Tap WaterIndex

Tap water quality report

Island Estates

EPA monitoring tested this supplier for 62 contaminants and detected 12. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

62
contaminants tested
12
detected
50
people served
1
health-based violations
Water source
Ground water
Ownership
Private
Counties served
La Crosse

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.

1
health-based violations
91
violations on file
2
still open
ViolationTypeStatusPeriod
TT Health-based Unaddressed 2024-10-17
Other Monitoring Resolved 2025-10-30
Other Monitoring Resolved 2025-10-30
Other Monitoring Resolved 2025-07-01
Other Monitoring Resolved 2025-07-01
Other Monitoring Resolved 2025-07-01
Other Monitoring Resolved 2025-07-01
Other Monitoring Unaddressed 2024-10-17
Other Monitoring Resolved 2024-07-01
Other Monitoring Resolved 2024-07-01

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
3260 µg/L 33%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2023
Arsenic
4 µg/L 40%
of the EPA limit 10 µg/L
 3/3 SYR4 2012–2018
Barium
111 µg/L 5.6%
of the EPA limit 2000 µg/L
 3/3 SYR4 2012–2018
Nitrate-Nitrite
3250 µg/L 33%
of the EPA limit 10000 µg/L
 3/3 SYR4 2012–2018
Copper
115 µg/L 8.8%
of the EPA limit 1300 µg/L
 2/10 SYR4 2014–2017
Fluoride
70 µg/L 1.8%
of the EPA limit 4000 µg/L
 2/3 SYR4 2012–2018
Nitrite
33 µg/L 3.3%
of the EPA limit 1000 µg/L
 2/3 SYR4 2012–2018
Combined Radium (-226 And -228)
1.64 pCi/L 33%
of the EPA limit 5 pCi/L
 1/1 SYR4 2015
Gross Alpha, Excl. Radon And U
1 pCi/L 6.7%
of the EPA limit 15 pCi/L
 1/1 SYR4 2015
Lead
3.37 µg/L 22%
of the EPA limit 15 µg/L
 1/10 SYR4 2014–2017
Selenium
0.7000 µg/L 1.4%
of the EPA limit 50 µg/L
 1/3 SYR4 2012–2018
50 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAtrazineBhc-GammaBenzeneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDinosebDiquatEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Frequently asked questions about Island Estates

Is Island Estates tap water safe to drink?

EPA monitoring detected 12 contaminants in Island Estates'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 Island Estates's water?

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

How many people does Island Estates serve?

Island Estates reports serving 50 people, per its EPA record.

Has Island Estates had any water quality violations?

The EPA has 91 violations on file for Island Estates, of which 1 is health-based (a contaminant limit or required treatment was breached) and 2 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.