Table A2

Water performance index

QuantitativeQualitative
Water use (wu)
(0–4 score)
Wastewater discharge (wd)
(0–4 score)
Wastewater reuse (wr)
(0–4 score)
Water-related reward (wrr)
(0–4 score)
Water-related punishment (wrp)
(0–4 score)
Equal to 1 if water consumption is lower than the previous year and 0 if otherwiseEqual to 1 if wastewater discharge is lower than the previous year and 0 if otherwise100% ≥ wr >75%: 4 scoreInternational level rewards: 4 scoreCancellation of business license/market
Ban: 4 score
Equal to 1 if (water consumption/current year’s operating income) is lower than the previous year and 0 if otherwiseEqual to 1 if (displacement/total sales revenue for the year) is lower than the previous year and 0 if otherwise75% ≥ wr >50%: 3 scoreNational level awards: 3 scoreFine: 3 score
Equal to 1 if water usage is less than the median water usage in the industry and 0 if otherwiseEqual to 1 if displacement is less than the median displacement in the industry and 0 if otherwise50% ≥ wr > 25%: 2 scoreProvincial level rewards: 2 scoreWarning/condemnation: 2 score
Equal to 1 if (water consumption/total sales revenue for the year) is lower than the median of the industry’s (water consumption/total sales revenue for the year) and 0 if otherwiseEqual to 1 if (displacement volume/total sales revenue for the year) is lower than the median of the industry’s (displacement volume/total sales revenue for the year) and 0 if otherwise25% ≥ wr > 0%: 1 scoreCity level and below rewards: 1 scoreCriticize: 1 score
  wr = 0: 0 scoreNo reward: 0 scoreNo punishment: 0 score

Note(s): The final score for water performance = (wu + wd + wr + wrr-wrp)/water risk, where wu denotes water use, wd denotes wastewater discharge, wr denotes wastewater reuse, wrr denotes water-related reward, wrp denotes water-related punishment and water risk denotes the water risk index of the basin to which the company’s actual geographic location belongs

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