Chemical properties of water treatment residuals.
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Chemical Type of water treatment residual Soil Reference Value (mg/kg) Soil Leaching Value (mg/kg)
Aluminum and iron Calcium
Aluminum 51000 2211 100000
Ammonia nd
Antimony nd 1 100 6.5
Arsenic 35 4.3 7
Barium 205 30.3 18000 2021
Beryllium 1.55 nd 230 3.3
Boron nd 47000 74
Cadmium 0.8 0.2 10.6
Calcium 16700 494367
Carbon 172500 114000
Chromium III 52.5 1.6 650
Copper 48 2 9000 842