Hi All!

We are seeking your input and assistance concerning estimating effective
permeability of fill materials.

To make a long "story" short(er) we are seeking an established protocol to
estimate effective permeability over a wider area than typical for a standard
falling perk. procedure - perhaps a trench version of the falling head
procedure?

We thought you might be familiar with such an already developed "trench "
procedure - or you might have developed one for use with characterization of
fill materials.

The situation is that active roots extend though the fill & have developed weak
structure within the fill - it is unsure if the effective permeability is
greater than 0.2 - or significantly less. Which would make quite a difference
as to required acreage for spray irrigation of pretreated effluent.

What we have to do is have pits excavated 4 feet deep then install and run
"perch test" procedures within the excavations - below the 5 foot "soil"
depths.

We feel that 2 or 3 trench tests would be more practical and representative
than 8 to 12 individual perk holes - not to mention
effort..

Thanking you in advance.

Jim & Dan

Voice: 330-499-1688

Fax: 330-499-1127

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