Non-Compliance
Clean Water Act
MOUNTAIN HOUSE WWTP
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $105,000 in total penalties since records began.
- Address
-
17300 WEST BETHANY ROAD
MOUNTAIN HOUSE, CA 95391
View on map ↗ - County
- SAN JOAQUIN County
- Inspections
- 3 · last May 6, 2025
- Total Penalties
- $105,000 · last Jul 30, 2025
- Registry ID
- 110010058034
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
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 | Aug 3, 2024 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Jul 24, 2024 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Jun 30, 2024 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | May 31, 2024 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Apr 30, 2024 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Mar 31, 2024 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Feb 29, 2024 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Jan 31, 2024 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Aug 15, 2023 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Jul 30, 2023 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Jul 19, 2023 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Jun 29, 2023 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Jun 28, 2023 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Jun 12, 2023 | — | Open |
| cwa | Schedule Event reported late | Jan 31, 2023 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Dec 6, 2022 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Feb 11, 2022 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Feb 10, 2022 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Feb 9, 2022 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Feb 8, 2022 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Feb 7, 2022 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Oct 5, 2021 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Sep 23, 2021 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Dec 21, 2020 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Oct 2, 2020 | — | Open |
| cwa | Effluent Violations - Unauthorized Discharge | Feb 24, 2020 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Jan 31, 2020 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Sep 30, 2019 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Aug 31, 2019 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Jul 31, 2019 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Jul 3, 2019 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Jun 30, 2019 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | May 31, 2019 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Apr 30, 2019 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Mar 31, 2019 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Feb 28, 2019 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Jan 31, 2019 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Dec 31, 2018 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Nov 30, 2018 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Oct 31, 2018 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Aug 31, 2018 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Jul 31, 2018 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Mar 5, 2018 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Feb 28, 2018 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Jan 15, 2018 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Oct 1, 2017 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Sep 16, 2017 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Aug 2, 2017 | — | Open |
| cwa | Schedule Event achieved late but reported | Apr 30, 2012 | — | Open |
| cwa | Schedule Event unachieved but reported | Apr 30, 2012 | Jul 30, 2012 | 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 |
|---|---|---|---|---|---|---|
| Mercury, total recoverable | DMR, Limited - Numeric Violation | 0.00 kg/d | 0.00 | +116% | Dec 2025 | Open |
| Temp. diff. between samp. & upstrm deg. F | DMR, Limited - Numeric Violation | 23.60 deg F | 20.00 | +18% | Dec 2025 | Open |
| Temp. diff. between samp. & upstrm deg. F | DMR, Limited - Numeric Violation | 21.45 deg F | 20.00 | +7% | Dec 2024 | Open |
| Mercury, total recoverable | DMR, Limited - Numeric Violation | 0.00 kg/d | 0.00 | +475% | Dec 2024 | Open |
| Temp. diff. between samp. & upstrm deg. F | DMR, Limited - Numeric Violation | 21.06 deg F | 20.00 | +5% | Nov 2024 | Open |
| Dibromochloromethane | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.01 | +99,999% | May 2024 | Open |
| Dichlorobromomethane | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +105% | Mar 2024 | Open |
| Nitrite + Nitrate total [as N] | DMR, Limited - Numeric Violation | 17.70 mg/L | 16.00 | +11% | Feb 2024 | Open |
| Nitrite + Nitrate total [as N] | DMR, Limited - Numeric Violation | 17.70 mg/L | 10.00 | +77% | Feb 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 18.20 mg/L | 15.00 | +21% | Feb 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 20.50 mg/L | 10.00 | +105% | Jan 2024 | Open |
| Coliform, total general | DMR, Limited - Numeric Violation | 13.00 MPN/100mL | 2.20 | +491% | Jan 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 31.10 mg/L | 15.00 | +107% | Jan 2024 | Open |
| Coliform, total general | DMR, Limited - Numeric Violation | 4.50 MPN/100mL | 2.20 | +105% | Dec 2023 | Open |
| Dibromochloromethane | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.01 | +99,999% | Dec 2023 | Open |
| Temp. diff. between samp. & upstrm deg. F | DMR, Limited - Numeric Violation | 23.30 deg F | 20.00 | +17% | Dec 2023 | Open |
| Dibromochloromethane | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +99,999% | Dec 2023 | Open |
| Temp. diff. between samp. & upstrm deg. F | DMR, Limited - Numeric Violation | 21.70 deg F | 20.00 | +9% | Nov 2023 | Open |
| Chronic Mthd, Survival Endpt %Effect, Reprod Endpt Median TSTcHo R/nR Pass/Fail, StatR8dmax C dubia | DMR, Limited - Numeric Violation | 100.00 pass=0;fail=1 | 0.00 | +2,147,483,650% | Sep 2023 | Open |
| Chronic Mthd, Survival Endpt %Effect, Reprod Endpt Median TSTcHo R/nR Pass/Fail, StatR8dmax C dubia | DMR, Limited - Numeric Violation | 100.00 % | 50.00 | +100% | Sep 2023 | Open |
| Coliform, total general | DMR, Limited - Numeric Violation | 4.00 MPN/100mL | 2.20 | +82% | Aug 2023 | Open |
| Temperature Increase Deg. F | DMR, Limited - Numeric Violation | 87.00 deg F | 20.00 | +335% | Jul 2023 | Open |
| Temperature Increase Deg. F | DMR, Limited - Numeric Violation | 81.60 deg F | 20.00 | +308% | Jun 2023 | Open |
| Temperature Increase Deg. F | DMR, Limited - Numeric Violation | 79.00 deg F | 20.00 | +295% | May 2023 | Open |
| Temperature Increase Deg. F | DMR, Limited - Numeric Violation | 75.80 deg F | 20.00 | +279% | Apr 2023 | Open |
| Temperature Increase Deg. F | DMR, Limited - Numeric Violation | 68.10 deg F | 20.00 | +241% | Mar 2023 | Open |
| Temperature Increase Deg. F | DMR, Limited - Numeric Violation | 69.00 deg F | 20.00 | +245% | Feb 2023 | Open |
| Dibromochloromethane | DMR, Limited - Numeric Violation | 0.87 mg/L | 0.00 | +41,233% | Sep 2022 | Open |
| Dibromochloromethane | DMR, Limited - Numeric Violation | 0.87 mg/L | 0.01 | +14,612% | Sep 2022 | Open |
| Coliform, total general | DMR, Limited - Numeric Violation | 1,600.00 MPN/100mL | 240.00 | +567% | Dec 2021 | Open |
| Coliform, total general | DMR, Limited - Numeric Violation | 13.00 MPN/100mL | 2.20 | +491% | Oct 2021 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 47.00 mg/L | 15.00 | +213% | Aug 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 0.85 mg/L | 0.80 | +6% | May 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 1.80 mg/L | 1.70 | +6% | Mar 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 0.85 mg/L | 0.80 | +6% | Mar 2021 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 36.90 mg/L | 10.00 | +269% | Feb 2021 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 56.30 mg/L | 15.00 | +275% | Feb 2021 | Open |
| Coliform, total general | DMR, Limited - Numeric Violation | 540.00 MPN/100mL | 240.00 | +125% | Sep 2020 | Open |
| Nitrite + Nitrate total [as N] | DMR, Limited - Numeric Violation | 28.00 mg/L | 16.00 | +75% | Sep 2020 | Open |
| Coliform, total general | DMR, Limited - Numeric Violation | 2.40 MPN/100mL | 2.20 | +9% | Jul 2020 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 1.99 mg/L | 0.80 | +149% | Oct 2019 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 4.10 mg/L | 1.70 | +141% | Oct 2019 | Resolved |
| Coliform, total general | DMR, Limited - Numeric Violation | 3.10 MPN/100mL | 2.20 | +41% | Sep 2019 | Open |
| Coliform, total general | DMR, Limited - Numeric Violation | 1,600.00 MPN/100mL | 240.00 | +567% | Sep 2019 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 3.20 mg/L | 0.80 | +300% | Aug 2019 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 32.69 kg/d | 19.52 | +67% | Aug 2019 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 8.30 mg/L | 1.70 | +388% | Aug 2019 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.17 kg/d | 9.08 | +34% | Aug 2019 | Resolved |
| Coliform, total general | DMR, Limited - Numeric Violation | 10.90 MPN/100mL | 2.20 | +395% | Aug 2019 | Open |
| Coliform, total general | DMR, Limited - Numeric Violation | 3.20 MPN/100mL | 2.20 | +45% | Jun 2019 | 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-CFEA461985 · Jul 30, 2025
$42,000
State CWA Penalty AO
Clean Water Act
· Case CA-CFEA448460 · Sep 8, 2022
$36,000
State CWA Penalty AO
Clean Water Act
· Case CA-CFEA445593 · Jan 27, 2022
$27,000
State CWA Penalty AO
Clean Water Act
· Case CA-CFEA442897 · Feb 25, 2021
$120,000
State CWA Penalty AO
Clean Water Act
· Case CA-CFEA435524 · Jan 9, 2020
$57,000
State CWA Penalty AO
Clean Water Act
· Case CA-CFEA433155 · Sep 9, 2019
$61,500
State CWA Penalty AO
Clean Water Act
· Case CA-CFEA426673 · Jan 4, 2019
$15,000
State CWA Non Penalty AO
Clean Water Act
· Case CA-CFEA416416 · Feb 1, 2018
State CWA Non Penalty AO
Clean Water Act
· Case CA-2017-0120 · Dec 8, 2017
State CWA Non Penalty AO
Clean Water Act
· Case CA-2013-1017 · Jan 31, 2013
State CWA Non Penalty AO
Clean Water Act
· Case CA-2012-1059 · Aug 3, 2012
State CWA Non Penalty AO
Clean Water Act
· Case CA-2009-1015 · Feb 5, 2009
State CWA Non Penalty AO
Clean Water Act
· Case CA-N00003457 · May 4, 2007
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