10 1 Aberdyfi sample assessment for 1993-W31 Rhyl sample assessment for 2000-W37 Rhyl sample assessment for 1992-W39 Llangrannog sample assessment for 2001-W31 Llangrannog sample assessment for 2001-W35 Abersoch sample assessment for 1990-W34 Abersoch sample assessment for 1993-W33 Barafundle sample assessment for 2002-W37 Aberystwyth North sample assessment for 1998-W20 Pendine sample assessment for 2008-W23 0