South Cheyenne Water & Sewer District, WY
Lead detected, under the action levels
Latest 90th-percentile lead: 6 ppb (monitoring period 2021-2023). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
Who runs the water here
South Cheyenne Water & Sewer District serves about 10,000 people through 1,500 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Laramie County, Wyoming. EPA system ID: WY5600239; phone on file: 307-635-5608. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
That is up 2 ppb from 4 ppb in the period ending 2020. The highest 90th-percentile result EPA holds for South Cheyenne Water & Sewer District is 6 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 6 ppb |
| 2020 | 4 ppb |
| 2017 | 5 ppb |
Where this result ranks
Of the 311 Wyoming systems with a lead result, the median latest reading is 1 ppb; 0 are over 15 ppb right now and 16 have gone over at some point. South Cheyenne Water & Sewer District's 6 ppb sits at the 96th percentile in Wyoming and the 93rd nationally (higher means more lead).
Neighbouring systems
15 other systems share Laramie County; 1 of them has a higher latest lead result than South Cheyenne Water & Sewer District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Cheyenne Board Of Public Utilities | 64,165 | 15 ppb |
| Usaf F.E. Warren Afb | 5,500 | 0 (not detected) |
| Winchester Hills | 1,078 | 3 ppb |
| Burns Board Of Public Utilities | 1,024 | 1 ppb |
| West Winds | 663 | 0 (not detected) |
| Big Country Estates | 615 | 1 ppb |
| Cimmaron Village | 327 | 2 ppb |
| Orchard Valley Water Company | 260 | 0 (not detected) |
| Albin, Town Of | 181 | 0 (not detected) |
| Englewood Village Mhp | 152 | 2 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Cheyenne, WY may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask South Cheyenne Water & Sewer District whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. What a 90th-percentile result does and does not tell you: how to read a lead result. The action level is dropping - the 10 ppb rule from 2027.