1601 FLORIDA DR 2020-06-16 - Laserfiche WebLink

rL6277w PUBLIC WORKS b. Please see all redlines on the attached plans for required corrections in addition to all comments listed below. Frequently, redlines will be stand-alone and will not have an associated item in this corrections letter.Likewise,comments below may not have associated redlines. Please indicate to the City that all redlines have been adequately addressed by providing checkmarks or notes next to the City's redlines to indicate that it has been picked up or to answer a reviewer's question. A comment response letter can also be included with your resubmittal to address the comments below(handwritten remarks under each comment on this letter are perfectly acceptable). The below listed sheets have redlines. i. Sheet 1 of 6 ii. Sheet 2 of 6 iii. Sheet 3 of 6 iv. Sheet 4 of 6 v. Sheet 5 of 6 vi. Sheet 6 of 6 Notes added next to the City's redlines. 2. The comments below were generated from this project's Stormwater Reviewer. If you have any questions regarding these comments,please contact Erik Emerson with the City of Everett Surface Water Division(425-257-8995 or EEmerson@everettwa.gov). a. Detailed Drainage Report i. There are a number of references in the report to this being a preliminary drainage report and that certain pieces of information will be included in the final report. While the report appears to have most of the required information the references to it being preliminary should be removed. Once this report is approved there will be no need for an additional storm water report. D. R. Revised. ii. On Page 5 the last sentence states that Full Dispersion will be used for lots 1 & 5. Shouldn't this state full infiltration rather than dispersion? D. R. Revised. iii. In the first paragraph of Section 5 it states that flow control is not required as 100% infiltration can be achieved. On the same page is a summary of the increase in runoff rates created by the project. The statement in the first paragraph should be revised to note that flow control is not required because the project falls below the thresholds once the LID measures are implemented. D.R. Revised. iv. The tables in Section 5.1 do a good job of stepping through the List#2 LID BMPs for the roofs of lots 1&5. However, the other three lots will not have infiltration trenches. The BMPs lower in the list should be assessed for these lots. At a minimum splash blocks or perforated stub out connections seem like they might be feasible. D. R.Revised. Page 2 of 4