Stormwater Tools | Laguna Channel Diversion

Treatment BMPs

Laguna Channel Diversion

Basics

Name

Laguna Channel Diversion

Type

Hydrodynamic Separator

Jurisdiction

City of Laguna Beach

Owner

City of Laguna Beach

Year Built

ID in System of Record

Water Quality
Management Plan

Has not been linked to a WQMP

Sizing Basis

Not Provided

Trash Capture Status

Partial (>5mm but less than full sizing)

Trash Capture Effectiveness

Not Provided

Required Lifespan of Installation

Unknown

Required Field Visits Per Year

Required Post-Storm Field Visits Per Year

Notes

Seasonal dry weather diversion to sewer with CDS unit.

Performance / Modeling Attributes

Attribute	Value
Watershed
Treatment Rate	0.22 cfs
Time of Concentration	60 mins
Dry Weather Flow Override?	No - As Modeled

Modeled BMP Performance

Water Balance Components	Volume (cu-ft/yr)	Percent of Inflow
To BMP		--
Treated and Discharged		%
Retained or Recycled		%
Untreated (Bypass or Overflow)		%
Pollutant	Load Reduced	Percent Reduced
Total Suspended Solids	kg	%
Total Nitrogen	kg	%
Total Phosphorous	kg	%
Fecal Coliform	billion CFUs	%
Total Copper	g	%
Total Lead	g	%
Total Zinc	g	%

Water Balance Components	Volume (cu-ft/yr)	Percent of Inflow
To BMP		--
Treated and Discharged		%
Retained or Recycled		%
Untreated (Bypass or Overflow)		%
Pollutant	Load Reduced	Percent Reduced
Total Suspended Solids	kg	%
Total Nitrogen	kg	%
Total Phosphorous	kg	%
Fecal Coliform	billion CFUs	%
Total Copper	g	%
Total Lead	g	%
Total Zinc	g	%

Water Balance Components	Volume (cu-ft/yr)	Percent of Inflow
To BMP		--
Treated and Discharged		%
Retained or Recycled		%
Untreated (Bypass or Overflow)		%
Pollutant	Load Reduced	Percent Reduced
Total Suspended Solids	kg	%
Total Nitrogen	kg	%
Total Phosphorous	kg	%
Fecal Coliform	billion CFUs	%
Total Copper	g	%
Total Lead	g	%
Total Zinc	g	%

This WQMP’s parameters have changed since the last model run; a new model run is pending to re-calculate results. Parameters for related detailed BMPs have changed since the last model run; a new model run is pending to re-calculate results. This BMP's parameters have changed since the last model run; a new model run is pending to re-calculate results.

Results last calculated at

Model results for this WQMP are awaiting calculation.

Model results for this BMP are awaiting calculation.

About Modeling BMP Performance

Images

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Location

Delineation Type

Centralized

Delineation Area

5888.47 ac

Delineation Status

Verified

Upstream BMP

Not Provided

Drainage Area Land Uses

Land Use	Area (ac)	Impervious Area (ac)
Commercial	45.44	19.66
Education	21.15	3.90
Industrial	33.15	11.17
Open Space - Forest	18.33	0.00
Open Space - Irrigated Agriculture	56.09	2.46
Open Space - Irrigated Recreation	251.52	0.22
Open Space - Low Canopy Vegetation	3,597.58	0.31
Open Space - Low Density Development	291.95	56.45
Open Space - Non-Irrigated Agriculture	0.20	0.03
Open Space - Vacant Land	0.54	0.00
Open Space - Wetlands	61.63	0.02
Residential - MultiFamily	344.09	138.68
Residential - Single Family High Density	544.44	71.65
Residential - Single Family Low Density	0.31	0.02
Transportation - Freeway	341.51	56.11
Transportation - Local Road	272.27	89.93
Transportation - Other	0.06	0.01
Utility	6.68	2.16
Water	1.56	0.00
Total	5,888.49	452.78

Field Visits

Currently viewing of Field Visits Reset Download Table

Funding Events

No Funding Events identified for this Treatment BMP

Benchmark & Threshold Values

Observation Type	Benchmark	Threshold
Material Accumulation as Percent of Total System Volume	0%	40%