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HomeMy WebLinkAboutBLD2019 SFR Construction Stormwater Pollution Plan - BLD Plot / Site Plans - 1/25/2018S30 I. V I,0 7\321 193HS 0-1.50-81. :31WN WO 1.90-81. :103f'0?Jd :03SIA32J 81;01.'81.OZ :a1Ya NM 3Z02I N 21 £6S SSV19nOa "IA1 :NMY2Ja 9nVH 'r 1133NION3 N31:IfWW 'N 2i3NJIS3a CLIENT: JASON ZINK PO BOX 2483 BELFAIR, WA 98528 CONTACT: JASON ZINK PHONE: (360)440-4368 SHEET TITLE: COVER SHEET AND OVERALL SITE PLAN ZINK RESIDENCE w'IV � 4, / . ' 4 ;4' .0e r, 4f8SVYi° % aa'£'Sj r :ia f kfis1,4t fetid <w°kwwa e f Y: ;V• i DiYY a.,(�. • ENGINEERING • L L C CIVIL ENGINEERS N SURVEYORS N LAND PLANNERS Phone: 253-857-5454 N Fax: 253-509-0044 N info@contourpllc.com Mailing Address: P.O. 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W* •4 W `E' W/ Wd• 1 W W W W W W/ W 4. W 4. * .. 4, / •4 4, * V• W W •. / W * .}• •Y 4 , W W W 4. W d✓ W W W •4 Y W •Y W W * W J *• * / / R=25' MINIMUM 12" MIN. DEPTH OF 4" TO 8" QUARRY SPALLS C1 / / / ZINK RESIDENCE A PORTION OF SECTION 13, TOWNSHIP 21N, RANGE 2, W.M., GRAPEVIEW, MASON COUNTY, WASHINGTON Elm mot -A-i- I /E SEPTIC DRAINFIELDSI/ / i / // 7 / / / mil ) *Et NPR ism, Mill !NI* W 4' - 4• '. -I. -•, •4 no •-••4 * W W W? W * W j •Y --wit Ts I.-- W '!;' W W N W •Y i' W W •Y * * 4'f W 4. * W 7 * W W j/ W W W W •j•/' ~ W W W / W W W W p4 W 4' J. i• •Y * r W W + • W W W •4 4' f W * * f W 4,I `W W W 4' W W W N W i W W •{• * W 4 W * • W W * I W W i* •4 4. 4 f 4, 4. V' •4f VEGETATED STRIP BMP C102 j. % •4 W * i * W W{ * W W W W W * W W / •4 * ' i* 4, •4 4, W W •r •Y / W W W W / W W W 4 1 W W W H• * W L• •4 W • IW •4 4. 4 * * 4, W W 4, 4. i 44, 4, * W W * * IW Y 74.4.4 * 4, d{ 4, .4. Y'WYW W/ 4' 4' 4' 4'W �/ W W WI••Y•••r.i J 4' W W jY 4. t i/ t• I J --I"--i-/ . .f % T meiJ-� / J / / /` 7 / / / / j / t t E I / ' / / / PROVIDE FULL WIDTH OF INGRESS/EGRESS AREA CONSTRUCTION ENTRANCE NOT TO SCALE GEOTEXTILE FABRIC ADAPTER SKIRT 48" RETRIEVAL STRAP 36" SEDIMENT ACCUMULATION INLET PROTECTION NOTES: 1. FILTERS SHALL BE INSPECTED AFTER EACH STORM EVENT AND CLEANED OR REPLACED WHEN 1/3 FULL. 2. ALL CATCH BASINS WITHIN 500' DOWNSLOPE OF PROJECT SITE SHALL INSTALL INLET PROTECTION, AS WELL AS ANY OTHER CATCH BASINS THAT COULD POSSIBLE RECEIVE RUNOFF FROM THE CONSTRUCTION SITE SHALL HAVE INLET PROTECTION INSTALLED AND MAINTAINED OVERFLOW (TO BYPASS PEAK STORM VOLUMES) ) / / t / V V / / / / / r % • / r / / / / THIS IS NOT A SURVEY, TOPOGRAPHICAL INFORMATION SHOWN HERE PER AVAILABLE LIDAR. f ' - lin 11111.1i 1=1 117 111= E f I / / I / // /f/ / / / V i W W W W +. W W 4• Mir 4 * W rt, 4, 1 W W! W ,i.•4 W W / W 4. •4 * • . 4** 4.- 4.r * 7 4,11 * '47 4' W W •W 4, •,/ N 4, W W ;4, * 4 .4 4, W W WI/ W W W / W W 4. W W Vr' W W W W 4. W W W i W 4. W 4. W J• W W W r W 1Y * i W W J W • / J ' / I f V /� / - - j%- .71_J_ -/ CATCH BASIN PALLS 24" INLET PROTECTION NOT TO SCALE 7 - -jW 4111191014./ W * *1 4' 4. W/ W W * * W r 4,W W W * W * W iV * * 1 4, W' 4. 4.*/ * * * J 4. 4. W 4. 4. �f • * 4' 4, •4 le 4. •, / // 1 /- / / 1 / / MULCHING NOTES / • 4 W f f * •' 1* W •4 WS W W W i W i W W W rW W W I W W i W W •V 4. \ \W 4- i • \ 1*.%**41. W \ 4 4, l j * 4, •4 lW WM e, W \ W • \ •Y ••1 le W; W l I 1 I 4 * 7 1'V W , W / W 1 •' W - 1 I**1 • IW W i *' .4. '1 • X, I W�25.0 WE'W W 1 I •Y k N 4. ; • W CD 4" J 4. t11 W U W f * .ti• Z •Y/ I 6 `CO W W a. fW W I- W • / 4, % W (I- 4,y) I*8*' `4 W •4 W j , W• iW Q W f { W I W W / W W V. 4- ,W •Y W(j W V• W i 1 W AlkW W W •Si W W W W- / W W W W W i 4, •4 W W W W W W •4 W /W W W W /W •Y W W •G W W / I / 1. MULCH MATERIALS USED SHALL BE STRAW OR HAY, AND SHALL BE APPLIED AT THE RATE OF 75-100 POUNDS PER 1000 SQ. FT. (APPX 2" THICK) AND SHALL BE FREE FROM UNDESIRABLE SEED AND COARSE MATERIAL. 2. MULCHES SHALL BE APPLIED IN ALL AREAS WITH EXPOSED SLOPES GREATER THAN 2:1. 3. MULCHING SHALL BE USED IMMEDIATELY AFTER SEEDING OR IN AREAS WHICH CANNOT BE SEEDED BECAUSE OF THE SEASON. 4. ALL AREAS NEEDING MULCH SHALL BE COVERED BY NOVEMBER 1. SEEDING NOTES w 1. SEED MIXTURE SHALL BE AS APPROVED BY THE COUNTY AND SHALL BE APPLIED AT THE RATE. RECOMMENDED BY THE SUPPLIER. SEED BEDS PLANTED BETWEEN MAY 1 AND OCTOBER 31 WILL REQUIRE IRRIGATION AND OTHER MAINTENANCE AS NECESSARY TO FOSTER AND PROTECT THE ROOT STRUCTURE. 2. FOR SEED BEDS PLANTED BETWEEN OCTOBER 31 AND APRIL 30, ARMORING OF THE SEED BED WILL BE NECESSARY. (E.G., GEOTEXTILES, JUTE MAT, CLEAR PLASTIC COVERING). 3. BEFORE SEEDING, INSTALL NEEDED SURFACE RUNOFF CONTROL MEASURES SUCH AS GRADIENT TERRACES, INTERCEPTOR DIKES, SWALES, LEVEL SPREADERS AND SEDIMENT BASINS. 4. THE SEEDBED SHALL BE FIRM WITH A FAIRLY FINE SURFACE, FOLLOWING SURFACE ROUGHENING. PERFORM ALL OPERATIONS ACROSS OR AT RIGHT ANGLES TO THE SLOPE. 5. FERTILIZERS ARE TO BE USED ACCORDING TO SUPPLIER'S RECOMMENDATIONS. AMOUNTS USED SHOULD BE MINIMIZED, ESPECIALLY ADJACENT TO WATER BODIES AND WETLANDS. FILL SPECIFICATION FILL MATERIAL SHALL NOT CONTAIN PETROLEUM PRODUCTS, OR SUBSTANCES WHICH ARE HAZARDOUS, DANGEROUS, TOXIC, OR WHICH OTHERWISE VIOLATE ANY STATE, FEDERAL, OR LOCAL LAW ORDINANCE, CODE, REGULATION, RULE, ORDER, OR STANDARD. ONLY EARTH MATERIAL SHALL BE PLACED IN FILLS. MIN TESC LEGEND FILTER FENCE l WORK AREA/CLEARING _ / LIMITS/DISTURBING LIMITS BMP C105: 'STABILIZED CONSTRUCTION ENTRANCE' INLET PROECTION INSERT, IP SEE BMP C220: STORM DRAIN INLET PROTECTION PLASTIC COVERING NOTES 1. PLASTIC SHEETING SHALL HAVE A MINIMUM THICKNESS OF 6 MILS AND SHALL MEET THE REQUIREMENTS OF THE STATE STANDARD SPECIFICATIONS SECTION 9-14.5. 2. COVERING SHALL BE INSTALLED AND MAINTAINED TIGHTLY IN PLACE BY USING SANDBAGS OR TIRES ON ROPES WITH A MAXIMUM 10-FOOT GRID SPACING IN ALL DIRECTIONS. ALL SEAMS SHALL BE TAPED OR WEIGHTED DOWN FULL LENGTH AND THERE SHALL BE A LEAST A 12 INCH OVERLAP OF ALL SEAMS. 3. CLEAR PLASTIC COVERING SHALL BE INSTALLED IMMEDIATELY ON AREAS SEEDED BETWEEN NOVEMBER 1 AND MARCH 31 AND REMAIN UNTIL VEGETATION IS FIRMLY ESTABLISHED. 4. WHEN THE COVERING IS USED ON UN -SEEDED SLOPES, IT SHALL BE KEPT IN PLACE UNTIL THE NEXT SEEDING PERIOD. 5. PLASTIC COVERING SHEETS SHALL BE BURIED TWO FEET AT THE TOP OF SLOPES IN ORDER TO PREVENT SURFACE WATER FLOW BENEATH SHEETS 6. PROPER MAINTENANCE INCLUDES REGULAR CHECKS FOR RIPS AND DISLODGED ENDS. VERIFICATION NOTE ALL EXISTING UTILTTIES IN THE CONSTRUCTION AREA SHALL BE IDENTIFIED AND VERIFIED FOR DEPTH AND LOCATION PRIOR TO ANY CONSTRUCTION ACTIVITIES SO TO IDENTIFY ANY POTENTIAL CONFLICTS WITH PROPOSED CONSTRUCTION. CONTACT PROJECT ENGINEER IMMEDIATELY IF ANY CONFLICTS ARE IDENTIFIED. PRIOR TO ANY CONSTRUCTION ACTIVITIES, VERIFY EXISTING TOPOGRAPHY IS CONSISTENT WITH WHAT IS SHOWN ON PLANS AND IF THERE ARE ANY POTENTIAL CONFLICTS WITH PROPOSED CONSTRUCTION ACTIVITIES. CONTACT PROJECT ENGINEER IMMEDIATELY IF ANY CONFLICTS ARE IDENTIFIED. CALL 811 AT LEAST 48 HOURS BEFORE YOU DIG >- m w F- a 0 DESCRIPTION REVISION i t: w.cy,, I;" mow, i , ENGINEERING • L L C CIVIL ENGINEERS N SURVEYORS N LAND PLANNERS Phone: 253-857-5454 N Fax: 253-509-0044 N info@contourpllc.com Mailing Address: P.O. Box 949, Gig Harbor, WA 98335 Physical Address: 4706 97th Street NW, Suite 100, Gig Harbor, WA 98332 ALIYF.g OF A 7, /, I �. SHEET TITLE: TESC PLAN ZINK RESIDENCE CLIENT: JASON ZINK PO BOX 2483 BELFAIR, WA 98528 CONTACT: JASON ZINK PHONE: (360)440-4368 DESIGNER: K. MAUREN ENGINEER: J. HAUG DRAWN: M. DOUGLASS S13 T21 N RO2E WM DATE: 2018.10.18 REVISED: PROJECT: 18-051 DWG NAME: 18-051-C SHEET REV. C2 A 2 OF 5 MINIMUM TESC REQUIREMENTS 1. ALL EXPOSED AND UNWORKED SOILS, INCLUDING SOIL STOCKPILES, SHALL BE STABILIZED BY SUITABLE APPLICATION OF BMPS THAT PROTECT SOIL FROM THE EROSIVE FORCES OF RAINDROP IMPACT AND FLOWING APPLICABLE PRACTICES INCLUDE, BUT ARE NOT LIMITED TO VEGETATIVE ESTABLISHMENT, MULCHING, PLASTIC COVERING, AND THE EARLY APPLICATION OF GRAVEL BASE ON AREAS TO BE PAVED. FROM OCTOBER 1 TO APRIL 30, NO SOILS SHALL REMAIN UNSTABILIZED FOR MORE THAN 2 DAYS. FROM MAY 1 TO SEPTEMBER 30, NO SOILS SHALL REMAIN UNSTABILIZED FOR MORE THAN 7 DAYS. 2. AT ALL TIMES OF THE YEAR, THE CONTRACTOR SHALL HAVE SUFFICIENT MATERIALS, EQUIPMENT AND LABOR ON -SITE TO STABILIZE AND PREVENT EROSION FROM ALL DENUDED AREAS WITHIN 12 HOURS AS SITE AND WEATHER CONDITIONS DICTATE. 3. FROM OCTOBER 1ST TO APRIL 30TH, THE PROJECT ENGINEER SHALL VISIT THE DEVELOPMENT SITE A MINIMUM OF ONCE PER WEEK FOR THE PURPOSE OF INSPECTING THE EROSION AND SEDIMENTATION CONTROL FACILITIES, REVIEWING THE PROGRESS OF CONSTRUCTION, AND VERIFYING THE EFFECTIVENESS OF THE EROSION CONTROL MEASURES BEING UNDERTAKEN. THE PROJECT ENGINEER SHALL IMMEDIATELY INFORM THE COUNTY OF ANY PROBLEMS OR POTENTIAL PROBLEMS OBSERVED DURING SAID SITE VISITS, AS WELL AS OF ANY RECOMMENDED CHANGES IN THE EROSION CONTROL MEASURES TO BE UNDERTAKEN. WHEN REQUESTED BY THE COUNTY, THE PROJECT ENGINEER SHALL PROVIDE THE COUNTY WITH WRITTEN RECORDS OF SAID WEEKLY SITE VISITS, INCLUDING DATES OF VISITS AND NOTED SITE OBSERVATIONS. 4. IN THE EVENT THAT GROUND ON A PROJECT SITE IS LEFT BARE AFTER SEPTEMBER 30TH, THE COUNTY MAY ISSUE A STOP WORK ORDER FOR THE ENTIRE PROJECT UNTIL SATISFACTORY CONTROLS ARE PROVIDED. IN ADDITION, THE OWNER WILL BE SUBJECT TO THE PENALTIES PROVIDED IN THE MASON COUNTY CODE. 5. IN THE EVENT THAT GROUND ON A PROJECT SITE IS LEFT BARE AFTER SEPTEMBER 30TH, AND THE COUNTY IS UNSUCCESSFUL IN CONTACTING THE OWNER OR HIS/HER DESIGNATED EMERGENCY CONTACT PERSON, THE COUNTY MAY ENTER THE PROJECT SITE AND INSTALL TEMPORARY GROUND COVER MEASURES AND BILL THE OWNER FOR ALL EXPENSES INCURRED BY THE COUNTY. THESE COSTS WILL BE IN ADDITION TO ANY MONETARY PENALTIES LEVIED AGAINST THE OWNER. 6. CLEARING LIMITS, SETBACKS, BUFFERS, AND SENSITIVE OR CRITICAL AREAS SUCH AS STEEP SLOPES, WETLANDS AND RIPARIAN CORRIDORS SHALL BE CLEARLY MARKED IN THE FIELD AND INSPECTED BY MASON COUNTY DEPARTMENT OF COMMUNITY DEVELOPMENT PRIOR TO COMMENCEMENT OF LAND CLEARING ACTIVITIES. DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE BEYOND THE FLAGGED CLEARING LIMITS SHALL BE PERMITTED. THE FLAGGING SHALL BE MAINTAINED BY THE APPLICANT/CONTRACTOR FOR THE DURATION OF CONSTRUCTION. 7. ADJACENT PROPERTIES SHALL BE PROTECTED FROM SEDIMENT DEPOSITION BY APPROPRIATE USE OF VEGETATIVE BUFFER STRIPS, SEDIMENT BARRIERS OR FILTERS, DIKES OR MULCHING, OR BY A COMBINATION OF THESE MEASURES AND OTHER APPROPRIATE BMPS. 8. SEDIMENT PONDS AND TRAPS, PERIMETER DIKES, SEDIMENT BARRIERS AND OTHER BMPS INTENDED TO TRAP SEDIMENT ON -SITE SHALL BE 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 STABILIZED ACCORDING TO THE TIMING INDICATED IN ITEM (1) ABOVE. 9. CUT AND FILL SLOPES SHALL BE CONSTRUCTED IN A MANNER THAT WILL MINIMIZE EROSION. ROUGHENED SOIL SURFACES ARE PREFERRED TO SMOOTH SURFACES. INTERCEPTORS SHOULD BE CONSTRUCTED AT THE TOP OF LONG, STEEP SLOPES WHICH HAVE SIGNIFICANT AREAS ABOVE THAT CONTRIBUTE RUNOFF. CONCENTRATED RUNOFF SHOULD NOT BE ALLOWED TO FLOW DOWN THE FACE OF A CUT OR FILL SLOPE UNLESS CONTAINED WITHIN AN ADEQUATE CHANNEL OR PIPE SLOPE DRAIN. WHEREVER A SLOPE FACE CROSSES A WATER SEEPAGE PLANE, ADEQUATE DRAINAGE OR OTHER PROTECTION SHOULD BE PROVIDED. IN ADDITION, SLOPES SHOULD BE STABILIZED IN ACCORDANCE WITH ITEM (1) ABOVE. 10. PROPERTIES AND WATERWAYS DOWNSTREAM FROM DEVELOPMENT SITES SHALL BE PROTECTED FROM EROSION DUE TO INCREASES IN THE VOLUME, VELOCITY, AND PEAK FLOW RATE OF STORMWATER RUNOFF FROM THE DEVELOPMENT SITE BY THE IMPLEMENTATION OF APPROPRIATE BMPS TO MINIMIZE ADVERSE DOWNSTREAM IMPACTS. 11. ALL TEMPORARY ON -SITE CONVEYANCE CHANNELS SHALL BE DESIGNED, CONSTRUCTED AND STABILIZED TO PREVENT EROSION FROM THE EXPECTED FLOW VELOCITY FROM A 2-YEAR FREQUENCY, 24-HOUR DURATION STORM FOR THE POST -DEVELOPMENT CONDITION. STABILIZATION ADEQUATE TO PREVENT EROSION OF OUTLETS, ADJACENT STREAMBANKS, SLOPES AND DOWNSTREAM REACHES SHALL BE PROVIDED AT THE OUTLETS OF ALL CONVEYANCE SYSTEMS. 12. ALL STORM DRAIN INLETS MADE OPERABLE DURING CONSTRUCTION SHALL BE PROTECTED SO THAT STORMWATER RUNOFF SHALL NOT ENTER THE CONVEYANCE SYSTEM WITHOUT FIRST BEING FILTERED OR OTHERWISE TREATED TO REMOVE SEDIMENT. AFTER PROPER WRITTEN APPLICATION, THE REQUIREMENT FOR INLET PROTECTION MAY BE WAIVED BY THE COUNTY ON A SITE -SPECIFIC BASIS WHEN THE CONVEYANCE SYSTEM DOWNSTREAM OF THE INLET DISCHARGES TO AN APPROPRIATE SEDIMENT CONTAINMENT BMP AND THE CONVEYANCE SYSTEM CAN BE ADEQUATELY CLEANED FOLLOWING SITE STABILIZATION. 13. THE CONSTRUCTION OF UNDERGROUND UTILITY LINES SHALL BE LIMITED, WHERE FEASIBLE, TO NO MORE THAN 500 FEET OF OPEN TRENCH AT ANY ONE TIME. WHERE CONSISTENT WITH SAFETY AND SPACE CONSIDERATIONS, EXCAVATED MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF THE TRENCH. DEWATERING DEVICES SHALL DISCHARGE TO AN APPROPRIATE SEDIMENT TRAP OR POND, PRECEDED BY ADEQUATE ENERGY DISSIPATION, PRIOR TO RUNOFF LEAVING THE SITE. 14. WHEREVER CONSTRUCTION VEHICLE ACCESS ROUTES INTERSECT PAVED ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT (MUD) ONTO THE PAVED ROAD BY USE OF APPROPRIATE BMPS SUCH AS A STABILIZED CONSTRUCTION ENTRANCE. IF SEDIMENT IS TRANSPORTED ONTO A ROAD SURFACE, THE ROADS SHALL BE CLEANED THOROUGHLY, AS A MINIMUM, 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. 15. ALL TEMPORARY EROSION AND SEDIMENT CONTROL BMPS SHALL BE REMOVED WITHIN 30 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 OF TEMPORARY BMPS SHALL BE PERMANENTLY STABILIZED. THE REMOVAL OF TEMPORARY EROSION AND SEDIMENT CONTROL BMPS MAY NOT BE REQUIRED FOR THOSE PROJECTS, SUCH AS SINGLE FAMILY PLATS, THAT WILL BE FOLLOWED BY ADDITIONAL CONSTRUCTION UNDER A DIFFERENT IN THESE CIRCUMSTANCES, THE NEED FOR REMOVING OR RETAINING THE MEASURES WILL BE EVALUATED ON A SITE -SPECIFIC BASIS. 16. DEWATERING DEVICES SHALL DISCHARGE INTO AN APPROPRIATE SEDIMENT TRAP OR POND, DESIGNED TO ACCEPT SUCH A DISCHARGE, PRECEDED BY ADEQUATE ENERGY DISSIPATION, PRIOR TO RUNOFF LEAVING THE SITE. 17. ALL POLLUTANTS OTHER THAN SEDIMENT THAT OCCUR ON -SITE DURING CONSTRUCTION SHALL BE HANDLED AND LEGALLY DISPOSED OF IN A MANNER THAT DOES NOT CAUSE CONTAMINATION OF STORM OR SURFACE POLLUTANTS OF CONCERN INCLUDE, BUT ARE NOT LIMITED TO, FUELS, LUBRICANTS, SOLVENTS,CONCRETE BI-PRODUCTS AND CONSTRUCTION MATERIALS 18. PROTECT ALL LID BMPS, INCLUDING BUT NOT LIMITED TO BIORETENTION, RAIN GARDEN, AND PERMEABLE PAVEMENT, FROM SEDIMENTATION THROUGH INSTALLATION AND MAINTENANCE OF EROSION AND SEDIMENT CONTROL BMPS ON PORTIONS OF THE SITE THAT DRAIN INTO SUCH BMPS. RESTORE THE BMPS TO THEIR FULLY FUNCTIONING CONDITION IF THEY ACCUMULATE SEDIMENT DURING CONSTRUCTION. PREVENT COMPACTION IN BIORETENTION AND RAIN GARDEN BMPS BY EXCLUDING CONSTRUCTION EQUIPMENT AND FOOT TRAFFIC. PROTECT LAWN AND LANDSCAPED AREAS FROM COMPACTION BY CONSTRUCTION EQUIPMENT. KEEP ALL HEAVY EQUIPMENT OFF EXISTING SOILS UNDER LID FACILITIES THAT HAVE BEEN EXCAVATED TO FINAL GRADE TO RETAIN INFILTRATION RATE OF THE SOILS. 19. ALL TEMPORARY AND PERMANENT EROSION AND SEDIMENT CONTROL BMPS SHALL BE MAINTAINED AND REPAIRED AS NEEDED TO ASSURE CONTINUED PERFORMANCE OF THEIR INTENDED FUNCTION. ALL MAINTENANCE AND REPAIR SHALL BE CONDUCTED IN ACCORDANCE WITH THE MANUAL. THE APPLICANT SHALL BE RESPONSIBLE FOR ASSURING THAT ANY SUCH FACILITIES DAMAGED DURING FLOODS, STORMS OR OTHER ADVERSE WEATHER CONDITIONS ARE IMMEDIATELY RETURNED TO NORMAL OPERATING CONDITION. 20. A PERFORMANCE COVENANT OR PERFORMANCE SURETY SHALL BE REQUIRED FOR ALL PROJECTS TO ENSURE COMPLIANCE WITH THE MASON COUNTY STORMWATER RUNOFF, SOIL EROSION AND SEDIMENTATION CONTROL GUIDLINES. ZINK RESIDENCE A PORTION OF SECTION 13, TOWNSHIP 21N, RANGE 2, W.M., GRAPEVIEW, MASON COUNTY, WASHINGTON GENERAL TESC NOTES 1. THE FOLLOWING EROSION AND SEDIMENTATION CONTROL NOTES APPLY TO ALL CONSTRUCTION SITE ACTIVITIES AT ALL TIMES, UNLESS OTHERWISE SPECIFIED ON THESE PLANS: 2. APPROVAL OF THIS EROSION AND SEDIMENTATION CONTROL PLAN DOES NOT CONSTITUTE AN ACCEPTANCE OF THE PERMANENT ROAD OR DRAINAGE DESIGN. 3. THE OWNER AND HIS/HER CONTRACTOR SHALL BE RESPONSIBLE AT ALL TIMES FOR PREVENTING SILT -LADEN RUNOFF FROM DISCHARGING FROM THE PROJECT SITE. FAILURE BY THE OWNER AND/OR CONTRACTOR CAN RESULT IN A FINE. THE DESIGNATED TEMPORARY CONTACT PERSON NOTED ON THIS PLAN SHALL BE AVAILABLE FOR CONTACT BY TELEPHONE ON A 24-HOUR BASIS THROUGHOUT CONSTRUCTION AND UNTIL THE PROJECT HAS BEEN COMPLETED AND ACCEPTED BY THE COUNTY. 4. THE IMPLEMENTATION OF THESE ESC PLANS AND THE CONSTRUCTION, MAINTENANCE, REPLACEMENT AND UPGRADING OF THESE FACILITIES IS THE RESPONSIBILITY OF THE OWNER AND/OR CONTRACTOR FROM THE BEGINNING OF CONSTRUCTION UNTIL ALL CONSTRUCTION IS COMPLETED AND ACCEPTED BY THE COUNTY AND THE SITE IS STABILIZED. 5. PRIOR TO BEGINNING ANY WORK ON THE PROJECT SITE, A PRE -CONSTRUCTION CONFERENCE SHALL BE HELD, AND SHALL BE ATTENDED BY THE OWNER OR OWNER'S REPRESENTATIVE, THE GENERAL CONTRACTOR, THE PROJECT ENGINEER, REPRESENTATIVES FROM AFFECTED UTILITIES, AND A REPRESENTATIVE OF MASON COUNTY. 6. THE EROSION AND SEDIMENTATION CONTROL FACILITIES SHOWN ON THIS PLAN ARE TO BE CONSIDERED ADEQUATE BASIC REQUIREMENTS FOR THE ANTICIPATED SITE CONDITIONS. DURING CONSTRUCTION, DEVIATIONS FROM THIS PLAN MAY BE NECESSARY IN ORDER TO MAINTAIN WATER QUALITY. MINOR DEPARTURES FROM THIS PLAN ARE PERMUTED SUBJECT TO THE APPROVAL OF THE COUNTY INSPECTOR. HOWEVER, EXCEPT FOR EMERGENCY SITUATIONS, ALL OTHER DEVIATIONS FROM THIS PLAN SHALL BE DESIGNED BY THE PROJECT ENGINEER AND APPROVED BY MASON COUNTY PRIOR TO INSTALLATION. 7. ALL EROSION AND SEDIMENTATION CONTROL MEASURES SHALL BE INSPECTED BY THE OWNER AND/OR CONTRACTOR ON A FREQUENT BASIS AND IMMEDIATELY AFTER EACH RAINFALL, AND MAINTAINED AS NECESSARY TO INSURE THEIR CONTINUED FUNCTIONING. ALL SEDIMENT SHALL BE REMOVED FROM SILT FENCES, STRAW BALES, SEDIMENT PONDS, ETC. PRIOR TO THE SEDIMENT REACHING 1/3 ITS MAXIMUM POTENTIAL DEPTH. 8. AT NO TIME SHALL CONCRETE, CONCRETE BY-PRODUCTS, VEHICLE FLUIDS, PAINT, CHEMICALS, OR OTHER POLLUTING MATTER BE PERMUTED TO DISCHARGE TO THE TEMPORARY OR PERMANENT DRAINAGE SYSTEM, OR TO DISCHARGE FROM THE PROJECT SITE. 9. PERMANENT DETENTION/RETENTION PONDS, PIPES, TANKS OR VAULTS MAY ONLY BE USED FOR SEDIMENT CONTAINMENT WHEN SPECIFICALLY INDICATED ON THESE PLANS. 10. REDIRECT SHEET FLOW, BLOCK DRAIN INLETS AND/OR CURB OPENINGS IN PAVEMENT AND INSTALL FLOW DIVERSION MEASURES TO PREVENT CONSTRUCTION SILT LADEN RUNOFF AND DEBRIS FROM ENTERING EXCAVATIONS AND FINISH SURFACES FOR BIORETENTION FACILITIES AND PERMEABLE PAVEMENTS. 11. WHERE AMENDED SOILS, BIORETENTION FACILITIES, AND PERMEABLE PAVEMENTS ARE INSTALLED, THESE AREAS SHALL BE PROTECTED AT ALL TIMES FROM BEING OVER -COMPACTED. IF AREAS BECOME COMPACTED, REMEDIATE AND TILL SOIL IN ACCORDANCE WITH THE COUNTY REQUIREMENTS AT NO ADDITIONAL COST IN ORDER TO RESTORE THE SYSTEM'S ABILITY TO INFILTRATE. 12. INSTALL FLOW DIVERSION MEASURES OUTSIDE OF THE CRITICAL ROOT ZONE OF TREES TO BE PROTECTED. AT NO TIME SHALL CONSTRUCTION STORMWATER BE DIRECTED TOWARDS TREES TO BE PROTECTED. CONSTRUCTION STORMWATER SHALL NOT POND WITHIN A TREE'S CRITICAL ROOT ZONE. TESC MAINTENANCE REQUIREMENTS 1. EROSION AND SEDIMENTATION CONTROL FACILITIES SHALL BE INSPECTED AFTER EACH STORM EVENT AND DAILY DURING PROLONGED RAINFALL. 2. NECESSARY REPAIRS OR REPLACEMENT OF FACILITIES SHALL BE ACCOMPLISHED PROMPTLY. 3. SEDIMENT DEPOSITS SHALL BE REMOVED AFTER EACH STORM EVENT OR WHEN THE LEVEL OF DEPOSITION REACHES APPROXIMATELY ONE-HALF THE MAXIMUM POTENTIAL DEPTH. 4. SEDIMENT DEPOSITS REMAINING IN PLACE AFTER THE ESC FACILITIES ARE NO LONGER REQUIRED SHALL BE DRESSED TO CONFORM TO THE EXISTING GRADE, PREPARED AND SEEDED. 5. TEMPORARY EROSION AND SEDIMENTATION CONTROL FACILITIES SHALL BE MAINTAINED BY THE CONTRACTOR. GENERAL STORM CONSTRUCTION NOTES 1. ALL WORKMANSHIP AND MATERIALS SHALL BE IN ACCORDANCE WITH COUNTY STANDARDS AND THE MOST CURRENT COPY OF THE STATE OF WASHINGTON STANDARD SPECIFICATIONS FOR ROAD, BRIDGE AND MUNICIPAL CONSTRUCTION (WSDOT) AS AMENDED BY THE COUNTY OR THE STATE. 2. TEMPORARY EROSION/WATER POLLUTION PREVENTION MEASURES SHALL BE REQUIRED IN ACCORDANCE WITH THE KITSAP COUNTY STORMWATER MANAGEMENT MANUAL AND THE DEPT. OF ECOLOGY'S CONSTRUCTION STORMWATER GENERAL PERMIT. SHOULD THE TEMPORARY EROSION AND SEDIMENTATION CONTROL MEASURES AS SHOWN ON THIS DRAWING SET NOT PROVE ADEQUATE TO CONTROL. EROSION AND SEDIMENTATION, THE APPLICANT/CONTRACTOR SHALL INSTALL ADDITIONAL FACILITIES AS NECESSARY TO PROTECT ADJACENT PROPERTIES, SENSITIVE AREAS, NATURAL WATER COURSES, AND/OR STORM DRAINAGE SYSTEMS. 3. CALL THE UNDERGROUND LOCATE LINE 1-800-424-5555 A MINIMUM OF 48 HOURS PRIOR TO ANY EXCAVATIONS. 4. THE STORM DRAINAGE SYSTEM SHALL BE CONSTRUCTED ACCORDING TO APPROVED PLANS ON FILE WITH THE COUNTY. ANY SIGNIFICANT DEVIATION FROM THE APPROVED PLANS WILL REQUIRE WRITTEN APPROVAL FROM THE COUNTY. 5. A COPY OF THE APPROVED CONSTRUCTION STORMWATER POLLUTION PREVENTION PLAN AND STORMWATER PLANS MUST BE ON THE JOB SITE WHENEVER CONSTRUCTION IS IN PROGRESS. 6. ALL EROSION CONTROL AND STORMWATER FACILITIES SHALL BE REGULARLY INSPECTED AND MAINTAINED BY THE DESIGNATED CERTIFIED EROSION AND SEDIMENT CONTROL LEAD (CESCL) DURING CONSTRUCTION. 7. IT SHALL BE THE SOLE RESPONSIBILITY OF THE CONTRACTOR TO OBTAIN STREET USE AND OTHER RELATED OR REQUIRED PERMITS PRIOR TO ANY CONSTRUCTION ACTIVITY IN THE MUNICIPALITY'S RIGHT-OF-WAY. IT SHALL ALSO BE THE RESPONSIBILITY OF THE CONTRACTOR TO OBTAIN ALL REQUIRED PERMITS PRIOR TO ANY CONSTRUCTION. THE CONTRACTOR SHALL ABIDE BY ALL REQUIREMENTS FOR TRAFFIC CONTROL & SAFETY WHEN WORKING IN THE ROAD RIGHT-OF-WAY. 8. THE CONTRACTOR SHALL NOTIFY THE PROJECT ENGINEER IN THE EVENT OR DISCOVERY OF POOR SOILS, STANDING GROUNDWATER, OR SEVERE DISCREPANCIES FROM SOIL LOG DESCRIPTIONS AS NOTED ON THE PLANS. 9. FOR PUBLIC SYSTEMS, THE CONTRACTOR SHALL CALL FOR INSPECTION 48 HOURS PRIOR TO COVERING ANY DRAINAGE STRUCTURE. 10. ALL DRAINAGE STRUCTURES, SUCH AS CATCH BASIN AND MANHOLES, NOT LOCATED WITHIN A TRAVELED ROADWAY OR SIDEWALK, SHALL HAVE SOLID LOCKING LIDS. ALL DRAINAGE STRUCTURES ASSOCIATED WITH A PERMANENT RETENTION/DETENTION FACILITY SHALL HAVE A SOLID LOCKING LIDS. SOIL AMENDMENT NOTE ALL SOILS UNDERLYING LAWN OR LANDSCAPE AREAS SHALL BE AMENDED USING ONE OF THE FOUR OPTIONS LISTED BELOW. OPTION 1 - LEAVE NATIVE VEGETATION AND SOIL UNDISTURBED, AND PROTECT FROM COMPACTION DURING CONSTRUCTION. IDENTIFY AREAS OF THE SITE THAT WILL NOT BE STRIPPED, LOGGED, GRADED OR DRIVEN ON, AND FENCE OFF THOSE AREAS TO PREVENT IMPACTS DURING CONSTRUCTION. IF NEITHER SOILS NOR VEGETATION ARE DISTURBED, THESE AREAS DO NOT REQUIRE AMENDMENT. OPTION 2 - AMEND EXISTING SITE TOPSOIL OR SUBSOIL SCARIFY OR TILL SUBGRADE TO 8 INCHES DEPTH (OR TO DEPTH NEEDED TO ACHIEVE A TOTAL DEPTH OF 12 INCHES OF UNCOMPACTED SOIL AFTER CALCULATED AMOUNT OF AMENDMENT IS ADDED). ENTIRE SURFACE SHOULD BE DISTURBED BY SCARIFICATION. DO NOT SCARIFY WITHIN DRIP LINE OF EXISTING TREES TO BE RETAINED. AMEND SOIL TO MEET REQUIRED ORGANIC CONTENT. PLANTING BEDS 1. PRE -APPROVED RATE: PLACE 3 INCHES OF COMPOSTED MATERIAL AND ROTOTILL INTO 5 INCHES OF SOIL (A TOTAL AMENDED DEPTH OF ABOUT 9.5 INCHES, FORA SETTLED DEPTH OF 8 INCHES). 2. CALCULATED RATE: PLACE CALCULATED AMOUNT OF COMPOSTED MATERIAL OR APPROVED ORGANIC MATERIAL AND ROTOTILL INTO DEPTH OF SOIL NEEDED TO ACHIEVE 8 INCHES OF SETTLED SOIL AT 10% ORGANIC CONTENT. RAKE BEDS TO SMOOTH AND REMOVE SURFACE ROCKS LARGER THAN 2 INCHES DIAMETER. MULCH PLANTING BEDS WITH 2 INCHES OF ORGANIC MULCH. TURF AREAS 1. PRE -APPROVED RATE: PLACE 1.75 INCHES OF COMPOSTED MATERIAL AND ROTOTILL INTO 6.25 INCHES OF SOIL (A TOTAL AMENDED DEPTH OF ABOUT 9.5 INCHES, FOR A SETTLED DEPTH OF 8 INCHES). 2. CALCULATED RATE: PLACE CALCULATED AMOUNT OF COMPOSTED MATERIAL OR APPROVED ORGANIC MATERIAL AND ROTOTILL INTO DEPTH OF SOIL NEEDED TO ACHIEVE 8 INCHES OF SETTLED SOIL AT 5% ORGANIC CONTENT. WATER OR ROLL TO COMPACT TO 85% OF MAXIMUM DRY DENSITY. RAKE TO LEVEL, AND REMOVE SURFACE WOODY DEBRIS AND ROCKS LARGER THAN 1 INCH DIAMETER. OPTION 3 - STOCKPILE EXISTING TOPSOIL DURING GRADING AND REPLACE PRIOR TO PLANTING. STOCKPILED TOPSOIL MUST ALSO BE AMENDED IF NEEDED TO MEET THE ORGANIC MATTER OR DEPTH REQUIREMENTS, EITHER AT A PRE -APPROVED DEFAULT RATE OR AT A CUSTOM CALCULATED RATE. IF PLACED. TOPSOIL PLUS COMPOST OR OTHER ORGANIC MATERIAL WILL AMOUNT TO LESS THAN 12 INCHES: SCARIFY OR TILL SUBGRADE TO DEPTH NEEDED TO ACHIEVE 12 INCHES OF LOOSENED SOIL AFTER TOPSOIL AND AMENDMENT ARE PLACED. ENTIRE SURFACE SHOULD BE DISTURBED BY SCARIFICATION. DO NOT SCARIFY WITHIN DRIP LINE OF EXISTING TREES TO BE RETAINED. STOCKPILE AND COVER SOIL WITH WEED BARRIER MATERIAL THAT SHEDS MOISTURE YET ALLOWS AIR TRANSMISSION, IN APPROVED LOCATION, PRIOR TO GRADING. REPLACE STOCKPILED TOPSOIL PRIOR TO PLANTING. AMEND IF NEEDED TO MEET REQUIRED ORGANIC CONTENT. PLANTING BEDS 1. PRE -APPROVED RATE: PLACE 3 INCHES OF COMPOSTED MATERIAL AND ROTOTILL INTO 5 INCHES OF SOIL (A TOTAL AMENDED DEPTH OF ABOUT 9.5 INCHES, FOR A SETTLED DEPTH OF 8 INCHES). 2. CALCULATED RATE: PLACE CALCULATED AMOUNT OF COMPOSTED MATERIAL OR APPROVED ORGANIC MATERIAL AND ROTOTILL INTO DEPTH OF SOIL NEEDED TO ACHIEVE 8 INCHES OF SETTLED SOIL AT 10% ORGANIC CONTENT. RAKE BEDS TO SMOOTH AND REMOVE SURFACE ROCKS LARGER THAN 2 INCHES DIAMETER. MULCH PLANTING BEDS WITH 2 INCHES OF ORGANIC MULCH. TURF AREAS 1. PRE -APPROVED RATE: PLACE 1.75 INCHES OF COMPOSTED MATERIAL AND ROTOTILL INTO 6.25 INCHES OF SOIL (A TOTAL AMENDED DEPTH OF ABOUT 9.5 INCHES, FOR A SETTLED DEPTH OF 8 INCHES). 2. CALCULATED RATE: PLACE CALCULATED AMOUNT OF COMPOSTED MATERIAL OR APPROVED ORGANIC MATERIAL AND ROTOTILL INTO DEPTH OF SOIL NEEDED TO ACHIEVE 8 INCHES OF SETTLED SOIL AT 5% ORGANIC CONTENT. WATER OR ROLL TO COMPACT TO 85% OF MAXIMUM DRY DENSITY. RAKE TO LEVEL, AND REMOVE SURFACE WOODY DEBRIS AND ROCKS LARGER THAN 1 INCH DIAMETER. OPTION 4 - IMPORT TOPSOIL MIX OF SUFFICIENT ORGANIC CONTENT AND DEPTH TO MEET THE REQUIREMENTS. SCARIFY OR TILL SUBGRADE IN TWO DIRECTIONS TO 6 INCHES DEPTH. ENTIRE SURFACE SHOULD BE DISTURBED BY SCARIFICATION. DO NOT SCARIFY WITHIN DRIP LINE OF EXISTING TREES TO BE RETAINED. PLANTING BEDS USE IMPORTED TOPSOIL MIX CONTAINING 10% ORGANIC MATTER (TYPICALLY AROUND 40% COMPOST). SOIL PORTION MUST BE SAND OR SANDY LOAM AS DEFINED BY THE USDA. PLACE 3 INCHES OF IMPORTED TOPSOIL MIX ON SURFACE AND TILL INTO 2 INCHES OF SOIL. PLACE 3 INCHES OF IMPORTED TOPSOIL MIX ON SURFACE AND TILL INTO 2 INCHES OF SOIL. PLACE SECOND LIFT OF 3 INCHES TOPSOIL MIX ON SURFACE. RAKE BEDS TO SMOOTH, AND REMOVE SURFACE ROCKS OVER 2 INCHES DIAMETER. MULCH PLANTING BEDS WITH 2 INCHES OF ORGANIC MULCH. TURF AREAS USE IMPORTED TOPSOIL MIX CONTAINING 5% ORGANIC MATTER (TYPICALLY AROUND 25% COMPOST). SOIL PORTION MUST BE SAND OR SANDY LOAM AS DEFINED BY THE USDA. PLACE 3 INCHES OF IMPORTED TOPSOIL MIX. ON SURFACE AND TILL INTO 2 INCHES OF SOIL. PLACE SECOND LIFT OF 3 INCHES TOPSOIL MIX ON SURFACE. WATER OR ROLL TO COMPACT SOIL TO 85% OF MAXIMUM. RAKE TO LEVEL, AND REMOVE SURFACE ROCKS LARGER THAN 1 INCH DIAMETER. TESC CONTRACTOR NOTES 1. INLET PROTECTION SHALL BE INSTALLED IN ALL NEWLY CONSTRUCTED CATCH BASINS PER DETAIL 2, SHEET C2. INLET PROTECTION SHALL BE INSTALLED ALONG ALL IMPACTED FRONTAGE AND OFF -SITE AREAS PER THE REQUIREMENTS OF THE COUNTY INSPECTOR. 2. FILTER FABRIC FENCE SHALL BE UTILIZED IF NEEDED TO PROTECT DOWNSTREAM PROPERTIES AND TO HELP ENSURE NO EROSION OR SEDIMENTATION 3. ALL DEMOLISHED MATERIALS SHALL BE REMOVED FROM THE SITE AND DISPOSED OF AT A COUNTY APPROVED LOCATION AND IN A MANNER CONSISTENT WITH CURRENT REGULATIONS AND REQUIREMENTS. 4. ALL AREAS THAT WILL BE UNWORKED FOR MORE THAN SEVEN (7) DAYS DURING THE DRY SEASON OR TWO (2) DAYS DURING THE WET SEASON, SHALL BE COVERED WITH STRAW, WOOD FIBER MULCH, COMPOST, PLASTIC SHEETING, OR OTHER EQUIVALENT PER CURRENT PIERCE COUNTY STANDARDS. SEE SEEDING NOTES SHEET C2. 5. CONTRACTOR SHALL DESIGNATE A WASHINGTON DEPT OF ECOLOGY CERTIFIED EROSION CONTROL LEAD PERSON, AND SHALL COMPLY WITH THE CONSTRUCTION STORMWATER POLLUTION PREVENTION PLAN (SWPPP) PREPARED FOR THE PROJECT. 6. SEDIMENT LADEN RUNOFF SHALL NOT BE ALLOWED TO DISCHARGE BEYOND THE LIMITS OF THE IMPROVEMENTS. ADDITIONAL MEASURES SHALL BE INSTALLED AS NEEDED. 7. AT ANY TIME DURING CONSTRUCTION IT IS DETERMINED BY THE COUNTY THAT MUD AND DEBRIS ARE BEING TRACKED ONTO PUBLIC STREETS WITH INSUFFICIENT CLEANUP, ALL WORK SHALL CEASE ON THE PROJECT UNTIL THIS CONDITION IS CORRECTED. THE CONTRACTOR AND/OR THE OWNER SHALL IMMEDIATELY TAKE ALL STEPS NECESSARY TO PREVENT FUTURE TRACKING OF MUD AND DEBRIS INTO THE PUBLIC ROW, WHICH MAY INCLUDE THE INSTALLATION OF A WHEEL WASH FACILITY ON -SITE. GENERAL NOTES 1. ALL WORKMANSHIP AND MATERIALS SHALL CONFORM TO THE MOST CURRENT STANDARD SPECIFICATIONS FOR ROAD, BRIDGE AND MUNICIPAL CONSTRUCTION PREPARED BY WSDOT AND APWA AS ADOPTED BY THE KITSAP COUNTY DEPARTMENT OF PUBLIC WORKS (KCPW). 2. ANY REVISIONS TO THE ACCEPTED CONSTRUCTION PLANS SHALL BE REVIEWED AND APPROVED BY THE COUNTY PRIOR TO IMPLEMENTATION IN THE FIELD. 3. THE CONTRACTOR SHALL MAINTAIN A SET OF THE ACCEPTED CONSTRUCTION DRAWINGS ON -SITE AT ALL TIMES WHILE CONSTRUCTION IS IN PROGRESS. 4. IT SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR TO OBTAIN ALL NECESSARY PERMITS FROM THE KCPW PRIOR TO COMMENCING ANY WORK WITHIN COUNTY RIGHT-OF-WAY. 5. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING ADEQUATE TRAFFIC CONTROL AT ALL TIMES DURING CONSTRUCTION ALONGSIDE OR WITHIN ALL PUBLIC ROADWAYS. TRAFFIC FLOW ON EXISTING PUBLIC ROADWAYS SHALL BE MAINTAINED AT ALL TIMES, UNLESS PERMISSION IS OBTAINED FROM THE KCPW FOR ROAD CLOSURE AND/OR DETOURS. 6. THE LOCATION OF EXISTING UTILITIES ON THIS PLAN IS APPROXIMATE ONLY. THE CONTRACTOR SHALL CONTRACT THE "UNDERGROUND LOCATE" CENTER AT 811, AND NON -SUBSCRIBING INDIVIDUAL UTILITY COMPANIES 48 HOURS IN ADVANCE OF THE COMMENCEMENT OF ANY CONSTRUCTION ACTIVITY. THE CONTRACTOR SHALL. PROVIDE FOR PROTECTION OF EXISTING UTILITIES FROM DAMAGE CAUSED BY THE CONTRACTOR'S OPERATIONS. 7. ROCKERIES OR OTHER RETAINING FACILITIES EXCEEDING 4 FT. IN HEIGHT REQUIRE A SEPARATE PERMIT 8. A "FORESTRY PRACTICES" PERMIT MAY BE REQUIRED PRIOR TO CLEARING OF THE SITE. PERMANENT STABILIZATION NOTES 1. ALL EXPOSED SLOPES SHALL BE SEEDED AFTER CONSTRUCTION HAS BEEN COMPLETED. SILT FENCE, IF DEEMED APPROPRIATE, SHALL REMAIN FOR A• MINIMUM OF 30 DAYS AFTER THE FINAL STABILIZATION OF THE SLOPES HAS OCCURRED. 2. ALL TEMPORARY EROSION CONTROL BMP'S SHALL BE REMOVED 30 DAYS AFTER FINAL STABILIZATION HAS OCCURRED. 3. SEDIMENT SHALL BE REMOVED FROM ALL CATCH BASINS. VERIFICATION NOTE ALL EXISTING UTILITIES IN THE CONSTRUCTION AREA SHALL BE IDENTIFIED AND VERIFIED FOR DEPTH AND LOCATION PRIOR TO ANY CONSTRUCTION ACTIVITIES SO TO IDENTIFY ANY POTENTIAL CONFLICTS WITH PROPOSED CONSTRUCTION. CONTACT PROJECT ENGINEER IMMEDIATELY IF ANY CONFLICTS ARE IDENTIFIED. PRIOR TO ANY CONSTRUCTION ACTIVITIES, VERIFY EXISTING TOPOGRAPHY IS CONSISTENT WITH WHAT IS SHOWN ON PLANS AND IF THERE ARE ANY POTENTIAL CONFLICTS WITH PROPOSED CONSTRUCTION ACTIVITIES. CONTACT PROJECT ENGINEER IMMEDIATELY IF ANY CONFLICTS ARE IDENTIFIED. CALL 811 AT LEAST 48 HOURS BEFORE YOU DIG I %1.■ %11ENGINEERING•LLC' CIVIL ENGINEERS „► SURVEYORS N LAND PLANNERS Phone: 253-857-5454 N Fax: 253-509-0044 N info@contourpllc.com Mailing Address: P.O. Box 949, Gig Harbor, WA 98335 Physical Address: 4706 97th Street NW, Suite 100, Gig Harbor, WA 98332 ,vsAY �oil40 $ of nazt - r� ' .> ao oq , '4 SoNA SHEET TITLE: TESC NOTES AND DETAILS ZINK RESIDENCE CLIENT: JASON ZINK PO BOX 2483 BELFAIR, WA 98528 CONTACT: JASON ZINK PHONE: (360)440-4368 GRAPHIC SCALE 0 10 20 1 INCH = 10 FEET (22"x34") 1 INCH = 20 FEET (11"x17") / / i / I I uJ W Cl- DC L.9 W I 251.19 249.61 i 7- 248.59 s THIS IS NOT‘A SURVEY, TOPOGRAPHICAL INFORMATION SHOWN HERE PER AVAILABLE LIDAR. 250.71 '4.0%; / I 48 250.11 244.69 245.25 244.49 244.52 / 250.06 249.00 247.52 1 f 245.38 243.00 / / / 2.0% 249.65 ZINK RESIDENCE A PORTION OF SECTION 13, TOWNSHIP 21N, RANGE 2, W.M., GRAPEVIEW, MASON COUNTY, WASHINGTON - 250.25 a./ / 6 /• 250.25 250 / / PROPOSED RESIDENCE / FF MAIN = 252.08 / FF GARAGE = 250.25 / FF BASEMENT = 243.00 4 #4* 49. 250.25 - 249.00 �1249.99 250.18 - 250.25 244.13 - 242.77 / 243.16 . ....../. ........... i / / / / / v r / /. / / / 4, • r / ./ / .I Jr \k• \t,I / .r, . - .v w/ ,L 4 a ,fr / ., \v v '1' J/ / •L p ,a, '' .v I / ' J-,-(. ' �v I 'v V W W / / / / ! l / v/ .v I , y Ca y �4, I-I/ v q•-• 4 .4/ .L / / MirJ -4/ xl, I 're i' / / / / A. y \4, id / -‘,/ r i v ‘V AZ / / / / / / / / / v .1,- W J/ \v __ - \\ l v w v/ ,I,/ / / / / ,i/ �•1' v /. / / I FINISH FLOOR NOTE FINISH FLOOR OF HOUSE IS AN APPROXIMATE BASED ON AVAILABLE INFORMATION FROM THE ARCHITECT AND LIDAR. ELEVATIONS MAY CHANGE BASED ON ACTUAL FINISHED FLOOR ELEVATIONS. CONTRACTORS NOTES 1. CONTRACTOR SHALL VERIFY EXACT VERTICAL AND HORIZONTAL LOCATIONS OF ALL EXISTING UTILITIES AND STUBS AT ALL PROPOSED CONNECTION POINTS PRIOR TO THE BEGINNING OF ANY CONSTRUCTION ACTIVITIES. IF VERTICAL AND/OR HORIZONTAL LOCATIONS DIFFER FROM WHAT IS SHOWN ON PLANS, CONTACT PROJECT ENGINEER IMMEDIATELY FOR POSSIBLE DESIGN CHANGES. 2. A MINIMUM OF 10' HORIZONTAL SEPARATION AND 3' VERTICAL SEPARATION SHALL BE MAINTAINED BETWEEN ALL WATER AND SEWER MAINS. MINIMUM VERTICAL SEPARATION CAN BE REDUCED TO 1.5' BY MEANS OF CONCRETE ENCASEMENT OF SEWER OR THE USE OF DUCTILE IRON PIPE PER COUNTY STANDARDS. A MINIMUM OF 5' HORIZONTAL AND 0.5' VERTICAL SEPARATION SHALL BE MAINTAINED BETWEEN STORM AND WATER, AND STORM AND SEWER. 3. ALL WORKMANSHIP AND MATERIAL SHALL BE IN ACCORDANCE WITH COUNTY STANDARDS AND THE MOST CURRENT COPY OF THE STATE OF WASHINGTON STANDARD SPECIFICATIONS FOR ROAD, BRIDGE AND MUNICIPAL CONSTRUCTION. 4. THE FINISH GRADE RIM ELEVATION MAY NEED TO BE ADJUSTED FROM WHAT IS SHOWN ON PLANS DUE TO SUCH THINGS AS FIELD CONDITIONS, VARIATIONS IN PAVING SURFACE, ETC. FINAL RIM ELEVATION SHALL MATCH FINISH GRADE ELEVATIONS. 5. THE CONTRACTOR SHALL REPAIR AND/OR REPLACE ALL DISTURBED AREAS WITHIN PUBLIC RIGHT OF WAY AS NEEDED SO TO RESTORE TO PRE -CONSTRUCTION CONDITION. GRADING NOTES 1. SPOT ELEVATIONS AND GRADING INFORMATION SHOWN IS BASED ON AVAILABLE LIDAR AND AS SUCH, ACTUAL FIELD GRADES WILL DIFFER FROM WHAT IS SHOWN. CONSTRUCTED GRADES SHALL BE ADJUSTED ACCORDING TO ACTUAL FIELD GRADES FOLLOWING THE GENERAL CONCEPTS AND DRAINAGE PATTERNS OF THIS PLAN. 2. THE CONTRACTOR SHALL NOTIFY THE ENGINEER IN THE EVENT OR DISCOVERY OF POOR SOILS, GROUNDWATER OR DISCREPANCIES IN THE EXISTING CONDITIONS AS NOTED ON THE PLANS. 3. MAXIMUM SLOPE STEEPNESS SHALL BE 2:1 (HORIZONTAL TO VERTICAL) FOR FILL SLOPES AND 2:1 FOR CUT SLOPES. 4. UNLESS OTHERWISE SPECIFIED, ALL EMBANKMENTS IN THE PLAN SET SHALL BE CONSTRUCTED IN ACCORDANCE WITH SECTION 2-03.3(14)B OF THE WSDOT STANDARD SPECIFICATIONS. EMBANKMENT COMPACTIONS SHALL CONFORM TO SECTION 2-03.3(14)C, METHOD B OF SAID STANDARD SPECIFICATIONS. 5. EMBANKMENTS DESIGNED TO IMPOUND WATER SHALL BE COMPACTED TO 95% MAXIMUM DENSITY PER SECTION 2-03.3(14)C, METHOD C OF WSDOT STANDARD SPECIFICATIONS. 6. ALL AREAS RECEIVING FILL MATERIAL SHALL BE PREPARED BY REMOVING VEGETATION, NON -COMPLYING FILL, TOPSOIL AND OTHER UNSUITABLE MATERIAL, BY SCARIFYING THE SURFACE TO PROVIDE A BOND WITH THE NEW FILL, AND WHERE SLOPES ARE STEEPER THAN 3 HORIZONTAL TO 1 VERTICAL AND THE HEIGHT IS GREATER THAN 5 FT., BY BENCHING INTO SOUND COMPETENT MATERIAL AS DETERMINED BY A SOILS ENGINEER. EXCAVATION NOTE EXCAVATION MATERIAL SHALL BE WASTED ON -SITE AS GRADING PLAN ALLOWS. ALL EXCESS CUT MATERIALS SHALL BE HAULED OFF -SITE TO AN APPROPRIATE LOCATION. GRADING QUANTITIES CUT = 412.21 C.Y. FILL = 371.25 C.Y. NET = 40.96 C.Y. (CUT) THIS CALCULATION IS FOR REVIEW AND PERMITTING PURPOSES ONLY. THE NUMBERS SHOWN ARE GENERATED FROM THE FINISHED GROUND SURFACE TO THE EXISTING GROUND ACCORDING TO LIDAR INFORMATION. CONTRACTOR SHALL DO THEIR OWN CALCULATION BASED ON THE INFORMATION PROVIDED WITHIN THESE PLANS. THE QUANTITIES MAY VARY BASED ON THE FOLLOWING FACTORS: 1. SHRINK/SWELL OF EXISTING SOILS 2. VARIANCE OF VEGETATION THICKNESS AND UNSUITABLE TOPSOIL 3. CALCULATIONS DO NOT INCLUDE ASPHALT, CONCRETE AND GRAVEL QUANTITIES ASSOCIATED WITH BUILDING FOUNDATIONS AND DRIVEWAYS. 4. TRENCHING EXCAVATION FOR PROPOSED UTILITIES VERIFICATION NOTE ALL EXISTING UTILITIES IN THE CONSTRUCTION AREA SHALL BE IDENTIFIED AND VERIFIED FOR DEPTH AND LOCATION PRIOR TO ANY CONSTRUCTION ACTIVITIES SO TO IDENTIFY ANY POTENTIAL CONFLICTS WITH PROPOSED CONSTRUCTION. CONTACT PROJECT ENGINEER IMMEDIATELY IF ANY CONFLICTS ARE IDENTIFIED. PRIOR TO ANY CONSTRUCTION ACTIVITIES, VERIFY EXISTING TOPOGRAPHY IS CONSISTENT WITH WHAT IS SHOWN ON PLANS AND IF THERE ARE ANY POTENTIAL CONFLICTS WITH PROPOSED CONSTRUCTION ACTIVITIES. CONTACT PROJECT ENGINEER IMMEDIATELY IF ANY CONFLICTS ARE IDENTIFIED. CALL 811 AT LEAST 48 HOURS BEFORE YOU DIG I II \W WM 1 ONF.# �K> s OF W�I+1, SHEET TITLE: GRADING PLAN ZINK RESIDENCE CLIENT: JASON ZINK PO BOX 2483 BELFAIR, WA 98528 CONTACT: JASON ZINK PHONE: (360)440-4368 GRAPHIC SCALE 0 20 40 1 INCH = 20 FEET (22"x34") 1 INCH = 40 FEET (11"x17") uJ 0_ / / 22.8 LF 4" ADS N-12 @1.0% / ZINK RESIDENCE A PORTION OF SECTION 13, TOWNSHIP 21N, RANGE 2, W.M., ROOF/YARD DRAINAGE NOTES GRAPEVIEW, MASON COUNTY, WASHINGTON / 29.3 LF 4"0\ADS N-12 @23.6% RDCO RIM=250.16 IE 4"0=248.60(E,S) U RDCO RIM=250.33 IE 4"0=248.83(E) z / / ........... ...... ...... • . • ....... , . . . . . . .... . ..... ... . • / (OR AS PER GEOTECHNICAL RECOMMENDATION) f ( 15.5 LF4'.,KADS N-12 1.0% RDCO RIM=243.19 IE 4"0=241.69(W,S) Ilk ger lb° r - 49.*A600 48w. II FAN 4W • 44"v i Er- *Avv .11 •• sr/ •do. 40, "4* 4 4fr• • RDCO RIM=243.13 IE 4"0=241.53(W,S) 250/ RDCO RIM=250.15 IE 4"0=248.65(E) SEE DETAIL (TYP.) 58.5 LF 4"0 ADS N-12 @14.6% RDCO RIM=243.09 IE 4"0=240.96(N,W,E) ...... • . • . . • " .. . . .. ... < . . ONO 4-c'z / 1 / / 7 0 / / 57.2 LF 4"0ADS N-12 @1.0% / -11.8 LF 4"0ADS N-12 @4.7% 50 LF 6"0 PERFORATED / ADS N-12 @0.0% / / / / / / / / / / / / / / / / / / / / / / / / / 4, /4, tr) cNi V I / y / / ---- / / / / 1 / / _ ..../ ..-/ . - - - - - / / / / / / ' I 3" CRUSHED SURFACING TOP COURSE NATIVE MATERIAL COMPACTED TO 95% MIN. / RDCO RIM=229.45 IE 6"0= 226:45(NE) / 7 \\ • / I / / / 15.0' DRIVEWAY 2.0% (TYP) I /i YD RIM=242.91 (LP) IE 4"0=240.41(W) IE 6"0=240.24(SE) .'• 67.6 LF 4"0 ADS 266 4 N-12 @16.0% f / SEDIMENT CONTROL STRUCTURE 7- W/SEDIMENT CONTROL TEE SEE DETAIL z 7- / / 7 . • • RIM = 229.45 / IE 6"0=226.45(NW,SW) 50 LF DISPERSION TRENCH „ WI NOTCHED BOARD - SEE DETAIL 2.0' CRUSHED ROCK TRANSITION 5.0% MAX ®DRIVEWAY CROSS SECTION NOT TO SCALE 10' yr- FLOwp TED 15-% Arty Atty / 10" 9" 8-3/4" 1-1/4" 2' 3000 psi CLASS C CONCRETE (TYP.) (IN TRAFFIC BEARING AREAS) 5/8" '41111V4 Lk.N..\ 7" 7-3/4" 8" 15" CAST IRON RING AND COVER -2-7/8" 12"0 FIBRE JOINT PACKING 45' (1/8) BEND 1" LETTERING OPTIONAL RAISE - 1/2" WIDE BORDER 1 /2" NOTES 1. ALTERNATIVE COVER SYSTEM MAY BE SUBMITTED FOR APPROVAL BY OWNER/ENGINEER. 2. PIPE MATERIAL AS SPECIFIED BY ENGINEER. 3. PIPE DIAMETER AS SHOWN PER PLAN. 2' 0" 4-3/4" JP-1 Il -4-PLUG TO BE SEALED IN SAME MANNER AS MAIN MAIN JOINTS CO.STORM SEWER CLEAN OUT DETAIL NOT TO SCALE 3 1. CONTRACTOR SHALL REFER TO ARCHITECTURAL PLANS FOR EXACT LOCATIONS OF DOWNSPOUTS 2. ALL ROOF/YARD DRAIN PIPE SHALL BE 4"0 HAVING A MINIMUM SLOPE OF 1.0% UNLESS OTHERWISE SPECIFIED ON PLANS 3. PIPE SHALL HAVE A MINIMUM COVER OF 1.0' IN NON -TRAFFIC BEARING AREAS AND 2.0' IN TRAFFIC BEARING AREAS UNLESS OTHERWISE SPECIFIED ON PLANS 4. PIPE SHALL BE ADS N-12 OR APPROVED EQUIVALENT UNLESS COVER IS LESS THAN 2.0' IN TRAFFIC BEARING AREAS. IN THIS CASE, DUCTILE IRON PIPE OR APPROVED EQUIVALENT SHALL BE USED. 5. THE ROOF AND YARD DRAIN SYSTEM SHOWN IS A RECOMMENDED SOLUTION. CONTRACTOR CAN ADJUST SYSTEM AND ADD SDCO'S AND YARD DRAINS AS NEEDED SO TO COLLECT ALL ROOF AND YARD DRAINAGE AND CONVEY TO INFILTRATION TRENCH IDENTIFIED ON THE PLAN. CONTACT PROJECT ENGINEER IF CONFLICTS ARISE. 6. YARD DRAINS SHALL BE ADDED AS NEEDED TO ENSURE THAT NO STANDING WATER IS ALLOWED 7. ALL SDCO'S AND COVERS LOCATED IN TRAFFIC AREAS SHALL BE TRAFFIC BEARING BAND FINE MESH SCREEN TO PIPE W/ S.S. BANDING MIN. SLOPE 0.000 FT/FT BAND PIPE SUPPORTS TO SIDEWALL W/ STAINLESS STEEL (S.S.) BANDING (2 PLACES, TYP.) BAND FINE MESH SCREEN TO PIPE W/ S.S BANDING SEDIMENT CONTROL STRUCTURE NOT TO SCALE FLOW DISPERSION TRENCH NOT TO SCALE DISPERSION AND FLOWPATH NOTES 1. DISPERSION SHALL BE ACCOMPLISHED VIA DISPERSION TRENCH AND SHEET FLOW DISPERSION. 2. ALL VEGETATIVE FLOWPATHS SHOWN SHALL BE KEPT AS NATIVE VEGETATION IF AT ALL POSSIBLE. 3. IF NATIVE VEGETATION IS REMOVED OR DISTURBED, IT SHALL BE IMMEDIATELY SEEDED AND RE-ESTABLISHED W/ NATIVE VARIETIES. 4. FLOWPATH AREAS SHALL BE MAINTAINED AS VEGETATIVE 5. FLOWPATHS LENGTH AND WIDTH SHALL BE PER PLAN 6. DISPERSION FLOWPATH AREAS CANNOT OVERLAP ANY SEPTIC SYSTEM OR DRAINFIELDS. 7. ROOF AREAS SHALL BE ROUTED TO DISPERSION FEATURES AS SHOWN. SOLID LID 'T 6" 0 MIN. \\_ TYPE 1 CB SHALL BE UTILIZED VERIFICATION NOTE ALL EXISTING UTILITIES IN THE CONSTRUCTION AREA SHALL BE IDENTIFIED AND VERIFIED FOR DEPTH AND LOCATION PRIOR TO ANY CONSTRUCTION ACTIVITIES SO TO IDENTIFY ANY POTENTIAL CONFLICTS WITH PROPOSED CONSTRUCTION. CONTACT PROJECT ENGINEER IMMEDIATELY IF ANY CONFLICTS ARE IDENTIFIED. PRIOR TO ANY CONSTRUCTION ACTIVMES, VERIFY EXISTING TOPOGRAPHY IS CONSISTENT WITH WHAT IS SHOWN ON PLANS AND IF THERE ARE ANY POTENTIAL CONFLICTS WITH PROPOSED CONSTRUCTION ACTIVITIES. CONTACT PROJECT ENGINEER IMMEDIATELY IF ANY CONFLICTS ARE IDENTIFIED. CALL 811 AT LEAST 48 HOURS BEFORE YOU DIG ENGINEERING•LLC CIVIL ENGINEERS tv SURVEYORS ru LAND PLANNERS Phone: 253-857-5454 « Fax: 253-509-0044 — info@contourpllc.com Mailing Address: P.O. Box 949, Gig Harbor, WA 98335 Physical Address: 4706 97th Street NW, Suite 100, Gig Harbor, WA 98332 .1,10 F As OT W4Silt.tA, .w'Ao • - 1,, -.. OA " P SHEET TITLE: DRAINAGE PLAN, NOTES • AND DETAILS ZINK RESIDENCE CLIENT: JASON ZINK PO BOX 2483 BELFAIR, WA 98528 CONTACT: JASON ZINK PHONE: (360)440-4368 DESIGNER: K. MAUREN ENGINEER: J. HAUG DRAWN: M. DOUGLASS S13 T21 N RO2E WM DATE: 2018.10.18 REVISED: PROJECT: 18-051 DWG NAME: 18-051-C SHEET REV. C5 5 OF 5