Maryland Chemical Incidents Map

Click a marker to see information on a recent chemical spill, explosion or other chemical incident in Maryland. Where available, media reports on incidents are linked. In all other records, "more info" links point to a searchable version of the Maryland data that also includes the opportunity to download the full national data set.


Searchable Maryland chemical incident data

Search the table below for Maryland incident information related to specific keywords. Full data and national analysis can be seen at (archived here for slow connections). Users can also download the data directly from Baltimore Sun mirrors.
LocationCityDate of IncidentNumber of DeathsNumber Evacuated/SIP
Mattawoman Wastewater Treatment Plant Mason Springs6/13/200101 - 100
JAG Industries Baltimore7/31/20010Unknown
Unknown Essex8/24/20010Unknown
Unknown Baltimore10/4/20010Unknown
U.S. ARMY RESEARCH CENTER LAB Adelphi10/16/20010Unknown
Brandon Shores Power Plant Pasadena11/19/20010Unknown
Allen FoodsHurlock6/19/20020101 - 500
Anne Arundel County public worksBaltimore7/16/20020Unknown
Garden State TanningWilliamsport10/21/20020Unknown
American Home MedicalCrofton11/18/20020Unknown
Clorox Co.Baltimore County2/5/20030Unknown
Baltimore Marine Industries Inc.Sparrow Point3/24/20030Unknown
Constellation NuclearCalvert Cliffs4/7/20030Unknown
Home Paramount Pesticide Co.Lewistown4/12/20030Unknown
FMC CorporationBaltimore4/30/20030Unknown
Similar KingsBaltimore County6/23/20030Unknown
MDL ManufacturingMechanicsville11/11/20031Unknown
McCormick's Spice CompanyCockeysville1/19/200401 - 100
Baltimore American Ice Co.Baltimore3/2/20040Unknown
Aberdeen Proving GroundAberdeen6/23/20040Unknown
Baltimore Gas and Electric Co.Baltimore8/23/20040Unknown
Cloverland Dairy Product CompanyBaltimore11/1/20040Unknown
WL Gore & AssociatesFair Hill3/28/20050101 - 500
Life-Like ProductsBaltimore4/12/20050Unknown
Royster-Clark CompanyWhiteford5/12/200501 - 100
Royster-Clark CompanyWhiteford5/12/200501 - 100
Cecil County LandfillCecil County6/22/20050Unknown
Hanover FoodsRidgely6/27/20050Unknown
Maryland Port AuthorityDundalk6/29/20050Unknown
Port of DundalkDundalk6/30/20050Unknown
Aberdeen Proving GroundBaltimore10/19/20050Unknown
Perdue Farms PlantSalisbury12/13/20050Unknown
Allen Family FoodsHurlock1/3/20060101 - 500
Owens CorningJessup1/30/20060Unknown
Exxon MobilBaltimore County2/16/20060Unknown
New Page Luke MillWesternport2/21/20060101 - 500
University of Maryland Biotechnology InstituteBaltimore4/3/20060Unknown
unknownChestertown5/16/20060101 - 500
Choice Restoration ServicesBaltimore5/18/20060Unknown
Delta ChemicalBaltimore5/24/20060Unknown
Harford County Wastewater Treatment PlantHarford County6/14/20060Unknown
UPM PharmacueticalsBaltimore9/8/20060Unknown
Edgewood Chemical Biological CenterHarford County9/20/20060Unknown
Dairy Maid DairyFrederick1/5/200701 - 100
Edy's Grande Ice-CreamLaurel2/27/20070101 - 500
Hagerstown Water, Sever and Electric FacilityHagerstown3/12/20070Unknown
City of Frederick Wastewater Treatment PlantFrederick3/15/200701 - 100
HP White LabsStreet5/11/20070Unknown
Dominion Cove PointCove Point6/8/20070Unknown
Maryland Cork Company, Inc.Elkton6/12/20070Unknown
St. Mary's SchoolAnnapolis9/13/20070Unknown
Teruma Vascular SystemsElkton10/23/20070Unknown
Dominos SugarBaltimore11/2/20070Unknown
Smith RecyclingCheverly12/4/20070Unknown
Pepsi-Cola Salisbury1/10/20080Unknown
Johns Hopkins University Baltimore2/19/20080Unknown
Johns Hopkins University Baltimore3/5/200801 - 100
Aberdeen Proving Ground Baltimore3/6/20080Unknown
Americal Ice Co. Baltimore3/6/20080Unknown
Cole Chemical Sparrows Point4/21/20080Unknown
Dairy Maid Dairy Inc. Frederick5/15/200801 - 100
Greenlight Biofuels Princess Anne5/18/20081Unknown
Frederick Surgical Center Fredrick6/12/200801 - 100
Frederick Surgical Center Frederick6/16/200801 - 100
CSX Drive Cumberland6/30/20080Unknown
Curtis Bay Baltimore7/8/20080Unknown
Concrete Protection and Restoration warehouse Baltimore7/11/20080Unknown
McCormick Spice Mill/McCormick & Company, Inc. Hunt Valley7/21/20080Unknown
Chalk Point Generating Plant Waldorf7/29/20080Unknown
Agricultural Research Center Beltsville8/26/200801 - 100
Al Pharma Salisbury9/24/20080Unknown
Severndale Water Treatment Plant Severna Park10/6/20080Unknown
Frederick Innovative Tech Center Frederick12/1/20080Unknown
Mac Machine CompanyWoodlawn1/5/20090Unknown
Shady Grove Transfer StationDerwood2/2/20090Unknown
Rust-Oleum PlantWilliamsport2/7/20090Unknown
Baltimore Dept of Public Works - Montebello PlantBaltimore2/22/20090Unknown
Johns Hopkins UniversityBaltimore2/26/20090Unknown
New Page CorporationLuke3/9/20090Unknown
Tobacco Techology Inc, Sykesville4/6/20090Unknown
Brandon Shores Power PlantPasadena6/17/20090Unknown
Calloway FarmMardela Springs6/24/20090Unknown
Md. WarehouseCapitol Heights9/10/20090Unknown
Penn Mar Shopping CenterForestville9/27/20090Unknown
Corkran Middle School - MDGlen Burnie9/30/20090101 - 500
Intercoastal Trading Inc.Cambridge9/30/200900
Rust-Oleum Corp.Williamsport4/28/20100Unknown
Allied Contractors IncBaltimore1/10/201100
Smithfield PackingLandover2/8/201101 - 100
Aberdeen Proving Ground LaboratoryAberdeen4/30/20111Unknown
Geomet Technologies - Gaithersburg, MDGaithersburg9/12/20110Unknown
Belvedere Tire - Baltimore, MDBaltimore9/26/201101 - 100
University of Maryland, Dept. of Chemistry & Biochemistry - College Park, MDCollege Park9/26/201101 - 100
New Page Corporation/ Luke Paper Co.- Luke, MDLuke11/16/20110101 - 500
Plymouth Tube Co. - Salisbury, MDSalisbury12/6/20110Unknown
Bates Middle SchoolAnnapolis1/2/20120101 - 500
Centerdel FarmKennedyville5/24/20123Unknown
Cullen FarmsCrisfield10/20/20120Unknown
Mr. TireBaltimore11/23/20120Unknown
Baltimore Sun app built by Sean Henderson and Patrick Maynard using DataTables and U.S. Chemical Safety Board data. Full data and national analysis can be seen at (archived here for slow connections). Users can also download the data directly from Baltimore Sun mirrors.