North Peninsula, WA
Lead detected, under the action levels
Latest 90th-percentile lead: 2 ppb (monitoring period 2022-2024). 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.
North Peninsula at a glance
North Peninsula serves about 16,449 people through 5,720 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: WA5305122. Ask the utility on your bill for your address in their service line inventory.
Lead results over time
That is down 3.6 ppb from 5.6 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for North Peninsula is 5.6 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 2 ppb |
| 2021 | 5.6 ppb |
| 2018 | 3 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. North Peninsula's 2 ppb sits at the 70th percentile in Washington and the 73rd nationally (higher means more lead).
Neighbouring systems
149 other systems share Kitsap County; 42 of them have a higher latest lead result than North Peninsula. 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 |
| Silverdale Water Dist 16 | 35,163 | 2 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 |
| 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 Poulsbo, WA
Test your own tap with a certified lab first-draw sample; Poulsbo, 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 North Peninsula 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. The lead result guide covers how utilities pick the homes they sample. Systems that went over once often dip back under; here is what that means.