Schedule of Accreditation issued by United Kingdom Accreditation Service 2 Pine Trees, Chertsey Lane, Staines-upon-Thames, TW18 3HR, UK

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1 2 Pine Trees, Chertsey Lane, Staines-upon-Thames, TW18 3HR, UK The Water Quality Centre Contact: Janet Bowman Spencer House Laboratory Tel: +44 (0) Manor Farm Road Fax: +44 (0) Reading Berkshire Website: RG2 0JN Testing performed at the above address only WATERS DETAIL OF ACCREDITATION The laboratory holds a flexible scope of accreditation for inorganic and organic test methods to incorporate additional determinands or matrices to existing accredited methods and to self-authorise the use of replacement equipment/instruments using the same analytical technology Please contact the laboratory for details of the individual determinands and matrices that can be analysed. Meeting the requirements of The Drinking Water Testing Specification (DWTS) and the MCERTS Performance Standard for Organisations Undertaking Sampling and Chemical Testing of Water - Part 1 - Sampling and chemical testing of untreated sewage, treated sewage effluents and trade effluents as applicable Drinking Water and Assiciated Raw Waters (DWTS) Raw and drinking waters Analysis for the purpose of the enforcement of The Water Supply (Water Quality) Regulations 2000 Ammoniacal Nitrogen Ammonium (by calculation) Documented In-House Procedures based on/incorporating published procedures in the HMSO series Methods for the Examination of Waters and Associated Materials, (MEWAM), referenced by the ISBN number and year where appropriate. Any additional or alternative reference is also identified. Methodology meeting the requirements of The Drinking Water Testing Specification (DWTS) LP/R/528 Part 1 ISBN , (Method F), 1981 Assessment Manager: LB Page 1 of 15

2 Raw and drinking waters (cont d) (cont'd) Chloride LP/R/528 Part 1 ISBN , 1981 Phosphate : Soluble Reactive LP/R/528 Part 1 ISBN , 1980 Raw water (surface and groundwater), drinking water and saline water Total Dissolved Solids LP/R/026 by gravimetry Raw and drinking waters Oxidised Nitrogen LP/R/528 Part 1 ISBN , 1981 Raw and drinking waters Sulphate LP/R/528 part 1 ISBN :1979 By automated colorimetry Raw and drinking waters ph LP/R/12 Part 1 (Manual) ISBN , 1978 by manual ph probe Raw water (surface and groundwater) Raw and drinking waters %UV Transmission at 254nm Elements: Copper Zinc LP/R/157 by spectrometry LP/R/563 using ICP-MS/ICP-OES Assessment Manager: LB Page 2 of 15

3 Raw and drinking waters (cont d) (cont'd) Raw and drinking waters Elements: LP/R/563 using ICP-MS only Antimony Arsenic Cadmium Cobalt Lead Mercury Nickel Selenium Silver Tin Titanium Tungsten Vanadium Elements: Aluminium Barium Beryllium Boron Calcium Chromium Iron Lithium Magnesium Manganese Molybdenum Potassium Sodium Strontium Anions: Bromate Bromide Chlorate Fluoride LP/R/563 using ICP-OES only LP/R/547 by ion chromatography Assessment Manager: LB Page 3 of 15

4 Raw and drinking waters (cont d) (cont'd) Polycyclic Aromatic Hydrocarbons (PAHs): Fluoranthene Benzo(b)fluoranthene Benzo(k)fluoranthene Benzo(a)pyrene Benzo(ghi)perylene Indeno(1,2,3,cd)pyrene Trihalomethanes and Chlorinated Solvents: Benzene Bromoform Bromodichloromethane Carbon tetrachloride Chloroform Dibromochloromethane ethylbenzene Tetrachloroethene Toluene LP/R/409 ISBN , 1985 by HPLC-fluorescence LP/R/496 ISBN , 1984 by Headspace GC-MS Trihalomethanes and Chlorinated LP/R/496 Solvents: ISBN , ,1,1-trichloroethane by Headspace GC-MS 1,2 dichloroethane Trichloroethene o-xylene m/p xylene Assessment Manager: LB Page 4 of 15

5 Raw and drinking waters (cont d) (cont'd) Dissolved Hydrocarbons (10 specified compounds) Metaldehyde LP/R/485 ISBN , 1984/5 by liquid/liquid extraction GC-MS LP/R/607 by on-line enrichment LC-MS-MS Alkalinity LP/R/528 Part 1 ISBN , 1981 Colour Conductivity Cyanide: Total Hardness: Total ( LP/R/14 ISBN , (Part A), 1981 by manual colorimetry LP/R/13 (Manual) ISBN , 1978 by manual conductivity meter LP/R/294 Standard Method for the Determination of Water and Wastewater, 17th Edition, 1989 (4500-CN), and, US-EPA, treated 335.3/1983 by skalar autoanalyser LP/R/528 Part 1by automated colorimetry Assessment Manager: LB Page 5 of 15

6 Raw and drinking waters (cont d) (cont'd) Nitrate By Calculation from LP/R/528 Part 1 Nitrite LP/R/528 Part 1 ISBN , 1981 Silica: Soluble Reactive LP/R/528 Part 1 ISBN , 1980 Turbidity Organic Carbon: Total LP/R/15 (Manual) by turbidity meter LP/R/503 ISBN , 1979 by TOC analyser (chemical oxidation) Drinking waters Odour LP/R/113 based on SCA The determination of taste and odour in drinking waters (2014) using assessed panel Drinking Water, Surface Water and Ground Water Taste Colour Conductivity ph Turbidity LP/R/113 based on SCA The determination of taste and odour in drinking waters (2014) using assessed panel LP/R610 (Automated) Colorimetry (ISBN ) Conductivity meter (ISBN ) ph meter (ISBN ) Turbidimeter (ISBN ) Assessment Manager: LB Page 6 of 15

7 Raw and drinking waters (cont d) Raw (surface and groundwater) and drinking water Raw (surface and groundwater) and drinking water (cont'd) Neutral Herbicides: Carbendazim Carbetamide Monuron Simazine Tebuthiuron Chlortoluron Diuron Atrazine Isoproturon Metazachlor Linuron Ametryn Propazine Propyzamide Prometryn Terbutryn Flufenacet Quinmerac Acid Herbicides: Clopyralid Picloram Dicamba Fluroxypyr Bentazone Bromoxynil 2,4-D 2,4,5-T 2,4-DB Ioxynil Triclopyr Fenoprop Dichlorprop Pentachlorophenol MCPA MCPB MCPP (Mecoprop) LP/R/586 by LC-MS-MS LP/R/594 by SPE followed by LC- MS-MS Raw (surface and groundwater) and Glyphosate LP/R/595 by LC-MS-MS drinking water Assessment Manager: LB Page 7 of 15

8 WATERS (cont d): (cont'd) Surface water and ground water Phenol LP/R/117 by GCMS 2,4,5-trichlorophenol 2,4,6-trichlorophenol 2,4-dimethylphenol 2,5-dimethylphenol 3,5-dimethylphenol 2-chlorophenol 2-methylphenol 3-methylphenol 4-methylphenol 4-chloro-3-methylphenol 4-chlorophenol 2,4-dichlorophenol Pentachlorophenol Drinking water and surface water 2-Ethyl-4-Methyl-1,3-Dioxolane (2- EMD) 2-Ethyl-5,5-dimethyl-1,3-Dioxane (2-EDD) LP/R/596 by GCMS Assessment Manager: LB Page 8 of 15

9 Raw and drinking waters Drinking waters Surface, ground, drinking, saline and process waters Swabs Microbiological Tests Analysis for the purpose of the enforcement of The Water Supply (Water Quality) Regulations 2000 Coliforms (confirmed) and E coli (confirmed) Coliform identification Total Viable Count (22 C and 37 C) Enterococcus faecalis (presumptive) Enterococcus faecalis (confirmed) Clostridium Perfringens (presumptive and confirmed) Pseudomonas aeruginosa (presumptive and confirmed) Enumeration of Cryptosporidium oocysts Enumeration of Cryptosporidium oocysts and, and Giardia cysts Presence/absence of E.coli and coliforms Methodology meeting the requirements of The Drinking Water Testing Specification (DWTS) LP/R/316 using colilert based on MODW 2002 Part 4 LP/R/537 by in house method based on Vitek 2 Compact Instruction Manual - BioMerieux LP/R/133 by pour plate based on MODW 2007 Part 7 LP/R/66 by membrane filtration based on MODW 2010 Part 5 LP/R/354 by membrane filtration based on MODW 2007 Part 6 LP/R/70 by membrane filtration based on MODW 2010 Part 8 LP/R/453 using FiltaMax based on MODW 2010 Part 14 LP/R/445 by chemical flocculation based on MODW 2010 Part 14 LP/R/277 using Colilert-18 reagent based on MODW 2009 Part 4 Surface, ground and process waters Enumeration of E.coli and coliforms LP/R/316 using the Quantitray 2000 MPN method based on MODW 2009 Part 4 Radiochemical Tests Gross relative to 241 Am LP/R/422 Gross relative to 40 K ISO 9696 & ISO 9697 thick source method Assessment Manager: LB Page 9 of 15

10 Wastewaters Sewage and Trade Effluent (ISO only) WASTE Treated and untreated domestic wastewaters Ammoniacal Nitrogen Ammonium (by calculation) LP/R/528 Part 2 ISBN , (Method F), 1981 Chloride LP/R/528 Part 2 ISBN , 1981 Phosphate: Soluble Reactive LP/R/528 Part 2 ISBN , 1980 Oxidised Nitrogen LP/R/528 Part 2 ISBN , 1981 WASTE Untreated and treated domestic and industrial wastewaters Solids: Suspended Chemical Oxygen Demand LP/R/173 by gravimetry LP/R/381(C) ISBN (Method B) 1986 Sulphate LP/R/528 Part 2 ISBN , 1979 Assessment Manager: LB Page 10 of 15

11 WASTE Untreated and treated domestic and industrial wastewaters (cont d) Untreated and treated sewage effluent Elements: Cadmium Cobalt Lead Nickel Vanadium Elements: Antimony Arsenic Mercury Selenium Thallium Titanium Tungsten Elements: Aluminium Barium Beryllium Boron Calcium Chromium Copper Iron Lithium Magnesium Manganese Molybdenum Phosphorus Potassium Silver Sodium Strontium Zinc Silver LP/R/564 by ICPMS/ICPOES LP/R/564 by ICPMS only LP/R/564 by ICPOES only LP/R/564 by ICPMS only Assessment Manager: LB Page 11 of 15

12 WASTE Industrial wastewaters Treated sewage effluent and trade effluent (cont d) Free Cyanide Phenol Settleable solids Rapidly settleable solids Ammonia Sulphate Chloride Sulphide Oils and Greases 2-Ethyl-4-Methyl-1,3-Dioxolane (2- EMD) 2-Ethyl-5,5-dimethyl-1,3-Dioxane (2-EDD) LP/R/562 by continuous flow analysis LP/R/176 by gravimetry LP/R/528 Part 2 by automated discrete analyser LP/R/114 by visible spectrometry LP/R/295 ISBN , 1987 by soxhlet extraction and gravimetry LP/R/596 by GCMS Assessment Manager: LB Page 12 of 15

13 Wastewaters Sewage and Trade Effluent (ISO and MCERTS Waters) WASTEWATERS (cont d) Chemical Tests Documented In-House Method to meet the requirements of the Environment Agency MCERTS Performance Standard - sampling and chemical testing of untreated sewage, sewage effluent and trade effluent Treated sewage effluent and trade effluent to controlled waters Treated sewage effluent and trade effluent to controlled waters Suspended Solids Biochemical oxygen demand LP/R/173 by gravimetry LP/R/587 by robotic dissolved oxygen meter Treated sewage effluent Ammoniacal Nitrogen LP/R/528 Part 2 by discrete analyser Treated sewage effluent Treated sewage effluent Trade effluent to controlled waters Treated sewage effluent and trade effluent to controlled waters Treated sewage effluent Metals: (range ug/l) Cadmium Lead Nickel Phosphorus Metals: (range ug/l) Aluminium (Total and Dissolved ) Iron (Total and Dissolved) Boron Chromium Copper Phosphorus Zinc Aluminium (Total and Dissolved ) Iron (Total and Dissolved) ph Alpha HCH Beta HCH Gamma HCH Delta HCH LP/R/579 by ICP-MS LP/R/579 by ICP-OES LP/R/579 by ICP-OES LP/R/12 Part 2 (Manual) ISBN , 1978 by manual ph probe LP/R/583 by liquid/liquid extraction and GCMS determination Assessment Manager: LB Page 13 of 15

14 Soils and Sludges SOILS and SLUDGES Documented In-House Procedures SLUDGES % Dry Matter % Volatile Matter ph Metals: Arsenic Cadmium Chromium Copper Lead Mercury Molybdenum Nickel Selenium Zinc Antimony Thallium Boron Calcium Cobalt Iron Magnesium Manganese Phosphorous Potassium Vanadium LP/R/567 by LECO thermogravimetric analyser LPR183 by Gravimetry LP/R/576 using Sirius GLpH probe LP/R/578 - acid digestion followed by ICP-MS only LP/R/578 - acid digestion followed by ICP-MS determination only LP/R/578 - acid digestion followed by ICP-OES determination only Assessment Manager: LB Page 14 of 15

15 SEWAGE SLUDGE and BIOSOILDS Microbiological Tests E. coli (confirmed) Salmonella (confirmed) LP/R/372 based on Microbiology of Sewage Sludge 2003 Part 3 and Microbiology of Sewage Sludge 2004 Part 4 Materials Testing MATERIALS (NON-METALLIC) AND FITTINGS FOR USE WITH DRINKING WATER Chemical and Microbiological Tests Suitability of non-metallic material products for use in contact with water intended for human consumption with regards to their effect on the quality of water Site applied product sample preparation Odour and Flavour of Water Test Appearance of Water Test Growth of Aquatic Micro-organisms Test Extraction of Substances that may be of concern to Public Health Cytotoxicity Test Extraction of Metals Test BS 6920 (Parts 1-2):2014 & (Part 3):2000 WRAS Material Guidance and WRAS Guidance on the Requirements for Approval of Non-Metallic Materials in Fittings - Appendix A LP/R/MT01 LP/R/MT02 LP/R/MT03 LP/R/MT04 by dissolved oxygen meter LP/R/MT05 LP/R/256 LP/R/MT06 END Assessment Manager: LB Page 15 of 15