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Water Treatment and Management- About the Water Pollution Control Plant

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The City’s Water Pollution Control Plant staff provides the day to day operation of the plant, 4 lift stations and is responsible for the maintenance of the collection systems.

FACILITY:

Name:  Grinnell Water Pollution Control Facility
Owner:  City of Grinnell
Address:  927 4th Avenue
City:  Grinnell
State:  Iowa
Zip:  50112
Phone:  641-236-2600

RECEIVING STREAM:
Stream Name:  Unnamed Tributary to Sugar Creek to the North Skunk River

DESIGN CAPACITY:
Million Gallons/Day:  3.71 (daily average)   5.00 (daily maximum)
Pounds BOD/Day:  2,310
Population Equivalent/Bod:  13,860

NOW TREATING:
Million Gallons/Day:  2.82 (10/1998 – 10/1999)
Pounds BOD/ Day:  1,709
Population Equivalent/BOD:  10,238
Population Served:  8,902

LIFT STATIONS:
I–80 Lift Station – located south of Stage Coach Road and east of Hwy 146
Farmhand Lift Station – located at the intersection of Pinder Avenue and Hwy 146
S.E. Lift Station – located at 1301 1st Avenue
N.W. Lift Station – located ½ mile north of the intersection of 16th Avenue and Reed Street.

RESPONSIBLE OPERATOR(S):
Jan B. Anderson – Superintendent
Jack W. Griffith – Supervisor
Rick Puls – Assistant Supervisor
Marvin Roovaart – Operator

GENERAL DESCRIPTION:

The City of Grinnell Water Pollution Control Plant consists of a rotary trickling filter plant with separate sludge digestion.  Treatment units include mechanical bar screens, grit removal, two circular primary clarifiers, a single rotary trickling filter, two circular final clarifiers, a single anaerobic digester, a 0.75 million gallon sludge storage tank, and a three cell storm water equalization basin with a 16 million gallon capacity.

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