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Retrospective Database for Nutrients in Ground Water and Surface Water

Header and several example records for the ground-water nutrient retrospective database

This ground-water nutrient retrospective database was compiled by
Pixie Hamilton in 1994 from data and information provided by NAWQA
study units that began in 1991.  Dave Mueller, Barb Ruddy, and Tom
Nolan periodically modified the database from August 1995 to April
1996.  This file was last modified on April 26, 1996.

See World Wide Web site
http:/water.usgs.gov/nawqa/nutrients/datasets/retrodesc.html
for more information on this retrospective data set.

NOTE:  Missing values are represented by a decimal point.

Variable position and description:

COLUMN NUMBERS	   DESCRIPTION
-----------------------------------------------------------------------------------------------------------------------------
1-9 		   NAWQA study unit or other USGS project:
			ACFB = Apalachicola-Chattahoochee-Flint River Basin      		 	
			ALBE = Albemarle-Pamlico Drainage                        
			CCPT = Central Columbia Plateau                          
			CNBR = Central Nebraska Basins                           
			CONN = Connecticut, Housatonic, and Thames River Basins  
			GAFL = Georgia-Florida Coastal Plain                     
			HDSN = Hudson River Basin                                
			LSUS = Lower Susquehanna River Basin                     
			NVBR = Nevada Basin and Range                            
			OZRK = Ozark Plateaus                                    
			POTO = Potomac River Basin                               
			RIOG = Rio Grande Valley                                 
			SANJ = San Joaquin-Tulare Basins                         
			SPLT = South Platte River Basin                          
			TRIN = Trinity River Basin                               
			USNK = Upper Snake River Basin                           
			WMIC = Western Lake Michigan Drainages                   
			WHIT = White River Basin
			DELM = Delmarva Peninsula
			KANS = Kansas Toxics study area
			LONG = Long Island Toxics study area
			MIDC = Midcontinent Toxics study area
			NEBR = Nebraska Toxics study area
10-29		   Well site identifier
30-39		   Latitude (degrees, minutes, seconds)
40-49		   Longitude (degrees, minutes, seconds)
50-59		   Use of water (PUBLIC = public supply, DOMESTIC = domestic, IRRIG = irrigation, STOCK = livestock)
60-69		   Well depth below land surface (feet)
70-79		   Depth to water below land surface (feet)
80-89		   State-based geographic region
			NE = Northeastern States
			SE = Appalachian and Southeastern States
		   	PLAINS = Northern and Southern Plains States
			WEST = Pacific States
			CORN = Cornbelt States
			MOUNT = Mountain States
			LAKE = Lake States
90-99		   Soil hydrologic group (source: U.S. Soil Conservation Service State Soil Geographic (STATSGO)
		     Database; original categorical variable A - D converted to continuous variable ranging from 1 to 4
		     1=A (well drained), 2=B (moderately well drained), 3=C (poorly drained), 4=D (very poorly drained)
100-109		   Lithologic description of aquifer
			UNCN = unconsolidated sand and gravel
			SOIL = soil
			BSLT = basalt
			ALVM = alluvium
			TILL = glacial till
			CARB = carbonate bedrock
			BDRK = other bedrock, such as sandstone, shale, or crystalline bedrock
110-119		   Anderson level I land use category
			AGRIC = agricultural land
			WOODS = forest land
			RANGE = rangeland
			URBAN = urban or built-up land
			OTHER = other landuse, such as wetland
120-129		   Population density (number of people per square kilometer) in census block group in which well is
		     located (source:  U.S. Bureau of Census, 1990 Census of Population and Housing)
130-139		   Federal Information Processing Standard (FIPS) Code (first two digits are state, second three digits
		     are county)
140-149		   Atmospheric deposition of nitrogen (tons per square mile) (source: National Atmospheric Deposition
		     Program/National Trends Network)
150-159		   Fertilizer nitrogen input (tons per square mile) (source: Environmental Protection Agency
		     county-level fertilizer sales data)
160-169		   Manure nitrogen input (tons per square mile) (source: U.S. Bureau of Census, Census of Agriculture
		     animal population data)
170-179		   Sum of nitrogen input from fertilizer, manure, and atmospheric sources (tons per square mile)
180-189		   Ratio of pasture to cropland (source: Census of Agriculture county landuse pecentages)
190-199		   Ratio of woodland to cropland (source: Census of Agriculture county landuse pecentages)
200-209		   Year that well was sampled
210-219		   Ammonia as N (milligrams per liter)
220-229		   Nitrate as N ( milligrams per liter)
230-239		   Orthophosphate as P (milligrams per liter)
240-249		   Total phosphorus (milligrams per liter)
*****************************************************************************************************************************
ACFB     02358508            303905    844227    .                .         .  SE             2.4  .         WOODS       12.730     12039     1.071     3.396     0.813     5.280    0.6447    0.8000      1973       .        0.02       .         .  
ACFB     02358795            304725    850827    .                .         .  SE             2.1  .         WOODS       22.638     12063     1.071     6.765     2.448    10.284    0.4191    0.3875      1985      0.01      1.75       .        0.02
ACFB     294327084585501     294327    845855    .                .         .  SE             1.6  .         URBAN      475.520     12037     1.073     0.000     0.001     1.074     .         .          1985      0.64      0.01       .        0.03
ACFB     294339084591901     294339    845919    PUBLIC           .         .  SE             1.6  .         URBAN      848.552     12037     1.073     0.000     0.001     1.074     .         .          1976      0.34      0.03       .        0.20
ACFB     294702084495303     294702    844953    .               27         .  SE             3.8  .         URBAN        1.164     12037     1.073     0.000     0.001     1.074     .         .             .       .        0.04      0.01       .  
ACFB     295046084394301     295046    843943    .               93         .  SE             1.6  .         URBAN       33.580     12037     1.073     0.000     0.001     1.074     .         .             .       .        1.70       .        0.04
ACFB     295150084405201     295150    844052    DOMESTIC        65         .  SE             4.0  .         OTHER        1.164     12037     1.073     0.000     0.001     1.074     .         .          1981      0.43      0.02       .        0.06

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