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<br />N <br />00 <br />W <br />... <br /> <br />long-range salinity problem was identified early in the deliberations, <br />but the paucity of data cast doubt upon the ability to deal effectively <br />with it until more data were collected and evaluated. The seven <br />states have advocated and supported efforts to improve the data base <br />as quickly as possible. <br />During a series of meetings of the Conferees held in 1966 and 1967, <br />a frame\'lork known as "Guidelines for Formulating Water Quality <br />Standards for the Interstate Waters of the Colorado System" <br />was devel~ped. These guidelines were adopted by the State Conferees and . <br />subsequently incorporated individually by each state as part of its <br />water quality standards. The "Guidelines" contained numeric criteria <br />for many parameters other than salinity. The "Guidelines" adopted iJy <br />the states on Januarv 13, 1967, are printed in full in the Appendix B. <br />Those guidelines say in part: <br /> <br />"In order to develop practicable and I'easonable <br />quality standards for interstate ~~~~l~ in the Colorado <br />River System, full consideration must be given to the <br />numerous factors and variables connected with the control, <br />development, utilization, conservation, and protection <br />of the System's water resources. It is evident that <br />future development and utilization of the System's water <br />resources for expansion of irrigated agriculture, increases <br />in population, and industrial growth will be accompanied <br />by progressive increases in con~umptive losses of water <br />and attendant increases in concentration of dissolved <br />solids. <br /> <br />"The states served by the Colorado River System <br />recognize.that answers to important questions regarding <br />total dissolved solids, chlorides, sulfates and sodium <br />are lacking or are based on factors that are not yet <br />well-defined. In respect of this recognition the states <br />agree. that pending the development of acceptable answers <br />to enable the setting of criteria for total dissolved <br />solids, chlorides, sulfates and sodium for the Colorado <br />River System, such criteria should be stated in qualita- <br />tive terms. At the same time it is agreed that all <br />identifiable sources of water pollution will be managed <br />and controlled to the maximum degree practicable with available <br />technology in order to provide water quality suitable for <br />. present and potential future uses of the System's inter- <br />state waters." <br /> <br />:-4- <br />