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Image caption Lime slurry spilled into a surface water drain. The operator of a water treatment plant has been fined £40,000 after a chemical spillage killed more than 500 fish. It happened at Welsh Water's Felindre water treatment works just outside Swansea in July last year. The pollution happened after lime slurry which was being transferred spilled into a surface water drain which led to the River Lliw. Welsh Water admitted causing the pollution at a previous hearing in Swansea Magistrates' Court. An inspection of the river by Natural Resources Wales (NRW) found dead fish including trout, lamprey, bullheads, as well as 200 freshwater shrimps, mayflies and caddis flies. About three quarters of a mile (1.2 km) of the river was affected. Full story

20 August