The main water resource for the region is the Chu River, whose flow is regulated by the Orto-Tokoy Reservoir with a volume of 470 million cubic meters. The river system also includes tributaries from the northern slopes of the Kyrgyz Ridge, such as Kyzyl-Suu, Shamshy, Burana, and others.
According to long-term observations, the annual flow of rivers in the Chui Valley amounts to 1.566 billion cubic meters, which allows for the irrigation of 92,565 thousand hectares of agricultural land.
Of the 276,694 thousand hectares irrigated by inter-farm networks, 173.3 thousand hectares (63%) receive water through inter-district main canals, including:
• OCHK-I — 16 thousand hectares (16.7 km);
• OCHK-II — 12.9 thousand hectares (21.5 km);
• Eastern Big Chui Canal — 34 thousand hectares (97.2 km);
• R-12 — 8.4 thousand hectares (16.44 km);
• Southern Big Chui Canal — 6.3 thousand hectares (36.96 km);
• Western Big Chui Canal — 64.2 thousand hectares (146.8 km);
• At-Bashy — 22.7 thousand hectares (43.23 km);
• Sovkhozny Canal — 11.11 thousand hectares (25 km);
• Tush Canal — 8 thousand hectares (8.61 km).
This information was presented in the report on the state of the water management system in the region.
Reservoir Filling at the Beginning of the 2025 Growing Season Compared to 2024
as of April 1
(as of April 1)
| Orto-Tokoy | 470.0 | 408.95 | 87% | 473.49 | 101% |
| Lower Ala-Archa (filling) | 51.2 | 51.31 | 100% | 51.66 | 101% |
| Lower Ala-Archa (channel) | 80.0 | 75.46 | 94% | 76.88 | 96% |
| Sokuluk | 9.3 | 9.31 | 100% | 9.27 | 100% |
| Spartak | 22.0 | 15.12 | 69% | 15.12 | 69% |
| Total | 632.5 | 560.15 | 89% | 626.42 | 99% |
Data as of February 16
| Orto-Tokoy | 470.0 | 454.24 | 96% | 271.46 | 57% |
| Lower Ala-Archa (filling) | 51.2 | 38.88 | 76% | 42.24 | 82% |
| Lower Ala-Archa (channel) | 80.0 | 58.86 | 74% | 64.14 | 80% |
| Sokuluk | 9.3 | 1.47 | 16% | 9.22 | 100% |
| Spartak | 22.0 | 11.62 | 53% | 15.12 | 69% |
| Total | 632.5 | 565.07 | 89% | 402.18 | 63% |
