Severn Trent Water pleaded guilty to three charges of causing a water discharge before Hereford magistrates on the 15 November.
The charges were brought by the Environment Agency under sections 12(1)(b) and 38(1)(a) of the Environmental Permitting (England and Wales) Regulations 2010. It was fined £18,000 with costs of £5,017.
The court heard the river Leadon, a high-quality salmon and trout river, was polluted three times in August 2011. The agency responded to calls from the public reporting dead fish in the river over the weekend of 6-7 August. The incident was due to discharges of raw sewage from Severn Trent’s Ledbury sewage treatment works.