RED RIVER OF THE NORTH BASIN

                                            05056200  EDMORE COULEE NEAR EDMORE, ND

LOCATION.--Lat 48o20'14", long 98o39'33", in NW1/4NW1/4 sec.17, T.156 N., R.62 W., Ramsey County, Hydrologic Unit 09020201, on
   right bank 50 ft upstream from bridge on county highway, 11 mi southwest of Edmore, and about 13 mi upstream from Sweetwater
   Lake.

DRAINAGE AREA.--382 mi2, of which about 100 mi2 is probably noncontributing.

                                                    WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--April to June 1956, June 1957 to current year (seasonal records only since 1982).

REVISED RECORDS.--WSP 1728: Drainage area.

GAGE.--Water-stage recorder. Datum of gage is 1,400.00 ft above sea level. June 26, 1957, to Sept. 30, 1985, water-stage
   recorder at same site at a datum of 1,479.79 ft above sea level. Prior to June 26, 1957, nonrecording gage at same site and
   datum.

REMARKS.--Records fair.

EXTREMES FOR CURRENT YEAR.--Maximum discharge, about 870 ft3/s, Apr. 2, estimated, backwater from ice; maximum gage height,
   87.15 ft, Mar. 31, 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     e850      e43     12        8.1      4.3     1.3
           2       ---      ---      ---      ---      ---     e.00     e870      e39     12        7.3      3.7     1.1
           3       ---      ---      ---      ---      ---     e.00      820      e35     11        6.7      3.4     1.0
           4       ---      ---      ---      ---      ---     e.00      767      e31     11        6.2      3.0     1.0
           5       ---      ---      ---      ---      ---     e.00      538      e30     10        6.0      2.5     1.2

           6       ---      ---      ---      ---      ---     e.00      388      e29      8.9      5.1      2.1     1.1
           7       ---      ---      ---      ---      ---     e.00      299      e28      9.2      4.4      1.8      .91
           8       ---      ---      ---      ---      ---     e.00      354      e29      8.6      4.8      1.5      .79
           9       ---      ---      ---      ---      ---     e.00      365      e32      6.4      5.1      1.4      .70
          10       ---      ---      ---      ---      ---     e.00      433      e36      5.9      5.6      1.1      .59

          11       ---      ---      ---      ---      ---     e.00      506      e40      5.5      5.5      1.5      .51
          12       ---      ---      ---      ---      ---     e.00      543      e47      5.2      4.9      2.1      .49
          13       ---      ---      ---      ---      ---     e.00      564      e60      5.6      4.6      2.3      .46
          14       ---      ---      ---      ---      ---     e.00      486      e80      5.4      6.4      2.1      .40
          15       ---      ---      ---      ---      ---     e.00      399       97      5.4      9.5      2.1      .35

          16       ---      ---      ---      ---      ---     e.00      327       62      5.1     22        3.7      .29
          17       ---      ---      ---      ---      ---     e.00      261       62      4.8     11        3.9      .24
          18       ---      ---      ---      ---      ---     e.00      205       65      4.4      7.4      3.3      .21
          19       ---      ---      ---      ---      ---     e.00      173       65      3.7      8.8      3.7      .19
          20       ---      ---      ---      ---      ---     e.00      159       53      3.0      8.6      3.6      .17

          21       ---      ---      ---      ---      ---     e.00      148       42      3.1      7.0      3.6      .15
          22       ---      ---      ---      ---      ---     e.00      135       39      3.3      7.8      3.7      .14
          23       ---      ---      ---      ---      ---     e.01      128       33      3.3     10        4.2      .12
          24       ---      ---      ---      ---      ---     e.05      112       30      2.7     11        4.8      .11
          25       ---      ---      ---      ---      ---     e.50       94       27      2.5      9.6      4.7      .11

          26       ---      ---      ---      ---      ---    e1.5        82       25     23        8.6      4.1      .11
          27       ---      ---      ---      ---      ---    e5.0        66       22     10        7.5      3.4      .11
          28       ---      ---      ---      ---      ---   e35         e59       19      6.5      6.6      2.8      .10
          29       ---      ---      ---      ---      ---  e120         e53       16      6.8      5.8      2.1      .09
          30       ---      ---      ---      ---      ---  e350         e48       13      8.0      5.2      1.7      .08
          31       ---      ---      ---      ---      ---  e800         ---       13      ---      4.7      1.5      ---

         TOTAL     ---      ---      ---      ---      ---  1312.06    10232     1242    212.3    231.8     89.7    14.12
         MEAN      ---      ---      ---      ---      ---     42.3      341     40.1     7.08     7.48     2.89      .47
         MAX       ---      ---      ---      ---      ---      800      870       97       23       22      4.8      1.3
         MIN       ---      ---      ---      ---      ---      .00       48       13      2.5      4.4      1.1      .08
         AC-FT     ---      ---      ---      ---      ---     2600    20300     2460      421      460      178       28

         STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1957 - 1999, BY WATER YEAR (WY)

         MEAN      .97      .32     .055     .000      .44     28.2      121     37.2     9.66     19.8     15.9     1.84
         MAX      9.79     5.73      .98     .000     11.6      232      529      309      141      306      437     45.4
         (WY)     1986     1981     1981     1958     1981     1995     1997     1997     1998     1993     1993     1993
         MIN      .000     .000     .000     .000     .000     .000     .000     .000     .000     .000     .000     .000
         (WY)     1959     1959     1958     1958     1959     1960     1991     1958     1958     1958     1958     1958

         SUMMARY STATISTICS                  WATER YEARS 1957 - 1999

         ANNUAL MEAN                          a 14.2
         HIGHEST ANNUAL MEAN                  a 47.7            1974
         LOWEST ANNUAL MEAN                     a .028          1958
         HIGHEST DAILY MEAN                   1770       Apr 24 1997
         LOWEST DAILY MEAN                        .00    Jul  1 1957
         ANNUAL SEVEN-DAY MINIMUM                 .00    Jul  1 1957
         INSTANTANEOUS PEAK FLOW              1830       Apr 24 1997
         INSTANTANEOUS PEAK STAGE               87.95    Apr 24 1997
         ANNUAL RUNOFF (AC-FT)             a 10280
         10 PERCENT EXCEEDS                     36
         50 PERCENT EXCEEDS                       .00
         90 PERCENT EXCEEDS                       .00

         a  Based on complete water years only (1958-82, 1994)
         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-    BARO-   OXYGEN,             PH       PH       SPE-
                               CHARGE,   METRIC    DIS-             WATER    WATER    CIFIC    SPE-
                                INST.    PRES-    SOLVED            WHOLE    WHOLE     CON-    CIFIC
                                CUBIC     SURE    (PER-   OXYGEN,   FIELD     LAB     DUCT-    CON-    TEMPER-  TEMPER-
                                 FEET     (MM      CENT     DIS-   (STAND-  (STAND-   ANCE     DUCT-    ATURE    ATURE
              DATE      TIME     PER       OF     SATUR-   SOLVED    ARD      ARD      LAB     ANCE      AIR     WATER
                                SECOND    HG)     ATION)   (MG/L)   UNITS)   UNITS)  (US/CM)  (US/CM)  (DEG C)  (DEG C)
                               (00061)  (00025)  (00301)  (00300)  (00400)  (00403)  (90095)  (00095)  (00020)  (00010)

          MAR
            29...       1600    120        --       --     10.8      7.1      7.3      506      485      8.0      1.5
            31...       1100    812        --       --       --       --       --       --      460      5.0      1.0
          APR
            07...       1145    291       717       89     11.5      7.8      7.6      604      603      5.0      2.0
            14...       1120    493        --       --       --       --       --       --      546      7.5      8.5
          MAY
            04...       0910     31       710       91      8.5      8.3      8.1      905      917     15.0     15.0
          JUN
            08...       1555      8.7     722      176     13.5      8.9      9.0     1300     1370     27.0     25.7
          AUG
            03...       0815      3.4     730        9      4.2      8.4      8.5     1360     1360     15.5     20.5


                                                                                       ANC
                       HARD-             MAGNE-   POTAS-   SODIUM                    UNFLTRD   CHLO-    FLUO-
                       NESS    CALCIUM    SIUM,    SIUM,     AD-            SODIUM,  TIT 4.5   RIDE,    RIDE,   SULFATE
                       TOTAL    DIS-      DIS-     DIS-    SORP-             DIS-      LAB     DIS-      DIS-    DIS-
                       (MG/L    SOLVED   SOLVED   SOLVED    TION            SOLVED    (MG/L    SOLVED   SOLVED   SOLVED
              DATE      AS      (MG/L    (MG/L    (MG/L    RATIO    SODIUM   (MG/L     AS      (MG/L    (MG/L    (MG/L
                       CACO3)   AS CA)   AS MG)   AS K)            PERCENT   AS NA)   CACO3)   AS CL)   AS F)   AS SO4)
                      (00900)  (00915)  (00925)  (00935)  (00931)  (00932)  (00930)  (90410)  (00940)  (00950)  (00945)

          MAR
            29...       170      39       18       14        1       26        30       86      5.3       .10     150
            31...        --       --       --       --       --       --       --       --       --       --       --
          APR
            07...       210      48       21       14        1       28        40      117     13         .10     170
            14...        --       --       --       --       --       --       --       --       --       --       --
          MAY
            04...       360      82       38       22        1       24        56      233     22         .20     250
          JUN
            08...       440      80       59       18        3       40       140      271     34         .20     430
          AUG
            03...       410      75       55       19        3       44       160      322     39         .20     390


                       NITRO-   NITRO-   NITRO-   NITRO-                     NITRO-   PHOS-                     SOLIDS,
                        GEN,   GEN,AM-    GEN,     GEN,    NITRO-             GEN,   PHORUS            SOLIDS,  RESIDUE
                      AMMONIA  MONIA +  NITRATE  NO2+NO3    GEN,    NITRO-  NITRITE   ORTHO,   PHOS-     DIS-   AT 180
                        DIS-   ORGANIC    DIS-     DIS-   ORGANIC    GEN,     DIS-    DIS-    PHORUS    SOLVED   DEG. C
                       SOLVED   TOTAL    SOLVED   SOLVED   TOTAL    TOTAL    SOLVED  SOLVED    TOTAL    (TONS     DIS-
              DATE     (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L   (MG/L     (MG/L     PER     SOLVED
                       AS N)    AS N)    AS N)    AS N)    AS N)    AS N)    AS N)   AS P)     AS P)     DAY)    (MG/L)
                      (00608)  (00625)  (00618)  (00631)  (00605)  (00600)  (00613)  (00671)  (00665)  (70302)  (70300)

          MAR
            29...       .424     1.5      1.60    1.65      1.1      3.1      .048     .526     .587   104        320
            31...        --       --       --       --       --       --       --       --       --       --       --
          APR
            07...       .178     1.5      1.67    1.73      1.3      3.2      .060     .436     .554   302        385
            14...        --       --       --       --       --       --       --       --       --       --       --
          MAY
            04...       .040     1.6       --      .061     1.6      1.7     <.010     .208     .294    54.0      639
          JUN
            08...      <.020     1.8       --     <.050      --       --     <.010     .205     .268    22.3      952
          AUG
            03...       .026     2.1       --     <.050     2.1       --     <.010     .389     .497     8.65     954

                           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
                 29...       318       2       80      10        20       190      <.1      7.0       2       150
                 31...        --       --       --       --       --       --       --       --       --       --
               APR
                 07...       386       3       70      <1.0      20        50      <.1      2.0       1       180
                 14...        --       --       --       --       --       --       --       --       --       --
               MAY
                 04...       611       4       50      <1.0      40        70      <.1      1.0       1       350
               JUN
                 08...       925       7       30      <1.0      80        50      <.1      1.0      <1       450
               AUG
                 03...       933       8       30      <1.0      90        40      <.1      1.0       1       440

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