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Waterborne sicknesses are overall achieved by enteric pathogens having a spot with the social event of animals that are mainly transmitted by the fecal-oral route. In other words, they are mainly released in fertilizer by spoiled individuals and ingested by others as water or faecally corrupted food. Some pathogens may of animal start. Water can in like manner expect a section in the transmission of microorganisms that are not released by feces. This study was finished on 60 wells in the Gharb region all together toknow the idea of the water table; models were assembled in three metropolitan networks: Sidi Kacem, Macheraa Belksiri and Sidi Alal Tazi were separated for defilement marker natural substances (squander coli forms and faecalstreptococci, as well as an aerobicspores-sulphite-decreasing subject matter experts. count of the tiny living beings was done by the filtration technique and by incorporation in super cooled solid medium. The results showed that well water was substandard by virtue of the presence of waste coli form pollution indicators, faecalstreptococci. In contrast, pathogenicgerms, however, the groupings of microbial markers monitored differ as shown by the area of wells stood out from different sources of contamination. Pollution of these wells has generally been linked to non-compliance with hygienic draw down conditions. The bacteriological idea of the waters of these wells can be improved by adequate protection. Keywords: Bacteriological quality, well water, food industry, gharb slick. References 1. DzedaB.,Kaiser M.,MachS.- Bacteriaand groundwater.Soil andGroundwaterPollution,1998. CivilEngineering Dept.,VirginiaTech.http://www.cee.vt.edu/programareas/environmental/teach /gwprimer/bacteria.html. 2. VanelsasJD,HeijnenEC.- Methodsfortheintroductionofbacteriainto soil.Biol.Fertil.Soils,1990.10,127-133. 3. Fenchel T.-Microorganisms (microbes), roleof.Encyclical.Biodiversity,2001.4,207-219. 4. Haack, S. K and Bekins , BA .Microbial populations in contaminantfeathers. Hydrogeologyjournal, 2000,V( 8), No.1, P.63-67. 5. Hendry, M. (2006) . Extremophiles:there'smore tolife.Environmental Chemistry,3,75-76. 6. Belghiti.Chahlaoui.A,Bengoumi.DandELMoustaineR.(2013a) Effect of climatic and anthropic conditions on the variation of thewater quality of certain wells in rural environment, case of the watertableoftheplateauofMeknes(Morocco). ScienceLib EditionsMersenne:5(131004)ISSN2111-4706. 7. Belghiti. Chahlaoui.A,Bengoumi. DandELMoustaine R.(2013b). Studyofphysicoquality . chemicalandbacteriologicalgroundwater of the plio- quaternary aquifer in the region of Meknes(Morocco). Larhyss Journal, ISSN1112-3680,No.14,June2013,pp.21-36. 8. Sadek Sanae, Benel Harkati Fatima, Zhor Fathallah, Dakir Zahra, andBelghytiDriss.EvaluationoftheTotalColiformsAntibioticResistance Degree of Hospital Wastewater.World Journal of BiologyandMedicalSciences.Volume3,Issue-2,45-50,ApriltoJune,2016 9. Poole NJ and Hobson PN (1979).- Water pollutionandits prevention.Microbial .Ecology.226-245.