Non-Compliance
Clean Water Act
RCRA
SAN LUIS OBISPO WWTP
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $69,000 in total penalties since records began.
- Address
-
35 PRADO RD
SAN LUIS OBISPO, CA 93401
View on map ↗ - County
- SAN LUIS OBISPO County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 221310
- Inspections
- 3 · last Jun 30, 2025
- Total Penalties
- $69,000 · last Feb 14, 2024
- Registry ID
- 110000736302
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.
12
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
0
Hazardous Waste (RCRA)
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 | Sep 19, 2024 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Sep 13, 2024 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Sep 12, 2024 | — | Open |
| cwa | Schedule Event achieved late but reported | Mar 21, 2020 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Sep 9, 2004 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Sep 1, 2004 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Jul 31, 2004 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Sep 20, 2003 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Oct 31, 2002 | — | 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 |
|---|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 94.00 mg/L | 10.00 | +840% | Sep 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 94.00 mg/L | 30.00 | +213% | Sep 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 94.00 mg/L | 50.00 | +88% | Sep 2025 | Open |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 15.00 mg/L | 10.00 | +50% | Jul 2024 | Resolved |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 14.00 mg/L | 10.00 | +40% | Jun 2024 | Resolved |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 13.80 mg/L | 10.00 | +38% | May 2024 | Resolved |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 15.00 mg/L | 10.00 | +50% | Apr 2024 | Resolved |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 11.00 mg/L | 10.00 | +10% | Mar 2024 | Resolved |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 16.50 mg/L | 10.00 | +65% | Feb 2024 | Resolved |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 15.00 mg/L | 10.00 | +50% | Jan 2024 | Resolved |
| Chlorine, total residual | DMR, Limited - Numeric Violation | 0.16 mg/L | 0.10 | +60% | Jan 2024 | Open |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 12.00 mg/L | 10.00 | +20% | Dec 2023 | Resolved |
| Chlorine, total residual | DMR, Limited - Numeric Violation | 0.11 mg/L | 0.10 | +10% | Jul 2023 | Open |
| Dibromochloromethane | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +425% | Dec 2022 | Open |
| Dichlorobromomethane | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.00 | +3,079% | Dec 2022 | Open |
| Dichlorobromomethane | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.00 | +1,680% | Dec 2022 | Open |
| Dibromochloromethane | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +110% | Dec 2022 | Open |
| Chlorine, total residual | DMR, Limited - Numeric Violation | 0.76 mg/L | 0.10 | +660% | Dec 2022 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 1.80 MPN/100mL | 2.20 | +99,999% | Nov 2022 | Open |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 43.20 mg/L | 42.60 | +1% | Nov 2022 | Resolved |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 47.10 mg/L | 42.60 | +11% | May 2022 | Resolved |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 45.90 mg/L | 42.60 | +8% | Apr 2022 | Resolved |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 46.00 mg/L | 42.60 | +8% | Mar 2022 | Resolved |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 46.10 mg/L | 42.60 | +8% | Feb 2022 | Resolved |
| Dichlorobromomethane | DMR, Limited - Numeric Violation | 0.01 mg/L | 0.00 | +2,293% | Dec 2021 | Open |
| Dibromochloromethane | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +200% | Dec 2021 | Open |
| Dibromochloromethane | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +20% | Dec 2021 | Open |
| Dichlorobromomethane | DMR, Limited - Numeric Violation | 0.01 mg/L | 0.00 | +1,240% | Dec 2021 | Open |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 43.50 mg/L | 42.60 | +2% | Nov 2021 | Resolved |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 43.70 mg/L | 42.60 | +3% | May 2021 | Resolved |
| Dichlorobromomethane | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +150% | Dec 2020 | Open |
| Dichlorobromomethane | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +346% | Dec 2020 | Open |
| Dibromochloromethane | DMR, Limited - Numeric Violation | 0.01 mg/L | 0.00 | +1,150% | Apr 2020 | Open |
| Dibromochloromethane | DMR, Limited - Numeric Violation | 0.01 mg/L | 0.00 | +400% | Apr 2020 | Open |
| Dichlorobromomethane | DMR, Limited - Numeric Violation | 0.01 mg/L | 0.00 | +600% | Nov 2019 | Open |
| Dibromochloromethane | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +100% | Nov 2019 | Open |
| Dichlorobromomethane | DMR, Limited - Numeric Violation | 0.01 mg/L | 0.00 | +1,150% | Nov 2019 | Resolved |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 41.80 mg/L | 10.00 | +318% | Nov 2019 | Resolved |
| Dibromochloromethane | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +400% | Nov 2019 | Resolved |
| Chlorine, total residual | DMR, Limited - Numeric Violation | 0.24 mg/L | 0.10 | +140% | Nov 2018 | Resolved |
| Chlorine, total residual | DMR, Limited - Numeric Violation | 1.32 mg/L | 0.10 | +1,220% | Oct 2018 | Resolved |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 44.00 mg/L | 42.60 | +3% | Oct 2018 | Resolved |
| Oil and grease | DMR, Limited - Numeric Violation | 6.00 mg/L | 5.00 | +20% | Mar 2017 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 262.87 kg/d | 192.95 | +36% | Feb 2017 | Open |
| N-Nitrosodimethylamine [NDMA] | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +229% | Dec 2016 | Open |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 51.70 mg/L | 42.60 | +21% | Dec 2016 | Resolved |
| N-Nitrosodimethylamine [NDMA] | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +567% | Dec 2016 | Resolved |
| N-Nitrosodimethylamine [NDMA] | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +306% | Sep 2016 | Resolved |
| N-Nitrosodimethylamine [NDMA] | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +100% | Sep 2016 | Open |
| N-Nitrosodimethylamine [NDMA] | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +1,471% | 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-N00001379
State CWA Penalty AO
Clean Water Act
· Case CA-N00004566
State CWA Penalty AO
Clean Water Act
· Case CA-N00004049
State CWA Penalty AO
Clean Water Act
· Case CA-N00003640
State CWA Penalty AO
Clean Water Act
· Case CA-N00002315
State CWA Penalty AO
Clean Water Act
· Case CA-N00001380
State CWA Penalty AO
Clean Water Act
· Case CA-N00001378
State CWA Non Penalty AO
Clean Water Act
· Case CA-CFEA456715 · Sep 1, 2024
State CWA Penalty AO
Clean Water Act
· Case CA-CFEA455271 · Feb 14, 2024
$18,000
State CWA Penalty AO
Clean Water Act
· Case CA-CFEA450286 · Feb 23, 2023
$30,000
State CWA Penalty AO
Clean Water Act
· Case CA-CFEA444062 · Mar 23, 2022
$21,000
State CWA Non Penalty AO
Clean Water Act
· Case CA-R319-0124 · Dec 1, 2019
State CWA Penalty AO
Clean Water Act
· Case CA-2008-1134 · Feb 19, 2016
$33,000
State CWA Non Penalty AO
Clean Water Act
· Case CA-2015-1000 · Oct 8, 2014
State CWA Non Penalty AO
Clean Water Act
· Case CA-2010-1078 · Mar 30, 2010
State CWA Penalty AO
Clean Water Act
· Case CA-N00000825 · Oct 26, 2001
State CWA Non Penalty AO
Clean Water Act
· Case CA-N00000214 · Apr 13, 1990
State CWA Non Penalty AO
Clean Water Act
· Case CA-N00002372 · Apr 13, 1990
State CWA Non Penalty AO
Clean Water Act
· Case CA-N00001382 · Mar 13, 1989
State CWA Non Penalty AO
Clean Water Act
· Case CA-N00000053 · May 6, 1988
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