Colonial Park S/D, AK
Exceeded the action level in the past
Latest 90th-percentile lead: 2.1 ppb (monitoring period 2023-2023). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Who runs the water here
Colonial Park S/D serves about 63 people through 21 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Anchorage Municipality County, Alaska. EPA system ID: AK2211562; phone on file: 907-222-4084. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
Against the period ending 2022 (2 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Colonial Park S/D is 96.8 ppb across 9 monitoring periods, 2 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 2.1 ppb |
| 2022 | 2 ppb |
| 2021 | 1.6 ppb |
| 2021 | 2.1 ppb |
| 2020 | 15.9 ppb over 15 |
| 2019 | 1.35 ppb |
| 2018 | 3.35 ppb |
| 2017 | 8.05 ppb |
| 2016 | 96.8 ppb over 15 |
Where this result ranks
Of the 394 Alaska systems with a lead result, the median latest reading is 1.6 ppb; 3 are over 15 ppb right now and 53 have gone over at some point. Colonial Park S/D's 2.1 ppb sits at the 59th percentile in Alaska and the 74th nationally (higher means more lead).
Neighbouring systems
66 other systems share Anchorage Municipality County; 23 of them have a higher latest lead result than Colonial Park S/D. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Moa Municipality Of Anchorage | 221,351 | 0 (not detected) |
| Jber-Elmendorf | 30,003 | 0 (not detected) |
| Doyon Utilities Jber - Richardson | 20,284 | 0 (not detected) |
| Girdwood Water System | 2,625 | 2.82 ppb |
| Ow Dimond Estates Trailer Court | 1,395 | 0 (not detected) |
| Southwood Manor Tc | 1,005 | 4.8 ppb |
| Penland Park Mhp | 993 | 0.36 ppb |
| Manoogs Isle Mobile Home Park | 935 | 1 ppb |
| Glencaren Court | 828 | 1.2 ppb |
| Rangeview Tc | 795 | 0.05 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Anchorage, AK 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 Colonial Park S/D 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. More in what a past exceedance means today.