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A PORTION OF THE NW 1/4 OF THE SW 1/4 AND A PORT{ON OF THE SW 1/4 OF THE NW 1/4 OF SECTION 12, TOWNSHIP 28 NORTH, RANGE 4 EAST, W.M. - SNOHOMISH COUNTY, WASHINGTON <br /> SEQUENCE OF o 20 4o ao <br /> CONSTRUCTION NOTES ' <br /> 1. HOLD A PRE-CONSTRUCTION MEETING WITH <br /> CITY AND OBTAIN REMAINING REQUIRED SCA�E: i INCH =40 FEET <br /> I � � � ' � � 4 I 2. ESTABL SH LIMITS OF DISTURBANCE <br /> , � �ui� � d �� � 4 � ,.A i � `�,-��, . .,, v �' (�. :4) w� (n\: Y`�,,�� � )4A"'�'� ? ri r� ,' - I � <br /> . � U;i _) .Y� <br /> � r={ ;� ri .i::�. �I; -�;'i �,. ;,, -t"; <<; �, „ "', `�, � •' :` f,' _.. , ,.,_ EXISTING CURB TO BE REMOVED <br /> , �- �r � .� E�;,, _ �� �. _.� <br /> � LEGEND <br /> "` `' "' '� ^ �' f'�� �'� � � ` ' " ' " " " "' � I 3. INSTALL STABILIZED CONSTRUCTION ENTRANCES. <br /> -- � ----- y M 4. CONSTRUCT SILT FENCING AND CONSTRUCTION EXISTING PAVEMENT OR SIDEWALK ' <br /> _ _ - _ _ - - - - - ==�= •___�- - _�_�== �� � __�,� , � <br /> ��� _ _��� _ _ �� __ FENCING ON-SITE. TO BE REMOVED y <br /> _-_ LIMITS OF DISTURBANCE ¢ <br /> �� _=��= =�___ - - - - - - - <br /> _ - _ - <br /> (. 5. PREPARE TEMPORARY PARKING AftEA. ' <br /> � � a o � TEMPORARY SILT FENCE i <br /> LIMITS OF CLEARING �: �. � � J-J I , I 6. CONSTRUCT TNE SEDIMENT TRAPS AND (PER COE STANDARD DET 214) � i <br /> AND GRADING (TYP) TEMPORARY SILT +--+ � WTERCEPTOR SWALES WITH APPROPRIATE � � <br /> FENCE (TYP) � OUTFALL STRUCTURES. INTERCEPTOR SWALES ° °-`r ORANGE CONSTRUCTION D-1.0 <br /> REMOVE PAVEMENT, CURB, AND ( ARE TO SLOPE TOWARD SEDIMENT TRAP WITH FENCE , ! <br /> � � ROCK CHECK DAMS SPACED SUCH THAT THE � 4 <br /> SIDEWALK FOR iNSTAL�ATION OF --- TEMPORARYINTERCEPTOR SWALE � ; <br /> � , `, � WATER CONNECTION. PATCH - TIP OF THE DOWNSTREAM DAM IS NO LOWER (pER COE STANDARD DETAIL 204) � ' <br /> ' � � � THAN THE BOTTOM OF THE NEXT UPSTREAM i � <br /> PAVEMENT PER COE STANDARD I <br /> � � DETAIL 316. i � DAM. � ROCK CHECK DAM � � <br /> � � (PER COE STANDARD DETAIL 206) ' <br /> ` � , `�, `, ORANGE CONSTRUCTION I 8. CONSTRUCT TEMPORARY STORM DRAIN PIPES <br /> AND OUTLET PIPES. p <br /> I ,` i. ti FENCE (TYP) I� � TEMPORARY WLET PROTECTION Z <br /> . . � 1 y. 4_ 1�. � <br /> �. � �I 9. INSTALL RIP RAP AROUND TEMPORARY INLET <br /> � � � � I , ,_„ ., AND OUTLET STRUCTURES. RIP RAP PAD � � <br /> I � � � 10. SCHEDULE AN EROSION CONTROL INSPECTION � � Z M <br /> ' �'� ,`. I WITH THE CITY. rrr 0 � � � o <br /> � �J��� � CONSTRUCTION ENTRANCE � <br /> TEMPORARY ' ` `",, � �' "'� (PER COE STANDARD DETAIL 201) � w � <br /> INTERCEPTOR � TEMPORARY 11. CLEAR AND GRUB THE SITE AS CONSTRUCTION � � a � o <br /> z SWALE (TYP) INTERCEPTOR `� � � ACTIVITIES REQUIRE. � � <br /> SWALE (TYP) � TEMPORARY SEDIMENT POND <br /> O I `,_ , `-. " � � � 12. SPRAY ALL VEGETATION WITH INDUSTRIAL (PER COE STANDARD DETAILS <br /> ' ' ` '� � STRENGTH HERBICIDE 217 AND 218) <br /> Q~ � S RF 0 E 0 D <br /> __. , � '_ � U A D UN UP. o <br /> � -_- _ ..., � � -� �-_ � -�_ � �-�.� � � <br /> � .. <br /> _ I <br /> � � F � 13. . E ( ER COE S DARD DETAIL 21 ) <br /> �,��, <br /> � - -- � - ., ,., ,. '.., �..�� TAN <br /> � �. �� � N�R O�R SE � <br /> Z _.__ ��. � Y � ECESSARY. <br /> _ � , - -_ �., . �, <br /> �, �s BEGIN ROUGH GRADIN T E � � � <br /> DIMENT POND RISER <br /> _ ,, _. , , INTERCEPTOR SWALES AS N <br /> , _ __. - �' <br /> � � <br /> + ` _ <br /> � �. �_ ,.., � ,, �� ._ _ _ �' ' - - -- ,. } _. ' \�/ PIPE SLOPE DRAIN � � � � <br /> � ,., <br /> '�, �' .,, � - _.__ " ' � ��, '' -' , ,' ., � __� 14. TEMPORARILY SEED DENUDED AREAS. � \ (PER COE STANDARD DETAIL 205) j � � <br /> `'' .. ( � f . <br /> Z �_ ., , _ ___. �., _ - _ �- <br /> • , ,,. '- __ ' - �•,, , '.. �. _ <br /> \` .` , . - � . �, ,\ '' . - -�.- �,�. � _ _ � 15. START CONSTRUCTION OF BUILDING PADS <br /> .. � � �.. -- �` � -- <br /> ROCK CHECK ~ 4` <br /> � � �� ' � `�� `� � - "' � � � ON BUI D NG PERMIT APPROV ND <br /> I _� � ` -� � � --. � _ � (UP L I A�) A <br /> DAM (TYP) `' � ` IRRIGATION BYPASS STRUCTURES. <br /> � `� ` -- � � � <br /> �, <br /> U �, �,_ � � � .� � _ _ . u1 � ' - -- ' �' � ` _ _� � `' - '` ' � <br /> � <br /> �, _.. �. <br /> � - � , , � � � � � _ � _ <br /> . _ __. _� <br /> , ,., _ - <br /> - � � �. ��. / ' �' �i � _ __ - , k <br /> � , _ _ _ _ � , _ �- . � I <br /> :- ___ � - . <br /> _ _ ; , <br /> _ <br /> � ,�. � ___ -; _ ' 1 _ . <br /> O � =_ __ - _ __ - _ _ A. <br /> -� ___ - _ _ <br /> , f ,_ <br /> . _= ___ _ - ___ _ � � ALL ENVIRO NTALLY SENS TIVE AREAS AND THEIR BUFFERS SHALL E FLAGGED OR ASY <br /> � � � " � �� _�� - �" � �' �--' _._ � � � - IDENTIFICATIONEBEFORE CLEAIRING TAKES PLACE. AFTER THESE AREASBARE FLAGEDFANDECLEARING �,��. Y <br /> . J, - r <br /> O � I ROCK CHEGK ' ^ ^ � I LIMITS ARE APPROVED, AN AREAWIDE ENOUGH TO INSTALL A SILT FENCE AT THE CLEARING uMITS, y�}�,R°� , <br /> ' ; � ' ~' � '; � �!- BY HAND OR BY MECHANICAL METHODS, MAY BE CLEARED. THE TOP OF THE SILT FENCE SHALL 8E ,� � '� <br /> 1 t� I <br /> � DAM (TYP) , �/ � � -, i 1( n . REFLAGGED AFTER INSTALLATION. IF A SILT FENCE IS NOT REQUIRED, THE AREA SHA�L BE o R � ^�'�' 6 <br /> � � 1 � ? ; � � � ,t�"Jf, _. DELWEATED USING AN ORANGE BARRIER. �,�. �' �� o <br /> I o �. <br /> � � � � � � � � � � <br /> � `.t � I ; ��� ; � � ��. ����, B. ALL PERIMITER EROSION AND SEDIMENT CONTROL SHALL BE CONSTRUCTED, OPERATIONAL, AND � P�das �o4°j� <br /> � � ' � ' , � i�; , INSPECTED BY THE PUBLIC WORKS INSPECTOR PRIOR TO WITIATION OF CLEARING AND GRUBBING � �'b�p Q <br /> W � , ii ' ; OPERATIONS. `� <br /> i � � ; , <br /> i I ' ' � C. DANGER TREES SHALL BE IDENTIFIED THROUGH A JOINT INSPECTION INVOLVING BOTH THE <br /> W I REMOVE PAVEMENT, CURB, AND � ; ; � � � DEVELOPER AND PUBLIC WORKS INSPECTOR. NO TREES SHALL BE REMOVED UNTIL PERMISSION IS <br /> _ ' ! SIDEWALK FOR WSTALLATION OF � ; � <br /> ;_, OBTAINED FROM THE APPROPRIATE PARTIES <br /> � I ; i DRIVEWAY. PATCH PAVEMENT <br /> i PER COE STANDARD DETAIL 316. ��; D. WHERE POSSIBLE, NATURAL VEGETATION SHALL BE MAINTAINED FOR ER0510N AND SEDIMENT <br /> W . . �! ��� CONTROL. �o 0 0 <br /> r� <br /> i � ': - rn o0 0 <br /> ( M M Z <br /> W i � � i � E. AS CONSTRUCTION PROGRESSES AND SEASONAL CONDITIONS DICTATE, THE EROSION CONTROL � � � <br /> � I i � � 5x"' FACILITIES SHALL BE MAINTAINED AND/OR ALTERED AS REQUIRED TO ENSURE CONTINUING �N a <br /> i TEMPORARY INLET i , � EROSION/SEDIMENT CONTROL ' vv � <br /> � P R O T E C T I O N (T Y P) �� F, ALL TEMPORARY EROSION AND SEDIMENT CONTROL BMPs SHALL BE MAINTAINED IN A SATISFACTORY ~ " <br /> I � , -- � CONDITION UNTIL SUCH TIME THAT CLEARING AND/OR CONSTRUCTION IS COMPLETED, PERMANENT . ' <br /> � ' ,' � � DRAINAGE FACILITIES ARE OPERATIONAL, AND THE POTENTIAL FOR EROSION HAS PASSED. <br /> ! G. AT A MINfMUM, EROSION AND SEDIMENT CONTROL FACILITIES SHALL BE MA�NTAINED MONTHLY, OR <br /> � , � � �� FOLLOWING EACH RUNOFF PRODUCING STORM, TO ENSURE PROPER OPERATION OF ALL EROSION AND <br /> I � I SEDIMENT CONTROL FACILITIES. <br /> � � H. APPROVAL OF THIS PLAN DOES NOT CONSTITUTE AN APPROVAL OF DESIGN, SIZE, NOR LOCATION OF ;"i '` <br /> • �' PERMANENT PIPES. RESTRICTORS, OR DETENTION FAC�LITIES; BUT IS AN APPROVAL OF ERaSION AND ` <br /> TEMPORARY �I � SEDIMENT CONTROL BMPS ONLY. �� v o <br /> TEMPORARY CONSTRUCTION � <br /> - _ _ _ INTERCEPTOR ENTRANCE � / � °' <br /> � � I I. THE PUBLIC RIGHT-OF-WAY SHALL BE KEPT CLEAN. TRACKWG OF MUD AND DEBRIS FROM THE SITE �a � ' _ <br /> SWALE (TYP) - � ¢ <br /> � WILL NOT BE ALLOWED. FAILURE TO COMP�Y WITH THIS CONDITION WI�L RESULT IN ALL WORK ON . � � � <br /> N � i � THE SITE BEING STOPPED. � � � Qi <br /> � /�0 I /�OUI 0� O��OU �--; � �:�� � p �'^ � <br /> � - _ V' �J '.J �� '� ',""' J. THE WASHINGTON STATE CLEAN AIR ACT REQUIRES THE USE OF ALL KNOWN, AVAILABLE, AND � � � <br /> � - - - - - - b�_ ; REASONABLE MEANS OF CONTROLLING AIR POLLUTION, INCLUDING DUST. DUST CAN BE CONTROLLED -_- .-+ cn m <br /> . _ _ _ _ _ _ _ _ _ _ _ _ _ , � BY WETTING EXPOSED SOILS, WASHING TRUCK WHEELS BEFORE THEY LEAVE THE SITE, AND <br /> � �� � ��� � � ��� �v I T <br /> � - - - _ _ _ INSTALLING AND MAINTAINING ROCK CONSTRUCTION ENTRANCES. CONSTRUCTION VEHICLE TRACK-OU <br /> � � ��Y.:. �.:�:. �� - � - � � - � � � - <br /> � � � � � _ � � � _ � � I <br /> o �� � w ��_ - ��� � � -� ����� ��� ��_.��� � - -��� - IS A MAJOR SOURCE OF DUST AND ANY EVIDENCE OF TRACK-OUT CAN TRIGGER FINES FROM THE <br /> N ORANGE CONSTRUCTION �LIMITS OF CLEARING �� DEPARTMENT OF ECOLOGY OF THE PUGET SOUND AIR POLLUTION CONTROL AGENCY. <br /> � FENCE (TYP) AND GRADING (TYP) REMOVE PAVEMENT, CURB, AND I K. EVERY EFFORT SHALL BE MADE TO CLOSE UTILITY LINES BY THE END OF THE DAY AND MATERIAL Z <br /> � SIDEWALK FOR INSTALLATION OF I I EXCAVATED DURING UNDERGROUND UTILITY CONSTRUCTION SHALL BE P�ACED ON THE UPHILL SIDE Q <br /> DRIVEWAY AND WATER OF TRENCHES (WHERE CONSISTENT WITH SAFETY AND SPACE CONSIDERATIONS). J <br /> � CONNECTION. PATCH PAVEMENT <br /> -o ' PER COE STANDARD DETAIL 316. � � L. CONSTRUCTION EQUIPMENT AND VEHICLES MUST BE MAINTAINED SO THEY DO NOT LEAK FUELS OR / � �.LJ � <br /> o LUBRICANTS. DURING CONSTRUCTION, A STAGWG AREA MUST BE SPECIFIED FOR ALL VEHICLE `J a U <br /> o MAINTENANCE ACTIVITIES. THE STAGING AREA MUST BE LOCATED WELL AWAY FROM ALL DRAINAGE � <br /> �� COURSES. WHERE POSSIBLE, ALL STORMWATER FROM RELATED MAINTENANCE AREAS MUST BE <br /> � GENERAL EROSION CONTROL NOTES DIRECTED TO THE SANITARY SEWER, RATHER THAN THE STORMWATER SYSTEM. � � � W <br /> � 1. THE CONTRACTOR SHALL BE RESPONSIBLE AT ALL TIMES FOR PREVENTING SILT-LADEN RUNOFF FROM DISCHARGING FROM THE <br /> �' PROJECT SITE. FAILURE BY THE CONTRACTaR CAN RESULT IN A FINE. THE DESIGNATED TEMPORARY CONTACT PERSON NOTED 9. THE CONTRACTOR PERFORMING THE WORK SHALL BE RESPONSIBLE FOR PROVIDING ADEQUATE TRAFFIC CONTRO� AT ALL TIMES M. DURING CONSTRUCTION ACTIVITIES, ALL SPILLS OF FUEL AND HAZARDOUS MATERIALS MUST BE � Q � � � <br /> � ON THIS PLAN MUST BE AVAILABLE FOR CONTACT BY TELEPHONE ON A 24 HOUR BASIS THROUGHOUT CONSTRUCTION AND DURING CONSTRUCTION ALONGSIDE OR WITHIN ALL PUBLIC ROADWAYS. CONTAINED AND REMOVED IN SUCH A MANNER AS TO PREVENT THEIR ENTERING THE WATERS AND <br /> o UNTIL THE PROJECT HAS BEEN COMPLETED AND APPROVED BY THE GOVERNMENTAL AGENCY WITH JURISDICTION. SOILS OF THE STATE. CLEANUP OF SPILLS MUST TAKE PRECEDENCE OVER OTHER WORK ON SITE. Q � W Q <br /> 0 10. THIS APPROVED "TEMPORARY EROSION AND SEDIMENTATION CONTROL PLAN�' MUST BE IMPLEMENTED PRIOR TO ANY SITE WORK. Q � � z <br /> / 2. THE IMPLEMENTATION OF THESE ESC PLANS AND THE CONSTRUCTION, MAINTENANCE, REPLACEMENT AND UPGRADING OF THESE SEE THE PLANS AND DETAILS FOR FURTHER INFORMATION. N. DURING CONSTRUCTION, ALL PETROLEUM PRODUCTS, CHEMICALS, AND BUILDING MATERIALS THAT r^ � � � <br /> a ESC FACILITIES IS THE RESPONSIBILITY OF THE CONTRACTOR FROM THE BEGINNING OF CONSTRUCTION UNTIL ALL CONSTRUCTION COULD CONTAMINATE RUNOFF MUST BE STORED IN A LINED COVERED AREA. AN IMPERVIOUS BERM uJ <br /> � IS COMPLETED AND APPROVED BY THE GOVERNMENTAL AGENCY WITH JURISDICTI�N AND THE SITE IS STABILIZED. 11. THE CONTRACTOR SHALL NOTIFY THE OWNER AND THE ENGINEER IN THE EVENT OR DISCOVERY OF POOR SOILS, GROUNDWATER MUST BE CONSTRUCTED AROUND THE PERIMETER OF THE STORAGE AREA. THE STORAGE AREA W J � � z <br /> OR DISCREPANCIES IN THE EXISTING CONDITIONS A5 NOTED ON THE PLANS. MUST BE LOCATED AWAY FROM ENVIRONMENTALLY SENSITIVE AREAS. � W <br /> % 3. THE BOUNDARIES OF THE CLEARING LIMITS SHOWN ON THIS PLAN SHALL BE CLEARLY FLAGGED AND INSPECTED BY THE LOCAL � O <br /> o JURISDICTION PRIOR TO ANY CLEARING OR CONSTRUCTION TAKING PLACE. DURING CONSTRUCTION, NO DISTURBANCE BEYOND 12. MAXIMUM SLOPES SHALL BE 2: 1 HORIZ: VERT FOR FILL SLOPES, AND 2: t HORIZ: VERT FOR CUT SLOPES. 0. IN ORDER TO EXPEDITE PLAN REVIEW, A HAZARDOUS MATERIALS INVENTORY LIST SHALL BE � � Q <br /> N THE FLAGGED CLEARING �IMITS SHALL BE PERMITTED. THE FLAGGING SHALL BE MAINTAINED BY THE OWNER AND/OR PROVIDED AS A PART OF THE SUBMITTAL FOR BUILDING PERMITS. THE STORAGE, HANDLING AND o� � <br /> ¢ CONTRACTOR UNTIL ALL CONSTRUCTION IS APPROVED. 13. ROCKERIES OR OTHER RETAINING FACILITIES EXCEEDING 4' IN HEIGHT REQUIRE A SEPARATE PERMIT. USE OF HAZARDOUS MATERIALS MUST BE IN COMPLIANCE WITH ARTICLE 80 OF THE UNIFORM FIRE W <br /> � CODE, 1991 EDITION. _ - � Z O <br /> � 4. THE EROSION AND SEDIMENTATION CONTROL FACIL�TIES SHOWN ON THIS PLAN ARE TO BE CONSIDERED ADEQUATE BASIC 14. ALL AREAS DISTURBED DURING CONSTRUCTION WHERE PERMANENT LANDSCAPING WILL NOT BE PROVIDED WITHIN 60 DAYS � <br /> � REQUIREMENTS FOR THE ANTICIPATED SITE CONDITIONS. DURING CONSTRUCTION, DEVIATIONS FROM TH�S PLAN MAY BE SHALL BE HYDROSEEDED, OR OTHERWISE STABILIZED, AS REQUIRED. STRAW MULCHING OR PLASTIC SHEETING ARE ACCEPTABLE PLAN APPROVED � 5 <br /> � NECESSARY IN ORDER TO MAINTAIN WATER QUALITY. ALTERNATIVES TO TEMPORARY HYDROSEEDING DURING PERIODS OF LOW GROWTH. L <br /> °' � -Zy/ LLJ <br /> � 5. ALL EROSION AND SEDIMENTATION CONTROL MEASURES SHALL BE INSPECTED BY THE CONTRACTOR ON A FREQUENT BASIS 15. SLOPE STABILIZATION. CUT AND FILL SLOPES SHALL BE CONSTRUCTED IN A MANNER THAT WILL MINIMIZE EROSION. ROUGHENED Q <br /> j AND IMMEDIATELY AFTER EACH RAINFALL, AND MAINTAINED AS NECESSARY TO INSURE THEIR CONTINUED FUNCTIONING. ALL SOIL SURFACES ARE PREFERRED TO SMOOTH SURFACES. INTERCEPTORS SHOULD BE CONSTRUCTED AT THE TOP OF LONG, � <br /> � SEDIMENT MUST BE REMOVED FROM SILT FENCES, STRAW BALES, SEDIMENT PONDS, ETC. PRIOR TO THE SEDIMENT REACHING STEEP SLOPES WHICH HAVE SIGNIFICANT AREAS ABOVE THAT CONTRIBUTE RUNOFF. CONCENTRATED RUNOFF SHaULD NOT BE <br /> °J 1/2 ITS MAXIMUM POTENTIAL DEPTH. ALLOWED TO FLOW DOWN THE FACE OF A CUT OR FILL SLOPE UNLESS CONTAINED WITHIN AN ADEQUATE CHANNEL OR PIPE ��� [RouoM puBUCwoRKs <br /> > SLOPE DRAIN. WHEREVER A SLOPE FACE CROSSES A WATER SEEPAGE PLANE, ADEQUATE DRAINAGE OR OTHER PROTECTION DEPARTMENT O � <br /> % 6. AT NO TIME SHALL CONCRETE, CONCRETE BYPRODUCTS, VEHICLE FLUIDS, PAINT, CHEMICALS, OR OTHER POLLUTING MATTER BE SHOULD BE PROVIDED. IN ADDITION, SLOPES SHOULD BE STABILIZED IN ACCORDANCE WITH ITEM (17) ABOVE. �"�� O <br /> � A R/suc wo0.N5 vERMR IS � <br /> o PERMITTED TO DISCHARGE TO THE TEMPORARY OR PERMANENT DRAINAGE SYSTEM, OR TO DISCHARGE FROM THE PROJECT SITE. �cor«co F«faa ,o n.R,nw <br /> o, � �qr consraucnon on ixts <br /> 16. STORM DRAIN INLET PROTECTION. ALL STORM DRAIN INLETS MADE OPERABLE DURING CONSTRUCTION SHALL BE PROTECTED SO P0.01ER, AVPROVAI Fon rxu � �� <br /> � 7. THE CONTRACTOR PERFORMING THE WORK SHALL MAINTAIN A SET OF THE APPROVED CONSTRUCTION DRAWINGS ON SITE AT THAT STORMWATER RUNOFF SHALL NOT ENTER THE CONVEYANCE SYSTEM WITHOUT FIRST BEING FILTERED OR OTHERWISE PRO]ER t5 �o�„�n�„.� �en <br /> (D CURRENT A � MID D��.� <br /> o ALL TIMES WHILE CONSTRUCTION IS IN PROGRESS. TREATED TO REMOVE SEDIMENT. EXv�nes��� -�"ura�ss <br /> � � PERHfT FOA fANSTRUCTiON NAS � <br /> m 8. IT SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR PERFORMING THE WORK TO OBTAIN ALL NECESSARY PERMITS FROM 17. REFER TO PROJECT SPECIFICATIONS FOR SURFACE WATER POLLUTION PREVENTION PLAN (SWPPP) NARRATIVE. n+eEn �EENtffUEO. Knowwhat�SbeIOW. <br /> THE LOCAL JURISDICTION PRIOR TO COMMENCING ANY WORK WITHIN THE PUBLIC RIGHT-OF-WAY. CaII befOC@ OU (II <br />