Page

Clause

Comments

i

Foreword

Conveys the main objectives of SFA6 and the key areas of change. It recognised that SFA6 had to speed up the adoption process and introduce new sections on Lateral Drains, SUDS and PPG 25. The need to address a specification for smaller pumping stations complements the details for larger pumping stations. The use of addendums has been minimised to a far greater extent in SFA6 than the 5th Edition which has resulted in Sewerage Undertakers accepting that they will not use any addendums other than those for pipe materials and pumping stations. Both these addendums will be posted and updated on the this website (subject to approval after any Steering Group Review Meetings).

iii

Drafting Group

Shows the people involved with the drafting of SFA6.

iv-vi

Contents

New format of the contents from the previous Editions.

 

PART 1

3

1.1

An updated definition of terms

3

1.2.4

The Guide now includes lateral drains as defined in the Water Act 2003.

4

1.2.6

Details within the Guide that incorporates the requirements of the Water Act 2003 and the Protocol on Design, Construction and Adoption of Sewers in England and Wales

4

1.2.8

The construction of petrol and oil interception are not covered by Section 104 Agreements.

4

1.2.9

New requirement to inform the Undertaker of any contamination on a site.

4

1.2.10

Statement on sustainability

4

1.2.11

Undertakers can now use Self Certification of Engineers who have the appropriate accreditation with the Undertaker

5

1.4.3

Transfers of Pumping Stations are now encouraged to be progressed during the maintenance period.

5

1.5.1

Developers are encouraged to progress the drainage requirements before a Planning Application is made.

5

1.5.5 & 6

Enhancement of the disputes procedure that can be invoked by a Developer.

6-10

Flow Charts

More detailed information on the procedures and timescales, with the main change being the bond can be cancelled at the time of the issuing of the Provisional Certificate.

11

1.7.1

Additional information and requirements to enable a Provisional Certificate to be issued.

11

1.7.2

Undertakers’ obligations with regard to the issuing of the Provisional Certificate.

11

1.7.7

New paragraph transposed from the Model Agreement detailing the time periods when an Undertaker can sanction works at the cost of the Developer and call in the Surety.

12

1.8.4

Undertaker to issue a Vesting Declaration in a reduced timescale of four weeks instead of two months.

12

1.9.1

Minimum fee increased from £250 to £500

12

1.9.2

Highlighting the Developers option of using the disputes procedure if it is felt that the Fees/Bond are exorbitant.

13

1.10.1

Minimum Bond increased from £2000 to £5000.

13

1.10.4

Some Undertakers may allow either a reduced Bond or a Bond waiver

13

1.10.5

As previously stated, the Bond can be released at the time of issuing the Provisional Certificate except where a Pumping Station is part of the Agreement.

13

1.11.1

Increased details of bodies who may need to be consulted for any Statutory Consents.

13

1.11.2

Any information relating to the Planning Approval needs to be forwarded to the Undertaker.

14

1.12

Enhanced details for Highway Drainage which may be required by some Undertakers.

15

1.18

Durability of any Specialist Sewerage System need to be proven over a 20 year period

15-17

1.19

New section on SUDS setting out what Undertakers are prepared to adopt and the maintenance responsibilities.

 

PART 2

21

2.2

Only item which is covered in Part 1 & 2 as being updated on the this website after the launch of SFA6 is the pipe materials

21

2.4.4

Stand off distances for rising mains need to be agreed with the Undertaker.

22

2.4.7

Surface Water Outfalls greater than 300mm require a hinged lockable safety grille.

22

2.4.9

New requirement for the planting of trees near sewers.

22-23

2.5

Incorporated table and sections for Building over or near to a sewer. Adapted from SFA5 addendums with Undertakers individual distance criteria.

24

2.6

New section on the diversion of public sewers within a development.

24

2.7.3 & 4

Further commentary to aid Developers when making a connection to public sewers.

24-26

29

Approval is required on shallow manholes, manhole chamber sizes amended to omit 1350mm, use of “in-fill” covers not allowed, new bedding requirements in heavily trafficked roads, new details for backdrops, additional information on brickwork and a table adapted for SFA5 addendum on opening sizes and requirements for each Undertaker.

27

2.10.3

New table showing Undertakers Protection Measures for Sewers.

27

2.11

Alteration to the minimum size of a sewer.

27-28

2.12

New criteria for industrial developments and for 100mm pipes.

28

2.13.6

Highlighted position on the rights of a Developer to question the hydraulic design for surface water on the site.

29

2.14.2 & 3

Added paragraphs on the use of storage for the protection of flooding.

29

2.15

This section in SFA6 is a completely new set of information about surface water discharges and reflects what is in the Interim Code of Practice for SUDS and PPS25, with surface water management being a material consideration in the Planning Process. Reference to PPS25 was deemed to be important and further guidance will be available with PPS25 in the form of “Practice Guides” in Autumn 2006.

30

2.16.4

New criteria on the need to install a manhole at the end of a rising main to gravitate into the existing sewer.

31-40

Figures 2.1 to 2.10

New details to support various parts of the Guide.

 

PART 2B

41-46

2.17 to 2.22

Re-titled section to cover submersible Pumping Stations not exceeding 30kw per pump.

42

2.18

Location of habitable buildings near a Pumping Station may be subject to a reduction of the 15m distance depending on the local circumstances like the size of the Pumping Station or its protection by inhabitable buildings.

 

PART 2C

47-50

2.23 tp 2.28

New section which introduces the concept of Lateral Drains as set out in the Water Act 2003.

 

PART 3

51-80

3.1 to 3.19

M & E Specification for Small Pumping Stations which has been updated in line with the new standards and will be accompanied by an addendum on the this website.

 

PART 4

81-108

4.1 to 4.19

This is a new section in the Guide which covers small Pumping Stations where the number of connected properties does not exceed 15. It will also be complemented with a set of addendum on the WRC website.

 

PART 5

109-144

5.1 to 5.7.11

This part of the Guide is updated in line with new standards and is compiled in association with the Civil Engineering Specification for the Water Industry (CESWI)

 

PART 6

145-163

Model Agreement

The only substantive change to the Model Agreement is that Undertakers may not now require a Deed of Grant of Easement. Although it needs to be assessed in relation to each set of circumstance. As a norm, the statutory powers in the Water Industry Act 1991 allow Undertakers not to necessarily require this Deed of Grant of Easement.