Open AccessDETERMINATION OF CONTAMINATION DISTANCE FOR BOREHOLES IN OKIGWE ZONE, IMO STATE NIGERIA
Author(s) -
Uchendu E.E,
Madubuike C.N,
Okereke C.D,
Okereke N.A.A
Publication year - 2021
Publication title -
international journal of engineering applied science and technology
Language(s) - English
Resource type - Journals
ISSN - 2455-2143
DOI - 10.33564/ijeast.2021.v06i02.004
Subject(s) - contamination , groundwater , borehole , distilled water , groundwater contamination , environmental science , tap water , environmental engineering , hydrology (agriculture) , chemistry , geology , aquifer , geotechnical engineering , chromatography , biology , ecology
Groundwater contaminants inOkigwe zone in Imo state made up of six localgovernment areas were investigated. Four (4)groundwater samples were collected from eachlocal government area. This amounted to twentyfour groundwater samples. These samples werecollected randomly from sites close to septic tanksand to avoid contamination from tanks, thesamples were collected at the well head, beforewater enters into storage tanks. The samples werestored in a sterilized 250 ml bottles and then takento the laboratory for analysis. The chemicalparameters were determined using a HA-CH44600-00 and using standard methods ascontained in Chessbourgh (2014). These sampleswere refrigerated and analyzed within 24 h. Allplastics and glass wares utilized were pre-washedwith detergent water solution, rinsed with tapwater and soaked for 48 h in 50% HNO3 thenrinsed thoroughly with distilled- deionized water.These results were used to ascertain the levels ofgroundwater contamination in Okigwe zone. Anequation was generated from the chemicalparameters using SPSS and E-view softwares toestimate the minimum allowable distance forlocating borehole from sources of contaminationin Okigwe zone in Imo state Nigeria. Theminimum allowable distance calculated forgroundwater from sources of contamination(septic tanks) is 15.81meters.