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ANALYTICAL CHEMISTS TEL: 831-724-5422 <br /> and FAX: 831-724-3188 <br /> BACTERIOLOGISTS <br /> www.controllabs.com <br /> SOIL CONTROL LAB <br /> 42 HANGAR WAY <br /> WATSONVILLE Account#: 6030339-1/1-10748 <br /> CALIFORNIA <br /> 95076 Group: Mar26D#23 <br /> USA <br /> Reporting Date: April 9, 2026 <br /> Central Valley Compost (WM- Lathrop) <br /> 916 Frewert Road <br /> Lathrop, CA 95330 <br /> Attn: Abel Aceves <br /> Date Received: 25 Mar. 26 <br /> Sample Identification: 21,22,23,24 (WM-Yield Compost) <br /> Sample ID#: 6030339- 1/1 <br /> Nutrients Dry wt. As Rcvd. units Stability Indicator: <br /> Total Nitrogen: 1.8 1.3 % CO2 Evolution Respirometery <br /> Ammonia (NH4-N): 220 150 mg/kg mg CO2-C/9 OM/day 4.5 <br /> Nitrate (NO3-N): 15 11 mg/kg mg CO2-C/g TS/day 2.4 <br /> Org. Nitrogen (Org.-N): 1.8 1.3 % Stability Rating moderately unstable <br /> Phosphorus (as P205): 0.77 0.54 % <br /> Phosphorus (P): 3400 2400 mg/kg Maturity Indicator: Cucumber Bioassay <br /> Potassium (as K20): 1.4 0.99 % Compost:Vermiculite (v:v) 1:2 <br /> Potassium (K): 12000 8300 mg/kg Emergence (%) 100 <br /> Calcium (Ca): 2.4 1.7 % Seedling Vigor(%) 100 <br /> Magnesium (Mg): 0.57 0.40 % Description of Plants healthy <br /> Sulfate (SO4-S): 220 150 mg/kg <br /> Boron (Total B): 46 32 mg/kg Pathogens Results Units Rating <br /> Moisture: 0 30.0 % Fecal Coliform 6.4 MPN/g pass <br /> Sodium (Na): 0.18 0.13 % Salmonella < 3 MPN/4g pass <br /> Chloride (Cl): 0.32 0.22 % Date Tested:25 Mar.26 <br /> pH Value: NA 7.15 unit <br /> Bulk Density: 23 32 Ib/cu ft Physical Contaminants' % by dry wt <br /> Carbonates (CaCO3): < 0.1 < 0.1 lb/ton Total Plastic < 0.1 <br /> Conductivity(EC5): 4.3 NA mmhos/cm Film Plastic < 0.1 <br /> Organic Matter: 52.6 36.8 % Glass 0.20 <br /> Organic Carbon: 28.0 20.0 % Metal < 0.1 <br /> Ash: 47.4 33.2 % Sharps ND <br /> C/N Ratio 15 15 ratio Total < 0.5 <br /> A Index 8 8 ratio <br /> Metals Dry wt. EPA Limit units Size Distribution <br /> Aluminum (Al): 9300 - mg/kg MM % by weight <br /> Arsenic (As): 2.9 41 mg/kg > 50 0.0 <br /> Cadmium (Cd): < 1.0 39 mg/kg 25 to 50 0.0 <br /> Chromium (Cr): 45 - mg/kg 16 to 25 0.0 <br /> Cobalt(Co) 5.2 - mg/kg 9.5 to 16 0.0 <br /> Copper(Cu): 80 1500 mg/kg 6.3 to 9.5 0.5 <br /> Iron (Fe): 13000 - mg/kg 4.0 to 6.3 3.7 <br /> Lead (Pb): 58 300 mg/kg 2.0 to 4.0 12.7 <br /> Manganese (Mn): 320 - mg/kg j< 2.0 83.1 <br /> Mercury(Hg): < 1.0 17 mg/kg **Greater than 4mm in size (Sharps greater than 2mm) <br /> Molybdenum (Mo): 3.2 75 mg/kg <br /> Nickel (Ni): 24 420 mg/kg Analyst: Assaf Sadeh <br /> Selenium (Se): < 1.0 100 mg/kg <br /> Zinc (Zn): 260 2800 mg/kg <br /> *Sample was received and handled in accordance with TMECC procedures. <br />