Correlation, Regression Analysis, and Spatial Distribution Mapping of WQI for an Urban Lake in Noyyal River Basin in the Textile Capital of India

Table 2

Horton’s WQI.

S. no.	For drinking		For irrigation
	WQI	Classification	WQI	Classification
1	0–25	Excellent	0–100	Excellent
2	26–50	Good	101–150	Good
3	51–75	Fair	151–200	Fair
4	76–100	Poor	>200	Poor
5	101–150	Very Poor
6	>150	Unfit for drinking