Useful Information

Whitewater Valley Preservation Society logo

Official Agencies

Report an environmental incident

Please report any environmental incident affecting the River Whitewater to the  Environment Agency incident hotline
Telephone: 0800 80 70 60
24-hour service

Report a flooding incident

Please report any leaks, blockages or overflowing sewers and drains immediately by contacting Thames Water on 0800 316 9800 and press option 2, then 2  again.

Please report any flooding incidents later by completing Thames Water’s sewer flooding questionnaire.

Partner Organisations

CPRE Hampshire is the Campaign to Protect Rural England’s activities in Hampshire, including updates from North East Hampshire.

Greywell Flyfishers – Chalkstream Fly Fishing on the River Whitewater in North East Hampshire.

Hampshire and Isle of Wight Wildlife Trust manages Sites of Special Scientific Interest (SSSIs) along the Whitewater Valley, including Greywell Fens, Warnborough Greens and Hook Common and Bartley Heath woodlands.

The Hartley Wintney Preservation Society aims to protect and enhance the character and appearance of Hartley Wintney, especially Conservation Areas, Listed Buildings and Common Land.

The Loddon Catchment Partnership‘s vision is for a healthy, functioning and wildlife rich aquatic environment within the River Loddon Catchment, valued and cared for by everyone now and in the future. The Loddon catchment covers an area of 680 square kilometres across the counties of Hampshire, Berkshire and Surrey.  The River Loddon arises from chalk fed springs and flows north easterly over chalk and clay before joining the Thames near Wargrave. The three main tributaries are the River Whitewater, River Hart and River Blackwater.

The Loddon Fisheries & Conservation Consultative is a voluntary group made up of individuals, clubs, businesses and organisations. Its aim is to represent and coordinate interests in fisheries, angling and conservation in the Loddon catchment.

The Rural Hart Association is a group of local organisations, working together to challenge the Hart District Council proposed New Settlement Plan as part of its emerging Local Plan.

Save Our Landscape is the Long Sutton Solar Farm Action Group set up with the vision that renewable energy shouldn’t cost the rural landscape of Hampshire.

SOLVE: Save Our Loddon Environment aims to protect our already stretched environment from further development in the Loddon Valley.  The River Whitewater is part of the Loddon catchment.

We Heart Hart is the campaign to change the Hart Local Plan to focus on brownfield development and keep our fields green.

Local Councils

Greywell village and Parish Council – home to the source of the River Whitewater.

Odiham Parish Council – encompassing North Warnborough, through which the River Whitewater flows.

Hook Parish Council – Hook village is bounded on the east side by the picturesque valley of the River Whitewater.

Hartley Wintney Parish Council – of which the River Whitewater forms the western boundary.

Rotherwick Parish Council – of which the River Whitewater forms the eastern boundary.

Mattingley Parish Council – with its diverse rural landscapes including the water meadows of the River Whitewater.

Heckfield Parish Council – through which the River Whitewater flows before its confluence with the River Blackwater near Swallowfield.

Hart District Council – the local planning authority, which encompasses the above parishes. Report incidents such as fly tipping to the District Council.

Hampshire County Council – responsible for roads and highways.

Walks in the Whitewater Valley

West Green, Murrell Green and the Whitewater Valley Walk – published by the Hartley Wintney Preservation Society (3.5 – 4 miles, 1.5 – 2 hours)

North Warnborough, Butter Wood, Greywell and Basingstoke Canal (3 miles, 1.5 – 2 hours)

Leather Bottle Mattingley and Whitewater Valley (3 miles, 1.5 – 2 hours)


The Loddon Catchment Biodiversity Strategy, published in 2003 by Hampshire Isle of Wight Wildlife Trust, details a biodiversity strategy for the Whitewater Valley and Basingstoke Canal on pages 33-40.

Journey Down The Whitewater

The Whitewater Valley Preservation Society for North Hampshire published “Journey Down The Whitewater” to inform members and the public better about our beautiful valley.  Written and beautifully illustrated by Anne Pitcher, first published in 1982.

Journey Down the Whitewater by The Whitewater Preservation Society book cover image