Example 1, Consider a 1 acre area
n In an area that receives 0.3 m (12 in) of annual
precipitation, 1,234 m3 (1 acre-ft) of water is applied
to the soil surface
n 1,234 m3  (1 acre-ft) = 1,234 m3 (325,000 gal)
n 0.025 m (1 in) rainstorm = 102 m3 (27,000 gal) water
n 102 m3 (27,000 gal) water = 101,604 kg (112 tons)
n 51 kg (112 lbs) sediment @ 500 mg/l TSS