Tap WaterIndex

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Tap water quality report

Westport Sanitary District

EPA monitoring tested this supplier for 5 contaminants and detected 5. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

5
contaminants tested
5
detected
88
people served
10
health-based violations
South Dakota rankingsLead in South DakotaPFAS in South Dakota
Water source
SWP
Ownership
Local government
Counties served
Brown

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.

10
health-based violations
22
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2015-05-27
TT Health-based Resolved 2015-05-27
TT Health-based Resolved 2011-02-01
TT Health-based Resolved 2011-02-01
MCL Health-based Resolved 1996-02-01 → 1996-02-29
MCL Health-based Resolved 1996-02-01 → 1996-02-29
MCL Health-based Resolved 1991-08-01 → 1991-08-31
MCL Health-based Resolved 1991-08-01 → 1991-08-31
MCL Health-based Resolved 1991-08-01 → 1991-08-31
MCL Health-based Resolved 1991-08-01 → 1991-08-31

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2024
Copper
1110 µg/L 85%
of the EPA limit 1300 µg/L
 10/10 SYR4 2014–2017
Lead
4.1 µg/L 27%
of the EPA limit 15 µg/L
 10/10 SYR4 2014–2017
TTHM
12.2 µg/L 15%
of the EPA limit 80 µg/L
 7/7 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
22.1 µg/L 37%
of the EPA limit 60 µg/L
 7/7 SYR4 2013–2019

Utility contact

Contact
ANDY VAN STEENWYK
Phone
6052257924
Email
wdm@midco.net

Frequently asked questions about Westport Sanitary District

Is Westport Sanitary District tap water safe to drink?

EPA monitoring detected 5 contaminants in Westport Sanitary District'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 Westport Sanitary District's water?

EPA monitoring detected Lead, Copper, Lead, TTHM, Total Haloacetic Acids (HAA5). The full list with the level and data source for each is above.

How many people does Westport Sanitary District serve?

Westport Sanitary District reports serving 88 people in South Dakota, per its EPA record.

Has Westport Sanitary District had any water quality violations?

The EPA has 22 violations on file for Westport Sanitary District, of which 10 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.