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Telephone 209/836-1650 3900 Holly Drive Tracy, California 95376 <br />Postapplication Report : 92-93 <br />Sludge Loading Calculations <br />(A) Lab Results and Field Estimates <br />(for sludge without sand, except where noted) <br />Total Kjeldahl N = <br />29,400 mg/kg (dry basis) <br />Ammonia N = <br />1,790 mg/kg (dry basis) <br />Nitrate N = <br />303 mg/kg (dry basis) <br />Total Phosphorus = <br />18,800 mg/kg (dry basis) <br />Potassium = <br />3,590 mg/kg (dry basis) <br />Cadmium = <br />4.3 mg/kg (dry basis) <br />Copper = <br />337 mg/kg (dry basis) <br />Lead = <br />55 mg/kg (dry basis) <br />Nickel = <br />55 mg/kg (dry basis) <br />Zinc = <br />1,270 mg/kg (dry basis) <br />% Solids = <br />84.9 % <br />Bulk Density = <br />0.77 g/cc (wet basis) <br />= <br />1,294 lbs/cubic yard (wet basis) <br />Sand Was Mixed into Applied Sludge; Characteristics of the Mixture: <br />% Sand = <br />0.0 % of the wet weight <br />Total Volume = <br />2,700 cubic yards <br />Bulk Density Mix = <br />0.77 g/cc (wet basis) <br />= <br />1,294 lbs/cubic yard (wet basis) <br />(B) Nitrogen Concentration Calculations <br />Organic N = <br />(Total Kjeldahl N - Ammonia N) x (% Solids) / 100 <br />Concentration = <br />23,441 mg/kg (wet basis) <br />in Sludge <br />Available N = <br />Ammonia N x % Solids / 100 + Nitrate N x % Solids / 100 + 0.5 * Organic N <br />Concentration = <br />13,497 mg/kg (wet basis) <br />in Sludge <br />Available N = <br />Available N x (100 - %sand) / 100 <br />Concentration = <br />13,497 mg/kg (wet basis) <br />in Sludge -Sand = <br />27.0 lbs of available N/ton (wet basis) <br />Mix <br />(C) Total Weight of Sludge/Sand Mix and Nitrogen in Stockpile <br />Total Weight = <br />Total Yardage x Bulk Density Mix / (2000 lbs/ton) <br />= <br />1747 moist tons of mix <br />Total Available N = <br />Total Weight x Available N Concentration in Mix <br />= <br />47115 lbs of available N <br />Telephone 209/836-1650 3900 Holly Drive Tracy, California 95376 <br />