Shasta Cascade Mobilehome Park, HI
Lead detected, under the action levels
Latest 90th-percentile lead: 0.92 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.
About Shasta Cascade Mobilehome Park
Shasta Cascade Mobilehome Park serves about 100 people through 53 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Siskiyou County, Hawaii. EPA system ID: CA4700627; phone on file: 808-499-8487. 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 down 1.06 ppb from 1.98 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Shasta Cascade Mobilehome Park is 1.98 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0.92 ppb |
| 2022 | 1.98 ppb |
| 2019 | 0 (not detected) |
Against other Hawaii systems
Of the 112 Hawaii systems with a lead result, the median latest reading is 0 ppb; 0 are over 15 ppb right now and 1 have gone over at some point. Shasta Cascade Mobilehome Park's 0.92 ppb sits at the 95th percentile in Hawaii and the 49th nationally (higher means more lead).
Next steps for Honolulu, HI
Test your own tap with a certified lab first-draw sample; Honolulu, HI 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 Shasta Cascade Mobilehome 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. 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.