Colburn Water Assn, ID
Lead detected, under the action levels
Latest 90th-percentile lead: 1 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.
Colburn Water Assn at a glance
Colburn Water Assn serves about 290 people through 126 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Bonner County, Idaho. EPA system ID: ID1090021; phone on file: 208-265-4270. They can tell you what your service line is made of and whether they pay to replace it.
Colburn Water Assn's lead record
That is down 10 ppb from 11 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Colburn Water Assn is 11 ppb across 4 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1 ppb |
| 2022 | 11 ppb over 10 |
| 2019 | 1 ppb |
| 2016 | 3 ppb |
Against other Idaho systems
Of the 763 Idaho systems with a lead result, the median latest reading is 1 ppb; 3 are over 15 ppb right now and 46 have gone over at some point. Colburn Water Assn's 1 ppb sits at the 50th percentile in Idaho and the 52nd nationally (higher means more lead).
Neighbouring systems
49 other systems share Bonner County; 28 of them have a higher latest lead result than Colburn Water Assn. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Sandpoint Public Works Dept | 12,284 | 4 ppb |
| Priest River City Of | 2,173 | 4 ppb |
| Oden Water Assn Inc | 1,524 | 1 ppb |
| Schweitzer Basin Water Company | 955 | 6 ppb |
| Stoneridge Utilities | 940 | 2 ppb |
| Dover City Of | 865 | 14 ppb |
| Clark Fork City Of | 730 | 2 ppb |
| Sagle Valley Water Dist | 708 | 0 (not detected) |
| Laclede Water Dist | 668 | 2 ppb |
| Southside Water And Sewer Dist | 615 | 4 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Sandpoint, ID 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 Colburn Water Assn 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. Systems that went over once often dip back under; here is what that means.