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Project Name: Mountain House Neighborhood'F"'Project Initial Studv Consent Agreement for Mitigation Measures program. The monitored level of service shall be consistent with the procedures established in the Highway Capacity manual. LOS D is the adopted threshold for the acceptable operation of the interchange. In the event that project related traffic causes the levels of service to reach the LOS D threshold before reaching LOS E, issuance of building permits shall cease until necessary improvements to maintain the level of service are implemented. TRAFFIC-2: A 250 to 500 foot four-lane section, as adequate to accommodate traffic volumes, shall be provided on both the northbound and southbound approaches of Mountain House Parkway at Grant Line Road and Mascot Boulevard. The implementation of these improvements shall be evaluated annually as part of the project's annual monitoring program. The monitored levels of service shall be consistent with the procedures for capacity analysis as established in the Highway Capacity Manual. However, once the intersection level of service reaches the LOS D threshold before reaching LOS E, these improvements shall be constructed prior to the issuance of any additional residential building permits. TRAFFIC-3: The intersection of Mascot Boulevard and Mountain House Parkway shall be improved to provide two northbound, left-turn lanes on Mountain House Parkway. In addition, the free-right turn recommended on the eastbound approach shall be constructed such that the traffic using this lane merges into southbound Mountain House Parkway traffic into a separate travel lane. Therefore, a southbound acceleration lane located south of Mascot Boulevard shall be provided to insure a smooth and unrestricted transition onto Mountain House Parkway. To accommodate the northbound dual left-turn lanes, Mascot Boulevard shall be constructed as a four-lane facility between Mountain House Parkway and the fust residential access point to the west of DeAnza Boulevard. TRAFFIC-4: Tracy Boulevard(north of Lammers Road)shall be widened, as necessary, from 2 to 4 travel lanes to accommodate cumulative, regional traffic volume increases. The County shall initiate discussion and coordinate with the City of Tracy regarding the improvements. This widening project shall be added to the San Joaquin County TIMF once improvement designs and cost estimates are completed, then development within Mountain House shall pay its fair share of the improvements through participation in the TIMF by paying TIMF fees at issuance of building permits. TRAFFIC-5: One of the following options shall be implemented for New Grant Line Road east of Byron Road. Option 1: Widen New Grant Line Road from 4 to 6 lanes, as neccessary, to accommodate cumulative, regional traffic volume increases. The County shall initiate discussion and coordinate with the City of Tracy regarding financing the improvements should the City of Tracy adopt the widening project in the future. Development within Mountain House will then pay its fair share of the improvements through participation in any County financing, such as the TIMF, by paying any such fees at issuance of building permits. Option 2: Change the level of service standard for the segment similar to Mitigation Measure M4.125-(e) in the Master Plan EIR. This mitigation allows the use of LOS D rather than LOS C as the threshold of significance. Noise NOISE-1: Soundwalls shall be included at the locations shown in Figure 5 to reduce the outdoor noise level to an Ldn of 60 dB unless the planning authorities deem that the maximum wall height is to be 7 feet. If this is the case, the residents shall be notified that the outdoor sound level has not been mitigated to the C:Uo1W\SJCUnitia1 StadyWPPENDIX Bf=Ldm B-2