Utility-reported hardness
Unavailable
Ask your provider or test your tap
Local water dashboard
Official source aggregationWater quality in Cedar Rapids, IA 52404
Regional hardness evidence, possible serving systems, EPA compliance history, and the measurements that are—and are not—available for Linn County.
No active health-based violation reported
- Largest possible serving system
- Cedar Rapids Water Department
- Source water
- Groundwater influenced by surface water + Groundwater
- County
- Linn County
- Profile updated
Your tap water
What does the utility report?
Match the utility name to your water bill. These results describe the utility’s water, not a test at your home. A ZIP can include several water systems.
Utility hardness unavailable in this index
Nearby river or groundwater samples cannot tell us the hardness coming out of your tap. Ask your water provider for total hardness as CaCO₃, or test it at home.
Find an official utility report →At a glance
What the current records say
EPA quarter 2026Q2
All possible systems
No active flag
0 active health-based records
Measurements by utility
Each result belongs to a specific system.
Utility match
9 systems
Serves 142,364 people system-wide
Match the name on your water bill
Your utility’s measurements and compliance records
These are possible serving systems. A record for one system does not apply to every home in this ZIP. Confirm your provider before interpreting a measurement or notice. Federal records can lag current utility notices.
EPA snapshot: 2026Q2. Historical window begins Jan 1, 2021.
Cedar Rapids Water Department
IA5715093 · Groundwater influenced by surface water · 142,364 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0.0016 mg/L
- Action level
- 0.015 mg/L
11% of the listed benchmark
Monitoring period: Jan 1, 2025 to Dec 31, 2025
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Yes Five Seasons Cedar Llc
IA5715602 · Groundwater influenced by surface water · 994 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (0)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
No comparable numerical result available
Federal SDWIS data does not provide a usable numerical result and benchmark for this profile. Missing data is not a pass. Check the serving utility's current Consumer Confidence Report.
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Cedar Terrace Mhc
IA5700600 · Groundwater influenced by surface water · 600 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0 mg/L
- Action level
- 0.015 mg/L
0% of the listed benchmark
Monitoring period: Jan 1, 2022 to Dec 31, 2024
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Oak Valley
IA5784311 · Groundwater · 100 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0.002 mg/L
- Action level
- 0.015 mg/L
13% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (14)
| Rule | Status | Period |
|---|---|---|
| Lead and Copper Rule | Resolved | Dec 1, 2025 to Feb 2, 2026 |
| Public Notice | Resolved | Mar 6, 2025 to Aug 4, 2025 |
| Public Notice | Resolved | Oct 22, 2024 to Aug 4, 2025 |
| Nitrate | Resolved | Jul 1, 2024 to Sep 30, 2024 |
| E. COLI | Resolved | Jun 16, 2024 to Jun 27, 2024 |
| Lead and Copper Rule | Resolved | Dec 1, 2022 to Nov 9, 2023 |
| Public Notice | Resolved | Oct 12, 2022 to Jun 30, 2023 |
| Total Haloacetic Acids (HAA5) | Resolved | Aug 1, 2022 to Aug 31, 2022 |
| TTHM | Resolved | Aug 1, 2022 to Aug 31, 2022 |
| Public Notice | Unaddressed | Jul 13, 2022 |
| Consumer Confidence Rule | Resolved | Jul 1, 2022 to Jul 3, 2023 |
| Lead and Copper Rule | Unaddressed | Dec 1, 2019 |
| Public Notice | Unaddressed | Aug 1, 2013 |
| Public Notice | Unaddressed | Jul 1, 2013 |
Midway Water And Lighting
IA5784302 · Groundwater · 72 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0.007 mg/L
- Action level
- 0.015 mg/L
47% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (2)
| Rule | Status | Period |
|---|---|---|
| TTHM | Resolved | Aug 1, 2023 to Aug 31, 2023 |
| Total Haloacetic Acids (HAA5) | Resolved | Aug 1, 2023 to Aug 31, 2023 |
Brittany Estates Homeowners Association
IA5715301 · Groundwater · 72 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0 mg/L
- Action level
- 0.015 mg/L
0% of the listed benchmark
Monitoring period: Jan 1, 2021 to Dec 31, 2023
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Crestwood Acres
IA5784314 · Groundwater · 50 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0.004 mg/L
- Action level
- 0.015 mg/L
27% of the listed benchmark
Monitoring period: Jan 1, 2022 to Dec 31, 2024
Violation history (6)
| Rule | Status | Period |
|---|---|---|
| Lead and Copper Rule | Resolved | Dec 1, 2024 to Feb 2, 2026 |
| Public Notice | Resolved | May 13, 2023 to Jul 3, 2023 |
| Public Notice | Unaddressed | Oct 12, 2022 |
| Consumer Confidence Rule | Unaddressed | Jul 1, 2022 |
| Lead and Copper Rule | Unaddressed | Dec 1, 2021 |
| Lead and Copper Rule | Unaddressed | Dec 1, 2018 |
Four Oaks Family And Childrens Services
IA5715802 · Groundwater · 50 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0 mg/L
- Action level
- 0.015 mg/L
0% of the listed benchmark
Monitoring period: Jan 1, 2021 to Dec 31, 2023
Violation history (1)
| Rule | Status | Period |
|---|---|---|
| Consumer Confidence Rule | Resolved | Jul 1, 2024 to Sep 19, 2024 |
Chestnut Ridge
IA5784312 · Groundwater · 33 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0.001 mg/L
- Action level
- 0.015 mg/L
7% of the listed benchmark
Monitoring period: Jan 1, 2021 to Dec 31, 2023
Violation history (6)
| Rule | Status | Period |
|---|---|---|
| Public Notice | Resolved | May 13, 2023 to Jul 3, 2023 |
| Public Notice | Resolved | Nov 18, 2022 to Jul 3, 2023 |
| Public Notice | Unaddressed | Oct 12, 2022 |
| Public Notice | Unaddressed | Jul 13, 2022 |
| Consumer Confidence Rule | Unaddressed | Jul 1, 2022 |
| Lead and Copper Rule | Unaddressed | Feb 9, 2021 |
Hardness meter
What does nearby environmental evidence show?
295
PPM as CaCO₃
Very Hard
PPM
295
GPG
17.3
Regional environmental evidence
USGS hardness classification scale
295 PPM
Soft
0–60Moderate
61–120Hard
121–180Very hard
181+
0–60Moderate
61–120Hard
121–180Very hard
181+
Parts per million
295
mg/L as CaCO₃ equivalent
Grains per gallon
17.3
1 GPG ≈ 17.1 PPM
How to use regional evidence
These samples describe nearby environmental water. They cannot establish whether your tap water is soft or hard. Use a utility result or a tap test for appliance settings and treatment sizing.
USGS sites used
25
Nearest site
3.5 mi
Observation range
Jun 28, 2016–Mar 3, 2026
Regional evidence confidence
High
Median of the latest source-type-aligned hardness observation at each monitoring site within 25 miles. Nearest monitoring location: 083N07W29AAC 1996NAWQA City of Cedar Rapids (Well).USGS source documentation ↗Evidence tier: Regional environmental evidence. This value is not used as proof of the serving utility's treated-water hardness.
Regional context
Is 52404 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Cedar Rapids median
274 PPM
21 PPM higher6 indexed ZIP readings · Range 272–295 PPM
Iowa median
281 PPM
14 PPM higher443 indexed ZIP readings · Range 101–729.5 PPM
Evidence-first next steps
Confirm the problem before choosing treatment
This profile can help you ask the right question. It cannot select equipment for a property without a current result from the serving utility or the tap.
Confirm the serving system
ZIP boundaries and utility service areas do not perfectly match. Verify the system on a water bill before relying on system-wide records.
Read the current utility report
Use the current Consumer Confidence Report for treated-water results and official notices.
Find an official utility report →Test for the decision you face
Use a tap hardness test before sizing a softener. For health concerns, use a certified laboratory and the correct sampling protocol.
Convert your hardness test result →Nearby indexed reports
More local profiles in Cedar Rapids
Estimates can differ across a city because monitoring locations and associated systems differ.
Frequently asked
Water questions for Cedar Rapids
Is tap water safe in Cedar Rapids?+
EPA ECHO shows no active health-based violation for the associated systems in this reporting snapshot. This does not prove every contaminant is absent; federal records can lag and household plumbing can change tap conditions.
How hard is the water?+
Utility-reported hardness is unavailable in this index. Regional samples do not establish tap-water hardness. Ask your provider or test your tap.
Do I need a water softener?+
Confirm hardness at your tap and consider actual scale or spotting before choosing treatment. Regional environmental values cannot determine whether you need a softener. A softener addresses hardness, not every contaminant.