Environmental Authorisations (Scotland) Regulations 2018: Proposed Standard Conditions for Registration level activities

2.1.2. Sewage effluent from a treatment system that is more than two years old on the date of application

There are three core conditions that apply to these activities. These are:

The treatment system and outfall pipe must be maintained so that they are fully functioning except during any period when maintenance work is being carried out.
The discharge must not have a significant impact on any supply of water for human consumption that was in existence on the date of application for this authorisation.
The discharge must not have a significant impact on the water environment as a result of:

(a) iridescence or sheen;
(b) discolouration;
(c) deposition of solids;
(d) increased foaming; or
(e) microbiological growth.

These conditions allow SEPA to take enforcement action if the discharge is having an unacceptable impact on the receiving water environment.

**Interpretation of terms**
Term	Definition
Population equivalent	The maximum daily organic biodegradable sewage load. A population equivalent of one has a biochemical oxygen demand (BOD) of 60 grams of oxygen per day, which is equivalent to one person in a domestic property.
Sewage	As defined in section 59(1) of the Sewerage (Scotland) Act 1968.
Water for human consumption.	Water that may be ingested by humans, used in the preparation of food or drink, or used in the cleaning of materials involved in the storage or consumption of food or drink.