Lamar, AR Water Safety: 99/100 (2026)
1 ZIP code · 6 water systems · Updated 2026-06-03
In current tracking cycles, Lamar records above-average water quality outcomes for AR; compliance history over recent years shows few departures from federal standards and no systemic failures across its water systems.
How Lamar Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Lamar Water
- Average lead level: 0.001 mg/L.
- Homes built before 1986: 45% — older plumbing may contain lead solder.
- CDC health risk index: 15.35 — above typical levels.
Who Supplies Your Water in Lamar
6 water systems are tracked federally in Lamar, AR. The top 3 providers collectively serve most residential addresses, but because they operate independently, infrastructure maintenance standards and compliance histories differ from one service zone to another.
Overview
We track water quality and home safety data for 1 ZIP code in Lamar, Arkansas (population ~3,874), covering 6 community water systems serving approximately 25,090 people region-wide.
No EPA violations recorded across any ZIP codes in Lamar — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Lamar: A (99/100)
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
Lamar water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0010 mg/L (EPA action level: 0.015 mg/L)
- 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 |
|---|---|---|---|
| 72846 | A | East Johnson Company Water Assn | 4,828 |
All ZIP Codes in Lamar
- 72846 [A]
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.
Health Outcomes in Lamar
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
Housing & Infrastructure in Lamar
With 45% 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
Over the decades, Lamar accumulated housing from multiple construction periods. The median build year of 1981 places the midpoint of that stock near the 1986 threshold when lead solder in plumbing became federally prohibited — leaving a sizable share of homes on each side of that safety line.
Most homes in Lamar 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.
Lead Exposure Risk for Children in Lamar
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.
If 45% of the Lamar inventory comes from before the federal ban on lead-bearing solder — and if utility samples sit at or near 0.015 mg/L — the gap between citywide averages and one specific faucet becomes a practical concern rather than a theoretical one. That is why one-home reads exist as a separate measurement. A certified filter through retailer networks addresses confirmed exposure where it appears in a household.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Lamar, AR