Laserfiche WebLink
included.The easement should also state emphatically who is responsible for maintenance of the facility and <br /> what access rights are granted. <br /> 6. Can ownership of the area around the infiltration trench be switched from Lot 6 to Lot 1? It would be preferable <br /> t/ to have the facility owned by a property which actually derives a benefit from it.Then the easement would only <br /> need to be granted to one other property owner. <br /> What is the purpose of Channel 1 in the lawn and roof infiltration facility calculations? It is unclear what this <br /> represents. <br /> 8/ The permeable pavement calculations include a 1 foot depth for the "second layer." However,the plans use the <br /> �/ standard plan which calls for 6 inches of rock below the pavement. Please revise one or the other sot that they <br /> are consistent. <br /> 9. Trench dams are required beneath permeable pavement installations which exceed 2%slope (as noted in the <br /> included standard plan 430.) Please show in the plans how this will be addressed for the driveways. <br /> It <br /> I// 0. Show the proposed 6" topsoil berms in plan view as well as the landscaping infiltration trench detail to ensure <br /> �l that these elements are placed correctly and identified during construction and ongoing inspections. <br /> 11. Stormwater facility maintenance covenants should be recorded for lots 1 and 2 prior to final plat approval. <br /> ...712. The maintenance and operation information for the stormwater facilities must be provided in a separate <br /> document entitled "Maintenance and Operations Manual", and must include a first page indicating the party <br /> responsible for maintenance and operation. In addition,the following language shall also be included in both <br /> the M&O manual and the drainage report: <br /> A copy of the maintenance and operations manual shall be retained on-site or within reasonable access to the <br /> site and shall be transferred with the property to any new owner. A log of maintenance activities that indicate <br /> what actions were taken shall be kept and be available for inspection by the City of Everett upon request. <br /> /13. Some of the sheets included in the O&M information at the end of the report did not copy correctly. <br /> 14. The final plat shall include a prominent note identifying the following requirements for the individual lots: <br /> i. Maximum impervious area per lot. <br /> ii. All driveways shall be constructed of permeable paving material in accordance with City of <br /> Everett Standard Plans or alternate permeable paving materials approved by the City of Everett <br /> 1�'' Public Works Department. <br /> V pi iii. Required roof drain infiltration system dimensions and a requirement to route all roof runoff to <br /> the infiltration trench <br /> iv. A note that any revisions will require COE Public Works review and may necessitate additional <br /> Stormwater control measures <br /> v. The need to record a stormwater facility maintenance agreement for the proposed facilities. <br /> Erik Emerson PE <br /> 0 y Senior Surface Water Engineer I Public Works <br /> 425.257-8995 13225 Cedar, Everett WA 98201 <br /> everettwa.gov I Facebook I Twitter <br /> 2 c)_ <br />