RED RIVER OF THE NORTH BASIN

                                      05082500  RED RIVER OF THE NORTH AT GRAND FORKS, ND

LOCATION.--Lat 47o55'38", long 97o01'34", in sec.2, T.151 N., R.50 W., Grand Forks County, Hydrologic Unit 09020301, on right
   bank 200 ft upstream from the DeMers Avenue bridge, 0.4 mi downstream from Red Lake River, and at mile 297.6.

DRAINAGE AREA.--30,100 mi2, approximately, including 3,800 mi2 in closed basins.

                                                    WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--April 1882 to current year. Prior to January 1904 monthly discharge only, published in WSP 1308.

REVISED RECORDS.--WSP 855: 1936(M). WSP 1115: 1942. WSP 1175: 1897(M). WSP 1388: 1904, 1914-15, 1917-19, 1921-22, 1927, 1950.
   WSP 1728: Drainage area. WRD-ND-81-1: 1882, 1897 (M).

GAGE.--Water-stage recorder. Datum of gage is 779.00 ft above sea level. Oct. 1, 1983, to Sept. 30, 1986, datum of gage was
   780.00 ft at same site. Apr. 14, 1965, to Sept. 30, 1983, water-stage recorder 1.9 mi downstream at a datum of 778.35 ft.
   Nov. 3, 1933, to Apr. 13, 1965, water-stage recorder 0.3 mi upstream at 778.35 ft datum. See WSP 1728 or 1913 for history of
   changes prior to Nov. 3, 1933.

REMARKS.--Records good except for periods of estimated discharge, which are poor.

                           DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
                                                        DAILY MEAN VALUES

         DAY       OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP

           1      1640     3960     4810    e1690    e1660    e2100    49700     9210    10300     6640     4930     4070
           2      1690     3950     5040    e1680    e1640    e2150    48200     8810    10300     6270     4830     3990
           3      1700     3950     5340    e1670    e1620    e2200    46400     8490     9830     6000     4700     4920
           4      1710     3920     5830    e1660    e1600    e2250    44200     8100    10000     5790     4440     7740
           5      1850     3810     6010    e1650    e1580    e2300    42500     7790     9720     5790     4120    12700

           6      1820     3650     5900    e1650    e1560    e2500    40900     7520     9860     7040     3910    17200
           7      1870     3500     5710    e1650    e1540    e2800    39200     7710    10200     8240     3780    20600
           8      1930     3360     5140    e1650    e1520    e3300    37600     8430    10900     8520     3580    22700
           9     e1930     3100     4540    e1660    e1510    e3500    35800    10400    11800     8200     3320    23300
          10     e1920     2880     4090    e1670    e1500    e3600    33900    13400    12500     8210     3160    22200

          11     e2030     3010     3870    e1680    e1500    e3700    31800    17400    12900     8470     3140    20300
          12     e2100     2860    e3800    e1690    e1500    e3700    29600    21900    13600     8780     3670    17700
          13     e2100     2570    e3700    e1700    e1520    e3650    27300    25600    13900     9120     4310    14800
          14      2030     2830     4350    e1720    e1530    e3600    25200    28300    13400     8790     5520    13300
          15      2070     2720     4560    e1740    e1540    e3500    23300    30300    12500     7860     6550    12400

          16      2090     2570     4480    e1760    e1550    e3600    21500    31000    11600     7050     6730    12000
          17      2360    e2400     4090    e1780    e1560    e3800    19900    29800    10900     6530     7010    11600
          18      3140    e2200     3590    e1790    e1570    e4300    18300    27900    10200     6170     7720    11100
          19      5630    e2100     3070    e1800    e1600    e5100    16700    25800     9430     6220     7840    10300
          20      7740    e2000     2480    e1800    e1630    e7700    15700    23500     8680     6100     7390     9420

          21      8000     2000     2270    e1800    e1680   e11000    15000    21300     7750     5770     6660     8470
          22     e7400     2180     2090    e1800    e1750   e13500    14400    19900     7210     5510     5980     7600
          23     e6400     2770    e1950    e1790    e1820   e15500    13800    18400     7100     5560     5570     7110
          24     e5700     3310    e1850    e1780    e1880   e18000    13200    16800     6850     5660     6090     6830
          25     e5200     3540    e1800    e1770    e1950   e21000    12600    15300     6650     5460     7480     6630

          26      4810     3820    e1750    e1760    e2000   e23500    12000    13700     6780     5240     7340     6330
          27      4510     4290    e1740    e1750    e2000   e26000    11400    12100     7180     5060     6490     6300
          28      4280     4670    e1730    e1740    e2050   e31000    10800    10700     7460     5080     5710     6250
          29      4180     4730    e1720    e1720      ---   e40000    10200    10100     7410     5290     5020     6210
          30      4120     4740    e1710    e1700      ---    45900     9680     9990     7140     5190     4560     6100
          31      3960      ---    e1700    e1680      ---    49100      ---    10300      ---     5060     4240      ---

         TOTAL  107910    97390   110710    53380    46360   363850   770780   509950   294050   204670   165790   340170
         MEAN     3481     3246     3571     1722     1656    11740    25690    16450     9802     6602     5348    11340
         MAX      8000     4740     6010     1800     2050    49100    49700    31000    13900     9120     7840    23300
         MIN      1640     2000     1700     1650     1500     2100     9680     7520     6650     5060     3140     3990
         AC-FT  214000   193200   219600   105900    91960   721700  1529000  1011000   583200   406000   328800   674700

         STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1904 - 1999, BY WATER YEAR (WY)

         MEAN     1446     1240     1021      852      838     2736    10120     5522     4064     3520     1815     1550
         MAX      5127     5218     3571     2030     3520    15370    56210    36510    19340    25270    17050    11340
         (WY)     1995     1972     1999     1996     1998     1995     1997     1950     1962     1975     1993     1999
         MIN      12.1     30.5     17.8     18.8     2.87     42.1      954      373      151     88.8     30.6     20.3
         (WY)     1937     1937     1937     1937     1937     1937     1938     1934     1934     1936     1934     1936

         SUMMARY STATISTICS           FOR 1998 CALENDAR YEAR        FOR 1999 WATER YEAR           WATER YEARS 1904 - 1999

         ANNUAL TOTAL                     2397170                    3065010
         ANNUAL MEAN                         6568                       8397                       2877
         HIGHEST ANNUAL MEAN                                                                      10070              1997
         LOWEST ANNUAL MEAN                                                                         244              1934
         HIGHEST DAILY MEAN                 29600     May 21           49700     Apr  1          127000       Apr 18 1997
         LOWEST DAILY MEAN                   1560     Sep 29            1500     Feb 10               1.8     Sep  2 1977
         ANNUAL SEVEN-DAY MINIMUM            1640     Sep 27            1510     Feb  8               2.5     Feb 12 1937
         INSTANTANEOUS PEAK FLOW                                     a 50000     Mar 31        b 137000       Apr 18 1997
         INSTANTANEOUS PEAK STAGE                                         44.26  Apr  1            c 54.35    Apr 22 1997
         ANNUAL RUNOFF (AC-FT)            4755000                    6079000                    2085000
         10 PERCENT EXCEEDS                 16700                      20800                       6350
         50 PERCENT EXCEEDS                  3960                       5240                       1400
         90 PERCENT EXCEEDS                  1840                       1700                        280

         a  Gage height 44.11 ft
         b  Maximum observed, affected by breakout from Red River about 20 miles upstream of gage that entered Lake River
              about 2 miles upstream from the confluence with the Red River
         c  From floodmark
         e  Estimated

                                                     WATER-QUALITY RECORDS

PERIOD OF RECORD.--Water years 1949, 1956 to current year.

REMARKS.--Quality assurance sample also collected at this location.


                                 WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999

                                 DIS-     PH       PH       SPE-
                               CHARGE,   WATER    WATER    CIFIC    SPE-                       HARD-             MAGNE-
                                INST.    WHOLE    WHOLE     CON-    CIFIC                      NESS    CALCIUM    SIUM,
                                CUBIC    FIELD     LAB     DUCT-    CON-    TEMPER-  TEMPER-   TOTAL    DIS-      DIS-
                                 FEET   (STAND-  (STAND-   ANCE     DUCT-    ATURE    ATURE    (MG/L    SOLVED   SOLVED
              DATE      TIME     PER      ARD      ARD      LAB     ANCE      AIR     WATER     AS      (MG/L    (MG/L
                                SECOND   UNITS)   UNITS)  (US/CM)  (US/CM)  (DEG C)  (DEG C)   CACO3)   AS CA)   AS MG)
                               (00061)  (00400)  (00403)  (90095)  (00095)  (00020)  (00010)  (00900)  (00915)  (00925)

          OCT
            16...       1140     2080      --       --       --      592      9.5      9.0       --       --       --
          DEC
            14...       1130     4210      --       --       --       --      4.0       .0       --       --       --
          FEB
            25...       1445     2070      --       --       --      622       --      1.4       --       --       --
          APR
            02...       1215    48100     7.9       --      376      358      3.0      2.5      150      37       15
          MAY
            21...       1045    21300      --       --       --      856     19.2     17.0       --       --       --
          JUN
            30...       0950     7020      --       --       --      577     22.5     22.1       --       --       --
          AUG
            23...       1400     5510     8.3      8.1      506      511     21.5     21.5      240      54       25


                                                                 ANC                                        SOLIDS,
                            POTAS-   SODIUM                    UNFLTRD   CHLO-    FLUO-            SOLIDS,  RESIDUE
                             SIUM,     AD-            SODIUM,  TIT 4.5   RIDE,    RIDE,   SULFATE    DIS-   AT 180
                             DIS-    SORP-             DIS-      LAB     DIS-      DIS-    DIS-     SOLVED   DEG. C
                            SOLVED    TION            SOLVED    (MG/L    SOLVED   SOLVED   SOLVED   (TONS     DIS-
                   DATE     (MG/L    RATIO    SODIUM   (MG/L     AS      (MG/L    (MG/L    (MG/L     PER     SOLVED
                            AS K)            PERCENT   AS NA)   CACO3)   AS CL)   AS F)   AS SO4)    DAY)    (MG/L)
                           (00935)  (00931)  (00932)  (00930)  (90410)  (00940)  (00950)  (00945)  (70302)  (70300)

               OCT
                 16...        --       --       --       --       --       --       --       --       --       --
               DEC
                 14...        --       --       --       --       --       --       --       --       --       --
               FEB
                 25...        --       --       --       --       --       --       --       --       --       --
               APR
                 02...       5.5       .4      13       11       134      8.9       .20     56      30300     233
               MAY
                 21...        --       --       --       --       --       --       --       --       --       --
               JUN
                 30...        --       --       --       --       --       --       --       --       --       --
               AUG
                 23...       4.3       .4      11       14       185     10         .20     81       4790     322


                           SOLIDS,
                           SUM OF                                        MANGA-            MOLYB-   SELE-    STRON-
                           CONSTI-  ARSENIC   IRON,    LEAD,   LITHIUM   NESE,   MERCURY   DENUM,   NIUM,     TIUM,
                           TUENTS,    DIS-     DIS-     DIS-     DIS-     DIS-     DIS-     DIS-     DIS-     DIS-
                             DIS-    SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED
                   DATE     SOLVED   (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L
                            (MG/L)   AS AS)   AS FE)   AS PB)   AS LI)   AS MN)   AS HG)   AS MO)   AS SE)   AS SR)
                           (70301)  (01000)  (01046)  (01049)  (01130)  (01056)  (71890)  (01060)  (01145)  (01080)

               OCT
                 16...        --       --       --       --       --       --       --       --       --       --
               DEC
                 14...        --       --       --       --       --       --       --       --       --       --
               FEB
                 25...        --       --       --       --       --       --       --       --       --       --
               APR
                 02...       215       3       500      <.00     20       50       <.1      2.0       1       180
               MAY
                 21...        --       --       --       --       --       --       --       --       --       --
               JUN
                 30...        --       --       --       --       --       --       --       --       --       --
               AUG
                 23...       300       5        90      1.0      20       10       <.1      1.0      <1       260

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