ARCHIVED REPORTS_2018 REV SITE INV WK PLAN+

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9 To: 'Palmer, Ann@Waterboards' <Ann.Palmer@waterboards.ca.gov> Cc: 'Djuth, Gerald@Waterboards' <Gerald.Djuth@waterboards.ca.gov>; 'Glenn.Young@CalRecycle.ca.gov' <Glenn.Young@CalRecycle.ca.gov>; 'Sabra.Ambrose@CalRecycle.ca.gov' <Sabra.Ambrose@CalRecycle.ca.gov>; 'Robert McClellon (rmcclellon@sjcehd.com)' <rmcclellon@sjcehd.com>; 'danap@reynoldsandbrown.com' <danap@reynoldsandbrown.com>; 'Linda Turkatte [EH]' <LTurkatte@sjcehd.com>; 'Troy Estacio' <troyestacio@buzzoates.com>; 'Cybil Bryant' <CybilBryant@buzzoates.com>; 'Jason Gray' <jasongray@buzzoates.com >; 'Rollo Stephens' <Rollo@ramcon.com>; Mick Ramos (Mick@ramcon.com) <Mick@ramcon.com>; 'Brian Millman' <bmillman@advgeoenv.com>; 'William Little' <wlittle@advgeoenv.com> Subject: RE: Former Pilkington Excavation Activities during Inclement Weather & Field Schedule All, The work will resume at the site on Tuesday March 27. Thanks, Joe Joe Brusca Brusca Associates, Inc. 1860 Sierra Gardens Drive, #332 Roseville, CA 95661 Phone (916) 677-1470 Fax (916) 677-1471 BruscaAssociates.com From: Joe Brusca <jbrusca@bruscaassociates.com> Sent: Thursday, March 22, 2018 4:42 PM To: 'Palmer, Ann@Waterboards' <Ann.Palmer@waterboards.ca.gov> Cc: 'Djuth, Gerald@Waterboards' <Gerald.Djuth@waterboards.ca.gov>; 'Glenn.Young@CalRecycle.ca.gov' <Glenn.Young@CalRecycle.ca.gov>; 'Sabra.Ambrose@CalRecycle.ca.gov' <Sabra.Ambrose@CalRecycle.ca.gov>; 'Robert McClellon (rmcclellon@sjcehd.com)' <rmcclellon@sjcehd.com>; 'danap@reynoldsandbrown.com' <danap@reynoldsandbrown.com>; 'Linda Turkatte [EH]' <LTurkatte@sjcehd.com>; 'Troy Estacio' <troyestacio@buzzoates.com>; 'Cybil Bryant' <CybilBryant@buzzoates.com>; 'Jason Gray' <jasongray@buzzoates.com >; 'Rollo Stephens' <Rollo@ramcon.com>; Mick Ramos (Mick@ramcon.com) <Mick@ramcon.com>; 'Brian Millman' <bmillman@advgeoenv.com>; 'William Little' <wlittle@advgeoenv.com> Subject: RE: Former Pilkington Excavation Activities during Inclement Weather & Field Schedule Hello Ann, The work at the site has been shut down since Tuesday due to the rains. I have kept in close contact with the contractor (Ramcon Engineering and Environmental Contracting) and based on our discussions this afternoon they don’t plan to resume work onsite until next week. The site conditions will be evaluated this weekend, and it is expected that the site should be dry enough to proceed by Monday or Tuesday. I will notify everyone this weekend, or on Monday at the latest, as to the actual schedule for starting back up. As far as the field schedule, once the work resumes Ramcon will be working every weekday, usually 7am to 3pm (weather permitting). At this time, the weather forecast for all of next week looks dry. So far the work has been limited to removal and stockpiling of cap soils. Cap soils excavation commenced along the easterly margin of the cap, and will proceed to the west as the work ensues. The maximum depth of cap soil excavation so far has been about two feet, and the underlying wastes generally have not been exposed at that level (although test excavations via shovel within excavated areas revealed the anticipated waste layer a few inches or more below that level). As a wet weather mitigation measure, it was decided to leave the wastes in place and covered with some cap soil in advance of the rains that we have experienced over the last few days. Attached is a photo taken on Monday showing the easterly portion of the cap area where cap soils had been removed to a depth of about two feet; as shown, wastes had not been encountered/engaged at that level, and thus have been protected from the rains. The orange marking in