This study was conducted to investigate the effects of municipal solid waste (MSW) used as land lling on the ground water quality and health effects on the community. The study was carried out in Mardan, Khyber Pakhtunkhwa province-Pakistan. To assess the impacts, 13 ground water samples were collected from Solid Waste Dumping Sites (SWDS) and 13 from Safe Sites (SS). Ground water was analyzed for pH, Turbidity, Electrical Conductivity (EC), Total Hardness (TH), Cl − , Ca + 2 , K + 1 , NO − 2 , NO − 3 , SO 4 − 2 ; heavy metals such as Pb, Cr, Mn, Cu, Ni, Zn, Cd, Fe; biological parameter such as Total Coliform. Waste sample collected from SWDS showed that food and garden waste were present highest percentage by weight (30.5%) followed by nes (17.3%). The two groups (SWDS and SS) differ signi cantly for the parameters like EC, TH, COD, Na, Ca, NO 3 − and SO 4 − 2 Ni and TC. Samples collected from SWDS (84%) were found contaminated with TC ranged 2-22. It was analyzed that pH, EC, TDS, COD, TH, NO 3 − , SO 4 − 2 , NO 2 − , Ca + 2 , Na + , TC, Cr, Ni, Zn, Cd and TC were more in the sample collected from 70-130 feet than 140-200 feet. TC found in 70-80 feet depth was signi cantly different from rest of the groups. Similarly, signi cant difference regarding different parameters for various depths was found for K + 1 , Ca + 2 , NO 2 − , Pb, Cu and Fe. The results of the questionnaire survey revealed negative correlation between the diseases and distance from the land lling sites and signi cant correlation was observed for typhoid, cholera skin allergies and gastro enteritis. The study con rmed that using MSW as a ll material has contaminated the ground water quality and leveling of land through MSW is not safe. Deep drilling is recommended for extraction of ground water in the contaminated area to minimize the associated health risks.