Threshold values should be established for all pollutants that characterise groundwater bodies at risk of not achieving the good chemical status objective and this should be done at the most appropriate level, e.g. national, river basin district or groundwater
Ba cheart luachanna tairsí a shocrú do gach truailleán a thréithríonn coirp screamhuisce a bhfuil baol ann nach mbainfidh siad amach an chuspóir do dhea-stádas ceimiceach agus ba cheart é sin a dhéanamh ag an leibhéal is cuí, m.sh. leibhéal náisiúnta, ceantair abhantraí nó coirp screamhuisce.