City Water PictureCityMaharashtra

Mumbai water picture

Water availability is classified as Stress.

The official published classification is Stress for both 2025 and 2050.

Where supplied water comes from

ViharVihar water treatment facility
TulsiTulsi water treatment facility
TansaBhandup Complex treatment system
Lower Vaitarna (Modak Sagar)Bhandup Complex treatment system

Groundwater context

Before monsoon depth band: 2–5 metres below the ground surface; Exact published band: 2 to 5 mbgl · 2023-24
After monsoon depth band: within 2 metres of the ground surface; Exact published band: 0 to 2 mbgl · 2023-24

Latest groundwater-quality evidence

No station-level numeric quality result is published on this page. The reviewed samples do not establish city-wide or tap-water quality.

Official institutions and periods

NITI Aayog; Central Ground Water Board; Brihanmumbai Municipal Corporation

2021-22 · 2022-23 · 2023-24 · 2025 · 2050 · 2024 assessment · 2024-25

This does not establish today’s household supply, pressure, continuity or tap-water safety.

See the full evidence and limitations

Where supplied water comes from

These relationships come from official utility or government publications. JalWater keeps operating, historical, proposed, and unproven evidence separate.

Operating relationships in reviewed official evidence

Vihar · Vihar water treatment facility

Operating in the reviewed official evidence · 2024-25

Reservoir Lake

BMC names Vihar among seven impounded raw-water resources from which Mumbai receives water and lists it in the source table.

Authority: Brihanmumbai Municipal Corporation, Hydraulic Engineer Department
Geographic scope: BMC water-supply system; the publication does not establish service to every property or ward.
Evidence locator: PDF pages 32-33, Water Supply paragraph and Table 9.1 row 1
Limitation: The publication proves the system relationship for 2024-25, not today's availability, source share, household delivery, pressure or safety.

Source: Brihanmumbai Municipal Corporation · Environment Status Report 2024-25. Open official source

Tulsi · Tulsi water treatment facility

Operating in the reviewed official evidence · 2024-25

Reservoir Lake

BMC names Tulsi among seven impounded raw-water resources from which Mumbai receives water and lists it in the source table.

Authority: Brihanmumbai Municipal Corporation, Hydraulic Engineer Department
Geographic scope: BMC water-supply system; the publication does not establish service to every property or ward.
Evidence locator: PDF pages 32-33, Water Supply paragraph and Table 9.1 row 2
Limitation: The publication proves the system relationship for 2024-25, not today's availability, source share, household delivery, pressure or safety.

Source: Brihanmumbai Municipal Corporation · Environment Status Report 2024-25. Open official source

Tansa · Bhandup Complex treatment system

Operating in the reviewed official evidence · 2024-25

Reservoir Lake

BMC names Tansa among the seven resources and identifies Tansa water in the Bhandup Complex raw-water mix.

Authority: Brihanmumbai Municipal Corporation, Hydraulic Engineer Department
Geographic scope: BMC water-supply and Bhandup treatment system; downstream ward allocation is not stated.
Evidence locator: PDF pages 32-33 and page 36 note, Table 9.1 row 3
Limitation: The publication does not quantify a current source share or establish delivery to a particular household.

Source: Brihanmumbai Municipal Corporation · Environment Status Report 2024-25. Open official source

Lower Vaitarna (Modak Sagar) · Bhandup Complex treatment system

Operating in the reviewed official evidence · 2024-25

Reservoir Lake

BMC's narrative names Modak Sagar and its source table names Lower Vaitarna; the treatment note identifies Modaksagar in the Bhandup raw-water mix.

Authority: Brihanmumbai Municipal Corporation, Hydraulic Engineer Department
Geographic scope: BMC water-supply and Bhandup treatment system; downstream ward allocation is not stated.
Evidence locator: PDF pages 32-33 and page 36 note, Table 9.1 row 4
Limitation: The source naming is preserved as published; JalWater does not reconcile or rename the official labels beyond showing both together.

Source: Brihanmumbai Municipal Corporation · Environment Status Report 2024-25. Open official source

Upper Vaitarna · Bhandup Complex treatment system

Operating in the reviewed official evidence · 2024-25

Reservoir Lake

BMC names Upper Vaitarna among the seven resources and in the Bhandup Complex raw-water mix.

Authority: Brihanmumbai Municipal Corporation, Hydraulic Engineer Department
Geographic scope: BMC water-supply and Bhandup treatment system; downstream ward allocation is not stated.
Evidence locator: PDF pages 32-33 and page 36 note, Table 9.1 row 5
Limitation: The relationship does not establish present storage, source share or household delivery.

Source: Brihanmumbai Municipal Corporation · Environment Status Report 2024-25. Open official source

Bhatsa · Panjrapur treatment system

Operating in the reviewed official evidence · 2024-25

Reservoir Lake

BMC names Bhatsa among the seven impounded raw-water resources supplying Mumbai and lists it as a present source.

Authority: Brihanmumbai Municipal Corporation, Hydraulic Engineer Department
Geographic scope: BMC water-supply and Panjrapur treatment system; downstream ward allocation is not stated.
Evidence locator: PDF pages 32-33 and Table 9.1 row 6
Limitation: The publication does not establish current storage, a city-wide percentage or household availability.

Source: Brihanmumbai Municipal Corporation · Environment Status Report 2024-25. Open official source

Middle Vaitarna · Bhandup Complex treatment system

Operating in the reviewed official evidence · 2024-25

Reservoir Lake

BMC names Middle Vaitarna among the seven resources and in the Bhandup Complex raw-water mix.

Authority: Brihanmumbai Municipal Corporation, Hydraulic Engineer Department
Geographic scope: BMC water-supply and Bhandup treatment system; downstream ward allocation is not stated.
Evidence locator: PDF pages 32-33 and page 36 note, Table 9.1 row 7
Limitation: The relationship does not establish present storage, source share or household delivery.

Source: Brihanmumbai Municipal Corporation · Environment Status Report 2024-25. Open official source

Official proposals — not operating evidence

Gargai

Official proposal — not operating evidence · 2024-25

Reservoir Lake

BMC describes Gargai as a source being developed for future demand and places it in the planning/future-source part of the table.

Authority: Brihanmumbai Municipal Corporation, Hydraulic Engineer Department
Geographic scope: Future BMC source-development context only.
Evidence locator: PDF pages 32-33, future-demand paragraph and planning rows
Limitation: This proves proposal/planning status only. It must not be presented as an operating source.

Source: Brihanmumbai Municipal Corporation · Environment Status Report 2024-25. Open official source

Pinjal

Official proposal — not operating evidence · 2024-25

Reservoir Lake

BMC describes Pinjal in its future source-development context and places it in the planning/future-source part of the table.

Authority: Brihanmumbai Municipal Corporation, Hydraulic Engineer Department
Geographic scope: Future BMC source-development context only.
Evidence locator: PDF pages 32-33, future-demand paragraph and planning rows
Limitation: This proves proposal/planning status only. It must not be presented as an operating source.

Source: Brihanmumbai Municipal Corporation · Environment Status Report 2024-25. Open official source

Damanganga-Pinjal River Link Project · Damanganga-Pinjal River Link Project

Official proposal — not operating evidence · 2024-25

Inter Basin Transfer

BMC describes the Damanganga-Pinjal River Link Project as part of future source development.

Authority: Brihanmumbai Municipal Corporation, Hydraulic Engineer Department
Geographic scope: Future BMC source-development context only.
Evidence locator: PDF pages 32-33, future-demand paragraph and planning rows
Limitation: This proves proposal/planning status only. It must not be presented as an operating source.

Source: Brihanmumbai Municipal Corporation · Environment Status Report 2024-25. Open official source

Groundwater evidence

Before monsoon depth band

2–5 metres below the ground surface

2 to 5 mbgl · 2023-24

After monsoon depth band

within 2 metres of the ground surface

0 to 2 mbgl · 2023-24

CGWB official extraction category: Safe · 2024 assessment

This is a groundwater-resource category. It is not a drinking-water-quality or household-supply conclusion.

Published 2025 classification

Stress [1000-1700 m3]

Published 2050 classification

Stress [1000-1700 m3]

JalWater preserves the official periods and bands. It does not invent intermediate years or infer a trend.

Current condition and water quality

Current source condition

JalWater has not verified a stable official current-condition feed for this city.

Groundwater-quality samples

Reviewed station records are dated 2021–2023 and do not represent city-wide or municipal tap-water quality. Their numeric values are not published here.

Official sources and limitations

Official publications used

Brihanmumbai Municipal Corporation
Environment Status Report 2024-25 · 2024-25
PDF pages 32-33, Water Supply chapter and Table 9.1
Open official source

What is not verified

No stable official current-condition feed has been verified for this city.
No reviewed evidence establishes today's household supply, pressure, continuity, or tap-water safety.
No reviewed evidence establishes a source share for every neighbourhood or property.
No rainfall or reservoir-status feed is used to change the published classifications.
Groundwater-quality station values are excluded from the public release candidate.

Publication method

JalWater publishes independently written factual summaries with prominent attribution and links to official primary sources. It does not reproduce protected tables, images, long passages, raw datasets, or source documents.

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