At the same time, water distribution is uneven (local stress zones may occur, particularly in western areas), but no structural shortage of drinking water is emerging at the level of the three regions.
Surface water quality indicators and compliance of drinking water sources with standards are generally at a high level:
- Jilin: 89.0% of surface water is rated “good/excellent”; compliance of drinking water sources with standards — 88.9%.
- Inner Mongolia: 80.2% is Class III or above; compliance of drinking water sources — 85.5%.
- Heilongjiang: 68.3% is rated “good/excellent”; after accounting for natural background factors, compliance of drinking water sources with standards — 100%.
Thus, the constraints lie in local water treatment, monitoring and targeted modernization rather than in the need to increase drinking water volumes through imports.
The water supply structure confirms that the regions rely on a combination of surface water and groundwater, with groundwater playing a significant role in Inner Mongolia.
The study also separately examined reservoir reserves, which reflect resilience to seasonality and weather fluctuations. Expressed in terms of household consumption, storage capacity amounts to:
- Jilin — 14.4 annual consumption volumes
- Heilongjiang — 9.2 annual consumption volumes
- Inner Mongolia — 4.7 annual consumption volumes