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1516 REMINGTON ST.
Lots 3 & 4, Block 7
L C Moore’s 2nd Addition
Fort Collins, CO
Prepared for:
Beta Tau 1919 House Corporation
633 17th St, 3000
Denver, CO 80202
Date:
November 4, 2020
PRELIMINARY DRAINAGE REPORT
1516 REMINGTON ST.
FORT COLLINS, CO
i U20018_Drainage Report.docx
November 4, 2020
City of Fort Collins
Stormwater Utility
700 Wood Street
Fort Collins, Colorado 80521
RE: 1516 Remington St. Improvements
Fort Collins, Colorado
Project Number: U20018
Dear Staff:
United Civil Design Group, LLC. is pleased to submit this Preliminary Drainage Report for the 1516 Remington St. site in Fort
Collins, Colorado. In general, this report serves to document the stormwater impacts associated with the proposed
improvements related to the existing site.
We understand that review by the City of Fort Collins is to assure general compliance with standardized criteria contained in
the Fort Collins Stormwater Criteria Manual (FCSCM). 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 Fort Collins
Stormwater Criteria Manual.
If you should have any questions or comments as you review this report, please feel free to contact us at your convenience.
Sincerely,
United Civil Design Group
Colton Beck, PE Sam Eliason, PE
Project Engineer Principal
PRELIMINARY DRAINAGE REPORT
1516 REMINGTON ST.
FORT COLLINS, CO
ii U20018_Drainage Report.docx
TABLE OF CONTENTS
I. General Location and Description ...................................................................................................................................... 1
A. Location and Project Description ................................................................................................................ 1
B. Description of Property ............................................................................................................................... 2
C. Floodplains .................................................................................................................................................. 2
II. Drainage Basins and Sub-Basins ......................................................................................................................................... 3
A. Major Basin Description .............................................................................................................................. 3
B. Sub-Basin Description ................................................................................................................................. 3
III. Drainage Design Criteria ..................................................................................................................................................... 3
A. Regulations ................................................................................................................................................. 3
B. Directly Connected Impervious Area (DCIA) ............................................................................................... 3
C. Hydrological Criteria ................................................................................................................................... 3
D. Hydraulic Criteria ........................................................................................................................................ 4
E. Modifications of Criteria ............................................................................................................................. 4
IV. Drainage Facility Design ..................................................................................................................................................... 4
A. General Concept ......................................................................................................................................... 4
B. Specific Details ............................................................................................................................................ 4
V. Erosion Control ...................................................................................................................................................................
6
VI. Conclusions ........................................................................................................................................................................
7
A. Compliance with Standards ........................................................................................................................ 7
B. Drainage Concept........................................................................................................................................ 7
C. Stormwater Quality..................................................................................................................................... 7
VII. References ......................................................................................................................................................................
8
APPENDICES
APPENDIX A – Hydrology Calculations
APPENDIX B – Hydraulic Calculations
B.1 – Low Impact Development Calculations
B.2 – Water Quality Calculations
B.3 – Sidewalk Chase Calculations (Reserved for Final Submittal)
APPENDIX C – Referenced Materials
APPENDIX D – Drainage Exhibits
PRELIMINARY DRAINAGE REPORT
1516 REMINGTON ST.
FORT COLLINS, CO
1 U20018_Drainage Report.docx
I. GENERAL LOCATION AND DESCRIPTION
A. LOCATION AND PROJECT DESCRIPTION
The 1516 Remington St. property (referred herein as “the site”) exists as Lot 3 and 4, Block 7, L C Moore’s 2nd Addition, located
in the southwest quarter of Section 13, T7N, R69W of the 6th P.M., City of Fort Collins, Larimer County, Colorado. The
property, consisting of approximately 0.39 acres, is located north of East Prospect Rd and south of East Lake St. The site
currently exists as a vacant residential property with on-site parking. The proposed 1516 Remington St. improvements are
limited to approximately 0.25 acres of disturbed area.
The property is bounded by residential properties to the north and south, public right-of-way to the west (Remington St.) and
public right-of-way to the east (alleyway). Stormwater on the site currently drains to either Remington St or the alleyway,
though all stormwater eventually drains existing inlet at the intersection of Remington St. and E Lake St. Ultimately the site
drains to the Spring Creek in accordance with the City of Fort Collins Spring Creek master drainage basin.
The proposed improvements to the site consist of redesigning and reconstructing a portion of the site’s drive lane and parking
area. Improvements are proposed to associated landscaping and walks adjacent to the building. Additionally, low impact
development and water quality measures are proposed with the site improvements in the form of permeable pavers.
FIGURE 1: SITE VICINITY MAP
This drainage report presents the overall drainage plan for the development. In general, this report serves to provide an
analysis of the drainage impacts associated with the site improvements as it relates to existing and proposed drainage
features on-site.
E Prospect Rd
S College Ave
Remington St
E Lake St
PRELIMINARY DRAINAGE REPORT
1516 REMINGTON ST.
FORT COLLINS, CO
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B. DESCRIPTION OF PROPERTY
The project site currently exists as a fully developed residential lot, including concrete and asphalt pavement, sidewalks,
rooftop, and landscaping, comprising of an existing imperviousness of 51.0%. In its existing condition, by means of sheet flow,
the site ultimately drains off-site to public right-of-way west and east of the site.
Below are summaries of key components of the site in its existing conditions.
Land Use - The site’s current land use is residential.
Ground Cover - The site exists as a residential lot with concrete and asphalt pavement, sidewalk, rooftop, and
surrounding grass landscaping. The grass cover is good (ie., heavy or dense cover with nearly all ground surfaces
protected by vegetation).
Existing Topography – The site slopes in multiple directions away from the existing on-site building, however, runoff
ultimately drains west and east to an existing downstream inlet associated with Remington St.
Grades – In general, the western portion of the site is sloped westerly at approximately 1.0% to 8.0%; the eastern
portion of the site slopes easterly at approximately 1.0% to 3.0%. Public right-of-way immediately west and east of
the site conveys water to the north at approximately 1.0% to 2.5%.
Soil Type - The USDA’s Web Soil Survey shows that the site consists of “Type C” soils, namely Fort Collins loam (3%
to 5% slopes). The on-site soils provide moderate infiltration and are suitable for development.
Utilities – The following dry utility lines run along the south side of the site: gas, electric, and fiber optic. A 12” water
main exists in Remington St while a sanitary sewer main exists in an alleyway east of the site.
Drainage Features and Storm Sewer – An off-site inlet exists north of the site at the intersection of Remington St.
and E Lake St.
C. FLOODPLAINS
The 1516 Remington St. property is not in a FEMA
designated floodplain. According to the FEMA Flood
Insurance Rate Map Panel, the site is zoned as an area
outside of the 500-year floodplain. The FEMA FIRM Panel #
is 08069C0979H, effective 5/2/2012, which is included with
Appendix C.
FIGURE 2: FLOODPLAIN MAP
1516 Remington St.
PRELIMINARY DRAINAGE REPORT
1516 REMINGTON ST.
FORT COLLINS, CO
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II. DRAINAGE BASINS AND SUB-BASINS
A. MAJOR BASIN DESCRIPTION
The existing site is located within the Spring Creek master drainage basin. No known master planning improvements are
associated with or adjacent to the site.
B. SUB-BASIN DESCRIPTION
The site is not analyzed with any known drainage reports. In its improved condition, runoff from the site will largely follow
existing drainage patterns, though the area of runoff directed east to the existing alleyway is reduced. Provided the reduction
of area draining to the alleyway, a minor increase of on-site area drains westerly to Remington St.
III. DRAINAGE DESIGN CRITERIA
A. REGULATIONS
The design criteria for this study are directly from the City of Fort Collins Storm Drainage Design Criteria and Construction
Standards Manual and the Urban Storm Drainage Criteria Manuals Volumes 2, and 3 (referred to herein as USDCM).
B. DIRECTLY CONNECTED IMPERVIOUS AREA (DCIA)
With the adoption of the USDCM, the City has also adopted the “Four Step Process” that is recommended in Volume 3 of
the USDCM in selecting structural BMPs for the redeveloping urban areas. The following portions of this summary describe
each step and how it has been utilized for this project:
Step 1 – Employ Runoff Reduction Practices
The objective of this step is to reduce runoff peaks and volumes and to employ the technique of “minimizing directly
connected impervious areas” (MDCIA). This project accomplishes this by:
Routing the roof and pavement flows to permeable pavers to promote infiltration and provide water quality.
Step 2 – Provide Water Quality Capture Volume (WQCV)
The objective of providing WQCV is to reduce the sediment load and other pollutants that exit the site. For this project
WQCV is provided within permeable paver sections.
Step 3 – Stabilize Drainageways
The use of LID will help slow runoff from the site and benefit the stabilization of downstream drainageways. In addition,
this project will pay stormwater development and stormwater utility fees which the City uses, in part, to maintain the
stability of the City drainageway systems.
Step 4 – Consider Need for Site Specific and Source Control BMPs
Site specific and source control BMPs are generally considered for large industrial and commercial sites. The
redevelopment of the existing site will include multiple site specific and source controls, including:
Dedicated maintenance personnel providing landscape maintenance and snow and ice management.
C. HYDROLOGICAL CRITERIA
City of Fort Collins Rainfall Intensity-Duration-Frequency Curves, provided by Figure RA-16 of the Fort Collins Stormwater
Criteria Manual, are utilized for all hydrologic computations related to the site in its existing/historic and proposed conditions.
Since this site is relatively small and does not have complex drainage basins, the peak flow rates for design points have been
calculated based on the Rational Method as described in the USDCM and the City of Fort Collins Stormwater Criteria Manual
(FCSCM) with storm duration set equal to the time of concentration for each sub-basin. This method was used to analyze the
developed runoff from the 2-year (minor) and the 100-year (major) storm events. The Rational Method is widely accepted
PRELIMINARY DRAINAGE REPORT
1516 REMINGTON ST.
FORT COLLINS, CO
4 U20018_Drainage Report.docx
for drainage design involving small drainage areas (less than 160 acres) and short time of concentrations. Runoff coefficients
are assumed based on impervious area and are given in the Appendices.
D. HYDRAULIC CRITERIA
The developed site will convey runoff to existing public right-of-way via sheet flow. The City of Fort Collins Stormwater
Criteria Manual (FCSCM) and USDCM are referenced for all hydraulic calculations. Microsoft Excel is utilized in providing
runoff and water quality computations.
Drainage conveyance facility capacities proposed with the development project, including permeable pavers, are designed in
accordance with criteria outlined in the FCSCM and/or the Urban Drainage and Flood Control District’s Urban Storm Drainage
Criteria Manual (UDFCD).
E. MODIFICATIONS OF CRITERIA
The drainage design of the 1516 Remington St. improvements does not vary from City of Fort Collins criteria.
IV. DRAINAGE FACILITY DESIGN
A. GENERAL CONCEPT
Developed runoff is designed to largely maintain existing drainage patterns. Runoff that drains off-site is ultimately conveyed
to an existing inlet at the intersection of Remington St. and E Lake St. Per City standards, stormwater detention is not being
provided because the increase in impervious surfaces is less than 1,000 square-feet. Also per City standards, water quality
and low impact development (LID) is being proposed with project to mitigate the impervious areas that are being modified
with the development. Water quality and LID systems provided with the improvements include several permeable paver
sections around the property.
B. SPECIFIC DETAILS
Hydrology
Site improvements include an increase of approximately 796 sf of additional impervious area relative to existing conditions.
Due to the minimal impacts related to the site’s overall imperviousness (i.e. less than 1,000 sf), the proposed improvements
are not expected to negatively impact the existing nearby hydraulic features. The table on the following page summarizes
the hydrologic impact associated with the proposed site improvements relative to existing conditions. Refer to the drainage
exhibits and hydrology calculations attached for additional information.
1516 Remington St.
Existing Proposed
Overall Area (acre) 0.39 0.39
*Roof (sf) 3,687 3,717
*Asphalt (sf) 2,577 -
*Concrete (sf) 2,618 5,443
*Permeable Pavers (sf) - 1,386
*Landscape (sf) 8,118 6,454
% Imperviousness 51.0% 56.2%
Composite C2 0.62 0.65
Composite C100 0.77 0.81
TABLE 1 - HYDROLOGIC SUMMARY
PRELIMINARY DRAINAGE REPORT
1516 REMINGTON ST.
FORT COLLINS, CO
5 U20018_Drainage Report.docx
For purposes of Low Impact Development (LID) calculations, hydrology calculations related to the “modified” site area (limited
to 0.13 acres of site modifications) are included in Appendix B.
On-site Basins
The following basins provide drainage delineations for the site in its existing and improved condition. Refer to Appendix A
for hydrology computations and Appendix B for calculations related to Water Quality and Low Impact Development features.
Basin EX
Sub-basins EX1 and EX2 (see Drainage Plan attached) represent on-site drainage basins as they historically exist. These basins
divide the existing site as it related to existing grading. These basins consist of roof area, asphalt and concrete paving, and
landscaping. Runoff within these basins is conveyed to the east and west via sheet flow.
Basin PR
Sub-basins PR1 and PR2 represent on-site drainage basins related to the property in its improved condition. These basins
divide the site similar to that of existing sub-basins, though with minor changes in delineation due to proposed grading. These
basins consist of roofs, concrete, landscaping, and permeable pavers. Similar to existing conditions, runoff is conveyed to
public right-of-way via sheet flow.
Stormwater Quality & Low Impact Development (LID)
In December of 2015, Fort Collins City Council adopted the revised Low Impact Development (LID) policy and criteria which
requires developments within City limits to meet certain enhanced stormwater treatment requirements in addition to more
standard treatment techniques. The proposed development will be required to meet the newly adopted LID criteria which
requires the following:
- Treat no less than 75% of any newly added impervious area using one or a combination of LID techniques.
- Treat no less than 50% of any newly added impervious area using one or a combination of LID techniques when at
least 25% of any newly added pavement is provided with permeable pavement.
The following measures are implemented with this proposed development:
I. Permeable Pavers
Permeable pavers are a space-saving LID method used for walking and driveway surfaces. Porosity in the area between pavers
allows stormwater to drain into a subsurface storage layer for treatment and infiltration. Permeable pavers are proposed
with the site improvements in several sections, providing water quality for upstream run-on impervious areas. The inclusion
of Permeable pavers is designed to satisfy all water quality and low impact development requirements per City of Fort Collins
criteria. Water quality and LID calculations are provided in Appendix B. Below provides a summary of water quality and low
impact development calculations as they relate to City of Fort Collins criteria.
Water Quality Required:
Total New or Modified Impervious Area = 4,593 sf
Required LID Water Quality Treatment = 2,297 sf (50% minimum)
Water Quality Provided:
Permeable Pavers (Standard Water Quality & LID) = 1,386 sf
Total Impervious Area Treated = 4,754 sf
Detention
Detention is not being provided with the redevelopment of the site because the net increase in impervious surfaces is less
than 1,000 square-feet.
PRELIMINARY DRAINAGE REPORT
1516 REMINGTON ST.
FORT COLLINS, CO
6 U20018_Drainage Report.docx
Standard Operating Procedures (SOPs)
In order for physical stormwater Best Management Practices (BMPs) to be effective, proper maintenance is essential.
Maintenance includes both routinely scheduled activities, as well as non-routine repairs that may be required after large
storms, or as a result of other unforeseen problems. Standard Operating Procedures should clearly identify BMP maintenance
responsibility. BMP maintenance is typically the responsibility of the entity owning the BMP.
Identifying who is responsible for maintenance of BMPs and ensuring that an adequate budget is allocated for maintenance
is critical to the long-term success of BMPs. Maintenance responsibility may be assigned either publicly or privately. For this
project, the privately owned BMPs including grass swales and the bioretention pond, are to be maintained by the property
owner.
Storm Sewer
Aside from underdrains system associated with proposed permeable paver sections, there is no storm sewer infrastructure
provided with the site improvements.
Inlets
There are no inlets associated with the site improvements. On-site runoff is designed to drain off-site to an existing inlet at
the intersection of Remington St. and E Lake St. Minor changes in stormwater runoff to Remington St. and the east alleyway
are negligible; hydraulic calculations of off-site features are not provided with this report.
Sidewalk Chase
In an effort to prevent roof stormwater from draining across a patio designed with the site improvements, a sidewalk chase
is proposed as an alternate method of conveyance. Approximately 880 sf of roof area is designed to be conveyed to this 1-ft
wide chase. A hydraulic analysis of this sidewalk chase will be provided with a final drainage report.
V. EROSION CONTROL
Erosion control, both temporary and permanent, is a vital part of any development project. For this project, the site
disturbance is less than 1 acre; therefore, a CDPHE Stormwater Management Plan (SWMP) is not required. However,
comprehensive erosion control measures are included with the site improvements. Refer to the Utility Plans for additional
information. At a minimum, the following temporary BMP’s will be installed and maintained to control on-site erosion and
prevent sediment from traveling off-site during construction:
Silt Fence – a woven synthetic fabric that filters runoff. The silt fence is a temporary barrier that is placed at the base
of a disturbed area.
Vehicle Tracking Control – a stabilized stone pad located at points of ingress and egress on a construction site. The
stone pad is designed to reduce the amount of mud transported onto public roads by construction traffic.
Rock Socks – Similar to wattles, rock socks are designed to prevent soil and debris from draining further downstream
to storm infrastructure. They are a temporary BMP and require proper installation and maintenance to ensure their
performance.
The contractor shall store all construction materials and equipment and shall provide maintenance and fueling of equipment
in confined areas on-site from which runoff will be contained and filtered. Temporary Best Management Practices (BMP’s)
will be inspected by the contractor at a minimum of once every two weeks and after each significant storm event.
PRELIMINARY DRAINAGE REPORT
1516 REMINGTON ST.
FORT COLLINS, CO
7 U20018_Drainage Report.docx
VI. CONCLUSIONS
A. COMPLIANCE WITH STANDARDS
Storm drainage calculations have followed the guidelines provided by the Urban Storm Drainage Criteria Manuals Volumes
1, 2 and 3 and the City of Fort Collins Stormwater Criteria Manual.
B. DRAINAGE CONCEPT
The drainage system has been designed to convey the runoff to the designated design points and the existing public
infrastructure in an effective, safe manner. No negative impacts are anticipated to the City of Fort Collins Master Drainage
Plan or to downstream properties or infrastructure due to the proposed improvements.
C. STORMWATER QUALITY
Long-term stormwater quality measures in the form of permeable pavers have been selected for the site that will provide
treatment of stormwater prior it to being discharged from the site.
PRELIMINARY DRAINAGE REPORT
1516 REMINGTON ST.
FORT COLLINS, CO
8 U20018_Drainage Report.docx
VII. REFERENCES
1. City of Fort Collins Stormwater Criteria Manual, City of Fort Collins, Colorado, November 2017.
2. Urban Storm Drainage Criteria Manual Volume 1 and 2, Urban Drainage and Flood Control District, Denver, Colorado,
June 2001, Revised April 2008.
3. Natural Resources Conservation Service Web Soil Survey at: websoilsurvey.nrcs.usda.gov/app
4. Flood Insurance Rate Map, FEMA, Panel 08069C0979H, https://hazards.fema.gov/femaportal/
5. Stormwater Discharges Associated with Construction Activity, Stormwater Management Plan Preparation Guides, State
of Colorado, www.colorado.com
APPENDIX A
HYDROLOGY CALCULATIONS
RUNOFF COEFFICIENTS AND % IMPERVIOUS
1516 Remingtion St, Fort Collins, CO
Basin Design Pt.
Total Total Roof
(1)
Asphalt Concrete
(1)
Gravel
(1)
Lawns
(10(3)
Composite Effective C2 C
100
%I = 90% %I = 100% %I = 100% %I =40% %I=2% Imperviousness Impervious
C=0.95 C=0.95 C=0.95 C=0.50 C=0.25 Areas
acres sf sf sf sf sf sf (%) sf
EX-MA Modified Area 0.13 5,838 76 2,577 1,108 2,077 65.0% 3,795 0.70 0.88
EX-Site Site 0.39 17,000 3,687 2,577 2,618 8,118 51.0% 8,676 0.62 0.77
- - - - -
EX1 EX1 0.23 10,095 1,685 151 1,996 6,263 37.5% 0.52 0.64
EX2 EX2 0.16 6,905 2,002 2,426 622 1,855 70.8% 0.76 0.95
Basin Design Pt.
Total Total Roof
(1)
Asphalt Concrete
(1)
Pavers
(1)
Lawns
(10(3)
Composite Effective C2 C
100
acres sf %I = 90% %I = 100% %I = 100% %I =40% %I=2% Imperviousness Impervious
C=0.95 C=0.95 C=0.95 C=0.50 C=0.25 Areas
sf sf sf sf sf (%) sf
PR-MA Modified Area 0.13 5,838 106 3,933 1,386 413 78.6% 4,591 0.79 0.99
PR-Site Site 0.39 17,000 3,717 5,443 1,386 6,454 55.7% 9,472 0.65 0.81
PR1 PR1 0.24 10,410 1,791 2,727 388 5,504 44.2% 0.56 0.70
PR2 PR2 0.15 6,590 1,926 2,716 998 950 73.9% 0.78 0.98
30 (2,577) 2,825 1,386 (1,664) 13.6% 796
30 (2,577) 2,825 1,386 (1,664) 4.7% 796
Notes:
(1) Recommended % Imperviousness Values per Table 4.1-3 Surface Type - Percent Impervious in Fort Collins Stormwater Criteria Manual
(2) Runoff C is based Table 3.2-2. Surface Type - Runoff Coefficients and Table 3.2-3. Frequency Adjustment Factors in Fort Collins Stormwater Manual
(3) Runoff C for Lawns based off of Lawns, Clayey Soil, Avg Slope 2-7%
Difference between Proposed and Existing Modified Areas
Difference between Proposed and Existing Site
Composite Runoff Coefficients
Areas (2)
Existing Basins
Proposed Basins
Areas Composite Runoff Coefficients
(2)
Date: 10/20/2020 C:\United Civil Dropbox\Projects\U20018 - 1516 Remington St\Reports\Drainage\Calculations\U20018-Drain Calcs.xlsm
TIME OF CONCENTRATION
1516 Remingtion St, Fort Collins, CO
Basin Design Pt. Area
Initial Ground C5
(1) Length Slope ti
(2) Length Slope Cv Velocity (3) tt
(4) Check tc? Total Length tc
(5)
acres Type ft % min ft % fps min min Urban? ft min min
EX1 EX1 0.23 Roof 0.73 25 2.0% 2.7 70 7.0% 15
4.0 0.3 3.0 Yes 95 11 5.0
EX2 EX2 0.16 Roof 0.73 25 2.0% 2.7 60 2.5% 20
3.2 0.3 3.0 Yes 85 10 5.0
Basin Design Pt. Area
Initial Ground C5
(1) Length Slope ti
(2) Length Slope Cv Velocity (3) tt
(4) Check tc? Total Length tc
(5)
acres Type ft % min ft % fps min min Urban? ft min min
PR1 PR1 0.24 Roof 0.73 25 2.0% 2.7 70 7.0% 15
4.0 0.3 3.0 Yes 95 11 5.0
PR2 PR2 0.15 Roof 0.73 25 2.0% 2.7 60 3.0% 20
3.5 0.3 2.9 Yes 85 10 5.0
Notes:
(1) C5 based initial ground type and Table 6-4
(2)ti = [0.395(1.1-C5)L1/2]/S1/3, S= slope in %, L=length of overland flow (300' max urban, 500' max rural)
(3)V=KS0.5, S=watercourse slope in ft/ft, UDFCD Equation 6-4
(4)tt=L/(V*60 sec/min)
(5)tc check (for urban or developed areas only) = total length/180 + 10
(6)min tc = 5 min
Existing Basins
Proposed Basins
Initial Overland Flow Time (ti) Travel/Channelized Time of Flow (tt)
ti+tt
tc Check for Urbanized Basins
Final tc
(6)
ti+tt Final tc
(6)
Initial Overland Flow Time (ti) Travel/Channelized Time of Flow (tt) tc Check for Urbanized Basins
Date: 10/20/2020 C:\United Civil Dropbox\Projects\U20018 - 1516 Remington St\Reports\Drainage\Calculations\U20018-Drain Calcs.xlsm
RATIONAL METHOD PEAK RUNOFF
1516 Remingtion St, Fort Collins, CO
Basin Design Pt. Area Final
acre tc
(6) C2 C5 C100 I2 I5 I100 Q2 Q5 Q100
min in/hr in/hr in/hr cfs cfs cfs
EX1 EX1 0.23 5 0.52 0.52 0.64 2.85 3.97 9.95 0.34 0.47 1.49
EX2 EX2 0.16 5 0.76 0.76 0.95 2.85 3.97 9.95 0.34 0.48 1.50
0.68 2.12 2.99
Basin Design Pt. Area Final
acre tc
(6) C2 C5 C100 I2 I5 I100 Q2 Q5 Q100
min in/hr in/hr in/hr cfs cfs cfs
PR1 PR1 0.24 5 0.56 0.56 0.70 2.85 3.97 9.95 0.38 0.53 1.67
PR2 PR2 0.15 5 0.78 0.78 0.98 2.85 3.97 9.95 0.34 0.47 1.47
0.72 1.00 3.14
Existing Basins
Totals
Totals
Peak Discharge
Proposed Basins
Runoff Coefficients Rainfall Intensity Peak Discharge
RunoffIntensity Coefficients Rainfall
Date: 10/20/2020 C:\United Civil Dropbox\Projects\U20018 - 1516 Remington St\Reports\Drainage\Calculations\U20018-Drain Calcs.xlsm
APPENDIX B
HYDRAULIC CALCULATIONS
WATER QUALITY - LOW IMPACT DEVELOPMENT
1516 Remingtion St, Fort Collins, CO
Water Quality & LID Requirements
Basin Area Area Roof Asphalt Concrete Pavers
(sf) (acres) (sf) (sf) (sf) (sf)
PR-MA 5,838 0.134 106 0 3,933 1,386
Total New or Modified Impervious Area for Water Quality Treatment*: 4593 sf
50% to be treated by LID Water Quality: 2297 sf
*Impervious Areas calculated based on all of the new or modified asphalt, concrete, and roof areas and 40% of new or modified pervious paver areas
Permeable Pavers Provided (Water Quality & LID)
Permeable Paver Section #1
Paver Section Area: 220 sf
Run-on Area for Paver Section #1: 305 sf
Ratio: 1.4 : 1
Permeable Paver Section #2
Paver Section Area: 168 sf
Run-on Area for Paver Section #2: 463 sf
Ratio: 2.8 : 1
Permeable Paver Section #3
Paver Section Area: 601 sf
Run-on Area for Paver Section #3: 1418 sf
Ratio: 2.4 : 1
Permeable Paver Section #4
Paver Section Area: 396 sf
Run-on Area for Paver Section #4: 1180 sf
Ratio: 3.0 : 1
Total Water Quality Provided
Total Impervious Area Treated by Permeable Pavers: 4754 sf
Total % of Water Quality Treatment by Permeable Pavers: 103%
Date: 10/20/2020 C:\United Civil Dropbox\Projects\U20018 - 1516 Remington St\Reports\Drainage\Calculations\U20018-Drain Calcs.xlsm
APPENDIX C
REFERENCED MATERIALS
USGS The National Map: Orthoimagery. Data refreshed April 2020
National Flood Hazard Layer FIRMette
0 250 500 1,000 1,500 2,000
Feet
Ü
SEE FIS REPORT FOR DETAILED LEGEND AND INDEX MAP FOR FIRM PANEL LAYOUT
SPECIAL FLOOD
HAZARD AREAS
Without Base Flood Elevation (BFE)
Zone A, V, A99
With BFE or DepthZone AE, AO, AH, VE, AR
Regulatory Floodway
0.2% Annual Chance Flood Hazard, Areas
of 1% annual chance flood with average
depth less than one foot or with drainage
areas of less than one square mileZone X
Future Conditions 1% Annual
Chance Flood HazardZone X
Area with Reduced Flood Risk due to
Levee. See Notes.Zone X
Area with Flood Risk due to LeveeZone D
NO SCREENArea of Minimal Flood Hazard Zone X
Area of Undetermined Flood HazardZone D
Channel, Culvert, or Storm Sewer
Levee, Dike, or Floodwall
Cross Sections with 1% Annual Chance
17.5 Water Surface Elevation
Coastal Transect
Coastal Transect Baseline
Profile Baseline
Hydrographic Feature
Base Flood Elevation Line (BFE)
Effective LOMRs
Limit of Study
Jurisdiction Boundary
Digital Data Available
No Digital Data Available
Unmapped
This map complies with FEMA's standards for the use of
digital flood maps if it is not void as described below.
The basemap shown complies with FEMA's basemap
accuracy standards
The flood hazard information is derived directly from the
authoritative NFHL web services provided by FEMA. This map
was exported on 10/14/2020 at 2:40 PM and does not
reflect changes or amendments subsequent to this date and
time. The NFHL and effective information may change or
become superseded by new data over time.
This map image is void if the one or more of the following map
elements do not appear: basemap imagery, flood zone labels,
legend, scale bar, map creation date, community identifiers,
FIRM panel number, and FIRM effective date. Map images for
unmapped and unmodernized areas cannot be used for
regulatory purposes.
Legend
OTHER AREAS OF
FLOOD HAZARD
OTHER AREAS
GENERAL
STRUCTURES
United States
Department of
Agriculture
A product of the National
Cooperative Soil Survey,
a joint effort of the United
States Department of
Agriculture and other
Federal agencies, State
agencies including the
Agricultural Experiment
Stations, and local
participants
Custom Soil Resource
Report for
Larimer County
Area, Colorado
1516 Remington St
Natural
Resources
Conservation
Service
October 14, 2020
Soil Map
The soil map section includes the soil map for the defined area of interest, a list of
soil map units on the map and extent of each map unit, and cartographic symbols
displayed on the map. Also presented are various metadata about data used to
produce the map, and a description of each soil map unit.
8
9
Custom Soil Resource Report
Soil Map
4490800 4490810 4490820 4490830 4490840 4490850
4490800 4490810 4490820 4490830 4490840 4490850
493620 493630 493640 493650 493660 493670 493680 493690 493700
493620 493630 493640 493650 493660 493670 493680 493690 493700
40° 34' 6'' N
105° 4' 31'' W
40° 34' 6'' N
105° 4' 27'' W
40° 34' 4'' N
105° 4' 31'' W
40° 34' 4'' N
105° 4' 27'' W
N
Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 13N WGS84
0 20 40 80 120
Feet
0 5 10 20 30
Meters
Map Scale: 1:423 if printed on A landscape (11" x 8.5") sheet.
Soil Map may not be valid at this scale.
MAP LEGEND MAP INFORMATION
Area of Interest (AOI)
Area of Interest (AOI)
Soils
Soil Map Unit Polygons
Soil Map Unit Lines
Soil Map Unit Points
Special Point Features
Blowout
Borrow Pit
Clay Spot
Closed Depression
Gravel Pit
Gravelly Spot
Landfill
Lava Flow
Marsh or swamp
Mine or Quarry
Miscellaneous Water
Perennial Water
Rock Outcrop
Saline Spot
Sandy Spot
Severely Eroded Spot
Sinkhole
Slide or Slip
Sodic Spot
Spoil Area
Stony Spot
Very Stony Spot
Wet Spot
Other
Special Line Features
Water Features
Streams and Canals
Transportation
Rails
Interstate Highways
US Routes
Major Roads
Local Roads
Background
Aerial Photography
The soil surveys that comprise your AOI were mapped at
1:24,000.
Warning: Soil Map may not be valid at this scale.
Enlargement of maps beyond the scale of mapping can cause
misunderstanding of the detail of mapping and accuracy of soil
line placement. The maps do not show the small areas of
contrasting soils that could have been shown at a more detailed
scale.
Please rely on the bar scale on each map sheet for map
measurements.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Albers equal-area conic projection, should be used if more
Map Unit Legend
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
36 Fort Collins loam, 3 to 5 percent
slopes
0.9 100.0%
Totals for Area of Interest 0.9 100.0%
Map Unit Descriptions
The map units delineated on the detailed soil maps in a soil survey represent the
soils or miscellaneous areas in the survey area. The map unit descriptions, along
with the maps, can be used to determine the composition and properties of a unit.
A map unit delineation on a soil map represents an area dominated by one or more
major kinds of soil or miscellaneous areas. A map unit is identified and named
according to the taxonomic classification of the dominant soils. Within a taxonomic
class there are precisely defined limits for the properties of the soils. On the
landscape, however, the soils are natural phenomena, and they have the
characteristic variability of all natural phenomena. Thus, the range of some
observed properties may extend beyond the limits defined for a taxonomic class.
Areas of soils of a single taxonomic class rarely, if ever, can be mapped without
including areas of other taxonomic classes. Consequently, every map unit is made
up of the soils or miscellaneous areas for which it is named and some minor
components that belong to taxonomic classes other than those of the major soils.
Most minor soils have properties similar to those of the dominant soil or soils in the
map unit, and thus they do not affect use and management. These are called
noncontrasting, or similar, components. They may or may not be mentioned in a
particular map unit description. Other minor components, however, have properties
and behavioral characteristics divergent enough to affect use or to require different
management. These are called contrasting, or dissimilar, components. They
generally are in small areas and could not be mapped separately because of the
scale used. Some small areas of strongly contrasting soils or miscellaneous areas
are identified by a special symbol on the maps. If included in the database for a
given area, the contrasting minor components are identified in the map unit
descriptions along with some characteristics of each. A few areas of minor
components may not have been observed, and consequently they are not
mentioned in the descriptions, especially where the pattern was so complex that it
was impractical to make enough observations to identify all the soils and
miscellaneous areas on the landscape.
The presence of minor components in a map unit in no way diminishes the
usefulness or accuracy of the data. The objective of mapping is not to delineate
pure taxonomic classes but rather to separate the landscape into landforms or
landform segments that have similar use and management requirements. The
delineation of such segments on the map provides sufficient information for the
development of resource plans. If intensive use of small areas is planned, however,
onsite investigation is needed to define and locate the soils and miscellaneous
areas.
Custom Soil Resource Report
11
An identifying symbol precedes the map unit name in the map unit descriptions.
Each description includes general facts about the unit and gives important soil
properties and qualities.
Soils that have profiles that are almost alike make up a soil series. Except for
differences in texture of the surface layer, all the soils of a series have major
horizons that are similar in composition, thickness, and arrangement.
Soils of one series can differ in texture of the surface layer, slope, stoniness,
salinity, degree of erosion, and other characteristics that affect their use. On the
basis of such differences, a soil series is divided into soil phases. Most of the areas
shown on the detailed soil maps are phases of soil series. The name of a soil phase
commonly indicates a feature that affects use or management. For example, Alpha
silt loam, 0 to 2 percent slopes, is a phase of the Alpha series.
Some map units are made up of two or more major soils or miscellaneous areas.
These map units are complexes, associations, or undifferentiated groups.
A complex consists of two or more soils or miscellaneous areas in such an intricate
pattern or in such small areas that they cannot be shown separately on the maps.
The pattern and proportion of the soils or miscellaneous areas are somewhat similar
in all areas. Alpha-Beta complex, 0 to 6 percent slopes, is an example.
An association is made up of two or more geographically associated soils or
miscellaneous areas that are shown as one unit on the maps. Because of present
or anticipated uses of the map units in the survey area, it was not considered
practical or necessary to map the soils or miscellaneous areas separately. The
pattern and relative proportion of the soils or miscellaneous areas are somewhat
similar. Alpha-Beta association, 0 to 2 percent slopes, is an example.
An undifferentiated group is made up of two or more soils or miscellaneous areas
that could be mapped individually but are mapped as one unit because similar
interpretations can be made for use and management. The pattern and proportion
of the soils or miscellaneous areas in a mapped area are not uniform. An area can
be made up of only one of the major soils or miscellaneous areas, or it can be made
up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example.
Some surveys include miscellaneous areas. Such areas have little or no soil
material and support little or no vegetation. Rock outcrop is an example.
Custom Soil Resource Report
12
Larimer County Area, Colorado
36—Fort Collins loam, 3 to 5 percent slopes
Map Unit Setting
National map unit symbol: 2yqpg
Elevation: 4,800 to 5,900 feet
Mean annual precipitation: 13 to 15 inches
Mean annual air temperature: 48 to 50 degrees F
Frost-free period: 135 to 150 days
Farmland classification: Prime farmland if irrigated
Map Unit Composition
Fort collins and similar soils: 80 percent
Minor components: 20 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Fort Collins
Setting
Landform: Alluvial fans, terraces
Landform position (three-dimensional): Tread
Down-slope shape: Linear, convex
Across-slope shape: Linear
Parent material: Pleistocene or older alluvium and/or eolian deposits
Typical profile
Ap - 0 to 5 inches: loam
Bt1 - 5 to 8 inches: clay loam
Bt2 - 8 to 18 inches: clay loam
Bk1 - 18 to 24 inches: loam
Bk2 - 24 to 80 inches: loam
Properties and qualities
Slope: 3 to 5 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Runoff class: Low
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high
(0.20 to 2.00 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 12 percent
Maximum salinity: Nonsaline to very slightly saline (0.1 to 2.0 mmhos/cm)
Available water capacity: High (about 9.1 inches)
Interpretive groups
Land capability classification (irrigated): 4e
Land capability classification (nonirrigated): 4e
Hydrologic Soil Group: C
Ecological site: R067BY002CO - Loamy Plains
Hydric soil rating: No
Custom Soil Resource Report
13
Minor Components
Table mountain
Percent of map unit: 15 percent
Landform: Stream terraces, alluvial fans
Landform position (three-dimensional): Tread
Down-slope shape: Linear
Across-slope shape: Linear
Ecological site: R067BY036CO - Overflow
Hydric soil rating: No
Larim
Percent of map unit: 5 percent
Landform: Alluvial fans
Down-slope shape: Linear
Across-slope shape: Linear
Ecological site: R067BY063CO - Gravel Breaks
Hydric soil rating: No
Custom Soil Resource Report
14
References
American Association of State Highway and Transportation Officials (AASHTO).
2004. Standard specifications for transportation materials and methods of sampling
and testing. 24th edition.
American Society for Testing and Materials (ASTM). 2005. Standard classification of
soils for engineering purposes. ASTM Standard D2487-00.
Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of
wetlands and deep-water habitats of the United States. U.S. Fish and Wildlife
Service FWS/OBS-79/31.
Federal Register. July 13, 1994. Changes in hydric soils of the United States.
Federal Register. September 18, 2002. Hydric soils of the United States.
Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric
soils in the United States.
National Research Council. 1995. Wetlands: Characteristics and boundaries.
Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service.
U.S. Department of Agriculture Handbook 18. http://www.nrcs.usda.gov/wps/portal/
nrcs/detail/national/soils/?cid=nrcs142p2_054262
Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for
making and interpreting soil surveys. 2nd edition. Natural Resources Conservation
Service, U.S. Department of Agriculture Handbook 436. http://
www.nrcs.usda.gov/wps/portal/nrcs/detail/national/soils/?cid=nrcs142p2_053577
Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of
Agriculture, Natural Resources Conservation Service. http://
www.nrcs.usda.gov/wps/portal/nrcs/detail/national/soils/?cid=nrcs142p2_053580
Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and
Delaware Department of Natural Resources and Environmental Control, Wetlands
Section.
United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of
Engineers wetlands delineation manual. Waterways Experiment Station Technical
Report Y-87-1.
United States Department of Agriculture, Natural Resources Conservation Service.
National forestry manual. http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/
home/?cid=nrcs142p2_053374
United States Department of Agriculture, Natural Resources Conservation Service.
National range and pasture handbook. http://www.nrcs.usda.gov/wps/portal/nrcs/
detail/national/landuse/rangepasture/?cid=stelprdb1043084
15
United States Department of Agriculture, Natural Resources Conservation Service.
National soil survey handbook, title 430-VI. http://www.nrcs.usda.gov/wps/portal/
nrcs/detail/soils/scientists/?cid=nrcs142p2_054242
United States Department of Agriculture, Natural Resources Conservation Service.
2006. Land resource regions and major land resource areas of the United States,
the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook
296. http://www.nrcs.usda.gov/wps/portal/nrcs/detail/national/soils/?
cid=nrcs142p2_053624
United States Department of Agriculture, Soil Conservation Service. 1961. Land
capability classification. U.S. Department of Agriculture Handbook 210. http://
www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcs142p2_052290.pdf
Custom Soil Resource Report
16
APPENDIX D
DRAINAGE EXHIBITS
LEGEND
BUILDING/ROOF AREA
ASPHALT
CONCRETE
PROPERTY BOUNDARY
LIMITS OF MODIFIED
IMPERVIOUS AREA
LIMITS OF MODIFIED
IMPERVIOUS AREA
1516 REMINGTON ST
REMINGTON ST
PATH:
0' 20' 40'
SCALE: 1" = 20'
10'
C:\UNITED CIVIL DROPBOX\PROJECTS\U20018 - 1516 REMINGTON ST\CADD\ET\EXISTING IMPERVIOUS EXHIBIT.DWG DRAWING NAME: EXISTING IMPERVIOUS EXHIBIT SHEET SIZE: 11 x 17
1516 REMINGTON STREET
EXISTING SITE IMPERVIOUS AREA EXHIBIT
DATE: October 26, 2020 PREPARED FOR: BETA TAU 1919 HOUSE CORP. JOB NUMBER: U20018 NOTE: THIS EXHIBIT WAS PREPARED FOR INFORMATION ONLY AND THE ENGINEER PREPARING THESE PLANS WILL NOT
BE RESPONSIBLE FOR UNAUTHORIZED USE OF THEM.
19 OLD TOWN SQUARE, # 238 FORT COLLINS, CO 80524
(970) 530-4044 WWW.UNITEDCIVIL.COM
SHEET 1 OF 2
UNITED CIVIL
Design Group LLC
NORTH
BASIN
AREAS COMPOSITE EFFECTIVE COMPOSITE FRUNOFF COEFFICIENTS
TOTAL TOTAL ROOF ASPHALT CONCRETE GRAVEL LAWNS IMPERVIOUSNESS IMPERVIOUS
%I = 0% %I = 100% %I = 100% %I =0% %I=2% (%I) AREAS C2
C100
(ACRES) sf sf sf sf sf sf
EX-SITE 0.39 17,000 3,687 2,577 2,618 8,118 51.0% 8,676 0.62 0.77
Compact Compact Compact Compact
Compact Compact
Compact
LEGEND
BUILDING/ROOF AREA
ASPHALT
CONCRETE
PROPERTY BOUNDARY
LIMITS OF MODIFIED
IMPERVIOUS AREA
LIMITS OF MODIFIED
IMPERVIOUS AREA
1516 REMINGTON ST
PERMEABLE PAVERS
REMINGTON ST
PATH:
0' 20' 40'
SCALE: 1" = 20'
10'
C:\UNITED CIVIL DROPBOX\PROJECTS\U20018 - 1516 REMINGTON ST\CADD\ET\PROPOSED IMPERVIOUS EXHIBIT.DWG DRAWING NAME: PROPOSED IMPERVIOUS EXHIBIT SHEET SIZE: 11 x 17
1516 REMINGTON STREET
PROPOSED SITE IMPERVIOUS AREA EXHIBIT
DATE: October 27, 2020 PREPARED FOR: BETA TAU 1919 HOUSE CORP. JOB NUMBER: U20018 NOTE: THIS EXHIBIT WAS PREPARED FOR INFORMATION ONLY AND THE ENGINEER PREPARING THESE PLANS WILL NOT
BE RESPONSIBLE FOR UNAUTHORIZED USE OF THEM.
19 OLD TOWN SQUARE #238, FORT COLLINS, CO 80524
(970) 530-4044 WWW.UNITEDCIVIL.COM
SHEET 2 OF 2
UNITED CIVIL
Design Group LLC
NORTH
BASIN
AREAS COMPOSITE EFFECTIVE COMPOSITE FRUNOFF COEFFICIENTS
TOTAL TOTAL ROOF ASPHALT CONCRETE PAVERS LAWNS IMPERVIOUSNESS IMPERVIOUS
%I = 0% %I = 100% %I = 100% %I =0% %I=2% (%I) AREAS C2
C100
(ACRES) sf sf sf sf sf sf
PR-SITE 0.39 17,000 3,717 5,443 1386 6,454 55.7% 9,471 0.65 0.81
Compact Compact Compact Compact
Compact Compact
Compact
REMINGTON STREET
(104' R.O.W)
1504 REMINGTON STREET
1520 REMINGTON STREET
EXISTING BUILDING
1516 REMINGTON STREET
EXISTING ALLEY
EXISTING
DRIVEWAY
R.O.W LINE
FFE=5003.30
FFE=5001.63
FFE=5003.30
PR1
0.24 0.56
0.70
EX1
0.23 0.52
0.64
EX2
0.16 0.76
0.95
PR2
0.15 0.78
0.98
PERMEABLE PAVER
SECTION 1
PERMEABLE PAVER
SECTION 2
PERMEABLE PAVER
SECTION 3
PERMEABLE
PAVERSECTION 4
BETA TAU 1919 HOUSE CORP. 11/4/2020
U20018
1" = 10'
1" = N/A
1516 REMINGTON STREET
NORTH
11/3/2020 3:36:52 PM
C:\UNITED CIVIL DROPBOX\PROJECTS\U20018 - 1516 REMINGTON ST\CADD\CP\C5.00_DRAINAGE PLAN.DWG
C5.00_DRAINAGE PLAN
CDB CDB
C5.00
8
DRAINAGE PLAN
0 10' 20'
SCALE: 1" = 10'
5'
PREPARED FOR:
JOB NUMBER
SHEET NUMBER
OF SHEETS
DATE SUBMITTED:
VERTICAL:
HORIZONTAL:
SCALE
PRELIMINARY
PLANS
NOT FOR CONSTRUCTION
PROJ. MGR:
DRAWING NAME:
PATH:
DATE: TIME: DESIGNER:
The engineer preparing these plans will not be responsible for, or liable for, unauthorized
changes to or uses of these plans. All changes to the plans must be in writing and must
be approved by the preparer of these plans.
NO. BY DATE
CAUTION
REVISIONS:
CIVIL ENGINEERING & CONSULTING
UNITED CIVIL
Design Group
19 OLD TOWN SQUARE #238
FORT COLLINS, CO 80524
(970) 530-4044
www.unitedcivil.com
8
CHECKED BY:
CHECKED BY:
CHECKED BY:
CHECKED BY:
APPROVED:
CHECKED BY:
EXISTING BASIN DESIGNATION
BASIN AREA (ACRE)
2 - YR RUNOFF COEFF.
100 - YR RUNOFF COEFF.
FLOW DIRECTION
LEGEND
EXISTING BASIN BOUNDARY
PROPOSED BASIN BOUNDARY
PERMEABLE PAVEMENT TREATMENT AREA
X.XX
XX.X X.XX
X PROPOSED BASIN DESIGNATION
BASIN AREA (ACRE)
2 - YR RUNOFF COEFF.
100 - YR RUNOFF COEFF.
X
XX.X X.XX
X.XX
DRAINAGE SUMMARY
Basin
Area
%I C2 C
100
Q2 Q
100
(acre) (cfs) (cfs)
Existing Basins
EX1 0.23 37.5% 0.52 0.64 0.34 1.49
EX2 0.16 70.8% 0.76 0.95 0.34 1.50
Proposed Basins
PR1 0.24 44.2% 0.56 0.70 0.38 1.67
PR2 0.15 73.9% 0.78 0.98 0.34 1.47
WATER QUALITY SUMMARY
WATER QUALITY REQUIREMENT:
TOTAL NEW OR MODIFIED IMPERVIOUS AREA = 4,593 SF
REQUIRED LID WQ TREATMENT = 2,297 SF (50% MIN)
WATER QUALITY PROVIDED:
PERMEABLE PAVERS (LID) = 4,754 SF
accurate calculations of distance or area are required.
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: Larimer County Area, Colorado
Survey Area Data: Version 15, Jun 9, 2020
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: Aug 11, 2018—Aug
12, 2018
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
Custom Soil Resource Report
10
OTHER
FEATURES
MAP PANELS
8
B
20.2
The pin displayed on the map is an approximate
point selected by the user and does not represent
an authoritative property location.
1:6,000
105°4'48"W 40°34'19"N
105°4'11"W 40°33'52"N