Is Cromwell Tap Water Safe? Quality Report

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

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	1989-07-01 → 1990-06-30
MCL	Health-based	Resolved	1989-07-01 → 1990-06-30
MCL	Health-based	Resolved	1989-07-01 → 1990-06-30
MCL	Health-based	Resolved	1989-07-01 → 1990-06-30
MCL	Health-based	Resolved	1989-07-01 → 1990-06-30
MR	Monitoring	Archived	2004-07-01 → 2004-09-30
MR	Monitoring	Archived	2004-07-01 → 2004-09-30
MR	Monitoring	Archived	2004-07-01 → 2004-09-30
MR	Monitoring	Archived	2004-07-01 → 2004-09-30
MR	Monitoring	Archived	2004-07-01 → 2004-09-30

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
Chloroform	71.2 µg/L No EPA limit set worst single sample: 100 µg/L	48/49	SYR4	2012–2019
Dichloroacetic Acid	23.15 µg/L No EPA limit set worst single sample: 26 µg/L	38/45	SYR4	2012–2019
Trichloroacetic Acid	40.2 µg/L No EPA limit set worst single sample: 48 µg/L	35/45	SYR4	2012–2019
Fluoride	1200 µg/L 30% of the EPA limit 4000 µg/L worst single sample: 1700 µg/L	34/34	SYR4	2012–2019
Bromodichloromethane	3.64 µg/L No EPA limit set worst single sample: 4 µg/L	30/49	SYR4	2012–2019
Copper	549.85 µg/L 42% of the EPA limit 1300 µg/L worst single sample: 895 µg/L	10/10	SYR4	2014–2017
Lead	1.72 µg/L 11% of the EPA limit 15 µg/L worst single sample: 1.8 µg/L	5/10	SYR4	2014–2017
Monochloroacetic Acid	2.6 µg/L No EPA limit set	4/45	SYR4	2012–2019
Barium	61.6 µg/L 3.1% of the EPA limit 2000 µg/L	1/1	SYR4	2012
Carbon Tetrachloride	0.2200 µg/L 4.4% of the EPA limit 5 µg/L	1/3	SYR4	2012–2018
Lead	0.0060 mg/L 40% of the EPA limit 0.0150 mg/L	1/1	LCR	2023

60 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbofuranChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDinosebEthylene DibromideEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNitrate-NitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Phone: 2186443570
Email: [email protected]

Frequently asked questions about Cromwell

Is Cromwell tap water safe to drink?

EPA monitoring detected 11 contaminants in Cromwell'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 Cromwell's water?

EPA monitoring detected Chloroform, Dichloroacetic Acid, Trichloroacetic Acid, Fluoride, Bromodichloromethane, and others. The full list with the level and data source for each is above.

How many people does Cromwell serve?

Cromwell reports serving 250 people in Minnesota, per its EPA record.

Has Cromwell had any water quality violations?

The EPA has 10 violations on file for Cromwell, of which 5 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.