Randjieslaagte Reservoir
A reservoir in Johannesburg Water's Sandton system. What Johannesburg Water (JW) reported about it, from March 2025.
Latest JW report
JW reported supplying fairly on 29 September 2026 at 21:05. The board read “Supplying fairly.” JW put it on its website 1 October 2026 at 13:40. JW's page for this board ↗ · JW's image of the board ↗
Live updates during the day: Johannesburg Water ↗ and OurPower ↗. This page keeps the history.
- JW's page
- Randjieslaagte Reservoir ↗
Suburbs it supplies
JW links 46 suburbs to Randjieslaagte Reservoir. Most also draw on other supplies.
Alexandra, Alexandra East Bank, Atholl, Birnam, Bramley, Bramley Manor, Bramley North, Bramley Park, Bramley View, Casey Park, Corlett Gardens, Crystal Gardens, Crystal Gardens AH, Dorelan, Dunsevern, East Bank, Elton Hill, Fairmount Ridge, Fairvale, Far East Bank, Formain, Glenhazel, Glenkay, Glensan, Gresswold, Illovo, Kentview, Kew, Lombardy East, Lombardy West, Lyndhurst, Marlboro, Melrose North, Raumarais Park, Rembrandt Park, Rembrandt Ridge, Sandringham, Savoy Estate, Silvamonte, Sunningdale, Sunningdale Ridge, Viewcrest, Waverley, Whitney Gardens, Winston Ridge, Wynberg.
Up the supply chain
On 15 July 2025, JW reported Randjieslaagte Reservoir critically low
Where the water comes from, top to bottom, and what JW reported for each part on 15 July 2025. A suburb draws on every supply listed at once; JW does not say which street each one reaches.
Showing 15 July 2025. Other days: 7 August 2026, 5 June 2026, 29 May 2026, 9 April 2026, 3 April 2026, 15 July 2025, or the last day.
Bulk supply
JW's boards carry no status for Rand Water's stations.
Feeds Randjieslaagte Reservoir: stated by JW source ↗System
JW reported 1 of 11 supplies in it short of water.
Supply
JW reported critically low at 16:05, then supplying adequately at 21:40.
As printed: “09:30 Supplying fairly, declining.”; “16:05 Critically low.”; “21:40 Supplying adequately. High demand.”
In the Sandton system: listed on a JW page source ↗ Fed from Palmiet Pump Station (Rand Water): stated by JW source ↗JW's reported status of the reservoir or tower, not measured water at taps. Boards from March 2025.
Source: Johannesburg Water's System Update boards and notices, read by us. How this record is made.
Cite this figure
watersearch (2026). “On 15 July 2025, JW reported Randjieslaagte Reservoir critically low”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/reservoir/randjieslaagte-reservoir#fig-chain
The data as a table
| Part | What it is | Feeds | How we know | On 15 July 2025 |
|---|---|---|---|---|
| Palmiet Pump Station (Rand Water) | Rand Water station | Randjieslaagte Reservoir | stated by JW | No JW status for it |
| Sandton system | System | JW's system page | 1 of 11 supplies short of water; 0 with no report | |
| Randjieslaagte Reservoir | Reservoir | JW's page or notice | critically low |
Randjieslaagte Reservoir over time
In 2026 so far, JW reported Randjieslaagte Reservoir short of water on 11 days
What JW reported each day, 3 March 2025 to 29 September 2026, one row a month; the number at the right is the month's days short of water. Based on 283 days with a JW report. A day counts as short of water when JW's worst report for it that day was “poor pressure to no water” or “critically low”. Gaps: Randjieslaagte Reservoir: no report from 25 July 2025 to 31 January 2026.
- water as normal
- supplying fairly
- JW warned
- low, or weak in places
- short of water
- critically low
- shut for the night
- not on the scale
- no JW report
- still filling in
JW's reported status of the reservoir or tower, not measured water at taps. Boards from March 2025.
Source: Johannesburg Water's System Update boards and notices, read by us. How this record is made.
Cite this figure
watersearch (2026). “In 2026 so far, JW reported Randjieslaagte Reservoir short of water on 11 days”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/reservoir/randjieslaagte-reservoir#fig-year
The data as a table
| Month | Days reported | Days in record | Adequate or fair | Poor pressure in places, or low | Warning: no water may occur | Poor pressure to no water | Critically low | Overnight closure |
|---|---|---|---|---|---|---|---|---|
| March 2025 | 18 | 29 | 18 | 0 | 0 | 0 | 0 | 0 |
| April 2025 | 13 | 30 | 13 | 0 | 0 | 0 | 0 | 0 |
| May 2025 | 12 | 31 | 12 | 0 | 0 | 0 | 0 | 0 |
| June 2025 | 28 | 30 | 18 | 3 | 0 | 0 | 7 | 0 |
| July 2025 | 23 | 31 | 16 | 3 | 0 | 2 | 2 | 0 |
| August 2025 | 0 | 31 | 0 | 0 | 0 | 0 | 0 | 0 |
| September 2025 | 0 | 30 | 0 | 0 | 0 | 0 | 0 | 0 |
| October 2025 | 0 | 31 | 0 | 0 | 0 | 0 | 0 | 0 |
| November 2025 | 0 | 30 | 0 | 0 | 0 | 0 | 0 | 0 |
| December 2025 | 0 | 31 | 0 | 0 | 0 | 0 | 0 | 0 |
| January 2026 | 0 | 31 | 0 | 0 | 0 | 0 | 0 | 0 |
| February 2026 | 7 | 28 | 3 | 4 | 0 | 0 | 0 | 0 |
| March 2026 | 21 | 31 | 17 | 4 | 0 | 0 | 0 | 0 |
| April 2026 | 30 | 30 | 23 | 4 | 0 | 2 | 0 | 0 |
| May 2026 | 31 | 31 | 28 | 0 | 0 | 0 | 3 | 0 |
| June 2026 | 30 | 30 | 22 | 4 | 0 | 0 | 4 | 0 |
| July 2026 | 30 | 31 | 30 | 0 | 0 | 0 | 0 | 0 |
| August 2026 | 20 | 31 | 16 | 2 | 0 | 0 | 2 | 0 |
| September 2026 | 20 | 29 | 20 | 0 | 0 | 0 | 0 | 0 |
From April to September 2026 (six months), JW reported Randjieslaagte Reservoir short of water on 11 of 161 reported days
Days per month short of water, stacked: critically low at the base. The tick is the median supply in the city that month. The strip under each bar is the share of days with a JW report; a month with none says gap. 3 March 2025 to 29 September 2026.
In 2026 so far: 11 days short of water for Randjieslaagte Reservoir, from 189 days with a report. The median supply in the city: 4 days.
JW's reported status of the reservoir or tower, not measured water at taps. Boards from March 2025.
Source: Johannesburg Water's System Update boards and notices, read by us. How this record is made.
Cite this figure
watersearch (2026). “From April to September 2026 (six months), JW reported Randjieslaagte Reservoir short of water on 11 of 161 reported days”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/reservoir/randjieslaagte-reservoir#fig-days
The data as a table
| Month | Days short of water | Days reported | Days in record | City median |
|---|---|---|---|---|
| March 2025 | 0 | 18 | 29 | 0 |
| April 2025 | 0 | 13 | 30 | 0 |
| May 2025 | 0 | 12 | 31 | 0 |
| June 2025 | 7 | 28 | 30 | 0 |
| July 2025 | 4 | 23 | 31 | 0 |
| August 2025 | gap | 0 | 31 | |
| September 2025 | gap | 0 | 30 | |
| October 2025 | gap | 0 | 31 | |
| November 2025 | gap | 0 | 30 | |
| December 2025 | gap | 0 | 31 | |
| January 2026 | gap | 0 | 31 | |
| February 2026 | 0 | 7 | 28 | 0 |
| March 2026 | 0 | 21 | 31 | 0 |
| April 2026 | 2 | 30 | 30 | 0 |
| May 2026 | 3 | 31 | 31 | 0 |
| June 2026 | 4 | 30 | 30 | 0 |
| July 2026 | 0 | 30 | 31 | 1 |
| August 2026 | 2 | 20 | 31 | 0 |
| September 2026 | 0 | 20 | 29 | 0 |
On Randjieslaagte Reservoir, half of its last 10 outages lasted at least 18 hours
This is not a forecast. It is how long past outages lasted. Each dot is one past outage, placed by its length: the last 10 outages on Randjieslaagte Reservoir. A hollow dot with an arrow had no reported end: JW's reports stopped before it ended, or it was still going at JW's last report. Either way it lasted at least that long (1 of 10).
JW's reported status of the reservoir or tower, not measured water at taps. Boards from March 2025.
Source: Johannesburg Water's System Update boards and notices, read by us. How this record is made.
Cite this figure
watersearch (2026). “On Randjieslaagte Reservoir, half of its last 10 outages lasted at least 18 hours”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/reservoir/randjieslaagte-reservoir#fig-base-rate
The data as a table
| Started | Length | Ended |
|---|---|---|
| 7 August 2026 | at least 2.4 days | no reported end |
| 5 June 2026 | 17 hours | 6 June 2026 |
| 3 June 2026 | 16 hours | 4 June 2026 |
| 2 June 2026 | 19 hours | 3 June 2026 |
| 29 May 2026 | 3.9 days | 2 June 2026 |
| 9 April 2026 | 17 hours | 10 April 2026 |
| 3 April 2026 | 23 hours | 4 April 2026 |
| 15 July 2025 | 6 hours | 15 July 2025 |
| 8 July 2025 | 19 hours | 9 July 2025 |
| 2 July 2025 | 5 hours | 2 July 2025 |
JW's notices gave 4 end times for Randjieslaagte Reservoir. By the stated time, JW's boards showed the water back on none of the 4 that have passed
The water came back after the stated time 4 times; half of those times it was back within 1 day 9 hours of it. Each row is one end time a JW notice stated for one supply, in date order (hollow dot), against the first board on which JW reported the supply supplying fairly or better and off bypass (filled dot). This asks more than the end of an outage, which comes at JW's first report better than “poor pressure to no water” or “critically low”. An arrow: no such board yet. From 4 notices.
JW's reported status of the reservoir or tower, not measured water at taps. Boards from March 2025.
Source: Johannesburg Water's System Update boards and notices, read by us. How this record is made.
Cite this figure
watersearch (2026). “JW's notices gave 4 end times for Randjieslaagte Reservoir. By the stated time, JW's boards showed the water back on none of the 4 that have passed”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/reservoir/randjieslaagte-reservoir#fig-stated
The data as a table
| Notice | Supply | Reason JW gave | Stated end | First board showing recovery | Against the stated time |
|---|---|---|---|---|---|
| 25 March 2025 | Randjieslaagte Reservoir | Repairs to a burst 600mm pipe | 25 March 2025 17:00 | 26 March 2025 13:45 | 20 hours 45 minutes after the stated time |
| 9 May 2025 | Randjieslaagte Reservoir | Repair leak on the pipeline | 13 May 2025 18:00 | 15 May 2025 15:15 | 1 day 21 hours after the stated time |
| 2 July 2026 | Randjieslaagte Reservoir | Dummy run for the preparation of point repair of steel pipeline with a diameter of 375 mm. | 2 July 2026 12:00 | 6 July 2026 10:40 | 3 days 22 hours after the stated time |
| 20 August 2026 | Randjieslaagte Reservoir | Tie-in of new water pipe to existing mainline | 20 August 2026 00:00 | 20 August 2026 08:35 | 8 hours 35 minutes after the stated time |
In words
2026 so far: JW reported it at “poor pressure to no water” or “critically low” on 11 days. JW published a report for it on 189 of the 272 days in the record; the other 83 days have no report, and we do not count them as normal. The median supply in the city had 4 such days.
2025: JW reported it at “poor pressure to no water” or “critically low” on 11 days. JW published a report for it on 94 of the 304 days in the record; the other 210 days have no report, and we do not count them as normal. The median supply in the city had 1 such day.
The last 10 outages JW reported on this supply lasted a median of at least 18 hours; the longest at least 3.9 days. 1 of them had no reported end (still open, or JW's reports stopped), so they count at the length so far. This is a record of the past, not a forecast.
JW's boards first named Randjieslaagte Reservoir on 3 March 2025 and last on 29 September 2026: 481 statuses on 481 boards, over 283 days. 0 of those statuses announced a scheduled overnight closure, which we count apart, never as an outage.
Month by month
Days JW reported Randjieslaagte Reservoir at “poor pressure to no water” or “critically low”, out of the days it reported it at all. A month with few reported days says little.
| Month | Days short of water | Days with a report | Same month a year earlier |
|---|---|---|---|
| March 2025 | 0 | 18 | |
| April 2025 | 0 | 13 | |
| May 2025 | 0 | 12 | |
| June 2025 | 7 | 28 | |
| July 2025 | 4 | 23 | |
| August 2025 | No JW report this month | ||
| September 2025 | No JW report this month | ||
| October 2025 | No JW report this month | ||
| November 2025 | No JW report this month | ||
| December 2025 | No JW report this month | ||
| January 2026 | No JW report this month | ||
| February 2026 | 0 | 7 | |
| March 2026 | 0 | 21 | 0 of 18 days |
| April 2026 | 2 | 30 | Too few reports to compare |
| May 2026 | 3 | 31 | Too few reports to compare |
| June 2026 | 4 | 30 | 7 of 28 days |
| July 2026 | 0 | 30 | 4 of 23 days |
| August 2026 | 2 | 20 | Too few reports to compare |
| September 2026 | 0 | 20 | Too few reports to compare |
Recent JW reports
The last 20 statuses JW printed for Randjieslaagte Reservoir, newest first.
JW reported supplying fairly on 29 September 2026 at 21:05. The board read “Supplying fairly.” JW put it on its website 1 October 2026 at 13:40. JW's page for this board ↗ · JW's image of the board ↗
JW reported supplying adequately on 29 September 2026 at 13:20. The board read “Supplying adequately”. JW put it on its website 1 October 2026 at 13:41. JW's page for this board ↗ · JW's image of the board ↗
JW reported supplying adequately on 28 September 2026 at 13:45. The board read “Supplying adequately.” JW put it on its website 1 October 2026 at 13:42. JW's page for this board ↗ · JW's image of the board ↗
No JW report since 25 September 2026. JW reported supplying adequately on 25 September 2026 at 19:10. The board read “Supplying adequately.” JW put it on its website 28 September 2026 at 10:32. JW's page for this board ↗ · JW's image of the board ↗
No JW report since 25 September 2026. JW reported supplying adequately on 25 September 2026 at 13:10. The board read “Supplying adequately”. JW put it on its website 28 September 2026 at 10:31. JW's page for this board ↗ · JW's image of the board ↗
No JW report since 23 September 2026. JW reported supplying adequately on 23 September 2026 at 17:45. The board read “Supplying adequately.” JW put it on its website 25 September 2026 at 10:41. JW's post ↗ · JW's image of the board ↗
No JW report since 22 September 2026. JW reported supplying adequately on 22 September 2026 at 10:30. The board read “Supplying adequately.” JW put it on its website 22 September 2026 at 15:42. JW's post ↗ · JW's image of the board ↗
No JW report since 21 September 2026. JW reported supplying adequately on 21 September 2026 at 18:50. The board read “Supplying adequately.” JW put it on its website 22 September 2026 at 14:09. JW's post ↗ · JW's image of the board ↗
No JW report since 21 September 2026. JW reported supplying adequately on 21 September 2026 at 14:30. The board read “Supplying adequately.” JW put it on its website 22 September 2026 at 14:08. JW's post ↗ · JW's image of the board ↗
No JW report since 18 September 2026. JW reported supplying adequately on 18 September 2026 at 18:30. The board read “Supplying adequately”. JW put it on its website 21 September 2026 at 09:06. JW's post ↗ · JW's image of the board ↗
No JW report since 18 September 2026. JW reported supplying adequately on 18 September 2026 at 10:45. The board read “Supplying adequately”. JW put it on its website 21 September 2026 at 09:04. JW's post ↗ · JW's image of the board ↗
No JW report since 17 September 2026. JW reported supplying adequately on 17 September 2026 at 15:36. The board read “Supplying adequately.” JW put it on its website 18 September 2026 at 10:41. JW's post ↗ · JW's image of the board ↗
No JW report since 17 September 2026. JW reported supplying adequately on 17 September 2026 at 09:45. The board read “Supplying adequately.” JW put it on its website 18 September 2026 at 10:40. JW's post ↗ · JW's image of the board ↗
No JW report since 16 September 2026. JW reported supplying adequately on 16 September 2026 at 15:15. The board read “Supplying adequately.” JW put it on its website 16 September 2026 at 15:56. JW's post ↗ · JW's image of the board ↗
No JW report since 16 September 2026. JW reported supplying adequately on 16 September 2026 at 11:15. The board read “Supplying adequately.” JW put it on its website 16 September 2026 at 15:52. JW's post ↗ · JW's image of the board ↗
No JW report since 15 September 2026. JW reported supplying adequately on 15 September 2026 at 16:50. The board read “Supplying adequately”. JW put it on its website 16 September 2026 at 10:17. JW's post ↗ · JW's image of the board ↗
No JW report since 15 September 2026. JW reported supplying adequately on 15 September 2026 at 10:40. The board read “Supplying adequately”. JW put it on its website 16 September 2026 at 10:11. JW's post ↗ · JW's image of the board ↗
No JW report since 14 September 2026. JW reported supplying adequately on 14 September 2026 at 10:10. The board read “Supplying adequately.” JW put it on its website 15 September 2026 at 11:24. JW's post ↗ · JW's image of the board ↗
No JW report since 11 September 2026. JW reported supplying adequately on 11 September 2026 at 11:20. The board read “Supplying adequately.” JW put it on its website 15 September 2026 at 10:58. JW's post ↗ · JW's image of the board ↗
No JW report since 10 September 2026. JW reported supplying adequately on 10 September 2026 at 20:08. The board read “Supplying adequately.” JW put it on its website 11 September 2026 at 08:46. JW's post ↗ · JW's image of the board ↗
Past outages
Each row is one outage: a stretch of time JW reported Randjieslaagte Reservoir at “poor pressure to no water” or “critically low”, newest first. An outage has no reported end when JW's reports stopped before it ended, or when it was still going at JW's last report; its length is then a minimum.
| Start | End | Length |
|---|---|---|
| 7 Aug 2026, 19:35 | No reported end | at least 2.4 days |
| 5 Jun 2026, 19:56 | 6 Jun 2026, 13:00 | 17 hours |
| 3 Jun 2026, 21:00 | 4 Jun 2026, 12:50 | 16 hours |
| 2 Jun 2026, 20:05 | 3 Jun 2026, 14:50 | 19 hours |
| 29 May 2026, 13:21 | 2 Jun 2026, 11:00 | 3.9 days |
| 9 Apr 2026, 20:55 | 10 Apr 2026, 13:50 | 17 hours |
| 3 Apr 2026, 10:35 | 4 Apr 2026, 10:00 | 23 hours |
| 15 Jul 2025, 16:05 | 15 Jul 2025, 21:40 | 6 hours |
| 8 Jul 2025, 15:10 | 9 Jul 2025, 09:45 | 19 hours |
| 2 Jul 2025, 08:24 | 2 Jul 2025, 13:30 | 5 hours |
| 1 Jul 2025, 17:45 | 1 Jul 2025, 22:14 | 4 hours |
| 14 Jun 2025, 21:20 | 15 Jun 2025, 10:35 | 13 hours |
| 10 Jun 2025, 20:15 | 12 Jun 2025, 08:20 | 36 hours |
| 9 Jun 2025, 21:35 | 10 Jun 2025, 09:15 | 12 hours |
| 6 Jun 2025, 08:20 | 9 Jun 2025, 08:15 | 3 days |
What JW's boards cannot tell you
- Whether water reaches your street or your tap.
- Which streets lose water first: JW warns of higher-lying areas but does not name the streets.
- Why a supply ran low, unless a JW notice gives a reason.
- Pipe bursts, tankers and valve work, which are not on the boards.
Source: JW's System Update boards and notices, read by us. The full list, and how this record is made.