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

 Activity description

The discharge of sewage from:

1. less than or equal to 10 domestic properties; or
    
2. non-domestic properties with a total population equivalent of less than or equal to 50; or
    
3. a combination of domestic and non-domestic properties with a total population equivalent of less than or equal to 50; 

to a watercourse that provides a low amount of dilution and is outside:

1. a zone to protect shellfish water;
    
2. a zone to protect bathing waters; or
    
3. a phosphate sensitive catchment.

Standard conditions 

1. The sewage must be treated:
   
   (a) by a secondary treatment system; or
   
   (b) to a standard that is better than that provided by a secondary treatment system;
   
   (c) and a partial soakaway.
    
2. The treatment system must be maintained so that it is fully functioning except during any period when maintenance work is being carried out to the system.
    
3. The partial soakaway must have a high level overflow.
    
4. The partial soakaway must have a minimum area in square metres (m²) of:
   
   (a) 10 multiplied by the total number of domestic properties; or
   
   (b) 2 multiplied by the total population equivalent for all non-domestic properties; or
   
   (c) 2 multiplied by the total population equivalent where there is discharge from a combination of both domestic and non-domestic properties.
    
5. 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.
    
6. 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.
   
   For the discharge of untreated sewage, the following condition will be included:
    
7. If the sewage has been discharging to the water environment for more than two years, without treatment, on the date of application for this authorisation, conditions 1, 2, 3 and 4 do not take effect until 12 months after the date the authorisation was granted.