Table 1.  Parameter codes for data compiled on data-set diskette 



[mg/L, milligrams per liter; mS/cm, microsiemens per centimeter at 25 degrees Celsius; 

N, nitrogen; NH4, ammonium ion; NO3, nitrate; P, phosphorus; 

PO4, phosphate; ft3/s, cubic feet per second; CaCO3, calcium carbonate]



Parameter     Definition

mapno      Map reference number

staid      Site identification number

lat        Latitude, degrees

lon        Longitude, degrees

date       Sample date

time       Sample time

name       Site name

nitrate    Nitrate, as N (mg/L); computed ***

ammon      Ammonia, as N (mg/L); computed ***

totaln     Total nitrogen, as N (mg/L); computed ***

phos       Total phosphorus, as P (mg/L); computed ***

ortho      Orthophosphate, as P (mg/L); computed ***

p00608     Nitrogen, ammonia, dissolved (mg/L as N)

p71846     Nitrogen, ammonia, dissolved (mg/L as NH4)

p00610     Nitrogen, ammonia, total (mg/L as N)

p71845     Nitrogen, ammonia, total (mg/L as NH4)

p00613     Nitrogen, nitrite, dissolved (mg/L as N)

p71856     Nitrogen, nitrite, dissolved (mg/L as NO2)

p00615     Nitrogen, nitrite, total (mg/L as N)

p00631     Nitrogen, nitrite plus nitrate, dissolved (mg/L as N)

p00630     Nitrogen, nitrite plus nitrate, total (mg/L as N)

p00618     Nitrogen, nitrate, dissolved (mg/L as N)

p71851     Nitrogen, nitrate, dissolved (mg/L as NO3)

p00620     Nitrogen, nitrate, total (mg/L as N)

p00600     Nitrogen, total (mg/L as N)

p71887     Nitrogen, total (mg/L as NO3)

p00625     Nitrogen, ammonia plus organic, total (mg/L as N)

p00671     Phosphorus, orthophosphate, dissolved (mg/L as P)

p00660     Phosphate, ortho, dissolved (mg/L as PO4)

p70507     Phosphorus, orthophosphate, total (mg/L as P)

p00650     Phosphate, total (mg/L as PO4)

p00665     Phosphorus, total (mg/L as P)

p71886     Phosphorus, total (mg/L as PO4)

p00666     Phosphorus, dissolved (mg/L as P)

temp       Water temperature (Degrees Celsius)

p00060     Discharge (ft3/s)

p00061     Discharge, instantaneous (ft3/s)

sc         Specific conductance (mS/cm)

labsc      Specific conductance, laboratory (mS/cm)

do         Oxygen, dissolved, field (mg/L)

ph         pH, water, whole, field, standard units

labph      pH, water, whole, laboratory, standard units

p00410     Alkalinity, water, whole, total, fixed endpoint titration, field (mg/L as CaCO3)

p90410     Alkalinity, titration to pH 4.5, laboratory (mg/L as CaCO3)

p39086     Alkalinity, water, dissolved, total, incremental titration, field (mg/L as CaCO3)

yr         Year sample collected

mo         Month sample collected

day        Day sample collected

agency     Agency collecting sample



*** Value computed from a related parameter field using method of Mueller and others (1995, p. 7).