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Tap water quality report

Cedar Rapids Water Department

EPA monitoring tested this supplier for 94 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

94
contaminants tested
17
detected
142,364
people served
12
health-based violations
Iowa rankingsLead in IowaPFAS in Iowa
Water source
Ground water under surface influence
Ownership
Local government
Counties served
Linn

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.

12
health-based violations
29
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2009-12-01 → 2009-12-31
TT Health-based Resolved 2009-12-01 → 2009-12-31
TT Health-based Resolved 2009-12-01 → 2009-12-31
TT Health-based Resolved 2009-12-01 → 2009-12-31
TT Health-based Resolved 2009-12-01 → 2009-12-31
TT Health-based Resolved 2009-12-01 → 2009-12-31
TT Health-based Resolved 2009-12-01 → 2009-12-31
TT Health-based Resolved 2009-12-01 → 2009-12-31
TT Health-based Resolved 2007-03-01 → 2007-03-31
TT Health-based Resolved 2007-03-01 → 2007-03-31

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
Nitrate
6470 µg/L 65%
of the EPA limit 10000 µg/L
worst single sample: 8230 µg/L
1604/1612 SYR4 2012–2019
Copper
78.175 µg/L 6%
of the EPA limit 1300 µg/L
worst single sample: 235 µg/L
410/420 SYR4 2012–2019
Lead
10.349 µg/L 69%
of the EPA limit 15 µg/L
worst single sample: 128 µg/L
363/421 SYR4 2012–2019
Dichloroacetic Acid
4 µg/L
No EPA limit set
worst single sample: 6 µg/L
186/188 SYR4 2012–2019
Chloroform
2.7 µg/L
No EPA limit set
worst single sample: 4 µg/L
178/188 SYR4 2012–2019
Arsenic
1.81 µg/L 18%
of the EPA limit 10 µg/L
worst single sample: 5.89 µg/L
151/221 SYR4 2012–2019
Atrazine
0.5000 µg/L 17%
of the EPA limit 3 µg/L
worst single sample: 0.7000 µg/L
71/208 SYR4 2012–2019
TTHM
4.1 µg/L 5.1%
of the EPA limit 80 µg/L
worst single sample: 5 µg/L
51/188 SYR4 2012–2019
Lead
0.0016 mg/L 11%
of the EPA limit 0.0150 mg/L
 31/31 LCR 2025
Bromodichloromethane
1 µg/L
No EPA limit set
 28/188 SYR4 2012–2019
Fluoride
742 µg/L 19%
of the EPA limit 4000 µg/L
worst single sample: 750 µg/L
17/18 SYR4 2012–2019
Monochloroacetic Acid
2.9 µg/L
No EPA limit set
worst single sample: 3 µg/L
3/188 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
6.9 µg/L 12%
of the EPA limit 60 µg/L
worst single sample: 7 µg/L
3/188 SYR4 2012–2019
Nitrite
40 µg/L 4%
of the EPA limit 1000 µg/L
 2/20 SYR4 2012–2019
Trichloroacetic Acid
1 µg/L
No EPA limit set
 2/188 SYR4 2012–2019
Combined Radium (-226 And -228)
1.1 pCi/L 22%
of the EPA limit 5 pCi/L
 1/18 SYR4 2012–2019
Toluene
0.5000 µg/L 0.1%
of the EPA limit 1000 µg/L
 1/50 SYR4 2012–2019
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, TotalAsbestosBariumBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbon TetrachlorideChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDinosebDiquatEthylbenzeneGlyphosateHfpo-DaLassoMercuryMonobromoacetic AcidNetfosaaNfdhaNmefosaaPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
CEDAR RAPIDS WATER DEPARTMENT
Phone
319-286-5973
Email
[email protected]

Frequently asked questions about Cedar Rapids Water Department

Is Cedar Rapids Water Department tap water safe to drink?

EPA monitoring detected 17 contaminants in Cedar Rapids Water Department'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 Cedar Rapids Water Department's water?

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

How many people does Cedar Rapids Water Department serve?

Cedar Rapids Water Department reports serving 142,364 people in Iowa, per its EPA record.

Has Cedar Rapids Water Department had any water quality violations?

The EPA has 29 violations on file for Cedar Rapids Water Department, of which 12 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.