Water as a resource

• hydrologic cycle
• water flow on surface and groundwater
• wetlands
• aquifer
• water distribution

• common household chemicals
• dredging
• effluent outfall from industry
• cross-connection
• sinkhole
• L.U.S.T.
• Exxon Valdez
• drums

• arid region
• ocean pollution
• fish
• Love Canal
• open sewer
• waterborne diseases
• eutrophication
• ground settling due to aquifer usage

• WWTP
• industrial pretreatment
• landfill liner
• Conservation

• balance cost