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CHEMICAL QUALITY OF PRECIPITATION
RED RIVER OF THE NORTH BASIN
484714097442301 ICELANDIC STATE PARK, ND
(National Trends Network precipitation-quality station)
LOCATION.--Lat 48°47'14", long 97°44'23", in SW1/4NW1/4SW1/4 sec. 10, T.161 N., R.55 W., Pembina County, Hydrologic Unit 09020313,
at Icelandic State Park 5.6 mi west of Cavalier.
PERIOD OF RECORD.--October 1983 to current year (weekly composite).
INSTRUMENTATION.--The composite sample collector is an Aerochem Metrics1 model 301 wet/dry precipitation collector mounted on
ground surface. Precipitation quantity is determined by a Belfort1 model 5-780 recording rain gage equipped with an event
recorder and an Alter-type wind screen. The recording rain gage is installed 20 ft east of the sample collector with gage mouth
and collector bucket elevations of 50.75 in above land surface.
REMARKS.--Data presented are provisional analyses by the Central Analytical Laboratory of the Illinois State Water Survey and have
not completed quality-assurance review by the National Atmospheric Deposition Program. Analyses are determined from water
taken from the sample collector.
WATER-QUALITY DATA, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000
COL- SPE- PH PH
LECTOR SPE- CIFIC WATER WATER MAGNE-
PRECIP- EFFI- CIFIC CON- WHOLE WHOLE CALCIUM SIUM,
ITATION CIENCY CON- DUCT- FIELD LAB DIS- DIS-
TOTAL WET DUCT- ANCE (STAND- (STAND- SOLVED SOLVED
INCHES/ DEPOS. ANCE LAB ARD ARD (MG/L (MG/L
PERIOD OF WEEK PERCENT (US/CM) (US/CM) UNITS) UNITS) AS CA) AS MG)
COLLECTION (00046) (82284) (00095) (90095) (00400) (00403) (00915) (00925)
09/28 to 10/05 b<.01 100 -- -- -- -- -- --
10/05 to 10/12 <.01 >200 -- a35 -- a7.1 a2.43 a.337
10/12 to 10/19 .22 50 11 11 6.3 6.3 .269 .049
10/19 to 10/26 .00 -- -- -- -- -- -- --
10/26 to 11/02 .00 -- -- -- -- -- -- --
11/02 to 11/09 .00 -- -- -- -- -- -- --
11/09 to 11/16 .00 -- -- -- -- -- -- --
11/16 to 11/23 b.02 <50 -- -- -- -- -- --
11/23 to 11/30 .05 60 -- 7 -- 6.1 .328 .071
11/30 to 12/07 b.03 100 -- 6 -- 5.9 -- --
12/07 to 12/14 .15 40 6 6 6.4 6.0 .226 .044
12/14 to 12/21 .20 20 6 6 6.3 5.8 .107 .024
12/21 to 12/28 .02 50 -- 7 -- 6.0 .066 .010
12/28 to 01/04 -- -- -- 5 -- 6.1 <.050 <.017
01/04 to 01/11 -- -- -- -- -- -- -- --
01/11 to 01/18 -- -- -- 9 -- 5.0 .19 .023
01/18 to 01/25 b.05 <20 -- -- -- -- -- --
01/25 to 02/01 .00 -- -- -- -- -- -- --
02/01 to 02/08 b.00 -- -- -- -- -- -- --
02/08 to 02/15 b.07 <14 -- 6 -- 5.8 -- --
02/15 to 02/22 b.00 -- -- -- -- -- -- --
02/22 to 02/29 .97 88 6 6 5.9 5.4 .041 .004
02/29 to 03/07 .03 133 -- 34 -- 6.6 1.72 .271
03/07 to 03/14 b.00 -- -- -- -- -- -- --
03/14 to 03/21 b.02 50 -- 6 -- 6.4 -- --
03/21 to 03/28 .60 83 15 13 6.1 5.2 .041 .007
03/28 to 04/04 .10 80 10 9 6.7 6.2 .253 .050
04/04 to 04/11 .07 71 -- 6 -- 6.0 .113 .018
04/11 to 04/18 .04 25 -- a19 -- a6.4 a.497 a.064
04/18 to 04/25 .00 -- -- -- -- -- -- --
04/25 to 05/02 .03 33 -- a28 -- a6.6 a1.26 a.200
05/02 to 05/09 .86 97 30 35 6.4 7.0 .364 .082
05/09 to 05/16 .64 102 8 8 6.3 6.5 .088 .015
05/16 to 05/23 .14 121 18 20 6.6 6.6 1.35 .276
05/23 to 05/30 .00 -- -- -- -- -- -- --
05/30 to 06/06 .20 95 12 11 5.9 6.0 .439 .091
06/06 to 06/13 1.28 99 7 8 5.9 6.3 .255 .045
06/13 to 06/20 2.7 102 5 5 5.9 6.0 .069 .012
06/20 to 06/27 1.03 92 6 6 5.3 5.5 .150 .034
06/27 to 07/04 .00 -- -- -- -- -- -- --
07/04 to 07/11 .75 100 13 13 6.0 6.4 .400 .059
07/11 to 07/18 .70 104 11 10 5.8 6.2 .332 .068
07/18 to 07/25 .00 -- -- -- -- -- -- --
07/25 to 08/01 .20 115 -- 23 -- 6.7 .690 .127
08/01 to 08/08 1.73 107 6 7 5.9 6.2 .120 .024
08/08 to 08/15 1.27 100 11 11 5.7 6.4 .372 .055
08/15 to 08/22 .65 100 12 12 -- 6.3 .376 .043
08/22 to 08/29 2.34 100 12 7 4.7 5.8 .142 .015
08/29 to 09/05 1.48 93 11 11 4.6 5.6 .288 .026
09/05 to 09/12 .15 107 26 25 6.4 6.6 1.59 .119
09/12 to 09/19 .25 84 -- 30 -- 6.9 .200 .040
NITRO- NITRO-
POTAS- CHLO- GEN, GEN, PHOS-
SODIUM, SIUM, SULFATE RIDE, NITRATE AMMONIA PHORUS
DIS- DIS- DIS- DIS- DIS- DIS- DIS-
SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED
(MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L
PERIOD OF AS NA) AS K) AS SO4) AS CL) AS N) AS N) AS P)
COLLECTION (00930) (00935) (00945) (00940) (00618) (00608) (00666)
09/28 to 10/05 -- -- -- -- -- -- --
10/05 to 10/12 a.140 a.237 a4.4 a.26 a1.28 a1.58 a<.003
10/12 to 10/19 .023 .058 1.3 .09 .310 .710 <.001
10/19 to 10/26 -- -- -- -- -- -- --
10/26 to 11/02 -- -- -- -- -- -- --
11/02 to 11/09 -- -- -- -- -- -- --
11/09 to 11/16 -- -- -- -- -- -- --
11/16 to 11/23 -- -- -- -- -- -- --
11/23 to 11/30 .016 .025 .71 .04 .201 .260 <.001
11/30 to 12/07 -- -- -- -- -- -- --
12/07 to 12/14 .037 .035 .33 .04 .323 .300 <.001
12/14 to 12/21 .012 .020 .46 <.03 .218 .260 <.001
12/21 to 12/28 .009 .003 <.03 .14 .040 .030 <.001
12/28 to 01/04 <.017 <.017 .33 <.02 .090 .310 --
01/04 to 01/11 -- -- -- -- -- -- --
01/11 to 01/18 .041 .014 .33 .15 .360 .130 --
01/18 to 01/25 -- -- -- -- -- -- --
01/25 to 02/01 -- -- -- -- -- -- --
02/01 to 02/08 -- -- -- -- -- -- --
02/08 to 02/15 -- -- -- -- -- -- --
02/15 to 02/22 -- -- -- -- -- -- --
02/22 to 02/29 .010 .006 .50 <.03 .165 .290 <.001
02/29 to 03/07 .536 .093 4.9 .57 .854 1.52 <.001
03/07 to 03/14 -- -- -- -- -- -- --
03/14 to 03/21 -- -- -- -- -- -- --
03/21 to 03/28 .005 .009 1.5 .03 .500 .78 <.001
03/28 to 04/04 .040 .039 .92 .07 .309 .630 <.001
04/04 to 04/11 .017 .017 .61 .04 .177 .360 <.001
04/11 to 04/18 a.091 a.021 a2.8 a.11 a.450 a1.16 a<.001
04/18 to 04/25 -- -- -- -- -- -- --
04/25 to 05/02 a.107 a.093 a2.2 a.20 a1.095 a1.73 a<.001
05/02 to 05/09 .060 1.68 1.8 .43 .367 2.73 1.139
05/09 to 05/16 .018 .036 .52 <.03 .179 .780 <.001
05/16 to 05/23 .123 .202 1.9 .06 .437 .860 <.001
05/23 to 05/30 -- -- -- -- -- -- --
05/30 to 06/06 .043 .049 1.2 .09 .453 .590 <.001
06/06 to 06/13 .017 .032 .52 .04 .242 .410 <.001
06/13 to 06/20 .008 .015 .47 <.03 .160 .360 <.001
06/20 to 06/27 .009 .018 .68 .03 .165 .220 <.001
06/27 to 07/04 -- -- -- -- -- -- --
07/04 to 07/11 .061 .110 .80 .09 .351 .920 <.001
07/11 to 07/18 .032 .053 .74 .09 .437 .670 <.001
07/18 to 07/25 -- -- -- -- -- -- --
07/25 to 08/01 .063 .630 1.4 .17 .467 1.23 .017
08/01 to 08/08 <.003 .024 .46 <.03 .132 .480 <.001
08/08 to 08/15 .071 .060 .80 .08 .276 .530 <.001
08/15 to 08/22 .034 .079 .94 .08 .400 .810 <.001
08/22 to 08/29 .014 .024 .67 .03 .233 .470 <.001
08/29 to 09/05 .021 .026 1.3 .05 .402 .560 <.001
09/05 to 09/12 .053 .110 2.7 .13 .933 1.16 <.001
09/12 to 09/19 .098 1.31 1.4 .39 .127 3.03 .702
1 The use of brand names in this report is for identification purposes only and
does not imply endorsement by the U.S. Geological Survey.
a To provide for an adequate sample, 50 milliliters of dilution water was added.
b Trace of water collected in field sampler.
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