- EPA's UCMR 5 testing looked for 30 contaminants here and found 8.
- PFOS (a PFAS): found in 6 of 6 samples, average 43.5 ppt, highest 53 ppt (EPA UCMR 5 testing, Aug 2023–Oct 2024) PFOA or PFOS averaged above 4.0 ppt in UCMR 5 testing
- PFOA (a PFAS): found in 4 of 6 samples, average 9.3 ppt, highest 16 ppt (EPA UCMR 5 testing, Aug 2023–Oct 2024) PFOA or PFOS averaged above 4.0 ppt in UCMR 5 testing
- PFBA (a PFAS): found in 5 of 6 samples, average 8.9 ppt, highest 14 ppt (EPA UCMR 5 testing, Aug 2023–Oct 2024)
- PFBS (a PFAS): found in 6 of 6 samples, average 7.8 ppt, highest 11 ppt (EPA UCMR 5 testing, Aug 2023–Oct 2024)
- PFHxS (a PFAS): found in 6 of 6 samples, average 6.9 ppt, highest 8.6 ppt (EPA UCMR 5 testing, Aug 2023–Oct 2024)
- PFPeA (a PFAS): found in 4 of 6 samples, average 4.6 ppt, highest 9.2 ppt (EPA UCMR 5 testing, Aug 2023–Oct 2024)
- PFHxA (a PFAS): found in 4 of 6 samples, average 4.4 ppt, highest 9.1 ppt (EPA UCMR 5 testing, Aug 2023–Oct 2024)
- PFHpA (a PFAS): found in 4 of 6 samples, average 2.7 ppt, highest 4.9 ppt (EPA UCMR 5 testing, Aug 2023–Oct 2024)
- Lead, 90th percentile: 0 ppb at the latest result in EPA records for a monitoring period that ran on or after July 1, 2021, at or below EPA's 15 ppb action level (EPA SDWIS, monitoring period Jan 1, 2024–Dec 31, 2026). The 90th percentile is a system-wide measure from homes sampled under EPA's lead rule; it isn't a result for your home.
Public EPA test results
What EPA records show for Montebello Land & Water CO.
EPA CA1910091 · serves Los Angeles County, CA · about 26,554 people (EPA SDWIS)
This report shows EPA's federal records for this water system: UCMR 5 testing, lead testing and violations. It isn't a test of the water at your tap, and it has no Water Score.
Public EPA test results
Montebello Land & Water CO. (EPA CA1910091)
What EPA records show for Montebello Land & Water CO., as of October 14, 2026
We found no health-based violations in EPA's records for this system (CA1910091) since July 1, 2021, as of October 14, 2026.
Source: EPA ECHO record for Montebello Land & Water CO. (SDWIS). Data as of October 14, 2026.
Lead, 90th percentile: 0 ppb at the latest result in EPA records for a monitoring period that ran on or after July 1, 2021, at or below EPA's 15 ppb action level (EPA SDWIS, monitoring period Jan 1, 2024–Dec 31, 2026). The 90th percentile is a system-wide measure from homes sampled under EPA's lead rule; it isn't a result for your home.
This water system averaged above 4.0 ppt for PFOA or PFOS in EPA's UCMR 5 testing.
EPA's UCMR 5 testing looked for 30 contaminants here and found 8.
Source: EPA records (SDWIS, UCMR 5). SDWIS: data as of Oct 14, 2026. EPA UCMR 5 data, samples through June 2026.
Your water bill names your utility.
Does Montebello Land & Water CO. use chloramine?
We didn't find chloramine in Montebello Land & Water CO.'s EPA treatment records. That's not a complete list; your utility's annual water quality report says which disinfectant it uses.
What EPA records show for this system
Reported results in EPA records (data as of Oct 14–15, 2026)
Source: EPA SDWIS (ECHO SDWA bulk download), data as of Oct 14, 2026
Source: EPA UCMR 5 occurrence data, data as of Oct 15, 2026
These are EPA's public records for this water system, shown as of October 14, 2026. If you represent this utility, or think a record here is wrong, tell us: Report an error. If the error is in EPA's own records, your state drinking water program can correct it there, and this page updates at our next data refresh.
Sources
- EPA ECHO detailed facility report: Montebello Land & Water CO. (CA1910091), July to September 2026 extract
- EPA SDWIS (ECHO SDWA bulk download), July to September 2026 extract
- EPA UCMR 5 occurrence data, samples through June 2026
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