Water Resources--Office of Water Quality
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By D.B. Radtke
Water samples should be processed within vehicles that are designed, designated, prepared, and dedicated for that purpose. If a multiple-use vehicle must be used for water-quality work, then use of portable processing and preservation chambers is mandatory, and additional quality-control samples must be collected to document that the quality of the data has not been compromised. Contamination of some target analytes is much more likely when multiple-use vehicles are used for collection of water-quality data.
Whether using a field vehicle dedicated for water-quality work or a multi-use vehicle, every effort must be made to keep the work area clean and to eliminate sources of sample contamination.
|Keep metallic objects, such as surface-water and ground-water sampling support equipment, out of the inorganic sample-processing and -preservation area.|
|Install a dustproof barrier between the vehicle's cab and the sample-processing and -preservation area.|
|Cover metal surfaces (cabinets or shelving that cannot be replaced) with plastic sheeting. Replace the sheeting periodically.|
|Store chemical substances so that chemical fumes will not enter the sample-processing and -preservation area.|
For additional discussions of field-vehicle recommendations and requirements, refer to Horowitz and others (1994), Shelton (1994), and Koterba and others (1995).
|SAFETY REQUIREMENT: Store acids, bases, and solvents in separate storage areas so that the chemicals cannot mix if a spill occurs (NFM 9).|
Section 2.4 List of Equipment and Supplies
Return to Section 2.2 Sample Processing
Return to Complete Contents for Chapter A2
Return to Field Manual Complete Contents
Return to Water Quality Information Pages
Maintainer: Office of Water Quality
Webversion by: Genevieve Comfort
Last Modified: Monday, 18-Jun-2007 15:51:16 EDT