Bakman Water-Rolling Hills, CA
Lead detected, under the action levels
Latest 90th-percentile lead: 4.3 ppb (monitoring period 2026-2026). 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.
Bakman Water-Rolling Hills at a glance
Bakman Water-Rolling Hills serves about 1,107 people through 353 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Madera County, California. EPA system ID: CA2010009; phone on file: 559-255-0324. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
Against the period ending 2022 (4.2 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Bakman Water-Rolling Hills is 11.7 ppb across 4 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 4.3 ppb |
| 2022 | 4.2 ppb |
| 2019 | 11.7 ppb over 10 |
| 2016 | 6.4 ppb |
Against other California systems
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. Bakman Water-Rolling Hills's 4.3 ppb sits at the 90th percentile in California and the 89th nationally (higher means more lead).
Neighbouring systems
67 other systems share Madera County; 13 of them have a higher latest lead result than Bakman Water-Rolling Hills. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Madera | 66,560 | 3 ppb |
| Chowchilla City Water Dept | 13,916 | 0 (not detected) |
| Riverstone/Rootcreek Water District | 10,276 | 1.2 ppb |
| Madera Valley Water Company | 6,524 | 0 (not detected) |
| Yosemite Spring Park Util Co | 5,300 | 0 (not detected) |
| Tesoro Viejo Master Mwc, Inc. | 4,660 | 0 (not detected) |
| Cal Am - Oakhurst | 3,710 | 5 ppb |
| Valley State Prison | 3,151 | 0 (not detected) |
| Madera Co Md10a-Madera Ranchos | 3,072 | 5.4 ppb |
| Cal Am - Bass Lake | 3,066 | 2 ppb |
Next steps for Fresno, CA
Test your own tap with a certified lab first-draw sample; Fresno, 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 Bakman Water-Rolling Hills 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.