Municipal Solid Waste Disposal Site Research Articles

Geophysical characterization of a leachate plume from a former municipal solid waste disposal site: A case study on Norman landfill

Geophysical characterization of a leachate plume from a former municipal solid waste disposal site: A case study on Norman landfill

Numerical modeling and simulation of leachate transport in MSW contaminated soil: Impact on seasonal changes

A municipal solid waste (MSW) disposal site with an area of 200 m2 and a depth of 0.3, 0.6 and 0.9 m is studied to assess and control the environmental impacts of leachate discharge on the inner layers of soil. The numerical model was developed under rainy and dry seasonal conditions. The soil properties and leachate concentration data were used for the finite element modelling considering time steps and diffusion coefficient. The effect of seasonal variations in leachate transport is dependent on soil properties such as hydraulic conductivity, moisture content and porosity. Results obtained from numerical computations were compared with the experimental values. However, the comparison demonstrates a good agreement between experimental and numerical calculations.

Assessment of Water Contamination at Municipal Solid Waste Disposal Site, Jawaharnagar, Hyderabad, Telangana, India

The impact of uncontrolled municipal solid waste disposal of 3800 tons per day on surface and groundwater downstream of the Jawaharnagar dumping site was studied. The un-engineered solid waste dumping yard site spreading over about 300 hectares (ha) is located on topographic high (hillock) and falls in Madyala stream and Dammaiguda watersheds of Musi sub-basin. Granites of the Archaean age underlie the area. Both surface and groundwater samples, collected covering hydrological cycles of 2011and 2012, were analyzed for major chemical constituents. Fifteen samples belonging to both seasons of 2012 were tested for BOD, COD, and TOC. The mean values of some tested chemical constituents of surface water samples (15) were - EC 13066 m S/cm, TH 753, Na+ 813, K+ 530, HCO3- 978, Cl- 1304, and NO3- 262 (all in mg/l), which prove that tanks and stream near the dump yard were pools of leachate. The average values of contaminated groundwater samples among the four sampled sessions (17) indicate EC was above 5000 m S/cm, TH 1624, Cl- 1502, and SO42- 284(all in mg/l), which were found much above the threshold values. Very high TOC (mean SW 241; GW 154 mg/l), BOD (5410; 117), and COD (6427; 176) content in both surface (SW) and groundwater (GW) samples indicate the presence of organic pollutants sourced from domestic waste dumps. Wide temporal and spatial variability in the concentration of many ion species could be due to rainfall deviation, point source changes, and heterogeneous fracture patterns. Low resistivity values (5 to 25 ohm.m) at a distance of 4 km from the dumping site and high infiltration rate (29 cm/hr) at the Madyala stream indicate hydrological features controlled the mass flux. The chloride-sulphate alkaline-earth water facies, K+:Mg2+ and BOD/COD ratios demonstrate apart from anthropogenic input water-rock interaction and evapotranspiration governed the evolution of water chemistry. The study supports the hypothesis that solid waste dumps, which attained the methanogenic phase, were a point source of pollution that generates leachate and dissipates contaminants to the aquatic environment through preferred pathways influenced by factors like soils, topography, aquifer hydraulics, and contaminant kinetics.

Quantification of landfill gas emissions and energy production potential in Tirupati Municipal solid waste disposal site by LandGEM mathematical model

The present key challenges the world is currently facing are the environmental pollution, climate change and energy crisis. The anthropogenic emissions of carbon dioxide due to burning of fossil fuels for energy production and other greenhouse gas emissions are considered unsustainable, and whole world is having a paradigm shift towards the renewable energy. The one of the major contributor of the greenhouse gases like methane, carbon dioxide are the municipal solid waste landfill sites. The landfill sites contains nearly 50–60% of organic contents, and they undergo anaerobic decomposition with a help microbes in the waste dumps contribute to the higher percent of methane emissions. There is now enhanced public awareness on sustainable products, and commodities usage in their daily needs, hence the global warming can be slowed down and devise an environmentally sound sustainable society. The present study aimed to provide a methodology to quantify the amount of methane and carbon-di-oxide emitted from the Tirupati municipal solid waste dumpsite using LandGEM3.02 model and empirical equation to estimate the renewable energy potential. The method provided was simple and more accurate having higher efficiency in predicting the landfill emissions and subsequently the energy potential. The study shows that the energy emission potential are maximum to the waste with a higher fraction of biodegradable organic content. Therefore, the method can be implemented in all the landfills by the policy makers to predict the methane emissions and control the greenhouse gas emissions by sequestering the methane and carbon dioxide optimally for energy production.•Landfill gases are a primary constituent in greenhouse gases and has potential for energy production.•The results from this study showed an abundant quantity of methane and carbon dioxide are emitted from tripathi landfill site.•The study concludes that methane can be extracted and used as alternative source of sustainable energy.

Municipal Solid Waste Disposal Site Selection Using Remote Sensing Technology and AHP Process (Case Study: Khesht city, Fars Province, Iran)

The design and implementation of the municipal waste management system aim to solve the urban issues and ultimately contribute to the citizens' health and welfare. The first step in this system is to select a site for the safe disposal of wastes. This survey aimed to select the most suitable landfill site for municipal solid waste using the geographic information system (GIS) and the analytic hierarchy process (AHP) model following the environmental, economic, and engineering criteria. Therefore, by reviewing the literature and backgrounds, the parameters required for locating the landfill site were extracted, and the most important ones (15 sub-criteria) were selected and divided into four groups. The results showed that the sub-criterion of distance to the river with the weight of 0.218 was identified as the most critical parameter, followed by groundwater depth. In this way, the flooding parameter with the weight of 0.010 was considered the least important variable. In addition, it was found that the moderate suitability class with 50% of the area had the highest area, and the very high suitability with 0.8% had the lowest area. The inconsistency rate was equal to 0.04, which illustrates the high consistency of matrices. Then, the overlaying was carried out, and three sites were determined as the best place for a landfill in Khesht county.

A GIS-based multi-criteria decision-making method for the selection of potential municipal solid waste disposal sites in Mersin, Turkey.

Due to rapid urbanization and the resulting rapid population increases, an important problem for cities today is the elimination of solid waste or finding suitable places for waste storage. Municipal solid waste disposal (MSWD) site selection is one of the most important steps in urban waste management. Many criteria political, economic, social, and technological should be considered in this process. Geographic information systems (GIS) and multi-criteria decision-making (MCDM) are tools that are superior to traditional methods in the planning phase of site selection studies. In this study, suitable MSWD sites were determined in Mersin (a Turkish province) based on GIS and the analytic hierarchy process, an MCDM method. Unsuitable areas in the study were removed at the beginning of the analysis. Eleven evaluation criteria were selected: elevation, slope, permeability, distance from lineaments, groundwater level, distance from rivers and water surfaces, distance from roads, distance from settlements, distance from protected areas, and land cover. Considering the evaluation and exclusion criteria, 19.12% of the study area was deemed suitable, and 80.88% was determined unsuitable for an MSWD site. An MSWD suitability map was created as a result of the study. The outcomes indicate that 80,377 ha and 83,022 ha of the study area were classified as high and very high suitability, respectively. Based on these results, we evaluate whether the locations of existing solid waste landfills are appropriate and propose alternative solid waste landfills for each district.

Techno-commercial Assessment of Concurrent Municipal Brown Field Reclamation Procedures: A Pivotal Case study of Jawahar Nagar Dump Site

Techno-commercial Assessment of Concurrent Municipal Brown Field Reclamation Procedures: A Pivotal Case study of Jawahar Nagar Dump Site

Pollution threat to water and soil quality by dumpsites and non-sanitary landfills in Brazil: A review

This work presents an overview of environmental studies performed in areas affected by dumpsites and non-sanitary landfills in Brazil, focusing on physicochemical analysis of surface water, groundwater, and soils, as well as geophysical surveys. The objective was to identify the main contaminants found in these areas and to assess their environmental impact, guiding possible intervention measures, indicating the priority areas, and showing whether post-closure activities are mandatory. The results should support governmental actions, especially considering the recent approval of Brazil’s new sanitation framework. The present review assessed 162 publications, which described 104 different municipal solid waste (MSW) disposal sites. The physicochemical parameters of analyzed surface water, groundwater, and soil samples were above Brazilian legislation levels in 74%, 70%, and 24% of the studies, respectively. The parameters more frequently above permissible levels were coliforms, biochemical oxygen demand, dissolved oxygen, and phosphorus for surface water; lead, coliforms, and iron for groundwater; copper, cadmium, lead, and zinc for soil. The results indicated that Brazilian dumpsites are causing negative impacts in surrounding soils and water resources, posing ecological and public health risks that persist even after the site’s closure. Considering that this study provides only a reduced scenario, the dimension of this environmental problem in Brazil is noteworthy. Therefore, it is suggested that not only inadequate disposal is prohibited, but also efficient enforcement methods are adopted and aftercare is appropriately regulated in the country, making it obligatory to establish monitoring plans and implement mitigation techniques to avoid abandoning potentially contaminated areas.

Accounting Greenhouse Gas Emissions from Municipal Solid Waste Treatment by Composting: A Case of Study Bolivia

Waste generation is one of the multiple factors affecting the environment and human health that increases directly with growing population and social and economic development. Nowadays, municipal solid waste disposal sites and their management create climate challenges worldwide, with one of the main problems being high biowaste content that has direct repercussions on greenhouse gases (GHG) emissions. In Bolivia, as in the most developing countries, dumps are the main disposal sites for solid waste. These places usually are non-engineered and poorly implemented due to social, technical, institutional and financial limitations. Composting plants for treatment of biowaste appear as an alternative solution to the problem. Some Bolivian municipalities have implemented pilot projects with successful social results; however, access to the economic and financial resources for this alternative are limited. In order to encourage the composting practice in the other Bolivian municipalities it is necessary to account for the GHG emissions. The aim of the present study compiles and summarizes the Intergovernmental Panel on Climate Change (IPCC) guidelines methodology and some experimental procedures for accounting of the greenhouse gases emissions during the biowaste composting process as an alternative to its deposition in a dump or landfill. The GHG emissions estimation results by open windrow composting process determined in the present study show two scenarios: 38% of reduction when 50% of the biowaste collected in 2019 was composted; and 12% of reduction when 20% of the biowaste was composted.

Risk Perceptions and Experiences of Residents Living Nearby Municipal Solid Waste Open Dumpsite in Ginchi Town, Ethiopia: A Qualitative Study.

BackgroundDue to improper municipal solid waste management, the use of open dump sites for final disposal of solid waste is common in towns and cities of Ethiopia.PurposeThis study explored risk perceptions and experiences of Ginchi town residents living near Aba-Semer municipal solid waste open dumpsite in Ethiopia.MethodsData on lived experiences were generated using a phenomenological approach. Focus group discussion was used to explore risk perception. Purposive sampling was used to select five in-depth interviewees and 12 participants in two focus group discussions among residents living near Aba-Semer open dumpsite. Amharic language tape recorded data were transcribed verbatim and translated to English. Data were analyzed using OpenCode and a thematic approach was employed.ResultsAll the participants perceived municipal solid waste open dumpsite as a risk to the environment and health. Disappointment and anger were experienced due to lack of solutions and ongoing dumping of municipal solid waste at the open dumpsite. Residents were mainly victims of respiratory-related health problems and emotional stresses.Conclusion and RecommendationRisk perception was much influenced by lived experiences and observations of physical features. In return, risk perception and lived experiences had affected the level of emotional reactions from living near the open dumpsite. The municipality of the town should provide sustainable solution with provision of properly sited and designed municipal solid waste disposal site for the community in order to alleviate environment and health impacts from open dumpsite.

Household Generated Solid Waste Collection System Management Using Arcgis: a Case of Jimma Town, Southwestern Ethiopia

Proper management of solid waste collection is one of the challenges in the urban areas of developing countries like Jimma town. Therefore, this study aims to assess the municipal solid waste collection system in Jimma town using geographical information system, GIS, techniques. Data used were digital elivation model, DEM, river shapefile, and coordinates of the locations of municipal solid waste, MSW, collection containers and open disposal site. Distances of the locations of existing MSW collection bins from the surface water, the contour lines and flow directions of areas around the existing Qofe Open Dump Site were evaluated. The findings of the study indicate that there was one waste container that was allocated in a 20 m buffer distance from the river. The solid waste collection bins in the town were not evenly allocated. The allocated waste collection containers covered only 12.32% of the total area of the town. There were about 34(51.52%) shortage of MSW collection bins in the town. The municipality should transfer collection bins placed in the river buffer zone of 20 m to other suitable locations. Unserved areas of the town should have waste collection containers after further detail investigation. Water sources near the open disposal site need to be regularly monitored for quality degradation.

Estimation of Methane Production and Electrical Energy Generation from Municipal Solid Waste Disposal Sites in Pakistan

This work aimed to estimate the annual methane production from the municipal solid waste disposal sites in Pakistan. In this study, the Intergovernmental Panel on Climate Change (IPCC) default methodology was used to estimate theoretical methane formation potential of the waste disposal sites in major cities of Pakistan. The estimates of this study are based on the last population census conducted in the year 2017 and latest available data regarding the waste generation and management practices in the cities considered in the study. Results showed that 31.18 million tonnes of municipal solid waste (MSW) is generated annually. The top 10 major populated cities in Pakistan (with 20% share in country’s population) contributing 31% share in the total quantity of MSW generated in overall country. On average 50–60% of the MSW generated is collected and openly dumped at the designated waste disposal sites. After analyzing the data, we estimate that annually 12.8 MtCO2-eq of methane is emitted from the waste disposal sites in major cities considered in this study. The methane produced from the waste disposal sites can be sustainably utilized as a source of energy through transforming MSW disposal sites (open dumps) to sanitary landfills with methane capturing and utilization facilities. In the present scenario of waste management and methane formation potential, sanitary landfills would generate 62.35 MWh of electric power if 25% of the methane was recovered and utilized in power generation.

Municipal Solid Waste Management and Adverse Health Outcomes: A Systematic Review.

Municipal solid waste (MSW) can pose a threat to public health if it is not safely managed. Despite prior research, uncertainties remain and refurbished evidence is needed along with new approaches. We conducted a systematic review of recently published literature to update and expand the epidemiological evidence on the association between MSW management practices and resident populations’ health risks. Studies published from January 2005 to January 2020 were searched and reviewed following PRISMA guidelines. Eligible MSW treatment or disposal sites were defined as landfills, dumpsites, incinerators, waste open burning, transfer stations, recycling sites, composting plants, and anaerobic digesters. Occupational risks were not assessed. Health effects investigated included mortality, adverse birth and neonatal outcomes, cancer, respiratory conditions, gastroenteritis, vector-borne diseases, mental health conditions, and cardiovascular diseases. Studies reporting on human biomonitoring for exposure were eligible as well. Twenty-nine studies were identified that met the inclusion criteria of our protocol, assessing health effects only associated with proximity to landfills, incinerators, and dumpsites/open burning sites. There was some evidence of an increased risk of adverse birth and neonatal outcomes for residents near each type of MSW site. There was also some evidence of an increased risk of mortality, respiratory diseases, and negative mental health effects associated with residing near landfills. Additionally, there was some evidence of increased risk of mortality associated with residing near incinerators. However, in many cases, the evidence was inadequate to establish a strong relationship between a specific exposure and outcomes, and the studies rarely assessed new generation technologies. Evidence gaps remain, and recommendations for future research are discussed.

Evaluation of heavy metal contamination and ecological risk of soil adjacent to Saravan municipal solid waste disposal site, Rasht, Iran.

This study was performed on the soil of the Hyrcanian forests near Saravan municipal solid waste dumpsite, Rasht, Iran. In this research, the contents of metals (As, Pb, Cr, Cd, Cu, Hg, and Zn) were analyzed by inductively coupled plasma mass spectrometry (ICP-MS). The geoaccumulation index (Igeo), contamination factor (CF), and enrichment factor (EF), as well as pollution load index (PLI), were used to evaluate the metals contamination. The ecological risk factor ([Formula: see text]) and the potential ecological risk index (PERI) were applied to assess ecological risk. Pearson's correlation coefficients and the principal component analysis (PCA) were used to determine the possible origin of the metals. The metal concentrations were as follows: Zn > Pb > Cu > Cr > As > Cd > Hg. The results of the statistical tests showed that, except for Cr, the other elements had a significant difference with the control station (P < 0.05). The results of the Pearson's correlation coefficients, the PCA, and the Igeo revealed that the possible source of As, Hg, and Pb was the waste dumpsite activities and other anthropogenic origins, while Cd, Cu, Zn, and Cr probably have geogenic sources. The PLI was < 1, in unpolluted grade for all stations. The [Formula: see text] of the metals ranged as follows Hg > Cd > As > Pb > Zn, Cu > Cr, which implies that Cd and Hg play a key role in determining the ecological risk. The mean value of the PERI was 192.11 that represented a moderate ecological risk.

Optimum Municipal Solid Waste Disposal Site Selection Using Gis Based Multi-Criteria Decision Analysis: A Case of Nekemte Town, Oromia Regional State, Ethiopia

Solid waste is a major global concern particularly in developing countries. Municipal landfill site selection is becoming the main challenge as a result of various factors. To make the site to be selected environmentally sound, socially acceptable and economically feasible, GIS based multi-criteria decision analysis ( MCDA ) method that has the capability to combine spatially referenced data with experts’ value judgment was used in this study. The analytic hierarchy process ( AHP ) was the major technique of MCDA used to derive the weights of the nine criteria considered – distance from road network, geology, distance from fault lines, soil permeability, slope, distance from rivers/streams, distance from lakes, distance from the built-up areas and land use/land cover types. After creating Multiple-ring Buffers for road network, fault lines, rivers/streams, lakes and built-up areas by reviewing various literatures, all the criteria were standardized by reclassifying them into suitability classes. The weights of the reclassified criteria were derived using AHP Pair-wise Comparison Matrix in Microsoft Excel and then combined together using the Weighted Overlay tool in ArcGIS to produce the composite suitability map of the study area. Accordingly, 0.43% and 0.02% of the study area are unsuitable and highly suitable, respectively. The remaining 41.64%, 51.12%, and 6.8% of the study area are poorly suitable, moderately suitable and suitable, respectively. The raster composite suitability map of study area was then converted into vector map to select candidate disposal sites. Accordingly, six candidate municipal solid waste disposal sites were selected, evaluated with respect to their area (size), distance from center and distance from the nearby built-up area. They were weighted with respect to these three evaluating criteria using AHP Pair-wise Comparison Matrix and finally mapped and ranked. The first, second and third ranked candidate disposal sites have an area of 46 ha, 29 ha and 35ha, respectively. The first and second candidate sites are located in Burka Jato sub-town, while the third one is located in Sorga sub-town. In order to reduce the adverse impact of surface water pollution in the downstream, runoff should not flow into and out of the MSW disposal sites. To minimize groundwater pollution, detailed investigation on sub-surface condition of the site should be made during design. Greenhouse gases collection should also be designed to reduce air pollution. Keywords: multi-criteria decision analysis; analytic hierarchy process; Pair-wise Comparison Matrix; Weight Overlay DOI: 10.7176/JEES/10-11-01 Publication date: November 30 th 2020

Subsurface characterization using electrical resistivity and MASW techniques for suitable municipal solid waste disposal site

Investigation of the subsurface becomes a compulsion before waste disposal site is developed. The content of this paper presents integrated geophysical methods in a basement complex terrain, southwestern Nigeria. The dumpsite is located at Oke Saje, Abeokuta, in Ogun state. This was done to investigate the leachate curtailment capacity (LCC) of the existing dumpsite by characterizing the subsurface. A clay overburden thickness of about 15 m which acts as leachate filter is a standard for determining the LCC of a dumpsite. Prior to this work, there is no documented record that such investigation had been done to reveal the LCC before establishment of the dumpsite. Vertical electrical sounding (VES), 2D electrical resistivity tomography (2D-ERT) and multi-channel analysis of surface waves techniques were adopted for the investigation on the existing dumpsite. Eighteen VES was carried out using Schlumberger configuration at 5–10-m intervals to obtain resistivity values and the respective lithological units of the subsurface and three electrical resistivity imaging using dipole–dipole array. MASW techniques were later carried out to ascertain the underlain materials by determining seismic wave arrival times which were processed to obtain the shear wave velocities (SWVs) of the subsurface. The 2D-ERT revealed clearer features of the subsurface as topsoil, weathered, fractured and fresh basement. The result of the VES revealed topsoil with resistivity values ranging from 18 to 1381 Ωm, weathered layer (clay) with resistivity values 15–84 Ωm, fresh basement and fractured layer with resistivity values 192/366–5585 Ωm. The thickness of the clay deposition ranges from 1.8 to 18.5 m. The MASW result using SWVs revealed topsoil, sandy clay, clayey sand and clay with rigidity modulus ranging between 42.4 and 160 N/m2 at the depth of 30 m. The combined methods carried out at the dumpsites revealed the same lithological units. The waste disposal site is said to have a good LCC due to the presence of clay overburden thickness but not up to 15 m in some parts of the dumpsite.

Application of electrical resistivity tomography and hydro-chemical analysis for an integrated environmental assessment

Municipal solid waste disposal sites generate groundwater contamination through leachate release to the surrounding environment, causing various harmful and deleterious effects. Thus, an integrated assessment of landfilling impact on the environment via the combination of electrical resistivity tomography (ERT) and hydro-chemical analysis from existing wells was undertaken to ascertain the contamination of both surface and groundwater near the Bizerte landfill site, northeastern Tunisia. The ERT measurement indicated a polluted depth of over 20 m beneath the surface which coincides with marly substratum.Similarly, hydro-chemical analysis showed that continuous leachate generation obviously affected chemical properties of surface and groundwater, especially an increase in heavy metals contents (lead, cadmium and nickel contents). The results also indicated significant microbiological contaminations of the water samples. Nemerow pollution index (WQI) for water classification indicated that all sites had clean water with respect to metal contamination, except for R1 and R2 (surface water), which have WQI values of 2.5 and 2.1, respectively. Based on those results, it is recommended to strictly monitor leachate generation, surface water and groundwater quality in the Bizerte landfill for an integrated sustainable environmental assessment.

ENGINEERING GEOLOGICAL TYPIFICATION OF TERRITORIES FOR ALLOCATION OF MUNICIPAL SOLID WASTE MANAGEMENT FACILITIES

The management of municipal solid waste (MSW) appears to be one of the major ecological problems at present. Selecting sites for the disposal of municipal solid wastes or waste utilization facilities is one of the most contentious aspects of waste management. The present study aimed to develop the methodology to assess the natural protection of the geological environment from contamination upon the implementation of large ecological projects due to the allocation of MSW utilization facilities. The case of the Central Federal District of Russia (CFD) is taken as an example. The suitability of territories for municipal solid waste disposal is assessed according to the presence of weakly permeable deposits in the geological cross-section and their occurrence mode. A “map of engineering geological zoning CFD by the conditions of allocation MSW disposal sites and utilization facilities” has been compiled to a scale 1:2500000. The map gives a general indication of the suitability of the planned sites for waste disposal within the regarded region and showed that, for the bulk of territory, the allocation of MSW disposal and management facilities requires undertaking additional measures for the geoenvironmental protection from contamination.

The processing of kieselguhr sludge with obtaining a new end product as reserve for reducing resources consumption of vegetable oil manufacture

The article presents the research findings of processing kieselguhr sludge – a waste product of refined sunflower oil production, generated at winterization stage, when vegetable waxes, waxlike substances and other components, which crystallize at low temperatures and cause the oil turbidity, are removed. The resulting waste product is a slow stock of organomineral composition with organic matter content 65-70%. This sludge is virtually not recycled, but dumped at municipal solid waste disposal sites. This results in the environment pollution and non-recoverable losses of high-quality mineral stock and valuable organic components. It has been determined that after thermal modification of sludge waste the organic substances in it are partially oxidized with the formation of carbon layer on the surface of diatomite particles. The resulting product is a thermally modified kieselguhr sludge, which is characterized with mesoporous structure, high water repellency, and oil-receptivity and can be used as an adsorption material for purifying wastewaters from emulsified petroleum products in dynamic conditions. The secondary use of kieselguhr sludge would allow reducing the amounts of waste accumulation and improving the efficiency of raw material resources utilization.

Groundwater Quality Assessment near an Open Dump Municipal Solid Waste Disposal Site in Ekiti State, Southwestern Nigeria

This study assessed groundwater quality around an open dump municipal solid waste (MSW) disposal site at Ilokun, a village on the outskirts of Ado-Ekiti, Ekiti State, Nigeria. Three geotechnical boreholes and three water boreholes (tube wells) were drilled at intervals of 15m, 30m and 45m away from the disposal site. Soil samples were obtained near the top and at the bottom of the geotechnical boreholes. Tests carried out on these samples included the sieve analysis, specific gravity, bulk density, natural moisture contents, Atterberg limits, linear shrinkage, and hydraulic conductivity tests, and these were used to index and classify the soils at the landfill dumpsite. It was discovered that the soils belonged to the clay and clayey-sand USCS groups (CL and SC mainly). Groundwater samples were taken from the three water boreholes (tube wells), and physical, chemical and microbiological investigations carried out on the water samples and on water obtained from an existing hand-dug well in the neighbourhood of the dumpsite. The parameters obtained from the tests on the samples were compared with the Guidelines for Drinking Water Quality of the World Health Organisation (WHO) and the Nigerian Standard for Drinking Water Quality of the Standards Organisation of Nigeria. The water quality parameters determined included: the acidity (pH), temperature, electrical conductivity (EC), colour and odour, turbidity, dissolved oxygen (DO), biochemical oxygen demand (BOD), total dissolved solids (TDS), total hardness (TH), and contents of the constituents such as total iron, chloride, sulphate, nitrate, etc. The microbiological characteristics determined are the Total Bacterial Count (Total coliform count), and the presence of Faecal streptococci, Staphylococcus aeurus and Escherichia coli. It was discovered that the groundwater at the dumpsite has been heavily contaminated and unfit for human consumption or usage without appropriate treatment to render them potable and fit for domestic use.