Non-Compliance
Clean Water Act
CITY OF BOULDER WWTF
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $0 in total penalties since records began.
- Address
-
T6N R4W S33 SE
BOULDER, MT 59632
View on map ↗ - County
- JEFFERSON County
- Inspections
- 1 · last Apr 5, 2023
- Total Penalties
- $0
- Registry ID
- 110006723037
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 | Schedule Event unachieved and not reported | Feb 11, 2026 | Mar 14, 2026 | Resolved |
| cwa | Schedule Event unachieved and not reported | Feb 11, 2025 | Mar 14, 2025 | Resolved |
| cwa | Monitoring Violations - Improper Analysis or Lab Error | Apr 5, 2023 | Jun 13, 2023 | Resolved |
| cwa | Monitoring Violations - Analysis not Conducted | Apr 5, 2023 | Jun 13, 2023 | Resolved |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Apr 5, 2023 | Jun 13, 2023 | Resolved |
| cwa | Schedule Event unachieved and not reported | Feb 11, 2022 | Mar 14, 2022 | Resolved |
| cwa | Monitoring Violations - Invalid/Unrepresentative Sample | Oct 30, 2014 | Aug 4, 2015 | Resolved |
| cwa | Management Practice Violations - Failure to Maintain Records | Oct 30, 2014 | Aug 4, 2015 | Resolved |
| cwa | Monitoring Violations - Improper Analysis or Lab Error | Oct 30, 2014 | Aug 4, 2015 | Resolved |
| cwa | Effluent Violations - Numeric effluent violation | Oct 30, 2014 | Aug 4, 2015 | Resolved |
| cwa | Schedule Event reported late | Sep 1, 2014 | — | Open |
| cwa | Schedule Event achieved late but reported | Sep 1, 2014 | — | Open |
| cwa | Schedule Event unachieved but reported | Sep 1, 2014 | Oct 8, 2014 | Resolved |
| cwa | Schedule Event unachieved and not reported | Sep 1, 2014 | Oct 10, 2014 | Resolved |
| cwa | Schedule Event reported late | Oct 31, 2013 | — | Open |
| cwa | Schedule Event unachieved and not reported | Oct 31, 2013 | Dec 23, 2013 | Resolved |
| cwa | Schedule Event achieved late but reported | Oct 31, 2013 | — | Open |
| cwa | Schedule Event unachieved but reported | Oct 31, 2013 | Dec 23, 2013 | Resolved |
| cwa | Schedule Event reported late | Oct 1, 2012 | — | Open |
| cwa | Schedule Event achieved late but reported | Oct 1, 2012 | — | Open |
| cwa | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | Aug 23, 2010 | — | Open |
| cwa | Reporting Violations - Failure to Submit DMRs | Aug 3, 2010 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Aug 3, 2010 | — | Open |
| cwa | Reporting Violations - Late Submittal of DMRs | Aug 3, 2010 | — | Open |
| cwa | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | Aug 3, 2010 | — | Open |
| cwa | Management Practice Violations - Failure to Maintain Records | Aug 3, 2010 | — | 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 |
|---|---|---|---|---|---|---|
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 621.95 MPN/100mL | 252.00 | +147% | May 2025 | Open |
| E. coli, MTEC-MF | DMR, Limited - Overdue | 321.00 MPN/100mL | 252.00 | +99,999% | Aug 2022 | Resolved |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 321.00 MPN/100mL | 252.00 | +99,999% | Aug 2022 | Open |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 1,001.00 MPN/100mL | 252.00 | +297% | May 2022 | Open |
| E. coli, MTEC-MF | DMR, Limited - Overdue | 1,001.00 MPN/100mL | 252.00 | +297% | May 2022 | Resolved |
| Oil & Grease | DMR, Limited - Numeric Violation | 1.00 mg/L | 10.00 | +99,999% | May 2022 | Open |
| Oil & Grease | DMR, Limited - Overdue | 1.00 mg/L | 10.00 | +99,999% | May 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 25.35 mg/L | 10.10 | +151% | Apr 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Overdue | 25.35 mg/L | 10.10 | +151% | Apr 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 27.70 mg/L | 20.20 | +37% | Apr 2022 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Overdue | 27.70 mg/L | 20.20 | +37% | Apr 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Overdue | 25.30 mg/L | 20.20 | +25% | Mar 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 25.30 mg/L | 20.20 | +25% | Mar 2022 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Overdue | 17.40 mg/L | 10.10 | +72% | Mar 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 17.40 mg/L | 10.10 | +72% | Mar 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 15.53 mg/L | 10.10 | +54% | Feb 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Overdue | 21.40 mg/L | 20.20 | +6% | Feb 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 21.40 mg/L | 20.20 | +6% | Feb 2022 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Overdue | 15.53 mg/L | 10.10 | +54% | Feb 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Overdue | 14.60 mg/L | 10.10 | +45% | Jan 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 14.60 mg/L | 10.10 | +45% | Jan 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Overdue | 18.32 mg/L | 10.10 | +81% | Sep 2021 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 18.32 mg/L | 10.10 | +81% | Sep 2021 | Open |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 1,135.47 MPN/100mL | 252.00 | +351% | Sep 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 24.40 mg/L | 20.20 | +21% | Sep 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Overdue | 24.40 mg/L | 20.20 | +21% | Sep 2021 | Resolved |
| E. coli, MTEC-MF | DMR, Limited - Overdue | 229.13 MPN/100mL | 126.00 | +82% | Sep 2021 | Resolved |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 229.13 MPN/100mL | 126.00 | +82% | Sep 2021 | Open |
| E. coli, MTEC-MF | DMR, Limited - Overdue | 1,135.47 MPN/100mL | 252.00 | +351% | Sep 2021 | Resolved |
| E. coli, MTEC-MF | DMR, Limited - Overdue | 807.53 MPN/100mL | 252.00 | +220% | Aug 2021 | Resolved |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 203.31 MPN/100mL | 126.00 | +61% | Aug 2021 | Open |
| E. coli, MTEC-MF | DMR, Limited - Overdue | 203.31 MPN/100mL | 126.00 | +61% | Aug 2021 | Resolved |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 807.53 MPN/100mL | 252.00 | +220% | Aug 2021 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 33.00 mg/L | 30.00 | +10% | May 2015 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 83.00 % | 85.00 | +13% | May 2015 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 54.00 mg/L | 45.00 | +20% | May 2015 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 84.00 % | 85.00 | +7% | Apr 2015 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 29.00 % | 65.00 | +103% | Apr 2015 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 39.00 mg/L | 30.00 | +30% | Apr 2015 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 56.00 mg/L | 45.00 | +24% | Apr 2015 | Open |
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