RED RIVER OF THE NORTH BASIN

                                        05051500  RED RIVER OF THE NORTH AT WAHPETON, ND

LOCATION.--Lat 46o15'55", long 96o35'40", in NE1/4 sec.8, T.132 N., R.47 W., Richland County, Hydrologic Unit 09020104, on left
   bank in Wahpeton, 800 ft downstream from confluence of Bois de Sioux and Otter Tail Rivers, and at mile 548.6.

DRAINAGE AREA.--4,010 mi2, approximately.

                                                    WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--April to October 1942, March 1943 to current year. Gage-height records collected in this vicinity since 1917
   are contained in reports of the National Weather Service.

GAGE.--Water-stage recorder and concrete and wooden dam. Datum of gage is 942.97 ft above sea level. Prior to Aug. 6, 1943,
   National Weather Service nonrecording gage 800 ft upstream, converted to present datum. Aug. 6, 1943, to Oct. 27, 1950,
   nonrecording gage at present site and datum.

REMARKS.--Records fair. Flow regulated by Orwell Reservoir, capacity, 14,100 acre-ft at elevation 1,070 ft above National
   Geodetic Vertical Datum of 1929, adjustment of 1912; Lake Traverse, capacity, 137,000 acre-ft, available for flood control;
   numerous other controlled lakes and ponds and several powerplants.

EXTREMES OUTSIDE PERIOD OF RECORD.--A stage of 17.0 ft, discharge, 10,500 ft3/s, occurred in the spring of 1897.

                           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       516      726     1100     e540     e750     e740     1340     1330     1450     1490      815      776
           2       510      708     1290     e520     e720     e760     1300     1300     1470     1520      789      834
           3       485      722     1290     e500     e700     e780     1330     1290     1440     1580      574      922
           4       459      704     1390     e500     e670     e800     1510     1300     1380     1530      330     1140
           5       476      706     1420     e500     e660     e840     1710     1320     1820     1470      293     1200

           6       461      756     1420     e490     e660     e900     1570     1320     3130     1430      279     1150
           7       463      865     1410     e490     e650    e1000     1370     1330     4090     1410      442     1080
           8       552      957     1440     e500     e640    e1150     1250     1350     3880     1460      697     1120
           9       679      945     1560     e500     e620    e1300     1200     1380     2880     1450      779     1290
          10       635      611     1600     e500     e620    e1400     1190     1430     2180     1470      939     1310

          11       553      537     1480     e500     e620    e1500     1170     1490     2240     1430      900     1320
          12       543     e500     1280     e500     e600    e1400     1160     1630     2310     1340     1160     1390
          13       544     e520     1190     e510     e600    e1300     1220     1690     2260     1300     2560     1350
          14       544     e580     1170     e520     e600     1350     1350     1640     2210     1410     3160     1320
          15       529     e640     1140     e540     e600     1380     1380     1680     2170     1430     2940     1290

          16       589     e620     1080     e560     e600     1500     1420     1760     2130     1420     2180     1250
          17       687     e560     e920     e600     e600     1810     1400     1760     1990     1370     1600     1220
          18       806     e520     e800     e630     e600     1910     1340     1740     1830     1380     1500     1200
          19       899     e480     e710     e660     e600     1900     1320     1710     1790     1380     1510     1170
          20       890     e450     e600     e680     e600     1840     1330     1650     1780     1340     1440     1150

          21       858     e500     e520     e700     e590     1600     1360     1580     1780     1240     1350     1080
          22       809     e600     e500     e740     e590     1470     1380     1470     1940     1090     1280      973
          23       776     e700     e500     e760     e600     1370     1380     1330     2150     1000     1370      925
          24       755     e760     e500     e800     e620     1260     1370     1310     2180      985     1260      860
          25       740     e820     e500     e810     e640     1240     1370     1300     1980      962     1060      843

          26       737      887     e510     e820     e660     1170     1360     1300     1700      943      876      825
          27       732      909     e520     e840     e700     1100     1370     1290     1550      960      827      797
          28       796      929     e520     e830     e740     1230     1360     1260     1520     1080      734      798
          29       916      951     e540     e820      ---     1890     1350     1180     1510      996      648      815
          30       923      984     e540     e810      ---     1810     1340     1170     1500      932      659      824
          31       852      ---     e540     e800      ---     1440      ---     1290      ---      892      696      ---

         TOTAL   20714    21147    29980    19470    17850    41140    40500    44580    62240    39690    35647    32222
         MEAN      668      705      967      628      638     1327     1350     1438     2075     1280     1150     1074
         MAX       923      984     1600      840      750     1910     1710     1760     4090     1580     3160     1390
         MIN       459      450      500      490      590      740     1160     1170     1380      892      279      776
         AC-FT   41090    41950    59470    38620    35410    81600    80330    88420   123500    78730    70710    63910

         STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1942 - 1999, BY WATER YEAR (WY)

         MEAN      339      318      293      278      300      693     1418     1124     1074      802      443      350
         MAX      1599      952      967      678      868     2629     8717     3344     2675     2787     2496     2148
         (WY)     1994     1987     1999     1986     1998     1995     1997     1997     1962     1993     1993     1993
         MIN      5.72     7.40     6.60     8.81     18.0     84.3      138     22.5     90.0     65.6     53.5     2.18
         (WY)     1977     1977     1977     1977     1977     1977     1977     1977     1977     1977     1977     1976

         SUMMARY STATISTICS           FOR 1998 CALENDAR YEAR        FOR 1999 WATER YEAR           WATER YEARS 1942 - 1999

         ANNUAL TOTAL                      357039                     405180
         ANNUAL MEAN                          978                       1110                        616
         HIGHEST ANNUAL MEAN                                                                       1600              1997
         LOWEST ANNUAL MEAN                                                                          54.0            1977
         HIGHEST DAILY MEAN                  4170     Jun 29            4090     Jun  7           12700       Apr 15 1997
         LOWEST DAILY MEAN                    175     Sep 23             279     Aug  6               1.7     Aug 28 1976
         ANNUAL SEVEN-DAY MINIMUM             350     Sep 21             481     Oct  1               1.7     Aug 28 1976
         INSTANTANEOUS PEAK FLOW                                        4220     Jun  7           12800       Apr 15 1997
         INSTANTANEOUS PEAK STAGE                                         11.02  Jun  7            a 19.42    Apr  6 1997
         INSTANTANEOUS LOW FLOW                                                                       1.7     Aug 28 1976
         ANNUAL RUNOFF (AC-FT)             708200                     803700                     446400
         10 PERCENT EXCEEDS                  1590                       1700                       1460
         50 PERCENT EXCEEDS                   887                       1080                        382
         90 PERCENT EXCEEDS                   450                        520                        108

         a  Backwater from ice, from floodmark
         e  Estimated


                                                     WATER-QUALITY RECORDS

PERIOD OF RECORD.--Water year 1972 to current year.


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

                           DIS-     DIS-    SAMPLE             PH       PH       SPE-
                         CHARGE,  CHARGE,    LOC-             WATER    WATER    CIFIC    SPE-                       HARD-
                            IN     INST.    ATION,            WHOLE    WHOLE     CON-    CIFIC                      NESS
                          CUBIC    CUBIC    CROSS   OXYGEN,   FIELD     LAB     DUCT-    CON-    TEMPER-  TEMPER-   TOTAL
                           FEET     FEET   SECTION    DIS-   (STAND-  (STAND-   ANCE     DUCT-    ATURE    ATURE    (MG/L
        DATE      TIME     PER      PER    (FT FM    SOLVED    ARD      ARD      LAB     ANCE      AIR     WATER     AS
                          SECOND   SECOND   R  BK)   (MG/L)   UNITS)   UNITS)  (US/CM)  (US/CM)  (DEG C)  (DEG C)   CACO3)
                         (00060)  (00061)  (72103)  (00300)  (00400)  (00403)  (90095)  (00095)  (00020)  (00010)  (00900)

       OCT
        05...     1555      --      463       --       --       --       --       --      406      13.0    11.0       --
       DEC
        11...     0925      --     1490       --       --       --       --       --      813       4.5      .5       --
       JAN
        26...     0910      --      824       --       --       --       --       --      123     -10.0      .5       --
       FEB
        09...     1310     620       --      30.0    13.2      7.6       --       --      431       --       .0       --
        09...     1315      --       --      70.0    13.0      7.7       --       --      432       --       .0       --
        09...     1320      --       --     100.0    13.0      7.7       --       --      430       --       .0       --
       MAR
        16...     1635      --     1530       --       --       --       --       --      829       2.0     2.0       --
        27...     0900      --     1130       --       --      8.0       --      513      561       4.5     4.0      260
       MAY
        04...     1645      --     1330       --       --       --       --       --      490      22.0    16.0       --
       JUN
        10...     0840      --     2100       --       --       --       --       --      497      21.0    22.0       --
       JUL
        15...     1400      --     1410       --       --      8.0      8.0      560      558      27.0    26.0      270
       SEP
        02...     1605      --      843       --       --       --       --       --      588      16.0    21.0       --


                                                                              ANC
                                MAGNE-   POTAS-   SODIUM                    UNFLTRD   CHLO-    FLUO-            SOLIDS,
                      CALCIUM    SIUM,    SIUM,     AD-            SODIUM,  TIT 4.5   RIDE,    RIDE,   SULFATE    DIS-
                       DIS-      DIS-     DIS-    SORP-             DIS-      LAB     DIS-      DIS-    DIS-     SOLVED
                       SOLVED   SOLVED   SOLVED    TION            SOLVED    (MG/L    SOLVED   SOLVED   SOLVED   (TONS
              DATE     (MG/L    (MG/L    (MG/L    RATIO    SODIUM   (MG/L     AS      (MG/L    (MG/L    (MG/L     PER
                       AS CA)   AS MG)   AS K)            PERCENT   AS NA)   CACO3)   AS CL)   AS F)   AS SO4)    DAY)
                      (00915)  (00925)  (00935)  (00931)  (00932)  (00930)  (90410)  (00940)  (00950)  (00945)  (70302)

          OCT
            05...        --       --       --       --       --       --       --       --       --       --       --
          DEC
            11...        --       --       --       --       --       --       --       --       --       --       --
          JAN
            26...        --       --       --       --       --       --       --       --       --       --       --
          FEB
            09...        --       --       --       --       --       --       --       --       --       --       --
            09...        --       --       --       --       --       --       --       --       --       --       --
            09...        --       --       --       --       --       --       --       --       --       --       --
          MAR
            16...        --       --       --       --       --       --       --       --       --       --       --
            27...       51       33       4.6       .4      11       15       196      14        .10     83      1200
          MAY
            04...        --       --       --       --       --       --       --       --       --       --       --
          JUN
            10...        --       --       --       --       --       --       --       --       --       --       --
          JUL
            15...       50       35       3.8       .4      11       15       213      11        .20     93      1320
          SEP
            02...        --       --       --       --       --       --       --       --       --       --       --


                      SOLIDS,  SOLIDS,
                      RESIDUE  SUM OF                                        MANGA-            MOLYB-   SELE-    STRON-
                      AT 180   CONSTI-  ARSENIC   IRON,    LEAD,   LITHIUM   NESE,   MERCURY   DENUM,   NIUM,     TIUM,
                       DEG. C  TUENTS,    DIS-     DIS-     DIS-     DIS-     DIS-     DIS-     DIS-     DIS-     DIS-
                        DIS-     DIS-    SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED
              DATE     SOLVED   SOLVED   (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L
                       (MG/L)   (MG/L)   AS AS)   AS FE)   AS PB)   AS LI)   AS MN)   AS HG)   AS MO)   AS SE)   AS SR)
                      (70300)  (70301)  (01000)  (01046)  (01049)  (01130)  (01056)  (71890)  (01060)  (01145)  (01080)

          OCT
            05...        --       --       --       --       --       --       --       --       --       --       --
          DEC
            11...        --       --       --       --       --       --       --       --       --       --       --
          JAN
            26...        --       --       --       --       --       --       --       --       --       --       --
          FEB
            09...        --       --       --       --       --       --       --       --       --       --       --
            09...        --       --       --       --       --       --       --       --       --       --       --
            09...        --       --       --       --       --       --       --       --       --       --       --
          MAR
            16...        --       --       --       --       --       --       --       --       --       --       --
            27...       392      319       2       40      <1.0      20       30       <.1     <1.0      <1       240
          MAY
            04...        --       --       --       --       --       --       --       --       --       --       --
          JUN
            10...        --       --       --       --       --       --       --       --       --       --       --
          JUL
            15...       348      336       5       60       1.0      20       10       <.1      1.0      <1       250
          SEP
            02...        --       --       --       --       --       --       --       --       --       --       --

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