MP FOR Monmouth David Davies has been accused of "letting down" his constituents after voting against preventing water companies from dumping sewage into rivers

Mr Davies was one of 265 Conservative MPs who voted against an amendment to a bill, which campaigners claim effectively allows private firms to dump sewage in rivers.

There have now also been calls from Welsh Conservatives for the Welsh Government to follow suit.

The Conservatives said that the new measures stopped short of an outright ban on waste going into rivers because the sewage network is "Victorian".

They said that, had MPs supported an outright ban, there was "a real danger that at times of extraordinary pressure, raw sewage could end up flooding back into people’s homes".

However, water quality campaigner and wild swimmer Angela Jones has been quick to condemn Mr Davies' decision to toe the party line on the issue.

Posting on social media, she said: "You let us down.

"This is not about political point scoring. It's bigger and more important."

Ms Jones recently met with Mr Davies for a wild swim in the River Wye where the pair discussed the need to improve water quality in Welsh rivers.

However, Ms Jones has since branded the MPs voting stance a "disgrace".

She believes that, contrary to the Conservative explanation of attempting to safeguard homes from a potential back-up of sewage, the amendment was rejected out of greed.

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"We know the real reason is the greed of Government and the greed of water companies," she said.

"What we are looking at is the result of a massive under-investment in infrastructure for the last 30 years."

This is not the first time Mr Davies has found himself in hot water over this issue.

He sparked controversy on Twitter after criticising Labour activist Catrin Maby for the way she addressed him.

He said activists like Ms Maby are "more interested in spreading hatred on twitter than looking at the arguments" and that she should be ashamed of herself.

Touching on this spat, Ms Jones said: "I’m far from an aggressive activist as you’ve labelled so many, but one of the majority who truly cares for the environment."