HomeMy WebLinkAboutSPOONS-LIGHTFIELD ENTERPRISES, INC. - PDP/FDP - FDP150003 - SUBMITTAL DOCUMENTS - ROUND 1 - CITY STAFFTable 1— Routine Storm Sewer Line Maintenance
Required Action
Maintenance Obiective
Freguencv of Action
Use a video camera to inspect the
Routine -Annual inspection of
condition of the storm sewer
hydraulic and structural facilities.
Line Inspections
pipes. Cleanout pipes as needed.
Also check for obvious problems
If the integrity of the pipe is
during routine maintenance visits,
compromised, then repair the
especially for plugging of outlets.
damaged section(s).
Inspect and clean inlet weirs and
Routine — Annual inspection of
Inlet Inspections
boxes of any debris.
inlets to ensure proper operation
and prevent plugging.
Riprap Outlet Protection
Maintain riprap (rock) storm
Routine — Annual inspection of
Inspections
sewer outlet protection to ensure
riprap to replace dislodged stones,
proper operation.
remove debris, etc.
Rain Garden Maintenance Plan
Table 1 — Routine EDB Maintenance (Summary from Table EDB-1, Chapter 6 of UDFCD)
Required Action
Maintenance Obiective
Frequency of Action
Occasional mowing to limit
unwanted vegetation. Maintain
Lawn mowing and Lawn care
irrigated turf grass as 2 to 4 inches
Routine - Depending on aesthetic
tall and non -irrigated native turf
requirements.
grasses at 4 to 6 inches.
Removal of sediment, debris, and
Routine - Including just before
Sediment, Debris, and Litter
litter from the entire pond to
annual storm seasons (April and
removal
minimize outlet clogging and
May), end of storm season after
improve aesthetics.
leaves have fallen, and following
significant rainfall events.
Non -routine - Performed when
sediment accumulation occupies 20
percent of the WQCV. This may vary
Major Pond Sediment removal*
Remove accumulated sediment from
considerably, but expect to do this
the bottom of the basin.
every 10 to 20 years, as necessary per
inspection if no construction activities
take place in the tributary watershed.
More often if they do.
Inspect basins to insure that the basin
continues to function as initially
intended. Examine the outlet for
Inspections
clogging, erosion, slumping,
Every two to five years.
excessive sedimentation levels,
overgrowth, embankment and
spillway integrity and damage to any
structural element.
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STANDARD OPERATING PROCEDURES (SOPs)
Lightfield Enterprises, Fort Collins, CO .
A. PURPOSE
In order for physical stormwater Best Management Practices (BMPs) to be effective, proper
maintenance is critical. 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 (SOPS) 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 shown in
Section B below are to be maintained by the property owner, homeowner's association (HOA), or
property manager.
B. BMPS SUBJECT TO SOP REQUIREMENTS
The following stormwater facilities contained within the Aspen Heights Fort Collins project are
subject to SOP requirements:
- Rain Garden Detention Basin (RG)
- Storm Sewers and Tree Roots
The location of said facilities can be found on the Site Plan, Landscape Plans, and Utility Plans for
Lightfield Enterprises.
C. SITE -SPECIFIC STANDARD OPERATING PROCEDURES
Inspection and maintenance procedures and frequencies, specific maintenance requirements and
activities, as well as BMP-specific constraints and considerations shall follow the guidelines outlined
in volume 3 of the Urban Drainage and Flood Control District (UDFCD) Urban Storm Drainage
Criteria. Manual, latest revision. The Storm Sewer maintenance procedures follow. The Storm Sewer
Lines (Table 1) and Extended Detention Basin (Table 2) maintenance plans are as follows:
Storm Sewer Lines Maintenance Plan
The storm sewer lines are located in close proximity to many trees. The situation is unavoidable;
therefore, special maintenance has been identified to ensure these storm drain systems perform as
they were designed. In addition, Inlets and outlet rip -rap will need to be maintained.
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