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: 11 days short of water for Yeoville Reservoir, from 185 days with a report; 5 days for Parktown 2 Reservoir, from 185. 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 Killarney's 2 supplies short of water on 13 days
3 March 2025 to 29 September 2026, from 552 days with a JW report.
Parktown 2 Reservoir
In 2026 so far: 5 days short of water, from 185 days with a JW report.
11531short
2025
Mar0
Apr0
May0
Jun0
Jul3
AugNo JW boards, Aug 2025 to Jan 2026
2026
Feb0
Mar0
Apr0
May1
Jun2
Jul2
Aug0
Sep0
Yeoville Reservoir
In 2026 so far: 11 days short of water, from 185 days with a JW report.
11531short
2025
Mar0
Apr0
May1
Jun0
Jul5
AugNo JW boards, Aug 2025 to Jan 2026
2026
Feb0
Mar0
Apr0
May2
Jun2
Jul4
Aug1
Sep2
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 at least one of Killarney's 2 supplies short of water on 13 days”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/suburb/killarney#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
Parktown 2 Reservoir
March 2025
18
29
18
0
0
0
0
0
Parktown 2 Reservoir
April 2025
13
30
13
0
0
0
0
0
Parktown 2 Reservoir
May 2025
12
31
12
0
0
0
0
0
Parktown 2 Reservoir
June 2025
28
30
28
0
0
0
0
0
Parktown 2 Reservoir
July 2025
24
31
21
0
0
1
2
0
Parktown 2 Reservoir
August 2025
0
31
0
0
0
0
0
0
Parktown 2 Reservoir
September 2025
0
30
0
0
0
0
0
0
Parktown 2 Reservoir
October 2025
0
31
0
0
0
0
0
0
Parktown 2 Reservoir
November 2025
0
30
0
0
0
0
0
0
Parktown 2 Reservoir
December 2025
0
31
0
0
0
0
0
0
Parktown 2 Reservoir
January 2026
0
31
0
0
0
0
0
0
Parktown 2 Reservoir
February 2026
6
28
6
0
0
0
0
0
Parktown 2 Reservoir
March 2026
20
31
20
0
0
0
0
0
Parktown 2 Reservoir
April 2026
29
30
29
0
0
0
0
0
Parktown 2 Reservoir
May 2026
30
31
28
0
0
0
1
0
Parktown 2 Reservoir
June 2026
29
30
25
2
0
0
2
0
Parktown 2 Reservoir
July 2026
29
31
24
3
0
0
2
0
Parktown 2 Reservoir
August 2026
22
31
17
5
0
0
0
0
Parktown 2 Reservoir
September 2026
20
29
20
0
0
0
0
0
Yeoville Reservoir
March 2025
18
29
18
0
0
0
0
0
Yeoville Reservoir
April 2025
13
30
13
0
0
0
0
0
Yeoville Reservoir
May 2025
13
31
12
0
0
1
0
0
Yeoville Reservoir
June 2025
20
30
20
0
0
0
0
0
Yeoville Reservoir
July 2025
23
31
17
1
0
5
0
0
Yeoville Reservoir
August 2025
0
31
0
0
0
0
0
0
Yeoville Reservoir
September 2025
0
30
0
0
0
0
0
0
Yeoville Reservoir
October 2025
0
31
0
0
0
0
0
0
Yeoville Reservoir
November 2025
0
30
0
0
0
0
0
0
Yeoville Reservoir
December 2025
0
31
0
0
0
0
0
0
Yeoville Reservoir
January 2026
0
31
0
0
0
0
0
0
Yeoville Reservoir
February 2026
6
28
6
0
0
0
0
0
Yeoville Reservoir
March 2026
20
31
20
0
0
0
0
0
Yeoville Reservoir
April 2026
29
30
29
0
0
0
0
0
Yeoville Reservoir
May 2026
30
31
26
2
0
0
2
0
Yeoville Reservoir
June 2026
29
30
26
1
0
2
0
0
Yeoville Reservoir
July 2026
29
31
20
3
1
1
3
1
Yeoville Reservoir
August 2026
22
31
18
3
0
0
1
0
Yeoville Reservoir
September 2026
20
29
18
0
0
1
1
0
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.
In short
The latest JW report on this site is from 29 September 2026; the site last read JW's website on 1 October. Parktown 2 Reservoir and Yeoville Reservoir were supplying fairly or better. This year Yeoville Reservoir was short of water on 11 of the 185 days JW reported it. A typical reservoir or tower in the city had 4 such days. On Yeoville Reservoir, half of its last 9 outages lasted at least 36 hours; the longest since March 2025 lasted 2.8 days. No JW notice we have read names Yeoville Reservoir. None of the 24 passed end dates on its page was met.
JW reported 14 outages on Killarney's supplies since March 2025. The longest lasted 2.8 days. Every outage, with how long it lasted: Parktown 2 Reservoir and Yeoville Reservoir.
JW's end dates
JW posted 31 notices with an end date that list a suburb or system Killarney'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 32 end times that have passed. Each end date against what happened: Parktown 2 Reservoir and Yeoville Reservoir.
Under strain
In 2026 so far, Killarney had 27 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. Killarney 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.