Lhoist North America - Crab Orchard Plant

NPDES permit TN0063631 · Minor NON-POTW · effective, expires 2030-08-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
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

0values over a limit
0required values missing, on 0 form(s)
0of 77 forms filed late

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among TN permits in EPA's filings — check your permit).

Limits in force (102)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6 SU all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 40 mg/L all year
001Solids, total suspendedMO AVG <= 40 mg/L all year
001Solids, total suspendedDAILY MX <= 40 mg/L all year
001Solids, total suspendedDAILY MX <= 40 mg/L all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
002pHMINIMUM >= 6 SU all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 9 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedMO AVG <= 40 mg/L all year
002Solids, total suspendedMO AVG <= 40 mg/L all year
002Solids, total suspendedDAILY MX <= 40 mg/L all year
002Solids, total suspendedDAILY MX <= 40 mg/L all year
002Flow, in conduit or thru treatment plantMO AVG report only 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
002Flow, in conduit or thru treatment plantDAILY MX report only all year
003pHMINIMUM >= 6 SU all year
003pHMINIMUM >= 6 SU all year
003pHMAXIMUM <= 9 SU all year
003pHMAXIMUM <= 9 SU all year
003Solids, total suspendedMO AVG <= 40 mg/L all year
003Solids, total suspendedMO AVG <= 40 mg/L all year
003Solids, total suspendedDAILY MX <= 40 mg/L all year
003Solids, total suspendedDAILY MX <= 40 mg/L all year
003Flow, in conduit or thru treatment plantMO AVG report only 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
003Flow, in conduit or thru treatment plantDAILY MX report only all year
004pHMINIMUM >= 6 SU all year
004pHMINIMUM >= 6 SU all year
004pHMAXIMUM <= 9 SU all year
004pHMAXIMUM <= 9 SU all year
004Solids, total suspendedMO AVG <= 40 mg/L all year
004Solids, total suspendedMO AVG <= 40 mg/L all year
004Solids, total suspendedDAILY MX <= 40 mg/L all year
004Solids, total suspendedDAILY MX <= 40 mg/L all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
005pHMINIMUM >= 6 SU all year
005pHMINIMUM >= 6 SU all year
005pHMAXIMUM <= 9 SU all year
005pHMAXIMUM <= 9 SU all year
005Solids, total suspendedMO AVG <= 40 mg/L all year
005Solids, total suspendedMO AVG <= 40 mg/L all year
005Solids, total suspendedDAILY MX <= 40 mg/L all year
005Solids, total suspendedDAILY MX <= 40 mg/L all year
005Flow, in conduit or thru treatment plantMO AVG report only all year
005Flow, in conduit or thru treatment plantMO AVG report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
006pHDAILY MN >= 6 SU all year
006pHDAILY MN >= 6 SU all year
006pHDAILY MX <= 9 SU all year
006pHDAILY MX <= 9 SU all year
006Solids, total suspendedMO AVG <= 40 mg/L all year
006Solids, total suspendedMO AVG <= 40 mg/L all year
006Solids, total suspendedDAILY MX <= 40 mg/L all year
006Solids, total suspendedDAILY MX <= 40 mg/L all year
006Flow, in conduit or thru treatment plantMO AVG report only all year
006Flow, in conduit or thru treatment plantMO AVG report only all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
SW01pHMINIMUM >= 6 SU (alert) all year
SW01pHMAXIMUM <= 9 SU (alert) all year
SW01Solids, total suspendedMAXIMUM <= 100 mg/L (alert) all year
SW01Oil and grease, hexane extr methodMAXIMUM <= 15 mg/L (alert) all year
SW01Flow, in conduit or thru treatment plantMINIMUM report only (alert) all year
SW01Flow, in conduit or thru treatment plantMAXIMUM report only (alert) all year
SW02pHMINIMUM >= 6 SU (alert) all year
SW02pHMAXIMUM <= 9 SU (alert) all year
SW02Solids, total suspendedMAXIMUM <= 100 mg/L (alert) all year
SW02Oil and grease, hexane extr methodMAXIMUM <= 15 mg/L (alert) all year
SW02Flow, in conduit or thru treatment plantMINIMUM report only (alert) all year
SW02Flow, in conduit or thru treatment plantMAXIMUM report only (alert) all year
SW03pHMINIMUM >= 6 SU (alert) all year
SW03pHMAXIMUM <= 9 SU (alert) all year
SW03Solids, total suspendedMAXIMUM <= 100 mg/L (alert) all year
SW03Oil and grease, hexane extr methodMAXIMUM <= 15 mg/L (alert) all year
SW03Flow, in conduit or thru treatment plantMINIMUM report only (alert) all year
SW03Flow, in conduit or thru treatment plantMAXIMUM report only (alert) all year
SW04pHMINIMUM >= 6 SU (alert) all year
SW04pHMAXIMUM <= 9 SU (alert) all year
SW04Solids, total suspendedMAXIMUM <= 100 mg/L (alert) all year
SW04Oil and grease, hexane extr methodMAXIMUM <= 15 mg/L (alert) all year
SW04Flow, in conduit or thru treatment plantMINIMUM report only (alert) all year
SW04Flow, in conduit or thru treatment plantMAXIMUM report only (alert) all year
SW05pHMINIMUM >= 6 SU (alert) all year
SW05pHMAXIMUM <= 9 SU (alert) all year
SW05Solids, total suspendedMAXIMUM <= 100 mg/L (alert) all year
SW05Oil and grease, hexane extr methodMAXIMUM <= 15 mg/L (alert) all year
SW05Flow, in conduit or thru treatment plantMINIMUM report only (alert) all year
SW05Flow, in conduit or thru treatment plantMAXIMUM report only (alert) 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