Cass Rural Water District Fargo, ND
Lead detected, under the action levels
Latest 90th-percentile lead: 1.63 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
Cass Rural Water District Fargo serves about 4,242 people through 1,697 service connections, which makes it a medium-sized system under EPA's size classes. It is privately owned and draws surface water, in Cass County, North Dakota. EPA system ID: ND0901483; phone on file: 701-428-3139. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Cass Rural Water District Fargo's lead record
That is up 1.63 ppb from 0 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for Cass Rural Water District Fargo is 3.51 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 1.63 ppb |
| 2023 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2019 | 3.51 ppb |
| 2016 | 2.1 ppb |
How Cass Rural Water District Fargo 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. Cass Rural Water District Fargo's 1.63 ppb sits at the 66th percentile in North Dakota and the 65th nationally (higher means more lead).
Other water systems in Cass County
25 other systems share Cass County; 8 of them have a higher latest lead result than Cass Rural Water District Fargo. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Fargo City Of | 120,762 | 1.89 ppb |
| West Fargo City Of | 34,858 | 0 (not detected) |
| Cass Rural Water District-Phase I | 3,658 | 0 (not detected) |
| Casselton City Of | 2,513 | 12.1 ppb |
| Cass Rural Water District-Phase Ii | 1,700 | 0 (not detected) |
| Cass Rural Water District-Phase Iii | 1,682 | 0 (not detected) |
| Horace City Of | 1,641 | 0 (not detected) |
| Mapleton City Of | 1,320 | 0 (not detected) |
| Harwood City Of | 718 | 6.72 ppb |
| Kindred City Of | 692 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Kindred, 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 Cass Rural Water District Fargo 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. Size matters more than most people expect: small vs large water systems.