Maricopa County · Arizona · EPA SDWIS 2026Q2
Apache Lake Water Quality
What's in Apache Lake's water
Total Trihalomethanes (TTHM)
Violation on record
4 EPA violations on record (most recent 2025). TTHM form when chlorine used to disinfect water reacts with natural organic matter. Long-term exposure has been linked to increased cancer risk and to harm in pregnancy. Levels often rise in warmer months and in systems with more organic material.
Water hardness
very hard
Apache Lake's water is very hard. Hardness isn't a health risk, but it drives scale on fixtures and water heaters, shortens appliance life, and leaves skin and hair dry.
Your water provider
APACHE LAKE MARINA RESORT
- Population served
- 123
- PWSID
- AZ0407630
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