Questions are being asked about whether a Bath magistrate should continue to sit after admitting responsibility for a pollution incident which resulted in around £16,000 worth of rainbow trout being killed.
Richard Curry's farming partnership was fined £400 and ordered to pay £4,800 in costs by a court in Swindon.
Mr Curry, of Court Farm, Compton Martin, had appeared before magistrates in Chippenham as a partner in the farming business EF and PAM Curry in March this year where he pleaded not guilty to four charges relating to an incident on January 10.
It was alleged that slurry from an overtopped slurry store at the farm ended up in the tributary of the Congresbury Yeo, which leads to Blagdon Lake reservoir.
When he appeared in court in June he pleaded guilty to polluting the water by discharging poisonous, noxious or polluting matter.
Allegations of failing to keep records, failing to provide sufficient storage and failing to comply with silage, slurry and agricultural fuel oil regulations were denied and the Environment Agency offered no evidence on these charges so the cases were dismissed.
A spokesman for the judiciary said they would now be looking into whether Mr Curry could continue to serve as a magistrate.
He said: "Following the conclusion of court proceedings relating to environmental offences, the Avon, Somerset and Gloucester Advisory Committee is considering whether it needs to investigate Mr Richard Curry's conduct.
"Mr Curry has not sat as a magistrate since October 2012."
A spokesman for the Environment Agency said: "If we come across any defective or undersized slurry stores, in relation to regulations, we will deal with this ourselves in accordance with the severity of the risk this poses the environment.
"Our action maybe just to advise and agree on improvements, but in more severe cases we will take more formal action which could equate to prosecution."
