介绍性文本1.引用、开始和解释2.对主要法规的修订3.对2006年《供水（水质）规例》（北爱尔兰）附表3表2签署2006年《供水（水质）规例》（北爱尔兰）附表3表2供水（水质）附表3表2质量）法规（北爱尔兰）2007解释性说明

Introductory Text1.Citation, commencement and interpretation2.Amendments to the principal Regulations3.Amendments to the Water and Sewerage Services (Northern Ireland) Order 2006SignatureSCHEDULE 1Table 2 in Schedule 3 of the Water Supply (Water Quality) Regulations (Northern Ireland) 2007SCHEDULE 2Table 3 in Schedule 3 of the Water Supply (Water Quality) Regulations (Northern Ireland) 2007Explanatory Note