Lost Lake Property Owners Assn, WA
Lead detected, under the action levels
Latest 90th-percentile lead: 2.4 ppb (monitoring period 2021-2023). 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.
About Lost Lake Property Owners Assn
Lost Lake Property Owners Assn serves about 736 people through 402 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Island County, Washington. EPA system ID: WA5348345. Ask the utility on your bill for your address in their service line inventory.
Lead results over time
That is down 1.5 ppb from 3.9 ppb in the period ending 2020. The highest 90th-percentile result EPA holds for Lost Lake Property Owners Assn is 4 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 2.4 ppb |
| 2020 | 3.9 ppb |
| 2017 | 4 ppb |
Against other Washington systems
Of the 2,218 Washington systems with a lead result, the median latest reading is 1 ppb; 18 are over 15 ppb right now and 62 have gone over at some point. Lost Lake Property Owners Assn's 2.4 ppb sits at the 75th percentile in Washington and the 77th nationally (higher means more lead).
Nearby utilities
232 other systems share Island County; 59 of them have a higher latest lead result than Lost Lake Property Owners Assn. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Oak Harbor City Of | 23,675 | 1.2 ppb |
| Naval Air Station/Whidbey Island | 16,595 | 3.4 ppb |
| Coupeville Town Of | 4,142 | 3.5 ppb |
| Camano Water Association | 2,592 | 1 ppb |
| Clinton Water District | 1,980 | 9.8 ppb |
| Langley City Of | 1,416 | 1.9 ppb |
| Harbor Hills Community Water System | 1,373 | 3 ppb |
| Freeland Water And Sewer District | 1,264 | 0 (not detected) |
| W&B Waterworks 1 | 1,112 | 1.3 ppb |
| Camano Co-Op Water & Power Co | 1,071 | 9.5 ppb |
Next steps for Coupeville, WA
Test your own tap with a certified lab first-draw sample; Coupeville, WA 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 Lost Lake Property Owners Assn 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. The action level is dropping - the 10 ppb rule from 2027.