1610 Llc (Willow Manor Apts), CO
Lead detected, under the action levels
Latest 90th-percentile lead: 3.8 ppb (monitoring period 2022-2024). 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
1610 Llc (Willow Manor Apts) serves about 35 people through 15 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Ulster County, Colorado. EPA system ID: NY5521421; phone on file: 720-840-1857. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
That is up 3.29 ppb from 0.51 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for 1610 Llc (Willow Manor Apts) is 3.8 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 3.8 ppb |
| 2021 | 0.51 ppb |
| 2018 | 1 ppb |
Against other Colorado systems
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. 1610 Llc (Willow Manor Apts)'s 3.8 ppb sits at the 88th percentile in Colorado and the 86th nationally (higher means more lead).
Next steps for Boulder, CO
Test your own tap with a certified lab first-draw sample; Boulder, 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 1610 Llc (Willow Manor Apts) 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.