Twickenham Lib Dem MP, Munira Wilson, who also represents Teddington residents within her constituency, has tabled a written question to the UK Governments' Department for Environment seeking clarity on their stance regarding Thames Water's proposals to take millions of litres of water from the Thames and replace it with treated sewage.

Nub News revealed the proposals last week which would see up to 150 million litres of water a day abstracted from the Thames near Teddington, which would be transferred by pipeline and tunnel beneath the capital to east London.

The water removed from the Thames would be replaced by highly treated effluent from Mogden Sewage Works via a new 15km pipeline.

The water company claims the scheme is the cheapest and fastest way to boost water resources and combat the effects of future droughts.

However, documents released along with the proposals suggest there is a risk to river life and plants by changing the temperature, chemical make-up and salinity of the Thames.

Addressing her followers on Twitter this morning, Miss Wilson wrote: "I've tabled a Written Question to @DefraGovUK on Thames Water's proposals to top up the river at Teddington with treated wastewater. Approval of this scheme lies with the Government. It is vital potential impacts on biodiversity and water quality are taken into account."

The Twickenham MP's tabled question to Defra UK - the government's department for environment - stated: "To ask the Secretary of State for Environment, Food and Rural Affairs, what assessment his Department has made of the implication for his policies of Thames Water's proposal to convey millions of litres of treated wastewater into the River Thames at Teddington Weir, including (a) potential health implications, (b) impact of biodiversity and (c) safeguards to protect water quality."

Hundreds of people turned out to challenge the plans put forward by Thames Water on Monday at Richmond's Town Hall, with the privatised company claiming the Teddington and Mogden scheme is the quickest and cheapest way to combat the effect of droughts and ensure there is enough tap water in the future.

The main proposals affecting south west London involve:

* Thames Water will set up a new abstraction point between Teddington Weir and Hampton Court to take between 50 megalitres per day and 150 megalitres per day out of the river Thames. It is not clear what this would look like.

* This water will be transferred through a new pipeline to an existing tunnel that runs beneath London and then on to reservoirs in the Lee Valley to supply homes and businesses in the east of London and beyond.

* The water taken out of the river will be replaced by treated effluent which will pumped into the Thames further down the river towards Teddington Weir.

* This water will come from the Mogden Water Treatment Works in Isleworth, which is set to undergo a multi-million pound redevelopment and expansion.

* Getting the treated sewer water from Mogden to the Thames near the weir will involve building a new 15km pipeline.

The company has said it is currently carrying out a 'high level' consultation at the moment before coming up with more detailed proposals.

Visit the link HERE for further details on Thames Water's proposals.