HomeMy WebLinkAbout2011 Sediment & Erosion ControlEROSION CONTROL NOTES: SEDIMENT AND EROSION CONTROL FOR
All disturbed ground left inactive for 14 or more days must have temporary or permanent stabilization year round.
For sites with more than ten acres disturbed at one time, or if a channel originates in the disturbed area, one or
more temporary or permanent sedimentation basins shall be constructed. Each sedimentation basin shall have a
surface area of at least one percent of the area draining to the basin and at least three feet of depth and
constructed in accordance with accepted design specifications. Sediment shall be removed to maintain a depth of
GINA PAULUCCI
three feet. The basin discharge rate shall also be sufficiently low as to not cause erosion along the discharge
channel or the receiving water.
Perimeter sediment control measures shall be placed along all down gradient perimeters of the site. If a channel
or area of concentrated runoff passes through the site, perimeter sediment control measures shall be placed
along the channel edges to reduce sediment reaching the channel. All down gradient perimeter sediment control
measures must include a maintenance and inspection schedule.
t !�
Any soil or dirt storage piles containing more than ten cubic yards of material should not be located within 25
feet from a roadway or drainage channel. If remaining for more than 14 days, they shall be stabilized by
mulching vegetative cover, tarps or other means and enclosed with down gradient perimeter sediment controls.
Piles which will be in existence for less than 14 days shall be enclosed with perimeter sediment controls.
Pipe outlets must have energy dissipation installed within 24 hours of connection to waters of the state.
LIGHT
POLE
Inspections and maintenance. The owner shall be responsible for conducting inspections and maintenance of all
erosion and sediment control BMPs on site.
\ \ \ \ I I I I I
Inspections, maintenance, and rainfall on site must be documented and readily available for review. Inspections
1
are required as followed:
Once every seven days on exposed soil areas.
Within 24 hours after a one-half inch or greater rain event over 24 hours.
Once every 30 days on stabilized areas.
As soon as runoff occurs or prior to resuming construction on frozen ground.
Maintenance is required as follows: \\ \k \ /22" HLC DRY / 7 /
When sediment reaches 1/3 the height of the BMP on perimeter control devices, sediment must be removed within \ / /�.HI DRQ
STEEL FENCE POST (T -POSH, MONOFILAMENT GE-OTE)MLE
MINIMUM 5' LONG, FABRIC PER MNDOTTABLE
6' MAXIMUM SPACING. 3886-1.
ATTACH FABRIC TO POST WITH
MINIMUM 3 ZIP TIES (50 LB.
TENSILE) PER POST IN TOP 8"
OF FABRIC.
POST NOTCHES
TO FACE AWAY
FROM FABRIC. LAY FABRIC IN THE TRENCH,
BACKFILL WITH NATURAL
SOIL, AND COMPACT WITH
LIGHT EQUIPMENT PRIOR TO
PLACEMENT OF THE POSTS.
DIRECTION OF
SURFACE FLOW
24" MINIMUM
POST EMBEDMENT
6"
NOTES:
1. SPLICING WILL BE MADE AT OPPOSING SILT FENCE POSTS BY PLACING POSTS
AND SILT FENCE NEXT TO EACH OTHER AND ROTATING 3601.
2. HEAVY DUTY SILT FENCE IS MACHINE SLICED TYPE SILT FENCE THAT IS HAND
INSTALLED IN AREAS INACCESSIBLE TO EQUIPMENT DUE TO SPACE
LIMITATIONS, WET SOILS, STEEP SLOPES, ETC.
A � LIST REYLSION:
//�O`1' \� Apd12008
SILT FENCE
HEAVY DUTY PLare rv°.
tartFsxo�`% EI2D-iC
24 hours of discovery.\
\ \ / // / / � / ,! / / BASSWOOD'-,/ / / / / 9 / \ BASSWOOD
12" CMP
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 / / / \ \ — / �� ------ _
Temporary sediment basins shall be maintained when sediment reaches'/2 the outlet height or Y2 the basin storage °Y / / L� �� / / / / "ASH/ / I I \ _ _ \
/ / / / \
volume. Basins must be drained or sediment removed within 72 hours of discovery. r / / / / / / / / / / / ( I \ \ ��'"�� �' \ �� —--4 ` \� �!ry W � W N o ``'
V / / / INv 89_ $757 / // // / / I i 1 \ \ \ 1 ��`— ` \ �� J \�----��_ \\ �� �N'p N o r =oma
Sediment must be removed from paved surfaces within 24 hours of discovery. I / \ / / // / / // / / / / 1 \ \ \ ' \18"BASSWOOD
Erosion into streets wetlands or water bodies. If eroded soils (including tracked soils from constructionSPC/E
activities enter or appear likely to enter streets, wetlands, or other water bodies, prevention strategies,
cleanup and repair must be immediate with the appropriate approvals from the DNR, MPCA, or any other state,
federal, or local agencies as necessary. The owner shall provide all traffic control and flagging required to /
99 9 /u T IV I
protect the traveling public during cleanup operations. \ / �E /I I I\ \\ \ \\ \\ \\ \ \ I I � N,, ~`'`� °N�FS /I I
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
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 \ ��
P 9 rY J 9 P P 9\ \ ' / / I I I I i I \ \\ \\ \ \\ \ 11 "-I---I— 010.26/
approvals from all state, federal, and local agencies as necessary.Then implement the cleanup and restoration --
Ian within 48 hours of obtainingthe adjoining property owner's permission and approval from any appropriate \ / J I I I
P agencies. \ / 4•SP�CE I I I \ 'O
state, federal, and localag j � / I I I I I \\ �'0 \ \ i I I `
WILL
I I
LIGHT/l ' rl / / II I I
/ / POLE
\ �il / ! 8"SPR C I I I
OUND i NVV969.00 , / l l— / // l I l / I I I \ \ \ I I I I �'•IA to I
/ / \ l / t l 1 I I I I I <�� \ s09 I
\� � I /� I I \ \ � \ 1 1 1 1 1 1 1 I I I 1 � � ! I I I I
5 I/ /� / / / / / / / \ \ I I I \ �/ (1013.2)
� Q 18" ASH I ' , , I I , I
/ \ /
a Z�
W0WLL
11 I��WO
I
H6R CHESTAUT \ S��a O �M� / LiC7 / / / > Z W \
// // / / /- // / x 1 1 1 1 \ e / / /0 W_
Z a cn w
g r �- v)
� 1 / / Ur SPRUCE ' 1 1 1 1 \ \ \ q C std °ae P � a�O�Q�� C3��� r � (1 �1 / / / / J O JED
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
Site dewatering. Water pumped from the site shall be treated b temporary sedimentation basins, grit I I I 1 1 \ \ \ \ / / ¢�� ` / / / // LL b CO o �
9 P P Y p° ry ` /
8"SPR6CE \ Qj / / LLI
�/� chambers, sand filters, upflow chambers, hydrocyclones, swirl concentrators or other appropriate I I I 1 1 1 1 \ \ \ \ / I A ��'o' /
/ \ w � Z
/ I / c / / controls as appropriate. All water from dewatering must be discharged in a manner that does not cause / I I \ \ �,�� "\ �� � / / / / // / // / //^ UT } o
�) I /
RIM=975.3E \ / I H nuisance conditions, erosion in receiving channels or on downslope properties, or inundation in I I \ /
/ � I
I / / O / \ ®� I 1 1 \\ \ \\ � /��/ / / w=z
Iwetlands causing significant adverse impact to the wetland. I\\IL-237 / d n\1N\.h1973.19
, , \ \ \ \ \ , , / , I25ZW
All discharge points must be adequately protected from erosion and scour. The discharge must be \ \ \ \ r
18" SPRUCE I / � 9 P q Y P \ \ \ \ PLANTED / 26" / 1 / _ � W 0
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
\ / measures. Adequate sedimentation control measures are required for discharge water that contains \ \ \ \ \ \ \ \
Stu -1001 ) -+P lI / / / / / / / I I Q w >.
IM_97 / r suspended solids. \ \ \ \ \ \ ` \ /� 11.5 s.z z5z (7p / / 8 \ / / / / / I I I O
' -97 1 r V=9 30 r/ P \ \ \ \ \ 1.0 �3 �� \ / / / / / I I >- Ln w
I / / 22' \\ / \ \ \ A ISTING \ I I ► I l I I P C Q � . N
I � Construction site waste. \ \ \ /
I / /
15)s- O / I \ C / \ \ \ \SOFT\(LAAPLES \ / I I W Q — U) Q ,
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
� ELEV=1016.1 'n \ I >- Q Z
A Poi / / wastes wastewater, to materials or hazardous materials), collected sediment, asphalt and concrete \ \�` r \ \ \ m \ I I I I W CL = w w
\ 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
millings, floating debris, paper, plastic, ,
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
into receiving channel or storage sewer system. \ 1\ 1\ I PLANTED
\ I I
8"SPRUCE / \\ C I I I I I I I I I
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
spill,\A9 (1014.7) I I I I I I Z
� Q cYLJincludin secondary rycontainment, to prevent leaks or other discharge. Restricted access to storage (1o13.$) 9
I qiH
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 _
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
)SPRUCE with MPCA regulations.
/ I / Liquid waste: All non stormwater discharges (concrete truck washout, vehicle washing, maintenance spills, I
/ I etc. conducted during the construction activity must comply with the newest version of the state NPDES permit. \ I --1e44-
I I Sanitary facilities: Adequate on-site sanitary facilities shall be provided in convenient location(s) for all
/ I / persons who work on the site.
Tracking. Each site shall have graveled roads, access drives and parking areas of sufficient width and length � Y
\ / / to prevent sediment from being tracked onto public or private roadways. Any sediment reaching a public or I Z
private road shall be removed by street cleaning before the end of each workday.
_-----900 ----- :
Drain inlet protection. All storm drain inlets shall be protected during construction with control measures as EXISTING CONTOUR
\ approved by the city. These devices shall remain in place until final stabilization of the site. A regular PROPOSED CONTOUR
\ inspection and maintenance plan shall be developed and implemented to assure these devices are operational at 900
\ all times.
\NOTE: PROPOSED EXCAVATION = 700 C.Y.
Site erosion control.
PROPOSED FILLING = 300 C.Y.
\ Channelized runoff from adjacent areas passing through the site shall be diverted around disturbed areas, if
\ practical. Diverted runoff shall be conveyed in a manner that will not erode the conveyance at receiving
channels. All temporary or permanent drainage channels must be stabilized within 24 hours of being connected
to a water of the state. Sediment control is required along channel edges to reduce sediment reaching the channel.
\ \ All activities on the site shall be conducted in a logical sequence to minimize the area of bare soil exposed at
any one time.
0 20 40
O�
U
80 w
SCALE IN FEET
DECEIVED
JUN 22 2011
CITY OF ORONO
W
�
ZZ�'�,
I-
W
W
°-
N
U!
LO
a
■ ■
C6
O
V
LL
W
0
Cl)
>^J
^Wqqt
CO)
!>/
0
Z
J
IX
am
W
QN
WLn
Wz-
J
4m
Z
Z
Z
W
Z
0
O>'ta
V
V
0
24 hours of discovery.\
\ \ / // / / � / ,! / / BASSWOOD'-,/ / / / / 9 / \ BASSWOOD
12" CMP
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 / / / \ \ — / �� ------ _
Temporary sediment basins shall be maintained when sediment reaches'/2 the outlet height or Y2 the basin storage °Y / / L� �� / / / / "ASH/ / I I \ _ _ \
/ / / / \
volume. Basins must be drained or sediment removed within 72 hours of discovery. r / / / / / / / / / / / ( I \ \ ��'"�� �' \ �� —--4 ` \� �!ry W � W N o ``'
V / / / INv 89_ $757 / // // / / I i 1 \ \ \ 1 ��`— ` \ �� J \�----��_ \\ �� �N'p N o r =oma
Sediment must be removed from paved surfaces within 24 hours of discovery. I / \ / / // / / // / / / / 1 \ \ \ ' \18"BASSWOOD
Erosion into streets wetlands or water bodies. If eroded soils (including tracked soils from constructionSPC/E
activities enter or appear likely to enter streets, wetlands, or other water bodies, prevention strategies,
cleanup and repair must be immediate with the appropriate approvals from the DNR, MPCA, or any other state,
federal, or local agencies as necessary. The owner shall provide all traffic control and flagging required to /
99 9 /u T IV I
protect the traveling public during cleanup operations. \ / �E /I I I\ \\ \ \\ \\ \\ \ \ I I � N,, ~`'`� °N�FS /I I
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
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 \ ��
P 9 rY J 9 P P 9\ \ ' / / I I I I i I \ \\ \\ \ \\ \ 11 "-I---I— 010.26/
approvals from all state, federal, and local agencies as necessary.Then implement the cleanup and restoration --
Ian within 48 hours of obtainingthe adjoining property owner's permission and approval from any appropriate \ / J I I I
P agencies. \ / 4•SP�CE I I I \ 'O
state, federal, and localag j � / I I I I I \\ �'0 \ \ i I I `
WILL
I I
LIGHT/l ' rl / / II I I
/ / POLE
\ �il / ! 8"SPR C I I I
OUND i NVV969.00 , / l l— / // l I l / I I I \ \ \ I I I I �'•IA to I
/ / \ l / t l 1 I I I I I <�� \ s09 I
\� � I /� I I \ \ � \ 1 1 1 1 1 1 1 I I I 1 � � ! I I I I
5 I/ /� / / / / / / / \ \ I I I \ �/ (1013.2)
� Q 18" ASH I ' , , I I , I
/ \ /
a Z�
W0WLL
11 I��WO
I
H6R CHESTAUT \ S��a O �M� / LiC7 / / / > Z W \
// // / / /- // / x 1 1 1 1 \ e / / /0 W_
Z a cn w
g r �- v)
� 1 / / Ur SPRUCE ' 1 1 1 1 \ \ \ q C std °ae P � a�O�Q�� C3��� r � (1 �1 / / / / J O JED
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
Site dewatering. Water pumped from the site shall be treated b temporary sedimentation basins, grit I I I 1 1 \ \ \ \ / / ¢�� ` / / / // LL b CO o �
9 P P Y p° ry ` /
8"SPR6CE \ Qj / / LLI
�/� chambers, sand filters, upflow chambers, hydrocyclones, swirl concentrators or other appropriate I I I 1 1 1 1 \ \ \ \ / I A ��'o' /
/ \ w � Z
/ I / c / / controls as appropriate. All water from dewatering must be discharged in a manner that does not cause / I I \ \ �,�� "\ �� � / / / / // / // / //^ UT } o
�) I /
RIM=975.3E \ / I H nuisance conditions, erosion in receiving channels or on downslope properties, or inundation in I I \ /
/ � I
I / / O / \ ®� I 1 1 \\ \ \\ � /��/ / / w=z
Iwetlands causing significant adverse impact to the wetland. I\\IL-237 / d n\1N\.h1973.19
, , \ \ \ \ \ , , / , I25ZW
All discharge points must be adequately protected from erosion and scour. The discharge must be \ \ \ \ r
18" SPRUCE I / � 9 P q Y P \ \ \ \ PLANTED / 26" / 1 / _ � W 0
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
\ / measures. Adequate sedimentation control measures are required for discharge water that contains \ \ \ \ \ \ \ \
Stu -1001 ) -+P lI / / / / / / / I I Q w >.
IM_97 / r suspended solids. \ \ \ \ \ \ ` \ /� 11.5 s.z z5z (7p / / 8 \ / / / / / I I I O
' -97 1 r V=9 30 r/ P \ \ \ \ \ 1.0 �3 �� \ / / / / / I I >- Ln w
I / / 22' \\ / \ \ \ A ISTING \ I I ► I l I I P C Q � . N
I � Construction site waste. \ \ \ /
I / /
15)s- O / I \ C / \ \ \ \SOFT\(LAAPLES \ / I I W Q — U) Q ,
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
� ELEV=1016.1 'n \ I >- Q Z
A Poi / / wastes wastewater, to materials or hazardous materials), collected sediment, asphalt and concrete \ \�` r \ \ \ m \ I I I I W CL = w w
\ 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
millings, floating debris, paper, plastic, ,
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
into receiving channel or storage sewer system. \ 1\ 1\ I PLANTED
\ I I
8"SPRUCE / \\ C I I I I I I I I I
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
spill,\A9 (1014.7) I I I I I I Z
� Q cYLJincludin secondary rycontainment, to prevent leaks or other discharge. Restricted access to storage (1o13.$) 9
I qiH
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 _
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
)SPRUCE with MPCA regulations.
/ I / Liquid waste: All non stormwater discharges (concrete truck washout, vehicle washing, maintenance spills, I
/ I etc. conducted during the construction activity must comply with the newest version of the state NPDES permit. \ I --1e44-
I I Sanitary facilities: Adequate on-site sanitary facilities shall be provided in convenient location(s) for all
/ I / persons who work on the site.
Tracking. Each site shall have graveled roads, access drives and parking areas of sufficient width and length � Y
\ / / to prevent sediment from being tracked onto public or private roadways. Any sediment reaching a public or I Z
private road shall be removed by street cleaning before the end of each workday.
_-----900 ----- :
Drain inlet protection. All storm drain inlets shall be protected during construction with control measures as EXISTING CONTOUR
\ approved by the city. These devices shall remain in place until final stabilization of the site. A regular PROPOSED CONTOUR
\ inspection and maintenance plan shall be developed and implemented to assure these devices are operational at 900
\ all times.
\NOTE: PROPOSED EXCAVATION = 700 C.Y.
Site erosion control.
PROPOSED FILLING = 300 C.Y.
\ Channelized runoff from adjacent areas passing through the site shall be diverted around disturbed areas, if
\ practical. Diverted runoff shall be conveyed in a manner that will not erode the conveyance at receiving
channels. All temporary or permanent drainage channels must be stabilized within 24 hours of being connected
to a water of the state. Sediment control is required along channel edges to reduce sediment reaching the channel.
\ \ All activities on the site shall be conducted in a logical sequence to minimize the area of bare soil exposed at
any one time.
0 20 40
O�
U
80 w
SCALE IN FEET
DECEIVED
JUN 22 2011
CITY OF ORONO