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ANALYTICAL CHEMISTS TEL: 831-724-5422 <br /> and FAX: 831-724-3188 <br /> BACTERIOLOGISTS <br /> www.control labs.com <br /> SOIL CONTROL LAB <br /> 42 HANGAR WAY <br /> WATSONVILLE Account#: 6070354-1/1-10748 <br /> CALIFORNIA <br /> 95076 Group: Ju126E#21 <br /> USA <br /> Reporting Date: August 13, 2026 <br /> Central Valley Compost (WM- Lathrop) <br /> 916 Frewert Road <br /> Lathrop, CA 95330 <br /> Attn: Scott Gamble <br /> Date Received: 29 Jul. 26 <br /> Sample Identification: WM Earthcare Premium Compost <br /> Sample ID#: 6070354- 1/1 <br /> Nutrients Dry wt. As Rcvd. units Stability Indicator: <br /> Total Nitrogen: 1.9 1.5 % CO2 Evolution Respirometery <br /> Ammonia (NH4-N): 690 550 mg/kg mg CO2-C/9 OM/day 5.2 <br /> Nitrate (NO3-N): 4.9 3.9 mg/kg mg CO2-C/g TS/day 2.8 <br /> Org. Nitrogen (Org.-N): 1.8 1.4 % Stability Rating moderately unstable <br /> Phosphorus (as P205): 0.80 0.63 % <br /> Phosphorus (P): 3500 2800 mg/kg Maturity Indicator: Cucumber Bioassay <br /> Potassium (as K20): 1.2 0.98 % Compost:Vermiculite (v:v) 1:2 <br /> Potassium (K): 10000 8100 mg/kg Emergence (%) 100 <br /> Calcium (Ca): 2.4 1.9 % Seedling Vigor(%) 98 <br /> Magnesium (Mg): 0.52 0.41 % Description of Plants healthy <br /> Sulfate (SO4-S): 330 260 mg/kg <br /> Boron (Total B): 44 35 mg/kg Pathogens Results Units Rating <br /> Moisture: 0 20.9 % Fecal Coliform < 7.5 MPN/g pass <br /> Sodium (Na): 0.18 0.14 % Salmonella < 3 MPN/4g pass <br /> Chloride (Cl): 0.27 0.22 % Date Tested:29 Jul.26 <br /> pH Value: NA 6.59 unit <br /> Bulk Density: 28 35 Ib/cu ft Physical Contaminants' % by dry wt <br /> Carbonates (CaCO3): 29 23 Ib/ton Total Plastic < 0.1 <br /> Conductivity(EC5): 4.8 NA mmhos/cm Film Plastic < 0.1 <br /> Organic Matter: 54.5 43.1 % Glass 0.14 <br /> Organic Carbon: 29.0 23.0 % Metal < 0.1 <br /> Ash: 45.5 36.0 % Sharps ND <br /> C/N Ratio 15 15 ratio Total < 0.5 <br /> A Index 9 9 ratio <br /> Metals Dry wt. EPA Limit units Size Distribution <br /> Aluminum (Al): 8000 - mg/kg MM % by weight <br /> Arsenic (As): 4.3 41 mg/kg > 50 0.0 <br /> Cadmium (Cd): 1.5 39 mg/kg 25 to 50 0.0 <br /> Chromium (Cr): 28 - mg/kg 16 to 25 0.0 <br /> Cobalt(Co) 6.4 - mg/kg 9.5 to 16 0.4 <br /> Copper(Cu): 90 1500 mg/kg 6.3 to 9.5 5.5 <br /> Iron (Fe): 13000 - mg/kg 4.0 to 6.3 9.8 <br /> Lead (Pb): 47 300 mg/kg 2.0 to 4.0 18.1 <br /> Manganese (Mn): 340 - mg/kg j< 2.0 66.2 <br /> Mercury(Hg): < 1.0 17 mg/kg "Greater than 4mm in size (Sharps greater than 2mm) <br /> Molybdenum (Mo): 2.8 75 mg/kg <br /> Nickel (Ni): 23 420 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 />