HomeMy WebLinkAboutBLOOM FILING FOUR - FDP240001 - SUBMITTAL DOCUMENTS - ROUND 1 - DRAINAGE REPORT
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Final Drainage and Erosion Control Report
Bloom Multi Family
Fort Collins, CO
Prepared for:
Hartford Acquisitions, LLC
4801 Goodman Road
Timnath, CO 80547
January 23, 2024
Final Drainage and Erosion Control Report
Bloom Multi Family Development
Fort Collins, CO
i C22026 - Bloom Multi Family Drainage Report FDP 1st Round.docx
January 22, 2024
Mr. Wes Lamarque
City of Fort Collins Engineer
4750 Signal Tree Drive
Timnath, CO 80547
RE: Bloom Multi Family Final Design and Erosion Control Report
Project Number: C22026
Dear Wes,
CivilWorx, LLC is pleased to submit this Final Design and Erosion Control Report for the Bloom Multi Family
Development in Fort Collins, Colorado. This report serves to document the Final design plans for the
Bloom Development. The proposed plan is not substantially different from the plan presented with the
preliminary plan review.
We understand that review by the City of Fort Collins is to assure general compliance with standardized
criteria contained in City of Fort Collins Storm Drainage Design Criteria and Construction Standards. This
report was prepared in compliance with technical criteria set forth in both the Urban Drainage and Flood
Control District (UDFCD) Urban Storm Drainage Criteria Manual and the City of Fort Collins Storm Drainage
Design Criteria.
If you should have any questions or comments as you review this report, please feel free to contact me at
your convenience.
Respectfully,
Kelly W. Hafner, PE
Senior Project Manager
CivilWorx, LLC
Final Drainage and Erosion Control Report
Bloom Multi Family Development
Fort Collins, CO
ii C22026 - Bloom Multi Family Drainage Report FDP 1st Round.docx
TABLE OF CONTENTS
PAGE
I. General Location and Description ........................................................................................................................ 1
A. Location ....................................................................................................................................................... 1
B. Description of Property ............................................................................................................................... 2
II. Drainage Basins and Catchments ......................................................................................................................... 2
A. Major Basin Description............................................................................................................................... 2
B. Pre-Project Drainage Patterns ..................................................................................................................... 3
III. Drainage Design Criteria ...................................................................................................................................... 3
A. Regulations .................................................................................................................................................. 3
B. Development Criteria Reference and Constraints ....................................................................................... 3
C. Hydrological Criteria .................................................................................................................................... 3
D. Hydraulic Criteria and Governing Standards ............................................................................................... 3
IV. Drainage Facility Design ....................................................................................................................................... 4
A. General Developed Project Overview .......................................................................................................... 4
V. Sediment/Erosion Control .................................................................................................................................. 10
VI. Conclusions ........................................................................................................................................................ 11
A. Compliance with Standards ....................................................................................................................... 11
B. Drainage Plan ............................................................................................................................................. 11
VII. References ..................................................................................................................................................... 12
VIII. Certification ................................................................................................................................................... 13
Figure 1. Vicinity and Phase Map................................................................................................................................... 1
Figure 2. Lower Cooper Slough Drainage Basin – As Shown on the City of Fort Collins Website .................................. 2
Table 1. Existing Catchment Runoff Summary............................................................................................................... 3
Table 2. Developed Catchment Runoff Summary ......................................................................................................... 6
Table 3. Storm Sewer Piping Summary .......................................................................................................................... 7
Table 4. Storm Sewer Hydraulic Grade Line Summary .................................................................................................. 8
Table 5. Storm Sewer Inlet Interception Summary ....................................................................................................... 9
APPENDICES
APPENDIX A - Drainage Assessment and Plans
APPENDIX B - Water Quality Calculations
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Bloom Multi Family Development
Fort Collins, CO
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I. General Location and Description
A. Location
The Bloom Development (referred herein as “the site”) is located north of State Highway 14 (Mulberry
Street) and just west of Interstate 25. The site is located within the southwest half of Section 9, Township
7 North, Range 68 West of the 6th Principal Meridian in the City of Fort Collins, County of Larimer, State of
Colorado. The site is located on the parcel of land # 8709300004 with coordinates of 40.587086, -
105.016334. A vicinity map is shown with Figure 1.
Figure 1. Vicinity and Phase Map
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Bloom Multi Family Development
Fort Collins, CO
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B. Description of Property
Currently, the property is undeveloped. There are no structures or significant infrastructure located on
the site. The current use of the property is agriculture and farming and thus the existing land can be
characterized as a tilled field. Below is a detailed summary of the existing conditions:
Ground Cover - The site is currently being used as crop land and therefore ground conditions can
be characterized as tillage/field with varying seasonal crops.
Grades – In general, the entire site drains to the south. These grades are generally less than 1%,
with a few localized areas that slope at approximately 2%.
Soil Type - According to the Natural Resources Conservation (NRCS) web soil survey and report, the
site consists of Garret loam and Ascalon sandy loam soils of hydrologic soils groups Type B and C.
Utilities – The site does not have an existing utilities on it its property. Domestic water, sanitary
sewer, and storm water utilities have been designed and are planned to be built under roads that
will abut the property. Natural gas, telephone, fiber, and electric are planned to be installed in
and around the site at a future time.
Storm Drainage / Irrigation Facilities – The site does not contain any storm drainage infrastructure
except for surface drainage. No irrigation facilities are present on the site.
II. Drainage Basins and Catchments
A. Major Basin Description
This site is located within the Cooper Slough drainage basin as most recently described in the Mulberry
Master Drainage Plan (MDP) by Galloway Engineering Firm and dated April 6th, 2021, with the last revision
of the report being dated as October 13th, 2021.
Figure 2. Lower Cooper Slough Drainage Basin – As Shown on the City of Fort Collins Website
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Bloom Multi Family Development
Fort Collins, CO
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B. Pre-Project Drainage Patterns
The project site is located within the Cooper Slough Drainage Basin as shown Figure 2 above. The
proposed site area consists of approximately 15.8 acres. Four (4) proposed roads that will be
constructed as part of the Bloom 1st Filing Project and shown in the construction plans by Galloway
engineering surround the site property - Aria way on the west, Greenfields Drive on the east,
International Boulevard to the north, and Donella Drive to the south. The entire site drains to the south
but the site is generally flat. The site has localized areas that have grades of approximately 2%, but most
grades are less than 1%. The nearest receiving waters to the site are the Cooper slough drainage and
wetlands (approximately 1,200 feet from the site) that flow into the Boxelder Creek, which further
transports water to the Poudre River. Below is summary of the existing runoff generated by the site as
it exists pre-development.
Table 1. Existing Catchment Runoff Summary
Existing Site Area (ac.) %
Imperv.
Q2
cfs
Q100
cfs
Bloom Property 15.83 2 0.92 19.0
III. Drainage Design Criteria
A. Regulations
The design criteria for this development are the City of Fort Collins Stormwater Drainage Criteria Manual
(FCSDCM) dated March 2018 and the Mile High Flood District Criteria Manuals Volumes 2, and 3 (referred
to herein as MHFDCM).
B. Development Criteria Reference and Constraints
The criteria used as the basis to analyze and design stormwater features of this project were done so
according to the references cited in this report.
C. Hydrological Criteria
In accordance with the City of Fort Collins policy, a minor and major storm are identified as the 2-year and
100-year storms, respectively. These storms have been used as a basis for planning and design. The
proposed developed drainage networks, including the stormwater detention system, are designed using
the USEPA Stormwater Management Model (SWMM version 5.2.4) software. SWMM input parameters
for catchment runoff utilized Table 4.1-1 of the referenced FCSDCM.
Post development runoff for the site will be in accordance with the Mulberry and Greenfields Master
Drainage Plan developed by Galloway Engineering.
D. Hydraulic Criteria and Governing Standards
The developed site will convey runoff to a proposed detention pond on the southeast corner of the site
via a combination of channelized flow, sheet flow, and storm sewer, then release to the downstream
system per the approved Mulberry and Greenfields Master Drainage Report by Galloway Engineering.
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Bloom Multi Family Development
Fort Collins, CO
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SWMM modeling was used to estimate the required detention pond volume for the Bloom site. Hydraulic
calculations for all pipes and swales were also completed using EPA-SWMM and are included in this
report. SWMM catchment width parameters are calibrated using the theory of cascading planes (see Guo
reference). This method was also documented in the 2016 SWMM Hydrology Reference Manual published
by the EPA.
IV. Drainage Facility Design
A. General Developed Project Overview
The developed Bloom project site area includes the construction of multi-family homes, parking areas,
landscaped areas and access roads. The Bloom multi-family subdivision project is part of the Cooper
Slough basin whose ultimate outfall is the Boxelder Creek, located south of Colorado Highway 14
(Mulberry Street). Runoff from the Bloom-multifamily site will be captured using a combination of curb &
gutter and storm sewer pipe and conveyed to a proposed onsite detention facility. The proposed
detention pond will also include flows from adjacent property to the east, west and north as shown on
the Mulberry and Greenfields Master Drainage Plan by Galloway Engineering. Information on the
proposed Bloom site detention pond outlet structure and storm pipe will be provided by Galloway
engineering at a later date after their analysis incorporates the drainage modeling provided in this report.
Overall Drainage Plan
The overall drainage plan is to convey runoff to the detention facility on the southeast corner of the site
prior to discharging via a proposed outlet structure and storm pipe. Following is an analysis of the site
drainage concepts and routing as well as a summary of all of the proposed on site drainage Catchments.
All flow summaries at design points, including conveyance facilities, have been designed in detail as part
of the EPA SWMM model.
Catchment 01:
The 01 Catchment has an area of 2.08 acres and generally flows to the southeast. Runoff is conveyed via
street flow and channelized curb/gutter/pan flow to a Type C inlet located at the southeastern corner of
the Catchment. From here it is carried through Storm Line A into the proposed-on site detention pond.
Street capacities, inlet sizing, and storm sewer sizing were all completed using EPA-SWMM.
Catchment 02:
The 02 Catchment has an area of 1.57 acres and generally flows to the southeast. Runoff is conveyed via
street flow and channelized curb/gutter/pan flow to a Type C inlet located at the southern side of the
Catchment. From here it is carried through Storm Line C & B and A respectively, after which it drains into
the proposed-on site detention pond. Street capacities, inlet sizing, and storm sewer sizing were all
completed using EPA-SWMM.
Catchment 03:
The 03 Catchment has an area of 1.96 acres, is located at the central eastern portion of the site and
generally flows to the south. Runoff is conveyed via street flow and channelized curb/gutter/pan flow to
a Type R inlet located at the southern portion of the Catchment. From here it is carried through Storm
Lines C, B, and A respectively, after which it drains into the proposed-on site detention pond. Street
capacities, inlet sizing, and storm sewer sizing were all completed using EPA-SWMM.
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Bloom Multi Family Development
Fort Collins, CO
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Catchment 04:
The 04 Catchment has an area of 1.4 acres, is located at the central western portion of the site and
generally flows to the south. Runoff is conveyed via street flow and channelized curb/gutter/pan flow to
a Type C inlet located at the south side of the Catchment. From here it is carried through Storm Line A,
after which it drains into the proposed-on site detention pond. Street capacities, inlet sizing, and storm
sewer sizing were all completed using EPA-SWMM.
Catchment 05:
The 05 Catchment has an area of 1.03 acres, is in the central portion of the site and generally flows to the
south. Runoff is conveyed via street flow and channelized curb/gutter/pan flow to a Type R inlet located
at the southern portion of the Catchment. From here it is carried through Storm Lines B and A
respectively, after which it drains into the proposed-on site detention pond. Street capacities, inlet sizing,
and storm sewer sizing were all completed using EPA-SWMM.
Catchment 06:
The 06 Catchment has an area of 0.32 acres, is in the central portion of the site and generally flows to the
south. Runoff is conveyed via street flow and channelized curb/gutter/pan flow to a sidewalk chase/curb
cut where water then travels further south via a grass swale and into the proposed-on site detention
pond. Street capacities, inlet sizing, and storm sewer sizing were all completed using EPA-SWMM.
Catchment 07:
The 07 Catchment has an area of 1.64 acres, is located at the southwestern portion of the site and flows
to the center of itself where a proposed low point and Type R inlet is located. Runoff is conveyed via
street flow and channelized curb/gutter/pan flow to the Type R inlet. From here it is carried north and
east through Storm Lines A, after which it drains into the proposed-on site detention pond. Street
capacities, inlet sizing, and storm sewer sizing were all completed using EPA-SWMM.
Catchment 08:
The 08 Catchment has an area of 2.42 acres and is located at the southwestern portion of the site. This
Catchment is where the proposed detention pond for the site lies, and water eventually leaves the
detention pond via an outlet control structure located at the southwest corner of the Catchment. Overall
pond volume requirements were calculated with EPA-SWMM in conjunction with the Mile High Flood
District Drainage Criteria.
OS Catchments
OS 1: Catchment OS-1 is 0.84 acres, located at the Northwestern portion of the site and drains offsite to
the west via sheet flow and curb and gutter flow. All of the OS-1 flows will be captured in the proposed
Bloom Filing 1 storm sewer infrastructure and directed via storm pipe to detention features planned with
Bloom Filing 1 detention facilities.
OS 2: Catchment OS-2 is 0.23 acres, located at the Northwestern portion of the site and drains offsite to
the west via sheet flow and curb and gutter flow. All of the OS-2 flows will be captured in the proposed
Bloom Filing 1 storm sewer infrastructure and directed via storm pipe and inlets to the existing-off site
detention pond located on the north side of International Boulevard.
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Bloom Multi Family Development
Fort Collins, CO
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OS 3: Catchment OS-3 is 0.96 acres, located at the Northeastern portion of the site and drains offsite to
the north and east via sheet flow and curb and gutter flow. All of the OS-2 flows will be captured in the
proposed Bloom Filing 1 storm sewer infrastructure and directed via storm pipe and inlets to an offsite
detention pond to the east of the site.
OS 4: Catchment OS-4 is 0.85 acres, located at the western portion of the site and drains offsite to the
west via sheet flow and curb and gutter flow. OS-4 flows will be captured in the proposed Bloom Filing 1
storm sewer infrastructure and directed via storm pipe and inlets to the off-site detention facilities
associated with Bloom Filing 1.
OS 5: Catchment OS-5 is 0.74 acres, located at the southwestern portion of the site and drains to the west
via sheet flow and curb and gutter flow. OS-5 flows will be captured in the proposed Bloom Filing 1 storm
sewer infrastructure and directed via storm pipe and inlets to the off-site detention facilities associated
with Bloom Filing 1.
OS 6-9: Catchments OS-6 through OS-9 comprise perimeter and local street catchments that are not part
of the site but are included on the initial drainage plan as designs collaboration continues with the
Galloway project. These catchments comprise 3.318 acres and are made up of areas that will be flowing
to the proposed detention pond that are not on the Bloom-multifamily property and is not included in the
pond WQ calculations provided in appendix B. These Catchments include areas that surrounds the site
located within City of Fort Collins Right-of-Way and includes mostly asphalt and concrete surfaces with
some perimeter landscaping from the site property line to the centerline of each surrounding road.
Drainage Catchment Summaries
The following is a summary of the Catchment runoff characteristics:
Table 2. Developed Catchment Runoff Summary
Catchment Area
(ac.)
%
Imperv.
C2 Q2
cfs
C100 Q100
cfs
C-01 2.07 79% 0.721 2.5 0.913 14.5
C-02 1.56 82% 0.749 2.1 0.924 11.7
C-03 1.95 82% 0.748 2.5 0.923 14.1
C-04 1.40 84% 0.769 2.1 0.932 11.0
C-05 1.03 76% 0.700 1.5 0.906 7.9
C-06 0.32 47% 0.454 0.4 0.812 2.1
C-07 1.64 90% 0.819 2.4 0.950 12.8
C-08 2.38 21% 0.123 0.8 0.706 14.9
C-OS-1 0.71 62% 0.575 0.9 0.857 4.8
C-OS-2 0.23 12% 0.163 0.1 0.705 5.2
C-OS-3 1.00 52% 0.479 0.9 0.809 6.1
C-OS-4 0.85 69% 0.637 1.2 0.881 4.9
C-OS-5 0.74 58% 0.540 0.9 0.843 3.3
C-OS-6 0.71 79% 0.709 0.5 0.902 4.9
C-OS-7 0.75 77% 0.701 0.8 0.904 2.6
C-OS-8 0.47 77% 0.697 0.4 0.899 6.2
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Bloom Multi Family Development
Fort Collins, CO
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Table 2. Developed Catchment Runoff Summary
Catchment Area
(ac.)
%
Imperv.
C2 Q2
cfs
C100 Q100
cfs
C-OS-9 1.27 78% 0.702 0.9 0.900 1.9
Note the infiltration parameters prescribed by the FCSDCM represent fully saturated underlying soil
moisture conditions and thus produce very high runoff rates and volumetric yields.
Storm Sewers
The proposed drainage system for the Bloom Multifamily development was modeled in EPA-SWMM to
determine pipe sizing and flow routing. The SWMM models for the 100-year and 2-year storms are
included in Appendix B for reference.
• Storm Line A – This system drains the western portion of the site to the proposed WQCV
chambers and detention pond. This storm sewer connects to the other storm sewer
networks proposed at the site at STMH A-1-1. This system contains connected Type C
inlets and manholes working in series.
• Storm Line B – This system collects drainage from the central and southern portions of
the site via a type R inlet and receives flows from Storm Line C.
• Storm Line C – This system collects drainage from the eastern central and northern of the
site using 2 Type C inlets and conveys it through Storm Lines B then to the A system
respectively and into the proposed detention pond.
The table below summarizes the pipe flows for the major storm sewer systems for the project:
Table 3. Storm Sewer Piping Summary
Link Element Size
(in)
V2
fps
Q2
cfs
V100
fps
Q100
cfs
Upstream
Node
Downstream
Node
P-A-1 18 3.7 1.1 3.9 3.6 J-SDI-A-1-5 J-SDI-A-1-4
P-A-2 18 2.5 1.8 3.4 6.0 J-SDI-A-1-4 J-SDMH A-1-3
P-A2-1 18 3.4 2.2 4.2 7.4 J-SDI-A3-1 J-SDMH A-2-2
P-A2-2 18 2.4 2.2 4.2 7.4 J-SDMH A-2-2 J-SDMH A-2-1
P-A2-3 18 0.0 0.0 3.7 6.5 J-SDMH A-2-1 J-SDMH A-3
P-A2-4 18 2.4 2.2 3.0 4.6 J-STMH-CH-A-2-1 J-SDMH A-2-1
P-A-3 18 3.1 5.3 4.3 7.6 J-SDMH A-1-3 J-SDI A1-2
P-A-4 18 4.2 7.5 7.1 12.5 J-SDI A1-2 J-SDMH A1-1
P-A-5 18 4.9 8.7 9.3 16.4 J-SDMH A-4 J-SDMH A1-1
P-A-6 24 6.6 6.0 8.5 15.6 J-SDMH A-4 J-SDMH A-3
P-A-7 24 3.9 6.6 7.0 21.8 J-SDMH A-3 J-SDMH A-2
P-A-8 24 3.9 6.6 7.0 21.8 J-SDMH A-2 BLOOM-POND
P-A-UD-1 18 1.6 2.8 2.4 4.2 J-SDMH-CH-A-4-A J-SDMH A-4
P-A-UD-2 18 3.1 2.7 4.1 4.2 J-SDMH-CH-A-4-B J-SDMH-CH-A-4-A
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Bloom Multi Family Development
Fort Collins, CO
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Table 3. Storm Sewer Piping Summary
Link Element Size
(in)
V2
fps
Q2
cfs
V100
fps
Q100
cfs
Upstream
Node
Downstream
Node
P-B-1 18 0.8 1.4 3.8 6.6 J-SDI B-1 J-SDMH A1-1
P-C-A 18 1.7 0.9 1.8 2.9 J-SDI C-3 J-SDI-C-3-1
P-C-B 18 2.4 2.1 3.3 5.8 J-SDI-C-3-1 J-SDMH C-1
P-C-C 18 2.3 2.2 3.1 5.4 J-SDI-C-1 J-SDMH C-1
P-C-D 18 3.6 4.3 3.8 5.9 J-SDMH C-1 J-SDMH A-1-3
P-Z-POND-OUT 18 4.5 1.0 4.4 1.0 BLOOM-POND OUT-POND
Table 4. Storm Sewer Hydraulic Grade Line Summary
Node Element D2
ft
HGL2
ft
Q2
cfs
D100
ft
HGL100
ft
Q100
cfs
Detention Facilities
BLOOM-POND 2.1 4930.5 7.8 5.9 4934.3 74.8
Storm Sewer Structures
J-SDI A1-2 3.0 4936.1 7.5 6.6 4939.7 12.6
J-SDI B-1 2.0 4935.4 1.4 5.4 4938.8 8.7
J-SDI C-3 0.3 4938.6 0.9 2.5 4940.8 2.9
J-SDI-A-1-4 1.3 4936.8 1.7 5.3 4940.7 6.0
J-SDI-A-1-5 0.3 4938.7 1.1 2.6 4941.0 3.6
J-SDI-A3-1 1.8 4934.8 2.2 4.9 4938.0 8.1
J-SDI-C-1 1.0 4937.1 2.2 3.9 4940.0 5.4
J-SDI-C-3-1 1.1 4937.1 2.1 4.6 4940.6 5.8
J-SDMH A1-1 2.9 4935.4 8.7 6.0 4938.4 16.7
J-SDMH A-1-3 1.9 4936.7 5.6 5.5 4940.4 7.5
J-SDMH A-2 1.2 4932.6 6.6 3.2 4934.6 21.8
J-SDMH A-2-1 2.4 4934.8 2.2 4.9 4937.3 7.4
J-SDMH A-2-2 2.1 4934.8 2.2 4.9 4937.6 7.4
J-SDMH A-3 1.0 4933.2 6.6 4.6 4936.7 22.0
J-SDMH A-4 2.5 4934.9 8.7 4.8 4937.2 16.4
J-SDMH C-1 1.2 4937.0 4.3 4.5 4940.4 5.9
J-SDMH-CH-A-4-A 2.4 4934.8 2.8 4.9 4937.3 4.2
J-SDMH-CH-A-4-B 2.4 4934.8 3.2 5.5 4937.9 28.5
J-STMH-CH-A-2-1 2.4 4934.8 2.8 5.2 4937.6 24.7
Roadway Flowline/Curb at Storm Sewer Inlets
RD-INLET-A-1-4 0.1 4941.2 1.3 0.3 4941.4 10.4
RD-INLET-A-1-5 0.1 4942.7 2.5 0.3 4942.9 14.4
RD-SDI A1-2 0.2 4939.2 2.5 0.7 4939.7 17.3
RD-SDI-A3-1 0.2 4937.5 2.4 0.8 4938.1 12.5
RD-SDI-B-1 0.1 4938.3 1.4 0.7 4938.9 39.8
RD-SDI-C-1 0.2 4939.3 2.2 0.8 4939.9 24.6
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Fort Collins, CO
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Table 4. Storm Sewer Hydraulic Grade Line Summary
Node Element D2
ft
HGL2
ft
Q2
cfs
D100
ft
HGL100
ft
Q100
cfs
RD-SDI-C-3-1 0.2 4940.6 3.5 0.4 4940.8 21.7
RD-SDI-C-3A 0.1 4942.2 2.1 0.3 4942.4 11.6
Inlets
The proposed drainage system was modeled in EPA-SWMM. Inlet sizing and intercepted flows were
modeled using the SWMM analysis, with corresponding flowline depths associated with inlets are listed
in Table 4 from the assessment.
The table below summarizes intercepted flow with the proposed inlets for the minor and major storms:
Table 5. Storm Sewer Inlet Interception Summary
Inlet Name Inlet Type/Size Q2
cfs
Q100
cfs
SDI A1-2 Type R (10’) 2.4 6.8
SDI B-1 Type R (10’) 1.4 8.7
SDI C-3 Type C 0.9 2.9
SDI-A-1-4 Type R (10’) 0.6 2.6
SDI-A-1-5 Type C 1.1 3.6
SDI-A3-1 Type R (10’) 2.2 8.1
SDI-C-1 Type R (10’) 2.2 5.4
SDI-C-3-1 Type C 1.2 3.4
Street Capacity
The proposed drainage system for the development was modeled in SWMM. Street flows and curb &
gutter flow depths were also modeled using the SWMM analysis. The internal gutter system capacity is
presented as adequate for the conveyance of runoff to the perspective outfall.
Detention Pond Summary
Onsite detention was modeled using EPA-SWMM for pond volume and release rate calculations. Water
Quality volume was determined using Mile High Flood District methodologies. These calculations are
included in appendix B. The Bloom site detention pond also includes off-site flows and therefore, final
calculations will be provided at the Master level by Galloway Engineering for the overall development.
Required on site storage for the Bloom site alone is estimated at 0.623 AF for the 2-year storm and 3.244
AF for the 100-year storm respectively. The grading design shown on the submitted plans for this facility
includes an active storage of 6.849 AF below spillway and 7.564 AF maximum storage capacity.
Spillway Design
The proposed detention system is a cut-in or depressed system with limited embankment. A 56’ wide
broad-crested weir outlet is located in the southern part of the east side of the proposed detention facility.
Emergency overflow will be directed towards Greenfield Drive and south towards the Donella Drive
intersection.
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Bloom Multi Family Development
Fort Collins, CO
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Water Quality and LID Design
The site will incorporate water quality capture volume into the proposed detention pond for the
settlement and deposition of particles and contaminants. Sizing and calculations for this water quality
volume and outlet release structure can be found in Appendix B. For additional Low-Impact Development
water quality control, an underground stormwater chamber system is proposed with the site that will
treat on-site runoff prior to discharge into the proposed-on site detention pond. The criterion for this
approach requires one of the following options:
1) 50% of the newly added or modified impervious area must be treated by LID techniques and 25%
of new paved (vehicle use) areas must be pervious.
2) 75% of all newly added or modified impervious area must be treated by LID techniques.
For this site Option 2 is utilized. The below table outlines the LID treated area calculations.
SF Acre % of
Total
Total Site Area 692,610 15.900 100.0%
Measured Impervious 462,688 10.622 66.8%
Measured Landscaped 229,922 5.278 33.2%
New Impervious
Required to LID 340,530 7.817 75%
Actual to LID Feature 347,451 7.986 75.1%
The mapping of the LID calculations along with calculations for the water quality chamber system can also
be found in Appendix B. It is noted that runoff from a large portion of the perimeter is disconnected
impervious area but for this report, is not assessed for inclusion in the LID measurements.
The final drainage plan proposes to install the required WQ chambers with the initial construction phase
of the project.
V. Sediment/Erosion Control
In addition to the information provided below, A separate Storm Water Management Plan (SWMP) was
prepared for this site in accordance with the Stormwater Discharge Permit for Colorado Department of
Public Health and Environment and the City of Fort Collins criteria. This document is not included with
this report but is part of the submittal. The SWMP has more detailed information on the sediment and
erosion control items for this project. For reference, the erosion control plan sheets are provided in
Appendix A.
Final Drainage and Erosion Control Report
Bloom Multi Family Development
Fort Collins, CO
11
VI. Conclusions
A. Compliance with Standards
Storm drainage calculations have followed the guidelines provided by the City of Fort Collins Stormwater
Criteria manual and the Mile High Flood District Manuals Volumes 2, and 3.
B. Drainage Plan
The drainage system is not anticipated to have issues associated with conveyance, collection or detention
based on the work to date in the subdivision planning. No negative impacts are expected due to this
development as related to the existing downstream drainage networks or subdivisions. The Final drainage
plan for the Bloom multifamily development is submitted as being both viable and sound in terms of
drainage planning in both the short- and long-term for the City of Fort Collins.
Final Drainage and Erosion Control Report
Bloom Multi Family Development
Fort Collins, CO
12
VII. References
1. City of Fort Collins Stormwater Criteria Manual, As adopted by the City Council of the City of
Fort Collins, as referenced in Section 26-500 of the Code of the City of Fort Collins, Revised
December 2018.
2. Mile High Floor District Drainage Criteria Manuals 2 and 3, Urban Drainage and Flood Control
District, Denver, Colorado, November 2010 with some sections revised January 2021.
3. Storm Water Management Model, Reference Manual Volume I, Hydrology, U.S.
Environmental Protection Agency, January 2016.
4. Storm Water Management Model, Reference Manual Volume II, Hydraulics, U.S.
Environmental Protection Agency, May 2017.
5. Mulberry Master Drainage Report, City of Fort Collins – Galloway, revised October 13th, 2021.
6. Conversion of Natural Watershed to Kinematic Wave Cascading Plane, Guo, J.C.Y. and
Urbonas, B., Journal of Hydrologic Engineering, Vol. 14, No. 8, pp. 839-846, July/August 2009.
Final Drainage and Erosion Control Report
Bloom Multi Family Development
Fort Collins, CO
13
VIII. Certification
"I hereby attest that this report for the Final drainage design of the Drehle subdivision was prepared by
me, or under my direct supervision, in general accordance with the provisions of the City of Fort Collins
Storm Drainage Design Criteria for the responsible parties thereof. I understand that the City of Fort
Collins does not and shall not assume liability for drainage facilities designed by others.”
<Sealed with Final Approval>
_____________________________________
Kelly W. Hafner
Registered Professional Engineer
State of Colorado No. 40968
Final Drainage and Erosion Control Report
Bloom Multi Family Development
Fort Collins, CO
A
APPENDIX A
DRAINAGE AND EROSION CONTROL PLAN MAPS
PH
A
S
E
1
PH
A
S
E
2
PO
T
T
E
R
D
R
I
V
E
(
P
R
I
V
A
T
E
S
T
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T
)
BE
L
L
A
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L
A
N
E
(
P
R
I
V
A
T
E
S
T
R
E
E
T
)
CLUBHOUSE
A A A
B
B
E B
STORM LINE A
STORM LINE A:
STORM LINE B:
WQ CHAMBERS
(LID) SYSTEM
STORM LINE C:
INLET A-1-5
SDI C-3
SDMH A-1-3
INLET-A-1-4
SDMH A1-1
SDMH C-1
SDI C-1
SDMH A-3 (60"Ø)
SDMH A-2 (60"Ø)
SDMH A-2
SDMH A-2-2
SDMH A-2
SDI B-1
SDI A3-1
FES A-1
24
"
24
"
24"
18"
18"
18
"
18
"
18
"
18"
18
"
18"18"
18"
18"
01
2.08 79%
02
1.57 82%
03
1.96 82%
04
1.40 84%
05
1.03 76%
06
0.32 47%
07
1.64 90%
08
2.42 21%
OS-1
0.84 62%
OS-3
1.00 52%
OS-4
0.85 69%
OS-5
0.74 58%
OS-6
0.71 88%
OS-7
0.75 77%
OS-8
0.47 77%
OS-9
1.27 78%
OS-2
0.23 12%
CHAMBER MH
SDI C-3 (1)
DR
A
I
N
A
G
E
P
L
A
N
1" = 60'
1" = 60'
16
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HORIZONTAL:
SCALE
4025 Automation Way
Suite B2
Fort Collins, CO 80525
(970) 698-6046
CivilWorxeng.com
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42
PRELIMINARY
NOT FOR
CONSTRUCTION
POTTER DRIVE (PRIVATE STREET)
BELLAMY LANE (PRIVATE STREET)
00 60'120'
SCALE: 1" = 60'
30'
PH
A
S
E
2
KEYMAP
NTS
LEGEND
MAPPING / SITE
PROPERTY BOUNDARY
RIGHT-OF-WAY
LOT LINES
EASEMENTS
CENTER LINE
CURB AND GUTTER
EXISTING CONTOURS
PROPOSED CONTOURS
PHASING LINE
PROPOSED UTILITIES
STORM DRAIN PIPE
FLARED END SECTION
STORM DRAIN INLET
STORM DRAIN OUTLET
RIP RAP
NOTES
1.SEE GRADING SHEETS FOR ADDITIONAL
SPOT ELEVATIONS FOR THE PROJECT.
2.SEE EROSION CONTROL PLANS FOR
ADDITIONAL INFORMATION.
EXISTING UTILITIES
STORM DRAIN PIPE
FLARED END SECTION
STORM DRAIN INLET
STORM DRAIN OUTLET
RIP RAP
D-101
GRADING
BASIN BOUNDARY
DESIGN POINT
BASIN LABEL
BASIN IMPERVIOUSNESS
BASIN AREA
FLOW DIRECTION
PH
A
S
E
1
IP
SFSFSF
SF
SF
SF
SF
SFVTC
A
SF
VTC
PROJECT LIMITS OF DISTURBANCE
PHASE 1: 12.78 ACRES
PHASE 2: 3.72 ACRES
TOTAL: 16.50 ACRES
CWA
RS
A
A
ER
O
S
I
O
N
C
O
N
T
R
O
L
P
L
A
N
-
I
N
I
T
I
A
L
1" = 60'
1" = 60'
17
EC01
PR
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D
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:
JOB NUMBER
SHEET NUMBER
SHEETSOF
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:
VERTICAL:
HORIZONTAL:
SCALE
4025 Automation Way
Suite B2
Fort Collins, CO 80525
(970) 698-6046
CivilWorxeng.com
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08
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0
1
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2
0
2
3
42
PRELIMINARY
NOT FOR
CONSTRUCTION
POTTER DRIVE (PRIVATE STREET)
BELLAMY LANE (PRIVATE STREET)
00 60'120'
SCALE: 1" = 60'
30'
PHASE 2
TOTAL PROJECT
DISTURBED AREA 16.50 ACRES
TOTAL "ONSITE" AREA
OF DISTURBANCE 15.91 ACRES
TOTAL "OFFSITE" AREA
OF DISTURBANCE 0.59 ACRES
TOTAL
STORAGE/STAGING
AREA
0.5000 ACRES
TOTAL HAUL ROADS
AREA N/A
CONSTRUCTION
VEHICLE TRAFFIC AREA N/A
ESTIMATED PERCENT
OF PROJECT AREA
EXPOSED
100%
ESTIMATED PERCENT
VEGETATIVE COVER ~95%DENSITY
EXISTING SOIL TYPE TYPE B & C SANDY/LOAM
GROUNDWATER DEPTH FEET
NUMBER OF PHASES
W/PROJECT 2
TOTAL VOUME OF
IMPORTED (+) /
EXPORTED (-)
MATERIALS
(+) 155,000 CUBIC YARDS
TOTAL AREA OF
STOCKPILING OF FILL
OR BORROW AREAS OFF
SITE
SQUARE FEET
STEEPEST SLOPE 4 H:V
DISTANCE FROM A
RIPARIAN AREA OF
SENSITIVE AREA
1,200 FEET
KEYMAP
NTS
LEGEND
MAPPING / SITE
PROPERTY BOUNDARY
RIGHT-OF-WAY
LOT LINES
CENTER LINE
CURB AND GUTTER
PHASING LINE
EROSION CONTROL
VEHICLE TRACKING
CONTROL PAD
WATTLE DIKE
TEMPORARY SEDIMENT
INLET PROTECTION
TURF REINFORCEMENT MAT
SILT FENCE
STOCKPILE MANAGEMENT
SURFACE ROUGHENING
CONCRETE WASHOUT
STRUCTURE
PERMANENT SEEDING
SILT FENCE TO BE REMOVED
PERIMETER PROTECTION
DURING BUILDING
CONSTRUCTION
NOTES
1.THE CONTRACTOR IS RESPONSIBLE FOR
VERIFYING THE FIELD CONDITIONS ARE AS
SHOWN IN THE DRAWINGS. IF THE
CONTRACTOR FINDS DISCREPANCIES THE
CONTRACTOR SHALL CONTACT THE
ENGINEER.
2.ALL DISTURBED AREAS SHALL BE
REVEGETATED.
3.EROSION CONTROL PRACTICES, SITE
PROTECTION, AND REVEGETATION
METHODS SHALL FOLLOW CITY
REGULATIONS.
4.IN ADDITION TO THE EROSION CONTROL
MEASURES SHOWN ON THIS DRAWING, THE
CONTRACTOR SHALL COMPLETE,
COORDINATE WITH, AND UPDATE AS
REQUIRED, THE STORMWATER POLLUTION
PREVENTION PLAN (SWPP) FOR THIS
PROJECT.
5.CONTRACTOR TO TERRACE SLOPES USING
A "TRACKED" VEHICLE, RUN
PERPENDICULAR TO SLOPE TO INHIBIT
RILL/GULLEY EROSION, CONTRACTOR MAY
USE OTHER WINDROW-TYPE METHODS AS
APPROVED BY ENGINEER. TYPICAL ALL
SLOPES, REPEAT AS NECESSARY UNTIL
LANDSCAPING IS INSTALLED.
6.ANY AREAS USED FOR STOCKPILING
AND/OR STAGING SHOULD ALSO HAVE
SEDIMENT AND EROSION CONTROL
MEASURES AS NECESSARY. THESE AREAS
SHOULD BE LOCATED AT LEAST 100' AWAY
FROM DRAINAGE WAYS. THE SWMP
SHOULD BE UPDATED TO SHOW THESE
AREAS AND SEDIMENT AND EROSION
CONTROL ITEMS. THE ITEMS MAY INCLUDE
BUT ARE NOT LIMITED TO VEHICLE
TRACKING CONTROL, SILT FENCE,
CONSTRUCTION FENCE, CONCRETE
WASHOUT, AND SEDIMENT TRAP.
7.TEMPORARY SEEDING OR TACKIFER
PLACEMENT SHALL BE UTILIZED IN THE
EVENT THAT A GRADED AREA IS EXPOSED
LONGER THAN 14 DAYS WITH NO
CONSTRUCTION ACTIVITY.
8.TURF REINFORCEMENT MAT SHALL BE
PYRAMAT OR APPROVED EQUAL.
9.CONTRACTOR SHALL REMOVE ALL
SEDIMENT, MUD, CONSTRUCTION DEBRIS,
OR OTHER POTENTIAL POLLUTANTS THAT
MAY HAVE BEEN DISCHARGED TO OR,
ACCUMULATE IN, THE FLOW LINES AND
PUBLIC RIGHTS-OF-WAY OF THE CITY, AS A
RESULT OF CONSTRUCTION ACTIVITIES
ASSOCIATED WITH THIS DEVELOPMENT OR
CONSTRUCTION PROJECT. SAID REMOVAL
SHALL BE CONDUCTED DAILY, AS MAY BE
REQUIRED. SUCH MATERIALS SHALL BE
PREVENTED FROM ENTERING THE STORM
SEWER.
10.THE PROJECT LANDSCAPE PLAN WILL
CONTAIN THE DETAILED INFORMATION
REGARDING REQUIRED SEED TYPES/MIXES.
11.SEE THE GENERAL NOTES SHEETS FOR ALL
OF THE CITY OF FORT COLLINS EROSION
CONTROL NOTES.
VTC
WD
TS
IP
TRM
SF
LIMITS OF DISTURBANCE
RIP RAP
FLOW DIRECTION
SF
SRSR
CWA
PSPS
A
B
BBBB
B B
B
B
PHASE 1
PHASE 1 STOCKPILE
Implementation Timeline: Initial Overlot Grading Prior to Utility Construction
PO
T
T
E
R
D
R
I
V
E
(
P
R
I
V
A
T
E
S
T
R
E
E
T
)
BE
L
L
A
M
Y
L
A
N
E
(
P
R
I
V
A
T
E
S
T
R
E
E
T
)
IP
IP
IP
IP
IP
IP
SFSFSF
SF
SF
A
SF
SFVTC
TS
4.8:1
4.1:1
4.
0
:
1
5
.
2
:
1
7.6:1
4.
7
:
1
5.2:
1
5.5:1
4.8
:
1
6.
0
:
1
SF
SF
VTC
SR
SR
SR
SR
SR
SR
PROJECT LIMITS OF DISTURBANCE
PHASE 1: 12.78 ACRES
PHASE 2: 3.72 ACRES
TOTAL: 16.50 ACRES
CWA
WD
WDWD
WD
WD
WD
WD
WD WDWD
WD
WD
WD
WD
WD
WD WD
WD
WD
WD
WD
WD
WD
WD
WD
WD
WD
WD
WD
WDWD
WD
WD
WD
SR SR
SR SR
SRSRSR SR
SR
RS
IP
A
WDIP
WD
IP
WD
WD
ER
O
S
I
O
N
C
O
N
T
R
O
L
P
L
A
N
-
I
N
T
E
R
I
M
1" = 60'
1" = 60'
18
EC02
PR
E
P
A
R
E
D
F
O
R
:
JOB NUMBER
SHEET NUMBER
SHEETSOF
DA
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S
U
B
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I
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D
:
Th
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NO
.
BY
DA
T
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CAUTION
RE
V
I
S
I
O
N
S
:
VERTICAL:
HORIZONTAL:
SCALE
4025 Automation Way
Suite B2
Fort Collins, CO 80525
(970) 698-6046
CivilWorxeng.com
BL
O
O
M
M
U
L
T
I
-
F
A
M
I
L
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C22026
HA
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F
O
R
D
H
O
M
E
S
08
/
0
1
/
2
0
2
3
42
PRELIMINARY
NOT FOR
CONSTRUCTION
POTTER DRIVE (PRIVATE STREET)
BELLAMY LANE (PRIVATE STREET)
00 60'120'
SCALE: 1" = 60'
30'
PHASE 2
TOTAL PROJECT DISTURBED AREA 16.50 ACRES
TOTAL "ONSITE" AREA OF
DISTURBANCE 15.91 ACRES
TOTAL "OFFSITE" AREA OF
DISTURBANCE 0.59 ACRES
TOTAL STORAGE/STAGING AREA 0.5000 ACRES
TOTAL HAUL ROADS AREA N/A
CONSTRUCTION VEHICLE TRAFFIC
AREA N/A
ESTIMATED PERCENT OF PROJECT
AREA EXPOSED 100%
ESTIMATED PERCENT VEGETATIVE
COVER ~95%DENSITY
EXISTING SOIL TYPE TYPE B & C SANDY/LOAM
GROUNDWATER DEPTH FEET
NUMBER OF PHASES W/PROJECT 2
TOTAL VOUME OF IMPORTED (+) /
EXPORTED (-) MATERIALS (+) 155,000 CUBIC YARDS
TOTAL AREA OF STOCKPILING OF FILL
OR BORROW AREAS OFF SITE SQUARE FEET
STEEPEST SLOPE 4 H:V
DISTANCE FROM A RIPARIAN AREA OF
SENSITIVE AREA 1,200 FEET
KEYMAP
NTS
LEGEND
MAPPING / SITE
PROPERTY BOUNDARY
RIGHT-OF-WAY
LOT LINES
CENTER LINE
CURB AND GUTTER
PHASING LINE
EROSION CONTROL
VEHICLE TRACKING
CONTROL PAD
WATTLE DIKE
TEMPORARY SEDIMENT
INLET PROTECTION
TURF REINFORCEMENT MAT
SILT FENCE
STOCKPILE MANAGEMENT
SURFACE ROUGHENING
CONCRETE WASHOUT
STRUCTURE
PERMANENT SEEDING
SILT FENCE TO BE REMOVED
PERIMETER PROTECTION
DURING BUILDING
CONSTRUCTION
NOTES
1.THE CONTRACTOR IS RESPONSIBLE FOR
VERIFYING THE FIELD CONDITIONS ARE AS
SHOWN IN THE DRAWINGS. IF THE
CONTRACTOR FINDS DISCREPANCIES THE
CONTRACTOR SHALL CONTACT THE
ENGINEER.
2.ALL DISTURBED AREAS SHALL BE
REVEGETATED.
3.EROSION CONTROL PRACTICES, SITE
PROTECTION, AND REVEGETATION
METHODS SHALL FOLLOW CITY
REGULATIONS.
4.IN ADDITION TO THE EROSION CONTROL
MEASURES SHOWN ON THIS DRAWING, THE
CONTRACTOR SHALL COMPLETE,
COORDINATE WITH, AND UPDATE AS
REQUIRED, THE STORMWATER POLLUTION
PREVENTION PLAN (SWPP) FOR THIS
PROJECT.
5.CONTRACTOR TO TERRACE SLOPES USING
A "TRACKED" VEHICLE, RUN
PERPENDICULAR TO SLOPE TO INHIBIT
RILL/GULLEY EROSION, CONTRACTOR MAY
USE OTHER WINDROW-TYPE METHODS AS
APPROVED BY ENGINEER. TYPICAL ALL
SLOPES, REPEAT AS NECESSARY UNTIL
LANDSCAPING IS INSTALLED.
6.ANY AREAS USED FOR STOCKPILING
AND/OR STAGING SHOULD ALSO HAVE
SEDIMENT AND EROSION CONTROL
MEASURES AS NECESSARY. THESE AREAS
SHOULD BE LOCATED AT LEAST 100' AWAY
FROM DRAINAGE WAYS. THE SWMP
SHOULD BE UPDATED TO SHOW THESE
AREAS AND SEDIMENT AND EROSION
CONTROL ITEMS. THE ITEMS MAY INCLUDE
BUT ARE NOT LIMITED TO VEHICLE
TRACKING CONTROL, SILT FENCE,
CONSTRUCTION FENCE, CONCRETE
WASHOUT, AND SEDIMENT TRAP.
7.TEMPORARY SEEDING OR TACKIFER
PLACEMENT SHALL BE UTILIZED IN THE
EVENT THAT A GRADED AREA IS EXPOSED
LONGER THAN 14 DAYS WITH NO
CONSTRUCTION ACTIVITY.
8.TURF REINFORCEMENT MAT SHALL BE
PYRAMAT OR APPROVED EQUAL.
9.CONTRACTOR SHALL REMOVE ALL
SEDIMENT, MUD, CONSTRUCTION DEBRIS,
OR OTHER POTENTIAL POLLUTANTS THAT
MAY HAVE BEEN DISCHARGED TO OR,
ACCUMULATE IN, THE FLOW LINES AND
PUBLIC RIGHTS-OF-WAY OF THE CITY, AS A
RESULT OF CONSTRUCTION ACTIVITIES
ASSOCIATED WITH THIS DEVELOPMENT OR
CONSTRUCTION PROJECT. SAID REMOVAL
SHALL BE CONDUCTED DAILY, AS MAY BE
REQUIRED. SUCH MATERIALS SHALL BE
PREVENTED FROM ENTERING THE STORM
SEWER.
10.THE PROJECT LANDSCAPE PLAN WILL
CONTAIN THE DETAILED INFORMATION
REGARDING REQUIRED SEED TYPES/MIXES.
11.SEE THE GENERAL NOTES SHEETS FOR ALL
OF THE CITY OF FORT COLLINS EROSION
CONTROL NOTES.
VTC
WD
TS
IP
TRM
SF
LIMITS OF DISTURBANCE
RIP RAP
FLOW DIRECTION
SF
SRSR
CWA
PSPS
A
B
BBBB
B B
B
B
PHASE 1
PHASE 1 STOCKPILE
Implementation Timeline: Utility Installation and Building Construction
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PROJECT LIMITS OF DISTURBANCE
PHASE 1: 12.78 ACRES
PHASE 2: 3.72 ACRES
TOTAL: 16.50 ACRES
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VERTICAL:
HORIZONTAL:
SCALE
4025 Automation Way
Suite B2
Fort Collins, CO 80525
(970) 698-6046
CivilWorxeng.com
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C22026
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PRELIMINARY
NOT FOR
CONSTRUCTION
POTTER DRIVE (PRIVATE STREET)
BELLAMY LANE (PRIVATE STREET)
00 60'120'
SCALE: 1" = 60'
30'
PHASE 2
TOTAL PROJECT
DISTURBED AREA 16.50 ACRES
TOTAL "ONSITE" AREA
OF DISTURBANCE 15.91 ACRES
TOTAL "OFFSITE" AREA
OF DISTURBANCE 0.59 ACRES
TOTAL
STORAGE/STAGING
AREA
0.5000 ACRES
TOTAL HAUL ROADS
AREA N/A
CONSTRUCTION
VEHICLE TRAFFIC AREA N/A
ESTIMATED PERCENT
OF PROJECT AREA
EXPOSED
100%
ESTIMATED PERCENT
VEGETATIVE COVER ~95%DENSITY
EXISTING SOIL TYPE TYPE B & C SANDY/LOAM
GROUNDWATER DEPTH FEET
NUMBER OF PHASES
W/PROJECT 2
TOTAL VOUME OF
IMPORTED (+) /
EXPORTED (-)
MATERIALS
(+) 155,000 CUBIC YARDS
TOTAL AREA OF
STOCKPILING OF FILL
OR BORROW AREAS OFF
SITE
SQUARE FEET
STEEPEST SLOPE 4 H:V
DISTANCE FROM A
RIPARIAN AREA OF
SENSITIVE AREA
1,200 FEET
KEYMAP
NTS
LEGEND
MAPPING / SITE
PROPERTY BOUNDARY
RIGHT-OF-WAY
LOT LINES
CENTER LINE
CURB AND GUTTER
PHASING LINE
EROSION CONTROL
VEHICLE TRACKING
CONTROL PAD
WATTLE DIKE
TEMPORARY SEDIMENT
INLET PROTECTION
TURF REINFORCEMENT MAT
SILT FENCE
STOCKPILE MANAGEMENT
SURFACE ROUGHENING
CONCRETE WASHOUT
STRUCTURE
PERMANENT SEEDING
SILT FENCE TO BE REMOVED
PERIMETER PROTECTION
DURING BUILDING
CONSTRUCTION
NOTES
1.THE CONTRACTOR IS RESPONSIBLE FOR
VERIFYING THE FIELD CONDITIONS ARE AS
SHOWN IN THE DRAWINGS. IF THE
CONTRACTOR FINDS DISCREPANCIES THE
CONTRACTOR SHALL CONTACT THE
ENGINEER.
2.ALL DISTURBED AREAS SHALL BE
REVEGETATED.
3.EROSION CONTROL PRACTICES, SITE
PROTECTION, AND REVEGETATION
METHODS SHALL FOLLOW CITY
REGULATIONS.
4.IN ADDITION TO THE EROSION CONTROL
MEASURES SHOWN ON THIS DRAWING, THE
CONTRACTOR SHALL COMPLETE,
COORDINATE WITH, AND UPDATE AS
REQUIRED, THE STORMWATER POLLUTION
PREVENTION PLAN (SWPP) FOR THIS
PROJECT.
5.CONTRACTOR TO TERRACE SLOPES USING
A "TRACKED" VEHICLE, RUN
PERPENDICULAR TO SLOPE TO INHIBIT
RILL/GULLEY EROSION, CONTRACTOR MAY
USE OTHER WINDROW-TYPE METHODS AS
APPROVED BY ENGINEER. TYPICAL ALL
SLOPES, REPEAT AS NECESSARY UNTIL
LANDSCAPING IS INSTALLED.
6.ANY AREAS USED FOR STOCKPILING
AND/OR STAGING SHOULD ALSO HAVE
SEDIMENT AND EROSION CONTROL
MEASURES AS NECESSARY. THESE AREAS
SHOULD BE LOCATED AT LEAST 100' AWAY
FROM DRAINAGE WAYS. THE SWMP
SHOULD BE UPDATED TO SHOW THESE
AREAS AND SEDIMENT AND EROSION
CONTROL ITEMS. THE ITEMS MAY INCLUDE
BUT ARE NOT LIMITED TO VEHICLE
TRACKING CONTROL, SILT FENCE,
CONSTRUCTION FENCE, CONCRETE
WASHOUT, AND SEDIMENT TRAP.
7.TEMPORARY SEEDING OR TACKIFER
PLACEMENT SHALL BE UTILIZED IN THE
EVENT THAT A GRADED AREA IS EXPOSED
LONGER THAN 14 DAYS WITH NO
CONSTRUCTION ACTIVITY.
8.TURF REINFORCEMENT MAT SHALL BE
PYRAMAT OR APPROVED EQUAL.
9.CONTRACTOR SHALL REMOVE ALL
SEDIMENT, MUD, CONSTRUCTION DEBRIS,
OR OTHER POTENTIAL POLLUTANTS THAT
MAY HAVE BEEN DISCHARGED TO OR,
ACCUMULATE IN, THE FLOW LINES AND
PUBLIC RIGHTS-OF-WAY OF THE CITY, AS A
RESULT OF CONSTRUCTION ACTIVITIES
ASSOCIATED WITH THIS DEVELOPMENT OR
CONSTRUCTION PROJECT. SAID REMOVAL
SHALL BE CONDUCTED DAILY, AS MAY BE
REQUIRED. SUCH MATERIALS SHALL BE
PREVENTED FROM ENTERING THE STORM
SEWER.
10.THE PROJECT LANDSCAPE PLAN WILL
CONTAIN THE DETAILED INFORMATION
REGARDING REQUIRED SEED TYPES/MIXES.
11.SEE THE GENERAL NOTES SHEETS FOR ALL
OF THE CITY OF FORT COLLINS EROSION
CONTROL NOTES.
VTC
WD
TS
IP
TRM
SF
LIMITS OF DISTURBANCE
RIP RAP
FLOW DIRECTION
SF
SRSR
CWA
PSPS
A
B
BBBB
B B
B
B
PHASE 1
Implementation Timeline: Paving to Final Restoration
BBB
B B
B
B
B
Final Drainage and Erosion Control Report
Bloom Multi Family Development
Fort Collins, CO
B
APPENDIX B
WATER QUALITY AND LID CALCULATIONS
SWMM Calibration Parameters
Inlet Calibration Parameters
Detention Pond Volume
SWMM Model Overview
100-Year SWMM Model Status Report
2-Year SWMM Model Status Report
Runoff Coefficients and % Impervious for Chamber System
Roof (1)Asphalt Walks(1)Gravel(1)Lawns(1)
%I = 90% %I = 100% %I = 90% %I =40% %I=2%
acres sf sf sf sf sf sf
C2 C5 C10 C25 C50 C100
0.0 0 - - - - - - -
0.0 0 0 0 0 0 0 -- - - - - -
Proposed Site to Chambers WQ Chambers
12.1 524976 85980 233600 66225 0 139171 71.1% C/D 0.764 0.764 0.764 0.956 0.956 0.956
0 - - - - - - -
Onsite Total 12.1 524976 85980 233600 66225 0 139171 71%0.764 0.764 0.764 0.956 0.956 0.956
Notes:
(1) Recommended % Imperviousness Values from USDCM Vol 1 - Ch 5 - Table RO-3. Increased Lawns from 0% to 2% Impervious.
(2) Runoff C is based on %I, UDFCD Eq RO-7 and correction factors in Table RO-4.
(3) Impervious area assumed to be 2500 s.f. of roof and 500 s.f. of driveway per single family and twin home lot.
Proposed Basins
Existing Basins
Onsite Total
Basin
Areas
Composite
Imperviousness
(%I)
Total TotalDesign Pt.Composite Runoff Coefficients (2)NRCS Soil
Type
Calculations by: KWH
Date: 6/6/2023 D:\Civilworx\CivilWorx Dropbox\CivilWorx\Projects\2022\C22026 - Bloom Multi Family\06_Design\Reports\Drainage\C22026 - Bloom WQ Chamber Sizing.xlsm
TIME OF CONCENTRATION FOR CHAMBER SYSTEM FLOWS
Area Length Slope ti
(2)Length Slope Velocity (3)tt
(4)Check tc?Total
Length tc
(5)
acres ft % min ft % fps min min Urban? ft min min
Existing Basins 0.00 0.0 - - - - - - - -
0.0 - - - - - - - -
Proposed Site to Chambers WQ Chambers 12.1 Paved 0.90 115 2 3.1 1126 0.85 20 1.8 10.2 13.2 Yes 1241 17 13
Notes:
(1) C5 based initial ground type and Table RO-5 (4)tt=L/(V*60 sec/min)
(2)ti = [1.8(1.1-C5)L1/2]/S1/3, S= slope in %, L=length of overland flow (400' max)(5)tc check (for urban or developed areas only) = total length/180 + 10
(3)V=CvS0.5, S=watercourse slope in ft/ft, UDFCD Equation RO-4 (6)min tc = 5 min
Proposed Basins
Basin Design Pt.
Initial Overland Flow Time (ti)Travel/Channelized Time of Flow (tt)
ti+tt
tc Check for Urbanized Basins
Final tc
(6)Initial
Ground
Type
C5
(1)Cv
0
Water Quality Required for Chamber System
Area (acres)Area Watershed WQCV* (cf)
(sf) (acres) (inches) (Extended Detention)
Proposed
Site 524,976 12.052 71%0.28 14,709
---
14,709Total
* based on 40 hr storage and additional 20% for extended detention
Basin %I
Required Onsite Water Quality Capture Volume
Calculations by: bao
Date: 1/6/2023 D:\Civilworx\CivilWorx Dropbox\CivilWorx\Projects\2022\C22026 - Bloom Multi Family\06_Design\Reports\Drainage\C22026 - Bloom WQ Chamber Sizing.xlsm
1/2 OF THE 2-YEAR STORM TO CHAMBER SYSTEM
Final Runoff Coefficients Rainfall Intensity Peak Discharge
tc
(6)I Q
acre min in/hr cfs
Proposed Site to
Chambers WQ Chambers 12.1 13 0.764 1.04 9.60
9.60Totals
Proposed Basins
Design Pt.AreaBasin
C
Calculations by: BAO
Date: 1/6/2023 D:\Civilworx\CivilWorx Dropbox\CivilWorx\Projects\2022\C22026 - Bloom Multi Family\06_Design\Reports\Drainage\C22026 - Bloom WQ Chamber Sizing.xlsm
Volume to Chambers
(FAA Method)
100 year storm into detention facility
Area (sf) Area (acres)C2
524976 12.052 0.76
Release rate out of chamber system
Qout (cfs) cfs/acre Tc (min)
10.791
Rainfall
Intensity
Inflow
Volume
Adjustment
Factor
Average Outflow
Rate Outflow Volume Required
Storage Volume
I Vi=(Qin*T*60)m= 0.5(1 +
Tc/T)Qav = m*Qout Vo=Qav*T *60 Vs=Vi-Vo
min in/hr cfs
ft 3 cfs ft 3 ft 3
5 1.43 13.1 3,938 0.50 5.40 1,619 2,320
10 1.11 10.2 6,108 0.50 5.40 3,237 2,871
15 0.94 8.6 7,753 0.50 5.40 4,856 2,897
20 0.81 7.4 8,900 0.50 5.40 6,475 2,425
25 0.72 6.6 9,881 0.50 5.40 8,093 1,787
30 0.65 6.0 10,779 0.50 5.40 9,712 1,067
35 0.60 5.5 11,511 0.50 5.40 11,331 181
40 0.54 4.9 11,829 0.50 5.40 12,949 -1,120
45 0.50 4.6 12,313 0.50 5.40 14,568 -2,255
50 0.46 4.2 12,714 0.50 5.40 16,187 -3,473
55 0.44 4.0 13,225 0.50 5.40 17,805 -4,580
60 0.41 3.8 13,598 0.50 5.40 19,424 -5,826
70 0.37 3.4 14,123 0.50 5.40 22,661 -8,538
80 0.33 3.0 14,593 0.50 5.40 25,898 -11,305
90 0.31 2.8 15,173 0.50 5.40 29,136 -13,962
100 0.28 2.6 15,477 0.50 5.40 32,373 -16,896
110 0.26 2.4 15,809 0.50 5.40 35,610 -19,801
120 0.25 2.3 16,251 0.50 5.40 38,848 -22,596
Max Volume, ft 3 =2,897
= 0.066
acre-ft
Comments
Required Detention Volume
Rainfall
Duration (T)
Qin=
∑C100*Area*I
Comments
RELEASE RATE OUT OF CHAMBER
Calculations by: ARS
Date: 10/3/2019
D:\Civilworx\CivilWorx Dropbox\CivilWorx\Projects\2022\C22026 - Bloom Multi Family\06_Design\Reports\Drainage\C22026 - Bloom WQ Chamber
Sizing.xlsm
VAULT ID
TOTAL
REQUIRED WQ
VOLUME (CF)
WQ
FLOW
(CFS)
CHAMBER TYPE
CHAMBER
RELEASE RATE
(CFS)
CHAMBER
VOLUME (CF)
INSTALLED CHAMBER
W/AGGREGATE (CF)
MIN. # OF
CHAMBERS
TOTAL
RELEASE
RATE (CFS)
REQUIRED
STORAGE
VOLUME BY FAA
METHOD (CF)
MIN # OF
CHAMBERS
STORAGE
PROVIDED
WITHIN THE
CHAMBERS (CF)
TOTAL
INSTALLED
SYSTEM
VOLUME (CF)
S1 14,709 9.60 SC-160 0.011 6.85 15 981 10.791 2,897 423 6719.85 14715
S2 14,709 9.60 SC-740 0.024 45.9 74.9 197 4.728 6,547 143 9042.3 14755.3
0
0
S5 14,709 9.60 SC-310 0.016 14.7 29.3 503 8.048 4,131 282 7394.1 14737.9
SC-160 0.011 6.85 15 0 0 0 0 0
CHAMBER DIMENSIONS SC-160 SC-310 SC-740
WIDTH [IN] 25 34 51
LENGTH [IN] 84.4 85.4 85.4
HEIGHT [IN] 12 16 30
FLOOR AREA [SF] 14.7 20.2 30.2
CHAMBER VOLUME [CF]6.9 14.7 45.9
CHAMBER/AGGREGATE VOLUME [CF]15 29.3 74.9
Chamber Configuration Summary
STORM TECH CHAMBER DATA
PROJECT Bloom Multi-Family
SWMM Catchment Parameter Woksheet
Enter Computed Use
Enter Enter Channel X Z K y W W
Basin Basin Area Flow Path SHAPE SHAPE SHAPE SHAPE FROM Rounded Average %
ID Acres L FACTOR FACTOR FACTOR FACTOR SHAPE Up By Slope %Imperv
(ft)FACTOR 25
1 1.850 377 0.56714 0.70 4.0 0.96354 363.3 375 2.8 85.00
2 1.323 406 0.34974 0.60 4.0 0.68801 279.3 300 3.0 86.00
3 1.957 540 0.29232 0.60 4.0 0.57937 312.9 325 3.7 84.00
4 1.397 300 0.67592 0.70 4.0 1.13154 339.5 350 3.2 82.00
5 1.030 300 0.49857 0.70 4.0 0.85485 256.5 275 3.4 75.00
6 0.363 170 0.54760 0.50 4.0 1.16598 198.2 200 3.5 51.00
7 1.685 350 0.59911 0.70 4.0 1.01347 354.7 375 2.7 92.00
8 2.446 350 0.86986 0.60 4.0 1.59486 558.2 575 11.2 23.00
OS-1 0.840 395 0.23449 0.80 4.0 0.36419 143.9 150 4.9 58.00
OS-2 0.449 355 0.15511 0.80 4.0 0.24337 86.4 100 2.8 41.00
OS-3 0.956 725 0.07922 0.80 4.0 0.12549 91.0 100 5.7 54.00
OS-4 0.852 350 0.30301 0.80 4.0 0.46646 163.3 175 5.1 68.00
OS-5 0.641 340 0.24170 0.80 4.0 0.37503 127.5 150 6.0 62.00
OS-6 0.709 730 0.05796 0.80 4.0 0.09206 67.2 75 3.1 42.00
OS-7 0.754 350 0.26800 0.80 4.0 0.41444 145.1 150 2.6 32.00
OS-8 0.469 292 0.23971 0.80 4.0 0.37204 108.6 125 1.8 69.00
OS-9 1.268 900 0.06821 0.80 4.0 0.10821 97.4 100 3.1 79.00
OS-10 0.118 340 0.04439 0.80 4.0 0.07064 24.0 25 2.5 31.00
EX-Site 15.830 1550 0.28702 0.60 4.0 0.56925 882.3 900 1.0 2.00
TOTAL - DEV 13.98
TOTAL - EX 1.85
OS-6-10 3.318
For Existing Conditions used Poor Grass Cover on Rough
For Developed Conditions used Average Grass Cover
PROJECT: Trevenna Subdivision
LOCATION: Windsor, CO
SWMM DESIGN STORM SEWER INLET CALIBRATION WORKSHEET
Curb Inlet - Type R Opening Opening Reduced Reduced SWMM Parameters
Using Orifice Equations Width Length Nominal Ao Reduction Ao Length H W
(UDFCD)(in)(in)(sqin)Factor (sqin)(in)Co (ft)(ft)
5' Type R Inlet 6 60 360 80 288 48 0.67 0.5 4
10' Type R Inlet 6 120 720 85 612 102 0.67 0.5 8.5
15' Type R Inlet 6 180 1080 90 972 162 0.67 0.5 13.5
20' Type R Inlet 6 240 1440 95 1368 228 0.67 0.5 19.0
Side Flow Orifice used noting SWMM/SSA use weir flow equation until H is exceeded.
Source: UDFCD January 2017 Edition
Source: Town of Windsor Criteria (July 2020)
1
Bloom Multi-Family - Detention Pond - (Below Spillway)
Elev Area (sf)Inc. Vol Cul. Vol Inc. Vol Cul. Vol Cul Vol (AF)
4,928.40 286 N/A N/A 0 N/A 0 0.000
4,928.60 1161 0.2 145 145 135 135 0.003
4,928.80 2416 0.2 358 502 350 485 0.011
4,929.00 4333 0.2 675 1177 666 1151 0.027
4,929.20 5836 0.2 1017 2194 1013 2164 0.050
4,929.40 7680 0.2 1352 3546 1347 3511 0.081
4,929.60 9877 0.2 1756 5301 1751 5262 0.121
4,929.80 12411 0.2 2229 7530 2224 7486 0.172
4,930.00 15070 0.2 2748 10278 2744 10230 0.235
4,930.20 16200 0.2 3127 13405 3126 13356 0.307
4,930.40 17402 0.2 3360 16766 3360 16716 0.384
4,930.60 18818 0.2 3622 20388 3621 20337 0.467
4,930.80 20570 0.2 3939 24326 3937 24274 0.558
4,931.00 22620 0.2 4319 28645 4317 28592 0.657
4,931.20 23830 0.2 4645 33290 4645 33236 0.764
4,931.40 25090 0.2 4892 38182 4891 38128 0.876
4,931.60 26404 0.2 5149 43332 5149 43277 0.994
4,931.80 27758 0.2 5416 48748 5416 48692 1.118
4,932.00 29082 0.2 5684 54432 5683 54376 1.249
4,932.20 30249 0.2 5933 60365 5933 60309 1.385
4,932.40 31368 0.2 6162 66527 6161 66470 1.527
4,932.60 32452 0.2 6382 72909 6382 72852 1.673
4,932.80 33538 0.2 6599 79508 6599 79450 1.825
4,933.00 34629 0.2 6817 86325 6816 86267 1.981
4,933.20 35725 0.2 7035 93360 7035 93302 2.143
4,933.40 36831 0.2 7256 100616 7255 100557 2.309
4,933.60 37946 0.2 7478 108093 7477 108035 2.481
4,933.80 39065 0.2 7701 115794 7701 115735 2.658
4,934.00 40196 0.2 7926 123721 7926 123661 2.840
4,934.20 41330 0.2 8153 131873 8152 131814 3.027
4,934.40 42474 0.2 8380 140254 8380 140194 3.219
4,934.60 43631 0.2 8610 148864 8610 148804 3.417
4,934.80 44801 0.2 8843 157707 8843 157647 3.620
4,935.00 45986 0.2 9079 166786 9078 166725 3.828
4,935.20 47190 0.2 9318 176103 9317 176043 4.042
4,935.40 48401 0.2 9559 185663 9559 185601 4.262
4,935.60 49605 0.2 9801 195463 9800 195402 4.487
4,935.80 50857 0.2 10046 205509 10046 205448 4.717
4,936.00 52269 0.2 10313 215822 10312 215760 4.954
4,936.20 53902 0.2 10617 226439 10617 226377 5.198
4,936.40 55793 0.2 10970 237409 10969 237346 5.449
4,936.60 57712 0.2 11351 248759 11350 248696 5.710
4,936.80 59747 0.2 11746 260505 11745 260441 5.980
4,937.00 61894 0.2 12164 272669 12164 272605 6.259
4,937.20 64224 0.2 12612 285281 12611 285216 6.548
4,937.40 66797 0.2 13102 298383 13101 298317 6.849
C-01
C-02
C-03
C-04
C-05
C-06
C-07
C-08
C-OS-1
C-OS-2
C-OS-3
C-OS-4
C-OS-5
C-OS-6
C-OS-7
C-OS-8
C-OS-9
EX-SITE
GT-A-1-A
GT-A-1-B
GT-A-1-C
GT-A-1-C-1
GT-A-1-D
GT-A-1-F
GT-A2-1-A
GT-A-B
GT-AR-A
GT-AR-B
GT-AR-C
GT-B-1-A
GT-B-1-B
GT-C-1-A
GT-C-1-B
GT-C-1-C
GT-C-1-D
GT-C-B
GT-INT-B
GT-INT-C
P-A-1
P-A-2
P-A2-1P-A2-2
P-A2-3
P-A2-4
P-A-3
P-A-4
P-A-5P-A-6 P-A-7
P-A-8
P-A-UD-1P-A-UD-2
P-B-1
P-C-A
P-C-B
P-C-C
P-C-D
P-UD-A
P-UD-B
P-Z-POND-OUT
SW-B-P
SW-CHASE
SDI A1-2
SDI B-1
SDI C-3
SDI-A-1-4
SDI-A-1-5
SDI-A3-1
SDI-C-1
SDI-C-3-1
J-SDI A1-2
J-SDI B-1
J-SDI C-3
J-SDI-A-1-4
J-SDI-A-1-5
J-SDI-A3-1
J-SDI-C-1
J-SDI-C-3-1
J-SDMH A1-1
J-SDMH A-1-3
J-SDMH A-2
J-SDMH A-2-1
J-SDMH A-2-2
J-SDMH A-3J-SDMH A-4
J-SDMH C-1
J-SDMH-CH-A-4-AJ-SDMH-CH-A-4-B
J-STMH-CH-A-2-1
RD-4-A
RD-4-B
RD-4-C
RD-4-D
RD-5-A
RD-5-B
RD-A-1-A
RD-A-1-BRD-A-1-D
RD-ANT-1-B
RD-ANT-1-C
RD-AR-1-A
RD-AR-1-B
RD-AR-1-C
RD-CHASE
RD-INLET-A-1-4
RD-INLET-A-1-5
RD-SDI A1-2
RD-SDI-A3-1
RD-SDI-B-1
RD-SDI-C-1
RD-SDI-C-3-1
RD-SDI-C-3A
OUT-EAST
OUT-EX-SITE
OUT-N
OUT-POND
OUT-SE
OUT-SW
BLOOM-POND
Gage1
Subcatch
Area
25.00
50.00
75.00
100.00
ac
Node
Max Depth
1.00
2.00
3.00
4.00
ft
Link
Max Flow
5.00
10.00
15.00
20.00
CFS
01/22/2024 00:05:00
BLOOM MULTI-FAMILY DEVELOPMENT - 100-Year
EPA SWMM 5.2.4 Page 1
EPA STORM WATER MANAGEMENT MODEL - VERSION 5.2 (Build 5.2.4)
------------------------------------------------------------
BLOOM MULTI-FAMILY DEVELOPMENT
EPA SWMM Version 5.2.4 Last Updated 1/22/2024
WARNING 04: minimum elevation drop used for Conduit P-A2-4
WARNING 04: minimum elevation drop used for Conduit P-A-UD-2
WARNING 04: minimum elevation drop used for Conduit P-UD-B
*************
Element Count
*************
Number of rain gages ...... 1
Number of subcatchments ... 18
Number of nodes ........... 49
Number of links ........... 52
Number of pollutants ...... 0
Number of land uses ....... 0
****************
Raingage Summary
****************
Data Recording
Name Data Source Type Interval
------------------------------------------------------------------------
Gage1 100year INTENSITY 5 min.
********************
Subcatchment Summary
********************
Name Area Width %Imperv %Slope Rain Gage Outlet
-----------------------------------------------------------------------------------------------------------
C-01 2.07 375.00 79.00 2.8000 Gage1 RD-A-1-A
C-02 1.56 300.00 82.00 3.7000 Gage1 RD-4-C
C-03 1.95 325.00 82.00 3.7000 Gage1 RD-SDI-C-3-1
C-04 1.40 350.00 84.00 3.2000 Gage1 RD-A-1-B
C-05 1.03 275.00 76.00 3.4000 Gage1 RD-5-A
C-06 0.32 200.00 47.00 3.5000 Gage1 RD-CHASE
BLOOM MULTI-FAMILY DEVELOPMENT - 100-Year
EPA SWMM 5.2.4 Page 1
C-07 1.64 375.00 90.00 2.7000 Gage1 RD-4-A
C-08 2.38 575.00 21.00 10.0000 Gage1 BLOOM-POND
C-OS-1 0.71 150.00 62.00 4.9000 Gage1 RD-AR-1-A
C-OS-2 0.23 500.00 12.00 2.0000 Gage1 OUT-N
C-OS-3 1.00 100.00 52.00 5.7000 Gage1 RD-ANT-1-B
C-OS-4 0.85 175.00 69.00 5.1000 Gage1 RD-AR-1-B
C-OS-5 0.74 150.00 58.00 6.0000 Gage1 RD-AR-1-C
C-OS-6 0.71 60.00 79.00 1.5000 Gage1 RD-ANT-1-B
C-OS-7 0.75 150.00 77.00 1.5000 Gage1 OUT-SE
C-OS-8 0.47 60.00 77.00 1.5000 Gage1 BLOOM-POND
C-OS-9 1.27 150.00 78.00 1.0000 Gage1 RD-AR-1-B
EX-SITE 15.83 550.00 2.00 1.0000 Gage1 OUT-EX-SITE
************
Node Summary
************
Invert Max. Ponded External
Name Type Elev. Depth Area Inflow
-------------------------------------------------------------------------------
J-SDI A1-2 JUNCTION 4933.07 12.00 0.0
J-SDI B-1 JUNCTION 4933.43 12.00 0.0
J-SDI C-3 JUNCTION 4938.31 12.00 0.0
J-SDI-A-1-4 JUNCTION 4935.43 12.00 0.0
J-SDI-A-1-5 JUNCTION 4938.42 12.00 0.0
J-SDI-A3-1 JUNCTION 4933.06 12.00 0.0
J-SDI-C-1 JUNCTION 4936.08 12.00 0.0
J-SDI-C-3-1 JUNCTION 4936.00 12.00 0.0
J-SDMH A1-1 JUNCTION 4932.45 12.00 0.0
J-SDMH A-1-3 JUNCTION 4934.86 12.00 0.0
J-SDMH A-2 JUNCTION 4931.43 12.00 0.0
J-SDMH A-2-1 JUNCTION 4932.39 12.00 0.0
J-SDMH A-2-2 JUNCTION 4932.75 12.00 0.0
J-SDMH A-3 JUNCTION 4932.18 12.00 0.0
J-SDMH A-4 JUNCTION 4932.40 12.00 0.0
J-SDMH C-1 JUNCTION 4935.83 12.00 0.0
J-SDMH-CH-A-4-A JUNCTION 4932.39 12.00 0.0
J-SDMH-CH-A-4-B JUNCTION 4932.39 12.00 0.0
J-STMH-CH-A-2-1 JUNCTION 4932.39 12.00 0.0
RD-4-A JUNCTION 4937.79 12.00 0.0
RD-4-B JUNCTION 4941.81 12.00 0.0
BLOOM MULTI-FAMILY DEVELOPMENT - 100-Year
EPA SWMM 5.2.4 Page 2
RD-4-C JUNCTION 4943.10 12.00 0.0
RD-4-D JUNCTION 4939.96 12.00 0.0
RD-5-A JUNCTION 4938.99 12.00 0.0
RD-5-B JUNCTION 4938.34 12.00 0.0
RD-A-1-A JUNCTION 4943.02 12.00 0.0
RD-A-1-B JUNCTION 4940.42 12.00 0.0
RD-A-1-D JUNCTION 4940.18 12.00 0.0
RD-ANT-1-B JUNCTION 4943.00 12.00 0.0
RD-ANT-1-C JUNCTION 4941.00 12.00 0.0
RD-AR-1-A JUNCTION 4941.00 12.00 0.0
RD-AR-1-B JUNCTION 4938.00 12.00 0.0
RD-AR-1-C JUNCTION 4936.00 12.00 0.0
RD-CHASE JUNCTION 4937.22 6.00 50.0
RD-INLET-A-1-4 JUNCTION 4941.14 12.00 0.0
RD-INLET-A-1-5 JUNCTION 4942.56 12.00 0.0
RD-SDI A1-2 JUNCTION 4939.00 12.00 0.0
RD-SDI-A3-1 JUNCTION 4937.28 12.00 0.0
RD-SDI-B-1 JUNCTION 4938.14 12.00 0.0
RD-SDI-C-1 JUNCTION 4939.11 12.00 0.0
RD-SDI-C-3-1 JUNCTION 4940.43 12.00 0.0
RD-SDI-C-3A JUNCTION 4942.08 12.00 0.0
OUT-EAST OUTFALL 4940.00 1.00 0.0
OUT-EX-SITE OUTFALL 4936.00 0.00 0.0
OUT-N OUTFALL 4946.00 0.00 0.0
OUT-POND OUTFALL 4927.00 1.50 0.0
OUT-SE OUTFALL 4936.00 0.00 0.0
OUT-SW OUTFALL 4935.90 1.00 0.0
BLOOM-POND STORAGE 4928.40 11.00 0.0
************
Link Summary
************
Name From Node To Node Type Length %Slope Roughness
---------------------------------------------------------------------------------------------
GT-A-1-A RD-A-1-A RD-INLET-A-1-5 CONDUIT 92.8 0.5002 0.0160
GT-A-1-B RD-4-B RD-INLET-A-1-4 CONDUIT 117.0 0.5745 0.0160
GT-A-1-C RD-INLET-A-1-5 RD-4-B CONDUIT 124.9 0.6036 0.0160
GT-A-1-C-1 RD-INLET-A-1-4 RD-A-1-B CONDUIT 71.1 1.0006 0.0160
GT-A-1-D RD-A-1-B RD-A-1-D CONDUIT 49.5 0.5010 0.0160
GT-A-1-F RD-A-1-D RD-SDI A1-2 CONDUIT 161.4 0.7278 0.0160
BLOOM MULTI-FAMILY DEVELOPMENT - 100-Year
EPA SWMM 5.2.4 Page 3
GT-A2-1-A RD-4-A RD-SDI-A3-1 CONDUIT 120.9 0.4203 0.0160
GT-A-B RD-SDI A1-2 RD-5-A CONDUIT 174.7 0.1958 0.0160
GT-AR-A RD-AR-1-A RD-AR-1-B CONDUIT 317.9 0.9437 0.0160
GT-AR-B RD-AR-1-B RD-AR-1-C CONDUIT 680.3 0.2940 0.0160
GT-AR-C RD-AR-1-C OUT-SW CONDUIT 47.4 0.2109 0.0160
GT-B-1-A RD-5-A RD-5-B CONDUIT 77.3 0.8504 0.0160
GT-B-1-B RD-5-B RD-SDI-B-1 CONDUIT 48.3 0.3974 0.0160
GT-C-1-A RD-4-C RD-SDI-C-3A CONDUIT 115.2 0.8846 0.0160
GT-C-1-B RD-SDI-C-3A RD-SDI-C-3-1 CONDUIT 229.4 0.7190 0.0160
GT-C-1-C RD-SDI-C-3-1 RD-4-D CONDUIT 37.1 1.2491 0.0160
GT-C-1-D RD-4-D RD-SDI-C-1 CONDUIT 69.0 1.2398 0.0160
GT-C-B RD-SDI-C-1 RD-5-A CONDUIT 129.8 0.3450 0.0160
GT-INT-B RD-ANT-1-B RD-ANT-1-C CONDUIT 370.9 0.5393 0.0160
GT-INT-C RD-ANT-1-C OUT-EAST CONDUIT 64.4 1.5532 0.0160
P-A-1 J-SDI-A-1-5 J-SDI-A-1-4 CONDUIT 239.4 1.2492 0.0130
P-A-2 J-SDI-A-1-4 J-SDMH A-1-3 CONDUIT 46.0 1.2403 0.0130
P-A2-1 J-SDI-A3-1 J-SDMH A-2-2 CONDUIT 31.3 0.9914 0.0130
P-A2-2 J-SDMH A-2-2 J-SDMH A-2-1 CONDUIT 20.2 1.7789 0.0130
P-A2-3 J-SDMH A-2-1 J-SDMH A-3 CONDUIT 94.1 2.8817 0.0130
P-A2-4 J-STMH-CH-A-2-1 J-SDMH A-2-1 CONDUIT 81.7 0.0012 0.0130
P-A-3 J-SDMH A-1-3 J-SDI A1-2 CONDUIT 236.2 0.7567 0.0130
P-A-4 J-SDI A1-2 J-SDMH A1-1 CONDUIT 84.8 0.7349 0.0130
P-A-5 J-SDMH A-4 J-SDMH A1-1 CONDUIT 10.2 -0.4907 0.0130
P-A-6 J-SDMH A-4 J-SDMH A-3 CONDUIT 44.3 5.0210 0.0130
P-A-7 J-SDMH A-3 J-SDMH A-2 CONDUIT 149.8 0.5040 0.0130
P-A-8 J-SDMH A-2 BLOOM-POND CONDUIT 52.1 0.5007 0.0130
P-A-UD-1 J-SDMH-CH-A-4-A J-SDMH A-4 CONDUIT 8.7 23.6111 0.0130
P-A-UD-2 J-SDMH-CH-A-4-B J-SDMH-CH-A-4-A CONDUIT 39.1 0.0026 0.0130
P-B-1 J-SDI B-1 J-SDMH A1-1 CONDUIT 195.0 0.5025 0.0130
P-C-A J-SDI C-3 J-SDI-C-3-1 CONDUIT 231.0 1.0002 0.0130
P-C-B J-SDI-C-3-1 J-SDMH C-1 CONDUIT 32.6 0.5213 0.0130
P-C-C J-SDI-C-1 J-SDMH C-1 CONDUIT 98.3 0.2544 0.0130
P-C-D J-SDMH C-1 J-SDMH A-1-3 CONDUIT 195.6 0.4959 0.0130
P-UD-A J-SDMH-CH-A-4-B J-SDMH A-3 CONDUIT 10.0 2.1005 0.0160
P-UD-B J-STMH-CH-A-2-1 J-SDMH-CH-A-4-B CONDUIT 78.0 0.0013 0.0240
P-Z-POND-OUT BLOOM-POND OUT-POND CONDUIT 100.0 1.4001 0.0120
SW-B-P RD-SDI-B-1 BLOOM-POND CONDUIT 20.0 24.4114 0.0350
SW-CHASE RD-CHASE BLOOM-POND CONDUIT 20.0 14.2423 0.0350
SDI A1-2 RD-SDI A1-2 J-SDI A1-2 ORIFICE
SDI B-1 RD-SDI-B-1 J-SDI B-1 ORIFICE
SDI C-3 RD-SDI-C-3A J-SDI C-3 ORIFICE
BLOOM MULTI-FAMILY DEVELOPMENT - 100-Year
EPA SWMM 5.2.4 Page 4
SDI-A-1-4 RD-INLET-A-1-4 J-SDI-A-1-4 ORIFICE
SDI-A-1-5 RD-INLET-A-1-5 J-SDI-A-1-5 ORIFICE
SDI-A3-1 RD-SDI-A3-1 J-SDI-A3-1 ORIFICE
SDI-C-1 RD-SDI-C-1 J-SDI-C-1 ORIFICE
SDI-C-3-1 RD-SDI-C-3-1 J-SDI-C-3-1 ORIFICE
*********************
Cross Section Summary
*********************
Full Full Hyd. Max. No. of Full
Conduit Shape Depth Area Rad. Width Barrels Flow
---------------------------------------------------------------------------------------
GT-A-1-A TRAPEZOIDAL 1.50 112.80 0.75 150.20 1 612.10
GT-A-1-B TRAPEZOIDAL 1.50 112.80 0.75 150.20 1 655.98
GT-A-1-C TRAPEZOIDAL 1.50 112.80 0.75 150.20 1 672.38
GT-A-1-C-1 TRAPEZOIDAL 1.50 112.80 0.75 150.20 1 865.72
GT-A-1-D TRAPEZOIDAL 1.50 112.80 0.75 150.20 1 612.59
GT-A-1-F TRAPEZOIDAL 1.50 112.80 0.75 150.20 1 738.33
GT-A2-1-A TRAPEZOIDAL 1.50 136.50 0.75 181.00 1 680.88
GT-A-B TRAPEZOIDAL 2.00 200.40 1.00 200.20 1 823.94
GT-AR-A TRAPEZOIDAL 1.00 25.60 0.50 51.10 1 144.89
GT-AR-B TRAPEZOIDAL 1.00 25.60 0.50 51.10 1 80.87
GT-AR-C TRAPEZOIDAL 1.00 25.60 0.50 51.10 1 68.50
GT-B-1-A TRAPEZOIDAL 1.50 112.80 0.75 150.20 1 798.10
GT-B-1-B TRAPEZOIDAL 1.50 57.68 0.75 76.70 1 277.68
GT-C-1-A TRAPEZOIDAL 1.50 112.80 0.75 150.20 1 813.98
GT-C-1-B TRAPEZOIDAL 1.50 112.80 0.75 150.20 1 733.84
GT-C-1-C TRAPEZOIDAL 1.50 112.80 0.75 150.20 1 967.25
GT-C-1-D TRAPEZOIDAL 1.50 112.80 0.75 150.20 1 963.64
GT-C-B TRAPEZOIDAL 1.00 50.10 0.50 100.10 1 172.27
GT-INT-B TRAPEZOIDAL 1.00 25.60 0.50 51.10 1 109.53
GT-INT-C TRAPEZOIDAL 1.00 25.60 0.50 51.10 1 185.88
P-A-1 CIRCULAR 1.50 1.77 0.38 1.50 1 11.74
P-A-2 CIRCULAR 1.50 1.77 0.38 1.50 1 11.70
P-A2-1 CIRCULAR 1.50 1.77 0.38 1.50 1 10.46
P-A2-2 CIRCULAR 1.50 1.77 0.38 1.50 1 14.01
P-A2-3 CIRCULAR 1.50 1.77 0.38 1.50 1 17.83
P-A2-4 CIRCULAR 1.50 1.77 0.38 1.50 1 0.37
P-A-3 CIRCULAR 1.50 1.77 0.38 1.50 1 9.14
P-A-4 CIRCULAR 1.50 1.77 0.38 1.50 1 9.01
BLOOM MULTI-FAMILY DEVELOPMENT - 100-Year
EPA SWMM 5.2.4 Page 5
P-A-5 CIRCULAR 1.50 1.77 0.38 1.50 1 7.36
P-A-6 CIRCULAR 2.00 3.14 0.50 2.00 1 50.69
P-A-7 CIRCULAR 2.00 3.14 0.50 2.00 1 16.06
P-A-8 CIRCULAR 2.00 3.14 0.50 2.00 1 16.01
P-A-UD-1 CIRCULAR 1.50 1.77 0.38 1.50 1 51.04
P-A-UD-2 CIRCULAR 1.50 1.77 0.38 1.50 1 0.53
P-B-1 CIRCULAR 1.50 1.77 0.38 1.50 1 7.45
P-C-A CIRCULAR 1.50 1.77 0.38 1.50 1 10.51
P-C-B CIRCULAR 1.50 1.77 0.38 1.50 1 7.58
P-C-C CIRCULAR 1.50 1.77 0.38 1.50 1 5.30
P-C-D CIRCULAR 1.50 1.77 0.38 1.50 1 7.40
P-UD-A CIRCULAR 0.50 0.20 0.12 0.50 1 0.66
P-UD-B CIRCULAR 2.50 4.91 0.62 2.50 13 0.80
P-Z-POND-OUT CIRCULAR 1.50 1.77 0.38 1.50 1 13.47
SW-B-P TRAPEZOIDAL 2.00 230.00 1.07 215.00 1 5046.00
SW-CHASE TRAPEZOIDAL 2.00 201.00 1.00 200.50 1 3225.52
****************
Analysis Options
****************
Flow Units ............... CFS
Process Models:
Rainfall/Runoff ........ YES
RDII ................... NO
Snowmelt ............... NO
Groundwater ............ NO
Flow Routing ........... YES
Ponding Allowed ........ YES
Water Quality .......... NO
Infiltration Method ...... HORTON
Flow Routing Method ...... DYNWAVE
Surcharge Method ......... SLOT
Starting Date ............ 01/22/2024 00:00:00
Ending Date .............. 01/22/2024 12:00:00
Antecedent Dry Days ...... 0.0
Report Time Step ......... 00:05:00
Wet Time Step ............ 00:05:00
Dry Time Step ............ 01:00:00
Routing Time Step ........ 2.00 sec
Variable Time Step ....... YES
BLOOM MULTI-FAMILY DEVELOPMENT - 100-Year
EPA SWMM 5.2.4 Page 6
Maximum Trials ........... 20
Number of Threads ........ 1
Head Tolerance ........... 0.005000 ft
*********************
Control Actions Taken
*********************
************************** Volume Depth
Runoff Quantity Continuity acre-feet inches
************************** --------- -------
Total Precipitation ...... 11.420 3.927
Evaporation Loss ......... 0.000 0.000
Infiltration Loss ........ 3.707 1.275
Surface Runoff ........... 7.652 2.631
Final Storage ............ 0.113 0.039
Continuity Error (%) ..... -0.449
************************** Volume Volume
Flow Routing Continuity acre-feet 10^6 gal
************************** --------- ---------
Dry Weather Inflow ....... 0.000 0.000
Wet Weather Inflow ....... 7.652 2.493
Groundwater Inflow ....... 0.000 0.000
RDII Inflow .............. 0.000 0.000
External Inflow .......... 0.000 0.000
External Outflow ......... 4.922 1.604
Flooding Loss ............ 0.000 0.000
Evaporation Loss ......... 0.000 0.000
Exfiltration Loss ........ 0.006 0.002
Initial Stored Volume .... 0.000 0.000
Final Stored Volume ...... 2.722 0.887
Continuity Error (%) ..... 0.032
*************************
Highest Continuity Errors
*************************
BLOOM MULTI-FAMILY DEVELOPMENT - 100-Year
EPA SWMM 5.2.4 Page 7
Node J-SDMH-CH-A-4-B (2.66%)
***************************
Time-Step Critical Elements
***************************
Link P-A-UD-1 (37.66%)
********************************
Highest Flow Instability Indexes
********************************
Link P-A-5 (29)
Link P-A-UD-2 (20)
Link P-A-UD-1 (18)
Link P-A-6 (13)
Link P-UD-B (11)
*********************************
Most Frequent Nonconverging Nodes
*********************************
Node OUT-EAST (3.10%)
Node OUT-EX-SITE (3.10%)
Node OUT-N (3.10%)
Node OUT-POND (3.10%)
Node OUT-SE (3.10%)
*************************
Routing Time Step Summary
*************************
Minimum Time Step : 0.50 sec
Average Time Step : 1.70 sec
Maximum Time Step : 2.00 sec
% of Time in Steady State : 0.00
Average Iterations per Step : 2.85
% of Steps Not Converging : 3.10
Time Step Frequencies :
2.000 - 1.516 sec : 75.83 %
1.516 - 1.149 sec : 9.89 %
BLOOM MULTI-FAMILY DEVELOPMENT - 100-Year
EPA SWMM 5.2.4 Page 8
1.149 - 0.871 sec : 2.51 %
0.871 - 0.660 sec : 5.71 %
0.660 - 0.500 sec : 6.07 %
***************************
Subcatchment Runoff Summary
***************************
------------------------------------------------------------------------------------------------------------------------------
Total Total Total Total Imperv Perv Total Total Peak Runoff
Precip Runon Evap Infil Runoff Runoff Runoff Runoff Runoff Coeff
Subcatchment in in in in in in in 10^6 gal CFS
------------------------------------------------------------------------------------------------------------------------------
C-01 3.93 0.00 0.00 0.29 3.58 0.54 3.58 0.20 14.48 0.913
C-02 3.93 0.00 0.00 0.25 3.63 0.47 3.63 0.15 11.68 0.924
C-03 3.93 0.00 0.00 0.25 3.63 0.46 3.63 0.19 14.10 0.923
C-04 3.93 0.00 0.00 0.22 3.66 0.42 3.66 0.14 10.99 0.932
C-05 3.93 0.00 0.00 0.33 3.56 0.62 3.56 0.10 7.86 0.906
C-06 3.93 0.00 0.00 0.73 3.19 1.38 3.19 0.03 2.14 0.812
C-07 3.93 0.00 0.00 0.13 3.73 0.26 3.73 0.17 12.78 0.950
C-08 3.93 0.00 0.00 1.16 0.81 2.77 2.77 0.18 14.85 0.706
C-OS-1 3.93 0.00 0.00 0.53 3.37 0.97 3.37 0.06 4.81 0.857
C-OS-2 3.93 0.00 0.00 1.19 2.77 2.31 2.77 0.02 1.87 0.705
C-OS-3 3.93 0.00 0.00 0.72 3.18 1.17 3.18 0.09 5.16 0.809
C-OS-4 3.93 0.00 0.00 0.43 3.46 0.80 3.46 0.08 6.10 0.881
C-OS-5 3.93 0.00 0.00 0.59 3.31 1.07 3.31 0.07 4.91 0.843
C-OS-6 3.93 0.00 0.00 0.32 3.54 0.51 3.54 0.07 3.27 0.902
C-OS-7 3.93 0.00 0.00 0.33 3.55 0.58 3.55 0.07 4.87 0.904
C-OS-8 3.93 0.00 0.00 0.34 3.53 0.57 3.53 0.04 2.59 0.899
C-OS-9 3.93 0.00 0.00 0.33 3.53 0.54 3.53 0.12 6.21 0.900
EX-SITE 3.93 0.00 0.00 2.27 0.08 1.58 1.66 0.71 16.88 0.423
******************
Node Depth Summary
******************
---------------------------------------------------------------------------------
Average Maximum Maximum Time of Max Reported
Depth Depth HGL Occurrence Max Depth
BLOOM MULTI-FAMILY DEVELOPMENT - 100-Year
EPA SWMM 5.2.4 Page 9
Node Type Feet Feet Feet days hr:min Feet
---------------------------------------------------------------------------------
J-SDI A1-2 JUNCTION 1.80 6.61 4939.68 0 00:46 6.60
J-SDI B-1 JUNCTION 1.33 5.41 4938.84 0 00:44 5.40
J-SDI C-3 JUNCTION 0.18 2.45 4940.76 0 00:41 2.41
J-SDI-A-1-4 JUNCTION 0.43 5.26 4940.69 0 00:41 5.17
J-SDI-A-1-5 JUNCTION 0.16 2.59 4941.01 0 00:41 2.50
J-SDI-A3-1 JUNCTION 1.24 4.92 4937.98 0 00:52 4.89
J-SDI-C-1 JUNCTION 0.39 3.90 4939.98 0 00:42 3.88
J-SDI-C-3-1 JUNCTION 0.44 4.56 4940.56 0 00:42 4.52
J-SDMH A1-1 JUNCTION 2.26 5.98 4938.43 0 00:45 5.97
J-SDMH A-1-3 JUNCTION 0.56 5.52 4940.38 0 00:41 5.47
J-SDMH A-2 JUNCTION 2.51 3.21 4934.64 0 00:45 3.21
J-SDMH A-2-1 JUNCTION 1.86 4.91 4937.30 0 00:47 4.87
J-SDMH A-2-2 JUNCTION 1.52 4.87 4937.62 0 00:47 4.85
J-SDMH A-3 JUNCTION 1.93 4.55 4936.73 0 00:47 4.54
J-SDMH A-4 JUNCTION 2.18 4.84 4937.24 0 00:45 4.83
J-SDMH C-1 JUNCTION 0.46 4.54 4940.37 0 00:42 4.51
J-SDMH-CH-A-4-A JUNCTION 1.85 4.86 4937.25 0 00:45 4.85
J-SDMH-CH-A-4-B JUNCTION 1.84 5.48 4937.87 0 00:57 5.02
J-STMH-CH-A-2-1 JUNCTION 1.84 5.21 4937.60 0 00:51 4.94
RD-4-A JUNCTION 0.06 0.33 4938.12 0 00:40 0.33
RD-4-B JUNCTION 0.04 0.33 4942.14 0 00:41 0.31
RD-4-C JUNCTION 0.05 0.31 4943.41 0 00:40 0.31
RD-4-D JUNCTION 0.04 0.34 4940.31 0 00:41 0.32
RD-5-A JUNCTION 0.05 0.49 4939.48 0 00:44 0.48
RD-5-B JUNCTION 0.08 0.79 4939.13 0 00:44 0.79
RD-A-1-A JUNCTION 0.06 0.38 4943.41 0 00:40 0.38
RD-A-1-B JUNCTION 0.06 0.42 4940.84 0 00:41 0.40
RD-A-1-D JUNCTION 0.05 0.37 4940.54 0 00:42 0.35
RD-ANT-1-B JUNCTION 0.08 0.39 4943.39 0 00:41 0.39
RD-ANT-1-C JUNCTION 0.06 0.32 4941.32 0 00:43 0.32
RD-AR-1-A JUNCTION 0.04 0.27 4941.27 0 00:41 0.27
RD-AR-1-B JUNCTION 0.10 0.53 4938.53 0 00:44 0.53
RD-AR-1-C JUNCTION 0.12 0.65 4936.65 0 00:46 0.64
RD-CHASE JUNCTION 0.01 0.12 4937.34 0 00:40 0.12
RD-INLET-A-1-4 JUNCTION 0.03 0.25 4941.39 0 00:42 0.24
RD-INLET-A-1-5 JUNCTION 0.04 0.32 4942.88 0 00:40 0.31
RD-SDI A1-2 JUNCTION 0.05 0.72 4939.72 0 00:45 0.72
RD-SDI-A3-1 JUNCTION 0.05 0.82 4938.10 0 00:47 0.81
RD-SDI-B-1 JUNCTION 0.05 0.72 4938.87 0 00:44 0.72
BLOOM MULTI-FAMILY DEVELOPMENT - 100-Year
EPA SWMM 5.2.4 Page 10
RD-SDI-C-1 JUNCTION 0.06 0.82 4939.92 0 00:42 0.80
RD-SDI-C-3-1 JUNCTION 0.04 0.37 4940.79 0 00:41 0.35
RD-SDI-C-3A JUNCTION 0.03 0.28 4942.35 0 00:41 0.27
OUT-EAST OUTFALL 0.06 0.31 4940.31 0 00:43 0.31
OUT-EX-SITE OUTFALL 0.00 0.00 4936.00 0 00:00 0.00
OUT-N OUTFALL 0.00 0.00 4946.00 0 00:00 0.00
OUT-POND OUTFALL 0.27 0.28 4927.28 0 00:21 0.28
OUT-SE OUTFALL 0.00 0.00 4936.00 0 00:00 0.00
OUT-SW OUTFALL 0.12 0.60 4936.50 0 00:46 0.60
BLOOM-POND STORAGE 5.20 5.89 4934.29 0 02:42 5.89
*******************
Node Inflow Summary
*******************
-------------------------------------------------------------------------------------------------
Maximum Maximum Lateral Total Flow
Lateral Total Time of Max Inflow Inflow Balance
Inflow Inflow Occurrence Volume Volume Error
Node Type CFS CFS days hr:min 10^6 gal 10^6 gal Percent
-------------------------------------------------------------------------------------------------
J-SDI A1-2 JUNCTION 0.00 12.64 0 00:36 0 0.438 0.483
J-SDI B-1 JUNCTION 0.00 8.71 0 00:37 0 0.127 0.096
J-SDI C-3 JUNCTION 0.00 2.90 0 00:41 0 0.0605 -0.002
J-SDI-A-1-4 JUNCTION 0.00 6.04 0 00:41 0 0.123 -0.012
J-SDI-A-1-5 JUNCTION 0.00 3.58 0 00:40 0 0.0766 0.021
J-SDI-A3-1 JUNCTION 0.00 8.11 0 00:40 0 0.167 -0.117
J-SDI-C-1 JUNCTION 0.00 5.43 0 00:42 0 0.114 0.048
J-SDI-C-3-1 JUNCTION 0.00 5.77 0 00:38 0 0.139 0.004
J-SDMH A1-1 JUNCTION 0.00 16.65 0 00:35 0 0.569 0.000
J-SDMH A-1-3 JUNCTION 0.00 7.54 0 01:19 0 0.273 -0.011
J-SDMH A-2 JUNCTION 0.00 21.83 0 00:46 0 0.694 0.462
J-SDMH A-2-1 JUNCTION 0.00 7.37 0 00:52 0 0.179 0.316
J-SDMH A-2-2 JUNCTION 0.00 7.39 0 00:52 0 0.169 0.122
J-SDMH A-3 JUNCTION 0.00 21.99 0 00:52 0 0.698 0.336
J-SDMH A-4 JUNCTION 0.00 16.44 0 00:35 0 0.583 0.205
J-SDMH C-1 JUNCTION 0.00 5.89 0 01:20 0 0.201 -0.002
J-SDMH-CH-A-4-A JUNCTION 0.00 4.24 0 00:34 0 0.0774 -0.431
J-SDMH-CH-A-4-B JUNCTION 0.00 28.45 0 00:52 0 0.182 2.731
J-STMH-CH-A-2-1 JUNCTION 0.00 24.69 0 00:54 0 0.153 9.850
BLOOM MULTI-FAMILY DEVELOPMENT - 100-Year
EPA SWMM 5.2.4 Page 11
RD-4-A JUNCTION 12.78 12.78 0 00:40 0.166 0.166 -0.522
RD-4-B JUNCTION 0.00 10.58 0 00:41 0 0.125 0.049
RD-4-C JUNCTION 11.68 11.68 0 00:40 0.154 0.154 -0.046
RD-4-D JUNCTION 0.00 19.24 0 00:41 0 0.208 -0.119
RD-5-A JUNCTION 7.86 40.31 0 00:43 0.0993 0.353 -0.125
RD-5-B JUNCTION 0.00 39.91 0 00:44 0 0.353 0.009
RD-A-1-A JUNCTION 14.48 14.48 0 00:40 0.202 0.202 -0.019
RD-A-1-B JUNCTION 10.99 17.45 0 00:41 0.139 0.218 -0.057
RD-A-1-D JUNCTION 0.00 17.42 0 00:41 0 0.218 -0.316
RD-ANT-1-B JUNCTION 8.43 8.43 0 00:40 0.154 0.154 -0.120
RD-ANT-1-C JUNCTION 0.00 8.23 0 00:42 0 0.154 0.131
RD-AR-1-A JUNCTION 4.81 4.81 0 00:40 0.0645 0.0645 -0.624
RD-AR-1-B JUNCTION 12.31 16.64 0 00:40 0.201 0.266 -0.174
RD-AR-1-C JUNCTION 4.91 19.03 0 00:43 0.0666 0.333 0.287
RD-CHASE JUNCTION 2.14 2.14 0 00:40 0.0275 0.0275 -0.006
RD-INLET-A-1-4 JUNCTION 0.00 10.40 0 00:42 0 0.125 0.114
RD-INLET-A-1-5 JUNCTION 0.00 14.36 0 00:40 0 0.202 -0.031
RD-SDI A1-2 JUNCTION 0.00 17.31 0 00:42 0 0.218 0.552
RD-SDI-A3-1 JUNCTION 0.00 12.46 0 00:40 0 0.167 0.545
RD-SDI-B-1 JUNCTION 0.00 39.84 0 00:44 0 0.353 0.041
RD-SDI-C-1 JUNCTION 0.00 24.64 0 00:41 0 0.26 0.107
RD-SDI-C-3-1 JUNCTION 14.10 21.73 0 00:40 0.192 0.286 -0.010
RD-SDI-C-3A JUNCTION 0.00 11.57 0 00:40 0 0.154 0.064
OUT-EAST OUTFALL 0.00 8.13 0 00:43 0 0.154 0.000
OUT-EX-SITE OUTFALL 16.88 16.88 0 00:50 0.713 0.713 0.000
OUT-N OUTFALL 1.87 1.87 0 00:45 0.017 0.017 0.000
OUT-POND OUTFALL 0.00 1.00 0 00:21 0 0.315 0.000
OUT-SE OUTFALL 4.87 4.87 0 00:40 0.0725 0.0725 0.000
OUT-SW OUTFALL 0.00 17.96 0 00:46 0 0.332 0.000
BLOOM-POND STORAGE 17.44 74.78 0 00:44 0.224 1.17 0.127
**********************
Node Surcharge Summary
**********************
Surcharging occurs when water rises above the top of the highest conduit.
---------------------------------------------------------------------
Max. Height Min. Depth
Hours Above Crown Below Rim
Node Type Surcharged Feet Feet
BLOOM MULTI-FAMILY DEVELOPMENT - 100-Year
EPA SWMM 5.2.4 Page 12
---------------------------------------------------------------------
J-SDI A1-2 JUNCTION 2.27 5.109 5.391
J-SDI B-1 JUNCTION 1.81 3.909 6.591
J-SDI C-3 JUNCTION 0.51 0.955 9.545
J-SDI-A-1-4 JUNCTION 1.02 3.764 6.736
J-SDI-A-1-5 JUNCTION 0.41 1.090 9.410
J-SDI-A3-1 JUNCTION 2.10 3.419 7.081
J-SDI-C-1 JUNCTION 0.98 2.402 8.098
J-SDI-C-3-1 JUNCTION 0.99 3.056 7.444
J-SDMH A1-1 JUNCTION 11.65 4.482 6.018
J-SDMH A-1-3 JUNCTION 1.19 4.022 6.478
J-SDMH A-2 JUNCTION 11.41 1.214 8.786
J-SDMH A-2-1 JUNCTION 0.50 0.906 7.094
J-SDMH A-2-2 JUNCTION 3.58 3.370 7.130
J-SDMH A-3 JUNCTION 4.17 2.551 7.449
J-SDMH A-4 JUNCTION 0.52 0.841 7.159
J-SDMH C-1 JUNCTION 1.00 3.041 7.459
J-SDMH-CH-A-4-A JUNCTION 0.62 1.359 7.141
J-SDMH-CH-A-4-B JUNCTION 1.26 2.982 6.518
J-STMH-CH-A-2-1 JUNCTION 1.26 2.711 6.789
*********************
Node Flooding Summary
*********************
No nodes were flooded.
**********************
Storage Volume Summary
**********************
------------------------------------------------------------------------------------------------
Average Avg Evap Exfil Maximum Max Time of Max Maximum
Volume Pcnt Pcnt Pcnt Volume Pcnt Occurrence Outflow
Storage Unit 1000 ft³ Full Loss Loss 1000 ft³ Full days hr:min CFS
------------------------------------------------------------------------------------------------
BLOOM-POND 119.910 27.5 0.0 0.0 143.603 32.9 0 02:42 1.09
BLOOM MULTI-FAMILY DEVELOPMENT - 100-Year
EPA SWMM 5.2.4 Page 13
***********************
Outfall Loading Summary
***********************
-----------------------------------------------------------
Flow Avg Max Total
Freq Flow Flow Volume
Outfall Node Pcnt CFS CFS 10^6 gal
-----------------------------------------------------------
OUT-EAST 97.29 0.54 8.13 0.154
OUT-EX-SITE 40.70 6.54 16.88 0.713
OUT-N 24.27 0.23 1.87 0.017
OUT-POND 98.57 0.99 1.00 0.315
OUT-SE 65.82 0.38 4.87 0.072
OUT-SW 98.60 1.13 17.96 0.332
-----------------------------------------------------------
System 70.88 9.82 48.77 1.604
********************
Link Flow Summary
********************
-----------------------------------------------------------------------------
Maximum Time of Max Maximum Max/ Max/
|Flow| Occurrence |Veloc| Full Full
Link Type CFS days hr:min ft/sec Flow Depth
-----------------------------------------------------------------------------
GT-A-1-A CONDUIT 14.36 0 00:40 2.35 0.02 0.23
GT-A-1-B CONDUIT 10.40 0 00:42 2.41 0.02 0.19
GT-A-1-C CONDUIT 10.58 0 00:41 2.01 0.02 0.22
GT-A-1-C-1 CONDUIT 7.77 0 00:42 1.38 0.01 0.22
GT-A-1-D CONDUIT 17.42 0 00:41 2.29 0.03 0.26
GT-A-1-F CONDUIT 17.31 0 00:42 2.08 0.02 0.36
GT-A2-1-A CONDUIT 12.46 0 00:40 1.60 0.02 0.38
GT-A-B CONDUIT 10.60 0 00:45 1.10 0.01 0.22
GT-AR-A CONDUIT 4.57 0 00:41 1.21 0.03 0.40
GT-AR-B CONDUIT 14.83 0 00:44 1.75 0.18 0.59
GT-AR-C CONDUIT 17.96 0 00:46 1.79 0.26 0.63
GT-B-1-A CONDUIT 39.91 0 00:44 1.94 0.05 0.43
GT-B-1-B CONDUIT 39.84 0 00:44 2.68 0.14 0.51
BLOOM MULTI-FAMILY DEVELOPMENT - 100-Year
EPA SWMM 5.2.4 Page 14
GT-C-1-A CONDUIT 11.57 0 00:40 2.66 0.01 0.20
GT-C-1-B CONDUIT 8.22 0 00:41 1.57 0.01 0.21
GT-C-1-C CONDUIT 19.24 0 00:41 3.02 0.02 0.24
GT-C-1-D CONDUIT 19.21 0 00:41 2.35 0.02 0.39
GT-C-B CONDUIT 24.67 0 00:42 2.16 0.14 0.48
GT-INT-B CONDUIT 8.23 0 00:42 2.56 0.08 0.36
GT-INT-C CONDUIT 8.13 0 00:43 3.20 0.04 0.31
P-A-1 CONDUIT 3.58 0 00:41 3.85 0.30 1.00
P-A-2 CONDUIT 6.04 0 00:41 3.42 0.52 1.00
P-A2-1 CONDUIT 7.39 0 00:52 4.18 0.71 1.00
P-A2-2 CONDUIT 7.37 0 00:52 4.17 0.53 1.00
P-A2-3 CONDUIT 6.53 0 00:49 3.69 0.37 1.00
P-A2-4 CONDUIT 4.58 0 00:33 2.99 12.45 1.00
P-A-3 CONDUIT 7.55 0 01:19 4.27 0.83 1.00
P-A-4 CONDUIT 12.46 0 00:35 7.05 1.38 1.00
P-A-5 CONDUIT 16.44 0 00:35 9.30 2.23 1.00
P-A-6 CONDUIT 15.60 0 00:35 8.50 0.31 1.00
P-A-7 CONDUIT 21.83 0 00:46 6.95 1.36 1.00
P-A-8 CONDUIT 21.83 0 00:46 6.95 1.36 1.00
P-A-UD-1 CONDUIT 4.24 0 00:34 2.40 0.08 1.00
P-A-UD-2 CONDUIT 4.22 0 00:33 4.08 7.95 1.00
P-B-1 CONDUIT 6.64 0 01:10 3.76 0.89 1.00
P-C-A CONDUIT 2.90 0 00:41 1.83 0.28 1.00
P-C-B CONDUIT 5.76 0 00:38 3.26 0.76 1.00
P-C-C CONDUIT 5.43 0 00:42 3.07 1.03 1.00
P-C-D CONDUIT 5.91 0 01:20 3.79 0.80 1.00
P-UD-A CONDUIT 0.97 0 00:34 4.93 1.47 1.00
P-UD-B CONDUIT 27.68 0 00:52 0.51 2.68 1.00
P-Z-POND-OUT CONDUIT 1.00 0 00:21 4.42 0.07 1.00
SW-B-P CONDUIT 35.47 0 00:44 6.05 0.01 0.11
SW-CHASE CONDUIT 2.14 0 00:40 2.57 0.00 0.06
SDI A1-2 ORIFICE 6.75 0 00:36 1.00
SDI B-1 ORIFICE 8.71 0 00:37 1.00
SDI C-3 ORIFICE 2.90 0 00:41
SDI-A-1-4 ORIFICE 2.56 0 00:42
SDI-A-1-5 ORIFICE 3.58 0 00:40
SDI-A3-1 ORIFICE 8.11 0 00:40 1.00
SDI-C-1 ORIFICE 5.44 0 00:41 1.00
SDI-C-3-1 ORIFICE 3.44 0 00:38
BLOOM MULTI-FAMILY DEVELOPMENT - 100-Year
EPA SWMM 5.2.4 Page 15
***************************
Flow Classification Summary
***************************
-------------------------------------------------------------------------------------
Adjusted ---------- Fraction of Time in Flow Class ----------
/Actual Up Down Sub Sup Up Down Norm Inlet
Conduit Length Dry Dry Dry Crit Crit Crit Crit Ltd Ctrl
-------------------------------------------------------------------------------------
GT-A-1-A 1.00 0.01 0.00 0.00 0.29 0.70 0.00 0.00 0.00 0.00
GT-A-1-B 1.00 0.02 0.00 0.00 0.56 0.42 0.00 0.00 0.00 0.00
GT-A-1-C 1.00 0.01 0.00 0.00 0.98 0.01 0.00 0.00 0.95 0.00
GT-A-1-C-1 1.00 0.01 0.04 0.00 0.96 0.00 0.00 0.00 0.98 0.00
GT-A-1-D 1.00 0.01 0.00 0.00 0.99 0.00 0.00 0.00 0.81 0.00
GT-A-1-F 1.00 0.01 0.00 0.00 0.12 0.87 0.00 0.00 0.07 0.00
GT-A2-1-A 1.00 0.01 0.00 0.00 0.98 0.01 0.00 0.00 0.05 0.00
GT-A-B 1.00 0.01 0.95 0.00 0.04 0.00 0.00 0.00 0.95 0.00
GT-AR-A 1.00 0.01 0.00 0.00 0.99 0.00 0.00 0.00 0.98 0.00
GT-AR-B 1.00 0.01 0.00 0.00 0.99 0.00 0.00 0.00 0.96 0.00
GT-AR-C 1.00 0.01 0.00 0.00 0.99 0.00 0.00 0.00 0.00 0.00
GT-B-1-A 1.00 0.01 0.00 0.00 0.99 0.01 0.00 0.00 0.98 0.00
GT-B-1-B 1.00 0.01 0.00 0.00 0.58 0.40 0.00 0.00 0.00 0.00
GT-C-1-A 1.00 0.01 0.00 0.00 0.00 0.99 0.00 0.00 0.00 0.00
GT-C-1-B 1.00 0.01 0.00 0.00 0.99 0.00 0.00 0.00 0.99 0.00
GT-C-1-C 1.00 0.01 0.00 0.00 0.82 0.17 0.00 0.00 0.82 0.00
GT-C-1-D 1.00 0.01 0.00 0.00 0.09 0.90 0.00 0.00 0.09 0.00
GT-C-B 1.00 0.01 0.93 0.00 0.07 0.00 0.00 0.00 0.93 0.00
GT-INT-B 1.00 0.01 0.00 0.00 0.93 0.06 0.00 0.00 0.00 0.00
GT-INT-C 1.00 0.01 0.00 0.00 0.59 0.40 0.00 0.00 0.30 0.00
P-A-1 1.00 0.01 0.00 0.00 0.57 0.42 0.00 0.00 0.89 0.00
P-A-2 1.00 0.01 0.00 0.00 0.98 0.01 0.00 0.00 0.85 0.00
P-A2-1 1.00 0.01 0.00 0.00 0.98 0.01 0.00 0.00 0.00 0.00
P-A2-2 1.00 0.02 0.00 0.00 0.98 0.00 0.00 0.00 0.00 0.00
P-A2-3 1.00 0.03 0.86 0.00 0.12 0.00 0.00 0.00 0.90 0.00
P-A2-4 1.00 0.02 0.00 0.00 0.98 0.00 0.00 0.00 0.00 0.00
P-A-3 1.00 0.01 0.00 0.00 0.98 0.01 0.00 0.00 0.83 0.00
P-A-4 1.00 0.02 0.00 0.00 0.98 0.01 0.00 0.00 0.00 0.00
P-A-5 1.00 0.02 0.00 0.00 0.98 0.00 0.00 0.00 0.00 0.00
P-A-6 1.00 0.03 0.43 0.00 0.53 0.02 0.00 0.00 0.89 0.00
P-A-7 1.00 0.03 0.00 0.00 0.97 0.00 0.00 0.00 0.00 0.00
P-A-8 1.00 0.03 0.00 0.00 0.92 0.00 0.00 0.05 0.00 0.00
BLOOM MULTI-FAMILY DEVELOPMENT - 100-Year
EPA SWMM 5.2.4 Page 16
P-A-UD-1 1.00 0.02 0.03 0.00 0.21 0.00 0.74 0.00 0.00 0.00
P-A-UD-2 1.00 0.02 0.00 0.00 0.98 0.00 0.00 0.00 0.00 0.00
P-B-1 1.00 0.02 0.00 0.00 0.98 0.00 0.00 0.00 0.01 0.00
P-C-A 1.00 0.01 0.00 0.00 0.99 0.00 0.00 0.00 0.91 0.00
P-C-B 1.00 0.01 0.00 0.00 0.98 0.01 0.00 0.00 0.60 0.00
P-C-C 1.00 0.01 0.01 0.00 0.98 0.00 0.00 0.00 0.82 0.00
P-C-D 1.00 0.01 0.00 0.00 0.98 0.01 0.00 0.00 0.83 0.00
P-UD-A 1.00 0.02 0.00 0.00 0.97 0.01 0.00 0.00 0.00 0.00
P-UD-B 1.00 0.02 0.00 0.00 0.98 0.00 0.00 0.00 0.00 0.00
P-Z-POND-OUT 1.00 0.01 0.00 0.00 0.97 0.02 0.00 0.00 0.00 0.00
SW-B-P 1.00 0.40 0.56 0.00 0.00 0.00 0.00 0.04 0.00 0.00
SW-CHASE 1.00 0.01 0.00 0.00 0.00 0.00 0.00 0.99 0.00 0.00
*************************
Conduit Surcharge Summary
*************************
----------------------------------------------------------------------------
Hours Hours
--------- Hours Full -------- Above Full Capacity
Conduit Both Ends Upstream Dnstream Normal Flow Limited
----------------------------------------------------------------------------
P-A-1 0.41 0.41 1.02 0.01 0.01
P-A-2 1.02 1.02 1.19 0.01 0.01
P-A2-1 2.10 2.10 3.58 0.01 0.35
P-A2-2 3.58 3.58 8.04 0.01 0.01
P-A2-3 0.50 0.50 11.44 0.01 0.01
P-A2-4 8.01 8.02 8.04 1.94 2.32
P-A-3 1.19 1.19 2.27 0.01 0.01
P-A-4 2.27 2.27 11.65 0.89 1.09
P-A-5 11.65 11.65 11.65 1.20 1.91
P-A-6 0.52 0.52 4.17 0.01 0.01
P-A-7 4.16 4.16 11.41 0.65 0.72
P-A-8 10.91 11.41 10.91 0.65 0.95
P-A-UD-1 0.62 0.62 11.64 0.01 0.01
P-A-UD-2 7.87 8.02 7.89 2.01 3.25
P-B-1 1.81 1.81 11.65 0.01 0.01
P-C-A 0.51 0.51 0.99 0.01 0.01
P-C-B 0.99 0.99 1.00 0.01 0.25
P-C-C 0.98 0.98 1.00 0.08 0.01
BLOOM MULTI-FAMILY DEVELOPMENT - 100-Year
EPA SWMM 5.2.4 Page 17
P-C-D 1.00 1.00 1.19 0.01 0.01
P-UD-A 11.61 11.61 11.63 0.73 2.28
P-UD-B 1.26 1.26 1.26 0.07 0.41
P-Z-POND-OUT 0.01 11.44 0.01 0.01 11.29
Analysis begun on: Tue Jan 23 14:31:45 2024
Analysis ended on: Tue Jan 23 14:31:45 2024
Total elapsed time: < 1 sec
BLOOM MULTI-FAMILY DEVELOPMENT - 100-Year
EPA SWMM 5.2.4 Page 18
EPA STORM WATER MANAGEMENT MODEL - VERSION 5.2 (Build 5.2.4)
------------------------------------------------------------
BLOOM MULTI-FAMILY DEVELOPMENT
EPA SWMM Version 5.2.4 Last Updated 1/22/2024
WARNING 04: minimum elevation drop used for Conduit P-A2-4
WARNING 04: minimum elevation drop used for Conduit P-A-UD-2
WARNING 04: minimum elevation drop used for Conduit P-UD-B
*************
Element Count
*************
Number of rain gages ...... 1
Number of subcatchments ... 18
Number of nodes ........... 49
Number of links ........... 52
Number of pollutants ...... 0
Number of land uses ....... 0
****************
Raingage Summary
****************
Data Recording
Name Data Source Type Interval
------------------------------------------------------------------------
Gage1 2year INTENSITY 5 min.
********************
Subcatchment Summary
********************
Name Area Width %Imperv %Slope Rain Gage Outlet
-----------------------------------------------------------------------------------------------------------
C-01 2.07 375.00 79.00 2.8000 Gage1 RD-A-1-A
C-02 1.56 300.00 82.00 3.7000 Gage1 RD-4-C
C-03 1.95 325.00 82.00 3.7000 Gage1 RD-SDI-C-3-1
C-04 1.40 350.00 84.00 3.2000 Gage1 RD-A-1-B
C-05 1.03 275.00 76.00 3.4000 Gage1 RD-5-A
C-06 0.32 200.00 47.00 3.5000 Gage1 RD-CHASE
BLOOM MULTI-FAMILY DEVELOPMENT - 2 Year
EPA SWMM Ver 5.2.4 Page 1
C-07 1.64 375.00 90.00 2.7000 Gage1 RD-4-A
C-08 2.38 575.00 21.00 10.0000 Gage1 BLOOM-POND
C-OS-1 0.71 150.00 62.00 4.9000 Gage1 RD-AR-1-A
C-OS-2 0.23 500.00 12.00 2.0000 Gage1 OUT-N
C-OS-3 1.00 100.00 52.00 5.7000 Gage1 RD-ANT-1-B
C-OS-4 0.85 175.00 69.00 5.1000 Gage1 RD-AR-1-B
C-OS-5 0.74 150.00 58.00 6.0000 Gage1 RD-AR-1-C
C-OS-6 0.71 60.00 79.00 1.5000 Gage1 RD-ANT-1-B
C-OS-7 0.75 150.00 77.00 1.5000 Gage1 OUT-SE
C-OS-8 0.47 60.00 77.00 1.5000 Gage1 BLOOM-POND
C-OS-9 1.27 150.00 78.00 1.0000 Gage1 RD-AR-1-B
EX-SITE 15.83 550.00 2.00 1.0000 Gage1 OUT-EX-SITE
************
Node Summary
************
Invert Max. Ponded External
Name Type Elev. Depth Area Inflow
-------------------------------------------------------------------------------
J-SDI A1-2 JUNCTION 4933.07 12.00 0.0
J-SDI B-1 JUNCTION 4933.43 12.00 0.0
J-SDI C-3 JUNCTION 4938.31 12.00 0.0
J-SDI-A-1-4 JUNCTION 4935.43 12.00 0.0
J-SDI-A-1-5 JUNCTION 4938.42 12.00 0.0
J-SDI-A3-1 JUNCTION 4933.06 12.00 0.0
J-SDI-C-1 JUNCTION 4936.08 12.00 0.0
J-SDI-C-3-1 JUNCTION 4936.00 12.00 0.0
J-SDMH A1-1 JUNCTION 4932.45 12.00 0.0
J-SDMH A-1-3 JUNCTION 4934.86 12.00 0.0
J-SDMH A-2 JUNCTION 4931.43 12.00 0.0
J-SDMH A-2-1 JUNCTION 4932.39 12.00 0.0
J-SDMH A-2-2 JUNCTION 4932.75 12.00 0.0
J-SDMH A-3 JUNCTION 4932.18 12.00 0.0
J-SDMH A-4 JUNCTION 4932.40 12.00 0.0
J-SDMH C-1 JUNCTION 4935.83 12.00 0.0
J-SDMH-CH-A-4-A JUNCTION 4932.39 12.00 0.0
J-SDMH-CH-A-4-B JUNCTION 4932.39 12.00 0.0
J-STMH-CH-A-2-1 JUNCTION 4932.39 12.00 0.0
RD-4-A JUNCTION 4937.79 12.00 0.0
RD-4-B JUNCTION 4941.81 12.00 0.0
BLOOM MULTI-FAMILY DEVELOPMENT - 2 Year
EPA SWMM Ver 5.2.4 Page 2
RD-4-C JUNCTION 4943.10 12.00 0.0
RD-4-D JUNCTION 4939.96 12.00 0.0
RD-5-A JUNCTION 4938.99 12.00 0.0
RD-5-B JUNCTION 4938.34 12.00 0.0
RD-A-1-A JUNCTION 4943.02 12.00 0.0
RD-A-1-B JUNCTION 4940.42 12.00 0.0
RD-A-1-D JUNCTION 4940.18 12.00 0.0
RD-ANT-1-B JUNCTION 4943.00 12.00 0.0
RD-ANT-1-C JUNCTION 4941.00 12.00 0.0
RD-AR-1-A JUNCTION 4941.00 12.00 0.0
RD-AR-1-B JUNCTION 4938.00 12.00 0.0
RD-AR-1-C JUNCTION 4936.00 12.00 0.0
RD-CHASE JUNCTION 4937.22 6.00 50.0
RD-INLET-A-1-4 JUNCTION 4941.14 12.00 0.0
RD-INLET-A-1-5 JUNCTION 4942.56 12.00 0.0
RD-SDI A1-2 JUNCTION 4939.00 12.00 0.0
RD-SDI-A3-1 JUNCTION 4937.28 12.00 0.0
RD-SDI-B-1 JUNCTION 4938.14 12.00 0.0
RD-SDI-C-1 JUNCTION 4939.11 12.00 0.0
RD-SDI-C-3-1 JUNCTION 4940.43 12.00 0.0
RD-SDI-C-3A JUNCTION 4942.08 12.00 0.0
OUT-EAST OUTFALL 4940.00 1.00 0.0
OUT-EX-SITE OUTFALL 4936.00 0.00 0.0
OUT-N OUTFALL 4946.00 0.00 0.0
OUT-POND OUTFALL 4927.00 1.50 0.0
OUT-SE OUTFALL 4936.00 0.00 0.0
OUT-SW OUTFALL 4935.90 1.00 0.0
BLOOM-POND STORAGE 4928.40 11.00 0.0
************
Link Summary
************
Name From Node To Node Type Length %Slope Roughness
---------------------------------------------------------------------------------------------
GT-A-1-A RD-A-1-A RD-INLET-A-1-5 CONDUIT 92.8 0.5002 0.0160
GT-A-1-B RD-4-B RD-INLET-A-1-4 CONDUIT 117.0 0.5745 0.0160
GT-A-1-C RD-INLET-A-1-5 RD-4-B CONDUIT 124.9 0.6036 0.0160
GT-A-1-C-1 RD-INLET-A-1-4 RD-A-1-B CONDUIT 71.1 1.0006 0.0160
GT-A-1-D RD-A-1-B RD-A-1-D CONDUIT 49.5 0.5010 0.0160
GT-A-1-F RD-A-1-D RD-SDI A1-2 CONDUIT 161.4 0.7278 0.0160
BLOOM MULTI-FAMILY DEVELOPMENT - 2 Year
EPA SWMM Ver 5.2.4 Page 3
GT-A2-1-A RD-4-A RD-SDI-A3-1 CONDUIT 120.9 0.4203 0.0160
GT-A-B RD-SDI A1-2 RD-5-A CONDUIT 174.7 0.1958 0.0160
GT-AR-A RD-AR-1-A RD-AR-1-B CONDUIT 317.9 0.9437 0.0160
GT-AR-B RD-AR-1-B RD-AR-1-C CONDUIT 680.3 0.2940 0.0160
GT-AR-C RD-AR-1-C OUT-SW CONDUIT 47.4 0.2109 0.0160
GT-B-1-A RD-5-A RD-5-B CONDUIT 77.3 0.8504 0.0160
GT-B-1-B RD-5-B RD-SDI-B-1 CONDUIT 48.3 0.3974 0.0160
GT-C-1-A RD-4-C RD-SDI-C-3A CONDUIT 115.2 0.8846 0.0160
GT-C-1-B RD-SDI-C-3A RD-SDI-C-3-1 CONDUIT 229.4 0.7190 0.0160
GT-C-1-C RD-SDI-C-3-1 RD-4-D CONDUIT 37.1 1.2491 0.0160
GT-C-1-D RD-4-D RD-SDI-C-1 CONDUIT 69.0 1.2398 0.0160
GT-C-B RD-SDI-C-1 RD-5-A CONDUIT 129.8 0.3450 0.0160
GT-INT-B RD-ANT-1-B RD-ANT-1-C CONDUIT 370.9 0.5393 0.0160
GT-INT-C RD-ANT-1-C OUT-EAST CONDUIT 64.4 1.5532 0.0160
P-A-1 J-SDI-A-1-5 J-SDI-A-1-4 CONDUIT 239.4 1.2492 0.0130
P-A-2 J-SDI-A-1-4 J-SDMH A-1-3 CONDUIT 46.0 1.2403 0.0130
P-A2-1 J-SDI-A3-1 J-SDMH A-2-2 CONDUIT 31.3 0.9914 0.0130
P-A2-2 J-SDMH A-2-2 J-SDMH A-2-1 CONDUIT 20.2 1.7789 0.0130
P-A2-3 J-SDMH A-2-1 J-SDMH A-3 CONDUIT 94.1 2.8817 0.0130
P-A2-4 J-STMH-CH-A-2-1 J-SDMH A-2-1 CONDUIT 81.7 0.0012 0.0130
P-A-3 J-SDMH A-1-3 J-SDI A1-2 CONDUIT 236.2 0.7567 0.0130
P-A-4 J-SDI A1-2 J-SDMH A1-1 CONDUIT 84.8 0.7349 0.0130
P-A-5 J-SDMH A-4 J-SDMH A1-1 CONDUIT 10.2 -0.4907 0.0130
P-A-6 J-SDMH A-4 J-SDMH A-3 CONDUIT 44.3 5.0210 0.0130
P-A-7 J-SDMH A-3 J-SDMH A-2 CONDUIT 149.8 0.5040 0.0130
P-A-8 J-SDMH A-2 BLOOM-POND CONDUIT 52.1 0.5007 0.0130
P-A-UD-1 J-SDMH-CH-A-4-A J-SDMH A-4 CONDUIT 8.7 23.6111 0.0130
P-A-UD-2 J-SDMH-CH-A-4-B J-SDMH-CH-A-4-A CONDUIT 39.1 0.0026 0.0130
P-B-1 J-SDI B-1 J-SDMH A1-1 CONDUIT 195.0 0.5025 0.0130
P-C-A J-SDI C-3 J-SDI-C-3-1 CONDUIT 231.0 1.0002 0.0130
P-C-B J-SDI-C-3-1 J-SDMH C-1 CONDUIT 32.6 0.5213 0.0130
P-C-C J-SDI-C-1 J-SDMH C-1 CONDUIT 98.3 0.2544 0.0130
P-C-D J-SDMH C-1 J-SDMH A-1-3 CONDUIT 195.6 0.4959 0.0130
P-UD-A J-SDMH-CH-A-4-B J-SDMH A-3 CONDUIT 10.0 2.1005 0.0160
P-UD-B J-STMH-CH-A-2-1 J-SDMH-CH-A-4-B CONDUIT 78.0 0.0013 0.0240
P-Z-POND-OUT BLOOM-POND OUT-POND CONDUIT 100.0 1.4001 0.0120
SW-B-P RD-SDI-B-1 BLOOM-POND CONDUIT 20.0 24.4114 0.0350
SW-CHASE RD-CHASE BLOOM-POND CONDUIT 20.0 14.2423 0.0350
SDI A1-2 RD-SDI A1-2 J-SDI A1-2 ORIFICE
SDI B-1 RD-SDI-B-1 J-SDI B-1 ORIFICE
SDI C-3 RD-SDI-C-3A J-SDI C-3 ORIFICE
BLOOM MULTI-FAMILY DEVELOPMENT - 2 Year
EPA SWMM Ver 5.2.4 Page 4
SDI-A-1-4 RD-INLET-A-1-4 J-SDI-A-1-4 ORIFICE
SDI-A-1-5 RD-INLET-A-1-5 J-SDI-A-1-5 ORIFICE
SDI-A3-1 RD-SDI-A3-1 J-SDI-A3-1 ORIFICE
SDI-C-1 RD-SDI-C-1 J-SDI-C-1 ORIFICE
SDI-C-3-1 RD-SDI-C-3-1 J-SDI-C-3-1 ORIFICE
*********************
Cross Section Summary
*********************
Full Full Hyd. Max. No. of Full
Conduit Shape Depth Area Rad. Width Barrels Flow
---------------------------------------------------------------------------------------
GT-A-1-A TRAPEZOIDAL 1.50 112.80 0.75 150.20 1 612.10
GT-A-1-B TRAPEZOIDAL 1.50 112.80 0.75 150.20 1 655.98
GT-A-1-C TRAPEZOIDAL 1.50 112.80 0.75 150.20 1 672.38
GT-A-1-C-1 TRAPEZOIDAL 1.50 112.80 0.75 150.20 1 865.72
GT-A-1-D TRAPEZOIDAL 1.50 112.80 0.75 150.20 1 612.59
GT-A-1-F TRAPEZOIDAL 1.50 112.80 0.75 150.20 1 738.33
GT-A2-1-A TRAPEZOIDAL 1.50 136.50 0.75 181.00 1 680.88
GT-A-B TRAPEZOIDAL 2.00 200.40 1.00 200.20 1 823.94
GT-AR-A TRAPEZOIDAL 1.00 25.60 0.50 51.10 1 144.89
GT-AR-B TRAPEZOIDAL 1.00 25.60 0.50 51.10 1 80.87
GT-AR-C TRAPEZOIDAL 1.00 25.60 0.50 51.10 1 68.50
GT-B-1-A TRAPEZOIDAL 1.50 112.80 0.75 150.20 1 798.10
GT-B-1-B TRAPEZOIDAL 1.50 57.68 0.75 76.70 1 277.68
GT-C-1-A TRAPEZOIDAL 1.50 112.80 0.75 150.20 1 813.98
GT-C-1-B TRAPEZOIDAL 1.50 112.80 0.75 150.20 1 733.84
GT-C-1-C TRAPEZOIDAL 1.50 112.80 0.75 150.20 1 967.25
GT-C-1-D TRAPEZOIDAL 1.50 112.80 0.75 150.20 1 963.64
GT-C-B TRAPEZOIDAL 1.00 50.10 0.50 100.10 1 172.27
GT-INT-B TRAPEZOIDAL 1.00 25.60 0.50 51.10 1 109.53
GT-INT-C TRAPEZOIDAL 1.00 25.60 0.50 51.10 1 185.88
P-A-1 CIRCULAR 1.50 1.77 0.38 1.50 1 11.74
P-A-2 CIRCULAR 1.50 1.77 0.38 1.50 1 11.70
P-A2-1 CIRCULAR 1.50 1.77 0.38 1.50 1 10.46
P-A2-2 CIRCULAR 1.50 1.77 0.38 1.50 1 14.01
P-A2-3 CIRCULAR 1.50 1.77 0.38 1.50 1 17.83
P-A2-4 CIRCULAR 1.50 1.77 0.38 1.50 1 0.37
P-A-3 CIRCULAR 1.50 1.77 0.38 1.50 1 9.14
P-A-4 CIRCULAR 1.50 1.77 0.38 1.50 1 9.01
BLOOM MULTI-FAMILY DEVELOPMENT - 2 Year
EPA SWMM Ver 5.2.4 Page 5
P-A-5 CIRCULAR 1.50 1.77 0.38 1.50 1 7.36
P-A-6 CIRCULAR 2.00 3.14 0.50 2.00 1 50.69
P-A-7 CIRCULAR 2.00 3.14 0.50 2.00 1 16.06
P-A-8 CIRCULAR 2.00 3.14 0.50 2.00 1 16.01
P-A-UD-1 CIRCULAR 1.50 1.77 0.38 1.50 1 51.04
P-A-UD-2 CIRCULAR 1.50 1.77 0.38 1.50 1 0.53
P-B-1 CIRCULAR 1.50 1.77 0.38 1.50 1 7.45
P-C-A CIRCULAR 1.50 1.77 0.38 1.50 1 10.51
P-C-B CIRCULAR 1.50 1.77 0.38 1.50 1 7.58
P-C-C CIRCULAR 1.50 1.77 0.38 1.50 1 5.30
P-C-D CIRCULAR 1.50 1.77 0.38 1.50 1 7.40
P-UD-A CIRCULAR 0.50 0.20 0.12 0.50 1 0.66
P-UD-B CIRCULAR 2.50 4.91 0.62 2.50 13 0.80
P-Z-POND-OUT CIRCULAR 1.50 1.77 0.38 1.50 1 13.47
SW-B-P TRAPEZOIDAL 2.00 230.00 1.07 215.00 1 5046.00
SW-CHASE TRAPEZOIDAL 2.00 201.00 1.00 200.50 1 3225.52
****************
Analysis Options
****************
Flow Units ............... CFS
Process Models:
Rainfall/Runoff ........ YES
RDII ................... NO
Snowmelt ............... NO
Groundwater ............ NO
Flow Routing ........... YES
Ponding Allowed ........ YES
Water Quality .......... NO
Infiltration Method ...... HORTON
Flow Routing Method ...... DYNWAVE
Surcharge Method ......... SLOT
Starting Date ............ 01/22/2024 00:00:00
Ending Date .............. 01/22/2024 12:00:00
Antecedent Dry Days ...... 0.0
Report Time Step ......... 00:05:00
Wet Time Step ............ 00:05:00
Dry Time Step ............ 01:00:00
Routing Time Step ........ 2.00 sec
Variable Time Step ....... YES
BLOOM MULTI-FAMILY DEVELOPMENT - 2 Year
EPA SWMM Ver 5.2.4 Page 6
Maximum Trials ........... 20
Number of Threads ........ 1
Head Tolerance ........... 0.005000 ft
*********************
Control Actions Taken
*********************
************************** Volume Depth
Runoff Quantity Continuity acre-feet inches
************************** --------- -------
Total Precipitation ...... 2.842 0.977
Evaporation Loss ......... 0.000 0.000
Infiltration Loss ........ 1.750 0.602
Surface Runoff ........... 0.988 0.340
Final Storage ............ 0.113 0.039
Continuity Error (%) ..... -0.301
************************** Volume Volume
Flow Routing Continuity acre-feet 10^6 gal
************************** --------- ---------
Dry Weather Inflow ....... 0.000 0.000
Wet Weather Inflow ....... 0.988 0.322
Groundwater Inflow ....... 0.000 0.000
RDII Inflow .............. 0.000 0.000
External Inflow .......... 0.000 0.000
External Outflow ......... 0.969 0.316
Flooding Loss ............ 0.000 0.000
Evaporation Loss ......... 0.000 0.000
Exfiltration Loss ........ 0.003 0.001
Initial Stored Volume .... 0.000 0.000
Final Stored Volume ...... 0.016 0.005
Continuity Error (%) ..... 0.030
*************************
Highest Continuity Errors
*************************
BLOOM MULTI-FAMILY DEVELOPMENT - 2 Year
EPA SWMM Ver 5.2.4 Page 7
Node J-SDMH-CH-A-4-A (-5.10%)
Node J-SDI B-1 (4.48%)
Node J-SDMH A-4 (2.02%)
Node J-SDI A1-2 (1.42%)
***************************
Time-Step Critical Elements
***************************
Link P-A-UD-1 (32.73%)
Link P-UD-A (2.52%)
********************************
Highest Flow Instability Indexes
********************************
Link P-A-5 (26)
Link P-A-6 (2)
Link P-UD-B (1)
Link P-A-UD-1 (1)
*********************************
Most Frequent Nonconverging Nodes
*********************************
Convergence obtained at all time steps.
*************************
Routing Time Step Summary
*************************
Minimum Time Step : 0.50 sec
Average Time Step : 1.74 sec
Maximum Time Step : 2.00 sec
% of Time in Steady State : 0.00
Average Iterations per Step : 2.14
% of Steps Not Converging : 0.00
Time Step Frequencies :
2.000 - 1.516 sec : 74.36 %
1.516 - 1.149 sec : 14.55 %
1.149 - 0.871 sec : 5.81 %
BLOOM MULTI-FAMILY DEVELOPMENT - 2 Year
EPA SWMM Ver 5.2.4 Page 8
0.871 - 0.660 sec : 5.14 %
0.660 - 0.500 sec : 0.13 %
***************************
Subcatchment Runoff Summary
***************************
------------------------------------------------------------------------------------------------------------------------------
Total Total Total Total Imperv Perv Total Total Peak Runoff
Precip Runon Evap Infil Runoff Runoff Runoff Runoff Runoff Coeff
Subcatchment in in in in in in in 10^6 gal CFS
------------------------------------------------------------------------------------------------------------------------------
C-01 0.98 0.00 0.00 0.20 0.71 0.01 0.71 0.04 2.50 0.721
C-02 0.98 0.00 0.00 0.17 0.73 0.01 0.73 0.03 2.14 0.749
C-03 0.98 0.00 0.00 0.17 0.73 0.01 0.73 0.04 2.47 0.748
C-04 0.98 0.00 0.00 0.15 0.75 0.01 0.75 0.03 2.13 0.769
C-05 0.98 0.00 0.00 0.22 0.68 0.01 0.68 0.02 1.54 0.700
C-06 0.98 0.00 0.00 0.49 0.44 0.03 0.44 0.00 0.40 0.454
C-07 0.98 0.00 0.00 0.09 0.80 0.01 0.80 0.04 2.37 0.819
C-08 0.98 0.00 0.00 0.84 0.19 0.12 0.12 0.01 0.77 0.123
C-OS-1 0.98 0.00 0.00 0.36 0.56 0.01 0.56 0.01 0.92 0.575
C-OS-2 0.98 0.00 0.00 0.81 0.16 0.05 0.16 0.00 0.08 0.163
C-OS-3 0.98 0.00 0.00 0.46 0.47 0.01 0.47 0.01 0.88 0.479
C-OS-4 0.98 0.00 0.00 0.29 0.62 0.01 0.62 0.01 1.17 0.637
C-OS-5 0.98 0.00 0.00 0.40 0.53 0.01 0.53 0.01 0.94 0.540
C-OS-6 0.98 0.00 0.00 0.20 0.69 0.00 0.69 0.01 0.46 0.709
C-OS-7 0.98 0.00 0.00 0.22 0.69 0.01 0.69 0.01 0.79 0.701
C-OS-8 0.98 0.00 0.00 0.22 0.68 0.01 0.68 0.01 0.39 0.697
C-OS-9 0.98 0.00 0.00 0.21 0.69 0.00 0.69 0.02 0.90 0.702
EX-SITE 0.98 0.00 0.00 0.96 0.02 0.00 0.02 0.01 0.83 0.020
******************
Node Depth Summary
******************
---------------------------------------------------------------------------------
Average Maximum Maximum Time of Max Reported
Depth Depth HGL Occurrence Max Depth
Node Type Feet Feet Feet days hr:min Feet
BLOOM MULTI-FAMILY DEVELOPMENT - 2 Year
EPA SWMM Ver 5.2.4 Page 9
---------------------------------------------------------------------------------
J-SDI A1-2 JUNCTION 1.41 2.98 4936.05 0 00:47 2.95
J-SDI B-1 JUNCTION 1.03 1.97 4935.40 0 00:45 1.94
J-SDI C-3 JUNCTION 0.06 0.30 4938.61 0 00:43 0.30
J-SDI-A-1-4 JUNCTION 0.11 1.33 4936.76 0 00:49 1.32
J-SDI-A-1-5 JUNCTION 0.06 0.31 4938.73 0 00:42 0.30
J-SDI-A3-1 JUNCTION 0.37 1.75 4934.81 0 01:04 1.75
J-SDI-C-1 JUNCTION 0.10 1.00 4937.08 0 00:49 1.00
J-SDI-C-3-1 JUNCTION 0.13 1.06 4937.06 0 00:49 1.06
J-SDMH A1-1 JUNCTION 1.97 2.91 4935.36 0 00:47 2.89
J-SDMH A-1-3 JUNCTION 0.19 1.88 4936.74 0 00:49 1.87
J-SDMH A-2 JUNCTION 0.26 1.20 4932.63 0 00:50 1.20
J-SDMH A-2-1 JUNCTION 0.64 2.41 4934.80 0 01:04 2.41
J-SDMH A-2-2 JUNCTION 0.47 2.06 4934.81 0 01:04 2.06
J-SDMH A-3 JUNCTION 0.22 1.00 4933.18 0 00:49 1.00
J-SDMH A-4 JUNCTION 1.99 2.52 4934.92 0 00:47 2.52
J-SDMH C-1 JUNCTION 0.15 1.20 4937.03 0 00:49 1.19
J-SDMH-CH-A-4-A JUNCTION 0.64 2.40 4934.79 0 01:05 2.40
J-SDMH-CH-A-4-B JUNCTION 0.62 2.40 4934.79 0 01:05 2.40
J-STMH-CH-A-2-1 JUNCTION 0.62 2.40 4934.79 0 01:04 2.40
RD-4-A JUNCTION 0.04 0.18 4937.97 0 00:40 0.18
RD-4-B JUNCTION 0.03 0.15 4941.96 0 00:43 0.15
RD-4-C JUNCTION 0.04 0.17 4943.26 0 00:40 0.17
RD-4-D JUNCTION 0.03 0.15 4940.12 0 00:41 0.15
RD-5-A JUNCTION 0.03 0.14 4939.13 0 00:41 0.13
RD-5-B JUNCTION 0.04 0.21 4938.55 0 00:42 0.21
RD-A-1-A JUNCTION 0.05 0.20 4943.22 0 00:40 0.20
RD-A-1-B JUNCTION 0.04 0.20 4940.62 0 00:43 0.19
RD-A-1-D JUNCTION 0.04 0.18 4940.36 0 00:42 0.18
RD-ANT-1-B JUNCTION 0.05 0.19 4943.19 0 00:43 0.19
RD-ANT-1-C JUNCTION 0.04 0.15 4941.15 0 00:46 0.15
RD-AR-1-A JUNCTION 0.03 0.14 4941.14 0 00:41 0.14
RD-AR-1-B JUNCTION 0.07 0.26 4938.26 0 00:47 0.26
RD-AR-1-C JUNCTION 0.08 0.30 4936.30 0 00:51 0.30
RD-CHASE JUNCTION 0.01 0.06 4937.28 0 00:40 0.06
RD-INLET-A-1-4 JUNCTION 0.01 0.10 4941.24 0 00:44 0.10
RD-INLET-A-1-5 JUNCTION 0.02 0.14 4942.71 0 00:41 0.14
RD-SDI A1-2 JUNCTION 0.02 0.18 4939.18 0 00:46 0.18
RD-SDI-A3-1 JUNCTION 0.02 0.17 4937.45 0 00:43 0.17
RD-SDI-B-1 JUNCTION 0.01 0.12 4938.26 0 00:44 0.12
RD-SDI-C-1 JUNCTION 0.02 0.17 4939.27 0 00:44 0.17
BLOOM MULTI-FAMILY DEVELOPMENT - 2 Year
EPA SWMM Ver 5.2.4 Page 10
RD-SDI-C-3-1 JUNCTION 0.02 0.16 4940.58 0 00:42 0.15
RD-SDI-C-3A JUNCTION 0.02 0.13 4942.21 0 00:42 0.13
OUT-EAST OUTFALL 0.04 0.15 4940.15 0 00:46 0.15
OUT-EX-SITE OUTFALL 0.00 0.00 4936.00 0 00:00 0.00
OUT-N OUTFALL 0.00 0.00 4946.00 0 00:00 0.00
OUT-POND OUTFALL 0.20 0.28 4927.28 0 00:40 0.28
OUT-SE OUTFALL 0.00 0.00 4936.00 0 00:00 0.00
OUT-SW OUTFALL 0.08 0.29 4936.19 0 00:51 0.29
BLOOM-POND STORAGE 1.12 2.06 4930.46 0 02:45 2.06
*******************
Node Inflow Summary
*******************
-------------------------------------------------------------------------------------------------
Maximum Maximum Lateral Total Flow
Lateral Total Time of Max Inflow Inflow Balance
Inflow Inflow Occurrence Volume Volume Error
Node Type CFS CFS days hr:min 10^6 gal 10^6 gal Percent
-------------------------------------------------------------------------------------------------
J-SDI A1-2 JUNCTION 0.00 7.49 0 00:48 0 0.138 1.443
J-SDI B-1 JUNCTION 0.00 1.38 0 00:44 0 0.0195 4.687
J-SDI C-3 JUNCTION 0.00 0.92 0 00:42 0 0.0186 -0.009
J-SDI-A-1-4 JUNCTION 0.00 1.70 0 00:43 0 0.0333 0.039
J-SDI-A-1-5 JUNCTION 0.00 1.09 0 00:41 0 0.0234 -0.055
J-SDI-A3-1 JUNCTION 0.00 2.22 0 00:43 0 0.0356 -0.018
J-SDI-C-1 JUNCTION 0.00 2.18 0 00:44 0 0.0264 0.012
J-SDI-C-3-1 JUNCTION 0.00 2.14 0 00:42 0 0.0435 0.006
J-SDMH A1-1 JUNCTION 0.00 8.72 0 00:47 0 0.155 0.000
J-SDMH A-1-3 JUNCTION 0.00 5.59 0 00:42 0 0.103 -0.078
J-SDMH A-2 JUNCTION 0.00 6.56 0 00:49 0 0.187 0.019
J-SDMH A-2-1 JUNCTION 0.00 2.20 0 00:43 0 0.0356 -0.034
J-SDMH A-2-2 JUNCTION 0.00 2.22 0 00:44 0 0.0356 0.010
J-SDMH A-3 JUNCTION 0.00 6.56 0 00:49 0 0.187 -0.021
J-SDMH A-4 JUNCTION 0.00 8.72 0 00:47 0 0.153 2.061
J-SDMH C-1 JUNCTION 0.00 4.27 0 00:44 0 0.0699 -0.007
J-SDMH-CH-A-4-A JUNCTION 0.00 2.76 0 00:47 0 0.0508 -4.849
J-SDMH-CH-A-4-B JUNCTION 0.00 3.17 0 00:47 0 0.0911 0.092
J-STMH-CH-A-2-1 JUNCTION 0.00 2.80 0 00:44 0 0.0382 -0.054
RD-4-A JUNCTION 2.37 2.37 0 00:40 0.0356 0.0356 -0.143
BLOOM MULTI-FAMILY DEVELOPMENT - 2 Year
EPA SWMM Ver 5.2.4 Page 11
RD-4-B JUNCTION 0.00 1.35 0 00:41 0 0.0162 0.163
RD-4-C JUNCTION 2.14 2.14 0 00:40 0.0311 0.0311 -0.065
RD-4-D JUNCTION 0.00 2.22 0 00:42 0 0.0264 -0.080
RD-5-A JUNCTION 1.54 1.54 0 00:40 0.0191 0.0191 -0.083
RD-5-B JUNCTION 0.00 1.42 0 00:41 0 0.0191 0.056
RD-A-1-A JUNCTION 2.50 2.50 0 00:40 0.0396 0.0396 -0.024
RD-A-1-B JUNCTION 2.13 2.51 0 00:42 0.0285 0.0348 -0.123
RD-A-1-D JUNCTION 0.00 2.50 0 00:43 0 0.0349 -0.168
RD-ANT-1-B JUNCTION 1.28 1.28 0 00:40 0.026 0.026 -0.238
RD-ANT-1-C JUNCTION 0.00 1.23 0 00:44 0 0.0261 0.279
RD-AR-1-A JUNCTION 0.92 0.92 0 00:40 0.0108 0.0108 -1.466
RD-AR-1-B JUNCTION 1.98 2.76 0 00:40 0.0379 0.0488 -0.268
RD-AR-1-C JUNCTION 0.94 2.88 0 00:45 0.0106 0.0596 0.566
RD-CHASE JUNCTION 0.40 0.40 0 00:40 0.00381 0.00381 -0.014
RD-INLET-A-1-4 JUNCTION 0.00 1.31 0 00:43 0 0.0162 0.282
RD-INLET-A-1-5 JUNCTION 0.00 2.48 0 00:40 0 0.0397 -0.073
RD-SDI A1-2 JUNCTION 0.00 2.53 0 00:44 0 0.0349 0.210
RD-SDI-A3-1 JUNCTION 0.00 2.37 0 00:41 0 0.0357 0.157
RD-SDI-B-1 JUNCTION 0.00 1.41 0 00:42 0 0.0191 0.042
RD-SDI-C-1 JUNCTION 0.00 2.24 0 00:42 0 0.0264 0.083
RD-SDI-C-3-1 JUNCTION 2.47 3.47 0 00:41 0.0388 0.0513 -0.021
RD-SDI-C-3A JUNCTION 0.00 2.11 0 00:40 0 0.0311 0.094
OUT-EAST OUTFALL 0.00 1.21 0 00:46 0 0.026 0.000
OUT-EX-SITE OUTFALL 0.83 0.83 0 00:40 0.0086 0.0086 0.000
OUT-N OUTFALL 0.08 0.08 0 00:40 0.000978 0.000978 0.000
OUT-POND OUTFALL 0.00 1.00 0 00:40 0 0.207 0.000
OUT-SE OUTFALL 0.79 0.79 0 00:40 0.014 0.014 0.000
OUT-SW OUTFALL 0.00 2.60 0 00:51 0 0.0592 0.000
BLOOM-POND STORAGE 1.12 7.83 0 00:50 0.0164 0.207 0.001
**********************
Node Surcharge Summary
**********************
Surcharging occurs when water rises above the top of the highest conduit.
---------------------------------------------------------------------
Max. Height Min. Depth
Hours Above Crown Below Rim
Node Type Surcharged Feet Feet
---------------------------------------------------------------------
BLOOM MULTI-FAMILY DEVELOPMENT - 2 Year
EPA SWMM Ver 5.2.4 Page 12
J-SDI A1-2 JUNCTION 1.20 1.481 9.019
J-SDI B-1 JUNCTION 0.39 0.470 10.030
J-SDI-A3-1 JUNCTION 0.54 0.254 10.246
J-SDMH A1-1 JUNCTION 11.39 1.411 9.089
J-SDMH A-1-3 JUNCTION 0.20 0.378 10.122
J-SDMH A-2-2 JUNCTION 1.27 0.558 9.942
*********************
Node Flooding Summary
*********************
No nodes were flooded.
**********************
Storage Volume Summary
**********************
------------------------------------------------------------------------------------------------
Average Avg Evap Exfil Maximum Max Time of Max Maximum
Volume Pcnt Pcnt Pcnt Volume Pcnt Occurrence Outflow
Storage Unit 1000 ft³ Full Loss Loss 1000 ft³ Full days hr:min CFS
------------------------------------------------------------------------------------------------
BLOOM-POND 6.839 1.6 0.0 0.0 15.604 3.6 0 02:45 1.00
***********************
Outfall Loading Summary
***********************
-----------------------------------------------------------
Flow Avg Max Total
Freq Flow Flow Volume
Outfall Node Pcnt CFS CFS 10^6 gal
-----------------------------------------------------------
OUT-EAST 91.07 0.15 1.21 0.026
OUT-EX-SITE 33.88 0.13 0.83 0.009
OUT-N 22.52 0.02 0.08 0.001
OUT-POND 97.17 0.71 1.00 0.207
OUT-SE 60.43 0.12 0.79 0.014
BLOOM MULTI-FAMILY DEVELOPMENT - 2 Year
EPA SWMM Ver 5.2.4 Page 13
OUT-SW 97.21 0.32 2.60 0.059
-----------------------------------------------------------
System 67.05 1.44 5.85 0.316
********************
Link Flow Summary
********************
-----------------------------------------------------------------------------
Maximum Time of Max Maximum Max/ Max/
|Flow| Occurrence |Veloc| Full Full
Link Type CFS days hr:min ft/sec Flow Depth
-----------------------------------------------------------------------------
GT-A-1-A CONDUIT 2.48 0 00:40 1.68 0.00 0.11
GT-A-1-B CONDUIT 1.31 0 00:43 1.60 0.00 0.08
GT-A-1-C CONDUIT 1.35 0 00:41 1.24 0.00 0.10
GT-A-1-C-1 CONDUIT 0.67 0 00:44 0.60 0.00 0.10
GT-A-1-D CONDUIT 2.50 0 00:43 1.38 0.00 0.13
GT-A-1-F CONDUIT 2.53 0 00:44 1.77 0.00 0.12
GT-A2-1-A CONDUIT 2.37 0 00:41 1.31 0.00 0.11
GT-A-B CONDUIT 0.00 0 00:00 0.00 0.00 0.03
GT-AR-A CONDUIT 0.83 0 00:41 0.94 0.01 0.20
GT-AR-B CONDUIT 2.28 0 00:47 1.23 0.03 0.28
GT-AR-C CONDUIT 2.60 0 00:51 1.13 0.04 0.30
GT-B-1-A CONDUIT 1.42 0 00:41 0.92 0.00 0.12
GT-B-1-B CONDUIT 1.41 0 00:42 1.96 0.01 0.11
GT-C-1-A CONDUIT 2.11 0 00:40 1.95 0.00 0.10
GT-C-1-B CONDUIT 1.10 0 00:42 1.06 0.00 0.09
GT-C-1-C CONDUIT 2.22 0 00:42 1.82 0.00 0.10
GT-C-1-D CONDUIT 2.24 0 00:42 1.97 0.00 0.11
GT-C-B CONDUIT 0.00 0 00:00 0.00 0.00 0.07
GT-INT-B CONDUIT 1.23 0 00:44 1.65 0.01 0.17
GT-INT-C CONDUIT 1.21 0 00:46 2.03 0.01 0.15
P-A-1 CONDUIT 1.09 0 00:42 3.68 0.09 0.54
P-A-2 CONDUIT 1.78 0 00:45 2.54 0.15 1.00
P-A2-1 CONDUIT 2.22 0 00:44 3.35 0.21 1.00
P-A2-2 CONDUIT 2.20 0 00:43 2.35 0.16 1.00
P-A2-3 CONDUIT 0.00 0 00:00 0.00 0.00 0.33
P-A2-4 CONDUIT 2.15 0 00:43 2.38 5.85 1.00
P-A-3 CONDUIT 5.30 0 00:52 3.12 0.58 1.00
BLOOM MULTI-FAMILY DEVELOPMENT - 2 Year
EPA SWMM Ver 5.2.4 Page 14
P-A-4 CONDUIT 7.49 0 00:48 4.24 0.83 1.00
P-A-5 CONDUIT 8.72 0 00:47 4.94 1.19 1.00
P-A-6 CONDUIT 5.97 0 00:47 6.58 0.12 0.38
P-A-7 CONDUIT 6.56 0 00:49 3.92 0.41 0.55
P-A-8 CONDUIT 6.56 0 00:50 3.94 0.41 0.52
P-A-UD-1 CONDUIT 2.76 0 00:47 1.62 0.05 0.93
P-A-UD-2 CONDUIT 2.74 0 00:47 3.06 5.15 1.00
P-B-1 CONDUIT 1.39 0 00:44 0.79 0.19 1.00
P-C-A CONDUIT 0.92 0 00:43 1.72 0.09 0.45
P-C-B CONDUIT 2.12 0 00:43 2.36 0.28 0.75
P-C-C CONDUIT 2.18 0 00:44 2.26 0.41 0.73
P-C-D CONDUIT 4.25 0 00:43 3.55 0.57 1.00
P-UD-A CONDUIT 1.23 0 01:23 6.27 1.86 1.00
P-UD-B CONDUIT 1.21 0 01:05 0.31 0.12 0.96
P-Z-POND-OUT CONDUIT 1.00 0 00:40 4.47 0.07 0.78
SW-B-P CONDUIT 0.00 0 00:00 0.00 0.00 0.00
SW-CHASE CONDUIT 0.40 0 00:40 1.69 0.00 0.03
SDI A1-2 ORIFICE 2.43 0 00:46 0.36
SDI B-1 ORIFICE 1.38 0 00:44 0.24
SDI C-3 ORIFICE 0.92 0 00:42
SDI-A-1-4 ORIFICE 0.63 0 00:44
SDI-A-1-5 ORIFICE 1.09 0 00:41
SDI-A3-1 ORIFICE 2.22 0 00:43 0.34
SDI-C-1 ORIFICE 2.18 0 00:44 0.33
SDI-C-3-1 ORIFICE 1.22 0 00:42
***************************
Flow Classification Summary
***************************
-------------------------------------------------------------------------------------
Adjusted ---------- Fraction of Time in Flow Class ----------
/Actual Up Down Sub Sup Up Down Norm Inlet
Conduit Length Dry Dry Dry Crit Crit Crit Crit Ltd Ctrl
-------------------------------------------------------------------------------------
GT-A-1-A 1.00 0.01 0.00 0.00 0.23 0.77 0.00 0.00 0.00 0.00
GT-A-1-B 1.00 0.03 0.00 0.00 0.60 0.37 0.00 0.00 0.00 0.00
GT-A-1-C 1.00 0.01 0.00 0.00 0.98 0.01 0.00 0.00 0.94 0.00
GT-A-1-C-1 1.00 0.01 0.06 0.00 0.93 0.00 0.00 0.00 0.96 0.00
GT-A-1-D 1.00 0.01 0.00 0.00 0.99 0.00 0.00 0.00 0.89 0.00
BLOOM MULTI-FAMILY DEVELOPMENT - 2 Year
EPA SWMM Ver 5.2.4 Page 15
GT-A-1-F 1.00 0.01 0.00 0.00 0.04 0.94 0.00 0.00 0.01 0.00
GT-A2-1-A 1.00 0.01 0.00 0.00 0.98 0.01 0.00 0.00 0.00 0.00
GT-A-B 1.00 0.01 0.99 0.00 0.00 0.00 0.00 0.00 0.00 0.00
GT-AR-A 1.00 0.01 0.00 0.00 0.99 0.00 0.00 0.00 0.96 0.00
GT-AR-B 1.00 0.01 0.00 0.00 0.99 0.00 0.00 0.00 0.94 0.00
GT-AR-C 1.00 0.01 0.00 0.00 0.99 0.00 0.00 0.00 0.01 0.00
GT-B-1-A 1.00 0.01 0.00 0.00 0.99 0.00 0.00 0.00 0.96 0.00
GT-B-1-B 1.00 0.02 0.00 0.00 0.57 0.42 0.00 0.00 0.00 0.00
GT-C-1-A 1.00 0.01 0.00 0.00 0.01 0.98 0.00 0.00 0.00 0.00
GT-C-1-B 1.00 0.01 0.01 0.00 0.98 0.00 0.00 0.00 0.98 0.00
GT-C-1-C 1.00 0.01 0.00 0.00 0.94 0.05 0.00 0.00 0.91 0.00
GT-C-1-D 1.00 0.02 0.00 0.00 0.01 0.97 0.00 0.00 0.01 0.00
GT-C-B 1.00 0.01 0.99 0.00 0.00 0.00 0.00 0.00 0.00 0.00
GT-INT-B 1.00 0.01 0.00 0.00 0.96 0.03 0.00 0.00 0.00 0.00
GT-INT-C 1.00 0.02 0.00 0.00 0.66 0.32 0.00 0.00 0.35 0.00
P-A-1 1.00 0.01 0.00 0.00 0.52 0.46 0.00 0.00 0.93 0.00
P-A-2 1.00 0.02 0.00 0.00 0.97 0.01 0.00 0.00 0.95 0.00
P-A2-1 1.00 0.02 0.00 0.00 0.77 0.21 0.00 0.00 0.04 0.00
P-A2-2 1.00 0.03 0.00 0.00 0.97 0.01 0.00 0.00 0.67 0.00
P-A2-3 1.00 0.04 0.96 0.00 0.00 0.00 0.00 0.00 0.00 0.00
P-A2-4 1.00 0.03 0.00 0.00 0.97 0.00 0.00 0.00 0.00 0.00
P-A-3 1.00 0.02 0.00 0.00 0.97 0.02 0.00 0.00 0.92 0.00
P-A-4 1.00 0.02 0.00 0.00 0.97 0.01 0.00 0.00 0.00 0.00
P-A-5 1.00 0.03 0.00 0.00 0.97 0.00 0.00 0.00 0.00 0.00
P-A-6 1.00 0.04 0.53 0.00 0.36 0.07 0.00 0.00 0.90 0.00
P-A-7 1.00 0.04 0.00 0.00 0.95 0.01 0.00 0.00 0.67 0.00
P-A-8 1.00 0.04 0.00 0.00 0.00 0.00 0.00 0.96 0.00 0.00
P-A-UD-1 1.00 0.03 0.02 0.00 0.06 0.00 0.89 0.00 0.00 0.00
P-A-UD-2 1.00 0.04 0.00 0.00 0.96 0.00 0.00 0.00 0.00 0.00
P-B-1 1.00 0.03 0.00 0.00 0.97 0.00 0.00 0.00 0.02 0.00
P-C-A 1.00 0.01 0.01 0.00 0.98 0.00 0.00 0.00 0.98 0.00
P-C-B 1.00 0.01 0.00 0.00 0.98 0.01 0.00 0.00 0.63 0.00
P-C-C 1.00 0.01 0.02 0.00 0.97 0.00 0.00 0.00 0.92 0.00
P-C-D 1.00 0.01 0.00 0.00 0.98 0.01 0.00 0.00 0.86 0.00
P-UD-A 1.00 0.04 0.00 0.00 0.28 0.68 0.00 0.00 0.00 0.00
P-UD-B 1.00 0.04 0.00 0.00 0.96 0.00 0.00 0.00 0.00 0.00
P-Z-POND-OUT 1.00 0.02 0.00 0.00 0.64 0.35 0.00 0.00 0.30 0.00
SW-B-P 1.00 1.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SW-CHASE 1.00 0.01 0.00 0.00 0.00 0.00 0.00 0.99 0.00 0.00
BLOOM MULTI-FAMILY DEVELOPMENT - 2 Year
EPA SWMM Ver 5.2.4 Page 16
*************************
Conduit Surcharge Summary
*************************
----------------------------------------------------------------------------
Hours Hours
--------- Hours Full -------- Above Full Capacity
Conduit Both Ends Upstream Dnstream Normal Flow Limited
----------------------------------------------------------------------------
P-A-2 0.01 0.01 0.20 0.01 0.01
P-A2-1 0.54 0.54 1.27 0.01 0.01
P-A2-2 1.27 1.27 1.79 0.01 0.01
P-A2-4 1.78 1.78 1.79 0.97 0.01
P-A-3 0.20 0.20 1.20 0.01 0.01
P-A-4 1.20 1.20 11.39 0.01 0.15
P-A-5 11.39 11.39 11.39 0.23 0.58
P-A-UD-1 0.01 0.01 11.37 0.01 0.01
P-A-UD-2 1.78 1.78 1.80 1.25 0.02
P-B-1 0.39 0.39 11.39 0.01 0.01
P-C-D 0.01 0.01 0.20 0.01 0.01
P-UD-A 0.91 3.22 0.95 2.57 2.82
P-Z-POND-OUT 0.01 5.26 0.01 0.01 0.01
Analysis begun on: Tue Jan 23 14:30:31 2024
Analysis ended on: Tue Jan 23 14:30:32 2024
Total elapsed time: 00:00:01
BLOOM MULTI-FAMILY DEVELOPMENT - 2 Year
EPA SWMM Ver 5.2.4 Page 17