APPENDIX 3: CONTRACTORS APPROVED FOR THE IN SITU APPLICATION OF POLYMERIC COATINGS
Information Letter 9/2006 provided details of changes to the in situ lining of water mains and provided clarification on the role that DWI will take from 1 January 2007. This was separated into three parts:
Notification of DWI's withdrawal as nominator of certifying bodies and management of the Operational Requirements and Code of Practice.
- Update to the Operational Requirements and Code of Practice for the In-Situ Resin Lining of Water mains.
- Determination of Minimum Spin-Up Time and Adequate Mixing.
- DWI has been publishing a list of nominated certifying bodies capable of accrediting resin lining contractors and equipment until
December 2006. It has also managed the new Operational Requirements: In-situ Resin Lining of Water Mains and Code of Practice: In Situ Lining of Water Mains. Since the issue of Regulation 31 Letter 03/2005 it has been established that it was inappropriate for DWI to manage nominated bodies to accredit contractors due to a potential conflict of interest with DWI's enforcement role.
With effect from 31 December 2006, the DWI will no longer be nominating certifying bodies and the Operational Requirements will be amended to reflect this change. It will be the responsibility of each company to ensure that it introduces processes and procedures that will ensure there is no impact upon water quality of in-situ lining. The Operational Requirements: In-situ Resin Lining of Water Mains and Code of Practice: In Situ Lining of Water Mains will similarly no longer be the responsibility of the DWI from the same date.
Further details can be found on the Information Letter 9/2006 and associated appendices - see website: http://www.dwi.gov.uk/regs/infolett/2006/info0906.shtm.
To date, four organisations have been appointed to assess and certify lining contractors: WRc plc, FaberMaunsell, WRc- NSF and RPS.
The following tables list the lining contractors which have been approved by each of the appointed organisation and have achieved full third party certification by the 31 st December 2006. The resins for which the lining contractor have been approved are listed against the company names.
3.1 Lining Contractors with full third party certification approved by WRc plc for the in situ application of polymeric linings
Contractor | Material |
|---|
Alfred McAlpine Utility Services | Mercol Geopox GX 014 |
Balfour Beatty Utilities Ltd | ELC 173/90 and Mercol Geopox GX 014 |
Doocey Pipelines Ltd | ELC 173/90 |
DVS Pipeline Ltd | Fosroc Nitoline WP |
Fastflow Pipeline Services Ltd | Mercol Geopox GX 014 and Copon Hycote 169 |
Laing Utilities Ltd | ELC 173/90, Fosroc Nitoline WP, and Fosroc Nitoline WP2 |
Pipeway Ltd | ELC 173/90 |
PN Daly Ltd | Fosroc Nitoline WP2 |
Subterra Ltd | ELC 173/90 |
Information on the status of the third party certification of lining contractors and information on recently approved lining contractors can be obtained from Iain Naismith, WRc, Frankland Road, Blagrove, Swindon, Wiltshire SN5 8YF. Telephone: 01793 865111, Fax: 01793 865001, e-mail: iain.naismith@wrcplc.co.uk .
3.2 Lining Contractors with full third party certification approved by FaberMaunsell for the in situ application of polymeric linings
Contractor | Material |
|---|
Balfour Beatty Utilities Ltd | Copon Hycote 169 and Copon Hycote 169 HB** |
May Gurney Ltd | Copon Hycote 169 |
DVS Pipelines Ltd | Fosroc Nitoline RSM* |
Laing O'Rourke | Copon Hycote 169, Fosroc Nitoline RSM*, Copon Hycote 169 HB** and Copon Hycote 169 LV |
Subterra Ltd | Fast-Line Plus |
CaL Solutions Ltd. | ELC 173/90** |
* issue with product patent
** interim approval given
Further information regarding the accreditation regime or the current status of approved lining contractors is available from Clive Compson of FaberMaunsell, Environment Division, Bush House, Prince Street, Bristol, BS1 4QD, Telephone: 0117 9017000, Fax: 0117 9017099, E-mail: clive.compson@fabermaunsell.com
3.3 Lining Contractors with full third party certification approved by Wrc- NSF for the in situ application of polymeric linings
Contractor | Material |
|---|
DVS Pipelines Ltd | Copon Hycote 169 HB |
May Gurney Ltd: | Copon Hycote 169 and Copon Hycote 169 HB |
Further information regarding the accreditation regime or the current status of approved lining contractors is available from Ken Reed or Ian Warren from WRC- NSF, Fern Close, Pen-y-Fan Industrial Estate, Oakdale Gwent, NP11 3EH, Telephone: 01495 236260; E-mail: lining-audit@wrcnsf.com
3.4 Lining Contractors with full third party certification approved by RPS for the in situ application of polymeric linings
Contractor | Material |
|---|
White Utilities Ltd | Copon Hycote 169 |
Subterra Ltd | Fast Line Plus |
Laing O'Rourke Ltd | Copon Hycote 169 |
Further information is available from Jed Knox, RPS Water Services, Telford House, 105 Dalton Avenue, Birchwood Park, Warrington, Cheshire WA3 6YF, Telephone: 01925 847960; E-mail: knoxj@rpsgroup.com
Important Note:
Nominated Certifying Body
From the 1 st January 2007 there will be no DWI Nominated Certifying Bodies and therefore new accreditations through these bodies will not be acceptable.
There is currently no body nominated for the purpose of accrediting resin lining contractors and equipment. Water Undertakers are currently putting in place a system to nominate and manage certifying bodies. Updated documentation will be available when this has been implemented.
Interim queries should therefore be directed to the appropriate Water Undertaker.
Nominated Training Provider
From the 1 st of January 2007 the DWI will no longer nominate Training Providers.
There is currently no body nominated for the purpose of providing training to lining operatives and Utility Representatives in the theory and site practice elements of the process. Water Undertakers are currently putting in place a system to nominate training providers. Updated documentation will be available when this has been implemented.
Interim queries should therefore be directed to the appropriate Water Undertaker.