Sewage pollution has cost Yorkshire Water more than £9,000 in fines and costs.
The company appeared before Scarborough magistrates on 6 May to plead guilty to failing to comply with its environmental permit. For breaching regulations 12(1)(b) and 38(1)(a) of the Environmental Permitting (England and Wales) Regulations 2010 it was fined £7,500. Costs were £1,581.
The incident on 26 April 2010 polluted Runswick beck, which runs into a North Yorkshire bathing beach.