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Carmeuse Lime, Inc - Maple Grove Operation

Crushed And Broken Limestone, Bettsville, Ohio. NPDES permit OH0000477, in force until Jul 31, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 002 form A monthly (8 values), outfall 003 form A monthly (8 values), outfall 603 form A monthly (2 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 8 required values missing, 0 of 36 reports late

Limits in force (42)

ParameterStatisticLimitMonthsOutfall
pHdaily minimum≥ 6.5 SUall year002
pHdaily maximum≤ 9 SUall year002
Solids, total suspendedmonthly average≤ 30 mg/Lall year002
Solids, total suspendeddaily maximum≤ 45 mg/Lall year002
Solids, total suspendedmonthly average≤ 66 kg/dall year002
Solids, total suspendeddaily maximum≤ 99 kg/dall year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
pHdaily minimum≥ 6.5 SUall year003
pHdaily maximum≤ 9 SUall year003
Solids, total suspendedmonthly average≤ 30 mg/Lall year003
Solids, total suspendeddaily maximum≤ 45 mg/Lall year003
Solids, total suspendedmonthly average≤ 56.9 kg/dall year003
Solids, total suspendeddaily maximum≤ 85.3 kg/dall year003
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
Flow ratemonthly averagereport only (gal/d)Jun, Aug603
Flow ratedaily maximumreport only (gal/d)Jun, Aug603
Oxygen, dissolved [DO]daily minimum≥ 6 mg/LMar, Jun, Aug, Dec603
pHdaily minimum≥ 6.5 SUMar, Jun, Aug, Dec603
pHdaily maximum≤ 9 SUMar, Jun, Aug, Dec603
Solids, total suspendedmonthly average≤ 12 mg/LMar, Jun, Aug, Dec603
Solids, total suspendedweekly maximum≤ 18 mg/LMar, Jun, Aug, Dec603
Solids, total suspendedmonthly average≤ .114 kg/dMar, Jun, Aug, Dec603
Solids, total suspendedweekly maximum≤ .171 kg/dMar, Jun, Aug, Dec603
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/LJun, Aug603
Nitrogen, ammonia total [as N]monthly average≤ 3 mg/LMar, Dec603
Nitrogen, ammonia total [as N]weekly maximum≤ 1.5 mg/LJun, Aug603
Nitrogen, ammonia total [as N]weekly maximum≤ 4.5 mg/LMar, Dec603
Nitrogen, ammonia total [as N]monthly average≤ .0095 kg/dJun, Aug603
Nitrogen, ammonia total [as N]monthly average≤ .0284 kg/dMar, Dec603
Nitrogen, ammonia total [as N]weekly maximum≤ .0142 kg/dJun, Aug603
Nitrogen, ammonia total [as N]weekly maximum≤ .0426 kg/dMar, Dec603
Turbidity [severity]monthly averagereport only (severity)all year603
Turbidity [severity]daily maximumreport only (severity)all year603
E. coli, MTEC-MFmonthly geometric mean≤ 126 MPN/100mLJun, Aug603
E. coli, MTEC-MFweekly geometric mean≤ 284 MPN/100mLJun, Aug603
Chlorine, total residualdaily maximum≤ .019 mg/LJun, Aug603
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/LMar, Jun, Aug, Dec603
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 15 mg/LMar, Jun, Aug, Dec603
BOD, carbonaceous [5 day, 20 C]monthly average≤ .0947 kg/dMar, Jun, Aug, Dec603
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ .142 kg/dMar, Jun, Aug, Dec603

How strict are these limits?

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

Same industry: the 131 Mining and Quarrying of Nonmetallic Minerals permits in Ohio.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OH0000477 · MCP: https://passage-data.com/mcp