民國88年自來水原水水質統計表
THE STATISTICAL RAW WATER QUALITY DATA OF PUBLIC WATER SUPPLY IN 1999

|  | 單位：毫克/公升
|  | UNIT：mg/L

取樣位置 SITES OF SAMPLING | 頭城營運所頭城淨水場
受檢次數 NO.OF SAMPLE EXAMINED | 2
項目 ITEMS | 平均值 AVERAGE VALUE | 中數值 MEDIAN VALUE | 最大值 MAXIMUM VALUE | 最小值 MINIMUM VALUE
水溫 WATER TEMPERATURE(℃) | 21.75 | 21.75 | 22.50 | 21.00
濁度 TURBIDITY(N.T.U.) | 0.28 | 0.28 | 0.30 | 0.25
鹼度 ALKALINITY | 碳酸 CARBONATE |  |  |  |
氫碳酸 BICARBONATE | 58.50 | 58.50 | 60.00 | 57.00
PH 指標 PH VALUE | 7.2 | 7.2 | 7.2 | 7.1
氯鹽 CHLORIDE | 7 | 7 | 7 | 7
硫酸鹽 SULFATE | 22 | 22 | 27 | 17
氟鹽 FLUORIDE | 0.12 | 0.12 | 0.12 | 0.12
氨氮 AMMONIA NITROGEN | ND | ND | ND | ND
亞硝酸鹽氮 NITRITE NITROGEN | ND | ND | ND | ND
硝酸鹽氮 NITRATE NITROGEN | 0.45 | 0.45 | 0.52 | 0.38
溶解固體量 DISSOLVED SOLIDS | 138 | 138 | 140 | 136
總硬度 TOTAL HARDNESS | 71.6 | 71.6 | 74.9 | 68.2
鈣 CALCIUM |  |  |  |
鎂 MAGNESIUM |  |  |  |
鐵 IRON | ND | ND | ND | ND
錳 MANGANESE | 0.005 | ND | 0.010 | ND
大腸菌類數 COLIFORM(MPN/100ML) | 6 | 6 | 7 | 4