Wycombe DC - reserve sites  infrastructure roundtable 
 
Town planning update 
 

## Thames Water

April 2015 
 

## Agenda Thames Water And Planning Arena Infrastructure Delivery Key Infrastructure Issues Concluding Points Further Information Thames Water Utilities Limited Thames Water Facts And Figures Water Services 

9.2 million clean water customers 
 2,526m litres of drinking water supplied per day  
87 WTWs, 30 raw water reservoirs, 288 pumping stations and 235 underground service reservoirs  
31,186 km of water mains 

## Sewerage Services 

14.5 million wastewater customers   350 STWs treating an average of more than 4bn litres per day   65,585km of sewer, 2,800 pumping stations and 1.2 million manholes   Two sludge-powered generators and 21 chp plants generating 176 GWh of renewable electricity 
 
Too much or too little? 

## Planning Arena Responding To Planning Policy….

•
National policy 
 
•
NPPF - consider cumulative impact 
•
PPG - ensure new development & infrastructure is aligned 
 
•
Development Plans 
•
Wycombe Local Plan 

## 

•
Neighbourhood Plans 

## Planning Arena Responding To Planning Applications: - Infrastructure - Ensure Alignment Through Phasing To Avoid

issues such as 
•
Flooding 
•
Water supply constraints 
•
Pollution 
- Drainage and Water supply infrastructure –
strategies and assessments may be required 
- Amenity - for example noise, traffic should be considered 
 
- Odour - encroaching close to proximity to sewage works or 
pumping station 
 
- Use of Grampian style planning conditions - 
no development should start until….. 
 

## Business Plan

for 2015/16- 2018 
2020 - 2025  

## Delivery Factors That Influence Our Timescale For Infrastructure Delivery: - Clarity Of The Development Scale & Impact - Housing Number & Location, Is Permission In Place, Where Will The Connections Be Made?

 
•
Clarity of the cumulative impact - development s 
proposed for wider catchment area 
 
- Any potential regulatory changes E.g. consent 
limit changes? 
 
•
Investing– business plan cycles, cost benefit appraisal, 
requisition route available 

## Our 5 Year Plan 2015-2020 Infrastructure Issues - Wastewater Network

 
- Sewer flooding 
 
- Limited hydraulic capacity - Groundwater or surface water infiltration 
- Blockages 
 
- Network upgrades will be required 
 
- Delivered by developer and / or Thames 
Water 
- Examples of solutions: 
 
- Pumping stations, sewer upsizing, onsite 
treatment 

## Infrastructure Issues - Wastewater Treatment Sewage Treatment - Sewage Treated At Little Marlow And Princes

Risborough STWs 
 
- Upgrades to STWs expected 
 
- Delivered by Thames Water 
 

## Infrastructure Issues - Water Resources And Supply Water Resources - Short, Medium And Long Term Proposals To Ensure Sufficient

water resources - e.g. leakage reduction, water 
conservation, new resources - provided by Thames Water 

## Water Supply - Local Network Reinforcement Maybe Required

 
- Delivered by Thames Water 
 

## Key Input From A Planning Perspective General - Local Plan Policies That Support Developers Considering Water

and wastewater in an integrated approach to their development 

## Wastewater Treatment And Water Resources - Work Closely With Council And Developers On Timing And

phasing of development 
 
Water and wastewater network 
 
- Encourage developers to submit water and drainage  
     strategies with their planning application 
- Use planning conditions where needed 

## Conclusion

- Working closely with key stakeholders - Ensure developments do not compromise our 
assets or local amenity 
- Align infrastructure with new development through 
the development plan led system 
- Grampian conditions to be used where appropriate 
 

## 

•
Planning policy consultations 
•
Thameswaterplanningpolicy@savills.com 

## Key Contacts

  
•
Planning application consultations 
•
Devcon.team@thameswater.co.uk 
 
•
Developer Services (e.g. developer funded drainage strategies) 
•
Developerservices@thameswater.co.uk 
 
•
Thames Water Town Planning Manager (covering planning policy & Thames Water led planning applications) 
•
Mark.Mathews@thameswater.co.uk 
 
•
Thames Water Development Planning Manager (covering 3rd party planning application responses) 
•
Mark.Dickinson@thameswater.co.uk 
 

## Further Information

•
National Planning Policy Guidance - water and wastewater section - See Planning Portal 
•
Planning Advice for Integrated Water Management (2014) See www.cisl.cam.ac.uk/natcap. 
 
•
Thames Water Town Planning Guide (being updated Autumn 2014) 
•
Thames Water Business Plan for 2015 to 2020 - 
see Thames Water website 
•
Thames Water - Water Resources Management 
Plan for 2015 to 2040 - see Thames Water website