Navigate Up
Sign In
  • عربي
  • ||
  • Sitemap
  • ||
  • Subscribe to our E-mail list
  • ||
  • +974 - 44266666
Building Permit Systems
Ministry of Municipality

Most Frequent Mistakes

​Ministry of Municipality

The Public Works Authority - Ashghal

The PWA is responsible for all public foul sewerage, surface water and ground water drainage systems in the State of Qatar.
All applications for sewerage and drainage for servicing new developments are subject to approval by the Drainage Affairs as part of the Building Permit approval procedure before such facilities can be built.
This Developer’s Guide is for small developments up to 350 persons, where the peak flow does not exceed 5l/s. Larger developments should be designed in accordance with the requirements of Drainage Affairs’ Vol 2 – Foul Sewerage design manual.

A house connection is defined as the connection from a development (comprising domestic, commercial, industrial, institutional premises, etc) to transfer foul flows to the public sewerage system.
For every house connection, a terminal manhole (Manhole Number 1 – MH1), in accordance with the Standard Drawings, should be provided and should be positioned as shown on 3.3.
The terminal manhole should normally have maximum depth 1.2m. The depth of first Inspection Chamber should be 0.45m.

- They should be designed and constructed to enable foul flows to pass to the public sewer without flooding or surcharge
- They should be of 150mm minimum internal diameter
- They should laid at minimum gradients 1:60
- They should be constructed to watertight standards in accordance with the standard drawings and specifications
- The last Inspection Chamber is known as MH1 (terminal manhole) shall be located within the property boundary but is PWA property.



تــواصـل معـنا

Our Contacts

Time: 7 AM to 2 PM

Direct Telephone: +974 - 44347231/2

Telephone: +974 - 44348888

Fax: +974 - 44430239

Mailing Address P.O. Box: 22332


Powered by: - All copyrights reserved for Ministry of Municipality