EmissionsLookup
Non-Compliance Clean Water Act

CITY OF LAUREL WASTE WATER TREATMENT PLANT

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
1501 SEWER PLANT ROAD
LAUREL, MT 59044
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County
YELLOWSTONE County
Inspections
4 · last Mar 27, 2025
Total Penalties
$0 · last Jan 17, 2015
Registry ID
110000737249

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

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 WW Storm Water Non-Construction - Failure to Conduct Inspections Sep 26, 2023 Nov 28, 2023 Resolved
cwa WW Storm Water Non-Construction - Failure to submit required report (non-DMR) Sep 26, 2023 Nov 28, 2023 Resolved
cwa WW Storm Water Non-Construction - Failure to develop any or adequate SWPPP/SWMP Sep 26, 2023 Nov 28, 2023 Resolved
cwa WW Storm Water Non-Construction - Failure to Maintain Records Sep 26, 2023 Nov 28, 2023 Resolved
cwa Schedule Event unachieved and not reported Feb 15, 2023 Mar 18, 2023 Resolved
cwa Schedule Event unachieved and not reported Feb 15, 2022 Mar 18, 2022 Resolved
cwa Schedule Event unachieved and not reported Feb 15, 2021 Mar 18, 2021 Resolved
cwa Schedule Event unachieved and not reported Feb 15, 2020 Mar 17, 2020 Resolved
cwa Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) Jan 10, 2019 Mar 15, 2019 Resolved
cwa Effluent Violations - Numeric effluent violation Jan 10, 2019 Mar 15, 2019 Resolved
cwa Reporting Violations - Improper/ Incorrect Reporting Jan 10, 2019 Mar 15, 2019 Resolved
cwa Schedule Event unachieved but reported Jan 28, 2017 Apr 7, 2017 Resolved
cwa Schedule Event unachieved and not reported Jan 28, 2017 Apr 7, 2017 Resolved
cwa Schedule Event reported late Jan 28, 2017 Open
cwa Schedule Event achieved late but reported Jan 28, 2017 Open
cwa WW Storm Water Non-Construction - Failure to Implement SWPPP/SWMP Nov 17, 2016 Jan 23, 2017 Resolved
cwa Monitoring Violations - Frequency of Sampling Violation Nov 17, 2016 Jan 20, 2017 Resolved
cwa Management Practice Violations - Failure to Maintain Records Nov 17, 2016 Jan 20, 2017 Resolved
cwa WW Storm Water Non-Construction - Failure to Maintain Records Nov 17, 2016 Jan 23, 2017 Resolved
cwa WW Storm Water Non-Construction - Failure to Conduct Inspections Nov 17, 2016 Jan 23, 2017 Resolved
cwa WW Storm Water Non-Construction - Failure to develop any or adequate SWPPP/SWMP Nov 17, 2016 Jan 23, 2017 Resolved
cwa Schedule Event achieved late but reported Jul 1, 2014 Open
cwa WW SSO - Overflow to Dry Land or Building Backup Apr 27, 2014 May 1, 2014 Resolved
cwa WW SSO - Narrative effluent violation Mar 7, 2014 Mar 10, 2014 Resolved
cwa WW SSO - Overflow to Dry Land or Building Backup Oct 15, 2013 Oct 28, 2013 Resolved
cwa WW SSO - Overflow to Dry Land or Building Backup Sep 8, 2013 Oct 8, 2013 Resolved
cwa WW SSO - Overflow to Dry Land or Building Backup May 29, 2013 Jul 1, 2013 Resolved
cwa WW SSO - Overflow to Dry Land or Building Backup Mar 22, 2013 Apr 30, 2013 Resolved
cwa Reporting Violations - Failure to Notify Nov 15, 2012 Apr 29, 2013 Resolved
cwa Management Practice Violations - Failure to Maintain Records Nov 15, 2012 Apr 29, 2013 Resolved
cwa Reporting Violations - Improper/ Incorrect Reporting Nov 15, 2012 Apr 29, 2013 Resolved
cwa Effluent Violations - Numeric effluent violation Nov 15, 2012 Apr 29, 2013 Resolved
cwa WW SSO - Discharge to Waters Dec 23, 2010 Jan 4, 2011 Resolved
cwa Management Practice Violations - Failure to Maintain Records Dec 2, 2010 Feb 7, 2011 Resolved
cwa Monitoring Violations - Analysis not Conducted Dec 2, 2010 Feb 7, 2011 Resolved
cwa Management Practice Violations - Improper Operation and Maintenance Dec 2, 2010 Feb 7, 2011 Resolved
cwa Monitoring Violations - Improper Analysis or Lab Error Dec 2, 2010 Feb 7, 2011 Resolved
cwa Permit Violations - Violation Specified in Comment Feb 9, 2005 Apr 29, 2013 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
Solids, total suspended DMR, Limited - Numeric Violation 167.16 kg/d 149.82 +12% Jun 2023 Open
Nitrite + Nitrate total [as N] DMR, Limited - Numeric Violation 10.20 mg/L 10.00 +2% Apr 2021 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 8.29 mg/L 2.80 +196% May 2019 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 16.40 mg/L 5.60 +193% May 2019 Resolved
E. coli, MTEC-MF DMR, Limited - Numeric Violation 1,200.00 MPN/100mL 252.00 +376% May 2019 Open
Phosphorus, total [as P] DMR, Limited - Numeric Violation 39.39 kg/d 33.14 +19% Apr 2019 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 10.30 mg/L 5.60 +84% Apr 2019 Resolved
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 3.34 mg/L 2.80 +19% Apr 2019 Open
E. coli, MTEC-MF DMR, Limited - Numeric Violation 1,292.00 MPN/100mL 252.00 +413% Apr 2019 Open
E. coli, MTEC-MF DMR, Limited - Numeric Violation 143.00 MPN/100mL 126.00 +13% Apr 2019 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 7.10 mg/L 5.60 +27% Jan 2019 Open
Nitrite + Nitrate total [as N] DMR, Limited - Numeric Violation 16.10 mg/L 10.00 +61% Jan 2019 Open
E. coli, MTEC-MF DMR, Limited - Numeric Violation 203.82 MPN/100mL 126.00 +62% May 2018 Open
E. coli, MTEC-MF DMR, Limited - Numeric Violation 322.06 MPN/100mL 252.00 +28% May 2018 Open
Solids, total suspended DMR, Limited - Numeric Violation 286.04 kg/d 149.82 +91% May 2018 Open
Solids, total suspended DMR, Limited - Numeric Violation 144.52 kg/d 99.88 +45% May 2018 Open
Phosphorus, total [as P] DMR, Limited - Numeric Violation 49.74 kg/d 33.14 +50% Apr 2018 Open
E. coli, MTEC-MF DMR, Limited - Numeric Violation 295.68 MPN/100mL 252.00 +17% Apr 2018 Open
E. coli, MTEC-MF DMR, Limited - Numeric Violation 188.54 MPN/100mL 126.00 +50% Apr 2018 Open
Solids, total suspended DMR, Limited - Numeric Violation 197.40 kg/d 149.82 +32% Mar 2018 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 8.70 mg/L 5.60 +55% Sep 2017 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 4.88 mg/L 2.80 +74% Sep 2017 Resolved
Solids, total suspended DMR, Limited - Numeric Violation 110.27 kg/d 99.88 +10% Jun 2017 Open
Solids, total suspended DMR, Limited - Numeric Violation 378.17 kg/d 149.82 +152% Jun 2017 Open
Solids, total suspended DMR, Limited - Numeric Violation 100.00 mg/L 45.00 +122% Jun 2017 Open
Solids, total suspended DMR, Limited - Numeric Violation 165.32 kg/d 149.82 +10% May 2017 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 12.20 mg/L 5.60 +118% Apr 2017 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 8.15 mg/L 2.80 +191% Apr 2017 Resolved
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 8.78 mg/L 2.80 +214% Mar 2017 Resolved
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 6.61 mg/L 2.80 +136% Feb 2017 Resolved
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 5.88 mg/L 2.80 +110% Jan 2017 Resolved
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 4.86 mg/L 2.80 +74% Nov 2016 Resolved
Solids, total suspended DMR, Limited - Numeric Violation 293.39 kg/d 149.82 +96% Oct 2016 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 5.26 mg/L 2.80 +88% Sep 2016 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 5.70 mg/L 2.80 +104% Aug 2016 Open
Nitrogen, total [as N] DMR, Limited - Numeric Violation 118.95 kg/d 105.78 +12% Feb 2015 Resolved
Nitrogen, total [as N] DMR, Limited - Numeric Violation 106.69 kg/d 105.78 +1% Jan 2015 Resolved

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 Administrative Order of Consent
Clean Water Act · Case MT-FID2242 · Jul 1, 2013
$2,850

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