RED RIVER OF THE NORTH BASIN

                                          05056670  WESTERN STUMP LAKE NEAR LAKOTA, ND

LOCATION.--Lat 47o54'48", long 98o23'26", in SE1/4NE1/4NW1/4 sec.7, T.151 N., R.60 W., Nelson County, Hydrologic Unit 09020201,
   at southeast arm of lake.

DRAINAGE AREA.--Not determined.

                                                     WATER-QUALITY RECORDS

PERIOD OF RECORD.--Water years 1958-79, 1993 to current year.

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

                                     DEPTH    DEPTH     PH       SPE-
                                     TO TOP  TO BOT-   WATER    CIFIC    HARD-             MAGNE-   POTAS-   SODIUM
                                       OF    TOM OF    WHOLE     CON-    NESS    CALCIUM    SIUM,    SIUM,     AD-
                                     SAMPLE   SAMPLE    LAB     DUCT-    TOTAL    DIS-      DIS-     DIS-    SORP-
                                     INTER-   INTER-  (STAND-   ANCE     (MG/L    SOLVED   SOLVED   SOLVED    TION
                   DATE      TIME   VAL(IN   VAL(IN     ARD      LAB      AS      (MG/L    (MG/L    (MG/L    RATIO
                                    METERS)  METERS)   UNITS)  (US/CM)   CACO3)   AS CA)   AS MG)   AS K)
                                    (82047)  (82048)  (00403)  (90095)  (00900)  (00915)  (00925)  (00935)  (00931)

               OCT
                 21...       0935     .00      3.7      8.5     12300    2500      140      510      160      22
               FEB
                 25...       1225     .90      3.5       --     13900    2900      150      610      170      23
               MAY
                 11...       1330     .00      4.2      8.7     11400    2300      130      470      150      21
               JUL
                 20...       1155     .00      4.5       --     11300    2300      130      480      140      21


                                               ANC                                NITRO-   NITRO-   NITRO-   NITRO-
                                             UNFLTRD   CHLO-    FLUO-              GEN,   GEN,AM-    GEN,     GEN,
                                    SODIUM,  TIT 4.5   RIDE,    RIDE,   SULFATE  AMMONIA  MONIA +  NITRATE  NO2+NO3
                                     DIS-      LAB     DIS-      DIS-    DIS-      DIS-   ORGANIC    DIS-     DIS-
                                    SOLVED    (MG/L    SOLVED   SOLVED   SOLVED   SOLVED   TOTAL    SOLVED   SOLVED
                   DATE     SODIUM   (MG/L     AS      (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L
                           PERCENT   AS NA)   CACO3)   AS CL)   AS F)   AS SO4)   AS N)    AS N)    AS N)    AS N)
                           (00932)  (00930)  (90410)  (00940)  (00950)  (00945)  (00608)  (00625)  (00618)  (00631)

               OCT
                 21...       67      2500      375     1000      .10     6400      .172    4.2        --     <.050
               FEB
                 25...       67      2900      453     1100      .10     7400     1.17      .93       --     <.050
               MAY
                 11...       67      2300      353      940      .10     5900      .021    3.0        --     <.050
               JUL
                 20...       67      2300      362      870      .10     5700      .140    3.5       .039     .108


                                                  NITRO-   PHOS-            SOLIDS,  SOLIDS,  CHLOR-A  CHLOR-B
                                NITRO-             GEN,   PHORUS            RESIDUE  SUM OF    PHYTO-   PHYTO-
                                 GEN,    NITRO-  NITRITE   ORTHO,   PHOS-   AT 180   CONSTI-   PLANK-   PLANK-
                               ORGANIC    GEN,     DIS-    DIS-    PHORUS    DEG. C  TUENTS,    TON      TON
                                TOTAL    TOTAL    SOLVED  SOLVED    TOTAL     DIS-     DIS-   CHROMO   CHROMO
                       DATE     (MG/L    (MG/L    (MG/L   (MG/L     (MG/L    SOLVED   SOLVED  FLUOROM  FLUOROM
                                AS N)    AS N)    AS N)   AS P)     AS P)    (MG/L)   (MG/L)   (UG/L)   (UG/L)
                               (00605)  (00600)  (00613)  (00671)  (00665)  (70300)  (70301)  (70953)  (70954)

                   OCT
                     21...       4.0       --     <.010    .071     .228     10800    10900   18.0      <.100
                   FEB
                     25...        --       --      .019    .245     .063     12600    12600     .280    <.100
                   MAY
                     11...       3.0       --     <.010    .060     .236     10200    10100   20.5      2.10
                   JUL
                     20...       3.3      3.6      .069    .177     .317     10300     9840    7.80     <.100


                                                                    MANGA-            MOLYB-   SELE-    STRON-
                               ARSENIC   IRON,    LEAD,   LITHIUM   NESE,   MERCURY   DENUM,   NIUM,     TIUM,
                                 DIS-     DIS-     DIS-     DIS-     DIS-     DIS-     DIS-     DIS-     DIS-
                                SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED
                       DATE     (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L
                                AS AS)   AS FE)   AS PB)   AS LI)   AS MN)   AS HG)   AS MO)   AS SE)   AS SR)
                               (01000)  (01046)  (01049)  (01130)  (01056)  (71890)  (01060)  (01145)  (01080)

                   OCT
                     21...        9        60      1.0      770       40      <.1      3.0       8       370
                   FEB
                     25...       10       150     <1.0      850      210      <.1      3.0       1       400
                   MAY
                     11...        8        60     <1.0      670      180      <.1     <1.0      <1       510
                   JUL
                     20...        3        80     <1.0      790      100       .4     <1.0       2       380

                                                                              PH
                                                                    SPE-     WATER
                                                  ELEV-             CIFIC    WHOLE
                                                  ATION     SAM-    CON-     FIELD   TEMPER-  OXYGEN,
                                                  ABOVE    PLING    DUCT-   (STAND-   ATURE     DIS-
                                DATE      TIME     NGVD    DEPTH    ANCE      ARD     WATER    SOLVED
                                                  (FEET)    (M)    (US/CM)   UNITS)  (DEG C)   (MG/L)
                                                 (72020)  (00098)  (00095)  (00400)  (00010)  (00300)

                            OCT
                              21...       0925   1405.60    .00       --      8.6      5.6     11.8
                              21...       0926      --      .50       --      8.6      5.6     11.5
                              21...       0927      --     1.0        --      8.6      5.7     11.4
                              21...       0928      --     1.5        --      8.6      5.8     11.2
                              21...       0929      --     2.0        --      8.6      5.9     11.2
                              21...       0930      --     2.5        --      8.6      5.8     11.1
                              21...       0931      --     3.0        --      8.6      6.0     10.8
                              21...       0932      --     3.5        --      8.5      6.3     10.3
                              21...       0933      --     3.7        --      8.5      6.4     10.1
                            FEB
                              25...       1216   1405.90    .61     14300     8.6      -.6      2.2
                              25...       1217      --     1.1      14300     8.7      -.6      2.1
                              25...       1218      --     1.8      14300     8.7      -.6      2.3
                              25...       1219      --     2.5      14300     8.7      -.6      2.4
                              25...       1220      --     3.2      14300     8.7      -.6      2.5
                              25...       1221      --     3.5      14400     8.7      -.1      2.5
                            MAY
                              11...       1320   1407.80    .00     11400     8.8      8.6     12.3
                              11...       1321      --     1.1      11400     8.8      8.6     12.3
                              11...       1322      --     1.9      11500     8.8      8.5     12.1
                              11...       1323      --     2.7      11600     8.8      8.4     11.9
                              11...       1324      --     3.7      11800     8.8      8.2     11.2
                              11...       1325      --     4.2      11900     8.8      8.0     10.6
                            JUL
                              20...       1145   1408.00    .00     11300     8.5     23.5     13.3
                              20...       1146      --     1.0      11300     8.5     23.5     13.3
                              20...       1147      --     1.9      11400     8.5     23.2     12.9
                              20...       1148      --     3.1      11700     8.3     21.5      7.4
                              20...       1149      --     4.0      12000     8.3     21.5      5.8
                              20...       1150      --     4.5      12100     8.2     21.5      3.7


                                        OXYGEN,   BARO-                               WIND
                                          DIS-    METRIC            TRANS-            DIREC-
                                         SOLVED   PRES-              PAR-              TION    WIND
                                         (PER-     SURE   ICE        ENCY   TEMPER-   (DEG.    SPEED
                                          CENT     (MM    THICK-   (SECCHI   ATURE     FROM    (MILES
                                DATE     SATUR-     OF    NESS      DISK)     AIR      TRUE     PER
                                         ATION)    HG)    (FEET)     (IN)   (DEG C)   NORTH)   HOUR)
                                        (00301)  (00025)  (82130)  (00077)  (00020)  (00036)  (00035)

                            OCT
                              21...        --      734       --     25.0      4.0       --       .0
                              21...        --       --       --       --       --       --       --
                              21...        --       --       --       --       --       --       --
                              21...        --       --       --       --       --       --       --
                              21...        --       --       --       --       --       --       --
                              21...        --       --       --       --       --       --       --
                              21...        --       --       --       --       --       --       --
                              21...        --       --       --       --       --       --       --
                              21...        --       --       --       --       --       --       --
                            FEB
                              25...        17      724      2.80    51.0      1.0      150      9.0
                              25...        --       --       --       --       --       --       --
                              25...        --       --       --       --       --       --       --
                              25...        --       --       --       --       --       --       --
                              25...        --       --       --       --       --       --       --
                              25...        --       --       --       --       --       --       --
                            MAY
                              11...       116      722       --     39.0     12.0      180     10
                              11...        --       --       --       --       --       --       --
                              11...        --       --       --       --       --       --       --
                              11...        --       --       --       --       --       --       --
                              11...        --       --       --       --       --       --       --
                              11...        --       --       --       --       --       --       --
                            JUL
                              20...       172      719       --     28.0     27.0      180      5.0
                              20...        --       --       --       --       --       --       --
                              20...        --       --       --       --       --       --       --
                              20...        --       --       --       --       --       --       --
                              20...        --       --       --       --       --       --       --
                              20...        --       --       --       --       --       --       --

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