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<br />'. <br /> <br />. <br /> <br />. <br /> <br />1'0 <br />W <br />1',) <br />o <br /> <br />Drop 6, directly east of Brawley, have been estimated to be about 330 <br />ft3/s. This would provide adequate quantities of feed water for a <br /> <br />desalting complex. <br /> <br />Treatment facilities for the New River could be located where the <br /> <br />All-American Canal and the New River cross (see Plate No.3). <br /> <br />Wastewater would be discharged back into the river (Plan 1), evapo- <br />rated from ponds (Plan 2), or piped to the Yuma Desalting Plant <br />bypass drain (Plan 3) whi Ie product water would go into the canal. <br /> <br />An exchange agreement with the irrigation districts would be required <br /> <br />whereby diversions into the All-American Canal at its headworks <br /> <br />would be reduced by the amount of product water discharged into the <br /> <br />canal from the treatment facility. <br /> <br />The feed water would require <br /> <br />advanced primary treatment, secondary treatment, disinfection, <br /> <br />tertiary treatment, and demineralization. <br /> <br />Treatment of Alamo River water would consist primarily of desalt- <br /> <br />jng but, due to high turbidities, some primary treatment would also <br /> <br />be necessary. This facility could be located on the east bank of the <br /> <br />Alamo River near Drop 6. Wastewater would be discharged back into <br /> <br />the river (Plan 1), evaporated from ponds (Plan 2), or piped to the <br />Yuma Desalting Plant bypass drain (Plan 3) while product water would <br /> <br />be pumped up to the East Highline Canal. Plate No. 3 also shows the <br /> <br />location of this facility. <br /> <br />Plan <br /> <br />New River Facility <br /> <br />Primary treatment would consist of screens, grit chambers, and <br /> <br />coagulation and sedimentation in a clarifier. Either activated sludge <br />21 <br />