Is Twentynine Palms, CA tap water safe?
Data: U.S. EPA · How we read the data · How we check it
Summary
No federal limits exceeded in EPA data for Twentynine Palms Water District.
2 public water systems serve parts of Twentynine Palms. The largest, Twentynine Palms Water District, serves 18,795 people. Your water bill names your system.
Largest system
Twentynine Palms Water District
18,795 people · Groundwater · EPA ID CA3610049
| PFAS | Highest average | Limit |
|---|---|---|
| PFOA Not detected | – | 4 ppt |
| PFOS Not detected | – | 4 ppt |
| PFHxS Not detected | – | 10 ppt |
| PFNA Not detected | – | 10 ppt |
| HFPO-DA (GenX) Not detected | – | 10 ppt |
ppt = parts per trillion. "Highest average" is the highest average at any of the system's entry points, the way EPA compares results with the limits.
Lead: 0 ppb at the 90th percentile (Nov 2026, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 0
Across California, 129 of 691 water systems EPA tested had PFAS above a 2024 federal limit, and 26 systems were above the lead action level in results from the last five years. California results.
Twentynine Palms homes and lead pipes
Lead service lines and lead solder were allowed until 1986, so homes from before then are the ones to check. Renting? Ask your landlord what the service line is made of, because it's their pipe to replace. How to check your own line.
Housing: Census American Community Survey 2020–2024 5-year estimates for Twentynine Palms city (tables B25034, B25003). Estimates for small places have a margin of error.
Which system serves your ZIP code
Based on the ZIP codes each system reported serving. Boundaries don't follow ZIP lines exactly, so your water bill is the final word.
| System | ZIP codes in Twentynine Palms |
|---|---|
| Twentynine Palms Water District 18,795 people | 92277 |
| USMC – 29 Palms 16,067 people | 92278 |
Other water systems serving Twentynine Palms
- USMC – 29 Palms16,067 people · Groundwater · California · reported ZIPs hereLead above action level
How nearby cities compare
| City | PFAS | Lead (90th pct.) |
|---|---|---|
| Desert Hot Springs 30 mi Mission Springs Water District | None above limits | 0 ppb |
| Indio 30 mi Coachella Valley Water District – Cove Community | None above limits | 0 ppb |
| Cathedral City 31 mi Coachella Valley Water District – Cove Community | None above limits | 0 ppb |
| Coachella 32 mi Coachella Water Authority | None above limits | 0 ppb |
| Palm Desert 33 mi Coachella Valley Water District – Cove Community | None above limits | 0 ppb |
| Palm Springs 36 mi Coachella Valley Water District – Cove Community | None above limits | 0 ppb |
Questions
Is Twentynine Palms tap water safe to drink?
Twentynine Palms Water District has had no health-based violations since 2016. Utility data can't show lead from your own pipes: if your home was built before 1986, test your tap. Your utility's annual Consumer Confidence Report is the official summary.
Who supplies water in Twentynine Palms, CA?
2 public water systems serve parts of Twentynine Palms. The largest is Twentynine Palms Water District (18,795 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.
Does Twentynine Palms tap water have PFAS?
None detected above EPA's reporting limits. Twentynine Palms Water District had no PFAS detected in EPA's 2023–2025 testing. "Not detected" means below the reporting limit (about 2 to 20 ppt), not proven zero.
Do Twentynine Palms homes have lead pipes?
Census estimates put 39% of Twentynine Palms homes as built before 1980 (California: 56%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. Twentynine Palms Water District's service line inventory says what your line is made of. The only way to know for your home is to check the line where it enters the house and test your tap.
Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.