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• Mr. Scott Harlicker February 19, 2002 Page Two B. PRELIMINARY GRADING PLAN • The proposed access to the northerly existing road servicing the Wash 'N Fill is relatively steep at 3% grade flowing into the parking lot. Even though a concrete valley gutter is proposed across this driveway, it is unclear how stormwater from the Wash 'N Fill site will be kept out of the bank parking lot. It appears that stormwater flowing from the Wash 'N Fill along this access road to Zane Street may flow into the Sterling Bank parking lot. • On the east side of the proposed parking lot, the center top of curb elevation is shown as 897.67. It appears that this elevation is too low if drainage is intended to flow from here to a catch basin with a top of 897.63. • On the drive-thru portion of the proposed bank building, a proposed storm sewer line is shown through the area for the future expansion of the drive-thru. We would suggest that - the storm sewer line be moved to the south, out of the way of the future expansion, so that it does not have to be moved or impacted in the future if the drive-thru is, in fact, expanded. • The access road at the extreme south portion of the site needs to have catch basins installed near the intersection with Zane Street to eliminate storm water exiting the site, draining directly onto Zane Street. IPThe elevations at this entrance road of 898.84 are wrong. C. UTILITY PLAN • The initial utility plan showed sewer and water services coming from the northern side of the building. The revised utility plan shows the sewer and water services coming from the lot to the south. We would recommend that the revised plan not be implemented because the sewer and water services to the south are intended for the next lot. With the revised plat of this area, there are actually more lots platted than there are sewer and water services available, which means that at some point Zane Street will have to be open-cut to provide additional services. If sewer and water services are used faster than intended, there will be more open-cuts of Zane Street. Therefore, we would recommend that the sewer and water services be obtained from the north side of the building as originally planned. • The 8-inch water line brought into the building for fire sprinkling needs to have a domestic service tapped off of it prior to entering the building. • The sanitary sewer line which comes from the existing manhole in the access road at the south end of the Wash 'N Fill site is 150 feet long (it is mislabeled on the plan as 105 feet). Because it is over 100 feet long, there needs to be a cleanout on the line at some point. • The existing two hydrants, one centrally located in front of the building along Zane Street and one located to the north of the building adjacent to the access road, have been reviewed with Fire Chief Bruce West and he is comfortable with these two existing II hydrants providing fire protection. Howard R. Green Company Ltr 2-19-02 Harlicker CONSULTING ENGINEERS