Arch Cape Water District, OR
Lead detected, under the action levels
Latest 90th-percentile lead: 1.86 ppb (monitoring period 2023-2025). 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.
Arch Cape Water District at a glance
Arch Cape Water District serves about 200 people through 295 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 surface water, in Clatsop County, Oregon. EPA system ID: OR4100802; phone on file: 503-436-2790. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Arch Cape Water District's lead record
That is down 2.14 ppb from 4 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Arch Cape Water District is 11.1 ppb across 4 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.86 ppb |
| 2022 | 4 ppb |
| 2019 | 7 ppb |
| 2016 | 11.1 ppb over 10 |
Against other Oregon systems
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. Arch Cape Water District's 1.86 ppb sits at the 66th percentile in Oregon and the 68th nationally (higher means more lead).
Nearby utilities
20 other systems share Clatsop County; 5 of them have a higher latest lead result than Arch Cape Water District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Astoria, City Of | 10,181 | 1.56 ppb |
| Warrenton, City Of | 9,100 | 1.15 ppb |
| Seaside Water Department | 7,482 | 0.71 ppb |
| Youngs River Lewis & Clark Wd | 2,580 | 0 (not detected) |
| Knappa Water Association | 1,800 | 0 (not detected) |
| Gearhart Water Department | 1,780 | 0 (not detected) |
| Cannon Beach, City Of | 1,710 | 0 (not detected) |
| Wickiup Water District | 1,630 | 4 ppb |
| Olney-Walluski Water Assn | 575 | 1 ppb |
| Westport Water Association | 550 | 3.22 ppb |
Next steps for Arch Cape, OR
Test your own tap with a certified lab first-draw sample; Arch Cape, 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 Arch Cape 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. 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.