I 94 Mobile Home Park, WA

Exceeded the action level in the past

Latest 90th-percentile lead: 5 ppb (monitoring period 2026-2026). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.

Who runs the water here

I 94 Mobile Home Park serves about 90 people through 42 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Dawson County, Washington. EPA system ID: MT0000410; phone on file: 775-671-7543. They can tell you what your service line is made of and whether they pay to replace it.

Every lead result on file

That is up 3 ppb from 2 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for I 94 Mobile Home Park is 58 ppb across 11 monitoring periods, 1 of them over the 15 ppb action level.

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. I 94 Mobile Home Park's 5 ppb sits at the 91st percentile in Washington and the 91st nationally (higher means more lead).

Next steps for Seattle, WA

Test your own tap with a certified lab first-draw sample; Seattle, 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 I 94 Mobile Home Park 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. More in what a past exceedance means today.