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Crushed And Broken Limestone, Montevallo, Alabama. NPDES permit AL0024422, in force until May 31, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | daily minimum | ≥ 6 SU | all year | 002 |
| pH | daily minimum | ≥ 6 SU | all year | 002 |
| pH | daily maximum | ≤ 8.5 SU | all year | 002 |
| pH | daily maximum | ≤ 8.5 SU | all year | 002 |
| Solids, total suspended | monthly average | ≤ 25 mg/L | all year | 002 |
| Solids, total suspended | monthly average | ≤ 25 mg/L | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 002 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Apr, Jun, Aug, Oct | 002 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Apr, Jun, Aug, Oct | 002 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | Apr, Jun, Aug, Oct | 002 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | Apr, Jun, Aug, Oct | 002 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Apr, Jun, Aug, Oct | 002 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Apr, Jun, Aug, Oct | 002 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Apr, Jun, Aug, Oct | 002 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Apr, Jun, Aug, Oct | 002 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| pH | daily minimum | ≥ 6 SU | all year | 003 |
| pH | daily minimum | ≥ 6 SU | all year | 003 |
| pH | daily maximum | ≤ 8.5 SU | all year | 003 |
| pH | daily maximum | ≤ 8.5 SU | all year | 003 |
| Solids, total suspended | monthly average | ≤ 25 mg/L | all year | 003 |
| Solids, total suspended | monthly average | ≤ 25 mg/L | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 003 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Apr, Jun, Aug, Oct | 003 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Apr, Jun, Aug, Oct | 003 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | Apr, Jun, Aug, Oct | 003 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | Apr, Jun, Aug, Oct | 003 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Apr, Jun, Aug, Oct | 003 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Apr, Jun, Aug, Oct | 003 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Apr, Jun, Aug, Oct | 003 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Apr, Jun, Aug, Oct | 003 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 003 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 003 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 003 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| pH | daily minimum | ≥ 6 SU | all year | 004 |
| pH | daily minimum | ≥ 6 SU | all year | 004 |
| pH | daily maximum | ≤ 8.5 SU | all year | 004 |
| pH | daily maximum | ≤ 8.5 SU | all year | 004 |
| Solids, total suspended | monthly average | ≤ 25 mg/L | all year | 004 |
| Solids, total suspended | monthly average | ≤ 25 mg/L | all year | 004 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 004 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 004 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Apr, Jun, Aug, Oct | 004 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Apr, Jun, Aug, Oct | 004 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | Apr, Jun, Aug, Oct | 004 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | Apr, Jun, Aug, Oct | 004 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Apr, Jun, Aug, Oct | 004 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Apr, Jun, Aug, Oct | 004 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Apr, Jun, Aug, Oct | 004 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Apr, Jun, Aug, Oct | 004 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 004 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 004 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 004 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 004 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 004 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
| pH | daily minimum | ≥ 6 SU | all year | 005 |
| pH | daily minimum | ≥ 6 SU | all year | 005 |
| pH | daily maximum | ≤ 8.5 SU | all year | 005 |
| pH | daily maximum | ≤ 8.5 SU | all year | 005 |
| Solids, total suspended | monthly average | ≤ 25 mg/L | all year | 005 |
| Solids, total suspended | monthly average | ≤ 25 mg/L | all year | 005 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 005 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 005 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Apr, Jun, Aug, Oct | 005 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Apr, Jun, Aug, Oct | 005 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | Apr, Jun, Aug, Oct | 005 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | Apr, Jun, Aug, Oct | 005 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Apr, Jun, Aug, Oct | 005 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Apr, Jun, Aug, Oct | 005 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Apr, Jun, Aug, Oct | 005 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Apr, Jun, Aug, Oct | 005 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 005 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 005 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 005 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 005 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 005 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 005 |
Cited limits by parameter: Alabama's rules and the federal ones.
Same industry: the 206 Mining and Quarrying of Nonmetallic Minerals permits in Alabama.
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On EPA ECHO: Facility report · DMR history
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