River Blackwater at Tongham

 

Current River Level: 0.69m, steady

Within the usual range for this location

Current level recorded at 6:30pm, Tuesday 24th May BST
(5:30pm, Tuesday 24th May GMT)

Change from previous measurement: 0.000m
(recorded at 6:15pm, Tuesday 24th May BST)

The usual range of the River Blackwater at Tongham is between 0.56m and 1.90m. It has been between these levels for 90% of the time since monitoring began.

The typical recent level of the River Blackwater at Tongham over the past 12 months has been between 0.01m and 1.20m. It has been between these levels for at least 151 days in the past year.

The highest level ever recorded at the River Blackwater at Tongham is 1.79m, reached on Friday 20th July 2007 at 11:15am.

Note that this data may not take account of recent measurements, as we wait until a level has been verified by the Environment Agency before adding it to our records.

  • Monitoring Station: Tongham
  • Watercourse: River Blackwater, Loddon
  • Nearest Town/Village: Tongham
  • Local Authority: Guildford
  • Ceremonial County: Surrey
  • Coordinates: 51°14'14"N 0°44'10"W (51.237339,-0.736289)
  • OS Grid: SU883494 (488318,149443)
  • Mapcode (Local): GBR DB0.6PS
  • Mapcode (Global): VHDY3.6539
  • Open Location Code: 9C3X67P7+WF
  • Maidenhead Locator System: IO91pf16
  • Environment Agency Location ID: 2419TH
  • Environment Agency Gauge ID: 2419TH-level-stage-i-15_min-mASD
  • Operational Area: Loddon
  • Catchment Area: Loddon and tributaries
  • UK Hydrometric Area: Thames
  • Environment Agency Region: Thames
  • Datum Type: Above Stage Datum (ASD)
  • Stage Datum: 69m AOD

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Long term graphs will work better if you rotate your fondleslab into landscape mode.

Past Week

Long Term

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.

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