Northfork Tr Ct Columbia Falls, ID
Lead detected, under the action levels
Latest 90th-percentile lead: 1 ppb (monitoring period 2024-2026). 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
Northfork Tr Ct Columbia Falls serves about 48 people through 19 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Flathead County, Idaho. EPA system ID: MT0000110; phone on file: 626-616-0930. They can tell you what your service line is made of and whether they pay to replace it.
Northfork Tr Ct Columbia Falls's lead record
Against the period ending 2017 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Northfork Tr Ct Columbia Falls is 1 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 1 ppb |
| 2017 | 0 (not detected) |
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. Northfork Tr Ct Columbia Falls's 1 ppb sits at the 39th percentile in Idaho and the 50th nationally (higher means more lead).
Neighbouring systems
1 other system shares Flathead County; 1 of them has a higher latest lead result than Northfork Tr Ct Columbia Falls. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Mountain Villa Apts Kalispell | 300 | 9 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Garden City, 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 Northfork Tr Ct Columbia Falls 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. Size matters more than most people expect: small vs large water systems.