Bellaire Corporation Powhatan No. 1 Mine — NPDES permit OH0011681: limits, due date and EPA's record

NPDES permit OH0011681 · Minor NON-POTW · effective, expires 2031-01-31 · EPA's file as of 2026-09-19

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

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 (27)

Outfall	Parameter	Statistic	Limit	Months
002	pH	DAILY MN	>= 6.5 SU	all year
002	pH	DAILY MX	<= 9 SU	all year
002	Solids, total suspended	MO AVG	<= 35 mg/L	all year
002	Solids, total suspended	DAILY MX	<= 70 mg/L	all year
002	Hardness, total [as CaCO3]	MO AVG	report only	all year
002	Hardness, total [as CaCO3]	DAILY MX	report only	all year
002	Chloride [as Cl]	MO AVG	report only	all year
002	Chloride [as Cl]	DAILY MX	report only	all year
002	Sulfate, total [as SO4]	DAILY MX	<= 2142 mg/L	all year
002	Cobalt, total recoverable	MO AVG	<= 24 ug/L	all year
002	Cobalt, total recoverable	DAILY MX	<= 220 ug/L	all year
002	Boron, total recoverable	MO AVG	<= 3900 ug/L	all year
002	Boron, total recoverable	DAILY MX	<= 33000 ug/L	all year
002	Iron, total [as Fe]	MO AVG	<= 3500 ug/L	all year
002	Iron, total [as Fe]	DAILY MX	<= 7000 ug/L	all year
002	Manganese, total [as Mn]	MO AVG	<= 2000 ug/L	all year
002	Manganese, total [as Mn]	DAILY MX	<= 4000 ug/L	all year
002	Nickel, total recoverable	MO AVG	<= 101 ug/L	all year
002	Nickel, total recoverable	DAILY MX	<= 892 ug/L	all year
002	Zinc, total recoverable	DAILY MX	<= 228 ug/L	all year
002	Lead, total recoverable	MO AVG	<= 17 ug/L	all year
002	Lead, total recoverable	DAILY MX	<= 322 ug/L	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	Mercury, total low level	MO AVG	<= 12 ng/L	all year
002	Mercury, total low level	DAILY MX	<= 1700 ng/L	all year
002	Solids, total dissolved- 180 deg. C	MO AVG	<= 1500 mg/L	all year