A result of the examination of water

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The pH became the approximate value of the human blood ( pH7.0→pH7.2 )Japanese >
The general bacteria was decreased. ( 25→9 ※Value in 1ml )
The iron was increased. ( 0.10mg/l→0.12mg/l )
The potassium permanganate consumption of the indicator of the water pollution was decreased. ( 1.0mg/l→0.5mg/l )

Before conversion 水質検査結果1

After conversion 水質検査結果2

Comparison table水質検査比較表

Examination day: August 15, 1994
Examination purpose: The propriety of water quality standards in water supply law
The chief of sanitation section in Setagaya-ku Yutaka Sakurada