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ARROYO LAGO RESIDENTIAL PROJECT ADDENDUM FCS 157 Https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480036/Addendum/21480036 Arroyo Lago Residential Project Addendum.docx noise and would avoid operational noise associated with mechanical pumping infrastructure. Consistent with the impact conclusions in the Prior FEIR, this option would not introduce new stationary noise sources or increase traffic noise levels, and all applicable noise-related mitigation measures from the Prior FEIR would continue to apply. Accordingly, noise impacts would remain less than significant and consistent with the conclusions of the Prior FEIR. Mitigation Measures MM NOI-1 Prior to issuance of construction permits, the following language shall be included, verbatim, in the general notes section of all the civil plan construction documents. • The construction contractor shall ensure that all equipment driven by internal combustion engines shall be equipped with mufflers, which are in good condition and appropriate for the equipment. • The construction contractor shall ensure that unnecessary idling of internal combustion engines (i.e., idling in excess of 5 minutes) is prohibited. • The construction contractor shall utilize “quiet” models of air compressors and other stationary noise sources where technology exists. • At all times during project grading and construction, the construction contractor shall ensure that stationary noise-generating equipment shall be located as far as practicable from sensitive receptors and placed so that emitted noise is directed away from adjacent residences. • The construction contractor shall ensure that the construction staging areas shall be located to create the greatest feasible distance between the staging area and noise-sensitive receptors nearest the project site. • The construction contractor shall ensure that all on-site construction activities, including the operation of any tools or equipment used in construction, drilling, repair, alteration, grading, or demolition work, are limited to between the hours of 7:00 a.m. to 7:00 p.m. on any day except Saturday or Sunday, or 8:00 a.m. to 5:00 p.m. on Saturday or Sunday. Implementing Measure for MM NOI-1 Upon annexation of the proposed project into the City of Pleasanton (City) and prior to issuance of construction permits, the language identified in MM NOI-1 shall be included in the general notes section of all civil plan construction documents, except that the last bullet point shall be replaced with the following, to reflect the City’s allowed construction hours: • “The construction contractor shall ensure that all on-site construction activities, including the operation of any tools or equipment used in construction, drilling, repair, alteration, grading, or demolition work, are limited to between the hours of 8:00 a.m. and 8:00 p.m. daily, and between 10:00 a.m. and 6:00 p.m. on Sunday and holidays” to reflect the City’s allowed construction hours.”