Office/Services		Opening Hours
(i)	HQs Gen Enquiry Hotline (2877 0660)	8.30 am – 5.15 pm from Monday to Friday, lunch break 12.45 pm – 1.45 pm
(ii)	Enquiry Hotline relating to Sewage Charge/Trade Effluent Surcharge (2834 9432)	8.30 am – 5.15 pm from Monday to Friday, lunch break 12.30 pm – 1.30 pm   Incoming calls outside the service hours are recorded in a Telephone Recording System for follow-up actions in the following working day.
(iii)	Counter Enquiry Service relating to Sewage Charge/Trade Effluent Surcharge	8.30 am – 5.15 pm from Monday to Friday, lunch break 12.30 pm – 1.30 pm
(iv)	Inspection and/or request for drainage record plans at the Drawing Office at   (a) 43/F Revenue Tower (covering Hong Kong Islands and all outlying islands) (b) 13/F Kowloon Government Offices (covering Kowloon and New Territories)
(v)	Hotline for making Drain/Sewer Blockage Complaints (23001110)	24 hours a day from Monday to Sunday
(vi)	Handling of sewer blockage complaints and clearing of blocked sewers/drains.

For enquiries, please contact –

(a)        General Enquiries (tel: 2877 0660, or email: enquiry@dsd.gov.hk); or

(b)       1823 Citizen’s Easy Link (tel: 1823, fax: 2760 1823, email: tellme@1823.gov.hk, or on-line form: http://www.1823.gov.hk/form-enquiry.htm).

Please visit the central website on “five-day week in the Government” at http://www.info.gov.hk/info/5day/ for more information.