Silverdale Water Dist 16, WA
Lead detected, under the action levels
Latest 90th-percentile lead: 2 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.
Silverdale Water Dist 16 at a glance
Silverdale Water Dist 16 serves about 35,163 people through 10,036 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Kitsap County, Washington. EPA system ID: WA5379300. Ask the utility on your bill for your address in their service line inventory.
Lead results over time
Against the period ending 2022 (1.8 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Silverdale Water Dist 16 is 7 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2 ppb |
| 2022 | 1.8 ppb |
| 2021 | 4 ppb |
| 2020 | 3 ppb |
| 2019 | 7 ppb |
| 2018 | 6 ppb |
Where this result ranks
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. Silverdale Water Dist 16's 2 ppb sits at the 70th percentile in Washington and the 73rd nationally (higher means more lead).
Nearby utilities
149 other systems share Kitsap County; 42 of them have a higher latest lead result than Silverdale Water Dist 16. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Bremerton City Of | 72,951 | 5 ppb |
| West Sound Utility District #1 | 28,930 | 1 ppb |
| North Perry Ave Water District | 24,402 | 1 ppb |
| Poulsbo City Of | 18,400 | 1 ppb |
| Naval Base Kitsap At Bangor | 16,828 | 3 ppb |
| North Peninsula | 16,449 | 2 ppb |
| Port Orchard Water Dept | 15,355 | 0 (not detected) |
| Bainbridge Island City Of | 13,491 | 3 ppb |
| Naval Base Kitsap At Bremerton | 11,792 | 2 ppb |
| Manchester Water District | 10,475 | 0 (not detected) |
Next steps for Silverdale, WA
Test your own tap with a certified lab first-draw sample; Silverdale, 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 Silverdale Water Dist 16 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.