Tap Water Results

Is Sahuarita, AZ 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 Sahuarita Water Company.

10 public water systems serve parts of Sahuarita. The largest, Sahuarita Water Company, serves 18,178 people, and one system here had PFAS above a federal limit. Your water bill names your system.

Largest system

Sahuarita Water Company

18,178 people · Groundwater · EPA ID AZ0410312

PFASHighest averageLimitStatus
PFOA
Not detected
–4 pptNot detected
PFOS
Not detected
–4 pptNot detected
PFHxS
Not detected
–10 pptNot detected
PFNA
Not detected
–10 pptNot detected
HFPO-DA (GenX)
Not detected
–10 pptNot detected

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 (Dec 2025, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 0

Across Arizona, 21 of 159 water systems EPA tested had PFAS above a 2024 federal limit, and 10 systems were above the lead action level in results from the last five years. Arizona results.

Sahuarita homes and lead pipes

4%
of homes built before 1980 (Arizona 29%, US 50%)
0%
built before 1950 (Arizona 3%)
19%
of households rent (Arizona 33%)

Lead service lines and lead solder were allowed until 1986, so homes from before then are the ones to check. How to check your own line.

Housing: Census American Community Survey 2020–2024 5-year estimates for Sahuarita town (tables B25034, B25003). Estimates for small places have a margin of error.

Other water systems serving Sahuarita

3 more systems
  • Global Water – Ocotillo Water – Sierrita Foothills
    79 people · Groundwater · Arizona · lists this city
    Not in EPA's PFAS sample
  • Lazy Acres MHP
    75 people · Groundwater · Arizona · lists this city
    Not in EPA's PFAS sample
  • Santa Rita Heights MHP
    50 people · Groundwater · Arizona · lists this city
    Coliform bacteria violations

How nearby cities compare

CityMain water systemPFASLead (90th pct.)
Tucson 16 mi
City of Tucson
City of TucsonNone above limits0.65 ppb
Oro Valley 34 mi
Oro Valley Water Utility
Oro Valley Water UtilityNone above limits1 ppb
Marana 38 mi
City of Tucson
City of TucsonNone above limits0.65 ppb
Sierra Vista 46 mi
Bella Vista City Water System
Bella Vista City Water SystemNone above limits0 ppb
Casa Grande 82 mi
Arizona Water Company – Pinal Valley
Arizona Water Company – Pinal ValleyNone above limits0 ppb
Florence 83 mi
Florence Water Company
Florence Water CompanyNone above limits0 ppb
Sahuarita ZIP codes (1)
  • 85629

Questions

Is Sahuarita tap water safe to drink?

Sahuarita Water Company 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 Sahuarita, AZ?

10 public water systems serve parts of Sahuarita. The largest is Sahuarita Water Company (18,178 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Sahuarita tap water have PFAS?

None detected above EPA's reporting limits. Sahuarita Water Company 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 Sahuarita homes have lead pipes?

Census estimates put 4% of Sahuarita homes as built before 1980 (Arizona: 29%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. Sahuarita Water Company'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.