Upper Midwest Environmental Sciences Center
WATER QUALITY LIABILITY DISCLAIMER AND FORMAT DESCRIPTION
Disclaimer
These data have been generated by State agencies under contract with the
Department of the Interior and the Upper Midwest Environmental Sciences Center
(UMESC). Although these data have been processed successfully on a computer
system at the UMESC, no warranty, expressed or implied, is made regarding the
accuracy or utility of the data on any other system or for general or
scientific purposes, nor shall the act of distribution constitute any such
warranty. Error correction is a continuing process, and UMESC corrects data
data errors routinely when a correct value can be determined. UMESC does not
delete questionable data when the correct value cannot be determined, but
attempts to mark such data with an appropriate flag. Users are strongly
cautioned to check the accuracy of any data obtained and to report suspected
values to UMESC. Methods, purposes, and conditions can vary dramatically
among data-collecting efforts and these data should not be combined with other
datasets from the UMESC or other sources unless the user fully understands the
procedures and purposes used to create each set of data and can verify that
data are comparable across sources.
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Crediting Language
These data are a product of the U.S. Army Corps of Engineers' Upper Mississippi
River Restoration Program (UMRR) Long Term Resource Monitoring (LTRM) element
implemented by the U.S. Geological Survey in collaboration with the five
Upper Mississippi River System (UMRS) states of Illinois, Iowa, Minnesota,
Missouri, and Wisconsin. The U.S. Army Corps of Engineers (Corps)
provides guidance and has overall program responsibility.
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WATER QUALITY TREND ANALYSIS DATA
The Long Term Resource Monitoring Program (LTRMP) sampling effort has evolved
steadily since its inception in 1988.
Three LTRMP field stations began taking limnological measurements in Pools 8,
13, and 26 of the Upper Mississippi River in the summer of 1988. Sampling in
La Grange Pool of the Illinois River began in September 1989. A few months
later (January 1990), LTRMP water quality sampling commenced in Pool 4 (Lake
Pepin), and a year later (March 1991), sampling was begun on the open river
reach near Cape Girardeau, Missouri. All six field stations have operated
continuously since joining the LTRMP.
As the LTRMP field stations have grown, the parameters measured in water
quality monitoring have gradually expanded. From 1988 to 1991, the LTRMP
limnological sampling effort was limited to a basic suite of field
measurements that required no laboratory analysis. A limited suite of
laboratory analyses was added to the water quality effort in 1991 (these
samples were analyzed by the U.S. Army Corps of Engineers Waterways Experiment
Station, in Vicksburg, Mississippi). In 1993, the LTRMP developed an interna
analytical lab, and the list of parameters was further expanded. Some
reduction in parameters is possible in 1996, but this decision is still
pending.
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FOREWARD
Use of LTRMP Trend Data for Water Quality Monitoring
The LTRMP performs basic limnological field measurements in the Upper
Mississippi River System (UMRS). Correct interpretation of the resulting
measurements requires that the user understand the design, intent, and history
of the sampling effort. Some of the necessary information is provided below,
but all users of LTRMP limnological data are strongly encouraged to read and
understand the Water Quality section of the LTRMP Procedures Manual (Soballe
et al. 1995), which describes in greater detail both historical and current
procedures. This document is accessible by request from:
Water Quality Coordinator
Upper Midwest Environmental Sciences Center
U.S. Geological Survey
2630 Fanta Reed Road
La Crosse, WI 54603
USA
Tel: (608) 781-6216, ext. 126
Fax: (608) 783-6066
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SUMMARY
LTRMP Water Quality Sampling Design
The basic design of the sampling effort was revised in 1993. From July 1988
through June 1993, the LTRMP performed weekly limnological measurements at
15-30 permanently fixed sampling locations in each study area. These sampling
locations were chosen without randomization (or replicaton) to represent 23
general habitat types and typical river reaches in the UMRS. This approach did
not meet the needs of the program, and in June 1993, a new sampling design was
implemented which incorporated both fixed-site sampling (at a revised set of
sampling sites on a bi-weekly basis), stratified random sampling (on a
quarterly basis), and an expanded set of measurements. Fixed-site sampling is
now used to monitor tributaries, headwaters, tailwaters, and other points of
special interest. Randomized sampling is used to characterize broad aquatic
(habitat) areas.
Special care is required to combine current data with data from the period
prior to this design change. Interpretation of the stratified random sampling
data collected after June 1993 also requires additional information. Users
are strongly encouraged to consult the LTRMP procedures manual(s) and UMESC
staff to determine the applicability of these data to specific applications.
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REFERENCES
Soballe, D. M., R. Burkhardt, K. Lubinski, R. Burdis, T. Clemment, J. Fischer,
L. Hodge-Richardson, L. Conaway, J. Frazier, D. Gould, M. Steuck, E. Ratcliff,
M. Sitzes, S. Stenzel, and R. Wright. 1995. Long Term Resoure Monitoring
Program Procedures: Water Quality Monitoring. U.S. Geological Survey,
Biological Resources Divsion, Upper Midwest Environmental Sciences Center,
La Crosse, Wisconsin (in press).
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WATER QUALITY FIXED FORMAT FILE DOWNLOAD FILE
The fixed format file has all the data aligned to a specific column within the dataset.
Every field will start and end exactly in the same location. No field names are specified
in this format.
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THE "FORMAT" COLUMN CONTAINS THE FOLLOWING FORMAT SPECIFIERS:
"a": alpha character (always UPPER case);
"b": a blank space;
"blank": a missing value;
"c": alpha character/symbol/digit;
"c(xx)": character string where xx represents
the maximum number of characters allowed;
"9": any digit, 0 - 9;
"MM/DD/YYYY": date format;
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Field Name Short Name Format Value Range/Default Value Historical Info
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BARCODE SHEETBAR 99999999 1 - 99999999 1993 TO PRESENT
FIELD_STATION_NUMBER FLDNUM 9 1,2,3,4,5,6 1988 TO PRESENT
DATE_TIME DATE MM/DD/YYYY 05/01/1992 - TO PRESENT 1988 TO PRESENT
TIME_ONLY TIME HH:MI 00:00 - 23:59 1988 TO PRESENT
NUMBER_OF_RECORDS NSAMPLES 9 1 - 6 1993 TO PRESENT
PROJECT_CODE PROJCD c-ccc SEE FIELD DESCRIPTIONS 1993 TO PRESENT
LOCATION_CODE LOCATCD a999.9a SEE FIELD DESCRIPTIONS 1988 TO PRESENT
DBLKCD DATABLCK a999999 SEE FIELD DESCRIPTIONS 1989 TO PRESENT
WAVE_HEIGHT WAVHI 999 0 - 999 1988 TO PRESENT
WAVE_HEIGHT_QF WAVEHIQF c blank,0,1,2,3,4,5,6,7,8,A,C,D,H,1993 TO PRESENT
WATER_DEPTH WDP 99.99 0 - 99.99 1988 TO PRESENT
WATER_DEPTH_QF ZMAXQF c blank,0,1,2,3,4,5,6,7,8,A,C,D,H,1993 TO PRESENT
ZMAX ZMAX 99.99 0 - 99.99 1988 TO PRESENT
SECCHI_DISK SECCHI 999 0 - 999 1988 TO PRESENT
SECCHI_DISK_QF SECCHIQF c blank,0,1,2,3,4,5,6,7,8,A,C,D,H,1993 TO PRESENT
WAVE_CODE WAVCD 9 0,1,2,3,4 1993 TO PRESENT
ICE_DEPTH ZICE 999.9 0 - 999.9 1990 TO PRESENT
ICE_DEPTH_QF ZICEQF c blank,0,1,2,3,4,5,6,7,8,A,C,D,H,1993 TO PRESENT
SUB_ICE_DEPTH ZSICE 999 0 - 999 1993 TO PRESENT
SUB_ICE_DEPTH_QF ZSICEQF c blank,0,1,2,3,4,5,6,7,8,A,C,D,H,1993 TO PRESENT
ICE_COVER_PERCENT PICE 999 0 - 100 1990 TO PRESENT
ICE_COVER_PERCENT_QF PICEQF c blank,0,1,2,3,4,5,6,7,8,A,C,D,H,1993 TO PRESENT
SNOW_DEPTH ZSNOW 999.9 0 - 999.9 1990 TO PRESENT
SNOW_DEPTH_QF ZSNOWQF c blank,0,1,2,3,4,5,6,7,8,A,C,D,H,1993 TO PRESENT
SNOW_COVER_PERCENT PSNOW 999 0 - 100 1990 TO PRESENT
SNOW_COVER_PERCENT_QF PSNOWQF c blank,0,1,2,3,4,5,6,7,8,A,C,D,H,1993 TO PRESENT
SITE_TYPE SITETYPE 9 0,1,2,3 1994 TO PRESENT
STRATUM_TYPE STRATUM 9 1,2,3,4,5,6,7 1988 TO PRESENT
SUMMARY_CODE SUMCD 9 1,2,3,4,5 1993 TO PRESENT
SUBSTRATE_CODE SBSTRATE 9 0,1,2,3,4 1993 TO PRESENT
COVERAGE_CODE VEGCOVER 9 0,1,2,3 1993 TO PRESENT
VEG_DENSITY VEGDENS 9 1,2 1993 TO PRESENT
VEG_TYPE VEGTYPE a S,E,B,C 1993 TO PRESENT
METHOD METHOD 9 1,2,3,4 1993 TO PRESENT
UTM_ZONE UTMZONE 99 15,16 1993 TO PRESENT
COORDINATES_NORTH_SOUTH NORTHING 9999999 0 - 9999999 1993 TO PRESENT
COORDINATES_EAST_WEST EASTING 9999999 0 - 9999999 1993 TO PRESENT
GIS_GRID_CODE GRIDCODE 99999.99999 SEE FIELD DESCRIPTIONS 1988 TO PRESENT
ZONE15_NORTH_SOUTH Z15NORTH 9999999 0 - 9999999 1988 TO PRESENT
ZONE15_EAST_WEST Z15EAST 9999999 0 - 9999999 1988 TO PRESENT
FIELD_DERIVED_EASTING FLDEAST 9999999 0 - 9999999 1993 TO PRESENT
FIELD_DERIVED_NORTHING FLDNORTH 9999999 0 - 9999999 1993 TO PRESENT
EMTC_DERIVED_EASTING DRVEAST 9999999 0 - 9999999 1993 TO PRESENT
EMTC_DERIVED_NORTHING DRVNORTH 9999999 0 - 9999999 1993 TO PRESENT
ACCURACY ACCURACY 999.9 0 - 999.9 1993 TO PRESENT
SAMPLE_TYPE SAMPTYPE c blank,1 1992 TO PRESENT
STAGE_READING STAGE 999.9 0 - 999.9 1993 TO PRESENT
RECORDER_CODE RCRDCODE cccc SEE FIELD DESCRIPTIONS 1993 TO PRESENT
CREW_LEADER_CODE LDRCODE cccc SEE FIELD DESCRIPTIONS 1988 TO PRESENT
SITE_COMMENT COMMENT c(240) SEE FIELD DESCRIPTIONS 1988 TO PRESENT
ROW_SEQUENCE_NUMBER ROWNUM 9 1 - 6 1992 TO PRESENT
SAMPLE_DEPTH Z 99.9 0 - 99.9 1988 TO PRESENT
SAMPLE_DEPTH_QF ZQF c blank,0,1,2,3,4,5,6,7,8,A,C,D,H,1993 TO PRESENT
SAMPLE_DEPTH_CODE SAMPZCD aa SF,BT,MD,OT 1988 TO PRESENT
CALC_SAMPLE_DEPTH_CODE CALCZCD aa SF,BT,MD,OT 1988 TO PRESENT
WATER_TEMP TEMP 99.9 0 - 99.9 1988 TO PRESENT
WATER_TEMP_QF TEMPQF c blank,0,1,2,3,4,5,6,7,8,A,C,D,H,1993 TO PRESENT
DISLV_OXYGEN DO 99.9 0 - 99.9 1988 TO PRESENT
DISLV_OXYGEN_QF DOQF c blank,0,1,2,3,4,5,6,7,8,A,C,D,H,1993 TO PRESENT
PH PH 99.99 0 - 99.9 1991 TO PRESENT
PH_QF PHQF c blank,0,1,2,3,4,5,6,7,8,A,C,D,H,1993 TO PRESENT
TURBIDITY TURB 9999 0 - 9999 1988 TO PRESENT
TURBIDITY_QF TURBQF c blank,0,1,2,3,4,5,6,7,8,A,C,D,H,1993 TO PRESENT
SPECIFIC_CONDUCTIVITY COND 9999 0 - 9999 1988 TO PRESENT
SPECIFIC_CONDUCTIVITY_QF CONDQF c blank,0,1,2,3,4,5,6,7,8,A,C,D,H,1993 TO PRESENT
WATER_VEL VEL 9.99 0 - 9.99 1988 TO PRESENT
WATER_VEL_QF VELQF c blank,0,1,2,3,4,5,6,7,8,A,C,D,H,1993 TO PRESENT
WATER_CURRENT_DIRECTION DIR 999 0 - 360 1989 TO PRESENT
WATER_CURRENT_DIRECTION_QF DIRQF c blank,0,1,2,3,4,5,6,7,8,A,C,D,H,1993 TO PRESENT
SAMPLE_BARCODE SMPLBAR 99999999 0 - 99999999 1993 TO PRESENT
SNP_SAMPLE_FLAG SNPCODE c blank,1,4,5,6,7,8,A,H,X 1993 TO PRESENT
NOX_SAMPLE_FLAG NOXCODE c blank,1,4,5,6,7,8,A,H,X 1993 TO PRESENT
MET_SAMPLE_FLAG METCODE c blank,1,4,5,6,7,8,A,H,X 1991 TO PRESENT
CL_SAMPLE_FLAG CLCODE c blank,1,4,5,6,7,8,A,H,X 1993 TO PRESENT
SS_SAMPLE_FLAG SSCODE c blank,1,4,5,6,7,8,A,H,X 1993 TO PRESENT
CHS_SAMPLE_FLAG CHSCODE c blank,1,4,5,6,7,8,A,H,X 1993 TO PRESENT
CHF_SAMPLE_FLAG CHFCODE c blank,1,4,5,6,7,8,A,H,X 1993 TO PRESENT
PYT_SAMPLE_FLAG PYTCODE c blank,1,4,5,6,7,8,A,H,X 1993 TO PRESENT
TNP_SAMPLE_FLAG TNPCODE c blank,1,4,5,6,7,8,A,H,X 1993 TO PRESENT
REPORT_CODE RPTCODE 9 1 - 5 1988 TO PRESENT
SOLUBLE_REACTIVE_PHOSPHORUS SRP 9999.999 0 - 9999.999 1991 TO PRESENT
SOLUBLE_REACTIVE_PHOSPHORUS_QF SRPQF 99999 0 - 65536 1991 TO PRESENT
TOTAL_SOLUBLE_PHOSPHORUS TSP 9999.999 0 - 9999.999 1991 TO PRESENT
TOTAL_SOLUBLE_PHOSPHORUS_QF TSPQF 99999 0 - 65536 1991 TO PRESENT
TOTAL_PHOSPHORUS TP 9999.999 0 - 9999.999 1991 TO PRESENT
TOTAL_PHOSPHORUS_QF TPQF 99999 0 - 65536 1991 TO PRESENT
TOTAL_N TN 9999.999 0 - 9999.999 1991 TO PRESENT
TOTAL_N_QF TNQF 99999 0 - 65536 1991 TO PRESENT
TOTAL_SOLUBLE_N TSN 9999.999 0 - 9999.999 1991 TO PRESENT
TOTAL_SOLUBLE_N_QF TSNQF 99999 0 - 65536 1991 TO PRESENT
SUSPENDED_SOLIDS SS 999999.99 0 - 999999.99 1991 TO PRESENT
SUSPENDED_SOLIDS_QF SSQF 99999 0 - 65536 1991 TO PRESENT
ORGANIC_MATTER ORG 9999.9 0 - 9999.9 1991 TO PRESENT
ORGANIC_MATTER_QF ORGQF 99999 0 - 65536 1991 TO PRESENT
CHLOROPHYLL_S CHLS 999999.99 0 - 999999.99 1991 TO PRESENT
CHLOROPHYLL_S_QF CHLSQF 99999 0 - 65536 1991 TO PRESENT
PHAEOPHYTIN PHAEO 999999.99 0 - 999999.99 1991 TO PRESENT
PHAEOPHYTIN_QF PHAEOQF 99999 0 - 65536 1991 TO PRESENT
AMMONIUM_N NHX 9999.999 0 - 9999.999 1991 TO PRESENT
AMMONIUM_N_QF NHXQF 99999 0 - 65536 1991 TO PRESENT
NITRATE_NITRITE_N NOX 9999.999 0 - 9999.999 1991 TO PRESENT
NITRATE_NITRITE_N_QF NOXQF 99999 0 - 65536 1991 TO PRESENT
SILICA SI 9999.999 0 - 9999.999 1991 TO PRESENT
SILICA_QF SIQF 99999 0 - 65536 1991 TO PRESENT
DISLV_CALCIUM CA 9999.999 0 - 9999.999 1991 TO PRESENT
DISLV_CALCIUM_QF CAQF 99999 0 - 65536 1991 TO PRESENT
DISLV_IRON FE 9999.999 0 - 9999.999 1991 TO PRESENT
DISLV_IRON_QF FEQF 99999 0 - 65536 1991 TO PRESENT
DISLV_MANGENESE MN 9999.999 0 - 9999.999 1991 TO PRESENT
DISLV_MANGENESE_QF MNQF 99999 0 - 65536 1991 TO PRESENT
DISLV_POTASSIUM K 9999.999 0 - 9999.999 1991 TO PRESENT
DISLV_POTASSIUM_QF KQF 99999 0 - 65536 1991 TO PRESENT
CHLORIDE CL 99999.999 0 - 99999.999 1991 TO PRESENT
CHLORIDE_QF CLQF 99999 0 - 65536 1991 TO PRESENT
VOLATILE_SUS_SOLIDS VSS 999999.99 0 - 999999.99 1991 TO PRESENT
VOLATILE_SUS_SOLIDS_QF VSS_QF 99999 0 - 65536 1991 TO PRESENT
CHLOROPHYLL_FL1 CHLF 999999.9 0 - 999999.9 1993 TO PRESENT
CHLOROPHYLL_FL1_QF CHLFQF 99999 0 - 65536 2002 TO PRESENT
CHLOROPHYLL_FLI1 CHLFI 99999.99 0 - 99999.99 1993 TO PRESENT
CHLOROPHYLL_FLI1_QF CHLFIQF 99999 0 - 65536 2002 TO PRESENT
SODIUM NA 99999.9 0 - 99999.9 1994 TO PRESENT
SODIUM_QF NAQF 99999 0 - 65536 1991 TO PRESENT
MAGNESIUM MG 99999.9 0 - 99999.9 1994 TO PRESENT
MAGNESIUM_QF MGQF 99999 0 - 65536 1991 TO PRESENT
SULFATE SO4 99999.9 0 - 99999.9 1994 TO PRESENT
SULFATE_QF SO4QF 99999 0 - 65536 1991 TO PRESENT
HABITAT_CLASS HABCLASS ccccc SEE FIELD DESCRIPTIONS 1988 TO PRESENT
INSTRUMENT_CODE INSTCODE cccccccc SEE FIELD DESCRIPTIONS 2000 TO PRESENT
CROSS_LINK_BARCODE LINKBAR 99999999 0 - 99999999 2000 TO PRESENT
INSTRUMENT_READING RAWNTU 9999 0 - 9999 2000 TO PRESENT
INSTRUMENT_READING_QF RAWNTUQF c blank,0,1,2,3,4,5,6,7,8,A,C,D,H,2000 TO PRESENT
CHLOROPHYLL_CALIBRATED CHLcal 99999.99999 0-999999.9 1993 TO PRESENT
--------------------------------------------------------------------------------
Field Positions
Field Name Position
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BARCODE 1:8
FIELD_STATION_NUMBER 9:9
DATE_TIME 10:19
TIME_ONLY 20:24
NUMBER_OF_RECORDS 25:25
PROJECT_CODE 26:30
LOCATION_CODE 31:37
DBLKCD 38:44
WAVE_HEIGHT 45:47
WAVE_HEIGHT_QF 48:48
WATER_DEPTH 49:53
WATER_DEPTH_QF 54:54
ZMAX 55:59
SECCHI_DISK 60:62
SECCHI_DISK_QF 63:63
WAVE_CODE 64:64
ICE_DEPTH 65:70
ICE_DEPTH_QF 71:71
SUB_ICE_DEPTH 72:74
SUB_ICE_DEPTH_QF 75:75
ICE_COVER_PERCENT 76:78
ICE_COVER_PERCENT_QF 79:79
SNOW_DEPTH 80:85
SNOW_DEPTH_QF 86:86
SNOW_COVER_PERCENT 87:89
SNOW_COVER_PERCENT_QF 90:90
SITE_TYPE 91:91
STRATUM_TYPE 92:92
SUMMARY_CODE 93:93
SUBSTRATE_CODE 94:94
COVERAGE_CODE 95:95
VEG_DENSITY 96:96
VEG_TYPE 97:97
METHOD 98:98
UTM_ZONE 99:100
COORDINATES_NORTH_SOUTH 101:107
COORDINATES_EAST_WEST 108:114
GIS_GRID_CODE 115:125
ZONE15_NORTH_SOUTH 126:132
ZONE15_EAST_WEST 133:139
FIELD_DERIVED_EASTING 140:146
FIELD_DERIVED_NORTHING 147:153
EMTC_DERIVED_EASTING 154:160
EMTC_DERIVED_NORTHING 161:167
ACCURACY 168:172
SAMPLE_TYPE 173:173
STAGE_READING 174:178
RECORDER_CODE 179:182
CREW_LEADER_CODE 183:186
SITE_COMMENT 187:426
ROW_SEQUENCE_NUMBER 427:427
SAMPLE_DEPTH 428:432
SAMPLE_DEPTH_QF 433:433
SAMPLE_DEPTH_CODE 434:435
CALC_SAMPLE_DEPTH_CODE 436:437
WATER_TEMP 438:441
WATER_TEMP_QF 442:442
DISLV_OXYGEN 443:446
DISLV_OXYGEN_QF 447:447
PH 448:452
PH_QF 453:453
TURBIDITY 454:457
TURBIDITY_QF 458:458
SPECIFIC_CONDUCTIVITY 459:462
SPECIFIC_CONDUCTIVITY_QF 463:463
WATER_VEL 464:467
WATER_VEL_QF 468:468
WATER_CURRENT_DIRECTION 469:471
WATER_CURRENT_DIRECTION_QF 472:472
SAMPLE_BARCODE 473:480
SNP_SAMPLE_FLAG 481:481
NOX_SAMPLE_FLAG 482:482
MET_SAMPLE_FLAG 483:483
CL_SAMPLE_FLAG 484:484
SS_SAMPLE_FLAG 485:485
CHS_SAMPLE_FLAG 486:486
CHF_SAMPLE_FLAG 487:487
PYT_SAMPLE_FLAG 488:488
TNP_SAMPLE_FLAG 489:489
REPORT_CODE 490:490
SOLUBLE_REACTIVE_PHOSPHORUS 491:498
SOLUBLE_REACTIVE_PHOSPHORUS_QF 499:503
TOTAL_SOLUBLE_PHOSPHORUS 504:511
TOTAL_SOLUBLE_PHOSPHORUS_QF 512:516
TOTAL_PHOSPHORUS 517:524
TOTAL_PHOSPHORUS_QF 525:529
TOTAL_N 530:537
TOTAL_N_QF 538:542
TOTAL_SOLUBLE_N 543:550
TOTAL_SOLUBLE_N_QF 551:555
SUSPENDED_SOLIDS 556:564
SUSPENDED_SOLIDS_QF 565:569
ORGANIC_MATTER 570:575
ORGANIC_MATTER_QF 576:580
CHLOROPHYLL_A 581:589
CHLOROPHYLL_A_QF 590:594
PHAEOPHYTIN 595:603
PHAEOPHYTIN_QF 604:608
AMMONIUM_N 609:616
AMMONIUM_N_QF 617:621
NITRATE_NITRITE_N 622:629
NITRATE_NITRITE_N_QF 630:634
SILICA 635:642
SILICA_QF 643:647
DISLV_CALCIUM 648:655
DISLV_CALCIUM_QF 656:660
DISLV_IRON 661:668
DISLV_IRON_QF 669:673
DISLV_MANGENESE 674:681
DISLV_MANGENESE_QF 682:686
DISLV_POTASSIUM 687:694
DISLV_POTASSIUM_QF 695:699
CHLORIDE 700:708
CHLORIDE_QF 709:713
VOLATILE_SUS_SOLIDS 714:722
VOLATILE_SUS_SOLIDS_QF 723:727
CHLOROPHYLL_FL1 728:735
CHLOROPHYLL_FL1_QF 736:740
CHLOROPHYLL_FLI1 741:748
CHLOROPHYLL_FLI1_QF 749:753
SODIUM 754:760
SODIUM_QF 761:765
MAGNESIUM 766:772
MAGNESIUM_QF 773:777
SULFATE 778:784
SULFATE_QF 785:789
HABITAT_CLASS 790:794
INSTRUMENT_CODE 795:802
CROSS_LINK_BARCODE 803:810
INSTRUMENT_READING 811:814
INSTRUMENT_READING_QF 815:815
CHLOROPHYLL_CAL 816:826
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Field Descriptions
BARCODE
Identifying barcode for water data sheets.
FIELD STATION NUMBER
Numeric code identifying the field station number. Listed below are the
valid codes and their corresponding field station
1 = Lake City, MN 4 = Brighton, IL
2 = Onalaska, WI 5 = Jackson, MO
3 = Bellevue, IA 6 = Havana, IL
DATE
Date on which a sample collection was initiated.
mm/dd/yyyy format, example April 1, 2000, is represented as 04/01/2000.
TIME
2400-h (military) Central Standard Time (CST) at which a sample
collection began.
SAMPLES
Number of samples collected at the site location.
PROJECT CODE
Alphanumeric LTRM project code. Format is A-nnn, where A is a letter
describing project type and nnn is a special project number. Project types are
as follows:
M = RTA standardized resource monitoring
B = HREP biological response monitoring
E = Ad hoc exploratory sampling
R = Special research project
LOCATION CODE
Alphanumeric code for LTRMP Location Code having the format annn.na or
YYFTNNN. Permanent fixed sites use the annn.na format where the leading a
designates the river (M = Mississippi and I = Illinois), nnn.n is the river
mile (recorded to the nearest 0.1 mile), and the trailing a is an alphabetic
code for the relative lateral position across the floodplain. Random sites
use the YYFTNNN format. This format is described below.
YYYY = Year the site was visited
F = Field station number of site (see FIELD STATION NUMBER description)
T = Time period code site was visited. Valid codes are as follows:
1 = March thru May
2 = June thru August
3 = September thru November
4 = December thru February
NNN = Site number derived from a sampling map or site list.
DATA BLOCK CODE
Old administrative field used to help identify the location and time of a
collection sample (stopped using June 1993).
WAVE HEIGHT
Vertical distance between the highest and lowest point on a wave form,
using the Beaufort wind/sea-state scale. WAVE CODE replaced this field
in mid-1993.
WAVE HEIGHT QF
Wave height measurement quality factor code. Valid codes are as follows:
Blank = No problems
0 = Equipment inoperative
1 = Equipment questionable
2 = Reading Off-Scale Hi
3 = Reading Off-Scale Lo
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample Unrepresentative
7 = Sample Possibly Contaminated
8 = Sample Diluted
A = Non-Standard Method
C = Category Measurement
D = Cal Off Excessive
H = Hold Time Exceeded
X = Parameter Optional
WATER DEPTH
The vertical distance (to the nearest 0.1 m) between the substrate and the free
water surface or, if ice exists, the vertical distance between the substrate and
the lower surface of the ice. The same as ZMAX (see Below) when ice is not
present.
Z MAX QF
Water depth measurement quality factor code. Valid codes are as follows:
Blank = No problems
0 = Equipment inoperative
1 = Equipment questionable
2 = Reading Off-Scale Hi
3 = Reading Off-Scale Lo
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample Unrepresentative
7 = Sample Possibly Contaminated
8 = Sample Diluted
A = Non-Standard Method
C = Category Measurement
D = Cal Off Excessive
H = Hold Time Exceeded
X = Parameter Optional
ZMAX
The vertical distance (to the nearest 0.1 m) between the substrate and the
free water surface. Same as Water Depth (see above) when ice is not present.
Zmax is recorded as zero when the water is frozen to the substrate
(no free water surface exists or cannot be reliably determined).
SECCHI
The vertical distance below the water surface at which a secchi disk
disappears from view. Recorded in centimeters.
SECCHI QF
Secchi measurement quality factor code. Valid codes are as follows:
Blank = No problems
0 = Equipment inoperative
1 = Equipment questionable
2 = Reading Off-Scale Hi
3 = Reading Off-Scale Lo
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample Unrepresentative
7 = Sample Possibly Contaminated
8 = Sample Diluted
A = Non-Standard Method
C = Category Measurement
D = Cal Off Excessive
H = Hold Time Exceeded
X = Parameter Optional
WAVE CODE
Visual determination of wave type using the Beaufort scale.
Valid codes are as follows:
0 = Glass
1 = Ripple
2 = Wavelet
3 = White caps
4 = Rough
Z ICE
Vertical thickness of ice. Only the portion of the frozen block
that represents the water column within the ice block is
measured as ice depth. Reported in centimeters.
Z ICE QF
Ice thickness measurement quality factor code. Valid codes are
as follows:
Blank = No problems
0 = Equipment inoperative
1 = Equipment questionable
2 = Reading Off-Scale Hi
3 = Reading Off-Scale Lo
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample Unrepresentative
7 = Sample Possibly Contaminated
8 = Sample Diluted
A = Non-Standard Method
C = Category Measurement
D = Cal Off Excessive
H = Hold Time Exceeded
X = Parameter Optional
Z S ICE
Submerged thickness of ice measured to the nearest centimeter.
Not recorded until mid-1993.
Z S ICE QF
Submerged ice thickness measurement quality factor code. Valid
codes are as follows:
Blank = No problems
0 = Equipment inoperative
1 = Equipment questionable
2 = Reading Off-Scale Hi
3 = Reading Off-Scale Lo
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample Unrepresentative
7 = Sample Possibly Contaminated
8 = Sample Diluted
A = Non-Standard Method
C = Category Measurement
D = Cal Off Excessive
H = Hold Time Exceeded
X = Parameter Optional
% ICE
Estimate of the percentage of water surface covered by ice within
a 200 meter radius of the collection site.
% ICE QF
Ice percentage measurement quality factor code. Valid
codes are as follows:
Blank = No problems
0 = Equipment inoperative
1 = Equipment questionable
2 = Reading Off-Scale Hi
3 = Reading Off-Scale Lo
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample Unrepresentative
7 = Sample Possibly Contaminated
8 = Sample Diluted
A = Non-Standard Method
C = Category Measurement
D = Cal Off Excessive
H = Hold Time Exceeded
X = Parameter Optional
Z SNOW
Vertical thickness of snow on the ice reported in centimeters.
Z SNOW QF
Snow thickness measurement quality factor code. Valid
codes are as follows:
Blank = No problems
0 = Equipment inoperative
1 = Equipment questionable
2 = Reading Off-Scale Hi
3 = Reading Off-Scale Lo
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample Unrepresentative
7 = Sample Possibly Contaminated
8 = Sample Diluted
A = Non-Standard Method
C = Category Measurement
H = Hold Time Exceeded
X = Parameter Optional
D = Cal Off Excessive
% SNOW
Estimate of the percentage of water surface covered by snow within
a 200 meter radius of the collection site.
% SNOW F
Snow percentage measurement quality factor code. Valid
codes are as follows:
Blank = No problems
0 = Equipment inoperative
1 = Equipment questionable
2 = Reading Off-Scale Hi
3 = Reading Off-Scale Lo
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample Unrepresentative
7 = Sample Possibly Contaminated
8 = Sample Diluted
A = Non-Standard Method
C = Category Measurement
D = Cal Off Excessive
H = Hold Time Exceeded
X = Parameter Optional
SITE TYPE
Identifies the physical type of collection site. Valid types are
as follows:
0 = Primary
1 = Alternate
2 = Fixed
3 = Other
STRATUM TYPE
Aquatic area/Land use description code for the collection site.
Valid codes are as follows:
1 = Main channel
2 = Side channel
3 = Backwater area contiguous to the main channel
4 = Lake Pepin or Swan Lake
5 = Impounded
6 = Isolated
7 = New Terrestrial
9 = Unexploded Ordinance Area - Pool 13
SUMMARY CODE
Circumstances surrounding the decision to accept or reject a
site sample (replaced by QF codes in mid-1993). Valid codes are
as follows:
1 = One or more of the data values for this site sample are
suspected or known to be in error.
2 = Possible equipment malfunction.
3 = Data potentially non-representative of that habitat type due
to local, short-term conditions.
4 = Post-entry data analysis suggests that this observation may
be atypical, but no reporting or transcription errors have
been identified.
5 = No apparent problems.
SUBSTRATE CODE
A qualitative description code of substrate sediments. Started in
mid-1993. Valid codes are as follows:
0 = Clay
1 = Silt
2 = Silt/Clay/Sand
3 = Sand
4 = Hard
COVERAGE CODE
Determination of the relative abundance of emergent and submergent
aquatic vegetation, estimated as a percent. Valid codes are as
follows:
0 = 0%
1 = 1 - 19%
2 = 20 - 49%
3 = >50%
VEG DENSITY
Subjective visual determination of the relative density of
emergent and submergent aquatic vegetation. Valid codes are as
follows:
1 = Sparse
2 = Dense
VEG TYPE
Determination of the type of emergent and/or submergent aquatic
vegetation. Valid codes are as follows:
S = Submergent
E = Emergent
F = Floating
B = Both submergent and emergent
C = Any combination of submergent, emergent, and floating
METHOD
Numeric code specifying the method used to locate the collection site,
as follows:
1 = UTMs recorded from cross-reference between base map and site features
2 = UTMs recorded from GPS device (Magellan)
3 = Latitude (N/S coordinates; degrees, minutes, seconds) and
longitude (E/W coordinates; degrees, minutes,
seconds) recorded from GPS (Loran)
4 = Latitude and longitude recorded from cross-reference between base map
and site features
5 = Differential GPS
UTM ZONE
Numeric field to record Global Positioning System (GPS) zone. LTRMP
data resides in either zone 15 or 16.
COORDINATES NORTH SOUTH
Universal transverse mercator (UTM North American 1983 datum) northing coordinate for a water quality sampling site (in meters). Proper interpretation of this coordinaterequires reference to the appropriate UTM zone (15 or 16 for LTRM). This is the initially assigned and
registered UTM northing for an LTRM sampling site.
COORDINATES EAST WEST
Universal transverse mercator (UTM North American 1983 datum) easting coordinate for
a water quality sampling site (in meters). Proper interpretation of
this coordinate requires reference to the appropriate UTM zone
(15 or 16 for LTRM). This is the initially assigned and registered
UTM easting for an LTRM sampling site.
GIS GRID CODE
Modified and concatenated utm coordinate pair used to generalize site
locations within a 50 square meter area.
ZONE15 NORTH SOUTH
Universal transverse mercator (UTM North American 1983 datum) northing coordinate for a water quality sampling site (in meters) referenced to a single UTM zone (15). This value is calculated from coordinates_east_west and is particularly useful for LTRM areas
that include both UTM zone 15 and UTM zone 16.
ZONE15 EAST WEST
Universal transverse mercator (UTM North American 1983 datum) easting coordinate for a water quality sampling site (in meters) referenced to a single UTM zone (15). This value is calculated from coordinates_east west and is particularly useful for LTRM areas that include both UTM zone 15 and UTM zone 16.
FIELD DERIVED EASTING
Universal transverse mercator (UTM North American 1983 datum) easting coordinate for a
water quality sampling site (in meters) as reported from the field.
Proper interpretation of this coordinate requires reference to the
appropriate UTM zone (15 or 16 for LTRM). LTRM procedures call for
a value in this field only when a sample is collected at a location
that differs significantly from the pre-assigned or registered coordinates.
FIELD DERIVED NORTHING
Universal transverse mercator (UTM North American 1983 datum) northing coordinate
for a water quality sampling site (in meters) as reported from the field.
Proper interpretation of this coordinate requires reference to the
appropriate UTM zone (15 or 16 for LTRM). LTRM procedures call for
a value in this field only when a sample is collected at a location that
differs significantly from the pre-assigned or registered
coordinates.
UMESC DERIVED EASTING
Universal transverse mercator (UTM North American 1983 datum) easting coordinate for
a water quality sampling site (in meters) as preassigned by UMESC.
Proper interpretation of this coordinate requires reference to the
appropriate UTM zone (15 or 16 for LTRM). UMESC preassigns coordinates
for stratified random sampling (SRS) only. For SRS sites, this
coordinate is also the initial assignment for Coordinates east west.
UMESC DERIVED NORTHING
Universal transverse mercator (UTM North American 1983 datum) northing coordinate
for a water quality sampling site (in meters) as preassigned by UMESC.
Proper interpretation of this coordinate requires reference to the
appropriate UTM zone (15 or 16 for LTRM). UMESC preassigns coordinates
for stratified random sampling (SRS) only. For SRS sites, this coordinate
is also the initial assignment for Coordinates north south.
ACCURACY
Numeric field to record a measure of positioning accuracy. Record Percent
Dilution of Precision (PDOP) from GPS devices and the following codes for base
map cross-reference and revisits to marked fixed sites:
000.1 = Almost certain accuracy within 100 m because of immediate proximity to
uniquely identifiable features (undisturbed marker, wing dam, day mark,
etc.).
000.2 = High confidence of accuracy within 100 m because of agreement between
general site appearance and identifiable features on a base map.
000.3 = Other than above.
SAMPLE TYPE
Indicates the types of samples collected. Valid codes are as follows:
Blank = Normal sampling
1 = QA sampling
STAGE READING
The height of the water surface above the National Geodetic Vertical Datum,
and is controlled by dam operations. Measured in feet.
RECORDER CODE
Alphanumeric field to identify the LTRM recorder responsible for recording of
this data. These codes are permanently assigned to LTRM staff at each
station.
CREW LEADER CODE
Alphanumeric field to identify the LTRM Crew Leader responsible for recording
of this data. These codes are permanently assigned to LTRM staff at each
station.
SITE COMMENT
Two Hundred Forty-character field to record miscellaneous comments and observations.
SAMPLE ROW NUMBER
Numeric field to identify, isolate, and sort individual detail records.
Z
The vertical distance (to the nearest 0.1m) between the free water surface and
the point of sample collection or ambient measurement. When ice is present, the
following conventions are used to record Z: (1) samples collected more than 25
cm below the bottom of the ice are assigned a z value in the usual manner as
described above, (2) samples collected 16-25 cm below the ice are assigned a z
value of 0.2 m. (3) Samples collected between 0 and 14 cm below the ice are
assigned a z value of 0.1m, and (4) samples collected above the lower level of
the ice (i.e., in the access hole) are assigned a z value of zero.
Z QF
Sample depth measurement quality factor code. Valid codes are as follows:
Blank = No problems
0 = Equipment inoperative
1 = Equipment questionable
2 = Reading Off-Scale Hi
3 = Reading Off-Scale Lo
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample Unrepresentative
7 = Sample Possibly Contaminated
8 = Sample Diluted
A = Non-Standard Method
C = Category Measurement
D = Cal Off Excessive
H = Hold Time Exceeded
X = Parameter Optional
SAMPLE DEPTH CODE
Subjective description of water depth at which sample depth was taken.
Valid codes are as follows:
SF = Surface
MD = Middle
BT = Bottom
OT = Other
CALCULATED SAMPLE DEPTH CODE
Administrative field. Derived from comparing sample depth against
Z MAX. Used as a comparison check against sample depth code.
Valid codes are as follows:
SF = Surface
MD = Middle
BT = Bottom
OT = Other
TEMP
Water temperature for the sample measured in degrees Celsius.
TEMP QF
Water temperature measurement quality factor code. Valid codes
are as follows:
Blank = No problems
0 = Equipment inoperative
1 = Equipment questionable
2 = Reading Off-Scale Hi
3 = Reading Off-Scale Lo
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample Unrepresentative
7 = Sample Possibly Contaminated
8 = Sample Diluted
A = Non-Standard Method
C = Category Measurement
D = Cal Off Excessive
H = Hold Time Exceeded
X = Parameter Optional
DO
Amount of Dissolved Oxygen in the sample. Measured in
milligrams/liter.
DO QF
Dissolved oxygen measurement quality factor code. Valid codes
are as follows:
Blank = No problems
0 = Equipment inoperative
1 = Equipment questionable
2 = Reading Off-Scale Hi
3 = Reading Off-Scale Lo
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample Unrepresentative
7 = Sample Possibly Contaminated
8 = Sample Diluted
A = Non-Standard Method
C = Category Measurement
H = Hold Time Exceeded
X = Parameter Optional
D = Cal Off Excessive
PH
pH measurement for the sample. Measured in pH units.
PH QF
pH measurement quality factor code. Valid codes are as follows:
Blank = No problems
0 = Equipment inoperative
1 = Equipment questionable
2 = Reading Off-Scale Hi
3 = Reading Off-Scale Lo
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample Unrepresentative
7 = Sample Possibly Contaminated
8 = Sample Diluted
A = Non-Standard Method
C = Category Measurement
D = Cal Off Excessive
H = Hold Time Exceeded
X = Parameter Optional
TURB
Turbidity (water clarity) measurement for the sample. Measured
in nephelometric turbidity to the nearest whole nephelometric
techniques.
TURB QF
Turbidity measurement quality factor code.
Valid codes are as follows:
Blank = No problems
0 = Equipment inoperative
1 = Equipment questionable
2 = Reading Off-Scale Hi
3 = Reading Off-Scale Lo
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample Unrepresentative
7 = Sample Possibly Contaminated
8 = Sample Diluted
A = Non-Standard Method
C = Category Measurement
D = Cal Off Excessive
H = Hold Time Exceeded
X = Parameter Optional
COND
Conductivity (ability of the water to conduct an electric
current) measurement for the sample. Measured to the
nearest uS/cm.
COND QF
Conductivity measurement quality factor code.
Valid codes are as follows:
Blank = No problems
0 = Equipment inoperative
1 = Equipment questionable
2 = Reading Off-Scale Hi
3 = Reading Off-Scale Lo
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample Unrepresentative
7 = Sample Possibly Contaminated
8 = Sample Diluted
A = Non-Standard Method
C = Category Measurement
D = Cal Off Excessive
H = Hold Time Exceeded
X = Parameter Optional
VEL
Velocity of water current. Measured in meters per second.
VEL QF
Velocity measurement quality factor code.
Valid codes are as follows:
Blank = No problems
0 = Equipment inoperative
1 = Equipment questionable
2 = Reading Off-Scale Hi
3 = Reading Off-Scale Lo
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample Unrepresentative
7 = Sample Possibly Contaminated
8 = Sample Diluted
A = Non-Standard Method
C = Category Measurement
D = Cal Off Excessive
H = Hold Time Exceeded
X = Parameter Optional
DIR
Compass direction from which the water current is flowing.
Measured in degrees.
DIR QF
Current direction measurement quality factor code.
Valid codes are as follows:
Blank = No problems
0 = Equipment inoperative
1 = Equipment questionable
2 = Reading Off-Scale Hi
3 = Reading Off-Scale Lo
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample Unrepresentative
7 = Sample Possibly Contaminated
8 = Sample Diluted
A = Non-Standard Method
C = Category Measurement
D = Cal Off Excessive
H = Hold Time Exceeded
X = Parameter Optional
SAMPLE BARCODE
Identifying barcode for a water sample to be used for future
chemical analysis.
FILTERED SNP
Code to indicate if future chemical analysis is to be done for
soluble nitrogen and phosphorus. Valid codes are as follows:
Blank = No sample
1 = Sample OK
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample unrepresentative
7 = Sample possibly contaminated
8 = Sample Diluted
A = Non-Standard Method
H = Hold Time Exceeded
X = Parameter Optional
FILTERED NOX
Code to indicate if future chemical analysis is to be done for
nitrate and/or nitrite. Valid codes are as follows:
Blank = No sample
1 = Sample OK
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample unrepresentative
7 = Sample possibly contaminated
8 = Sample Diluted
A = Non-Standard Method
H = Hold Time Exceeded
X = Parameter Optional
FILTERED MET
Code to indicate if future chemical analysis is to be done for
metals. Valid codes are as follows:
Blank = No sample
1 = Sample OK
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample unrepresentative
7 = Sample possibly contaminated
8 = Sample Diluted
A = Non-Standard Method
H = Hold Time Exceeded
X = Parameter Optional
FILTERED CL
Code to indicate if future chemical analysis is to be done for
chloride. Valid codes are as follows:
Blank = No sample
1 = Sample OK
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample unrepresentative
7 = Sample possibly contaminated
8 = Sample Diluted
A = Non-Standard Method
H = Hold Time Exceeded
X = Parameter Optional
FILTERED SS
Code to indicate if future chemical analysis is to be done for
suspended solids. Valid codes are as follows:
Blank = No sample
1 = Sample OK
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample unrepresentative
7 = Sample possibly contaminated
8 = Sample Diluted
A = Non-Standard Method
H = Hold Time Exceeded
X = Parameter Optional
FILTERED CHS
Code to indicate if future chemical analysis is to be done for
spectrophotometric chlorophylla. Valid codes are as follows:
Blank = No sample
1 = Sample OK
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample unrepresentative
7 = Sample possibly contaminated
8 = Sample Diluted
A = Non-Standard Method
H = Hold Time Exceeded
X = Parameter Optional
FILTERED CHF
Code to indicate if future chemical analysis is to be done for
fluorometric chlorophylla. Valid codes are as follows:
Blank = No sample
1 = Sample OK
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample unrepresentative
7 = Sample possibly contaminated
8 = Sample Diluted
A = Non-Standard Method
H = Hold Time Exceeded
X = Parameter Optional
UNFILTERED PYT
Code to indicate if future chemical analysis is to be done for
phytoplankton. Valid codes are as follows:
Blank = No sample
1 = Sample OK
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample unrepresentative
7 = Sample possibly contaminated
8 = Sample Diluted
A = Non-Standard Method
H = Hold Time Exceeded
X = Parameter Optional
UNFILTERED TNP
Code to indicate if future chemical analysis is to be done for
total nitrogen and phosphorus. Valid codes are as follows:
Blank = No sample
1 = Sample OK
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample unrepresentative
7 = Sample possibly contaminated
8 = Sample Diluted
A = Non-Standard Method
H = Hold Time Exceeded
X = Parameter Optional
REPORT CODE
Numeric code documenting the overall quality of a specific sample
as described below:
1 = Gear failure; site may be re-sampled within time period
2 = Site cannot be sampled (i.e., site is dry or inaccessible)
3 = Sample collected under unusual environmental conditions
4 = Weighing equipment may be in error due to wind and waves
5 = Normally completed sample; all LTRMP procedures followed
6 = Non-critical gear modification (e.g., fyke net lead shortened)
7 = Pseudo-shoreline used for shoreline gear
8 = Minor gear damage or noncritical gear failure
SOLUBLE REACTIVE PHOSPHORUS
Soluble reactive phosphorus measurement for the sample.
Reported as milligrams of phosphorus per liter.
TOTAL SOLUBLE PHOSPHORUS
Total soluble phosphorus measurement for the sample.
Measured in milligrams per liter.
TOTAL PHOSPHORUS
The total amount of phosphorus (dissolved and particulate) in
the sample determined using persulfate digestion. Reported as
milligrams of phosphorus per liter.
TOTAL NITROGEN
The total nitrogen concentration (dissolved and particulate)
in the sample. Reported as milligrams of nitrogen per liter.
TOTAL SOLUBLE N
The total soluble nitrogen concentration for the sample.
Measured in milligrams per liter.
SUSPENDED SOLIDS
The total particulate material trapped by a glass fiber filter
and dried at 105 degrees Centigrade. Reported as milligrams
per liter.
ORGANIC MATTER
Organic matter measurement for the sample. This is not yet measured
and units have not yet been determined.
CHLOROPHYLL S
The concentration of photosynthetic pigment chlorophyll-a,
corrected for phaeophytin as determined by the spectrophotometric
technique using 90% acetone extraction. Measured in micrograms
per liter.
PHAEOPHYTIN
Phaeophytin is a degradation product of chlorophyll as
detected by the spectrophotometric technique for the sample.
Measured in micrograms per liter.
AMMONIUM N
The total amount of ammonia (ionized and non-ionized) for
the sample. Measured in milligrams of nitrogen per liter.
NITRATE NITRITE
The total amount of nitrate plus nitrite for the sample.
Measured in milligrams of nitrogen per liter.
SILICA
The total amount of silica for the sample.
Measured in Si milligrams per liter.
DISSOLVED CALCIUM
The total amount of calcium for the sample.
Measured in milligrams per liter.
DISSOLVED IRON
The total amount of iron for the sample.
Measured in milligrams per liter.
DISSOLVED MANGENESE
The total amount of mangenese for the sample.
Measured in milligrams per liter.
DISSOLVED POTASSIUM
The total amount of potassium for the sample.
Measured in milligrams per liter.
CHLORIDE
The total amount of chloride for the sample.
Measured in milligrams per liter.
VOLATILE SUSPENDED SOLIDS
The weight loss on combustion at 500 - 500 degrees Centigrade
of the total suspended solids residue for the sample. Reported
in milligrams per liter.
CHLOROPHYLL FL1
Uncalibrated fluorometric chlorophyll. Values must be compared to
spectrophotometric measurements of chlorophyll a (see above) to
develop specific calibration factors. Approximate calibration
equation is: Chlorophyll a = 1.9 + 0.9####FL1. Units of Chlorophyll
and FL1 are both micrograms per liter.
CHLOROPHYLL FLI1
Uncalibrated fluorometric reading after acidification - for
determination of phaeophytin. Can be compared/combined
with Chlorophyll FL1 (above) to assess phaeophytin concentration.
SODIUM
The concentration (milligrams/Liter) of sodium ions in the sample.
MAGNESIUM
The concentration (milligrams/Liter) of magnesium ions in the sample.
SULFATE
The concentration of sulfate (S04) ions in the sample expressed as milligrams
per liter.
HABITAT CLASS
Alphabetic code LTRMP habitat class description:
BWC-O = Backwater contiguous - open water
BWC-V = Backwater contiguous - vegetated water
BWI-O = Backwater isolated - open water
BWI-V = Backwater isolated - vegetated water
IMP-L = Impounded - lakelike
IMP-O = Impounded - open water
IMP-V = Impounded - vegetated water
CBU = Main channel border unstructured
CBW = Main channel border wingdam
CTR = Main channel trough
SCU = Side channel border unstructured
SCT = Side channel trough
TWB = Tailwater channel border
TWW = Tailwater wingdam
TRIB = Tributary
TRBM = Tributary mouth
UXO = Unexpoded Ordinance
Instrument Code
Serial number of instrument used for sample readings
Cross Link Barocde
Barcode used to link Water Quality data to other LTRMP components
RAWTURB
Turbidity reading prior to standardized dilution methods. Measured in nephelometric turbidity units.
RAWTURB QF
Valid codes are as follows:
Blank = No problems
0 = Equipment inoperative
1 = Equipment questionable
2 = Reading Off-Scale Hi
3 = Reading Off-Scale Lo
4 = Sample Returned to Lab
5 = Sample Unusable or Unobtainable
6 = Sample Unrepresentative
7 = Sample Possibly Contaminated
8 = Sample Diluted
A = Non-Standard Method
C = Category Measurement
D = Cal Off Excessive
H = Hold Time Exceeded
X = Parameter Optional
CHLOROPHYLL Calibrated
Calibrated fluorometric chlorophyll a. Fluorometric chlorophyll a values generated by calibration of fluorometric chlorophyll readings (“CHLF”)
to season and year specific measurements of spectrophotometric chlorophyll (“CHLS”). Data from sites where CHLS and CHLF are both collected
are used to build river-specific calibration curves for these data. Values are corrected for pheophytin. Units are micrograms per liter.
CHLcal values are not available for "fixed" sampling sites prior to 1998, for which only CHLS was measured.
U.S. Department of the Interior |
U.S. Geological Survey
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