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Sewerage & Wastewater
~ Pūnaha parakaingaki me te wai para

sewer pipe

Trade waste definitions

The words in bold below have specific meanings. Each word is defined to help you understand the information presented in the trade waste pages.

Approval means a prior written approval given in accordance with clause 1.5 of the Consolidated Bylaw and 7.8 of Chapter 7 of the bylaw.
Bylaw means the Hastings District Council Consolidated Bylaw.
Characteristics refers to flow rate, volume per day, solids, oil and grease, metals etc.
Controlled Wastewater means a discharge containing any characteristic that exceeds the limit set in Schedule B of Chapter 7 of the bylaw.
Floatable oil and grease (commonly referred to as fat) is any oil and grease that separates out of the wastewater and floats to the top when it cools.
Permitted Discharge means any discharge that has characteristics that are equal to or lower than the limits in Schedule B of Chapter 7 of the bylaw.
Pre-treatment is equipment and/or chemicals used to modify the characteristics of wastewater to make it acceptable for discharge.  This includes screens, grease traps, grease removal systems, settling tanks, oil and grit interceptors and a variety of other equipment.
Schedule B means the schedule in the bylaw (Schedule B of Chapter 7) that sets limits on any characteristic. Those limits determine whether a discharge is Controlled Wastewater or Permitted discharge.
Separated Industrial Network means the sewer network used exclusively for Trade Waste that contains no Sewage.  This network is not available in all areas. 
Sewage means human waste and includes septage and swimming pool and spa pool water.
Total oil and grease (commonly referred to as fat) is all oil and grease present in the wastewater whether it is floating or emulsified by a process, cleaning chemicals or additives.
Trade Waste means any wastewater generated from activities which are not primarily residential in nature (but may also include Sewage).
Trade Waste charges means the charges set annually by Council and published in the Annual Plan.  The charge for each individual business is calculated based on the characteristics of the discharge.  In most cases the charges for ‘Permitted’ discharges are already covered in the rates paid by the business.
Trade Waste Officer is the person responsible for processing applications for approvals, issuing and monitoring approvals and investigating problems resulting from discharges that do not comply with the bylaw.  The Trade Waste Officer also helps businesses work through the application process or with general enquiries relating to trade waste issues. 
Wastewater Network means the system of pipes, pumps, drains, treatment works and channels owned or used by Council for conveying, treating and disposal of wastewater.

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