Monitoring Well Filter Sand

Mounded bentonite soil mixture well screen well cap riser or stand pipe unslotted soil surface unlined bore hole lined bore hole.

Monitoring well filter sand.

Well rounded sand or gravel that is placed between the formation and the screen. The most recent version is presented in the top row of the table. Wells designed to monitor groundwater to evaluate the changes in the physical chemical and biological properties of water. Thomas kwader presents some guidelines for making your choice.

This table shows changes to this controlled document over time. Other applications can include dewatering well and monitoring wells. The space between the screened section and borehole is backfilled with filter sand typically fraction silica sand. Installation of a filter pack and screen may not be necessary for wells completed in competent bedrock.

The annular space above the sand pack is then sealed to prevent surface. Well pack gravel is used for deep bed in ground wells to form a barrier between the screens and the natural deposit of the land which in turn allows for the well to provide very clean water. It helps to prevent sediment from entering the well. Generally a well functions as a monitor or as a pumping or production well.

Previous versions of the document are. Monitoring well design and installation february 2008 governor. January 29 2013 revision history. Design and installation of monitoring wells design and installation of monitoring wells 101 af r1 effective date.