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Lhoist North America - Crab Orchard Plant

Crushed And Broken Limestone, Crab Orchard, Tennessee. NPDES permit TN0063631, in force until Aug 31, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form G quarterly (12 values), outfall 002 form G quarterly (12 values), outfall 003 form G quarterly (12 values), outfall 004 form G quarterly (12 values), outfall 005 form G quarterly (12 values), outfall 006 form G quarterly (12 values), and 5 more forms
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 61 reports late

Limits in force (102)

ParameterStatisticLimitMonthsOutfall
pHminimum≥ 6 SUall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 40 mg/Lall year001
Solids, total suspendedmonthly average≤ 40 mg/Lall year001
Solids, total suspendeddaily maximum≤ 40 mg/Lall year001
Solids, total suspendeddaily maximum≤ 40 mg/Lall year001
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/min)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/min)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/min)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/min)all year001
pHminimum≥ 6 SUall year002
pHminimum≥ 6 SUall year002
pHmaximum≤ 9 SUall year002
pHmaximum≤ 9 SUall year002
Solids, total suspendedmonthly average≤ 40 mg/Lall year002
Solids, total suspendedmonthly average≤ 40 mg/Lall year002
Solids, total suspendeddaily maximum≤ 40 mg/Lall year002
Solids, total suspendeddaily maximum≤ 40 mg/Lall year002
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/min)all year002
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/min)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/min)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/min)all year002
pHminimum≥ 6 SUall year003
pHminimum≥ 6 SUall year003
pHmaximum≤ 9 SUall year003
pHmaximum≤ 9 SUall year003
Solids, total suspendedmonthly average≤ 40 mg/Lall year003
Solids, total suspendedmonthly average≤ 40 mg/Lall year003
Solids, total suspendeddaily maximum≤ 40 mg/Lall year003
Solids, total suspendeddaily maximum≤ 40 mg/Lall year003
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/min)all year003
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/min)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/min)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/min)all year003
pHminimum≥ 6 SUall year004
pHminimum≥ 6 SUall year004
pHmaximum≤ 9 SUall year004
pHmaximum≤ 9 SUall year004
Solids, total suspendedmonthly average≤ 40 mg/Lall year004
Solids, total suspendedmonthly average≤ 40 mg/Lall year004
Solids, total suspendeddaily maximum≤ 40 mg/Lall year004
Solids, total suspendeddaily maximum≤ 40 mg/Lall year004
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/min)all year004
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/min)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/min)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/min)all year004
pHminimum≥ 6 SUall year005
pHminimum≥ 6 SUall year005
pHmaximum≤ 9 SUall year005
pHmaximum≤ 9 SUall year005
Solids, total suspendedmonthly average≤ 40 mg/Lall year005
Solids, total suspendedmonthly average≤ 40 mg/Lall year005
Solids, total suspendeddaily maximum≤ 40 mg/Lall year005
Solids, total suspendeddaily maximum≤ 40 mg/Lall year005
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/min)all year005
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/min)all year005
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/min)all year005
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/min)all year005
pHdaily minimum≥ 6 SUall year006
pHdaily minimum≥ 6 SUall year006
pHdaily maximum≤ 9 SUall year006
pHdaily maximum≤ 9 SUall year006
Solids, total suspendedmonthly average≤ 40 mg/Lall year006
Solids, total suspendedmonthly average≤ 40 mg/Lall year006
Solids, total suspendeddaily maximum≤ 40 mg/Lall year006
Solids, total suspendeddaily maximum≤ 40 mg/Lall year006
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/min)all year006
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/min)all year006
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/min)all year006
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/min)all year006
pHminimum≥ 6 SU (alert, not enforceable)all yearSW01
pHmaximum≤ 9 SU (alert, not enforceable)all yearSW01
Solids, total suspendedmaximum≤ 100 mg/L (alert, not enforceable)all yearSW01
Oil and grease, hexane extr methodmaximum≤ 15 mg/L (alert, not enforceable)all yearSW01
Flow, in conduit or thru treatment plantminimumreport only (gal/min) (alert, not enforceable)all yearSW01
Flow, in conduit or thru treatment plantmaximumreport only (gal/min) (alert, not enforceable)all yearSW01
pHminimum≥ 6 SU (alert, not enforceable)all yearSW02
pHmaximum≤ 9 SU (alert, not enforceable)all yearSW02
Solids, total suspendedmaximum≤ 100 mg/L (alert, not enforceable)all yearSW02
Oil and grease, hexane extr methodmaximum≤ 15 mg/L (alert, not enforceable)all yearSW02
Flow, in conduit or thru treatment plantminimumreport only (gal/min) (alert, not enforceable)all yearSW02
Flow, in conduit or thru treatment plantmaximumreport only (gal/min) (alert, not enforceable)all yearSW02
pHminimum≥ 6 SU (alert, not enforceable)all yearSW03
pHmaximum≤ 9 SU (alert, not enforceable)all yearSW03
Solids, total suspendedmaximum≤ 100 mg/L (alert, not enforceable)all yearSW03
Oil and grease, hexane extr methodmaximum≤ 15 mg/L (alert, not enforceable)all yearSW03
Flow, in conduit or thru treatment plantminimumreport only (gal/min) (alert, not enforceable)all yearSW03
Flow, in conduit or thru treatment plantmaximumreport only (gal/min) (alert, not enforceable)all yearSW03
pHminimum≥ 6 SU (alert, not enforceable)all yearSW04
pHmaximum≤ 9 SU (alert, not enforceable)all yearSW04
Solids, total suspendedmaximum≤ 100 mg/L (alert, not enforceable)all yearSW04
Oil and grease, hexane extr methodmaximum≤ 15 mg/L (alert, not enforceable)all yearSW04
Flow, in conduit or thru treatment plantminimumreport only (gal/min) (alert, not enforceable)all yearSW04
Flow, in conduit or thru treatment plantmaximumreport only (gal/min) (alert, not enforceable)all yearSW04
pHminimum≥ 6 SU (alert, not enforceable)all yearSW05
pHmaximum≤ 9 SU (alert, not enforceable)all yearSW05
Solids, total suspendedmaximum≤ 100 mg/L (alert, not enforceable)all yearSW05
Oil and grease, hexane extr methodmaximum≤ 15 mg/L (alert, not enforceable)all yearSW05
Flow, in conduit or thru treatment plantminimumreport only (gal/min) (alert, not enforceable)all yearSW05
Flow, in conduit or thru treatment plantmaximumreport only (gal/min) (alert, not enforceable)all yearSW05

How strict are these limits?

Cited limits by parameter: Tennessee's rules and the federal ones.

Same industry: the 353 Mining and Quarrying of Nonmetallic Minerals permits in Tennessee.

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On EPA ECHO: Facility report · DMR history

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