Under section 12 WRG, the authority must set the amount and type of water use without impairing public interests or existing rights. The Act identifies lawfully exercised water uses other than common use, certain water-use entitlements and ownership of land as existing rights. A project operator should identify known abstractions, permits and affected properties early. Section 12(4) also addresses changes in groundwater levels: they do not prevent a permit if the affected land remains usable as before. The landowner is entitled to appropriate compensation for an expert-forecast deterioration in soil condition.
Available water must be assessed throughout the year. Section 13(1) WRG refers to the applicant’s needs, existing water conditions, the amount and quality of available water under changing water levels, natural groundwater recharge and the need to use water sparingly. Technical measures that are possible under current technology and required by the water conditions must be provided. Under subsection 3, water use must not deprive municipalities, localities or settlements of water needed for firefighting, other public purposes or residents’ household and economic needs. A permit must also preserve part of each inflow for the ecological condition of the water body and other higher-value purposes, especially water supply, under subsection 4.
If the extent of water use at an existing installation is uncertain, section 13(2) WRG sets a default: the water-use right covers the undertaking’s needs at the time of the permit, unless the installation has lower capacity. Compare any planned increase with the permit, the needs at the time it was issued and the installation’s capacity.
Section 12(3) WRG refers to the eighth section of the Act for compulsory rights that may remove or restrict existing rights. This does not establish a blanket route for every snowmaking project. Whether the statutory requirements are met must be assessed against the affected rights and the specific proposal. See section 12 WRG on public interests and existing rights and section 13 WRG on the amount and type of water use.