Ministerial Decree No. 40/88 of the Ministry of Environment and Water Resources. Country/Territory Oman Document type Regulation Date 1988 Source FAO, FAOLEX Subject Water Keyword Classification/declassification Groundwater Saltwater intrusion/siltation Water conservation zone Well sinking/boreholes Zoning Freshwater pollution Pollution control Geographical area Asia, Indian Ocean, Middle East, Near East and North Africa, Western Asia Entry into force notes This Ministerial Decree enters into force on the date of its publication in the Official Gazette. Abstract This Decree establishes well-field protection zones in Wadi Uday, as shown in the attached Annex. Full text Arabic