Persimmon fined £433k for pollution offences

Persimmon’s failed attempt to prevent water discharge

Persimmon failed to implement appropriate measures to prevent pollution incidents that soiled the River Gavenny in Monmouthshire in 2019.

The company pleaded guilty to breaches of Environmental Permitting Regulations at Newport Magistrates Court earlier today (5th April).

A total of seven pollution offences, caused by illegal water discharge activities, occurred at the Willow Court development site in Abergavenny between 11th February and 11th November 2019.

An additional pollution offence also occurred on 2nd February 2021.

Inspections carried out by Natural Resources Wales (NRW) revealed that the pollutant on each occasion was caused by water run-off from the site, which had been contaminated with silt.

Persimmon Homes was fined £53,000 per offence, as well being ordered to pay NRW costs of  £9,161 and a victim surcharge of £170 bringing the total fines to £433, 331.

Water samples obtained and analysed by NRW officers from the River Gavenny showed significant levels of suspended solids in the watercourse. This can have a negative impact on fish and other invertebrates, clogging their gills and reducing light penetration in the water.

Although there was no evidence of fish kill recorded in the river, the impact of silt would have had a detrimental effect on aquatic life in the water, NRW said.

NRW officers met on site with the management of Persimmon Homes in March 2019 to discuss the necessary preventative measures that needed to be implemented to minimise the risk of pollution. This included jet washing the silt back from the road onto the site and digging a trench across the entrance, in which clean stone and straw bales could be placed to absorb any silt water runoff.

While the trench initially stopped the immediate flow of contaminated water, additional mitigation measures, including digging more ditches, closing the site entrance to traffic, and effectively recording inspections of pollution measures, were not carried out.

A silt netting placed at a discharge point into the river Gavenny, designed to prevent silt from entering the river was also not maintained.

NRW environment officer Anthony Bruten said: “Environmental regulations are in place to help protect people, wildlife, our rivers, and land. The construction industry has a duty of care to the communities in which they operate, to ensure the correct controls and safeguards are in place in order to prevent incidents such as these occurring.

“In this case, Persimmon Homes’ failure to put in place suitable mitigation methods meant that silt run off from the site continued to negatively impact the nearby water courses and the River Gavenny over a period of 10 months.

“I hope this fine will send out a clear message that environmental legislation is to be taken seriously. We will not hesitate to take appropriate action against those who disregard regulations and jeopardise the natural environment we all know and love.”

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