Riverside Wc, CO
Above the new 10 ppb level coming in 2027
Latest 90th-percentile lead: 11 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. Under the current 15 ppb rule this is not an exceedance, but it is above the 10 ppb action level that takes over in Nov 2027. Test your own tap; filter if your result shows lead.
Who runs the water here
Riverside Wc serves about 90 people through 60 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Otero County, Colorado. EPA system ID: CO0145570; phone on file: 719-469-6277. They can tell you what your service line is made of and whether they pay to replace it.
Riverside Wc's lead record
That is up 6.5 ppb from 4.5 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Riverside Wc is 11 ppb across 7 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 11 ppb over 10 |
| 2022 | 4.5 ppb |
| 2021 | 3 ppb |
| 2020 | 4 ppb |
| 2018 | 2 ppb |
| 2017 | 0 (not detected) |
| 2016 | 2.7 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. Riverside Wc's 11 ppb sits at the 99th percentile in Colorado and the 98th nationally (higher means more lead).
Neighbouring systems
22 other systems share Otero County; 0 of them have a higher latest lead result than Riverside Wc. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| La Junta City Of | 8,320 | 1 ppb |
| Rocky Ford City Of | 4,443 | 0 (not detected) |
| Fowler Town Of | 1,169 | 0 (not detected) |
| Bents Fort Wc | 900 | 0.6 ppb |
| Swink Town Of | 660 | 2 ppb |
| South Swink Water Authority | 622 | 3 ppb |
| Eureka Wc | 498 | 0 (not detected) |
| Manzanola Town Of | 497 | 0 (not detected) |
| Newdale Grand Valley Wc | 458 | 0 (not detected) |
| Hilltop Wc | 285 | 1.5 ppb |
Next steps for Rocky Ford, CO
Test your own tap with a certified lab first-draw sample; Rocky Ford, 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 Riverside Wc 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. This system is in the band the 2027 10 ppb rule changes.