STAATSKOERANT, 17 JULIE 2015 No. 39001 21
DEPARTMENT OF WATER AND SANITATION NO. 610 17 JULY 2015
610 National Water Act (36/1998): Proposed Classes And Resource Quality Objectives Of Water Resources For Catchments Of The Upper Vaal 39001
DEPARTMENT OF WATER AND SANITATION
NATIONAL WATER ACT, 1998 (ACT NO.36 OF 1998)
PROPOSED CLASSES AND RESOURCE QUALITY OBJECTIVES OF WATER RESOURCES FOR CATCHMENTS OF THE UPPER VAAL
I, Nomvula Paula Mokonyane, in my capacity as Minister of Water and Sanitation, and duly authorised in terms of section 13(4) of the National Water Act (Act No. 36 of 1998) hereby publishes for public comment the proposed classes of water resources and resource quality objectives for catchments ofof thethe UpperUpper Vaal,Vaal, inin thethe Schedule,Schedule, to to be be issued issued under under section section 13(4) 13(4) of of the National Water Act (No. 36 of 1998).
Any person who wishes to submit written comments with regard to the proposed classes and resource quality objectives should submit the comments within 60 days from the date of publication of this Notice to:
Director: Water Resource Classification Attention: Ms Shane Naidoo Department of Water and Sanitation Zwamadaka Building 185 Francis Baard Street Private Bag X313 Pretoria 0001
E -mail: naidooshane(a naidooshanedwa.qov.za dwa.Qov.za Facsimile: 012 336 6712
MRS NP OKONYANE MINISTER OF WATER AND SANITATION DATE: 0 \- f) ç-- _5
This gazette is also available free online at www.gpwonline.co.za 22 No. 39001 GOVERNMENT GAZETTE, 17 JULY 2015
SCHEDULE
PROPOSED CLASSES AND RESOURCE QUALITY OBJECTIVES OF WATER RESOURCES FOR CATCHMENTS OF THE UPPER VAAL IN TERMS OF SECTION 13(1)(A) AND (B) OF THE NATIONAL WATER ACT (ACT NO.36 OF 1998)
1. DESCRIPTION OF WATER RESOURCE
1.The proposed classes and resource quality objectives are determined for all or part of every significant water resource within the catchments of the Upper Vaal as set out below:
Water Management Area: Vaal Drainage Region: C Primary Drainage Region River(s): Vaal and Wilge River Systems
2. The Minister has, in terms of section 12 of the National Water Act (Act No 36 of 1998), prescribed a system for classifying water resources by promulgating Regulation 810, Government Gazette 33541 dated 17 September 2010. In terms of section 13(1) of the Act the Minister must, as soon as reasonably practicable after the Minister has prescribed a system for classifying water resources and subject to subsection (4), by notice in the Gazette, determine for all or part of every significant water resource, a class in accordance with the prescribed classification system.system.
3.The Minister, in terms of section 13(1)(a) of the Act, proposes to determine the following classes of each significant water resource for catchments of the Upper Vaal.
4.4.The Minister, in terms of section 13(1)(b) of the Act, proposes to determine the following resource quality objectives for each significant water resource for catchment of the Upper Vaal.
This gazette is also available free online at www.gpwonline.co.za STAATSKOERANT, 17 JULIE 2015 No. 39001 23
2.DETERMINATION OF THE CLASS OF WATER RESOURCES AND RESOURCE QUALITY OBJECTIVES IN TERMS OF SECTION 13(1)(A) AND (B) OF THE NATIONAL WATER ACT (ACT(ACT NO.36NO.36 OFOF 1998)1998)
1. A summary of the water resource classes for Integrated Units of Analysis (Figure 1) and ecological categories for the Upper Vaal is set out in Table 1.
2. Integrated Units of Analysis (IUA) are classified in terms of their extent of permissible utilization and protection as either Class I:indicating high environmental protection and minimal utilization; or Class II indicating moderate protection and moderate utilization; and Class Ill indicating sustainable minimal protection and high utilization.
3. Resource Quality Objectives (RQO)(ROO) are defined for each prioritised resource unit (RU) or hydrological node (Figure 2 and Table 2) for every IUA in terms of water quantity, quality, habitat and biota as shown in Tables 3 -9 respectively.
4. Where specified, the ecological category or Recommended Ecological Category (REC) means the assigned ecological condition by the Minister to a water resource that reflects the ecological condition of that water resource in terms of the deviation of its biophysical components from a predevelopment condition.
5. RQO are applicable from 1 April 2016.
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This gazette is also available free online at www.gpwonline.co.za STAATSKOERANT, 17 JULIE 2015 No. 39001 25
Ui,tu1,1 UL2vi.2 s EWR11UH
UA2 ( UA.6 EWRIRE UE.S EWR3
UF.1 UC3UC3.4
CuC1.3UC33 UB .6 UDS. UD.1 ÛD4UD6 UC3.2 UC-2.7-11C3.1UC27 U3.1
EWR8e".... UC1.5 UO3UD.3 & Ç1.6 ,... UCL4UC1.4 UC1.3UC13~-. UD 2 úC24.. -`...: _ ...:_
Lp*nd
CAN C BapiroacYlUOa:
Figure 2: Resource Units (Hydro Nodes) in the Upper Vaal
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No. 3900 1 Table 1: Water Resource Classes perper IntegratedIntegrated UnitUnit ofof AnaAnalysis and Eco ogical Categories per Biophysical Node ysis and Eco of AnalysisIntegrated (IUA)Integrated Unit Unit ResourceClassResource for WaterWater BiophysicalNode Name QuaternaryCatchmentQuaternary Major River NameName Tributary Name ogical Categories perAeakmzArea Biophysical (km2 ) NodeGross t (millionNatural m3 MAR/a) PresentPresent CategoryEcolRecommended This gazette isalsoavailable freeonlineat www.gpwonline.co.za Grootdraai Dam upstreamVaal of River Il UA.4UA.3UA.2UA.1 C11EC11BC11A VaalRietspruit Skulpspruit rh 1073746215197 41.7369.3312.0313.27 B/C C CB (UA) UA.5 C11D Vaal KleinRietspruit Vaal 533 41.66 C/D C/D GO
1331 VERNMENT GAZETTE,17 JULY 2015 UA.9UA.8UA.7UA.6 C11KC11HC11G Vaal LeeuspruitKaalspruitBlesbokspruitDrinkwaterspruit 1084340355 70.6666.0718.0718.62 B/CC/D C C/DB/CC/D C Klip River (Free State) (UB) II EWRIRE EWR1 UB.2UB.1 C13CC11JC11C Vaal KlipKlein Vaal 4984837318 88 288.826.095.67 54 B/C CB B/C BC UB.6UB.5UB.4UB.3 C13EC13BC13AC13D KlipVaal KomandospruitSandspruitSandapruitKlip (Grootdraai) 11391090603595 78.8451.3768.0433.6 B/C C Recommended CBC EWR6UB.9UB.8UB.7 C13DC13HC13GC13F VaalKlip KlipSpruitsonderdrif (Grootdraai) 41291583435589 248.0595.3119.2220.8 Stateogical B/CC/D C C/DB/C C Upper Wilge River (UC1) Il UC1.4ÚC1.3UC1.2UC1.1 C81MC81LC81B WilgeVaal MeulMaulWilge 1831 364932591 104.0326.4981.1169.03 CB CB Il ÚC2.1EWR7UC1.6UC1.5 C81AC82BC82A VaalWilge WilgeCornelisCornelius 170812156 23.4739.637.82 A/B C Ecol A/B C tributariesWilge River (UC2) and ÚC2.4UC2.3ÚC2.2 C81GC81JC81GC81F WilgeElandsVaal VaalbanksspruitKlerkspruitElands 1405435392115 114.7622.135.85 12 C/D CB C/D CB EWR8ÚC2.7ÚC2.6UC2.5 C82CC82DC81EC81C WilgeVaalWilgeNuwejaarspruit WilgeRusNuwejaarspruitFraserlModder -se- spruit 7503572527250 474.2539.8718.4119.6 B/C C B/C C upstreamVaal of River II UA.2UA.1 C11BC11A Vaal Vaal 1073197 69.3313.27 B/C C Category CB Grootdraai Dam (UA) UA.5UA.4UA.3 C11C11E D VaalRietspruit KleinRietspruitSkulpspruit Vaal 1331 533746215 41.6641,7312.03 C/D C C/D C UA.9UA.8UA.7UA.6 C11KC11HC11G Vaal Vaal LeeuspruitKaalspruitBlesbokspruitDrinkwaterspruit 1084340355 70.6666.0718.0718.62 B/CC/D C B/CC/D C Klip River (Free II EWRIRE EWR1 UB.1 C13CC11CC11J Vaal Vaal KlipKlein Vaal 4984318 88 288.826.095.67 B/C BC B/C BC State) (UB) UB.5UB.4UB.3UB.2 C13BC13AC13DC13C Vaal KlipVaal SandspruitKlip (Grootdraai) 11391090595837 78.8451.3768.04 54 B/C CC CB UB.9UB.8UB.7UB.6 ClC13GC13FC13E 3H Vaal KlipVaal KlipSpruitsonderdrifKomandospruit (Grootdraai) 4129435589603 248.0519.2220.833.6 C/DB/C C C/D CB Upper Wilge River II UC1.1EWR6 C81BCl 3D Vaal Vaal WilgeKlip 1583591 69.0395.31 B/C B B/C B (UC1) UC1.5UC1.4UC1.3UC1.2 C81MC82AC81LC81B Vaal Wilge CorneliusMeulWilge 1831 156364932 104.0326.4981.11 CB CCB II UC2.1EWR7ÚC1.6 C81AC82B Vaal Wilge WilgeCornelis 170812 23.4739.637.82 A/B C A/B C tributariesWilge River (UC2) and UC2.4UC2.3UC2.2 C81JC81GC81F Vaal WilgeElands VaalbanksspruitKlerkspruitElands 1405435392115 114.7622.135.85 12 C/D CB C/D CB EWRBUC2.7UC2.6UC2.5 C82CC82DC81EC81C WilgeVaalWilgeNuwejaarspruit WilgeRusNuwejaarspruitFraser -se- /Modder spruit 7503572527250 474.2539.8718.4119.6 B/C C B/C CC
of Analysisof Analysis (IUA)Integrated (IUA) Unit ResourceClass for Water NodeBiophysical Name QuaternaryCatchment Major River Name Tributary Name Catchment Gross Natural MAR 3 EcologicalPresent EcologicalRecommended Lower Wilge River IUA II UC3.2UC3 1 C82G Wilge WilgeHolspruit Tub Area (km2) 729152 (million m !a) 6.3432.9 State B/C C Category B/C C This gazette isalsoavailable freeonlineat www.gpwonline.co.za (UC3) UC3.4UC3 3 C82HC82F VaalWilge Grootspruit 10633 296 591.3911.08 C/D C C/D C RiverLiebenbergsvlei (UD) III Node Name UD.3UD.2UD.1 QuaternaryCatchment C83EC83DC83A LiebenbergsvleiMajor River Name TierkloofTierkloofWilge Tributary Name Catchment Gross 465891375 23.3112.4214.36 C C UD.4 C83G Liebenbergsvlei tributaryUnnamed 139 Natural MAR 4.74 Present B/C B STAATSKOERANT, (UE)Waterval River Ill UE.2UE.1UD.5 C12FC12DC83H VaalLiebenbergsvlei Watervaltributary Area (km2) 69597076 (million m3 /a) 80.3759.332.66 B/C DC CDB UE.5UE.4UE.3 C12GC12F VaalWaterval WatervaltributaryUnnamed 27872278 41 177.67149.84 2.12 DC CD II UF.1 C83K Wilge 546 25 7 C C 1 SkulpspruitKromspruit (UF) and UF.2 C83L Vaal VaalFS)KlipKromspruit Dam from (flows into 765 35.59 Ecological C C 7 JULIE2015 VaalGrootdraai Dam (UG) Dam to River from Il UG.3UG.2UG.1 C11MC12KC12A Vaal VenterspruitMolspruitBrakspruit 479485 75 3.36 2221 C C EWR3EWR2UG.4 C12HC11MC12J Vaal Bankplaasspruit 156387995344 852.13457.6812.43 C C SuikerbosrandKlipRiver (UH) River III Il EWR9UH.1UI.1 C22CC21CC21A KlipVaal River SuikerbosrandRietspruitSuikerbosrand 1175857707 31.3128.6536.6 State B/C EC EcologicalRecommended BIC DB (Gauteng) (UI) EWR10 UI.4UI.3UI2 C21GC22EC22DC22J Vaal RietspruitKlip River 32712309926893 86.9796.9839.21221 C/DD/E E C/D D Taaibosspruit (UJ) III EWR11 UKUJ 11 C23BC22GC21F VaalSuikerbosrand TaaibosspruitBlesbokspruitSuikerbosrand 1098831 29.1414.318.4 CD CD spruitKromelmboog- (UK) Vaal ruitKromelmboogsp 724 Category No. 3900
Lower Wilge River 1
27 II UC3.1 C82G Wilge Holspruit 729 32.9 C C Liebenbergsvlei(UC3) UC3.4UC3.3UC3.2 C82GC821-1C82F VaalWilge WilgeWilgeGrootspruit Trib 10633 296152 591.3911.086.34 C/DB/C C C/DB/C C River (UD) III UD.3UD.2UD.1 C83EC83DC83A Liebenbergsvlei UnnamedTierkloof 891465375 23.3112.4214.36 C C UE.1UD.5UD.4 C83GC12DC83H Liebenbergsvlei tributaryUnnamed 13976 2.664.74 B/C C CB (UE)Waterval River Ill UE.3UE.2 C12F WatervalVaal tributaryWatervalUnnamed 970695 41 80.3759.332.12 CD CD Kromspruit and II UF.1UE.5UE.4 C12GC83KC12F WilgeVaal WatervalKlipKromspruitWaterval into 27872278546 177.67149.8425.7 CD CD VaalSkulpspruit (UF) River from II UG.1UF.2 C11MC83L Vaal VaalBrakspruitFS) Dam from (flows 765 75 35.593.36 C C VaalGrootdraai Dam (UG) Dam to EWR2UG.4UG.3UG.2 C11MC12JC12KC12A Vaal VenterspruitBankplaasspruitMolspruit 7995344479485 457.6812.43 2221 C C SuikerbosrandRiver (UH) III Il EWR9EWR3Uli.1UI.1 C21CC21AC12H Vaal SuikerbosrandSuikerbosrand 156381175707 852.1331.3128.65 B/C C B/C BC (Gauteng)Klip (UI) River UI.4UI.3UI.2 C22EC22DC22CC22J VaalKlip River KlipRietspruit River 2309926893857 96.9839.2122.136.6 D/E E D TaaibosspruitKromelmboog- (UJ) Ill EWR11EWR10 UJ.1 C22GC21GC21F VaalSuikerbosrand TaaibosspruitBlesbokspruitSuikerbosrandRietspruit 32711098831 29.1486.9718.4 C/D D C/D D spruit (UK) III UK.1 C23B Vaal Kromelmboogsp ruit 724 14.3 C C 28
No. 3900 1 Water of Analysis (IUA)(WA)Integrated Unit ResourceClass for NodeBiophysical Name QuaternaryCatchment Major River Name Tributary Name Gross ( ) (millionNatural m3 MAR/a) Present Recommended Mooi River (UL) IUA Ill UL 1 C23F Vaal Mooi River Area (km') 1324 37 69 Stateog'cal C;D E Cateogoical g ry CID D This gazette isalsoavailable freeonlineat www.gpwonline.co.za EWR2RE UL.4UL.3UL.2 C23GC23LC23KC23E VaalMooiMooi MooiLoopspruitMooirivierloop 553513241360890 132.2137.6920.2625.96 DE DD Vaal River reach III Node Name EWR4 Quaternary C22F Vaal 38638 1977.26 C BIC GO C23Lfrom Vaal(UM) Dam to EWR5 C23L Vaal 49739 2288.01 C/D C VERNMENT GAZETTE,17 JULY 2015 Catchment Major River Name Tributary Name Area (km') Gross ( (millionNatural m3 MAR/a) Present Recommended Mooi River (UL) III UL.2UL.1 C23EC23F MooiVaal MooirivierloopMooi River 13601324 25.9637.69 State C/D E ggory ry CID D Vaal River reach EWR2RE UL.4UL.3 C23GC23LC23K VaalMooi MooiLoopspruit 55351324890 132.2137.6920.26 DE D from Vaal Dam to C23L (UM) III EWR5EWR4 C23LC22F Vaal 4973938638 2288.011977.26 C/D C B/C C STAATSKOERANT, 17 JULIE 2015 No. 39001 29
Table 2: Prioritised Resource Units (RU) delineated for the Upper Vaal
IUA Name RU River Name Nodre
1 UA.1 VaalVaal 2 UA.2 VaalVaal 3 EWR1RE VaalVaal 4 UA.3 Rietspruit 5 UA.4 Vaal UA. Vaal River upstream of Grootdraai Dam 6 UA.5 VaalVaal 7 UA.6 Vaal 8 EWR1 VaalVaal 9 UA.7 Vaal 1010 UA.8 Vaal 1111 UA.9 Vaal 1212 UB.1 Vaal 13 UB.2 Vaal 1414 UB.3 Vaal 1515 EWR6 Vaal 1616 UB.4 Klip UB. Klip River (Free State) 1717 UB.5 Klip 18 UB.6 Klip 1919 UB.7 Vaal 20 UB.8 Klip 21 UB.9 Vaal 22 EWR7 Vaal 23 UC1.1 Vaal 24 UC1.2 Vaal UC1. Upper Wilge River 25 UC1.3ÚC1.3 Wilge 26 UC1.4 Wilge 27 UC1.5 Wilge 28 UC1.6 Wilge 29 ÚC2.1UC2.1 Vaal 30 UC2.2 Elands 31 UC2.3 32 UC2.4 Wilge UC2. Wilge River and tributaries 33 UC2.5 Nuwejaarspruit 34 ÚC2.6UC2.6 Wilge 35 EWR8 Vaal 36 UC2.7 Wilge 37 UC3.1 Wilge 38 UC3.2 Wilge UC3. Lower Wilge River 39 UC3.3 Wilge 40 UC3.4ÚC3.4 Vaal 41 UD.1 Liebenbergsvlei 42 UD.2 Liebenbergsvlei UD. Liebenbergsvlei River 43 UD.3 Liebenbergsvlei 44 UD.4 Liebenbergsvlei 45 UD.5 Liebenbergsvlei 46 UE.1 Vaal 47 UE.2 Vaal UE. Waterval River 48 UE.3 Waterval 49 UE.4 Vaal 50 UE.5 Vaal 51 UF.1 Wilge UF. Kromspruit and Skulpspruit 52 UF.2 Vaal 53 EWR2 Vaal 54 UG.1 Vaal 55 UG.2 Vaal UG. Vaal River from Grootdraai Dam to Vaal Dam 56 EWR3 Vaal 57 UG.3 Vaal 58 UG.4 Vaal
This gazette is also available free online at www.gpwonline.co.za 30 No. 39001 GOVERNMENT GAZETTE, 17 JULY 2015
Hydro WAIUA Name RU River Name Node Hydro WAIUA Name RU River Name Node UH.UH SuikerbosrandSuikerbosrand River 59 UH.1 Vaal 60 EWR9 Suikerbosrand 61 EWR10 Blesbokspruit 62 EWR11 Blesbokspruit 63 UI.1 NatalSpruit 64 UL2UI.2Klip UI. Klip River (Gauteng) 65 UI.3 Klip 66 UI.4 Riet UJ. Taaibosspruit 67 UJ.1 Vaal UK. Kromelmboogspruit 68 UK.1 Vaal 69 UL.1 Vaal 70 EWR2RE Vaal 71 UL.2UL.2Mooi UL. Mooi River 71 72 UL.3UL.3Mooi 73 UL.4UL.4 Vaal 74 EWR4EWR4Vaal UM. Vaal River reach from Vaal Dam to C23L 75 EWR5EWR5 Vaal
This gazette is also available free online at www.gpwonline.co.za Table 3: Resource Quality Objectives for RIVER WATER QUANTITY in priority RUs in the Upper Vaal tUAIUA Class River tit!RU Node Node REC CoComponent ìpot t Cotapo Sub ent. .`" RQD I Indicator/ measure törlmea ura Maintenance low flows (m3 /s) (Percentile) NtNumerical Limits adCaúLhrdls ical Limits (Percentile)flowsDrought (m3 /s) This gazette isalsoavailable freeonlineat www.gpwonline.co.za needLow flows to be andEWR drought maintenance flows: low NovOct 43.72.9 (70)j50) 50 0.220.2 (99) (99) UA IlII VaalVaal RU8 EWR1 B/C(B)B/C(B) Quantity Low Flows forconditioninmaintained a the health y RECVMARVaal =BEWR1 = /C332.3x10 category in C11J °m3 MarFebJanDec 5.24.3 (50) (50) 0.2650.280.25 (99) (99) andecosystem for score(equivalent a 70- toco fication AprMay 2.633.7 (40) (50)(30) 0.030.080.04 (90)(99) STAATSKOERANT, needusers to be s 70 -80)' AugSepJulJun 2.62.42.5 (50) 0.160.15 (99) Low flows OctMaintenance low flows (m3 /s) (Percentile) 0.310 (40) 0.000(Percentile)flowsDrought (m3 /s)
at this site Nov 0.358 (40) 0.000 1 themaintainmaintainedimproveneed FEPA to to JanDec 0.4010.366 (40) 0.000 7 JULIE2015 UB II Vaal RU21 UB.9 C/D Quantity Low Flows ecosystem.importantthisstatus of 39.776xKlipEWRand indrought formaintenance B13H, 106m3 C category, flows: VMAR low = AprMarFeb 0,1990.3410.594 (50)(40) 0.000 toLow be flows JunMay 0.0540.102 (50) 0.000 category.inaCimproved a healthy to AugSepJul 0.0920.0710.077 (50)(40) 0.0000.015 (99) flowsDrought (m3 /s) UC2 II Vaal RU35 EWR8 C Quantity Low Flows tomaintainedneedLow support flows to be WilgeandEWR drought maintenanceEWRB flows: in C86 low NovOctMaintenance low flows (m3 /s) (Percentile) 0.0830.053 (99) 0.2360.011(Percentile) (99) ecosystemthecondition RECVMAR =C = category* 474.3x10 m3, C, JanMarFebDec 1.251.41.1(60)0.97 (60) (60) 0.4220.3550.3160.274 (99) (99) No. 3900 1
for the 31 ecosystem and for EWR maintenance low users. and drought flows: Vaal EWR1 in Cl 1J VMAR = 332.3x106m3 REC =B /C category (equivalent to EcoClassification Maintenance low flows (m3 /s) (Percentile) Drought score 70 -80)* flows (m3 /s) DecNovOct 4 (50)3.72.9 (70)(50) 0.250.220.2(Percentile) (99) (99) MarFebJan 33.75.24.3 (40) (30)(50) 0.080.040.2650.26 (99) (99) AugAprJulJunMay 2.42.52.6 (50) 0.150.03 (99)(90) Low flows: Sep 2.6 (50) 0.16 (99) UB Il Vaal RU21 UB.9 C/D Quantity Low Flows Low flows at this site need to improve to maintain the FEPA status of this important ecosystem. Low flows to be improved to aC EWR maintenance low category. and drought flows: EWR for C category, Klip in B13H, VMAR = Maintenance low flows (m3 /s) (Percentile) Drought 39.776x106m 3 flows (m3 /s) DecNovOct 0.3660.3580.310 (40) 0.000(Percentile) MarFebJan 0.3410.5940.401 (40) 0.000 AprJunMay 0.0540.1020.199 (50) 0.000 AugSepJul 0.0920.0710.077 (50)(40) 0.0000.015 (99) UC2 II Vaal RU35 EWR8 C Quantity Low Flows Low flows need to be maintained to support the EWR maintenance low ecosystem. and drought flows: Wilge EWR8 in C82C, VMAR = 474.3x10 m3, Maintenance low flows (m3 /s) (Percentile) Drought REC =C category* flows (m3 /s) NovOct 0.0830.053 (99) 0.2360.011(Percentile) (99) MarFebJanDec 1.251.41.1(60)0.97 (60) (60) 0.3550.4220.3160.274 (99) 32
No. 3900 1 ILIAIUA Class River River RURU Node Node REC ComponentComponent CompSubCompSub onent RQOROO Indicator/ measuremeasure Numerical Limits JulJunAprJulJunMay 0.40.450.651 (60) (50) (50) 0.0110.0310.060.27 (99) (99) This gazette isalsoavailable freeonlineat www.gpwonline.co.za ThereLow flow: is AugSepAug 0.40.33 (50) (50) flowsDrought0.1180.015 (m3 (99) /s) thepotential low for OctMaintenance low flows (m3 /s) (Percentile) 1.358 (70) 0.011(Percentile) (99) GO impactednegativelyRUflows to inbe this 1 EWR maintenance JanDecNov 2.5382.2461.977 (99) 1.1120.9920.829 (99) VERNMENT GAZETTE,17 JULY 2015 UC3 II Vaal RU40 UC3.4 C/D Quantity LowLow Flows Flows fromreleasesThereunnaturalby is =WilgeEWRlow 591.36x106m3 and forin drought C82H,C category, VMAR flows: AprMarFeb 1.6062.2262.8173.297 (70)(80)(99) 0.0600.621(99)1.2261.431 (99) improvedshouldflowsDamSterkfontein Low be to AugJulJunMay 0.9741.0421.206 (70) 0.0150.0070.031 (99) potentialcategorya C/D for MaintenanceSep low flows (m3 /s) (Percentile) 1 102 (80) flowsDrought0.321(99) (m3 /s) supportimprovedneedLow flows to thebe to VaalandEWR drought in maintenance C12H. flows PES low= JanDecNovOct 4.543.5915.2291,775 (60) (60) (60)(70) 0.50.40.30.1(Percentile) (99) UG II Vaal RU58 UG.4 C Quantity Low Flows andforecosystem irrigation otherprovide scoreEcoClassification(equivalentB/C category 70 -80)' to AprMayMarFeb 1.5593.2045.0027.501 (60)(70) 0.10.30.50.8 (99) theusers. low AugSepJulJun 0.5540.40.6870.776 (60) (60) 0.000.000.05 (00) II improvedneedLow flows to be to droughtandEWR high maintenance flows. flows and low (Percentile)Maintenance low flows (m3 /s) (m3flowsDrought /s) (m3High /s) flows UH Vaal RU60 EWR9 B/C Quantity Low Flows forflowsandecosystemsupport users. provide in thethis RECVMARinSuikerbosrant C21 = C,=31.31 C category' x106m3. EWR9 JanOctDecNov 0.1770.120.1820.147 (60) (60) (60) 0.0660.060.05(Percentile) (99) (99) 51.5 for for 4 days3 days RU to be negatively impacted by unnatural releases from Sterkfontein Dam. Low flows should be improved to a C/D 1. EWR maintenance category low and drought flows: EWR for C category, Wilge in C82H, VMAR Maintenance low flows (m3 /s) (Percentile) Drought = 591.36x106m3 flows (m3 /s) Oct 1.358 (70) 0.011(Percentile) (99) FebJanDecNov 3.2972.5382.2461.977 (99) 1.4311.1120.9920.829 (99) AprJunMayMar 1.2061.6062.2262.817 (70)(80)(99) 0.0310.0600.621(99)1.226 (99) AugSepJul 1.1020.9741.042 (80)(70) 0.321(99)0.0150.007 (99) Low flows UG II Vaal RU58 UG.4 C Quantity Low Flows need to be improved to support the ecosystem and provide for irrigation and other EWR maintenance low users. and drought flows: Vaal in C12H, PES = B/C category (equivalent to EcoClassification Maintenance low flows (m3 /s) (Percentile) Drought score 70 -80)* flows (m3 /s) JanDecNovOct 4.545.2293.5911.775 (60) (70)(60) 0.5 (99) 0.40.30.1(Percentile) (99) MayAprMarFeb 1.5593.2045.0027.501 (60)(70) 0.10.8 (99) 0.30.5 (99) AugSepJulJun 0.5540.40.6870.776 (60) (60) 0.000.05 (00) Uhl II Vaal RU60 EWR9 B/C Quantity Low Flows Low flows need to be improved to support the ecosystem and provide EWR maintenance low for users. and high flows and drought flows: Suikerbosrant EWR9 in C21 C, VMAR =31.31 x106m3, Maintenance low flows (m3 /s) REC = C category* (Percentile) flows(m3/s)Drought High flows
JanDecNovOct 0.1820.1470.1770.12 (60) (60) 0.0660.060.05 (99)(99)0.05 (99) 51.51:5 for for 4 3days days fo)
IUAIUA Class River RURU Node REC Component CompSub Sub onent RQO Indicator/ measure Feb 0.231 (60) Numerical Limits ical Limits 0.079 (99) 1.5 for 3 days maintainedneedHigh flowsto be AprJunMayMar 0.1230.1430.160.18 (60) (60) 0,0570.0590.0640.0660.079 (99) 1.5 for 3 days This gazette isalsoavailable freeonlineat www.gpwonline.co.za theto support Jul 0.08 (70) 0.05 (99) fishespeciallyecosystem AugSep 0.0750.065 (70) 0.04 (99) Drought need to be OctMaintenance low flows (m3 /s) (Percentile) 0.034 99() 0.034(Percentile)flows (m3 /s) STAATSKOERANT, UI Ill Suikerbosrand RU62 EWR11 D Quantity Low Flows cappedshouldLow flows be to andEWR drought maintenance flows: kspruil EWR11 FebJanDecNov 0.370.340.3 (99) 199)(99) 0.370.340.3 maintainedecosystem.protect the RECVMAR=in C21 = F, D 100.69x10 category' m3, AprJunMayMar 0.30.320.34 (99) (99) 0.30.320.34 Jul 0.3 1 AugSep 0.3 (99) 0.3 7 JULIE2015 reachinHigh the flows river NovMaintenance high flows (m3 /s) 50 for 3 days
upstream of UM Ill Vaal RU75 EWR5 C Quantity High Flows needMooiwithtothe support the Riverto e be RECMAR=EWR = high2288.0x10 C category' flows: 6 Vaal m3. JanDec 50 for 3 days theecosystemsupportprovided the to MarFeb 400180.260 -570 for 3for -5 3-5 days days No. 3900 1
ecosystem 33 especially AprJunMay 0.1230.1430.16 (60) (60) 0.0570.0590.064 (99) fish AugSepJul 0.0750.0650.08 (70) (70) 0.040.050.04 (99) (99) UI Ill Suikerbosrand RU62 EWR11 D Quantity Low Flows Low flows should be capped to protect the EWR maintenance ecosystem. and drought flows: Blesbokspruit EWR11 in C21 F, VMAR= 100.69x106m3, Maintenance low flows (m3 /s) (Percentile) Drought REC = D category* flows (m3 /s) NovOct 0.034 990 0.30.034(Percentile) MarFebJanDec 0.340.370.3 (99) (99) 0.340.370.3 JulAprJunMay 0.3 0.30.320.34(99) (99) (99) 0.30.30.320.34 High flows SepAug 0.3 (99) 0.3 UM Ill Vaal RU75 EWR5 C Quantity High Flows in the river reach withtheMooiconfluenceupstream the River of need to be provided to EWR high flows: Vaal ecosystem.support the MAREWR5 = in2288.0x10 C23L, m3, e Maintenance high flows (m3 /s) REC = C category*
Nov 50 for 3 days JanDec 50 for 3 days MarFeb 400180 -570 -260 for 3for -5 3 days -5 days 34
No. 3900 1 Table 4: Resource Quality Objectives for RIVER WATER QUALITY in the Upper Vaal IUA ClassClass RiverRiver RU Node RECB/C C Component CompSubComponent Sub onent RQO Phosphate(PO4)PhosphateIndicator/indicator/ /PO,) ' ' measuremeasure 5s 0.020 mgNumerical /L P Limits 0.121 PercentilePe cetntile This gazette isalsoavailable freeonlineat www.gpwonline.co.za UA II Vaal RU10RU8 EWR1EWR1UA.8 BICBB)(B) Quality Nutrients theThe theimprovedTheecosystem. nutrient ecosystem. nutrient condition to providecondition must for must usersbe be and /NO')NitrateNitratePhosphate(PO,) (NO3) (NO3)(NO & -,)Nitrite & &Nitrite Nitrite s 0.850.020 mg mg /L /L N P 0.00850.858 (NO2) s 0.85 mg /L N 0.099 GO
UC3 II Vaal RU40 UC3.4 CID The nutrient condition must be Phosphate(PO4) 5 0.075 mg /L P 0.08 VERNMENT GAZETTE,17 JULY 2015 UE Ill Vaal RU50RU47 UE.5UE.2 D Quality Nutrients improvedThethemaintained ecosystem. nutrient to to ancondition provide acceptable formust users level be and for NitratePhosphate(PO,)(NO2) (NO3) & Nitrite 5s 2.504.000.125 mg mg /L /L N P 1.0080.08 UH II Vaal RU10RU60 UA.8 EWR9 B/C Quality Nutrients theimprovedThe ecosystem. nutrient to ancondition acceptable must level be for (NOZ)NitratePhosphate(PO4)Phosphate(PO,)'(NO2) (NO3) & Nitrite * s5S 0.850.0200.85 mg mg /L /L N P 1.620.00850.60.858 UC3 UL IllII VaalMooi RU40 UC3.4 RÚ71 UL.2 C/D D Quality Nutrients ThemaintainedtoThe nutrient an nutrients acceptable condition to shouldprovide state. must be for improvedbe users and (NO2)(NO3)NitratePhosphate(PO4)Phosphate(PO,)(NO,) * (NO3) & Nitrite * s5S 4.000.0750.1250.85 mg mg /L /L N P 0.080.40.0991.94 UM Ill Vaal RU75RU73 EWR5 UL.4 C Quality Nutrients Thetothe an ecosystem. nutrients acceptable should state be improved NitratePhosphate(PO,)'limitsPhosphates (NO3) 0.4 mg & Nitrite/I)(RWQO * 51.00s5 0.0250.125 mg mg /L /L N P 0.250.21.40 RU8 EWR1 B/C Quality Salts to anmaintainedSalt acceptable concentrations to meetstate qualityneed to be ElectricalTotal(NO2)(NO2) Ammonia' * 5S 70732.50 mSpg mg /L /m N/L N 1.0081.5 UEUA IllII Vaal RU10RU47 UA.8 BIC(B) Quality Salts andthatSaltsmaintainrequirements todo need provide not the tothreaten ecosystem forbe for improvedagriculture users. the ecosystemwellbeing.. to and levels to conductivity'Electrical 5 70 mS /m 29.4.51. UE Ill Suikerbosrant Vaal RU62RU47 EWR11 UE.2 D Quality Salts andthatSalts todo provide not need threaten forto beusers. theimproved ecosystem to levels conductivity'Electrical 5111 mS/m 79.1 UI Ill Vaal RU66RU50RU65 UE.2UI.3 UI.4 D Quality Salts andthatSalts todo need provide not tothreaten be for improved users, the ecosystem to levels conductivity`Electrical 5 111 mS /m 98.190.6135 UE.5 D Quality Nutrients Theimproved nutrient condition to an acceptable must be level for the ecosystem. NitratePhosphate(PO4) (NO,) & Nitrite * 5 0.125 mg /L P 0.08 (NO2) * S 4.00 mg /L N 1.008 UH II Vaal . RU60 EWR9 B/C Quality Nutrients Theimproved nutrient condition to an acceptable must be level for the ecosystem. NitratePhosphate(PO4)* (NO3) & Nitrite S 0.020 mg/L P 0.6 1.62 UL III Mooi RU71 UL.2 D Quality Nutrients The nutrients should be improved (NO2) * S 0.85 mg /L N Vaal RU73 UL.4 Theto nutrients an acceptable should state.be improved (NO2)NitratePhosphate(PO4) * (NO3) & Nitrite * s5 4.000.125 mg mg /L /L N P 1.940.4 to an acceptable state Phosphates (RWQO UM III Vaal RU75 EWR5 C Quality Nutrients The nutrients should be improved limits 0.4 mg /I) * 5 0.125 mglL P 1.40 to an acceptable state NitratePhosphate(PO4)* (NO3) & Nitrite 5 0.025 mg /L P 0.2 Total(NO2) Ammonia* * 5S 731.00 pg mg /L N/L N 1.50.25 UA II Vaal RU8 EWR1 B/C(B) Quality Salts Salt concentrations need to be maintained to meet quality requirements for agriculture and to maintain the ecosystem wellbeing.. Electrical conductivity* 5 70 mS /m 51. RU10 UA.8 B/C Quality SaltsSalts thatandSalts do notto need provide threaten to be for theimproved users. ecosystem to levels thatSalts do not need threaten to be theimproved ecosystem to levels Electrical and to provide for users. conductivity*
Electrical conductivity* 5 70 mS /m
5 111 ms /m 29.4.
UE Ill Vaal RU47 UE.2 D Quality 79.1 UI III Suikerbosrant RU62 EWR11 D Quality Salts thatandSalts do notto need provide threaten to be for theimproved users. ecosystem to levels Electrical Vaal RU66RU65 UI.3 UI 4 conductivity* 5 111 mS /m 98.190.6135
IUARJR Class RiverRiver RU NodeNode REC ComponentComponent ComponentCompSub Sub onent Salts need to be improved to levels RQORQO Indicator/ measure Numerical Limits Percentile 95th UL Ill VaalMooiMoo' RU71RU73RU71 UL.4UL.2 D Quality Salts thatSaltsand todo need provide not tothreaten be for improved users. the ecosystem to levels conductively'Electrical
No. 3900 1 IUA Class River RURU Node REC Component Component Sub ROO IndicatoriIndicator! measure Numerical Limits Percentile 95th AtrazineEndosulfanChlorineZn *' * * 5 0.2005.05s 361000.2005.0pg pg/L pg/Lpg /Lfreepg /L free/L CI CI No dataNo data This gazette isalsoavailable freeonlineat www.gpwonline.co.za CdAsAlF' hard s552.5mg 953.0105 pg pg pg /L /L/L 0.50No data Cr(VI) 5 121 pg/L No data GO UG II Vaal RU58RU58 UG.4 C Toxins The river water should notnot bebe toxictoxic HgCu hard * s 6.00.97 pg pg/L /L No data VERNMENT GAZETTE,17 JULY 2015 Quality to humanaquatic health.organisms or be a threat ZnSePbMn hard ' 5s 259.5022 pgpg/L pg/L /L 0.9 pg/L No data AtrazineEndosulfanChlorine ' 53.Omg5<_ 790.130 3.1 pg pg/L /Lpg /L /Lfree CI 0.465No data to aquatic organisms or be a threat Cr(VI)AsCdAlF* * '*hardF' s552.5 130150955.0200105 pg mg pg pgpg/L /L /L/L 0.50No data UI Ill Suikerbosrant and Vaal RU66RU65RU62 UI 3 EWR11 UI 4 D Quality Toxins to aquatictoThe human river organisms waterhealth. should or be not a threat be toxic PbHgCuMnCr(VI)Cd hard*" * "* g s5 13.006.08.00.9713001213.01.70 pg pg pg pg/L pg pg/L /L/L /L /L No dataNo data to human health. EndosulfanZnChorineSePbMn *hard* "* " 5 252236305.09.509900.200 pg pg pgpg /L pg/L/L /L/L free CI No data AsFAlAtrazineEndosulfanChlorine *' * 553.Omg 130150791000.1303.1 pg pg/Lpg /Lpg /L free/L CI No0.05 data UL Ill Moo' RU71 UL.2 D Quality Toxins concentrationsTheto river aquatichuman water health,organisms needshould toUranium notbe or atbe be toxic a threat HgCuCr(VI)'Cd hard ' 5s 5.08.02001.70 pg pg/Lpg pg /L /L /L No data UI Ill Suikerbosrant and Vaal RU62 acceptable levels. ZnSePbMn hard* ' 5s 13.0036301300 pg pg/Lpg /L/L No data RU65 RU66 UI.3 UI.4 EWR11 D Quality Toxins The river water should not be toxic to aquatic organisms or be a threat AlF * * 5 3.0150 mg pg /L No0.465 data CuCr(VI)CdAs *hard * * 5 8.02005.0130 pg pg /L /L No data to human health. SePbMnHg *hard * 5 3013.001.701300 pg pg /Lpg/Lpg /L /L No data AtrazineEndosulfanChorineZn * ** * s5 361000.2005.0 pg pgpg /Lpg /L /L /Lfree CI No data UL Ill Mooi RU71 UL.2 D Quality Toxins The river water should not be toxic to aquatic organisms or be a threat to human health. Uranium concentrations need to be at AsAlF * * * 5 3.0130150 mg pg /L 0.05No data HgCuCr(VI)Cd *hard * * 5 5.08.02001.70 pg pg pg /L /L /L No data acceptable levels. ZnSePbMn *hard* * 5 363013.001300 pg pg/Lpg /L/L No data
IUA Class River RU Node REC Component ComponentCompSub Sub onent RQQRQO Indicator/ measure Numerical Limits Percentile 95th AtrazineUraniumAtrazine'EndosulfanChorine * *'* * 5s 150.200100s5 pg 1005.0 pg /Lpg /Lpgpg /L /L/L free CI No data This gazette isalsoavailable freeonlineat www.gpwonline.co.za UE Ill VaalVaal RU50RU47 UE 5 D Quality Pathogens (excludinglevelsPathogens safe forforshould directhuman be consumption). maintaineduse at E.coli ' 5 130ml counts /100 No data UI Ill Suikerbosrant RU65RU62 EWR11 UI.3 D Quality Pathogens levelsPathogens safe forshould human be maintaineduse at E coli " 5 130mls 130 counts counts /100 /100 No data Vaal (excluding for direct consumption). ml STAATSKOERANT, UM Ill Vaal RU50RU75RU66 EWRS5 UE.2UI4 C Quality Pathogens (excludinglevelsPathogens safe forforshould directhuman be consumption). maintaineduse at E.coli s 130ml5 130counts counts /100 /100 No dataNo data 1 UE.5 D Quality Pathogens Pathogens should be maintained at 7 JULIE2015
levels safe for human use (excluding for direct consumption). E.coli * 5 130ml counts /100 No data UI Ill Suikerbosrant RU62 EWR11 D Quality Pathogens Pathogens should be maintained at No. 3900 1
levels safe for human use 37 (excluding for direct consumption). E.coli * 5 130 counts /100 Vaal RU65 UI.3 5ml 130 counts /100 No data ml No data UM Ill Vaal RU75RU66 EWRS5 UI.4 C Quality Pathogens Pathogens should be maintained at ml 30 counts /100 No data levels safe for human use (excluding for direct consumption). E.coli * 5 130ml counts /100 No data 38
No. 3900 1 TableIUATable 5: Resource5: Resource Qua Quality ity Objectives Objectives for for RIVER RIVER INSTREAM INSTREAM HABITAT HABITAT and and BIOTA BIOTA in thein the Upper Upper Vaal Vaal catchment catchment Class River RU REC RQO Numerical Limits II VAAL 1 B Instream habitat must be in a largely natural condition to support the Instream Habitat Integrity category s B (5 82) This gazette isalsoavailable freeonlineat www.gpwonline.co.za Instreamecosystem biota must be in a largely condition and at sustainable levels, Fish ecological category: z B (s 82) upstreamUA. Vaal Riverof Low and high flows must be suitable to maintain the river habitat for ecosystem Macro -invertebrate ecological category: s B (5 82) GO Grootdraai Dam SaltWatercondition. concentrations quality: must be maintained to meet quality requirements for HydrologicalInstream Ecostatus category category z B (s a 82) B (a 82) VERNMENT GAZETTE,17 JULY 2015 Il VAAL 8 B/C agricultureInstream and habitat to maintain must be the in ecosystem a better than wellbeing. moderately modified condition to InstreamWater Quality Habitat category: Integrity a categoryB (5 82) a B/C (a 78) JUA Class River RU REC sustainablesupportInstream levels biota mustThe requirements be in a better ofthan ecologically moderately important modified fish condition species and must at the ecosystem and for property values and recreation MacroFish ecological -invertebrate category: ecological a B/C category: (5 78) a B/C (a 78) i mlts UA.Grootdraaiupstream Vaal Riverof Dam condition.Lowbe provided and high for. flows must be suitable to maintain the river habitat for ecosystem HydrologicalInstream Ecostatus category category a B/C (5a B/C78) (a 78) otherTheWater nutrient users. quality: concentrations must be decreased for ecosystem condition and Water Quality category a B/C (5 78) Il VAAL 10 B/C supportInstream biotahabitat must must be be in ina bettera better than than moderately moderately modified modified condition condition and to at the ecosystem and for property values and recreation FishInstream ecological Habitat category: Integrity acategory B/C (5 78) a B/C (a 78) GrootdraaiupstreamUA. Vaal Riverof Dam Lowbesustainable provided and high for.levels. flows The must requirements be suitable ofto ecologicallymaintain the important river habitat fish forspecies ecosystem must InstreamMacro- invertebrate Ecostatus categoryecological a category:B/C (5 78) 2 B/C (2 78) II VAAL 1 B TheWaterInstreamcondition. nutrient quality: habitat concentrations must be in musta largely be decreased natural condition for ecosystem to support condition the and WaterHydrological Quality category category2 S B/C B/C (5 (5 78) 78) GrootdraaiState)UB. Klip River Dam (Free II KLIP 21 C/D conditiontheother Instreamecosystem. users. and habitat at Instream sustainable must biota be levels in must a better to be support in than a better largelybiodiversity.Flows than modified largely conditionmodified must be to support ecologicalInstream Habitat category: Integrity az C/D category (5(a 58)Macro-58)Instream z C/D invertebrate(a Ecostatus 58)Fish ecosystem.
Instream biota must be in a largely condition and at sustainable levels.
Low and high flows must be suitable to maintain the river habitat for ecosystem condition. Instream Habitat Integrity category a B (a 82) Water quality: Fish ecological category: a B (a 82)
Macro -invertebrate ecological category: a B (a 82)
Instream Ecostatus category a B (a 82)
Hydrological category a 8 (a 82)
Salt concentrations must be maintained to meet quality requirements for Water Quality category: a B (a 82) agriculture and to maintain the ecosystem wellbeing. UA. Vaal River
upstream of Il VAAL 8 B/C Instream habitat must be in a better than moderately modified condition to Grootdraai Dam sustainablesupportInstream the levels.ecosystem biota mustThe requirementsandbe in for a betterproperty ofthan ecologicallyvalues moderately and importantrecreation modified fish condition species and must at be provided for.
Low and high flows must be suitable to maintain the river habitat for ecosystem condition. Instream Habitat Integrity category a B/C (a 78) Water quality: Fish ecological category: a B/C (a 78)
Macro -invertebrate ecological category: a B/C (a 78)
Instream Ecostatus category a B/C (a 78)
Hydrological category a B/C (a 78)
The nutrient concentrations must be decreased for ecosystem condition and Water Quality category:a B/C (a 78) other users. UA. Vaal River upstream of Il VAAL 10 B/C supportInstream biotahabitat must must be be in ina bettera better than than moderately moderately modified modified condition condition and to at the ecosystem and for property values and recreation Grootdraai Dam sustainable levels. The requirements of ecologically important fish species must be provided for.
Low and high flows must be suitable to maintain the river habitat for ecosystem condition. Instream Habitat Integrity category a B/C (a 78) Water quality: Fish ecological category: a B/C (a 78)
Macro -invertebrate ecological category: a B/C (a 78)
Instream Ecostatus category a B/C (a 78)
Hydrological category a B/C (a 78)
The nutrient concentrations must be decreased for ecosystem condition and Water Quality category:a B/C (a 78) UB. Klip River (Free other users. State) Il KLIP 21 C/D Instream habitat must be in a better than largely modified condition to support the ecosystem.lnstream biota must be in a better than largely modified condition and at sustainable levels to support biodiversity.Flows must be Instream Habitat Integrity category a C/D (a 58)Fish ecological category: a C/D (a 58)Macro- invertebrate ecological category: a C/D (a 58)Instream Ecostatus
IUA Clams'Class ilkRiver RURU REC'REC suitable to maintain the river habitat for ecosystem condition. Low flows must RRQO category a CID (a 58)Hydrological category z CID (a NumericalNUex Limits ikrai Ef is UC2. Wilge River II WILGE 35 C Instreambe limitedsuitable habitatto to protect maintain must the be theecosystem. in FEPA a moderately status. Water modified quality: or better Ammonia condition toxicity to must Instreamcategory:a58)FEPA Habitatrequired C/D (a Integrity 58)low flows: category a C (a a 62)Water C (a 62) Quality
This gazette isalsoavailable freeonlineat www.gpwonline.co.za and tributaries the ecosystem ecologicalconditionsInstreamsupport biota importanceneeded must for be mustthe in aprotecion moderatelybe provided of the modified for. genetic condition integrity or of better. fish species The habitat of Macro-Fish ecological invertebrate category:a ecological C (a category:a 62) C (a 62) Flowsbe suitable must to be maintain suitable the to maintainFEPA status.Water the river habitat quality: for Ammonia ecosystem toxicity condition. must categoryHydrological58)FEPAInstream >_ C/D Ecostatusrequired category(a 58)Hydrological low category aflows: C (a a62)a CC category (a(a 62)62)Water a C/D Quality (a STAATSKOERANT, PathogensecosystemNutrientWater quality: concentrations must be maintained must be at suitable levels safe for users for human and to use protect (excluding the for Water Quality category:? C (a 62) UC3. Lower Wilge II LOWER WILGE 40 C/D Instreamdirect consumption). habitat must be in a better than largely modified condition to support Instream Habitat Integrity category a C/D (a 58) River 1 andUC2. tributaries Wilge River II WILGE 35 C Instreamthebe limitedecosystem. biotahabitat to protect must must thebe be inecosystem. ina bettera moderately than largely modified modified or better condition condition and toat Fishcategory:a ecological C/D (acategory 58) a CID (a 58) 7 JULIE2015 LowFlowssustainable flows must must levels.be suitable mimic the to themaintain natural the flow river patterns habitat for ecosystem condition. InstreamMacro -invertebrate Ecostatus ecologicalcategory a category: C/D (a 58) a C/D (a 58)
Hydrological category a C/D (a 58) UD. Liebenbergsvlei Ill 45 B Instreamecosystem.NutrientWater quality: concentrations habitat must be must in a be largely suitable natural for users condition and toto protectsupport the the InstreamWater Quality Habitat category:a Integrity C/Dcategory (a 58) a B (a 82)Fish River RiverLiebenbergsvlei quality:ecosystemIevels,Lowsupport Water the condition.Instreamand ecosystem. quality high biotaflows shouldFlows mustmust must be beinbe reflect a insuitable close a largely the to toflownatural conditionmaintain regime condition. theandof the river at region.Watersustainable habitat for categoryecological a category: B (a 82)Hydrological a B (a 82)Instream82)Macro- category invertebrate Ecostatus a B (a UE. Waterval River Ill Waterval River 47 D Instreamthe ecosystem. biotahabitat must must be be in inlargely a largely modified modified or better or better condition. condition to support FishInstream82)Water ecological HabitatQuality category:a Integritycategory: category D a (aB (a42) 82) a D (a 42) WaterFlows quality:must be in largely modified or better condition. InstreamMacro- invertebrate Ecostatus categoryecological a category:D (a 42) a D (a 42) No. 3900 1
Instream biota must be in a moderately modified condition or better. The habitat 39 conditions needed for the protecion of the genetic integrity of fish species of ecological importance must be provided for.
Flows must be suitable to maintain the river habitat for ecosystem condition. Instream Habitat Integrity category a C (a 62) Water auality: Fish ecological category:a C (a 62)
Macro -invertebrate ecological category:a C (a 62)
Instream Ecostatus category a C (a 62)
Hydrological category a C (2 62)
Nutrient concentrations must be suitable for users and to protect the Water Quality category:a C (a 62) ecosystem.
Pathogens must be maintained at levels safe for human use (excluding for UC3. Lower Wilge direct consumption). River II LOWER WILGE 40 C/D Instream habitat must be in a better than largely modified condition to support the ecosystem.
Instream biota must be in a better than largely modified condition and at sustainable levels.
Flows must be suitable to maintain the river habitat for ecosystem condition. Low flows must mimic the the natural flow patterns Instream Habitat Integrity category a C/D (z 58) Water quality: Fish ecological category: a C/D (a 58)
Macro -invertebrate ecological category: a C/D (a 58)
Instream Ecostatus category a C/D (a 58)
Hydrological category a C/D (a 58)
Nutrient concentrations must be suitable for users and to protect the Water Quality category:a C/D (a 58) UD. Liebenbergsvlei ecosystem. River Ill Liebenbergsvlei River 45 B Instream habitat must be in a largely natural condition to support the ecosystem.lnstream biota must be in a largely condition and at sustainable levels.Low and high flows must be suitable to maintain the river habitat for ecosystem condition. Flows must reflect the flow regime of the region.Water Instream Habitat Integrity category a B (a 82)Fish auality: Water quality should be in a close to natural condition. ecological category: a B (a 82)Macro- invertebrate ecological category: a B (a 82)Instream Ecostatus category a B (a 82)Hydrological category a B (a UE. Waterval River III Waterval River 47 D Instream habitat must be in a largely modified or better condition to support 82)Water Quality category: a B (a 82) the ecosystem.
Instream biota must be in largely modified or better condition.
Flows must be in largely modified or better condition. Instream Habitat Integrity category a D (a 42) Water quality: Fish ecological category:a D (a 42)
Macro -invertebrate ecological category: a D (a 42)
Instream Ecostatus category a D (a 42) 40
No. 3900 1 IUA Class River RU REC RQO Numerical Limits TheSaltecosystem.The nutrient concentrationsnutrient concentrations concentrations must must to bemust be improved improvedbe improved to tolevels an to acceptablean that acceptable do not level threaten level for thefor the the WaterHydrological Quality category category:a a D D (a (a 42) 42) This gazette isalsoavailable freeonlineat www.gpwonline.co.za Oxygenecosystem levels and must to provide be improved for users. to support the ecosystem_
The river water must not be toxic to aquatic organisms or be a threat to human GO
health. VERNMENT GAZETTE,17 JULY 2015 UE. Waterval River Ill Waterval River 50 D theInstreamconsumption).Pathogens ecosystem. habitat must Instream mustbe at belevels biota in a safe largelymust for be modifiedhuman in largely use or modifiedbetter(excluding condition or forbetter direct to condition. support Instream Habitat Integrity category a D (a 42)Fish ecosystemnutrientfor.FlowsThe requirements concentrations must and beto oflimitin largelyfish filamentousmust species modified be improved of algal ecological or better growth. to an condition.Waterimportance acceptable The river watermust level quality: be mustfor provided the not The be 42)Watercategoryecological aQuality category:a category:D (a 42)Hydrological category:a 2 D D (s (2 42)Macro- 42)Instream D (2 category 42) invertebrate Ecostatus a D (a UG Vaal River from II VAAL 58 C InstreamatSalttoxic levels concentrations to aquatic safe habitat for organisms humanmust must be use toin or be a (excludingbe moderately improved a threat for to modified directhumanlevels consumption). that health. or betterdo not conditionthreaten theto Pathogens must be Instream Habitat Integrity category a C (a 62) VaalGrootdraai Dam Dam to requirementsInstreamsupport biota of must fish speciesbe in a moderately of ecological modified importance or better must condition. be provided The for the ecosystem. MacroFish ecological -invertebrate category:a. ecological C (a category:a 62) C (5 62) ecosystemrequirementsLowFlows flows must must and be of suitable toirrigationbe provide sufficient to and formaintain tootherusers. support users.the riverthe ecosystem habitat for andecosystem to provide condition. for the HydrologicalInstream Ecostatus category category a C (S a62) C (5 62) TheaquaticTemperaturesWater river quality. biota water and must oxygen not be concentrations toxic to aquatic must organisms not threaten or be thea threat viability to human of Water Quality category:a C (a 62) RiverUH. Suikerbosrand II RiverSuikerbosrand 60 B/C Instreamhealth. habitat must be in a better than moderately modified condition to the ecosystem.lnstream biota must be in a better than moderately Instream Habitat Integrity category a B/C (S 78)Fish decreasedthesuitablemodifiedsupport sufficient tocondition maintainfor for ecosystem users. and the at Waterriver sustainablecondition habitat quality and for TheIevels.Low otherecosystem nutrient users. and concentrations condition. Temperature high flows Low must andmust flows be oxygen be must categoryecological78)Water a category: B/C Quality (a 78)Hydrological a Scategory:a B/CB/C (S (S 78)Macro- 78)Instream B/C category (a 78) invertebrate Ecostatus z B/C (S Oxygen levels must be improved to support the ecosystem.
The river water must not be toxic to aquatic organisms or be a threat to human health.
Pathogens must be at levels safe for human use (excluding for direct Hydrological category a D (a 42) consumption).
Water Quality category: a D (a 42) UE. Waterval River Ill Waterval River 50 D Instream habitat must be in a largely modified or better condition to support the ecosystem.Instream biota must be in largely modified or better condition. The requirements of fish species of ecological importance must be provided for.Flows must be in largely modified or better condition.Water quality: The ecologicalInstream category: Habitat aIntegrity D (a 42)Macro- category invertebrate a D (a 42)Fish ecological category: a D (a 42)Instream Ecostatus category a D (a 42)Hydrological category a D (a nutrient concentrations must be improved to an acceptable level for the 42)Water Quality category: a D (a 42) ecosystem and to limit filamentous algal growth. The river water must not be UG. Vaal River from attoxic levels to aquatic safe for organisms human use or (excludingbe a threat for to directhuman consumption). health. Pathogens must be Grootdraai Dam to Vaal Dam II VAAL 58 C Instream habitat must be in a moderately modified or better condition to Instreamsupport biota must be in a moderately modified or better condition. The the ecosystem. requirements of fish species of ecological importance must be provided for.
Flows must be suitable to maintain the river habitat for ecosystem condition. Low flows must be sufficient to support the ecosystem and to provide for the requirements of irrigation and other users. Instream Habitat Integrity category a C (a 62) Water quality: Fish ecological category: a C (a 62)
Macro -invertebrate ecological category: a C (a 62)
Instream Ecostatus category a C (a 62)
Temperatures and oxygen concentrations must not threaten the viability of WaterHydrological Quality category: category a Ca (aC (a62) 62) aquatic biota.
The river water must not be toxic to aquatic organisms or be a threat to human UH. Suikerbosrand health. River II SuikerbosrandRiver 60 B/C Instream habitat must be in a better than moderately modified condition to support the ecosystem.lnstream biota must be in a better than moderately modified condition and at sustainable levels.Low and high flows must be suitable to maintain the river habitat for ecosystem condition. Low flows must the sufficient for users.Water quality: The nutrient concentrations must be ecologicalInstream category: Habitat aIntegrity B/C (a category78)Macro- a invertebrateB/C (a 78)Fish ecological category: a B/C (a 78)Instream Ecostatus category a B/C (a 78)Hydrological category a B/C (a decreased for ecosystem condition and other users. Temperature and oxygen 78)Water Quality category: a B/C (a 78)
IUAIUA Class River RU REC RQO Numerical Limits UHUH. SuikerbosrandSuikerbosrand II Blesbokspruit 62 D Instreammust be suitable habitat mustto support be in thea largely ecosystem modified in a or good better condition. condition to support Instream Habitat Integrity category a D (a 42)
This gazette isalsoavailable freeonlineat www.gpwonline.co.za River the ecosystem. suitableFlowsInstream must to biota support be mustin largely the be ecosystems in modified largely modified or functions. better orcondition. better condition. Low flows must be InstreamMacro-Fish ecological invertebrate Ecostatus category:a categoryecological D (aa category: D42) (a 42) a D (a 42) River II Blesbokspruit 62 D Saltstate.InstreamTheWater concentrationsnutrient quality: habitat concentrations must must be bein mustaat largely levels be decreased thatmodified do not or to threaten better an acceptable condition the ecosystem mesotrophic to support and WaterHydrological Quality category category:a a D D (a (a 42) 42) STAATSKOERANT, Theare healthsuitable river water for users.must not be toxic to aquatic organisms or be a threat to human 1 UI Klip River Ill Klip River 65 D theconsumption). InstreamPathogensecosystem. habitat must mustbe at belevels in a safe largely for modifiedhuman use or better(excluding condition for direct to support Instream Habitat Integrity category a D (a 42)Fish 7 JULIE2015 (Gauteng) concentrationscondition.Flowsthe beecosystem.lnstream suitable tomust must support be be at biotain the levels largely ecosystemmust that modified be do in notfunctions.largely orthreaten better modified Water condition.the ecosystem orquality: better Low Salt flowsand are must 42)Watercategoryecological a Qualitycategory:category:a D (a 42)Hydrological category:a >_ D D (a (a 42)Macro- 42)InstreamD (a category 42) invertebrate Ecostatus a D (a UI. Klip River III Riet 66 D threatsuitableInstream(excluding to forhuman users.The habitat for health. direct must river consumption). be water in a mustlargely not modified be toxic or to betteraquatic condition organisms to support or be a Pathogens must be at levels safe for human use Instream Habitat Integrity category a D (a 42) (Gauteng) the Instreamecosystem. biota must be in largely modified or better condition. Macro-Fish ecological invertebrate category:a ecological D (a category: 42) a D (a 42) WatersuitableFlows quality. to must support be inthe largely ecosystem modified functions. or better condition. Low flows must be HydrologicalInstream Ecostatus category category a D (a a42) D (a 42) InstreamDissolvedareSalt suitable concentrations biota organic must for users. be carbon mustin largely beconcentrations at modified levels that or mustbetterdo not not condition. threaten cause thethe ecosystemecosystem toand Water Quality category:a D (a 42) No. 3900 1
41 Flows must be in largely modified or better condition. Low flows must be suitable to support the ecosystems functions. Instream Habitat Integrity category a D (a 42) Water quality: Fish ecological category:a D (a 42)
Macro -invertebrate ecological category: a D (a 42)
Instream Ecostatus category a D (a 42)
Hydrological category a D (a 42)
The nutrient concentrations must be decreased to an acceptable mesotrophic Water Quality category:a D (a 42) state.
Salt concentrations must be at levels that do not threaten the ecosystem and are suitable for users.
The river water must not be toxic to aquatic organisms or be a threat to human health. UI. Klip River consumption).Pathogens must be at levels safe for human use (excluding for direct (Gauteng) Ill Klip River 65 D the Instreamecosystem.Instream habitat must biota be in must a largely be in modifiedlargely modified or better or conditionbetter to support condition.Flows must be in largely modified or better condition. Low flows must be suitable to support the ecosystem functions.Water quality: Salt Instream Habitat Integrity category a D (a 42)Fish ecological category:a D (a 42)Macro- invertebrate ecological category: a D (a 42)Instream Ecostatus category a D (a 42)Hydrological category a D (a concentrations must be at levels that do not threaten the ecosystem and are 42)Water Quality category:a D (a 42) suitable for users.The river water must not be toxic to aquatic organisms or be a UI. Klip River (excludingthreat to human for direct health. consumption). Pathogens must be at levels safe for human use (Gauteng) Ill Riet 66 D the Instreamecosystem. biotahabitat must must be be in inlargely a largely modified modified or better or better condition. condition to support
suitableFlows to must support be inthe largely ecosystem modified functions. or better condition. Low flows must be Instream Habitat Integrity category a D (a 42) Water quality: Fish ecological category:a D (a 42)
Macro -invertebrate ecological category: a D (a 42)
Instream Ecostatus category a D (a 42)
Hydrological category a D (a 42)
Salt concentrations must be at levels that do not threaten the ecosystem and Water Quality category:a D (a 42) are Dissolvedsuitable for organic users. carbon concentrations must not cause the ecosystem to 42
No. 3900 1 IUAILIA Class RiverRiver RU REC RQO Numerical Limits Thehealth.become river water unsustainable.unsustainable must not be toxic to aquatic organisms or be a threat to human This gazette isalsoavailable freeonlineat www.gpwonline.co.za UJ. Taaibosspruit Ill 67 D Instreamconsumption).Pathogens habitat must mustbe at belevels in a safe largely for modifiedhuman use or better(excluding condition for direct to support Instream Habitat Integrity category z D (z 42)Fish Taaibosspruit the ecosystem.lnstream biota must be in largely modified or better ecological category:a D (z 42)Macro- invertebrate GO becondition.Flows suitable to support must bethe in ecosystem largely modified functions.Water or better conditionquality- Salt Low flows must categoryecological z category:D (z 42)Hydrological z D (z 42)Instream category Ecostatus z D (z VERNMENT GAZETTE,17 JULY 2015 UL. Mooi River Ill Mooi River 71 D Instreamthreatsuitableconcentrations to forhuman habitat users.The must health. must be riverbe at inlevels water a largely thatmust domodified not not be threaten toxic or better to theaquatic condition ecosystem organisms to andsupport orare be a 42)WaterInstream Quality Habitat category:a Integrity D category (2 42) z D (z 42) Instreamthe ecosystem. biota must be in largely modified or better condition. MacroFish -invertebrate ecological category:z ecological D category: (z 42) z D (z 42) WatersuitableFlows mustquality: to support be in largely the ecosystem modified orfunctions. better condition. Low flows must be Instream Ecostatus category z D (z 42) SaltotherPathogensThe concentrationsnutrient users must concentrations be mustat levels be mustat safe levels befor decreasedthathuman do notuse forthreaten (excluding ecosystem the forecosystem condition direct andand WaterHydrological Quality category:a category D z (zD (z42) 42) health.Theare suitable river Uranium water for usersmust must not be beat acceptabletoxic to aquatic levels organisms or be a threat to human UJ.UL. TaaibosspruitMooi River IllIll Mooi RiverTaaibosspruit 6773 DD Instreambeconsumption).condition.Flowsthe suitable ecosystem.lnstream habitat to support must must be thebe biotain inecosystem largely a mustlargely modified be functions.Watermodified in largely or betteror modified better condition. quality: condition or better The Low tonutrient flows support must categoryecologicalInstream z category:a category:D Habitat(z 42)Hydrological zIntegrity D D (z (z 42)Macro- 42)Instream category category invertebrate z EcostatusD (z 42)Fish z D (2 UM. Vaal River Ill VAAL 75 C the Instreamarecondition.FlowsSaltconcentrationsecosystem.lnstream suitable concentrations habitat for users.must must must must biota bebe be decreasedin bein must largely a at moderately levels be modified infor thatlargely ecosystem modifieddo or modifiednot better threaten conditionor condition. betteror better the condition and ecosystem Low other flows to users. support and must 42)Water Quality category:a D (z 42) Damreach to from C23L Vaal Instreamhabitatthe ecosystem. conditions biota must Water to lessbe hyacinth in than moderately moderately should modifiedbe atmodified. levels or betterthat do condition. not lower The instream coverageWaterIntegrityInstream hyacinth should category. Habitat distribution be alignedIntegrity and to category the water Instream surface2 C (z Habitat 62) be suitable to support the ecosystem functions.Water quality: Salt Instream Habitat Integrity category s D (s 42)Fish ecological category:a D (s 42)Macro- invertebrate ecological category: s D (s 42)Instream Ecostatus category s D (s 42)Hydrological category a D (a concentrations must be at levels that do not threaten the ecosystem and are 42)Water Quality category:a D (a 42) UL. Mooi River Ill Mooi River 71 D threatInstreamsuitable to human for habitat users.The health. must riverbe in water a largely must modified not be toxic or better to aquatic condition organisms to support or be a the ecosystem.
Instream biota must be in largely modified or better condition.
Flows must be in largely modified or better condition. Low flows must be suitable to support the ecosystem functions. FishInstream ecological Habitat category:a Integrity D (acategory 42) a D (a 42) Water quality:
HydrologicalMacroInstream -invertebrate Ecostatuscategory ecological acategory D (s 42) category: a D (s 42) a D (a 42)
The nutrient concentrations must be decreased for ecosystem condition and Water Quality category:2 D (s 42) other users.
Salt concentrations must be at levels that do not threaten the ecosystem and are suitable for users.
The river water must not be toxic to aquatic organisms or be a threat to human UL. Mooi River Ill Mooi River 73 D Instreamhealth. Uranium habitat mustmust bebe at in acceptablea largely modified levels or better condition to support the ecosystem.Instream biota must be in largely modified or better condition.Flows must be in largely modified or better condition. Low flows must be suitable to support the ecosystem functions.Water quality: The nutrient ecologicalInstream category: Habitat IntegrityD (s 42)Macro- category invertebrate a D (a 42)Fish ecological category: a D (a 42)Instream Ecostatus category a D (a 42)Hydrological category a D (a concentrations must be decreased for ecosystem condition and other users. 42)Water Quality category:a D (a 42) Salt concentrations must be at levels that do not threaten the ecosystem and UM. Vaal River are suitable for users. reach from Vaal Dam to C23L Ill VAAL 75 C Instream habitat must be in a moderately modified or better condition to support the ecosystem. Water hyacinth should be at levels that do not lower instream habitat conditions to less than moderately modified.
Instream biota must be in moderately modified or better condition. The WaterInstream hyacinth Habitat distribution Integrity and category water surfacea C (s 62) coverageIntegrity should category. be aligned to the Instream Habitat
IUAIUA ClassClass River River RU REC RQORHO Numerical Limits sufficientFlowsrequirements must to besupport of in fish moderately speciesecosystem of modified ecological functions. or betterimportance condition. should High be flowsprovided must for. be MacroFish ecological -invertebrate category:category, ecological az CC (a (zcategory: 62) z C (z 62) This gazette isalsoavailable freeonlineat www.gpwonline.co.za otherTheWater nutrient users quality: concentrations must be decreased for ecosystem condition and HydrologicalInstream Ecostatus category category z C (z a 62)C (>_ 62) sufficientfunctionSalt concentrations and to support are detrimental must ecosystem be atto levelsfish functions. species that do and not are threaten suitable the for ecosystem users. MacroWater Quality-invertebrate category: ecological z C (z category:62) a C (a 62) STAATSKOERANT, Theconsumption).WaterPathogens nutrient quality: must concentrations be at levels must safe befor decreasedhuman use for (excluding ecosystem for condition direct and HydrologicalInstream Ecostatus category category a C (a a 62) C (a 62) 1 other users. Water Quality category: a C (a 62) 7 JULIE2015
Salt concentrations must be at levels that do not threaten the ecosystem function and are detrimental to fish species and are suitable for users. No. 3900 1
43 Pathogens must be at levels safe for human use (excluding for direct consumption). 44
No. 3900 1 IUATable 6: Resource Quality Objectives for RIVER RIPARIAN ZONE HABITAT in the Upper Vaal Class River RU REC RQO Numerical Limits II VAAL 1 B The riparian zone must be in a largely natural condition Riparian Zone Habitat Integrity category a B (z 82) This gazette isalsoavailable freeonlineat www.gpwonline.co.za UA. Vaal River forrequirementsRiparian vegetation of plant must species be in of a ecological largely natural importance condition. must The be provided Riparian ecostatus category: z B (z 82) Grooldraaiupstream Dam of Hydrological category a B (a 82) GO
Low and high flows must be suitable to maintain the riparian zone habitat VERNMENT GAZETTE,17 JULY 2015 II VAAL 8 B/C andThefor ecosystem mustriparian support zone condition. propertymust be inand a betterrecreational than moderately values. modified condition Riparian Zone Habitat Integrity category a B/C (z 78) IUAupstreamUA. Vaal Riverof Class River RU REC becondition.Riparian provided vegetation The for requirements must be ofin planta better species than ofmoderately ecological modified importance must RQO HydrologicalRiparian ecostatus category? category:a B/C (z B/C 78) (a 78) Numerical Limits UA.Grootdraai Vaal River Dam forLow ecosystem and high flows condition. must be suitable to maintain the riparian zone habitat UA. Vaal River II VAAL 10 B/C condition.RiparianThe riparian vegetation The zone requirements must must be be in of ina plantabetter better species than than moderately ofmoderately ecological modified modified importance condition. must Riparian ecostatusZone Habitat category:a Integrity B/C category (z 78) a B/C (z 78) Grootdraaiupstream of Dam II VAAL 1 B LowThebe provided riparianand high for. zone flows must must be be in suitable a largely to maintainnatural condition. the riparian zone habitat Hydrological category? B/C (z 78) UB. Klip River (Free II KLIP 21 C/D Thefor ecosystem riparian zone condition. must be in a better than largely modified condition to Riparian Zone Habitat Integrity category a C/D (a 58) GrootdraaiState)upstream Dam of Ripariancontrol negative vegetation influences must be on in the better river than system largely modified condition. HydrologicalRiparian ecostatus category category: a C/D (aa C/D58) (z 58) UC2. Wilge River and II WILGE 35 C TheLow riparianand high zone flows must must be be in in a a moderately a better than modified largely conditionmodified condition.or better. Riparian Zone Habitat Integrity category a C (a 62) tributaries LowRiparian and vegetationhigh flows must be in a moderately modified condition or better. HydrologicalRiparian ecostatus category category: a C (a 62)a C (5 62) Riparian vegetation must be in a largely natural condition. The requirements of plant species of ecological importance must be provided for.
Low and high flows must be suitable to maintain the riparian zone habitat Riparian Zone Habitat Integrity category a B (a 82) for ecosystem condition. Riparian ecostatus category: a B (a 82)
Hydrological category a B (a 82) UA. Vaal River upstream of II VAAL 8 B/C The riparian zone must be in a better than moderately modified condition Grootdraai Dam and must support property and recreational values.
Riparian vegetation must be in a better than moderately modified condition. The requirements of plant species of ecological importance must be provided for.
Low and high flows must be suitable to maintain the riparian zone habitat Riparian Zone Habitat Integrity category a B/C (a 78) for ecosystem condition. Riparian ecostatus category:a B/C (a 78)
Hydrological categorya B/C (a 78) UA. Vaal River upstream of Il VAAL 10 B/C The riparian zone must be in a better than moderately modified condition. Grootdraai Dam Riparian vegetation must be in a better than moderately modified condition. The requirements of plant species of ecological importance must be provided for.
Low and high flows must be suitable to maintain the riparian zone habitat Riparian Zone Habitat Integrity category a B/C (a 78) for ecosystem condition. Riparian ecostatus category:a B/C (a 78)
Hydrological categoryz B/C (a 78) UB. Klip River (Free State) II KLIP 21 C/D The riparian zone must be in a better than largely modified condition to control negative influences on the river system.
Riparian vegetation must be in better than largely modified condition. Riparian Zone Habitat Integrity category a C/D (a 58) Low and high flows must be in a a better than largely modified condition. Riparian ecostatus category: a C/D (a 58)
Hydrological category a C/D (a 58) tributariesUC2. Wilge River and II WILGE 35 C The riparian zone must be in a moderately modified condition or better.
Riparian vegetation must be in a moderately modified condition or better.
Low and high flows must be in a moderately modified condition or better. Riparian Zone Habitat Integrity category a C (a 62)
Riparian ecostatus category: a C (a 62)
Hydrological category a C (a 62)
WAIUA Class River RU REC ROO Numerical Limits RiverUC3. Lower Wilge II LOWER WILGE 40 C/D RipariancontrolThe riparian negative vegetation zone influences must must be be onin in athe betterbetter river than thansystem largely largely modified modified condition. condition to Riparian ecostatusZone Habitat category: Integrity 2 C/Dcategory (2 58) 2 C/D (5 58) This gazette isalsoavailable freeonlineat www.gpwonline.co.za ecosystemFlows must condition. be suitable Low to flowsmaintain must the mimic riparian the zonethe natural habitat flow for patterns Hydrological category 2 C/D (5 58) RiverUD Liebenbergsvlei IIIll RiverLOWERLiebenbergsvlei WILGE 4045 C/D B The riparian zone must bebe inin aa largelybetter thannatural largely condition. modified condition to Riparian Zone Habitat Integrity category 2 B (2 82) River Riparian vegetation must be in a largely natural condition. The Riparian ecostatus category: 2 B (5 82) STAATSKOERANT, forLowmustrequirements ecosystem and be provided high offlows condition. plant for must species be suitable and assemblages to maintain ofthe ecological riparian zone importance habitat Hydrological category 2 B (2 82) UE. Waterval River III Waterval River 47 D RipariancontrolThe riparian negative vegetation zone influences must must be be inon ina the alargely largely river modifiedsystem. modified or or better better condition. condition. Riparian ecostatusZone Habitat category: Integrity 2 Dcategory (2 42) 2 D (2 42) 1 Low and high flows must be in a largely modified or better condition. Hydrological category 2 D (2 42) 7 JULIE2015 UE. Waterval River Ill Waterval River 50 D TheRiparian riparian vegetationzone must mustbe in bea largely in a largely modified modified or better or better condition. condition. Riparian ecostatusZone Habitat category: Integrity 2 Dcategory (2 42) 2 D (2 42)
Low and high flows must be in a largely modified or better condition. UG. Vaal River from II VAAL 58 C The riparian zone must be in a moderately modified condition or better. Hydrological category 2 D (2 42) VaalGrootdraai Dam Dam to LowRiparian and vegetationhigh flows must be in a moderately modified condition or better. HydrologicalRiparian ecostatusZone category Habitat category: Integrity2 C (2 2 62) Ccategory (2 62) 2 C (2 62) RiverUH Suikerbosrand II RiverSuikerbosrand 60 B/C condition.RiparianThe riparian vegetation The zone requirements must must be be in of ina plantbettera better species than than largelymoderately ofmoderately ecological modified modified modified importance condition. condition. must Riparian ecostatusZone Habitat category:5 Integrity BIC category (2 78) 2 B/C (2 78) forLowbe providedecosystem and high for flows condition. must be suitable to maintain the riparian zone habitat Hydrological categorys B/C (2 78) No. 3900 1
45 Flows must be suitable to maintain the riparian zone habitat for Riparian Zone Habitat Integrity category a C/D (a 58) ecosystem condition. Low flows must mimic the the natural flow patterns Riparian ecostatus category: a C/D (a 58)
Hydrological category a C/D (a 58) UD. Liebenbergsvlei River Ill Liebenbergsvlei River 45 B The riparian zone must be in a largely natural condition.
Riparian vegetation must be in a largely natural condition. The requirements of plant species and assemblages of ecological importance must be provided for.
Low and high flows must be suitable to maintain the riparian zone habitat Riparian Zone Habitat Integrity category a B (a 82) for ecosystem condition. Riparian ecostatus category: a B (a 82)
Hydrological category a B (a 82) UE. Waterval River Ill Waterval River 47 D The riparian zone must be in a largely modified or better condition.
Riparian vegetation must be in a largely modified or better condition.
Low and high flows must be in a largely modified or better condition. Riparian Zone Habitat Integrity category a D (a 42)
Riparian ecostatus category: a D (a 42)
UE. Waterval River Ill Waterval River 50 D The riparian zone must be in a largely modified or better condition. Hydrological category a D (a 42)
Riparian vegetation must be in a largely modified or better condition.
Low and high flows must be in a largely modified or better condition. Riparian Zone Habitat Integrity category a D (a 42)
Riparian ecostatus category: a D (a 42)
UG. Vaal River from Hydrological category a D (a 42) VaalGrootdraai Dam Dam to II VAAL 58 C The riparian zone must be in a moderately modified condition or better.
Riparian vegetation must be in a moderately modified condition or better.
Low and high flows must be in a moderately modified condition or better. Riparian Zone Habitat Integrity category a C (a 62)
Riparian ecostatus category: a C (a 62)
UH. Suikerbosrand Hydrological category a C (a 62) River Il Suikerbosrand River 60 B/C The riparian zone must be in a better than moderately modified condition.
Riparian vegetation must be in a better than moderately modified condition. The requirements of plant species of ecological importance must be provided for.
Low and high flows must be suitable to maintain the riparian zone habitat Riparian Zone Habitat Integrity category a B/C (a 78) for ecosystem condition. Riparian ecostatus category:a B/C (a 78)
Hydrological categorya B/C (a 78) 46
No. 3900 1 IUAILIA Class River RU REC RQO NumericalNumerical Limits Limits UH. Suikerbosrand Il Blesbokspruit 62 D The riparian zone must be in a largely modified or better condition. Riparian Zone Habitat Integrity category s D (s 42) This gazette isalsoavailable freeonlineat www.gpwonline.co.za River LowRiparian and highvegetation flows mustmust be be in in a a largely largely modified modified or or better better condition. condition. HydrologicalRiparian ecostatus category category: s D (s a 42)D (s 42) 65 D GO UI. Klip River Ill Klip River The riparian zone must be in a largely modified or better condition. Riparian Zone Habitat Integrity category a D (s 42) VERNMENT GAZETTE,17 JULY 2015 River(Gauteng) II Blesbokspruit 62 D TheLowRiparian riparian and highvegetationzone flows must mustmustbe in be bea largelyin in a a largely largely modified modified modified or better or or better better condition. condition condition. HydrologicalRiparian ecostatus category category. s D (a a 42)D (2 42) (Gauteng)UI. Klip River Ill Riet 66 D TheRiparian riparian vegetationzone must mustbe in bea largely in a largely modified modified or better or better condition. condition. Riparian ecostatusZone Habitat category: Integrity s Dcategory (s 42) a D (s 42) UJ Taaibosspruit Ill 67 D TheLow riparian and highzone flows must must be in be a largelyin a largely modified modified or better or better condition. condition Hydrological category a D (a 42) Taaibosspruit LowRiparian and highvegetation flows mustmust be be in in a a largely largely modified modified or or better better condition. condition. HydrologicalRiparian ecostatusZone category Habitat category: Integrity s D (s a 42) Dcategory (z 42) s D (s 42) UL Mooi River III Mooi River 71 D RiparianTheRiparian riparian vegetation vegetationzone must must mustbe be in inbea alargely in largely a largely modified modified modified or or better better or better condition. condition. condition. Riparian ecostatusZone Habitat category: Integrity s Dcategory (s 42) s D (s 42) UL. Mooi River Ill Mooi River 73 D TheLow riparian and highzone flows must must be in be a largelyin a largely modified modified or better or better condition. condition Hydrological category s D (s 42) LowRiparian and highvegetation flows mustmust be be in in a a largely largely modified modified or or better better condition. condition. HydrologicalRiparian ecostatusZone category Habitat category. Integrity a D (a s 42)Dcategory (s 42) s D (s 42) Low and high flows must be in a largely modified or better condition. Riparian Zone Habitat Integrity category a D (a 42)
Riparian ecostatus category: a D (a 42)
UI. Klip River Hydrological category a D (a 42) (Gauteng) Ill Klip River 65 D TheRiparian riparian vegetationzone must mustbe in bea largely in a largely modified modified or better or better condition. condition.
Low and high flows must be in a largely modified or better condition. Riparian Zone Habitat Integrity category a D (a 42)
Riparian ecostatus category: a D (a 42)
UI. Klip River Hydrological category a D (a 42) (Gauteng) Ill Riet 66 D TheRiparian riparian vegetationzone must mustbe in bea largely in a largely modified modified or better or better condition. condition.
Low and high flows must be in a largely modified or better condition. Riparian Zone Habitat Integrity category a D (a 42)
RiparianHydrological ecostatus category category: a,D a D(a (a 42) 42) UJ. Taaibosspruit Ill Taaibosspruit 67 D TheRiparian riparian vegetationzone must mustbe in bea largely in a largely modified modified or better or better condition. condition.
Low and high flows must be in a largely modified or better condition. Riparian Zone Habitat Integrity category a D (a 42)
Riparian ecostatus category: a D (a 42)
Hydrological category a D (a 42) UL. Mooi River III Mooi River 71 D TheRiparian riparian vegetationzone must mustbe in bea largely in a largely modified modified or better or better condition. condition.
Low and high flows must be in a largely modified or better condition. RiparianRiparian ecostatus Zone Habitat category: Integrity a D (a category 42) a D (a 42)
Hydrological category a D (a 42) UL. Mooi River Ill Mooi River 73 D TheRiparian riparian vegetationzone must mustbe in bea largely in a largely modified modified or better or better condition. condition.
Low and high flows must be in a largely modified or better condition. Riparian Zone Habitat Integrity category a D (a 42)
Riparian ecostatus category: a D (a 42)
Hydrological category a D (a 42)
IUA Class RiverRiver RU REC RQO Numerical Limits C23LfromUM. VaalVaal RiverDam toreach III VAAL 75 C RiparianThe riparian vegetation zone must must be be in in a amoderately moderately modified modified condition condition or or better. better Riparian ecostatusZone Habitat category: Integrity 2 Ccategory (2 62) 2 C (2 62)
This gazette isalsoavailable freeonlineat www.gpwonline.co.za Low and high flows must be in a moderately modified condition or better. Hydrological category 2 C (2 62)
from Vaal Dam to STAATSKOERANT, Ill VAAL 75 C The riparian zone must be in a moderately modified condition or better.
C23L Riparian vegetation must be in a moderately modified condition or better. 1 7 JULIE2015
Low and high flows must be in a moderately modified condition or better. Riparian Zone Habitat Integrity category z C (a 62) No. 3900 1
47 Riparian ecostatus category: z C (z 62)
Hydrological category z C (z 62) 48
No. 3900 1 Table 7: ResourceWA Quality Objectives for DAM WATER QUANTITY in the Upper Vaal Dams RU Component CompSub onent RQO Indicator/ measure NumericalNumerical Limits Limits Drought flows This gazette isalsoavailable freeonlineat www.gpwonline.co.za NovOct(Percentile)Maintenance low flows (m3 /s) 0.0990.049 (40)(50) 0.0150.007(Percentile)(m3 /s) (99) Amersfoort Dam Dam levels must be sufficient for release Flow releases: JanDec 0.1300.143 (50) (40) 0.030 (99) (99) GO 29 °53'129(27°4'1"S; °53'1(27°4'1"S; "E) "E) RU4RU4 for domesticsurroundingfor domestic supply smallsupply to irrigation irrigationAmersfoort to Amersfoort areasareas and and the the VMARSkulpspruit = 12.035x10em3, in C11E, MarFeb 0.1960.131 (40) (40) 0.0150.0410.045 (99) VERNMENT GAZETTE,17 JULY 2015 PES =C AprJulJunMay 0.0310.0350.0510.087 (40) 0.0000.012 (99) Low Flows Skulpspruit in C11E, AugMaintenanceSep low flows (m3 /s) 0.0270.024 (50) (m3Drought0.0080.000 /s) (99) flows Grootdraai Dam Dam levels must remain sufficient to VaalFlow EWR2releases: in C11 M JanOctDecNov(Percentile) 0.7 1.351.21(50) (50) (50) (50) 0.3090.2810.2190.116(Percentile) (99) UA 29 °17'41.6(26 °55'9.2 "E) "S; RU10 Quantity functionasprovide well as fordownstream. releasesmunicipal for and ecosystem industrial use, VMARCl(ReleasesREC R002) =C = 457.7x10category*.12.035x106m3, from a m3 AprMayMarFeb 0.8 11.31.75(50) (50) (50) (50) 0.000.1940.2850.422 (99) SepAugJulJunMaintenance low flows (m3 /s) 0.60.550.7 (60)(50) (60) 0.0710.00 (99) _ toDam protect levels ecosystem must be sufficient function forand releases for Oct 0.125(Percentile)flowsMaintenance (m(50) /s) low 0.011(Percentile)(/mflowsDrought s) (99) 0.114(Percentile)highMaintenance flows (99)Percentile (m3/s) Sterkfontein Dam (28 °23'15 "S;29 °1'1 "E) and 34RU33 Flows catchment,Themunicipal dam isand thefilled industrial increased from the use damThukela downstream. levels from 40.089x10am°-,C81D,NuwejaarspruitFlowpES =C releases: VMAR == in Jan(Percentile)FebDecNov 0.4120.3240.2520.215 (50)(40) 0.0980.1340.0450.042 (99) 0.5850.115Drought0.238 (30)(99)(40) flows (99) functiontheythe transfer support within must the the protection be dam. maintained of ecosystem such that REC =C /D JunMayAprMar 0.0750.1390.246 (50) (50) 0.0310.0450.0420.146 (99) 0.000.0560.206 (90)(70) Jul 0.053 (50) 0.007 (99) (m30.00 /s) (Percentile) JanDecNovOct 0.1430.1300.0990.049 (40)(50) 0.0450.0300.0150.007 (99) AprMayMarFeb 0.1310.1960.0510.087 (40) (40) 0.0000.0120.0150.041 (99) AugSepJulJun 0.0270.0240.0310.035 (50)(40) 0.0080.000 (99) Grootdraai 29Dam °1741(26 °55'9.2 6 "E) "S; RU10 Dam levels must remain sufficient to provide for municipal and industrial use, functionas well downstream. as releases for ecosystem Flow releases: Vaal EWR2 in C11 M VMAR = 457.7x106 m3 REC =C category *. (Releases from Maintenance low flows (m3 /s) Cl R002) (Percentile) Drought flows (m3 /s) JanDecNovOct 1.351.210.7 (50) (50) (50) 0.3090.2810.2190.116(Percentile) (99) AprMayMarFeb 0.811.31.75 (50) (50) (50) 0.000.1940.2850.422 (99) AugSepJulJun 0.60.550.7 (60)(50) (60) 0.0710.00 (99) to protectDam levels ecosystem must befunction sufficient and for for releases Sterkfontein Dam (28 °23'15 "S;29 °1'1 "E) and 34RU33 Flows theThe catchment,municipaltransfer dam is filledmust and the from beindustrial increased maintained the Thukela use dam downstream.such levels that from they support the protection of ecosystem Flow releases: function within the dam. Nuwejaarspruit in C81D, VMAR == 40.089x106m3, flows(Percentile)Maintenance (m3/s) low Drought REC =C /D flows (/m s) (Percentile) Maintenance high flows (m3 /s)
Oct 0.125 (50) 0.011 (99) 0.114 (99) (Percentile) _ MarFebJanDecNov 0.3680.4120.3240.2520.215 (50)(40) 0.1460.0980.1340.0450.042 (99) 0.238 (40) 0.2060.5850.115 (70)(30)(99)(60) AprJulJunMay 0.0530.0750.1390.246 (50) 0.0070.0310.0450.042 (99) 0.056 (90) 0.00
WAWA Dams RU ComponentComponent ComponentCompSub Sub onent RQOROO Indicator/Indicator / measuremeasure 0.0480.048 (50) (50) Numerical Limits 0.015 (99) 0.00 AugMaintenanceSep low flows (m3 /s) 0.083 (50) 0.035 (99) 0.070 (60) (Percentile)(m3Drought0 -070 /s) (60) flows This gazette isalsoavailable freeonlineat www.gpwonline.co.za NovOct(Percentile) 0.1770.12 (60) (60) 0.0660.05 (99) (99) UH (26Balfour °34'25 Dam "S; RU60 Quantity Flows municipalsufficientDam levels levelsand must industrial to be provide maintained use releases as wellat foras RECVMARVaalFlow EWR9=Creleases: = category'.31.31x10 in C21C m3 c FebJanDec 0.2310.1820.147 (60) 0.0790.0660.06 (99) (99) 28 °30'37 "E) downstream.protection of ecosystem function close(Daily by) - no flow gauge MayAprMar 0.1430.160.18 (60) (60) 0.0590.0640.066 (99) STAATSKOERANT, Dam levels must be maintained at SepAugJulJun 0.0750.0650.080.123 (70) (70)(60) 0.040.050.057 (99) (99) (26 °34'2528 °30'37 "S; "E) RU60 Quantity Flows NovOct(Percentile)Maintenance low flows (m3 /s) 0.12 (70) 0.106(Percentile)(m3Drought /s) (99) flows Flow releases: 0.12 (70) 0.109 (99) 1 UL Klerkskraal Dam (26 °15'9 "S; RU69 Quantity Flows atDam levels levels sufficient must therefore for irrigation be maintained releases VMARC23GVaal RE = -EWR237.7x106m3 in FebJanDec 0.1550.1280.12 (70) (60) 0.1240.1080.106 (99) 7 JULIE2015 27 °9'40 "E) sufficientfunctionas well as downstream. levels for protection to provide of releasesecosystem for monitoredfromREC Klerkskraal=D' (Releases by C2H006.) Dam JunMayAprMar 0.1540.160.153 (60) (60)(50) 0.1180.1160.120.115 (99) (99) AugJul 0.1370.1430.148 (70)(60) 0.1130.112 (99) MaintenanceSep low flows flowsDrought a Vaal Barrage levelsLevelsprotectionmunicipal for must municipal andof beecosystem industrial maintained and industrialfunction at sufficient use as well as Flow releases: DecNovOct(m3 /s (Percentile) 9.368.566.16 (95)(90) 4.303.592.55(percentile) (99) UM (26 °4553 "S;27°41'3"E RU75 Quantity Flows downstream.forreleases the as well as to provide releases protectionp of ecosystem y stem function Flow253.9x106m',VMARVaal Riverreleases: = 2 in C236,REC =C AprMarFebJan 8.6710.9713.6110.51 (85) (90)(85)(95) 3.764.996.154.79 (99) downstream. AugJulJunMay 4.294.584.986.19 (95)(90)(85) 2.152.272.452.96 (99) _ No. 3900 1
VMARVaal EWR9 = 31.31x10 in C21C m3 a 49 REC =C category*. (Daily - no flow gauge Maintenance low flows (m3 /s) close by) (Percentile) Drought flows (m3 /s) (Percentile) JanDecNovOct 0.120.1820.1470.177 (60) (60) ( ) 0.0660.060.05 (99)99 (99) ( ) AprMayMarFeb 0.1430.160.180.231 (60) (60) 0.0590.0640.0660.079 (99) AugSepJulJun 0.0750.0650.080.123 (70) (70)(60) 0.040.050.057 (99) (99) UL Klerkskraal Dam (26 27°15'9"S; °9'40 "E) RU69 Quantity Flows Dam levels must therefore be maintained at levels sufficient for irrigation releases as well as for protection of ecosystem Flow releases: function downstream. Vaal RE -EWR2 in C23G VMAR = 37.7x106m3 REC =D *. (Releases from Klerkskraal Dam Maintenance low flows (m3 /s) monitored by C211006,) (Percentile) Drought flows (m3 /s) DecNovOct 0.12 (70) 0.1060.109(Percentile) (99) AprMarFebJan 0.153 (50) 0.1540.160.1550.128`(60) (60) (60) 0.1160.120.1150.1240.108 (99) (99) SepAugJulJunMay 0.1370.1430.1460.154 (70)(60) 0.1130.1120.118 (99) UM Vaal Barrage (26 °45'53 "S;27 °41'3 "E) RU75 Quantity Flows Levels must be maintained at sufficient levels for municipal and industrial releases as well as to provide releases for the protection of ecosystem function downstream. Flow releases' Vaal River in C236, VMAR =2 Maintenance low flows 253.9x106m3, REC =C (m3 /s (Percentile) Drought flows (mer DecNovOct 8.566.16 (90)(95) 3.592.55(Percentile) (99) AprFebMarJan 8.6710.9713.6110.519.36 (85)(95) (90)(85)(95) 3.764.996.154.794.30 (99) AugJulJunMay 4.294.584.986.19 (90)(95)(85) 2.1'5`(99)2.272.452.96 (99) 50
No. 3900 1 IUAILIA Dams RU Sub RQO Indicator!Indicator/ measure Numerical Limits 1 Dams Component ComponentCompSub onent 1 Dam levels must be maintained such that Sep(m3/s)MaintenanceSep (Percentile) low flows 4.69 (95) (m'!s)flowsDrought2.33 (99) (m3/s)High flows
This gazette isalsoavailable freeonlineat www.gpwonline.co.za (Percentile) Vaal Dam theydownstream.protectionand are irrigation sufficient of ecosystemreleases for municipal,municipal. as function well industrial as downstreamVaalFlow EWR4releases inVaal C22F Dam JanDecNovOct 17.6516.0213.05 (50)(70) 5.985.585.043.44 (90)(99)(99) 15 - 2525 (26 °52'5728 66'58"S;°6'58 6E)"E) RU74 RECMAR =C= 1977x10 category'. "m3 Feb 17.3818.23 (50) 6.63 (95) 4015 - 9625 GO During the wet season dam inflows and ClDam(Releases H122.) monitored from byVaal AprMayMar 11.0113.9516.6 (50) (60)(40) 4.144.725.58 (95)(99) 15 - 25 VERNMENT GAZETTE,17 JULY 2015 protectionecosystemuse,arelevels sufficient and must release of functionbe ecosystemfor maintained releases for downstream the protectionfunction for such intended that of they Flow releases: AugSepJulJun 9.379.5410.03 (95) (70) 3.984.14 (99) Vaal EWR4 in C22F downstream Vaal Dam MAR = 1977x106m3 REC =C category*. (Releases from Vaal Dam monitored by Maintenance low flows C1 H122.) (m3 /s (Percentile) Drought flows (m3 /s) (Percentile) High flows (m3 /s) downstream. DecNovOct 17.6516.0213.05 (50)(70) 5.58 (99) 5.043.44 (99)(99) 15 - 2525 During the wet season dam inflows and MarFebJan 16.617.3818.23 (50) (50) 5.98 (90) 5.586.63 (95) 1540 - 259625 levels must be maintained such that they are sufficient for releases for intended use, and release for the protection of AprMay 11.0113.95 (40)(60) 4.144.72 (99) ecosystem function downstream. AugSepJulJun 9.379.5410.03 (95) (70) 3.984.14 (99)
Table 8: Resource QualityIUA ObjectivesObjectives forfor DAMDAM WATERWATER QUALITY QUALITY in in the the Upper Upper Vaal Vaal Dams RURU Component Component Sub RQORQO measureIndicator/ Numerical Limits 95th Percentile This gazette isalsoavailable freeonlineat www.gpwonline.co.za Grootdraai Dam Component Phosphate(PO,) mg/Ls 0.025 P 0.0085 UA Vrede/Thembalihle Dam 29 °1741.6(26 °55'9.2 "E) "S. RU10 Quality Nutrients The system must be maintained in a mesotrophic state or better. Phosphate(PO.)NitriteNitrate (NO,)(NO3) & 5mg 1.000.025 /L N P 0.20.099 UB Gerrands29(27 °11'45.1 °26'21.8 Dam "E) "S; RU20 Quality Nutrients The system must be maintained in a mesotrophic state or better. Phosphate(PO,)measureNitriteNitrate (NO2)(NO3) & ' mg/LNumerical5 1.001.0 N Limits 95th0.0060.4 Percentile STAATSKOERANT, UA Grootdraai 28°(28Dam 17'°16'55.329 30°17'41.6(26 -6 °55'9.2 "E)"S; "E) "S; RU43RU10 Quality Nutrients TheNutrients system must must be bemaintained maintained at mesotrophicin a mesotrophic levels. state or better. Phosphate(PO,)NitriteNitratePhosphate(PO4) (NO7)(NO3) & ' 5 0.025smg/L5 0.025100 NP . P 0.0240.0250.0085 UD SaulspoortLoch Dam Athlone (Sol Dam 28(28 °18'31 °15'0.9 4 "S; "E) Quality Nutrients retain theNutrients recreational must bevalue maintained of the dam at mesotrophic levels so as to Phosphate(PO,)NitriteNitrate (NOZ)(NO3) & 5mg/Ls 1.000.025 NP 0.0220.05 Nutrients must be maintained at mesotrophic levels to protect the mg/L P 1 28Plaatjie °21'46.9(28 °13'1.5 Dam) "E) "S; RU41 ecosystem and also the fitness for use. Phosphate(PO,)NitriteNitrate (NO2)(NO3) & C5 1.001 smg/L50 0.0251.00 N 0.0310.0990.2 7 JULIE2015 ULUB Vrede(ThembalihleKlipdrift Dam (26 °37'0 Dam "S; (27 °26'21.829 °11'45.127 "S; °17'52 "E) "E) RU20RU72 Quality Nutrients Theand maintainedsystem mustis currently in be a mesotrophicmaintained in a eutrophic in state a mesotrophic state and must state be or improved better. Phosphate(PO,)NitritePhosphate(PO4)Nitrate (NO2)(NO3)(NW &* 5mgsmg/L 1.000.025 /L PN 0.0060.11 Boskop Dam (26 °33'42 "S; 27 °6'41 "E) RU73 isNutrient in a mesotrophic concentrations state must be maintained such that the system NitriteNitrate (NO2)(NO3) & mg/Ls 1.00 NP 0.3 Vaal Barrage (26 °45'53 "S; 27 °41'3 "E) maintainedThe system inis acurrently mesotrophic eutrophic state. and must be improved and NitriteNitratePhosphate(PO.) (NO2) (NO,) & mg/L5 1.000.025 NP 0.22.40.295 UM Vaal Dam (26 °52'57 "S: 28 °6'58 "E) RU75 Quality Nutrients state.The system must be improved and managed in a mesotrophic NitriteNitratePhosphate(PO,) (NO2)(NO3) & mg5mg/L 1.000.025 /L PN 0.20.021 Nitrite (NO2) * 5 1.00 No. 3900 1
51 Gerrands(28 °16'55.3 Dam "S; Nutrients must be maintained at mesotrophic levels. Phosphate(PO4) 5mg 0.025 /L N 0.4 UD 28 °17'30.6 "E) RU43 Quality Nutrients Nitrate (NO3) & mg /L P 0.006 Nitrite (NO2) * 5 1.00 Loch Athlone Dam Phosphate(PO4) mg /L N 0.025 28°18'31.4"E)(28 °15'0.9 "S; 9 S, retain theNutrients recreational must bevalue maintained of the dam. at mesotrophic levels so as to * 5 0.025 Nitrate (NO3) & mg /L P 0.024 Nitrite (NO2) * 5 1.00 Saulspoort Dam (Sol Plaatjie Dam) mg /L N 0,05 Phosphate(PO4) 28 °21'46.9(28 °131.5 "E) "S; RU41 ecosystemNutrients and also must the be fitness maintained for use. at mesotrophic levels to protect the * 5 0.025 Nitrate (NO3) & mg /L P 0.022 Nitrite (NO2) * 5 1.00mg /L N 0.2 UL Klipdrift Dam (26 °37'0 "S; 27 °17'52 "E) RU72 Quality Nutrients The system is currently in a eutrophic state and must be improved and maintained in mesotrophic state. NitratePhosphate(PO4) (NO3) & 5 0.025mg /L P 0.031 5 1.00 Boskop Dam (26 °33'42 "S; 27°6'41"E) RU73 Nutrient concentrations must be maintained such that the system Nitrite (NO2) * mg /L N 0.11 is in a mesotrophic state Phosphate(PO4) Nitrate* (NO3) & 5 0.025mg /L P 0.006 Nitrite (NO2) * 5 1.00mg /L N 0.3 UM Vaal Barrage (26 °45'53 "S; 27 °41'3 "E) RU75 Quality Nutrients The system is currently eutrophic and must be improved and Phosphate(PO4) maintained in a mesotrophic state. Nitrate* (NO3) & 5 0.025mg /L P 0.295 5 1.00 Vaal Dam (26 °52'57 "S; 28 °6'58 "E) The system must be improved and managed in a mesotrophic Nitrite (NO2) * mg /L N 2A state. Phosphate(PO4) Nitrate* (NO3) & 5 0.025mg /L P 0.021 Nitrite (NO2) * 5 1.00mg /L N 0.2 52
No. 3900 1 IUA Dams RURU Component Component SubSub RQORol) measureIndicator/Indicator! Numerical Limits 95th Percentile UB Vrede/Thembalihle Dam (27 °26'21.829 °11'45.1 "S; "E) RU20 Quality Salts notSalt impact levels negativelymust be maintained on the ecosystem. at concentrations where they do Conductivity'Electrical S 85 mS /m 84.8 This gazette isalsoavailable freeonlineat www.gpwonline.co.za UM UL Vaal BarrageKlipdrift (26`45'53 Dam (26"S; °37'0 "S; 27 °127 T52 °41'3 "E) "E) RU7572 Quality Salts doSaltnot not impact levels impact mustnegatively negatively be maintained on onthe the ecosystem. at ecosystem. concentrations where they do Conductivity'Electrical Numerical5s 85 mS /m 95th80.4102 Percentile UL Boskop Dam (26 °33'42 "S; 27°6'41 "E) RU73 Quality VariablesSystem ecosystemThe pH of the function. water in the dam should not negatively impact on pH_min'measurepH_max 555 8.8 -9 Limits 8.18.7 GO UAUB Vrede/Thembalihle Dam Grootdraai (27Dam °26'21.829 °11'45.1(26 °55'9.2 "S; "E) "S; RU10 RU20 Quality Toxins Salts mesotrophicposeSaltToxicity levels a threat must must state beto behumanmaintained to maintained avoid health. cyanobacterial better atThe concentrations than darn concentrations mustblooms be where andmaintained the thatthey would do in a Chl -a: 5 20 pg/L No data VERNMENT GAZETTE,17 JULY 2015 Gerrands(28 °16'55.32829'17'41.6"E) Dam°17'306 "S; "E) RU associated algal toxins. phytoplankton' UD SaulspoortLoch Darn Athlone(Sol Dam 28 °18'31.4"E)(28 °15'0.9 "S. RU43 Quality Toxins notavoidThe impact system cyanobacteria negatively must be andmaintained on the ecosystem.associated in a mesotrophic algal toxins. condition to Electricalphytoplankton'Chl -a: 5 20 pg /L No data UL Klipdrift Dam (26 °37'0 "S; 28(28Plaatjie °21'46.9 °13'1.5 Dam) "S; "E) 41 & RU43 Quality Toxins To avoid cyanobacteria blooms, the dam must be maintained in a Chl -a'. S 20 pg /L No data UM Vaal Barrage (26 °45'53 "S; 27 °17'5227 "E) °41'3 "E) RU7572 Quality Toxins metalsThebuildmesotrophic watersystem -up at of levels in cyanobacteria must state.the that Barrage be posemaintained shouldbloomsa threat innot and toa containmesotrophichuman associated health.toxins algalstate including toxins.to prevent phytoplanktonChlphytoplankton' -a: 5 20 pg/L No data UL KlipdriftVaal Dam Dam (26 °37'0(26 °52'57 "S; "S; 27 °17'5228 "E) °6'58 "E) RU7274 Quality Salts SaltcyanobacterialThe levelssystem must must blooms be be maintained maintained and associated at in concentrations a mesotrophic algal toxins. where state tothey avoid do phytoplanktonConductivity*Chl -a: 5 2085 pgmS /L /m No84.8 data not impact negatively on the ecosystem. Electrical UM Vaal Barrage (26 °45'53 "S; 27°41'3 "E) RU75 Quality Salts Salt levels must be maintained at concentrations where they Conductivity* s 85 mS /m 102 do not impact negatively on the ecosystem. Electrical UL Boskop Dam (26 °33'42 "S; 27 °6'41 "E) RU73 Quality VariablesSystem The pH of the water in the dam should not negatively impact on Conductivity* 5 85 mSlm 80.4 pH_max * 2 8.8 8.7 UA Grootdraai Dam29 °17'41.6(26 °55'9.2 "E) "S; RU10 Quality Toxins Toxicityecosystem must function. be maintained better than concentrations that would pH_min * 5 5.9 8.1 pose a threat to human health. The dam must be maintained in a mesotrophic state to avoid cyanobacterial blooms and the associated algal toxins. Chl -a: Gerrands Dam phytoplankton* s 20 pg /L No data UD (28°16'55.3"S;28 °17'30.6 "E) RU43 Quality Toxins The system must be maintained in a mesotrophic condition to avoid cyanobacteria and the associated algal toxins. Chi -a: SaulspoortLoch Dam Athlone (Sol Dam Plaatjie28 °18'31.4(28 °15'0.9 Dam) "E) "S; phytoplankton* 5 20 pg /L No data (28 °131.5 "S; RU UL Klipdrift Dam (26 °37'0 "S; 28 °21'46.927 °17'52 "E) "E) 41 & RU4372 Quality Toxins To avoid cyanobacteria blooms, the dam must be maintained in a mesotrophic state. Chi -a: s 20 pg /L No data UM Vaal Barrage (26 °45'53 "S; 27 °41'3 "E) RU75 Quality Toxins The system must be maintained in a mesotrophic state to prevent phytoplankton* build -up of cyanobacteria blooms and associated algal toxins. The water in the Barrage should not contain toxins including metals at levels that pose a threat to human health. Chi -a: Vaal Dam (26 °52'57 "S; 28 °6'58 "E) RU74 The system must be maintained in a mesotrophic state to avoid phytoplankton* 5 20 pg/L No data cyanobacterial blooms and associated algal toxins. Chi -a: phytoplankton* s 20 pg/L No data
Table 9: ResourceAllWAIUA Quality ObjectivesObjectives forfor GROUNDWATERGROUNDWATER in in the theAll Upper PrioritisedUpper Vaal Vaal RUs RU Component Quantity RQOWhereRQOReserve,Reserve. water Scheduleuse is higher 1 and than General requirements Authorizations, for hectareAbstraction > Reserve, Volume Schedule(Q)(Q) perper indicator/Indicator/ measure measure NumericalQNumerical < Average Limits Limits recharge per hectare This gazette isalsoavailable freeonlineat www.gpwonline.co.za abstractionabstraction rates rates should should not notexceed exceed the theaverage average RU7RU46 RU10 RU47 RU11 RU59 RU33 RU60RU1 RU35 RU2RU74RU40 RU3 RU42 RU5 RU44 RU43 RU6 recharge values of the aquifer based on the area.area and General Authorizations. At leastDolomiticrepresentative one NGwQI aquifers6 of MPthe should aquifer.monitoring not Water exceed site level that 6m. fluctuationsis in RU63RU69 hectare > Reserve, Schedule Waterlevel should level fluctuationsnot exceed 4.05around m the average site water STAATSKOERANT, RU64RU71 Waterlevel should level fluctuationsnot exceed 13.815.3around m the average site water All RU75RU66 Aquifer Mediumnegative to long decline -term or water deviation trends from should the naturalnot show trend MonitoringaccordingDepth to Groundwater toGuidelines. Groundwater Level QWaterlevel < Average should level fluctuationsnot recharge exceed per 23.614.8around hectare m the average site water and General Authorizations. level should not exceed 9.8 m 1 RU7 RU10 RU11 RU33RU1 RU35 RU2 RU3 RU5 RU6 RU62RU70 Waterlevel should level fluctuationsnot exceed 15.4around m the average site water 7 JULIE2015 RU46 RU47 RU59 RU60 RU74RU40 RU42 RU44 RU43 RU65RU73 levelWater should level fluctuationsnot exceed 22.94.211.8around m m the average site water RU72 levelWater should level fluctuationsnot exceed 7.16around m the average site water All Aquifer Mediumnegative to long decline -term or water deviation trends from should the naturalnot show trend Depth to Groundwater Level At leastrepresentative one NGwQI of MPthe monitoringaquifer. Water site levelthat isfluctuations in according to Groundwater No. 3900 1
RU69 Monitoring Guidelines. WaterDolomitic level aquifers' fluctuations should around not exceed the average 6m. site water 53 RU63 Waterlevel should level fluctuationsnot exceed 4.05around m the average site water RU71 Waterlevel should level fluctuationsnot exceed 15.3around m the average site water RÚ64 Waterlevel should level fluctuationsnot exceed 13.8around m the average site water RU66 Waterlevel should level fluctuationsnot exceed 14.8around m the average site water RU75 Waterlevel should level fluctuationsnot exceed 23.6around m the average site water RU70 Waterlevel should level fluctuationsnot exceed 9.8around m the average site water RU62 Waterlevel should level fluctuationsnot exceed 15.4around m the average site water RU73 Waterlevel should level fluctuationsnot exceed 11.8around m the average site water RU65 Waterlevel should level fluctuationsnot exceed 4.2around m the average site water RU72 Waterlevel should level fluctuationsnot exceed 22.9around m the average site water level should not exceed 7.16 m