Pico Rivera - City, Water Dept. Water Quality (California) – 2025 Report Results

We read 16 results from Pico Rivera - City, Water Dept.’s 2025 water quality report. No results over a legal limit; 6 above a health goal or guideline.

Serves about 40,600 people · Water system ID CA1910042 · Read the district’s 2025 report (opens in a new tab)

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Results from the 2025 report

Each number is copied from the district’s report and links to the page it’s printed on. Where the report lists several plants, wells or purchased water, the highest is shown.

Contaminant	Result	Health goal	Legal limit	What it means
Arsenicaverage · range ND to 2 · Wells · 2025 report, page 4	0.62 ppb	0.004 ppb	10 ppb	Above the health goal155x the health goal
Chromium-6average · range 0.05 to 0.86 · Wells · 2025 report, page 4	0.43 ppb	0.02 ppb	10 ppb	Above the health goal22x the health goal
Copper90th percentile of 36 homes tested, 1 over the action level · Customer taps · 2025 report, page 4	0.72 ppm	0.3 ppm	1.3 ppm (action level)	Above the health goal2.4x the health goal
Gross alpha (radioactivity)average · range ND to 3.56 · Wells · 2025 report, page 4	0.91 pCi/L	0 pCi/L	15 pCi/L	Above the health goalThe health goal is zero
Lead90th percentile of 36 homes tested, 0 over the action level · Customer taps · 2025 report, page 4	0.37 ppb	0.2 ppb	15 ppb (action level)	Above the health goal1.9x the health goal
Uraniumaverage · range ND to 2.53 · printed as 0.55 pCi/l · Wells · 2025 report, page 4	0.82 ppb	0.6 ppb	30 ppb	Above the health goal1.4x the health goal
Bariumaverage · range ND to 0.09 · Wells · 2025 report, page 4	0.03 ppm	2 ppm	2 ppm	Below the health goal
Chlorideaverage · range 20 to 73 · Wells · 2025 report, page 4	38.1 ppm	—	250 ppm guideline	Within the guideline
Fluorideaverage · range 0.28 to 0.36 · Wells · 2025 report, page 4	0.33 ppm	1 ppm	2 ppm	Below the health goal
Nitrate (as N)average · range 1.2 to 2.9 · Wells · 2025 report, page 4	2.1 ppm	10 ppm	10 ppm	Below the health goal
Sulfateaverage · range 26 to 91 · Wells · 2025 report, page 4	54.3 ppm	—	250 ppm guideline	Within the guideline
Total dissolved solidsaverage · range 200 to 580 · Wells · 2025 report, page 4	314 ppm	—	500 ppm guideline	Within the guideline
Hardnessaverage · range 5.19 to 12.4 · Wells · 2025 report, page 4	9.22 gpg (158 ppm)	—	—	Hard
Nickelaverage · range ND to 3.1 · Wells · 2025 report, page 4	0.52 ppb	None set	None	No health limit
PFBA (a PFAS)average · range ND to 11 · After treatment · 2025 report, page 4	7.3 ppt	None set	None	No health limit
Sodiumaverage · range 32 to 63 · Wells · 2025 report, page 4	47 ppm	None set	None	No health limit

Utility results describe the whole system, measured where water enters the pipes, not your tap. Your home’s plumbing can add lead or copper.

EPA testing for PFAS and lithium

EPA’s own nationwide testing (UCMR 5) found these in Pico Rivera - City, Water Dept.’s water between Feb 2024 and Aug 2024. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.

PFOA16 pptFound in 14 of 15 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
PFOS30 pptFound in 14 of 15 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
PFHxS5.6 pptFound in 4 of 15 samples · highest resultNo federal limit in force for this one
PFBS10 pptFound in 14 of 15 samples · highest resultNo federal limit in force for this one

Source: EPA UCMR 5 occurrence data. The highest single result is shown; one high sample doesn’t mean every glass is that high.

What you can do

Nothing here is an emergency notice: if the district has a violation, it must tell customers directly. If you’d like to lower these at your tap, these are the treatments that remove them, and the catalog shows the models certified for each. Ranking is by certified removal; commissions never change the order.