Sulphur Rock, AR Water Safety: 83/100 (2026)
1 ZIP code · 4 water systems · Updated 2026-06-03
The water systems supplying Sulphur Rock show a track record of above-average compliance with federal standards — consistently among the better performers in AR.
How Sulphur Rock Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Sulphur Rock Water
- Average lead level: 0.001 mg/L.
- Homes built before 1986: 18% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 15.21 — above typical levels.
Who Supplies Your Water in Sulphur Rock
At present, 3 utilities serve the bulk of Sulphur Rock, AR's residential water connections out of 4 systems active in the area, spread across independent providers with separate infrastructure and compliance obligations.
Overview
We track water quality and home safety data for 1 ZIP code in Sulphur Rock, Arkansas (population ~1,351), covering 4 community water systems serving approximately 12,889 people region-wide.
No EPA violations recorded across any ZIP codes in Sulphur Rock — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Sulphur 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
Sulphur Rock water systems draw from: Groundwater.
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 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 |
|---|---|---|---|
| 72579 | B | Rock Moore Water Authority | 3,462 |
All ZIP Codes in Sulphur Rock
- 72579 [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.
Health Outcomes in Sulphur 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
Housing & Infrastructure in Sulphur Rock
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
Lead solder was federally prohibited in new plumbing in 1986. In Sulphur Rock, the median build year of 2006 puts a majority of homes in the lower-risk category for that specific contamination pathway — though the pre-1986 share shown above still carries real exposure potential at the individual household level.
Most homes in Sulphur Rock 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 Sulphur 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.
Reading Sulphur Rock's aggregate samples next to its housing-age figures yields a quiet baseline. Lead rests under the federal action benchmark in citywide monitoring, and only 18% of homes were built before the federal ban on solder containing lead. Households with kids — the population for whom CDC guidance places particular weight on minimizing exposure — can confirm in-home conditions with a draw-test kit, with a certified lead-removal filter available through certified retail channels if results warrant it.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Sulphur Rock, AR