Environmental Quality (Sewage and Industrial Effluents) Regulations, 1979.

These Regulations apply to effluent discharges into any inland waters other than the effluents discharged from prescribed or other premises specified in the First Schedule.
The Regulations are divided into 7 Parts: Preliminary (I); New Sources of Discharge (II); Acceptable Conditions of Discharge into Inland Waters (III); Discharge of Effluent and Sludge onto Land (IV); Licence for Contravention of Acceptable Conditions (V); Miscellaneous (VI); Fees (VII).
The Regulations are followed by seven Schedules: List of Discharges to Which These Regulations Do Not Apply (1); Standard Methods of Analysis of Effluent (2); Parameter Limits of Effluent of Standards A and B (3); List of Catchment Areas Where Standard A Applies (4); List of Parameters the Limits of Which to be Specified (5); Parameter Limits of Effluent Other Than of Standard A or B (6); Method of Computing Effluent-Related Licence Fee (7).
Any work that may result in a new source of effluent discharge or alter an existing source must be authorized by the Director-General according to the provisions of Part II. Part III prohibits the discharge into inland waters of effluent containing certain substances (e.g., inflammable solvents, garbage, timber, human or animal waste, etc.) and establishes the methods to be employed for the chemical analysis of effluents. Similar provisions regard the discharge of effluents and sludge onto land.