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Email_Ron-to-City_Dewatering.pdf Lambert, Jennifer From:McConnell, Jeanie Sent:Friday, March 23, 2012 9:21 AM To: Lambert, Jennifer Subject:FW: 9921 Water St. Demo 2011-0652 From: Ronald Johnson \[mailto:ronmaile@comcast.net\] Sent: Wednesday, March 21, 2012 3:10 PM To: McConnell, Jeanie Subject: Re: 9921 Water St. Demo 2011-0652 Thanks Jeanie for your quick response. Please consider the following email as a correction response to your verbal requests. "9921 Water Street Water Issues on the surface and in the foundation excavation hole as well as continued monitoring while the foundation is being built.....to the actual drainage pipes/gravel surrounds being installed". At the NW corner of the site, there has been an underground "previous/existing" pipe with constant drainage. I have a small trench at the pipe that allows me to monitor the amount of water coming from the pipe. I have also installed an "inflatable" rubber balloon into this pipe to limit the drainage, though water still seeps out and around this obstruction. Once water builds up to an overflow point, I pump the water up to our foundation hole. Once the foundation is done, we will address this pipe and water while the backfilling is done. We also intend to place a retaining wall at the west property line, (3' tall since it is in the setback) and will be providing drainage pipes and gravel to pick up ground water at that point. We will be taking those pipes to the south to our approved outfall. The water within our excavation hole, will be pumped up to the sediment/holding ponds that we have built on the SE corner of the site. We anticipate some water will leech into the soil and additional water that will need to be removed will be done by pumping that water out to a lawn area on our NE corner of the site. This pumping will be closely monitored since it will have to be done by someone, and not left alone. I am anticipating that weather conditions are getting warmer (global warming to the rescue) as spring is upon us. Due to silt concerns, I do not plan on sending/pumping any water into the city's storm drain system. Once the foundation is done and backfilled, we should not be experiencing surface water that creates problems for our neighbor and the city. Please let me know your thoughts on this correction letter. Thanks Ron Johnson 1 ----- Original Message ----- From: McConnell, Jeanie To: Ronald Johnson Cc: Lambert, Jennifer ; Harrison, Marie Sent: Wednesday, March 21, 2012 2:26 PM Subject: RE: 9921 Water St. Demo 2011-0652 IstillŷğǝĻƓ͸Ʒreceivedanythingfromyoutoshowhowyouwillbedewateringthesite.IrecognizethatǞĻ͸ǝĻhadalot ofverbalconversationsaboutthis,butasyouandIdiscussedIwouldbeputtingthedocumentationyousendmeinthe permitfile.AtthistimeźƷ͸ƭonlycriticalthatyoushowonaplan(orstateinwriting)howyouwillbedealingwiththe dewateringofthenaturalseepagetopreventrunoffontoneighboringproperties(i.e.pumpingofwaterintothegrassy areaontheeastsideoftheproperty). Onceyoustartconstructionyouwillpotentiallyhavemorewatertodealwithandthatleadsintothesedimentpond discussionsthathavebeenhad.Youcandeferthisportionofthedewateringplan(sedimentpondinstallationor placementofabakertank)tothebuildingpermitforthenewSFR. Thanks, Jeanie From: Ronald Johnson \[mailto:ronmaile@comcast.net\] Sent: Wednesday, March 21, 2012 12:22 PM To: McConnell, Jeanie Subject: 9921 Water St. Demo 2011-0652 Hi Jeanie....just talked to Marie about this permit....it appears that it is not signed off. Pat had inspected it on March 9, when I had called in for the building dept. inspection. Marie said that engineering had to sign off also. Was there anything yet to do for this? Marie did not see a correction. Thanks Ron Johnson 2