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STATISTICS FOR MEXICO
GEMS/WATER - STATISTICAL SUMMARY BY STATION 2002-01-08 PAGE 443
STATION - RIO COLORADO STATION NO. 037001
COUNTRY - MEXICO DEPTH(M) 4.0
LOCATION - OCT. 1 LAT. 32/42/00 LONG. 114/43/00 ELEVATION(M)9999.9
REGIONAL CENTRE - AMRA WATER TYPE RIVER
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1989-01-24 TO 1990-12-11
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP N KJEL ORG. N NH3
COND DISS
02041 02061 07004 07401 07554
us/cm deg C mg/L N mg/L N mg/L N
NO. OF L-FLAGGED VALUES 0 0 0 0 11
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 23 23 10 11 12
MEAN 1445. 22.8 0.8 0.6 0.15
MINIMUM 3. 14.0 0.2 0.2 0.05
DATE OF MINIMUM 1989-05-16 1989-11-09 1989-01-24 1990-04-17 1989-01-24
10TH PERCENTILE 1200. 14.3 0.2 0.2 0.05
MEDIAN 1600. 24.0 0.5 0.6 0.05
90TH PERCENTILE 1600. 29.0 1.4 0.9 0.44
MAXIMUM 2100. 30.0 2.0 0.9 0.67
DATE OF MAXIMUM 1989-08-29 1990-07-10 1989-06-06 1990-09-25 1990-11-13
STANDARD DEVIATION 369. 5.5 0.6 0.2 0.18
O2 BOD COD ALK pH
DISS TOTAL
08101 08201 08301 10102 10302
mg/L O2 mg/L O2 mg/L O2 mg/L pH UNITS
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 23 23 22 21 22
MEAN 8.7 2. 17. 193.38 7.7
MINIMUM 4.9 1. 0. 121.00 1.9
DATE OF MINIMUM 1990-07-10 1989-02-21 1990-05-15 1989-09-19 1989-09-19
10TH PERCENTILE 6.9 1. 2. 132.50 7.0
MEDIAN 8.9 2. 18. 192.00 8.1
90TH PERCENTILE 10.3 4. 28. 245.90 8.3
MAXIMUM 10.8 5. 42. 253.00 8.4
DATE OF MAXIMUM 1990-10-16 1989-07-11 1990-03-06 1990-11-13 1989-07-11
STANDARD DEVIATION 1.4 1. 11. 37.33 1.3
SUSP SOL SUSP SOL RESIDUE VOL SUSP RESIDUE
105 DEG 180 DEG TOTAL SOLIDS FIX TOT
10401 10408 10473 10511 10571
mg/L mg/L mg/L mg/L 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 20 8 11 10 11
MEAN 20. 9. 991. 11. 712.
MINIMUM 6. 2. 694. 4. 176.
DATE OF MINIMUM 1989-02-21 1989-07-11 1990-10-16 1990-05-15 1990-05-15
10TH PERCENTILE 8. 706. 4. 209.
MEDIAN 19. 9. 1004. 10. 770.
90TH PERCENTILE 30. 1177. 20. 964.
MAXIMUM 44. 20. 1206. 22. 982.
DATE OF MAXIMUM 1990-08-21 1989-11-09 1990-05-15 1990-11-13 1990-12-11
STANDARD DEVIATION 10. 7. 155. 6. 236.
HARDNESS Mg PO4-P PO4 SULPHATE
TOTAL DISS SOL TOTAL
10603 12102 15254 15403 16302
mg/L mg/L Mg mg/L PO4 mg/L PO4 mg/L SO4
NO. OF L-FLAGGED VALUES 0 0 8 4 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 10 5 10 18 19
MEAN 361.2 143. 0.016 0.453 208.
MINIMUM 311.0 113. 0.010 0.010 4.
DATE OF MINIMUM 1990-01-23 1989-08-29 1989-01-24 1989-03-14 1990-02-13
10TH PERCENTILE 311.0 0.010 0.010 143.
MEDIAN 358.0 146. 0.010 0.030 219.
90TH PERCENTILE 396.0 0.036 0.145 257.
MAXIMUM 422.0 165. 0.040 9.046 268.
DATE OF MAXIMUM 1990-12-11 1989-07-11 1990-04-17 1990-12-11 1990-10-16
STANDARD DEVIATION 32.6 19. 0.011 1.920 58.
Cl Ca Ca FAEC COL FAEC
DISS DISS HARDNESS STREP
17201 20101 20106 36011 36101
mg/L Cl mg/L Ca mg/L No/100ml No/100ml
NO. OF L-FLAGGED VALUES 0 0 0 3 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 20 7 9 18 9
MEAN 161. 203.143 209.9 237. 107.
MINIMUM 107. 43.000 122.0 3. 4.
DATE OF MINIMUM 1989-03-14 1990-07-10 1990-03-06 1989-02-21 1990-09-25
10TH PERCENTILE 119. 3.
MEDIAN 155. 222.000 226.0 43. 43.
90TH PERCENTILE 198. 880.
MAXIMUM 209. 262.000 255.0 1500. 430.
DATE OF MAXIMUM 1989-11-09 1989-05-16 1990-12-11 1990-10-16 1990-02-13
STANDARD DEVIATION 30. 72.151 49.5 470. 135.
STATION - RIO CONCHOS STATION NO. 037002
COUNTRY - MEXICO DEPTH(M) 1.1
LOCATION - OCT. 1 LAT. 29/34/00 LONG. 104/26/00 ELEVATION(M)1210.0
REGIONAL CENTRE - AMRA WATER TYPE RIVER
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-02-02 TO 1990-11-16
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP OIL AND NO3NO2 NO3-N
COND GREASE
02041 02061 06521 07105 07306
us/cm deg C mg/L mg/L N mg/L N
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 17 15 5 7 1
MEAN 1063. 21.1 17. 1.03 0.64
MINIMUM 529. 14.0 3. 0.00
DATE OF MINIMUM 1989-08-16 1990-11-16 1990-01-23 1988-10-25
10TH PERCENTILE 731. 14.5
MEDIAN 1078. 21.0 6. 0.66
90TH PERCENTILE 1311. 25.5
MAXIMUM 2060. 27.0 40. 3.32
DATE OF MAXIMUM 1989-11-15 1990-06-13 1990-06-13 1989-11-15
STANDARD DEVIATION 352. 3.8 18. 1.13
NH3 O2 BOD COD ALK
DISS TOTAL
07554 08101 08201 08301 10102
mg/L N mg/L O2 mg/L O2 mg/L O2 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 4 17 16 3 18
MEAN 0.53 7.0 6. 5. 251.30
MINIMUM 0.00 5.0 1. 182.60
DATE OF MINIMUM 1988-02-02 1989-08-16 1988-06-01 1989-05-22
10TH PERCENTILE 5.5 1. 195.00
MEDIAN 0.00 7.5 7. 250.54
90TH PERCENTILE 8.0 9. 278.25
MAXIMUM 2.13 8.5 17. 337.45
DATE OF MAXIMUM 1988-12-07 1989-05-22 1989-04-04 1988-06-01
STANDARD DEVIATION 1.07 1.0 4. 38.49
pH SUSP SOL SUSP SOL RESIDUE VOL SUSP
105 DEG 180 DEG TOTAL SOLIDS
10302 10401 10408 10473 10511
pH UNITS mg/L mg/L mg/L 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 18 15 10 6 5
MEAN 7.0 47. 20. 873. 14.
MINIMUM 6.0 12. 4. 716. 0.
DATE OF MINIMUM 1988-12-07 1990-06-13 1988-04-19 1990-10-26 1990-08-06
10TH PERCENTILE 6.0 14. 4.
MEDIAN 7.0 36. 18. 852. 12.
90TH PERCENTILE 8.0 92. 36.
MAXIMUM 8.2 104. 36. 1180. 32.
DATE OF MAXIMUM 1988-02-02 1989-08-16 1989-04-04 1990-01-23 1990-04-24
STANDARD DEVIATION 0.7 30. 11. 169. 13.
RESIDUE HARDNESS Na Mg PO4-P
FIX TOT TOTAL DISS DISS SOL
10571 10603 11105 12102 15254
mg/L mg/L mg/L Na mg/L Mg mg/L PO4
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 6 6 2 6 15
MEAN 765. 331.1 52. 96. 0.167
MINIMUM 656. 242.0 39. 0.000
DATE OF MINIMUM 1990-10-26 1990-08-06 1988-06-01 1988-06-01
10TH PERCENTILE 0.005
MEDIAN 736. 334.0 93. 0.130
90TH PERCENTILE 0.243
MAXIMUM 944. 417.0 175. 0.653
DATE OF MAXIMUM 1990-01-23 1990-11-16 1988-08-02 1990-11-16
STANDARD DEVIATION 120. 57.6 54. 0.151
PO4 SULPHATE Cl K Ca
TOTAL DISS DISS DISS
15403 16302 17201 19105 20101
mg/L PO4 mg/L SO4 mg/L Cl mg/L K mg/L Ca
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 18 18 18 2 7
MEAN 0.462 219. 37. 2.9 236.400
MINIMUM 0.080 155. 4. 118.800
DATE OF MINIMUM 1988-12-07 1989-06-06 1988-12-07 1989-10-03
10TH PERCENTILE 0.208 156. 16.
MEDIAN 0.420 200. 31. 246.520
90TH PERCENTILE 0.585 242. 54.
MAXIMUM 1.380 490. 97. 392.390
DATE OF MAXIMUM 1990-11-16 1988-06-01 1990-01-23 1988-06-01
STANDARD DEVIATION 0.270 82. 23. 92.300
Ca COLIFORM
HARDNESS TOTAL
20106 36001
mg/L No/100ml
NO. OF L-FLAGGED VALUES 0 0
NO. OF G-FLAGGED VALUES 0 0
NO. OF UNFLAGGED VALUES 5 6
MEAN 255.2 298.
MINIMUM 175.0 23.
DATE OF MINIMUM 1990-08-06 1990-06-13
10TH PERCENTILE
MEDIAN 231.0 166.
90TH PERCENTILE
MAXIMUM 344.0 1100.
DATE OF MAXIMUM 1990-11-16 1990-08-06
STANDARD DEVIATION 70.1 402.
STATION - RIO BRAVO STATION NO. 037003
COUNTRY - MEXICO DEPTH(M) 3.0
LOCATION - OCT. 1 LAT. 25/53/00 LONG. 097/30/30 ELEVATION(M) 1.5
REGIONAL CENTRE - AMRA WATER TYPE RIVER
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-01-14 TO 1990-12-04
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP B NO3NO2 NO3-N
COND DISS
02041 02061 05101 07105 07306
us/cm deg C mg/L B mg/L N mg/L N
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 28 29 29 11 18
MEAN 1380. 24.7 0.4 0.12 0.20
MINIMUM 950. 10.0 0.2 0.05 0.05
DATE OF MINIMUM 1990-01-09 1988-01-14 1988-05-12 1989-05-09 1988-04-14
10TH PERCENTILE 1124. 14.9 0.3 0.05 0.05
MEDIAN 1400. 26.0 0.4 0.06 0.14
90TH PERCENTILE 1605. 30.0 0.6 0.20 0.39
MAXIMUM 1820. 31.0 1.0 0.54 0.74
DATE OF MAXIMUM 1990-06-12 1990-07-12 1990-01-09 1989-01-10 1990-01-09
STANDARD DEVIATION 192. 5.6 0.2 0.15 0.18
NH3 O2 BOD COD ALK
DISS TOTAL
07554 08101 08201 08301 10102
mg/L N mg/L O2 mg/L O2 mg/L O2 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 7 27 27 25 29
MEAN 0.42 7.8 4. 44. 171.08
MINIMUM 0.05 5.4 0. 7. 117.60
DATE OF MINIMUM 1989-09-12 1990-08-14 1989-05-09 1988-08-30 1990-06-12
10TH PERCENTILE 5.5 1. 11. 133.84
MEDIAN 0.36 7.7 3. 28. 167.20
90TH PERCENTILE 10.0 5. 98. 206.12
MAXIMUM 1.01 10.7 38. 192. 294.05
DATE OF MAXIMUM 1989-07-11 1988-06-07 1990-02-15 1989-04-04 1989-12-05
STANDARD DEVIATION 0.35 1.7 7. 48. 35.34
pH SUSP SOL SUSP SOL Si SULPHATE
105 DEG 180 DEG REACTIVE
10302 10401 10408 14101 16302
pH UNITS mg/L mg/L mg/LSiO2 mg/L SO4
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 29 30 7 1 29
MEAN 7.7 58. 25. 84.21 286.
MINIMUM 6.7 19. 10. 137.
DATE OF MINIMUM 1990-05-03 1988-01-14 1989-02-02 1990-05-03
10TH PERCENTILE 7.0 24. 145.
MEDIAN 7.9 50. 20. 296.
90TH PERCENTILE 8.3 90. 346.
MAXIMUM 8.5 124. 72. 604.
DATE OF MAXIMUM 1989-05-09 1990-07-12 1988-07-19 1990-12-04
STANDARD DEVIATION 0.5 26. 21. 91.
Cl COLIFORM FAEC COL
DISS TOTAL
17201 36001 36011
mg/L Cl No/100ml No/100ml
NO. OF L-FLAGGED VALUES 0 0 0
NO. OF G-FLAGGED VALUES 0 0 1
NO. OF UNFLAGGED VALUES 29 17 0
MEAN 209. 2465. 2400.
MINIMUM 134. 7.
DATE OF MINIMUM 1988-05-12 1990-01-09
10TH PERCENTILE 151. 24.
MEDIAN 212. 430.
90TH PERCENTILE 267. 5310.
MAXIMUM 308. 24000.
DATE OF MAXIMUM 1990-12-04 1988-05-12
STANDARD DEVIATION 45. 5999.
STATION - RIO PANUCO STATION NO. 037004
COUNTRY - MEXICO DEPTH(M) 10.0
LOCATION - OCT. 1 LAT. 23/03/00 LONG. 098/18/30 ELEVATION(M) 12.0
REGIONAL CENTRE - AMRA WATER TYPE RIVER
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-01-18 TO 1990-11-15
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP OIL AND NO3NO2 NO3-N
COND GREASE
02041 02061 06521 07105 07306
us/cm deg C mg/L mg/L N mg/L N
NO. OF L-FLAGGED VALUES 0 0 0 0 1
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 23 23 4 1 15
MEAN 883. 28.0 10. 0.63 0.64
MINIMUM 501. 22.0 6. 0.10
DATE OF MINIMUM 1990-09-05 1988-01-18 1990-11-15 1988-04-05
10TH PERCENTILE 530. 22.3 0.14
MEDIAN 933. 29.0 10. 0.50
90TH PERCENTILE 1182. 32.0 1.10
MAXIMUM 1268. 34.0 13. 3.10
DATE OF MAXIMUM 1988-03-03 1989-05-18 1990-09-05 1988-01-18
STANDARD DEVIATION 239. 3.8 3. 0.72
NH3 O2 BOD COD ALK
DISS TOTAL
07554 08101 08201 08301 10102
mg/L N mg/L O2 mg/L O2 mg/L O2 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 1 23 17 4 23
MEAN 1.26 8.1 2. 10. 184.22
MINIMUM 5.0 0. 3. 150.00
DATE OF MINIMUM 1988-08-29 1988-11-21 1990-02-14 1990-06-19
10TH PERCENTILE 5.6 0. 158.00
MEDIAN 8.0 1. 10. 189.00
90TH PERCENTILE 9.8 4. 204.00
MAXIMUM 12.2 4. 17. 232.00
DATE OF MAXIMUM 1988-04-05 1988-04-05 1990-11-15 1988-01-18
STANDARD DEVIATION 1.6 1. 6. 20.54
pH pH SUSP SOL HARDNESS TENS
105 DEG TOTAL ANIONIC
10301 10302 10401 10603 10702
pH UNITS pH UNITS mg/L mg/L mg/L
NO. OF L-FLAGGED VALUES 0 0 0 0 3
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 14 8 23 4 10
MEAN 8.3 8.3 69. 334.5 0.1
MINIMUM 8.0 8.1 4. 245.0 0.1
DATE OF MINIMUM 1988-01-18 1988-02-15 1988-01-18 1990-09-05 1989-09-14
10TH PERCENTILE 8.0 6. 0.1
MEDIAN 8.3 8.3 25. 328.5 0.1
90TH PERCENTILE 8.4 138. 0.2
MAXIMUM 8.4 8.4 564. 436.0 0.2
DATE OF MAXIMUM 1988-08-29 1990-11-15 1988-11-21 1990-06-19 1988-01-18
STANDARD DEVIATION 0.1 0.1 119. 78.4 0.0
Na Na Mg Mg PO4-P
DISS DISS DISS DISS SOL
11103 11105 12102 12103 15254
mg/L Na mg/L Na mg/L Mg mg/L Mg mg/L PO4
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 15 8 7 15 7
MEAN 30. 32. 40. 35. 0.024
MINIMUM 5. 10. 22. 15. 0.010
DATE OF MINIMUM 1988-01-18 1990-09-05 1990-04-19 1988-09-21 1989-11-20
10TH PERCENTILE 8. 19.
MEDIAN 32. 34. 41. 33. 0.010
90TH PERCENTILE 48. 47.
MAXIMUM 49. 49. 56. 62. 0.070
DATE OF MAXIMUM 1989-06-12 1989-07-12 1990-02-14 1988-04-05 1989-07-12
STANDARD DEVIATION 15. 16. 12. 12. 0.022
P ORTHO PO4 SULPHATE Cl Cl
DISS TOTAL DISS DISS
15255 15403 16302 17201 17204
mg/L P mg/L PO4 mg/L SO4 mg/L Cl mg/L Cl
NO. OF L-FLAGGED VALUES 1 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 10 6 21 8 15
MEAN 0.066 0.058 226. 30. 30.
MINIMUM 0.010 0.010 72. 12. 10.
DATE OF MINIMUM 1988-04-05 1990-02-14 1989-09-14 1990-09-05 1989-09-14
10TH PERCENTILE 0.010 85. 11.
MEDIAN 0.060 0.050 270. 32. 33.
90TH PERCENTILE 0.134 315. 46.
MAXIMUM 0.210 0.100 353. 46. 49.
DATE OF MAXIMUM 1988-07-13 1990-11-15 1988-04-05 1988-02-15 1988-01-18
STANDARD DEVIATION 0.061 0.035 92. 14. 14.
K K Ca Cu FAEC COL
DISS DISS DISS DISS
19103 19105 20101 29106 36011
mg/L K mg/L K mg/L Ca mg/L Cu No/100ml
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 20 2 23 1 6
MEAN 4.1 5.4 93.987 0.120 349.
MINIMUM 1.8 39.600 6.
DATE OF MINIMUM 1990-09-05 1990-09-05 1990-02-14
10TH PERCENTILE 2.0 49.670
MEDIAN 4.2 96.200 100.
90TH PERCENTILE 6.1 128.000
MAXIMUM 7.2 136.000 1600.
DATE OF MAXIMUM 1989-06-12 1989-01-18 1990-09-05
STANDARD DEVIATION 1.7 28.275 618.
Pb TEMP-AIR INST
DISS DISCHG
82101 97060 97160
mg/L Pb deg C m3/S
NO. OF L-FLAGGED VALUES 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0
NO. OF UNFLAGGED VALUES 1 15 15
MEAN 0.017 28.1 202.0
MINIMUM 21.0 51.2
DATE OF MINIMUM 1989-03-09 1988-06-15
10TH PERCENTILE 22.0 53.2
MEDIAN 28.0 89.5
90TH PERCENTILE 32.0 425.1
MAXIMUM 32.5 780.0
DATE OF MAXIMUM 1988-04-05 1988-08-29
STANDARD DEVIATION 3.4 209.6
STATION - RIO COATZACOALCOS STATION NO. 037005
COUNTRY - MEXICO DEPTH(M) 10.0
LOCATION - OCT. 1 LAT. 18/06/30 LONG. 094/25/00 ELEVATION(M) 1.1
REGIONAL CENTRE - AMRA WATER TYPE RIVER
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-01-26 TO 1990-11-26
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP OIL AND NO3NO2 NO3-N
COND GREASE
02041 02061 06521 07105 07306
us/cm deg C mg/L mg/L N mg/L N
NO. OF L-FLAGGED VALUES 0 0 0 0 2
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 18 20 4 13 5
MEAN 4382. 24.4 32. 0.58 0.26
MINIMUM 240. 17.0 2. 0.00 0.10
DATE OF MINIMUM 1988-09-12 1990-03-20 1990-01-24 1988-05-31 1990-03-20
10TH PERCENTILE 240. 20.0 0.06
MEDIAN 2600. 23.5 21. 0.56 0.25
90TH PERCENTILE 12100. 28.0 0.85
MAXIMUM 15000. 32.0 83. 1.31 0.54
DATE OF MAXIMUM 1989-04-11 1990-05-29 1990-10-02 1989-03-15 1990-01-24
STANDARD DEVIATION 4810. 3.6 35. 0.32 0.16
O2 BOD COD ALK pH
DISS TOTAL
08101 08201 08301 10102 10302
mg/L O2 mg/L O2 mg/L O2 mg/L pH UNITS
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 20 17 18 18 20
MEAN 5.3 30. 308. 82.98 6.4
MINIMUM 0.9 0. 3. 50.00 5.0
DATE OF MINIMUM 1989-09-25 1989-01-23 1989-01-23 1989-01-23 1989-11-21
10TH PERCENTILE 2.8 0. 5. 52.40 5.5
MEDIAN 5.6 6. 38. 71.50 6.0
90TH PERCENTILE 7.5 70. 495. 120.80 7.6
MAXIMUM 8.7 215. 3200. 142.00 7.9
DATE OF MAXIMUM 1990-05-29 1989-05-08 1988-01-26 1989-05-08 1989-01-23
STANDARD DEVIATION 2.0 59. 754. 28.97 0.8
SUSP SOL SUSP SOL RESIDUE RESIDUE VOL SUSP
105 DEG 180 DEG FILT TOTAL SOLIDS
10401 10408 10452 10473 10511
mg/L mg/L mg/L mg/L 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 14 7 1 4 4
MEAN 25. 8. 280. 1005. 11.
MINIMUM 7. 2. 185. 10.
DATE OF MINIMUM 1988-04-10 1988-09-12 1990-10-02 1990-01-24
10TH PERCENTILE 7.
MEDIAN 20. 4. 998. 11.
90TH PERCENTILE 48.
MAXIMUM 62. 20. 1840. 12.
DATE OF MAXIMUM 1989-11-21 1989-03-15 1990-01-24 1990-11-26
STANDARD DEVIATION 17. 7. 930. 1.
RESIDUE HARDNESS Mg PO4-P PO4
FIX TOT TOTAL DISS SOL TOTAL
10571 10603 12102 15254 15403
mg/L mg/L mg/L Mg mg/L PO4 mg/L PO4
NO. OF L-FLAGGED VALUES 0 0 0 1 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 4 4 8 5 18
MEAN 789. 570.0 1024. 0.216 0.502
MINIMUM 0. 116.0 3. 0.020 0.064
DATE OF MINIMUM 1990-11-26 1990-10-02 1989-05-08 1988-02-22 1988-02-22
10TH PERCENTILE 0.107
MEDIAN 805. 492.5 644. 0.137 0.331
90TH PERCENTILE 1.262
MAXIMUM 1545. 1179.0 2853. 0.661 1.700
DATE OF MAXIMUM 1990-01-24 1990-03-20 1988-05-31 1988-05-31 1989-05-08
STANDARD DEVIATION 841. 453.4 1066. 0.228 0.470
SULPHATE Cl Ca Ca COLIFORM
DISS DISS HARDNESS TOTAL
16302 17201 20101 20106 36001
mg/L SO4 mg/L Cl mg/L Ca mg/L No/100ml
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 1
NO. OF UNFLAGGED VALUES 16 18 8 3 6
MEAN 481. 2125. 524.375 260.3 21023.
MINIMUM 12. 18. 62.000 360.
DATE OF MINIMUM 1990-10-02 1989-01-23 1988-09-12 1990-11-26
10TH PERCENTILE 16. 26.
MEDIAN 81. 873. 340.000 21000.
90TH PERCENTILE 1553. 5274.
MAXIMUM 2785. 11570. 1602.000 46000.
DATE OF MAXIMUM 1989-04-11 1989-04-11 1988-05-31 1990-07-24
STANDARD DEVIATION 876. 3300. 554.520 19222.
FAEC COL
36011
No/100ml
NO. OF L-FLAGGED VALUES 0
NO. OF G-FLAGGED VALUES 3
NO. OF UNFLAGGED VALUES 11
MEAN 1.4E+05
MINIMUM 2.3E+03
DATE OF MINIMUM 1988-04-10
10TH PERCENTILE 2.3E+03
MEDIAN 4.6E+04
90TH PERCENTILE 2.4E+05
MAXIMUM 1.0E+06
DATE OF MAXIMUM 1988-01-26
STANDARD DEVIATION 2.6E+05
STATION - RIO BALSAS STATION NO. 037006
COUNTRY - MEXICO DEPTH(M) 0.9
LOCATION - OCT. 1 LAT. 17/56/30 LONG. 099/35/30 ELEVATION(M) 499.1
REGIONAL CENTRE - AMRA WATER TYPE RIVER
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-02-18 TO 1990-11-14
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP O2 BOD COD
COND DISS
02041 02061 08101 08201 08301
us/cm deg C mg/L O2 mg/L O2 mg/L O2
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 10 20 19 11 2
MEAN 923. 27.9 6.3 15. 307.
MINIMUM 335. 25.0 4.0 1.
DATE OF MINIMUM 1990-09-10 1989-09-20 1989-05-30 1990-06-18
10TH PERCENTILE 335. 25.0 4.6 1.
MEDIAN 685. 28.0 6.3 3.
90TH PERCENTILE 1700. 29.0 7.8 25.
MAXIMUM 1810. 31.5 8.8 110.
DATE OF MAXIMUM 1990-04-09 1990-05-09 1990-01-30 1989-05-30
STANDARD DEVIATION 546. 1.7 1.3 32.
ALK pH SUSP SOL RESIDUE VOL SUSP
TOTAL 105 DEG TOTAL SOLIDS
10102 10302 10401 10473 10511
mg/L pH UNITS mg/L mg/L 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 20 18 8 1 1
MEAN 148.20 7.8 2562. 4266. 860.
MINIMUM 73.00 6.5 22.
DATE OF MINIMUM 1989-11-15 1990-02-13 1988-02-18
10TH PERCENTILE 78.00 7.1
MEDIAN 150.50 7.9 1750.
90TH PERCENTILE 203.00 8.0
MAXIMUM 233.00 8.4 9913.
DATE OF MAXIMUM 1990-11-14 1990-03-14 1988-06-21
STANDARD DEVIATION 43.90 0.4 3340.
RESIDUE HARDNESS PO4-P PO4 SULPHATE
FIX TOT TOTAL SOL TOTAL
10571 10603 15254 15403 16302
mg/L mg/L mg/L PO4 mg/L PO4 mg/L SO4
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 1 11 19 19 20
MEAN 1966. 569.2 0.111 0.595 322.
MINIMUM 206.0 0.060 0.090 31.
DATE OF MINIMUM 1990-09-10 1988-11-17 1988-11-17 1989-11-15
10TH PERCENTILE 213.4 0.069 0.144 46.
MEDIAN 466.0 0.070 0.340 205.
90TH PERCENTILE 893.3 0.185 1.194 790.
MAXIMUM 963.0 0.390 1.330 1098.
DATE OF MAXIMUM 1990-04-09 1990-10-25 1990-07-11 1988-05-03
STANDARD DEVIATION 279.5 0.090 0.446 287.
Cl Ca COLIFORM FAEC COL FAEC
DISS HARDNESS TOTAL STREP
17201 20106 36001 36011 36101
mg/L Cl mg/L No/100ml No/100ml No/100ml
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 20 11 11 9 12
MEAN 162. 416.0 4.2E+04 8.7E+04 2720.
MINIMUM 6. 99.0 2.3E+03 2.3E+03 40.
DATE OF MINIMUM 1990-10-25 1990-09-10 1990-02-13 1988-02-18 1989-03-28
10TH PERCENTILE 8. 103.1 2.5E+03 50.
MEDIAN 28. 344.0 2.4E+04 9.3E+03 430.
90TH PERCENTILE 375. 728.8 4.6E+04 2370.
MAXIMUM 1999. 774.0 2.4E+05 4.6E+05 24000.
DATE OF MAXIMUM 1989-05-30 1990-04-09 1990-05-09 1988-06-21 1988-06-21
STANDARD DEVIATION 446. 250.3 6.8E+04 1.6E+05 6747.
STATION - RIO ATOYAC STATION NO. 037007
COUNTRY - MEXICO DEPTH(M) 12.0
LOCATION - OCT. 1 LAT. 18/55/30 LONG. 098/16/30 ELEVATION(M)2100.0
REGIONAL CENTRE - AMRA 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 B OIL AND N KJEL
COND DISS GREASE
02041 02061 05101 06521 07004
us/cm deg C mg/L B mg/L mg/L N
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 26 7 11 5
MEAN 987. 19.7 0.4 58. 5.9
MINIMUM 14. 15.0 0.1 2. 2.5
DATE OF MINIMUM 1990-01-04 1988-01-20 1990-05-23 1990-10-25 1988-01-20
10TH PERCENTILE 438. 17.0 2.
MEDIAN 1064. 20.0 0.4 32. 5.3
90TH PERCENTILE 1500. 21.4 81.
MAXIMUM 1696. 25.0 0.5 368. 11.1
DATE OF MAXIMUM 1989-04-25 1988-06-02 1989-11-23 1990-01-23 1988-05-31
STANDARD DEVIATION 406. 2.0 0.2 106. 3.2
NO3NO2 NO3-N NH3 O2 BOD
DISS
07105 07306 07554 08101 08201
mg/L N mg/L N mg/L N mg/L O2 mg/L O2
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 17 11 33 29 33
MEAN 0.98 0.98 9.56 1.1 33.
MINIMUM 0.00 0.14 0.00 0.0 4.
DATE OF MINIMUM 1988-05-31 1990-01-23 1988-07-15 1988-01-20 1989-06-27
10TH PERCENTILE 0.04 0.15 2.04 0.0 7.
MEDIAN 0.18 0.82 10.10 0.0 25.
90TH PERCENTILE 0.98 1.92 15.31 4.9 59.
MAXIMUM 11.11 3.25 17.43 7.3 150.
DATE OF MAXIMUM 1988-06-02 1990-08-23 1989-04-25 1988-07-15 1990-01-04
STANDARD DEVIATION 2.63 0.96 4.67 2.2 31.
COD ALK pH SUSP SOL SUSP SOL
TOTAL 105 DEG 180 DEG
08301 10102 10302 10401 10408
mg/L O2 mg/L pH UNITS mg/L 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 33 19 33 32 17
MEAN 154. 356.20 7.6 961. 102.
MINIMUM 20. 148.00 6.5 12. 8.
DATE OF MINIMUM 1988-07-15 1989-08-22 1990-09-21 1989-02-22 1989-02-22
10TH PERCENTILE 49. 169.60 7.2 33. 14.
MEDIAN 100. 316.00 7.6 214. 92.
90TH PERCENTILE 342. 493.77 7.8 1520. 156.
MAXIMUM 701. 745.00 8.3 17152. 317.
DATE OF MAXIMUM 1990-07-26 1989-05-30 1989-01-31 1990-07-26 1989-10-24
STANDARD DEVIATION 141. 159.63 0.3 3009. 77.
RESIDUE VOL SUSP RESIDUE HARDNESS Na
TOTAL SOLIDS FIX TOT TOTAL DISS
10473 10511 10571 10603 11105
mg/L mg/L mg/L 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 11 6 8 8 7
MEAN 3121. 129. 1291. 373.1 13.
MINIMUM 894. 4. 605. 220.0 2.
DATE OF MINIMUM 1990-01-23 1990-02-22 1990-01-23 1990-09-21 1989-09-26
10TH PERCENTILE 903.
MEDIAN 1657. 106. 1008. 338.5 3.
90TH PERCENTILE 2680.
MAXIMUM 18105. 304. 2299. 578.0 54.
DATE OF MAXIMUM 1990-07-26 1990-05-23 1990-05-23 1990-02-22 1989-07-25
STANDARD DEVIATION 5003. 122. 634. 124.6 20.
Mg PO4-P P ORTHO PO4 Cl
DISS SOL DISS TOTAL DISS
12102 15254 15255 15403 17201
mg/L Mg mg/L PO4 mg/L P mg/L PO4 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 30 1 33 26
MEAN 10. 1.578 1.480 2.578 45.
MINIMUM 2. 0.080 0.360 1.
DATE OF MINIMUM 1990-01-23 1989-08-22 1988-09-15 1989-05-30
10TH PERCENTILE 0.290 0.520 11.
MEDIAN 3. 1.500 2.160 44.
90TH PERCENTILE 2.750 4.943 76.
MAXIMUM 24. 6.730 9.870 82.
DATE OF MAXIMUM 1990-07-26 1990-03-27 1990-03-27 1988-04-18
STANDARD DEVIATION 11. 1.374 2.179 24.
K K Ca Mn COLIFORM
DISS DISS HARDNESS DISS TOTAL
19103 19105 20106 25104 36001
mg/L K mg/L K mg/L mg/L Mn No/100ml
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 32
NO. OF UNFLAGGED VALUES 3 4 6 1 0
MEAN 3.5 2.9 195.5 2.47 1.0E+06
MINIMUM 0.3 48.0 1.0E+06
DATE OF MINIMUM 1989-09-26 1990-09-21 1988-01-20
10TH PERCENTILE 1.0E+06
MEDIAN 0.5 210.0 1.0E+06
90TH PERCENTILE 1.0E+06
MAXIMUM 10.2 315.0 1.0E+06
DATE OF MAXIMUM 1989-07-25 1990-02-22 1990-12-06
STANDARD DEVIATION 4.9 107.1 0.0E+00
FAEC COL INST
DISCHG
36011 97160
No/100ml m3/S
NO. OF L-FLAGGED VALUES 0 0
NO. OF G-FLAGGED VALUES 32 0
NO. OF UNFLAGGED VALUES 0 7
MEAN 1.0E+06 1586.8
MINIMUM 1.0E+06 3.4
DATE OF MINIMUM 1988-01-20 1988-01-20
10TH PERCENTILE 1.0E+06
MEDIAN 1.0E+06 5.5
90TH PERCENTILE 1.0E+06
MAXIMUM 1.0E+06 7093.0
DATE OF MAXIMUM 1990-12-06 1989-07-25
STANDARD DEVIATION 0.0E+00 2845.5
STATION - RIO BLANCO STATION NO. 037008
COUNTRY - MEXICO DEPTH(M) 1.1
LOCATION - OCT. 1 LAT. 18/44/30 LONG. 096/26/00 ELEVATION(M) 91.0
REGIONAL CENTRE - AMRA WATER TYPE RIVER
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-01-25 TO 1990-11-07
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP OIL AND NO3NO2 NO3-N
COND GREASE
02041 02061 06521 07105 07306
us/cm deg C mg/L mg/L N mg/L N
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 18 20 3 13 7
MEAN 473. 22.3 30. 1.28 0.67
MINIMUM 290. 18.0 0.54 0.16
DATE OF MINIMUM 1988-09-12 1990-02-27 1988-01-25 1990-03-21
10TH PERCENTILE 306. 18.0 0.58
MEDIAN 445. 22.0 1.11 0.79
90TH PERCENTILE 570. 26.0 1.74
MAXIMUM 950. 29.0 2.89 1.04
DATE OF MAXIMUM 1988-03-09 1990-05-30 1989-03-15 1990-07-16
STANDARD DEVIATION 146. 3.1 0.62 0.38
NH3 O2 BOD COD ALK
DISS TOTAL
07554 08101 08201 08301 10102
mg/L N mg/L O2 mg/L O2 mg/L O2 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 1 20 17 20 18
MEAN 0.00 3.7 11. 69. 205.10
MINIMUM 0.8 0. 7. 90.00
DATE OF MINIMUM 1989-05-09 1989-01-24 1988-09-12 1989-01-24
10TH PERCENTILE 1.0 0. 11. 139.60
MEDIAN 3.3 10. 56. 203.00
90TH PERCENTILE 6.0 22. 102. 248.30
MAXIMUM 8.5 40. 288. 280.00
DATE OF MAXIMUM 1988-09-12 1988-04-04 1989-01-24 1990-03-21
STANDARD DEVIATION 2.0 10. 63. 47.11
pH SUSP SOL SUSP SOL RESIDUE RESIDUE
105 DEG 180 DEG FILT TOTAL
10302 10401 10408 10452 10473
pH UNITS mg/L mg/L mg/L 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 20 14 7 1 4
MEAN 6.6 26. 15. 215. 386.
MINIMUM 5.0 5. 2. 190.
DATE OF MINIMUM 1989-11-21 1988-05-02 1988-05-02 1990-10-02
10TH PERCENTILE 6.0 8.
MEDIAN 6.0 16. 12. 390.
90TH PERCENTILE 7.6 40.
MAXIMUM 7.8 95. 37. 575.
DATE OF MAXIMUM 1989-01-24 1988-04-04 1988-04-04 1990-11-07
STANDARD DEVIATION 0.8 22. 12. 158.
VOL SUSP RESIDUE HARDNESS Mg PO4-P
SOLIDS FIX TOT TOTAL DISS SOL
10511 10571 10603 12102 15254
mg/L mg/L mg/L mg/L Mg mg/L PO4
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 4 4 9 7
MEAN 21. 190. 236.0 67. 0.426
MINIMUM 10. 0. 203.0 21. 0.129
DATE OF MINIMUM 1990-03-21 1990-10-02 1990-10-02 1989-05-09 1988-09-12
10TH PERCENTILE
MEDIAN 15. 178. 240.0 58. 0.482
90TH PERCENTILE
MAXIMUM 44. 405. 261.0 173. 0.630
DATE OF MAXIMUM 1990-11-07 1990-11-07 1990-01-31 1989-03-15 1989-01-24
STANDARD DEVIATION 16. 167. 24.1 47. 0.177
PO4 SULPHATE Cl Ca Ca
TOTAL DISS DISS HARDNESS
15403 16302 17201 20101 20106
mg/L PO4 mg/L SO4 mg/L Cl mg/L Ca 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 20 16 16 8 4
MEAN 1.211 29. 20. 234.250 148.5
MINIMUM 0.041 8. 10. 99.000 24.0
DATE OF MINIMUM 1989-07-18 1989-04-12 1988-09-12 1989-03-15 1990-10-02
10TH PERCENTILE 0.065 9. 10.
MEDIAN 0.895 28. 21. 257.500 189.0
90TH PERCENTILE 2.940 50. 30.
MAXIMUM 4.580 54. 33. 297.000 192.0
DATE OF MAXIMUM 1990-02-27 1989-01-24 1988-03-09 1988-03-09 1990-03-21
STANDARD DEVIATION 1.240 15. 8. 65.224 83.0
COLIFORM FAEC COL
TOTAL
36001 36011
No/100ml No/100ml
NO. OF L-FLAGGED VALUES 0 0
NO. OF G-FLAGGED VALUES 1 1
NO. OF UNFLAGGED VALUES 15 11
MEAN 6.7E+04 3.8E+04
MINIMUM 4.3E+03 4.3E+03
DATE OF MINIMUM 1988-02-22 1988-02-22
10TH PERCENTILE 4.3E+03 4.3E+03
MEDIAN 3.0E+04 1.2E+04
90TH PERCENTILE 2.4E+05 4.6E+04
MAXIMUM 2.4E+05 2.4E+05
DATE OF MAXIMUM 1990-07-16 1988-01-25
STANDARD DEVIATION 8.9E+04 6.6E+04
STATION - LAGO DE CHAPALA STATION NO. 037009
COUNTRY - MEXICO DEPTH(M) 6.0
LOCATION - OCT. 1 LAT. 20/16/20 LONG. 103/02/17 ELEVATION(M)1525.0
REGIONAL CENTRE - AMRA WATER TYPE LAKE
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-02-02 TO 1990-12-07
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP TEMP OIL AND N KJEL
COND GREASE
02041 02061 02062 06521 07004
us/cm deg C deg C mg/L mg/L N
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 23 20 15 7 5
MEAN 930. 22.9 0.1 51. 1.2
MINIMUM 760. 17.0 0.0 11. 0.8
DATE OF MINIMUM 1989-02-17 1989-12-08 1989-09-25 1990-01-30 1988-07-13
10TH PERCENTILE 806. 18.5 0.0
MEDIAN 890. 21.8 0.1 44. 1.1
90TH PERCENTILE 1156. 28.4 0.2
MAXIMUM 1280. 30.0 0.7 94. 1.7
DATE OF MAXIMUM 1990-05-24 1990-06-14 1989-02-17 1990-10-18 1989-06-21
STANDARD DEVIATION 137. 3.9 0.2 29. 0.4
NO3-N NH3 O2 BOD COD
DISS
07306 07554 08101 08201 08301
mg/L N mg/L N mg/L O2 mg/L O2 mg/L O2
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 11 25 24 25 25
MEAN 0.16 0.26 6.9 2. 27.
MINIMUM 0.10 0.02 3.5 0. 5.
DATE OF MINIMUM 1990-01-30 1989-10-13 1989-09-25 1990-09-14 1989-02-17
10TH PERCENTILE 0.10 0.03 5.2 1. 17.
MEDIAN 0.13 0.16 6.9 1. 29.
90TH PERCENTILE 0.26 0.62 8.3 3. 33.
MAXIMUM 0.34 0.99 9.0 4. 38.
DATE OF MAXIMUM 1990-10-18 1990-05-24 1989-02-17 1988-06-07 1989-06-21
STANDARD DEVIATION 0.08 0.26 1.2 1. 7.
ALK ALK pH SUSP SOL SUSP SOL
TOTAL PHENOL 105 DEG 180 DEG
10102 10151 10302 10401 10408
mg/L mg/L pH UNITS mg/L 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 22 10 25 25 9
MEAN 328.95 54.9 8.7 41. 19.
MINIMUM 283.00 30.0 8.0 7. 8.
DATE OF MINIMUM 1990-09-14 1990-09-14 1989-07-14 1990-11-23 1989-12-08
10TH PERCENTILE 296.20 30.0 8.4 10.
MEDIAN 324.50 48.5 8.6 30. 14.
90TH PERCENTILE 368.60 73.0 9.1 82.
MAXIMUM 385.00 90.0 9.2 190. 70.
DATE OF MAXIMUM 1990-06-14 1990-11-23 1990-06-14 1990-08-29 1989-10-13
STANDARD DEVIATION 26.82 18.4 0.3 40. 19.
RESIDUE RESIDUE FIX SUSP VOL SUSP RESIDUE
FILT TOTAL SOLIDS SOLIDS TOT VOL
10452 10473 10501 10511 10521
mg/L mg/L mg/L mg/L 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 11 11 11 11 11
MEAN 708. 758. 26. 26. 216.
MINIMUM 310. 376. 3. 4. 106.
DATE OF MINIMUM 1990-09-14 1990-09-14 1990-11-23 1990-11-23 1990-05-24
10TH PERCENTILE 327. 397. 3. 4. 108.
MEDIAN 744. 766. 10. 13. 200.
90TH PERCENTILE 922. 944. 53. 56. 316.
MAXIMUM 974. 990. 138. 85. 330.
DATE OF MAXIMUM 1990-02-28 1990-02-28 1990-08-29 1990-10-18 1990-02-28
STANDARD DEVIATION 190. 172. 40. 27. 76.
VOL DISS RESIDUE RESIDUE HARDNESS PO4-P
SOLIDS FIXED FIX TOT TOTAL SOL
10531 10551 10571 10603 15254
mg/L mg/L mg/L mg/L mg/L PO4
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 11 11 11 10 25
MEAN 190. 518. 544. 220.3 0.410
MINIMUM 83. 132. 140. 186.0 0.250
DATE OF MINIMUM 1990-10-18 1990-09-14 1990-09-14 1990-09-14 1988-07-13
10TH PERCENTILE 85. 157. 167. 186.0 0.270
MEDIAN 182. 583. 600. 226.0 0.400
90TH PERCENTILE 267. 682. 691. 245.0 0.520
MAXIMUM 325. 692. 700. 249.0 0.920
DATE OF MAXIMUM 1990-02-28 1990-06-14 1990-06-14 1990-05-24 1988-06-07
STANDARD DEVIATION 77. 175. 166. 22.8 0.135
PO4 SULPHATE Cl Ca Ca
TOTAL DISS DISS HARDNESS
15403 16302 17203 20103 20106
mg/L PO4 mg/L SO4 mg/L Cl mg/L Ca 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 25 11 1 1 10
MEAN 0.585 98. 37. 140.000 111.8
MINIMUM 0.280 24. 93.0
DATE OF MINIMUM 1988-07-13 1990-01-30 1990-05-24
10TH PERCENTILE 0.430 29. 93.0
MEDIAN 0.600 98. 105.5
90TH PERCENTILE 0.665 128. 131.0
MAXIMUM 1.200 139. 135.0
DATE OF MAXIMUM 1988-06-07 1990-06-14 1990-01-30
STANDARD DEVIATION 0.160 31. 16.4
COLIFORM FAEC COL
TOTAL
36001 36011
No/100ml No/100ml
NO. OF L-FLAGGED VALUES 0 0
NO. OF G-FLAGGED VALUES 0 0
NO. OF UNFLAGGED VALUES 3 4
MEAN 7681. 586.
MINIMUM 3.
DATE OF MINIMUM 1988-07-13
10TH PERCENTILE
MEDIAN 172.
90TH PERCENTILE
MAXIMUM 2000.
DATE OF MAXIMUM 1990-09-14
STANDARD DEVIATION 951.
STATION - PRESA DE LA AMISTAD STATION NO. 037010
COUNTRY - MEXICO DEPTH(M) 32.0
LOCATION - OCT. 1 LAT. 29/25/25 LONG. 101/02/20 ELEVATION(M) 316.0
REGIONAL CENTRE - AMRA WATER TYPE LAKE
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-04-20 TO 1990-11-22
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP NO3NO2 ORG. N NH3
COND DISS
02041 02061 07105 07401 07554
us/cm deg C mg/L N mg/L N mg/L N
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 15 6 10 1 1
MEAN 1264. 21.0 1.22 0.7 0.08
MINIMUM 910. 4.0 0.02
DATE OF MINIMUM 1990-11-22 1989-01-26 1989-01-26
10TH PERCENTILE 930. 0.02
MEDIAN 1248. 21.5 0.08
90TH PERCENTILE 1440. 0.65
MAXIMUM 1600. 34.0 10.80
DATE OF MAXIMUM 1989-06-29 1988-08-24 1989-11-30
STANDARD DEVIATION 187. 10.5 3.37
O2 BOD COD ALK pH
DISS TOTAL
08101 08201 08301 10102 10302
mg/L O2 mg/L O2 mg/L O2 mg/L pH UNITS
NO. OF L-FLAGGED VALUES 0 3 1 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 11 12 13 15 12
MEAN 8.3 1. 15. 146.92 8.4
MINIMUM 6.6 0. 0. 25.00 8.1
DATE OF MINIMUM 1989-08-19 1990-07-03 1990-04-30 1989-06-29 1990-04-30
10TH PERCENTILE 6.6 0. 1. 66.00 8.1
MEDIAN 8.9 1. 8. 137.50 8.4
90TH PERCENTILE 9.4 2. 31. 212.00 8.7
MAXIMUM 10.3 4. 68. 240.00 8.8
DATE OF MAXIMUM 1989-01-26 1989-11-30 1988-08-24 1989-11-30 1989-04-12
STANDARD DEVIATION 1.3 1. 19. 52.75 0.2
SUSP SOL SUSP SOL RESIDUE RESIDUE HARDNESS
105 DEG 180 DEG FILT TOTAL TOTAL
10401 10408 10452 10473 10603
mg/L mg/L mg/L mg/L 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 8 2 2 5 5
MEAN 40. 6. 640. 801. 309.4
MINIMUM 2. 655. 282.0
DATE OF MINIMUM 1989-04-12 1990-04-30 1990-07-03
10TH PERCENTILE
MEDIAN 10. 815. 297.0
90TH PERCENTILE
MAXIMUM 221. 984. 350.0
DATE OF MAXIMUM 1990-03-06 1990-03-06 1990-04-30
STANDARD DEVIATION 74. 124. 29.5
PO4 SULPHATE Cl Ca COLIFORM
TOTAL DISS HARDNESS TOTAL
15403 16302 17201 20106 36001
mg/L PO4 mg/L SO4 mg/L Cl mg/L No/100ml
NO. OF L-FLAGGED VALUES 2 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 0 13 12 5 3
MEAN 0.035 264. 172. 223.8 130.
MINIMUM 189. 99. 181.0
DATE OF MINIMUM 1989-10-26 1989-06-29 1990-09-10
10TH PERCENTILE 195. 99.
MEDIAN 252. 169. 228.0
90TH PERCENTILE 320. 237.
MAXIMUM 391. 265. 259.0
DATE OF MAXIMUM 1988-12-01 1988-06-08 1990-07-03
STANDARD DEVIATION 55. 52. 28.3
FAEC COL FAEC
STREP
36011 36101
No/100ml No/100ml
NO. OF L-FLAGGED VALUES 0 0
NO. OF G-FLAGGED VALUES 0 0
NO. OF UNFLAGGED VALUES 1 2
MEAN 73. 0.
MINIMUM
DATE OF MINIMUM
10TH PERCENTILE
MEDIAN
90TH PERCENTILE
MAXIMUM
DATE OF MAXIMUM
STANDARD DEVIATION
STATION - POZO HACIENDA TAHDZIBICHEN STATION NO. 037011
COUNTRY - MEXICO DEPTH(M) 9999.9
LOCATION - OCT. 0 LAT. 20/27/50 LONG. 089/37/30 ELEVATION(M) 1.5
REGIONAL CENTRE - AMRA WATER TYPE GROUNDWATER
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-02-09 TO 1990-12-17
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP NO3NO2 NO3-N O2
COND DISS
02041 02061 07105 07306 08101
us/cm deg C mg/L N mg/L N mg/L O2
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 22 21 12 10 22
MEAN 1167. 27.9 5.17 4.53 4.0
MINIMUM 960. 25.6 3.20 2.90 0.7
DATE OF MINIMUM 1989-04-15 1990-12-17 1989-08-15 1990-04-17 1990-10-23
10TH PERCENTILE 984. 26.1 3.34 2.90 2.1
MEDIAN 1200. 28.0 4.95 4.25 4.4
90TH PERCENTILE 1300. 29.0 6.44 6.20 5.0
MAXIMUM 1380. 30.0 8.50 6.20 5.5
DATE OF MAXIMUM 1988-08-22 1989-06-15 1989-11-13 1990-12-17 1990-07-10
STANDARD DEVIATION 129. 1.0 1.38 1.12 1.2
BOD COD ALK pH HARDNESS
TOTAL TOTAL
08201 08301 10102 10302 10603
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 4 22 22 22 10
MEAN 3. 19. 328.02 7.1 448.4
MINIMUM 2. 8. 0.00 6.5 416.0
DATE OF MINIMUM 1988-08-22 1989-02-13 1989-02-13 1988-02-09 1990-05-21
10TH PERCENTILE 8. 314.20 6.8 416.0
MEDIAN 2. 17. 348.00 7.1 438.5
90TH PERCENTILE 29. 356.00 7.5 487.0
MAXIMUM 7. 45. 365.20 7.9 529.0
DATE OF MAXIMUM 1989-02-13 1989-07-15 1988-04-18 1989-08-15 1990-06-11
STANDARD DEVIATION 2. 9. 74.71 0.3 34.6
Mg SULPHATE Cl Ca Ca
DISS DISS DISS HARDNESS
12102 16302 17201 20101 20106
mg/L Mg mg/L SO4 mg/L Cl mg/L Ca 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 22 22 22 22 10
MEAN 43. 28. 187. 108.227 285.2
MINIMUM 25. 15. 179. 86.000 244.0
DATE OF MINIMUM 1990-05-21 1989-02-13 1990-12-17 1989-06-15 1990-02-12
10TH PERCENTILE 37. 19. 180. 97.000 244.0
MEDIAN 44. 27. 186. 104.000 284.5
90TH PERCENTILE 50. 34. 196. 126.600 317.0
MAXIMUM 54. 44. 199. 139.000 343.0
DATE OF MAXIMUM 1989-10-15 1988-08-22 1988-08-22 1989-05-15 1990-06-11
STANDARD DEVIATION 6. 6. 6. 13.811 31.6
COLIFORM FAEC COL
TOTAL
36001 36011
No/100ml No/100ml
NO. OF L-FLAGGED VALUES 1 2
NO. OF G-FLAGGED VALUES 1 1
NO. OF UNFLAGGED VALUES 18 19
MEAN 5302. 3691.
MINIMUM 30. 30.
DATE OF MINIMUM 1989-07-15 1988-02-09
10TH PERCENTILE 93. 32.
MEDIAN 445. 230.
90TH PERCENTILE 24000. 18400.
MAXIMUM 24000. 24000.
DATE OF MAXIMUM 1989-08-15 1989-08-15
STANDARD DEVIATION 9417. 8080.
STATION - POZO EN AGUASCALIENTES STATION NO. 037012
COUNTRY - MEXICO DEPTH(M) 120.0
LOCATION - OCT. 1 LAT. 21/53/00 LONG. 103/18/00 ELEVATION(M)1850.0
REGIONAL CENTRE - AMRA WATER TYPE GROUNDWATER
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-01-12 TO 1990-10-02
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP NO3NO2 NO3-N NH3
COND
02041 02061 07105 07306 07554
us/cm deg C mg/L N mg/L N mg/L N
NO. OF L-FLAGGED VALUES 0 0 0 0 3
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 4 8 7 3 3
MEAN 742. 30.9 2.38 2.16 0.05
MINIMUM 600. 29.0 1.43 0.03
DATE OF MINIMUM 1988-01-12 1988-01-12 1989-10-03 1989-10-03
10TH PERCENTILE
MEDIAN 670. 30.0 2.30 0.05
90TH PERCENTILE
MAXIMUM 1030. 36.0 3.71 0.05
DATE OF MAXIMUM 1990-03-13 1990-06-05 1988-01-12 1989-01-03
STANDARD DEVIATION 195. 2.2 0.77 0.01
BOD ALK pH SUSP SOL RESIDUE
TOTAL 105 DEG TOTAL
08201 10102 10302 10401 10473
mg/L O2 mg/L pH UNITS mg/L mg/L
NO. OF L-FLAGGED VALUES 2 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 4 7 10 5 3
MEAN 1. 292.14 7.2 5. 507.
MINIMUM 0. 250.00 7.0 1.
DATE OF MINIMUM 1989-10-03 1989-01-03 1988-07-13 1989-01-03
10TH PERCENTILE 7.0
MEDIAN 0. 299.00 7.1 2.
90TH PERCENTILE 7.8
MAXIMUM 3. 315.00 7.9 16.
DATE OF MAXIMUM 1990-03-13 1988-01-12 1990-06-05 1990-10-02
STANDARD DEVIATION 1. 21.29 0.3 6.
HARDNESS Mg PO4 SULPHATE Cl
TOTAL DISS TOTAL DISS
10603 12102 15403 16302 17201
mg/L mg/L Mg mg/L PO4 mg/L SO4 mg/L Cl
NO. OF L-FLAGGED VALUES 0 0 3 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 3 2 3 9 7
MEAN 188.7 58. 0.138 59. 19.
MINIMUM 0.020 44. 11.
DATE OF MINIMUM 1988-01-12 1989-01-03 1990-10-02
10TH PERCENTILE
MEDIAN 0.070 60. 21.
90TH PERCENTILE
MAXIMUM 0.450 78. 24.
DATE OF MAXIMUM 1990-10-02 1988-10-03 1989-04-03
STANDARD DEVIATION 0.169 10. 6.
Ca Ca COLIFORM FAEC COL FAEC
DISS HARDNESS TOTAL STREP
20101 20106 36001 36011 36101
mg/L Ca mg/L No/100ml No/100ml No/100ml
NO. OF L-FLAGGED VALUES 0 0 6 6 1
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 1 3 4 0 0
MEAN 134.000 169.0 4. 3. 3.
MINIMUM 0. 3.
DATE OF MINIMUM 1988-10-03 1988-01-12
10TH PERCENTILE 0.
MEDIAN 3. 3.
90TH PERCENTILE 7.
MAXIMUM 9. 3.
DATE OF MAXIMUM 1989-10-03 1990-10-02
STANDARD DEVIATION 3. 0.
STATION - POZO EN LA REGION LAGUNERA STATION NO. 037013
COUNTRY - MEXICO DEPTH(M) 200.0
LOCATION - OCT. 1 LAT. 25/26/00 LONG. 103/00/00 ELEVATION(M)1100.0
REGIONAL CENTRE - AMRA WATER TYPE GROUNDWATER
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-02-29 TO 1990-11-26
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP ALK pH RESIDUE
COND TOTAL FILT
02041 02061 10102 10302 10452
us/cm deg C 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 25 4 24 24 2
MEAN 1501. 19.9 212.92 7.4 961.
MINIMUM 2. 7.5 184.00 7.0
DATE OF MINIMUM 1988-04-26 1988-04-26 1988-08-30 1989-04-15
10TH PERCENTILE 1462. 196.00 7.0
MEDIAN 1568. 22.0 214.00 7.3
90TH PERCENTILE 1642. 233.00 7.9
MAXIMUM 1690. 28.0 236.00 8.2
DATE OF MAXIMUM 1990-02-23 1990-01-19 1990-08-18 1988-02-29
STANDARD DEVIATION 318. 8.7 13.68 0.3
HARDNESS Mg SULPHATE Cl Ca
TOTAL DISS DISS DISS
10603 12102 16302 17201 20101
mg/L mg/L Mg mg/L SO4 mg/L Cl mg/L Ca
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 8 26 26 25 26
MEAN 556.2 45. 406. 107. 130.720
MINIMUM 505.0 6. 212. 86. 92.180
DATE OF MINIMUM 1990-08-18 1988-08-30 1990-11-26 1988-04-26 1989-01-31
10TH PERCENTILE 24. 327. 88. 96.191
MEDIAN 540.0 45. 420. 104. 132.264
90TH PERCENTILE 60. 466. 125. 144.284
MAXIMUM 670.0 75. 494. 192. 168.330
DATE OF MAXIMUM 1990-02-23 1989-01-31 1990-05-31 1990-01-19 1990-02-23
STANDARD DEVIATION 51.0 15. 61. 22. 16.874
Cu As Pb
DISS TOTAL DISS
29106 33003 82101
mg/L Cu mg/L As mg/L Pb
NO. OF L-FLAGGED VALUES 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0
NO. OF UNFLAGGED VALUES 7 4 7
MEAN 0.001 0.017 0.007
MINIMUM 0.000 0.010 0.000
DATE OF MINIMUM 1989-02-28 1990-03-27 1989-03-03
10TH PERCENTILE
MEDIAN 0.000 0.016 0.000
90TH PERCENTILE
MAXIMUM 0.007 0.024 0.029
DATE OF MAXIMUM 1989-06-15 1990-02-23 1989-07-27
STANDARD DEVIATION 0.002 0.007 0.012
STATION - RIO LERMA STATION NO. 037014
COUNTRY - MEXICO DEPTH(M) 9999.9
LOCATION - OCT. 1 LAT. 20/34/00 LONG. 101/12/00 ELEVATION(M)9999.9
REGIONAL CENTRE - AMRA WATER TYPE RIVER
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-01-26 TO 1990-11-29
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP B OIL AND O2
COND DISS GREASE DISS
02041 02061 05101 06521 08101
us/cm deg C mg/L B mg/L mg/L O2
NO. OF L-FLAGGED VALUES 0 0 1 0 6
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 12 11 9 4 3
MEAN 1700. 24.4 0.9 44. 1.1
MINIMUM 511. 6.0 0.1 21. 0.0
DATE OF MINIMUM 1989-02-20 1989-08-27 1989-08-27 1990-11-29 1988-01-26
10TH PERCENTILE 522. 7.2 0.1
MEDIAN 2272. 26.0 0.9 46. 0.1
90TH PERCENTILE 2382. 29.0 1.6
MAXIMUM 2622. 33.0 2.0 63. 6.1
DATE OF MAXIMUM 1989-11-23 1989-05-08 1989-05-08 1990-08-29 1990-05-28
STANDARD DEVIATION 847. 7.2 0.7 22. 2.1
BOD COD pH RESIDUE HARDNESS
TOTAL TOTAL
08201 08301 10302 10473 10603
mg/L O2 mg/L O2 pH UNITS mg/L 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 11 3 12 4 4
MEAN 101. 203. 7.5 1315. 149.1
MINIMUM 20. 6.0 674. 137.5
DATE OF MINIMUM 1989-02-20 1989-08-27 1990-05-28 1990-05-28
10TH PERCENTILE 21. 6.2
MEDIAN 113. 7.6 1216. 147.0
90TH PERCENTILE 178. 8.1
MAXIMUM 203. 8.2 2154. 165.0
DATE OF MAXIMUM 1990-02-27 1988-11-21 1990-11-29 1990-08-29
STANDARD DEVIATION 61. 0.6 711. 13.2
Na Mg PO4-P PO4 Ca
DISS DISS SOL TOTAL DISS
11105 12102 15254 15403 20101
mg/L Na mg/L Mg mg/L PO4 mg/L PO4 mg/L Ca
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 6 7 1 12 7
MEAN 306. 27. 0.925 4.740 45.543
MINIMUM 129. 13. 0.342 15.000
DATE OF MINIMUM 1990-05-28 1989-02-20 1989-02-20 1990-11-29
10TH PERCENTILE 0.354
MEDIAN 327. 19. 2.775 28.200
90TH PERCENTILE 11.350
MAXIMUM 466. 70. 14.200 159.000
DATE OF MAXIMUM 1988-01-26 1989-08-27 1989-11-23 1989-08-27
STANDARD DEVIATION 147. 19. 4.776 50.552
Ca Fe COLIFORM FAEC COL
HARDNESS TOTAL TOTAL
20106 26004 36001 36011
mg/L mg/L Fe No/100ml No/100ml
NO. OF L-FLAGGED VALUES 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 3 7
NO. OF UNFLAGGED VALUES 4 1 0 3
MEAN 62.3 2.12 6.7E+05 6.8E+05
MINIMUM 37.5 2.4E+04
DATE OF MINIMUM 1990-11-29 1989-02-20
10TH PERCENTILE 2.4E+04
MEDIAN 58.5 1.0E+06
90TH PERCENTILE 1.0E+06
MAXIMUM 95.0 1.0E+06
DATE OF MAXIMUM 1990-08-29 1988-08-02
STANDARD DEVIATION 23.9 4.2E+05
STATION - RIO USUMACINTA STATION NO. 037015
COUNTRY - MEXICO DEPTH(M) 24.0
LOCATION - OCT. 1 LAT. 17/51/40 LONG. 092/47/10 ELEVATION(M)9999.9
REGIONAL CENTRE - AMRA WATER TYPE RIVER
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-01-14 TO 1990-11-19
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP OIL AND NO3NO2 NO3-N
COND GREASE
02041 02061 06521 07105 07306
us/cm deg C mg/L mg/L N mg/L N
NO. OF L-FLAGGED VALUES 10 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 16 32 14 17 15
MEAN 283. 27.8 14. 0.38 0.13
MINIMUM 1. 22.0 2. 0.10 0.03
DATE OF MINIMUM 1988-09-21 1990-11-19 1990-05-31 1989-10-05 1990-02-26
10TH PERCENTILE 1. 25.0 3. 0.10 0.05
MEDIAN 364. 28.0 10. 0.31 0.10
90TH PERCENTILE 570. 30.8 26. 0.55 0.20
MAXIMUM 700. 35.0 40. 1.24 0.20
DATE OF MAXIMUM 1990-02-26 1990-05-04 1990-08-13 1989-02-02 1990-06-26
STANDARD DEVIATION 244. 2.5 11. 0.27 0.06
NH3 O2 BOD COD ALK
DISS TOTAL
07554 08101 08201 08301 10102
mg/L N mg/L O2 mg/L O2 mg/L O2 mg/L
NO. OF L-FLAGGED VALUES 2 0 1 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 30 32 28 32 28
MEAN 0.09 7.5 2. 16. 132.29
MINIMUM 0.00 5.0 0. 3. 101.00
DATE OF MINIMUM 1990-01-11 1988-09-21 1989-04-27 1988-12-08 1989-06-30
10TH PERCENTILE 0.00 6.0 0. 4. 102.80
MEDIAN 0.01 7.0 1. 16. 128.00
90TH PERCENTILE 0.10 8.8 3. 24. 151.70
MAXIMUM 1.00 10.0 4. 47. 242.00
DATE OF MAXIMUM 1989-05-31 1989-04-27 1990-08-13 1990-06-08 1988-01-14
STANDARD DEVIATION 0.24 1.0 1. 9. 27.14
pH SUSP SOL SUSP SOL RESIDUE VOL SUSP
105 DEG 180 DEG TOTAL SOLIDS
10302 10401 10408 10473 10511
pH UNITS mg/L mg/L mg/L 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 32 32 14 3 3
MEAN 7.5 83. 21. 681. 23.
MINIMUM 6.3 26. 10.
DATE OF MINIMUM 1990-08-13 1990-08-13 1988-04-06
10TH PERCENTILE 6.6 31. 10.
MEDIAN 7.6 62. 23.
90TH PERCENTILE 8.1 160. 32.
MAXIMUM 8.2 272. 34.
DATE OF MAXIMUM 1989-04-27 1990-11-19 1989-09-26
STANDARD DEVIATION 0.5 57. 9.
HARDNESS PO4-P PO4 SULPHATE Cl
TOTAL SOL TOTAL DISS
10603 15254 15403 16302 17201
mg/L mg/L PO4 mg/L PO4 mg/L SO4 mg/L Cl
NO. OF L-FLAGGED VALUES 0 0 1 1 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 15 13 26 31 32
MEAN 273.4 0.155 0.234 100. 9.
MINIMUM 180.0 0.010 0.010 0. 3.
DATE OF MINIMUM 1990-11-19 1990-04-05 1990-01-11 1990-02-26 1990-09-14
10TH PERCENTILE 190.0 0.010 0.010 22. 5.
MEDIAN 255.0 0.020 0.130 109. 7.
90TH PERCENTILE 369.5 0.107 0.768 166. 13.
MAXIMUM 390.0 1.430 1.040 204. 36.
DATE OF MAXIMUM 1990-06-08 1988-08-12 1988-12-08 1988-03-09 1990-08-29
STANDARD DEVIATION 67.4 0.386 0.300 55. 7.
Ca COLIFORM FAEC COL INST
HARDNESS TOTAL DISCHG
20106 36001 36011 97160
mg/L No/100ml No/100ml m3/S
NO. OF L-FLAGGED VALUES 0 2 9 11
NO. OF G-FLAGGED VALUES 0 0 0 0
NO. OF UNFLAGGED VALUES 15 30 23 0
MEAN 252.9 1.2E+04 5.2E+03 1.0
MINIMUM 155.0 1.0E+00 1.0E+00 1.0
DATE OF MINIMUM 1990-11-19 1988-10-28 1988-09-21 1988-09-21
10TH PERCENTILE 164.0 5.2E+01 1.0E+00 1.0
MEDIAN 215.0 1.8E+03 4.3E+02 1.0
90TH PERCENTILE 345.0 1.1E+04 4.2E+03 1.0
MAXIMUM 360.0 2.4E+05 1.1E+05 1.0
DATE OF MAXIMUM 1990-05-04 1988-01-14 1988-01-14 1989-11-16
STANDARD DEVIATION 67.4 4.2E+04 2.0E+04 0.0
STATION - RIO GRIJALVA STATION NO. 037016
COUNTRY - MEXICO DEPTH(M) 3.0
LOCATION - OCT. 1 LAT. 17/59/20 LONG. 092/34/50 ELEVATION(M)9999.9
REGIONAL CENTRE - AMRA WATER TYPE RIVER
PERIOD REQUESTED FROM - 1988-01-01 TO 1990-12-31
PERIOD OF RECORD FROM - 1988-01-07 TO 1990-12-03
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP OIL AND NO3NO2 NO3-N
COND GREASE
02041 02061 06521 07105 07306
us/cm deg C mg/L mg/L N mg/L N
NO. OF L-FLAGGED VALUES 11 0 0 1 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 19 38 17 21 17
MEAN 236. 27.1 17. 0.60 0.28
MINIMUM 1. 22.0 1. 0.00 0.03
DATE OF MINIMUM 1988-11-07 1988-10-06 1990-03-01 1989-10-02 1990-11-05
10TH PERCENTILE 1. 22.8 2. 0.05 0.04
MEDIAN 286. 27.0 13. 0.46 0.15
90TH PERCENTILE 430. 32.0 29. 1.11 0.40
MAXIMUM 700. 33.0 69. 2.03 2.00
DATE OF MAXIMUM 1990-05-02 1990-05-02 1990-06-09 1988-06-27 1990-06-09
STANDARD DEVIATION 202. 3.2 16. 0.58 0.46
NH3 O2 BOD COD ALK
DISS TOTAL
07554 08101 08201 08301 10102
mg/L N mg/L O2 mg/L O2 mg/L O2 mg/L
NO. OF L-FLAGGED VALUES 1 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 38 39 36 39 35
MEAN 0.08 5.3 3. 23. 116.40
MINIMUM 0.00 2.0 0. 8. 87.00
DATE OF MINIMUM 1990-03-01 1989-10-02 1989-08-07 1990-08-27 1990-01-15
10TH PERCENTILE 0.00 3.0 1. 12. 95.00
MEDIAN 0.01 6.0 2. 23. 117.00
90TH PERCENTILE 0.18 7.0 6. 32. 138.00
MAXIMUM 1.00 8.0 9. 54. 151.00
DATE OF MAXIMUM 1989-04-08 1990-05-02 1988-06-27 1990-08-01 1989-01-05
STANDARD DEVIATION 0.18 1.4 2. 10. 16.53
pH SUSP SOL SUSP SOL RESIDUE VOL SUSP
105 DEG 180 DEG TOTAL SOLIDS
10302 10401 10408 10473 10511
pH UNITS mg/L mg/L mg/L 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 39 31 18 3 3
MEAN 7.2 89. 16. 376. 11.
MINIMUM 6.1 14. 4.
DATE OF MINIMUM 1990-01-15 1989-02-01 1988-08-03
10TH PERCENTILE 6.5 14. 7.
MEDIAN 7.2 46. 16.
90TH PERCENTILE 7.9 207. 26.
MAXIMUM 8.2 598. 30.
DATE OF MAXIMUM 1989-06-05 1990-12-03 1989-09-04
STANDARD DEVIATION 0.6 122. 8.
HARDNESS PO4-P PO4 SULPHATE Cl
TOTAL SOL TOTAL DISS
10603 15254 15403 16302 17201
mg/L mg/L PO4 mg/L PO4 mg/L SO4 mg/L Cl
NO. OF L-FLAGGED VALUES 0 0 2 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 16 14 30 38 39
MEAN 175.6 0.175 0.332 47. 23.
MINIMUM 110.0 0.010 0.010 11. 3.
DATE OF MINIMUM 1990-01-15 1990-07-03 1989-10-02 1989-04-08 1990-12-03
10TH PERCENTILE 122.0 0.014 0.052 25. 8.
MEDIAN 167.5 0.100 0.140 38. 19.
90TH PERCENTILE 230.0 0.250 1.000 71. 36.
MAXIMUM 280.0 1.000 1.430 118. 58.
DATE OF MAXIMUM 1990-06-09 1990-12-03 1988-12-02 1989-05-31 1990-05-02
STANDARD DEVIATION 42.2 0.250 0.394 23. 13.
Ca COLIFORM FAEC COL INST
HARDNESS TOTAL DISCHG
20106 36001 36011 97160
mg/L No/100ml No/100ml m3/S
NO. OF L-FLAGGED VALUES 0 4 12 14
NO. OF G-FLAGGED VALUES 0 4 2 0
NO. OF UNFLAGGED VALUES 16 30 24 0
MEAN 159.4 2.5E+04 2.0E+04 1.0
MINIMUM 110.0 1.0E+00 1.0E+00 1.0
DATE OF MINIMUM 1990-01-15 1988-11-07 1988-10-06 1988-10-06
10TH PERCENTILE 122.0 1.0E+00 1.0E+00 1.0
MEDIAN 150.0 1.8E+04 2.4E+03 1.0
90TH PERCENTILE 199.2 2.4E+04 2.4E+04 1.0
MAXIMUM 250.0 2.4E+05 2.4E+05 1.0
DATE OF MAXIMUM 1990-06-09 1988-03-07 1988-03-07 1989-12-05
STANDARD DEVIATION 35.6 5.2E+04 5.3E+04 0.0
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