|
EROSION CONTROL NOTES: SEDIMENT AND EROSION CONTROL FOR
<br />All disturbed ground left inactive for 14 or more days must have temporary or permanent stabilization year round.
<br />For sites with more than ten acres disturbed at one time, or if a channel originates in the disturbed area, one or
<br />more temporary or permanent sedimentation basins shall be constructed. Each sedimentation basin shall have a
<br />surface area of at least one percent of the area draining to the basin and at least three feet of depth and
<br />constructed in accordance with accepted design specifications. Sediment shall be removed to maintain a depth of
<br />GINA PAULUCCI
<br />three feet. The basin discharge rate shall also be sufficiently low as to not cause erosion along the discharge
<br />channel or the receiving water.
<br />Perimeter sediment control measures shall be placed along all down gradient perimeters of the site. If a channel
<br />or area of concentrated runoff passes through the site, perimeter sediment control measures shall be placed
<br />along the channel edges to reduce sediment reaching the channel. All down gradient perimeter sediment control
<br />measures must include a maintenance and inspection schedule.
<br />t !�
<br />Any soil or dirt storage piles containing more than ten cubic yards of material should not be located within 25
<br />feet from a roadway or drainage channel. If remaining for more than 14 days, they shall be stabilized by
<br />mulching vegetative cover, tarps or other means and enclosed with down gradient perimeter sediment controls.
<br />Piles which will be in existence for less than 14 days shall be enclosed with perimeter sediment controls.
<br />Pipe outlets must have energy dissipation installed within 24 hours of connection to waters of the state.
<br />LIGHT
<br />POLE
<br />Inspections and maintenance. The owner shall be responsible for conducting inspections and maintenance of all
<br />erosion and sediment control BMPs on site.
<br />\ \ \ \ I I I I I
<br />Inspections, maintenance, and rainfall on site must be documented and readily available for review. Inspections
<br />1
<br />are required as followed:
<br />Once every seven days on exposed soil areas.
<br />Within 24 hours after a one-half inch or greater rain event over 24 hours.
<br />Once every 30 days on stabilized areas.
<br />As soon as runoff occurs or prior to resuming construction on frozen ground.
<br />Maintenance is required as follows: \\ \k \ /22" HLC DRY / 7 /
<br />When sediment reaches 1/3 the height of the BMP on perimeter control devices, sediment must be removed within \ / /�.HI DRQ
<br />STEEL FENCE POST (T -POSH, MONOFILAMENT GE-OTE)MLE
<br />MINIMUM 5' LONG, FABRIC PER MNDOTTABLE
<br />6' MAXIMUM SPACING. 3886-1.
<br />ATTACH FABRIC TO POST WITH
<br />MINIMUM 3 ZIP TIES (50 LB.
<br />TENSILE) PER POST IN TOP 8"
<br />OF FABRIC.
<br />POST NOTCHES
<br />TO FACE AWAY
<br />FROM FABRIC. LAY FABRIC IN THE TRENCH,
<br />BACKFILL WITH NATURAL
<br />SOIL, AND COMPACT WITH
<br />LIGHT EQUIPMENT PRIOR TO
<br />PLACEMENT OF THE POSTS.
<br />DIRECTION OF
<br />SURFACE FLOW
<br />24" MINIMUM
<br />POST EMBEDMENT
<br />6"
<br />NOTES:
<br />1. SPLICING WILL BE MADE AT OPPOSING SILT FENCE POSTS BY PLACING POSTS
<br />AND SILT FENCE NEXT TO EACH OTHER AND ROTATING 3601.
<br />2. HEAVY DUTY SILT FENCE IS MACHINE SLICED TYPE SILT FENCE THAT IS HAND
<br />INSTALLED IN AREAS INACCESSIBLE TO EQUIPMENT DUE TO SPACE
<br />LIMITATIONS, WET SOILS, STEEP SLOPES, ETC.
<br />A � LIST REYLSION:
<br />//�O`1' \� Apd12008
<br />SILT FENCE
<br />HEAVY DUTY PLare rv°.
<br />tartFsxo�`% EI2D-iC
<br />24 hours of discovery.\
<br />\ \ / // / / � / ,! / / BASSWOOD'-,/ / / / / 9 / \ BASSWOOD
<br />12" CMP
<br />If the perimeter control device is not functional it must be repaired or replaced within 24 hours of discovery. INv=9s5.24 / \ �� / '� / / / I I I --�_� 46"sPRudE / / / \ \ — / �� ------ _
<br />Temporary sediment basins shall be maintained when sediment reaches'/2 the outlet height or Y2 the basin storage °Y / / L� �� / / / / "ASH/ / I I \ _ _ \
<br />/ / / / \
<br />volume. Basins must be drained or sediment removed within 72 hours of discovery. r / / / / / / / / / / / ( I \ \ ��'"�� �' \ �� —--4 ` \� �!ry W � W N o ``'
<br />V / / / INv 89_ $757 / // // / / I i 1 \ \ \ 1 ��`— ` \ �� J \�----��_ \\ �� �N'p N o r =oma
<br />Sediment must be removed from paved surfaces within 24 hours of discovery. I / \ / / // / / // / / / / 1 \ \ \ ' \18"BASSWOOD
<br />Erosion into streets wetlands or water bodies. If eroded soils (including tracked soils from constructionSPC/E
<br />activities enter or appear likely to enter streets, wetlands, or other water bodies, prevention strategies,
<br />cleanup and repair must be immediate with the appropriate approvals from the DNR, MPCA, or any other state,
<br />federal, or local agencies as necessary. The owner shall provide all traffic control and flagging required to /
<br />99 9 /u T IV I
<br />protect the traveling public during cleanup operations. \ / �E /I I I\ \\ \ \\ \\ \\ \ \ I I � N,, ~`'`� °N�FS /I I
<br />Erosion off-site. If erosion breaches the perimeter of the site, the owner shall immediately develop a �\ / //� / / I J I / I !! \ \ \ \ \ \ \ ° TILE O T\ T 1 i CB
<br />cleanupand restoration plan, obtain right -of -entry from the adjoining property owner and etappropriate \ / / I I I I ( \ \ \ \ \ I Iv=1�pa 51 RI 12.47 \ ��
<br />P 9 rY J 9 P P 9\ \ ' / / I I I I i I \ \\ \\ \ \\ \ 11 "-I---I— 010.26/
<br />approvals from all state, federal, and local agencies as necessary.Then implement the cleanup and restoration --
<br />Ian within 48 hours of obtainingthe adjoining property owner's permission and approval from any appropriate \ / J I I I
<br />P agencies. \ / 4•SP�CE I I I \ 'O
<br />state, federal, and localag j � / I I I I I \\ �'0 \ \ i I I `
<br />WILL
<br />I I
<br />LIGHT/l ' rl / / II I I
<br />/ / POLE
<br />\ �il / ! 8"SPR C I I I
<br />OUND i NVV969.00 , / l l— / // l I l / I I I \ \ \ I I I I �'•IA to I
<br />/ / \ l / t l 1 I I I I I <�� \ s09 I
<br />\� � I /� I I \ \ � \ 1 1 1 1 1 1 1 I I I 1 � � ! I I I I
<br />5 I/ /� / / / / / / / \ \ I I I \ �/ (1013.2)
<br />� Q 18" ASH I ' , , I I , I
<br />/ \ /
<br />a Z�
<br />W0WLL
<br />11 I��WO
<br />I
<br />H6R CHESTAUT \ S��a O �M� / LiC7 / / / > Z W \
<br />// // / / /- // / x 1 1 1 1 \ e / / /0 W_
<br />Z a cn w
<br />g r �- v)
<br />� 1 / / Ur SPRUCE ' 1 1 1 1 \ \ \ q C std °ae P � a�O�Q�� C3��� r � (1 �1 / / / / J O JED
<br />EROSION CONTROL NOTES CONTINUED: I I 1 I 1 , \ \ \ \ K r o P D Rl^V E `" 5�° ate Q �bo 4 / �� As //// / / / 1 Q F Z: Z
<br />Site dewatering. Water pumped from the site shall be treated b temporary sedimentation basins, grit I I I 1 1 \ \ \ \ / / ¢�� ` / / / // LL b CO o �
<br />9 P P Y p° ry ` /
<br />8"SPR6CE \ Qj / / LLI
<br />�/� chambers, sand filters, upflow chambers, hydrocyclones, swirl concentrators or other appropriate I I I 1 1 1 1 \ \ \ \ / I A ��'o' /
<br />/ \ w � Z
<br />/ I / c / / controls as appropriate. All water from dewatering must be discharged in a manner that does not cause / I I \ \ �,�� "\ �� � / / / / // / // / //^ UT } o
<br />�) I /
<br />RIM=975.3E \ / I H nuisance conditions, erosion in receiving channels or on downslope properties, or inundation in I I \ /
<br />/ � I
<br />I / / O / \ ®� I 1 1 \\ \ \\ � /��/ / / w=z
<br />Iwetlands causing significant adverse impact to the wetland. I\\IL-237 / d n\1N\.h1973.19
<br />, , \ \ \ \ \ , , / , I25ZW
<br />All discharge points must be adequately protected from erosion and scour. The discharge must be \ \ \ \ r
<br />18" SPRUCE I / � 9 P q Y P \ \ \ \ PLANTED / 26" / 1 / _ � W 0
<br />II i I Q / // = I �-�\\ B I I dispersed over natural rock riprap, sand bags, plastic sheeting or other accepted energy dissipation \ \ \ p / / / / / o z
<br />\ / measures. Adequate sedimentation control measures are required for discharge water that contains \ \ \ \ \ \ \ \
<br />Stu -1001 ) -+P lI / / / / / / / I I Q w >.
<br />IM_97 / r suspended solids. \ \ \ \ \ \ ` \ /� 11.5 s.z z5z (7p / / 8 \ / / / / / I I I O
<br />' -97 1 r V=9 30 r/ P \ \ \ \ \ 1.0 �3 �� \ / / / / / I I >- Ln w
<br />I / / 22' \\ / \ \ \ A ISTING \ I I ► I l I I P C Q � . N
<br />I � Construction site waste. \ \ \ /
<br />I / /
<br />15)s- O / I \ C / \ \ \ \SOFT\(LAAPLES \ / I I W Q — U) Q ,
<br />8 Z_ LI HT / / �/ Waste and material disposal: All waste, unused building material (including garbage debris, cleaning \ \\ \ \ \ THRESHOLD L=17.0 r- \ 1 / I I 1 I I >_ w ~ Z o `0
<br />� ELEV=1016.1 'n \ I >- Q Z
<br />A Poi / / wastes wastewater, to materials or hazardous materials), collected sediment, asphalt and concrete \ \�` r \ \ \ m \ I I I I W CL = w w
<br />\ i 9 g p fabric construction and demolition debris and other \\\ I I I ,5.6 33.5 W A z \ I I / I / I I a gZ Q
<br />millings, floating debris, paper, plastic, ,
<br />wastes must be properly contained on site and disposed of off site, not allowed to be carried by runoff \ I I I 1 (1013.0) �i 1 °' �� I ( I I I I ( i a Q Z _ o
<br />into receiving channel or storage sewer system. \ 1\ 1\ I PLANTED
<br />\ I I
<br />8"SPRUCE / \\ C I I I I I I I I I
<br />O i I Hazardous materials: Oil, gasoline, paint and any hazardous substances must be properly stored, W Z LLJ \ \ I I / oI I I I I z
<br />spill,\A9 (1014.7) I I I I I I Z
<br />� Q cYLJincludin secondary rycontainment, to prevent leaks or other discharge. Restricted access to storage (1o13.$) 9
<br />I qiH
<br />OI / 8.5 areas must be provided to prevent vandalism. Concrete wash must be limited to a defined area of the site \\� \ I I o.4 I 0.4 I I I I I I ( I I I I w _
<br />I \ I and runoff must be contained within the defined area. Storage of hazardous waste must be in compliance \\\ \ l I PATIO J/ I \ \I I 1 I I I o v
<br />)SPRUCE with MPCA regulations.
<br />/ I / Liquid waste: All non stormwater discharges (concrete truck washout, vehicle washing, maintenance spills, I
<br />/ I etc. conducted during the construction activity must comply with the newest version of the state NPDES permit. \ I --1e44-
<br />I I Sanitary facilities: Adequate on-site sanitary facilities shall be provided in convenient location(s) for all
<br />/ I / persons who work on the site.
<br />Tracking. Each site shall have graveled roads, access drives and parking areas of sufficient width and length � Y
<br />\ / / to prevent sediment from being tracked onto public or private roadways. Any sediment reaching a public or I Z
<br />private road shall be removed by street cleaning before the end of each workday.
<br />_-----900 ----- :
<br />Drain inlet protection. All storm drain inlets shall be protected during construction with control measures as EXISTING CONTOUR
<br />\ approved by the city. These devices shall remain in place until final stabilization of the site. A regular PROPOSED CONTOUR
<br />\ inspection and maintenance plan shall be developed and implemented to assure these devices are operational at 900
<br />\ all times.
<br />\NOTE: PROPOSED EXCAVATION = 700 C.Y.
<br />Site erosion control.
<br />PROPOSED FILLING = 300 C.Y.
<br />\ Channelized runoff from adjacent areas passing through the site shall be diverted around disturbed areas, if
<br />\ practical. Diverted runoff shall be conveyed in a manner that will not erode the conveyance at receiving
<br />channels. All temporary or permanent drainage channels must be stabilized within 24 hours of being connected
<br />to a water of the state. Sediment control is required along channel edges to reduce sediment reaching the channel.
<br />\ \ All activities on the site shall be conducted in a logical sequence to minimize the area of bare soil exposed at
<br />any one time.
<br />0 20 40
<br />O�
<br />U
<br />80 w
<br />SCALE IN FEET
<br />DECEIVED
<br />JUN 22 2011
<br />CITY OF ORONO
<br />W
<br />�
<br />ZZ�'�,
<br />I-
<br />W
<br />W
<br />°-
<br />N
<br />U!
<br />LO
<br />a
<br />■ ■
<br />C6
<br />O
<br />V
<br />LL
<br />W
<br />0
<br />Cl)
<br />>^J
<br />^Wqqt
<br />CO)
<br />!>/
<br />0
<br />Z
<br />J
<br />IX
<br />am
<br />W
<br />QN
<br />WLn
<br />Wz-
<br />J
<br />4m
<br />Z
<br />Z
<br />Z
<br />W
<br />Z
<br />0
<br />O>'ta
<br />V
<br />V
<br />0
<br />24 hours of discovery.\
<br />\ \ / // / / � / ,! / / BASSWOOD'-,/ / / / / 9 / \ BASSWOOD
<br />12" CMP
<br />If the perimeter control device is not functional it must be repaired or replaced within 24 hours of discovery. INv=9s5.24 / \ �� / '� / / / I I I --�_� 46"sPRudE / / / \ \ — / �� ------ _
<br />Temporary sediment basins shall be maintained when sediment reaches'/2 the outlet height or Y2 the basin storage °Y / / L� �� / / / / "ASH/ / I I \ _ _ \
<br />/ / / / \
<br />volume. Basins must be drained or sediment removed within 72 hours of discovery. r / / / / / / / / / / / ( I \ \ ��'"�� �' \ �� —--4 ` \� �!ry W � W N o ``'
<br />V / / / INv 89_ $757 / // // / / I i 1 \ \ \ 1 ��`— ` \ �� J \�----��_ \\ �� �N'p N o r =oma
<br />Sediment must be removed from paved surfaces within 24 hours of discovery. I / \ / / // / / // / / / / 1 \ \ \ ' \18"BASSWOOD
<br />Erosion into streets wetlands or water bodies. If eroded soils (including tracked soils from constructionSPC/E
<br />activities enter or appear likely to enter streets, wetlands, or other water bodies, prevention strategies,
<br />cleanup and repair must be immediate with the appropriate approvals from the DNR, MPCA, or any other state,
<br />federal, or local agencies as necessary. The owner shall provide all traffic control and flagging required to /
<br />99 9 /u T IV I
<br />protect the traveling public during cleanup operations. \ / �E /I I I\ \\ \ \\ \\ \\ \ \ I I � N,, ~`'`� °N�FS /I I
<br />Erosion off-site. If erosion breaches the perimeter of the site, the owner shall immediately develop a �\ / //� / / I J I / I !! \ \ \ \ \ \ \ ° TILE O T\ T 1 i CB
<br />cleanupand restoration plan, obtain right -of -entry from the adjoining property owner and etappropriate \ / / I I I I ( \ \ \ \ \ I Iv=1�pa 51 RI 12.47 \ ��
<br />P 9 rY J 9 P P 9\ \ ' / / I I I I i I \ \\ \\ \ \\ \ 11 "-I---I— 010.26/
<br />approvals from all state, federal, and local agencies as necessary.Then implement the cleanup and restoration --
<br />Ian within 48 hours of obtainingthe adjoining property owner's permission and approval from any appropriate \ / J I I I
<br />P agencies. \ / 4•SP�CE I I I \ 'O
<br />state, federal, and localag j � / I I I I I \\ �'0 \ \ i I I `
<br />WILL
<br />I I
<br />LIGHT/l ' rl / / II I I
<br />/ / POLE
<br />\ �il / ! 8"SPR C I I I
<br />OUND i NVV969.00 , / l l— / // l I l / I I I \ \ \ I I I I �'•IA to I
<br />/ / \ l / t l 1 I I I I I <�� \ s09 I
<br />\� � I /� I I \ \ � \ 1 1 1 1 1 1 1 I I I 1 � � ! I I I I
<br />5 I/ /� / / / / / / / \ \ I I I \ �/ (1013.2)
<br />� Q 18" ASH I ' , , I I , I
<br />/ \ /
<br />a Z�
<br />W0WLL
<br />11 I��WO
<br />I
<br />H6R CHESTAUT \ S��a O �M� / LiC7 / / / > Z W \
<br />// // / / /- // / x 1 1 1 1 \ e / / /0 W_
<br />Z a cn w
<br />g r �- v)
<br />� 1 / / Ur SPRUCE ' 1 1 1 1 \ \ \ q C std °ae P � a�O�Q�� C3��� r � (1 �1 / / / / J O JED
<br />EROSION CONTROL NOTES CONTINUED: I I 1 I 1 , \ \ \ \ K r o P D Rl^V E `" 5�° ate Q �bo 4 / �� As //// / / / 1 Q F Z: Z
<br />Site dewatering. Water pumped from the site shall be treated b temporary sedimentation basins, grit I I I 1 1 \ \ \ \ / / ¢�� ` / / / // LL b CO o �
<br />9 P P Y p° ry ` /
<br />8"SPR6CE \ Qj / / LLI
<br />�/� chambers, sand filters, upflow chambers, hydrocyclones, swirl concentrators or other appropriate I I I 1 1 1 1 \ \ \ \ / I A ��'o' /
<br />/ \ w � Z
<br />/ I / c / / controls as appropriate. All water from dewatering must be discharged in a manner that does not cause / I I \ \ �,�� "\ �� � / / / / // / // / //^ UT } o
<br />�) I /
<br />RIM=975.3E \ / I H nuisance conditions, erosion in receiving channels or on downslope properties, or inundation in I I \ /
<br />/ � I
<br />I / / O / \ ®� I 1 1 \\ \ \\ � /��/ / / w=z
<br />Iwetlands causing significant adverse impact to the wetland. I\\IL-237 / d n\1N\.h1973.19
<br />, , \ \ \ \ \ , , / , I25ZW
<br />All discharge points must be adequately protected from erosion and scour. The discharge must be \ \ \ \ r
<br />18" SPRUCE I / � 9 P q Y P \ \ \ \ PLANTED / 26" / 1 / _ � W 0
<br />II i I Q / // = I �-�\\ B I I dispersed over natural rock riprap, sand bags, plastic sheeting or other accepted energy dissipation \ \ \ p / / / / / o z
<br />\ / measures. Adequate sedimentation control measures are required for discharge water that contains \ \ \ \ \ \ \ \
<br />Stu -1001 ) -+P lI / / / / / / / I I Q w >.
<br />IM_97 / r suspended solids. \ \ \ \ \ \ ` \ /� 11.5 s.z z5z (7p / / 8 \ / / / / / I I I O
<br />' -97 1 r V=9 30 r/ P \ \ \ \ \ 1.0 �3 �� \ / / / / / I I >- Ln w
<br />I / / 22' \\ / \ \ \ A ISTING \ I I ► I l I I P C Q � . N
<br />I � Construction site waste. \ \ \ /
<br />I / /
<br />15)s- O / I \ C / \ \ \ \SOFT\(LAAPLES \ / I I W Q — U) Q ,
<br />8 Z_ LI HT / / �/ Waste and material disposal: All waste, unused building material (including garbage debris, cleaning \ \\ \ \ \ THRESHOLD L=17.0 r- \ 1 / I I 1 I I >_ w ~ Z o `0
<br />� ELEV=1016.1 'n \ I >- Q Z
<br />A Poi / / wastes wastewater, to materials or hazardous materials), collected sediment, asphalt and concrete \ \�` r \ \ \ m \ I I I I W CL = w w
<br />\ i 9 g p fabric construction and demolition debris and other \\\ I I I ,5.6 33.5 W A z \ I I / I / I I a gZ Q
<br />millings, floating debris, paper, plastic, ,
<br />wastes must be properly contained on site and disposed of off site, not allowed to be carried by runoff \ I I I 1 (1013.0) �i 1 °' �� I ( I I I I ( i a Q Z _ o
<br />into receiving channel or storage sewer system. \ 1\ 1\ I PLANTED
<br />\ I I
<br />8"SPRUCE / \\ C I I I I I I I I I
<br />O i I Hazardous materials: Oil, gasoline, paint and any hazardous substances must be properly stored, W Z LLJ \ \ I I / oI I I I I z
<br />spill,\A9 (1014.7) I I I I I I Z
<br />� Q cYLJincludin secondary rycontainment, to prevent leaks or other discharge. Restricted access to storage (1o13.$) 9
<br />I qiH
<br />OI / 8.5 areas must be provided to prevent vandalism. Concrete wash must be limited to a defined area of the site \\� \ I I o.4 I 0.4 I I I I I I ( I I I I w _
<br />I \ I and runoff must be contained within the defined area. Storage of hazardous waste must be in compliance \\\ \ l I PATIO J/ I \ \I I 1 I I I o v
<br />)SPRUCE with MPCA regulations.
<br />/ I / Liquid waste: All non stormwater discharges (concrete truck washout, vehicle washing, maintenance spills, I
<br />/ I etc. conducted during the construction activity must comply with the newest version of the state NPDES permit. \ I --1e44-
<br />I I Sanitary facilities: Adequate on-site sanitary facilities shall be provided in convenient location(s) for all
<br />/ I / persons who work on the site.
<br />Tracking. Each site shall have graveled roads, access drives and parking areas of sufficient width and length � Y
<br />\ / / to prevent sediment from being tracked onto public or private roadways. Any sediment reaching a public or I Z
<br />private road shall be removed by street cleaning before the end of each workday.
<br />_-----900 ----- :
<br />Drain inlet protection. All storm drain inlets shall be protected during construction with control measures as EXISTING CONTOUR
<br />\ approved by the city. These devices shall remain in place until final stabilization of the site. A regular PROPOSED CONTOUR
<br />\ inspection and maintenance plan shall be developed and implemented to assure these devices are operational at 900
<br />\ all times.
<br />\NOTE: PROPOSED EXCAVATION = 700 C.Y.
<br />Site erosion control.
<br />PROPOSED FILLING = 300 C.Y.
<br />\ Channelized runoff from adjacent areas passing through the site shall be diverted around disturbed areas, if
<br />\ practical. Diverted runoff shall be conveyed in a manner that will not erode the conveyance at receiving
<br />channels. All temporary or permanent drainage channels must be stabilized within 24 hours of being connected
<br />to a water of the state. Sediment control is required along channel edges to reduce sediment reaching the channel.
<br />\ \ All activities on the site shall be conducted in a logical sequence to minimize the area of bare soil exposed at
<br />any one time.
<br />0 20 40
<br />O�
<br />U
<br />80 w
<br />SCALE IN FEET
<br />DECEIVED
<br />JUN 22 2011
<br />CITY OF ORONO
<br />
|