It is a measurement which tells us how acidic or alkaline the discharge is. pH: The normal range of pH allowed is 6 to 11.Ammonia: Ammonia can cause unsafe sewer atmospheres and can also causes toxicity issues within a watercourse as ammonia is highly toxic to aquatic animals.Oil and grease can also build up in our equipment and cause operational issues. Oil and Grease: Oil and grease can build up within the sewer which can lead to blockages, odour problems and subsequent flooding.Suspended Solids: Suspended solids can cause siltation and blockages in the sewerage system.The volume and flow rate can be limited and assessed on an individual basis. Volume/flow rate: This is limited by the maximum daily amount (m3/24hr) and litres/second of trade effluent you’ll be able to discharge.Legal action will be considered in all cases, particularly where a serious, severe, persistent and or blatant breach of the relevant legislation has taken place.Ĭonditions are determined on an individual basis, but limits we usually consent for include: Breaches of any consent condition constitutes a criminal offence under the above Act and may lead to legal action being taken against the discharger. The consent will contain conditions and limits to the discharge. It’s an offence to discharge trade effluent without a consent. A trade effluent consent is a legal document issued under the provisions of the Water Industry Act 1991. If you want to discharge Trade Effluent into a public sewer, you’ll need permission from us before you can do so - this is granted with a consent. Protect our valuable sewer network and assets.Preserve our environment and maintain drinking water quality. Protect the health and safety of the public and our workers.Trade effluent is highly variable in volume and strength, and controlling it helps us to: Why do we need to control trade effluent?Īs part of the Water Industry Act 1991 we have a legal obligation to control trade effluent. Trade effluent is any liquid waste that’s discharged into our sewers from a business, industrial or trade process, excluding domestic sewage and surface water.
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