RED RIVER OF THE NORTH BASIN

                                        05114000  SOURIS (MOUSE) RIVER NEAR SHERWOOD, ND
                                                 (International gaging station)

LOCATION.--Lat 4859'24", long 10157'28", in NW1/4SE1/4NE1/4 sec.33, T.164 N., R.87 W., Renville County, Hydrologic Unit
   09010001, on right bank 0.8 mi downstream from international boundary, 16 mi northwest of Sherwood, and at mile 511.4.

DRAINAGE AREA.--8,940 mi2, approximately, of which about 5,900 mi2 is probably noncontributing.


                                                    WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--March 1930 to current year. Monthly discharge only for some periods, published in WSP 1308.

REVISED RECORDS.--WSP 1308: 1934, 1945. WSP 2113: Drainage area.

GAGE.--Water-stage recorder and concrete control. Datum of gage is 1,603.73 ft above sea level. Prior to Apr. 8, 1935,
   nonrecording gage at same site and datum.

REMARKS.--Records good except for period of estimated discharge, which are fair. Flow is regulated by reservoirs in Canada
   (Boundary Reservoir, 48,990 acre-ft - 1958; Rafferty Reservoir, 356,400 acre-ft - 1991; and Alameda Reservoir, 85,560 ac-ft -
   1992). Total reservoir capacity is about 490,000 acre-ft. Some diversions for irrigation and municipal supply.

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

EXTREMES OUTSIDE PERIOD OF RECORD.--Flood in 1927 reached a stage of about 22 ft and flood in 1904 reached a stage of about 25.8
   ft from information by local residents.

                          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        39       14     12       e6.0     e4.8      e12       14     10         13      117     35        6.5
          2        33       13     12       e6.0     e5.0      e13       15     11         13      107     34        6.5
          3        30       14     12       e5.6     e4.8      e15       15     10         13      102     33        6.6
          4        28       14    e11       e5.5     e4.6      e17       15      9.9       13      102     32        6.9
          5        26       14    e11       e5.3     e4.5      e21       16     10         13      101     31        6.9

          6        24       14    e11       e5.3     e4.5      e24       15     10         13      100     31        6.6
          7        23       14    e11       e5.4     e4.4       29       14      9.4       13       98     32        5.9
          8        22       14    e11       e5.6     e4.5       29       14      9.1       12       95     33        5.8
          9        20       14    e10       e5.6     e4.5       19       13      8.9       12       79     31        5.6
         10        19       14    e10       e5.6     e4.6       23       13      8.8       12       78     27        5.7

         11        18       14    e10       e5.3     e4.5       20       13      9.1       12       87     23        5.1
         12        17       14    e10       e5.0     e4.4       20       14     10         11       94     20        4.4
         13        17       14     e9.5     e5.0     e4.4       19       13     14         11       98     17        4.1
         14        17       14     e8.0     e5.0     e4.3       18       13     14         10       99     14        4.3
         15        17       14     e7.0     e5.0     e4.3       18       13     15         10      101     12        3.5

         16        17       14     e6.0     e5.0     e4.3       17       13     15         12      104     13        3.5
         17        16       16     e6.0     e5.0     e4.3       16       13     14         13      106     13        3.3
         18        16       17     e6.0     e4.8     e4.3       15       13     13         13      107     13        3.2
         19        16       17     e6.0     e4.5     e4.2       15       13     16         13      106     12        2.9
         20        16       16     e5.4     e4.5     e4.2       15       13     20         13      103     12        3.0

         21        16       15     e4.5     e4.5     e4.4       15       13     21         13       93     11        3.4
         22        15       15     e4.7     e4.5     e4.8       15       13     20         25       81     11        3.7
         23        15       15     e5.0     e4.5     e5.1       15       12     19         35       70     11        3.6
         24        15       14     e5.0     e4.5     e5.3       15       11     19         36       61     12        3.7
         25        15       14     e5.0     e4.3     e5.8       16       11     18         36       54     11        4.0

         26        14       13     e5.0     e4.4     e7.5       15       11     18         35       49     10        6.7
         27        14       13     e5.0     e4.4     e9.0       15       11     18         34       45      9.5      8.7
         28        14       13     e5.0     e4.5    e10         13       11     18         34       42      8.5      8.6
         29        14       12     e5.0     e4.6    e11         12       11     18         82       40      7.8      8.2
         30        14       12     e5.5     e4.6      ---       13       11     16        117       38      7.5      8.1
         31        14      ---     e6.0     e4.6      ---       14      ---     14        ---       36      6.7      ---

        TOTAL     591      425    240.6    154.4    152.3      533      390    436.2      692     2593    574.0    159.0
        MEAN     19.1     14.2     7.76     4.98     5.25     17.2     13.0     14.1     23.1     83.6     18.5     5.30
        MAX        39       17       12      6.0       11       29       16       21      117      117       35      8.7
        MIN        14       12      4.5      4.3      4.2       12       11      8.8       10       36      6.7      2.9
        AC-FT    1170      843      477      306      302     1060      774      865     1370     5140     1140      315

        STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1930 - 2000, BY WATER YEAR (WY)

        MEAN     12.8     9.13     4.72     3.02     5.36      128      689      405      126     84.1     26.3     15.4
        MAX       121     65.4     47.7     44.5      143     1148     6739     3995      954     1050      324      173
        (WY)     1994     1955     1976     1976     1981     1972     1976     1975     1953     1953     1999     1999
        MIN      .000     .000     .000     .000     .000     .000     1.82     2.63      .17     .000     .000     .000
        (WY)     1932     1935     1932     1931     1931     1936     1988     1988     1988     1937     1931     1931

        SUMMARY STATISTICS           FOR 1999 CALENDAR YEAR        FOR 2000 WATER YEAR           WATER YEARS 1930 - 2000

        ANNUAL TOTAL                      136721.0                     6940.5
        ANNUAL MEAN                          375                         19.0                      127
        HIGHEST ANNUAL MEAN                                                                        878              1976
        LOWEST ANNUAL MEAN                                                                            .62           1988
        HIGHEST DAILY MEAN                  2460     Apr  9             117     Jun 30           13700       Apr 10 1976
        LOWEST DAILY MEAN                      2.0   Jan 14               2.9   Sep 19                .00    Sep  4 1930
        ANNUAL SEVEN-DAY MINIMUM               2.1   Jan 13               3.3   Sep 15                .00    Sep  4 1930
        INSTANTANEOUS PEAK FLOW                                         118     Jun 30           14800       Apr 10 1976
        INSTANTANEOUS PEAK STAGE                                          3.20  Jun 30              25.15    Apr 10 1976
        ANNUAL RUNOFF (AC-FT)             271200                      13770                      91750
        10 PERCENT EXCEEDS                  1480                         35                        217
        50 PERCENT EXCEEDS                   166                         13                          6.0
        90 PERCENT EXCEEDS                     3.5                        4.5                         .00

        e  Estimated
        
        
                                                     WATER-QUALITY RECORDS

PERIOD OF RECORD.--Water years 1970, 1972 to current year.

REMARKS.-- Quality assurance samples also collected at this location.

PERIOD OF DAILY RECORD.--

   WATER TEMPERATURE: August 1983 to current year.

   SPECIFIC CONDUCTANCE: August 1983 to current year.

   PH: August 1992 to current year.

   DISSOLVED OXYGEN: May 1993 to current year.

INSTRUMENTATION.--Water-quality monitor since August 1983.

REMARKS.--Records fair.

EXTREMES FOR PERIOD OF DAILY RECORD.--

   WATER TEMPERATURE: Maximum, 29.5C, July 10, 1998; minimum, 0.0C, several days during winter months each year.

   SPECIFIC CONDUCTANCE: Maximum, 3,490 microsiemens, Apr. 28, 1991; minimum, 94 microsiemens, Apr. 5, 1990.

   PH: Maximum, 10.4 units, Oct. 19, 1995; minimum, 7.3 units, Jan. 16-23, 2000.

   DISSOLVED OXYGEN: Maximum, 19.6 mg/L, Mar. 16-21, 2000; minimum, 1.3 mg/L, Jan. 27, 2000.

EXTREMES FOR CURRENT YEAR.--

   WATER TEMPERATURE: Maximum, 28.8C, July 30; minimum, 0.2C, several days during the winter.

   SPECIFIC CONDUCTANCE: Maximum, 2,130 microsiemens, Aug. 12 and 13; minimum, 1,070 microsiemens, July 7.

   PH: Maximum, 8.6 units, May 12-14 and July 1 and 2; minimum, 7.3 units, Jan. 16-23.

   DISSOLVED OXYGEN: Maximum, 19.6 mg/L, Mar. 16-21; minimum, 1.3 mg/L, Jan. 27.


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

                          DIS-     DIS-    BARO-   OXYGEN,             PH       PH       SPE-
                        CHARGE,  CHARGE,   METRIC    DIS-             WATER    WATER    CIFIC    SPE-
                           IN     INST.    PRES-    SOLVED            WHOLE    WHOLE     CON-    CIFIC
                         CUBIC    CUBIC     SURE    (PER-   OXYGEN,   FIELD     LAB     DUCT-    CON-    TEMPER-  TEMPER-
                          FEET     FEET     (MM      CENT     DIS-   (STAND-  (STAND-   ANCE     DUCT-    ATURE    ATURE
       DATE      TIME     PER      PER       OF     SATUR-   SOLVED    ARD      ARD      LAB     ANCE      AIR     WATER
                         SECOND   SECOND    HG)     ATION)   (MG/L)   UNITS)   UNITS)  (US/CM)  (US/CM)  (DEG C)  (DEG C)
                        (00060)  (00061)  (00025)  (00301)  (00300)  (00400)  (00403)  (90095)  (00095)  (00020)  (00010)

      OCT
       27...     1445      --     14        722      106     12.7      8.1      8.2     1230     1260       8.0     5.2
      NOV
       16...     1555      --     14         --       --     12.5      8.2      8.1     1230     1260       --      2.9
      JAN
       06...     1700      --      5.3       --       --      4.5      7.4       --       --     1610     -16.0      .1
       12...     1245     5.0       --       --       --      2.6      7.4       --       --     1570       --       .0
      FEB
       23...     1445      --      5.1       --       --      3.7      7.5      7.7     1540     1550       9.0      .1
      MAR
       01...     1705    12         --       --       --     10.9      7.7       --       --     1300       --       .1
       28...     1610      --     13         --       --     13.8      8.3      8.3     1500     1500       --      5.3
      APR
       19...     1505      --     13         --       --     12.2      8.4      8.1     1490     1460      13.0    10.1
      MAY
       17...     1545      --     15         --       --     10.7      8.4      8.2     1460     1450      13.0    16.0
      JUN
       26...     1530      --     35         --       --      9.9      8.3       --       --     1530       --     19.1
      JUL
       07...     1230      --     93        712       72      5.7      8.2      8.2      970      992      25.5    23.5
       25...     1635      --     54         --       --      7.2      8.3       --       --     1480       --     24.6
      AUG
       08...     1430      --     34         --       --      7.3      8.4       --       --     1810      23.5    22.8
       15...     1515      --     12         --       --       --       --       --       --     2060      24.5    21.5
       22...     1715      --      9.9       --       --      6.9      8.3       --       --     1960      25.7    19.7
      SEP
       06...     1210      --      6.6       --       --       --      8.3      8.3     1930     1960       --       --


                                                             ANC                                NITRO-   NITRO-   NITRO-
                HARD-             MAGNE-   SODIUM           UNFLTRD   CHLO-    FLUO-            GEN,AM-    GEN,     GEN,
                NESS    CALCIUM    SIUM,     AD-   SODIUM,  TIT 4.5   RIDE,    RIDE,   SULFATE  MONIA +  AMMONIA  NO2+NO3
                TOTAL    DIS-      DIS-    SORP-    DIS-      LAB     DIS-      DIS-    DIS-    ORGANIC    DIS-     DIS-
                (MG/L    SOLVED   SOLVED    TION   SOLVED    (MG/L    SOLVED   SOLVED   SOLVED   TOTAL    SOLVED   SOLVED
       DATE      AS      (MG/L    (MG/L    RATIO    (MG/L     AS      (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L
                CACO3)   AS CA)   AS MG)            AS NA)   CACO3)   AS CL)   AS F)   AS SO4)   AS N)    AS N)    AS N)
               (00900)  (00915)  (00925)  (00931)  (00930)  (90410)  (00940)  (00950)  (00945)  (00625)  (00608)  (00631)

      OCT
       27...     400      83.9    45.2       3       115      355     82.0       .1      207       .83    <.020    <.050
      NOV
       16...     410      92.7    43.9       2       113      346     84.2       .2      198      1.3     <.020    <.050
      JAN
       06...      --       --       --       --       --       --       --       --       --       --       --       --
       12...      --       --       --       --       --       --       --       --       --       --       --       --
      FEB
       23...     460     105      47.5       3       148      470     89.0       .2      240      1.8      .951     .414
      MAR
       01...      --       --       --       --       --       --       --       --       --       --       --       --
       28...     320      64.7    38.0       5       196      406     59.8       .2      314       .83    <.020    <.050
      APR
       19...     320      60.5    40.3       5       196      376     71.8       .2      300       --       --       --
      MAY
       17...     370      73.4    46.4       4       186      393     69.2       .2      304      1.2     <.020    <.050
      JUN
       26...      --       --       --       --       --       --       --       --       --       --       --       --
      JUL
       07...     290      51.2    39.8       3       103      274     19.9       .1      221      1.4      .167     .085
       25...      --       --       --       --       --       --       --       --       --       --       --       --
      AUG
       08...      --       --       --       --       --       --       --       --       --      1.3     <.020    <.050
       15...      --       --       --       --       --       --       --       --       --       --       --       --
       22...      --       --       --       --       --       --       --       --       --       --       --       --
      SEP
       06...     370      71.4    46.2       7       319      456     59.5       .2      508      1.5      .118     .096


                                                   SOLIDS,   COLI-   CHLOR-A  CHLOR-B   ALUM-                      BERYL-
                NITRO-                             RESIDUE   FORM,    PHYTO-   PHYTO-   INUM,            BARIUM,   LIUM,
                 GEN,    NITRO-   PHOS-   CARBON,  AT 180    FECAL,   PLANK-   PLANK-   TOTAL             TOTAL    TOTAL
               ORGANIC    GEN,   PHORUS   ORGANIC   DEG. C   0.7       TON      TON     RECOV-  ARSENIC   RECOV-   RECOV-
                TOTAL    TOTAL    TOTAL    TOTAL     DIS-    UM-MF   CHROMO   CHROMO    ERABLE   TOTAL    ERABLE   ERABLE
       DATE     (MG/L    (MG/L    (MG/L    (MG/L    SOLVED  (COLS./  FLUOROM  FLUOROM   (UG/L    (UG/L    (UG/L    (UG/L
                AS N)    AS N)    AS P)    AS C)    (MG/L)  100 ML)   (UG/L)   (UG/L)   AS AL)   AS AS)   AS BA)   AS BE)
               (00605)  (00600)  (00665)  (00680)  (70300)  (31625)  (70953)  (70954)  (01105)  (01002)  (01007)  (01012)

      OCT
       27...      --       --      .088     14       752      100       --       --       64      <3       88.8     <5
      NOV
       16...      --       --      .085     19       748       K8       --       --       49      E2       88.8     <5
      JAN
       06...      --       --       --       --       --       --       --       --       --       --       --       --
       12...      --       --       --       --       --       --       --       --       --       --       --       --
      FEB
       23...      .87     2.2      .082     11       984       42       --       --       37      <3      108       <5
      MAR
       01...      --       --       --       --       --       --       --       --       --       --       --       --
       28...      --       --      .064     13       978       <2      1.1       .3       66      E2       68.0     <5
      APR
       19...      --       --       --       --      940       K9     20.7       .8       87      E2       66.2     <5
      MAY
       17...      --       --      .206     14       940       64      8.3       .7      148       4       79.8     <5
      JUN
       26...      --       --       --       --       --       --       --       --       --       --       --       --
      JUL
       07...     1.3      1.5      .263     19       658      420     10.6       .6      645       6       83.5     <5
       25...      --       --       --       --       --       --       --       --       --       --       --       --
      AUG
       08...      --       --      .377     20        --     K380      9.7       .3       --       --       --       --
       15...      --       --       --       --       --       --       --       --       --       --       --       --
       22...      --       --       --       --       --       --       --       --       --       --       --       --
      SEP
       06...     1.4      1.6      .385     19      1350      680      1.8      <.1      158      10       81.5     <5


                                        CHRO-                                        MOLYB-
                      BORON,  CADMIUM   MIUM,   COBALT,  COPPER,   IRON,    LEAD,    DENUM,  NICKEL,            ZINC,
                      TOTAL    WATER    TOTAL    TOTAL    TOTAL    TOTAL    TOTAL    TOTAL    TOTAL    SELE-    TOTAL
                      RECOV-  UNFLTRD   RECOV-   RECOV-   RECOV-   RECOV-   RECOV-   RECOV-   RECOV-   NIUM,    RECOV-
                      ERABLE   TOTAL    ERABLE   ERABLE   ERABLE   ERABLE   ERABLE   ERABLE   ERABLE   TOTAL    ERABLE
             DATE     (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L
                      AS B)    AS CD)   AS CR)   AS CO)   AS CU)   AS FE)   AS PB)   AS MO)   AS NI)   AS SE)   AS ZN)
                     (01022)  (01027)  (01034)  (01037)  (01042)  (01045)  (01051)  (01062)  (01067)  (01147)  (01092)

         OCT
           27...       187      <.1      <1       <2        2       440      <1        2        2       <3       <31
         NOV
           16...       177      E.1      <1       <2        1       570      <1        3        2       <3       <31
         JAN
           06...        --       --       --       --       --       --       --       --       --       --       --
           12...        --       --       --       --       --       --       --       --       --       --       --
         FEB
           23...       252      <.1      <1       <2        1       310      <1        3        4       <3       <31
         MAR
           01...        --       --       --       --       --       --       --       --       --       --       --
           28...       241      <.1      <1       <2        1       490      <1        2        2       <3       <31
         APR
           19...       234      <.1      <1       <2        2       620      <1        2        3       <3       <31
         MAY
           17...       246      <.1      <1       <2        2       520      <1        2        3       <3       <31
         JUN
           26...        --       --       --       --       --       --       --       --       --       --       --
         JUL
           07...       119      <.1      E1       <2        3      1610       1        2        4       <3       <31
           25...        --       --       --       --       --       --       --       --       --       --       --
         AUG
           08...        --       --       --       --       --       --       --       --       --       --       --
           15...        --       --       --       --       --       --       --       --       --       --       --
           22...        --       --       --       --       --       --       --       --       --       --       --
         SEP
           06...       270      E.1      <1       <2        4       430      E1        3        3       <3       <31

 
                           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      ---     ---     ---       6.6     3.7     5.0        .5      .2      .3        .2      .2      .2
             2      ---     ---     ---       3.7     2.0     2.7        .6      .3      .4        .2      .2      .2
             3      ---     ---     ---       2.9     1.6     2.3        .6      .2      .4        .2      .2      .2
             4      ---     ---     ---       4.0     2.0     2.8        .5      .2      .3        .2      .2      .2
             5      ---     ---     ---       3.7     1.7     2.4        .5      .2      .3        .2      .2      .2
           
             6      ---     ---     ---       3.0     1.5     2.2        .5      .2      .3        .2      .2      .2
             7      ---     ---     ---       3.8     2.1     2.9        .5      .2      .3        .2      .2      .2
             8      ---     ---     ---       3.8     2.5     3.1        .4      .2      .3        .2      .2      .2
             9      ---     ---     ---       3.4     3.0     3.2        .4      .2      .3        .2      .2      .2
            10      ---     ---     ---       3.8     2.7     3.2        .4      .2      .3        .2      .2      .2

            11      ---     ---     ---       4.3     3.1     3.6        .4      .2      .3        .2      .2      .2
            12      ---     ---     ---       4.6     2.9     3.7        .3      .2      .2        .2      .2      .2
            13      ---     ---     ---       5.3     4.6     5.0       ---     ---     ---        .2      .2      .2
            14      ---     ---     ---       4.7     3.4     4.0        .4      .2      .3        .2      .2      .2
            15      ---     ---     ---       4.1     3.0     3.6        .4      .2      .2        .2      .2      .2

            16      ---     ---     ---       3.5     2.5     2.9        .2      .2      .2        .2      .2      .2
            17      ---     ---     ---       2.6     1.6     2.2        .2      .2      .2        .2      .2      .2
            18      ---     ---     ---       2.5     1.0     1.7        .2      .2      .2        .2      .2      .2
            19      ---     ---     ---       1.6      .8     1.1        .2      .2      .2        .2      .2      .2
            20      ---     ---     ---       1.5      .6     1.0        .2      .2      .2        .2      .2      .2

            21      ---     ---     ---       1.3      .5      .9        .2      .2      .2        .2      .2      .2
            22      ---     ---     ---        .9      .2      .5        .2      .2      .2        .2      .2      .2
            23      ---     ---     ---        .6      .2      .3        .2      .2      .2        .2      .2      .2
            24      ---     ---     ---        .6      .2      .4        .2      .2      .2        .2      .2      .2
            25      ---     ---     ---        .5      .2      .3        .2      .2      .2        .2      .2      .2

            26      ---     ---     ---        .5      .2      .3        .3      .2      .2        .2      .2      .2
            27      ---     ---     ---        .4      .2      .3        .3      .2      .2        .2      .2      .2
            28      5.2     3.3     4.0        .5      .2      .3        .4      .2      .2        .2      .2      .2
            29      5.9     4.0     4.8        .5      .2      .3        .3      .2      .2        .2      .2      .2
            30      5.7     4.2     5.0        .5      .2      .3        .3      .2      .2        .2      .2      .2
            31      6.9     4.6     5.6       ---     ---     ---        .3      .2      .2        .2      .2      .2

           MONTH    ---     ---     ---       6.6      .2     2.1       ---     ---     ---        .2      .2      .2


                            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       .2      .2      .2       ---     ---     ---       7.8     5.1     6.5      17.5    12.7    14.9
             2       .2      .2      .2        .4      .2      .2       7.3     5.9     6.6      19.7    14.1    16.7
             3       .2      .2      .2        .5      .2      .2       6.7     4.2     5.5      20.0    16.0    18.0
             4       .2      .2      .2        .5      .2      .2       8.9     4.3     6.3      19.0    15.9    17.6
             5       .2      .2      .2        .6      .2      .3       8.8     5.2     7.3      18.4    16.0    16.9

             6       .2      .2      .2        .6      .2      .3       5.3     3.1     4.3      19.7    15.4    17.3
             7       .2      .2      .2        .8      .2      .4       5.9     4.7     5.2      18.9    16.8    17.8
             8       .2      .2      .2        .6      .1      .3       7.9     3.8     5.7      17.7    14.4    16.2
             9       .2      .2      .2        .5      .1      .2       7.2     4.9     6.0      16.8    13.7    14.5
            10       .2      .2      .2        .7      .2      .3       5.8     2.8     4.1      17.1    12.6    14.6

            11       .2      .2      .2        .7      .2      .3       7.0     2.1     4.2      16.7    11.6    13.7
            12       .2      .2      .2        .5      .2      .3       7.0     4.5     5.7      11.6     7.8     9.1
            13       .2      .2      .2        .3      .2      .2       6.7     5.3     6.1      12.5     7.5     9.7
            14       .2      .2      .2        .3      .2      .2       6.5     3.4     4.8      14.7     9.7    12.0
            15       .2      .2      .2        .5      .2      .2       8.2     4.7     6.2      13.9    11.7    12.3

            16       .2      .2      .2        .6      .2      .3       8.5     4.7     6.5      15.6    10.4    12.5
            17       .2      .2      .2        .4      .2      .2      10.7     6.1     8.0      17.4    13.6    15.3
            18       .2      .2      .2       1.0      .2      .4      12.5     8.4    10.3      17.0    12.6    14.8
            19       .2      .2      .2        .7      .2      .4      12.2     8.2    10.2      18.1    14.2    16.0
            20       .2      .2      .2       1.7      .3      .8      13.4     8.6    10.8      19.1    15.4    17.2

            21       .2      .2      .2       3.2      .6     1.8      16.0    11.0    13.1      19.8    16.9    18.2
            22       .2      .2      .2       4.4     1.4     2.8      16.8    12.6    14.5      19.3    17.0    18.2
            23       .3      .2      .2       5.0     2.3     3.6      16.4    12.8    14.6      18.5    16.1    17.4
            24       .2      .2      .2       5.0     3.5     4.3      16.8    13.8    15.1      18.3    14.1    16.3
            25       .2      .2      .2       5.5     1.8     3.6      18.0    14.3    16.0      19.6    14.7    17.0

            26       .4      .2      .2       6.1     4.1     5.1      16.7    14.1    14.8      19.0    16.5    17.8
            27       .4      .2      .2       6.1     3.3     4.8      16.6    12.7    14.4      21.3    16.0    18.2
            28       .4      .2      .2       6.2     3.4     4.8      16.8    13.2    14.9      21.8    18.5    20.2
            29      ---     ---     ---       6.3     4.4     5.3      15.4    12.8    13.4      20.9    17.4    19.0
            30      ---     ---     ---       6.7     4.8     5.7      16.3    11.2    13.5      21.1    16.8    18.9
            31      ---     ---     ---       7.7     5.3     6.4       ---     ---     ---      20.0    16.1    18.0

           MONTH    ---     ---     ---       ---     ---     ---      18.0     2.1     9.2      21.8     7.5    16.0

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

                           JUNE                     JULY                     AUGUST                    SEPTEMBER

             1     18.5    15.2    16.4      26.4    22.1    24.0      27.7    23.9    26.0      17.1    14.5    15.3
             2     18.6    13.0    15.4      25.0    21.6    22.8      26.9    21.3    22.5      14.5    13.8    14.1
             3     18.1    15.7    16.8      22.5    20.6    21.6      24.5    21.6    22.8      15.7    14.0    14.6
             4     19.5    13.8    16.1      21.9    20.6    21.1       ---     ---     ---      15.6    14.8    15.1
             5     22.0    16.8    19.1      23.8    19.5    21.3      24.9    22.7    23.5      17.2    15.1    15.6

             6     21.1    18.1    19.6      24.6    22.0    23.1      24.5    20.7    22.5      17.2    16.6    16.9
             7     24.3    18.8    21.1      26.7    22.6    24.3      24.3    21.3    22.8      17.5    14.6    16.1
             8     23.6    20.5    21.7      27.8    23.7    25.4      24.6    20.8    22.7      18.6    14.9    16.6
             9     21.7    17.6    19.0      26.8    23.7    24.5      25.4    20.4    22.9      18.2    16.2    17.0
            10     18.1    15.8    16.8      26.1    22.7    24.1      25.9    22.3    24.1      16.3    13.9    15.3

            11     20.6    16.0    17.8       ---     ---     ---      28.2    24.1    25.8      16.3    14.3    15.3
            12     20.2    17.7    18.5       ---     ---     ---      27.5    23.9    25.6      16.3    13.8    14.9
            13     18.4    16.7    17.2       ---     ---     ---      25.4    21.4    22.9      16.9    15.3    15.9
            14     20.4    15.6    17.7       ---     ---     ---      23.8    21.4    22.5      16.8    13.8    15.3
            15     19.9    17.5    18.2       ---     ---     ---      22.9    19.4    21.2      16.4    13.6    15.0

            16     17.5    15.2    16.3       ---     ---     ---      22.2    19.5    20.8      18.4    14.5    16.0
            17     18.2    15.3    16.6       ---     ---     ---      21.8    18.7    20.4      18.4    15.1    16.6
            18     20.4    15.3    17.5       ---     ---     ---      21.3    18.5    19.7      18.1    16.2    16.8
            19     19.9    17.7    18.6       ---     ---     ---      19.8    17.7    18.3      16.2    13.7    14.6
            20     18.8    17.2    18.0       ---     ---     ---       ---     ---     ---      13.7    11.9    12.5

            21     19.5    16.3    17.7       ---     ---     ---       ---     ---     ---      11.9    10.6    11.0
            22     21.1    16.8    18.7       ---     ---     ---       ---     ---     ---      11.1     9.8    10.3
            23     22.7    17.2    19.8       ---     ---     ---      22.1    17.9    19.9       9.9     7.8     8.8
            24     21.8    17.5    19.8       ---     ---     ---      22.3    19.0    20.7      10.1     7.2     8.4
            25     22.2    18.0    20.1       ---     ---     ---      22.6    20.1    21.3      11.8     8.7     9.9

            26     24.7    17.4    19.5      26.9    22.7    24.9      23.8    20.4    21.9      11.5     9.6    10.5
            27     20.9    16.6    18.8      26.6    23.5    24.8       ---     ---     ---      12.6     9.1    10.5
            28     22.4    17.0    19.6      27.8    22.6    24.9      22.3    19.2    20.3      13.6     9.6    11.6
            29     23.2    19.0    20.8      28.4    24.2    26.3      19.9    16.7    18.5      14.2    10.8    12.5
            30     25.0    20.6    22.6      28.8    25.1    27.0      19.6    17.1    17.9      14.8    11.7    13.3
            31      ---     ---     ---      28.1    22.1    24.0      17.5    14.9    16.4       ---     ---     ---

           MONTH   25.0    13.0    18.5       ---     ---     ---       ---     ---     ---      18.6     7.2    13.9


                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      ---     ---     ---      1290    1280    1290      1330    1320    1330      1600    1540    1580
             2      ---     ---     ---      1290    1280    1280      1340    1320    1330      1620    1580    1600
             3      ---     ---     ---      1280    1280    1280      1350    1320    1340      1620    1600    1610
             4      ---     ---     ---      1290    1270    1280      1370    1340    1350      1620    1590    1600
             5      ---     ---     ---      1300    1270    1280      1390    1370    1380      1620    1610    1620

             6      ---     ---     ---      1280    1270    1280      1370    1350    1360      1630    1600    1610
             7      ---     ---     ---      1280    1260    1270      1380    1360    1370      1620    1600    1610
             8      ---     ---     ---      1270    1260    1260      1370    1360    1370      1600    1590    1600
             9      ---     ---     ---      1280    1270    1270      1400    1370    1390      1600    1580    1590
            10      ---     ---     ---      1270    1270    1270      1420    1380    1410      1580    1560    1570

            11      ---     ---     ---      1270    1260    1260      1450    1420    1440      1570    1560    1560
            12      ---     ---     ---      1270    1260    1260      1440    1430    1440      1570    1560    1570
            13      ---     ---     ---      1270    1270    1270       ---     ---     ---      1570    1530    1550
            14      ---     ---     ---      1270    1260    1270      1460    1420    1440      1530    1510    1520
            15      ---     ---     ---      1260    1260    1260      1530    1450    1500      1510    1500    1500

            16      ---     ---     ---      1260    1260    1260      1560    1510    1540      1500    1500    1500
            17      ---     ---     ---      1260    1260    1260      1560    1520    1550      1500    1500    1500
            18      ---     ---     ---      1280    1260    1270      1560    1540    1550      1500    1490    1490
            19      ---     ---     ---      1290    1280    1280      1560    1530    1550      1490    1480    1490
            20      ---     ---     ---      1280    1280    1280      1630    1560    1600      1490    1480    1490

            21      ---     ---     ---      1290    1280    1280      1650    1610    1640      1490    1480    1490
            22      ---     ---     ---      1300    1280    1290      1650    1630    1650      1480    1480    1480
            23      ---     ---     ---      1310    1300    1300      1640    1610    1620      1500    1480    1490
            24      ---     ---     ---      1320    1310    1320      1630    1570    1610      1500    1500    1500
            25      ---     ---     ---      1320    1310    1320      1640    1580    1630      1510    1500    1500

            26      ---     ---     ---      1340    1310    1330      1650    1630    1640      1510    1510    1510
            27      ---     ---     ---      1360    1340    1350      1640    1590    1620      1520    1510    1510
            28     1270    1270    1270      1360    1350    1350      1610    1570    1590      1520    1510    1510
            29     1280    1270    1280      1380    1360    1360      1580    1540    1560      1520    1520    1520
            30     1280    1270    1280      1360    1330    1340      1550    1530    1540      1520    1510    1510
            31     1290    1280    1290       ---     ---     ---      1560    1540    1550      1510    1500    1500

           MONTH    ---     ---     ---      1380    1260    1290       ---     ---     ---      1630    1480    1540

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

                         FEBRUARY                   MARCH                     APRIL                       MAY

             1     1510    1500    1500       ---     ---     ---      1410    1380    1400      1480    1450    1470
             2     1500    1500    1500      1330    1210    1270      1380    1310    1350      1500    1480    1490
             3     1500    1500    1500      1260    1220    1250      1310    1290    1300      1530    1490    1510
             4     1510    1500    1510      1280    1180    1240      1300    1280    1290      1550    1510    1530
             5     1520    1510    1520      1210    1130    1180      1320    1300    1310      1570    1540    1550

             6     1540    1520    1530      1190    1130    1170      1330    1310    1320      1570    1560    1560
             7     1550    1540    1540      1200    1160    1180      1340    1330    1340      1590    1560    1580
             8     1560    1550    1550      1230    1180    1220      1360    1340    1350      1590    1570    1580
             9     1550    1550    1550      1270    1230    1260      1380    1360    1370      1600    1560    1580
            10     1550    1550    1550      1310    1270    1290      1370    1330    1350      1580    1540    1570

            11     1560    1550    1560      1390    1280    1350      1420    1350    1390      1540    1360    1450
            12     1560    1550    1560      1430    1340    1390      1430    1420    1430      1420    1350    1370
            13     1550    1550    1550      1420    1370    1400      1470    1430    1440      1490    1420    1460
            14     1550    1540    1540      1420    1370    1400      1610    1470    1530      1500    1470    1480
            15     1550    1540    1550      1410    1400    1410      1630    1600    1620      1500    1460    1480

            16     1560    1550    1550      1460    1400    1440      1600    1590    1600      1470    1440    1450
            17     1570    1560    1560      1510    1430    1470      1600    1540    1580      1460    1420    1440
            18     1580    1570    1570      1530    1470    1500      1540    1460    1500      1470    1440    1450
            19     1590    1580    1590      1530    1480    1510      1480    1460    1470      1490    1470    1480
            20     1590    1590    1590      1520    1460    1500      1500    1460    1480      1500    1490    1490

            21     1590    1580    1590      1520    1460    1500      1570    1500    1540      1520    1500    1510
            22     1580    1570    1580      1530    1490    1510      1580    1570    1580      1560    1520    1540
            23     1610    1540    1570      1520    1500    1510      1570    1530    1550      1560    1560    1560
            24     1560    1510    1530      1540    1500    1520      1530    1500    1520      1560    1550    1550
            25     1520    1430    1470      1540    1520    1530      1510    1490    1490      1560    1530    1550

            26     1430    1360    1400      1560    1530    1540      1490    1460    1470      1570    1540    1560
            27     1410    1370    1390      1560    1500    1530      1470    1450    1460      1560    1510    1530
            28     1400    1320    1370      1510    1500    1510      1470    1450    1460      1560    1550    1560
            29      ---     ---     ---      1500    1470    1490      1470    1440    1460      1570    1540    1560
            30      ---     ---     ---      1480    1460    1470      1470    1450    1460      1580    1570    1570
            31      ---     ---     ---      1460    1400    1430       ---     ---     ---      1570    1550    1560

           MONTH    ---     ---     ---       ---     ---     ---      1630    1280    1450      1600    1350    1520

                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     1560    1510    1520      1960    1680    1870      1510    1430    1500      2070    2050    2060
             2     1530    1510    1520      1680    1200    1370       ---     ---     ---      2050    1990    2010
             3     1530    1510    1520      1200    1170    1190      1440    1380    1430      1990    1960    1980
             4     1540    1520    1520      1170    1110    1130       ---     ---     ---      1970    1950    1960
             5     1540    1520    1530      1160    1120    1150      1470    1410    1440      1960    1930    1940

             6     1530    1510    1520      1140    1100    1110      1590    1470    1510      1950    1930    1930
             7     1520    1510    1510      1130    1070    1090      1720    1590    1670      1940    1930    1930
             8     1520    1480    1500      1150    1130    1150      1880    1670    1780      1950    1940    1940
             9     1520    1490    1510      1150    1120    1140      1970    1880    1920      1950    1930    1940
            10     1510    1490    1500      1210    1120    1160      2070    1970    2030      1940    1930    1940

            11     1510    1490    1490       ---     ---     ---      2080    2020    2070      1940    1930    1940
            12     1510    1490    1500       ---     ---     ---      2130    2080    2100      1940    1920    1930
            13     1500    1460    1480       ---     ---     ---      2130    2080    2120      1920    1900    1910
            14     1460    1450    1450       ---     ---     ---      2120    2060    2110      1920    1900    1910
            15     1460    1430    1440       ---     ---     ---      2110    2070    2080      1910    1900    1900

            16     1480    1440    1450       ---     ---     ---      2100    2040    2060      1910    1890    1900
            17     1470    1460    1470       ---     ---     ---      2040    1960    2000      1900    1880    1880
            18     1480    1460    1470       ---     ---     ---      1960    1880    1910      1880    1870    1880
            19     1480    1460    1470       ---     ---     ---      1890    1800    1850      1870    1850    1860
            20     1460    1450    1460       ---     ---     ---       ---     ---     ---      1850    1820    1830

            21     1460    1450    1450       ---     ---     ---       ---     ---     ---      1820    1810    1820
            22     1490    1450    1480       ---     ---     ---       ---     ---     ---      1820    1790    1800
            23     1490    1460    1480       ---     ---     ---      2010    1960    1980      1800    1780    1790
            24     1520    1470    1500       ---     ---     ---      2030    2010    2020      1800    1780    1780
            25     1530    1520    1530       ---     ---     ---      2030    2020    2020      1800    1780    1780

            26     1550    1520    1530      1480    1470    1480      2030    2020    2020      1810    1790    1800
            27     1660    1550    1630      1480    1460    1470       ---     ---     ---      1840    1810    1820
            28     1650    1610    1620      1480    1460    1470      2060    2010    2060      1850    1830    1840
            29     1670    1610    1630      1480    1460    1470      2080    2060    2070      1850    1840    1850
            30     1810    1670    1730      1500    1470    1480      2090    2080    2080      1840    1820    1830
            31      ---     ---     ---      1500    1420    1440      2080    2060    2070       ---     ---     ---

           MONTH   1810    1430    1510       ---     ---     ---       ---     ---     ---      2070    1780    1890


                      PH, WATER, WHOLE, FIELD, STANDARD UNITS, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000

         DAY      MAX     MIN       MAX     MIN       MAX     MIN       MAX     MIN       MAX     MIN       MAX     MIN

                    OCTOBER          NOVEMBER          DECEMBER           JANUARY          FEBRUARY            MARCH

           1      ---     ---       8.4     8.1       8.2     8.1       7.6     7.5       7.4     7.4       ---     ---
           2      ---     ---       8.3     8.2       8.2     8.1       7.5     7.5       7.4     7.4       7.7     7.7
           3      ---     ---       8.3     8.2       8.2     8.1       7.5     7.5       7.4     7.4       7.8     7.7
           4      ---     ---       8.2     8.2       8.1     8.1       7.5     7.5       7.4     7.4       7.9     7.8
           5      ---     ---       8.2     8.2       8.1     8.0       7.5     7.5       7.4     7.4       7.9     7.8

           6      ---     ---       8.2     8.2       8.0     7.9       7.5     7.4       7.4     7.4       8.0     7.9
           7      ---     ---       8.2     8.1       7.9     7.9       7.4     7.4       7.4     7.4       8.1     7.9
           8      ---     ---       8.1     8.1       7.9     7.9       7.4     7.4       7.4     7.4       8.1     8.0
           9      ---     ---       8.1     8.1       7.9     7.8       7.4     7.4       7.4     7.4       8.1     8.0
          10      ---     ---       8.1     8.0       7.9     7.8       7.4     7.4       7.4     7.4       8.1     8.0

          11      ---     ---       8.2     8.1       7.8     7.8       7.4     7.4       7.4     7.4       8.2     8.1
          12      ---     ---       8.2     8.2       7.8     7.8       7.4     7.4       7.4     7.4       8.2     8.1
          13      ---     ---       8.2     8.1       ---     ---       7.4     7.4       7.5     7.4       8.2     8.1
          14      ---     ---       8.2     8.2       7.8     7.8       7.4     7.4       7.5     7.5       8.2     8.1
          15      ---     ---       8.2     8.2       7.8     7.8       7.4     7.4       7.5     7.5       8.3     8.1

          16      ---     ---       8.3     8.2       7.8     7.7       7.4     7.3       7.5     7.5       8.4     8.2
          17      ---     ---       8.3     8.2       7.7     7.7       7.3     7.3       7.5     7.5       8.4     8.3
          18      ---     ---       8.3     8.2       7.7     7.7       7.3     7.3       7.5     7.5       8.4     8.3
          19      ---     ---       8.3     8.2       7.7     7.7       7.3     7.3       7.5     7.5       8.5     8.4
          20      ---     ---       8.3     8.2       7.7     7.6       7.3     7.3       7.5     7.5       8.5     8.4

          21      ---     ---       8.3     8.2       7.6     7.6       7.3     7.3       7.5     7.5       8.5     8.4
          22      ---     ---       8.3     8.2       7.6     7.5       7.3     7.3       7.5     7.5       8.4     8.4
          23      ---     ---       8.2     8.2       7.5     7.5       7.4     7.3       7.6     7.5       8.4     8.3
          24      ---     ---       8.2     8.2       7.5     7.5       7.4     7.4       7.6     7.5       8.4     8.3
          25      ---     ---       8.2     8.2       7.5     7.5       7.4     7.4       7.6     7.5       8.4     8.3

          26      ---     ---       8.2     8.2       7.5     7.5       7.4     7.4       7.8     7.6       8.3     8.3
          27      ---     ---       8.2     8.1       7.5     7.5       7.4     7.4       7.8     7.6       8.3     8.3
          28      8.3     8.2       8.2     8.1       7.5     7.5       7.4     7.4       7.7     7.6       8.4     8.3
          29      8.2     8.1       8.2     8.1       7.5     7.5       7.4     7.4       ---     ---       8.4     8.3
          30      8.2     8.1       8.2     8.1       7.6     7.5       7.4     7.4       ---     ---       8.3     8.3
          31      8.2     8.1       ---     ---       7.6     7.5       7.4     7.4       ---     ---       8.3     8.3

         MONTH    8.3     8.1       8.4     8.0       8.2     7.5       7.6     7.3       7.8     7.4       8.5     7.7


                      PH, WATER, WHOLE, FIELD, STANDARD UNITS, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000

         DAY      MAX     MIN       MAX     MIN       MAX     MIN       MAX     MIN       MAX     MIN       MAX     MIN

                     APRIL              MAY              JUNE              JULY             AUGUST           SEPTEMBER

           1      8.3     8.3       8.4     8.3       8.2     8.1       8.6     8.4       8.0     7.9       8.5     8.5
           2      8.3     8.2       8.3     8.3       8.2     8.1       8.6     8.4       8.2     8.0       8.5     8.4
           3      8.3     8.3       8.5     8.3       8.1     8.1       8.4     8.3       8.2     7.8       8.4     8.4
           4      8.3     8.2       8.5     8.4       8.1     8.1       8.3     8.2       ---     ---       8.4     8.4
           5      8.3     8.1       8.5     8.4       8.1     8.0       8.2     8.1       8.0     7.9       8.4     8.3

           6      8.3     8.3       8.5     8.4       8.1     8.0       8.1     8.0       8.1     8.0       8.3     8.3
           7      8.3     8.2       8.4     8.3       8.0     7.9       8.1     8.0       8.3     8.1       8.4     8.3
           8      8.3     8.3       8.5     8.3       8.0     7.9       8.1     8.0       8.4     8.2       8.4     8.4
           9      8.4     8.3       8.5     8.4       8.0     8.0       8.1     7.9       8.4     8.3       8.5     8.4
          10      8.4     8.4       8.4     8.4       8.0     8.0       8.2     8.0       8.3     8.3       8.5     8.4

          11      8.4     8.4       8.4     8.3       8.0     7.9       ---     ---       8.3     8.2       8.5     8.5
          12      8.4     8.4       8.6     8.4       7.9     7.9       ---     ---       8.3     8.2       8.5     8.5
          13      8.4     8.3       8.6     8.5       8.0     7.9       ---     ---       8.3     8.2       8.5     8.4
          14      8.4     8.4       8.6     8.5       8.0     7.9       ---     ---       8.2     8.1       8.5     8.4
          15      8.4     8.4       8.5     8.5       8.0     7.9       ---     ---       8.3     8.2       8.5     8.4

          16      8.4     8.4       8.5     8.4       8.1     8.0       ---     ---       8.3     8.2       8.5     8.3
          17      8.4     8.4       8.5     8.3       8.1     8.0       ---     ---       8.3     8.3       8.4     8.3
          18      8.4     8.3       8.4     8.3       8.1     8.0       ---     ---       8.4     8.2       8.3     8.2
          19      8.4     8.4       8.3     8.3       8.1     8.1       ---     ---       8.3     8.2       8.4     8.2
          20      8.4     8.4       8.3     8.3       8.2     8.1       ---     ---       ---     ---       8.4     8.3

          21      8.4     8.3       8.3     8.2       8.3     8.2       ---     ---       ---     ---       8.3     8.3
          22      8.3     8.3       8.2     8.2       8.3     8.0       ---     ---       ---     ---       8.4     8.2
          23      8.3     8.3       8.2     8.2       8.3     8.1       ---     ---       8.4     8.3       8.5     8.3
          24      8.3     8.2       8.2     8.2       8.4     8.2       ---     ---       8.4     8.3       8.5     8.3
          25      8.3     8.2       8.2     8.2       8.4     8.2       ---     ---       8.4     8.3       8.4     8.2

          26      8.3     8.2       8.2     8.1       8.4     8.2       8.2     8.2       8.4     8.4       8.3     8.2
          27      8.3     8.2       8.1     8.1       8.4     8.3       8.2     8.1       ---     ---       8.4     8.3
          28      8.3     8.2       8.1     8.1       8.4     8.3       8.1     8.0       8.5     8.4       8.4     8.3
          29      8.4     8.3       8.1     8.1       8.4     8.3       8.1     8.0       8.5     8.5       8.4     8.3
          30      8.4     8.3       8.2     8.1       8.4     8.3       8.0     8.0       8.5     8.4       8.4     8.3
          31      ---     ---       8.2     8.1       ---     ---       8.0     7.8       8.5     8.5       ---     ---

         MONTH    8.4     8.1       8.6     8.1       8.4     7.9       8.6     7.8       8.5     7.8       8.5     8.2

         YEAR     8.6     7.3


                              OXYGEN DISSOLVED (MG/L), 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      ---     ---     ---      13.5    11.2    12.3      16.1    14.6    15.3      12.0     9.4    10.4
             2      ---     ---     ---      13.9    12.0    12.7      15.9    14.6    15.4       9.4     8.6     9.1
             3      ---     ---     ---      13.5    12.2    12.7      16.3    14.6    15.5       9.2     7.4     8.3
             4      ---     ---     ---      13.0    12.2    12.7      16.0    14.3    15.2       7.4     6.9     7.3
             5      ---     ---     ---      13.0    11.5    12.3      15.8    14.4    15.2       6.9     6.2     6.5

             6      ---     ---     ---      13.5    12.3    12.9      15.1    13.5    14.4       6.2     5.1     5.5
             7      ---     ---     ---      13.2    12.0    12.6      14.4    13.1    13.8       5.1     4.2     4.5
             8      ---     ---     ---      12.9    11.6    12.2      13.9    12.7    13.4       4.2     3.8     4.1
             9      ---     ---     ---      12.2    11.3    11.8      13.8    12.7    13.3       4.0     3.5     3.7
            10      ---     ---     ---      13.0    11.2    12.0      14.0    12.7    13.4       3.6     3.3     3.5

            11      ---     ---     ---      13.0    11.5    12.3      13.9    12.7    13.3       3.3     3.0     3.2
            12      ---     ---     ---      13.2    11.6    12.3      13.7    12.5    13.2       3.1     2.5     2.8
            13      ---     ---     ---      12.6    11.1    11.9       ---     ---     ---       2.7     2.4     2.5
            14      ---     ---     ---      12.9    11.1    11.9      14.1    12.7    13.4       2.8     2.6     2.7
            15      ---     ---     ---      12.9    11.5    12.2      14.3    12.9    13.6       2.7     2.5     2.6

            16      ---     ---     ---      13.1    11.7    12.3      13.9    12.0    13.0       2.6     2.3     2.4
            17      ---     ---     ---      13.6    11.7    12.6      12.0    11.5    11.8       2.3     2.0     2.1
            18      ---     ---     ---      13.2    11.7    12.5      11.6    10.9    11.2       2.4     2.0     2.2
            19      ---     ---     ---      13.5    12.2    12.8      11.0    10.1    10.4       2.2     1.9     2.0
            20      ---     ---     ---      13.8    12.3    13.0      10.4     9.8    10.0       2.2     2.0     2.1

            21      ---     ---     ---      13.6    12.4    13.1       9.8     9.0     9.4       2.1     1.8     1.9
            22      ---     ---     ---      14.0    12.6    13.3       9.0     8.0     8.3       2.0     1.7     1.8
            23      ---     ---     ---      14.2    13.0    13.6       8.3     7.2     7.6       1.9     1.6     1.8
            24      ---     ---     ---      14.4    13.4    13.9       7.8     6.9     7.3       1.7     1.4     1.5
            25      ---     ---     ---      14.2    13.4    13.8       7.9     6.6     7.1       1.8     1.6     1.7

            26      ---     ---     ---      14.5    13.2    13.8       8.9     7.0     7.7       1.8     1.4     1.5
            27      ---     ---     ---      15.0    13.8    14.4       9.5     7.2     8.2       1.6     1.3     1.4
            28     15.4    12.9    14.0      15.7    14.2    14.9      10.3     8.4     9.1       2.0     1.5     1.7
            29     15.0    12.8    13.9      16.3    14.9    15.5      11.0     9.1     9.9       1.9     1.6     1.7
            30     15.2    12.6    13.8      16.0    14.9    15.5      11.9     9.4    10.7       1.7     1.5     1.6
            31     14.9    12.5    13.6       ---     ---     ---      12.3     9.8    11.1       1.7     1.5     1.6

           MONTH    ---     ---     ---      16.3    11.1    13.0       ---     ---     ---      12.0     1.3     3.4


                              OXYGEN DISSOLVED (MG/L), 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      1.7     1.4     1.5       ---     ---     ---      13.2    11.3    12.3      12.3     8.6    10.3
             2      1.9     1.5     1.6      11.2     9.8    10.5      13.0    11.1    12.0      11.7     8.3    10.0
             3      2.4     1.7     2.0      12.2    10.3    11.1      13.6    11.8    12.6      11.1     7.3     9.2
             4      2.5     2.0     2.2      12.5    10.9    11.6      13.5    11.9    12.7      10.1     6.9     8.5
             5      2.5     2.1     2.2      12.5    10.9    11.6      12.6    10.6    11.5       9.6     6.8     8.1

             6      2.7     2.2     2.4      13.3    11.5    12.3      13.6    11.4    12.4       9.7     6.4     8.0
             7      2.7     2.3     2.4      13.8    11.9    12.8      13.5    11.8    12.7       8.6     5.8     7.1
             8      2.9     2.4     2.6      14.7    12.5    13.5      13.2    12.3    12.8       9.2     5.3     7.2
             9      2.9     2.4     2.6      14.9    13.1    14.0      13.5    11.2    12.3       8.9     6.6     7.7
            10      2.4     2.1     2.2      15.6    13.8    14.7      14.2    12.1    13.1       9.3     6.9     8.1

            11      2.1     1.9     2.0      16.8    14.0    15.3      14.3    13.1    13.7       8.5     6.5     7.3
            12      2.2     1.8     2.0      17.2    14.6    15.9      14.3    12.5    13.4      12.1     7.9     9.8
            13      2.4     2.1     2.2      16.8    14.6    15.6      14.0    12.2    13.1      12.0    10.3    11.2
            14      2.4     2.3     2.3      17.0    14.9    15.9      14.3    12.4    13.4      12.3     9.9    11.2
            15      2.4     2.1     2.2      18.6    15.0    16.7      14.1    12.4    13.4      11.4     9.8    10.5

            16      2.2     2.0     2.1      19.6    16.4    18.1      14.0    12.3    13.2      12.0     9.7    10.7
            17      2.1     1.9     2.0      19.6    17.7    18.7      13.9    11.6    12.8      11.1     8.8    10.0
            18      2.2     1.8     2.0      19.6    17.7    19.0      13.4    10.5    11.9      10.2     7.7     9.0
            19      2.3     2.0     2.1      19.6    18.0    19.2      13.7    10.5    12.1       9.4     7.1     8.3
            20      2.5     2.2     2.3      19.6    17.4    18.9      13.8    10.5    12.2       9.0     6.4     7.8

            21      2.5     2.2     2.3      19.6    17.2    18.7      13.1     9.8    11.5       9.3     5.8     7.4
            22      3.1     2.2     2.5      19.3    16.3    17.8      12.3     8.9    10.6       8.4     5.8     7.0
            23      4.0     2.8     3.3      18.0    15.4    16.8      12.0     8.6    10.3       8.3     5.8     7.0
            24      4.8     3.8     4.1      15.7    13.4    14.6      11.5     8.1     9.8       9.4     6.3     7.8
            25      7.1     4.8     5.5      15.4    13.6    14.6      11.2     7.8     9.5       9.6     6.9     8.2

            26     10.1     7.1     8.5      14.3    12.1    13.0      10.2     7.6     8.9       8.8     6.4     7.7
            27     10.0     8.8     9.4      13.6    11.3    12.6      11.9     7.7     9.6       9.2     6.6     7.7
            28     10.2     9.0     9.6      14.0    11.6    12.8      11.6     8.2     9.9       9.1     5.8     7.4
            29      ---     ---     ---      13.6    12.3    13.0      10.9     8.5     9.7       9.4     6.1     7.6
            30      ---     ---     ---      13.4    11.9    12.7      12.1     8.6    10.3       9.7     6.4     8.0
            31      ---     ---     ---      13.3    11.8    12.5       ---     ---     ---       9.7     6.5     8.1

           MONTH    ---     ---     ---       ---     ---     ---      14.3     7.6    11.8      12.3     5.3     8.5


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

                           JUNE                     JULY                     AUGUST                    SEPTEMBER

             1      9.1     7.1     8.1       9.6     5.8     7.3       6.2     3.6     5.0       7.6     6.0     6.7
             2     10.3     7.6     8.8       7.6     5.4     6.4       7.4     5.0     6.0       7.0     6.4     6.7
             3      9.4     7.3     8.2       8.4     5.7     6.9       6.8     3.3     4.1       7.2     5.9     6.5
             4     10.4     7.6     8.8       7.2     6.0     6.3       ---     ---     ---       7.0     5.9     6.4
             5      ---     ---     ---       6.8     5.5     6.0       6.7     3.9     5.1       7.0     5.5     6.2

             6      ---     ---     ---       6.0     5.0     5.4       7.7     4.2     5.7       6.8     5.5     6.1
             7      ---     ---     ---       6.3     4.6     5.3       8.6     4.8     6.5       7.6     5.8     6.6
             8      ---     ---     ---       6.7     4.4     5.3       8.1     4.8     6.3       8.3     6.1     7.1
             9      ---     ---     ---       5.6     3.9     4.6       7.6     4.7     6.1       7.9     6.3     7.1
            10      ---     ---     ---       7.3     4.5     5.6       6.9     4.6     5.7       8.0     6.7     7.2

            11      ---     ---     ---       ---     ---     ---       6.2     4.2     5.2       8.0     6.8     7.5
            12      ---     ---     ---       ---     ---     ---       6.6     4.1     5.2       8.0     7.0     7.5
            13      ---     ---     ---       ---     ---     ---       5.7     4.5     5.0       7.7     6.8     7.2
            14      ---     ---     ---       ---     ---     ---       6.4     3.9     4.9       7.7     6.6     7.2
            15      ---     ---     ---       ---     ---     ---       6.5     4.7     5.5       7.6     6.8     7.1

            16      ---     ---     ---       ---     ---     ---       7.0     5.2     5.9       7.4     6.2     6.7
            17      ---     ---     ---       ---     ---     ---       7.0     5.4     6.1       6.9     5.8     6.4
            18      ---     ---     ---       ---     ---     ---       7.6     5.6     6.4       6.7     4.7     5.6
            19      ---     ---     ---       ---     ---     ---       6.9     5.9     6.3       6.5     4.6     5.3
            20      ---     ---     ---       ---     ---     ---       ---     ---     ---       7.3     6.3     6.7

            21      ---     ---     ---       ---     ---     ---       ---     ---     ---       7.5     6.6     7.1
            22      ---     ---     ---       ---     ---     ---       ---     ---     ---       7.6     6.5     7.1
            23      ---     ---     ---       ---     ---     ---       7.8     5.2     6.2       8.4     7.2     7.8
            24      ---     ---     ---       ---     ---     ---       7.2     5.5     6.2       8.7     8.0     8.3
            25      ---     ---     ---       ---     ---     ---       7.6     5.4     6.3       8.6     7.8     8.2

            26      ---     ---     ---       7.9     4.0     5.8       7.9     5.2     6.4       8.4     7.7     8.0
            27      9.9     6.1     7.9       7.0     3.9     5.2       ---     ---     ---       8.8     7.7     8.3
            28      9.9     6.1     7.8       6.8     3.4     4.9       6.9     4.4     5.8       8.8     7.4     8.1
            29      9.4     6.8     7.9       6.3     3.4     4.8       7.3     4.9     6.0       8.4     7.1     7.8
            30      7.5     5.9     6.6       6.6     3.3     4.8       7.2     5.1     6.1       8.4     6.9     7.7
            31      ---     ---     ---       5.9     3.2     4.3       7.5     5.4     6.2       ---     ---     ---

           MONTH    ---     ---     ---       ---     ---     ---       ---     ---     ---       8.8     4.6     7.1

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