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Tap water quality report

ZIP 57016 — Chester, SD

EPA monitoring across the 1 water supplier serving ZIP 57016 in Chester, SD detected 5 contaminants. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier below, with the EPA limit for each.

1
water supplier
363
people served
5
contaminants found

What was found in ZIP 57016

The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Copper
121.99999999999989 µg/L 9.4%
of the EPA limit 1300 µg/L
Main supplier: CHESTER SANITARY DISTRICT · 363 people · 2018
1/1 SYR4
TTHM
64.35 µg/L 80%
of the EPA limit 80 µg/L
Main supplier: CHESTER SANITARY DISTRICT · 363 people · 2018
1/1 SYR4
Total Haloacetic Acids (HAA5)
17.125 µg/L 29%
of the EPA limit 60 µg/L
Main supplier: CHESTER SANITARY DISTRICT · 363 people · 2018
1/1 SYR4
Lead
5.779999999999999 µg/L 39%
of the EPA limit 15 µg/L
Main supplier: CHESTER SANITARY DISTRICT · 363 people · 2018
1/1 SYR4
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
Main supplier: CHESTER SANITARY DISTRICT · 363 people · 2023
1/1 LCR
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 the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.

Water suppliers serving ZIP 57016

SupplierStatePopulation served
CHESTER SANITARY DISTRICT SD 363

Frequently asked questions about ZIP 57016 tap water

Is the tap water in ZIP 57016 safe to drink?

EPA testing detected 5 contaminants across the water suppliers serving ZIP 57016. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.

Which water suppliers serve ZIP 57016?

1 public water supplier report EPA drinking-water monitoring for ZIP 57016. Each is listed above with its population served.

What contaminants are in ZIP 57016's water?

EPA monitoring detected Copper, TTHM, Total Haloacetic Acids (HAA5), Lead, Lead across this ZIP's suppliers. The full list with levels and sources is above.