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Tap water quality report

Baldwin City, KS

EPA monitoring detected 15 contaminants across the 2 water suppliers serving Baldwin City. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

2
water suppliers
7,882
people served
15
contaminants found
Kansas rankings Lead in Kansas PFAS in Kansas

What was found in Baldwin City'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.

ContaminantLevel vs EPA limitSuppliersSource
Copper
140 µg/L 11%
of the EPA limit 1300 µg/L
Main supplier: BALDWIN CITY, CITY OF · 4,882 people · 2017
Highest in the city: 182 µg/L — DOUGLAS CO RWD 4 · 3,000 people · 2017
2/2 SYR4
TTHM
79.3 µg/L 99%
of the EPA limit 80 µg/L
Main supplier: BALDWIN CITY, CITY OF · 4,882 people · 2019
Highest in the city: 96.8 µg/L — DOUGLAS CO RWD 4 · 3,000 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
50.3 µg/L 84%
of the EPA limit 60 µg/L
Main supplier: BALDWIN CITY, CITY OF · 4,882 people · 2019
Highest in the city: 68 µg/L — DOUGLAS CO RWD 4 · 3,000 people · 2019
2/2 SYR4
Chloroform
50 µg/L
No EPA limit set
Main supplier: BALDWIN CITY, CITY OF · 4,882 people · 2019
Highest in the city: 57.6 µg/L — DOUGLAS CO RWD 4 · 3,000 people · 2019
2/2 SYR4
Lithium
10.8 µg/L
No EPA limit set
Main supplier: BALDWIN CITY, CITY OF · 4,882 people · 2023
Highest in the city: 53.3 µg/L — DOUGLAS CO RWD 4 · 3,000 people · 2024
2/2 UCMR-5
Dichloroacetic Acid
31.7 µg/L
No EPA limit set
Main supplier: BALDWIN CITY, CITY OF · 4,882 people · 2019
Highest in the city: 47 µg/L — DOUGLAS CO RWD 4 · 3,000 people · 2019
2/2 SYR4
Bromodichloromethane
26.35 µg/L
No EPA limit set
Main supplier: BALDWIN CITY, CITY OF · 4,882 people · 2019
Highest in the city: 29.8 µg/L — DOUGLAS CO RWD 4 · 3,000 people · 2019
2/2 SYR4
Dibromochloromethane
20.35 µg/L
No EPA limit set
Main supplier: BALDWIN CITY, CITY OF · 4,882 people · 2019
2/2 SYR4
Trichloroacetic Acid
11.35 µg/L
No EPA limit set
Main supplier: BALDWIN CITY, CITY OF · 4,882 people · 2019
Highest in the city: 14.2 µg/L — DOUGLAS CO RWD 4 · 3,000 people · 2019
2/2 SYR4
Dibromoacetic Acid
7.8 µg/L
No EPA limit set
Main supplier: BALDWIN CITY, CITY OF · 4,882 people · 2019
2/2 SYR4
Monochloroacetic Acid
6.4 µg/L
No EPA limit set
Main supplier: BALDWIN CITY, CITY OF · 4,882 people · 2019
2/2 SYR4
Bromoform
4.86 µg/L
No EPA limit set
Main supplier: BALDWIN CITY, CITY OF · 4,882 people · 2019
2/2 SYR4
Lead
4.75 µg/L 32%
of the EPA limit 15 µg/L
Main supplier: BALDWIN CITY, CITY OF · 4,882 people · 2017
2/2 SYR4
Monobromoacetic Acid
3.05 µg/L
No EPA limit set
Main supplier: BALDWIN CITY, CITY OF · 4,882 people · 2019
2/2 SYR4
Lead
0.0023 mg/L 15%
of the EPA limit 0.0150 mg/L
Main supplier: BALDWIN CITY, CITY OF · 4,882 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 Baldwin City

SupplierPopulation served
BALDWIN CITY, CITY OF 4,882
DOUGLAS CO RWD 4 3,000

Frequently asked questions about Baldwin City tap water

Is Baldwin City tap water safe to drink?

EPA testing detected 15 contaminants in the water serving Baldwin City. 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 Baldwin City?

2 public water suppliers report drinking-water monitoring for Baldwin City, Kansas to the EPA. Each is listed above with its population served.

What contaminants are in Baldwin City's water?

The contaminants EPA monitoring detected in Baldwin City include Copper, TTHM, Total Haloacetic Acids (HAA5), Chloroform, Lithium. 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.