Former WKI Facility Groundwater Remediation System — NPDES permit OH0003956: limits, due date and EPA's record

NPDES permit OH0003956 · Minor NON-POTW · effective, expires 2031-03-31 · 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 (28)

Outfall	Parameter	Statistic	Limit	Months
002	Temperature, water deg. centigrade	MO AVG	<= 27.8 deg C	all year
002	Temperature, water deg. centigrade	DAILY MX	<= 29.4 deg C	all year
002	pH	DAILY MN	>= 6.5 SU	all year
002	pH	DAILY MX	<= 9 SU	all year
002	Oil and grease, hexane extr method	DAILY MX	<= 10 mg/L	all year
002	Oil and grease, hexane extr method	DAILY MX	<= 33 kg/d	all year
002	Carbon, tot organic [TOC]	MO AVG	report only	all year
002	Carbon, tot organic [TOC]	DAILY MX	report only	all year
002	Copper, dissolved [as Cu]	MO AVG	report only	all year
002	Copper, dissolved [as Cu]	DAILY MX	report only	all year
002	Methylene chloride	MO AVG	report only	all year
002	Methylene chloride	DAILY MX	report only	all year
002	1,1-Dichloroethane	MO AVG	report only	all year
002	1,1-Dichloroethane	DAILY MX	report only	all year
002	1,1-Dichloroethylene	MO AVG	report only	all year
002	1,1-Dichloroethylene	DAILY MX	report only	all year
002	1,1,1-Trichloroethane	MO AVG	report only	all year
002	1,1,1-Trichloroethane	DAILY MX	report only	all year
002	Vinyl chloride	MO AVG	report only	all year
002	Vinyl chloride	DAILY MX	report only	all year
002	Trichloroethylene	MO AVG	report only	all year
002	Trichloroethylene	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	Halogen, total organic	MO AVG	report only	all year
002	Halogen, total organic	DAILY MX	report only	all year
002	Acetone	MO AVG	report only	all year
002	Acetone	DAILY MX	report only	all year