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Home My WebLink AboutBLD2021-00010 Truck Barn - BLD Small parcel storm water management - 1/12/2021 ' Name QSry-J P, Parcel# �d/ /�li,�T(� BLD# l�y�i( • Mason County Department of Community Development Small Parcel Stormwater Management Application/Worksheet (page 1 of 2) Per Mason County Code,Title 14,Chapter 14.48 a stormwater site plan is required whenever a building application is made for residential development,or redevelopment',with more than 2,000 square feet of impervious surface2. 'Redevelopment means,on an already developed site,the creation or addition of impervious surfaces,structural development including construction,installation or expansion of a building or other structure,and/or replacement of impervious surface that is not part of a routine maintenance activity,and land disturbing activities associated with structural or impervious redevelopment. 'Common impervious surfaces include,but are not limited to,rooftops,walkways,patios,driveways,parking lots or storage areas, concrete or asphalt paving,gravel roads,packed earthen materials,and oiled,macadam or other surfaces which similarly impede the natural infiltration of stormwater.Open,uncovered retention/detention facilities shall not be considered as impervious surfaces. To Calculate Impervious Surfaces Please Complete This Table Surface Type Length X Width = Area *All dimensions in feet Buildings X 5o = l X = Measurements for buildings are taken at the X _ perimeter of the farthest projections(example: eaves/gutters) X = Driveways 20 X 3 = g o X = Length of drive begins at the right of way s X Parking Areas X = X = Any paved, gravel or packed area per definition above table X = PatiosAlValks X X = Any paved, gravel or packed area per definition above table X Others X X If the total impervious area of the proposed site X = development is greater than 2000 square feet a Small Parcel Stormwater Site Plan is Required Total Impervious Surface Area (sum of all areas) �,�3cv If the Total Impervious Surface Area is LESS THAN 2000 Square Feet,please read,acknowledge and sign below. Based Upon the information you have provided a Stormwater Site Plan IS NOT required for this development activity. Owner/Builder/Agent Acknowledges that submission of inaccurate information may result in a stop work order or permit revocation. Acknowledgement of such is by signature below.I declare that I am the owner,owner's legal representative,or the contractor.I further acknowledge that the information provided is accurate and employees of Mason County are granted access to the above- described for review and inspection as may be required. X Owner/Agent/Contractor(circle one)Date: If the Total Impervious Surface Area is GREATER THAN 2000 Square Feet,please read,acknowledge and sign the information provided on page 2 of 2. Pagel of 2 Name Parcel# BLD# Mason County Department of Community Development Small Parcel Stormwater Management Application/Worksheet (page 2 of 2) Based Upon the information you have provided a Stormwater Site Plan IS Required for this development activity. Title 14, Chapter 14.48 of the Mason County Code(MCC)regulates compliance requirements for Stormwater Management in this jurisdiction.A complete copy of the ordinance can be found on the Mason County website: http//www.co.mason.wa—us/code/commissioners/index.htm Please follow the links to"Title 14,Chapter 14.48 Stormwater Management". Regulated activities shall be conducted only after Mason County Public Works approves a stormwater site plan (Mason County Code Title 14 Chapter 14.48 section 14.48.70). You will receive a copy of the Public Works document entitled"Managing Storm Drainage on Small Lots,The Small Parcel Stormwater Site Plan".This document will assist you in preparing the necessary information and plans for Public Works to review and approve. Per Department of Public Works this document will constitute an approved plan if all of the relevant details*are to be installed in their entirety AND no part of the stormwater system adversely affects any septic system(see Environmental Health information below). If an alternative system is to be used a plan will need to be submitted to Public Works for approval. A design by a registered professional may be required for more complex sites. *These details are found in the document Managing Storm Drainage on Small Lots, The Small Parcel Stormwater Site Plan on the pages that begin with"Handout" PLEASE INITIAL BELOW TO INDICATE THE STORMWATER MANAGEMENT PLAN FOR THIS SITE Q ` The relevant details from Managing Storm Drainage on Small Lots, The Small Parcel Stormwater Site Plan will be installed their The AND the system will be located as not to adversely affect any septic systems on this,or any other,parcel. B) An alternative plan and/or professional design will be submitted to the Department of Public Works for approval AND the system will be located as not to adversely affect any septic systems on this,or any other,parcel. If you have further questions pertaining to parcel drainage and stormwater management Mason County's Public Works Department can provide additional instructions,guidance and examples. (Section 14.48.130)contact Public works at: Phone: (360)-427-9670 EXT.450 Mail: P 0 Box 1850, Shelton WA 98584 Physical:415 N 6th St, Shelton WA 98584 If this development has,or will have,a septic/drainfield system you may need to contact Mason County Division of Environmental Health to ensure that the stormwater system will not adversely affect the septic system of this,or any other,parcel.You may also wish to consult with the septic design professional involved with the project. Mason County Division of Environmental Health can be reached at: Phone: (360)-427-9670 EXT. 352 Mail: P 0 Box 1666, Shelton WA 98584 Physical: 426 W Cedar St, Shelton WA 98584 A condition will be added to the building permit that states, in part, that all conditions the stormwater site plan will be met prior to a request for final inspection of the building permit. Owner/Builder/Agent Acknowledges that submission of inaccurate information may result in a stop work order or permit revocation. Acknowledgement of such is by signature below. I declare that I am the owner,owner's legal representative,or the contractor. I further acknowledge that the information provided is accurate and employees of Mason County are granted access to the above- described pr rty for review and inspection as may be required. X '`� Owner/Agent/Contractor(circle one)Date: /- /Z— 20Z / Page 2 of 2 MASON COUNTY PUBLIC WORKS DIRECTOR/COUNTY ROAD ENGINEER Shelton, Washington 98584 0 � DATE: March 10, 2021 INTER-DEPARTMENTAL COMMUNICATIONS TO: Trish Woolett PARCEL # 42018-11-60090 FROM: Fred Perryman — E&C Asst Manager PERMIT #: BLD 2021-00010 SUBJECT: Stormwater Site Plan (SSP) NAME: West Mason Fire Trish: The stormwater site plan and narrative for West Mason Fire off of Dayton Airport Rd was received and reviewed by Public Works. The stormwater plan doesn't effectively address the minimum requirements 1-5 of the 2012 Washington State Department of Ecology Stormwater Manual for Western Washington. The manual can be found at: https://fortress.wa.gov/ecV/madcap/wq/2014SWMMWWinteractive/Content/Resources/DocsFor Down load/2014SWMMWW.pdf Close attention needs to be paid to Minimum Requirement #2 especially, with a written narrative addressing all 13 elements, which may not all apply. Adequate erosion and sediment control features need to be implemented during land disturbing activities to protect neighboring properties and State waters from adverse stormwater runoff impacts. The migration or release of silty water or mud from the applicant's property will be considered a violation of County and State water quality protection regulations. Please feel free to contact me at 625 if you have any questions. S cerely, Fred Perry an E&C Asst Manager APPROVED AS SUBMITTED REVISE/RESUBMIT REJECTED APPROVED W/ REVISIONS SHOWN av