91st Avenue Wastewater Treatment Plant, PHOENIX, AZ

Mechanical Piping Services: Fabrication, Retrofit & Installation

VALUE DELIVERED

Significantly improved wastewater services for citizens.

PIPING SERVICES SCOPE OF WORK

UMEC (AZ) demolished the existing digester gas piping system and fabricated new 24-inch through 8-inch diameter stainless steel piping. The company then re-piped 16 digesters.

WASTEWATER TREATMENT FACILITY BACKGROUND

The City of Phoenix provides wastewater collection for about one million people in a 530-square-mile area. To handle this, the City operates two wastewater treatment plants with a combined capacity of about 242.25 million gallons per day and about 336,000 wastewater service connections. The city maintains approximately 4,363 miles of sewer lines.

MECHANICAL SERVICES OBJECTIVES

To provide mechanical services including removing and replacing all digester gas piping, retrofit an existing hot water loop and boiler building, and construct a new boiler building.

MECHANICAL PIPING SOLUTIONS

To complete this mechanical piping services project, UMEC (AZ) had to engage in an extremely intense effort, including two 24-hour shutdowns.

OPERATING COMPANY:
University Mechanical and Engineering Contractors, Inc. (UMEC)

CLIENT:
City of Phoenix

GENERAL CONTRACTOR:
McCarthy Building Companies

ENGINEER:
Brown & Caldwell

		New Construction
		Retrofit
		Electrical Construction
		Mechanical Construction
		Facilities Services
		Consulting Services
		HVAC Services
		Energy Solutions