Record Display for the EPA National Library Catalog


Main Title National Surface Water Survey: Eastern Lake Survey - Phase 2 Northeastern Lakes, Database Dictionary.
Author Jimenez, M. M. ; Johnson, R. G. ; Myers, T. C. ; Whittier, T. R. ; Herlihy, A. T. ;
CORP Author Systems Applications, Inc., San Rafael, CA. ;ManTech Environmental Technology, Inc., Corvallis, OR. ;Utah State Univ., Logan.;Corvallis Environmental Research Lab., OR.
Publisher 15 Mar 91
Year Published 1991
Report Number EPA-68-03-3439 ;EPA-68-C8-0006;
Stock Number PB91-179093
Additional Subjects Lakes ; Information systems ; Seasonal variations ; Water pollution effects ; Dictionaries ; Surface waters ; Data base management ; Chemical properties ; Physical properties ; Water chemistry ; Spring season ; Summer ; Autumn ; Error analysis ; Acid neutralizing capacity ; Hydrologic data ; Northeast Region(United States) ; Eastern Lake Survey ; National Acid Precipitation Assessment Program
Library Call Number Additional Info Location Last
NTIS  PB91-179093 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 74p
The purpose of the data dictionary is to provide information pertaining to the contents and structure of the Eastern Lakes Survey-Phase II (ELS-II) chemistry database. The data dictionary does not describe the design, protocols, or findings of the study, which are described in Herlihy et al. (1991). Section 2 describes the overall design and development of the ELS-II database. Section 3 is a summary of data quality. Section 4 identifies all variables in the database, and Section 5 provides detailed definitions of the variables. Section 6 describes 'tags' and 'flags' which are two types of data qualifiers.