Riverfront Mutual Water Company, CA
Lead detected, under the action levels
Latest 90th-percentile lead: 1.6 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. 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.
Riverfront Mutual Water Company at a glance
Riverfront Mutual Water Company serves about 25 people through 12 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Imperial County, California. EPA system ID: CA1300664; phone on file: 619-933-7015. They can tell you what your service line is made of and whether they pay to replace it.
Riverfront Mutual Water Company's lead record
That is down 3.9 ppb from 5.5 ppb in the period ending 2020. The highest 90th-percentile result EPA holds for Riverfront Mutual Water Company is 6 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.6 ppb |
| 2020 | 5.5 ppb |
| 2020 | 5.5 ppb |
| 2020 | 5.5 ppb |
| 2019 | 6 ppb |
| 2018 | 4 ppb |
| 2017 | 6 ppb |
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. Riverfront Mutual Water Company's 1.6 ppb sits at the 75th percentile in California and the 64th nationally (higher means more lead).
Other water systems in Imperial County
28 other systems share Imperial County; 4 of them have a higher latest lead result than Riverfront Mutual Water Company. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| El Centro, City Of | 44,124 | 0 (not detected) |
| Calexico, City Of | 40,357 | 0 (not detected) |
| Brawley, City Of | 26,862 | 0 (not detected) |
| Imperial, City Of | 22,102 | 0 (not detected) |
| Gswc - Calipatria | 7,475 | 0 (not detected) |
| Heber Public Utility District | 7,312 | 0 (not detected) |
| Holtville, City Of | 6,355 | 0.9 ppb |
| Calipatria State Prison | 4,800 | 1.6 ppb |
| Centinela State Prison | 4,100 | 1.6 ppb |
| Westmorland, City Of | 2,202 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Alpine, 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 Riverfront Mutual Water Company 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. The action level is dropping - the 10 ppb rule from 2027.