Longhorn Mobile Home Community, CA
Lead detected, under the action levels
Latest 90th-percentile lead: 3 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.
Who runs the water here
Longhorn Mobile Home Community serves about 220 people through 113 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Harris County, California. EPA system ID: TX1010587; phone on file: 408-977-0707. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
The highest 90th-percentile result EPA holds for Longhorn Mobile Home Community is 3 ppb across 1 monitoring period, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 3 ppb |
How Longhorn Mobile Home Community 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. Longhorn Mobile Home Community's 3 ppb sits at the 85th percentile in California and the 81st nationally (higher means more lead).
Other water systems in Harris County
4 other systems share Harris County; 0 of them have a higher latest lead result than Longhorn Mobile Home Community. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Westfield Garden Mobile Home Park | 942 | 0 (not detected) |
| R&K Weiman Mhp | 279 | 0 (not detected) |
| Acorn Village Mobile Home Park | 192 | 1.6 ppb |
| Melrose Mhp | 186 | 0.5 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; San Jose, 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 Longhorn Mobile Home Community 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. The action level is dropping - the 10 ppb rule from 2027.