This Decree prescribes standards for the quality of various kinds of surface waters. Article 1 and Schedule I concern standards for drinking water. Article 2 and Schedule II concern standards for swimming waters. Article 3 and Schedule III concern standards for water for the breeding of salmonids and other freshwater fish. Article 4 and Schedule IV concern standards for water for the breeding of crustaceans. Article 5 and Schedule V concern methods of measurement.