3 ft Screen Length: 11.3 ft Casing Radius: 0.167 ft Well Radius: 0.167 ft SOLUTION Aquifer Model: Unconfined Solution Method: Bouwer-Rice K = 0.7416 ft/day y0 = -0.2007 ft 0. 0.004 0.008 0.012 0.016 0.02 0.01 0.1 1. Time (day) No r m a l i z e d H e a d ( f t / f t ) WELL TEST ANALYSIS Data Set: C:\...\SlugOut_2.aqt Date: 07/03/25 Time: 11:36:56 PROJECT INFORMATION Company: Geosyntec Client: Energy Solution Project: SLC1119 Test Well: GW-159 AQUIFER DATA Saturated Thickness: 11.5 ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (GW-159) Initial Displacement: -0.25 ft Static Water Column Height: 11.3 ft Total Well Penetration Depth: 11.3 ft Screen Length: 11.3 ft Casing Radius: 0.167 ft Well Radius: 0.167 ft SOLUTION Aquifer Model: Unconfined Solution Method: Bouwer-Rice K = 1.262 ft/day y0 = -0.2102 ft