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Crushed And Broken Limestone, West Greenwich, Rhode Island. NPDES permit RI0023965, in force until Mar 31, 2027. Last 12 months: over a limit 9 times (last September 2026), 18 required values missing, 4 of 8 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| December 2025 | Solids, total suspended, daily maximum | 66 mg/L | ≤ 45 mg/L | 47% |
| December 2025 | Solids, total suspended, monthly average | 25.6 mg/L | ≤ 25 mg/L | 2% |
| December 2025 | Turbidity, increase over background, daily maximum | 104.8 NTU | ≤ 5 NTU | — |
| December 2025 | Turbidity, increase over background, monthly average | 59 NTU | ≤ 5 NTU | — |
| March 2026 | Solids, total suspended, monthly average | 32.5 mg/L | ≤ 25 mg/L | 30% |
| March 2026 | Turbidity, increase over background, daily maximum | 70 NTU | ≤ 5 NTU | — |
| March 2026 | Turbidity, increase over background, monthly average | 70 NTU | ≤ 5 NTU | — |
| September 2026 | Turbidity, increase over background, daily maximum | 15.6 NTU | ≤ 5 NTU | — |
| September 2026 | Turbidity, increase over background, monthly average | 13.6 NTU | ≤ 5 NTU | — |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Turbidity | monthly average | report only (NTU) | all year |
| Turbidity | daily maximum | report only (NTU) | all year |
| pH | minimum | ≥ 6.5 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 25 mg/L | all year |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | 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 |
| Turbidity, background | monthly average | report only (NTU) | all year |
| Turbidity, background | daily maximum | report only (NTU) | all year |
| Turbidity, increase over background | monthly average | ≤ 5 NTU | all year |
| Turbidity, increase over background | daily maximum | ≤ 5 NTU | all year |
| Perchlorate [ClO4] | monthly average | report only (mg/L) | all year |
| Perchlorate [ClO4] | daily maximum | report only (mg/L) | all year |
Cited limits by parameter: Rhode Island's rules and the federal ones.
Same industry: the 3 Mining and Quarrying of Nonmetallic Minerals permits in Rhode Island.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/RI0023965 · MCP: https://passage-data.com/mcp