Record Display for the EPA National Library Catalog
RECORD NUMBER: 334 OF 2071
|OLS Field Name||OLS Field Data|
|Main Title||Comparison of manual (grab) and vacuum type automatic sampling techniques on an individual and composite sample basis.|
|CORP Author||National Field Investigations Center-Denver, Colo.|
|Publisher||U.S. Environmental Protection Agency, Office of Enforcement,|
|Stock Number||PB-257 633|
|Subjects||Water--Pollution--Sampling. ; Sewage.|
|Additional Subjects||Samplers ; Sewage ; Monitoring ; Field testing ; Water analysis ; Design criteria ; Performance evaluation ; Waste water ; Statistical analysis ; Water pollution sampling ; Serco automatic samplers|
|Collation||1 volume (various pagings) : illustrations, graphs ; 28 cm|
The National Field Investigations Center-Denver (NFIC-D) has been engaged in water quality and waste source evaluation studies since its inception. Due to the magnitude of the surveys, NFIC-D often has relied upon automatic samplers, particularly the SERCO, to collect samples of the wastewater streams. These samplers are used to collect water samples over specified periods for subsequent compositing; individual grab samples are collected manually. With the advent of compliance monitoring, the use of automatic samplers is expected to increase. Data provided by the manufacturer show that the automatic and manual sampling methods are equivalent. To confirm that the sampling methods are equivalent, NFIC-D conducted studies at a local wastewater treatment plant (WWTP) and statistically evaluated the results. This paper presents the results of these studies.
Appendices included. EPA-330/1-74-001 "September 1974."
Introduction -- Summary and conclusions -- SERCO automatic sampler -- Field study procedure -- Statistical approach -- Statistical analysis of data -- Additional data evaluation -- Discussion.