Eliot Quarry
Eliot Mine

The Importance of Aggregates

In California

  • Every person in California uses an estimated six tons of construction aggregate every year.
  • The aggregate industry supports 1.8 million jobs in California producing annual earnings of over $86 billion.
  • The economic impact of the aggregate and construction industry in California is $230 billion, 16% of all California industry output.
  • 43% of all construction aggregates are used on public works projects paid for by the taxpayer.
  • A recent study by the Phoenix Center for Advanced Legal and Economic Public Policy Studies stated that for every mile aggregate is transported it costs $.22 per mile per ton. These costs are passed on to the consumer.
  • A quarry reduces the cost for that city, town or county to build roads, bridges, schools, hospitals and other public work projects.
  • In California according to the study, for every job in the aggregate industry, an additional 3.24 jobs are created in support industries.
  • In California for every dollar of aggregate sales produces an additional $2.38 of sales in other industries.

National Average

  • Every job in the aggregate industry supports an additional 4.87 jobs in other industries and sectors.
  • For every dollar of earnings or wages paid by the aggregate industry produces an additional $4.19 of earnings in other support industries.
  • For every dollar of sales in the aggregate industry, another $3.47 in sales is produced in other support industries

Uses for Our Product

 There are a wide variety of uses for the limestone and other aggregate that we produce. It is used in our everyday lives and most people are not aware of it, nor to the extent that they use our products every day.

  • There are 400 tons of aggregate stone in the average home.
  • 15,000 tons of aggregate are used to build an average size hospital.
  • Your local church used between 10,000 and 15,000 tons of aggregate.
  • Your neighborhood schools use an average of 15,000 tons of aggregate rock.
  • Aggregate stone is typically used within 50 miles of its exaction point.
  • There are 38,000 tons of aggregate stone used to construct a mile of highway.
  • For every mile that aggregate has to be transported it increases the price $.22 per ton.
  • With a state, county or city road project, if that rock has to travel 50 miles, it will add an additional $418,000 to the cost for every mile of highway built.
  • The state estimate is even more frightening. This was taken from a 2012 report, “Aggregate Sustainability in California”, created by the CALIFORNIA GEOLOGICAL SURVEY Department of Conservation, it stated:

“For example, to construct one mile of six-lane interstate highway requires about 113,500 tons of aggregate. Transporting this amount of aggregate 30 miles adds $510,000 to the base cost of the material at the mine.”

Aggregate Is Needed to Produce Everyday Household Items Such as:

  • Toothpaste
  • Chewing gum
  • Make up
  • Food
  • Medicine
  • Paper
  • Glass
  • Fertilizer
  • Cleaning Products

Aggregate Rock is Used to Protect the Environment.

  • Aggregates are used to build both water and sewerage treatment plants, as well as filtering water as part of the purification process.
  • Crushed limestone is used by utility companies in power plants to reduce sulfur dioxide output which produces acid rain.
  • Sand is used for to restore beach erosion and the rock is used to protect coastal communities through barrier walls and for erosion prevention.
  • Aggregate is used for slope protection, building dams and creating navigation channels.

Aggregate Supply in California is Running Out 

The demand for aggregate is increasing, especially in a booming economy, the problem in California is that the approved aggregate reserves are not keeping up with demand and the supply is decreasing, dangerously low in some areas of the state. The report created in 2012 does not take into consideration the rapid rate of growth California is currently experiencing.