Analysis of Groundwater Quality in Relation to Domestic Waste Disposal Practices in Minna, Niger State

CHAPTER ONE

1.0 Introduction

Groundwater is a vital source of freshwater for domestic, agricultural, and industrial purposes. In Nigeria, it provides water for more than half of the population, especially in areas where pipe-borne water is inadequate. However, the increasing rate of improper waste disposal has become a major threat to groundwater quality. When domestic waste is poorly managed, it can leach harmful substances into the soil and contaminate nearby wells and boreholes (Akinola, 2020).

Minna, the capital of Niger State, depends largely on groundwater as the main source of domestic water supply. Unfortunately, unregulated waste disposal practices, including open dumping, poorly managed septic tanks, and refuse burning, have raised serious concerns about groundwater contamination. Many households rely on shallow wells located close to refuse dumps or latrines, which increases the risk of pollution. This study, therefore, analyzes the quality of groundwater in relation to domestic waste disposal practices in Minna, with the aim of identifying the extent of contamination and suggesting measures for improvement.

1.1 Background to the Study

Groundwater pollution occurs when contaminants from the surface infiltrate through the soil and reach the aquifer. Common pollutants include nitrates, heavy metals, coliform bacteria, and organic waste. These pollutants often originate from domestic refuse, septic effluents, and agricultural runoff. Once groundwater becomes contaminated, it is difficult and expensive to purify (Ojo & Bala, 2019).

In Nigeria, poor waste management systems have made many urban and semi-urban areas vulnerable to groundwater contamination. In Minna, the situation is worsened by rapid urbanization, inadequate drainage, and the absence of effective environmental regulation. Residents often dispose of household waste in open dumps or drainage channels, which allows leachate to seep into the soil. Over time, this leachate mixes with underground water sources, making the water unsafe for consumption.

As a result, diseases such as typhoid, diarrhea, and cholera remain common in the city. Assessing the quality of groundwater and understanding its relationship with domestic waste disposal practices are therefore critical steps toward improving environmental health and water safety in Minna.

1.2 Statement of the Problem

Although groundwater is a major source of domestic water in Minna, its quality has been compromised by poor waste management practices. Many households lack access to proper waste collection services, leading to indiscriminate dumping of refuse. In addition, some septic tanks and pit latrines are constructed too close to wells and boreholes, violating basic environmental safety standards.

Several studies have warned that groundwater pollution is increasing in Nigerian cities, yet local assessments in Minna remain limited. There is also little awareness among residents about the risks of locating water sources near waste disposal sites. Consequently, this study investigates how domestic waste disposal affects groundwater quality in Minna and evaluates its implications for public health.

1.3 Aim and Objectives of the Study

The main aim of this study is to analyze groundwater quality in relation to domestic waste disposal practices in Minna, Niger State.

The specific objectives are to:

1. Identify the major domestic waste disposal practices in Minna.

2. Assess the physicochemical and bacteriological quality of groundwater samples from selected areas.

3. Examine the relationship between waste disposal sites and groundwater quality.

4. Suggest appropriate strategies for preventing groundwater contamination in Minna.

1.4 Research Questions

1. What are the common domestic waste disposal practices in Minna?

2. What is the current quality of groundwater in selected locations?

3. How do waste disposal practices influence groundwater contamination?

4. What measures can help improve groundwater quality in Minna?

1.5 Significance of the Study

This study is important because it provides scientific information on groundwater quality and its relationship with domestic waste disposal. The results will guide environmental agencies, local authorities, and residents in adopting better waste management and water protection practices. By identifying pollution hotspots, the research will help improve the safety of drinking water and reduce the prevalence of waterborne diseases.

Moreover, the study supports the realization of the United Nations Sustainable Development Goal (SDG) 6, which seeks to ensure access to clean water and sanitation for all. Academically, it contributes to existing knowledge on environmental health and groundwater management in Nigeria. The findings will also serve as a reference for future research on water quality assessment and environmental sustainability.

1.6 Scope of the Study

The study focuses on Minna Metropolis, covering selected residential areas such as Bosso, Chanchaga, and Tunga. It evaluates domestic waste disposal practices and their influence on groundwater quality. The parameters to be analyzed include pH, turbidity, dissolved oxygen, coliform count, and nitrate concentration. However, industrial waste sources and deep aquifer systems are not included due to resource constraints.

1.7 Definition of Key Terms

• Groundwater: Water located beneath the earth’s surface in soil pore spaces and rock formations.

• Waste Disposal: The process of discarding unwanted materials in a safe and environmentally responsible manner.

• Leachate: Liquid that drains from waste material and carries dissolved or suspended pollutants into the soil.

• Water Pollution: The contamination of water bodies or sources with substances harmful to human and ecological health.

• Public Health: The practice of protecting and improving community health through environmental management and disease prevention.

References

Akinola, M. O. (2020). Groundwater contamination and public health risks in Nigerian urban areas. Journal of Environmental Studies, 21(3), 59–76.
Ojo, A. B., & Bala, K. T. (2019). Domestic waste disposal and water quality assessment in Minna, Niger State. Nigerian Journal of Water Resources, 16(2), 42–58.
Sulaiman, I. Y., & Hassan, L. M. (2023). Linking groundwater quality to waste management practices in North Central Nigeria. African Journal of Environmental Science, 12(1), 87–101.