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E:u.uNu G. 13—.,Jk. <br /> RECEIVED rZ <br /> Water Boards APR 2 3 2012 <br /> fr <br /> Central Valley Regional Water Quality Control Boa RONMENTALH <br /> PERMIT/SERVICES <br /> Linda Novick 19 April 2012 <br /> Tulare County Compost Biomass, Inc. <br /> Valley Organics <br /> 916 Frewert Road <br /> Lathrop, CA 95330 <br /> REVIEW OF REPORT OF WASTE DISCHARGE, TULARE COUNTY COMPOST BIOMASS, INC., <br /> SAN JOAQUIN COUNTY <br /> Central Valley Water Board staff has reviewed the 3 April 2012 Report of Waste Discharge and <br /> Report of Composting Site Information for the Tulare County Compost Biomass, Inc. facility in San <br /> Joaquin County. Our review focused on the water quality aspects of the report. <br /> On page 11, the report states that the quality of the groundwater in the vicinity of the site is <br /> "historically poor" and that it is expected that the quality of water constituting any leachate or potential <br /> leachate from the composting operation will be of higher quality. The report states that the facility will <br /> continue to operate under existing Monitoring and Reporting Program (MRP) No. R5-2008-0811 that <br /> requires sampling of the retention pond. <br /> The report does not contain any data to demonstrate that the quality of the leachate is or will be <br /> higher than the natural background groundwater quality. We require this data to assess the potential <br /> groundwater impacts at the site. The data from the retention pond that has been collected under the <br /> MRP must be compared with the background groundwater monitoring data to demonstrate that the <br /> natural background groundwater concentrations are of worse quality than the leachate as stated in the <br /> report. The report must include all available data and must demonstrate that the statement on <br /> page 11 of the report is true. <br /> Also, the State Water Resources Control Board is currently working on a draft statewide order to <br /> regulate composting facilities. We anticipate that the Valley Organics site will be able to obtain <br /> coverage under that order once it has been finalized. Depending on the final requirements of the <br /> statewide order, this site may or may not be required to install groundwater monitoring wells and <br /> conduct groundwater monitoring. In any case, we anticipate that this site will be able to begin <br /> operations as proposed and to enroll under the statewide order once it is finalized and comply with its <br /> requirements. However, prior to beginning the proposed operations, the information required in this <br /> letter regarding the leachate and groundwater data must be submitted so we can assess the potential <br /> need for an individual order for the site to approve the proposed project if the statement on page 11 <br /> cannot be demonstrated. <br /> If you hav an ues io s,,please 11 mea (916) 464-4622. <br /> t, -P e ca <br /> WILLIAM BRA TAIN, P.E. <br /> Water Resources Control Engineer <br /> Title 27 Permitting and Mining <br /> cc: Robert McClellon, San Joaquin county Environmental Health Department, Stockton <br /> KAR- E. —ONGLEY SCE), P.E., CHAIR I PAMELA C. CREEDON P.E., BCEE, EXECUTIVE OFFICER <br /> 11620 Sur Center Drive 11200 Rancrio Cordova CA 95670 , www.watorbozircs.ca.gov/centraival;ey <br />