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[[File:IDDE Sample.jpg|right|thumb|alt=This image shows a person collecting a water sample from an outfall |<font size=3>Image of a person collecting a water sample from an outfall </font size>]]
 
Because our storm sewer systems carry water directly to our lakes, rivers, and wetlands without additional treatment, only clean stormwater should enter a storm sewer system. If any other discharge enters the system, it is usually an illicit discharge. MS4s must develop and implement a program to detect and eliminate illicit discharges within their storm sewer system.
 
Because our storm sewer systems carry water directly to our lakes, rivers, and wetlands without additional treatment, only clean stormwater should enter a storm sewer system. If any other discharge enters the system, it is usually an illicit discharge. MS4s must develop and implement a program to detect and eliminate illicit discharges within their storm sewer system.
  

Revision as of 14:24, 11 October 2017

This image shows a person collecting a water sample from an outfall
Image of a person collecting a water sample from an outfall

Because our storm sewer systems carry water directly to our lakes, rivers, and wetlands without additional treatment, only clean stormwater should enter a storm sewer system. If any other discharge enters the system, it is usually an illicit discharge. MS4s must develop and implement a program to detect and eliminate illicit discharges within their storm sewer system.