RED RIVER OF THE NORTH BASIN

                                            05060100  MAPLE RIVER BELOW MAPLETON, ND

LOCATION.--Lat 4654'19", long 9703'08", in NW1/4NW1/4NW1/4 sec.31, T.140 N., R.50 W., Cass County, Hydrologic Unit 09020204,
   on left bank just downstream from bridge on county highway 1.0 mi north of Mapleton.

DRAINAGE AREA.-- 1,480 mi2, approximately, of which 70 mi2 is probably noncontributing.

                                                    WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--April 1944 to September 1975, March 1995 to current year. April 1944 to September 1958 published as "at
   Mapleton". Record not equivalent at extreme high flows to station 05060000 (site 9 mi upstream), which was operated for water
   years 1959 to 1975.

GAGE.--Water-stage recorder. Datum of gage is 890.00 ft above sea level. Feb. 16, 1944, to Sept. 30, 1958, nonrecording gage at
   site 2 mi upstream at datum 3.33 ft lower.

REMARKS.--Records good except for periods of estimated daily discharge, which are poor.

                          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        62       39       32      e13      e13     e520      273       93       40      556       39       35
          2        59       44       32      e13      e13     e470      246       85       41      490       34       69
          3        54       46       35      e13      e13     e460      228       80       42      426       31      228
          4        50       44       36      e13      e13      430      208       78       43      368       29      489
          5        49       41       29      e13      e13      544      189       71       43      446       26      376

          6        50       42       29      e13      e13      731      175       66       43      777       23      216
          7        48       40       30      e13      e13      693     e168       63       42     1390       23      118
          8        44       39       29      e13      e13      446     e155       65       42     1640       21       88
          9        44       38       29      e13      e13      369     e145       63       37     1250       19       75
         10        45       38       28      e12      e13     e340      134       66       30      793       18       59

         11        46       39       29      e12      e13     e300      124       71       29      553       17       50
         12        44       38       27      e12      e13     e250      122       64       28      446       16       42
         13        41       38       26      e12      e13     e220      117       61       29      358       15       38
         14        42       37      e24      e14      e13     e200      127       62       29      290       16       34
         15        49       38      e23      e15      e13     e170      120       61       34      242       15       30

         16        52       40      e20      e15      e13     e150      123       62       61      204       18       27
         17        54       44      e19      e15      e13      131      110       64      204      174       20       24
         18        58       44      e18      e15      e13      110      108       60      171      152       17       22
         19        62       40      e16      e15      e13      124      123       52      198      130       16       17
         20        61       39      e15      e14      e13      134      120       48     1820      114       15       15

         21        59       38      e15      e14      e14      166      115       46     3190      100       14       16
         22        61       38      e15      e14      e15      230      130       44     4010       92       12       28
         23        61       37      e15      e14      e17      524      127       41     3850       84       13       39
         24        61       35      e15      e13      e18      973      119       39     3140       76       14       43
         25        58       33      e14      e13      e22     1320      111       45     2510       69       15       45

         26        61       30      e14      e13      e50     1180      107       47     2050       66       16       43
         27        64       29      e15      e13     e100      708      106       43     1550       62       16       36
         28        62       34      e15      e13     e350      490      100       39     1110       61       15       32
         29        61       31      e15      e13     e456      414       98       39      893       56       15       29
         30        56       31      e14      e13      ---      360       95       40      700       48       19       25
         31        54      ---      e14      e13      ---      308      ---       42      ---       43       25      ---

        TOTAL    1672     1144      687      414     1302    13465     4223     1800    26009    11556      602     2388
        MEAN     53.9     38.1     22.2     13.4     44.9      434      141     58.1      867      373     19.4     79.6
        MAX        64       46       36       15      456     1320      273       93     4010     1640       39      489
        MIN        41       29       14       12       13      110       95       39       28       43       12       15
        AC-FT    3320     2270     1360      821     2580    26710     8380     3570    51590    22920     1190     4740

        STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1944 - 2000, BY WATER YEAR (WY)

        MEAN     15.1     13.7     11.9     3.45     18.9      237      532      180      135     75.5     14.7     32.9
        MAX      96.5     79.8      125     20.7      288     1376     2956     1035      867      373     51.1      401
        (WY)     1999     1999     1999     1999     1998     1998     1997     1999     2000     2000     1953     1999
        MIN      .000     1.75      .63     .016     .000     .000     21.0     6.30     6.52     2.90     .042     .000
        (WY)     1953     1953     1956     1956     1945     1956     1953     1955     1954     1956     1946     1949

        SUMMARY STATISTICS           FOR 1999 CALENDAR YEAR        FOR 2000 WATER YEAR           WATER YEARS 1944 - 2000

        ANNUAL TOTAL                      119371                      65262
        ANNUAL MEAN                          327                        178                        104
        HIGHEST ANNUAL MEAN                                                                        343              1999
        LOWEST ANNUAL MEAN                                                                          11.1            1954
        HIGHEST DAILY MEAN                  3110     May 12            4010     Jun 22            6620       Apr 16 1997
        LOWEST DAILY MEAN                     14     Feb 18              12     Jan 10                .00    Jan 16 1945
        ANNUAL SEVEN-DAY MINIMUM              14     Feb 17              12     Jan  7                .00    Jan 16 1945
        INSTANTANEOUS PEAK FLOW                                        4110     Jun 22          a 7150       Apr 16 1997
        INSTANTANEOUS PEAK STAGE                                         23.49  Jun 22            b 24.96    Apr  8 1997
        ANNUAL RUNOFF (AC-FT)             236800                     129400                      75460
        10 PERCENT EXCEEDS                  1320                        435                        178
        50 PERCENT EXCEEDS                    48                         43                          8.4
        90 PERCENT EXCEEDS                    18                         13                           .10

        a  Gage height, 23.76 ft
        b  Observed, backwater from ice, may have been higher during period of no gage height record, Apr. 6-9, 1997
        e  Estimated
        
        
                                                     WATER-QUALITY RECORDS

PERIOD OF RECORD.--Water year 1995 to current year.

PERIOD OF DAILY RECORD.--

   WATER TEMPERATURE: April 1997 to current year.

   SPECIFIC CONDUCTANCE: April 1997 to current year.

INSTRUMENTATION.--Water-quality sensors since April 1997.

REMARKS.--Records good. No data from Oct. 1 to Mar. 27, sensor probe removed for winter.

EXTREMES FOR PERIOD OF DAILY RECORD.--

   WATER TEMPERATURE: Maximum recorded, 30.8C, July 14, 1998; minimum recorded, less than 0.0C, April 16, 1997.

   SPECIFIC CONDUCTANCE: Maximum recorded, 2,090 microsiemens, Jan. 15, 1998; minimum recorded, 276 microsiemens, 
     June 20, 2000.


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

                                DIS-     DIS-     PH       PH
                              CHARGE,  CHARGE,   WATER    WATER    SPE-                       HARD-             MAGNE-
                                 IN     INST.    WHOLE    WHOLE    CIFIC                      NESS    CALCIUM    SIUM,
                               CUBIC    CUBIC    FIELD     LAB     CON-    TEMPER-  TEMPER-   TOTAL    DIS-      DIS-
                                FEET     FEET   (STAND-  (STAND-   DUCT-    ATURE    ATURE    (MG/L    SOLVED   SOLVED
             DATE      TIME     PER      PER      ARD      ARD     ANCE      AIR     WATER     AS      (MG/L    (MG/L
                               SECOND   SECOND   UNITS)   UNITS)  (US/CM)  (DEG C)  (DEG C)   CACO3)   AS CA)   AS MG)
                              (00060)  (00061)  (00400)  (00403)  (00095)  (00020)  (00010)  (00900)  (00915)  (00925)

         OCT
           15...       1320      --       49       --       --     1410      12.5    11.0       --       --       --
         DEC
           06...       1705      --       30       --       --     1570       5.0    20.0       --       --       --
         JAN
           19...       1325      --       15       --       --     2190     -17.0      .5       --       --       --
         FEB
           29...       1800      --      456       --       --      955       3.0     1.5       --       --       --
         MAR
           27...       1145     708       --       --       --     1230       --      5.8       --       --       --
           30...       1300      --      362       --      7.7     1740      16.0     7.0      680      140     80.0
         APR
           20...       1145     120       --       --       --     1870       --      6.3       --       --       --
           28...       1035      --       99       --       --       --      11.0    13.0       --       --       --
         MAY
           22...       1025      44       --       --       --     1880       --     17.9       --       --       --
         JUN
           29...       1340     893       --       --       --      869       --     22.0       --       --       --
         JUL
           05...       1730      --      477       --       --     1110       --     25.5       --       --       --
           18...       1320     152       --       --       --     1450       --     22.3       --       --       --
         AUG
           11...       1540      --       17      8.1      8.3     1370      26.0    25.0      600      120     73.0
           22...       1410      12       --       --       --     1390       --     21.8       --       --       --
         SEP
           07...       1600     118       --       --       --      660       --     19.9       --       --       --


                                                                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
                15...        --       --       --       --       --       --       --       --       --       --
              DEC
                06...        --       --       --       --       --       --       --       --       --       --
              JAN
                19...        --       --       --       --       --       --       --       --       --       --
              FEB
                29...        --       --       --       --       --       --       --       --       --       --
              MAR
                27...        --       --       --       --       --       --       --       --       --       --
                30...      15.0       2       110      26       243     64.0       .2      550    1200      1230
              APR
                20...        --       --       --       --       --       --       --       --       --       --
                28...        --       --       --       --       --       --       --       --       --       --
              MAY
                22...        --       --       --       --       --       --       --       --       --       --
              JUN
                29...        --       --       --       --       --       --       --       --       --       --
              JUL
                05...        --       --       --       --       --       --       --       --       --       --
                18...        --       --       --       --       --       --       --       --       --       --
              AUG
                11...      12.0       2       110      28       294     58.0       .3      460      49.4    1090
                22...        --       --       --       --       --       --       --       --       --       --
              SEP
                07...        --       --       --       --       --       --       --       --       --       --


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

                          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
                15...        --       --       --       --       --       --       --       --       --       --
              DEC
                06...        --       --       --       --       --       --       --       --       --       --
              JAN
                19...        --       --       --       --       --       --       --       --       --       --
              FEB
                29...        --       --       --       --       --       --       --       --       --       --
              MAR
                27...        --       --       --       --       --       --       --       --       --       --
                30...      1110      4.0      60        1       90.0     40       <.1       1      <1.0      690
              APR
                20...        --       --       --       --       --       --       --       --       --       --
               28...        --       --       --       --       --       --       --       --       --       --
              MAY
                22...        --       --       --       --       --       --       --       --       --       --
              JUN
                29...        --       --       --       --       --       --       --       --       --       --
              JUL
                05...        --       --       --       --       --       --       --       --       --       --
                18...        --       --       --       --       --       --       --       --       --       --
              AUG
                11...      1010     11.0      80        1      110       50       <.1       7       1.0      630
                22...        --       --       --       --       --       --       --       --       --       --
              SEP
                07...        --       --       --       --       --       --       --       --       --       --

                            TEMPERATURE, WATER (DEG. C), WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000

           DAY      MAX     MIN    MEAN       MAX     MIN    MEAN       MAX     MIN    MEAN       MAX     MIN    MEAN

                          OCTOBER                 NOVEMBER                  DECEMBER                    JANUARY

             1      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
             2      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
             3      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
             4      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
             5      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
           
             6      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
             7      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
             8      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
             9      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            10      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

            11      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            12      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            13      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            14      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            15      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

            16      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            17      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            18      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            19      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            20      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
           
            21      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            22      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            23      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            24      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            25      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

            26      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            27      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            28      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            29      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            30      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            31      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

           MONTH    ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---


                            TEMPERATURE, WATER (DEG. C), WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000

           DAY      MAX     MIN    MEAN       MAX     MIN    MEAN       MAX     MIN    MEAN       MAX     MIN    MEAN

                         FEBRUARY                   MARCH                     APRIL                       MAY

             1      ---     ---     ---       ---     ---     ---       ---     ---     ---      15.3    12.8    14.1
             2      ---     ---     ---       ---     ---     ---       ---     ---     ---      17.1    13.3    15.3
             3      ---     ---     ---       ---     ---     ---       ---     ---     ---      18.3    15.1    16.8
             4      ---     ---     ---       ---     ---     ---       ---     ---     ---      19.4    16.5    18.0
             5      ---     ---     ---       ---     ---     ---       ---     ---     ---      21.7    18.3    20.0

             6      ---     ---     ---       ---     ---     ---       ---     ---     ---      21.7    19.9    20.8
             7      ---     ---     ---       ---     ---     ---       ---     ---     ---      20.8    18.7    19.6
             8      ---     ---     ---       ---     ---     ---       ---     ---     ---      18.7    16.9    17.6
             9      ---     ---     ---       ---     ---     ---       ---     ---     ---      18.1    15.6    16.9
            10      ---     ---     ---       ---     ---     ---       ---     ---     ---      17.4    16.0    16.6

            11      ---     ---     ---       ---     ---     ---       ---     ---     ---      16.3    15.3    15.8
            12      ---     ---     ---       ---     ---     ---       ---     ---     ---      15.3    11.8    13.9
            13      ---     ---     ---       ---     ---     ---       ---     ---     ---      11.8     9.7    10.2
            14      ---     ---     ---       ---     ---     ---       ---     ---     ---      11.8     9.1    10.5
            15      ---     ---     ---       ---     ---     ---       ---     ---     ---      12.3    10.9    11.7

            16      ---     ---     ---       ---     ---     ---       ---     ---     ---      15.3    12.3    13.8
            17      ---     ---     ---       ---     ---     ---       ---     ---     ---      15.3    14.2    14.8
            18      ---     ---     ---       ---     ---     ---       ---     ---     ---      15.5    12.9    14.2
            19      ---     ---     ---       ---     ---     ---       ---     ---     ---      17.0    13.9    15.4
            20      ---     ---     ---       ---     ---     ---       ---     ---     ---      16.9    15.6    16.2

            21      ---     ---     ---       ---     ---     ---      10.8     6.4     8.6      18.2    15.7    17.1
            22      ---     ---     ---       ---     ---     ---      13.0     9.6    11.3      18.6    16.9    17.8
            23      ---     ---     ---       ---     ---     ---      14.4    10.9    12.8      19.3    17.0    18.1
            24      ---     ---     ---       ---     ---     ---      15.3    12.2    13.9      18.0    16.3    17.0
            25      ---     ---     ---       ---     ---     ---      16.0    13.4    14.8      19.1    15.4    17.3
           
            26      ---     ---     ---       ---     ---     ---      15.4    14.4    14.9      19.5    17.2    18.4
            27      ---     ---     ---       ---     ---     ---      14.9    13.4    14.4      18.7    16.7    17.5
            28      ---     ---     ---       5.0     3.4     4.3      14.7    12.0    13.3      18.7    15.9    17.2
            29      ---     ---     ---       7.0     4.6     5.8      14.9    12.2    13.6      17.9    16.8    17.3
            30      ---     ---     ---       9.1     6.3     7.6      14.4    13.2    13.8      19.5    16.3    17.8
            31      ---     ---     ---       ---     ---     ---       ---     ---     ---      18.9    17.2    18.3

           MONTH    ---     ---     ---       ---     ---     ---       ---     ---     ---      21.7     9.1    16.3


           DAY      MAX     MIN    MEAN       MAX     MIN    MEAN       MAX     MIN    MEAN       MAX     MIN    MEAN

                           JUNE                     JULY                     AUGUST                    SEPTEMBER

             1     17.2    16.0    16.7      25.0    22.7    23.8      26.2    24.3    25.3      17.4    16.6    17.0
             2     18.9    15.6    17.1      25.3    24.2    24.7      26.5    23.9    25.2      16.8    16.2    16.5
             3     18.0    15.6    16.6      24.5    23.6    24.0      25.6    24.5    25.1      17.4    16.1    16.8
             4     17.9    14.9    16.3      25.6    23.4    24.4      26.5    23.8    25.0      18.8    17.0    17.9
             5     19.9    16.3    18.2      25.4    23.6    24.5      26.6    24.9    25.6      18.7    17.7    18.3

             6     20.7    17.8    19.3      24.8    24.2    24.5      26.0    24.3    25.1      19.6    17.5    18.5
             7     23.3    19.1    21.2      24.9    23.2    23.8      27.7    23.3    25.1      19.9    18.3    19.1
             8     24.5    22.0    23.1      25.0    23.8    24.4      25.8    24.3    25.0      20.1    17.9    19.1
             9     25.8    22.3    24.2      26.1    24.8    25.5      26.3    23.5    24.9      21.0    18.8    19.7
            10     25.0    23.4    24.3      26.9    25.5    26.2      29.0    23.8    25.7      19.6    18.0    19.0

            11     25.4    22.1    23.6      26.5    24.4    25.6      28.4    24.9    26.4      19.1    17.5    18.5
            12     25.2    22.7    23.8      26.0    23.6    24.8      28.1    26.2    26.9      18.2    16.4    17.4
            13     23.6    22.6    22.9      28.0    25.5    26.7      27.2    24.6    25.9      17.7    16.7    17.1
            14     22.6    19.6    21.1      28.9    26.0    27.4      25.5    23.6    24.4      17.4    15.7    16.5
            15     19.6    18.0    19.0      28.8    26.5    27.6      24.4    22.6    23.4      17.5    15.1    16.3

            16     18.0    16.6    17.1      27.6    25.7    26.5      22.9    19.6    21.1      18.3    15.0    16.4
            17     17.6    15.5    16.5      25.7    23.4    24.3      20.5    18.9    19.5      18.9    16.1    17.4
            18     20.2    16.2    18.2      23.8    21.5    22.3      23.1    18.5    20.3      20.4    17.1    18.5
            19     20.3    19.1    19.7      21.5    20.0    20.6      21.4    19.5    20.4      18.8    16.9    18.2
            20     19.1    17.8    18.4      21.7    19.2    20.4      21.2    20.1    20.4      16.9    14.4    15.6

            21     18.5    17.0    17.5      23.0    19.9    21.5      22.5    19.9    21.1      14.4    13.2    13.8
            22     20.2    16.6    18.3      23.7    21.2    22.5      23.6    20.3    21.6      13.4    10.7    12.2
            23     23.0    19.6    21.2      24.5    22.0    23.4      26.6    20.8    22.7      10.7     9.4    10.1
            24     23.8    21.5    22.6      25.1    22.8    24.1      24.7    21.0    23.0      10.9     8.6     9.8
            25     23.1    21.1    22.0      25.0    24.1    24.5      26.6    23.1    24.4      11.8     9.5    10.7

            26     21.1    19.8    20.4      26.2    23.4    24.8      27.3    23.5    25.0      13.0    10.6    11.8
            27     21.1    19.5    20.3      27.2    24.7    26.0      24.5    22.8    23.6      13.1    11.3    12.3
            28     21.5    20.2    20.8      27.9    25.8    26.9      22.8    21.0    22.2      14.3    11.9    13.1
            29     22.1    20.4    21.2      28.7    26.5    27.5      23.7    19.5    21.2      15.1    13.0    14.1
            30     23.5    21.4    22.5      28.5    26.6    27.6      21.3    19.7    20.5      16.0    13.7    14.8
            31      ---     ---     ---      27.4    25.6    26.5      20.3    17.4    18.5       ---     ---     ---

           MONTH   25.8    14.9    20.1      28.9    19.2    24.8      29.0    17.4    23.4      21.0     8.6    15.9


                SPECIFIC CONDUCTANCE (MICROSIEMENS/CM AT 25 DEG. C), WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000

           DAY      MAX     MIN    MEAN       MAX     MIN    MEAN       MAX     MIN    MEAN       MAX     MIN    MEAN

                          OCTOBER                 NOVEMBER                  DECEMBER                    JANUARY

             1      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
             2      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
             3      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
             4      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
             5      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
           
             6      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
             7      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
             8      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
             9      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            10      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

            11      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            12      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            13      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            14      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            15      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

            16      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            17      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            18      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            19      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            20      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

            21      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            22      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            23      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            24      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            25      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

            26      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            27      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            28      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            29      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            30      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
            31      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

           MONTH    ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---


           DAY      MAX     MIN    MEAN       MAX     MIN    MEAN       MAX     MIN    MEAN       MAX     MIN    MEAN

                         FEBRUARY                   MARCH                     APRIL                       MAY

             1      ---     ---     ---       ---     ---     ---       ---     ---     ---      1930    1880    1910
             2      ---     ---     ---       ---     ---     ---       ---     ---     ---      1940    1880    1910
             3      ---     ---     ---       ---     ---     ---       ---     ---     ---      1940    1850    1900
             4      ---     ---     ---       ---     ---     ---       ---     ---     ---      1920    1870    1890
             5      ---     ---     ---       ---     ---     ---       ---     ---     ---      1910    1870    1880

             6      ---     ---     ---       ---     ---     ---       ---     ---     ---      1940    1880    1900
             7      ---     ---     ---       ---     ---     ---       ---     ---     ---      1950    1890    1910
             8      ---     ---     ---       ---     ---     ---       ---     ---     ---      1950    1910    1930
             9      ---     ---     ---       ---     ---     ---       ---     ---     ---      1920    1900    1910
            10      ---     ---     ---       ---     ---     ---       ---     ---     ---      1920    1890    1900

            11      ---     ---     ---       ---     ---     ---       ---     ---     ---      1900    1880    1890
            12      ---     ---     ---       ---     ---     ---       ---     ---     ---      1890    1830    1860
            13      ---     ---     ---       ---     ---     ---       ---     ---     ---      1870    1840    1850
            14      ---     ---     ---       ---     ---     ---       ---     ---     ---      1880    1840    1860
            15      ---     ---     ---       ---     ---     ---       ---     ---     ---      1840    1810    1830

            16      ---     ---     ---       ---     ---     ---       ---     ---     ---      1820    1790    1800
            17      ---     ---     ---       ---     ---     ---       ---     ---     ---      1840    1810    1830
            18      ---     ---     ---       ---     ---     ---       ---     ---     ---      1870    1840    1860
            19      ---     ---     ---       ---     ---     ---       ---     ---     ---      1890    1860    1880
            20      ---     ---     ---       ---     ---     ---       ---     ---     ---      1900    1880    1890

            21      ---     ---     ---       ---     ---     ---      1890    1760    1820      1920    1860    1880
            22      ---     ---     ---       ---     ---     ---      1830    1730    1790      1950    1850    1880
            23      ---     ---     ---       ---     ---     ---      1840    1800    1830      1920    1880    1890
            24      ---     ---     ---       ---     ---     ---      1870    1820    1850      1890    1870    1880
            25      ---     ---     ---       ---     ---     ---      1860    1840    1850      1870    1850    1860

            26      ---     ---     ---       ---     ---     ---      1850    1830    1840      1930    1860    1910
            27      ---     ---     ---       ---     ---     ---      1890    1840    1870      1910    1850    1870
            28      ---     ---     ---      1540    1360    1440      1920    1880    1900      1870    1820    1840
            29      ---     ---     ---      1640    1540    1590      1920    1830    1880      1860    1790    1820
            30      ---     ---     ---      1730    1640    1680      1900    1860    1890      1800    1720    1750
            31      ---     ---     ---       ---     ---     ---       ---     ---     ---      1760    1720    1750

           MONTH    ---     ---     ---       ---     ---     ---       ---     ---     ---      1950    1720    1870


                SPECIFIC CONDUCTANCE (MICROSIEMENS/CM AT 25 DEG. C), WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000

           DAY      MAX     MIN    MEAN       MAX     MIN    MEAN       MAX     MIN    MEAN       MAX     MIN    MEAN

                           JUNE                     JULY                     AUGUST                    SEPTEMBER

             1     1750    1720    1740      1120    1050    1090      1570    1550    1560      1520    1200    1280
             2     1760    1740    1750      1180    1120    1150      1560    1500    1540      1510    1080    1400
             3     1760    1740    1750      1240    1180    1210      1530    1510    1520      1240     578    1070
             4     1760    1700    1720      1300    1240    1270      1520    1510    1520       863     554     648
             5     1720    1640    1680      1300     985    1220      1520    1500    1510       578     516     560

             6     1710    1670    1680      1030     717     844      1520    1500    1510       679     514     601
             7     1750    1710    1730       776     512     594      1500    1480    1500       685     602     651
             8     1750    1740    1740       700     531     632      1510    1490    1500       744     685     715
             9     1750    1690    1720       733     603     642      1500    1480    1490       861     744     801
            10     1710    1650    1680       905     733     838      1520    1500    1510       948     861     893

            11     1690    1650    1680      1080     905     986      1520    1500    1510      1020     948     994
            12     1700    1670    1690      1250    1080    1170      1530    1500    1520      1070    1020    1040
            13     1690    1670    1680      1370    1250    1320      1500    1460    1480      1090    1060    1080
            14     1670    1590    1630      1420    1360    1400      1470    1450    1460      1140    1090    1120
            15     1680    1540    1590      1410    1340    1370      1460    1440    1450      1140    1140    1140

            16     1570    1510    1540      1360    1320    1340      1440    1380    1420      1190    1140    1160
            17     1530     672    1020      1420    1350    1390      1410    1380    1390      1300    1190    1250
            18      880     665     781      1450    1410    1430      1380    1360    1370      1340    1300    1320
            19      989     619     900      1470    1440    1460      1420    1360    1400      1380    1340    1360
            20      619     276     357      1480    1460    1470      1410    1380    1400      1420    1380    1400

            21      346     298     318      1500    1470    1480      1460    1410    1440      1450    1420    1430
            22      338     301     322      1530    1490    1510      1440    1360    1400      1450    1350    1410
            23      409     332     368      1540    1510    1530      1360    1290    1330      1400    1240    1330
            24      569     409     497      1530    1510    1520      1290    1250    1270      1460    1400    1440
            25      628     564     582      1520    1480    1510      1260    1230    1250      1450    1280    1370

            26      764     628     707      1520    1490    1510      1250    1210    1230      1300    1280    1290
            27      815     764     788      1580    1500    1530      1260    1220    1240      1300    1270    1280
            28      864     815     838      1570    1540    1550      1270    1250    1260      1300    1280    1290
            29      944     864     905      1600    1530    1560      1280    1260    1270      1290    1270    1280
            30     1060     944     999      1590    1580    1590      1260    1230    1260      1340    1280    1310
            31      ---     ---     ---      1580    1560    1570      1240    1200    1230       ---     ---     ---

           MONTH   1760     276    1210      1600     512    1280      1570    1200    1410      1520     514    1130

Return to 2000 Data Report

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