Chemical classification of Upper Vaal WMA 2006-12-18

Upper Vaal WMA

Chemical classification run on 2006-12-18 - 16:00:09

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]

105 quaternary drainage regions overlap Upper Vaal WMA

(5) Catchment C11E: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C1H026Q01 pipe Zaaihoek-Majuba Pipe Line Skulpspruit Ou none

Station	total n samples	description	map code
C1H026Q01	pipe	Zaaihoek-Majuba Pipe Line Skulpspruit Ou	none

(7) Catchment C11G: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C1H027Q01 569 Tweefontein Spruit at Tweefontein 1

Station	total n samples	description	map code
C1H027Q01	569	Tweefontein Spruit at Tweefontein	1

C11G - not classified: 1 samples between 2001-01-01 and 2005-12-31, 1 valid samples. Require at least 5.

(8) Catchment C11H: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C1H006Q01 1464 at Rietvley on Blesbokspruit 2

Station	total n samples	description	map code
C1H006Q01	1464	at Rietvley on Blesbokspruit	2

C11H - Stations used: 1, Samples selected: 247 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 247 6.93 C1H006Q01 8.19 C1H006Q01 8.47 C1H006Q01 9.01 C1H006Q01 -log [H⁺]

Fluoride 247 0.21 C1H006Q01 0.29 C1H006Q01 0.37 C1H006Q01 0.48 C1H006Q01 mg l^-1

NO3(N) 247 0.02 C1H006Q01 0.04 C1H006Q01 0.155 C1H006Q01 1.874 C1H006Q01 mg l^-1

Sulphate 247 16.7 C1H006Q01 45.6 C1H006Q01 65 C1H006Q01 84 C1H006Q01 mg l^-1

Chloride 247 5 C1H006Q01 24 C1H006Q01 66.5 C1H006Q01 88.8 C1H006Q01 mg l^-1

Sodium 247 8.2 C1H006Q01 33.1 C1H006Q01 78.8 C1H006Q01 93.1 C1H006Q01 mg l^-1

Magnesium 247 7.4 C1H006Q01 27.5 C1H006Q01 37.7 C1H006Q01 44.5 C1H006Q01 mg l^-1

TDS 247 124 C1H006Q01 412 C1H006Q01 636 C1H006Q01 741 C1H006Q01 mg l^-1

Conductivity 247 17 C1H006Q01 53.5 C1H006Q01 81.5 C1H006Q01 93.9 C1H006Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C11H n=247 Class 1: I(Mg TDS EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	247	6.93	C1H006Q01	8.19	C1H006Q01	8.47	C1H006Q01	9.01	C1H006Q01	-log [H⁺]
Fluoride	247	0.21	C1H006Q01	0.29	C1H006Q01	0.37	C1H006Q01	0.48	C1H006Q01	mg l^-1
NO3(N)	247	0.02	C1H006Q01	0.04	C1H006Q01	0.155	C1H006Q01	1.874	C1H006Q01	mg l^-1
Sulphate	247	16.7	C1H006Q01	45.6	C1H006Q01	65	C1H006Q01	84	C1H006Q01	mg l^-1
Chloride	247	5	C1H006Q01	24	C1H006Q01	66.5	C1H006Q01	88.8	C1H006Q01	mg l^-1
Sodium	247	8.2	C1H006Q01	33.1	C1H006Q01	78.8	C1H006Q01	93.1	C1H006Q01	mg l^-1
Magnesium	247	7.4	C1H006Q01	27.5	C1H006Q01	37.7	C1H006Q01	44.5	C1H006Q01	mg l^-1
TDS	247	124	C1H006Q01	412	C1H006Q01	636	C1H006Q01	741	C1H006Q01	mg l^-1
Conductivity	247	17	C1H006Q01	53.5	C1H006Q01	81.5	C1H006Q01	93.9	C1H006Q01	mS m^-1

(9) Catchment C11J: Total number of "H...Q" (flow gauging, quality) stations = 4.

Station total n
samples description map
code

C1H006Q01 1464 at Rietvley on Blesbokspruit 3

C1H007Q02 0 Goedgeluk Bloukop on Vaal River none

C1H007Q02 0 Vaal River at Goedgeluk-Bloukop none

C1H007Q01 1525 Vaal River at Goedgeluk-Bloukop 4

Station	total n samples	description	map code
C1H006Q01	1464	at Rietvley on Blesbokspruit	3
C1H007Q02	0	Goedgeluk Bloukop on Vaal River	none
C1H007Q02	0	Vaal River at Goedgeluk-Bloukop	none
C1H007Q01	1525	Vaal River at Goedgeluk-Bloukop	4

C11J - Stations used: 4, Samples selected: 495 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 495 6.93 C1H006Q01 8.12 C1H007Q01 8.46 C1H006Q01 9.36 C1H007Q01 -log [H⁺]

Fluoride 495 0.1 C1H007Q01 0.23 C1H007Q01 0.34 C1H006Q01 0.48 C1H006Q01 mg l^-1

NO3(N) 495 0.02 C1H007Q01 0.055 C1H007Q01 0.195 C1H007Q01 1.874 C1H006Q01 mg l^-1

Sulphate 495 3 C1H007Q01 34.1 C1H007Q01 59.8 C1H006Q01 84 C1H006Q01 mg l^-1

Chloride 495 5 C1H007Q01 15 C1H006Q01 57.8 C1H006Q01 88.8 C1H006Q01 mg l^-1

Sodium 495 4.6 C1H007Q01 18.7 C1H006Q01 70.3 C1H006Q01 93.1 C1H006Q01 mg l^-1

Magnesium 495 4.6 C1H007Q01 16.9 C1H006Q01 35.1 C1H006Q01 44.5 C1H006Q01 mg l^-1

TDS 495 78 C1H007Q01 268 C1H007Q01 602 C1H006Q01 741 C1H006Q01 mg l^-1

Conductivity 495 12.7 C1H007Q01 36.6 C1H006Q01 78.4 C1H006Q01 93.9 C1H006Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C11J n=495 Class 1: I(Mg TDS EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	495	6.93	C1H006Q01	8.12	C1H007Q01	8.46	C1H006Q01	9.36	C1H007Q01	-log [H⁺]
Fluoride	495	0.1	C1H007Q01	0.23	C1H007Q01	0.34	C1H006Q01	0.48	C1H006Q01	mg l^-1
NO3(N)	495	0.02	C1H007Q01	0.055	C1H007Q01	0.195	C1H007Q01	1.874	C1H006Q01	mg l^-1
Sulphate	495	3	C1H007Q01	34.1	C1H007Q01	59.8	C1H006Q01	84	C1H006Q01	mg l^-1
Chloride	495	5	C1H007Q01	15	C1H006Q01	57.8	C1H006Q01	88.8	C1H006Q01	mg l^-1
Sodium	495	4.6	C1H007Q01	18.7	C1H006Q01	70.3	C1H006Q01	93.1	C1H006Q01	mg l^-1
Magnesium	495	4.6	C1H007Q01	16.9	C1H006Q01	35.1	C1H006Q01	44.5	C1H006Q01	mg l^-1
TDS	495	78	C1H007Q01	268	C1H007Q01	602	C1H006Q01	741	C1H006Q01	mg l^-1
Conductivity	495	12.7	C1H007Q01	36.6	C1H006Q01	78.4	C1H006Q01	93.9	C1H006Q01	mS m^-1

(10) Catchment C11K: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C1H005Q01 1234 Leeu Spruit at Welbedacht 5

Station	total n samples	description	map code
C1H005Q01	1234	Leeu Spruit at Welbedacht	5

C11K - Stations used: 1, Samples selected: 218 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 218 7.31 C1H005Q01 8.18 C1H005Q01 8.59 C1H005Q01 9.13 C1H005Q01 -log [H⁺]

Fluoride 218 0.2 C1H005Q01 0.31 C1H005Q01 0.37 C1H005Q01 0.58 C1H005Q01 mg l^-1

NO3(N) 218 0.02 C1H005Q01 0.049 C1H005Q01 0.155 C1H005Q01 2.226 C1H005Q01 mg l^-1

Sulphate 218 22.8 C1H005Q01 40 C1H005Q01 58.5 C1H005Q01 102.4 C1H005Q01 mg l^-1

Chloride 218 5 C1H005Q01 18.8 C1H005Q01 30.3 C1H005Q01 57.1 C1H005Q01 mg l^-1

Sodium 218 10.3 C1H005Q01 26.7 C1H005Q01 40.6 C1H005Q01 72.3 C1H005Q01 mg l^-1

Magnesium 218 5.4 C1H005Q01 19.3 C1H005Q01 33.5 C1H005Q01 38.3 C1H005Q01 mg l^-1

TDS 218 138 C1H005Q01 308 C1H005Q01 455 C1H005Q01 597 C1H005Q01 mg l^-1

Conductivity 218 17.9 C1H005Q01 42.1 C1H005Q01 59.6 C1H005Q01 78.4 C1H005Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C11K n=218 Class 1: I(Mg TDS)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	218	7.31	C1H005Q01	8.18	C1H005Q01	8.59	C1H005Q01	9.13	C1H005Q01	-log [H⁺]
Fluoride	218	0.2	C1H005Q01	0.31	C1H005Q01	0.37	C1H005Q01	0.58	C1H005Q01	mg l^-1
NO3(N)	218	0.02	C1H005Q01	0.049	C1H005Q01	0.155	C1H005Q01	2.226	C1H005Q01	mg l^-1
Sulphate	218	22.8	C1H005Q01	40	C1H005Q01	58.5	C1H005Q01	102.4	C1H005Q01	mg l^-1
Chloride	218	5	C1H005Q01	18.8	C1H005Q01	30.3	C1H005Q01	57.1	C1H005Q01	mg l^-1
Sodium	218	10.3	C1H005Q01	26.7	C1H005Q01	40.6	C1H005Q01	72.3	C1H005Q01	mg l^-1
Magnesium	218	5.4	C1H005Q01	19.3	C1H005Q01	33.5	C1H005Q01	38.3	C1H005Q01	mg l^-1
TDS	218	138	C1H005Q01	308	C1H005Q01	455	C1H005Q01	597	C1H005Q01	mg l^-1
Conductivity	218	17.9	C1H005Q01	42.1	C1H005Q01	59.6	C1H005Q01	78.4	C1H005Q01	mS m^-1

(11) Catchment C11L: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

C1H005Q01 1234 Leeu Spruit at Welbedacht 6

C1H020Q01 dam Grootdraai Dam on Vaal River: Right Cana none

Station	total n samples	description	map code
C1H005Q01	1234	Leeu Spruit at Welbedacht	6
C1H020Q01	dam	Grootdraai Dam on Vaal River: Right Cana	none

C11L - Stations used: 1, Samples selected: 218 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 218 7.31 C1H005Q01 8.18 C1H005Q01 8.59 C1H005Q01 9.13 C1H005Q01 -log [H⁺]

Fluoride 218 0.2 C1H005Q01 0.31 C1H005Q01 0.37 C1H005Q01 0.58 C1H005Q01 mg l^-1

NO3(N) 218 0.02 C1H005Q01 0.049 C1H005Q01 0.155 C1H005Q01 2.226 C1H005Q01 mg l^-1

Sulphate 218 22.8 C1H005Q01 40 C1H005Q01 58.5 C1H005Q01 102.4 C1H005Q01 mg l^-1

Chloride 218 5 C1H005Q01 18.8 C1H005Q01 30.3 C1H005Q01 57.1 C1H005Q01 mg l^-1

Sodium 218 10.3 C1H005Q01 26.7 C1H005Q01 40.6 C1H005Q01 72.3 C1H005Q01 mg l^-1

Magnesium 218 5.4 C1H005Q01 19.3 C1H005Q01 33.5 C1H005Q01 38.3 C1H005Q01 mg l^-1

TDS 218 138 C1H005Q01 308 C1H005Q01 455 C1H005Q01 597 C1H005Q01 mg l^-1

Conductivity 218 17.9 C1H005Q01 42.1 C1H005Q01 59.6 C1H005Q01 78.4 C1H005Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C11L n=218 Class 1: I(Mg TDS)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	218	7.31	C1H005Q01	8.18	C1H005Q01	8.59	C1H005Q01	9.13	C1H005Q01	-log [H⁺]
Fluoride	218	0.2	C1H005Q01	0.31	C1H005Q01	0.37	C1H005Q01	0.58	C1H005Q01	mg l^-1
NO3(N)	218	0.02	C1H005Q01	0.049	C1H005Q01	0.155	C1H005Q01	2.226	C1H005Q01	mg l^-1
Sulphate	218	22.8	C1H005Q01	40	C1H005Q01	58.5	C1H005Q01	102.4	C1H005Q01	mg l^-1
Chloride	218	5	C1H005Q01	18.8	C1H005Q01	30.3	C1H005Q01	57.1	C1H005Q01	mg l^-1
Sodium	218	10.3	C1H005Q01	26.7	C1H005Q01	40.6	C1H005Q01	72.3	C1H005Q01	mg l^-1
Magnesium	218	5.4	C1H005Q01	19.3	C1H005Q01	33.5	C1H005Q01	38.3	C1H005Q01	mg l^-1
TDS	218	138	C1H005Q01	308	C1H005Q01	455	C1H005Q01	597	C1H005Q01	mg l^-1
Conductivity	218	17.9	C1H005Q01	42.1	C1H005Q01	59.6	C1H005Q01	78.4	C1H005Q01	mS m^-1

(12) Catchment C11M: Total number of "H...Q" (flow gauging, quality) stations = 3.

Station total n
samples description map
code

C1H020Q01 dam Grootdraai Dam on Vaal River: Right Cana none

C1H019Q01 dam Grootdraai Dam on Vaal River: Down Strea none

C1H001Q01 513 Vaal River at Langverwyl-Standerton 7

Station	total n samples	description	map code
C1H020Q01	dam	Grootdraai Dam on Vaal River: Right Cana	none
C1H019Q01	dam	Grootdraai Dam on Vaal River: Down Strea	none
C1H001Q01	513	Vaal River at Langverwyl-Standerton	7

C11M - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(15) Catchment C12C: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C1H012Q01 997 Vaal River at Nooitgedacht-Gladdedrift 8

Station	total n samples	description	map code
C1H012Q01	997	Vaal River at Nooitgedacht-Gladdedrift	8

C12C - Stations used: 1, Samples selected: 247 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 247 7.29 C1H012Q01 8.21 C1H012Q01 8.48 C1H012Q01 8.61 C1H012Q01 -log [H⁺]

Fluoride 247 0.16 C1H012Q01 0.24 C1H012Q01 0.31 C1H012Q01 0.42 C1H012Q01 mg l^-1

NO3(N) 247 0.02 C1H012Q01 0.055 C1H012Q01 0.175 C1H012Q01 1.87 C1H012Q01 mg l^-1

Sulphate 247 2 C1H012Q01 24.6 C1H012Q01 31 C1H012Q01 59.4 C1H012Q01 mg l^-1

Chloride 247 5 C1H012Q01 13.6 C1H012Q01 20.8 C1H012Q01 49.8 C1H012Q01 mg l^-1

Sodium 247 8.3 C1H012Q01 19.1 C1H012Q01 28 C1H012Q01 45.6 C1H012Q01 mg l^-1

Magnesium 247 4.6 C1H012Q01 15.3 C1H012Q01 22.3 C1H012Q01 26.1 C1H012Q01 mg l^-1

TDS 247 103 C1H012Q01 260 C1H012Q01 352 C1H012Q01 415 C1H012Q01 mg l^-1

Conductivity 247 16.5 C1H012Q01 34.8 C1H012Q01 46.3 C1H012Q01 55 C1H012Q01 mS m^-1

Summary of classification: C12C n=247 Class 0

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	247	7.29	C1H012Q01	8.21	C1H012Q01	8.48	C1H012Q01	8.61	C1H012Q01	-log [H⁺]
Fluoride	247	0.16	C1H012Q01	0.24	C1H012Q01	0.31	C1H012Q01	0.42	C1H012Q01	mg l^-1
NO3(N)	247	0.02	C1H012Q01	0.055	C1H012Q01	0.175	C1H012Q01	1.87	C1H012Q01	mg l^-1
Sulphate	247	2	C1H012Q01	24.6	C1H012Q01	31	C1H012Q01	59.4	C1H012Q01	mg l^-1
Chloride	247	5	C1H012Q01	13.6	C1H012Q01	20.8	C1H012Q01	49.8	C1H012Q01	mg l^-1
Sodium	247	8.3	C1H012Q01	19.1	C1H012Q01	28	C1H012Q01	45.6	C1H012Q01	mg l^-1
Magnesium	247	4.6	C1H012Q01	15.3	C1H012Q01	22.3	C1H012Q01	26.1	C1H012Q01	mg l^-1
TDS	247	103	C1H012Q01	260	C1H012Q01	352	C1H012Q01	415	C1H012Q01	mg l^-1
Conductivity	247	16.5	C1H012Q01	34.8	C1H012Q01	46.3	C1H012Q01	55	C1H012Q01	mS m^-1

(16) Catchment C12D: Total number of "H...Q" (flow gauging, quality) stations = 13.

Station total n
samples description map
code

C1H041Q01 sewage Evander Sewage Works Discharge none

C1H043Q01 0 Zandfontein Leslie Mine Discharge Point none

C1H038Q01 0 Resm 5 Trichardspruit D-S Secunda U-S Kl none

C1H039Q01 0 Resm 6 U-S Trichardspruit Confluence on none

C1H040Q01 sewage Secunda Sewage Works Discharge none

C1H034Q01 0 Resm 17 D-S Grootvlei Weir on Klipspruit none

C1H033Q01 0 Resm 8 U-S Sasol Secunda on Klipspruit none

C1H032Q01 0 Resm 1 Trichardspruit D-S Bosjesspruit C none

C1H042Q01 0 Embalenhle S-W to Trichardtsprt none

C1H035Q01 0 Resm 21 Secunda Unit 05 Disch to Trib Tr none

C1H037Q01 0 Lm7 Wildebeestspruit @ R50 Before Conflu none

C1H004Q01 1525 Branddrift Roodebank on Watervalrivier 9

C1H036Q01 0 Lm3 at Roodebank on Watervalrivier none

Station	total n samples	description	map code
C1H041Q01	sewage	Evander Sewage Works Discharge	none
C1H043Q01	0	Zandfontein Leslie Mine Discharge Point	none
C1H038Q01	0	Resm 5 Trichardspruit D-S Secunda U-S Kl	none
C1H039Q01	0	Resm 6 U-S Trichardspruit Confluence on	none
C1H040Q01	sewage	Secunda Sewage Works Discharge	none
C1H034Q01	0	Resm 17 D-S Grootvlei Weir on Klipspruit	none
C1H033Q01	0	Resm 8 U-S Sasol Secunda on Klipspruit	none
C1H032Q01	0	Resm 1 Trichardspruit D-S Bosjesspruit C	none
C1H042Q01	0	Embalenhle S-W to Trichardtsprt	none
C1H035Q01	0	Resm 21 Secunda Unit 05 Disch to Trib Tr	none
C1H037Q01	0	Lm7 Wildebeestspruit @ R50 Before Conflu	none
C1H004Q01	1525	Branddrift Roodebank on Watervalrivier	9
C1H036Q01	0	Lm3 at Roodebank on Watervalrivier	none

C12D - Stations used: 11, Samples selected: 258 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 258 7.26 C1H004Q01 8.12 C1H004Q01 8.41 C1H004Q01 9.33 C1H004Q01 -log [H⁺]

Fluoride 258 0.3 C1H004Q01 0.53 C1H004Q01 0.66 C1H004Q01 3.17 C1H004Q01 mg l^-1

NO3(N) 258 0.02 C1H004Q01 2.262 C1H004Q01 3.98 C1H004Q01 27.888 C1H004Q01 mg l^-1

Sulphate 258 14.5 C1H004Q01 72.4 C1H004Q01 89.8 C1H004Q01 127.5 C1H004Q01 mg l^-1

Chloride 258 12.7 C1H004Q01 51.8 C1H004Q01 62.9 C1H004Q01 112.4 C1H004Q01 mg l^-1

Sodium 258 15.1 C1H004Q01 57 C1H004Q01 66.2 C1H004Q01 89.2 C1H004Q01 mg l^-1

Magnesium 258 5.6 C1H004Q01 23.1 C1H004Q01 26.7 C1H004Q01 32.7 C1H004Q01 mg l^-1

TDS 258 138 C1H004Q01 494 C1H004Q01 541 C1H004Q01 616 C1H004Q01 mg l^-1

Conductivity 258 18.8 C1H004Q01 68.5 C1H004Q01 74.5 C1H004Q01 88.2 C1H004Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C12D n=258 Class 1: I(TDS EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	258	7.26	C1H004Q01	8.12	C1H004Q01	8.41	C1H004Q01	9.33	C1H004Q01	-log [H⁺]
Fluoride	258	0.3	C1H004Q01	0.53	C1H004Q01	0.66	C1H004Q01	3.17	C1H004Q01	mg l^-1
NO3(N)	258	0.02	C1H004Q01	2.262	C1H004Q01	3.98	C1H004Q01	27.888	C1H004Q01	mg l^-1
Sulphate	258	14.5	C1H004Q01	72.4	C1H004Q01	89.8	C1H004Q01	127.5	C1H004Q01	mg l^-1
Chloride	258	12.7	C1H004Q01	51.8	C1H004Q01	62.9	C1H004Q01	112.4	C1H004Q01	mg l^-1
Sodium	258	15.1	C1H004Q01	57	C1H004Q01	66.2	C1H004Q01	89.2	C1H004Q01	mg l^-1
Magnesium	258	5.6	C1H004Q01	23.1	C1H004Q01	26.7	C1H004Q01	32.7	C1H004Q01	mg l^-1
TDS	258	138	C1H004Q01	494	C1H004Q01	541	C1H004Q01	616	C1H004Q01	mg l^-1
Conductivity	258	18.8	C1H004Q01	68.5	C1H004Q01	74.5	C1H004Q01	88.2	C1H004Q01	mS m^-1

(18) Catchment C12F: Total number of "H...Q" (flow gauging, quality) stations = 6.

Station total n
samples description map
code

C1H004Q01 1525 Branddrift Roodebank on Watervalrivier 10

C1H036Q01 0 Lm3 at Roodebank on Watervalrivier none

C1H028Q01 0 Poortjiesfontein at Road Bridge on Water none

C1H029Q01 0 Waterval Balfour-Standerton Road none

C1H018Q01 1 Elandslaagte on Watervalrivier 11

C1H008Q01 1193 Elandslaagte on Watervalrivier 12

Station	total n samples	description	map code
C1H004Q01	1525	Branddrift Roodebank on Watervalrivier	10
C1H036Q01	0	Lm3 at Roodebank on Watervalrivier	none
C1H028Q01	0	Poortjiesfontein at Road Bridge on Water	none
C1H029Q01	0	Waterval Balfour-Standerton Road	none
C1H018Q01	1	Elandslaagte on Watervalrivier	11
C1H008Q01	1193	Elandslaagte on Watervalrivier	12

C12F - Stations used: 6, Samples selected: 515 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 515 7.26 C1H004Q01 8.16 C1H008Q01 8.58 C1H004Q01 9.35 C1H008Q01 -log [H⁺]

Fluoride 515 0.17 C1H008Q01 0.52 C1H004Q01 0.66 C1H004Q01 3.17 C1H004Q01 mg l^-1

NO3(N) 515 0.02 C1H008Q01 1.055 C1H004Q01 3.757 C1H004Q01 27.888 C1H004Q01 mg l^-1

Sulphate 515 14.5 C1H004Q01 69.1 C1H008Q01 87.2 C1H004Q01 127.5 C1H004Q01 mg l^-1

Chloride 515 8.8 C1H008Q01 52 C1H004Q01 65 C1H008Q01 112.4 C1H004Q01 mg l^-1

Sodium 515 9.1 C1H008Q01 56.5 C1H008Q01 66.6 C1H008Q01 89.2 C1H004Q01 mg l^-1

Magnesium 515 4.8 C1H008Q01 23.3 C1H004Q01 27.4 C1H004Q01 33.9 C1H008Q01 mg l^-1

TDS 515 133 C1H008Q01 492 C1H004Q01 545 C1H004Q01 616 C1H004Q01 mg l^-1

Conductivity 515 18.7 C1H008Q01 67.8 C1H008Q01 74.5 C1H008Q01 88.2 C1H004Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C12F n=515 Class 1: I(TDS EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	515	7.26	C1H004Q01	8.16	C1H008Q01	8.58	C1H004Q01	9.35	C1H008Q01	-log [H⁺]
Fluoride	515	0.17	C1H008Q01	0.52	C1H004Q01	0.66	C1H004Q01	3.17	C1H004Q01	mg l^-1
NO3(N)	515	0.02	C1H008Q01	1.055	C1H004Q01	3.757	C1H004Q01	27.888	C1H004Q01	mg l^-1
Sulphate	515	14.5	C1H004Q01	69.1	C1H008Q01	87.2	C1H004Q01	127.5	C1H004Q01	mg l^-1
Chloride	515	8.8	C1H008Q01	52	C1H004Q01	65	C1H008Q01	112.4	C1H004Q01	mg l^-1
Sodium	515	9.1	C1H008Q01	56.5	C1H008Q01	66.6	C1H008Q01	89.2	C1H004Q01	mg l^-1
Magnesium	515	4.8	C1H008Q01	23.3	C1H004Q01	27.4	C1H004Q01	33.9	C1H008Q01	mg l^-1
TDS	515	133	C1H008Q01	492	C1H004Q01	545	C1H004Q01	616	C1H004Q01	mg l^-1
Conductivity	515	18.7	C1H008Q01	67.8	C1H008Q01	74.5	C1H008Q01	88.2	C1H004Q01	mS m^-1

(19) Catchment C12G: Total number of "H...Q" (flow gauging, quality) stations = 4.

Station total n
samples description map
code

C1H029Q01 0 Waterval Balfour-Standerton Road none

C1H018Q01 1 Elandslaagte on Watervalrivier 13

C1H008Q01 1193 Elandslaagte on Watervalrivier 14

C1H030Q01 0 at Wolwefontein U-S Vaal Confluence on W none

Station	total n samples	description	map code
C1H029Q01	0	Waterval Balfour-Standerton Road	none
C1H018Q01	1	Elandslaagte on Watervalrivier	13
C1H008Q01	1193	Elandslaagte on Watervalrivier	14
C1H030Q01	0	at Wolwefontein U-S Vaal Confluence on W	none

C12G - Stations used: 4, Samples selected: 257 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 257 7.28 C1H008Q01 8.25 C1H008Q01 8.72 C1H008Q01 9.35 C1H008Q01 -log [H⁺]

Fluoride 257 0.17 C1H008Q01 0.49 C1H008Q01 0.66 C1H008Q01 1.12 C1H008Q01 mg l^-1

NO3(N) 257 0.02 C1H008Q01 0.088 C1H008Q01 1.144 C1H008Q01 14.745 C1H008Q01 mg l^-1

Sulphate 257 20.9 C1H008Q01 63.2 C1H008Q01 84.4 C1H008Q01 110.7 C1H008Q01 mg l^-1

Chloride 257 8.8 C1H008Q01 52.6 C1H008Q01 66.4 C1H008Q01 107.8 C1H008Q01 mg l^-1

Sodium 257 9.1 C1H008Q01 54.6 C1H008Q01 67.5 C1H008Q01 79.6 C1H008Q01 mg l^-1

Magnesium 257 4.8 C1H008Q01 23.5 C1H008Q01 28 C1H008Q01 33.9 C1H008Q01 mg l^-1

TDS 257 133 C1H008Q01 485 C1H008Q01 547 C1H008Q01 601 C1H008Q01 mg l^-1

Conductivity 257 18.7 C1H008Q01 65.6 C1H008Q01 74.6 C1H008Q01 87.5 C1H008Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C12G n=257 Class 1: I(TDS EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	257	7.28	C1H008Q01	8.25	C1H008Q01	8.72	C1H008Q01	9.35	C1H008Q01	-log [H⁺]
Fluoride	257	0.17	C1H008Q01	0.49	C1H008Q01	0.66	C1H008Q01	1.12	C1H008Q01	mg l^-1
NO3(N)	257	0.02	C1H008Q01	0.088	C1H008Q01	1.144	C1H008Q01	14.745	C1H008Q01	mg l^-1
Sulphate	257	20.9	C1H008Q01	63.2	C1H008Q01	84.4	C1H008Q01	110.7	C1H008Q01	mg l^-1
Chloride	257	8.8	C1H008Q01	52.6	C1H008Q01	66.4	C1H008Q01	107.8	C1H008Q01	mg l^-1
Sodium	257	9.1	C1H008Q01	54.6	C1H008Q01	67.5	C1H008Q01	79.6	C1H008Q01	mg l^-1
Magnesium	257	4.8	C1H008Q01	23.5	C1H008Q01	28	C1H008Q01	33.9	C1H008Q01	mg l^-1
TDS	257	133	C1H008Q01	485	C1H008Q01	547	C1H008Q01	601	C1H008Q01	mg l^-1
Conductivity	257	18.7	C1H008Q01	65.6	C1H008Q01	74.6	C1H008Q01	87.5	C1H008Q01	mS m^-1

(20) Catchment C12H: Total number of "H...Q" (flow gauging, quality) stations = 4.

Station total n
samples description map
code

C1H031Q01 0 Vaal at Gladdedrift U-S Waterval Conflue none

C1H012Q01 997 Vaal River at Nooitgedacht-Gladdedrift 15

C1H011Q01 267 Vaal River at Grootdraai-Villiers 16

C1H017Q01 1021 Vaal River at Villiers Flood Section 17

Station	total n samples	description	map code
C1H031Q01	0	Vaal at Gladdedrift U-S Waterval Conflue	none
C1H012Q01	997	Vaal River at Nooitgedacht-Gladdedrift	15
C1H011Q01	267	Vaal River at Grootdraai-Villiers	16
C1H017Q01	1021	Vaal River at Villiers Flood Section	17

C12H - Stations used: 4, Samples selected: 509 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 509 6.99 C1H017Q01 8.17 C1H017Q01 8.46 C1H012Q01 8.96 C1H017Q01 -log [H⁺]

Fluoride 509 0.1 C1H017Q01 0.25 C1H012Q01 0.33 C1H017Q01 0.46 C1H017Q01 mg l^-1

NO3(N) 509 0.02 C1H012Q01 0.055 C1H012Q01 0.372 C1H017Q01 31.2 C1H017Q01 mg l^-1

Sulphate 509 2 C1H012Q01 26.2 C1H012Q01 36.1 C1H017Q01 59.4 C1H012Q01 mg l^-1

Chloride 509 5 C1H012Q01 14.8 C1H012Q01 24.7 C1H017Q01 49.8 C1H012Q01 mg l^-1

Sodium 509 8.3 C1H012Q01 19.7 C1H012Q01 29.4 C1H017Q01 45.6 C1H012Q01 mg l^-1

Magnesium 509 4.6 C1H012Q01 15.5 C1H012Q01 23.1 C1H012Q01 27.3 C1H017Q01 mg l^-1

TDS 509 103 C1H012Q01 268 C1H012Q01 368 C1H017Q01 545 C1H017Q01 mg l^-1

Conductivity 509 16.5 C1H012Q01 35.9 C1H017Q01 48.7 C1H017Q01 55 C1H012Q01 mS m^-1

Summary of classification: C12H n=509 Class 0

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	509	6.99	C1H017Q01	8.17	C1H017Q01	8.46	C1H012Q01	8.96	C1H017Q01	-log [H⁺]
Fluoride	509	0.1	C1H017Q01	0.25	C1H012Q01	0.33	C1H017Q01	0.46	C1H017Q01	mg l^-1
NO3(N)	509	0.02	C1H012Q01	0.055	C1H012Q01	0.372	C1H017Q01	31.2	C1H017Q01	mg l^-1
Sulphate	509	2	C1H012Q01	26.2	C1H012Q01	36.1	C1H017Q01	59.4	C1H012Q01	mg l^-1
Chloride	509	5	C1H012Q01	14.8	C1H012Q01	24.7	C1H017Q01	49.8	C1H012Q01	mg l^-1
Sodium	509	8.3	C1H012Q01	19.7	C1H012Q01	29.4	C1H017Q01	45.6	C1H012Q01	mg l^-1
Magnesium	509	4.6	C1H012Q01	15.5	C1H012Q01	23.1	C1H012Q01	27.3	C1H017Q01	mg l^-1
TDS	509	103	C1H012Q01	268	C1H012Q01	368	C1H017Q01	545	C1H017Q01	mg l^-1
Conductivity	509	16.5	C1H012Q01	35.9	C1H017Q01	48.7	C1H017Q01	55	C1H012Q01	mS m^-1

(21) Catchment C12J: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C1H010Q01 290 at Sweet Home on Bankplaasspruit 18

Station	total n samples	description	map code
C1H010Q01	290	at Sweet Home on Bankplaasspruit	18

C12J - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(22) Catchment C12K: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C1H009Q01 279 Molspruit at Leeufontein 19

Station	total n samples	description	map code
C1H009Q01	279	Molspruit at Leeufontein	19

C12K - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(23) Catchment C12L: Total number of "H...Q" (flow gauging, quality) stations = 3.

Station total n
samples description map
code

C1H009Q01 279 Molspruit at Leeufontein 20

C1H017Q01 1021 Vaal River at Villiers Flood Section 21

C1H010Q01 290 at Sweet Home on Bankplaasspruit 22

Station	total n samples	description	map code
C1H009Q01	279	Molspruit at Leeufontein	20
C1H017Q01	1021	Vaal River at Villiers Flood Section	21
C1H010Q01	290	at Sweet Home on Bankplaasspruit	22

C12L - Stations used: 3, Samples selected: 262 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 262 6.99 C1H017Q01 8.14 C1H017Q01 8.43 C1H017Q01 8.96 C1H017Q01 -log [H⁺]

Fluoride 262 0.1 C1H017Q01 0.27 C1H017Q01 0.36 C1H017Q01 0.46 C1H017Q01 mg l^-1

NO3(N) 262 0.02 C1H017Q01 0.055 C1H017Q01 0.495 C1H017Q01 31.2 C1H017Q01 mg l^-1

Sulphate 262 8.3 C1H017Q01 28.8 C1H017Q01 40.3 C1H017Q01 53.1 C1H017Q01 mg l^-1

Chloride 262 5 C1H017Q01 16.6 C1H017Q01 26.2 C1H017Q01 34.6 C1H017Q01 mg l^-1

Sodium 262 9.2 C1H017Q01 21.2 C1H017Q01 31.2 C1H017Q01 39.1 C1H017Q01 mg l^-1

Magnesium 262 5.8 C1H017Q01 16 C1H017Q01 23.6 C1H017Q01 27.3 C1H017Q01 mg l^-1

TDS 262 120 C1H017Q01 276 C1H017Q01 377 C1H017Q01 545 C1H017Q01 mg l^-1

Conductivity 262 16.9 C1H017Q01 37.3 C1H017Q01 50.3 C1H017Q01 54.1 C1H017Q01 mS m^-1

Summary of classification: C12L n=262 Class 0

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	262	6.99	C1H017Q01	8.14	C1H017Q01	8.43	C1H017Q01	8.96	C1H017Q01	-log [H⁺]
Fluoride	262	0.1	C1H017Q01	0.27	C1H017Q01	0.36	C1H017Q01	0.46	C1H017Q01	mg l^-1
NO3(N)	262	0.02	C1H017Q01	0.055	C1H017Q01	0.495	C1H017Q01	31.2	C1H017Q01	mg l^-1
Sulphate	262	8.3	C1H017Q01	28.8	C1H017Q01	40.3	C1H017Q01	53.1	C1H017Q01	mg l^-1
Chloride	262	5	C1H017Q01	16.6	C1H017Q01	26.2	C1H017Q01	34.6	C1H017Q01	mg l^-1
Sodium	262	9.2	C1H017Q01	21.2	C1H017Q01	31.2	C1H017Q01	39.1	C1H017Q01	mg l^-1
Magnesium	262	5.8	C1H017Q01	16	C1H017Q01	23.6	C1H017Q01	27.3	C1H017Q01	mg l^-1
TDS	262	120	C1H017Q01	276	C1H017Q01	377	C1H017Q01	545	C1H017Q01	mg l^-1
Conductivity	262	16.9	C1H017Q01	37.3	C1H017Q01	50.3	C1H017Q01	54.1	C1H017Q01	mS m^-1

(29) Catchment C13F: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

C1H002Q01 1331 Sterkfontein Delangesdrift on Kliprivier 23

C1H015Q01 487 Sterkfontein Delangesdrift at Steel Brid 24

Station	total n samples	description	map code
C1H002Q01	1331	Sterkfontein Delangesdrift on Kliprivier	23
C1H015Q01	487	Sterkfontein Delangesdrift at Steel Brid	24

C13F - Stations used: 2, Samples selected: 305 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 305 5.93 C1H015Q01 8.06 C1H002Q01 8.3 C1H015Q01 8.56 C1H015Q01 -log [H⁺]

Fluoride 305 0.05 C1H015Q01 0.22 C1H002Q01 0.3 C1H015Q01 0.63 C1H015Q01 mg l^-1

NO3(N) 305 0.02 C1H015Q01 0.055 C1H015Q01 0.159 C1H002Q01 5.246 C1H002Q01 mg l^-1

Sulphate 305 7.2 C1H015Q01 18.2 C1H015Q01 25.4 C1H002Q01 41.1 C1H002Q01 mg l^-1

Chloride 305 2 C1H015Q01 9.3 C1H002Q01 13.6 C1H015Q01 25 C1H015Q01 mg l^-1

Sodium 305 3.1 C1H015Q01 15.9 C1H002Q01 26.8 C1H002Q01 39.6 C1H015Q01 mg l^-1

Magnesium 305 3.4 C1H015Q01 14.7 C1H002Q01 23.5 C1H015Q01 27.3 C1H015Q01 mg l^-1

TDS 305 76 C1H015Q01 252 C1H002Q01 370 C1H015Q01 434 C1H015Q01 mg l^-1

Conductivity 305 10.3 C1H015Q01 33.1 C1H015Q01 46.3 C1H002Q01 53.5 C1H002Q01 mS m^-1

Summary of classification: C13F n=305 Class 0

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	305	5.93	C1H015Q01	8.06	C1H002Q01	8.3	C1H015Q01	8.56	C1H015Q01	-log [H⁺]
Fluoride	305	0.05	C1H015Q01	0.22	C1H002Q01	0.3	C1H015Q01	0.63	C1H015Q01	mg l^-1
NO3(N)	305	0.02	C1H015Q01	0.055	C1H015Q01	0.159	C1H002Q01	5.246	C1H002Q01	mg l^-1
Sulphate	305	7.2	C1H015Q01	18.2	C1H015Q01	25.4	C1H002Q01	41.1	C1H002Q01	mg l^-1
Chloride	305	2	C1H015Q01	9.3	C1H002Q01	13.6	C1H015Q01	25	C1H015Q01	mg l^-1
Sodium	305	3.1	C1H015Q01	15.9	C1H002Q01	26.8	C1H002Q01	39.6	C1H015Q01	mg l^-1
Magnesium	305	3.4	C1H015Q01	14.7	C1H002Q01	23.5	C1H015Q01	27.3	C1H015Q01	mg l^-1
TDS	305	76	C1H015Q01	252	C1H002Q01	370	C1H015Q01	434	C1H015Q01	mg l^-1
Conductivity	305	10.3	C1H015Q01	33.1	C1H015Q01	46.3	C1H002Q01	53.5	C1H002Q01	mS m^-1

(31) Catchment C13H: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

C1H002Q01 1331 Sterkfontein Delangesdrift on Kliprivier 25

C1H015Q01 487 Sterkfontein Delangesdrift at Steel Brid 26

Station	total n samples	description	map code
C1H002Q01	1331	Sterkfontein Delangesdrift on Kliprivier	25
C1H015Q01	487	Sterkfontein Delangesdrift at Steel Brid	26

C13H - Stations used: 2, Samples selected: 305 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 305 5.93 C1H015Q01 8.06 C1H002Q01 8.3 C1H015Q01 8.56 C1H015Q01 -log [H⁺]

Fluoride 305 0.05 C1H015Q01 0.22 C1H002Q01 0.3 C1H015Q01 0.63 C1H015Q01 mg l^-1

NO3(N) 305 0.02 C1H015Q01 0.055 C1H015Q01 0.159 C1H002Q01 5.246 C1H002Q01 mg l^-1

Sulphate 305 7.2 C1H015Q01 18.2 C1H015Q01 25.4 C1H002Q01 41.1 C1H002Q01 mg l^-1

Chloride 305 2 C1H015Q01 9.3 C1H002Q01 13.6 C1H015Q01 25 C1H015Q01 mg l^-1

Sodium 305 3.1 C1H015Q01 15.9 C1H002Q01 26.8 C1H002Q01 39.6 C1H015Q01 mg l^-1

Magnesium 305 3.4 C1H015Q01 14.7 C1H002Q01 23.5 C1H015Q01 27.3 C1H015Q01 mg l^-1

TDS 305 76 C1H015Q01 252 C1H002Q01 370 C1H015Q01 434 C1H015Q01 mg l^-1

Conductivity 305 10.3 C1H015Q01 33.1 C1H015Q01 46.3 C1H002Q01 53.5 C1H002Q01 mS m^-1

Summary of classification: C13H n=305 Class 0

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	305	5.93	C1H015Q01	8.06	C1H002Q01	8.3	C1H015Q01	8.56	C1H015Q01	-log [H⁺]
Fluoride	305	0.05	C1H015Q01	0.22	C1H002Q01	0.3	C1H015Q01	0.63	C1H015Q01	mg l^-1
NO3(N)	305	0.02	C1H015Q01	0.055	C1H015Q01	0.159	C1H002Q01	5.246	C1H002Q01	mg l^-1
Sulphate	305	7.2	C1H015Q01	18.2	C1H015Q01	25.4	C1H002Q01	41.1	C1H002Q01	mg l^-1
Chloride	305	2	C1H015Q01	9.3	C1H002Q01	13.6	C1H015Q01	25	C1H015Q01	mg l^-1
Sodium	305	3.1	C1H015Q01	15.9	C1H002Q01	26.8	C1H002Q01	39.6	C1H015Q01	mg l^-1
Magnesium	305	3.4	C1H015Q01	14.7	C1H002Q01	23.5	C1H015Q01	27.3	C1H015Q01	mg l^-1
TDS	305	76	C1H015Q01	252	C1H002Q01	370	C1H015Q01	434	C1H015Q01	mg l^-1
Conductivity	305	10.3	C1H015Q01	33.1	C1H015Q01	46.3	C1H002Q01	53.5	C1H002Q01	mS m^-1

(34) Catchment C21C: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C2H131Q01 232 Rw C-S1 Colliery Point on Suikerbosrant 27

Station	total n samples	description	map code
C2H131Q01	232	Rw C-S1 Colliery Point on Suikerbosrant	27

C21C - Stations used: 1, Samples selected: 7 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 7 7.3 C2H131Q01 7.4 C2H131Q01 7.76 C2H131Q01 7.9 C2H131Q01 -log [H⁺]

Fluoride 7 0.2 C2H131Q01 0.3 C2H131Q01 0.33 C2H131Q01 0.4 C2H131Q01 mg l^-1

NO3(N) 7 0.05 C2H131Q01 0.05 C2H131Q01 1.09 C2H131Q01 2.7 C2H131Q01 mg l^-1

Sulphate 7 31 C2H131Q01 42 C2H131Q01 62 C2H131Q01 69 C2H131Q01 mg l^-1

Chloride 7 11 C2H131Q01 34 C2H131Q01 56.4 C2H131Q01 90 C2H131Q01 mg l^-1

Sodium 7 17.1 C2H131Q01 24.7 C2H131Q01 47.6 C2H131Q01 70.8 C2H131Q01 mg l^-1

Magnesium 7 4.9 C2H131Q01 9.6 C2H131Q01 18.4 C2H131Q01 19.8 C2H131Q01 mg l^-1

TDS 7 171 C2H131Q01 269 C2H131Q01 361 C2H131Q01 372 C2H131Q01 mg l^-1

Conductivity 7 15 C2H131Q01 39 C2H131Q01 47 C2H131Q01 54 C2H131Q01 mS m^-1

Summary of classification: C21C n=7 Class 0

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	7	7.3	C2H131Q01	7.4	C2H131Q01	7.76	C2H131Q01	7.9	C2H131Q01	-log [H⁺]
Fluoride	7	0.2	C2H131Q01	0.3	C2H131Q01	0.33	C2H131Q01	0.4	C2H131Q01	mg l^-1
NO3(N)	7	0.05	C2H131Q01	0.05	C2H131Q01	1.09	C2H131Q01	2.7	C2H131Q01	mg l^-1
Sulphate	7	31	C2H131Q01	42	C2H131Q01	62	C2H131Q01	69	C2H131Q01	mg l^-1
Chloride	7	11	C2H131Q01	34	C2H131Q01	56.4	C2H131Q01	90	C2H131Q01	mg l^-1
Sodium	7	17.1	C2H131Q01	24.7	C2H131Q01	47.6	C2H131Q01	70.8	C2H131Q01	mg l^-1
Magnesium	7	4.9	C2H131Q01	9.6	C2H131Q01	18.4	C2H131Q01	19.8	C2H131Q01	mg l^-1
TDS	7	171	C2H131Q01	269	C2H131Q01	361	C2H131Q01	372	C2H131Q01	mg l^-1
Conductivity	7	15	C2H131Q01	39	C2H131Q01	47	C2H131Q01	54	C2H131Q01	mS m^-1

(35) Catchment C21D: Total number of "H...Q" (flow gauging, quality) stations = 24.

Station total n
samples description map
code

C2H205Q01 sewage Daveyton Sewage Works none

C2H192Q01 0 Victor Penning Bird Sanctuary Outflow none

C2H190Q01 sewage Rynfield Sewage Works none

C2H191Q01 dam Rynfield Dam Overflow none

C2H102Q01 7 at Daveyton Klipfontein U-S N12 on Blesb 28

C2H193Q01 sewage Jp Marais Sewage Works-Modderbee none

C2H187Q01 0 Homestead Lake Overflow none

C2H189Q01 canal Blesbokspruit Canal at Snake Road none

C2H196Q01 0 Blesbokspruit on R29 Main Reef Road none

C2H177Q01 0 Daveytonspruit at Welgedacht none

C2H194Q01 0 Hospital Road Stream none

C2H203Q01 dam Cowles Dam Overflow none

C2H134Q01 dam Cowles Dam Outflow at Springs Rw B9 none

C2H202Q01 effluent Sappi Combined Final Effluent none

C2H201Q01 effluent Sappi Combined Final Effluent none

C2H188Q01 sewage Benoni Old Sewage Works-New Kleinfontein none

C2H197Q01 0 Government Gold Mine Areas none

C2H198Q01 dam Murray Park Blesbokspruit at Bird Dam Ou none

C2H150Q01 307 R555 Road Bridge on Blesbokspruit 29

C2H204Q01 sewage Mccomb Sewage Works-Cloverfield none

C2H200Q01 0 Enstra Road none

C2H195Q01 sewage Jan Smuts Dam Sewage Works-Anzac none

C2H199Q01 0 Deryck Terblanche Park 6-L-4 none

C2H208Q01 0 Grootvlei Mine Springs-Shaft 4 none

Station	total n samples	description	map code
C2H205Q01	sewage	Daveyton Sewage Works	none
C2H192Q01	0	Victor Penning Bird Sanctuary Outflow	none
C2H190Q01	sewage	Rynfield Sewage Works	none
C2H191Q01	dam	Rynfield Dam Overflow	none
C2H102Q01	7	at Daveyton Klipfontein U-S N12 on Blesb	28
C2H193Q01	sewage	Jp Marais Sewage Works-Modderbee	none
C2H187Q01	0	Homestead Lake Overflow	none
C2H189Q01	canal	Blesbokspruit Canal at Snake Road	none
C2H196Q01	0	Blesbokspruit on R29 Main Reef Road	none
C2H177Q01	0	Daveytonspruit at Welgedacht	none
C2H194Q01	0	Hospital Road Stream	none
C2H203Q01	dam	Cowles Dam Overflow	none
C2H134Q01	dam	Cowles Dam Outflow at Springs Rw B9	none
C2H202Q01	effluent	Sappi Combined Final Effluent	none
C2H201Q01	effluent	Sappi Combined Final Effluent	none
C2H188Q01	sewage	Benoni Old Sewage Works-New Kleinfontein	none
C2H197Q01	0	Government Gold Mine Areas	none
C2H198Q01	dam	Murray Park Blesbokspruit at Bird Dam Ou	none
C2H150Q01	307	R555 Road Bridge on Blesbokspruit	29
C2H204Q01	sewage	Mccomb Sewage Works-Cloverfield	none
C2H200Q01	0	Enstra Road	none
C2H195Q01	sewage	Jan Smuts Dam Sewage Works-Anzac	none
C2H199Q01	0	Deryck Terblanche Park 6-L-4	none
C2H208Q01	0	Grootvlei Mine Springs-Shaft 4	none

C21D - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(36) Catchment C21E: Total number of "H...Q" (flow gauging, quality) stations = 20.

Station total n
samples description map
code

C2H207Q01 effluent Grootvlei Mine Hds Plant Effluent none

C2H206Q01 0 Grootvlei Mine Springs-Raw Underground W none

C2H144Q01 1 Grootvlei Mine Discharge -End of Pipe 30

C2H143Q01 dam Grootvlei Mine Retention Dam Discharge P none

C2H178Q01 0 Grootvlei Mine Bridge 50m West none

C2H142Q01 42 at Grootvlei Mine Bridge East 31

C2H147Q01 143 @ Grootvlei Betw Mine Bridge & N17 on Bl 32

C2H210Q01 0 Klein Blesbokspruit on R29 Ermelo Road none

C2H179Q01 0 Blesbokspruit on R29 Ermelo Road Bridge none

C2H209Q01 sewage Ancor Sewage Works Springs none

C2H146Q01 84 @ Daggafontein 2km Downstream N17 on Ble 33

C2H180Q01 0 N17 Road Bridge Over Blesbokspruit none

C2H182Q01 0 Marievale Bird Sanctuary Bridge none

C2H145Q01 94 @ Vlakfontein Marievale Bird Santuary on 34

C2H211Q01 sewage Cf Grundling Sewage Works Nigel Final Ef none

C2H183Q01 0 R42 Delmas-Nigel Road Bridge none

C2H148Q01 7 @ Nigel Brick Works R42 Bridge on Blesbo 35

C2H212Q01 canal Nigel Stormwater Canal on R42 Road none

C2H149Q01 308 B8 Nigel R51 Road Bridge to Balf Our 36

C2H184Q01 0 Noycedale Nigel on Blesbokspruit none

Station	total n samples	description	map code
C2H207Q01	effluent	Grootvlei Mine Hds Plant Effluent	none
C2H206Q01	0	Grootvlei Mine Springs-Raw Underground W	none
C2H144Q01	1	Grootvlei Mine Discharge -End of Pipe	30
C2H143Q01	dam	Grootvlei Mine Retention Dam Discharge P	none
C2H178Q01	0	Grootvlei Mine Bridge 50m West	none
C2H142Q01	42	at Grootvlei Mine Bridge East	31
C2H147Q01	143	@ Grootvlei Betw Mine Bridge & N17 on Bl	32
C2H210Q01	0	Klein Blesbokspruit on R29 Ermelo Road	none
C2H179Q01	0	Blesbokspruit on R29 Ermelo Road Bridge	none
C2H209Q01	sewage	Ancor Sewage Works Springs	none
C2H146Q01	84	@ Daggafontein 2km Downstream N17 on Ble	33
C2H180Q01	0	N17 Road Bridge Over Blesbokspruit	none
C2H182Q01	0	Marievale Bird Sanctuary Bridge	none
C2H145Q01	94	@ Vlakfontein Marievale Bird Santuary on	34
C2H211Q01	sewage	Cf Grundling Sewage Works Nigel Final Ef	none
C2H183Q01	0	R42 Delmas-Nigel Road Bridge	none
C2H148Q01	7	@ Nigel Brick Works R42 Bridge on Blesbo	35
C2H212Q01	canal	Nigel Stormwater Canal on R42 Road	none
C2H149Q01	308	B8 Nigel R51 Road Bridge to Balf Our	36
C2H184Q01	0	Noycedale Nigel on Blesbokspruit	none

C21E - Stations used: 15, Samples selected: 14 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 14 6.8 C2H149Q01 7.6 C2H149Q01 8.02 C2H149Q01 8.2 C2H149Q01 -log [H⁺]

Fluoride 14 0.2 C2H142Q01 0.3 C2H149Q01 0.46 C2H142Q01 0.7 C2H142Q01 mg l^-1

NO3(N) 14 0.05 C2H149Q01 0.05 C2H149Q01 3.08 C2H149Q01 9.2 C2H142Q01 mg l^-1

Sulphate 14 39 C2H142Q01 440 C2H149Q01 690 C2H142Q01 780 C2H149Q01 mg l^-1

Chloride 14 41 C2H142Q01 132 C2H149Q01 151.2 C2H142Q01 175 C2H149Q01 mg l^-1

Sodium 14 43 C2H142Q01 134.9 C2H142Q01 197.1 C2H142Q01 237.5 C2H149Q01 mg l^-1

Magnesium 14 8 C2H142Q01 43 C2H149Q01 81.7 C2H149Q01 124.9 C2H142Q01 mg l^-1

TDS 14 297 C2H142Q01 1217 C2H149Q01 1756 C2H149Q01 1962 C2H142Q01 mg l^-1

Conductivity 14 41 C2H142Q01 162 C2H149Q01 214.6 C2H142Q01 229 C2H149Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C21E n=14 Class 3: I(Cl Na) II(Mg TDS EC) III(SO4)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	14	6.8	C2H149Q01	7.6	C2H149Q01	8.02	C2H149Q01	8.2	C2H149Q01	-log [H⁺]
Fluoride	14	0.2	C2H142Q01	0.3	C2H149Q01	0.46	C2H142Q01	0.7	C2H142Q01	mg l^-1
NO3(N)	14	0.05	C2H149Q01	0.05	C2H149Q01	3.08	C2H149Q01	9.2	C2H142Q01	mg l^-1
Sulphate	14	39	C2H142Q01	440	C2H149Q01	690	C2H142Q01	780	C2H149Q01	mg l^-1
Chloride	14	41	C2H142Q01	132	C2H149Q01	151.2	C2H142Q01	175	C2H149Q01	mg l^-1
Sodium	14	43	C2H142Q01	134.9	C2H142Q01	197.1	C2H142Q01	237.5	C2H149Q01	mg l^-1
Magnesium	14	8	C2H142Q01	43	C2H149Q01	81.7	C2H149Q01	124.9	C2H142Q01	mg l^-1
TDS	14	297	C2H142Q01	1217	C2H149Q01	1756	C2H149Q01	1962	C2H142Q01	mg l^-1
Conductivity	14	41	C2H142Q01	162	C2H149Q01	214.6	C2H142Q01	229	C2H149Q01	mS m^-1

(37) Catchment C21F: Total number of "H...Q" (flow gauging, quality) stations = 9.

Station total n
samples description map
code

C2H215Q01 sewage Tsakane Sewage Works none

C2H184Q01 0 Noycedale Nigel on Blesbokspruit none

C2H213Q01 0 @ Maraisdrift on Herbert Bickley Sw Fina none

C2H214Q01 sewage Jameson Park Sewage Works Maraisdrift Po none

C2H216Q01 0 Stream From Duduza at Kaydale none

C2H185Q01 0 Poortjie Road on Blesbokspruit none

C2H133Q01 1424 Rw C-B10 at Heidelberg on Blesbokspruit 37

C2H217Q01 sewage Heidelberg Sewage Works Boschhoek none

C2H186Q01 0 at Klipstapel on Blesbokspruit none

Station	total n samples	description	map code
C2H215Q01	sewage	Tsakane Sewage Works	none
C2H184Q01	0	Noycedale Nigel on Blesbokspruit	none
C2H213Q01	0	@ Maraisdrift on Herbert Bickley Sw Fina	none
C2H214Q01	sewage	Jameson Park Sewage Works Maraisdrift Po	none
C2H216Q01	0	Stream From Duduza at Kaydale	none
C2H185Q01	0	Poortjie Road on Blesbokspruit	none
C2H133Q01	1424	Rw C-B10 at Heidelberg on Blesbokspruit	37
C2H217Q01	sewage	Heidelberg Sewage Works Boschhoek	none
C2H186Q01	0	at Klipstapel on Blesbokspruit	none

C21F - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(38) Catchment C21G: Total number of "H...Q" (flow gauging, quality) stations = 3.

Station total n
samples description map
code

C2H070Q01 764 Schickfontein on Suikerbosrant River 38

C2H004Q01 2599 Suikerbosrant River at Vereeniging Weir 39

C2H234Q01 390 Suikerbosrantriver at Badfontein 40

Station	total n samples	description	map code
C2H070Q01	764	Schickfontein on Suikerbosrant River	38
C2H004Q01	2599	Suikerbosrant River at Vereeniging Weir	39
C2H234Q01	390	Suikerbosrantriver at Badfontein	40

C21G - Stations used: 3, Samples selected: 265 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 265 7.51 C2H234Q01 8.26 C2H234Q01 8.47 C2H234Q01 8.65 C2H234Q01 -log [H⁺]

Fluoride 265 0.17 C2H234Q01 0.32 C2H234Q01 0.39 C2H234Q01 0.5 C2H004Q01 mg l^-1

NO3(N) 265 0.02 C2H234Q01 0.601 C2H234Q01 1.248 C2H234Q01 3.933 C2H234Q01 mg l^-1

Sulphate 265 76.8 C2H234Q01 476.4 C2H234Q01 622 C2H234Q01 798.1 C2H234Q01 mg l^-1

Chloride 265 15.6 C2H234Q01 129.8 C2H234Q01 163.8 C2H234Q01 199 C2H234Q01 mg l^-1

Sodium 265 25.8 C2H234Q01 146.4 C2H234Q01 185.6 C2H234Q01 239.2 C2H234Q01 mg l^-1

Magnesium 265 1.6 C2H234Q01 51.7 C2H234Q01 65.5 C2H234Q01 101.9 C2H234Q01 mg l^-1

TDS 265 249 C2H234Q01 1216 C2H234Q01 1486 C2H234Q01 1806 C2H234Q01 mg l^-1

Conductivity 265 37.5 C2H234Q01 169 C2H234Q01 201.5 C2H234Q01 240 C2H234Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C21G n=265 Class 3: I(Cl Na Mg) II(TDS EC) III(SO4)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	265	7.51	C2H234Q01	8.26	C2H234Q01	8.47	C2H234Q01	8.65	C2H234Q01	-log [H⁺]
Fluoride	265	0.17	C2H234Q01	0.32	C2H234Q01	0.39	C2H234Q01	0.5	C2H004Q01	mg l^-1
NO3(N)	265	0.02	C2H234Q01	0.601	C2H234Q01	1.248	C2H234Q01	3.933	C2H234Q01	mg l^-1
Sulphate	265	76.8	C2H234Q01	476.4	C2H234Q01	622	C2H234Q01	798.1	C2H234Q01	mg l^-1
Chloride	265	15.6	C2H234Q01	129.8	C2H234Q01	163.8	C2H234Q01	199	C2H234Q01	mg l^-1
Sodium	265	25.8	C2H234Q01	146.4	C2H234Q01	185.6	C2H234Q01	239.2	C2H234Q01	mg l^-1
Magnesium	265	1.6	C2H234Q01	51.7	C2H234Q01	65.5	C2H234Q01	101.9	C2H234Q01	mg l^-1
TDS	265	249	C2H234Q01	1216	C2H234Q01	1486	C2H234Q01	1806	C2H234Q01	mg l^-1
Conductivity	265	37.5	C2H234Q01	169	C2H234Q01	201.5	C2H234Q01	240	C2H234Q01	mS m^-1

(39) Catchment C22A: Total number of "H...Q" (flow gauging, quality) stations = 8.

Station total n
samples description map
code

C2H218Q01 61 Klip River @ R41 Witpoortjie U-S Durban 41

C2H219Q01 74 Klip River at Durban Deep Mine D-S Shaf 42

C2H222Q01 14 at New Canada Road on Russel Stream 43

C2H221Q01 59 Russel Stream @ New Canada Rd D-S Crown 44

C2H224Q01 42 Klipspruit at Soweto Highway Mzimhlope 45

C2H223Q01 13 Russel Stream Klipspruit Trib..at Booy 46

C2H039Q01 62 Klip River at R84 Protea D-S Durban Dee 47

C2H220Q01 55 Klip River at Golden Highway Olifantsvle 48

Station	total n samples	description	map code
C2H218Q01	61	Klip River @ R41 Witpoortjie U-S Durban	41
C2H219Q01	74	Klip River at Durban Deep Mine D-S Shaf	42
C2H222Q01	14	at New Canada Road on Russel Stream	43
C2H221Q01	59	Russel Stream @ New Canada Rd D-S Crown	44
C2H224Q01	42	Klipspruit at Soweto Highway Mzimhlope	45
C2H223Q01	13	Russel Stream Klipspruit Trib..at Booy	46
C2H039Q01	62	Klip River at R84 Protea D-S Durban Dee	47
C2H220Q01	55	Klip River at Golden Highway Olifantsvle	48

C22A - not classified: 1 samples between 2001-01-01 and 2005-12-31, 1 valid samples. Require at least 5.

(40) Catchment C22B: Total number of "H...Q" (flow gauging, quality) stations = 8.

Station total n
samples description map
code

C2H229Q01 dam at Delmore U-S Elsburg Dam R46 on Elsbur none

C2H227Q01 13 Hillview Smith Avenue U-S Simmer & Jack 49

C2H225Q01 14 Rosherville Lower Germiston on Stream at 50

C2H226Q01 13 @ R46 Ds City Deep Gm on Stream @ Simmer 51

C2H230Q01 dam at Wadeville D-S Elsburg Dam R39 on Elsb none

C2H231Q01 dam Dixie Spruit D-S Cinderella Dam none

C2H228Q01 21 Natal Spruit at Alberton-Heidelberg Road 52

C2H135Q01 375 Natal Spruit at Rietfontein Rw N8 53

Station	total n samples	description	map code
C2H229Q01	dam	at Delmore U-S Elsburg Dam R46 on Elsbur	none
C2H227Q01	13	Hillview Smith Avenue U-S Simmer & Jack	49
C2H225Q01	14	Rosherville Lower Germiston on Stream at	50
C2H226Q01	13	@ R46 Ds City Deep Gm on Stream @ Simmer	51
C2H230Q01	dam	at Wadeville D-S Elsburg Dam R39 on Elsb	none
C2H231Q01	dam	Dixie Spruit D-S Cinderella Dam	none
C2H228Q01	21	Natal Spruit at Alberton-Heidelberg Road	52
C2H135Q01	375	Natal Spruit at Rietfontein Rw N8	53

C22B - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(41) Catchment C22C: Total number of "H...Q" (flow gauging, quality) stations = 7.

Station total n
samples description map
code

C2H188Q01 sewage Benoni Old Sewage Works-New Kleinfontein none

C2H232Q01 13 Riet Spruit at R103-Mapleton Agricultura 54

C2H135Q01 375 Natal Spruit at Rietfontein Rw N8 55

C2H132Q01 212 Riet Spruit at Tamboekiesfontein Herman 56

C2H141Q01 504 Klip River at Witkop New Bridge 57

C2H136Q01 1890 Rietspruit at Waterval Luttig Rw R6 58

C2H021Q01 852 Klip River at Witkop Rw K25 59

Station	total n samples	description	map code
C2H188Q01	sewage	Benoni Old Sewage Works-New Kleinfontein	none
C2H232Q01	13	Riet Spruit at R103-Mapleton Agricultura	54
C2H135Q01	375	Natal Spruit at Rietfontein Rw N8	55
C2H132Q01	212	Riet Spruit at Tamboekiesfontein Herman	56
C2H141Q01	504	Klip River at Witkop New Bridge	57
C2H136Q01	1890	Rietspruit at Waterval Luttig Rw R6	58
C2H021Q01	852	Klip River at Witkop Rw K25	59

C22C - Stations used: 6, Samples selected: 259 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 259 6.98 C2H141Q01 7.82 C2H141Q01 8.03 C2H141Q01 8.24 C2H141Q01 -log [H⁺]

Fluoride 259 0.05 C2H141Q01 0.26 C2H141Q01 0.3 C2H141Q01 0.43 C2H141Q01 mg l^-1

NO3(N) 259 0.04 C2H141Q01 3.838 C2H141Q01 5.303 C2H141Q01 14.295 C2H141Q01 mg l^-1

Sulphate 259 39 C2H141Q01 155.8 C2H141Q01 202.8 C2H141Q01 369.5 C2H141Q01 mg l^-1

Chloride 259 16.8 C2H141Q01 63.4 C2H141Q01 71.2 C2H141Q01 82.2 C2H141Q01 mg l^-1

Sodium 259 16.8 C2H141Q01 61.9 C2H141Q01 70.5 C2H141Q01 89.1 C2H141Q01 mg l^-1

Magnesium 259 9.9 C2H141Q01 20.1 C2H141Q01 25.2 C2H141Q01 54.4 C2H141Q01 mg l^-1

TDS 259 214 C2H141Q01 516 C2H141Q01 597 C2H141Q01 776 C2H141Q01 mg l^-1

Conductivity 259 32.6 C2H141Q01 76.1 C2H141Q01 85.9 C2H141Q01 105.4 C2H141Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C22C n=259 Class 1: I(SO4 TDS EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	259	6.98	C2H141Q01	7.82	C2H141Q01	8.03	C2H141Q01	8.24	C2H141Q01	-log [H⁺]
Fluoride	259	0.05	C2H141Q01	0.26	C2H141Q01	0.3	C2H141Q01	0.43	C2H141Q01	mg l^-1
NO3(N)	259	0.04	C2H141Q01	3.838	C2H141Q01	5.303	C2H141Q01	14.295	C2H141Q01	mg l^-1
Sulphate	259	39	C2H141Q01	155.8	C2H141Q01	202.8	C2H141Q01	369.5	C2H141Q01	mg l^-1
Chloride	259	16.8	C2H141Q01	63.4	C2H141Q01	71.2	C2H141Q01	82.2	C2H141Q01	mg l^-1
Sodium	259	16.8	C2H141Q01	61.9	C2H141Q01	70.5	C2H141Q01	89.1	C2H141Q01	mg l^-1
Magnesium	259	9.9	C2H141Q01	20.1	C2H141Q01	25.2	C2H141Q01	54.4	C2H141Q01	mg l^-1
TDS	259	214	C2H141Q01	516	C2H141Q01	597	C2H141Q01	776	C2H141Q01	mg l^-1
Conductivity	259	32.6	C2H141Q01	76.1	C2H141Q01	85.9	C2H141Q01	105.4	C2H141Q01	mS m^-1

(42) Catchment C22D: Total number of "H...Q" (flow gauging, quality) stations = 4.

Station total n
samples description map
code

C2H137Q01 1866 Klip River at Zwartkopjes Rw K21 60

C2H141Q01 504 Klip River at Witkop New Bridge 61

C2H136Q01 1890 Rietspruit at Waterval Luttig Rw R6 62

C2H021Q01 852 Klip River at Witkop Rw K25 63

Station	total n samples	description	map code
C2H137Q01	1866	Klip River at Zwartkopjes Rw K21	60
C2H141Q01	504	Klip River at Witkop New Bridge	61
C2H136Q01	1890	Rietspruit at Waterval Luttig Rw R6	62
C2H021Q01	852	Klip River at Witkop Rw K25	63

C22D - Stations used: 4, Samples selected: 259 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 259 6.98 C2H141Q01 7.82 C2H141Q01 8.03 C2H141Q01 8.24 C2H141Q01 -log [H⁺]

Fluoride 259 0.05 C2H141Q01 0.26 C2H141Q01 0.3 C2H141Q01 0.43 C2H141Q01 mg l^-1

NO3(N) 259 0.04 C2H141Q01 3.838 C2H141Q01 5.303 C2H141Q01 14.295 C2H141Q01 mg l^-1

Sulphate 259 39 C2H141Q01 155.8 C2H141Q01 202.8 C2H141Q01 369.5 C2H141Q01 mg l^-1

Chloride 259 16.8 C2H141Q01 63.4 C2H141Q01 71.2 C2H141Q01 82.2 C2H141Q01 mg l^-1

Sodium 259 16.8 C2H141Q01 61.9 C2H141Q01 70.5 C2H141Q01 89.1 C2H141Q01 mg l^-1

Magnesium 259 9.9 C2H141Q01 20.1 C2H141Q01 25.2 C2H141Q01 54.4 C2H141Q01 mg l^-1

TDS 259 214 C2H141Q01 516 C2H141Q01 597 C2H141Q01 776 C2H141Q01 mg l^-1

Conductivity 259 32.6 C2H141Q01 76.1 C2H141Q01 85.9 C2H141Q01 105.4 C2H141Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C22D n=259 Class 1: I(SO4 TDS EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	259	6.98	C2H141Q01	7.82	C2H141Q01	8.03	C2H141Q01	8.24	C2H141Q01	-log [H⁺]
Fluoride	259	0.05	C2H141Q01	0.26	C2H141Q01	0.3	C2H141Q01	0.43	C2H141Q01	mg l^-1
NO3(N)	259	0.04	C2H141Q01	3.838	C2H141Q01	5.303	C2H141Q01	14.295	C2H141Q01	mg l^-1
Sulphate	259	39	C2H141Q01	155.8	C2H141Q01	202.8	C2H141Q01	369.5	C2H141Q01	mg l^-1
Chloride	259	16.8	C2H141Q01	63.4	C2H141Q01	71.2	C2H141Q01	82.2	C2H141Q01	mg l^-1
Sodium	259	16.8	C2H141Q01	61.9	C2H141Q01	70.5	C2H141Q01	89.1	C2H141Q01	mg l^-1
Magnesium	259	9.9	C2H141Q01	20.1	C2H141Q01	25.2	C2H141Q01	54.4	C2H141Q01	mg l^-1
TDS	259	214	C2H141Q01	516	C2H141Q01	597	C2H141Q01	776	C2H141Q01	mg l^-1
Conductivity	259	32.6	C2H141Q01	76.1	C2H141Q01	85.9	C2H141Q01	105.4	C2H141Q01	mS m^-1

(43) Catchment C22E: Total number of "H...Q" (flow gauging, quality) stations = 5.

Station total n
samples description map
code

C2H141Q01 504 Klip River at Witkop New Bridge 64

C2H136Q01 1890 Rietspruit at Waterval Luttig Rw R6 65

C2H021Q01 852 Klip River at Witkop Rw K25 66

C2H071Q01 2652 Klip River at Kookfontein-Vereen..Rail B 67

C2H015Q01 544 Klip River at Waldrift-Vereeniging 68

Station	total n samples	description	map code
C2H141Q01	504	Klip River at Witkop New Bridge	64
C2H136Q01	1890	Rietspruit at Waterval Luttig Rw R6	65
C2H021Q01	852	Klip River at Witkop Rw K25	66
C2H071Q01	2652	Klip River at Kookfontein-Vereen..Rail B	67
C2H015Q01	544	Klip River at Waldrift-Vereeniging	68

C22E - Stations used: 5, Samples selected: 259 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 259 6.98 C2H141Q01 7.82 C2H141Q01 8.03 C2H141Q01 8.24 C2H141Q01 -log [H⁺]

Fluoride 259 0.05 C2H141Q01 0.26 C2H141Q01 0.3 C2H141Q01 0.43 C2H141Q01 mg l^-1

NO3(N) 259 0.04 C2H141Q01 3.838 C2H141Q01 5.303 C2H141Q01 14.295 C2H141Q01 mg l^-1

Sulphate 259 39 C2H141Q01 155.8 C2H141Q01 202.8 C2H141Q01 369.5 C2H141Q01 mg l^-1

Chloride 259 16.8 C2H141Q01 63.4 C2H141Q01 71.2 C2H141Q01 82.2 C2H141Q01 mg l^-1

Sodium 259 16.8 C2H141Q01 61.9 C2H141Q01 70.5 C2H141Q01 89.1 C2H141Q01 mg l^-1

Magnesium 259 9.9 C2H141Q01 20.1 C2H141Q01 25.2 C2H141Q01 54.4 C2H141Q01 mg l^-1

TDS 259 214 C2H141Q01 516 C2H141Q01 597 C2H141Q01 776 C2H141Q01 mg l^-1

Conductivity 259 32.6 C2H141Q01 76.1 C2H141Q01 85.9 C2H141Q01 105.4 C2H141Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C22E n=259 Class 1: I(SO4 TDS EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	259	6.98	C2H141Q01	7.82	C2H141Q01	8.03	C2H141Q01	8.24	C2H141Q01	-log [H⁺]
Fluoride	259	0.05	C2H141Q01	0.26	C2H141Q01	0.3	C2H141Q01	0.43	C2H141Q01	mg l^-1
NO3(N)	259	0.04	C2H141Q01	3.838	C2H141Q01	5.303	C2H141Q01	14.295	C2H141Q01	mg l^-1
Sulphate	259	39	C2H141Q01	155.8	C2H141Q01	202.8	C2H141Q01	369.5	C2H141Q01	mg l^-1
Chloride	259	16.8	C2H141Q01	63.4	C2H141Q01	71.2	C2H141Q01	82.2	C2H141Q01	mg l^-1
Sodium	259	16.8	C2H141Q01	61.9	C2H141Q01	70.5	C2H141Q01	89.1	C2H141Q01	mg l^-1
Magnesium	259	9.9	C2H141Q01	20.1	C2H141Q01	25.2	C2H141Q01	54.4	C2H141Q01	mg l^-1
TDS	259	214	C2H141Q01	516	C2H141Q01	597	C2H141Q01	776	C2H141Q01	mg l^-1
Conductivity	259	32.6	C2H141Q01	76.1	C2H141Q01	85.9	C2H141Q01	105.4	C2H141Q01	mS m^-1

(44) Catchment C22F: Total number of "H...Q" (flow gauging, quality) stations = 5.

Station total n
samples description map
code

C2H015Q01 544 Klip River at Waldrift-Vereeniging 69

C2H233Q01 13 Klip River at Riviera Golf Course U-S C 70

C2H010Q01 1209 Vaal River at Rietfontein-Vereeniging in 71

C2H003Q01 109 Vaal River at Elandsfontein-Engelbrechts 72

C2H122Q01 dam Vaal Dam on Vaal River: Down Stream Weir none

Station	total n samples	description	map code
C2H015Q01	544	Klip River at Waldrift-Vereeniging	69
C2H233Q01	13	Klip River at Riviera Golf Course U-S C	70
C2H010Q01	1209	Vaal River at Rietfontein-Vereeniging in	71
C2H003Q01	109	Vaal River at Elandsfontein-Engelbrechts	72
C2H122Q01	dam	Vaal Dam on Vaal River: Down Stream Weir	none

C22F - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(45) Catchment C22G: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

C2H014Q01 458 Taaibos Spruit at Verdun Rw T1 73

C1H024Q01 dam Vaal Dam on Vaal River: Rand Water Pipe none

Station	total n samples	description	map code
C2H014Q01	458	Taaibos Spruit at Verdun Rw T1	73
C1H024Q01	dam	Vaal Dam on Vaal River: Rand Water Pipe	none

C22G - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(46) Catchment C22H: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C2H076Q01 dam Westonaria Gold Mine Discharge Dam at Wa none

Station	total n samples	description	map code
C2H076Q01	dam	Westonaria Gold Mine Discharge Dam at Wa	none

C22H - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(47) Catchment C22J: Total number of "H...Q" (flow gauging, quality) stations = 3.

Station total n
samples description map
code

C2H076Q01 dam Westonaria Gold Mine Discharge Dam at Wa none

C2H062Q01 184 Little Rietspruit at Rietfontein 74

C2H005Q01 2665 Rietspruit at Kaalplaats Rw Rv2 75

Station	total n samples	description	map code
C2H076Q01	dam	Westonaria Gold Mine Discharge Dam at Wa	none
C2H062Q01	184	Little Rietspruit at Rietfontein	74
C2H005Q01	2665	Rietspruit at Kaalplaats Rw Rv2	75

C22J - Stations used: 2, Samples selected: 67 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 67 5.92 C2H062Q01 7.61 C2H005Q01 8 C2H005Q01 8.14 C2H005Q01 -log [H⁺]

Fluoride 67 0.23 C2H062Q01 0.61 C2H005Q01 1 C2H005Q01 3.2 C2H005Q01 mg l^-1

NO3(N) 67 0.162 C2H005Q01 5.4 C2H005Q01 7.854 C2H005Q01 32.194 C2H062Q01 mg l^-1

Sulphate 67 52 C2H005Q01 157.3 C2H005Q01 210.9 C2H005Q01 340 C2H005Q01 mg l^-1

Chloride 67 19 C2H005Q01 74 C2H005Q01 100.1 C2H005Q01 231 C2H005Q01 mg l^-1

Sodium 67 15.6 C2H005Q01 51.7 C2H005Q01 62.1 C2H005Q01 79.5 C2H062Q01 mg l^-1

Magnesium 67 8.4 C2H005Q01 19.4 C2H005Q01 24.4 C2H005Q01 67.3 C2H062Q01 mg l^-1

TDS 67 338 C2H005Q01 522 C2H005Q01 650 C2H005Q01 1160 C2H005Q01 mg l^-1

Conductivity 67 45 C2H005Q01 75 C2H005Q01 92.9 C2H005Q01 198 C2H062Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C22J n=67 Class 1: I(F NO3 SO4 Cl TDS EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	67	5.92	C2H062Q01	7.61	C2H005Q01	8	C2H005Q01	8.14	C2H005Q01	-log [H⁺]
Fluoride	67	0.23	C2H062Q01	0.61	C2H005Q01	1	C2H005Q01	3.2	C2H005Q01	mg l^-1
NO3(N)	67	0.162	C2H005Q01	5.4	C2H005Q01	7.854	C2H005Q01	32.194	C2H062Q01	mg l^-1
Sulphate	67	52	C2H005Q01	157.3	C2H005Q01	210.9	C2H005Q01	340	C2H005Q01	mg l^-1
Chloride	67	19	C2H005Q01	74	C2H005Q01	100.1	C2H005Q01	231	C2H005Q01	mg l^-1
Sodium	67	15.6	C2H005Q01	51.7	C2H005Q01	62.1	C2H005Q01	79.5	C2H062Q01	mg l^-1
Magnesium	67	8.4	C2H005Q01	19.4	C2H005Q01	24.4	C2H005Q01	67.3	C2H062Q01	mg l^-1
TDS	67	338	C2H005Q01	522	C2H005Q01	650	C2H005Q01	1160	C2H005Q01	mg l^-1
Conductivity	67	45	C2H005Q01	75	C2H005Q01	92.9	C2H005Q01	198	C2H062Q01	mS m^-1

(48) Catchment C22K: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

C2H005Q01 2665 Rietspruit at Kaalplaats Rw Rv2 76

C2H014Q01 458 Taaibos Spruit at Verdun Rw T1 77

C22K - Stations used: 2, Samples selected: 66 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 66 6.8 C2H005Q01 7.7 C2H005Q01 8 C2H005Q01 8.14 C2H005Q01 -log [H⁺]

Fluoride 66 0.3 C2H005Q01 0.63 C2H005Q01 1 C2H005Q01 3.2 C2H005Q01 mg l^-1

NO3(N) 66 0.162 C2H005Q01 5.4 C2H005Q01 7.565 C2H005Q01 12 C2H005Q01 mg l^-1

Sulphate 66 52 C2H005Q01 157.3 C2H005Q01 206.1 C2H005Q01 340 C2H005Q01 mg l^-1

Chloride 66 19 C2H005Q01 74 C2H005Q01 100.1 C2H005Q01 231 C2H005Q01 mg l^-1

Sodium 66 15.6 C2H005Q01 51.7 C2H005Q01 61.6 C2H005Q01 77.8 C2H005Q01 mg l^-1

Magnesium 66 8.4 C2H005Q01 19.4 C2H005Q01 24.1 C2H005Q01 53.2 C2H005Q01 mg l^-1

TDS 66 338 C2H005Q01 522 C2H005Q01 647 C2H005Q01 1160 C2H005Q01 mg l^-1

Conductivity 66 45 C2H005Q01 75 C2H005Q01 91.5 C2H005Q01 100.3 C2H005Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C22K n=66 Class 1: I(F NO3 SO4 Cl TDS EC)

(50) Catchment C23B: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

C2H008Q01 628 Vaal River at De Pont-Lindequesdrift 78

C2H140Q01 490 Vaal River at Woodlands-Goose Bay Canyon 79

C23B - Stations used: 2, Samples selected: 256 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 256 6.97 C2H140Q01 8.13 C2H140Q01 8.63 C2H140Q01 9.18 C2H140Q01 -log [H⁺]

Fluoride 256 0.21 C2H140Q01 0.35 C2H140Q01 0.41 C2H140Q01 0.58 C2H140Q01 mg l^-1

NO3(N) 256 0.02 C2H140Q01 1.836 C2H140Q01 2.894 C2H140Q01 3.934 C2H140Q01 mg l^-1

Sulphate 256 34.5 C2H140Q01 164.4 C2H140Q01 203 C2H140Q01 237.1 C2H140Q01 mg l^-1

Chloride 256 12.6 C2H140Q01 65.1 C2H140Q01 77.8 C2H140Q01 86.5 C2H140Q01 mg l^-1

Sodium 256 14.6 C2H140Q01 62.3 C2H140Q01 74.1 C2H140Q01 86.9 C2H140Q01 mg l^-1

Magnesium 256 9.8 C2H140Q01 21.9 C2H140Q01 26 C2H140Q01 47.7 C2H140Q01 mg l^-1

TDS 256 203 C2H140Q01 551 C2H140Q01 631 C2H140Q01 684 C2H140Q01 mg l^-1

Conductivity 256 29.5 C2H140Q01 79.5 C2H140Q01 89.8 C2H140Q01 97.5 C2H140Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C23B n=256 Class 1: I(SO4 TDS EC)

(51) Catchment C23C: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

C2H251Q01 56 Vaalriver at Parys 80

C2H018Q01 1674 Vaal River at De Vaal-Schoemansdrift 81

C23C - Stations used: 2, Samples selected: 285 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 285 7.18 C2H018Q01 8.14 C2H018Q01 8.89 C2H251Q01 9.4 C2H251Q01 -log [H⁺]

Fluoride 285 0.2 C2H018Q01 0.36 C2H018Q01 0.42 C2H018Q01 0.6 C2H251Q01 mg l^-1

NO3(N) 285 0.02 C2H018Q01 0.79 C2H018Q01 1.882 C2H018Q01 3.5 C2H251Q01 mg l^-1

Sulphate 285 33.9 C2H018Q01 163.9 C2H018Q01 202.8 C2H018Q01 239.7 C2H018Q01 mg l^-1

Chloride 285 14 C2H018Q01 65.8 C2H018Q01 80.1 C2H018Q01 97.2 C2H018Q01 mg l^-1

Sodium 285 14.8 C2H018Q01 63.2 C2H018Q01 77.8 C2H018Q01 90.1 C2H018Q01 mg l^-1

Magnesium 285 7.3 C2H251Q01 22.1 C2H018Q01 26.9 C2H018Q01 50.5 C2H018Q01 mg l^-1

TDS 285 192 C2H018Q01 555 C2H018Q01 647 C2H018Q01 744 C2H018Q01 mg l^-1

Conductivity 285 27.5 C2H018Q01 79.8 C2H018Q01 91.6 C2H018Q01 103.2 C2H018Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C23C n=285 Class 1: I(SO4 TDS EC)

(52) Catchment C23D: Total number of "H...Q" (flow gauging, quality) stations = 18.

Station total n
samples description map
code

C2H236Q01 0 Manganese Metal Property none

C2H235Q01 canal Stormwater Canal at Palmiet Ferrochrome none

C2H152Q01 45 Wonderfont Spruit Rail Bridge Betw Turk 82

C2H153Q01 67 Wonderfontein Spruit at Randfontein Azaa 83

C2H237Q01 effluent Flip Human Wcw Final Effluent at Rietval none

C2H270Q01 42 Wonderfontein Spruit at Luipaardsvlei 84

C2H023Q01 800 Wonderfontein Spruit at Luipaardsvlei 85

C2H026Q01 221 Middelvlei Spruit at Middelvlei 86

C2H027Q01 21 Kocksoord Spruit at Middelvlei 87

C2H271Q01 20 Wonderfontein Spruit R559 at Luipaardsv 88

C2H028Q01 434 Rietfontein Spruit at Rietfontein 89

C2H238Q01 1 Luipaardsvlei Panvlak Gold Mine 90

C2H154Q01 46 Wonderfontein Spruit at Bridge on The Do 91

C2H248Q01 canal Concrete Stormwater Canal at Bekkersdal none

C2H024Q01 170 Wonderfontein Spruit at Gemsbokfont..D-S 92

C2H025Q01 417 Wonderfontein Spruit no 7 at Gemsbokfont 93

C2H239Q01 effluent Final Effluent From Hannes Van Niekerk W none

C2H076Q01 dam Westonaria Gold Mine Discharge Dam at Wa none

C23D - Stations used: 13, Samples selected: 118 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 118 3.6 C2H152Q01 8.13 C2H025Q01 8.39 C2H025Q01 8.9 C2H270Q01 -log [H⁺]

Fluoride 118 0.05 C2H152Q01 0.3 C2H270Q01 0.4 C2H025Q01 0.7 C2H270Q01 mg l^-1

NO3(N) 118 0.02 C2H025Q01 0.1 C2H270Q01 1.901 C2H152Q01 16.159 C2H025Q01 mg l^-1

Sulphate 118 10 C2H270Q01 229.3 C2H025Q01 395.3 C2H025Q01 940 C2H152Q01 mg l^-1

Chloride 118 2.5 C2H026Q01 58 C2H025Q01 77.1 C2H270Q01 103 C2H153Q01 mg l^-1

Sodium 118 8.4 C2H026Q01 80.9 C2H025Q01 111.1 C2H025Q01 149 C2H025Q01 mg l^-1

Magnesium 118 3.4 C2H025Q01 21.4 C2H025Q01 29.9 C2H025Q01 145.9 C2H152Q01 mg l^-1

TDS 118 86 C2H026Q01 709 C2H153Q01 885 C2H270Q01 1244 C2H152Q01 mg l^-1

Conductivity 118 16 C2H026Q01 95.3 C2H025Q01 118.8 C2H025Q01 231 C2H152Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C23D n=118 Class 1: I(SO4 Na TDS EC)

(53) Catchment C23E: Total number of "H...Q" (flow gauging, quality) stations = 42.

Station total n
samples description map
code

C2H057Q01 canal West Driefontein Canal at Wonderfontein none

C2H107Q01 canal Canal From West Driefontein Canal at Won none

C2H030Q01 eye Wonderfontein Eye at Wonderfontein-Cana none

C2H092Q01 canal Canal From Gerhardminnebron-Eye at Gerha none

C2H032Q01 224 Mooirivierloop River at Wonderfontein 94

C2H157Q01 71 Wonderfontein Spruit at Low Water Bridge 95

C2H079Q01 canal Mixed Water of Canals C2h077 & C2h078 at none

C2H078Q01 canal Confluence: Canal From Venterspost G M A none

C2H077Q01 canal Confl.: West & East Driefontein Canals A none

C2H080Q01 pipe Wonderfontein @ End 1m Pipeline Ex Vent none

C2H081Q01 drain Canal to Which 1m Pipe C2h080 Drains A none

C2H082Q01 canal Canal at Inlet to Nature Res..at Rooipoo none

C2H261Q01 effluent Final Effluent From Oberholzer Sw @ Wond none

C2H151Q01 canal Oberholzer Canal South at Wonderfontein none

C2H044Q01 canal Oberholzer Canal South at Wonderfontein none

C2H083Q01 136 @ Wonderfontein Outflow Ex Nature Res no 96

C2H175Q01 dam Wonderfonteinspruit at Dam Overflow Harr none

C2H063Q01 canal West Driefontein Transfer Canal at Rooip none

C2H267Q01 effluent Final Effluent From Khutsong Wcw at Welv none

C2H156Q01 88 West Driefontein Gold Mine Process H2O R 97

C2H074Q01 furrow Furrow at Tarred Road North of Welverdie none

C2H155Q01 26 West Driefontein Gold Mine Fissure H2O D 98

C2H075Q01 130 Mooirivierloop at Blaauwbank Welverdiend 99

C2H060Q01 canal Doornfontein Canal at Blaauwbank none

C2H268Q01 effluent Final Effluent From Welverdiend Wcw at W none

C2H159Q01 plant Doornfont G-M Fissure H2O Gold Plant Dis none

C2H069Q01 1573 Mooirivierloop River at Blaauwbank 100

C2H266Q01 effluent Final Effluent From West Driefontein #4 none

C2H265Q01 effluent Final Effluent From East Driefontein at none

C2H158Q01 26 Blyvooruitzicht G Mine Fissure H2O Pipe 101

C2H176Q01 dam Varkenslaagtespruit at Doringdraai Dam W none

C2H244Q01 effluent Final Effluent From Blyvooruitzicht Gm A none

C2H242Q01 effluent Final Effluent From Doornfontein#1 G-M A none

C2H034Q01 0 Blyvooruitzicht -012 none

C2H245Q01 effluent Final Effluent From Western Deep Levels none

C2H160Q01 56 Doornfontein Gold Mine Fissure H2O no 3 102

C2H241Q01 effluent Final Effluent From Doornfontein G-M#3 A none

C2H163Q01 35 Varkenslaagte Spruit on Farm Bridge D-S 103

C2H033Q01 11 Buffelsdoorn Spruit at Doornfontein 104

C2H269Q01 21 Varkenslaagtespruit at Doornfontein Doo 105

C2H164Q01 dam Western Nursery Dam Overflow at Elandsra none

C2H165Q01 dam Deelkraal Gold Mine Recreational Dam Dee none

C23E - Stations used: 13, Samples selected: 355 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 355 6.7 C2H160Q01 8.1 C2H069Q01 8.4 C2H269Q01 9.3 C2H156Q01 -log [H⁺]

Fluoride 355 0.05 C2H069Q01 0.32 C2H069Q01 0.4 C2H069Q01 6.5 C2H069Q01 mg l^-1

NO3(N) 355 0.02 C2H075Q01 1.146 C2H069Q01 3.417 C2H069Q01 40.6 C2H269Q01 mg l^-1

Sulphate 355 65 C2H157Q01 251.7 C2H069Q01 479.8 C2H069Q01 1050 C2H160Q01 mg l^-1

Chloride 355 21 C2H069Q01 98.2 C2H069Q01 145.7 C2H069Q01 860 C2H160Q01 mg l^-1

Sodium 355 25.4 C2H069Q01 90.3 C2H069Q01 128.8 C2H069Q01 449 C2H160Q01 mg l^-1

Magnesium 355 8.9 C2H069Q01 41 C2H069Q01 57.3 C2H160Q01 90.7 C2H160Q01 mg l^-1

TDS 355 270 C2H069Q01 746 C2H156Q01 1020 C2H075Q01 2932 C2H160Q01 mg l^-1

Conductivity 355 43.9 C2H069Q01 106.1 C2H069Q01 152.5 C2H069Q01 376 C2H160Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C23E n=355 Class 2: I(Cl Na Mg) II(SO4 TDS EC)

(54) Catchment C23F: Total number of "H...Q" (flow gauging, quality) stations = 3.

Station total n
samples description map
code

C2H172Q01 eye Bovenste Eye at Mooirivier Catchment none

C2H006Q01 48 Mooi River at Klerkskraal Klerkskraal D 106

C2H113Q01 dam Klerkskraal Dam Right Bank Canal on Mooi none

C23F - Stations used: 1, Samples selected: 25 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 25 7.8 C2H006Q01 8.31 C2H006Q01 8.6 C2H006Q01 9.3 C2H006Q01 -log [H⁺]

Fluoride 25 0.05 C2H006Q01 0.1 C2H006Q01 0.2 C2H006Q01 0.2 C2H006Q01 mg l^-1

NO3(N) 25 0.05 C2H006Q01 0.1 C2H006Q01 1 C2H006Q01 1.9 C2H006Q01 mg l^-1

Sulphate 25 5 C2H006Q01 10 C2H006Q01 21.5 C2H006Q01 600 C2H006Q01 mg l^-1

Chloride 25 3 C2H006Q01 5 C2H006Q01 49.5 C2H006Q01 132 C2H006Q01 mg l^-1

Sodium 25 1 C2H006Q01 6.6 C2H006Q01 16 C2H006Q01 97.5 C2H006Q01 mg l^-1

Magnesium 25 9.7 C2H006Q01 29.8 C2H006Q01 34.9 C2H006Q01 66.2 C2H006Q01 mg l^-1

TDS 25 127 C2H006Q01 390 C2H006Q01 515 C2H006Q01 1074 C2H006Q01 mg l^-1

Conductivity 25 29 C2H006Q01 44 C2H006Q01 49 C2H006Q01 149 C2H006Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C23F n=25 Class 1: I(Mg TDS)

(55) Catchment C23G: Total number of "H...Q" (flow gauging, quality) stations = 9.

Station total n
samples description map
code

C2H006Q01 48 Mooi River at Klerkskraal Klerkskraal D 107

C2H113Q01 dam Klerkskraal Dam Right Bank Canal on Mooi none

C2H069Q01 1573 Mooirivierloop River at Blaauwbank 108

C2H171Q01 47 Venterspost Gold Mine Fissure H2O at Ven 109

C2H013Q01 eye Upper Turffontein Eye at Turffontein none

C2H161Q01 82 @ Gravel Rd Bridge to Muiskraal on Mooir 110

C2H011Q01 eye Gerhardminnebron Eye at Gerhardminnebron none

C2H162Q01 83 Mooi River at Rysmierbult Road Bridge U- 111

C2H110Q01 dam Boskop Dam on Mooi River: Left Main CA none

C23G - Stations used: 5, Samples selected: 353 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 353 6.9 C2H069Q01 8.1 C2H006Q01 8.4 C2H006Q01 12.3 C2H171Q01 -log [H⁺]

Fluoride 353 0.05 C2H162Q01 0.31 C2H069Q01 0.39 C2H069Q01 48 C2H171Q01 mg l^-1

NO3(N) 353 0.02 C2H069Q01 0.915 C2H069Q01 2.117 C2H069Q01 7.535 C2H069Q01 mg l^-1

Sulphate 353 5 C2H006Q01 231.2 C2H069Q01 429.4 C2H069Q01 1340 C2H171Q01 mg l^-1

Chloride 353 3 C2H006Q01 93.9 C2H069Q01 129.6 C2H069Q01 205 C2H069Q01 mg l^-1

Sodium 353 1 C2H006Q01 87.8 C2H069Q01 115.7 C2H069Q01 2850 C2H171Q01 mg l^-1

Magnesium 353 1.7 C2H171Q01 39.7 C2H069Q01 54.9 C2H069Q01 72 C2H069Q01 mg l^-1

TDS 353 127 C2H006Q01 724 C2H069Q01 970 C2H069Q01 7038 C2H171Q01 mg l^-1

Conductivity 353 29 C2H006Q01 104.2 C2H069Q01 143.7 C2H069Q01 1271 C2H171Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C23G n=353 Class 2: I(Cl Na Mg TDS EC) II(SO4)

(56) Catchment C23H: Total number of "H...Q" (flow gauging, quality) stations = 7.

Station total n
samples description map
code

C2H110Q01 dam Boskop Dam on Mooi River: Left Main CA none

C2H001Q01 1265 Mooi River at Witrand 112

C2H173Q01 dam Boskop Dam-Main Canal-Pipe Line Potchef none

C2H174Q01 dam Potchefstroom Dam-Canal-Pipeline Potche none

C2H114Q01 dam Potchefstroom Dam on Mooi River: Left CA none

C2H252Q01 dam Mooi River D-S Dam Overflow at Potchefst none

C2H253Q01 13 Mooi River at Road Bridge Potchefstroom 113

C23H - Stations used: 2, Samples selected: 214 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 214 7.7 C2H001Q01 8.24 C2H001Q01 8.39 C2H001Q01 8.81 C2H001Q01 -log [H⁺]

Fluoride 214 0.05 C2H001Q01 0.15 C2H001Q01 0.19 C2H001Q01 0.28 C2H001Q01 mg l^-1

NO3(N) 214 0.02 C2H001Q01 0.305 C2H001Q01 0.51 C2H001Q01 2.285 C2H001Q01 mg l^-1

Sulphate 214 58.1 C2H001Q01 90.3 C2H001Q01 104.6 C2H001Q01 130.3 C2H001Q01 mg l^-1

Chloride 214 16.2 C2H001Q01 22.2 C2H001Q01 24.6 C2H001Q01 34.4 C2H001Q01 mg l^-1

Sodium 214 14.4 C2H001Q01 19.1 C2H001Q01 22.3 C2H001Q01 64 C2H001Q01 mg l^-1

Magnesium 214 12.8 C2H001Q01 45.7 C2H001Q01 50.1 C2H001Q01 61.1 C2H001Q01 mg l^-1

TDS 214 275 C2H001Q01 550 C2H001Q01 600 C2H001Q01 697 C2H001Q01 mg l^-1

Conductivity 214 38.9 C2H001Q01 70.6 C2H001Q01 74.2 C2H001Q01 85.1 C2H001Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C23H n=214 Class 1: I(Mg TDS EC)

(57) Catchment C23J: Total number of "H...Q" (flow gauging, quality) stations = 19.

Station total n
samples description map
code

C2H240Q01 effluent Final Effluent From W&e Driefontein at K none

C2H051Q02 0 Kraalkop on Kraalkop-Eye none

C2H246Q01 57 Loopspruit at Gravel Road Bridge Leeudoo 114

C2H051Q01 eye Kraalkop Eye at Kraalkop none

C2H051Q02 eye Eye + Other Source at Kraalkop none

C2H168Q01 58 Kraalkop Spruit at Old Johannesburg-Potc 115

C2H259Q01 effluent Final Effluent From Wdl South at Eland none

C2H167Q01 64 Elandsfontein Spruit at Johannesburg-Pot 116

C2H264Q01 0 Buffelsdoorn none

C2H263Q01 dam Overflow From Return Water Dam at Buffel none

C2H243Q01 0 Deelkraal 142 Iq none

C2H169Q01 42 Loop Spruit at Losberg-Bank Road Bridge 117

C2H262Q01 effluent Final Effluent From Wedela Sw at Buffels none

C2H166Q01 39 Buffelsdoorn Spruit at Johannesburg-Potc 118

C2H257Q01 effluent Final Effluent From Kokosi Wcw at Kokosi none

C2H258Q01 16 Loopspruit 100m Ds Kokosi Wcw at Kokosi 119

C2H247Q01 43 Loopspruit at Gravel Piet Viljoen Park F 120

C2H170Q01 dam Loopspruit at Outflow From Klipdrift Dam none

C2H116Q01 dam Klipdrif Dam on Loop Spruit: Left Canal none

C23J - Stations used: 10, Samples selected: 81 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 81 6.1 C2H246Q01 7.77 C2H246Q01 8.3 C2H247Q01 9.8 C2H167Q01 -log [H⁺]

Fluoride 81 0.05 C2H168Q01 0.3 C2H167Q01 0.6 C2H246Q01 2.4 C2H166Q01 mg l^-1

NO3(N) 81 0.05 C2H247Q01 6 C2H246Q01 11.63 C2H246Q01 19.6 C2H166Q01 mg l^-1

Sulphate 81 10 C2H168Q01 152.6 C2H167Q01 300.8 C2H246Q01 395 C2H246Q01 mg l^-1

Chloride 81 19 C2H168Q01 89 C2H246Q01 122.9 C2H169Q01 153 C2H246Q01 mg l^-1

Sodium 81 25.7 C2H168Q01 76.3 C2H247Q01 97.8 C2H247Q01 123.8 C2H246Q01 mg l^-1

Magnesium 81 1.6 C2H168Q01 14.5 C2H167Q01 26.8 C2H247Q01 42.5 C2H258Q01 mg l^-1

TDS 81 116 C2H168Q01 530 C2H166Q01 810 C2H247Q01 987 C2H246Q01 mg l^-1

Conductivity 81 17 C2H168Q01 83 C2H246Q01 118.4 C2H247Q01 148 C2H246Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C23J n=81 Class 2: I(SO4 Cl TDS EC) II(NO3)

(58) Catchment C23K: Total number of "H...Q" (flow gauging, quality) stations = 4.

Station total n
samples description map
code

C2H170Q01 dam Loopspruit at Outflow From Klipdrift Dam none

C2H249Q01 dam Loopspruit at Klipdrift Dam O-Flow Klipd none

C2H116Q01 dam Klipdrif Dam on Loop Spruit: Left Canal none

C2H256Q01 64 Loopspruit Potchefstroom-Parys Road at 121

C23K - Stations used: 1, Samples selected: 27 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 27 7.7 C2H256Q01 8.2 C2H256Q01 8.5 C2H256Q01 8.61 C2H256Q01 -log [H⁺]

Fluoride 27 0.05 C2H256Q01 0.24 C2H256Q01 0.4 C2H256Q01 0.4 C2H256Q01 mg l^-1

NO3(N) 27 0.02 C2H256Q01 0.1 C2H256Q01 0.53 C2H256Q01 1.1 C2H256Q01 mg l^-1

Sulphate 27 45 C2H256Q01 101 C2H256Q01 125.3 C2H256Q01 129 C2H256Q01 mg l^-1

Chloride 27 29.1 C2H256Q01 48 C2H256Q01 72.6 C2H256Q01 81 C2H256Q01 mg l^-1

Sodium 27 20.5 C2H256Q01 42.1 C2H256Q01 54.9 C2H256Q01 73.2 C2H256Q01 mg l^-1

Magnesium 27 8.2 C2H256Q01 38.4 C2H256Q01 50.2 C2H256Q01 54.1 C2H256Q01 mg l^-1

TDS 27 293 C2H256Q01 542 C2H256Q01 635 C2H256Q01 717 C2H256Q01 mg l^-1

Conductivity 27 40 C2H256Q01 71 C2H256Q01 82 C2H256Q01 85 C2H256Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C23K n=27 Class 1: I(Mg TDS EC)

(59) Catchment C23L: Total number of "H...Q" (flow gauging, quality) stations = 7.

Station total n
samples description map
code

C2H255Q01 effluent Final Effluent From Potchefstroom Wcw at none

C2H254Q01 44 Mooi River at Potchefstroom Wilgeboom 122

C2H072Q01 314 Mooi River at Taaiboschbult 123

C2H085Q01 6208 Mooi River at Hoogekraal-Kromdraai 124

C2H260Q01 54 Vaal River Low Water Bridge at Kromdraai 125

C2H250Q01 12 Vaalriver Bridge at Scandinawiedrif 126

C2H018Q01 1674 Vaal River at De Vaal-Schoemansdrift 127

C23L - Stations used: 6, Samples selected: 586 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 586 7.18 C2H018Q01 8.18 C2H085Q01 8.65 C2H018Q01 9.5 C2H260Q01 -log [H⁺]

Fluoride 586 0.05 C2H260Q01 0.32 C2H018Q01 0.44 C2H085Q01 3.3 C2H254Q01 mg l^-1

NO3(N) 586 0.02 C2H085Q01 0.68 C2H018Q01 1.8 C2H260Q01 10.4 C2H085Q01 mg l^-1

Sulphate 586 26.6 C2H085Q01 114.3 C2H085Q01 193.5 C2H018Q01 1020 C2H085Q01 mg l^-1

Chloride 586 14 C2H018Q01 50 C2H085Q01 75.2 C2H018Q01 139 C2H085Q01 mg l^-1

Sodium 586 14.8 C2H018Q01 42.8 C2H085Q01 72.3 C2H018Q01 111.8 C2H260Q01 mg l^-1

Magnesium 586 8.5 C2H018Q01 29.2 C2H085Q01 49.5 C2H085Q01 65.4 C2H085Q01 mg l^-1

TDS 586 192 C2H018Q01 574 C2H085Q01 649 C2H018Q01 1438 C2H085Q01 mg l^-1

Conductivity 586 27.5 C2H018Q01 76.8 C2H085Q01 89 C2H018Q01 112.5 C2H085Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C23L n=586 Class 1: I(Mg TDS EC)

(61) Catchment C81B: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C8H015Q01 59 Wilge River at Harrismith Town Lands 128

C81B - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(62) Catchment C81C: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

C8H010Q01 514 Ouberg Spruit at Fraserspruit-Harrismith 129

C8H008Q01 canal Tugela-Vaal Canal at Metz-Sterkfontein D none

C81C - Stations used: 1, Samples selected: 47 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 47 5.61 C8H010Q01 7.78 C8H010Q01 8.06 C8H010Q01 8.33 C8H010Q01 -log [H⁺]

Fluoride 47 0.05 C8H010Q01 0.14 C8H010Q01 0.19 C8H010Q01 0.27 C8H010Q01 mg l^-1

NO3(N) 47 0.02 C8H010Q01 0.042 C8H010Q01 0.11 C8H010Q01 0.412 C8H010Q01 mg l^-1

Sulphate 47 2 C8H010Q01 6.6 C8H010Q01 11.2 C8H010Q01 17.9 C8H010Q01 mg l^-1

Chloride 47 2 C8H010Q01 5 C8H010Q01 9.7 C8H010Q01 15.1 C8H010Q01 mg l^-1

Sodium 47 4.6 C8H010Q01 7.3 C8H010Q01 13.6 C8H010Q01 24.1 C8H010Q01 mg l^-1

Magnesium 47 1.9 C8H010Q01 2.9 C8H010Q01 5.8 C8H010Q01 7.6 C8H010Q01 mg l^-1

TDS 47 48 C8H010Q01 81 C8H010Q01 155 C8H010Q01 216 C8H010Q01 mg l^-1

Conductivity 47 6.4 C8H010Q01 11.4 C8H010Q01 21.8 C8H010Q01 28 C8H010Q01 mS m^-1

Summary of classification: C81C n=47 Class 0

(63) Catchment C81D: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

C8H032Q01 504 at Sterkfonteindam on Nuwejaar Spruit 130

C8H008Q01 canal Tugela-Vaal Canal at Metz-Sterkfontein D none

C81D - Stations used: 1, Samples selected: 106 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 106 7.48 C8H032Q01 7.87 C8H032Q01 8.2 C8H032Q01 8.53 C8H032Q01 -log [H⁺]

Fluoride 106 0.1 C8H032Q01 0.16 C8H032Q01 0.19 C8H032Q01 0.32 C8H032Q01 mg l^-1

NO3(N) 106 0.02 C8H032Q01 0.186 C8H032Q01 0.245 C8H032Q01 1.303 C8H032Q01 mg l^-1

Sulphate 106 2 C8H032Q01 6.1 C8H032Q01 9.6 C8H032Q01 14.3 C8H032Q01 mg l^-1

Chloride 106 2 C8H032Q01 5 C8H032Q01 5 C8H032Q01 11.9 C8H032Q01 mg l^-1

Sodium 106 2.5 C8H032Q01 5.1 C8H032Q01 10.6 C8H032Q01 21.3 C8H032Q01 mg l^-1

Magnesium 106 2.7 C8H032Q01 3.5 C8H032Q01 7 C8H032Q01 10.7 C8H032Q01 mg l^-1

TDS 106 65 C8H032Q01 90 C8H032Q01 159 C8H032Q01 240 C8H032Q01 mg l^-1

Conductivity 106 8.2 C8H032Q01 10.9 C8H032Q01 21.4 C8H032Q01 30.3 C8H032Q01 mS m^-1

Summary of classification: C81D n=106 Class 0

(64) Catchment C81E: Total number of "H...Q" (flow gauging, quality) stations = 4.

Station total n
samples description map
code

C8H002Q01 13 Wilge River at Harrismith 131

C8H015Q01 59 Wilge River at Harrismith Town Lands 132

C8H010Q01 514 Ouberg Spruit at Fraserspruit-Harrismith 133

C8H032Q01 504 at Sterkfonteindam on Nuwejaar Spruit 134

C81E - Stations used: 4, Samples selected: 153 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 153 5.61 C8H010Q01 7.85 C8H032Q01 8.17 C8H032Q01 8.53 C8H032Q01 -log [H⁺]

Fluoride 153 0.05 C8H010Q01 0.15 C8H032Q01 0.19 C8H010Q01 0.32 C8H032Q01 mg l^-1

NO3(N) 153 0.02 C8H010Q01 0.127 C8H010Q01 0.231 C8H032Q01 1.303 C8H032Q01 mg l^-1

Sulphate 153 2 C8H032Q01 6.3 C8H032Q01 10.2 C8H010Q01 17.9 C8H010Q01 mg l^-1

Chloride 153 2 C8H010Q01 5 C8H010Q01 6.3 C8H032Q01 15.1 C8H010Q01 mg l^-1

Sodium 153 2.5 C8H032Q01 5.7 C8H032Q01 11.7 C8H010Q01 24.1 C8H010Q01 mg l^-1

Magnesium 153 1.9 C8H010Q01 3.4 C8H010Q01 6.9 C8H032Q01 10.7 C8H032Q01 mg l^-1

TDS 153 48 C8H010Q01 89 C8H010Q01 160 C8H032Q01 240 C8H032Q01 mg l^-1

Conductivity 153 6.4 C8H010Q01 11.1 C8H032Q01 21.6 C8H032Q01 30.3 C8H032Q01 mS m^-1

Summary of classification: C81E n=153 Class 0

(65) Catchment C81F: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C8H005Q01 869 Elands River Below Qwa Qwa 135

C81F - Stations used: 1, Samples selected: 66 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 66 7.2 C8H005Q01 7.82 C8H005Q01 8.09 C8H005Q01 8.76 C8H005Q01 -log [H⁺]

Fluoride 66 0.1 C8H005Q01 0.14 C8H005Q01 0.19 C8H005Q01 0.32 C8H005Q01 mg l^-1

NO3(N) 66 0.04 C8H005Q01 1.786 C8H005Q01 4.329 C8H005Q01 6.558 C8H005Q01 mg l^-1

Sulphate 66 3 C8H005Q01 12.3 C8H005Q01 17.9 C8H005Q01 37.8 C8H005Q01 mg l^-1

Chloride 66 2.5 C8H005Q01 11.6 C8H005Q01 22 C8H005Q01 26.5 C8H005Q01 mg l^-1

Sodium 66 4.2 C8H005Q01 11.5 C8H005Q01 20.3 C8H005Q01 30.2 C8H005Q01 mg l^-1

Magnesium 66 1.9 C8H005Q01 6.7 C8H005Q01 9.5 C8H005Q01 17.1 C8H005Q01 mg l^-1

TDS 66 66 C8H005Q01 169 C8H005Q01 230 C8H005Q01 267 C8H005Q01 mg l^-1

Conductivity 66 8.9 C8H005Q01 23.5 C8H005Q01 33.1 C8H005Q01 36.3 C8H005Q01 mS m^-1

Summary of classification: C81F n=66 Class 0

(66) Catchment C81G: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C8H006Q01 225 Klerk Spruit at Geduld 136

C81G - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(67) Catchment C81H: Total number of "H...Q" (flow gauging, quality) stations = 3.

Station total n
samples description map
code

C8H011Q01 1294 Elands River at Killarney 137

C8H006Q01 225 Klerk Spruit at Geduld 138

C8H005Q01 869 Elands River Below Qwa Qwa 139

C81H - Stations used: 3, Samples selected: 311 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 311 6.97 C8H011Q01 7.93 C8H011Q01 8.2 C8H011Q01 8.76 C8H005Q01 -log [H⁺]

Fluoride 311 0.05 C8H011Q01 0.14 C8H011Q01 0.2 C8H011Q01 0.32 C8H005Q01 mg l^-1

NO3(N) 311 0.02 C8H011Q01 0.975 C8H011Q01 3.08 C8H005Q01 6.558 C8H005Q01 mg l^-1

Sulphate 311 3 C8H005Q01 12.1 C8H011Q01 16.7 C8H011Q01 37.8 C8H005Q01 mg l^-1

Chloride 311 2.5 C8H011Q01 11 C8H005Q01 19.9 C8H011Q01 29.3 C8H011Q01 mg l^-1

Sodium 311 4.2 C8H005Q01 12.3 C8H011Q01 20.3 C8H011Q01 30.2 C8H005Q01 mg l^-1

Magnesium 311 1.9 C8H005Q01 8.5 C8H005Q01 13 C8H011Q01 18 C8H011Q01 mg l^-1

TDS 311 59 C8H011Q01 195 C8H005Q01 260 C8H011Q01 298 C8H011Q01 mg l^-1

Conductivity 311 8.3 C8H011Q01 26.6 C8H011Q01 35.6 C8H011Q01 40.1 C8H011Q01 mS m^-1

Summary of classification: C81H n=311 Class 0

(68) Catchment C81J: Total number of "H...Q" (flow gauging, quality) stations = 4.

Station total n
samples description map
code

C8H024Q01 46 Middel Spruit at Middelspruit 140

C8H012Q01 372 at Voorspoed on Vaalbank Spruit 141

C8H013Q01 217 at Vaalbank 327 on Vaalbank Spruit 142

C8H025Q01 157 Vaalbank Spruit at Rustkop 143

C81J - Stations used: 4, 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 7.27 C8H013Q01 8.27 C8H012Q01 8.45 C8H012Q01 8.74 C8H013Q01 -log [H⁺]

Fluoride 107 0.26 C8H012Q01 0.4 C8H012Q01 0.52 C8H013Q01 0.84 C8H013Q01 mg l^-1

NO3(N) 107 0.02 C8H012Q01 0.04 C8H012Q01 0.076 C8H013Q01 0.766 C8H013Q01 mg l^-1

Sulphate 107 8.4 C8H012Q01 19.1 C8H012Q01 31.8 C8H013Q01 81.6 C8H013Q01 mg l^-1

Chloride 107 5 C8H012Q01 15.5 C8H012Q01 23 C8H013Q01 30.9 C8H013Q01 mg l^-1

Sodium 107 16.2 C8H013Q01 45.9 C8H012Q01 72.4 C8H013Q01 118.2 C8H013Q01 mg l^-1

Magnesium 107 6 C8H012Q01 10.5 C8H013Q01 13.4 C8H013Q01 15.8 C8H013Q01 mg l^-1

TDS 107 188 C8H013Q01 357 C8H012Q01 451 C8H013Q01 563 C8H013Q01 mg l^-1

Conductivity 107 23.7 C8H013Q01 44.8 C8H013Q01 56.5 C8H012Q01 70.1 C8H013Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C81J n=107 Class 1: I(TDS)

(69) Catchment C81K: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

C8H012Q01 372 at Voorspoed on Vaalbank Spruit 144

C8H011Q01 1294 Elands River at Killarney 145

C81K - Stations used: 2, Samples selected: 304 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 304 6.97 C8H011Q01 8.03 C8H011Q01 8.3 C8H011Q01 8.59 C8H012Q01 -log [H⁺]

Fluoride 304 0.05 C8H011Q01 0.16 C8H011Q01 0.39 C8H012Q01 0.69 C8H012Q01 mg l^-1

NO3(N) 304 0.02 C8H011Q01 0.722 C8H011Q01 2.501 C8H011Q01 3.962 C8H011Q01 mg l^-1

Sulphate 304 3 C8H011Q01 12.7 C8H011Q01 19.7 C8H011Q01 41.9 C8H012Q01 mg l^-1

Chloride 304 2.5 C8H011Q01 12.1 C8H011Q01 19.8 C8H012Q01 29.3 C8H011Q01 mg l^-1

Sodium 304 4.4 C8H011Q01 14.6 C8H011Q01 41.5 C8H012Q01 82.5 C8H012Q01 mg l^-1

Magnesium 304 2.2 C8H011Q01 9.6 C8H012Q01 13.2 C8H011Q01 18 C8H011Q01 mg l^-1

TDS 304 59 C8H011Q01 224 C8H011Q01 343 C8H012Q01 481 C8H012Q01 mg l^-1

Conductivity 304 8.3 C8H011Q01 30.1 C8H011Q01 43 C8H012Q01 59 C8H012Q01 mS m^-1

Summary of classification: C81K n=304 Class 0

(71) Catchment C81M: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C8H023Q01 960 at The Willows on Meul River 146

C81M - Stations used: 1, Samples selected: 251 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 251 7.03 C8H023Q01 8.06 C8H023Q01 8.37 C8H023Q01 8.97 C8H023Q01 -log [H⁺]

Fluoride 251 0.1 C8H023Q01 0.24 C8H023Q01 0.32 C8H023Q01 0.74 C8H023Q01 mg l^-1

NO3(N) 251 0.02 C8H023Q01 0.073 C8H023Q01 0.162 C8H023Q01 1.744 C8H023Q01 mg l^-1

Sulphate 251 2 C8H023Q01 13.6 C8H023Q01 20.5 C8H023Q01 43.5 C8H023Q01 mg l^-1

Chloride 251 2.5 C8H023Q01 10.1 C8H023Q01 15.3 C8H023Q01 44.7 C8H023Q01 mg l^-1

Sodium 251 4.3 C8H023Q01 16.9 C8H023Q01 29.5 C8H023Q01 41.7 C8H023Q01 mg l^-1

Magnesium 251 1.2 C8H023Q01 6.9 C8H023Q01 12.8 C8H023Q01 19.6 C8H023Q01 mg l^-1

TDS 251 52 C8H023Q01 186 C8H023Q01 284 C8H023Q01 320 C8H023Q01 mg l^-1

Conductivity 251 6.9 C8H023Q01 25.2 C8H023Q01 37.5 C8H023Q01 41.9 C8H023Q01 mS m^-1

Summary of classification: C81M n=251 Class 0

(73) Catchment C82B: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C8H003Q01 859 at Warden on Cornelisrivier 147

C82B - Stations used: 1, Samples selected: 152 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 152 6.9 C8H003Q01 8.04 C8H003Q01 8.27 C8H003Q01 8.57 C8H003Q01 -log [H⁺]

Fluoride 152 0.14 C8H003Q01 0.29 C8H003Q01 0.38 C8H003Q01 0.48 C8H003Q01 mg l^-1

NO3(N) 152 0.02 C8H003Q01 0.044 C8H003Q01 0.168 C8H003Q01 1.306 C8H003Q01 mg l^-1

Sulphate 152 6.2 C8H003Q01 16 C8H003Q01 24.3 C8H003Q01 40.1 C8H003Q01 mg l^-1

Chloride 152 5 C8H003Q01 12.7 C8H003Q01 18.2 C8H003Q01 23.8 C8H003Q01 mg l^-1

Sodium 152 8.2 C8H003Q01 19.2 C8H003Q01 28.6 C8H003Q01 35.1 C8H003Q01 mg l^-1

Magnesium 152 2.5 C8H003Q01 10.6 C8H003Q01 15.7 C8H003Q01 19.9 C8H003Q01 mg l^-1

TDS 152 75 C8H003Q01 232 C8H003Q01 320 C8H003Q01 403 C8H003Q01 mg l^-1

Conductivity 152 9.9 C8H003Q01 30.8 C8H003Q01 41.6 C8H003Q01 53 C8H003Q01 mS m^-1

Summary of classification: C82B n=152 Class 0

(74) Catchment C82C: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

C8H028Q01 585 Wilge River at Bavaria Flood Section 148

C8H014Q01 616 Wilge River at Bavaria 149

C82C - Stations used: 2, Samples selected: 129 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 129 6.53 C8H028Q01 8 C8H028Q01 8.38 C8H028Q01 9.39 C8H028Q01 -log [H⁺]

Fluoride 129 0.05 C8H028Q01 0.18 C8H028Q01 0.25 C8H028Q01 0.35 C8H028Q01 mg l^-1

NO3(N) 129 0.02 C8H028Q01 0.201 C8H028Q01 0.658 C8H028Q01 2.561 C8H028Q01 mg l^-1

Sulphate 129 5.3 C8H028Q01 13.7 C8H028Q01 19.1 C8H028Q01 33.2 C8H028Q01 mg l^-1

Chloride 129 2 C8H028Q01 10 C8H028Q01 19.5 C8H028Q01 31.8 C8H028Q01 mg l^-1

Sodium 129 3.1 C8H028Q01 13.5 C8H028Q01 23.9 C8H028Q01 35.9 C8H028Q01 mg l^-1

Magnesium 129 1.9 C8H028Q01 7.6 C8H028Q01 13.1 C8H028Q01 26.5 C8H028Q01 mg l^-1

TDS 129 58 C8H028Q01 173 C8H028Q01 279 C8H028Q01 393 C8H028Q01 mg l^-1

Conductivity 129 8.1 C8H028Q01 24.1 C8H028Q01 37.4 C8H028Q01 50 C8H028Q01 mS m^-1

Summary of classification: C82C n=129 Class 0

(76) Catchment C82E: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C8H018Q01 720 Hol Spruit at Davidsdale 150

C82E - Stations used: 1, Samples selected: 175 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 175 6.06 C8H018Q01 8.26 C8H018Q01 8.46 C8H018Q01 8.69 C8H018Q01 -log [H⁺]

Fluoride 175 0.22 C8H018Q01 0.3 C8H018Q01 0.48 C8H018Q01 0.58 C8H018Q01 mg l^-1

NO3(N) 175 0.02 C8H018Q01 0.055 C8H018Q01 0.274 C8H018Q01 1.013 C8H018Q01 mg l^-1

Sulphate 175 8.6 C8H018Q01 23.9 C8H018Q01 31.1 C8H018Q01 48.6 C8H018Q01 mg l^-1

Chloride 175 5 C8H018Q01 14.3 C8H018Q01 20 C8H018Q01 44.8 C8H018Q01 mg l^-1

Sodium 175 9.7 C8H018Q01 27.9 C8H018Q01 40.2 C8H018Q01 47.3 C8H018Q01 mg l^-1

Magnesium 175 5.3 C8H018Q01 18.4 C8H018Q01 27.3 C8H018Q01 37.3 C8H018Q01 mg l^-1

TDS 175 144 C8H018Q01 351 C8H018Q01 454 C8H018Q01 518 C8H018Q01 mg l^-1

Conductivity 175 19.4 C8H018Q01 44.4 C8H018Q01 55.9 C8H018Q01 64.6 C8H018Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C82E n=175 Class 1: I(TDS)

(78) Catchment C82G: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C8H018Q01 720 Hol Spruit at Davidsdale 151

C82G - Stations used: 1, Samples selected: 175 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 175 6.06 C8H018Q01 8.26 C8H018Q01 8.46 C8H018Q01 8.69 C8H018Q01 -log [H⁺]

Fluoride 175 0.22 C8H018Q01 0.3 C8H018Q01 0.48 C8H018Q01 0.58 C8H018Q01 mg l^-1

NO3(N) 175 0.02 C8H018Q01 0.055 C8H018Q01 0.274 C8H018Q01 1.013 C8H018Q01 mg l^-1

Sulphate 175 8.6 C8H018Q01 23.9 C8H018Q01 31.1 C8H018Q01 48.6 C8H018Q01 mg l^-1

Chloride 175 5 C8H018Q01 14.3 C8H018Q01 20 C8H018Q01 44.8 C8H018Q01 mg l^-1

Sodium 175 9.7 C8H018Q01 27.9 C8H018Q01 40.2 C8H018Q01 47.3 C8H018Q01 mg l^-1

Magnesium 175 5.3 C8H018Q01 18.4 C8H018Q01 27.3 C8H018Q01 37.3 C8H018Q01 mg l^-1

TDS 175 144 C8H018Q01 351 C8H018Q01 454 C8H018Q01 518 C8H018Q01 mg l^-1

Conductivity 175 19.4 C8H018Q01 44.4 C8H018Q01 55.9 C8H018Q01 64.6 C8H018Q01 mS m^-1

Summary of classification (consituents in each range in brackets): C82G n=175 Class 1: I(TDS)

(79) Catchment C82H: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C8H027Q01 1059 at Ballingtomp on Wilge River 152

C82H - Stations used: 1, Samples selected: 235 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 235 7.2 C8H027Q01 8.03 C8H027Q01 8.31 C8H027Q01 8.58 C8H027Q01 -log [H⁺]

Fluoride 235 0.1 C8H027Q01 0.19 C8H027Q01 0.24 C8H027Q01 0.33 C8H027Q01 mg l^-1

NO3(N) 235 0.02 C8H027Q01 0.137 C8H027Q01 0.514 C8H027Q01 2.03 C8H027Q01 mg l^-1

Sulphate 235 2 C8H027Q01 15.2 C8H027Q01 21.1 C8H027Q01 29.3 C8H027Q01 mg l^-1

Chloride 235 2.5 C8H027Q01 9.5 C8H027Q01 15.6 C8H027Q01 27.4 C8H027Q01 mg l^-1

Sodium 235 5.2 C8H027Q01 13.2 C8H027Q01 22.4 C8H027Q01 29.7 C8H027Q01 mg l^-1

Magnesium 235 1.9 C8H027Q01 8.3 C8H027Q01 16.3 C8H027Q01 19.2 C8H027Q01 mg l^-1

TDS 235 71 C8H027Q01 184 C8H027Q01 305 C8H027Q01 327 C8H027Q01 mg l^-1

Conductivity 235 9.1 C8H027Q01 25.3 C8H027Q01 39.9 C8H027Q01 44.8 C8H027Q01 mS m^-1

Summary of classification: C82H n=235 Class 0

(80) Catchment C83A: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C8H036Q01 tunnel As River Tunnel Outlet From Katse at Bot none

C83A - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(82) Catchment C83C: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C8H007Q01 118 Liebenbergsvlei River at Vogelfontein 153

C83C - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(83) Catchment C83D: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C8H009Q01 552 at Tijger Hoek on Tierkloof River 154

C83D - Stations used: 1, Samples selected: 203 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 203 7.11 C8H009Q01 8.18 C8H009Q01 8.37 C8H009Q01 8.52 C8H009Q01 -log [H⁺]

Fluoride 203 0.13 C8H009Q01 0.34 C8H009Q01 0.44 C8H009Q01 0.49 C8H009Q01 mg l^-1

NO3(N) 203 0.02 C8H009Q01 0.04 C8H009Q01 0.107 C8H009Q01 0.658 C8H009Q01 mg l^-1

Sulphate 203 8.8 C8H009Q01 21.5 C8H009Q01 30.5 C8H009Q01 46.7 C8H009Q01 mg l^-1

Chloride 203 5 C8H009Q01 14 C8H009Q01 22.1 C8H009Q01 27.7 C8H009Q01 mg l^-1

Sodium 203 11.1 C8H009Q01 35.1 C8H009Q01 50.2 C8H009Q01 60.2 C8H009Q01 mg l^-1

Magnesium 203 4.8 C8H009Q01 12.6 C8H009Q01 16.4 C8H009Q01 25.2 C8H009Q01 mg l^-1

TDS 203 148 C8H009Q01 325 C8H009Q01 421 C8H009Q01 475 C8H009Q01 mg l^-1

Conductivity 203 18.8 C8H009Q01 41.3 C8H009Q01 52.4 C8H009Q01 59.5 C8H009Q01 mS m^-1

Summary of classification: C83D n=203 Class 0

(84) Catchment C83E: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C8H009Q01 552 at Tijger Hoek on Tierkloof River 155

C83E - Stations used: 1, Samples selected: 203 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 203 7.11 C8H009Q01 8.18 C8H009Q01 8.37 C8H009Q01 8.52 C8H009Q01 -log [H⁺]

Fluoride 203 0.13 C8H009Q01 0.34 C8H009Q01 0.44 C8H009Q01 0.49 C8H009Q01 mg l^-1

NO3(N) 203 0.02 C8H009Q01 0.04 C8H009Q01 0.107 C8H009Q01 0.658 C8H009Q01 mg l^-1

Sulphate 203 8.8 C8H009Q01 21.5 C8H009Q01 30.5 C8H009Q01 46.7 C8H009Q01 mg l^-1

Chloride 203 5 C8H009Q01 14 C8H009Q01 22.1 C8H009Q01 27.7 C8H009Q01 mg l^-1

Sodium 203 11.1 C8H009Q01 35.1 C8H009Q01 50.2 C8H009Q01 60.2 C8H009Q01 mg l^-1

Magnesium 203 4.8 C8H009Q01 12.6 C8H009Q01 16.4 C8H009Q01 25.2 C8H009Q01 mg l^-1

TDS 203 148 C8H009Q01 325 C8H009Q01 421 C8H009Q01 475 C8H009Q01 mg l^-1

Conductivity 203 18.8 C8H009Q01 41.3 C8H009Q01 52.4 C8H009Q01 59.5 C8H009Q01 mS m^-1

Summary of classification: C83E n=203 Class 0

(85) Catchment C83F: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

C8H020Q01 565 Liebenbergsvlei River at Roodekraal 156

C8H004Q01 1015 Liebenbergsvlei River at De Molen-De Wel 157

C83F - Stations used: 2, Samples selected: 256 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 256 6.63 C8H020Q01 7.81 C8H020Q01 8.03 C8H020Q01 8.52 C8H020Q01 -log [H⁺]

Fluoride 256 0.05 C8H020Q01 0.12 C8H020Q01 0.16 C8H020Q01 0.24 C8H020Q01 mg l^-1

NO3(N) 256 0.02 C8H020Q01 0.136 C8H020Q01 0.205 C8H020Q01 0.451 C8H020Q01 mg l^-1

Sulphate 256 2 C8H020Q01 7.8 C8H020Q01 13.7 C8H020Q01 33.9 C8H020Q01 mg l^-1

Chloride 256 2 C8H020Q01 5 C8H020Q01 5 C8H020Q01 14.9 C8H020Q01 mg l^-1

Sodium 256 1 C8H020Q01 3.5 C8H020Q01 6.6 C8H020Q01 25.2 C8H020Q01 mg l^-1

Magnesium 256 2.7 C8H020Q01 3.9 C8H020Q01 4.9 C8H020Q01 11.6 C8H020Q01 mg l^-1

TDS 256 61 C8H020Q01 84 C8H020Q01 114 C8H020Q01 272 C8H020Q01 mg l^-1

Conductivity 256 9.4 C8H020Q01 11 C8H020Q01 14.6 C8H020Q01 36.1 C8H020Q01 mS m^-1

Summary of classification: C83F n=256 Class 0

(86) Catchment C83G: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C8H020Q01 565 Liebenbergsvlei River at Roodekraal 158

C83G - Stations used: 1, Samples selected: 255 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 255 6.63 C8H020Q01 7.81 C8H020Q01 8.03 C8H020Q01 8.52 C8H020Q01 -log [H⁺]

Fluoride 255 0.05 C8H020Q01 0.12 C8H020Q01 0.16 C8H020Q01 0.24 C8H020Q01 mg l^-1

NO3(N) 255 0.02 C8H020Q01 0.136 C8H020Q01 0.205 C8H020Q01 0.451 C8H020Q01 mg l^-1

Sulphate 255 2 C8H020Q01 7.8 C8H020Q01 13.7 C8H020Q01 33.9 C8H020Q01 mg l^-1

Chloride 255 2 C8H020Q01 5 C8H020Q01 5 C8H020Q01 14.9 C8H020Q01 mg l^-1

Sodium 255 1 C8H020Q01 3.5 C8H020Q01 6.6 C8H020Q01 25.2 C8H020Q01 mg l^-1

Magnesium 255 2.7 C8H020Q01 3.9 C8H020Q01 4.9 C8H020Q01 11.6 C8H020Q01 mg l^-1

TDS 255 61 C8H020Q01 84 C8H020Q01 114 C8H020Q01 272 C8H020Q01 mg l^-1

Conductivity 255 9.4 C8H020Q01 11 C8H020Q01 14.7 C8H020Q01 36.1 C8H020Q01 mS m^-1

Summary of classification: C83G n=255 Class 0

(87) Catchment C83H: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

C8H026Q02 0 Frederiksdal-Ec Logger Point Not Regis none

C8H026Q01 967 at Frederiksdal on Liebenbergsvlei River 159

C83H - Stations used: 2, Samples selected: 256 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 256 7.18 C8H026Q01 7.86 C8H026Q01 8.05 C8H026Q01 8.55 C8H026Q01 -log [H⁺]

Fluoride 256 0.05 C8H026Q01 0.11 C8H026Q01 0.18 C8H026Q01 0.37 C8H026Q01 mg l^-1

NO3(N) 256 0.02 C8H026Q01 0.141 C8H026Q01 0.221 C8H026Q01 3.648 C8H026Q01 mg l^-1

Sulphate 256 2 C8H026Q01 8 C8H026Q01 14.8 C8H026Q01 69.1 C8H026Q01 mg l^-1

Chloride 256 2 C8H026Q01 5 C8H026Q01 5 C8H026Q01 60.9 C8H026Q01 mg l^-1

Sodium 256 1 C8H026Q01 3.6 C8H026Q01 7.7 C8H026Q01 65.8 C8H026Q01 mg l^-1

Magnesium 256 1.7 C8H026Q01 4 C8H026Q01 5.7 C8H026Q01 20 C8H026Q01 mg l^-1

TDS 256 65 C8H026Q01 86 C8H026Q01 129 C8H026Q01 512 C8H026Q01 mg l^-1

Conductivity 256 9.2 C8H026Q01 11.2 C8H026Q01 17 C8H026Q01 68.7 C8H026Q01 mS m^-1

Summary of classification: C83H n=256 Class 0

(88) Catchment C83J: Total number of "H...Q" (flow gauging, quality) stations = 4.

Station total n
samples description map
code

C8H001Q02 0 Frankfort-Ec Logger Point Not Register none

C8H001Q01 1531 Wilge River at Frankfort 160

C8H022Q01 449 Wilge River at Slabberts-Kimberley 161

C8H021Q01 15 Skulp Spruit at Kalkoen 162

C83J - Stations used: 4, Samples selected: 379 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 379 6.38 C8H022Q01 7.82 C8H001Q01 8.08 C8H001Q01 8.66 C8H022Q01 -log [H⁺]

Fluoride 379 0.05 C8H022Q01 0.12 C8H001Q01 0.18 C8H022Q01 0.52 C8H001Q01 mg l^-1

NO3(N) 379 0.02 C8H001Q01 0.147 C8H022Q01 0.313 C8H001Q01 0.896 C8H022Q01 mg l^-1

Sulphate 379 2 C8H001Q01 8.7 C8H001Q01 15.5 C8H001Q01 45.4 C8H022Q01 mg l^-1

Chloride 379 2 C8H001Q01 5 C8H001Q01 6 C8H022Q01 21.8 C8H022Q01 mg l^-1

Sodium 379 1 C8H001Q01 4.7 C8H001Q01 9.1 C8H001Q01 23.6 C8H022Q01 mg l^-1

Magnesium 379 2 C8H001Q01 4.2 C8H001Q01 5.9 C8H001Q01 21.5 C8H022Q01 mg l^-1

TDS 379 66 C8H022Q01 92 C8H022Q01 130 C8H022Q01 358 C8H022Q01 mg l^-1

Conductivity 379 9.6 C8H001Q01 12.6 C8H001Q01 17.6 C8H022Q01 47 C8H022Q01 mS m^-1

Summary of classification: C83J n=379 Class 0

(89) Catchment C83K: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C8H016Q01 161 Krom Spruit at Cosmos 163

C83K - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(90) Catchment C83L: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

C8H017Q01 173 Klip Spruit at Klipoog 164

C83L - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(91) Catchment C83M: Total number of "H...Q" (flow gauging, quality) stations = 4.

Station total n
samples description map
code

C8H017Q01 173 Klip Spruit at Klipoog 165

C8H016Q01 161 Krom Spruit at Cosmos 166

C8H001Q02 0 Frankfort-Ec Logger Point Not Register none

C8H001Q01 1531 Wilge River at Frankfort 167

C83M - Stations used: 4, Samples selected: 254 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 254 6.85 C8H001Q01 7.86 C8H001Q01 8.09 C8H001Q01 8.29 C8H001Q01 -log [H⁺]

Fluoride 254 0.05 C8H001Q01 0.12 C8H001Q01 0.19 C8H001Q01 0.52 C8H001Q01 mg l^-1

NO3(N) 254 0.02 C8H001Q01 0.153 C8H001Q01 0.319 C8H001Q01 0.656 C8H001Q01 mg l^-1

Sulphate 254 2 C8H001Q01 8.7 C8H001Q01 15.5 C8H001Q01 26 C8H001Q01 mg l^-1

Chloride 254 2 C8H001Q01 5 C8H001Q01 5.9 C8H001Q01 11.8 C8H001Q01 mg l^-1

Sodium 254 1 C8H001Q01 4.7 C8H001Q01 8.8 C8H001Q01 19.2 C8H001Q01 mg l^-1

Magnesium 254 2 C8H001Q01 4.2 C8H001Q01 5.9 C8H001Q01 11.5 C8H001Q01 mg l^-1

TDS 254 68 C8H001Q01 93 C8H001Q01 130 C8H001Q01 195 C8H001Q01 mg l^-1

Conductivity 254 9.6 C8H001Q01 12.7 C8H001Q01 17.6 C8H001Q01 26.1 C8H001Q01 mS m^-1

Summary of classification: C83M n=254 Class 0

(92) Catchment V11A: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

V1H033Q01 187 Tugela River at Wan Hoop-Clifford Chambe 168

V11A - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(93) Catchment V11C: Total number of "H...Q" (flow gauging, quality) stations = 4.

Station total n
samples description map
code

V1H048Q01 106 Tugela River at Wan Hoop-up Stream Woods 169

V1H032Q01 184 Putterill Spruit at Wan Hoop 170

V1H033Q01 187 Tugela River at Wan Hoop-Clifford Chambe 171

V1H034Q01 188 Kombe River at Groot Geluk 172

V11C - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(94) Catchment V11D: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

V1H035Q01 canal Tugela Canal at Second none

V1H040Q01 canal Tuva Canal at Woodstock none

V11D - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(95) Catchment V11F: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

V1H026Q01 990 Tugela River at Kleine Waterval 173

V1H031Q01 399 at Kleine Waterval Bergville on Sandspru 174

V11F - Stations used: 2, Samples selected: 68 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 68 6.89 V1H031Q01 7.56 V1H031Q01 7.91 V1H031Q01 8.15 V1H031Q01 -log [H⁺]

Fluoride 68 0.05 V1H031Q01 0.12 V1H026Q01 0.23 V1H031Q01 0.28 V1H031Q01 mg l^-1

NO3(N) 68 0.02 V1H026Q01 0.147 V1H026Q01 0.26 V1H026Q01 1.246 V1H031Q01 mg l^-1

Sulphate 68 2 V1H026Q01 5.8 V1H026Q01 16.6 V1H031Q01 75.2 V1H026Q01 mg l^-1

Chloride 68 2 V1H026Q01 5 V1H026Q01 11.2 V1H031Q01 14.6 V1H031Q01 mg l^-1

Sodium 68 1 V1H026Q01 3.8 V1H026Q01 11.4 V1H031Q01 14.7 V1H031Q01 mg l^-1

Magnesium 68 1.4 V1H026Q01 2.8 V1H026Q01 6.8 V1H031Q01 8.2 V1H031Q01 mg l^-1

TDS 68 36 V1H026Q01 64 V1H026Q01 144 V1H031Q01 159 V1H031Q01 mg l^-1

Conductivity 68 5.4 V1H026Q01 8.8 V1H026Q01 19.4 V1H031Q01 25.1 V1H026Q01 mS m^-1

Summary of classification: V11F n=68 Class 0

(96) Catchment V11K: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

V1H029Q01 241 at Schoonspruit on Geluksburgspruit 175

V1H030Q01 220 Njongola River at Strydhoek 176

V11K - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(100) Catchment V31A: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

V3H028Q01 dam Zaaihoek Dam: Down Stream Weir none

V31A - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(101) Catchment V31B: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

V3H005Q01 340 Slang River at Vlakdrift 177

V3H028Q01 dam Zaaihoek Dam: Down Stream Weir none

V31B - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(102) Catchment V31C: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

V3H002Q01 637 at Schurvepoort on Buffelsrivier 178

V31C - Stations used: 1, Samples selected: 47 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 47 6.92 V3H002Q01 7.88 V3H002Q01 8.2 V3H002Q01 8.35 V3H002Q01 -log [H⁺]

Fluoride 47 0.1 V3H002Q01 0.15 V3H002Q01 0.19 V3H002Q01 0.39 V3H002Q01 mg l^-1

NO3(N) 47 0.02 V3H002Q01 0.09 V3H002Q01 0.53 V3H002Q01 1.105 V3H002Q01 mg l^-1

Sulphate 47 2 V3H002Q01 10.6 V3H002Q01 16.6 V3H002Q01 52 V3H002Q01 mg l^-1

Chloride 47 2.5 V3H002Q01 5 V3H002Q01 9.6 V3H002Q01 14.6 V3H002Q01 mg l^-1

Sodium 47 2.6 V3H002Q01 7 V3H002Q01 10.8 V3H002Q01 32.1 V3H002Q01 mg l^-1

Magnesium 47 2.1 V3H002Q01 8 V3H002Q01 13.3 V3H002Q01 20.3 V3H002Q01 mg l^-1

TDS 47 60 V3H002Q01 127 V3H002Q01 184 V3H002Q01 362 V3H002Q01 mg l^-1

Conductivity 47 7.9 V3H002Q01 18.7 V3H002Q01 24.6 V3H002Q01 45.3 V3H002Q01 mS m^-1

Summary of classification: V31C n=47 Class 0

(103) Catchment V31E: Total number of "H...Q" (flow gauging, quality) stations = 9.

Station total n
samples description map
code

V3H026Q01 dam Ntsingwayo Chelmsford Dam on Ngagane R none

V3H027Q01 dam Ntshingwayo Chelmsford Dam on Ngagane none

V3H017Q01 68 Spectacle Spruit at Spectacle Spruit Nts 179

V3H016Q01 70 Klip Spruit at B of Bradford-Normandien 180

V3H020Q01 75 Kalbas River at Lilydale-Kalbaskop Cfr 181

V3H013Q01 69 Mahlomyane River at Doornpoort Cfr 4 182

V3H014Q01 68 Ngagane River at Bidford-Nooitgedacht C 183

V3H012Q01 70 at Sleutelpoort Cfr 5 on Fouriespruit 184

V3H019Q01 71 Manzamnyama River at Lilydale Cfr 2 185

V31E - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(104) Catchment V31H: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

V3H007Q01 471 Ncandu River at Rust 186

V31H - Stations used: 1, Samples selected: 46 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 46 6.49 V3H007Q01 7.64 V3H007Q01 7.93 V3H007Q01 8.65 V3H007Q01 -log [H⁺]

Fluoride 46 0.05 V3H007Q01 0.12 V3H007Q01 0.16 V3H007Q01 0.19 V3H007Q01 mg l^-1

NO3(N) 46 0.02 V3H007Q01 0.051 V3H007Q01 0.137 V3H007Q01 0.429 V3H007Q01 mg l^-1

Sulphate 46 2 V3H007Q01 7.1 V3H007Q01 13.5 V3H007Q01 68.2 V3H007Q01 mg l^-1

Chloride 46 2 V3H007Q01 5 V3H007Q01 6.3 V3H007Q01 9.3 V3H007Q01 mg l^-1

Sodium 46 2.2 V3H007Q01 4.6 V3H007Q01 5.7 V3H007Q01 22 V3H007Q01 mg l^-1

Magnesium 46 1.6 V3H007Q01 2.7 V3H007Q01 4 V3H007Q01 9.9 V3H007Q01 mg l^-1

TDS 46 43 V3H007Q01 67 V3H007Q01 88 V3H007Q01 161 V3H007Q01 mg l^-1

Conductivity 46 6.6 V3H007Q01 9.3 V3H007Q01 13.6 V3H007Q01 22.7 V3H007Q01 mS m^-1

Summary of classification: V31H n=46 Class 0

(105) Catchment V60A: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

V6H006Q01 363 Sundays River at Waterfall 187

V60A - not classified: 4 samples between 2001-01-01 and 2005-12-31, 4 valid samples. Require at least 5.

Processing dam monitoring points:

(1) Checked C2R003Q01 (Klerkskraal) for valid samples...

Quaternary V60A, dam station: C2R003Q01, Samples selected: 49 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 49 7.39 C2R003Q01 8.29 C2R003Q01 8.45 C2R003Q01 8.62 C2R003Q01 -log [H⁺]

Fluoride 49 0.05 C2R003Q01 0.14 C2R003Q01 0.19 C2R003Q01 0.32 C2R003Q01 mg l^-1

NO3(N) 49 0.02 C2R003Q01 0.055 C2R003Q01 0.199 C2R003Q01 0.374 C2R003Q01 mg l^-1

Sulphate 49 2 C2R003Q01 6 C2R003Q01 95.8 C2R003Q01 106.7 C2R003Q01 mg l^-1

Chloride 49 2.5 C2R003Q01 5 C2R003Q01 21.3 C2R003Q01 25.2 C2R003Q01 mg l^-1

Sodium 49 2.3 C2R003Q01 4.4 C2R003Q01 19 C2R003Q01 22.4 C2R003Q01 mg l^-1

Magnesium 49 16.5 C2R003Q01 32 C2R003Q01 39.4 C2R003Q01 47.1 C2R003Q01 mg l^-1

TDS 49 253 C2R003Q01 394 C2R003Q01 490 C2R003Q01 517 C2R003Q01 mg l^-1

Conductivity 49 31.1 C2R003Q01 46.7 C2R003Q01 64.2 C2R003Q01 69.1 C2R003Q01 mS m^-1

(2) Checked C2R001Q01 (Boskop) for valid samples...

Quaternary V60A, dam station: C2R001Q01, Samples selected: 188 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 188 7.75 C2R001Q01 8.4 C2R001Q01 8.52 C2R001Q01 8.68 C2R001Q01 -log [H⁺]

Fluoride 188 0.05 C2R001Q01 0.14 C2R001Q01 0.18 C2R001Q01 0.23 C2R001Q01 mg l^-1

NO3(N) 188 0.02 C2R001Q01 0.2 C2R001Q01 0.412 C2R001Q01 1.27 C2R001Q01 mg l^-1

Sulphate 188 4.1 C2R001Q01 101.3 C2R001Q01 111.2 C2R001Q01 122.5 C2R001Q01 mg l^-1

Chloride 188 5 C2R001Q01 23.1 C2R001Q01 25.6 C2R001Q01 30 C2R001Q01 mg l^-1

Sodium 188 3.7 C2R001Q01 21.2 C2R001Q01 23.3 C2R001Q01 25.5 C2R001Q01 mg l^-1

Magnesium 188 30.6 C2R001Q01 42 C2R001Q01 45.6 C2R001Q01 48.2 C2R001Q01 mg l^-1

TDS 188 382 C2R001Q01 499 C2R001Q01 530 C2R001Q01 542 C2R001Q01 mg l^-1

Conductivity 188 45.7 C2R001Q01 65.2 C2R001Q01 68.4 C2R001Q01 70.2 C2R001Q01 mS m^-1

(3) Checked C2R005Q01 (Klipdrif) for valid samples...

Quaternary V60A, dam station: C2R005Q01, Samples selected: 245 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 245 6.13 C2R005Q01 8.26 C2R005Q01 8.74 C2R005Q01 9.53 C2R005Q01 -log [H⁺]

Fluoride 245 0.05 C2R005Q01 0.33 C2R005Q01 0.42 C2R005Q01 0.54 C2R005Q01 mg l^-1

NO3(N) 245 0.02 C2R005Q01 0.176 C2R005Q01 0.55 C2R005Q01 3.852 C2R005Q01 mg l^-1

Sulphate 245 27.2 C2R005Q01 103.5 C2R005Q01 141.7 C2R005Q01 175.6 C2R005Q01 mg l^-1

Chloride 245 14.7 C2R005Q01 64.3 C2R005Q01 90.1 C2R005Q01 108.9 C2R005Q01 mg l^-1

Sodium 245 16.9 C2R005Q01 62.2 C2R005Q01 81.8 C2R005Q01 102.4 C2R005Q01 mg l^-1

Magnesium 245 13.1 C2R005Q01 27.6 C2R005Q01 33.9 C2R005Q01 37.7 C2R005Q01 mg l^-1

TDS 245 233 C2R005Q01 484 C2R005Q01 599 C2R005Q01 719 C2R005Q01 mg l^-1

Conductivity 245 31.7 C2R005Q01 71 C2R005Q01 87.5 C2R005Q01 101 C2R005Q01 mS m^-1

(4) Checked C2R004Q01 (Potchefstroom) for valid samples...

Quaternary V60A, dam station: C2R004Q01, 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 7.95 C2R004Q01 8.4 C2R004Q01 8.53 C2R004Q01 8.78 C2R004Q01 -log [H⁺]

Fluoride 59 0.05 C2R004Q01 0.15 C2R004Q01 0.19 C2R004Q01 0.49 C2R004Q01 mg l^-1

NO3(N) 59 0.02 C2R004Q01 0.091 C2R004Q01 0.31 C2R004Q01 0.501 C2R004Q01 mg l^-1

Sulphate 59 23.8 C2R004Q01 96.2 C2R004Q01 109.9 C2R004Q01 123.7 C2R004Q01 mg l^-1

Chloride 59 16.9 C2R004Q01 23.8 C2R004Q01 26.7 C2R004Q01 29.8 C2R004Q01 mg l^-1

Sodium 59 14.9 C2R004Q01 20 C2R004Q01 23.6 C2R004Q01 108.2 C2R004Q01 mg l^-1

Magnesium 59 12.1 C2R004Q01 44.4 C2R004Q01 48.3 C2R004Q01 50.6 C2R004Q01 mg l^-1

TDS 59 307 C2R004Q01 513 C2R004Q01 546 C2R004Q01 824 C2R004Q01 mg l^-1

Conductivity 59 41 C2R004Q01 66.4 C2R004Q01 70.4 C2R004Q01 94.9 C2R004Q01 mS m^-1

(5) Checked C2R008Q01 (Vaal Barrage) for valid samples...
Number of samples found = 1: less than the 5 required, so not classified.

(6) Checked C1R001Q01 (Vaal) for valid samples...

Quaternary V60A, dam station: C1R001Q01, Samples selected: 313 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 313 7.39 C1R001Q01 8.01 C1R001Q01 8.23 C1R001Q01 8.67 C1R001Q01 -log [H⁺]

Fluoride 313 0.1 C1R001Q01 0.21 C1R001Q01 0.25 C1R001Q01 0.5 C1R001Q01 mg l^-1

NO3(N) 313 0.02 C1R001Q01 0.147 C1R001Q01 0.351 C1R001Q01 2.057 C1R001Q01 mg l^-1

Sulphate 313 2 C1R001Q01 16.8 C1R001Q01 20.9 C1R001Q01 28.2 C1R001Q01 mg l^-1

Chloride 313 2.5 C1R001Q01 7.7 C1R001Q01 10.7 C1R001Q01 22.8 C1R001Q01 mg l^-1

Sodium 313 6.3 C1R001Q01 11.7 C1R001Q01 14.2 C1R001Q01 17.1 C1R001Q01 mg l^-1

Magnesium 313 5.8 C1R001Q01 8 C1R001Q01 9.2 C1R001Q01 12.8 C1R001Q01 mg l^-1

TDS 313 119 C1R001Q01 160 C1R001Q01 176 C1R001Q01 186 C1R001Q01 mg l^-1

Conductivity 313 17.4 C1R001Q01 22.8 C1R001Q01 24.3 C1R001Q01 27.6 C1R001Q01 mS m^-1

(7) Checked C1R002Q01 (Grootdraai) for valid samples...

Quaternary V60A, dam station: C1R002Q01, 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 7.49 C1R002Q01 8.02 C1R002Q01 8.19 C1R002Q01 8.45 C1R002Q01 -log [H⁺]

Fluoride 99 0.16 C1R002Q01 0.22 C1R002Q01 0.26 C1R002Q01 0.33 C1R002Q01 mg l^-1

NO3(N) 99 0.02 C1R002Q01 0.055 C1R002Q01 0.212 C1R002Q01 0.305 C1R002Q01 mg l^-1

Sulphate 99 11.5 C1R002Q01 24.9 C1R002Q01 32 C1R002Q01 86.3 C1R002Q01 mg l^-1

Chloride 99 5 C1R002Q01 10.2 C1R002Q01 11.7 C1R002Q01 18.8 C1R002Q01 mg l^-1

Sodium 99 8.2 C1R002Q01 12.3 C1R002Q01 14.1 C1R002Q01 20.1 C1R002Q01 mg l^-1

Magnesium 99 7.8 C1R002Q01 11.1 C1R002Q01 12.5 C1R002Q01 13.2 C1R002Q01 mg l^-1

TDS 99 154 C1R002Q01 176 C1R002Q01 194 C1R002Q01 251 C1R002Q01 mg l^-1

Conductivity 99 22.1 C1R002Q01 24.5 C1R002Q01 26.9 C1R002Q01 29.9 C1R002Q01 mS m^-1

(8) Checked C8R001Q01 (Menin) for valid samples...
No data: not classified.

(9) Checked C8R004Q01 (Saulspoort) for valid samples...

Quaternary V60A, dam station: C8R004Q01, Samples selected: 240 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 240 6.79 C8R004Q01 7.8 C8R004Q01 7.98 C8R004Q01 8.34 C8R004Q01 -log [H⁺]

Fluoride 240 0.05 C8R004Q01 0.1 C8R004Q01 0.14 C8R004Q01 0.26 C8R004Q01 mg l^-1

NO3(N) 240 0.04 C8R004Q01 0.16 C8R004Q01 0.217 C8R004Q01 0.292 C8R004Q01 mg l^-1

Sulphate 240 2 C8R004Q01 6.7 C8R004Q01 11.1 C8R004Q01 19.6 C8R004Q01 mg l^-1

Chloride 240 2 C8R004Q01 5 C8R004Q01 5 C8R004Q01 6.3 C8R004Q01 mg l^-1

Sodium 240 1 C8R004Q01 2.8 C8R004Q01 3.8 C8R004Q01 5.4 C8R004Q01 mg l^-1

Magnesium 240 1.3 C8R004Q01 3.6 C8R004Q01 4 C8R004Q01 8.3 C8R004Q01 mg l^-1

TDS 240 57 C8R004Q01 76 C8R004Q01 90 C8R004Q01 110 C8R004Q01 mg l^-1

Conductivity 240 8.5 C8R004Q01 9.8 C8R004Q01 11.1 C8R004Q01 13.4 C8R004Q01 mS m^-1

(10) Checked C8R005Q01 (Loch Athlone) for valid samples...

Quaternary V60A, dam station: C8R005Q01, Samples selected: 67 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 67 7.42 C8R005Q01 8.07 C8R005Q01 8.32 C8R005Q01 8.77 C8R005Q01 -log [H⁺]

Fluoride 67 0.17 C8R005Q01 0.24 C8R005Q01 0.31 C8R005Q01 0.35 C8R005Q01 mg l^-1

NO3(N) 67 0.02 C8R005Q01 0.049 C8R005Q01 0.133 C8R005Q01 0.297 C8R005Q01 mg l^-1

Sulphate 67 8.2 C8R005Q01 13.8 C8R005Q01 24.5 C8R005Q01 30.3 C8R005Q01 mg l^-1

Chloride 67 5 C8R005Q01 11.5 C8R005Q01 14.2 C8R005Q01 17.2 C8R005Q01 mg l^-1

Sodium 67 9.8 C8R005Q01 19.8 C8R005Q01 31.2 C8R005Q01 38.2 C8R005Q01 mg l^-1

Magnesium 67 5.6 C8R005Q01 8.6 C8R005Q01 11.3 C8R005Q01 12.6 C8R005Q01 mg l^-1

TDS 67 147 C8R005Q01 211 C8R005Q01 273 C8R005Q01 332 C8R005Q01 mg l^-1

Conductivity 67 18.9 C8R005Q01 28.8 C8R005Q01 36 C8R005Q01 44.7 C8R005Q01 mS m^-1

(11) Checked C8R006Q01 (Gerrands) for valid samples...

Quaternary V60A, dam station: C8R006Q01, Samples selected: 61 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 61 7.55 C8R006Q01 8.14 C8R006Q01 8.3 C8R006Q01 8.56 C8R006Q01 -log [H⁺]

Fluoride 61 0.21 C8R006Q01 0.29 C8R006Q01 0.39 C8R006Q01 0.48 C8R006Q01 mg l^-1

NO3(N) 61 0.02 C8R006Q01 0.055 C8R006Q01 0.325 C8R006Q01 0.527 C8R006Q01 mg l^-1

Sulphate 61 9.2 C8R006Q01 14.4 C8R006Q01 20 C8R006Q01 30 C8R006Q01 mg l^-1

Chloride 61 5 C8R006Q01 10.9 C8R006Q01 14.2 C8R006Q01 15.7 C8R006Q01 mg l^-1

Sodium 61 12 C8R006Q01 23 C8R006Q01 32.1 C8R006Q01 41.3 C8R006Q01 mg l^-1

Magnesium 61 1.9 C8R006Q01 7.6 C8R006Q01 9.3 C8R006Q01 17.4 C8R006Q01 mg l^-1

TDS 61 155 C8R006Q01 224 C8R006Q01 271 C8R006Q01 312 C8R006Q01 mg l^-1

Conductivity 61 21.1 C8R006Q01 29.9 C8R006Q01 34.7 C8R006Q01 38.7 C8R006Q01 mS m^-1

(12) Checked C8R003Q01 (Sterkfontein) for valid samples...

Quaternary V60A, dam station: C8R003Q01, Samples selected: 220 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 220 6.82 C8R003Q01 7.74 C8R003Q01 7.93 C8R003Q01 8.3 C8R003Q01 -log [H⁺]

Fluoride 220 0.05 C8R003Q01 0.14 C8R003Q01 0.18 C8R003Q01 0.37 C8R003Q01 mg l^-1

NO3(N) 220 0.02 C8R003Q01 0.145 C8R003Q01 0.205 C8R003Q01 0.34 C8R003Q01 mg l^-1

Sulphate 220 2 C8R003Q01 4.7 C8R003Q01 8.8 C8R003Q01 12.6 C8R003Q01 mg l^-1

Chloride 220 2 C8R003Q01 5 C8R003Q01 5 C8R003Q01 8.7 C8R003Q01 mg l^-1

Sodium 220 1 C8R003Q01 3.9 C8R003Q01 4.5 C8R003Q01 6.6 C8R003Q01 mg l^-1

Magnesium 220 1.7 C8R003Q01 2.8 C8R003Q01 3.2 C8R003Q01 5.9 C8R003Q01 mg l^-1

TDS 220 51 C8R003Q01 66 C8R003Q01 72 C8R003Q01 79 C8R003Q01 mg l^-1

Conductivity 220 7.8 C8R003Q01 8.7 C8R003Q01 9.4 C8R003Q01 11.1 C8R003Q01 mS m^-1

(13) Checked C8R007Q01 (Driekloof) for valid samples...
No data: not classified.

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

C2R003Q01 49 1 Mg TDS

C2R001Q01 188 1 Mg TDS

C2R005Q01 245 1 Mg TDS EC

C2R004Q01 59 1 Mg TDS EC

C1R001Q01 313 0

C1R002Q01 99 0

C8R004Q01 240 0

C8R005Q01 67 0

C8R006Q01 61 0

C8R003Q01 220 0

Finished calculations for Upper Vaal WMA at 2006-12-18 - 16:05:05

[Chemical index page] [IWQS home page]

Station	total n samples	description	map code
C2H008Q01	628	Vaal River at De Pont-Lindequesdrift	78
C2H140Q01	490	Vaal River at Woodlands-Goose Bay Canyon	79

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	256	6.97	C2H140Q01	8.13	C2H140Q01	8.63	C2H140Q01	9.18	C2H140Q01	-log [H⁺]
Fluoride	256	0.21	C2H140Q01	0.35	C2H140Q01	0.41	C2H140Q01	0.58	C2H140Q01	mg l^-1
NO3(N)	256	0.02	C2H140Q01	1.836	C2H140Q01	2.894	C2H140Q01	3.934	C2H140Q01	mg l^-1
Sulphate	256	34.5	C2H140Q01	164.4	C2H140Q01	203	C2H140Q01	237.1	C2H140Q01	mg l^-1
Chloride	256	12.6	C2H140Q01	65.1	C2H140Q01	77.8	C2H140Q01	86.5	C2H140Q01	mg l^-1
Sodium	256	14.6	C2H140Q01	62.3	C2H140Q01	74.1	C2H140Q01	86.9	C2H140Q01	mg l^-1
Magnesium	256	9.8	C2H140Q01	21.9	C2H140Q01	26	C2H140Q01	47.7	C2H140Q01	mg l^-1
TDS	256	203	C2H140Q01	551	C2H140Q01	631	C2H140Q01	684	C2H140Q01	mg l^-1
Conductivity	256	29.5	C2H140Q01	79.5	C2H140Q01	89.8	C2H140Q01	97.5	C2H140Q01	mS m^-1

Station	total n samples	description	map code
C2H251Q01	56	Vaalriver at Parys	80
C2H018Q01	1674	Vaal River at De Vaal-Schoemansdrift	81

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	285	7.18	C2H018Q01	8.14	C2H018Q01	8.89	C2H251Q01	9.4	C2H251Q01	-log [H⁺]
Fluoride	285	0.2	C2H018Q01	0.36	C2H018Q01	0.42	C2H018Q01	0.6	C2H251Q01	mg l^-1
NO3(N)	285	0.02	C2H018Q01	0.79	C2H018Q01	1.882	C2H018Q01	3.5	C2H251Q01	mg l^-1
Sulphate	285	33.9	C2H018Q01	163.9	C2H018Q01	202.8	C2H018Q01	239.7	C2H018Q01	mg l^-1
Chloride	285	14	C2H018Q01	65.8	C2H018Q01	80.1	C2H018Q01	97.2	C2H018Q01	mg l^-1
Sodium	285	14.8	C2H018Q01	63.2	C2H018Q01	77.8	C2H018Q01	90.1	C2H018Q01	mg l^-1
Magnesium	285	7.3	C2H251Q01	22.1	C2H018Q01	26.9	C2H018Q01	50.5	C2H018Q01	mg l^-1
TDS	285	192	C2H018Q01	555	C2H018Q01	647	C2H018Q01	744	C2H018Q01	mg l^-1
Conductivity	285	27.5	C2H018Q01	79.8	C2H018Q01	91.6	C2H018Q01	103.2	C2H018Q01	mS m^-1

Station	total n samples	description	map code
C2H236Q01	0	Manganese Metal Property	none
C2H235Q01	canal	Stormwater Canal at Palmiet Ferrochrome	none
C2H152Q01	45	Wonderfont Spruit Rail Bridge Betw Turk	82
C2H153Q01	67	Wonderfontein Spruit at Randfontein Azaa	83
C2H237Q01	effluent	Flip Human Wcw Final Effluent at Rietval	none
C2H270Q01	42	Wonderfontein Spruit at Luipaardsvlei	84
C2H023Q01	800	Wonderfontein Spruit at Luipaardsvlei	85
C2H026Q01	221	Middelvlei Spruit at Middelvlei	86
C2H027Q01	21	Kocksoord Spruit at Middelvlei	87
C2H271Q01	20	Wonderfontein Spruit R559 at Luipaardsv	88
C2H028Q01	434	Rietfontein Spruit at Rietfontein	89
C2H238Q01	1	Luipaardsvlei Panvlak Gold Mine	90
C2H154Q01	46	Wonderfontein Spruit at Bridge on The Do	91
C2H248Q01	canal	Concrete Stormwater Canal at Bekkersdal	none
C2H024Q01	170	Wonderfontein Spruit at Gemsbokfont..D-S	92
C2H025Q01	417	Wonderfontein Spruit no 7 at Gemsbokfont	93
C2H239Q01	effluent	Final Effluent From Hannes Van Niekerk W	none
C2H076Q01	dam	Westonaria Gold Mine Discharge Dam at Wa	none

Station	total n samples	description	map code
C2H057Q01	canal	West Driefontein Canal at Wonderfontein	none
C2H107Q01	canal	Canal From West Driefontein Canal at Won	none
C2H030Q01	eye	Wonderfontein Eye at Wonderfontein-Cana	none
C2H092Q01	canal	Canal From Gerhardminnebron-Eye at Gerha	none
C2H032Q01	224	Mooirivierloop River at Wonderfontein	94
C2H157Q01	71	Wonderfontein Spruit at Low Water Bridge	95
C2H079Q01	canal	Mixed Water of Canals C2h077 & C2h078 at	none
C2H078Q01	canal	Confluence: Canal From Venterspost G M A	none
C2H077Q01	canal	Confl.: West & East Driefontein Canals A	none
C2H080Q01	pipe	Wonderfontein @ End 1m Pipeline Ex Vent	none
C2H081Q01	drain	Canal to Which 1m Pipe C2h080 Drains A	none
C2H082Q01	canal	Canal at Inlet to Nature Res..at Rooipoo	none
C2H261Q01	effluent	Final Effluent From Oberholzer Sw @ Wond	none
C2H151Q01	canal	Oberholzer Canal South at Wonderfontein	none
C2H044Q01	canal	Oberholzer Canal South at Wonderfontein	none
C2H083Q01	136	@ Wonderfontein Outflow Ex Nature Res no	96
C2H175Q01	dam	Wonderfonteinspruit at Dam Overflow Harr	none
C2H063Q01	canal	West Driefontein Transfer Canal at Rooip	none
C2H267Q01	effluent	Final Effluent From Khutsong Wcw at Welv	none
C2H156Q01	88	West Driefontein Gold Mine Process H2O R	97
C2H074Q01	furrow	Furrow at Tarred Road North of Welverdie	none
C2H155Q01	26	West Driefontein Gold Mine Fissure H2O D	98
C2H075Q01	130	Mooirivierloop at Blaauwbank Welverdiend	99
C2H060Q01	canal	Doornfontein Canal at Blaauwbank	none
C2H268Q01	effluent	Final Effluent From Welverdiend Wcw at W	none
C2H159Q01	plant	Doornfont G-M Fissure H2O Gold Plant Dis	none
C2H069Q01	1573	Mooirivierloop River at Blaauwbank	100
C2H266Q01	effluent	Final Effluent From West Driefontein #4	none
C2H265Q01	effluent	Final Effluent From East Driefontein at	none
C2H158Q01	26	Blyvooruitzicht G Mine Fissure H2O Pipe	101
C2H176Q01	dam	Varkenslaagtespruit at Doringdraai Dam W	none
C2H244Q01	effluent	Final Effluent From Blyvooruitzicht Gm A	none
C2H242Q01	effluent	Final Effluent From Doornfontein#1 G-M A	none
C2H034Q01	0	Blyvooruitzicht -012	none
C2H245Q01	effluent	Final Effluent From Western Deep Levels	none
C2H160Q01	56	Doornfontein Gold Mine Fissure H2O no 3	102
C2H241Q01	effluent	Final Effluent From Doornfontein G-M#3 A	none
C2H163Q01	35	Varkenslaagte Spruit on Farm Bridge D-S	103
C2H033Q01	11	Buffelsdoorn Spruit at Doornfontein	104
C2H269Q01	21	Varkenslaagtespruit at Doornfontein Doo	105
C2H164Q01	dam	Western Nursery Dam Overflow at Elandsra	none
C2H165Q01	dam	Deelkraal Gold Mine Recreational Dam Dee	none

Station	total n samples	description	map code
C2H172Q01	eye	Bovenste Eye at Mooirivier Catchment	none
C2H006Q01	48	Mooi River at Klerkskraal Klerkskraal D	106
C2H113Q01	dam	Klerkskraal Dam Right Bank Canal on Mooi	none

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	25	7.8	C2H006Q01	8.31	C2H006Q01	8.6	C2H006Q01	9.3	C2H006Q01	-log [H⁺]
Fluoride	25	0.05	C2H006Q01	0.1	C2H006Q01	0.2	C2H006Q01	0.2	C2H006Q01	mg l^-1
NO3(N)	25	0.05	C2H006Q01	0.1	C2H006Q01	1	C2H006Q01	1.9	C2H006Q01	mg l^-1
Sulphate	25	5	C2H006Q01	10	C2H006Q01	21.5	C2H006Q01	600	C2H006Q01	mg l^-1
Chloride	25	3	C2H006Q01	5	C2H006Q01	49.5	C2H006Q01	132	C2H006Q01	mg l^-1
Sodium	25	1	C2H006Q01	6.6	C2H006Q01	16	C2H006Q01	97.5	C2H006Q01	mg l^-1
Magnesium	25	9.7	C2H006Q01	29.8	C2H006Q01	34.9	C2H006Q01	66.2	C2H006Q01	mg l^-1
TDS	25	127	C2H006Q01	390	C2H006Q01	515	C2H006Q01	1074	C2H006Q01	mg l^-1
Conductivity	25	29	C2H006Q01	44	C2H006Q01	49	C2H006Q01	149	C2H006Q01	mS m^-1

Station	total n samples	description	map code
C2H110Q01	dam	Boskop Dam on Mooi River: Left Main CA	none
C2H001Q01	1265	Mooi River at Witrand	112
C2H173Q01	dam	Boskop Dam-Main Canal-Pipe Line Potchef	none
C2H174Q01	dam	Potchefstroom Dam-Canal-Pipeline Potche	none
C2H114Q01	dam	Potchefstroom Dam on Mooi River: Left CA	none
C2H252Q01	dam	Mooi River D-S Dam Overflow at Potchefst	none
C2H253Q01	13	Mooi River at Road Bridge Potchefstroom	113

Station	total n samples	description	map code
C2H240Q01	effluent	Final Effluent From W&e Driefontein at K	none
C2H051Q02	0	Kraalkop on Kraalkop-Eye	none
C2H246Q01	57	Loopspruit at Gravel Road Bridge Leeudoo	114
C2H051Q01	eye	Kraalkop Eye at Kraalkop	none
C2H051Q02	eye	Eye + Other Source at Kraalkop	none
C2H168Q01	58	Kraalkop Spruit at Old Johannesburg-Potc	115
C2H259Q01	effluent	Final Effluent From Wdl South at Eland	none
C2H167Q01	64	Elandsfontein Spruit at Johannesburg-Pot	116
C2H264Q01	0	Buffelsdoorn	none
C2H263Q01	dam	Overflow From Return Water Dam at Buffel	none
C2H243Q01	0	Deelkraal 142 Iq	none
C2H169Q01	42	Loop Spruit at Losberg-Bank Road Bridge	117
C2H262Q01	effluent	Final Effluent From Wedela Sw at Buffels	none
C2H166Q01	39	Buffelsdoorn Spruit at Johannesburg-Potc	118
C2H257Q01	effluent	Final Effluent From Kokosi Wcw at Kokosi	none
C2H258Q01	16	Loopspruit 100m Ds Kokosi Wcw at Kokosi	119
C2H247Q01	43	Loopspruit at Gravel Piet Viljoen Park F	120
C2H170Q01	dam	Loopspruit at Outflow From Klipdrift Dam	none
C2H116Q01	dam	Klipdrif Dam on Loop Spruit: Left Canal	none

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	81	6.1	C2H246Q01	7.77	C2H246Q01	8.3	C2H247Q01	9.8	C2H167Q01	-log [H⁺]
Fluoride	81	0.05	C2H168Q01	0.3	C2H167Q01	0.6	C2H246Q01	2.4	C2H166Q01	mg l^-1
NO3(N)	81	0.05	C2H247Q01	6	C2H246Q01	11.63	C2H246Q01	19.6	C2H166Q01	mg l^-1
Sulphate	81	10	C2H168Q01	152.6	C2H167Q01	300.8	C2H246Q01	395	C2H246Q01	mg l^-1
Chloride	81	19	C2H168Q01	89	C2H246Q01	122.9	C2H169Q01	153	C2H246Q01	mg l^-1
Sodium	81	25.7	C2H168Q01	76.3	C2H247Q01	97.8	C2H247Q01	123.8	C2H246Q01	mg l^-1
Magnesium	81	1.6	C2H168Q01	14.5	C2H167Q01	26.8	C2H247Q01	42.5	C2H258Q01	mg l^-1
TDS	81	116	C2H168Q01	530	C2H166Q01	810	C2H247Q01	987	C2H246Q01	mg l^-1
Conductivity	81	17	C2H168Q01	83	C2H246Q01	118.4	C2H247Q01	148	C2H246Q01	mS m^-1

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	27	7.7	C2H256Q01	8.2	C2H256Q01	8.5	C2H256Q01	8.61	C2H256Q01	-log [H⁺]
Fluoride	27	0.05	C2H256Q01	0.24	C2H256Q01	0.4	C2H256Q01	0.4	C2H256Q01	mg l^-1
NO3(N)	27	0.02	C2H256Q01	0.1	C2H256Q01	0.53	C2H256Q01	1.1	C2H256Q01	mg l^-1
Sulphate	27	45	C2H256Q01	101	C2H256Q01	125.3	C2H256Q01	129	C2H256Q01	mg l^-1
Chloride	27	29.1	C2H256Q01	48	C2H256Q01	72.6	C2H256Q01	81	C2H256Q01	mg l^-1
Sodium	27	20.5	C2H256Q01	42.1	C2H256Q01	54.9	C2H256Q01	73.2	C2H256Q01	mg l^-1
Magnesium	27	8.2	C2H256Q01	38.4	C2H256Q01	50.2	C2H256Q01	54.1	C2H256Q01	mg l^-1
TDS	27	293	C2H256Q01	542	C2H256Q01	635	C2H256Q01	717	C2H256Q01	mg l^-1
Conductivity	27	40	C2H256Q01	71	C2H256Q01	82	C2H256Q01	85	C2H256Q01	mS m^-1

Station	total n samples	description	map code
C2H255Q01	effluent	Final Effluent From Potchefstroom Wcw at	none
C2H254Q01	44	Mooi River at Potchefstroom Wilgeboom	122
C2H072Q01	314	Mooi River at Taaiboschbult	123
C2H085Q01	6208	Mooi River at Hoogekraal-Kromdraai	124
C2H260Q01	54	Vaal River Low Water Bridge at Kromdraai	125
C2H250Q01	12	Vaalriver Bridge at Scandinawiedrif	126
C2H018Q01	1674	Vaal River at De Vaal-Schoemansdrift	127

Station	total n samples	description	map code
C8H010Q01	514	Ouberg Spruit at Fraserspruit-Harrismith	129
C8H008Q01	canal	Tugela-Vaal Canal at Metz-Sterkfontein D	none

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	47	5.61	C8H010Q01	7.78	C8H010Q01	8.06	C8H010Q01	8.33	C8H010Q01	-log [H⁺]
Fluoride	47	0.05	C8H010Q01	0.14	C8H010Q01	0.19	C8H010Q01	0.27	C8H010Q01	mg l^-1
NO3(N)	47	0.02	C8H010Q01	0.042	C8H010Q01	0.11	C8H010Q01	0.412	C8H010Q01	mg l^-1
Sulphate	47	2	C8H010Q01	6.6	C8H010Q01	11.2	C8H010Q01	17.9	C8H010Q01	mg l^-1
Chloride	47	2	C8H010Q01	5	C8H010Q01	9.7	C8H010Q01	15.1	C8H010Q01	mg l^-1
Sodium	47	4.6	C8H010Q01	7.3	C8H010Q01	13.6	C8H010Q01	24.1	C8H010Q01	mg l^-1
Magnesium	47	1.9	C8H010Q01	2.9	C8H010Q01	5.8	C8H010Q01	7.6	C8H010Q01	mg l^-1
TDS	47	48	C8H010Q01	81	C8H010Q01	155	C8H010Q01	216	C8H010Q01	mg l^-1
Conductivity	47	6.4	C8H010Q01	11.4	C8H010Q01	21.8	C8H010Q01	28	C8H010Q01	mS m^-1

Station	total n samples	description	map code
C8H032Q01	504	at Sterkfonteindam on Nuwejaar Spruit	130
C8H008Q01	canal	Tugela-Vaal Canal at Metz-Sterkfontein D	none

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	106	7.48	C8H032Q01	7.87	C8H032Q01	8.2	C8H032Q01	8.53	C8H032Q01	-log [H⁺]
Fluoride	106	0.1	C8H032Q01	0.16	C8H032Q01	0.19	C8H032Q01	0.32	C8H032Q01	mg l^-1
NO3(N)	106	0.02	C8H032Q01	0.186	C8H032Q01	0.245	C8H032Q01	1.303	C8H032Q01	mg l^-1
Sulphate	106	2	C8H032Q01	6.1	C8H032Q01	9.6	C8H032Q01	14.3	C8H032Q01	mg l^-1
Chloride	106	2	C8H032Q01	5	C8H032Q01	5	C8H032Q01	11.9	C8H032Q01	mg l^-1
Sodium	106	2.5	C8H032Q01	5.1	C8H032Q01	10.6	C8H032Q01	21.3	C8H032Q01	mg l^-1
Magnesium	106	2.7	C8H032Q01	3.5	C8H032Q01	7	C8H032Q01	10.7	C8H032Q01	mg l^-1
TDS	106	65	C8H032Q01	90	C8H032Q01	159	C8H032Q01	240	C8H032Q01	mg l^-1
Conductivity	106	8.2	C8H032Q01	10.9	C8H032Q01	21.4	C8H032Q01	30.3	C8H032Q01	mS m^-1

Station	total n samples	description	map code
C8H002Q01	13	Wilge River at Harrismith	131
C8H015Q01	59	Wilge River at Harrismith Town Lands	132
C8H010Q01	514	Ouberg Spruit at Fraserspruit-Harrismith	133
C8H032Q01	504	at Sterkfonteindam on Nuwejaar Spruit	134

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	153	5.61	C8H010Q01	7.85	C8H032Q01	8.17	C8H032Q01	8.53	C8H032Q01	-log [H⁺]
Fluoride	153	0.05	C8H010Q01	0.15	C8H032Q01	0.19	C8H010Q01	0.32	C8H032Q01	mg l^-1
NO3(N)	153	0.02	C8H010Q01	0.127	C8H010Q01	0.231	C8H032Q01	1.303	C8H032Q01	mg l^-1
Sulphate	153	2	C8H032Q01	6.3	C8H032Q01	10.2	C8H010Q01	17.9	C8H010Q01	mg l^-1
Chloride	153	2	C8H010Q01	5	C8H010Q01	6.3	C8H032Q01	15.1	C8H010Q01	mg l^-1
Sodium	153	2.5	C8H032Q01	5.7	C8H032Q01	11.7	C8H010Q01	24.1	C8H010Q01	mg l^-1
Magnesium	153	1.9	C8H010Q01	3.4	C8H010Q01	6.9	C8H032Q01	10.7	C8H032Q01	mg l^-1
TDS	153	48	C8H010Q01	89	C8H010Q01	160	C8H032Q01	240	C8H032Q01	mg l^-1
Conductivity	153	6.4	C8H010Q01	11.1	C8H032Q01	21.6	C8H032Q01	30.3	C8H032Q01	mS m^-1

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	66	7.2	C8H005Q01	7.82	C8H005Q01	8.09	C8H005Q01	8.76	C8H005Q01	-log [H⁺]
Fluoride	66	0.1	C8H005Q01	0.14	C8H005Q01	0.19	C8H005Q01	0.32	C8H005Q01	mg l^-1
NO3(N)	66	0.04	C8H005Q01	1.786	C8H005Q01	4.329	C8H005Q01	6.558	C8H005Q01	mg l^-1
Sulphate	66	3	C8H005Q01	12.3	C8H005Q01	17.9	C8H005Q01	37.8	C8H005Q01	mg l^-1
Chloride	66	2.5	C8H005Q01	11.6	C8H005Q01	22	C8H005Q01	26.5	C8H005Q01	mg l^-1
Sodium	66	4.2	C8H005Q01	11.5	C8H005Q01	20.3	C8H005Q01	30.2	C8H005Q01	mg l^-1
Magnesium	66	1.9	C8H005Q01	6.7	C8H005Q01	9.5	C8H005Q01	17.1	C8H005Q01	mg l^-1
TDS	66	66	C8H005Q01	169	C8H005Q01	230	C8H005Q01	267	C8H005Q01	mg l^-1
Conductivity	66	8.9	C8H005Q01	23.5	C8H005Q01	33.1	C8H005Q01	36.3	C8H005Q01	mS m^-1

Station	total n samples	description	map code
C8H011Q01	1294	Elands River at Killarney	137
C8H006Q01	225	Klerk Spruit at Geduld	138
C8H005Q01	869	Elands River Below Qwa Qwa	139

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	311	6.97	C8H011Q01	7.93	C8H011Q01	8.2	C8H011Q01	8.76	C8H005Q01	-log [H⁺]
Fluoride	311	0.05	C8H011Q01	0.14	C8H011Q01	0.2	C8H011Q01	0.32	C8H005Q01	mg l^-1
NO3(N)	311	0.02	C8H011Q01	0.975	C8H011Q01	3.08	C8H005Q01	6.558	C8H005Q01	mg l^-1
Sulphate	311	3	C8H005Q01	12.1	C8H011Q01	16.7	C8H011Q01	37.8	C8H005Q01	mg l^-1
Chloride	311	2.5	C8H011Q01	11	C8H005Q01	19.9	C8H011Q01	29.3	C8H011Q01	mg l^-1
Sodium	311	4.2	C8H005Q01	12.3	C8H011Q01	20.3	C8H011Q01	30.2	C8H005Q01	mg l^-1
Magnesium	311	1.9	C8H005Q01	8.5	C8H005Q01	13	C8H011Q01	18	C8H011Q01	mg l^-1
TDS	311	59	C8H011Q01	195	C8H005Q01	260	C8H011Q01	298	C8H011Q01	mg l^-1
Conductivity	311	8.3	C8H011Q01	26.6	C8H011Q01	35.6	C8H011Q01	40.1	C8H011Q01	mS m^-1

Station	total n samples	description	map code
C8H024Q01	46	Middel Spruit at Middelspruit	140
C8H012Q01	372	at Voorspoed on Vaalbank Spruit	141
C8H013Q01	217	at Vaalbank 327 on Vaalbank Spruit	142
C8H025Q01	157	Vaalbank Spruit at Rustkop	143

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	107	7.27	C8H013Q01	8.27	C8H012Q01	8.45	C8H012Q01	8.74	C8H013Q01	-log [H⁺]
Fluoride	107	0.26	C8H012Q01	0.4	C8H012Q01	0.52	C8H013Q01	0.84	C8H013Q01	mg l^-1
NO3(N)	107	0.02	C8H012Q01	0.04	C8H012Q01	0.076	C8H013Q01	0.766	C8H013Q01	mg l^-1
Sulphate	107	8.4	C8H012Q01	19.1	C8H012Q01	31.8	C8H013Q01	81.6	C8H013Q01	mg l^-1
Chloride	107	5	C8H012Q01	15.5	C8H012Q01	23	C8H013Q01	30.9	C8H013Q01	mg l^-1
Sodium	107	16.2	C8H013Q01	45.9	C8H012Q01	72.4	C8H013Q01	118.2	C8H013Q01	mg l^-1
Magnesium	107	6	C8H012Q01	10.5	C8H013Q01	13.4	C8H013Q01	15.8	C8H013Q01	mg l^-1
TDS	107	188	C8H013Q01	357	C8H012Q01	451	C8H013Q01	563	C8H013Q01	mg l^-1
Conductivity	107	23.7	C8H013Q01	44.8	C8H013Q01	56.5	C8H012Q01	70.1	C8H013Q01	mS m^-1

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	251	7.03	C8H023Q01	8.06	C8H023Q01	8.37	C8H023Q01	8.97	C8H023Q01	-log [H⁺]
Fluoride	251	0.1	C8H023Q01	0.24	C8H023Q01	0.32	C8H023Q01	0.74	C8H023Q01	mg l^-1
NO3(N)	251	0.02	C8H023Q01	0.073	C8H023Q01	0.162	C8H023Q01	1.744	C8H023Q01	mg l^-1
Sulphate	251	2	C8H023Q01	13.6	C8H023Q01	20.5	C8H023Q01	43.5	C8H023Q01	mg l^-1
Chloride	251	2.5	C8H023Q01	10.1	C8H023Q01	15.3	C8H023Q01	44.7	C8H023Q01	mg l^-1
Sodium	251	4.3	C8H023Q01	16.9	C8H023Q01	29.5	C8H023Q01	41.7	C8H023Q01	mg l^-1
Magnesium	251	1.2	C8H023Q01	6.9	C8H023Q01	12.8	C8H023Q01	19.6	C8H023Q01	mg l^-1
TDS	251	52	C8H023Q01	186	C8H023Q01	284	C8H023Q01	320	C8H023Q01	mg l^-1
Conductivity	251	6.9	C8H023Q01	25.2	C8H023Q01	37.5	C8H023Q01	41.9	C8H023Q01	mS m^-1

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	152	6.9	C8H003Q01	8.04	C8H003Q01	8.27	C8H003Q01	8.57	C8H003Q01	-log [H⁺]
Fluoride	152	0.14	C8H003Q01	0.29	C8H003Q01	0.38	C8H003Q01	0.48	C8H003Q01	mg l^-1
NO3(N)	152	0.02	C8H003Q01	0.044	C8H003Q01	0.168	C8H003Q01	1.306	C8H003Q01	mg l^-1
Sulphate	152	6.2	C8H003Q01	16	C8H003Q01	24.3	C8H003Q01	40.1	C8H003Q01	mg l^-1
Chloride	152	5	C8H003Q01	12.7	C8H003Q01	18.2	C8H003Q01	23.8	C8H003Q01	mg l^-1
Sodium	152	8.2	C8H003Q01	19.2	C8H003Q01	28.6	C8H003Q01	35.1	C8H003Q01	mg l^-1
Magnesium	152	2.5	C8H003Q01	10.6	C8H003Q01	15.7	C8H003Q01	19.9	C8H003Q01	mg l^-1
TDS	152	75	C8H003Q01	232	C8H003Q01	320	C8H003Q01	403	C8H003Q01	mg l^-1
Conductivity	152	9.9	C8H003Q01	30.8	C8H003Q01	41.6	C8H003Q01	53	C8H003Q01	mS m^-1

Station	total n samples	description	map code
C8H028Q01	585	Wilge River at Bavaria Flood Section	148
C8H014Q01	616	Wilge River at Bavaria	149

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	129	6.53	C8H028Q01	8	C8H028Q01	8.38	C8H028Q01	9.39	C8H028Q01	-log [H⁺]
Fluoride	129	0.05	C8H028Q01	0.18	C8H028Q01	0.25	C8H028Q01	0.35	C8H028Q01	mg l^-1
NO3(N)	129	0.02	C8H028Q01	0.201	C8H028Q01	0.658	C8H028Q01	2.561	C8H028Q01	mg l^-1
Sulphate	129	5.3	C8H028Q01	13.7	C8H028Q01	19.1	C8H028Q01	33.2	C8H028Q01	mg l^-1
Chloride	129	2	C8H028Q01	10	C8H028Q01	19.5	C8H028Q01	31.8	C8H028Q01	mg l^-1
Sodium	129	3.1	C8H028Q01	13.5	C8H028Q01	23.9	C8H028Q01	35.9	C8H028Q01	mg l^-1
Magnesium	129	1.9	C8H028Q01	7.6	C8H028Q01	13.1	C8H028Q01	26.5	C8H028Q01	mg l^-1
TDS	129	58	C8H028Q01	173	C8H028Q01	279	C8H028Q01	393	C8H028Q01	mg l^-1
Conductivity	129	8.1	C8H028Q01	24.1	C8H028Q01	37.4	C8H028Q01	50	C8H028Q01	mS m^-1

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	175	6.06	C8H018Q01	8.26	C8H018Q01	8.46	C8H018Q01	8.69	C8H018Q01	-log [H⁺]
Fluoride	175	0.22	C8H018Q01	0.3	C8H018Q01	0.48	C8H018Q01	0.58	C8H018Q01	mg l^-1
NO3(N)	175	0.02	C8H018Q01	0.055	C8H018Q01	0.274	C8H018Q01	1.013	C8H018Q01	mg l^-1
Sulphate	175	8.6	C8H018Q01	23.9	C8H018Q01	31.1	C8H018Q01	48.6	C8H018Q01	mg l^-1
Chloride	175	5	C8H018Q01	14.3	C8H018Q01	20	C8H018Q01	44.8	C8H018Q01	mg l^-1
Sodium	175	9.7	C8H018Q01	27.9	C8H018Q01	40.2	C8H018Q01	47.3	C8H018Q01	mg l^-1
Magnesium	175	5.3	C8H018Q01	18.4	C8H018Q01	27.3	C8H018Q01	37.3	C8H018Q01	mg l^-1
TDS	175	144	C8H018Q01	351	C8H018Q01	454	C8H018Q01	518	C8H018Q01	mg l^-1
Conductivity	175	19.4	C8H018Q01	44.4	C8H018Q01	55.9	C8H018Q01	64.6	C8H018Q01	mS m^-1

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	235	7.2	C8H027Q01	8.03	C8H027Q01	8.31	C8H027Q01	8.58	C8H027Q01	-log [H⁺]
Fluoride	235	0.1	C8H027Q01	0.19	C8H027Q01	0.24	C8H027Q01	0.33	C8H027Q01	mg l^-1
NO3(N)	235	0.02	C8H027Q01	0.137	C8H027Q01	0.514	C8H027Q01	2.03	C8H027Q01	mg l^-1
Sulphate	235	2	C8H027Q01	15.2	C8H027Q01	21.1	C8H027Q01	29.3	C8H027Q01	mg l^-1
Chloride	235	2.5	C8H027Q01	9.5	C8H027Q01	15.6	C8H027Q01	27.4	C8H027Q01	mg l^-1
Sodium	235	5.2	C8H027Q01	13.2	C8H027Q01	22.4	C8H027Q01	29.7	C8H027Q01	mg l^-1
Magnesium	235	1.9	C8H027Q01	8.3	C8H027Q01	16.3	C8H027Q01	19.2	C8H027Q01	mg l^-1
TDS	235	71	C8H027Q01	184	C8H027Q01	305	C8H027Q01	327	C8H027Q01	mg l^-1
Conductivity	235	9.1	C8H027Q01	25.3	C8H027Q01	39.9	C8H027Q01	44.8	C8H027Q01	mS m^-1