We read 12 results from City of Sacramento Main’s 2025 water quality report. No results over a legal limit or above a health goal.
Serves about 520,407 people · Water system ID CA3410020 · Read the district’s 2025 report (opens in a new tab)
Open this district in the water lookupCompare with your own test results, see the district map and get matched filters.
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 |
|---|---|---|---|---|
| Chlorideaverage · range 6.7 to 36 · System · 2025 report, page 7 | 23 ppm | — | 250 ppm guideline | Within the guideline |
| Chlorineaverage · range 0.2 to 1.4 · Distribution system · 2025 report, page 6 | 0.8 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of 56 homes tested, 0 over the action level · sampled 2023 · Customer taps · 2025 report, page 6 | 0.06 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)average · range ND to 31 · Distribution system · 2025 report, page 6 | 29 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)average · Distribution system · 2025 report, page 6 | 63 ppb | None set | 80 ppb | Below the legal limit |
| Fluorideaverage · range 0.2 to 1 · Treated water · 2025 report, page 6 | 0.7 ppm | 1 ppm | 2 ppm | Below the health goal |
| Lead90th percentile of 56 homes tested, 0 over the action level · sampled 2023 · Customer taps · 2025 report, page 6 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| Nitrate (as N)average · range ND to 3 · System · 2025 report, page 6 | 1 ppm | 10 ppm | 10 ppm | Below the health goal |
| Sulfateaverage · range ND to 12 · System · 2025 report, page 7 | 7 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidsaverage · range 180 to 280 · System · 2025 report, page 7 | 205 ppm | — | 500 ppm guideline | Within the guideline |
| Hardnessaverage · range 0.88 to 9.01 · System · 2025 report, page 7 | 4.85 gpg (83 ppm) | — | — | Moderately hard |
| Sodiumaverage · range 18 to 74 · System · 2025 report, page 7 | 26 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. 2 numbers we weren’t sure about are held back until a person checks.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in City of Sacramento Main’s water between Aug 2023 and May 2024. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- PFOA17.3 pptFound in 2 of 28 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
- PFOS41.4 pptFound in 6 of 28 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
- PFHxS19.1 pptFound in 6 of 28 samples · highest resultNo federal limit in force for this one
- PFBS6.2 pptFound in 4 of 28 samples · highest resultNo federal limit in force for this one
- Lithium25.4 ppbFound in 2 of 28 samples · highest resultAbove EPA’s health reference level of 10 ppb (a guide, not a legal limit)
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.
PFAS ("forever chemicals")
Found: PFOA (EPA testing), PFOS (EPA testing)
What removes it: Reverse osmosis.
More districts: California water quality · All states · Something look wrong? Tell us