Laserfiche WebLink
h KVt20NMCNTAL IMrAGT mtrowr AUUU NUUH Ac4d T40NO AnNON 0.flvte Cl+rYOJY UY, <br />"BEYTttM UCN l0li 9AN'rA."A. CALIFORNIA <br />2.9. <br />HYDROLOGY AND NVATER..QUALITY <br />Mould the.projeefz- <br />vrw n[A2 ryn FuhrtamiM <br />S[giancaal severe. 'Change Gam <br />[impact Impm Prevloue Aualvsls <br />(a) <br />Violate any water quality standards or waste dischaTe <br />❑ <br />requirements? <br />❑ <br />(b) <br />Substantially. dep[CIO grouadwalcr supplies or interfcrc <br />substantially with groundwater recharge such that there would be <br />a net deficit in aquitir volume or a lowering of the local <br />groundwater table level (e.g., the production rate of pro-cxfstiag <br />El❑ <br />nearby wells would drop in level which would not support <br />existing land uses or planned uses for which pcnnits have been <br />anlctll? ' <br />(c) <br />Substantially.alter the existing drainage pattern of the site or area,,, <br />including through the alteration bf thecourse of a stream or river, <br />or substantially increase the rate oramouraofSurface runoff <br />❑ ❑ <br />above pry- development condition rin..ri manner which would result <br />in flooding i'on• orotysitc? <br />.(d) <br />Create or contribute nntorr water which world excecd the <br />capacity of existing or planned storm waterdrainage systems or <br />❑ ❑ <br />rovidc substantial: additional sources .or oltutcd runoff?? <br />- <br />(e) <br />_Place housing within a 100 -year lined hazard area as mapped on a <br />federal Flocxl Hazard Boundary• nr Flood Insumrice Rae Map lir <br />❑ ❑ <br />other flood hazardddinratiun rna -? <br />,(f) <br />Place within a l00 -year flood hazard area structureswhich would <br />F-1 Elim <br />de or redirect flood Flows? <br />Analysis of Project Changes: <br />a) Pollutants of concern during construction of the Revised Project include sediments, trash, <br />petroleum products, concrete waste (dry and we(), sanitary waste, and chemicals. Each of these <br />pollutants on its own or in combination with other pollutants can have a detrimental effect on <br />water quality. During construction activities, excavated soil would be exposed, and there would <br />be an increased potential for soil erosion and sedimentation compared. to existing conditions, In <br />Addition, chemicals, liquid products, peholeunt.products (e.g., paints, solvents, and filets), and <br />concrete -related waste ivay be spilled or leaked and have the potential to.be transported via storm <br />dater runoff into receiving waters (i.e., the Los Angeles River and ultimately the Pacific Ocean). <br />During construction of the church and residences, the total disturbed soil area would be <br />approximately 14.5 acres. Because construction of the Revised Project would disturb greater than <br />I 'acre of soil, the Project is subject to the requirements of the State -Neater Resources Control <br />Board's, (SIVRCB's) National Pollutant Discharge Elimination System (NPDES) General Permit <br />for$tomi Water Discharges Associated with Construction and Land Disturbance Activities <br />(Order No. 2009-0009-DWQ, NPDES No. CAS000002, as amended by Orders No.2010-0014- <br />DNQand 201270006-DWQ) (Construction General Permit). <br />-Ihe Revised Project would be required to comply with Mitigation Measures GEC -S and GEo-6 <br />from the 6ertifiaii'EIR, which requirecompliance with the Construction General I'ertnit and <br />implementation of Erosion Control BMPs. `17he Construction General Permit requires preparation <br />f:G101(OPA,ktnidurnlAJacndum.ducx .05!05![7. <br />75B-92 <br />2-43 <br />