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Norman Wastewater Treatment Plant, OK

Existing Treatment Elements

Completely mixed activated sludge system; high rate trickling filters; rotating biological contactors

Capacity

30,000m³ a day (original); 45,000m³ a day (Phase 1); 100,000m³ a day (final)

Project Costs

$12.5m (Phase 1); $5m (plant improvements); $6.42m (sludge-handling improvement)

<b>Bar Screens - New Headworks </b>

Type and Number

2 x step screen

Capacity (each)

272,000m&#179; a day

Channel Width

1.8m

Channel Height

3m

Max. Water EL Upstream

2.4m

Installation Angle

53&#176;

Open Screen Area

73%

Vertical Screen Height

4.2m

<b>Bar Screens - Westside Lift Station </b>

Type and Number

2 x step screen

Capacity (each)

75,000m&#179; a day

Channel Width

1.2m

Channel Height

4.5m

Max. Water EL Upstream

3m

Installation Angle

75&#176;

Open Screen Area

73%

<b>Pumps</b>

Type and Number

3 x vertical, close-coupled centrifugal with submersible motors; fourth to be installed in future

Size

75hp

Firm Capacity (one pump out of service)

51,000m&#179; a day (77,000m&#179; a day with fourth pump)

Project Authorisation

1997

Work Began

August 1998

Phase 1 Completion

May 2000

Current Phase Preliminary design approval

24 April 2001

Final Design Approval

11 September 2001

Tender Date

20 March 2003

Contract Awarded

22 April 2003

Construction Began

8 June 2003

Original Scheduled Completion

13 August 2004

Completion

October 2005

Sludge Handling Improvement Start

March 2007

Project Complete

March 2010 (expected)

Plant Owners

Norman Utilities Authority

Grant Funding

Federal Environmental Protection Agency via the Oklahoma Water Resources Board

Project Design

Camp Dresser and McKee

Aeration System

Sanitaire

Main Contractor

Ideal Construction (plant improvement phase); BRB Contractors (earlier work)

Sludge Handling Improvement Project

Walters-Morgan Construction Inc

Centrifugal Blowers

Lamson

Secondary Clarifiers

Westech

RAS/WAS Pump Station

Fairbanks Morse

Electrical

Oil Capital Electric

Instrumental

Bauman

Other Contractors

Midwest Demolition; Stowers; Tarver; American Fence; Omni Mechanical Services; Atlas Foundations; Hansen Masonry; Peterson; Southwestern Roofing
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