DAERA/26-232 - Water quality and landfill monitoring. Date published: 24 April 2026 Water quality and landfill monitoring. Documents DAERA/26-232 - Response LetterAdobe PDF (236.27 KB)DAERA/26-232 - Annex A (1) - Determinand KeyComma-separated values (9.77 KB)DAERA/26-232 - Annex A (2) - Chemistry Data 2019 - 2024Comma-separated values (342.44 KB)DAERA/26-232 - Annex A (3) - Foyle Pollutants - MarineComma-separated values (11.86 MB)DAERA/26-232 - Annex B - Released InformationAdobe PDF (13.77 MB) Help viewing documents