Tajikistan Reservoir Transparency

No government agency publishes reservoir storage or water-level data through any public online channel. Barki Tojik (operator of Nurek, Nurek-2, Sangtuda-1 and Sangtuda-2) releases occasional single-figure snapshots exclusively through press statements during journalist tours — confirmed for April 2024 and November 2025. The Ministry of Energy and Water Resources website (egov.tj) contains no operational reservoir data. The Agency for Hydrometeorology (meteo.tj) lists river-flow forecasting as a paid service and publishes nothing freely. The SIC ICWC yearbook includes one aggregate Nurek annual-inflow figure for 2022, embedded in narrative text. CAWater-Info (cawater-info.net) provides static design-spec pages for Nurek and Kayrakkum (total/active capacity, commissioning year) with no dynamic data. Kayrakkum (Bakhri Tojik) and the under-construction Rogun reservoir have no public level data at all.

No API exists anywhere in the national ecosystem. The Barki Tojik website (barki-tojik.tj) was unreachable at time of evaluation (connection refused). meteo.tj provides an English-language website but all hydrological data services require direct contact with the agency and appear to be commercial products. CAWater-Info serves static HTML pages only. The SIC ICWC yearbook data is embedded in HTML narrative and PNG images — not machine-readable. No CSV, JSON, XML or structured download of any kind is available from any national source. Even the World Bank Nurek Rehabilitation project references operational data held internally by Barki Tojik, not in any public-facing system.

v1.3.0 capacity-weighted: coverage = round(100 × covered_capacity_hm³ / total_national_capacity_hm³). Tajikistan's total reservoir capacity above 10 hm³ is approximately 29,000 Mm³ (revised up from the 15,300 Mm³ pre-Rogun baseline to reflect the partial Rogun fill capacity progressing through 2026), distributed across Nurek (~10,500 Mm³ active / Soviet design), Kayrakkum (~4,000 Mm³), Rogun (filling), Baypazin, Sangtuda-1/2, Kattasay, Muminabad, Selbur, Golovnoye, Daganasay and Farkhad. Barki Tojik publishes only sporadic Nurek snapshots through journalist tours and press statements (April 2024, November 2025) — no systematic or self-service access. Capacity-weighted covered storage ≈ 1,450 Mm³ on a generous accounting of partial Nurek visibility through press statements. Coverage = round(100 × 1,450 / 29,000) = 5. The capacity-weighted score remains very low because Barki Tojik treats reservoir data as operationally sensitive and Rogun publishes no level data.

No machine-readable historical time series is publicly available from any national source. The CAWater-Info SIC ICWC regional information system claims data since 1980 across 150+ parameters for the Aral Sea basin, but access to this database is restricted to registered institutional users, not the general public. The ICWC yearbook series (HTML) contains scattered annual aggregate figures for Nurek going back several years, but these are embedded in narrative paragraphs with no downloadable series. World Bank and ADB project documents cite historical inflow and generation statistics derived from Barki Tojik internal records — not a public archive. In effect, zero years of machine-readable historical reservoir data are accessible to the public.

There is no scheduled publication cycle for reservoir data. The only public updates are reactive: Barki Tojik issues a statement when the energy situation becomes newsworthy (critical levels in winter, filling in spring). In the period reviewed, identifiable public data points appeared in April 2024 (journalist tour) and November 2025 (energy crisis). meteo.tj forecasting bulletins on river inflows are issued monthly for the vegetation season but are not freely accessible and do not include reservoir storage volumes. The ICWC yearbook is published annually but with a lag of 12–18 months and covers reservoir data only in passing.

No government agency publishes a methodology document for reservoir measurement. Barki Tojik press statements quote water levels in meters above sea level (e.g. 857.64 m as of April 2024) without explaining the gauge reference, bathymetric conversion method, or how volume is derived from level. The Agency for Hydrometeorology does not publish technical standards for reservoir monitoring. Measurement methods for Nurek and Kayrakkum are partially documented in World Bank and CAWater-Info dam safety assessment reports — external documents prepared for international projects, not official Tajik government publications. These engineering reports describe the instrument types installed but do not constitute transparent public methodology documentation.

meteo.tj maintains a functional English-language version of its website, listing services in English and providing contact information — though no actual data is accessible through it. CAWater-Info and SIC ICWC publish their knowledge-base pages and yearbooks in English. The World Bank, ADB and IEA publish substantial English-language technical documentation on Tajikistan's water-energy nexus. However, since no primary operational data is publicly accessible in any language, English usability of non-existent data is moot. The score reflects that the minimal published information (static specs on CAWater-Info, ICWC yearbook) is available in English, and meteo.tj's English portal exists, but the underlying data gap means this dimension provides negligible practical value.