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| 指標/級別 | EW-I | EW-II | EW-III | EW-IV |
| 電阻率M Ω·cm(25℃) | 18以上(95%時間)不低于17 | 15(95%時間)不低于13 | 12.0 | 0.5 |
| 全硅,zui大值, μg/L | 2 | 10 | 50 | 1000 |
| 1 μm微粒數, zui大值, 個/mL | 0.1 | 5 | 10 | 500 |
| 細菌個數,zui大值,個/mL | 0.01 | 0.1 | 10 | 100 |
| 銅,zui大值, μg/L | 0.2 | 1 | 2 | 500 |
| 鋅,zui大值, μg/L | 0.2 | 1 | 5 | 500 |
| 鎳,zui大值, μg/L | 0.1 | 1 | 2 | 500 |
| 鈉,zui大值, μg/L | 0.5 | 2 | 5 | 1000 |
| 鉀,zui大值, μg/L | 0.5 | 2 | 5 | 500 |
| 氯,zui大值, μg/L | 1 | 1 | 10 | 1000 |
| 硝酸根,zui大值, μg/L | 1 | 1 | 5 | 500 |
| 磷酸根,zui大值, μg/L | 1 | 1 | 5 | 500 |
| 硫酸根,zui大值, μg/L | 1 | 1 | 5 | 500 |
| 總有機碳,zui大值, μg/L | 20 | 100 | 200 | 1000 |