What was found in Maple Hill's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 7105 µg/L 71% of the EPA limit 10000 µg/L Main supplier: MAPLE HILL, CITY OF · 646 people · 2019 | 1/2 | SYR4 |
| Copper | 1900 µg/L 146% of the EPA limit, at the 95th percentile of samples — 1300 µg/L Main supplier: MAPLE HILL, CITY OF · 646 people · 2018 | 2/2 | SYR4 |
| Barium | 188.5 µg/L 9.4% of the EPA limit 2000 µg/L Main supplier: MAPLE HILL, CITY OF · 646 people · 2017 | 1/2 | SYR4 |
| TTHM | 23 µg/L 29% of the EPA limit 80 µg/L Main supplier: MAPLE HILL, CITY OF · 646 people · 2019
Highest in the city: 51.5 µg/L — WABAUNSEE CO RWD 1 · 400 people · 2019 | 2/2 | SYR4 |
| Chloroform | 15 µg/L No EPA limit set Main supplier: MAPLE HILL, CITY OF · 646 people · 2019
Highest in the city: 42 µg/L — WABAUNSEE CO RWD 1 · 400 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 9.44 µg/L 16% of the EPA limit 60 µg/L Main supplier: MAPLE HILL, CITY OF · 646 people · 2019
Highest in the city: 31.25 µg/L — WABAUNSEE CO RWD 1 · 400 people · 2019 | 2/2 | SYR4 |
| Lithium | 16.9 µg/L No EPA limit set Main supplier: MAPLE HILL, CITY OF · 646 people · 2025 | 1/2 | UCMR-5 |
| Trichloroacetic Acid | 4.926 µg/L No EPA limit set Main supplier: MAPLE HILL, CITY OF · 646 people · 2019
Highest in the city: 14.5 µg/L — WABAUNSEE CO RWD 1 · 400 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 4.38 µg/L No EPA limit set Main supplier: MAPLE HILL, CITY OF · 646 people · 2019
Highest in the city: 13.75 µg/L — WABAUNSEE CO RWD 1 · 400 people · 2019 | 2/2 | SYR4 |
| Lead | 4.175 µg/L 28% of the EPA limit 15 µg/L Main supplier: MAPLE HILL, CITY OF · 646 people · 2018
Highest in the city: 10.56 µg/L — WABAUNSEE CO RWD 1 · 400 people · 2017 | 2/2 | SYR4 |
| Bromodichloromethane | 2.875 µg/L No EPA limit set Main supplier: MAPLE HILL, CITY OF · 646 people · 2019
Highest in the city: 9.775 µg/L — WABAUNSEE CO RWD 1 · 400 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 4.66 µg/L No EPA limit set Main supplier: MAPLE HILL, CITY OF · 646 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 3.8 µg/L No EPA limit set Main supplier: MAPLE HILL, CITY OF · 646 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 2.8 µg/L No EPA limit set Main supplier: MAPLE HILL, CITY OF · 646 people · 2019
Highest in the city: 3.615 µg/L — WABAUNSEE CO RWD 1 · 400 people · 2019 | 2/2 | SYR4 |
| Selenium | 3.255 µg/L 6.5% of the EPA limit 50 µg/L Main supplier: MAPLE HILL, CITY OF · 646 people · 2017 | 1/2 | SYR4 |
| Arsenic | 2.57 µg/L 26% of the EPA limit 10 µg/L Main supplier: MAPLE HILL, CITY OF · 646 people · 2017 | 1/2 | SYR4 |
| Bromoform | 2.325 µg/L No EPA limit set Main supplier: MAPLE HILL, CITY OF · 646 people · 2019 | 1/2 | SYR4 |
| Chromium | 1.095 µg/L 1.1% of the EPA limit 100 µg/L Main supplier: MAPLE HILL, CITY OF · 646 people · 2017 | 1/2 | SYR4 |
| Monobromoacetic Acid | 0.7900 µg/L No EPA limit set Main supplier: MAPLE HILL, CITY OF · 646 people · 2019 | 1/2 | SYR4 |
| Atrazine | 0.0641 µg/L 2.1% of the EPA limit 3 µg/L Main supplier: MAPLE HILL, CITY OF · 646 people · 2018 | 1/2 | SYR4 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: MAPLE HILL, CITY OF · 646 people · 2024
Highest in the city: 0.0014 mg/L — WABAUNSEE CO RWD 1 · 400 people · 2023 | 2/2 | LCR |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Maple Hill
| Supplier | Population served |
|---|---|
| MAPLE HILL, CITY OF | 646 |
| WABAUNSEE CO RWD 1 | 400 |
Frequently asked questions about Maple Hill tap water
Is Maple Hill tap water safe to drink?
EPA testing detected 21 contaminants in the water serving Maple Hill. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Maple Hill?
2 public water suppliers report drinking-water monitoring for Maple Hill, Kansas to the EPA. Each is listed above with its population served.
What contaminants are in Maple Hill's water?
The contaminants EPA monitoring detected in Maple Hill include Nitrate, Copper, Barium, TTHM, Chloroform. The full list, with the level at the main supplier and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.