We read 7 results from City of South Pasadena’s 2024 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Serves about 25,329 people · Water system ID CA1910154 · Read the district’s 2024 report (opens in a new tab)
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Results from the 2024 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 |
|---|---|---|---|---|
| Total dissolved solidsaverage · range 570 to 690 · Metropolitan imported water, highest of 2 sources · 2024 report, page 6 | 630 ppm | — | 500 ppm guideline | Above the guideline1.3x the guideline (taste, odor or stains; not a health limit) |
| Chlorideaverage · range 96 to 120 · Metropolitan imported water, highest of 3 sources · 2024 report, page 6 | 110 ppm | — | 250 ppm guideline | Within the guideline |
| Fluorideaverage · range 0.5 to 1.2 · Pasadena groundwater (Pasadena Zone only), highest of 2 sources · 2024 report, page 6 | 0.8 ppm | 1 ppm | 2 ppm | Below the health goal |
| Sulfateaverage · range 200 to 250 · Metropolitan imported water, highest of 3 sources · 2024 report, page 6 | 230 ppm | — | 250 ppm guideline | Within the guideline |
| Conductivityaverage · range 520 to 880 · Pasadena groundwater (Pasadena Zone only), highest of 2 sources · 2024 report, page 6 | 660 µS/cm | None set | None | No health limit |
| Hardnessaverage · range 14 to 17.5 · Metropolitan imported water, highest of 3 sources · 2024 report, page 7 | 15.8 gpg (270 ppm) | — | — | Very hard |
| Sodiumaverage · range 93 to 120 · Metropolitan imported water, highest of 3 sources · 2024 report, page 7 | 110 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.
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.
Salty taste / high TDS
Found: Total dissolved solids
What removes it: Reverse osmosis.
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