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Village Services - DPW / Water

A brief description of the
Department of Public Works

The Village of LaGrange Public Works Department maintains the following:

  • 53 miles of streets
  • 100 miles of curb and gutter, sidewalks and parkways
  • 39 miles of combined sewers
  • 8 miles of storm sewers
  • 2 miles of sanitary sewer
  • 1,800 manholes
  • 2,400 catch basin inlets
  • An urban forest of approximately 10,000 trees and 13 acres of landscape
  • 74 miles of water main
  • 4,500 water meters and water services
  • 562 fire hydrants
  • 638 water valves.

National Pollutant Discharge Elimination System (NPDES) Permit

The Village of La Grange maintains and operates three different types of sewer systems: storm sewer, sanitary sewer, and combined sewer systems. The combined sewer system is designed to convey both rainfall runoff and domestic and industrial wastewater in a single pipe to wastewater treatment plants operated by the Metropolitan Water Reclamation District of Greater Chicago (MWRDGC.) The sewer systems are regulated by the USEPA, through the IEPA, as well as the MWRDGC which treats the sanitary sewage from the Village. The Village is permitted to discharge wet weather sewer flows conveyed by its combined sewer system, that is not collected by the Deep Tunnel system, into regional surface waterways under a special National Pollutant Discharge Elimination System (NPDES) Permit issued by the IEPA. The surface waterway receiving the Village’s combined sewer wet weather overflow is the Salt Creek tributary to the Des Plaines River. As part of the requirements of this NPDES permit, the Village has provided additional information related to the NPDES permit and sewer system that can be accessed by clicking here.