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Tap water quality report

Graettinger, IA

EPA monitoring detected 19 contaminants across the 2 water suppliers serving Graettinger. 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
9,918
people served
19
contaminants found
Iowa rankings Lead in Iowa PFAS in Iowa

What was found in Graettinger'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
5805 µg/L 58%
of the EPA limit 10000 µg/L
Highest in the city: GRAETTINGER MUNICIPAL WATER SUPPLY · 897 people · 2019
1/2 SYR4
Copper
570 µg/L 44%
of the EPA limit 1300 µg/L
Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2017
2/2 SYR4
Fluoride
259.5 µg/L 6.5%
of the EPA limit 4000 µg/L
Highest in the city: GRAETTINGER MUNICIPAL WATER SUPPLY · 897 people · 2016
1/2 SYR4
TTHM
86.95 µg/L 109%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2019
2/2 SYR4
Barium
70 µg/L 3.5%
of the EPA limit 2000 µg/L
Highest in the city: GRAETTINGER MUNICIPAL WATER SUPPLY · 897 people · 2016
1/2 SYR4
Chloroform
50.7 µg/L
No EPA limit set
Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
32.86 µg/L 55%
of the EPA limit 60 µg/L
Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2019
1/2 SYR4
Bromodichloromethane
19 µg/L
No EPA limit set
Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2019
2/2 SYR4
Lead
4 µg/L 27%
of the EPA limit 15 µg/L
Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2017
Highest in the city: 17.75 µg/L — GRAETTINGER MUNICIPAL WATER SUPPLY · 897 people · 2017
2/2 SYR4
Lithium
16 µg/L
No EPA limit set
Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2023
1/2 UCMR-5
Dichloroacetic Acid
13 µg/L
No EPA limit set
Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2019
2/2 SYR4
Trichloroacetic Acid
13 µg/L
No EPA limit set
Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2019
2/2 SYR4
Dibromochloromethane
9.491 µg/L
No EPA limit set
Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2019
2/2 SYR4
Monochloroacetic Acid
6.75 µg/L
No EPA limit set
Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2019
1/2 SYR4
Dibromoacetic Acid
3 µg/L
No EPA limit set
Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2019
2/2 SYR4
Bromoform
1.555 µg/L
No EPA limit set
Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2019
2/2 SYR4
Combined Radium (-226 And -228)
1.4 pCi/L 28%
of the EPA limit 5 pCi/L
Highest in the city: GRAETTINGER MUNICIPAL WATER SUPPLY · 897 people · 2017
1/2 SYR4
Pfba
0.0050 µg/L
No EPA limit set
Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2023
1/2 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2025
Highest in the city: 0.0010 mg/L — GRAETTINGER MUNICIPAL WATER SUPPLY · 897 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 Graettinger

SupplierPopulation served
IOWA LAKES REGIONAL WATER - OSGOOD 9,021
GRAETTINGER MUNICIPAL WATER SUPPLY 897

Frequently asked questions about Graettinger tap water

Is Graettinger tap water safe to drink?

EPA testing detected 19 contaminants in the water serving Graettinger. 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 Graettinger?

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

What contaminants are in Graettinger's water?

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