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Natalia Subbotnikova [EH] From: Robert McClellon [EH] Sent: Thursday, December 21, 2017 10:24 AM To: Natalia Subbotnikova [EH] Subject: FW: Letter Response to NOV - North County Landfill fyi From: DelFrate,Todd @Waterboa rds [ma ilto:Todd.Del Frate@waterboa rds.ca.gov] Sent: Thursday, December 21, 2017 9:49 AM To: Chandra, Joyesh; Bahadori,Taj Cc: Hold, Howard@Waterboards; Reno, Desi; Stone, Jim; Robert McClellon [EH] Subject: RE: Letter Response to NOV - North County Landfill Joyesh and others,for clarification purposes: staff has reviewed the monitoring record that indicates well sampling is conducted semi-annually at North County during the 11t and 3`d quarters(February and July). Water levels are required quarterly. It appears field work for water levels is conducted during February,April,July, and October. G-9 was developed in September 2017. Staff will assume that water levels for 4'Quarter(October)were collected from all site wells including G-9. With that said, staff will expect that the Annual 2017 report will contain the initial and 4th Quarter water level information recorded from all site wells including G-9. If staff's assumptions are correct, potentiometric maps for the 4th quarter will be developed with water level data collected on the same day from all wells including G- 9. Staff will also assume that initial sampling of well G-9 will be performed in February 2018 and reported in the First Semi-Annual Report in July 2018, along with all other site wells. If you would please double check the schedule above and correct any errors, staff would appreciate it. Thank you. From: Chandra,Joyesh [mailto:Jchandra@sigov.org] Sent: Wednesday, December 20, 2017 10:20 AM To: DelFrate,Todd @Waterboa rds<Todd.Del Frate@waterboards.ca.gov>; Bahadori,Taj <tbahadori@sigov.org> Cc: Hold, Howard@Waterboards<Howard.Hold @waterboards.ca.gov>; Reno, Desi <dreno@sigov.org>; Stone,Jim <istone@sigov.org>; Robert McClellon [EH] <RMcClellon@sicehd.com>;WB-RB5S-CentralValleySacramento <CentralValleySacramento@waterboards.ca.gov>; Isham,Julian <Julian.lsham@aptim.com> Subject: RE: Letter Response to NOV- North County Landfill Hello Todd, Well G-9 has not been sampled because there is no pump installed yet. This well is too deep at 190-ft to use a bailer for sampling. We have a pump on order. ETA for the pump is not known at this time, we are waiting to hear from the vendor. Thanks JOYESH CHANDRA SAN JOAQUIN COUNTY 1 PUBLIC WORKS DEPARTMENT I SOLID WASTE DIVISION PH:(209) 468-3066 1 Fax:(209) 468-3078 From: DelFrate,Todd @Waterboa rds [ma ilto:Todd.Del Frate@waterboards.ca.gov] Sent:Wednesday, December 20, 2017 10:14 AM To: Bahadori,Taj <tbahadori@sigov.org> Cc: Hold, Howard @Waterboa rds<Howard.Hold @waterboards.ca.gov>; Chandra,Joyesh<Jchandra@sjgov.org>; Reno, Desi<dreno@slgov.org>; Stone,Jim <*stone@slgov.org>; Robert McClellon [EH] <RMcClellon@sicehd.com>; WB-RB5S- 1