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® Our reports and letters are for the exclusive and confidential use of our clients and may not be reproduced in whole or in part, nor may any reference be made to the work, the results, or the company in any advertising, news release, or other public announcements without obtaining our prior written authorization. 13611 B Street • Omaha, Nebraska 68144-3693 • (402) 334-7770 • FAX (402) 334-9121 • www.midwestlabs.com Lab # 70250077 Report of Analysis Report Number: 23-079-4230 Account: DAVID SCHILLINGER 34024 CITY OF LARAMIE WWTP PO BOX C LARAMIE WY 82073 Robert Ferris Account Manager Date Sampled: 2023-02-27 [PHONE REDACTED] Date Received: 2023-02-28 Compost Pkg Sample ID: 5090847-1 Total content, Analysis Analysis lbs per ton (as rec'd) (dry weight) (as rec'd) NUTRIENTS Nitrogen Total Nitrogen % 0.96 1.16 19.2 Organic Nitrogen % 0.79 0.96 15.8 Ammonium Nitrogen % 0.151 0.183 3.0 Nitrate Nitrogen % 0.02 0.02 0.4 Major and Secondary Nutrients Phosphorus % 0.35 0.42 7.0 Phosphorus as P2O5 % 0.80 0.97 16.0 Potassium % 0.54 0.65 10.8 Potassium as K2O % 0.65 0.79 13.0 Sulfur % 0.31 0.38 6.2 Calcium % 2.99 3.63 59.8 Magnesium % 0.73 0.89 14.6 Sodium % 0.080 0.097 1.6 Micronutrients Iron ppm 8900 10793 17.8 Manganese ppm 259 314 0.5 Boron ppm < 100 OTHER PROPERTIES Moisture % 17.54 Total Solids % 82.46 1649.2 Organic Matter % 21.30 25.83 426.0 Ash % 61.00 73.98 1220.0 Total Carbon % 9.55 11.58 Chloride % 0.07 0.08 pH 7.5 Conductivity 1:5 (Soluble Salts) mS/cm 2.38 PAGE 1/7 ---PAGE BREAK--- ® Our reports and letters are for the exclusive and confidential use of our clients and may not be reproduced in whole or in part, nor may any reference be made to the work, the results, or the company in any advertising, news release, or other public announcements without obtaining our prior written authorization. 13611 B Street • Omaha, Nebraska 68144-3693 • (402) 334-7770 • FAX (402) 334-9121 • www.midwestlabs.com Lab # 70250077 Biological & Physical Properties Report Number: 23-079-4230 Account: DAVID SCHILLINGER 34024 CITY OF LARAMIE WWTP PO BOX C LARAMIE WY 82073 Robert Ferris Client Service Representative Date Sampled: 2023-02-27 [PHONE REDACTED] Date Received: 2023-02-28 Compost Pkg Sample ID: 5090847-1 Analysis Analysis (as rec'd) (dry weight) Units Detection Limit Method Biological Properties Germination 100 % 1 TMECC 05.05A Germination Vigor 80.7 % 1 TMECC 05.05A 0.54 TMECC 05.08B 0.26 TMECC 05.08B Fecal Coliform 48 mpn/g 0.2 EPA 1681 Stability Rating Stable N/A N/A TMECC 05.08B Physical Properties Bulk Density (Loose) 1180 lbs/cu yard 1 WT/VOL Bulk Density (Packed) 1247 lbs/cu yard 1 WT/VOL Film Plastics n.d. % 0.1 TMECC 03.08 Glass Fragments n.d. % 0.1 TMECC 03.08 Hard Plastics n.d. % 0.1 TMECC 03.08 Metal Fragment n.d. % 0.1 TMECC 03.08 Sharps absent 0.1 TMECC 03.08 Max. Particle Length 1.5 inches N/A TMECC Sieve Sieve % Passing 3" 100 % 0.01 TMECC Sieve Sieve % Passing 2" 100 % 0.01 TMECC Sieve Sieve % Passing 1.5" 100 % 0.01 TMECC Sieve Sieve % Passing 1" 100 % 0.01 TMECC Sieve Sieve % Passing 3/4" 100 % 0.01 TMECC Sieve Sieve % Passing 5/8" 100 % 0.01 TMECC Sieve Sieve % Passing 3/8" 100 % 0.01 TMECC Sieve Sieve % Passing 1/4" 100 % 0.01 TMECC Sieve CO2 OM Evolution mgCO2-C/gOM/day 0.01 CO2 Solids Evolution mgCO2-C/gTS/day 0.01 PAGE 2/7 ---PAGE BREAK--- Compost Results Interpretations Report 23-079-4230 Page 1 DATE RECEIVED: 2023-02-28 Organic Matter % 21.30 As Received Greater than 20% indicates a desirable range for compost on a dry weight basis. 25.83 Dry Weight C/N Ratio 9.9:1 20-30 indicates an ideal range for the initial compost process. 10-20 indicates an ideal range for a finished compost. Moisture % 17.54 <35% = Indicates overly dry compost >55% = Indicates overly wet compost Compost is a significant source of Organic Matter, which is an important supplier of carbon. Organic Matter improves soil and plant efficiency by improving soil physical properties, providing a source of energy to beneficial organisms, and enhancing the reservoir of soil nutrients. All organic matter is made up of substantial amounts of carbon with lesser amounts of nitrogen. The balance of these two elements is called the Carbon/Nitrogen Ratio. For the best performance, the compost pile requires the correct proportion of carbon for energy and nitrogen for protein production. If the C:N ratio is too high (excess carbon) decomposition slows down. If the C:N ratio is too low (excess Nitrogen) the compost pile could be difficult to manage. Moisture Percent is the measure of water present in the compost and expressed as a percentage of total weight. Moisture present affects handling and transport. Overly dry will be light and dusty while overly wet will be heavy and clumpy. A desirable moisture content of finished compost will range between 40 to 50%. PAGE 3/7 ---PAGE BREAK--- Compost Results Interpretations Report 23-079-4230 Page 2 DATE RECEIVED: 2023-02-28 Conductivity 1:5 2.4 Conductivity Level Interpretation Greater than 10 Very High nutrient content. Use for Ag Applications 5 - 10 High nutrient content. Use for Ag Applications 3 - 5 Higher than desirable for salt sensitive plants, some loss of vigor 0.6 - 3 Desirable range for most plants 0.3 - 0.6 Ideal range for greenhouse growth media 0.0 - 0.3 Very Low: Indicates very low nutrient status: plants may show deficiencies. Conductivity or Soluble Salts measures the conductance of electrical current in a liquid compost slurry. Excessive soluble salt content in a compost can prevent or delay seed germination and proper root growth. Conductivity analysis is done on a 1:5 basis. PAGE 4/7 ---PAGE BREAK--- Compost Results Interpretations Report 23-079-4230 Page 3 DATE RECEIVED: 2023-02-28 pH Value 7.5 0 to 14 scale with 6 to 8 as normal pH levels for compost A pH in the 6 to 8 pH range indicates a more mature compost pH measures the acidity or alkalinity of the compost, and is a measurement of the hydrogen ion activity of a soil or compost on a logarithmic scale. The pH scale ranges from 0 to 14 and 7 indicates a neutral pH. Growing media with a higher pH or pH greater than 7 can benefit from a compost that has a more acidic pH or pH below 7. This type of application will possibly lower the soil pH making the soil more conducive to plants that thrive in a more acidic soil condition. Nutrient Index (Ag Index) >10 The Nutrient Index normally runs between 1 and 10. The Nutrient Index is obtained by dividing the total nutrients (N,P,K) by the amount of salt (Sodium and Chloride). The higher the Nutrient Index the less chance of having a toxic buildup of Sodium (salt) in the soil. AG INDEX CHART 1 2 3 4 5 6 7 8 9 10 > 10 Nutrients (N+P205+K20) 2.92 Average Nutrient Content Dry Weight <2 = Low, >5 = High 1-1-0.5 Rating As Received salt injury possible use on soils with excellent drainage characteristics, good water quality and low salts you may use on soils with poor drainage, poor water quality, or high salts for all soils The most commonly used compost data is the amount of Nitrogen, Phosphate, and Potash (abbreviated as N,P,K) present and the information is similar to that found in common fertilizers. If a compost result has the rating 1-2-2 it means that the compost has 1% Nitrogen, 2% Phosphate and 2% Potash. Most compost tests will have a average nutrient level (N+P+K) of < PAGE 5/7 ---PAGE BREAK--- %6WUHHW2PDKD1HEUDVND REPORT NUMBER REPORT DATE SEND TO ISSUE DATE RECEIVED DATE 23-079-4230 Mar 20, 2023 34024 Mar 20, 2023 Feb 28, 2023 REPORT OF ANALYSIS For: (34024) CITY OF LARAMIE WWTP CITY OF LARAMIE WWTP Compost Pkg DAVID SCHILLINGER PO BOX C LARAMIE WY 82073 The result(s) issued on this report only reflect the analysis of the sample(s) submitted. Level Found Reporting Analyst- Verified- Analysis As Received Dry Weight Units Limit Method Date Date Sample ID: 5090847-1 Lab Number: 70250077 Date Sampled: 2023-02-27 1300 Salmonella n.d. n.d. MPN/4g 0.26 EPA 1682 cjb1-2023/03/06 snl7-2023/03/06 Cadmium (total) n.d. n.d. mg/kg 0.50 EPA 6010 erw9-2023/03/17 trh1-2023/03/20 Chromium (total) 11.3 13.7 mg/kg 1.00 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Mercury (total) 0.15 0.18 mg/kg 0.05 EPA 7471 mrs3-2023/03/16 trh1-2023/03/20 Lead (total) 9.4 11.4 mg/kg 5.0 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Molybdenum (total) 2.2 2.7 mg/kg 1.0 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Nickel (total) 10.1 12.2 mg/kg 1.0 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Selenium (total) n.d. n.d. mg/kg 10.0 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Zinc (total) 137.5 166.8 mg/kg 2.0 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Copper (total) 101 122 mg/kg 1 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Arsenic (total) 3.14 3.81 mg/kg 0.5 EPA 6020 nto7-2023/03/16 trh1-2023/03/20 Aluminum (total) 5410 6560 mg/kg 5.0 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Cobalt (total) 2.27 2.75 mg/kg 1.00 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Total neutralizing value (CaCO3 eq) 7.4 9.0 % 0.1 AOAC 955.01 jed2-2023/03/07 eas2-2023/03/07 PAGE 6/7 ---PAGE BREAK--- %6WUHHW2PDKD1HEUDVND REPORT NUMBER REPORT DATE SEND TO ISSUE DATE RECEIVED DATE 23-079-4230 Mar 20, 2023 34024 Mar 20, 2023 Feb 28, 2023 REPORT OF ANALYSIS For: (34024) CITY OF LARAMIE WWTP CITY OF LARAMIE WWTP Compost Pkg DAVID SCHILLINGER PO BOX C LARAMIE WY 82073 The result(s) issued on this report only reflect the analysis of the sample(s) submitted. Level Found Reporting Analyst- Verified- Analysis As Received Dry Weight Units Limit Method Date Date EPA 1682 holding time of < 6 hours from sampling to laboratory set up of samples for biosolids and compost has been exceeded. If a level of Salmonella was reported, the value would be considered an estimate. Individual states enforce different holding times for compost or biosolids so please contact the regulatory body in your state for their requirements. n.d. = not detected , MPN = most probable number , ppm = parts per million, ppm = mg/kg For questions please contact: Kerri Stanek Account Manager [EMAIL REDACTED] (402)590-2982 PAGE 7/7 ---PAGE BREAK--- ® Our reports and letters are for the exclusive and confidential use of our clients and may not be reproduced in whole or in part, nor may any reference be made to the work, the results, or the company in any advertising, news release, or other public announcements without obtaining our prior written authorization. 13611 B Street • Omaha, Nebraska 68144-3693 • (402) 334-7770 • FAX (402) 334-9121 • www.midwestlabs.com Lab # 70250078 Report of Analysis Report Number: 23-079-4231 Account: DAVID SCHILLINGER 34024 CITY OF LARAMIE WWTP PO BOX C LARAMIE WY 82073 Robert Ferris Account Manager Date Sampled: 2023-02-27 [PHONE REDACTED] Date Received: 2023-02-28 Compost Pkg Sample ID: 5090847-2 Total content, Analysis Analysis lbs per ton (as rec'd) (dry weight) (as rec'd) NUTRIENTS Nitrogen Total Nitrogen % 1.14 1.41 22.8 Organic Nitrogen % 0.99 1.22 19.7 Ammonium Nitrogen % 0.153 0.189 3.1 Nitrate Nitrogen % < 0.01 Major and Secondary Nutrients Phosphorus % 0.33 0.41 6.6 Phosphorus as P2O5 % 0.76 0.94 15.2 Potassium % 0.59 0.73 11.8 Potassium as K2O % 0.71 0.88 14.2 Sulfur % 0.30 0.37 6.0 Calcium % 2.84 3.51 56.8 Magnesium % 0.74 0.92 14.8 Sodium % 0.080 0.099 1.6 Micronutrients Iron ppm 9380 11606 18.8 Manganese ppm 246 304 0.5 Boron ppm 127 157 0.3 OTHER PROPERTIES Moisture % 19.18 Total Solids % 80.82 1616.4 Organic Matter % 22.40 27.72 448.0 Ash % 58.20 72.01 1164.0 Total Carbon % 11.44 14.15 Chloride % 0.07 0.09 pH 7.6 Conductivity 1:5 (Soluble Salts) mS/cm 2.49 PAGE 1/7 ---PAGE BREAK--- ® Our reports and letters are for the exclusive and confidential use of our clients and may not be reproduced in whole or in part, nor may any reference be made to the work, the results, or the company in any advertising, news release, or other public announcements without obtaining our prior written authorization. 13611 B Street • Omaha, Nebraska 68144-3693 • (402) 334-7770 • FAX (402) 334-9121 • www.midwestlabs.com Lab # 70250078 Biological & Physical Properties Report Number: 23-079-4231 Account: DAVID SCHILLINGER 34024 CITY OF LARAMIE WWTP PO BOX C LARAMIE WY 82073 Robert Ferris Client Service Representative Date Sampled: 2023-02-27 [PHONE REDACTED] Date Received: 2023-02-28 Compost Pkg Sample ID: 5090847-2 Analysis Analysis (as rec'd) (dry weight) Units Detection Limit Method Biological Properties Germination 100 % 1 TMECC 05.05A Germination Vigor 83.4 % 1 TMECC 05.05A 0.48 TMECC 05.08B 0.25 TMECC 05.08B Fecal Coliform 27 mpn/g 0.2 EPA 1681 Stability Rating Stable N/A N/A TMECC 05.08B Physical Properties Bulk Density (Loose) 1112 lbs/cu yard 1 WT/VOL Bulk Density (Packed) 1180 lbs/cu yard 1 WT/VOL Film Plastics n.d. % 0.1 TMECC 03.08 Glass Fragments n.d. % 0.1 TMECC 03.08 Hard Plastics n.d. % 0.1 TMECC 03.08 Metal Fragment n.d. % 0.1 TMECC 03.08 Sharps absent 0.1 TMECC 03.08 Max. Particle Length 2.0 inches N/A TMECC Sieve Sieve % Passing 3" 100 % 0.01 TMECC Sieve Sieve % Passing 2" 100 % 0.01 TMECC Sieve Sieve % Passing 1.5" 100 % 0.01 TMECC Sieve Sieve % Passing 1" 100 % 0.01 TMECC Sieve Sieve % Passing 3/4" 100 % 0.01 TMECC Sieve Sieve % Passing 5/8" 100 % 0.01 TMECC Sieve Sieve % Passing 3/8" 100 % 0.01 TMECC Sieve Sieve % Passing 1/4" 100 % 0.01 TMECC Sieve CO2 OM Evolution mgCO2-C/gOM/day 0.01 CO2 Solids Evolution mgCO2-C/gTS/day 0.01 PAGE 2/7 ---PAGE BREAK--- Compost Results Interpretations Report 23-079-4231 Page 1 DATE RECEIVED: 2023-02-28 Organic Matter % 22.40 As Received Greater than 20% indicates a desirable range for compost on a dry weight basis. 27.72 Dry Weight C/N Ratio 10:1 20-30 indicates an ideal range for the initial compost process. 10-20 indicates an ideal range for a finished compost. Moisture % 19.18 <35% = Indicates overly dry compost >55% = Indicates overly wet compost Compost is a significant source of Organic Matter, which is an important supplier of carbon. Organic Matter improves soil and plant efficiency by improving soil physical properties, providing a source of energy to beneficial organisms, and enhancing the reservoir of soil nutrients. All organic matter is made up of substantial amounts of carbon with lesser amounts of nitrogen. The balance of these two elements is called the Carbon/Nitrogen Ratio. For the best performance, the compost pile requires the correct proportion of carbon for energy and nitrogen for protein production. If the C:N ratio is too high (excess carbon) decomposition slows down. If the C:N ratio is too low (excess Nitrogen) the compost pile could be difficult to manage. Moisture Percent is the measure of water present in the compost and expressed as a percentage of total weight. Moisture present affects handling and transport. Overly dry will be light and dusty while overly wet will be heavy and clumpy. A desirable moisture content of finished compost will range between 40 to 50%. PAGE 3/7 ---PAGE BREAK--- Compost Results Interpretations Report 23-079-4231 Page 2 DATE RECEIVED: 2023-02-28 Conductivity 1:5 2.5 Conductivity Level Interpretation Greater than 10 Very High nutrient content. Use for Ag Applications 5 - 10 High nutrient content. Use for Ag Applications 3 - 5 Higher than desirable for salt sensitive plants, some loss of vigor 0.6 - 3 Desirable range for most plants 0.3 - 0.6 Ideal range for greenhouse growth media 0.0 - 0.3 Very Low: Indicates very low nutrient status: plants may show deficiencies. Conductivity or Soluble Salts measures the conductance of electrical current in a liquid compost slurry. Excessive soluble salt content in a compost can prevent or delay seed germination and proper root growth. Conductivity analysis is done on a 1:5 basis. PAGE 4/7 ---PAGE BREAK--- Compost Results Interpretations Report 23-079-4231 Page 3 DATE RECEIVED: 2023-02-28 pH Value 7.6 0 to 14 scale with 6 to 8 as normal pH levels for compost A pH in the 6 to 8 pH range indicates a more mature compost pH measures the acidity or alkalinity of the compost, and is a measurement of the hydrogen ion activity of a soil or compost on a logarithmic scale. The pH scale ranges from 0 to 14 and 7 indicates a neutral pH. Growing media with a higher pH or pH greater than 7 can benefit from a compost that has a more acidic pH or pH below 7. This type of application will possibly lower the soil pH making the soil more conducive to plants that thrive in a more acidic soil condition. Nutrient Index (Ag Index) >10 The Nutrient Index normally runs between 1 and 10. The Nutrient Index is obtained by dividing the total nutrients (N,P,K) by the amount of salt (Sodium and Chloride). The higher the Nutrient Index the less chance of having a toxic buildup of Sodium (salt) in the soil. AG INDEX CHART 1 2 3 4 5 6 7 8 9 10 > 10 Nutrients (N+P205+K20) 3.23 Average Nutrient Content Dry Weight <2 = Low, >5 = High 1-1-0.5 Rating As Received salt injury possible use on soils with excellent drainage characteristics, good water quality and low salts you may use on soils with poor drainage, poor water quality, or high salts for all soils The most commonly used compost data is the amount of Nitrogen, Phosphate, and Potash (abbreviated as N,P,K) present and the information is similar to that found in common fertilizers. If a compost result has the rating 1-2-2 it means that the compost has 1% Nitrogen, 2% Phosphate and 2% Potash. Most compost tests will have a average nutrient level (N+P+K) of < PAGE 5/7 ---PAGE BREAK--- %6WUHHW2PDKD1HEUDVND REPORT NUMBER REPORT DATE SEND TO ISSUE DATE RECEIVED DATE 23-079-4231 Mar 20, 2023 34024 Mar 20, 2023 Feb 28, 2023 REPORT OF ANALYSIS For: (34024) CITY OF LARAMIE WWTP CITY OF LARAMIE WWTP Compost Pkg DAVID SCHILLINGER PO BOX C LARAMIE WY 82073 The result(s) issued on this report only reflect the analysis of the sample(s) submitted. Level Found Reporting Analyst- Verified- Analysis As Received Dry Weight Units Limit Method Date Date Sample ID: 5090847-2 Lab Number: 70250078 Date Sampled: 2023-02-27 1300 Salmonella n.d. n.d. MPN/4g 0.26 EPA 1682 cjb1-2023/03/06 snl7-2023/03/06 Cadmium (total) n.d. n.d. mg/kg 0.50 EPA 6010 erw9-2023/03/17 trh1-2023/03/20 Chromium (total) 11.9 14.7 mg/kg 1.00 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Mercury (total) 0.11 0.14 mg/kg 0.05 EPA 7471 mrs3-2023/03/16 trh1-2023/03/20 Lead (total) 12.0 14.9 mg/kg 5.0 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Molybdenum (total) 1.9 2.4 mg/kg 1.0 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Nickel (total) 10.6 13.1 mg/kg 1.0 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Selenium (total) n.d. n.d. mg/kg 10.0 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Zinc (total) 143.6 177.7 mg/kg 2.0 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Copper (total) 100 124 mg/kg 1 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Arsenic (total) 3.03 3.75 mg/kg 0.5 EPA 6020 nto7-2023/03/16 trh1-2023/03/20 Aluminum (total) 5730 7090 mg/kg 5.0 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Cobalt (total) 2.34 2.89 mg/kg 1.00 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Total neutralizing value (CaCO3 eq) 7.4 9.1 % 0.1 AOAC 955.01 jed2-2023/03/07 eas2-2023/03/07 PAGE 6/7 ---PAGE BREAK--- %6WUHHW2PDKD1HEUDVND REPORT NUMBER REPORT DATE SEND TO ISSUE DATE RECEIVED DATE 23-079-4231 Mar 20, 2023 34024 Mar 20, 2023 Feb 28, 2023 REPORT OF ANALYSIS For: (34024) CITY OF LARAMIE WWTP CITY OF LARAMIE WWTP Compost Pkg DAVID SCHILLINGER PO BOX C LARAMIE WY 82073 The result(s) issued on this report only reflect the analysis of the sample(s) submitted. Level Found Reporting Analyst- Verified- Analysis As Received Dry Weight Units Limit Method Date Date EPA 1682 holding time of < 6 hours from sampling to laboratory set up of samples for biosolids and compost has been exceeded. If a level of Salmonella was reported, the value would be considered an estimate. Individual states enforce different holding times for compost or biosolids so please contact the regulatory body in your state for their requirements. n.d. = not detected , MPN = most probable number , ppm = parts per million, ppm = mg/kg For questions please contact: Kerri Stanek Account Manager [EMAIL REDACTED] (402)590-2982 PAGE 7/7 ---PAGE BREAK--- ® Our reports and letters are for the exclusive and confidential use of our clients and may not be reproduced in whole or in part, nor may any reference be made to the work, the results, or the company in any advertising, news release, or other public announcements without obtaining our prior written authorization. 13611 B Street • Omaha, Nebraska 68144-3693 • (402) 334-7770 • FAX (402) 334-9121 • www.midwestlabs.com Lab # 70250079 Report of Analysis Report Number: 23-079-4232 Account: DAVID SCHILLINGER 34024 CITY OF LARAMIE WWTP PO BOX C LARAMIE WY 82073 Robert Ferris Account Manager Date Sampled: 2023-02-27 [PHONE REDACTED] Date Received: 2023-02-28 Compost Pkg Sample ID: 5090847-3 Total content, Analysis Analysis lbs per ton (as rec'd) (dry weight) (as rec'd) NUTRIENTS Nitrogen Total Nitrogen % 1.04 1.31 20.8 Organic Nitrogen % 0.89 1.13 17.8 Ammonium Nitrogen % 0.149 0.188 3.0 Nitrate Nitrogen % < 0.01 Major and Secondary Nutrients Phosphorus % 0.33 0.42 6.6 Phosphorus as P2O5 % 0.76 0.96 15.2 Potassium % 0.56 0.71 11.2 Potassium as K2O % 0.67 0.85 13.4 Sulfur % 0.30 0.38 6.0 Calcium % 2.78 3.51 55.6 Magnesium % 0.70 0.88 14.0 Sodium % 0.090 0.114 1.8 Micronutrients Iron ppm 8860 11201 17.7 Manganese ppm 250 316 0.5 Boron ppm 125 158 0.3 OTHER PROPERTIES Moisture % 20.90 Total Solids % 79.10 1582.0 Organic Matter % 20.30 25.66 406.0 Ash % 58.60 74.08 1172.0 Total Carbon % 10.60 13.40 Chloride % 0.07 0.09 pH 7.6 Conductivity 1:5 (Soluble Salts) mS/cm 3.11 PAGE 1/7 ---PAGE BREAK--- ® Our reports and letters are for the exclusive and confidential use of our clients and may not be reproduced in whole or in part, nor may any reference be made to the work, the results, or the company in any advertising, news release, or other public announcements without obtaining our prior written authorization. 13611 B Street • Omaha, Nebraska 68144-3693 • (402) 334-7770 • FAX (402) 334-9121 • www.midwestlabs.com Lab # 70250079 Biological & Physical Properties Report Number: 23-079-4232 Account: DAVID SCHILLINGER 34024 CITY OF LARAMIE WWTP PO BOX C LARAMIE WY 82073 Robert Ferris Client Service Representative Date Sampled: 2023-02-27 [PHONE REDACTED] Date Received: 2023-02-28 Compost Pkg Sample ID: 5090847-3 Analysis Analysis (as rec'd) (dry weight) Units Detection Limit Method Biological Properties Germination 100 % 1 TMECC 05.05A Germination Vigor 87.5 % 1 TMECC 05.05A 0.52 TMECC 05.08B 0.25 TMECC 05.08B Fecal Coliform 2 mpn/g 0.2 EPA 1681 Stability Rating Stable N/A N/A TMECC 05.08B Physical Properties Bulk Density (Loose) 1045 lbs/cu yard 1 WT/VOL Bulk Density (Packed) 1163 lbs/cu yard 1 WT/VOL Film Plastics n.d. % 0.1 TMECC 03.08 Glass Fragments n.d. % 0.1 TMECC 03.08 Hard Plastics n.d. % 0.1 TMECC 03.08 Metal Fragment n.d. % 0.1 TMECC 03.08 Sharps absent 0.1 TMECC 03.08 Max. Particle Length 1.5 inches N/A TMECC Sieve Sieve % Passing 3" 100 % 0.01 TMECC Sieve Sieve % Passing 2" 100 % 0.01 TMECC Sieve Sieve % Passing 1.5" 100 % 0.01 TMECC Sieve Sieve % Passing 1" 100 % 0.01 TMECC Sieve Sieve % Passing 3/4" 100 % 0.01 TMECC Sieve Sieve % Passing 5/8" 100 % 0.01 TMECC Sieve Sieve % Passing 3/8" 100 % 0.01 TMECC Sieve Sieve % Passing 1/4" 99 % 0.01 TMECC Sieve CO2 OM Evolution mgCO2-C/gOM/day 0.01 CO2 Solids Evolution mgCO2-C/gTS/day 0.01 PAGE 2/7 ---PAGE BREAK--- Compost Results Interpretations Report 23-079-4232 Page 1 DATE RECEIVED: 2023-02-28 Organic Matter % 20.30 As Received Greater than 20% indicates a desirable range for compost on a dry weight basis. 25.66 Dry Weight C/N Ratio 10.2:1 20-30 indicates an ideal range for the initial compost process. 10-20 indicates an ideal range for a finished compost. Moisture % 20.90 <35% = Indicates overly dry compost >55% = Indicates overly wet compost Compost is a significant source of Organic Matter, which is an important supplier of carbon. Organic Matter improves soil and plant efficiency by improving soil physical properties, providing a source of energy to beneficial organisms, and enhancing the reservoir of soil nutrients. All organic matter is made up of substantial amounts of carbon with lesser amounts of nitrogen. The balance of these two elements is called the Carbon/Nitrogen Ratio. For the best performance, the compost pile requires the correct proportion of carbon for energy and nitrogen for protein production. If the C:N ratio is too high (excess carbon) decomposition slows down. If the C:N ratio is too low (excess Nitrogen) the compost pile could be difficult to manage. Moisture Percent is the measure of water present in the compost and expressed as a percentage of total weight. Moisture present affects handling and transport. Overly dry will be light and dusty while overly wet will be heavy and clumpy. A desirable moisture content of finished compost will range between 40 to 50%. PAGE 3/7 ---PAGE BREAK--- Compost Results Interpretations Report 23-079-4232 Page 2 DATE RECEIVED: 2023-02-28 Conductivity 1:5 3.1 Conductivity Level Interpretation Greater than 10 Very High nutrient content. Use for Ag Applications 5 - 10 High nutrient content. Use for Ag Applications 3 - 5 Higher than desirable for salt sensitive plants, some loss of vigor 0.6 - 3 Desirable range for most plants 0.3 - 0.6 Ideal range for greenhouse growth media 0.0 - 0.3 Very Low: Indicates very low nutrient status: plants may show deficiencies. Conductivity or Soluble Salts measures the conductance of electrical current in a liquid compost slurry. Excessive soluble salt content in a compost can prevent or delay seed germination and proper root growth. Conductivity analysis is done on a 1:5 basis. PAGE 4/7 ---PAGE BREAK--- Compost Results Interpretations Report 23-079-4232 Page 3 DATE RECEIVED: 2023-02-28 pH Value 7.6 0 to 14 scale with 6 to 8 as normal pH levels for compost A pH in the 6 to 8 pH range indicates a more mature compost pH measures the acidity or alkalinity of the compost, and is a measurement of the hydrogen ion activity of a soil or compost on a logarithmic scale. The pH scale ranges from 0 to 14 and 7 indicates a neutral pH. Growing media with a higher pH or pH greater than 7 can benefit from a compost that has a more acidic pH or pH below 7. This type of application will possibly lower the soil pH making the soil more conducive to plants that thrive in a more acidic soil condition. Nutrient Index (Ag Index) >10 The Nutrient Index normally runs between 1 and 10. The Nutrient Index is obtained by dividing the total nutrients (N,P,K) by the amount of salt (Sodium and Chloride). The higher the Nutrient Index the less chance of having a toxic buildup of Sodium (salt) in the soil. AG INDEX CHART 1 2 3 4 5 6 7 8 9 10 > 10 Nutrients (N+P205+K20) 3.12 Average Nutrient Content Dry Weight <2 = Low, >5 = High 1-1-0.5 Rating As Received salt injury possible use on soils with excellent drainage characteristics, good water quality and low salts you may use on soils with poor drainage, poor water quality, or high salts for all soils The most commonly used compost data is the amount of Nitrogen, Phosphate, and Potash (abbreviated as N,P,K) present and the information is similar to that found in common fertilizers. If a compost result has the rating 1-2-2 it means that the compost has 1% Nitrogen, 2% Phosphate and 2% Potash. Most compost tests will have a average nutrient level (N+P+K) of < PAGE 5/7 ---PAGE BREAK--- %6WUHHW2PDKD1HEUDVND REPORT NUMBER REPORT DATE SEND TO ISSUE DATE RECEIVED DATE 23-079-4232 Mar 20, 2023 34024 Mar 20, 2023 Feb 28, 2023 REPORT OF ANALYSIS For: (34024) CITY OF LARAMIE WWTP CITY OF LARAMIE WWTP Compost Pkg DAVID SCHILLINGER PO BOX C LARAMIE WY 82073 The result(s) issued on this report only reflect the analysis of the sample(s) submitted. Level Found Reporting Analyst- Verified- Analysis As Received Dry Weight Units Limit Method Date Date Sample ID: 5090847-3 Lab Number: 70250079 Date Sampled: 2023-02-27 1300 Salmonella n.d. n.d. MPN/4g 0.26 EPA 1682 cjb1-2023/03/06 snl7-2023/03/06 Cadmium (total) n.d. 0.51 mg/kg 0.50 EPA 6010 erw9-2023/03/17 trh1-2023/03/20 Chromium (total) 11.5 14.5 mg/kg 1.00 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Mercury (total) 0.09 0.12 mg/kg 0.05 EPA 7471 mrs3-2023/03/16 trh1-2023/03/20 Lead (total) 11.4 14.4 mg/kg 5.0 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Molybdenum (total) 1.7 2.1 mg/kg 1.0 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Nickel (total) 9.6 12.2 mg/kg 1.0 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Selenium (total) n.d. n.d. mg/kg 10.0 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Zinc (total) 133.0 168.2 mg/kg 2.0 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Copper (total) 103 130 mg/kg 1 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Arsenic (total) 3.06 3.87 mg/kg 0.5 EPA 6020 nto7-2023/03/16 trh1-2023/03/20 Aluminum (total) 5500 6950 mg/kg 5.0 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Cobalt (total) 2.17 2.74 mg/kg 1.00 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Total neutralizing value (CaCO3 eq) 6.5 8.2 % 0.1 AOAC 955.01 jed2-2023/03/07 eas2-2023/03/07 PAGE 6/7 ---PAGE BREAK--- %6WUHHW2PDKD1HEUDVND REPORT NUMBER REPORT DATE SEND TO ISSUE DATE RECEIVED DATE 23-079-4232 Mar 20, 2023 34024 Mar 20, 2023 Feb 28, 2023 REPORT OF ANALYSIS For: (34024) CITY OF LARAMIE WWTP CITY OF LARAMIE WWTP Compost Pkg DAVID SCHILLINGER PO BOX C LARAMIE WY 82073 The result(s) issued on this report only reflect the analysis of the sample(s) submitted. Level Found Reporting Analyst- Verified- Analysis As Received Dry Weight Units Limit Method Date Date EPA 1682 holding time of < 6 hours from sampling to laboratory set up of samples for biosolids and compost has been exceeded. If a level of Salmonella was reported, the value would be considered an estimate. Individual states enforce different holding times for compost or biosolids so please contact the regulatory body in your state for their requirements. n.d. = not detected , MPN = most probable number , ppm = parts per million, ppm = mg/kg For questions please contact: Kerri Stanek Account Manager [EMAIL REDACTED] (402)590-2982 PAGE 7/7 ---PAGE BREAK--- ® Our reports and letters are for the exclusive and confidential use of our clients and may not be reproduced in whole or in part, nor may any reference be made to the work, the results, or the company in any advertising, news release, or other public announcements without obtaining our prior written authorization. 13611 B Street • Omaha, Nebraska 68144-3693 • (402) 334-7770 • FAX (402) 334-9121 • www.midwestlabs.com Lab # 70250080 Report of Analysis Report Number: 23-079-4233 Account: DAVID SCHILLINGER 34024 CITY OF LARAMIE WWTP PO BOX C LARAMIE WY 82073 Robert Ferris Account Manager Date Sampled: 2023-02-27 [PHONE REDACTED] Date Received: 2023-02-28 Compost Pkg Sample ID: 5090847-4 Total content, Analysis Analysis lbs per ton (as rec'd) (dry weight) (as rec'd) NUTRIENTS Nitrogen Total Nitrogen % 1.06 1.28 21.2 Organic Nitrogen % 0.90 1.08 17.9 Ammonium Nitrogen % 0.164 0.198 3.3 Nitrate Nitrogen % < 0.01 Major and Secondary Nutrients Phosphorus % 0.35 0.42 7.0 Phosphorus as P2O5 % 0.80 0.96 16.0 Potassium % 0.56 0.67 11.2 Potassium as K2O % 0.67 0.81 13.4 Sulfur % 0.31 0.37 6.2 Calcium % 3.07 3.70 61.4 Magnesium % 0.72 0.87 14.4 Sodium % 0.080 0.096 1.6 Micronutrients Iron ppm 9630 11601 19.3 Manganese ppm 246 296 0.5 Boron ppm < 100 OTHER PROPERTIES Moisture % 16.99 Total Solids % 83.01 1660.2 Organic Matter % 20.30 24.45 406.0 Ash % 62.40 75.17 1248.0 Total Carbon % 10.83 13.05 Chloride % 0.07 0.08 pH 7.6 Conductivity 1:5 (Soluble Salts) mS/cm 2.39 PAGE 1/7 ---PAGE BREAK--- ® Our reports and letters are for the exclusive and confidential use of our clients and may not be reproduced in whole or in part, nor may any reference be made to the work, the results, or the company in any advertising, news release, or other public announcements without obtaining our prior written authorization. 13611 B Street • Omaha, Nebraska 68144-3693 • (402) 334-7770 • FAX (402) 334-9121 • www.midwestlabs.com Lab # 70250080 Biological & Physical Properties Report Number: 23-079-4233 Account: DAVID SCHILLINGER 34024 CITY OF LARAMIE WWTP PO BOX C LARAMIE WY 82073 Robert Ferris Client Service Representative Date Sampled: 2023-02-27 [PHONE REDACTED] Date Received: 2023-02-28 Compost Pkg Sample ID: 5090847-4 Analysis Analysis (as rec'd) (dry weight) Units Detection Limit Method Biological Properties Germination 80 % 1 TMECC 05.05A Germination Vigor 82.3 % 1 TMECC 05.05A 0.53 TMECC 05.08B 0.26 TMECC 05.08B Fecal Coliform 3 mpn/g 0.2 EPA 1681 Stability Rating Stable N/A N/A TMECC 05.08B Physical Properties Bulk Density (Loose) 1045 lbs/cu yard 1 WT/VOL Bulk Density (Packed) 1180 lbs/cu yard 1 WT/VOL Film Plastics n.d. % 0.1 TMECC 03.08 Glass Fragments n.d. % 0.1 TMECC 03.08 Hard Plastics n.d. % 0.1 TMECC 03.08 Metal Fragment n.d. % 0.1 TMECC 03.08 Sharps absent 0.1 TMECC 03.08 Max. Particle Length 1.5 inches N/A TMECC Sieve Sieve % Passing 3" 100 % 0.01 TMECC Sieve Sieve % Passing 2" 100 % 0.01 TMECC Sieve Sieve % Passing 1.5" 100 % 0.01 TMECC Sieve Sieve % Passing 1" 100 % 0.01 TMECC Sieve Sieve % Passing 3/4" 100 % 0.01 TMECC Sieve Sieve % Passing 5/8" 100 % 0.01 TMECC Sieve Sieve % Passing 3/8" 100 % 0.01 TMECC Sieve Sieve % Passing 1/4" 99 % 0.01 TMECC Sieve CO2 OM Evolution mgCO2-C/gOM/day 0.01 CO2 Solids Evolution mgCO2-C/gTS/day 0.01 PAGE 2/7 ---PAGE BREAK--- Compost Results Interpretations Report 23-079-4233 Page 1 DATE RECEIVED: 2023-02-28 Organic Matter % 20.30 As Received Greater than 20% indicates a desirable range for compost on a dry weight basis. 24.45 Dry Weight C/N Ratio 10.2:1 20-30 indicates an ideal range for the initial compost process. 10-20 indicates an ideal range for a finished compost. Moisture % 16.99 <35% = Indicates overly dry compost >55% = Indicates overly wet compost Compost is a significant source of Organic Matter, which is an important supplier of carbon. Organic Matter improves soil and plant efficiency by improving soil physical properties, providing a source of energy to beneficial organisms, and enhancing the reservoir of soil nutrients. All organic matter is made up of substantial amounts of carbon with lesser amounts of nitrogen. The balance of these two elements is called the Carbon/Nitrogen Ratio. For the best performance, the compost pile requires the correct proportion of carbon for energy and nitrogen for protein production. If the C:N ratio is too high (excess carbon) decomposition slows down. If the C:N ratio is too low (excess Nitrogen) the compost pile could be difficult to manage. Moisture Percent is the measure of water present in the compost and expressed as a percentage of total weight. Moisture present affects handling and transport. Overly dry will be light and dusty while overly wet will be heavy and clumpy. A desirable moisture content of finished compost will range between 40 to 50%. PAGE 3/7 ---PAGE BREAK--- Compost Results Interpretations Report 23-079-4233 Page 2 DATE RECEIVED: 2023-02-28 Conductivity 1:5 2.4 Conductivity Level Interpretation Greater than 10 Very High nutrient content. Use for Ag Applications 5 - 10 High nutrient content. Use for Ag Applications 3 - 5 Higher than desirable for salt sensitive plants, some loss of vigor 0.6 - 3 Desirable range for most plants 0.3 - 0.6 Ideal range for greenhouse growth media 0.0 - 0.3 Very Low: Indicates very low nutrient status: plants may show deficiencies. Conductivity or Soluble Salts measures the conductance of electrical current in a liquid compost slurry. Excessive soluble salt content in a compost can prevent or delay seed germination and proper root growth. Conductivity analysis is done on a 1:5 basis. PAGE 4/7 ---PAGE BREAK--- Compost Results Interpretations Report 23-079-4233 Page 3 DATE RECEIVED: 2023-02-28 pH Value 7.6 0 to 14 scale with 6 to 8 as normal pH levels for compost A pH in the 6 to 8 pH range indicates a more mature compost pH measures the acidity or alkalinity of the compost, and is a measurement of the hydrogen ion activity of a soil or compost on a logarithmic scale. The pH scale ranges from 0 to 14 and 7 indicates a neutral pH. Growing media with a higher pH or pH greater than 7 can benefit from a compost that has a more acidic pH or pH below 7. This type of application will possibly lower the soil pH making the soil more conducive to plants that thrive in a more acidic soil condition. Nutrient Index (Ag Index) >10 The Nutrient Index normally runs between 1 and 10. The Nutrient Index is obtained by dividing the total nutrients (N,P,K) by the amount of salt (Sodium and Chloride). The higher the Nutrient Index the less chance of having a toxic buildup of Sodium (salt) in the soil. AG INDEX CHART 1 2 3 4 5 6 7 8 9 10 > 10 Nutrients (N+P205+K20) 3.05 Average Nutrient Content Dry Weight <2 = Low, >5 = High 1-1-0.5 Rating As Received salt injury possible use on soils with excellent drainage characteristics, good water quality and low salts you may use on soils with poor drainage, poor water quality, or high salts for all soils The most commonly used compost data is the amount of Nitrogen, Phosphate, and Potash (abbreviated as N,P,K) present and the information is similar to that found in common fertilizers. If a compost result has the rating 1-2-2 it means that the compost has 1% Nitrogen, 2% Phosphate and 2% Potash. Most compost tests will have a average nutrient level (N+P+K) of < PAGE 5/7 ---PAGE BREAK--- %6WUHHW2PDKD1HEUDVND REPORT NUMBER REPORT DATE SEND TO ISSUE DATE RECEIVED DATE 23-079-4233 Mar 20, 2023 34024 Mar 20, 2023 Feb 28, 2023 REPORT OF ANALYSIS For: (34024) CITY OF LARAMIE WWTP CITY OF LARAMIE WWTP Compost Pkg DAVID SCHILLINGER PO BOX C LARAMIE WY 82073 The result(s) issued on this report only reflect the analysis of the sample(s) submitted. Level Found Reporting Analyst- Verified- Analysis As Received Dry Weight Units Limit Method Date Date Sample ID: 5090847-4 Lab Number: 70250080 Date Sampled: 2023-02-27 1300 Salmonella n.d. n.d. MPN/4g 0.26 EPA 1682 cjb1-2023/03/06 snl7-2023/03/06 Cadmium (total) n.d. 0.53 mg/kg 0.50 EPA 6010 erw9-2023/03/17 trh1-2023/03/20 Chromium (total) 14.7 17.7 mg/kg 1.00 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Mercury (total) 0.09 0.11 mg/kg 0.05 EPA 7471 mrs3-2023/03/16 trh1-2023/03/20 Lead (total) 10.4 12.6 mg/kg 5.0 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Molybdenum (total) 2.0 2.4 mg/kg 1.0 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Nickel (total) 10.9 13.1 mg/kg 1.0 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Selenium (total) n.d. n.d. mg/kg 10.0 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Zinc (total) 147.9 178.2 mg/kg 2.0 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Copper (total) 105 127 mg/kg 1 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Arsenic (total) 3.22 3.88 mg/kg 0.5 EPA 6020 nto7-2023/03/16 trh1-2023/03/20 Aluminum (total) 6280 7560 mg/kg 5.0 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Cobalt (total) 2.43 2.93 mg/kg 1.00 EPA 6010 erw9-2023/03/16 trh1-2023/03/20 Total neutralizing value (CaCO3 eq) 6.2 7.5 % 0.1 AOAC 955.01 jed2-2023/03/07 eas2-2023/03/07 PAGE 6/7 ---PAGE BREAK--- %6WUHHW2PDKD1HEUDVND REPORT NUMBER REPORT DATE SEND TO ISSUE DATE RECEIVED DATE 23-079-4233 Mar 20, 2023 34024 Mar 20, 2023 Feb 28, 2023 REPORT OF ANALYSIS For: (34024) CITY OF LARAMIE WWTP CITY OF LARAMIE WWTP Compost Pkg DAVID SCHILLINGER PO BOX C LARAMIE WY 82073 The result(s) issued on this report only reflect the analysis of the sample(s) submitted. Level Found Reporting Analyst- Verified- Analysis As Received Dry Weight Units Limit Method Date Date EPA 1682 holding time of < 6 hours from sampling to laboratory set up of samples for biosolids and compost has been exceeded. If a level of Salmonella was reported, the value would be considered an estimate. Individual states enforce different holding times for compost or biosolids so please contact the regulatory body in your state for their requirements. n.d. = not detected , MPN = most probable number , ppm = parts per million, ppm = mg/kg For questions please contact: Kerri Stanek Account Manager [EMAIL REDACTED] (402)590-2982 PAGE 7/7 ---PAGE BREAK--- ® Our reports and letters are for the exclusive and confidential use of our clients and may not be reproduced in whole or in part, nor may any reference be made to the work, the results, or the company in any advertising, news release, or other public announcements without obtaining our prior written authorization. 13611 B Street • Omaha, Nebraska 68144-3693 • (402) 334-7770 • FAX (402) 334-9121 • www.midwestlabs.com Lab # 70430549 Report of Analysis Report Number: 24-080-4013 Account: DAVID SCHILLINGER 34024 CITY OF LARAMIE WWTP PO BOX C LARAMIE WY 82073 Robert Ferris Account Manager Date Sampled: 2024-03-06 [PHONE REDACTED] Date Received: 2024-03-07 Compost Pkg Sample ID: 5210632-1 Total content, Analysis Analysis lbs per ton (as rec'd) (dry weight) (as rec'd) NUTRIENTS Nitrogen Total Nitrogen % 1.11 1.61 22.2 Organic Nitrogen % 1.01 1.46 20.2 Ammonium Nitrogen % 0.062 0.090 1.2 Nitrate Nitrogen % 0.04 0.06 0.8 Major and Secondary Nutrients Phosphorus % 0.28 0.41 5.6 Phosphorus as P2O5 % 0.64 0.93 12.8 Potassium % 0.48 0.70 9.6 Potassium as K2O % 0.58 0.84 11.6 Sulfur % 0.23 0.33 4.6 Calcium % 2.34 3.40 46.8 Magnesium % 0.53 0.77 10.6 Sodium % 0.070 0.102 1.4 Micronutrients Iron ppm 6880 9993 13.8 Manganese ppm 211 306 0.4 Boron ppm < 100 OTHER PROPERTIES Moisture % 31.15 Total Solids % 68.85 1377.0 Organic Matter % 20.50 29.77 410.0 Ash % 48.10 69.86 962.0 Total Carbon % 9.87 14.33 Chloride % 0.06 0.09 pH 7.0 Conductivity 1:5 (Soluble Salts) mS/cm 2.96 PAGE 1/7 ---PAGE BREAK--- ® Our reports and letters are for the exclusive and confidential use of our clients and may not be reproduced in whole or in part, nor may any reference be made to the work, the results, or the company in any advertising, news release, or other public announcements without obtaining our prior written authorization. 13611 B Street • Omaha, Nebraska 68144-3693 • (402) 334-7770 • FAX (402) 334-9121 • www.midwestlabs.com Lab # 70430549 Biological & Physical Properties Report Number: 24-080-4013 Account: DAVID SCHILLINGER 34024 CITY OF LARAMIE WWTP PO BOX C LARAMIE WY 82073 Robert Ferris Client Service Representative Date Sampled: 2024-03-06 [PHONE REDACTED] Date Received: 2024-03-07 Compost Pkg Sample ID: 5210632-1 Analysis Analysis (as rec'd) (dry weight) Units Detection Limit Method Biological Properties Germination 100 % 1 TMECC 05.05A Germination Vigor 97.5 % 1 TMECC 05.05A 0.74 TMECC 05.08B 0.55 TMECC 05.08B Fecal Coliform 115 mpn/g 0.2 EPA 1681 Stability Rating Stable N/A N/A TMECC 05.08B Physical Properties Bulk Density (Loose) 1062 lbs/cu yard 1 WT/VOL Bulk Density (Packed) 1483 lbs/cu yard 1 WT/VOL Film Plastics n.d. % 0.1 TMECC 03.08 Glass Fragments n.d. % 0.1 TMECC 03.08 Hard Plastics n.d. % 0.1 TMECC 03.08 Metal Fragment n.d. % 0.1 TMECC 03.08 Sharps absent 0.1 TMECC 03.08 Max. Particle Length 1.0 inches N/A TMECC Sieve Sieve % Passing 3" 100 % 0.01 TMECC Sieve Sieve % Passing 2" 100 % 0.01 TMECC Sieve Sieve % Passing 1.5" 100 % 0.01 TMECC Sieve Sieve % Passing 1" 100 % 0.01 TMECC Sieve Sieve % Passing 3/4" 100 % 0.01 TMECC Sieve Sieve % Passing 5/8" 100 % 0.01 TMECC Sieve Sieve % Passing 3/8" 100 % 0.01 TMECC Sieve Sieve % Passing 1/4" 100 % 0.01 TMECC Sieve CO2 OM Evolution mgCO2-C/gOM/day 0.01 CO2 Solids Evolution mgCO2-C/gTS/day 0.01 PAGE 2/7 ---PAGE BREAK--- Compost Results Interpretations Report 24-080-4013 Page 1 DATE RECEIVED: 2024-03-07 Organic Matter % 20.50 As Received Greater than 20% indicates a desirable range for compost on a dry weight basis. 29.77 Dry Weight C/N Ratio 8.9:1 20-30 indicates an ideal range for the initial compost process. 10-20 indicates an ideal range for a finished compost. Moisture % 31.15 <35% = Indicates overly dry compost >55% = Indicates overly wet compost Compost is a significant source of Organic Matter, which is an important supplier of carbon. Organic Matter improves soil and plant efficiency by improving soil physical properties, providing a source of energy to beneficial organisms, and enhancing the reservoir of soil nutrients. All organic matter is made up of substantial amounts of carbon with lesser amounts of nitrogen. The balance of these two elements is called the Carbon/Nitrogen Ratio. For the best performance, the compost pile requires the correct proportion of carbon for energy and nitrogen for protein production. If the C:N ratio is too high (excess carbon) decomposition slows down. If the C:N ratio is too low (excess Nitrogen) the compost pile could be difficult to manage. Moisture Percent is the measure of water present in the compost and expressed as a percentage of total weight. Moisture present affects handling and transport. Overly dry will be light and dusty while overly wet will be heavy and clumpy. A desirable moisture content of finished compost will range between 40 to 50%. PAGE 3/7 ---PAGE BREAK--- Compost Results Interpretations Report 24-080-4013 Page 2 DATE RECEIVED: 2024-03-07 Conductivity 1:5 3.0 Conductivity Level Interpretation Greater than 10 Very High nutrient content. Use for Ag Applications 5 - 10 High nutrient content. Use for Ag Applications 3 - 5 Higher than desirable for salt sensitive plants, some loss of vigor 0.6 - 3 Desirable range for most plants 0.3 - 0.6 Ideal range for greenhouse growth media 0.0 - 0.3 Very Low: Indicates very low nutrient status: plants may show deficiencies. Conductivity or Soluble Salts measures the conductance of electrical current in a liquid compost slurry. Excessive soluble salt content in a compost can prevent or delay seed germination and proper root growth. Conductivity analysis is done on a 1:5 basis. PAGE 4/7 ---PAGE BREAK--- Compost Results Interpretations Report 24-080-4013 Page 3 DATE RECEIVED: 2024-03-07 pH Value 7.0 0 to 14 scale with 6 to 8 as normal pH levels for compost A pH in the 6 to 8 pH range indicates a more mature compost pH measures the acidity or alkalinity of the compost, and is a measurement of the hydrogen ion activity of a soil or compost on a logarithmic scale. The pH scale ranges from 0 to 14 and 7 indicates a neutral pH. Growing media with a higher pH or pH greater than 7 can benefit from a compost that has a more acidic pH or pH below 7. This type of application will possibly lower the soil pH making the soil more conducive to plants that thrive in a more acidic soil condition. Nutrient Index (Ag Index) >10 The Nutrient Index normally runs between 1 and 10. The Nutrient Index is obtained by dividing the total nutrients (N,P,K) by the amount of salt (Sodium and Chloride). The higher the Nutrient Index the less chance of having a toxic buildup of Sodium (salt) in the soil. AG INDEX CHART 1 2 3 4 5 6 7 8 9 10 > 10 Nutrients (N+P205+K20) 3.38 Average Nutrient Content Dry Weight <2 = Low, >5 = High 1-0.5-0.5 Rating As Received salt injury possible use on soils with excellent drainage characteristics, good water quality and low salts you may use on soils with poor drainage, poor water quality, or high salts for all soils The most commonly used compost data is the amount of Nitrogen, Phosphate, and Potash (abbreviated as N,P,K) present and the information is similar to that found in common fertilizers. If a compost result has the rating 1-2-2 it means that the compost has 1% Nitrogen, 2% Phosphate and 2% Potash. Most compost tests will have a average nutrient level (N+P+K) of < PAGE 5/7 ---PAGE BREAK--- %6WUHHW2PDKD1HEUDVND REPORT NUMBER REPORT DATE SEND TO ISSUE DATE RECEIVED DATE 24-080-4013 Mar 20, 2024 34024 Mar 20, 2024 Mar 07, 2024 REPORT OF ANALYSIS For: (34024) CITY OF LARAMIE WWTP CITY OF LARAMIE WWTP Compost Pkg DAVID SCHILLINGER PO BOX C LARAMIE WY 82073 The result(s) issued on this report only reflect the analysis of the sample(s) submitted. Level Found Reporting Analyst- Verified- Analysis As Received Dry Weight Units Limit Method Date Date Sample ID: 5210632-1 Lab Number: 70430549 Date Sampled: 2024-03-06 1130 Salmonella n.d. n.d. MPN/4g 0.26 EPA 1682 Bab0-2024/03/12 snl7-2024/03/13 Cadmium (total) n.d. 0.61 mg/kg 0.50 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Chromium (total) 8.74 12.7 mg/kg 1.00 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Mercury (total) 0.07 0.10 mg/kg 0.05 EPA 7471 Mab7-2024/03/13 trh1-2024/03/13 Lead (total) 8.8 12.8 mg/kg 5.0 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Molybdenum (total) 1.3 1.9 mg/kg 1.0 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Nickel (total) 8.3 12.0 mg/kg 1.0 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Selenium (total) n.d. n.d. mg/kg 10.0 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Zinc (total) 104.8 152.2 mg/kg 2.0 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Copper (total) 68.0 98.7 mg/kg 1 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Arsenic (total) 2.76 4.01 mg/kg 0.5 EPA 6020 nto7-2024/03/12 trh1-2024/03/13 Aluminum (total) 4420 6420 mg/kg 5.0 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Cobalt (total) 2.28 3.31 mg/kg 1.00 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Total neutralizing value (CaCO3 eq) 4.9 7.1 % 0.1 AOAC 955.01 jed2-2024/03/08 eas2-2024/03/12 PAGE 6/7 ---PAGE BREAK--- %6WUHHW2PDKD1HEUDVND REPORT NUMBER REPORT DATE SEND TO ISSUE DATE RECEIVED DATE 24-080-4013 Mar 20, 2024 34024 Mar 20, 2024 Mar 07, 2024 REPORT OF ANALYSIS For: (34024) CITY OF LARAMIE WWTP CITY OF LARAMIE WWTP Compost Pkg DAVID SCHILLINGER PO BOX C LARAMIE WY 82073 The result(s) issued on this report only reflect the analysis of the sample(s) submitted. Level Found Reporting Analyst- Verified- Analysis As Received Dry Weight Units Limit Method Date Date EPA 1682 holding time of < 6 hours from sampling to laboratory set up of samples for biosolids and compost has been exceeded. If a level of Salmonella was reported, the value would be considered an estimate. Individual states enforce different holding times for compost or biosolids so please contact the regulatory body in your state for their requirements. n.d. = not detected , MPN = most probable number , ppm = parts per million, ppm = mg/kg, ppm = mg/L For questions please contact: Kerri Stanek Account Manager [EMAIL REDACTED] (402)590-2982 PAGE 7/7 ---PAGE BREAK--- ® Our reports and letters are for the exclusive and confidential use of our clients and may not be reproduced in whole or in part, nor may any reference be made to the work, the results, or the company in any advertising, news release, or other public announcements without obtaining our prior written authorization. 13611 B Street • Omaha, Nebraska 68144-3693 • (402) 334-7770 • FAX (402) 334-9121 • www.midwestlabs.com Lab # 70430550 Report of Analysis Report Number: 24-080-4015 Account: DAVID SCHILLINGER 34024 CITY OF LARAMIE WWTP PO BOX C LARAMIE WY 82073 Robert Ferris Account Manager Date Sampled: 2024-03-06 [PHONE REDACTED] Date Received: 2024-03-07 Compost Pkg Sample ID: 5210632-2 Total content, Analysis Analysis lbs per ton (as rec'd) (dry weight) (as rec'd) NUTRIENTS Nitrogen Total Nitrogen % 1.04 1.42 20.8 Organic Nitrogen % 0.93 1.27 18.5 Ammonium Nitrogen % 0.073 0.100 1.5 Nitrate Nitrogen % 0.04 0.05 0.8 Major and Secondary Nutrients Phosphorus % 0.32 0.44 6.4 Phosphorus as P2O5 % 0.73 1.00 14.6 Potassium % 0.56 0.77 11.2 Potassium as K2O % 0.67 0.92 13.4 Sulfur % 0.27 0.37 5.4 Calcium % 2.64 3.61 52.8 Magnesium % 0.60 0.82 12.0 Sodium % 0.070 0.096 1.4 Micronutrients Iron ppm 7750 10605 15.5 Manganese ppm 216 296 0.4 Boron ppm < 100 OTHER PROPERTIES Moisture % 26.92 Total Solids % 73.08 1461.6 Organic Matter % 22.20 30.38 444.0 Ash % 50.60 69.24 1012.0 Total Carbon % 9.49 12.98 Chloride % 0.07 0.10 pH 7.1 Conductivity 1:5 (Soluble Salts) mS/cm 3.21 PAGE 1/7 ---PAGE BREAK--- ® Our reports and letters are for the exclusive and confidential use of our clients and may not be reproduced in whole or in part, nor may any reference be made to the work, the results, or the company in any advertising, news release, or other public announcements without obtaining our prior written authorization. 13611 B Street • Omaha, Nebraska 68144-3693 • (402) 334-7770 • FAX (402) 334-9121 • www.midwestlabs.com Lab # 70430550 Biological & Physical Properties Report Number: 24-080-4015 Account: DAVID SCHILLINGER 34024 CITY OF LARAMIE WWTP PO BOX C LARAMIE WY 82073 Robert Ferris Client Service Representative Date Sampled: 2024-03-06 [PHONE REDACTED] Date Received: 2024-03-07 Compost Pkg Sample ID: 5210632-2 Analysis Analysis (as rec'd) (dry weight) Units Detection Limit Method Biological Properties Germination 100 % 1 TMECC 05.05A Germination Vigor 97.9 % 1 TMECC 05.05A 0.79 TMECC 05.08B 0.64 TMECC 05.08B Fecal Coliform 675 mpn/g 0.2 EPA 1681 Stability Rating Stable N/A N/A TMECC 05.08B Physical Properties Bulk Density (Loose) 1095 lbs/cu yard 1 WT/VOL Bulk Density (Packed) 1517 lbs/cu yard 1 WT/VOL Film Plastics n.d. % 0.1 TMECC 03.08 Glass Fragments n.d. % 0.1 TMECC 03.08 Hard Plastics n.d. % 0.1 TMECC 03.08 Metal Fragment n.d. % 0.1 TMECC 03.08 Sharps absent 0.1 TMECC 03.08 Max. Particle Length 0.5 inches N/A TMECC Sieve Sieve % Passing 3" 100 % 0.01 TMECC Sieve Sieve % Passing 2" 100 % 0.01 TMECC Sieve Sieve % Passing 1.5" 100 % 0.01 TMECC Sieve Sieve % Passing 1" 100 % 0.01 TMECC Sieve Sieve % Passing 3/4" 100 % 0.01 TMECC Sieve Sieve % Passing 5/8" 100 % 0.01 TMECC Sieve Sieve % Passing 3/8" 100 % 0.01 TMECC Sieve Sieve % Passing 1/4" 100 % 0.01 TMECC Sieve CO2 OM Evolution mgCO2-C/gOM/day 0.01 CO2 Solids Evolution mgCO2-C/gTS/day 0.01 PAGE 2/7 ---PAGE BREAK--- Compost Results Interpretations Report 24-080-4015 Page 1 DATE RECEIVED: 2024-03-07 Organic Matter % 22.20 As Received Greater than 20% indicates a desirable range for compost on a dry weight basis. 30.38 Dry Weight C/N Ratio 9.1:1 20-30 indicates an ideal range for the initial compost process. 10-20 indicates an ideal range for a finished compost. Moisture % 26.92 <35% = Indicates overly dry compost >55% = Indicates overly wet compost Compost is a significant source of Organic Matter, which is an important supplier of carbon. Organic Matter improves soil and plant efficiency by improving soil physical properties, providing a source of energy to beneficial organisms, and enhancing the reservoir of soil nutrients. All organic matter is made up of substantial amounts of carbon with lesser amounts of nitrogen. The balance of these two elements is called the Carbon/Nitrogen Ratio. For the best performance, the compost pile requires the correct proportion of carbon for energy and nitrogen for protein production. If the C:N ratio is too high (excess carbon) decomposition slows down. If the C:N ratio is too low (excess Nitrogen) the compost pile could be difficult to manage. Moisture Percent is the measure of water present in the compost and expressed as a percentage of total weight. Moisture present affects handling and transport. Overly dry will be light and dusty while overly wet will be heavy and clumpy. A desirable moisture content of finished compost will range between 40 to 50%. PAGE 3/7 ---PAGE BREAK--- Compost Results Interpretations Report 24-080-4015 Page 2 DATE RECEIVED: 2024-03-07 Conductivity 1:5 3.2 Conductivity Level Interpretation Greater than 10 Very High nutrient content. Use for Ag Applications 5 - 10 High nutrient content. Use for Ag Applications 3 - 5 Higher than desirable for salt sensitive plants, some loss of vigor 0.6 - 3 Desirable range for most plants 0.3 - 0.6 Ideal range for greenhouse growth media 0.0 - 0.3 Very Low: Indicates very low nutrient status: plants may show deficiencies. Conductivity or Soluble Salts measures the conductance of electrical current in a liquid compost slurry. Excessive soluble salt content in a compost can prevent or delay seed germination and proper root growth. Conductivity analysis is done on a 1:5 basis. PAGE 4/7 ---PAGE BREAK--- Compost Results Interpretations Report 24-080-4015 Page 3 DATE RECEIVED: 2024-03-07 pH Value 7.1 0 to 14 scale with 6 to 8 as normal pH levels for compost A pH in the 6 to 8 pH range indicates a more mature compost pH measures the acidity or alkalinity of the compost, and is a measurement of the hydrogen ion activity of a soil or compost on a logarithmic scale. The pH scale ranges from 0 to 14 and 7 indicates a neutral pH. Growing media with a higher pH or pH greater than 7 can benefit from a compost that has a more acidic pH or pH below 7. This type of application will possibly lower the soil pH making the soil more conducive to plants that thrive in a more acidic soil condition. Nutrient Index (Ag Index) >10 The Nutrient Index normally runs between 1 and 10. The Nutrient Index is obtained by dividing the total nutrients (N,P,K) by the amount of salt (Sodium and Chloride). The higher the Nutrient Index the less chance of having a toxic buildup of Sodium (salt) in the soil. AG INDEX CHART 1 2 3 4 5 6 7 8 9 10 > 10 Nutrients (N+P205+K20) 3.34 Average Nutrient Content Dry Weight <2 = Low, >5 = High 1-0.5-0.5 Rating As Received salt injury possible use on soils with excellent drainage characteristics, good water quality and low salts you may use on soils with poor drainage, poor water quality, or high salts for all soils The most commonly used compost data is the amount of Nitrogen, Phosphate, and Potash (abbreviated as N,P,K) present and the information is similar to that found in common fertilizers. If a compost result has the rating 1-2-2 it means that the compost has 1% Nitrogen, 2% Phosphate and 2% Potash. Most compost tests will have a average nutrient level (N+P+K) of < PAGE 5/7 ---PAGE BREAK--- %6WUHHW2PDKD1HEUDVND REPORT NUMBER REPORT DATE SEND TO ISSUE DATE RECEIVED DATE 24-080-4015 Mar 20, 2024 34024 Mar 20, 2024 Mar 07, 2024 REPORT OF ANALYSIS For: (34024) CITY OF LARAMIE WWTP CITY OF LARAMIE WWTP Compost Pkg DAVID SCHILLINGER PO BOX C LARAMIE WY 82073 The result(s) issued on this report only reflect the analysis of the sample(s) submitted. Level Found Reporting Analyst- Verified- Analysis As Received Dry Weight Units Limit Method Date Date Sample ID: 5210632-2 Lab Number: 70430550 Date Sampled: 2024-03-06 1130 Salmonella n.d. n.d. MPN/4g 0.26 EPA 1682 Bab0-2024/03/12 snl7-2024/03/13 Cadmium (total) n.d. 0.65 mg/kg 0.50 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Chromium (total) 10.5 14.4 mg/kg 1.00 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Mercury (total) 0.10 0.14 mg/kg 0.05 EPA 7471 Mab7-2024/03/13 trh1-2024/03/13 Lead (total) 16.4 22.4 mg/kg 5.0 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Molybdenum (total) 1.9 2.6 mg/kg 1.0 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Nickel (total) 9.9 13.6 mg/kg 1.0 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Selenium (total) n.d. n.d. mg/kg 10.0 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Zinc (total) 131.4 179.8 mg/kg 2.0 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Copper (total) 95.0 130 mg/kg 1 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Arsenic (total) 2.78 3.80 mg/kg 0.5 EPA 6020 nto7-2024/03/12 trh1-2024/03/13 Aluminum (total) 4000 5470 mg/kg 5.0 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Cobalt (total) 2.43 3.32 mg/kg 1.00 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Total neutralizing value (CaCO3 eq) n.d. n.d. % 0.1 AOAC 955.01 jed2-2024/03/08 eas2-2024/03/12 PAGE 6/7 ---PAGE BREAK--- %6WUHHW2PDKD1HEUDVND REPORT NUMBER REPORT DATE SEND TO ISSUE DATE RECEIVED DATE 24-080-4015 Mar 20, 2024 34024 Mar 20, 2024 Mar 07, 2024 REPORT OF ANALYSIS For: (34024) CITY OF LARAMIE WWTP CITY OF LARAMIE WWTP Compost Pkg DAVID SCHILLINGER PO BOX C LARAMIE WY 82073 The result(s) issued on this report only reflect the analysis of the sample(s) submitted. Level Found Reporting Analyst- Verified- Analysis As Received Dry Weight Units Limit Method Date Date EPA 1682 holding time of < 6 hours from sampling to laboratory set up of samples for biosolids and compost has been exceeded. If a level of Salmonella was reported, the value would be considered an estimate. Individual states enforce different holding times for compost or biosolids so please contact the regulatory body in your state for their requirements. n.d. = not detected , MPN = most probable number , ppm = parts per million, ppm = mg/kg, ppm = mg/L For questions please contact: Kerri Stanek Account Manager [EMAIL REDACTED] (402)590-2982 PAGE 7/7 ---PAGE BREAK--- ® Our reports and letters are for the exclusive and confidential use of our clients and may not be reproduced in whole or in part, nor may any reference be made to the work, the results, or the company in any advertising, news release, or other public announcements without obtaining our prior written authorization. 13611 B Street • Omaha, Nebraska 68144-3693 • (402) 334-7770 • FAX (402) 334-9121 • www.midwestlabs.com Lab # 70430551 Report of Analysis Report Number: 24-078-4139 Account: DAVID SCHILLINGER 34024 CITY OF LARAMIE WWTP PO BOX C LARAMIE WY 82073 Robert Ferris Account Manager Date Sampled: 2024-03-06 [PHONE REDACTED] Date Received: 2024-03-07 Compost Pkg Sample ID: 5210632-3 Total content, Analysis Analysis lbs per ton (as rec'd) (dry weight) (as rec'd) NUTRIENTS Nitrogen Total Nitrogen % 1.09 1.50 21.8 Organic Nitrogen % 0.98 1.35 19.7 Ammonium Nitrogen % 0.067 0.092 1.3 Nitrate Nitrogen % 0.04 0.05 0.8 Major and Secondary Nutrients Phosphorus % 0.31 0.43 6.2 Phosphorus as P2O5 % 0.71 0.97 14.2 Potassium % 0.56 0.77 11.2 Potassium as K2O % 0.67 0.92 13.4 Sulfur % 0.28 0.38 5.6 Calcium % 2.66 3.65 53.2 Magnesium % 0.62 0.85 12.4 Sodium % 0.070 0.096 1.4 Micronutrients Iron ppm 7580 10398 15.2 Manganese ppm 211 289 0.4 Boron ppm < 100 OTHER PROPERTIES Moisture % 27.10 Total Solids % 72.90 1458.0 Organic Matter % 21.90 30.04 438.0 Ash % 50.80 69.68 1016.0 Total Carbon % 10.31 14.14 Chloride % 0.07 0.10 pH 7.1 Conductivity 1:5 (Soluble Salts) mS/cm 2.99 PAGE 1/7 ---PAGE BREAK--- ® Our reports and letters are for the exclusive and confidential use of our clients and may not be reproduced in whole or in part, nor may any reference be made to the work, the results, or the company in any advertising, news release, or other public announcements without obtaining our prior written authorization. 13611 B Street • Omaha, Nebraska 68144-3693 • (402) 334-7770 • FAX (402) 334-9121 • www.midwestlabs.com Lab # 70430551 Biological & Physical Properties Report Number: 24-078-4139 Account: DAVID SCHILLINGER 34024 CITY OF LARAMIE WWTP PO BOX C LARAMIE WY 82073 Robert Ferris Client Service Representative Date Sampled: 2024-03-06 [PHONE REDACTED] Date Received: 2024-03-07 Compost Pkg Sample ID: 5210632-3 Analysis Analysis (as rec'd) (dry weight) Units Detection Limit Method Biological Properties Germination 100 % 1 TMECC 05.05A Germination Vigor 98.7 % 1 TMECC 05.05A 0.91 TMECC 05.08B 0.62 TMECC 05.08B Fecal Coliform 109 mpn/g 0.2 EPA 1681 Stability Rating Stable N/A N/A TMECC 05.08B Physical Properties Bulk Density (Loose) 1011 lbs/cu yard 1 WT/VOL Bulk Density (Packed) 1415 lbs/cu yard 1 WT/VOL Film Plastics n.d. % 0.1 TMECC 03.08 Glass Fragments n.d. % 0.1 TMECC 03.08 Hard Plastics n.d. % 0.1 TMECC 03.08 Metal Fragment n.d. % 0.1 TMECC 03.08 Sharps absent 0.1 TMECC 03.08 Max. Particle Length 0.5 inches N/A TMECC Sieve Sieve % Passing 3" 100 % 0.01 TMECC Sieve Sieve % Passing 2" 100 % 0.01 TMECC Sieve Sieve % Passing 1.5" 100 % 0.01 TMECC Sieve Sieve % Passing 1" 100 % 0.01 TMECC Sieve Sieve % Passing 3/4" 100 % 0.01 TMECC Sieve Sieve % Passing 5/8" 100 % 0.01 TMECC Sieve Sieve % Passing 3/8" 100 % 0.01 TMECC Sieve Sieve % Passing 1/4" 100 % 0.01 TMECC Sieve CO2 OM Evolution mgCO2-C/gOM/day 0.01 CO2 Solids Evolution mgCO2-C/gTS/day 0.01 PAGE 2/7 ---PAGE BREAK--- Compost Results Interpretations Report 24-078-4139 Page 1 DATE RECEIVED: 2024-03-07 Organic Matter % 21.90 As Received Greater than 20% indicates a desirable range for compost on a dry weight basis. 30.04 Dry Weight C/N Ratio 9.5:1 20-30 indicates an ideal range for the initial compost process. 10-20 indicates an ideal range for a finished compost. Moisture % 27.10 <35% = Indicates overly dry compost >55% = Indicates overly wet compost Compost is a significant source of Organic Matter, which is an important supplier of carbon. Organic Matter improves soil and plant efficiency by improving soil physical properties, providing a source of energy to beneficial organisms, and enhancing the reservoir of soil nutrients. All organic matter is made up of substantial amounts of carbon with lesser amounts of nitrogen. The balance of these two elements is called the Carbon/Nitrogen Ratio. For the best performance, the compost pile requires the correct proportion of carbon for energy and nitrogen for protein production. If the C:N ratio is too high (excess carbon) decomposition slows down. If the C:N ratio is too low (excess Nitrogen) the compost pile could be difficult to manage. Moisture Percent is the measure of water present in the compost and expressed as a percentage of total weight. Moisture present affects handling and transport. Overly dry will be light and dusty while overly wet will be heavy and clumpy. A desirable moisture content of finished compost will range between 40 to 50%. PAGE 3/7 ---PAGE BREAK--- Compost Results Interpretations Report 24-078-4139 Page 2 DATE RECEIVED: 2024-03-07 Conductivity 1:5 3.0 Conductivity Level Interpretation Greater than 10 Very High nutrient content. Use for Ag Applications 5 - 10 High nutrient content. Use for Ag Applications 3 - 5 Higher than desirable for salt sensitive plants, some loss of vigor 0.6 - 3 Desirable range for most plants 0.3 - 0.6 Ideal range for greenhouse growth media 0.0 - 0.3 Very Low: Indicates very low nutrient status: plants may show deficiencies. Conductivity or Soluble Salts measures the conductance of electrical current in a liquid compost slurry. Excessive soluble salt content in a compost can prevent or delay seed germination and proper root growth. Conductivity analysis is done on a 1:5 basis. PAGE 4/7 ---PAGE BREAK--- Compost Results Interpretations Report 24-078-4139 Page 3 DATE RECEIVED: 2024-03-07 pH Value 7.1 0 to 14 scale with 6 to 8 as normal pH levels for compost A pH in the 6 to 8 pH range indicates a more mature compost pH measures the acidity or alkalinity of the compost, and is a measurement of the hydrogen ion activity of a soil or compost on a logarithmic scale. The pH scale ranges from 0 to 14 and 7 indicates a neutral pH. Growing media with a higher pH or pH greater than 7 can benefit from a compost that has a more acidic pH or pH below 7. This type of application will possibly lower the soil pH making the soil more conducive to plants that thrive in a more acidic soil condition. Nutrient Index (Ag Index) >10 The Nutrient Index normally runs between 1 and 10. The Nutrient Index is obtained by dividing the total nutrients (N,P,K) by the amount of salt (Sodium and Chloride). The higher the Nutrient Index the less chance of having a toxic buildup of Sodium (salt) in the soil. AG INDEX CHART 1 2 3 4 5 6 7 8 9 10 > 10 Nutrients (N+P205+K20) 3.39 Average Nutrient Content Dry Weight <2 = Low, >5 = High 1-0.5-0.5 Rating As Received salt injury possible use on soils with excellent drainage characteristics, good water quality and low salts you may use on soils with poor drainage, poor water quality, or high salts for all soils The most commonly used compost data is the amount of Nitrogen, Phosphate, and Potash (abbreviated as N,P,K) present and the information is similar to that found in common fertilizers. If a compost result has the rating 1-2-2 it means that the compost has 1% Nitrogen, 2% Phosphate and 2% Potash. Most compost tests will have a average nutrient level (N+P+K) of < PAGE 5/7 ---PAGE BREAK--- %6WUHHW2PDKD1HEUDVND REPORT NUMBER REPORT DATE SEND TO ISSUE DATE RECEIVED DATE 24-078-4139 Mar 18, 2024 34024 Mar 18, 2024 Mar 07, 2024 REPORT OF ANALYSIS For: (34024) CITY OF LARAMIE WWTP CITY OF LARAMIE WWTP Compost Pkg DAVID SCHILLINGER PO BOX C LARAMIE WY 82073 The result(s) issued on this report only reflect the analysis of the sample(s) submitted. Level Found Reporting Analyst- Verified- Analysis As Received Dry Weight Units Limit Method Date Date Sample ID: 5210632-3 Lab Number: 70430551 Date Sampled: 2024-03-06 1130 Salmonella n.d. n.d. MPN/4g 0.26 EPA 1682 Maw2-2024/03/12 snl7-2024/03/13 Cadmium (total) n.d. 0.63 mg/kg 0.50 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Chromium (total) 9.99 13.7 mg/kg 1.00 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Mercury (total) 0.13 0.18 mg/kg 0.05 EPA 7471 Mab7-2024/03/13 trh1-2024/03/13 Lead (total) 69.0 94.7 mg/kg 5.0 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Molybdenum (total) 1.8 2.5 mg/kg 1.0 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Nickel (total) 9.5 13.0 mg/kg 1.0 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Selenium (total) n.d. n.d. mg/kg 10.0 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Zinc (total) 125.5 172.1 mg/kg 2.0 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Copper (total) 89.7 123 mg/kg 1 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Arsenic (total) 2.80 3.84 mg/kg 0.5 EPA 6020 nto7-2024/03/12 trh1-2024/03/13 Aluminum (total) 3690 5060 mg/kg 5.0 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Cobalt (total) 2.43 3.34 mg/kg 1.00 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Total neutralizing value (CaCO3 eq) 6.3 8.6 % 0.1 AOAC 955.01 jed2-2024/03/08 eas2-2024/03/12 PAGE 6/7 ---PAGE BREAK--- %6WUHHW2PDKD1HEUDVND REPORT NUMBER REPORT DATE SEND TO ISSUE DATE RECEIVED DATE 24-078-4139 Mar 18, 2024 34024 Mar 18, 2024 Mar 07, 2024 REPORT OF ANALYSIS For: (34024) CITY OF LARAMIE WWTP CITY OF LARAMIE WWTP Compost Pkg DAVID SCHILLINGER PO BOX C LARAMIE WY 82073 The result(s) issued on this report only reflect the analysis of the sample(s) submitted. Level Found Reporting Analyst- Verified- Analysis As Received Dry Weight Units Limit Method Date Date EPA 1682 holding time of < 6 hours from sampling to laboratory set up of samples for biosolids and compost has been exceeded. If a level of Salmonella was reported, the value would be considered an estimate. Individual states enforce different holding times for compost or biosolids so please contact the regulatory body in your state for their requirements. n.d. = not detected , MPN = most probable number , ppm = parts per million, ppm = mg/kg, ppm = mg/L For questions please contact: Kerri Stanek Account Manager [EMAIL REDACTED] (402)590-2982 PAGE 7/7 ---PAGE BREAK--- ® Our reports and letters are for the exclusive and confidential use of our clients and may not be reproduced in whole or in part, nor may any reference be made to the work, the results, or the company in any advertising, news release, or other public announcements without obtaining our prior written authorization. 13611 B Street • Omaha, Nebraska 68144-3693 • (402) 334-7770 • FAX (402) 334-9121 • www.midwestlabs.com Lab # 70430552 Report of Analysis Report Number: 24-080-4017 Account: DAVID SCHILLINGER 34024 CITY OF LARAMIE WWTP PO BOX C LARAMIE WY 82073 Robert Ferris Account Manager Date Sampled: 2024-03-06 [PHONE REDACTED] Date Received: 2024-03-07 Compost Pkg Sample ID: 5210632-4 Total content, Analysis Analysis lbs per ton (as rec'd) (dry weight) (as rec'd) NUTRIENTS Nitrogen Total Nitrogen % 1.08 1.52 21.6 Organic Nitrogen % 0.99 1.39 19.8 Ammonium Nitrogen % 0.062 0.087 1.2 Nitrate Nitrogen % 0.03 0.04 0.6 Major and Secondary Nutrients Phosphorus % 0.28 0.39 5.6 Phosphorus as P2O5 % 0.64 0.90 12.8 Potassium % 0.51 0.72 10.2 Potassium as K2O % 0.61 0.86 12.2 Sulfur % 0.25 0.35 5.0 Calcium % 2.56 3.60 51.2 Magnesium % 0.58 0.81 11.6 Sodium % 0.070 0.098 1.4 Micronutrients Iron ppm 7120 10004 14.2 Manganese ppm 198 278 0.4 Boron ppm < 100 OTHER PROPERTIES Moisture % 28.83 Total Solids % 71.17 1423.4 Organic Matter % 19.80 27.82 396.0 Ash % 51.20 71.94 1024.0 Total Carbon % 9.15 12.85 Chloride % 0.06 0.08 pH 7.1 Conductivity 1:5 (Soluble Salts) mS/cm 3.36 PAGE 1/7 ---PAGE BREAK--- ® Our reports and letters are for the exclusive and confidential use of our clients and may not be reproduced in whole or in part, nor may any reference be made to the work, the results, or the company in any advertising, news release, or other public announcements without obtaining our prior written authorization. 13611 B Street • Omaha, Nebraska 68144-3693 • (402) 334-7770 • FAX (402) 334-9121 • www.midwestlabs.com Lab # 70430552 Biological & Physical Properties Report Number: 24-080-4017 Account: DAVID SCHILLINGER 34024 CITY OF LARAMIE WWTP PO BOX C LARAMIE WY 82073 Robert Ferris Client Service Representative Date Sampled: 2024-03-06 [PHONE REDACTED] Date Received: 2024-03-07 Compost Pkg Sample ID: 5210632-4 Analysis Analysis (as rec'd) (dry weight) Units Detection Limit Method Biological Properties Germination 100 % 1 TMECC 05.05A Germination Vigor 99.7 % 1 TMECC 05.05A 0.69 TMECC 05.08B 0.51 TMECC 05.08B Fecal Coliform 693 mpn/g 0.2 EPA 1681 Stability Rating Stable N/A N/A TMECC 05.08B Physical Properties Bulk Density (Loose) 1095 lbs/cu yard 1 WT/VOL Bulk Density (Packed) 1500 lbs/cu yard 1 WT/VOL Film Plastics n.d. % 0.1 TMECC 03.08 Glass Fragments n.d. % 0.1 TMECC 03.08 Hard Plastics n.d. % 0.1 TMECC 03.08 Metal Fragment n.d. % 0.1 TMECC 03.08 Sharps absent 0.1 TMECC 03.08 Max. Particle Length 0.5 inches N/A TMECC Sieve Sieve % Passing 3" 100 % 0.01 TMECC Sieve Sieve % Passing 2" 100 % 0.01 TMECC Sieve Sieve % Passing 1.5" 100 % 0.01 TMECC Sieve Sieve % Passing 1" 100 % 0.01 TMECC Sieve Sieve % Passing 3/4" 100 % 0.01 TMECC Sieve Sieve % Passing 5/8" 100 % 0.01 TMECC Sieve Sieve % Passing 3/8" 100 % 0.01 TMECC Sieve Sieve % Passing 1/4" 99 % 0.01 TMECC Sieve CO2 OM Evolution mgCO2-C/gOM/day 0.01 CO2 Solids Evolution mgCO2-C/gTS/day 0.01 PAGE 2/7 ---PAGE BREAK--- Compost Results Interpretations Report 24-080-4017 Page 1 DATE RECEIVED: 2024-03-07 Organic Matter % 19.80 As Received Greater than 20% indicates a desirable range for compost on a dry weight basis. 27.82 Dry Weight C/N Ratio 8.5:1 20-30 indicates an ideal range for the initial compost process. 10-20 indicates an ideal range for a finished compost. Moisture % 28.83 <35% = Indicates overly dry compost >55% = Indicates overly wet compost Compost is a significant source of Organic Matter, which is an important supplier of carbon. Organic Matter improves soil and plant efficiency by improving soil physical properties, providing a source of energy to beneficial organisms, and enhancing the reservoir of soil nutrients. All organic matter is made up of substantial amounts of carbon with lesser amounts of nitrogen. The balance of these two elements is called the Carbon/Nitrogen Ratio. For the best performance, the compost pile requires the correct proportion of carbon for energy and nitrogen for protein production. If the C:N ratio is too high (excess carbon) decomposition slows down. If the C:N ratio is too low (excess Nitrogen) the compost pile could be difficult to manage. Moisture Percent is the measure of water present in the compost and expressed as a percentage of total weight. Moisture present affects handling and transport. Overly dry will be light and dusty while overly wet will be heavy and clumpy. A desirable moisture content of finished compost will range between 40 to 50%. PAGE 3/7 ---PAGE BREAK--- Compost Results Interpretations Report 24-080-4017 Page 2 DATE RECEIVED: 2024-03-07 Conductivity 1:5 3.4 Conductivity Level Interpretation Greater than 10 Very High nutrient content. Use for Ag Applications 5 - 10 High nutrient content. Use for Ag Applications 3 - 5 Higher than desirable for salt sensitive plants, some loss of vigor 0.6 - 3 Desirable range for most plants 0.3 - 0.6 Ideal range for greenhouse growth media 0.0 - 0.3 Very Low: Indicates very low nutrient status: plants may show deficiencies. Conductivity or Soluble Salts measures the conductance of electrical current in a liquid compost slurry. Excessive soluble salt content in a compost can prevent or delay seed germination and proper root growth. Conductivity analysis is done on a 1:5 basis. PAGE 4/7 ---PAGE BREAK--- Compost Results Interpretations Report 24-080-4017 Page 3 DATE RECEIVED: 2024-03-07 pH Value 7.1 0 to 14 scale with 6 to 8 as normal pH levels for compost A pH in the 6 to 8 pH range indicates a more mature compost pH measures the acidity or alkalinity of the compost, and is a measurement of the hydrogen ion activity of a soil or compost on a logarithmic scale. The pH scale ranges from 0 to 14 and 7 indicates a neutral pH. Growing media with a higher pH or pH greater than 7 can benefit from a compost that has a more acidic pH or pH below 7. This type of application will possibly lower the soil pH making the soil more conducive to plants that thrive in a more acidic soil condition. Nutrient Index (Ag Index) >10 The Nutrient Index normally runs between 1 and 10. The Nutrient Index is obtained by dividing the total nutrients (N,P,K) by the amount of salt (Sodium and Chloride). The higher the Nutrient Index the less chance of having a toxic buildup of Sodium (salt) in the soil. AG INDEX CHART 1 2 3 4 5 6 7 8 9 10 > 10 Nutrients (N+P205+K20) 3.27 Average Nutrient Content Dry Weight <2 = Low, >5 = High 1-0.5-0.5 Rating As Received salt injury possible use on soils with excellent drainage characteristics, good water quality and low salts you may use on soils with poor drainage, poor water quality, or high salts for all soils The most commonly used compost data is the amount of Nitrogen, Phosphate, and Potash (abbreviated as N,P,K) present and the information is similar to that found in common fertilizers. If a compost result has the rating 1-2-2 it means that the compost has 1% Nitrogen, 2% Phosphate and 2% Potash. Most compost tests will have a average nutrient level (N+P+K) of < PAGE 5/7 ---PAGE BREAK--- %6WUHHW2PDKD1HEUDVND REPORT NUMBER REPORT DATE SEND TO ISSUE DATE RECEIVED DATE 24-080-4017 Mar 20, 2024 34024 Mar 20, 2024 Mar 07, 2024 REPORT OF ANALYSIS For: (34024) CITY OF LARAMIE WWTP CITY OF LARAMIE WWTP Compost Pkg DAVID SCHILLINGER PO BOX C LARAMIE WY 82073 The result(s) issued on this report only reflect the analysis of the sample(s) submitted. Level Found Reporting Analyst- Verified- Analysis As Received Dry Weight Units Limit Method Date Date Sample ID: 5210632-4 Lab Number: 70430552 Date Sampled: 2024-03-06 1130 Salmonella n.d. n.d. MPN/4g 0.26 EPA 1682 Bab0-2024/03/12 snl7-2024/03/13 Cadmium (total) n.d. 0.60 mg/kg 0.50 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Chromium (total) 10.5 14.7 mg/kg 1.00 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Mercury (total) 0.06 0.09 mg/kg 0.05 EPA 7471 Mab7-2024/03/13 trh1-2024/03/13 Lead (total) 10.0 14.0 mg/kg 5.0 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Molybdenum (total) 1.6 2.2 mg/kg 1.0 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Nickel (total) 9.2 13.0 mg/kg 1.0 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Selenium (total) n.d. n.d. mg/kg 10.0 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Zinc (total) 138.4 194.4 mg/kg 2.0 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Copper (total) 84.7 119 mg/kg 1 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Arsenic (total) 2.72 3.82 mg/kg 0.5 EPA 6020 nto7-2024/03/12 trh1-2024/03/13 Aluminum (total) 3880 5450 mg/kg 5.0 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Cobalt (total) 2.33 3.28 mg/kg 1.00 EPA 6010 erw9-2024/03/09 trh1-2024/03/13 Total neutralizing value (CaCO3 eq) 4.0 5.6 % 0.1 AOAC 955.01 jed2-2024/03/08 eas2-2024/03/12 PAGE 6/7 ---PAGE BREAK--- %6WUHHW2PDKD1HEUDVND REPORT NUMBER REPORT DATE SEND TO ISSUE DATE RECEIVED DATE 24-080-4017 Mar 20, 2024 34024 Mar 20, 2024 Mar 07, 2024 REPORT OF ANALYSIS For: (34024) CITY OF LARAMIE WWTP CITY OF LARAMIE WWTP Compost Pkg DAVID SCHILLINGER PO BOX C LARAMIE WY 82073 The result(s) issued on this report only reflect the analysis of the sample(s) submitted. Level Found Reporting Analyst- Verified- Analysis As Received Dry Weight Units Limit Method Date Date EPA 1682 holding time of < 6 hours from sampling to laboratory set up of samples for biosolids and compost has been exceeded. If a level of Salmonella was reported, the value would be considered an estimate. Individual states enforce different holding times for compost or biosolids so please contact the regulatory body in your state for their requirements. n.d. = not detected , MPN = most probable number , ppm = parts per million, ppm = mg/kg, ppm = mg/L For questions please contact: Kerri Stanek Account Manager [EMAIL REDACTED] (402)590-2982 PAGE 7/7