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<br />. <br /> <br />. <br /> <br />III. CONCLUSIONS AND REcnl~,~SNDATIONS <br /> <br />The more im~ortant plWSC2~ of hJ'droloo;ic analysis requ~r:Lng <br />coordination have been discussed in Section I, HYDROLOGIC COORDINATION <br />REQUIRED - FACTS AND ANALYSES TI!,;,tiEOF, covering assignments (a) and <br />(b), There is outlined under Section II, PRES":NT STATUS OF RESEARCH <br />PROGRANS UNDER WAY TO DETERMINE EFFECT OF' Ui'STREAM RESSRVOIRS UPON <br />DOWNSTREAM WATER YIELD, findings with respect to assignment (c). <br /> <br />a. Conclusions <br /> <br />After considerable discussion and deliboration it was concluded <br />that some of these phases of hydrologic analysis can be achieved by co- <br />ordinated field-level studies. Other phases, however, have a history of <br />unattained coordination which in large part may be ascribed to different <br />policies and planning procedures established by higher authority in the <br />several Federal investigating agencies, and consequently, are not <br />susceptible to resolution at field level. In view of the foregoing, <br />your committee has reached the following conclusions: <br /> <br />1. That hydrolo'!,ic coordination with res"ect to items a, <br />and n, discussed in Section I, C2,n be resolved at loeal level. <br />subject titles Df the forecioing items are: <br /> <br />b, c, k, <br />The <br /> <br />a. Collection of and a!;resment on factual dat.a by watersheds <br />with res]lect to the TJl1ysic,31 f;oct.c,r:: "hi~h affect the rate, <br />amount 111ld quality of runoff. <br /> <br />b. Det2rmine the areal SJurce of' runoff within the watershed <br />and establish the runoff characteristics. <br /> <br />c. Establish a critical dry ]leriod or p9riods for all sec- <br />tions of a watershed. <br /> <br />k. Establish th8 relationshins of water laws and rights to <br />water use and control develonment in hydrologic analyses. <br /> <br />n. Establish operati.onal procedures both for oro.jects ex- <br />isting and anticipated for the future to Lest serve all <br />useful purpOses. <br /> <br />2. That hydrologic coordination with respect to items d, e, f, and <br />g must be rcsolvgd at ',o/ashington level. The subject titles of the fore- <br />going items are: <br /> <br />d. Establish the flood histor,f of th8 watershed, including <br />magnitude and frequency of floods throu~lout the watershed, <br />and the origin and characteristics of the floods. <br /> <br />c. Establish unifom hydrologic factors for the watershed, <br />such as infiHration indices, times of runoff corcontr(ltion, <br />travel times, channel losses, transportation losses, and <br />evaporat.ion, <br /> <br />- Ih - <br />