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Assessment Of The Hydrogeological Aspects Of White River In South Dakota

1689 words - 7 pages

Introduction
Water is one of our mainly significant natural assets. If our planet would be lacking it, there would be no life present on this planet earth. It’s the duty of Hydrologists to study all characteristics of water bodies present at site and its relation to geography, geology, topography, biology, and chemistry. It’s the duty of Hydrologists to understand the problem present at site and then solve the problem by applying applicable technical knowledge and mathematical principles to solve water-related problems in civilization. These problems include the quantity, quality, and availability of water. The main task of the report is to evaluate the Groundwater resources and quality, the ...view middle of the document...

• Prepare 1:10000 geological maps to describe the boundaries of soil strata.
• Commence test pits to test theoretical boundaries and depth of impermeable strata.
• Install four or more boreholes into the ground to present baseline statistics and sampling position.
• Trial ground wells for determining the ground water table conditions.
Field Observation Surveys
Field observation surveys are carried out in order to collect data in form of geological maps, hydrological maps and terrain of the proposed site. The data can then be acquired basing upon the relevant task. The main aim of this report is to collect data for the ground water and surface water. The tasks required to carry out such tasks are given in the proposal below:
1. Topography & Hydrology Mapping
The section is divided into two main headings i.e. Topography and Hydrology, when discussing topography we mean the condition and type of the terrain which may be depicting levels of the ground, hills, valleys, forests and water bodies. The topographical mapping is necessary to identify the surface groundwater flows and their velocities. The surface groundwater is related with the runoff quantity and precipitation. Hydrology is the second aspect of this heading under which we will discuss the conditions that mainly relate to the depth of the soil water level below the ground surface. Barsoum et al (2005) note that for alder, the water level needs to be close to the surface when the trees are young, but deeper when fully grown. Optimal growth of seedlings occurs when water levels are 10-30 cm below the surface. (Eymard 1969)
2. Geological Mapping
The geological sequence relevant to the site must be determined so infiltration rate can justified, water percolation, sub surface flows and to determine the strength of the strata for future development if any. The geology plays an important role when describing the hydrological data for the fact that underwater aquifers, streams and hot spring can be identified which are natural resources and can be utilized. The data will help in determination of the quality of sub surface and surface water quality.
3. Hydrological Survey
The Hydrological survey is the main portion of the proposal and is further divided into parts so as to understand easily:
3.1 Groundwater
Groundwater hydrology believes measures groundwater flow and silt transport. Problems in deciphering the saturated zone comprise of classification of aquifers in terms of flow direction, groundwater pressure and, by conclusion groundwater deepness. (Peter 2012) Determinations here can be made using a piezometer. Groundwater location can also be found by digging test wells at close intervals and then using these wells in similar way as that of piezometer, the rise of water level in well will dictate the depth of ground water table.
3.2 Infiltration
The infiltration of water from runoff into the soil is a significant topic. In a number of situations a dry soil may not soak up rainfall as...

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