FAQs

Our company rigorously follows industry safety standards, which include thorough site inspections, mandatory use of personal protective equipment (PPE), and strict compliance with OSHA regulations. Before any detonation, the blast area is completely evacuated and secured, with clear warning signals issued. In close proximity to structures, we may employ blasting mats to contain any potential flying debris, also known as flyrock.

Our blasting operations adhere to stringent guidelines for vibration and air blast limits, which are based on extensive research to prevent structural damage, including cosmetic cracking. It's worth noting that ground vibrations from controlled blasting are often less intense than those caused by common household activities, such as forcefully closing a door.

We utilize seismographs to accurately measure ground vibration (peak particle velocity) and air blast (decibels or pressure) levels at the nearest structures. The data is digitally recorded and encrypted to prevent any tampering, ensuring objective and reliable measurements.

Allowable vibration levels can vary depending on state and local ordinances. However, they generally conform to standards recommended by the U.S. Bureau of Mines. A common threshold is approximately 2.0 inches per second Peak Particle Velocity (PPV).

Blasting operations are exclusively conducted by certified blasters who possess the appropriate licenses and substantial experience. This certification typically requires extensive training and strict adherence to federal and state regulations, including obtaining necessary permits from agencies such as the ATF (Bureau of Alcohol, Tobacco, Firearms and Explosives).

Blasting remains the most efficient and cost-effective method for fragmenting hard rock for excavation purposes. This process is essential for various construction projects, including road building, commercial structure development, and mining operations.

A pre-blast survey is a comprehensive documentation of the existing condition of structures within a specified distance from the blast zone, typically 500 to 750 feet. This survey serves to protect both property owners and the blasting company by establishing a baseline condition in the event of any damage claims.

Underground structures such as wells and septic tanks are generally less susceptible to blast-induced damage compared to above-ground structures. This is due to their confinement within the ground, which limits their movement in response to ground waves. The safety standards that protect houses are also sufficient to safeguard these underground structures.

No, the effects of blasting are not cumulative. Each blast is an independent, brief event that does not result in stored vibration energy within structures. Therefore, there is no accumulation of effects over time from multiple blasting operations.