DCSD, RIVERDALE SUBDIVISION WWTF

Address

HIGHWAY 79 AND RIVERDALE SUBDIVISION
O'FALLON, MO 63366
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County

SAINT CHARLES County

Inspections

1 · last Mar 23, 2022

Total Penalties

$0

Registry ID

110027991626

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	Schedule Event unachieved and not reported	Jan 28, 2023	Feb 28, 2023	Resolved
cwa	Schedule Event unachieved and not reported	Jan 28, 2023	Feb 28, 2023	Resolved
cwa	Schedule Event unachieved but reported	Jan 28, 2016	Jun 9, 2016	Resolved
cwa	Schedule Event achieved late but reported	Jan 28, 2016	—	Open
cwa	Schedule Event unachieved and not reported	Jan 28, 2016	Jun 9, 2016	Resolved
cwa	Schedule Event reported late	Jan 28, 2016	—	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	6.09 mg/L	4.10	+49%	Aug 2021	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	10.50 mg/L	4.10	+156%	May 2019	Open

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