Note: | Water supply schedule and water supply volume for 2021 and thereafter are calculated from reclaimed water consumption contracts between TSMC and government departments (Southern Taiwan Science Park Administration and Tainan City Government) |
Item | Status in 2019 |
Standards Set by Science Park Administration |
Targets in 2025 |
2019 Improvement Outcome (2014 as Baseline) | Preventive Techniques |
---|---|---|---|---|---|
TMAH | 7.86 |
HSP: 30 CTSP: 20 STSP: 60 |
1.0 | Reduced by 74% from the previous year |
|
Copper ion | 0.09 |
HSP: 1 CTSP: 0.8 STSP: 1.5 |
0.1 | Reduced by 76% from the previous year(Achieved 2025 goals ahead of schedule) |
|
NH4-N | 17.31 |
HSP: 30 CTSP: 20 STSP: 60 |
20 | Reduced by 89% from the previous year(Achieved 2025 goals ahead of schedule) |
|
Chemical oxygen demand | 185.5 |
HSP: 500 CTSP: 500 STSP: 450 |
100 | Reduced by 54% from the previous year |
|
For more information, please read TSMC 2019 Corporate Responsibility Report: