Clean Water Act

WILLOW CREEK WASTEWATER TREATMENT PLANT

Quick Summary

•Assessed $0 in total penalties since records began.

Address: T1N R1E S19
WILLOW CREEK, MT 59760
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County: GALLATIN County
Inspections: 1 · last Jan 11, 2023
Total Penalties: $0 · last Mar 7, 2008
Registry ID: 110011046796

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	Reporting Violations - Improper/ Incorrect Reporting	Jan 11, 2023	Mar 16, 2023	Resolved
cwa	Monitoring Violations - Improper Analysis or Lab Error	Jan 11, 2023	Mar 16, 2023	Resolved
cwa	Effluent Violations - Numeric effluent violation	Jul 29, 2010	Apr 27, 2011	Resolved
cwa	Management Practice Violations - Failure to Maintain Records	Jul 29, 2010	Apr 27, 2011	Resolved
cwa	Management Practice Violations - Improper Operation and Maintenance	Jul 29, 2010	Apr 27, 2011	Resolved
cwa	Monitoring Violations - Frequency of Sampling Violation	Jul 29, 2010	Apr 27, 2011	Resolved
cwa	Reporting Violations - Late Submittal of DMRs	Jul 29, 2010	Apr 27, 2011	Resolved
cwa	Monitoring Violations - Improper Analysis or Lab Error	Jul 29, 2010	Apr 27, 2011	Resolved
cwa	Monitoring Violations - Analysis not Conducted	Jul 29, 2010	Apr 27, 2011	Resolved
cwa	Schedule Event achieved late but reported	Feb 15, 2009	—	Open
cwa	Schedule Event achieved late but reported	Aug 15, 2008	—	Open
cwa	Monitoring Violations - Frequency of Sampling Violation	Apr 9, 2008	—	Open
cwa	Reporting Violations - Failure to Submit DMRs	Apr 9, 2008	—	Open
cwa	Management Practice Violations - Failure to Maintain Records	Apr 9, 2008	—	Open
cwa	Management Practice Violations - Improper Operation and Maintenance	Apr 9, 2008	—	Open
cwa	Effluent Violations - Unapproved Bypass	Apr 9, 2008	—	Open
cwa	Schedule Event achieved late but reported	Feb 15, 2008	—	Open
cwa	Schedule Event reported late	Feb 15, 2008	—	Open
cwa	Effluent Violations - Unapproved Bypass	Jun 23, 2005	—	Open
cwa	Permit Violations - Violation Specified in Comment	May 6, 2005	—	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
Solids, total suspended	DMR, Limited - Numeric Violation	5.40 kg/d	3.92	+38%	Feb 2022	Open
BOD, 5-day, 20 deg. C	DMR, Limited - Numeric Violation	12.71 kg/d	3.92	+224%	Dec 2019	Open
BOD, 5-day, 20 deg. C	DMR, Limited - Overdue	19.07 kg/d	5.88	+224%	Dec 2019	Resolved
BOD, 5-day, 20 deg. C	DMR, Limited - Numeric Violation	19.07 kg/d	5.88	+224%	Dec 2019	Open
E. coli, MTEC-MF	DMR, Limited - Numeric Violation	920.80 MPN/100mL	630.00	+46%	Dec 2019	Open
Solids, total suspended	DMR, Limited - Numeric Violation	40.09 kg/d	3.92	+923%	Dec 2019	Open
Solids, total suspended	DMR, Limited - Numeric Violation	91.00 mg/L	30.00	+203%	Dec 2019	Open
Solids, total suspended	DMR, Limited - Overdue	76.73 kg/d	5.88	+1,205%	Dec 2019	Resolved
Solids, total suspended	DMR, Limited - Numeric Violation	76.73 kg/d	5.88	+1,205%	Dec 2019	Open
Solids, total suspended	DMR, Limited - Overdue	176.00 mg/L	45.00	+291%	Dec 2019	Resolved
Solids, suspended percent removal	DMR, Limited - Numeric Violation	7.10 %	85.00	+519%	Dec 2019	Open
Solids, total suspended	DMR, Limited - Numeric Violation	176.00 mg/L	45.00	+291%	Dec 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 Administrative Order of Consent

Clean Water Act · Case MT-N00000656 · Apr 24, 2006

$32,200

CWA 309A AO For Compliance

Clean Water Act · Case 08-1993-N003 · Apr 20, 1993