| [h=2]Abbreviation - Acronym[/h] | [h=2]Meaning - Explanation[/h] |
| AC | Alternating current |
| ADI | Acceptable daily intake |
| AOC | Assimilable Organic Carbon |
| AOS | Adult onsite exposure |
| AWWA | American Water Works Association (www.awwa.org) |
| AWWARF | American Water Works Association Research Foundation (www.awwarf.com) |
| BAC | Biological Activated Carbon (water treatment) |
| BAF | Biological Aerated Filter (wastewater treatment) |
| BATNEEC | Best Available Techniques Not Entailing Excessive Costs |
| BOD5 | Biochemical Oxygen Demand (over a 5 day period) |
| BPEO | Best Practicable Environmental Option |
| BSE | Bovine Spongiform Encephalopathy |
| BSRIA | Building Services Research & Information Association (UK) |
| BTEX | Benzene, toluene, ethylbenzene, and total xylenes |
| CAA | Clean air act (EPA) |
| CAP | Common Agricultural Policy (European Union) |
| CAPEX | Capital Expenditure investment |
| CCTV | Closed Circuit Television |
| CESWI | Civil Engineering Specification for the Water Industry |
| CFC | Chlorofluorocarbons |
| cfu | Colony Forming Unit (Microbiology) |
| CHP | Combined Heat and Power |
| CJD | Creutzfeld-Jakob's Disease |
| COD | Chemical Oxygen Demand (water treatment) |
| CORDIS | Community Research and Development Information Service ( of the European Community) |
| CSO | Combined Sewer Overflow |
| CVOC | Chlorinated volatile organic compound |
| DAF | Dissolved Air Flotation (water and wastewater treatment) |
| DBP | Disinfection By-Product |
| DMA | District Meter Area (leakage control) |
| DO | Dissolved Oxygen (water chemistry) |
| DOC | Dissolved organic carbon |
| DTI | Department of Trade and Industry (UK) |
| EBCT | Empty Bed Contact Time (water treatment) |
| EEA | European environmental agency |
| EEC | European economic Community or Commision |
| EHS | Environment and Heritage Service (www.doeni.gov.uk) |
| EMAS | Eco-Management and Audit Scheme |
| EMS | Environmental Management System |
| EPA | Environment Protection Agency (US) |
| ESA | Environmentally Sensitive Area |
| EQO | Environmental Quality Objective |
| EQS | Environmental Quality Standard |
| EU | European Union |
| EUREAU | European Union of National Associations of Water Suppliers and Waste Water Services |
| EWPCA | European Water Pollution Control Association (www.atv.de/ewpca/ewpca.htm) |
| EWRI | European Water Research Institutes partnership |
| FAO | Food and Agriculture Organization ( of the United Nations) |
| FI | Fouling index |
| GAC | Granular Activated Carbon |
| GC | Gas chromatography |
| GCMS | Gas chromatograph + mass spectrometer |
| GLV | Guideline Value (water quality standards) |
| GMO | Genetically Modified Organism |
| HACCP | Hazard Analysis and Critical Control Point |
| HDPE | High density polyethylene |
| HC | hydrocarbons |
| IPC | Integrated Pollution Control |
| IWA | International Water Association |
| IWSA | International Water Supply Association |
| IWW | Industrial waste water |
| IPPC | Integrated Pollution Prevention and Control |
| JTU | Jackson turbidity unit |
| LDPE | Low density polyethylene |
| MAC | Maximum admissible concentration |
| MB | Mixed Bed |
| MCL | Maximum Contaminant Level (water quality standards) |
| mgd | Million gallons per day |
| mld | Megalitres per day |
| MTBE | Methyl-tert-butyl ether (water chemistry) |
| NAPL | Non Aqueous phase liquid |
| ND | Not detected |
| NF | Nanofiltration |
| NOx | Nitrogen Oxide (Air Quality) |
| NOSWA | North of Scotland Water Authority |
| NTU | Nephelometric Turbidity Unit (water chemistry) |
| OECD | Organisation for Economic Co-operation and Development (www.oecd.org) |
| OPEX | Operating Expenditure on a recurring annual basis |
| OSEC | On-Site Electrolytic Chlorination (water treatment) |
| PAC | Powdered Activated Carbon (water treatment) |
| PAH | Polycyclic Aromatic Hydrocarbons (water chemistry) |
| PCV | Prescribed Concentration or Value (water quality standards) |
| pe | Population Equivalent (wastewater treatment) |
| pH | Hydrogen potential |
| ppb | Parts per billion |
| ppm | Parts per million |
| ppt | Parts per trillion |
| PRV | Pressure Reducing Valve (water distribution) |
| PTE | Potentially Toxic Element |
| PVC | Polyvinyl Chloride |
| RBC | Rotating Biological Contactor (wastewater treatment) |
| RBTS | Reed Bed Treatment System (wastewater treatment) |
| RO | Reverse Osmosis (water treatment) |
| RTC | Real Time Control |
| SBR | Sequencing Batch Reactor (wastewater treatment) |
| SCADA | Supervisory Control and Data Acquisition (system) |
| SDWA | Safe Drinking Water Act (US legislation) |
| SME | Small and Medium Sized Enterprises |
| SI | International system of Units |
| SS | Suspended Solids (wastewater treatment) |
| SSSI | Site of Special Scientific Interest |
| STW | Sewage Treatment Works |
| TAD | Thermophilic Aerobic Digestion (wastewater sludge treatment) |
| tds | Total dissolved solids (water chemistry) or tonne of dried solids (sewage sludge) |
| THM | Trihalomethane (water chemistry) |
| TDS | Total dissolved solids |
| TKN | Total Kjeldahl nitrogen |
| TOC | Total Organic Carbon (water chemistry) |
| TSS | Total suspended solids |
| TTHMs | Total Trihalomethanes |
| TWL | Top Water level (water reservoirs) |
| TZW | Technologiezentrum Wasser (Karlsruhr, Germany) |
| UNEP | United Nations Environment Programme |
| UNESCO | United Nations Educational, Scientific and Cultural Organization |
| UV | Ultraviolet Radiation |
| VFA | Volatile Fatty Acid (wastewater chemistry) |
| VOC's | Volatile Organic Compound(s) or Chemicals |
| WC | Water column |
| WEF | Water Environment Federation (USA) (www.wef.org) |
| WERF | Water Environment Research Foundation (USA) (www.werf.org) |
| WTP | Water treatment plant |
| WWTP | Waste water treatment plant |
| WHO | World Health Organization |
Read more: http://www.lenntech.com/water-abbreviations-acronyms.htm#ixzz1eQgQVO4u
