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Tap water quality report

Ellisville, MO

EPA monitoring detected 7 contaminants across the 1 water supplier serving Ellisville. 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.

1
water supplier
300
people served
7
contaminants found
Missouri rankings Lead in Missouri PFAS in Missouri

What was found in Ellisville'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
Fluoride
339 µg/L 8.5%
of the EPA limit 4000 µg/L
Main supplier: SEVEN SPRING SEWER & WATER LLC · 300 people · 2017
1/1 SYR4
Barium
135.2 µg/L 6.8%
of the EPA limit 2000 µg/L
Main supplier: SEVEN SPRING SEWER & WATER LLC · 300 people · 2017
1/1 SYR4
Copper
49.355 µg/L 3.8%
of the EPA limit 1300 µg/L
Main supplier: SEVEN SPRING SEWER & WATER LLC · 300 people · 2019
1/1 SYR4
Nitrate-Nitrite
36 µg/L 0.4%
of the EPA limit 10000 µg/L
Main supplier: SEVEN SPRING SEWER & WATER LLC · 300 people · 2019
1/1 SYR4
Chromium
6.8985 µg/L 6.9%
of the EPA limit 100 µg/L
Main supplier: SEVEN SPRING SEWER & WATER LLC · 300 people · 2017
1/1 SYR4
Lead
1.7525 µg/L 12%
of the EPA limit 15 µg/L
Main supplier: SEVEN SPRING SEWER & WATER LLC · 300 people · 2019
1/1 SYR4
Lead
0.0077 mg/L 51%
of the EPA limit 0.0150 mg/L
Main supplier: SEVEN SPRING SEWER & WATER LLC · 300 people · 2025
1/1 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 Ellisville

SupplierPopulation served
SEVEN SPRING SEWER & WATER LLC 300

Frequently asked questions about Ellisville tap water

Is Ellisville tap water safe to drink?

EPA testing detected 7 contaminants in the water serving Ellisville. 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 Ellisville?

1 public water supplier report drinking-water monitoring for Ellisville, Missouri to the EPA. Each is listed above with its population served.

What contaminants are in Ellisville's water?

The contaminants EPA monitoring detected in Ellisville include Fluoride, Barium, Copper, Nitrate-Nitrite, Chromium. 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.