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Crushed And Broken Stone, Cranston, Rhode Island. NPDES permit RI0023761 expired Sep 30, 2026; its limits still apply. Last 12 months: over a limit once (last March 2026), 2 of 8 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| March 2026 | Iron, total [as Fe], monthly average | .891 mg/L | ≤ .8 mg/L | 11% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Sulfate [as S] | monthly average | report only (mg/L) | all year | 001 |
| pH | minimum | ≥ 6.5 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 25 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 001 |
| Oil & Grease | monthly average | report only (mg/L) | all year | 001 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 001 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 001 |
| Iron, total [as Fe] | monthly average | ≤ .8 mg/L | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Perchlorate [ClO4] | monthly average | report only (mg/L) | all year | 001 |
| Perchlorate [ClO4] | daily maximum | report only (mg/L) | all year | 001 |
| Sulfate [as S] | monthly average | report only (mg/L) | all year | 002 |
| pH | minimum | ≥ 6.5 SU | all year | 002 |
| pH | maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | monthly average | ≤ 15 mg/L | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 23 mg/L | all year | 002 |
| Oil & Grease | monthly average | ≤ 10 mg/L | all year | 002 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 002 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 002 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 002 |
| Nitrite + Nitrate total [as N] | daily maximum | 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 |
| Iron, total [as Fe] | monthly average | ≤ .8 mg/L | all year | 002 |
| Lead, total [as Pb] | monthly average | ≤ 1.55 ug/L | all year | 002 |
| Lead, total [as Pb] | daily maximum | ≤ 39.9 ug/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 | daily maximum | report only (MGD) | all year | 002 |
| Perchlorate [ClO4] | monthly average | report only (mg/L) | all year | 002 |
| Perchlorate [ClO4] | daily maximum | report only (mg/L) | all year | 002 |
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/RI0023761 · MCP: https://passage-data.com/mcp