Is Lac Du Flambeau, WI Tap Water Safe? Quality & Contaminants

What was found in Lac Du Flambeau'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.

Contaminant	Level vs EPA limit	Suppliers	Source
Nitrate	3995 µg/L 40% of the EPA limit 10000 µg/L Main supplier: LAC DU FLAMBEAU · 2,962 people · 2019	1/2	SYR4
Fluoride	670 µg/L 17% of the EPA limit 4000 µg/L Main supplier: LAC DU FLAMBEAU · 2,962 people · 2018	1/2	SYR4
Copper	140 µg/L 11% of the EPA limit 1300 µg/L Main supplier: LAC DU FLAMBEAU · 2,962 people · 2019	1/2	SYR4
TTHM	15.4 µg/L 19% of the EPA limit 80 µg/L Main supplier: LAC DU FLAMBEAU · 2,962 people · 2019	1/2	SYR4
Barium	12.8 µg/L 0.6% of the EPA limit 2000 µg/L Main supplier: LAC DU FLAMBEAU · 2,962 people · 2018	1/2	SYR4
Cyanide	7 µg/L 3.5% of the EPA limit 200 µg/L Main supplier: LAC DU FLAMBEAU · 2,962 people · 2018	1/2	SYR4
Total Haloacetic Acids (HAA5)	6.835 µg/L 11% of the EPA limit 60 µg/L Main supplier: LAC DU FLAMBEAU · 2,962 people · 2019	1/2	SYR4
Lead	5.055 µg/L 34% of the EPA limit 15 µg/L Main supplier: LAC DU FLAMBEAU · 2,962 people · 2019	1/2	SYR4
Arsenic	1.49 µg/L 15% of the EPA limit 10 µg/L Main supplier: LAC DU FLAMBEAU · 2,962 people · 2018	1/2	SYR4
Chromium	1.1 µg/L 1.1% of the EPA limit 100 µg/L Main supplier: LAC DU FLAMBEAU · 2,962 people · 2018	1/2	SYR4
Mercury	0.8000 µg/L 40% of the EPA limit 2 µg/L Main supplier: LAC DU FLAMBEAU · 2,962 people · 2018	1/2	SYR4
Cadmium	0.6400 µg/L 13% of the EPA limit 5 µg/L Main supplier: LAC DU FLAMBEAU · 2,962 people · 2018	1/2	SYR4
Di(2-ethylhexyl) Phthalate	0.6400 µg/L 11% of the EPA limit 6 µg/L Main supplier: LAC DU FLAMBEAU · 2,962 people · 2019	1/2	SYR4
PFBS	0.0082 µg/L No EPA limit set Main supplier: LAC DU FLAMBEAU · 2,962 people · 2025	1/2	UCMR-5
Lead	0.00069 mg/L 4.6% of the EPA limit 0.0150 mg/L Main supplier: LAC DU FLAMBEAU · 2,962 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 Lac Du Flambeau

Supplier	Population served
LAC DU FLAMBEAU	2,962
FOREST EDGE APARTMENTS LLC	100

Frequently asked questions about Lac Du Flambeau tap water

Is Lac Du Flambeau tap water safe to drink?

EPA testing detected 15 contaminants in the water serving Lac Du Flambeau. 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 Lac Du Flambeau?

2 public water suppliers report drinking-water monitoring for Lac Du Flambeau, Wisconsin to the EPA. Each is listed above with its population served.

What contaminants are in Lac Du Flambeau's water?

The contaminants EPA monitoring detected in Lac Du Flambeau include Nitrate, Fluoride, Copper, TTHM, Barium. 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.