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Tap water quality report

St. Louis Park, MN

EPA monitoring detected 23 contaminants across the 2 water suppliers serving St. Louis Park. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

2
water suppliers
50,126
people served
23
contaminants found
Minnesota rankings Lead in Minnesota PFAS in Minnesota

What was found in St. Louis Park's water

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

ContaminantLevel vs EPA limitSuppliersSource
Fluoride
1100 µg/L 28%
of the EPA limit 4000 µg/L
Main supplier: Saint Louis Park · 50,010 people · 2019
1/2 SYR4
Copper
520.55 µg/L 40%
of the EPA limit 1300 µg/L
Main supplier: Saint Louis Park · 50,010 people · 2018
2/2 SYR4
Nitrate-Nitrite
375.5 µg/L 3.8%
of the EPA limit 10000 µg/L
Main supplier: Saint Louis Park · 50,010 people · 2019
2/2 SYR4
Barium
191 µg/L 9.6%
of the EPA limit 2000 µg/L
Main supplier: Saint Louis Park · 50,010 people · 2017
1/2 SYR4
Lithium
76.2 µg/L
No EPA limit set
Main supplier: Saint Louis Park · 50,010 people · 2023
1/2 UCMR-5
cis-1,2-Dichloroethylene
18.35 µg/L 26%
of the EPA limit 70 µg/L
Main supplier: Saint Louis Park · 50,010 people · 2019
1/2 SYR4
Gross Alpha, Excl. Radon And U
9.575 pCi/L 64%
of the EPA limit 15 pCi/L
Main supplier: Saint Louis Park · 50,010 people · 2019
1/2 SYR4
Dibromochloromethane
6.51 µg/L
No EPA limit set
Main supplier: Saint Louis Park · 50,010 people · 2019
1/2 SYR4
Lead
6.115 µg/L 41%
of the EPA limit 15 µg/L
Main supplier: Saint Louis Park · 50,010 people · 2018
2/2 SYR4
Bromoform
5.46 µg/L
No EPA limit set
Main supplier: Saint Louis Park · 50,010 people · 2019
1/2 SYR4
Bromodichloromethane
2.66 µg/L
No EPA limit set
Main supplier: Saint Louis Park · 50,010 people · 2019
1/2 SYR4
Dichloroacetic Acid
2.16 µg/L
No EPA limit set
Main supplier: Saint Louis Park · 50,010 people · 2019
1/2 SYR4
Vinyl Chloride
2.13 µg/L 107%
of the EPA limit, at the 95th percentile of samples — 2 µg/L
Main supplier: Saint Louis Park · 50,010 people · 2019
1/2 SYR4
Dibromoacetic Acid
1.96 µg/L
No EPA limit set
Main supplier: Saint Louis Park · 50,010 people · 2019
1/2 SYR4
Di(2-ethylhexyl) Phthalate
1.6 µg/L 27%
of the EPA limit 6 µg/L
Main supplier: Saint Louis Park · 50,010 people · 2018
1/2 SYR4
Chloroform
1.3 µg/L
No EPA limit set
Main supplier: Saint Louis Park · 50,010 people · 2019
1/2 SYR4
Trichloroacetic Acid
1.1 µg/L
No EPA limit set
Main supplier: Saint Louis Park · 50,010 people · 2019
1/2 SYR4
trans-1,2-Dichloroethylene
0.9735 µg/L 1%
of the EPA limit 100 µg/L
Main supplier: Saint Louis Park · 50,010 people · 2019
1/2 SYR4
Trichloroethylene
0.6775 µg/L 14%
of the EPA limit 5 µg/L
Main supplier: Saint Louis Park · 50,010 people · 2019
1/2 SYR4
Benzene
0.3800 µg/L 7.6%
of the EPA limit 5 µg/L
Main supplier: Saint Louis Park · 50,010 people · 2019
1/2 SYR4
Chromium
0.3020 µg/L 0.3%
of the EPA limit 100 µg/L
Main supplier: Saint Louis Park · 50,010 people · 2017
1/2 SYR4
Pfba
0.0119 µg/L
No EPA limit set
Main supplier: Saint Louis Park · 50,010 people · 2023
1/2 UCMR-5
Lead
0.0040 mg/L 27%
of the EPA limit 0.0150 mg/L
Main supplier: Saint Louis Park · 50,010 people · 2025
2/2 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. 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 St. Louis Park

SupplierPopulation served
Saint Louis Park 50,010
Countryside Estates 116

Frequently asked questions about St. Louis Park tap water

Is St. Louis Park tap water safe to drink?

EPA testing detected 23 contaminants in the water serving St. Louis Park. 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 St. Louis Park?

2 public water suppliers report drinking-water monitoring for St. Louis Park, Minnesota to the EPA. Each is listed above with its population served.

What contaminants are in St. Louis Park's water?

The contaminants EPA monitoring detected in St. Louis Park include Fluoride, Copper, Nitrate-Nitrite, Barium, Lithium. The full list, with the level at the main supplier 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.