Is Saint Louis Park Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local government
Counties served: Hennepin

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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2008-05-28 → 2008-12-04
MCL	Health-based	Resolved	2008-05-28 → 2008-12-04
MCL	Health-based	Resolved	2008-05-28 → 2008-12-04
MCL	Health-based	Resolved	2008-05-28 → 2008-12-04
MCL	Health-based	Resolved	2008-03-17 → 2008-12-04
MCL	Health-based	Resolved	2008-03-17 → 2008-12-04
MCL	Health-based	Resolved	2008-03-17 → 2008-12-04
MCL	Health-based	Resolved	2008-03-17 → 2008-12-04
MCL	Health-based	Resolved	2003-07-01 → 2003-09-30
MCL	Health-based	Resolved	2003-07-01 → 2003-09-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).

Contaminant	Max	Detection rate	Period
Pfba	0.0119 µg/L	6/12	2023

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Copper	520.55 µg/L 40% of the EPA limit 1300 µg/L worst single sample: 997 µg/L	90/90	SYR4	2012–2018
Chloroform	1.3 µg/L No EPA limit set worst single sample: 1.7 µg/L	68/73	SYR4	2012–2019
Bromodichloromethane	2.66 µg/L No EPA limit set worst single sample: 4.4 µg/L	45/72	SYR4	2012–2019
Lead	6.115 µg/L 41% of the EPA limit 15 µg/L worst single sample: 15.6 µg/L	38/90	SYR4	2012–2018
Nitrate-Nitrite	375.5 µg/L 3.8% of the EPA limit 10000 µg/L worst single sample: 460 µg/L	34/90	SYR4	2012–2019
cis-1,2-Dichloroethylene	18.35 µg/L 26% of the EPA limit 70 µg/L worst single sample: 20 µg/L	34/43	SYR4	2012–2019
Fluoride	1100 µg/L 28% of the EPA limit 4000 µg/L	32/32	SYR4	2012–2019
trans-1,2-Dichloroethylene	0.9735 µg/L 1% of the EPA limit 100 µg/L worst single sample: 1.8 µg/L	32/43	SYR4	2012–2019
Dibromochloromethane	6.51 µg/L No EPA limit set worst single sample: 9.6 µg/L	27/71	SYR4	2012–2019
Gross Alpha, Excl. Radon And U	9.575 pCi/L 64% of the EPA limit 15 pCi/L worst single sample: 11 pCi/L	20/23	SYR4	2012–2019
Bromoform	5.46 µg/L No EPA limit set worst single sample: 5.8 µg/L	18/72	SYR4	2012–2019
Lead	0.0040 mg/L 27% of the EPA limit 0.0150 mg/L	18/18	LCR	2025
Vinyl Chloride	2.13 µg/L 107% of the EPA limit, at the 95th percentile of samples — 2 µg/L worst single sample: 2.3 µg/L	18/42	SYR4	2012–2019
Dichloroacetic Acid	2.16 µg/L No EPA limit set worst single sample: 2.4 µg/L	17/31	SYR4	2012–2019
Trichloroethylene	0.6775 µg/L 14% of the EPA limit 5 µg/L worst single sample: 0.7000 µg/L	16/42	SYR4	2012–2019
Dibromoacetic Acid	1.96 µg/L No EPA limit set worst single sample: 2 µg/L	9/31	SYR4	2012–2019
Lithium	76.2 µg/L No EPA limit set	7/12	UCMR-5	2023
Chromium	0.3020 µg/L 0.3% of the EPA limit 100 µg/L worst single sample: 0.3100 µg/L	5/13	SYR4	2014–2017
Trichloroacetic Acid	1.1 µg/L No EPA limit set	4/31	SYR4	2012–2019
Benzene	0.3800 µg/L 7.6% of the EPA limit 5 µg/L	3/41	SYR4	2012–2019
Barium	191 µg/L 9.6% of the EPA limit 2000 µg/L	1/1	SYR4	2017
Di(2-ethylhexyl) Phthalate	1.6 µg/L 27% of the EPA limit 6 µg/L	1/16	SYR4	2012–2018

78 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebEthylene DibromideEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaOxamylPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneO-DichlorobenzeneP-Dichlorobenzene

Utility contact

Phone: 9529282840
Email: [email protected]

Frequently asked questions about Saint Louis Park

Is Saint Louis Park tap water safe to drink?

EPA monitoring detected 23 contaminants in Saint Louis Park'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 Saint Louis Park's water?

EPA monitoring detected Copper, Chloroform, Bromodichloromethane, Lead, Nitrate-Nitrite, and others. The full list with the level and data source for each is above.

How many people does Saint Louis Park serve?

Saint Louis Park reports serving 50,010 people in Minnesota, per its EPA record.

Has Saint Louis Park had any water quality violations?

The EPA has 14 violations on file for Saint Louis Park, of which 14 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.