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There are 207 entries started with 'o'
O O3 OASOSDE
OBLIGATE AEROBES OBLIGATE ANAEROBES OBSERVATION WELL (Groundwater)
OBSIDIAN OCCLUSION OCD
OCEAN OCEAN BASIN OCEAN CURRENT
OCEAN DISPOSAL OCEAN DUMPING OCEAN DUMPING ACT (ODA)
OCEAN ENGINEERING OCEAN FLOOR OCEAN INCINERATION
OCEAN THERMAL ENERGY CONVERSION (OTEC) SYSTEM OCEANIC BASALT OCEANIC CLIMATE
OCEANIC CRUST OCEANOGRAPHY OCPSF
OCR OCTAHEDRON OCTANE NUMBER
OCTANE RATING ODA ODOR
ODOR CLASSIFICATION ODOR CONTROL ODOR STRENGTH
ODOR THRESHOLD ODP OECD
OEDOMETER OFDA OFF-GAS
OFFSET (Pollution) OFFSHORE OFFSHORE AREA
OFFSHORE BAR OFFSHORE CURRENTS OFFSHORE LAND
OFFSHORE STRUCTURE OFFSHORE TERRACE OFFSHORE WIND
OFF-SITE HAZARDOUS WASTE FACILITY OFR OGWDW
OHM (ohm) () (Unit) OHM'S LAW OIL CONTAMINATED SOILS
OIL FIELD OIL POLLUTION OIL POLLUTION ACT (OPA)
OIL POOL OIL SHALE OIL SKIMMER
OILS OILS AND GREASE OILY WATER
OLC OLEFIN OLEIC ACID
OLFACTOMETER OLIGOTROPH OLIGOTROPHIC LAKE
OLVINE OMC ONE-POINT LIQUID LIMIT METHOD
ONE-POINT MAXIMUM DENSITY METHOD ONSHORE CURRENT ON-SITE HAZARDOUS WASTE MANAGEMENT FACILITY
ONTOGENY OOLITE OOLITIC
OOZE OPA OPACITY
OPEC OPEN BURNING OPEN CHANNEL
OPEN DUMP (Waste Control) OPEN STANDPIPE PIEZOMETER OPEN WELL
OPEN-CHANNEL DRAINAGE OPEN-CHANNEL FLOW OPEN-ENDED WELL
OPTIMUM LIQUID CONTENT (OLC) OPTIMUM MOISTURE CONTENT (OMC) ORBITAL
ORDER (Soil Classification) ORDERED (Crystal) ORE
ORGANIC ORGANIC CHEMISTRY ORGANIC CLAY
ORGANIC COMPOUND ORGANIC DEPOSIT ORGANIC LOADING
ORGANIC LOADING RATE (Biological Filters) ORGANIC LOADING RATE (Ponds) ORGANIC MATERIAL
ORGANIC MATTER ORGANIC NITROGEN ORGANIC PHOSPHORUS
ORGANIC POLLUTANTS ORGANIC SILT ORGANIC SOILS
ORGANIC TEXTURE ORGANISM ORGANOCLAYS
ORGANOPHOSPHATES ORIENTATION (Polymers) ORIENTED WATER
ORIFICE PLATE ORIGIN TIME (Earthquake) ORNL
OROGENY OROHYDROGRAPHY ORP
ORTERDE See ORTHOCLASE ORTHOGONAL SHEAR WAVE
ORTHORHOMBIC ORTHOTROPIC ORTSTEIN
OSHA OSM OSMOSIS
OSMOSIS FLOW OSMOSIS, REVERSE OSMOTIC EQUIVALENT
OSMOTIC PRESSURE OSMOTIC WATER OST
OSTP OSW OTAG
OTC OTE OTEC
OTR OUR OUTCROP
OUTER-SPHERE COMPLEXATION OUTFALL OUTFALL SEWER
OUTFLANKING OUTHOUSE OUTLET
OUTLET CHANNEL OUTLET CONTROL OUTLET LOSS
OUTWASH OUTWASH PLAIN OVEN-DRIED SOIL
OVER-AGING OVERBURDEN OVERBURDEN PRESSURE
OVERCONSOLIDATED PRESSURE OVERCONSOLIDATED SOIL DEPOSIT OVERCONSOLIDATED SOIL, HEAVILY
OVERCONSOLIDATED SOIL, LIGHTLY OVERCONSOLIDATION RATIO (OCR) OVERFLOW RATE (OFR)
OVERFLOW WEIR OVERFLOWED LAND OVERLAND FLOW
OVERLAND RUNOFF OVERTEMPERING OVERTONES
OVERTURNING (Wind) OVERTURNING MOMENT OVER-YEAR STORAGE
OXALIC ACID OXBOW LAKE OXIDANT
OXIDATION OXIDATION CELL OXIDATION DITCH
OXIDATION NUMBER OXIDATION POND OXIDATION-REDUCTION POTENTIAL (ORP)
OXIDATION-REDUCTION REACTION OXIDE OXIDES OF NITROGEN
OXIDIZING AGENT OXYGEN OXYGEN BALANCE
OXYGEN CONSUMPTION OXYGEN CYCLE OXYGEN DEFICIENCY
OXYGEN RELEASE COMPOUND (ORC) OXYGEN SAG OXYGEN SCAVENGER
OXYGEN TRANSFER OXYGEN TRANSFER RATE OXYGEN UPTAKE
OZOKERITE OZONATION OZONATOR
OZONE OZONE GENERATOR OZONE LAYER




ENVIRONMENTAL GEOTECHNOLOGY DICTIONARY
Edited By
Hsai-Yang Fang, Ph.D
Professor Emeritus
Lehigh University. Bethlehem, PA
Distinguished Fellow
Global Institute for Energy & Environmental Systems
The University of North Carolina at Charlotte, Charlotte, NC

Copyright Reserved 2006

Environmental geotechnology is a relatively new and interdisciplinary subject, which covers soil, water and rock and their interaction with various environmental cycles including the atmosphere, biosphere, hydrosphere, lithosphere, as well as geomicrobiosphere. To tackle this complex subject, it is necessary to have knowledge from other disciplinary fields including agricultural science, biology, environmental science, geology, microbiology, mineralogy, and physicochemistry. Therefore, a uniform glossary of terms, definitions, nomenclature, abbreviation, acronym, symbols and units is needed for general discussions, reports and documents to minimize confusion and to improve the effectiveness for the environmental aspects of geotechnical problems. Some important information is collected, compiled and edited, and in spite of careful preparation of this dictionary, there cannot be avoided some missing or misinterpreted terms, typing errors, etc. The editor hopes, however, that with the aid of suggestions and criticism, there can be improvement for a later edition.
Thanks to many government agencies, professional societies and private organizations including American Society of Civil Engineers (ASCE), American Society for Testing and Materials (ASTM), Transportation Research Board (TRB), International Society of Environmental Geotechnology (ISEG), U.S. Environmental Protection Agency (EPA), U.S. Department of Energy (DOE) for providing useful documents for preparation of the dictionary. Also thanks to Prof. Charles Ochola, Villanova University, Prof. Tae-Hyung Kim, Korea Maritime University, Ms. Eleanor S. Nothelfer of Fritz Engineering Laboratory, Lehigh University and Mr. Gustavo Borel Menezes of Global Institute for Energy and Environmental Systems (GIEES), University of North Carolina at Charlotte for their assistance during various phases of preparation of the manuscript.
Acknowledgment is made to Review Committee Members for their time and willingness to review the manuscripts.

Prof. Ronald C. Chaney, Humboldt State University, Arcata, CA
Prof. John L. Daniels, The University of North Carolina at Charlotte, NC
Prof. Jeffrey C. Evans, Bucknell University, Lewisburg, PA
Prof. T. Cassia De Brito Galvao, Universidade Federal de Minas Gerais, BRAZIL
Prof. Hilary I. Inyang, The University of North Carolina at Charlotte, NC
Dr. Abidin Kaya, URS Corporation, Honolulu, HI
Prof. Jai-Young Lee, The University of Seoul, KOREA
Prof. Irene M.C. Lo, Hong Kong University of Science & Technology, Hong Kong
Prof. Horace K. Moo-Young Jr., Villanova University, PA
Dr. Jouko Saarela, Finnish Environmental Institute, FINLAND
Prof. Robert W. Sarsby, The University of Wolverhampton, U.K.
Prof. Leonardo Zeevaert, Universidad Nacional Automoma de Mexico, MEXICO
Prof. Thomas F. Zimmie, Rensselaer Polytechnic Institute, NY

Hsai-Yang Fang
February 15, 2006

Web Edition by:
Gustavo Borel Menezes, GIEES, UNC Charlotte
Simon Chung, GIEES, UNC Charlotte

Developed by: Gustavo Borel Menezes