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Federal facility (National Security), Stoneham, Colorado. NPDES permit CO0034789, in force until Mar 31, 2027. Last 12 months: over a limit 2 times (last December 2025). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit |
|---|---|---|---|---|
| December 2025 | 002 | pH, maximum | ≤ 9.13 SU | ≤ 9 SU |
| December 2025 | 004 | pH, maximum | ≤ 9.15 SU | ≤ 9 SU |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | minimum | ≥ 6.5 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | all year | 001 |
| Oil & Grease | daily maximum | ≤ 10 mg/L | all year | 001 |
| DMR Attachment Submitted | value | < 1 Y=0;N=1 | all year | 001 |
| Flow, total | total | report only (gal/yr) | all year | 001 |
| Oil and grease visual | instantaneous maximum | ≤ 0 N=0;Y=1 | all year | 001 |
| pH | minimum | ≥ 6.5 SU | all year | 002 |
| pH | maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 002 |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | all year | 002 |
| Oil & Grease | daily maximum | ≤ 10 mg/L | all year | 002 |
| DMR Attachment Submitted | value | < 1 Y=0;N=1 | all year | 002 |
| Flow, total | total | report only (gal/yr) | all year | 002 |
| Oil and grease visual | instantaneous maximum | ≤ 0 N=0;Y=1 | all year | 002 |
| pH | minimum | ≥ 6.5 SU | all year | 003 |
| pH | maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 003 |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | all year | 003 |
| Oil & Grease | daily maximum | ≤ 10 mg/L | all year | 003 |
| DMR Attachment Submitted | value | < 1 Y=0;N=1 | all year | 003 |
| Flow, total | total | report only (gal/yr) | all year | 003 |
| Oil and grease visual | instantaneous maximum | ≤ 0 N=0;Y=1 | all year | 003 |
| pH | minimum | ≥ 6.5 SU | all year | 004 |
| pH | maximum | ≤ 9 SU | all year | 004 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 004 |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | all year | 004 |
| Oil & Grease | daily maximum | ≤ 10 mg/L | all year | 004 |
| DMR Attachment Submitted | value | < 1 Y=0;N=1 | all year | 004 |
| Flow, total | total | report only (gal/yr) | all year | 004 |
| Oil and grease visual | instantaneous maximum | ≤ 0 N=0;Y=1 | all year | 004 |
| pH | minimum | ≥ 6.5 SU | all year | 005 |
| pH | maximum | ≤ 9 SU | all year | 005 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 005 |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | all year | 005 |
| Oil & Grease | daily maximum | ≤ 10 mg/L | all year | 005 |
| DMR Attachment Submitted | value | < 1 Y=0;N=1 | all year | 005 |
| Flow, total | total | report only (gal/yr) | all year | 005 |
| Oil and grease visual | instantaneous maximum | ≤ 0 N=0;Y=1 | all year | 005 |
| pH | minimum | ≥ 6.5 SU | all year | 006 |
| pH | maximum | ≤ 9 SU | all year | 006 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 006 |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | all year | 006 |
| Oil & Grease | daily maximum | ≤ 10 mg/L | all year | 006 |
| DMR Attachment Submitted | value | < 1 Y=0;N=1 | all year | 006 |
| Flow, total | total | report only (gal/yr) | all year | 006 |
| Oil and grease visual | instantaneous maximum | ≤ 0 N=0;Y=1 | all year | 006 |
| pH | minimum | ≥ 6.5 SU | all year | 007 |
| pH | maximum | ≤ 9 SU | all year | 007 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 007 |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | all year | 007 |
| Oil & Grease | daily maximum | ≤ 10 mg/L | all year | 007 |
| DMR Attachment Submitted | value | < 1 Y=0;N=1 | all year | 007 |
| Flow, total | total | report only (gal/yr) | all year | 007 |
| Oil and grease visual | instantaneous maximum | ≤ 0 N=0;Y=1 | all year | 007 |
| pH | minimum | ≥ 6.5 SU | all year | 008 |
| pH | maximum | ≤ 9 SU | all year | 008 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 008 |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | all year | 008 |
| Oil & Grease | daily maximum | ≤ 10 mg/L | all year | 008 |
| DMR Attachment Submitted | value | < 1 Y=0;N=1 | all year | 008 |
| Flow, total | total | report only (gal/yr) | all year | 008 |
| Oil and grease visual | instantaneous maximum | ≤ 0 N=0;Y=1 | all year | 008 |
| pH | minimum | ≥ 6.5 SU | all year | 009 |
| pH | maximum | ≤ 9 SU | all year | 009 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 009 |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | all year | 009 |
| Oil & Grease | daily maximum | ≤ 10 mg/L | all year | 009 |
| DMR Attachment Submitted | value | < 1 Y=0;N=1 | all year | 009 |
| Flow, total | total | report only (gal/yr) | all year | 009 |
| Oil and grease visual | instantaneous maximum | ≤ 0 N=0;Y=1 | all year | 009 |
Cited limits by parameter: Colorado's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/CO0034789 · MCP: https://passage-data.com/mcp