<P> Causes of groundwater pollution include: </P> <Ul> <Li> Naturally - occurring (geogenic) </Li> <Li> On - site sanitation systems </Li> <Li> Sewage (treated and untreated) </Li> <Li> Fertilizers and pesticides </Li> <Li> Commercial and industrial leaks </Li> <Li> Hydraulic fracturing </Li> <Li> Landfill leachate </Li> <Li> Other </Li> </Ul> <Li> Naturally - occurring (geogenic) </Li> <Li> On - site sanitation systems </Li>

Which of the following are types of pollutants found in groundwater