Spills and contamination to lakes, rivers, and streams
Suspicious dumping to catch basins or waterways
Unusual discharges from pipes
Sewage on the ground or draining to surface water
Large number of dead fish in waterways
Failing or leaky septic systems
Polluted runoff from storage piles or dumpsters to catch basins or waterways
Sewage, detergent, chemical, petroleum or rotten egg odors
Soil erosion from construction sites