We read 18 results from Marble Hill South Pws’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Serves about 862 people · Water system ID MO4010483 · 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 |
|---|---|---|---|---|
| Ironhighest measured · range 0.02 to 1.17 · sampled 2024 · 2025 report, page 3 | 1.17 ppm | — | 0.3 ppm guideline | Above the guideline3.9x the guideline (taste, odor or stains; not a health limit) |
| Aluminumhighest measured · range 0.03 to 0.05 · sampled 2024 · 2025 report, page 3 | 0.05 ppm | — | 0.2 ppm guideline | Within the guideline |
| Bariumhighest measured · range 0.06 to 0.07 · sampled 2024 · 2025 report, page 2 | 0.07 ppm | 2 ppm | 2 ppm | Below the health goal |
| Copper90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | 0.13 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (TTHM)highest running annual average · range 2.92 to 2.92 · DBPDUAL-01, highest of 2 sources · 2025 report, page 2 | 3 ppb | None set | 80 ppb | Below the legal limit |
| Lead90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| Manganesehighest measured · range 0.0011 to 0.04 · sampled 2024 · 2025 report, page 3 | 0.04 ppm | — | 0.05 ppm guideline | Within the guideline |
| Nitrate (as N)highest measured · range 1.02 to 1.02 · 2025 report, page 2 | 1.02 ppm | 10 ppm | 10 ppm | Below the health goal |
| pHhighest measured · range 7.72 to 7.84 · sampled 2024 · highest of 2 sources · 2025 report, page 3 | 7.84 | — | — | Normal range |
| Total dissolved solidshighest measured · range 281 to 281 · sampled 2024 · highest of 2 sources · 2025 report, page 3 | 281 ppm | — | 500 ppm guideline | Within the guideline |
| Zinchighest measured · range 0.01 to 0.09 · sampled 2024 · highest of 2 sources · 2025 report, page 3 | 0.09 ppm | — | 5 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 295 to 295 · sampled 2024 · Purchased water (wholesaler), highest of 2 sources · 2025 report, page 3 | 295 ppm | None set | None | No health limit |
| Calciumhighest measured · range 65 to 65 · sampled 2024 · Purchased water (wholesaler), highest of 2 sources · 2025 report, page 3 | 65 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 18.1 to 18.1 · sampled 2024 · Purchased water (wholesaler), highest of 2 sources · 2025 report, page 3 | 18.1 gpg (310 ppm) | — | — | Very hard |
| Magnesiumhighest measured · range 35.9 to 35.9 · sampled 2024 · Purchased water (wholesaler), highest of 2 sources · 2025 report, page 3 | 35.9 ppm | None set | None | No health limit |
| Nickelhighest measured · range 2.26 to 4.72 · printed as 0.00472 MG/L · sampled 2024 · highest of 2 sources · 2025 report, page 3 | 4.72 ppb | None set | None | No health limit |
| Potassiumhighest measured · range 1.26 to 2.04 · sampled 2024 · highest of 2 sources · 2025 report, page 3 | 2.04 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 3.32 to 3.32 · sampled 2024 · Purchased water (wholesaler), highest of 2 sources · 2025 report, page 3 | 3.32 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. 3 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.
More districts: Missouri water quality · All states · Something look wrong? Tell us