Grasmere
Last Johannesburg Water (JW) report: Tue 29 Sep 2026, 20:10
At 13:10 JW wrote: “Critically low. Poor pressure to no water is expected.”
Then shut for the night. At 20:10 JW wrote: “Outlet closed overnight.”
On 3 more days JW printed a warning. Ennerdale: 32 of 194. A typical reservoir or tower in the city had 4.
JW lists Grasmere under both supplies and does not say which streets each one reaches.
Your street may differ: each report covers a reservoir or tower and the area it feeds, and higher streets lose water first. What JW's words mean
Day by day
In 2026 so far: 39 days short of water for Lawley Reservoir, from 194 days with a report; 32 days for Ennerdale Reservoir, from 194. A typical supply in the city, the median one (half had fewer), had 4 days.
Each square is a day, as JW reported it for a supply: a reservoir or tower that JW reports on. The number at the right is the month's days short of water.
In 2026 so far, JW reported at least one of Grasmere's 2 supplies short of water on 58 days
3 March 2025 to 29 September 2026, from 572 days with a JW report.
Ennerdale Reservoir
In 2026 so far: 32 days short of water, from 194 days with a JW report.
Lawley Reservoir
In 2026 so far: 39 days short of water, from 194 days with a JW report.
- water as normal
- supplying fairly
- JW warned
- low, or weak in places
- short of water
- critically low
- shut for the night
- 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 at least one of Grasmere's 2 supplies short of water on 58 days”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/suburb/grasmere#fig-year
The data as a table
| Supply | 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 |
|---|---|---|---|---|---|---|---|---|---|
| Ennerdale Reservoir | March 2025 | 18 | 29 | 16 | 0 | 0 | 0 | 2 | 0 |
| Ennerdale Reservoir | April 2025 | 12 | 30 | 11 | 0 | 0 | 0 | 1 | 0 |
| Ennerdale Reservoir | May 2025 | 12 | 31 | 12 | 0 | 0 | 0 | 0 | 0 |
| Ennerdale Reservoir | June 2025 | 26 | 30 | 16 | 3 | 0 | 1 | 6 | 0 |
| Ennerdale Reservoir | July 2025 | 24 | 31 | 13 | 1 | 0 | 0 | 10 | 0 |
| Ennerdale Reservoir | August 2025 | 0 | 31 | 0 | 0 | 0 | 0 | 0 | 0 |
| Ennerdale Reservoir | September 2025 | 0 | 30 | 0 | 0 | 0 | 0 | 0 | 0 |
| Ennerdale Reservoir | October 2025 | 0 | 31 | 0 | 0 | 0 | 0 | 0 | 0 |
| Ennerdale Reservoir | November 2025 | 0 | 30 | 0 | 0 | 0 | 0 | 0 | 0 |
| Ennerdale Reservoir | December 2025 | 0 | 31 | 0 | 0 | 0 | 0 | 0 | 0 |
| Ennerdale Reservoir | January 2026 | 0 | 31 | 0 | 0 | 0 | 0 | 0 | 0 |
| Ennerdale Reservoir | February 2026 | 7 | 28 | 0 | 4 | 0 | 1 | 2 | 0 |
| Ennerdale Reservoir | March 2026 | 23 | 31 | 8 | 10 | 0 | 1 | 4 | 0 |
| Ennerdale Reservoir | April 2026 | 30 | 30 | 9 | 11 | 0 | 4 | 6 | 0 |
| Ennerdale Reservoir | May 2026 | 30 | 31 | 10 | 12 | 0 | 0 | 8 | 0 |
| Ennerdale Reservoir | June 2026 | 30 | 30 | 11 | 17 | 0 | 0 | 2 | 0 |
| Ennerdale Reservoir | July 2026 | 31 | 31 | 25 | 1 | 0 | 0 | 3 | 2 |
| Ennerdale Reservoir | August 2026 | 22 | 31 | 17 | 3 | 0 | 0 | 0 | 2 |
| Ennerdale Reservoir | September 2026 | 21 | 29 | 10 | 9 | 0 | 1 | 0 | 1 |
| Lawley Reservoir | March 2025 | 18 | 29 | 13 | 0 | 0 | 0 | 5 | 0 |
| Lawley Reservoir | April 2025 | 12 | 30 | 8 | 0 | 0 | 0 | 4 | 0 |
| Lawley Reservoir | May 2025 | 12 | 31 | 12 | 0 | 0 | 0 | 0 | 0 |
| Lawley Reservoir | June 2025 | 26 | 30 | 17 | 4 | 0 | 0 | 5 | 0 |
| Lawley Reservoir | July 2025 | 24 | 31 | 23 | 0 | 0 | 0 | 1 | 0 |
| Lawley Reservoir | August 2025 | 0 | 31 | 0 | 0 | 0 | 0 | 0 | 0 |
| Lawley Reservoir | September 2025 | 0 | 30 | 0 | 0 | 0 | 0 | 0 | 0 |
| Lawley Reservoir | October 2025 | 0 | 31 | 0 | 0 | 0 | 0 | 0 | 0 |
| Lawley Reservoir | November 2025 | 0 | 30 | 0 | 0 | 0 | 0 | 0 | 0 |
| Lawley Reservoir | December 2025 | 0 | 31 | 0 | 0 | 0 | 0 | 0 | 0 |
| Lawley Reservoir | January 2026 | 0 | 31 | 0 | 0 | 0 | 0 | 0 | 0 |
| Lawley Reservoir | February 2026 | 7 | 28 | 0 | 2 | 0 | 1 | 4 | 0 |
| Lawley Reservoir | March 2026 | 23 | 31 | 13 | 8 | 0 | 1 | 1 | 0 |
| Lawley Reservoir | April 2026 | 30 | 30 | 19 | 8 | 0 | 2 | 1 | 0 |
| Lawley Reservoir | May 2026 | 30 | 31 | 11 | 7 | 0 | 0 | 6 | 6 |
| Lawley Reservoir | June 2026 | 30 | 30 | 21 | 3 | 0 | 0 | 3 | 3 |
| Lawley Reservoir | July 2026 | 31 | 31 | 14 | 2 | 0 | 0 | 12 | 3 |
| Lawley Reservoir | August 2026 | 22 | 31 | 7 | 7 | 3 | 1 | 0 | 4 |
| Lawley Reservoir | September 2026 | 21 | 29 | 9 | 3 | 0 | 0 | 7 | 2 |
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”, as happening or expected (expected most often means higher streets). A warning that it may occur does not count.
Is anyone fixing it?
No JW notice we have read names Lawley Reservoir.
In short
The latest JW report on this site is from 29 September 2026; the site last read JW's website on 1 October. That day Lawley Reservoir was critically low at 13:10 and closed overnight on purpose at 20:10. Ennerdale Reservoir was supplying fairly. This year Lawley Reservoir was short of water on 39 of the 194 days JW reported it. A typical reservoir or tower in the city had 4 such days. On Lawley Reservoir, half of its last 10 outages lasted at least 30 hours; the longest since March 2025 lasted 4.1 days. No JW notice we have read names Lawley Reservoir. None of the 3 passed end dates on its page was met.
Latest JW report
Lawley Reservoir, 29 September 2026: critically low at 13:10 (JW: “Critically low. Poor pressure to no water is expected”), then closed overnight on purpose at 20:10 (JW: “Outlet closed overnight”).
JW put it on its website 1 October 2026 at 13:40. JW's page for this board ↗ · JW's image of the board ↗
Ennerdale Reservoir, 29 September 2026: supplying fairly at 13:10 (JW: “Supplying fairly”), then closed overnight on purpose at 20:10 (JW: “Outlet closed overnight”).
JW put it on its website 1 October 2026 at 13:40. JW's page for this board ↗ · JW's image of the board ↗
Also on OurPower ↗.
Where Grasmere gets its water
Grasmere draws on two supplies at once: Ennerdale Reservoir and Lawley Reservoir. JW does not say which street each one reaches.
| Supply | System | How JW links it to Grasmere |
|---|---|---|
| Ennerdale Reservoir | Deep South | Listed on JW's pages, as Grasmere. Source 1 ↗ Source 2 ↗ |
| Lawley Reservoir | Deep South | Listed on JW's pages, as Grasmere. Source 1 ↗ |
Outages
JW reported 75 outages on Grasmere's supplies since March 2025. The longest lasted 5.6 days. Every outage, with how long it lasted: Ennerdale Reservoir and Lawley Reservoir.
JW's end dates
JW posted 2 notices with an end date that list a suburb or system Grasmere's supplies feed. Most name only suburbs, not the reservoir or tower, so the summary at the top uses only a notice that names the supply itself. By the stated time JW's boards showed the water back on none of the 6 end times that have passed. Each end date against what happened: Ennerdale Reservoir and Lawley Reservoir.
Up the supply chain
Grasmere's supplies are in JW's Deep South system.
On 23 September 2026, JW reported 1 of Grasmere's 2 supplies short of water
Where the water comes from, top to bottom, and what JW reported for each part on 23 September 2026. A suburb draws on every supply listed at once; JW does not say which street each one reaches.
Showing 23 September 2026. Other days: 29 September 2026, 23 September 2026, 14 September 2026, 11 September 2026, 4 September 2026, 1 September 2026, or the last day.
Bulk supply
JW's boards carry no status for pump stations.
Feeds Ennerdale Reservoir, Lawley Reservoir: stated by JW source ↗JW's boards carry no status for Rand Water's stations.
Feeds Daleside Booster Station: stated by JW source ↗System
JW reported 1 of 7 supplies in it short of water; 1 had no report.
Supplies, all at once
JW reported supplying fairly.
As printed: “11:40 Supplying fairly.”; “18:30 Supplying fairly”
In the Deep South system: listed on a JW page source ↗ Fed from Daleside Booster Station: stated by JW source ↗ Supplies Grasmere: listed on JW's pagesJW reported critically low.
As printed: “11:40 Supplying fairly.”; “18:30 Critically low and supplying. Poor pressure to no flow is expected in some areas”
In the Deep South system: listed on a JW page source ↗ Fed from Daleside Booster Station: stated by JW source ↗ Supplies Grasmere: listed on JW's pagesSuburb
No JW report for taps. See the supplies above: when they are supplying, a tap can still be dry, most often in higher streets.
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 23 September 2026, JW reported 1 of Grasmere's 2 supplies short of water”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/suburb/grasmere#fig-chain
The data as a table
| Part | What it is | Feeds | How we know | On 23 September 2026 |
|---|---|---|---|---|
| Daleside Booster Station | Pump station | Ennerdale Reservoir, Lawley Reservoir | stated by JW | No JW status for it |
| Zwartkopjes Pump Station (Rand Water) | Rand Water station | Daleside Booster Station | stated by JW | No JW status for it |
| Deep South system | System | JW's system page | 1 of 7 supplies short of water; 1 with no report | |
| Ennerdale Reservoir | Reservoir | Grasmere | JW's page or notice | supplying fairly |
| Lawley Reservoir | Reservoir | Grasmere | JW's page or notice | critically low |
Under strain
In 2026 so far, Grasmere had 115 days under strain: days when JW reported any of its supplies low or worse, or warned that higher-lying areas may lose water. This is a wider count than days short of water.
The network is linked. Grasmere draws on all its supplies at once, and when one runs low the others carry more. At such times JW's boards sometimes warn of “poor pressure to no water in higher-lying areas”: under strain, higher streets lose water first. JW does not say which streets those are.
What JW's boards cannot tell you
JW's boards report reservoirs and towers, so some things are not in this record:
- 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.