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Tap water quality report

Carroll Municipal Water Supply

EPA monitoring tested this supplier for 91 contaminants and detected 14. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

91
contaminants tested
14
detected
10,184
people served
0
health-based violations
Iowa rankingsLead in IowaPFAS in Iowa
Water source
Ground water
Ownership
Local government
Counties served
Carroll

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
5
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 1992-07-01
MR Monitoring Resolved 1992-07-01
MR Monitoring Resolved 1992-07-01
MR Monitoring Resolved 1992-07-01
MR Monitoring Resolved 1992-07-01

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
Copper
1060 µg/L 82%
of the EPA limit 1300 µg/L
 60/60 SYR4 2014–2017
Lead
9.9 µg/L 66%
of the EPA limit 15 µg/L
 33/60 SYR4 2014–2017
Chloroform
1.62 µg/L
No EPA limit set
 30/31 SYR4 2012–2019
Lead
0.0080 mg/L 53%
of the EPA limit 0.0150 mg/L
 18/18 LCR 2023
Monochloroacetic Acid
6.98 µg/L
No EPA limit set
 18/31 SYR4 2012–2019
Trichloroacetic Acid
0.9100 µg/L
No EPA limit set
 13/31 SYR4 2012–2019
Dichloroacetic Acid
2.78 µg/L
No EPA limit set
 12/31 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
8.79 µg/L 15%
of the EPA limit 60 µg/L
 8/31 SYR4 2012–2019
Arsenic
1.8 µg/L 18%
of the EPA limit 10 µg/L
 2/3 SYR4 2013–2019
Nitrite
200 µg/L 20%
of the EPA limit 1000 µg/L
 2/6 SYR4 2019
Lithium
53 µg/L
No EPA limit set
 2/2 UCMR-5 2025
Barium
157 µg/L 7.9%
of the EPA limit 2000 µg/L
 1/1 SYR4 2013
Combined Radium (-226 And -228)
1.13 pCi/L 23%
of the EPA limit 5 pCi/L
 1/2 SYR4 2012–2018
Fluoride
1100 µg/L 28%
of the EPA limit 4000 µg/L
 1/1 SYR4 2013
77 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAtrazineBenzeneBenzo(A)PyreneBromodichloromethaneBromoformChlorobenzeneCadmiumCarbon TetrachlorideChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDinosebDiquatEthylbenzeneGlyphosateHfpo-DaLassoMercuryMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitratePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
CARROLL MUNICIPAL WATER SUPPLY
Phone
712-792-6753
Email
water@cityofcarroll.com

Frequently asked questions about Carroll Municipal Water Supply

Is Carroll Municipal Water Supply tap water safe to drink?

EPA monitoring detected 14 contaminants in Carroll Municipal Water Supply'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 Carroll Municipal Water Supply's water?

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

How many people does Carroll Municipal Water Supply serve?

Carroll Municipal Water Supply reports serving 10,184 people in Iowa, per its EPA record.

Has Carroll Municipal Water Supply had any water quality violations?

The EPA has 5 violations on file for Carroll Municipal Water Supply, 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.