chemical evidence: testing, water sampling, particles, chlorine, copper, mass-spectrometry,
Carlsbad desalination plant: industrial waste, desalination brine, ecological impact, biological impact, California Coastal Commission, regulations, long-term impact, Agua Hedionda Lagoon, Pacific Ocean
seawater: runoff, brackish, sea life, organisms, fish, food chain contamination, salinity, beach, shore, swimmers
