Calvey Creek Sewer District — NPDES permit MO0115401: limits, due date and EPA's record

NPDES permit MO0115401 · Minor POTW · effective, expires 2030-07-31 · EPA's file as of 2026-09-19

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

Last period with anything received: 2026-07-31. Most often over: Chlorine, total residual (4), pH (3), Solids, suspended percent removal (3).

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (22)

Outfall	Parameter	Statistic	Limit	Months
002	Oxygen, dissolved [DO]	DAILY MN	report only	Apr, May, Jun, Jul, Aug, Sep, Oct
002	Oxygen, dissolved [DO]	MO AV MN	report only	Apr, May, Jun, Jul, Aug, Sep, Oct
002	BOD, 5-day, 20 deg. C	WKLY AVG	<= 65 mg/L	all year
002	BOD, 5-day, 20 deg. C	MO AVG	<= 45 mg/L	all year
002	pH	MINIMUM	>= 6 SU	all year
002	pH	MAXIMUM	<= 9 SU	all year
002	Solids, total suspended	WKLY AVG	<= 110 mg/L	all year
002	Solids, total suspended	MO AVG	<= 70 mg/L	all year
002	Oil and grease [soxhlet extr.] tot.	DAILY MX	<= 15 mg/L	all year
002	Oil and grease [soxhlet extr.] tot.	MO AVG	<= 10 mg/L	all year
002	Nitrogen, ammonia total [as N]	DAILY MX	report only	all year
002	Nitrogen, ammonia total [as N]	MO AVG	report only	all year
002	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
002	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
002	Chlorine, total residual	DAILY MX	<= 208 ug/L	Apr, May, Jun, Jul, Aug, Sep, Oct
002	Chlorine, total residual	MO AVG	<= 63 ug/L	Apr, May, Jun, Jul, Aug, Sep, Oct
002	E. coli	7 DA GEO	<= 630 #/100mL	Apr, May, Jun, Jul, Aug, Sep, Oct
002	E. coli	30DA GM	<= 126 #/100mL	Apr, May, Jun, Jul, Aug, Sep, Oct
002	BOD, 5-day, percent removal	MO AV MN	>= 65 %	all year
002	Solids, suspended percent removal	MO AV MN	>= 65 %	all year
INF	BOD, 5-day, 20 deg. C	MO AVG	report only	all year
INF	Solids, total suspended	MO AVG	report only	all year