Noticing Party: 
Ecological Rights Foundation 
 
  Alleged Violators: 
Golden State Water Company 
American States Water Company
 
  Chemicals: 
2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD)
Hexachlorobenzene
Hexachlorodibenzodioxin
Pentachlorophenol
Polychlorinated dibenzo-p-dioxins
Polychlorinated dibenzofurans