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Sewers not maintained by Los Angeles County
Abstract: City Sanitary and Private Sewers not Maintained by LA County. Purpose: To identify nearby private and city sanitary sewers that county sewer crews do not maintain Data can be downloaded...
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Sanitary Sewers Maintained by the Los Angeles County Sewer Maintenance...
Abstract: Sanitary Sewers Maintained by the Los Angeles County Sewer Maintenance Districts (SMD). Purpose: Identifies sanitary sewers (gravity sewers, siphons and force mains) maintained by the...
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Soil Types
Abstract: A polygon layer showing soil types in Los Angeles County. This layer shows the delineation and the county soil number (2-180). These soils have runoff coefficient curves associated with them...
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Los Angeles County Parks
Abstract: Parks maintained by Los Angeles County Department of Parks & Recreation. Purpose: For general mapping use. Data can be downloaded here
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Direction of flow within Sub Watersheds
Abstract: Direction of water flow between sub watersheds (or watershed sub basins). Data can be downloaded here
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Los Angeles County Libraries
Abstract: Location of Community Libraries that provide service to residents living in the Los Angeles County Unincorporated areas and residents of 51 of the 88 incorporated cities of Los Angeles...
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ALERT(Automatic Local Evaluation in Real Time)/Automatic rain gages
Abstract: The location of the ALERT(Automatic Local Evaluation in Real Time)/Automatic rain gages; These sites use tipping buckets with real-time data telemetry and/or electronic data loggers to...
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Ground Water Basins
Abstract: This represents the groundwater basins and sub-basins as defined by the California Department of Water Resources. Groundwater basins are designated on the basis of geological and...
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Watershed Management Area
Abstract: Watershed Management Area. Based on sub-watershed boundaries, which were digitized by Public Works from USGS quads. Purpose: To determine subareas within NPDES Municipal Stormwater Permit...
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Water Purveyor Service Areas
Abstract: This layer is a representation of the Water Purveyor Service Areas within Los Angeles County. Purpose: General mapping, long term water supply planning, and to aid in emergency management...
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Stream Gage Locations
Abstract: Stream Gage locations. Purpose: General mapping use Data can be downloaded here
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Rainfall Intensity
Abstract: This data set depicts Los Angeles County precipitation intensity for 24-hour events and return periods of 50 years. Purpose: Display and/or analyses requiring precipitation intensity for...
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Manually Observed Non-Mechanical Rain Gages
Abstract: Location of manually Observed Non-Mechanical Rain Gages; These gages are measured once daily by volunteers and reported monthly. Purpose: For calculating rainfall totals and intensity...
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Debris Potential Areas
Abstract: Los Angeles Basin, Santa Clara River Basin, and Antelope Valley are divided into zones that yield similar volumes of sediment under similar conditions. These are called Debris Potential Area...
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Los Angeles County Boundary
Abstract: Los Angeles County Boundary Purpose: General mapping use Data can be downloaded here
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DPW Index Map Grid
Abstract: This is the grid used to create the Los Angeles County cadastral database. The grids are 15,000 feet high and 20,000 wide. Purpose: Base map for the cadastral database Data can be...
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Los Angeles County Road Maintenance District Boundary
Abstract: Areas maintained by Los Angeles County Department of Public Works – Road Maintenance Division. Purpose: General mapping use Data can be downloaded here
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Flood Maintenance District Boundary
Abstract: Areas maintained by the Los Angeles County Flood Maintenance District. Purpose: General mapping use Data can be downloaded here
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County Lighting Maintenance District
Abstract: County Lighting Maintenance District shows the boundaries where Los Angeles County Traffic & Lighting Division maintains the street lights. Data can be downloaded here
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Seawater Barriers
Abstract: The Los Angeles County Department of Public Works operates and maintains three seawater barriers along Los Angeles County’s coastline. Often unnoticed because of their underground nature,...
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