JAMES RIVER BASIN

                                    06470875  JAMES RIVER AT DAKOTA LAKE DAM NEAR LUDDEN, ND

LOCATION.--Lat 4556'52", long 9810'29", in SE1/4NE1/4NE1/4 sec.34, T.129 N., R.60 W., Dickey County, Hydrologic Unit 10160003,
   on left bank, 10 ft upstream from dam, 4.5 mi southwest of Ludden and 0.8 mi upstream from North Dakota-South Dakota state
   line.

DRAINAGE AREA.--5,480 mi2, of which about 3,300 mi2 are probably noncontributing.

                                                    WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--October 1981 to current year.

GAGE.--Water-stage recorder and concrete dam control. Datum of gage is 1,280.00 ft above sea level.

REMARKS.--Records fair except for estimated daily discharges, which are poor. Flow regulated by upstream reservoirs, Jamestown
   Reservoir (station 06469000), Pipestem Lake, capacity 147,000 acre-ft, and Lake LaMoure.

                          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       858      237      257      107       47      388      320      225      188      374      519      462
          2       816      153      269      103       49      520      369      134      180      428     e500      474
          3       780      143      259      e92       52      625      354      158      183      403     e480      521
          4       759       98      283      e83      e53      683      194      208      203      362     e460      553
          5       773      183      218       75      e56      739      278      130      138      399     e470      514

          6       771      145      199      e71       60      818      253      223       88      418     e490      526
          7       750      117      191      e67      e60      843      225      284      175      471     e500      611
          8       722      148      190       64       63     e998      158      326      184      523     e510      565
          9       676      242      185       66       64     e983      221      240       41      515     e520      538
         10       648      206      184       63      e65     e895      226      211      162      483     e500      552

         11       568      152      181      e61      e64     e798      193      254      135      475     e460      562
         12       611      112      181      e58      e63     e715      127      183       80      504     e460      512
         13       544      191      174      e53      e57     e633      211      288       81      500     e490      537
         14       478      197      187      e49      e55     e577      311      225      260      485     e520      518
         15       501      180     e170      e46      e59     e492      178      236      167      493     e480      485

         16       481      197     e167      e49      e58     e368      124      213      190      528     e460      486
         17       415      177      155       47      e67     e300       92      292      141      540     e480      518
         18       427      307      148      e47      e66     e314      205      217      157      567     e480      509
         19       348      166      143      e48      e83     e294      268       64      147      562     e460      511
         20       269       67     e138      e51      e89      330      188      148      212      562      450      519

         21       385       99     e132      e48      e94      337      111      189      236      536      502      503
         22       259      156     e122      e45     e100      333      209      208      250      527      490      554
         23       182      161      112      e42       98      320      197      217      279      517      475      551
         24       107      153      110      e44      110      393      126      234      316      514      439      514
         25       170      166      109      e44      137      409      146      173      331      517      477      514

         26       152      218      113      e43      162      416      185      166      354      518      460      536
         27       189      232      112      e43      173      432      277      192      368      500      430      541
         28       106      239      115      e44      195      343      197      163      380      489      462      531
         29       143      235      112      e46      257      328      112      211      359      486      444      538
         30       143      226      114      e47      ---      314      189      209      337      483      451      560
         31        61      ---      110      e46      ---      342      ---      213      ---      502      500      ---

        TOTAL   14092     5303     5140     1792     2556    16280     6244     6434     6322    15181    14819    15815
        MEAN      455      177      166     57.8     88.1      525      208      208      211      490      478      527
        MAX       858      307      283      107      257      998      369      326      380      567      520      611
        MIN        61       67      109       42       47      294       92       64       41      362      430      462
        AC-FT   27950    10520    10200     3550     5070    32290    12380    12760    12540    30110    29390    31370

        STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1982 - 2000, BY WATER YEAR (WY)

        MEAN      190      124     58.1     27.2     29.6      363      836      595      430      375      308      264
        MAX       867      512      190     77.1     88.1      853     4617     2316     1447     1181     1143     1003
        (WY)     1994     1994     1999     1995     2000     1995     1997     1997     1997     1995     1993     1999
        MIN      1.86      .20      .28     .056      .62     26.0     33.4     9.92     2.12     .015     .000     .011
        (WY)     1989     1991     1991     1991     1989     1990     1990     1990     1988     1988     1988     1990

        SUMMARY STATISTICS           FOR 1999 CALENDAR YEAR        FOR 2000 WATER YEAR           WATER YEARS 1982 - 2000

        ANNUAL TOTAL                      275908                     109978
        ANNUAL MEAN                          756                        300                        301
        HIGHEST ANNUAL MEAN                                                                        969              1997
        LOWEST ANNUAL MEAN                                                                          10.3            1990
        HIGHEST DAILY MEAN                  2720     May 20             998     Mar  8            7500       Apr  6 1997
        LOWEST DAILY MEAN                     40     Feb 22              41     Jun  9                .00    Oct  8 1981
        ANNUAL SEVEN-DAY MINIMUM              41     Feb 18              44     Jan 22                .00    Jul 10 1985
        INSTANTANEOUS PEAK FLOW                                      a 1300     Mar  8            7500       Apr  6 1997
        INSTANTANEOUS PEAK STAGE                                       a 11.70  Mar  8              17.86    Apr  6 1997
        INSTANTANEOUS LOW FLOW                                                                        .00    Oct  2 1981
        ANNUAL RUNOFF (AC-FT)             547300                     218100                     218000
        10 PERCENT EXCEEDS                  1400                        542                        961
        50 PERCENT EXCEEDS                   910                        229                         85
        90 PERCENT EXCEEDS                    45                         63                           .17
        

        a  About
        e  Estimated
        
        
                                                     WATER-QUALITY RECORDS

PERIOD OF RECORD.--Water year 1983 to current year.

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

                                     DIS-     PH       SPE-
                                   CHARGE,   WATER    CIFIC    SPE-                       HARD-             MAGNE-
                                    INST.    WHOLE     CON-    CIFIC                      NESS    CALCIUM    SIUM,
                                    CUBIC    FIELD    DUCT-    CON-    TEMPER-  TEMPER-   TOTAL    DIS-      DIS-
                                     FEET   (STAND-   ANCE     DUCT-    ATURE    ATURE    (MG/L    SOLVED   SOLVED
                  DATE      TIME     PER      ARD      LAB     ANCE      AIR     WATER     AS      (MG/L    (MG/L
                                    SECOND   UNITS)  (US/CM)  (US/CM)  (DEG C)  (DEG C)   CACO3)   AS CA)   AS MG)
                                   (00061)  (00400)  (90095)  (00095)  (00020)  (00010)  (00900)  (00915)  (00925)
                                                            
              NOV
                17...       1535     168       --       --     1050     13.0      5.3       --       --       --
              JAN
                05...       1000      76       --       --     1330     -5.0      2.0       --       --       --
              FEB
                16...       1300      57       --       --     1300     -1.0       .6       --       --       --
              MAR
                07...       1400     840       --       --      665     15.0      2.5       --       --       --
              APR
                04...       0925     209      8.5     1190     1140      4.5      4.0      430     72.0     61.0
              MAY
                09...       1620     243       --       --     1160     20.0     20.8       --       --       --
              JUN
                13...       1330      40       --       --     1170     26.5     23.5       --       --       --
              AUG
                09...       0935     404      7.7       --      961     23.5     24.0      350     68.0     44.0


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

              NOV
                17...        --       --       --       --       --       --       --       --       --       --
              JAN
                05...        --       --       --       --       --       --       --       --       --       --
              FEB
                16...        --       --       --       --       --       --       --       --       --       --
              MAR
                07...        --       --       --       --       --       --       --       --       --       --
              APR
                04...      18.0       2      98.0      32       242     53.0       .2      330      468      829
              MAY
                09...        --       --       --       --       --       --       --       --       --       --
              JUN
                13...        --       --       --       --       --       --       --       --       --       --
              AUG
                09...      17.0       2      91.0      35       307     26.0       .2      220      782      717


                          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)

              NOV
                17...        --       --       --       --       --       --       --       --       --       --
              JAN
                05...        --       --       --       --       --       --       --       --       --       --
              FEB
                16...        --       --       --       --       --       --       --       --       --       --
              MAR
                07...        --       --       --       --       --       --       --       --       --       --
              APR
                04...       778      2.0      50        1      70.0      250       .1      <1       2.0      450
              MAY
                09...        --       --       --       --       --       --       --       --       --       --
              JUN
                13...        --       --       --       --       --       --       --       --       --       --
              AUG
                09...       651      5.0      50        1      60.0      190       .1      <1      <1.0      410

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