We read 21 results from Golden State Water Company - Bay Point’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Serves about 23,731 people · Water system ID CA0710002 · 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 |
|---|---|---|---|---|
| Chromium-6average · range 0.2 to 1.3 · Bay Point source water · 2025 report, page 8 | 0.54 ppb | 0.02 ppb | 10 ppb | Above the health goal27x the health goal |
| Chloramineaverage · range 0.2 to 3.3 · Bay Point distribution · 2025 report, page 9 | 2.5 ppm | None set | 4 ppm | Below the legal limit |
| Chlorideaverage · range 22 to 140 · Bay Point source water · 2025 report, page 8 | 78 ppm | — | 250 ppm guideline | Within the guideline |
| Coloraverage · range ND to 5 · Bay Point source water · 2025 report, page 8 | 2 CU | — | 15 CU guideline | Within the guideline |
| Copper90th percentile of 37 homes tested · sampled 2023 · Customer taps · 2025 report, page 9 | 0.08 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)average · range 2.5 to 11 · Bay Point distribution · 2025 report, page 9 | 7.2 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)as reported · Bay Point distribution · 2025 report, page 9 | 31 ppb | None set | 80 ppb | Below the legal limit |
| Fluorideaverage · range 0.2 to 0.9 · Bay Point source water · 2025 report, page 8 | 0.6 ppm | 1 ppm | 2 ppm | Below the health goal |
| Lead90th percentile of 37 homes tested · sampled 2023 · Customer taps · 2025 report, page 9 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| Nitrate (as N)average · range ND to 3.2 · Bay Point source water · 2025 report, page 8 | 1 ppm | 10 ppm | 10 ppm | Below the health goal |
| pHaverage · range 8 to 8.8 · Bay Point source water · 2025 report, page 8 | 8.3 | — | — | Normal range |
| Sulfateaverage · range 37 to 320 · Bay Point source water · 2025 report, page 8 | 140 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidsaverage · range 137 to 960 · Bay Point source water · 2025 report, page 8 | 250 ppm | — | 500 ppm guideline | Within the guideline |
| Turbidity (cloudiness)highest measured · Bay Point source water · 2025 report, page 8 | 0.08 NTU | None set | 1 NTU | Below the legal limit |
| Alkalinityaverage · range 47 to 240 · Bay Point source water · 2025 report, page 8 | 120 ppm | None set | None | No health limit |
| Calciumaverage · range 11 to 36 · Bay Point source water · 2025 report, page 8 | 22 ppm | None set | None | No health limit |
| Conductivityaverage · range 256 to 640 · Bay Point source water · 2025 report, page 8 | 420 µS/cm | None set | None | No health limit |
| Hardnessaverage · range 3.16 to 9.94 · Bay Point source water · 2025 report, page 8 | 6.43 gpg (110 ppm) | — | — | Moderately hard |
| Magnesiumaverage · range 6.5 to 20 · Bay Point source water · 2025 report, page 8 | 13 ppm | None set | None | No health limit |
| Potassiumaverage · range 1.3 to 3.3 · Bay Point source water · 2025 report, page 8 | 2.5 ppm | None set | None | No health limit |
| Sodiumaverage · range 29 to 260 · Bay Point source water · 2025 report, page 8 | 120 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.
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