Mc Nabb, IL: High Radon Risk — 53/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Systems across Mc Nabb show elevated violation counts against IL benchmarks — the low safety grade reflects that ongoing compliance pattern.
How Mc Nabb Compares
Data: EPA SDWIS Last verified: 2026-06-03
Mc Nabb Water: The Quick Version
- Homes built before 1986: 66% — older plumbing may contain lead solder.
- Estimated remediation: $2,400 per household.
- CDC health risk index: 13.62 — above typical levels.
Water Systems Serving Mc Nabb
For most households in Mc Nabb, IL, tap water comes from one provider — the utility that controls the local distribution system out of 1 tracked in federal record.
Overview
We track water quality and home safety data for 1 ZIP code in Mc Nabb, Illinois, covering 1 community water system serving approximately 316 people.
No EPA violations recorded across any ZIP codes in Mc Nabb — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Mc Nabb: D (53/100)
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
Mc Nabb water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Mc Nabb
- 0 ZIP codes 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 |
|---|---|---|---|
| 61335 | D | MAGNOLIA | 244 |
All ZIP Codes in Mc Nabb
- 61335 [D]
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 Mc Nabb
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 Mc Nabb's Housing Stock?
With 66% 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
Viewed through the lens of construction era, Mc Nabb is predominantly an older city — a median build year of 1973 puts most of the residential inventory in the range where pre-1986 plumbing materials were the standard.
Over half of homes in Mc Nabb 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.
Mc Nabb: Remediation Cost in Perspective
Is remediation financially manageable for Mc Nabb homeowners? At a moderate equity share, generally yes — with deliberate budgeting ahead of time.
Remediation costs are moderate relative to home values in Mc Nabb. The estimated $1,600–$3,300 range is manageable for most homeowners but still worth budgeting for. Home values are 26% below the Illinois average.
Protecting Children from Lead in Mc Nabb
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.
Pulling a tap sample fills the gap that utility data cannot close, particularly here where 66% of housing dates from the pre-rule era and citywide monitoring sits at or above the regulatory mark in Mc Nabb.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Mc Nabb
Flood exposure in Mc Nabb is meaningful by NFIP measures — 2 claims on record and 100% of ZIP codes carrying FEMA flood zone designations. That level of activity makes flood history a relevant factor when evaluating local water quality over time.
Mc Nabb has a moderate flood history with 2 FEMA claims averaging $4,991 per payout. 100% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$2,400</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
What You Can Do in Mc Nabb
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. With 66% of homes built before 1986, lead solder is a real possibility.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Mc Nabb, IL