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Water Systems with Clean EPA Compliance Records

These water systems have no health-based EPA violations on record, demonstrating consistent compliance with federal Safe Drinking Water Act standards.

77

Systems with No Violations

97.5%

Compliance Rate

2

Systems with Violations

About EPA Violations

The Safe Drinking Water Act requires public water systems to monitor and test their water regularly and report results to state and federal authorities. Violations can include:

  • Health-based violations: Exceeding maximum contaminant levels
  • Monitoring violations: Failing to test water as required
  • Reporting violations: Not reporting test results on time
  • Treatment violations: Not properly treating water

Systems shown here have maintained clean compliance records, meeting all federal standards for testing, treatment, and contaminant levels.

Top 30 Systems with Perfect Compliance

Ranked by overall water quality score

RankCity & SystemComplianceLead (ppb)Nitrate (ppm)PFASOverall ScoreAction
#1

ST CLOUD

MN1730055

Clean
5.04.7None
B85
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#2

PRIOR LAKE

MN1700020

Clean
5.04.2None
B85
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#3

Belle Plaine

MN1700001

Clean
5.54.5None
C75
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#4

Benson

MN1760008

Clean
5.08.7None
C75
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#5

OAKDALE

MN1820027

Clean
7.54.4None
C75
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#6

ST CLOUD

MN1730044

Clean
10.05.0None
C75
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#7

ST CLOUD

MN1730049

Clean
9.74.6None
C75
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#8

Monticello

MN1860012

Clean
9.14.4None
C75
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#9

Duluth

MN1690049

Clean
6.54.9None
C75
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#10

Elk River

MN1710013

Clean
5.84.9None
C75
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#11

STAPLES

MN1770013

Clean
5.05.8None
C75
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#12

Elk River

MN1860008

Clean
5.07.5None
C75
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#13

PRIOR LAKE

MN1700019

Clean
6.34.3None
C75
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#14

PRIOR LAKE

MN1700017

Clean
6.14.6None
C75
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#15

COLD SPRING

MN1730040

Clean
8.35.0None
C75
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#16

Plymouth

MN1860017

Clean
11.74.4None
D65
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#17

ST CLOUD

MN1730046

Clean
6.99.9None
D65
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#18

Oakdale

MN1820036

Clean
8.78.8None
D65
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#19

Shakopee

MN1700022

Clean
5.36.5None
D65
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#20

Breckenridge

MN1840002

Clean
5.77.3None
D65
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#21

Buffalo

MN1860005

Clean
9.86.1None
D65
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#22

ST CLOUD

MN1730050

Clean
6.08.6None
D65
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#23

Edina

MN1730012

Clean
8.98.9None
D65
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#24

Cottage Grove

MN1820004

Clean
12.94.6None
D65
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#25

Hastings

MN1820034

Clean
8.39.5None
D65
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#26

Elk River

MN1710004

Clean
6.78.1None
D65
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#27

Shakopee

MN1700015

Clean
5.45.6None
D65
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#28

ST CLOUD

MN1730054

Clean
6.88.6None
D65
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#29

Winona

MN1850012

Clean
9.66.9None
D65
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#30

ST PAUL

MN1820012

Clean
10.06.3None
D65
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