Mountain Gate C.S.D., CA
Exceeded the action level in the past
Latest 90th-percentile lead: 2.84 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. 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.
Mountain Gate C.S.D. at a glance
Mountain Gate C.S.D. serves about 2,227 people through 669 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Shasta County, California. EPA system ID: CA4510002; phone on file: 530-275-3002. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
That is down 2287.16 ppb from 2290 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Mountain Gate C.S.D. is 2290 ppb across 3 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 2.84 ppb |
| 2021 | 2290 ppb over 15 |
| 2018 | 0 (not detected) |
How Mountain Gate C.S.D. 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. Mountain Gate C.S.D.'s 2.84 ppb sits at the 84th percentile in California and the 80th nationally (higher means more lead).
Other water systems in Shasta County
58 other systems share Shasta County; 10 of them have a higher latest lead result than Mountain Gate C.S.D.. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Redding | 90,254 | 2.13 ppb |
| Bella Vista Water District | 18,767 | 1.83 ppb |
| City Of Anderson | 11,323 | 2.4 ppb |
| City Of Shasta Lake | 10,371 | 1.13 ppb |
| Clear Creek Csd-Anderson | 8,900 | 3.61 ppb |
| Centerville C.S.D. | 4,244 | 2.09 ppb |
| Cottonwood Water District | 3,316 | 0 (not detected) |
| Shasta C.S.D. | 3,069 | 0.97 ppb |
| Burney Water District | 3,000 | 0.87 ppb |
| Shasta Csa - Jones Valley, #6 | 2,006 | 1.57 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Redding, 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 Mountain Gate C.S.D. whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 111900 ppb (copper action level 1,300 ppb).
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.