Harsco Metals — NPDES permit OH0053040: limits, due date and EPA's record

NPDES permit OH0053040 · Minor NON-POTW · effective, expires 2026-11-30 · 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.

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

Last period with anything received: 2026-07-31. Most often over: Solids, total suspended (8).

Reporting

Reports are due about 20 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (19)

Outfall	Parameter	Statistic	Limit	Months
001	Oxygen demand, chem. [high level] [COD]	MO AVG	report only	Mar, Jun, Aug, Dec
001	Oxygen demand, chem. [high level] [COD]	DAILY MX	report only	Mar, Jun, Aug, Dec
001	pH	DAILY MN	>= 6.5 SU	all year
001	pH	DAILY MX	<= 9 SU	all year
001	Solids, total suspended	MO AVG	<= 30 mg/L	all year
001	Solids, total suspended	DAILY MX	<= 45 mg/L	all year
001	Oil and grease [soxhlet extr.] tot.	DAILY MX	<= 10 mg/L	all year
001	Copper, total [as Cu]	MO AVG	report only	Mar, Jun, Aug, Dec
001	Copper, total [as Cu]	DAILY MX	report only	Mar, Jun, Aug, Dec
001	Iron, total [as Fe]	MO AVG	report only	Mar, Jun, Aug, Dec
001	Iron, total [as Fe]	DAILY MX	report only	Mar, Jun, Aug, Dec
001	Lead, total [as Pb]	MO AVG	report only	Mar, Jun, Aug, Dec
001	Lead, total [as Pb]	DAILY MX	report only	Mar, Jun, Aug, Dec
001	Zinc, total [as Zn]	MO AVG	report only	Mar, Jun, Aug, Dec
001	Zinc, total [as Zn]	DAILY MX	report only	Mar, Jun, Aug, Dec
001	Aluminum, total [as Al]	MO AVG	report only	Mar, Jun, Aug, Dec
001	Aluminum, total [as Al]	DAILY MX	report only	Mar, Jun, Aug, Dec
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