Non-return of water to the sewer
There can be a difference between the amount of water customers use and the amount of effluent they discharge into the sewer system. Our wastewater abatement allowance takes these differences into consideration for customers who can prove that over ten per cent of their metered water usage is not returned to the sewer for treatment.
Our pricing structure for wastewater services already recognises that up to ten per cent of water used may not be returned to the mains sewer.
Customers who meet the criteria described below can apply for this additional allowance.
Apply online for wastewater abatement allowance
If your water usage is complex, you may prefer to complete a more detailed claim by printing off a copy of the form:
Wastewater abatement claim form for commercial customers (81.2Kb)
Wastewater abatement claim form for domestic customers(95.3Kb)
Please note:
To qualify for wastewater abatement allowance you should:
- have a metered water supply
- be able to demonstrate that more than ten per cent of water supplied to the property is not returned as wastewater to a public sewer
- have a minimum meter read history of 12 months
- be a named customer on the account
Please calculate the monetary value of any non-return of water. This leaflet explains how.
We aim to annually review all wastewater abatements.
Non-return calculations do not include water lost through leakage.
Commercial allowances
Commercial allowances cover:
- Manufacturing use
Where water is part of the product, such as soft drinks - Process use
For significant evaporation loss - Irrigation
For regular watering of sports fields or garden centres - Discharge to a private outfall
Where wastewater is not conveyed to a public sewer but to a watercourse, soakaway or similar
More detailed information is covered in our commercial claim form:
Domestic allowances
Domestic allowances cover:
- Irrigation
Where there is regular and substantial watering of a large garden - Use of swimming pools / ponds
When water is lost through evaporation - Discharge to a private outfall
Where water runs to a private outfall such as a watercourse, soakaway (or similar) but there is still a connection to a public sewer
More detailed information is covered in our domestic claim form:
Wastewater abatement claim form for domestic customers(95.3Kb)
