Clerk to the Council "N 3 Chichester Close Mike Derrick COPYTHORNE East Wei low Romsey Tel 01794 322080 PARISH COUNCIL S051 6EY

E-mail: [email protected] 27 January 2012

Dear Mr Avery r0^

LAND ADJOINING COPPERFIELD, POLLARDS MOOR ROAD, COPYTHORNE

Further to my earlier letter of today's date, please find below a list of detailed points on which the Council would appreciate a response. The Council urges that all these issues are properly considered and discussed before the section 106 agreement is completed:

1. Can the engineering report give the correct designation ("Main River") to the "stream" flowing through "the grounds behind the bungalow and then across a field to the north west of the property"? 2. What is proposed to happen to the manholes to the overflow from the pumping station (in Pollards Moor Road), which are now buried and therefore inaccessible? 3. Why are the levels shown on the site plan not related to the OS datum? 4. Can a plan be supplied, on an Ordnance survey based map, to show the catchment area which has been used in the report? 5. What is the size of the catchment area in sq. km? (Is it 1.01 km?) 6. At the Planning meeting in October 2011, the EA representative said that the current situation would increase the flood risk to "at least one downstream property". What are the proposals to mitigate this increased flooding risk and will the cost of such work be borne by the public purse? 7. Please confirm that the flood hydrograph represents the position at the confluence of the catchment area under consideration and the roadside ditches (i.e at the entrance to the culvert under the Romsey Road). 8. What is the size of the culvert under the Romsey Road and its upstream and downstream invert levels ? 9. What is the flood flow design flow at the upstream end of the culvert? 10. What is the cumulative peak design flow to be carried by the culvert? 11. What is the return period of the composite phenomenon which is particularly important in this relatively small catchment area? 12. The Committee resolution of 18 October 2011 called for the section 106 agreement "to address the displacement of groundwater caused by the breach of planning control ..." . What has happened to the "groundwater" element? The groundwater contribution to flood flow is quite different in character from surface run off and should be analysed separately. 13. The highway ditch alongside the site (in Pollards Moor Road) from the entrance to the site to the road junction is constantly full to a level of around 300mm from the lowest point in the road. The maintenance of this ditch is the responsibility of the adjoining land owner. Can the blockage, in this watercourse, not be cleared?

Bartley Copythorne Newbridge Winsor Yours sincerely

Clerk to the Council

Mr Steve Avery Director of Park Services National Park Authority Town Hall Avenue Road Lymington S0419ZG cc Mrs Pat Wyeth, Chairman of the Planning Development Control Committee Dr Julian Lewis MP