10122 7TH AVE SE 2018-02-12 - Laserfiche WebLink

•�� Erosion Control Notes: EX.CB EX.CB 1. The contractor shall provide periodic street cleaning to remove any sediment tracked off the site. E 2. The contractor shall perform routine inspection and maintenance of all installed erosion and sedment BMP C105-INSTALL control BMPs,especially after storms CONSTRUCTION ENTRANCE PARKING ROCK PAD 3. Appropriate measures shall be taken to stop sediments from entering waterways if the proposed SPORT COURT COE STD.DWG.:201 BMPs fail. BMP C233-TEMPORARY SILT I 4. Bare and/or disturbed soils shall remain uncovered and/or unstabilized for no more than 2 days from FENCE COE STD.DWG.:214 PP 0 BMP C123-PLASTIC COVERING &BMP C103-HIGH VIS.FENCE October 1 through April 30,and for no more than 7 days from Mayl through September 30. 134.00' / iA c.,„_.,'-.... �'_.., ��"---‘'--‘ -- "4'-��".4'Th^ ' N'"---1'-\^'�� ^Illi Inspection and Monitoring: 5'PLANTER • • -In7 All BMPs shall be inspected,maintained,and repaired as needed to assure continued performance of C 0 • 1 their intended function.Site inspections shall be conducted by a person who is knowledgeable in the ( 2%SLOPE15'MIN ' 0 0 0 0 I I principles and practices of erosion and sediment control.The person must have the skills to I)assess ( TEMP.STOCK PILE ) Q0 0 the site conditions and construction activities that could impact the quality of stormwater,and 2) 0 _ 0 1 re te w w assess the effectiveness of erosion and sediment control measures used to control the quality of 44 F- -'. w stormwater discharges. e�q-1 �� EX.WATER � � Seasonal Work Limitations: \ METER /yIN-1' I I) �r��r�1 1 From October 1 through April 30,clearing,grading,and other soil disturbing activities shall only be / LU / �'T� (E)WATER co permitted if shown to the satisfaction of the local permitting authority that silt-laden runoff will be //// //// � �.l �_ _ prevented from leaving the site through a combination of the following: 77/ w� w� / I a. Site conditions including existing vegetative coverage,slope,soil type,and proximity to surface C ,:,i1, a waters;and o �^ -C LAWN o b. Limitations on activities and the extent of disturbed areas;and ^ / o o / // 0 7 c. Proposed erosion and sediment control measures. / / CJ aye CI / 0 �./_ ^ L ( %PROPOSED / PROPOSED / 1,n-oral�'• W The following activities are exempt from the seasonal clearing and grading limitations: `r BUILDING / BUILDING FLOOR ///" / //�j // FLOOR , > I. Routine maintenance and necessary repair of erosion and sediment control BMPs; EL.106.9' ELEVATION ELEVATION %—_ „ f _„ (E)SEWER _ 2. Routine maintenance of public facilities or existing utility structures that do not expose the soil or \\ / 107.5' 107.5' I result in the removal of the vegetative cover to soil;and 20.90' 92.10' 21' 3. Activities where there is one hundred percent infiltration of surface water runoff within the site in S 24' 22' 22' 24' approved and installed erosion and sediment control facilities. ( // // // �,�i _ _(E)GAS f� S: b C LAWN /_ /! /!/ ! //�// //! ,`�f�� — ~ Erosion control BMPs Maintenance; n sediment control BMPs shall be maintained and repaired ��T� 1. All temporary and permanent a os o and P / 6' LAWN LAWN �/ as needed to assure continued performance of their intended function.Maintenance and repair shall ��- ��- -'�--L��-'��'`..., ��- v� e be conducted in accordance with the BMP specifications. 134.00' 2.2. All temporary erosion and sediment control BMPs shall be removed within 30 days after final site 20 0 10 20 40 ¢ stabilization is achieved or after the temporary BMPs are no longer needed. - I o 3. Trapped sediment shall be removed or stabilized on site.Disturbed soil resulting from removal of <n BMPs or vegetation shall be permanently stabilized w X.CB ( IN FEET ) 1 inch = 20 ft. BMP C220 PROTECT DOWN STREAM I.E.S.C. LEGEND INLETS WITH1 PERFORM MAINTENANCE IN ACCCROANCE WITH STANDARD SPECIFICATION 8-01.3(13). STORM DRAIN INLET PROTECTION I GRATE 5'MAX. TRIM GEOTEXTILE 2.SIZE TME BELOW GRATE INLET OENLE(BG D)FOR THE STORM WATER STRUCTURE IT WILL SERVICE 0 `-/ 0 `- I FRAME �■„""`v OVERFLOW BYPASS 3.THE BGID SHALL HAVE A BUILT-IN HIGH-FLOW RELIEF SYSTEM(OVERFLOW BYPASS). 0 Ai A.THE RCTED MA SYSTEM MUST ALLOW REMOVAL OF THE SCID WITHOUT SPIWNG THE C Stabilized Construction Entrance Exit PER COE STD. DWG.: 201 COLECTEDMATENAL 0 ^ O EXISTING IMPERVIOUS AREAS: , SEDIMENT AND DEBRIS GRATE c 51 RETRIEVAL SYSTEM EXISTING SINGLE FAMILY STRUCTURE: 2,000 SF EXISTING DRIVEWAY 1,240 SF -v---...----.-----..----.. SILT FENCE PER COE STD. DWG.: 214 — -------------- — — TOTAL EXISTING IMPERVIOUS AREAS: 3,240 SF $ \ —1 FILTERED III WATER \, Soil Amendment: PROPOSED IMPERVIOUS AREAS: _ _ DUPLEX STRUCTURE: 2,960 SF OVERFLOW BYPASS The area where soils have been disturbed, the soil shall be amended according GEDTEXT LE to BMP 12.20 - options 1 and 2 • PPROVED PROPOSED DRIVEWAY 2,091 SF ` See the project Stormwater Management Questionnaire PUO ORKS DEP' =�L� ENT TOTAL IMPERVIOUS AREAS: 5,051 SF _ —.4 NOT TO SCALE NOT TO SCALE By �' STORM DRAIN INLET PROTECTION ��'I TOTAL NEW ADDED IMPERVIOUS AREA: 1,811 SF — DAT Ga CITY OF EVER- REVIEWED FOR PERMIT OWNER/APPLICANT/CONTACT: MAHER WELAYE P.E. SER WF q� /� SENA DUPLEX EROSION CONTROL PLAN 15516- 56Th AVE W P SENA INVESTMENT LLC EDAIONIA WA 98026 y'� .. ” 10122 7TH AVE SE,EVERETT, (206)816-0455 /ft 4 WA 98036-4704 �� ' I SITE ADDRESS DRAM BY M.W. DATE 01/31/2016 ,10B HO. 16-001 347-803-9795 °` 10122 7TH AVE. SE M .BY w•w DATE 02/14/20162I itt I (b 04.,ou EVERETT, WA 98036 CHEa®BY M.w. SCALE 1•-20' STz a6.z )