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HYDROCENSUS

A hydrocensus survey can form part of the specialist studies required to support an Environmental Impact Assessment (EIA) Report. Chapter 3 of the National Water Act (Act 36 of 1998) requires that a person who owns, control, occupies, uses the land is responsible for preventing pollution of water resources and is also responsible to remedy (correct) the effects of the pollution. It is with this basis that the hydrocensus may be deemed necessary for the site to gather all relevant information related to groundwater and its related potential impacts.

The main objective of a hydrocensus survey involves the location and gathering of information on boreholes, users, uses and sensitive ecological receptors within a defined radius of the development. It is important to note that a review of the groundwater database is not considered to suffice as a hydrocensus.

The actions performed during the hydrocensus fieldwork includes:

Locating existing neighbouring boreholes.
Site walk to identify possible groundwater pollution sources.
Perform hydrocensus survey with the following recordings:
Taking coordinates of the boreholes using handheld GPS.
Collecting water samples for each borehole; and
Taking photographs of the area.

It is necessary to understand the receiving environment and who/what may potentially be affected so that possible contamination can be prevented or have certain mitigation measures in place.

Environmental Assurance (Pty) Ltd. (ENVASS) offers a wide range of hydrogeological services that can be utilised on your next project. If you may require a proposal for specialist studies, please do not hesitate to contact our highly qualified and experienced specialists at ENVASS on 012 460 9768 or info@envass.co.za.

012 460 9768 info@envass.co.za

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