Iowa tap water quality
PFAS results for 152 Iowa water systems from EPA's latest nationwide testing. Enter your address for your own utility's record and a filter recommendation.
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152systems tested
21%had PFAS detected
7over EPA's 4 ppt limit
Highest PFAS levels in Iowa
| Water system | Max PFOA (ppt) | Max PFOS (ppt) |
|---|---|---|
| Muscatine Power & Water | 7.2 | 4.5 |
| Waverly Water Department | 7.2 | — |
| Sioux City Water Supply | 6 | 4.3 |
| West Burlington Muni. Water Supply | 5.3 | — |
| Dubuque Water Works | 5.1 | — |
| Osage Municipal Water Supply | — | 4.2 |
| Iowa-American Wtr Co-Davenport | 4.1 | — |
All Iowa water systems
- Altoona Water Supply
- Ames Water Treatment Plant
- Boone Water Works
- Burlington Municipal Waterworks
- Carroll Municipal Water Supply
- Cedar Falls Municipal Water Utilities
- Cedar Rapids Water Department
- City of Ankeny
- Clive Water Department
- Coralville Muni Water System
- Council Bluffs Water Works
- Des Moines Water Works
- Dubuque Water Works ⚠
- Fort Dodge Water Supply
- Ft Madison Muni Water Works
- Grimes Water Supply
- Ia Regional Utilities Assoc (Waverly)
- Indianola Water Supply
- Iowa City Water Department
- Iowa-American Wtr Co-Clinton District
- Iowa-American Wtr Co-Davenport ⚠
- Isu
- Johnston Municipal Water Supply
- Keokuk Municipal Water Works
- Marion Municipal Water Dept
- Marshalltown Water Works
- Mason City Water Department
- Mount Pleasant Municipal Utilities
- Muscatine Power & Water ⚠
- Newton Water Supply
- North Liberty Water Supply
- Oskaloosa Municipal Water Dept
- Ottumwa Water Works
- Pella Water Works Department
- Poweshiek Water Association
- Rathbun Reg Water Assn (Ft Madison)
- Rathbun Regional Water Assn (Rathbun)
- Sioux City Water Supply ⚠
- Sirwa #2 (Creston)
- Spencer Municipal Water Utility
- Storm Lake Water Treatment Plant
- University Water System
- Urbandale Water Utility
- Wapello Rural Water Assoc.
- Warren Water District
- Waterloo Water Works
- Waukee Water Supply
- West Des Moines Water Works
- Adel Municipal Water Works
- Albia Municipal Water Works
- Algona Municipal Utilities
- Anamosa Municipal Water Supply
- Anita Municipal Utilities
- Asbury Municipal Water System
- Atlantic Municipal Utilities
- Bancroft Water Supply
- Belle Plaine Water Dept
- Bondurant Muni Water Supply
- Camanche Water Supply
- Cambridge Water Supply
- Carlisle Water Supply
- Carter Lake Water District
- Centerville Municipal Waterworks
- Chariton Municipal Water Works
- Charles City Water Supply
- Cherokee Water Supply - Plant 1
- Clarinda Water Plant
- Clarksville Water Supply
- Clear Lake Water Department
- Clermont Water Supply
- Cresco Waterworks
- Creston Water Supply
- De Witt Water Supply
- Decorah Water Department
- Denison Water Supply
- Dyersville Municipal Water Co
- Eagle Grove Water Supply
- Eldridge Water Supply
- Emmetsburg Municipal Water Department
- Estherville Water Treatment Plant
- Evansdale Water Works
- Fairfield Water Supply
- Forest City Water Supply
- Garden Grove Water Supply
- Glenwood Municipal Utilities
- Grinnell Water Department
- Hampton Muni Water Works
- Harlan Municipal Utilities
- Hiawatha Water Dept
- Humboldt Municipal Water Dept
- Huxley Waterworks Dept
- Independence Water Dept
- Iowa City Mhp LLC
- Iowa Falls Water Department
- Iowa Lakes Regional Water
- Iowa Lakes Regional Water - Lakes Area
- Iowa Premium LLC
- Jefferson Water Department
- Knoxville Water Works
- Lemars Water Department
- Lyon-Sioux Rws-Big Sioux
- Mahaska Rural Water System INC.
- Manchester Water Supply
- Maquoketa Municipal Water
- Marion Co. Rural Water District
- Melcher-Dallas Water Supply
- Monticello Water Supply
- Mount Vernon Water Supply
- Nevada Water Supply
- New Hampton Water Supply
- Norwalk Water Supply
- Oelwein Municipal Water Works
- Okoboji Water Supply
- Onawa Municipal Water Plant
- Orange City Municipal Water Department
- Osage Municipal Water Supply ⚠
- Osceola Rural Water System-North
- Osceola Water Works
- Perry Municipal Water Works
- Polk City Water Supply
- Portsmouth Water Supply
- Rathbun Reg Wtr Assn (Burlington)
- Red Oak Water Supply
- Regional Water
- Riverview Subdivision
- Rock Valley Water Supply
- Rural Water System #1
- Sergeant Bluff Water Supply
- Sheldon Water Department
- Shenandoah Water Dept
- Sioux Center Municipal Water Department
- Sirwa #3 (Osceola)
- Southeast Polk Rwd
- Southern Sioux County Rural Water
- Spirit Lake Waterworks
- Story City Water Dept
- Urban Bluffs - North
- Vinton Municipal Water Dept
- Washington Water Department
- Waukon Water Department
- Waverly Water Department ⚠
- Webster City Water Supply
- West Burlington Muni. Water Supply ⚠
- West Central Rwa - Nish System
- West Central Rwa-Boyer System
- West Liberty Water Utility
- Winterset Municipal Waterworks
- Worth Co Interchange 214 Water Supply
- Xenia Rwd (Boone)
- Xenia Rwd (Des Moines)
- Xenia Rwd (North)
- Xenia Rwd (Woodward)
Questions
Does Iowa tap water have PFAS?
In EPA's UCMR 5 testing, 32 of 152 Iowa water systems (21%) had at least one PFAS compound detected, and 7 had PFOA or PFOS above EPA's 4 ppt limit.
What is the best water filter in Iowa?
It depends on your utility. Where PFAS is above EPA's limit, reverse osmosis is the most effective option. Where the main concern is lead from home plumbing or chlorine taste, a certified carbon filter is enough. Enter your address to get a match.