Public Water System: Cedar Rapids Water Department's tap water quality report is the compilation of data collected from federal, state, and local government agencies, most prominently the EPA. We strive to populate the report with the latest data concerning water contaminants, lead and copper levels, and water quality violations. We only collect drinking water data from public water systems.

PWS Service Information
PWS ID: IA5715093
Type: Community water system
EPA Region: 07
Primary Service Area: Municipality
Primary Source: Groundwater under influence of surface water
Population Served: 128,201
Contact Information
761 J AVE NE

This public water system services 8 zip codes in 1 municipality in 1 county.

Summary Results

A summary view of the the times a water contaminant was tested and found to exceed the level set by the EPA (the MCL).

We couldn't find any records of contaminants exceeding the regulated limits in your water.

Other Water Contaminants Tested

The following contaminants were tested and within national EPA guidelines.

The last mile of pipe makes a big difference, learn more about testing your water.

We couldn't find any records of contaminants in your water.

Lead and Copper Data

Lead and copper are recorded separately from other contaminants because of the Lead and Copper Rule. As with all other results, these are the findings at the water supply. Lead and copper can be — and often are — added to drinking water in between the water facility and a tap.

Sample ID Contaminant Sampling Start Date Sampling End Date Result
IA42317 lead 2016-01-01 2018-12-31 0.0105mg/L
IA43209 lead 2015-01-01 2017-12-31 0.0029mg/L
IA42207 lead 2014-01-01 2016-12-31 0.0105mg/L
IA39567 lead 2013-01-01 2015-12-31 0.00161mg/L
IA43003 lead 2012-01-01 2014-12-31 0.0016mg/L
IA43002 lead 2011-01-01 2013-12-31 0.00161mg/L
IA38593 lead 2010-01-01 2012-12-31 0mg/L
IA37467 lead 2009-01-01 2011-12-31 0.0019mg/L
IA36761 lead 2008-01-01 2010-12-31 0.0042mg/L
IA32285 lead 2007-01-01 2009-12-31 0.006mg/L
IA32284 lead 2006-01-01 2008-12-31 0.004mg/L


Known violations of the Safe Drinking Water Act as recorded by the EPA.

Compliance Dates Rule Violation Type Contaminant Name Status
2017-09-01 - 2017-09-30 Revised Total Coliform Rule Monitoring, Routine (RTCR) Revised Total Coliform Rule Known
2009-12-01 - 2009-12-31 Long Term 1 Enhanced Surface Water Treatment Rule Single Turbidity Exceed (Enhanced SWTR) Interim Enhanced Surfsce Water Treatment Rule Returned to Compliance
2007-03-01 - 2007-03-31 Long Term 1 Enhanced Surface Water Treatment Rule Single Turbidity Exceed (Enhanced SWTR) Interim Enhanced Surfsce Water Treatment Rule Returned to Compliance
1992-01-01 - 1994-12-31 Inorganic Chemicals Monitoring, Regular Antimony, Total Returned to Compliance
1986-10-01 - 1989-09-30 Nitrates Monitoring, Regular Nitrate Returned to Compliance
1986-10-01 - 1989-09-30 Inorganic Chemicals Monitoring, Regular Fluoride Returned to Compliance
1991-10-01 - N/A Lead and Copper Rule Follow-up Or Routine LCR Tap M/R Lead and Copper Rule Returned to Compliance

What My Water Data Means

Water data isn't always easy to interpret, but by following the links on this page you should be able to have most of your questions answered. By clicking the name of a water contaminant or secondary substance you can learn about that specific substance. Ultimately this page should give you some insight towards learning if your water is safe, what water filter you should buy (if any), and how well your local water compares against other sources.


The origin of's water data is explained on our Data Sources page.

Why Is My Water Data Not More Recent?

The recency of the data for your ZIP code depends on the last your water source was tested, by a federal, state, or local agency. More information about the timing can be determined by learning about the dataset in question and seeing how often the EPA (other another governing body) mandated testing.