Official source register

JalWater uses only publicly available data from recognised government and institutional sources. Third-party blogs and unofficial datasets are excluded.

Recognised source families

CGWB

Central Ground Water Board

Groundwater assessment, aquifer mapping, block classifications

Groundwater resource assessment, extraction category, and assessment-unit context

Source website

NITI ICED

NITI Aayog ICED

Government dashboard datasets for groundwater-depth bands and water availability categories

Groundwater-depth ranges and 2025/2050 water-availability classifications with caveats

Source website

CWC

Central Water Commission

Reservoir storage and river basin publications

Reservoir dependency and storage context

Source website

IMD

India Meteorological Department

Rainfall observations, deviations, and climate summaries

Rainfall status and rainfall deviation context

Source website

CPCB

Central Pollution Control Board

Water quality monitoring and pollution control publications

Water quality indicators and official monitoring context

Source website

Jal Shakti

Ministry of Jal Shakti

National water policy, programmes, dashboards, and reports

Official publications, programme context, and notifications

Source website

CGWB source-review status

CGWB now has a narrow Phase 12 public rendering scope for manually verified rows from the supplied 2024 compilation PDF. The older review workflow remains in place for future extracts.

Institution: Central Ground Water Board
Source name: Central Ground Water Board official publications
Publication date: Data not yet available
Retrieved: 2026-06-25
Review note: Specific CGWB publication extracts have not been loaded into this repository. No numeric groundwater values may be displayed until a reviewed source document is added.

Phase 12 approved source files

These files are the only approved public data inputs for this rescue release. Checksums are generated locally and verified by npm run data:validate.

National Compilation on Dynamic Ground Water Resources of India, 2024

Institution: Central Ground Water Board
Local file: data/source-documents/cgwb/GW-2.pdf
SHA-256: cee459fe1225ab0d529cb69d89476882e8c3a58bdeb6fb9dfc3c7b39b11e57ac
Public rendering scope: Approved for Phase 12 public rendering where generated record validation passes.
Caveat: Official CGWB groundwater-resource assessment. Categories refer to groundwater extraction assessment units, not the entire municipal water system.

District-wise post-monsoon water-level distribution, 2020-2024

Institution: Central Ground Water Board
Local file: data/source-documents/cgwb/GW-1.pdf
SHA-256: a3ace91a09bac1e29ddc157718f77ac78b3695995d3eab8655612544dbe7e84a
Public rendering scope: Approved for future Punjab, Haryana and Rajasthan enrichment after row validation; not rendered in the initial Bengaluru/Mumbai release.
Caveat: Official CGWB observation-well distribution data. It is a distribution of wells across depth bands, not an average groundwater depth.

Pre Monsoon Water Levels and Post Monsoon Water Levels

Institution: NITI Aayog
Local file: data/source-documents/niti-iced/pre-post-monsoon-water-levels.xlsx
SHA-256: 96c50d6393c551e69574be1d75bd316c085c5906529c0cfa7e5c24bee5117772
Public rendering scope: Approved for Phase 12 public rendering where generated record validation passes.
Caveat: Government dashboard dataset; some values may be compiled, derived or based on assumptions. See source note. Values are ranges, not exact groundwater measurements.

Per Capita Water Availability 2025 and 2050

Institution: NITI Aayog
Local file: data/source-documents/niti-iced/per-capita-water-availability-2025-2050.xlsx
SHA-256: 78dd6fd51da85ff056c177855dc6690be0b25ac54044484518d74e39ffa1ca1c
Public rendering scope: Approved for Phase 12 public rendering where generated record validation passes.
Caveat: Government dashboard dataset; some values may be compiled, derived or based on assumptions. See source note. Values are classifications, not exact city-level quantities.

Generated record counts

Locations

CGWB resource records

Depth-band records

Availability records

Reviewed CGWB publication metadata

This section is publication metadata only. It identifies a reviewed official source document shell without presenting metadata-only records as water data.

CGWB official groundwater publication metadata shell

Institution: Central Ground Water Board
Publication date: Data not yet available
Retrieval date: 2026-06-25
Source URL: https://cgwb.gov.in/
Review status: reviewed
Extraction status: metadata only
Usage/licensing note: Metadata shell only. Review the specific official CGWB publication, citation, and usage terms before approving any extracted value.

Reviewed Extracts

The historic reviewed-extract workflow remains available for future source additions. Phase 12 public records are generated from the four approved supplied source files, not from validation reports or signoff manifests.

No approved extracts yet for the manual reviewed-extract workflow

Add future manual CGWB extracts under data/reviewed-sources/cgwb/ using the template. The upload/review workflow pending state still applies to manual extracts. Pending and rejected records must not render as public water values.

Official Publication Review Framework

JalWater now has a source-family-neutral review workflow for future official publications. The framework does not add public groundwater values.

Review dashboards, checklists, validation reports, reviewer guidance, contributor documentation, and future source-family compatibility are documented in the review workflow.

Open review workflow

Review Validation

Reviewed extract files can be checked locally with npm run validate:extracts. The validator produces pass/fail reports and does not render values publicly.

Validation scans data/reviewed-sources/ across source-family folders, ignores example templates, and reports exact reasons by file and record.

npm run validate:extracts

Review Reports

Optional saved validation reports are local audit artifacts only. They do not approve public rendering or change public source data.

Generate JSON or Markdown reports under data/validation-reports/ for reviewer signoff:

npm run validate:extracts:reportnpm run validate:extracts:report:md

Signoff Governance

Signoff manifests connect validation reports, reviewed extracts, reviewers, approvers, and approval scope. They remain local audit files only.

Validate signoffs with npm run validate:signoffs. Approved-for-record signoff status does not make values public; public rendering requires a later separate phase.

Reviewed extract validation ≠ reviewer signoff ≠ public rendering approval.