Tap WaterIndex

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Tap water quality report

Marvin

EPA monitoring tested this supplier for 17 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

17
contaminants tested
10
detected
19
people served
17
health-based violations
South Dakota rankingsLead in South DakotaPFAS in South Dakota
Water source
Ground water
Ownership
Local government
Counties served
Grant

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

17
health-based violations
679
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2019-02-01
TT Health-based Resolved 2019-02-01
TT Health-based Resolved 2015-02-01
TT Health-based Resolved 2015-02-01
TT Health-based Resolved 2014-02-01
TT Health-based Resolved 2014-02-01
MCL Health-based Resolved 2012-06-01 → 2012-06-30
MCL Health-based Resolved 2012-06-01 → 2012-06-30
MCL Health-based Resolved 2012-06-01 → 2012-06-30
TT Health-based Resolved 2008-05-12

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 15/15 LCR 2023
Copper
41 µg/L 3.2%
of the EPA limit 1300 µg/L
worst single sample: 50 µg/L
10/10 SYR4 2014–2017
Lead
3.24 µg/L 22%
of the EPA limit 15 µg/L
worst single sample: 3.6 µg/L
10/10 SYR4 2014–2017
Arsenic
9 µg/L 90%
of the EPA limit 10 µg/L
 1/1 SYR4 2017
Barium
15.1 µg/L 0.8%
of the EPA limit 2000 µg/L
 1/1 SYR4 2017
Chromium
1 µg/L 1%
of the EPA limit 100 µg/L
 1/1 SYR4 2017
Fluoride
400 µg/L 10%
of the EPA limit 4000 µg/L
 1/1 SYR4 2017
Selenium
2.9 µg/L 5.8%
of the EPA limit 50 µg/L
 1/1 SYR4 2017
TTHM
0.6100 µg/L 0.8%
of the EPA limit 80 µg/L
 1/3 SYR4 2013–2017
Total Haloacetic Acids (HAA5)
1.38 µg/L 2.3%
of the EPA limit 60 µg/L
 1/3 SYR4 2013–2017
7 contaminants tested, none detected
Antimony, TotalBeryllium, TotalCadmiumMercuryNitrateNitriteThallium, Total

Utility contact

Contact
CHUCK WERNER
Email
[email protected]; pegmeyerss

Frequently asked questions about Marvin

Is Marvin tap water safe to drink?

EPA monitoring detected 10 contaminants in Marvin's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Marvin's water?

EPA monitoring detected Lead, Copper, Lead, Arsenic, Barium, and others. The full list with the level and data source for each is above.

How many people does Marvin serve?

Marvin reports serving 19 people in South Dakota, per its EPA record.

Has Marvin had any water quality violations?

The EPA has 679 violations on file for Marvin, of which 17 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.