Life Technologies – Carlsbad Site Water Conservation Project 2009

Greg Waterbury

Environmental Sustainability Manager

June 2, 2009

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Water Audit Water Usage and Savings Estimates

Approximate Water Use

Process Water Use/ Area gal/yr acre-ft/yr Estimated water savings/yr

Autoclaves (3 units) 4,492,800 13.79 3,594,280

RO/DI Room 2,038,516 6.26 784,045

Cooling Towers 6,165,326 18.92 531,137*

Clean Steam Generators 2,365,200 7.26 1,892,160

Total Estimated Savings 15,061,842 46.22 6,801,622

Water Audit Water Usage and Savings EstimatesAuditors: Kennedy & Jenks

Life Technologies – Carlsbad Site

Water Audit Water Usage and Savings Estimates

*Central plant Energy Conservation Measures project improvements - estimated water savings likely to be higher:

• 2.0 MM gallons Cooling Tower

• 1.5 MM gallons Central plant and VAV• 3.5 MM gallons Total

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Water Conservation Projects

Phase 1

- Autoclave water conservation: kit/trap cooling modification. Limits the amount of water used for trap cooling to as use basis as opposed to continual flow.

- RO/DI purified water system piping reconfiguration to increase efficiency of RO system

Trap cooling water Baseline monitoring

RO pump - water rejection RO/DI water system train (1 of 2)

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Water Conservation Projects

Phase 2

- Central Plant Energy Conservation Measures

$1MM central plant capital project

estimated water savings = 3.5MM gallons annually

estimated electrical savings = 3.2MM kWh annually

estimated cost savings = $482,000 annually (ROI 1.9 yr)

Phase 3

- Irrigation capital project proposal - swap out nozzles and controller

Estimated Savings for Total Site Conversion (Pleasanton)Approximate turf area irrigated with spray heads on Site = 82,000 Square Feet

Gallons of water saved from conversion = 1,730,385 gallons per year

Estimated Savings for Conversion of the Site = $5,781.00