Tap WaterIndex

← Iowa

Tap water quality report

Star Water

EPA monitoring tested this supplier for 47 contaminants and detected 6. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

47
contaminants tested
6
detected
110
people served
0
health-based violations
Iowa rankingsLead in IowaPFAS in Iowa
Water source
Ground water
Ownership
Private
Counties served
Dubuque

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.

0
health-based violations
4
violations on file
0
still open
ViolationTypeStatusPeriod
MON Monitoring Resolved 2024-09-01 → 2024-09-30
MON Monitoring Resolved 2024-09-01 → 2024-09-30
MON Monitoring Resolved 2024-09-01 → 2024-09-30
MON Monitoring Resolved 2024-09-01 → 2024-09-30

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2023
Copper
300 µg/L 23%
of the EPA limit 1300 µg/L
worst single sample: 340 µg/L
9/10 SYR4 2014–2017
Nitrate
1800 µg/L 18%
of the EPA limit 10000 µg/L
 4/18 SYR4 2012–2019
Lead
2.9 µg/L 19%
of the EPA limit 15 µg/L
worst single sample: 3 µg/L
3/10 SYR4 2014–2017
Combined Radium (-226 And -228)
2 pCi/L 40%
of the EPA limit 5 pCi/L
 1/1 SYR4 2014
Fluoride
540 µg/L 14%
of the EPA limit 4000 µg/L
 1/1 SYR4 2016
41 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, TotalArsenicAtrazineBariumBenzeneBenzo(A)PyreneChlorobenzeneCadmiumCarbon TetrachlorideChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylbenzeneLassoMercuryPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
STAR WATER
Phone
563-590-5672
Email
[email protected]

Frequently asked questions about Star Water

Is Star Water tap water safe to drink?

EPA monitoring detected 6 contaminants in Star Water'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 Star Water's water?

EPA monitoring detected Lead, Copper, Nitrate, Lead, Combined Radium (-226 And -228), and others. The full list with the level and data source for each is above.

How many people does Star Water serve?

Star Water reports serving 110 people in Iowa, per its EPA record.

Has Star Water had any water quality violations?

The EPA has 4 violations on file for Star Water, of which 0 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.