Why do the charges vary from customer to customer?
Trade waste customers are divided into one of the following categories, based on their volume and waste quality;
Category A customers are those discharging less than 1000 litres of trade waste per day.
They are also considered Risk 1 customers.
These customers pay the minimum management charge and will not be charged for volume or quality of their waste. The majority of Western Water customers fall in this category and typical customers include take-away food shops, bakeries, fast-food shops etc.
Category B customers are those discharging 1,000 litres to 10,000 litres of trade waste per day with less than 400 milligrams of organic content or solids per litre.
Due to the volume of discharge, customers in this category are considered Risk 2 customers. Category B customers will be charged a management charge and volumetric charge. Typical Category B customers include swimming pools, hospitals, car washes etc.
Category C customers are those discharging 1,000 litres to 10,000 litres of trade waste per day with more then 400 milligrams of organic content or solids per litre.
Due to the volume of discharge, they are considered Risk 2 customers.
Category C customers will be charged a management charge, a volumetric charge and a quality charge. Typical Category C customers include aged care facilities, large restaurants etc.
Category B customers will pay a higher unit charge for volume than Category C customers. This principle was adopted to provide Category B customers incentive to reuse relatively clean water within the business.
A summary of the charges for small to medium industries/commercial premises is shown below.