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Crushed And Broken Granite, Little Rock, Arkansas. NPDES permit AR0046710 expired Nov 30, 2025; its limits still apply. Last 12 months: over a limit 8 times (last April 2026), 88 required values missing, 20 of 22 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| January 2026 | 002 | Solids, total suspended, daily maximum | 41.5 mg/L | ≤ 30 mg/L | 38% |
| January 2026 | 002 | Solids, total suspended, monthly average | 28.5 mg/L | ≤ 20 mg/L | 43% |
| March 2026 | 001 | Solids, total suspended, daily maximum | 35.5 mg/L | ≤ 30 mg/L | 18% |
| March 2026 | 001 | Solids, total suspended, daily maximum | 35.5 mg/L | ≤ 30 mg/L | 18% |
| March 2026 | 001 | Solids, total suspended, monthly average | 24 mg/L | ≤ 20 mg/L | 20% |
| March 2026 | 001 | Solids, total suspended, monthly average | 24 mg/L | ≤ 20 mg/L | 20% |
| April 2026 | 002 | Oxygen demand, chem. [low level] [COD], daily maximum | 135 mg/L | ≤ 75 mg/L | 80% |
| April 2026 | 002 | Solids, total suspended, monthly average | 22.75 mg/L | ≤ 20 mg/L | 14% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 2 mg/L | May–Oct | 001 |
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 5 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 2 mg/L | May–Oct | 001 |
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 5 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Oxygen demand, chem. [low level] [COD] | monthly average | ≤ 50 mg/L | all year | 001 |
| Oxygen demand, chem. [low level] [COD] | monthly average | ≤ 50 mg/L | all year | 001 |
| Oxygen demand, chem. [low level] [COD] | daily maximum | ≤ 75 mg/L | all year | 001 |
| Oxygen demand, chem. [low level] [COD] | daily maximum | ≤ 75 mg/L | all year | 001 |
| pH | minimum | ≥ 6 SU | all year | 001 |
| pH | minimum | ≥ 6 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 001 |
| Oil & Grease | monthly average | ≤ 10 mg/L | all year | 001 |
| Oil & Grease | monthly average | ≤ 10 mg/L | all year | 001 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 001 |
| Oil & Grease | daily maximum | ≤ 15 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 |
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 2 mg/L | May–Oct | 002 |
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 5 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 002 |
| Oxygen demand, chem. [low level] [COD] | monthly average | ≤ 50 mg/L | all year | 002 |
| Oxygen demand, chem. [low level] [COD] | daily maximum | ≤ 75 mg/L | all year | 002 |
| pH | minimum | ≥ 6 SU | all year | 002 |
| pH | maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 30 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 |
| 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 |
Cited limits by parameter: Arkansas's rules and the federal ones.
Same industry: the 30 Mining and Quarrying of Nonmetallic Minerals permits in Arkansas.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/AR0046710 · MCP: https://passage-data.com/mcp