Trenton Water Users Assoc, ND
Lead detected, under the action levels
Latest 90th-percentile lead: 0.8 ppb (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. 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.
Trenton Water Users Assoc at a glance
Trenton Water Users Assoc serves about 840 people through 300 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws surface water, in Williams County, North Dakota. EPA system ID: ND5300948; phone on file: 701-572-2606. They can tell you what your service line is made of and whether they pay to replace it.
Trenton Water Users Assoc's lead record
Against the period ending 2021 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Trenton Water Users Assoc is 1.06 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0.8 ppb |
| 2021 | 0 (not detected) |
| 2018 | 1.06 ppb |
Against other North Dakota systems
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. Trenton Water Users Assoc's 0.8 ppb sits at the 48th percentile in North Dakota and the 48th nationally (higher means more lead).
Nearby utilities
9 other systems share Williams County; 2 of them have a higher latest lead result than Trenton Water Users Assoc. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Williston City Of | 26,426 | 0 (not detected) |
| Northwest Rural Water District | 5,102 | 0 (not detected) |
| Tioga City Of | 2,202 | 0 (not detected) |
| R & T Water System | 1,003 | 1.67 ppb |
| Ray City Of | 950 | 0 (not detected) |
| Grenora City Of | 244 | 0 (not detected) |
| Prairie View Hoa | 226 | 0 (not detected) |
| Wildrose City Of | 110 | 26.3 ppb |
| Western Area Water Supply Authority | - | - |
What to do in your house
Test your own tap with a certified lab first-draw sample; Trenton, 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 Trenton Water Users Assoc 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.