STATISTICS FOR THE UNITED KINGDOM
STATISTICS FOR THE UNITED KINGDOM
GEMS/WATER - STATISTICAL SUMMARY BY STATION 2002-01-30 PAGE 772
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 - 1994-01-01 TO 1996-12-31
PERIOD OF RECORD FROM - 1994-01-05 TO 1996-12-03
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 6 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 36 57 36 34 39
MEAN 629. 13.1 7.59 0.26 95.
MINIMUM 514. 5.0 5.07 0.03 40.
DATE OF MINIMUM 1995-02-13 1995-12-12 1995-07-03 1995-05-10 1995-07-03
10TH PERCENTILE 556. 6.2 5.81 0.03 73.
MEDIAN 618. 12.5 7.43 0.19 94.
90TH PERCENTILE 701. 20.9 9.54 0.50 124.
MAXIMUM 755. 22.4 11.65 1.72 142.
DATE OF MAXIMUM 1996-09-27 1995-08-07 1994-04-14 1996-12-03 1995-05-10
STANDARD DEVIATION 56. 5.2 1.45 0.29 22.
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 9 0 0 2
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 39 30 35 40 36
MEAN 10.2 2. 187.09 8.1 14.
MINIMUM 3.6 1. 99.00 7.5 3.
DATE OF MINIMUM 1995-07-03 1994-11-17 1996-12-03 1994-01-05 1995-08-29
10TH PERCENTILE 7.1 1. 146.00 7.7 5.
MEDIAN 9.8 2. 196.00 8.0 11.
90TH PERCENTILE 13.4 5. 211.50 8.5 28.
MAXIMUM 19.9 8. 231.00 9.0 60.
DATE OF MAXIMUM 1994-06-13 1994-05-16 1996-07-31 1995-05-10 1995-02-13
STANDARD DEVIATION 2.9 2. 27.66 0.4 13.
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 35 35 36 36 38
MEAN 38. 6. 10.79 70. 57.
MINIMUM 18. 5. 0.20 59. 34.
DATE OF MINIMUM 1995-02-13 1994-05-16 1994-05-16 1994-04-14 1995-02-13
10TH PERCENTILE 24. 5. 1.86 61. 40.
MEDIAN 33. 6. 11.85 68. 53.
90TH PERCENTILE 54. 6. 15.69 81. 70.
MAXIMUM 62. 6. 16.10 98. 147.
DATE OF MAXIMUM 1996-07-31 1996-07-31 1995-11-06 1996-02-28 1994-04-14
STANDARD DEVIATION 12. 0. 4.84 8. 19.
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 36 7 35 35 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 0 29 0 0 35
MEAN 0.005 0.010 0.005 0.005 7.5
MINIMUM 0.001 0.005 0.001 0.001 4.3
DATE OF MINIMUM 1994-01-22 1994-04-14 1994-01-22 1994-01-22 1994-01-22
10TH PERCENTILE 0.005 0.005 0.005 0.005 4.8
MEDIAN 0.005 0.009 0.005 0.005 7.1
90TH PERCENTILE 0.005 0.015 0.005 0.005 10.4
MAXIMUM 0.010 0.045 0.010 0.015 12.3
DATE OF MAXIMUM 1996-06-11 1996-07-31 1996-06-11 1996-06-11 1996-11-01
STANDARD DEVIATION 0.001 0.007 0.001 0.002 2.2
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 13 27 0 9
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 35 24 9 36 27
MEAN 95.429 0.002 0.001 0.43 0.06
MINIMUM 65.000 0.001 0.001 0.10 0.02
DATE OF MINIMUM 1996-12-03 1994-05-16 1994-04-14 1994-08-23 1994-07-13
10TH PERCENTILE 82.500 0.001 0.001 0.12 0.02
MEDIAN 97.000 0.001 0.001 0.26 0.05
90TH PERCENTILE 104.000 0.002 0.002 1.07 0.10
MAXIMUM 114.000 0.004 0.005 1.76 0.18
DATE OF MAXIMUM 1995-04-03 1994-01-22 1994-11-17 1996-02-28 1996-12-03
STANDARD DEVIATION 9.372 0.001 0.001 0.43 0.04
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 16 15 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 21 21 38 38 38
MEAN 0.005 0.004 0.006 0.005 0.022
MINIMUM 0.002 0.001 0.004 0.003 0.009
DATE OF MINIMUM 1994-04-14 1994-04-14 1994-01-22 1994-04-14 1994-11-17
10TH PERCENTILE 0.003 0.003 0.004 0.004 0.011
MEDIAN 0.005 0.005 0.006 0.005 0.018
90TH PERCENTILE 0.005 0.005 0.007 0.006 0.037
MAXIMUM 0.008 0.007 0.013 0.007 0.072
DATE OF MAXIMUM 1996-07-31 1996-07-31 1995-10-23 1996-11-01 1994-10-12
STANDARD DEVIATION 0.001 0.001 0.002 0.001 0.013
Zn As As Cd Ba
DISS TOTAL DISS TOTAL TOTAL
30104 33007 33104 48001 80011
mg/L Zn mg/L As mg/L As mg/L Cd ug/L Hg
NO. OF L-FLAGGED VALUES 0 19 21 23 23
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 36 17 14 14 14
MEAN 0.011 0.001 0.001 0.000 0.016
MINIMUM 0.006 0.001 0.001 0.000 0.010
DATE OF MINIMUM 1994-05-16 1994-11-08 1994-11-08 1994-01-22 1994-07-13
10TH PERCENTILE 0.007 0.001 0.001 0.000 0.010
MEDIAN 0.010 0.001 0.001 0.000 0.010
90TH PERCENTILE 0.017 0.002 0.002 0.000 0.031
MAXIMUM 0.021 0.002 0.002 0.001 0.047
DATE OF MAXIMUM 1994-10-12 1994-10-12 1994-10-12 1994-11-28 1994-11-08
STANDARD DEVIATION 0.004 0.001 0.001 0.000 0.010
Pb Pb
TOTAL DISS
82001 82101
mg/L Pb mg/L Pb
NO. OF L-FLAGGED VALUES 1 11
NO. OF G-FLAGGED VALUES 0 0
NO. OF UNFLAGGED VALUES 36 25
MEAN 0.003 0.001
MINIMUM 0.001 0.000
DATE OF MINIMUM 1994-06-13 1994-06-13
10TH PERCENTILE 0.001 0.000
MEDIAN 0.003 0.001
90TH PERCENTILE 0.006 0.001
MAXIMUM 0.009 0.003
DATE OF MAXIMUM 1995-01-18 1994-01-22
STANDARD DEVIATION 0.002 0.001
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 - 1994-01-01 TO 1996-12-31
PERIOD OF RECORD FROM - 1994-01-05 TO 1996-12-20
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 1 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 116 116 115 115 115
MEAN 12.2 7.72 0.24 89. 9.6
MINIMUM 2.0 0.40 0.02 64. 6.0
DATE OF MINIMUM 1996-02-15 1995-07-06 1994-05-11 1996-07-28 1996-07-28
10TH PERCENTILE 7.0 5.70 0.09 78. 7.3
MEDIAN 12.0 7.30 0.20 89. 9.6
90TH PERCENTILE 19.0 10.52 0.41 100. 11.8
MAXIMUM 22.5 14.00 1.60 120. 13.6
DATE OF MAXIMUM 1995-08-15 1994-09-16 1994-09-16 1994-05-11 1994-04-05
STANDARD DEVIATION 4.6 2.00 0.18 9. 1.7
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 1 0 0 1 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 114 29 116 114 43
MEAN 3. 219.86 8.1 21. 33.
MINIMUM 1. 113.00 7.9 3. 15.
DATE OF MINIMUM 1994-11-23 1995-07-06 1994-01-16 1995-11-20 1995-07-06
10TH PERCENTILE 2. 182.90 8.0 5. 19.
MEDIAN 2. 229.00 8.1 11. 33.
90TH PERCENTILE 4. 243.40 8.3 50. 49.
MAXIMUM 9. 252.00 8.6 144. 52.
DATE OF MAXIMUM 1994-09-16 1996-06-26 1996-06-26 1994-12-08 1995-08-30
STANDARD DEVIATION 1. 27.92 0.1 27. 11.
Mg Si SULPHATE Cl DDT
DISS REACTIVE DISS TOTAL
12103 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 54
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 55 42 42 116 0
MEAN 7. 8.89 59. 41. 0.002
MINIMUM 4. 1.30 32. 22. 0.000
DATE OF MINIMUM 1996-11-23 1995-07-06 1995-07-06 1995-01-23 1994-02-10
10TH PERCENTILE 5. 4.12 46. 28. 0.000
MEDIAN 7. 8.85 58. 39. 0.002
90TH PERCENTILE 8. 12.14 71. 54. 0.003
MAXIMUM 14. 14.60 83. 116. 0.006
DATE OF MAXIMUM 1995-07-06 1995-07-26 1995-08-15 1995-08-15 1995-07-06
STANDARD DEVIATION 1. 2.97 11. 13. 0.002
LINDANE ALDRIN DIELDRIN K Ca
DISS DISS
18070 18130 18150 19102 20101
ug/L ug/L ug/L mg/L K mg/L Ca
NO. OF L-FLAGGED VALUES 4 53 35 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 49 0 18 43 55
MEAN 0.008 0.002 0.002 6.7 106.764
MINIMUM 0.001 0.001 0.001 3.7 40.000
DATE OF MINIMUM 1995-12-07 1994-02-10 1994-02-10 1995-07-06 1995-07-06
10TH PERCENTILE 0.003 0.001 0.001 4.5 91.500
MEDIAN 0.007 0.002 0.002 7.0 110.000
90TH PERCENTILE 0.014 0.003 0.005 8.4 119.500
MAXIMUM 0.024 0.006 0.006 9.3 123.000
DATE OF MAXIMUM 1996-04-24 1995-07-06 1995-07-06 1996-10-08 1996-12-20
STANDARD DEVIATION 0.005 0.001 0.001 1.6 13.347
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 18 21 1 25 21
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 39 22 42 18 36
MEAN 0.002 0.002 0.25 0.07 0.007
MINIMUM 0.001 0.001 0.05 0.05 0.002
DATE OF MINIMUM 1994-05-11 1995-03-27 1995-09-15 1995-03-27 1994-03-07
10TH PERCENTILE 0.001 0.001 0.09 0.05 0.003
MEDIAN 0.001 0.001 0.17 0.05 0.005
90TH PERCENTILE 0.002 0.003 0.56 0.09 0.014
MAXIMUM 0.011 0.016 1.30 0.32 0.017
DATE OF MAXIMUM 1996-10-07 1996-12-05 1996-04-24 1996-11-23 1995-12-04
STANDARD DEVIATION 0.002 0.003 0.25 0.05 0.004
Ni Cu Cu Zn Zn
DISS TOTAL DISS TOTAL DISS
28101 29006 29106 30004 30104
mg/L Ni mg/L Cu mg/L Cu mg/L Zn mg/L Zn
NO. OF L-FLAGGED VALUES 20 0 1 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 23 57 42 57 42
MEAN 0.008 0.005 0.005 0.028 0.020
MINIMUM 0.005 0.002 0.002 0.008 0.006
DATE OF MINIMUM 1995-03-27 1994-03-07 1995-07-06 1994-11-23 1995-03-27
10TH PERCENTILE 0.005 0.003 0.003 0.011 0.007
MEDIAN 0.005 0.004 0.004 0.021 0.013
90TH PERCENTILE 0.014 0.006 0.006 0.041 0.045
MAXIMUM 0.017 0.018 0.020 0.304 0.069
DATE OF MAXIMUM 1995-12-04 1994-09-16 1996-12-05 1995-10-12 1996-06-26
STANDARD DEVIATION 0.004 0.003 0.003 0.040 0.016
Cd Cd Ba Hg Pb
TOTAL DISS TOTAL DISS TOTAL
48001 48101 80011 80111 82001
mg/L Cd mg/L Cd ug/L Hg ug/L Hg mg/L Pb
NO. OF L-FLAGGED VALUES 0 30 33 29 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 57 12 24 13 57
MEAN 0.001 0.000 0.036 0.022 0.008
MINIMUM 0.000 0.000 0.010 0.010 0.001
DATE OF MINIMUM 1994-02-10 1995-07-06 1996-01-30 1996-01-30 1994-10-03
10TH PERCENTILE 0.000 0.000 0.010 0.010 0.001
MEDIAN 0.000 0.000 0.020 0.020 0.002
90TH PERCENTILE 0.000 0.000 0.050 0.030 0.009
MAXIMUM 0.026 0.001 0.330 0.170 0.185
DATE OF MAXIMUM 1995-10-12 1996-06-26 1996-12-20 1996-12-20 1995-10-12
STANDARD DEVIATION 0.003 0.000 0.063 0.025 0.025
Pb
DISS
82101
mg/L Pb
NO. OF L-FLAGGED VALUES 26
NO. OF G-FLAGGED VALUES 0
NO. OF UNFLAGGED VALUES 16
MEAN 0.005
MINIMUM 0.002
DATE OF MINIMUM 1995-03-27
10TH PERCENTILE 0.002
MEDIAN 0.002
90TH PERCENTILE 0.009
MAXIMUM 0.038
DATE OF MAXIMUM 1996-06-26
STANDARD DEVIATION 0.006
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 - 1994-01-01 TO 1996-12-31
PERIOD OF RECORD FROM - 1994-01-10 TO 1996-12-13
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 19 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 76 76 74 57 75
MEAN 168. 11.1 2.78 0.04 100.
MINIMUM 109. 2.2 1.20 0.02 90.
DATE OF MINIMUM 1995-02-01 1996-01-29 1994-09-21 1994-04-19 1994-07-14
10TH PERCENTILE 131. 5.9 1.80 0.02 93.
MEDIAN 162. 10.4 2.60 0.03 100.
90TH PERCENTILE 211. 16.8 3.92 0.07 106.
MAXIMUM 259. 20.8 5.20 0.14 113.
DATE OF MAXIMUM 1996-07-26 1995-08-04 1996-02-08 1995-03-17 1995-09-05
STANDARD DEVIATION 33. 4.4 0.89 0.02 5.
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 3 0 0 23
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 75 73 76 76 53
MEAN 11.1 2. 39.59 7.8 10.
MINIMUM 8.2 1. 22.00 7.5 2.
DATE OF MINIMUM 1995-07-28 1994-04-19 1995-02-01 1995-10-10 1994-04-26
10TH PERCENTILE 9.2 1. 27.60 7.6 3.
MEDIAN 11.1 2. 39.00 7.8 4.
90TH PERCENTILE 12.5 2. 53.00 8.0 19.
MAXIMUM 14.0 4. 60.00 8.9 136.
DATE OF MAXIMUM 1996-02-08 1996-06-20 1995-08-17 1995-04-06 1995-02-01
STANDARD DEVIATION 1.2 1. 9.63 0.2 20.
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 9 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 76 76 76 67 76
MEAN 12. 4. 3.52 13. 16.
MINIMUM 6. 3. 1.40 5. 11.
DATE OF MINIMUM 1995-02-01 1994-09-21 1996-05-09 1994-11-14 1996-05-20
10TH PERCENTILE 8. 3. 2.16 9. 13.
MEDIAN 11. 4. 3.65 12. 16.
90TH PERCENTILE 17. 5. 4.80 19. 18.
MAXIMUM 26. 5. 5.60 35. 25.
DATE OF MAXIMUM 1996-07-26 1996-07-26 1996-02-02 1996-07-26 1996-02-08
STANDARD DEVIATION 4. 1. 0.99 5. 2.
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 23 11 24 12 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 0 13 0 0 76
MEAN 0.001 0.004 0.002 0.001 1.9
MINIMUM 0.000 0.001 0.001 0.001 1.3
DATE OF MINIMUM 1994-01-10 1994-01-10 1994-01-10 1994-01-10 1994-03-09
10TH PERCENTILE 0.000 0.001 0.001 0.001 1.5
MEDIAN 0.000 0.004 0.002 0.001 1.8
90TH PERCENTILE 0.004 0.006 0.004 0.001 2.5
MAXIMUM 0.005 0.026 0.005 0.001 3.2
DATE OF MAXIMUM 1995-06-13 1996-05-20 1995-06-13 1994-11-24 1996-06-20
STANDARD DEVIATION 0.002 0.005 0.001 0.000 0.4
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 72 61 0 14
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 76 4 2 24 62
MEAN 17.053 0.001 0.001 0.30 0.07
MINIMUM 10.000 0.001 0.001 0.08 0.05
DATE OF MINIMUM 1994-09-21 1994-01-10 1994-01-10 1996-03-08 1994-02-07
10TH PERCENTILE 13.000 0.001 0.001 0.09 0.05
MEDIAN 17.000 0.001 0.001 0.19 0.07
90TH PERCENTILE 21.000 0.001 0.001 0.64 0.10
MAXIMUM 24.000 0.003 0.006 0.84 0.15
DATE OF MAXIMUM 1996-07-26 1995-02-01 1995-04-05 1996-11-20 1994-10-26
STANDARD DEVIATION 3.306 0.000 0.001 0.23 0.02
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 58 57 3 55 1
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 18 6 73 7 75
MEAN 0.004 0.004 0.002 0.002 0.008
MINIMUM 0.001 0.001 0.000 0.001 0.002
DATE OF MINIMUM 1994-01-18 1994-03-07 1996-02-02 1994-01-10 1994-04-26
10TH PERCENTILE 0.001 0.001 0.001 0.001 0.002
MEDIAN 0.005 0.005 0.001 0.002 0.005
90TH PERCENTILE 0.005 0.005 0.003 0.002 0.018
MAXIMUM 0.006 0.005 0.017 0.002 0.033
DATE OF MAXIMUM 1995-02-01 1996-12-13 1995-02-21 1996-12-13 1996-01-09
STANDARD DEVIATION 0.002 0.001 0.002 0.000 0.008
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 33 7 37 32 63
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 28 17 39 44 0
MEAN 0.007 0.001 0.002 0.000 0.000
MINIMUM 0.002 0.001 0.000 0.000 0.000
DATE OF MINIMUM 1994-08-31 1994-01-10 1994-01-10 1994-01-10 1994-01-10
10TH PERCENTILE 0.003 0.001 0.000 0.000 0.000
MEDIAN 0.005 0.001 0.001 0.000 0.000
90TH PERCENTILE 0.014 0.003 0.005 0.000 0.001
MAXIMUM 0.033 0.005 0.005 0.000 0.001
DATE OF MAXIMUM 1996-02-20 1995-12-04 1995-12-05 1996-12-13 1995-06-13
STANDARD DEVIATION 0.006 0.001 0.002 0.000 0.000
Ba Pb Pb
TOTAL TOTAL DISS
80016 82001 82101
ug/L Hg mg/L Pb mg/L Pb
NO. OF L-FLAGGED VALUES 56 21 63
NO. OF G-FLAGGED VALUES 0 0 0
NO. OF UNFLAGGED VALUES 1 55 0
MEAN 0.016 0.001 0.002
MINIMUM 0.010 0.000 0.001
DATE OF MINIMUM 1996-01-09 1995-01-06 1994-01-10
10TH PERCENTILE 0.010 0.000 0.001
MEDIAN 0.020 0.000 0.002
90TH PERCENTILE 0.020 0.001 0.002
MAXIMUM 0.020 0.004 0.002
DATE OF MAXIMUM 1995-12-05 1995-03-17 1996-12-13
STANDARD DEVIATION 0.005 0.001 0.000
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 - 1994-01-01 TO 1996-12-31
PERIOD OF RECORD FROM - 1994-01-04 TO 1996-12-18
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP NO3NO2 NH3 O2
COND DISS
02041 02061 07105 07556 08102
us/cm deg C mg/L N mg/L N mg/L O2
NO. OF L-FLAGGED VALUES 0 0 0 15 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 126 180 171 156 175
MEAN 928. 12.0 9.08 0.26 10.6
MINIMUM 510. 1.0 3.72 0.03 4.6
DATE OF MINIMUM 1994-12-29 1994-02-15 1995-07-28 1995-05-10 1995-08-16
10TH PERCENTILE 650. 5.0 6.71 0.04 8.4
MEDIAN 950. 11.0 9.07 0.15 10.8
90TH PERCENTILE 1158. 20.0 11.30 0.55 12.2
MAXIMUM 1280. 24.0 12.80 2.56 15.0
DATE OF MAXIMUM 1996-10-03 1994-07-12 1996-01-02 1996-01-03 1994-02-15
STANDARD DEVIATION 190. 5.6 1.73 0.31 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 1 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 168 170 172 125 40
MEAN 3. 161.09 8.0 18. 88.
MINIMUM 1. 104.00 7.6 3. 25.
DATE OF MINIMUM 1995-08-24 1996-02-14 1996-11-21 1994-10-15 1994-12-29
10TH PERCENTILE 2. 132.00 7.8 5. 39.
MEDIAN 3. 163.00 8.0 11. 94.
90TH PERCENTILE 4. 182.00 8.3 30. 124.
MAXIMUM 6. 324.00 8.7 248. 136.
DATE OF MAXIMUM 1996-05-15 1995-09-06 1994-05-03 1995-01-26 1996-10-03
STANDARD DEVIATION 1. 21.99 0.2 28. 32.
Mg Si SULPHATE Cl DDT
DISS REACTIVE DISS TOTAL
12102 14101 16302 17203 18002
mg/L Mg mg/LSiO2 mg/L SO4 mg/L Cl ug/L
NO. OF L-FLAGGED VALUES 0 0 0 0 45
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 40 38 40 171 0
MEAN 22. 7.99 165. 127. 0.005
MINIMUM 14. 0.23 77. 29. 0.005
DATE OF MINIMUM 1994-12-29 1996-05-15 1994-12-29 1995-07-28 1994-01-08
10TH PERCENTILE 16. 4.21 111. 62. 0.005
MEDIAN 23. 8.49 176. 127. 0.005
90TH PERCENTILE 26. 11.12 200. 183. 0.005
MAXIMUM 27. 12.70 212. 216. 0.005
DATE OF MAXIMUM 1996-05-15 1996-02-05 1996-05-15 1995-06-28 1996-12-18
STANDARD DEVIATION 4. 2.65 38. 43. 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 16 45 45 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 29 0 0 40 40
MEAN 0.016 0.005 0.005 11.2 99.443
MINIMUM 0.005 0.005 0.005 6.1 67.700
DATE OF MINIMUM 1994-01-08 1994-01-08 1994-01-08 1995-02-14 1994-12-29
10TH PERCENTILE 0.005 0.005 0.005 6.9 85.500
MEDIAN 0.014 0.005 0.005 11.6 101.000
90TH PERCENTILE 0.025 0.005 0.005 14.7 115.000
MAXIMUM 0.087 0.005 0.005 15.8 123.000
DATE OF MAXIMUM 1996-10-25 1996-12-18 1996-12-18 1996-10-03 1996-05-15
STANDARD DEVIATION 0.016 0.000 0.000 3.0 12.161
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 0 2 0 17 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 70 37 93 29 70
MEAN 0.004 0.003 0.25 0.06 0.027
MINIMUM 0.002 0.001 0.09 0.01 0.006
DATE OF MINIMUM 1994-07-12 1994-06-22 1995-06-28 1994-07-12 1994-01-04
10TH PERCENTILE 0.002 0.001 0.11 0.03 0.011
MEDIAN 0.003 0.002 0.17 0.04 0.027
90TH PERCENTILE 0.005 0.005 0.48 0.07 0.038
MAXIMUM 0.011 0.006 1.41 0.44 0.056
DATE OF MAXIMUM 1995-12-20 1996-03-11 1995-03-02 1995-12-20 1996-10-03
STANDARD DEVIATION 0.002 0.001 0.24 0.07 0.011
Ni Cu Cu Zn Zn
DISS TOTAL DISS TOTAL DISS
28101 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 40 70 107 137 39
MEAN 0.026 0.010 0.008 0.047 0.032
MINIMUM 0.008 0.006 0.005 0.024 0.014
DATE OF MINIMUM 1995-02-14 1995-01-03 1994-12-01 1994-07-12 1994-12-29
10TH PERCENTILE 0.009 0.008 0.006 0.031 0.020
MEDIAN 0.026 0.010 0.008 0.043 0.030
90TH PERCENTILE 0.040 0.012 0.011 0.064 0.047
MAXIMUM 0.055 0.021 0.023 0.131 0.062
DATE OF MAXIMUM 1996-10-03 1996-01-10 1995-12-20 1996-11-21 1996-09-27
STANDARD DEVIATION 0.012 0.003 0.002 0.017 0.011
As Cd Cd Ba Pb
TOTAL TOTAL DISS TOTAL TOTAL
33007 48001 48101 80016 82001
mg/L As mg/L Cd mg/L Cd ug/L Hg mg/L Pb
NO. OF L-FLAGGED VALUES 0 8 6 31 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 49 62 33 17 70
MEAN 0.002 0.000 0.000 0.035 0.007
MINIMUM 0.001 0.000 0.000 0.020 0.002
DATE OF MINIMUM 1994-02-15 1994-01-04 1994-01-08 1995-02-14 1994-06-22
10TH PERCENTILE 0.001 0.000 0.000 0.020 0.002
MEDIAN 0.002 0.000 0.000 0.023 0.004
90TH PERCENTILE 0.003 0.000 0.000 0.088 0.011
MAXIMUM 0.004 0.001 0.001 0.148 0.089
DATE OF MAXIMUM 1995-08-12 1995-01-26 1995-12-20 1996-09-27 1995-01-26
STANDARD DEVIATION 0.001 0.000 0.000 0.028 0.011
Pb INST
DISS DISCHG
82101 97160
mg/L Pb m3/S
NO. OF L-FLAGGED VALUES 0 0
NO. OF G-FLAGGED VALUES 0 0
NO. OF UNFLAGGED VALUES 40 86
MEAN 0.001 55.3
MINIMUM 0.001 23.3
DATE OF MINIMUM 1994-01-08 1996-07-09
10TH PERCENTILE 0.001 24.3
MEDIAN 0.001 38.0
90TH PERCENTILE 0.001 115.3
MAXIMUM 0.012 238.4
DATE OF MAXIMUM 1995-12-20 1995-02-14
STANDARD DEVIATION 0.002 45.1
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 - 1994-01-01 TO 1996-12-31
PERIOD OF RECORD FROM - 1994-01-11 TO 1996-12-18
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 5 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 58 40 60 42 37
MEAN 262. 10.3 2.42 0.10 93.
MINIMUM 0. 2.7 0.53 0.01 68.
DATE OF MINIMUM 1996-07-16 1995-01-05 1995-08-24 1994-02-18 1995-07-13
10TH PERCENTILE 153. 4.0 1.34 0.01 85.
MEDIAN 273. 10.9 2.14 0.06 92.
90TH PERCENTILE 350. 17.4 3.50 0.20 100.
MAXIMUM 413. 18.7 12.65 0.48 121.
DATE OF MAXIMUM 1996-05-20 1995-06-27 1996-02-27 1995-06-27 1996-05-17
STANDARD DEVIATION 80. 4.8 1.57 0.10 8.
O2 BOD pH SUSP SOL Cl
DISS 105 DEG DISS
08101 08201 10301 10401 17203
mg/L O2 mg/L O2 pH UNITS mg/L mg/L Cl
NO. OF L-FLAGGED VALUES 0 4 0 4 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 37 33 37 42 1
MEAN 10.5 1. 7.6 11. 45.
MINIMUM 6.5 0. 7.1 2.
DATE OF MINIMUM 1995-07-13 1994-04-06 1995-07-13 1996-03-05
10TH PERCENTILE 8.9 0. 7.2 2.
MEDIAN 10.6 1. 7.6 4.
90TH PERCENTILE 12.1 2. 7.9 16.
MAXIMUM 13.7 3. 8.1 143.
DATE OF MAXIMUM 1996-05-17 1995-07-13 1996-05-17 1994-11-22
STANDARD DEVIATION 1.5 1. 0.3 22.
DDT LINDANE ALDRIN DIELDRIN Cr
TOTAL TOTAL
18002 18070 18130 18150 24002
ug/L ug/L ug/L ug/L mg/L Cr
NO. OF L-FLAGGED VALUES 46 45 46 46 30
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 0 2 0 0 22
MEAN 0.005 0.005 0.005 0.005 0.001
MINIMUM 0.005 0.005 0.005 0.005 0.001
DATE OF MINIMUM 1994-02-07 1994-02-07 1994-02-07 1994-02-07 1995-03-22
10TH PERCENTILE 0.005 0.005 0.005 0.005 0.001
MEDIAN 0.005 0.005 0.005 0.005 0.001
90TH PERCENTILE 0.005 0.005 0.005 0.005 0.002
MAXIMUM 0.005 0.013 0.005 0.005 0.003
DATE OF MAXIMUM 1996-12-18 1996-06-04 1996-12-18 1996-12-18 1995-10-19
STANDARD DEVIATION 0.000 0.001 0.000 0.000 0.001
Cr Fe Fe Ni Ni
DISS TOTAL DISS TOTAL DISS
24052 26004 26104 28001 28101
mg/L Cr mg/L Fe mg/L Fe mg/L Ni mg/L Ni
NO. OF L-FLAGGED VALUES 30 0 0 36 25
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 6 19 37 16 12
MEAN 0.002 0.20 0.12 0.004 0.004
MINIMUM 0.001 0.12 0.05 0.003 0.003
DATE OF MINIMUM 1995-03-22 1995-12-07 1996-01-17 1994-02-10 1994-01-19
10TH PERCENTILE 0.001 0.12 0.07 0.003 0.003
MEDIAN 0.001 0.16 0.10 0.003 0.003
90TH PERCENTILE 0.002 0.25 0.19 0.005 0.005
MAXIMUM 0.005 0.62 0.23 0.012 0.011
DATE OF MAXIMUM 1994-05-26 1995-07-13 1995-07-13 1995-03-22 1995-03-22
STANDARD DEVIATION 0.001 0.11 0.05 0.002 0.001
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 29 25 0 0 51
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 23 10 59 17 1
MEAN 0.002 0.002 0.016 0.013 0.002
MINIMUM 0.001 0.001 0.002 0.002 0.001
DATE OF MINIMUM 1996-07-16 1996-05-17 1996-07-16 1996-07-29 1995-12-07
10TH PERCENTILE 0.001 0.001 0.009 0.008 0.001
MEDIAN 0.002 0.002 0.015 0.013 0.002
90TH PERCENTILE 0.003 0.002 0.023 0.018 0.002
MAXIMUM 0.004 0.004 0.052 0.019 0.002
DATE OF MAXIMUM 1996-05-15 1995-07-13 1996-01-08 1996-12-16 1995-11-10
STANDARD DEVIATION 0.001 0.001 0.007 0.004 0.001
As Cd Cd Ba Pb
DISS TOTAL DISS TOTAL TOTAL
33104 48001 48101 80016 82001
mg/L As mg/L Cd mg/L Cd ug/L Hg mg/L Pb
NO. OF L-FLAGGED VALUES 36 57 19 36 10
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 1 2 0 9 4
MEAN 0.002 0.000 0.000 0.013 0.003
MINIMUM 0.001 0.000 0.000 0.008 0.002
DATE OF MINIMUM 1995-12-07 1994-01-11 1995-06-27 1994-02-22 1994-02-22
10TH PERCENTILE 0.001 0.000 0.000 0.008 0.002
MEDIAN 0.002 0.000 0.000 0.008 0.002
90TH PERCENTILE 0.002 0.000 0.000 0.019 0.004
MAXIMUM 0.002 0.000 0.000 0.121 0.009
DATE OF MAXIMUM 1995-10-19 1996-12-16 1996-12-16 1996-11-08 1994-12-14
STANDARD DEVIATION 0.000 0.000 0.000 0.018 0.002
Pb INST
DISS DISCHG
82101 97160
mg/L Pb m3/S
NO. OF L-FLAGGED VALUES 37 0
NO. OF G-FLAGGED VALUES 0 0
NO. OF UNFLAGGED VALUES 0 36
MEAN 0.002 32.6
MINIMUM 0.002 8.3
DATE OF MINIMUM 1994-01-19 1995-03-22
10TH PERCENTILE 0.002 9.5
MEDIAN 0.002 15.9
90TH PERCENTILE 0.002 89.6
MAXIMUM 0.002 113.0
DATE OF MAXIMUM 1996-12-16 1994-12-14
STANDARD DEVIATION 0.000 32.8
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 - 1994-01-01 TO 1996-12-31
PERIOD OF RECORD FROM - 1994-01-28 TO 1996-12-02
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 2 16 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 35 37 31 19 35
MEAN 70. 10.2 0.38 0.05 96.
MINIMUM 43. 2.0 0.01 0.01 85.
DATE OF MINIMUM 1994-10-27 1994-02-18 1995-05-10 1994-02-18 1996-05-03
10TH PERCENTILE 61. 3.0 0.12 0.01 88.
MEDIAN 69. 11.0 0.33 0.04 96.
90TH PERCENTILE 84. 17.0 0.70 0.09 104.
MAXIMUM 98. 22.0 1.04 0.26 114.
DATE OF MAXIMUM 1995-11-03 1995-08-11 1995-09-08 1995-08-11 1995-08-11
STANDARD DEVIATION 10. 5.0 0.23 0.05 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 2 0 0 10
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 35 33 35 35 43
MEAN 10.9 2. 12.11 7.0 3.
MINIMUM 9.2 1. 10.00 6.6 1.
DATE OF MINIMUM 1994-09-09 1995-04-28 1995-11-03 1994-06-03 1994-02-18
10TH PERCENTILE 9.5 1. 11.00 6.8 1.
MEDIAN 10.7 2. 12.00 7.0 2.
90TH PERCENTILE 12.6 3. 13.00 7.2 4.
MAXIMUM 12.9 4. 14.00 7.4 8.
DATE OF MAXIMUM 1994-01-28 1996-05-07 1994-11-29 1996-04-29 1994-06-03
STANDARD DEVIATION 1.1 1. 1.02 0.2 1.
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 11 7 15 16
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 35 3 10 2 1
MEAN 10. 0.004 0.003 0.001 0.002
MINIMUM 7. 0.001 0.001 0.000 0.000
DATE OF MINIMUM 1995-09-04 1995-04-18 1995-03-07 1995-04-18 1995-09-12
10TH PERCENTILE 8. 0.001 0.001 0.000 0.001
MEDIAN 10. 0.003 0.003 0.001 0.002
90TH PERCENTILE 12. 0.009 0.006 0.002 0.004
MAXIMUM 13. 0.009 0.010 0.004 0.004
DATE OF MAXIMUM 1994-07-22 1996-01-09 1995-11-17 1996-07-25 1996-03-04
STANDARD DEVIATION 2. 0.003 0.002 0.001 0.001
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 3 3 4 4 3
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 2 2 1 1 2
MEAN 0.001 0.001 0.001 0.001 0.001
MINIMUM 0.001 0.001 0.001 0.001 0.001
DATE OF MINIMUM 1994-04-21 1994-04-21 1994-10-13 1994-04-21 1994-04-21
10TH PERCENTILE
MEDIAN 0.001 0.001 0.001 0.001 0.001
90TH PERCENTILE
MAXIMUM 0.001 0.001 0.002 0.001 0.002
DATE OF MAXIMUM 1995-03-07 1995-03-07 1994-04-21 1995-03-07 1994-10-13
STANDARD DEVIATION 0.000 0.000 0.000 0.000 0.000
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 4 0 0 4 4
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 1 19 19 0 0
MEAN 0.001 0.004 0.002 0.000 0.000
MINIMUM 0.001 0.001 0.000 0.000 0.000
DATE OF MINIMUM 1994-04-21 1995-02-03 1995-02-03 1994-04-21 1994-04-21
10TH PERCENTILE 0.002 0.000
MEDIAN 0.001 0.004 0.002 0.000 0.000
90TH PERCENTILE 0.005 0.004
MAXIMUM 0.002 0.008 0.005 0.000 0.000
DATE OF MAXIMUM 1994-10-13 1996-07-25 1995-07-21 1995-02-03 1995-02-03
STANDARD DEVIATION 0.000 0.002 0.002 0.000 0.000
Pb Pb INST
TOTAL DISS DISCHG
82001 82101 97160
mg/L Pb mg/L Pb m3/S
NO. OF L-FLAGGED VALUES 2 4 0
NO. OF G-FLAGGED VALUES 0 0 0
NO. OF UNFLAGGED VALUES 3 1 11
MEAN 0.002 0.001 54.8
MINIMUM 0.001 0.001 9.2
DATE OF MINIMUM 1994-04-21 1994-04-21 1996-07-10
10TH PERCENTILE 10.2
MEDIAN 0.001 0.001 58.4
90TH PERCENTILE 77.7
MAXIMUM 0.008 0.002 95.5
DATE OF MAXIMUM 1994-10-13 1994-10-13 1996-11-01
STANDARD DEVIATION 0.003 0.000 24.7
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 - 1994-01-01 TO 1996-12-31
PERIOD OF RECORD FROM - 1994-01-04 TO 1996-12-17
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 2 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 149 146 150 147 108
MEAN 660. 11.9 4.24 3.86 67.
MINIMUM 284. 2.9 0.68 0.04 5.
DATE OF MINIMUM 1994-11-15 1996-02-01 1994-03-08 1994-03-08 1995-09-12
10TH PERCENTILE 393. 5.1 2.57 1.39 45.
MEDIAN 691. 11.2 4.42 4.23 67.
90TH PERCENTILE 856. 19.8 5.70 6.17 84.
MAXIMUM 1574. 24.4 6.39 7.19 145.
DATE OF MAXIMUM 1996-08-27 1995-08-22 1996-08-06 1995-11-07 1994-07-12
STANDARD DEVIATION 191. 5.4 1.23 1.85 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 9
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 108 146 148 149 140
MEAN 7.7 4. 102.93 7.4 11.
MINIMUM 4.7 1. 31.00 7.0 2.
DATE OF MINIMUM 1995-07-04 1996-09-17 1994-01-04 1994-03-08 1994-09-06
10TH PERCENTILE 5.4 2. 61.00 7.2 3.
MEDIAN 7.2 4. 109.00 7.4 8.
90TH PERCENTILE 10.4 5. 131.00 7.6 21.
MAXIMUM 12.9 9. 141.00 8.1 143.
DATE OF MAXIMUM 1994-07-12 1994-07-12 1995-08-18 1994-01-04 1996-01-23
STANDARD DEVIATION 2.0 1. 26.77 0.2 14.
Na Mg Si SULPHATE Cl
DISS DISS REACTIVE DISS
11102 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 146 150 146 140 150
MEAN 75. 9. 8.60 90. 89.
MINIMUM 17. 5. 3.46 43. 14.
DATE OF MINIMUM 1994-11-15 1994-01-04 1995-05-09 1994-01-04 1994-03-08
10TH PERCENTILE 34. 7. 7.03 59. 43.
MEDIAN 81. 9. 8.54 92. 94.
90TH PERCENTILE 110. 10. 10.30 113. 129.
MAXIMUM 131. 21. 12.70 121. 173.
DATE OF MAXIMUM 1996-02-01 1994-02-01 1995-08-22 1996-05-21 1996-02-01
STANDARD DEVIATION 29. 2. 1.47 20. 33.
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 16 11 16 16 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 0 5 0 0 147
MEAN 0.005 0.015 0.005 0.005 8.4
MINIMUM 0.005 0.005 0.005 0.005 3.9
DATE OF MINIMUM 1994-01-04 1994-01-04 1994-01-04 1994-01-04 1994-04-05
10TH PERCENTILE 0.005 0.005 0.005 0.005 5.1
MEDIAN 0.005 0.005 0.005 0.005 8.9
90TH PERCENTILE 0.005 0.041 0.005 0.005 11.3
MAXIMUM 0.005 0.059 0.005 0.005 12.2
DATE OF MAXIMUM 1996-05-09 1995-04-25 1996-05-09 1996-05-09 1995-10-17
STANDARD DEVIATION 0.000 0.017 0.000 0.000 2.3
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 0 0 4 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 150 146 8 142 8
MEAN 47.061 0.005 0.004 0.008 0.008
MINIMUM 32.200 0.001 0.002 0.002 0.004
DATE OF MINIMUM 1994-01-04 1994-02-01 1994-03-15 1994-02-01 1994-03-30
10TH PERCENTILE 39.300 0.003 0.005
MEDIAN 47.500 0.005 0.003 0.008 0.007
90TH PERCENTILE 53.500 0.007 0.010
MAXIMUM 75.100 0.020 0.007 0.016 0.012
DATE OF MAXIMUM 1994-02-01 1996-10-08 1994-06-07 1996-04-02 1995-05-23
STANDARD DEVIATION 6.056 0.002 0.002 0.002 0.003
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 0 1 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 146 134 148 7 16
MEAN 0.007 0.005 0.027 0.020 0.002
MINIMUM 0.003 0.001 0.011 0.015 0.001
DATE OF MINIMUM 1994-06-14 1994-08-02 1994-02-01 1994-03-15 1994-03-01
10TH PERCENTILE 0.005 0.004 0.017 0.001
MEDIAN 0.007 0.005 0.026 0.019 0.002
90TH PERCENTILE 0.010 0.006 0.038 0.002
MAXIMUM 0.018 0.010 0.141 0.026 0.003
DATE OF MAXIMUM 1996-01-23 1996-01-30 1995-10-17 1996-01-09 1996-05-09
STANDARD DEVIATION 0.002 0.001 0.014 0.003 0.001
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 0 85 8 58 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 9 60 0 89 146
MEAN 0.002 0.000 0.000 0.088 0.005
MINIMUM 0.001 0.000 0.000 0.020 0.001
DATE OF MINIMUM 1994-02-17 1994-01-11 1994-02-17 1995-01-17 1995-08-08
10TH PERCENTILE 0.000 0.020 0.002
MEDIAN 0.002 0.000 0.000 0.033 0.004
90TH PERCENTILE 0.000 0.190 0.009
MAXIMUM 0.003 0.000 0.000 1.100 0.018
DATE OF MAXIMUM 1994-08-09 1996-12-17 1996-01-09 1994-08-23 1996-01-23
STANDARD DEVIATION 0.001 0.000 0.000 0.138 0.003
Pb INST
DISS DISCHG
82101 97160
mg/L Pb m3/S
NO. OF L-FLAGGED VALUES 0 0
NO. OF G-FLAGGED VALUES 0 0
NO. OF UNFLAGGED VALUES 8 131
MEAN 0.001 33.9
MINIMUM 0.001 4.6
DATE OF MINIMUM 1994-02-17 1994-07-12
10TH PERCENTILE 11.7
MEDIAN 0.001 21.2
90TH PERCENTILE 75.1
MAXIMUM 0.003 115.0
DATE OF MAXIMUM 1995-05-23 1996-12-03
STANDARD DEVIATION 0.001 26.2
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 - 1994-01-01 TO 1996-12-31
PERIOD OF RECORD FROM - 1994-01-10 TO 1996-12-03
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 142 143 142 142 142
MEAN 151. 9.9 1.06 0.04 99.
MINIMUM 84. 1.0 0.30 0.00 82.
DATE OF MINIMUM 1994-12-12 1994-02-23 1995-08-08 1996-03-13 1996-08-13
10TH PERCENTILE 120. 3.5 0.66 0.00 86.
MEDIAN 156. 9.0 1.02 0.03 96.
90TH PERCENTILE 178. 17.5 1.50 0.08 116.
MAXIMUM 191. 22.5 2.30 0.20 187.
DATE OF MAXIMUM 1995-08-22 1995-08-22 1996-11-28 1995-11-01 1995-08-08
STANDARD DEVIATION 23. 5.4 0.35 0.03 15.
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 142 141 142 131 143
MEAN 11.3 2. 7.8 5. 1.71
MINIMUM 8.1 1. 6.8 1. 0.00
DATE OF MINIMUM 1996-08-13 1996-02-22 1994-12-12 1994-07-04 1994-05-31
10TH PERCENTILE 9.8 1. 7.2 1. 0.45
MEDIAN 11.2 2. 7.6 2. 1.65
90TH PERCENTILE 12.7 3. 8.6 5. 2.98
MAXIMUM 16.7 4. 10.0 124. 3.90
DATE OF MAXIMUM 1995-08-08 1994-08-01 1995-08-22 1994-12-12 1996-02-22
STANDARD DEVIATION 1.3 1. 0.6 14. 0.96
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 88 39 93
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 143 143 35 104 30
MEAN 10. 13. 0.001 0.03 0.001
MINIMUM 6. 7. 0.000 0.00 0.000
DATE OF MINIMUM 1994-01-10 1996-10-17 1995-04-05 1994-06-14 1996-05-07
10TH PERCENTILE 7. 10. 0.001 0.00 0.001
MEDIAN 10. 13. 0.001 0.03 0.001
90TH PERCENTILE 12. 16. 0.001 0.06 0.001
MAXIMUM 15. 43. 0.002 0.12 0.004
DATE OF MAXIMUM 1994-03-01 1996-02-29 1994-09-28 1994-12-12 1995-09-05
STANDARD DEVIATION 2. 4. 0.000 0.02 0.000
Cu Zn Cd Pb
DISS DISS DISS DISS
29106 30104 48101 82101
mg/L Cu mg/L Zn mg/L Cd mg/L Pb
NO. OF L-FLAGGED VALUES 1 20 119 60
NO. OF G-FLAGGED VALUES 0 0 0 0
NO. OF UNFLAGGED VALUES 122 103 4 63
MEAN 0.004 0.002 0.000 0.001
MINIMUM 0.000 0.000 0.000 0.000
DATE OF MINIMUM 1994-04-13 1996-07-02 1994-01-10 1994-06-20
10TH PERCENTILE 0.001 0.001 0.000 0.000
MEDIAN 0.003 0.002 0.000 0.001
90TH PERCENTILE 0.007 0.004 0.000 0.001
MAXIMUM 0.017 0.012 0.000 0.004
DATE OF MAXIMUM 1995-08-22 1995-02-28 1996-07-18 1994-06-14
STANDARD DEVIATION 0.003 0.002 0.000 0.001
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 - 1994-01-01 TO 1996-12-31
PERIOD OF RECORD FROM - 1994-01-21 TO 1996-12-16
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 1 11 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 35 31 34 24 33
MEAN 56. 8.4 0.05 0.01 95.
MINIMUM 28. 1.5 0.01 0.00 74.
DATE OF MINIMUM 1994-10-24 1996-02-02 1994-09-15 1994-09-15 1995-07-20
10TH PERCENTILE 31. 3.0 0.02 0.00 87.
MEDIAN 42. 9.0 0.04 0.01 95.
90TH PERCENTILE 86. 14.5 0.09 0.02 101.
MAXIMUM 297. 16.9 0.21 0.03 116.
DATE OF MAXIMUM 1995-09-29 1995-08-17 1994-01-21 1995-09-29 1995-08-17
STANDARD DEVIATION 47. 4.5 0.04 0.01 7.
O2 BOD pH SUSP SOL Cl
DISS 105 DEG DISS
08101 08201 10301 10401 17204
mg/L O2 mg/L O2 pH UNITS mg/L mg/L Cl
NO. OF L-FLAGGED VALUES 0 0 0 19 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 34 35 10 16 35
MEAN 11.3 1. 6.5 1. 8.
MINIMUM 9.4 0. 6.0 0. 4.
DATE OF MINIMUM 1995-07-20 1994-10-24 1995-02-28 1994-02-18 1996-08-16
10TH PERCENTILE 9.8 0. 6.0 0. 6.
MEDIAN 11.1 1. 6.6 1. 8.
90TH PERCENTILE 12.6 2. 6.8 2. 11.
MAXIMUM 13.7 6. 6.9 5. 14.
DATE OF MAXIMUM 1996-02-02 1994-08-18 1996-09-19 1996-06-07 1994-03-15
STANDARD DEVIATION 1.1 1. 0.3 1. 2.
LINDANE Cr Ni Cu Zn
TOTAL TOTAL TOTAL TOTAL
18070 24002 28001 29006 30004
ug/L mg/L Cr mg/L Ni mg/L Cu mg/L Zn
NO. OF L-FLAGGED VALUES 26 34 29 25 5
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 1 1 6 10 30
MEAN 0.002 0.001 0.002 0.001 0.004
MINIMUM 0.002 0.001 0.001 0.001 0.001
DATE OF MINIMUM 1994-01-21 1994-02-18 1994-02-18 1994-01-21 1994-01-21
10TH PERCENTILE 0.002 0.001 0.001 0.001 0.001
MEDIAN 0.002 0.001 0.001 0.001 0.002
90TH PERCENTILE 0.002 0.001 0.002 0.001 0.008
MAXIMUM 0.002 0.002 0.012 0.001 0.022
DATE OF MAXIMUM 1996-09-19 1994-01-21 1996-07-12 1996-12-16 1994-11-21
STANDARD DEVIATION 0.000 0.000 0.002 0.000 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 35 30 16 26 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 0 5 19 8 35
MEAN 0.002 0.001 0.030 0.002 12.9
MINIMUM 0.002 0.000 0.010 0.001 0.8
DATE OF MINIMUM 1995-01-26 1994-04-05 1995-09-29 1994-01-21 1995-08-17
10TH PERCENTILE 0.002 0.001 0.010 0.001 0.9
MEDIAN 0.002 0.001 0.020 0.001 6.4
90TH PERCENTILE 0.003 0.001 0.058 0.002 32.9
MAXIMUM 0.003 0.001 0.129 0.024 78.6
DATE OF MAXIMUM 1994-12-02 1994-03-15 1994-12-02 1996-07-12 1994-01-21
STANDARD DEVIATION 0.000 0.000 0.025 0.004 16.9
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 - 1994-01-01 TO 1996-12-31
PERIOD OF RECORD FROM - 1994-01-11 TO 1996-12-16
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 80 80 80 80 18
MEAN 1. 291. 0.55 8.3 8.
MINIMUM 1. 217. 0.00 7.4 4.
DATE OF MINIMUM 1994-01-11 1995-03-09 1995-08-21 1995-02-06 1994-11-28
10TH PERCENTILE 1. 267. 0.02 7.8 4.
MEDIAN 1. 287. 0.47 8.2 7.
90TH PERCENTILE 1. 325. 1.33 9.0 11.
MAXIMUM 1. 364. 1.66 9.2 13.
DATE OF MAXIMUM 1996-12-16 1996-04-10 1996-02-26 1996-04-10 1994-05-31
STANDARD DEVIATION 0. 26. 0.47 0.4 3.
Si P
REACTIVE TOTAL
14101 15405
mg/LSiO2 mg/L P
NO. OF L-FLAGGED VALUES 0 0
NO. OF G-FLAGGED VALUES 0 0
NO. OF UNFLAGGED VALUES 80 80
MEAN 4.67 0.094
MINIMUM 0.00 0.012
DATE OF MINIMUM 1996-05-07 1994-05-31
10TH PERCENTILE 0.05 0.021
MEDIAN 5.14 0.091
90TH PERCENTILE 8.96 0.165
MAXIMUM 13.06 0.292
DATE OF MAXIMUM 1995-12-11 1995-01-11
STANDARD DEVIATION 3.88 0.058
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 - 1994-01-01 TO 1996-12-31
PERIOD OF RECORD FROM - 1994-01-06 TO 1995-06-29
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 76 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 17 84 104 27 15
MEAN 742. 18.2 3.74 0.06 94.
MINIMUM 621. 3.0 2.10 0.03 71.
DATE OF MINIMUM 1994-03-03 1995-03-27 1995-02-13 1994-06-27 1994-07-25
10TH PERCENTILE 678. 8.6 3.10 0.03 78.
MEDIAN 740. 19.0 3.90 0.05 93.
90TH PERCENTILE 774. 25.0 4.26 0.07 100.
MAXIMUM 830. 26.0 4.80 0.58 129.
DATE OF MAXIMUM 1995-05-03 1995-04-24 1994-12-19 1995-06-12 1994-01-06
STANDARD DEVIATION 41. 5.8 0.46 0.07 12.
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 9 0 0 13
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 16 8 86 87 4
MEAN 10.8 2. 130.55 8.1 4.
MINIMUM 6.7 1. 92.00 7.4 1.
DATE OF MINIMUM 1994-07-25 1994-04-06 1994-05-09 1994-01-24 1994-05-31
10TH PERCENTILE 7.9 1. 117.00 8.0 1.
MEDIAN 10.0 2. 130.00 8.1 4.
90TH PERCENTILE 12.7 2. 141.80 8.3 6.
MAXIMUM 16.5 2. 215.00 8.5 10.
DATE OF MAXIMUM 1994-01-06 1994-06-27 1994-03-07 1995-05-09 1994-01-06
STANDARD DEVIATION 2.2 0. 14.00 0.2 2.
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 4 0 0 6
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 17 67 84 34 0
MEAN 37. 2.15 155. 62. 0.004
MINIMUM 34. 0.30 140. 50. 0.001
DATE OF MINIMUM 1995-03-27 1994-09-12 1995-03-27 1995-05-03 1994-02-01
10TH PERCENTILE 34. 1.10 142. 56.
MEDIAN 37. 2.00 152. 62. 0.005
90TH PERCENTILE 40. 3.59 164. 66.
MAXIMUM 41. 3.80 223. 70. 0.005
DATE OF MAXIMUM 1994-08-22 1995-03-13 1994-08-22 1994-01-11 1995-05-03
STANDARD DEVIATION 2. 0.94 12. 4. 0.002
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 2 6 5 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 4 0 1 17 2
MEAN 0.008 0.004 0.004 7.2 95.500
MINIMUM 0.005 0.001 0.001 6.8
DATE OF MINIMUM 1994-10-21 1994-02-01 1994-02-01 1995-03-27
10TH PERCENTILE 6.9
MEDIAN 0.008 0.005 0.005 7.1
90TH PERCENTILE 7.5
MAXIMUM 0.011 0.005 0.005 7.8
DATE OF MAXIMUM 1994-02-01 1995-05-03 1995-05-03 1994-02-01
STANDARD DEVIATION 0.003 0.002 0.002 0.3
Cr Fe Fe Ni Cu
TOTAL TOTAL DISS TOTAL TOTAL
24002 26004 26104 28001 29006
mg/L Cr mg/L Fe mg/L Fe mg/L Ni mg/L Cu
NO. OF L-FLAGGED VALUES 5 11 64 4 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 0 52 6 1 5
MEAN 0.001 0.09 0.04 0.004 0.004
MINIMUM 0.001 0.02 0.02 0.002 0.002
DATE OF MINIMUM 1994-05-31 1994-03-07 1994-02-07 1994-05-31 1994-05-31
10TH PERCENTILE 0.02 0.02
MEDIAN 0.001 0.05 0.02 0.005 0.005
90TH PERCENTILE 0.20 0.05
MAXIMUM 0.002 0.50 0.50 0.005 0.006
DATE OF MAXIMUM 1994-08-22 1994-09-05 1994-09-05 1994-08-22 1994-08-22
STANDARD DEVIATION 0.001 0.10 0.07 0.001 0.002
Zn As Cd Ba Pb
TOTAL TOTAL TOTAL TOTAL TOTAL
30004 33007 48001 80011 82001
mg/L Zn mg/L As mg/L Cd ug/L Hg mg/L Pb
NO. OF L-FLAGGED VALUES 2 4 5 4 5
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 3 1 0 1 0
MEAN 0.015 0.001 0.000 0.027 0.001
MINIMUM 0.003 0.000 0.000 0.010 0.001
DATE OF MINIMUM 1994-05-31 1994-11-21 1994-03-03 1994-08-22 1994-05-31
10TH PERCENTILE
MEDIAN 0.013 0.002 0.000 0.013 0.001
90TH PERCENTILE
MAXIMUM 0.031 0.002 0.000 0.050 0.002
DATE OF MAXIMUM 1994-03-03 1994-08-22 1995-06-01 1994-05-31 1994-08-22
STANDARD DEVIATION 0.012 0.001 0.000 0.021 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 - 1994-01-01 TO 1996-12-31
PERIOD OF RECORD FROM - 1994-01-13 TO 1996-12-12
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 0 14 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 3 32 9 19 25
MEAN 93. 10.3 0.49 0.05 90.
MINIMUM 1.6 0.23 0.00 68.
DATE OF MINIMUM 1996-11-21 1994-08-31 1994-01-13 1996-03-20
10TH PERCENTILE 2.5 0.03 73.
MEDIAN 10.1 0.39 0.05 93.
90TH PERCENTILE 17.9 0.08 102.
MAXIMUM 19.1 1.07 0.15 107.
DATE OF MAXIMUM 1995-08-09 1996-04-23 1995-01-19 1995-05-03
STANDARD DEVIATION 6.1 0.29 0.03 11.
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 1 11 0 3
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 18 29 19 29 27
MEAN 10.4 1. 17.20 7.3 9.
MINIMUM 7.0 0. 1.00 6.6 1.
DATE OF MINIMUM 1996-09-03 1994-08-31 1994-01-13 1994-01-13 1994-07-26
10TH PERCENTILE 7.6 1. 10.00 6.7 2.
MEDIAN 10.6 1. 12.50 7.1 4.
90TH PERCENTILE 12.1 2. 31.00 7.6 12.
MAXIMUM 13.4 3. 39.00 8.9 71.
DATE OF MAXIMUM 1996-12-12 1996-07-09 1995-09-18 1995-07-19 1996-07-09
STANDARD DEVIATION 1.8 1. 9.25 0.5 14.
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 7 7 6 11 7
MEAN 6. 2. 3.31 11. 9.
MINIMUM 5. 2. 2.70 5. 7.
DATE OF MINIMUM 1995-08-09 1994-05-24 1994-08-31 1996-12-12 1995-02-16
10TH PERCENTILE 6.
MEDIAN 6. 2. 3.32 9. 9.
90TH PERCENTILE 14.
MAXIMUM 7. 3. 4.05 18. 13.
DATE OF MAXIMUM 1994-10-26 1995-11-13 1995-02-16 1995-11-13 1994-08-31
STANDARD DEVIATION 1. 0. 0.49 3. 2.
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 26 9 28 31 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 0 18 0 0 7
MEAN 0.003 0.001 0.002 0.002 1.1
MINIMUM 0.002 0.001 0.000 0.001 0.9
DATE OF MINIMUM 1994-05-24 1994-07-26 1994-01-13 1994-05-24 1995-08-09
10TH PERCENTILE 0.002 0.001 0.001 0.001
MEDIAN 0.004 0.001 0.002 0.003 1.1
90TH PERCENTILE 0.004 0.002 0.002 0.003
MAXIMUM 0.004 0.004 0.002 0.003 1.5
DATE OF MAXIMUM 1996-12-12 1994-09-14 1996-12-12 1996-12-12 1995-11-13
STANDARD DEVIATION 0.001 0.001 0.001 0.001 0.2
Ca Cd Cd Ba Hg
DISS TOTAL DISS TOTAL DISS
20103 48001 48101 80011 80111
mg/L Ca mg/L Cd mg/L Cd ug/L Hg ug/L Hg
NO. OF L-FLAGGED VALUES 0 7 7 8 4
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 7 4 0 3 1
MEAN 9.886 0.000 0.000 0.051 0.084
MINIMUM 6.600 0.000 0.000 0.020 0.020
DATE OF MINIMUM 1994-05-24 1994-05-24 1994-05-24 1995-06-07 1995-08-09
10TH PERCENTILE 0.000 0.020
MEDIAN 10.100 0.000 0.000 0.020 0.100
90TH PERCENTILE 0.000 0.100
MAXIMUM 13.200 0.001 0.000 0.100 0.100
DATE OF MAXIMUM 1994-10-26 1996-11-26 1995-11-13 1995-02-16 1995-02-16
STANDARD DEVIATION 2.405 0.000 0.000 0.039 0.036
GEMS/WATER
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Last updated: 2001-07-30