Text Size
Increase text size
Increase text size
Banner

Standard Operating Procedures for Well Installation and Groundwater Sampling Activities

 

The Standard Operating Procedures (SOPs) provided below are intended to assist with the technical aspects of well installation, development and groundwater sampling activities associated with accepted standards and practices followed by professional geologists and hydrogeologists.  These standards will assist local governing authorities, owners and stakeholders with assuring facilities under their regulatory authority or responsible charge can meet the groundwater characterization, monitoring and sampling requirements set forth by the Colorado Department of Public Health and Environment, Hazardous Materials and Waste Management Division's Regulations Pertaining to Solid Waste Sites and Facilities (6 CCR 1007-2, Part 1).

 

SOP 9: Monitor Well Installation pdf file   

 

This Standard Operating Procedure reviews construction practices including decontamination, materials, well screen and associated filter pack selection, and well completion standards to construct a groundwater montior well that will produce accurate groundwater level measurements and representative groundwater samples.  Well installations also require permitting through the Colorado Division of Water Resources (CDWR). The Hazardous Materials and Waste Management Division recommends that the user of SOP 9 also review additional guidance documents and regulatory requirements for well installation available through the Division of Water Resources.

 

Colorado Division of Water Resources - exit this site.

 

SOP 10: Monitor Well Development pdf file   

 

This Standard Operating Procedure reviews responsibilities and standards followed to assure proper well development of any newly installed groundwater montor well or a groundwater monitor well experiencing siltation problems where additional development is appropriate.

 

SOP 11: Equipment Decontamination pdf file   

 

This Standard Operating Procedure describes the techniques used to decontaminate sampling and field measurement equipment.  Proper decontamination ensures that cross-contamination does not occur.

 

SOP 12: Groundwater Sampling pdf file   

 

This Standard Operating Procedure describes the equipment and protocols for sampling groundwater monitor wells.  This procedure outlines methods for well purging, sample collection and filtration when using bailers, submergible pumps and bladder pumps.

 

SOP 13: Water Level Measurements pdf file   

 

This Standard Operating Procedure describes the equipment available and methods used for obtaining accurate water level measurements from groundwater monitor wells.

 

SOP 14: Water Sample Field Measurements pdf file   

 

This Standard Operating Procedure outlines the types of measurements and data requirements associated with the collection of either groundwater or surface water samples.  Accurate measurement of water parameters is required when collecting water samples so that baseline conditions can be established, thus allowing later evaluations of how these parameters may have affected the sample results.