Whakaotihia te rerenga e whai ake nei: I te tekau tau 1850 ka noho te kounga o te wai inu hei take e āwangawanga ana te iwi, ā, i tirotirohia e John Snow te āhua o ngā wai i te tau 1849. I whakaaetia e te Pāremata te Ture Wai Metropolis 1852 ki te "whakarite i te whakarato ki te Metropolis o te wai ma me te hauora". I raro i te Ture, he ture mo tetahi kamupene wai ki te tango wai mo te whakamahinga o te whare mai i nga waahi o te awa o Thames i muri i te 31 o Akuhata 1855, a mai i te 31 o Tihema 1855 ko nga wai katoa e hiahiatia ana kia "tirohia". I whakatauhia e nga kaiwhakahaere i te tau 1847 ki te neke i te urunga mo o raatau putunga ki Seething Wells. I oti nga whare i te tau 1852, a, i honoa te Lambeth ki reira ma te whakamahi i ona paipa ki te taone na te Kamupene Waterworks a Chelsea. I whai wāhi ngā whare ki ngā rangahau tatauranga a John Snow i te wā o tētahi
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