Del Oro Water Co.-Johnson Park, CA
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2024-2026). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Who runs the water here
Del Oro Water Co.-Johnson Park serves about 908 people through 275 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Shasta County, California. EPA system ID: CA4510015; phone on file: 530-809-3970. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
That is down 1.71 ppb from 1.71 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for Del Oro Water Co.-Johnson Park is 3.43 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2023 | 1.71 ppb |
| 2023 | 2.58 ppb |
| 2020 | 3.43 ppb |
| 2020 | 3.43 ppb |
| 2017 | 0 (not detected) |
| 2017 | 0 (not detected) |
How Del Oro Water Co.-Johnson Park 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. Del Oro Water Co.-Johnson Park's reported as 0 (not detected) sits at the 41st percentile in California and the 26th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
58 other systems share Shasta County; 38 of them have a higher latest lead result than Del Oro Water Co.-Johnson Park. 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 |
| Mountain Gate C.S.D. | 2,227 | 2.84 ppb |
Your move
Look up your address in Del Oro Water Co.-Johnson Park's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Del Oro Water Co.-Johnson Park 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. A zero today does not rule out a jump later - the rules are tightening in 2027.