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HomeMy WebLinkAboutSEP2008-00157 - SEP Determinations - 4/16/2009 SEPA Contact List MASON COUNTY DCD Sent SEPA Z,00Z-(0I5Q to (check all that apply)on Skokomish Tribal Nation WA Department of Ecology Natural Resources Dept. Environmental Review Section ATTN: Randy Lumper PO BOX 47703 N 541 Tribal Center Rd. Olympia,WA 98504-7703 Skokomish Nation,WA 98584 sepaunit@ecy.wa.gov rlumper@skokomish.org U.S.Army Corps of Engineers Tribal Historic Preservation Officer SEPA Reviewer-John Pell Attn: Kris Miller PO Box C-3755 80 N Tribal Center Rd Seattle,WA 98124 Skokomish Nation, WA 98584 shlanay1@skokomish.org WA Dept.of Fish and Wildlife ATTN: Margie Schirato (saltwater) Quinault Indian Nation 2391 W Deegan Rd. ATTN: Mark Mobbs Shelton,WA 98584 PO Box 189 schirmms@dfw.wa.gov Tahola,WA 98587 mmobbs@quinault.org WA Dept. of Fish&Wildlife ATTN: Gloria Rogers,Area Habitat Biologist Squaxin Tribal Nation 48 Devonshire Rd Natural Resources Dept. Montesano,WA 98563-9618 2952 SE Old Olympic Highway rogergsr@dfw.wa.gov Shelton,WA 98584 jdickison@squaxin.nsn.us WA Dept.of Transportation Alana Hess, Development Review Engineer The Confederated Tribe of the Chehalis P.O. Box 47440 ATTN: SEPA Reviewer-Glen Connelly Olympia,WA 98504-7440 420 Howanut Rd. HESSA@wedot.wa.gov Oakville,WA 98568 gconnelly@chehalistribe.org City of Shelton 525 West Cota St. Shannon Soto Shelton,WA 98584 WA DNR,South Puget Sound Region jasond@ci.shelton.wa.us 950 Farman Avenue North Enumclaw,WA 98022-9282 Port of Shelton shannon.soto@dnr.wa.gov Attn: Patti Miller-Crowley 21 West Sanderson Way M Elizabeth Ellis Shelton,WA 98584 WA DNR,Aquatic Resources pattimc@portofshelton.com PO BOX 47027 Olympia,WA 98504-7027 Office of Archaeology&Historic Preservation elizabeth.ellis@dnr.wa.gov ATTN: Lance Wollwage P.O. Box 48343 Boyd Powers Olympia,WA 98504-8343 WA DNR, SEPA Center Lance.Wollwage@dahp.wa.gov PO BOX 47015 Olympia,WA 98504-7015 Tacoma Public Utilities boyd.powers@dnr.wa.gov Real Property Services Attn: Dave Letterman Olympic Region Clean Air Agency,John Kelly 3628 S 35th St 2940-B Limited Ln. NW Tacoma,WA 98409-3192 Olympia,WA 98502 john@orcaa.org Applicant: �1.ti114�� �� I'T I C ►--1,t't.1 Mason County Transit School District: J PO Box 1880 Mason Cty Public Works ATTN: Shelton,WA 98584 Mason C nv. Health ATTN: doconnell@masontransit.org Agent: ' V)' ' ? a va PC, STArF MASON COUNTY MC N DEPARTMENT OF COMMUNITY DEVELOPMENT 0 S N Planning Division ° v y P O Box 279, Shelton, WA 98584 �° (360)427-9670 1864 MITIGATED DETERMINATION OF NONSIGNIFICANCE (WAC 197-11-350) SEP2008-00157 Description of Proposal: Storage Units- two parcels. Construct five self-storage buildings g p 9 9 on two adjacent parcels for a total of 27,980 sq foot of combined building size. Proponent: DWIGHT MCKAY Site Address (If Assigned): 1436 E SHELTON SPRINGS RD SHELTON Directions to Site: GO PAST SHELTON HIGH SCHOOL TURN RIGHT INTO THE SHELTON PRESBRYTRAIN CHURCH. LOT IS LOCATED ON THE RIGHT Parcel Number: 420122190003 Legal Description: LOT: 3 OF SIP #2413 Lead Agency: Mason County The Lead Agency for this proposal has determined that it does not have a probable significant adverse impact on the environment. An Environmental Impact Statement (EIS) is not required under RCW 43.21 C.030(2)(c). This decision was made after review of a completed Environmental Checklist and other information on file with the Lead Agency. This information is available to the public upon request. MITIGATED MEASURES ARE ATTACHED. Please contact Pam Bennett-Cumming at ext. 287 with any questions. This DNS is issued under WAC 197-11-340(2). The Lead Agency will not act on this proposal for 14 days from the date shown below, when the determination is final. Comments must be submitted to Dept. of Community Development, P.O. Box 279, Shelton WA 98584 by 5/2/2009. Appeal of this determination must be filed within a 14-day period following this final determination date, per Mason County Code Chapter 15.11 Appeals. Authorized Local Government Official Date REVISIONS ZONE REV DESCRIPTION DATE APPROVED McKay Proposed Planting Pain 0' Overstory Planting Details. Plantings Canopy Plantingsl Hemlock, Douglass Fir Understory (6 per 100') Plantings_,,/ I Shrub Plantin s Emergent Understory P(antings: Alder, Ocean Plantin s spray, Vine Maple, Pacific Nine Bark Q2 per 100') Shrub Plantings; Salal, Western Service Berry, Salmonberry, Pacific Ninebark, Tall Oregon Grape (18 per 100') 6' Emergent Plantings: Miscanthus, Switch Grasses, Slough Sedge Overstory Plantin s Understory Plantings i Shrub Martin s Emergent Plantin Dwight McKay Storage Proposal McKay Painting Plan SIZE I FSCM NO. DWG NO. REV SLO SM3-SBLD-0013 E N❑ SCALE -EET 1 OF 1 Disperse downspout discharge into vegetate d buffer Property Line -220, by way of buried 6"PVC transport pipe&dispersion pad. 4 b 10, Q • ` -------- --, 10'Vegetated Buffer of NA 20' I� / 20' 00003 ----- I Lines(Dashed) Pond Notes: N a The pond designed for Prcl.No. N p / 12,30 00 '°_'° 1 42012-21-90003(Floor Area=1440 SF)784 N w�TEg�.0 Q� N 1N25 ° I will accomodate a total building area �s`SIONAL E / °' a up to 19,200 SF 30'Gate °c° B j T&pond igned for Parcl.No. I�+ / > Is 110 42012-21-900 (Floor Area 1080 SF) b ,2 2u 1 will accomodate a al building area Fc Conjectural Storage Buil ngs: I 4� $ � up to 20,000 SF Bldg A 8,500 S r Ft I c7 c o Bldg B 9,240 qr Ft I I`-t 00 o y Y V Nv. Bldg C 8,550 qr Ft j 1210 (TrVkdsa�fio"°'"--.) I o H �.�A►d +n I l a N y to 1 I Security Fenced Bldg D 9,12 Sqr F 25. �o I Pro erty Line 246.88' 2r I Property Boundaries oo Total- 36,15 Sqr t __ I 00 --J Op 10, I G� 10 I 00004 Connecting Driveway „,o -I I I 1 UM2o 1 Io with 12"Dia.x 40' I long corrugated I I Plastic or Metal Pipe I SCALE: 1"=60' I ^w y N 1 1 12" 70 i 0 20 40 60 ; ON I mas a tit C� w E I , 1J I °.j C¢ Q o 10 I S' 1 10' bD � s ,�, I co I I o0o CD � C�i� od � I 10'Vegetated Buffer > c CID 1 >3 I Lines(Dashed) q` .� 14� I °" qC/ / 2.0 > .o > L n I 17' CD 0 .b R a1.30 °, 2 Direct Gutter Downspouts / Is' into 6"Diameter solid PVC gL_ pipes discharging to Rock N ------------------- PP1 �/ -------------- Armored Dispersion Pads °, x a roperty the (1'thick)located at discharge end of pipe near retention I / pond floor bottom. 4/15/2009 Conditions Associated With 4:28:03PM Case #: COM2008-00139 IP10 4 -SW aoO(R4 -n© is'7 Permit Condition Status Updated item# Code Title Status Changed By Tag Date By 1) 1 PLUMBING FIXTURES NOT REQUIRED NOT MET 11/19/2008 DLC Plumbing fixtures need not be provided for unoccupied buildings or facilities. When offices,or other areas normally occupied,are provided in order to conduct business plumbing fixtures shall be required. Installation of plumbing fixtures shall be approved and permitted prior to installation. X 2) 1 WALL&CEILING COVERINGS NOT MET 11/19/2008 DLC Rooms and enclosed spaces shall have Class C interior wall and ceiling finishes or better. Class C finishes shall have a smoke developed index of 0-450 and a flame spread index of 76-200. Provide classification information during inspection. X 3) 1 ACCESSIBLITY-STORAGE BUILDING NOT MET 11/19/2008 DLC At least 5%but not less than one storage unit shall be accessible to persons with disabilities. The entire facility includings A,B,C,D,and E contain 88 units. Therefore at least 5 units shall be accessible and shall be dispersed throughout the various classes of spaces provided. Where more classes of spaces are provided than the number of required accessible spaces,the number of accessible spaces shall not be required to exceed 5%. Accessible spaces are permitted to be dispersed in a single building of a multibuilding facility. Accessibility design shall apply to parking,signage,entrance/exit. Exit/entrances shall be provided with a landing with not more than 1/2-inch threshold height,5-ft x 5-ft landing, and door hardware that meets or exceeds accessible requirements. Handles,pulls,latches,locks and other operable parts on accessible doors shall have a shape that is easy to grasp with one hand and does not require tight-grasping,pinching,or twisting of the wrist to operate. Ramps shall comply with ICC/ANSI 117.7,section 405 including a running slope not steeper than 1:12 and be provided with edge protection and handrails. X 4) 700 RCW 18.27 NOT MET 11/19/2008 DLC Contractor registration laws are governed under RCW 18.27 and enforced by the WA State Dept of Labor and Industries,Contractor Compliance Division.There are potential risks and monetary liabilities to the homeowner for using an unregistered contractor.Further information can be obtained at 1-800-647-0982.The person signing this condition is either the homeowner,agent for the owner or a registered contractor according to WA state law. X 5) 1001 PLANS REQUIRED ON SITE NOT MET 11/19/2008 DLC All approved plans are required to be on-site for inspection purposes. If inspection is called for and plans are not on site,Approval WILL NOT be granted. In addition,a reinspection fee,based on the current fee schedule, minimum one-hour will be charged and collected by the Mason County Building Department prior to any further inspections being performed or approvals granted.X 6) 1002 ADDRESS/ROAD SIGNING NOT MET 11/19/2008 DLC Owner/Agent is responsible to post the assigned address and/or purchase and post private road signs in accordance with Mason County Title 14.28. X Page 1 of 5 CaseConditions_rpt 4/15/2009 Conditions Associated With 4:28:04PM Irflo Case #: COM2008-00139 Permit Condition Status Updated item# Code Title Status Changed By Tag Date By 7) 1012 SITE PLAN REQUIRED ON SITE NOT MET 11/19/2008 DLC The approved site plan is required to be on-site for inspection purposes. If inspection is called for and the site plan is not on site,Approval WILL NOT be granted. In addition,a reinspection fee,based on the current fee schedule,minimum one-hour will be charged and collected by the Mason County Building Department prior to any further inspections being performed or approvals granted. X 8) 1015 Unheated Non-Res.Structure NOT MET 11/19/2008 DLC This structure is approved as an unheated space as identified by by the Mason County Semi-heated Building Exemption Guidelines. X 9) 1500 ROOF WIND LOADS NOT MET 11/19/2008 DLC Per 2003 IRC-SECTION 1609-WIND LOADS- 1609.1 Applications. Buildings,structures and parts thereof shall be designed to withstand the minimum wind loads prescribed herein. Decreases in wind load shall not be made for the effect of shielding by other structures. Per FIGURE 1609 BASIC WIND SPEED (3-SECOND GUST)the wind speed for Mason County is 85 MPH. X 10) 4999 Flammable+Combustible Liquids NOT MET 11/19/2008 DLC The use,handling and storage of hazardous materials or flammable and combustible liquids in excess of 10 gallons is not allowed without the approval of the Mason County Fire Marshal. X 11) 5002 ENGINEERING NOT MET 11/19/2008 DLC Any changes in construction shall be reviewed by engineer of record and submitted in writing to the Mason County Building Department prior to construction. All engineering documents are a part of the approved set of plans and must remain attached thereto. If engineering documents are removed,approval will not be granted. In addition,a reinspection fee,based on the current fee schedule,minimum one-hour will be charged and collected by the Mason County Building Department prior to any further inspections being performed or approvals granted. X 12) 5003 ALL CONSTRUCTION NOT MET 11/19/2008 DLC ALL CONSTRUCTION MUST MEET OR EXCEED ALL LOCAL CODES AND THE INTERNATIONAL CODE REQUIREMENTS AND OCCUPANCY IS LIMITED TO THE PERMITTED AND APPROVED CLASSIFICATION. ANY CHANGE OF USE OR OCCUPANCY WOULD RESULT IN PERMIT REVOCATION. CHANGE OF USE MUST BE APPROVED PRIOR TO CHANGE. X 13) 5019 MCPW Development Requirements NOT MET 11/19/2008 DLC Provisions for surface/subsurface drainage control must be implemented with new construction or development on site and MUST NOT adversely impact adjacent parcels. Under the requirements of Mason County Stormwater Ordinance,either private ditches and drains will meet requirements of the stormwater ordinance or prior approval will be granted to use an existing utility and drainage easement dedicated for that specific purpose. For further information regarding this ordinance and the REQUIREMENT to obtain an ACCESS PERMIT for the installation/construction of a driveway or access connecting from a Mason County Road, Contact the Mason County Public Works Department prior to construction at Ext 450. For any construction which is proposed to be located within 25'of a Mason County road right of way,it is suggested to contact that office to review future planned work which may affect your project. X Page 2 of 5 CaseConditions..rpt 4/15/2009 Conditions Associated With 4:28:04PM 11014 Case #: COM2008-00139 Permit Condition Status Updated item# Code Title Status Changed By Tag Date By 14) 5030 Changes to Approved Plans NOT MET 11/19/2008 DLC Changes to approved building plans that affect compliance to the current Washington State Energy Code (WSEC),ventilation and Indoor Air Quality Code(VIAQ),Building/Plumbing/Mechanical Codes and/or Mason County Regulations shall be approved prior to construction. X 15) 5045 FIELD CORRECT NOT MET 11/19/2008 DLC CONSTRUCTION PROCESS TO BE FIELD CORRECTED AS REQUIRED PER MASON COUNTY BUILDING DEPARTMENT AND THE ADOPTED BUILDING CODE. The construction of the permitted project is subject to inspections by the Mason County Building Department. All construction must be in conformance with the international codes as amended and adopted by Mason County. Any corrections,changes or alterations required by a Mason County Building Inspector shall be made prior to requesting additional inspections. X 16) 5510 Property Lines NOT MET 11/19/2008 DLC All property lines shall be clearly identified at the time of foundation inspection. X 17) 5600 FINAL INSPECTION REQUIRED NOT MET 11/19/2008 DLC All building permits shall have a final inspection performed and approved by the Mason County Building Department prior to permit expiration.The failure to request a final inspection or to obtain approval will be documented in the legal property records on file with Mason County as being non-compliant with Mason County ordinances and building regulations. X 18) 5610 PERMIT EXPIRATION NOT MET 11/19/2008 DLC All permits expire 180 days after permit issuance,or 180 days after the last inspection activity is performed. The Building Official may extend the time for action for a period not exceeding 180 days,upon the receipt of a written extension request indicating that circumstances beyond the control of the permit holder have prevented action from being taken. No more than one extension may be granted. X 19) 5710 SOLID WASTE STORAGE NOT MET 11/19/2008 DLC Recyclable materials&Solid Waste Storage: Space shall be provided for the storage of recycled materials and solid waste. The storage area shall be designed to meet the needs of the occupancy,efficiency of pick-up,and shall be available to occupants and haulers.X 20) 260 Fire Protection Requirements NOT MET 2/18/2009 LAW PER TITLE 14 MASON COUNTY BUILDING CODE-CHAPTER 14.17, STANDARDS FOR FIRE APPARATUS ACCESS ROADS- 14.17.110: A fire apparatus access road in excess of 14%grade and more than 150'to new residential or commercial structures will require an automatic fire sprinkler system installed. Contact the Mason County Fire Marshal at (360)427-9670,extension 273,for further information. x Page 3 of 5 CaseConditions-rpt 4/15/2009 Conditions Associated With 4:28:04PM Case #: COM2008-00139 pi$ Permit Condition Status Updated item 9 Code Title Status Changed By Tag Date By 21) 270 Fire Marshal Comments NOT MET 2/18/2009 LAW Install 2A 1 OBC fire extinguishers throughout the building so the maximum distance of travel does not exceed 75 feet in any direction and mounted no more than 60 inches from the top of the unit to the floor/ground. X Install a key/knox box on all buildings and any gates into the site per section 506 of the 2006 International fire code.Please contact the local fire district for more information and inspections. X The building will either need to be compartmentalized into 2,000 sqaure foot sections or smaller with a 3 hour fire wall built to 2006 IBC standards or a automatic fire alarm system installed to NFPA 72 standards that is fully monitored by a UL certified monitoring company.A separate permit applcation is required to be submitted for the alarm system. X 22) 34 No Degradation of Water Quality NOT MET 4/15/2009 PBC Water quality is not to be degraded to the detriment of the aquatic environment as a result of this project. X 23) 60 Erosion Protection NOT MET 4/15/2009 PBC Prior to final approval,all upland areas disturbed or newly created by construction activities shall be seeded, vegetated or given an equivalent type of erosion protection(silt fencing or straw matting). X 24) 170 Temporary Erosion Control NOT MET 4/15/2009 PBC Temporary erosion control measures must be implemented to prevent water quality degradation of adjacent waters or wetlands. Silt fencing must be installed and maintained until upland vegetation has become established. X 25) 200 SITE PLAN NOT MET 4/15/2009 PBC Approved per dimensions and setbacks on submitted site plan. Setbacks are measured from the furthest projection of the structure. X 26) 210 Parking NOT MET 4/15/2009 PBC Parking shall be sufficient for standard parking stalls(9 feet by 20 feet)sufficient to access storage units, and handicap parking stalls(12.5 feet by 20 feet)with sufficient maneuvering aisles. Handicap stalls shall be of a smooth surface at level or ramped to entry,located closest to the building entry,and shall be signed with the International Symbol of Access. Screening from adjacent residential properties is required. X 27) 5021 Aquifer Notification Letter NOT MET 4/15/2009 PBC Subject to conditions of Aquifer Notification letter and Recorded Critical Aquifer Recharge Area Title Notification. Applicant shall apply Best Management Practices to all development on site. X Page 4 of 5 CaseConditions..rpt 4/15/2009 Conditions Associated With 4:28:03PM Case #: COM2008-00139 o,$ Permit Condition Status Updated item# Code Title Status Changed By Tag Date By 28) 5019 MCPW Development Requirements NOT MET 4/15/2009 PBC Provisions for surface/subsurface drainage control must be implemented with new construction or development on site and MUST NOT adversely impact adjacent parcels. Under the requirements of Mason County Stormwater Ordinance,either private ditches and drains will meet requirements of the stormwater ordinance or prior approval will be granted to use an existing utility and drainage easement dedicated for that specific purpose. For further information regarding this ordinance and the REQUIREMENT to obtain an ACCESS PERMIT for the installation/construction of a driveway or access connecting from a Mason County Road, Contact the Mason County Public Works Department prior to construction at Ext 450. For any construction which is proposed to be located within 25'of a Mason County road right of way,it is suggested to contact that office to review future planned work which may affect your project. X 29) 1 ENGINEERED STORMWATER PLAN NOT MET 4/15/2009 PBC Subject to requirements of engineered stormwater plan for this project. Applicant shall contact Mason County Public Works engineer Fred Perryman to obtain a Stormwater Operation and Maintenance Covenant which is to be completed and recorded on the subject parcels. A copy of the recorded document shall be provided to Mason County Public Works. x Page 5 of 5 CaseConditions..rpt Mason County Map Output Page Page 1 of 1 Mason Count Ma WOW- bft r E SPRINGWOOD LN / Jft 1 6 r♦ E S IF?WGWOOD CT.� ' t DISCLAIMER AND LIMITATION OF LIABILITY: The data used to make this map have been tested for accuracy,and every effort has been made to ensure that these data are timely,accurate and reliable.However,Mason County LEGEND makes no guarantee or warranty to its accuracy as to labeling,dimensions,or placement or location of any map features contained herein.The boundaries depicted by these data are R0845 F606ral Land$ approximate,and are not necessarily accurate to surveying or engineering standards,and are intended for informational purposes only.Mason County does not assume any legal liability ^�Hlgtrvays !?i City of Shelton or responsibility arising from the use of this map in a manner not intended by Mason County. In no event shall Mason County be liable for direct,indirect,incidental,consequential, Rwars 8 Streems County Boundery JONR) special,or tort damages of any kind,including,but not limited to,loss of anticipated profits pAt0915 Ca►11m�ssion9r Dstnets or benefits arising from use of or reliance on the information contained herein Sections S Lakes ©2006-Mason County 415 N.Sixth Street Townshos i Puget Sound&Malor Lakes Shelton,WA 98584 http://mapmason.co.mason.wa.us/servlet/com.esri.esrimap.Esrimap?ServiceName=amason... 12/2/2008 1937820 MASON CO NA DAVID MCKAYON23h1MRe2'4- $42 00 pages Illllil IIIIN III 1111 I111111 Iilfll IIII 1111 Illll Illy IIIII'�I NI II11111111 illl II11 Return To: TV N�r- ICI V TITLE NOTIFICATION OF AQUIFER RECHARGE AREA, DATE: OWNER NAME: __ . LVc MAILING ADDRESS: _-_ ,�, �rNlt, SL- L-e-41 PARCEL #: Z}-QD I-� 0 C?(--3 _ LEGAL L+ -qoia aI/rg000 L-t DESCRIPTION: i 2"` �L�--""'1 (ASBR.FORM:QUARTERlQUARTER,SECTION,TOWNSHIP,RANGE,PLAT, LOT& BLOCK) NOTICE: This property lies within a Critical Aquifer Recharge Area as defined by Chapter 8.52 Mason County Code. The property was the subject of a development proposal for nN an .�- Z i t�� Lt.iVl 0`�- �`L`) I t 3 appi cation number filed on l) 14''-0 o (date). Restrictions on use or alteration of the property may exist due to natural conditions of the property and resulting regulation. Review of such application provides information on the location of a critical aquifer recharge area and the restrictions on the site. A copy of the plan showing the aquifer recharge area Is attached hereto. GRANTOR(S): LAST fT MI GRANTEE: PUBLIC i TAHJA ENGINEERING, Inc. PO Box 235, Hoodsport, WA 98548 (360) 877-9512 Mason County DCD Planning Department PO Box 279 Shelton, WA 98584 Dwight S. McKay 590 E Island Lake Drive Shelton, WA 98584-7821 (360)426-5975 Large Parcel Stormwater Site Plan (LPSSP) Mason Co. Case No.s PAR2008-00039 Mason Co. Prcl Nos. 42012-21-90003 & 90004 Stormwater Site Plan Narrative Mr. McKay is proposing to develop two commercial properties he owns located off of the Shelton- Springs Road north of Shelton. The two parcels are each over an acre in size and are proposed to be developed with storage buildings and impervious surfaces exceeding 5000 square feet on each of the two properties. Mason County's Stormwater Management Ordinance requires the preparation of a Large Parcel Stormwater Site Plan(LPSSP) for development activities which include in excess of an acre of clearing, or the creation of 5,000 square feet of new impervious surfacing. The Stormwater Site Plan is required to include a Large Parcel Erosion and Sediment Control (ESC) Plan and a Permanent Stormwater Quality Control (PSQC)Plan which includes measures needed to protect neighboring properties and State waters from adverse stormwater runoff impacts. The McKay properties each drain towards the southwesterly corner of each site. Construction sequencing should be initiated with the roughing out of the stormwater ponds designed for the permanent stormwater quality control plan which will provide protection of neighboring properties through the final development of each of the two sites. Directing construction area runoff into the P g pond on each site, and maintaining the two ponds and removing any sediment build up resulting from construction activities should satisfy the Large Parcel Erosion and Sediment Control Plan requirements of the County Stormwater Management Ordinance. This document is intended to provide the necessary documentation required for approval of a Large Parcel Activity associated with clearing in excess of an acre of lightly vegetated land and conversion of the cleared property to a predominantly impervious condition consisting of building roofs and gravel driveways and parking areas. This conversion requires compliance with Stormwater Management Ordinance requirements#1 through#11 in subsections (3)through(13) of Mason County Chapter 14.48 Stormwater Management' Ordinance. The following pages are intended to meet the requirements of the County's Stormwater Management Ordinance narrative ' Mason County Stormwater Management version of Ecology's 1992 Stormwater Management Manual for the Puget Sound Basin File:C:IProjectslMcKayISSP 1 of 7 10/13/2008 TAHJA ENGINEERING, Inc. PO Box 235, Hoodsport, WA 98548 (360) 877-9512 requirements. Plan sheets representing the Stormwater Site Plan and plan design features follow this portion of the required documents. Included in the appendix of this report will also be found supporting StormShed2G printouts which provide the basis for the retention pond sizing and supporting documentation. Also included in the appendix material is a copy of the Operation and Maintenance (O&M) Covenant required by the County to be completed, notarized, and recorded with the County Auditor's Office as part of the LPSSP approval by the County. Minimum Requirement#1: Erosion and Sediment Control The following E&S Control Requirements will be incorporated into the site development activities to the greatest extent practical: E&S Requirement 41: Stabilization and Sediment Trapping. All exposed and unworked soils shall be stabilized by suitable application of BMPs. From October 1 to April 30, no exposed and unworked soils shall remain unstabilized for more than two days. From May 1 to September 30, no exposed and unworked soils shall remain unstabilized for more than seven days. Prior to leaving the site, stormwater runoff shall pass through a sediment pond or sediment trap, or other appropriate BMPs. As indicated in this document's introduction, the first step in the property's developments should be the roughing out of the stormwater retention ponds designed for each site, and the rough grading of the properties to direct all surface runoff to each pond. The ponds are designed to be excavated below the surrounding ground levels and can be expected to intercept runoff from each of the construction areas. The ponds are designed to infiltrate stormwater storm events up to and including a 100 year 24 hour event. E&S Requirement 42: Delineate Clearing and Easement Limits. In the field, mark clearing limits and/or any easements, setbacks, sensitive%ritical areas and their buffers, trees and drainage courses. The attached site plans indicate the general clearing limits and stormwater collection basins. Mr. McKay is intending to reduce the County's required vegetated buffers to half the 20-foot requirement by doubling the required plantings in the buffer strips surrounding each property. These buffer areas should be planted as early as practical during the construction phase of the site development, and should include a grass or clover groundcover vegetation or beauty bark application to protect the surface soils from erosion. The two retention ponds will encompass most or all of the southerly vegetated buffer on each property, but the slopes above the two year storm event water elevation should be planted with grass in addition to the County's planting requirements to provide stabilization of the pond slopes. Only rarely (less the 98% of the time) will the slopes above the 2 year 24 hour event will be submerged, and the ponds are designed to drain themselves in roughly 24 hours. E&S Requirement#3: Protection of Adjacent Properties. Properties adjacent to the project site shall be protected from damage by sediment deposition. The two retention ponds were sized by modeling 24-hour storm events from the 6-month storm size to the 100-year event storm size. All surface runoff from the properties will be eliminated, providing the required protection of adjacent properties. E&S Requirement#4: Timing and Stabilization of Sediment Trapping Measures. Sediment ponds and traps, perimeter dikes, sediment barriers, and other BMPs intended to trap sediment on-site shall be File:C:WrojectslMcKayISSP 2 of 7 10/13/2008 TAHJA ENGINEERING, Inc. PO Box 235, Hoodsport, WA 98548 (360) 877-9512 constructed as a first step in grading. These BMPs shall be functional before land disturbing activities take place. Earthen structures such as dams, dikes, and diversions shall be seeded and mulched according to the timing indicated in Erosion and Sediment Control Requirement#1. The two stormwater retention ponds developed for this stormwater management plan should be roughed out as soon as possible, and the areas surrounding each pond should be graded to deliver stormwater runoff to them to provide runoff treatment as soon as possible. E&S Requirement#5: Cut and Fill Slopes. Cut and fill slopes shall be designed and constructed in a manner that will minimize erosion. In addition, slopes shall be stabilized in accordance with erosion and sediment control requirement#1. The current site development plans do not create any major cut or fill slopes. The two ponds included in this plan are designed with 2:1 (H:V) sideslopes which should be stable when submerged, and should be shallow enough to sustain vegetation. E&S Requirement#6: Controlling Off-Site Erosion. Properties and waterways downstream from development sites shall be protected from damage by erosion due to increases in the volume, velocity, or peak flow rate of stormwater runoff from the project site. The retention ponds designed for the built-out sites eliminates post development surface discharges. The pre-developed site may have had a discharge g p p y of surface stormwater runoff but no point discharge was or is easily discernable, so no developed site point discharges are being promoted in this stormwater control plan. E&S Requirement#7: Stabilization of Temporary Conveyance Channels and Outlets. All temporary on- site conveyance channels shall be designed, constructed and stabilized to prevent erosion from the expected velocity of the peak flow from a two-year, twenty-four hour frequency storm for the developed condition. Stabilization adequate to prevent erosion of outlets, adjacent streambanks, slopes and downstream reaches shall be provided at the outlets of all conveyance systems. Stormwater runoff delivery from driving&parking areas to the retention ponds is intended to be in a sheet flow regime. Roof runoff will either be delivered directly to the retention ponds, or to dispersion pads installed in the perimeter vegetated buffer of each parcel. Parking and driveway area runoff will be sheeted to the retention ponds by grading the site to deliver un-concentrated flows of stormwater runoff to each retention pond. Without a surface discharge from the site for storm events through the 100 year 24 hour event, there should be no surface runoff delivered off the site, or to neighboring properties. E&S Requirement #8: Storm Drain Inlet Protection. All storm drain inlets made operable during construction shall be protected so that stormwater runoff shall not be discharged offsite or be introduced into any fill area without first being filtered or otherwise treated to remove sediment. The McKay development plans require no catch basins, but relies on shallow surface flow and site grading to deliver stormwater runoff to the retention/treatment ponds. E&S Requirement 99: Underground Utility Construction. The construction of underground utility lines shall be subject to the following criteria: (i) No more than five hundred feet of trench shall be opened at one time, unless provisions are made to protect against adverse stormwater impacts. File: C:IProjectsWcKayISSP 3 of 7 10/13/2008 TAHJA ENGINEERING, Inc. PO Box 235, Hoodsport, WA 98548 (360) 877-9512 (ii) Where consistent with safety and space considerations, excavated material shall be placed on the uphill side of trenches. These requirements should be made conditions for project approval and permitting. E&S Requirement#10: Construction Access Routes. (i) Construction vehicle access shall be, whenever possible, limited to one route. Access points shall be stabilized to minimize the tracking of sediment onto public roads. (ii) Wherever construction vehicle access routes intersect paved roads, provisions must be made to minimize the transport of sediment(mud) onto the paved road. If sediment is transported onto a road surface creating a hazard, the roads shall be cleaned immediately, and thoroughly cleaned at the end of each day. Sediment shall be removed from roads by shoveling or sweeping and be transported to a controlled sediment disposal area. Street washing shall be allowed only after sediment is removed in this manner. The site already includes an existing access located off of the Shelton Springs Road which includes an asphalt paved surface. The access driveway is constructed from the relatively clean natural gravels underlying the site and is stable in its present condition. Mr. McKay has expressed his intention of applying a crushed rock or rock chip driving surface on the parking and driving areas of the finished site. The surfacing materials are expected to provide additional runoff treatment to stormwater runoff developed on the site in addition to the treatment/retention of the 6 month 24 hour storm event. E&S Requirement 411: Removal of Temporary BMPs. All temporary erosion and sediment control BMPs shall be removed within thirty days after final site stabilization is achieved or after the temporary BMPs are no longer needed. Trapped sediment shall be removed or stabilized on site. Disturbed soil areas resulting from removal shall be permanently stabilized. Completion of the sites' developments will include excavating the roughed out stormwater retention ponds to their design dimensions and planting of the vegetations recommended in this report, and required by the County. E&S Requirement #12: Dewatering Construction Sites. Trench dewatering devices shall be discharged in a manner that will not adversely affect flowing streams, drainage systems or off-site property. Water discharged from dewatering pumps shall be routed through a sediment pond or trap unless it is clear. The site enjoys highly permeable soils and no deep excavations will be required for site development grading. E&S Requirement#13: Control of Pollutants Other than Sediment on Construction Sites. All pollutants other than sediment that occur on-site during construction shall be handled and disposed of in a manner that does not cause contamination of stormwater. This requirement should be made a condition of permit approval. Construction machinery used in the sites' developments should be maintained to a degree that neither lubricants or fuels are released or spilled within the construction area or elsewhere. File: C:IProjectsWcKayISSP 4 of 7 10/13/2008 TAHJA ENGINEERING, Inc. PO Box 235, Hoodsport, WA 98548 (360) 877-9512 E&S Requirement #14: Maintenance. All temporary and permanent erosion and sediment control BMPs shall be maintained and repaired as needed and in a timely manner to assure continued performance of their intended function. All maintenance and repair shall be conducted in accordance with an approved manual. An Operation and Maintenance (O&M) Covenant form has been prepared for each of the two commercial properties. The main maintenance the stormwater management features are expected to require is the periodic inspection of the ponds to verify that they are functioning in compliance with their design target rates (infiltration rates and storm event water elevations). Water elevations exceeding design parameters should be considered a signal that silt removal and disposal off-site is needed. Silt and sediment removed from the retention ponds should be disposed of at an approved (County permitted) disposal location. Silts and sediments removed from the retention pond dead storage areas of the ponds is not expected to have very high levels of contamination, but should be checked for possible contamination from ruptured tanks or other automotive related contaminants and disposed of accordingly. Minimum Requirement#2:Preservation of Natural Drainage Systems. Natural drainage patterns shall be maintained, and discharges from the site shall occur at the natural location to the maximum extent practicable. The existing site does not exhibit any heavy flow discharge locations to off-site receiving areas. The proposed retention of stormwater precipitation is felt to be a reasonable preservation of pre- developed conditions and drainage patterns. Site soils are found to be a Soil Conservation Service Grove Gravelly Sandy Loam termed excessively drained. Stormwater management of the site includes the development of two stormwater retention ponds which preserve the pre-developed natural drainage system. Minimum Requirement#3: Source Control of Pollution. Source control BMPs shall be applied to all projects to the maximum extent practicable. Source control BMPs shall be selected, designed, and maintained according to an approved manual. This is integral to the stormwater management plan design. Minimum Requirement#4: Runoff Treatment BMPs. All projects shall provide treatment of stormwater Treatment BMPs shall be sized to capture and treat the water quality storm, defined as the six-month, twenty-four hour storm. The first priority for treatment of stormwater shall be to infiltrate as much as possible of the water quality design storm into the ground. The retention pond designs provide for complete retention of the water quality design storm, and storms sized through the 100 year 24 hour event storm. The infiltration rate used in the retention pond modeling is considered to represent half the natural infiltration rate available. Minimum Requirement#S: Streambank Erosion Control. The requirement below applies only to situations where stormwater runoff is discharged directly or indirectly to a stream, and must be met in addition to meeting the requirements in minimum requirement#4, Runoff Treatment BMPs: Stormwater discharges to streams shall control streambank erosion by limiting the peak rate of runoff from individual development sites to fifty percent of the existing condition two-year, twenty- four hour design storm while maintaining the existing condition peak runoff rate for the ten-year, twenty-four-hour and one hundred-year, twenty-four-hour design storms. As the first priority, streambank erosion control BMPs shall utilize infiltration to the fullest extent practicable, only if site File:C:TrojectsWcKayISSP 5 of 7 10/13/2008 TAHJA ENGINEERING, Inc. PO Box 235, Hoodsport, WA 98548 (360) 877-9512 conditions are appropriate and ground water quality is protected. Streambank erosion control BMPs shall be selected, designed, and maintained according to an approved manual. The proposed retention pond designs reduces each sites' discharge to zero, providing erosion and silt protection to downstream properties and compliance with downstream erosion control discharge rates. Minimum Requirement#6: Wetlands. Stormwater discharges to wetlands shall maintain the wetland's natural hydroperiod and flows to the extent needed to preserve or enhance its existing functions and values. Prior to proposing discharge of higher volumes of stormwater to a wetland, alternative discharge, detention, and infiltration practices located in areas outside the wetland shall be evaluated and employed by the project engineer where feasible and practicable. No wetlands have been identified on or near the McKay property. Minimum Requirement#7: Water Quality Sensitive Areas. Where the Mason County commissioners or their designee determine that the minimum requirements do not provide adequate protection of water quality sensitive areas, either on-site or within the basin, more stringent controls shall be required to protect water quality. An adopted and implemented basin plan (minimum requirement#9)may be used to develop requirements for water quality sensitive areas that are tailored to a specific basin. The McKay property is not located in an area requiring a higher degree of protection than the proposed plan provides, nor is it located within a known or adopted basin plan. Minimum Requirement#8: Off-Site Analysis and Mitigation. Downstream Analysis May Trigger Additional Requirements. The project engineer shall provide a detailed qualitative analysis of the flow path of the discharge from the project site to the receiving water. This requirement shall apply to all projects where a drainage and erosion control plan is prepared, including those proposing retention facilities. This analysis shall include flow routing, and provide existing pipe and channel sizes and estimated capacities. In addition, the project engineer shall discuss any known or expected downstream erosion, flooding, or water quality problems, including those that may be caused by interflow from the proposed retention facility. The McKay property receives little or no runoff from adjacent properties. Retention of stormwater runoff and infiltration into the ground is expected to relieve the project from downstream analysis or mitigation requirements. Interflow is expected to roughly match pre-development interflow rates. Minimum Requirement#9: Basin Planning. Basin plan supersedes Manual. If a proposed project is located in a basin or sub basin for which the county has an adopted basin plan, stormwater requirements specifically identified in the basin plan shall take precedence over those provided in this chapter. However, all other elements detailed in this chapter shall continue to apply to such projects. Basin plans are required to be developed according to an approved manual. The McKay property is not located within a known adopted basin plan area. Minimum Requirement#10: Operation and Maintenance. An operation and maintenance schedule shall be provided for all proposed stormwater facilities and BMPs, and the party(or parties)responsible for maintenance and operation shall be identified. An operation and maintenance (O&M)covenant will be required to cover all privately owned and maintained stormwater facilities approved by the director. File: C TrojectsWcKaySSP 6 of 7 10/13/2008 TAHJA ENGINEERING, Inc. PO Box 235, Hoodsport, WA 98548 (360) 877-9512 Mr. McKay, as owner of the completed commercial properties, and subsequent owners will be responsible for operation and maintenance of the stormwater management features. The retention ponds, gutters and downspouts, downspout piping & splash pads and graveled areas should be inspected at a minimum twice each year(in the Fall before the wet season and in the Spring after the wet season), and after any major storm event (more than an inch of precipitation in a 24 hour period). An Operation and Maintenance Covenant will be implemented as required by the County's adopted requirements. Minimum Requirement#11: Financial Liability. Performance bonding, or other appropriate instruments shall be required for all projects to ensure compliance with these standards. The proposed McKay development is a relatively modest development proposal and the O&M Covenant is expected to satisfy this requirement. Variances from these Standards. Variances from these standards may be allowed at the discretion of the director or designee provided that the proponent will substantially meet flow control and water quality goals established by or implicit in these standards. No variances are deemed necessary from the current County Stormwater Management Ordinance requirements. This Stormwater Site Plan and supporting documents have been prepared by myself or under my direct supervision as required under the Stormwater Management Ordinance requirements. I hope this document and supporting elements meet the standards and needs of Mason County and the McKays in permitting and developing their property as they currently intend. Sincerely, Alan A. Tahja, P.E. of WA Attached: Stormwater Site Plan Sheets O&M Covenant StormShed2G Modeling Printouts 1166 30784 4 c�w STER�9 s`SIONAL Y,11 File:C:IProjectsWcKayISSP 7 of 7 10/13/2008 Pr ert i" p Y Line �220' � � —— ——Vegetated Bufrer 4 012-21-00003 1.27 Gres N Buffer Planting Schedule: Quantities per 100 feet ,— (Doubled to reduce buffer to 50%) / / w E P cS 6 Canopy Trees p o2s I c I ti h 12 Understory,Plants N I t p 18 Shrubs , 30'GatetIJ o° tJ / 1 w I � I I b I Prope y Line ...2 6.88' 1 � - Po Floor 120'x 8' — Po Floor 60'x 8' —J P nd Top 132'x 20' — Pond T 72'x 20' 1� I lox2o loch 1 2:1(n:v)5deslopm, b I 1 3'Deep(Incl.1'Freeboard) I C O ty I ,I 12,30 I �I tN25 {y V vl a o o. 1 C, v k`R •S w/ I �o w y 10`F WA o / o I I h7 E S rin wood Lane 00 12x30 12R]0 I I — `Vl 42012 21-00004 1.31 Acres L 1 I o / Property Line -310' 70 h ,w / Pond Top Dimensions 16'x 282' (2:1 SS) ISTER�'9�� 4'x 270'x 3'Deep Retention Pond Q ft' bO O s`stONAL o I N p Conjectural Storage Buildings: 3: I °` Bldg A 8,500 Sqr Ft r- � c� Bldg B 9,240 Sqr Ft W A rA 14 Bldg C 8,550 Sqr Ft N'CID b Bldg D 9,120 Sqr Ft Fsh�lto�S Total- 36,150 Sqr Ft rf SCALE: I"= 100' s j�o\ -pringwood t aQ, I ►- � � 0 25 50 100 \ Oz q w PAR2008-00039 Disperse downspout discharge into vegetated buffer ;y Property Line —220' by way of buried 6"PVC transport pipe&dispersion pad. / _____ 10' b � OF �Asy / / ——� 10'Vegetated Buffer 20' 00003 20' i Lines(Dashed) Pond Notes: j, y IThe pond designed for Prcl.No. o e `pp ��3U784�p �sv� / �v / 5 2 0 10ci0 1 42012-21-90003(Floor Area= 1440 SF) tNi GISTEg �1$ 1 I will accomodate a total building area `SIDNAL E� / 9 up to 19,200 SF N 46 t� I w / 30'Gate 1 I The pond igned for Parcl.No. E� > Is 1 10 42012-21-900 (Floor Area= 1080 SF) b will accomodate a al building area Conjectural Storage Buil ngs: up to 20,000 SF Bldg A 8,500 S r Ft 1 1 I (U �pL Bldg B 9,240 qr Ft I �j Bldg C 8,550 qr Ft 1 iT�d..i s. ss � iz�o e...— Bldg D 9,12 Sqr F I / 25' I Security Fenced Pro erty Line 246.88' 21' Property Boundaries �7 Total— 36,15 Sqr t —— —J 00 10' I I 00004 INN Connecting Driveway a —1 with 12"Dia.x 40' I I n I long corrugated I I Plastic or Metal Pipe I SCALE: V=60' 1 12,V I I W H y N iazs 70' I 0 20 40 60 ; p� C 0 W E az y o 1 G Q o '15c Is 110' �p �[yv� S U C� oo b 0 t I 10'Vegetated Buffer E o_ o / Lines(Dashed) C4 12.30 > .d > Ll o I h / � � — b ❑ iz.w / IT C7 C7 v � a j Direct Gutter Downspouts v L_ 15' into 6"Diameter solid PVC pipes discharging to Rock 1 N----------------------- y° -------- Armored Dispersion Pads / ropert the (F thick)located at discharge end of pipe near retention pond floor bottom. C OG SCALE: 1 0 1 2 3 4 feet a°Ai °D > 20'Top Pond Dimension > w w, Surrounding w 3'Pond Depth(Incl. F Freeboard) w Surrounding y Ground Ground No M ---------------------------------- ----------------- O r ty 100 Yr 10 Yr 2 Yr �ls 24 Hour Storm Event Peak Water Elevations 8'Wide Pond Floor b Pond Notes: Pond Notes: F"o The and designed for Prcl.No. i o p g �1 o Pond slopes and pond floor below 42012-21-90003 will accomodate i the 2 Year 24 Hour Storm Event b `� a total building area up to 19,200 elevation(s)should be planted with c O Sqr Ft. o water tolerant vegetaion. o y The pond designed for Parcl.No. o Silt shall be removed from pond b w 42012-21-90004 will accomodate a1 a floors if and when the ponds do not a total building are up to 20,000 infiltrate/function as designed. N a lT1 Sqr Ft. Parcel No. 42012-21-90003 8'x 180' x 3'Deep Retention Pond ,o 0 n 00 Chain Link SCALE: 1"=4' S (� 0 1 2 3 4 feet Security Fence 16'Top Pond Dimension 2' Surrounding S Z urrounding b y Q, Ground --------- Ground twit '0b --- ---- ---------------------- - ��o 100 Yr <SSl • V es�o4 Buffer Planting Schedule: 10 Yr s`a WA r '' Quantities per 100 feet 2 Yr (Doubled to reduce buffer to 50%) 6 Canopy Trees 4' Wide Pond Floor 12 Understory Plants 3'Pond Depth 1 18 Shrubs (Incl. 1'Freeboard) o c 1Q� 6v �p 3D784 lu Parcel No.42012-21-90004 4'x 290'x 3' Deep Retention Pond RETURN ADDRESS GRANTOR(S)(Last,First,Middle Initial) Dwight S.McKay McKay,Dwight S. 590 Elsland Lake Drive Shelton, WA 98584-7821 GRANTEE; MASON COUNTY DEPARTMENT OF PUBLIC WORKS DECLARATION OF COVENANTS ASSOCIATED WITH PRIVATELY MAINTAINED STORM DRAINAGE FACILITIES Declaration of Covenant In consideration of approval of the development known as Shelton Springs Road Mini Storage,Shelton, WA 98584 relating to real property legally described as follows: Lot 3 of SP#2413 County Assessor's Property Tax Parcel Number 42012-21-90003 The undersigned,as owner(s),covenant and agree that: 1. If at any time Mason County reasonably determines that maintenance or repair work is required to be done to the existing, approved storm drainage facilities installed on the property described above and located outside of any public right-of-way(which will mean repair and or clean out of the existing system only to the same standards as originally installed and approved), the Director of the Department of Public Works shall give the current owners seven days notice that the County intends to perform such maintenance or repairs,or to have them performed by others. If the current owners have not completed or are not diligently pursuing the repair or maintenance of the system and it becomes necessary for Mason County to perform the work, the current owners will assume responsibility for the cost of such maintenance or repair and will reimburse the County within thirty days of receipt of the invoice. Overdue payments will require payment of interest at the current legal rate for liquidated judgments, and any costs or fees incurred by the County, should any legal action be required to collect such payments, will be bome by the parties responsible for said reimbursements. 2. If at any time Mason County reasonably determines that the existing and approved storm drainage system on the property poses a hazard to life and limb,or endangers property,or adversely affects the safety and operations of a public way, due to failure,damage or non-maintenance of the existing on-site storm system,and that the situation is so adverse as to preclude written notice to said owners, the Director of the Department of Public Works may take the measures necessary to eliminate the hazardous situation(which will mean repair or clean out of the existing system only to the same standards as originally installed and approved) provided the Director has first made a reasonable effort to locate said owner before acting. RETURN ADDRESS GRANTOR(S)(Last,First,Middle Initial) Dwight S.McKay McKay,Dwight S. 590 Elsland Lake Drive Shelton, WA 98584-7821 GRANTEE; MASON COUNTY DEPARTMENT OF PUBLIC WORKS DECLARATION OF COVENANTS ASSOCIATED WITH PRIVATELY MAINTAINED STORM DRAINAGE FACILITIES Declaration of Covenant In consideration of approval of the development known as Shelton Springs Road Mini Storage.Shelton, WA 98584 ,relating to real property legally described as follows: Lot 4 of SP#2413 County Assessor's Property Tax Parcel Number 42012-21-90004 The undersigned,as owner(s),covenant and agree that: 1. If at any time Mason County reasonably determines that maintenance or repair work is required to be done to the existing, approved storm drainage facilities installed on the property described above and located outside of any public right-of-way(which will mean repair and or clean out of the existing system only to the same standards as originally installed and approved), the Director of the Department of Public Works shall give the current owners seven days notice that the County intends to perform such maintenance or repairs,or to have them performed by others. If the current owners have not completed or are not diligently pursuing the repair or maintenance of the system and it becomes necessary for Mason County to perform the work, the current owners will assume responsibility for the cost of such maintenance or repair and will reimburse the County within thirty days of receipt of the invoice. Overdue payments will require payment of interest at the current legal rate for liquidated judgments,and any costs or fees incurred by the County, should any legal action be required to collect such payments, will be borne by the parties responsible for said reimbursements. 2. If at any time Mason Counri reasonably determines that the existing and approved storm drainage system on the property poses a hazard to life and limb,or endangers property,or adversely affects the safety and operations of a public way,due to failure, damage or non-maintenance of the existing on-site storm system,and that the situation is so adverse as to preclude written notice to said owners, the Director of the Department of Public Works may take the measures necessary to eliminate the hazardous situation(which will mean repair or clean out of the existing system only to the same standards as originally installed and approved) provided the Director has first made a reasonable effort to locate said owner before acting. TAHJA ENGINEERING, Inc. PO Box 235, Hoodsport, WA 98548 (360) 877-9512 Dwight S. McKay 590 E Island Lake Drive Shelton, WA 98584 (360) 426-5975 StormShed Modeling Parcel No. 42012-21-90003. LPOOLCOMPUTE [Retention Pond] SUMMARY using Puls Start of live storage: 270.0000 ft Event 'Match Q (cfs)jPeak Q(cfs)'i.Peak Stg(ft) [Vol (cf) Vol(acft)'Time to Empty 6 month 0.0039 0.3401 270.0964 1 142.45 0.0033 24.67 2 year 0.0309 F 0.4284 270.4834 785.12 0.0180 24.83 �0 year 0.0665 F 0.5321 271.0000 1821.33 0.0418 1 24.83 1100 year l 0.2725 570 69 j 272.0840 4682.63 0.1075 1 24.83 Summary Report of all Detention Pond Data Event Precip (in) I6 month 2.9000 2 year 4.5000 10 year 6.0000 1100 year;9.0000 BASLIST2 [Un-03] Using [TYPE 1 A] As [6 month] [Dev-03] Using [TYPE 1 A] As [6 month] [Un-03] Using [TYPEIA] As [2 year] [Dev-03] Using [TYPE 1 A] As [2 year] [Un-03] Using [TYPE 1 A] As [10 year] [Dev-03] Using [TYPE 1 A] As [10 year] [Un-03] Using [TYPEIA] As [100 year] [Dev-03] Using [TYPE 1 A] As [100 year] LSTEND Peak Q Peak T Peak Vol Area ' BasinID FEvent (cfs) (hrs) (ac-c� (ac) Method/Loss Raintype Un-03 m 6onth 0.0039 24.00 0.0009 F1.28 SBUH/SCS TYPEIA F I ___F Dev-03 6 0.3596 8.00 0.1380 1.28 SBUH/SCS �TYPEIA month Un-03 2 year 0.0309 24.00 0.0271 1.28 SBUH/SCS �TYPEIA File:C.1Projects1McKayStrmShed Ped 3Basin Printout 1 of 3 10/13/2008 TAHJA ENGINEERING, Inc. PO Box 235, Hoodsport, WA 98548 (360) 877-9512 Dev-03 2 year 1 0.8181 7.83 i 0.2803 1.28 SBUH/SCS TYPEIA j r -------------- [Un-03 !10 year 1 0.0665 17.00 0.0775 j 1.28 SBUH/SCS 'TYPEIA Dev-03 10 year 1.3013 7.83 240 42 1 28 SBUH/SCS 'TYPEIA r-- -r -- Un-03 100 0.2725 F8.17 0.2294 1.28 SBUH/SCS TYPEIA year - 100 r Dev-03 ! ( 2.3 065 7.83 I 0.7256 1.28 SBUH/SCS 'TYPE 1 A Year I F BASLIST [TYPEIA] AS [6 month] DETAILED [Un-03] [Dev-03] LSTEND Record Id: Un-03 Design Method SBUH Rainfall type TYPE IA -_. IHyd Into 10.00 min Peaking Factor-I 484.00 Abstraction Coeff �� 0.20 (Pervious Area (AMC 1) 1.28 ac 'DCIA 0.00 ac Pervious CN 43.82 �DC CN �- 0.00 Pervious TC F 1-5.88 min :DC TC ` 0.00 min j Pervious CN Calc i Description SubArea Sub cn Meadow or Pasture 1.28 ac 65.00 Pervious Composited CN(AMC 2) 65.00 Pervious TC Calc j .Type (- Description Length Slope Coeff Misc TT 'I Sheet Short prairie grass and lawns.:0.15 320.00 ft 4.00% ;0.15004.50 in 15.88 min - Pervious TC 115.88 min Record Id: Dev-03 Design Method I SBUH lRainfall type TYPE IA I Hyd Intv 10.00 min Peaking Factor 484.00 -- Abstraction Coeff 0.20 Pervious Area(AMC 1) 1.28 ac DCIA - 0.00 ac Pervious CN r 81.89 [DC CN 0.00 j Pervious TC F 1.96 min [DC TC 0.00 min - Pervious CN Calc File:C:IProjectsIMcKayStrmShedPrcl3Basin Printout 2 of 3 10/13/2008 TAHJA ENGINEERING, Inc. PO Box 235, Hoodsport, WA 98548 (360) 877-9512 Description SubArea Sub cn Gravel Roads &Parking Lots 0.64 ac 76.00 Impervious surfaces (pavements,roofs, etc) -�0.49 ac 98.00 Open spaces, lawns,parks(50-75%grass) ! 0.15 ac 77.00 Pervious Composited CN(AMC 2) 84.54 j Pervious TC Cale j Type Description Length j Slope Coeff Misc TT Sheet Smooth Surfaces.: 0.011 1320.00 ft r4.00% 0.0110 4.50 in 1.96 min - _ Pervious TC - 1.96 min HYDLIST SUMMARY [6 month out] [2 year out] [10 year out] [100 year out] LSTEND H dID Peak cfs Peak T hrs Peak Vol ac-ft Cont Area ac 6 month out 0.3401 8.00 F0.1380 1.2800 2 year out 1 0.4284 8.33 0.2802 1.2800 10 year out [ 0.5321 8.67-1 0.4242 1 1.2800 F100 year out 0.7569 9.00 0.7256 1.2800 STORLIST [Pond 1] LSTEND Record Id: Pond 1 _ A. lbescrip: �etention Pond Increment �0.10 ft vQY of WA$� (Start El. 1270.0000 ft FNtix El. 1273.0000 ft ,, o Length 1180.0000 ft Width 8.0000 ft Length ss l F.00h:l v Length ss2 2.0000h:1 v _-- [Width ssl 12 OOh:ly Width ss2 2.0000h.Iv �E�s TER�9 ww �SSIONAL DISCHLIST [Infiltration] LSTEND Record Id: Infiltration Descrip: Prototype Structure Increment 10.10 ft Start El. 270.0000 ft IMax El. j 105.0000 ft Infiltration rate 10.0000 in/hr jWP lie(Multip 1.00 i Licensed to: TAHJA ENGINEERING. Inc. File:C.-TrojectsWcKay StrmShed Prcl 3 Basin Printout 3 of 3 10/13/2008 TAHJA ENGINEERING, Inc. PO Box 235, Hoodsport, WA 98548 (360) 877-9512 Dwight S. McKay 590 E Island Lake Drive Shelton, WA 98584 (360) 426-5975 StormShed Modeling Parcel No. 42012-21-90004 LPOOLCOMPUTE [Retention Pond] SUMMARY using Puls Start of live storage: 260.0000 ft Event :Match Q (cfs) ak Q (cfs) Peak Stg(ft) Vol(cf) Vol(acft);Time to Empty 6 month ; 0.0040 1 0.2889 260.1369 159.45 1 0.0037 24.67 2 year 0.0316 0.4232 260.6053 856.03 FO.0197 24.67 10 year 0.0680 0.5673 261.1010 1860.64 0.0427 ' 24.83 100 year 0.2789 0.8463 262.0415 14535 4040 0.1041 24.83 Summary Report of all Detention Pond Data I Event !Precip (in) 6 month 12.9000 2 year 4.5000 10 year 16 0600 100 year;9.0000 BASLIST2 [Un-04] Using [TYPE 1 A] As [6 month] [D-04] Using [TYPE 1 A] As [6 month] [Un-04] Using [TYPE 1 A] As [2 year] [D-04] Using [TYPE 1 A] As [2 year] [Un-04] Using [TYPE 1 A] As [10 year] [D-04] Using [TYPE 1 A] As [10 year] [Un-04] Using [TYPE 1 A] As [100 year] [D-04] Using [TYPE 1 A] As [100 year] LSTEND Peak Q Peak T Peak Vol Area BasinlD[Event (cfs) (hrs) ( (ac-cf) (ac) Method/Loss Raintype �Un-04 month thth 0.0040F24-oo 0.0009 1.31 SBUH/SCS TYPEIA D-04 moth 0.3547 8.00 0.1377 1.31 SBUH/SCS [TYPEIA I I Un-04 2 year76.0316 -F 24.00 0.0277 1.31 SBUH/SCS TYPEIA D-04 2 year 0.8164 F 7.83 0.2818 F 1.31 SBUH/SCS TYPEIA File:C.WrojectsIMcKay StrmShed Prcl4 Basin Printout I of 3 10/13/2008 TAHJA ENGINEERING, Inc. PO Box 235, Hoodsport, WA 98548 (360) 877-9512 I n-04 10year 0.0680 �17.00 �0.0793 _ 1.31 SBUH/SCS ;TYPE 1 A D-04 10 year 1.3078 i 7.83 F0.-4283 jr 1.31 SBUH/SCS 'TYPEIA Un-04 100 0.2789 8.17 0.2348 1.31 [SBUH/SCS TYPEIA year w (D-04 y�� 2.3343 7.83 1 0.7357 1.31 [SBUH/SCS TYPEIA I =- - - --- ----------- --- -- ------- BASLIST [TYPEIA] AS (6 month] DETAILED [Un-04] [D-04] LSTEND Record Id: Un-04 -- - - - - jDesign Method SBUH Rainfall type T TYPEIA j Hyd Intv 10.00 min Peaking Factor 484.00 Abstraction Coeff 0.20 Pervious Area (AMC 1) 1.31 ac DCIA F 0.00 ac Pervious CN 43.82 DC CN 0.00 - - - --------- ---j Pervious TC ( 15.88 min DC TC 0.00 min Pervious CN Cale i Description SubArea Sub cn Meadow or Pasture 1.31 ac 65.00 I Pervious Composited CN(AMC 2) 65.00 Pervious TC Calc Type Description Length j Slope Coeff i M si cF TT Sheet Short prairie grass and lawns.: 0.15 320.00 ft 4.00% 0.1500 4.50 in 15.88 min _ Pervious TC 15.88 min i Record Id: D-04 Design Method I SBUH JRai -fall type j TYPEIA Oyd Intv j 10.00 min Peaking Factor j 484.00 r- �- Abstraction Coeff 0.20 Pervious Area (AMC 1) 1.31 ac DCIA 0.00 ac __ 0.00 Pervious CN 81.37 DC CN Pervious TC F 1.96 min DC TC 0.00 min j Pervious CN Cale j Description SubArea Sub cn File:C:IProjects1McKayStrmShedPrcl4Basin Printout 2 of 10/13/2008 S P ?008 -- 0015 7 WAC 197-11-960 Environmental Checklist ENVIRONMENTAL CHECKLIST(SEPA) Purpose of checklist: The State Environmental Policy Act(SEPA), chapter 43.21C RCW,requires all governmental agencies to consider the environmental impacts of a proposal before making decisions. An environmental impact statement (EIS)must be prepared for all proposals with probable significant adverse impacts on the quality of the environment. The purpose of this checklist is to provide information to help you and the agency identify impacts from your proposal (and to reduce or avoid impacts from the proposal,if it can be done) and to help the agency decide whether an EIS is required. A. BACKGROUND 1. Name of proposed project, if applicable: N/A 2. Name of applicant: Dwight McKay(Cc. Tony Enslow) 3. Address and phone number of applicant and contact person: 590 E Island Lake Dr. Shelton, WA 98584 (360)426-5975 4. Date checklist prepared: March 2009 5. Agency requesting checklist: Mason County Planning Department 6. Proposed timing or schedule(including phasing, if applicable): Start first two buildings within 60 day of permit approval. Remaining buildings will start construction within six months after permit approval. 7. Do you have any plans for future additions, expansion, or further actin itN' related to or connected with this proposal? If yes, explain. There are no known additional plans for future activities connected with this proposal. Instructions for Part 5 Page 1 a. What types of emissions to the air would result from the proposal (i.e., dust, automobile, odors, industrial wood smoke) during construction and when the project is completed? If any, generally describe and give approximate quantities if known. There will be a temporary increase in exhaust emissions to the air from construction equipment. Because the work is primarily being performed in a wet environment, little, if any, construction dust is expected to be generated. b. Are there any off-site sources of emissions or odor that may affect your proposal? If so, generally describe. There are no known sources of emissions or odor that may affect this proposal. c. Proposed measures to reduce or control emissions or other impacts to air, if any: Emissions would be limited to those necessary for project construction and will cease at completion of construction. All equipment will meet current emission standards. 3. Water a. Surface: 1)Is there any surface water body on or in the immediate vicinity of the site (including year-round and seasonal streams, saltwater, lakes,ponds,wetlands)? If yes, describe type and provide names. If appropriate, state what stream or river it flows into. No surface water body is in the immediate vicinity of the site. 2)Will the project require any work over, in, or adjacent to (within 200 feet) the described waters? If yes, please describe and attach available plans. No. 3) Estimate the amount of fill and dredge material that would be placed in or removed from surface water or wetlands and indicate the area of the site that would be affected. Indicate the source of fill material. N/A 4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities if known. No. 5) Does the proposal lie within a 100-year floodplain? If so, note location on the site plan. Instructions for Part 5 Page 4 i _deciduous tree: alder, maple, aspen, other X evergreen tree: fir, cedar, pine, other X shrubs, grass,pasture crop or grain _wet soil plants: cattail, buttercup, bullrush,skunk cabbage, other _water plants: water lily, eelgrass, milfoil, other _other types of vegetation b. What kind and amount of vegetation will be removed or altered? One fir tree, a large quantity of scotch broom and some grass will be removed as a result of this project. c. List threatened or endangered species known to be on or near the site. None known. d. Proposed landscaping,use of native plants,or other measures to preserve or enhance vegetation on the site, if any: See attached stormwater and site planting plan. 5. Animals a. Circle any birds and animals which have been observed on or near the site or are known to be on or near the site: birds: hawk, heron, eagle, songbirds, other: Mammals: deer, bear, elk, beaver, other: Fish: bass, salmon,trout, herring, shellfish, other: b. List any threatened or endangered species known to be on or near the site. None observed. c. Is the site part of a migration route? If so, explain. None observed. d. Proposed measures to preserve or enhance wildlife, if any: i Existing project offers little as far as habitat is concerned. Proposed planting and stormwater system is expected to enhance wildlife habitat. InSt,wCf;ons f-r Dart 5 Page 6 Noise levels will be elevated only during construction. Construction activities will occur during daylight hours within the normal work week. 2)What types and levels of noise would be created by or associated with the project on a short-term or a long-term basis (for example: traffic, construction, operation, other)? Indicate what hours noise would come from the site. Construction-related noise from trucks and other project activities will result in a short-term increase in noise in the immediate vicinity of the project. Equipment noise is expected to temporarily exceed typical noise levels generated by typical activities existing on the site. All work would be performed during daylight hours. 3) Proposed measures to reduce or control noise impacts, if any: N/A 8. Land and shoreline use a. What is the current use of the site and adjacent properties? Current site is a vacant lot. Adjacent properties include a church, a commercial contractor building, an auto body shop and residential homes. b. Has the site been used for agriculture? If so, describe. No. c. Describe any structures on the site. None. d. Will any structures be demolished? If so,what? No. e. What is the current zoning classification of the site? Commercial f. What is the current comprehensive plan designation of the site? Unknown. g. If applicable, what is the current shoreline master program designation of the site? Incfriirfinnc fnr Dwrf � Page 8 i N/A h. Has any part of the site been classified as an "environmentally sensitive" area? If so, specify. Unknown i. Approximately how many people would reside or work in the completed project? None. j. Approximately how many people would the completed project displace? None k. Proposed measures to avoid or reduce displacement impacts, if any: N/A 1. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans,if any: Landowner has worked with adjacent properties picking building colors schemes and aesthetic properties. 9. Housing a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low-income housing. None b. Approximately how many units, if any,would be eliminated? Indicate whether high, middle, or low-income housing. None c. Proposed measures to reduce or control housing impacts, if any: N/A 10. Aesthetics a. What is the tallest height of any proposed structure(s), not including antennas; what is the principal exterior building material(s) proposed? Instructions for Part 5 Page 9 1 13. Historic and cultural preservation a. Are there any places or objects listed on, or proposed for, national, state, or local preservation registers known to be on or next to the site? If so, generally describe. No. b. Generally describe any landmarks or evidence of historic, archaeological, scientific, or cultural importance known to be on or next to the site. N/A c. Proposed measures to reduce or control impacts, if any: N/A 14. Transportation a. Identify public streets and highways serving the site, and describe proposed access to the existing street system. Show on site plans, if any. Access via Shelton Springs Road b. Is site currently served by public transit`' If not, what is the approximate distance to the nearest transit stop? N/A c. How many parking spaces would the completed project have? How many would the project eliminate? Four parking spaces will be made available, none will be eliminated. d. Will the proposal require any new roads or streets, or improvements to existing roads or streets, not including driveways? If so, generally describe(indicate whether public or private). No. e. Will the project use(or occur in the immediate vicinity of)water, rail, or air transportation? If so, generally describe. No. f. How many vehicular trips per day would be generated by the completed project? If known, indicate when peak volumes would occur. Instructions for Part 5 Page 11 ��ao coo 15-7 WAC 197-11-960 Environmental Checklist ENVIRONMENTAL CHECKLIST (SEPA) Purpose of checklist: The State Environmental Policy Act(SEPA), chapter 43.21 C RCW,requires all governmental agencies to consider the environmental impacts of a proposal before making decisions. An environmental impact statement(EIS)must be prepared for all proposals with probable significant adverse impacts on the quality of the environment. The purpose of this checklist is to provide information to help you and the agency identify impacts from your proposal (and to reduce or avoid impacts from the proposal, if it can be done) and to help the agency decide whether an EIS is required. A. BACKGROUND 1. Name of proposed project, if applicable: N/A 2. Name of applicant: Dwight McKay(Cc. Tony Enslow) 3. Address and phone number of applicant and contact person: 590 E Island Lake Dr. Shelton, WA 98584 (360)426-5975 4. Date checklist prepared: March 2009 5. Agency requesting checklist: Mason County Planning Department 6. Proposed timing or schedule (including phasing, if applicable): Start first two buildings within 60 day of permit approval. Remaining buildings will start construction within six months after permit approval. 7. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. There are no known additional plans for future activities connected with this proposal. Instructions for Part 5 Page 1 ' I 8. List any environmental information you know about that has been prepared, or will be prepared,directly related to this proposal. The State Environmental Policy Act(SEPA) Checklist. 9. Do you know whether applications are pending for governmental approvals of other proposals directly affecting the property covered by your proposal? If yes, explain. No,there are no known applications or proposals pending at this time directly affecting the property area covered by this proposal. 10. List any government approvals or permits that will be needed for your proposal, if known. Mason County Building Permit 11. Give brief, complete description of your proposal,including the proposed uses and the size of the project and site. There are several questions later in this checklist that ask you to describe certain aspects of your proposal. You do not need to repeat those answers on this page. (Lead agencies may modify this form to include additional specific information on project description.) The proposed project involves the new construction of five buildings on two parcels: 420122190003 and 420122190004. Each of the five buildings will have the similar purpose of being individual locked personal storage buildings. Construction equipment for the construction of the storage buildings will include standard construction equipment. Each of the five personal storage buildings will be designed and built to local municipal codes and standards. Buffer yards and stormwater gardens will be implemented and maintained as per local standards. 12. Location of the proposal. Give sufficient information for a person to understand the precise location of your proposed project, including a street address, if any, and section, township, and range, if known. If a proposal would occur over a range of area,provide the range or boundaries of the site(s). Provide a legal description, site plan,vicinity map, and topographic map, if reasonably available. While you should submit any plans required by the agency,you are not required to duplicate maps or detailed plans submitted with any permit applications related to this checklist. The proposed project resides on two parcels: 420122190003 and 420122190004. To arrive at proposed project site, drive west along Shoelton Springs Rd,past Shelton High School; turn right into the Shelton Presbyterian Church. Proposed project is adjacent to the Church Property. See attached Overview Map for location details. B. ENVIRONMENTAL ELEMENTS Instructions for Part 5 Page 2 a. What types of emissions to the air would result from the proposal (i.e., dust, automobile,odors, industrial wood smoke) during construction and when the project is completed? If any,generally describe and give approximate quantities if known. There will be a temporary increase in exhaust emissions to the air from construction equipment. Because the work is primarily being performed in a wet environment, little, if any,construction dust is expected to be generated. b. Are there any off-site sources of emissions or odor that may affect your proposal? If so, generally describe. There are no known sources of emissions or odor that may affect this proposal. c. Proposed measures to reduce or control emissions or other impacts to air, if any: Emissions would be limited to those necessary for project construction and will cease at completion of construction. All equipment will meet current emission standards. 3. Water a. Surface: 1) Is there any surface water body on or in the immediate vicinity of the site(including year-round and seasonal streams, saltwater, lakes,ponds,wetlands)? If yes,describe type and provide names. If appropriate,state what stream or river it flows into. No surface water body is in the immediate vicinity of the site. 2)Will the project require any work over,in, or adjacent to (within 200 feet)the described waters? If yes, please describe and attach available plans. No. 3) Estimate the amount of fill and dredge material that would be placed in or removed from surface water or wetlands and indicate the area of the site that would be affected. Indicate the source of fill material. N/A 4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities if known. No. 5) Does the proposal lie within a 100-year floodplain? If so, note location on the site plan. Instructions for Part 5 Page 4 1. Earth a. General description of the site (circle one) Flat, oiling, hilly, steep slopes, mountainous, other . . . . . . b. What is the steepest slope on the site(approximate percent slope)? The project site is flat(less than 5 percent slope). c. What general types of soils are found on the site(for example, clay, sand,gravel,peat, muck)? If you know the classification of agricultural soils, specify them and note any prime farmland. General soil composition is believed to be gravel/artificial fill material. d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. There are no indications of unstable soil in the area of the proposed project. e. Describe the purpose,type, and approximate quantities of any filling or grading proposed. Indicate source of fill. Since the proposed site slope is generally flat, filling and grading will be minimal. f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe. Due to the poor soil quality and flat grade, erosion is anticipated to occur from the project erosion during construction is expected to be minimal. Post construction,buffer yards and stormwater gardens will be implemented and maintained. g. About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? Approximately 15-20%of the site area will be covered by non permeable building surfaces. h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any: Best management practices(BMPs)will be used throughout the construction process. 2. Air Instructions for Part 5 Page 3 _deciduous tree: alder, maple, aspen, other X evergreen tree: fir, cedar,pine, other X shrubs, grass,pasture crop or grain _wet soil plants: cattail, buttercup,bullrush,skunk cabbage, other _water plants: water lily, eelgrass, milfoil, other _other types of vegetation b. What kind and amount of vegetation will be removed or altered? One fir tree, a large quantity of scotch broom and some grass will be removed as a result of this project. c. List threatened or endangered species known to be on or near the site. None known. d. Proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on the site, if any: See attached stormwater and site planting plan. j 5. Animals a. Circle any birds and animals which have been observed on or near the site or are known to be on or near the site: birds: hawk,heron, eagle, songbirds, other: Mammals: deer,bear, elk,beaver, other: Fish: bass, salmon,trout, herring, shellfish, other: b. List any threatened or endangered species known to be on or near the site. None observed. c. Is the site part of a migration route? If so, explain. None observed. d. Proposed measures to preserve or enhance wildlife, if any: Existing project offers little as far as habitat is concerned. Proposed planting and stormwater system is expected to enhance wildlife habitat. Instructions for Part 5 Page 6 Unknown 6) Does the proposal involve any discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge. No. b. Ground: 1) Will ground water be withdrawn, or will water be discharged to ground water? Give general description,purpose, and approximate quantities if known. No groundwater will be withdrawn or discharged as part of this proposal. 2) Describe waste material that will be discharged into the ground from septic tanks or other sources,if any(for example: Domestic sewage; industrial, containing the following chemicals. . . ; agricultural; etc.). Describe the general size of the system,the number of such systems, the number of houses to be served (if applicable), or the number of animals or humans the system(s) are expected to serve. No waste material will be discharged into surface or groundwater. c. Water runoff(including stormwater): 1) Describe the source of runoff(including storm water) and method of collection and disposal, if any (include quantities, if known). Where will this water flow? Will this water flow into other waters? If so, describe. All water will be contained and treated on site. See engineered stormwater plan attached. 2) Could waste materials enter ground or surface waters? If so,generally describe. There is a low risk that contaminants may be introduced into surface water from spills associated with construction activities, such as the use of a barge requiring fuel, oil, and/or lubricants. d. Proposed measures to reduce or control surface, ground, and runoff water impacts, if any: In order to minimize impacts from construction activities,BMPs and Conservation Measures would be implemented. See attached stormwater site plan. 4. Plants a. Check or circle types of vegetation found on the site: Instructions for Part 5 Page 5 Noise levels will be elevated only during construction. Construction activities will occur during daylight hours within the normal work week. 2) What types and levels of noise would be created by or associated with the project on a short-term or a long-term basis (for example: traffic, construction, operation, other)? Indicate what hours noise would come from the site. Construction-related noise from trucks and other project activities will result in a short-term increase in noise in the immediate vicinity of the project. Equipment noise is expected to temporarily exceed typical noise levels generated by typical activities existing on the site. All work would be performed during daylight hours. 3) Proposed measures to reduce or control noise impacts, if any: N/A 8. Land and shoreline use a. What is the current use of the site and adjacent properties? Current site is a vacant lot. Adjacent properties include a church, a commercial contractor building, an auto body shop and residential homes. b. Has the site been used for agriculture? If so,describe. No. c. Describe any structures on the site. None. d. Will any structures be demolished? If so,what? No. e. What is the current zoning classification of the site? Commercial f. What is the current comprehensive plan designation of the site? Unknown. g. If applicable, what is the current shoreline master program designation of the site? Instructions for Part 5 Page 8 6. Energy and natural resources a. What kinds of energy(electric, natural gas, oil,wood stove, solar)will be used to meet the completed project's energy needs? Describe whether it will be used for heating, manufacturing, etc. Electricity will be used and metered on site for lighting use only. b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe. No. c. What kinds of energy conservation features are included in the plans of this proposal? List other proposed measures to reduce or control energy impacts, if any: Compact Fluorescent Bulbs are proposed to be used in addition to meeting code requirements in an effort to conserve energy. 7. Environmental health a. Environmental health: Are there any environmental health hazards, including exposure to toxic chemicals, risk of fire and explosion,spill,or hazardous waste, that could occur as a result of this proposal? If so, describe. Yes. Environmental health hazards could result from a spill of fuel and/or oil from operating equipment or from equipment accidents. Hazards would be limited to those encountered during construction and would be controlled through project construction plans, as well as the implementation of BMPs and health and safety plans. 1)Describe special emergency services that might be required. There are no special emergency services required for this project. Hazards would be limited to those encountered during construction and will be controlled through project construction plans and health and safety plans. 2) Proposed measures to reduce or control environmental health hazards, if any: Hazards would be limited to those encountered during construction. Workers will be properly trained for work at the site;proper construction methods and equipment will be employed. b. Noise: 1)What types of noise exist in the area which may affect your project (for example: traffic, equipment, operation, other)? Instructions for Part 5 Page 7 N/A h. Has any part of the site been classified as an "environmentally sensitive" area? If so, specify. Unknown i. Approximately how many people would reside or work in the completed project? None. j. Approximately how many people would the completed project displace? None k. Proposed measures to avoid or reduce displacement impacts, if any: N/A 1. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any: Landowner has worked with adjacent properties picking building colors schemes and aesthetic properties. 9. Housing a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low-income housing. None b. Approximately how many units, if any, would be eliminated? Indicate whether high, middle, or low-income housing. None c. Proposed measures to reduce or control housing impacts, if any: N/A e 10. Aesthetics a. What is the tallest height of any proposed structure(s), not including antennas; what is the principal exterior building material(s) proposed? Instructions for Part 5 Page 9 20-25' metal exterior, painted with the counsel of adjacent church properties. b. What views in the immediate vicinity would be altered or obstructed? None c. Proposed measures to reduce or control aesthetic impacts, if any: N/A 11. Light and glare a. What type of light or glare will the proposal produce? What time of day would it mainly occur? N/A b. Could light or glare from the finished project be a safety hazard or interfere with views? No. c. What existing off-site sources of light or glare may affect your proposal? None. d. Proposed measures to reduce or control light and glare impacts, if any: N/A 12. Recreation a. What designated and informal recreational opportunities are in the immediate vicinity? None. b. Would the proposed project displace any existing recreational uses? If so, describe. No. c. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be provided by the project or applicant, if any: N/A Instructions for Part 5 Page 10 13. Historic and cultural preservation a. Are there any places or objects listed on, or proposed for, national, state, or local preservation registers known to be on or next to the site? If so, generally describe. No. b. Generally describe any landmarks or evidence of historic, archaeological, scientific, or cultural importance known to be on or next to the site. N/A c. Proposed measures to reduce or control impacts, if any: N/A 14. Transportation a. Identify public streets and highways serving the site, and describe proposed access to the existing street system. Show on site plans, if any. Access via Shelton Springs Road b. Is site currently served by public transit? If not,what is the approximate distance to the nearest transit stop? N/A c. How many parking spaces would the completed project have? How many would the project eliminate? Four parking spaces will be made available, none will be eliminated. d. Will the proposal require any new roads or streets, or improvements to existing roads or streets, not including driveways? If so, generally describe (indicate whether public or private). No. e. Will the project use (or occur in the immediate vicinity of) water, rail, or air transportation? If so, generally describe. No. f. How many vehicular trips per day would be generated by the completed project? If known, indicate when peak volumes would occur. Instructions for Part 5 Page 11 2-3 daily maximum g. Proposed measures to reduce or control transportation impacts, if any: None 15. Public services a. Would the project result in an increased need for public services (for example: fire protection, police protection, health care, schools, other)? If so, generally describe. No. b. Proposed measures to reduce or control direct impacts on public services, if any. N/A 16. Utilities a. Circle utilities currently available at the site: ectrici , natural gas,water, refuse service telephon , sanitary sewer, septic system, other. b. Describe the utilities that are proposed for the project, the utility providing the service, and the general construction activities on the site or in the immediate vicinity which might be needed. Electricity will be provided by PUD # 3 and telephone service by a suitable provider. C. SIGNATURE The above answers are true and complete to the best of my knowledge. I understand that the lead agency is relying on them to make its decision. Signature............. . .. .....4.?..1..'.J.. . ......................................................................... G^�Date Submitted: ......................................`t. ... ............................................................................................ Instructions for Part 5 Page 12 TAHJA ENGINEERING,Inc. PO Box 235, Hoodsport, WA 98548 r r (360) 877-9512 Mason County DCD Attention: Pam Bennett-Cumming MASON. CQ.UN-" Robert Fink Barbara Atkins PO Box 279 Shelton, WA 98584 Dwight McKay 590 E Island Lake Dr. Shelton, WA 98584 RE: Commercial Site Development Review Comments Mason Co. Case No.s COM2008-00139,00140, 00141,00142,00143, & SEP2008-00157 Mason Co. Prcl No. 42012-21-90003 Pam, Bob& Barbara Enclosed please find a copy of the County's review comments regarding the Dwight McKay commercial property development being pursued at the Dwight McKay property located on the Shelton-Spring Road just north of Shelton. The first comment regarding Mason County Development Regulations indicates that because of the buffer yard reduction request,plant densities will be required to be doubled as a result of Mr. McKay's request that the buffer requirements be reduced from 20-feet to 10-feet. Plan sheets 1 &3 of my drawings include a note indicating that the planting densities are proposed to be doubled as required. The next comment in the next paragraph indicates"You will need to configure your development such that the buildings, accesses to and around the buildings, and your stormwater features,fit within the portions of your site not already encumbered by your buffer yards, which you have already reduced to half the standard size." The site plans I prepared for this proposed development were laid out to conform to driveway width requirements,building separations and other pertinent site restrictions. The stormwater retention ponds have been intentionally located inside the perimeter buffers as has been allowed by the County for the past several years. Nowhere in the development regulations is it indicated that mitigation features such as stormwater management features are not allowed inside a buffer area. The plantings required in the buffer areas which include stormwater ponds will not interfere with the pond's functions, and the ponds do not interfere with planting vegetation on the ponds' sideslopes. Plan sheet 3 (cross section view through ponds) shows plants planted above the 10-year stormwater pond water elevation. This depth of water(10 year storm) is very infrequent and of short duration so is not expected to have a detrimental affect on the vegetation growing above this elevation. Water tolerant plans could be installed in the ponds' File:C:TrojectsWcKaylRm Rej Rspnse 1 of 2 12/17/2007 t ' TAHJA ENGINEERING, Inc. PO Box 235, Hoodsport, WA 98548 (360) 877-9512 bottoms, or the pond floors may be allowed to simply vegetate themselves with grass or clover. Mason County's Resource Ordinance in its definitions section states"Permitted development and activities within buffers depend on the type of critical area or resource land the buffer is protecting". The construction of a relatively shallow pond with vegetated sideslopes inside the required buffers should be considered an appropriate and allowed use of the buffer area. The stormwater retention ponds will not diminish the effectiveness of the required screening vegetation. Mr. McKay and I feel requiring Mr. McKay to locate the stormwater retention ponds outside of the already required buffer areas is an unnecessary taking of his property. The County review letter indicates a disagreement between the site plan I prepared for proposed property development and a plan Mr. McKay delivered to the County separately. My plan sheet#2 includes a note regarding pond sizing. The note indicates the maximum building square footage the ponds will accommodate on each property parcel. So long as Mr. McKay's plans do not exceed the building square footages indicated on my plans, I feel I can support relocating and/or resizing the building provided they comply with my pond sizes and other County requirements. The last item in the review letter indicates an example of what the County feels is an inappropriate response to a SEPA Checklist item. The Stormwater Site Plan(SSP) I prepared for Mr. KcKay's property contained Erosion and Sediment Control recommendations and requirements. The main interest I have in writing this response is in regard to your requiring that the stormwater retention ponds be re-located outside of the perimeter buffer areas. We feel Mr. McKay is being required to make a change to his proposal not supported by County regulations,and do not intend to make that requested change. If you continue to feel Mr. McKay may not locate his stormwater retention ponds inside the vegetated buffer areas,please let us know so that we may appeal your decision to the next higher authority. Sincerely, t AA.tja, P. . cc: D McKay Enclosed: County Project Review Letter Copy of Original SSP Plan Sheets File:C:IProjectsWcKaylRm Rej Rspnse 2 of 2 12/17/2007