Friday: 06 November 2026
uMngeni-uThukela Water wishes to inform the public that the Durban Heights Water Treatment Works is currently treating reduced volumes of water due to an increase in algae in the raw water supply, which has resulted in treatment filters becoming clogged.
This has affected the volume of treated water supplied to some areas in the northern and southern parts of the eThekwini Municipality.
Over the past two weeks, there has been a significant increase in algal volumes in water received from the Albert Falls and Nagle Dam system.
Several factors, including the pollution of raw water sources upstream of our dams as well as increased weather temperatures have contributed to the algal growth.
As a result, the Durban Heights Water Treatment Works has recorded elevated algal levels, resulting in the clogging of filters and a subsequent reduction in treatment capacity.
Consequently, the facility is currently unable to treat the full volumes of raw water it would ordinarily process to meet supply requirements.
uMngeni-uThukela Water is implementing several interventions to address the situation. These include optimising water treatment processes and applying advanced chemical treatment methods to remove the excess algae and restore filter efficiency.
As part of these interventions, several filters will be temporarily taken offline this weekend to undergo chemical treatment aimed at removing the accumulated algae.
uMngeni-uThukela Water will reduce its bulk water supply to eThekwini by 40 megalitres (40 million litres) until the situation improves.
We are also conducting continuous water quality and quantity monitoring to ensure that the water produced continues to meet the required drinking water quality standards.
Residents are urged to continue using water sparingly until normal treatment and supply volumes are restored.
The following areas in eThekwini may experience water supply interruptions during this time:
Northern Aqueduct
Phoenix 1: Mount Edgecombe Hospital, Mount Edgecombe Estate, Broadlands, Southgate, Stonebridge, Clayfield, Campbells Town, Greenbury
Phoenix 2: Sunford, Hannaford, Phoenix Highway, Longcroft, Longbury, Plaza, Southbury, Eastbury, Grove End, Sastri Park, Caneside, Canehaven, Woodview
Phoenix 3: Redfern, Phoenix Industrial Park, Fernham, Whetstone, Bridge City
Phoenix 4: Westham,Trenance Manor, Ghandi Settlement, Lenham, Ferham, Brookdale Whetstone, Bhambayi, Amaoti, sunford
Phoenix 5: Woodview, Cornubia, Ottawa, Palmview,Trenance Park
Phoenix 6: Mount Mariah and Corobrick
Montview: Mountview Area, Brindhaven, Southridge, Glenhaven, Parkgate, Rietriver
Tranance 1 Reservoir: Dawncrest, Oaklands, Surya Heights, Sanna Township, Rietriver, Mountview, Parkgate, Trenance Old Phase
Trenance 3 : Amaoti, Trenance Park New & old Phase, Redcliffe, Buffelsdraai, Groenburg Estate
Aloes: Avocahills, Corovoca, Khabazela, Duffs Road, Quarry Heights
Newlands 1: Castlehill, B5, Westridge, Riverdene, Newlands West, Earlsfield, Briardale
Newlands 2: Hillgrove, Briardele, Newlands East, Fossa
Newlands 3: Newlands East, V.N. Naik School, Riverhorse Valley, Ethekwini Hospital
Newlands 4: Riverdene, Westrich, Newlands West
Umhlanga North: Umhlanga CBD
Umhlanga South: Umhlanga CBD, La Laucia
Umhlanga 2 Reservoir: Umhlanga Area, Umhlanga Ridge, Prestondale, Ilala Ridge, Hawaan Forest, Umhlanga Manors, Westridge, Blackburn Village
Durban North Reservoir Hl and Durban North LL: Redhill, Durban North Area, Beachway, Athlone, Japanese Garden, Riverside
Virginia Reservoir & Tower: Glen Anil, Glenhills, Umhlanga
Sunningdale Reservoir and Towers Sunningdale Tower North: Sunningdale, La Lucia, & Mall, Glenshley, Glen Anil, Somerset, Umhlanga, La Lucia Ridge
Ambleside Reservoir: La Lucia, La Lucia Mall, Glenashley
Effingham Reservoir: Avoca, Effingham, Glenhills, Glen Anil, North Coast Road, Redhill, Greenwood Park,
Tafuleni Reservoir & Tower: Amaoti, Ngoqokazi area
Kwamashu 1 Reservoir: Kwamashu Section,K,J,L,M,N,F,G,H, B5
Kwamashu 2 Reservoir: Kwamashu Section A,B,C,D, E,F,G, Siyanda
Kwamashu 3 Reservoir: Ntuzuma F, Kwamashu L, Kwamashu N
Ntuzuma 3: Ntuzuma F, Ntuzuma G , H and part of M section Kwa mashu, Inanda A , B ,C , Bester area and Mshayazafe area
Ntuzuma 4 Reservoir: Ntuzuma E, Ntuzuma F, Soweto, Inanda Newtown A, Lindelani A Section
Ntuzuma 7 : Ntuzuma A,B,C,D,F, Richmond farm and Lindani areas
Amaotana : Matikwe,Mzinyathi,Silwane ,Mgangeni,Senzokuhle and Amatata
Southern Aqueduct
Central Region
NORTHDENE 1&2 – Farningham Ridge, Hillary, Malvern, Mount Vernon, Queensburgh, Queensmead Industrial, Shallcross
Firwood Reservoir – Farningham Ridge, Malvern, Moseley Park, Mount Vernon, Nirvana Hills, Northdene, Queensburgh
RIDLEY PARK RESERVOIR – Coedmore, Farningham Ridge, Hillary, Malvern, Memorial Park, Mount Vernon, Queensburgh, Umbilo, Umhlathuzana, Umkhumbaan
CHATSWORTH 4 RESERVOIR – Arena Park, Bulbul, Chartsworth Town Centre, Crossmoor, Enhlanzeni, Ezinyathini, Klaarwater, Kwamgaga, Montford, Moorton, Phumphele, Risecliff, Shallcross, Silverglen, Welbedagt East, Welbedagt West, Westcliff, Woodhurst
SHALLCROSS RESERVOIR – Buffels Bosch, Burlington Heights, Moseley Park, Queensburgh, Savannah Park, Shallcross
HARINAGER – Shallcross
KLAARWATER – Crossmoor, Klaarwater, Moorton, Moseley Park, Phumphele, Savannah Park, Shallcross, St Wendolins Ridge
CHATSWORTH 1 RESERVOIR – Bayview, Bulbul, Croftdene, Havenside, Kharwastan, Phumphele, Silverglen, Umhlathuzana, Westcliff, Woodhurst
CHATSWORTH 2 RESERVOIR – Arena Park, Bayview, Chatsworth Town Centre, Havenside, Kharwastan, Malvern, Phumphele, Silverglen, Umhlathuzana, Westcliff, Woodhurst
CHATSWORTH 3 RESERVOIR – Arena Park, Chatsworth Town Centre, Croftdene, Montford, Risecliff, Silverglen, Welbedagt West, Westcliffe
WESTCLIFF – Bayview, Coedmore, Havenside, Phumphele, Umhlathuzana, Woodhurst, Woodlands, Yellowwood Park
South region
UMLAZI 1/1A RESERVOIR – Umlazi A, B, C, D, E, F, V, S, T Sections
UMLAZI 2 RESERVOIR – Umlazi M, L, J, K, H, R, Q, P, BB, CC, AA, F, G, W, C, D & N Sections
UMLAZI 3 RESERVOIR – Umlazi J, K & L
UMLAZI 4 RESERVOIR – Umlazi X (Malukazi), Y & Z Section
UMLAZI 5 RESERVOIR – Umlazi AA, BB & Z Sections
UMLAZI 6 RESERVOIR – Umlazi BB, CC & AA
ENSIMBINI 1 & 2 – Ensimbini, Ntabankulu, Draaihoek, Mahlabathini, Mangamazini & Mkhazini
FOLWENI 1 & 2 RESERVOIR – Folweni A, B, C, Golokodo, Dodoza, Isiphingo Esincane
Pinetown south system
N – PUMPSTATION – Klaarwater, Phumphele, St Wendolins Area, Part of Nsizwaqkazi. Savanah Park Phase 1 & 2, Wiltshire Factories
WASHINGTON HEIGHTS (RESERVOIR P) – Klaarwater, Nsizwaqkazi, Regency Park, Latana, Hlanganisa, Gwala Road Nsizwakazi, Sarjoo Road
INTAKE RESERVOIR (RESERVOIR Q)- Demat, Progress Road, Mawelewele Area, Intake Road, Luganda, Part of Nagina Township, Khoseleni Area, Sthundu Hills, Dambuza, Part of Bell Tower Road, Part of Grasmere Road, Mpongo Road
Pinetown Pumps (Reservoir 1)
Mt Moriah Reservoir
Pinetown
Sarnia
Westmead
Nazareth
Mosley Park
Cowies Hill
Kwadabeka
Clermont
Berkshire downs
New Germany Industrial
