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Tap water quality report

Britton, SD

EPA monitoring detected 13 contaminants across the 7 water suppliers serving Britton. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

7
water suppliers
7,361
people served
13
contaminants found
South Dakota rankings Lead in South Dakota PFAS in South Dakota

What was found in Britton's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Copper
1010 µg/L 78%
of the EPA limit 1300 µg/L
 7/7 SYR4
Nitrate
800 µg/L 8%
of the EPA limit 10000 µg/L
 1/7 SYR4
Fluoride
590 µg/L 15%
of the EPA limit 4000 µg/L
 2/7 SYR4
Lithium
137 µg/L
No EPA limit set
 1/7 UCMR-5
Arsenic
88 µg/L 880%
of the EPA limit, in the worst sample — 10 µg/L
 1/7 SYR4
Lead
30.2 µg/L 201%
of the EPA limit, in the worst sample — 15 µg/L
 7/7 SYR4
Nitrite
30 µg/L 3%
of the EPA limit 1000 µg/L
 1/7 SYR4
Chromium
14.1 µg/L 14%
of the EPA limit 100 µg/L
 2/7 SYR4
Barium
14 µg/L 0.7%
of the EPA limit 2000 µg/L
 2/7 SYR4
Total Haloacetic Acids (HAA5)
11.5 µg/L 19%
of the EPA limit 60 µg/L
 6/7 SYR4
TTHM
4.98 µg/L 6.2%
of the EPA limit 80 µg/L
 6/7 SYR4
Selenium
0.9000 µg/L 1.8%
of the EPA limit 50 µg/L
 2/7 SYR4
Lead
0.0060 mg/L 40%
of the EPA limit 0.0150 mg/L
 7/7 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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Britton

SupplierPopulation served
BROWN-DAY-MARSHALL RWS 5,673
BRITTON 1,215
PEEVER 140
SUNSET COLONY 140
CLAREMONT 108
LAKE CITY 45
AMHERST WATER COMPANY 40

Frequently asked questions about Britton tap water

Is Britton tap water safe to drink?

EPA testing detected 13 contaminants in the water serving Britton. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Britton?

7 public water suppliers report drinking-water monitoring for Britton, South Dakota to the EPA. Each is listed above with its population served.

What contaminants are in Britton's water?

The contaminants EPA monitoring detected in Britton include Copper, Nitrate, Fluoride, Lithium, Arsenic. The full list, with the highest level found and the data source, is in the table above.

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.