Trailway 9-10_plan set_draft_2006-12-18

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ROW 0 23 50 Scala inScela in fe® GENERAL EROSION CONTROL NOTES: r SILT FENCE J J—HOOK \ CONSTRUCTION \ LIMIT i ALL EROSION CONTROL MEASURES SHALL BE IN PLACE PRIOR TO ANY REMOVAL WORK AND/OR DISTURBING ACTIVITIES SHALL BE MAINTAINED UNTIL THE POTENTIAL FOR EROSION HAS BEEN ELIMINATED. 1. EXPOSED SOILS WILL BE STABILIZED WITHIN 3 TO 7 DAYS OF INACTIVITY, DEPENDING ON THE SLOPE OF THESE AREAS, AND IF THEY HAVE A POSITIVE GRADE TOWARDS A SURFACE WATER WITHIN 200 LINEAL FEET. —SLOPES 1:3 OR > MUST BE STABILIZED WITHIN 3 DAYS —SLOPES LESS THAN 1:3 MUST BE STABILIZED WITHIN 7 DAYS —SOME INSTANCES MAY REQUIRE STABILIZATION TO OCCUR MORE THAN ONCE DURING ROUGH GRADING —WORK IN DRAINAGE SWALES OR THE NWP OF ANY SURFACE WATER WILL REQUIRE STABILIZATION WITHIN 24 HOURS. —OUTLETS INTO SURFACE WATERS MUST BE STABILIZED WITH ENERGY DISSIPATION WITHIN 24 HOURS. 2. ALL AREAS NOT BEING WORKED ON FOR A PERIOD GREATER THAN OR EQUAL TO 21 DAYS SHALL HAVE TEMPORARY STABILIZATION APPLIED WITH THE APPROPRIATE MEANS TO PREVENT SOIL LOSS. 3. NO AREAS ARE TO UNDERGO ANY SOIL DISTURBING ACTIVITIES BEFORE WORK BEGINS IN THE AREA 4. CONTRACTOR IS RESPONSIBLE TO COMPLY WITH ALL REQUIREMENTS OF THE NPDES PHASE II CONSTRUCTION GENERAL PERMIT PART IV — CONSTRUCTION ACTIVITY REQUIREMENTS. 5. SILT FENCE MUST BE LOCATED ON THE CONTOUR TO CAPTURE THE OVERLAND, LOW—VELOCITY SHEET FLOW DOWNGRADIENT OF ALL EXPOSED SOILS AND PRIOR TO DISCHARGING TO SURFACE WATERS, OR AFTER THE CONSTRUCTION OF THE PERMANENT STORM WATER MANAGEMENT SYSTEMS WITH THE SILT FENCE J—HOOKED AT A MINIMUM OF 100 FOOT INTERVALS. 6. ALL STORM SEWER INLETS WILL BE PROTECTED FROM THE INTRUSION OF SEDIMENT USING HEAVY DUTY SILT FENCE MNSOT 3886. 7. SEDIMENT DAMAGE FROM STOCKPILES SHALL BE MINIMIZED BY INCORPORATING THE FOLLOWING: —A ROW OF SILT FENCE SHALL BE PLACED 5 FEET FROM THE TOE —ALL STOCKPILES LEFT FOR A PERIOD OF 21 DAYS SHALL HAVE TEMPORARY STABILIZATION B. STREET SURFACES MUST BE SWEPT VATHIN 24 HOURS OF DISCOVERY OF SEDIMENT OR TRACKING. _— _ _ =_ ✓ 132+00_ NSTR(!C ONS L IT �`3xTxO1 .` i'END I 11 \ CONSTRUCTION 134+001 —�— — — \ OW _ SILT ! ✓ \ \ \ / �. ` _ — �.�._ _ — - -FENS'/ vk C\\ LIMIT SILTNCE \\\\\ \\ \ \\ 2559 10. THE CONTRACTOR MUST COMPLY WITH THE REQUIREMENTS REGARDING POLLUTION PREVENTION MANAGEMENT DURING CONSTRUCTION WHERE STAGING AREAS MUST BE VERIFIED AT THE PRECONSTRUCTION MEETING, AND SHALL INCLUDE: —CONCRETE WASHOUT AREAS —SOLID WASTE COLLECTION AND DISPOSAL —TRAILER PARKING —SECONDARY CONTAINMENT —HAZARDOUS WASTE STORAGE CONTAINERS AND SPILL KITS —EXTERNAL WASHING OF TRUCKS MUST BE DONE IN A DEFINED AREAS WITH THE RUNOFF CONTAINED AND PROPERLY DISPOSED 11. MAINTENANCE OF EROSION AND SEDIMENT CONTROL BMPS SHOULD BE COMPLETED AS OUTLINED BELOW: —SILT FENCE REPAIRS SHOULD BE MADE WITHIN 24 HOURS OF DISCOVERY WHEN IT BECOMES NON—FUNCTIONAL OR SEDIMENT REACHES 1/3 THE HEIGHT OF THE FENCE —INLET PROTECTION DEVICES SHOULD BE REPAIRED WHEN THEY BECOME NON—FUNCTIONAL OR SEDIMENT REACHES 1/3 THE HEIGHT AND/OR DEPTH OF THE DEVICE —TRACKED SEDIMENT MUST BE REMOVED WITHIN 24 HOURS OF DISCOVERY OF OFF SITE TRACKING ONTO PAVED SURFACES. —CONTRACTOR IS RESPONSIBLE FOR MAINTAINING ALL BMPS UNTIL WORK HAS BEEN COMPLETED. SITE HAS GONE UNDER FINAL STABILIZATION, AND THE NOTICE OF TERMINATION HAS BEEN SUBMITTED TO THE MPCA OR THE SITE HAS TRANSFERRED OWNERSHIP IN ACCORDANCE WITH PART II.B.5 OF THE CONSTRUCTION GENERAL PERMIT. b � ymm u;N$m b S Z ti b 6am.�e 3aa y M:nsLL N 6 g„Yu-� vvv�� C VI V tin a1 0�7CQQ C$ Mpgt a� O 33 3 z c, J z � ??T Z z W W o LLLUUU mo i W o OD rn 0 W ZJ> ~ a O M Fw Opo O D 0 U z o Z) U O O 20 OF 44 914— 10 -------- _COUNV-�RQ,A.- 129+46, 13.5' LT ;/ _ / X, EL.91� / 130+25, 15' LT CONSTRUCTION LIMIT EL. 917.5 ROW 0 23 50 Scala inScela in fe® GENERAL EROSION CONTROL NOTES: r SILT FENCE J J—HOOK \ CONSTRUCTION \ LIMIT i ALL EROSION CONTROL MEASURES SHALL BE IN PLACE PRIOR TO ANY REMOVAL WORK AND/OR DISTURBING ACTIVITIES SHALL BE MAINTAINED UNTIL THE POTENTIAL FOR EROSION HAS BEEN ELIMINATED. 1. EXPOSED SOILS WILL BE STABILIZED WITHIN 3 TO 7 DAYS OF INACTIVITY, DEPENDING ON THE SLOPE OF THESE AREAS, AND IF THEY HAVE A POSITIVE GRADE TOWARDS A SURFACE WATER WITHIN 200 LINEAL FEET. —SLOPES 1:3 OR > MUST BE STABILIZED WITHIN 3 DAYS —SLOPES LESS THAN 1:3 MUST BE STABILIZED WITHIN 7 DAYS —SOME INSTANCES MAY REQUIRE STABILIZATION TO OCCUR MORE THAN ONCE DURING ROUGH GRADING —WORK IN DRAINAGE SWALES OR THE NWP OF ANY SURFACE WATER WILL REQUIRE STABILIZATION WITHIN 24 HOURS. —OUTLETS INTO SURFACE WATERS MUST BE STABILIZED WITH ENERGY DISSIPATION WITHIN 24 HOURS. 2. ALL AREAS NOT BEING WORKED ON FOR A PERIOD GREATER THAN OR EQUAL TO 21 DAYS SHALL HAVE TEMPORARY STABILIZATION APPLIED WITH THE APPROPRIATE MEANS TO PREVENT SOIL LOSS. 3. NO AREAS ARE TO UNDERGO ANY SOIL DISTURBING ACTIVITIES BEFORE WORK BEGINS IN THE AREA 4. CONTRACTOR IS RESPONSIBLE TO COMPLY WITH ALL REQUIREMENTS OF THE NPDES PHASE II CONSTRUCTION GENERAL PERMIT PART IV — CONSTRUCTION ACTIVITY REQUIREMENTS. 5. SILT FENCE MUST BE LOCATED ON THE CONTOUR TO CAPTURE THE OVERLAND, LOW—VELOCITY SHEET FLOW DOWNGRADIENT OF ALL EXPOSED SOILS AND PRIOR TO DISCHARGING TO SURFACE WATERS, OR AFTER THE CONSTRUCTION OF THE PERMANENT STORM WATER MANAGEMENT SYSTEMS WITH THE SILT FENCE J—HOOKED AT A MINIMUM OF 100 FOOT INTERVALS. 6. ALL STORM SEWER INLETS WILL BE PROTECTED FROM THE INTRUSION OF SEDIMENT USING HEAVY DUTY SILT FENCE MNSOT 3886. 7. SEDIMENT DAMAGE FROM STOCKPILES SHALL BE MINIMIZED BY INCORPORATING THE FOLLOWING: —A ROW OF SILT FENCE SHALL BE PLACED 5 FEET FROM THE TOE —ALL STOCKPILES LEFT FOR A PERIOD OF 21 DAYS SHALL HAVE TEMPORARY STABILIZATION B. STREET SURFACES MUST BE SWEPT VATHIN 24 HOURS OF DISCOVERY OF SEDIMENT OR TRACKING. _— _ _ =_ ✓ 132+00_ NSTR(!C ONS L IT �`3xTxO1 .` i'END I 11 \ CONSTRUCTION 134+001 —�— — — \ OW _ SILT ! ✓ \ \ \ / �. ` _ — �.�._ _ — - -FENS'/ vk C\\ LIMIT SILTNCE \\\\\ \\ \ \\ 2559 10. THE CONTRACTOR MUST COMPLY WITH THE REQUIREMENTS REGARDING POLLUTION PREVENTION MANAGEMENT DURING CONSTRUCTION WHERE STAGING AREAS MUST BE VERIFIED AT THE PRECONSTRUCTION MEETING, AND SHALL INCLUDE: —CONCRETE WASHOUT AREAS —SOLID WASTE COLLECTION AND DISPOSAL —TRAILER PARKING —SECONDARY CONTAINMENT —HAZARDOUS WASTE STORAGE CONTAINERS AND SPILL KITS —EXTERNAL WASHING OF TRUCKS MUST BE DONE IN A DEFINED AREAS WITH THE RUNOFF CONTAINED AND PROPERLY DISPOSED 11. MAINTENANCE OF EROSION AND SEDIMENT CONTROL BMPS SHOULD BE COMPLETED AS OUTLINED BELOW: —SILT FENCE REPAIRS SHOULD BE MADE WITHIN 24 HOURS OF DISCOVERY WHEN IT BECOMES NON—FUNCTIONAL OR SEDIMENT REACHES 1/3 THE HEIGHT OF THE FENCE —INLET PROTECTION DEVICES SHOULD BE REPAIRED WHEN THEY BECOME NON—FUNCTIONAL OR SEDIMENT REACHES 1/3 THE HEIGHT AND/OR DEPTH OF THE DEVICE —TRACKED SEDIMENT MUST BE REMOVED WITHIN 24 HOURS OF DISCOVERY OF OFF SITE TRACKING ONTO PAVED SURFACES. —CONTRACTOR IS RESPONSIBLE FOR MAINTAINING ALL BMPS UNTIL WORK HAS BEEN COMPLETED. SITE HAS GONE UNDER FINAL STABILIZATION, AND THE NOTICE OF TERMINATION HAS BEEN SUBMITTED TO THE MPCA OR THE SITE HAS TRANSFERRED OWNERSHIP IN ACCORDANCE WITH PART II.B.5 OF THE CONSTRUCTION GENERAL PERMIT. b � ymm u;N$m b S Z ti b 6am.�e 3aa y M:nsLL N 6 g„Yu-� vvv�� C VI V tin a1 0�7CQQ C$ Mpgt a� O 33 3 z c, J z � ??T Z z W W o LLLUUU mo i W o OD rn 0 W ZJ> ~ a O M Fw Opo O D 0 U z o Z) U O O 20 OF 44