WATER-QUALITY ASSESSMENT OF THE SOUTH PLATTE RIVER BASIN, COLORADO, NEBRASKA, AND WYOMING -- PHYSICAL, CHEMICAL, AND BIOLOGICAL DATA, FISCAL YEARS 1993-95

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                                      06765500        - SOUTH PLATTE RIVER AT NORTH PLATTE, NE.


                                   WATER-QUALITY DATA, CALENDAR YEAR JANUARY 1993 TO DECEMBER 1993

                                                                                                                    DIS-
                                                                                                                  CHARGE,
                                                                                                                   INST.
                                    LAT-           LONG-                                         HYDRO-  TEMPER-   CUBIC
                                     I-             I-      MEDIUM   SAMPLE                      LOGIC    ATURE     FEET
                DATE      TIME      TUDE           TUDE      CODE     TYPE     STATE   COUNTY    EVENT    WATER     PER
                                                                                                         (DEG C)   SECOND
                                                                                                         (00010)  (00061)

            APR
              20...       0930   41 07 08 N   100 45 45 W       9       9          31   111        9      3.5000   352.00
            MAY
              12...       1200   41 07 08 N   100 45 45 W       9       9          31   111        9      17.300   254.00
            JUN
              07...       1230   41 07 08 N   100 45 45 W       9       9          31   111        9      21.500   250.00
              30...       1500   41 07 08 N   100 45 45 W       9       9          31   111        9      23.900   224.00
            AUG
              09...       1430   41 07 08 N   100 45 45 W       9       9          31   111        7      27.800   331.00
              11...       1530   41 07 08 N   100 45 45 W       9       7          31   111        9      25.500   279.00
            SEP
              07...       1030   41 07 08 N   100 45 45 W       9       9          31   111        9      14.000   242.00
            OCT
              06...       1400   41 07 08 N   100 45 45 W       9       9          31   111        9      19.000   254.00
            NOV
              05...       1330   41 07 08 N   100 45 45 W       9       9          31   111        9      4.5000   210.00
            DEC
              03...       1130   41 07 08 N   100 45 45 W       9       9          31   111        9      3.4000   370.00



                                   WATER-QUALITY DATA, CALENDAR YEAR JANUARY 1993 TO DECEMBER 1993




                                            PH      ALKA-    NITRO-   NITRO-   NITRO-   NITRO-   NITRO-
                         SPE-              WATER   LINITY     GEN,     GEN,   GEN,AM-  GEN,AM-    GEN,             PHOS-
                         CIFIC             WHOLE   WAT DIS  AMMONIA  NITRITE  MONIA +  MONIA +  NO2+NO3   PHOS-   PHORUS
                         CON-    OXYGEN,   FIELD   TOT FET    DIS-     DIS-   ORGANIC  ORGANIC    DIS-   PHORUS     DIS-
                         DUCT-     DIS-   (STAND-   FIELD    SOLVED   SOLVED   DIS.     TOTAL    SOLVED   TOTAL    SOLVED
                DATE     ANCE     SOLVED    ARD    MG/L AS   (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L
                        (US/CM)   (MG/L)   UNITS)   CACO3    AS N)    AS N)    AS N)    AS N)    AS N)    AS P)    AS P)
                        (00095)  (00300)  (00400)  (00418)  (00608)  (00613)  (00623)  (00625)  (00631)  (00665)  (00666)

            APR
              20...      1480.0   12.200   8.5900   221.00  0.02000 <0.01000  0.30000  0.60000   2.2000  0.14000  0.09000
            MAY
              12...      1240.0   9.3000   8.2000   235.00  0.02000 <0.01000  0.30000  0.60000   1.6000  0.13000  0.07000
            JUN
              07...      1260.0   9.1000   8.7000   180.00  0.01000 <0.01000 <0.20000 <0.20000  0.43000  0.13000  0.13000
              30...      1200.0   8.6000   8.6000   186.00  0.02000 <0.01000  0.30000  0.30000  0.10000  0.02000 <0.01000
            AUG
              09...      1070.0   7.9000   8.5000   192.00  0.03000 <0.01000  0.30000  0.30000  0.77000  0.06000  0.05000
              11...      1210.0   8.2000   8.5000   179.00  0.03000 <0.01000  0.30000  0.30000  0.76000  0.09000  0.06000
            SEP
              07...      1030.0   10.200   8.3000   212.00  0.04000 <0.01000  0.20000  0.40000  0.97000  0.07000  0.06000
            OCT
              06...      1420.0   9.2000   8.4000   222.00  0.05000 <0.01000  0.20000  0.60000   1.4000  0.09000  0.07000
            NOV
              05...      1510.0   12.200   8.1000   210.00  0.03000 <0.01000 <0.20000  0.30000   2.0000  0.11000  0.08000
            DEC
              03...      1590.0   13.000   8.5000   233.00  0.25000  0.01000   2.1000  0.60000   2.8000  0.20000   1.0000



                                   WATER-QUALITY DATA, CALENDAR YEAR JANUARY 1993 TO DECEMBER 1993




                         PHOS-            CARBON,
                        PHORUS   CARBON,  ORGANIC            MAGNE-            POTAS-   CHLO-             FLUO-   SILICA,
                         ORTHO,  ORGANIC   SUS-    CALCIUM    SIUM,  SODIUM,    SIUM,   RIDE,   SULFATE   RIDE,    DIS-
                         DIS-     DIS-    PENDED    DIS-      DIS-    DIS-      DIS-    DIS-     DIS-      DIS-    SOLVED
                        SOLVED   SOLVED    TOTAL    SOLVED   SOLVED  SOLVED    SOLVED   SOLVED   SOLVED   SOLVED   (MG/L
                DATE    (MG/L     (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L     AS
                        AS P)     AS C)    AS C)    AS CA)   AS MG)   AS NA)   AS K)    AS CL)  AS SO4)   AS F)    SIO2)
                        (00671)  (00681)  (00689)  (00915)  (00925)  (00930)  (00935)  (00940)  (00945)  (00950)  (00955)

            APR
              20...     0.10000   3.5000   1.2000   140.00   41.000   120.00   12.000   65.000   420.00  0.60000   24.000
            MAY
              12...     0.08000   3.2000   1.7000   120.00   33.000   100.00   13.000   54.000   400.00  0.60000   29.000
            JUN
              07...     0.13000   4.0000     --     110.00   36.000   110.00   13.000   60.000   460.00  0.50000   25.000
              30...    <0.01000   3.6000   4.7000   100.00   33.000   110.00   15.000   52.000   390.00  0.50000   27.000
            AUG
              09...     0.04000   3.9000   2.2000   91.000   26.000   87.000   11.000   42.000   310.00  0.50000   29.000
              11...     0.06000   3.4000   2.5000   110.00   31.000   100.00   14.000   49.000   370.00  0.60000   30.000
            SEP
              07...     0.04000   2.7000  0.70000   100.00   25.000   84.000   11.000     --       --       --     32.000
            OCT
              06...     0.05000   4.8000   1.4000   130.00   42.000   120.00   16.000   63.000   470.00  0.70000   27.000
            NOV
              05...     0.08000   3.2000  0.40000   140.00   40.000   120.00   14.000   64.000   480.00  0.60000   31.000
            DEC
              03...     0.97000   4.9000   1.3000   150.00   45.000   130.00   15.000   66.000   520.00  0.60000   28.000



                                   WATER-QUALITY DATA, CALENDAR YEAR JANUARY 1993 TO DECEMBER 1993





                                  BERYL-            CHRO-                                        MANGA-   MOLYB-
                        BARIUM,   LIUM,   CADMIUM   MIUM,   COBALT,  COPPER,   IRON,    LEAD,    NESE,    DENUM,  NICKEL,
                         DIS-     DIS-      DIS-    DIS-     DIS-     DIS-      DIS-     DIS-     DIS-     DIS-    DIS-
                        SOLVED    SOLVED   SOLVED   SOLVED  SOLVED    SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED
                DATE     (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L
                         AS BA)   AS BE)   AS CD)   AS CR)   AS CO)   AS CU)   AS FE)   AS PB)   AS MN)   AS MO)   AS NI)
                        (01005)  (01010)  (01025)  (01030)  (01035)  (01040)  (01046)  (01049)  (01056)  (01060)  (01065)

            APR
              20...        --       --       --       --       --       --    <3.0000     --     5.0000     --       --
            MAY
              12...        --       --       --       --       --       --     4.0000     --     4.0000     --       --
            JUN
              07...        --       --       --       --       --       --     7.0000     --     3.0000     --       --
              30...        --       --       --       --       --       --    <3.0000     --     3.0000     --       --
            AUG
              09...        --       --       --       --       --       --    <3.0000     --     5.0000     --       --
              11...        --       --       --       --       --       --     4.0000     --     3.0000     --       --
            SEP
              07...      70.000  <1.0000  <1.0000  <1.0000  <1.0000   2.0000   5.0000  <1.0000   3.0000   4.0000  <1.0000
            OCT
              06...      73.000  <1.0000  <1.0000  <1.0000  <1.0000   5.0000  <3.0000  <1.0000   3.0000   5.0000   3.0000
            NOV
              05...      66.000  <1.0000  <1.0000   2.0000  <1.0000   5.0000   3.0000  <1.0000   2.0000   4.0000   4.0000
            DEC
              03...      66.000  <1.0000  <1.0000  <1.0000  <1.0000   12.000  <3.0000  <1.0000   4.0000   6.0000   7.0000



                                   WATER-QUALITY DATA, CALENDAR YEAR JANUARY 1993 TO DECEMBER 1993




                                                                              SOLIDS,                             QUALITY
                                           ANTI-    ALUM-    SELE-   URANIUM  RESIDUE                             ASSUR-
                        SILVER,   ZINC,    MONY,    INUM,    NIUM,   NATURAL  AT 180             SEDI-             ANCE
                          DIS-     DIS-     DIS-     DIS-     DIS-     DIS-    DEG. C            MENT,    REP-     DATA
                         SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED    DIS-   SAMPLE    SUS-    LICATE   INDICA-
                DATE     (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    SOLVED  PURPOSE   PENDED   TYPE     TOR
                         AS AG)   AS ZN)   AS SB)   AS AL)   AS SE)   AS U)    (MG/L)   CODE     (MG/L)  (CODE)    CODE
                        (01075)  (01090)  (01095)  (01106)  (01145)  (22703)  (70300)  (71999)  (80154)  (99105)  (99111)

            APR
              20...        --       --       --       --       --       --     990.00     --     40.000     --       --
            MAY
              12...        --       --       --       --       --       --     904.00     --     54.000     --       --
            JUN
              07...        --       --       --       --       --       --     908.00     --     43.000     --       --
              30...        --       --       --       --       --       --     830.00     --     61.000     --       --
            AUG
              09...        --       --       --       --       --       --     782.00     --     61.000     --     10.000
              11...        --       --       --       --       --       --     858.00   15.000   83.000   30.000   30.000
            SEP
              07...     <1.0000   2.0000  <1.0000   4.0000   2.0000   21.000     --       --     55.000     --       --
            OCT
              06...     <1.0000   5.0000  <1.0000   4.0000   2.0000   34.000   1060.0     --     22.000     --       --
            NOV
              05...     <1.0000   3.0000  <1.0000   3.0000   2.0000   38.000   1040.0     --     22.000     --       --
            DEC
              03...     <1.0000   9.0000  <1.0000   14.000   3.0000   41.000   1150.0     --     50.000     --       --



                                   WATER-QUALITY DATA, CALENDAR YEAR JANUARY 1994 TO DECEMBER 1994

                                                                                                                DIS-
                                                                                                              CHARGE,   SPE-
                                                                                                               INST.    CIFIC
                                LAT-           LONG-                                         HYDRO-  TEMPER-   CUBIC    CON-
                                 I-             I-      MEDIUM   SAMPLE                      LOGIC    ATURE     FEET    DUCT-
            DATE      TIME      TUDE           TUDE      CODE     TYPE     STATE   COUNTY    EVENT    WATER     PER     ANCE
                                                                                                     (DEG C)   SECOND  (US/CM)
                                                                                                     (00010)  (00061)  (00095)

           JAN
             12...    1430   41 07 08 N   100 45 45 W       9       9          31   111        9      3.5000   306.00   1560.0
           FEB
             11...    1500   41 07 08 N   100 45 45 W       9       9          31   111        A      3.3000   653.00   1790.0
             16...    1430   41 07 08 N   100 45 45 W       9       9          31   111        9      4.9000   348.00   1530.0
           MAR
             01...    1000   41 07 08 N   100 45 45 W       9       9          31   111        9     0.40000   383.00   1550.0
           APR
             06...    1000   41 07 08 N   100 45 45 W       9       9          31   111        9      3.0000   157.00   1340.0
           MAY
             03...    1030   41 07 08 N   100 45 45 W       9       9          31   111        9      10.000   193.00   1280.0
             11...    0740   41 07 08 N   100 45 45 W       9       9          31   111        9      14.900   228.00   1170.0
           JUN
             01...    1000   41 07 08 N   100 45 45 W       9       9          31   111        9      16.500   175.00   1130.0
           JUL
             12...    1130   41 07 08 N   100 45 45 W       9       9          31   111        9      21.500   201.00   1020.0
           AUG
             11...    1030   41 07 08 N   100 45 45 W       9       9          31   111        9      20.000   171.00   956.00
             30...    1130   41 07 08 N   100 45 45 W       9       9          31   111        9      21.000   157.00   935.00
           OCT
             12...    1100   41 07 08 N   100 45 45 W       9       9          31   111        9      11.500   151.00   1300.0
           NOV
             01...    1030   41 07 08 N   100 45 45 W       9       9          31   111        9      8.0000   144.00   1120.0
           DEC
             08...    1100   41 07 08 N   100 45 45 W       9       9          31   111        9      1.5000   173.00   1470.0



                                   WATER-QUALITY DATA, CALENDAR YEAR JANUARY 1994 TO DECEMBER 1994




                               PH      ALKA-    NITRO-   NITRO-   NITRO-   NITRO-   NITRO-                     PHOS-
                              WATER   LINITY     GEN,     GEN,   GEN,AM-  GEN,AM-    GEN,             PHOS-   PHORUS   CARBON,
                              WHOLE   WAT DIS  AMMONIA  NITRITE  MONIA +  MONIA +  NO2+NO3   PHOS-   PHORUS    ORTHO,  ORGANIC
                    OXYGEN,   FIELD   TOT FET    DIS-     DIS-   ORGANIC  ORGANIC    DIS-   PHORUS     DIS-    DIS-     DIS-
                      DIS-   (STAND-   FIELD    SOLVED   SOLVED   DIS.     TOTAL    SOLVED   TOTAL    SOLVED  SOLVED   SOLVED
            DATE     SOLVED    ARD    MG/L AS   (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L   (MG/L     (MG/L
                     (MG/L)   UNITS)   CACO3    AS N)    AS N)    AS N)    AS N)    AS N)    AS P)    AS P)   AS P)     AS C)
                    (00300)  (00400)  (00418)  (00608)  (00613)  (00623)  (00625)  (00631)  (00665)  (00666)  (00671)  (00681)

           JAN
             12...   12.400   8.5000   229.00  0.05000  0.01000  0.30000  0.50000   3.0000  0.15000  0.10000  0.12000   3.2000
           FEB
             11...   13.900   8.4000   235.00  0.05000  0.02000  0.30000  0.90000   3.7000  0.26000  0.15000  0.16000   4.2000
             16...   12.100   8.4000   216.00  0.04000  0.02000  0.40000  0.60000   3.2000  0.17000  0.12000  0.12000   4.0000
           MAR
             01...   12.900   9.1000   209.00  0.04000 <0.01000  0.40000  0.50000   3.0000  0.15000  0.11000  0.10000   3.6000
           APR
             06...   11.600   8.5000   215.00  0.05000  0.03000 <0.20000  0.50000   2.1000  0.08000  0.05000  0.04000   2.7000
           MAY
             03...   10.000   8.4000   193.00  0.02000 <0.01000 <0.20000  0.30000   1.4000  0.06000  0.04000  0.04000   3.1000
             11...   9.4000   8.3000     --    0.04000  0.02000  0.20000  0.50000   1.3000  0.12000  0.05000  0.03000     --
           JUN
             01...   10.000   8.5000   212.00  0.02000  0.02000 <0.20000  0.80000  0.50000  0.07000 <0.01000  0.01000   22.000
           JUL
             12...   7.4000   8.3000   200.00  0.02000  0.01000  0.30000  0.50000  0.80000  0.10000  0.06000  0.04000   4.0000
           AUG
             11...   8.0000   8.4000   180.00  0.02000 <0.01000  0.30000  0.30000  0.97000  0.07000  0.04000  0.02000   2.8000
             30...   8.8000   8.4000   198.00  0.03000  0.01000  0.20000  0.40000  0.85000  0.05000  0.02000  0.02000   4.2000
           OCT
             12...   10.100   8.4000   198.00 <0.01500 <0.01000  0.30000  0.70000  0.81000  0.06000  0.02000  0.01000   4.2000
           NOV
             01...   10.800   8.5000   195.00 <0.01500 <0.01000  0.20000  0.40000   1.3000  0.04000  0.03000  0.03000   2.8000
           DEC
             08...   13.900   8.4000   191.00  0.07000  0.02000  0.30000  0.50000   1.8000  0.08000  0.04000  0.04000   2.8000



                                   WATER-QUALITY DATA, CALENDAR YEAR JANUARY 1994 TO DECEMBER 1994




                    CARBON,
                    ORGANIC            MAGNE-            POTAS-   CHLO-             FLUO-   SILICA,            MANGA-   PROP-
                     SUS-    CALCIUM    SIUM,  SODIUM,    SIUM,   RIDE,   SULFATE   RIDE,    DIS-     IRON,    NESE,    CHLOR,
                    PENDED    DIS-      DIS-    DIS-      DIS-    DIS-     DIS-      DIS-    SOLVED    DIS-     DIS-    WATER,
                     TOTAL    SOLVED   SOLVED  SOLVED    SOLVED   SOLVED   SOLVED   SOLVED   (MG/L    SOLVED   SOLVED   DISS,
            DATE     (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L     AS      (UG/L    (UG/L    REC
                     AS C)    AS CA)   AS MG)   AS NA)   AS K)    AS CL)  AS SO4)   AS F)    SIO2)    AS FE)   AS MN)  (UG/L)
                    (00689)  (00915)  (00925)  (00930)  (00935)  (00940)  (00945)  (00950)  (00955)  (01046)  (01056)  (04024)

           JAN
             12...   1.4000   140.00   43.000   130.00   13.000   63.000   490.00  0.70000   29.000  <3.0000   2.0000     --
           FEB
             11...   3.0000   160.00   50.000   150.00   14.000   76.000   580.00  0.80000   26.000   6.0000   5.0000     --
             16...   1.2000   140.00   45.000   140.00   14.000   68.000   510.00  0.80000   27.000   4.0000   4.0000     --
           MAR
             01...   1.0000   140.00   43.000   130.00   13.000   67.000   510.00  0.70000   26.000   6.0000   3.0000     --
           APR
             06...  0.60000   120.00   33.000   100.00   13.000   55.000   400.00  0.60000   28.000   10.000   5.0000     --
           MAY
             03...  0.80000   120.00   32.000   100.00   14.000   52.000   390.00  0.60000   30.000  <3.0000   3.0000     --
             11...     --       --       --       --       --       --       --       --       --       --       --   <0.00700
           JUN
             01...   1.2000     --       --       --       --       --       --       --       --       --       --   <0.00700
           JUL
             12...  0.90000   92.000   24.000   85.000   14.000   36.000   270.00  0.50000   30.000   4.0000   5.0000     --
           AUG
             11...  0.80000   88.000   24.000   87.000   13.000   30.000   250.00  0.50000   32.000  <3.0000   2.0000     --
             30...  0.80000   86.000   24.000   91.000   13.000   33.000   250.00  0.50000   31.000   4.0000   4.0000 <0.00700
           OCT
             12...   1.7000   120.00   35.000   110.00   15.000   53.000   410.00  0.60000   34.000   3.0000   4.0000     --
           NOV
             01...  0.40000   120.00   31.000   100.00   14.000   46.000   340.00  0.60000   36.000  <3.0000   2.0000     --
           DEC
             08...  0.70000   130.00   35.000   110.00   15.000   55.000   410.00  0.50000   33.000  <3.0000   3.0000     --



                                   WATER-QUALITY DATA, CALENDAR YEAR JANUARY 1994 TO DECEMBER 1994




                                                        DEETHYL                                                          PRO-
                     BUTYL-   BRO-     SI-      PRO-     ATRA-    CYANA-                             DICAMBA   MCPA,    POXUR,
                     ATE,     MACIL,  MAZINE,   METON,   ZINE,    ZINE,   FONOFOS   ALPHA             WATER,   WATER,   WATER,
                     WATER,   WATER,   WATER,   WATER,   WATER,   WATER,   WATER     BHC     P,P'     FLTRD,   FLTRD,   FLTRD,
                     DISS,    DISS,    DISS,    DISS,    DISS,    DISS,    DISS      DIS-     DDE    GF 0.7U  GF 0.7U  GF 0.7U
            DATE     REC      REC      REC      REC      REC      REC       REC    SOLVED   DISSOLV    REC      REC      REC
                    (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)    (UG/L)   (UG/L)   (UG/L)
                    (04028)  (04029)  (04035)  (04037)  (04040)  (04041)  (04095)  (34253)  (34653)  (38442)  (38482)  (38538)

           JAN
             12...     --       --       --       --       --       --       --       --       --       --       --       --
           FEB
             11...     --       --       --       --       --       --       --       --       --       --       --       --
             16...     --       --       --       --       --       --       --       --       --       --       --       --
           MAR
             01...     --       --       --       --       --       --       --       --       --       --       --       --
           APR
             06...     --       --       --       --       --       --       --       --       --       --       --       --
           MAY
             03...     --       --       --       --       --       --       --       --       --       --       --       --
             11... <0.00200     --   <0.00500 E0.01100 E0.02500 <0.00400 <0.00300 <0.00200 <0.00600     --       --       --
           JUN
             01... <0.00200 <0.03500 <0.00500  0.21000 E0.30000  0.15000 <0.00300 <0.00200 <0.00600 <0.03500 <0.05000 <0.03500
           JUL
             12...     --       --       --       --       --       --       --       --       --       --       --       --
           AUG
             11...     --       --       --       --       --       --       --       --       --       --       --       --
             30... <0.00200 <0.03500 <0.00500 E0.01200 E0.04000 <0.00400 <0.00300 <0.00200 <0.00600 <0.03500 <0.05000 <0.03500
           OCT
             12...     --       --       --       --       --       --       --       --       --       --       --       --
           NOV
             01...     --       --       --       --       --       --       --       --       --       --       --       --
           DEC
             08...     --       --       --       --       --       --       --       --       --       --       --       --



                                   WATER-QUALITY DATA, CALENDAR YEAR JANUARY 1994 TO DECEMBER 1994




                     BENTA-            FLUO-
                      ZON,    2,4-DB  METURON                                                                  ATRA-
                     WATER,   WATER,   WATER,   CHLOR-             DI-     METO-    MALA-    PARA-     DI-     ZINE,
                     FLTRD,   FLTRD,   FLTRD,  PYRIFOS  LINDANE   ELDRIN  LACHLOR   THION,   THION,  AZINON,   WATER,   2,4-D,
                    GF 0.7U  GF 0.7U  GF 0.7U    DIS-    DIS-      DIS-    WATER     DIS-     DIS-     DIS-    DISS,     DIS-
            DATE      REC      REC      REC     SOLVED  SOLVED    SOLVED  DISSOLV   SOLVED   SOLVED   SOLVED   REC      SOLVED
                     (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)  (UG/L)    (UG/L)   (UG/L)   (UG/L)  (UG/L)    (UG/L)
                    (38711)  (38746)  (38811)  (38933)  (39341)  (39381)  (39415)  (39532)  (39542)  (39572)  (39632)  (39732)

           JAN
             12...     --       --       --       --       --       --       --       --       --       --       --       --
           FEB
             11...     --       --       --       --       --       --       --       --       --       --       --       --
             16...     --       --       --       --       --       --       --       --       --       --       --       --
           MAR
             01...     --       --       --       --       --       --       --       --       --       --       --       --
           APR
             06...     --       --       --       --       --       --       --       --       --       --       --       --
           MAY
             03...     --       --       --       --       --       --       --       --       --       --       --       --
             11...     --       --       --   <0.00400 <0.00400 <0.00100  0.02100 <0.00500 <0.00400 <0.00200  0.06000     --
           JUN
             01... <0.01400 <0.03500 <0.03500 <0.00400 <0.00400 <0.00100  0.11000 <0.00500 <0.00400 <0.00200   1.1000 <0.03500
           JUL
             12...     --       --       --       --       --       --       --       --       --       --       --       --
           AUG
             11...     --       --       --       --       --       --       --       --       --       --       --       --
             30... <0.01400 <0.03500 <0.03500 <0.00400 <0.00400 <0.00100 0.004000 <0.00500 <0.00400 <0.00200  0.07100 <0.03500
           OCT
             12...     --       --       --       --       --       --       --       --       --       --       --       --
           NOV
             01...     --       --       --       --       --       --       --       --       --       --       --       --
           DEC
             08...     --       --       --       --       --       --       --       --       --       --       --       --



                                   WATER-QUALITY DATA, CALENDAR YEAR JANUARY 1994 TO DECEMBER 1994




                                                 TRI-     PRO-     PIC-     ORY-   NORFLUR    NEB-     METH-    FEN-    ESFEN-
                                       ALA-    CLOPYR,   PHAM,    LORAM,   ZALIN,   AZON,    URON,    OMYL,    URON,    VAL-
                                       CHLOR,   WATER,   WATER,   WATER,   WATER,   WATER,   WATER,   WATER,   WATER,   ERATE,
                    2,4,5-T  SILVEX,   WATER,   FLTRD,   FLTRD,   FLTRD,   FLTRD,   FLTRD,   FLTRD,   FLTRD,   FLTRD,  WAT,FLT
                      DIS-     DIS-    DISS,   GF 0.7U  GF 0.7U  GF 0.7U  GF 0.7U  GF 0.7U  GF 0.7U  GF 0.7U  GF 0.7U  GF 0.7U
            DATE     SOLVED   SOLVED   REC,      REC      REC      REC      REC      REC      REC      REC      REC      REC
                     (UG/L)   (UG/L)  (UG/L)    (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)
                    (39742)  (39762)  (46342)  (49235)  (49236)  (49291)  (49292)  (49293)  (49294)  (49296)  (49297)  (49298)

           JAN
             12...     --       --       --       --       --       --       --       --       --       --       --       --
           FEB
             11...     --       --       --       --       --       --       --       --       --       --       --       --
             16...     --       --       --       --       --       --       --       --       --       --       --       --
           MAR
             01...     --       --       --       --       --       --       --       --       --       --       --       --
           APR
             06...     --       --       --       --       --       --       --       --       --       --       --       --
           MAY
             03...     --       --       --       --       --       --       --       --       --       --       --       --
             11...     --       --   <0.00200     --       --       --       --       --       --       --       --       --
           JUN
             01... <0.03500 <0.02100 <0.00200 <0.05000 <0.03500 <0.05000 <0.01900 <0.02400 <0.01500 <0.01700 <0.01300 <0.01900
           JUL
             12...     --       --       --       --       --       --       --       --       --       --       --       --
           AUG
             11...     --       --       --       --       --       --       --       --       --       --       --       --
             30... <0.03500 <0.02100 <0.00200 <0.05000 <0.03500 <0.05000 <0.01900 <0.02400 <0.01500 <0.01700 <0.01300 <0.01900
           OCT
             12...     --       --       --       --       --       --       --       --       --       --       --       --
           NOV
             01...     --       --       --       --       --       --       --       --       --       --       --       --
           DEC
             08...     --       --       --       --       --       --       --       --       --       --       --       --



                                   WATER-QUALITY DATA, CALENDAR YEAR JANUARY 1994 TO DECEMBER 1994




                                               DICHLOR  DICHLO-  CLOPYR-   CHLOR-  3HYDRXY    BRO-   ALDICA-   ACIFL-  SOLIDS,
                             DIURON,  DINOSEB   PROP,    BENIL,   ALID,    AMBEN,   CARBO-  MOXYNIL  RB SUL-  UORFEN   RESIDUE
                     DNOC     WATER,   WATER,   WATER,   WATER,   WATER,   WATER,   FURAN    WATER,  FOXIDE,   WATER,  AT 180
                    WAT,FLT   FLTRD,   FLTRD,   FLTRD,   FLTRD,   FLTRD,   FLTRD,  WAT,FLT   FLTRD,  WAT,FLT   FLTRD,   DEG. C
                    GF 0.7U  GF 0.7U  GF 0.7U  GF 0.7U  GF 0.7U  GF 0.7U  GF 0.7U  GF 0.7U  GF 0.7U  GF 0.7U  GF 0.7U    DIS-
            DATE      REC      REC      REC      REC      REC      REC      REC      REC      REC      REC      REC     SOLVED
                     (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (MG/L)
                    (49299)  (49300)  (49301)  (49302)  (49303)  (49305)  (49307)  (49308)  (49311)  (49314)  (49315)  (70300)

           JAN
             12...     --       --       --       --       --       --       --       --       --       --       --     1110.0
           FEB
             11...     --       --       --       --       --       --       --       --       --       --       --     1190.0
             16...     --       --       --       --       --       --       --       --       --       --       --     1160.0
           MAR
             01...     --       --       --       --       --       --       --       --       --       --       --     1140.0
           APR
             06...     --       --       --       --       --       --       --       --       --       --       --     964.00
           MAY
             03...     --       --       --       --       --       --       --       --       --       --       --     890.00
             11...     --       --       --       --       --       --       --       --       --       --       --       --
           JUN
             01... <0.03500 <0.02000 <0.03500 <0.03200 <0.02000 <0.05000 <0.01100 <0.01400 <0.03500 <0.02100 <0.03500     --
           JUL
             12...     --       --       --       --       --       --       --       --       --       --       --     694.00
           AUG
             11...     --       --       --       --       --       --       --       --       --       --       --     661.00
             30... <0.03500 <0.02000 <0.03500 <0.03200 <0.02000 <0.05000 <0.01100 <0.01400 <0.03500 <0.02100 <0.03500   679.00
           OCT
             12...     --       --       --       --       --       --       --       --       --       --       --     926.00
           NOV
             01...     --       --       --       --       --       --       --       --       --       --       --     840.00
           DEC
             08...     --       --       --       --       --       --       --       --       --       --       --     968.00



                                   WATER-QUALITY DATA, CALENDAR YEAR JANUARY 1994 TO DECEMBER 1994




                                          2,6-DI-    TRI-    ETHAL-             TER-     LIN-   METHYL              PEB-
                                  METRI-   ETHYL    FLUR-    FLUR-   PHORATE   BACIL    URON     PARA-    EPTC     ULATE
                         SEDI-    BUZIN   ANILINE   ALIN     ALIN     WATER    WATER    WATER    THION    WATER    WATER
                         MENT,   SENCOR   WAT FLT  WAT FLT  WAT FLT   FLTRD    FLTRD    FLTRD   WAT FLT   FLTRD    FILTRD
                         SUS-     WATER    0.7 U    0.7 U    0.7 U    0.7 U    0.7 U    0.7 U    0.7 U    0.7 U    0.7 U
                DATE     PENDED  DISSOLV  GF, REC  GF, REC  GF, REC  GF, REC  GF, REC  GF, REC  GF, REC  GF, REC  GF, REC
                         (MG/L)  (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)
                        (80154)  (82630)  (82660)  (82661)  (82663)  (82664)  (82665)  (82666)  (82667)  (82668)  (82669)

            JAN
              12...      56.000     --       --       --       --       --       --       --       --       --       --
            FEB
              11...      371.00     --       --       --       --       --       --       --       --       --       --
              16...      220.00     --       --       --       --       --       --       --       --       --       --
            MAR
              01...      149.00     --       --       --       --       --       --       --       --       --       --
            APR
              06...      114.00     --       --       --       --       --       --       --       --       --       --
            MAY
              03...      60.000     --       --       --       --       --       --       --       --       --       --
              11...        --   <0.00400 <0.00300 <0.00200 <0.00400 <0.00200 <0.00700 <0.00200 <0.00600 <0.00200 <0.00400
            JUN
              01...      30.000 <0.00400 <0.00300 <0.00200 <0.00400 <0.00200     --   <0.00200 <0.00600 <0.00200 <0.00400
            JUL
              12...      68.000     --       --       --       --       --       --       --       --       --       --
            AUG
              11...      74.000     --       --       --       --       --       --       --       --       --       --
              30...      38.000 <0.00400 <0.00300 <0.00200 <0.00400 <0.00200 <0.00700 <0.00200 <0.00600 <0.00200 <0.00400
            OCT
              12...      90.000     --       --       --       --       --       --       --       --       --       --
            NOV
              01...      75.000     --       --       --       --       --       --       --       --       --       --
            DEC
              08...      170.00     --       --       --       --       --       --       --       --       --       --



                                   WATER-QUALITY DATA, CALENDAR YEAR JANUARY 1994 TO DECEMBER 1994




                         TEBU-     MOL-    ETHO-     BEN-    CARBO-    TER-    PRON-    DISUL-   TRIAL-    PRO-     CAR-
                        THIURON   INATE    PROP     FLUR-    FURAN    BUFOS    AMIDE    FOTON    LATE     PANIL    BARYL
                         WATER    WATER    WATER    ALIN     WATER    WATER    WATER    WATER    WATER    WATER    WATER
                         FLTRD    FLTRD    FLTRD   WAT FLD   FLTRD    FLTRD    FLTRD    FLTRD    FLTRD    FLTRD    FLTRD
                         0.7 U    0.7 U    0.7 U    0.7 U    0.7 U    0.7 U    0.7 U    0.7 U    0.7 U    0.7 U    0.7 U
                DATE    GF, REC  GF, REC  GF, REC  GF, REC  GF, REC  GF, REC  GF, REC  GF, REC  GF, REC  GF, REC  GF, REC
                        (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)
                        (82670)  (82671)  (82672)  (82673)  (82674)  (82675)  (82676)  (82677)  (82678)  (82679)  (82680)

            JAN
              12...        --       --       --       --       --       --       --       --       --       --       --
            FEB
              11...        --       --       --       --       --       --       --       --       --       --       --
              16...        --       --       --       --       --       --       --       --       --       --       --
            MAR
              01...        --       --       --       --       --       --       --       --       --       --       --
            APR
              06...        --       --       --       --       --       --       --       --       --       --       --
            MAY
              03...        --       --       --       --       --       --       --       --       --       --       --
              11...    <0.01000 <0.00400 <0.00300 <0.00200 <0.00300 <0.01300 <0.00300 <0.01700 <0.00100 <0.00400 <0.00300
            JUN
              01...    <0.01000 <0.00400 <0.00300 <0.00200 <0.00300 <0.01300 <0.00300 <0.01700 <0.00100 <0.00400 <0.00300
            JUL
              12...        --       --       --       --       --       --       --       --       --       --       --
            AUG
              11...        --       --       --       --       --       --       --       --       --       --       --
              30...    <0.01000 <0.00400 <0.00300 <0.00200 <0.00300 <0.01300 <0.00300 <0.01700 <0.00100 <0.00400 <0.00300
            OCT
              12...        --       --       --       --       --       --       --       --       --       --       --
            NOV
              01...        --       --       --       --       --       --       --       --       --       --       --
            DEC
              08...        --       --       --       --       --       --       --       --       --       --       --



                                   WATER-QUALITY DATA, CALENDAR YEAR JANUARY 1994 TO DECEMBER 1994




                         THIO-             PENDI-  NAPROP-    PRO-   METHYL     PER-    DIAZ-   TERBUTH    HCH    QUALITY
                        BENCARB   DCPA     METH-    AMIDE   PARGITE   AZIN-   METHRIN   INON    YLAZINE   ALPHA   ASSUR-
                         WATER    WATER    ALIN     WATER    WATER    PHOS      CIS    D10 SRG  SURROGT  D6 SRG    ANCE
                         FLTRD    FLTRD   WAT FLT   FLTRD    FLTRD   WAT FLT  WAT FLT  WAT FLT  WAT FLT  WAT FLT   DATA
                         0.7 U    0.7 U    0.7 U    0.7 U    0.7 U    0.7 U    0.7 U    0.7 U    0.7 U    0.7 U   INDICA-
                DATE    GF, REC  GF, REC  GF, REC  GF, REC  GF, REC  GF, REC  GF, REC  GF, REC  GF, REC  GF, REC   TOR
                        (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)   PERCENT  PERCENT  PERCENT   CODE
                        (82681)  (82682)  (82683)  (82684)  (82685)  (82686)  (82687)  (91063)  (91064)  (91065)  (99111)

            JAN
              12...        --       --       --       --       --       --       --       --       --       --       --
            FEB
              11...        --       --       --       --       --       --       --       --       --       --     10.000
              16...        --       --       --       --       --       --       --       --       --       --       --
            MAR
              01...        --       --       --       --       --       --       --       --       --       --       --
            APR
              06...        --       --       --       --       --       --       --       --       --       --       --
            MAY
              03...        --       --       --       --       --       --       --       --       --       --       --
              11...    <0.00200 <0.00200 <0.00400 <0.00300 <0.01300 <0.00100 <0.00500   91.700   90.700   84.800     --
            JUN
              01...    <0.00200 <0.00200 <0.00400 <0.00300 <0.01300     --   <0.00500   100.00   109.00   96.700     --
            JUL
              12...        --       --       --       --       --       --       --       --       --       --       --
            AUG
              11...        --       --       --       --       --       --       --       --       --       --       --
              30...    <0.00200 <0.00200 <0.00400 <0.00300 <0.01300 <0.00100 <0.00500   137.00   113.00   95.300     --
            OCT
              12...        --       --       --       --       --       --       --       --       --       --       --
            NOV
              01...        --       --       --       --       --       --       --       --       --       --       --
            DEC
              08...        --       --       --       --       --       --       --       --       --       --       --



                                   WATER-QUALITY DATA, CALENDAR YEAR JANUARY 1995 TO DECEMBER 1995




                                         LAT-           LONG-                                         HYDRO-  TEMPER-
                                          I-             I-      MEDIUM   SAMPLE                      LOGIC    ATURE
                     DATE      TIME      TUDE           TUDE      CODE     TYPE     STATE   COUNTY    EVENT    WATER
                                                                                                              (DEG C)
                                                                                                              (00010)

                 JAN
                   20...       1030   41 07 08 N   100 45 45 W       9       9          31   111        9      2.0000
                 FEB
                   09...       1100   41 07 08 N   100 45 45 W       9       9          31   111        9      2.0000
                 MAR
                   02...       1430   41 07 08 N   100 45 45 W       9       9          31   111        9      1.5000
                 APR
                   11...       1130   41 07 08 N   100 45 45 W       9       9          31   111        9      2.0000
                 MAY
                   26...       1030   41 07 08 N   100 45 45 W       9       9          31   111        9      13.000
                 JUN
                   09...       1130   41 07 08 N   100 45 45 W       9       9          31   111        7      15.000
                   21...       1230   41 07 08 N   100 45 45 W       9       9          31   111        7      23.500
                 JUL
                   18...       1100   41 07 08 N   100 45 45 W       9       9          31   111               22.000
                 AUG
                   07...       1300   41 07 08 N   100 45 45 W       9       9          31   111        9      25.500
                   23...       1330   41 07 08 N   100 45 45 W       9       9          31   111        9        --
                 SEP
                   13...       1100   41 07 08 N   100 45 45 W       9       9          31   111        9      17.500



                                   WATER-QUALITY DATA, CALENDAR YEAR JANUARY 1995 TO DECEMBER 1995




                                   DIS-                       PH      ALKA-    NITRO-   NITRO-   NITRO-   NITRO-
                                 CHARGE,   SPE-              WATER   LINITY     GEN,     GEN,   GEN,AM-  GEN,AM-
                                  INST.    CIFIC             WHOLE   WAT DIS  AMMONIA  NITRITE  MONIA +  MONIA +
                                  CUBIC    CON-    OXYGEN,   FIELD   TOT FET    DIS-     DIS-   ORGANIC  ORGANIC
                                   FEET    DUCT-     DIS-   (STAND-   FIELD    SOLVED   SOLVED   DIS.     TOTAL
                         DATE      PER     ANCE     SOLVED    ARD    MG/L AS   (MG/L    (MG/L    (MG/L    (MG/L
                                  SECOND  (US/CM)   (MG/L)   UNITS)   CACO3    AS N)    AS N)    AS N)    AS N)
                                 (00061)  (00095)  (00300)  (00400)  (00418)  (00608)  (00613)  (00623)  (00625)

                     JAN
                       20...      205.00     --     11.200   8.5000   218.00  0.03000  0.01000  0.20000  0.60000
                     FEB
                       09...      239.00   1520.0   12.400   8.4000   348.00  0.03000  0.01000 <0.20000  0.40000
                     MAR
                       02...      195.00   1310.0   12.900   8.4000   327.00  0.04000  0.01000 <0.20000  0.30000
                     APR
                       11...      215.00   1390.0   13.100   8.5000   190.00 <0.01500 <0.01000 <0.20000  0.50000
                     MAY
                       26...      534.00   1110.0   8.2000   8.1000   156.00 <0.01500 <0.01000  0.40000  0.50000
                     JUN
                       09...      11900.   995.00   9.7000   8.1000   156.00  0.02000 <0.01000  0.60000   1.5000
                       21...      9750.0   910.00   7.2000   8.4000   152.00  0.02000 <0.01000  0.50000  0.70000
                     JUL
                       18...      3280.0   952.00   7.8300   8.3000   181.00  0.02000 <0.01000  0.30000  0.40000
                     AUG
                       07...      436.00   1120.0   10.400   8.6000   171.00  0.02000 <0.01000 <0.20000   1.2000
                       23...        --       --       --       --       --    0.03000 <0.01000  0.50000     --
                     SEP
                       13...      282.00   1100.0   10.800   8.0000   199.00 <0.01500 <0.01000 <0.20000  0.50000



                                   WATER-QUALITY DATA, CALENDAR YEAR JANUARY 1995 TO DECEMBER 1995




                                  NITRO-                     PHOS-            CARBON,
                                   GEN,             PHOS-   PHORUS   CARBON,  ORGANIC            MAGNE-
                                 NO2+NO3   PHOS-   PHORUS    ORTHO,  ORGANIC   SUS-    CALCIUM    SIUM,  SODIUM,
                                   DIS-   PHORUS     DIS-    DIS-     DIS-    PENDED    DIS-      DIS-    DIS-
                                  SOLVED   TOTAL    SOLVED  SOLVED   SOLVED    TOTAL    SOLVED   SOLVED  SOLVED
                         DATE     (MG/L    (MG/L    (MG/L   (MG/L     (MG/L    (MG/L    (MG/L    (MG/L    (MG/L
                                  AS N)    AS P)    AS P)   AS P)     AS C)    AS C)    AS CA)   AS MG)   AS NA)
                                 (00631)  (00665)  (00666)  (00671)  (00681)  (00689)  (00915)  (00925)  (00930)

                     JAN
                       20...      2.2000  0.12000  0.06000  0.06000   3.6000  0.70000   140.00   41.000   130.00
                     FEB
                       09...      2.1000  0.07000  0.06000  0.05000   3.1000   1.0000   130.00   38.000   120.00
                     MAR
                       02...      2.0000  0.07000  0.05000  0.06000   2.6000  0.80000   120.00   33.000   100.00
                     APR
                       11...      1.5000  0.05000 <0.01000  0.02000   2.7000   1.6000   120.00   35.000   110.00
                     MAY
                       26...      1.0000  0.06000  0.05000  0.06000   6.6000   2.1000   100.00   30.000   90.000
                     JUN
                       09...     0.27000  0.33000  0.19000  0.21000   10.000   2.3000   73.000   24.000   64.000
                       21...     0.17000  0.27000  0.21000  0.21000   8.0000   1.5000   75.000   25.000   71.000
                     JUL
                       18...      1.3000  0.18000  0.19000  0.19000   5.1000   2.9000   81.000   26.000   77.000
                     AUG
                       07...    <0.05000  0.15000 <0.01000 <0.01000   4.2000   3.0000   92.000   30.000   95.000
                       23...     0.35000     --    0.03000  0.04000     --       --       --       --       --
                     SEP
                       13...     0.57000  0.09000  0.03000  0.03000   3.1000  0.50000   93.000   28.000   95.000



                                   WATER-QUALITY DATA, CALENDAR YEAR JANUARY 1995 TO DECEMBER 1995




                                                                                                SOLIDS,
                                  POTAS-   CHLO-             FLUO-   SILICA,            MANGA-  RESIDUE
                                   SIUM,   RIDE,   SULFATE   RIDE,    DIS-     IRON,    NESE,   AT 180    SEDI-
                                   DIS-    DIS-     DIS-      DIS-    SOLVED    DIS-     DIS-    DEG. C   MENT,
                                  SOLVED   SOLVED   SOLVED   SOLVED   (MG/L    SOLVED   SOLVED    DIS-    SUS-
                         DATE     (MG/L    (MG/L    (MG/L    (MG/L     AS      (UG/L    (UG/L    SOLVED   PENDED
                                  AS K)    AS CL)  AS SO4)   AS F)    SIO2)    AS FE)   AS MN)   (MG/L)   (MG/L)
                                 (00935)  (00940)  (00945)  (00950)  (00955)  (01046)  (01056)  (70300)  (80154)

                     JAN
                       20...      14.000   63.000   460.00  0.60000   31.000  <60.000  <20.000   1140.0   119.00
                     FEB
                       09...      14.000   60.000   460.00  0.60000   32.000  <3.0000   3.0000   1060.0   70.000
                     MAR
                       02...      15.000   51.000   380.00  0.60000   33.000  <3.0000   3.0000   934.00   112.00
                     APR
                       11...      13.000   57.000   430.00  0.60000   30.000  <3.0000   6.0000   988.00   67.000
                     MAY
                       26...      12.000   47.000   320.00  0.70000   22.000   16.000   8.0000   768.00   130.00
                     JUN
                       09...      11.000   43.000   280.00  0.70000   23.000   22.000   16.000   708.00   70.000
                       21...      8.0000   37.000   240.00  0.80000   10.000   14.000   14.000   607.00   169.00
                     JUL
                       18...      8.0000   39.000   270.00  0.70000   18.000  <3.0000   7.0000   660.00   109.00
                     AUG
                       07...      12.000   47.000   330.00  0.60000   23.000   6.0000   6.0000   716.00   65.000
                       23...        --       --       --       --       --       --       --       --       --
                     SEP
                       13...      12.000   43.000   310.00  0.60000   24.000  <3.0000   9.0000   758.00   25.000