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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#: 3060398-1/1-10748 <br /> CALIFORNIA <br /> 95076 Group: Jun23C#39 <br /> USA Reporting Date: June 28, 2023 <br /> Central Valley Compost (WM- Lathrop) <br /> 916 Frewert Road <br /> Lathrop, CA 95330 <br /> Attn: Abel Aceves <br /> Date Received: 16 Jun. 23 <br /> Sample Identification: 28, 29, 30, 31 <br /> Sample ID#: 3060398- 1/1 <br /> Nutrients Dry wt. As Rcvd. units Stability Indicator: <br /> Total Nitrogen: 1.5 0.91 % CO2 Evolution Respirometery <br /> Ammonia (NH4-N): 74 44 mg/kg mg CO2-C/9 OM/day 1.7 <br /> Nitrate (NO3-N): 1.4 0.84 mg/kg mg CO2-C/g TS/day 0.75 <br /> Org. Nitrogen (Org.-N): 1.5 0.91 % Stability Rating very stable <br /> Phosphorus (as P205): 0.52 0.31 % <br /> Phosphorus (P): 2300 1400 mg/kg Maturity Indicator: Cucumber Bioassay <br /> Potassium (as K20): 0.73 0.44 % Compost:Vermiculite (v:v) 1:2 <br /> Potassium (K): 6100 3600 mg/kg Emergence (%) 100 <br /> Calcium (Ca): 2.5 1.5 % Seedling Vigor(%) 100 <br /> Magnesium (Mg): 0.49 0.29 % Description of Plants healthy <br /> Sulfate (SO4-S): 110 63 mg/kg <br /> Boron (Total B): 39 23 mg/kg Pathogens Results Units Rating <br /> Moisture: 0 40.4 % Fecal Coliform < 7.5 MPN/g pass <br /> Sodium (Na): 0.12 0.069 % Salmonella < 3 MPN/4g pass <br /> Chloride (Cl): 0.19 0.11 % Date Tested: 16 Jun.23 <br /> pH Value: NA 8.42 unit <br /> Bulk Density: 27 46 Ib/cu ft Physical Contaminants** % by dry wt <br /> Carbonates (CaCO3): 33 20 Ib/ton Total Plastic < 0.1 <br /> Conductivity(EC5): 2.1 NA mmhos/cm Film Plastic < 0.1 <br /> Organic Matter: 44.3 26.4 % Glass < 0.1 <br /> Organic Carbon: 25.0 15.0 % Metal < 0.1 <br /> Ash: 55.7 33.2 % Sharps ND <br /> C/N Ratio 16 16 ratio Total < 0.5 <br /> A Index 9 9 ratio <br /> Metals Dry wt. EPA Limit units Size Distribution <br /> Aluminum (Al): 4900 - mg/kg MM % by weight <br /> Arsenic (As): 2.2 41 mg/kg > 50 0.0 <br /> Cadmium (Cd): < 1.0 39 mg/kg 25 to 50 0.0 <br /> Chromium (Cr): 20 - mg/kg 16 to 25 0.0 <br /> Cobalt(Co) 4.5 - mg/kg 9.5 to 16 0.1 <br /> Copper(Cu): 52 1500 mg/kg 6.3 to 9.5 2.6 <br /> Iron (Fe): 9400 - mg/kg 4.0 to 6.3 8.8 <br /> Lead (Pb): 28 300 mg/kg 2.0 to 4.0 17.2 <br /> Manganese (Mn): 260 - mg/kg j< 2.0 71.3 <br /> Mercury(Hg): < 1.0 17 mg/kg **Greater than 4mm in size (Sharps greater than 2mm) <br /> Molybdenum (Mo): < 1.0 75 mg/kg <br /> Nickel (Ni): 17 420 mg/kg Analyst: Assaf Sadeh <br /> Selenium (Se): < 1.0 100 mg/kg <br /> Zinc (Zn): 130 2800 mg/kg <br /> *Sample was received and handled in accordance with TMECC procedures. <br />