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V-12-03 Application - Cover Letter - Drawings.pdfRECEIVED", JAN 2 6 2012 0EVE1 OPMENT SEWCES Il ARCHITECTURAL, DESIGN REVIEW •' • ❑ COMPREHENSIVE PLAN AMENDMENT (7 CONDITIONAL USE PERMIT FILE # ��t C ZONE F HOME OCCUPATION DATE � .. � (; � :��_ REO' D BY ]FORMAL SUBDIVISION I SHORT SUBDIVISION FEE RECEIPT LOT LINE ADJUSTMENT HEARING DATE F PLANNED RESIDENTIAL DEVELOPMENT I 1 OFFICIAL STREET MAP AMENDMENT I I HE 1 STAFF F1 PB 7 ADB CC F STREET VACATION CREZONE SHORELINE PERMIT R] VARIANCE / REASONABLE USE EXCEPTION ❑ OTHER: PROPERTY ADDRESS OR LOCATION NINE LOCATIONS SEE ATTACHED MAP AND LIST - EXHIBIT A PROJECT NAME (IF APPLICABLE) EDMONDS LIFT STATION REHABILITATION PROJECT PROPERTY OWNER VARIES —SEE ATTACHED EXHIBIT B PHONE # ADDRESS E-MAIL FAX # TAX ACCOUNT# SEC. TWP. RNG. DESCRIPTION OF PROJECTOR PROPOSED USE (A'rTACH COVER LETTER AS NECESSARY) SEE ATTACHED DESCRIBE HOW THE PROJECT MEETS APPLICABLE CODES (ATTACH COVER LETTER AS NECESSARY) SEE ATTACHED APPLICANT CITY OF EDMONDS ENGINEERING PHONE# (425) 771-0220 ADDRESS 121 5"' AVE N EDMONDS WA 98020 E-MAIL FAX # CONTACT PERSON/AGENT PAM LEMCKE CAPITAL PROJECT MANAGER PHONE # (425) 771-0220 ADDRESS 1215"' AVE N EDMONDS WA 98020 E-MAIL LEMCKE@ CI.EDMONDS.WA.US FAX# (425)771-0221 The undersigned applicant, and his/her/its heirs, and assigns, in consideration on the processing of the application agrees to release, indemnify, defend and hold the City of Edmonds harmless from any and all damages, including reasonable attorney's fees, arising from any action or infraction based in whole or part upon false, misleading, inaccurate or incomplete information furnished by the applicant, his/her/its agents or employees. By my signature. I certify that the information and exhibits herewith submitted are true and correct to the best of my knowledge and that I am authorized to file this applig,atgon pn the behalf of�'the owner as listed below. SIGNATURE OF APPLICANT/AGENT �— DATE E / /�x' � / 1 Propelrtx.Owner's Ap*ori tipn I, �1 �V l stFV I'c' certify under the penalty of perjury under the laws of the State of Washington that the following is a/ true and correct statement: I have authorized the above ApplicantlAgent to apply for the subject land use application, and grant my permissio for the public officials and the staff of the City of Edmonds to enter the subject property for the purposes' spec ion and p ,ting he to this application. SIGNATURE OF OWNERDATE (questions? Call (425) 771-0220. Revised on 9/14/10 B - Land Use Application - Filled Page 1 q/ I CMS ENGINEERS, LLC January 24, 2012 Jennifer Machuga, Associate Planner City of Edmonds, Planning Division 121- 5th Avenue North Edmonds, WA 98020 _A JAN 2012 COUNTER Re: Noise Variance Request Wastewater Lift Station Rehabilitation - Project No. E9GA-304 Dear Ms. Machuga, 2V y TIll�a' JAN 26 12012 The purpose of this letter is to request a temporary nighttime noise variance for up to four weeks per site as required by the City of Edmonds Community Development Code. We are including a variance application for processing, notarized adjacent property owners list, overall vicinity map outlining the location of each of the nine lift stations, a detailed site plan of each lift station including addresses. The construction schedule is still to be determined, but field work is anticipated to begin in spring 2012 and continue through summer 2013. The project consists of the rehabilitation of nine wastewater lift stations located throughout the City. Work at each station will result in temporary disconnection of electrical and mechanical equipment used to move wastewater through the station and the pressure pipe ("force main") downstream of each station for improvements and equipment replacement. The contractor will be required to maintain continuous sewer service at all stations, using temporary power supply and/or pumping equipment as appropriate to the site conditions and his reasonable and efficient methods. The contractor will be required to use temporary pumps and power supplies for continued service. He will also be required to have redundant pump and power supply equipment at each site. The duration of each temporary equipment operation is anticipated to be between two and four weeks, but may be longer if construction or unanticipated conditions warrant an extension. The force main at some stations will be replaced, necessitating use of temporary force main piping from the station to the point of discharge (typically a sewer manhole). The project is scheduled for completion within 250 working days (approximately 14 months with reasonable allowance for bad weather). The rehabilitation work will take place during normal construction hours, within the constraints of the noise ordinance. The exception will be the use of temporary equipment for continuous sewer flows, which will need to be in service over night. All stations are in residential areas, with proximity to residential units ranging from less than 20 feet to over 100 feet. Four stations (#5, 11, 14 and 15) serve small areas with five horsepower or smaller pumps, per station. The contractor will likely use electric pumps to maintain sewer service. Thus the noise level will be essentially the same as current and proposed operations. However, a standby power generator will be required to be in place for usage during a power outage that affects the station and surrounding area. Such usage should be considered an emergency use and therefore exempt from the typical noise threshold limits outside of the "daytime" period. The five remaining stations (#3, 4, 9, 10 and 12) serve larger areas, with five- to 25 -horsepower pumps per station. The contractor may use electric pumps but will likely use a generator powered unit to 12507 DEL -RED ROAD SUITE 101 BELLEVUE, WA 98005-2500 TEL (425) 637-3693 FAX (425) 637-3694 maintain sewer service. A common type of unit will operate continuously as the primary pumping device. This unit will be required to have a sound -attenuation enclosure, but it is not likely to lower sound levels to the limit in the noise ordinance for overnight operations. Therefore a variance is being sought to allow commercially available, sound -attenuated bypass pumping equipment for primary pumping service at these stations. A backup pump and/or generator will be required (but without the sound attenuation provisions) to be in place for usage during a power outage that affects the station and surrounding area. This equipment would also be used if there were a failure of the primary pumping unit. Such usage should be considered an emergency use and therefore exempt from the typical noise threshold limits outside of the "daytime" period. While the primary construction activities will take place during the daytime, the nighttime operations described above are necessary in order to maintain continuous sewer service during the rehabilitation of the existing wastewater lift stations. We propose the following measures to minimize impacts: 1. Nighttime activities shall be limited to those identified above. 2. Primary pumping systems shall be electric pumps or sound -attenuated engine -driven pumps to reduce noise as much as possible. 3. A copy of the noise variance shall be kept at each project site at all times. 4. The City will post a 24-hour complaint number on information signs. 5. Residents within 300" of each site where nighttime activities will take place will be notified. The construction Project Engineer in charge of administering the contract is: Pam Lemcke Capital Projects Manager City of Edmonds 1215 Ih Avenue North Edmonds, WA 98020 Phone: (425) 771-0220 Email: lemcke@ci.edmonds.wa.us Rodney Langer, P.E. CHS Engineers, LLC 12507 Bel -Red Road, Suite 101 Bellevue, WA 98005 Phone: (425) 637-3693 Fax: (425) 637-3694 Email: rodneyl@chsengineers.com Should construction activities associated with this project cause noise impacts and a noise complaint is received, we request that you help us resolve it by notifying the Project Engineer within 24 hours of occurrence. 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