MARTIN MARIETTA - LOUISBURG QUARRY

NPDES permit KS0086789 · Minor NON-POTW · effective, expires 2030-06-30 · EPA's file as of 2026-09-19

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

0values over a limit

2required values missing, on 1 form(s)

1of 4 forms filed late

Last period with anything received: 2026-06-30.

Reports are due about 29 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Outfall 001, form A (Treated Wash Water, Pit water and Stormwater runoff): files for periods ending in Jun

Outfall	Parameter	Statistic	Limit	Months
001	Solids, total suspended	MO AVG	<= 30 mg/L	all year
001	Solids, total suspended	DAILY MX	<= 45 mg/L	all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states