MEDIM Medium codes and the descriptions are:
0 = Not determined
6 = Ground water (Water below the surface of the earth contained in the saturated zone. This code does not include soil moisture or interstitial water.)
9 = Surface water (Water on the surface of the earth stored or transported in rivers, streams, estuaries, lakes, ponds, swamps, glaciers or other aquatic areas. This code also may refer to water in urban drains and storm-sewer systems.)
SAMPL Record number. Database record number individual to site, date, and time of sample collection.
Station_Nm Station name
The station name for surface-water sites is the same as the local number or local identifier. Example of a station name is North Canadian River near Harrah, OK.
Site_ID Site Identification Number
For surface-water sites, an 8 to 14-digit downstream order number is usually used for the Site ID. When downstream order is used, the first 8 to 14 positions of the field must contain digits. The remaining positions are blank. A Site ID containing a latitude-longitude and sequence number may be assigned to sites where there is difficulty in assigning a meaningful downstream order number, or where data are obtained intermittently. In this case, positions 1-6 are coded with latitude, 7-13 are coded with longitude, and 14-15 are coded with a sequence number. A 15-digit Site ID for a surface-water site most likely indicates a water-quality grab sample site, a surface-water site at which miscellaneous measurements were made, or a site with large open areas like a lake, reservoir, or bay.
STYPE Sample type codes and the descriptions are:
A = Not determined
B = Other QA
H = Composite
1 = Spike
2 = Blank
3 = Reference
4 = Blind
5 = Duplicate
6 = Reference Material
7 = Replicate
8 = Spike solution
9 = Regular
Each parameter code for the following parameter code attributes is preceded by a remark code for that parameter. Example: R00028 is the remark code field for P00028. Remark codes and the descriptions are:
< = Less than. (Actual value is known to be less than the value shown.)
= Greater than. (Actual value is known to be greater than the value shown.)
E = Estimated value. (Value is estimated.)
A = Average value. (Value is an average.)
V = Contamination. (Constituent was detected in both the environmental sample and the associated blanks.)
S = Most probable value.
Values listed for the following fields are reported to the nearest accuracy level of the measurement or analytical method:
P81903 Depth to bottom at sample location, feet
P72019 Depth to water level, feet below land surface
P71820 Density, water, unfiltered, grams per milliliter at 20 degrees Celsius
P72104 Sample location, distance downstream, feet
P72105 Sample location, distance upstream, feet
P72103 Sample location, relative to right bank, looking downstream, feet
P63676 Turbidity, water, unfiltered, broad band light source (400-680 nm), detectors at multiple angles including 90 +/- 30 degrees, ratiometric correction, NTRU
P71825 Acidity, water, unfiltered, heated, milligrams per liter as hydrogen ion
P71830 Hydroxide, water, unfiltered, fixed endpoint (pH 10.4) titration, field, milligrams per liter
P71870 Bromide, water, filtered, milligrams per liter
P71865 Iodide, water, filtered, milligrams per liter
P70301 Residue, water, filtered, sum of constituents, milligrams per liter
P70303 Residue, water, filtered, tons per acre-foot
P70302 Residue, water, dissolved, tons per day
P70300 Residue on evaporation, dried at 180 degrees Celsius, water, filtered, milligrams per liter
P70299 Suspended solids, dried at 110 degrees Celsius, water, milligrams per liter
P71846 Ammonia, water, filtered, milligrams per liter as NH4
P71845 Ammonia, water, unfiltered, milligrams per liter as NH4
P71851 Nitrate, water, filtered, milligrams per liter
P71850 Nitrate, water, unfiltered, milligrams per liter
P71856 Nitrite, water, filtered, milligrams per liter
P71855 Nitrite, water, unfiltered, milligrams per liter
P71887 Total nitrogen, water, unfiltered, milligrams per liter as nitrate
P70507 Orthophosphate, water, unfiltered, milligrams per liter as phosphorus
P71886 Phosphorus, water, unfiltered, milligrams per liter as phosphate
P71840 Oxygen consumed, water, unfiltered, milligrams per liter
P81353 Biomass, plankton, ash weight, milligrams per liter
P81354 Biomass, plankton, dry weight, milligrams per liter
P70950 Biomass/chlorophyll ratio, periphyton, number
P70949 Biomass/chlorophyll ratio, plankton, number
P70957 Chlorophyll a, periphyton, chromatographic-fluorometric method, milligrams per square meter
P70953 Chlorophyll a, phytoplankton, chromatographic-fluorometric method, micrograms per liter
P70958 Chlorophyll b, periphyton, chromatographic-fluorometric method, milligrams per square meter
P70954 Chlorophyll b, phytoplankton, chromatographic-fluorometric method, micrograms per liter
P60050 Phytoplankton, total, cells per milliliter
P71100 Seston, water, unfiltered, total, milligrams per liter
P71885 Iron, water, unfiltered, micrograms per liter
P71895 Mercury, suspended sediment, recoverable, micrograms per liter
P71890 Mercury, water, filtered, micrograms per liter
P71900 Mercury, water, unfiltered, recoverable, micrograms per liter
P71921 Mercury, bed sediment, recoverable, dry weight, micrograms per gram
P77441 1-Naphthol, water, unfiltered, recoverable, micrograms per liter
P50470 2,4-D methyl ester, water, filtered, recoverable, micrograms per liter
P75981 2-Chloro-4-isopropylamino-6-amino-s-triazine, water, unfiltered, recoverable, micrograms per liter
P75980 2-Chloro-6-ethylamino-4-amino-s-triazine, water, unfiltered, recoverable, micrograms per liter
P82584 3-Hydroxy carbofuran, water, unfiltered, recoverable, micrograms per liter
P77825 Alachlor, water, unfiltered, recoverable, micrograms per liter
P82587 Aldicarb sulfone, water, unfiltered, recoverable, micrograms per liter
P82586 Aldicarb sulfoxide, water, unfiltered, recoverable, micrograms per liter
P82354 alpha-Endosulfan, water, filtered, recoverable, micrograms per liter
P82184 Ametryn, water, unfiltered, recoverable, micrograms per liter
P61693 Bensulfuron-methyl, water, filtered, recoverable, micrograms per liter
P82615 Carbofuran, water, unfiltered, recoverable, micrograms per liter
P82342 Carbophenothion, water, filtered, recoverable, micrograms per liter
P61188 Chloramben methyl ester, water, filtered, recoverable, micrograms per liter
P81757 Cyanazine, water, unfiltered, recoverable, micrograms per liter
P82356 Dichlorprop, water, filtered, recoverable, micrograms per liter
P82183 Dichlorprop, water, unfiltered, recoverable, micrograms per liter
P82346 Ethion, water, filtered, recoverable, micrograms per liter
P61694 Flumetsulam, water, filtered, recoverable, micrograms per liter
P82614 Fonofos, water, unfiltered, recoverable, micrograms per liter
P61695 Imidacloprid, water, filtered, recoverable, micrograms per liter
P61696 Methomyl oxime, water, filtered, recoverable, micrograms per liter
P82344 Methyl trithion, water, filtered, recoverable, micrograms per liter
P82612 Metolachlor, water, unfiltered, recoverable, micrograms per liter
P82611 Metribuzin, water, unfiltered, recoverable, micrograms per liter
P61697 Metsulfuron, water, filtered, recoverable, micrograms per liter
P61692 N-(4-Chlorophenyl)-N'-methylurea, water, filtered, recoverable, micrograms per liter
P82613 Oxamyl, water, unfiltered, recoverable, micrograms per liter
P82348 p,p'-Ethyl-DDD, water, filtered, recoverable, micrograms per liter
P82350 p,p'-Methoxychlor, water, filtered, recoverable, micrograms per liter
P82360 Polychlorinated naphthalenes, water, filtered, recoverable, micrograms per liter
P50471 Propiconazole, water, filtered, recoverable, micrograms per liter
P61159 Tribenuron, water, filtered, recoverable, micrograms per liter
P81886 p,p'-Ethyl-DDD, bed sediment, recoverable, dry weight, micrograms per kilogram
P62979 Methylmercury, solids, total, dry weight, nanograms per gram
P82082 Deuterium/Protium ratio, water, unfiltered, per mil
P82068 Potassium-40, water, filtered, picocuries per liter
P76001 Radium-226 2-sigma combined uncertainty, water, filtered, picocuries per liter
P76002 Radon-222 2-sigma combined uncertainty, water, unfiltered, picocuries per liter
P82303 Radon-222, water, unfiltered, picocuries per liter
P82085 Oxygen-18/Oxygen-16 ratio, water, unfiltered, per mil
P70337 Suspended sediment, fall diameter (deionized water), percent smaller than 0.002 millimeter
P70338 Suspended sediment, fall diameter (deionized water), percent smaller than 0.004 millimeter
P70339 Suspended sediment, fall diameter (deionized water), percent smaller than 0.008 millimeter
P70340 Suspended sediment, fall diameter (deionized water), percent smaller than 0.016 millimeter
P70341 Suspended sediment, fall diameter (deionized water), percent smaller than 0.031 millimeter
P70342 Suspended sediment, fall diameter (deionized water), percent smaller than 0.063 millimeter
P70343 Suspended sediment, fall diameter (deionized water), percent smaller than 0.125 millimeter
P70344 Suspended sediment, fall diameter (deionized water), percent smaller than 0.25 millimeter
P70345 Suspended sediment, fall diameter (deionized water), percent smaller than 0.5 millimeter
P70346 Suspended sediment, fall diameter (deionized water), percent smaller than 1 millimeter
P70331 Suspended sediment, sieve diameter, percent smaller than 0.063 millimeter
P70332 Suspended sediment, sieve diameter, percent smaller than 0.125 millimeter
P70333 Suspended sediment, sieve diameter, percent smaller than 0.25 millimeter
P70334 Suspended sediment, sieve diameter, percent smaller than 0.5 millimeter
P70335 Suspended sediment, sieve diameter, percent smaller than 1 millimeter
P80154 Suspended sediment concentration, milligrams per liter
P80155 Suspended sediment discharge, tons per day
P80164 Bed sediment, dry sieved, sieve diameter, percent smaller than 0.063 millimeter
P80165 Bed sediment, dry sieved, sieve diameter, percent smaller than 0.125 millimeter
P80166 Bed sediment, dry sieved, sieve diameter, percent smaller than 0.25 millimeter
P80167 Bed sediment, dry sieved, sieve diameter, percent smaller than 0.5 millimeter
P80168 Bed sediment, dry sieved, sieve diameter, percent smaller than 1 millimeter
P80169 Bed sediment, dry sieved, sieve diameter, percent smaller than 2 millimeters
P80170 Bed sediment, dry sieved, sieve diameter, percent smaller than 4 millimeters
P80171 Bed sediment, dry sieved, sieve diameter, percent smaller than 8 millimeters
P80172 Bed sediment, dry sieved, sieve diameter, percent smaller than 16 millimeters
P80173 Bed sediment, dry sieved, sieve diameter, percent smaller than 32 millimeters
P80158 Bed sediment, fall diameter (deionized water), percent smaller than 0.063 millimeter
P80159 Bed sediment, fall diameter (deionized water), percent smaller than 0.125 millimeter
P80160 Bed sediment, fall diameter (deionized water), percent smaller than 0.25 millimeter
P80161 Bed sediment, fall diameter (deionized water), percent smaller than 0.5 millimeter
P80162 Bed sediment, fall diameter (deionized water), percent smaller than 1 millimeter
P80163 Bed sediment, fall diameter (deionized water), percent smaller than 2 millimeters
P71999 Sample purpose, codes and descriptions:
0 = NOT CODED
10 = ROUTINE
15 = NAWQA
20 = NASQAN
P82398 Sampling method, codes and descriptions:
0 = NOT CODED
10 = EQUAL-WIDTH INCREMENT
20 = EQUAL-DISCHARGE INCREMENT
50 = POINT SAMPLE
60 = WEIGHTED BOTTLE
70 = GRAB SAMPLE (DIP)
230 = BENTHIC INVERTEBRATE-ARTIFICIAL SUBSTRATE
4010 = THIEF SAMPLE
8010 = OTHER