Private water supply
Planning Practice Guidance: Water Supply
Replacement Unitary Development Plan - Policies
NE4, EP14, H9
|Type of application|
|Geographic locations where this information is required||Where relevant.|
|What information is required|
The details to be submitted must identify:-
the location and nature of the source of the water supply to be used (eg borehole, well, spring)
any other uses already made of the supply
the location of septic tanks within 50m of the supply source and the supply distribution pipework
If an existing private water supply is to be used then information about the quantity of water available its existing use and proposed use is required (details of how to provide this information can been seen under Further Information)
|Where to look for further assistance||If, after reading the 'Further Information' you are still unsure about the information to submit please contact the Council’s Environmental Health Officer on 01422 392373 / 392307 / 392311.|
Adequate water must available to serve the proposed development. Calderdale Maps on-line shows the approximate location of the public ‘mains’ water supply network.
In order to validate your planning application you must submit written details of the private water supply for ‘domestic purposes’ for this residential development or place of work to the local planning authority. ‘Domestic Purposes’ includes
human consumption and cooking purposes
sanitation and laundry
the washing of vehicles and the watering of gardens
If an existing private water supply is to be used then information about the quantity of water available is required:-
- Measure the time taken (in seconds) to fill a bucket of known capacity from an overflow or similar of the supply to be used, but not from a tap. Ideally perform the test during sustained dry weather, close to the site of the proposed development. Repeat the test several times and take an average of the results. Calculate the water available in 86400 seconds (ie the number of seconds in 24 hours)
E.g. it takes an average of 90 seconds to fill a 10 litre bucket,
Total water available = 86400 seconds ÷90 seconds x 10 litres = 9600 litres / day
- Account for existing uses being made of the water (refer to Table 1 of BS6700: 2006 but allow 200 litres of water per head per day for a residential development). Assume maximum occupancy: 2 persons per double bedroom, 1 per single bedroom (even if used as a ‘study’).
E.g. 6 houses are already served by the supply. Each has 2 double bedrooms and 1 single bedroom. The existing water demand is 6 houses x 5 bed spaces x 200 litres per head = 6000 litres/ day. In this example there are 3600 litres of unused water a day to support further development.
Commercial and agricultural uses of water may draw higher levels of water than are featured in BS6700.
- Account for the extra use of that water supply proposed by the development, in accordance with Table 1 of BS 6700:2006. Allow for a minimum of 200 litres of water per head per day for a residential development. Always assume maximum occupancy.
E.g. a new house will have 1 double and 2 single bedrooms and a study the size of a single bedroom. 5 bed spaces x 200 litres each = 1000 litres. In this example there is sufficient water to meet that demand out of the 2600 litres of unused water available.