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STATISTICS FOR THE UNITED KINGDOM
GEMS/WATER - STATISTICAL SUMMARY BY STATION 2002-01-08 PAGE 835
STATION - RIVER THAMES STATION NO. 027001
COUNTRY - UNITED KINGDOM DEPTH(M) 3.0
LOCATION - OCT. 0 LAT. 51/25/44 LONG. 000/19/02 ELEVATION(M) 4.7
REGIONAL CENTRE - EURA WATER TYPE RIVER
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-01-07 TO 1990-12-12
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP NO3NO2 NH3 PERCENT
COND DO SAT
02041 02062 07105 07556 08001
us/cm deg C mg/L N mg/L N PERCENT
NO. OF L-FLAGGED VALUES 0 0 1 9 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 43 100 108 100 95
MEAN 685. 16.0 7.05 0.39 87.
MINIMUM 461. 5.0 0.20 0.05 54.
DATE OF MINIMUM 1990-02-06 1988-03-03 1990-10-11 1988-04-07 1989-10-09
10TH PERCENTILE 586. 8.0 5.69 0.06 66.
MEDIAN 678. 17.2 7.10 0.23 88.
90TH PERCENTILE 777. 22.0 8.51 0.94 106.
MAXIMUM 997. 26.0 10.80 2.30 144.
DATE OF MAXIMUM 1990-11-06 1989-07-24 1990-11-15 1989-08-15 1989-07-24
STANDARD DEVIATION 90. 5.4 1.36 0.42 17.
O2 BOD ALK pH SUSP SOL
DISS TOTAL 105 DEG
08102 08201 10102 10301 10401
mg/L O2 mg/L O2 mg/L pH UNITS mg/L
NO. OF L-FLAGGED VALUES 0 5 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 94 103 43 109 94
MEAN 8.8 3. 184.35 7.8 12.
MINIMUM 5.3 1. 99.00 6.9 2.
DATE OF MINIMUM 1989-09-12 1989-09-11 1990-11-02 1990-11-09 1989-07-20
10TH PERCENTILE 6.6 1. 137.30 7.4 4.
MEDIAN 8.6 2. 193.00 7.7 8.
90TH PERCENTILE 11.4 5. 211.70 8.0 24.
MAXIMUM 13.0 8. 313.00 9.0 96.
DATE OF MAXIMUM 1988-05-16 1990-11-09 1990-04-03 1989-05-18 1988-01-07
STANDARD DEVIATION 1.9 1. 35.53 0.3 14.
Na Mg Si SULPHATE Cl
DISS DISS REACTIVE DISS
11105 12102 14101 16304 17203
mg/L Na mg/L Mg mg/LSiO2 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 24 16 34 42 109
MEAN 42. 5. 13.08 63. 55.
MINIMUM 16. 4. 0.30 41. 31.
DATE OF MINIMUM 1990-11-09 1990-04-03 1989-05-16 1989-10-05 1988-02-04
10TH PERCENTILE 20. 4. 11.60 50. 38.
MEDIAN 43. 5. 13.00 64. 57.
90TH PERCENTILE 58. 6. 14.60 76. 66.
MAXIMUM 64. 6. 21.50 87. 89.
DATE OF MAXIMUM 1990-08-09 1989-02-16 1989-09-05 1990-11-30 1990-11-02
STANDARD DEVIATION 14. 1. 2.87 10. 11.
DDT LINDANE ALDRIN DIELDRIN K
TOTAL DISS
18002 18070 18130 18150 19102
ug/L ug/L ug/L ug/L mg/L K
NO. OF L-FLAGGED VALUES 34 0 23 28 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 1 37 0 8 22
MEAN 0.037 0.025 0.007 0.005 8.7
MINIMUM 0.001 0.008 0.001 0.002 4.4
DATE OF MINIMUM 1990-04-03 1988-02-15 1989-11-21 1989-11-21 1990-04-03
10TH PERCENTILE 0.002 0.012 0.001 0.004 5.6
MEDIAN 0.050 0.022 0.010 0.005 8.8
90TH PERCENTILE 0.050 0.043 0.010 0.005 10.9
MAXIMUM 0.050 0.056 0.010 0.007 12.2
DATE OF MAXIMUM 1989-10-05 1989-11-21 1989-10-05 1990-05-09 1989-10-05
STANDARD DEVIATION 0.021 0.012 0.004 0.001 1.9
Ca Cr Fe Ni Ni
DISS TOTAL TOTAL TOTAL DISS
20103 24002 26004 28001 28101
mg/L Ca mg/L Cr mg/L Fe mg/L Ni mg/L Ni
NO. OF L-FLAGGED VALUES 0 44 3 30 12
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 24 0 22 14 4
MEAN 93.875 0.007 0.30 0.007 0.005
MINIMUM 70.000 0.005 0.01 0.005 0.005
DATE OF MINIMUM 1990-11-02 1988-08-15 1990-11-22 1988-08-15 1988-11-24
10TH PERCENTILE 73.400 0.005 0.02 0.005 0.005
MEDIAN 91.500 0.005 0.15 0.006 0.005
90TH PERCENTILE 103.000 0.010 0.74 0.010 0.005
MAXIMUM 176.000 0.010 1.67 0.012 0.005
DATE OF MAXIMUM 1990-04-03 1988-07-19 1990-01-08 1990-11-30 1990-10-09
STANDARD DEVIATION 20.806 0.002 0.45 0.002 0.000
Cu Cu Zn Zn As
TOTAL DISS TOTAL DISS TOTAL
29006 29106 30004 30104 33007
mg/L Cu mg/L Cu mg/L Zn mg/L Zn mg/L As
NO. OF L-FLAGGED VALUES 22 22 4 4 35
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 21 21 40 12 0
MEAN 0.008 0.007 0.024 0.016 0.005
MINIMUM 0.004 0.003 0.008 0.006 0.005
DATE OF MINIMUM 1988-09-19 1988-08-15 1988-10-31 1989-08-31 1988-02-04
10TH PERCENTILE 0.004 0.004 0.010 0.007 0.005
MEDIAN 0.006 0.005 0.019 0.014 0.005
90TH PERCENTILE 0.010 0.010 0.038 0.027 0.005
MAXIMUM 0.036 0.010 0.094 0.033 0.005
DATE OF MAXIMUM 1990-11-09 1988-07-19 1990-12-12 1989-02-16 1990-12-12
STANDARD DEVIATION 0.005 0.003 0.017 0.009 0.000
As Cd Cd Ba Pb
DISS TOTAL DISS TOTAL TOTAL
33104 48001 48101 80011 82001
mg/L As mg/L Cd mg/L Cd ug/L Hg mg/L Pb
NO. OF L-FLAGGED VALUES 10 28 10 37 27
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 0 14 7 0 15
MEAN 0.005 0.000 0.000 0.100 0.004
MINIMUM 0.005 0.000 0.000 0.100 0.002
DATE OF MINIMUM 1989-01-19 1988-07-19 1988-11-24 1988-01-07 1988-07-19
10TH PERCENTILE 0.005 0.000 0.000 0.100 0.002
MEDIAN 0.005 0.000 0.000 0.100 0.003
90TH PERCENTILE 0.005 0.001 0.001 0.100 0.005
MAXIMUM 0.005 0.001 0.001 0.100 0.007
DATE OF MAXIMUM 1990-10-09 1988-07-07 1988-07-07 1990-12-12 1990-11-06
STANDARD DEVIATION 0.000 0.000 0.000 0.000 0.002
Pb
DISS
82101
mg/L Pb
NO. OF L-FLAGGED VALUES 13
NO. OF G-FLAGGED VALUES 0
NO. OF UNFLAGGED VALUES 1
MEAN 0.002
MINIMUM 0.002
DATE OF MINIMUM 1988-11-24
10TH PERCENTILE 0.002
MEDIAN 0.002
90TH PERCENTILE 0.002
MAXIMUM 0.002
DATE OF MAXIMUM 1990-10-09
STANDARD DEVIATION 0.000
STATION - RIVER AVON STATION NO. 027002
COUNTRY - UNITED KINGDOM DEPTH(M) 4.5
LOCATION - OCT. 0 LAT. 51/25/07 LONG. 002/29/11 ELEVATION(M) 15.5
REGIONAL CENTRE - EURA WATER TYPE RIVER
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-01-29 TO 1990-11-09
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
TEMP NO3NO2 NH3 PERCENT O2
DO SAT DISS
02061 07105 07556 08001 08102
deg C mg/L N mg/L N PERCENT 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 50 58 52 51 51
MEAN 11.0 7.30 0.30 85. 9.4
MINIMUM 4.0 5.10 0.05 68. 6.3
DATE OF MINIMUM 1988-11-03 1989-08-25 1989-05-15 1989-08-03 1989-08-03
10TH PERCENTILE 5.0 5.30 0.09 73. 7.3
MEDIAN 10.0 6.75 0.30 84. 9.6
90TH PERCENTILE 18.0 9.42 0.51 93. 11.2
MAXIMUM 20.0 15.40 0.77 98. 12.6
DATE OF MAXIMUM 1990-07-18 1989-11-16 1990-11-09 1989-04-13 1988-11-03
STANDARD DEVIATION 4.7 2.03 0.17 8. 1.6
BOD ALK pH SUSP SOL Na
TOTAL 105 DEG DISS
08201 10102 10301 10401 11102
mg/L O2 mg/L pH UNITS mg/L mg/L Na
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 57 7 58 58 46
MEAN 4. 230.86 8.0 21. 31.
MINIMUM 1. 206.00 7.4 3. 12.
DATE OF MINIMUM 1988-02-17 1989-04-13 1988-03-25 1988-11-24 1990-03-07
10TH PERCENTILE 2. 7.8 6. 15.
MEDIAN 3. 228.00 8.0 13. 28.
90TH PERCENTILE 6. 8.3 35. 47.
MAXIMUM 9. 252.00 8.9 186. 65.
DATE OF MAXIMUM 1990-05-15 1988-05-19 1990-05-15 1989-12-15 1989-10-18
STANDARD DEVIATION 2. 16.25 0.3 31. 13.
Mg Si SULPHATE Cl LINDANE
DISS REACTIVE DISS
12103 14101 16304 17203 18070
mg/L Mg mg/LSiO2 mg/L SO4 mg/L Cl ug/L
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 46 30 21 58 5
MEAN 7. 4.05 66. 45. 0.035
MINIMUM 4. 0.20 37. 23. 0.019
DATE OF MINIMUM 1989-03-16 1989-05-15 1990-01-04 1989-05-09 1989-07-05
10TH PERCENTILE 5. 3.20 52. 29.
MEDIAN 6. 4.30 68. 42. 0.029
90TH PERCENTILE 7. 4.86 81. 63.
MAXIMUM 12. 5.30 83. 74. 0.063
DATE OF MAXIMUM 1990-10-03 1989-08-08 1989-06-09 1988-11-03 1990-10-03
STANDARD DEVIATION 2. 0.93 12. 13. 0.018
K Ca Cr Fe Fe
DISS DISS TOTAL TOTAL DISS
19102 20101 24002 26004 26104
mg/L K mg/L Ca mg/L Cr mg/L Fe mg/L Fe
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 48 46 21 17 15
MEAN 7.3 113.065 0.002 0.42 0.08
MINIMUM 2.4 92.000 0.001 0.06 0.00
DATE OF MINIMUM 1990-03-07 1989-03-16 1988-05-19 1989-10-18 1990-10-03
10TH PERCENTILE 5.2 102.280 0.001 0.06 0.01
MEDIAN 7.3 111.800 0.001 0.13 0.02
90TH PERCENTILE 9.7 125.550 0.004 0.95 0.10
MAXIMUM 13.5 130.800 0.007 2.72 0.81
DATE OF MAXIMUM 1989-10-24 1988-11-03 1989-12-15 1989-12-15 1989-12-15
STANDARD DEVIATION 2.0 8.785 0.002 0.83 0.21
Ni Cu Cu Zn Zn
TOTAL TOTAL DISS TOTAL DISS
28001 29006 29106 30004 30104
mg/L Ni mg/L Cu mg/L Cu mg/L Zn mg/L Zn
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 27 43 16 42 17
MEAN 0.006 0.006 0.006 0.026 0.017
MINIMUM 0.002 0.003 0.002 0.010 0.007
DATE OF MINIMUM 1988-08-12 1988-09-27 1990-03-07 1990-03-07 1990-03-07
10TH PERCENTILE 0.003 0.003 0.003 0.011 0.007
MEDIAN 0.004 0.004 0.004 0.022 0.013
90TH PERCENTILE 0.010 0.009 0.011 0.039 0.019
MAXIMUM 0.014 0.021 0.013 0.087 0.073
DATE OF MAXIMUM 1989-01-16 1989-12-15 1990-05-15 1989-12-15 1989-12-15
STANDARD DEVIATION 0.003 0.003 0.003 0.015 0.015
As Cd Pb Pb
TOTAL TOTAL TOTAL DISS
33007 48001 82001 82101
mg/L As mg/L Cd mg/L Pb mg/L Pb
NO. OF L-FLAGGED VALUES 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0
NO. OF UNFLAGGED VALUES 4 10 34 4
MEAN 0.002 0.000 0.007 0.003
MINIMUM 0.002 0.000 0.002 0.002
DATE OF MINIMUM 1989-12-15 1988-01-29 1988-09-27 1990-03-27
10TH PERCENTILE 0.000 0.002
MEDIAN 0.002 0.000 0.005 0.002
90TH PERCENTILE 0.000 0.013
MAXIMUM 0.003 0.000 0.027 0.006
DATE OF MAXIMUM 1990-07-18 1989-08-03 1989-12-15 1990-06-25
STANDARD DEVIATION 0.001 0.000 0.006 0.002
STATION - RIVER EXE STATION NO. 027003
COUNTRY - UNITED KINGDOM DEPTH(M) 1.5
LOCATION - OCT. 0 LAT. 50/48/13 LONG. 003/30/36 ELEVATION(M) 25.9
REGIONAL CENTRE - EURA WATER TYPE RIVER
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-01-11 TO 1990-12-12
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP NO3NO2 NH3 PERCENT
COND DO SAT
02041 02062 07105 07556 08001
us/cm deg C mg/L N mg/L N PERCENT
NO. OF L-FLAGGED VALUES 0 0 0 1 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 66 66 66 65 66
MEAN 181. 10.4 2.65 0.06 94.
MINIMUM 104. 3.0 0.92 0.01 58.
DATE OF MINIMUM 1988-02-01 1989-12-01 1990-07-06 1988-08-08 1989-12-05
10TH PERCENTILE 136. 4.8 1.63 0.02 84.
MEDIAN 180. 9.2 2.42 0.05 95.
90TH PERCENTILE 223. 17.0 3.52 0.09 101.
MAXIMUM 285. 21.0 9.73 0.26 109.
DATE OF MAXIMUM 1990-02-15 1989-07-24 1990-02-15 1989-12-13 1989-12-06
STANDARD DEVIATION 36. 4.6 1.17 0.05 9.
O2 BOD ALK pH SUSP SOL
DISS TOTAL 105 DEG
08102 08201 10102 10301 10401
mg/L O2 mg/L O2 mg/L pH UNITS mg/L
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 66 66 66 66 66
MEAN 10.6 2. 38.61 7.5 15.
MINIMUM 6.6 1. 19.00 7.1 1.
DATE OF MINIMUM 1989-07-24 1988-04-06 1990-10-30 1988-02-01 1990-08-14
10TH PERCENTILE 8.5 1. 23.00 7.2 2.
MEDIAN 10.6 2. 39.00 7.5 4.
90TH PERCENTILE 12.4 3. 52.40 7.8 39.
MAXIMUM 12.8 6. 64.00 8.1 162.
DATE OF MAXIMUM 1989-11-24 1989-12-14 1989-06-26 1989-08-15 1988-02-08
STANDARD DEVIATION 1.5 1. 11.11 0.2 31.
Na Mg Si SULPHATE Cl
DISS DISS REACTIVE DISS
11102 12102 14101 16306 17203
mg/L Na mg/L Mg mg/LSiO2 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 64 64 66 66 66
MEAN 13. 4. 3.94 17. 19.
MINIMUM 6. 2. 0.50 9. 13.
DATE OF MINIMUM 1988-02-01 1990-07-06 1990-04-26 1988-02-08 1988-02-01
10TH PERCENTILE 8. 3. 2.40 10. 15.
MEDIAN 12. 4. 4.15 16. 18.
90TH PERCENTILE 19. 5. 5.04 25. 24.
MAXIMUM 25. 6. 7.80 34. 33.
DATE OF MAXIMUM 1989-10-03 1990-02-15 1990-02-15 1990-05-24 1990-02-15
STANDARD DEVIATION 4. 1. 1.15 6. 4.
DDT LINDANE ALDRIN DIELDRIN K
TOTAL DISS
18002 18070 18130 18150 19102
ug/L ug/L ug/L ug/L mg/L K
NO. OF L-FLAGGED VALUES 53 12 53 53 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 0 41 0 0 64
MEAN 0.005 0.003 0.001 0.003 2.0
MINIMUM 0.005 0.001 0.001 0.003 1.3
DATE OF MINIMUM 1988-01-11 1988-05-13 1988-01-11 1988-01-11 1990-01-17
10TH PERCENTILE 0.005 0.001 0.001 0.003 1.4
MEDIAN 0.005 0.003 0.001 0.003 1.9
90TH PERCENTILE 0.005 0.006 0.001 0.003 2.8
MAXIMUM 0.005 0.018 0.001 0.003 4.3
DATE OF MAXIMUM 1990-12-12 1988-03-04 1990-12-12 1990-12-12 1989-12-14
STANDARD DEVIATION 0.000 0.003 0.000 0.000 0.6
Ca Cr Fe Ni Cu
DISS TOTAL TOTAL TOTAL TOTAL
20103 24002 26004 28001 29006
mg/L Ca mg/L Cr mg/L Fe mg/L Ni mg/L Cu
NO. OF L-FLAGGED VALUES 0 61 0 58 58
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 64 3 64 6 6
MEAN 16.695 0.005 0.31 0.005 0.005
MINIMUM 9.000 0.005 0.06 0.005 0.005
DATE OF MINIMUM 1990-07-06 1988-01-11 1990-08-14 1988-01-11 1988-01-11
10TH PERCENTILE 11.640 0.005 0.09 0.005 0.005
MEDIAN 16.900 0.005 0.13 0.005 0.005
90TH PERCENTILE 20.480 0.005 0.66 0.005 0.005
MAXIMUM 31.100 0.010 2.65 0.012 0.010
DATE OF MAXIMUM 1990-02-15 1989-12-06 1989-12-14 1989-12-06 1989-12-06
STANDARD DEVIATION 3.676 0.001 0.52 0.001 0.001
Zn Cd Ba Pb
TOTAL TOTAL TOTAL TOTAL
30004 48001 80016 82001
mg/L Zn mg/L Cd ug/L Hg mg/L Pb
NO. OF L-FLAGGED VALUES 22 64 19 63
NO. OF G-FLAGGED VALUES 0 0 0 0
NO. OF UNFLAGGED VALUES 42 0 1 1
MEAN 0.008 0.001 0.100 0.008
MINIMUM 0.005 0.001 0.100 0.005
DATE OF MINIMUM 1988-01-11 1988-01-11 1988-01-11 1990-10-03
10TH PERCENTILE 0.005 0.001 0.100 0.005
MEDIAN 0.006 0.001 0.100 0.008
90TH PERCENTILE 0.014 0.001 0.100 0.008
MAXIMUM 0.029 0.001 0.100 0.009
DATE OF MAXIMUM 1989-12-14 1990-12-12 1990-11-22 1989-12-14
STANDARD DEVIATION 0.005 0.000 0.000 0.001
STATION - RIVER TRENT STATION NO. 027004
COUNTRY - UNITED KINGDOM DEPTH(M) 4.0
LOCATION - OCT. 0 LAT. 52/56/19 LONG. 001/08/06 ELEVATION(M) 15.7
REGIONAL CENTRE - EURA WATER TYPE RIVER
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-01-06 TO 1990-12-28
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP NO3NO2 NH3 PERCENT
COND DO SAT
02041 02061 07105 07556 08001
us/cm deg C mg/L N mg/L N PERCENT
NO. OF L-FLAGGED VALUES 0 0 0 1 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 87 85 87 86 1
MEAN 871. 11.7 8.76 0.32 129.
MINIMUM 460. 2.0 5.20 0.04
DATE OF MINIMUM 1988-01-25 1990-12-28 1988-07-25 1989-05-22
10TH PERCENTILE 647. 6.0 6.70 0.06
MEDIAN 890. 10.0 8.80 0.30
90TH PERCENTILE 1036. 18.5 10.50 0.56
MAXIMUM 1140. 23.0 11.50 1.45
DATE OF MAXIMUM 1989-12-11 1989-05-24 1990-12-20 1989-04-03
STANDARD DEVIATION 151. 4.8 1.40 0.23
O2 BOD ALK pH SUSP SOL
DISS TOTAL 105 DEG
08102 08201 10102 10301 10401
mg/L O2 mg/L O2 mg/L pH UNITS mg/L
NO. OF L-FLAGGED VALUES 0 1 0 0 1
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 83 85 86 87 87
MEAN 10.3 4. 159.05 7.9 22.
MINIMUM 8.0 1. 95.00 7.4 2.
DATE OF MINIMUM 1990-08-22 1988-08-22 1988-01-25 1990-05-21 1989-12-11
10TH PERCENTILE 8.8 2. 126.80 7.7 7.
MEDIAN 10.4 3. 160.00 7.9 14.
90TH PERCENTILE 11.7 6. 181.40 8.1 39.
MAXIMUM 13.1 10. 333.00 8.6 165.
DATE OF MAXIMUM 1990-03-01 1989-12-15 1989-06-30 1990-07-17 1989-12-15
STANDARD DEVIATION 1.2 1. 28.16 0.2 26.
Na Mg Si SULPHATE Cl
DISS DISS REACTIVE DISS
11102 12102 14101 16302 17203
mg/L Na mg/L Mg mg/LSiO2 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 44 45 45 47 88
MEAN 82. 22. 7.00 164. 102.
MINIMUM 31. 11. 0.80 96. 41.
DATE OF MINIMUM 1990-01-30 1988-01-06 1989-05-22 1990-01-30 1989-04-11
10TH PERCENTILE 44. 15. 2.95 110. 59.
MEDIAN 85. 23. 7.30 170. 104.
90TH PERCENTILE 111. 27. 9.50 208. 141.
MAXIMUM 135. 30. 12.00 222. 163.
DATE OF MAXIMUM 1990-08-16 1990-09-24 1989-12-11 1988-06-22 1990-10-17
STANDARD DEVIATION 27. 5. 2.49 35. 29.
DDT LINDANE ALDRIN DIELDRIN K
TOTAL DISS
18002 18070 18130 18150 19102
ug/L ug/L ug/L ug/L mg/L K
NO. OF L-FLAGGED VALUES 46 3 38 37 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 0 43 8 9 44
MEAN 0.003 0.023 0.005 0.004 11.1
MINIMUM 0.001 0.005 0.001 0.001 6.5
DATE OF MINIMUM 1989-01-18 1990-07-09 1989-01-18 1989-03-18 1988-12-30
10TH PERCENTILE 0.001 0.010 0.001 0.001 6.8
MEDIAN 0.001 0.023 0.002 0.004 10.6
90TH PERCENTILE 0.005 0.035 0.006 0.005 15.2
MAXIMUM 0.025 0.044 0.035 0.025 19.5
DATE OF MAXIMUM 1990-12-28 1989-01-18 1989-01-31 1990-12-28 1989-09-18
STANDARD DEVIATION 0.004 0.010 0.007 0.004 3.3
Ca Cr Cr Ni Ni
DISS TOTAL DISS TOTAL DISS
20103 24002 24052 28001 28101
mg/L Ca mg/L Cr mg/L Cr mg/L Ni mg/L Ni
NO. OF L-FLAGGED VALUES 0 3 26 1 2
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 45 77 52 79 72
MEAN 95.778 0.005 0.003 0.034 0.028
MINIMUM 72.000 0.001 0.001 0.005 0.005
DATE OF MINIMUM 1988-01-06 1988-02-04 1988-01-25 1988-06-14 1988-06-14
10TH PERCENTILE 77.500 0.002 0.002 0.013 0.011
MEDIAN 98.000 0.004 0.002 0.030 0.027
90TH PERCENTILE 109.500 0.007 0.004 0.056 0.043
MAXIMUM 115.000 0.026 0.018 0.093 0.079
DATE OF MAXIMUM 1990-04-11 1989-11-28 1989-11-28 1988-08-22 1988-11-22
STANDARD DEVIATION 11.031 0.003 0.002 0.019 0.014
Cu Cu Zn Zn As
TOTAL DISS TOTAL DISS TOTAL
29006 29106 30004 30104 33007
mg/L Cu mg/L Cu mg/L Zn mg/L Zn mg/L As
NO. OF L-FLAGGED VALUES 16 28 9 15 13
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 57 34 68 57 15
MEAN 0.019 0.017 0.062 0.047 0.003
MINIMUM 0.009 0.006 0.009 0.014 0.001
DATE OF MINIMUM 1990-04-26 1990-01-30 1990-04-26 1988-07-12 1990-01-17
10TH PERCENTILE 0.012 0.010 0.039 0.025 0.001
MEDIAN 0.020 0.017 0.054 0.050 0.003
90TH PERCENTILE 0.026 0.020 0.089 0.060 0.005
MAXIMUM 0.037 0.033 0.179 0.163 0.011
DATE OF MAXIMUM 1989-09-18 1989-02-14 1989-09-18 1989-09-18 1990-10-17
STANDARD DEVIATION 0.006 0.006 0.026 0.020 0.002
Cd Cd Ba Hg Pb
TOTAL DISS TOTAL DISS TOTAL
48001 48101 80016 80111 82001
mg/L Cd mg/L Cd ug/L Hg ug/L Hg mg/L Pb
NO. OF L-FLAGGED VALUES 59 70 39 1 22
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 24 8 5 0 58
MEAN 0.001 0.001 0.190 0.100 0.009
MINIMUM 0.000 0.000 0.100 0.002
DATE OF MINIMUM 1988-02-04 1988-01-06 1988-04-28 1988-04-13
10TH PERCENTILE 0.001 0.000 0.100 0.005
MEDIAN 0.001 0.001 0.100 0.006
90TH PERCENTILE 0.001 0.001 0.500 0.014
MAXIMUM 0.001 0.002 1.170 0.061
DATE OF MAXIMUM 1988-01-25 1989-07-18 1988-01-06 1989-04-03
STANDARD DEVIATION 0.000 0.000 0.231 0.010
Pb INST
DISS DISCHG
82101 97160
mg/L Pb m3/S
NO. OF L-FLAGGED VALUES 70 0
NO. OF G-FLAGGED VALUES 0 0
NO. OF UNFLAGGED VALUES 9 24
MEAN 0.005 101.0
MINIMUM 0.001 32.8
DATE OF MINIMUM 1988-02-23 1988-06-22
10TH PERCENTILE 0.002 40.5
MEDIAN 0.005 65.4
90TH PERCENTILE 0.005 208.1
MAXIMUM 0.011 462.6
DATE OF MAXIMUM 1988-12-30 1988-01-25
STANDARD DEVIATION 0.001 95.8
STATION - RIVER DEE STATION NO. 027005
COUNTRY - UNITED KINGDOM DEPTH(M) 3.0
LOCATION - OCT. 0 LAT. 53/08/04 LONG. 002/52/12 ELEVATION(M) 4.0
REGIONAL CENTRE - EURA WATER TYPE RIVER
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-04-08 TO 1990-12-13
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP NO3NO2 NH3 PERCENT
COND DO SAT
02041 02061 07105 07556 08001
us/cm deg C mg/L N mg/L N PERCENT
NO. OF L-FLAGGED VALUES 0 0 0 11 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 83 77 84 73 74
MEAN 268. 12.1 1.65 0.09 91.
MINIMUM 143. 3.3 0.77 0.01 67.
DATE OF MINIMUM 1988-08-30 1988-11-22 1989-08-08 1988-10-03 1989-10-11
10TH PERCENTILE 167. 5.5 0.91 0.01 80.
MEDIAN 273. 12.5 1.53 0.06 89.
90TH PERCENTILE 360. 17.2 2.51 0.18 99.
MAXIMUM 465. 20.5 4.19 0.45 163.
DATE OF MAXIMUM 1990-08-24 1989-07-19 1990-12-10 1990-12-10 1990-09-19
STANDARD DEVIATION 73. 4.6 0.66 0.08 12.
O2 BOD pH SUSP SOL Na
DISS 105 DEG DISS
08101 08201 10301 10401 11102
mg/L O2 mg/L O2 pH UNITS mg/L mg/L Na
NO. OF L-FLAGGED VALUES 0 3 0 3 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 74 76 79 80 29
MEAN 9.9 1. 7.6 8. 20.
MINIMUM 6.9 1. 7.0 1. 11.
DATE OF MINIMUM 1989-10-11 1988-07-25 1989-11-14 1989-01-06 1989-03-03
10TH PERCENTILE 8.0 1. 7.3 2. 13.
MEDIAN 9.7 1. 7.6 6. 17.
90TH PERCENTILE 12.0 2. 7.9 14. 27.
MAXIMUM 16.9 6. 8.5 86. 51.
DATE OF MAXIMUM 1990-09-19 1989-12-05 1989-05-09 1989-03-03 1988-07-25
STANDARD DEVIATION 1.6 1. 0.2 10. 8.
Mg Si SULPHATE Cl DDT
DISS REACTIVE DISS TOTAL
12102 14101 16304 17203 18002
mg/L Mg mg/LSiO2 mg/L SO4 mg/L Cl ug/L
NO. OF L-FLAGGED VALUES 0 0 0 0 51
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 29 28 16 66 0
MEAN 4. 3.95 29. 31. 0.003
MINIMUM 2. 1.01 19. 9. 0.003
DATE OF MINIMUM 1988-08-30 1988-05-10 1988-10-03 1988-10-05 1988-07-07
10TH PERCENTILE 3. 2.77 20. 19. 0.003
MEDIAN 4. 3.98 26. 28. 0.003
90TH PERCENTILE 7. 4.75 43. 43. 0.003
MAXIMUM 9. 5.26 49. 67. 0.003
DATE OF MAXIMUM 1988-07-25 1989-03-13 1988-04-27 1990-12-10 1990-12-13
STANDARD DEVIATION 2. 0.90 10. 10. 0.000
LINDANE ALDRIN DIELDRIN K Ca
DISS DISS
18070 18130 18150 19102 20103
ug/L ug/L ug/L mg/L K mg/L Ca
NO. OF L-FLAGGED VALUES 52 51 51 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 3 0 0 29 29
MEAN 0.004 0.003 0.003 2.7 21.786
MINIMUM 0.003 0.003 0.003 1.6 11.800
DATE OF MINIMUM 1988-07-27 1988-07-07 1988-07-07 1988-10-03 1988-08-30
10TH PERCENTILE 0.003 0.003 0.003 1.8 13.500
MEDIAN 0.003 0.003 0.003 2.2 19.900
90TH PERCENTILE 0.003 0.003 0.003 4.3 34.910
MAXIMUM 0.042 0.003 0.003 6.6 45.000
DATE OF MAXIMUM 1988-11-22 1990-12-13 1990-12-13 1988-07-25 1988-04-14
STANDARD DEVIATION 0.005 0.000 0.000 1.1 8.377
Cr Cr Fe Fe Ni
TOTAL DISS TOTAL DISS TOTAL
24002 24052 26004 26104 28001
mg/L Cr mg/L Cr mg/L Fe mg/L Fe mg/L Ni
NO. OF L-FLAGGED VALUES 62 5 0 0 49
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 1 1 65 6 3
MEAN 0.010 0.008 0.30 0.09 0.011
MINIMUM 0.010 0.000 0.06 0.00 0.010
DATE OF MINIMUM 1988-04-08 1990-05-10 1990-10-12 1990-05-10 1988-04-08
10TH PERCENTILE 0.010 0.19 0.010
MEDIAN 0.010 0.010 0.28 0.11 0.010
90TH PERCENTILE 0.010 0.42 0.010
MAXIMUM 0.010 0.010 1.04 0.13 0.033
DATE OF MAXIMUM 1990-12-10 1990-11-15 1989-03-03 1990-07-27 1989-04-11
STANDARD DEVIATION 0.000 0.004 0.14 0.05 0.004
Ni Cu Cu Zn As
DISS TOTAL DISS TOTAL TOTAL
28101 29006 29106 30004 33007
mg/L Ni mg/L Cu mg/L Cu mg/L Zn mg/L As
NO. OF L-FLAGGED VALUES 5 58 9 4 10
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 1 18 0 79 0
MEAN 0.008 0.005 0.005 0.017 0.003
MINIMUM 0.000 0.005 0.005 0.005 0.002
DATE OF MINIMUM 1990-05-10 1988-04-08 1990-03-09 1988-07-27 1989-09-14
10TH PERCENTILE 0.005 0.006 0.002
MEDIAN 0.010 0.005 0.005 0.012 0.002
90TH PERCENTILE 0.006 0.025 0.005
MAXIMUM 0.010 0.011 0.005 0.160 0.005
DATE OF MAXIMUM 1990-11-15 1990-03-28 1990-11-15 1990-07-18 1989-10-11
STANDARD DEVIATION 0.004 0.001 0.000 0.022 0.001
As Cd Ba Pb Pb
DISS TOTAL TOTAL TOTAL DISS
33104 48001 80016 82001 82101
mg/L As mg/L Cd ug/L Hg mg/L Pb mg/L Pb
NO. OF L-FLAGGED VALUES 9 79 25 70 6
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 0 3 2 6 0
MEAN 0.002 0.001 0.096 0.011 0.010
MINIMUM 0.002 0.001 0.000 0.010 0.010
DATE OF MINIMUM 1990-03-13 1988-04-08 1990-02-16 1988-04-08 1990-05-10
10TH PERCENTILE 0.001 0.100 0.010
MEDIAN 0.002 0.001 0.100 0.010 0.010
90TH PERCENTILE 0.001 0.100 0.010
MAXIMUM 0.002 0.002 0.100 0.046 0.010
DATE OF MAXIMUM 1990-11-15 1989-01-06 1990-01-16 1990-12-10 1990-11-15
STANDARD DEVIATION 0.000 0.000 0.019 0.005 0.000
INST
DISCHG
97160
m3/S
NO. OF L-FLAGGED VALUES 0
NO. OF G-FLAGGED VALUES 0
NO. OF UNFLAGGED VALUES 68
MEAN 27.0
MINIMUM 9.4
DATE OF MINIMUM 1989-10-11
10TH PERCENTILE 11.7
MEDIAN 17.0
90TH PERCENTILE 55.6
MAXIMUM 101.8
DATE OF MAXIMUM 1990-02-06
STANDARD DEVIATION 20.9
STATION - RIVER LEVEN STATION NO. 027006
COUNTRY - UNITED KINGDOM DEPTH(M) 0.9
LOCATION - OCT. 0 LAT. 55/58/14 LONG. 004/34/56 ELEVATION(M) 4.3
REGIONAL CENTRE - EURA WATER TYPE RIVER
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-01-29 TO 1990-12-25
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP NO3NO2 NH3 PERCENT
COND DO SAT
02041 02061 07105 07556 08001
us/cm deg C mg/L N mg/L N PERCENT
NO. OF L-FLAGGED VALUES 0 0 0 12 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 32 37 33 22 33
MEAN 68. 10.1 0.30 0.03 97.
MINIMUM 58. 5.0 0.10 0.01 90.
DATE OF MINIMUM 1989-01-20 1988-01-29 1990-10-23 1990-12-05 1988-11-04
10TH PERCENTILE 61. 5.0 0.15 0.02 92.
MEDIAN 67. 9.0 0.29 0.02 95.
90TH PERCENTILE 75. 15.0 0.47 0.06 101.
MAXIMUM 85. 22.0 0.60 0.11 114.
DATE OF MAXIMUM 1990-01-26 1989-06-20 1988-12-09 1990-08-27 1989-05-15
STANDARD DEVIATION 6. 4.1 0.13 0.02 5.
O2 BOD ALK pH SUSP SOL
DISS TOTAL 105 DEG
08101 08201 10101 10301 10401
mg/L O2 mg/L O2 mg/L pH UNITS mg/L
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 33 32 34 37
MEAN 10.8 2. 13.53 7.0 4.
MINIMUM 9.4 1. 6.00 6.4 1.
DATE OF MINIMUM 1988-06-29 1988-11-04 1988-01-29 1990-03-22 1988-06-02
10TH PERCENTILE 9.6 1. 12.00 6.8 1.
MEDIAN 11.0 2. 13.50 7.1 2.
90TH PERCENTILE 12.0 3. 17.00 7.3 8.
MAXIMUM 12.1 3. 18.00 7.5 13.
DATE OF MAXIMUM 1988-04-28 1990-07-29 1989-10-17 1989-05-15 1988-12-09
STANDARD DEVIATION 0.9 1. 2.45 0.2 3.
Cl DDT LINDANE ALDRIN DIELDRIN
DISS TOTAL
17203 18002 18070 18130 18150
mg/L Cl ug/L ug/L ug/L ug/L
NO. OF L-FLAGGED VALUES 0 2 2 3 1
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 26 0 0 0 1
MEAN 9. 0.002 0.002 0.002 0.002
MINIMUM 6.
DATE OF MINIMUM 1988-06-02
10TH PERCENTILE 6.
MEDIAN 9.
90TH PERCENTILE 12.
MAXIMUM 14.
DATE OF MAXIMUM 1989-03-21
STANDARD DEVIATION 2.
Cr Cr Ni Ni Cu
TOTAL DISS TOTAL DISS TOTAL
24002 24052 28001 28101 29006
mg/L Cr mg/L Cr mg/L Ni mg/L Ni mg/L Cu
NO. OF L-FLAGGED VALUES 19 19 17 15 6
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 11 10 13 14 24
MEAN 0.001 0.001 0.002 0.002 0.002
MINIMUM 0.001 0.001 0.001 0.001 0.001
DATE OF MINIMUM 1988-02-29 1988-01-29 1990-04-03 1990-01-26 1990-04-03
10TH PERCENTILE 0.001 0.001 0.001 0.001 0.001
MEDIAN 0.001 0.001 0.002 0.002 0.002
90TH PERCENTILE 0.002 0.001 0.002 0.002 0.002
MAXIMUM 0.002 0.002 0.005 0.003 0.004
DATE OF MAXIMUM 1988-10-07 1990-12-05 1990-10-10 1990-10-10 1990-10-10
STANDARD DEVIATION 0.000 0.000 0.001 0.000 0.001
Cu Zn Zn Cd Cd
DISS TOTAL DISS TOTAL DISS
29106 30004 30104 48001 48101
mg/L Cu mg/L Zn mg/L Zn mg/L Cd mg/L Cd
NO. OF L-FLAGGED VALUES 13 0 1 32 18
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 16 30 27 4 7
MEAN 0.002 0.008 0.005 0.001 0.001
MINIMUM 0.001 0.003 0.001 0.000 0.001
DATE OF MINIMUM 1989-06-20 1990-09-12 1989-03-21 1990-02-09 1988-01-29
10TH PERCENTILE 0.001 0.004 0.002 0.000 0.001
MEDIAN 0.002 0.006 0.004 0.001 0.001
90TH PERCENTILE 0.002 0.014 0.008 0.001 0.001
MAXIMUM 0.003 0.035 0.014 0.005 0.001
DATE OF MAXIMUM 1990-10-10 1990-03-15 1990-01-26 1990-03-15 1990-12-05
STANDARD DEVIATION 0.000 0.006 0.003 0.001 0.000
Ba Pb Pb INST
TOTAL TOTAL DISS DISCHG
80016 82001 82101 97160
ug/L Hg mg/L Pb mg/L Pb m3/S
NO. OF L-FLAGGED VALUES 19 14 19 0
NO. OF G-FLAGGED VALUES 0 0 0 0
NO. OF UNFLAGGED VALUES 0 16 10 52
MEAN 0.004 0.003 0.002 51.9
MINIMUM 0.001 0.001 0.001 6.6
DATE OF MINIMUM 1990-08-30 1990-04-03 1990-06-07 1988-06-29
10TH PERCENTILE 0.001 0.002 0.002 7.9
MEDIAN 0.004 0.002 0.002 42.8
90TH PERCENTILE 0.004 0.006 0.003 124.4
MAXIMUM 0.004 0.009 0.007 143.4
DATE OF MAXIMUM 1990-07-30 1990-10-10 1990-10-10 1990-02-19
STANDARD DEVIATION 0.001 0.002 0.001 45.1
STATION - RIVER MERSEY STATION NO. 027007
COUNTRY - UNITED KINGDOM DEPTH(M) 4.0
LOCATION - OCT. 0 LAT. 53/23/13 LONG. 002/34/35 ELEVATION(M) 5.6
REGIONAL CENTRE - EURA WATER TYPE RIVER
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-01-06 TO 1990-12-27
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP NO3NO2 NH3 PERCENT
COND DO SAT
02041 02061 07105 07556 08001
us/cm deg C mg/L N mg/L N PERCENT
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 205 201 196 197 189
MEAN 647. 11.6 3.03 4.09 65.
MINIMUM 287. 2.0 0.28 0.15 16.
DATE OF MINIMUM 1990-12-27 1988-03-02 1988-06-29 1989-04-05 1990-07-25
10TH PERCENTILE 424. 6.0 2.14 1.51 42.
MEDIAN 652. 11.0 3.09 3.84 67.
90TH PERCENTILE 842. 18.0 3.82 7.16 82.
MAXIMUM 1694. 24.5 7.14 10.70 133.
DATE OF MAXIMUM 1989-09-20 1989-07-24 1988-11-09 1989-09-20 1989-08-07
STANDARD DEVIATION 175. 4.7 0.77 2.17 17.
O2 BOD ALK pH SUSP SOL
DISS TOTAL 105 DEG
08101 08201 10101 10301 10401
mg/L O2 mg/L O2 mg/L pH UNITS mg/L
NO. OF L-FLAGGED VALUES 0 2 0 0 1
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 193 203 184 205 203
MEAN 7.1 5. 115.99 7.3 19.
MINIMUM 1.5 1. 52.00 6.8 2.
DATE OF MINIMUM 1990-07-25 1990-11-28 1990-11-28 1988-08-17 1988-07-27
10TH PERCENTILE 4.3 3. 81.40 7.0 6.
MEDIAN 7.3 5. 116.50 7.3 11.
90TH PERCENTILE 9.6 7. 153.00 7.6 38.
MAXIMUM 12.1 16. 184.00 8.5 345.
DATE OF MAXIMUM 1989-08-07 1989-12-13 1988-05-25 1990-11-28 1989-09-20
STANDARD DEVIATION 2.0 2. 27.96 0.2 29.
Na Mg Si Cl DDT
DISS DISS REACTIVE DISS TOTAL
11102 12102 14101 17203 18002
mg/L Na mg/L Mg mg/LSiO2 mg/L Cl ug/L
NO. OF L-FLAGGED VALUES 0 0 0 0 37
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 4 160 130 195 7
MEAN 89. 8. 8.22 79. 0.021
MINIMUM 58. 4. 4.81 28. 0.006
DATE OF MINIMUM 1990-04-25 1990-05-09 1990-05-09 1989-11-13 1989-01-04
10TH PERCENTILE 6. 6.30 42. 0.006
MEDIAN 96. 8. 8.40 80. 0.006
90TH PERCENTILE 10. 9.65 117. 0.056
MAXIMUM 105. 11. 11.45 191. 0.060
DATE OF MAXIMUM 1990-04-11 1989-07-26 1988-11-02 1989-07-10 1988-02-03
STANDARD DEVIATION 21. 1. 1.23 30. 0.019
LINDANE ALDRIN DIELDRIN K Ca
DISS DISS
18070 18130 18150 19102 20103
ug/L ug/L ug/L mg/L K mg/L Ca
NO. OF L-FLAGGED VALUES 4 37 37 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 41 7 7 4 161
MEAN 0.053 0.007 0.010 11.2 46.132
MINIMUM 0.005 0.001 0.002 9.1 29.500
DATE OF MINIMUM 1990-03-27 1989-01-04 1989-01-04 1990-04-25 1990-01-03
10TH PERCENTILE 0.013 0.001 0.002 38.000
MEDIAN 0.044 0.001 0.002 11.5 45.000
90TH PERCENTILE 0.092 0.014 0.024 52.000
MAXIMUM 0.220 0.050 0.050 12.6 115.000
DATE OF MAXIMUM 1990-09-12 1990-11-07 1990-11-07 1990-04-18 1990-04-30
STANDARD DEVIATION 0.043 0.011 0.012 1.6 10.045
Cr Cr Fe Ni Ni
TOTAL DISS TOTAL TOTAL DISS
24002 24052 26004 28001 28101
mg/L Cr mg/L Cr mg/L Fe mg/L Ni mg/L Ni
NO. OF L-FLAGGED VALUES 49 4 0 0 10
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 108 6 157 157 1
MEAN 0.010 0.009 0.83 0.010 0.029
MINIMUM 0.005 0.005 0.13 0.002 0.017
DATE OF MINIMUM 1988-04-06 1990-02-26 1989-07-12 1990-03-14 1990-04-30
10TH PERCENTILE 0.006 0.005 0.45 0.006 0.018
MEDIAN 0.010 0.010 0.74 0.009 0.030
90TH PERCENTILE 0.015 0.010 1.20 0.013 0.030
MAXIMUM 0.033 0.011 4.20 0.020 0.030
DATE OF MAXIMUM 1990-06-06 1990-05-29 1989-09-20 1989-12-13 1990-03-27
STANDARD DEVIATION 0.004 0.002 0.48 0.003 0.004
Cu Cu Zn As Cd
TOTAL DISS TOTAL DISS TOTAL
29006 29106 30004 33104 48001
mg/L Cu mg/L Cu mg/L Zn mg/L As mg/L Cd
NO. OF L-FLAGGED VALUES 0 10 0 0 21
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 157 1 161 9 136
MEAN 0.009 0.015 0.040 0.002 0.000
MINIMUM 0.003 0.015 0.007 0.001 0.000
DATE OF MINIMUM 1990-05-23 1990-01-16 1989-11-29 1990-02-26 1988-01-06
10TH PERCENTILE 0.005 0.015 0.023 0.000
MEDIAN 0.008 0.015 0.036 0.002 0.000
90TH PERCENTILE 0.013 0.015 0.060 0.000
MAXIMUM 0.063 0.018 0.150 0.003 0.006
DATE OF MAXIMUM 1989-06-14 1990-04-30 1989-09-20 1990-07-18 1990-04-25
STANDARD DEVIATION 0.006 0.001 0.019 0.001 0.001
Cd Ba Hg Pb Pb
DISS TOTAL DISS TOTAL DISS
48101 80011 80111 82001 82101
mg/L Cd ug/L Hg ug/L Hg mg/L Pb mg/L Pb
NO. OF L-FLAGGED VALUES 4 67 2 5 11
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 4 87 6 152 0
MEAN 0.002 0.190 0.056 0.010 0.050
MINIMUM 0.000 0.010 0.050 0.003 0.050
DATE OF MINIMUM 1988-02-01 1990-01-03 1988-01-18 1988-06-01 1990-01-16
10TH PERCENTILE 0.060 0.004 0.050
MEDIAN 0.002 0.100 0.050 0.007 0.050
90TH PERCENTILE 0.170 0.015 0.050
MAXIMUM 0.005 7.430 0.100 0.070 0.050
DATE OF MAXIMUM 1990-03-27 1990-05-23 1988-07-04 1989-12-13 1990-11-07
STANDARD DEVIATION 0.003 0.641 0.018 0.010 0.000
INST
DISCHG
97160
m3/S
NO. OF L-FLAGGED VALUES 0
NO. OF G-FLAGGED VALUES 0
NO. OF UNFLAGGED VALUES 188
MEAN 29.2
MINIMUM 2.4
DATE OF MINIMUM 1989-10-04
10TH PERCENTILE 7.7
MEDIAN 18.4
90TH PERCENTILE 74.4
MAXIMUM 134.0
DATE OF MAXIMUM 1990-12-27
STANDARD DEVIATION 27.4
STATION - RIVER TWEED ABOVE GALAFOOT STATION NO. 027008
COUNTRY - UNITED KINGDOM DEPTH(M) 0.6
LOCATION - OCT. 0 LAT. 55/36/12 LONG. 002/46/43 ELEVATION(M) 91.7
REGIONAL CENTRE - EURA WATER TYPE RIVER
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-01-05 TO 1990-12-17
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP NO3NO2 NH3 PERCENT
COND DO SAT
02041 02061 07105 07554 08001
us/cm deg C mg/L N mg/L N PERCENT
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 149 149 149 149 149
MEAN 142. 9.9 0.97 0.07 101.
MINIMUM 78. 0.0 0.20 0.01 75.
DATE OF MINIMUM 1988-10-26 1989-12-04 1989-10-17 1990-01-15 1989-11-29
10TH PERCENTILE 118. 4.0 0.60 0.02 86.
MEDIAN 144. 9.5 0.95 0.06 96.
90TH PERCENTILE 168. 17.0 1.30 0.11 127.
MAXIMUM 192. 21.5 2.70 0.18 159.
DATE OF MAXIMUM 1988-08-24 1989-07-20 1989-12-20 1990-05-18 1989-05-17
STANDARD DEVIATION 21. 5.1 0.34 0.04 16.
O2 BOD pH SUSP SOL Si
DISS 105 DEG REACTIVE
08101 08201 10301 10401 14101
mg/L O2 mg/L O2 pH UNITS mg/L 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 149 147 149 146 149
MEAN 11.4 2. 7.7 7. 3.98
MINIMUM 9.2 1. 7.0 1. 0.10
DATE OF MINIMUM 1988-10-26 1989-10-06 1988-07-28 1988-02-16 1990-05-03
10TH PERCENTILE 9.7 1. 7.2 1. 1.49
MEDIAN 11.3 2. 7.6 3. 4.07
90TH PERCENTILE 13.2 3. 8.4 9. 6.10
MAXIMUM 17.2 4. 9.2 294. 9.63
DATE OF MAXIMUM 1988-04-14 1990-09-25 1989-05-17 1988-02-01 1988-12-02
STANDARD DEVIATION 1.4 1. 0.5 28. 1.86
SULPHATE Cl Cr Fe Ni
DISS DISS DISS DISS
16309 17204 24052 26104 28101
mg/L SO4 mg/L Cl mg/L Cr mg/L Fe mg/L Ni
NO. OF L-FLAGGED VALUES 0 0 37 0 44
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 149 149 12 49 5
MEAN 8. 10. 0.001 0.07 0.001
MINIMUM 6. 4. 0.001 0.01 0.001
DATE OF MINIMUM 1988-08-15 1988-10-26 1990-01-03 1990-06-13 1990-01-03
10TH PERCENTILE 7. 8. 0.001 0.02 0.001
MEDIAN 8. 10. 0.001 0.06 0.001
90TH PERCENTILE 9. 12. 0.001 0.11 0.001
MAXIMUM 17. 18. 0.004 0.39 0.003
DATE OF MAXIMUM 1988-07-28 1990-02-14 1990-01-15 1990-09-25 1990-02-27
STANDARD DEVIATION 1. 2. 0.000 0.07 0.000
Cu Cu Zn As Cd
TOTAL DISS DISS DISS DISS
29006 29106 30104 33104 48101
mg/L Cu mg/L Cu mg/L Zn mg/L As mg/L Cd
NO. OF L-FLAGGED VALUES 0 3 3 7 49
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 49 82 46 9 0
MEAN 0.006 0.006 0.009 0.001 0.001
MINIMUM 0.001 0.001 0.001 0.001 0.000
DATE OF MINIMUM 1989-03-08 1990-03-12 1990-01-26 1990-09-06 1990-01-03
10TH PERCENTILE 0.002 0.002 0.002 0.001 0.000
MEDIAN 0.004 0.005 0.007 0.001 0.001
90TH PERCENTILE 0.009 0.009 0.015 0.002 0.001
MAXIMUM 0.025 0.028 0.022 0.004 0.001
DATE OF MAXIMUM 1989-08-29 1988-06-27 1990-11-12 1990-12-13 1990-12-17
STANDARD DEVIATION 0.004 0.004 0.005 0.001 0.001
Hg Pb INST
DISS DISS DISCHG
80111 82101 97160
ug/L Hg mg/L Pb m3/S
NO. OF L-FLAGGED VALUES 6 29 0
NO. OF G-FLAGGED VALUES 0 0 0
NO. OF UNFLAGGED VALUES 10 20 149
MEAN 0.144 0.001 36.3
MINIMUM 0.100 0.001 5.8
DATE OF MINIMUM 1990-09-06 1990-01-03 1989-08-01
10TH PERCENTILE 0.100 0.001 9.3
MEDIAN 0.100 0.001 22.5
90TH PERCENTILE 0.200 0.002 75.5
MAXIMUM 0.400 0.002 298.7
DATE OF MAXIMUM 1990-12-05 1990-08-23 1988-02-01
STANDARD DEVIATION 0.081 0.000 40.7
STATION - RIVER CARRON STATION NO. 027009
COUNTRY - UNITED KINGDOM DEPTH(M) 0.8
LOCATION - OCT. 0 LAT. 57/26/18 LONG. 005/26/51 ELEVATION(M) 3.5
REGIONAL CENTRE - EURA WATER TYPE RIVER
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-01-20 TO 1990-12-06
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP NO3NO2 NH3 PERCENT
COND DO SAT
02041 02061 07105 07555 08001
us/cm deg C mg/L N mg/L N PERCENT
NO. OF L-FLAGGED VALUES 0 0 0 6 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 36 36 36 30 36
MEAN 42. 8.7 0.05 0.01 95.
MINIMUM 28. 2.7 0.03 0.00 82.
DATE OF MINIMUM 1988-10-04 1989-12-11 1989-05-02 1988-09-07 1990-12-06
10TH PERCENTILE 30. 4.0 0.03 0.00 89.
MEDIAN 42. 8.4 0.05 0.00 95.
90TH PERCENTILE 55. 13.9 0.07 0.01 100.
MAXIMUM 67. 17.0 0.12 0.02 110.
DATE OF MAXIMUM 1989-03-03 1990-07-18 1990-07-18 1988-02-17 1989-07-07
STANDARD DEVIATION 10. 4.0 0.02 0.00 6.
O2 BOD ALK pH SUSP SOL
DISS TOTAL 105 DEG
08101 08201 10101 10301 10401
mg/L O2 mg/L O2 mg/L pH UNITS mg/L
NO. OF L-FLAGGED VALUES 0 0 1 0 3
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 36 36 35 36 33
MEAN 11.1 1. 3.54 6.5 1.
MINIMUM 9.2 0. 0.40 5.5 0.
DATE OF MINIMUM 1990-07-18 1988-06-14 1989-01-11 1990-07-18 1990-01-23
10TH PERCENTILE 9.5 0. 0.86 6.0 1.
MEDIAN 11.3 1. 3.60 6.5 1.
90TH PERCENTILE 12.3 1. 5.85 6.9 2.
MAXIMUM 13.2 2. 7.80 7.3 3.
DATE OF MAXIMUM 1989-12-11 1989-03-03 1990-04-18 1990-04-18 1989-01-11
STANDARD DEVIATION 1.0 0. 1.98 0.4 1.
Na Mg SULPHATE Cl K
DISS DISS DISS DISS
11102 12103 16309 17204 19102
mg/L Na mg/L Mg mg/L SO4 mg/L Cl mg/L K
NO. OF L-FLAGGED VALUES 0 0 7 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 35 35 28 36 35
MEAN 5. 1. 1. 10. 0.3
MINIMUM 3. 1. 0. 5. 0.2
DATE OF MINIMUM 1988-08-23 1988-07-28 1990-07-18 1988-07-28 1990-08-23
10TH PERCENTILE 3. 1. 0. 6. 0.2
MEDIAN 4. 1. 1. 8. 0.3
90TH PERCENTILE 7. 1. 2. 15. 0.4
MAXIMUM 8. 1. 8. 20. 0.5
DATE OF MAXIMUM 1989-03-03 1989-03-03 1990-05-24 1989-03-03 1989-03-03
STANDARD DEVIATION 1. 0. 1. 4. 0.1
Ca Cr Ni Cu Zn
DISS TOTAL TOTAL TOTAL TOTAL
20101 24002 28001 29006 30004
mg/L Ca mg/L Cr mg/L Ni mg/L Cu mg/L Zn
NO. OF L-FLAGGED VALUES 0 34 35 28 15
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 35 2 0 8 21
MEAN 1.926 0.001 0.008 0.001 0.002
MINIMUM 1.200 0.001 0.008 0.001 0.001
DATE OF MINIMUM 1988-01-20 1988-01-20 1988-01-20 1988-01-20 1988-01-20
10TH PERCENTILE 1.300 0.001 0.008 0.001 0.001
MEDIAN 1.900 0.001 0.008 0.001 0.001
90TH PERCENTILE 2.700 0.001 0.008 0.001 0.003
MAXIMUM 3.000 0.011 0.008 0.008 0.024
DATE OF MAXIMUM 1990-07-18 1988-11-02 1990-12-06 1990-04-18 1990-05-24
STANDARD DEVIATION 0.532 0.002 0.000 0.001 0.004
As Cd Ba Pb INST
TOTAL TOTAL TOTAL TOTAL DISCHG
33007 48001 80016 82001 97160
mg/L As mg/L Cd ug/L Hg mg/L Pb m3/S
NO. OF L-FLAGGED VALUES 34 29 29 34 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 1 7 6 1 36
MEAN 0.003 0.000 0.023 0.002 10.3
MINIMUM 0.001 0.000 0.010 0.001 0.8
DATE OF MINIMUM 1990-05-24 1988-01-20 1988-06-14 1990-07-18 1988-05-24
10TH PERCENTILE 0.003 0.000 0.019 0.002 1.4
MEDIAN 0.003 0.000 0.020 0.002 6.6
90TH PERCENTILE 0.003 0.001 0.020 0.002 29.4
MAXIMUM 0.003 0.006 0.125 0.002 49.5
DATE OF MAXIMUM 1990-04-18 1988-11-02 1989-09-26 1990-06-20 1990-10-16
STANDARD DEVIATION 0.000 0.001 0.018 0.000 12.3
STATION - LOUGH NEAGH STATION NO. 027010
COUNTRY - UNITED KINGDOM DEPTH(M) 10.0
LOCATION - OCT. 0 LAT. 54/37/05 LONG. 006/25/50 ELEVATION(M) 12.0
REGIONAL CENTRE - EURA WATER TYPE LAKE
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-01-04 TO 1990-12-17
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
INTEG ELEC NO3NO2 pH SUSP SOL
SAMPLE COND 105 DEG
00190 02041 07105 10302 10401
N/A us/cm mg/L N pH UNITS mg/L
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 153 153 107 153 149
MEAN 1. 297. 0.52 8.3 9.
MINIMUM 1. 278. 0.01 7.5 3.
DATE OF MINIMUM 1988-01-04 1988-03-21 1989-06-19 1988-07-04 1989-07-24
10TH PERCENTILE 1. 282. 0.02 7.9 5.
MEDIAN 1. 298. 0.38 8.3 9.
90TH PERCENTILE 1. 311. 1.32 8.8 14.
MAXIMUM 1. 334. 2.20 9.1 22.
DATE OF MAXIMUM 1990-12-17 1990-04-18 1990-03-20 1990-05-14 1989-02-07
STANDARD DEVIATION 0. 11. 0.49 0.3 4.
Si SILICATE P
REACTIVE REACTIVE TOTAL
14101 14105 15405
mg/LSiO2 mg/LSiO2 mg/L P
NO. OF L-FLAGGED VALUES 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0
NO. OF UNFLAGGED VALUES 145 152 152
MEAN 2.87 0.054 0.098
MINIMUM 0.02 0.000 0.017
DATE OF MINIMUM 1988-05-16 1988-01-18 1990-04-23
10TH PERCENTILE 0.09 0.000 0.053
MEDIAN 2.23 0.100 0.104
90TH PERCENTILE 6.42 0.100 0.133
MAXIMUM 8.48 0.100 0.158
DATE OF MAXIMUM 1989-12-04 1988-02-15 1990-02-28
STANDARD DEVIATION 2.50 0.050 0.030
STATION - RUTLAND WATER RESERVOIR STATION NO. 027011
COUNTRY - UNITED KINGDOM DEPTH(M) 10.7
LOCATION - OCT. 0 LAT. 52/39/25 LONG. 000/37/29 ELEVATION(M) 83.2
REGIONAL CENTRE - EURA WATER TYPE LAKE
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-01-01 TO 1990-12-12
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP NO3NO2 NH3 PERCENT
COND DO SAT
02041 02061 07105 07556 08001
us/cm deg C mg/L N mg/L N PERCENT
NO. OF L-FLAGGED VALUES 0 0 0 3 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 13 20 22 19 21
MEAN 761. 11.8 1.93 0.06 83.
MINIMUM 695. 4.0 1.02 0.04 55.
DATE OF MINIMUM 1990-05-15 1990-01-08 1989-09-14 1989-09-12 1989-10-10
10TH PERCENTILE 706. 5.0 1.09 0.04 58.
MEDIAN 762. 13.0 1.38 0.05 85.
90TH PERCENTILE 788. 16.5 3.62 0.08 91.
MAXIMUM 822. 18.0 4.00 0.14 97.
DATE OF MAXIMUM 1990-11-14 1990-08-22 1990-04-04 1990-04-04 1990-04-04
STANDARD DEVIATION 31. 4.5 1.01 0.02 10.
O2 BOD ALK pH SUSP SOL
DISS TOTAL 105 DEG
08101 08201 10101 10301 10401
mg/L O2 mg/L O2 mg/L pH UNITS mg/L
NO. OF L-FLAGGED VALUES 0 6 0 0 1
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 22 16 13 22 12
MEAN 8.9 1. 158.92 8.2 13.
MINIMUM 5.7 1. 125.00 7.7 2.
DATE OF MINIMUM 1989-10-10 1989-10-17 1990-10-16 1990-08-22 1990-05-15
10TH PERCENTILE 6.1 1. 128.00 7.8 2.
MEDIAN 8.8 1. 167.00 8.3 5.
90TH PERCENTILE 10.9 2. 179.80 8.5 18.
MAXIMUM 11.5 3. 182.00 8.7 110.
DATE OF MAXIMUM 1990-04-04 1989-10-03 1990-05-15 1989-09-28 1990-03-14
STANDARD DEVIATION 1.5 1. 19.46 0.3 30.
Na Si SULPHATE Cl DDT
DISS REACTIVE DISS TOTAL
11102 14101 16304 17203 18002
mg/L Na mg/LSiO2 mg/L SO4 mg/L Cl ug/L
NO. OF L-FLAGGED VALUES 0 1 0 0 3
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 13 3 12 22 1
MEAN 39. 1.69 148. 60. 0.003
MINIMUM 36. 0.20 139. 55. 0.001
DATE OF MINIMUM 1990-04-04 1990-04-04 1989-09-12 1990-02-21 1990-05-15
10TH PERCENTILE 36. 139. 55.
MEDIAN 39. 2.12 146. 59. 0.003
90TH PERCENTILE 42. 159. 65.
MAXIMUM 43. 2.32 169. 76. 0.005
DATE OF MAXIMUM 1990-11-14 1989-09-12 1990-11-14 1990-07-25 1990-02-20
STANDARD DEVIATION 2. 1.00 9. 5. 0.002
LINDANE ALDRIN DIELDRIN K Cr
DISS TOTAL
18070 18130 18150 19102 24002
ug/L ug/L ug/L mg/L K mg/L Cr
NO. OF L-FLAGGED VALUES 0 3 0 0 1
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 4 1 4 13 4
MEAN 0.007 0.002 0.002 7.2 0.004
MINIMUM 0.004 0.001 0.001 6.5 0.001
DATE OF MINIMUM 1989-12-06 1990-05-15 1990-05-15 1990-07-25 1990-08-22
10TH PERCENTILE 6.6
MEDIAN 0.008 0.002 0.002 7.4 0.003
90TH PERCENTILE 7.6
MAXIMUM 0.010 0.002 0.002 7.8 0.012
DATE OF MAXIMUM 1990-05-15 1990-02-20 1990-02-20 1990-11-14 1990-06-27
STANDARD DEVIATION 0.002 0.001 0.001 0.4 0.005
Fe Fe Ni Cu Zn
TOTAL DISS TOTAL TOTAL TOTAL
26004 26104 28001 29006 30004
mg/L Fe mg/L Fe mg/L Ni mg/L Cu mg/L Zn
NO. OF L-FLAGGED VALUES 0 2 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 3 0 5 5 5
MEAN 0.08 0.05 0.004 0.006 0.007
MINIMUM 0.001 0.001 0.001
DATE OF MINIMUM 1989-09-12 1989-09-12 1989-09-12
10TH PERCENTILE
MEDIAN 0.003 0.005 0.005
90TH PERCENTILE
MAXIMUM 0.006 0.013 0.013
DATE OF MAXIMUM 1990-06-27 1990-08-22 1990-08-22
STANDARD DEVIATION 0.002 0.005 0.005
As Cd Ba Pb
TOTAL TOTAL TOTAL TOTAL
33007 48001 80011 82001
mg/L As mg/L Cd ug/L Hg mg/L Pb
NO. OF L-FLAGGED VALUES 0 0 2 0
NO. OF G-FLAGGED VALUES 0 0 0 0
NO. OF UNFLAGGED VALUES 4 5 3 5
MEAN 0.002 0.000 0.138 0.001
MINIMUM 0.001 0.000 0.050 0.001
DATE OF MINIMUM 1990-03-14 1989-09-12 1989-09-12 1989-09-12
10TH PERCENTILE
MEDIAN 0.001 0.000 0.050 0.001
90TH PERCENTILE
MAXIMUM 0.004 0.000 0.300 0.003
DATE OF MAXIMUM 1989-09-12 1990-11-14 1990-06-27 1990-08-22
STANDARD DEVIATION 0.002 0.000 0.122 0.001
STATION - TUNSTALL RESERVOIR STATION NO. 027012
COUNTRY - UNITED KINGDOM DEPTH(M) 16.9
LOCATION - OCT. 0 LAT. 54/45/43 LONG. 001/53/56 ELEVATION(M) 219.5
REGIONAL CENTRE - EURA WATER TYPE LAKE
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-02-24 TO 1990-12-13
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP NO3NO2 NH3 PERCENT
COND DO SAT
02041 02062 07105 07555 08001
us/cm deg C mg/L N mg/L N PERCENT
NO. OF L-FLAGGED VALUES 0 0 4 11 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 12 32 30 24 32
MEAN 108. 10.5 0.70 0.16 94.
MINIMUM 82. 2.0 0.01 0.00 79.
DATE OF MINIMUM 1988-08-22 1988-02-24 1989-08-16 1988-07-25 1988-08-23
10TH PERCENTILE 83. 4.1 0.10 0.01 85.
MEDIAN 105. 11.0 0.49 0.06 93.
90TH PERCENTILE 134. 16.0 1.45 0.39 100.
MAXIMUM 135. 19.5 2.85 0.95 127.
DATE OF MAXIMUM 1990-08-20 1989-07-18 1990-11-20 1989-05-23 1989-05-23
STANDARD DEVIATION 18. 4.8 0.64 0.21 9.
O2 BOD ALK pH SUSP SOL
DISS TOTAL 105 DEG
08101 08201 10102 10301 10401
mg/L O2 mg/L O2 mg/L pH UNITS mg/L
NO. OF L-FLAGGED VALUES 0 4 1 0 6
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 32 30 11 38 28
MEAN 10.5 1. 18.63 7.2 6.
MINIMUM 8.5 0. 10.00 6.1 0.
DATE OF MINIMUM 1988-08-23 1990-05-16 1990-12-13 1990-12-13 1989-05-23
10TH PERCENTILE 8.6 1. 10.40 6.6 1.
MEDIAN 10.4 1. 16.50 7.3 4.
90TH PERCENTILE 12.1 2. 25.80 7.6 16.
MAXIMUM 12.3 3. 39.60 7.9 32.
DATE OF MAXIMUM 1990-01-16 1990-04-17 1989-08-16 1989-07-18 1990-09-17
STANDARD DEVIATION 1.3 1. 8.28 0.4 7.
Na Mg Si SULPHATE Cl
DISS DISS REACTIVE DISS
11102 12102 14101 16303 17203
mg/L Na mg/L Mg mg/LSiO2 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 4 5 4 9 27
MEAN 4. 3. 3.11 28. 16.
MINIMUM 3. 2. 1.79 14. 8.
DATE OF MINIMUM 1988-08-23 1990-05-21 1988-02-24 1990-09-25 1988-02-24
10TH PERCENTILE 9.
MEDIAN 4. 3. 3.12 23. 17.
90TH PERCENTILE 21.
MAXIMUM 7. 6. 4.39 84. 22.
DATE OF MAXIMUM 1990-05-21 1988-02-24 1988-08-23 1990-11-05 1990-12-13
STANDARD DEVIATION 2. 1. 1.26 22. 4.
DDT LINDANE ALDRIN DIELDRIN K
TOTAL DISS
18002 18070 18130 18150 19102
ug/L ug/L ug/L ug/L mg/L K
NO. OF L-FLAGGED VALUES 10 5 9 9 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 0 5 0 1 4
MEAN 0.001 0.002 0.001 0.001 1.1
MINIMUM 0.001 0.000 0.000 0.000 1.0
DATE OF MINIMUM 1988-02-24 1988-02-24 1988-02-24 1988-02-24 1988-05-18
10TH PERCENTILE 0.001 0.000 0.000
MEDIAN 0.001 0.001 0.000 0.000 1.0
90TH PERCENTILE 0.002 0.005 0.002
MAXIMUM 0.003 0.010 0.010 0.010 1.3
DATE OF MAXIMUM 1990-02-20 1990-12-13 1990-12-13 1990-12-13 1988-02-24
STANDARD DEVIATION 0.001 0.003 0.003 0.003 0.1
Ca Cr Cr Fe Fe
DISS TOTAL DISS TOTAL DISS
20103 24002 24052 26004 26104
mg/L Ca mg/L Cr mg/L Cr mg/L Fe mg/L Fe
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 5 3 4 14 12
MEAN 9.520 0.000 0.000 0.36 0.29
MINIMUM 6.400 0.000 0.14 0.12
DATE OF MINIMUM 1988-02-24 1988-02-24 1990-05-16 1988-08-22
10TH PERCENTILE 0.15 0.12
MEDIAN 9.600 0.000 0.39 0.20
90TH PERCENTILE 0.53 0.54
MAXIMUM 13.600 0.001 0.57 0.57
DATE OF MAXIMUM 1989-08-16 1988-11-24 1989-02-21 1989-02-21
STANDARD DEVIATION 2.689 0.001 0.15 0.17
Ni Ni Cu Cu Zn
TOTAL DISS TOTAL DISS TOTAL
28001 28101 29006 29106 30004
mg/L Ni mg/L Ni mg/L Cu mg/L Cu mg/L Zn
NO. OF L-FLAGGED VALUES 0 0 4 3 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 1 1 2 1 6
MEAN 0.049 0.034 0.030 0.017 0.018
MINIMUM 0.005 0.005 0.004
DATE OF MINIMUM 1988-02-24 1988-02-24 1988-05-18
10TH PERCENTILE
MEDIAN 0.005 0.005 0.012
90TH PERCENTILE
MAXIMUM 0.110 0.053 0.055
DATE OF MAXIMUM 1988-11-24 1988-11-24 1990-05-16
STANDARD DEVIATION 0.043 0.024 0.020
Zn As As Cd Cd
DISS TOTAL DISS TOTAL DISS
30104 33007 33104 48001 48101
mg/L Zn mg/L As mg/L As mg/L Cd mg/L Cd
NO. OF L-FLAGGED VALUES 0 3 3 1 4
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 4 0 0 6 3
MEAN 0.009 0.005 0.005 0.000 0.000
MINIMUM 0.004 0.000 0.000
DATE OF MINIMUM 1988-05-18 1988-02-24 1988-02-24
10TH PERCENTILE
MEDIAN 0.005 0.000 0.000
90TH PERCENTILE
MAXIMUM 0.020 0.001 0.001
DATE OF MAXIMUM 1988-02-24 1989-08-16 1989-08-16
STANDARD DEVIATION 0.008 0.000 0.000
Ba Hg Pb Pb
TOTAL DISS TOTAL DISS
80011 80111 82001 82101
ug/L Hg ug/L Hg mg/L Pb mg/L Pb
NO. OF L-FLAGGED VALUES 4 3 2 2
NO. OF G-FLAGGED VALUES 0 0 0 0
NO. OF UNFLAGGED VALUES 5 2 1 1
MEAN 0.174 0.118 0.003 0.003
MINIMUM 0.100 0.100
DATE OF MINIMUM 1988-02-24 1988-02-24
10TH PERCENTILE
MEDIAN 0.112 0.100
90TH PERCENTILE
MAXIMUM 0.410 0.150
DATE OF MAXIMUM 1990-11-05 1990-11-20
STANDARD DEVIATION 0.117 0.025
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