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Home My WebLink About029 Soil Corrosivity Testing1091 Stoneridge Drive • Bozeman, Montana • Phone (406) 587-1115 • Fax (406) 587-9768 www.chengineers.com • E-Mail: info@chengineers.com Civil/Structural Engineering and Surveying April 26, 2021 Griffin Nielsen City of Bozeman Engineering Department 20 E. Olive Street Bozeman, MT 59718 RE: Soil Corrosivity Test Results – Norton East Ranch Subdivision Phase 5 (161141) Mr. Nielsen: This letter is to provide a summary of the soil corrosivity testing on two soil samples obtained from two test pits located in Norton Ranch East Phase 5. This information is being provided to satisfy the requirements of Section 02660 – Water Distribution, 3.3 – Polyethylene Encasement of the City of Bozeman Modifications to Montana Public Works Standard Specifications, 6th Edition (March 2011 w/ Addendums through 2017). It was determined that zinc-coating (cathodic protection) and polyethylene encasement are not warranted for proposed ductile iron water mains at the Norton Ranch Subdivision Phase 5. The Design Decision Model (DDM) by Corrpro and the Ductile Iron Pipe Research Association (DIPRA) was used in conjunction with soils test results provided by Energy Laboratories in Billings, MT to determine whether zinc-coated pipe would be warranted for this project. The DDM requires the calculation of two site-specific factors; the Likelihood Score and the Consequence Score. Based on the soils test results, the average Likelihood Score for the two soil samples obtained was calculated as 18.5, with no individual sample score greater than 21. The Consequence Score was calculated to be 11. Using these two scores and the DDM Two-Dimensional Matrix (see attached Figure 1) it was determined that zinc- coating and polyethylene wrap are not warranted. The DDM Two-Dimensional Matrix yields a recommendation of Category 1. The recommendation for Category 1 is that the manufacture’s shop coat is sufficient (see attached Table 1). If you require any further information, please give me a call at (406) 587-1115. Sincerely: Drew Kirsch, E.I. Enclosure: DDM Figure 1 and Table 1 DDM Table 2 – Likelihood Score Sheet DDM Table 3 – Consequence Score Sheet Energy Laboratories Test results Summary of results Test Pit location map 03/03/23 22203 Norton East Ranch Ph. 5B FP 5 < 500 ohm-cm 30 500 - 1000 ohm-cm 25 > 1000 - 1500 ohm-cm 22 > 1500 - 2000 ohm-cm 19 > 2000 - 3000 ohm-cm 10 > 3000 - 5000 ohm-cm 5 > 5000 ohm-cm 0 > 100 ppm = positive 8 50 - 100 ppm = trace 3 < 50 ppm = negative 0 > 15% = Wet 5 5 - 15% = Moist 2.5 < 5% = Dry 0 Pipe below the water 5 table at any time pH 0 - 4 4 pH > 4 - 6 1 pH 6 - 8, with sulfides and low or negative redox 4 pH > 6 0 positive ( 1 ppm)4 trace ( > 0 and < 1 ppm)1.5 negative ( 0 ppm)0 = negative 2 = positive 0 - 100 mv 1 = positive > 100 mv 0 Connected to noble metals 2 (e.g. copper) - yes Connected to noble metals 0 (e.g. copper) - no TOTAL POSSIBLE POINTS Cinders, Mine Waste, Peat Bog, Landfill, Fly Ash, Coal RESISTIVITY CHLORIDES MOISTURE CONTENT GROUND WATER INFLUENCE pH SULFIDE IONS REDOX POTENTIAL BI-METALLIC CONSIDERATIONS Known Corrosive Environments POINTS 30 8 5 5 4 4 2 2 60 21 * Soils with Known Corrosive Environments shall be assigned 21 points or the total of points for Likelihood Factors, whichever is greater. Likelihood Score Sheet TABLE 2 – > – > MAXIMUM POSSIBLE POINTS LIKELIHOOD FACTOR 6 DIPRA and Corrpro again listened to the needs of utility operators and recognized the differences between long, large diameter, straight-run transmission mains and the more complicated networks of distribution pipelines that bring water to our neighborhoods and businesses. The result provides a more practical solution for pipeline networks that comprise the distribution systems within a utility’s service area. The use of V-Bio® enhanced polyethylene encasement in conjunction with metallized zinc provides water operators with an effective alternative to controlling corrosion in distribution systems. 3” to 24”0 30” to 36”8 42” to 48”12 54” to 64”22 Routine (Fair to good access, minimal traffic/other utility 0 consideration, etc.) Moderate (Typical business/ residential areas, some right 8 of way limitations, etc.) Difficult (Subaqueous crossings, downtown metropolitan business areas, 20 multiple utilities congestion, swamps, etc.) 0 to 10 feet depth 0 > 10 to 20 feet depth 3 > 20 feet depth 5 Alternate supply available - no 3 Alternate supply available - yes 0 TOTAL POSSIBLE POINTS PIPE SERVICE LOCATION: Construction-Repair Considerations DEPTH OF COVER CONSIDERATIONS ALTERNATE WATER SUPPLY POINTS 22 20 5 3 50 Consequence Score Sheet TABLE 3 The revised DDM® recognizes the practical differences in corrosion control needs between transmission mains and distribution systems. MAXIMUM POSSIBLE POINTS CONSEQUENCE FACTOR Consequence Score for Norton Ranch Phase 5 Consequence factor Result Points Pipe Service 3" to 24"0 Location Moderate 8 Depth of cover 0 to 10 feet 0 Alt. water supply No 3 TOTAL ‐11 Based on a Consequence Score of 11, a likelihood score of 18.5 requires Zinc coated pipe. See Corrpro and DIPRA DDM Figure 1. Sample ID Likelihood score NS1 16 NS2 21 AVERAGE 18.5 Based on soil test results, zinc pipe is not required. Test pit summary table Test Pit ID NS1 Location ‐ Sample type Soil Likelihood factor Result Points Resistivity (ohm‐cm) 5820 0 Chlorides (ppm) 4 0 Moisture Content (%) 21.7 5 Groundwater influence Yes 5 pH 8.7 0 Sulfide Ions (ppm) 4 Redox Potential (mv) 318 0 Bi‐Metallic Yes 2 TOTAL ‐ 16 Test Pit ID NS2 Location ‐ Sample type Soil Likelihood factor Result Points Resistivity (ohm‐cm) 4500 5 Chlorides (ppm) 27 0 Moisture Content (%) 24.9 5 Groundwater influence Yes 5 pH 7.9 0 Sulfide Ions (ppm) 4 Redox Potential (mv) 288 0 Bi‐Metallic Yes 2 TOTAL ‐ 21 ANALYTICAL SUMMARY REPORT The analyses presented in this report were performed by Energy Laboratories, Inc., 1120 S 27th St., Billings, MT 59101, unless otherwise noted. Any exceptions or problems with the analyses are noted in the Laboratory Analytical Report, the QA/QC Summary Report, or the Case Narrative. 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: B21031571-001 NW1 03/18/21 15:28 03/19/21 Aqueous Metals by ICP/ICPMS, Dissolved Alkalinity Conductivity Langelier Index pH Preparation, Dissolved Filtration MCAWW Preparation for TDS A2540 C Solids, Total Dissolved B21031571-002 NW2 03/18/21 15:45 03/19/21 Aqueous Same As Above B21031571-003 NS1 03/18/21 11:58 03/19/21 Soil Conductivity, 1:X Water Extractable Anions, Water Extractable Moisture Oxidation Reduction Potential pH of Soil and Waste pH, 1:X Water Extractable DI Water Soil Extract ASA10-3 Resistivity B21031571-004 NS2 03/18/21 12:18 03/19/21 Soil Same As Above C and H Engineering Bozeman Project Name: Norton Ranch Phase 5 (161141) Work Order: B21031571 1091 Stone Ridge Dr Bozeman, MT 59718-7042 April 07, 2021 Energy Laboratories Inc Billings MT received the following 4 samples for C and H Engineering Bozeman on 3/19/2021 for analysis. Page 1 of 18 Project: Norton Ranch Phase 5 (161141) CLIENT: C and H Engineering Bozeman Work Order: B21031571 CASE NARRATIVE 03/26/21Report Date: Revised Date: 04/07/21 Revised Date: 4/7/2021 Revised Sample(s): NS1 (B21031571-003) NS2 (B21031571-004) On 3/29/2021 a request was received from Noah Schaible to revise this workorder by adding Conductivity, Anions, Moisture, Oxidation Reduction Potential, pH and Resistivity. The report has been revised and replaces any previously issued report in its entirety. Page 2 of 18 LABORATORY ANALYTICAL REPORT Client: C and H Engineering Bozeman Project: Norton Ranch Phase 5 (161141) Lab ID: B21031571-001 Client Sample ID: NW1 Collection Date: 03/18/21 15:28 Matrix: Aqueous Report Date: 03/26/21 DateReceived: 03/19/21 Revised Date: 04/07/21Prepared by Billings, MT Branch Analyses Result Units Analysis Date / ByRLMethod MCL/ QCL Qualifiers PHYSICAL PROPERTIES H 03/24/21 11:23 / mh0.1s.u. 7.4 pH A4500-H B 03/24/21 11:23 / mhC10 pH Measurement Temp A4500-H B 03/19/21 18:05 / mh5umhos/cm354 Conductivity @ 25 C A2510 B 03/26/21 11:34 / bap-0.1Corrosivity (Langelier Index) A2330 B 03/22/21 14:28 / car10mg/L250 Solids, Total Dissolved TDS @ 180 C A2540 C - Langelier was calculated using a default temperature of 20 degrees C. INORGANICS 03/23/21 16:48 / mh4mg/L134Alkalinity, Total as CaCO3 A2320 B 03/23/21 16:48 / mh4mg/L163Bicarbonate as HCO3 A2320 B 03/23/21 16:48 / mh4mg/LNDCarbonate as CO3 A2320 B METALS, DISSOLVED 03/23/21 13:09 / rlh1mg/L46 Calcium E200.7 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 18 LABORATORY ANALYTICAL REPORT Client: C and H Engineering Bozeman Project: Norton Ranch Phase 5 (161141) Lab ID: B21031571-002 Client Sample ID: NW2 Collection Date: 03/18/21 15:45 Matrix: Aqueous Report Date: 03/26/21 DateReceived: 03/19/21 Revised Date: 04/07/21Prepared by Billings, MT Branch Analyses Result Units Analysis Date / ByRLMethod MCL/ QCL Qualifiers PHYSICAL PROPERTIES H 03/24/21 11:26 / mh0.1s.u. 7.8 pH A4500-H B 03/24/21 11:26 / mhC11 pH Measurement Temp A4500-H B 03/24/21 11:26 / mh5umhos/cm237 Conductivity @ 25 C A2510 B 03/26/21 11:35 / bap0.6Corrosivity (Langelier Index) A2330 B 03/22/21 14:28 / car10mg/L281 Solids, Total Dissolved TDS @ 180 C A2540 C - Langelier was calculated using a default temperature of 20 degrees C. INORGANICS 03/23/21 16:53 / mh4mg/L258Alkalinity, Total as CaCO3 A2320 B 03/23/21 16:53 / mh4mg/L314Bicarbonate as HCO3 A2320 B 03/23/21 16:53 / mh4mg/LNDCarbonate as CO3 A2320 B METALS, DISSOLVED 03/23/21 13:21 / rlh1mg/L65 Calcium E200.7 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 18 LABORATORY ANALYTICAL REPORT Client: C and H Engineering Bozeman Project: Norton Ranch Phase 5 (161141) Lab ID: B21031571-003 Client Sample ID: NS1 Collection Date: 03/18/21 11:58 Matrix: Soil Report Date: 03/26/21 DateReceived: 03/19/21 Revised Date: 04/07/21Prepared by Billings, MT Branch Analyses Result Units Analysis Date / ByRLMethod MCL/ QCL Qualifiers PHYSICAL CHARACTERISTICS 03/30/21 15:36 / jlw0.2wt%21.7 Moisture D2974 WATER EXTRACTABLE CONSTITUENTS 04/01/21 17:23 / srm0.1mmhos/cm0.2Conductivity, 1:2 ASA10-3 04/01/21 17:23 / srm0.1s.u.7.7pH, 1:2 ASA10-3 04/02/21 10:26 / mrc1mg/kg4Chloride, 1:2 E300.0 04/02/21 10:26 / mrc1mg/kg14Sulfate, 1:2 E300.0 PHYSICAL PROPERTIES 04/01/21 13:03 / jlwmV 318 Oxidation-Reduction Potential A2580 BM CORROSIVITY 03/23/21 14:39 / jlw0.1s.u.8.7pH SW9045D 03/23/21 14:39 / jlwC15pH Measurement Temp SW9045D RESISTIVITY OF SOIL 04/01/21 14:00 / srm1ohm-cm 5820 Resistivity A2510 B Report Definitions: RL - Analyte Reporting Limit MCL - Maximum Contaminant Level QCL - Quality Control Limit ND - Not detected at the Reporting Limit (RL) Page 5 of 18 LABORATORY ANALYTICAL REPORT Client: C and H Engineering Bozeman Project: Norton Ranch Phase 5 (161141) Lab ID: B21031571-004 Client Sample ID: NS2 Collection Date: 03/18/21 12:18 Matrix: Soil Report Date: 03/26/21 DateReceived: 03/19/21 Revised Date: 04/07/21Prepared by Billings, MT Branch Analyses Result Units Analysis Date / ByRLMethod MCL/ QCL Qualifiers PHYSICAL CHARACTERISTICS 03/30/21 15:37 / jlw0.2wt%24.9 Moisture D2974 WATER EXTRACTABLE CONSTITUENTS 04/01/21 17:23 / srm0.1mmhos/cm0.2Conductivity, 1:2 ASA10-3 04/01/21 17:23 / srm0.1s.u.7.9pH, 1:2 ASA10-3 04/02/21 10:42 / mrc1mg/kg27Chloride, 1:2 E300.0 04/02/21 10:42 / mrc1mg/kg8Sulfate, 1:2 E300.0 PHYSICAL PROPERTIES 04/01/21 13:13 / jlwmV 288 Oxidation-Reduction Potential A2580 BM CORROSIVITY 03/23/21 14:41 / jlw0.1s.u.8.6pH SW9045D 03/23/21 14:41 / jlwC16pH Measurement Temp SW9045D RESISTIVITY OF SOIL 04/01/21 14:00 / srm1ohm-cm 4500 Resistivity A2510 B Report Definitions: RL - Analyte Reporting Limit MCL - Maximum Contaminant Level QCL - Quality Control Limit ND - Not detected at the Reporting Limit (RL) Page 6 of 18 Client: C and H Engineering Bozeman Work Order: B21031571 QA/QC Summary Report 03/26/21Report Date: Analyte Result %REC RPD Low Limit High Limit RPDLimit RL Units QualCount Prepared by Billings, MT Branch Method: A2320 B Batch: R358036 Lab ID: MBLK 03/23/21 15:52Method Blank Run: METROHM 2_210323A Alkalinity, Total as CaCO3 4ND mg/L Lab ID: LCS 03/23/21 15:56Laboratory Control Sample Run: METROHM 2_210323A Alkalinity, Total as CaCO3 101 90 1104.0 101 mg/L Lab ID: B21031673-001ADUP 03/23/21 16:08Sample Duplicate Run: METROHM 2_210323A3 Alkalinity, Total as CaCO3 104.0 0.0468 mg/L Bicarbonate as HCO3 104.0 0.0570 mg/L Carbonate as CO3 104.0ND mg/L Lab ID: B21031236-004AMS 03/23/21 16:20Sample Matrix Spike Run: METROHM 2_210323A Alkalinity, Total as CaCO3 98 80 1204.0446 mg/L Qualifiers: RL - Analyte Reporting Limit ND - Not detected at the Reporting Limit (RL) Page 7 of 18 Client: C and H Engineering Bozeman Work Order: B21031571 QA/QC Summary Report 03/26/21Report Date: Analyte Result %REC RPD Low Limit High Limit RPDLimit RL Units QualCount Prepared by Billings, MT Branch Method: A2510 B Batch: R357889 Lab ID: SC 2nd 1413 03/19/21 09:59Laboratory Control Sample Run: PHSC _101-B_210319A Conductivity @ 25 C 99 90 1105.0 1394 umhos/cm Lab ID: MBLK 03/19/21 17:35Method Blank Run: PHSC _101-B_210319A Conductivity @ 25 C 5ND umhos/cm Lab ID: B21031571-002ADUP 03/19/21 18:10Sample Duplicate Run: PHSC _101-B_210319A Conductivity @ 25 C 10 5.0 67466 umhos/cm R Method: A2510 B Batch: R358114 Lab ID: SC 2nd 1413 03/24/21 09:50Laboratory Control Sample Run: PHSC _101-B_210324A Conductivity @ 25 C 96 90 1105.0 1358 umhos/cm Lab ID: MBLK 03/24/21 10:03Method Blank Run: PHSC _101-B_210324A Conductivity @ 25 C 5ND umhos/cm Lab ID: B21031725-001ADUP 03/24/21 10:08Sample Duplicate Run: PHSC _101-B_210324A Conductivity @ 25 C 105.0 1.02208 umhos/cm Lab ID: B21031760-004ADUP 03/24/21 11:48Sample Duplicate Run: PHSC _101-B_210324A Conductivity @ 25 C 105.0 1.3236 umhos/cm Qualifiers: RL - Analyte Reporting Limit ND - Not detected at the Reporting Limit (RL) R - Relative Percent Difference (RPD) exceeds advisory limit Page 8 of 18 Client: C and H Engineering Bozeman Work Order: B21031571 QA/QC Summary Report 03/26/21Report Date: Analyte Result %REC RPD Low Limit High Limit RPDLimit RL Units QualCount Prepared by Billings, MT Branch Method: A2540 C Batch: 153781 Lab ID: MB-153781 03/22/21 14:27Method Blank Run: BAL #30_210322B Solids, Total Dissolved TDS @ 180 C ND mg/L Lab ID: LCS-153781 03/22/21 14:27Laboratory Control Sample Run: BAL #30_210322B Solids, Total Dissolved TDS @ 180 C 101 90 11010 1008 mg/L Lab ID: B21031423-006A DUP 03/22/21 14:27Sample Duplicate Run: BAL #30_210322B Solids, Total Dissolved TDS @ 180 C 5104.2183 mg/L Lab ID: B21031578-005A DUP 03/22/21 14:29Sample Duplicate Run: BAL #30_210322B Solids, Total Dissolved TDS @ 180 C 5100.7340 mg/L Qualifiers: RL - Analyte Reporting Limit ND - Not detected at the Reporting Limit (RL) Page 9 of 18 Client: C and H Engineering Bozeman Work Order: B21031571 QA/QC Summary Report 03/26/21Report Date: Analyte Result %REC RPD Low Limit High Limit RPDLimit RL Units QualCount Prepared by Billings, MT Branch Method: A4500-H B Analytical Run: PHSC _101-B_210324A Lab ID: pH 8 03/24/21 09:37Initial Calibration Verification Standard 2 pH 100 98 1020.10 8.01 s.u. pH Measurement Temp 19.0 C Method: A4500-H B Batch: R358114 Lab ID: B21031725-001ADUP 03/24/21 10:08Sample Duplicate Run: PHSC _101-B_210324A2 pH 30.10 0.18.18 s.u. pH Measurement Temp 15.1 C Lab ID: B21031760-004ADUP 03/24/21 11:48Sample Duplicate Run: PHSC _101-B_210324A2 pH 30.10 0.07.07 s.u. pH Measurement Temp 11.7 C Qualifiers: RL - Analyte Reporting Limit ND - Not detected at the Reporting Limit (RL) Page 10 of 18 Client: C and H Engineering Bozeman Work Order: B21031571 QA/QC Summary Report 03/26/21Report Date: Analyte Result %REC RPD Low Limit High Limit RPDLimit RL Units QualCount Prepared by Billings, MT Branch Method: E200.7 Analytical Run: ICP203-B_210323A Lab ID: ICV 03/23/21 11:34Continuing Calibration Verification Standard Calcium 101 95 1051.0 25.2 mg/L Method: E200.7 Batch: R358046 Lab ID: MB-6500DIS210323A 03/23/21 10:15Method Blank Run: ICP203-B_210323A Calcium 0.3ND mg/L Lab ID: LFB-6500DIS210323A 03/23/21 10:23Laboratory Fortified Blank Run: ICP203-B_210323A Calcium 98 85 1151.0 49.2 mg/L Lab ID: MB-153772 03/23/21 12:52Method Blank Run: ICP203-B_210323A Calcium 0.3ND mg/L Lab ID: B21031571-002BMS2 03/23/21 13:25Sample Matrix Spike Run: ICP203-B_210323A Calcium 94 70 1301.0112 mg/L Lab ID: B21031571-002BMSD 03/23/21 13:29Sample Matrix Spike Duplicate Run: ICP203-B_210323A Calcium 94 70 130 201.0 0.2112 mg/L Qualifiers: RL - Analyte Reporting Limit ND - Not detected at the Reporting Limit (RL) Page 11 of 18 Client: C and H Engineering Bozeman Work Order: B21031571 QA/QC Summary Report 03/26/21Report Date: Analyte Result %REC RPD Low Limit High Limit RPDLimit RL Units QualCount Prepared by Billings, MT Branch Method: SW9045D Analytical Run: ORION 720A HZW_210323A Lab ID: ICV 03/23/21 14:10Initial Calibration Verification Standard 2 pH 100 98 1020.10 7.97 s.u. pH Measurement Temp 0 015.8 C Method: SW9045D Batch: R358079 Lab ID: B21031392-001ADUP 03/23/21 15:16Sample Duplicate Run: ORION 720A HZW_210323A2 pH 30.10 1.28.12 s.u. pH Measurement Temp 14.2 C Qualifiers: RL - Analyte Reporting Limit ND - Not detected at the Reporting Limit (RL) Page 12 of 18 Client: C and H Engineering Bozeman Work Order: B21031571 QA/QC Summary Report 03/26/21Report Date: Analyte Result %REC RPD Low Limit High Limit RPDLimit RL Units QualCount Prepared by Billings, MT Branch Method: A2510 B Batch: R358580 Lab ID: LCS-R358580 04/01/21 14:00Laboratory Control Sample Run: MISC-SOIL_210401B Resistivity 91 70 1301.0 883 ohm-cm Qualifiers: RL - Analyte Reporting Limit ND - Not detected at the Reporting Limit (RL) Page 13 of 18 Client: C and H Engineering Bozeman Work Order: B21031571 QA/QC Summary Report 03/26/21Report Date: Analyte Result %REC RPD Low Limit High Limit RPDLimit RL Units QualCount Prepared by Billings, MT Branch Method: ASA10-3 Batch: R358580 Lab ID: B21031738-001A DUP 04/01/21 17:23Sample Duplicate Run: MISC-SOIL_210401B Conductivity, 1:2 300.10 3.40.290 mmhos/cm Lab ID: LCS-2104011723 04/01/21 17:23Laboratory Control Sample Run: MISC-SOIL_210401B Conductivity, 1:2 111 70 1300.10 1.13 mmhos/cm Lab ID: B21031738-001A DUP 04/01/21 17:23Sample Duplicate Run: MISC-SOIL_210401B pH, 1:2 100.10 1.37.70 s.u. Lab ID: LCS-2104011723 04/01/21 17:23Laboratory Control Sample Run: MISC-SOIL_210401B pH, 1:2 101 90 1100.10 7.60 s.u. Qualifiers: RL - Analyte Reporting Limit ND - Not detected at the Reporting Limit (RL) Page 14 of 18 Client: C and H Engineering Bozeman Work Order: B21031571 QA/QC Summary Report 03/26/21Report Date: Analyte Result %REC RPD Low Limit High Limit RPDLimit RL Units QualCount Prepared by Billings, MT Branch Method: E300.0 Batch: 154116 Lab ID: LCS-154116 04/02/21 07:20Laboratory Control Sample Run: IC METROHM 2_210330A 2 Chloride, 1:2 98 70 1301.0 67.7 mg/kg Sulfate, 1:2 119 70 1301.0 793 mg/kg Lab ID: B21031554-001A DUP 04/02/21 07:51Sample Duplicate Run: IC METROHM 2_210330A2 Chloride, 1:2 301.3 1.2343 mg/kg Sulfate, 1:2 305.0 0.415470 mg/kg Lab ID: B21031554-002AMS 04/02/21 08:53Sample Matrix Spike Run: IC METROHM 2_210330A2 Chloride, 1:2 99 70 1301.0 556 mg/kg Sulfate, 1:2 104 70 1301.1 5457 mg/kg Qualifiers: RL - Analyte Reporting Limit ND - Not detected at the Reporting Limit (RL) Page 15 of 18 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 parameters such 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 R No VOA vials submitted Not Applicable £ R °C 3/19/2021Richard L. Shular Hand Del tkb Date Received: Received by: Login completed by: Carrier name: BL2000\lcadreau 3/23/2021 Reviewed by: Reviewed Date: Contact and Corrective Action Comments: The temperature of the sample(s) for shipping container 1 was 16.8°C with no ice and the Temperature Blank temperature for shipping container 2 was 5.6°C with ice. The samples for Dissolved Metals/Hardness were subsampled, filtered and preserved to pH <2 with 2 mL of nitric acid per 250 mL in the laboratory. According to 40CFR136, samples for Dissolved Metals should be filtered and preserved within 15 minutes of collection. Temp Blank received in all shipping container(s)/cooler(s)?Yes No £ £ Not Applicable R 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 C and H Engineering Bozeman B21031571 Page 16 of 18 Page 17 of 18 Page 18 of 18 WEST BABCOCK STREET LAUREL PARKWAY