| Home | Français | ||
|---|---|---|
STATISTICS FOR MEXICO
GEMS/WATER - STATISTICAL SUMMARY BY STATION 2002-01-24 PAGE 467
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 - 1991-01-01 TO 1993-12-31
PERIOD OF RECORD FROM - 1991-01-22 TO 1993-12-07
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP N KJEL NO3NO2 NH3
COND
02041 02061 07004 07105 07554
us/cm deg C mg/L N 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 17 23 22 1 23
MEAN 1168. 24.1 1.0 0.01 2.09
MINIMUM 670. 9.0 0.3 0.01
DATE OF MINIMUM 1993-04-20 1991-01-22 1991-04-16 1991-11-12
10TH PERCENTILE 702. 13.6 0.3 0.03
MEDIAN 1150. 26.0 0.8 0.08
90TH PERCENTILE 1495. 30.0 1.5 3.33
MAXIMUM 2300. 37.0 3.6 20.05
DATE OF MAXIMUM 1991-02-19 1993-09-21 1993-01-26 1991-03-12
STANDARD DEVIATION 407. 6.8 0.9 5.61
O2 BOD COD ALK ALK
DISS TOTAL TOTAL
08101 08201 08301 10101 10102
mg/L O2 mg/L O2 mg/L O2 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 24 19 23 11 13
MEAN 8.1 3. 28. 228.82 193.62
MINIMUM 1.9 1. 5. 169.00 140.00
DATE OF MINIMUM 1993-03-16 1991-11-12 1991-05-14 1993-09-21 1991-08-20
10TH PERCENTILE 4.5 1. 9. 170.00 146.00
MEDIAN 8.1 2. 19. 225.00 196.00
90TH PERCENTILE 10.0 4. 52. 296.40 211.20
MAXIMUM 11.2 14. 87. 320.00 287.00
DATE OF MAXIMUM 1991-03-12 1993-01-26 1993-01-26 1993-03-16 1991-11-12
STANDARD DEVIATION 2.1 3. 22. 49.09 35.68
pH SUSP SOL SUSP SOL VOL SUSP Mg
105 DEG 180 DEG SOLIDS DISS
10302 10401 10408 10511 12102
pH UNITS mg/L mg/L mg/L mg/L Mg
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 23 22 4 15 1
MEAN 8.0 188. 8. 32. 135.
MINIMUM 7.5 2. 2. 0.
DATE OF MINIMUM 1993-03-16 1991-06-18 1991-06-18 1993-03-16
10TH PERCENTILE 7.6 2. 1.
MEDIAN 8.0 33. 9. 20.
90TH PERCENTILE 8.2 625. 75.
MAXIMUM 8.4 1352. 10. 103.
DATE OF MAXIMUM 1991-05-14 1993-04-20 1991-12-11 1993-05-18
STANDARD DEVIATION 0.2 338. 4. 33.
Mg PO4-P P ORTHO PO4 SULPHATE
DISS SOL DISS TOTAL
12103 15254 15255 15403 16302
mg/L Mg mg/L PO4 mg/L P mg/L PO4 mg/L SO4
NO. OF L-FLAGGED VALUES 0 0 0 1 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 3 23 11 10 22
MEAN 141. 0.366 0.271 0.036 237.
MINIMUM 0.010 0.010 0.010 120.
DATE OF MINIMUM 1991-06-18 1993-08-17 1991-05-14 1991-11-12
10TH PERCENTILE 0.010 0.010 0.010 126.
MEDIAN 0.060 0.100 0.040 255.
90TH PERCENTILE 1.058 1.053 0.059 307.
MAXIMUM 2.020 1.210 0.070 390.
DATE OF MAXIMUM 1993-01-26 1993-01-26 1991-11-12 1993-03-16
STANDARD DEVIATION 0.535 0.453 0.021 69.
Cl Cl Ca Ca Fe
DISS DISS DISS DISS TOTAL
17201 17204 20101 20105 26004
mg/L Cl mg/L Cl mg/L Ca mg/L Ca mg/L Fe
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 20 1 22 1 1
MEAN 205. 204. 100.536 215.000 0.10
MINIMUM 123. 57.600
DATE OF MINIMUM 1991-06-18 1993-02-16
10TH PERCENTILE 126. 61.760
MEDIAN 150. 94.400
90TH PERCENTILE 236. 119.360
MAXIMUM 828. 227.000
DATE OF MAXIMUM 1993-03-16 1991-07-16
STANDARD DEVIATION 155. 34.498
COLIFORM FAEC COL FAEC
TOTAL STREP
36001 36011 36101
No/100ml No/100ml No/100ml
NO. OF L-FLAGGED VALUES 0 0 0
NO. OF G-FLAGGED VALUES 1 2 0
NO. OF UNFLAGGED VALUES 1 21 19
MEAN 7.3E+06 9.3E+05 8.1E+04
MINIMUM 3.0E-03 4.0E+00
DATE OF MINIMUM 1991-01-22 1991-03-12
10TH PERCENTILE 4.0E+00 1.2E+01
MEDIAN 2.4E+02 4.3E+02
90TH PERCENTILE 6.5E+05 2.4E+05
MAXIMUM 1.0E+07 9.3E+05
DATE OF MAXIMUM 1993-03-16 1993-02-16
STANDARD DEVIATION 2.9E+06 2.2E+05
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 - 1991-01-01 TO 1993-12-31
PERIOD OF RECORD FROM - 1991-01-23 TO 1993-12-10
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP NO3NO2 O2 BOD
COND DISS
02041 02061 07105 08101 08201
us/cm deg C 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 19 20 20 19 18
MEAN 1280. 20.9 1.77 7.2 5.
MINIMUM 275. 13.0 0.09 4.8 2.
DATE OF MINIMUM 1991-08-20 1991-01-23 1991-01-23 1993-10-05 1993-02-09
10TH PERCENTILE 917. 14.0 0.61 5.9 3.
MEDIAN 1209. 21.0 1.93 7.0 5.
90TH PERCENTILE 1808. 26.0 2.88 8.1 7.
MAXIMUM 1884. 27.0 3.30 11.0 8.
DATE OF MAXIMUM 1993-09-21 1993-04-20 1993-12-10 1993-11-10 1993-10-05
STANDARD DEVIATION 375. 4.3 0.89 1.3 2.
COD ALK ALK pH SUSP SOL
TOTAL TOTAL 105 DEG
08301 10101 10102 10302 10401
mg/L O2 mg/L 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 18 11 10 20 16
MEAN 15. 219.79 235.38 7.8 204.
MINIMUM 4. 1.96 121.00 5.7 0.
DATE OF MINIMUM 1991-10-29 1993-08-24 1991-08-20 1993-01-24 1993-09-21
10TH PERCENTILE 4. 19.96 121.00 7.0 5.
MEDIAN 12. 242.40 239.50 8.0 30.
90TH PERCENTILE 29. 263.50 269.46 8.2 81.
MAXIMUM 32. 274.00 300.00 8.3 2772.
DATE OF MAXIMUM 1993-04-20 1993-05-20 1991-12-03 1991-12-03 1991-08-20
STANDARD DEVIATION 9. 76.95 47.54 0.6 685.
SUSP SOL VOL SUSP Mg PO4-P P ORTHO
180 DEG SOLIDS DISS SOL DISS
10408 10511 12103 15254 15255
mg/L mg/L mg/L Mg mg/L PO4 mg/L P
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 5 14 3 19 11
MEAN 63. 35. 53. 0.533 0.172
MINIMUM 8. 0. 0.003 0.044
DATE OF MINIMUM 1991-05-14 1993-04-20 1991-03-19 1993-03-24
10TH PERCENTILE 1. 0.064 0.050
MEDIAN 16. 14. 0.280 0.143
90TH PERCENTILE 61. 1.418 0.286
MAXIMUM 248. 248. 2.640 0.305
DATE OF MAXIMUM 1991-08-20 1991-08-20 1993-11-10 1993-08-24
STANDARD DEVIATION 104. 65. 0.666 0.081
PO4 SULPHATE Cl Ca COLIFORM
TOTAL DISS DISS TOTAL
15403 16302 17201 20101 36001
mg/L PO4 mg/L SO4 mg/L Cl mg/L Ca 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 10 20 21 20 10
MEAN 0.414 274. 27. 81.284 1.1E+06
MINIMUM 0.080 28. 4. 10.000 2.4E+04
DATE OF MINIMUM 1991-12-03 1991-08-20 1991-08-20 1991-03-05 1993-10-05
10TH PERCENTILE 0.080 68. 16. 12.520 2.6E+04
MEDIAN 0.265 257. 28. 94.620 2.4E+05
90TH PERCENTILE 0.980 398. 30. 114.720 4.4E+05
MAXIMUM 1.370 586. 50. 122.400 1.0E+07
DATE OF MAXIMUM 1991-01-23 1993-11-10 1991-03-19 1993-12-10 1993-01-24
STANDARD DEVIATION 0.420 136. 8. 37.097 3.0E+06
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 19 4
MEAN 3.8E+05 246.
MINIMUM 1.1E+01 43.
DATE OF MINIMUM 1991-08-20 1991-05-14
10TH PERCENTILE 3.6E+01
MEDIAN 4.3E+04 240.
90TH PERCENTILE 2.4E+05
MAXIMUM 6.0E+06 460.
DATE OF MAXIMUM 1993-01-24 1991-04-22
STANDARD DEVIATION 1.4E+06 170.
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 - 1991-01-01 TO 1993-12-31
PERIOD OF RECORD FROM - 1991-01-10 TO 1993-11-08
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP B B NO3NO2
COND DISS DISS
02041 02061 05101 05102 07105
us/cm deg C mg/L B mg/L B 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 23 7 1 22
MEAN 1292. 24.5 0.4 0.4 0.24
MINIMUM 700. 13.0 0.1 0.03
DATE OF MINIMUM 1991-08-13 1991-01-10 1991-02-12 1993-05-11
10TH PERCENTILE 890. 17.6 0.05
MEDIAN 1290. 25.0 0.4 0.15
90TH PERCENTILE 1556. 30.2 0.50
MAXIMUM 2000. 32.0 0.5 0.82
DATE OF MAXIMUM 1991-03-12 1993-08-16 1991-03-12 1991-11-12
STANDARD DEVIATION 282. 4.9 0.1 0.23
NH3 O2 BOD COD ALK
DISS TOTAL
07554 08101 08201 08301 10101
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 17 23 23 21 12
MEAN 1.11 7.4 29. 42. 182.33
MINIMUM 0.01 0.0 1. 11. 115.00
DATE OF MINIMUM 1993-08-16 1993-05-11 1991-09-10 1991-07-16 1993-06-16
10TH PERCENTILE 0.11 1.6 2. 15. 120.60
MEDIAN 0.60 8.2 4. 29. 160.50
90TH PERCENTILE 1.48 9.4 12. 88. 200.40
MAXIMUM 8.75 11.0 400. 197. 415.00
DATE OF MAXIMUM 1991-10-08 1991-10-08 1993-05-11 1993-11-08 1993-05-11
STANDARD DEVIATION 2.01 2.7 89. 43. 76.82
ALK pH SUSP SOL SUSP SOL VOL SUSP
TOTAL 105 DEG 180 DEG SOLIDS
10102 10302 10401 10408 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 12 24 21 3 15
MEAN 154.47 7.7 109. 17. 24.
MINIMUM 117.70 6.3 10. 5.
DATE OF MINIMUM 1991-03-12 1991-08-13 1993-08-16 1993-08-16
10TH PERCENTILE 119.54 7.0 33. 6.
MEDIAN 159.00 7.9 55. 22.
90TH PERCENTILE 180.54 8.2 134. 42.
MAXIMUM 184.50 8.3 960. 50.
DATE OF MAXIMUM 1991-08-13 1993-02-22 1991-10-08 1993-05-13
STANDARD DEVIATION 22.65 0.6 198. 14.
Na PO4-P PO4 SULPHATE Cl
DISS SOL TOTAL DISS
11103 15254 15403 16302 17201
mg/L Na mg/L PO4 mg/L PO4 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 9 5 1 23 23
MEAN 138. 0.162 0.020 260. 194.
MINIMUM 10. 0.003 11. 68.
DATE OF MINIMUM 1993-01-21 1993-02-22 1991-07-16 1993-11-08
10TH PERCENTILE 49. 99.
MEDIAN 101. 0.003 268. 156.
90TH PERCENTILE 433. 235.
MAXIMUM 490. 0.800 530. 749.
DATE OF MAXIMUM 1993-08-16 1993-06-16 1991-05-14 1991-10-08
STANDARD DEVIATION 145. 0.356 142. 132.
K Ca Mn Fe Cu
DISS DISS DISS DISS DISS
19103 20101 25104 26102 29106
mg/L K mg/L Ca mg/L Mn mg/L Fe mg/L Cu
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 2 2 2
MEAN 3.6 98.193 0.40 1.02 0.050
MINIMUM 0.1 72.000
DATE OF MINIMUM 1993-01-21 1991-07-16
10TH PERCENTILE 0.1 72.000
MEDIAN 4.0 92.000
90TH PERCENTILE 4.0 128.000
MAXIMUM 4.0 132.000
DATE OF MAXIMUM 1993-10-18 1991-10-08
STANDARD DEVIATION 1.2 21.177
Zn FAEC COL FAEC Pb
DISS STREP DISS
30101 36011 36101 82101
mg/L Zn No/100ml No/100ml mg/L Pb
NO. OF L-FLAGGED VALUES 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0
NO. OF UNFLAGGED VALUES 2 15 1 2
MEAN 0.040 3.7E+05 0. 0.025
MINIMUM 2.3E+01
DATE OF MINIMUM 1991-12-03
10TH PERCENTILE 2.6E+01
MEDIAN 7.0E+03
90TH PERCENTILE 1.3E+06
MAXIMUM 2.5E+06
DATE OF MAXIMUM 1993-04-14
STANDARD DEVIATION 8.3E+05
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 - 1991-01-01 TO 1993-12-31
PERIOD OF RECORD FROM - 1991-01-28 TO 1993-08-30
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP N KJEL NO3NO2 NO3-N
COND
02041 02061 07004 07105 07306
us/cm deg C mg/L N mg/L N mg/L N
NO. OF L-FLAGGED VALUES 0 0 0 1 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 18 18 5 14 3
MEAN 639. 26.7 0.5 0.50 0.71
MINIMUM 200. 22.0 0.4 0.10
DATE OF MINIMUM 1993-07-26 1991-11-27 1993-02-08 1991-05-14
10TH PERCENTILE 288. 22.0 0.10
MEDIAN 685. 28.0 0.6 0.41
90TH PERCENTILE 840. 30.1 0.94
MAXIMUM 944. 31.0 0.7 1.70
DATE OF MAXIMUM 1991-01-28 1991-05-14 1993-07-27 1993-07-27
STANDARD DEVIATION 217. 3.2 0.1 0.45
NH3 O2 BOD COD ALK
DISS TOTAL
07554 08101 08201 08301 10101
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 18 17 18 9
MEAN 0.05 8.7 2. 15. 185.67
MINIMUM 0.02 4.1 0. 6. 155.00
DATE OF MINIMUM 1993-02-25 1993-03-31 1993-05-26 1991-01-28 1993-02-25
10TH PERCENTILE 5.0 1. 6.
MEDIAN 0.05 8.4 2. 13. 188.00
90TH PERCENTILE 12.1 4. 22.
MAXIMUM 0.14 13.5 6. 36. 240.00
DATE OF MAXIMUM 1993-04-29 1991-01-28 1993-08-30 1993-07-26 1993-07-27
STANDARD DEVIATION 0.04 2.9 1. 8. 27.25
ALK pH pH SUSP SOL SUSP SOL
TOTAL 105 DEG 180 DEG
10102 10301 10302 10401 10408
mg/L pH UNITS 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 9 3 15 16 2
MEAN 185.11 8.2 7.9 94. 16.
MINIMUM 124.00 7.0 13.
DATE OF MINIMUM 1991-05-14 1991-01-28 1993-06-28
10TH PERCENTILE 7.3 14.
MEDIAN 182.00 7.9 45.
90TH PERCENTILE 8.3 244.
MAXIMUM 236.00 8.5 252.
DATE OF MAXIMUM 1991-11-27 1991-03-11 1991-07-29
STANDARD DEVIATION 41.53 0.4 93.
VOL SUSP TENS Na Na Mg
SOLIDS ANIONIC DISS DISS DISS
10511 10702 11103 11105 12102
mg/L mg/L mg/L Na mg/L Na mg/L Mg
NO. OF L-FLAGGED VALUES 0 1 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 4 2 7 6 2
MEAN 11. 0.1 26. 32. 36.
MINIMUM 2. 8. 25.
DATE OF MINIMUM 1993-02-08 1993-06-28 1991-05-14
10TH PERCENTILE
MEDIAN 10. 29. 32.
90TH PERCENTILE
MAXIMUM 22. 50. 40.
DATE OF MAXIMUM 1991-07-29 1993-08-30 1991-03-11
STANDARD DEVIATION 8. 14. 6.
Mg PO4-P P ORTHO PO4 SULPHATE
DISS SOL DISS TOTAL
12103 15254 15255 15403 16302
mg/L Mg mg/L PO4 mg/L P 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 15 11 9 7 18
MEAN 29. 0.090 0.036 0.097 148.
MINIMUM 4. 0.030 0.010 0.040 3.
DATE OF MINIMUM 1993-06-28 1993-06-28 1993-07-26 1991-03-11 1993-07-26
10TH PERCENTILE 8. 0.031 11.
MEDIAN 28. 0.080 0.020 0.070 121.
90TH PERCENTILE 55. 0.148 274.
MAXIMUM 67. 0.160 0.070 0.190 377.
DATE OF MAXIMUM 1993-05-26 1993-07-27 1993-03-31 1991-10-23 1993-02-25
STANDARD DEVIATION 18. 0.043 0.022 0.059 108.
Cl Cl K K Ca
DISS DISS DISS DISS DISS
17201 17204 19103 19105 20101
mg/L Cl mg/L Cl mg/L K 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 15 3 11 2 16
MEAN 26. 22. 4.6 5.4 71.651
MINIMUM 8. 2.8 30.800
DATE OF MINIMUM 1993-03-31 1993-02-08 1993-08-30
10TH PERCENTILE 10. 2.8 40.400
MEDIAN 27. 4.5 68.650
90TH PERCENTILE 45. 6.1 104.400
MAXIMUM 50. 6.2 117.000
DATE OF MAXIMUM 1993-08-30 1991-11-27 1991-03-11
STANDARD DEVIATION 13. 1.1 25.007
Ca Mn Fe Fe Cu
DISS DISS TOTAL DISS DISS
20105 25104 26004 26102 29106
mg/L Ca mg/L Mn mg/L Fe mg/L Fe mg/L Cu
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 2 3 1 2 3
MEAN 88.000 0.14 0.12 0.33 0.050
MINIMUM
DATE OF MINIMUM
10TH PERCENTILE
MEDIAN
90TH PERCENTILE
MAXIMUM
DATE OF MAXIMUM
STANDARD DEVIATION
Zn Zn COLIFORM FAEC COL Pb
DISS DISS TOTAL DISS
30101 30105 36001 36011 82101
mg/L Zn mg/L Zn No/100ml No/100ml mg/L Pb
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 2 1 1 18 2
MEAN 0.025 0.070 6.0E+05 1.5E+05 0.019
MINIMUM 2.0E+00
DATE OF MINIMUM 1991-01-28
10TH PERCENTILE 9.2E+00
MEDIAN 3.1E+03
90TH PERCENTILE 5.2E+05
MAXIMUM 1.0E+06
DATE OF MAXIMUM 1993-07-27
STANDARD DEVIATION 3.1E+05
INST
DISCHG
97160
m3/S
NO. OF L-FLAGGED VALUES 0
NO. OF G-FLAGGED VALUES 0
NO. OF UNFLAGGED VALUES 1
MEAN 1498.0
MINIMUM
DATE OF MINIMUM
10TH PERCENTILE
MEDIAN
90TH PERCENTILE
MAXIMUM
DATE OF MAXIMUM
STANDARD DEVIATION
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 - 1991-01-01 TO 1993-12-31
PERIOD OF RECORD FROM - 1991-01-07 TO 1993-12-08
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP NO3NO2 NH3 O2
COND DISS
02041 02061 07105 07554 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 23 22 1 20
MEAN 3702. 27.2 0.29 0.17 6.4
MINIMUM 6. 23.0 0.02 1.4
DATE OF MINIMUM 1991-06-24 1991-01-07 1991-05-15 1991-10-14
10TH PERCENTILE 143. 24.0 0.05 2.1
MEDIAN 850. 28.0 0.27 6.9
90TH PERCENTILE 5000. 30.2 0.54 9.1
MAXIMUM 33000. 31.0 0.66 10.6
DATE OF MAXIMUM 1991-05-15 1993-09-29 1991-03-05 1991-02-19
STANDARD DEVIATION 7358. 2.6 0.20 2.6
BOD COD ALK ALK pH
TOTAL TOTAL
08201 08301 10101 10102 10302
mg/L O2 mg/L O2 mg/L 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 23 11 12 22
MEAN 3. 188. 67.58 78.08 7.1
MINIMUM 0. 10. 36.79 35.00 5.0
DATE OF MINIMUM 1993-06-22 1991-02-19 1993-11-24 1991-10-14 1991-01-07
10TH PERCENTILE 0. 16. 36.79 37.40 6.2
MEDIAN 2. 72. 67.58 64.00 7.3
90TH PERCENTILE 5. 512. 109.60 137.40 7.8
MAXIMUM 9. 793. 112.30 153.00 7.9
DATE OF MAXIMUM 1991-05-15 1993-03-11 1993-03-11 1991-03-05 1993-03-11
STANDARD DEVIATION 2. 241. 28.82 39.23 0.7
SUSP SOL SUSP SOL VOL SUSP PO4-P P ORTHO
105 DEG 180 DEG SOLIDS SOL DISS
10401 10408 10511 15254 15255
mg/L mg/L mg/L mg/L PO4 mg/L P
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 9 20 11 9
MEAN 89. 14. 32. 0.274 0.213
MINIMUM 2. 2. 2. 0.150 0.010
DATE OF MINIMUM 1991-06-24 1991-05-15 1991-05-15 1993-11-24 1993-11-24
10TH PERCENTILE 12. 2. 0.150
MEDIAN 58. 12. 25. 0.202 0.258
90TH PERCENTILE 232. 66. 0.451
MAXIMUM 320. 26. 78. 0.623 0.542
DATE OF MAXIMUM 1993-03-11 1991-11-12 1993-10-20 1993-10-20 1993-10-20
STANDARD DEVIATION 97. 9. 22. 0.162 0.164
PO4 SULPHATE Cl Ca COLIFORM
TOTAL DISS DISS TOTAL
15403 16302 17201 20101 36001
mg/L PO4 mg/L SO4 mg/L Cl mg/L Ca No/100ml
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 12 21 22 21 11
MEAN 0.321 85. 1265. 62.267 2.0E+05
MINIMUM 0.030 7. 10. 12.000 1.5E+03
DATE OF MINIMUM 1991-04-15 1991-11-12 1993-11-24 1991-10-14 1993-01-25
10TH PERCENTILE 0.032 8. 11. 14.400 1.5E+03
MEDIAN 0.137 37. 230. 24.000 8.5E+03
90TH PERCENTILE 0.861 149. 2806. 157.440 1.1E+04
MAXIMUM 1.020 738. 11946. 370.400 2.1E+06
DATE OF MAXIMUM 1991-03-05 1991-05-15 1991-05-15 1991-05-15 1993-04-20
STANDARD DEVIATION 0.365 162. 2672. 86.969 6.3E+05
FAEC COL
36011
No/100ml
NO. OF L-FLAGGED VALUES 0
NO. OF G-FLAGGED VALUES 0
NO. OF UNFLAGGED VALUES 20
MEAN 4.9E+04
MINIMUM 9.2E+00
DATE OF MINIMUM 1991-03-05
10TH PERCENTILE 3.0E+01
MEDIAN 2.8E+03
90TH PERCENTILE 1.5E+05
MAXIMUM 4.0E+05
DATE OF MAXIMUM 1993-10-20
STANDARD DEVIATION 1.2E+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 - 1991-01-01 TO 1993-12-31
PERIOD OF RECORD FROM - 1991-01-22 TO 1993-11-18
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP N KJEL NH3 O2
COND DISS
02041 02061 07004 07554 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 10 11 1 1 11
MEAN 918. 27.9 1.7 0.06 6.6
MINIMUM 2. 25.5 4.0
DATE OF MINIMUM 1993-01-14 1993-11-18 1991-09-05
10TH PERCENTILE 2. 25.5 4.1
MEDIAN 850. 28.0 6.5
90TH PERCENTILE 1640. 30.8 8.2
MAXIMUM 1750. 31.0 8.5
DATE OF MAXIMUM 1991-07-10 1993-07-29 1991-03-12
STANDARD DEVIATION 664. 1.9 1.6
BOD COD ALK ALK pH
TOTAL TOTAL
08201 08301 10101 10102 10302
mg/L O2 mg/L O2 mg/L 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 10 6 4 6 11
MEAN 8. 111. 216.25 162.83 7.8
MINIMUM 3. 10. 34.00 85.00 7.2
DATE OF MINIMUM 1991-01-22 1993-03-18 1993-03-18 1991-05-28 1991-11-14
10TH PERCENTILE 3. 7.2
MEDIAN 5. 59. 155.00 180.00 7.8
90TH PERCENTILE 17. 8.1
MAXIMUM 20. 308. 521.00 204.00 8.3
DATE OF MAXIMUM 1993-09-24 1991-07-10 1993-09-24 1991-01-22 1993-07-29
STANDARD DEVIATION 7. 124. 213.41 45.67 0.4
SUSP SOL VOL SUSP Mg PO4-P P ORTHO
105 DEG SOLIDS DISS SOL DISS
10401 10511 12103 15254 15255
mg/L mg/L mg/L Mg mg/L PO4 mg/L P
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 3 3 5 9 3
MEAN 442. 73. 2. 0.101 0.070
MINIMUM 0. 0.060
DATE OF MINIMUM 1993-01-14 1991-03-12
10TH PERCENTILE
MEDIAN 1. 0.070
90TH PERCENTILE
MAXIMUM 9. 0.170
DATE OF MAXIMUM 1993-09-24 1993-07-29
STANDARD DEVIATION 4. 0.050
PO4 SULPHATE Cl Ca FAEC COL
TOTAL DISS DISS
15403 16302 17201 20101 36011
mg/L PO4 mg/L SO4 mg/L Cl mg/L Ca 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 6 4 10 9 8
MEAN 0.423 329. 33. 75.289 3.5E+06
MINIMUM 0.080 79. 13. 13.600 3.0E+02
DATE OF MINIMUM 1991-05-28 1991-07-10 1993-09-24 1991-07-10 1991-01-22
10TH PERCENTILE 13.
MEDIAN 0.165 209. 28. 54.400 9.3E+04
90TH PERCENTILE 34.
MAXIMUM 1.380 819. 94. 204.000 2.0E+07
DATE OF MAXIMUM 1991-09-05 1991-03-12 1993-11-18 1993-01-14 1993-03-18
STANDARD DEVIATION 0.508 343. 22. 61.960 7.0E+06
FAEC
STREP
36101
No/100ml
NO. OF L-FLAGGED VALUES 0
NO. OF G-FLAGGED VALUES 0
NO. OF UNFLAGGED VALUES 2
MEAN 35.
MINIMUM
DATE OF MINIMUM
10TH PERCENTILE
MEDIAN
90TH PERCENTILE
MAXIMUM
DATE OF MAXIMUM
STANDARD DEVIATION
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 - 1991-01-01 TO 1993-12-31
PERIOD OF RECORD FROM - 1991-01-22 TO 1993-12-03
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP B N KJEL NO3NO2
COND DISS
02041 02061 05101 07004 07105
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 24 24 5 12 23
MEAN 1022. 19.7 0.5 12.0 0.79
MINIMUM 253. 17.0 0.2 2.6 0.04
DATE OF MINIMUM 1993-01-21 1991-11-07 1991-09-10 1993-01-21 1991-05-22
10TH PERCENTILE 513. 17.0 2.7 0.10
MEDIAN 885. 19.0 0.5 6.6 0.41
90TH PERCENTILE 1631. 22.0 18.8 2.51
MAXIMUM 1875. 27.3 0.9 58.7 2.60
DATE OF MAXIMUM 1993-04-21 1993-09-24 1991-03-22 1993-04-21 1993-09-24
STANDARD DEVIATION 471. 2.5 0.3 15.6 0.88
NH3 O2 BOD COD ALK
DISS TOTAL
07554 08101 08201 08301 10101
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 23 22 24 24 11
MEAN 10.60 3.2 57. 164. 383.99
MINIMUM 0.11 0.0 1. 24. 96.60
DATE OF MINIMUM 1993-01-21 1991-02-19 1993-01-21 1993-01-21 1993-01-21
10TH PERCENTILE 2.47 0.0 8. 34. 103.27
MEDIAN 8.96 3.3 32. 157. 338.10
90TH PERCENTILE 21.87 5.8 126. 247. 580.34
MAXIMUM 29.12 7.9 360. 556. 648.90
DATE OF MAXIMUM 1993-03-24 1993-01-21 1993-05-18 1993-05-18 1993-05-18
STANDARD DEVIATION 7.87 2.3 79. 114. 184.83
ALK pH SUSP SOL SUSP SOL VOL SUSP
TOTAL 105 DEG 180 DEG SOLIDS
10102 10302 10401 10408 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 12 24 22 4 16
MEAN 327.82 7.6 429. 170. 123.
MINIMUM 143.44 6.3 16. 8. 8.
DATE OF MINIMUM 1991-06-21 1993-01-21 1991-04-23 1991-04-23 1991-04-23
10TH PERCENTILE 156.15 6.9 43. 15.
MEDIAN 309.28 7.6 259. 126. 94.
90TH PERCENTILE 445.92 8.0 512. 284.
MAXIMUM 586.00 8.2 3420. 420. 420.
DATE OF MAXIMUM 1991-03-22 1993-11-12 1991-06-21 1991-06-21 1991-06-21
STANDARD DEVIATION 124.20 0.4 705. 177. 116.
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 4 5 5 6 24
MEAN 41. 24. 14. 77. 2.579
MINIMUM 1. 3. 1. 1. 0.360
DATE OF MINIMUM 1993-01-21 1991-09-10 1991-01-22 1993-01-21 1993-01-21
10TH PERCENTILE 0.732
MEDIAN 49. 4. 3. 64. 2.295
90TH PERCENTILE 3.625
MAXIMUM 66. 104. 60. 195. 11.730
DATE OF MAXIMUM 1993-10-28 1991-03-22 1991-03-22 1991-04-23 1993-05-18
STANDARD DEVIATION 28. 45. 26. 67. 2.210
P ORTHO PO4 SULPHATE Cl K
DISS TOTAL DISS DISS
15255 15403 16302 17201 19103
mg/L P mg/L PO4 mg/L SO4 mg/L Cl mg/L K
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 12 12 7 22 4
MEAN 2.049 4.062 111. 58. 10.5
MINIMUM 0.180 0.940 21. 1. 0.1
DATE OF MINIMUM 1993-01-21 1991-09-10 1993-01-21 1993-01-21 1993-01-21
10TH PERCENTILE 0.210 1.046 17.
MEDIAN 1.315 2.390 111. 45. 12.9
90TH PERCENTILE 2.682 9.440 113.
MAXIMUM 11.050 13.640 187. 161. 16.0
DATE OF MAXIMUM 1993-05-18 1991-03-22 1993-12-03 1993-05-18 1993-10-28
STANDARD DEVIATION 2.945 4.169 57. 41. 7.2
K Ca Fe Cu COLIFORM
DISS DISS DISS DISS TOTAL
19105 20101 26102 29106 36001
mg/L K mg/L Ca mg/L Fe mg/L Cu No/100ml
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 4
NO. OF UNFLAGGED VALUES 5 23 2 1 8
MEAN 4.9 73.007 0.56 0.330 1.4E+07
MINIMUM 0.4 15.200 9.0E+05
DATE OF MINIMUM 1991-07-12 1993-01-21 1993-06-17
10TH PERCENTILE 23.712 1.1E+06
MEDIAN 0.5 63.600 1.0E+07
90TH PERCENTILE 118.640 2.4E+07
MAXIMUM 22.8 142.000 2.4E+07
DATE OF MAXIMUM 1991-03-22 1993-04-21 1993-08-07
STANDARD DEVIATION 10.0 35.287 9.3E+06
FAEC COL Pb INST
DISS DISCHG
36011 82101 97160
No/100ml mg/L Pb m3/S
NO. OF L-FLAGGED VALUES 0 0 0
NO. OF G-FLAGGED VALUES 3 0 0
NO. OF UNFLAGGED VALUES 20 1 3
MEAN 9.6E+06 0.035 3.7
MINIMUM 4.0E+05
DATE OF MINIMUM 1991-12-06
10TH PERCENTILE 9.0E+05
MEDIAN 1.0E+06
90TH PERCENTILE 2.4E+07
MAXIMUM 9.3E+07
DATE OF MAXIMUM 1993-02-23
STANDARD DEVIATION 2.0E+07
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 - 1991-01-01 TO 1993-12-31
PERIOD OF RECORD FROM - 1991-01-09 TO 1993-12-09
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP NO3NO2 O2 BOD
COND DISS
02041 02061 07105 08101 08201
us/cm deg C 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 22 23 22 21 20
MEAN 449. 22.4 0.88 5.4 20.
MINIMUM 51. 17.0 0.04 0.0 1.
DATE OF MINIMUM 1991-01-09 1993-01-26 1993-09-01 1993-01-26 1993-11-24
10TH PERCENTILE 260. 17.3 0.05 1.9 2.
MEDIAN 450. 22.0 0.94 5.8 10.
90TH PERCENTILE 642. 26.0 1.43 8.0 30.
MAXIMUM 700. 28.0 2.45 8.5 86.
DATE OF MAXIMUM 1993-09-29 1991-05-16 1991-06-25 1993-10-20 1993-06-23
STANDARD DEVIATION 166. 3.1 0.64 2.4 25.
COD ALK ALK pH SUSP SOL
TOTAL TOTAL 105 DEG
08301 10101 10102 10302 10401
mg/L O2 mg/L 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 22 11 12 23 20
MEAN 196. 248.06 168.42 7.6 129.
MINIMUM 12. 159.14 97.00 7.0 30.
DATE OF MINIMUM 1991-02-20 1993-10-20 1991-06-25 1991-02-20 1993-07-29
10TH PERCENTILE 19. 159.95 98.00 7.1 34.
MEDIAN 62. 268.84 143.00 7.6 80.
90TH PERCENTILE 196. 301.40 230.40 7.9 130.
MAXIMUM 2554. 311.36 257.00 8.1 1060.
DATE OF MAXIMUM 1993-10-20 1993-07-29 1991-05-16 1993-03-12 1991-06-25
STANDARD DEVIATION 531. 60.80 54.38 0.3 222.
SUSP SOL VOL SUSP PO4-P P ORTHO PO4
180 DEG SOLIDS SOL DISS TOTAL
10408 10511 15254 15255 15403
mg/L mg/L mg/L PO4 mg/L P 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 10 20 11 11 12
MEAN 57. 51. 0.588 0.228 0.377
MINIMUM 8. 8. 0.022 0.010 0.078
DATE OF MINIMUM 1991-04-16 1991-04-16 1993-12-09 1993-01-26 1991-10-15
10TH PERCENTILE 8. 18. 0.033 0.010 0.084
MEDIAN 29. 32. 0.650 0.127 0.281
90TH PERCENTILE 120. 114. 0.847 0.595 0.704
MAXIMUM 242. 242. 1.438 0.596 0.720
DATE OF MAXIMUM 1991-06-25 1991-06-25 1993-04-21 1993-09-29 1991-05-16
STANDARD DEVIATION 72. 53. 0.400 0.250 0.255
SULPHATE Cl Ca COLIFORM FAEC COL
DISS DISS TOTAL
16302 17201 20101 36001 36011
mg/L SO4 mg/L Cl mg/L Ca No/100ml No/100ml
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 1 1
NO. OF UNFLAGGED VALUES 20 23 21 10 20
MEAN 18. 13. 69.370 1.7E+06 7.3E+05
MINIMUM 5. 3. 33.200 1.2E+05 3.0E+01
DATE OF MINIMUM 1993-07-29 1993-10-20 1991-07-10 1993-07-29 1991-02-20
10TH PERCENTILE 6. 4. 34.840 1.3E+05 5.1E+01
MEDIAN 16. 12. 72.000 7.0E+05 2.0E+05
90TH PERCENTILE 39. 22. 94.288 2.0E+06 9.3E+05
MAXIMUM 41. 30. 98.072 1.0E+07 1.0E+07
DATE OF MAXIMUM 1991-03-06 1991-03-06 1993-07-29 1993-05-19 1993-05-19
STANDARD DEVIATION 12. 7. 22.871 2.8E+06 2.1E+06
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 - 1991-01-01 TO 1993-12-31
PERIOD OF RECORD FROM - 1991-01-18 TO 1993-11-28
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP TEMP N KJEL NO3NO2
COND
02041 02061 02062 07004 07105
us/cm deg C deg C 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 15 4 3 15
MEAN 808. 22.3 0.1 1.4 0.33
MINIMUM 580. 18.0 0.0 0.18
DATE OF MINIMUM 1991-09-24 1993-02-17 1991-09-24 1993-05-16
10TH PERCENTILE 600. 18.5 0.19
MEDIAN 750. 23.0 0.1 0.31
90TH PERCENTILE 1065. 25.0 0.45
MAXIMUM 1250. 26.1 0.2 0.54
DATE OF MAXIMUM 1991-04-19 1991-04-19 1991-12-06 1991-05-10
STANDARD DEVIATION 207. 2.8 0.1 0.10
NH3 O2 BOD COD ALK
DISS TOTAL
07554 08101 08201 08301 10101
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 15 15 15 15 4
MEAN 0.40 7.1 1. 35. 253.50
MINIMUM 0.11 5.7 0. 14. 249.00
DATE OF MINIMUM 1993-02-17 1991-08-19 1993-08-17 1991-12-06 1993-05-16
10TH PERCENTILE 0.12 6.1 1. 18.
MEDIAN 0.27 7.1 1. 32. 253.50
90TH PERCENTILE 0.85 7.9 1. 54.
MAXIMUM 1.20 8.0 2. 70. 258.00
DATE OF MAXIMUM 1993-11-28 1991-02-22 1991-02-22 1993-02-17 1993-02-17
STANDARD DEVIATION 0.33 0.6 0. 15. 3.87
ALK pH SUSP SOL SUSP SOL VOL SUSP
TOTAL 105 DEG 180 DEG SOLIDS
10102 10302 10401 10408 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 10 15 15 10 14
MEAN 321.50 8.5 36. 20. 18.
MINIMUM 216.00 7.8 6. 3. 3.
DATE OF MINIMUM 1991-12-06 1991-12-06 1993-11-28 1991-02-22 1991-02-22
10TH PERCENTILE 216.00 8.0 6. 3. 3.
MEDIAN 323.00 8.5 32. 11. 7.
90TH PERCENTILE 412.00 9.0 61. 41. 40.
MAXIMUM 420.00 9.2 83. 54. 54.
DATE OF MAXIMUM 1991-05-10 1991-04-19 1991-08-19 1991-08-19 1991-08-19
STANDARD DEVIATION 73.25 0.4 21. 19. 17.
PO4-P P ORTHO PO4 SULPHATE Cl
SOL DISS TOTAL DISS
15254 15255 15403 16302 17201
mg/L PO4 mg/L P mg/L PO4 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 15 4 10 11 4
MEAN 0.327 0.333 0.438 101. 42.
MINIMUM 0.140 0.270 0.290 30. 33.
DATE OF MINIMUM 1991-11-11 1993-08-17 1991-07-16 1993-05-16 1993-11-28
10TH PERCENTILE 0.165 0.290 32.
MEDIAN 0.310 0.340 0.365 116. 42.
90TH PERCENTILE 0.475 0.470 143.
MAXIMUM 0.540 0.380 1.100 176. 52.
DATE OF MAXIMUM 1993-02-17 1993-05-16 1991-01-18 1991-06-18 1993-05-16
STANDARD DEVIATION 0.118 0.056 0.240 49. 8.
Ca Cr COLIFORM FAEC COL
DISS TOTAL TOTAL
20101 24002 36001 36011
mg/L Ca mg/L Cr No/100ml No/100ml
NO. OF L-FLAGGED VALUES 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0
NO. OF UNFLAGGED VALUES 15 1 3 11
MEAN 42.800 2.000 83. 291.
MINIMUM 4.400 0.
DATE OF MINIMUM 1993-02-17 1991-11-11
10TH PERCENTILE 19.800 0.
MEDIAN 42.000 20.
90TH PERCENTILE 59.200 189.
MAXIMUM 67.200 2800.
DATE OF MAXIMUM 1991-05-10 1991-08-19
STANDARD DEVIATION 14.574 834.
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 - 1991-01-01 TO 1993-12-31
PERIOD OF RECORD FROM - 1991-02-07 TO 1993-10-13
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP N KJEL NO3NO2 NH3
COND
02041 02061 07004 07105 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 11 8 1 6 2
MEAN 1025. 23.6 0.2 0.32 0.00
MINIMUM 967. 17.0 0.19
DATE OF MINIMUM 1993-06-16 1991-11-18 1993-04-23
10TH PERCENTILE 968.
MEDIAN 1024. 25.0 0.32
90TH PERCENTILE 1059.
MAXIMUM 1140. 30.0 0.45
DATE OF MAXIMUM 1991-11-18 1991-10-02 1991-06-05
STANDARD DEVIATION 49. 4.5 0.09
O2 BOD COD ALK ALK
DISS TOTAL TOTAL
08101 08201 08301 10101 10102
mg/L O2 mg/L O2 mg/L O2 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 10 10 5 6
MEAN 7.8 1. 16. 126.60 122.32
MINIMUM 6.1 0. 1. 105.00 111.40
DATE OF MINIMUM 1991-04-05 1991-04-05 1991-02-07 1993-02-16 1991-08-13
10TH PERCENTILE 0. 1.
MEDIAN 7.7 1. 12. 115.50 119.05
90TH PERCENTILE 4. 40.
MAXIMUM 9.8 4. 60. 175.00 138.50
DATE OF MAXIMUM 1993-04-23 1993-10-13 1993-04-23 1993-04-23 1991-04-05
STANDARD DEVIATION 1.3 2. 19. 27.77 10.95
pH SUSP SOL SUSP SOL VOL SUSP SULPHATE
105 DEG 180 DEG SOLIDS
10302 10401 10408 10511 16302
pH UNITS mg/L mg/L mg/L 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 11 6 1 6 11
MEAN 7.8 31. 2. 8. 213.
MINIMUM 7.0 8. 2. 140.
DATE OF MINIMUM 1991-04-05 1993-02-16 1991-11-18 1993-08-17
10TH PERCENTILE 7.0 145.
MEDIAN 7.9 21. 6. 219.
90TH PERCENTILE 8.1 239.
MAXIMUM 8.2 84. 24. 270.
DATE OF MAXIMUM 1993-04-23 1993-04-23 1993-04-23 1991-08-13
STANDARD DEVIATION 0.4 29. 8. 33.
Cl Ca FAEC COL
DISS DISS
17201 20101 36011
mg/L Cl mg/L Ca No/100ml
NO. OF L-FLAGGED VALUES 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0
NO. OF UNFLAGGED VALUES 11 11 6
MEAN 127. 70.010 1005.
MINIMUM 76. 50.400 0.
DATE OF MINIMUM 1993-10-13 1993-10-13 1993-02-16
10TH PERCENTILE 79. 50.560
MEDIAN 122. 70.000 2.
90TH PERCENTILE 141. 87.684
MAXIMUM 231. 94.800 6000.
DATE OF MAXIMUM 1991-10-02 1991-02-07 1993-10-13
STANDARD DEVIATION 39. 16.138 2447.
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 - 1991-01-01 TO 1993-12-31
PERIOD OF RECORD FROM - 1991-01-23 TO 1993-12-14
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP NO3NO2 NH3 O2
COND DISS
02041 02061 07105 07554 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 34 34 32 2 25
MEAN 1252. 27.3 5.16 5.50 3.7
MINIMUM 1140. 26.0 0.01 2.0
DATE OF MINIMUM 1993-01-27 1991-12-17 1991-01-23 1991-06-25
10TH PERCENTILE 1164. 26.0 3.02 2.1
MEDIAN 1250. 27.0 5.10 3.8
90TH PERCENTILE 1340. 28.6 6.70 5.4
MAXIMUM 1400. 29.0 7.59 5.9
DATE OF MAXIMUM 1993-03-30 1991-04-22 1993-11-23 1993-12-14
STANDARD DEVIATION 68. 0.8 1.51 1.2
BOD COD ALK ALK pH
TOTAL TOTAL
08201 08301 10101 10102 10302
mg/L O2 mg/L O2 mg/L 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 12 34 12 22 34
MEAN 4. 15. 311.43 319.09 7.1
MINIMUM 0. 7. 221.00 229.00 6.2
DATE OF MINIMUM 1993-04-21 1993-06-23 1993-03-30 1991-11-25 1993-04-21
10TH PERCENTILE 0. 8. 229.60 245.60 6.7
MEDIAN 2. 15. 315.00 327.00 7.1
90TH PERCENTILE 6. 18. 340.20 346.40 7.5
MAXIMUM 24. 33. 399.00 350.00 8.1
DATE OF MAXIMUM 1993-02-16 1991-02-19 1993-12-14 1991-03-19 1991-06-25
STANDARD DEVIATION 7. 5. 45.39 31.40 0.4
SUSP SOL Mg SULPHATE Cl Ca
105 DEG DISS DISS DISS
10401 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 12 10 34 31 34
MEAN 5. 39. 33. 189. 151.872
MINIMUM 0. 36. 20. 166. 63.000
DATE OF MINIMUM 1993-02-16 1991-04-22 1991-05-21 1991-11-25 1991-11-25
10TH PERCENTILE 0. 36. 28. 172. 87.520
MEDIAN 4. 40. 33. 190. 113.600
90TH PERCENTILE 10. 42. 38. 201. 269.600
MAXIMUM 17. 42. 43. 226. 299.000
DATE OF MAXIMUM 1993-06-23 1991-03-19 1993-11-23 1993-10-26 1991-09-30
STANDARD DEVIATION 5. 2. 5. 13. 74.098
Ca COLIFORM FAEC COL
DISS TOTAL
20105 36001 36011
mg/L Ca No/100ml No/100ml
NO. OF L-FLAGGED VALUES 0 0 0
NO. OF G-FLAGGED VALUES 0 0 1
NO. OF UNFLAGGED VALUES 4 11 33
MEAN 92.750 8.0E+05 8.8E+05
MINIMUM 63.000 4.0E+04 2.0E+01
DATE OF MINIMUM 1991-11-25 1993-10-26 1991-01-23
10TH PERCENTILE 4.5E+04 1.5E+02
MEDIAN 98.000 9.3E+05 4.6E+03
90TH PERCENTILE 1.5E+06 9.3E+05
MAXIMUM 112.000 2.4E+06 2.4E+07
DATE OF MAXIMUM 1991-03-19 1993-07-28 1993-06-23
STANDARD DEVIATION 22.441 7.7E+05 4.1E+06
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 - 1991-01-01 TO 1993-12-31
PERIOD OF RECORD FROM - 1991-01-09 TO 1991-06-18
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP NO3NO2 NH3 BOD
COND
02041 02061 07105 07554 08201
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 2 3 3 3 3
MEAN 795. 31.3 2.70 0.05 1.
MINIMUM
DATE OF MINIMUM
10TH PERCENTILE
MEDIAN
90TH PERCENTILE
MAXIMUM
DATE OF MAXIMUM
STANDARD DEVIATION
ALK pH SUSP SOL Mg PO4
TOTAL 105 DEG DISS TOTAL
10102 10302 10401 12103 15403
mg/L pH UNITS 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 3 3 2 1 1
MEAN 314.00 6.8 3. 25. 0.020
MINIMUM
DATE OF MINIMUM
10TH PERCENTILE
MEDIAN
90TH PERCENTILE
MAXIMUM
DATE OF MAXIMUM
STANDARD DEVIATION
SULPHATE Cl Ca FAEC COL
DISS DISS
16302 17201 20101 36011
mg/L SO4 mg/L Cl mg/L Ca No/100ml
NO. OF L-FLAGGED VALUES 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0
NO. OF UNFLAGGED VALUES 2 3 3 3
MEAN 64. 22. 70.933 3.
MINIMUM
DATE OF MINIMUM
10TH PERCENTILE
MEDIAN
90TH PERCENTILE
MAXIMUM
DATE OF MAXIMUM
STANDARD DEVIATION
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 - 1991-01-01 TO 1993-12-31
PERIOD OF RECORD FROM - 1991-01-16 TO 1993-10-05
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP ALK ALK pH
COND TOTAL TOTAL
02041 02061 10101 10102 10302
us/cm deg C mg/L 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 12 4 5 6 11
MEAN 1323. 26.1 176.00 188.33 7.4
MINIMUM 17. 20.0 72.00 136.00 7.0
DATE OF MINIMUM 1993-07-29 1991-01-16 1993-07-01 1991-04-30 1993-05-01
10TH PERCENTILE 222. 7.0
MEDIAN 1494. 26.9 208.00 190.00 7.3
90TH PERCENTILE 1603. 7.7
MAXIMUM 1660. 30.6 220.00 254.00 7.9
DATE OF MAXIMUM 1993-02-26 1991-05-10 1993-05-01 1991-01-16 1991-05-10
STANDARD DEVIATION 447. 5.1 61.51 41.81 0.3
Mg Mg SULPHATE Cl Ca
DISS DISS DISS DISS
12102 12103 16302 17201 20101
mg/L Mg 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 5 6 12 12 9
MEAN 40. 41. 394. 79. 152.578
MINIMUM 32. 24. 221. 22. 84.160
DATE OF MINIMUM 1991-01-16 1993-09-02 1991-10-29 1991-04-30 1991-10-29
10TH PERCENTILE 237. 24.
MEDIAN 34. 39. 412. 87. 144.000
90TH PERCENTILE 476. 101.
MAXIMUM 61. 63. 485. 130. 236.000
DATE OF MAXIMUM 1991-08-13 1993-07-29 1993-02-26 1991-01-16 1993-05-01
STANDARD DEVIATION 12. 13. 87. 31. 46.494
Ca
DISS
20105
mg/L Ca
NO. OF L-FLAGGED VALUES 0
NO. OF G-FLAGGED VALUES 0
NO. OF UNFLAGGED VALUES 5
MEAN 121.840
MINIMUM 84.160
DATE OF MINIMUM 1991-10-29
10TH PERCENTILE
MEDIAN 128.260
90TH PERCENTILE
MAXIMUM 148.290
DATE OF MAXIMUM 1991-01-16
STANDARD DEVIATION 23.983
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 - 1991-01-01 TO 1993-12-31
PERIOD OF RECORD FROM - 1991-01-29 TO 1993-11-23
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP B N KJEL NO3NO2
COND DISS
02041 02061 05101 07004 07105
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 11 11 3 4 8
MEAN 946. 24.1 0.4 1.3 1.91
MINIMUM 222. 18.0 0.1 0.10
DATE OF MINIMUM 1991-07-09 1993-03-04 1993-08-27 1993-11-23
10TH PERCENTILE 263. 18.2
MEDIAN 794. 23.0 1.3 1.96
90TH PERCENTILE 1570. 29.8
MAXIMUM 1584. 30.1 2.5 5.14
DATE OF MAXIMUM 1991-01-29 1993-04-27 1993-11-23 1993-03-04
STANDARD DEVIATION 444. 4.1 1.0 1.60
NH3 O2 BOD COD ALK
DISS TOTAL
07554 08101 08201 08301 10101
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 8 9 4 7
MEAN 6.79 1.4 11. 58. 286.86
MINIMUM 0.05 0.1 0. 1. 173.00
DATE OF MINIMUM 1993-01-11 1991-01-29 1993-04-27 1993-08-27 1993-08-27
10TH PERCENTILE
MEDIAN 1.00 0.7 8. 50. 310.00
90TH PERCENTILE
MAXIMUM 28.30 3.2 29. 131. 336.00
DATE OF MAXIMUM 1993-11-23 1991-07-09 1993-03-04 1993-03-04 1993-08-09
STANDARD DEVIATION 10.32 1.4 12. 66. 57.23
ALK pH SUSP SOL Na Mg
TOTAL 105 DEG DISS DISS
10102 10302 10401 11105 12102
mg/L pH UNITS mg/L mg/L Na mg/L Mg
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 1 11 6 3 3
MEAN 94.50 7.6 156. 63. 10.
MINIMUM 6.9 2.
DATE OF MINIMUM 1991-07-09 1993-08-09
10TH PERCENTILE 6.9
MEDIAN 7.5 24.
90TH PERCENTILE 8.1
MAXIMUM 8.7 836.
DATE OF MAXIMUM 1993-11-23 1993-08-27
STANDARD DEVIATION 0.5 334.
PO4-P P ORTHO PO4 SULPHATE Cl
SOL DISS TOTAL DISS
15254 15255 15403 16302 17201
mg/L PO4 mg/L P mg/L PO4 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 3 4 8 8
MEAN 0.365 0.159 0.834 410. 102.
MINIMUM 0.020 0.510 15. 6.
DATE OF MINIMUM 1993-08-09 1991-04-08 1991-07-09 1991-07-09
10TH PERCENTILE
MEDIAN 0.370 0.798 88. 23.
90TH PERCENTILE
MAXIMUM 0.749 1.230 2400. 646.
DATE OF MAXIMUM 1993-08-27 1991-10-15 1993-05-26 1993-03-04
STANDARD DEVIATION 0.217 0.338 811. 220.
K Ca Ca COLIFORM FAEC COL
DISS DISS DISS TOTAL
19105 20101 20105 36001 36011
mg/L K mg/L Ca mg/L Ca No/100ml No/100ml
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 3 2
NO. OF UNFLAGGED VALUES 1 11 3 4 9
MEAN 19.1 41.891 33.000 1.7E+07 1.7E+07
MINIMUM 28.000 3.0E+03 3.0E+03
DATE OF MINIMUM 1993-08-27 1993-01-11 1993-01-11
10TH PERCENTILE 28.100 3.0E+03
MEDIAN 37.000 1.0E+07 1.0E+06
90TH PERCENTILE 63.400 7.1E+07
MAXIMUM 66.000 9.0E+07 9.0E+07
DATE OF MAXIMUM 1993-01-11 1993-11-23 1993-11-23
STANDARD DEVIATION 14.611 3.3E+07 3.3E+07
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 - 1991-01-01 TO 1993-12-31
PERIOD OF RECORD FROM - 1991-01-21 TO 1993-12-13
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP N KJEL NO3NO2 NH3
COND
02041 02061 07004 07105 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 30 29 3 30 30
MEAN 519. 27.6 1.0 0.18 0.00
MINIMUM 278. 25.0 0.02 0.00
DATE OF MINIMUM 1991-09-09 1991-01-21 1993-04-19 1993-07-15
10TH PERCENTILE 295. 25.0 0.05 0.00
MEDIAN 472. 27.0 0.12 0.00
90TH PERCENTILE 750. 30.1 0.30 0.01
MAXIMUM 900. 33.0 1.00 0.02
DATE OF MAXIMUM 1991-04-29 1991-06-06 1991-07-09 1991-01-21
STANDARD DEVIATION 173. 2.0 0.18 0.01
O2 BOD COD ALK ALK
DISS TOTAL TOTAL
08101 08201 08301 10101 10102
mg/L O2 mg/L O2 mg/L O2 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 30 29 30 12 18
MEAN 7.5 3. 23. 136.50 141.28
MINIMUM 6.0 0. 6. 108.00 103.00
DATE OF MINIMUM 1991-09-09 1991-02-11 1991-12-02 1993-08-09 1991-09-09
10TH PERCENTILE 6.0 1. 8. 108.40 115.80
MEDIAN 7.5 3. 16. 130.00 141.50
90TH PERCENTILE 9.0 7. 32. 158.80 160.00
MAXIMUM 9.0 7. 167. 206.00 165.00
DATE OF MAXIMUM 1991-08-28 1991-09-09 1991-09-09 1993-05-27 1991-03-20
STANDARD DEVIATION 1.0 2. 29. 28.18 16.25
pH SUSP SOL SUSP SOL VOL SUSP PO4-P
105 DEG 180 DEG SOLIDS SOL
10302 10401 10408 10511 15254
pH UNITS 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 29 30 18 30 29
MEAN 8.0 61. 13. 19. 0.066
MINIMUM 7.2 8. 0. 0. 0.010
DATE OF MINIMUM 1991-01-21 1991-05-07 1991-08-20 1991-08-20 1991-01-21
10TH PERCENTILE 7.6 18. 2. 2. 0.010
MEDIAN 8.0 51. 10. 12. 0.010
90TH PERCENTILE 8.3 120. 22. 34. 0.200
MAXIMUM 8.5 152. 34. 82. 0.500
DATE OF MAXIMUM 1993-06-24 1993-06-24 1991-10-21 1993-09-14 1993-06-24
STANDARD DEVIATION 0.3 40. 9. 20. 0.110
P ORTHO PO4 SULPHATE Cl Ca
DISS TOTAL DISS DISS
15255 15403 16302 17201 20101
mg/L P mg/L PO4 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 12 17 30 30 30
MEAN 0.089 0.042 131. 9. 101.427
MINIMUM 0.000 0.010 3. 4. 33.600
DATE OF MINIMUM 1993-03-26 1991-02-11 1991-11-07 1991-08-28 1991-09-09
10TH PERCENTILE 0.002 0.010 31. 5. 61.200
MEDIAN 0.050 0.020 108. 8. 92.400
90TH PERCENTILE 0.188 0.100 236. 14. 147.600
MAXIMUM 0.300 0.200 310. 17. 154.800
DATE OF MAXIMUM 1993-07-15 1991-07-09 1991-05-29 1991-04-29 1993-04-19
STANDARD DEVIATION 0.093 0.050 86. 4. 33.598
Fe COLIFORM FAEC COL
DISS TOTAL
26102 36001 36011
mg/L Fe No/100ml No/100ml
NO. OF L-FLAGGED VALUES 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0
NO. OF UNFLAGGED VALUES 6 12 30
MEAN 0.00 1.1E+06 2.4E+05
MINIMUM 0.00 0.0E+00 0.0E+00
DATE OF MINIMUM 1993-03-26 1993-02-09 1993-02-09
10TH PERCENTILE 2.2E+02 2.0E+02
MEDIAN 0.00 2.8E+05 2.7E+03
90TH PERCENTILE 3.0E+06 7.0E+05
MAXIMUM 0.00 4.0E+06 2.4E+06
DATE OF MAXIMUM 1993-02-09 1993-10-21 1993-12-13
STANDARD DEVIATION 0.00 1.4E+06 6.0E+05
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 - 1991-01-01 TO 1993-12-31
PERIOD OF RECORD FROM - 1991-01-07 TO 1993-12-01
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP N KJEL NO3NO2 NH3
COND
02041 02061 07004 07105 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 32 28 5 32 31
MEAN 1577. 28.4 1.0 0.17 0.00
MINIMUM 270. 23.0 1.0 0.01 0.00
DATE OF MINIMUM 1991-10-08 1993-02-01 1993-03-01 1993-04-01 1993-01-11
10TH PERCENTILE 280. 24.8 0.01 0.00
MEDIAN 378. 28.0 1.0 0.10 0.00
90TH PERCENTILE 698. 31.1 0.29 0.01
MAXIMUM 36500. 37.0 1.1 1.00 0.01
DATE OF MAXIMUM 1991-05-14 1993-01-11 1993-07-05 1991-07-02 1991-05-02
STANDARD DEVIATION 6375. 2.9 0.0 0.17 0.00
O2 BOD COD ALK ALK
DISS TOTAL TOTAL
08101 08201 08301 10101 10102
mg/L O2 mg/L O2 mg/L O2 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 31 30 32 12 20
MEAN 5.6 4. 27. 121.00 123.40
MINIMUM 1.0 0. 6. 88.00 56.00
DATE OF MINIMUM 1993-07-05 1991-02-15 1991-02-15 1993-10-03 1991-02-15
10TH PERCENTILE 4.0 1. 8. 89.60 95.00
MEDIAN 6.0 4. 22. 120.00 124.00
90TH PERCENTILE 7.0 7. 46. 145.40 156.00
MAXIMUM 11.0 10. 106. 148.00 167.00
DATE OF MAXIMUM 1993-11-03 1991-11-07 1991-10-08 1993-06-01 1991-05-02
STANDARD DEVIATION 1.7 2. 22. 20.49 26.99
pH SUSP SOL SUSP SOL VOL SUSP PO4-P
105 DEG 180 DEG SOLIDS SOL
10302 10401 10408 10511 15254
pH UNITS 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 32 31 19 31 31
MEAN 7.8 54. 14. 16. 0.067
MINIMUM 6.5 14. 2. 2. 0.010
DATE OF MINIMUM 1991-02-15 1991-05-21 1991-05-02 1991-05-02 1991-03-07
10TH PERCENTILE 7.3 16. 4. 5. 0.010
MEDIAN 7.9 38. 10. 12. 0.040
90TH PERCENTILE 8.4 111. 24. 28. 0.100
MAXIMUM 8.7 266. 44. 86. 0.300
DATE OF MAXIMUM 1993-04-01 1991-02-15 1991-06-03 1993-05-03 1993-07-05
STANDARD DEVIATION 0.4 54. 10. 16. 0.064
P ORTHO PO4 SULPHATE Cl Ca
DISS TOTAL DISS DISS
15255 15403 16302 17201 20101
mg/L P mg/L PO4 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 12 19 32 32 32
MEAN 0.054 0.082 142. 571. 110.275
MINIMUM 0.010 0.010 2. 1. 21.600
DATE OF MINIMUM 1993-11-03 1991-03-07 1993-09-01 1991-10-08 1991-10-08
10TH PERCENTILE 0.010 0.010 17. 14. 41.440
MEDIAN 0.045 0.100 44. 32. 62.000
90TH PERCENTILE 0.091 0.110 129. 79. 89.920
MAXIMUM 0.200 0.300 2757. 17122. 1536.000
DATE OF MAXIMUM 1993-07-05 1991-11-07 1991-05-14 1991-05-14 1991-05-14
STANDARD DEVIATION 0.053 0.073 479. 3020. 260.972
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 9 31
MEAN 2.6E+06 1.3E+06
MINIMUM 0.0E+00 0.0E+00
DATE OF MINIMUM 1993-01-11 1993-01-11
10TH PERCENTILE 1.1E+02
MEDIAN 1.8E+06 2.4E+04
90TH PERCENTILE 3.2E+06
MAXIMUM 8.0E+06 1.8E+07
DATE OF MAXIMUM 1993-06-01 1993-10-03
STANDARD DEVIATION 2.6E+06 3.4E+06
| Home | Français |
|---|