• Sabrina Lalhmangaihzuali
• Prof.H Lalramnghinglova
• Prof. B P Mishra

Coliform bacteria have been used to evaluate the general quality of water. Analysis of coliforms in perennial spring water from five areas in Aizawl city (viz., North zone –Bawngkawn Tuikhur, Central zone - Zotui, Electric Veng, East zone –Theihai Tuikhurarmed veng , South zone – SailoTui, Mission Veng, West zone – Vantlang Tuikhur, Govt. Complex) was done to assess the quality of the spring water throughout the year and possible risks from consumption by people living in the nearby locality. Coliform bacteria originate as organisms in soil or vegetation and in the intestinal tract of warm – blooded animals. Bacteria reproduce rapidly if conditions are right for growth. MPN method was used to determine the most probable number of bacteria from the various sites selected in and around Aizawl city. The water samples are incubated separately in a media at a different temperatures and is left for over a night at different temperatures. In north zone maximum MPN of total coliform was found in the month may whereas the minimum was found in the month of December. In central zone maximum MPN was found in the month of October and minimum was found in May. In east zone maximum was found in jan and minimum in November and april. In south zone maximum was found in June whereas minimum was found in February. In west zone maximum was found in july and minimum was found in month of april. Faecal coliform was absent in most of the months accept in May, September and October in all sites.

Total coliform, faecal coliform, perennial spring water, Aizawl City. 

"Assessment of total and faecal coliform in perennial spring water in Aizawl city,Mizoram", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.677-681, June 2019, Available :http://www.jetir.org/papers/JETIR1906T85.pdf

"Assessment of total and faecal coliform in perennial spring water in Aizawl city,Mizoram", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp677-681, June 2019, Available at : http://www.jetir.org/papers/JETIR1906T85.pdf