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:
P39086 Alkalinity, water, filtered, inflection-point titration method (incremental titration method), field, milligrams per liter as calcium carbonate
P49954 Biomass, periphyton, ash-free dry mass, grams per square meter
P39732 2,4-D, water, filtered, recoverable, micrograms per liter
P39730 2,4-D, water, unfiltered, recoverable, micrograms per liter
P50355 2-Hydroxy-4-isopropylamino-6-ethylamino-s-triazine, water, filtered, recoverable, micrograms per liter
P49299 2-Methyl-4,6-dinitrophenol, water, filtered (0.7 micron glass fiber filter), recoverable, micrograms per liter
P49308 3-Hydroxy carbofuran, water, filtered (0.7 micron glass fiber filter), recoverable, micrograms per liter
P50295 3-Ketocarbofuran, water, filtered, recoverable, micrograms per liter
P49260 Acetochlor, water, filtered, recoverable, micrograms per liter
P49315 Acifluorfen, water, filtered (0.7 micron glass fiber filter), recoverable, micrograms per liter
P46342 Alachlor, water, filtered, recoverable, micrograms per liter
P49313 Aldicarb sulfone, water, filtered (0.7 micron glass fiber filter), recoverable, micrograms per liter
P49314 Aldicarb sulfoxide, water, filtered (0.7 micron glass fiber filter), recoverable, micrograms per liter
P49312 Aldicarb, water, filtered (0.7 micron glass fiber filter), recoverable, micrograms per liter
P39331 Aldrin, water, filtered, recoverable, micrograms per liter
P39330 Aldrin, water, unfiltered, recoverable, micrograms per liter
P39388 alpha-Endosulfan, water, unfiltered, recoverable, micrograms per liter
P39632 Atrazine, water, filtered, recoverable, micrograms per liter
P50299 Bendiocarb, water, filtered, recoverable, micrograms per liter
P50300 Benomyl, water, filtered, recoverable, micrograms per liter
P49311 Bromoxynil, water, filtered (0.7 micron glass fiber filter), recoverable, micrograms per liter
P50305 Caffeine, water, filtered, recoverable, micrograms per liter
P49310 Carbaryl, water, filtered (0.7 micron glass fiber filter), recoverable, micrograms per liter
P39750 Carbaryl, water, unfiltered, recoverable, micrograms per liter
P49309 Carbofuran, water, filtered (0.7 micron glass fiber filter), recoverable, micrograms per liter
P39786 Carbophenothion, water, unfiltered, recoverable, micrograms per liter
P39352 Chlordane (technical), water, filtered, recoverable, micrograms per liter
P39350 Chlordane (technical), water, unfiltered, recoverable, micrograms per liter
P50306 Chlorimuron, water, filtered, recoverable, micrograms per liter
P49306 Chlorothalonil, water, filtered (0.7 micron glass fiber filter), recoverable, micrograms per liter
P49305 Clopyralid, water, filtered (0.7 micron glass fiber filter), recoverable, micrograms per liter
P49304 Dacthal monoacid, water, filtered (0.7 micron glass fiber filter), recoverable, micrograms per liter
P49303 Dichlobenil, water, filtered (0.7 micron glass fiber filter), recoverable, micrograms per liter
P49302 Dichlorprop, water, filtered (0.7 micron glass fiber filter), recoverable, micrograms per liter
P39381 Dieldrin, water, filtered, recoverable, micrograms per liter
P39380 Dieldrin, water, unfiltered, recoverable, micrograms per liter
P49301 Dinoseb, water, filtered (0.7 micron glass fiber filter), recoverable, micrograms per liter
P49300 Diuron, water, filtered (0.7 micron glass fiber filter), recoverable, micrograms per liter
P39391 Endrin, water, filtered, recoverable, micrograms per liter
P39390 Endrin, water, unfiltered, recoverable, micrograms per liter
P39398 Ethion, water, unfiltered, recoverable, micrograms per liter
P49297 Fenuron, water, filtered (0.7 micron glass fiber filter), recoverable, micrograms per liter
P39420 Heptachlor epoxide, water, unfiltered, recoverable, micrograms per liter
P39410 Heptachlor, water, unfiltered, recoverable, micrograms per liter
P50356 Imazaquin, water, filtered, recoverable, micrograms per liter
P50407 Imazethapyr, water, filtered, recoverable, micrograms per liter
P39341 Lindane, water, filtered, recoverable, micrograms per liter
P39340 Lindane, water, unfiltered, recoverable, micrograms per liter
P50359 Metalaxyl, water, filtered, recoverable, micrograms per liter
P49296 Methomyl, water, filtered (0.7 micron glass fiber filter), recoverable, micrograms per liter
P39051 Methomyl, water, unfiltered, recoverable, micrograms per liter
P39602 Methyl parathion, water, filtered, recoverable, micrograms per liter
P39600 Methyl parathion, water, unfiltered, recoverable, micrograms per liter
P39790 Methyl trithion, water, unfiltered, recoverable, micrograms per liter
P50285 Methylmercury, water, filtered, recoverable, nanograms per liter
P39756 Mirex, water, filtered, recoverable, micrograms per liter
P39755 Mirex, water, unfiltered, recoverable, micrograms per liter
P49294 Neburon, water, filtered (0.7 micron glass fiber filter), recoverable, micrograms per liter
P50364 Nicosulfuron, water, filtered, recoverable, micrograms per liter
P49293 Norflurazon, water, filtered (0.7 micron glass fiber filter), recoverable, micrograms per liter
P39327 o,p'-DDE, water, unfiltered, recoverable, micrograms per liter
P49292 Oryzalin, water, filtered (0.7 micron glass fiber filter), recoverable, micrograms per liter
P50410 Oxamyl oxime, water, filtered, recoverable, micrograms per liter
P39361 p,p'-DDD, water, filtered, recoverable, micrograms per liter
P39360 p,p'-DDD, water, unfiltered, recoverable, micrograms per liter
P39366 p,p'-DDE, water, filtered, recoverable, micrograms per liter
P39320 p,p'-DDE, water, unfiltered, recoverable, micrograms per liter
P39365 p,p'-DDE, water, unfiltered, recoverable, micrograms per liter
P39371 p,p'-DDT, water, filtered, recoverable, micrograms per liter
P39370 p,p'-DDT, water, unfiltered, recoverable, micrograms per liter
P39542 Parathion, water, filtered, recoverable, micrograms per liter
P39540 Parathion, water, unfiltered, recoverable, micrograms per liter
P39516 PCBs, water, unfiltered, recoverable, micrograms per liter
P49291 Picloram, water, filtered (0.7 micron glass fiber filter), recoverable, micrograms per liter
P39250 Polychlorinated naphthalenes, water, unfiltered, recoverable, micrograms per liter
P39056 Prometon, water, unfiltered, recoverable, micrograms per liter
P39057 Prometryn, water, unfiltered, recoverable, micrograms per liter
P49236 Propham, water, filtered (0.7 micron glass fiber filter), recoverable, micrograms per liter
P39052 Propham, water, unfiltered, recoverable, micrograms per liter
P39762 Silvex, water, filtered, recoverable, micrograms per liter
P39760 Silvex, water, unfiltered, recoverable, micrograms per liter
P39055 Simazine, water, unfiltered, recoverable, micrograms per liter
P39054 Simetryn, water, unfiltered, recoverable, micrograms per liter
P50337 Sulfometuron, water, filtered, recoverable, micrograms per liter
P50368 Terbutol, water, filtered, recoverable, micrograms per liter
P39401 Toxaphene, water, filtered, recoverable, micrograms per liter
P39400 Toxaphene, water, unfiltered, recoverable, micrograms per liter
P39040 Tribuphos, water, unfiltered, recoverable, micrograms per liter
P49235 Triclopyr, water, filtered (0.7 micron glass fiber filter), recoverable, micrograms per liter
P39741 2,4,5-T, bed sediment, recoverable, dry weight, micrograms per kilogram
P39333 Aldrin, bed sediment, recoverable, dry weight, micrograms per kilogram
P39389 alpha-Endosulfan, bed sediment, recoverable, dry weight, micrograms per kilogram
P39076 alpha-HCH, bed sediment, recoverable, dry weight, micrograms per kilogram
P39787 Carbophenothion, bed sediment, recoverable, dry weight, micrograms per kilogram
P39351 Chlordane (technical), bed sediment, recoverable, dry weight, micrograms per kilogram
P39811 gamma-Chlordane, bed sediment, recoverable, dry weight, micrograms per kilogram
P39571 Diazinon, bed sediment, recoverable, dry weight, micrograms per kilogram
P39383 Dieldrin, bed sediment, recoverable, dry weight, micrograms per kilogram
P39393 Endrin, bed sediment, recoverable, dry weight, micrograms per kilogram
P39399 Ethion, bed sediment, recoverable, dry weight, micrograms per kilogram
P39423 Heptachlor epoxide, bed sediment, recoverable, dry weight, micrograms per kilogram
P39413 Heptachlor, bed sediment, recoverable, dry weight, micrograms per kilogram
P39343 Lindane, bed sediment, recoverable, dry weight, micrograms per kilogram
P39531 Malathion, bed sediment, recoverable, dry weight, micrograms per kilogram
P39791 Methyl trithion, bed sediment, dry weight, recoverable, dry weight, micrograms per kilogram
P39758 Mirex, bed sediment, recoverable, dry weight, micrograms per kilogram
P39311 p,p'-DDD, bed sediment, recoverable, dry weight, micrograms per kilogram
P39363 p,p'-DDD, bed sediment, recoverable, dry weight, micrograms per kilogram
P39321 p,p'-DDE, bed sediment, recoverable, dry weight, micrograms per kilogram
P39368 p,p'-DDE, bed sediment, recoverable, dry weight, micrograms per kilogram
P39301 p,p'-DDT, bed sediment, recoverable, dry weight, micrograms per kilogram
P39373 p,p'-DDT, bed sediment, recoverable, dry weight, micrograms per kilogram
P39481 p,p'-Methoxychlor, bed sediment, recoverable, dry weight, micrograms per kilogram
P39519 PCBs, bed sediment, recoverable, dry weight, micrograms per kilogram
P39251 Polychlorinated naphthalenes, bed sediment, recoverable, dry weight, micrograms per kilogram
P39761 Silvex, bed sediment, recoverable, dry weight, micrograms per kilogram
P50280 Purpose, site visit, codes and descriptions:
blank = not coded
10001 = FIXED FREQUENCY, SURFACE WATER