Riverbend Mhp, CA
Lead detected, under the action levels
Latest 90th-percentile lead: 1 ppb (monitoring period 2025-2027). 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.
Who runs the water here
Riverbend Mhp serves about 500 people through 163 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws surface water, in Tulsa County, California. EPA system ID: OK3007232; phone on file: 918-369-3030. They can tell you what your service line is made of and whether they pay to replace it.
Riverbend Mhp's lead record
Against the period ending 2026 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Riverbend Mhp is 1 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2027 | 1 ppb |
| 2026 | 0 (not detected) |
| 2017 | 0 (not detected) |
| 2016 | 0 (not detected) |
Where this result ranks
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. Riverbend Mhp's 1 ppb sits at the 70th percentile in California and the 53rd nationally (higher means more lead).
Next steps for San Jose, CA
Test your own tap with a certified lab first-draw sample; San Jose, 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 Riverbend Mhp 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. Size matters more than most people expect: small vs large water systems.