132 Investments Water System, CA
Lead detected, under the action levels
Latest 90th-percentile lead: 4.7 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 132 Investments Water System
132 Investments Water System serves about 187 people through 93 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in San Joaquin County, California. EPA system ID: CA3901031; phone on file: 209-640-5733. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
132 Investments Water System's lead record
That is down 6.3 ppb from 11 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for 132 Investments Water System is 11 ppb across 4 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 4.7 ppb |
| 2022 | 11 ppb over 10 |
| 2019 | 0 (not detected) |
| 2018 | 5 ppb |
How 132 Investments Water System 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. 132 Investments Water System's 4.7 ppb sits at the 91st percentile in California and the 90th nationally (higher means more lead).
Nearby utilities
92 other systems share San Joaquin County; 7 of them have a higher latest lead result than 132 Investments Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Stockton | 192,702 | 0 (not detected) |
| California Water Service - Stockton | 182,775 | 0 (not detected) |
| Tracy, City Of | 98,215 | 0 (not detected) |
| Manteca, City Of | 84,928 | 0.4 ppb |
| Lodi, City Of | 67,093 | 0 (not detected) |
| City Of Lathrop | 38,596 | 0 (not detected) |
| City Of Mountain House | 26,400 | 0 (not detected) |
| Ripon, City Of | 15,753 | 0 (not detected) |
| Escalon, City Of | 7,232 | 0 (not detected) |
| San Joaquin County - Lincoln Village | 5,841 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Tracy, 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 132 Investments 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.