HomeMy WebLinkAboutWPO201400032 Review Comments Stormwater Management Plan 2014-06-11�pF A
vt�r�1Q
COUNTY OF ALBEMARLE
Department of Community Development
401 McIntire Road, Room 227
Charlottesville, Virginia 22902 -4596
Phone (434) 296 -5832 Fax (434) 972 -4126
Project:
Plan preparer:
Owner or rep.
Plan received date:
Rev. 1
Rev. 2
Date of comments:
Rev. 1
Rev. 2
Reviewer:
Montessori Pantops Mountain Community School
Chris Mantle, Chris Sonne; McKee Carson [301 East High Street,
Charlottesville, VA 22902, cmantle(cmckeecarson.com;
csonne(c)mckeecarson. com]
Montessori Community School of Charlottesville [440 Pinnacle Place,
Charlottesville VA 22911 wfisher (a)mountaintopmontessori.org]
16 April 2014
21 May 2014
3 June, 2014
05 May 2014
28 May 2014
11 June 2014 - Approved
John Anderson
A. Stormwater Management and Mitigation Plan (WP0201400032) - Approved
1. Separate out the WPO plans. They cannot be approved as part of a site plan set. (Rev. 1) Comment has
been addressed.
2. These plans should include BMP /s for phase 1 that reflect ultimate build -out. With change to Master Plan
and prior applications that eliminate certain features (bio- filters, cistern, swale), it is important that SWM
design reflect overall development plans. May 1, we met to discuss need to retain semblance of biological
treatment since bio- filters were incorporated (as exhibit drawings) in the 2009 special permit. Since bio -
filters and a cistern were elements of prior design, please ensure that water quality requirements are met
using proposed rain gardens, or another approach. Please furnish details that demonstrate that phase 1
SWM meets quality and quantity requirements. Compare pre- and post - development impervious areas;
show that selected SWM BMP /s meet required (pollutant) removal rates.
(Rev 1.) Comment has been addressed, yet design details require clarification. Total rain garden design
volume appears sufficient to meet detention requirements, but significant post - developed storm runoff does
not reach any rain garden. Hydrocad modeling shows that post - developed 2- and 10 -year peak runoff
values are less than pre - developed, but the Short Version BMP Computations spreadsheet, which calculates
volume for water quality purposes, assumes runoff from developed areas reaches SWM facilities. Only 3
of 9 defined drainage areas reach rain gardens. Sub -area 3 routes to Rain Garden RG -5; Sub -area 4 routes
to Rain Garden RG -4; Sub -area 7 routes to Rain Gardens RG -1, RG -2 & RG -3. Please present calculations
that show minimum removal efficiency of 33% is met with current Rain Garden and permeable paver
subgrade storage design. Specifically, statement that "the project BMPs remove a total of 72.7 cubic yards
of stormwater (at 100% efficiency), resulting in a total pollutant removal of 4.9 times the minimum required
amount" may be misleading. For example, a 100% efficiency rate applied to half an affected area equates
to 50% efficiency for the entire area. Please evaluate runoff from areas reaching rain gardens against runoff
from impervious areas of the 1.26 Acre site. Restate removal efficiency as it relates to post - developed
Engineering Review Comments
Page 2 of 3
impervious areas. Re- stated efficiency should include areas routed to rain gardens and impervious areas
that simply discharge to existing inlets. Further, please note that statement of 100% efficiency presumes no
overflow from any rain garden, yet unless Hydrocad Software predicts 100% detention during design year
storms for DAs that route to the gardens (DA -3, 4, 7), then removal efficiency is <100 %. Please consider
runoff areas that do not reach the rain gardens, and overflow, and re -state efficiency with respect to site
impervious areas. Sheet 16: plan - profile views require a scale to aid review and construction. Label
bottom of wall elevation for each wall shown in rain garden/sub -grade storage profile view. Show
dimensions for RG -1, 2, 3, 4, and sub -grade SW storage (beneath permeable pavers; plan view). Furnish
RG -5 details /dimensions, including connection with inlet B3. Please compare dimensions against table
SWM treatment volumes (as a check). Confirm ponded volumes (cf) for RG -1, 2, 3 (as a check).
(Rev. 2) Comment addressed. Also, see 6/11 e-mail, Chris Mantle — construct sediment trap (floor
dimensions) plan sheet 3 scale: 1" = 20'.
3. Water Quantity: Please demonstrate compliance with AC Code 17 -314, Control of Peak Rate and Velocity
of Runoff. (Rev. 1) Comment has been partially addressed. Please furnish 2- and 10 -yr design storm gpeak
for rain gardens. Confirm that pre- and post - development 2- and 10 -yr design storm release rates shown on
sheet 15 graphic reflect gpeak for the entire 1.26 Ac. site; that is, that the graph includes storm runoff that
does not reach rain gardens but drains instead directly to the existing inlet near the intersection with Rolkin
Drive. (Rev. 2) Comment addressed.
4. Furnish profiles for new sanitary sewer and storm drain lines. Furnish pipe and inlet computations for
existing lines or inlets that receive additional flow, including capacity and spread calculations for inlets on
Rolkin Road that receive increased runoff with change from gravel to asphalt parking surface. Consider IN-
A2 to MH -B 1, and discharge through this line. Ensure that discarded design profiles (IN -1 to IN -2 to MH-
3, for example) and labels (MH -3, OF -3, for example) are removed from sheet 7. Show plan/profile and
furnish computational details for the parking lot rain garden island if this is a SWM structure. How will
runoff reach the parking lot rain garden? Ensure that labels and notes on sheet 16 are readable scale (font
pitch). (Rev. 1) Comment has been partially addressed. Response states that "stormwater pipe flow
calculations and capacities have been added to the plans ... [and that] the resulting increase in spread at the
inlet is shown on the attached chart." These items are missing; please provide. (Rev. 2) Comment
addressed.
5. 2014, Stormwater Narrative - Additional Stormwater Measures (sheet 15) relate to temporary ESC, not
permanent SWM measures — revise /furnish Stormwater Narrative - Stormwater Measures for Phase 1.
This is critical. (Rev. 1) Comment has been partially addressed. Revise statements concerning pollutant
removal efficiency. Ref. item 2., above. (Rev. 2) Comment addressed.
6. Restore Nvoplast Dome Grate detail —ref sheet 13, 3/31/14 plans. (Rev. 2) Comment addressed.
7. Sheet 3, Note 8, please eliminate reference to "sediment which accumulates in the existing pond," a possible
carryover from earlier design. (Rev. 2) Comment addressed.
B. Erosion Control Plan (WPO201400032) - Approved
1. Separate out the WPO plans. They cannot be approved as part of a site plan set. (Rev. 1) Comment has
been addressed.
2. Provide clear limits of disturbance, including areas near amphitheater and geodesic dome if these areas will
be graded. (Rev. 1) Comment has been addressed.
Engineering Review Comments
Page 3 of 3
3. Provide perimeter controls that include utility demolition and installation of new sanitary sewer line. The
sediment trap is upslope of utility work and appears to release to a steep slope. There is potential for
sediment trap discharge to wash across the sidewalk and onto Rolkin Road. Consider measures that limit
this potential. Please clearly delineate sidewalks at Rolkin and Richmond Roads. (Rev. 1) Comment has
been addressed.
4. Furnish safety fence to prevent incidental trespass. None is shown. All controls must be shown and
detailed on the plan, and within the limits of disturbance. (Rev 1) Comment partially addressed. Please
show SAF immediately adjacent to sidewalks on Rolkin Drive and Richmond Road (Rte. 250). This SAF
should remain up at all times except as needed to allow construction access. (Rev. 2) Comment
addressed.
5. Indicate access (vehicle travel path) to stockpile area, sheet 3. Stockpile area needs a construction entrance.
Also, there is an apparent conflict between the construction entrance and storm drain line from IN-A2 to
MH -B1 (sheet 5). (Rev. 1) Comment has been a(I ' -ssed. Minor relocate CE label to correspond with
new CE location, sheet 03. (Rev. 2) Comment addressed.
6. Furnish sediment trap details and dimensions (profile, perspective, cross section of outlet) sufficient to
evaluate against VESCH; see Plate 3.13 -2 (VESCH) — ST floor length and width, especially. Rev. 1
Comment not addressed. Please furnish. (Rev. 2) Comment addressed. Also, see 6/11 e -mail, Chris
Mantle — construct sediment trap (floor dimensions) using plan sheet 3 scale: 1" = 20'.
C. Road plans
D. Site Plan (SDP201400032)
Parking: Increase parking lot rain garden island radius from 1.8 -ft to 3 -ft, minimum. Lengthen curb (bulb -out) at
parking lot entrance so that parking space at entrance is bordered by 18 -11 length of curb, minimum. Rev. 1
Comment has been addressed.
E. Final Plat
NA
File: WPO201400032- Montessori - 061114 -REV2
�pF A
vt�r�1Q
COUNTY OF ALBEMARLE
Department of Community Development
401 McIntire Road, Room 227
Charlottesville, Virginia 22902 -4596
Phone (434) 296 -5832 Fax (434) 972 -4126
Project: Montessori Pantops Mountain Community School
Plan preparer: Chris Mantle, Chris Sonne; McKee Carson [301 East High Street,
Charlottesville, VA 22902, cmantle(cmckeecarson.com;
csonne(c)mckeecarson. com]
Owner or rep.: Montessori Community School of Charlottesville [440 Pinnacle Place,
Charlottesville VA 22911 wfisher (a)mountaintopmontessori.org]
Plan received date: 16 April 2014
Rev. 1 21 Maw
Date of comments: 05 May 2014
Rev. 1 28 Maw
Reviewer: John Anderson
A. Stormwater Management and Mitigation Plan (WP0201400032)
1. Separate out the WPO plans. They cannot be approved as part of a site plan set. (Rev. 1) Comment has
been addressed.
2. These plans should include BMP /s for phase 1 that reflect ultimate build -out. With change to Master Plan
and prior applications that eliminate certain features (bio- filters, cistern, swale), it is important that SWM
design reflect overall development plans. May 1, we met to discuss need to retain semblance of biological
treatment since bio - filters were incorporated (as exhibit drawings) in the 2009 special permit. Since bio -
filters and a cistern were elements of prior design, please ensure that water quality requirements are met
using proposed rain gardens, or another approach. Please furnish details that demonstrate that phase 1
SWM meets quality and quantity requirements. Compare pre- and post - development impervious areas;
show that selected SWM BMP /s meet required (pollutant) removal rates.
(Rev 1.) Comment has been addressed, yet design details require clarification. Total rain garden design
volume appears sufficient to meet detention requirements, but significant post - developed storm runoff does
not reach any rain garden. Hydrocad modeling shows that post - developed 2- and 10 -year peak runoff
values are less than pre - developed, but the Short Version BMP Computations spreadsheet, which calculates
volume for water quality purposes, assumes runoff from developed areas reaches SWM facilities. Only 3
of 9 defined drainage areas reach rain gardens. Sub -area 3 routes to Rain Garden RG -5; Sub -area 4 routes
to Rain Garden RG -4; Sub -area 7 routes to Rain Gardens RG -1, RG -2 & RG -3. Please present calculations
that show minimum removal efficiency of 33% is met with current Rain Garden and permeable paver
subgrade storage design. Specifically, statement that "the project BMPs remove a total of 72.7 cubic yards
of stormwater (at 100% efficiency), resulting in a total pollutant removal of 4.9 times the minimum required
amount" may be misleading. For example, a 100% efficiency rate applied to half an affected area equates
to 50% efficiency for the entire area. Please evaluate runoff from areas reaching rain gardens against runoff
from impervious areas of the 1.26 Acre site. Restate removal efficiency as it relates to post - developed
impervious areas. Re- stated efficiency should include areas routed to rain gardens and impervious areas
that simply discharge to existing inlets. Further, please note that statement of 100% efficiency presumes no
overflow from any rain garden, yet unless Hydrocad Software predicts 100% detention during design year
Engineering Review Comments
Page 2 of 3
storms for DAs that route to the gardens (DA -3, 4, 7), then removal efficiency is <100 %. Please consider
runoff areas that do not reach the rain gardens, and overflow, and re -state efficiency with respect to site
impervious areas. Sheet 16: plan - profile views require a scale to aid review and construction. Label
bottom of wall elevation for each wall shown in rain garden/sub -grade storage profile view. Show
dimensions for RG -1, 2, 3, 4, and sub -grade SW storage (beneath permeable pavers; plan view). Furnish
RG -5 details /dimensions, including connection with inlet B3. Please compare dimensions against table
SWM treatment volumes (as a check). Confirm ponded volumes (cf) for RG -1, 2, 3 (as a check).
3. Water Quantity: Please demonstrate compliance with AC Code 17 -314, Control of Peak Rate and Velocity
of Runoff. (Rev. 1) Comment has been partially addressed. Please furnish 2- and 10 -yr design storm gpeak
for rain gardens. Confirm that pre- and post - development 2- and 10 -yr design storm release rates shown on
sheet 15 graphic reflect gpeak for the entire 1.26 Ac. site; that is, that the graph includes storm runoff that
does not reach rain gardens but drains instead directly to the existing inlet near the intersection with Rolkin
Drive.
4. Furnish profiles for new sanitary sewer and storm drain lines. Furnish pipe and inlet computations for
existing lines or inlets that receive additional flow, including capacity and spread calculations for inlets on
Rolkin Road that receive increased runoff with change from gravel to asphalt parking surface. Consider IN-
A2 to MH -B1, and discharge through this line. Ensure that discarded design profiles (IN -1 to IN-2 to MH-
3, for example) and labels (MH -3, OF -3, for example) are removed from sheet 7. Show plan/profile and
furnish computational details for the parking lot rain garden island if this is a SWM structure. How will
runoff reach the parking lot rain garden? Ensure that labels and notes on sheet 16 are readable scale (font
pitch). (Rev. 1) Comment has been partially addressed. Response states that "stormwater pipe flow
calculations and capacities have been added to the plans ... [and that] the resulting increase in spread at the
inlet is shown on the attached chart." These items are missing; please provide.
5. 2014, Stormwater Narrative Additional Stormwater Measures (sheet 15) relate to temporary ESC, not
permanent SWM measures — reviseyurnish Stormwater Narrative - Stormwater Measures for Phase 1.
This is critical. (Rev. 1) Comment has been partially addressed. Revise statements concerning pollutant
removal efficiency. Ref. item 2., above.
6. Restore Nvoplast Dome Grate detail —ref sheet 13, 3/31/14 plans.
7. Sheet 3, Note 8, please eliminate reference to "sediment which accumulates in the existing pond," a possible
carryover from earlier design.
B. Erosion Control Plan (WPO201400032)
1. Separate out the WPO plans. They cannot be approved as part of a site plan set. (Rev. 1) Comment has
been addressed.
2. Provide clear limits of disturbance, including areas near amphitheater and geodesic dome if these areas will
be graded. (Rev. 1) Comment has been addressed.
3. Provide perimeter controls that include utility demolition and installation of new sanitary sewer line. The
sediment trap is upslope of utility work and appears to release to a steep slope. There is potential for
sediment trap discharge to wash across the sidewalk and onto Rolkin Road. Consider measures that limit
this potential. Please clearly delineate sidewalks at Rolkin and Richmond Roads. (Rev. 1) Comment has
been addressed.
Furnish safety fence to prevent incidental trespass. None is shown. All controls must be shown and
detailed on the plan, and within the limits of disturbance. (Rev 1) Comment partially addressed. Please
Engineering Review Comments
Page 3 of 3
show SAF immediately adjacent to sidewalks on Rolkin Drive and Richmond Road (Rte. 250). This SAF
should remain up at all times except as needed to allow construction access.
5. Indicate access (vehicle travel path) to stockpile area, sheet 3. Stockpile area needs a construction entrance.
Also, there is an apparent conflict between the construction entrance and storm drain line from IN-A2 to
MH -B1 (sheet 5). (Rev. 1) Comment has been addressed. Minor — relocate CE label to correspond with
new CE location, sheet 03.
6. Furnish sediment trap details and dimensions (profile, perspective, cross section of outlet) sufficient to
evaluate against VESCH; see Plate 3.13 -2 (VESCH) — ST floor length and width, especially. Rev. 1
Comment not addressed. Please furnish.
C. Road plans
NA
D. Site Plan (SDP201400032)
Parking: Increase parking lot rain garden island radius from 1.8 -ft to 3 -ft, minimum. Lengthen curb (bulb -out) at
parking lot entrance so that parking space at entrance is bordered by 18 -ft length of curb, minimum. Rev. 1
Comment has been addressed.
E. Final Plat
NA
File: WP0201400032- Montessori - 052814 -REV 1
� OF AL
,. vIRGI1`IZP
COUNTY OF ALBEMARLE
Department of Community Development
401 McIntire Road, Room 227
Charlottesville, Virginia 22902 -4596
Phone (434) 296 -5832 Fax (434) 972 -4126
Project: Montessori Pantops Mountain Community School
Plan preparer: Chris Mantle, Chris Sonne; McKee Carson [301 East High Street,
Charlottesville, VA 22902, cmantle @mckeecarson.com;
csonne @ mckeecarson.com]
Owner or rep.: Montessori Community School of Charlottesville [440 Pinnacle Place,
Charlottesville VA 22911 wfisher @mountaintopmontessori.orc]
Plan received date: 16 April 2014
Date of comments: 05 May 2014
Reviewer: John Anderson
A. Stormwater Management and Mitigation Plan (WP0201400032)
1. Separate out the WPO plans. They cannot be approved as part of a site plan set.
2. These plans should include BMP /s for phase 1 that reflect ultimate build -out. With change to
Master Plan and prior applications that eliminate certain features (bio- filters, cistern, swale), it is
important that SWM design reflect overall development plans. May 1, we met to discuss need to
retain semblance of biological treatment since bio- filters were incorporated (as exhibit drawings)
in the 2009 special permit. Since bio- filters and a cistern were elements of prior design, please
ensure that water quality requirements are met using proposed rain gardens, or another approach.
Please furnish details that demonstrate that phase 1 SWM meets quality and quantity requirements.
Compare pre- and post - development impervious areas; show that selected SWM BMP /s meet
required (pollutant) removal rates.
3. Water Quantity: Please demonstrate compliance with AC Code 17 -314, Control of Peak Rate and
Velocity of Runoff.
4. Furnish profiles for new sanitary sewer and storm drain lines. Furnish pipe and inlet computations
for existing lines or inlets that receive additional flow, including capacity and spread calculations
for inlets on Rolkin Road that receive increased runoff with change from gravel to asphalt parking
surface. Consider IN -A2 to MH -B 1, and discharge through this line. Ensure that discarded design
profiles (IN -1 to IN -2 to MH -3, for example) and labels (MH -3, OF -3, for example) are removed
from sheet 7. Show plan /profile and furnish computational details for the parking lot rain garden
island if this is a SWM structure. How will runoff reach the parking lot rain garden? Ensure that
labels and notes on sheet 16 are readable scale (font pitch).
5. 2014, Stormwater Narrative - Additional Stormwater Measures (sheet 15) relate to temporary
ESC, not permanent SWM measures — revise /furnish Stormwater Narrative - Stormwater
Measures for Phase 1. This is critical.
Engineering Review Comments
Page 2 of 2
B. Erosion Control Plan (WPO201400032)
1. Separate out the WPO plans. They cannot be approved as part of a site plan set.
2. Provide clear limits of disturbance, including areas near amphitheater and geodesic dome if these
areas will be graded.
3. Provide perimeter controls that include utility demolition and installation of new sanitary sewer
line. The sediment trap is upslope of utility work and appears to release to a steep slope. There is
potential for sediment trap discharge to wash across the sidewalk and onto Rolkin Road. Consider
measures that limit this potential. Please clearly delineate sidewalks at Rolkin and Richmond
Roads.
4. Furnish safety fence to prevent incidental trespass. None is shown. All controls must be shown
and detailed on the plan, and within the limits of disturbance.
5. Indicate access (vehicle travel path) to stockpile area, sheet 3. Stockpile area needs a construction
entrance. Also, there is an apparent conflict between the construction entrance and storm drain
line from IN -A2 to MH -B 1 (sheet 5).
6. Furnish sediment trap details and dimensions (profile, perspective, cross section of outlet)
sufficient to evaluate against VESCH; see Plate 3.13 -2 (VESCH) — ST floor length and width,
especially.
C. Road plans
I`/_1
D. Site Plan (SDP201400032)
Parking: Increase parking lot rain garden island radius from 1.8 -ft to 3 -ft, minimum. Lengthen curb (bulb -
out) at parking lot entrance so that parking space at entrance is bordered by 18 -ft length of curb, minimum.
E. Final Plat
NA
File: WPO201400032- Montessori - Memo - 050514
� OF AL
,. vIRGI1`IZP
COUNTY OF ALBEMARLE
Department of Community Development
401 McIntire Road, Room 227
Charlottesville, Virginia 22902 -4596
Phone (434) 296 -5832 Fax (434) 972 -4126
Project: Montessori Pantops Mountain Community School
Plan preparer: Chris Mantle, Chris Sonne; McKee Carson [301 East High Street,
Charlottesville, VA 22902, cmantle @mckeecarson.com;
csonne @ mckeecarson.com]
Owner or rep.: Montessori Community School of Charlottesville [440 Pinnacle Place,
Charlottesville VA 22911 wfisher @mountaintopmontessori.orc]
Plan received date: 16 April 2014
Date of comments: 05 May 2014
Reviewer: John Anderson
A. Stormwater Management and Mitigation Plan (WP0201400032)
1. Separate out the WPO plans. They cannot be approved as part of a site plan set.
2. These plans should include BMP /s for phase 1 that reflect ultimate build -out. With change to
Master Plan and prior applications that eliminate certain features (bio- filters, cistern, swale), it is
important that SWM design reflect overall development plans. May 1, we met to discuss need to
retain semblance of biological treatment since bio- filters were incorporated (as exhibit drawings)
in the 2009 special permit. Since bio- filters and a cistern were elements of prior design, please
ensure that water quality requirements are met using proposed rain gardens, or another approach.
Please furnish details that demonstrate that phase 1 SWM meets quality and quantity requirements.
Compare pre- and post - development impervious areas; show that selected SWM BMP /s meet
required (pollutant) removal rates.
3. Water Quantity: Please demonstrate compliance with AC Code 17 -314, Control of Peak Rate and
Velocity of Runoff.
4. Furnish profiles for new sanitary sewer and storm drain lines. Furnish pipe and inlet computations
for existing lines or inlets that receive additional flow, including capacity and spread calculations
for inlets on Rolkin Road that receive increased runoff with change from gravel to asphalt parking
surface. Consider IN -A2 to MH -B 1, and discharge through this line. Ensure that discarded design
profiles (IN -1 to IN -2 to MH -3, for example) and labels (MH -3, OF -3, for example) are removed
from sheet 7. Show plan /profile and furnish computational details for the parking lot rain garden
island if this is a SWM structure. How will runoff reach the parking lot rain garden? Ensure that
labels and notes on sheet 16 are readable scale (font pitch).
5. 2014, Stormwater Narrative - Additional Stormwater Measures (sheet 15) relate to temporary
ESC, not permanent SWM measures — revise /furnish Stormwater Narrative - Stormwater
Measures for Phase 1. This is critical.
Engineering Review Comments
Page 2 of 2
B. Erosion Control Plan (WPO201400032)
1. Separate out the WPO plans. They cannot be approved as part of a site plan set.
2. Provide clear limits of disturbance, including areas near amphitheater and geodesic dome if these
areas will be graded.
3. Provide perimeter controls that include utility demolition and installation of new sanitary sewer
line. The sediment trap is upslope of utility work and appears to release to a steep slope. There is
potential for sediment trap discharge to wash across the sidewalk and onto Rolkin Road. Consider
measures that limit this potential. Please clearly delineate sidewalks at Rolkin and Richmond
Roads.
4. Furnish safety fence to prevent incidental trespass. None is shown. All controls must be shown
and detailed on the plan, and within the limits of disturbance.
5. Indicate access (vehicle travel path) to stockpile area, sheet 3. Stockpile area needs a construction
entrance. Also, there is an apparent conflict between the construction entrance and storm drain
line from IN -A2 to MH -B 1 (sheet 5).
6. Furnish sediment trap details and dimensions (profile, perspective, cross section of outlet)
sufficient to evaluate against VESCH; see Plate 3.13 -2 (VESCH) — ST floor length and width,
especially.
C. Road plans
I`/_1
D. Site Plan (SDP201400032)
Parking: Increase parking lot rain garden island radius from 1.8 -ft to 3 -ft, minimum. Lengthen curb (bulb -
out) at parking lot entrance so that parking space at entrance is bordered by 18 -ft length of curb, minimum.
E. Final Plat
NA
File: WPO201400032- Montessori - Memo - 050514
Project Name: Montessori Pantops Mountain Community School
WPO file number: WPO201400032
Stormwater Manaqement Plan Bond Estimate
Item
Item
No. Unit Unit Cost
Cost
Number
installed
1
Garden Walls (email, Robert Menasco [Martin Horn] /Kendra Guiffre; Thu, Sep 4, 2014 at 2:47 PM)
51,345.00
2
Rain Garden, parking lot island (email, ref above)
5,900.00
3
biofilter soil mix (CY)
48 cy $38.00
$1,825.90
4
Gravel strip (email)
400.00
5
Plantings (email)
5,000.00
6
Rain garden pavers (email -2, Robert Menasco /Chris Mantle; September 11, 2014 11:32 AM)
5,885.00
7
Piping, rain garden (email -2, above) - assumes installation; appears conservative
9,000.00
cost sum
$79,355.90
proj mgmt
$11,903.39
contingency
$9,125.93
9/24/14,
JEA
Total
$100,390
9/24/2014