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ANALYTICAL CHEMISTS TEL: 831-724-5422 <br /> and <br /> BACTERIOLOGISTS FAX: 831-724-3188 <br /> Approved by State of California www.controllabs.com <br /> SOIL CONTROL LAB <br /> 42 HANGAR WAY <br /> WATSONVILLE Account#: 2080649-1/1-10748 <br /> CALIFORNIA <br /> 95076 Group: Sep22A#13 <br /> USA Reporting Date: September 12, 2022 <br /> Central Valley Compost (WM- Lathrop) <br /> 916 Frewert Road <br /> Lathrop, CA 95330 <br /> Attn: Jonathan Rocha <br /> Date Received: 31 Aug. 22 <br /> Sample Identification: 12,13,14,15 WM-Yield Compost <br /> Sample ID#: 2080649- 1/1 <br /> Nutrients Dry wt. As Rcvd. units Stability Indicator: <br /> Total Nitrogen: 1.6 1.1 % CO2 Evolution Respirometery <br /> Ammonia (NH4-N): 1300 880 mg/kg mg CO2-C/9 OM/day 11 <br /> Nitrate (NO3-N): 8.6 6.1 mg/kg mg CO2-C/g TS/day 6.1 <br /> Org. Nitrogen (Org.-N): 1.5 1.0 % Stability Rating unstable <br /> Phosphorus (as P205): 0.74 0.52 % <br /> Phosphorus (P): 3200 2300 mg/kg Maturity Indicator: Cucumber Bioassay <br /> Potassium (as K20): 1.2 0.83 % Compost:Vermiculite (v:v) 1:2 <br /> Potassium (K): 9800 6900 mg/kg Emergence (%) 100 <br /> Calcium (Ca): 2.1 1.5 % Seedling Vigor(%) 100 <br /> Magnesium (Mg): 0.50 0.35 % Description of Plants healthy <br /> Sulfate (SO4-S): 330 230 mg/kg <br /> Boron (Total B): 38 27 mg/kg Pathogens Results Units Rating <br /> Moisture: 0 29.7 % Fecal Coliform < 7.5 MPN/g pass <br /> Sodium (Na): 0.18 0.13 % Salmonella < 3 MPN/4g pass <br /> Chloride (Cl): 0.29 0.21 % Date Tested:31 Aug.22 <br /> pH Value: NA 5.71 unit <br /> Bulk Density: 21 29 Ib/cu ft Physical Contaminants' % by dry wt <br /> Carbonates (CaCO3): < 0.1 < 0.1 Ib/ton Total Plastic < 0.1 <br /> Conductivity(EC5): 2.1 NA mmhos/cm Film Plastic < 0.1 <br /> Organic Matter: 54.3 38.2 % Glass < 0.1 <br /> Organic Carbon: 27.0 19.0 % Metal < 0.1 <br /> Ash: 45.7 32.1 % Sharps ND <br /> C/N Ratio 17 17 ratio Total < 0.5 <br /> A Index 8 8 ratio <br /> Metals Dry wt. EPA Limit units Size Distribution <br /> Aluminum (Al): 7000 - mg/kg MM % by weight <br /> Arsenic (As): 3.5 41 mg/kg > 50 0.0 <br /> Cadmium (Cd): < 1.0 39 mg/kg 25 to 50 0.0 <br /> Chromium (Cr): 29 - mg/kg 16 to 25 0.0 <br /> Cobalt(Co) 4.7 - mg/kg 9.5 to 16 0.0 <br /> Copper(Cu): 55 1500 mg/kg 6.3 to 9.5 0.0 <br /> Iron (Fe): 13000 - mg/kg 4.0 to 6.3 0.6 <br /> Lead (Pb): 42 300 mg/kg 2.0 to 4.0 13.2 <br /> Manganese (Mn): 270 - mg/kg j< 2.0 86.2 <br /> Mercury(Hg): < 1.0 17 mg/kg **Greater than 4mm in size (Sharps greater than 2mm) <br /> Molybdenum (Mo): 1.9 75 mg/kg <br /> Nickel (Ni): 20 420 mg/kg Analyst: Assaf Sadeh <br /> Selenium (Se): < 1.0 100 mg/kg <br /> Zinc (Zn): 190 2800 mg/kg <br /> *Sample was received and handled in accordance with TMECC procedures. <br />