Langdon City Of, ND
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2022-2024). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Who runs the water here
Langdon City Of serves about 1,878 people through 980 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Cavalier County, North Dakota. EPA system ID: ND1000543. Ask the utility on your bill for your address in their service line inventory.
Every lead result on file
That is down 1.15 ppb from 1.15 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Langdon City Of is 1.19 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2021 | 1.15 ppb |
| 2018 | 1 ppb |
| 2018 | 1.19 ppb |
How Langdon City Of compares
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. Langdon City Of's reported as 0 (not detected) sits at the 36th percentile in North Dakota and the 30th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Cavalier County
4 other systems share Cavalier County; 2 of them have a higher latest lead result than Langdon City Of. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Northeast Rwd-Langdon Branch | 2,450 | 1.44 ppb |
| 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
Look up your address in Langdon City Of's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Langdon City Of 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. Small systems behave differently: why small systems go over more often.