The purpose of this study was to identify social, economic and environmental factors external to Lusaka Water Supply and Sanitation Company (LWSC) that contribute to intermittent water supply. The study adopted a mixed research approach and employed a case study research design. The study was carried out in Lima, Kapwepwe and Mwembeshi wards of George compound in Peri urban West of Lusaka. The purposive sample size and population for this study was 267 with a response of 205 participants who consisted of the affected 185 households and 20 Key informants. The collection of data deployed semi-structured questionnaire for the households and interview guide for the key informants, collected data was transcribed and analysed manually using a thematic research approach for qualitative data while quantitative data was, STATA Version 14. A test of association between external factors and intermittent supply was done using chi-square to establish the social, economic and environmental factors that affect intermittent supply of water.