California Water Code Section 13050
(l) (1) "Pollution" means an alteration of the quality of the waters of the state by waste to a degree which unreasonably affects either of the following:
   (A) The waters for beneficial uses.
   (B) Facilities which serve these beneficial uses.
   (2) "Pollution" may include "contamination."

(m) "Nuisance" means anything which meets all of the following requirements:

   (1) Is injurious to health, or is indecent or offensive to the senses, or an obstruction to the free use of property, so as to interfere with the comfortable enjoyment of life or property.
   (2) Affects at the same time an entire community or neighborhood, or any considerable number of persons, although the extent of the annoyance or damage inflicted upon individuals may be unequal.
   (3) Occurs during, or as a result of, the treatment or disposal of wastes.
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