|
To date, Mobley Engineering has installed over 137,000 feet of line diffuser:
- 6 Hydropower Reservoirs
- 12 Water Supply Reservoirs
- 2 Natural Lakes
- 1 Nuclear Plant Intake Embayment
- 4 Upwelling Diffuser Systems
|
Click on an image or project title below to view a slide show for a particular project .
(We are currently updating this page--pictures coming shortly!)
|
|
| Gulf Island Pond
(Mobley Engineering 2009, 2010)
- FPL Energy, Gulf Island Pond Operating Partnership, Lewiston, Maine
- 6 diffuser lines, 10,400 feet total
- 50-tons/day oxygen capacity
|
|
- Northeast Generation Services, New Milford, CT
- DO Enhancement of Hydropower Releases
- FERC relicensing--required to maintain 5mg DO downstream of hydro facility
- 3 diffuser lines, 1,160 feet total
- 90-tons/day oxygen capacity
|
|
-
Pennsylvania Power and Light, Hawley, PA
-
DO Enhancement of Hydropower Releases
-
To remove hydrogen sulfide and improve water quality
-
1 diffuser line, 3,000 feet total
-
Compressed air, 200-scfm air capacity
|
|
- US Army Corps of Engineers, Savannah District, SC
- DO Enhancement of Hydropower Releases
- 10 diffuser lines, 42,000 feet total
- 20,500 feet of supply lines
- 200-tons/day oxygen delivery capacity
|
|
| Occoquan Reservoir
(Mobley Engineering 2012 -- under contract)
- Fairfax Water Authority, Fairfax, VA
- 39,700 acre-feet (49GL)
- 1 diffuser line, 2,600 feet total
- 54-scfm/day oxygen delivery capacity (3,000 kg/day)
|
| Calero Reservoir
(Mobley Engineering 2011 -- under construction)
- Santa Clara Valley Water District, San Jose, CA
- 7,500 acre-feet (11GL)
- 1 diffuser line, 1,000 feet total
- 12-scfm/day oxygen delivery capacity (675 kg/day)
|
| Lake Vadnais
(Mobley Engineering 2011)
- Saint Paul Regional Water Services, Saint Paul, MN
- 9,000 acre-feet (11GL)
- 2 diffuser lines, 3,000 feet total
- 120-scfm/day oxygen deliver capacity (5,500 kg/day)
|
|
| San Antonio Reservoir
(Mobley Engineering 2009)
- San Francisco Public Utility Commission, San Francisco, CA
- 55,000 acre-feet (68GL)
- 2 diffuser lines, 3,780 feet total
- 9-tons/day oxygen delivery capacity
|
|
| Crystal Reservoir
(Mobley Engineering 2009)
- Board of Public Utilities, Cheyenne, WY
- 3,988 acre-feet (68GL)
- 2 diffuser lines, 1,200 feet total
- 7-ton/day oxygen delivery capacity
|
|
| Peace River Reservoir #1
(Mobley Engineering 2008)
- Peace River Manasota Regional Water Authority, Port Charlotte, FL
- 625,000,000 gallons (2.3GL)
- 2 diffuser lines, 3,630 feet total
- 200-scfm air delivery capacity
|
| Calaveras Reservoir
(Mobley Engineering 2005)
- San Francisco Public Utility Commission, San Fransicso, CA
- 860 acres, 34,000 acre feet (42GL)
- 2 diffuser lines, 2,000 feet total
- 4-tons/day oxygen delivery capacity
|
| Carvin Cove Reservoir
(Mobley Engineering 2005)
- Western Virginia Water Authority, Roanoke, VA
- 2 diffuser lines, 4,000 feet total
- 4 tons/day oxygen delivery
|
| Upper San Leandro Reservoir
(Mobley Engineering 2001)
- East Bay Municipal Utility District, Oakland, CA
- 750 acres, 36,000 acre feet (44GL)
- 2 diffuser lines, 4,800 feet total
- 9 tons/day oxygen delivery capacity
|
| Los Vaqueros Reservoir
(Mobley Engineering 2000)
- Contra Costa Water District, Concord, CA
- 2 diffuser lines, 8,000 feet total
- 14 tons/day oxygen delivery capacity
|
|
| Spring Hollow Reservoir
(TVA 1997, Mobley Engineering 2004)
- County of Roanoke Utility District, Salem, VA
- 1 diffuser, 3,500 feet total
- 120 to 170-scfm air capacity
- Modified to 1 diffuser, 2,000 feet total, utilizing oxygen (2004)
- 1.2 tons/day average oxygen delivery capacity
|
|
| South Twin Lake
(Mobley Engineering 2010)
- Colville Consolidated Tribes Indian Reservation, Inchelium, WA
- 30,000 acre feet
- 1 diffuser line, 3,920 feet total
- 5 tons/day oxygen delivery capacity
- Enhance fish habitat during summer stratification period
|
|
| North Twin Lake
(Mobley Engineering 2008)
- Colville Consolidated Tribes Indian Reservation, Inchelium, WA
- 917 acres, 29,600 acre feet
- 1 diffuser line, 2,450 feet total
- 5 tons/day oxygen delivery capacity
- Enhance fish habitat during summer stratification period
|
|
| Mio Hydroelectric Plant
(Mobley Engineering 2008)
- Consumers Energy, Mio, MI
- Two 25 foot diameter upwelling diffusers
- Supplied by portable air compressor
- Enhance turbine release temperatures for downstream fish habitat
|
|
| Croton Hydroelectric Plant
(Mobley Engineering 2008)
- Consumers Energy, Newago, MI
- Two 25 foot diameter upwelling diffusers
- Supplied by portable air compressor
- Enhance turbine release temperatures for downstream fish habitat
|
|
| Hodenpyl Hydroelectric Plant
(Mobley Engioneering 2007)
- Consumers Energy, Mesick, MI
- Two 15 foot diameter upwelling difussers
- Supplied by portable air compressor
- Enhance turbine release temperatures for downstream fish habitat
|
|
| Broken Bow Dam
(Mobley Engineering 2007)
- Oklahoma Department of Wildlife Conservation, Broken Bow, OK
- Three 15 foot diameter upwelling diffusers
- Supplied by portable air compressors
- Experimental attempt at enhancing turbine release temperatures for downstream fish habitat
|
Mark Mobley collaborated on these projects while working for the Tennessee Valley Authority (TVA)
|
|
| Tims Ford Reservoir
(TVA 2005)
- TVA Lake Improvement II, Winchester, TN
- 12,400 acres; 600,000 acre-feet
- 4 diffuser lines, 15,500 feet total
|
|
| Norris Reservoir
(TVA 2004)
- TVA Lake Improvement II, Norris, TN
- 34,000 acres; 2,500,000
- 3 diffuser lines, 12,000 feet total
|
|
| Nottely Reservoir
(TVA 2004)
- TVA Improvement Plan II, Union County, GA
- 4,000 acres; 174,000 acre-feet
- 2 diffuser lines, 8,000 feet total
|
|
| Buzzard Roost Hydroelectric Station
(TVA 1997)
- Duke Power Company, Greenwood, SC
- 3 diffuser lines, 9,000 feet total
- 22-tons/day oxygen system capacity
|
|
| Watts Bar Reservoir
(TVA 1996, 2003)
- TVA Lake Improvement Plan, Kingston, TN
- 39,000 acres; 1,175,000 acre-feet
- 6 diffuser lines, 44,000 feet total
- 50 tons/day oxygen system capacity
|
|
| Embalse de Pinilla
(Centro de Estudios Hidrograficos and TVA 1995)
- Ministerio de Obras Publicas, Transportes y Medio, Ambiente Ambiente, Madrid, Spain
- 2 lines, 670 meters total
- 1,600-kg/day oxygen system capacity
|
|
| Hiwassee Reservoir
(TVA 1995)
- TVA Lake Improvement Plan, Cherokee County, NC
- 6,000 acres; 430,000 acre-feet
- 15-ton per day pressure swing absorption system (1997)
- 3 diffuser lines, 12,600 feet total
- PSA system replaced with LOx tank and vaporizers in 1999
|
|
| Sequoyah Nuclear Plant
(TVA 1995)
- TVA Nuclear - Environmental Compliance, Hamilton County, TN
- One 1,500 foot long diffuser
- Supplied by portable compressed air
- Fish habitat maintained in intake channel
|
|
| Fort Loudon Reservoir
(TVA 1995, 2004)
- TVA Lake Improvement Plan, Knoxville, TN
- 14,000 acres; 393,000 acre-feet
- 3 diffuser lines,15,000 feet total
- 36-tons/day oxygen system
|
|
| Blue Ridge Reservoir
(TVA 1994, 2003)
- TVA Lake Improvement Plan, Blue Ridge, GA
- 3,200 acres; 195,000 acre-feet
- 5 diffuser lines, 8,450 feet total
- 24-tons/day oxygen system capacity
|
|
| Blue Ridge Reservoir
(TVA 1994, 2003)
- TVA Lake Improvement Plan, Blue Ridge, GA
- 3,200 acres; 195,000 acre-feet
- 5 diffuser lines, 8,450 feet total
- 24-tons/day oxygen system capacity
|
|
| Cherokee Reservoir
(TVA 1994 - 1995)
- TVA Lake Improvement Plan, Jefferson City, TN
- 30,000 acres; 1,500,000 acre-feet
- 16 diffuser lines, 48,000 feet total
- 150-tons/day oxygen system capacity
|
|
| Douglas Reservoir
(TVA 1993, 1995, 1996, 2003)
-
TVA Lake Improvement Plan, Dandridge, TN
-
30,000 acres; 1,476,000 acre-feet
-
10 diffuser lines, 35,000 feet total
-
110-tons/day oxygen system capacity
|
|
