We read 15 results from Gswc - Culver City’s 2025 water quality report. No results over a legal limit; 3 above a health goal or guideline.
Serves about 38,213 people · Water system ID CA1910030 · 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 |
|---|---|---|---|---|
| Bromatehighest running annual average · range ND to 12 · listed as a violation in the report · Distribution system · 2025 report, page 9 | 4.1 ppb | 0.1 ppb | 10 ppb | Above the health goal41x the health goal |
| Lead90th percentile of 32 homes tested, 0 over the action level · listed as a violation in the report · Customer taps · 2025 report, page 9 | 6.2 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal31x the health goal |
| Uraniumaverage · range ND to 4.47 · listed as a violation in the report · printed as 1 pCi/L · sampled 2023 · Source water · 2025 report, page 8 | 1.49 ppb | 0.6 ppb | 30 ppb | Above the health goal2.5x the health goal |
| Aluminumaverage · range ND to 0.1 · listed as a violation in the report · Source water · 2025 report, page 8 | 0.1 ppm | — | 0.2 ppm guideline | Within the guideline |
| Chlorideaverage · range 46 to 99 · Source water · 2025 report, page 8 | 78 ppm | — | 250 ppm guideline | Within the guideline |
| Chlorineaverage · range ND to 3.1 · listed as a violation in the report · Distribution system · 2025 report, page 9 | 1.6 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of 32 homes tested, 0 over the action level · listed as a violation in the report · Customer taps · 2025 report, page 9 | 0.09 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range ND to 5.2 · listed as a violation in the report · Distribution system · 2025 report, page 9 | 6.5 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 12 to 20 · listed as a violation in the report · Distribution system · 2025 report, page 9 | 23 ppb | None set | 80 ppb | Below the legal limit |
| Fluorideaverage · range 0.5 to 0.8 · listed as a violation in the report · Source water · 2025 report, page 8 | 0.7 ppm | 1 ppm | 2 ppm | Below the health goal |
| Sulfateaverage · range 64 to 218 · Source water · 2025 report, page 8 | 140 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidsaverage · range 293 to 625 · Source water · 2025 report, page 8 | 459 ppm | — | 500 ppm guideline | Within the guideline |
| Hardnessaverage · range 8.01 to 16.4 · Source water · 2025 report, page 8 | 11.9 gpg (203 ppm) | — | — | Very hard |
| Lithiumaverage · range 24 to 60 · sampled 2024 · Source water · 2025 report, page 8 | 45 ppb | None set | None | No health limit |
| Sodiumaverage · range 46 to 100 · Source water · 2025 report, page 8 | 75 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 Gswc - Culver City’s water between Nov 2023 and Aug 2024. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- Lithium60 ppbFound in 4 of 4 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.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
More districts: California water quality · All states · Something look wrong? Tell us