HomeMy WebLinkAboutFile Documents.211 Cottonwood Ln.0062.2019 (17).ARBK
________________________________________________________________________________________________________
826 ½ Grand Avenue, Glenwood Springs, CO 81601
P: 970.945.5544 F: 970.945.5558 www.mountaincross-eng.com
May 10, 2019
Mr. Sam Barney
211 Cottonwood Lane
Aspen, CO 81611
RE: Urban Runoff Management Plan – Barney Residence, 211 Cottonwood Lane
Dear Mr. Barney:
The purpose of this correspondence is to evaluate the reconstruction of the residence at 211
Cottonwood Lane, from a storm water perspective and provide design recommendations pertaining
to urban runoff management for incorporation into the site design. These recommendations were
generated from the site plans that were submitted to our office and a site visit performed on July
17, 2018. Attached are plan sheets that show the design recommendations and details. Also
attached are the drainage calculations that were generated.
The project is at elevation of approximately 7935 feet above sea level and is in the Smuggler
Trailer park subdivision. An existing residence exists on the project site. The project proposes to
raze the existing building and construct a new residence. Ultimately runoff from the site will travel
to the Roaring Fork River through a series of roadside conveyances and storm drain appurtenances.
Runoff from snowmelt is typically very large in volume but because it happens over a much longer
time period, the peak flows are usually less than a rainfall event. Also, the Urban Runoff
Management Plan states that they are not necessary at this time. Therefore storm water is defined
in this study to be surface water that is a direct result from a rainfall event.
No major irrigation structures cross the site. To our knowledge, no drainage reports specific to
211 Cottonwood Lane have been done prior. The project is located greater than 100’ from any
mapped floodplain boundaries.
Storm water from the site is evaluated in accordance with the standards of applicable sections of
the City of Aspen, Urban Runoff Management Plan (Code). All flows are listed in units of cubic
feet per second (cfs) unless otherwise noted.
Methodology
The design of a drainage plan begins with a calculation of the flowrate of water that will be
produced from a rainfall event. Since the watershed basins are small (less than 90 acres), per the
Code, the Rational method was used for estimating the amount of runoff that will occur. This
method calculates runoff (Q) in cubic feet per second (cfs) from basin area (A) in acres, runoff
coefficient (C), and rainfall intensity (I) in inches per hour:
Q = C * I * A
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211 Cottonwood Lane
May, 2019
Page 2 of 5
Mountain Cross Engineering, Inc.
Civil and Environmental Consulting and Design
826 ½ Grand Avenue, Glenwood Springs, CO 81601
P: 970.945.5544 F: 970.945.5558 www.mountaincross-eng.com
When acres and inches per hour are used as the units, the conversion into cubic feet per second is
1.008 but is usually ignored and it has been here. The runoff coefficient is a dimensionless
coefficient.
Basin Area
Drainage basins have the characteristic that any precipitation falling within that area will
drain to the same point of discharge. The project basins were delineated from project
topography, project site plan, and building architecture.
Runoff Coefficient
A runoff coefficient is assigned to each basin that gives a relationship between the amount
of precipitation that becomes surface water and the amount of water that is lost to
infiltration, evaporation, or transpiration. The runoff coefficient is a function of drainage
basin soil types, surface area, and/or land-use. Because the land-use and the surface cover
often vary through the project, a composite coefficient is often assigned to each drainage
basin, based on the weight of the areas and their respective coefficients.
Rainfall Intensity
Rainfall intensity is determined from intensity duration frequency curves, or IDF curves.
IDF curves are graphs of, more or less parallel, frequency curves that yield rainfall
intensities based on storm durations.
Frequency: The return frequency of a rainfall storm is the statistical probability
that a given storm event will occur on average in a given period. For instance a 100-
year storm has the statistical probability of occurring once in a 100 year span or it
has a 1% chance of occurring in any given year. It is important to emphasize that
it is based on probability statistics and therefore does not reflect actual storm
frequency. Storms of a 100-year magnitude can occur in sequential years, even in
the same year. The return frequency of design is chosen and then referred to as the
design storm.
Duration: The duration of a storm is chosen to coincide with the time of
concentration. Per the Code, the FAA Overland flow equation was used to estimate
the time of concentration. The parameters needed to determine the flow elements
include length, slope, and the Rational runoff coefficient. The theory states that if
the duration is equal to the time of concentration, the length of time will be adequate
for the entire basin to contribute flow.
Analysis
Project basins were delineated based on a site visit to review existing conditions, aerial
photography, roof lines, site grading, roads, project topography, and proposed and existing
buildings. The site has Cottonwood Lane with a storm drain system and curb inlet to the south.
05/15/2019
211 Cottonwood Lane
May, 2019
Page 3 of 5
Mountain Cross Engineering, Inc.
Civil and Environmental Consulting and Design
826 ½ Grand Avenue, Glenwood Springs, CO 81601
P: 970.945.5544 F: 970.945.5558 www.mountaincross-eng.com
To the west and east are adjacent residences with a zero setback from the property lines. The
property to the north trespass flow onto the subject property. The general topography of the site
has north to south flow direction into Cottonwood Lane. This defines the one drainage basin that
was delineated and remains the same for existing and proposed.
The existing property is largely impervious and has a roof, shed, flagstone patio, and asphalt
parking area. Landscaped areas make up the rest.
The proposed residence proposes to use a green roof and largely replace the hardscape and
flagstone with permeable pavers. The smaller portion of the roof will be solar panels. Roof gutters
will have downspouts that will discharge onto the permeable pavers. Runoff has been directed as
surface flow over permeable surfaces rather than impervious conveyances.
Runoff coefficients were determined based on site soils and percentage imperviousness, per the
appropriate figures in the Code. Permeable pavers and the green roof were assumed to be 50%
impervious. The hydrologic soil group was determined from Figure 3.1 and based on the project
location is, “C”. Based on the corresponding Figure 3.3 the applicable coefficients were
determined and are shown in the attached calculations. The parameters for calculating the time of
concentration were determined from the site, slope, length, and land uses. The time of
concentrations for the site basins that were used are between 7 and 11 minutes. The calculations
are attached. The rainfall intensities were determined by using the appropriate storm curve,
duration to match the time of concentration, and the IDF curve provided in the Code for the City
of Aspen.
The basin flow rates were calculated based on the Rational Method described in the Code for the
historic, existing, and proposed conditions. The calculations are:
Basin Area Coefficient Flow
Description (acres) (cfs)
Historic - 100 yr 0.122 0.50 0.28
Existing - 100 yr 0.122 0.63 0.42
Proposed 100 yr 0.122 0.61 0.39
Due to the proactive effort to reduce impervious areas, proposed flows decrease from the existing
condition. Since the Smuggler Trailer Park is in an unresolved area as far as capacity of storm
drain system is concerned, the City has required detention. The detention volume was calculated
from the FAA Procedure described in the Code. Due to the increase of proposed flows from the
historic condition, the detention volume that is required is 64 cubic feet. The Owner intends to
offset detention volume by providing rain barrels per the amount allotted by House Bill 16-1005
of 110 gallons, or 14.7 cubic feet. Rain barrels fill during a storm and capture the first 110 gallons
of runoff. Larger storm events that exceed 110 gallons would overflow. The water stored in the
rain barrels would typically be emptied manually between storms as needed for watering plants.
This would drop the detention requirements to 49.3 cubic feet that will be provided in the
permeable pavers discussed under the “Water Quality” section. The calculations are attached.
Rain barrels will be emptied within 72 hours following a storm event.
05/15/2019
211 Cottonwood Lane
May, 2019
Page 4 of 5
Mountain Cross Engineering, Inc.
Civil and Environmental Consulting and Design
826 ½ Grand Avenue, Glenwood Springs, CO 81601
P: 970.945.5544 F: 970.945.5558 www.mountaincross-eng.com
Water Quality
The Code requires that Water Quality Capture Volume (WQCV) be provided. For the project, the
permeable pavers are proposed to provide the WQCV. Downspouts from roof gutters should be
directed onto the permeable pavers.
The WQCV was calculated based on the site acreage and percent impervious area. Based on Fig
8.13 in the Urban Runoff Management Plan the watershed inches is determined based on the
percentage of effective impervious area determined from the type of drainage system that is
tributary to the impervious areas. Level 1 adjustment was used to determine the “Effective
Impervious Area” from Fig 8.14. Based on the Effective Imperviousness of 51%, this yields 0.07
watershed-inches. Using the basin area of 0.122 acres, this yields 31.0 cubic feet of WQCV. The
WQCV structure of permeable pavers is 925 square feet with 8” of sand assuming a 30% void
ratio. This volume of the voids is 185 cubic feet which is much larger than the required 31 cubic
feet of WQC volume and also provides enough volume to capture the required 64 cubic feet of
detention. If the capacity of the WQCV is exceeded, the excess runoff would overtop the curb and
flow into the existing storm system in the adjacent Cottonwood Lane. Calculations are attached.
Temporary structures are intended to be used during construction activities. Temporary erosion
control measures that are to be employed during construction have been designed to contain
sediment on the site and to mitigate erosion from construction activities. Silt fencing is placed
around the downhill limits of disturbance and inlet protection is placed at the storm drain on the
street.
Permanent erosion control measures are revegetation of disturbed areas, and design of
conveyances to prevent erosion. Additionally, the Code requires a Water Quality Capture Volume
(WQCV) per the Figures 8.13 and 8.14. The site will disturb less than one acre and therefore will
not require a permit from CDPHE.
Maintenance
Maintenance will be required periodically for the drainage system. At a minimum the following
should be done bi-annually in the spring and fall: swales, roof gutters, downspouts, and the
permeable pavers should be cleaned and cleared of mud and debris.
The green roof will need to be inspected weekly to verify plant health during the growing season;
and adequate water will need to be applied to plants when necessary. It will need to be inspected
monthly for weed intrusion and any non-intended plants removed. The associated drainage system
will need to be inspected, cleaned, and repaired. Also, follow the manufacturer’s specific
maintenance plan.
Temporarily, the general notes require the maintenance and frequent inspection of the silt fence.
Attached in the Appendix is a Maintenance Plan that should be used by the Owner.
Rain barrels will be emptied within 72 hours following a storm event.
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Site
Location
Area
H
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Area
E
Area
P
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DRAINAGE CALCULATIONS for
211 Cottonwood Lane
9/25/2018
Drainage Area :Historic
Surface description:Unimproved
PROPERTY GENERAL SURFACE DATA
Total Drainage Area: 5,320 sq. ft. 0.122 ac.
RUNOFF COEFFICIENT
imperviousness =0%
HSG =C from Fig 3.3
C100 = 0.50
C10 = 0.25
C5 = 0.15
C2 = 0.05
100% 0.122
TOTAL BASIN ACERAGE 0.122
TIME OF CONCENTRATION
Overland Flow Time Length Slope C5 Tc
Upstream Elevation 7938.00 50 0.020 0.15 9.65
Dnstream Elevation 7937.00
Channel Flow Time Length Slope K Tt
Upstream Elevation 7937.00 75.0 0.027 7.000 1.09
Dnstream Elevation 7935.00
Total 10.74 min
RUNOFF
Historic
Intensity Flowrate
(in/hr) (cfs)
2-yr Storm 1.5 0.01
10-yr Storm 2.7 0.08
100-yr Storm 4.6 0.28
NOTES:
-Soils are hydrologic soil group C from Figure 3.1
-K = 7.0 based on lawn
05/15/2019
DRAINAGE CALCULATIONS for
211 Cottonwood Lane
9/25/2018
Drainage Area :Existing
Surface description:Landscaping, roof area, and hardscape
PROPERTY GENERAL SURFACE DATA
Total Drainage Area: 5,320 sq. ft. 0.122 ac.
RUNOFF COEFFICIENT sq. ft. or
Land Use est. %acres imperviousness =62%
Building Roof 2547 0.058 HSG =C from Fig 3.3
Ponds 0 0.000 C100 = 0.63
Hardscape and Paving 735 0.017 C10 = 0.52
Landscaped turf and planters 2,038 0.047 C5 = 0.48
Pine and Aspen 0% 0.000 C2 = 0.43
Sage and Grasses 0% 0.000
TOTAL BASIN ACERAGE 0.122
TIME OF CONCENTRATION
Overland Flow Time Length Slope C5 Tc
Upstream Elevation 7938.00 50 0.020 0.48 6.30
Dnstream Elevation 7937.00
Channel Flow Time Length Slope K Tt
Upstream Elevation 7937.00 75.0 0.027 7.000 1.09
Dnstream Elevation 7935.00
Total 7.39 min
RUNOFF
Proposed
Intensity Flowrate
(in/hr) (cfs)
2-yr Storm 1.8 0.09
10-yr Storm 3.2 0.20
100-yr Storm 5.5 0.42
NOTES:
-Soils are hydrologic soil group C from Figure 3.1
-K = 7 based on gravel channel
05/15/2019
DRAINAGE CALCULATIONS for
211 Cottonwood Lane
10/19/2018
Drainage Area :Proposed
Surface description:Landscaping, roof area, and pavers
PROPERTY GENERAL SURFACE DATA
Total Drainage Area: 5,320 sq. ft. 0.122 ac.
RUNOFF COEFFICIENT sq. ft. or
Land Use est. %acres imperviousness =51%
Impervious Roof (Solar Panels) 1652 0.038 HSG =C from Fig 3.3
Green Roof 1050 0.024 C100 = 0.61
Permeable Pavers 1073 0.025 C10 = 0.47
Hardscape 0 0.000 C5 = 0.40
Landscaped turf and planters 1,545 0.035 C2 = 0.31
Sage and Grasses 0% 0.000
TOTAL BASIN ACERAGE 0.122
TIME OF CONCENTRATION
Overland Flow Time Length Slope C5 Tc
Upstream Elevation 7938.00 50 0.020 0.40 7.11
Dnstream Elevation 7937.00
Channel Flow Time Length Slope K Tt
Upstream Elevation 7937.00 75.0 0.027 7.000 1.09
Dnstream Elevation 7935.00
Total 8.20 min
RUNOFF
Proposed
Intensity Flowrate
(in/hr) (cfs)
2-yr Storm 1.7 0.064
10-yr Storm 3.0 0.172
100-yr Storm 5.2 0.387
NOTES:
-Soils are hydrologic soil group C from Figure 3.1
-K = 7 based on gravel channel
-Imperviousness assmes 50% of area for green roof and permeable pavers
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WQC Volume
Level 1: Over permeable pavers
Tot Imp =51 %
from Fig. 8.14 yields
Eff Imp = 41 %
from Fig. 8.13 yields
WQCV = 0.07 watershed-in
Area = 0.122 acres
Req'd Volume =31.0 cubic feet
05/15/2019
DETENTION CALCULATIONS
10/19/2018
Area = 0.122 acres
Tc = 8.2 minutes
Release rate = 0.28 cfs
C100 = 0.61
Duration I Release Volume Inflow Volume Volume Difference
(min.) (in./hr.) (ft3) (ft3) (ft3)
5 6.30 111 142 31
10 4.60 153 207 54
15 3.80 195 257 62
20 3.20 237 288 51
25 2.70 279 304 25
30 2.20 321 297 -24
35 2.10 363 331 -32
40 1.90 405 342 -63
45 1.70 447 344 -102
50 1.60 489 360 -129
55 1.40 531 347 -184
60 1.20 573 324 -249
Maximum Volume Difference = Required Detention = 62 Cubic Feet
Release rate = 0.08 cfs
C10 = 0.470
Duration I Release Volume Inflow Volume Volume Difference
(min.) (in./hr.) (ft3) (ft3) (ft3)
5 3.70 32 64 32
10 2.70 44 94 50
15 2.20 56 114 59
20 1.90 68 132 64
25 1.60 80 139 59
30 1.40 92 146 54
35 1.30 104 158 54
40 1.20 116 167 51
45 1.10 128 172 44
50 1.00 140 173 34
55 0.90 152 172 20
60 0.80 164 167 3
Maximum Volume Difference = 64 Cubic Feet
100-yr Detention
10-yr Detention
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______________________________________________________________________________________________________
826 ½ Grand Avenue, Glenwood Springs, CO 81601
P: 970.945.5544 F: 970.945.5558 www.mountaincross-eng.com
Maintenance Plan
The following is a checklist to aid the Property Owner of ongoing drainage system maintenance
for 211 Cottonwood Lane in Aspen CO. The site proposes drainage by gravity over impervious
areas such as a green roof and permeable pavers prior to discharge to an existing storm sewer
system. The site will require more frequent cleaning of sediment initially. As the site matures,
maintenance should be performed after large magnitude rainfall events and at the changing of the
seasons. This is not intended to be an all-inclusive list:
Drainage Swales:
• Verify positive drainage and grade any ponding areas to drain
• Clean out swales from deposited sediment and debris
Permeable Pavers and Curb and Gutter:
• Clean off deposited sediment and debris
• Check for and fill any cracks
• Repair and/or replace broken and damaged items
Roof Gutters, Downspouts, and Rain Barrels:
• Clear of debris
• Clear piping of any obstructions
• Clean deposited mud and debris
• Check that daylight ends are clear
• Check any exposed piping for UV degradation and cracking and repair as necessary
Green Roof:
• Inspect weekly to verify plant health during the growing season
• Provide adequate water to plants when necessary
• Inspect monthly for weed intrusion and remove any non-intended plants
• Inspect and verify correct operation of drainage appurtenances
• Clean drainage appurtenances of deposited mud and debris
• Follow manufacturers component specific maintenance plan
Heat Tape and Snowmelt:
• Check for correct operation in pipes, roof gutters, and downspouts and repair as necessary
• Check for correct operation in snowmelt area and repair as necessary
• Turn on heat tape for cold seasons and turn off for warm seasons
Overall:
• Check site for differential settlement creating any areas of ponding and grade to drain
• Correct locations where runoff may breach and bypass the drainage system
05/15/2019
Colorado Division of Water Resources
1313 Sherman Street, Suite 821
Denver, Colorado 80203
www.water.state.co.us
303-866-3581
June 2016
Rainwater Collection Information Table
Pursuant to legislation passed in 2016 (House Bill 16-1005), many Colorado residents are able to
collect rainwater in up to two rain barrels with a combined storage capacity not to exceed 110
gallons for outdoor uses. But did you know that residents with certain types of water wells
may also be able to collect rainwater for the uses allowed on their well permit? These
residents may be able to have additional rain barrels pursuant to Senate Bill 09-080.
The table below provides examples of how different residences in Colorado may be able to
collect rainwater. Additional information about rainwater collection in Colorado can be found on
page 3 of this document and on Division of Water Resources’ (DWR) website at
www.water.state.co.us/SurfaceWater/RainwaterCollection.
Your water supply
scenario:
Can I use rain
barrels as allowed
under HB16-1005*?
(Limit of two rain
barrels with a
combined storage
capacity not to
exceed 110 gal.)
Can I have additional rain barrels in
accordance with SB09-080**?
(Note that a Precipitation Collection
Permit is required before you start
collecting water in these additional rain
barrels!)
A single family house on tap
water Yes No
2 to 4 unit multi-family
building (apartments or
condominiums) with tap
water
Yes, 110 gallons per
building No
5 or more unit multi-family
building (apartments or
condominiums) with tap
water
No No
Townhome (one residence in
a row of residences joined by
common side walls) on tap
water
Yes, 110 gallons per
residence No
05/15/2019
Colorado Division of Water Resources: Rainwater Collection Information Table Page 2/3
Your water supply
scenario (continued):
Can I use rain
barrels as allowed
under HB16-1005*?
(Limit of two rain
barrels with a
combined storage
capacity not to
exceed 110 gal.)
Can I have additional rain barrels in
accordance with SB09-080**?
(Note that a Precipitation Collection
Permit is required before you start
collecting water in these additional rain
barrels!)
A single family house on an
exempt/small capacity
domestic well that has a
permit for some combination
of: inside uses in up to three
single-family dwellings, up to
one acre of residential lawn
and garden, domestic animal
watering (such as horses),
and livestock watering
Yes
Yes, additional rainwater may be captured
for those outdoor and indoor uses that are
allowed on the well permit *
A single family house on an
exempt/small capacity
household use only well
Yes
Yes, additional rain barrels are allowed to
capture water for household purposes
inside the dwelling. However, only the 110
gallons allowed under HB16-1005 may be
collected for outdoor uses*
A single family house on tap
water- there is an old
exempt/small capacity well
(drilled prior to May 8, 1972)
that we still use to water the
lawn
Yes No
A single family house on a
well that is operated
pursuant to a Plan for
Augmentation (non-
exempt/large capacity well)
Yes No
A single-family house with an
unpermitted well that has
been in use since prior to
May 8, 1972. The well
continues to be used for the
house and yard.
Yes
Maybe. You will need to apply to register
your well first. If DWR is able to approve a
residential well permit, and you are not in
a water service area, you could capture
water for purposes allowed by your new
well permit*
A single-family house with a
residential well but the
permit number or permit
type is unknown
Yes
Maybe. It will depend on the well permit
and other sources of water supply. You can
look up your well permit through DWR’s
Well Permit Search. If you’re having
trouble finding your permit please contact
DWR via the information on page 3.
05/15/2019
Colorado Division of Water Resources: Rainwater Collection Information Table Page 3/3
Rainwater Collection Information Table: Additional Information
Exempt Wells versus Non-Exempt Wells
The table on pages 1 and 2 reference “exempt/small capacity wells” and “non-exempt/large capacity wells”.
What is an exempt/small capacity well versus a non-exempt/large capacity well and which type do I have?
● Exempt/small capacity wells are often residential wells that serve no more than three single family
dwellings. Exempt/small capacity wells typically have a five or six digit permit number and do not have
a suffix (other than “-A” in the case of replacement wells).
● Non-exempt/large capacity wells often have a “-F” and/or “-R” at the end of the permit number.
● See the Guide to Well Permits, Water Rights, and Water Administration for more details on
exempt/small capacity and non-exempt/large capacity wells.
*HB16-1005: Concerning the use of rain barrels to collect precipitation from a residential rooftop
for nonpotable outdoor uses (effective August 10, 2016)
Who can collect water under this law: Any single family residence or multi-family residence with 4 or
fewer units. Each home in a row of homes joined by common side walls, such as duplexes, triplexes, or
townhomes, is considered a single family residence.
Do I need a permit through DWR before I start collecting precipitation? No permit or other approval is
required for capture and use of precipitation in rain barrels with a combined storage capacity of 110
gallons in accordance with HB 16-1005.
Where can I collect the water from: From the roof of a building that is used primarily as a residence.
How much water can I collect: You can fill and refill two rain barrels with a combined storage capacity
up to 110 gallons throughout the year.
What can I collect the water in: Water must be collected in rain barrels (up to 110 gallon total
capacity) with sealable lids
What can I use the water for: Outdoor uses, such as lawn and garden irrigation, on the property where
the water was collected. The water cannot be used for drinking water or indoor household purposes.
Will standing water in the rain barrels create a mosquito problem? Rain barrels must have sealable
lids to prevent insects or other pests from using the stored water. See the Colorado Department of
Public Health and Safety’s website for more information.
**SB09-080: Concerning limited exemptions for water collected from certain residential rooftops
Who can collect water under this law (SB 09-080): Any residence that has, or can qualify for, an
exempt residential well permit through DWR. This law operates independently of HB16-1005.
If I do not have a well or well permit, how do I know if my property qualifies for a well permit: This
will be determined by the Division of Water Resources when you apply for the required precipitation
collection permit.
Do I need a permit through DWR before I start collecting precipitation? Yes, before you begin to
collect precipitation in connection with an exempt well permit, you need to obtain a rooftop
precipitation collection permit. Check out the Rainwater Collection on Properties with Residential Wells
Fact Sheet and the Application for Rooftop Precipitation Collection System Permit for more information.
Where can I collect the water from: From the roof of a building that is used primarily as a residence.
How much water can I collect: There is no limit to the amount of water you can collect, so long as you
are collecting the water from the roof of a building that is used primarily as your residence.
What can I collect the water in: Rain barrels or other types of water storage structures. Be sure to still
follow best practices for mosquito management.
What can I use the water for: Those residential uses that are allowed on the exempt well permit, which
may include both indoor and outdoor uses, depending on the well permit.
Other important information:
o If the residence is served by a water system (such as a water tap from a municipal provider or a
shared well) that supplies more than three single family dwellings, then precipitation collection
is not allowed under this law.
o Please review the above information on SB09-080 before completing and submitting an
Application for a Rooftop Precipitation Collection System Permit. If your well has not been
registered, you will also need to Register an Existing Well before applying.
Have additional questions? Send an AskDWR request or call DWR’s Ground Water Information Desk
between 9am and 4pm Monday through Friday at (303) 866-3587.
05/15/2019
Capacity 55 gallons 208 litres
Height 34 inches 86 cm
Width 24 inches 61 cm
Ship Weight 1103 pounds 500 Kg
Ship Qty 52 per pallet 52 per pallet
48"x48"x80" 122cmx122cmx244cm
Included
Accessories
Options
Insect resistant
stainless steel screen
Higher spigot
accommodates most
watering cans
Overflow to 2nd barrel
or splashpad Resilient faucet/spigot
Easy multi-barrel
installations
Stable footprint and
childproof lid
Contact
Basil Thompson
Office 1 877-634-9777
Cell 415-413-0642, 416-317-3398
E-mail basil@enviroworld.us
International Headquarters
7003 Steeles Ave. W., Unit 6
Toronto, ON Canada M9W 0A2
Tel 416-674-0033 Fax 416-679-0368
Toll-free 877-634-9777 solutions@enviroworld.us
www.enviroworld.net
Installation instructions, spigot,
screws, overflow hose and clamp
Sticker/hotstamp branding and
custom colors available
The FreeGarden™ RAIN 55 gallon rain barrel is
designed with the homeowner/gardener in mind;
affordable, attractive, easy to move, easy to install,
and easy to use.
With as many as three bins easily fitting in the back
seat of a regular sedan, the average buyer doesn’t
need to arrange special transport.
The barrel’s square shape is ideal for attractive flushto-
wall and corner installations.
The tall spigot placement accommodates most
watering cans, and four additional spigot mount
points are provided lower on the barrel.
Manufactured with a maximum of recycled content
(varying by color option), the FreeGarden™ RAIN
contains enough virgin resin to ensure optimal
product durability and lifespan.
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