Rimrock, AZ: 1 Health Violation — 77/100 (2026)
1 ZIP code · 4 water systems · Updated 2026-06-03
Across Rimrock, EPA monitoring data shows low violation rates and healthy safety margins — a pattern that places the city well above AZ's average for drinking water compliance across recent reporting cycles.
How Rimrock Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Rimrock Water
- Your city's water systems recorded 9 violations in the past 5 years.
- Average lead level: 0.0045 mg/L.
- Homes built before 1986: 38% — older plumbing may contain lead solder.
- Estimated remediation: $2,500 per household.
- CDC health risk index: 13.61 — above typical levels.
Who Supplies Your Water in Rimrock
Water service in Rimrock, AZ is split across 3 utilities out of 4 tracked federally, each operating its own infrastructure and compliance record.
Overview
We track water quality and home safety data for 1 ZIP code in Rimrock, Arizona (population ~4,744), covering 4 community water systems serving approximately 8,975 people region-wide.
1 of 1 ZIP code (100%) have recorded EPA violations. 1 health-based violation documented.
Home Safety Score
Average Home Safety Score for Rimrock: B (77/100)
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
Rimrock water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0045 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.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Revised Total Coliform Rule | Microbiological | 10 | 1 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 2 | 1 |
| Stage 2 DBP Rule | Treatment Technique | 2 | 1 |
| Surface Water Treatment Rule | Treatment Technique | 2 | 1 |
| Consumer Confidence Report Rule | Reporting | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 86335 | B | 9 | 1 | Arizona Water Company - Rimrock |
All ZIP Codes in Rimrock
- 86335 [B] — 9 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.
Health Outcomes in Rimrock
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
Top Contaminants in Rimrock Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Rimrock
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
Rimrock's residential inventory spans multiple construction eras, with the median build year of 1998 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 Rimrock 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.
Cost Context: What Remediation Means for Rimrock Homeowners
Low proportionality — that's the Rimrock picture when remediation costs are placed against typical home equity.
Remediation costs in Rimrock are relatively low compared to home values. The $1,350–$3,900 estimated range is a small fraction of median property value. Home values are 5% below the Arizona average.
Lead Exposure Risk for Children in Rimrock
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.
Although utility-side compliance with federal Lead and Copper requirements remains the system reference, that compliance does not extend down into interior plumbing. With 38% of Rimrock stock built before the solder ban and aggregate readings at or beyond the action mark, a household-level sample becomes the practical way to close that information gap.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Rimrock
A moderate NFIP record for Rimrock — 48 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.
Rimrock has a moderate flood history with 48 FEMA claims averaging $29,015 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>$2,500</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 Rimrock, AZ