Contaminated Sites

The Environmental Epidemiology Program works at the request of concerned individuals and organizations to assess and prevent human exposure to contamination. To learn more: Click on a map maker for more information about a site. Search for a site or investigation in the table below.

Document types

  • EI: Exposure Investigation
  • HC: Health Consultation
  • LCH: Letter of Health Consult
  • PHA: Public Health Assessment
  • SR: Statistical Review
  • TA: Technical Assist

NPL: National Priorities List (aka Superfund) status

  • Y: Site is on the NPL
  • P: Site has been proposed for the NPL
  • D: Site was on the NPL, but has been deleted
  • N: Site is not on the NPL

Site or IssueTypeYearContaminants of ConcernSource of ContaminationNPLCountyLink
Moab Uranium Tailings Site Cancer Incidence StudySR2018UraniumPast uranium ore processingNGrandLink
Monticello Mill: Seep 6LHC2016UraniumPast uranium and vanadium ore processingYSan JuanLink
ATK PromontoryPHA2015Arsenic; PerchloratesTesting of solid-fuel rocket motorsNBox ElderLink
Gold King Mine ReleaseHCs2015Aluminum; Arsenic; Barium; Iron; Lead; Manganese; Vanadium; Other heavy metalsRelease of contaminated water from an abandoned mineNSan JuanLink
Red Butte Creek Oil Spill Cancer Incidence StudySR2015Crude oil; Polycyclic aromatic hydrocarbons (PAHs); Volatile organic compounds (VOCs)2010 crude oil spill into Red Butte CreekNSalt LakeLink
Stericycle Incinerator: Dioxins and Heavy Metals in SoilEI / HC2015Arsenic; Barium; Cadmium; Chromium; Dioxins; Lead; Mercury; Selenium; SilverMedical waste incinerationNDavisLink
Stericycle Incinerator: Follow-up Report for the Soil and Air Exposure AssessmentsHC2015Arsenic; Cadmium; Chromium; Carbon monoxide; Dioxins; Hydrogen chloride gas; Lead; Mercury; Nitrogen oxides; Particulate matter; Sulfur dioxideMedical waste incinerationNDavisLink
TriCounty Adverse Birth Outcomes Statistical ReviewSR2015VariousIndustrial and mining activitiesNUintah, Duchesne, & DaggettLink
Monticello Mill and Vicinity PropertiesPHA2014Arsenic; Manganese; Molybdenum; Radon; Selenium; Uranium; VanadiumPast uranium and vanadium ore processingYSan JuanLink
Stericycle Incinerator: Modelled Air ExposuresLHC2014Cadmium; Carbon monoxide; Dioxins; Hydrogen chloride gas; Mercury; Nitrogen oxides; Particulate matter; Sulfur dioxideMedical waste incinerationNDavisLink
Traverse MountainHC2014ThalliumNaturally occurring thallium in groundwaterNUtahLink
ATK Promontory: Cancer IncidenceSR2013Arsenic; PerchloratesTesting of solid-fuel rocket motorsNBox ElderLink
Stericycle Incinerator: Dioxin ReleaseTA2013DioxinsMedical waste incinerationNDavisLink
Monticello Mill: Cancer IncidenceSR2012Arsenic; Radium; Radon; UraniumPast uranium and vanadium ore processingYSan JuanLink
Manning Canyon/FairfieldPHA2011Arsenic; Lead; Mercury; ThalliumPast ore processing activitiesNUtahLink
Red Butte Creek Oil SpillPHA2011Crude oil; Volatile organic compounds (VOCs)2010 crude oil spill into Red Butte CreekNSalt LakeLink
Red Butte Creek Oil SpillHC2011Polycyclic aromatic hydrocarbons (PAHs)2010 crude oil spill into Red Butte CreekNSalt LakeLink
Five Points PCE PlumeHC2008Perchloroethylene (PCE)Past dry cleaning and industrial activitiesYDavisLink
Bountiful/Wood's Cross PCE PlumePHA2007Perchloroethylene (PCE); Trichloroethylene (TCE); Volatile organic compounds (VOCs)Past commercial and industrial activitiesYDavisLink
Monticello Mill: Cancer IncidenceSR2007Arsenic; Radium; Radon; UraniumPast uranium and vanadium ore processingYSan JuanLink
Monticello Mill: Cancer IncidenceSR2006Arsenic; Radium; Radon; UraniumPast uranium and vanadium ore processingYSan JuanLink
Davenport and Flagstaff SmeltersPHA2005Arsenic; LeadPast ore smeltingYSalt LakeLink
Eureka MillsPHA2005Antimony; Arsenic; Cadmium; Iron; Lead; Manganese; Mercury; Thallium; Vanadium; ZincPast ore mining and processingYJuabLink
Inorganic Arsenic in Fish from the North Fork of the American Fork Canyon (2004)HC2004ArsenicIndustrial and mining activitiesNUtahLink
Hill Air Force BasePHA2003Volatile organic compounds (VOCs)On-base industrial processesYDavis; WeberLink
Intermountain Waste Oil RefineryPHA2003Volatile organic compounds (VOCs)Past waste oil handling, refining, and blendingYDavisLink
Tooele Army Depot (North Area)PHA2003Trichloroethylene (TCE)Ammunition storage and equipment repairYTooeleLink
International Smelting and RefiningPHA2001Arsenic; Cadmium; LeadPast ore mining, processing, and smeltingDTooeleLink
Jacobs SmelterPHA1999Arsenic; LeadPast ore processing and smeltingYTooeleLink
Monticello Mill Tailings and Monticello Radioactively Contaminated PropertiesPHA1997Arsenic; Beryllium; Chromium; Lead; Molybdenum; Nickel; Nitrate; Radium; Radon; Selenium; Thallium; Uranium; VanadiumPast uranium and vanadium ore processingYSan JuanLink
Murray SmelterPHA1997Arsenic; LeadPast ore processing and smeltingPSalt LakeLink
Kennecott (North Zone)PHA1996Arsenic; Lead; SeleniumOre processing and smeltingPSalt LakeLink
Kennecott (South Zone)PHA1996Arsenic; Lead; SulfatesOre mining and processingPSalt LakeLink
Midvale SlagHC1993Arsenic; Cadmium; LeadOre processing and smeltingYSalt LakeLink
Petrochem/EKOTEKPHA1993Arsenic; Barium; Cadmium; Organic Compounds; PCBs; PesticidesHazardous waste handling and disposalDSalt LakeLink
Ogden Defense DepotPHA1992Arsenic; Barium; Cadmium; Lead; Mercury; Pesticides; Volatile organic compounds (VOCs); ZincHazardous waste handling and disposalYWeberLink
Richardson Flat TailingsHC1990Arsenic; Cadmium; Copper; Lead; Mercury; Selenium; ZincPast ore processingPSummitLink
Portland Cement CompanyPHA1989Arsenic; Cadmium; Chromium; LeadPast cement kiln dust generationYSalt LakeLink
Sharon SteelPHA1986Arsenic; LeadPast ore processing and smeltingDSalt LakeLink
Possible Phenol Exposure in a ChildTA2018Phenol-NAllLink
Sous vide Cooking with Plastic BagsTA2018Chemicals associated with plastics (BPA, phthalates, etc)Plastic bagsNAllLink
Health Concerns Regarding Burning GilsoniteTA2017Carbon monoxide; Gilsonite; Nitrogen oxides; Polycyclic aromatic hydrocarbons (PAHs); Particulate matterGilsonite burning due to a wildfireNUintahLink
Methamphetamine Contamination of a Stolen Recreational VehicleTA2017Methamphetamine; Toxic/corrosive/flammable methamphetamine ingredientsPossible methamphetamine productionNWeberLink
Ashley Valley Oil Well Produced Water DischargeLHC2016Benzene; Heavy metals; Volatile organic compounds (VOCs)Produced water discharge from an oil wellNUintahLink
Use of Methyl Ethyl Ketone Peroxide in an Assisted Living FacilityTA2016Methyl ethyl ketone peroxideNon-industrial plastic/fiberglass repairNUtahLink
700 S 1600 E PCE PlumeTA2014Perchloroethylene (PCE)Past dry cleaning activitiesYSalt LakeLink
Radio Frequency Radiation in Alpine, UTTA2014Electromagnetic radiationRF radiation from mobile telephone base stationsNUtahLink
Cloud seeding with silver iodideTA2013SilverCloud seeding with silver iodideNAllLink
Drilling Site Sulfur SmellTA2013Hydrogen sulfide; Sulfur dioxidePetroleum drillingNAllLink
Mosquito Abatement PesticidesTA2013PesticidesPesticide applicationNAllLink
Willard Bay Diesel SpillTA2013Diesel fuel; HydrocarbonsDiesel fuel pipeline leakNBox ElderLink
Benzene in HomesTA2012BenzeneVariousNCacheLink
Epoxy, Grout, and Adhesive ChemicalsTA2012VariousOccupational exposuresNAllLink
Kennecott Retaining Pond Berm DustTA2012Arsenic; Chromium; Lead; Dust suppressant chemicalsMine tailings evaporation pondsNSalt LakeLink
Cocaine Residue in HomesTA2011CocainePast indoor useNSalt LakeLink
Dinotefuran Pesticides in Liberty ParkTA2011PesticidesPesticide applicationNSalt LakeLink
Firefighting FoamTA2011Fire suppressant chemicals"Foam Days" in Lehi, UTNUtahLink
Hookah Tobacco SmokeTA2011Tobacco smokeHookahsNAllLink
Naphthalene Blocks in RestroomsTA2011NaphthaleneStorage of naphthalene blocksNAllLink
Arsenic in Millard County Drinking WaterHC2009ArsenicNaturally occurring arsenic in groundwaterNMillardLink
Indoor Air Quality in LaytonHC20091,2-dichloroethaneIndustrial processes at Hill Air Force BaseNDavisLink
EMF Proximity to SchoolsHC2008Electromagnetic radiationEMF from mobile phone base stationsNSalt LakeLink
Air Quality and Noise during Indoor Motorsports EventsTA2018Carbon monoxide; Nitrogen oxides; NoiseMotor vehicle exhaustNAllLink
Layton Cancer IncidenceSR2007DioxinsMunicipal waste incinerationNDavisLink
Vermiculite Intermountain/Intermountain Products, Inc.HC2007AsbestosVermiculite ore processingNSalt LakeLink
Bauer Dump & Tailings; Blackhawk Resin Co.PHA2006Arsenic; LeadPast manufacturing and ore smeltingNTooeleLink
Brigham City Sand and Gravel PitsHC2006Coarse particulate matter (PM10); Total suspended particulatesSand, gravel, and asphalt operationsNBox ElderLink
Cottonwood Heights Cancer IncidenceSR2006Asphalt production byproducts; dustAsphalt production and gravel pitsNSalt LakeLink
Mercury in Fish, 1990 - 2005HC2006MercuryMercury in Fish, 1990 - 2005NAllLink
Tooele Railroad SpurHC2006Arsenic; Copper; Lead; ZincPast ore processing and smeltingNTooeleLink
Contaminants in Fish from Cutler ReservoirHC2005Dioxins; Mercury; PCBs; Pesticides; Semivolatile organic compounds (VOCs); Volatile organic compounds (VOCs)Industrial and agricultural activitiesNCacheLink
Contaminants in Fish from Gunlock ReservoirHC2005Dioxins; Mercury; PCBs; Pesticides; Semivolatile organic compounds (VOCs); Volatile organic compounds (VOCs)Industrial and agricultural activitiesNWashingtonLink
Contaminants in Fish from Strawberry ReservoirHC2005Dioxins; Mercury; PCBs; Pesticides; Semivolatile organic compounds (VOCs); Volatile organic compounds (VOCs)Industrial and agricultural activitiesNWasatchLink
Contaminants in Fish from Utah LakeHC2005Dioxins; Mercury; PCBs; Pesticides; Semivolatile organic compounds (VOCs); Volatile organic compounds (VOCs)Industrial and agricultural activitiesNUtahLink
Contaminants in Fish from Yuba LakeHC2005Dioxins; Mercury; PCBs; Pesticides; Semivolatile organic compounds (VOCs); Volatile organic compounds (VOCs)Industrial and agricultural activitiesNJuab; San PeteLink
Valley AsphaltHC2005Polycyclic aromatic hydrocarbons (PAHs); Coarse particulate matter (PM10); Volatile organic compounds (VOCs)Past asphalt productionNUtahLink
Bountiful/Wood's Cross PCE Plume: Cancer IncidenceSR2004Perchloroethylene (PCE); Trichloroethylene (TCE); Volatile organic compounds (VOCs)Past commercial and industrial activitiesYDavisLink
Contaminants in Fish from Silver CreekHC2004Arsenic; LeadPast ore mining and processingNSummitLink
Inorganic Arsenic in Fish from the North Fork of the American Fork Canyon (2003)HC2003ArsenicIndustrial and mining activitiesNUtahLink
U.S. MagnesiumHC1997Chlorine gas; Hydrogen chloride gasMagnesium smelting and refiningYTooeleLink
Rose Park Sludge Pit (Update)HC1993Acidic Sludges; Polycyclic aromatic hydrocarbons (PAHs); Sulfur dioxidePast petroleum refinery waste disposalDSalt LakeLink
Utah Power & Light/American Barrel Co.PHA1990Cyanide; Lead; Pesticides; Polycyclic aromatic hydrocarbons (PAHs); Volatile organic compounds (VOCs)Past storage of contaminated barrelsYSalt LakeLink
Rose Park Sludge PitPHA1989Acidic Sludges; Polycyclic aromatic hydrocarbons (PAHs); Sulfur dioxidePast petroleum refinery waste disposalDSalt LakeLink
Wasatch Chemical Co. (Lot 6)PHA1988Dioxins; Herbicides; Pesticides; Volatile organic compounds (VOCs)Past chemical production, storage, and packagingYSalt LakeLink
Tibble Fork ReservoirHC2023Arsenic; heavy metalsHistoric mining operations; sediment releaseNUtahLink