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<br />. .A t:th~ ~~esentt'U;e_the're are t:":o ~eather modi fica- ... .. .... . . .......
<br />.::tion projects in Colorado, one is known as the. . .......
<br />.'Bureau .0fReclamationColorado Pilot Project for .the
<br />upper part ..of the SanJuan River Basin, and the. . .'.
<br />. other ..is on: going 'research.near Climax, Colorado;
<br />The San Juan River Basin target is over 120 miles.
<br />south~southeast of the Grand Mesa Project. The gen-
<br />.erator .at Montrose is .the nearest to the San Juan
<br />'River Basin Project and the distance is about 90
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<br />.. .miles.: :Trhis. particular. generator is used only ~hen
<br />,the winds1at the _50 to _100C is from the south. . We
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<br />.aidin determining theforecast.of the .amount..
<br />.of .. precipitation' that 'should be expected natural- .'.
<br />ly i.. . Duration; . rate of 'accumulation,. .and. present
<br />conditions are also used in making the decision. "
<br />:.to. operate. a particular storm system or.: to suspend
<br />opera tions;."
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<br />...In'Jestigations" h~ve been mad~in:" rega~d'to'sii~er
<br />.iodid~ introduced into the atmosphere being
<br />, hazar.dous to health. ,.The following is a.quote
<br />", of the full ABSTRACT .from an article taken .from
<br />',the' Journal of AppliedMeteorology, Vol', II,
<br />/December .1972::'
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<br />--'.' ',; :;~~"'" . .' '-.-' ", ' . .., . <
<br />.. . :IIEstimatesbased. on information inmed~cal.and.
<br />...,meteorological.literature indicate that :silver
<br />iodide in the air and in precipitation does ....
<br />:.not pose a danger .to people in .thetarget area;.
<br />.'Although .theconcentration of AgI near the gen-.
<br />...erator is much . larger, interviews with operators..
<br />.","who have been seeding on a large scale for many,'..,..'
<br />years fail to .disclose any instances of ill
<br />effects from AgIo II A copy of full article is,
<br />. attached. .
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<br />Based on the'experience of WRDC inthis',area;
<br />there will be no significant effects on the
<br />... environment because. of cloud seeding.
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