I can confirm that effects/water_warp.vmt is in the gamefiles.
There also exist _well and _2fort variants. These are however screenoverlays and can not be used in a map properly.
Code:
"Refract"
{
"%keywords" "tf"
"$refractamount" ".05"
"$refracttint" "{205 225 255}"
"$refractblur" "1"
"$scale" "[1 1]"
"$bumpmap" "dev/water_dudv"
"$normalmap" "water/tfwater001_normal"
"$bumpframe" "0"
"Proxies"
{
"AnimatedTexture"
{
"animatedtexturevar" "$normalmap"
"animatedtextureframenumvar" "$bumpframe"
"animatedtextureframerate" 30.00
}
"TextureScroll"
{
"texturescrollvar" "$bumptransform"
"texturescrollrate" .1
"texturescrollangle" 45.00
}
}
}