PRINCETON WWTP

Address

100 POND ROAD
PRINCETON, MN 55371
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County

SHERBURNE County

Inspections

3 · last Sep 23, 2025

Total Penalties

$0

Registry ID

110039749038

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.

4

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 reported late	Sep 4, 2025	—	Open
cwa	Schedule Event achieved late but reported	Sep 4, 2025	—	Open
cwa	Schedule Event achieved late but reported	Sep 4, 2024	—	Open
cwa	Schedule Event achieved late but reported	Sep 4, 2024	—	Open
cwa	Schedule Event unachieved but reported	Dec 31, 2013	Jun 19, 2014	Resolved
cwa	Schedule Event achieved late but reported	Dec 31, 2013	—	Open
cwa	Schedule Event reported late	Dec 31, 2013	—	Open
cwa	Schedule Event unachieved and not reported	Dec 31, 2013	Jun 19, 2014	Resolved
cwa	Schedule Event unachieved and not reported	Dec 31, 2013	Jun 19, 2014	Resolved
cwa	Schedule Event unachieved but reported	Dec 31, 2013	Jun 19, 2014	Resolved
cwa	Schedule Event achieved late but reported	Dec 31, 2013	—	Open
cwa	Schedule Event reported late	Dec 31, 2013	—	Open
cwa	Schedule Event reported late	Sep 30, 2013	—	Open
cwa	Schedule Event achieved late but reported	Sep 30, 2013	—	Open
cwa	Schedule Event achieved late but reported	Mar 31, 2013	—	Open
cwa	Schedule Event reported late	Mar 31, 2013	—	Open
cwa	Schedule Event achieved late but reported	Dec 31, 2011	—	Open
cwa	Schedule Event reported late	Dec 31, 2011	—	Open
cwa	Schedule Event unachieved but reported	Dec 31, 2011	Dec 18, 2012	Resolved
cwa	Schedule Event achieved late but reported	Dec 31, 2011	—	Open
cwa	Schedule Event unachieved but reported	Dec 31, 2011	Dec 28, 2012	Resolved
cwa	Schedule Event reported late	Dec 31, 2011	—	Open
cwa	Schedule Event unachieved and not reported	Dec 31, 2011	Dec 28, 2012	Resolved
cwa	Schedule Event unachieved and not reported	Dec 31, 2011	Dec 18, 2012	Resolved
cwa	Schedule Event unachieved and not reported	May 31, 1994	Jan 5, 1995	Resolved
cwa	Schedule Event achieved late but reported	May 31, 1994	—	Open
cwa	Schedule Event unachieved and not reported	Oct 31, 1993	Jul 13, 1994	Resolved
cwa	Schedule Event achieved late but reported	Oct 31, 1993	—	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	14.20 mg/L	5.00	+184%	Mar 2022	Resolved
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	10.10 mg/L	5.00	+102%	Feb 2022	Resolved
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	7.00 mg/L	5.00	+40%	Mar 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 CWA Non Penalty AO

Clean Water Act · Case MN-N00000003 · Apr 19, 1990

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