RED RIVER OF THE NORTH BASIN

                                              05059600  MAPLE RIVER NEAR HOPE, ND

LOCATION.--Lat 47o19'30", long 97o47'25", in NW1/4NW1/4 sec.4, T.144 N., R.56 W., Steele County, Hydrologic Unit 09020205, 100
   ft downstream from box culvert on State Highway 38, 500 ft east of the intersection of State Highways 32 and 38, and 3 mi
   west of Hope.

DRAINAGE AREA.--20.2 mi2, of which about 2.8 mi2 is probably noncontributing.

                                                    WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--October 1964 to current year (seasonal records only since 1983).

GAGE.--Water-stage recorder. Datum of gage is 1,296.62 ft above sea level.

REMARKS.--Records fair except those below 1.0 ft3/s and those for estimated daily discharges, which are poor.

EXTREMES FOR CURRENT YEAR.--Maximum discharge, 334 ft3/s, May 11, gage height, 5.72 ft; maximum gage height, 6.19 ft, Mar. 22,
   backwater from ice; no flow many days.

                           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       ---      ---      ---      ---      ---     e.00     29       2.0       .83      .00      .06      .00
           2       ---      ---      ---      ---      ---     e.00     22       1.8       .79      .00      .00      .00
           3       ---      ---      ---      ---      ---     e.00     15       1.8       .78      .00      .00      .00
           4       ---      ---      ---      ---      ---     e.00     11       2.0       .58      .00      .00      .00
           5       ---      ---      ---      ---      ---     e.00      8.8    13         .41      .00      .00      .02

           6       ---      ---      ---      ---      ---     e.00     25      37         .26      .00      .00      .11
           7       ---      ---      ---      ---      ---     e.00     78      35         .22      .00      .00      .01
           8       ---      ---      ---      ---      ---     e.00     71      49         .18      .00      .00      .00
           9       ---      ---      ---      ---      ---     e.00     36      54         .18      .00      .00      .00
          10       ---      ---      ---      ---      ---     e.00     19     245         .11      .00      .00      .00

          11       ---      ---      ---      ---      ---     e.00     11     272         .05     8.8       .00      .00
          12       ---      ---      ---      ---      ---     e.00     e9.0   138         .01    10         .00      .20
          13       ---      ---      ---      ---      ---     e.00     e8.0    95         .00     4.4       .00      .28
          14       ---      ---      ---      ---      ---     e.00     e7.7    79         .00     2.5       .00      .20
          15       ---      ---      ---      ---      ---     e.00     e7.4    88         .00     1.7       .00      .11

          16       ---      ---      ---      ---      ---     e.00     e7.0    69         .00     1.3       .00      .02
          17       ---      ---      ---      ---      ---     e.00     e6.6    53         .00      .95      .00      .00
          18       ---      ---      ---      ---      ---     e.00     e6.0    38         .00      .64      .00      .00
          19       ---      ---      ---      ---      ---     e.00     e5.6    27         .00      .53      .00      .00
          20       ---      ---      ---      ---      ---    e1.0      e5.0    18         .00      .40      .00      .00

          21       ---      ---      ---      ---      ---   e10        e4.5    12         .00      .21      .00      .00
          22       ---      ---      ---      ---      ---   e50        e4.0     9.1       .00      .18      .00      .00
          23       ---      ---      ---      ---      ---  e150        e3.5     6.7       .00      .21      .00      .00
          24       ---      ---      ---      ---      ---  e200        e3.3     5.2       .00      .20      .00      .00
          25       ---      ---      ---      ---      ---  e190        e3.0     3.9       .00      .08      .00      .00

          26       ---      ---      ---      ---      ---  e170         2.9     3.0       .00      .01      .00      .00
          27       ---      ---      ---      ---      ---   135         2.9     2.3       .00     1.1       .00      .00
          28       ---      ---      ---      ---      ---    81         2.8     1.7       .00     1.2       .00      .00
          29       ---      ---      ---      ---      ---    62         2.5     1.3       .00      .63      .00      .00
          30       ---      ---      ---      ---      ---    45         2.2      .99      .00      .36      .00      .00
          31       ---      ---      ---      ---      ---    25         ---      .96      ---      .20      .00      ---

         TOTAL     ---      ---      ---      ---      ---  1119.00    419.7  1364.75     4.40    35.60     0.06     0.95
         MEAN      ---      ---      ---      ---      ---     36.1     14.0     44.0      .15     1.15     .002     .032
         MAX       ---      ---      ---      ---      ---      200       78      272      .83       10      .06      .28
         MIN       ---      ---      ---      ---      ---      .00      2.2      .96      .00      .00      .00      .00
         AC-FT     ---      ---      ---      ---      ---     2220      832     2710      8.7       71       .1      1.9

         STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1965 - 1999, BY WATER YEAR (WY)

         MEAN     .060     .003     .000     .000     .000     11.3     15.7     3.56     2.61     4.64      .53      .51
         MAX      1.07     .054     .000     .000     .006     41.8     63.8     44.0     34.5     65.3     7.95     15.3
         (WY)     1966     1966     1965     1965     1981     1987     1997     1999     1968     1993     1993     1994
         MIN      .000     .000     .000     .000     .000     .000     .007     .000     .000     .000     .000     .000
         (WY)     1965     1965     1965     1965     1965     1969     1991     1980     1973     1973     1967     1967

         SUMMARY STATISTICS                  WATER YEARS 1965 - 1999

         ANNUAL MEAN                           a 2.82
         HIGHEST ANNUAL MEAN                   a 5.55           1969
         LOWEST ANNUAL MEAN                    a  .002          1981
         HIGHEST DAILY MEAN                    560       Mar 31 1997
         LOWEST DAILY MEAN                        .00    Oct  1 1964
         ANNUAL SEVEN-DAY MINIMUM                 .00    Oct  1 1964
         INSTANTANEOUS PEAK FLOW               900       Apr 18 1979
         INSTANTANEOUS PEAK STAGE                8.83    Mar 31 1997
         ANNUAL RUNOFF (AC-FT)              a 2040
         10 PERCENT EXCEEDS                      5.0
         50 PERCENT EXCEEDS                       .00
         90 PERCENT EXCEEDS                       .00

         a  Based on complete water years only (1965-82)
         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-     PH       SPE-
                                    CHARGE,   WATER    CIFIC    SPE-                       HARD-             MAGNE-
                                     INST.    WHOLE     CON-    CIFIC                      NESS    CALCIUM    SIUM,
                                     CUBIC    FIELD    DUCT-    CON-    TEMPER-  TEMPER-   TOTAL    DIS-      DIS-
                                      FEET   (STAND-   ANCE     DUCT-    ATURE    ATURE    (MG/L    SOLVED   SOLVED
                   DATE      TIME     PER      ARD      LAB     ANCE      AIR     WATER     AS      (MG/L    (MG/L
                                     SECOND   UNITS)  (US/CM)  (US/CM)  (DEG C)  (DEG C)   CACO3)   AS CA)   AS MG)
                                    (00061)  (00400)  (90095)  (00095)  (00020)  (00010)  (00900)  (00915)  (00925)

               MAR
                 23...       1345   148        7.8      373      380     11.0      1.0      130      30       14
               MAY
                 12...       1045   138         --       --      533     10.5     11.0       --       --       --
               JUL
                 20...       1400      .30      --       --     1670     29.0     25.0       --       --       --


                                                                 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    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)

               MAR
                 23...       6.0       .8      25       21       76       9.0       .10     94       103      258
               MAY
                 12...        --       --       --       --       --       --       --       --       --       --
               JUL
                 20...        --       --       --       --       --       --       --       --       --       --


                           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)

               MAR
                 23...       220       1       90      <1.0      20       100      <.1     <1.0      <1       200
               MAY
                 12...        --       --       --       --       --       --       --       --       --       --
               JUL
                 20...        --       --       --       --       --       --       --       --       --       --

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