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Miscellaneous Nonmetallic Minerals, East Shoals, Indiana. NPDES permit IN0004901, in force until Nov 30, 2028. Last 12 months: over a limit once (last September 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| September 2026 | Solids, total suspended, daily maximum | 71 mg/L | ≤ 30 mg/L | 137% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| pH | daily minimum | ≥ 6 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | Mar, Jun, Sep, Dec |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | Mar, Jun, Sep, Dec |
| Oil and grease, hexane extr method | monthly average | ≤ 10 mg/L | Mar, Jun, Sep, Dec |
| Oil and grease, hexane extr method | monthly average | ≤ 10 mg/L | Mar, Jun, Sep, Dec |
| Oil and grease, hexane extr method | daily maximum | ≤ 15 mg/L | Mar, Jun, Sep, Dec |
| Oil and grease, hexane extr method | daily maximum | ≤ 15 mg/L | Mar, Jun, Sep, Dec |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec |
| Chloride [as Cl] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec |
| Chloride [as Cl] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec |
| Chloride [as Cl] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec |
| Chloride [as Cl] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec |
| 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 |
| Flow, total | monthly total | report only (Mgal/mo) | all year |
Cited limits by parameter: Indiana's rules and the federal ones.
Same industry: the 32 Mining and Quarrying of Nonmetallic Minerals permits in Indiana.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/IN0004901 · MCP: https://passage-data.com/mcp