IL0316000
City of Chicago
Chicago, IL · 2,721,308 people served · Lake Michigan
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Path score 67
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Official 90th percentile is example data until the federal file is ingested.
How to get a test here
| Program | Pays for a kit? | Who can use it |
|---|---|---|
| LCRI consumer-requested tap sampling | Yes | Anyone served by a lead, galvanized-requiring-replacement, or unknown service line |
| Local or state health department testing | Yes | Households, often with priority for children or pregnant people |
| WIIN school and child-care lead testing | Yes | Schools and licensed child-care programs, via the state |
Household and official lead samples
| Date | Source | Block group | Lead (ppb) |
|---|---|---|---|
| 2026-06-20 | screening | 17031081400 | 16 |
| 2026-07-02 | lab | 17031832000 | 3.2 |
| 2026-07-08 | lab | 17031070100 | 12.4 |
| 2026-07-11 | lab | 17031320100 | 18 |
| 2026-07-15 | official | IL0316000 | 5 |
| 2026-07-18 | lab | 17031081400 | 6.1 |
| 2026-07-24 | lab | 17031420100 | 22.7 |
| 2026-08-01 | lab | 17031240900 | 9.4 |
| 2026-08-06 | lab | 17031380100 | 31.5 |
| 2026-08-14 | lab | 17031420600 | 47 |
| 2026-08-15 | official | IL0316000 | 7.4 |
| 2026-08-19 | lab | 17031070100 | 14.8 |
| 2026-08-27 | lab | 17031833000 | 8.2 |
What EPA shows today
The daily EPA pull has not landed for this system yet.
What crossed a bar
2026-07-08
A certified kitchen tap in Chicago tested at or above 10 ppb
12.4 ppb on 2026-07-08. This is a household lab result, not a utility finding.
2026-08-19
6 certified kitchen taps in Chicago were at or above 10 ppb
Those household tests sit inside 90 days. The highest was 47 ppb. This is not a utility exceedance.
2026-08-27
Chicago missed a required lead-pipe notice
Federal rule required notice to about 900,000 people by Nov 2024.
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