Archive for September, 2008

Solutions for Our Community

September 27, 2008

By Ab Boxley, President and CEO

 

The July Campbell County Planning Commission hearing was a wake-up call for us. That night it was obvious we hadn’t addressed your concerns effectively. Rest assured, we listened hard and will continue to listen to your constructive input. We appreciate your concerns for our community and have a shared goal of ensuring our community maintains a high quality of life.

 

To that end, we have revised our site plan and put binding commitments in place that give you the peace of mind that you and your family, your property, your water, and the rural character of the community will be protected. 

 

We feel it is important that you are aware of the changes we have made in advance of the Board of Supervisors meeting so that you can make decisions based on the new plan.

 

Boxley’s New Plan

We have amended our current application submittal and are now requesting the following:    

  • We have reduced the number of acres we are requesting for rezoning from 488 to 353 by removing the 135 acre parcel zoned Residential on the east side of the property.
  • Our mining and processing operations will be on only 243 acres, leaving 547 of the 900 acre Flat Creek property as natural buffer
  • We have proffered a minimum 300-foot natural buffer around the entire site (110 acres total) which includes 55 acres of the Flat Creek Riparian Preserve along Flat Creek on the western boundary (see attached site plan)
  • We have proffered to have no Asphalt or Concrete Plant on site
  • We have proffered no commercial entrances on Blackwater Road  

Our site plan incorporates tremendous buffer areas to preserve the area’s natural setting. We are committed to making this land an amenity to the community. To that end, we have offered to underwrite the cost to design and develop a park and natural area in the eastern 135 acre buffer. The design and use of the park and natural area would be dictated by what Campbell County Parks & Recreation and area citizens desire for this site.

 

We heard your concerns regarding water.  Although it is unlikely that the operation would affect neighboring wells, we have developed an independent plan to provide you with assurances that well issues will be resolved at Boxley’s expense.  A summary of the plan is attached and the highlights are as follows:

·     An independent team will be established to include a independent Hydrologist, Evington Community Leader and Boxley Team member

·     An independent fund will be established that will have $150,000 in the account when the quarry opens in 15 years, $200,000 in 20 years and will increase an additional $50,000 every 5 years after 20 years to pay for any water repair/issue

·     Boxley will drill you a new well, or hook you up to County water

·     Details of the complete plan are attached for your review       

 

Boxley has a long heritage of working with neighbors and being an integral part of local communities, and we look forward to building this relationship with you in the near future.

 

Debunking Myths About Blasting

September 11, 2008

Bill Hamlin-Boxley’s Vice President-Aggregate Operations

 

We find that many of our neighbors’ concerns come from misconceptions about modern blasting. They have notions that we light sticks of dynamite and drop them down the hole. None of our pay ranges come close to what it would take to pay someone to do that!

 

These days quarry blasting is a precise and highly engineered activity that uses a series of smaller blasts which actually work against the following blast to significantly reduce noise and vibration. It is stringently regulated and should be. All of our quarry blasts are designed, loaded and overseen by a professional blaster, certified by the State of Virginia.

 

So how are shots measured and monitored to ensure compliance? The energy released from a blast generates ground vibration and air overpressure. Ground vibration is measured in inches per second. This is the speed at which the vibrations move through the ground not displacement of the ground. Overpressure is measured in decibels which can also be converted to pounds per square inch. Seismographs are placed at the nearest off site occupied dwelling per state law to measure the vibration and overpressure generated by each of our blasts to ensure compliance.

 

If you live within a half mile or sometimes even a little further from a quarry shot you will know when the blast is initiated. The fact that you can feel or are aware of the shot does not mean that your house has been or will be damaged.

 

The United States Bureau of Mines has issued guidelines to ensure homes are not damaged by quarry blasting. These guidelines are based on 50 years of data from scientific studies to determine exactly what levels of vibration or air overpressure can cause damage to residential structures. These standards are based on science, physics and engineering and have been proven to be factual and have never been successfully challenged in a court of law. Vibrations and decibel levels from Boxley’s blasting operations are well below the allowable limits dictated by Virginia law.

 

Virginia law allows vibrations up to one (1.0) inch per second which is twice as stringent as the U.S. Bureau of Mines guidelines. Virginia laws are based on the U.S. Bureau of Mines extensive testing on what level of vibration or overpressure can cause even cosmetic damage to residential structures.  Vibration levels from blasts at Boxley’s operations are 70%- 80% below the state allowable levels.  

 

The U.S. Bureau of Mines has also completed several studies on wells and underground pipelines to determine if blasting will cause damage to these underground structures. Virginia’s vibration limit of 1.0 inch per second is 4% of what these underground structures can safely tolerate.

 

Most people are surprised to learn that common household activities exert many times the stress and strain on a home than a quarry blast. Slamming a door produces 25% more stress on a residential structure than Virginia’s vibration limits allow.

 

While normal human activities in a home produce a lot of stress on a house, the real culprit in routine cosmetic cracking and minor damage in residential structures is weather. Changes in temperature and humidity and wind have been proven to cause the overwhelming amount of normal and routine cosmetic damage that occur in residential structures. An outside change in temperature of 27 degrees causes stress on a home 8 times what the state laws allow from a quarry shot. A change in humidity of 35% is equivalent of a quarry blast over 5 times allowable state limits. Winds of 23 miles per hour stress a home more than two times what the state allows a quarry blast to produce. 

 

To give further perspective to the amount of disturbance a typical blast causes, here is a chart with information provided by Sauls Seismic and the US Bureau of Mines:

 

 

 

Facts about blasting at Boxley:

  • Blast records are open to state regulatory inspection.
  • Each shot is designed and overseen by a professional licensed blaster.
  • No explosives are stored on site.
  • The bulk explosives are delivered to the quarry in a safe and inert form. Only after their arrival are the explosives activated prior to being placed in the rock formation.  
  • Blasting would occur about once a week at the Flat Creek operation.
  • A blast last about 1-2 seconds.
  • Dust from a blast settles in a couple minutes.
  • Unprecedented large buffer (distance from neighbors) at the Flat Creek site will allow dust from the shots to settle on site.

Safety is the paramount concern of our blasting program. Your safety, your home’s safety and the safety of our people are the highest priority when each and every shot is designed and detonated.