Loading...
HomeMy WebLinkAbout007 Appendix F - Water Design ReportEngineering Report Water Main Extension Stockyard Property October 2024 Revised February 2025 Submitted to: City of Bozeman Engineering Department 20 East Olive Bozeman, MT 59715 Prepared by: Stahly Engineering and Associates 851 Bridger Drive, Suite 1 Bozeman, MT 59715 (406) 522-9526 02/14/2025 Water Mains 1 2/14/2025 Engineering Report Contents Note: The Engineering Report format follows DEQ-1 organization. Additional information required by the City of Bozeman Design Standards is added where required. Report Narrative 1.1.1 General Information 1.1.2 Extent of Water Works System 1.1.3 Alternate Plans 1.1.4 Site Conditions 1.1.5 Water Use Data 1.1.6 Flow Requirements 1.1.7 Sources of Water Supply 1.1.8 Proposed Treatment Processes 1.1.9 Sewage System Available 1.1.10 Waste Disposal 1.1.11 Automation 1.1.12 Project Sites 1.1.13 Financing 1.1.14 Future Extensions Figures and Tables Figure 1. Vicinity Map Table 1. Stockyard Property Estimated Water Use Table 2. Relative Water Use – Per Unit to Per Square Foot Attachments and Appendices C 2.0. Water Plan WaterCAD Report DIPRA Analysis Water Mains 2 2/14/2025 11.1 Engineering Report – General Information The Stockyard Property is located west of the intersection of East Griffin Drive and Story Mill Road. The Stockyard Property is a total of 15.28 acres comprised of 6 tracts with REMU and B-2M zoning. Water and sewer service for the property will be provided by extensions from existing City of Bozeman water and sewer mains adjacent to the site. The developer’s contact information is: Wake Up, Inc. Christine & Kevin Huyser P.O. Box 23 Harrison, MT 59735 Water supply and wastewater treatment will be provided by the City of Bozeman’s municipal systems. The system owner’s contact information is: City of Bozeman Public Service Department PO Box 1230 Bozeman, MT 59771-1230 The Stockyard Property is located as shown on the Vicinity Map in Figure 1. Figure 1: Vicinity Map, Bozeman, Montana Water Mains 3 2/14/2025 1.1.1 Extent of Water Works System City of Bozeman water mains exist in streets adjacent to the Stockyard. Water supply to this area is from an existing 18” diameter water main from Lyman Creek Reservoir which supplies the neighborhood water mains. This project will provide approximately 1235 linear feet of 8” water main connecting to existing mains in 3 locations, which will improve system connectivity. New water mains will be in public street rights-of-way and easements. Five (5) new fire hydrants are proposed with the development. Individual domestic service connections and individuation fire service lines (where required) are proposed for the existing sale barn building. Two (2) 8” water main stubs are proposed for future extension as needed for individual site development. The proposed water system improvements are shown on the Water Plan attached at the end of this report. The Stockyard water main extensions have been designed in accordance with Montana Department of Environmental Quality Circular 1, and the City of Bozeman Design Standards and Specifications Policy. Construction specifications will be Montana Public Works Standards and Specifications (MPWSS), and the City of Bozeman Modifications to MPWSS. 1.1.2 Alternate Plans Due to the project’s location within the City of Bozeman, extension of public mains was the only water supply alternative. Distribution alternatives were explored, and the proposed design was selected to provide main looping and eliminate dead end segments. 1.1.4. Site Conditions The Stockyard project is located in the northwest and southwest quadrants at the intersection of East Griffin Dr and Story Mill Rd. The property was previously occupied by an auction house, restaurant, several single-family residences and associated outbuildings. The site is gently sloping to the west and south. A geotechnical investigation was conducted, and the report is provided as an attachment to the infrastructure submittal. In summary the geotechnical investigation found a variable depth of fine-grained soils overlying gravel sediments. The depth to gravel varies between 3 and 13 feet. Water Mains 4 2/14/2025 Groundwater monitoring was conducted throughout the 2022 season and found seasonal high groundwater depths ranged from 2’ to greater than 13’ below existing grade. Groundwater is flowing to the west and is assumed to discharge at the East Gallatin River which is the western boundary of the southern part of this project. The range of groundwater depth encountered was largely due to the rolling topography of the site with some wells located at lower or higher relative locations. After site grading, high groundwater will more consistently be about 10’ below the surface. 1.1.5. Water Use Data Domestic and lot irrigation water will be provided by the City of Bozeman Municipal system. This project is located within the planned service area of the City’s system. Water use per square foot of office, retail, and restaurant was estimated based on DEQ Circular 4 – Table 3.1. Conversion factors and usage rates used to derive per square foot rates from per unit rates are shown below in Table 1. These values along with typical design values from City design standards and facility plans were used to calculate total water usage for the property as shown in Table 2. Table 1. Relative Water Use – Per Unit to Per Square Foot Space Unit Units/1,000 SF GPD/Unit GPD/1,000 SF Office Employee 4 15 60 Restaurant Meal 125 4 500 Employee 2 10 Customer 5 3Retail 35 Water Mains 5 2/14/2025 Table 2. Stockyard Estimated Water Use Water use per square foot of office, retail, and restaurant was estimated based on DEQ Circular 4 – Table 3.1. Conversion factors and usage rates used to derive per square foot rates from per unite rates are shown below in Table 2. 1.1.6. Flow Requirements Flow Requirements As stated above, the peak hour water demand is estimated to be 143 gpm. The proposed water mains will also provide fire protection water supplies (fire flow). Final fire flow requirements for each site are unknown at this time. Fire Analysis Summary Fire flow analysis was carried out using a combination of observed field data, as-built drawings, and WaterCAD hydraulic modelling software. Existing system geometry for the model component was based off survey, as-built drawings, and aerial photograph data. Hydrant leads were each assumed to be 6” diameter. A Manning’s roughness coefficient of 130 was used for all piping. The Lyman Reservoir which supplies the subject service area was hydraulically modelled based on data in the City’s 2017 Water Facility Plan update. A hydrant flow test was conducted by the Stockyard Water Use Residential Commercial Area (sf)Area (ac)Units Capita/Unit GPD/Capita Residential Water Use (gpd) Office Space GPD/1,000 SF (Office) Restaurant Space GPD/1,000 SF (Restaurant) Retail Space GPD/1,000 SF (Retail) Combined Commercial Water Use (gpd) Residential & Commercial Water Use (gpd) Tract 1 (REMU)56,765 1.30 44 2.11 89.0 8263 0 8,263 Tract 2 (REMU)47,233 1.08 40 2.11 89.0 7512 0 7,512 Tract 3 (REMU)25,053 0.58 4 2.11 89.0 751 2000 60 2000 35 190 941 Tract 4 (B-2M)46,262 1.06 34 2.11 89.0 6385 20000 60 2000 500 2000 35 2270 8,655 Tract 5 (B-2M)168,336 3.86 4 2.11 89.0 751 24000 60 6000 500 2000 35 4510 5,261 Tract 6 (B-2M)266,348 6.11 4 2.11 89.0 751 2000 60 10000 500 5120 5,871 Total Units 130 - 274 Residential Water Use Subtotal 24,413 Commercial Water Use Subtotal 12,090 36,503 Total Domestic Water Use (gpd)36,503 Average Day Water Use [Equal to Total Domestic Water Use] (gpd) 36,503 Private Lot Area (ac)14.00 Private Lot Irrigated Area = 25% of Lot Area (ac)3.50 Private Lot Irrigation Rate (gal/ac/day)4,000 Private Lot Irrigation (gpd)14,000 Total Irrigation from City Water System (gpd)14,000 Max Day Water Use [Average Day Water Use + Irrigation] (gpd)50,503 ;P = Pop. ÷ 1,000 Peaking Factor (PF)4.09 Design Water Peak Hour Flow 143.61 Total Population = (Total # of Units * 2.11 cap/Unit) Water Mains 6 2/14/2025 engineer as described on the attached WaterCad Model Exhibit. Data from this this test was used to calibrate the hydraulic model. Several flow scenarios were chosen for model analysis. Existing average day and max day use for the model was based on data obtained from the City’s 2017 Water Facility Plan update. Average day flows were used for model calibration and max day flows for fire flow determination. For determining max day flows, Lyman reservoir peak hour demand, Pear Street Booster Station Peak pump capacity, and house counting were used. As described in the Facility Plan, the Pear Street Booster Station transfers water from the Northeast Pressure Zone, where the Stockyard Property is located, into the South Pressure Zone. This configuration informs the existing and future demand allocation used in the hydraulic model. These water flow rates were then used to project usage for the Stockyard as well as existing and obligated future off-site uses. A minimum fire flow residual pressure of 20 psi, minimum working pressure of 35 psi as well as a maximum velocity of 15 feet per second in any water main were used as primary constraints for this analysis. Due to the proximity of this development to the Lyman Reservoir and the resulting system pressure, Fire flow capacity for this system is primarily limited by the maximum velocity constraint. The projected fire flow available at each proposed hydrant location are listed on the attached WaterCad Model Exhibit and range from approximately 2,530 gpm to 3,500 gpm. 1.1.7. Sources of Water Supply This section is not applicable. 1.1.8. Proposed Treatment Process This section is not applicable. 1.1.9 Sewage System Available Sewer service is provided by new City mains extended through the site from the existing sewer main running in Story Mill Road and Hillside Lane. Sewers will be approximately 7-15 feet deep and primarily cross below water mains and services. Water Mains 7 2/14/2025 1.1.10 Waste Disposal This section is not applicable. 1.1.11 Automation This section is not applicable. 1.1.12 Project Sites This section is not applicable. 1.1.13 Financing This section is not applicable. 1.1.14 Future Extensions Future extensions of these mains are anticipated as individual tracts on this property are developed. EAST GRIFFIN DRIVESTORY MILL ROADHILLSIDE LANESTORY MILLCOMMUNITY PARKSTORY MILLCOMMUNITY PARKHILLSIDE LANETRACT 21.08 ACRESTRACT 11.30 ACRESTRACT 41.06 ACRESTRACT 53.86 ACRESTRACT 66.11 ACRESROW1.28ACRESTRACT 30.58 ACRESFIRE FLOW AVAILABLEHYDRANT IDFLOW (GPM)H13,500NOTE: FIRE FLOW CRITERIA IS MINIMUMOF 20 PSI IN SYSTEM AND/OR MAXIMUM15 FT/S VELOCITY IN MAINS.FLOW (GPM)2,500129OBSERVED HYDRANT COMPARISONMEASUREDMODELSTATIC (PSI)RESIDUAL (PSI)1131102,500129LYMAN RESERVOIR MODELED AS PRIMARYSUPPLY. HGL CALIBRATED TO FIELDMEASUREMENTS (FACILITY PLAN DATA:5038 AGL; MODEL INPUT: 5036 AGL). THE18" MAIN FROM LYMAN RESERVOIR TO J-48IS MODELED AT 5,500 FEET IN LENGTH.EX. HYDRANT (OBSERVEDHYDRANT IN FIELD TESTS)EX. HYDRANT (FLOWINGHYDRANT IN FIELD TESTS)DEMAND SUMMARYPEAR ST. BOOSTER STATIONFLOW (GPM)1,900500300BRIDGER DR.CANYON GATE &LEGENDS I & IITOTALLOCATION2,869500 GPM DEMAND TOBRIDGER DRIVE1,900 GPM DEMAND TO PEARST. BOOSTER STATIONBridger Canyon Road(AKA HWY 86 - 144' ROW)NEW HYDRANT (H1)NEW HYDRANT (H2)NEW HYDRANT (H3)NEW HYDRANT (H4)NEW HYDRANT (H5)CONNECTION TOEX. SYSTEMCONNECTION TOEX. SYSTEMCONNECTION TOEX. SYSTEMNEW 8" WATER LINENEW 8" WATER LINENEW MAX DAY DEMAND FORSTOCKYARD PROPERTY MODELEDAT 73 GPM PLACED AT NODE J4H23,500H33,500H43,230H52,530144STOCKYARDIN A FIRE FLOW EVENT, THE 10" MAIN INSTORY MILL RD AND 12" MAIN IN BRIDGERDR PROVIDE CAPACITY FOR THESTOCKYARD PROPERTY ADDITIONAL TOTHAT OF THE 18" LYMAN RESERVOIR MAIN.300 GPM DEMAND TO CANYONGATE AND LEGENDS I & II25BRIDGER VIEW25 GPM DEMAND TOBRIDGER VIEWEXHIBITWATERCADMODEL1 1/16/2023 ROAD & UTILITY PLAN CDP ZWL 2 10/30/2024 COB INFRASTRUCTURE WLN CDP PROFESSIONALENGINEERS &SURVEYORSSTAHLYENGINEERING& ASSOCIATESSTOCKYARD SITE ROAD & UTILITY PROJECT WAKE UP, INC BOZEMAN, MONTANA Fire Flow Node FlexTable: Fire Flow Report Velocity of Maximum Pipe (ft/s) Pipe w/ Maximum Velocity Velocity (Upper Limit) (ft/s) Junction w/ Minimum Pressure (System) Pressure (Calculated System Lower Limit) (psi) Pressure (Calculated Residual) (psi) Fire Flow (Available) (gpm) Label 13.19P115.00J299673,500H1 11.35P615.00J396643,500H2 13.38P615.00J598623,500H3 15.00P615.00H5104713,230H4 15.00P715.00H4110912,530H5 Page 1 of 127 Siemon Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755-1666 1/15/2025 WaterCAD [10.03.02.75] Bentley Systems, Inc. Haestad Methods Solution CenterSY_WaterCAD.wtg FlexTable: Junction Table ZonePressure (psi) Hydraulic Grade (ft) Demand (gpm) Elevation (ft) Is Active?Label <None>1395,021.145004,700.00TrueBRIDGER <None>1305,021.87254,721.61TrueBV <None>1275,021.8604,728.69TrueEX-HYD-1 <None>1265,022.0704,731.16TrueEX-HYD-2 <None>1285,021.7904,726.82TrueH1 <None>1295,021.6504,724.00TrueH2 <None>1265,021.5804,730.00TrueH3 <None>1245,021.5804,735.00TrueH4 <None>1235,021.3804,737.00TrueH5 <None>1275,021.6704,728.00TrueH103 <None>1265,021.9304,731.42TrueHYD-BV-1 <None>1275,021.8404,728.52TrueHYD-BV-2 <None>1255,021.9004,733.15TrueHYD-BV-3 <None>1285,021.8404,726.20TrueHYD-BV-4 <None>1315,021.8304,718.17TrueJ-1 <None>1315,021.8404,718.82TrueJ-2 <None>1305,021.8804,721.84TrueJ-3 <None>1295,021.9304,724.13TrueJ-4 <None>1295,022.1304,723.29TrueJ-5 <None>1305,021.8404,720.75TrueJ-6 <None>1285,021.9004,725.45TrueJ-7 <None>1275,021.9004,728.09TrueJ-8 <None>1305,021.8704,722.03TrueJ-10 <None>1295,021.9204,724.60TrueJ-11 <None>1285,021.9004,725.01TrueJ-12 <None>1305,022.0704,722.26TrueJ-14 <None>1315,021.8404,717.96TrueJ-18 <None>1315,021.8404,718.46TrueJ-19 <None>1315,021.8404,719.96TrueJ-20 <None>1305,021.8704,721.79TrueJ-22 <None>1305,021.8504,721.35TrueJ-23 <None>1295,021.8904,723.97TrueJ-24 <None>1305,021.8804,721.94TrueJ-25 <None>1295,022.0304,723.79TrueJ-26 <None>1315,021.8604,719.44TrueJ-29 <None>1295,021.9304,723.86TrueJ-32 <None>1305,021.5804,720.00TrueJ-44 <None>1305,021.5404,720.00TrueJ-45 <None>1305,021.3804,720.00TrueJ-46 <None>1305,020.541,9004,720.00TrueJ-47 <None>1315,023.1904,720.00TrueJ-48 <None>1275,021.6704,728.00TrueJ-50 <None>2,1755,026.5900.00TrueJ-57 <None>2,1735,022.9600.00TrueJ-58 <None>1305,022.313004,722.75TrueJ-59 <None>1315,021.8404,720.00TrueJ1 <None>1315,021.7904,720.00TrueJ2 <None>1315,021.6504,720.00TrueJ3 Page 1 of 227 Siemon Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755-1666 1/15/2025 WaterCAD [10.03.02.75] Bentley Systems, Inc. Haestad Methods Solution CenterSY_WaterCAD.wtg FlexTable: Junction Table ZonePressure (psi) Hydraulic Grade (ft) Demand (gpm) Elevation (ft) Is Active?Label <None>1305,021.581444,720.00TrueJ4 <None>1305,021.5804,720.00TrueJ5 <None>1305,021.5804,720.00TrueJ6 <None>1305,021.3804,720.00TrueJ7 <None>1305,021.3804,720.00TrueJ8 Page 2 of 227 Siemon Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755-1666 1/15/2025 WaterCAD [10.03.02.75] Bentley Systems, Inc. Haestad Methods Solution CenterSY_WaterCAD.wtg FlexTable: Pipe Table Is Active?Length (User Defined) (ft) Length (Scaled) (ft) Velocity (ft/s) Flow (gpm) Minor Loss Coefficient (Local) Hazen-Williams C MaterialDiameter (in) Stop NodeStart NodeLabel True0140.0002.700130.0Ductile Iron6.2J2H1HL1 True0170.0002.700130.0Ductile Iron6.2J3H2HL2 True0260.0002.700130.0Ductile Iron6.2J5H3HL3 True0340.0002.700130.0Ductile Iron6.2H4J6HL4 True0200.0002.700130.0Ductile Iron6.2H5J7HL5 True01280.23-390.000130.0Ductile Iron8.3J-18J-1P-1 True01310.23-390.000130.0Ductile Iron8.3J-19J-18P-2 True0390.23-390.000130.0Ductile Iron8.3J-2J-19P-3 True0820.17290.000130.0Ductile Iron8.3J-20J-2P-4 True01920.17290.000130.0Ductile Iron8.3J1J-20P-5(1) True0280.60-1020.000130.0Ductile Iron8.3J-6J1P-5(2) True0510.60-1020.000130.0Ductile Iron8.3J-23J-6P-6 True0570.60-1020.000130.0Ductile Iron8.3J-10J-23P-7 True01610.48-820.000130.0Ductile Iron8.3J-24J-10P-8 True0870.48-820.000130.0Ductile Iron8.3J-12J-24P-9 True0280.0000.000130.0Ductile Iron8.3J-7J-12P-10 True01510.0000.000130.0Ductile Iron8.3J-8J-7P-11 True02640.40-670.000130.0Ductile Iron8.3BVJ-2P-12 True0220.66-1120.000130.0Ductile Iron8.3J-3BVP-13 True02010.66-1120.000130.0Ductile Iron8.3J-32J-3P-14 True0260.66-1120.000130.0Ductile Iron8.3J-4J-32P-15 True01090.12200.000130.0Ductile Iron8.3J-22BVP-16 True01430.12200.000130.0Ductile Iron8.3J-10J-22P-17 True01240.0000.000130.0Ductile Iron8.3J-3J-25P-18 True01321.14-1940.000130.0Ductile Iron8.3J-26J-4P-19 True01341.14-1940.000130.0Ductile Iron8.3J-5J-26P-20 True01080.48820.000130.0Ductile Iron8.3J-11J-4P-21 True01060.48820.000130.0Ductile Iron8.3J-12J-11P-22 True02771.33-5000.000130.0Ductile Iron12.4J-1J-50P-23 True0501.23-4610.000130.0Ductile Iron12.4J-29J-1P-24 True04071.23-4610.000130.0Ductile Iron12.4J-14J-29P-25 True01151.23-4610.000130.0Ductile Iron12.4J-5J-14P-26 Page 1 of 227 Siemon Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755-1666 1/15/2025 WaterCAD [10.03.02.75]Bentley Systems, Inc. Haestad Methods Solution CenterSY_WaterCAD.wtg FlexTable: Pipe Table Is Active?Length (User Defined) (ft) Length (Scaled) (ft) Velocity (ft/s) Flow (gpm) Minor Loss Coefficient (Local) Hazen-Williams C MaterialDiameter (in) Stop NodeStart NodeLabel True0150.0002.700130.0Ductile Iron6.2EX-HYD-1J-29P-28 True0130.0002.700130.0Ductile Iron6.2EX-HYD-2J-14P-29 True0220.0002.700130.0Ductile Iron6.2HYD-BV-4J-19P-30 True0150.0002.700130.0Ductile Iron6.2J-6HYD-BV-2P-31 True0150.0002.700130.0Ductile Iron6.2J-7HYD-BV-3P-32 True0372.401,9000.000130.0Ductile Iron18.0J-45J-44P-32 True0110.0002.700130.0Ductile Iron6.2HYD-BV-1J-32P-33 True01422.401,9000.000130.0Ductile Iron18.0J-46J-45P-33 True1,0001251.335000.000140.0Ductile Iron12.4BRIDGERJ-50P-34 True07242.401,9000.000130.0Ductile Iron18.0J-47J-46P-34 True01,3702.41-1,9140.000130.0Ductile Iron18.0J-48J-44P-35 True09411.696350.000130.0Ductile Iron12.4J-59J-48P-39(1) True01871.746550.000130.0Ductile Iron12.4J-5J-59P-39(2) True090.0002.700130.0Ductile Iron6.2H103J-50P-45 True01,7103.212,5480.000130.0Ductile Iron18.0J-48J-57P-47 True3,800313.62-2,8690.000130.0Ductile Iron18.0R-2J-57P-48 True02,1931.813210.000130.0Ductile Iron8.5J-58J-57P-49 True01,0961.193210.000130.0Ductile Iron10.5J-59J-58P-50 True01320.771300.000130.0Ductile Iron8.3J2J1P1 True04010.771300.000130.0Ductile Iron8.3J3J2P2 True01970.771300.000130.0Ductile Iron8.3J4J3P3 True0800.08-140.000130.0Ductile Iron8.3J5J4P4 True02810.08-140.000130.0Ductile Iron8.3J6J5P5 True0990.08-140.000130.0Ductile Iron8.3J-44J6P6 True0320.0000.000130.0Ductile Iron8.3J7J-46P7 True0270.0000.000130.0Ductile Iron8.3J8J7P8 Page 2 of 227 Siemon Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755-1666 1/15/2025 WaterCAD [10.03.02.75]Bentley Systems, Inc. Haestad Methods Solution CenterSY_WaterCAD.wtg WATERCAD MODELLING RESULTS Bozeman Water DistributionSystem Model CalibrationField Test Data Sheet Test Number: __________ Test Date: ______________ Start Time: ___________ End Time: ___________ Test By: _________ Zone: ___________________ 18 622 2497 624RESIDUAL HYDRANT Hydrant No. ______ HPR No. ________ Static: __________ Residual: ________ FLOW HYDRANT #1 Hydrant No. ______ HPR No. ________ Flow: ______________ FLOW HYDRANT #2 Hydrant No. ______ HPR No. ________ Flow: ______________ 18GFGFGFGFGFGFGFGFGFGFGFGFGFGFGFGFGFGFGFG!! G!! G!!622 (507)(505) (404) (416)(400)(418) (408) (509) (605) (610) (700) (516) (412) (604) (701) (517) (516) (414) (411) (602) (701) (1800) (1404) (1190) (1606) (1628) (1401) (1416) (1602) (1612) (1606) (1525)(1520)(1515)(1502) (1408) (1403) (1407) (1413) (1410)62424974" CI8" DI 18" CI12" DI10" DI 6" DI4" DI6" CI12" DI 6" DI10" DI 18" CI12" DI4" CI12" DI8" DI12" DI8" DI12" DI 8" DI 8" DI 8" DI 12" DI6" DI 18" CI8" DI12" DI12" DI18" CI8" DIROUSE AVEGOLD AVE BOND ST INTERSTATE 9 0 H W Y BRYANT ST INTERSTATE 9 0 H W Y G!!Flow Hydrants GFOther HydrantsG!!Test Hydrants 9/29/2015 9:29 AM 9:42 AM JDH 1240 124.3 psi 109.2 psi 1241 1,674 gpm 1,693 gpm 201250 NORTHEAST Bozeman Water DistributionSystem Model CalibrationField Test Data Sheet Test Number: __________ Test Date: ______________ Start Time: ___________ End Time: ___________ Test By: _________ Zone: ___________________ 20 1939 1940 919RESIDUAL HYDRANT Hydrant No. ______ HPR No. ________ Static: __________ Residual: ________ FLOW HYDRANT #1 Hydrant No. ______ HPR No. ________ Flow: ______________ FLOW HYDRANT #2 Hydrant No. ______ HPR No. ________ Flow: ______________ 20GFGFGFGFGFGFGFGFGFGFGFGFGFGFGFGFGF GFGFGFGFGFG!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! G!! 193 9 (2413) (1625) (2565) (1220) (1353)(1337)(1317) (1374)(1362)(1348)(2494)(1268)(1244)(1226) (1362) (1334)(1318)(1306) (1253)(1225)(1179)(1163)(1145)(1131)(1115)(1107) (2563) (2545) (2527) (2584) (2558) (2526) (2512) (2595) (2571)(2563)(2547)(2535)(2523)(2517)(2505) (2592)(2586) (2574)(2562) (2556)(2542)(2530)(2516) (2512)(2508) (2599) (2579) (2567) (2549) (2537) (2525) (2511) (2503) (2500)(2501) (2404) (2412) (2420) (2403) (1002) (1002) (1002)(1002) (1002) (1002) (1002) (2520)(2519)(2518) (2516) (2517) (2515) (2513) (2507) (2503) (2513) (2511) (2416) (2510) (2407) (2514) (2401) (1075) (2408) (2410) (2506) (2509) (2505) (2411) (1233) (1069) (2506)(2504) (2502) (2514) (2512) (2510) (2508)9191940 8" DI 10" DI6" DI8" DI8" DI8" DI8" DI 6" DI8" DI 8" DI 8" DI 8" DI 8" D I 8" DI8" DI 8" DI 10" DI8" DI 6" DI8" DI 8" DI 8" DI8" D I 8" DI 8" DI 8 " D I 8" DI8 " D I 8" DI 8" DI8" DI STORY MILL RDBOYLAN RD PINNACLE STAR ST PA R C T WEEPING ROCK LNPUTTER CTBOYLAN RD G!!Flow Hydrants GFOther HydrantsG!!Test Hydrants 9/29/2015 10:37 AM 10:48 AM JDH 1240 127.4 psi 113.1 psi 1241 1,596 gpm 1,682 gpm 201250 NORTHEAST September 2, 2021 Wake Up Inc. Christine Huyser P.O. Box 23 Harrison, MT 59735 Email: christinehuyser@gmail.com (Issued via email only) Re: Soil Corrosivity Sampling and Testing Stockyard Properties, Bozeman, MT Dear Ms. Huyser: Allied Engineering Services, Inc. (AESI) was retained to perform soil corrosivity sampling and testing across the Stockyard Properties site to determine if the on-site soils are corrosive to ductile iron pipe (DIP) (for water main infrastructure). The test pit locations were selected by Stahly Engineering to provide coverage of the site. This letter summarizes the site conditions, soil sampling, laboratory testing results and analysis, and the corresponding corrosion protection recommendations. Please see attachments for test pit location maps, laboratory testing data, and the corrosion design decision model that used (from the Ductile Iron Pipe Research Association and Corrpro Companies, DIPRA-Corrpro). We completed the following as per our scope of work: • Reviewed AESI’s geotechnical report for the Stockyards Properties dated July 29, 2021. • Reviewed the DIPRA-Corrpro Design Decision Model document (attached). • Reviewed groundwater monitoring data collected June 15, 2021 through the present. • Logged nine test pits on June 15, 2021, located as requested by Stahly Engineering to provide coverage of the property area. • Collected five composite samples of soils across the site within the typical water main depth range of 4.0 to 8.0 feet. • Completed analytical testing for moisture content, resistivity, chlorides, pH, sulfide ions, and redox potential. This testing was conducted by Energy Labs in Helena. • Analyzed site conditions and lab data according to the DIPRA-Corrpro Design Decision Model. Soil Corrosivity Sampling and Testing Stockyard Properties – Bozeman, MT Project: 21-108 September 2, 2021 Page 2 SUBSURFACE CONDITIONS On June 15, 2021, AESI conducted a geotechnical investigation of the subject property. The work included the excavation of nine test pits (TP-1 through TP-9), the installation of 4 PVC groundwater monitoring wells (in four of the test pits), and the preparation of a final geotechnical report. According to the AESI geotechnical report, the project site is underlain by intermixed fluvial and floodplain deposit soil conditions that are typical for the northeast side of Bozeman, including about 1.0 to 6.0 feet of topsoil and/or mixed fill, an intermediate layer of fine grained native silty sand and sandy clay with varying thickness to depths of about 6.5 to 13.0 feet, and native clean sandy gravel beginning below the fine-grained soils. Note that in some locations (TP-3 and TP-7), the random fill extended deeper in trenches and/or potential borrow pits, up to a depth of 14.5 feet. In the other test pits, the clean sandy gravel deposits extended to the bottom of the 10.0 to 11.5-foot-deep test pits. Groundwater was encountered in most test pits at a depth of 11.0 to 13.5 feet (the shallowest was at 4.5 feet in TP-6). AESI performed groundwater monitoring of the wells installed in the test pits from June 2021 to August 2021. Groundwater monitoring in TP-6 indicated levels ranged from 4.5 to 5.5 feet. All remaining wells were dry during monitoring. Table 1 provides a summary of the soil and groundwater monitoring conditions observed in the test pits. For additional discussion, please see our geotechnical report dated July 29, 2021. Table 1. Summary of Soil and Groundwater Monitoring Conditions TP # TP LOCATION RANDOM FILL NATIVE TOPSOIL SAND/SILT/ CLAY NATIVE SANDY GRAVEL 2021 (TO DATE) SEASONAL HIGH GROUNDWATER AND NOTES 1 N none 0.0’ – 1.5' 1.5’ – 11.0’ 11.0’ – 12.5’ Dry 2 NW 0.0’ – 1.5’ 1.5’ – 2.5’ 2.5’ – 13.0’ 13.0’ – 14.0’ Dry 3 NW 0.0’ – 14.5’ none none none 11.0’ at excavation 4 Center none 0.0’ – 0.75’ 0.75’ – 1.5’ n/a Found PVC cleanout – old drainfield? Aborted TP. 5 Center none 0.0’ – 1.0’ 1.0’ – 7.0’ 7.0’ – 13.5’ 13.0’ at excavation 6 SW 0.0’ – 1.5’ none 1.5’ – 6.5’ 6.5’ – 10.0’ 4.5’ at excavation 7 South Center 0.0’ – 1.0’ 1.0’ – 2.0’ 2.0’ – 8.0’ & 9.0’ – 11.0’ 8.0’ – 9.0’ & 11.0’ – 14.0’ 13.5’ at excavation; Random fill in trenches to 9.0’? 8 S 0.0’ – 5.0’ 5.0’ – 6.0’ 6.0’ – 10.5’ 10.5’ – 14.0’ 13.5’ at excavation 9 SE 0.0’ – 0.5’ 0.5’ – 2.0’ 2.0’ – 7.0’ 7.0’ – 13.5’ Dry Notes: 1) Moist condition at depth (12’ to 14’ below ground surface) was observed in TP-1, TP-2, and TP-9 during excavation. 2) Groundwater was monitored onsite on a weekly basis from June 15, 2021 to August 9, 2021. Soil Corrosivity Sampling and Testing Stockyard Properties – Bozeman, MT Project: 21-108 September 2, 2021 Page 3 SOIL CORROSIVITY SAMPLING AND TESTING Composite samples were collected from various soils layers from 4.0 to 8.0 feet that will be representative of water main depths and trench backfill during construction. A summary of the depth and composition of the soil samples is provided in Table 3: Table 3. Soil Corrosivity Sampling Location, Depth, and Composition Sample # TP # TP LOCATION DEPTH OF SAMPLE SAMPLE COMPOSITION 1 1 N 4.0’ – 8.0’ Sandy Lean Clay 2 2 NW 4.0’ – 8.0’ Sandy Lean Clay 3 5 Center 4.0’ – 8.0’ Sandy Silt/Sandy Gravel 4 6 SW 4.0’ – 8.0’ Sandy Gravel 5 8 S 4.0’ – 8.0’ Silty Sand/Sandy Clay Notes: 1) All depth measurements are relative to below existing ground. 2) Sample depths are representative of the soil profile in each test pit. All five samples were submitted to Energy Labs in Helena for geochemical testing. The analyses included resistivity, chlorides, pH, sulfide ions, redox potential, and moisture. Energy Labs testing results are attached and are summarized in Table 4. Table 4. Summary of Lab Testing Data from Samples 1 – 5 Sample # SAMPLE ID AND SOIL TEXTURE MOISTURE CONTENT (%) RESISTIVITY (ohm/cm) CHLORIDE (PPM) pH (SU) SULFIDE IONS (PPM) REDOX POTENTIAL (mV) 1 TP-1 @ 4.0’ - 8.0’ Sandy Lean Clay 11.5 7,540 7 8.3 ND 198 2 TP-2 @ 4.0’ - 8.0’ Sandy Lean Clay 14.2 7,450 7 8.4 ND 185 3 TP-5 @4.0’ - 8.0’ Sandy Silt/Sandy Gravel 7.9 4,550 7 8.3 ND 246 4 TP-6 @ 4.0’ – 8.0’ Sandy Gravel 9.4 5,610 11 8.2 ND 235 5 TP-8 @ 4.0’ – 8.0’ Silty Sand/Sandy Clay 18.5 2,000 29 8.1 ND 225 Soil Corrosivity Sampling and Testing Stockyard Properties – Bozeman, MT Project: 21-108 September 2, 2021 Page 4 DIPRA ANALYSIS AND RECOMMENDATIONS The site condition and lab testing data were evaluated using DIPRA-Corrpro’s Table 2 and Table 3 to obtain corrosion likelihood and corrosion consequence scores. These scores were then plotted in the DIRPRA Design Decision Model Two-Dimensional Matrix to obtain the DIPRA corrosion protection recommendation. Table 6 provides the DIPRA scores and recommendations for each of the soil samples. Please see the attached sheets to see plots of each sample. Table 6. Summary of DIPRA Scores and Recommendations from Samples 1 - 5 Sample # SAMPLE COMPOSITION TABLE 2 LIKELIHOOD SCORE TABLE 3 CONSEQUENCE SCORE TABLE 1 DIPRA RECOMMENDATION 1 Sandy Lean Clay 4.5 8 Standard Shop Coat 2 Sandy Lean Clay 4.5 8 Standard Shop Coat 3 Sandy Silt/Sandy Gravel 9.5 8 Standard Shop Coat 4 Sandy Gravel 9.5 8 Standard Shop Coat 5 Silty Sand/Sandy Clay 26.0 8 Enhanced Polyethylene Encasement Notes: 2) For likelihood scores of 1 to 20, the DIPRA recommendation is “as manufactured with shop coat.” 3) For likelihood scores of 21 to 40, the DIPRA recommendation is “V-Bio Enhanced Polyethylene Encasement.” 4) For likelihood scores of 41 to 50, the DIPRA recommendation is “V-Bio Poly Encsmnt w/ Zinc Coated Pipe.” SUMMARY AND RECOMMENDATIONS Based on the typical depth of the water mains (5.0 to 8.0 feet), the pipe will primarily run through a variety of different soil types across the site. The soils will consist of silts, clays, sand, and gravels. Trench backfill during water main installation will consist of a mix of these soils as the layers varied across the site. Five composite samples were collected from across the site at a depth of 4.0 to 8.0 feet for corrosivity potential for ductile iron pipe. Based on laboratory testing results, Samples 1 through 4 consisting of sandy lean clay, sandy silt, and sandy gravel were non-corrosive soil. Sample 5 consisting of silty sand/sandy clay measured a resistivity of 2,000 ohm/cm which can be considered a corrosive soil. According to the DIPRA Decision Model, the likelihood score is the deciding factor for most projects regarding whether a soil is corrosive and to what extent corrosion protection is recommended. Consequence scores (the second input to the decision matrix) must reach a medium to high threshold value before they affect the corrosivity and protections assessment. Since consequence scores are typically low, they are usually of no effect, as in this case. For this project, all five samples scored a consequence score of 8. Based on the DIPRA document, the use of V-Bio Enhanced Polyethylene Bridger View PUD STORY MILL COMMUNITY PARKCOS 2865 PARCEL 3EAST GRIFFIN DRIVE STORY M IL L ROADAREA 1TRACT 23ACOS NO. 25472.27 ACRES GROSS2.18 ACRES NETAREA 3TRACT 1COS NO. 1147A0.51 ACRES GROSS0.47 ACRES NETAREA 5TRACT 3 COSNO. 1147A0.85 AC GROSS0.44 AC NETAREA 6REMAINDER TRACT 4COS NO. 1147B10.16 ACRES GROSS9.58 ACRES NETAREA 2TRACT KCOS NO. 25470.74 ACRES GROSS0.741 ACRES NETAREA 4TRACT 2 COS NO.1147A0.80 ACRES GROSS0.64 ACRES NETHILLSIDE LANE STORY MILLCOMMUNITY PARKSTORY MILLDDDSTORYMILL COMMUNITY PARKHILLSIDE LANE C 1.0EXISTINGCONDITIONSPLANPROFESSIONALENGINEERS &SURVEYORSSTOCKYARD SITE STAHLYENGINEERING& ASSOCIATESWAKE UP INC BOZEMAN MONTANANOTE: PROPOSED STORYMILL ROAD AND BRIDGERVIEW IMPROVMENTS SHOWN AS EXISTING CONDITIONSTPTPTPTPTPTPTP/MONTP/MONTP FIGURECivil Engineering Geotechnical Engineering Land Surveying 32 DISCOVERY DRIVE . BOZEMAN, MT 59718 PHONE (406) 582-0221 . FAX (406) 582-5770 www.alliedengineering.com STOCKYARD PROPERTIES TEST PIT LOCATION MAP BOZEMAN, MONTANA 3 TP# TP-1 MW#N MW-1 TP-2 TP-7 TP-8 MW-4 TP-6 MW-3 TP-4 TP-9 TP-3 MW-2 TP-5 ANALYTICAL SUMMARY REPORT The analyses presented in this report were performed by Energy Laboratories, Inc., 3161 E. Lyndale Ave., Helena, MT 59604, unless otherwise noted. Any exceptions or problems with the analyses are noted in the report package. Any issues encountered during sample receipt are documented in the Work Order Receipt Checklist. The results as reported relate only to the item(s) submitted for testing. This report shall be used or copied only in its entirety. Energy Laboratories, Inc. is not responsible for the consequences arising from the use of a partial report. If you have any questions regarding these test results, please contact your Project Manager. Lab ID Client Sample ID Collect Date Receive Date Matrix Test Report Approved By: H21070054-001 Sample 1, TP-1 [4'-8']06/15/21 13:00 07/02/21 Soil Conductivity, 1:X Water Extractable Anions, Water Extractable Moisture Oxidation Reduction Potential pH, 1:X Water Extractable DI Water Soil Extract ASA10-3 Resistivity Soil Preparation USDA1 Sulfide, Methylene Blue Colorimetric H21070054-002 Sample 2, TP-2 [4'-8']06/15/21 12:00 07/02/21 Soil Conductivity, 1:X Water Extractable Anions, Water Extractable Moisture Oxidation Reduction Potential pH, 1:X Water Extractable DI Water Soil Extract ASA10-3 Resistivity Sulfide, Methylene Blue Colorimetric H21070054-003 Sample 3, TP-5 [4'-8']06/15/21 10:30 07/02/21 Soil Same As Above H21070054-004 Sample 4, TP-6 [4'-8']06/15/21 11:00 07/02/21 Soil Same As Above H21070054-005 Sample 5, TP-8 [4'-8']06/15/21 9:00 07/02/21 Soil Same As Above Allied Engineering Services Inc Project Name:Stockyards Work Order:H21070054 32 S Discovery Dr Bozeman, MT 59718-6958 July 20, 2021 H2173Quote ID: Energy Laboratories Inc Helena MT received the following 5 samples for Allied Engineering Services Inc on 7/2/2021 for analysis. Page 1 of 15 Project:Stockyards CLIENT:Allied Engineering Services Inc Work Order:H21070054 CASE NARRATIVE 07/20/21Report Date: Tests associated with analyst identified as ELI-B were subcontracted to Energy Laboratories, 1120 S. 27th St., Billings, MT, EPA Number MT00005. Page 2 of 15 LABORATORY ANALYTICAL REPORT Client:Allied Engineering Services Inc Project:Stockyards Lab ID:H21070054-001 Client Sample ID:Sample 1, TP-1 [4'-8'] Collection Date:06/15/21 13:00 Matrix:Soil Report Date:07/20/21 DateReceived:07/02/21 Prepared by Helena, MT Branch Analyses Result Units Analysis Date / ByRLMethod MCL/ QCLQualifiers PHYSICAL CHARACTERISTICS 07/06/21 08:40 / sah0.2wt%11.5Moisture D2974 1:X SOIL:WATER 07/09/21 09:27 / swj0.1s.u.8.3pH, 1:2 ASA10-3 WATER EXTRACTABLE 07/10/21 09:44 / JAR1mg/kg7Chloride, 1:2 E300.0 1:X SOIL:WATER 07/09/21 09:09 / swj0.1mmhos/cm0.1Conductivity, 1:2 ASA10-3 PHYSICAL PROPERTIES 07/12/21 13:21 / eli-b23mV198Oxidation-Reduction Potential A2580 BM INORGANICS H 07/09/21 15:36 / JAR0.04mg/LNDSulfide A4500-S D RESISTIVITY OF SOIL 07/09/21 09:17 / swj1ohm-cm7540Resistivity A2510 B Report Definitions: RL - Analyte Reporting Limit MCL - Maximum Contaminant Level QCL - Quality Control Limit ND - Not detected at the Reporting Limit (RL) H - Analysis performed past the method holding time Page 3 of 15 LABORATORY ANALYTICAL REPORT Client:Allied Engineering Services Inc Project:Stockyards Lab ID:H21070054-002 Client Sample ID:Sample 2, TP-2 [4'-8'] Collection Date:06/15/21 12:00 Matrix:Soil Report Date:07/20/21 DateReceived:07/02/21 Prepared by Helena, MT Branch Analyses Result Units Analysis Date / ByRLMethod MCL/ QCLQualifiers PHYSICAL CHARACTERISTICS 07/06/21 08:40 / sah0.2wt%14.2Moisture D2974 1:X SOIL:WATER 07/09/21 09:30 / swj0.1s.u.8.4pH, 1:2 ASA10-3 WATER EXTRACTABLE 07/10/21 09:59 / JAR1mg/kg7Chloride, 1:2 E300.0 1:X SOIL:WATER 07/09/21 09:10 / swj0.1mmhos/cm0.1Conductivity, 1:2 ASA10-3 PHYSICAL PROPERTIES 07/12/21 13:41 / eli-b23mV185Oxidation-Reduction Potential A2580 BM INORGANICS H 07/09/21 15:36 / JAR0.04mg/LNDSulfide A4500-S D RESISTIVITY OF SOIL 07/09/21 09:17 / swj1ohm-cm7450Resistivity A2510 B Report Definitions: RL - Analyte Reporting Limit MCL - Maximum Contaminant Level QCL - Quality Control Limit ND - Not detected at the Reporting Limit (RL) H - Analysis performed past the method holding time Page 4 of 15 LABORATORY ANALYTICAL REPORT Client:Allied Engineering Services Inc Project:Stockyards Lab ID:H21070054-003 Client Sample ID:Sample 3, TP-5 [4'-8'] Collection Date:06/15/21 10:30 Matrix:Soil Report Date:07/20/21 DateReceived:07/02/21 Prepared by Helena, MT Branch Analyses Result Units Analysis Date / ByRLMethod MCL/ QCLQualifiers PHYSICAL CHARACTERISTICS 07/06/21 08:40 / sah0.2wt%7.9Moisture D2974 1:X SOIL:WATER 07/09/21 09:32 / swj0.1s.u.8.3pH, 1:2 ASA10-3 WATER EXTRACTABLE 07/10/21 10:13 / JAR1mg/kg7Chloride, 1:2 E300.0 1:X SOIL:WATER 07/09/21 09:10 / swj0.1mmhos/cm0.2Conductivity, 1:2 ASA10-3 PHYSICAL PROPERTIES 07/12/21 14:01 / eli-b23mV246Oxidation-Reduction Potential A2580 BM INORGANICS H 07/09/21 15:36 / JAR0.04mg/LNDSulfide A4500-S D RESISTIVITY OF SOIL 07/09/21 09:17 / swj1ohm-cm4550Resistivity A2510 B Report Definitions: RL - Analyte Reporting Limit MCL - Maximum Contaminant Level QCL - Quality Control Limit ND - Not detected at the Reporting Limit (RL) H - Analysis performed past the method holding time Page 5 of 15 LABORATORY ANALYTICAL REPORT Client:Allied Engineering Services Inc Project:Stockyards Lab ID:H21070054-004 Client Sample ID:Sample 4, TP-6 [4'-8'] Collection Date:06/15/21 11:00 Matrix:Soil Report Date:07/20/21 DateReceived:07/02/21 Prepared by Helena, MT Branch Analyses Result Units Analysis Date / ByRLMethod MCL/ QCLQualifiers PHYSICAL CHARACTERISTICS 07/06/21 08:40 / sah0.2wt%9.4Moisture D2974 1:X SOIL:WATER 07/09/21 09:36 / swj0.1s.u.8.2pH, 1:2 ASA10-3 WATER EXTRACTABLE 07/10/21 10:42 / JAR1mg/kg11Chloride, 1:2 E300.0 1:X SOIL:WATER 07/09/21 09:11 / swj0.1mmhos/cm0.2Conductivity, 1:2 ASA10-3 PHYSICAL PROPERTIES 07/12/21 14:17 / eli-b23mV235Oxidation-Reduction Potential A2580 BM INORGANICS H 07/09/21 15:36 / JAR0.04mg/LNDSulfide A4500-S D RESISTIVITY OF SOIL 07/09/21 09:17 / swj1ohm-cm5610Resistivity A2510 B Report Definitions: RL - Analyte Reporting Limit MCL - Maximum Contaminant Level QCL - Quality Control Limit ND - Not detected at the Reporting Limit (RL) H - Analysis performed past the method holding time Page 6 of 15 LABORATORY ANALYTICAL REPORT Client:Allied Engineering Services Inc Project:Stockyards Lab ID:H21070054-005 Client Sample ID:Sample 5, TP-8 [4'-8'] Collection Date:06/15/21 09:00 Matrix:Soil Report Date:07/20/21 DateReceived:07/02/21 Prepared by Helena, MT Branch Analyses Result Units Analysis Date / ByRLMethod MCL/ QCLQualifiers PHYSICAL CHARACTERISTICS 07/06/21 08:40 / sah0.2wt%18.5Moisture D2974 1:X SOIL:WATER 07/09/21 09:38 / swj0.1s.u.8.1pH, 1:2 ASA10-3 WATER EXTRACTABLE 07/10/21 11:25 / JAR1mg/kg29Chloride, 1:2 E300.0 1:X SOIL:WATER 07/09/21 09:12 / swj0.1mmhos/cm0.5Conductivity, 1:2 ASA10-3 PHYSICAL PROPERTIES 07/12/21 14:20 / eli-b23mV225Oxidation-Reduction Potential A2580 BM INORGANICS H 07/09/21 15:36 / JAR0.04mg/LNDSulfide A4500-S D RESISTIVITY OF SOIL 07/09/21 09:17 / swj1ohm-cm2000Resistivity A2510 B Report Definitions: RL - Analyte Reporting Limit MCL - Maximum Contaminant Level QCL - Quality Control Limit ND - Not detected at the Reporting Limit (RL) H - Analysis performed past the method holding time Page 7 of 15 Client:Allied Engineering Services Inc Work Order:H21070054 QA/QC Summary Report 07/20/21Report Date: Analyte Result %REC RPDLow Limit High Limit RPDLimitRLUnits QualCount Prepared by Helena, MT Branch Method:A2510 B Batch: R166416 Lab ID:H21070035-002ADUP 07/09/21 09:17Sample Duplicate Run: SOIL EC_210709B Resistivity 101.0 3.33810ohm-cm Qualifiers: RL - Analyte Reporting Limit ND - Not detected at the Reporting Limit (RL) Page 8 of 15 Client:Allied Engineering Services Inc Work Order:H21070054 QA/QC Summary Report 07/20/21Report Date: Analyte Result %REC RPDLow Limit High Limit RPDLimitRLUnits QualCount Prepared by Helena, MT Branch Method:A2580 BM Batch: B_R363755 Lab ID:LCS1 07/12/21 12:13Laboratory Control Sample Run: SUB-B363755 Oxidation-Reduction Potential 100 95 105234mV Lab ID:H21070054-001B 07/12/21 13:31Sample Duplicate Run: SUB-B363755 Oxidation-Reduction Potential 100.1198mV Qualifiers: RL - Analyte Reporting Limit ND - Not detected at the Reporting Limit (RL) Page 9 of 15 Client:Allied Engineering Services Inc Work Order:H21070054 QA/QC Summary Report 07/20/21Report Date: Analyte Result %REC RPDLow Limit High Limit RPDLimitRLUnits QualCount Prepared by Helena, MT Branch Method:A4500-S D Analytical Run: GENESYS 20_210709B Lab ID:CCV 07/09/21 15:36Continuing Calibration Verification Standard Sulfide 99 85 1150.0400.495 mg/L Lab ID:CCB 07/09/21 15:36Continuing Calibration Blank Sulfide 0.040-0.000662 mg/L Method:A4500-S D Batch: R166432 Lab ID:MBLK 07/09/21 15:36Method Blank Run: GENESYS 20_210709B Sulfide 0.005NDmg/L Lab ID:LCS 07/09/21 15:36Laboratory Control Sample Run: GENESYS 20_210709B Sulfide 105 85 1150.0400.226 mg/L Lab ID:H21070054-001BDUP 07/09/21 15:36Sample Duplicate Run: GENESYS 20_210709B Sulfide 200.040NDmg/L Lab ID:H21070054-004BMS 07/09/21 15:36Sample Matrix Spike Run: GENESYS 20_210709B Sulfide 102 70 1300.101.10 mg/L Lab ID:H21070054-004BMSD 07/09/21 15:36Sample Matrix Spike Duplicate Run: GENESYS 20_210709B Sulfide 97 70 130 200.10 5.11.04 mg/L Qualifiers: RL - Analyte Reporting Limit ND - Not detected at the Reporting Limit (RL) Page 10 of 15 Client:Allied Engineering Services Inc Work Order:H21070054 QA/QC Summary Report 07/20/21Report Date: Analyte Result %REC RPDLow Limit High Limit RPDLimitRLUnits QualCount Prepared by Helena, MT Branch Method:ASA10-3 Analytical Run: SOIL EC_210709B Lab ID:ICV_1_210709CO 07/09/21 09:05Initial Calibration Verification Standard Conductivity, 1:2 98 90 1100.101.38 mmhos/cm Lab ID:CCV_1_210709CO 07/09/21 09:07Continuing Calibration Verification Standard Conductivity, 1:2 96 90 1100.104.78 mmhos/cm Lab ID:CCV1_1_210709CO 07/09/21 09:07Continuing Calibration Verification Standard Conductivity, 1:2 92 90 1100.100.916 mmhos/cm Method:ASA10-3 Batch: 56931 Lab ID:MB-56931 07/09/21 09:08Method Blank Run: SOIL EC_210709B Conductivity, 1:2 0.1NDmmhos/cm Lab ID:LCS-56931 07/09/21 09:09Laboratory Control Sample Run: SOIL EC_210709B Conductivity, 1:2 98 70 1300.101.13 mmhos/cm Lab ID:H21070054-003ADUP 07/09/21 09:10Sample Duplicate Run: SOIL EC_210709B Conductivity, 1:2 100.10 1.50.223 mmhos/cm Method:ASA10-3 Analytical Run: SOIL PH METER - ORION A211_210709B Lab ID:ICV_1_210709_1 07/09/21 09:21Initial Calibration Verification Standard pH, 1:2 100 98.6 101.40.107.03 s.u. Lab ID:CCV_1_210709_1 07/09/21 09:22Continuing Calibration Verification Standard pH, 1:2 100 98.6 101.40.107.02 s.u. Lab ID:CCV1_1_210709_1 07/09/21 09:22Continuing Calibration Verification Standard pH, 1:2 101 97.5 102.50.104.03 s.u. Method:ASA10-3 Batch: 56931 Lab ID:LCS-56931 07/09/21 09:25Laboratory Control Sample Run: SOIL PH METER - ORION A2 pH, 1:2 100 95 1050.108.38 s.u. Lab ID:H21070054-003ADUP 07/09/21 09:33Sample Duplicate Run: SOIL PH METER - ORION A2 pH, 1:2 200.10 0.58.37 s.u. Qualifiers: RL - Analyte Reporting Limit ND - Not detected at the Reporting Limit (RL) Page 11 of 15 Client:Allied Engineering Services Inc Work Order:H21070054 QA/QC Summary Report 07/20/21Report Date: Analyte Result %REC RPDLow Limit High Limit RPDLimitRLUnits QualCount Prepared by Helena, MT Branch Method:D2974 Batch: PMOIST_210706_A Lab ID:H21070054-003A DUP 07/06/21 08:40Sample Duplicate Run: SOIL DRYING OVEN 2_21071 Moisture 200.20 199.63 wt% Qualifiers: RL - Analyte Reporting Limit ND - Not detected at the Reporting Limit (RL) Page 12 of 15 Client:Allied Engineering Services Inc Work Order:H21070054 QA/QC Summary Report 07/20/21Report Date: Analyte Result %REC RPDLow Limit High Limit RPDLimitRLUnits QualCount Prepared by Helena, MT Branch Method:E300.0 Analytical Run: IC METROHM_210709A Lab ID:ICV 07/09/21 12:21Initial Calibration Verification Standard Chloride 103 90 1101.0103mg/L Lab ID:CCV 07/09/21 17:10Continuing Calibration Verification Standard Chloride 103 90 1101.051.4 mg/L Lab ID:CCB 07/09/21 17:39Continuing Calibration Blank Chloride 1.0NDmg/L Method:E300.0 Batch: 56931 Lab ID:MB-56931 07/10/21 09:16Method Blank Run: IC METROHM_210709A Chloride, 1:2 0.008NDmg/kg Lab ID:LCS-56931 07/10/21 09:30Laboratory Control Sample Run: IC METROHM_210709A Chloride, 1:2 109 70 1301.0169mg/kg Lab ID:H21070054-003ADUP 07/10/21 10:28Sample Duplicate Run: IC METROHM_210709A Chloride, 1:2 201.0 145.98 mg/kg Lab ID:H21070054-005AMS 07/10/21 11:40Sample Matrix Spike Run: IC METROHM_210709A Chloride, 1:2 99 90 1101.0276mg/kg Qualifiers: RL - Analyte Reporting Limit ND - Not detected at the Reporting Limit (RL) Page 13 of 15 Shipping container/cooler in good condition? Custody seals intact on all shipping container(s)/cooler(s)? Custody seals intact on all sample bottles? Chain of custody present? Chain of custody signed when relinquished and received? Chain of custody agrees with sample labels? Samples in proper container/bottle? Sample containers intact? Sufficient sample volume for indicated test? All samples received within holding time? (Exclude analyses that are considered field parameterssuch as pH, DO, Res Cl, Sulfite, Ferrous Iron, etc.) Container/Temp Blank temperature: Water - VOA vials have zero headspace? Water - pH acceptable upon receipt? Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No No No No No No No No No No No R £ £ £ R R £ R R R R £ £ £ £ £ £ R £ £ £ £ £ £ Not Present Not Present Not Present £ R R No VOA vials submitted Not Applicable R R 23.3°C No Ice 7/2/2021Rebecca A. Tooke FedEx Ground RAT Date Received: Received by: Login completed by: Carrier name: BL2000\sdull 7/14/2021 Reviewed by: Reviewed Date: Contact and Corrective Action Comments: No times on bags. Used times from COC. Emailed client for clarification of depths. We are to use 4'-8' for all depths. 7/2/21 rt Temp Blank received in all shipping container(s)/cooler(s)?Yes No£R Not Applicable £ Lab measurement of analytes considered field parameters that require analysis within 15 minutes of sampling such as pH, Dissolved Oxygen and Residual Chlorine, are qualified as being analyzed outside of recommended holding time. Solid/soil samples are reported on a wet weight basis (as received) unless specifically indicated. If moisture corrected, data units are typically noted as –dry. For agricultural and mining soil parameters/characteristics, all samples are dried and ground prior to sample analysis. Radiochemical precision results represent a 2-sigma Total Measurement Uncertainty. Standard Reporting Procedures: Work Order Receipt Checklist Allied Engineering Services Inc H21070054 Page 14 of 15 Page 15 of 15 Stockyards: Sample 1 (TP-1 @ 4.0' - 8.0') L=4.5, C=8 7540 7 ppm 11.5% N/A 8.3 198 Yes = 0 = 0 = 2.5 = 0 =0 ND = 0 = 2 = 0 N/A Total Score = 4.5 *ND = Not detected above laboratory detection limits. See laboratory analytical results for specific detection limits. Stockyards: Sample 1 (TP-1 @ 4.0' - 8.0') Stockyards: Sample 1 (TP-1@ 4.0' - 8.0') = 0 = 8 = 0 = 0 Total Score = 8 Stockyards: Sample 2 (TP-2 @ 4.0' - 8.0') L=4.5, C=8 7450 7 ppm 14.2% N/A 8.4 185 Yes = 0 = 0 = 2.5 = 0 =0 ND = 0 = 2 = 0 N/A Total Score = 4.5 Stockyards: Sample 2 (TP-2 @ 4.0' - 8.0') *ND = Not detected above laboratory detection limits. See laboratory analytical results for specific detection limits. Stockyards: Sample 2 (TP-2 @ 4.0' - 8.0') = 0 = 8 = 0 = 0 Total Score = 8 Stockyards: Sample 3 (TP-5 @ 4.0' - 8.0') L=9.5, C=8 4450 7 ppm 7.9% N/A 8.3 246 Yes = 5 = 0 = 2.5 = 0 =0 ND = 0 = 2 = 0 N/A Total Score = 9.5 Stockyards: Sample 3 (TP-5 @ 4.0' - 8.0') *ND = Not detected above laboratory detection limits. See laboratory analytical results for specific detection limits. Stockyards: Sample 3 (TP-5 @ 4.0' - 8.0') = 0 = 8 = 0 = 0 Total Score = 8 Stockyards: Sample 4 (TP-6 @ 4.0' - 8.0') L=9.5, C=8 5610 11 ppm 9.4% Yes 8.2 235 Yes = 0 = 0 = 2.5 = 5 =0 ND = 0 = 2 = 0 N/A Total Score = 9.5 Stockyards: Sample 4 (TP-6 @ 4.0' - 8.0') *ND = Not detected above laboratory detection limits. See laboratory analytical results for specific detection limits. Stockyards: Sample 4 (TP-6 @ 4.0' - 8.0') = 0 = 8 = 0 = 0 Total Score = 8 Stockyards: Sample 5 (TP-8 @ 4.0' - 8.0') L=26, C=8 2000 29 ppm 18.5% NA 8.1 225 Yes = 19 = 0 = 5.0 = 0 =0 ND = 0 = 2 = 0 N/A Total Score = 26 Stockyards: Sample 5 (TP-8 @ 4.0' - 8.0') *ND = Not detected above laboratory detection limits. See laboratory analytical results for specific detection limits. Stockyards: Sample 5 (TP-8 @ 4.0' - 8.0') = 0 = 8 = 0 = 0 Total Score = 8