We read 18 results from Grant City Pws’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Serves about 850 people · Water system ID MO1010324 · 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 |
|---|---|---|---|---|
| Lead90th percentile of homes tested, 0 over the action level · sampled 2023 · Customer taps · 2025 report, page 2 | 4.45 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal22x the health goal |
| Aluminumhighest measured · range 0.02 to 0.02 · Purchased water (wholesaler) · 2025 report, page 3 | 0.02 ppm | — | 0.2 ppm guideline | Within the guideline |
| Chloridehighest measured · range 20 to 20 · Purchased water (wholesaler) · 2025 report, page 3 | 20 ppm | — | 250 ppm guideline | Within the guideline |
| Copper90th percentile of homes tested, 0 over the action level · sampled 2023 · Customer taps · 2025 report, page 2 | 0.12 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 21.3 to 41.8 · DBPDUAL-02, highest of 3 sources · 2025 report, page 2 | 28 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 20.4 to 73.6 · DBPDUAL-01, highest of 3 sources · 2025 report, page 2 | 54 ppb | None set | 80 ppb | Below the legal limit |
| Manganesehighest measured · range 0.0039 to 0.0039 · Purchased water (wholesaler) · 2025 report, page 3 | 0.0039 ppm | — | 0.05 ppm guideline | Within the guideline |
| pHhighest measured · range 7.91 to 7.91 · Purchased water (wholesaler) · 2025 report, page 3 | 7.91 | — | — | Normal range |
| Sulfatehighest measured · range 13.7 to 13.7 · Purchased water (wholesaler) · 2025 report, page 3 | 13.7 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidshighest measured · range 156 to 156 · Purchased water (wholesaler) · 2025 report, page 3 | 156 ppm | — | 500 ppm guideline | Within the guideline |
| Zinchighest measured · range 0.0054 to 0.0054 · Purchased water (wholesaler) · 2025 report, page 3 | 0.0054 ppm | — | 5 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 122 to 122 · Purchased water (wholesaler), highest of 2 sources · 2025 report, page 3 | 122 ppm | None set | None | No health limit |
| Calciumhighest measured · range 36.3 to 36.3 · Purchased water (wholesaler) · 2025 report, page 3 | 36.3 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 6.96 to 6.96 · Purchased water (wholesaler) · 2025 report, page 3 | 6.96 gpg (119 ppm) | — | — | Moderately hard |
| Magnesiumhighest measured · range 6.88 to 6.88 · Purchased water (wholesaler) · 2025 report, page 3 | 6.88 ppm | None set | None | No health limit |
| Nickelhighest measured · range 1.91 to 1.91 · printed as 0.00191 MG/L · Purchased water (wholesaler) · 2025 report, page 3 | 1.91 ppb | None set | None | No health limit |
| Potassiumhighest measured · range 4.05 to 4.05 · Purchased water (wholesaler) · 2025 report, page 3 | 4.05 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 15.9 to 15.9 · Purchased water (wholesaler) · 2025 report, page 3 | 15.9 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. 7 numbers we weren’t sure about are held back until a person checks.
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: Missouri water quality · All states · Something look wrong? Tell us