Possibilities of environmental influences on the water resource

Sewage discharge locations in the surroundings (distances from the catchment area of the water resource to be investigated, distance from the sampling location) 

Agriculture in the surroundings, where necessary distance and nature of agricultural utilization (seepage pits, dung heaps, fertilization - animal, artificial, plant protectives and herbicides, insecticides, etc.) 

Surrounding industry, where necessary distance and type of industrial utilization 

Settlements in the surroundings (individual houses, individual farms, 

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