62122 CIP Description

City of El Mirage — Regular Meeting (2021-08-17)

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CITY OF EL MIRAGE CAPITAL PROJECT
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PROJECT DESCRIPTION
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Project No. 
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WRF Aeration System Improvement
Public Works
Sewer
N/A
62122
$ 1,075,000
July-2020
This request is for aeration system improvements needed at the Water
Reclamation Facility. This project consists of replacing the existing 4 KTurbo
aeration blowers with new Aerzen hybrid units. The project also includes the
installation of an evaporative cooling system and modifications to the
aeration piping for each blower. A preliminary estimate for the total cost of
this project is $1,075,000. Please see cost per item Blowers - Aerzen Hybrid
(4): $530,000 Installation: $132,500 Electrical: $20,000 Miscellaneous
20%: $136,500 HVAC in Blower Room: $31,500 Engineering Design:
$127,000 Contingency: $97,500 Project Total: $1,075,000
New
An engineering study was completed last fiscal year that identified operational issues and inefficiencies with the
current turbo blowers used at the plant for aeration. The existing blowers are 10 years old and nearing their end of
useful life, no longer serviceable by the manufacturer, and replacement parts are not very limited. New hybrid
blowers will reduce operating and maintenance costs, improve reliability, and increase efficiency at the plant.
FY20/21
FY21/22
FY22/23
FY23/24
FY24/25
$0
$0
54-Sewer
Fees
$537,500
$537,500
$1,075,000
$0
$0
$537,500
$537,500
$0
$0
$0
$1,075,000
FY20/21
FY21/22
FY22/23
FY23/24
FY24/25
$0
Current WRF Blower System
Aerzen Hybrid Blower Unit
$0