Tap WaterIndex

← Iowa

Tap water quality report

Coralville Muni Water

EPA monitoring tested this supplier for 86 contaminants and detected 20. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

86
contaminants tested
20
detected
22,318
people served
3
health-based violations
Iowa rankingsLead in IowaPFAS in Iowa
Water source
Ground water
Ownership
Local government
Counties served
Johnson

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.

3
health-based violations
107
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 1991-03-01 → 1991-03-31
MCL Health-based Resolved 1991-03-01 → 1991-03-31
MCL Health-based Resolved 1991-03-01 → 1991-03-31
MON Monitoring Resolved 2018-12-01 → 2018-12-31
MON Monitoring Resolved 2018-12-01 → 2018-12-31
MON Monitoring Resolved 2018-12-01 → 2018-12-31
MON Monitoring Resolved 2018-12-01 → 2018-12-31
MON Monitoring Resolved 2017-02-01 → 2017-02-28
MON Monitoring Resolved 2017-02-01 → 2017-02-28
MON Monitoring Resolved 2017-02-01 → 2017-02-28

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
Copper
180 µg/L 14%
of the EPA limit 1300 µg/L
worst single sample: 240 µg/L
90/90 SYR4 2012–2018
Lead
10 µg/L 67%
of the EPA limit 15 µg/L
worst single sample: 24 µg/L
41/90 SYR4 2012–2018
Bromodichloromethane
15.75 µg/L
No EPA limit set
worst single sample: 22 µg/L
36/36 SYR4 2012–2019
Bromoform
13 µg/L
No EPA limit set
worst single sample: 48 µg/L
36/36 SYR4 2012–2019
Chloroform
8.3 µg/L
No EPA limit set
worst single sample: 14 µg/L
36/36 SYR4 2012–2019
Dibromochloromethane
22 µg/L
No EPA limit set
 36/36 SYR4 2012–2019
TTHM
60 µg/L 75%
of the EPA limit 80 µg/L
worst single sample: 79 µg/L
36/36 SYR4 2012–2019
Dibromoacetic Acid
4 µg/L
No EPA limit set
 32/36 SYR4 2012–2019
Dichloroacetic Acid
2 µg/L
No EPA limit set
worst single sample: 4 µg/L
25/36 SYR4 2012–2019
Nitrate
1200 µg/L 12%
of the EPA limit 10000 µg/L
 14/16 SYR4 2012–2019
Lead
0.0030 mg/L 20%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2024
Total Haloacetic Acids (HAA5)
9.1 µg/L 15%
of the EPA limit 60 µg/L
worst single sample: 10 µg/L
7/36 SYR4 2012–2019
Trichloroacetic Acid
1.8 µg/L
No EPA limit set
worst single sample: 2 µg/L
5/36 SYR4 2012–2019
Monobromoacetic Acid
1.95 µg/L
No EPA limit set
worst single sample: 2 µg/L
2/36 SYR4 2012–2019
Monochloroacetic Acid
2.95 µg/L
No EPA limit set
worst single sample: 3 µg/L
2/36 SYR4 2012–2019
Toluene
1.93 µg/L 0.2%
of the EPA limit 1000 µg/L
worst single sample: 2 µg/L
2/3 SYR4 2014–2017
Lithium
390 µg/L
No EPA limit set
 2/2 UCMR-5 2023
Barium
100 µg/L 5%
of the EPA limit 2000 µg/L
 1/1 SYR4 2012
Combined Radium (-226 And -228)
1 pCi/L 20%
of the EPA limit 5 pCi/L
 1/1 SYR4 2018
Fluoride
780 µg/L 20%
of the EPA limit 4000 µg/L
 1/1 SYR4 2012
66 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBenzeneChlorobenzeneCadmiumCarbon TetrachlorideChromiumDichloromethaneDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDiquatEthylbenzeneGlyphosateHfpo-DaLassoMercuryNetfosaaNfdhaNmefosaaPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
CORALVILLE MUNI WATER SYSTEM
Phone
319-248-1770
Email
[email protected]

Frequently asked questions about Coralville Muni Water

Is Coralville Muni Water tap water safe to drink?

EPA monitoring detected 20 contaminants in Coralville Muni 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 Coralville Muni Water's water?

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

How many people does Coralville Muni Water serve?

Coralville Muni Water reports serving 22,318 people in Iowa, per its EPA record.

Has Coralville Muni Water had any water quality violations?

The EPA has 107 violations on file for Coralville Muni Water, of which 3 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.