Chickadee Remediation Company

TEXAS

8810 Will Clayton Parkway,

Suite J

Humble,

Texas  77338

Phone:  281-540-8711

Fax:  281-540-3893

MONTANA

7801 York Road

Helena,

Montana  59602

Phone:  406-475-3430

Fax:  406-475-3801

 

Contact Us

CALIFORNIA

5200 Warner Avenue,

Suite 207

Huntington Beach,

California  92649

Phone:  714-840-8036

Fax:  714-840-6843

               

 

 

Abstract    (Go to Manuscript)

 

Contaminated Groundwater: Analytical, QAQC, Detection Limits

 

By Richard Sloan, Chickadee Remediation Company

 

Groundwater has been contaminated at many locations due to spills and leaks of chemicals and other contaminants. Unfortunately metals, chlorinated solvents, gasoline components, pesticides, etc. are frequently detected in groundwater. In many cases it is necessary to define the nature and extent of the groundwater plumes and to take remedial response action to reduce the public health and environmental risks to acceptable levels.

 

The site assessment and remedial response process is driven by sampling and analysis of the affected media (typically air, soil, sediments, and water). From the initial "discovery" to the final site "closure" analytical controls the entire process.

 

This paper uses recent actual site examples to discuss the sampling analytical and QAQC issues involved in each step of the site assessment and remedial response process.

 

The process steps are:  

·        Determine Chemicals of Concern (COC’S)

·        Risk-based critical chemicals

·        Sampling and Analysis Plan

·        COC detection limits per process step

·        QAQC requirements for process steps

·        Analytical variability

·        Risk-based critical chemicals

·        Responsive data base management

·        Data “scatter” verses “progress trends”

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This site was last updated on January 16, 2009