Redwood Glen Camp & Conference Ctr, CA
Exceeded the action level in the past
Latest 90th-percentile lead: 2.8 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. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Redwood Glen Camp & Conference Ctr at a glance
Redwood Glen Camp & Conference Ctr serves about 31 people through 14 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws surface water, in San Mateo County, California. EPA system ID: CA4100522; phone on file: 650-879-0320. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Redwood Glen Camp & Conference Ctr's lead record
That is up 2.8 ppb from 0 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Redwood Glen Camp & Conference Ctr is 99 ppb across 8 monitoring periods, 2 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2.8 ppb |
| 2022 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2019 | 9 ppb |
| 2018 | 99 ppb over 15 |
| 2018 | 70 ppb over 15 |
How Redwood Glen Camp & Conference Ctr 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. Redwood Glen Camp & Conference Ctr's 2.8 ppb sits at the 83rd percentile in California and the 79th nationally (higher means more lead).
Neighbouring systems
35 other systems share San Mateo County; 10 of them have a higher latest lead result than Redwood Glen Camp & Conference Ctr. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| California Water Service - San Mateo | 103,536 | 4.4 ppb |
| City Of Daly City | 102,593 | 0 (not detected) |
| City Of Redwood City | 90,043 | 0 (not detected) |
| California Water Service-S San Francisco | 62,609 | 4.1 ppb |
| California Water Service - Bear Gulch | 60,382 | 4 ppb |
| City Of San Bruno | 42,631 | 0 (not detected) |
| North Coast County Water Dist | 38,546 | 0 (not detected) |
| Estero Municipal Improvement District | 36,556 | 0 (not detected) |
| California Water Service - San Carlos | 34,801 | 5.8 ppb |
| City Of Burlingame | 32,453 | 6.3 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Loma Mar, 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 Redwood Glen Camp & Conference Ctr 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. Why an old exceedance still matters: over the limit before, under it now.