Smwd - Sj Ground Water Plant, CA
No lead results on file with EPA
Latest 90th-percentile lead: no result on file. The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. EPA's database has no Lead and Copper Rule results for this system. Without them there is nothing to go on, so a tap test is the only way to know.
Who runs the water here
Smwd - Sj Ground Water Plant serves about 0 people through 2 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Orange County, California. EPA system ID: CA3010120; phone on file: 949-459-6546. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Nearby utilities
39 other systems share Orange County. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Irvine Ranch Water District | 450,323 | 0 (not detected) |
| City Of Anaheim | 350,254 | 0 (not detected) |
| City Of Santa Ana | 316,184 | 0 (not detected) |
| City Of Huntington Beach | 201,000 | 0 (not detected) |
| City Of Garden Grove | 174,226 | 0 (not detected) |
| Moulton Niguel Water District | 168,315 | 0 (not detected) |
| Santa Margarita Water District | 165,275 | 0 (not detected) |
| City Of Fullerton | 140,054 | 1.5 ppb |
| City Of Orange | 120,770 | 2.33 ppb |
| Golden State Wc - West Orange County | 114,693 | 2.2 ppb |
Next steps for Rancho Santa Margarita, CA
Test your own tap with a certified lab first-draw sample; Rancho Santa Margarita, 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 Smwd - Sj Ground Water Plant 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Size matters more than most people expect: small vs large water systems.