Karval Water Users Inc, CO
Lead detected, under the action levels
Latest 90th-percentile lead: 0.5 ppb (monitoring period 2023-2025). 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.
About Karval Water Users Inc
Karval Water Users Inc serves about 102 people through 35 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Lincoln County, Colorado. EPA system ID: CO0137012; phone on file: 719-439-5959. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
That is down 3.5 ppb from 4 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Karval Water Users Inc is 4 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0.5 ppb |
| 2021 | 4 ppb |
| 2020 | 2.7 ppb |
| 2019 | 1.8 ppb |
| 2018 | 2.3 ppb |
| 2017 | 0 (not detected) |
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. Karval Water Users Inc's 0.5 ppb sits at the 40th percentile in Colorado and the 43rd nationally (higher means more lead).
Neighbouring systems
6 other systems share Lincoln County; 2 of them have a higher latest lead result than Karval Water Users Inc. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Limon Town Of | 5,080 | 0 (not detected) |
| Limon Correctional Facility | 1,289 | 0 (not detected) |
| Hugo Town Of | 885 | 3 ppb |
| Arriba Town Of | 216 | 0 (not detected) |
| Genoa Town Of | 153 | 0 (not detected) |
| Deer Run Mobile Home Community | 49 | 5.96 ppb |
Next steps for Karval, CO
Test your own tap with a certified lab first-draw sample; Karval, 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 Karval Water Users Inc 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. Why sampled homes are the worst-case ones is in the guide to reading the number. Systems that went over once often dip back under; here is what that means.