WESTPORT APARTMENTS WWTP

Address

HWY 81
CANTON, MO 63435
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County

LEWIS County

Inspections

2 · last Dec 9, 2025

Total Penalties

$0

Registry ID

110009871255

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.

2

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	Effluent Violations - Numeric effluent violation	Dec 31, 2025	—	Open
cwa	Effluent Violations - Numeric effluent violation	Nov 1, 2021	Sep 14, 2022	Resolved
cwa	Permit Violations - Violation Specified in Comment	Nov 1, 2021	Sep 14, 2022	Resolved
cwa	Reporting Violations - Improper/ Incorrect Reporting	Nov 1, 2021	Sep 14, 2022	Resolved
cwa	Permit Violations - Violation Specified in Comment	Oct 23, 2018	Oct 23, 2018	Resolved
cwa	Schedule Event unachieved and not reported	Dec 1, 2015	Feb 26, 2016	Resolved
cwa	Schedule Event unachieved but reported	Dec 1, 2015	Feb 26, 2016	Resolved
cwa	Schedule Event achieved late but reported	Dec 1, 2015	—	Open
cwa	Schedule Event reported late	Dec 1, 2015	—	Open
cwa	Schedule Event unachieved but reported	Dec 1, 2014	Feb 26, 2016	Resolved
cwa	Schedule Event reported late	Dec 1, 2014	—	Open
cwa	Schedule Event achieved late but reported	Dec 1, 2014	—	Open
cwa	Schedule Event unachieved and not reported	Dec 1, 2014	Feb 26, 2016	Resolved
cwa	Schedule Event unachieved and not reported	Jun 1, 2014	Feb 26, 2016	Resolved
cwa	Schedule Event unachieved but reported	Jun 1, 2014	Feb 26, 2016	Resolved
cwa	Schedule Event reported late	Jun 1, 2014	—	Open
cwa	Schedule Event achieved late but reported	Jun 1, 2014	—	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
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	2.90 mg/L	2.70	+7%	Mar 2025	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	3.50 mg/L	2.70	+30%	Mar 2024	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	10.00 mg/L	3.60	+178%	Sep 2021	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	10.00 mg/L	1.40	+614%	Sep 2021	Open
Chlorine, total residual	DMR, Limited - Numeric Violation	0.13 mg/L	0.01	+1,525%	Dec 2019	Open
Chlorine, total residual	DMR, Limited - Numeric Violation	0.13 mg/L	0.02	+665%	Dec 2019	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	11.00 mg/L	7.50	+47%	Dec 2018	Open
BOD, 5-day, 20 deg. C	DMR, Limited - Numeric Violation	101.10 mg/L	65.00	+56%	Mar 2016	Open
Solids, total suspended	DMR, Limited - Numeric Violation	89.50 mg/L	80.00	+12%	Mar 2016	Open
BOD, 5-day, 20 deg. C	DMR, Limited - Numeric Violation	101.10 mg/L	45.00	+125%	Mar 2016	Open

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