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Not health advice. Contact your local water utility for concerns.
Data from EPA Water Quality Reports. For official information, contact your water utility or health department.
No EPA system match yet • Updated November 2026
We couldn't match Cheyenne to an EPA water system yet
Cheyenne is served by a water system we have not yet matched to EPA's Safe Drinking Water Information System, so we cannot grade it. Your utility's annual Consumer Confidence Report is the best source until we do.
We can't grade Cheyenne, WY tap water yet: the city has not been matched to a water system in EPA's Safe Drinking Water Information System, so we have no violation, lead or PFAS records to judge it on. Check your utility's Consumer Confidence Report (published by July 1 each year) for its lead 90th-percentile result, PFAS results and any violations, and test your own tap if your home was built before 1986.
We can't grade Cheyenne, WY tap water yet: the city has not been matched to a water system in EPA's Safe Drinking Water Information System, so we have no violation, lead or PFAS records to judge it on. Check your utility's Consumer Confidence Report (published by July 1 each year) for its lead 90th-percentile result, PFAS results and any violations, and test your own tap if your home was built before 1986.
Search your water bill for the utility name, then look for its Consumer Confidence Report (CCR) on the utility website or ask for it by phone. Utilities must publish a CCR every year by July 1.
Yes if your home was built before 1986 or you have not seen a recent report. A certified mail-in lab test measures lead, copper, nitrate, PFAS and dozens of other contaminants at your own tap.
Compare filter options for your Cheyenne tap water
EPA data describes water leaving the plant — a certified mail-in lab test shows what reaches your own faucet, including lead from household plumbing.
See the filters matched to Cheyenne's EPA results → — which certification actually removes what was found here, and what it does not touch.
Unsure which contaminants to treat? Compare home kits and certified lab testing before buying.
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· SDWIS records since 2016 · 5-year window starts 2021-11-13
EPA records no health-based violations for this system in the last five years.
No violations of any kind on file since 2016.
Source:
EPA Lead and Copper Rule 90th-percentile results reported by
No Lead and Copper Rule 90th-percentile result is on file for this system in EPA's SDWIS extract. Your utility's annual Consumer Confidence Report should list its most recent lead sampling.
Source: EPA SDWIS Lead and Copper Rule samples
EPA UCMR5 monitoring, 2023-10-25 to 2024-07-29 · 232 PFAS results at entry points to the distribution system
No PFAS detected. None of the 232 UCMR5 PFAS results for were at or above the method reporting limit. Reporting limits are about 3–5 ppt, so “not detected” means below that threshold — not proven zero.
| Compound | Detects / samples | Max (ppt) | Reporting limit | EPA MCL |
|---|---|---|---|---|
| PFOA | 0 / 8 | < 4 | 4 ppt | 4 ppt |
| PFOS | 0 / 8 | < 4 | 4 ppt | 4 ppt |
| PFHxS | 0 / 8 | < 3 | 3 ppt | 10 ppt |
| PFNA | 0 / 8 | < 4 | 4 ppt | 10 ppt |
| HFPO-DA | 0 / 8 | < 5 | 5 ppt | 10 ppt |
| PFBS | 0 / 8 | < 3 | 3 ppt | hazard index only |
“< 4 ppt” means below the laboratory reporting limit, not zero. ppt = parts per trillion (ng/L). Results are for finished water leaving the treatment plant.
Lithium (also monitored under UCMR5, not a PFAS): detected in 1 of 8 samples, max 9.6 µg/L. There is no federal limit for lithium.
What PFAS are and how to remove them →
Source: UCMR5 occurrence data, EPA Data Summary July 2026 (UCMR5_All.txt)
CHEYENNE BOARD OF PUBLIC UTILITIES · 28,255 service lines inventoried · Q2 2026 snapshot
CHEYENNE BOARD OF PUBLIC UTILITIES reports 82 service lines that are lead or galvanized-requiring-replacement (0.3% of the lines it has inventoried), plus 28,173 lines whose material is still unknown. A lead service line is the pipe between the water main and a building, so treated water can pick up lead after it leaves the plant — which city-level testing does not capture. Under EPA's Lead and Copper Rule Improvements, utilities must replace lead lines within 10 years starting in 2027.
Source: EPA SDWIS Service Line Inventory (Q2 2026) · PWS ID WY5600011 · See all Wyoming lead service lines. We may earn a commission from filters and test kits, at no extra cost to you.
Source type was not reported to EPA for this system.
Our grades are computed from EPA's Safe Drinking Water Information System (SDWIS), UCMR5 PFAS monitoring and Six-Year Review sample data, matched to a city through its public water system ID. The PWSID we hold for Cheyenne does not resolve to an active system in the 2026Q2 federal extract — usually because the city is served by a regional or county utility, or the system was consolidated under a new ID.
Until we match it, the reliable source is your utility's annual Consumer Confidence Report. How to find it → You can also search EPA's SDWIS federal reports by county.
EPA data for Cheyenne comes from utility sampling, which measures water as it leaves the system — not what reaches your faucet. Lead and copper are picked up between the main and your tap, so homes built before 1986 should test their own faucet even when the system record is clean.
On a private well near Cheyenne? Utility data does not cover wells; EPA recommends testing at least yearly for bacteria and nitrate (EPA: protect your home's water).
How to test your tap water and the treatment options that actually fit Cheyenne homes
The most reliable way to know what is actually coming out of your tap is a certified mail-in lab test. City-wide EPA data (like the report above) reflects the water leaving the treatment plant, but contaminants such as lead and copper can be picked up from your own service line and household plumbing — so the water at your Cheyenne faucet can differ from the system average. A state-certified lab measures dozens of contaminants at once with results you can trust; you can also find one near you through the EPA's certified-lab list at epa.gov/dwlabcert. Hardware-store test strips are cheaper and instant, but they only screen for a few basics (chlorine, hardness, pH, and a rough lead pass/fail) and are far less accurate — treat them as a first look, not a diagnosis.
Match the treatment to what your test finds. Reverse osmosis (RO) removes the widest range of contaminants — lead, arsenic, nitrate, PFAS, and dissolved solids — which makes an under-sink reverse osmosis system the most thorough choice for Cheyenne households with heavy-metal or PFAS concerns. If your main issue is taste, odor, or chlorine, an activated carbon filter (pitcher, faucet, or under-sink) is simpler and cheaper and handles chlorine and many organic compounds well, though carbon alone does not remove arsenic, nitrate, or most PFAS. NSF-certified pitchers rated for lead reduction are the easiest way to start today while you decide on a permanent setup.
We may earn a commission from testing kits and filters purchased through these links, at no extra cost to you.
What Cheyenne residents measured at their own tap. All reader results →
Reader submissions are unverified and shown separately from EPA data. They reflect one tap on one day, not the utility's compliance record.
No reader results for Cheyenne yet - yours would be the first. A hardness or TDS number from a $10 strip kit is enough to start the map.
Help build the first reader-sourced water map. Enter whatever your test strip, TDS pen or lab report shows - one number is enough.
Real EPA-based grades for other Wyoming cities in our dataset.
We can't grade Cheyenne, WY tap water yet: the city has not been matched to a water system in EPA's Safe Drinking Water Information System, so we have no violation, lead or PFAS records to judge it on. Check your utility's Consumer Confidence Report (published by July 1 each year) for its lead 90th-percentile result, PFAS results and any violations, and test your own tap if your home was built before 1986.
Search your water bill for the utility name, then look for its Consumer Confidence Report (CCR) on the utility website or ask for it by phone. Utilities must publish a CCR every year by July 1.
Yes if your home was built before 1986 or you have not seen a recent report. A certified mail-in lab test measures lead, copper, nitrate, PFAS and dozens of other contaminants at your own tap.
Even with good water quality, a filter removes trace contaminants and improves taste.
For Everyday Peace of Mind
Brita Elite Pitcher
Your water already tests well — a simple carbon filter improves taste and catches trace contaminants.
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