Schedule of ccreditation United Kingdom ccreditation Service Issue No: 035 Issue date: 04 ugust 2017 ccredited to The Laboratory London Road Redhill Surrey RH1 1LJ Contact: Mr Tonkin Tel: +44 (0)1737 772000 E-Mail: ndrew.tonkin@seswater.co.uk Website: www.waterplc.com Laboratory locations: below s covered by the organisation and their relevant activities details ctivity code ddress The Laboratory London Road Redhill Surrey RH1 1LJ Local contact Mr Tonkin Tel: +44 (0)1737 772000 Email: ndrew.tonkin@seswater.co.uk Environmental nalysis Site activities performed away from the locations listed above: details ctivity code Water Treatment Work Service Reservoirs Domestic Premises Sampling B ssessment Manager: LH2 Page 1 of 6
Schedule of ccreditation United Kingdom ccreditation Service ccredited to Issue No: 035 Issue date: 04 ugust 2017 DETIL OF CCREDITTION nalysis for the purpose of enforcement of The Water Supply (Water Quality) Regulations 2000 (SI 2000/3184) Methodology meeting the requirements of The Drinking Water Testing Specification WTERS Chemical Tests Raw and potable lkalinity s based on SC Method 1981 C (ISBN 0117516015) using an mmonia Free carbon dioxide Chloride Residual chlorine, free and total Colour Electrical conductivity Fluoride based on SC Method 1981 F (ISBN 0117516139) by In-House method based on Department of the Environment method in nalysis of Raw, Potable and Waste Waters, HMSO 1972 (SBN 117505129) by titration based on SC Method 1981 D (ISBN 0117516260) by based on SC Method 1980 C (ISBN 0117514934) using spectrophotometry based on SC Method 1981 3 (ISBN 0117519553) based on SC Method 1978 (ISBN 0117514284) based on SC Method 1982 (ISBN 0117516627) by ISE ssessment Manager: LH2 Page 2 of 6
Schedule of ccreditation United Kingdom ccreditation Service ccredited to Issue No: 035 Issue date: 04 ugust 2017 WTERS (cont d) Chemical Tests (cont d) Raw and potable (cont d) Hardness total based on SC Method 1981 (ISBN 0117516007) by Total oxidised nitrogen Nitrate Nitrite Orthophosphate ph Sulphate Turbidity Dissolved oxygen UV absorbance Quantitative taste and odour based on SC Method 1981 C (ISBN 0117515930) by calculated determinand based on TON method based on SC Method 1981 C (ISBN 0117515930) by based on SC Method 1980 (ISBN 0117515825) by based on SC Method 1988 (ISBN 0117514284) based on SC Method 1988 E (ISBN 0117522406) using an based on SC Method 1981 B2 (ISBN 011759553) by turbidimeter using an optical sensor based on SC Method 1980 (ISBN 0117515388) SC Method: The Determination of Taste and Odour in Drinking Water (2014) ssessment Manager: LH2 Page 3 of 6
Schedule of ccreditation United Kingdom ccreditation Service ccredited to Issue No: 035 Issue date: 04 ugust 2017 WTERS (cont d) Chemical Tests (cont d) Raw and potable (cont d) Metals: luminium Copper Iron Lead Manganese Zinc ntimony rsenic Boron Calcium Cadmium Chromium Magnesium Nickel Potassium Selenium Sodium Total Organic Carbon Benzene Chloroform 1,2-Dichloroethane Carbon tetrachloride Trichloroethene Dichlorobromomethane Tetrachloroethene Dibromochloromethane Bromoform Total trihalomethanes Fluoranthene Benzo 3,4 Fluoranthene Benzo 11,12 Fluoranthene Benzo 3,4 pyrene Benzo 1,12 perylene Indeno (1,2,3-cd) pyrene Total Poly romatic Hydrocarbons In House method ref ICP1 Using ICP-MS In House method ref ICP2 Using ICP-MS based on SC Method 1979 using Headspace GC/MSD P1 based on EP Method 550.1 using solid phase extraction followed by high pressure liquid chromatography with fluorescence detection ssessment Manager: LH2 Page 4 of 6
Schedule of ccreditation United Kingdom ccreditation Service ccredited to Issue No: 035 Issue date: 04 ugust 2017 WTERS (cont d) Chemical Tests (cont d) Raw (surface and ground) and potable Metaldehyde using on-line SPE followed by LC- MS-MS detection Pesticides: trazine PESTS using on-line SPE zoxystrobin followed by LC- Boscalid MS-MS detection Carbendazim Carbetamide Chlorotoluron Cyproconazole Diflufenican Dimethenamid Diuron Epoxiconazole Flufenacet Flusilazole Flutriafol Isoproturon Metazachlor Methabenzthiazuron Methiocarb Pendimethalin Propachlor Propyzamide Prosulfocarb Simazine Tebuconazole Triallate Herbicides: Clopyralid CIDS using on-line SPE Fluroxypyr followed by LC- 2,4-D MS-MS detection MCP Triclopyr Bromoxynil Mecoprop Quinmerac Picloram ssessment Manager: LH2 Page 5 of 6
Schedule of ccreditation United Kingdom ccreditation Service ccredited to Issue No: 035 Issue date: 04 ugust 2017 WTERS (cont d) Microbiological Tests s based on The Microbiology of Drinking Water unless stated otherwise Raw and potable Colony counts at: 22 C for 3 days 37 C for 1 day 37 C for 2 days Pour plate method as per The Part 7 (2012) Total Coliforms and E. coli Membrane filtration followed by (Enumeration and confirmation) confirmation as per The Part 4 (2009) Clostridium perfringens (Enumeration and confirmation) Enterococci (Enumeration and confirmation) Membrane filtration followed by confirmation as per The Part 6 (2010) Membrane filtration followed by confirmation as per The Part 5 (2012) WTERS, treated and raw Water Treatment Works Service Reservoirs Sampling for the purpose of enforcement of the Water Supply (Water Quality) Regulations 2000 (SI 2000/3184) Methodology meeting the requirements of the Drinking Water Testing Specification Domestic Premises Sampling s for sampling For: Chemical Biological Microbiological analysis B Chemical Tests Total Residual Chlorine Free Residual Chlorine Temperature Measurement s Using a portable photometer (HCH) Using a calibrated thermometer B END ssessment Manager: LH2 Page 6 of 6