ARCHIVED REPORTS_1993_1 - Laserfiche WebLink

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TABLE 3.1 SUMMARY TABLE OF SIGNIFICANT IMPACTS AND MITIGATION MEASURES ... .. . .......... .... ..... .................................................... ........... . .....1.. 1....1. ........... ..I. ......... ..1. ..1. ........... ......................-...... .-.. .1 ............. ....-......... ..... . .............................. ..... .......... ... .. ............... ........ ..... .. PACT.B...E...i ........WILL I.M... :L.E... S .................. ..................... ..... ..................... POTENTIAU Y. SIGNIFICANT IMPACTS; .-.. .. ............... .. ................... - 3GESTED MITIGATION; MEASURES iHAhl:SIGNIFICANT? Degradation or Impairment of groundwater resources may result Mitigation measures detailed above for mitigating surface water Yes from contamination entering the groundwater system over the Impacts will also provide mitigation for groundwater Impacts. life of the project as a result of the lack or failure of Impervious surfaces and liners in working areas. Contamination of a public Personnel working with the "load screening program" and on water supply could occur. the "tipping floor" shall have 40 hours of OSHA training on spill containment, personnal protective equipment, and the handling of recyclable household hazardous materials. An approved hazardous materials storage area shall be provided at the facility for storage of hazardous wastes discovered as a result of load screening and processing. Project operations may result In an adverse Impact to artificial Erosion control measures shall be Implemented as detailed Yes water carrying structures, In particular the Banta-Carbona above to minimize soil loss and sedimentation during Irrigation Canal. construction. Unpaved roads and working surfaces shall be watered frequently to minimize dust. Utter shall be picked up regularly on the site, on surrounding properties, and along the approach to the facility. Accidental overflow of flood waters from Corral Hollow Creek The proponent should construct berms or take other measures Yes into the reclaimed gravel pit could create a safety hazard, or to prevent a 100 -year, 24-hour flood in Corral Hollow Creek cause substantial damage to the operations, or result in the from accidently overflowing Into the pit. transport of contaminants from the project site to downstream areas or into groundwater. Although unlikely to occur, runoff of An acceptable alternative to the construction of berms would be that the project applicant provide an analysis of Corral contaminants from the project site into Corral Hollow Creek may Hollow Creek for the 100 -year 24-hour storm event to adversely impact aquatic habitat and populations of existing determine the likelihood of overtopping and diverting into the species, or runoff may impair other beneficial uses downstream. pit. Should overtopping prove to be a likely event, the project applicant would then be required to submit to the reviewing agency an engineered plan for prevention of said overtopping. Acceptable mitigations would include the construction of berms or levees or the widening and deepening of the channel adjacent to the project site. ER -93-1 -24- (9-27-93)