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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Natural attenuation: Bioremediation at a given site as a function of the naturally occurring microbial population and naturally occurring chemical, biological processes.

Non-Aqueous Phase Liquid (NAPL): Contaminants that remain undiluted as the original bulk liquid in the subsurface, e.g. spilled oil. (See: fee product5.)

Non-Detect:  A condition in which an alantical parameters is not present in sufficient concentration to be detected by a given laboratory method detection limit (MDL)

Non-potable: Water that is unsafe or unpalatable to drink because it contains pollutants, contaminants, minerals, or infective agents.

Nutrient: Any substance assimilated by living things that promotes growth. The term is generally applied to nitrogen and phosphorus in wastewater, but is also applied to other essential and trace elements.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Abbreviations & Acronyms:

BTEX:  Benzene, Toluene, Ethylbenze and Xylenes (typical VOC parameters for assessment of hydrocarbon contamination).

CofA:  Certificate of Approval (license issued by MOE for a specific system or process).

DRO:  “Diesel” Range Organic

EPA:  Environmental Protection Act

GAC:  Granular Activated Carbon (i.e. filter media for treatment of hydrocarbon contaminated air or water).

GRO:  “Gasoline” Range Organic

HO:  “Heavy Oil” Range Organic

IAQ:  Interior Air Quality

MDL:  Method Detection Limit.  (i.e. The lowest detectable level of a given parameter, by laboratory analytical instruments).

MOE:  Ministry of the Environment (Ontario)

MTU:  Mobile Treatment Unit (employed by D.L. Services for treatment/control of contaminated ground and surface water).

PHC: Petroleum Hydrocarbons

PID:  Photo-ionization Detector

SVOC:  Semi-Volatile Organic Compound

SWL:  Static Water Level

TPH:  Total Petroleum Hydrocarbons

TSSA:  Technical Standards and Safety Authority

VOC:  Volatile Organic Compound
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