Mammoth Spring, AR: 26 Health Violations — 45/100 (2026)
1 ZIP code · 5 water systems · Updated 2026-06-03
Public water data for Mammoth Spring, AR shows a low safety grade — health-based violations appear across a meaningful share of service areas in current EPA records.
How Mammoth Spring Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Mammoth Spring Residents
- Your city's water systems recorded 130 violations in the past 5 years.
- Homes built before 1986: 53% — older plumbing may contain lead solder.
- Estimated remediation: $2,800 per household.
- CDC health risk index: 17.72 — above typical levels.
Mammoth Spring's Water Providers
Structurally, Mammoth Spring, AR's water supply is divided. Federal data identifies 5 water systems in the area, with 3 providers serving the bulk of residential connections. These utilities operate independently, meaning rate-setting authority and EPA compliance accountability are distributed rather than centralized.
Overview
We track water quality and home safety data for 1 ZIP code in Mammoth Spring, Arkansas (population ~2,749), covering 5 community water systems serving approximately 11,410 people region-wide.
1 of 1 ZIP code (100%) have recorded EPA violations. 26 health-based violations documented.
Home Safety Score
Average Home Safety Score for Mammoth Spring: D (45/100)
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
Mammoth Spring water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Mammoth Spring
- 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.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting | 114 | 1 |
| Contaminant 0700 | Other | 58 | 1 |
| Chlorine residual | Disinfectant | 50 | 1 |
| Lead and Copper Rule | Treatment Technique | 34 | 1 |
| Stage 1 DBP Rule | Treatment Technique | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 72554 | D | 130 | 26 | Mammoth Spring Waterworks |
All ZIP Codes in Mammoth Spring
- 72554 [D] — 130 violations ⚠
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.
Mammoth Spring Community Health Snapshot
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
What's in Mammoth Spring's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Mammoth Spring Infrastructure Age
With 53% 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. Mammoth Spring's median build year of 1986 reflects a housing stock where these older materials are a pervasive feature — not a rare legacy — of the residential plumbing landscape.
Over half of homes in Mammoth Spring 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.
How Remediation Costs Compare in Mammoth Spring
The Mammoth Spring remediation share exceeds what lower-tier markets face — the cost-to-value ratio here is elevated, and the household financial perspective reflects a commitment that most homeowners need to plan for explicitly.
At 2.2% of home value, remediation costs in Mammoth Spring represent a significant financial burden. For homes valued near the median, fixing water and safety issues could cost $1,500–$4,800. Home values here are 6% below the Arkansas average.
Mammoth Spring: Lead Risk & Vulnerable Populations
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.
When older housing represents 53% of the local inventory or aggregate readings approach the federal action level, an in-home check becomes the standard way to translate citywide averages into the specific reality of an individual Mammoth Spring address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Mammoth Spring: Flood History & Water Damage Risk
The National Flood Insurance Program captures decades of claims at the local level, building a record of cumulative community flood exposure. For Mammoth Spring, that record documents 50 claims and 100% of ZIP codes inside FEMA-designated flood zones. What makes those numbers relevant to water quality is the set of mechanisms flooding activates: heavy precipitation that floods treatment intake zones can introduce contaminants upstream of normal filtration; well casings in low-lying areas can be infiltrated by floodwaters carrying bacteria, sediment, and chemical residue; and distribution system pressure changes during flooding can create backflow conditions. These effects become more probable as flood frequency and magnitude increase — and the NFIP record indicates both are meaningful factors locally.
Mammoth Spring has a moderate flood history with 50 FEMA claims averaging $29,178 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>$2,800</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.
What You Can Do in Mammoth Spring
- 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. Filters rated for Consumer Confidence Report Rule can reduce the most common contaminant found in Mammoth Spring's water.
- Check your home's plumbing. With 53% 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 Mammoth Spring, AR