City of Logan WTP — NPDES permit OH0008656: limits, due date and EPA's record

NPDES permit OH0008656 · Minor NON-POTW · effective, expires 2028-04-30 · 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: Toxicity [acute], Ceriodaphnia dubia (2).

Reporting

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

Limits in force (25)

Outfall	Parameter	Statistic	Limit	Months
002	Temperature, water deg. centigrade	MO AVG	report only	all year
002	Temperature, water deg. centigrade	DAILY MX	report only	all year
002	Oxygen, dissolved [DO]	DAILY MN	>= 6 mg/L	all year
002	pH	DAILY MN	>= 6.5 SU	all year
002	pH	DAILY MX	<= 9 SU	all year
002	Solids, total suspended	MO AVG	<= 12 mg/L	all year
002	Solids, total suspended	DAILY MX	<= 18 mg/L	all year
002	Solids, total suspended	MO AVG	<= 28.4 kg/d	all year
002	Solids, total suspended	DAILY MX	<= 42.6 kg/d	all year
002	Iron, suspended	MO AVG	<= 1000 ug/L	all year
002	Iron, suspended	DAILY MX	<= 2000 ug/L	all year
002	Iron, suspended	MO AVG	<= 2.37 kg/d	all year
002	Iron, suspended	DAILY MX	<= 4.74 kg/d	all year
002	Manganese, suspended	MO AVG	<= 1000 ug/L	all year
002	Manganese, suspended	DAILY MX	<= 2000 ug/L	all year
002	Manganese, suspended	MO AVG	<= 2.37 kg/d	all year
002	Manganese, suspended	DAILY MX	<= 4.74 kg/d	all year
002	Strontium, total recoverable, ug/L	MO AVG	report only	all year
002	Strontium, total recoverable, ug/L	DAILY MX	report only	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	<= .038 mg/L	all year
002	Toxicity [acute], Ceriodaphnia dubia	DAILY MX	<= 1 tox acute	Mar, Sep
002	Solids, total dissolved- 180 deg. C	MO AVG	report only	all year
002	Solids, total dissolved- 180 deg. C	DAILY MX	report only	all year