Dataset pairs for review

Land Use Policy Planning Department

Match checked · Review pending

Screen historical land-cover change in Knuckles.

1. Knuckles land cover 2015

   Copernicus Global Land Service. Collection 3 v3.0.1, exact source raster and fixed map window

2. Knuckles land cover 2018

   Copernicus Global Land Service. Collection 3 v3.0.1, exact source raster and fixed map window

How they match Same 100 m Copernicus grid and fixed Knuckles window. Compare 2015 and 2018 only.

Still needed Obtain the agreed project and division boundaries, recent comparable imagery and field checks. Confirm how tree crops and plantations are classified.

Open institution review form · Open draft datasets

Natural Resources Management Centre

Match checked · Review pending

Screen soil groups within agro-ecological zones.

1. Agro Ecological Zones

   Sri Lanka NSDI. Saved public snapshot, 48 records

2. Soil Groups

   Sri Lanka NSDI. Saved public snapshot, 31 records

How they match Intersect the published layers as a many-to-many spatial comparison.

Still needed Obtain original survey geometry and layer dates for area calculations. Confirm which soil classes require field checks.

Open institution review form · Open draft datasets

Department of Agriculture

Match checked · Review pending

Compare area harvested and published yield by district and season.

1. Paddy harvested area by district

   Department of Census and Statistics. Table 5.4, district totals

2. Paddy yield by district and season

   Department of Census and Statistics. Table 5.20

How they match Match published district and exact season. Use the district total area and the independently published yield.

Source check DCS identifies both Jaffna Yala entries as no cultivation. The average yield is not applicable.

Still needed Keep Jaffna Yala blanks with the no-cultivation footnote. Gross harvested hectares and net-hectare yield have different bases.

Open institution review form · Open draft datasets

Department of Agrarian Development

Match checked · Review pending

Group Agrarian Service Centre records under the correct district commissioner area.

1. Asc divisions

   Department of Agriculture. Saved public snapshot, 545 records

2. District commissioner divisions

   Department of Agriculture. Saved public snapshot, 25 records

How they match Match CropIX district commissioner ID to the ID referenced in each centre record. Many centres may share one district commissioner.

Still needed Confirm active centres, jurisdiction boundaries and the date of the registers with the Department of Agrarian Development.

Open institution review form · Open draft datasets

Irrigation Department

Match checked · Review pending

Compare reservoir storage on the first reporting day of the two published seasonal series.

1. Major reservoirs · Maha seasonal history

   Irrigation Department. Saved public snapshot, 13,468 records

2. Major reservoirs · Yala seasonal history

   Irrigation Department. Saved public snapshot, 13,542 records

How they match Match reservoirs using the recorded name and coordinates. Compare Yala 2025 with Maha 2025/26, keeping the seasons separate.

1 matched keys have a missing value.

Source check The Irrigation Department’s Yala series leaves the 1 April 2025 Alikota Ara effective storage cell blank. Request the original acre-foot reading.

Still needed Obtain verified reservoir IDs and a longer clean daily series for operational releases. Withhold duplicate conflicting readings.

Open institution review form · Open draft datasets

Mahaweli Authority of Sri Lanka

Match checked · Review pending

Group project blocks under the correct Mahaweli system.

1. Mahaweli blocks

   Department of Agriculture. Saved public snapshot, 44 records

2. Mahaweli systems

   Department of Agriculture. Saved public snapshot, 10 records

How they match Match the system ID in the block record to the published system register. Several blocks can share a system.

Still needed Confirm current coverage, units, and whether zero land areas in the register indicate zero or missing entries.

Open institution review form · Open draft datasets

Forest Department

Match checked · Review pending

Check changes and revisions in reported forest classes.

1. Forest area by type, 2018–2023

   DCS / Department of Forests. Saved public snapshot, 108 records

2. Forest area by type, 2019–2024

   DCS / Department of Forests. 2025 Statistical Abstract, Table 5.29, selected classes

How they match Compare the same forest class in the overlapping years of DCS Table 5.29. Retain the edition for each figure.

Unmatched keys in the checked scope: 0 in the first source and 6 in the second.

Source check Six forest classes have 2024 figures only in the newer edition. The earlier edition ends in 2023, so these six keys are outside the overlap.

Still needed Confirm changes in forest classifications and the latest verified Knuckles forest boundaries. National figures do not identify local clearing.

Open institution review form · Open draft datasets

Department of Meteorology

Match checked · Review pending

Compare recent rainfall with air temperature at the same reporting station.

1. Rainfall since 08:30 by station

   Department of Meteorology, Sri Lanka. Published station observation time

2. Air temperature by station

   Department of Meteorology, Sri Lanka. Published station observation time

How they match Match official station ID and observation timestamp. Rainfall is an accumulation, temperature is instantaneous.

1 matched keys have a missing value.

Source check Katunayake rainfall since 08:30 is published as a trace at the 17:30 observation. A numeric amount is unavailable.

Still needed Confirm the reporting time zone, quality flags and complete official daily series for trend or warning use.

Open institution review form · Open draft datasets

Department of Export Agriculture

Match checked · Review pending

Compare export crop extent and production to identify districts for verification.

1. Export-crop extent by district, 2025

   Department of Export Agriculture. Saved public snapshot, 416 records

2. Export-crop production by district, 2025

   Department of Export Agriculture. Saved public snapshot, 390 records

How they match Match district, crop and 2025. Keep hectares and metric tonnes separate. Compare the 14 individual crops. District subtotals and grand totals are outside this comparison.

100 matched keys have a missing value.

Source check Matched Puttalam and Vavuniya using the production table’s printed district names. The comparison uses individual crops. Published blanks still need confirmation from the department.

Still needed Confirm extent refers to a comparable productive area before calculating yield. Unmatched crop categories and missing cells need confirmation.

Open institution review form · Open draft datasets

Provincial Departments of Agriculture

Match checked · Review pending

Compare March and April progress during the same Yala cropping season.

1. Paddy, OFC & VEG — 2026 Yala - March

   Ministry of Agriculture, Southern Province. Saved public snapshot, 351 records

2. Paddy, OFC & VEG — 2026 Yala - April

   Ministry of Agriculture, Southern Province. Saved public snapshot, 351 records

How they match Match crop, Southern Province district and cultivation progress in hectares. Keep March and April as separate snapshots. Both reports use the same row for Wing bean. The April label is blank.

79 matched keys have a missing value. Duplicate rows withheld: 6 in the first source and 6 in the second.

Source check Matched the April row with a blank label to Wing bean using the March workbook and the same position and adjacent crops. Blank progress cells need the province’s confirmation.

Still needed Obtain the equivalent Central Province and Knuckles returns. Confirm whether progress is cumulative. Ask the province to confirm the April Wing bean label and mark missing progress cells explicitly.

Open institution review form · Open draft datasets

Project Management Unit

Match checked · Review pending

Reconcile the published GCF grant with the public transfer timeline for FP124.

1. FP124 financing

   Green Climate Fund. Saved public snapshot, 4 records

2. FP124 GCF disbursement timeline

   Green Climate Fund. FP124 project timeline, first and second listed GCF transfers

How they match Match FP124 and the GCF grant funding stream. Compare the grant commitment with listed transfer events in USD.

Still needed Obtain the PMU ledger, expenditure, co-financing actually received and the reconciliation to figures reported to Parliament. FP124 Annual Performance Report 2025.

Open institution review form · Open draft datasets

CIFOR-ICRAF and Research Partners

Match checked · Review pending

Identify which gauge produced rainfall records used in landscape research.

1. Rainfall · matched station observations

   Sri Lanka NSDI · Department of Meteorology. Saved public snapshot, 3 records

2. Rainguage Stations

   Sri Lanka NSDI. Saved public snapshot, 1,085 records

How they match Match rain-gauge serial number and retain the original observation dates.

Still needed Obtain longer validated daily records and the gauge history before relating rainfall to changes in the landscape.

Open institution review form · Open draft datasets

Sub-Watershed Integrated Delivery Teams

Public baseline · Review pending

Assign watersheds to basin planning areas before reviewing delivery.

1. Water Shed

   Sri Lanka NSDI. Saved public snapshot, 168 records

2. Basin

   Sri Lanka NSDI. Saved public snapshot, 103 records

How they match Intersect the official watershed and river basin display layers in the Knuckles review window. Use positive-area overlaps only.

Still needed Obtain the official FP124 sub-watershed codes, activity locations, progress dates and watershed crosswalk. The public 2025 APR reports project-wide progress. FP124 Annual Performance Report 2025.

Open institution review form · Open draft datasets

Survey Department

Match checked · Review pending

Check that a census population record is assigned to the right mapped GN area.

1. Grama Niladhari boundaries · Census 2024

   Department of Census and Statistics. Saved public snapshot, 14,008 records

2. Population Information by Grama Niladhari Division, CPH-2024

   Department of Census and Statistics. Saved public snapshot, 14,008 records

How they match Use the DCS Census 2024 GN identifier built from district, DS and GN codes.

Still needed Confirm authoritative survey edition, scale and permission for planning use. The census layer is not cadastral survey geometry.

Open institution review form · Open draft datasets

National Spatial Data Infrastructure

Match checked · Review pending

Check that an official household table can be linked to the census map.

1. Grama Niladhari boundaries · Census 2024

   Department of Census and Statistics. Saved public snapshot, 14,008 records

2. Household Information by Grama Niladhari Division, CPH-2024

   Department of Census and Statistics. Saved public snapshot, 14,008 records

How they match Use DCS Census 2024 GN identifier. Keep household counts separate from population and occupied housing units.

Still needed Confirm geometry edition and republication terms with DCS and NSDI.

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Disaster Management Centre

Public baseline · Review pending

Group the published shelter inventory by district for a coverage check.

1. Shelters

   Sri Lanka NSDI. NSDI shelter geometry. Seven points in the fixed Knuckles review window.

2. District Boundary

   Sri Lanka NSDI. Saved public snapshot, 25 records

How they match Use the seven published shelter points returned in the 30 × 30 km Knuckles review window and the NSDI district boundaries.

Still needed Confirm current shelter capacity, access and coordinates. The available landslide hazard layer returned no polygon at those seven sites. That is a coverage gap.

Open institution review form · Open draft datasets

National Building Research Organisation

Public baseline · Review pending

Check which district covers mapped landslide features in a small Knuckles sample.

1. Landslide

   Sri Lanka NSDI. NSDI landslide layer, small review sample around Knuckles. The layer does not include event dates.

2. District Boundary

   Sri Lanka NSDI. Saved public snapshot, 25 records

How they match Intersect the saved landslide polygons and district boundaries. Count feature-district pairs with positive-area overlap.

Still needed Obtain an authoritative hazard layer covering the same sites and a dated landslide event inventory. The source layer does not establish event dates or future hazard.

Open institution review form · Open draft datasets

Central Environmental Authority

Match checked · Review pending

Screen forest and watershed intersections around Knuckles for follow-up.

1. Forest Boundary

   Sri Lanka NSDI. Saved NSDI Knuckles forest feature extract. Screened inside a 30 × 30 km review window.

2. Water Shed

   Sri Lanka NSDI. Saved public snapshot, 168 records

How they match Overlay the saved official Knuckles forest subset and watershed display geometry.

Still needed Obtain current, unsimplified geometry and designated boundaries before measuring area or deciding permit conditions.

Open institution review form · Open draft datasets

Department of Wildlife Conservation

Match checked · Review pending

Place wildlife reserve area and forest area in the same national yearly report.

1. Wildlife reserve area by category, 2018–2024

   Department of Census and Statistics. Saved public snapshot, 49 records

2. Forest area by type, 2018–2023

   DCS / Department of Forests. Saved public snapshot, 108 records Added the published 2024 closed canopy natural forest area from DCS Table 5.29.

How they match Compare the 2018–2024 national totals by year. The latest forest figure comes from DCS Table 5.29. The two land areas can overlap.

Source check Added the published 2024 closed canopy natural forest area from DCS Table 5.29. 2024 forest area in DCS Table 5.29.

Still needed Obtain dated protected-area polygons, legal categories and custodial records for reserve-level analysis.

Open institution review form · Open draft datasets

Department of Census and Statistics

Match checked · Review pending

Compare population and households for the same Census 2024 GN division.

1. Population Information by Grama Niladhari Division, CPH-2024

   Department of Census and Statistics. Saved public snapshot, 14,008 records

2. Household Information by Grama Niladhari Division, CPH-2024

   Department of Census and Statistics. Saved public snapshot, 14,008 records

How they match Match official district, DS and GN codes for the same census edition.

Still needed Confirm comparison purpose, disclosure rules and later boundary changes. Keep persons and households separate.

Open institution review form · Open draft datasets

Water Resources Board

Source overlap · Review pending

Check how groundwater prospect and aquifer layers correspond.

1. Ground Water Prospect

   Sri Lanka NSDI. Saved public snapshot, 514 records

2. Ground Water

   Sri Lanka NSDI. Saved public snapshot, 514 records

How they match Compare source geometry and aquifer labels. Treat duplicated geometry as overlapping source evidence.

Still needed Confirm layer lineage and obtain validated well yields and water quality results. Geometry agreement cannot validate groundwater performance.

Open institution review form · Open draft datasets

National Water Supply and Drainage Board

Match checked · Review pending

Compare household drinking-water sources and toilet facilities by district.

1. Households by main source of drinking water at district level, 2024

   Department of Census and Statistics. Saved public snapshot, 52 records

2. Households using toilet facilities at district level 2024

   Department of Census and Statistics. Saved public snapshot, 52 records

How they match Match the 25 district count rows of Census 2024. Exclude national and percentage rows.

Still needed Obtain scheme connection, water quality and service reliability records for a water-service decision.

Open institution review form · Open draft datasets

Geological Survey and Mines Bureau

Match checked · Review pending

Identify soil groups around recorded erosion sites for field investigation.

1. Soil Groups

   Sri Lanka NSDI. Saved public snapshot, 31 records

2. Soil Erosion

   Sri Lanka NSDI. Saved public snapshot, 25 records

How they match Locate recorded erosion points within mapped soil groups. Treat boundary cases as unresolved.

Still needed Confirm coordinates, observation dates and the erosion rate units and measurement basis. Add site geology and field records.

Open institution review form · Open draft datasets

Land Commissioner General's Department

Public baseline · Review pending

Check which district covers the mapped land-use polygons in a small Knuckles sample.

1. Landuse LUPPD 10K

   Sri Lanka NSDI. LUPPD 10K land use accessed from NSDI, small review sample around Knuckles.

2. District Boundary

   Sri Lanka NSDI. Saved public snapshot, 25 records

How they match Intersect the LUPPD 10K land-use polygons with NSDI districts. Use positive-area overlaps.

Still needed No published cadastral features were returned for the full Knuckles review window. Obtain cadastral polygons, parcel identifiers and tenure records for a parcel decision.

Open institution review form · Open draft datasets

HARTI

Match checked · Review pending

Check changes in wholesale market prices across two reports.

1. Wholesale food prices — 2026-10-23

   HARTI. Saved public snapshot, 24 records

2. Wholesale food prices — 2026-10-28

   HARTI. Saved public snapshot, 24 records

How they match Match commodity grade, market and unit on the two HARTI bulletin dates.

Still needed Obtain consecutive observations and quantities for seasonal or volume-weighted analysis.

Open institution review form · Open draft datasets

Export Development Board

Match checked · Review pending

Report export earnings and published export share for the same sector.

1. Export earnings by sector, 2015–2026

   Export Development Board. Saved public snapshot, 285 records

2. Export contribution by sector, 2015–2026

   Export Development Board. Saved public snapshot, 263 records

How they match Match sector label, year and reporting basis. Pair full years with full years and partial years with the same period.

Unmatched keys in the checked scope: 11 in the first source and 0 in the second.

Source check Matched the edible fish labels and identified duplicate Ornamental Fish earnings already published as Aquarium Fish. The combined fisheries share is missing for eleven periods. EDB export performance report.

Still needed Request the published combined fisheries share and its denominator for the same periods. Export totals and their components can overlap.

Open institution review form · Open draft datasets

National Enterprise Development Authority

Match checked · Review pending

Compare the scale of industries that can support enterprise programmes.

1. Industrial establishments by sector

   Department of Census and Statistics. Annual Survey of Industries 2022, Table 5.1, reference year 2021

2. Persons engaged in industry by sector

   Department of Census and Statistics. Annual Survey of Industries 2022, Table 5.1, reference year 2021

How they match Match published industry sector and 2021 reference year in the 2022 DCS survey.

Still needed Obtain current district-level SME and programme records. The survey scope excludes many microenterprises.

Open institution review form · Open draft datasets

Industrial Development Board

Match checked · Review pending

Compare industrial employment and output across the four published industry sectors.

1. Persons engaged in industry by sector

   Department of Census and Statistics. Annual Survey of Industries 2022, Table 5.1, reference year 2021

2. Value of industrial output by sector

   Department of Census and Statistics. Annual Survey of Industries 2022, Table 5.1, reference year 2021

How they match Match published industry sector and 2021 reference year in the 2022 DCS survey.

Still needed Obtain newer local establishment data and the industry division crosswalk. Use published aggregates within their defined scope.

Open institution review form · Open draft datasets

District Secretariats

Match checked · Review pending

Compare district population and household drinking-water coverage.

1. Population by sex and age according to districts, 2024

   Department of Census and Statistics. Saved public snapshot, 52 records

2. Households by main source of drinking water at district level, 2024

   Department of Census and Statistics. Saved public snapshot, 52 records

How they match Match Census 2024 district counts by the official district name. Keep persons and households as separate measures.

Still needed Add current service records and the approved geography for outreach or emergency use.

Open institution review form · Open draft datasets

Divisional Secretariats

Match checked · Review pending

Compare drinking-water and sanitation needs by Divisional Secretariat division.

1. Households by main source of drinking water at district level and Divisional Secretariat Divisions, 2024

   Department of Census and Statistics. Saved public snapshot, 366 records

2. Households using toilet facilities at district level and divisional Secretariat Divisions, 2024

   Department of Census and Statistics. Saved public snapshot, 366 records

How they match Match DS names within the same parent district in Census 2024. Exclude parent and national totals.

Still needed Confirm a stable DS code crosswalk and add later service coverage observations.

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Grama Niladhari Officers

Match checked · Review pending

Compare population with occupied housing for the same GN division.

1. Population Information by Grama Niladhari Division, CPH-2024

   Department of Census and Statistics. Saved public snapshot, 14,008 records

2. Occupied Housing Units by Grama Niladhari Division

   Department of Census and Statistics. Saved public snapshot, 14,008 records

How they match Match the DCS Census 2024 GN identifier. Keep people and housing units separate.

Still needed Add household and current service records if planning interventions. Confirm disclosure rules before wider use.

Open institution review form · Open draft datasets

Farmer Organizations

Match checked · Review pending

Compare district paddy activity and yield to plan farmer support.

1. Paddy harvested area by district

   Department of Census and Statistics. Table 5.4, district totals

2. Paddy yield by district and season

   Department of Census and Statistics. Table 5.20

How they match Match the official district and season. Use district figures as benchmarks.

Source check DCS identifies both Jaffna Yala entries as no cultivation. The average yield is not applicable.

Still needed Obtain farmer organization plot and crop logs with scheme and season identifiers.

Open institution review form · Open draft datasets

Farmers

Match checked · Review pending

Compare the same wholesale commodity in the same market on two days.

1. Wholesale food prices — 2026-10-27

   HARTI. Saved public snapshot, 24 records

2. Wholesale food prices — 2026-10-28

   HARTI. Saved public snapshot, 24 records

How they match Match commodity grade, market and price unit. Keep bulletin dates separate.

Still needed Add farm-gate prices, transport and grading costs before assessing the farmer's net price.

Open institution review form · Open draft datasets

Plantation Companies

Public baseline · Review pending

Compare Sri Lankan tea production and tea export earnings in the same calendar year.

1. National tea production, 2016–2025

   Department of Census and Statistics. Table 5.19, Tea row, page 225 Added the Sri Lanka Tea Board’s revised 2025 total of 264,615.760 metric tonnes. The earlier values use the DCS series.

2. Export earnings by sector, 2015–2026

   Export Development Board. Saved public snapshot, 285 records

How they match Match the national DCS tea production series with EDB Ceylon Tea full-year export earnings. Preserve metric tonnes and USD separately.

Source check Added the Sri Lanka Tea Board’s revised 2025 total of 264,615.760 metric tonnes. The earlier values use the DCS series. Sri Lanka Tea Board revised 2025 production.

Still needed Obtain estate-level production, sales, prices and cost per kilogram. National figures do not show margins or the volume exported by individual estates.

Open institution review form · Open draft datasets

Plantation Workers/Community Groups

Match checked · Review pending

Identify GN divisions with estate-rural residents and household service needs.

1. GN Level Population by Sector, CPH 2024

   Department of Census and Statistics. Saved public snapshot, 14,369 records Added zero estate-rural residents for the five GN areas where DCS reports zero total population.

2. Household Information by Grama Niladhari Division, CPH-2024

   Department of Census and Statistics. Saved public snapshot, 14,008 records

How they match Use Census 2024 district, DS and GN codes. Use estate-rural population only as a planning filter.

Source check Added zero estate-rural residents for the five GN areas where DCS reports zero total population. CPH 2024 GN population workbook.

Still needed Obtain estate-specific household service and workforce records. GN household totals cover all sectors.

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Buyers and Traders

Match checked · Review pending

Compare matching wholesale grades before sourcing.

1. Wholesale food prices — 2026-10-23

   HARTI. Saved public snapshot, 24 records

2. Wholesale food prices — 2026-10-26

   HARTI. Saved public snapshot, 24 records

How they match Match commodity grade, market and unit across the two bulletin dates.

Still needed Obtain actual transaction volumes and supplier quotations before buying decisions.

Open institution review form · Open draft datasets

Processors and Exporters

Match checked · Review pending

Compare sector export earnings with the published major destinations.

1. Export earnings by sector, 2015–2026

   Export Development Board. Saved public snapshot, 285 records

2. Major export markets, 2025

   Export Development Board. Saved public snapshot, 250 records

How they match Use full-year 2025 sector totals and major destinations from the same EDB reporting basis.

Source check Added published full-year earnings of USD 50.21 million for fresh fruits and USD 36.06 million for vegetables. The same sector total repeats across destinations. EDB fruits and vegetables earnings and markets.

Still needed The source publishes selected destinations. Obtain the complete destination list and company order data for business planning.

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Banks and Finance Institutions

Public baseline · Review pending

Compare national bank branch and ATM availability by year.

1. Bank branch counts in Sri Lanka

   Central Bank of Sri Lanka. Annual Economic Review 2024, Table 20, financial infrastructure

2. ATM counts in Sri Lanka

   Central Bank of Sri Lanka. Annual Economic Review 2024, Table 20, financial infrastructure

How they match Match year and the national scope in Central Bank Table 20. Branch counts exclude student savings units.

Still needed Obtain branch-level locations, current status and lending data for the Knuckles area.

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PES Intermediaries

Match checked · Review pending

Screen candidate watershed and forest areas for a payment for ecosystem services proposal.

1. Forest Boundary

   Sri Lanka NSDI. Saved NSDI Knuckles forest feature extract. Screened inside a 30 × 30 km review window.

2. Water Shed

   Sri Lanka NSDI. Saved public snapshot, 168 records

How they match Overlay official forest and watershed polygons to identify where further verification is needed.

Still needed Obtain the verified intervention boundary, baseline, eligible parcels, agreements and payment evidence. Maps alone cannot support a payment.

Open institution review form · Open draft datasets

Universities and Researchers

Match checked · Review pending

Check source identity and coverage for a rainfall study.

1. Rainfall · matched station observations

   Sri Lanka NSDI · Department of Meteorology. Saved public snapshot, 3 records

2. Rainguage Stations

   Sri Lanka NSDI. Saved public snapshot, 1,085 records

How they match Match the exact published station serial and preserve observation date and source references.

Still needed Obtain continuous quality-controlled series and station move, instrument and missing-value history.

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Community-Based Organizations and NGOs

Match checked · Review pending

Compare district household water and sanitation needs for community planning.

1. Households by main source of drinking water at district level, 2024

   Department of Census and Statistics. Saved public snapshot, 52 records

2. Households using toilet facilities at district level 2024

   Department of Census and Statistics. Saved public snapshot, 52 records

How they match Match Census 2024 district count rows. Keep drinking-water source and toilet access as separate indicators.

Still needed Obtain matched GN or community service records and agreed beneficiary definitions before planning a local intervention.

Open institution review form · Open draft datasets