Koppers Utility & Industrial Products — NPDES permit VA0059056: limits, due date and EPA's record

NPDES permit VA0059056 · Minor NON-POTW · effective, expires 2027-12-31 · 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

Reporting

Reports are due about 10 days after each monitoring period ends (the most common figure among VA permits in EPA's filings — check your permit).

Limits in force (11)

Outfall	Parameter	Statistic	Limit	Months
002	Oxygen demand, chem. [low level] [COD]	MAXIMUM	report only	all year
002	pH	MINIMUM	>= 6 SU	all year
002	pH	MAXIMUM	<= 9 SU	all year
002	Solids, total suspended	MAXIMUM	report only	all year
002	Hardness, total [as CaCO3]	MAXIMUM	report only	all year
002	Arsenic, total [as As]	MAXIMUM	report only	all year
002	Chromium, total [as Cr]	MAXIMUM	report only	all year
002	Copper, total [as Cu]	MAXIMUM	report only	all year
002	Petrol hydrocarbons, total recoverable	MAXIMUM	<= 15 mg/L	all year
002	Precipitation volume	ET	report only	all year
002	pH exchange [su]	MAXIMUM	report only	all year