Arlington Heights Mhp, CA
Lead detected, under the action levels
Latest 90th-percentile lead: 2.28 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.
Arlington Heights Mhp at a glance
Arlington Heights Mhp serves about 33 people through 39 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Plumas County, California. EPA system ID: CA3200127; phone on file: 530-701-2680. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Arlington Heights Mhp's lead record
That is up 2.28 ppb from 0 ppb in the period ending 2019. The highest 90th-percentile result EPA holds for Arlington Heights Mhp is 2.28 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2.28 ppb |
| 2019 | 0 (not detected) |
| 2016 | 0 (not detected) |
How Arlington Heights Mhp compares
Of the 2,884 California systems with a lead result, the median latest reading is 0 ppb; 30 are over 15 ppb right now and 215 have gone over at some point. Arlington Heights Mhp's 2.28 ppb sits at the 80th percentile in California and the 75th nationally (higher means more lead).
Nearby utilities
26 other systems share Plumas County; 2 of them have a higher latest lead result than Arlington Heights Mhp. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| American Valley Csd | 3,778 | 0.3 ppb |
| Chester Public U.D. | 2,187 | 0 (not detected) |
| City Of Portola | 2,100 | 2 ppb |
| Hamilton Branch Csd | 1,874 | 0 (not detected) |
| West Almanor M.W.C. | 1,464 | 0 (not detected) |
| Ivcsd-Greenville | 795 | 1.49 ppb |
| Graeagle Water Company | 737 | 0 (not detected) |
| Grizzly Lake Csd-Delleker | 657 | 0 (not detected) |
| Whitehawk Ranch Mwc | 540 | 0 (not detected) |
| Lake Almanor Country Club Mwc | 500 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Live Oak, CA 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 Arlington Heights Mhp 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. Size matters more than most people expect: small vs large water systems.