Martin Marietta Materials, Inc - Du Bois Quarry

NPDES permit NE0113719 · Minor NON-POTW · effective, expires 2030-12-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

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

0values over a limit
0required values missing, on 0 form(s)
0of 28 forms filed late

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

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among NE permits in EPA's filings — check your permit).

Limits in force (28)

OutfallParameterStatisticLimitMonths
002Temperature, water deg. fahrenheitVALUE report only all year
002BOD, 5-day, 20 deg. CVALUE report only all year
002pHDAILY MN >= 6.5 SU all year
002pHDAILY MX <= 9 SU all year
002Solids, total suspendedMO AVG <= 25 mg/L all year
002Solids, total suspendedDAILY MX <= 45 mg/L all year
002Solids, total suspendedVALUE report only all year
002Nitrogen, ammonia total [as N]VALUE report only all year
002Carbon, tot organic [TOC]VALUE report only all year
002Hydrocarbons, total gas chromatographMO AVG report only all year
002Hydrocarbons, total gas chromatographDAILY MX <= 10 mg/L all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Chemical Oxygen Demand [COD]VALUE report only all year
003Temperature, water deg. fahrenheitVALUE report only all year
003BOD, 5-day, 20 deg. CVALUE report only all year
003pHDAILY MN >= 6.5 SU all year
003pHDAILY MX <= 9 SU all year
003Solids, total suspendedMO AVG <= 25 mg/L all year
003Solids, total suspendedDAILY MX <= 45 mg/L all year
003Solids, total suspendedVALUE report only all year
003Nitrogen, ammonia total [as N]VALUE report only all year
003Carbon, tot organic [TOC]VALUE report only all year
003Hydrocarbons, total gas chromatographMO AVG report only all year
003Hydrocarbons, total gas chromatographDAILY MX <= 10 mg/L all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Chemical Oxygen Demand [COD]VALUE report only 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