The Dangerous Couple: Illegal Mining and Water Pollution—A Case Study in Fena River in the Ashanti Region of Ghana

Table 1

CCME water quality index.

Rank	Category	Explanation
95–100	Excellent	Water quality is protected with a virtual absence of threat or impairment; conditions are very close to natural or pristine levels
80–94	Good	Water quality is protected with only a minor degree of threat or impairment; conditions rarely depart from natural or desirable levels
65–79	Fair	Water quality is usually protected but occasionally threatened or impaired; conditions sometimes depart from natural or desirable levels
45–64	Marginal	Water quality is frequently threatened or impaired; conditions often depart from natural or desirable levels
0–44	Poor	Water quality is almost always threatened or impaired; conditions usually depart from natural or desirable levels