WATER SUPPLY (SAFETY AND RELIABILITY) ACT 2008 - SCHEDULE 1
WATER SUPPLY (SAFETY AND RELIABILITY) ACT 2008 - SCHEDULE 1
SCHEDULE 1 – Prohibited substances
1 A solid or viscous substance in a quantity, or of a size, that can obstruct sewerage, or interfere with the operation of sewerage.Examples of solids or viscous substances that are prohibited substances if of a size or in the quantity mentioned in item 1—• ash, cinders, sand, mud, straw and shavings• metal, glass and plastics• paper and plastic dishes, cups and milk containers whether whole or ground by garbage grinders• rags, feathers, tar and wood• whole blood, paunch manure, hair and entrails• oil and grease• cement laden waste water, including, wash down from exposed aggregate concrete surfaces
2 A flammable or explosive solid, liquid or gaseous substance, including petrol.
3 Floodwater, rainwater, roof water, stormwater, subsoil water and surface water.
4 A substance that, given its quantity, is capable alone, or by interaction with another substance discharged into sewerage, of—(a) inhibiting or interfering with a sewage treatment process; or(b) causing damage or a hazard to sewerage; or(c) causing a hazard for humans or animals; or(d) creating a public nuisance; or(e) creating a hazard in waters into which it is discharged; or(f) contaminating the environment in places where effluent or sludge from a sewage treatment plant is discharged or reused.Example of substance under item 4—a substance with a pH lower than 6.0 or greater than 10.0, or having another corrosive property
5 A substance at a temperature of more than—(a) if the local government has approved a maximum temperature for the substance—the approved maximum temperature; or(b) if paragraph (a) does not apply—38ºC.