RED RIVER OF THE NORTH BASIN
                                                  
                                        05051500  RED RIVER OF THE NORTH AT WAHPETON, ND

LOCATION.--Lat 4615'55", long 9635'40", 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 National Geodetic Vertical Datum of
   1929. 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 good except for estimated daily discharges, which are poor. Flow regulated by; Orwell Reservoir, flood
   storage capacity, 13,300 acre-ft at elevation 1,070 ft, above mean sea level, adjustment of 1912; Mud Lake, flood storage
   capacity, 78,600 acre-ft at elevation 981 ft, above mean sea level, adjustment of 1912; Lake Traverse, flood storage
   capacity, 75,100 acre-ft at elevation 981 ft, above mean sea level, adjustment of 1912; and 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 1999 TO SEPTEMBER 2000
                                                       DAILY MEAN VALUES

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

          1       812      639      510     e450     e390    e1700      801     1090      847      848      874      527
          2       748      626      511     e450     e385    e2000      823     1080      891      853      828      520
          3       699      591      511     e450     e385    e2100      829     1080     1030      849      809      512
          4       696      589      511     e450     e380    e1900      829     1050     1080      836      782      506
          5       732      584      502     e440     e380     1650      809     1030     1060      986      737      495

          6       778      585     e450     e440     e380     1640      803     1020     1040     1060      710      487
          7       789      586     e400     e440     e380     1580      750     1030     1050      990      711      479
          8       810      588     e440     e430     e380     1610      747     1110     1030     1010      713      447
          9       832      584      497     e430     e380     2410      769     1090     1000     1080      705      415
         10       853      589      543     e430     e380     2330      776     1090      980     1080      664      416

         11       856      594     e460     e430     e380     1890      777     1090      987     1070      627      424
         12       852      588     e440     e420     e380     1590      779     1130      966     1140      622      429
         13       859      585     e420     e420     e380     1410      779     1180      960     1340      631      444
         14       836      587     e400     e410     e380     1310      779     1180      944     1490      628      457
         15       810      585     e390     e410     e380     1200      785     1150      931     1380      619      457

         16       775      585     e380     e400     e380     1100      781     1130      945     1150      626      410
         17       734      582     e330     e400     e375     1070      778     1070      955     1160      593      381
         18       718      562     e300     e400     e375     1060      776     1030      943     1260      575      376
         19       704      540     e370     e400     e380     1040      834     1010      926     1410      603      363
         20       679      517     e410     e400     e380     1040     1030     1010      963     1470      603      344

         21       673      480     e430     e395     e390     1030     1080     1000     1010     1280      595      381
         22       673      478     e450     e395     e410     1000     1150     1000     1010     1100      596      433
         23       669      494     e480     e395     e450     1010     1240      992     1010     1060      627      418
         24       659      514     e480     e395     e550      937     1220      976     1000     1040      379      401
         25       654      530     e470     e390     e650      852     1180      974     1020     1050      237      355

         26       653      548     e460     e390     e800      877     1140      943      971     1090      416      212
         27       653      549     e460     e390    e1000      848     1130      898      941     1130      678      225
         28       656      549     e460     e390    e1300      893     1090      883      948     1110      692      487
         29       656      547     e450     e390    e1500      942     1050      851      896     1040      657      619
         30       655      529     e450     e390      ---      857     1070      865      843      946      579      557
         31       652      ---     e450     e390      ---      792      ---      855      ---      905      542      ---

        TOTAL   22825    16904    13815    12810    14660    41668    27384    31887    29177    34213    19658    12977
        MEAN      736      563      446      413      506     1344      913     1029      973     1104      634      433
        MAX       859      639      543      450     1500     2410     1240     1180     1080     1490      874      619
        MIN       652      478      300      390      375      792      747      851      843      836      237      212
        AC-FT   45270    33530    27400    25410    29080    82650    54320    63250    57870    67860    38990    25740

        STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1942 - 2000, BY WATER YEAR (WY)

        MEAN      346      323      296      280      304      704     1410     1122     1073      807      447      351
        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 1999 CALENDAR YEAR        FOR 2000 WATER YEAR           WATER YEARS 1942 - 2000

        ANNUAL TOTAL                      386883                     277978
        ANNUAL MEAN                         1060                        760                        619
        HIGHEST ANNUAL MEAN                                                                       1600              1997
        LOWEST ANNUAL MEAN                                                                          54.0            1977
        HIGHEST DAILY MEAN                  4090     Jun  7            2410     Mar  9           12700       Apr 15 1997
        LOWEST DAILY MEAN                    279     Aug  6             212     Sep 26               1.7     Aug 28 1976
        ANNUAL SEVEN-DAY MINIMUM             369     Dec 14             346     Sep 21               1.7     Aug 28 1976
        INSTANTANEOUS PEAK FLOW                                      a 2630     Mar  9           12800       Apr 15 1997
        INSTANTANEOUS PEAK STAGE                                        b 9.34  Mar  3            c 19.42    Apr  6 1997
        INSTANTANEOUS LOW FLOW                                                                       1.7     Aug 28 1976
        ANNUAL RUNOFF (AC-FT)             767400                     551400                     448300
        10 PERCENT EXCEEDS                  1700                       1130                       1450
        50 PERCENT EXCEEDS                   900                        702                        390
        90 PERCENT EXCEEDS                   500                        390                        109

        a  Gage height, 8.97 ft
        b  Backwater from ice
        c  Bakwater from ice, from floodmark
        e  Estimated
        
        
                                                             WATER-QUALITY RECORDS

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

                                 WATER-QUALITY DATA, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000

                                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
           13...       1340     846       --       --       --      431      13.0    10.5       --       --       --
         DEC
           09...       0940     514       --       --       --      476       -.5      .5       --       --       --
         JAN
           12...       1340     420       --       --       --      514     -10.0      .5       --       --       --
         MAR
           16...       0840    1070       --       --       --      777      -4.0     1.5       --       --       --
         APR
           10...       1520     770      8.2      8.0      477      476       4.0     6.0      230     44.0     29.0
           26...       1010    1120       --       --       --      642      20.0    14.0       --       --       --
         JUL
           06...       1540    1050       --       --       --      563       --     27.5       --       --       --
         AUG
           11...       0910     633      8.1      8.2      429      390      26.5    26.0      200     34.0     27.0


                                                                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    (MG/L    SODIUM    AS      (MG/L    (MG/L    (MG/L     PER     SOLVED
                           AS K)             AS NA)  PERCENT   CACO3)   AS CL)   AS F)   AS SO4)    DAY)    (MG/L)
                          (00935)  (00931)  (00930)  (00932)  (90410)  (00940)  (00950)  (00945)  (70302)  (70300)
                                                        
              OCT
               13...        --       --       --       --       --       --       --       --       --       --
              DEC
                09...        --       --       --       --       --       --       --       --       --       --
              JAN
                12...        --       --       --       --       --       --       --       --       --       --
              MAR
                16...        --       --       --       --       --       --       --       --       --       --
              APR
                10...       3.0       .3     11.0       9       203     13.0       .1     33.0      576      277
                26...        --       --       --       --       --       --       --       --       --       --
              JUL
                06...        --       --       --       --       --       --       --       --       --       --
              AUG
                11...       2.9       .3     10.0      10       194      9.6       .1     15.0      378      221


                          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
                13...        --       --       --       --       --       --       --       --       --       --
              DEC
                09...        --       --       --       --       --       --       --       --       --       --
              JAN
                12...        --       --       --       --       --       --       --       --       --       --
              MAR
                16...        --       --       --       --       --       --       --       --       --       --
              APR
                10...       255      2.0      20       <1      10.0      10       <.1      <1      <1.0      190
                26...        --       --       --       --       --       --       --       --       --       --
              JUL
                06...        --       --       --       --       --       --       --       --       --       --
              AUG
                11...       215      5.0      90       <1      10.0      10       <.1       1      <1.0      150

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