Casa Del Rio Subd, CO
Lead detected, under the action levels
Latest 90th-percentile lead: 10 ppb (monitoring period 2026-2028). 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.
Casa Del Rio Subd at a glance
Casa Del Rio Subd serves about 73 people through 53 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Chaffee County, Colorado. EPA system ID: CO0108375; phone on file: 303-324-6579. 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 10 ppb from 0 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for Casa Del Rio Subd is 10 ppb across 10 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2028 | 10 ppb |
| 2023 | 0 (not detected) |
| 2022 | 2 ppb |
| 2021 | 0.5 ppb |
| 2020 | 1 ppb |
| 2020 | 1.5 ppb |
| 2019 | 0 (not detected) |
| 2018 | 1.5 ppb |
| 2017 | 0.5 ppb |
| 2016 | 1.5 ppb |
Where this result ranks
Of the 1,025 Colorado systems with a lead result, the median latest reading is 1 ppb; 2 are over 15 ppb right now and 71 have gone over at some point. Casa Del Rio Subd's 10 ppb sits at the 99th percentile in Colorado and the 97th nationally (higher means more lead).
Nearby utilities
17 other systems share Chaffee County; 0 of them have a higher latest lead result than Casa Del Rio Subd. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Salida City Of | 5,666 | 0 (not detected) |
| Buena Vista Town Of | 3,776 | 1 ppb |
| Poncha Springs Town Of | 2,118 | 0 (not detected) |
| Buena Vista Correctional Facility | 1,700 | 3 ppb |
| Game Trail Association Inc | 480 | 1 ppb |
| Mesa Antero Subd | 250 | 2.5 ppb |
| Trail West Assoc | 249 | 1.5 ppb |
| Chateau Chaparrel Cg | 240 | 0 (not detected) |
| Glenview Owners Assoc | 195 | 0.5 ppb |
| Princeton Estates Subd | 150 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Buena Vista, CO 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 Casa Del Rio Subd 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. Systems that went over once often dip back under; here is what that means.