KW IV PH DD PA FK KY G KA ML EH DG NE CA LA BD FY IM BT PR L WN BL OL HX WF HU DN HD M WA S SK CW CH LL SY SA CF NP TF ST DE NG LN LD HR WV WS LE PE NR IP CB NN CV B WR CO SG MK OX LU HP AL BS SN RG SL ME CT TN RH GU BA SP SO PO BN EX TA DT WD EN HA UB IG RM DA BR CR KT TW NW N E SE SW SM W WC EC BH TQ PL TR GL CM SS Greater London DY BB LS YO NG DH SR DL TS TD AB Soft to moderately soft 0 - 100 ppm* as calcium carbonate * parts per million Medium to moderately hard 100 - 200 ppm* as calcium carbonate Hard to very hard Above 200 ppm* as calcium carbonate SCOTLAND AB Aberdeen S DD Dundee S DG Dumfries & Galloway S EH Edinburgh S FK Falkirk & Stirling S G Glasgow S TD Galashiels S KA Kilmarnock S KW Kirkwall S KY Kirkcaldy S ML Motherwell S PA Paisley S PH Perth S IV Inverness S NORTHERN IRELAND BT S NORTH WEST BB Blackburn S BD Bradford S BL Bolton S CA Carlisle H /S CH Chester S / H CW Crewe S FY Blackpool S HD Huddersfield S HX Halifax S L Liverpool S LA Lancaster S M Manchester S OL Oldham S PR Preston S SK Stockport S WA Warrington S WN Wigan S NORTH EAST DH Durham S DL Darlington S HG Harrogate S HU Hull H LS Leeds H /S NE Newcastle upon Tyne H SR Sunderland H TS Cleveland [Teesside] S WF Wakefield H YO York H WALES CF Cardiff S LD Llandrindod Wells M LL Llandudno M NP Newport M SA Swansea S SY Shrewsbury M WEST MIDLANDS B Birmingham S / M / H CV Coventry H DY Dudley M HR Hereford M NN Northampton H ST Stoke-on-Trent H TF Telford H WR Worcester M WS Walsall M WV Wolverhampton H EAST MIDLANDS CB Cambridge H CO Colchester H DE Derby H /S DN Doncaster H IP Ipswich H LE Leicester H LN Lincoln H NG Nottingham H NR Norwich H PE Peterborough H S Sheffield H SOUTH WEST BA Bath H BH Bournemouth H BS Bristol H DT Dorchester H EX Exeter S GL Gloucester M PL Plymouth S SN Swindon H SP Salisbury H TA Taunton M TQ Torquay S TR Truro S SOUTH EAST AL St Albans H BN Brighton H CM Chelmsford H CT Canterbury H GU Guildford H HP Hemel Hempstead H LU Luton H ME Medway / Rochester H MK Milton Keynes H OX Oxford H PO Portsmouth H RG Reading H RH Redhill M SG Stevenage H SL Slough H SO Southampton H SS Southend-on-Sea H TN Tonbridge H GREATER LONDON BR Bromley H CR Croydon H DA Dartford H E London E H EC London EC H EN Enfield H HA Harrow H IG Ilford H KT Kingston upon Thames H N London N H NW London NW H RM Romford H SE London SE H SM Sutton H SW London SW H TW Twickenham H UB Southall Uxbridge H W London W H WC London WC H WD Watford H