CITY REPORT IL

Gridley, IL: High Radon Risk - Home Safety Score unavailable

1 ZIP code · 1 water system · Updated

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
0
ZIPs with Violations
Zone 1
Radon Risk (High)
$155K
Median Home Value
$1,500
Est. Remediation (1.0% of home value)

Gridley Water: The Quick Version

  • Average lead level: 0.0035 mg/L.
  • Homes built before 1986: 73% - older plumbing may contain lead solder.
  • Estimated remediation: $1,500 per household.
  • CDC health risk index: 11.4.

Water Systems Serving Gridley

Because residential water in Gridley, IL flows primarily through a single utility, infrastructure decisions, rate-setting, and EPA compliance are all managed within one organizational structure. Federal records show 1 system active in the area, but one provider dominates the service landscape for most homes and apartments.

Overview

We track home safety data for 1 ZIP code in Gridley, Illinois, covering 1 community water system serving approximately 1,917 people. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.

Water Sources

Gridley water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0035 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 1 (High 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
61744 El Paso 2,812

All ZIP Codes in Gridley

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

CDC Health Data for Gridley

10.3%
Asthma (US: 9.8%)
9.5%
Diabetes (US: 10.4%)
16.7%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 10.3% ↑
Diabetes 9.5% ↓
Mental Health 16.7% ↑

Vertical line = national average. Above national · Below national

How Old Is Gridley's Housing Stock?

1964
Median Build Year
73%
Built Before 1986
40%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 73% 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

Lead solder was standard in copper plumbing until federally banned in 1986; lead pipes were common in service lines pre-1970. Gridley's median build year of 1964 reflects a housing stock where these older materials are a pervasive feature - not a rare legacy - of the residential plumbing landscape.

1964
Median Year Built
73%
Pre-1986 (Lead Paint Risk)
40%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (40%) 1970–1986 (33%) Post-1986 (27%)

Over half of homes in Gridley 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.

Gridley: Remediation Cost in Perspective

The household financial picture for Gridley homeowners is proportionally favorable - addressing documented issues claims a small slice of equity, and the cost-to-value ratio puts this area well within the manageable tier.

Median Home Value
$154,500
Est. Remediation
$1,500
Remediation as % of home value 1.0%

Remediation costs in Gridley are relatively low compared to home values. The $950–$2,100 estimated range is a small fraction of median property value. Home values are 16% below the Illinois average.

Protecting Children from Lead in Gridley

73%
Homes Built Before 1986
0.0035
mg/L Avg Lead (Limit: 0.015)

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.

After the federal action removing lead-bearing solder from new plumbing took effect, building practice shifted - but 73% of the Gridley inventory predates that line. With aggregate samples near or beyond 0.015 mg/L, an in-home check moves out of the optional column into the standard list.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Frequently Asked Questions

Does Gridley water have lead?
The average 90th-percentile lead level in Gridley is 0.0035 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home - testing is recommended especially in older properties.
How many water systems serve Gridley?
Gridley is served by 1 public water system across 1 ZIP code, serving approximately 1,917 people.
How much does it cost to fix water issues in Gridley?
Estimated remediation costs in Gridley average $1,500 per household, ranging from $950 to $2,100. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesIllinois → Gridley, IL

How to cite this page

APA ZipCheckup. (2026). Gridley, IL: High Radon Risk - Home Safety Score unavailable. https://zipcheckup.com/cities/il/gridley/
BibTeX
@misc{zipcheckup-cities-il-gridley,
  author = {{ZipCheckup}},
  title  = {{Gridley, IL: High Radon Risk - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/il/gridley/}
}

Page version: August 2026.

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