Shelly Materials Inc — NPDES permit OH0041335: limits, due date and EPA's record

NPDES permit OH0041335 · Minor NON-POTW · expired, expires 2024-09-30 · EPA's file as of 2026-09-19

This permit expired on 2024-09-30 and is expired: 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

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 (27)

Outfall	Parameter	Statistic	Limit	Months
001	pH	DAILY MN	>= 6.5 SU	all year
001	pH	DAILY MX	<= 9 SU	all year
001	Solids, total suspended	MO AVG	<= 35 mg/L	all year
001	Solids, total suspended	DAILY MX	<= 70 mg/L	all year
001	Iron, total [as Fe]	MO AVG	<= 3500 ug/L	all year
001	Iron, total [as Fe]	DAILY MX	<= 7000 ug/L	all year
001	Manganese, total [as Mn]	MO AVG	<= 2000 ug/L	all year
001	Manganese, total [as Mn]	DAILY MX	<= 4000 ug/L	all year
001	Rainfall	MO AVG	report only	all year
001	Rainfall	DAILY MX	report only	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	Mercury, total low level	MO AVG	report only	Sep
001	Mercury, total low level	DAILY MX	report only	Sep
007	Flow rate	MO AVG	report only	Sep
007	Flow rate	DAILY MX	report only	Sep
007	Oxygen, dissolved [DO]	DAILY MN	report only	Sep
007	pH	DAILY MN	>= 6.5 SU	Sep
007	pH	DAILY MX	<= 9 SU	Sep
007	Solids, total suspended	MO AVG	<= 30 mg/L	Sep
007	Solids, total suspended	DAILY MX	<= 45 mg/L	Sep
007	Nitrogen, ammonia total [as N]	MO AVG	report only	Sep
007	Nitrogen, ammonia total [as N]	DAILY MX	report only	Sep
007	E. coli, MTEC-MF	MO GEOMN	<= 130 MPN/100mL	Sep
007	E. coli, MTEC-MF	WK GEOMN	<= 240 MPN/100mL	Sep
007	BOD, carbonaceous [5 day, 20 C]	MO AVG	<= 25 mg/L	Sep
007	BOD, carbonaceous [5 day, 20 C]	DAILY MX	<= 40 mg/L	Sep