Clean Water Act
FOUR CORNERS MATERIALS
Quick Summary
- •Assessed $0 in total penalties since records began.
- Address
-
6699 CR 521
BAYFIELD, CO 81122
View on map ↗ - County
- LA PLATA County
- Industry
- Mining, Quarrying, and Oil and Gas Extraction
- NAICS (North American Industry Classification)
- 212321
- Total Penalties
- $0
- Registry ID
- 110063902610
Discharge Limit Exceedances
Instances where this facility's reported discharge monitoring results exceeded its permitted limits under the Clean Water Act. Exceedance percentage shows how far over the permit limit the discharge was.
| Pollutant | Violation | Reported | Limit | Exceedance | Period | Status |
|---|---|---|---|---|---|---|
| Solids, total suspended | DMR, Limited - Numeric Violation | 59.30 mg/L | 30.00 | +98% | Jul 2021 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 59.30 mg/L | 45.00 | +32% | Jul 2021 | Open |
| Aluminum, total recoverable | DMR, Limited - Numeric Violation | 0.85 mg/L | 0.74 | +15% | Jul 2021 | Open |
| E. coli | DMR, Limited - Numeric Violation | 218.70 MPN/100mL | 200.00 | +9% | Aug 2020 | Open |
| Aluminum, total recoverable | DMR, Limited - Numeric Violation | 0.10 mg/L | 0.09 | +13% | Dec 2019 | Resolved |
| Aluminum, total recoverable | DMR, Limited - Numeric Violation | 0.11 mg/L | 0.09 | +26% | Nov 2019 | Resolved |
| Aluminum, total recoverable | DMR, Limited - Numeric Violation | 0.27 mg/L | 0.09 | +209% | Oct 2019 | Resolved |
| Aluminum, total recoverable | DMR, Limited - Numeric Violation | 0.46 mg/L | 0.09 | +428% | Sep 2019 | Resolved |
| Aluminum, total recoverable | DMR, Limited - Numeric Violation | 0.73 mg/L | 0.09 | +744% | Aug 2019 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 34.30 mg/L | 30.00 | +14% | Aug 2019 | Open |
| Aluminum, total recoverable | DMR, Limited - Overdue | 0.25 mg/L | 0.09 | +190% | Jul 2019 | Resolved |
| Aluminum, total recoverable | DMR, Limited - Numeric Violation | 0.25 mg/L | 0.09 | +190% | Jul 2019 | Resolved |
Enforcement Actions
Formal enforcement cases brought by the EPA or state agencies, including administrative orders and civil penalties assessed. Penalty amounts reflect what was formally assessed, not necessarily what was collected.
CWA 309A AO For Compliance
Clean Water Act
· Case 08-2005-N004 · Aug 5, 2005
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