Irrigation at Rocky Mountain Arsenal –Restoration/Mitigation of More Than

8,000 AcresAuthors:

Ronald E. Versaw, Foster Wheeler Environmental Corp

Ronald R. Thomas, Foster Wheeler Environmental Corp.

Brent Peterson, Rain For Rent

DIA

v Pearl Harbor and WWIIv The Cold War Yearsv Demilitarization Rolev CERCLA Investigationsv ROD and Refuge Act

v Remediation VentureOffice

v FWENC AwardedProgram ManagementContractor

v $1 Billion Program Cost– 31 RODImplementation Sites

v Award WinningPerformance

v Approximately 8000AcresRestoration/Mitigation

v Goal 700-800 Acresper year

v Semi-Arid ClimateRequires Irrigation

v Water Requirementsv Sources of Water

v Distribution System

12½-inch every otherweekAug. 12 – Aug. 30

331-inch every other weekJuly 1 – Aug. 9

24½ -inch once per weekJune 3 - June 28

Total(Inches)

Number ofApplicationsQuantity & FrequencySchedule Dates

vMainline Piping 8 to 12 inch, 500 to 1600 GPMvTotal Flow Requirement about 3000 GPMvOperating Pressure 30 – 45 PSIvDistance (3-4 Miles) from Water SourcevBooster Pump

v Safety and Qualityv Wildlife Concernsv Testingv 4 or 5 Two-Man Crewsv Automation vs.

Installation Cost

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v Nearly 3,000 AcresRestored

v Irrigation Cost: $1,500per Acre

v EffectiveEstablishment ofNative Species

v Required in Semi-AridClimate

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Rocky Mountain Arsenal Future Wildlife Refuge

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PRA