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A recently published report by a UC Davis researcher,referenced as the Harter Report,discusses the question of"how much nitrate loading to groundwater is acceptable." If recharge water contains a nitrate concentration at the MCL,the annual"safe"nitrate loading rate is 31 Ibs_V/ac/yr. As noted in the CritesiTchobanoglous calculations found on Page 10,the predicted nitrate-nitrogen recharge concentration in the effluent is 29 lbs N/ac/yr and therefore under the theoretical "safe"concentration.And considering the effluent recharge is predicted at 80%,of the-MQk,the concentration is further reduced: 80%x 29 lbs N/ac/yr=23 lbs N/ac/yr,or a 26%reduction below the" he"safe"concentration. All influent tines coming from the new buildings(Darbar and Langar)must be as high in elevation as possible to maintain the highest elevation of the septic tanks. Influent lines must come through the footings of the buildings. The building designer,contractor,plumber and septic system Installer all must be made aware of this. Because of the high water table,the septic tanks must be installed as high in elevation as possible,with the bottom of the tanks at approximately seven feet below existing grade. If groundwater is encountered during tank emplacement, straps Old deadmen must be used to counteract _ buoyancy. As referenced,only two-thirds of the tank contents shout8 ever be pumped out. Influent and effluent lines should not cross fresh water or electrical lines. If crossing cannot be avoided,the wastewater lines should cross under fresh water lines and/or be adequately encased per EHD guidelines. The Sikh Temple facility hosts large events approximately five times per year. For these events,portable chemical toilets must be brought on-site since it is conceivable that the new wastewater management system -will be taxed beyond its capacity during these events. The on-site domestic well must meet the conditions to operate as a public well,as imposed by the EHD. Mr. Singh as the project manager will be managing this portion of the project. MAINTENANCE A maintenance program must be established for the entire wastewater disposal system. As referenced, predicting septic tank pump-out intervals is impossible due to the number of unknowns. It is anticipated to have the tank pumped every five years,or a pump-out interval based upon analyzing the scum and sludge thicknesses after two years of operation. The second highly important maintenance issue will be the washing off of all septic tank filters,preferably after direct observation of the system after three months of operation. Clean-outs must be installed on the ABS influent tightline from all buildings every 100 ft in accordance with EHD requirements. The location of the clean-outs can be determined by the septic system installer based upon what is encountered in the field during construction. Clear-outs also come installed at the distal ends of each lateral as noted on the Quanics, Inc. schematics. By using a long"bottle-brush"arrangement,the interiors of the laterals can be cleaned of potential scum and slime build-up. ,A water softener shouts not bebestalled since there is a high potential for thelay soil to c "bind-un"from the sodium in water softener charge. 15