As part of the PestSmart project, Welsh Water are offering a free and confidential disposal scheme for farmers, growers, gamekeepers, foresters and land managers to safely dispose of any unwanted, out of date or unlicensed pesticides and herbicides which are difficult or expensive to dispose of.
By providing this disposal scheme across Wales and in Dŵr Cymru Welsh Water’s Drinking water catchment areas in England, they are working with land managers to safeguard raw water quality before it reaches their water treatment works
https://www.dwrcymru.com/en/WaterSource/PestSmart/2019-Pesticide-Disposal-Scheme.aspx