I propose to take Questions Nos. 634 and 635 together.
It is understood that the guidelines referred to is the Code of Practice for Domestic Waste Water Treatment Systems.
In relation to the assessment of proposed waste water systems for single houses, the Environmental Protection Agency (EPA) published an updated Code of Practice in March 2021, which replaced the previous version issued in 2009.
The 2021 Code of Practice applies to site assessments and associated installations carried out on or after 7 June 2021. The Code of Practice establishes an overall framework of best practice in relation to the development of domestic waste water treatment systems, in unsewered areas, for protection of the environment and specifically water quality and human health.
The reasons for the Code of Practice were communicated to local authorities by an Explanatory Letter dated 24 March 2021. Reviewing the Code of Practice is a matter for the EPA to consider.
Under section 159 of the Local Government Act 2001 as amended, each Chief Executive is responsible for the staffing and organisational arrangements as necessary for carrying out the functions of the local authorities for which they are responsible.
In relation to the statistics requested in the question, my Department does not compile this information. While I cannot comment on individual planning decisions it is important that that water quality and human health is protected and the EPA provides appropriate advice in this regard. My Department has no plans. at this stage to carry out a survey as suggested.