Cave In Rock, IL Water Safety: 83/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Cave In Rock's tap water quality puts it in IL's upper tier — health-based violations are rare and the compliance record is consistently above average.
How Cave In Rock Compares
Data: EPA SDWIS Last verified: 2026-06-03
Cave In Rock Water: The Quick Version
- Average lead level: 0.0008 mg/L.
- Homes built before 1986: 70% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 15.74 — above typical levels.
Water Systems Serving Cave In Rock
One utility dominates residential water service in Cave In Rock, IL — out of 1 system in federal records.
Overview
We track water quality and home safety data for 1 ZIP code in Cave In Rock, Illinois, covering 1 community water system serving approximately 775 people.
No EPA violations recorded across any ZIP codes in Cave In Rock — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Cave In Rock: B (83/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Cave In Rock water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0008 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 62919 | B | Cave-in-rock | 228 |
All ZIP Codes in Cave In Rock
- 62919 [B]
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
CDC Health Data for Cave In Rock
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
How Old Is Cave In Rock's Housing Stock?
With 70% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
The lead that enters tap water in older homes often comes not from the municipal supply but from the home's own plumbing — from solder used in copper joints before the 1986 federal ban, or from lead pipes installed before 1970. In Cave In Rock, where the median build year is 1976, these older materials are widespread. More than half the residential stock predates the 1986 solder ban, and a significant fraction predates 1970 as well. For residents in those homes, the city-wide water quality picture is a less relevant frame than the specific materials inside their own walls and under their own street.
Over half of homes in Cave In Rock were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
Cave In Rock: Remediation Cost in Perspective
Low proportionality — that's the Cave In Rock picture when remediation costs are placed against typical home equity.
Remediation costs in Cave In Rock are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 19% below the Illinois average.
Protecting Children from Lead in Cave In Rock
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Although utility-side compliance with federal Lead and Copper requirements remains the system reference, that compliance does not extend down into interior plumbing. With 70% of Cave In Rock stock built before the solder ban and aggregate readings at or beyond the action mark, a household-level sample becomes the practical way to close that information gap.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Cave In Rock, IL