Solving The Puzzle: How to Get People to Care About Controlling Fugitive Dust

2

If it can’t be grown, then it has to be mined 3

4 66,000 people, 40 countries, six continents

Who we are More than 30 products World’s borates supply 65% Revenue Outside U.S.

Our products Major Industrial Product Agricultural Product Specialty Product

Fiberglass, wood preservatives, ceramics and fire-retardant materials that make homes safe and efficient. Enhanced oil recovery, wind and solar energy, as well as biofuels and fuel cell technology. Energy efficiency and energy production

Glass for LCDs, smartphones, tablets and next generation technology. Our products support urbanization of emerging economies.

Boron is one of seven bio essential micronutrients that plants need to grow. Our fertilizers help grow the world’s food supply.

Facts about Boron Operations Located in the Mojave Desert, California Borates mined underground from Mined above ground since 1957 Facility is located on 33,000 acres in which 10,000 acres are mined The pit is 2 miles long, 1 ¾ miles wide and more than 750ft deep Mine 66,000 tons per day –6,000 tons ore, 60,000 tons overburden Process and ship 3,000 tons per day –Railcars, bulk trucks, containers and bags 20 Mule Team carried 10 tons, 170 miles, 10 days from Death Valley to Mojave! 10

Boron Operations 11 Dimensions 2 miles long (NE to SW) 1¾ miles wide +750 ft deep

Inside Boron Operations 12

13

15 Our sustainable development mission … … is to create value by considering the social, environmental and economic opportunities and risks associated with every aspect of our business.

16 How we control fugitive dust

17 Dust control the old fashioned way with water

18 Industry targeted dust control video from Maricopa County Air Quality Department

19 Boron Operations dust palliative application on dry tailings ponds provides stabilization for 5 years without additional water.

Haul road dust palliative application provides dust control without repeat water application 20

Feeder foam surfactant and reduced drop height control dust and help conserve water. 21

Dust containment from process operations 22

Native plant re-vegetation of mine dumps reduces dust from wind erosion 23

Owens Lake Research Project RTM is partnering with the Los Angeles Department of Water and Power (LADWP) to explore the possibility of a waterless dust control method at Owens Lake that uses brine 24

Questions? 25

The puzzle - caring about controlling fugitive dust People who work in the desert in dust prone industries seem to care at work, but forget once they leave. Living in the desert = dust. So what? The APCD will take care of it. Some people are simply unaware they are causing a problem. 26

Vehicular traffic on unpaved roads. Many people do not slow down their speed. 27

ORV use in the desert. Most people do not view this recreational activity as a dust problem. 28

Vacant disturbed land and unpaved lots create dust when wind velocity increases. 29

This is the only time when people seem to care. 30

Solving the puzzle - How to get people to care about controlling fugitive dust Re-direct the messaging to a current focus Use the context of water conservation Re-emphasize health improvements Outreach - Use what works 31

Water use is California’s current public focus Message dust palliative use to conserve water and control dust If you must use water, use process or recycled water, not potable water Soil stabilization controls dust and conserves water Xeriscape helps control dust and conserves water 32

Dust palliatives reduce water use on unpaved roads 33

Feed and stockpile dust control with recycled water when dust palliative use is not feasible 34

Tailings dust control using process water at Kennecott Utah Copper 35

Soil stabilization binder use controls dust and conserves water 36

Cost Comparison – 5 Acre Unpaved Parking Lot Dust Control for 5 Years Soil StabilizerAsphaltWater EarthGlue TM $630 per acre Pavement $217,800 per acre 5,000 gallon water truck application 3 times per hour plus $0.001 per gallon $3,150$1,089,000$767,

Soil stabilization binder use at solar farm controls dust and conserves water 38

Xeriscape controls dust and conserves water 39

Outreach - Use what works 40

A successful PR campaign by Clark County, Nevada 41

Public outreach is a must! 42

Maintain the message to the public 43

Save water, breathe easier 44

Thank You! 45