Non-Compliance
Clean Water Act
SOUTHERN MARIN WWTP
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $25,500 in total penalties since records began.
- Address
-
450 SYCAMORE AVENUE
MILL VALLEY, CA 94941
View on map ↗ - County
- MARIN County
- Inspections
- 2 · last May 8, 2024
- Total Penalties
- $25,500 · last Mar 25, 2024
- Registry ID
- 110002418848
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
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 |
|---|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 14.00 mg/L | 12.30 | +14% | Oct 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 17.00 mg/L | 12.30 | +38% | Jul 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 16.50 mg/L | 12.30 | +34% | Apr 2023 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 77.00 % | 85.00 | +53% | Mar 2023 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 80.00 % | 85.00 | +33% | Mar 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 22.00 mg/L | 12.30 | +79% | Feb 2023 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 49.00 mg/L | 45.00 | +9% | Feb 2023 | Open |
| Coliform, total general | DMR, Limited - Numeric Violation | 16,000.00 MPN/100mL | 10,000.00 | +60% | Jan 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 20.72 mg/L | 12.30 | +68% | Sep 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 33.00 mg/L | 32.00 | +3% | Aug 2022 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 27.76 mg/L | 12.30 | +126% | Aug 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 21.02 mg/L | 12.30 | +71% | Jul 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 22.67 mg/L | 12.30 | +84% | Jun 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 29.00 mg/L | 12.30 | +136% | May 2022 | Resolved |
| Enterococci | DMR, Limited - Numeric Violation | 67.90 MPN/100mL | 35.00 | +94% | Oct 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 13.00 mg/L | 12.30 | +6% | Sep 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 14.40 mg/L | 12.30 | +17% | Jun 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 22.13 mg/L | 12.30 | +80% | Dec 2020 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 37.00 mg/L | 32.00 | +16% | Dec 2020 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.45 mg/L | 12.30 | +1% | Nov 2020 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 16.79 mg/L | 12.30 | +37% | Sep 2020 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 15.55 mg/L | 12.30 | +26% | Aug 2020 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 13.00 mg/L | 12.30 | +6% | Nov 2019 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 18.88 mg/L | 12.30 | +53% | Jul 2019 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Overdue | 18.88 mg/L | 12.30 | +53% | Jul 2019 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 35.00 mg/L | 32.00 | +9% | Jun 2019 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 24.73 mg/L | 12.30 | +101% | Jun 2019 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 38.00 mg/L | 32.00 | +19% | May 2019 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 26.27 mg/L | 12.30 | +114% | May 2019 | Resolved |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 84.00 % | 85.00 | +7% | Feb 2019 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 22.20 mg/L | 12.30 | +80% | Sep 2018 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 20.10 mg/L | 12.30 | +63% | Aug 2018 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 18.17 mg/L | 12.30 | +48% | Jul 2018 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 47.00 mg/L | 45.00 | +4% | Mar 2018 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 13.00 mg/L | 12.30 | +6% | Jun 2016 | 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-N00001116
State CWA Penalty AO
Clean Water Act
· Case CA-CFEA455251 · Mar 25, 2024
$16,500
State CWA Penalty AO
Clean Water Act
· Case CA-CFEA448316 · Sep 22, 2022
$9,000
State CWA Penalty AO
Clean Water Act
· Case CA-CFEA439589 · Nov 11, 2020
State CWA Penalty AO
Clean Water Act
· Case CA-CFEA435437 · Feb 4, 2020
$24,000
State CWA Penalty AO
Clean Water Act
· Case CA-2009-1094 · Apr 8, 2009
Administrative - Formal
· Case 09-2008-1506 · Apr 10, 2008
State CWA Non Penalty AO
Clean Water Act
· Case CA-N00004198 · Feb 8, 2008
State CWA Non Penalty AO
Clean Water Act
· Case CA-N00003965 · Aug 8, 2007
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