• Harrow Area Flooding

We are slowly progressing towards assembling a response to Bucks Council regarding the Harrow area flooding. Paulw has conducted a visual check on the area up to the top of Warrendene Rd and Matt Hopkins is part way through checking drainage at Hatches, Bryants Bottom Rd and Hampden Rd.

We hope to be able to write to Bucks Council by the end of June.

• Thames Water

Pumping out at the Surgery has continued through this month and tankering from Boss Ln. The latter is becoming increasingly unpopular with the residents of Boss Ln because of noise and access problems.

The DIG met with a small team from TW this month. Results from meeting:

• We now have a permanent contact for the DIG in Maisie Banks, Custoner Liaison engineer.
• Mark Dolby (Snr engineer) is in the process of putting forward suggestions for hydro-braking for Hughenden Valley. This has to be data modelled for the whole valley and will include the Naphill & HV sewer junction problem. No timescale available on this.
• TW looking at reducing the frequency of overtankering with the weather improvements
• There will be a cleanup done in Boss Ln and the field below the pumping station when tankering /field leakages finished.

• Chiltern Society

Paul meeting with James Donald of Revive the Wye group 17^th June.

Paul Woodford

HVRA DIG

• Harrow Area Flooding

We wrote to Rachael Shimmin the Bucks Council CEO requesting an investigation into the causes of the flooding, and have received two replies from Rosie Tunnard. The first essentially describes the flooding as a well maintained drainage system simply being overwhelmed by sheer volume of rain and detritus swept along the road.

The second carries some notes from the Flood Management Team, who are putting some work into analysing how the problems occurred.

We are currently looking into the contents of these letters and intend to reply soon. However, there are some possible good points in the letters:

• Clearance of gully systems have been ordered
• Looking into possible solutions to better direct road water into the Warrendene ditch
• Hampden Rd ditch is to be cleared (looking very overgrown)

• Thames Water

Despite expectations to the contrary, TW started overpumping by the Surgery this month. This has provided much relief to those neighbours who were experiencing sewage spillages in their gardens.

We are currently organising a daytime meeting with Mark Dolby, a Snr TW engineer to visit and update us on current activities.

The sewer remains full and becomes threatening when we have heavy rain or when the  overpumping unit stops running for any reason.

A look at the Hughenden Borehole graph shows that the groundwater levels are slowly going down, but have a long way to go before the stream stops running.

• Chiltern Society

Paul was invited to a Chiltern Society Friends event, where representatives of the groups that look after the Chiltern chalkstreams gathered. This was a new event to try and bring each of the groups closer and encourage joint production of plans etc.

Paul will pick up with the Revive the Wye group who look after the Wye but also have the Hughenden Stream as part of their remit.

Paul also to identify any persons or group in our valley wanting to take on a role in this.

Paul Woodford

HVRA DIG

               Sewage overpumping unit installed today by the surgery.

Paul

A DIG meeting was held to discuss the flooding events the Valley had been experiencing in February and March. Attendees were essentially DIG members local to lower Valley Rd affected by the sewage issues. The issues discussed included:

Surface water flooding along Warrendene and into the Harrow and gardens close by

Sewage leakage problems experienced in lower Valley Road and Boss Lane affecting up to 20 houses caused by prolonged rainfall

The meeting spent some considerable time talking about individual experiences, action taken to cope with incidents of flooding and help given by local agencies.

Bucks Council

It was noted that only following the Harrow flooding of 17/18^th did maintenance work on road drains start. This is work that had been requested several times via FixMyStreet by the DIG.This work is not complete yet and is viewed as a contributory factor in worsening the results of the flooding at that time.

It was decided that the DIG should write to the Chief Executive of Bucks Council to express our dissatisfaction with the service provided and to request a detailed investigation be undertaken to determine the cause of the flooding and how it might have been prevented.

Thames Water

Since losing access to Darren Trenchard, our main contact at Thames Water, we had been trying to find someone to replace him, without success. We were finally able to get some up to date intelligence on TW via an introduction thanks to Roger Hewitt. Our findings are as follows:

We were informed that TW have changed dramatically since our flooding 10 years ago, principally:

Centralisation of management and operationsChange in approach to planning. As we have seen with the DWMP although this is now a massive operation although there is precious little documentation relating to Little Marlow other than a page with reference to sewer lining, surface water management and investing in the sewage treatment works. They don’t say what they will do at Little Marlow (I guess it will be mostly increasing storage capacity to reduce releases into the Thames). There is absolutely no reference to Hughenden Valley.Equipment and resources are now centrally located in warehouses rather than, say, at the STW. This suggests our dedicated overpumping units are no longer at Marlow and in any event no one at TW probably has any knowledge of units dedicated for our use. I did receive a mail from Simon Cook (next to Chiltern Car Sales) at the weekend who said a Lanes engineer told him ‘all resources are out in use’ when he asked about the overpumping units.

The relationship has fundamentally changed in recent years with the Environment Agency. The legislation has been vastly tightened up making it far more difficult to gain approval on things like overpumping.

The response from TW during this month was agreed as being poor to useless. In effect, any call outs resulted in TW contractors visiting houses and offering sympathy but little else. There had been no help from requests for local pumping out of inspection pits or to install  overpumping units such as was put in place in 2014. However, towards the end of March, frequent tinkering took place at Spring Rising, where there was considerable flooding from an inspection pit.

Actions agreed:

We would remove all references to overpumping from the DIG website as that is something no longer reserved for us

We would write to the CEO of Thames Water to express our dissatisfaction with the recent help given. We will compare it with the much higher level of help given in 2000 and 2014. Also, to request some proper detail on the Drainage Plans for our area plus to provide us with an engineering contact who could visit us and hear our complaints.

Paul Woodford

HVRA DIG