Terrebonne Domestic Water District, OR
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2025-2027). 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.
About Terrebonne Domestic Water District
Terrebonne Domestic Water District serves about 1,400 people through 609 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 Deschutes County, Oregon. EPA system ID: OR4100860; phone on file: 541-548-2727. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Terrebonne Domestic Water District is 0 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2027 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2018 | 0 (not detected) |
How Terrebonne Domestic Water District 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. Terrebonne Domestic Water District's reported as 0 (not detected) sits at the 32nd percentile in Oregon and the 29th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Deschutes County
65 other systems share Deschutes County; 30 of them have a higher latest lead result than Terrebonne Domestic Water District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Bend, City Of | 77,704 | 0 (not detected) |
| Redmond Water Department | 38,208 | 0.45 ppb |
| Avion Wc - Greater Avion | 35,332 | 0 (not detected) |
| Roats Water System | 6,469 | 0.95 ppb |
| Sunriver Water Llc/Sunriver Utilities | 4,300 | 0 (not detected) |
| Sisters, City Of | 3,778 | 1.2 ppb |
| Agate Water System | 3,153 | 0 (not detected) |
| La Pine, City Of | 2,807 | 0 (not detected) |
| Oregon Water Utilities - Cline Butte Inc | 2,526 | 0 (not detected) |
| Water Wonderland Improv Dist 2 | 1,800 | 0 (not detected) |
Your move
Look up your address in Terrebonne Domestic Water District'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 Terrebonne Domestic Water District 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. Small systems behave differently: why small systems go over more often.