Tap Water Results

Is Erie, CO 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 Town of Erie.

3 public water systems serve parts of Erie. The largest, Town of Erie, serves 47,444 people. Your water bill names your system.

Largest system

Town of Erie

47,444 people · Surface water · EPA ID CO0162255

Buys treated water from Left Hand Water District, City of Lafayette.

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: 2.6 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 Colorado, 4 of 158 water systems EPA tested had PFAS above a 2024 federal limit, and 2 systems were above the lead action level in results from the last five years. Colorado results.

Erie homes and lead pipes

5%
of homes built before 1980 (Colorado 40%, US 50%)
2%
built before 1950 (Colorado 9%)
12%
of households rent (Colorado 34%)

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 Erie town (tables B25034, B25003). Estimates for small places have a margin of error.

Other water systems serving Erie

  • Left Hand Water District
    20,280 people · Surface water · Colorado · reported ZIPs here
    No PFAS above limits
  • Central Weld County Water District
    7,662 people · Purchased surface water · Colorado · reported ZIPs here
    No PFAS above limits

How nearby cities compare

CityMain water systemPFASLead (90th pct.)
Lafayette 4 mi
City of Lafayette
City of LafayetteNone above limits2 ppb
Broomfield 6 mi
County of Broomfield City and
County of Broomfield City andNone above limits2.5 ppb
Northglenn 9 mi
City of Northglenn
City of NorthglennNone above limits1.7 ppb
Longmont 9 mi
City of Longmont
City of LongmontNone above limits1.6 ppb
Thornton 10 mi
City of Thornton
City of ThorntonNone above limits2.3 ppb
Westminster 11 mi
City of Westminster
City of WestminsterNone above limits1.3 ppb
Erie ZIP codes (1)
  • 80516

Questions

Is Erie tap water safe to drink?

Town of Erie 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 Erie, CO?

3 public water systems serve parts of Erie. The largest is Town of Erie (47,444 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Erie tap water have PFAS?

None detected above EPA's reporting limits. Town of Erie 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 Erie homes have lead pipes?

Census estimates put 5% of Erie homes as built before 1980 (Colorado: 40%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. Town of Erie'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.