Chemical classification of Crocodile (West) and Marico WMA 2006-12-18

Crocodile (West) and Marico WMA

Chemical classification run on 2006-12-18 - 15:42:06

Program /prjws8/users/michael/aml/qatrivhtml.aml
Data file $WMSYS/wmdata/wq/MACRO061128.dat
Data selection dates 2001-01-01 to 2005-12-31
Programmer Michael Silberbauer
Institute for Water Quality Studies,
Department of Water Affairs and Forestry, Private Bag X313,
PRETORIA, South Africa 0001 - SilberbauerM@dwaf.gov.za

Note that qatrivhtml.aml includes monitoring points outside drainage region boundaries, within 500 metres of the boundaries, to allow for geographic errors. Thus, in some cases, the program may use the same monitoring point to classify two adjacent drainage regions.
Minimum number of samples used per classification = 5.
[explanation of classification process] [map] [chemical index page] [IWQS home page]

68 quaternary drainage regions overlap Crocodile (West) and Marico WMA

(1) Catchment A10A: Total number of "H...Q" (flow gauging, quality) stations = 5.

Station total n
samples description map
code

A1H005Q01 eye Skilpad Eye at Moilwas at Stock-Yard none

A1H002Q01 dam Dinokana Lower Eye at Dinokana at Dam none

A1H001Q01 eye Dinokana Upper Eye at Dinokana at Pump none

A1H004Q01 eye Tweefontein Lower Eye at Tweefontein at none

A1H003Q01 eye Tweefontein Upper Eye at Tweefontein none

Station	total n samples	description	map code
A1H005Q01	eye	Skilpad Eye at Moilwas at Stock-Yard	none
A1H002Q01	dam	Dinokana Lower Eye at Dinokana at Dam	none
A1H001Q01	eye	Dinokana Upper Eye at Dinokana at Pump	none
A1H004Q01	eye	Tweefontein Lower Eye at Tweefontein at	none
A1H003Q01	eye	Tweefontein Upper Eye at Tweefontein	none

(4) Catchment A21A: Total number of "H...Q" (flow gauging, quality) stations = 3.

Station total n
samples description map
code

A2H009Q01 dam Hennops River at Rietvlei-Rietvlei Dam none

A2H090Q01 342 Hennops River at V Riebeeck Nat Res Up-S 1

A2H008Q01 eye Elandsfontein Eye at Elandsfontein none

Station	total n samples	description	map code
A2H009Q01	dam	Hennops River at Rietvlei-Rietvlei Dam	none
A2H090Q01	342	Hennops River at V Riebeeck Nat Res Up-S	1
A2H008Q01	eye	Elandsfontein Eye at Elandsfontein	none

A21A - Stations used: 1, Samples selected: 138 between 2001-01-01 and 2005-12-31.

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 138 6.71 A2H090Q01 7.93 A2H090Q01 8.17 A2H090Q01 8.55 A2H090Q01 -log [H⁺]

Fluoride 138 0.2 A2H090Q01 0.26 A2H090Q01 0.31 A2H090Q01 0.6 A2H090Q01 mg l^-1

NO3(N) 138 1.405 A2H090Q01 4.148 A2H090Q01 7.541 A2H090Q01 18.165 A2H090Q01 mg l^-1

Sulphate 138 18.3 A2H090Q01 45.3 A2H090Q01 68.7 A2H090Q01 130.7 A2H090Q01 mg l^-1

Chloride 138 25.1 A2H090Q01 58.2 A2H090Q01 81.4 A2H090Q01 101.9 A2H090Q01 mg l^-1

Sodium 138 17.3 A2H090Q01 48.2 A2H090Q01 65.4 A2H090Q01 75 A2H090Q01 mg l^-1

Magnesium 138 6.1 A2H090Q01 14.2 A2H090Q01 16.7 A2H090Q01 18.6 A2H090Q01 mg l^-1

TDS 138 207 A2H090Q01 395 A2H090Q01 448 A2H090Q01 494 A2H090Q01 mg l^-1

Conductivity 138 32.6 A2H090Q01 60 A2H090Q01 68.2 A2H090Q01 74.3 A2H090Q01 mS m^-1

Summary of classification (consituents in each range in brackets): A21A n=138 Class 1: I(NO3)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	138	6.71	A2H090Q01	7.93	A2H090Q01	8.17	A2H090Q01	8.55	A2H090Q01	-log [H⁺]
Fluoride	138	0.2	A2H090Q01	0.26	A2H090Q01	0.31	A2H090Q01	0.6	A2H090Q01	mg l^-1
NO3(N)	138	1.405	A2H090Q01	4.148	A2H090Q01	7.541	A2H090Q01	18.165	A2H090Q01	mg l^-1
Sulphate	138	18.3	A2H090Q01	45.3	A2H090Q01	68.7	A2H090Q01	130.7	A2H090Q01	mg l^-1
Chloride	138	25.1	A2H090Q01	58.2	A2H090Q01	81.4	A2H090Q01	101.9	A2H090Q01	mg l^-1
Sodium	138	17.3	A2H090Q01	48.2	A2H090Q01	65.4	A2H090Q01	75	A2H090Q01	mg l^-1
Magnesium	138	6.1	A2H090Q01	14.2	A2H090Q01	16.7	A2H090Q01	18.6	A2H090Q01	mg l^-1
TDS	138	207	A2H090Q01	395	A2H090Q01	448	A2H090Q01	494	A2H090Q01	mg l^-1
Conductivity	138	32.6	A2H090Q01	60	A2H090Q01	68.2	A2H090Q01	74.3	A2H090Q01	mS m^-1

(5) Catchment A21B: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

A2H014Q01 1462 Hennops River at Skurweberg 2

A2H009Q01 dam Hennops River at Rietvlei-Rietvlei Dam none

Station	total n samples	description	map code
A2H014Q01	1462	Hennops River at Skurweberg	2
A2H009Q01	dam	Hennops River at Rietvlei-Rietvlei Dam	none

A21B - Stations used: 1, Samples selected: 212 between 2001-01-01 and 2005-12-31.

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 212 7.2 A2H014Q01 8.15 A2H014Q01 8.33 A2H014Q01 9.18 A2H014Q01 -log [H⁺]

Fluoride 212 0.16 A2H014Q01 0.24 A2H014Q01 0.29 A2H014Q01 0.41 A2H014Q01 mg l^-1

NO3(N) 212 0.055 A2H014Q01 4.696 A2H014Q01 7.836 A2H014Q01 10.333 A2H014Q01 mg l^-1

Sulphate 212 30.4 A2H014Q01 53.6 A2H014Q01 87.3 A2H014Q01 136.5 A2H014Q01 mg l^-1

Chloride 212 14.8 A2H014Q01 62.3 A2H014Q01 101.4 A2H014Q01 306.3 A2H014Q01 mg l^-1

Sodium 212 12.7 A2H014Q01 54.7 A2H014Q01 75.9 A2H014Q01 171.1 A2H014Q01 mg l^-1

Magnesium 212 7.4 A2H014Q01 19.8 A2H014Q01 24.6 A2H014Q01 34.4 A2H014Q01 mg l^-1

TDS 212 190 A2H014Q01 475 A2H014Q01 520 A2H014Q01 805 A2H014Q01 mg l^-1

Conductivity 212 29.1 A2H014Q01 67.6 A2H014Q01 77.7 A2H014Q01 145 A2H014Q01 mS m^-1

Summary of classification (consituents in each range in brackets): A21B n=212 Class 1: I(NO3 Cl TDS EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	212	7.2	A2H014Q01	8.15	A2H014Q01	8.33	A2H014Q01	9.18	A2H014Q01	-log [H⁺]
Fluoride	212	0.16	A2H014Q01	0.24	A2H014Q01	0.29	A2H014Q01	0.41	A2H014Q01	mg l^-1
NO3(N)	212	0.055	A2H014Q01	4.696	A2H014Q01	7.836	A2H014Q01	10.333	A2H014Q01	mg l^-1
Sulphate	212	30.4	A2H014Q01	53.6	A2H014Q01	87.3	A2H014Q01	136.5	A2H014Q01	mg l^-1
Chloride	212	14.8	A2H014Q01	62.3	A2H014Q01	101.4	A2H014Q01	306.3	A2H014Q01	mg l^-1
Sodium	212	12.7	A2H014Q01	54.7	A2H014Q01	75.9	A2H014Q01	171.1	A2H014Q01	mg l^-1
Magnesium	212	7.4	A2H014Q01	19.8	A2H014Q01	24.6	A2H014Q01	34.4	A2H014Q01	mg l^-1
TDS	212	190	A2H014Q01	475	A2H014Q01	520	A2H014Q01	805	A2H014Q01	mg l^-1
Conductivity	212	29.1	A2H014Q01	67.6	A2H014Q01	77.7	A2H014Q01	145	A2H014Q01	mS m^-1

(6) Catchment A21C: Total number of "H...Q" (flow gauging, quality) stations = 9.

Station total n
samples description map
code

A2H044Q01 1305 Jukskei River at Vlakfontein 3

A2H044Q02 0 Vlakfontein none

A2H023Q02 0 Jukskei Riv at Nietgedacht -Biological none

A2H023Q01 1284 Dwj26 Jukskei River at Nietgedacht 4

A2H043Q01 2 Riverside Spruit at Diepsloot 5

A2H042Q01 915 Jukskei River at Lone Hill 6

A2H040Q02 0 Waterval none

A2H040Q01 854 Dwj37 at Waterval D-S R101 on Jukskei 7

A2H047Q01 493 Little Jukskei River at Klipfontein-Rand 8

Station	total n samples	description	map code
A2H044Q01	1305	Jukskei River at Vlakfontein	3
A2H044Q02	0	Vlakfontein	none
A2H023Q02	0	Jukskei Riv at Nietgedacht -Biological	none
A2H023Q01	1284	Dwj26 Jukskei River at Nietgedacht	4
A2H043Q01	2	Riverside Spruit at Diepsloot	5
A2H042Q01	915	Jukskei River at Lone Hill	6
A2H040Q02	0	Waterval	none
A2H040Q01	854	Dwj37 at Waterval D-S R101 on Jukskei	7
A2H047Q01	493	Little Jukskei River at Klipfontein-Rand	8

A21C - Stations used: 9, Samples selected: 349 between 2001-01-01 and 2005-12-31.

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 349 6.73 A2H047Q01 8.01 A2H044Q01 8.22 A2H044Q01 8.74 A2H047Q01 -log [H⁺]

Fluoride 349 0.12 A2H023Q01 0.29 A2H023Q01 0.34 A2H023Q01 0.47 A2H044Q01 mg l^-1

NO3(N) 349 0.04 A2H044Q01 4.751 A2H044Q01 7.269 A2H044Q01 19.466 A2H044Q01 mg l^-1

Sulphate 349 11.9 A2H047Q01 49.2 A2H023Q01 59.8 A2H023Q01 90.5 A2H023Q01 mg l^-1

Chloride 349 5 A2H047Q01 50.9 A2H044Q01 60.8 A2H044Q01 71.8 A2H044Q01 mg l^-1

Sodium 349 6.1 A2H047Q01 44.5 A2H044Q01 56.5 A2H044Q01 66 A2H023Q01 mg l^-1

Magnesium 349 4.5 A2H047Q01 11.4 A2H044Q01 14.7 A2H047Q01 29.6 A2H023Q01 mg l^-1

TDS 349 113 A2H047Q01 356 A2H044Q01 399 A2H023Q01 469 A2H044Q01 mg l^-1

Conductivity 349 15.8 A2H047Q01 54 A2H023Q01 59.5 A2H044Q01 64.3 A2H023Q01 mS m^-1

Summary of classification (consituents in each range in brackets): A21C n=349 Class 1: I(NO3)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	349	6.73	A2H047Q01	8.01	A2H044Q01	8.22	A2H044Q01	8.74	A2H047Q01	-log [H⁺]
Fluoride	349	0.12	A2H023Q01	0.29	A2H023Q01	0.34	A2H023Q01	0.47	A2H044Q01	mg l^-1
NO3(N)	349	0.04	A2H044Q01	4.751	A2H044Q01	7.269	A2H044Q01	19.466	A2H044Q01	mg l^-1
Sulphate	349	11.9	A2H047Q01	49.2	A2H023Q01	59.8	A2H023Q01	90.5	A2H023Q01	mg l^-1
Chloride	349	5	A2H047Q01	50.9	A2H044Q01	60.8	A2H044Q01	71.8	A2H044Q01	mg l^-1
Sodium	349	6.1	A2H047Q01	44.5	A2H044Q01	56.5	A2H044Q01	66	A2H023Q01	mg l^-1
Magnesium	349	4.5	A2H047Q01	11.4	A2H044Q01	14.7	A2H047Q01	29.6	A2H023Q01	mg l^-1
TDS	349	113	A2H047Q01	356	A2H044Q01	399	A2H023Q01	469	A2H044Q01	mg l^-1
Conductivity	349	15.8	A2H047Q01	54	A2H023Q01	59.5	A2H044Q01	64.3	A2H023Q01	mS m^-1

(7) Catchment A21D: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

A2H049Q01 921 Bloubank Riet Spruit at Zwartkop 9

C2H236Q01 coord
error Drainage region error for Manganese Metal Property:
Secondary=A2 but station=C2 !

C2H236Q01 coord
error Manganese Metal Property none

Station	total n samples	description	map code
A2H049Q01	921	Bloubank Riet Spruit at Zwartkop	9
C2H236Q01	coord error	Drainage region error for Manganese Metal Property: Secondary=A2 but station=C2	!
C2H236Q01	coord error	Manganese Metal Property	none

A21D - Stations used: 1, Samples selected: 141 between 2001-01-01 and 2005-12-31.

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 141 7.26 A2H049Q01 8.19 A2H049Q01 8.34 A2H049Q01 8.64 A2H049Q01 -log [H⁺]

Fluoride 141 0.05 A2H049Q01 0.13 A2H049Q01 0.17 A2H049Q01 0.57 A2H049Q01 mg l^-1

NO3(N) 141 0.447 A2H049Q01 4.326 A2H049Q01 5.503 A2H049Q01 19.455 A2H049Q01 mg l^-1

Sulphate 141 47.5 A2H049Q01 76.5 A2H049Q01 94.8 A2H049Q01 109.2 A2H049Q01 mg l^-1

Chloride 141 21.7 A2H049Q01 32.8 A2H049Q01 37.7 A2H049Q01 42.4 A2H049Q01 mg l^-1

Sodium 141 14.4 A2H049Q01 24.3 A2H049Q01 29.5 A2H049Q01 34 A2H049Q01 mg l^-1

Magnesium 141 18.5 A2H049Q01 30.5 A2H049Q01 33.2 A2H049Q01 40.2 A2H049Q01 mg l^-1

TDS 141 292 A2H049Q01 438 A2H049Q01 466 A2H049Q01 510 A2H049Q01 mg l^-1

Conductivity 141 42.9 A2H049Q01 61 A2H049Q01 65.9 A2H049Q01 74.6 A2H049Q01 mS m^-1

Summary of classification (consituents in each range in brackets): A21D n=141 Class 1: I(Mg TDS)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	141	7.26	A2H049Q01	8.19	A2H049Q01	8.34	A2H049Q01	8.64	A2H049Q01	-log [H⁺]
Fluoride	141	0.05	A2H049Q01	0.13	A2H049Q01	0.17	A2H049Q01	0.57	A2H049Q01	mg l^-1
NO3(N)	141	0.447	A2H049Q01	4.326	A2H049Q01	5.503	A2H049Q01	19.455	A2H049Q01	mg l^-1
Sulphate	141	47.5	A2H049Q01	76.5	A2H049Q01	94.8	A2H049Q01	109.2	A2H049Q01	mg l^-1
Chloride	141	21.7	A2H049Q01	32.8	A2H049Q01	37.7	A2H049Q01	42.4	A2H049Q01	mg l^-1
Sodium	141	14.4	A2H049Q01	24.3	A2H049Q01	29.5	A2H049Q01	34	A2H049Q01	mg l^-1
Magnesium	141	18.5	A2H049Q01	30.5	A2H049Q01	33.2	A2H049Q01	40.2	A2H049Q01	mg l^-1
TDS	141	292	A2H049Q01	438	A2H049Q01	466	A2H049Q01	510	A2H049Q01	mg l^-1
Conductivity	141	42.9	A2H049Q01	61	A2H049Q01	65.9	A2H049Q01	74.6	A2H049Q01	mS m^-1

(8) Catchment A21E: Total number of "H...Q" (flow gauging, quality) stations = 4.

Station total n
samples description map
code

A2H045Q01 1309 Dwj31 Crocodile River U-S at Vlakfontei 10

A2H049Q01 921 Bloubank Riet Spruit at Zwartkop 11

A2H050Q01 926 Crocodile River at Zwartkop-Hoi-Hoi 12

A2H051Q01 816 Crocodile River at Van Wyks Restant 13

Station	total n samples	description	map code
A2H045Q01	1309	Dwj31 Crocodile River U-S at Vlakfontei	10
A2H049Q01	921	Bloubank Riet Spruit at Zwartkop	11
A2H050Q01	926	Crocodile River at Zwartkop-Hoi-Hoi	12
A2H051Q01	816	Crocodile River at Van Wyks Restant	13

A21E - Stations used: 4, Samples selected: 565 between 2001-01-01 and 2005-12-31.

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 565 6.9 A2H050Q01 8.07 A2H051Q01 8.3 A2H049Q01 8.98 A2H051Q01 -log [H⁺]

Fluoride 565 0.05 A2H051Q01 0.17 A2H045Q01 0.22 A2H050Q01 0.57 A2H049Q01 mg l^-1

NO3(N) 565 0.02 A2H051Q01 3.049 A2H050Q01 4.903 A2H049Q01 19.455 A2H049Q01 mg l^-1

Sulphate 565 2 A2H051Q01 39.9 A2H050Q01 78.5 A2H049Q01 109.2 A2H049Q01 mg l^-1

Chloride 565 5 A2H051Q01 33.1 A2H049Q01 49.3 A2H045Q01 101.6 A2H050Q01 mg l^-1

Sodium 565 3.6 A2H051Q01 24.5 A2H050Q01 38.3 A2H045Q01 75.5 A2H050Q01 mg l^-1

Magnesium 565 4.4 A2H050Q01 16.9 A2H050Q01 31.2 A2H049Q01 40.2 A2H049Q01 mg l^-1

TDS 565 94 A2H051Q01 326 A2H050Q01 447 A2H045Q01 510 A2H049Q01 mg l^-1

Conductivity 565 13.2 A2H051Q01 49.3 A2H049Q01 62.5 A2H049Q01 74.6 A2H049Q01 mS m^-1

Summary of classification (consituents in each range in brackets): A21E n=565 Class 1: I(Mg)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	565	6.9	A2H050Q01	8.07	A2H051Q01	8.3	A2H049Q01	8.98	A2H051Q01	-log [H⁺]
Fluoride	565	0.05	A2H051Q01	0.17	A2H045Q01	0.22	A2H050Q01	0.57	A2H049Q01	mg l^-1
NO3(N)	565	0.02	A2H051Q01	3.049	A2H050Q01	4.903	A2H049Q01	19.455	A2H049Q01	mg l^-1
Sulphate	565	2	A2H051Q01	39.9	A2H050Q01	78.5	A2H049Q01	109.2	A2H049Q01	mg l^-1
Chloride	565	5	A2H051Q01	33.1	A2H049Q01	49.3	A2H045Q01	101.6	A2H050Q01	mg l^-1
Sodium	565	3.6	A2H051Q01	24.5	A2H050Q01	38.3	A2H045Q01	75.5	A2H050Q01	mg l^-1
Magnesium	565	4.4	A2H050Q01	16.9	A2H050Q01	31.2	A2H049Q01	40.2	A2H049Q01	mg l^-1
TDS	565	94	A2H051Q01	326	A2H050Q01	447	A2H045Q01	510	A2H049Q01	mg l^-1
Conductivity	565	13.2	A2H051Q01	49.3	A2H049Q01	62.5	A2H049Q01	74.6	A2H049Q01	mS m^-1

(9) Catchment A21F: Total number of "H...Q" (flow gauging, quality) stations = 4.

Station total n
samples description map
code

A2H013Q01 1466 Magalies River at Scheerpoort 14

A2H034Q01 1456 Skeerpoort River at Scheerpoort 15

A2H010Q01 eye Maloneys Eye at Steenekoppie none

A2H024Q01 312 Brandvlei River at Brandvlei 16

Station	total n samples	description	map code
A2H013Q01	1466	Magalies River at Scheerpoort	14
A2H034Q01	1456	Skeerpoort River at Scheerpoort	15
A2H010Q01	eye	Maloneys Eye at Steenekoppie	none
A2H024Q01	312	Brandvlei River at Brandvlei	16

A21F - Stations used: 3, Samples selected: 371 between 2001-01-01 and 2005-12-31.

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 371 6.63 A2H024Q01 8.22 A2H034Q01 8.38 A2H013Q01 8.7 A2H034Q01 -log [H⁺]

Fluoride 371 0.05 A2H024Q01 0.15 A2H034Q01 0.21 A2H013Q01 0.37 A2H013Q01 mg l^-1

NO3(N) 371 0.02 A2H024Q01 0.743 A2H013Q01 1.22 A2H013Q01 1.888 A2H013Q01 mg l^-1

Sulphate 371 2 A2H024Q01 9.6 A2H034Q01 16.4 A2H013Q01 29.3 A2H013Q01 mg l^-1

Chloride 371 2 A2H024Q01 5 A2H013Q01 10 A2H013Q01 36.4 A2H013Q01 mg l^-1

Sodium 371 1 A2H034Q01 5.1 A2H013Q01 8.9 A2H013Q01 30.5 A2H013Q01 mg l^-1

Magnesium 371 0.5 A2H024Q01 23.3 A2H013Q01 27.9 A2H013Q01 33 A2H013Q01 mg l^-1

TDS 371 13 A2H024Q01 294 A2H013Q01 345 A2H013Q01 392 A2H013Q01 mg l^-1

Conductivity 371 1 A2H024Q01 37.2 A2H013Q01 43.8 A2H013Q01 50.7 A2H013Q01 mS m^-1

Summary of classification: A21F n=371 Class 0

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	371	6.63	A2H024Q01	8.22	A2H034Q01	8.38	A2H013Q01	8.7	A2H034Q01	-log [H⁺]
Fluoride	371	0.05	A2H024Q01	0.15	A2H034Q01	0.21	A2H013Q01	0.37	A2H013Q01	mg l^-1
NO3(N)	371	0.02	A2H024Q01	0.743	A2H013Q01	1.22	A2H013Q01	1.888	A2H013Q01	mg l^-1
Sulphate	371	2	A2H024Q01	9.6	A2H034Q01	16.4	A2H013Q01	29.3	A2H013Q01	mg l^-1
Chloride	371	2	A2H024Q01	5	A2H013Q01	10	A2H013Q01	36.4	A2H013Q01	mg l^-1
Sodium	371	1	A2H034Q01	5.1	A2H013Q01	8.9	A2H013Q01	30.5	A2H013Q01	mg l^-1
Magnesium	371	0.5	A2H024Q01	23.3	A2H013Q01	27.9	A2H013Q01	33	A2H013Q01	mg l^-1
TDS	371	13	A2H024Q01	294	A2H013Q01	345	A2H013Q01	392	A2H013Q01	mg l^-1
Conductivity	371	1	A2H024Q01	37.2	A2H013Q01	43.8	A2H013Q01	50.7	A2H013Q01	mS m^-1

(10) Catchment A21G: Total number of "H...Q" (flow gauging, quality) stations = 3.

Station total n
samples description map
code

A2H034Q01 1456 Skeerpoort River at Scheerpoort 17

A2H035Q01 53 Skeerpoort River at Hartbeeshoek 18

A2H033Q01 eye Nouklip Eye at Hartbeeshoek none

Station	total n samples	description	map code
A2H034Q01	1456	Skeerpoort River at Scheerpoort	17
A2H035Q01	53	Skeerpoort River at Hartbeeshoek	18
A2H033Q01	eye	Nouklip Eye at Hartbeeshoek	none

A21G - Stations used: 2, Samples selected: 140 between 2001-01-01 and 2005-12-31.

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 140 7.79 A2H034Q01 8.22 A2H034Q01 8.36 A2H034Q01 8.7 A2H034Q01 -log [H⁺]

Fluoride 140 0.05 A2H034Q01 0.12 A2H034Q01 0.16 A2H034Q01 0.27 A2H034Q01 mg l^-1

NO3(N) 140 0.02 A2H034Q01 0.509 A2H034Q01 0.693 A2H034Q01 0.91 A2H034Q01 mg l^-1

Sulphate 140 2 A2H034Q01 5.6 A2H034Q01 9.4 A2H034Q01 16.7 A2H034Q01 mg l^-1

Chloride 140 2 A2H034Q01 5 A2H034Q01 5 A2H034Q01 6 A2H034Q01 mg l^-1

Sodium 140 1 A2H034Q01 2.8 A2H034Q01 3.4 A2H034Q01 5 A2H034Q01 mg l^-1

Magnesium 140 13.4 A2H034Q01 20.9 A2H034Q01 22.5 A2H034Q01 28.3 A2H034Q01 mg l^-1

TDS 140 194 A2H034Q01 269 A2H034Q01 280 A2H034Q01 289 A2H034Q01 mg l^-1

Conductivity 140 26.9 A2H034Q01 33 A2H034Q01 34.1 A2H034Q01 36.5 A2H034Q01 mS m^-1

Summary of classification: A21G n=140 Class 0

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	140	7.79	A2H034Q01	8.22	A2H034Q01	8.36	A2H034Q01	8.7	A2H034Q01	-log [H⁺]
Fluoride	140	0.05	A2H034Q01	0.12	A2H034Q01	0.16	A2H034Q01	0.27	A2H034Q01	mg l^-1
NO3(N)	140	0.02	A2H034Q01	0.509	A2H034Q01	0.693	A2H034Q01	0.91	A2H034Q01	mg l^-1
Sulphate	140	2	A2H034Q01	5.6	A2H034Q01	9.4	A2H034Q01	16.7	A2H034Q01	mg l^-1
Chloride	140	2	A2H034Q01	5	A2H034Q01	5	A2H034Q01	6	A2H034Q01	mg l^-1
Sodium	140	1	A2H034Q01	2.8	A2H034Q01	3.4	A2H034Q01	5	A2H034Q01	mg l^-1
Magnesium	140	13.4	A2H034Q01	20.9	A2H034Q01	22.5	A2H034Q01	28.3	A2H034Q01	mg l^-1
TDS	140	194	A2H034Q01	269	A2H034Q01	280	A2H034Q01	289	A2H034Q01	mg l^-1
Conductivity	140	26.9	A2H034Q01	33	A2H034Q01	34.1	A2H034Q01	36.5	A2H034Q01	mS m^-1

(11) Catchment A21H: Total number of "H...Q" (flow gauging, quality) stations = 10.

Station total n
samples description map
code

A2H081Q01 dam Hartbeespoort Dam on Crocodile River: Le none

A2H082Q01 dam Hartbeespoort Dam on Crocodile River: Ri none

A2H083Q01 dam Hartbeespoort Dam on Crocodile Riv: Down none

A2H058Q01 323 Swart Spruit at Rietfontein-Syferfontein 19

A2H013Q01 1466 Magalies River at Scheerpoort 20

A2H014Q01 1462 Hennops River at Skurweberg 21

A2H012Q01 3159 at Kalkheuwel on Krokodilrivier 22

A2H045Q01 1309 Dwj31 Crocodile River U-S at Vlakfontei 23

A2H044Q01 1305 Jukskei River at Vlakfontein 24

A2H044Q02 0 Vlakfontein none

Station	total n samples	description	map code
A2H081Q01	dam	Hartbeespoort Dam on Crocodile River: Le	none
A2H082Q01	dam	Hartbeespoort Dam on Crocodile River: Ri	none
A2H083Q01	dam	Hartbeespoort Dam on Crocodile Riv: Down	none
A2H058Q01	323	Swart Spruit at Rietfontein-Syferfontein	19
A2H013Q01	1466	Magalies River at Scheerpoort	20
A2H014Q01	1462	Hennops River at Skurweberg	21
A2H012Q01	3159	at Kalkheuwel on Krokodilrivier	22
A2H045Q01	1309	Dwj31 Crocodile River U-S at Vlakfontei	23
A2H044Q01	1305	Jukskei River at Vlakfontein	24
A2H044Q02	0	Vlakfontein	none

A21H - Stations used: 7, Samples selected: 983 between 2001-01-01 and 2005-12-31.

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 983 5.77 A2H012Q01 8.14 A2H014Q01 8.35 A2H013Q01 9.18 A2H014Q01 -log [H⁺]

Fluoride 983 0.1 A2H013Q01 0.24 A2H014Q01 0.33 A2H012Q01 1.11 A2H012Q01 mg l^-1

NO3(N) 983 0.02 A2H013Q01 3.854 A2H045Q01 6.213 A2H044Q01 19.466 A2H044Q01 mg l^-1

Sulphate 983 3 A2H013Q01 50.9 A2H044Q01 67.4 A2H012Q01 136.5 A2H014Q01 mg l^-1

Chloride 983 5 A2H013Q01 48.9 A2H012Q01 77.9 A2H014Q01 306.3 A2H014Q01 mg l^-1

Sodium 983 3.3 A2H013Q01 42.3 A2H012Q01 64.9 A2H014Q01 171.1 A2H014Q01 mg l^-1

Magnesium 983 5.2 A2H044Q01 20.3 A2H058Q01 27.5 A2H013Q01 42.6 A2H058Q01 mg l^-1

TDS 983 190 A2H013Q01 393 A2H045Q01 500 A2H014Q01 813 A2H058Q01 mg l^-1

Conductivity 983 26.4 A2H013Q01 58 A2H044Q01 72.5 A2H014Q01 145 A2H014Q01 mS m^-1

Summary of classification (consituents in each range in brackets): A21H n=983 Class 1: I(NO3 TDS EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	983	5.77	A2H012Q01	8.14	A2H014Q01	8.35	A2H013Q01	9.18	A2H014Q01	-log [H⁺]
Fluoride	983	0.1	A2H013Q01	0.24	A2H014Q01	0.33	A2H012Q01	1.11	A2H012Q01	mg l^-1
NO3(N)	983	0.02	A2H013Q01	3.854	A2H045Q01	6.213	A2H044Q01	19.466	A2H044Q01	mg l^-1
Sulphate	983	3	A2H013Q01	50.9	A2H044Q01	67.4	A2H012Q01	136.5	A2H014Q01	mg l^-1
Chloride	983	5	A2H013Q01	48.9	A2H012Q01	77.9	A2H014Q01	306.3	A2H014Q01	mg l^-1
Sodium	983	3.3	A2H013Q01	42.3	A2H012Q01	64.9	A2H014Q01	171.1	A2H014Q01	mg l^-1
Magnesium	983	5.2	A2H044Q01	20.3	A2H058Q01	27.5	A2H013Q01	42.6	A2H058Q01	mg l^-1
TDS	983	190	A2H013Q01	393	A2H045Q01	500	A2H014Q01	813	A2H058Q01	mg l^-1
Conductivity	983	26.4	A2H013Q01	58	A2H044Q01	72.5	A2H014Q01	145	A2H014Q01	mS m^-1

(12) Catchment A21J: Total number of "H...Q" (flow gauging, quality) stations = 8.

Station total n
samples description map
code

A2H069Q01 dam Hartbeespoort Dam Right Canal at Kleinfo none

A2H068Q01 dam Hartbeespoort Dam Right Canal at Mamagal none

A2H048Q01 1446 Crocodile River at Crocodile Poort-Thaba 25

A2H052Q01 674 Crocodile River at Crocodile Drift-Brits 26

A2H067Q01 dam Hartbeespoort Dam Right Canal @ Hartbees none

A2H081Q01 dam Hartbeespoort Dam on Crocodile River: Le none

A2H082Q01 dam Hartbeespoort Dam on Crocodile River: Ri none

A2H083Q01 dam Hartbeespoort Dam on Crocodile Riv: Down none

Station	total n samples	description	map code
A2H069Q01	dam	Hartbeespoort Dam Right Canal at Kleinfo	none
A2H068Q01	dam	Hartbeespoort Dam Right Canal at Mamagal	none
A2H048Q01	1446	Crocodile River at Crocodile Poort-Thaba	25
A2H052Q01	674	Crocodile River at Crocodile Drift-Brits	26
A2H067Q01	dam	Hartbeespoort Dam Right Canal @ Hartbees	none
A2H081Q01	dam	Hartbeespoort Dam on Crocodile River: Le	none
A2H082Q01	dam	Hartbeespoort Dam on Crocodile River: Ri	none
A2H083Q01	dam	Hartbeespoort Dam on Crocodile Riv: Down	none

A21J - Stations used: 2, Samples selected: 211 between 2001-01-01 and 2005-12-31.

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 211 7.13 A2H048Q01 8.28 A2H048Q01 8.63 A2H048Q01 8.93 A2H048Q01 -log [H⁺]

Fluoride 211 0.1 A2H048Q01 0.29 A2H048Q01 0.34 A2H048Q01 0.46 A2H048Q01 mg l^-1

NO3(N) 211 0.02 A2H048Q01 1.647 A2H048Q01 2.558 A2H048Q01 12.259 A2H048Q01 mg l^-1

Sulphate 211 22.1 A2H048Q01 105 A2H048Q01 135.2 A2H048Q01 172.2 A2H048Q01 mg l^-1

Chloride 211 19.1 A2H048Q01 88.7 A2H048Q01 112.7 A2H048Q01 142.7 A2H048Q01 mg l^-1

Sodium 211 12.3 A2H048Q01 63.9 A2H048Q01 84.4 A2H048Q01 110.1 A2H048Q01 mg l^-1

Magnesium 211 8.6 A2H048Q01 38.5 A2H048Q01 49.9 A2H048Q01 56 A2H048Q01 mg l^-1

TDS 211 173 A2H048Q01 623 A2H048Q01 744 A2H048Q01 844 A2H048Q01 mg l^-1

Conductivity 211 27.5 A2H048Q01 86.8 A2H048Q01 102.5 A2H048Q01 117.1 A2H048Q01 mS m^-1

Summary of classification (consituents in each range in brackets): A21J n=211 Class 1: I(Cl Mg TDS EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	211	7.13	A2H048Q01	8.28	A2H048Q01	8.63	A2H048Q01	8.93	A2H048Q01	-log [H⁺]
Fluoride	211	0.1	A2H048Q01	0.29	A2H048Q01	0.34	A2H048Q01	0.46	A2H048Q01	mg l^-1
NO3(N)	211	0.02	A2H048Q01	1.647	A2H048Q01	2.558	A2H048Q01	12.259	A2H048Q01	mg l^-1
Sulphate	211	22.1	A2H048Q01	105	A2H048Q01	135.2	A2H048Q01	172.2	A2H048Q01	mg l^-1
Chloride	211	19.1	A2H048Q01	88.7	A2H048Q01	112.7	A2H048Q01	142.7	A2H048Q01	mg l^-1
Sodium	211	12.3	A2H048Q01	63.9	A2H048Q01	84.4	A2H048Q01	110.1	A2H048Q01	mg l^-1
Magnesium	211	8.6	A2H048Q01	38.5	A2H048Q01	49.9	A2H048Q01	56	A2H048Q01	mg l^-1
TDS	211	173	A2H048Q01	623	A2H048Q01	744	A2H048Q01	844	A2H048Q01	mg l^-1
Conductivity	211	27.5	A2H048Q01	86.8	A2H048Q01	102.5	A2H048Q01	117.1	A2H048Q01	mS m^-1

(13) Catchment A21K: Total number of "H...Q" (flow gauging, quality) stations = 5.

Station total n
samples description map
code

A2H114Q01 dam Roodekopjes Dam on Crocodile River: Righ none

A2H019Q01 dam Roodekopjes Dam on Crocodile River: Down none

A2H113Q01 dam Roodekopjes Dam on Crocodile River: Left none

A2H092Q01 dam Buffelspoort Dam on Sterkstroom River: L none

A2H053Q01 277 Sterkstroom at Grootfontein 27

Station	total n samples	description	map code
A2H114Q01	dam	Roodekopjes Dam on Crocodile River: Righ	none
A2H019Q01	dam	Roodekopjes Dam on Crocodile River: Down	none
A2H113Q01	dam	Roodekopjes Dam on Crocodile River: Left	none
A2H092Q01	dam	Buffelspoort Dam on Sterkstroom River: L	none
A2H053Q01	277	Sterkstroom at Grootfontein	27

A21K - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(14) Catchment A21L: Total number of "H...Q" (flow gauging, quality) stations = 3.

Station total n
samples description map
code

A2H114Q01 dam Roodekopjes Dam on Crocodile River: Righ none

A2H019Q01 dam Roodekopjes Dam on Crocodile River: Down none

A2H113Q01 dam Roodekopjes Dam on Crocodile River: Left none

Station	total n samples	description	map code
A2H114Q01	dam	Roodekopjes Dam on Crocodile River: Righ	none
A2H019Q01	dam	Roodekopjes Dam on Crocodile River: Down	none
A2H113Q01	dam	Roodekopjes Dam on Crocodile River: Left	none

A21L - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(15) Catchment A22A: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

A2H096Q01 dam Lindleys Poort Dam on Elands River: Rig none

A2H107Q01 dam Swartruggens Dam on Elands River: Down S none

Station	total n samples	description	map code
A2H096Q01	dam	Lindleys Poort Dam on Elands River: Rig	none
A2H107Q01	dam	Swartruggens Dam on Elands River: Down S	none

A22A - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(16) Catchment A22B: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

A2H104Q01 dam Koster River Dam on Koster River: Down S none

A2H036Q01 827 Koster River at Steenbokfontein 28

Station	total n samples	description	map code
A2H104Q01	dam	Koster River Dam on Koster River: Down S	none
A2H036Q01	827	Koster River at Steenbokfontein	28

A22B - Stations used: 1, Samples selected: 117 between 2001-01-01 and 2005-12-31.

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 117 7.1 A2H036Q01 7.86 A2H036Q01 8.12 A2H036Q01 8.33 A2H036Q01 -log [H⁺]

Fluoride 117 0.05 A2H036Q01 0.12 A2H036Q01 0.16 A2H036Q01 0.24 A2H036Q01 mg l^-1

NO3(N) 117 0.02 A2H036Q01 0.055 A2H036Q01 0.124 A2H036Q01 0.199 A2H036Q01 mg l^-1

Sulphate 117 2 A2H036Q01 5.8 A2H036Q01 10.5 A2H036Q01 14.9 A2H036Q01 mg l^-1

Chloride 117 2.5 A2H036Q01 5 A2H036Q01 7.8 A2H036Q01 10.2 A2H036Q01 mg l^-1

Sodium 117 3 A2H036Q01 4.9 A2H036Q01 6.4 A2H036Q01 8.9 A2H036Q01 mg l^-1

Magnesium 117 2.8 A2H036Q01 5.7 A2H036Q01 8.7 A2H036Q01 10.8 A2H036Q01 mg l^-1

TDS 117 47 A2H036Q01 93 A2H036Q01 131 A2H036Q01 164 A2H036Q01 mg l^-1

Conductivity 117 7.9 A2H036Q01 12.4 A2H036Q01 17.8 A2H036Q01 23.6 A2H036Q01 mS m^-1

Summary of classification: A22B n=117 Class 0

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	117	7.1	A2H036Q01	7.86	A2H036Q01	8.12	A2H036Q01	8.33	A2H036Q01	-log [H⁺]
Fluoride	117	0.05	A2H036Q01	0.12	A2H036Q01	0.16	A2H036Q01	0.24	A2H036Q01	mg l^-1
NO3(N)	117	0.02	A2H036Q01	0.055	A2H036Q01	0.124	A2H036Q01	0.199	A2H036Q01	mg l^-1
Sulphate	117	2	A2H036Q01	5.8	A2H036Q01	10.5	A2H036Q01	14.9	A2H036Q01	mg l^-1
Chloride	117	2.5	A2H036Q01	5	A2H036Q01	7.8	A2H036Q01	10.2	A2H036Q01	mg l^-1
Sodium	117	3	A2H036Q01	4.9	A2H036Q01	6.4	A2H036Q01	8.9	A2H036Q01	mg l^-1
Magnesium	117	2.8	A2H036Q01	5.7	A2H036Q01	8.7	A2H036Q01	10.8	A2H036Q01	mg l^-1
TDS	117	47	A2H036Q01	93	A2H036Q01	131	A2H036Q01	164	A2H036Q01	mg l^-1
Conductivity	117	7.9	A2H036Q01	12.4	A2H036Q01	17.8	A2H036Q01	23.6	A2H036Q01	mS m^-1

(17) Catchment A22C: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

A2H032Q01 128 Selons River at Moedwil 29

Station	total n samples	description	map code
A2H032Q01	128	Selons River at Moedwil	29

A22C - not classified: 1 samples between 2001-01-01 and 2005-12-31, 1 valid samples. Require at least 5.

(18) Catchment A22D: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

A2H032Q01 128 Selons River at Moedwil 30

A2H104Q01 dam Koster River Dam on Koster River: Down S none

Station	total n samples	description	map code
A2H032Q01	128	Selons River at Moedwil	30
A2H104Q01	dam	Koster River Dam on Koster River: Down S	none

A22D - not classified: 1 samples between 2001-01-01 and 2005-12-31, 1 valid samples. Require at least 5.

(19) Catchment A22E: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

A2H096Q01 dam Lindleys Poort Dam on Elands River: Rig none

Station	total n samples	description	map code
A2H096Q01	dam	Lindleys Poort Dam on Elands River: Rig	none

A22E - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(21) Catchment A22G: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

A2H088Q01 dam Olifantsnek Dam on Hex River: Left Canal none

Station	total n samples	description	map code
A2H088Q01	dam	Olifantsnek Dam on Hex River: Left Canal	none

A22G - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(22) Catchment A22H: Total number of "H...Q" (flow gauging, quality) stations = 4.

Station total n
samples description map
code

A2H094Q01 dam Bospoort Dam on Hex River: Down Stream W none

A2H039Q01 35 Upper Waterkloof at Rietvallei 31

A2H038Q01 167 Lower Waterkloof at Rietvallei 32

A2H088Q01 dam Olifantsnek Dam on Hex River: Left Canal none

Station	total n samples	description	map code
A2H094Q01	dam	Bospoort Dam on Hex River: Down Stream W	none
A2H039Q01	35	Upper Waterkloof at Rietvallei	31
A2H038Q01	167	Lower Waterkloof at Rietvallei	32
A2H088Q01	dam	Olifantsnek Dam on Hex River: Left Canal	none

A22H - Stations used: 2, Samples selected: 71 between 2001-01-01 and 2005-12-31.

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 71 5.86 A2H038Q01 7.02 A2H038Q01 7.47 A2H038Q01 7.71 A2H038Q01 -log [H⁺]

Fluoride 71 0.05 A2H038Q01 0.05 A2H038Q01 0.12 A2H038Q01 0.15 A2H038Q01 mg l^-1

NO3(N) 71 0.02 A2H038Q01 0.05 A2H038Q01 0.08 A2H038Q01 0.136 A2H038Q01 mg l^-1

Sulphate 71 2 A2H038Q01 4.5 A2H038Q01 7.5 A2H038Q01 10.7 A2H038Q01 mg l^-1

Chloride 71 2 A2H038Q01 5 A2H038Q01 5 A2H038Q01 7.2 A2H038Q01 mg l^-1

Sodium 71 1 A2H038Q01 1 A2H038Q01 2.4 A2H038Q01 5 A2H038Q01 mg l^-1

Magnesium 71 0.5 A2H038Q01 1.3 A2H038Q01 2.4 A2H038Q01 3.1 A2H038Q01 mg l^-1

TDS 71 14 A2H038Q01 25 A2H038Q01 36 A2H038Q01 45 A2H038Q01 mg l^-1

Conductivity 71 1.9 A2H038Q01 3.1 A2H038Q01 4.6 A2H038Q01 5.7 A2H038Q01 mS m^-1

Summary of classification: A22H n=71 Class 0

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	71	5.86	A2H038Q01	7.02	A2H038Q01	7.47	A2H038Q01	7.71	A2H038Q01	-log [H⁺]
Fluoride	71	0.05	A2H038Q01	0.05	A2H038Q01	0.12	A2H038Q01	0.15	A2H038Q01	mg l^-1
NO3(N)	71	0.02	A2H038Q01	0.05	A2H038Q01	0.08	A2H038Q01	0.136	A2H038Q01	mg l^-1
Sulphate	71	2	A2H038Q01	4.5	A2H038Q01	7.5	A2H038Q01	10.7	A2H038Q01	mg l^-1
Chloride	71	2	A2H038Q01	5	A2H038Q01	5	A2H038Q01	7.2	A2H038Q01	mg l^-1
Sodium	71	1	A2H038Q01	1	A2H038Q01	2.4	A2H038Q01	5	A2H038Q01	mg l^-1
Magnesium	71	0.5	A2H038Q01	1.3	A2H038Q01	2.4	A2H038Q01	3.1	A2H038Q01	mg l^-1
TDS	71	14	A2H038Q01	25	A2H038Q01	36	A2H038Q01	45	A2H038Q01	mg l^-1
Conductivity	71	1.9	A2H038Q01	3.1	A2H038Q01	4.6	A2H038Q01	5.7	A2H038Q01	mS m^-1

(23) Catchment A22J: Total number of "H...Q" (flow gauging, quality) stations = 3.

Station total n
samples description map
code

A2H111Q01 dam Vaalkop Dam on Elands River: Down Stream none

A2H110Q01 dam Canal From Roodekopjes Dam to Vaalkop DA none

A2H094Q01 dam Bospoort Dam on Hex River: Down Stream W none

Station	total n samples	description	map code
A2H111Q01	dam	Vaalkop Dam on Elands River: Down Stream	none
A2H110Q01	dam	Canal From Roodekopjes Dam to Vaalkop DA	none
A2H094Q01	dam	Bospoort Dam on Hex River: Down Stream W	none

A22J - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(24) Catchment A23A: Total number of "H...Q" (flow gauging, quality) stations = 12.

Station total n
samples description map
code

A2H102Q01 dam Roodeplaat Dam on Pienaars River: Down S none

A2H101Q01 dam Roodeplaat Dam on Pienaars River: Left C none

A2H100Q01 dam Roodeplaat Dam on Pienaars River: Left C none

A2H124Q01 sewage Zeekoegat Sewage Effluent none

A2H029Q01 1842 at Leeuwfontein on Edendalspruit 33

A2H028Q01 3010 at Kameeldrift on Hartbeesspruit 34

A2H027Q01 4002 Pienaars River at Baviaanspoort 35

A2H126Q01 272 at Franspoort Road Bridge on Edendalspru 36

A2H054Q01 1088 at Wolmaranspoort on Hartbeesspruit 37

A2H125Q01 sewage Baviaanspoort Sewage Effluent none

A2H055Q01 1151 Moretele Spruit at Derdepoort Pretoria-M 38

A2H127Q01 265 Pienaars River at Baviaanspoort Magalie 39

Station	total n samples	description	map code
A2H102Q01	dam	Roodeplaat Dam on Pienaars River: Down S	none
A2H101Q01	dam	Roodeplaat Dam on Pienaars River: Left C	none
A2H100Q01	dam	Roodeplaat Dam on Pienaars River: Left C	none
A2H124Q01	sewage	Zeekoegat Sewage Effluent	none
A2H029Q01	1842	at Leeuwfontein on Edendalspruit	33
A2H028Q01	3010	at Kameeldrift on Hartbeesspruit	34
A2H027Q01	4002	Pienaars River at Baviaanspoort	35
A2H126Q01	272	at Franspoort Road Bridge on Edendalspru	36
A2H054Q01	1088	at Wolmaranspoort on Hartbeesspruit	37
A2H125Q01	sewage	Baviaanspoort Sewage Effluent	none
A2H055Q01	1151	Moretele Spruit at Derdepoort Pretoria-M	38
A2H127Q01	265	Pienaars River at Baviaanspoort Magalie	39

A23A - Stations used: 7, Samples selected: 1036 between 2001-01-01 and 2005-12-31.

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 1036 5.74 A2H028Q01 8.16 A2H028Q01 8.43 A2H028Q01 8.94 A2H054Q01 -log [H⁺]

Fluoride 1036 0.05 A2H055Q01 0.26 A2H028Q01 0.41 A2H126Q01 0.76 A2H126Q01 mg l^-1

NO3(N) 1036 0.02 A2H028Q01 0.779 A2H028Q01 3.966 A2H027Q01 18.251 A2H027Q01 mg l^-1

Sulphate 1036 3 A2H126Q01 24.3 A2H054Q01 44.8 A2H126Q01 88.8 A2H027Q01 mg l^-1

Chloride 1036 5 A2H054Q01 26.6 A2H028Q01 56.4 A2H027Q01 88.4 A2H027Q01 mg l^-1

Sodium 1036 4.8 A2H054Q01 20.4 A2H028Q01 56.6 A2H027Q01 76.6 A2H027Q01 mg l^-1

Magnesium 1036 4.2 A2H055Q01 20.4 A2H027Q01 28.7 A2H127Q01 40.8 A2H054Q01 mg l^-1

TDS 1036 95 A2H055Q01 343 A2H055Q01 420 A2H027Q01 553 A2H029Q01 mg l^-1

Conductivity 1036 13.4 A2H055Q01 47 A2H126Q01 59.8 A2H027Q01 72.8 A2H027Q01 mS m^-1

Summary of classification: A23A n=1036 Class 0

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	1036	5.74	A2H028Q01	8.16	A2H028Q01	8.43	A2H028Q01	8.94	A2H054Q01	-log [H⁺]
Fluoride	1036	0.05	A2H055Q01	0.26	A2H028Q01	0.41	A2H126Q01	0.76	A2H126Q01	mg l^-1
NO3(N)	1036	0.02	A2H028Q01	0.779	A2H028Q01	3.966	A2H027Q01	18.251	A2H027Q01	mg l^-1
Sulphate	1036	3	A2H126Q01	24.3	A2H054Q01	44.8	A2H126Q01	88.8	A2H027Q01	mg l^-1
Chloride	1036	5	A2H054Q01	26.6	A2H028Q01	56.4	A2H027Q01	88.4	A2H027Q01	mg l^-1
Sodium	1036	4.8	A2H054Q01	20.4	A2H028Q01	56.6	A2H027Q01	76.6	A2H027Q01	mg l^-1
Magnesium	1036	4.2	A2H055Q01	20.4	A2H027Q01	28.7	A2H127Q01	40.8	A2H054Q01	mg l^-1
TDS	1036	95	A2H055Q01	343	A2H055Q01	420	A2H027Q01	553	A2H029Q01	mg l^-1
Conductivity	1036	13.4	A2H055Q01	47	A2H126Q01	59.8	A2H027Q01	72.8	A2H027Q01	mS m^-1

(25) Catchment A23B: Total number of "H...Q" (flow gauging, quality) stations = 7.

Station total n
samples description map
code

A2H006Q01 1430 Pienaars River at Klipdrift 40

A2H030Q01 489 Roodeplaat Spruit at Roodeplaat-Louwsbak 41

A2H122Q02 sewage Roodeplaat Sewage in Settling Pond none

A2H122Q01 sewage Roodeplaat Sewage: Settling Ponds Outfl none

A2H102Q01 dam Roodeplaat Dam on Pienaars River: Down S none

A2H101Q01 dam Roodeplaat Dam on Pienaars River: Left C none

A2H100Q01 dam Roodeplaat Dam on Pienaars River: Left C none

Station	total n samples	description	map code
A2H006Q01	1430	Pienaars River at Klipdrift	40
A2H030Q01	489	Roodeplaat Spruit at Roodeplaat-Louwsbak	41
A2H122Q02	sewage	Roodeplaat Sewage in Settling Pond	none
A2H122Q01	sewage	Roodeplaat Sewage: Settling Ponds Outfl	none
A2H102Q01	dam	Roodeplaat Dam on Pienaars River: Down S	none
A2H101Q01	dam	Roodeplaat Dam on Pienaars River: Left C	none
A2H100Q01	dam	Roodeplaat Dam on Pienaars River: Left C	none

A23B - Stations used: 2, Samples selected: 242 between 2001-01-01 and 2005-12-31.

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 242 7.69 A2H006Q01 8.19 A2H006Q01 8.36 A2H006Q01 8.86 A2H030Q01 -log [H⁺]

Fluoride 242 0.26 A2H006Q01 0.42 A2H006Q01 1.88 A2H030Q01 3.87 A2H030Q01 mg l^-1

NO3(N) 242 0.02 A2H006Q01 0.535 A2H006Q01 1.046 A2H006Q01 1.542 A2H006Q01 mg l^-1

Sulphate 242 4.9 A2H006Q01 31.4 A2H006Q01 63.6 A2H030Q01 247.7 A2H030Q01 mg l^-1

Chloride 242 15.3 A2H030Q01 43.9 A2H006Q01 51.4 A2H006Q01 75.8 A2H030Q01 mg l^-1

Sodium 242 18 A2H006Q01 39 A2H006Q01 76.5 A2H030Q01 179.1 A2H030Q01 mg l^-1

Magnesium 242 8.7 A2H006Q01 18 A2H006Q01 26.7 A2H030Q01 59 A2H030Q01 mg l^-1

TDS 242 201 A2H006Q01 349 A2H006Q01 573 A2H030Q01 1131 A2H030Q01 mg l^-1

Conductivity 242 28.2 A2H006Q01 50.4 A2H006Q01 74.9 A2H030Q01 140 A2H030Q01 mS m^-1

Summary of classification (consituents in each range in brackets): A23B n=242 Class 2: I(TDS EC) II(F)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	242	7.69	A2H006Q01	8.19	A2H006Q01	8.36	A2H006Q01	8.86	A2H030Q01	-log [H⁺]
Fluoride	242	0.26	A2H006Q01	0.42	A2H006Q01	1.88	A2H030Q01	3.87	A2H030Q01	mg l^-1
NO3(N)	242	0.02	A2H006Q01	0.535	A2H006Q01	1.046	A2H006Q01	1.542	A2H006Q01	mg l^-1
Sulphate	242	4.9	A2H006Q01	31.4	A2H006Q01	63.6	A2H030Q01	247.7	A2H030Q01	mg l^-1
Chloride	242	15.3	A2H030Q01	43.9	A2H006Q01	51.4	A2H006Q01	75.8	A2H030Q01	mg l^-1
Sodium	242	18	A2H006Q01	39	A2H006Q01	76.5	A2H030Q01	179.1	A2H030Q01	mg l^-1
Magnesium	242	8.7	A2H006Q01	18	A2H006Q01	26.7	A2H030Q01	59	A2H030Q01	mg l^-1
TDS	242	201	A2H006Q01	349	A2H006Q01	573	A2H030Q01	1131	A2H030Q01	mg l^-1
Conductivity	242	28.2	A2H006Q01	50.4	A2H006Q01	74.9	A2H030Q01	140	A2H030Q01	mS m^-1

(27) Catchment A23D: Total number of "H...Q" (flow gauging, quality) stations = 3.

Station total n
samples description map
code

A2H057Q01 1147 Skinner Spruit at Daspoort Pretoria-Bant 42

A2H056Q01 1155 Steenoond Spruit at Belle Ombre Station- 43

A2H062Q01 1068 Walker Spruit at Sunnyside Pretoria-Loft 44

Station	total n samples	description	map code
A2H057Q01	1147	Skinner Spruit at Daspoort Pretoria-Bant	42
A2H056Q01	1155	Steenoond Spruit at Belle Ombre Station-	43
A2H062Q01	1068	Walker Spruit at Sunnyside Pretoria-Loft	44

A23D - Stations used: 3, Samples selected: 624 between 2001-01-01 and 2005-12-31.

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 624 6.66 A2H062Q01 8.14 A2H056Q01 8.41 A2H062Q01 9.55 A2H056Q01 -log [H⁺]

Fluoride 624 0.1 A2H056Q01 0.24 A2H056Q01 0.31 A2H057Q01 0.4 A2H057Q01 mg l^-1

NO3(N) 624 0.02 A2H062Q01 1.636 A2H057Q01 3.297 A2H057Q01 7.016 A2H057Q01 mg l^-1

Sulphate 624 5.2 A2H062Q01 27.4 A2H056Q01 62.7 A2H057Q01 114.3 A2H056Q01 mg l^-1

Chloride 624 5 A2H062Q01 33.5 A2H062Q01 54.9 A2H062Q01 226.3 A2H062Q01 mg l^-1

Sodium 624 5.2 A2H062Q01 23.3 A2H062Q01 43 A2H057Q01 146.3 A2H062Q01 mg l^-1

Magnesium 624 3.9 A2H062Q01 17.4 A2H062Q01 22.8 A2H056Q01 52.6 A2H056Q01 mg l^-1

TDS 624 88 A2H062Q01 331 A2H062Q01 409 A2H057Q01 692 A2H056Q01 mg l^-1

Conductivity 624 14.4 A2H062Q01 45.7 A2H057Q01 58.8 A2H057Q01 96.2 A2H062Q01 mS m^-1

Summary of classification: A23D n=624 Class 0

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	624	6.66	A2H062Q01	8.14	A2H056Q01	8.41	A2H062Q01	9.55	A2H056Q01	-log [H⁺]
Fluoride	624	0.1	A2H056Q01	0.24	A2H056Q01	0.31	A2H057Q01	0.4	A2H057Q01	mg l^-1
NO3(N)	624	0.02	A2H062Q01	1.636	A2H057Q01	3.297	A2H057Q01	7.016	A2H057Q01	mg l^-1
Sulphate	624	5.2	A2H062Q01	27.4	A2H056Q01	62.7	A2H057Q01	114.3	A2H056Q01	mg l^-1
Chloride	624	5	A2H062Q01	33.5	A2H062Q01	54.9	A2H062Q01	226.3	A2H062Q01	mg l^-1
Sodium	624	5.2	A2H062Q01	23.3	A2H062Q01	43	A2H057Q01	146.3	A2H062Q01	mg l^-1
Magnesium	624	3.9	A2H062Q01	17.4	A2H062Q01	22.8	A2H056Q01	52.6	A2H056Q01	mg l^-1
TDS	624	88	A2H062Q01	331	A2H062Q01	409	A2H057Q01	692	A2H056Q01	mg l^-1
Conductivity	624	14.4	A2H062Q01	45.7	A2H057Q01	58.8	A2H057Q01	96.2	A2H062Q01	mS m^-1

(28) Catchment A23E: Total number of "H...Q" (flow gauging, quality) stations = 6.

Station total n
samples description map
code

A2H061Q01 1076 Apies River at Rondavel 45

A2H084Q01 dam Bon Accord Dam on Apies River: Right Can none

A2H085Q01 dam Bon Accord Dam on Apies River: Right Can none

A2H011Q01 0 Bon Accord none

A2H066Q01 63 Apies River at Onderstepoort Nature Rese 46

A2H063Q01 1074 Wonderboom Spruit at Mayville Pretoria 47

Station	total n samples	description	map code
A2H061Q01	1076	Apies River at Rondavel	45
A2H084Q01	dam	Bon Accord Dam on Apies River: Right Can	none
A2H085Q01	dam	Bon Accord Dam on Apies River: Right Can	none
A2H011Q01	0	Bon Accord	none
A2H066Q01	63	Apies River at Onderstepoort Nature Rese	46
A2H063Q01	1074	Wonderboom Spruit at Mayville Pretoria	47

A23E - Stations used: 4, Samples selected: 354 between 2001-01-01 and 2005-12-31.

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 354 7.09 A2H063Q01 8.14 A2H063Q01 8.34 A2H061Q01 8.78 A2H061Q01 -log [H⁺]

Fluoride 354 0.1 A2H063Q01 0.27 A2H063Q01 0.34 A2H061Q01 0.61 A2H063Q01 mg l^-1

NO3(N) 354 0.02 A2H063Q01 2.057 A2H061Q01 3.981 A2H061Q01 9.839 A2H061Q01 mg l^-1

Sulphate 354 7.9 A2H063Q01 46.8 A2H063Q01 67 A2H061Q01 95.4 A2H063Q01 mg l^-1

Chloride 354 5 A2H063Q01 40 A2H063Q01 67.3 A2H061Q01 90.4 A2H061Q01 mg l^-1

Sodium 354 3.4 A2H063Q01 26.5 A2H063Q01 79.1 A2H061Q01 105.4 A2H061Q01 mg l^-1

Magnesium 354 3.8 A2H063Q01 20.8 A2H063Q01 31.2 A2H063Q01 38.8 A2H063Q01 mg l^-1

TDS 354 65 A2H063Q01 416 A2H061Q01 551 A2H061Q01 665 A2H061Q01 mg l^-1

Conductivity 354 10.3 A2H063Q01 57.7 A2H063Q01 76.1 A2H061Q01 90.5 A2H061Q01 mS m^-1

Summary of classification (consituents in each range in brackets): A23E n=354 Class 1: I(Mg TDS EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	354	7.09	A2H063Q01	8.14	A2H063Q01	8.34	A2H061Q01	8.78	A2H061Q01	-log [H⁺]
Fluoride	354	0.1	A2H063Q01	0.27	A2H063Q01	0.34	A2H061Q01	0.61	A2H063Q01	mg l^-1
NO3(N)	354	0.02	A2H063Q01	2.057	A2H061Q01	3.981	A2H061Q01	9.839	A2H061Q01	mg l^-1
Sulphate	354	7.9	A2H063Q01	46.8	A2H063Q01	67	A2H061Q01	95.4	A2H063Q01	mg l^-1
Chloride	354	5	A2H063Q01	40	A2H063Q01	67.3	A2H061Q01	90.4	A2H061Q01	mg l^-1
Sodium	354	3.4	A2H063Q01	26.5	A2H063Q01	79.1	A2H061Q01	105.4	A2H061Q01	mg l^-1
Magnesium	354	3.8	A2H063Q01	20.8	A2H063Q01	31.2	A2H063Q01	38.8	A2H063Q01	mg l^-1
TDS	354	65	A2H063Q01	416	A2H061Q01	551	A2H061Q01	665	A2H061Q01	mg l^-1
Conductivity	354	10.3	A2H063Q01	57.7	A2H063Q01	76.1	A2H061Q01	90.5	A2H061Q01	mS m^-1

(29) Catchment A23F: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

A2H026Q01 343 Apies River at Hammanskraal 48

A2H061Q01 1076 Apies River at Rondavel 49

Station	total n samples	description	map code
A2H026Q01	343	Apies River at Hammanskraal	48
A2H061Q01	1076	Apies River at Rondavel	49

A23F - Stations used: 2, Samples selected: 142 between 2001-01-01 and 2005-12-31.

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 142 7.11 A2H061Q01 8.17 A2H061Q01 8.36 A2H061Q01 8.78 A2H061Q01 -log [H⁺]

Fluoride 142 0.21 A2H061Q01 0.3 A2H061Q01 0.35 A2H061Q01 0.44 A2H061Q01 mg l^-1

NO3(N) 142 0.055 A2H061Q01 3.282 A2H061Q01 5.074 A2H061Q01 9.839 A2H061Q01 mg l^-1

Sulphate 142 37 A2H061Q01 61.8 A2H061Q01 72.3 A2H061Q01 76.4 A2H061Q01 mg l^-1

Chloride 142 27.5 A2H061Q01 59.7 A2H061Q01 73.3 A2H061Q01 90.4 A2H061Q01 mg l^-1

Sodium 142 25.3 A2H061Q01 66.5 A2H061Q01 91.4 A2H061Q01 105.4 A2H061Q01 mg l^-1

Magnesium 142 12.6 A2H061Q01 18.3 A2H061Q01 22.7 A2H061Q01 32.9 A2H061Q01 mg l^-1

TDS 142 289 A2H061Q01 502 A2H061Q01 571 A2H061Q01 665 A2H061Q01 mg l^-1

Conductivity 142 44 A2H061Q01 69.7 A2H061Q01 78.9 A2H061Q01 90.5 A2H061Q01 mS m^-1

Summary of classification (consituents in each range in brackets): A23F n=142 Class 1: I(TDS EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	142	7.11	A2H061Q01	8.17	A2H061Q01	8.36	A2H061Q01	8.78	A2H061Q01	-log [H⁺]
Fluoride	142	0.21	A2H061Q01	0.3	A2H061Q01	0.35	A2H061Q01	0.44	A2H061Q01	mg l^-1
NO3(N)	142	0.055	A2H061Q01	3.282	A2H061Q01	5.074	A2H061Q01	9.839	A2H061Q01	mg l^-1
Sulphate	142	37	A2H061Q01	61.8	A2H061Q01	72.3	A2H061Q01	76.4	A2H061Q01	mg l^-1
Chloride	142	27.5	A2H061Q01	59.7	A2H061Q01	73.3	A2H061Q01	90.4	A2H061Q01	mg l^-1
Sodium	142	25.3	A2H061Q01	66.5	A2H061Q01	91.4	A2H061Q01	105.4	A2H061Q01	mg l^-1
Magnesium	142	12.6	A2H061Q01	18.3	A2H061Q01	22.7	A2H061Q01	32.9	A2H061Q01	mg l^-1
TDS	142	289	A2H061Q01	502	A2H061Q01	571	A2H061Q01	665	A2H061Q01	mg l^-1
Conductivity	142	44	A2H061Q01	69.7	A2H061Q01	78.9	A2H061Q01	90.5	A2H061Q01	mS m^-1

(30) Catchment A23G: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

A2H097Q01 dam Warmbad Dam on Buffels Spruit: Left Cana none

Station	total n samples	description	map code
A2H097Q01	dam	Warmbad Dam on Buffels Spruit: Left Cana	none

A23G - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(32) Catchment A23J: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

A2H106Q01 dam Klipvoor Dam on Pienaars River: Down Str none

Station	total n samples	description	map code
A2H106Q01	dam	Klipvoor Dam on Pienaars River: Down Str	none

A23J - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(34) Catchment A23L: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

A2H021Q01 991 Pienaars River at Buffelspoort 50

A2H106Q01 dam Klipvoor Dam on Pienaars River: Down Str none

Station	total n samples	description	map code
A2H021Q01	991	Pienaars River at Buffelspoort	50
A2H106Q01	dam	Klipvoor Dam on Pienaars River: Down Str	none

A23L - Stations used: 1, Samples selected: 107 between 2001-01-01 and 2005-12-31.

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 107 7.43 A2H021Q01 8.24 A2H021Q01 8.55 A2H021Q01 8.92 A2H021Q01 -log [H⁺]

Fluoride 107 0.37 A2H021Q01 0.47 A2H021Q01 0.59 A2H021Q01 0.68 A2H021Q01 mg l^-1

NO3(N) 107 0.02 A2H021Q01 0.167 A2H021Q01 0.418 A2H021Q01 0.687 A2H021Q01 mg l^-1

Sulphate 107 22.8 A2H021Q01 48.1 A2H021Q01 62.1 A2H021Q01 75.7 A2H021Q01 mg l^-1

Chloride 107 24.5 A2H021Q01 57.6 A2H021Q01 76.1 A2H021Q01 93.8 A2H021Q01 mg l^-1

Sodium 107 26.8 A2H021Q01 60.2 A2H021Q01 82.3 A2H021Q01 98.8 A2H021Q01 mg l^-1

Magnesium 107 6.6 A2H021Q01 18.1 A2H021Q01 21.5 A2H021Q01 29.2 A2H021Q01 mg l^-1

TDS 107 227 A2H021Q01 445 A2H021Q01 550 A2H021Q01 623 A2H021Q01 mg l^-1

Conductivity 107 34.5 A2H021Q01 62.6 A2H021Q01 75.3 A2H021Q01 83 A2H021Q01 mS m^-1

Summary of classification (consituents in each range in brackets): A23L n=107 Class 1: I(TDS EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	107	7.43	A2H021Q01	8.24	A2H021Q01	8.55	A2H021Q01	8.92	A2H021Q01	-log [H⁺]
Fluoride	107	0.37	A2H021Q01	0.47	A2H021Q01	0.59	A2H021Q01	0.68	A2H021Q01	mg l^-1
NO3(N)	107	0.02	A2H021Q01	0.167	A2H021Q01	0.418	A2H021Q01	0.687	A2H021Q01	mg l^-1
Sulphate	107	22.8	A2H021Q01	48.1	A2H021Q01	62.1	A2H021Q01	75.7	A2H021Q01	mg l^-1
Chloride	107	24.5	A2H021Q01	57.6	A2H021Q01	76.1	A2H021Q01	93.8	A2H021Q01	mg l^-1
Sodium	107	26.8	A2H021Q01	60.2	A2H021Q01	82.3	A2H021Q01	98.8	A2H021Q01	mg l^-1
Magnesium	107	6.6	A2H021Q01	18.1	A2H021Q01	21.5	A2H021Q01	29.2	A2H021Q01	mg l^-1
TDS	107	227	A2H021Q01	445	A2H021Q01	550	A2H021Q01	623	A2H021Q01	mg l^-1
Conductivity	107	34.5	A2H021Q01	62.6	A2H021Q01	75.3	A2H021Q01	83	A2H021Q01	mS m^-1

(35) Catchment A24A: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

A2H060Q01 890 Crocodile River at Nooitgedacht 51

A2H059Q01 804 Crocodile River at Vaalkop-Atlanta 52

Station	total n samples	description	map code
A2H060Q01	890	Crocodile River at Nooitgedacht	51
A2H059Q01	804	Crocodile River at Vaalkop-Atlanta	52

A24A - Stations used: 2, Samples selected: 340 between 2001-01-01 and 2005-12-31.

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 340 7.64 A2H059Q01 8.24 A2H060Q01 8.5 A2H059Q01 8.81 A2H060Q01 -log [H⁺]

Fluoride 340 0.22 A2H060Q01 0.43 A2H059Q01 0.54 A2H060Q01 0.73 A2H059Q01 mg l^-1

NO3(N) 340 0.02 A2H060Q01 0.314 A2H060Q01 0.705 A2H059Q01 2.933 A2H060Q01 mg l^-1

Sulphate 340 36 A2H060Q01 72.1 A2H060Q01 92.3 A2H059Q01 136.4 A2H059Q01 mg l^-1

Chloride 340 31.9 A2H060Q01 75.7 A2H059Q01 105.7 A2H060Q01 173.5 A2H059Q01 mg l^-1

Sodium 340 28.8 A2H059Q01 64.3 A2H059Q01 85.8 A2H060Q01 120.6 A2H059Q01 mg l^-1

Magnesium 340 10.8 A2H060Q01 26.8 A2H060Q01 34.6 A2H060Q01 53.7 A2H059Q01 mg l^-1

TDS 340 273 A2H059Q01 502 A2H060Q01 618 A2H060Q01 820 A2H059Q01 mg l^-1

Conductivity 340 39.9 A2H060Q01 72.1 A2H060Q01 87.2 A2H060Q01 118 A2H059Q01 mS m^-1

Summary of classification (consituents in each range in brackets): A24A n=340 Class 1: I(Cl Mg TDS EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	340	7.64	A2H059Q01	8.24	A2H060Q01	8.5	A2H059Q01	8.81	A2H060Q01	-log [H⁺]
Fluoride	340	0.22	A2H060Q01	0.43	A2H059Q01	0.54	A2H060Q01	0.73	A2H059Q01	mg l^-1
NO3(N)	340	0.02	A2H060Q01	0.314	A2H060Q01	0.705	A2H059Q01	2.933	A2H060Q01	mg l^-1
Sulphate	340	36	A2H060Q01	72.1	A2H060Q01	92.3	A2H059Q01	136.4	A2H059Q01	mg l^-1
Chloride	340	31.9	A2H060Q01	75.7	A2H059Q01	105.7	A2H060Q01	173.5	A2H059Q01	mg l^-1
Sodium	340	28.8	A2H059Q01	64.3	A2H059Q01	85.8	A2H060Q01	120.6	A2H059Q01	mg l^-1
Magnesium	340	10.8	A2H060Q01	26.8	A2H060Q01	34.6	A2H060Q01	53.7	A2H059Q01	mg l^-1
TDS	340	273	A2H059Q01	502	A2H060Q01	618	A2H060Q01	820	A2H059Q01	mg l^-1
Conductivity	340	39.9	A2H060Q01	72.1	A2H060Q01	87.2	A2H060Q01	118	A2H059Q01	mS m^-1

(36) Catchment A24B: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

A2H025Q01 338 Crocodile River at Hardekoolbult 53

A2H060Q01 890 Crocodile River at Nooitgedacht 54

Station	total n samples	description	map code
A2H025Q01	338	Crocodile River at Hardekoolbult	53
A2H060Q01	890	Crocodile River at Nooitgedacht	54

A24B - Stations used: 2, Samples selected: 204 between 2001-01-01 and 2005-12-31.

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 204 7.78 A2H060Q01 8.29 A2H060Q01 8.55 A2H060Q01 8.81 A2H060Q01 -log [H⁺]

Fluoride 204 0.22 A2H060Q01 0.45 A2H060Q01 0.55 A2H060Q01 0.65 A2H060Q01 mg l^-1

NO3(N) 204 0.02 A2H060Q01 0.211 A2H060Q01 0.475 A2H060Q01 2.933 A2H060Q01 mg l^-1

Sulphate 204 36 A2H060Q01 69.1 A2H060Q01 88.3 A2H060Q01 108.8 A2H060Q01 mg l^-1

Chloride 204 31.9 A2H060Q01 74.8 A2H060Q01 99.7 A2H060Q01 135 A2H060Q01 mg l^-1

Sodium 204 33.6 A2H060Q01 65 A2H060Q01 85.5 A2H060Q01 106.5 A2H060Q01 mg l^-1

Magnesium 204 10.8 A2H060Q01 25.5 A2H060Q01 32.5 A2H060Q01 42 A2H060Q01 mg l^-1

TDS 204 274 A2H060Q01 502 A2H060Q01 613 A2H060Q01 704 A2H060Q01 mg l^-1

Conductivity 204 39.9 A2H060Q01 71.3 A2H060Q01 84.2 A2H060Q01 99.6 A2H060Q01 mS m^-1

Summary of classification (consituents in each range in brackets): A24B n=204 Class 1: I(Mg TDS EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	204	7.78	A2H060Q01	8.29	A2H060Q01	8.55	A2H060Q01	8.81	A2H060Q01	-log [H⁺]
Fluoride	204	0.22	A2H060Q01	0.45	A2H060Q01	0.55	A2H060Q01	0.65	A2H060Q01	mg l^-1
NO3(N)	204	0.02	A2H060Q01	0.211	A2H060Q01	0.475	A2H060Q01	2.933	A2H060Q01	mg l^-1
Sulphate	204	36	A2H060Q01	69.1	A2H060Q01	88.3	A2H060Q01	108.8	A2H060Q01	mg l^-1
Chloride	204	31.9	A2H060Q01	74.8	A2H060Q01	99.7	A2H060Q01	135	A2H060Q01	mg l^-1
Sodium	204	33.6	A2H060Q01	65	A2H060Q01	85.5	A2H060Q01	106.5	A2H060Q01	mg l^-1
Magnesium	204	10.8	A2H060Q01	25.5	A2H060Q01	32.5	A2H060Q01	42	A2H060Q01	mg l^-1
TDS	204	274	A2H060Q01	502	A2H060Q01	613	A2H060Q01	704	A2H060Q01	mg l^-1
Conductivity	204	39.9	A2H060Q01	71.3	A2H060Q01	84.2	A2H060Q01	99.6	A2H060Q01	mS m^-1

(37) Catchment A24C: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

A2H116Q01 dam Paul Hugo Dam on Crocodile River: Down S none

A2H025Q01 338 Crocodile River at Hardekoolbult 55

Station	total n samples	description	map code
A2H116Q01	dam	Paul Hugo Dam on Crocodile River: Down S	none
A2H025Q01	338	Crocodile River at Hardekoolbult	55

A24C - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(42) Catchment A24H: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

A2H037Q01 119 Crocodile River at Buffelshoek 56

A2H116Q01 dam Paul Hugo Dam on Crocodile River: Down S none

A24H - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(44) Catchment A31A: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

A3H004Q01 0 Groot Marico-Eye at Grootfontein none

(45) Catchment A31B: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

A3H029Q01 dam Marico-Bosveld Dam on Great Marico Riv: none

A3H028Q01 dam Marico-Bosveld Dam on Great Marico River none

(46) Catchment A31C: Total number of "H...Q" (flow gauging, quality) stations = 8.

Station total n
samples description map
code

A3H015Q01 eye Doornfontein Eye at Doornfontein none

A3H013Q01 eye XXkraal Eye at XXkraal none

A3H014Q01 eye Rietpoort Eye at Rietpoort none

A3H019Q01 canal Malmanieloop Right Canal at Doornplaat none

A3H026Q01 eye Doornplaat Eye at Doornplaat none

A3H018Q01 73 Malmanieloop at Naauwpoort 57

A3H023Q01 eye Malmanie Eye at Eye of Malmanie none

A3H020Q01 eye Kareebosch Eye at Kareebosch none

A31C - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(47) Catchment A31D: Total number of "H...Q" (flow gauging, quality) stations = 11.

Station total n
samples description map
code

A3H031Q01 dam Little Marico Poort Dam on Lit Marico Ri none

A3H030Q01 dam Little Marico Poort Dam on L Marico Riv: none

A3H024Q01 9 at Hazia Zeerust Drive-in on Klein Maric 58

A3H041Q01 33 Karee Spruit at Zeerust Road Bridge-D-S 59

A3H012Q01 eye Klaarstroom Eye at Klaarstroom none

A3H011Q01 eye Vergenoegd Eye at Vergenoegd none

A3H022Q01 eye Malmanieloop Lower Eye at Paardenvallei none

A3H021Q01 eye Malmanieloop Upper Eye at Paardenvallei none

A3H010Q01 eye Stinkhoutboom Eye at Stinkhoutboom none

A3H009Q01 eye Buffelshoek Eye at Buffelshoek none

A3H017Q01 eye Rhenosterfontein Eye at Rhenosterfontein none

A31D - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(48) Catchment A31E: Total number of "H...Q" (flow gauging, quality) stations = 4.

Station total n
samples description map
code

A3H033Q01 dam Kromellenboog Dam on Little Marico River none

A3H031Q01 dam Little Marico Poort Dam on Lit Marico Ri none

A3H030Q01 dam Little Marico Poort Dam on L Marico Riv: none

A3H016Q01 54 Wilgeboom Spruit at Wilgeboomspruit 60

A31E - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(49) Catchment A31F: Total number of "H...Q" (flow gauging, quality) stations = 4.

Station total n
samples description map
code

A3H032Q01 dam Kromellenboog Dam on Litt..Marico Riv: D none

A3H033Q01 dam Kromellenboog Dam on Little Marico River none

A3H029Q01 dam Marico-Bosveld Dam on Great Marico Riv: none

A3H028Q01 dam Marico-Bosveld Dam on Great Marico River none

A31F - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(55) Catchment A32C: Total number of "H...Q" (flow gauging, quality) stations = 3.

Station total n
samples description map
code

A3H007Q01 173 at Eerstepoort on Maricorivier 61

A3H034Q01 dam Molatedi Dam on Great Marico River: Outl none

A3H039Q01 dam Naaupoort at Moletedi Dam Pipeline From none

A32C - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(56) Catchment A32D: Total number of "H...Q" (flow gauging, quality) stations = 4.

Station total n
samples description map
code

A3H040Q01 410 Marico River at Mooiplaats-Tzwasa Weir A 62

A3H007Q01 173 at Eerstepoort on Maricorivier 63

A3H034Q01 dam Molatedi Dam on Great Marico River: Outl none

A3H039Q01 dam Naaupoort at Moletedi Dam Pipeline From none

A32D - Stations used: 2, Samples selected: 184 between 2001-01-01 and 2005-12-31.

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 184 7.26 A3H040Q01 8.31 A3H040Q01 8.48 A3H040Q01 8.7 A3H040Q01 -log [H⁺]

Fluoride 184 0.19 A3H040Q01 0.28 A3H040Q01 0.47 A3H040Q01 0.62 A3H040Q01 mg l^-1

NO3(N) 184 0.02 A3H040Q01 0.049 A3H040Q01 0.105 A3H040Q01 2.347 A3H040Q01 mg l^-1

Sulphate 184 7.9 A3H040Q01 15.9 A3H040Q01 21.5 A3H040Q01 35.7 A3H040Q01 mg l^-1

Chloride 184 5 A3H040Q01 5 A3H040Q01 12 A3H040Q01 16.6 A3H040Q01 mg l^-1

Sodium 184 5.3 A3H040Q01 7.7 A3H040Q01 12.7 A3H040Q01 19.4 A3H040Q01 mg l^-1

Magnesium 184 10.7 A3H040Q01 21.8 A3H040Q01 32.5 A3H040Q01 43.1 A3H040Q01 mg l^-1

TDS 184 159 A3H040Q01 279 A3H040Q01 379 A3H040Q01 454 A3H040Q01 mg l^-1

Conductivity 184 22.1 A3H040Q01 35.5 A3H040Q01 46.5 A3H040Q01 55.5 A3H040Q01 mS m^-1

Summary of classification (consituents in each range in brackets): A32D n=184 Class 1: I(Mg)

(58) Catchment B20C: Total number of "H...Q" (flow gauging, quality) stations = 4.

Station total n
samples description map
code

B2H010Q01 dam Bronkhorstspruit Dam on Bronkh..Spr: Ret none

B2H004Q01 817 Os Spruit at Boschkop 64

B2H006Q01 765 Os Spruit at Witpoort 65

B2H005Q01 556 Os Spruit at Knoppiesfontein 66

B20C - Stations used: 3, Samples selected: 221 between 2001-01-01 and 2005-12-31.

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 221 6.81 B2H006Q01 8.02 B2H006Q01 8.28 B2H004Q01 8.93 B2H004Q01 -log [H⁺]

Fluoride 221 0.05 B2H006Q01 0.17 B2H006Q01 0.22 B2H006Q01 1.11 B2H004Q01 mg l^-1

NO3(N) 221 0.02 B2H004Q01 0.233 B2H004Q01 0.537 B2H004Q01 0.759 B2H004Q01 mg l^-1

Sulphate 221 2 B2H006Q01 8.6 B2H004Q01 16.4 B2H004Q01 92.2 B2H004Q01 mg l^-1

Chloride 221 2 B2H006Q01 5 B2H006Q01 12.1 B2H004Q01 72.5 B2H004Q01 mg l^-1

Sodium 221 3.6 B2H006Q01 7 B2H004Q01 9.3 B2H004Q01 77.4 B2H004Q01 mg l^-1

Magnesium 221 4.5 B2H006Q01 11.9 B2H004Q01 15.4 B2H004Q01 22 B2H004Q01 mg l^-1

TDS 221 64 B2H006Q01 165 B2H004Q01 206 B2H004Q01 485 B2H004Q01 mg l^-1

Conductivity 221 9 B2H006Q01 22.2 B2H004Q01 27.4 B2H004Q01 73.5 B2H004Q01 mS m^-1

Summary of classification: B20C n=221 Class 0

(59) Catchment B20D: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

B2H003Q01 543 Bronkhorst Spruit at Bronkhorstspruit 67

B2H010Q01 dam Bronkhorstspruit Dam on Bronkh..Spr: Ret none

B20D - Stations used: 1, Samples selected: 130 between 2001-01-01 and 2005-12-31.

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 130 7.53 B2H003Q01 8.17 B2H003Q01 8.35 B2H003Q01 8.55 B2H003Q01 -log [H⁺]

Fluoride 130 0.1 B2H003Q01 0.25 B2H003Q01 0.33 B2H003Q01 0.42 B2H003Q01 mg l^-1

NO3(N) 130 0.02 B2H003Q01 0.122 B2H003Q01 0.368 B2H003Q01 0.86 B2H003Q01 mg l^-1

Sulphate 130 9.6 B2H003Q01 15.5 B2H003Q01 22.6 B2H003Q01 29.9 B2H003Q01 mg l^-1

Chloride 130 8 B2H003Q01 13.7 B2H003Q01 16.9 B2H003Q01 21.2 B2H003Q01 mg l^-1

Sodium 130 6.6 B2H003Q01 11.7 B2H003Q01 16.1 B2H003Q01 22.4 B2H003Q01 mg l^-1

Magnesium 130 10.3 B2H003Q01 15.7 B2H003Q01 20 B2H003Q01 21 B2H003Q01 mg l^-1

TDS 130 139 B2H003Q01 224 B2H003Q01 274 B2H003Q01 302 B2H003Q01 mg l^-1

Conductivity 130 19.9 B2H003Q01 30.6 B2H003Q01 37 B2H003Q01 40.5 B2H003Q01 mS m^-1

Summary of classification: B20D n=130 Class 0

(62) Catchment B31C: Total number of "H...Q" (flow gauging, quality) stations = 4.

Station total n
samples description map
code

B3H014Q01 dam Rust De Winter Dam on Elands River: Down none

B3H013Q01 dam Rust De Winter Dam on Elands River: Left none

B3H009Q01 dam Elands River Up-S Rust De Winter Dam in none

B3H003Q01 14 Elands River at Kameelrivier 68

B31C - Stations used: 1, Samples selected: 5 between 2001-01-01 and 2005-12-31.

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 5 8.32 B3H003Q01 8.36 B3H003Q01 8.71 B3H003Q01 8.78 B3H003Q01 -log [H⁺]

Fluoride 5 0.32 B3H003Q01 0.36 B3H003Q01 0.46 B3H003Q01 0.47 B3H003Q01 mg l^-1

NO3(N) 5 0.055 B3H003Q01 0.055 B3H003Q01 0.055 B3H003Q01 0.055 B3H003Q01 mg l^-1

Sulphate 5 6.2 B3H003Q01 10.7 B3H003Q01 20.2 B3H003Q01 25.7 B3H003Q01 mg l^-1

Chloride 5 66 B3H003Q01 93.6 B3H003Q01 122.4 B3H003Q01 126.6 B3H003Q01 mg l^-1

Sodium 5 68.4 B3H003Q01 85.3 B3H003Q01 116.6 B3H003Q01 120.4 B3H003Q01 mg l^-1

Magnesium 5 33.3 B3H003Q01 42.9 B3H003Q01 47.9 B3H003Q01 48.1 B3H003Q01 mg l^-1

TDS 5 534 B3H003Q01 673 B3H003Q01 714 B3H003Q01 729 B3H003Q01 mg l^-1

Conductivity 5 70.7 B3H003Q01 87.7 B3H003Q01 93.6 B3H003Q01 95.2 B3H003Q01 mS m^-1

Summary of classification (consituents in each range in brackets): B31C n=5 Class 1: I(Cl Na Mg TDS EC)

(67) Catchment D41A: Total number of "H...Q" (flow gauging, quality) stations = 12.

Station total n
samples description map
code

D4H016Q01 eye Welgedacht Eye at Welgedacht none

A3H020Q01 coord
error Drainage region error for Kareebosch Eye at Kareebosch:
Secondary=D4 but station=A3 !

A3H020Q01 coord
error Kareebosch Eye at Kareebosch none

D4H013Q01 90 Molopo River at Rietvallei 69

D4H017Q01 eye Olivendraai Eye at Olivendraai none

D4H036Q01 canal Molopo River: Canal at Ratshidi From Mod none

D4H012Q01 sewage Mmbatho Sewage Effluent none

D4H026Q01 70 Cookes Lake Molopo River at Mafikeng 70

D4H027Q01 sewage Mafikeng Sewage Treatment Works none

D4H037Q01 dam Lotlamoreng Dam on Molopo River: near DA none

D4H014Q01 eye Molopo Eye at Mallepoos Oog none

D4H004Q01 pipe Grootfontein Eye Pipeline at Valleifon none

D4H019Q01 eye Polfontein Eye at Matlabes Reserve none

D41A - Stations used: 2, Samples selected: 57 between 2001-01-01 and 2005-12-31.

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 57 7.42 D4H026Q01 8.28 D4H013Q01 8.51 D4H026Q01 8.68 D4H026Q01 -log [H⁺]

Fluoride 57 0.1 D4H026Q01 0.16 D4H013Q01 0.22 D4H026Q01 0.25 D4H026Q01 mg l^-1

NO3(N) 57 0.02 D4H026Q01 0.148 D4H026Q01 0.708 D4H026Q01 5.698 D4H026Q01 mg l^-1

Sulphate 57 2 D4H013Q01 20.5 D4H026Q01 38.4 D4H026Q01 49.9 D4H026Q01 mg l^-1

Chloride 57 5 D4H013Q01 30.8 D4H026Q01 60.9 D4H026Q01 73.4 D4H026Q01 mg l^-1

Sodium 57 3.2 D4H013Q01 20 D4H026Q01 43.2 D4H026Q01 64.4 D4H026Q01 mg l^-1

Magnesium 57 21.9 D4H026Q01 41.8 D4H013Q01 52.4 D4H026Q01 60.5 D4H026Q01 mg l^-1

TDS 57 288 D4H026Q01 529 D4H013Q01 595 D4H026Q01 637 D4H026Q01 mg l^-1

Conductivity 57 39.1 D4H026Q01 64.1 D4H026Q01 75.4 D4H026Q01 81.8 D4H026Q01 mS m^-1

Summary of classification (consituents in each range in brackets): D41A n=57 Class 1: I(Mg TDS EC)

(68) Catchment D41B: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C2H045Q01 coord
error Drainage region error for West Driefontein Canal South at Vlakplaa:
Secondary=D4 but station=C2 !

C2H045Q01 coord
error West Driefontein Canal South at Vlakplaa none

D41B - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

Processing dam monitoring points:

(1) Checked A2R008Q01 (Warmbad) for valid samples...

Quaternary D41B, dam station: A2R008Q01, Samples selected: 6 between 2001-01-01 and 2005-12-31.
[See summary of classification]

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 6 6.89 A2R008Q01 7.06 A2R008Q01 7.45 A2R008Q01 7.63 A2R008Q01 -log [H⁺]

Fluoride 6 0.1 A2R008Q01 0.18 A2R008Q01 0.19 A2R008Q01 0.19 A2R008Q01 mg l^-1

NO3(N) 6 0.02 A2R008Q01 0.045 A2R008Q01 0.066 A2R008Q01 0.078 A2R008Q01 mg l^-1

Sulphate 6 2 A2R008Q01 3 A2R008Q01 8.6 A2R008Q01 9.8 A2R008Q01 mg l^-1

Chloride 6 5 A2R008Q01 5 A2R008Q01 5.7 A2R008Q01 6.7 A2R008Q01 mg l^-1

Sodium 6 3.1 A2R008Q01 3.6 A2R008Q01 4.4 A2R008Q01 4.7 A2R008Q01 mg l^-1

Magnesium 6 1.6 A2R008Q01 1.7 A2R008Q01 2.2 A2R008Q01 2.5 A2R008Q01 mg l^-1

TDS 6 36 A2R008Q01 42 A2R008Q01 46 A2R008Q01 47 A2R008Q01 mg l^-1

Conductivity 6 6.2 A2R008Q01 6.7 A2R008Q01 7.1 A2R008Q01 7.1 A2R008Q01 mS m^-1

(2) Checked A2R010Q01 (Bierspruit) for valid samples...
No data: not classified.

(3) Checked A2R012Q01 (Klipvoor) for valid samples...

Quaternary D41B, dam station: A2R012Q01, Samples selected: 125 between 2001-01-01 and 2005-12-31.
[See summary of classification]

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 125 5.69 A2R012Q01 8.75 A2R012Q01 9.21 A2R012Q01 9.64 A2R012Q01 -log [H⁺]

Fluoride 125 0.35 A2R012Q01 0.48 A2R012Q01 0.55 A2R012Q01 0.62 A2R012Q01 mg l^-1

NO3(N) 125 0.02 A2R012Q01 0.053 A2R012Q01 0.137 A2R012Q01 1.957 A2R012Q01 mg l^-1

Sulphate 125 27.4 A2R012Q01 52.6 A2R012Q01 67.2 A2R012Q01 86.8 A2R012Q01 mg l^-1

Chloride 125 32.4 A2R012Q01 58.1 A2R012Q01 75.4 A2R012Q01 85 A2R012Q01 mg l^-1

Sodium 125 27.4 A2R012Q01 60 A2R012Q01 81.8 A2R012Q01 91.9 A2R012Q01 mg l^-1

Magnesium 125 11.1 A2R012Q01 18.5 A2R012Q01 21 A2R012Q01 28.8 A2R012Q01 mg l^-1

TDS 125 264 A2R012Q01 451 A2R012Q01 552 A2R012Q01 593 A2R012Q01 mg l^-1

Conductivity 125 39.1 A2R012Q01 62.9 A2R012Q01 75.3 A2R012Q01 81.9 A2R012Q01 mS m^-1

(4) Checked A1R001Q01 (Ngotwane) for valid samples...
No data: not classified.

(5) Checked A3R005Q01 (Sehujwane) for valid samples...
No data: not classified.

(6) Checked A2R014Q01 (Vaalkop) for valid samples...

Quaternary D41B, dam station: A2R014Q01, Samples selected: 34 between 2001-01-01 and 2005-12-31.
[See summary of classification]

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 34 7.82 A2R014Q01 8.32 A2R014Q01 8.43 A2R014Q01 8.53 A2R014Q01 -log [H⁺]

Fluoride 34 0.2 A2R014Q01 0.42 A2R014Q01 0.47 A2R014Q01 0.5 A2R014Q01 mg l^-1

NO3(N) 34 0.02 A2R014Q01 0.05 A2R014Q01 0.156 A2R014Q01 0.479 A2R014Q01 mg l^-1

Sulphate 34 31.3 A2R014Q01 47.3 A2R014Q01 61.5 A2R014Q01 82.4 A2R014Q01 mg l^-1

Chloride 34 23.3 A2R014Q01 48.8 A2R014Q01 59.4 A2R014Q01 92.6 A2R014Q01 mg l^-1

Sodium 34 17.2 A2R014Q01 31.9 A2R014Q01 38.4 A2R014Q01 61.5 A2R014Q01 mg l^-1

Magnesium 34 9.6 A2R014Q01 21.1 A2R014Q01 26 A2R014Q01 28.7 A2R014Q01 mg l^-1

TDS 34 205 A2R014Q01 331 A2R014Q01 382 A2R014Q01 473 A2R014Q01 mg l^-1

Conductivity 34 32.1 A2R014Q01 50.8 A2R014Q01 56.5 A2R014Q01 70.3 A2R014Q01 mS m^-1

(7) Checked A2R014Q01 (Vaalkop) for valid samples...

(8) Checked A2R014Q01 (Vaalkop) for valid samples...

(9) Checked A2R014Q01 (Vaalkop) for valid samples...

(10) Checked A2R015Q01 (Roodekopjes) for valid samples...

Quaternary D41B, dam station: A2R015Q01, Samples selected: 28 between 2001-01-01 and 2005-12-31.
[See summary of classification]

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 28 7.47 A2R015Q01 8.34 A2R015Q01 8.84 A2R015Q01 9.08 A2R015Q01 -log [H⁺]

Fluoride 28 0.22 A2R015Q01 0.36 A2R015Q01 0.43 A2R015Q01 0.47 A2R015Q01 mg l^-1

NO3(N) 28 0.02 A2R015Q01 0.058 A2R015Q01 0.572 A2R015Q01 2.242 A2R015Q01 mg l^-1

Sulphate 28 62.1 A2R015Q01 86 A2R015Q01 101.4 A2R015Q01 146.6 A2R015Q01 mg l^-1

Chloride 28 52.2 A2R015Q01 80.5 A2R015Q01 104.1 A2R015Q01 180.4 A2R015Q01 mg l^-1

Sodium 28 39.7 A2R015Q01 61.2 A2R015Q01 82.2 A2R015Q01 95.5 A2R015Q01 mg l^-1

Magnesium 28 20.6 A2R015Q01 29.7 A2R015Q01 33.7 A2R015Q01 36 A2R015Q01 mg l^-1

TDS 28 340 A2R015Q01 463 A2R015Q01 564 A2R015Q01 701 A2R015Q01 mg l^-1

Conductivity 28 52.5 A2R015Q01 70.5 A2R015Q01 83.3 A2R015Q01 108.2 A2R015Q01 mS m^-1

(11) Checked A2R016Q01 (Leeukraal) for valid samples...

Quaternary D41B, dam station: A2R016Q01, Samples selected: 99 between 2001-01-01 and 2005-12-31.
[See summary of classification]

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 99 7.35 A2R016Q01 8.21 A2R016Q01 8.69 A2R016Q01 9.04 A2R016Q01 -log [H⁺]

Fluoride 99 0.21 A2R016Q01 0.31 A2R016Q01 0.36 A2R016Q01 0.46 A2R016Q01 mg l^-1

NO3(N) 99 0.02 A2R016Q01 2.284 A2R016Q01 4.419 A2R016Q01 9.611 A2R016Q01 mg l^-1

Sulphate 99 35.2 A2R016Q01 60.5 A2R016Q01 71.7 A2R016Q01 83.6 A2R016Q01 mg l^-1

Chloride 99 33.6 A2R016Q01 63.3 A2R016Q01 77.1 A2R016Q01 86.3 A2R016Q01 mg l^-1

Sodium 99 30.2 A2R016Q01 71.9 A2R016Q01 91.6 A2R016Q01 103.4 A2R016Q01 mg l^-1

Magnesium 99 12.3 A2R016Q01 18.3 A2R016Q01 21.2 A2R016Q01 33.9 A2R016Q01 mg l^-1

TDS 99 297 A2R016Q01 514 A2R016Q01 573 A2R016Q01 607 A2R016Q01 mg l^-1

Conductivity 99 44.1 A2R016Q01 70 A2R016Q01 79.1 A2R016Q01 85.7 A2R016Q01 mS m^-1

(12) Checked A3R003Q01 (Kromellenboog) for valid samples...

Quaternary D41B, dam station: A3R003Q01, Samples selected: 59 between 2001-01-01 and 2005-12-31.
[See summary of classification]

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 59 7.79 A3R003Q01 8.15 A3R003Q01 8.34 A3R003Q01 8.71 A3R003Q01 -log [H⁺]

Fluoride 59 0.21 A3R003Q01 0.41 A3R003Q01 0.55 A3R003Q01 0.8 A3R003Q01 mg l^-1

NO3(N) 59 0.02 A3R003Q01 0.054 A3R003Q01 0.136 A3R003Q01 0.846 A3R003Q01 mg l^-1

Sulphate 59 4.3 A3R003Q01 46.4 A3R003Q01 77 A3R003Q01 84.8 A3R003Q01 mg l^-1

Chloride 59 5 A3R003Q01 10.9 A3R003Q01 15.5 A3R003Q01 18.5 A3R003Q01 mg l^-1

Sodium 59 5 A3R003Q01 8.3 A3R003Q01 12.5 A3R003Q01 16 A3R003Q01 mg l^-1

Magnesium 59 6.7 A3R003Q01 16.8 A3R003Q01 26.3 A3R003Q01 31.5 A3R003Q01 mg l^-1

TDS 59 115 A3R003Q01 249 A3R003Q01 343 A3R003Q01 391 A3R003Q01 mg l^-1

Conductivity 59 16 A3R003Q01 34.5 A3R003Q01 47.5 A3R003Q01 54.5 A3R003Q01 mS m^-1

(13) Checked A3R001Q01 (Marico-Bosveld) for valid samples...

Quaternary D41B, dam station: A3R001Q01, Samples selected: 63 between 2001-01-01 and 2005-12-31.
[See summary of classification]

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 63 7.68 A3R001Q01 8.28 A3R001Q01 8.47 A3R001Q01 8.68 A3R001Q01 -log [H⁺]

Fluoride 63 0.15 A3R001Q01 0.22 A3R001Q01 0.27 A3R001Q01 0.34 A3R001Q01 mg l^-1

NO3(N) 63 0.02 A3R001Q01 0.055 A3R001Q01 0.155 A3R001Q01 0.391 A3R001Q01 mg l^-1

Sulphate 63 3 A3R001Q01 7.6 A3R001Q01 11.6 A3R001Q01 22.8 A3R001Q01 mg l^-1

Chloride 63 2.5 A3R001Q01 5 A3R001Q01 6.7 A3R001Q01 7.9 A3R001Q01 mg l^-1

Sodium 63 3.1 A3R001Q01 5.4 A3R001Q01 7.2 A3R001Q01 8.3 A3R001Q01 mg l^-1

Magnesium 63 8.9 A3R001Q01 17.4 A3R001Q01 21.6 A3R001Q01 23.6 A3R001Q01 mg l^-1

TDS 63 125 A3R001Q01 223 A3R001Q01 269 A3R001Q01 299 A3R001Q01 mg l^-1

Conductivity 63 16.7 A3R001Q01 28.9 A3R001Q01 33.6 A3R001Q01 38.1 A3R001Q01 mS m^-1

(14) Checked A2R007Q01 (Lindleys Poort) for valid samples...

Quaternary D41B, dam station: A2R007Q01, Samples selected: 184 between 2001-01-01 and 2005-12-31.
[See summary of classification]

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 184 7.02 A2R007Q01 7.93 A2R007Q01 8.09 A2R007Q01 8.23 A2R007Q01 -log [H⁺]

Fluoride 184 0.1 A2R007Q01 0.17 A2R007Q01 0.22 A2R007Q01 0.28 A2R007Q01 mg l^-1

NO3(N) 184 0.02 A2R007Q01 0.065 A2R007Q01 0.2 A2R007Q01 0.368 A2R007Q01 mg l^-1

Sulphate 184 2 A2R007Q01 9.3 A2R007Q01 13.7 A2R007Q01 19.7 A2R007Q01 mg l^-1

Chloride 184 5 A2R007Q01 6.1 A2R007Q01 9.1 A2R007Q01 11 A2R007Q01 mg l^-1

Sodium 184 4.5 A2R007Q01 6.9 A2R007Q01 8 A2R007Q01 9.6 A2R007Q01 mg l^-1

Magnesium 184 4.9 A2R007Q01 7.9 A2R007Q01 9.2 A2R007Q01 10.4 A2R007Q01 mg l^-1

TDS 184 96 A2R007Q01 122 A2R007Q01 141 A2R007Q01 154 A2R007Q01 mg l^-1

Conductivity 184 12.5 A2R007Q01 17.6 A2R007Q01 19.8 A2R007Q01 21 A2R007Q01 mS m^-1

(15) Checked G2R001Q01 (Little Marico Poort) for valid samples...
Number of samples found = 0: less than the 5 required, so not classified.

(16) Checked A2R006Q01 (Bospoort) for valid samples...

Quaternary D41B, dam station: A2R006Q01, Samples selected: 30 between 2001-01-01 and 2005-12-31.
[See summary of classification]

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 30 7.36 A2R006Q01 9.11 A2R006Q01 9.7 A2R006Q01 9.9 A2R006Q01 -log [H⁺]

Fluoride 30 0.1 A2R006Q01 0.2 A2R006Q01 0.26 A2R006Q01 0.28 A2R006Q01 mg l^-1

NO3(N) 30 0.02 A2R006Q01 1.152 A2R006Q01 3.175 A2R006Q01 5.25 A2R006Q01 mg l^-1

Sulphate 30 76.5 A2R006Q01 96.1 A2R006Q01 110.2 A2R006Q01 122.4 A2R006Q01 mg l^-1

Chloride 30 96.5 A2R006Q01 126.4 A2R006Q01 157.6 A2R006Q01 185.9 A2R006Q01 mg l^-1

Sodium 30 42.4 A2R006Q01 51.9 A2R006Q01 70.1 A2R006Q01 90.4 A2R006Q01 mg l^-1

Magnesium 30 29 A2R006Q01 35.9 A2R006Q01 39.3 A2R006Q01 40.9 A2R006Q01 mg l^-1

TDS 30 479 A2R006Q01 578 A2R006Q01 627 A2R006Q01 713 A2R006Q01 mg l^-1

Conductivity 30 74.1 A2R006Q01 87.1 A2R006Q01 94.7 A2R006Q01 109 A2R006Q01 mS m^-1

(17) Checked A2R002Q01 (Bon Accord) for valid samples...

Quaternary D41B, dam station: A2R002Q01, Samples selected: 112 between 2001-01-01 and 2005-12-31.
[See summary of classification]

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 112 7.03 A2R002Q01 8.26 A2R002Q01 8.86 A2R002Q01 9.58 A2R002Q01 -log [H⁺]

Fluoride 112 0.1 A2R002Q01 0.25 A2R002Q01 0.28 A2R002Q01 0.39 A2R002Q01 mg l^-1

NO3(N) 112 0.02 A2R002Q01 0.575 A2R002Q01 1.443 A2R002Q01 3.297 A2R002Q01 mg l^-1

Sulphate 112 21.7 A2R002Q01 43.8 A2R002Q01 51.9 A2R002Q01 61.9 A2R002Q01 mg l^-1

Chloride 112 13.5 A2R002Q01 35.1 A2R002Q01 44.7 A2R002Q01 50.7 A2R002Q01 mg l^-1

Sodium 112 12.6 A2R002Q01 29.6 A2R002Q01 36.7 A2R002Q01 41.4 A2R002Q01 mg l^-1

Magnesium 112 8.5 A2R002Q01 19.3 A2R002Q01 23.3 A2R002Q01 26.8 A2R002Q01 mg l^-1

TDS 112 181 A2R002Q01 350 A2R002Q01 415 A2R002Q01 460 A2R002Q01 mg l^-1

Conductivity 112 26.3 A2R002Q01 48.7 A2R002Q01 57.9 A2R002Q01 64.5 A2R002Q01 mS m^-1

(18) Checked A2R009Q01 (Roodeplaat) for valid samples...

Quaternary D41B, dam station: A2R009Q01, Samples selected: 876 between 2001-01-01 and 2005-12-31.
[See summary of classification]

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 876 7.05 A2R009Q01 8.41 A2R009Q01 9.51 A2R009Q01 9.9 A2R009Q01 -log [H⁺]

Fluoride 876 0.19 A2R009Q01 0.27 A2R009Q01 0.31 A2R009Q01 0.4 A2R009Q01 mg l^-1

NO3(N) 876 0.02 A2R009Q01 0.561 A2R009Q01 1.394 A2R009Q01 2.717 A2R009Q01 mg l^-1

Sulphate 876 15.3 A2R009Q01 33.3 A2R009Q01 40.7 A2R009Q01 54.3 A2R009Q01 mg l^-1

Chloride 876 21.7 A2R009Q01 42.1 A2R009Q01 49.8 A2R009Q01 60.8 A2R009Q01 mg l^-1

Sodium 876 21 A2R009Q01 36.5 A2R009Q01 44.6 A2R009Q01 53 A2R009Q01 mg l^-1

Magnesium 876 11.1 A2R009Q01 15.1 A2R009Q01 17.2 A2R009Q01 23.4 A2R009Q01 mg l^-1

TDS 876 231 A2R009Q01 311 A2R009Q01 337 A2R009Q01 367 A2R009Q01 mg l^-1

Conductivity 876 31.9 A2R009Q01 46.1 A2R009Q01 49.7 A2R009Q01 57.4 A2R009Q01 mS m^-1

(19) Checked A2R013Q01 (Swartruggens) for valid samples...

Quaternary D41B, dam station: A2R013Q01, Samples selected: 59 between 2001-01-01 and 2005-12-31.
[See summary of classification]

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 59 7.18 A2R013Q01 7.76 A2R013Q01 7.95 A2R013Q01 8.13 A2R013Q01 -log [H⁺]

Fluoride 59 0.05 A2R013Q01 0.14 A2R013Q01 0.21 A2R013Q01 0.25 A2R013Q01 mg l^-1

NO3(N) 59 0.02 A2R013Q01 0.055 A2R013Q01 0.221 A2R013Q01 1.153 A2R013Q01 mg l^-1

Sulphate 59 2 A2R013Q01 6.7 A2R013Q01 9.8 A2R013Q01 17.9 A2R013Q01 mg l^-1

Chloride 59 2 A2R013Q01 5 A2R013Q01 6.5 A2R013Q01 9.8 A2R013Q01 mg l^-1

Sodium 59 3.3 A2R013Q01 4.8 A2R013Q01 6.9 A2R013Q01 9.9 A2R013Q01 mg l^-1

Magnesium 59 1.7 A2R013Q01 4.6 A2R013Q01 6.2 A2R013Q01 7.9 A2R013Q01 mg l^-1

TDS 59 48 A2R013Q01 75 A2R013Q01 100 A2R013Q01 142 A2R013Q01 mg l^-1

Conductivity 59 7.5 A2R013Q01 10.1 A2R013Q01 14.1 A2R013Q01 18.2 A2R013Q01 mS m^-1

(20) Checked A2R011Q01 (Koster) for valid samples...

Quaternary D41B, dam station: A2R011Q01, Samples selected: 157 between 2001-01-01 and 2005-12-31.
[See summary of classification]

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 157 6.83 A2R011Q01 7.8 A2R011Q01 7.98 A2R011Q01 8.35 A2R011Q01 -log [H⁺]

Fluoride 157 0.1 A2R011Q01 0.14 A2R011Q01 0.22 A2R011Q01 0.29 A2R011Q01 mg l^-1

NO3(N) 157 0.02 A2R011Q01 0.099 A2R011Q01 0.327 A2R011Q01 0.515 A2R011Q01 mg l^-1

Sulphate 157 2 A2R011Q01 8.5 A2R011Q01 13.3 A2R011Q01 24.5 A2R011Q01 mg l^-1

Chloride 157 2.5 A2R011Q01 5 A2R011Q01 8.1 A2R011Q01 11.5 A2R011Q01 mg l^-1

Sodium 157 2.5 A2R011Q01 4.8 A2R011Q01 7.3 A2R011Q01 10.3 A2R011Q01 mg l^-1

Magnesium 157 4.1 A2R011Q01 6 A2R011Q01 8.3 A2R011Q01 10.3 A2R011Q01 mg l^-1

TDS 157 68 A2R011Q01 94 A2R011Q01 129 A2R011Q01 151 A2R011Q01 mg l^-1

Conductivity 157 9.3 A2R011Q01 13.8 A2R011Q01 18.4 A2R011Q01 19.7 A2R011Q01 mS m^-1

(21) Checked A2R001Q01 (Hartbeespoort) for valid samples...

Quaternary D41B, dam station: A2R001Q01, Samples selected: 905 between 2001-01-01 and 2005-12-31.
[See summary of classification]

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 905 7.01 A2R001Q01 8.25 A2R001Q01 9 A2R001Q01 9.71 A2R001Q01 -log [H⁺]

Fluoride 905 0.05 A2R001Q01 0.28 A2R001Q01 0.31 A2R001Q01 0.43 A2R001Q01 mg l^-1

NO3(N) 905 0.02 A2R001Q01 1.001 A2R001Q01 1.853 A2R001Q01 3.486 A2R001Q01 mg l^-1

Sulphate 905 28.9 A2R001Q01 50.3 A2R001Q01 57.5 A2R001Q01 91.4 A2R001Q01 mg l^-1

Chloride 905 32.1 A2R001Q01 50.1 A2R001Q01 57 A2R001Q01 67.1 A2R001Q01 mg l^-1

Sodium 905 27.1 A2R001Q01 42.4 A2R001Q01 49.8 A2R001Q01 60.4 A2R001Q01 mg l^-1

Magnesium 905 10.7 A2R001Q01 16.1 A2R001Q01 18.4 A2R001Q01 26.4 A2R001Q01 mg l^-1

TDS 905 265 A2R001Q01 342 A2R001Q01 373 A2R001Q01 445 A2R001Q01 mg l^-1

Conductivity 905 41.8 A2R001Q01 51.2 A2R001Q01 56.3 A2R001Q01 60.6 A2R001Q01 mS m^-1

(22) Checked A2R003Q01 (Olifantsnek) for valid samples...

Quaternary D41B, dam station: A2R003Q01, Samples selected: 18 between 2001-01-01 and 2005-12-31.
[See summary of classification]

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 18 7.37 A2R003Q01 8.15 A2R003Q01 8.28 A2R003Q01 8.32 A2R003Q01 -log [H⁺]

Fluoride 18 0.18 A2R003Q01 0.21 A2R003Q01 0.26 A2R003Q01 0.28 A2R003Q01 mg l^-1

NO3(N) 18 0.02 A2R003Q01 0.172 A2R003Q01 0.276 A2R003Q01 0.392 A2R003Q01 mg l^-1

Sulphate 18 13.5 A2R003Q01 25.8 A2R003Q01 33.3 A2R003Q01 38.3 A2R003Q01 mg l^-1

Chloride 18 5 A2R003Q01 5 A2R003Q01 5.8 A2R003Q01 9.5 A2R003Q01 mg l^-1

Sodium 18 3.9 A2R003Q01 9.5 A2R003Q01 11.6 A2R003Q01 14.2 A2R003Q01 mg l^-1

Magnesium 18 8.1 A2R003Q01 16.4 A2R003Q01 20.6 A2R003Q01 23.3 A2R003Q01 mg l^-1

TDS 18 133 A2R003Q01 208 A2R003Q01 248 A2R003Q01 274 A2R003Q01 mg l^-1

Conductivity 18 18.5 A2R003Q01 28 A2R003Q01 33.7 A2R003Q01 36.7 A2R003Q01 mS m^-1

(23) Checked A2R005Q01 (Buffelspoort) for valid samples...

Quaternary D41B, dam station: A2R005Q01, Samples selected: 10 between 2001-01-01 and 2005-12-31.
[See summary of classification]

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 10 7.3 A2R005Q01 7.59 A2R005Q01 7.75 A2R005Q01 7.77 A2R005Q01 -log [H⁺]

Fluoride 10 0.1 A2R005Q01 0.13 A2R005Q01 0.14 A2R005Q01 0.17 A2R005Q01 mg l^-1

NO3(N) 10 0.02 A2R005Q01 0.02 A2R005Q01 0.055 A2R005Q01 0.101 A2R005Q01 mg l^-1

Sulphate 10 4.5 A2R005Q01 5.5 A2R005Q01 9.4 A2R005Q01 9.8 A2R005Q01 mg l^-1

Chloride 10 2.5 A2R005Q01 5 A2R005Q01 5 A2R005Q01 5 A2R005Q01 mg l^-1

Sodium 10 1 A2R005Q01 2.3 A2R005Q01 3.1 A2R005Q01 3.4 A2R005Q01 mg l^-1

Magnesium 10 2.6 A2R005Q01 3.4 A2R005Q01 4 A2R005Q01 4.1 A2R005Q01 mg l^-1

TDS 10 37 A2R005Q01 48 A2R005Q01 51 A2R005Q01 56 A2R005Q01 mg l^-1

Conductivity 10 6.2 A2R005Q01 7.1 A2R005Q01 7.6 A2R005Q01 7.7 A2R005Q01 mS m^-1

(24) Checked D4R003Q01 (Disaneng) for valid samples...

Quaternary D41B, dam station: D4R003Q01, Samples selected: 228 between 2001-01-01 and 2005-12-31.
[See summary of classification]

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 228 7.72 D4R003Q01 8.71 D4R003Q01 8.96 D4R003Q01 9.17 D4R003Q01 -log [H⁺]

Fluoride 228 0.1 D4R003Q01 0.46 D4R003Q01 0.58 D4R003Q01 0.65 D4R003Q01 mg l^-1

NO3(N) 228 0.02 D4R003Q01 0.055 D4R003Q01 0.086 D4R003Q01 4.204 D4R003Q01 mg l^-1

Sulphate 228 10.8 D4R003Q01 21.9 D4R003Q01 27.4 D4R003Q01 40.4 D4R003Q01 mg l^-1

Chloride 228 33.8 D4R003Q01 55.5 D4R003Q01 73.1 D4R003Q01 90.7 D4R003Q01 mg l^-1

Sodium 228 29.2 D4R003Q01 55.3 D4R003Q01 70.6 D4R003Q01 86.1 D4R003Q01 mg l^-1

Magnesium 228 17.3 D4R003Q01 42.7 D4R003Q01 50.8 D4R003Q01 57 D4R003Q01 mg l^-1

TDS 228 344 D4R003Q01 514 D4R003Q01 599 D4R003Q01 724 D4R003Q01 mg l^-1

Conductivity 228 46.4 D4R003Q01 68.1 D4R003Q01 78.1 D4R003Q01 96.1 D4R003Q01 mS m^-1

(25) Checked D4R004Q01 (Modimola) for valid samples...

Quaternary D41B, dam station: D4R004Q01, Samples selected: 228 between 2001-01-01 and 2005-12-31.
[See summary of classification]

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 228 7.79 D4R004Q01 8.95 D4R004Q01 9.1 D4R004Q01 9.31 D4R004Q01 -log [H⁺]

Fluoride 228 0.1 D4R004Q01 0.36 D4R004Q01 0.4 D4R004Q01 0.54 D4R004Q01 mg l^-1

NO3(N) 228 0.02 D4R004Q01 0.051 D4R004Q01 0.099 D4R004Q01 0.531 D4R004Q01 mg l^-1

Sulphate 228 12.5 D4R004Q01 24.6 D4R004Q01 32.2 D4R004Q01 64.5 D4R004Q01 mg l^-1

Chloride 228 36 D4R004Q01 56.1 D4R004Q01 65.9 D4R004Q01 74.5 D4R004Q01 mg l^-1

Sodium 228 34.7 D4R004Q01 54.2 D4R004Q01 66.4 D4R004Q01 76.2 D4R004Q01 mg l^-1

Magnesium 228 13.7 D4R004Q01 51.2 D4R004Q01 57.5 D4R004Q01 64.4 D4R004Q01 mg l^-1

TDS 228 380 D4R004Q01 553 D4R004Q01 618 D4R004Q01 685 D4R004Q01 mg l^-1

Conductivity 228 50.1 D4R004Q01 71 D4R004Q01 77.6 D4R004Q01 85 D4R004Q01 mS m^-1

(26) Checked D4H026Q01 (Cookes Lake) for valid samples...

Quaternary D41B, dam station: D4H026Q01, Samples selected: 36 between 2001-01-01 and 2005-12-31.
[See summary of classification]

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 36 7.42 D4H026Q01 8.17 D4H026Q01 8.55 D4H026Q01 8.68 D4H026Q01 -log [H⁺]

Fluoride 36 0.1 D4H026Q01 0.18 D4H026Q01 0.22 D4H026Q01 0.25 D4H026Q01 mg l^-1

NO3(N) 36 0.02 D4H026Q01 0.055 D4H026Q01 1.222 D4H026Q01 5.698 D4H026Q01 mg l^-1

Sulphate 36 16.3 D4H026Q01 30.6 D4H026Q01 44.1 D4H026Q01 49.9 D4H026Q01 mg l^-1

Chloride 36 17 D4H026Q01 46.1 D4H026Q01 63.3 D4H026Q01 73.4 D4H026Q01 mg l^-1

Sodium 36 12.1 D4H026Q01 35.5 D4H026Q01 44.5 D4H026Q01 64.4 D4H026Q01 mg l^-1

Magnesium 36 21.9 D4H026Q01 45.5 D4H026Q01 56 D4H026Q01 60.5 D4H026Q01 mg l^-1

TDS 36 288 D4H026Q01 519 D4H026Q01 609 D4H026Q01 637 D4H026Q01 mg l^-1

Conductivity 36 39.1 D4H026Q01 68.1 D4H026Q01 77.4 D4H026Q01 81.8 D4H026Q01 mS m^-1

(27) Checked D4H037Q01 (Lotlamoreng) for valid samples...

Quaternary D41B, dam station: D4H037Q01, Samples selected: 133 between 2001-01-01 and 2005-12-31.
[See summary of classification]

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 133 7.75 D4H037Q01 8.5 D4H037Q01 8.68 D4H037Q01 8.74 D4H037Q01 -log [H⁺]

Fluoride 133 0.1 D4H037Q01 0.22 D4H037Q01 0.26 D4H037Q01 0.61 D4H037Q01 mg l^-1

NO3(N) 133 0.02 D4H037Q01 0.055 D4H037Q01 0.205 D4H037Q01 0.863 D4H037Q01 mg l^-1

Sulphate 133 7.9 D4H037Q01 28.6 D4H037Q01 36 D4H037Q01 47.5 D4H037Q01 mg l^-1

Chloride 133 13.8 D4H037Q01 63.9 D4H037Q01 85.5 D4H037Q01 95.4 D4H037Q01 mg l^-1

Sodium 133 13.7 D4H037Q01 46.8 D4H037Q01 58.7 D4H037Q01 69.8 D4H037Q01 mg l^-1

Magnesium 133 11.7 D4H037Q01 49.9 D4H037Q01 61.7 D4H037Q01 68.8 D4H037Q01 mg l^-1

TDS 133 195 D4H037Q01 575 D4H037Q01 687 D4H037Q01 729 D4H037Q01 mg l^-1

Conductivity 133 30 D4H037Q01 75.8 D4H037Q01 87.7 D4H037Q01 93.1 D4H037Q01 mS m^-1

(28) Checked A2R004Q01 (Rietvlei) for valid samples...

Quaternary D41B, dam station: A2R004Q01, Samples selected: 116 between 2001-01-01 and 2005-12-31.
[See summary of classification]

Variable n
samples Minimum recorded
at Median recorded
at 90th
percentile recorded
at Maximum recorded
at unit

pH 116 7.25 A2R004Q01 8.15 A2R004Q01 9 A2R004Q01 9.55 A2R004Q01 -log [H⁺]

Fluoride 116 0.2 A2R004Q01 0.28 A2R004Q01 0.32 A2R004Q01 0.41 A2R004Q01 mg l^-1

NO3(N) 116 0.02 A2R004Q01 1.112 A2R004Q01 1.865 A2R004Q01 4.789 A2R004Q01 mg l^-1

Sulphate 116 22.2 A2R004Q01 50.9 A2R004Q01 61 A2R004Q01 78.2 A2R004Q01 mg l^-1

Chloride 116 27.9 A2R004Q01 54.2 A2R004Q01 66.5 A2R004Q01 70.5 A2R004Q01 mg l^-1

Sodium 116 22.9 A2R004Q01 46.6 A2R004Q01 57.3 A2R004Q01 65.7 A2R004Q01 mg l^-1

Magnesium 116 12.4 A2R004Q01 15 A2R004Q01 16.7 A2R004Q01 18.1 A2R004Q01 mg l^-1

TDS 116 271 A2R004Q01 361 A2R004Q01 409 A2R004Q01 424 A2R004Q01 mg l^-1

Conductivity 116 37.7 A2R004Q01 54.7 A2R004Q01 61.9 A2R004Q01 64.5 A2R004Q01 mS m^-1

(29) Checked A2R004Q01 (Rietvlei) for valid samples...

Summary of dam (or lake) classifications, with classification variables, if any. Click on a dam station to go to the classification data.

Dam
station number class Class I
variable Class II
variable Class III
variable

A2R008Q01 6 0

A2R012Q01 125 1 pH TDS EC

A2R014Q01 34 0

A2R014Q01 34 0

A2R014Q01 34 0

A2R014Q01 34 0

A2R015Q01 28 1 Cl Mg TDS EC

A2R016Q01 99 1 TDS EC

A3R003Q01 59 0

A3R001Q01 63 0

A2R007Q01 184 0

A2R006Q01 30 2 Cl Mg TDS EC pH

A2R002Q01 112 0

A2R009Q01 876 2 pH

A2R013Q01 59 0

A2R011Q01 157 0

A2R001Q01 905 1 pH

A2R003Q01 18 0

A2R005Q01 10 0

D4R003Q01 228 1 Mg TDS EC

D4R004Q01 228 1 pH Mg TDS EC

D4H026Q01 36 1 Mg TDS EC

D4H037Q01 133 1 Mg TDS EC

A2R004Q01 116 1 pH

A2R004Q01 116 1 pH

Finished calculations for Crocodile (West) and Marico WMA at 2006-12-18 - 15:45:15

[Chemical index page] [IWQS home page]

Station	total n samples	description	map code
A2H037Q01	119	Crocodile River at Buffelshoek	56
A2H116Q01	dam	Paul Hugo Dam on Crocodile River: Down S	none

Station	total n samples	description	map code
A3H029Q01	dam	Marico-Bosveld Dam on Great Marico Riv:	none
A3H028Q01	dam	Marico-Bosveld Dam on Great Marico River	none

Station	total n samples	description	map code
A3H015Q01	eye	Doornfontein Eye at Doornfontein	none
A3H013Q01	eye	XXkraal Eye at XXkraal	none
A3H014Q01	eye	Rietpoort Eye at Rietpoort	none
A3H019Q01	canal	Malmanieloop Right Canal at Doornplaat	none
A3H026Q01	eye	Doornplaat Eye at Doornplaat	none
A3H018Q01	73	Malmanieloop at Naauwpoort	57
A3H023Q01	eye	Malmanie Eye at Eye of Malmanie	none
A3H020Q01	eye	Kareebosch Eye at Kareebosch	none

Station	total n samples	description	map code
A3H031Q01	dam	Little Marico Poort Dam on Lit Marico Ri	none
A3H030Q01	dam	Little Marico Poort Dam on L Marico Riv:	none
A3H024Q01	9	at Hazia Zeerust Drive-in on Klein Maric	58
A3H041Q01	33	Karee Spruit at Zeerust Road Bridge-D-S	59
A3H012Q01	eye	Klaarstroom Eye at Klaarstroom	none
A3H011Q01	eye	Vergenoegd Eye at Vergenoegd	none
A3H022Q01	eye	Malmanieloop Lower Eye at Paardenvallei	none
A3H021Q01	eye	Malmanieloop Upper Eye at Paardenvallei	none
A3H010Q01	eye	Stinkhoutboom Eye at Stinkhoutboom	none
A3H009Q01	eye	Buffelshoek Eye at Buffelshoek	none
A3H017Q01	eye	Rhenosterfontein Eye at Rhenosterfontein	none

Station	total n samples	description	map code
A3H033Q01	dam	Kromellenboog Dam on Little Marico River	none
A3H031Q01	dam	Little Marico Poort Dam on Lit Marico Ri	none
A3H030Q01	dam	Little Marico Poort Dam on L Marico Riv:	none
A3H016Q01	54	Wilgeboom Spruit at Wilgeboomspruit	60

Station	total n samples	description	map code
A3H032Q01	dam	Kromellenboog Dam on Litt..Marico Riv: D	none
A3H033Q01	dam	Kromellenboog Dam on Little Marico River	none
A3H029Q01	dam	Marico-Bosveld Dam on Great Marico Riv:	none
A3H028Q01	dam	Marico-Bosveld Dam on Great Marico River	none

Station	total n samples	description	map code
A3H007Q01	173	at Eerstepoort on Maricorivier	61
A3H034Q01	dam	Molatedi Dam on Great Marico River: Outl	none
A3H039Q01	dam	Naaupoort at Moletedi Dam Pipeline From	none

Station	total n samples	description	map code
A3H040Q01	410	Marico River at Mooiplaats-Tzwasa Weir A	62
A3H007Q01	173	at Eerstepoort on Maricorivier	63
A3H034Q01	dam	Molatedi Dam on Great Marico River: Outl	none
A3H039Q01	dam	Naaupoort at Moletedi Dam Pipeline From	none

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	184	7.26	A3H040Q01	8.31	A3H040Q01	8.48	A3H040Q01	8.7	A3H040Q01	-log [H⁺]
Fluoride	184	0.19	A3H040Q01	0.28	A3H040Q01	0.47	A3H040Q01	0.62	A3H040Q01	mg l^-1
NO3(N)	184	0.02	A3H040Q01	0.049	A3H040Q01	0.105	A3H040Q01	2.347	A3H040Q01	mg l^-1
Sulphate	184	7.9	A3H040Q01	15.9	A3H040Q01	21.5	A3H040Q01	35.7	A3H040Q01	mg l^-1
Chloride	184	5	A3H040Q01	5	A3H040Q01	12	A3H040Q01	16.6	A3H040Q01	mg l^-1
Sodium	184	5.3	A3H040Q01	7.7	A3H040Q01	12.7	A3H040Q01	19.4	A3H040Q01	mg l^-1
Magnesium	184	10.7	A3H040Q01	21.8	A3H040Q01	32.5	A3H040Q01	43.1	A3H040Q01	mg l^-1
TDS	184	159	A3H040Q01	279	A3H040Q01	379	A3H040Q01	454	A3H040Q01	mg l^-1
Conductivity	184	22.1	A3H040Q01	35.5	A3H040Q01	46.5	A3H040Q01	55.5	A3H040Q01	mS m^-1

Station	total n samples	description	map code
B2H010Q01	dam	Bronkhorstspruit Dam on Bronkh..Spr: Ret	none
B2H004Q01	817	Os Spruit at Boschkop	64
B2H006Q01	765	Os Spruit at Witpoort	65
B2H005Q01	556	Os Spruit at Knoppiesfontein	66

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	221	6.81	B2H006Q01	8.02	B2H006Q01	8.28	B2H004Q01	8.93	B2H004Q01	-log [H⁺]
Fluoride	221	0.05	B2H006Q01	0.17	B2H006Q01	0.22	B2H006Q01	1.11	B2H004Q01	mg l^-1
NO3(N)	221	0.02	B2H004Q01	0.233	B2H004Q01	0.537	B2H004Q01	0.759	B2H004Q01	mg l^-1
Sulphate	221	2	B2H006Q01	8.6	B2H004Q01	16.4	B2H004Q01	92.2	B2H004Q01	mg l^-1
Chloride	221	2	B2H006Q01	5	B2H006Q01	12.1	B2H004Q01	72.5	B2H004Q01	mg l^-1
Sodium	221	3.6	B2H006Q01	7	B2H004Q01	9.3	B2H004Q01	77.4	B2H004Q01	mg l^-1
Magnesium	221	4.5	B2H006Q01	11.9	B2H004Q01	15.4	B2H004Q01	22	B2H004Q01	mg l^-1
TDS	221	64	B2H006Q01	165	B2H004Q01	206	B2H004Q01	485	B2H004Q01	mg l^-1
Conductivity	221	9	B2H006Q01	22.2	B2H004Q01	27.4	B2H004Q01	73.5	B2H004Q01	mS m^-1

Station	total n samples	description	map code
B2H003Q01	543	Bronkhorst Spruit at Bronkhorstspruit	67
B2H010Q01	dam	Bronkhorstspruit Dam on Bronkh..Spr: Ret	none

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	130	7.53	B2H003Q01	8.17	B2H003Q01	8.35	B2H003Q01	8.55	B2H003Q01	-log [H⁺]
Fluoride	130	0.1	B2H003Q01	0.25	B2H003Q01	0.33	B2H003Q01	0.42	B2H003Q01	mg l^-1
NO3(N)	130	0.02	B2H003Q01	0.122	B2H003Q01	0.368	B2H003Q01	0.86	B2H003Q01	mg l^-1
Sulphate	130	9.6	B2H003Q01	15.5	B2H003Q01	22.6	B2H003Q01	29.9	B2H003Q01	mg l^-1
Chloride	130	8	B2H003Q01	13.7	B2H003Q01	16.9	B2H003Q01	21.2	B2H003Q01	mg l^-1
Sodium	130	6.6	B2H003Q01	11.7	B2H003Q01	16.1	B2H003Q01	22.4	B2H003Q01	mg l^-1
Magnesium	130	10.3	B2H003Q01	15.7	B2H003Q01	20	B2H003Q01	21	B2H003Q01	mg l^-1
TDS	130	139	B2H003Q01	224	B2H003Q01	274	B2H003Q01	302	B2H003Q01	mg l^-1
Conductivity	130	19.9	B2H003Q01	30.6	B2H003Q01	37	B2H003Q01	40.5	B2H003Q01	mS m^-1

Station	total n samples	description	map code
B3H014Q01	dam	Rust De Winter Dam on Elands River: Down	none
B3H013Q01	dam	Rust De Winter Dam on Elands River: Left	none
B3H009Q01	dam	Elands River Up-S Rust De Winter Dam in	none
B3H003Q01	14	Elands River at Kameelrivier	68

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	5	8.32	B3H003Q01	8.36	B3H003Q01	8.71	B3H003Q01	8.78	B3H003Q01	-log [H⁺]
Fluoride	5	0.32	B3H003Q01	0.36	B3H003Q01	0.46	B3H003Q01	0.47	B3H003Q01	mg l^-1
NO3(N)	5	0.055	B3H003Q01	0.055	B3H003Q01	0.055	B3H003Q01	0.055	B3H003Q01	mg l^-1
Sulphate	5	6.2	B3H003Q01	10.7	B3H003Q01	20.2	B3H003Q01	25.7	B3H003Q01	mg l^-1
Chloride	5	66	B3H003Q01	93.6	B3H003Q01	122.4	B3H003Q01	126.6	B3H003Q01	mg l^-1
Sodium	5	68.4	B3H003Q01	85.3	B3H003Q01	116.6	B3H003Q01	120.4	B3H003Q01	mg l^-1
Magnesium	5	33.3	B3H003Q01	42.9	B3H003Q01	47.9	B3H003Q01	48.1	B3H003Q01	mg l^-1
TDS	5	534	B3H003Q01	673	B3H003Q01	714	B3H003Q01	729	B3H003Q01	mg l^-1
Conductivity	5	70.7	B3H003Q01	87.7	B3H003Q01	93.6	B3H003Q01	95.2	B3H003Q01	mS m^-1

Station	total n samples	description	map code
D4H016Q01	eye	Welgedacht Eye at Welgedacht	none
A3H020Q01	coord error	Drainage region error for Kareebosch Eye at Kareebosch: Secondary=D4 but station=A3	!
A3H020Q01	coord error	Kareebosch Eye at Kareebosch	none
D4H013Q01	90	Molopo River at Rietvallei	69
D4H017Q01	eye	Olivendraai Eye at Olivendraai	none
D4H036Q01	canal	Molopo River: Canal at Ratshidi From Mod	none
D4H012Q01	sewage	Mmbatho Sewage Effluent	none
D4H026Q01	70	Cookes Lake Molopo River at Mafikeng	70
D4H027Q01	sewage	Mafikeng Sewage Treatment Works	none
D4H037Q01	dam	Lotlamoreng Dam on Molopo River: near DA	none
D4H014Q01	eye	Molopo Eye at Mallepoos Oog	none
D4H004Q01	pipe	Grootfontein Eye Pipeline at Valleifon	none
D4H019Q01	eye	Polfontein Eye at Matlabes Reserve	none

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	57	7.42	D4H026Q01	8.28	D4H013Q01	8.51	D4H026Q01	8.68	D4H026Q01	-log [H⁺]
Fluoride	57	0.1	D4H026Q01	0.16	D4H013Q01	0.22	D4H026Q01	0.25	D4H026Q01	mg l^-1
NO3(N)	57	0.02	D4H026Q01	0.148	D4H026Q01	0.708	D4H026Q01	5.698	D4H026Q01	mg l^-1
Sulphate	57	2	D4H013Q01	20.5	D4H026Q01	38.4	D4H026Q01	49.9	D4H026Q01	mg l^-1
Chloride	57	5	D4H013Q01	30.8	D4H026Q01	60.9	D4H026Q01	73.4	D4H026Q01	mg l^-1
Sodium	57	3.2	D4H013Q01	20	D4H026Q01	43.2	D4H026Q01	64.4	D4H026Q01	mg l^-1
Magnesium	57	21.9	D4H026Q01	41.8	D4H013Q01	52.4	D4H026Q01	60.5	D4H026Q01	mg l^-1
TDS	57	288	D4H026Q01	529	D4H013Q01	595	D4H026Q01	637	D4H026Q01	mg l^-1
Conductivity	57	39.1	D4H026Q01	64.1	D4H026Q01	75.4	D4H026Q01	81.8	D4H026Q01	mS m^-1

Station	total n samples	description	map code
C2H045Q01	coord error	Drainage region error for West Driefontein Canal South at Vlakplaa: Secondary=D4 but station=C2	!
C2H045Q01	coord error	West Driefontein Canal South at Vlakplaa	none

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	6	6.89	A2R008Q01	7.06	A2R008Q01	7.45	A2R008Q01	7.63	A2R008Q01	-log [H⁺]
Fluoride	6	0.1	A2R008Q01	0.18	A2R008Q01	0.19	A2R008Q01	0.19	A2R008Q01	mg l^-1
NO3(N)	6	0.02	A2R008Q01	0.045	A2R008Q01	0.066	A2R008Q01	0.078	A2R008Q01	mg l^-1
Sulphate	6	2	A2R008Q01	3	A2R008Q01	8.6	A2R008Q01	9.8	A2R008Q01	mg l^-1
Chloride	6	5	A2R008Q01	5	A2R008Q01	5.7	A2R008Q01	6.7	A2R008Q01	mg l^-1
Sodium	6	3.1	A2R008Q01	3.6	A2R008Q01	4.4	A2R008Q01	4.7	A2R008Q01	mg l^-1
Magnesium	6	1.6	A2R008Q01	1.7	A2R008Q01	2.2	A2R008Q01	2.5	A2R008Q01	mg l^-1
TDS	6	36	A2R008Q01	42	A2R008Q01	46	A2R008Q01	47	A2R008Q01	mg l^-1
Conductivity	6	6.2	A2R008Q01	6.7	A2R008Q01	7.1	A2R008Q01	7.1	A2R008Q01	mS m^-1

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	125	5.69	A2R012Q01	8.75	A2R012Q01	9.21	A2R012Q01	9.64	A2R012Q01	-log [H⁺]
Fluoride	125	0.35	A2R012Q01	0.48	A2R012Q01	0.55	A2R012Q01	0.62	A2R012Q01	mg l^-1
NO3(N)	125	0.02	A2R012Q01	0.053	A2R012Q01	0.137	A2R012Q01	1.957	A2R012Q01	mg l^-1
Sulphate	125	27.4	A2R012Q01	52.6	A2R012Q01	67.2	A2R012Q01	86.8	A2R012Q01	mg l^-1
Chloride	125	32.4	A2R012Q01	58.1	A2R012Q01	75.4	A2R012Q01	85	A2R012Q01	mg l^-1
Sodium	125	27.4	A2R012Q01	60	A2R012Q01	81.8	A2R012Q01	91.9	A2R012Q01	mg l^-1
Magnesium	125	11.1	A2R012Q01	18.5	A2R012Q01	21	A2R012Q01	28.8	A2R012Q01	mg l^-1
TDS	125	264	A2R012Q01	451	A2R012Q01	552	A2R012Q01	593	A2R012Q01	mg l^-1
Conductivity	125	39.1	A2R012Q01	62.9	A2R012Q01	75.3	A2R012Q01	81.9	A2R012Q01	mS m^-1

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	34	7.82	A2R014Q01	8.32	A2R014Q01	8.43	A2R014Q01	8.53	A2R014Q01	-log [H⁺]
Fluoride	34	0.2	A2R014Q01	0.42	A2R014Q01	0.47	A2R014Q01	0.5	A2R014Q01	mg l^-1
NO3(N)	34	0.02	A2R014Q01	0.05	A2R014Q01	0.156	A2R014Q01	0.479	A2R014Q01	mg l^-1
Sulphate	34	31.3	A2R014Q01	47.3	A2R014Q01	61.5	A2R014Q01	82.4	A2R014Q01	mg l^-1
Chloride	34	23.3	A2R014Q01	48.8	A2R014Q01	59.4	A2R014Q01	92.6	A2R014Q01	mg l^-1
Sodium	34	17.2	A2R014Q01	31.9	A2R014Q01	38.4	A2R014Q01	61.5	A2R014Q01	mg l^-1
Magnesium	34	9.6	A2R014Q01	21.1	A2R014Q01	26	A2R014Q01	28.7	A2R014Q01	mg l^-1
TDS	34	205	A2R014Q01	331	A2R014Q01	382	A2R014Q01	473	A2R014Q01	mg l^-1
Conductivity	34	32.1	A2R014Q01	50.8	A2R014Q01	56.5	A2R014Q01	70.3	A2R014Q01	mS m^-1

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	28	7.47	A2R015Q01	8.34	A2R015Q01	8.84	A2R015Q01	9.08	A2R015Q01	-log [H⁺]
Fluoride	28	0.22	A2R015Q01	0.36	A2R015Q01	0.43	A2R015Q01	0.47	A2R015Q01	mg l^-1
NO3(N)	28	0.02	A2R015Q01	0.058	A2R015Q01	0.572	A2R015Q01	2.242	A2R015Q01	mg l^-1
Sulphate	28	62.1	A2R015Q01	86	A2R015Q01	101.4	A2R015Q01	146.6	A2R015Q01	mg l^-1
Chloride	28	52.2	A2R015Q01	80.5	A2R015Q01	104.1	A2R015Q01	180.4	A2R015Q01	mg l^-1
Sodium	28	39.7	A2R015Q01	61.2	A2R015Q01	82.2	A2R015Q01	95.5	A2R015Q01	mg l^-1
Magnesium	28	20.6	A2R015Q01	29.7	A2R015Q01	33.7	A2R015Q01	36	A2R015Q01	mg l^-1
TDS	28	340	A2R015Q01	463	A2R015Q01	564	A2R015Q01	701	A2R015Q01	mg l^-1
Conductivity	28	52.5	A2R015Q01	70.5	A2R015Q01	83.3	A2R015Q01	108.2	A2R015Q01	mS m^-1

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	99	7.35	A2R016Q01	8.21	A2R016Q01	8.69	A2R016Q01	9.04	A2R016Q01	-log [H⁺]
Fluoride	99	0.21	A2R016Q01	0.31	A2R016Q01	0.36	A2R016Q01	0.46	A2R016Q01	mg l^-1
NO3(N)	99	0.02	A2R016Q01	2.284	A2R016Q01	4.419	A2R016Q01	9.611	A2R016Q01	mg l^-1
Sulphate	99	35.2	A2R016Q01	60.5	A2R016Q01	71.7	A2R016Q01	83.6	A2R016Q01	mg l^-1
Chloride	99	33.6	A2R016Q01	63.3	A2R016Q01	77.1	A2R016Q01	86.3	A2R016Q01	mg l^-1
Sodium	99	30.2	A2R016Q01	71.9	A2R016Q01	91.6	A2R016Q01	103.4	A2R016Q01	mg l^-1
Magnesium	99	12.3	A2R016Q01	18.3	A2R016Q01	21.2	A2R016Q01	33.9	A2R016Q01	mg l^-1
TDS	99	297	A2R016Q01	514	A2R016Q01	573	A2R016Q01	607	A2R016Q01	mg l^-1
Conductivity	99	44.1	A2R016Q01	70	A2R016Q01	79.1	A2R016Q01	85.7	A2R016Q01	mS m^-1

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	59	7.79	A3R003Q01	8.15	A3R003Q01	8.34	A3R003Q01	8.71	A3R003Q01	-log [H⁺]
Fluoride	59	0.21	A3R003Q01	0.41	A3R003Q01	0.55	A3R003Q01	0.8	A3R003Q01	mg l^-1
NO3(N)	59	0.02	A3R003Q01	0.054	A3R003Q01	0.136	A3R003Q01	0.846	A3R003Q01	mg l^-1
Sulphate	59	4.3	A3R003Q01	46.4	A3R003Q01	77	A3R003Q01	84.8	A3R003Q01	mg l^-1
Chloride	59	5	A3R003Q01	10.9	A3R003Q01	15.5	A3R003Q01	18.5	A3R003Q01	mg l^-1
Sodium	59	5	A3R003Q01	8.3	A3R003Q01	12.5	A3R003Q01	16	A3R003Q01	mg l^-1
Magnesium	59	6.7	A3R003Q01	16.8	A3R003Q01	26.3	A3R003Q01	31.5	A3R003Q01	mg l^-1
TDS	59	115	A3R003Q01	249	A3R003Q01	343	A3R003Q01	391	A3R003Q01	mg l^-1
Conductivity	59	16	A3R003Q01	34.5	A3R003Q01	47.5	A3R003Q01	54.5	A3R003Q01	mS m^-1

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	63	7.68	A3R001Q01	8.28	A3R001Q01	8.47	A3R001Q01	8.68	A3R001Q01	-log [H⁺]
Fluoride	63	0.15	A3R001Q01	0.22	A3R001Q01	0.27	A3R001Q01	0.34	A3R001Q01	mg l^-1
NO3(N)	63	0.02	A3R001Q01	0.055	A3R001Q01	0.155	A3R001Q01	0.391	A3R001Q01	mg l^-1
Sulphate	63	3	A3R001Q01	7.6	A3R001Q01	11.6	A3R001Q01	22.8	A3R001Q01	mg l^-1
Chloride	63	2.5	A3R001Q01	5	A3R001Q01	6.7	A3R001Q01	7.9	A3R001Q01	mg l^-1
Sodium	63	3.1	A3R001Q01	5.4	A3R001Q01	7.2	A3R001Q01	8.3	A3R001Q01	mg l^-1
Magnesium	63	8.9	A3R001Q01	17.4	A3R001Q01	21.6	A3R001Q01	23.6	A3R001Q01	mg l^-1
TDS	63	125	A3R001Q01	223	A3R001Q01	269	A3R001Q01	299	A3R001Q01	mg l^-1
Conductivity	63	16.7	A3R001Q01	28.9	A3R001Q01	33.6	A3R001Q01	38.1	A3R001Q01	mS m^-1

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	184	7.02	A2R007Q01	7.93	A2R007Q01	8.09	A2R007Q01	8.23	A2R007Q01	-log [H⁺]
Fluoride	184	0.1	A2R007Q01	0.17	A2R007Q01	0.22	A2R007Q01	0.28	A2R007Q01	mg l^-1
NO3(N)	184	0.02	A2R007Q01	0.065	A2R007Q01	0.2	A2R007Q01	0.368	A2R007Q01	mg l^-1
Sulphate	184	2	A2R007Q01	9.3	A2R007Q01	13.7	A2R007Q01	19.7	A2R007Q01	mg l^-1
Chloride	184	5	A2R007Q01	6.1	A2R007Q01	9.1	A2R007Q01	11	A2R007Q01	mg l^-1
Sodium	184	4.5	A2R007Q01	6.9	A2R007Q01	8	A2R007Q01	9.6	A2R007Q01	mg l^-1
Magnesium	184	4.9	A2R007Q01	7.9	A2R007Q01	9.2	A2R007Q01	10.4	A2R007Q01	mg l^-1
TDS	184	96	A2R007Q01	122	A2R007Q01	141	A2R007Q01	154	A2R007Q01	mg l^-1
Conductivity	184	12.5	A2R007Q01	17.6	A2R007Q01	19.8	A2R007Q01	21	A2R007Q01	mS m^-1

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	30	7.36	A2R006Q01	9.11	A2R006Q01	9.7	A2R006Q01	9.9	A2R006Q01	-log [H⁺]
Fluoride	30	0.1	A2R006Q01	0.2	A2R006Q01	0.26	A2R006Q01	0.28	A2R006Q01	mg l^-1
NO3(N)	30	0.02	A2R006Q01	1.152	A2R006Q01	3.175	A2R006Q01	5.25	A2R006Q01	mg l^-1
Sulphate	30	76.5	A2R006Q01	96.1	A2R006Q01	110.2	A2R006Q01	122.4	A2R006Q01	mg l^-1
Chloride	30	96.5	A2R006Q01	126.4	A2R006Q01	157.6	A2R006Q01	185.9	A2R006Q01	mg l^-1
Sodium	30	42.4	A2R006Q01	51.9	A2R006Q01	70.1	A2R006Q01	90.4	A2R006Q01	mg l^-1
Magnesium	30	29	A2R006Q01	35.9	A2R006Q01	39.3	A2R006Q01	40.9	A2R006Q01	mg l^-1
TDS	30	479	A2R006Q01	578	A2R006Q01	627	A2R006Q01	713	A2R006Q01	mg l^-1
Conductivity	30	74.1	A2R006Q01	87.1	A2R006Q01	94.7	A2R006Q01	109	A2R006Q01	mS m^-1

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	112	7.03	A2R002Q01	8.26	A2R002Q01	8.86	A2R002Q01	9.58	A2R002Q01	-log [H⁺]
Fluoride	112	0.1	A2R002Q01	0.25	A2R002Q01	0.28	A2R002Q01	0.39	A2R002Q01	mg l^-1
NO3(N)	112	0.02	A2R002Q01	0.575	A2R002Q01	1.443	A2R002Q01	3.297	A2R002Q01	mg l^-1
Sulphate	112	21.7	A2R002Q01	43.8	A2R002Q01	51.9	A2R002Q01	61.9	A2R002Q01	mg l^-1
Chloride	112	13.5	A2R002Q01	35.1	A2R002Q01	44.7	A2R002Q01	50.7	A2R002Q01	mg l^-1
Sodium	112	12.6	A2R002Q01	29.6	A2R002Q01	36.7	A2R002Q01	41.4	A2R002Q01	mg l^-1
Magnesium	112	8.5	A2R002Q01	19.3	A2R002Q01	23.3	A2R002Q01	26.8	A2R002Q01	mg l^-1
TDS	112	181	A2R002Q01	350	A2R002Q01	415	A2R002Q01	460	A2R002Q01	mg l^-1
Conductivity	112	26.3	A2R002Q01	48.7	A2R002Q01	57.9	A2R002Q01	64.5	A2R002Q01	mS m^-1

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	876	7.05	A2R009Q01	8.41	A2R009Q01	9.51	A2R009Q01	9.9	A2R009Q01	-log [H⁺]
Fluoride	876	0.19	A2R009Q01	0.27	A2R009Q01	0.31	A2R009Q01	0.4	A2R009Q01	mg l^-1
NO3(N)	876	0.02	A2R009Q01	0.561	A2R009Q01	1.394	A2R009Q01	2.717	A2R009Q01	mg l^-1
Sulphate	876	15.3	A2R009Q01	33.3	A2R009Q01	40.7	A2R009Q01	54.3	A2R009Q01	mg l^-1
Chloride	876	21.7	A2R009Q01	42.1	A2R009Q01	49.8	A2R009Q01	60.8	A2R009Q01	mg l^-1
Sodium	876	21	A2R009Q01	36.5	A2R009Q01	44.6	A2R009Q01	53	A2R009Q01	mg l^-1
Magnesium	876	11.1	A2R009Q01	15.1	A2R009Q01	17.2	A2R009Q01	23.4	A2R009Q01	mg l^-1
TDS	876	231	A2R009Q01	311	A2R009Q01	337	A2R009Q01	367	A2R009Q01	mg l^-1
Conductivity	876	31.9	A2R009Q01	46.1	A2R009Q01	49.7	A2R009Q01	57.4	A2R009Q01	mS m^-1

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	59	7.18	A2R013Q01	7.76	A2R013Q01	7.95	A2R013Q01	8.13	A2R013Q01	-log [H⁺]
Fluoride	59	0.05	A2R013Q01	0.14	A2R013Q01	0.21	A2R013Q01	0.25	A2R013Q01	mg l^-1
NO3(N)	59	0.02	A2R013Q01	0.055	A2R013Q01	0.221	A2R013Q01	1.153	A2R013Q01	mg l^-1
Sulphate	59	2	A2R013Q01	6.7	A2R013Q01	9.8	A2R013Q01	17.9	A2R013Q01	mg l^-1
Chloride	59	2	A2R013Q01	5	A2R013Q01	6.5	A2R013Q01	9.8	A2R013Q01	mg l^-1
Sodium	59	3.3	A2R013Q01	4.8	A2R013Q01	6.9	A2R013Q01	9.9	A2R013Q01	mg l^-1
Magnesium	59	1.7	A2R013Q01	4.6	A2R013Q01	6.2	A2R013Q01	7.9	A2R013Q01	mg l^-1
TDS	59	48	A2R013Q01	75	A2R013Q01	100	A2R013Q01	142	A2R013Q01	mg l^-1
Conductivity	59	7.5	A2R013Q01	10.1	A2R013Q01	14.1	A2R013Q01	18.2	A2R013Q01	mS m^-1