ABSTRACT

Table 1.4.4 lists the hazard prevention measures in the case of the coal cycle (source: Chadwick et al., 1987, p. 223).

When the soil or sediment cover is removed in the process of quarrying, their filtering and attenuation capabilities would have been lost, thus exposing the groundwater to greater risks of pollution. Groundwater could also be contaminated due to some ancillary activities associated with quarrying, such as, accidental spillages of fuel oil, leakages from storage tanks or toilets for workers, or draining of water from the surrounding areas into the quarry, etc.