River Levels
River Levels

Groundwater Level at Ray Farm

Current River Level

47.730m

At 7:00am, Saturday 23rd November GMT

Within the usual range for this location

Falling, -0.020 from previous measurement at 7:00am, Friday 22nd November GMT


Important! The levels for this location are measured relative to sea level, not relative to the riverbed. The levels shown here do not, therefore, necessarily represent the actual depth of the water.

Nearby Flood Warning Areas

River Wye and The Hughenden Stream

No current or recent warnings.

River Wye from West Wycombe down to Bourne End

No current or recent warnings.

River Thames at Bisham village and Marlow town

No current or recent warnings.

Properties closest to the River Thames from All Saints Church, Bisham to Little Marlow

No current or recent warnings.

River Thames at Bourne End

No current or recent warnings.

Seven Day Level Chart

Long Term Level Chart

Darker blue shaded areas on long term data indicate maximum and minimum levels for the date (you may need to zoom in closer to see them).

Long term data may have gaps where the API data was not available.

Download long term data as csv

Note: CSV data will include any outlying values that have been ignored by our graphing system as probably erroneous (eg, because they are ridiculously high compared to the values either side of them). It is your responsibility to filter these out if necessary.

Important! If you are planning to retrieve the csv data automatically, you must read and understand the limitations on the data and its availability.

Location and Technical Data

  • Monitoring Station: Ray Farm
  • Watercourse: Groundwater Level
  • Nearest Town/Village: Little Marlow
  • Local Authority:
  • Ceremonial County: Buckinghamshire
  • Coordinates: 51°36'19"N 0°44'53"W (51.605305,-0.74831)
  • OS Grid: SU8678090350 (486780,190350)
  • Mapcode (Local): GBR D5J.9M8
  • Mapcode (Global): VHDW4.ZX87
  • Open Location Code: 9C3XJ742+4M
  • Maidenhead Locator System: IO91po05
  • Environment Agency Location ID: SU89_82
  • Environment Agency Gauge ID: SU89_82-level-groundwater-i-1_h-mAOD
  • River Levels Online ID: 9584
  • Water Information System ID: SU89_82
  • Catchment Area: Thames from Hurley to Teddington
  • Level Datum: Above Ordnance Datum (AOD)

Please note: Geographic coordinates may reflect the access point for the gauge, and not the precise location in the watercourse that it is taking readings from.

The usual range of the Groundwater Level at Ray Farm is between 43.41m and 52.78m. It has been between these levels for 90% of the time since monitoring began.

The typical recent level of the Groundwater Level at Ray Farm over the past 12 months has been between 48.01m and 55.29m. It has been between these levels for at least 150 days in the past year.

Nearby Monitoring Locations

There are no other monitoring stations on the Groundwater Level

There are no other monitored rivers nearby

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