D&D Decontamination and decommissioning
DAC Disaster application center
DAE Disaster assistance employee
DAF Dissolved air floatation
DC Direct current
DCI Data call-in
DCO Delayed compliance order; document control officer; defense coordinating officer
D/DBP Disfectant/disinfectant byproducts
DE Diatomaceous earth
DEC Department of Environmental Conservation
DEP Deparment of Environmental Protection
DEQ Department of Environmental Quality
DFO Disaster field office
DFS Daily flow system
DIC Dissolved inorganic carbon
DLG-E Digital line graph - enhanced
DN Diameter, nominal
DNR Department of Natural Resources
DNRC Department of Natural Resources and Conservation
DO Dissolved Oxygen
DOC Department of Conservation; Department of Commerce
DOD Department of Defense
DOE Department of Energy; Department of the Environment
DOEM Designated officials for environmental matters
DOI Department of the Interior
DOJ Department of Justice
DOT Department of Transportation
DOW Defenders of Wildlife
DPA Deepwater Ports Act
DPD N,N-diethyl-p-phenylene-diamine; DPD method of measuring chlorine residual in water
DSCF Dry standard cubic feet
DSCM Dry standard cubic meter
DSS Domestic sewage study; decision support system; dissolved suspended solids
DT Detention time
DT&E Demonstration, testing and evaluation
DU Decision unit; Ducks Unlimited
DWEL Drinking water equivalent level
DWRD Drinking Water Research Division, USEPA
DWS Drinking water standard
DWSE Division of Water Supply Engineering
DWT Dead weight tonnage
EA Environmental action; enforcement agreement; endangerment assessment; environmental audit; environmental assessment
EAG Exposure assessment group
EAP Environmental action plan
EAS Emergency alert system
EBS Emergency Broadcast System
EC Effective concentration
ECAO Environmental Criteria and Assessment Office
E-CATS Electronic Catalog System
ECD Electron capture detector
ECL Environmental chemical laboratory
ECOMAP The National Hierarchical Framework of Ecological Units mapping project of the
USDA Forest Service
ECR Enforcement case review
ED Effective dose; environmental damage
EDC EROS Data Center
EDD Enforcement decision document
EDF Environment Defense Fund
EDRS Enforcement Document Retrieval System
EDX Electronic data exchange
EDXA Energy-dispersive, X-ray elemental analysis
EEA Energy and environmental analysis
EECs Estimated environmental concentrations
EEIC Environmental Education and Information Committee
EEO Equal Employment Opportunity
EERU Environmental emergency response unit
EGE Enhanced greenhouse effect
EHC Environmental health committee
EHS Environmental health standards
EIA Environmental impact assessment; economic impact assessment
EICC Emergency Information and Coordination Center, FEMA
EIR Environmental impact report
EIS Environmental impact statement; environmental inventory system; electrochemical impedance spectroscopy
EL Exposure level
ELI Environmental Law Institute
ELR Environmental Law Reporter
EM Electromagnetic conductivity
EMAP Environmental Monitoring and Assessment Program
EMAP-LC EMAP-Landscape Characterization (USEPA)
EMAS Enforcement Management and Accountability System
emf Effective electromotive force
EMP Environmental management plan
EMR Environmental management report
EMS Enforcement management system; emergency medical services
EMSL Environmental monitoring support laboratory; Environmental Monitoring Systems Laboratory (EPA)
EMTC Environmental Management Technical Center (NBS)
EMTS Environmental monitoring testing site
EMWIN Emergency Manager's Weather Information Center
EOC Emergency operation center
EOD Engineering operations division; explosives ordnance detachment
EOF Emergency operations facility
EQO Environmental quality objective
EOP End of pipe; emergency operations plan
EOS Earth Observing System
EOSAT Earth Observation Satellite Company (the commercial operator of the Landsat satellite system)
EOSDIS EOS Data & Information System
EOT Emergency operations team
EP Environmental profile; end-use product; experimental product; extraction procedure
EPA United States Environmental Protection Agency
EPAAR EPA Acquisition Regulation Manual
EPACML EPA Composite Model for Landfills
EPCRA Emergency Planning and Community Right-to-Know Act
EPI Environmental Policy Institute
ERC Environmental Research Center
ERCG Emergency response coordination group
ERD Emergency Response Division
ERDA Energy Research & Development Administration
ERL Environmental Research Laboratory, Corvallis (USEPA)
ERNS Emergency Response Notification System
EROS Earth Resources Observation System (USGS)
ERT Emergency response team
ERTA Advance element of the emergency response team
ES&H Environment, safety and health
ESA Endangered Species Act; environmentally sensitive area
ESCA electron spectroscopy for chemical analysis
ESD Emission Standards Division
ESDB Endangered Species Database/ReachScanlink
ESF Emergency support function
ESRI Environmental Systems Research Institute
EST Eastern Standard Time; emergency support team
ETM+ Enhanced Thematic Mapper plus