watersearch

Marlboro 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 adequately on 29 September 2026 at 21:05. The board read “Supplying adequately.” 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.

Capacity
37,700 kilolitres
Demand
25,888 kilolitres a day
Storage
35 hours
JW's page
Marlboro Reservoir ↗

Suburbs it supplies

JW links 27 suburbs to Marlboro Reservoir. Most also draw on other supplies.

Airdlin AH, Barbeque Downs, Bryanston, Buccleuch, Duxberry, Eastgate, Edenburg, Gallo Manor, Jukskei Heights, Jukskei View, Khyber Rock, Marise AH, Morningside, Morningside AH, Morningside Manor, Paulshof, Paulshof AH, Petervale, River Club, Rivonia, Sandown, Sunninghill, Sunninghill Park AH, The Woodlands, Wendywood, Woodlands, Woodmead.

Up the supply chain

On 22 July 2025, JW reported Marlboro Reservoir critically low

Where the water comes from, top to bottom, and what JW reported for each part on 22 July 2025. A suburb draws on every supply listed at once; JW does not say which street each one reaches.

Showing 22 July 2025. Other days: 22 July 2025, 1 July 2025, or the last day.

Bulk supply

Palmiet Pump Station (Rand Water)

JW's boards carry no status for Rand Water's stations.

Feeds the Sandton system: stated by JW source ↗

System

Sandton system

JW reported 2 of 11 supplies in it short of water.

Fed from Palmiet Pump Station (Rand Water): stated by JW source ↗

Supply

Marlboro Reservoir

JW reported critically low.

As printed: “16:45 Low, recovery interventions in progress.”; “21:00 Critically low. Interventions in progress.”

In the Sandton system: listed on a JW page 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 22 July 2025, JW reported Marlboro Reservoir critically low”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/reservoir/marlboro-reservoir#fig-chain

The data as a table
PartWhat it isFeedsHow we knowOn 22 July 2025
Palmiet Pump Station (Rand Water)Rand Water stationthe Sandton systemstated by JWNo JW status for it
Sandton systemSystemJW's system page2 of 11 supplies short of water; 0 with no report
Marlboro ReservoirReservoirJW's page or noticecritically low

Marlboro Reservoir over time

In 2026 so far, JW reported Marlboro Reservoir short of water on 0 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 282 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: Marlboro Reservoir: no report from 25 July 2025 to 31 January 2026.

2025
Mar3 Mar: supplying adequately4 Mar: no report5 Mar: supplying adequately6 Mar: supplying adequately7 Mar: supplying adequately8 Mar: supplying adequately9 Mar: supplying adequately10 Mar: no report11 Mar: supplying fairly12 Mar: supplying fairly13 Mar: supplying fairly14 Mar: supplying adequately15 Mar: no report16 Mar: no report17 Mar: supplying adequately18 Mar: supplying adequately19 Mar: supplying adequately20 Mar: supplying adequately21 Mar: no report22 Mar: no report23 Mar: no report24 Mar: supplying adequately25 Mar: supplying adequately26 Mar: supplying adequately27 Mar: supplying adequately28 Mar: no report29 Mar: no report30 Mar: no report31 Mar: no report0
Apr1 Apr: supplying adequately2 Apr: supplying adequately3 Apr: supplying adequately4 Apr: supplying adequately5 Apr: no report6 Apr: no report7 Apr: supplying adequately8 Apr: no report9 Apr: supplying adequately10 Apr: no report11 Apr: supplying adequately12 Apr: no report13 Apr: no report14 Apr: no report15 Apr: no report16 Apr: no report17 Apr: supplying adequately18 Apr: no report19 Apr: no report20 Apr: no report21 Apr: no report22 Apr: supplying adequately23 Apr: no report24 Apr: no report25 Apr: supplying adequately26 Apr: no report27 Apr: no report28 Apr: supplying adequately29 Apr: supplying adequately30 Apr: supplying adequately0
May1 May: supplying adequately2 May: no report3 May: supplying adequately4 May: no report5 May: supplying adequately6 May: supplying adequately7 May: no report8 May: no report9 May: supplying adequately10 May: supplying adequately11 May: supplying adequately12 May: supplying adequately13 May: no report14 May: no report15 May: no report16 May: no report17 May: no report18 May: no report19 May: no report20 May: no report21 May: no report22 May: supplying fairly23 May: supplying adequately24 May: no report25 May: no report26 May: supplying adequately27 May: no report28 May: no report29 May: no report30 May: no report31 May: no report0
Jun1 Jun: no report2 Jun: no report3 Jun: supplying adequately4 Jun: supplying adequately5 Jun: supplying adequately6 Jun: supplying fairly7 Jun: supplying fairly8 Jun: supplying fairly9 Jun: supplying fairly10 Jun: supplying fairly11 Jun: supplying fairly12 Jun: supplying fairly13 Jun: supplying fairly14 Jun: supplying fairly15 Jun: supplying adequately16 Jun: supplying adequately17 Jun: supplying adequately18 Jun: supplying fairly19 Jun: supplying adequately20 Jun: supplying fairly21 Jun: supplying fairly22 Jun: supplying fairly23 Jun: supplying fairly24 Jun: supplying fairly25 Jun: supplying fairly26 Jun: supplying fairly27 Jun: supplying fairly28 Jun: supplying fairly29 Jun: supplying fairly30 Jun: supplying fairly0
Jul1 Jul: critically low2 Jul: poor pressure to no water3 Jul: supplying fairly4 Jul: supplying fairly5 Jul: supplying fairly6 Jul: supplying fairly7 Jul: supplying fairly8 Jul: supplying fairly9 Jul: supplying fairly10 Jul: supplying fairly11 Jul: supplying adequately12 Jul: supplying adequately13 Jul: supplying fairly14 Jul: supplying fairly15 Jul: supplying fairly16 Jul: poor pressure in places17 Jul: supplying fairly18 Jul: poor pressure in places19 Jul: low20 Jul: supplying fairly21 Jul: overnight closure22 Jul: critically low23 Jul: no report24 Jul: supplying fairly25 Jul: no report26 Jul: no report27 Jul: no report28 Jul: no report29 Jul: no report30 Jul: no report31 Jul: no report3
AugNo JW boards, Aug 2025 to Jan 2026
2026
Feb1 Feb: supplying adequately2 Feb: supplying fairly3 Feb: supplying fairly4 Feb: supplying fairly5 Feb: no report6 Feb: no report7 Feb: supplying adequately8 Feb: supplying adequately9 Feb: supplying adequately10 Feb: no report11 Feb: no report12 Feb: no report13 Feb: no report14 Feb: no report15 Feb: no report16 Feb: no report17 Feb: no report18 Feb: no report19 Feb: no report20 Feb: no report21 Feb: no report22 Feb: no report23 Feb: no report24 Feb: no report25 Feb: no report26 Feb: no report27 Feb: no report28 Feb: no report0
Mar1 Mar: no report2 Mar: no report3 Mar: no report4 Mar: no report5 Mar: no report6 Mar: no report7 Mar: no report8 Mar: no report9 Mar: no report10 Mar: no report11 Mar: supplying fairly12 Mar: supplying adequately13 Mar: supplying adequately14 Mar: supplying adequately15 Mar: supplying fairly16 Mar: supplying fairly17 Mar: low18 Mar: low19 Mar: supplying fairly20 Mar: supplying adequately21 Mar: supplying adequately22 Mar: supplying adequately23 Mar: supplying adequately24 Mar: supplying adequately25 Mar: supplying adequately26 Mar: supplying adequately27 Mar: supplying adequately28 Mar: supplying adequately29 Mar: supplying adequately30 Mar: supplying adequately31 Mar: supplying adequately0
Apr1 Apr: supplying adequately2 Apr: supplying adequately3 Apr: supplying adequately4 Apr: supplying adequately5 Apr: supplying adequately6 Apr: supplying adequately7 Apr: supplying adequately8 Apr: supplying fairly9 Apr: supplying fairly10 Apr: supplying adequately11 Apr: supplying adequately12 Apr: supplying adequately13 Apr: supplying adequately14 Apr: supplying adequately15 Apr: supplying adequately16 Apr: supplying fairly17 Apr: supplying adequately18 Apr: supplying adequately19 Apr: supplying adequately20 Apr: supplying adequately21 Apr: supplying adequately22 Apr: supplying adequately23 Apr: supplying adequately24 Apr: supplying adequately25 Apr: supplying adequately26 Apr: supplying adequately27 Apr: supplying adequately28 Apr: supplying adequately29 Apr: supplying adequately30 Apr: supplying adequately0
May1 May: supplying adequately2 May: supplying adequately3 May: supplying adequately4 May: supplying adequately5 May: supplying adequately6 May: supplying adequately7 May: poor pressure in places8 May: poor pressure in places9 May: supplying adequately10 May: supplying adequately11 May: supplying adequately12 May: supplying adequately13 May: supplying adequately14 May: supplying adequately15 May: supplying adequately16 May: supplying adequately17 May: supplying adequately18 May: supplying adequately19 May: supplying adequately20 May: supplying adequately21 May: supplying adequately22 May: supplying adequately23 May: supplying adequately24 May: supplying adequately25 May: supplying adequately26 May: supplying adequately27 May: supplying adequately28 May: supplying adequately29 May: supplying adequately30 May: supplying adequately31 May: supplying fairly0
Jun1 Jun: supplying adequately2 Jun: supplying adequately3 Jun: supplying adequately4 Jun: supplying fairly5 Jun: supplying adequately6 Jun: supplying adequately7 Jun: supplying adequately8 Jun: supplying adequately9 Jun: supplying adequately10 Jun: supplying adequately11 Jun: supplying fairly12 Jun: supplying fairly13 Jun: supplying fairly14 Jun: supplying fairly15 Jun: supplying adequately16 Jun: supplying adequately17 Jun: supplying adequately18 Jun: supplying adequately19 Jun: supplying adequately20 Jun: supplying adequately21 Jun: supplying adequately22 Jun: supplying adequately23 Jun: supplying adequately24 Jun: supplying adequately25 Jun: supplying adequately26 Jun: supplying adequately27 Jun: supplying adequately28 Jun: supplying adequately29 Jun: supplying adequately30 Jun: supplying adequately0
Jul1 Jul: supplying adequately2 Jul: supplying adequately3 Jul: no report4 Jul: supplying adequately5 Jul: supplying adequately6 Jul: supplying adequately7 Jul: supplying adequately8 Jul: supplying adequately9 Jul: supplying adequately10 Jul: supplying adequately11 Jul: supplying adequately12 Jul: supplying adequately13 Jul: supplying adequately14 Jul: supplying adequately15 Jul: supplying adequately16 Jul: supplying adequately17 Jul: supplying adequately18 Jul: supplying adequately19 Jul: supplying fairly20 Jul: supplying adequately21 Jul: supplying adequately22 Jul: supplying fairly23 Jul: supplying adequately24 Jul: supplying adequately25 Jul: supplying adequately26 Jul: supplying adequately27 Jul: supplying adequately28 Jul: supplying adequately29 Jul: supplying adequately30 Jul: supplying adequately31 Jul: supplying adequately0
Aug1 Aug: no report2 Aug: no report3 Aug: supplying adequately4 Aug: supplying fairly5 Aug: supplying adequately6 Aug: supplying adequately7 Aug: supplying adequately8 Aug: supplying adequately9 Aug: no report10 Aug: no report11 Aug: no report12 Aug: supplying adequately13 Aug: supplying adequately14 Aug: supplying adequately15 Aug: no report16 Aug: no report17 Aug: supplying fairly18 Aug: supplying adequately19 Aug: supplying fairly20 Aug: supplying adequately21 Aug: supplying adequately22 Aug: no report23 Aug: no report24 Aug: supplying adequately25 Aug: supplying adequately26 Aug: supplying adequately27 Aug: supplying adequately28 Aug: supplying fairly29 Aug: no report30 Aug: no report31 Aug: supplying adequately0
Sep1 Sep: supplying adequately2 Sep: supplying adequately3 Sep: supplying adequately4 Sep: supplying adequately5 Sep: no report6 Sep: no report7 Sep: supplying adequately8 Sep: supplying adequately9 Sep: supplying adequately10 Sep: supplying adequately11 Sep: supplying adequately12 Sep: no report13 Sep: no report14 Sep: supplying adequately15 Sep: supplying adequately16 Sep: supplying adequately17 Sep: supplying adequately18 Sep: supplying adequately19 Sep: no report20 Sep: no report21 Sep: supplying adequately22 Sep: supplying adequately23 Sep: supplying adequately24 Sep: no report25 Sep: supplying adequately26 Sep: no report27 Sep: no report28 Sep: supplying adequately29 Sep: supplying adequately0
  • 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 Marlboro Reservoir short of water on 0 days”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/reservoir/marlboro-reservoir#fig-year

The data as a table
MonthDays reportedDays in recordAdequate or fairPoor pressure in places, or lowWarning: no water may occurPoor pressure to no waterCritically lowOvernight closure
March 202518291800000
April 202513301300000
May 202511311100000
June 202528302800000
July 202523311630121
August 2025031000000
September 2025030000000
October 2025031000000
November 2025030000000
December 2025031000000
January 2026031000000
February 2026728700000
March 202621311920000
April 202630303000000
May 202631312920000
June 202630303000000
July 202630313000000
August 202620312000000
September 202620292000000

From April to September 2026 (six months), JW reported Marlboro Reservoir short of water on 0 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: 0 days short of water for Marlboro Reservoir, from 189 days with a report. The median supply in the city: 4 days.

102030Mar 2025: 0 days short of water, 0 critically low; reported 18 of 29 days2025MApr 2025: 0 days short of water, 0 critically low; reported 13 of 30 daysAMay 2025: 0 days short of water, 0 critically low; reported 11 of 31 daysMJun 2025: 0 days short of water, 0 critically low; reported 28 of 30 daysJJul 2025: 3 days short of water, 2 critically low; reported 23 of 31 daysJAug 2025: 0 days short of water, 0 critically low; reported 0 of 31 daysgapASep 2025: 0 days short of water, 0 critically low; reported 0 of 30 daysgapSOct 2025: 0 days short of water, 0 critically low; reported 0 of 31 daysgapONov 2025: 0 days short of water, 0 critically low; reported 0 of 30 daysgapNDec 2025: 0 days short of water, 0 critically low; reported 0 of 31 daysgapDJan 2026: 0 days short of water, 0 critically low; reported 0 of 31 daysgap2026JFeb 2026: 0 days short of water, 0 critically low; reported 7 of 28 daysFMar 2026: 0 days short of water, 0 critically low; reported 21 of 31 daysMApr 2026: 0 days short of water, 0 critically low; reported 30 of 30 daysAMay 2026: 0 days short of water, 0 critically low; reported 31 of 31 daysMJun 2026: 0 days short of water, 0 critically low; reported 30 of 30 daysJJul 2026: 0 days short of water, 0 critically low; reported 30 of 31 daysJAug 2026: 0 days short of water, 0 critically low; reported 20 of 31 daysASep 2026: 0 days short of water, 0 critically low; reported 20 of 29 daysScity median 0city median 0city median 0city median 0city median 0city median 0city median 0city median 0city median 0city median 0city median 1city median 0city median 0

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 Marlboro Reservoir short of water on 0 of 161 reported days”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/reservoir/marlboro-reservoir#fig-days

The data as a table
MonthDays short of waterDays reportedDays in recordCity median
March 2025018290
April 2025013300
May 2025011310
June 2025028300
July 2025323310
August 2025gap031
September 2025gap030
October 2025gap031
November 2025gap030
December 2025gap031
January 2026gap031
February 202607280
March 2026021310
April 2026030300
May 2026031310
June 2026030300
July 2026030311
August 2026020310
September 2026020290

On Marlboro Reservoir, its last 2 outages lasted 20 hours and at least 36 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 2 outages on Marlboro 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 2).

012daysFrom 1 July 2025: 20 hoursFrom 22 July 2025: at least 36 hours, no reported endlongest 36 hours

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 Marlboro Reservoir, its last 2 outages lasted 20 hours and at least 36 hours”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/reservoir/marlboro-reservoir#fig-base-rate

The data as a table
StartedLengthEnded
22 July 2025at least 36 hoursno reported end
1 July 202520 hours2 July 2025

JW's notices gave 16 end times for Marlboro Reservoir. By the stated time, JW's boards showed the water back on none of the 15 that have passed

The water came back after the stated time 15 times; half of those times it was back within 23 hours 50 minutes 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 22 notices.

Jul 2025Jan 2026Jul 2026last board 29 Sep 2026Stated end 25 Mar 2025 17:00; recovered 26 Mar 2025 13:45Stated end 25 Mar 2025: 20 hours 45 minutes lateStated end 6 May 2025 18:00; recovered 10 May 2025 14:00Stated end 6 May 2025: 4 days lateStated end 13 May 2025 18:00; recovered 22 May 2025 19:00Stated end 13 May 2025: 9 days lateStated end 17 May 2025 00:00; recovered 22 May 2025 19:00Stated end 17 May 2025: 6 days lateStated end 12 Jun 2025 22:00; recovered 13 Jun 2025 21:50Stated end 12 Jun 2025: 23 hours 50 minutes lateStated end 8 Jul 2025 18:00; recovered 8 Jul 2025 21:35Stated end 8 Jul 2025: 3 hours 35 minutes lateStated end 15 Jul 2025 21:00; recovered 15 Jul 2025 21:40Stated end 15 Jul 2025: 40 minutes lateStated end 2 Sep 2025 16:00; recovered 1 Feb 2026 11:20Stated end 2 Sep 2025: 152 days lateStated end 9 Sep 2025 18:00; recovered 1 Feb 2026 11:20Stated end 9 Sep 2025: 145 days lateStated end 6 May 2026 21:00; recovered 9 May 2026 19:55Stated end 6 May 2026: 3 days lateStated end 9 Jun 2026 21:00; recovered 10 Jun 2026 14:35Stated end 9 Jun 2026: 17 hours 35 minutes lateStated end 25 Jun 2026 21:00; recovered 26 Jun 2026 13:40Stated end 25 Jun 2026: 16 hours 40 minutes lateStated end 2 Jul 2026 12:00; recovered 6 Jul 2026 10:40Stated end 2 Jul 2026: 4 days lateStated end 22 Sep 2026 19:00; recovered 23 Sep 2026 17:45Stated end 22 Sep 2026: 22 hours 45 minutes lateStated end 29 Sep 2026 21:00; recovered 29 Sep 2026 21:05Stated end 29 Sep 2026: 5 minutes lateStated end 1 Oct 2026 21:00; the stated end is still aheadStated end 1 Oct 2026: still ahead

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 16 end times for Marlboro Reservoir. By the stated time, JW's boards showed the water back on none of the 15 that have passed”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/reservoir/marlboro-reservoir#fig-stated

The data as a table
NoticeSupplyReason JW gaveStated endFirst board showing recoveryAgainst the stated time
25 March 2025Marlboro ReservoirRepairs to a burst 600mm pipe25 March 2025 17:0026 March 2025 13:4520 hours 45 minutes after the stated time
6 May 2025Marlboro ReservoirRepairs to a burst 350mm steel pipe6 May 2025 18:0010 May 2025 14:003 days 20 hours after the stated time
9 May 2025Marlboro ReservoirRepair leak on the pipeline13 May 2025 18:0022 May 2025 19:009 days 1 hour after the stated time
16 May 2025Marlboro ReservoirRepair a 375mm steel pipe17 May 2025 00:0022 May 2025 19:005 days 19 hours after the stated time
12 June 2025Marlboro ReservoirRepairing a burst 200mm diameter AC pipe.12 June 2025 22:0013 June 2025 21:5023 hours 50 minutes after the stated time
8 July 2025Marlboro ReservoirRepairing a burst water pipe8 July 2025 18:008 July 2025 21:353 hours 35 minutes after the stated time
14 July 2025Marlboro ReservoirRepairs to burst 160mm HDPE pipe15 July 2025 21:0015 July 2025 21:4040 minutes after the stated time
2 September 2025Marlboro ReservoirTie-in new water pipe to existing mainline; Tie-in of new water pipe to existing mainline2 September 2025 16:001 February 2026 11:20151 days 19 hours after the stated time
9 September 2025Marlboro ReservoirTie-in of new water pipe to existing mainline9 September 2025 18:001 February 2026 11:20144 days 17 hours after the stated time
6 May 2026Marlboro ReservoirCommissioning of new water infrastructure6 May 2026 21:009 May 2026 19:552 days 22 hours after the stated time
9 June 2026Marlboro ReservoirCommissioning of new water infrastructure9 June 2026 21:0010 June 2026 14:3517 hours 35 minutes after the stated time
25 June 2026Marlboro ReservoirThe infrastructure upgrades along Surrey and Walton Road.25 June 2026 21:0026 June 2026 13:4016 hours 40 minutes after the stated time
2 July 2026Marlboro ReservoirDummy run for the preparation of point repair of steel pipeline with a diameter of 375 mm.2 July 2026 12:006 July 2026 10:403 days 22 hours after the stated time
22 September 2026Marlboro ReservoirTie-in of newly installed pipes to the existing system.22 September 2026 19:0023 September 2026 17:4522 hours 45 minutes after the stated time
29 September 2026Marlboro ReservoirEmergency repairs on the 600mm diameter supply line from the Grand Central Reservoir29 September 2026 21:0029 September 2026 21:055 minutes after the stated time
1 October 2026Marlboro ReservoirEmergency repairs on the 600mm dia supply line from the Grand central Reservoir; Emergency repairs on the 600mm diameter supply line from the Grand Central Reservoir1 October 2026 21:00the stated end is still ahead

In words

2026 so far: JW reported it at “poor pressure to no water” or “critically low” on 0 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 3 days. JW published a report for it on 93 of the 304 days in the record; the other 211 days have no report, and we do not count them as normal. The median supply in the city had 1 such day.

The last 2 outages JW reported on this supply lasted a median of at least 28 hours; the longest at least 36 hours. 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 Marlboro Reservoir on 3 March 2025 and last on 29 September 2026: 480 statuses on 480 boards, over 282 days. 6 of those statuses announced a scheduled overnight closure, which we count apart, never as an outage.

Month by month

Days JW reported Marlboro 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.

MonthDays short of waterDays with a reportSame month a year earlier
March 2025018
April 2025013
May 2025011
June 2025028
July 2025323
August 2025No JW report this month
September 2025No JW report this month
October 2025No JW report this month
November 2025No JW report this month
December 2025No JW report this month
January 2026No JW report this month
February 202607
March 20260210 of 18 days
April 2026030Too few reports to compare
May 2026031Too few reports to compare
June 20260300 of 28 days
July 20260303 of 23 days
August 2026020Too few reports to compare
September 2026020Too few reports to compare

Recent JW reports

The last 20 statuses JW printed for Marlboro Reservoir, newest first.

JW reported supplying adequately on 29 September 2026 at 21:05. The board read “Supplying adequately.” 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 Marlboro 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.

StartEndLength
22 Jul 2025, 21:00No reported endat least 36 hours
1 Jul 2025, 17:452 Jul 2025, 13:3020 hours

What JW's boards cannot tell you

Source: JW's System Update boards and notices, read by us. The full list, and how this record is made.