Appendix C

 

WATER SUPPLIES DEPARTMENT

 

HONG KONG

 

 

Water Quality Objectives of Sea Water for Flushing Supply

 

(at intake point)

 

 

Chemical values expressed in mg/l (parts per million)

 

Parameters

Target

Colour (H.U.)

<20

Turbidity (N.T.U.)

<10

Threshold Odour No. (T.O.N.)

<100

Ammonical N

<1

Suspended Solids

<10

Dissolved Oxygen

>2

Biochemical Oxygen Demand

<10

Synthetic Detergents

<5

E.Coli/100ml

<20,000

 

 

Note:  1.  The above data is for information only.  It must not be published or quoted in any advertising material.