5.4. SR 06-16-2008 - Laserfiche WebLink

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process of reviewing the storm sewer calculations and will comment on them at a later date. 3. The buildings on the site are proposed to be serviced by sanitary sewer and water from Zane Street. The water system shows two connections into the 16-inch existing watermain under Zane Street. It appears that the watermain shown on Sheet C7 of 8 does not extend far enough to the south to provide service to the future building shown in this area. I do not believe that there will be adequate fire protection provided for the future buildings by extending adead-end from the southerly connection to Zane Street watermain. I would recommend that the second connection to the Zane Street watermain creating the loop internally be at the southerly driveway, and. be constructed at this time to minimize disruption to existing traffic on Zane Street. Sanitary sewer is provided by connecting to a manhole in Zane Street and then extending a sewer system internally to serve the two northerly buildings proposed at this time. Future extensions internal for additional buildings in the future can be easily accommodated. It is important to note that the existing sanitary sewer in Zane Street is very deep and will require an inside drop to be constructed according to the city standards. Each unit in the proposed building that is individually owned must have an individual service. If the buildings have one owner but multiple tenants, a single service will suffice. 4. It will be important for a detailed construction signing and traffic control plan be submitted with the construction plans. The flow of commercial traffic along Zane Street must continue during construction within the Zane Street right-of-way so there is no disruption to business traffic at the adjoining existing buildings. 5. A NPDES permit will be required for this site. A copy of the permit will be necessary prior to any work on the site. A Storm Water Pollution Prevention Plan (SWPPP) will also be required. The city's policy is that the SWPPP be submitted in an 8 1/z" x 11" format, signed by the engineer, developer, and contractor. The city has specific requirements for catch basin sediment control devices that should be followed in the SWPPP. 6. The watermain and sanitary sewer systems will be considered public, since they will serve multiple buildings; therefore, they must be designed to city standards using the prescribed materials. Also, appropriately-sized easements will be necessary in the platting of this property for the maintenance and operation of these two utilities. 7. Final review of hydrant spacing for fire protection will be accomplished at the final plan review and will involve the Fire Chief. 8. There will be a requirement to provide record drawings including GIS data of the constructed utilities including sanitary sewer, watermain and storm sewer after S:\PLANNING ~/LAII~I\Case Files\SP\SP 08-08 Zane St Commons\05 21 OS engts commentes.doc Page 2