Cal Am Water Company - Ambler Park, CA
Lead detected, under the action levels
Latest 90th-percentile lead: 1 ppb (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. 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
Cal Am Water Company - Ambler Park serves about 1,370 people through 415 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Monterey County, California. EPA system ID: CA2710006; phone on file: 831-646-3241. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Cal Am Water Company - Ambler Park's lead record
Against the period ending 2023 (2 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Cal Am Water Company - Ambler Park is 2 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 1 ppb |
| 2023 | 2 ppb |
| 2020 | 0 (not detected) |
| 2017 | 0 (not detected) |
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. Cal Am Water Company - Ambler Park's 1 ppb sits at the 70th percentile in California and the 54th nationally (higher means more lead).
Neighbouring systems
155 other systems share Monterey County; 73 of them have a higher latest lead result than Cal Am Water Company - Ambler Park. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Cal Am Water Company - Monterey | 128,928 | 1 ppb |
| Cwsc Salinas | 114,286 | 1.2 ppb |
| Alco Water Service | 56,253 | 0 (not detected) |
| Marina Coast Water District | 38,918 | 0 (not detected) |
| Soledad, City Of | 19,732 | 0 (not detected) |
| Greenfield, City Of | 18,967 | 0 (not detected) |
| Cwsc King City | 14,046 | 0 (not detected) |
| Gonzales, City Of | 8,333 | 0 (not detected) |
| Cwsc Salinas Hills | 7,733 | 0.9 ppb |
| Castroville Community Services District | 7,515 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Pacific Grove, 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 Cal Am Water Company - Ambler 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. Systems that went over once often dip back under; here is what that means.