Vacuum_Truck_SaleGroundwater monitoring is an important job that must be done to maintain the quality of any groundwater and prevent the infiltration of pollutants. Without regular monitoring, underground water can become contaminated from nearby excavation projects, mining operations, improper waste disposal, and even failure to monitor underground storage structures for leaks such as the buried tanks at gas stations. It can be difficult to overlook such efforts; however, a vacuum truck sale can provide a vehicle that can help achieve such desired results.

Monitoring groundwater requires several monitoring wells within the location being managed. As the name implies, this type of well is a narrow hole in the ground that is typically 4 inches in diameter with a depth of 25 feet. This hole serves as a way to collect testing samples. Before a viable sample can be used, the hole must be cleared of standing water that would contaminate any sampling attempts. In order to get a viable specimen, the hole must be purged to remove standing water that can typically reach a depth of 15 feet.

How To Monitor

Before the use of vacuum trucks for purging, a manual purging process known as hand bailing was the only option. It required the manual collection of standing water from the hole using a steel container that could haul 1 to 2 gallons. The process of hand bailing was slow and laborious; this is why vacuum trucks found at a vacuum truck sale were introduced to handle the job.

Vacuum Truck Assistance

The operational function of a vacuum truck is to generate massive negative pressure using a vacuum pump. The intake of the pump is connected to a hose used to suction liquids and other semisolid debris. The outtake of the pump leads to a massive holding tank that is used for storing collected liquid and debris. Although the vacuum truck is used for suctioning sewage and septic waste as well as cleaning drains, it is also ideal for pumping monitoring well locations.

Functioning

A standard vacuum hose can be as large as 4 inches in diameter, making it impossible to be used directly on a 4-inch ground hole. So a stinger needs to be attached to the vacuum hose to extend the equipment’s reach and prevent the well from getting contaminated by the hose. A stinger is a simple PVC pipe, usually of 1-inch diameter, and of the same length as the monitoring well.

In order to purge a well without introducing contamination, a stinger is positioned slightly above the water allowing the suctioning action to pull the water into the stinger. This action prevents any type of contamination from getting suctioned in with the water.

Advantages

The use of a vacuum truck such as those found at a vacuum truck sale for monitoring well purging has several advantages over hand bailing.

  • Faster Purging – The equipment can purge a single well in under 10 minutes, while hand bailing would take 20 minutes of purging.
  • Cost Effective – This action is cost effective because of the huge reduction in labor hours that would be needed to hand bail.
  • Lowers Contamination – It doesn’t cause contamination as conventional hand bailing does by allowing the introduction of contaminants because of the up and down movement of hand bailing.
  • Collect Sediment – Sediment that has collected at the bottom of the well can be easily removed by suctioning.
  • Easily Transported – The purged water can be easily transported to a treatment facility since the vacuum truck conveniently holds and stores the collected water until transportation.

Vacuum trucks are a valuable tool for groundwater monitoring. The use of this vehicle makes the job faster, more cost effective, and very convenient. Hopefully this article has provided helpful information regarding the role of vacuum trucks in groundwater monitoring!

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