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RESERVE DETERMINATION STUDIES FOR SELECTED SURFACE WATER, GROUNDWATER, ESTUARIES AND WETLANDS IN THE GOURITZ

WMA

PSC MEETING NO 1

OVERVIEW OF STUDY AREA24 JULY 2014

Study Abbreviated NameGOURITZ RESERVE DETERMINATION STUDY

(GRDS)

GOURITZ CATCHMENT

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BACKGROUND TO GOURITZ CATCHMENT

• Situated along the south coast and inland Karoo regions of the Western Cape with a surface area ± 53 000 km2

• Comprises largely dry inland Great Karoo + Little Karoo with humid coastal belt

• Primary drainage regions J, K1-7, H8-9: 130 quaternary catchments

• 41% of runoff from the Gouritz River, 46% from the coastal sub-area, 13% from western area

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• Groot River (J1)• Gamka River (J2)• Olifants River (J3) • Western Coastal Rivers (Gouritz) (H8-9 and J4)• Eastern Coastal Rivers (K1-7)

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• Groot River (J1)• Gamka River (J2)• Olifants River (J3) • Western Coastal Rivers (Gouritz) (H8-9 and J4)• Eastern Coastal Rivers (K1-7)

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• Groot River (J1)• Gamka River (J2)• Olifants River (J3) • Western Coastal Rivers (H8-9 and J4)• Eastern Coastal Rivers (K1-7)

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• Groot River (J1)• Gamka River (J2)• Olifants River (J3) • Western Coastal Rivers (Gouritz) (H8-9 and J4)• Eastern Coastal Rivers (K1-7)

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• Groot River (J1)• Gamka River (J2)• Olifants River (J3) • Western Coastal Rivers (Gouritz) (H8-9 and J4)• Eastern Coastal Rivers (K1-7)

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• Groot River (J1)• Gamka River (J2)• Olifants River (J3) • Western Coastal Rivers (H8-9 and J4)• Eastern Coastal Rivers (K1-7)

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Touws River

Laingsburg

Merweville

Leeu Gamka

Beaufort West

Klaarstroom

Ladismith

CalitzdorpOudtshoorn

De Rust

Dysselsdorp

Uniondale

Van Wyksdorp

Heidelberg Riversdale

Albertinia

Still BayMossel Bay

Groot Brak River

Klein Brak River

Friemersheim

George

Karatara

Wilderness

Knysna

Sedgefield

Rheenendal

Plettenberg Bay

Herbertsdale

Gouritz River WMA Towns

Prince Albert

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Duiwenhoks

Goukou Gouritz

Groot

Touws

Buffels

Olifants

Dwyka

Dwyka

Gamka Sand

Gamka

Koekemoer

Kamanassie

Olifants

Taka

Olifants

Leeu

Gouritz River and tributaries

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Blinde

Hartenbos

Klein Brak

Groot Brak

Maalgate

Gwaing Kaaimans

WildernessSwartvlei

Goukamma

Knysna Piesang

Keurbooms

Bloukrans

Groot (West)

Sout (East)

Matjies

Noetsie

Coastal Rivers

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Walkers

Stols River

Leeu-Gamka

Gants

Prins River

Bellair

Gamkapoort

Oukloof

Calitzdorp

Miertjieskraal

Kammansie

Stompdrif

Raubenheimer

Duiwenhoksrivier

Korinte-Vet

Zandfontein

Ernest Robertson

Wolwedans

Brandwag Swart River

Garden Route

Akkerkloof

Doornfontein

Merweville

Floriskraal

Hartbeeskruil

WMA Primary activities

• Afforestation – primarily Coastal Belt (Plettenberg Bay/Knysna area)

• Agricultural• - Grapes and apples (Langkloof)• - Ostrich farming (Oudtshoorn)• - Stock farming (Karoo)• - Dairy farming (Coastal)• - Vegetables (Coastal)

• Eco-tourism – primarily Coastal Belt, but also locally in Karoo and Little Karoo

Water sources in WMA

• Surface water ( incl dams)• Groundwater

- Groundwater NB in dry inland areas – used for domestic supply + stock watering, and irrigation (Gamka, Groot and Olifants areas)

- Over-exploitation in some areas

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Extent of GRDS

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The GRDS excludes :• majority of the coastal catchment areas covered by

the Outeniqua Reserve Determination Study (ORDS)

• other previous Reserve studies• only covers the Groot, Gamka, Olifants and Gouritz

catchment areas.

Thank you!

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