Thames Water has warned it will run out of money by the end of next May and could go bankrupt.

Britain’s biggest water firm, which is under a debt pile of more than £15bn, said on Tuesday that it had £1.8bn of cash reserves at the end of June, a fall from £2.4bn three months previously.

The firm said it is still looking for new funds needed to maintain and update its infrastructure, after investors pulled the plug on £500m of emergency cash earlier this year.

Chief executive Chris Weston said Thames Water had taken “informal soundings which have shown there is interest in the market”.

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Thames Water are experiencing financial problems.Thames Water is experiencing financial problems.

He added that the company will be looking at a “broad church” of potential investors which could include existing shareholders.

If it ultimately fails to attract fresh funding, Thames Water’s fraying finances could present Sir Keir Starmer’s newly elected Labour Government with a significant industrial crisis.

A blueprint codenamed Project Timber was being drawn up in Whitehall in the spring, according to reports, which could see the company effectively nationalised.

Under the plans, the company would be placed in a form of special administration in the scenario that its parent company fails.

Mr Weston added it is “not in the interests” of customers or investors for the company to fall into Government hands.

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Communities minister Jim McMahon said on Tuesday morning: “We recognise that, over the last 14 years, frankly, the water industry hasn’t been regulated anywhere near as firmly as it should have been, and we haven’t seen the investment to deal with the sewage scandal.

“The days of putting shareholder interest above the national interest, frankly, can’t carry on and so we do need to look at that and Thames do need to look at their own house and get it in order.”

Mr McMahon said there is “no programme of nationalisation for the water industry” when asked what the plan is if the company collapses.

He did however say there is “no provision in law for a water company to stop providing water”, adding: “We need to be very clear there is always a contingency in place.”

Thames Water’s financial update will be followed on Thursday by a draft verdict from Ofwat on water companies’ five-year spending plans and bill increases to 2030.

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Thames Water are running out of money.Thames Water are running out of money. (Image: NA)

That will kick off six months of negotiations with Ofwat, ahead of its final decision in December.

Thames Water, which has 16m customers in London and the Thames Valley region, put forward plans in April that would see spending rise to £19.8bn to update its infrastructure and reduce sewage spills.

However, that would also involve increasing customer bills by 44 per cent, a figure which has prompted backlash from consumer groups

Meanwhile, the process of securing new cash is “not expected to conclude” until after Ofwat’s final decision on Thames’ business plan in December.

Any increase in bills would be greeted with anger, after Thames Water and other water companies’ disastrous recent environmental records sparked a nationwide scandal over pollution.

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Thames Water said pollution incidents increased to 350, up on 331 last year, which it blamed on a rainier-than-expected year.

The number of “serious pollutions” decreased by 18 per cent, Thames Water said.

When questioned on the issue on Tuesday, Mr Weston said: “You might not like the answer, but rain has a big impact on spills.”

It comes amid reports that Sir Keir has been briefed that the poor state of Thames Water’s physical infrastructure presents a “critical risk” to the country.

Fears about the company include its management of sites that provide drinking water and sewage treatment for London and the Thames Valley, The Guardian newspaper reported.

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The company are in debt.The company are in debt. (Image: PA Media)

Thames Water said it spent £2bn on maintaining and updating its infrastructure last year.

The Prime Minister’s official spokesman told reporters on Monday: “The Government has said in its manifesto that we will put failing water companies into special measures and they will have no choice but to clean up their act.

“We talked about giving regulators the power to block payment of bonuses to executives who pollute our waterways and impose automatic and severe fines on them for wrongdoing.”

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