T/CNHAW 04-2019 Ecological and Good Water Source Grading Evaluation
T/CNHAW 04-2019 Ecological and Good Water Source Grading Evaluation
Basic Information
Scope
Scope: This standard specifies the scoring method for ecologically good water sources, the rules for grading assessment, labeling, and re-evaluation. This standard applies to the grading assessment of surface water and groundwater sources used for the production of packaged drinking water. This standard does not apply to the scoring and grading assessment of water sources with a flow rate of less than 5 m3/h. Main technical content: The scoring of various surface water and groundwater sources suitable for the production of packaged drinking water is conducted from four aspects: water quality, ecological environment, water volume, groundwater outcrop conditions, and surface water stability. The sources are graded based on the scores obtained.