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Tap water quality report

Web Water Development Association

EPA monitoring tested this supplier for 51 contaminants and detected 12. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

51
contaminants tested
12
detected
20,750
people served
2
health-based violations
South Dakota rankingsLead in South DakotaPFAS in South Dakota
Water source
Surface water
Ownership
Private
Counties served
Brown, Campbell, Day, Edmunds, Faulk, Marshall, McPherson, Potter, Spink, Walworth

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.

2
health-based violations
8
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2010-02-01
TT Health-based Resolved 2010-02-01
Other Monitoring Resolved 2004-07-01
Other Monitoring Resolved 2004-07-01
Other Monitoring Resolved 2004-06-08
Other Monitoring Resolved 2004-06-08
MR Monitoring Resolved 1993-10-01 → 1993-12-31
MR Monitoring Resolved 1993-10-01 → 1993-12-31

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 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
Copper
1038 µg/L 80%
of the EPA limit 1300 µg/L
worst single sample: 1440 µg/L
92/92 SYR4 2013–2019
Lead
3.135 µg/L 21%
of the EPA limit 15 µg/L
worst single sample: 5.7 µg/L
92/92 SYR4 2013–2019
TTHM
15.485 µg/L 19%
of the EPA limit 80 µg/L
worst single sample: 18.7 µg/L
60/60 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
25.625 µg/L 43%
of the EPA limit 60 µg/L
worst single sample: 44.8 µg/L
60/60 SYR4 2012–2019
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 16/16 LCR 2025
Nitrate
400 µg/L 4%
of the EPA limit 10000 µg/L
 4/6 SYR4 2017–2019
Lithium
46 µg/L
No EPA limit set
 4/4 UCMR-5 2024
Antimony, Total
0.3000 µg/L 5%
of the EPA limit 6 µg/L
 1/1 SYR4 2013
Barium
47.6 µg/L 2.4%
of the EPA limit 2000 µg/L
 1/1 SYR4 2013
Chromium
4.7 µg/L 4.7%
of the EPA limit 100 µg/L
 1/1 SYR4 2013
Fluoride
480 µg/L 12%
of the EPA limit 4000 µg/L
 1/1 SYR4 2019
Selenium
1.7 µg/L 3.4%
of the EPA limit 50 µg/L
 1/1 SYR4 2013
39 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaArsenicBeryllium, TotalCadmiumCombined Radium (-226 And -228)Combined UraniumGross Alpha, Excl. Radon And UGross Beta Particle ActivityHfpo-DaMercuryNetfosaaNfdhaNmefosaaNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaThallium, Total

Utility contact

Contact
CLAYTON LARSON
Phone
6052294749
Email
[email protected]

Frequently asked questions about Web Water Development Association

Is Web Water Development Association tap water safe to drink?

EPA monitoring detected 12 contaminants in Web Water Development Association'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 Web Water Development Association's water?

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

How many people does Web Water Development Association serve?

Web Water Development Association reports serving 20,750 people in South Dakota, per its EPA record.

Has Web Water Development Association had any water quality violations?

The EPA has 8 violations on file for Web Water Development Association, of which 2 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.