History

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The City has owned and operated a wastewater treatment plant (WWTP) since the 1930's. The original WWTP site was abandoned when the current WWTP became operable. The current WWTP was constructed in 1966 with major upgrades in 1980 and 1995. Other minor upgrades have also been completed.

 

 

1930s - Original Plant

Grand Island's original wastewater treatment plant site,

which was located at the intersection of Cherry and Sutherland.

Lincoln Highway runs along the top of the photo 

History1

1930's WWTP

Original treatment plant

History2

1966 - New WWTP Construction

A new plant was built at a location far from the City

The new plant included six main tanks, the solids handling building,

and the influent pump station.

Most of this construction remains as part of the currently operating plant.

History4

1966 - New WWTP Dedication

Construction of the new WWTP was completed in 1966.

History3

1980 - Major Expansion

Added waste activated sludge lagoon, aerobic digesters,

secondary clarifier, solids handling, chemical feed

and storage buildings (blue areas).

Added administration building.

History5

1992 - Prior to Addition Upgrades

Shows site prior to upgrades in 1995.

History7

1995 - Major Improvement

Added the aeration basin, chlorine contact basin, chlorination building,

centrifuges, many other miscellaneous improvements (blue areas).

Shows site prior to electrical improvements.

History8

2002 - Electrical Improvements

Added new electrical building (blue area).

History10

2005

Shows that some major odor sources have been discontinued,

such as the sludge lagoon and the aerobic digesters (red areas).

Shows the new solids handling building and compost biofilter (blue areas).

History12

Curent WWTP Site

The sludge lagoon and aerobic digesters have been

drained and are no longer in use.

History13