SAUK VALLEY COMMUNITY COLLEGE — NPDES permit IL0047520: limits, due date and EPA's record

NPDES permit IL0047520 · Minor NON-POTW · effective, expires 2029-08-31 · EPA's file as of 2026-09-19

EPA's record, 2025-09-01 to 2026-08-31

Reporting

Reports are due about 25 days after each monitoring period ends (the most common figure among IL permits in EPA's filings — check your permit).

Limits in force (23)

Outfall	Parameter	Statistic	Limit	Months
001	pH	MO MIN	>= 6 SU	all year
001	pH	MO MAX	<= 9 SU	all year
001	Solids, total suspended	MO AVG	<= 30 mg/L	all year
001	Solids, total suspended	WKLY AVG	<= 45 mg/L	all year
001	Solids, total suspended	MO AVG	<= 8 lb/d	all year
001	Solids, total suspended	WKLY AVG	<= 11 lb/d	all year
001	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
001	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
001	Chlorine, total residual	DAILY MX	<= .05 mg/L	May, Jun, Jul, Aug, Sep, Oct
001	Chlorine, total residual	DAILY MX	<= .05 mg/L	Jan, Feb, Mar, Apr, Nov, Dec
001	Coliform, fecal general	DAILY MX	<= 400 #/100mL	May, Jun, Jul, Aug, Sep, Oct
001	BOD, carbonaceous [5 day, 20 C]	MO AVG	<= 25 mg/L	all year
001	BOD, carbonaceous [5 day, 20 C]	WKLY AVG	<= 40 mg/L	all year
001	BOD, carbonaceous [5 day, 20 C]	MO AVG	<= 6 lb/d	all year
001	BOD, carbonaceous [5 day, 20 C]	WKLY AVG	<= 10 lb/d	all year
002	Temperature, water deg. fahrenheit	MO MAX	<= 63 deg F	Jan, Feb, Mar, Dec
002	Temperature, water deg. fahrenheit	MO MAX	<= 93 deg F	Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002	pH	MO MIN	>= 6 SU	all year
002	pH	MO MAX	<= 9 SU	all year
002	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
002	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
002	Chlorine, total residual	DAILY MX	<= .05 mg/L	all year
002	Halogen, total residual	DAILY MX	<= .05 mg/L	all year