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Water Quality

Throughout the project area the main concerns are around pollution of groundwater, rivers, lakes and coastal waters. There are many factors that can affect water quality; often the problem arises through a combination of small amounts of pollutants from many different sources accumulating and causing a decline in overall water quality.
Why is management of water quality important?


At Portsmouth Water, 85% of our public water supply is derived from groundwater sources, such as aquifers. Aquifers are both porous and permeable rock formations thus allowing good yields of water for public supply. However, these qualities can also lead to other substances entering the aquifer as a result of human activity, rainfall, and tides, and can cause potential problems by interacting with the groundwater in turn rendering it unfit for human consumption. These pollution sources include agriculture, industrial processes, disposal of wastes, chemical storage and subsequent spillages and urbanisation.

There are two different terms that are associated with these problems, contaminant, and pollutant. A contaminant is defined as a solute that has been introduced to the aquifer, while a pollutant is defined as any contaminant whose concentration levels have reached objectionable levels. Therefore, todays’ contaminant could become tomorrow’s pollutant.

It is therefore very important that water suppliers manage and monitor the contaminants entering a water supply to ensure they do not reach levels that render the water unfit for human consumption.

Tractor in Field


On this website you can find out all about our work to help conserve and enhance this special area. If there is information that you cannot find, would like to see added to the website or if you would like to raise an issue, Please contact us or complete the enquiry form below.

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