Hidden Valley Hoa Water Company, CO
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Who runs the water here
Hidden Valley Hoa Water Company serves about 120 people through 52 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws surface water, in Delta County, Colorado. EPA system ID: CO0115342; phone on file: 720-938-5761. They can tell you what your service line is made of and whether they pay to replace it.
Hidden Valley Hoa Water Company's lead record
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Hidden Valley Hoa Water Company is 5.3 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2020 | 1.1 ppb |
| 2019 | 2.1 ppb |
| 2018 | 5.3 ppb |
| 2018 | 1.8 ppb |
How Hidden Valley Hoa Water Company compares
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. Hidden Valley Hoa Water Company's reported as 0 (not detected) sits at the 7th percentile in Colorado and the 11th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Delta County
29 other systems share Delta County; 20 of them have a higher latest lead result than Hidden Valley Hoa Water Company. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Delta City Of | 8,700 | - |
| Orchard City Town Of | 3,100 | 7 ppb |
| Upper Surface Creek Domestic Wua | 2,800 | 3 ppb |
| Paonia Town Of | 2,499 | 1.2 ppb |
| Cedaredge Town Of | 2,400 | 2 ppb |
| Hotchkiss Town Of | 2,050 | 0.8 ppb |
| Rogers Mesa Wc | 840 | 0 (not detected) |
| Crawford Mesa Wa | 486 | 8.4 ppb |
| Crawford Town Of | 477 | 1 ppb |
| Bone Mesa Domestic Wd | 400 | 0 (not detected) |
What to do in your house
Look up your address in Hidden Valley Hoa Water Company's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Hidden Valley Hoa Water Company 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. The lead result guide covers how utilities pick the homes they sample. Small systems behave differently: why small systems go over more often.