PC 11/09/77 - Laserfiche WebLink

potential environmental problems. A drat resolution had been prepared by the City Attorneys office for the Commissions use. The resolution was read aloud for the benefit of the persons in the audience. The Public Hearing was opened on the environmental assessment portion. Mr. Bob Bradford, Project Manager for LAVWMA, stood ready to answer any questions. He stated that LAVWMA and its consultants are in agreement with the tenor and intent of the staff report. Commissioner Doherty expressed some concerns regarding safety, environ- mental aesthetics and possible odor problems. He noted that these concerns were covered under the draft resolution, and Condition #13 added to the conditional use permit applications would take care of the odor problem. He had a question regarding the project, such as, would the odor controls imposed be done so as to be sufficiently effective; aesthetic-wise, he felt that great care should be used in screening the structures from view; also, he had concerns regarding possibility of earthquakes and their impact on such a facility. Commissioner Jamieson shared these concerns. Mr. Robert Harding, Project Director from the consulting firm of CH2M Hill, indicated that the system is unlike the existing sewage treatment plants in that it is an export system of treated effluent. The water in the ponds would be secondary treated effluent. At the junction structure, both Livermore and V.C.S.D. will be required by agreement with LAVWMA to main- tain a chlorine residual of one part per million. This will be monitored continually at the receiving end. The export pump station has capacity to inject additional chlorine north of the junction structure and over Boehmer Summit, including a wash down system of the regulating reservoirs. Only one pond will be used at a time, the other being held in reserve. He then explained how the wash down system would work. He concluded his comments by stating that the proposal before them has been determined to be the cost-effective means to resolve this long standing problem. In response to Commissions questions Mr. Harding noted: The average amount of time the effluent would be in the reservoirs would be less than 24 hours. If there is a breakdown in the pump system, depending on when this happens, the regulating reservoirs are sized and (based upon flow when the system is connected, about 18 months from now) there would be about a one-day reserve. There is a 1,000,000 gallon peaking pond in Livermore. There is additional ponding capacity available at VCSD. If everything fails, there will be discharge into the Alamo Canal and in that case, a report would need to be filed with the Regional Board. He also noted that the ponds would not be covered. Odor could be taken care of through oxidation. The chlorine dosing apparatus will oxidize this to the greatest part. Mr. Harding stated that the plans have been reviewed by the Regional Board. -2-