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n Ilan led rr� er a �� year pf I'llrLi. i he[e continues to be no Tile noise kevEls a[t estientially u c g definitive noise "sinnature" associated wit11 IandFill traffic in that landfill traffic volumes on Austin Road are higher north of the landfill than to the south, but noise leveks are approximately equal in either direction From the landfill entrance. 2. Regulations, flans and Policies Noise regulations, plans and policies Have not cllanged substantially since certification of the Austin Road Landfill EiR (1994). San Joaquin C{aunty t5 currently in the process of adapting a new county noise ordinance. The County noise ordinance -creates the following noise perfornlance standards (dBA) at any "outdirs'rr aCivity area 5uc11 a5 rear/side yards of residences: 7 a.m. - 10 P.M. - 10 P.M. 7 a.m. Average Level (Leq) 50 45 Maximum Level (1-max) 70 65 The FEIR v,!as based upon prOjeCt cot1lpiianCe ""t.h the Cit\' of Sty}C 't0;l noise Standard which are as follows (LI BA): 7a.m. - 10p.111. - 10 p.m. 7 a.m. Average Level (Leq) 75 45 Maximum Level (Lmax) T5 65 The da1'time standards under the ne\v Cryunty ordinance are 5 dB mere stringent than the City standard. The FEIR identifies noise levels exceeding the Citi ordinance level as a potentially nes-v Counh, noise standard is 5 dB more stringent, there is no significant impact. Although the jurisdictional change associated with project implementation. Continued compliance with Mitigation Measure H-I(a) and H.1(b) will maintain a less-than-significant noise impact. 3. Traffic Data Updates Updated traffic noise studies in the BNSF Interrrtudal Facility Noise Report (1999) show a future traffic noise level of 74 dB Ldn between 2000 and 2010 at 50 feet f['om the Austin Road centerline north of the landfill entrance. Table 111.H.4 of the FEIR shows a traffic noise level of 74 dB Ldn in 2005. There have been no new data that would indicate that FEIR traffic noise estimates do not continue to be valid. Baseline conditions have not Changed, significance criteria and associated mitigation measures are still valid, and new data 0I1 traffic conditions dues not measurably alter previous conclusions reached in the FEIR. There are no neer irllpact5 nut previously adequately disclosed i]Z the FEIR. LA -26-