D
35

Poor Water Quality

Cave Creek, AZ 85331

Maricopa County · Population served: 1,946,500 · Data updated March 2026

Water Systems Serving This Area

🏔
CAREFREE WATER COMPANY
Surface water · Pop. 3,894
PWSID: AZ0407015
🏔
CAVE CREEK WATER
Surface water · Pop. 5,895
PWSID: AZ0407016
🏔
PHOENIX CITY OF
Surface water · Pop. 1,695,000
PWSID: AZ0407025
🏔
TONTO HILLS DWID
Surface water · Pop. 350
PWSID: AZ0407076
🏔
SCOTTSDALE CITY OF
Surface water · Pop. 241,361
PWSID: AZ0407098

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
16.0
15 ppb 1 ppb Exceeded

PFAS / Forever Chemicals

3 detected All below limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFBS16.0 ppt2000 ppt100 pptBelow limit
PFBA6.0 pptNo standard500 pptUnregulated
PFBS3.2 ppt2000 ppt100 pptBelow limit

Violation History (Last 5 Years)

117Total (5yr)
2Health-Based
67Major

Water Quality Summary

Understanding Your Water in Cave Creek

Tap water quality in Cave Creek, Arizona (85331) receives an overall grade of D (Poor) with a score of 35 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 24 points below the Arizona state average of 60. Compared to the national average (75), this area scores significantly lower. The area is served by 5 water systems providing water to approximately 1,946,500 people, using surface water sources. Testing has found elevated levels of Lead that warrant attention. PFAS testing detected 3 compounds, all currently below EPA limits. Over the past 5 years, water systems here have accumulated 117 violations, including 2 health-based violations.

Your Score 35/100 D
vs State 24 pts below Arizona avg (60)
vs National 40 pts below national avg (75)

What a Grade D Means

A score of 35/100 signals poor water quality in Cave Creek, AZ. Significant issues have been identified, which may include multiple violations, contaminant levels near or above regulatory limits, or PFAS contamination. We recommend reviewing the detailed contaminant data below, considering a certified water filter, and checking your utility's Consumer Confidence Report for the latest information.

Surface water: sourced from rivers, lakes, or reservoirs

Health Information

What These Contaminants Mean for You

⚠️

Lead in Your Water

Lead is a toxic metal that can leach from aging pipes and plumbing fixtures.

Health Effects

Even low levels of lead exposure can cause developmental delays in children, kidney damage, and cardiovascular effects in adults. The EPA action level is 15 ppb, but health experts recommend no safe level of lead in drinking water.

Common Sources

Lead enters water primarily through corrosion of lead service lines, lead solder, and brass fixtures — especially in homes built before 1986.

What You Can Do

If lead is detected above 1 ppb, consider using a certified lead-removal filter (NSF/ANSI 53) for drinking and cooking water. Run cold water for 30 seconds before use if water has been sitting in pipes.

Common Questions

Frequently Asked Questions

Tap water in Cave Creek, Arizona receives a grade of D (Poor) with a score of 35/100. This indicates significant water quality concerns based on violation history, contaminant levels, or enforcement actions. We recommend reviewing the specific contaminants detected below and considering a certified water filter.

ZIP code 85331 is served by 5 water systems using surface water sources, providing water to approximately 1,946,500 people. Surface water systems are more susceptible to contamination from agricultural runoff, industrial discharge, and weather events, but typically undergo more extensive treatment including filtration and disinfection.

Yes — lead levels in Cave Creek, Arizona are 16.0 ppb, which exceeds the EPA action level of 15 ppb. This is a serious concern. We strongly recommend using a certified lead-removal filter for all drinking and cooking water, and having your water independently tested.

3 PFAS compounds were detected in water serving Cave Creek, Arizona, but all are currently below EPA limits. While levels are within regulatory standards, some health organizations recommend minimizing any PFAS exposure. Activated carbon or reverse osmosis filters can reduce PFAS levels.

Water systems serving Cave Creek, Arizona have received 117 violations in the last 5 years, including 2 health-based violations. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.

Based on detected contaminants (lead, PFAS), residents in Cave Creek, Arizona should consider: Reverse osmosis (RO) system — most effective for PFAS, lead, and other contaminants. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.

Explore Nearby

Water Quality in Nearby ZIP Codes