HomeMy WebLinkAboutWPO201800050 Review Comments WPO VSMP 2018-08-06WP0201800050 Plan - VSMP 2018-06-26.pdf Markup Summary
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1 (3)
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1 Include all WPO's associated with Brookhill.
1
-Rename the plan as discussed with the County Engineer.
-Provide overall sheet showing approved WPO plan numbers and their associated disturbed area.
-Will need SWM maintenance agreement before plan can be approved. Conact Ana Kilmer to start this process.
-Ensure the SWM Report booklet is signed and sealed.
-Show steep slopes on all applicable sheets.
-Show maintenance requirements from Section 9 of DEQ specifications for all SWM facilities.
1
This should be field verified within the last year.
This is not existing. It is proposed with the greenway/buffer or open space.
Where is pond 4? Is this clean water? If not, it must go to sediment basin or trap, not pond.
Where does this go?
7 (1)
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8 (7)
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Matchline?
Is this an existing pipe?
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Reference the approved WPO Plan # where this pond design is located. Show pond design is adequate for this drainage area/change in land cover.
Is this clean water? Or does it need to go to sediment basin or trap?
These pipes are in Phase 1? Where are pipe calculations?
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Is this an existing, approved sediment basin? If so, reference the approved WPO # and show that the design is still adequate with the proposed
drainage area.
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What is this hatch?
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9 (1)
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Provide wash rack.
11 (1)
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Provide Albemarle County paved CE detail from Design Standards Manual.
13 (1)
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This is proposed grading?
14 (3)
Label pond 4 location.
This will need to be in an easement per section 5.1 of DEQ spec. #2.
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As discussed in our meeting, please isolate the area involved only with the ice park improvements (the ice park and the entrance road). Show how
water quantity requirements are being met for that site only. Do not include a regional plan. Analyze each point of concentrated outfall from your
site.
15 (1)
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Please label the SWM facility ID to make it easy to follow along with Sheet C-903.
16 (1)
Show the plan # where the design of the facility is located.
Provide water quality narrative. This plan provides a final design for pond 4, which is treating more than just the ice park. So, you will have an
excess of nutrient credits (for plans that have not been submitted yet). Please clarify credits needed for just the ice park improvements and credits
that are extra. Future plans may reference this WPO to show compliance with the pond 4 design.
What year storms are these analyzed for?
This can't be regional. This must be from each concentrated outfall from your site.
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17 (3)
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18 (10)
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There is no Sheet C907.
See comment, this sheet. Please clarify what is proposed and what is existing.
Reference the sheet these sections are located (C-904).
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'NI,
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Existing or proposed level spreader? Where is the design for this located?
There is no Sheet C907.
The pond and the level spreader will need a SWM facility easement and deed.
Show SWM facility easement around entire facility.
Show pipe calculations for all pipes.
- £
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Please clarify. The pond as shown here is not existing. This plan appears to be modifying the grading approved with WPO201700037. Therefore it
is not existing. Please clearly show what is different/proposed with this WPO plan and design.
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What is this line?
19 (1)
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-As discussed in meeting, ensure level spreader and outfall meet all design requirements to be used as a VRRM facility.
-Provide easement around all SWM facilities.
-As on previous sheet, clarify what is existing and what is proposed or revised.