SCHEDULE 4CLASSIFICATION

Standards1

The Agency must use the following standards for classification—

Standards for inland waters

Parameter

“Excellent”

“Good”

“Sufficient”

Intestinal enterococci(1)

200(2)

400(2)

330(3)

Escherichia coli(1)

500(2)

1,000(2)

900(3)

(1)

Colony forming units per 100 millilitres (“cfu/100 ml”).

(2)

Based upon a 95-percentile evaluation – see paragraph 2.

(3)

Based upon a 90-percentile evaluation – see paragraph 2.

Standards for coastal and transitional waters

Parameter

“Excellent”

“Good”

“Sufficient”

Intestinal enterococci(1)

100(2)

200(2)

185(3)

Escherichia coli(1)

250(2)

500(2)

500(3)

(1)

Colony forming units per 100 millilitres (“cfu/100 ml”).

(2)

Based upon a 95-percentile evaluation – see paragraph 2.

(3)

Based upon a 90-percentile evaluation – see paragraph 2.