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SWM PLAN TEST ACTUAL / QUESTIONS AND
VERIFIED ANSWESR
Why can sediment be a pollutant of concern?-sediment suspended in the water can impact submerged aquatic vegetation, fish habitat, and can suffocate bottom- dwelling organisms. It can also carry oils, gasoline, nutrients, metals, and pathogens into the water and reduce the capacity of reservoirs
Why can organic substances like grass clippings, leaves, animal waste, and street litter be a pollutant of concern?These substances lead to depleted dissolved oxygen levels, impairments, and even fish kills.
List reasons why urban storm-water typically contains elevated concentration of nitrogen and phosphorus.-Lawn fertilizers -Detergents -Animal Waste -Organic Matter -Sewer Overflows and leaks 1 / 3
-Improperly Installed or Failing Septic Systems
What do elevated nutrient concentrations cause?
- A growth in algae and decomposition by organisms that use
up a waterbody's dissolved oxygen leading to poor conditions for most existing aquatic organisms.
What are pathogens?Bacteria, viruses, and other microbes that can cause disease in humans
What are considered "trace metals" and what are the potential sources?
-METALS:Copper, lead, zinc, mercury, cadmium, chromium,
nickel, aluminum
-SOURCES: Normal wear of brakes, linings, and tires,
automobile emissions and fluid leaks, metal roofs, and pipes
What is rainwater harvesting?Recycling or reusing stormwater
- / 3
List some benefits of rainwater harvesting?-Reduction in water consumption -Less stormwater runoff needing treatment -Reduce erosion potential and reduce non-point source pollution
What are some home uses for rainwater harvesting?-Toilet flushing -Laundry -Fill Swimming Pools -Vehicle and home power-washing -Water lawns/gardens
What 5 things need to be included in a SWPPP?-Approved erosion and sediment control plan -Approved stormwater management plan -Pollution Prevention Plan -Any addition control measure needed to address a TMDL -Performance measures
What needs to be recorded in the local land records before termination of a land disturbance permit?
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