IL0316000
City of Chicago
Chicago, IL · 2,721,308 served · Lake Michigan
leadNotice failed
Notice record
Federal rule required notice to about 900,000 people by Nov 2024. WBEZ reported ~7% sent by July 2025. The 2025 CCR later recorded a certification failure for 2024 service-line notices.
7.4
Seeded official P90 (ppb)
10
Certified household tests
13.6
Household median (ppb)
47
Household max (ppb)
Seeded official 90th-percentile — replace with SDWIS ingest
How to get a test here
Open the funding waterfall| 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 |
| DWSRF set-asides (non-routine sampling) | No | State programs and public water systems — not individual residents |
| HUD Lead Hazard Reduction / Healthy Homes | Yes | Low-income pre-1978 housing treated by a city, county, or tribal grantee |
| CDC Childhood Lead Poisoning Prevention | Yes | Health departments and bona fide agents; families of children at high risk or with an elevated blood-lead level |
| Medicaid EPSDT environmental follow-up | Yes | Medicaid-enrolled children; blood-lead tests at 12 and 24 months |
| Title V Maternal and Child Health Block Grant | Yes | State MCH programs; pregnant people, infants, and children, especially low-income |
| Head Start / Early Head Start lead-in-water duty | Yes | Head Start facilities; every fixture used for drinking, cooking, or formula |
| Certified lab kit (resident or sponsor) | Yes | Anyone, including renters the utility never samples |
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 |