Cochise County · Arizona · EPA SDWIS 2026Q2
Tombstone Water Quality
What's in Tombstone's water
Arsenic
Violation on record
15 EPA violations on record (most recent 2020). Arsenic is a naturally occurring element that dissolves into groundwater from rock and is also released by mining and industry. Long-term exposure is associated with several cancers and with skin, cardiovascular, and developmental harm. It is common in parts of the Southwest.
Total Trihalomethanes (TTHM)
Violation on record
1 EPA violation on record (most recent 2021). 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
Tombstone'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
TOMBSTONE CITY OF
- Population served
- 1,545
- PWSID
- AZ0402033
- 1
See your Water Score
Free, instant, no signup.
- 2
Get your custom fix-it plan
Exactly what your water needs.
- 3
Book your free 30-min test
No pitch, no nonsense.
Compare trusted local water pros
License-verified installers near Tombstone. Get a free water test and a fix-it plan — no pitch.
Or check a different ZIP: