Hebo Joint Water & Sanitary Auth, OR
Exceeded the action level in the past
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2025-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Hebo Joint Water & Sanitary Auth at a glance
Hebo Joint Water & Sanitary Auth serves about 250 people through 59 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Tillamook County, Oregon. EPA system ID: OR4100367; phone on file: 503-392-6100. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
Against the period ending 2024 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Hebo Joint Water & Sanitary Auth is 146 ppb across 7 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2023 | 0 (not detected) |
| 2023 | 4.6 ppb |
| 2022 | 146 ppb over 15 |
| 2019 | 11 ppb over 10 |
| 2016 | 1.7 ppb |
How Hebo Joint Water & Sanitary Auth compares
Of the 909 Oregon systems with a lead result, the median latest reading is 1 ppb; 15 are over 15 ppb right now and 71 have gone over at some point. Hebo Joint Water & Sanitary Auth's reported as 0 (not detected) sits at the 24th percentile in Oregon and the 17th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Tillamook County
34 other systems share Tillamook County; 18 of them have a higher latest lead result than Hebo Joint Water & Sanitary Auth. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Tillamook Water Dept, City Of | 5,265 | 0 (not detected) |
| Manzanita, City Of | 3,200 | 0 (not detected) |
| Fairview Water District | 1,930 | 2.03 ppb |
| Netarts Water District | 1,800 | 0 (not detected) |
| Neskowin Reg Water Dist | 1,735 | 0 (not detected) |
| Nehalem, City Of | 1,700 | 1.92 ppb |
| Rockaway Beach, City Of | 1,533 | 0 (not detected) |
| Bay City Water System | 1,400 | 0 (not detected) |
| Long Prairie Water District | 1,052 | 0 (not detected) |
| Pacific City Joint Water - San Auth | 1,000 | 1.8 ppb |
Next steps for Hebo, OR
Test your own tap with a certified lab first-draw sample; Hebo, OR 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 Hebo Joint Water & Sanitary Auth whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 2180 ppb (copper action level 1,300 ppb).
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. More in what a past exceedance means today.