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Minerals, Ground Or Treated, Bossier City, Louisiana. NPDES permit LA0119300, in force until Mar 31, 2028. Last 12 months: over a limit 3 times (last February 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit |
|---|---|---|---|
| October 2025 | pH, instantaneous maximum | 9.1 SU | ≤ 9 SU |
| January 2026 | pH, instantaneous maximum | 9.4 SU | ≤ 9 SU |
| February 2026 | pH, instantaneous maximum | 9.1 SU | ≤ 9 SU |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| pH | instantaneous minimum | ≥ 6 SU | all year |
| pH | instantaneous maximum | ≤ 9 SU | all year |
| Solids, total suspended | daily maximum | report only (mg/L) (alert, not enforceable) | all year |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year |
| Copper, total [as Cu] | daily maximum | report only (mg/L) (alert, not enforceable) | all year |
| Lead, total [as Pb] | daily maximum | report only (mg/L) (alert, not enforceable) | all year |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) (alert, not enforceable) | all year |
| Aluminum, total recoverable | daily maximum | report only (mg/L) (alert, not enforceable) | all year |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year |
Cited limits by parameter: Louisiana's rules and the federal ones.
Same industry: the 7 Stone, Clay, Glass and Concrete Products permits in Louisiana.
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On EPA ECHO: Facility report · DMR history
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