BOARD02267

• Board Meeting Date: 5/27/1968
• Description: Agenda or Table of Contents, Minutes, Memos
• Board Meetings - Doc Type: Meeting

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DR. EVANS:

MR. GOODWIN:

DR. DANIELSON:

MR. GOODWIN:

DR. DANIELSON:

MR. GOODWIN:

DR. DANIELSON:

Thank you."

"Perhaps there will be some questions. Bob."

"I would like t.o either make an observation
or ask if you have had this experience. I have
a very peculiar experience in my yard at home.
I have a place where the soil is good. heavy
soil. it's not clay, it's probably four to
four and a half feet deep and I absolutely
can't run a four inch pipe full of water at
the head of it and ever get it to the bottom.
I have to keep moving it down and I am only
trying to run it about 250 feet. Right opposite
this. I have about the same area and it's
gravel. I put possibly an inch of good soil on
top and I can irrigate that and I'll get a
runoff in two or three hours with the same head
of water in this probably a little larger area.
Now why don't I ever seem to be able to do
anything with this heavy soil area? In other
words, you just can't fill it."

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"You are putting me on the spot!"

"Well. have you had any experience like
that? It's unique."

"It's kind of like calling up the doctor
and saying I got an ache. what's the matter
with me. without being able to see it. How-
ever. the grass is on both areas. is that
right?"

"Yes. II

"All I can really say at the moment is
that we know that the intake of water into
the soil is influenced tremendously at the
very surface. I have seen demonstrations
where you take sand, pure white, washed sand.
and run water down through it. Eventually the
percolation rate decreases. Stir up the top
of that sand. half of an inch of that sand. and
immediately it increases again. We get orienta-
tion there at the surface that affects this

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