Northeast Rwd-Langdon Branch, ND
Lead detected, under the action levels
Latest 90th-percentile lead: 1.44 ppb (monitoring period 2021-2023). 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
Northeast Rwd-Langdon Branch serves about 2,450 people through 980 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Cavalier County, North Dakota. EPA system ID: ND1001380; phone on file: 701-265-8503. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Northeast Rwd-Langdon Branch's lead record
Against the period ending 2020 (1.74 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Northeast Rwd-Langdon Branch is 2.48 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 1.44 ppb |
| 2020 | 1.74 ppb |
| 2019 | 1.83 ppb |
| 2018 | 0 (not detected) |
| 2018 | 1.49 ppb |
| 2016 | 2.38 ppb |
| 2016 | 2.48 ppb |
Where this result ranks
Of the 300 North Dakota systems with a lead result, the median latest reading is 0.91 ppb; 3 are over 15 ppb right now and 20 have gone over at some point. Northeast Rwd-Langdon Branch's 1.44 ppb sits at the 61st percentile in North Dakota and the 63rd nationally (higher means more lead).
Other water systems in Cavalier County
4 other systems share Cavalier County; 0 of them have a higher latest lead result than Northeast Rwd-Langdon Branch. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Langdon City Of | 1,878 | 0 (not detected) |
| Osnabrock City Of | 134 | 0 (not detected) |
| Milton City Of | 58 | 0 (not detected) |
| Nekoma City Of | 50 | 1.33 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Cavalier, ND 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 Northeast Rwd-Langdon Branch 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. Why sampled homes are the worst-case ones is in the guide to reading the number. The action level is dropping - the 10 ppb rule from 2027.