WSP09503

• File Number: 8278.400
• Description: Title I - Mexican Treaty
• Basin: Colorado Mainstem
• Date: 5/10/1962
• Author: CWCB - D. Hamburg
• Title: Mexican Water Treaty Negotiations Pertaining to the Colorado River
• Water Supply Pro - Doc Type: Publication

million, as you think, or maybe 1,200,000 or 1,900,000,
be more than satisfactory to Mexico?

MR. LAWSON. That is less than the offer of 1929.

SENATOR DOWNEY. I know nothing about that. I am
just comparing it with the present proposal, if you
thought that might help work out a harmonious arrange-
ment between Mexico and the Colorado River Basin states;
and of course I cannot speak for anybody but myself. You
would not be willing to undertake to say whether or not
the Government of Mexico, in lieu of taking 1,900,000
acre-feet of water, would take 600,000 acre-feet plus
the return flow, whatever that is greater or less than
900,000 acre-feet?

MR. LAWSON. We have what we believe are the best
terms that can be arrived at with Mexico. We discussed
for a week or 10 days the question of return flow. They
objected, at first, to giving us credit for any of that
return flow. But we have, we believe, with the reports
on record, a very definite idea what that return flow
will be, from various engineers, in their own opinion,
and from our own individual studies."

P. 236 to middle of P. 237:

"MR. LOWRY. The Mexican allocation of 1,500,000
acre-feet is expected to be made up as follows:

Return flow, 930,000 acre-feet; desilting water,
lOO,OOO acre-feet; unused Gila flow, 100,000 acre-feet;
making a subtotal of l,l30,OOO acre-feet.

SENATOR DOWNEY. May I interpose with a question?

THE CHAIRMAN. I think Senator Hayden was about to
ask a question.

SENATOR DOWNEY. I beg your pardon.

SENATOR HAYDEN. I was just going to say that I am
in very grave doubt about the amount of return water that
you say will be available. You have got to show me.

MR. LOWRY. I will go ahead and explain later where I
think that is coming from.

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