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TextDatabase explanation
Explanation of the DATABASE Structure and FIELDS used in
Fairfax County's Annual Stream Report
(1986 - 2002)
DATABASES:
There are two databases in the zip files:
Chemical results : CHEMXXXX.dbf where XXXX
is the year of the results
Coliform results : COLIXXXX.dbf where XXXX
is the year of the results.
FIELDS in the databases are outlined below according to database. See the Annual Stream Reports for explanation of tested parameters.
-
CHEMICAL DATABASES- Fields
WATERSHED - The watershed ID number as assigned by the Health Department. Watershed KEY.
STANUM - The Station Number of the sampling site within the watershed.
DATE - Date sample collected.
SAMPLENUM - Id number from the laboratory for tracking purposes.
TEMP - Water temperature of the sample at the time of collection in Fahrenheit.
DO -Dissolved Oxygen.
NO - Nitrate Nitrogen
PH - pH value of sample.
PO - Total Phosphorus
COLBY - sampling technician’s initials.
STRFLOW - Site evaluation of the stream flow by sampling technician.
BN= Below normal flow NM=Normal flow AN=Above Normal Flow. Note: this was discontinued in 1998.
WEATHER - O= Overcast C= Clear
AIRTEMP - Temperature of air in Fahrenheit
TRANSFER- no data -
COLIFORM - Fields
WATERSHED - The watershed ID number as assigned by the Health Department. Watershed KEY.
STANUM - The Station Number of the sampling site within the watershed.
DATE - Date sample collected.
FCOLI - Fecal Coliform value range 99 - 6,000 f.c./100ml
TRANSFER- no data
SAMPLENUM - Id number from the laboratory for tracking purposes.
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