H1 2026 Evaluation
Belarus Reservoir Transparency
F8Opaque — Ranked #115 out of 167 countries
weight 30%
weight 20%
weight 15%
weight 13%
weight 10%
weight 8%
weight 5%
Primary source evaluated
Belgidromet — Republican Centre for Hydrometeorology, Control of Radioactive Contamination and Environmental Monitoring
https://belgidromet.by/en/Dimension breakdown
Data Availability
20% of total score
No current reservoir storage volumes or fill percentages are published online for any Belarusian reservoir. Belgidromet's hydrological bulletins (published ~bi-weekly) cover river levels and general ice/temperature conditions but do not name or quantify storage for Vileika, Zaslauskae, Soligorsk, or any other specific reservoir. The National Environmental Monitoring System (NSMOS) monitors 21 reservoirs but publishes only annual water-quality ecological status assessments, not storage volumes. Belstat publishes total national freshwater-use statistics (Excel, 1990–2024) but not reservoir fill data. No dedicated reservoir-status portal exists.
Technical Accessibility
15% of total score
All publicly available hydrological information is published as narrative HTML text or PDF bulletins — no REST API, no structured downloads (CSV/JSON/XML), and no machine-readable data layer of any kind. Belgidromet does not advertise an open data portal. The EUWI+ catalogue for Belarus lists interactive monitoring-station maps with some password-protected layers, implying structured data exists internally but is not publicly accessible. The allrivers.info third-party site scrapes water-level readings for Vileika, Zaslauskae, and Soligorsk gauges but is not an official source and does not publish storage volumes.
Coverage
30% of total score
Denominator (RTI methodology): reservoirs with capacity >10 hm³. Belarus has approximately 8–12 reservoirs above this threshold from its 153-reservoir total inventory: Vileika (~260 Mm³, Minsk water supply), Zaslauskae (~107 Mm³, Minsk Sea), Lyubanskoe (~70 Mm³), Krasnaya Sloboda (~65 Mm³), Soligorsk (~50 Mm³, potash industry), Pogost (~45 Mm³), Lukomlskoe (~283 Mm³, power plant cooling), Osipovichi (~16 Mm³, Berezina HPP), Chigirinskoe (~21 Mm³, Drut HPP), Plavno (~12 Mm³), and a handful of others. Zero of these have publicly published storage volume or fill data. NSMOS water-quality monitoring of 21 reservoirs covers ecological status — not volumetric storage. Coverage rate is 0/~10 = 0%. Score reflects total absence of public reservoir-storage data for all qualifying facilities.
Historical Depth
13% of total score
Belgidromet's online hydrological situation bulletins can be traced back to at least 2021, providing several years of narrative river-condition summaries. However, these are prose reports, not machine-readable time series. No downloadable historical reservoir storage series exists in the public domain. Belstat publishes annual freshwater-use totals in Excel from 1990 to 2024, but this is aggregate abstraction data, not reservoir fill levels. The GRDC holds Belarusian river-discharge data for research use under restrictive terms, not open access. Effective machine-readable historical depth for reservoir storage is zero years.
Update Frequency
10% of total score
Belgidromet publishes hydrological situation overviews approximately twice per week during active seasons, and monthly basin-level summaries. This is a reasonable publication cadence for river conditions. However, since reservoir storage volumes are not published at all, the effective update frequency for reservoir-specific quantitative data is zero — no storage metric is refreshed at any interval. The score reflects the cadence of the closest available proxy (river-level narrative bulletins) heavily discounted for the complete absence of reservoir storage data.
Methodological Transparency
8% of total score
Belarus is a WMO member and Belgidromet operates within internationally agreed hydrometeorological standards, which provides a baseline of implied methodological adherence. Belarus participates in the UNECE Water Convention and contributed river basin management plans (Pripyat, Dnieper) as part of the EUWI+ process, which contain some monitoring methodology description. However, no publicly accessible document specifically explains how reservoir water levels or storage volumes are measured, calibrated, or quality-controlled by Belgidromet or any other Belarusian authority. The NSMOS legal framework is referenced in legislation but not operationally explained for public audiences.
Language and Usability
5% of total score
Belgidromet maintains a full English-language version of its website (belgidromet.by/en/) including the hydrological situation bulletins, which is a meaningful transparency asset. The January 2026 basin bulletin and the June 2025 river overview are both available in English. However, these English bulletins contain no reservoir storage data — they cover only river levels and general basin conditions in narrative form. The Ministry of Natural Resources (minpriroda.gov.by) also has an English section. The open-data civic portal (opendata.by) operates only in Russian. The partial English availability of narrative content earns a modest score, but the absence of any quantitative reservoir data in any language limits the practical benefit.
Evaluator notes
Belarus presents one of the lowest reservoir data transparency profiles in Europe. The country's principal hydrometeorological authority, Belgidromet, publishes regular narrative bulletins covering river conditions across the major basins (Neman, Dnieper, Pripyat, Western Dvina, and Vilia), and these are available in English — a genuine positive. However, none of these publications disclose storage volumes, fill percentages, or operational status for any specific reservoir. The Vileika reservoir (260 Mm³, serving roughly one-third of Minsk's drinking water supply via the Vileika-Minsk canal), the Zaslauskae reservoir (93 Mm³), and the Soligorsk reservoirs (serving the potassium mining industrial complex) are all absent from any publicly accessible quantitative dataset. The NSMOS monitors 21 reservoirs annually for ecological water-quality classification — a legitimate scientific program — but the outputs are internal or published only in aggregate form without site-specific storage readings. The structural reasons for this opacity are multiple. Belarus operates under a highly centralised governance model where hydrometeorology data is treated as a state resource rather than a public good. The World Bank's 2020 roadmap for strengthening Belarus's hydromet services identified significant modernisation needs, and the EUWI+ programme (EU-funded, 2016–2021) made modest progress on basin management planning for the Pripyat and Dnieper but did not produce open reservoir monitoring portals. The civic open-data initiative opendata.by contains no water datasets. No REST API, structured download, or machine-readable format for reservoir data has been identified through this research. Belarus is a party to the UNECE Water Convention and participates in transboundary basin monitoring on the Bug River (with Poland and Ukraine) and bilateral river-data exchange agreements. However, these frameworks cover river discharge and water quality rather than reservoir storage. Belarus is not a member of ICPDR (Danube Commission) and there is no regional body with competence over its internal reservoir system. Until Belarus institutionalises open publication of reservoir storage data — ideally with daily or weekly granularity and a machine-readable format — it will remain in the lowest transparency tier for this dimension of water governance.
Evaluated by Jaime Delgado · 2026-09-15 · Methodology v1.3.0