Heavy rain over the coming days has led the Met Office to issue weather warnings - sparking fears of renewed flooding along the River Mole and elsewhere.
The area is forecast to have heavy rain on Thursday morning, Friday night and Sunday afternoon.
The Met Office has issued a yellow rain warning calling on Surrey residents to be aware of the threat between midnight on Thursday night and midnight on Friday night, and another warning for wet and very windy weather on Sunday.
No flood alerts are currently in force for the river at Leatherhead, but the town has been flooded three times in the past month.
Last Friday the Environment Agency (EA) did not issue a flood warning for Leatherhead until 4.50pm by which time it was already starting to flood.
Responding to complaints from angry flood victims demanding to know why they had not been given more warning, the EA said it could only issue a flood warning when the flooding of properties was imminent and in this case its data indicated properties would flood after 6.17pm.
A flood alert - warning there was a risk of flooding to low lying areas - had been issued for the area early that morning.
An EA spokeswoman said: "On this occasion, the flood warning in Leatherhead was issued as soon as the rain forecast and levels on the River Mole reached a point where it indicated that the threshold for property flooding was met."
The first Met Office yellow warning says: "Bands of rain are expected to move eastwards across south and southwest England during Friday.
"Rainfall accumulations of 10 to 20 mm are expected over most parts, with 30 mm or more possible over some areas, especially windward coasts and hills.
"With the ground saturated over much of the region, the public should be aware of the risk of further local flooding and associated disruption."
The second yellow warning for Sunday says: "Heavy rain and gales are likely to affect most areas for a time with further flooding possible in prone areas, particularly southern parts of England and Wales where the ground remains saturated following earlier rain.
"The public should be aware of the possible disruption to transport and the continuing risk of flooding in prone areas."
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