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STATISTICS FOR MEXICO
GEMS/WATER - STATISTICAL SUMMARY BY STATION 2002-02-18 PAGE 477
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 - 1985-01-01 TO 1987-12-31
PERIOD OF RECORD FROM - 1985-03-18 TO 1987-12-01
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 2 0 5
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 29 30 28 17 20
MEAN 1084. 21.8 0.5 0.30 0.47
MINIMUM 700. 14.0 0.1 0.00 0.05
DATE OF MINIMUM 1986-05-06 1986-12-16 1987-04-07 1987-01-20 1986-01-28
10TH PERCENTILE 900. 15.0 0.3 0.07 0.05
MEDIAN 1100. 21.0 0.5 0.23 0.05
90TH PERCENTILE 1200. 29.0 1.1 0.43 0.08
MAXIMUM 1300. 33.0 1.1 1.10 10.05
DATE OF MAXIMUM 1986-03-02 1987-05-12 1986-03-02 1985-03-18 1986-11-17
STANDARD DEVIATION 127. 5.2 0.3 0.24 2.00
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 1 1 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 30 26 26 29 29
MEAN 8.6 2. 14. 161.21 7.9
MINIMUM 3.2 0. 2. 130.00 7.0
DATE OF MINIMUM 1986-02-18 1985-08-20 1985-10-09 1987-01-20 1986-02-18
10TH PERCENTILE 7.1 1. 3. 140.00 7.2
MEDIAN 8.8 1. 10. 150.00 8.0
90TH PERCENTILE 10.1 4. 29. 192.00 8.2
MAXIMUM 11.4 9. 46. 270.00 8.7
DATE OF MAXIMUM 1987-01-20 1987-08-11 1986-05-06 1986-04-01 1987-05-12
STANDARD DEVIATION 1.5 2. 12. 28.49 0.4
SUSP SOL SUSP SOL Mg PO4-P PO4
105 DEG 180 DEG DISS SOL TOTAL
10401 10408 12102 15254 15403
mg/L mg/L mg/L Mg mg/L PO4 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 1 1 6 24 27
MEAN 32. 20. 154. 0.072 0.147
MINIMUM 105. 0.001 0.001
DATE OF MINIMUM 1987-08-11 1986-01-28 1986-01-28
10TH PERCENTILE 0.003 0.003
MEDIAN 150. 0.045 0.118
90TH PERCENTILE 0.166 0.267
MAXIMUM 210. 0.400 0.510
DATE OF MAXIMUM 1985-09-10 1985-03-18 1985-07-09
STANDARD DEVIATION 44. 0.092 0.134
P SULPHATE Cl Ca COLIFORM
TOTAL DISS DISS TOTAL
15405 16302 17201 20101 36001
mg/L P 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 1 24 25 4 5
MEAN 0.103 188. 99. 156.750 17.
MINIMUM 38. 65. 60.000 4.
DATE OF MINIMUM 1985-09-10 1986-04-01 1985-09-10 1985-08-20
10TH PERCENTILE 52. 76.
MEDIAN 192. 90. 175.000 15.
90TH PERCENTILE 244. 136.
MAXIMUM 315. 150. 217.000 43.
DATE OF MAXIMUM 1985-03-18 1986-03-02 1987-08-11 1985-09-10
STANDARD DEVIATION 70. 25. 67.594 15.
FAEC COL FAEC
STREP
36011 36101
No/100ml No/100ml
NO. OF L-FLAGGED VALUES 2 0
NO. OF G-FLAGGED VALUES 0 0
NO. OF UNFLAGGED VALUES 20 21
MEAN 224. 3309.
MINIMUM 3. 4.
DATE OF MINIMUM 1986-05-06 1986-07-29
10TH PERCENTILE 3. 4.
MEDIAN 23. 23.
90TH PERCENTILE 464. 4570.
MAXIMUM 1500. 46000.
DATE OF MAXIMUM 1987-11-03 1987-10-13
STANDARD DEVIATION 438. 10077.
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 - 1985-01-01 TO 1987-12-31
PERIOD OF RECORD FROM - 1985-02-25 TO 1987-12-15
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP NO3NO2 O2 COD
COND DISS
02041 02061 07105 08101 08301
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 24 2 24 1
MEAN 1033. 21.4 1.59 7.2 44.
MINIMUM 449. 12.0 5.0
DATE OF MINIMUM 1987-10-15 1986-02-18 1985-09-24
10TH PERCENTILE 652. 14.8 5.2
MEDIAN 1050. 22.5 7.3
90TH PERCENTILE 1339. 25.0 8.5
MAXIMUM 1500. 28.0 9.0
DATE OF MAXIMUM 1985-02-25 1985-08-20 1986-03-18
STANDARD DEVIATION 268. 4.1 1.1
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 25 26 1 12 6
MEAN 254.11 7.9 64. 7. 109.
MINIMUM 182.00 6.0 4. 65.
DATE OF MINIMUM 1986-09-23 1987-02-11 1986-09-23 1987-08-15
10TH PERCENTILE 198.50 7.7 4.
MEDIAN 259.00 8.1 6. 82.
90TH PERCENTILE 296.00 8.2 8.
MAXIMUM 314.86 8.3 10. 237.
DATE OF MAXIMUM 1987-07-15 1987-01-14 1986-12-02 1987-07-15
STANDARD DEVIATION 32.77 0.4 2. 65.
Mg PO4-P PO4 SULPHATE Cl
DISS SOL TOTAL DISS
12103 15254 15403 16302 17201
mg/L Mg 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 6 20 26 25 25
MEAN 217. 0.093 0.259 225. 34.
MINIMUM 113. 0.010 0.010 106. 15.
DATE OF MINIMUM 1985-10-29 1985-10-29 1985-02-25 1986-09-23 1986-09-23
10TH PERCENTILE 0.020 0.032 123. 22.
MEDIAN 245. 0.080 0.240 225. 32.
90TH PERCENTILE 0.140 0.464 296. 42.
MAXIMUM 276. 0.250 0.700 394. 68.
DATE OF MAXIMUM 1985-08-20 1986-08-19 1987-06-17 1986-12-02 1985-09-24
STANDARD DEVIATION 66. 0.054 0.182 67. 10.
Ca COLIFORM
DISS TOTAL
20101 36001
mg/L Ca No/100ml
NO. OF L-FLAGGED VALUES 0 0
NO. OF G-FLAGGED VALUES 0 4
NO. OF UNFLAGGED VALUES 12 12
MEAN 174.002 1969.
MINIMUM 28.500 9.
DATE OF MINIMUM 1985-08-20 1985-09-24
10TH PERCENTILE 31.020 59.
MEDIAN 220.495 1750.
90TH PERCENTILE 272.138 2400.
MAXIMUM 285.000 11000.
DATE OF MAXIMUM 1985-12-13 1985-08-20
STANDARD DEVIATION 101.238 2611.
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 - 1985-01-01 TO 1987-12-31
PERIOD OF RECORD FROM - 1985-01-31 TO 1987-11-05
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP B NO3NO2 O2
COND DISS DISS
02041 02061 05101 07105 08101
us/cm deg C mg/L B 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 24 28 21 8 27
MEAN 1561. 25.3 0.5 0.39 8.3
MINIMUM 1030. 18.0 0.3 0.04 6.7
DATE OF MINIMUM 1987-11-05 1985-11-05 1985-05-07 1986-07-01 1987-04-21
10TH PERCENTILE 1108. 19.0 0.4 6.8
MEDIAN 1445. 26.0 0.5 0.45 7.7
90TH PERCENTILE 2050. 30.0 0.7 9.9
MAXIMUM 2450. 31.0 0.8 0.88 11.0
DATE OF MAXIMUM 1987-02-03 1987-08-04 1985-11-05 1986-03-03 1985-02-19
STANDARD DEVIATION 375. 3.9 0.2 0.29 1.2
BOD COD ALK pH SUSP SOL
TOTAL 105 DEG
08201 08301 10102 10302 10401
mg/L O2 mg/L O2 mg/L pH UNITS mg/L
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 24 26 27 27 4
MEAN 3. 39. 192.11 8.2 26.
MINIMUM 1. 2. 118.00 7.0 8.
DATE OF MINIMUM 1987-09-23 1986-07-01 1986-03-03 1987-05-26 1985-05-07
10TH PERCENTILE 1. 8. 156.80 7.9
MEDIAN 2. 23. 185.00 8.2 28.
90TH PERCENTILE 4. 97. 245.30 8.5
MAXIMUM 10. 140. 276.00 8.7 42.
DATE OF MAXIMUM 1987-08-04 1985-03-26 1986-08-26 1986-09-09 1985-06-06
STANDARD DEVIATION 2. 39. 33.92 0.3 17.
SUSP SOL Mg PO4-P PO4 SULPHATE
180 DEG DISS SOL TOTAL
10408 12103 15254 15403 16302
mg/L mg/L Mg 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 4 3 1 2 27
MEAN 12. 170. 0.950 1.450 321.
MINIMUM 4. 214.
DATE OF MINIMUM 1985-05-07 1986-11-02
10TH PERCENTILE 220.
MEDIAN 9. 302.
90TH PERCENTILE 454.
MAXIMUM 28. 568.
DATE OF MAXIMUM 1985-06-06 1985-08-01
STANDARD DEVIATION 11. 94.
Cl Ca COLIFORM FAEC COL
DISS DISS TOTAL
17201 20101 36001 36011
mg/L Cl mg/L Ca 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 28 3 12 1
MEAN 217. 308.000 1598. 230.
MINIMUM 135. 150.
DATE OF MINIMUM 1987-09-23 1985-05-07
10TH PERCENTILE 143. 176.
MEDIAN 204. 1215.
90TH PERCENTILE 286. 2400.
MAXIMUM 546. 4600.
DATE OF MAXIMUM 1985-08-01 1986-08-26
STANDARD DEVIATION 84. 1293.
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 - 1985-01-01 TO 1987-12-31
PERIOD OF RECORD FROM - 1985-01-21 TO 1987-12-01
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP N KJEL NO3-N NH3
COND
02041 02061 07001 07306 07554
us/cm deg C mg/L N mg/L N mg/L N
NO. OF L-FLAGGED VALUES 0 0 0 2 1
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 31 31 19 14 7
MEAN 849. 25.9 0.8 0.46 0.16
MINIMUM 343. 18.5 0.1 0.10 0.02
DATE OF MINIMUM 1985-07-18 1986-01-15 1985-11-07 1985-01-21 1986-04-10
10TH PERCENTILE 521. 19.6 0.1 0.10
MEDIAN 909. 26.5 0.4 0.47 0.11
90TH PERCENTILE 1114. 30.0 1.0 0.68
MAXIMUM 1152. 31.0 6.6 0.87 0.46
DATE OF MAXIMUM 1986-02-12 1987-05-19 1985-05-22 1985-05-22 1986-07-17
STANDARD DEVIATION 240. 3.7 1.5 0.22 0.15
NH3 O2 BOD COD ALK
DISS TOTAL
07555 08101 08201 08301 10102
mg/L N mg/L O2 mg/L O2 mg/L O2 mg/L
NO. OF L-FLAGGED VALUES 3 0 0 2 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 8 31 7 18 31
MEAN 0.09 8.4 3. 23. 183.50
MINIMUM 0.02 2.3 2. 1. 124.00
DATE OF MINIMUM 1985-01-21 1985-05-22 1986-07-17 1985-12-03 1985-07-18
10TH PERCENTILE 0.02 5.0 1. 151.40
MEDIAN 0.08 8.7 3. 12. 181.00
90TH PERCENTILE 0.14 11.7 20. 214.20
MAXIMUM 0.29 13.5 6. 244. 236.00
DATE OF MAXIMUM 1985-06-12 1987-02-11 1986-04-10 1985-05-22 1987-02-11
STANDARD DEVIATION 0.08 2.6 2. 52. 24.19
pH pH SUSP SOL SUSP SOL TENS
105 DEG 180 DEG ANIONIC
10301 10302 10401 10408 10702
pH UNITS pH UNITS mg/L mg/L mg/L
NO. OF L-FLAGGED VALUES 0 0 0 0 5
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 4 27 26 7 0
MEAN 8.4 8.2 217. 17. 0.1
MINIMUM 8.3 7.8 5. 1. 0.1
DATE OF MINIMUM 1987-08-18 1985-02-13 1987-01-15 1986-08-21 1987-08-18
10TH PERCENTILE 7.9 11.
MEDIAN 8.4 8.2 27. 13. 0.1
90TH PERCENTILE 8.3 515.
MAXIMUM 8.6 8.4 2950. 61. 0.1
DATE OF MAXIMUM 1987-09-14 1986-02-12 1985-05-22 1986-07-17 1987-12-01
STANDARD DEVIATION 0.1 0.2 588. 20. 0.0
Na Mg Al Al P ORTHO
DISS DISS TOTAL DISS TOTAL
11103 12103 13002 13102 15205
mg/L Na mg/L Mg mg/L Al mg/L Al mg/L P
NO. OF L-FLAGGED VALUES 0 0 2 2 2
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 30 31 0 0 10
MEAN 27. 27. 1.000 1.000 0.043
MINIMUM 6. 8. 0.010
DATE OF MINIMUM 1985-07-18 1985-07-18 1985-01-21
10TH PERCENTILE 10. 12. 0.010
MEDIAN 26. 27. 0.030
90TH PERCENTILE 44. 39. 0.067
MAXIMUM 53. 54. 0.160
DATE OF MAXIMUM 1987-05-19 1987-05-19 1985-06-12
STANDARD DEVIATION 12. 11. 0.042
P ORTHO PO4 P SULPHATE Cl
DISS TOTAL TOTAL DISS
15255 15403 15405 16302 17201
mg/L P mg/L PO4 mg/L P 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 5 7 10 31 26
MEAN 0.042 0.049 0.052 204. 29.
MINIMUM 0.020 0.030 0.010 43. 6.
DATE OF MINIMUM 1987-11-09 1986-01-15 1985-01-21 1985-07-18 1985-07-18
10TH PERCENTILE 0.010 77. 13.
MEDIAN 0.042 0.030 0.035 213. 29.
90TH PERCENTILE 0.080 307. 45.
MAXIMUM 0.060 0.100 0.210 350. 50.
DATE OF MAXIMUM 1987-08-18 1986-07-17 1985-06-12 1986-04-10 1987-05-19
STANDARD DEVIATION 0.015 0.032 0.056 91. 13.
Cl K Ca Cr Cr
DISS DISS DISS TOTAL DISS
17204 19103 20101 24002 24052
mg/L Cl mg/L K mg/L Ca mg/L Cr mg/L Cr
NO. OF L-FLAGGED VALUES 0 0 0 3 3
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 5 31 31 0 0
MEAN 23. 3.9 105.002 0.100 0.100
MINIMUM 15. 1.9 31.000
DATE OF MINIMUM 1987-08-18 1987-08-18 1987-07-20
10TH PERCENTILE 2.1 52.275
MEDIAN 23. 3.4 111.000
90TH PERCENTILE 5.5 139.900
MAXIMUM 34. 7.0 152.000
DATE OF MAXIMUM 1987-12-01 1987-04-20 1986-02-12
STANDARD DEVIATION 9. 1.3 33.056
Mn Mn Fe Fe Cu
TOTAL DISS TOTAL DISS TOTAL
25004 25101 26004 26102 29001
mg/L Mn mg/L Mn mg/L Fe mg/L Fe mg/L Cu
NO. OF L-FLAGGED VALUES 0 0 0 0 3
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 3 3 3 3 0
MEAN 0.07 0.07 0.40 0.27 0.100
MINIMUM
DATE OF MINIMUM
10TH PERCENTILE
MEDIAN
90TH PERCENTILE
MAXIMUM
DATE OF MAXIMUM
STANDARD DEVIATION
Cu Zn Zn COLIFORM FAEC COL
DISS TOTAL DISS TOTAL
29106 30001 30101 36001 36011
mg/L Cu mg/L Zn mg/L Zn No/100ml No/100ml
NO. OF L-FLAGGED VALUES 3 0 0 2 2
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 0 3 3 12 12
MEAN 0.100 0.113 0.050 3461. 1224.
MINIMUM 40. 2.
DATE OF MINIMUM 1985-08-15 1985-02-13
10TH PERCENTILE 80. 6.
MEDIAN 730. 96.
90TH PERCENTILE 2950. 2400.
MAXIMUM 35000. 9200.
DATE OF MAXIMUM 1985-05-22 1985-05-22
STANDARD DEVIATION 9138. 2462.
Cd Cd Ba Hg Pb
TOTAL DISS TOTAL DISS TOTAL
48001 48101 80011 80111 82001
mg/L Cd mg/L Cd ug/L Hg ug/L Hg mg/L Pb
NO. OF L-FLAGGED VALUES 3 3 2 3 3
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 0 0 1 0 0
MEAN 0.050 0.050 0.001 0.367 0.500
MINIMUM
DATE OF MINIMUM
10TH PERCENTILE
MEDIAN
90TH PERCENTILE
MAXIMUM
DATE OF MAXIMUM
STANDARD DEVIATION
Pb TEMP-AIR INST
DISS DISCHG
82101 97060 97160
mg/L Pb deg C m3/S
NO. OF L-FLAGGED VALUES 3 0 0
NO. OF G-FLAGGED VALUES 0 0 0
NO. OF UNFLAGGED VALUES 0 5 30
MEAN 0.500 27.2 343.1
MINIMUM 20.5 65.0
DATE OF MINIMUM 1987-12-01 1986-04-10
10TH PERCENTILE 81.0
MEDIAN 29.0 138.0
90TH PERCENTILE 610.0
MAXIMUM 34.5 2870.0
DATE OF MAXIMUM 1987-09-14 1985-07-18
STANDARD DEVIATION 6.2 528.5
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 - 1985-01-01 TO 1987-12-31
PERIOD OF RECORD FROM - 1985-01-04 TO 1987-11-10
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 20 24 21 8 23
MEAN 3983. 25.8 0.36 0.81 5.7
MINIMUM 140. 12.0 0.00 0.19 0.4
DATE OF MINIMUM 1986-07-24 1987-01-23 1986-12-05 1985-05-03 1987-04-07
10TH PERCENTILE 150. 16.8 0.01 1.1
MEDIAN 435. 27.0 0.26 0.89 5.5
90TH PERCENTILE 15000. 30.5 0.77 8.6
MAXIMUM 22000. 35.0 1.55 1.23 9.5
DATE OF MAXIMUM 1986-05-12 1986-05-12 1987-03-12 1985-12-13 1985-08-05
STANDARD DEVIATION 6901. 5.4 0.35 0.39 2.6
BOD COD ALK pH PO4-P
TOTAL SOL
08201 08301 10102 10302 15254
mg/L O2 mg/L O2 mg/L pH UNITS mg/L PO4
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 20 26 27 18
MEAN 13. 330. 118.96 7.5 0.069
MINIMUM 0. 10. 48.00 6.0 0.020
DATE OF MINIMUM 1985-12-13 1986-10-15 1985-08-05 1985-08-05 1985-02-01
10TH PERCENTILE 0. 18. 58.00 6.6 0.020
MEDIAN 10. 65. 87.00 7.5 0.040
90TH PERCENTILE 23. 1007. 200.20 8.0 0.099
MAXIMUM 46. 2077. 343.00 8.6 0.441
DATE OF MAXIMUM 1986-07-24 1986-04-16 1985-04-03 1986-04-16 1987-09-14
STANDARD DEVIATION 13. 600. 74.20 0.6 0.093
PO4 SULPHATE Cl COLIFORM FAEC COL
TOTAL DISS TOTAL
15403 16302 17201 36001 36011
mg/L PO4 mg/L SO4 mg/L Cl No/100ml No/100ml
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 1 0
NO. OF UNFLAGGED VALUES 25 17 25 16 14
MEAN 0.235 184. 2124. 4.5E+04 1.1E+04
MINIMUM 0.050 10. 14. 9.3E+01 3.0E+00
DATE OF MINIMUM 1985-07-03 1985-07-03 1986-07-24 1986-10-15 1985-08-05
10TH PERCENTILE 0.056 13. 29. 1.3E+02 7.8E+00
MEDIAN 0.193 166. 558. 2.4E+03 2.2E+02
90TH PERCENTILE 0.309 399. 5532. 9.3E+04 2.0E+04
MAXIMUM 1.180 497. 18600. 4.6E+05 1.1E+05
DATE OF MAXIMUM 1986-08-14 1987-05-13 1987-11-10 1986-08-14 1987-09-14
STANDARD DEVIATION 0.269 161. 4042. 1.2E+05 3.0E+04
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 - 1985-01-01 TO 1987-12-31
PERIOD OF RECORD FROM - 1985-01-16 TO 1987-10-21
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
TEMP NH3 NH3 O2 COD
DISS
02061 07553 07554 08101 08301
deg C mg/L N mg/L N mg/L O2 mg/L O2
NO. OF L-FLAGGED VALUES 0 2 1 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 26 6 11 39 4
MEAN 28.0 0.55 0.44 6.4 130.
MINIMUM 22.0 0.10 0.05 4.3 7.
DATE OF MINIMUM 1986-10-30 1985-02-26 1985-11-27 1986-06-19 1985-03-14
10TH PERCENTILE 26.2 0.06 4.5
MEDIAN 28.0 0.20 0.20 6.0 130.
90TH PERCENTILE 29.0 0.40 8.9
MAXIMUM 30.0 2.90 2.90 12.1 254.
DATE OF MAXIMUM 1985-05-15 1985-06-25 1985-06-25 1985-03-12 1985-05-14
STANDARD DEVIATION 1.6 0.95 0.78 1.9 142.
ALK pH SUSP SOL SUSP SOL P ORTHO
TOTAL 105 DEG 180 DEG TOTAL
10102 10302 10401 10408 15205
mg/L pH UNITS mg/L mg/L 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 38 14 17 3 18
MEAN 148.53 8.1 2123. 310. 0.248
MINIMUM 102.00 7.7 17. 0.050
DATE OF MINIMUM 1986-06-19 1987-10-20 1986-11-18 1985-03-12
10TH PERCENTILE 116.00 7.7 22. 0.050
MEDIAN 141.50 8.1 841. 0.070
90TH PERCENTILE 186.40 8.5 4671. 0.560
MAXIMUM 212.00 8.9 10500. 1.800
DATE OF MAXIMUM 1985-02-18 1985-01-16 1985-06-25 1985-04-17
STANDARD DEVIATION 27.17 0.4 2780. 0.476
PO4-P PO4 P SULPHATE Cl
SOL TOTAL TOTAL DISS
15254 15403 15405 16302 17201
mg/L PO4 mg/L PO4 mg/L P mg/L SO4 mg/L Cl
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 5 0
NO. OF UNFLAGGED VALUES 18 18 17 33 21
MEAN 0.356 0.729 0.529 554. 121.
MINIMUM 0.050 0.130 0.100 14. 20.
DATE OF MINIMUM 1985-05-15 1985-01-16 1986-11-18 1986-09-30 1986-10-30
10TH PERCENTILE 0.058 0.130 0.100 40. 22.
MEDIAN 0.070 0.420 0.200 221. 36.
90TH PERCENTILE 1.194 1.638 1.414 654. 364.
MAXIMUM 1.800 1.890 1.890 5476. 611.
DATE OF MAXIMUM 1985-04-15 1985-07-16 1985-04-17 1986-11-18 1985-08-27
STANDARD DEVIATION 0.527 0.656 0.588 1212. 166.
Cl COLIFORM FAEC COL
DISS TOTAL
17204 36001 36011
mg/L Cl No/100ml No/100ml
NO. OF L-FLAGGED VALUES 0 1 1
NO. OF G-FLAGGED VALUES 0 2 0
NO. OF UNFLAGGED VALUES 17 24 38
MEAN 66. 1.1E+05 9.7E+04
MINIMUM 20. 2.3E+02 2.3E+02
DATE OF MINIMUM 1986-10-30 1985-01-30 1985-01-30
10TH PERCENTILE 22. 8.6E+02 8.4E+02
MEDIAN 34. 4.6E+04 4.6E+04
90TH PERCENTILE 135. 2.4E+05 2.4E+05
MAXIMUM 294. 4.6E+05 4.6E+05
DATE OF MAXIMUM 1987-08-12 1986-11-18 1986-11-18
STANDARD DEVIATION 73. 1.3E+05 1.2E+05
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 - 1985-01-01 TO 1987-12-31
PERIOD OF RECORD FROM - 1985-03-07 TO 1987-12-17
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 8 21 6 21 11
MEAN 1323. 20.3 0.3 4.4 0.18
MINIMUM 330. 7.6 0.0 0.2 0.05
DATE OF MINIMUM 1985-06-27 1987-02-18 1985-10-23 1986-01-21 1985-03-07
10TH PERCENTILE 8.4 1.1 0.05
MEDIAN 795. 20.0 0.2 4.0 0.22
90TH PERCENTILE 24.0 7.3 0.26
MAXIMUM 5207. 40.0 0.9 13.2 0.28
DATE OF MAXIMUM 1987-11-12 1986-06-20 1985-12-06 1986-05-16 1987-07-13
STANDARD DEVIATION 1583. 6.6 0.3 3.5 0.08
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 1 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 20 12 24 24 8
MEAN 8.04 1.7 53. 126. 386.38
MINIMUM 0.89 0.0 10. 38. 220.00
DATE OF MINIMUM 1987-07-13 1987-12-17 1986-06-20 1987-09-10 1985-03-07
10TH PERCENTILE 1.10 0.0 13. 52.
MEDIAN 6.57 1.0 30. 98. 355.00
90TH PERCENTILE 13.90 3.0 104. 260.
MAXIMUM 31.50 5.9 190. 350. 720.00
DATE OF MAXIMUM 1986-03-20 1986-08-22 1987-02-18 1987-02-18 1986-04-15
STANDARD DEVIATION 7.19 1.6 49. 85. 161.12
pH SUSP SOL SUSP SOL Na Mg
105 DEG 180 DEG DISS DISS
10302 10401 10408 11105 12102
pH UNITS mg/L 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 27 6 6 9 9
MEAN 7.5 328. 73. 33. 19.
MINIMUM 7.0 28. 12. 3. 0.
DATE OF MINIMUM 1986-01-21 1985-03-07 1985-03-07 1985-05-31 1985-05-31
10TH PERCENTILE 7.2
MEDIAN 7.4 175. 30. 44. 21.
90TH PERCENTILE 7.8
MAXIMUM 8.0 1180. 208. 66. 40.
DATE OF MAXIMUM 1985-12-06 1985-04-11 1985-04-11 1985-11-15 1985-08-23
STANDARD DEVIATION 0.2 430. 81. 27. 15.
PO4-P PO4 SULPHATE Cl K
SOL TOTAL DISS DISS
15254 15403 16302 17201 19105
mg/L PO4 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 19 15 9 19 9
MEAN 4.794 5.934 63. 27. 7.6
MINIMUM 0.680 1.200 2. 0. 0.3
DATE OF MINIMUM 1987-10-07 1987-12-17 1985-05-31 1985-05-31 1985-04-11
10TH PERCENTILE 0.698 1.250 1.
MEDIAN 3.200 5.450 44. 26. 11.1
90TH PERCENTILE 8.805 10.000 51.
MAXIMUM 20.000 10.600 260. 58. 12.5
DATE OF MAXIMUM 1986-09-11 1985-04-11 1985-12-06 1986-04-15 1985-12-06
STANDARD DEVIATION 4.768 3.683 80. 19. 5.6
Ca COLIFORM FAEC COL INST
DISS TOTAL DISCHG
20101 36001 36011 97160
mg/L Ca No/100ml No/100ml m3/S
NO. OF L-FLAGGED VALUES 0 1 1 0
NO. OF G-FLAGGED VALUES 0 11 15 0
NO. OF UNFLAGGED VALUES 8 0 4 15
MEAN 45.996 1.8E+05 3.7E+05 9492.1
MINIMUM 4.660 1.1E+04 1.1E+04 3.4
DATE OF MINIMUM 1985-05-31 1986-02-21 1986-05-16 1987-09-10
10TH PERCENTILE 1.1E+04 1.5E+04 1625.7
MEDIAN 57.550 1.0E+05 2.4E+05 4800.0
90TH PERCENTILE 2.4E+05 1.0E+06 12706.5
MAXIMUM 82.000 1.0E+06 1.0E+06 48552.0
DATE OF MAXIMUM 1985-10-23 1986-06-20 1987-10-07 1986-06-20
STANDARD DEVIATION 29.999 2.7E+05 3.5E+05 11602.3
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 - 1985-01-01 TO 1987-12-31
PERIOD OF RECORD FROM - 1985-01-29 TO 1987-11-09
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 17 27 15 1 28
MEAN 437. 22.7 2.13 2.78 3.6
MINIMUM 200. 15.0 0.25 0.2
DATE OF MINIMUM 1986-10-09 1986-12-02 1986-02-18 1985-02-19
10TH PERCENTILE 284. 18.7 0.32 0.9
MEDIAN 390. 22.0 2.18 3.4
90TH PERCENTILE 632. 26.3 4.22 6.1
MAXIMUM 780. 30.0 4.72 7.1
DATE OF MAXIMUM 1987-07-07 1986-06-25 1987-02-10 1985-07-22
STANDARD DEVIATION 142. 3.5 1.51 2.0
BOD COD ALK pH SUSP SOL
TOTAL 105 DEG
08201 08301 10102 10302 10401
mg/L O2 mg/L O2 mg/L pH UNITS mg/L
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 25 28 28 28 5
MEAN 11. 69. 215.21 7.4 106.
MINIMUM 1. 4. 35.00 4.6 30.
DATE OF MINIMUM 1987-07-07 1986-07-17 1986-05-15 1987-02-10 1985-04-17
10TH PERCENTILE 2. 10. 116.60 6.0
MEDIAN 6. 66. 200.50 7.7 85.
90TH PERCENTILE 18. 118. 246.40 8.0
MAXIMUM 53. 210. 564.00 8.3 215.
DATE OF MAXIMUM 1986-03-12 1987-01-20 1986-04-16 1985-08-13 1985-02-19
STANDARD DEVIATION 13. 53. 107.20 0.8 78.
SUSP SOL Mg PO4-P PO4 SULPHATE
180 DEG DISS SOL TOTAL
10408 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 2 1 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 5 1 13 20 13
MEAN 70. 45. 0.154 0.374 30.
MINIMUM 20. 0.020 0.020 6.
DATE OF MINIMUM 1985-04-17 1985-09-21 1986-07-17 1985-07-22
10TH PERCENTILE 0.020 0.102 7.
MEDIAN 75. 0.050 0.220 27.
90TH PERCENTILE 0.389 0.742 43.
MAXIMUM 115. 0.680 0.851 66.
DATE OF MAXIMUM 1985-02-19 1986-04-16 1986-02-18 1987-02-10
STANDARD DEVIATION 40. 0.202 0.279 16.
Cl Ca COLIFORM FAEC COL
DISS DISS TOTAL
17201 20101 36001 36011
mg/L Cl mg/L Ca No/100ml No/100ml
NO. OF L-FLAGGED VALUES 0 0 2 1
NO. OF G-FLAGGED VALUES 0 0 1 0
NO. OF UNFLAGGED VALUES 28 1 7 15
MEAN 23. 121.000 5.1E+04 1.1E+05
MINIMUM 11. 3.0E+01 9.0E+03
DATE OF MINIMUM 1986-07-17 1986-11-04 1986-04-16
10TH PERCENTILE 12. 3.0E+01 9.6E+03
MEDIAN 22. 2.0E+04 4.0E+04
90TH PERCENTILE 33. 1.1E+05 2.4E+05
MAXIMUM 47. 2.3E+05 4.3E+05
DATE OF MAXIMUM 1985-03-19 1986-08-13 1985-02-19
STANDARD DEVIATION 9. 7.4E+04 1.2E+05
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 - 1985-01-01 TO 1987-12-31
PERIOD OF RECORD FROM - 1986-01-12 TO 1987-09-07
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 2 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 6 1 7 5 7
MEAN 740. 26.0 0.7 0.11 17.5
MINIMUM 700. 0.6 0.03 6.7
DATE OF MINIMUM 1986-01-12 1987-09-07 1986-01-12 1986-06-20
10TH PERCENTILE
MEDIAN 730. 0.7 0.10 7.3
90TH PERCENTILE
MAXIMUM 800. 0.8 0.29 79.0
DATE OF MAXIMUM 1986-05-22 1986-06-20 1986-04-11 1986-01-12
STANDARD DEVIATION 46. 0.1 0.09 27.1
BOD ALK pH SUSP SOL SUSP SOL
TOTAL 105 DEG 180 DEG
08201 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 6 7 7 6 6
MEAN 2. 259.86 8.3 31. 13.
MINIMUM 1. 60.00 7.2 19. 7.
DATE OF MINIMUM 1986-05-22 1987-09-07 1987-09-07 1987-09-07 1987-01-29
10TH PERCENTILE
MEDIAN 1. 283.00 8.6 29. 10.
90TH PERCENTILE
MAXIMUM 7. 333.00 8.7 50. 20.
DATE OF MAXIMUM 1986-06-20 1986-06-20 1986-06-20 1986-01-12 1986-02-12
STANDARD DEVIATION 2. 90.28 0.6 10. 6.
PO4-P PO4 Cl FAEC COL
SOL TOTAL DISS
15254 15403 17203 36011
mg/L PO4 mg/L PO4 mg/L Cl No/100ml
NO. OF L-FLAGGED VALUES 0 0 0 2
NO. OF G-FLAGGED VALUES 0 0 0 0
NO. OF UNFLAGGED VALUES 4 4 1 2
MEAN 0.377 0.625 30. 4.
MINIMUM 0.360 0.450 3.
DATE OF MINIMUM 1987-01-29 1987-01-29 1986-01-12
10TH PERCENTILE
MEDIAN 0.380 0.660 4.
90TH PERCENTILE
MAXIMUM 0.390 0.730 7.
DATE OF MAXIMUM 1986-02-12 1987-09-07 1987-09-07
STANDARD DEVIATION 0.015 0.121 2.
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 - 1985-01-01 TO 1987-12-31
PERIOD OF RECORD FROM - 1986-02-19 TO 1987-10-22
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 2 1 2
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 16 14 0 9 0
MEAN 1179. 21.6 0.1 0.29 0.05
MINIMUM 936. 7.9 0.01
DATE OF MINIMUM 1986-11-21 1987-05-21 1987-10-22
10TH PERCENTILE 947. 9.9 0.01
MEDIAN 1069. 22.5 0.34
90TH PERCENTILE 1452. 27.5 0.40
MAXIMUM 1600. 37.0 0.48
DATE OF MAXIMUM 1986-07-19 1986-06-16 1986-09-23
STANDARD DEVIATION 212. 7.3 0.15
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 12 13 10 15 9
MEAN 8.1 1. 28. 159.60 8.3
MINIMUM 5.4 0. 7. 90.00 7.9
DATE OF MINIMUM 1986-09-23 1986-06-16 1987-10-22 1986-10-23 1986-03-15
10TH PERCENTILE 5.8 0. 7. 92.50
MEDIAN 8.4 1. 22. 162.00 8.4
90TH PERCENTILE 9.3 1. 59. 205.00
MAXIMUM 9.4 2. 70. 220.00 8.9
DATE OF MAXIMUM 1987-02-13 1987-01-15 1986-10-23 1986-02-19 1986-05-04
STANDARD DEVIATION 1.2 0. 21. 40.62 0.3
PO4 SULPHATE Cl
TOTAL DISS
15403 16302 17201
mg/L PO4 mg/L SO4 mg/L Cl
NO. OF L-FLAGGED VALUES 3 0 0
NO. OF G-FLAGGED VALUES 0 0 0
NO. OF UNFLAGGED VALUES 1 16 16
MEAN 0.020 246. 156.
MINIMUM 0.020 120. 109.
DATE OF MINIMUM 1987-04-24 1987-10-22 1986-12-05
10TH PERCENTILE 134. 112.
MEDIAN 0.020 260. 150.
90TH PERCENTILE 301. 211.
MAXIMUM 0.020 336. 226.
DATE OF MAXIMUM 1987-10-22 1987-04-24 1987-10-22
STANDARD DEVIATION 0.000 59. 34.
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 - 1985-01-01 TO 1987-12-31
PERIOD OF RECORD FROM - 1985-01-07 TO 1987-12-01
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 27 29 29 27 23
MEAN 1068. 27.3 4.99 5.0 2.
MINIMUM 850. 26.0 3.10 3.6 1.
DATE OF MINIMUM 1986-04-08 1985-01-07 1986-05-13 1987-10-20 1985-05-04
10TH PERCENTILE 891. 26.4 3.19 4.2 1.
MEDIAN 1100. 27.0 4.90 4.8 2.
90TH PERCENTILE 1172. 28.0 6.21 5.7 4.
MAXIMUM 1400. 29.0 12.40 7.6 5.
DATE OF MAXIMUM 1987-12-01 1987-10-20 1985-03-26 1986-07-22 1986-10-21
STANDARD DEVIATION 125. 0.7 1.74 0.8 1.
COD ALK pH Na Mg
TOTAL DISS DISS
08301 10102 10302 11105 12102
mg/L O2 mg/L pH UNITS 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 26 26 29 12 27
MEAN 15. 320.12 7.2 58. 50.
MINIMUM 3. 228.00 7.0 40. 27.
DATE OF MINIMUM 1987-12-01 1987-07-23 1985-01-07 1986-10-21 1986-08-12
10TH PERCENTILE 7. 271.20 7.0 41. 34.
MEDIAN 14. 316.00 7.2 48. 49.
90TH PERCENTILE 28. 368.00 7.4 86. 62.
MAXIMUM 30. 394.00 7.7 103. 75.
DATE OF MAXIMUM 1986-08-12 1986-06-03 1986-05-13 1987-04-21 1986-01-14
STANDARD DEVIATION 8. 36.39 0.2 21. 10.
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 14 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 10 26 27 11 26
MEAN 0.033 30. 177. 5.7 90.608
MINIMUM 0.020 19. 71. 4.0 62.000
DATE OF MINIMUM 1985-01-07 1986-08-12 1987-08-25 1985-03-26 1987-10-20
10TH PERCENTILE 0.020 23. 92. 4.0 70.140
MEDIAN 0.020 31. 189. 6.0 93.350
90TH PERCENTILE 0.065 36. 195. 7.9 101.000
MAXIMUM 0.110 48. 202. 8.0 105.000
DATE OF MAXIMUM 1986-03-04 1987-04-21 1987-01-20 1987-06-16 1985-05-04
STANDARD DEVIATION 0.023 6. 34. 1.5 11.810
COLIFORM FAEC COL
TOTAL
36001 36011
No/100ml No/100ml
NO. OF L-FLAGGED VALUES 0 7
NO. OF G-FLAGGED VALUES 2 0
NO. OF UNFLAGGED VALUES 5 12
MEAN 7476. 447.
MINIMUM 320. 30.
DATE OF MINIMUM 1986-12-01 1986-05-13
10TH PERCENTILE 30.
MEDIAN 750. 40.
90TH PERCENTILE 627.
MAXIMUM 24000. 4600.
DATE OF MAXIMUM 1986-06-03 1986-06-03
STANDARD DEVIATION 11311. 1141.
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 - 1985-01-01 TO 1987-12-31
PERIOD OF RECORD FROM - 1985-03-18 TO 1987-10-06
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 12 17 1 4 15
MEAN 541. 27.0 0.4 0.3 2.16
MINIMUM 384. 17.0 0.1 0.77
DATE OF MINIMUM 1985-06-05 1985-11-02 1986-02-04 1986-11-10
10TH PERCENTILE 388. 21.9 0.79
MEDIAN 566. 28.0 0.2 1.81
90TH PERCENTILE 618. 30.0 3.67
MAXIMUM 672. 31.5 0.8 4.36
DATE OF MAXIMUM 1985-09-23 1985-04-01 1986-04-03 1986-12-01
STANDARD DEVIATION 88. 3.3 0.3 1.12
NH3 BOD ALK pH PO4-P
TOTAL SOL
07554 08201 10102 10302 15254
mg/L N mg/L O2 mg/L pH UNITS mg/L PO4
NO. OF L-FLAGGED VALUES 12 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 3 14 20 20 1
MEAN 0.05 1. 281.55 7.6 0.050
MINIMUM 0.05 0. 157.00 7.2
DATE OF MINIMUM 1985-04-01 1985-04-01 1986-05-27 1986-02-04
10TH PERCENTILE 0.05 0. 176.00 7.2
MEDIAN 0.05 0. 285.00 7.4
90TH PERCENTILE 0.05 1. 318.00 7.9
MAXIMUM 0.11 2. 608.00 8.5
DATE OF MAXIMUM 1985-06-05 1986-08-18 1985-03-18 1986-06-16
STANDARD DEVIATION 0.02 1. 96.62 0.3
PO4 SULPHATE Cl FAEC COL FAEC
TOTAL DISS STREP
15403 16302 17201 36011 36101
mg/L PO4 mg/L SO4 mg/L Cl No/100ml No/100ml
NO. OF L-FLAGGED VALUES 11 0 0 5 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 5 18 19 2 1
MEAN 0.037 31. 33. 3. 4.
MINIMUM 0.020 3. 9. 3.
DATE OF MINIMUM 1985-06-05 1986-08-18 1986-08-18 1986-11-10
10TH PERCENTILE 0.020 4. 19.
MEDIAN 0.020 26. 24. 3.
90TH PERCENTILE 0.036 58. 29.
MAXIMUM 0.260 74. 210. 4.
DATE OF MAXIMUM 1985-11-02 1986-12-01 1985-09-23 1986-04-03
STANDARD DEVIATION 0.060 28. 43. 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 - 1985-01-01 TO 1987-12-31
PERIOD OF RECORD FROM - 1985-01-11 TO 1987-12-08
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP ALK pH Na
COND TOTAL DISS
02041 02061 10102 10302 11105
us/cm deg C mg/L pH UNITS 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 21 15 23 24 10
MEAN 1437. 23.3 209.39 7.5 52.
MINIMUM 1343. 15.0 140.00 6.5 3.
DATE OF MINIMUM 1987-02-24 1986-02-26 1986-02-26 1985-07-15 1986-02-26
10TH PERCENTILE 1351. 16.0 177.40 7.2 3.
MEDIAN 1432. 25.0 212.00 7.5 6.
90TH PERCENTILE 1538. 27.5 226.40 7.9 125.
MAXIMUM 1550. 28.0 236.00 8.0 129.
DATE OF MAXIMUM 1987-12-08 1985-06-11 1987-06-05 1987-11-27 1985-09-25
STANDARD DEVIATION 67. 4.4 20.59 0.3 60.
Mg SULPHATE Cl Ca
DISS DISS DISS
12102 16302 17201 20101
mg/L Mg mg/L SO4 mg/L Cl mg/L Ca
NO. OF L-FLAGGED VALUES 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0
NO. OF UNFLAGGED VALUES 23 21 23 23
MEAN 40. 405. 85. 117.883
MINIMUM 16. 321. 56. 76.100
DATE OF MINIMUM 1985-04-15 1987-10-20 1985-09-25 1985-09-25
10TH PERCENTILE 30. 342. 76. 88.660
MEDIAN 39. 398. 86. 120.000
90TH PERCENTILE 51. 432. 91. 131.600
MAXIMUM 55. 633. 100. 140.000
DATE OF MAXIMUM 1987-10-20 1987-12-08 1987-06-05 1987-11-27
STANDARD DEVIATION 9. 62. 8. 16.244
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 - 1985-01-01 TO 1987-12-31
PERIOD OF RECORD FROM - 1985-01-16 TO 1987-09-12
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 21 19 7 6 22
MEAN 699. 23.1 0.4 8.3 2.07
MINIMUM 300. 10.0 0.3 3.6 0.45
DATE OF MINIMUM 1985-10-25 1985-02-12 1987-02-03 1985-06-03 1986-05-14
10TH PERCENTILE 300. 14.5 0.66
MEDIAN 635. 25.0 0.4 4.9 1.73
90TH PERCENTILE 1378. 28.0 3.91
MAXIMUM 2100. 30.0 0.7 22.5 5.34
DATE OF MAXIMUM 1985-05-13 1987-08-12 1987-05-19 1985-07-15 1987-02-03
STANDARD DEVIATION 474. 5.1 0.2 7.3 1.33
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 4 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0 0
NO. OF UNFLAGGED VALUES 11 11 6 26 23
MEAN 25.68 1.0 21. 407. 258.26
MINIMUM 9.57 0.0 5. 22. 165.00
DATE OF MINIMUM 1985-04-01 1985-12-02 1987-05-19 1986-05-14 1985-01-16
10TH PERCENTILE 9.62 0.1 57. 175.60
MEDIAN 20.30 0.6 19. 530. 232.00
90TH PERCENTILE 37.67 2.2 636. 345.40
MAXIMUM 66.00 2.5 48. 953. 537.00
DATE OF MAXIMUM 1985-05-13 1987-01-20 1986-08-04 1985-12-02 1985-05-13
STANDARD DEVIATION 16.65 0.9 15. 270. 94.04
pH SUSP SOL Na Mg PO4-P
105 DEG DISS DISS SOL
10302 10401 11105 12102 15254
pH UNITS mg/L mg/L Na mg/L Mg mg/L PO4
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 6 8 2 23
MEAN 7.6 107. 93. 11. 1.610
MINIMUM 6.5 28. 3. 0.020
DATE OF MINIMUM 1985-08-19 1985-11-05 1985-01-16 1985-02-12
10TH PERCENTILE 6.8 0.058
MEDIAN 7.6 102. 92. 0.900
90TH PERCENTILE 8.4 1.945
MAXIMUM 8.9 185. 241. 16.000
DATE OF MAXIMUM 1987-05-19 1985-03-05 1985-12-02 1985-05-13
STANDARD DEVIATION 0.6 65. 73. 3.161
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 1
NO. OF G-FLAGGED VALUES 0 0 0 0 1
NO. OF UNFLAGGED VALUES 27 21 25 2 8
MEAN 2.244 123. 139. 20.250 1.7E+05
MINIMUM 0.440 30. 22. 2.3E+02
DATE OF MINIMUM 1987-02-03 1986-05-14 1985-02-12 1986-09-09
10TH PERCENTILE 0.647 31. 25. 2.3E+02
MEDIAN 0.970 106. 102. 9.5E+04
90TH PERCENTILE 2.327 277. 272. 2.4E+05
MAXIMUM 16.000 363. 279. 7.5E+05
DATE OF MAXIMUM 1985-05-13 1986-08-04 1985-09-13 1985-03-05
STANDARD DEVIATION 3.978 92. 107. 2.3E+05
FAEC COL
36011
No/100ml
NO. OF L-FLAGGED VALUES 2
NO. OF G-FLAGGED VALUES 0
NO. OF UNFLAGGED VALUES 12
MEAN 1.4E+05
MINIMUM 2.4E+01
DATE OF MINIMUM 1987-01-20
10TH PERCENTILE 2.4E+01
MEDIAN 6.0E+03
90TH PERCENTILE 3.3E+05
MAXIMUM 9.3E+05
DATE OF MAXIMUM 1985-07-15
STANDARD DEVIATION 2.6E+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 - 1985-01-01 TO 1987-12-31
PERIOD OF RECORD FROM - 1985-01-16 TO 1987-10-30
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 31 16 17 16 29
MEAN 548. 28.2 0.86 0.04 7.2
MINIMUM 310. 23.0 0.15 0.01 5.0
DATE OF MINIMUM 1986-09-18 1986-01-22 1986-04-15 1986-09-18 1985-06-19
10TH PERCENTILE 350. 23.6 0.18 0.01 5.9
MEDIAN 550. 28.0 0.55 0.04 7.0
90TH PERCENTILE 709. 31.8 1.64 0.10 8.0
MAXIMUM 950. 33.0 2.12 0.10 9.0
DATE OF MAXIMUM 1987-05-25 1987-02-27 1986-09-18 1986-05-15 1986-02-12
STANDARD DEVIATION 163. 3.1 0.62 0.04 1.0
BOD COD ALK pH PO4-P
TOTAL SOL
08201 08301 10102 10302 15254
mg/L O2 mg/L O2 mg/L pH UNITS 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 21 30 31 31 2
MEAN 2. 22. 151.68 7.8 0.205
MINIMUM 1. 2. 91.00 7.5
DATE OF MINIMUM 1985-09-18 1985-02-13 1987-09-30 1985-11-13
10TH PERCENTILE 1. 2. 127.40 7.5
MEDIAN 1. 15. 145.00 7.9
90TH PERCENTILE 3. 42. 172.60 8.1
MAXIMUM 6. 107. 279.00 8.2
DATE OF MAXIMUM 1987-05-25 1987-03-23 1987-07-22 1986-11-17
STANDARD DEVIATION 1. 22. 29.99 0.2
PO4 SULPHATE Cl COLIFORM FAEC COL
TOTAL DISS TOTAL
15403 16302 17201 36001 36011
mg/L PO4 mg/L SO4 mg/L Cl No/100ml No/100ml
NO. OF L-FLAGGED VALUES 0 0 0 1 2
NO. OF G-FLAGGED VALUES 0 0 0 6 2
NO. OF UNFLAGGED VALUES 2 15 31 1 11
MEAN 0.241 109. 11. 3679. 7410.
MINIMUM 30. 5. 30. 3.
DATE OF MINIMUM 1987-09-30 1985-10-11 1987-02-27 1986-11-17
10TH PERCENTILE 31. 6. 16.
MEDIAN 91. 9. 2400. 2400.
90TH PERCENTILE 212. 16. 19500.
MAXIMUM 271. 55. 15000. 46000.
DATE OF MAXIMUM 1986-04-15 1985-03-13 1987-01-12 1986-06-20
STANDARD DEVIATION 75. 9. 4649. 12691.
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 - 1985-01-01 TO 1987-12-31
PERIOD OF RECORD FROM - 1985-01-09 TO 1987-10-26
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 32 20 16 14 31
MEAN 436. 29.4 0.89 0.15 5.1
MINIMUM 290. 23.0 0.30 0.01 0.4
DATE OF MINIMUM 1987-08-13 1986-01-13 1986-05-07 1987-04-20 1986-06-10
10TH PERCENTILE 300. 23.0 0.30 0.01 3.0
MEDIAN 400. 29.0 0.75 0.10 5.0
90TH PERCENTILE 600. 34.0 1.49 0.37 7.0
MAXIMUM 840. 37.0 2.34 0.40 9.0
DATE OF MAXIMUM 1987-05-18 1986-07-17 1986-09-10 1986-04-02 1986-01-13
STANDARD DEVIATION 129. 3.7 0.55 0.14 1.8
BOD COD ALK pH PO4-P
TOTAL SOL
08201 08301 10102 10302 15254
mg/L O2 mg/L O2 mg/L pH UNITS 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 19 30 31 32 2
MEAN 6. 22. 139.00 7.4 0.305
MINIMUM 1. 4. 93.00 6.9
DATE OF MINIMUM 1985-10-09 1985-01-09 1985-01-09 1987-06-09
10TH PERCENTILE 2. 8. 101.80 7.0
MEDIAN 4. 18. 133.00 7.4
90TH PERCENTILE 10. 38. 170.80 7.8
MAXIMUM 14. 62. 216.00 8.0
DATE OF MAXIMUM 1987-05-18 1985-07-11 1985-08-14 1985-09-17
STANDARD DEVIATION 4. 14. 27.22 0.3
PO4 SULPHATE Cl COLIFORM FAEC COL
TOTAL DISS TOTAL
15403 16302 17201 36001 36011
mg/L PO4 mg/L SO4 mg/L Cl No/100ml No/100ml
NO. OF L-FLAGGED VALUES 0 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 5 5
NO. OF UNFLAGGED VALUES 2 18 32 4 13
MEAN 0.270 48. 30. 5.6E+04 3.9E+04
MINIMUM 11. 9. 1.1E+03 2.1E+02
DATE OF MINIMUM 1987-08-13 1985-09-17 1987-10-26 1987-07-09
10TH PERCENTILE 14. 14. 2.8E+02
MEDIAN 43. 26. 2.4E+03 7.6E+03
90TH PERCENTILE 77. 48. 1.1E+05
MAXIMUM 135. 79. 2.4E+05 2.4E+05
DATE OF MAXIMUM 1986-05-07 1986-05-07 1987-06-09 1987-01-12
STANDARD DEVIATION 30. 17. 1.0E+05 7.6E+04
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