Water quality Crossword

the action or process of a liquid, especially blood, changing to a solid or semi-solid state.
the process of settling or being deposited as a sediment.
the action or process of filtering something.
the process of cleaning something, especially with a chemical, in order to destroy bacteria.
the action or method of storing something for future use.
observations and measurements used to describe the heath of a water system
Water that is safe for bathing and cleaning , but not drinking
water that is safe to drink
low oxygen levels in water (some)
no oxygen in water
the measure of how acidic or basic a substance is
nitrogen compounds used for growth by plants and algae
Characterized by an increase in nutrients that supports the growth of algae and other plant organism ,they ,decay of which can deplete the water of oxygen
a measure of how clear water is
rapid growth of algae encouraged by too many nutrients (nitrates/phosphates) in the water