The study involves the analyses of the physicochemical and microbiological concentrations of groundwater from 12 water samples for both dry and wet seasons. The aim was to determine the spatial and temporal variations of the ambient groundwater quality for both seasons and of the processes leading to an improved understanding of the groundwater in the area. Sixteen quality parameters include: pH, Turbidity, TSS, Conductivity, Total Hardness, Cl–, PO4, NO3–, SO42–, HCO3-, Fe, Zn, Cr, Cu and Pb. The study revealed that pH values ranged from 5.17 to 6.50 in both seasons, indicating that almost all samples were slightly acidic in both seasons. The relatively high values of some of the parameters in the wet season could be attributed to the influx of sediments from interland and waste from dumpsites as well as human activities. Heavy metal concentrations in most of the locations were found to fall below the WHO (2006) limits, except iron that exceeded the limit. The bacteriological analysis revealed that all locations were above the safe limits suggesting possible contamination by coliform bacteria from human and animal wastes.

The paper aims at providing basic hydrochemical and bacteriological characteristics of the study area Port Harcourt, Nigeria, for use in assessing the groundwater potentials of the area. The overriding interest in water has been its quality and quantity. Water quality is its fitness for the intended use based on meeting the minimum criteria of the physicochemical and microbiological properties compared with water quality guidelines given by the environmental agencies like the World Health Organization, United State Environmental Protection Agency, Federal Environmental Protection Agency and others (Oyebanjo and Ajayi, 2010).

Of late, there has been a global recognition that groundwater quality is as important as its quantity. Current emphasis is not only on how abundant water is, but also on whether its quality status is good enough to sustain its various uses (Udom et al., 1999). Rapid deterioration of groundwater quality in Port Harcourt, Southern Nigeria, due to unregulated exploitation resulting from increasing growth in the oil and gas production activities has become a major concern. The predisposition of groundwater to pollution and the realization of its serious health and economic consequences demand knowledge of the ambient groundwater quality and of the processes leading to an improved understanding of the groundwater in the area.

Science and Technology Journal, Seismic Evaluation of Flat Slab Buildings, Flat Slab System, Finite Element Method, Wide Column Model, Design parameters, Static Linear Analysis, Equivalent Frame Method, Nonlinear Analysis, Flat Slab Structures, Equivalent Frame Method.