Columbine Lakes Hoa, CO
Lead detected, under the action levels
Latest 90th-percentile lead: 2 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 Columbine Lakes Hoa
Columbine Lakes Hoa serves about 843 people through 282 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws surface water, in Arapahoe County, Colorado. EPA system ID: CO0103183; phone on file: 303-697-9840. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
Against the period ending 2022 (1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Columbine Lakes Hoa is 2 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2 ppb |
| 2022 | 1 ppb |
| 2021 | 1 ppb |
How Columbine Lakes Hoa 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. Columbine Lakes Hoa's 2 ppb sits at the 72nd percentile in Colorado and the 71st nationally (higher means more lead).
Other water systems in Arapahoe County
28 other systems share Arapahoe County; 5 of them have a higher latest lead result than Columbine Lakes Hoa. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Aurora City Of | 533,407 | 4.7 ppb |
| East Cherry Creek Valley Wsd | 66,130 | 0 (not detected) |
| Englewood City Of | 59,904 | 5 ppb |
| Southgate Wsd | 55,000 | - |
| Southwest Metropolitan Wsd | 48,648 | - |
| Arapahoe Cnty Wwwa | 31,000 | 0 (not detected) |
| Platte Canyon Wsd | 19,485 | - |
| Willows Wd | 19,000 | - |
| Cherry Creek Village Wd | 9,215 | - |
| Inverness Wsd | 8,140 | 4 ppb |
Next steps for Littleton, CO
Test your own tap with a certified lab first-draw sample; Littleton, 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 Columbine Lakes Hoa 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. The action level is dropping - the 10 ppb rule from 2027.