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Protocol of Accepted Drinking Water Testing Methods

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Protocol of Accepted Drinking Water Testing Methods Protocol of Accepted Drinking Water Testing Methods Version 2.0 This page has been intentionally left blank Protocol of Accepted Drinking Water Testing Methods Version 2.0 Laboratory Services Branch Ministry of the Environment May 2010 PIBS 4465e02 Ontario.ca/Environment © 2010, Queen’s Printer for Ontario This page has been intentionally left blank Version 2.0 May 2010 TABLE OF CONTENTS TABLE OF CONTENTS ........................................................................................1 1. INTRODUCTION .........................................................................................3 2. SCHEDULE 1, MICROBIOLOGICAL PARAMETERS ........................4 2.1. Total Coliforms....................................................................................................................4 2.2. Escherichia coli ...................................................................................................................5 2.3. Heterotrophic Plate Count....................................................................................................7 2.4. Clostridium ..........................................................................................................................7 2.5. Cryptosporidium ..................................................................................................................8 3. SCHEDULE 2, CHEMICAL PARAMETERS...........................................8 3.1. Volatile Organic Compounds (VOCs).................................................................................8 3.2. Trace Metals.......................................................................................................................10 3.3. Mercury..............................................................................................................................15 3.4. Nitrite, Nitrate, and Nitrate + Nitrite .................................................................................16 3.5. Triazines (N-Containing Herbicides).................................................................................18 3.6. Carbamates.........................................................................................................................19 3.7. Organochlorine Pesticides and Polychlorinated Biphenyls (PCBs) ..................................21 3.8. Organophosphorus Pesticides............................................................................................23 3.9. Chlorophenols (CPs) & Phenoxy Acids (PAs) ..................................................................24 3.10. Quaternary Ammonium Compounds.................................................................................26 3.11. Urea Derivative..................................................................................................................27 3.12. Glyphosate .........................................................................................................................28 3.13. Fluoride..............................................................................................................................30 3.14. Benzo(a)pyrene..................................................................................................................31 3.15. Cyanide ..............................................................................................................................32 3.16. Dioxins and Furans – Toxic Equivalent Quantity..............................................................33 3.16.1 Dioxins and Furans – Calculation of Toxic Equivalent Quantity (TEQ)...............34 3.17. Nitrilotriacetic Acid (NTA)...............................................................................................35 3.18. N-nitrosodimethylamine (NDMA)....................................................................................35 3.19. Bromate..............................................................................................................................36 - 1 - Version 2.0 May 2010 3.20. Microcystin LR..................................................................................................................37 3.20.1 Screening Tests for Total Microcystins..................................................................38 3.21. Chloramines .......................................................................................................................39 4. ADDITIONAL PARAMETERS (CERTIFICATE OF APPROVAL OR MINISTRY ORDERS) ..........................................................................................39 4.1. Sodium ...............................................................................................................................39 4.2. Ammonia............................................................................................................................41 4.3. Biochemical Oxygen Demand (5-Day BOD)....................................................................42 4.4. Bromide, Chlorate and Chlorite.........................................................................................42 4.5. Chemical Oxygen Demand................................................................................................44 4.6. Haloacetic Acids................................................................................................................45 4.7. Hexavalent Chromium.......................................................................................................46 4.8. Ortho-phosphate.................................................................................................................47 4.9. Phenolic Compounds – Total (4AAP) ...............................................................................48 4.10. Silica ..................................................................................................................................49 4.11. Taste and Odour Compounds.............................................................................................50 4.12. Total Kjeldahl Nitrogen (TKN) .........................................................................................51 4.13. Total Phosphorus...............................................................................................................52 4.14. Formaldehyde ....................................................................................................................53 4.15. Emerging Complex Contaminants.....................................................................................54 5. ACRONYMS................................................................................................55 6. HISTORY OF CHANGES .........................................................................56 6.1 Version 1.0, March 17, 2008 .............................................................................................56 6.2 Version 2.0, May, 2010......................................................................................................58 «Cette publication hautement spécialisée n’est disponible qu’en anglais en vertu du règlement 441/97, qui en exempte l’application de la Loi sur les services en français. Pour obtenir de l’aide en français, veuillez communiquer avec le ministère de l’Environnement au 416 235- 6348.» - 2 - Version 2.0 May 2010 1. INTRODUCTION This document sets out testing methods that may be used for the conduct of tests of Ontario drinking water. Under the Safe Drinking Water Act, 2002, only licensed laboratories located in Ontario and eligible out-of-province laboratories may conduct tests on samples of drinking water. In addition, a laboratory must be accredited for the selected method by: the Standards Council of Canada (SCC); by the Canadian Association for Laboratory Accreditation (CALA); by an accreditation body that, in the Director’s opinion, is equivalent to the SCC; or the laboratory must be authorized by the Director to conduct a particular test without accreditation, in accordance with the provisions of the Act. In addition to these requirements, a laboratory must use validated methods for the parameters outlined in this document, to conduct drinking water tests, including demonstrating that they meet or exceed the required reporting detection limit (RDL). The methods that follow are derived from one of five sources: 1. Methods used by the Ministry of the Environment (MOE) Laboratory Services Branch (LaSB) for the testing of drinking water for which the laboratory has been accredited through the SCC or CALA. Requests for these methods can be sent to [email protected]. These methods are indicated as LaSB Method. 2. Methods as described in the reference Standard Methods for the Examination of Water and Wastewater, 20th Edition, 1998, and 21st Edition, 2005, American Public Health Association, American Waterworks Association (AWWA), Water Environmental Federation. These methods are indicated as AWWA Method. 3. Methods of the United States Environmental Protection Agency (US EPA) available through the USEPA (www.epa.gov), the National Technical Information Service, Springfield, Virginia, or the National Environmental Methods Index (www.nemi.gov). These methods are indicated as US EPA Method. 4. Methods of ASTM International (formerly the American Society for Testing and Materials) (ASTM), Vol. 11.01 and 11.02, 2008, available from ASTM International, www.astm.org. These methods are indicated as ASTM Method. 5. Methods approved by AOAC International (formerly the Association of Official Analytical Chemists) in the “Official
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