Drinking water quality · 2024
· Verified
· PWSID IA5715093
What's in Cedar Rapids, IA tap water
Only 9 of 27 core regulated contaminants were reported for Cedar Rapids, IA. What was measured is not clean — but most of the picture is missing.
- !1 contaminant at or above a federal limit — worst is Turbidity at 100.0x
- !2 contaminants within 20% of a limit
- !9 of 27 core regulated contaminants reported — 18 never appear in this report
- ✓No open federal violations
+How this score is calculated
Every system starts at 100. Points come off for measured levels, for the federal violation record, and for how much of the core regulated set the utility actually reported. All three inputs are the utility's own published numbers and EPA's own records.
- −36 contaminants at or above a federal limit
- −8 contaminants within 20% of a limit
- −0 open health-based violations
- −0 open monitoring / reporting violations
- −0 health-based violations resolved in the last 5 years
- −16 core regulated contaminants never reported (9/27)
A 90–100 · B 80–89 · C 70–79 · D 60–69 · F below 60. A system reporting under a third of the core set is capped at C however clean its numbers look — a short report is not a clean bill of health.
Full grading methodology, constant for constant →What to worry about
- Turbidity100.0× the federal limit99.99 NTU · limit 1 NTU
High turbidity can shelter microbes from disinfection; the EPA enforces it through a treatment-technique standard.
higher than 95% of U.S. systems
- Chlorine Total95% of the federal limit1.9–3.8 mg/L · limit 4 mg/L
higher than 90% of U.S. systems
- Nitrate90% of the federal limit0–9 mg/L · limit 10 mg/L
Levels above the federal limit can cause 'blue baby syndrome,' a serious oxygen-transport condition in infants.
higher than 95% of U.S. systems
+14 contaminants were measured and came in below the limitShow all
| Contaminant | Measured | Federal limit |
|---|---|---|
| Fluoride | 0.1–0.8 mg/L | 4 mg/L |
| Lead | 0.0026 mg/L | 0.015 mg/L |
| Atrazine | 0–0.5 ug/L | 3 ug/L |
| Arsenic | 0–1.4 ug/L | 10 ug/L |
| Nitrite | 0–0.1 mg/L | 1 mg/L |
| Copper | 0.071 mg/L | 1.3 mg/L |
| TTHM | 0–3.9 ug/L | 80 ug/L |
| Iron | 410 | — |
| Sodium | 16.4 | — |
| Zinc | 9.8 mg/L | — |
| Escherichia coli (E. coli) | Not detected | — |
| Total Coliform | 16 | — |
| TOC | 1.6–3.5 | — |
| Radon | 297 | — |
What this report doesn't tell you
18 of the 27 contaminants a community water system normally reports do not appear anywhere in Cedar Rapids, IA's data. Absent is not the same as absent-from-the-water — it means nobody published a number.
+Full detail: PFAS testing, water source, historical monitoring, and the federal violation record
Where your water comes from · EPA SDWIS
Cedar Rapids, IA's drinking water comes from ground water, drawn from 54 sources.
Source
- SEMINOLE · 20
- EAST · 19
- WEST · 8
- RANNEY · 7
Treatment
- J AVENUE PLANT #1
- NW PLANT #2
Distribution
Compliance history
Federal Safe Drinking Water Act violation & enforcement records (EPA SDWIS). A violation is a regulatory determination by the state or EPA — separate from the measured levels above.
- Treatment technique violationHealth-based2 violations on record · most recent Dec 2009resolved
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗