• Preliminary Site Investigation Works
Initial site visit to ascertain possible connection points including confirmation of manhole invert levels.
• Preliminary Private Drainage Design
Confirming the line, level and size of the private drainage network for the agreed working layout plan. Liaising with the Water Authority with regards connections and anticipated flows as required.
• Full Private Drainage Design & Layout Plan
Producing the detailed layout plan, manhole schedules, setting out information and suitable details and calculations for Building Regulations approval.
• Preliminary Section 104 Drainage Design
Confirming the line, level and size of the S104 Adoptable drainage network for the agreed working layout plan. Liaising with the Water Company with regards connections and anticipated flows as required.
• Attenuation/Soakaway Design & Detail
• Attenuation systems
Full design and detailing including attenuation sizing, type, location and flow control chamber and device. Attenuation designed in accordance with the relevant standards and Environment Agency requirements.
• Soakaway systems
Full design and detailing including sizing, type and location. A complete set of soakaway calculations will be provided for Building Regulations or Highways approval.
• Full Section 104 Drainage Design & Layout Plan
Producing the detailed layout plan, manhole schedules, longitudinal sections, setting out information and suitable details for Section 104 approval. All details will be produced in accordance with the current Sewers for Adoption and Water Company requirements including coloured layout plans.
• Full Section 104 Calculations
A complete set of adoptable drainage calculations produced using a hydraulic model of the system will be provided for Section 104 approval.
• Combined Drainage Layout Drawing
Adoptable and private drainage details will be combined to produce a generic coloured plan clearly defining private and adoptable foul and surface water drainage.
• Drainage Details
Producing all necessary detail drawings including standard manhole details, catch pit details, etc
• Section 104 Technical Approval Submission
Submit copies of all relevant adoptable drainage drawings and calculations for Section 104 Technical Approval.
• Section 104 Technical Approval Comments
Reply to any technical approval comments from the Water Company and amend details as necessary for re-submission.
• Full Section 104 Submission
Submit the required number of drawings and calculations along with the application documentation for the formal Section 104 agreement.
• Sewer Requisitions
Prepare details and submit the required information for sewer requisitions.