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 Laboratory locations: Schedule of Accreditation 2 Pine Trees, Chertsey Lane, Staines-upon-Thames, TW18 3HR, UK ridgend Science Park 2 Technology Drive ridgend Mid-Glamorgan CF31 3NA Contact: Mrs M J Harman Tel: +44 (0) Fax: +44 (0) michelle.harman@severntrent.co.uk Website: s covered by the organisation and their relevant activities details Activity code Address ridgend Science Park 2 Technology Drive ridgend Mid Glamorgan CF31 3NA Local contact Mr K Denny Tel: +44 (0) kevin.denny@severntrent.co.uk Testing: Chemical Address Church Wilne Laboratory Church Wilne STW Draycott Road Sawley Long Eaton Nottingham NG10 3AZ Local contact eata Michalik Tel: +44 (0) beata.michalik@severntrent.co.uk Testing: Microbiological Sampling and on site testing: Co-ordination of the sampling of water for subsequent chemical, microbiological and cryptosporidium testing CW Address Shelton Laboratory Welshpool Road Shelton Shrewsbury SY3 8J Local contact eata Michalik Tel: +44 (0) beata.michalik@severntrent.co.uk Testing: Microbiological Sampling and on site testing: Co-ordination of the sampling of water for subsequent chemical, microbiological and cryptosporidium testing S Address Longbridge Stratford Road Warwick CV34 6RA Local contact Rebecca Davies Tel: +44 (0) rebecca.davies@severntrent.co.uk Sampling and on site testing: Co-ordination of the sampling of water for subsequent chemical, microbiological and cryptosporidium testing L Assessment Manager: JY Page 1 of 14

2 details Activity code Address Mythe WTW Mythe Road Tewkesbury Gloucester GL20 6AA Local contact Rebecca Davies Tel: +44 (0) Sampling and on site testing: Co-ordination of the sampling of water for subsequent chemical, microbiological and cryptosporidium testing M Assessment Manager: JY Page 2 of 14

3 DETAIL OF ACCREDITATION WATERS Testing for the purpose of enforcement of the Water Supply (Water Quality) Regulations 2016 (SI 614) and Water Supply (Water Quality) Regulations 2010 (Wales) as amended (where relevant) The testing is in accordance with the Drinking Water Testing Specification (DWTS) Documented In-House Methods based on Standing Committee of Analysts Methods for the Examination of Waters and Associated Materials, HMSO Publication, Year and ISN No given where applicable Chemical tests: Acid Herbicides: 2,3,6-TA 2,4,5-T 2,4-D 2,4-D enazolin entazone romoxynil Clopyralid Dicamba Dichlorprop Fenoprop Fluroxypyr Ioxynil MCPA MCP Mecoprop Metaldehyde Triclopyr using direct injection LCMSMS Pentachlorophenol (non- DWTS) Non DWTS Total pesticides (by Calculation) Assessment Manager: JY Page 3 of 14

4 (cont d) Polycyclic Aromatic Hydrocarbons: enz(b)fluoranthene enz(k)fluoranthene enz(a)pyrene enz(g,h,i)perylene Indeno(1,2,3-cd)pyrene Total PAH (by calculation) using HPLC and Fluorescence detection Polar pesticides: Atrazine Carbendazim Carbetamide Chlortoluron Cyanazine Diazinon Dichlorvos Diflufenican Dimethoate Diuron Ethofumesate Fenpropidin Fenpropimorph Flutriafol Fosthiazate Isoproturon Linuron Metamitron Metazachlor Methabenzthiazuron Monuron Pendimethalin Pirimicarb Pirimiphos-Methyl Propachlor Propetamphos using direct injection LCMSMS (LC triple quadruple MS) Assessment Manager: JY Page 4 of 14

5 Polar pesticides: Propiconazole Propyzamide Simazine Terbutyne Triademefon Triazaphos Trinexepac-ethyl using direct injection LCMSMS (LC triple quadruple MS) cont d Trichloromethane (chloroform) romodichloromethane Chlorodibromomethane Tribromomethane (bromoform) Total THMS (by calculation) Tetrachloromethane (carbon tetrachloride) Trichloroethene Tetrachloroethene Total Trichloroethene and Tetrachloroethene (by calculation) 1,1,1 trichloroethane 1,2 dichloroethane 1,2 dibromoethane Methyl tertiary butyl ether (MTE) Tertiary Amyl Methyl Ether (TAME) enzene Toluene Ethylbenzene o-xylene m/p-xylene Total Xylenes (by calculation using headspace and detection by GCMS Assessment Manager: JY Page 5 of 14

6 Drinking, Surface and Groundwater Glyphosate using LC-QQQ Organochlorine Pesticides, Polychlorinated iphenyls and Selected Non-Polar Organic Compounds: 1,2,4-Trichlorobenzene Hexachlorobutadiene Dichlobenil alpha-hch beta-hch Hexachlorobenzene gamma-hch delta-hch Chlorothalonil Heptachlor Aldrin Isodrin cis-heptachlor Epoxide trans-heptachlor Epoxide o,p -DDE alpha-chlordane alpha-endosulphan p,p -DDE Dieldrin o,p -TDE Endrin beta-endosulphan p,p -TDE o,p -DDT p,p -DDT Methoxychlor using GC MS MS Assessment Manager: JY Page 6 of 14

7 (cont d) Organochlorine Pesticides, Polychlorinated iphenyls and Selected Non-Polar Organic Compounds: (cont d) using GC MS MS (cont d) EPTC Tecnazene Trifluralin Disulphoton Fenitrothion cis-permethrin trans-permethrin PC 28 PC 52 PC 101 PC 118 PC 153 PC 138 PC 180 Cyfluthrin Cypermethrin Fenvalerate Deltamethrin Phorate Tri-allate Chlorpyrifos-Methyl Parathion-Ethyl Chlorpyrifos-Ethyl Carbophenothion Assessment Manager: JY Page 7 of 14

8 (cont d) Pesticides: using LC-HRMS Asulam Azoxytrobin oscalid Chloridazon Cyproconazole Dimethamid p Epoxiconazole Flufenacet Flusilazole Isoxaben Kresoxim-methyl Metalaxyl Methiocarb Metribuzin Oxadixyl Quinmerac Prosulfocarb Tebuconazole Assessment Manager: JY Page 8 of 14

9 Potable water only Odour, threshold number of treated water Quantitative, based on Microbiology of Drinking Water part Potable water only Taste, Threshold number of treated water Quantitative based on Microbiology of Drinking Water part romate romide Chlorate Chloride using Ion Chromatography Metrohm Potable waters only Total and dissolved metals: using Nexion ICPMS Antimony Arsenic oron arium Cadmium Chromium Copper Lead Molybdenum Nickel Selenium Uranium Zinc Assessment Manager: JY Page 9 of 14

10 Total and dissolved metals: Arsenic oron arium Cadmium Chromium Copper Molybdenum Nickel Lead Antimony Selenium Uranium Zinc using Agilant ICPMS Potable waters only Elements: Aluminium Calcium Iron Magnesium Manganese Potassium Sodium using ICP-OES Mercury HMSO:1985 ISN SC 18 using Cold vapour & Atomic Fluorescence Phosphorus HMSO:1996 ISN Conductivity Method using manual conductivity meter and robotic determination Assessment Manager: JY Page 10 of 14

11 Cyanide (Total) Method using segmented flow analysis Fluoride Method using Ion selective electrode manual and automated Ammonia Nitrite Chloride Orthophosphate Sulphate TON Silicate Alkalinity Nitrate (by calculation) Method using Konelab ph Method using manual ph electrode and robotic determination Turbidity Method using a manual turbidity meter and robotic determination Organic Carbon/Non Purgeable Organic Carbon Method using combustion and NDIR gas analysis Colour Method visible spectrometry and robotic determination Suspended Solids (105 o C) Method using gravimetry UV absorbance and % transmission Method using spectrometry ph Electrical Conductivity Turbidity Colour Method using Skalar automated robot Assessment Manager: JY Page 11 of 14

12 Radiochemical Tests Potable Water only Gross Alpha (relative to Am- 241) and Gross eta (relative to K-40) activity Potable Water only Tritium using liquid scintillation counting WATERS: Potable, Raw (Surface and Ground) Waters Testing for the purpose of enforcement of the Water Supply (Water Quality) Regulations 2016 (SI 614). and Water Supply (Water Quality) Regulations 2010 (Wales) as amended (where relevant) Testing is in accordance with the Drinking Water Testing Specification (DWTS) Microbiological Testing Documented In-House Methods based on Standing Committee of Analysts Methods for the Examination of Waters and Associated Materials Coliforms and Escherichia coli, presumptive and confirmed Clostridium perfringens, presumptive and confirmed Heterotrophic plate counts at 22ºC and 37ºC In-house method based on The Microbiology of Drinking Water Part 4 (2009) by membrane filtration (method 21025) using MLGA In-house method based on The Microbiology of Drinking Water Part 6 (2010) by membrane filtration (method 21025) using TSC In-house method based on The Microbiology of Drinking Water Part 7 (2012) by pour plate using YEA CW, S CW, S CW, S Assessment Manager: JY Page 12 of 14

13 WATERS: Potable, Raw (Surface and Ground) Waters (cont d) Microbiological Testing (cont d) Documented In-House Methods based on Standing Committee of Analysts Methods for the Examination of Waters and Associated Materials (cont d) Enterococci, presumptive and confirmed In-house method based on The Microbiology of Drinking Water Part 5 (2012) by membrane filtration (method 21025) using MEA CW, S Cryptosporidium In-house method based on The Microbiology of Drinking Water Part 14 (2010) using FiltaMax and FiltaMax Xpress TM and 13immune fluorescent staining for identification by microscopy CW Assessment Manager: JY Page 13 of 14

14 WATER TREATMENT WORKS: Raw and Drinking water sources Sampling and site testing for the purpose of enforcement of the Water Supply (Water Quality) Regulations 2016 (SI 614). and Water Supply (Water Quality) Regulations 2010 (Wales) as amended (where relevant) Methodology meeting the requirements of the Drinking Water Testing Specification CW, S, L, M, P Sampling is in accordance with the Drinking Water Testing Specification (DWTS) RESERVOIRS: Sampling taps Sampling HOUSEHOLD AND INDUSTRIAL: Drinking water taps CRYPTOSPORIDIUM RIGS For subsequent Chemical, Microbiological and Cryptosporidium analysis In house methods: 81001S Sampling at STW and DVW Sites 81003S Other sampling (Cryptosporidium) WATER TREATMENT WORKS: Raw and Drinking water sources Chemical Tests Total Residual Chlorine Free Residual Chlorine In house method: 81002S Chlorine Analysis, Meter Use, Calibration and AQC 81005S validation and support processes END Assessment Manager: JY Page 14 of 14