Panther Lake Community Water System, WA
Lead detected, under the action levels
Latest 90th-percentile lead: 4.1 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.
Panther Lake Community Water System at a glance
Panther Lake Community Water System serves about 47 people through 16 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Snohomish County, Washington. EPA system ID: WA5356806. Ask the utility on your bill for your address in their service line inventory.
Lead results over time
That is up 3 ppb from 1.1 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Panther Lake Community Water System is 4.5 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 4.1 ppb |
| 2021 | 1.1 ppb |
| 2018 | 4.5 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. Panther Lake Community Water System's 4.1 ppb sits at the 88th percentile in Washington and the 88th nationally (higher means more lead).
Neighbouring systems
117 other systems share Snohomish County; 10 of them have a higher latest lead result than Panther Lake Community Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Alderwood Water District | 245,715 | - |
| Everett Public Works Dept. City Of | 215,774 | 3.5 ppb |
| Marysville Utilities | 88,582 | 2 ppb |
| Lynnwood City Of | 68,204 | - |
| Sno Pud 1 - Lake Stevens | 67,710 | 3.2 ppb |
| Silver Lake Water & Sewer District | 65,033 | - |
| Edmonds City Of | 34,065 | - |
| Mukilteo Water & Wastewater Distr | 31,437 | - |
| Arlington City Of | 29,508 | 0 (not detected) |
| Mountlake Terrace City Of | 26,402 | - |
Your move
Test your own tap with a certified lab first-draw sample; Arlington, 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 Panther Lake Community Water System 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.