Because the water became polluted by residues from the flooded land, the reservoir did not fulfil its intended purpose, and its role as a feeder ceased in 1851.
bɪkˈʌz ðə wˈɔːɾɚ bɪkˌeɪm pəlˈuːɾᵻd baɪ ɹˈɛsɪdˌuːz fɹʌmðə flˈʌdᵻd lˈænd, ðə ɹˈɛzɚvwˌɑːɹ dɪdnˌɑːt fʊlfˈɪl ɪts ɪntˈɛndᵻd pˈɜːpəs, ænd ɪts ɹˈoʊl æz ɐ fˈiːdɚ sˈiːst ɪn wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd fˈɪfti wˈʌn.