Chemical classification of Fish to Tsitsikamma WMA 2006-12-18

Fish to Tsitsikamma WMA

Chemical classification run on 2006-12-18 - 16:34:36

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]

205 quaternary drainage regions overlap Fish to Tsitsikamma WMA

(4) Catchment K80C: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

K8H001Q01 430 Kruis River at Farm 508-Pine View 1

K8H002Q01 432 @ Kwaaibrand Forest Reserve Witels on El 2

Station	total n samples	description	map code
K8H001Q01	430	Kruis River at Farm 508-Pine View	1
K8H002Q01	432	@ Kwaaibrand Forest Reserve Witels on El	2

K80C - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(5) Catchment K80D: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

K8H006Q01 35 Groot River at Rooiwal 3

Station	total n samples	description	map code
K8H006Q01	35	Groot River at Rooiwal	3

K80D - Stations used: 1, Samples selected: 23 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 23 4.28 K8H006Q01 5.15 K8H006Q01 6.31 K8H006Q01 6.97 K8H006Q01 -log [H⁺]

Fluoride 23 0.05 K8H006Q01 0.1 K8H006Q01 0.12 K8H006Q01 0.15 K8H006Q01 mg l^-1

NO3(N) 23 0.02 K8H006Q01 0.145 K8H006Q01 0.365 K8H006Q01 0.459 K8H006Q01 mg l^-1

Sulphate 23 8.2 K8H006Q01 15.7 K8H006Q01 19.9 K8H006Q01 20.8 K8H006Q01 mg l^-1

Chloride 23 34.2 K8H006Q01 63.2 K8H006Q01 74.9 K8H006Q01 87.2 K8H006Q01 mg l^-1

Sodium 23 18.1 K8H006Q01 29.3 K8H006Q01 38.4 K8H006Q01 44.1 K8H006Q01 mg l^-1

Magnesium 23 3.5 K8H006Q01 4.8 K8H006Q01 5.4 K8H006Q01 6 K8H006Q01 mg l^-1

TDS 23 86 K8H006Q01 126 K8H006Q01 147 K8H006Q01 165 K8H006Q01 mg l^-1

Conductivity 23 19.2 K8H006Q01 25.3 K8H006Q01 31 K8H006Q01 36.8 K8H006Q01 mS m^-1

Summary of classification: K80D n=23 Class 0

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	23	4.28	K8H006Q01	5.15	K8H006Q01	6.31	K8H006Q01	6.97	K8H006Q01	-log [H⁺]
Fluoride	23	0.05	K8H006Q01	0.1	K8H006Q01	0.12	K8H006Q01	0.15	K8H006Q01	mg l^-1
NO3(N)	23	0.02	K8H006Q01	0.145	K8H006Q01	0.365	K8H006Q01	0.459	K8H006Q01	mg l^-1
Sulphate	23	8.2	K8H006Q01	15.7	K8H006Q01	19.9	K8H006Q01	20.8	K8H006Q01	mg l^-1
Chloride	23	34.2	K8H006Q01	63.2	K8H006Q01	74.9	K8H006Q01	87.2	K8H006Q01	mg l^-1
Sodium	23	18.1	K8H006Q01	29.3	K8H006Q01	38.4	K8H006Q01	44.1	K8H006Q01	mg l^-1
Magnesium	23	3.5	K8H006Q01	4.8	K8H006Q01	5.4	K8H006Q01	6	K8H006Q01	mg l^-1
TDS	23	86	K8H006Q01	126	K8H006Q01	147	K8H006Q01	165	K8H006Q01	mg l^-1
Conductivity	23	19.2	K8H006Q01	25.3	K8H006Q01	31	K8H006Q01	36.8	K8H006Q01	mS m^-1

(6) Catchment K80E: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

K8H005Q01 49 Tsitsikama River at Geelhoutboom 4

K8H004Q01 51 Tsitsikama River at Goverment Ground-Hui 5

Station	total n samples	description	map code
K8H005Q01	49	Tsitsikama River at Geelhoutboom	4
K8H004Q01	51	Tsitsikama River at Goverment Ground-Hui	5

K80E - Stations used: 2, Samples selected: 51 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 51 6.22 K8H005Q01 7.61 K8H004Q01 8.2 K8H004Q01 8.33 K8H004Q01 -log [H⁺]

Fluoride 51 0.05 K8H005Q01 0.22 K8H004Q01 0.33 K8H004Q01 1.16 K8H005Q01 mg l^-1

NO3(N) 51 0.02 K8H005Q01 0.081 K8H004Q01 0.317 K8H005Q01 0.665 K8H005Q01 mg l^-1

Sulphate 51 10.7 K8H005Q01 157.4 K8H004Q01 872.3 K8H004Q01 1206.4 K8H004Q01 mg l^-1

Chloride 51 99.6 K8H005Q01 1011.5 K8H004Q01 6985.2 K8H004Q01 9079.9 K8H004Q01 mg l^-1

Sodium 51 50.9 K8H005Q01 551.5 K8H004Q01 3802.4 K8H004Q01 4910.7 K8H004Q01 mg l^-1

Magnesium 51 7.2 K8H005Q01 63.4 K8H004Q01 469 K8H004Q01 604 K8H004Q01 mg l^-1

TDS 51 210 K8H005Q01 1897 K8H004Q01 12709 K8H004Q01 16428 K8H004Q01 mg l^-1

Conductivity 51 38.2 K8H005Q01 356 K8H004Q01 1958 K8H004Q01 2400 K8H004Q01 mS m^-1

Summary of classification (consituents in each range in brackets): K80E n=51 Class 3: I( ) II( ) III(SO4 Cl Na Mg TDS EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	51	6.22	K8H005Q01	7.61	K8H004Q01	8.2	K8H004Q01	8.33	K8H004Q01	-log [H⁺]
Fluoride	51	0.05	K8H005Q01	0.22	K8H004Q01	0.33	K8H004Q01	1.16	K8H005Q01	mg l^-1
NO3(N)	51	0.02	K8H005Q01	0.081	K8H004Q01	0.317	K8H005Q01	0.665	K8H005Q01	mg l^-1
Sulphate	51	10.7	K8H005Q01	157.4	K8H004Q01	872.3	K8H004Q01	1206.4	K8H004Q01	mg l^-1
Chloride	51	99.6	K8H005Q01	1011.5	K8H004Q01	6985.2	K8H004Q01	9079.9	K8H004Q01	mg l^-1
Sodium	51	50.9	K8H005Q01	551.5	K8H004Q01	3802.4	K8H004Q01	4910.7	K8H004Q01	mg l^-1
Magnesium	51	7.2	K8H005Q01	63.4	K8H004Q01	469	K8H004Q01	604	K8H004Q01	mg l^-1
TDS	51	210	K8H005Q01	1897	K8H004Q01	12709	K8H004Q01	16428	K8H004Q01	mg l^-1
Conductivity	51	38.2	K8H005Q01	356	K8H004Q01	1958	K8H004Q01	2400	K8H004Q01	mS m^-1

(7) Catchment K80F: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

K8H004Q01 51 Tsitsikama River at Goverment Ground-Hui 6

Station	total n samples	description	map code
K8H004Q01	51	Tsitsikama River at Goverment Ground-Hui	6

K80F - 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 7.52 K8H004Q01 8.04 K8H004Q01 8.22 K8H004Q01 8.33 K8H004Q01 -log [H⁺]

Fluoride 27 0.18 K8H004Q01 0.27 K8H004Q01 0.36 K8H004Q01 1.03 K8H004Q01 mg l^-1

NO3(N) 27 0.02 K8H004Q01 0.055 K8H004Q01 0.238 K8H004Q01 0.424 K8H004Q01 mg l^-1

Sulphate 27 157.4 K8H004Q01 633.2 K8H004Q01 1014.7 K8H004Q01 1206.4 K8H004Q01 mg l^-1

Chloride 27 1011.5 K8H004Q01 4786.2 K8H004Q01 7991.5 K8H004Q01 9079.9 K8H004Q01 mg l^-1

Sodium 27 551.5 K8H004Q01 2694.3 K8H004Q01 4444 K8H004Q01 4910.7 K8H004Q01 mg l^-1

Magnesium 27 63.4 K8H004Q01 304.3 K8H004Q01 532.6 K8H004Q01 604 K8H004Q01 mg l^-1

TDS 27 1897 K8H004Q01 8971 K8H004Q01 14537 K8H004Q01 16428 K8H004Q01 mg l^-1

Conductivity 27 356 K8H004Q01 1450 K8H004Q01 2162 K8H004Q01 2400 K8H004Q01 mS m^-1

Summary of classification (consituents in each range in brackets): K80F n=27 Class 3: I( ) II( ) III(SO4 Cl Na Mg TDS EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	27	7.52	K8H004Q01	8.04	K8H004Q01	8.22	K8H004Q01	8.33	K8H004Q01	-log [H⁺]
Fluoride	27	0.18	K8H004Q01	0.27	K8H004Q01	0.36	K8H004Q01	1.03	K8H004Q01	mg l^-1
NO3(N)	27	0.02	K8H004Q01	0.055	K8H004Q01	0.238	K8H004Q01	0.424	K8H004Q01	mg l^-1
Sulphate	27	157.4	K8H004Q01	633.2	K8H004Q01	1014.7	K8H004Q01	1206.4	K8H004Q01	mg l^-1
Chloride	27	1011.5	K8H004Q01	4786.2	K8H004Q01	7991.5	K8H004Q01	9079.9	K8H004Q01	mg l^-1
Sodium	27	551.5	K8H004Q01	2694.3	K8H004Q01	4444	K8H004Q01	4910.7	K8H004Q01	mg l^-1
Magnesium	27	63.4	K8H004Q01	304.3	K8H004Q01	532.6	K8H004Q01	604	K8H004Q01	mg l^-1
TDS	27	1897	K8H004Q01	8971	K8H004Q01	14537	K8H004Q01	16428	K8H004Q01	mg l^-1
Conductivity	27	356	K8H004Q01	1450	K8H004Q01	2162	K8H004Q01	2400	K8H004Q01	mS m^-1

(9) Catchment K90B: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

K9H002Q01 dam Krom River-Churchill Dam on Krom River: none

K9H001Q01 dam Krom River-Churchhill Dam on Krom Riv: D none

Station	total n samples	description	map code
K9H002Q01	dam	Krom River-Churchill Dam on Krom River:	none
K9H001Q01	dam	Krom River-Churchhill Dam on Krom Riv: D	none

K90B - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(11) Catchment K90D: Total number of "H...Q" (flow gauging, quality) stations = 4.

Station total n
samples description map
code

K9H002Q01 dam Krom River-Churchill Dam on Krom River: none

K9H001Q01 dam Krom River-Churchhill Dam on Krom Riv: D none

K9H003Q01 dam Impofu-Elandsjagt Dam on Krom River: Dow none

K9H004Q01 dam Impofu-Elandsjagt Dam on Krom Riv: Pipel none

Station	total n samples	description	map code
K9H002Q01	dam	Krom River-Churchill Dam on Krom River:	none
K9H001Q01	dam	Krom River-Churchhill Dam on Krom Riv: D	none
K9H003Q01	dam	Impofu-Elandsjagt Dam on Krom River: Dow	none
K9H004Q01	dam	Impofu-Elandsjagt Dam on Krom Riv: Pipel	none

K90D - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(12) Catchment K90E: Total number of "H...Q" (flow gauging, quality) stations = 3.

Station total n
samples description map
code

K9H003Q01 dam Impofu-Elandsjagt Dam on Krom River: Dow none

K9H004Q01 dam Impofu-Elandsjagt Dam on Krom Riv: Pipel none

K9H006Q01 36 Krom River at Osbosch-Rivertide 7

Station	total n samples	description	map code
K9H003Q01	dam	Impofu-Elandsjagt Dam on Krom River: Dow	none
K9H004Q01	dam	Impofu-Elandsjagt Dam on Krom Riv: Pipel	none
K9H006Q01	36	Krom River at Osbosch-Rivertide	7

K90E - 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 7.87 K9H006Q01 8.24 K9H006Q01 8.46 K9H006Q01 8.56 K9H006Q01 -log [H⁺]

Fluoride 27 0.37 K9H006Q01 0.5 K9H006Q01 0.59 K9H006Q01 0.67 K9H006Q01 mg l^-1

NO3(N) 27 0.02 K9H006Q01 0.04 K9H006Q01 0.086 K9H006Q01 0.13 K9H006Q01 mg l^-1

Sulphate 27 1909.3 K9H006Q01 2688.3 K9H006Q01 2936.6 K9H006Q01 3196.6 K9H006Q01 mg l^-1

Chloride 27 14358.8 K9H006Q01 20061.4 K9H006Q01 21090.4 K9H006Q01 21648.5 K9H006Q01 mg l^-1

Sodium 27 7931.2 K9H006Q01 11370 K9H006Q01 11788.4 K9H006Q01 11942.2 K9H006Q01 mg l^-1

Magnesium 27 302.8 K9H006Q01 1307.5 K9H006Q01 1419.1 K9H006Q01 1468 K9H006Q01 mg l^-1

TDS 27 25910 K9H006Q01 36224 K9H006Q01 38200 K9H006Q01 38745 K9H006Q01 mg l^-1

Conductivity 27 3400 K9H006Q01 4380 K9H006Q01 4880 K9H006Q01 5240 K9H006Q01 mS m^-1

Summary of classification (consituents in each range in brackets): K90E n=27 Class 3: I( ) II( ) III(SO4 Cl Na Mg TDS EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	27	7.87	K9H006Q01	8.24	K9H006Q01	8.46	K9H006Q01	8.56	K9H006Q01	-log [H⁺]
Fluoride	27	0.37	K9H006Q01	0.5	K9H006Q01	0.59	K9H006Q01	0.67	K9H006Q01	mg l^-1
NO3(N)	27	0.02	K9H006Q01	0.04	K9H006Q01	0.086	K9H006Q01	0.13	K9H006Q01	mg l^-1
Sulphate	27	1909.3	K9H006Q01	2688.3	K9H006Q01	2936.6	K9H006Q01	3196.6	K9H006Q01	mg l^-1
Chloride	27	14358.8	K9H006Q01	20061.4	K9H006Q01	21090.4	K9H006Q01	21648.5	K9H006Q01	mg l^-1
Sodium	27	7931.2	K9H006Q01	11370	K9H006Q01	11788.4	K9H006Q01	11942.2	K9H006Q01	mg l^-1
Magnesium	27	302.8	K9H006Q01	1307.5	K9H006Q01	1419.1	K9H006Q01	1468	K9H006Q01	mg l^-1
TDS	27	25910	K9H006Q01	36224	K9H006Q01	38200	K9H006Q01	38745	K9H006Q01	mg l^-1
Conductivity	27	3400	K9H006Q01	4380	K9H006Q01	4880	K9H006Q01	5240	K9H006Q01	mS m^-1

(13) Catchment K90F: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

K9H007Q01 0 Kruisfontein-Humansdorp none

Station	total n samples	description	map code
K9H007Q01	0	Kruisfontein-Humansdorp	none

(18) Catchment L11D: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

L1H002Q01 167 Sout River at Klipkraal 8

Station	total n samples	description	map code
L1H002Q01	167	Sout River at Klipkraal	8

L11D - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(19) Catchment L11E: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

L1H002Q01 167 Sout River at Klipkraal 9

L1H001Q01 38 Sout River at Kamferskraal 10

Station	total n samples	description	map code
L1H002Q01	167	Sout River at Klipkraal	9
L1H001Q01	38	Sout River at Kamferskraal	10

L11E - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(30) Catchment L21E: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

L2H003Q01 7 Buffels River at Murraysburg 11

Station	total n samples	description	map code
L2H003Q01	7	Buffels River at Murraysburg	11

L21E - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(42) Catchment L30C: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

L3H002Q01 dam Beervlei Dam on Groot River: Right Krug none

Station	total n samples	description	map code
L3H002Q01	dam	Beervlei Dam on Groot River: Right Krug	none

L30C - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(48) Catchment L60A: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

L6H002Q01 258 at Klipplaat Outspan on Heuningklip Rivi 12

Station	total n samples	description	map code
L6H002Q01	258	at Klipplaat Outspan on Heuningklip Rivi	12

L60A - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(49) Catchment L60B: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

L6H002Q01 258 at Klipplaat Outspan on Heuningklip Rivi 13

L6H001Q01 180 at Campherspoort on Heuningkliprivier 14

Station	total n samples	description	map code
L6H002Q01	258	at Klipplaat Outspan on Heuningklip Rivi	13
L6H001Q01	180	at Campherspoort on Heuningkliprivier	14

L60B - Stations used: 2, 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 7.56 L6H001Q01 8.33 L6H001Q01 8.5 L6H001Q01 8.63 L6H001Q01 -log [H⁺]

Fluoride 14 0.26 L6H001Q01 0.37 L6H001Q01 0.49 L6H001Q01 0.58 L6H001Q01 mg l^-1

NO3(N) 14 0.02 L6H001Q01 0.04 L6H001Q01 0.261 L6H001Q01 0.82 L6H001Q01 mg l^-1

Sulphate 14 24.8 L6H001Q01 639.2 L6H001Q01 1243.4 L6H001Q01 1508.9 L6H001Q01 mg l^-1

Chloride 14 19.6 L6H001Q01 1218.6 L6H001Q01 2383.9 L6H001Q01 2486.7 L6H001Q01 mg l^-1

Sodium 14 13.7 L6H001Q01 725.2 L6H001Q01 1317.1 L6H001Q01 1398.3 L6H001Q01 mg l^-1

Magnesium 14 12.1 L6H001Q01 140.1 L6H001Q01 291.1 L6H001Q01 310.7 L6H001Q01 mg l^-1

TDS 14 198 L6H001Q01 3238 L6H001Q01 6035 L6H001Q01 6093 L6H001Q01 mg l^-1

Conductivity 14 28.2 L6H001Q01 493 L6H001Q01 911 L6H001Q01 944 L6H001Q01 mS m^-1

Summary of classification (consituents in each range in brackets): L60B n=14 Class 3: I( ) II( ) III(SO4 Cl Na Mg TDS EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	14	7.56	L6H001Q01	8.33	L6H001Q01	8.5	L6H001Q01	8.63	L6H001Q01	-log [H⁺]
Fluoride	14	0.26	L6H001Q01	0.37	L6H001Q01	0.49	L6H001Q01	0.58	L6H001Q01	mg l^-1
NO3(N)	14	0.02	L6H001Q01	0.04	L6H001Q01	0.261	L6H001Q01	0.82	L6H001Q01	mg l^-1
Sulphate	14	24.8	L6H001Q01	639.2	L6H001Q01	1243.4	L6H001Q01	1508.9	L6H001Q01	mg l^-1
Chloride	14	19.6	L6H001Q01	1218.6	L6H001Q01	2383.9	L6H001Q01	2486.7	L6H001Q01	mg l^-1
Sodium	14	13.7	L6H001Q01	725.2	L6H001Q01	1317.1	L6H001Q01	1398.3	L6H001Q01	mg l^-1
Magnesium	14	12.1	L6H001Q01	140.1	L6H001Q01	291.1	L6H001Q01	310.7	L6H001Q01	mg l^-1
TDS	14	198	L6H001Q01	3238	L6H001Q01	6035	L6H001Q01	6093	L6H001Q01	mg l^-1
Conductivity	14	28.2	L6H001Q01	493	L6H001Q01	911	L6H001Q01	944	L6H001Q01	mS m^-1

(51) Catchment L70B: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

L7H002Q01 137 Groot River at Steytlerville 15

Station	total n samples	description	map code
L7H002Q01	137	Groot River at Steytlerville	15

L70B - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(54) Catchment L70E: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

L7H005Q01 178 Groot River at Drie Kuilen 16

L7H007Q01 346 Groot River at Sandpoort 170 17

Station	total n samples	description	map code
L7H005Q01	178	Groot River at Drie Kuilen	16
L7H007Q01	346	Groot River at Sandpoort 170	17

L70E - Stations used: 2, Samples selected: 56 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 56 6.56 L7H007Q01 8.4 L7H007Q01 8.79 L7H007Q01 9.32 L7H007Q01 -log [H⁺]

Fluoride 56 0.05 L7H007Q01 0.34 L7H007Q01 0.46 L7H007Q01 0.55 L7H007Q01 mg l^-1

NO3(N) 56 0.02 L7H007Q01 0.04 L7H007Q01 0.073 L7H007Q01 0.211 L7H007Q01 mg l^-1

Sulphate 56 73.5 L7H007Q01 1212.1 L7H007Q01 2216.9 L7H007Q01 2795.1 L7H007Q01 mg l^-1

Chloride 56 161.2 L7H007Q01 3922.1 L7H007Q01 7773.1 L7H007Q01 9722.3 L7H007Q01 mg l^-1

Sodium 56 100.7 L7H007Q01 2172.5 L7H007Q01 3971 L7H007Q01 5097.8 L7H007Q01 mg l^-1

Magnesium 56 18 L7H007Q01 372.1 L7H007Q01 750.5 L7H007Q01 992.8 L7H007Q01 mg l^-1

TDS 56 522 L7H007Q01 8260 L7H007Q01 15445 L7H007Q01 19223 L7H007Q01 mg l^-1

Conductivity 56 84.4 L7H007Q01 1255 L7H007Q01 2184 L7H007Q01 2730 L7H007Q01 mS m^-1

Summary of classification (consituents in each range in brackets): L70E n=56 Class 3: I( ) II( ) III(SO4 Cl Na Mg TDS EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	56	6.56	L7H007Q01	8.4	L7H007Q01	8.79	L7H007Q01	9.32	L7H007Q01	-log [H⁺]
Fluoride	56	0.05	L7H007Q01	0.34	L7H007Q01	0.46	L7H007Q01	0.55	L7H007Q01	mg l^-1
NO3(N)	56	0.02	L7H007Q01	0.04	L7H007Q01	0.073	L7H007Q01	0.211	L7H007Q01	mg l^-1
Sulphate	56	73.5	L7H007Q01	1212.1	L7H007Q01	2216.9	L7H007Q01	2795.1	L7H007Q01	mg l^-1
Chloride	56	161.2	L7H007Q01	3922.1	L7H007Q01	7773.1	L7H007Q01	9722.3	L7H007Q01	mg l^-1
Sodium	56	100.7	L7H007Q01	2172.5	L7H007Q01	3971	L7H007Q01	5097.8	L7H007Q01	mg l^-1
Magnesium	56	18	L7H007Q01	372.1	L7H007Q01	750.5	L7H007Q01	992.8	L7H007Q01	mg l^-1
TDS	56	522	L7H007Q01	8260	L7H007Q01	15445	L7H007Q01	19223	L7H007Q01	mg l^-1
Conductivity	56	84.4	L7H007Q01	1255	L7H007Q01	2184	L7H007Q01	2730	L7H007Q01	mS m^-1

(56) Catchment L70G: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

L7H006Q01 1011 Groot River at Grootrivierspoort Up-S K 18

Station	total n samples	description	map code
L7H006Q01	1011	Groot River at Grootrivierspoort Up-S K	18

L70G - Stations used: 1, Samples selected: 164 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 164 6.79 L7H006Q01 7.78 L7H006Q01 8.02 L7H006Q01 8.23 L7H006Q01 -log [H⁺]

Fluoride 164 0.05 L7H006Q01 0.15 L7H006Q01 0.23 L7H006Q01 0.38 L7H006Q01 mg l^-1

NO3(N) 164 0.02 L7H006Q01 0.04 L7H006Q01 0.061 L7H006Q01 0.233 L7H006Q01 mg l^-1

Sulphate 164 4.5 L7H006Q01 41.3 L7H006Q01 195.3 L7H006Q01 853.9 L7H006Q01 mg l^-1

Chloride 164 29.7 L7H006Q01 147.4 L7H006Q01 482.2 L7H006Q01 2003.2 L7H006Q01 mg l^-1

Sodium 164 16.5 L7H006Q01 84.5 L7H006Q01 286.9 L7H006Q01 1167.5 L7H006Q01 mg l^-1

Magnesium 164 3.6 L7H006Q01 16.2 L7H006Q01 55.1 L7H006Q01 208.1 L7H006Q01 mg l^-1

TDS 164 84 L7H006Q01 372 L7H006Q01 1183 L7H006Q01 4538 L7H006Q01 mg l^-1

Conductivity 164 16.9 L7H006Q01 69.3 L7H006Q01 214.8 L7H006Q01 738 L7H006Q01 mS m^-1

Summary of classification (consituents in each range in brackets): L70G n=164 Class 2: I(Mg) II(Cl Na TDS EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	164	6.79	L7H006Q01	7.78	L7H006Q01	8.02	L7H006Q01	8.23	L7H006Q01	-log [H⁺]
Fluoride	164	0.05	L7H006Q01	0.15	L7H006Q01	0.23	L7H006Q01	0.38	L7H006Q01	mg l^-1
NO3(N)	164	0.02	L7H006Q01	0.04	L7H006Q01	0.061	L7H006Q01	0.233	L7H006Q01	mg l^-1
Sulphate	164	4.5	L7H006Q01	41.3	L7H006Q01	195.3	L7H006Q01	853.9	L7H006Q01	mg l^-1
Chloride	164	29.7	L7H006Q01	147.4	L7H006Q01	482.2	L7H006Q01	2003.2	L7H006Q01	mg l^-1
Sodium	164	16.5	L7H006Q01	84.5	L7H006Q01	286.9	L7H006Q01	1167.5	L7H006Q01	mg l^-1
Magnesium	164	3.6	L7H006Q01	16.2	L7H006Q01	55.1	L7H006Q01	208.1	L7H006Q01	mg l^-1
TDS	164	84	L7H006Q01	372	L7H006Q01	1183	L7H006Q01	4538	L7H006Q01	mg l^-1
Conductivity	164	16.9	L7H006Q01	69.3	L7H006Q01	214.8	L7H006Q01	738	L7H006Q01	mS m^-1

(61) Catchment L82A: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

L8H002Q01 429 at Welgelegen on Haarlemspruit Jordaan 19

Station	total n samples	description	map code
L8H002Q01	429	at Welgelegen on Haarlemspruit Jordaan	19

L82A - Stations used: 1, Samples selected: 58 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 58 5.21 L8H002Q01 6.94 L8H002Q01 7.54 L8H002Q01 8.19 L8H002Q01 -log [H⁺]

Fluoride 58 0.05 L8H002Q01 0.1 L8H002Q01 0.13 L8H002Q01 0.17 L8H002Q01 mg l^-1

NO3(N) 58 0.02 L8H002Q01 0.055 L8H002Q01 0.217 L8H002Q01 0.469 L8H002Q01 mg l^-1

Sulphate 58 2 L8H002Q01 4.9 L8H002Q01 9.1 L8H002Q01 14.3 L8H002Q01 mg l^-1

Chloride 58 9.7 L8H002Q01 28.9 L8H002Q01 36.3 L8H002Q01 44 L8H002Q01 mg l^-1

Sodium 58 4.6 L8H002Q01 14.4 L8H002Q01 18.3 L8H002Q01 21.5 L8H002Q01 mg l^-1

Magnesium 58 1.1 L8H002Q01 2.4 L8H002Q01 2.9 L8H002Q01 3.9 L8H002Q01 mg l^-1

TDS 58 30 L8H002Q01 66 L8H002Q01 81 L8H002Q01 92 L8H002Q01 mg l^-1

Conductivity 58 4.8 L8H002Q01 13.5 L8H002Q01 16.6 L8H002Q01 19.9 L8H002Q01 mS m^-1

Summary of classification: L82A n=58 Class 0

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	58	5.21	L8H002Q01	6.94	L8H002Q01	7.54	L8H002Q01	8.19	L8H002Q01	-log [H⁺]
Fluoride	58	0.05	L8H002Q01	0.1	L8H002Q01	0.13	L8H002Q01	0.17	L8H002Q01	mg l^-1
NO3(N)	58	0.02	L8H002Q01	0.055	L8H002Q01	0.217	L8H002Q01	0.469	L8H002Q01	mg l^-1
Sulphate	58	2	L8H002Q01	4.9	L8H002Q01	9.1	L8H002Q01	14.3	L8H002Q01	mg l^-1
Chloride	58	9.7	L8H002Q01	28.9	L8H002Q01	36.3	L8H002Q01	44	L8H002Q01	mg l^-1
Sodium	58	4.6	L8H002Q01	14.4	L8H002Q01	18.3	L8H002Q01	21.5	L8H002Q01	mg l^-1
Magnesium	58	1.1	L8H002Q01	2.4	L8H002Q01	2.9	L8H002Q01	3.9	L8H002Q01	mg l^-1
TDS	58	30	L8H002Q01	66	L8H002Q01	81	L8H002Q01	92	L8H002Q01	mg l^-1
Conductivity	58	4.8	L8H002Q01	13.5	L8H002Q01	16.6	L8H002Q01	19.9	L8H002Q01	mS m^-1

(64) Catchment L82D: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

L8H005Q01 357 Kouga River at Stuurmanskraal 20

L8H001Q01 494 Wabooms River at Diepkloof 21

Station	total n samples	description	map code
L8H005Q01	357	Kouga River at Stuurmanskraal	20
L8H001Q01	494	Wabooms River at Diepkloof	21

L82D - Stations used: 2, Samples selected: 132 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 132 4.35 L8H001Q01 6.99 L8H001Q01 7.61 L8H005Q01 8.56 L8H001Q01 -log [H⁺]

Fluoride 132 0.05 L8H001Q01 0.1 L8H005Q01 0.14 L8H005Q01 0.21 L8H001Q01 mg l^-1

NO3(N) 132 0.02 L8H001Q01 0.055 L8H005Q01 0.155 L8H001Q01 0.883 L8H005Q01 mg l^-1

Sulphate 132 2 L8H005Q01 6.3 L8H001Q01 10.6 L8H005Q01 15 L8H001Q01 mg l^-1

Chloride 132 5 L8H001Q01 21.6 L8H005Q01 38.7 L8H005Q01 51.1 L8H005Q01 mg l^-1

Sodium 132 4.2 L8H001Q01 11.2 L8H005Q01 18.5 L8H005Q01 30 L8H005Q01 mg l^-1

Magnesium 132 0.5 L8H001Q01 2.2 L8H005Q01 4 L8H005Q01 5.3 L8H001Q01 mg l^-1

TDS 132 22 L8H001Q01 60 L8H005Q01 91 L8H005Q01 126 L8H005Q01 mg l^-1

Conductivity 132 5.3 L8H001Q01 10.9 L8H005Q01 18.8 L8H005Q01 23.6 L8H005Q01 mS m^-1

Summary of classification: L82D n=132 Class 0

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	132	4.35	L8H001Q01	6.99	L8H001Q01	7.61	L8H005Q01	8.56	L8H001Q01	-log [H⁺]
Fluoride	132	0.05	L8H001Q01	0.1	L8H005Q01	0.14	L8H005Q01	0.21	L8H001Q01	mg l^-1
NO3(N)	132	0.02	L8H001Q01	0.055	L8H005Q01	0.155	L8H001Q01	0.883	L8H005Q01	mg l^-1
Sulphate	132	2	L8H005Q01	6.3	L8H001Q01	10.6	L8H005Q01	15	L8H001Q01	mg l^-1
Chloride	132	5	L8H001Q01	21.6	L8H005Q01	38.7	L8H005Q01	51.1	L8H005Q01	mg l^-1
Sodium	132	4.2	L8H001Q01	11.2	L8H005Q01	18.5	L8H005Q01	30	L8H005Q01	mg l^-1
Magnesium	132	0.5	L8H001Q01	2.2	L8H005Q01	4	L8H005Q01	5.3	L8H001Q01	mg l^-1
TDS	132	22	L8H001Q01	60	L8H005Q01	91	L8H005Q01	126	L8H005Q01	mg l^-1
Conductivity	132	5.3	L8H001Q01	10.9	L8H005Q01	18.8	L8H005Q01	23.6	L8H005Q01	mS m^-1

(65) Catchment L82E: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

L8H005Q01 357 Kouga River at Stuurmanskraal 22

Station	total n samples	description	map code
L8H005Q01	357	Kouga River at Stuurmanskraal	22

L82E - Stations used: 1, 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 5.26 L8H005Q01 7.28 L8H005Q01 7.75 L8H005Q01 8.34 L8H005Q01 -log [H⁺]

Fluoride 68 0.05 L8H005Q01 0.1 L8H005Q01 0.15 L8H005Q01 0.17 L8H005Q01 mg l^-1

NO3(N) 68 0.02 L8H005Q01 0.049 L8H005Q01 0.156 L8H005Q01 0.883 L8H005Q01 mg l^-1

Sulphate 68 2 L8H005Q01 6.4 L8H005Q01 10.3 L8H005Q01 13.4 L8H005Q01 mg l^-1

Chloride 68 20.9 L8H005Q01 31.8 L8H005Q01 42 L8H005Q01 51.1 L8H005Q01 mg l^-1

Sodium 68 9.7 L8H005Q01 16.1 L8H005Q01 20.8 L8H005Q01 30 L8H005Q01 mg l^-1

Magnesium 68 1.6 L8H005Q01 3.1 L8H005Q01 4.1 L8H005Q01 4.5 L8H005Q01 mg l^-1

TDS 68 56 L8H005Q01 80 L8H005Q01 100 L8H005Q01 126 L8H005Q01 mg l^-1

Conductivity 68 9.9 L8H005Q01 15.7 L8H005Q01 20.8 L8H005Q01 23.6 L8H005Q01 mS m^-1

Summary of classification: L82E n=68 Class 0

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	68	5.26	L8H005Q01	7.28	L8H005Q01	7.75	L8H005Q01	8.34	L8H005Q01	-log [H⁺]
Fluoride	68	0.05	L8H005Q01	0.1	L8H005Q01	0.15	L8H005Q01	0.17	L8H005Q01	mg l^-1
NO3(N)	68	0.02	L8H005Q01	0.049	L8H005Q01	0.156	L8H005Q01	0.883	L8H005Q01	mg l^-1
Sulphate	68	2	L8H005Q01	6.4	L8H005Q01	10.3	L8H005Q01	13.4	L8H005Q01	mg l^-1
Chloride	68	20.9	L8H005Q01	31.8	L8H005Q01	42	L8H005Q01	51.1	L8H005Q01	mg l^-1
Sodium	68	9.7	L8H005Q01	16.1	L8H005Q01	20.8	L8H005Q01	30	L8H005Q01	mg l^-1
Magnesium	68	1.6	L8H005Q01	3.1	L8H005Q01	4.1	L8H005Q01	4.5	L8H005Q01	mg l^-1
TDS	68	56	L8H005Q01	80	L8H005Q01	100	L8H005Q01	126	L8H005Q01	mg l^-1
Conductivity	68	9.9	L8H005Q01	15.7	L8H005Q01	20.8	L8H005Q01	23.6	L8H005Q01	mS m^-1

(68) Catchment L82H: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

L8H006Q01 dam Kouga Dam on Kouga Riv: D-St Weir for Ri none

L8H004Q01 dam Kouga Dam on Kouga River: Right Canal none

Station	total n samples	description	map code
L8H006Q01	dam	Kouga Dam on Kouga Riv: D-St Weir for Ri	none
L8H004Q01	dam	Kouga Dam on Kouga River: Right Canal	none

L82H - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(69) Catchment L82J: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

L8H006Q01 dam Kouga Dam on Kouga Riv: D-St Weir for Ri none

L8H004Q01 dam Kouga Dam on Kouga River: Right Canal none

Station	total n samples	description	map code
L8H006Q01	dam	Kouga Dam on Kouga Riv: D-St Weir for Ri	none
L8H004Q01	dam	Kouga Dam on Kouga River: Right Canal	none

L82J - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(70) Catchment L90A: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

L9H003Q01 8 Gamtoos River at Patensie 23

Station	total n samples	description	map code
L9H003Q01	8	Gamtoos River at Patensie	23

L90A - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(71) Catchment L90B: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

L9H003Q01 8 Gamtoos River at Patensie 24

Station	total n samples	description	map code
L9H003Q01	8	Gamtoos River at Patensie	24

L90B - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(72) Catchment L90C: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

L9H005Q01 dam Loerie Dam on Loerie Spruit: Inlet Canal none

L9H004Q01 31 Gamtoos River at Buffelshoek Rail Bridg 25

Station	total n samples	description	map code
L9H005Q01	dam	Loerie Dam on Loerie Spruit: Inlet Canal	none
L9H004Q01	31	Gamtoos River at Buffelshoek Rail Bridg	25

L90C - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(74) Catchment M10B: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

M1H004Q01 454 Elands River at Wintcanton-Longhill 26

Station	total n samples	description	map code
M1H004Q01	454	Elands River at Wintcanton-Longhill	26

M10B - 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 6.07 M1H004Q01 7.28 M1H004Q01 7.71 M1H004Q01 8.03 M1H004Q01 -log [H⁺]

Fluoride 47 0.05 M1H004Q01 0.14 M1H004Q01 0.18 M1H004Q01 0.3 M1H004Q01 mg l^-1

NO3(N) 47 0.02 M1H004Q01 0.04 M1H004Q01 0.129 M1H004Q01 0.484 M1H004Q01 mg l^-1

Sulphate 47 7.9 M1H004Q01 17.5 M1H004Q01 32.1 M1H004Q01 51.3 M1H004Q01 mg l^-1

Chloride 47 5 M1H004Q01 101.6 M1H004Q01 127.8 M1H004Q01 182.1 M1H004Q01 mg l^-1

Sodium 47 21.7 M1H004Q01 56.4 M1H004Q01 68.7 M1H004Q01 90.4 M1H004Q01 mg l^-1

Magnesium 47 3 M1H004Q01 8.7 M1H004Q01 12.6 M1H004Q01 16.3 M1H004Q01 mg l^-1

TDS 47 71 M1H004Q01 218 M1H004Q01 263 M1H004Q01 354 M1H004Q01 mg l^-1

Conductivity 47 17.2 M1H004Q01 43.6 M1H004Q01 54.6 M1H004Q01 71 M1H004Q01 mS m^-1

Summary of classification (consituents in each range in brackets): M10B n=47 Class 1: I(Cl)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	47	6.07	M1H004Q01	7.28	M1H004Q01	7.71	M1H004Q01	8.03	M1H004Q01	-log [H⁺]
Fluoride	47	0.05	M1H004Q01	0.14	M1H004Q01	0.18	M1H004Q01	0.3	M1H004Q01	mg l^-1
NO3(N)	47	0.02	M1H004Q01	0.04	M1H004Q01	0.129	M1H004Q01	0.484	M1H004Q01	mg l^-1
Sulphate	47	7.9	M1H004Q01	17.5	M1H004Q01	32.1	M1H004Q01	51.3	M1H004Q01	mg l^-1
Chloride	47	5	M1H004Q01	101.6	M1H004Q01	127.8	M1H004Q01	182.1	M1H004Q01	mg l^-1
Sodium	47	21.7	M1H004Q01	56.4	M1H004Q01	68.7	M1H004Q01	90.4	M1H004Q01	mg l^-1
Magnesium	47	3	M1H004Q01	8.7	M1H004Q01	12.6	M1H004Q01	16.3	M1H004Q01	mg l^-1
TDS	47	71	M1H004Q01	218	M1H004Q01	263	M1H004Q01	354	M1H004Q01	mg l^-1
Conductivity	47	17.2	M1H004Q01	43.6	M1H004Q01	54.6	M1H004Q01	71	M1H004Q01	mS m^-1

(75) Catchment M10C: Total number of "H...Q" (flow gauging, quality) stations = 9.

Station total n
samples description map
code

M1H003Q01 68 Uitenhage Springs at Sandfontein-Uitenha 27

M1H001Q01 1 Swartkops River at Springfield-Springfon 28

M1H013Q01 0 Kruisrivier-Inggsville none

M1H025Q01 0 Kruisrivier-Bridge to Boschdrift none

M1H014Q01 0 Uitenhage-Uitenhage West Industrial Area none

M1H012Q01 263 Swartkops River at Uitenhage-Nivens Brid 29

M1H011Q01 61 Swartkops River at Uitenhage 30

M1H015Q01 sewage Uitenhage-Road to Sewage Works none

M1H004Q01 454 Elands River at Wintcanton-Longhill 31

Station	total n samples	description	map code
M1H003Q01	68	Uitenhage Springs at Sandfontein-Uitenha	27
M1H001Q01	1	Swartkops River at Springfield-Springfon	28
M1H013Q01	0	Kruisrivier-Inggsville	none
M1H025Q01	0	Kruisrivier-Bridge to Boschdrift	none
M1H014Q01	0	Uitenhage-Uitenhage West Industrial Area	none
M1H012Q01	263	Swartkops River at Uitenhage-Nivens Brid	29
M1H011Q01	61	Swartkops River at Uitenhage	30
M1H015Q01	sewage	Uitenhage-Road to Sewage Works	none
M1H004Q01	454	Elands River at Wintcanton-Longhill	31

M10C - Stations used: 8, Samples selected: 132 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 132 6.07 M1H004Q01 7.7 M1H012Q01 8.18 M1H012Q01 8.35 M1H012Q01 -log [H⁺]

Fluoride 132 0.05 M1H004Q01 0.17 M1H012Q01 0.28 M1H012Q01 0.38 M1H012Q01 mg l^-1

NO3(N) 132 0.02 M1H004Q01 0.16 M1H012Q01 1.368 M1H012Q01 3.085 M1H012Q01 mg l^-1

Sulphate 132 5.4 M1H003Q01 47.3 M1H012Q01 232.4 M1H012Q01 360.4 M1H012Q01 mg l^-1

Chloride 132 5 M1H004Q01 234.7 M1H012Q01 982.8 M1H012Q01 1481.5 M1H012Q01 mg l^-1

Sodium 132 16.1 M1H003Q01 133.8 M1H012Q01 571.4 M1H012Q01 871.9 M1H012Q01 mg l^-1

Magnesium 132 2.4 M1H003Q01 20.5 M1H012Q01 81.7 M1H012Q01 137 M1H012Q01 mg l^-1

TDS 132 70 M1H003Q01 556 M1H012Q01 2224 M1H012Q01 3232 M1H012Q01 mg l^-1

Conductivity 132 14.9 M1H003Q01 98.4 M1H012Q01 386 M1H012Q01 564 M1H012Q01 mS m^-1

Summary of classification (consituents in each range in brackets): M10C n=132 Class 3: I(SO4) II(Mg TDS) III(Cl Na EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	132	6.07	M1H004Q01	7.7	M1H012Q01	8.18	M1H012Q01	8.35	M1H012Q01	-log [H⁺]
Fluoride	132	0.05	M1H004Q01	0.17	M1H012Q01	0.28	M1H012Q01	0.38	M1H012Q01	mg l^-1
NO3(N)	132	0.02	M1H004Q01	0.16	M1H012Q01	1.368	M1H012Q01	3.085	M1H012Q01	mg l^-1
Sulphate	132	5.4	M1H003Q01	47.3	M1H012Q01	232.4	M1H012Q01	360.4	M1H012Q01	mg l^-1
Chloride	132	5	M1H004Q01	234.7	M1H012Q01	982.8	M1H012Q01	1481.5	M1H012Q01	mg l^-1
Sodium	132	16.1	M1H003Q01	133.8	M1H012Q01	571.4	M1H012Q01	871.9	M1H012Q01	mg l^-1
Magnesium	132	2.4	M1H003Q01	20.5	M1H012Q01	81.7	M1H012Q01	137	M1H012Q01	mg l^-1
TDS	132	70	M1H003Q01	556	M1H012Q01	2224	M1H012Q01	3232	M1H012Q01	mg l^-1
Conductivity	132	14.9	M1H003Q01	98.4	M1H012Q01	386	M1H012Q01	564	M1H012Q01	mS m^-1

(76) Catchment M10D: Total number of "H...Q" (flow gauging, quality) stations = 10.

Station total n
samples description map
code

M1H011Q01 61 Swartkops River at Uitenhage 32

M1H016Q01 0 Florida-Despatch Bridge none

M1H017Q01 0 Waagens Drift-Mountain View none

M1H018Q01 3 Swartkops River at Redhouse Farm 33

M1H019Q01 3 Swartkops River at Redhouse Yacht Club 34

M1H020Q01 3 Swartkops River at Redhouse Brickworks 35

M1H023Q01 2 Chatty River at Bethelsdorp-Veeplaas 36

M1H024Q01 2 Chatty River at Redhouse U-S Confluence 37

M1H022Q01 3 Swartkops River at Swartkops Settlers B 38

M1H021Q01 3 Swartkops River at Swartkops Yacht Club 39

Station	total n samples	description	map code
M1H011Q01	61	Swartkops River at Uitenhage	32
M1H016Q01	0	Florida-Despatch Bridge	none
M1H017Q01	0	Waagens Drift-Mountain View	none
M1H018Q01	3	Swartkops River at Redhouse Farm	33
M1H019Q01	3	Swartkops River at Redhouse Yacht Club	34
M1H020Q01	3	Swartkops River at Redhouse Brickworks	35
M1H023Q01	2	Chatty River at Bethelsdorp-Veeplaas	36
M1H024Q01	2	Chatty River at Redhouse U-S Confluence	37
M1H022Q01	3	Swartkops River at Swartkops Settlers B	38
M1H021Q01	3	Swartkops River at Swartkops Yacht Club	39

M10D - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(78) Catchment M20B: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

M2H002Q01 dam Lower Vanstadens Dam: Pipe Line From Dam none

M2H003Q01 65 Van Stadens River at V Stadens Riv..Pass 40

Station	total n samples	description	map code
M2H002Q01	dam	Lower Vanstadens Dam: Pipe Line From Dam	none
M2H003Q01	65	Van Stadens River at V Stadens Riv..Pass	40

M20B - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(82) Catchment N11B: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

N1H014Q01 eye Bloemhof Eye at Bloemhof-Babylonishe Tor none

N1H019Q01 dam Vanryneveldspas Dam on Sundays Riv: Left none

Station	total n samples	description	map code
N1H014Q01	eye	Bloemhof Eye at Bloemhof-Babylonishe Tor	none
N1H019Q01	dam	Vanryneveldspas Dam on Sundays Riv: Left	none

N11B - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(85) Catchment N12C: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

N1H019Q01 dam Vanryneveldspas Dam on Sundays Riv: Left none

Station	total n samples	description	map code
N1H019Q01	dam	Vanryneveldspas Dam on Sundays Riv: Left	none

N12C - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(87) Catchment N13B: Total number of "H...Q" (flow gauging, quality) stations = 3.

Station total n
samples description map
code

N1H012Q01 eye Toorberg Eye-Spruit No.2 at Lange Fontei none

N1H011Q01 eye Toorberg Eye-Spruit No.1 at Onbedacht none

N1H020Q01 dam Vanryneveldspas Dam on Sundays Riv: L CA none

Station	total n samples	description	map code
N1H012Q01	eye	Toorberg Eye-Spruit No.2 at Lange Fontei	none
N1H011Q01	eye	Toorberg Eye-Spruit No.1 at Onbedacht	none
N1H020Q01	dam	Vanryneveldspas Dam on Sundays Riv: L CA	none

N13B - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(88) Catchment N13C: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

N1H019Q01 dam Vanryneveldspas Dam on Sundays Riv: Left none

N1H013Q01 eye Mackies Puts Eye at Graaff-Reinet-Vanryn none

Station	total n samples	description	map code
N1H019Q01	dam	Vanryneveldspas Dam on Sundays Riv: Left	none
N1H013Q01	eye	Mackies Puts Eye at Graaff-Reinet-Vanryn	none

N13C - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(90) Catchment N14B: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

N1H008Q01 0 Kraairiver at Aberdeen none

Station	total n samples	description	map code
N1H008Q01	0	Kraairiver at Aberdeen	none

(100) Catchment N22D: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

N2H008Q01 285 Riet River at Groene Leegte 41

Station	total n samples	description	map code
N2H008Q01	285	Riet River at Groene Leegte	41

N22D - Stations used: 1, Samples selected: 9 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 9 7.49 N2H008Q01 8.02 N2H008Q01 8.35 N2H008Q01 8.77 N2H008Q01 -log [H⁺]

Fluoride 9 0.31 N2H008Q01 0.37 N2H008Q01 0.46 N2H008Q01 0.5 N2H008Q01 mg l^-1

NO3(N) 9 0.02 N2H008Q01 0.086 N2H008Q01 1.444 N2H008Q01 2.361 N2H008Q01 mg l^-1

Sulphate 9 20.2 N2H008Q01 76 N2H008Q01 162.9 N2H008Q01 180.8 N2H008Q01 mg l^-1

Chloride 9 27.7 N2H008Q01 244.4 N2H008Q01 619.1 N2H008Q01 713.3 N2H008Q01 mg l^-1

Sodium 9 24.9 N2H008Q01 150.7 N2H008Q01 303.7 N2H008Q01 308.1 N2H008Q01 mg l^-1

Magnesium 9 6.2 N2H008Q01 20.5 N2H008Q01 52.8 N2H008Q01 67.7 N2H008Q01 mg l^-1

TDS 9 200 N2H008Q01 687 N2H008Q01 1418 N2H008Q01 1518 N2H008Q01 mg l^-1

Conductivity 9 28.7 N2H008Q01 117.6 N2H008Q01 251.1 N2H008Q01 261 N2H008Q01 mS m^-1

Summary of classification (consituents in each range in brackets): N22D n=9 Class 3: I(Mg) II(Na TDS EC) III(Cl)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	9	7.49	N2H008Q01	8.02	N2H008Q01	8.35	N2H008Q01	8.77	N2H008Q01	-log [H⁺]
Fluoride	9	0.31	N2H008Q01	0.37	N2H008Q01	0.46	N2H008Q01	0.5	N2H008Q01	mg l^-1
NO3(N)	9	0.02	N2H008Q01	0.086	N2H008Q01	1.444	N2H008Q01	2.361	N2H008Q01	mg l^-1
Sulphate	9	20.2	N2H008Q01	76	N2H008Q01	162.9	N2H008Q01	180.8	N2H008Q01	mg l^-1
Chloride	9	27.7	N2H008Q01	244.4	N2H008Q01	619.1	N2H008Q01	713.3	N2H008Q01	mg l^-1
Sodium	9	24.9	N2H008Q01	150.7	N2H008Q01	303.7	N2H008Q01	308.1	N2H008Q01	mg l^-1
Magnesium	9	6.2	N2H008Q01	20.5	N2H008Q01	52.8	N2H008Q01	67.7	N2H008Q01	mg l^-1
TDS	9	200	N2H008Q01	687	N2H008Q01	1418	N2H008Q01	1518	N2H008Q01	mg l^-1
Conductivity	9	28.7	N2H008Q01	117.6	N2H008Q01	251.1	N2H008Q01	261	N2H008Q01	mS m^-1

(101) Catchment N22E: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

N2H008Q01 285 Riet River at Groene Leegte 42

N2H007Q01 405 Sundays River at De Draay 43

Station	total n samples	description	map code
N2H008Q01	285	Riet River at Groene Leegte	42
N2H007Q01	405	Sundays River at De Draay	43

N22E - Stations used: 2, Samples selected: 33 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 33 7.24 N2H007Q01 8.21 N2H007Q01 8.51 N2H007Q01 8.77 N2H008Q01 -log [H⁺]

Fluoride 33 0.29 N2H007Q01 0.41 N2H007Q01 0.58 N2H007Q01 1.03 N2H007Q01 mg l^-1

NO3(N) 33 0.02 N2H007Q01 0.204 N2H007Q01 1.021 N2H007Q01 2.361 N2H008Q01 mg l^-1

Sulphate 33 20.2 N2H008Q01 120.8 N2H007Q01 479.7 N2H007Q01 868.3 N2H007Q01 mg l^-1

Chloride 33 27.7 N2H008Q01 278.1 N2H007Q01 1249.7 N2H007Q01 2203.5 N2H007Q01 mg l^-1

Sodium 33 24.9 N2H008Q01 191.7 N2H008Q01 724.8 N2H007Q01 1163.2 N2H007Q01 mg l^-1

Magnesium 33 6.2 N2H008Q01 35.5 N2H008Q01 143.1 N2H007Q01 245.2 N2H007Q01 mg l^-1

TDS 33 200 N2H008Q01 883 N2H008Q01 2992 N2H007Q01 4942 N2H007Q01 mg l^-1

Conductivity 33 28.7 N2H008Q01 166 N2H008Q01 544.3 N2H007Q01 787 N2H007Q01 mS m^-1

Summary of classification (consituents in each range in brackets): N22E n=33 Class 3: I( ) II(SO4) III(Cl Na Mg TDS EC)

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	33	7.24	N2H007Q01	8.21	N2H007Q01	8.51	N2H007Q01	8.77	N2H008Q01	-log [H⁺]
Fluoride	33	0.29	N2H007Q01	0.41	N2H007Q01	0.58	N2H007Q01	1.03	N2H007Q01	mg l^-1
NO3(N)	33	0.02	N2H007Q01	0.204	N2H007Q01	1.021	N2H007Q01	2.361	N2H008Q01	mg l^-1
Sulphate	33	20.2	N2H008Q01	120.8	N2H007Q01	479.7	N2H007Q01	868.3	N2H007Q01	mg l^-1
Chloride	33	27.7	N2H008Q01	278.1	N2H007Q01	1249.7	N2H007Q01	2203.5	N2H007Q01	mg l^-1
Sodium	33	24.9	N2H008Q01	191.7	N2H008Q01	724.8	N2H007Q01	1163.2	N2H007Q01	mg l^-1
Magnesium	33	6.2	N2H008Q01	35.5	N2H008Q01	143.1	N2H007Q01	245.2	N2H007Q01	mg l^-1
TDS	33	200	N2H008Q01	883	N2H008Q01	2992	N2H007Q01	4942	N2H007Q01	mg l^-1
Conductivity	33	28.7	N2H008Q01	166	N2H008Q01	544.3	N2H007Q01	787	N2H007Q01	mS m^-1

(102) Catchment N23A: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

N2H009Q01 973 Volkers Skoenmakers River at Volkersri 44

N23A - Stations used: 1, Samples selected: 85 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 85 7.1 N2H009Q01 8.49 N2H009Q01 8.67 N2H009Q01 8.82 N2H009Q01 -log [H⁺]

Fluoride 85 0.41 N2H009Q01 0.58 N2H009Q01 0.75 N2H009Q01 1.33 N2H009Q01 mg l^-1

NO3(N) 85 0.02 N2H009Q01 0.608 N2H009Q01 0.903 N2H009Q01 1.16 N2H009Q01 mg l^-1

Sulphate 85 31.8 N2H009Q01 59.8 N2H009Q01 97.2 N2H009Q01 173 N2H009Q01 mg l^-1

Chloride 85 28.3 N2H009Q01 60.2 N2H009Q01 116.5 N2H009Q01 218.3 N2H009Q01 mg l^-1

Sodium 85 57.7 N2H009Q01 101.1 N2H009Q01 158.5 N2H009Q01 237.5 N2H009Q01 mg l^-1

Magnesium 85 10.5 N2H009Q01 20.1 N2H009Q01 29.1 N2H009Q01 46.9 N2H009Q01 mg l^-1

TDS 85 378 N2H009Q01 563 N2H009Q01 823 N2H009Q01 1248 N2H009Q01 mg l^-1

Conductivity 85 51.4 N2H009Q01 76.4 N2H009Q01 106.2 N2H009Q01 181 N2H009Q01 mS m^-1

Summary of classification (consituents in each range in brackets): N23A n=85 Class 1: I(Cl Na TDS EC)

(103) Catchment N23B: Total number of "H...Q" (flow gauging, quality) stations = 3.

Station total n
samples description map
code

N2H009Q01 973 Volkers Skoenmakers River at Volkersri 45

N2H011Q01 dam Darlington Dam on Sundays River: Left CA none

N2H010Q01 dam Darlington Dam on Sundays River: Left CA none

N23B - Stations used: 1, Samples selected: 85 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 85 7.1 N2H009Q01 8.49 N2H009Q01 8.67 N2H009Q01 8.82 N2H009Q01 -log [H⁺]

Fluoride 85 0.41 N2H009Q01 0.58 N2H009Q01 0.75 N2H009Q01 1.33 N2H009Q01 mg l^-1

NO3(N) 85 0.02 N2H009Q01 0.608 N2H009Q01 0.903 N2H009Q01 1.16 N2H009Q01 mg l^-1

Sulphate 85 31.8 N2H009Q01 59.8 N2H009Q01 97.2 N2H009Q01 173 N2H009Q01 mg l^-1

Chloride 85 28.3 N2H009Q01 60.2 N2H009Q01 116.5 N2H009Q01 218.3 N2H009Q01 mg l^-1

Sodium 85 57.7 N2H009Q01 101.1 N2H009Q01 158.5 N2H009Q01 237.5 N2H009Q01 mg l^-1

Magnesium 85 10.5 N2H009Q01 20.1 N2H009Q01 29.1 N2H009Q01 46.9 N2H009Q01 mg l^-1

TDS 85 378 N2H009Q01 563 N2H009Q01 823 N2H009Q01 1248 N2H009Q01 mg l^-1

Conductivity 85 51.4 N2H009Q01 76.4 N2H009Q01 106.2 N2H009Q01 181 N2H009Q01 mS m^-1

Summary of classification (consituents in each range in brackets): N23B n=85 Class 1: I(Cl Na TDS EC)

(106) Catchment N24C: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

N2H002Q01 359 Sundays River at Jansenville 46

N24C - 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 7.91 N2H002Q01 8.26 N2H002Q01 8.4 N2H002Q01 8.56 N2H002Q01 -log [H⁺]

Fluoride 25 0.33 N2H002Q01 0.56 N2H002Q01 0.73 N2H002Q01 0.81 N2H002Q01 mg l^-1

NO3(N) 25 0.02 N2H002Q01 0.04 N2H002Q01 1.013 N2H002Q01 2.112 N2H002Q01 mg l^-1

Sulphate 25 18.4 N2H002Q01 218.4 N2H002Q01 540.4 N2H002Q01 630.9 N2H002Q01 mg l^-1

Chloride 25 46.6 N2H002Q01 540.5 N2H002Q01 1276.3 N2H002Q01 1691.8 N2H002Q01 mg l^-1

Sodium 25 35.9 N2H002Q01 350.5 N2H002Q01 731.4 N2H002Q01 921.4 N2H002Q01 mg l^-1

Magnesium 25 6.8 N2H002Q01 59.7 N2H002Q01 145.7 N2H002Q01 177.2 N2H002Q01 mg l^-1

TDS 25 223 N2H002Q01 1544 N2H002Q01 3250 N2H002Q01 3924 N2H002Q01 mg l^-1

Conductivity 25 36.4 N2H002Q01 266 N2H002Q01 529 N2H002Q01 627 N2H002Q01 mS m^-1

Summary of classification (consituents in each range in brackets): N24C n=25 Class 3: I( ) II(SO4) III(Cl Na Mg TDS EC)

(107) Catchment N24D: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

N2H002Q01 359 Sundays River at Jansenville 47

N24D - 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 7.91 N2H002Q01 8.26 N2H002Q01 8.4 N2H002Q01 8.56 N2H002Q01 -log [H⁺]

Fluoride 25 0.33 N2H002Q01 0.56 N2H002Q01 0.73 N2H002Q01 0.81 N2H002Q01 mg l^-1

NO3(N) 25 0.02 N2H002Q01 0.04 N2H002Q01 1.013 N2H002Q01 2.112 N2H002Q01 mg l^-1

Sulphate 25 18.4 N2H002Q01 218.4 N2H002Q01 540.4 N2H002Q01 630.9 N2H002Q01 mg l^-1

Chloride 25 46.6 N2H002Q01 540.5 N2H002Q01 1276.3 N2H002Q01 1691.8 N2H002Q01 mg l^-1

Sodium 25 35.9 N2H002Q01 350.5 N2H002Q01 731.4 N2H002Q01 921.4 N2H002Q01 mg l^-1

Magnesium 25 6.8 N2H002Q01 59.7 N2H002Q01 145.7 N2H002Q01 177.2 N2H002Q01 mg l^-1

TDS 25 223 N2H002Q01 1544 N2H002Q01 3250 N2H002Q01 3924 N2H002Q01 mg l^-1

Conductivity 25 36.4 N2H002Q01 266 N2H002Q01 529 N2H002Q01 627 N2H002Q01 mS m^-1

Summary of classification (consituents in each range in brackets): N24D n=25 Class 3: I( ) II(SO4) III(Cl Na Mg TDS EC)

(110) Catchment N30C: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

N3H002Q01 830 Voel River at Riet Vley 48

N30C - Stations used: 1, Samples selected: 9 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 9 7.95 N3H002Q01 8.2 N3H002Q01 8.55 N3H002Q01 8.56 N3H002Q01 -log [H⁺]

Fluoride 9 0.38 N3H002Q01 0.48 N3H002Q01 0.63 N3H002Q01 0.68 N3H002Q01 mg l^-1

NO3(N) 9 0.02 N3H002Q01 0.297 N3H002Q01 0.746 N3H002Q01 1.38 N3H002Q01 mg l^-1

Sulphate 9 9.7 N3H002Q01 50.1 N3H002Q01 76.2 N3H002Q01 82.9 N3H002Q01 mg l^-1

Chloride 9 11.6 N3H002Q01 60.1 N3H002Q01 227.7 N3H002Q01 273.1 N3H002Q01 mg l^-1

Sodium 9 16.5 N3H002Q01 74.8 N3H002Q01 154.1 N3H002Q01 177.6 N3H002Q01 mg l^-1

Magnesium 9 5.9 N3H002Q01 16.8 N3H002Q01 24 N3H002Q01 34 N3H002Q01 mg l^-1

TDS 9 199 N3H002Q01 443 N3H002Q01 781 N3H002Q01 846 N3H002Q01 mg l^-1

Conductivity 9 27.8 N3H002Q01 60.8 N3H002Q01 122.9 N3H002Q01 143 N3H002Q01 mS m^-1

Summary of classification (consituents in each range in brackets): N30C n=9 Class 2: I(Na TDS EC) II(Cl)

(111) Catchment N40A: Total number of "H...Q" (flow gauging, quality) stations = 4.

Station total n
samples description map
code

N2H011Q01 dam Darlington Dam on Sundays River: Left CA none

N2H010Q01 dam Darlington Dam on Sundays River: Left CA none

N4H006Q01 canal Canal From Sundays River at Korhaanspoor none

N4H001Q01 426 Sundays River at Korhaanspoort-Courans D 49

N40A - Stations used: 1, Samples selected: 39 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 39 7.37 N4H001Q01 8.38 N4H001Q01 8.48 N4H001Q01 8.66 N4H001Q01 -log [H⁺]

Fluoride 39 0.26 N4H001Q01 0.6 N4H001Q01 0.67 N4H001Q01 0.68 N4H001Q01 mg l^-1

NO3(N) 39 0.02 N4H001Q01 0.093 N4H001Q01 0.218 N4H001Q01 0.492 N4H001Q01 mg l^-1

Sulphate 39 28.7 N4H001Q01 59.3 N4H001Q01 72.2 N4H001Q01 92.4 N4H001Q01 mg l^-1

Chloride 39 41 N4H001Q01 68.3 N4H001Q01 106.6 N4H001Q01 116.5 N4H001Q01 mg l^-1

Sodium 39 33.2 N4H001Q01 103.6 N4H001Q01 125.3 N4H001Q01 156.8 N4H001Q01 mg l^-1

Magnesium 39 6.2 N4H001Q01 20.5 N4H001Q01 22.5 N4H001Q01 26.6 N4H001Q01 mg l^-1

TDS 39 188 N4H001Q01 576 N4H001Q01 648 N4H001Q01 752 N4H001Q01 mg l^-1

Conductivity 39 29.7 N4H001Q01 77.9 N4H001Q01 93 N4H001Q01 98.8 N4H001Q01 mS m^-1

Summary of classification (consituents in each range in brackets): N40A n=39 Class 1: I(Cl Na TDS EC)

(112) Catchment N40B: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

N4H006Q01 canal Canal From Sundays River at Korhaanspoor none

N4H001Q01 426 Sundays River at Korhaanspoort-Courans D 50

N40B - Stations used: 1, Samples selected: 39 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 39 7.37 N4H001Q01 8.38 N4H001Q01 8.48 N4H001Q01 8.66 N4H001Q01 -log [H⁺]

Fluoride 39 0.26 N4H001Q01 0.6 N4H001Q01 0.67 N4H001Q01 0.68 N4H001Q01 mg l^-1

NO3(N) 39 0.02 N4H001Q01 0.093 N4H001Q01 0.218 N4H001Q01 0.492 N4H001Q01 mg l^-1

Sulphate 39 28.7 N4H001Q01 59.3 N4H001Q01 72.2 N4H001Q01 92.4 N4H001Q01 mg l^-1

Chloride 39 41 N4H001Q01 68.3 N4H001Q01 106.6 N4H001Q01 116.5 N4H001Q01 mg l^-1

Sodium 39 33.2 N4H001Q01 103.6 N4H001Q01 125.3 N4H001Q01 156.8 N4H001Q01 mg l^-1

Magnesium 39 6.2 N4H001Q01 20.5 N4H001Q01 22.5 N4H001Q01 26.6 N4H001Q01 mg l^-1

TDS 39 188 N4H001Q01 576 N4H001Q01 648 N4H001Q01 752 N4H001Q01 mg l^-1

Conductivity 39 29.7 N4H001Q01 77.9 N4H001Q01 93 N4H001Q01 98.8 N4H001Q01 mS m^-1

Summary of classification (consituents in each range in brackets): N40B n=39 Class 1: I(Cl Na TDS EC)

(113) Catchment N40C: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

N4H002Q01 155 Sundays Riv at Strathsomers Estate-Cleve 51

N4H004Q01 42 Sundays Riv at Landdrost Veeplaats-Dunbr 52

N40C - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(114) Catchment N40D: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

N4H005Q01 392 Coerney River at Selborne-Carlton 53

N40D - Stations used: 1, Samples selected: 83 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 83 8.03 N4H005Q01 8.36 N4H005Q01 8.48 N4H005Q01 8.6 N4H005Q01 -log [H⁺]

Fluoride 83 0.13 N4H005Q01 1.18 N4H005Q01 1.39 N4H005Q01 1.45 N4H005Q01 mg l^-1

NO3(N) 83 0.02 N4H005Q01 1.61 N4H005Q01 2.641 N4H005Q01 3.258 N4H005Q01 mg l^-1

Sulphate 83 72.7 N4H005Q01 581.8 N4H005Q01 699 N4H005Q01 836.8 N4H005Q01 mg l^-1

Chloride 83 264.4 N4H005Q01 2009.2 N4H005Q01 2348.8 N4H005Q01 2867.4 N4H005Q01 mg l^-1

Sodium 83 168.9 N4H005Q01 1413 N4H005Q01 1603.1 N4H005Q01 1717.5 N4H005Q01 mg l^-1

Magnesium 83 20.6 N4H005Q01 161.2 N4H005Q01 186 N4H005Q01 227.4 N4H005Q01 mg l^-1

TDS 83 663 N4H005Q01 4989 N4H005Q01 5628 N4H005Q01 5923 N4H005Q01 mg l^-1

Conductivity 83 109 N4H005Q01 775 N4H005Q01 880.4 N4H005Q01 947 N4H005Q01 mS m^-1

Summary of classification (consituents in each range in brackets): N40D n=83 Class 3: I(F) II( ) III(SO4 Cl Na Mg TDS EC)

(115) Catchment N40E: Total number of "H...Q" (flow gauging, quality) stations = 3.

Station total n
samples description map
code

N4H004Q01 42 Sundays Riv at Landdrost Veeplaats-Dunbr 54

N4H005Q01 392 Coerney River at Selborne-Carlton 55

N4H003Q01 376 Sundays Riv at Addo Drift East-Addo Brid 56

N40E - Stations used: 3, Samples selected: 83 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 83 8.03 N4H005Q01 8.36 N4H005Q01 8.48 N4H005Q01 8.6 N4H005Q01 -log [H⁺]

Fluoride 83 0.13 N4H005Q01 1.18 N4H005Q01 1.39 N4H005Q01 1.45 N4H005Q01 mg l^-1

NO3(N) 83 0.02 N4H005Q01 1.61 N4H005Q01 2.641 N4H005Q01 3.258 N4H005Q01 mg l^-1

Sulphate 83 72.7 N4H005Q01 581.8 N4H005Q01 699 N4H005Q01 836.8 N4H005Q01 mg l^-1

Chloride 83 264.4 N4H005Q01 2009.2 N4H005Q01 2348.8 N4H005Q01 2867.4 N4H005Q01 mg l^-1

Sodium 83 168.9 N4H005Q01 1413 N4H005Q01 1603.1 N4H005Q01 1717.5 N4H005Q01 mg l^-1

Magnesium 83 20.6 N4H005Q01 161.2 N4H005Q01 186 N4H005Q01 227.4 N4H005Q01 mg l^-1

TDS 83 663 N4H005Q01 4989 N4H005Q01 5628 N4H005Q01 5923 N4H005Q01 mg l^-1

Conductivity 83 109 N4H005Q01 775 N4H005Q01 880.4 N4H005Q01 947 N4H005Q01 mS m^-1

Summary of classification (consituents in each range in brackets): N40E n=83 Class 3: I(F) II( ) III(SO4 Cl Na Mg TDS EC)

(116) Catchment N40F: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

N4H003Q01 376 Sundays Riv at Addo Drift East-Addo Brid 57

N40F - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(120) Catchment P10D: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

P1H003Q01 656 Boesmans River at Donker Hoek-Alicedale 58

P10D - Stations used: 1, Samples selected: 84 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 84 7.38 P1H003Q01 8.45 P1H003Q01 8.64 P1H003Q01 8.77 P1H003Q01 -log [H⁺]

Fluoride 84 0.1 P1H003Q01 0.86 P1H003Q01 0.97 P1H003Q01 1.1 P1H003Q01 mg l^-1

NO3(N) 84 0.02 P1H003Q01 0.055 P1H003Q01 0.223 P1H003Q01 0.448 P1H003Q01 mg l^-1

Sulphate 84 22.8 P1H003Q01 185.9 P1H003Q01 227.7 P1H003Q01 571.2 P1H003Q01 mg l^-1

Chloride 84 98.8 P1H003Q01 938.5 P1H003Q01 1244.1 P1H003Q01 1645.3 P1H003Q01 mg l^-1

Sodium 84 65.9 P1H003Q01 606 P1H003Q01 759.8 P1H003Q01 938 P1H003Q01 mg l^-1

Magnesium 84 9.3 P1H003Q01 110.8 P1H003Q01 150.6 P1H003Q01 164.3 P1H003Q01 mg l^-1

TDS 84 274 P1H003Q01 2396 P1H003Q01 2986 P1H003Q01 3655 P1H003Q01 mg l^-1

Conductivity 84 50.4 P1H003Q01 393 P1H003Q01 488.8 P1H003Q01 605 P1H003Q01 mS m^-1

Summary of classification (consituents in each range in brackets): P10D n=84 Class 3: I(SO4) II( ) III(Cl Na Mg TDS EC)

(121) Catchment P10E: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

P1H003Q01 656 Boesmans River at Donker Hoek-Alicedale 59

P10E - Stations used: 1, Samples selected: 84 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 84 7.38 P1H003Q01 8.45 P1H003Q01 8.64 P1H003Q01 8.77 P1H003Q01 -log [H⁺]

Fluoride 84 0.1 P1H003Q01 0.86 P1H003Q01 0.97 P1H003Q01 1.1 P1H003Q01 mg l^-1

NO3(N) 84 0.02 P1H003Q01 0.055 P1H003Q01 0.223 P1H003Q01 0.448 P1H003Q01 mg l^-1

Sulphate 84 22.8 P1H003Q01 185.9 P1H003Q01 227.7 P1H003Q01 571.2 P1H003Q01 mg l^-1

Chloride 84 98.8 P1H003Q01 938.5 P1H003Q01 1244.1 P1H003Q01 1645.3 P1H003Q01 mg l^-1

Sodium 84 65.9 P1H003Q01 606 P1H003Q01 759.8 P1H003Q01 938 P1H003Q01 mg l^-1

Magnesium 84 9.3 P1H003Q01 110.8 P1H003Q01 150.6 P1H003Q01 164.3 P1H003Q01 mg l^-1

TDS 84 274 P1H003Q01 2396 P1H003Q01 2986 P1H003Q01 3655 P1H003Q01 mg l^-1

Conductivity 84 50.4 P1H003Q01 393 P1H003Q01 488.8 P1H003Q01 605 P1H003Q01 mS m^-1

Summary of classification (consituents in each range in brackets): P10E n=84 Class 3: I(SO4) II( ) III(Cl Na Mg TDS EC)

(122) Catchment P10F: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

P1H005Q01 1 Boesmans River at Woodbury 60

P10F - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(127) Catchment P30B: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

P3H001Q01 575 Kariega River at Smithfield-Lower Waterf 61

P30B - Stations used: 1, Samples selected: 83 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 83 7.73 P3H001Q01 8.15 P3H001Q01 8.34 P3H001Q01 8.69 P3H001Q01 -log [H⁺]

Fluoride 83 0.16 P3H001Q01 0.29 P3H001Q01 0.35 P3H001Q01 0.37 P3H001Q01 mg l^-1

NO3(N) 83 0.02 P3H001Q01 0.924 P3H001Q01 3.934 P3H001Q01 9.363 P3H001Q01 mg l^-1

Sulphate 83 14.9 P3H001Q01 126.6 P3H001Q01 162.6 P3H001Q01 253.6 P3H001Q01 mg l^-1

Chloride 83 360.4 P3H001Q01 1686.1 P3H001Q01 1895.9 P3H001Q01 2101.4 P3H001Q01 mg l^-1

Sodium 83 178.4 P3H001Q01 823.4 P3H001Q01 922.2 P3H001Q01 981.3 P3H001Q01 mg l^-1

Magnesium 83 33.7 P3H001Q01 150.5 P3H001Q01 163.9 P3H001Q01 190.4 P3H001Q01 mg l^-1

TDS 83 781 P3H001Q01 3345 P3H001Q01 3676 P3H001Q01 3936 P3H001Q01 mg l^-1

Conductivity 83 127 P3H001Q01 569 P3H001Q01 632.4 P3H001Q01 681 P3H001Q01 mS m^-1

Summary of classification (consituents in each range in brackets): P30B n=83 Class 3: I( ) II( ) III(Cl Na Mg TDS EC)

(128) Catchment P30C: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

P3H001Q01 575 Kariega River at Smithfield-Lower Waterf 62

P30C - Stations used: 1, Samples selected: 83 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 83 7.73 P3H001Q01 8.15 P3H001Q01 8.34 P3H001Q01 8.69 P3H001Q01 -log [H⁺]

Fluoride 83 0.16 P3H001Q01 0.29 P3H001Q01 0.35 P3H001Q01 0.37 P3H001Q01 mg l^-1

NO3(N) 83 0.02 P3H001Q01 0.924 P3H001Q01 3.934 P3H001Q01 9.363 P3H001Q01 mg l^-1

Sulphate 83 14.9 P3H001Q01 126.6 P3H001Q01 162.6 P3H001Q01 253.6 P3H001Q01 mg l^-1

Chloride 83 360.4 P3H001Q01 1686.1 P3H001Q01 1895.9 P3H001Q01 2101.4 P3H001Q01 mg l^-1

Sodium 83 178.4 P3H001Q01 823.4 P3H001Q01 922.2 P3H001Q01 981.3 P3H001Q01 mg l^-1

Magnesium 83 33.7 P3H001Q01 150.5 P3H001Q01 163.9 P3H001Q01 190.4 P3H001Q01 mg l^-1

TDS 83 781 P3H001Q01 3345 P3H001Q01 3676 P3H001Q01 3936 P3H001Q01 mg l^-1

Conductivity 83 127 P3H001Q01 569 P3H001Q01 632.4 P3H001Q01 681 P3H001Q01 mS m^-1

Summary of classification (consituents in each range in brackets): P30C n=83 Class 3: I( ) II( ) III(Cl Na Mg TDS EC)

(130) Catchment P40B: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

P4H001Q01 496 Kowie River at Bathurst-Wolfscrag 63

P40B - Stations used: 1, 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 7.96 P4H001Q01 8.37 P4H001Q01 8.48 P4H001Q01 8.69 P4H001Q01 -log [H⁺]

Fluoride 67 0.22 P4H001Q01 0.34 P4H001Q01 0.37 P4H001Q01 0.45 P4H001Q01 mg l^-1

NO3(N) 67 0.02 P4H001Q01 0.055 P4H001Q01 1.007 P4H001Q01 2.129 P4H001Q01 mg l^-1

Sulphate 67 56.3 P4H001Q01 126.2 P4H001Q01 173.9 P4H001Q01 661 P4H001Q01 mg l^-1

Chloride 67 296.7 P4H001Q01 1050.2 P4H001Q01 1406.9 P4H001Q01 2002.1 P4H001Q01 mg l^-1

Sodium 67 185.2 P4H001Q01 563.1 P4H001Q01 736.4 P4H001Q01 1016.7 P4H001Q01 mg l^-1

Magnesium 67 28.1 P4H001Q01 102.6 P4H001Q01 140.5 P4H001Q01 210.1 P4H001Q01 mg l^-1

TDS 67 769 P4H001Q01 2253 P4H001Q01 2909 P4H001Q01 3999 P4H001Q01 mg l^-1

Conductivity 67 137 P4H001Q01 388 P4H001Q01 493 P4H001Q01 689 P4H001Q01 mS m^-1

Summary of classification (consituents in each range in brackets): P40B n=67 Class 3: I( ) II( ) III(Cl Na Mg TDS EC)

(131) Catchment P40C: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

P4H001Q01 496 Kowie River at Bathurst-Wolfscrag 64

Q9H011Q01 coord
error Drainage region error for Kat River at Harringay-Upsher:
Secondary=P4 but station=Q9 !

Q9H011Q01 coord
error Kat River at Harringay-Upsher none

P40C - Stations used: 1, 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 7.96 P4H001Q01 8.37 P4H001Q01 8.48 P4H001Q01 8.69 P4H001Q01 -log [H⁺]

Fluoride 67 0.22 P4H001Q01 0.34 P4H001Q01 0.37 P4H001Q01 0.45 P4H001Q01 mg l^-1

NO3(N) 67 0.02 P4H001Q01 0.055 P4H001Q01 1.007 P4H001Q01 2.129 P4H001Q01 mg l^-1

Sulphate 67 56.3 P4H001Q01 126.2 P4H001Q01 173.9 P4H001Q01 661 P4H001Q01 mg l^-1

Chloride 67 296.7 P4H001Q01 1050.2 P4H001Q01 1406.9 P4H001Q01 2002.1 P4H001Q01 mg l^-1

Sodium 67 185.2 P4H001Q01 563.1 P4H001Q01 736.4 P4H001Q01 1016.7 P4H001Q01 mg l^-1

Magnesium 67 28.1 P4H001Q01 102.6 P4H001Q01 140.5 P4H001Q01 210.1 P4H001Q01 mg l^-1

TDS 67 769 P4H001Q01 2253 P4H001Q01 2909 P4H001Q01 3999 P4H001Q01 mg l^-1

Conductivity 67 137 P4H001Q01 388 P4H001Q01 493 P4H001Q01 689 P4H001Q01 mS m^-1

Summary of classification (consituents in each range in brackets): P40C n=67 Class 3: I( ) II( ) III(Cl Na Mg TDS EC)

(134) Catchment Q11B: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

Q1H024Q01 5 at Schoonbee on Groot-Brakrivier 65

Q11B - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(138) Catchment Q12B: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

Q1H014Q01 tunnel Teebus Canal From Oviston Tunnel Outlet none

Q12B - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(139) Catchment Q12C: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

Q1H014Q01 tunnel Teebus Canal From Oviston Tunnel Outlet none

Q1H012Q01 1042 Teebus River at Jan Blaauws Kop-Beaconsf 66

Q12C - Stations used: 1, Samples selected: 123 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 123 6.22 Q1H012Q01 8.1 Q1H012Q01 8.27 Q1H012Q01 8.54 Q1H012Q01 -log [H⁺]

Fluoride 123 0.1 Q1H012Q01 0.2 Q1H012Q01 0.27 Q1H012Q01 0.99 Q1H012Q01 mg l^-1

NO3(N) 123 0.055 Q1H012Q01 0.418 Q1H012Q01 0.555 Q1H012Q01 1.32 Q1H012Q01 mg l^-1

Sulphate 123 3 Q1H012Q01 12.6 Q1H012Q01 23.9 Q1H012Q01 173.3 Q1H012Q01 mg l^-1

Chloride 123 2.5 Q1H012Q01 6.1 Q1H012Q01 15.1 Q1H012Q01 211.2 Q1H012Q01 mg l^-1

Sodium 123 5 Q1H012Q01 8.9 Q1H012Q01 16.3 Q1H012Q01 201.6 Q1H012Q01 mg l^-1

Magnesium 123 5.4 Q1H012Q01 7.5 Q1H012Q01 10 Q1H012Q01 74.6 Q1H012Q01 mg l^-1

TDS 123 120 Q1H012Q01 157 Q1H012Q01 197 Q1H012Q01 1193 Q1H012Q01 mg l^-1

Conductivity 123 15.7 Q1H012Q01 21.7 Q1H012Q01 27 Q1H012Q01 173 Q1H012Q01 mS m^-1

Summary of classification: Q12C n=123 Class 0

(140) Catchment Q13A: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

Q1H020Q01 dam Grassridge Dam on Great Brak River: Righ none

Q1H022Q01 dam Grassridge Dam on Great Brak Riv: River none

Q13A - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(141) Catchment Q13B: Total number of "H...Q" (flow gauging, quality) stations = 4.

Station total n
samples description map
code

Q1H020Q01 dam Grassridge Dam on Great Brak River: Righ none

Q1H022Q01 dam Grassridge Dam on Great Brak Riv: River none

Q1H001Q01 736 at Katkop on Groot-Visrivier 67

Q1H017Q01 canal Canal Right From Great Fish River at K none

Q13B - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(142) Catchment Q13C: Total number of "H...Q" (flow gauging, quality) stations = 3.

Station total n
samples description map
code

Q1H001Q01 736 at Katkop on Groot-Visrivier 68

Q1H017Q01 canal Canal Right From Great Fish River at K none

Q3H004Q01 563 Pauls River at Coutzenburg 69

Q13C - Stations used: 2, Samples selected: 57 between 2001-01-01 and 2005-12-31.

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

pH 57 7.28 Q3H004Q01 8.44 Q3H004Q01 8.59 Q3H004Q01 8.82 Q3H004Q01 -log [H⁺]

Fluoride 57 0.28 Q3H004Q01 1.08 Q3H004Q01 1.22 Q3H004Q01 1.32 Q3H004Q01 mg l^-1

NO3(N) 57 0.02 Q3H004Q01 2.279 Q3H004Q01 3.025 Q3H004Q01 3.354 Q3H004Q01 mg l^-1

Sulphate 57 20 Q3H004Q01 94.3 Q3H004Q01 111.7 Q3H004Q01 152.3 Q3H004Q01 mg l^-1

Chloride 57 15.1 Q3H004Q01 72.2 Q3H004Q01 89.8 Q3H004Q01 119.1 Q3H004Q01 mg l^-1

Sodium 57 28.3 Q3H004Q01 201.3 Q3H004Q01 231.6 Q3H004Q01 246.9 Q3H004Q01 mg l^-1

Magnesium 57 9.4 Q3H004Q01 35.1 Q3H004Q01 38.7 Q3H004Q01 47.7 Q3H004Q01 mg l^-1

TDS 57 220 Q3H004Q01 1067 Q3H004Q01 1162 Q3H004Q01 1246 Q3H004Q01 mg l^-1

Conductivity 57 31.8 Q3H004Q01 126.8 Q3H004Q01 148.3 Q3H004Q01 164 Q3H004Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q13C n=57 Class 2: I(F Mg EC) II(Na TDS)

(146) Catchment Q14D: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

Q1H013Q01 341 Little Brak River at Zeeven Fonteynen 70

Q14D - Stations used: 1, Samples selected: 6 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 6 8.13 Q1H013Q01 8.44 Q1H013Q01 10.13 Q1H013Q01 10.38 Q1H013Q01 -log [H⁺]

Fluoride 6 0.17 Q1H013Q01 0.57 Q1H013Q01 0.79 Q1H013Q01 0.88 Q1H013Q01 mg l^-1

NO3(N) 6 0.02 Q1H013Q01 0.02 Q1H013Q01 1.37 Q1H013Q01 2.907 Q1H013Q01 mg l^-1

Sulphate 6 21.4 Q1H013Q01 29.7 Q1H013Q01 78.3 Q1H013Q01 83.9 Q1H013Q01 mg l^-1

Chloride 6 13.4 Q1H013Q01 24.8 Q1H013Q01 97.4 Q1H013Q01 119.9 Q1H013Q01 mg l^-1

Sodium 6 17.9 Q1H013Q01 101 Q1H013Q01 149.4 Q1H013Q01 155.5 Q1H013Q01 mg l^-1

Magnesium 6 7 Q1H013Q01 16.7 Q1H013Q01 29.9 Q1H013Q01 35.8 Q1H013Q01 mg l^-1

TDS 6 192 Q1H013Q01 447 Q1H013Q01 713 Q1H013Q01 851 Q1H013Q01 mg l^-1

Conductivity 6 27.6 Q1H013Q01 69 Q1H013Q01 96.5 Q1H013Q01 105.2 Q1H013Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q14D n=6 Class 3: I(Na TDS EC) II( ) III(pH)

(147) Catchment Q14E: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

Q1H013Q01 341 Little Brak River at Zeeven Fonteynen 71

Q14E - Stations used: 1, Samples selected: 6 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 6 8.13 Q1H013Q01 8.44 Q1H013Q01 10.13 Q1H013Q01 10.38 Q1H013Q01 -log [H⁺]

Fluoride 6 0.17 Q1H013Q01 0.57 Q1H013Q01 0.79 Q1H013Q01 0.88 Q1H013Q01 mg l^-1

NO3(N) 6 0.02 Q1H013Q01 0.02 Q1H013Q01 1.37 Q1H013Q01 2.907 Q1H013Q01 mg l^-1

Sulphate 6 21.4 Q1H013Q01 29.7 Q1H013Q01 78.3 Q1H013Q01 83.9 Q1H013Q01 mg l^-1

Chloride 6 13.4 Q1H013Q01 24.8 Q1H013Q01 97.4 Q1H013Q01 119.9 Q1H013Q01 mg l^-1

Sodium 6 17.9 Q1H013Q01 101 Q1H013Q01 149.4 Q1H013Q01 155.5 Q1H013Q01 mg l^-1

Magnesium 6 7 Q1H013Q01 16.7 Q1H013Q01 29.9 Q1H013Q01 35.8 Q1H013Q01 mg l^-1

TDS 6 192 Q1H013Q01 447 Q1H013Q01 713 Q1H013Q01 851 Q1H013Q01 mg l^-1

Conductivity 6 27.6 Q1H013Q01 69 Q1H013Q01 96.5 Q1H013Q01 105.2 Q1H013Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q14E n=6 Class 3: I(Na TDS EC) II( ) III(pH)

(149) Catchment Q21B: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

Q2H002Q01 1308 at Zoutspans Drift Zoutpan on Groot-Visr 72

Q21B - Stations used: 1, Samples selected: 163 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 163 7.44 Q2H002Q01 8.44 Q2H002Q01 8.58 Q2H002Q01 8.79 Q2H002Q01 -log [H⁺]

Fluoride 163 0.19 Q2H002Q01 0.89 Q2H002Q01 0.97 Q2H002Q01 1.25 Q2H002Q01 mg l^-1

NO3(N) 163 0.02 Q2H002Q01 2.611 Q2H002Q01 3.617 Q2H002Q01 4.343 Q2H002Q01 mg l^-1

Sulphate 163 7.5 Q2H002Q01 36.6 Q2H002Q01 45.7 Q2H002Q01 63.8 Q2H002Q01 mg l^-1

Chloride 163 8.4 Q2H002Q01 31.7 Q2H002Q01 41.4 Q2H002Q01 174.3 Q2H002Q01 mg l^-1

Sodium 163 15.1 Q2H002Q01 159.8 Q2H002Q01 174.8 Q2H002Q01 193.4 Q2H002Q01 mg l^-1

Magnesium 163 8.1 Q2H002Q01 35.6 Q2H002Q01 39.9 Q2H002Q01 42.8 Q2H002Q01 mg l^-1

TDS 163 205 Q2H002Q01 954 Q2H002Q01 1016 Q2H002Q01 1143 Q2H002Q01 mg l^-1

Conductivity 163 28.1 Q2H002Q01 106.4 Q2H002Q01 112 Q2H002Q01 117.2 Q2H002Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q21B n=163 Class 2: I(Na Mg EC) II(TDS)

(153) Catchment Q30B: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

Q3H004Q01 563 Pauls River at Coutzenburg 73

Q30B - Stations used: 1, Samples selected: 57 between 2001-01-01 and 2005-12-31.

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

pH 57 7.28 Q3H004Q01 8.44 Q3H004Q01 8.59 Q3H004Q01 8.82 Q3H004Q01 -log [H⁺]

Fluoride 57 0.28 Q3H004Q01 1.08 Q3H004Q01 1.22 Q3H004Q01 1.32 Q3H004Q01 mg l^-1

NO3(N) 57 0.02 Q3H004Q01 2.279 Q3H004Q01 3.025 Q3H004Q01 3.354 Q3H004Q01 mg l^-1

Sulphate 57 20 Q3H004Q01 94.3 Q3H004Q01 111.7 Q3H004Q01 152.3 Q3H004Q01 mg l^-1

Chloride 57 15.1 Q3H004Q01 72.2 Q3H004Q01 89.8 Q3H004Q01 119.1 Q3H004Q01 mg l^-1

Sodium 57 28.3 Q3H004Q01 201.3 Q3H004Q01 231.6 Q3H004Q01 246.9 Q3H004Q01 mg l^-1

Magnesium 57 9.4 Q3H004Q01 35.1 Q3H004Q01 38.7 Q3H004Q01 47.7 Q3H004Q01 mg l^-1

TDS 57 220 Q3H004Q01 1067 Q3H004Q01 1162 Q3H004Q01 1246 Q3H004Q01 mg l^-1

Conductivity 57 31.8 Q3H004Q01 126.8 Q3H004Q01 148.3 Q3H004Q01 164 Q3H004Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q30B n=57 Class 2: I(F Mg EC) II(Na TDS)

(154) Catchment Q30C: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

Q3H004Q01 563 Pauls River at Coutzenburg 74

Q3H005Q01 1222 at Rietfontyn Waaikraal on Groot-Visrivi 75

Q30C - Stations used: 2, Samples selected: 151 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 151 7.17 Q3H005Q01 8.29 Q3H005Q01 8.55 Q3H004Q01 8.82 Q3H004Q01 -log [H⁺]

Fluoride 151 0.1 Q3H005Q01 0.41 Q3H005Q01 1.19 Q3H004Q01 1.49 Q3H005Q01 mg l^-1

NO3(N) 151 0.02 Q3H005Q01 0.715 Q3H005Q01 2.718 Q3H004Q01 3.354 Q3H004Q01 mg l^-1

Sulphate 151 15.7 Q3H005Q01 36.5 Q3H005Q01 104.5 Q3H004Q01 169.6 Q3H005Q01 mg l^-1

Chloride 151 10.5 Q3H005Q01 26.5 Q3H005Q01 83.8 Q3H005Q01 145.5 Q3H005Q01 mg l^-1

Sodium 151 18.4 Q3H005Q01 55.8 Q3H005Q01 222.6 Q3H004Q01 315.1 Q3H005Q01 mg l^-1

Magnesium 151 7.6 Q3H005Q01 18.1 Q3H005Q01 37.9 Q3H004Q01 54.7 Q3H005Q01 mg l^-1

TDS 151 201 Q3H005Q01 397 Q3H004Q01 1142 Q3H004Q01 1445 Q3H005Q01 mg l^-1

Conductivity 151 27.9 Q3H005Q01 54 Q3H005Q01 142.9 Q3H004Q01 186 Q3H005Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q30C n=151 Class 2: I(F Mg EC) II(Na TDS)

(155) Catchment Q30D: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

Q3H005Q01 1222 at Rietfontyn Waaikraal on Groot-Visrivi 76

Q30D - Stations used: 1, Samples selected: 94 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 94 7.17 Q3H005Q01 8.23 Q3H005Q01 8.38 Q3H005Q01 8.61 Q3H005Q01 -log [H⁺]

Fluoride 94 0.1 Q3H005Q01 0.34 Q3H005Q01 0.51 Q3H005Q01 1.49 Q3H005Q01 mg l^-1

NO3(N) 94 0.02 Q3H005Q01 0.592 Q3H005Q01 0.897 Q3H005Q01 2.929 Q3H005Q01 mg l^-1

Sulphate 94 15.7 Q3H005Q01 28.8 Q3H005Q01 50.3 Q3H005Q01 169.6 Q3H005Q01 mg l^-1

Chloride 94 10.5 Q3H005Q01 19.3 Q3H005Q01 33.8 Q3H005Q01 145.5 Q3H005Q01 mg l^-1

Sodium 94 18.4 Q3H005Q01 40.8 Q3H005Q01 80.2 Q3H005Q01 315.1 Q3H005Q01 mg l^-1

Magnesium 94 7.6 Q3H005Q01 13 Q3H005Q01 29.8 Q3H005Q01 54.7 Q3H005Q01 mg l^-1

TDS 94 201 Q3H005Q01 314 Q3H005Q01 531 Q3H005Q01 1445 Q3H005Q01 mg l^-1

Conductivity 94 27.9 Q3H005Q01 42.1 Q3H005Q01 65.9 Q3H005Q01 186 Q3H005Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q30D n=94 Class 1: I(TDS)

(158) Catchment Q41B: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

Q4H004Q01 21 Tarka River at Beestekraal 77

Q41B - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(159) Catchment Q41C: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

Q4H004Q01 21 Tarka River at Beestekraal 78

Q41C - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(164) Catchment Q43B: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

Q4H002Q01 0 Vlekpoort River at Roberts Kraal none

Q4H003Q01 315 Vlekpoort River at Roberts Kraal 79

Q43B - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(167) Catchment Q44C: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

Q4H005Q01 792 Tarka River at Bridge Farm-Tarka Bridge 80

Q4H013Q01 382 Tarka River at Bridge Farm-Tarka Bridge 81

Q44C - Stations used: 2, Samples selected: 93 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 93 7.67 Q4H013Q01 8.42 Q4H013Q01 8.53 Q4H013Q01 8.77 Q4H013Q01 -log [H⁺]

Fluoride 93 0.34 Q4H013Q01 1.77 Q4H013Q01 1.94 Q4H013Q01 2.11 Q4H013Q01 mg l^-1

NO3(N) 93 0.02 Q4H013Q01 2.798 Q4H013Q01 3.257 Q4H013Q01 3.487 Q4H013Q01 mg l^-1

Sulphate 93 26.9 Q4H013Q01 280.2 Q4H013Q01 346 Q4H013Q01 375.6 Q4H013Q01 mg l^-1

Chloride 93 65 Q4H013Q01 288.9 Q4H013Q01 364.8 Q4H013Q01 419.2 Q4H013Q01 mg l^-1

Sodium 93 63.2 Q4H013Q01 440.6 Q4H013Q01 494.1 Q4H013Q01 535.5 Q4H013Q01 mg l^-1

Magnesium 93 13.8 Q4H013Q01 67.3 Q4H013Q01 76.7 Q4H013Q01 91.4 Q4H013Q01 mg l^-1

TDS 93 411 Q4H013Q01 1950 Q4H013Q01 2145 Q4H013Q01 2327 Q4H013Q01 mg l^-1

Conductivity 93 57.9 Q4H013Q01 263 Q4H013Q01 285 Q4H013Q01 304 Q4H013Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q44C n=93 Class 3: I(SO4) II(F Cl Mg TDS EC) III(Na)

(168) Catchment Q50A: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

Q5H005Q01 916 at Van Stadensdam Mortimer Weir on Groot 82

Q5H006Q01 dam Elands Drift Dam on Great Fish River: Le none

Q50A - Stations used: 1, Samples selected: 166 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 166 7.22 Q5H005Q01 8.28 Q5H005Q01 8.46 Q5H005Q01 8.85 Q5H005Q01 -log [H⁺]

Fluoride 166 0.1 Q5H005Q01 0.43 Q5H005Q01 0.68 Q5H005Q01 1.64 Q5H005Q01 mg l^-1

NO3(N) 166 0.02 Q5H005Q01 0.693 Q5H005Q01 1.248 Q5H005Q01 3.309 Q5H005Q01 mg l^-1

Sulphate 166 10.5 Q5H005Q01 41.1 Q5H005Q01 72.8 Q5H005Q01 213 Q5H005Q01 mg l^-1

Chloride 166 13.7 Q5H005Q01 30.3 Q5H005Q01 60.7 Q5H005Q01 230.9 Q5H005Q01 mg l^-1

Sodium 166 12.5 Q5H005Q01 60.4 Q5H005Q01 114.3 Q5H005Q01 331.3 Q5H005Q01 mg l^-1

Magnesium 166 6.3 Q5H005Q01 15.2 Q5H005Q01 22.5 Q5H005Q01 49.2 Q5H005Q01 mg l^-1

TDS 166 152 Q5H005Q01 385 Q5H005Q01 615 Q5H005Q01 1503 Q5H005Q01 mg l^-1

Conductivity 166 22.2 Q5H005Q01 51.9 Q5H005Q01 82 Q5H005Q01 199 Q5H005Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q50A n=166 Class 1: I(Na TDS EC)

(169) Catchment Q50B: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

Q5H006Q01 dam Elands Drift Dam on Great Fish River: Le none

Q5H004Q01 157 at Fonteins Hoek on Groot-Visrivier 83

Q50B - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(170) Catchment Q50C: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

Q6H002Q01 147 at Melrose on Baviaansrivier 84

Q5H004Q01 157 at Fonteins Hoek on Groot-Visrivier 85

Q50C - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(173) Catchment Q60C: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

Q6H003Q01 811 at Botmansgat De Klerkdal on Baviaansriv 86

Q6H002Q01 147 at Melrose on Baviaansrivier 87

Q60C - Stations used: 2, Samples selected: 160 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 160 7.63 Q6H003Q01 8.37 Q6H003Q01 8.56 Q6H003Q01 8.76 Q6H003Q01 -log [H⁺]

Fluoride 160 0.12 Q6H003Q01 0.51 Q6H003Q01 0.62 Q6H003Q01 0.74 Q6H003Q01 mg l^-1

NO3(N) 160 0.02 Q6H003Q01 0.055 Q6H003Q01 0.436 Q6H003Q01 1.108 Q6H003Q01 mg l^-1

Sulphate 160 3 Q6H003Q01 28.3 Q6H003Q01 40.9 Q6H003Q01 48.7 Q6H003Q01 mg l^-1

Chloride 160 11.3 Q6H003Q01 119.4 Q6H003Q01 162.7 Q6H003Q01 191.9 Q6H003Q01 mg l^-1

Sodium 160 11.3 Q6H003Q01 120.6 Q6H003Q01 160.1 Q6H003Q01 188.4 Q6H003Q01 mg l^-1

Magnesium 160 6.1 Q6H003Q01 34.2 Q6H003Q01 41.8 Q6H003Q01 52.9 Q6H003Q01 mg l^-1

TDS 160 141 Q6H003Q01 808 Q6H003Q01 960 Q6H003Q01 1158 Q6H003Q01 mg l^-1

Conductivity 160 21.3 Q6H003Q01 106.4 Q6H003Q01 123.8 Q6H003Q01 151 Q6H003Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q60C n=160 Class 1: I(Cl Na Mg TDS EC)

(174) Catchment Q70A: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

Q7H004Q01 1 at Cookhouse on Groot-Visrivier 88

Q7H003Q01 402 at Leeuwe Drift on Groot-Visrivier 89

Q70A - Stations used: 2, Samples selected: 85 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 85 7.99 Q7H003Q01 8.46 Q7H003Q01 8.62 Q7H003Q01 8.71 Q7H003Q01 -log [H⁺]

Fluoride 85 0.36 Q7H003Q01 0.65 Q7H003Q01 0.81 Q7H003Q01 0.98 Q7H003Q01 mg l^-1

NO3(N) 85 0.02 Q7H003Q01 1.148 Q7H003Q01 1.706 Q7H003Q01 2.962 Q7H003Q01 mg l^-1

Sulphate 85 35.6 Q7H003Q01 79.5 Q7H003Q01 120.8 Q7H003Q01 169.7 Q7H003Q01 mg l^-1

Chloride 85 32.6 Q7H003Q01 88 Q7H003Q01 142 Q7H003Q01 232.4 Q7H003Q01 mg l^-1

Sodium 85 47.1 Q7H003Q01 137 Q7H003Q01 200.3 Q7H003Q01 320.1 Q7H003Q01 mg l^-1

Magnesium 85 12 Q7H003Q01 25.1 Q7H003Q01 36.2 Q7H003Q01 47.9 Q7H003Q01 mg l^-1

TDS 85 300 Q7H003Q01 711 Q7H003Q01 1023 Q7H003Q01 1329 Q7H003Q01 mg l^-1

Conductivity 85 43.5 Q7H003Q01 93.8 Q7H003Q01 138 Q7H003Q01 181 Q7H003Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q70A n=85 Class 2: I(Cl Mg EC) II(Na TDS)

(175) Catchment Q70B: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

Q7H003Q01 402 at Leeuwe Drift on Groot-Visrivier 90

Q70B - Stations used: 1, Samples selected: 85 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 85 7.99 Q7H003Q01 8.46 Q7H003Q01 8.62 Q7H003Q01 8.71 Q7H003Q01 -log [H⁺]

Fluoride 85 0.36 Q7H003Q01 0.65 Q7H003Q01 0.81 Q7H003Q01 0.98 Q7H003Q01 mg l^-1

NO3(N) 85 0.02 Q7H003Q01 1.148 Q7H003Q01 1.706 Q7H003Q01 2.962 Q7H003Q01 mg l^-1

Sulphate 85 35.6 Q7H003Q01 79.5 Q7H003Q01 120.8 Q7H003Q01 169.7 Q7H003Q01 mg l^-1

Chloride 85 32.6 Q7H003Q01 88 Q7H003Q01 142 Q7H003Q01 232.4 Q7H003Q01 mg l^-1

Sodium 85 47.1 Q7H003Q01 137 Q7H003Q01 200.3 Q7H003Q01 320.1 Q7H003Q01 mg l^-1

Magnesium 85 12 Q7H003Q01 25.1 Q7H003Q01 36.2 Q7H003Q01 47.9 Q7H003Q01 mg l^-1

TDS 85 300 Q7H003Q01 711 Q7H003Q01 1023 Q7H003Q01 1329 Q7H003Q01 mg l^-1

Conductivity 85 43.5 Q7H003Q01 93.8 Q7H003Q01 138 Q7H003Q01 181 Q7H003Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q70B n=85 Class 2: I(Cl Mg EC) II(Na TDS)

(178) Catchment Q80B: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

Q8H010Q01 307 Little Fish River at Grootvlakte 91

Q8H004Q01 270 Little Fish River at Grootvlakte 92

Q80B - Stations used: 2, Samples selected: 94 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 94 7.66 Q8H010Q01 8.42 Q8H010Q01 8.63 Q8H010Q01 8.82 Q8H010Q01 -log [H⁺]

Fluoride 94 0.26 Q8H010Q01 0.57 Q8H010Q01 0.65 Q8H010Q01 0.75 Q8H010Q01 mg l^-1

NO3(N) 94 0.02 Q8H010Q01 0.055 Q8H010Q01 0.271 Q8H010Q01 2.342 Q8H010Q01 mg l^-1

Sulphate 94 17.4 Q8H010Q01 48.5 Q8H010Q01 62.6 Q8H010Q01 86.3 Q8H010Q01 mg l^-1

Chloride 94 14.9 Q8H010Q01 85.5 Q8H010Q01 116 Q8H010Q01 131.3 Q8H010Q01 mg l^-1

Sodium 94 18.9 Q8H010Q01 96.2 Q8H010Q01 117.4 Q8H010Q01 179 Q8H010Q01 mg l^-1

Magnesium 94 11.6 Q8H010Q01 43.9 Q8H010Q01 53.5 Q8H010Q01 64.1 Q8H010Q01 mg l^-1

TDS 94 245 Q8H010Q01 777 Q8H010Q01 878 Q8H010Q01 1033 Q8H010Q01 mg l^-1

Conductivity 94 33.1 Q8H010Q01 99.1 Q8H010Q01 110.7 Q8H010Q01 134 Q8H010Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q80B n=94 Class 1: I(Cl Na Mg TDS EC)

(179) Catchment Q80C: Total number of "H...Q" (flow gauging, quality) stations = 3.

Station total n
samples description map
code

Q8H010Q01 307 Little Fish River at Grootvlakte 93

Q8H004Q01 270 Little Fish River at Grootvlakte 94

Q8H005Q01 119 Little Fish River at Luns Klip 95

Q80C - Stations used: 3, Samples selected: 94 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 94 7.66 Q8H010Q01 8.42 Q8H010Q01 8.63 Q8H010Q01 8.82 Q8H010Q01 -log [H⁺]

Fluoride 94 0.26 Q8H010Q01 0.57 Q8H010Q01 0.65 Q8H010Q01 0.75 Q8H010Q01 mg l^-1

NO3(N) 94 0.02 Q8H010Q01 0.055 Q8H010Q01 0.271 Q8H010Q01 2.342 Q8H010Q01 mg l^-1

Sulphate 94 17.4 Q8H010Q01 48.5 Q8H010Q01 62.6 Q8H010Q01 86.3 Q8H010Q01 mg l^-1

Chloride 94 14.9 Q8H010Q01 85.5 Q8H010Q01 116 Q8H010Q01 131.3 Q8H010Q01 mg l^-1

Sodium 94 18.9 Q8H010Q01 96.2 Q8H010Q01 117.4 Q8H010Q01 179 Q8H010Q01 mg l^-1

Magnesium 94 11.6 Q8H010Q01 43.9 Q8H010Q01 53.5 Q8H010Q01 64.1 Q8H010Q01 mg l^-1

TDS 94 245 Q8H010Q01 777 Q8H010Q01 878 Q8H010Q01 1033 Q8H010Q01 mg l^-1

Conductivity 94 33.1 Q8H010Q01 99.1 Q8H010Q01 110.7 Q8H010Q01 134 Q8H010Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q80C n=94 Class 1: I(Cl Na Mg TDS EC)

(180) Catchment Q80D: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

Q8H002Q01 0 Little Fish River at Somerset East none

Q8H008Q01 1126 Little Fish River -Doorn Kraal 96

Q80D - Stations used: 2, Samples selected: 145 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 145 7.78 Q8H008Q01 8.42 Q8H008Q01 8.54 Q8H008Q01 8.75 Q8H008Q01 -log [H⁺]

Fluoride 145 0.22 Q8H008Q01 0.69 Q8H008Q01 0.81 Q8H008Q01 0.92 Q8H008Q01 mg l^-1

NO3(N) 145 0.02 Q8H008Q01 0.937 Q8H008Q01 1.676 Q8H008Q01 3.939 Q8H008Q01 mg l^-1

Sulphate 145 18.6 Q8H008Q01 74.5 Q8H008Q01 92.2 Q8H008Q01 108.2 Q8H008Q01 mg l^-1

Chloride 145 5 Q8H008Q01 127.4 Q8H008Q01 157.1 Q8H008Q01 178.8 Q8H008Q01 mg l^-1

Sodium 145 11.7 Q8H008Q01 167.1 Q8H008Q01 198.5 Q8H008Q01 218.9 Q8H008Q01 mg l^-1

Magnesium 145 7.9 Q8H008Q01 41.5 Q8H008Q01 48.9 Q8H008Q01 55.4 Q8H008Q01 mg l^-1

TDS 145 170 Q8H008Q01 965 Q8H008Q01 1115 Q8H008Q01 1235 Q8H008Q01 mg l^-1

Conductivity 145 22.5 Q8H008Q01 123.3 Q8H008Q01 151 Q8H008Q01 164 Q8H008Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q80D n=145 Class 2: I(Cl Na Mg) II(TDS EC)

(181) Catchment Q80E: Total number of "H...Q" (flow gauging, quality) stations = 3.

Station total n
samples description map
code

Q8H008Q01 1126 Little Fish River -Doorn Kraal 97

Q8H007Q01 canal Little Fish Canal to River at Nieuwe Gro none

Q8H013Q01 dam De Mistkraal Dam on Little Fish River: L none

Q80E - Stations used: 1, Samples selected: 145 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 145 7.78 Q8H008Q01 8.42 Q8H008Q01 8.54 Q8H008Q01 8.75 Q8H008Q01 -log [H⁺]

Fluoride 145 0.22 Q8H008Q01 0.69 Q8H008Q01 0.81 Q8H008Q01 0.92 Q8H008Q01 mg l^-1

NO3(N) 145 0.02 Q8H008Q01 0.937 Q8H008Q01 1.676 Q8H008Q01 3.939 Q8H008Q01 mg l^-1

Sulphate 145 18.6 Q8H008Q01 74.5 Q8H008Q01 92.2 Q8H008Q01 108.2 Q8H008Q01 mg l^-1

Chloride 145 5 Q8H008Q01 127.4 Q8H008Q01 157.1 Q8H008Q01 178.8 Q8H008Q01 mg l^-1

Sodium 145 11.7 Q8H008Q01 167.1 Q8H008Q01 198.5 Q8H008Q01 218.9 Q8H008Q01 mg l^-1

Magnesium 145 7.9 Q8H008Q01 41.5 Q8H008Q01 48.9 Q8H008Q01 55.4 Q8H008Q01 mg l^-1

TDS 145 170 Q8H008Q01 965 Q8H008Q01 1115 Q8H008Q01 1235 Q8H008Q01 mg l^-1

Conductivity 145 22.5 Q8H008Q01 123.3 Q8H008Q01 151 Q8H008Q01 164 Q8H008Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q80E n=145 Class 2: I(Cl Na Mg) II(TDS EC)

(183) Catchment Q80G: Total number of "H...Q" (flow gauging, quality) stations = 5.

Station total n
samples description map
code

Q8H013Q01 dam De Mistkraal Dam on Little Fish River: L none

Q8H006Q01 canal Little Fish Canal at Wellington-Grove none

Q8H009Q01 369 Little Fish River at Wellington-Grove Pu 98

Q8H011Q01 436 Little Fish River at Rietfontein-Junctio 99

Q7H005Q01 1267 at Sout Vleij Sheldon on Klein-Visrivier 100

Q80G - Stations used: 3, Samples selected: 194 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 194 7.52 Q8H011Q01 8.52 Q8H011Q01 8.68 Q7H005Q01 8.89 Q8H011Q01 -log [H⁺]

Fluoride 194 0.49 Q7H005Q01 0.88 Q7H005Q01 1.15 Q7H005Q01 1.86 Q8H011Q01 mg l^-1

NO3(N) 194 0.02 Q7H005Q01 0.862 Q7H005Q01 1.872 Q7H005Q01 2.521 Q7H005Q01 mg l^-1

Sulphate 194 26.2 Q8H011Q01 121 Q8H011Q01 166.3 Q7H005Q01 326.5 Q8H011Q01 mg l^-1

Chloride 194 23.8 Q8H011Q01 167.9 Q8H011Q01 252.1 Q8H011Q01 548 Q8H011Q01 mg l^-1

Sodium 194 45.5 Q8H011Q01 214.2 Q8H011Q01 298.6 Q8H011Q01 579.1 Q8H011Q01 mg l^-1

Magnesium 194 9.3 Q8H011Q01 31.9 Q7H005Q01 42.5 Q7H005Q01 59.8 Q8H011Q01 mg l^-1

TDS 194 285 Q8H011Q01 1045 Q7H005Q01 1344 Q7H005Q01 2306 Q8H011Q01 mg l^-1

Conductivity 194 41.1 Q8H011Q01 145 Q8H011Q01 193.2 Q8H011Q01 329 Q8H011Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q80G n=194 Class 2: I(F Mg) II(Cl Na TDS EC)

(185) Catchment Q91B: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

Q9H012Q01 1070 at Brandt Legte Piggots Bridge on Groot 101

Q91B - Stations used: 1, Samples selected: 92 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 92 6.88 Q9H012Q01 8.56 Q9H012Q01 8.82 Q9H012Q01 9.02 Q9H012Q01 -log [H⁺]

Fluoride 92 0.44 Q9H012Q01 0.87 Q9H012Q01 1.05 Q9H012Q01 1.24 Q9H012Q01 mg l^-1

NO3(N) 92 0.02 Q9H012Q01 0.823 Q9H012Q01 1.453 Q9H012Q01 2.938 Q9H012Q01 mg l^-1

Sulphate 92 32.7 Q9H012Q01 126.9 Q9H012Q01 163 Q9H012Q01 223 Q9H012Q01 mg l^-1

Chloride 92 46.7 Q9H012Q01 180 Q9H012Q01 241 Q9H012Q01 341.9 Q9H012Q01 mg l^-1

Sodium 92 62.3 Q9H012Q01 230.8 Q9H012Q01 296.4 Q9H012Q01 433.8 Q9H012Q01 mg l^-1

Magnesium 92 11.9 Q9H012Q01 34.3 Q9H012Q01 43.6 Q9H012Q01 61.5 Q9H012Q01 mg l^-1

TDS 92 359 Q9H012Q01 1063 Q9H012Q01 1293 Q9H012Q01 1807 Q9H012Q01 mg l^-1

Conductivity 92 51.2 Q9H012Q01 151 Q9H012Q01 183.6 Q9H012Q01 253 Q9H012Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q91B n=92 Class 2: I(F Mg) II(Cl Na TDS EC)

(186) Catchment Q91C: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

Q9H012Q01 1070 at Brandt Legte Piggots Bridge on Groot 102

Q9H001Q01 612 at Fort Brown Peninsula on Groot-Visrivi 103

Q91C - Stations used: 2, Samples selected: 186 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 186 6.67 Q9H001Q01 8.58 Q9H001Q01 8.87 Q9H012Q01 9.13 Q9H001Q01 -log [H⁺]

Fluoride 186 0.1 Q9H001Q01 0.86 Q9H001Q01 1.04 Q9H012Q01 1.24 Q9H012Q01 mg l^-1

NO3(N) 186 0.02 Q9H001Q01 0.671 Q9H001Q01 1.391 Q9H001Q01 3.943 Q9H001Q01 mg l^-1

Sulphate 186 3 Q9H001Q01 128 Q9H001Q01 163.8 Q9H012Q01 245.9 Q9H001Q01 mg l^-1

Chloride 186 11.6 Q9H001Q01 180.9 Q9H001Q01 238.7 Q9H001Q01 434.5 Q9H001Q01 mg l^-1

Sodium 186 6.3 Q9H001Q01 234 Q9H001Q01 294.3 Q9H001Q01 480.7 Q9H001Q01 mg l^-1

Magnesium 186 2.7 Q9H001Q01 34.3 Q9H012Q01 43.4 Q9H001Q01 61.5 Q9H012Q01 mg l^-1

TDS 186 55 Q9H001Q01 1060 Q9H001Q01 1272 Q9H012Q01 1925 Q9H001Q01 mg l^-1

Conductivity 186 9 Q9H001Q01 154 Q9H001Q01 182.4 Q9H001Q01 274 Q9H001Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q91C n=186 Class 2: I(F Mg) II(Cl Na TDS EC)

(187) Catchment Q92A: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

Q9H014Q01 191 Koonap River at Frisch Gewaagd-Groenkop 104

Q9H030Q01 146 Koonap River at Frisch Gewaagd-Groenkop 105

Q92A - Stations used: 2, Samples selected: 64 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 64 7.4 Q9H030Q01 8.13 Q9H030Q01 8.29 Q9H030Q01 8.41 Q9H030Q01 -log [H⁺]

Fluoride 64 0.1 Q9H030Q01 0.19 Q9H030Q01 0.24 Q9H030Q01 0.28 Q9H030Q01 mg l^-1

NO3(N) 64 0.02 Q9H030Q01 0.156 Q9H030Q01 0.866 Q9H030Q01 1.938 Q9H030Q01 mg l^-1

Sulphate 64 2 Q9H030Q01 6.4 Q9H030Q01 9.4 Q9H030Q01 33.3 Q9H030Q01 mg l^-1

Chloride 64 5 Q9H030Q01 16.8 Q9H030Q01 28.4 Q9H030Q01 35.1 Q9H030Q01 mg l^-1

Sodium 64 4.7 Q9H030Q01 16.9 Q9H030Q01 29 Q9H030Q01 38.6 Q9H030Q01 mg l^-1

Magnesium 64 2.2 Q9H030Q01 8.9 Q9H030Q01 17.1 Q9H030Q01 21.6 Q9H030Q01 mg l^-1

TDS 64 65 Q9H030Q01 205 Q9H030Q01 331 Q9H030Q01 405 Q9H030Q01 mg l^-1

Conductivity 64 8.6 Q9H030Q01 28.5 Q9H030Q01 44.7 Q9H030Q01 51.9 Q9H030Q01 mS m^-1

Summary of classification: Q92A n=64 Class 0

(188) Catchment Q92B: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

Q9H016Q01 343 Koonap River at Schurftekop 106

Q92B - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(189) Catchment Q92C: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

Q9H002Q01 476 Koonap River at Adelaide 107

Q92C - Stations used: 1, Samples selected: 71 between 2001-01-01 and 2005-12-31.

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

pH 71 7.54 Q9H002Q01 8.26 Q9H002Q01 8.44 Q9H002Q01 8.65 Q9H002Q01 -log [H⁺]

Fluoride 71 0.05 Q9H002Q01 0.34 Q9H002Q01 0.56 Q9H002Q01 0.88 Q9H002Q01 mg l^-1

NO3(N) 71 0.02 Q9H002Q01 0.04 Q9H002Q01 0.17 Q9H002Q01 3.667 Q9H002Q01 mg l^-1

Sulphate 71 3 Q9H002Q01 16.6 Q9H002Q01 31.2 Q9H002Q01 107.9 Q9H002Q01 mg l^-1

Chloride 71 12 Q9H002Q01 61.3 Q9H002Q01 150.7 Q9H002Q01 223.7 Q9H002Q01 mg l^-1

Sodium 71 13.5 Q9H002Q01 58 Q9H002Q01 135.5 Q9H002Q01 192.5 Q9H002Q01 mg l^-1

Magnesium 71 5.8 Q9H002Q01 20.7 Q9H002Q01 38.9 Q9H002Q01 44.9 Q9H002Q01 mg l^-1

TDS 71 125 Q9H002Q01 452 Q9H002Q01 886 Q9H002Q01 1023 Q9H002Q01 mg l^-1

Conductivity 71 19.5 Q9H002Q01 62.5 Q9H002Q01 117.6 Q9H002Q01 156 Q9H002Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q92C n=71 Class 1: I(Cl Na Mg TDS EC)

(191) Catchment Q92E: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

Q9H002Q01 476 Koonap River at Adelaide 108

Q92E - Stations used: 1, Samples selected: 71 between 2001-01-01 and 2005-12-31.

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

pH 71 7.54 Q9H002Q01 8.26 Q9H002Q01 8.44 Q9H002Q01 8.65 Q9H002Q01 -log [H⁺]

Fluoride 71 0.05 Q9H002Q01 0.34 Q9H002Q01 0.56 Q9H002Q01 0.88 Q9H002Q01 mg l^-1

NO3(N) 71 0.02 Q9H002Q01 0.04 Q9H002Q01 0.17 Q9H002Q01 3.667 Q9H002Q01 mg l^-1

Sulphate 71 3 Q9H002Q01 16.6 Q9H002Q01 31.2 Q9H002Q01 107.9 Q9H002Q01 mg l^-1

Chloride 71 12 Q9H002Q01 61.3 Q9H002Q01 150.7 Q9H002Q01 223.7 Q9H002Q01 mg l^-1

Sodium 71 13.5 Q9H002Q01 58 Q9H002Q01 135.5 Q9H002Q01 192.5 Q9H002Q01 mg l^-1

Magnesium 71 5.8 Q9H002Q01 20.7 Q9H002Q01 38.9 Q9H002Q01 44.9 Q9H002Q01 mg l^-1

TDS 71 125 Q9H002Q01 452 Q9H002Q01 886 Q9H002Q01 1023 Q9H002Q01 mg l^-1

Conductivity 71 19.5 Q9H002Q01 62.5 Q9H002Q01 117.6 Q9H002Q01 156 Q9H002Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q92E n=71 Class 1: I(Cl Na Mg TDS EC)

(195) Catchment Q93B: Total number of "H...Q" (flow gauging, quality) stations = 6.

Station total n
samples description map
code

Q9H031Q01 dam Tunnel Outlet to Glen Melville Dam-Glen none

Q9H023Q01 5 at Lot BC Rhodes 4 on Brak River Tributa 109

Q9H024Q01 6 at Lot Ag Rhodes 5 on Brak River Tributa 110

Q9H022Q01 4 at Lot BC Rhodes 3 on Brak River Tributa 111

Q9H020Q01 16 at Lot Bg Glen Dew on Brakrivier 112

Q9H021Q01 9 at Lot Be Rhodes 2 on Brakrivier 113

Q93B - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(196) Catchment Q93C: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

Q9H018Q01 1088 at Matomelas Reserve Outspan on Groot-V 114

Q93C - Stations used: 1, Samples selected: 108 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 108 7.95 Q9H018Q01 8.62 Q9H018Q01 8.83 Q9H018Q01 9.01 Q9H018Q01 -log [H⁺]

Fluoride 108 0.27 Q9H018Q01 0.79 Q9H018Q01 1 Q9H018Q01 1.26 Q9H018Q01 mg l^-1

NO3(N) 108 0.02 Q9H018Q01 0.339 Q9H018Q01 1.237 Q9H018Q01 1.672 Q9H018Q01 mg l^-1

Sulphate 108 22.1 Q9H018Q01 121.1 Q9H018Q01 164.1 Q9H018Q01 220.2 Q9H018Q01 mg l^-1

Chloride 108 18.7 Q9H018Q01 204.9 Q9H018Q01 277.8 Q9H018Q01 372 Q9H018Q01 mg l^-1

Sodium 108 32.6 Q9H018Q01 231.1 Q9H018Q01 304.4 Q9H018Q01 375.5 Q9H018Q01 mg l^-1

Magnesium 108 8.4 Q9H018Q01 35.2 Q9H018Q01 44.7 Q9H018Q01 56.3 Q9H018Q01 mg l^-1

TDS 108 281 Q9H018Q01 1045 Q9H018Q01 1288 Q9H018Q01 1507 Q9H018Q01 mg l^-1

Conductivity 108 38.4 Q9H018Q01 156 Q9H018Q01 189.2 Q9H018Q01 242 Q9H018Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q93C n=108 Class 2: I(Mg) II(Cl Na TDS EC)

(197) Catchment Q93D: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

Q9H018Q01 1088 at Matomelas Reserve Outspan on Groot-V 115

Q9H013Q01 91 Kap River at Kap River Mountains-Forest 116

Q93D - Stations used: 2, Samples selected: 108 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 108 7.95 Q9H018Q01 8.62 Q9H018Q01 8.83 Q9H018Q01 9.01 Q9H018Q01 -log [H⁺]

Fluoride 108 0.27 Q9H018Q01 0.79 Q9H018Q01 1 Q9H018Q01 1.26 Q9H018Q01 mg l^-1

NO3(N) 108 0.02 Q9H018Q01 0.339 Q9H018Q01 1.237 Q9H018Q01 1.672 Q9H018Q01 mg l^-1

Sulphate 108 22.1 Q9H018Q01 121.1 Q9H018Q01 164.1 Q9H018Q01 220.2 Q9H018Q01 mg l^-1

Chloride 108 18.7 Q9H018Q01 204.9 Q9H018Q01 277.8 Q9H018Q01 372 Q9H018Q01 mg l^-1

Sodium 108 32.6 Q9H018Q01 231.1 Q9H018Q01 304.4 Q9H018Q01 375.5 Q9H018Q01 mg l^-1

Magnesium 108 8.4 Q9H018Q01 35.2 Q9H018Q01 44.7 Q9H018Q01 56.3 Q9H018Q01 mg l^-1

TDS 108 281 Q9H018Q01 1045 Q9H018Q01 1288 Q9H018Q01 1507 Q9H018Q01 mg l^-1

Conductivity 108 38.4 Q9H018Q01 156 Q9H018Q01 189.2 Q9H018Q01 242 Q9H018Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q93D n=108 Class 2: I(Mg) II(Cl Na TDS EC)

(198) Catchment Q94A: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

Q9H028Q01 dam Kat River Dam Pipeline at Werltevreden none

Q9H026Q01 dam Kat River Dam on Kat River: Down Stream none

Q94A - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(199) Catchment Q94B: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

Q9H028Q01 dam Kat River Dam Pipeline at Werltevreden none

Q9H026Q01 dam Kat River Dam on Kat River: Down Stream none

Q94B - not classified: 0 samples between 2001-01-01 and 2005-12-31, 0 valid samples. Require at least 5.

(200) Catchment Q94C: Total number of "H...Q" (flow gauging, quality) stations = 1.

Station total n
samples description map
code

Q9H019Q01 672 at Grey Kirk on Balfour River 117

Q94C - Stations used: 1, Samples selected: 101 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 101 6.7 Q9H019Q01 7.82 Q9H019Q01 8.12 Q9H019Q01 8.37 Q9H019Q01 -log [H⁺]

Fluoride 101 0.05 Q9H019Q01 0.13 Q9H019Q01 0.17 Q9H019Q01 0.21 Q9H019Q01 mg l^-1

NO3(N) 101 0.04 Q9H019Q01 0.253 Q9H019Q01 0.435 Q9H019Q01 0.725 Q9H019Q01 mg l^-1

Sulphate 101 2 Q9H019Q01 5 Q9H019Q01 9.5 Q9H019Q01 17.8 Q9H019Q01 mg l^-1

Chloride 101 2.5 Q9H019Q01 12 Q9H019Q01 19.9 Q9H019Q01 25.3 Q9H019Q01 mg l^-1

Sodium 101 4.9 Q9H019Q01 10.2 Q9H019Q01 15.5 Q9H019Q01 20.9 Q9H019Q01 mg l^-1

Magnesium 101 2.2 Q9H019Q01 4.4 Q9H019Q01 7.2 Q9H019Q01 13.3 Q9H019Q01 mg l^-1

TDS 101 56 Q9H019Q01 104 Q9H019Q01 155 Q9H019Q01 200 Q9H019Q01 mg l^-1

Conductivity 101 8 Q9H019Q01 15.7 Q9H019Q01 22.8 Q9H019Q01 29.5 Q9H019Q01 mS m^-1

Summary of classification: Q94C n=101 Class 0

(202) Catchment Q94E: Total number of "H...Q" (flow gauging, quality) stations = 2.

Station total n
samples description map
code

Q9H017Q01 622 Blinkwater River at Blinkwater 118

Q9H008Q01 8 Kat River at Heald Town Fingo-Blinkwater 119

Q94E - Stations used: 2, Samples selected: 82 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 82 7.6 Q9H017Q01 8.31 Q9H017Q01 8.45 Q9H017Q01 8.78 Q9H017Q01 -log [H⁺]

Fluoride 82 0.1 Q9H017Q01 0.37 Q9H017Q01 0.43 Q9H017Q01 0.49 Q9H017Q01 mg l^-1

NO3(N) 82 0.02 Q9H017Q01 0.047 Q9H017Q01 0.159 Q9H017Q01 0.823 Q9H017Q01 mg l^-1

Sulphate 82 4.4 Q9H017Q01 25.8 Q9H017Q01 36.8 Q9H017Q01 45.6 Q9H017Q01 mg l^-1

Chloride 82 9.4 Q9H017Q01 79.5 Q9H017Q01 106.3 Q9H017Q01 131.5 Q9H017Q01 mg l^-1

Sodium 82 6.5 Q9H017Q01 88.9 Q9H017Q01 103.9 Q9H017Q01 120.6 Q9H017Q01 mg l^-1

Magnesium 82 2.1 Q9H017Q01 29.8 Q9H017Q01 36.2 Q9H017Q01 41.8 Q9H017Q01 mg l^-1

TDS 82 54 Q9H017Q01 646 Q9H017Q01 747 Q9H017Q01 832 Q9H017Q01 mg l^-1

Conductivity 82 8.5 Q9H017Q01 84.7 Q9H017Q01 96.1 Q9H017Q01 106.8 Q9H017Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q94E n=82 Class 1: I(Cl Na Mg TDS EC)

(203) Catchment Q94F: Total number of "H...Q" (flow gauging, quality) stations = 3.

Station total n
samples description map
code

Q9H017Q01 622 Blinkwater River at Blinkwater 120

Q9H008Q01 8 Kat River at Heald Town Fingo-Blinkwater 121

Q9H029Q01 234 Kat River at Fort Beaufort 122

Q94F - Stations used: 3, Samples selected: 163 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 163 6.96 Q9H029Q01 8.22 Q9H017Q01 8.44 Q9H017Q01 8.78 Q9H017Q01 -log [H⁺]

Fluoride 163 0.1 Q9H029Q01 0.34 Q9H017Q01 0.43 Q9H017Q01 0.55 Q9H029Q01 mg l^-1

NO3(N) 163 0.02 Q9H029Q01 0.16 Q9H017Q01 1.068 Q9H029Q01 2.645 Q9H029Q01 mg l^-1

Sulphate 163 3 Q9H029Q01 21.8 Q9H017Q01 34.6 Q9H017Q01 45.6 Q9H017Q01 mg l^-1

Chloride 163 9.4 Q9H017Q01 70.5 Q9H017Q01 113.8 Q9H017Q01 197.4 Q9H029Q01 mg l^-1

Sodium 163 6.5 Q9H017Q01 62.3 Q9H029Q01 101.8 Q9H017Q01 128.2 Q9H029Q01 mg l^-1

Magnesium 163 2.1 Q9H017Q01 18.7 Q9H029Q01 33.8 Q9H017Q01 41.8 Q9H017Q01 mg l^-1

TDS 163 54 Q9H017Q01 426 Q9H017Q01 712 Q9H017Q01 832 Q9H017Q01 mg l^-1

Conductivity 163 8.5 Q9H017Q01 62.5 Q9H029Q01 95 Q9H017Q01 107.7 Q9H029Q01 mS m^-1

Summary of classification (consituents in each range in brackets): Q94F n=163 Class 1: I(Cl Na Mg TDS EC)

Processing dam monitoring points:

(1) Checked Q1R001Q01 (Grassridge) for valid samples...
Number of samples found = 1: less than the 5 required, so not classified.

(2) Checked Q4R002Q01 (Kommandodrift) for valid samples...

Quaternary S31C, dam station: Q4R002Q01, Samples selected: 54 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 54 7.58 Q4R002Q01 8.23 Q4R002Q01 8.43 Q4R002Q01 8.64 Q4R002Q01 -log [H⁺]

Fluoride 54 0.27 Q4R002Q01 0.38 Q4R002Q01 0.45 Q4R002Q01 0.54 Q4R002Q01 mg l^-1

NO3(N) 54 0.02 Q4R002Q01 0.19 Q4R002Q01 0.537 Q4R002Q01 0.632 Q4R002Q01 mg l^-1

Sulphate 54 3 Q4R002Q01 17.4 Q4R002Q01 21.2 Q4R002Q01 25.3 Q4R002Q01 mg l^-1

Chloride 54 2.5 Q4R002Q01 21.1 Q4R002Q01 26 Q4R002Q01 30 Q4R002Q01 mg l^-1

Sodium 54 20.9 Q4R002Q01 30 Q4R002Q01 40.5 Q4R002Q01 48.6 Q4R002Q01 mg l^-1

Magnesium 54 8.3 Q4R002Q01 13 Q4R002Q01 15.1 Q4R002Q01 16.8 Q4R002Q01 mg l^-1

TDS 54 200 Q4R002Q01 312 Q4R002Q01 349 Q4R002Q01 408 Q4R002Q01 mg l^-1

Conductivity 54 30.2 Q4R002Q01 41.7 Q4R002Q01 45.8 Q4R002Q01 53.5 Q4R002Q01 mS m^-1

(3) Checked N1R001Q01 (Vanryneveldspas) for valid samples...

Quaternary S31C, dam station: N1R001Q01, Samples selected: 66 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 66 7.09 N1R001Q01 8.36 N1R001Q01 8.63 N1R001Q01 9.03 N1R001Q01 -log [H⁺]

Fluoride 66 0.34 N1R001Q01 0.53 N1R001Q01 0.75 N1R001Q01 1.3 N1R001Q01 mg l^-1

NO3(N) 66 0.02 N1R001Q01 0.055 N1R001Q01 0.302 N1R001Q01 0.761 N1R001Q01 mg l^-1

Sulphate 66 21.5 N1R001Q01 47.7 N1R001Q01 110.4 N1R001Q01 206 N1R001Q01 mg l^-1

Chloride 66 43.8 N1R001Q01 67 N1R001Q01 147.4 N1R001Q01 285 N1R001Q01 mg l^-1

Sodium 66 39.1 N1R001Q01 64.4 N1R001Q01 137.3 N1R001Q01 189.1 N1R001Q01 mg l^-1

Magnesium 66 18 N1R001Q01 26.4 N1R001Q01 44.9 N1R001Q01 60 N1R001Q01 mg l^-1

TDS 66 384 N1R001Q01 515 N1R001Q01 863 N1R001Q01 1167 N1R001Q01 mg l^-1

Conductivity 66 51.3 N1R001Q01 69.6 N1R001Q01 121.5 N1R001Q01 169 N1R001Q01 mS m^-1

(4) Checked Q4R001Q01 (Lake Arthur) for valid samples...
Number of samples found = 3: less than the 5 required, so not classified.

(5) Checked G5R001Q01 (De Hoop) for valid samples...

Quaternary S31C, dam station: G5R001Q01, Samples selected: 19 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 19 7.98 G5R001Q01 8.38 G5R001Q01 9.14 G5R001Q01 9.78 G5R001Q01 -log [H⁺]

Fluoride 19 0.57 G5R001Q01 0.74 G5R001Q01 1.02 G5R001Q01 1.16 G5R001Q01 mg l^-1

NO3(N) 19 0.02 G5R001Q01 0.02 G5R001Q01 0.058 G5R001Q01 0.095 G5R001Q01 mg l^-1

Sulphate 19 343.3 G5R001Q01 553.3 G5R001Q01 1326.6 G5R001Q01 1788.7 G5R001Q01 mg l^-1

Chloride 19 2267.3 G5R001Q01 4539.5 G5R001Q01 10747.6 G5R001Q01 16569.6 G5R001Q01 mg l^-1

Sodium 19 1267 G5R001Q01 2573 G5R001Q01 6359.5 G5R001Q01 9860.3 G5R001Q01 mg l^-1

Magnesium 19 175.1 G5R001Q01 316.6 G5R001Q01 686.6 G5R001Q01 1130.7 G5R001Q01 mg l^-1

TDS 19 4858 G5R001Q01 8887 G5R001Q01 19458 G5R001Q01 29910 G5R001Q01 mg l^-1

Conductivity 19 802 G5R001Q01 1410 G5R001Q01 2844 G5R001Q01 4600 G5R001Q01 mS m^-1

(6) Checked Q5R001Q01 (Elandsdrift) for valid samples...

Quaternary S31C, dam station: Q5R001Q01, Samples selected: 147 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 147 7.38 Q5R001Q01 8.35 Q5R001Q01 8.49 Q5R001Q01 8.77 Q5R001Q01 -log [H⁺]

Fluoride 147 0.31 Q5R001Q01 0.49 Q5R001Q01 0.65 Q5R001Q01 1.58 Q5R001Q01 mg l^-1

NO3(N) 147 0.02 Q5R001Q01 0.75 Q5R001Q01 1.169 Q5R001Q01 2.274 Q5R001Q01 mg l^-1

Sulphate 147 23.9 Q5R001Q01 48.7 Q5R001Q01 73.4 Q5R001Q01 184.9 Q5R001Q01 mg l^-1

Chloride 147 18.7 Q5R001Q01 35.9 Q5R001Q01 55.8 Q5R001Q01 144.6 Q5R001Q01 mg l^-1

Sodium 147 30.1 Q5R001Q01 71.7 Q5R001Q01 114 Q5R001Q01 310.9 Q5R001Q01 mg l^-1

Magnesium 147 10 Q5R001Q01 16.2 Q5R001Q01 21.9 Q5R001Q01 46.5 Q5R001Q01 mg l^-1

TDS 147 254 Q5R001Q01 439 Q5R001Q01 610 Q5R001Q01 1470 Q5R001Q01 mg l^-1

Conductivity 147 35.7 Q5R001Q01 58.4 Q5R001Q01 79 Q5R001Q01 186 Q5R001Q01 mS m^-1

(7) Checked Q9R001Q01 (Kat River) for valid samples...
Number of samples found = 4: less than the 5 required, so not classified.

(8) Checked N3R001Q01 (Blyderivier) for valid samples...
No data: not classified.

(9) Checked L3R001Q01 (Beervlei) for valid samples...

Quaternary S31C, dam station: L3R001Q01, Samples selected: 36 between 2001-01-01 and 2005-12-31.
[See summary of classification]

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

pH 36 5.58 L3R001Q01 8.19 L3R001Q01 8.78 L3R001Q01 9.27 L3R001Q01 -log [H⁺]

Fluoride 36 0.17 L3R001Q01 0.27 L3R001Q01 0.37 L3R001Q01 0.41 L3R001Q01 mg l^-1

NO3(N) 36 0.02 L3R001Q01 0.04 L3R001Q01 0.434 L3R001Q01 0.636 L3R001Q01 mg l^-1

Sulphate 36 59.8 L3R001Q01 156.3 L3R001Q01 505.6 L3R001Q01 625.1 L3R001Q01 mg l^-1

Chloride 36 82.1 L3R001Q01 329.7 L3R001Q01 1292.6 L3R001Q01 1690.9 L3R001Q01 mg l^-1

Sodium 36 68.6 L3R001Q01 222.7 L3R001Q01 752 L3R001Q01 1063.9 L3R001Q01 mg l^-1

Magnesium 36 11.8 L3R001Q01 32.4 L3R001Q01 117.9 L3R001Q01 179.8 L3R001Q01 mg l^-1

TDS 36 370 L3R001Q01 958 L3R001Q01 3016 L3R001Q01 3829 L3R001Q01 mg l^-1

Conductivity 36 57.8 L3R001Q01 165 L3R001Q01 499 L3R001Q01 634 L3R001Q01 mS m^-1

(10) Checked N2R001Q01 (Darlington) for valid samples...

Quaternary S31C, dam station: N2R001Q01, Samples selected: 84 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 84 7.81 N2R001Q01 8.51 N2R001Q01 8.66 N2R001Q01 8.78 N2R001Q01 -log [H⁺]

Fluoride 84 0.49 N2R001Q01 0.61 N2R001Q01 0.67 N2R001Q01 0.74 N2R001Q01 mg l^-1

NO3(N) 84 0.02 N2R001Q01 0.09 N2R001Q01 0.275 N2R001Q01 0.895 N2R001Q01 mg l^-1

Sulphate 84 42.2 N2R001Q01 60.8 N2R001Q01 81.5 N2R001Q01 97.2 N2R001Q01 mg l^-1

Chloride 84 47 N2R001Q01 69.1 N2R001Q01 104.6 N2R001Q01 147.8 N2R001Q01 mg l^-1

Sodium 84 75.9 N2R001Q01 106.9 N2R001Q01 128.3 N2R001Q01 159.1 N2R001Q01 mg l^-1

Magnesium 84 16.1 N2R001Q01 20.5 N2R001Q01 24.2 N2R001Q01 26.5 N2R001Q01 mg l^-1

TDS 84 475 N2R001Q01 579 N2R001Q01 689 N2R001Q01 763 N2R001Q01 mg l^-1

Conductivity 84 64.2 N2R001Q01 78.3 N2R001Q01 94.8 N2R001Q01 104.2 N2R001Q01 mS m^-1

(11) Checked P1R003Q01 (New Years) for valid samples...

Quaternary S31C, dam station: P1R003Q01, Samples selected: 85 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 85 6.72 P1R003Q01 7.88 P1R003Q01 8.05 P1R003Q01 8.23 P1R003Q01 -log [H⁺]

Fluoride 85 0.05 P1R003Q01 0.24 P1R003Q01 0.29 P1R003Q01 0.9 P1R003Q01 mg l^-1

NO3(N) 85 0.02 P1R003Q01 0.056 P1R003Q01 0.24 P1R003Q01 0.822 P1R003Q01 mg l^-1

Sulphate 85 11.9 P1R003Q01 31.8 P1R003Q01 42.1 P1R003Q01 211.9 P1R003Q01 mg l^-1

Chloride 85 49.9 P1R003Q01 158.5 P1R003Q01 213 P1R003Q01 1025.5 P1R003Q01 mg l^-1

Sodium 85 29.4 P1R003Q01 91.5 P1R003Q01 120.7 P1R003Q01 654.2 P1R003Q01 mg l^-1

Magnesium 85 4.8 P1R003Q01 15.1 P1R003Q01 21 P1R003Q01 118.2 P1R003Q01 mg l^-1

TDS 85 139 P1R003Q01 428 P1R003Q01 559 P1R003Q01 2647 P1R003Q01 mg l^-1

Conductivity 85 26.1 P1R003Q01 72.7 P1R003Q01 95.4 P1R003Q01 437 P1R003Q01 mS m^-1

(12) Checked P1R002Q01 (Milner) for valid samples...
Number of samples found = 0: less than the 5 required, so not classified.

(13) Checked P1R001Q01 (Jameson) for valid samples...
Number of samples found = 0: less than the 5 required, so not classified.

(14) Checked N4R001Q01 (Slagboom) for valid samples...
Number of samples found = 0: less than the 5 required, so not classified.

(15) Checked P3R001Q01 (Howisons Poort) for valid samples...
Number of samples found = 0: less than the 5 required, so not classified.

(16) Checked P3R002Q01 (Settlers) for valid samples...
Number of samples found = 0: less than the 5 required, so not classified.

(17) Checked L8R001Q01 (Kouga) for valid samples...

Quaternary S31C, dam station: L8R001Q01, Samples selected: 69 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 69 6.55 L8R001Q01 7.28 L8R001Q01 7.59 L8R001Q01 7.92 L8R001Q01 -log [H⁺]

Fluoride 69 0.05 L8R001Q01 0.1 L8R001Q01 0.14 L8R001Q01 0.17 L8R001Q01 mg l^-1

NO3(N) 69 0.02 L8R001Q01 0.093 L8R001Q01 0.258 L8R001Q01 0.4 L8R001Q01 mg l^-1

Sulphate 69 2 L8R001Q01 8.1 L8R001Q01 12.2 L8R001Q01 13.9 L8R001Q01 mg l^-1

Chloride 69 30 L8R001Q01 42.4 L8R001Q01 45.8 L8R001Q01 52.3 L8R001Q01 mg l^-1

Sodium 69 17.6 L8R001Q01 23 L8R001Q01 26.3 L8R001Q01 28.9 L8R001Q01 mg l^-1

Magnesium 69 0.5 L8R001Q01 4.2 L8R001Q01 4.5 L8R001Q01 5.7 L8R001Q01 mg l^-1

TDS 69 85 L8R001Q01 105 L8R001Q01 113 L8R001Q01 137 L8R001Q01 mg l^-1

Conductivity 69 19.1 L8R001Q01 21.7 L8R001Q01 23.4 L8R001Q01 27.3 L8R001Q01 mS m^-1

(18) Checked M1R001Q01 (Groendal) for valid samples...

Quaternary S31C, dam station: M1R001Q01, Samples selected: 58 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 58 6.03 M1R001Q01 6.78 M1R001Q01 7.29 M1R001Q01 8.14 M1R001Q01 -log [H⁺]

Fluoride 58 0.05 M1R001Q01 0.1 M1R001Q01 0.14 M1R001Q01 0.64 M1R001Q01 mg l^-1

NO3(N) 58 0.02 M1R001Q01 0.055 M1R001Q01 0.15 M1R001Q01 0.227 M1R001Q01 mg l^-1

Sulphate 58 2 M1R001Q01 8.4 M1R001Q01 12.3 M1R001Q01 15.7 M1R001Q01 mg l^-1

Chloride 58 33 M1R001Q01 39.2 M1R001Q01 42.5 M1R001Q01 46.5 M1R001Q01 mg l^-1

Sodium 58 15.6 M1R001Q01 21.8 M1R001Q01 25.4 M1R001Q01 27.9 M1R001Q01 mg l^-1

Magnesium 58 1.7 M1R001Q01 3.2 M1R001Q01 3.4 M1R001Q01 4 M1R001Q01 mg l^-1

TDS 58 72 M1R001Q01 86 M1R001Q01 100 M1R001Q01 130 M1R001Q01 mg l^-1

Conductivity 58 16.3 M1R001Q01 18.5 M1R001Q01 19.9 M1R001Q01 23.4 M1R001Q01 mS m^-1

(19) Checked M1R002Q01 (Bulk River) for valid samples...
No data: not classified.

(20) Checked L9R001Q01 (Loerie) for valid samples...

Quaternary S31C, dam station: L9R001Q01, Samples selected: 84 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 84 6.25 L9R001Q01 7.35 L9R001Q01 7.76 L9R001Q01 8.5 L9R001Q01 -log [H⁺]

Fluoride 84 0.05 L9R001Q01 0.1 L9R001Q01 0.16 L9R001Q01 0.64 L9R001Q01 mg l^-1

NO3(N) 84 0.02 L9R001Q01 0.133 L9R001Q01 0.233 L9R001Q01 0.859 L9R001Q01 mg l^-1

Sulphate 84 2 L9R001Q01 10.7 L9R001Q01 16.8 L9R001Q01 30.1 L9R001Q01 mg l^-1

Chloride 84 39.9 L9R001Q01 52.9 L9R001Q01 64.8 L9R001Q01 80.6 L9R001Q01 mg l^-1

Sodium 84 20 L9R001Q01 28.3 L9R001Q01 36.3 L9R001Q01 43.3 L9R001Q01 mg l^-1

Magnesium 84 3.4 L9R001Q01 5 L9R001Q01 6 L9R001Q01 7.9 L9R001Q01 mg l^-1

TDS 84 100 L9R001Q01 129 L9R001Q01 153 L9R001Q01 185 L9R001Q01 mg l^-1

Conductivity 84 21.3 L9R001Q01 25.6 L9R001Q01 30.6 L9R001Q01 33.9 L9R001Q01 mS m^-1

(21) Checked M2R001Q01 (Van Stadens - Upper) for valid samples...
No data: not classified.

(22) Checked K9R001Q01 (Krom River) for valid samples...
Number of samples found = 0: less than the 5 required, so not classified.

(23) Checked K9R002Q01 (Impofu) for valid samples...
Number of samples found = 0: less than the 5 required, so 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

Q4R002Q01 54 0

N1R001Q01 66 1 Cl Na Mg TDS EC

G5R001Q01 19 3 pH F SO4 Cl Na Mg TDS EC

Q5R001Q01 147 1 Na TDS EC

L3R001Q01 36 3 SO4 Cl Na Mg TDS EC

N2R001Q01 84 1 Cl Na TDS EC

P1R003Q01 85 2 Na TDS EC Cl

L8R001Q01 69 0

M1R001Q01 58 0

L9R001Q01 84 0

Finished calculations for Fish to Tsitsikamma WMA at 2006-12-18 - 16:42:30

[Chemical index page] [IWQS home page]

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	85	7.1	N2H009Q01	8.49	N2H009Q01	8.67	N2H009Q01	8.82	N2H009Q01	-log [H⁺]
Fluoride	85	0.41	N2H009Q01	0.58	N2H009Q01	0.75	N2H009Q01	1.33	N2H009Q01	mg l^-1
NO3(N)	85	0.02	N2H009Q01	0.608	N2H009Q01	0.903	N2H009Q01	1.16	N2H009Q01	mg l^-1
Sulphate	85	31.8	N2H009Q01	59.8	N2H009Q01	97.2	N2H009Q01	173	N2H009Q01	mg l^-1
Chloride	85	28.3	N2H009Q01	60.2	N2H009Q01	116.5	N2H009Q01	218.3	N2H009Q01	mg l^-1
Sodium	85	57.7	N2H009Q01	101.1	N2H009Q01	158.5	N2H009Q01	237.5	N2H009Q01	mg l^-1
Magnesium	85	10.5	N2H009Q01	20.1	N2H009Q01	29.1	N2H009Q01	46.9	N2H009Q01	mg l^-1
TDS	85	378	N2H009Q01	563	N2H009Q01	823	N2H009Q01	1248	N2H009Q01	mg l^-1
Conductivity	85	51.4	N2H009Q01	76.4	N2H009Q01	106.2	N2H009Q01	181	N2H009Q01	mS m^-1

Station	total n samples	description	map code
N2H009Q01	973	Volkers Skoenmakers River at Volkersri	45
N2H011Q01	dam	Darlington Dam on Sundays River: Left CA	none
N2H010Q01	dam	Darlington Dam on Sundays River: Left CA	none

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	25	7.91	N2H002Q01	8.26	N2H002Q01	8.4	N2H002Q01	8.56	N2H002Q01	-log [H⁺]
Fluoride	25	0.33	N2H002Q01	0.56	N2H002Q01	0.73	N2H002Q01	0.81	N2H002Q01	mg l^-1
NO3(N)	25	0.02	N2H002Q01	0.04	N2H002Q01	1.013	N2H002Q01	2.112	N2H002Q01	mg l^-1
Sulphate	25	18.4	N2H002Q01	218.4	N2H002Q01	540.4	N2H002Q01	630.9	N2H002Q01	mg l^-1
Chloride	25	46.6	N2H002Q01	540.5	N2H002Q01	1276.3	N2H002Q01	1691.8	N2H002Q01	mg l^-1
Sodium	25	35.9	N2H002Q01	350.5	N2H002Q01	731.4	N2H002Q01	921.4	N2H002Q01	mg l^-1
Magnesium	25	6.8	N2H002Q01	59.7	N2H002Q01	145.7	N2H002Q01	177.2	N2H002Q01	mg l^-1
TDS	25	223	N2H002Q01	1544	N2H002Q01	3250	N2H002Q01	3924	N2H002Q01	mg l^-1
Conductivity	25	36.4	N2H002Q01	266	N2H002Q01	529	N2H002Q01	627	N2H002Q01	mS m^-1

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	9	7.95	N3H002Q01	8.2	N3H002Q01	8.55	N3H002Q01	8.56	N3H002Q01	-log [H⁺]
Fluoride	9	0.38	N3H002Q01	0.48	N3H002Q01	0.63	N3H002Q01	0.68	N3H002Q01	mg l^-1
NO3(N)	9	0.02	N3H002Q01	0.297	N3H002Q01	0.746	N3H002Q01	1.38	N3H002Q01	mg l^-1
Sulphate	9	9.7	N3H002Q01	50.1	N3H002Q01	76.2	N3H002Q01	82.9	N3H002Q01	mg l^-1
Chloride	9	11.6	N3H002Q01	60.1	N3H002Q01	227.7	N3H002Q01	273.1	N3H002Q01	mg l^-1
Sodium	9	16.5	N3H002Q01	74.8	N3H002Q01	154.1	N3H002Q01	177.6	N3H002Q01	mg l^-1
Magnesium	9	5.9	N3H002Q01	16.8	N3H002Q01	24	N3H002Q01	34	N3H002Q01	mg l^-1
TDS	9	199	N3H002Q01	443	N3H002Q01	781	N3H002Q01	846	N3H002Q01	mg l^-1
Conductivity	9	27.8	N3H002Q01	60.8	N3H002Q01	122.9	N3H002Q01	143	N3H002Q01	mS m^-1

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	39	7.37	N4H001Q01	8.38	N4H001Q01	8.48	N4H001Q01	8.66	N4H001Q01	-log [H⁺]
Fluoride	39	0.26	N4H001Q01	0.6	N4H001Q01	0.67	N4H001Q01	0.68	N4H001Q01	mg l^-1
NO3(N)	39	0.02	N4H001Q01	0.093	N4H001Q01	0.218	N4H001Q01	0.492	N4H001Q01	mg l^-1
Sulphate	39	28.7	N4H001Q01	59.3	N4H001Q01	72.2	N4H001Q01	92.4	N4H001Q01	mg l^-1
Chloride	39	41	N4H001Q01	68.3	N4H001Q01	106.6	N4H001Q01	116.5	N4H001Q01	mg l^-1
Sodium	39	33.2	N4H001Q01	103.6	N4H001Q01	125.3	N4H001Q01	156.8	N4H001Q01	mg l^-1
Magnesium	39	6.2	N4H001Q01	20.5	N4H001Q01	22.5	N4H001Q01	26.6	N4H001Q01	mg l^-1
TDS	39	188	N4H001Q01	576	N4H001Q01	648	N4H001Q01	752	N4H001Q01	mg l^-1
Conductivity	39	29.7	N4H001Q01	77.9	N4H001Q01	93	N4H001Q01	98.8	N4H001Q01	mS m^-1

Station	total n samples	description	map code
N4H006Q01	canal	Canal From Sundays River at Korhaanspoor	none
N4H001Q01	426	Sundays River at Korhaanspoort-Courans D	50

Station	total n samples	description	map code
N4H002Q01	155	Sundays Riv at Strathsomers Estate-Cleve	51
N4H004Q01	42	Sundays Riv at Landdrost Veeplaats-Dunbr	52

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	83	8.03	N4H005Q01	8.36	N4H005Q01	8.48	N4H005Q01	8.6	N4H005Q01	-log [H⁺]
Fluoride	83	0.13	N4H005Q01	1.18	N4H005Q01	1.39	N4H005Q01	1.45	N4H005Q01	mg l^-1
NO3(N)	83	0.02	N4H005Q01	1.61	N4H005Q01	2.641	N4H005Q01	3.258	N4H005Q01	mg l^-1
Sulphate	83	72.7	N4H005Q01	581.8	N4H005Q01	699	N4H005Q01	836.8	N4H005Q01	mg l^-1
Chloride	83	264.4	N4H005Q01	2009.2	N4H005Q01	2348.8	N4H005Q01	2867.4	N4H005Q01	mg l^-1
Sodium	83	168.9	N4H005Q01	1413	N4H005Q01	1603.1	N4H005Q01	1717.5	N4H005Q01	mg l^-1
Magnesium	83	20.6	N4H005Q01	161.2	N4H005Q01	186	N4H005Q01	227.4	N4H005Q01	mg l^-1
TDS	83	663	N4H005Q01	4989	N4H005Q01	5628	N4H005Q01	5923	N4H005Q01	mg l^-1
Conductivity	83	109	N4H005Q01	775	N4H005Q01	880.4	N4H005Q01	947	N4H005Q01	mS m^-1

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	84	7.38	P1H003Q01	8.45	P1H003Q01	8.64	P1H003Q01	8.77	P1H003Q01	-log [H⁺]
Fluoride	84	0.1	P1H003Q01	0.86	P1H003Q01	0.97	P1H003Q01	1.1	P1H003Q01	mg l^-1
NO3(N)	84	0.02	P1H003Q01	0.055	P1H003Q01	0.223	P1H003Q01	0.448	P1H003Q01	mg l^-1
Sulphate	84	22.8	P1H003Q01	185.9	P1H003Q01	227.7	P1H003Q01	571.2	P1H003Q01	mg l^-1
Chloride	84	98.8	P1H003Q01	938.5	P1H003Q01	1244.1	P1H003Q01	1645.3	P1H003Q01	mg l^-1
Sodium	84	65.9	P1H003Q01	606	P1H003Q01	759.8	P1H003Q01	938	P1H003Q01	mg l^-1
Magnesium	84	9.3	P1H003Q01	110.8	P1H003Q01	150.6	P1H003Q01	164.3	P1H003Q01	mg l^-1
TDS	84	274	P1H003Q01	2396	P1H003Q01	2986	P1H003Q01	3655	P1H003Q01	mg l^-1
Conductivity	84	50.4	P1H003Q01	393	P1H003Q01	488.8	P1H003Q01	605	P1H003Q01	mS m^-1

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	83	7.73	P3H001Q01	8.15	P3H001Q01	8.34	P3H001Q01	8.69	P3H001Q01	-log [H⁺]
Fluoride	83	0.16	P3H001Q01	0.29	P3H001Q01	0.35	P3H001Q01	0.37	P3H001Q01	mg l^-1
NO3(N)	83	0.02	P3H001Q01	0.924	P3H001Q01	3.934	P3H001Q01	9.363	P3H001Q01	mg l^-1
Sulphate	83	14.9	P3H001Q01	126.6	P3H001Q01	162.6	P3H001Q01	253.6	P3H001Q01	mg l^-1
Chloride	83	360.4	P3H001Q01	1686.1	P3H001Q01	1895.9	P3H001Q01	2101.4	P3H001Q01	mg l^-1
Sodium	83	178.4	P3H001Q01	823.4	P3H001Q01	922.2	P3H001Q01	981.3	P3H001Q01	mg l^-1
Magnesium	83	33.7	P3H001Q01	150.5	P3H001Q01	163.9	P3H001Q01	190.4	P3H001Q01	mg l^-1
TDS	83	781	P3H001Q01	3345	P3H001Q01	3676	P3H001Q01	3936	P3H001Q01	mg l^-1
Conductivity	83	127	P3H001Q01	569	P3H001Q01	632.4	P3H001Q01	681	P3H001Q01	mS m^-1

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	67	7.96	P4H001Q01	8.37	P4H001Q01	8.48	P4H001Q01	8.69	P4H001Q01	-log [H⁺]
Fluoride	67	0.22	P4H001Q01	0.34	P4H001Q01	0.37	P4H001Q01	0.45	P4H001Q01	mg l^-1
NO3(N)	67	0.02	P4H001Q01	0.055	P4H001Q01	1.007	P4H001Q01	2.129	P4H001Q01	mg l^-1
Sulphate	67	56.3	P4H001Q01	126.2	P4H001Q01	173.9	P4H001Q01	661	P4H001Q01	mg l^-1
Chloride	67	296.7	P4H001Q01	1050.2	P4H001Q01	1406.9	P4H001Q01	2002.1	P4H001Q01	mg l^-1
Sodium	67	185.2	P4H001Q01	563.1	P4H001Q01	736.4	P4H001Q01	1016.7	P4H001Q01	mg l^-1
Magnesium	67	28.1	P4H001Q01	102.6	P4H001Q01	140.5	P4H001Q01	210.1	P4H001Q01	mg l^-1
TDS	67	769	P4H001Q01	2253	P4H001Q01	2909	P4H001Q01	3999	P4H001Q01	mg l^-1
Conductivity	67	137	P4H001Q01	388	P4H001Q01	493	P4H001Q01	689	P4H001Q01	mS m^-1

Station	total n samples	description	map code
P4H001Q01	496	Kowie River at Bathurst-Wolfscrag	64
Q9H011Q01	coord error	Drainage region error for Kat River at Harringay-Upsher: Secondary=P4 but station=Q9	!
Q9H011Q01	coord error	Kat River at Harringay-Upsher	none

Station	total n samples	description	map code
Q1H014Q01	tunnel	Teebus Canal From Oviston Tunnel Outlet	none
Q1H012Q01	1042	Teebus River at Jan Blaauws Kop-Beaconsf	66

Station	total n samples	description	map code
Q1H020Q01	dam	Grassridge Dam on Great Brak River: Righ	none
Q1H022Q01	dam	Grassridge Dam on Great Brak Riv: River	none

Station	total n samples	description	map code
Q1H001Q01	736	at Katkop on Groot-Visrivier	68
Q1H017Q01	canal	Canal Right From Great Fish River at K	none
Q3H004Q01	563	Pauls River at Coutzenburg	69

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	57	7.28	Q3H004Q01	8.44	Q3H004Q01	8.59	Q3H004Q01	8.82	Q3H004Q01	-log [H⁺]
Fluoride	57	0.28	Q3H004Q01	1.08	Q3H004Q01	1.22	Q3H004Q01	1.32	Q3H004Q01	mg l^-1
NO3(N)	57	0.02	Q3H004Q01	2.279	Q3H004Q01	3.025	Q3H004Q01	3.354	Q3H004Q01	mg l^-1
Sulphate	57	20	Q3H004Q01	94.3	Q3H004Q01	111.7	Q3H004Q01	152.3	Q3H004Q01	mg l^-1
Chloride	57	15.1	Q3H004Q01	72.2	Q3H004Q01	89.8	Q3H004Q01	119.1	Q3H004Q01	mg l^-1
Sodium	57	28.3	Q3H004Q01	201.3	Q3H004Q01	231.6	Q3H004Q01	246.9	Q3H004Q01	mg l^-1
Magnesium	57	9.4	Q3H004Q01	35.1	Q3H004Q01	38.7	Q3H004Q01	47.7	Q3H004Q01	mg l^-1
TDS	57	220	Q3H004Q01	1067	Q3H004Q01	1162	Q3H004Q01	1246	Q3H004Q01	mg l^-1
Conductivity	57	31.8	Q3H004Q01	126.8	Q3H004Q01	148.3	Q3H004Q01	164	Q3H004Q01	mS m^-1

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	6	8.13	Q1H013Q01	8.44	Q1H013Q01	10.13	Q1H013Q01	10.38	Q1H013Q01	-log [H⁺]
Fluoride	6	0.17	Q1H013Q01	0.57	Q1H013Q01	0.79	Q1H013Q01	0.88	Q1H013Q01	mg l^-1
NO3(N)	6	0.02	Q1H013Q01	0.02	Q1H013Q01	1.37	Q1H013Q01	2.907	Q1H013Q01	mg l^-1
Sulphate	6	21.4	Q1H013Q01	29.7	Q1H013Q01	78.3	Q1H013Q01	83.9	Q1H013Q01	mg l^-1
Chloride	6	13.4	Q1H013Q01	24.8	Q1H013Q01	97.4	Q1H013Q01	119.9	Q1H013Q01	mg l^-1
Sodium	6	17.9	Q1H013Q01	101	Q1H013Q01	149.4	Q1H013Q01	155.5	Q1H013Q01	mg l^-1
Magnesium	6	7	Q1H013Q01	16.7	Q1H013Q01	29.9	Q1H013Q01	35.8	Q1H013Q01	mg l^-1
TDS	6	192	Q1H013Q01	447	Q1H013Q01	713	Q1H013Q01	851	Q1H013Q01	mg l^-1
Conductivity	6	27.6	Q1H013Q01	69	Q1H013Q01	96.5	Q1H013Q01	105.2	Q1H013Q01	mS m^-1

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	163	7.44	Q2H002Q01	8.44	Q2H002Q01	8.58	Q2H002Q01	8.79	Q2H002Q01	-log [H⁺]
Fluoride	163	0.19	Q2H002Q01	0.89	Q2H002Q01	0.97	Q2H002Q01	1.25	Q2H002Q01	mg l^-1
NO3(N)	163	0.02	Q2H002Q01	2.611	Q2H002Q01	3.617	Q2H002Q01	4.343	Q2H002Q01	mg l^-1
Sulphate	163	7.5	Q2H002Q01	36.6	Q2H002Q01	45.7	Q2H002Q01	63.8	Q2H002Q01	mg l^-1
Chloride	163	8.4	Q2H002Q01	31.7	Q2H002Q01	41.4	Q2H002Q01	174.3	Q2H002Q01	mg l^-1
Sodium	163	15.1	Q2H002Q01	159.8	Q2H002Q01	174.8	Q2H002Q01	193.4	Q2H002Q01	mg l^-1
Magnesium	163	8.1	Q2H002Q01	35.6	Q2H002Q01	39.9	Q2H002Q01	42.8	Q2H002Q01	mg l^-1
TDS	163	205	Q2H002Q01	954	Q2H002Q01	1016	Q2H002Q01	1143	Q2H002Q01	mg l^-1
Conductivity	163	28.1	Q2H002Q01	106.4	Q2H002Q01	112	Q2H002Q01	117.2	Q2H002Q01	mS m^-1

Station	total n samples	description	map code
Q3H004Q01	563	Pauls River at Coutzenburg	74
Q3H005Q01	1222	at Rietfontyn Waaikraal on Groot-Visrivi	75

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	151	7.17	Q3H005Q01	8.29	Q3H005Q01	8.55	Q3H004Q01	8.82	Q3H004Q01	-log [H⁺]
Fluoride	151	0.1	Q3H005Q01	0.41	Q3H005Q01	1.19	Q3H004Q01	1.49	Q3H005Q01	mg l^-1
NO3(N)	151	0.02	Q3H005Q01	0.715	Q3H005Q01	2.718	Q3H004Q01	3.354	Q3H004Q01	mg l^-1
Sulphate	151	15.7	Q3H005Q01	36.5	Q3H005Q01	104.5	Q3H004Q01	169.6	Q3H005Q01	mg l^-1
Chloride	151	10.5	Q3H005Q01	26.5	Q3H005Q01	83.8	Q3H005Q01	145.5	Q3H005Q01	mg l^-1
Sodium	151	18.4	Q3H005Q01	55.8	Q3H005Q01	222.6	Q3H004Q01	315.1	Q3H005Q01	mg l^-1
Magnesium	151	7.6	Q3H005Q01	18.1	Q3H005Q01	37.9	Q3H004Q01	54.7	Q3H005Q01	mg l^-1
TDS	151	201	Q3H005Q01	397	Q3H004Q01	1142	Q3H004Q01	1445	Q3H005Q01	mg l^-1
Conductivity	151	27.9	Q3H005Q01	54	Q3H005Q01	142.9	Q3H004Q01	186	Q3H005Q01	mS m^-1

Station	total n samples	description	map code
Q4H002Q01	0	Vlekpoort River at Roberts Kraal	none
Q4H003Q01	315	Vlekpoort River at Roberts Kraal	79

Station	total n samples	description	map code
Q4H005Q01	792	Tarka River at Bridge Farm-Tarka Bridge	80
Q4H013Q01	382	Tarka River at Bridge Farm-Tarka Bridge	81

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	93	7.67	Q4H013Q01	8.42	Q4H013Q01	8.53	Q4H013Q01	8.77	Q4H013Q01	-log [H⁺]
Fluoride	93	0.34	Q4H013Q01	1.77	Q4H013Q01	1.94	Q4H013Q01	2.11	Q4H013Q01	mg l^-1
NO3(N)	93	0.02	Q4H013Q01	2.798	Q4H013Q01	3.257	Q4H013Q01	3.487	Q4H013Q01	mg l^-1
Sulphate	93	26.9	Q4H013Q01	280.2	Q4H013Q01	346	Q4H013Q01	375.6	Q4H013Q01	mg l^-1
Chloride	93	65	Q4H013Q01	288.9	Q4H013Q01	364.8	Q4H013Q01	419.2	Q4H013Q01	mg l^-1
Sodium	93	63.2	Q4H013Q01	440.6	Q4H013Q01	494.1	Q4H013Q01	535.5	Q4H013Q01	mg l^-1
Magnesium	93	13.8	Q4H013Q01	67.3	Q4H013Q01	76.7	Q4H013Q01	91.4	Q4H013Q01	mg l^-1
TDS	93	411	Q4H013Q01	1950	Q4H013Q01	2145	Q4H013Q01	2327	Q4H013Q01	mg l^-1
Conductivity	93	57.9	Q4H013Q01	263	Q4H013Q01	285	Q4H013Q01	304	Q4H013Q01	mS m^-1

Station	total n samples	description	map code
Q5H005Q01	916	at Van Stadensdam Mortimer Weir on Groot	82
Q5H006Q01	dam	Elands Drift Dam on Great Fish River: Le	none

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	166	7.22	Q5H005Q01	8.28	Q5H005Q01	8.46	Q5H005Q01	8.85	Q5H005Q01	-log [H⁺]
Fluoride	166	0.1	Q5H005Q01	0.43	Q5H005Q01	0.68	Q5H005Q01	1.64	Q5H005Q01	mg l^-1
NO3(N)	166	0.02	Q5H005Q01	0.693	Q5H005Q01	1.248	Q5H005Q01	3.309	Q5H005Q01	mg l^-1
Sulphate	166	10.5	Q5H005Q01	41.1	Q5H005Q01	72.8	Q5H005Q01	213	Q5H005Q01	mg l^-1
Chloride	166	13.7	Q5H005Q01	30.3	Q5H005Q01	60.7	Q5H005Q01	230.9	Q5H005Q01	mg l^-1
Sodium	166	12.5	Q5H005Q01	60.4	Q5H005Q01	114.3	Q5H005Q01	331.3	Q5H005Q01	mg l^-1
Magnesium	166	6.3	Q5H005Q01	15.2	Q5H005Q01	22.5	Q5H005Q01	49.2	Q5H005Q01	mg l^-1
TDS	166	152	Q5H005Q01	385	Q5H005Q01	615	Q5H005Q01	1503	Q5H005Q01	mg l^-1
Conductivity	166	22.2	Q5H005Q01	51.9	Q5H005Q01	82	Q5H005Q01	199	Q5H005Q01	mS m^-1

Station	total n samples	description	map code
Q6H002Q01	147	at Melrose on Baviaansrivier	84
Q5H004Q01	157	at Fonteins Hoek on Groot-Visrivier	85

Station	total n samples	description	map code
Q6H003Q01	811	at Botmansgat De Klerkdal on Baviaansriv	86
Q6H002Q01	147	at Melrose on Baviaansrivier	87

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	160	7.63	Q6H003Q01	8.37	Q6H003Q01	8.56	Q6H003Q01	8.76	Q6H003Q01	-log [H⁺]
Fluoride	160	0.12	Q6H003Q01	0.51	Q6H003Q01	0.62	Q6H003Q01	0.74	Q6H003Q01	mg l^-1
NO3(N)	160	0.02	Q6H003Q01	0.055	Q6H003Q01	0.436	Q6H003Q01	1.108	Q6H003Q01	mg l^-1
Sulphate	160	3	Q6H003Q01	28.3	Q6H003Q01	40.9	Q6H003Q01	48.7	Q6H003Q01	mg l^-1
Chloride	160	11.3	Q6H003Q01	119.4	Q6H003Q01	162.7	Q6H003Q01	191.9	Q6H003Q01	mg l^-1
Sodium	160	11.3	Q6H003Q01	120.6	Q6H003Q01	160.1	Q6H003Q01	188.4	Q6H003Q01	mg l^-1
Magnesium	160	6.1	Q6H003Q01	34.2	Q6H003Q01	41.8	Q6H003Q01	52.9	Q6H003Q01	mg l^-1
TDS	160	141	Q6H003Q01	808	Q6H003Q01	960	Q6H003Q01	1158	Q6H003Q01	mg l^-1
Conductivity	160	21.3	Q6H003Q01	106.4	Q6H003Q01	123.8	Q6H003Q01	151	Q6H003Q01	mS m^-1

Station	total n samples	description	map code
Q7H004Q01	1	at Cookhouse on Groot-Visrivier	88
Q7H003Q01	402	at Leeuwe Drift on Groot-Visrivier	89

Variable	n samples	Minimum	recorded at	Median	recorded at	90th percentile	recorded at	Maximum	recorded at	unit
pH	85	7.99	Q7H003Q01	8.46	Q7H003Q01	8.62	Q7H003Q01	8.71	Q7H003Q01	-log [H⁺]
Fluoride	85	0.36	Q7H003Q01	0.65	Q7H003Q01	0.81	Q7H003Q01	0.98	Q7H003Q01	mg l^-1
NO3(N)	85	0.02	Q7H003Q01	1.148	Q7H003Q01	1.706	Q7H003Q01	2.962	Q7H003Q01	mg l^-1
Sulphate	85	35.6	Q7H003Q01	79.5	Q7H003Q01	120.8	Q7H003Q01	169.7	Q7H003Q01	mg l^-1
Chloride	85	32.6	Q7H003Q01	88	Q7H003Q01	142	Q7H003Q01	232.4	Q7H003Q01	mg l^-1
Sodium	85	47.1	Q7H003Q01	137	Q7H003Q01	200.3	Q7H003Q01	320.1	Q7H003Q01	mg l^-1
Magnesium	85	12	Q7H003Q01	25.1	Q7H003Q01	36.2	Q7H003Q01	47.9	Q7H003Q01	mg l^-1
TDS	85	300	Q7H003Q01	711	Q7H003Q01	1023	Q7H003Q01	1329	Q7H003Q01	mg l^-1
Conductivity	85	43.5	Q7H003Q01	93.8	Q7H003Q01	138	Q7H003Q01	181	Q7H003Q01	mS m^-1