RED RIVER OF THE NORTH BASIN

                                     05102500  RED RIVER OF THE NORTH AT EMERSON, MANITOBA
                                                 (International gaging station)

LOCATION.--Lat 49o00'30", long 97o12'40", in sec.2, T.1, R.2 E., Hydrologic Unit 09020311, on right bank 1,500 ft downstream
   from Canadian National Railway bridge in Emerson, 0.8 mi downstream from international boundary, 3.6 mi downstream from
   Pembina River, and at mile 154.3.

DRAINAGE AREA.--40,200 mi2, approximately, includes 3,800 mi2 in closed basins.

                                                    WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--March to November 1902 (gage heights only), May 1912 to September 1929 (monthly discharge only, published in
   WSP 1308), October 1929 to current year.

GAGE.--Water-stage recorder. Datum of gage is Geodetic Survey of Canada Datum of 1929. See WSP 1728 or 1913 for history of
   changes prior to Apr. 10, 1953.

COOPERATION.--This station is one of the international gaging stations maintained by Canada under agreement with the United
   States. Records provided by Water Survey of Canada.

                           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      1870     4630    e4660    e2660    e2000    e2140    33600    22600    18600    13700     5830     6710
           2      1820     4450    e4800    e2630    e2020    e2160    37100    20200    17300    13500     5690     5900
           3      1810     4340    e4840    e2590    e2040    e2210    41000    17800    16400    12900     5540     5230
           4      1820     4240    e4910    e2520    e2050    e2310    44100    15700    15900    12000     5370     4770
           5      1900     4170    e5090    e2480    e2060    e2440    47300    13800    15400    11200     5230     4800

           6      1960     4100    e5330    e2450    e2050    e2600    48000    12500    15000    10400     5050     7100
           7      2020     3990    e5510    e2420    e2050    e2760    48400    11500    15000     9850     4840    10200
           8      2080     3880    e5650    e2390    e2060    e2940    50100    11100    15000     9850     4630    12800
           9      2090     3740    e5620    e2370    e2060    e3110    54000    10700    15100    10200     4410    15100
          10      2080     3600    e5510    e2350    e2070    e3290    56500    10900    15200    10500     4240    16800

          11      2080     3460    e5230    e2320    e2070    e3460    57900    13000    15600    10500     4060    18000
          12      2080     3250    e4870    e2300    e2070    e3600    58600    15500    16400    10500     3880    18800
          13      2070    e2990    e4590    e2270    e2080    e3710    58600    18500    17100    10400     3710    19200
          14      2070    e2860    e4380    e2250    e2080    e3740    57900    21600    17700    10400     3710    19200
          15      2060    e2830    e4310    e2210    e2090    e3740    56200    23800    17900    10600     4340    18700

          16      2090    e2850    e4340    e2130    e2100    e3710    53300    25500    17600    10900     5510    17700
          17      2180    e2800    e4480    e2090    e2110    e3640    51900    26900    17000    10900     6500    16600
          18      2300    e2540    e4590    e2090    e2110    e3570    50500    27900    16100    10900     7200    15400
          19      2610    e2450    e4560    e2090    e2110    e3530    48400    28600    14900    10200     7660    14200
          20      3400    e2420    e4410    e2090    e2120    e3570    45900    29000    13800     9530     8090    13200

          21      4940    e2640    e4100    e2080    e2130    e4200    43400    29000    12900     8970     8370    12200
          22      6640    e2810    e3810    e2070    e2140    e5260    41300    29100    12100     8510     8370    11200
          23      7660    e3010    e3500    e2050    e2150    e7310    39600    29200    11500     8020     8120    10100
          24      7910    e3150    e3210    e2040    e2150    e9610    37800    29000    11100     7590     7700     9110
          25      7660    e3230    e3010    e2030    e2150   e11700    36000    28500    11100     7240     7350     8190

          26      7130    e3390    e2920    e2020    e2140   e13800    34000    27700    11500     6960     7380     7450
          27      6570    e3640    e2860    e2000    e2130   e16800    31700    26600    11900     6780     8020     6920
          28      5970    e3880    e2800    e1990    e2130   e20200    29300    25200    12600     6530     8650     6530
          29      5470    e4170    e2740    e1990      ---   e23600    27100    23600    13200     6250     8690     6290
          30      5090    e4450    e2670    e1980      ---   e27000    24900    21900    13600     6040     8300     6110
          31      4800      ---    e2660    e1990      ---   e30400      ---    20200      ---     5900     7590      ---

         TOTAL  112230   103960   131960    68940    58520   232110  1344400   667100   444500   297720   194030   344510
         MEAN     3620     3465     4257     2224     2090     7487    44810    21520    14820     9604     6259    11480
         MAX      7910     4630     5650     2660     2150    30400    58600    29200    18600    13700     8690    19200
         MIN      1810     2420     2660     1980     2000     2140    24900    10700    11100     5900     3710     4770
         AC-FT  222600   206200   261700   136700   116100   460400  2667000  1323000   881700   590500   384900   683300

         STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1912 - 1999, BY WATER YEAR (WY)

         MEAN     1592     1414     1060      855      824     2505    13830     9501     5274     4356     2161     1761
         MAX      6015     5163     4257     2224     2446    20490    48890    72820    25430    28020    27000    11480
         (WY)     1995     1972     1999     1999     1998     1998     1997     1950     1962     1975     1993     1999
         MIN      28.6     23.8     33.4     7.05     1.21     2.25     1282      663      196      121     46.6     23.8
         (WY)     1937     1937     1937     1937     1937     1937     1938     1934     1934     1936     1934     1934

         SUMMARY STATISTICS           FOR 1998 CALENDAR YEAR        FOR 1999 WATER YEAR           WATER YEARS 1912 - 1999

         ANNUAL TOTAL                     3129700                    3999980
         ANNUAL MEAN                         8575                      10960                       3772
         HIGHEST ANNUAL MEAN                                                                      12830              1997
         LOWEST ANNUAL MEAN                                                                         333              1934
         HIGHEST DAILY MEAN                 27500     Mar 12           58600     Apr 12          133000       Apr 26 1997
         LOWEST DAILY MEAN                   1760     Jan 13            1810     Oct  3                .90    Feb  6 1937
         ANNUAL SEVEN-DAY MINIMUM            1780     Jan 10            1890     Oct  1                .97    Feb  4 1937
         INSTANTANEOUS PEAK FLOW                                       58600     Apr 13          133000       Apr 26 1997
         INSTANTANEOUS PEAK STAGE                                        787.73  Apr 13             792.41    Apr 26 1997
         INSTANTANEOUS LOW FLOW                                                                        .90    Feb  6 1937
         ANNUAL RUNOFF (AC-FT)            6208000                    7934000                    2732000
         10 PERCENT EXCEEDS                 22400                      28100                       8560
         50 PERCENT EXCEEDS                  4630                       5650                       1500
         90 PERCENT EXCEEDS                  1950                       2080                        273

         e  Estimated

                                                     WATER-QUALITY RECORDS

PERIOD OF RECORD.--Water year 1978 to current year.


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

                                 PH       PH       SPE-
                                WATER    WATER    CIFIC    SPE-                       HARD-             MAGNE-   POTAS-
                                WHOLE    WHOLE     CON-    CIFIC                      NESS    CALCIUM    SIUM,    SIUM,
                                FIELD     LAB     DUCT-    CON-    TEMPER-  TEMPER-   TOTAL    DIS-      DIS-     DIS-
                               (STAND-  (STAND-   ANCE     DUCT-    ATURE    ATURE    (MG/L    SOLVED   SOLVED   SOLVED
              DATE      TIME     ARD      ARD      LAB     ANCE      AIR     WATER     AS      (MG/L    (MG/L    (MG/L
                                UNITS)   UNITS)  (US/CM)  (US/CM)  (DEG C)  (DEG C)   CACO3)   AS CA)   AS MG)   AS K)
                               (00400)  (00403)  (90095)  (00095)  (00020)  (00010)  (00900)  (00915)  (00925)  (00935)

          JAN
            07...       1000     8.2      7.9      966      973       --      .0       420      90       48       7.1
          FEB
            04...       1045     7.9      7.8      676      685     -13.0     .0       310      67       33       4.9


                                                   ANC     ALKA-   BICAR-    CAR-
                       SODIUM                    UNFLTRD  LINITY   BONATE   BONATE    CHLO-    FLUO-   SILICA,
                         AD-            SODIUM,  TIT 4.5  WAT DIS   WATER    WATER    RIDE,    RIDE,    DIS-    SULFATE
                       SORP-             DIS-      LAB    TOT IT   DIS IT   DIS IT    DIS-      DIS-    SOLVED   DIS-
                        TION            SOLVED    (MG/L    FIELD    FIELD    FIELD    SOLVED   SOLVED   (MG/L    SOLVED
              DATE     RATIO    SODIUM   (MG/L     AS     MG/L AS  MG/L AS  MG/L AS   (MG/L    (MG/L     AS      (MG/L
                               PERCENT   AS NA)   CACO3)   CACO3    HCO3      CO3     AS CL)   AS F)    SIO2)   AS SO4)
                      (00931)  (00932)  (00930)  (90410)  (39086)  (00453)  (00452)  (00940)  (00950)  (00955)  (00945)

          JAN
            07...       .9       18       42       294      280      341       0       29       .21      18       190
          FEB
            04...       .6       15       26       258      256      312       0       16       .14      18        85


                       NITRO-   NITRO-   NITRO-            NITRO-   NITRO-                     NITRO-            PHOS-
                        GEN,   GEN,AM-  GEN,AM-   NITRO-    GEN,     GEN,    NITRO-             GEN,    PHOS-   PHORUS
                      AMMONIA  MONIA +  MONIA +    GEN    NO2+NO3  ORGANIC    GEN,    NITRO-  NITRITE  PHORUS    ORTHO,
                        DIS-   ORGANIC  ORGANIC   DIS-      DIS-     DIS-   ORGANIC    GEN,     DIS-     DIS-    DIS-
                       SOLVED   DIS.     TOTAL   SOLVED    SOLVED   SOLVED   TOTAL    TOTAL    SOLVED   SOLVED  SOLVED
              DATE     (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L   (MG/L
                       AS N)    AS N)    AS N)    AS N)    AS N)    AS N)    AS N)    AS N)    AS N)    AS P)   AS P)
                      (00608)  (00623)  (00625)  (00602)  (00631)  (00607)  (00605)  (00600)  (00613)  (00666)  (00671)

          JAN
            07...      .120     1.0      1.1       1.7     .657      .93      .94      1.7     <.010    .082     .066
          FEB
            04...      .149      .80      .93      1.4     .634      .65      .79      1.6     <.010    .078     .075


                               SOLIDS,  SOLIDS,                    2,6-DI-                                        BEN-
                               RESIDUE  SUM OF             MANGA-   ETHYL    ACETO-   ALA-              ATRA-    FLUR-
                       PHOS-   AT 180   CONSTI-   IRON,    NESE,   ANILINE   CHLOR,   CHLOR,   ALPHA    ZINE,    ALIN
                      PHORUS    DEG. C  TUENTS,    DIS-     DIS-   WAT FLT   WATER    WATER,    BHC     WATER,  WAT FLD
                       TOTAL     DIS-     DIS-    SOLVED   SOLVED   0.7 U    FLTRD    DISS,     DIS-    DISS,    0.7 U
              DATE     (MG/L    SOLVED   SOLVED   (UG/L    (UG/L   GF, REC    REC     REC,    SOLVED    REC     GF, REC
                       AS P)    (MG/L)   (MG/L)   AS FE)   AS MN)  (UG/L)    (UG/L)  (UG/L)   (UG/L)   (UG/L)   (UG/L)
                      (00665)  (70300)  (70301)  (01046)  (01056)  (82660)  (49260)  (46342)  (34253)  (39632)  (82673)

          JAN
            07...      .107      651      597      <10      11      <.0030   <.0020   <.002    <.0020    .034    <.0020
          FEB
            04...      .094      438      407       16      14        --       --       --       --       --       --


                                 CAR-    CARBO-                             DEETHYL                     DISUL-
                       BUTYL-   BARYL    FURAN             CYANA-   DCPA     ATRA-                      FOTON    EPTC
                       ATE,     WATER    WATER    CHLOR-   ZINE,    WATER    ZINE,     DI-      DI-     WATER    WATER
                       WATER,   FLTRD    FLTRD   PYRIFOS   WATER,   FLTRD    WATER,  AZINON,   ELDRIN   FLTRD    FLTRD
                       DISS,    0.7 U    0.7 U     DIS-    DISS,    0.7 U    DISS,     DIS-     DIS-    0.7 U    0.7 U
              DATE     REC     GF, REC  GF, REC   SOLVED   REC     GF, REC   REC      SOLVED   SOLVED  GF, REC  GF, REC
                      (UG/L)   (UG/L)   (UG/L)    (UG/L)  (UG/L)   (UG/L)   (UG/L)    (UG/L)   (UG/L)  (UG/L)   (UG/L)
                      (04028)  (82680)  (82674)  (38933)  (04041)  (82682)  (04040)  (39572)  (39381)  (82677)  (82668)

          JAN
            07...      <.0020   <.0030   <.0030   <.0040    .0070   <.0020   E.0129   <.002    <.001    <.0170    .0272
          FEB
            04...        --       --       --       --       --       --       --       --       --       --       --

                       ETHAL-   ETHO-                       LIN-            METHYL   METHYL                       MOL-
                       FLUR-    PROP                       URON              AZIN-    PARA-             METRI-   INATE
                       ALIN     WATER   FONOFOS            WATER    MALA-    PHOS     THION    METO-    BUZIN    WATER
                      WAT FLT   FLTRD    WATER   LINDANE   FLTRD    THION,  WAT FLT  WAT FLT  LACHLOR  SENCOR    FLTRD
                       0.7 U    0.7 U    DISS     DIS-     0.7 U     DIS-    0.7 U    0.7 U    WATER    WATER    0.7 U
              DATE    GF, REC  GF, REC    REC    SOLVED   GF, REC   SOLVED  GF, REC  GF, REC  DISSOLV  DISSOLV  GF, REC
                      (UG/L)   (UG/L)   (UG/L)    (UG/L)  (UG/L)    (UG/L)  (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)
                      (82663)  (82672)  (04095)  (39341)  (82666)  (39532)  (82686)  (82667)  (39415)  (82630)  (82671)

          JAN
            07...      <.0040   <.0030   <.0030   <.004    <.0020   <.005    <.0010   <.0060    .006    <.004    <.0040
          FEB
            04...        --       --       --       --       --       --       --       --       --       --       --


                           NAPROP-                      PEB-    PENDI-    PER-                      PRON-
                            AMIDE                      ULATE    METH-   METHRIN  PHORATE   PRO-     AMIDE    PROP-
                            WATER             PARA-    WATER    ALIN      CIS     WATER    METON,   WATER    CHLOR,
                            FLTRD    P,P'     THION,   FILTRD  WAT FLT  WAT FLT   FLTRD    WATER,   FLTRD    WATER,
                            0.7 U     DDE      DIS-    0.7 U    0.7 U    0.7 U    0.7 U    DISS,    0.7 U    DISS,
                   DATE    GF, REC  DISSOLV   SOLVED  GF, REC  GF, REC  GF, REC  GF, REC   REC     GF, REC   REC
                           (UG/L)   (UG/L)    (UG/L)  (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)
                           (82684)  (34653)  (39542)  (82669)  (82683)  (82687)  (82664)  (04037)  (82676)  (04024)

               JAN
                 07...      <.0030   <.0060   <.004    <.0040   <.0040   <.0050   <.0020   <.0180   <.0030   <.0070
               FEB
                 04...        --       --       --       --       --       --       --       --       --       --


                             PRO-     PRO-             TEBU-     TER-     TER-    THIO-    TRIAL-    TRI-
                            PANIL   PARGITE   SI-     THIURON   BACIL    BUFOS   BENCARB   LATE     FLUR-
                            WATER    WATER   MAZINE,   WATER    WATER    WATER    WATER    WATER    ALIN     SEDI-
                            FLTRD    FLTRD    WATER,   FLTRD    FLTRD    FLTRD    FLTRD    FLTRD   WAT FLT   MENT,
                            0.7 U    0.7 U    DISS,    0.7 U    0.7 U    0.7 U    0.7 U    0.7 U    0.7 U    SUS-
                   DATE    GF, REC  GF, REC   REC     GF, REC  GF, REC  GF, REC  GF, REC  GF, REC  GF, REC   PENDED
                           (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)    (MG/L)
                           (82679)  (82685)  (04035)  (82670)  (82665)  (82675)  (82681)  (82678)  (82661)  (80154)

               JAN
                 07...      <.0040   <.0130   <.0050   <.0100   <.0070   <.0130   <.0020   <.0010   E.0016    24
               FEB
                 04...        --       --       --       --       --       --       --       --       --      10

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