City Council August 7, 2012 Hickory update & Water Supply Update

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San Angelo Water Supply Update August 7, 2012

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Transcript of City Council August 7, 2012 Hickory update & Water Supply Update

Page 1: City Council August 7, 2012 Hickory update & Water Supply Update

San Angelo Water Supply Update

August 7, 2012

Page 2: City Council August 7, 2012 Hickory update & Water Supply Update

Historical Lake Levels

1930

1933

1936

1939

1942

1945

1948

1951

1954

1957

1960

1963

1966

1969

1972

1975

1978

1981

1984

1987

1990

1993

1996

1999

2002

2005

2008

2011

0

20,000

40,000

60,000

80,000

100,000

120,000

140,000

160,000

180,000

200,000

Lake NasworthyTwin ButtesO.C. Fisher

Page 3: City Council August 7, 2012 Hickory update & Water Supply Update

Sep-11 Oct-11 Nov-11 Dec-11 Jan-12 Feb-12 Mar-12 Apr-12 May-12 Jun-12 Jul-12 Aug-120

20,000

40,000

60,000

80,000

100,000

120,000

140,000

Stored Water Volume in Acre-Feet

Ivie Reservoir

123,400

75,820

Page 4: City Council August 7, 2012 Hickory update & Water Supply Update

Twin Buttes Reservoir

Sep-11 Oct-11 Nov-11 Dec-11 Jan-12 Feb-12 Mar-12 Apr-12 May-12 Jun-12 Jul-12 Aug-120

2,000

4,000

6,000

8,000

10,000

12,000

14,000

16,000

18,000

Stored Water Volume in Acre-Feet

15,451

8,780

Page 5: City Council August 7, 2012 Hickory update & Water Supply Update

Lake Nasworthy

Sep-11 Oct-11 Nov-11 Dec-11 Jan-12 Feb-12 Mar-12 Apr-12 May-12 Jun-12 Jul-12 Aug-120

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000

Stored Water Volume in Acre-Feet

8,360 A-F

6,380 A-F

1870.92 Ft.

1869.20 Ft.

Change in Volume: 1,980 Acre-FeetChange in Elevation: 21 Inches

Page 6: City Council August 7, 2012 Hickory update & Water Supply Update

O H Ivie Reservoir

Page 7: City Council August 7, 2012 Hickory update & Water Supply Update

Projected Water Supply

Aug Sept Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sept Oct0

2,000

4,000

6,000

8,000

10,000

12,000

14,000

16,000

18,000

20,000

IvieSupply

Depleted

Month

Pro

ject

ed S

up

ply

, Acr

e-F

eet

Page 8: City Council August 7, 2012 Hickory update & Water Supply Update

Twin Buttes South Pool Pumping

Page 9: City Council August 7, 2012 Hickory update & Water Supply Update

Pipelines to Equalization Channel

Page 10: City Council August 7, 2012 Hickory update & Water Supply Update

Flow Through Equalization Channel

Page 11: City Council August 7, 2012 Hickory update & Water Supply Update

Water Flowing Into North Pool

Page 12: City Council August 7, 2012 Hickory update & Water Supply Update

Hickory Project Update

Page 13: City Council August 7, 2012 Hickory update & Water Supply Update

Well Field Collector Pipelines

• Installation of 50,700 feet of pipe to nine wells

• General Contractor: Price Construction

• Pipeline Sub-Contractor: Darnell & Dickson

• Contract Amount: $3.8 million

• Project Substantially Complete: May 2012

Page 14: City Council August 7, 2012 Hickory update & Water Supply Update

Well Field Layout

Page 15: City Council August 7, 2012 Hickory update & Water Supply Update

Transmission Pipeline

• 62 miles of 30” pipe from well field to San Angelo

• Contractor: Oscar Renda

• Sub-Contractor: S J Lewis

• Contract Amount: $39 million

• Contract Completion: July 2013

Page 16: City Council August 7, 2012 Hickory update & Water Supply Update

30” Pipeline Installation

Page 17: City Council August 7, 2012 Hickory update & Water Supply Update

Transmission Pipeline Status

WELL FIELD

PUMP STATION

STARTINGPOINT

7 MILESAS OF 8/1/12

4.5 MILESAS OF 8/1/12

30” PIPELINE

TOTAL: 62 MILESCOMPLETED: 11.5 MILES

Page 18: City Council August 7, 2012 Hickory update & Water Supply Update

Well Field-Booster Pump Station

• Equip 9 Existing Wells

• Construct 6 mgd Pump Station

• Construct Two 500,000 gallon Tanks

• Install Microwave Telemetry System

Page 19: City Council August 7, 2012 Hickory update & Water Supply Update

Booster Station-Well Field Contract

• Contractor: Archer Western

• Contract Amount: $12.85 million

• Notice to Proceed: June 18, 2012

• Substantial Completion: June 2013

Page 20: City Council August 7, 2012 Hickory update & Water Supply Update

Well Preparation

Removal of obstruction in Well #4

Page 21: City Council August 7, 2012 Hickory update & Water Supply Update

Well Cleaning

Page 22: City Council August 7, 2012 Hickory update & Water Supply Update

Roads to Well Sites

14 miles of crushed limestone roads

Page 23: City Council August 7, 2012 Hickory update & Water Supply Update

Treatment Plant

• Treatment Method Selected: June 2012

• 20% Design Status: August 2012

• Advertise for Bids: April 2013

• Notice to Proceed: June 2013

• Substantial Completion: August 2014

Page 24: City Council August 7, 2012 Hickory update & Water Supply Update

City Council Meeting August 7, 2012

Page 25: City Council August 7, 2012 Hickory update & Water Supply Update

Removal of obstruction in Well #4