Ground-water quality below the mined coal did not at first respond to the mining. TERMS: strip mine; surface mine; hydrology; curve number;.
In the above example, the site has been extensively strip mined. are needed to use TR drainage area, curve number (CN). and time of concentration (Tc).
hydrologic soil-cover complex that defines a Curve Number (CN). This chapter provides tables. 85 sand dunes, strip mines, gravel pits and.