Tap Water Results

Is Laramie, WY 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 City of Laramie.

8 public water systems serve parts of Laramie. The largest, City of Laramie, serves 32,395 people. Your water bill names your system.

Largest system

City of Laramie

32,395 people · Surface water · EPA ID WY5600029

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: 1.28 ppb at the 90th percentile (Dec 2024, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 0

Across Wyoming, 1 of 32 water systems EPA tested had PFAS above a 2024 federal limit, and 0 systems were above the lead action level in results from the last five years. Wyoming results.

Laramie homes and lead pipes

56%
of homes built before 1980 (Wyoming 49%, US 50%)
19%
built before 1950 (Wyoming 15%)
56%
of households rent (Wyoming 28%)

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

Other water systems serving Laramie

  • South Laramie Water & Sewer District
    490 people · Purchased surface water · Wyoming · lists this city
    Not in EPA's PFAS sample
  • Sunny Meadows Village Water System
    485 people · Purchased surface water · Wyoming · lists this city
    Not in EPA's PFAS sample
  • Cv Laramie MHP, LLC
    375 people · Groundwater · Wyoming · lists this city
    Not in EPA's PFAS sampleAlso: 1 health-based violation since 2016
  • Breazeale's Mobile Home Park Water System
    345 people · Purchased surface water · Wyoming · lists this city
    Not in EPA's PFAS sample
  • Nine-Mile Water & Sewer District
    200 people · Purchased surface water · Wyoming · lists this city
    Not in EPA's PFAS sample
  • Seven Mile Water & Sewer District
    130 people · Purchased surface water · Wyoming · lists this city
    Not in EPA's PFAS sample
1 more systems
  • Antelope Ridge HOA
    70 people · Groundwater · Wyoming · lists this city
    Not in EPA's PFAS sample

How nearby cities compare

CityMain water systemPFASLead (90th pct.)
Cheyenne 44 mi
Cheyenne Board of Public Utilities
Cheyenne Board of Public UtilitiesNone above limits15 ppb
Casper 112 mi
City of Casper
City of CasperNone above limits1 ppb
Gillette 205 mi
City of Gillette
City of GilletteNone above limits2 ppb
Laramie ZIP codes (1)
  • 82070

Questions

Is Laramie tap water safe to drink?

City of Laramie 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 Laramie, WY?

8 public water systems serve parts of Laramie. The largest is City of Laramie (32,395 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Laramie tap water have PFAS?

None detected above EPA's reporting limits. City of Laramie 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 Laramie homes have lead pipes?

Census estimates put 56% of Laramie homes as built before 1980 (Wyoming: 49%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. City of Laramie'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.