Non-Compliance
Clean Water Act
SIMI VALLEY WATER QUALITY CONTROL PLANT
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $195,000 in total penalties since records began.
- Address
-
600 W LOS ANGELES AVE
SIMI VALLEY, CA 93065
View on map ↗ - County
- VENTURA County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 22132
- Inspections
- 5 · last Feb 28, 2025
- Total Penalties
- $195,000 · last May 29, 2025
- Registry ID
- 110039774116
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 | Schedule Event unachieved and not reported | Apr 30, 2009 | Jul 31, 2009 | Resolved |
| cwa | Schedule Event reported late | Apr 30, 2009 | — | Open |
| cwa | Schedule Event achieved late but reported | Apr 30, 2009 | — | Open |
| cwa | Schedule Event unachieved but reported | Apr 30, 2009 | Jul 31, 2009 | Resolved |
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 |
|---|---|---|---|---|---|---|
| Turbidity, time above limit | DMR, Limited - Numeric Violation | 0.05 d | 0.05 | +7% | Aug 2025 | Open |
| Sulfate, total [as SO4] | DMR, Limited - Numeric Violation | 255.00 mg/L | 250.00 | +2% | Jun 2025 | Resolved |
| Sulfate, total [as SO4] | DMR, Limited - Numeric Violation | 274.00 mg/L | 250.00 | +10% | May 2025 | Resolved |
| Solids, total dissolved | DMR, Limited - Numeric Violation | 871.00 mg/L | 850.00 | +2% | May 2025 | Open |
| Sulfate, total [as SO4] | DMR, Limited - Numeric Violation | 280.00 mg/L | 250.00 | +12% | Apr 2025 | Resolved |
| Solids, total dissolved | DMR, Limited - Numeric Violation | 856.00 mg/L | 850.00 | +1% | Mar 2025 | Open |
| Sulfate, total [as SO4] | DMR, Limited - Numeric Violation | 272.00 mg/L | 250.00 | +9% | Mar 2025 | Resolved |
| Solids, total dissolved | DMR, Limited - Numeric Violation | 872.00 mg/L | 850.00 | +3% | Feb 2025 | Open |
| Sulfate, total [as SO4] | DMR, Limited - Numeric Violation | 261.00 mg/L | 250.00 | +4% | Jul 2024 | Resolved |
| Sulfate, total [as SO4] | DMR, Limited - Numeric Violation | 284.00 mg/L | 250.00 | +14% | Jun 2024 | Resolved |
| Sulfate, total [as SO4] | DMR, Limited - Numeric Violation | 306.50 mg/L | 250.00 | +23% | May 2024 | Resolved |
| Solids, total dissolved | DMR, Limited - Numeric Violation | 866.20 mg/L | 850.00 | +2% | May 2024 | Resolved |
| Solids, total dissolved | DMR, Limited - Numeric Violation | 935.00 mg/L | 850.00 | +10% | Apr 2024 | Resolved |
| Sulfate, total [as SO4] | DMR, Limited - Numeric Violation | 349.00 mg/L | 250.00 | +40% | Apr 2024 | Resolved |
| Solids, total dissolved | DMR, Limited - Numeric Violation | 960.00 mg/L | 850.00 | +13% | Mar 2024 | Resolved |
| Sulfate, total [as SO4] | DMR, Limited - Numeric Violation | 367.00 mg/L | 250.00 | +47% | Mar 2024 | Resolved |
| Solids, total dissolved | DMR, Limited - Numeric Violation | 1,084.00 mg/L | 850.00 | +28% | Feb 2024 | Resolved |
| Sulfate, total [as SO4] | DMR, Limited - Numeric Violation | 412.00 mg/L | 250.00 | +65% | Feb 2024 | Resolved |
| Sulfate, total [as SO4] | DMR, Limited - Numeric Violation | 12,323.83 kg/d | 11,831.24 | +4% | Feb 2024 | Resolved |
| Sulfate, total [as SO4] | DMR, Limited - Numeric Violation | 252.00 mg/L | 250.00 | +1% | Jan 2024 | Resolved |
| Sulfate, total [as SO4] | DMR, Limited - Numeric Violation | 262.00 mg/L | 250.00 | +5% | Oct 2023 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 3.60 mg/L | 3.30 | +9% | Oct 2023 | Open |
| Sulfate, total [as SO4] | DMR, Limited - Numeric Violation | 269.00 mg/L | 250.00 | +8% | Sep 2023 | Open |
| Solids, total dissolved | DMR, Limited - Numeric Violation | 864.00 mg/L | 850.00 | +2% | Sep 2023 | Open |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +7% | Apr 2023 | Open |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +2% | Mar 2023 | Open |
| Sulfate, total [as SO4] | DMR, Limited - Numeric Violation | 13,096.08 kg/d | 11,831.24 | +11% | Mar 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 23.40 mg/L | 3.30 | +609% | Dec 2022 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 3.20 mg/L | 2.40 | +33% | Dec 2022 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 39.00 mg/L | 2.40 | +1,525% | Nov 2022 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 42.60 mg/L | 3.30 | +1,191% | Nov 2022 | Open |
| Coliform, total general | DMR, Limited - Numeric Violation | 42.50 MPN/100mL | 23.00 | +85% | Nov 2022 | Open |
| Coliform, total general | DMR, Limited - Numeric Violation | 920.00 MPN/100mL | 240.00 | +283% | Nov 2022 | Open |
| Coliform, total general | DMR, Limited - Numeric Violation | 2.60 MPN/100mL | 2.20 | +18% | Nov 2019 | Open |
| Coliform, total general | DMR, Limited - Numeric Violation | 3.70 MPN/100mL | 2.20 | +68% | Aug 2019 | Open |
| Dieldrin | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +1,186% | Jun 2019 | Open |
| Dieldrin | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +1,793% | Jun 2019 | Open |
| 4,4'-DDD | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +567% | Jun 2019 | Open |
| 4,4'-DDD | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +424% | Jun 2019 | Open |
| Coliform, total general | DMR, Limited - Numeric Violation | 2.80 MPN/100mL | 2.20 | +27% | Jun 2019 | Open |
| Sulfate, total [as SO4] | DMR, Limited - Numeric Violation | 279.00 mg/L | 250.00 | +12% | Mar 2019 | Open |
| Sulfate, total [as SO4] | DMR, Limited - Numeric Violation | 300.00 mg/L | 250.00 | +20% | Feb 2019 | Open |
| %Effect Static 4 Day Chronic Raphidocelis subcapitata | DMR, Limited - Numeric Violation | 61.92 % | 50.00 | +24% | Feb 2018 | Open |
| %Effect Static 4 Day Chronic Raphidocelis subcapitata | DMR, Limited - Numeric Violation | 59.74 % | 50.00 | +19% | Jan 2018 | Open |
| %Effect Static 4 Day Chronic Raphidocelis subcapitata | DMR, Limited - Numeric Violation | 50.40 % | 50.00 | +1% | Dec 2017 | Open |
| Sulfate, total [as SO4] | DMR, Limited - Numeric Violation | 276.00 mg/L | 250.00 | +10% | Mar 2017 | Open |
| Solids, total dissolved | DMR, Limited - Numeric Violation | 864.00 mg/L | 850.00 | +2% | Mar 2017 | Open |
| Sulfate, total [as SO4] | DMR, Limited - Numeric Violation | 340.00 mg/L | 250.00 | +36% | Feb 2017 | Open |
| Solids, total dissolved | DMR, Limited - Numeric Violation | 972.00 mg/L | 850.00 | +14% | Feb 2017 | Open |
| Mercury, total recoverable | DMR, Limited - Numeric Violation | 0.00 kg/d | 0.00 | +43% | May 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-N00002192
State CWA Penalty AO
Clean Water Act
· Case CA-CFEA457120 · May 29, 2025
$195,000
State CWA Penalty AO
Clean Water Act
· Case CA-CFEA440101 · Oct 12, 2020
$15,000
State CWA Penalty AO
Clean Water Act
· Case CA-CFEA417132 · Jan 22, 2018
$3,000
State CWA Penalty AO
Clean Water Act
· Case CA-2015-1069 · Oct 22, 2015
$12,000
State CWA Penalty AO
Clean Water Act
· Case CA-2014-1038 · May 30, 2014
$12,000
State CWA Non Penalty AO
Clean Water Act
· Case CA-2014-1055 · May 8, 2014
State CWA Penalty AO
Clean Water Act
· Case CA-2011-1080 · Jul 5, 2011
$60,000
State CWA Penalty AO
Clean Water Act
· Case CA-2010-1063 · Jun 30, 2010
State CWA Non Penalty AO
Clean Water Act
· Case CA-N00003977 · Aug 9, 2007
State CWA Non Penalty AO
Clean Water Act
· Case CA-N00002331 · Mar 30, 2005
State CWA Non Penalty AO
Clean Water Act
· Case CA-N00002323 · Jan 20, 2005
State CWA Non Penalty AO
Clean Water Act
· Case CA-N00003448 · Apr 29, 2004
State CWA Non Penalty AO
Clean Water Act
· Case CA-N00004054 · Jun 5, 2003
State CWA Non Penalty AO
Clean Water Act
· Case CA-N00002383 · Apr 27, 1987
State CWA Non Penalty AO
Clean Water Act
· Case CA-N00002382 · Aug 26, 1985
State CWA Non Penalty AO
Clean Water Act
· Case CA-N00002381 · Oct 22, 1984
State CWA Non Penalty AO
Clean Water Act
· Case CA-N00002379 · Jun 27, 1983
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