Environmental Standards for Lake Water Quality Environmental Standards for Lake Water Quality Notes on the whole SR Textual amendments F1 Regulations revoked (23.10.2015) by The Water Framework Directive (Classification, Priority Substances and Shellfish Waters) Regulations (Northern Ireland) 2015 (S.R. 2015/351), reg. 27 Notes on Schedule 1 Textual amendments F1 Regulations revoked (23.10.2015) by The Water Framework Directive (Classification, Priority Substances and Shellfish Waters) Regulations (Northern Ireland) 2015 (S.R. 2015/351), reg. 27 Notes on Part 2 Textual amendments F1 Regulations revoked (23.10.2015) by The Water Framework Directive (Classification, Priority Substances and Shellfish Waters) Regulations (Northern Ireland) 2015 (S.R. 2015/351), reg. 27 Environmental Standards for Lake Water Quality