Non-Compliance
Clean Water Act
WILLIAMS WWTP
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $6,000 in total penalties since records began.
- Address
-
501 N COLUSA CUT OPF ROAD
WILLIAMS, CA 95987
View on map ↗ - County
- COLUSA County
- Inspections
- 1 · last Mar 13, 2025
- Total Penalties
- $6,000 · last Jan 27, 2022
- Registry ID
- 110070670245
Compliance Status (Last 12 Quarters)
Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.
8
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
Compliance Violations
Individual permit violations recorded by the EPA across air, water, and hazardous waste programs. Open violations are unresolved as of the most recent ECHO data update.
| Program | Type | Violation Date | Return to Compliance | Status |
|---|---|---|---|---|
| cwa | Permit Violations - Violation Specified in Comment | Jan 15, 2020 | — | Open |
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 |
|---|---|---|---|---|---|---|
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.58 MGD | 0.50 | +16% | Oct 2025 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.58 MGD | 0.50 | +16% | Sep 2025 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.61 MGD | 0.50 | +22% | Aug 2025 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.61 MGD | 0.50 | +22% | Jul 2025 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.59 MGD | 0.50 | +18% | Jun 2025 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.56 MGD | 0.50 | +12% | May 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 24.00 mg/L | 15.00 | +60% | May 2025 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.54 MGD | 0.50 | +8% | Apr 2025 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.66 MGD | 0.50 | +32% | Mar 2025 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.78 MGD | 0.50 | +56% | Feb 2025 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.73 MGD | 0.50 | +46% | Dec 2024 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.69 MGD | 0.50 | +38% | Nov 2024 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.51 MGD | 0.50 | +2% | Jun 2024 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.56 MGD | 0.50 | +12% | May 2024 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.71 MGD | 0.50 | +42% | Apr 2024 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.90 MGD | 0.50 | +80% | Mar 2024 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 1.05 MGD | 0.50 | +110% | Feb 2024 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 1.20 MGD | 0.50 | +140% | Jan 2024 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.72 MGD | 0.50 | +44% | Dec 2023 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.51 MGD | 0.50 | +2% | Sep 2023 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 37.00 mg/L | 10.00 | +270% | Aug 2023 | Resolved |
| Nitrite + Nitrate total [as N] | DMR, Limited - Numeric Violation | 10.10 mg/L | 10.00 | +99,999% | Aug 2023 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 220.00 mg/L | 15.00 | +1,367% | Aug 2023 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 99.00 mg/L | 15.00 | +560% | Jul 2023 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 82.50 % | 85.00 | +17% | Jul 2023 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 39.00 mg/L | 10.00 | +290% | Jul 2023 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 670.00 mg/L | 15.00 | +4,367% | Jun 2023 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.54 MGD | 0.50 | +8% | Jun 2023 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 403.00 mg/L | 10.00 | +3,930% | Jun 2023 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 400.00 mg/L | 15.00 | +2,567% | May 2023 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 244.00 mg/L | 10.00 | +2,340% | May 2023 | Resolved |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.64 MGD | 0.50 | +28% | May 2023 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 254.00 mg/L | 10.00 | +99,999% | Apr 2023 | Resolved |
| Coliform, total general | DMR, Limited - Numeric Violation | 1.80 MPN/100mL | 2.20 | +99,999% | Apr 2023 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.83 MGD | 0.50 | +66% | Apr 2023 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 520.00 mg/L | 15.00 | +3,367% | Apr 2023 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 73.00 mg/L | 10.00 | +630% | Mar 2023 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 9.80 mg/L | 1.90 | +416% | Mar 2023 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 220.00 mg/L | 15.00 | +99,999% | Mar 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 3.40 mg/L | 0.84 | +305% | Mar 2023 | Resolved |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 1.30 MGD | 0.50 | +160% | Mar 2023 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 47.90 % | 85.00 | +99,999% | Mar 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 7.50 mg/L | 0.84 | +793% | Feb 2023 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 680.00 mg/L | 10.00 | +6,700% | Feb 2023 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 1,200.00 mg/L | 15.00 | +7,900% | Feb 2023 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 277.80 % | 85.00 | +99,999% | Feb 2023 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.69 MGD | 0.50 | +38% | Feb 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 8.30 mg/L | 1.90 | +337% | Feb 2023 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.93 MGD | 0.50 | +86% | Jan 2023 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 48.90 % | 85.00 | +99,999% | Jan 2023 | Open |
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.
State CWA Penalty AO
Clean Water Act
· Case CA-CFEA445586 · Jan 27, 2022
$6,000
State CWA Penalty AO
Clean Water Act
· Case CA-CFEA443868 · Aug 3, 2021
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