City of Conway — NPDES permit MO0031674: limits, due date and EPA's record

NPDES permit MO0031674 · Minor POTW · administratively continued, expires 2023-12-31 · EPA's file as of 2026-09-19

Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

This permit expired on 2023-12-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

Last period with anything received: 2026-07-31. Most often over: Nitrogen, ammonia total [as N] (7), Solids, total suspended (5), 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 (16)

Outfall	Parameter	Statistic	Limit	Months
001	BOD, 5-day, 20 deg. C	WKLY AVG	<= 45 mg/L	all year
001	BOD, 5-day, 20 deg. C	MO AVG	<= 30 mg/L	all year
001	pH	MINIMUM	>= 6.5 SU	all year
001	pH	MAXIMUM	<= 9 SU	all year
001	Solids, total suspended	WKLY AVG	<= 45 mg/L	all year
001	Solids, total suspended	MO AVG	<= 30 mg/L	all year
001	Oil and grease [soxhlet extr.] tot.	DAILY MX	<= 15 mg/L	all year
001	Oil and grease [soxhlet extr.] tot.	MO AVG	<= 10 mg/L	all year
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 9.8 mg/L	Jan, Feb, Mar, Oct, Nov, Dec
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 5.9 mg/L	Apr, May, Jun, Jul, Aug, Sep
001	Nitrogen, ammonia total [as N]	MO AVG	<= 2.8 mg/L	Jan, Feb, Mar, Oct, Nov, Dec
001	Nitrogen, ammonia total [as N]	MO AVG	<= 1.1 mg/L	Apr, May, Jun, Jul, Aug, Sep
001	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
001	Flow, in conduit or thru treatment plant	MO AVG	report only	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