RIVERSIDE WATER AND SEWER DISTRICT — NPDES permit ID0024503: limits, due date and EPA's record

NPDES permit ID0024503 · Minor POTW · effective, expires 2026-12-31 · EPA's file as of 2026-09-19

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

Last period with anything received: 2026-08-31. Most often over: BOD, 5-day, percent removal (1), Solids, suspended percent removal (1).

Reporting

Reports are due about 20 days after each monitoring period ends (the most common figure among ID permits in EPA's filings — check your permit).

Limits in force (23)

Outfall	Parameter	Statistic	Limit	Months
001	Temperature, water deg. centigrade	DAILY MX	report only	all year
001	BOD, 5-day, 20 deg. C	MO AVG	<= 30 mg/L	all year
001	BOD, 5-day, 20 deg. C	WKLY AVG	<= 45 mg/L	all year
001	BOD, 5-day, 20 deg. C	MO AVG	<= 220 lb/d	all year
001	BOD, 5-day, 20 deg. C	WKLY AVG	<= 330 lb/d	all year
001	pH	INST MIN	>= 6.5 SU	all year
001	pH	INST MAX	<= 9 SU	all year
001	Solids, total suspended	MO AVG	<= 45 mg/L	all year
001	Solids, total suspended	WKLY AVG	<= 65 mg/L	all year
001	Solids, total suspended	MO AVG	<= 330 lb/d	all year
001	Solids, total suspended	WKLY AVG	<= 477 lb/d	all year
001	Nitrogen, ammonia total [as N]	MO AVG	report only	all year
001	Nitrogen, ammonia total [as N]	DAILY MX	report only	all year
001	E. coli, MTEC-MF	GEO MEAN	<= 126 CFU/100mL	all year
001	E. coli, MTEC-MF	INST MAX	<= 406 CFU/100mL	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	MO AVG	<= .5 mg/L	all year
001	Chlorine, total residual	WKLY AVG	<= .75 mg/L	all year
001	Chlorine, total residual	MO AVG	<= 3.7 lb/d	all year
001	Chlorine, total residual	WKLY AVG	<= 5.5 lb/d	all year
001	BOD, 5-day, percent removal	MO AV MN	>= 85 %	all year
001	Solids, suspended percent removal	MO AV MN	>= 85 %	all year