623 WARREN AVE 2022-05-17 - Laserfiche WebLink

Grant Moen From: Grant Moen Sent: Tuesday, November 05, 2013 12:54 PM To: lovteachin@gmail.com' Cc: Mark Sadler Subject: FW: Concerns Hi Gini, I will try to answer your questions and concerns in the order they appear in your email.We can discuss additional questions and concerns when we meet later as you and Mark have discussed. 1) The upstairs portion of your home should not be at risk of flooding in a storm surcharge event since it is located above the surface of the street. If sewer pressures build up to the elevation of the road surface the material will spill out of the manhole covers and flow in the road allowing a relief of pressure prior to flow entering your upstairs. 2) As described above it is possible for sewer to spill onto the road surface if the flows far exceed the system capacity. However this material would typically reenter the sewer system through downstream catch basins where capacity is available.We can discuss your concerns regarding surface water flow when we meet. 3) Regarding the backwater valve,the City hired a consultant to evaluate the different available backwater valves following a large storm event in June of 2010.At that time the City choose to use the clean check valve by Rector Seal (http://cleancheck.rectorseal.com/about.htm).As we discussed one of the major advantages of this backwater valve is that it can be located outside of the house in a clean out that can be removed for inspection and maintenance rather then requiring the installation of a manhole for access to a backwater valve that would necessitate a confined space entry for access. Thank you, Grant Moen,P.E. Associate Engineer City of Everett Public Works 3200 Cedar Street Everett,WA 98201 (425)257-8947 gmoen@ci.everett.wa.us From: Mark Sadler Sent:.Monday, November 04, 2013 1:06 PM To: Grant Moen Subject: FW: Concerns From: Gini Ostrom [mailto:lovteachinOgmail.com] Sent: Sunday, November 03, 2013 10:07 PM To: Mark Sadler Subject: Concerns Good Morning Mark, i