Knobel, AR Water Safety: 82/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-03
For households in Knobel, AR water data shows a consistently above-average safety picture.
How Knobel Compares
Data: EPA SDWIS Last verified: 2026-06-03
Knobel Water: The Quick Version
- Homes built before 1986: 34% — older plumbing may contain lead solder.
- Estimated remediation: $1,800 per household.
- CDC health risk index: 15.9 — above typical levels.
Water Systems Serving Knobel
2 water utilities share the residential service territory in Knobel, AR — out of 2 total systems in federal records.
Overview
We track water quality and home safety data for 1 ZIP code in Knobel, Arkansas (population ~219), covering 2 community water systems serving approximately 5,882 people region-wide.
No EPA violations recorded across any ZIP codes in Knobel — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Knobel: B (82/100)
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
Knobel water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Knobel
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 72435 | B | Clay Company Reg Water District | 5,633 |
All ZIP Codes in Knobel
- 72435 [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 Knobel
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 Knobel's Housing Stock?
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Knobel's residential inventory spans multiple construction eras, with the median build year of 1991 landing in a zone where pre- and post-1986 homes are both well represented. That split matters because homes built before 1986 may contain lead-soldered copper joints — a plumbing practice banned that year — while those built before 1970 face the additional possibility of lead pipes in the service line. Whether a specific household sits on the older or newer end of this distribution is the primary variable shaping its individual exposure risk.
Most homes in Knobel were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Protecting Children from Lead in Knobel
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.
Wherever 34% of local housing was built before solder rules changed — as is the case in Knobel — a faucet-level sample closes the gap that aggregate utility data cannot.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Knobel
A moderate NFIP record for Knobel — 18 insurance claims paired with 100% of ZIP codes in FEMA flood zones — points to a flood history where water-quality pathways have likely been periodically relevant.
Knobel has a moderate flood history with 18 FEMA claims averaging $39,165 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>$1,800</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.
Deep Dive Reports
Detailed analysis for Knobel, AR