Chickadee Remediation Company


8810 Will Clayton Parkway,

Suite J


Texas  77338

Phone:  281-540-8711

Fax:  281-540-3893


7801 York Road


Montana  59602

Phone:  406-475-3430

Fax:  406-475-3801


Contact Us


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”

You are visitor number Hit Counter to visit this site.

Send mail to webmaster with questions or comments about this web site.
This site was last updated on January 16, 2009