EWG's Tap Water Database — 2021 UPDATE


Methyl ethyl ketone

Status: No national drinking water standard exists


Methyl ethyl ketone is a volatile solvent used in paints, adhesives, and other industrial and consumer goods.




states detected


utilities detected

4.9 million

people served

Health concerns for methyl ethyl ketone

Eye and lung irritation

States reporting methyl ethyl ketone in drinking water

State UtilitiesPeople Served
New Jersey648,832
New York143

Filtering technologies that reduce methyl ethyl ketone

carbon filter icon

Activated Carbon

reverse osmosis icon

Reverse Osmosis

Utilities with the highest amounts of methyl ethyl ketone, 2017-2019

UtilityLocationTestsAverage levelPeople served
Lake Livingston Eagles Nest WaterLivingston, TX1 of 1742.0 ppb65
Marchi Central FarmPescadero, CA1 of 1450.0 ppb50
Ladd Hill Mobile Home ParkFranklin, NH1 of 7315.7 ppb68
City of RenoAzle, TX12 of 3598.9 ppb2,700
Water Association of North LakeAubrey, TX1 of 471.3 ppb29
Rocky Creek Subdivision Water SystemPflugerville, TX1 of 670.0 ppb117
Regency At Stow CondominiumsStow, MA1 of 160.4 ppb132
Beaumont PlaceCypress, TX1 of 859.4 ppb2,082
North Woods Nursing CenterBear Lake, MI2 of 445.3 ppb71
Benzonia Village ofRiverside, MI1 of 241.0 ppb491
Knolls Water Company Inc.West Nyack, NY1 of 122.0 ppb282
Rockhouse MountainConway, NH1 of 520.0 ppb412
Caspar South Service CompanySanta Rosa, CA2 of 219.3 ppb188
Mooreland Subdivision Water SystemCypress, TX2 of 818.5 ppb144
Mcfarland Village ApartmentsHouston, TX1 of 518.4 ppb120
City of Bridge CityBridge City, TX1 of 1214.9 ppb8,651
Johnson CreekDurham, NH1 of 214.5 ppb50
Camp Stanley Storage ActivityBoerne, TX2 of 2014.1 ppb130
Vista Verde Water SystemsKirbyville, TX1 of 613.7 ppb111
Fort Bend County Municipal Utility District 35Houston, TX1 of 513.6 ppb6,609
Fort Bend County Municipal Utility District 34*Houston, TX1 of 513.6 ppb3,756
Brookwoods Mobile ManorBoiceville, NY1 of 113.0 ppb50
Elliott ApartmentsOwls Head, ME1 of 213.0 ppb55
Smetana ForestHouston, TX1 of 511.6 ppb150
Enchanted ForestVidor, TX1 of 1210.6 ppb339
Delsea Woods Community LLCGreen Creek, NJ1 of 110.5 ppb95
Cottages At WindchimesConcord, NH1 of 310.3 ppb75
Hills & DalesPflugerville, TX1 of 109.70 ppb222
City of AndrewsAndrews, TX2 of 59.33 ppb11,088
Cottonwood Mobile Home ParkCarson City, NV3 of 39.23 ppb250
Browns Mobile Home ParkRichmond, TX1 of 59.00 ppb57
Lake South Water Supply CorporationConroe, TX1 of 68.50 ppb795
Verdi Meadows Utility Company Inc.Reno, NV2 of 28.45 ppb510
Crystal TpVerdi, NV1 of 18.20 ppb80
Monroe Water DepartmentWoodsville, NH1 of 68.17 ppb300
Crazy Horse Ranch WaterCollinsville, TX2 of 108.01 ppb177
City of LyfordLyford, TX1 of 68.00 ppb2,611
Collins Water SystemCollins, GA2 of 28.00 ppb780
Mount Rose Bowl Property Owners Water Co.Reno, NV1 of 17.90 ppb40
Canyon Lake Mobile Home EstatesAustin, TX1 of 97.78 ppb2,073
Kingston Town Water UtilitiesAustin, NV1 of 27.50 ppb350
Lake Pointe CondominiumsSouth Haven, MI1 of 27.00 ppb74
Little Johns Trailer ParkN. Norwich, NY1 of 27.00 ppb43
Imlay Water SystemLovelock, NV1 of 16.60 ppb200
Swartz Creek MeadowsDrummond Island, MI1 of 126.42 ppb400
Kansas City Board of Public Utilities*Kansas City, KS1 of 36.33 ppb152,958
Suburban Water Company*Basehor, KS1 of 36.33 ppb4,700
Oakdale Manor Water AssociationSouthbury, CT1 of 16.18 ppb40
Cws-onyx Water SystemSan Jose, CA1 of 16.13 ppb776
River Bend Mobile Home ParkReno, NV1 of 26.00 ppb45

* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report Methyl ethyl ketone, but it likely has the contaminant in its water supply.

UtilityLocationTestsAverage levelPeople served
City of AndrewsAndrews, TX2 of 59.33 ppb11,088
Kansas City Board of Public Utilities*Kansas City, KS1 of 36.33 ppb152,958
Atlantic City Municipal Utilities AuthorityAtlantic City, NJ2 of 85.90 ppb152,415
City of Deer ParkDeer Park, TX1 of 104.70 ppb32,964
Sharyland Water Supply CorporationMission, TX1 of 193.58 ppb57,045
Carson City Public Works*Carson City, NV5 of 571.74 ppb56,000
Harris County MUD 168Sugar Land, TX1 of 111.73 ppb13,029
Hudson Water Supply CorporationLufkin, TX3 of 71.28 ppb10,211
West Cedar Creek MUDTool, TX6 of 121.21 ppb19,185
City of MarshallMarshall, TX3 of 61.20 ppb23,091
Ventnor City Water & Sewer UtilityVentor City, NJ8 of 271.16 ppb22,150
City of Sulphur Springs*Sulphur Springs, TX2 of 61.07 ppb15,449
Lamar County Water Supply District*Paris, TX3 of 61.02 ppb22,269
City of Paris*Paris, TX3 of 61.02 ppb25,498
City of BonhamBonham, TX2 of 61.01 ppb10,123
City of Mineral Wells*Mineral Wells, TX3 of 60.830 ppb14,826
City of Midlothian*Midlothian, TX4 of 130.773 ppb16,728
Suburban Water Systems - La MiradaCovina, CA1 of 100.740 ppb56,953
El Monte Water DepartmentEl Monte, CA1 of 140.714 ppb22,968
East Cedar Creek FWSD BrookshireMabank, TX3 of 60.682 ppb13,254
City of JasperJasper, TX1 of 210.667 ppb11,825
Cypress Springs SUD N Plant 1 and NE PlantMount Vernon, TX4 of 120.639 ppb11,232
City of RialtoRialto, CA1 of 160.625 ppb48,623
City of Corsicana*Corsicana, TX4 of 120.618 ppb23,770
City of Ennis*Ennis, TX2 of 60.543 ppb18,660
City of Sweetwater*Sweetwater, TX1 of 60.517 ppb11,760
Texarkana Water Utilities*Texarkana, TX5 of 120.501 ppb38,418
City of Santa Barbara Water Department*Santa Barbara, CA1 of 200.500 ppb92,371
City of GrapevineGrapevine, TX1 of 60.500 ppb47,851
City of Azle*Azle, TX1 of 60.483 ppb11,800
City of CelinaCelina, TX1 of 50.476 ppb18,860
City of Red OakRed Oak, TX2 of 50.462 ppb10,934
City of Grand PrairieGrand Prairie, TX2 of 250.461 ppb187,050
Walnut Creek SUD*Springtown, TX2 of 60.452 ppb23,118
City of Mabank*Mabank, TX2 of 60.447 ppb11,349
City of Granbury*Granbury, TX25 of 720.428 ppb11,300
City of Nacogdoches*Nacogdoches, TX3 of 110.387 ppb48,303
University ParkDallas, TX3 of 60.381 ppb23,040
City of ColleyvilleColleyville, TX2 of 60.347 ppb25,010
City of Palestine*Palestine, TX1 of 60.345 ppb27,477
City of PleasantonPleasanton, TX1 of 350.343 ppb13,776
City of Jacksonville*Jacksonville, TX12 of 340.336 ppb14,544
City of Cedar HillCedar Hill, TX2 of 50.321 ppb48,710
City of Waxahachie*Waxahachie, TX3 of 130.316 ppb36,422
City of CleburneCleburne, TX9 of 370.315 ppb30,573
Mountain Peak SUD*Midlothian, TX7 of 280.309 ppb16,008
City of StephenvilleStephenville, TX8 of 220.282 ppb21,640
Elk Grove Water ServiceElk Grove, CA1 of 210.257 ppb40,461
City of Kilgore*Kilgore, TX3 of 150.242 ppb14,948
City of Fairfield*Fairfield, CA1 of 460.239 ppb100,147

* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report Methyl ethyl ketone, but it likely has the contaminant in its water supply.