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STATISTICS FOR PORTUGAL

STATISTICS FOR PORTUGAL


GEMS/WATER - STATISTICAL SUMMARY BY STATION     2002-01-24   PAGE 725

 STATION - RIVER TEJO AT SANTAREM                   STATION NO. 073001
 COUNTRY - PORTUGAL                                 DEPTH(M)       3.5
 LOCATION - OCT. 0  LAT. 39/13/35  LONG. 008/40/34  ELEVATION(M)   5.6
 REGIONAL CENTRE - EURA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1991-01-01 TO 1993-12-31
 PERIOD OF RECORD FROM  - 1991-01-08 TO 1993-12-20

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP      TRANS         CN   CHLORO A
                             COND                                            
                            02040      02061      02076      06606      06711
                            us/cm      deg C          m    mg/L Cn       mg/L


 NO. OF L-FLAGGED VALUES        0          0          0         14          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       14         29          1          1         16
 MEAN                        321.       16.3        4.5      0.005     0.0090
 MINIMUM                     170.        9.5                 0.005     0.0018
 DATE OF MINIMUM       1992-01-14 1993-01-05            1991-02-05 1991-02-05
 10TH PERCENTILE             186.        9.9                 0.005     0.0020
 MEDIAN                      300.       16.0                 0.005     0.0068
 90TH PERCENTILE             460.       22.0                 0.005     0.0162
 MAXIMUM                     550.       24.2                 0.005     0.0365
 DATE OF MAXIMUM       1992-06-16 1992-07-28            1992-11-24 1991-05-07
 STANDARD DEVIATION          110.        4.6                 0.000     0.0088




                           N KJEL      NO2-N      NO3-N        NH3         O2
                                                                         DISS
                            07001      07207      07306      07554      08101
                           mg/L N     mg/L N     mg/L N     mg/L N    mg/L O2


 NO. OF L-FLAGGED VALUES        1          2          0          7          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       17         13         15          7         26
 MEAN                         1.0       0.03       0.88       0.03        7.4
 MINIMUM                      0.0       0.01       0.52       0.00        4.1
 DATE OF MINIMUM       1991-10-01 1991-10-01 1992-10-20 1992-01-14 1992-04-07
 10TH PERCENTILE              0.1       0.01       0.53       0.00        5.1
 MEDIAN                       0.9       0.01       0.83       0.04        7.4
 90TH PERCENTILE              1.8       0.07       1.31       0.05        9.4
 MAXIMUM                      2.8       0.16       1.64       0.09       12.0
 DATE OF MAXIMUM       1992-11-24 1992-06-16 1991-02-05 1991-01-08 1992-01-14
 STANDARD DEVIATION           0.7       0.04       0.32       0.03        1.8




                               O2        BOD        COD          F        ALK
                             DISS                             DISS      TOTAL
                            08102      08201      08301      09105      10101
                          mg/L O2    mg/L O2    mg/L O2     mg/L F       mg/L


 NO. OF L-FLAGGED VALUES        0          0          8          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       14         25          6         17         17
 MEAN                         7.4         2.        18.        0.1     142.46
 MINIMUM                      4.1         1.        10.        0.1      10.00
 DATE OF MINIMUM       1992-04-07 1991-02-05 1991-01-10 1992-02-04 1991-06-18
 10TH PERCENTILE              4.5         1.        10.        0.1      17.00
 MEDIAN                       7.6         2.        10.        0.1      90.00
 90TH PERCENTILE              9.4         3.        30.        0.2     283.74
 MAXIMUM                     12.0         5.        80.        0.2     400.00
 DATE OF MAXIMUM       1992-01-14 1993-04-20 1992-03-17 1992-07-28 1992-06-16
 STANDARD DEVIATION           2.2         1.        20.        0.0     123.78



                               pH         pH   SUSP SOL         Na         Mg
                                                105 DEG       DISS       DISS
                            10301      10302      10401      11102      12102
                         pH UNITS   pH UNITS       mg/L    mg/L Na    mg/L Mg


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       11         18         13         16          9
 MEAN                         7.7        7.4        12.        32.        12.
 MINIMUM                      7.4        6.8         2.        13.         7.
 DATE OF MINIMUM       1993-06-01 1992-08-18 1991-01-08 1991-06-18 1992-01-14
 10TH PERCENTILE              7.4        6.9         3.        13.           
 MEDIAN                       7.7        7.4        10.        31.        11.
 90TH PERCENTILE              8.0        7.7        22.        52.           
 MAXIMUM                      8.4        8.0        26.        59.        21.
 DATE OF MAXIMUM       1993-10-12 1992-09-22 1992-01-14 1992-10-20 1992-09-22
 STANDARD DEVIATION           0.3        0.3         7.        16.         4.




                               Si    P ORTHO          P   SULPHATE         Cl
                         REACTIVE      TOTAL      TOTAL                  DISS
                            14101      15205      15405      16302      17204
                         mg/LSiO2     mg/L P     mg/L P   mg/L SO4    mg/L Cl


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       18         13         18         18         13
 MEAN                        4.12      0.162      0.256        78.        37.
 MINIMUM                     1.69      0.056      0.090        14.        21.
 DATE OF MINIMUM       1992-03-17 1991-06-18 1991-06-18 1992-02-04 1991-06-18
 10TH PERCENTILE             1.87      0.071      0.138        36.        23.
 MEDIAN                      3.97      0.150      0.260        72.        32.
 90TH PERCENTILE             5.88      0.251      0.400       107.        54.
 MAXIMUM                     6.86      0.280      0.420       155.        70.
 DATE OF MAXIMUM       1991-02-05 1991-11-05 1992-07-28 1992-10-20 1992-06-16
 STANDARD DEVIATION          1.60      0.062      0.093        33.        13.




                           ALDRIN   DIELDRIN          K         Ca         Cr
                                                   DISS       DISS      TOTAL
                            18130      18150      19102      20103      24002
                             ug/L       ug/L     mg/L K    mg/L Ca    mg/L Cr


 NO. OF L-FLAGGED VALUES        2          2          0          0         11
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          0         16         18          1
 MEAN                       0.003      0.002        3.7     37.506      0.008
 MINIMUM                                            0.4     21.600      0.005
 DATE OF MINIMUM                             1991-05-07 1991-06-18 1991-02-05
 10TH PERCENTILE                                    1.0     23.200      0.005
 MEDIAN                                             4.0     33.650      0.005
 90TH PERCENTILE                                    5.4     51.170      0.006
 MAXIMUM                                            5.5     55.600      0.040
 DATE OF MAXIMUM                             1992-10-20 1991-05-07 1992-03-17
 STANDARD DEVIATION                                 1.5     10.862      0.010




                               Mn         Fe         Fe         Cu         Zn
                            TOTAL      TOTAL       DISS      TOTAL      TOTAL
                            25004      26004      26104      29006      30004
                          mg/L Mn    mg/L Fe    mg/L Fe    mg/L Cu    mg/L Zn


 NO. OF L-FLAGGED VALUES        6          0          2         14          7
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       11          8         10          2         10
 MEAN                        0.07       0.16       0.10      0.013      0.029
 MINIMUM                     0.00       0.01       0.00      0.005      0.010
 DATE OF MINIMUM       1991-05-07 1992-11-24 1991-09-03 1991-02-05 1991-07-02
 10TH PERCENTILE             0.00                  0.01      0.005      0.012
 MEDIAN                      0.03       0.09       0.08      0.005      0.020
 90TH PERCENTILE             0.19                  0.25      0.030      0.066
 MAXIMUM                     0.23       0.64       0.30      0.030      0.080
 DATE OF MAXIMUM       1992-07-28 1992-09-22 1991-06-18 1992-11-24 1992-02-04
 STANDARD DEVIATION          0.09       0.21       0.11      0.012      0.022




                               As   COLIFORM   COLIFORM   FAEC COL   FAEC COL
                            TOTAL      TOTAL      TOTAL                      
                            33003      36001      36002      36011      36012
                          mg/L As   No/100ml   No/100ml   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        8          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       10         18         14         18         14
 MEAN                       0.026    5.3E+04      9263.    3.5E+04      1258.
 MINIMUM                    0.015    8.0E+00       680.    0.0E+00       130.
 DATE OF MINIMUM       1991-01-08 1993-10-12 1992-03-17 1993-10-12 1991-09-03
 10TH PERCENTILE            0.015    5.5E+02       768.    1.0E+02       246.
 MEDIAN                     0.017    7.8E+03      7750.    6.8E+02       650.
 90TH PERCENTILE            0.044    2.6E+04     14500.    4.3E+03      2400.
 MAXIMUM                    0.048    8.0E+05     40000.    6.0E+05      6300.
 DATE OF MAXIMUM       1992-10-20 1993-09-14 1991-10-01 1993-09-14 1991-01-08
 STANDARD DEVIATION         0.013    1.9E+05     10066.    1.4E+05      1662.




                             FAEC         Cd         Ba         Ba         Pb
                            STREP      TOTAL      TOTAL      TOTAL      TOTAL
                            36101      48001      80011      80016      82001
                         No/100ml    mg/L Cd    ug/L Hg    ug/L Hg    mg/L Pb


 NO. OF L-FLAGGED VALUES        0         12          0          6         12
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       15          1          2         12          0
 MEAN                        318.      0.005      0.065      0.139      0.030
 MINIMUM                       0.      0.005                 0.050      0.030
 DATE OF MINIMUM       1991-09-03 1991-01-10            1991-01-08 1991-02-05
 10TH PERCENTILE               0.      0.005                 0.050      0.030
 MEDIAN                      200.      0.005                 0.050      0.030
 90TH PERCENTILE             505.      0.005                 0.276      0.030
 MAXIMUM                    2000.      0.005                 0.710      0.030
 DATE OF MAXIMUM       1993-09-14 1992-06-16            1991-05-07 1992-06-16
 STANDARD DEVIATION          501.      0.000                 0.175      0.000




                             INST
                           DISCHG
                            97160
                             m3/S


 NO. OF L-FLAGGED VALUES        0
 NO. OF G-FLAGGED VALUES        0
 NO. OF UNFLAGGED VALUES        8
 MEAN                       208.2
 MINIMUM                    138.0
 DATE OF MINIMUM       1991-01-10
 10TH PERCENTILE                 
 MEDIAN                     209.0
 90TH PERCENTILE                 
 MAXIMUM                    270.0
 DATE OF MAXIMUM       1991-05-07
 STANDARD DEVIATION          45.6





 STATION - CASTELO DE BODE RESERVOIR                STATION NO. 073002
 COUNTRY - PORTUGAL                                 DEPTH(M)      60.0
 LOCATION - OCT. 0  LAT. 39/32/30  LONG. 008/19/00  ELEVATION(M) 100.0
 REGIONAL CENTRE - EURA                             WATER TYPE   LAKE       

 PERIOD REQUESTED FROM  - 1991-01-01 TO 1993-12-31
 PERIOD OF RECORD FROM  - 1991-01-29 TO 1992-12-15

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP      TRANS         CN   CHLORO A
                             COND                                            
                            02040      02061      02076      06606      06711
                            us/cm      deg C          m    mg/L Cn       mg/L


 NO. OF L-FLAGGED VALUES        0          0          0         34          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       82         82         40          1         72
 MEAN                         60.       15.3        4.7      0.005     0.0015
 MINIMUM                      40.       10.0        3.5      0.005     0.0001
 DATE OF MINIMUM       1992-02-25 1991-02-26 1991-01-29 1991-02-26 1992-11-17
 10TH PERCENTILE              50.       11.0        3.5      0.005     0.0005
 MEDIAN                       60.       14.0        4.5      0.005     0.0012
 90TH PERCENTILE              70.       21.9        6.0      0.005     0.0029
 MAXIMUM                      80.       30.0        6.5      0.005     0.0066
 DATE OF MAXIMUM       1991-09-17 1991-08-20 1991-04-09 1992-11-17 1992-03-24
 STANDARD DEVIATION            9.        4.5        1.0      0.000     0.0012




                           N KJEL      NO2-N      NO3-N        NH3         O2
                                                                         DISS
                            07001      07207      07306      07554      08101
                           mg/L N     mg/L N     mg/L N     mg/L N    mg/L O2


 NO. OF L-FLAGGED VALUES       32         44          0         57          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       35         28         72         15         15
 MEAN                         0.2       0.01       0.59       0.03        7.7
 MINIMUM                      0.0       0.00       0.20       0.00        5.0
 DATE OF MINIMUM       1991-01-29 1991-01-29 1992-09-08 1992-01-28 1991-08-20
 10TH PERCENTILE              0.0       0.00       0.31       0.00        5.4
 MEDIAN                       0.1       0.01       0.54       0.04        8.0
 90TH PERCENTILE              0.5       0.01       0.93       0.05        8.8
 MAXIMUM                      0.7       0.03       1.15       0.18       10.5
 DATE OF MAXIMUM       1992-10-27 1992-10-27 1991-11-12 1991-05-21 1991-04-09
 STANDARD DEVIATION           0.2       0.00       0.23       0.03        1.4




                               O2        BOD        COD          F        ALK
                             DISS                             DISS      TOTAL
                            08102      08201      08301      09105      10101
                          mg/L O2    mg/L O2    mg/L O2     mg/L F       mg/L


 NO. OF L-FLAGGED VALUES        0          2          0          7          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       60         75         17         60         72
 MEAN                         7.7         1.        10.        0.1      32.23
 MINIMUM                      4.9         0.        10.        0.1      10.00
 DATE OF MINIMUM       1991-08-20 1991-01-29 1991-01-29 1991-02-26 1991-04-09
 10TH PERCENTILE              5.9         0.        10.        0.1      20.00
 MEDIAN                       7.8         1.        10.        0.1      30.00
 90TH PERCENTILE              9.6         2.        10.        0.1      47.00
 MAXIMUM                     10.7         4.        10.        0.1     100.00
 DATE OF MAXIMUM       1991-04-09 1991-01-29 1992-12-15 1991-01-29 1991-02-26
 STANDARD DEVIATION           1.4         1.         0.        0.0      17.61



                               pH   SUSP SOL         Na         Mg         Si
                                     105 DEG       DISS       DISS   REACTIVE
                            10302      10401      11102      12102      14101
                         pH UNITS       mg/L    mg/L Na    mg/L Mg   mg/LSiO2


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       82         72         57         72         68
 MEAN                         7.3         2.         6.         3.       5.60
 MINIMUM                      6.4         0.         1.         2.       1.54
 DATE OF MINIMUM       1991-01-29 1991-04-09 1991-05-21 1991-11-12 1992-09-08
 10TH PERCENTILE              6.8         1.         3.         2.       2.93
 MEDIAN                       7.3         2.         6.         2.       6.22
 90TH PERCENTILE              8.1         4.         7.         3.       7.10
 MAXIMUM                      8.6        14.         8.         5.       7.56
 DATE OF MAXIMUM       1992-09-08 1991-03-19 1991-08-20 1991-04-09 1991-02-26
 STANDARD DEVIATION           0.5         2.         1.         1.       1.65




                          P ORTHO          P   SULPHATE         Cl     ALDRIN
                            TOTAL      TOTAL                  DISS           
                            15205      15405      16302      17204      18130
                           mg/L P     mg/L P   mg/L SO4    mg/L Cl       ug/L


 NO. OF L-FLAGGED VALUES       62         61          5          0         14
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       10         11         67         72          0
 MEAN                       0.006      0.008        10.        12.      0.003
 MINIMUM                    0.004      0.005         5.         6.      0.003
 DATE OF MINIMUM       1992-01-28 1991-01-29 1991-02-26 1991-10-15 1992-02-25
 10TH PERCENTILE            0.004      0.005         7.         7.      0.003
 MEDIAN                     0.004      0.005         9.        11.      0.003
 90TH PERCENTILE            0.008      0.017        14.        14.      0.003
 MAXIMUM                    0.026      0.100        24.        21.      0.003
 DATE OF MAXIMUM       1991-11-12 1992-09-08 1992-12-15 1991-04-09 1992-11-17
 STANDARD DEVIATION         0.004      0.012         4.         3.      0.000




                         DIELDRIN          K         Ca         Cr         Mn
                                        DISS       DISS      TOTAL      TOTAL
                            18150      19102      20103      24002      25004
                             ug/L     mg/L K    mg/L Ca    mg/L Cr    mg/L Mn


 NO. OF L-FLAGGED VALUES       15          0          0         43         47
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0         57         72          0          4
 MEAN                       0.002        1.1      4.545      0.005       0.01
 MINIMUM                    0.002        0.5      2.400      0.005       0.00
 DATE OF MINIMUM       1992-02-25 1992-11-17 1992-01-28 1991-04-09 1991-04-09
 10TH PERCENTILE            0.002        0.8      3.100      0.005       0.00
 MEDIAN                     0.002        1.1      3.840      0.005       0.00
 90TH PERCENTILE            0.002        1.4      5.300      0.005       0.01
 MAXIMUM                    0.002        3.8     12.700      0.005       0.17
 DATE OF MAXIMUM       1992-11-17 1992-03-24 1991-01-29 1992-04-28 1992-09-08
 STANDARD DEVIATION         0.000        0.4      2.177      0.000       0.03



                               Fe         Fe         Cu         Zn         As
                            TOTAL       DISS      TOTAL      TOTAL      TOTAL
                            26004      26104      29006      30004      33003
                          mg/L Fe    mg/L Fe    mg/L Cu    mg/L Zn    mg/L As


 NO. OF L-FLAGGED VALUES        4          8         57         23         47
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       43         19          3         33         21
 MEAN                        0.08       0.03      0.012      0.022      0.017
 MINIMUM                     0.01       0.00      0.005      0.002      0.015
 DATE OF MINIMUM       1991-05-21 1991-06-25 1991-04-09 1991-06-25 1991-01-29
 10TH PERCENTILE             0.01       0.00      0.005      0.010      0.015
 MEDIAN                      0.04       0.02      0.005      0.020      0.015
 90TH PERCENTILE             0.20       0.07      0.030      0.040      0.022
 MAXIMUM                     0.82       0.09      0.030      0.070      0.051
 DATE OF MAXIMUM       1992-01-28 1992-11-17 1992-12-15 1991-05-21 1992-10-27
 STANDARD DEVIATION          0.14       0.03      0.011      0.015      0.007




                         COLIFORM   COLIFORM   FAEC COL   FAEC COL       FAEC
                            TOTAL      TOTAL                            STREP
                            36001      36002      36011      36012      36101
                         No/100ml   No/100ml   No/100ml   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       17         68         17         68         16
 MEAN                         25.        27.         7.         8.        24.
 MINIMUM                       0.         0.         0.         0.         0.
 DATE OF MINIMUM       1991-02-26 1991-06-25 1991-02-26 1991-02-26 1991-03-19
 10TH PERCENTILE               0.         2.         0.         0.         0.
 MEDIAN                       15.        11.         0.         1.         1.
 90TH PERCENTILE              34.        32.         2.        13.        89.
 MAXIMUM                     200.       380.       100.       180.       150.
 DATE OF MAXIMUM       1992-11-17 1992-11-17 1992-11-17 1992-11-17 1992-11-17
 STANDARD DEVIATION           47.        68.        24.        30.        46.




                               Cd         Ba         Ba         Pb       INST
                            TOTAL      TOTAL      TOTAL      TOTAL     DISCHG
                            48001      80011      80016      82001      97160
                          mg/L Cd    ug/L Hg    ug/L Hg    mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES       44          0         19         44          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        9         10         14          0         11
 MEAN                       0.005      0.131      0.086      0.030       73.2
 MINIMUM                    0.005      0.050      0.050      0.030        0.0
 DATE OF MINIMUM       1991-03-19 1991-02-26 1991-02-26 1991-04-09 1992-03-24
 10TH PERCENTILE            0.005      0.050      0.050      0.030        3.8
 MEDIAN                     0.005      0.070      0.050      0.030       58.0
 90TH PERCENTILE            0.005      0.300      0.164      0.030      119.7
 MAXIMUM                    0.005      0.320      0.450      0.030      196.0
 DATE OF MAXIMUM       1992-12-15 1991-04-09 1992-04-28 1992-04-28 1991-03-19
 STANDARD DEVIATION         0.000      0.107      0.078      0.000       51.9





 STATION - VALENCA-MINHO RIVER                      STATION NO. 073003
 COUNTRY - PORTUGAL                                 DEPTH(M)       0.0
 LOCATION - OCT. 2  LAT. 41/54/00  LONG. 008/48/00  ELEVATION(M)   0.0
 REGIONAL CENTRE - EURA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1991-01-01 TO 1993-12-31
 PERIOD OF RECORD FROM  - 1991-01-07 TO 1993-11-03

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP         O2        BOD        COD
                             COND                  DISS                      
                            02040      02061      08101      08201      08301
                            us/cm      deg C    mg/L O2    mg/L O2    mg/L O2


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       34         34         34         34         32
 MEAN                         80.       13.3        9.2         2.         7.
 MINIMUM                      45.        5.5        5.8         0.         3.
 DATE OF MINIMUM       1991-03-05 1992-02-04 1993-07-06 1993-06-02 1992-11-03
 10TH PERCENTILE              62.        7.4        7.4         1.         4.
 MEDIAN                       79.       13.0        9.1         1.         7.
 90TH PERCENTILE              98.       19.3       10.8         2.        10.
 MAXIMUM                     110.       23.0       12.2         3.        20.
 DATE OF MAXIMUM       1993-06-02 1991-08-06 1992-01-28 1991-04-02 1992-04-07
 STANDARD DEVIATION           15.        4.4        1.4         1.         4.




                               pH         pH   COLIFORM   FAEC COL       FAEC
                                                  TOTAL                 STREP
                            10301      10302      36001      36011      36101
                         pH UNITS   pH UNITS   No/100ml   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          1          0          0
 NO. OF UNFLAGGED VALUES       11         23         31         33         27
 MEAN                         6.8        7.1    9.2E+04      5279.      2200.
 MINIMUM                      6.0        6.2    7.6E+02       150.        20.
 DATE OF MINIMUM       1993-10-11 1991-06-04 1991-03-05 1992-10-13 1993-01-05
 10TH PERCENTILE              6.0        6.7    1.7E+03       269.        20.
 MEDIAN                       7.0        7.1    1.7E+04       950.      1000.
 90TH PERCENTILE              7.1        7.5    1.5E+05     12400.      6390.
 MAXIMUM                      7.2        7.8    1.0E+06     64000.      9700.
 DATE OF MAXIMUM       1993-02-03 1992-01-28 1991-06-04 1991-06-04 1992-06-02
 STANDARD DEVIATION           0.4        0.4    2.1E+05     11389.      2993.





 STATION - FOZ DO MOURO-MINHO RIVER                 STATION NO. 073004
 COUNTRY - PORTUGAL                                 DEPTH(M)       0.0
 LOCATION - OCT. 2  LAT. 42/06/00  LONG. 008/19/48  ELEVATION(M)   0.0
 REGIONAL CENTRE - EURA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1991-01-01 TO 1993-12-31
 PERIOD OF RECORD FROM  - 1991-01-07 TO 1993-11-03

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP         O2        BOD        COD
                             COND                  DISS                      
                            02040      02061      08101      08201      08301
                            us/cm      deg C    mg/L O2    mg/L O2    mg/L O2


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       34         34         33         34         32
 MEAN                         65.       13.3       10.0         2.         5.
 MINIMUM                      33.        6.5        7.2         0.         2.
 DATE OF MINIMUM       1991-12-04 1992-01-28 1991-07-02 1991-07-02 1992-05-06
 10TH PERCENTILE              39.        7.4        8.1         1.         3.
 MEDIAN                       64.       13.2       10.0         1.         6.
 90TH PERCENTILE              82.       18.6       11.6         2.         8.
 MAXIMUM                     117.       23.5       12.8         9.         9.
 DATE OF MAXIMUM       1992-09-21 1991-08-06 1993-03-02 1993-08-03 1993-08-03
 STANDARD DEVIATION           18.        4.4        1.3         2.         2.




                               pH         pH   COLIFORM   FAEC COL       FAEC
                                                  TOTAL                 STREP
                            10301      10302      36001      36011      36101
                         pH UNITS   pH UNITS   No/100ml   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       11         23         28         31         25
 MEAN                         7.0        7.1      6576.       553.       695.
 MINIMUM                      6.4        6.4        63.        13.         0.
 DATE OF MINIMUM       1993-06-02 1991-06-04 1993-02-03 1992-11-13 1993-02-03
 10TH PERCENTILE              6.4        6.8       100.        20.         0.
 MEDIAN                       7.1        7.1      2050.        91.        77.
 90TH PERCENTILE              7.2        7.5     11600.       518.      2600.
 MAXIMUM                      7.4        7.7     65000.      8600.      3900.
 DATE OF MAXIMUM       1993-02-03 1992-01-28 1991-11-06 1993-07-06 1993-09-13
 STANDARD DEVIATION           0.3        0.3     13546.      1665.      1160.




                             INST
                           DISCHG
                            97160
                             m3/S


 NO. OF L-FLAGGED VALUES        0
 NO. OF G-FLAGGED VALUES        0
 NO. OF UNFLAGGED VALUES        7
 MEAN                       186.7
 MINIMUM                    112.0
 DATE OF MINIMUM       1992-06-02
 10TH PERCENTILE                 
 MEDIAN                     160.0
 90TH PERCENTILE                 
 MAXIMUM                    296.0
 DATE OF MAXIMUM       1992-04-07
 STANDARD DEVIATION          73.9





 STATION - ALBUFEIRA DO CRESTUHA-DOURO              STATION NO. 073005
 COUNTRY - PORTUGAL                                 DEPTH(M)       0.0
 LOCATION - OCT. 2  LAT. 41/04/12  LONG. 008/25/48  ELEVATION(M)   0.0
 REGIONAL CENTRE - EURA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1991-01-01 TO 1993-12-31
 PERIOD OF RECORD FROM  - 1991-01-09 TO 1993-12-15

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP         O2        BOD        COD
                             COND                  DISS                      
                            02040      02061      08101      08201      08301
                            us/cm      deg C    mg/L O2    mg/L O2    mg/L O2


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       33         33         33         33         28
 MEAN                        224.       15.7        9.6         2.         7.
 MINIMUM                      95.        7.0        6.9         0.         4.
 DATE OF MINIMUM       1991-03-11 1993-02-02 1991-09-18 1991-10-09 1992-01-14
 10TH PERCENTILE             135.        8.5        7.5         1.         4.
 MEDIAN                      191.       14.5        9.2         2.         7.
 90TH PERCENTILE             266.       23.8       11.8         3.        10.
 MAXIMUM                    1000.       27.0       12.4         4.        16.
 DATE OF MAXIMUM       1991-09-18 1993-08-10 1993-05-11 1993-05-11 1991-06-12
 STANDARD DEVIATION          157.        6.0        1.5         1.         3.




                               pH         pH   COLIFORM   FAEC COL       FAEC
                                                  TOTAL                 STREP
                            10301      10302      36001      36011      36101
                         pH UNITS   pH UNITS   No/100ml   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       11         22         31         33         21
 MEAN                         7.4        7.5    4.7E+04      3782.      4031.
 MINIMUM                      6.9        6.9    3.6E+02        25.        23.
 DATE OF MINIMUM       1993-01-06 1991-01-09 1993-06-21 1991-09-18 1991-04-08
 10TH PERCENTILE              6.9        7.0    1.4E+03        41.        37.
 MEDIAN                       7.2        7.5    1.0E+04       280.       250.
 90TH PERCENTILE              7.9        7.9    7.4E+04      5420.     11280.
 MAXIMUM                      8.3        8.1    8.0E+05     50000.     37000.
 DATE OF MAXIMUM       1993-08-10 1991-08-12 1993-09-14 1993-09-14 1992-07-14
 STANDARD DEVIATION           0.5        0.3    1.4E+05     11203.      9315.





 STATION - PINHAO-DOURO RIVER                       STATION NO. 073006
 COUNTRY - PORTUGAL                                 DEPTH(M)       0.0
 LOCATION - OCT. 2  LAT. 41/01/48  LONG. 006/58/12  ELEVATION(M)   0.0
 REGIONAL CENTRE - EURA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1991-01-01 TO 1993-12-31
 PERIOD OF RECORD FROM  - 1991-01-14 TO 1992-12-21

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP         O2        BOD        COD
                             COND                  DISS                      
                            02040      02061      08101      08201      08301
                            us/cm      deg C    mg/L O2    mg/L O2    mg/L O2


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       23         22         23         23         20
 MEAN                        247.       14.9        9.4         2.         7.
 MINIMUM                     151.        6.0        5.9         0.         4.
 DATE OF MINIMUM       1992-04-28 1992-01-21 1992-09-23 1991-12-17 1992-03-16
 10TH PERCENTILE             194.        7.2        6.7         1.         4.
 MEDIAN                      249.       13.0        9.6         2.         7.
 90TH PERCENTILE             285.       23.6       11.1         3.        11.
 MAXIMUM                     365.       25.0       14.0         5.        14.
 DATE OF MAXIMUM       1992-09-23 1991-08-19 1992-03-16 1991-07-22 1992-07-20
 STANDARD DEVIATION           45.        6.0        1.9         1.         3.




                               pH   COLIFORM   FAEC COL       FAEC
                                       TOTAL                 STREP
                            10302      36001      36011      36101
                         pH UNITS   No/100ml   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          0          0
 NO. OF G-FLAGGED VALUES        0          1          0          0
 NO. OF UNFLAGGED VALUES       23         16         20          6
 MEAN                         7.8    6.7E+04      1525.       134.
 MINIMUM                      7.0    2.7E+02        20.        20.
 DATE OF MINIMUM       1991-01-14 1992-01-21 1991-11-26 1991-07-22
 10TH PERCENTILE              7.0    3.7E+02        20.           
 MEDIAN                       7.7    5.1E+03        82.       155.
 90TH PERCENTILE              8.3    2.8E+04       430.           
 MAXIMUM                      8.8    1.0E+06     24000.       220.
 DATE OF MAXIMUM       1992-07-20 1991-06-17 1991-09-18 1991-10-22
 STANDARD DEVIATION           0.5    2.4E+05      5362.        71.





 STATION - MIRANDA DO DOURO RIVER                   STATION NO. 073007
 COUNTRY - PORTUGAL                                 DEPTH(M)       0.0
 LOCATION - OCT. 2  LAT. 41/28/48  LONG. 006/18/00  ELEVATION(M)   0.0
 REGIONAL CENTRE - EURA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1991-01-01 TO 1993-12-31
 PERIOD OF RECORD FROM  - 1991-01-14 TO 1993-12-27

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP         O2        BOD        COD
                             COND                  DISS                      
                            02040      02061      08101      08201      08301
                            us/cm      deg C    mg/L O2    mg/L O2    mg/L O2


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       34         34         34         33         30
 MEAN                        323.       13.4        8.5         3.        10.
 MINIMUM                     151.        4.0        1.6         1.         3.
 DATE OF MINIMUM       1992-11-16 1992-01-20 1992-09-24 1992-06-29 1991-07-22
 10TH PERCENTILE             229.        5.6        3.4         1.         4.
 MEDIAN                      311.       14.0        8.6         3.         9.
 90TH PERCENTILE             409.       20.4       11.0         4.        15.
 MAXIMUM                     498.       26.0       15.2         7.        25.
 DATE OF MAXIMUM       1993-03-22 1992-07-20 1992-07-20 1992-07-20 1992-07-20
 STANDARD DEVIATION           77.        5.8        2.9         1.         5.




                               pH         pH   COLIFORM   FAEC COL       FAEC
                                                  TOTAL                 STREP
                            10301      10302      36001      36011      36101
                         pH UNITS   pH UNITS   No/100ml   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       12         22         28         32         28
 MEAN                         7.6        7.7      1975.       481.        96.
 MINIMUM                      6.6        6.8        20.        20.        20.
 DATE OF MINIMUM       1993-08-23 1991-01-14 1992-03-16 1991-01-14 1991-03-18
 10TH PERCENTILE              6.7        6.9        20.        20.        20.
 MEDIAN                       7.6        7.7       560.        20.        43.
 90TH PERCENTILE              8.0        8.4      6610.       604.       244.
 MAXIMUM                      8.1        8.8      7900.      8000.       540.
 DATE OF MAXIMUM       1993-03-22 1992-07-20 1993-06-28 1991-09-19 1993-06-28
 STANDARD DEVIATION           0.4        0.5      2685.      1552.       126.





 STATION - S.JOAO DE LOURE-VOUGA RIVER              STATION NO. 073008
 COUNTRY - PORTUGAL                                 DEPTH(M)       0.0
 LOCATION - OCT. 2  LAT. 40/37/48  LONG. 008/30/00  ELEVATION(M)   0.0
 REGIONAL CENTRE - EURA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1991-01-01 TO 1993-12-31
 PERIOD OF RECORD FROM  - 1991-01-07 TO 1993-12-13

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP         O2        BOD        COD
                             COND                  DISS                      
                            02040      02061      08101      08201      08301
                            us/cm      deg C    mg/L O2    mg/L O2    mg/L O2


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       33         34         33         32         32
 MEAN                        129.       14.9        9.3         5.        30.
 MINIMUM                      35.        5.0        3.0         2.         2.
 DATE OF MINIMUM       1991-01-07 1992-02-04 1991-09-09 1991-01-07 1991-01-07
 10TH PERCENTILE              64.        7.0        4.8         2.         8.
 MEDIAN                      109.       14.0        9.5         4.        32.
 90TH PERCENTILE             211.       21.9       13.3         7.        40.
 MAXIMUM                     385.       26.0       14.5        15.        72.
 DATE OF MAXIMUM       1993-07-19 1992-09-07 1992-03-04 1992-10-06 1993-11-15
 STANDARD DEVIATION           69.        5.5        3.1         3.        15.




                               pH         pH   COLIFORM   FAEC COL       FAEC
                                                  TOTAL                 STREP
                            10301      10302      36001      36011      36101
                         pH UNITS   pH UNITS   No/100ml   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          1          0          0
 NO. OF UNFLAGGED VALUES       10         23         19         21         20
 MEAN                         7.1        7.2    1.1E+05    1.5E+04      1975.
 MINIMUM                      6.3        6.0    7.0E+02    1.2E+02        20.
 DATE OF MINIMUM       1993-06-14 1991-01-07 1993-07-19 1993-11-15 1993-12-13
 10TH PERCENTILE              6.3        6.4    1.1E+03    1.5E+02        48.
 MEDIAN                       7.0        7.3    2.2E+04    1.4E+03       340.
 90TH PERCENTILE              7.7        7.8    2.4E+05    2.3E+04      7900.
 MAXIMUM                      7.9        8.0    1.0E+06    2.0E+05     13400.
 DATE OF MAXIMUM       1993-11-15 1992-06-01 1992-10-06 1992-10-06 1992-10-06
 STANDARD DEVIATION           0.6        0.5    2.4E+05    4.3E+04      3660.




                               Cd         Ba
                            TOTAL      TOTAL
                            48001      80011
                          mg/L Cd    ug/L Hg


 NO. OF L-FLAGGED VALUES        0          0
 NO. OF G-FLAGGED VALUES        0          0
 NO. OF UNFLAGGED VALUES       32         32
 MEAN                       0.005      0.100
 MINIMUM                    0.005      0.100
 DATE OF MINIMUM       1991-01-07 1991-01-07
 10TH PERCENTILE            0.005      0.100
 MEDIAN                     0.005      0.100
 90TH PERCENTILE            0.005      0.100
 MAXIMUM                    0.005      0.100
 DATE OF MAXIMUM       1993-12-13 1993-12-13
 STANDARD DEVIATION         0.000      0.000





 STATION - PONTE PENACOVA - MONDEGO RIVER           STATION NO. 073009
 COUNTRY - PORTUGAL                                 DEPTH(M)       0.0
 LOCATION - OCT. 2  LAT. 40/21/00  LONG. 006/13/48  ELEVATION(M)   0.0
 REGIONAL CENTRE - EURA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1991-01-01 TO 1993-12-31
 PERIOD OF RECORD FROM  - 1991-01-14 TO 1993-12-15

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP         O2        BOD        COD
                             COND                  DISS                      
                            02040      02061      08101      08201      08301
                            us/cm      deg C    mg/L O2    mg/L O2    mg/L O2


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       34         35         34         33         34
 MEAN                         62.       15.5       10.8         2.        21.
 MINIMUM                      31.        5.0        8.0         0.         2.
 DATE OF MINIMUM       1992-11-10 1992-01-10 1991-08-19 1992-05-11 1991-01-14
 10TH PERCENTILE              48.       10.2        8.3         1.         4.
 MEDIAN                       64.       15.0       10.7         2.        20.
 90TH PERCENTILE              72.       21.2       13.0         3.        34.
 MAXIMUM                     107.       23.2       13.1        10.        52.
 DATE OF MAXIMUM       1991-08-19 1991-09-16 1993-01-19 1992-09-14 1992-05-11
 STANDARD DEVIATION           13.        4.6        1.6         2.        12.




                               pH         pH   COLIFORM   FAEC COL       FAEC
                                                  TOTAL                 STREP
                            10301      10302      36001      36011      36101
                         pH UNITS   pH UNITS   No/100ml   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       11         23         18         25         18
 MEAN                         7.3        7.2      1720.       579.       129.
 MINIMUM                      6.8        6.3       150.        20.         5.
 DATE OF MINIMUM       1993-06-16 1991-08-19 1991-11-11 1991-01-14 1991-11-11
 10TH PERCENTILE              6.8        6.5       150.        20.        11.
 MEDIAN                       7.3        7.3       515.       200.        20.
 90TH PERCENTILE              7.6        8.0      2560.      2400.       499.
 MAXIMUM                      7.6        8.4     15000.      3400.       790.
 DATE OF MAXIMUM       1993-12-15 1992-07-13 1991-12-09 1992-11-10 1991-04-02
 STANDARD DEVIATION           0.3        0.6      3507.      1006.       244.




                               Cd         Ba
                            TOTAL      TOTAL
                            48001      80011
                          mg/L Cd    ug/L Hg


 NO. OF L-FLAGGED VALUES        0          0
 NO. OF G-FLAGGED VALUES        0          0
 NO. OF UNFLAGGED VALUES       22         22
 MEAN                       0.005      0.059
 MINIMUM                    0.005      0.010
 DATE OF MINIMUM       1991-01-14 1991-01-14
 10TH PERCENTILE            0.005      0.010
 MEDIAN                     0.005      0.100
 90TH PERCENTILE            0.005      0.100
 MAXIMUM                    0.005      0.100
 DATE OF MAXIMUM       1993-12-15 1993-12-15
 STANDARD DEVIATION         0.000      0.046





 STATION - ALBUFEIRA DE CEDILHO-TENJO R.            STATION NO. 073010
 COUNTRY - PORTUGAL                                 DEPTH(M)       0.0
 LOCATION - OCT. 2  LAT. 39/40/12  LONG. 007/31/48  ELEVATION(M)   0.0
 REGIONAL CENTRE - EURA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1991-01-01 TO 1993-12-31
 PERIOD OF RECORD FROM  - 1991-01-08 TO 1992-12-01

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP         O2        BOD        COD
                             COND                  DISS                      
                            02040      02061      08101      08201      08301
                            us/cm      deg C    mg/L O2    mg/L O2    mg/L O2


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       22         22         21         22         19
 MEAN                        513.       14.1        6.6         2.        14.
 MINIMUM                     270.        9.0        3.8         0.        10.
 DATE OF MINIMUM       1992-01-14 1991-03-05 1992-09-08 1992-12-01 1991-01-08
 10TH PERCENTILE             289.       10.0        3.9         1.        10.
 MEDIAN                      430.       14.5        6.9         2.        10.
 90TH PERCENTILE             739.       17.0        9.5         3.        19.
 MAXIMUM                     800.       22.0       10.2         5.        54.
 DATE OF MAXIMUM       1992-08-18 1992-08-18 1991-06-18 1991-04-02 1992-08-18
 STANDARD DEVIATION          180.        3.4        2.0         1.        11.




                               pH   COLIFORM   FAEC COL       FAEC         Cd
                                       TOTAL                 STREP      TOTAL
                            10302      36001      36011      36101      48001
                         pH UNITS   No/100ml   No/100ml   No/100ml    mg/L Cd


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       22         21         21         18         18
 MEAN                         7.2       537.       201.        71.      0.005
 MINIMUM                      6.5         6.         0.         0.      0.005
 DATE OF MINIMUM       1992-08-18 1991-11-05 1991-11-05 1992-03-17 1991-02-05
 10TH PERCENTILE              6.9         9.         0.         0.      0.005
 MEDIAN                       7.1       130.        20.        18.      0.005
 90TH PERCENTILE              7.7       668.       156.       163.      0.005
 MAXIMUM                      7.9      6800.      3200.       530.      0.005
 DATE OF MAXIMUM       1991-02-05 1992-11-03 1992-11-03 1991-10-22 1992-11-03
 STANDARD DEVIATION           0.3      1476.       691.       134.      0.000




                               Ba       INST
                            TOTAL     DISCHG
                            80011      97160
                          ug/L Hg       m3/S


 NO. OF L-FLAGGED VALUES        0          0
 NO. OF G-FLAGGED VALUES        0          0
 NO. OF UNFLAGGED VALUES       21         10
 MEAN                       0.370       75.7
 MINIMUM                    0.050        0.0
 DATE OF MINIMUM       1991-06-18 1992-06-23
 10TH PERCENTILE            0.050        0.0
 MEDIAN                     0.050       33.0
 90TH PERCENTILE            0.219      182.0
 MAXIMUM                    5.400      277.0
 DATE OF MAXIMUM       1992-08-18 1992-01-14
 STANDARD DEVIATION         1.158       98.0





 STATION - ROCHA DA GALE-GUADIANA RIVER             STATION NO. 073011
 COUNTRY - PORTUGAL                                 DEPTH(M)       0.0
 LOCATION - OCT. 2  LAT. 37/37/48  LONG. 007/40/12  ELEVATION(M)   0.0
 REGIONAL CENTRE - EURA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1991-01-01 TO 1993-12-31
 PERIOD OF RECORD FROM  - 1991-01-14 TO 1993-12-14

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP         O2        BOD        COD
                             COND                  DISS                      
                            02040      02061      08101      08201      08301
                            us/cm      deg C    mg/L O2    mg/L O2    mg/L O2


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36         33         27         32         35
 MEAN                        614.       18.2        8.2         6.        29.
 MINIMUM                     191.        8.5        2.8         2.        17.
 DATE OF MINIMUM       1991-07-08 1992-01-06 1992-08-03 1993-04-13 1991-04-08
 10TH PERCENTILE             378.       10.3        6.0         2.        19.
 MEDIAN                      605.       18.0        8.2         5.        27.
 90TH PERCENTILE             838.       25.5       11.0         9.        41.
 MAXIMUM                     902.       27.5       11.9        18.        47.
 DATE OF MAXIMUM       1993-05-11 1991-08-12 1991-02-04 1993-06-08 1992-08-03
 STANDARD DEVIATION          185.        5.7        2.0         3.         8.




                               pH         pH   COLIFORM   FAEC COL       FAEC
                                                  TOTAL                 STREP
                            10301      10302      36001      36011      36101
                         pH UNITS   pH UNITS   No/100ml   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       12         24         24         24         21
 MEAN                         8.3        8.5      1018.       596.    1.3E+04
 MINIMUM                      7.8        7.6         5.         0.    0.0E+00
 DATE OF MINIMUM       1993-11-09 1991-01-14 1991-07-08 1993-04-13 1991-04-08
 10TH PERCENTILE              7.8        8.0        16.         0.    0.0E+00
 MEDIAN                       8.3        8.5       110.        11.    1.3E+01
 90TH PERCENTILE              8.7        8.9      2400.       920.    2.2E+03
 MAXIMUM                      8.9        9.0      9200.      9200.    2.4E+05
 DATE OF MAXIMUM       1993-04-13 1991-07-08 1993-11-09 1993-11-09 1993-12-14
 STANDARD DEVIATION           0.3        0.3      1959.      1879.    5.2E+04




                               Cd         Ba       INST
                            TOTAL      TOTAL     DISCHG
                            48001      80011      97160
                          mg/L Cd    ug/L Hg       m3/S


 NO. OF L-FLAGGED VALUES        0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES       23         17         21
 MEAN                       0.004      0.105       38.4
 MINIMUM                    0.000      0.050        1.9
 DATE OF MINIMUM       1991-07-08 1991-03-11 1992-05-04
 10TH PERCENTILE            0.000      0.050        2.2
 MEDIAN                     0.005      0.050        9.8
 90TH PERCENTILE            0.005      0.272       44.7
 MAXIMUM                    0.005      0.300      532.0
 DATE OF MAXIMUM       1991-06-05 1992-10-12 1991-03-11
 STANDARD DEVIATION         0.002      0.092      113.9





 STATION - MONTE DA VINHA-GUADIANA RIVER            STATION NO. 073012
 COUNTRY - PORTUGAL                                 DEPTH(M)       0.0
 LOCATION - OCT. 2  LAT. 38/37/12  LONG. 007/16/12  ELEVATION(M)   0.0
 REGIONAL CENTRE - EURA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1991-01-01 TO 1993-12-31
 PERIOD OF RECORD FROM  - 1991-01-07 TO 1993-12-14

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP         O2        BOD        COD
                             COND                  DISS                      
                            02040      02061      08101      08201      08301
                            us/cm      deg C    mg/L O2    mg/L O2    mg/L O2


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36         36         27         34         34
 MEAN                        613.       14.9        7.2         9.        42.
 MINIMUM                     314.        3.0        2.3         1.        10.
 DATE OF MINIMUM       1992-02-03 1993-12-14 1991-11-04 1993-04-13 1992-10-12
 10TH PERCENTILE             437.        6.6        4.4         4.        25.
 MEDIAN                      631.       15.0        6.4         8.        43.
 90TH PERCENTILE             746.       23.6       10.8        14.        55.
 MAXIMUM                     848.       26.0       15.1        16.        96.
 DATE OF MAXIMUM       1993-07-13 1991-08-05 1992-01-06 1993-06-08 1993-07-13
 STANDARD DEVIATION          129.        6.2        2.8         4.        15.




                               pH         pH   COLIFORM   FAEC COL       FAEC
                                                  TOTAL                 STREP
                            10301      10302      36001      36011      36101
                         pH UNITS   pH UNITS   No/100ml   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       12         24         33         32         12
 MEAN                         8.0        7.9      2822.      1354.      2604.
 MINIMUM                      7.7        7.2       920.         0.         0.
 DATE OF MINIMUM       1993-11-09 1991-09-02 1992-09-07 1993-04-13 1991-02-04
 10TH PERCENTILE              7.7        7.4      2330.         0.         0.
 MEDIAN                       7.9        7.9      2400.       730.        55.
 90TH PERCENTILE              8.4        8.3      2400.      2400.      3170.
 MAXIMUM                      8.6        8.7      9200.      9200.     22400.
 DATE OF MAXIMUM       1993-07-13 1992-01-06 1993-11-09 1993-11-09 1993-11-09
 STANDARD DEVIATION           0.3        0.4      1759.      1779.      6353.




                               Cd         Ba       INST
                            TOTAL      TOTAL     DISCHG
                            48001      80011      97160
                          mg/L Cd    ug/L Hg       m3/S


 NO. OF L-FLAGGED VALUES        0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES       23         18         11
 MEAN                       0.005      0.101       21.2
 MINIMUM                    0.000      0.050       11.8
 DATE OF MINIMUM       1992-01-06 1991-01-07 1991-12-02
 10TH PERCENTILE            0.004      0.050       11.9
 MEDIAN                     0.005      0.050       14.9
 90TH PERCENTILE            0.005      0.302       23.0
 MAXIMUM                    0.005      0.380       71.0
 DATE OF MAXIMUM       1991-12-02 1991-07-01 1991-03-04
 STANDARD DEVIATION         0.001      0.108       16.9





 STATION - ALBUFEIRA DO FOCINHO-DUORO R.            STATION NO. 073013
 COUNTRY - PORTUGAL                                 DEPTH(M)       0.0
 LOCATION - OCT. 2  LAT. 41/07/12  LONG. 007/06/00  ELEVATION(M)   0.0
 REGIONAL CENTRE - EURA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1991-01-01 TO 1993-12-31
 PERIOD OF RECORD FROM  - 1991-01-14 TO 1993-12-27

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP         O2        BOD        COD
                             COND                  DISS                      
                            02040      02061      08101      08201      08301
                            us/cm      deg C    mg/L O2    mg/L O2    mg/L O2


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       34         34         34         35         32
 MEAN                        255.       15.6        9.8         3.         9.
 MINIMUM                      40.        6.5        5.2         1.         3.
 DATE OF MINIMUM       1991-04-15 1991-01-14 1992-11-16 1992-12-21 1991-10-23
 10TH PERCENTILE             223.        7.4        6.5         1.         4.
 MEDIAN                      256.       15.0       10.1         2.         8.
 90TH PERCENTILE             317.       23.8       12.1         5.        15.
 MAXIMUM                     329.       29.0       12.8         6.        22.
 DATE OF MAXIMUM       1993-06-28 1991-07-22 1992-04-28 1991-07-22 1992-05-25
 STANDARD DEVIATION           55.        6.3        2.1         1.         5.




                               pH         pH   COLIFORM   FAEC COL       FAEC
                                                  TOTAL                 STREP
                            10301      10302      36001      36011      36101
                         pH UNITS   pH UNITS   No/100ml   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       12         23         31         32         26
 MEAN                         7.7        7.9      3620.       101.       110.
 MINIMUM                      7.2        6.4        20.        10.        20.
 DATE OF MINIMUM       1993-10-25 1991-04-15 1991-07-22 1992-07-20 1991-03-18
 10TH PERCENTILE              7.2        7.2        20.        20.        20.
 MEDIAN                       7.6        7.8       210.        20.        20.
 90TH PERCENTILE              8.2        8.6      1436.       228.       270.
 MAXIMUM                      8.5        9.2     62000.      1500.       820.
 DATE OF MAXIMUM       1993-04-26 1992-05-25 1991-12-18 1992-09-24 1992-07-20
 STANDARD DEVIATION           0.4        0.6     12971.       271.       189.




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Last updated: 2001-07-30