RED RIVER OF THE NORTH BASIN

                                        05058000  SHEYENNE RIVER BELOW BALDHILL DAM, ND

LOCATION.--Lat 47o01'56", long 98o05'08", in NW1/4SW1/4SW1/4 sec.18, T.141 N., R.58 W., Barnes County, Hydrologic Unit 09020204,
   on left bank .7 mi downstream from Baldhill Dam, 8 mi northwest of Valley City, and at mile 269.8.

DRAINAGE AREA.--7,470 mi2, approximately, of which about 5,560 mi2 is probably noncontributing, including 3,800 mi2 in closed
   basins.

                                                    WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--October 1949 to current year. Monthly discharge only for some periods, published in WSP 1308.

REVISED RECORDS.--WSP 1728: Drainage area.

GAGE.--Water-stage recorder. Datum of gage is 1,200.00 ft above sea level. Prior to Dec. 29, 1994, at site .7 mi upstream at
   same datum.

REMARKS.--Records fair. Flow completely regulated by Lake Ashtabula (station 05057500). Records 1955 to 1972 include releases at
   Baldhill Dam to the fish-rearing ponds of the Fish and Wildlife Service. Small diversions are still made but not published.

                           DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
                                                        DAILY MEAN VALUES

         DAY       OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP

           1        28       70       57      104      117      350     2530      630      774      546      394      380
           2        30      320       58      104      118      358     2460      630      606      558      371      380
           3        31      353       59      104      120      359     2400      632      527      568      368      523
           4        31      303       61      104      124      349     2370      611      512      651      367      641
           5        33      304       66      103      121      354     2360      599      499      622      349      638

           6        33      305       66      105      123      351     2430     e625      570      513      273      594
           7        32      302       65      107      124      343     2440     e750      992      435      176      533
           8        33      305       64      104      126      343     2370      870     1380      435      206      447
           9        34      304       64      104      125      347     2560      868     1770      457      219      256
          10        36      310       65      104      126      339     2460     1020     1780      509      266      159

          11        38      320       63      103      130      345     2510     1480     1300      508      248      159
          12        38      311       62      104      128      333     2430     1880      900      509      252      156
          13        37      293       63      106      124      320     2180     1940      706      508      397      156
          14        36      298       77     e108      127      320     2100     1930      645      540      462      157
          15        33      307       96     e108      126      339     2100     1830      570      566      352      156

          16        16      311      100     e110      132      391     2100     1740      540      567      389      156
          17        24      310      107     e110      130      438     2090     1740      508      566      358      156
          18        15      309      107     e109      106      546     2080     1590      471      566      299      157
          19        14      329      116     e108       73      684     1990     1320      471      534      299      158
          20        13      312      113     e107      118      821     1860     1270      469      486      299      156

          21        13      308      115     e107      290      982     1860     1270      467      472      300      156
          22        13      283      115      113      404     1210     1690     1280      468      497      302      156
          23        13      285      110      111      404     1280     1460     1280      470      538      335      157
          24        13      286      110      113      398      990     1390     1220      468      536      399      159
          25        14      222      113      112      393      795     1390     1060      467      534      400      160

          26        14       78      115      112      369      794     1290      937      470      517      398      162
          27        13       76      114      113      364     1190     1060      938      470      457      393      162
          28        14       79      115      115      365     1880      843      884      482      416      389      164
          29        14       79      115      114      ---     2070      779      843      492      394      389      154
          30        14       72      114      114      ---     2280      688      849      505      395      389      140
          31        14      ---      109      116      ---     2460      ---      848      ---      395      383      ---

         TOTAL     734     7744     2774     3356     5405    23961    58270    35364    20749    15795    10421     7688
         MEAN     23.7      258     89.5      108      193      773     1942     1141      692      510      336      256
         MAX        38      353      116      116      404     2460     2560     1940     1780      651      462      641
         MIN        13       70       57      103       73      320      688      599      467      394      176      140
         AC-FT    1460    15360     5500     6660    10720    47530   115600    70140    41160    31330    20670    15250

         STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1950 - 1999, BY WATER YEAR (WY)

         MEAN     52.9     70.6     65.4     61.5     74.5      223      644      318      165      129     83.7     58.9
         MAX       622      291      231      182      300     1567     3329     2906     1154     1272     1555      577
         (WY)     1995     1995     1995     1995     1996     1995     1997     1950     1950     1993     1993     1994
         MIN      1.92     5.27     4.32     3.64     7.66     7.81     2.07     6.86     5.88     7.28     6.72      .81
         (WY)     1956     1956     1980     1956     1956     1955     1953     1959     1958     1959     1977     1955

         SUMMARY STATISTICS           FOR 1998 CALENDAR YEAR        FOR 1999 WATER YEAR           WATER YEARS 1950 - 1999

         ANNUAL TOTAL                       63288                     192261
         ANNUAL MEAN                          173                        527                        162
         HIGHEST ANNUAL MEAN                                                                        574              1995
         LOWEST ANNUAL MEAN                                                                          12.8            1991
         HIGHEST DAILY MEAN                  1330     Feb 28            2560     Apr  9            5410       Apr 20 1996
         LOWEST DAILY MEAN                     13     Oct 20              13     Oct 20                .00    Sep  8 1950
         ANNUAL SEVEN-DAY MINIMUM              13     Oct 19              13     Oct 19                .00    Aug  8 1952
         INSTANTANEOUS PEAK FLOW                                        2650     Apr  9            5460       Apr 20 1996
         INSTANTANEOUS PEAK STAGE                                         30.68  Apr  9              36.46    Apr 20 1996
         ANNUAL RUNOFF (AC-FT)             125500                     381300                     117400
         10 PERCENT EXCEEDS                   403                       1470                        320
         50 PERCENT EXCEEDS                    79                        339                         46
         90 PERCENT EXCEEDS                    27                         63                          9.3

         e  Estimated

                                                     WATER-QUALITY RECORDS

PERIOD OF RECORD.--Water year 1959 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. Interruptions in daily record are due to recorder malfunctions.

EXTREMES FOR PERIOD OF DAILY RECORD.--

   WATER TEMPERATURE: Maximum recorded, 28.3oC, July 20, 1998; minimum recorded, 0.3oC, Apr. 16, 1997.

   SPECIFIC CONDUCTANCE: Maximum recorded, 1,230 microsiemens, Feb. 24, 1998; minimum recorded, 401 microsiemens, Apr. 14, 1999.

EXTREMES FOR CURRENT YEAR.--

   WATER TEMPERATURE: Maximum recorded, 26.4oC, July 29; minimum recorded, 0.8oC, Jan. 12.

   SPECIFIC CONDUCTANCE: Maximum recorded, 1,140 microsiemens, Feb. 20; minimum recorded, 401 microsiemens, Apr. 14.


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

                                 DIS-     DIS-     PH       PH       SPE-
                               CHARGE,  CHARGE,   WATER    WATER    CIFIC    SPE-                       HARD-
                                  IN     INST.    WHOLE    WHOLE     CON-    CIFIC                      NESS    CALCIUM
                                CUBIC    CUBIC    FIELD     LAB     DUCT-    CON-    TEMPER-  TEMPER-   TOTAL    DIS-
                                 FEET     FEET   (STAND-  (STAND-   ANCE     DUCT-    ATURE    ATURE    (MG/L    SOLVED
              DATE      TIME     PER      PER      ARD      ARD      LAB     ANCE      AIR     WATER     AS      (MG/L
                                SECOND   SECOND   UNITS)   UNITS)  (US/CM)  (US/CM)  (DEG C)  (DEG C)   CACO3)   AS CA)
                               (00060)  (00061)  (00400)  (00403)  (90095)  (00095)  (00020)  (00010)  (00900)  (00915)

          OCT
            19...       1300      --       14       --       --       --      837       --      9.0       --       --
          NOV
            03...       1500      --      350       --       --       --      833      2.0      8.0       --       --
          DEC
            09...       1045      --       66       --       --       --      943       .5      2.0       --       --
          JAN
            20...       1400     107       --       --       --       --     1060       --      2.4       --       --
            21...       1035      --      107       --       --       --     1040       --      3.0       --       --
            28...       1420      --      108       --       --       --     1050       --      4.0       --       --
          MAR
            01...       1530     350       --       --       --       --     1070       --      4.3       --       --
            23...       1140      --     1270      8.3      8.1     1070     1090      3.5      4.5      380      76
          APR
            13...       1040    2180       --       --       --       --      469       --      3.5       --       --
            14...       0930    2100       --       --       --       --      403       --       --       --       --
          MAY
            05...       1020      --      576       --       --       --      513       --     12.5       --       --
            25...       1035    1060       --       --       --       --      662       --     15.6       --       --
          JUN
            09...       1420    1770       --       --       --       --      839       --     20.7       --       --
          JUL
            01...       1230     546       --       --       --       --      882       --     21.8       --       --
            14...       1500      --      573      8.7       --      905      904     26.0     23.0      330      66
          AUG
            11...       1130     248       --       --       --       --      932       --     23.3       --       --
          SEP
            16...       1500     156       --       --       --       --      832       --     16.6       --       --

                                                                     ANC                                        SOLIDS,
                       MAGNE-   POTAS-   SODIUM                    UNFLTRD   CHLO-    FLUO-            SOLIDS,  RESIDUE
                        SIUM,    SIUM,     AD-            SODIUM,  TIT 4.5   RIDE,    RIDE,   SULFATE    DIS-   AT 180
                        DIS-     DIS-    SORP-             DIS-      LAB     DIS-      DIS-    DIS-     SOLVED   DEG. C
                       SOLVED   SOLVED    TION            SOLVED    (MG/L    SOLVED   SOLVED   SOLVED   (TONS     DIS-
              DATE     (MG/L    (MG/L    RATIO    SODIUM   (MG/L     AS      (MG/L    (MG/L    (MG/L     PER     SOLVED
                       AS MG)   AS K)            PERCENT   AS NA)   CACO3)   AS CL)   AS F)   AS SO4)    DAY)    (MG/L)
                      (00925)  (00935)  (00931)  (00932)  (00930)  (90410)  (00940)  (00950)  (00945)  (70302)  (70300)

          OCT
            19...        --       --       --       --       --       --       --       --       --       --       --
          NOV
            03...        --       --       --       --       --       --       --       --       --       --       --
          DEC
            09...        --       --       --       --       --       --       --       --       --       --       --
          JAN
            20...        --       --       --       --       --       --       --       --       --       --       --
            21...        --       --       --       --       --       --       --       --       --       --       --
            28...        --       --       --       --       --       --       --       --       --       --       --
          MAR
            01...        --       --       --       --       --       --       --       --       --       --       --
            23...       45       13        2       36       100      358     22         .20     240     2620      764
          APR
            13...        --       --       --       --       --       --       --       --       --       --       --
            14...        --       --       --       --       --       --       --       --       --       --       --
          MAY
            05...        --       --       --       --       --       --       --       --       --       --       --
            25...        --       --       --       --       --       --       --       --       --       --       --
          JUN
            09...        --       --       --       --       --       --       --       --       --       --       --
          JUL
            01...        --       --       --       --       --       --       --       --       --       --       --
            14...       40       12        2       34        80      295      9.1       .20     210      956      618
          AUG
            11...        --       --       --       --       --       --       --       --       --       --       --
          SEP
            16...        --       --       --       --       --       --       --       --       --       --       --


                           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
                 19...        --       --       --       --       --       --       --       --       --       --
               NOV
                 03...        --       --       --       --       --       --       --       --       --       --
               DEC
                 09...        --       --       --       --       --       --       --       --       --       --
               JAN
                 20...        --       --       --       --       --       --       --       --       --       --
                 21...        --       --       --       --       --       --       --       --       --       --
                 28...        --       --       --       --       --       --       --       --       --       --
               MAR
                 01...        --       --       --       --       --       --       --       --       --       --
                 23...       712       5       30      <1.0      70       300      <.1      1.0      <1       380
               APR
                 13...        --       --       --       --       --       --       --       --       --       --
                 14...        --       --       --       --       --       --       --       --       --       --
               MAY
                 05...        --       --       --       --       --       --       --       --       --       --
                 25...        --       --       --       --       --       --       --       --       --       --
               JUN
                 09...        --       --       --       --       --       --       --       --       --       --
               JUL
                 01...        --       --       --       --       --       --       --       --       --       --
                 14...       595       4       10      <1.0      60       120      <.1      1.0      <1       370
               AUG
                 11...        --       --       --       --       --       --       --       --       --       --
               SEP
                 16...        --       --       --       --       --       --       --       --       --       --

                             TEMPERATURE, WATER (DEG. C), WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999

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

                           OCTOBER                 NOVEMBER                  DECEMBER                    JANUARY

              1     18.7    15.1    16.8      10.7     9.1     9.8       3.1     1.9     2.3       1.5     1.3     1.4
              2     17.7    15.0    16.4       9.9     9.4     9.7       2.9     1.9     2.3       1.9     1.2     1.6
              3     17.6    15.0    16.3       9.5     8.9     9.2       3.2     2.2     2.5       1.5      .9     1.2
              4     16.8    14.8    15.5       8.9     8.3     8.6       2.6     1.8     2.2       1.8     1.0     1.4
              5     16.1    14.5    15.2       8.3     7.6     7.9       2.5     1.8     2.1       2.3     1.5     1.9

              6     15.8    14.6    15.1       7.6     7.0     7.3       2.8     1.9     2.2       1.8     1.2     1.5
              7     17.0    13.6    15.0       7.1     6.8     6.9       2.8     1.7     2.1       2.1     1.3     1.6
              8     16.8    13.6    15.1       6.8     6.5     6.7       2.9     1.8     2.3       1.9     1.4     1.6
              9     17.4    14.1    15.6       6.5     6.1     6.4       2.8     2.0     2.3       2.0     1.1     1.5
             10     16.3    14.1    14.5       6.1     5.0     5.5       3.0     1.9     2.3       1.9     1.0     1.5

             11     14.5    13.0    13.9       5.1     4.6     4.8       3.3     2.3     2.7       2.0     1.1     1.6
             12     13.3    11.2    12.2       4.7     4.1     4.4       3.3     2.2     2.7       1.6      .8     1.2
             13     13.8    11.0    12.3       4.5     4.0     4.2       3.4     2.5     2.9       1.7     1.4     1.5
             14     13.0    11.3    11.8       4.1     3.5     4.0       3.5     2.5     2.8       2.3     1.5     1.8
             15     12.6    11.0    11.8       3.6     3.3     3.5       2.9     2.3     2.5       2.9     1.7     2.2

             16     12.5    11.6    12.1       3.3     2.8     3.0       3.2     2.5     2.8       3.0     1.9     2.3
             17     11.6     9.6    10.1       3.1     2.2     2.9       2.8     2.3     2.5       2.6     2.0     2.4
             18     11.2     9.4    10.1       2.2     1.0     1.5       2.7     1.0     2.2       2.8     1.8     2.2
             19     11.1     8.5    10.0       1.3     1.0     1.1       1.9      .9     1.4       2.8     1.8     2.2
             20     11.6     9.0    10.4       1.3     1.0     1.1       1.8     1.5     1.6       2.4     1.7     2.1

             21     12.1     9.7    10.8       1.5     1.1     1.2       1.9     1.2     1.6       3.5     2.2     3.0
             22     12.3     9.4    10.8       1.7     1.2     1.4       2.0     1.2     1.6       3.8     3.3     3.5
             23     12.5     9.7    11.1       1.8     1.3     1.5       1.9     1.4     1.6       3.8     3.2     3.4
             24     12.4    10.1    11.3       2.0     1.5     1.7       2.3     1.5     1.8       3.8     2.7     3.3
             25     12.2    11.2    11.4       2.2     1.6     1.8       2.2     1.6     1.9       3.6     2.4     2.9

             26     11.7    11.0    11.3       2.6     1.5     1.9       2.3     1.6     1.9       3.8     2.5     3.1
             27     12.2    10.3    11.2       2.6     1.6     1.9       2.3     1.8     2.0       4.0     2.5     3.2
             28     11.8     9.8    10.9       2.5     1.6     2.0       2.2      .9     1.9       4.2     3.2     3.6
             29     11.6    10.5    10.7       2.7     1.9     2.2       1.9      .9     1.4       4.4     3.1     3.5
             30     11.0     9.6    10.3       3.0     2.2     2.5       2.0     1.5     1.7       4.4     3.0     3.5
             31     10.6     9.2    10.0       ---     ---     ---       2.1     1.4     1.8       4.4     3.1     3.6

            MONTH   18.7     8.5    12.6      10.7     1.0     4.2       3.5      .9     2.1       4.4      .8     2.3


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

                          FEBRUARY                   MARCH                     APRIL                       MAY

              1      4.3     3.2     3.7       4.2     3.4     3.7       2.1     1.7     1.8      10.8     9.0    10.0
              2      4.6     2.9     3.6       3.9     3.4     3.5       1.7     1.5     1.6      11.7    10.2    10.9
              3      4.1     2.3     3.6       4.2     3.3     3.6       1.9     1.5     1.6      12.7    11.7    12.3
              4      3.8     2.2     3.0       3.8     3.4     3.6       2.2     1.9     2.0      13.4    12.6    13.0
              5      4.5     3.0     3.6       4.1     3.4     3.6       1.9     1.6     1.8      14.2    13.2    13.7

              6      4.2     2.9     3.3       4.1     3.3     3.6       1.7     1.5     1.6      14.9    14.0    14.5
              7      4.8     3.2     3.7       4.1     3.4     3.6       1.9     1.3     1.7      14.2    13.2    13.4
              8      4.9     3.4     4.0       3.9     3.4     3.6       2.4     1.8     2.0      13.7    12.8    13.2
              9      4.8     3.2     3.7       4.1     3.4     3.7       2.8     2.2     2.5      13.6    12.4    13.1
             10      5.1     3.3     4.0       4.1     3.4     3.7       2.7     2.6     2.7      12.4    12.2    12.3

             11      4.0     2.6     3.1       4.2     3.3     3.6       3.1     2.7     2.9      12.6    12.2    12.4
             12      3.9     2.2     2.9       4.2     3.3     3.6       3.5     2.9     3.2      12.7    12.4    12.5
             13      4.6     2.8     3.5       4.2     3.4     3.7       4.2     3.3     3.7      12.7    12.5    12.6
             14      5.0     3.4     3.9       4.3     3.3     3.7       4.6     3.9     4.2      12.7    12.5    12.6
             15      3.9     2.9     3.4       4.4     3.4     3.8       4.9     4.2     4.5      14.1    12.6    12.9

             16      4.4     2.8     3.4       4.2     3.5     3.8       5.2     4.3     4.8      14.0    12.7    13.3
             17      4.2     2.8     3.3       4.1     3.6     3.8       5.1     4.3     4.6      14.2    12.7    13.7
             18      4.0     2.8     3.3       4.4     3.6     3.9       5.0     4.5     4.8      13.8    13.3    13.6
             19      4.1     2.7     3.3       4.5     3.8     4.1       7.2     4.9     5.7      14.2    13.4    13.8
             20      4.7     2.8     3.5       4.5     4.0     4.2       7.2     6.4     6.7      15.5    13.8    14.8

             21      3.7     3.0     3.3       4.4     4.0     4.2       7.4     7.2     7.3      17.5    15.1    15.9
             22      3.5     3.1     3.2       4.3     3.9     4.1       8.4     7.1     7.6      16.8    15.3    16.0
             23      3.5     3.1     3.2       4.3     4.0     4.1       9.6     7.4     8.3      16.6    15.6    15.9
             24      3.7     3.1     3.3       4.5     3.9     4.1       8.8     7.5     8.3      16.1    15.4    15.6
             25      3.8     3.1     3.4       4.7     4.1     4.3       8.7     7.6     8.0      17.2    15.4    16.1

             26      4.0     3.3     3.5       4.7     4.0     4.3       9.3     8.1     8.9      16.8    15.6    16.0
             27      3.7     3.3     3.4       4.1     3.7     3.9       9.9     8.9     9.4      17.4    15.8    16.5
             28      3.9     3.3     3.5       3.8     3.5     3.6      11.5     9.5    10.3      17.3    16.1    16.4
             29      ---     ---     ---       3.7     3.3     3.5      11.4     9.8    10.6      17.9    16.4    17.1
             30      ---     ---     ---       3.3     2.7     3.0      11.2     8.9    10.3      17.6    16.8    17.1
             31      ---     ---     ---       2.7     2.1     2.4       ---     ---     ---      17.6    16.5    17.0

            MONTH    5.1     2.2     3.5       4.7     2.1     3.7      11.5     1.3     5.1      17.9     9.0    14.1

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

                            JUNE                     JULY                     AUGUST                    SEPTEMBER

              1     17.4    16.9    17.1       ---     ---     ---      25.1    23.9    24.5      21.8    20.9    21.3
              2     19.6    16.6    17.7       ---     ---     ---      25.3    24.1    24.5      20.9    19.8    20.3
              3     18.9    17.3    18.2       ---     ---     ---      25.6    24.2    24.7      19.8    19.3    19.5
              4     18.6    17.4    17.9       ---     ---     ---      25.4    23.9    24.6      19.3    18.8    19.0
              5     20.8    18.0    19.2       ---     ---     ---      25.9    23.9    24.7      19.0    18.5    18.7

              6     21.1    18.5    20.1       ---     ---     ---      26.0    23.6    24.6      19.5    18.4    18.8
              7     20.1    19.5    19.8       ---     ---     ---      25.7    23.3    24.1      19.2    18.8    19.0
              8     19.9    19.3    19.6       ---     ---     ---      26.1    22.6    23.9      18.8    17.9    18.4
              9     20.9    19.1    20.3       ---     ---     ---      25.8    22.8    24.0      18.4    17.2    17.7
             10     21.1    20.6    20.8       ---     ---     ---      25.5    23.1    24.0      18.7    16.7    17.5

             11     21.9    20.7    21.3       ---     ---     ---      24.2    23.0    23.5      17.4    16.9    17.2
             12     21.6    21.1    21.3       ---     ---     ---      23.2    21.1    22.0      17.2    16.3    16.8
             13     21.4    20.9    21.2       ---     ---     ---      22.5    20.8    21.5       ---     ---     ---
             14     21.4    20.4    20.8       ---     ---     ---      22.2    21.3    21.7       ---     ---     ---
             15     21.4    20.7    21.1       ---     ---     ---      22.4    21.2    21.8       ---     ---     ---

             16      ---     ---     ---       ---     ---     ---      22.1    21.0    21.5       ---     ---     ---
             17      ---     ---     ---       ---     ---     ---      22.1    21.0    21.5      17.2    15.1    15.9
             18      ---     ---     ---       ---     ---     ---      22.2    21.1    21.5      16.9    15.5    16.0
             19      ---     ---     ---       ---     ---     ---      22.4    20.9    21.5      16.2    15.3    15.8
             20      ---     ---     ---       ---     ---     ---      21.4    20.6    21.0      16.4    14.7    15.3

             21      ---     ---     ---       ---     ---     ---      22.1    20.6    21.2      16.5    14.6    15.2
             22      ---     ---     ---       ---     ---     ---      22.1    20.8    21.3      16.7    14.6    15.3
             23      ---     ---     ---       ---     ---     ---      21.5    20.5    21.0      16.7    14.6    15.4
             24      ---     ---     ---      25.5    23.6    24.5      22.0    20.9    21.3      16.8    15.1    15.7
             25      ---     ---     ---      25.2    24.0    24.6      22.0    20.8    21.3      16.1    15.0    15.4

             26      ---     ---     ---      25.4    24.0    24.6      22.4    21.1    21.7      15.1    14.6    14.9
             27      ---     ---     ---      24.9    24.0    24.4      23.4    21.3    22.2      15.5    14.1    14.6
             28      ---     ---     ---      25.8    24.1    24.7      23.8    22.8    23.3      15.3    13.7    14.2
             29      ---     ---     ---      26.4    24.4    25.3      23.0    22.0    22.4      14.7    13.5    14.0
             30      ---     ---     ---      25.6    24.9    25.1      22.2    21.5    21.8      14.2    12.8    13.5
             31      ---     ---     ---      25.3    24.3    24.8      22.5    21.3    21.8       ---     ---     ---

            MONTH    ---     ---     ---       ---     ---     ---      26.1    20.5    22.6       ---     ---     ---


                  SPECIFIC CONDUCTANCE (MICROSIEMENS/CM AT 25 DEG.C), WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999

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

                           OCTOBER                 NOVEMBER                  DECEMBER                    JANUARY

              1      826     815     820       855     842     848       916     908     913      1030    1030    1030
              2      825     818     821       850     845     847       913     909     912      1030    1030    1030
              3      823     815     820       850     846     848       918     911     913      1030    1030    1030
              4      826     818     824       854     849     851       928     918     923      1030    1020    1030
              5      818     794     802       857     850     852       929     925     926      1030    1020    1030

              6      812     800     809       858     851     854       929     924     927      1030    1020    1030
              7      817     809     813       858     852     854       933     928     931      1040    1030    1030
              8      822     812     818       857     852     856       941     933     936      1040    1030    1030
              9      827     818     821       864     855     858       951     941     944      1040    1030    1030
             10      827     820     824       863     854     859       955     949     952      1040    1040    1040

             11      820     807     816       865     858     863       958     953     956      1040    1040    1040
             12      814     807     810       870     865     867       962     958     960      1040    1040    1040
             13      818     813     816       870     866     868       967     962     965      1040    1040    1040
             14      827     817     820       874     867     869       971     965     968      1040    1040    1040
             15      834     827     831       882     873     877       977     971     974      1040    1040    1040

             16      835     828     832       896     876     890       979     975     976      1050    1040    1050
             17      834     758     791       899     893     895       983     979     982      1060    1050    1050
             18      830     785     815       907     898     903       993     981     986      1060    1050    1050
             19      841     830     836       913     906     907       996     991     993      1060    1050    1050
             20      844     839     842       918     913     916       999     994     996      1060    1050    1060

             21      846     841     843       920     913     918      1000     999    1000      1050    1040    1040
             22      845     840     842       919     912     916      1000    1000    1000      1040    1040    1040
             23      846     841     844       919     912     916      1010    1000    1010      1040    1040    1040
             24      847     840     843       916     913     915      1010    1010    1010      1050    1040    1050
             25      849     841     846       916     913     915      1020    1010    1010      1050    1050    1050

             26      850     847     849       916     910     913      1020    1020    1020      1050    1050    1050
             27      849     842     846       917     913     915      1020    1020    1020      1050    1050    1050
             28      850     843     846       918     913     916      1030    1020    1020      1060    1050    1050
             29      843     833     840       918     914     916      1030    1020    1030      1060    1050    1060
             30      847     833     842       918     911     915      1030    1030    1030      1060    1060    1060
             31      856     841     849       ---     ---     ---      1030    1030    1030      1060    1060    1060

            MONTH    856     758     828       920     842     885      1030     908     975      1060    1020    1040

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

                          FEBRUARY                   MARCH                     APRIL                       MAY

              1     1070    1050    1060      1080    1070    1070       672     578     625       499     488     492
              2     1070    1060    1070      1080    1070    1070       578     535     555       502     497     499
              3     1080    1070    1070      1080    1070    1080       535     508     518       504     502     503
              4     1080    1070    1080      1080    1080    1080       516     486     501       506     504     505
              5     1080    1070    1080      1090    1080    1080       493     472     476       509     504     507

              6     1080    1080    1080      1090    1080    1090       476     473     475       520     508     516
              7     1080    1080    1080      1090    1070    1090       481     474     478       521     516     519
              8     1090    1080    1080      1100    1080    1090       490     481     485       521     519     520
              9     1090    1080    1090      1100    1090    1100       490     480     486       530     521     524
             10     1100    1080    1090      1100    1100    1100       483     475     479       534     527     532

             11     1100    1090    1100      1110    1100    1100       477     455     465       531     525     527
             12     1110    1100    1100      1110    1110    1110       465     459     463       540     531     535
             13     1110    1100    1100      1110    1110    1110       510     431     469       540     540     540
             14     1110    1100    1100      1110    1110    1110       431     401     411       547     540     543
             15     1120    1110    1110      1120    1110    1110       451     422     430       554     547     551

             16     1120    1110    1110      1110    1070    1100       470     439     457       556     553     554
             17     1120    1110    1120      1090    1040    1070       477     469     474       563     555     559
             18     1120    1090    1110      1060     952    1020       478     475     476       587     562     574
             19     1130    1090    1120      1050     972    1020       481     478     480       596     587     592
             20     1140    1110    1130      1090    1050    1080       481     471     478       610     593     600

             21     1120    1070    1090      1110    1090    1100       473     466     470       647     610     627
             22     1070    1070    1070      1120    1110    1110       472     467     470       658     632     644
             23     1070    1070    1070      1120    1120    1120       473     470     472       660     647     657
             24     1070    1070    1070      1120    1050    1090       476     471     472       667     659     661
             25     1070    1070    1070      1050     973    1010       476     472     474       695     663     670

             26     1070    1060    1070       991     941     975       474     471     472       700     671     684
             27     1070    1070    1070       959     864     913       475     472     473       712     685     698
             28     1080    1060    1070       912     863     888       481     471     474       722     699     708
             29      ---     ---     ---       863     787     827       482     476     478       735     721     727
             30      ---     ---     ---       787     719     752       494     477     484       755     729     746
             31      ---     ---     ---       720     672     694       ---     ---     ---       770     755     762

            MONTH   1140    1050    1090      1120     672    1040       672     401     481       770     488     590


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

                            JUNE                     JULY                     AUGUST                    SEPTEMBER

              1      768     762     766       ---     ---     ---       927     915     924       944     932     937
              2      774     763     767       ---     ---     ---       931     919     926       943     934     939
              3      782     769     776       ---     ---     ---       933     922     928       937     927     933
              4      791     771     777       ---     ---     ---       935     925     930       940     936     938
              5      794     783     787       ---     ---     ---       935     912     930       942     936     939

              6      811     794     803       ---     ---     ---       937     928     934       942     937     939
              7      816     806     810       ---     ---     ---       937     928     933       941     938     939
              8      838     816     833       ---     ---     ---       940     929     935       940     930     935
              9      847     829     839       ---     ---     ---       937     922     930       943     926     935
             10      853     847     850       ---     ---     ---       938     932     934       942     936     940

             11      873     853     858       ---     ---     ---       938     921     929       939     932     936
             12      874     827     866       ---     ---     ---       928     913     924       938     931     935
             13      876     872     874       ---     ---     ---       924     918     921       ---     ---     ---
             14      885     868     881       ---     ---     ---       926     920     923       ---     ---     ---
             15      885     865     879       ---     ---     ---       925     915     920       ---     ---     ---

             16      ---     ---     ---       ---     ---     ---       931     921     924       ---     ---     ---
             17      ---     ---     ---       ---     ---     ---       941     926     934       934     929     932
             18      ---     ---     ---       ---     ---     ---       938     925     933       934     928     931
             19      ---     ---     ---       ---     ---     ---       940     933     937       934     928     930
             20      ---     ---     ---       ---     ---     ---       942     932     938       936     926     930

             21      ---     ---     ---       ---     ---     ---       945     938     941       954     931     938
             22      ---     ---     ---       ---     ---     ---       948     914     938       946     930     940
             23      ---     ---     ---       ---     ---     ---       939     916     929       942     933     936
             24      ---     ---     ---       917     912     915       942     934     938       938     929     933
             25      ---     ---     ---       917     914     916       942     934     939       944     935     939

             26      ---     ---     ---       916     913     914       944     931     939       941     933     937
             27      ---     ---     ---       924     914     918       945     932     939       944     933     938
             28      ---     ---     ---       923     918     920       941     934     938       943     933     939
             29      ---     ---     ---       926     918     923       944     934     939       941     931     938
             30      ---     ---     ---       927     915     922       939     934     936       941     926     932
             31      ---     ---     ---       926     916     921       945     934     940       ---     ---     ---

            MONTH    ---     ---     ---       ---     ---     ---       948     912     932       ---     ---     ---

Return to 1999 Data Report

U.S. Department of the Interior || U.S. Geological Survey
Maintainer: Webmaster
Last update: Tuesday, 31-Aug-2004 13:34:38 EDT
Privacy || Disclaimer|| Accessibility || FOIA
URL: http://nd.water.usgs.gov/pubs/wdr/wdrnd991/htdocs/d.05058000wq99.html
FirstGov, "Your First Click to the U.S. Government"