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Tap water quality report

Montpelier, IA

EPA monitoring detected 8 contaminants across the 2 water suppliers serving Montpelier. 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
134
people served
8
contaminants found
Iowa rankings Lead in Iowa PFAS in Iowa

What was found in Montpelier'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
Nitrate
280 µg/L 2.8%
of the EPA limit 10000 µg/L
Main supplier: RANCHO VALLEY HOMEOWNERS ASSOC · 97 people · 2019
Highest in the city: 1300 µg/L — RIVERVIEW SUBDIVISION · 37 people · 2019
2/2 SYR4
Fluoride
400 µg/L 10%
of the EPA limit 4000 µg/L
Main supplier: RANCHO VALLEY HOMEOWNERS ASSOC · 97 people · 2013
Highest in the city: 430 µg/L — RIVERVIEW SUBDIVISION · 37 people · 2012
2/2 SYR4
Copper
234 µg/L 18%
of the EPA limit 1300 µg/L
Main supplier: RANCHO VALLEY HOMEOWNERS ASSOC · 97 people · 2018
Highest in the city: 269.9999999999998 µg/L — RIVERVIEW SUBDIVISION · 37 people · 2019
2/2 SYR4
Barium
150 µg/L 7.5%
of the EPA limit 2000 µg/L
Main supplier: RANCHO VALLEY HOMEOWNERS ASSOC · 97 people · 2013
1/2 SYR4
Lithium
22 µg/L
No EPA limit set
Highest in the city: RIVERVIEW SUBDIVISION · 37 people · 2023
1/2 UCMR-5
Lead
3.75 µg/L 25%
of the EPA limit 15 µg/L
Main supplier: RANCHO VALLEY HOMEOWNERS ASSOC · 97 people · 2018
Highest in the city: 8 µg/L — RIVERVIEW SUBDIVISION · 37 people · 2019
2/2 SYR4
Combined Radium (-226 And -228)
2.235 pCi/L 45%
of the EPA limit 5 pCi/L
Main supplier: RANCHO VALLEY HOMEOWNERS ASSOC · 97 people · 2015
Highest in the city: 3 pCi/L — RIVERVIEW SUBDIVISION · 37 people · 2019
2/2 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: RANCHO VALLEY HOMEOWNERS ASSOC · 97 people · 2024
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 Montpelier

SupplierPopulation served
RANCHO VALLEY HOMEOWNERS ASSOC 97
RIVERVIEW SUBDIVISION 37

Frequently asked questions about Montpelier tap water

Is Montpelier tap water safe to drink?

EPA testing detected 8 contaminants in the water serving Montpelier. 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 Montpelier?

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

What contaminants are in Montpelier's water?

The contaminants EPA monitoring detected in Montpelier include Nitrate, Fluoride, Copper, Barium, 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.