Before you invest in a new system consider this
Questions to ask Sewage Treatment Plant Suppliers
Where is it manufactured?
Who tested it?
When was it tested?
Can I have a copy of the report?
If not why not?
The true power consumption?
How often does it need de-sludging?
Do you have customer references?
If You Get This Information Check
The test facility used
Was it done during the warmer months? (This can enhance the test results)
How often was it De-Sludged during the test
How Many kWh/d did it use?? check out the suppliers claims
*AT WE BUILD IT, WE WILL GIVE YOU ALL THIS INFORMATION, AND GIVE YOU HONEST GUIDANCE ON THE SELECTION OF YOUR TREATMENT PLANT*
Sizing and Regulations
In order to work out which plant is suitable for your property you must abide by the British Water flows and loads guide (4). The table of loadings on the guide, set out the suitable sizes of treatment plants for different types of property.
A domestic dwelling is fairly straightforward to work out. This is usually the number of bedrooms in the property plus two. For example, a three bedroom house becomes five (requiring a Bio-Pure 1). However, if the treatment plant is required for more than one property, then two must added to each dwelling. For example, a three bedroom house plus two = five, a two bedroom house plus two = four and a four bedroom house plus two = six, will become fifteen (5+4+6=15). This will require a Bio-Pure 4.
For a non- residential property, the size Bio-Pure required will depend on the purpose of the property. Please contact us and we will be able to work out the correct size Bio-Pure required for your needs.
Overview of Discharges
The Bio-Pure can discharge directly to surface water (and groundwater) as it is treated. As the owner of the Bio-Pure, it is your responsibility to check whether you need to obtain a permit to discharge (consent to discharge), or whether you are under the general binding rules(England) or exemption (wales).
It is illegal to discharge sewage effluent without a registration (of exemption) or permit. Failure to register or obtain a permit may result in enforcement action by the Environment Agency.
The General Binding Rule
The general binding rule came into force January 2015, which simplified and replaced the need for exemptions (in England only), and apply to all small sewage treatment system and septic tanks. This rule sets out conditions that a plant needs to meet in order to be used without the need for a permit
The criteria to meet:
1) To surface water (i.e. a river, stream, estuary or the sea) and the volume is 5m3 a day or less
2) To groundwater via a drainage field or filtration system and the volume is 2m3 a day or less
*You must have necessary planning permission and approval for building regulations.
*You must not discharge trade effluent. The effluent must be domestic in nature and not cause pollution.
*You must not reasonably be able to connect to a public foul sewer. You can not register if you are within 30 metres.
*You must not be in close proximity to a sensitive site, which includes; conservation areas, bathing waters and groundwater source protection zones (The criteria is different for discharges to groundwater and surface water).
Click here to see groundwater protection zones (click on groundwater or Drinking water safeguard zones and type in your postcode).
*You must install and operate the system in accordance with the manufacturers installation and operations manual.
*You will also need to properly maintain your sewage treatment system and keep servicing records for 5 years.
*When discharging to surface water, the water body must have water in it throughout the year.
If you cannot meet any of the above criteria, you must speak to the Environment Agency, as you will need to apply for a permit.
Registering your exemption- Wales
Registration is done through natural resources wales and is free. The occupier of the land must notify the Environment Agency of the exempt small sewage effluent discharge. Some information will be required for the exemption.
This will include:
- The occupiers name and address (including post code)
- Location of the discharge
- A description of the small sewage effluent discharge
- Agreement to comply with and abide by the conditions of registration
- A 6 digit National Grid Reference of the discharge point
If you are discharging 5m3 a day or less from a sewage treatment plant to surface water, you will need register for an exemption, before making a discharge. If you have already made a discharge, you need to register as soon as possible.
Obtaining a permit
If you already have a Consent to Discharge this will automatically become an environmental permit. You do not need to re-apply.
If you can not comply with the above criteria, you will need to apply to the Environment Agency for a permit.
View Consent information for Scotland