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Water quality
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City scene showing point source pollution
Factory and city scene
Fishers with dead fish on bottom
Flounder under silt
Flounder under silt, partial
Minerals in water graphic
Oil spill pollution
Red tide organism (Gonyaulax sps.)
Salinity/temperature graph
Secchi disk
Secchi disk under water
Sign, beach closed
Sign, beach open
Turbidity, particles in water with beaker
Water molecules
Water quality impacts: boating
Water quality impacts: bull dozer
Water quality impacts: car repair
Water quality impacts: copper smelter
Water quality impacts: cows
Water quality impacts: cows 2
Water quality impacts: crop dusting
Water quality impacts: detergent, bilge waste
Water quality impacts: discarded cigarette
Water quality impacts: drainage
Water quality impacts: dredging
Water quality impacts: insect sprayer
Water quality impacts: outfall
Water quality impacts: primary sewage outfall
Water quality impacts: soap
Water quality impacts: tractor
Water quality report card