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Tap water quality report

Hayti, MO

EPA monitoring detected 18 contaminants across the 3 water suppliers serving Hayti. 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.

3
water suppliers
9,351
people served
18
contaminants found
Missouri rankings Lead in Missouri PFAS in Missouri

What was found in Hayti'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
193.85 µg/L 15%
of the EPA limit 1300 µg/L
Main supplier: PEMISCOT COUNTY CON PWSD 1 · 6,042 people · 2018
Highest in the city: 543.3 µg/L — HAYTI HEIGHTS PWS · 520 people · 2018
3/3 SYR4
Fluoride
251 µg/L 6.3%
of the EPA limit 4000 µg/L
Main supplier: PEMISCOT COUNTY CON PWSD 1 · 6,042 people · 2018
2/3 SYR4
Barium
88.605 µg/L 4.4%
of the EPA limit 2000 µg/L
Main supplier: PEMISCOT COUNTY CON PWSD 1 · 6,042 people · 2018
Highest in the city: 165.6 µg/L — HAYTI PWS · 2,789 people · 2018
2/3 SYR4
Nitrate-Nitrite
99.25 µg/L 1%
of the EPA limit 10000 µg/L
Main supplier: PEMISCOT COUNTY CON PWSD 1 · 6,042 people · 2019
1/3 SYR4
TTHM
34.81 µg/L 44%
of the EPA limit 80 µg/L
Main supplier: PEMISCOT COUNTY CON PWSD 1 · 6,042 people · 2019
Highest in the city: 49.18 µg/L — HAYTI HEIGHTS PWS · 520 people · 2018
3/3 SYR4
Lithium
35.5 µg/L
No EPA limit set
Main supplier: PEMISCOT COUNTY CON PWSD 1 · 6,042 people · 2025
1/3 UCMR-5
Chloroform
4.87 µg/L
No EPA limit set
Main supplier: PEMISCOT COUNTY CON PWSD 1 · 6,042 people · 2019
Highest in the city: 27.85 µg/L — HAYTI HEIGHTS PWS · 520 people · 2018
3/3 SYR4
Total Haloacetic Acids (HAA5)
18.43 µg/L 31%
of the EPA limit 60 µg/L
Highest in the city: HAYTI HEIGHTS PWS · 520 people · 2018
1/3 SYR4
Bromodichloromethane
4.72 µg/L
No EPA limit set
Main supplier: PEMISCOT COUNTY CON PWSD 1 · 6,042 people · 2019
Highest in the city: 13.646 µg/L — HAYTI HEIGHTS PWS · 520 people · 2018
3/3 SYR4
Lead
11.355 µg/L 76%
of the EPA limit 15 µg/L
Main supplier: PEMISCOT COUNTY CON PWSD 1 · 6,042 people · 2018
Highest in the city: 12.971 µg/L — HAYTI HEIGHTS PWS · 520 people · 2018
3/3 SYR4
Bromoform
10.54 µg/L
No EPA limit set
Main supplier: PEMISCOT COUNTY CON PWSD 1 · 6,042 people · 2019
2/3 SYR4
Monobromoacetic Acid
9.13 µg/L
No EPA limit set
Highest in the city: HAYTI HEIGHTS PWS · 520 people · 2018
1/3 SYR4
Dibromochloromethane
8.597 µg/L
No EPA limit set
Main supplier: PEMISCOT COUNTY CON PWSD 1 · 6,042 people · 2019
3/3 SYR4
Dichloroacetic Acid
3.3675 µg/L
No EPA limit set
Main supplier: PEMISCOT COUNTY CON PWSD 1 · 6,042 people · 2019
Highest in the city: 7.8115 µg/L — HAYTI HEIGHTS PWS · 520 people · 2018
3/3 SYR4
Trichloroacetic Acid
0.7600 µg/L
No EPA limit set
Main supplier: PEMISCOT COUNTY CON PWSD 1 · 6,042 people · 2019
Highest in the city: 5.128 µg/L — HAYTI HEIGHTS PWS · 520 people · 2018
2/3 SYR4
Dibromoacetic Acid
4.58 µg/L
No EPA limit set
Main supplier: PEMISCOT COUNTY CON PWSD 1 · 6,042 people · 2019
2/3 SYR4
Chromium
4.436 µg/L 4.4%
of the EPA limit 100 µg/L
Main supplier: PEMISCOT COUNTY CON PWSD 1 · 6,042 people · 2018
1/3 SYR4
Lead
0.0011 mg/L 7.2%
of the EPA limit 0.0150 mg/L
Main supplier: PEMISCOT COUNTY CON PWSD 1 · 6,042 people · 2024
Highest in the city: 0.0026 mg/L — HAYTI PWS · 2,789 people · 2025
3/3 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 Hayti

SupplierPopulation served
PEMISCOT COUNTY CON PWSD 1 6,042
HAYTI PWS 2,789
HAYTI HEIGHTS PWS 520

Frequently asked questions about Hayti tap water

Is Hayti tap water safe to drink?

EPA testing detected 18 contaminants in the water serving Hayti. 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 Hayti?

3 public water suppliers report drinking-water monitoring for Hayti, Missouri to the EPA. Each is listed above with its population served.

What contaminants are in Hayti's water?

The contaminants EPA monitoring detected in Hayti include Copper, Fluoride, Barium, Nitrate-Nitrite, TTHM. 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.