Building Regulations 2010 H1
Foul water drainage
Official text
H1.—(1) An adequate system of drainage shall be provided to carry foul water from appliances within the building to one of the following, listed in order of priority—
(a) a public sewer; or where that is not reasonably practicable,
(b) a private sewer communicating with a public sewer; or where that is not reasonably practicable,
(c) either a septic tank which has an appropriate form of secondary treatment or another wastewater treatment system; or, where that is not reasonably practicable,
(d) a cesspool.
(2) In this Part “foul water” means waste water which comprises or includes—
(a) waste from a sanitary convenience, bidet or appliance used for washing receptacles for foul waste; or
(b) water which has been used for food preparation, cooking or washing.
Limits on application
Requirement H1 does not apply to the diversion of water which has been used for personal washing or for the washing of clothes, linen or other articles to collection systems for reuse.
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