20260427 10524800 1.0 FALSE FAC_Backflow 002 6310547.997817 6656376.250463 1732614.685372 2089815.599549 1 Projected GCS_North_American_1983 Linear Unit: Foot_US (0.304801) NAD_1983_StatePlane_California_V_FIPS_0405_Feet <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/10.8'><WKT>PROJCS["NAD_1983_StatePlane_California_V_FIPS_0405_Feet",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",6561666.666666666],PARAMETER["False_Northing",1640416.666666667],PARAMETER["Central_Meridian",-118.0],PARAMETER["Standard_Parallel_1",34.03333333333333],PARAMETER["Standard_Parallel_2",35.46666666666667],PARAMETER["Latitude_Of_Origin",33.5],UNIT["Foot_US",0.3048006096012192],AUTHORITY["EPSG",2229]]</WKT><XOrigin>-117608899.999593</XOrigin><YOrigin>-91881399.999762297</YOrigin><XYScale>4715.6443423006003</XYScale><ZOrigin>0</ZOrigin><ZScale>1</ZScale><MOrigin>0</MOrigin><MScale>1</MScale><XYTolerance>0.0016964807816903899</XYTolerance><ZTolerance>0.00020000000000000001</ZTolerance><MTolerance>2</MTolerance><HighPrecision>true</HighPrecision><WKID>102645</WKID><LatestWKID>2229</LatestWKID></ProjectedCoordinateSystem> 20260519 12002700 20260519 12002700 150000000 5000 ISO19139 Version 6.2 (Build 9200) ; Esri ArcGIS 10.9.1.28388 Backflow Devices 1 -118.835815 -117.684766 34.734865 33.750500 This layer depicts location and attribute data for Backflow Devices located within DPW Jurisdiction. <DIV STYLE="text-align:Left;"><DIV>This Layer represents Backflow Devices located within DPW jurisdiction. Primary use of this layer is for asset management and work order tracking within DPW’s new Asset Management System (Trimble Unity Maintain). Backflow Prevention Devices prevent contaminated water from flowing back up the pipe into clean water. Data was extracted from existing asset data contained in LA County DPW’s outgoing Maintenance Management System. Data was then updated and verified by the Building Crafts Superintendent and Senior Civil Engineer from the Operational Services Division.Notable attribute fields include:<UL><LI>CW_ASSETID: Active Unique identifiers for each asset, utilized in Trimble Unity Maintain Asset Management System.</LI><LI>FAC_NAME: Represents which facility the asset is located in (If applicable)</LI><LI>STATUS: Represents working status of the feature.<UL><LI>ACTIVE: This value is used for features currently active and in use.</LI><LI>ABANDONED: This value is used for features no longer in use and now abandoned</LI><LI>IN CONSTRUCTION: This value is used for approved features currently in construction</LI><LI>INACTIVE: This value is used for features that are currently inactive and unused</LI><LI>PROPOSED: This value is used for features that are proposed but not yet approved for construction</LI><LI>UNKNOWN: Status of the feature is currently unknown.</LI></UL></LI><LI>DESCRIPTION: Describes model, serial number, and address of feature.</LI><LI>DEVTYP: Type of prevention device (Double Check Valve, Pressure Vacuum Breaker, etc.)</LI><LI>INSTALLTYP: What type of system the device is installed in.</LI></UL>Last updated or update frequency: 2026Loaded May 2026 per Ticket #256137</DIV></DIV> Name: Nathan Lee Organization: Los Angeles County Public Works, Operational Services Division Position: Engineering Aid III Role: Point of Contact Email: nlee@dpw.lacounty.gov Address: 1525 Alcazar St City: Los Angeles State: CA Postal Code: 90033 Phone: (626)458-1700 Backflow Prevention Device Backflow Operational Services LA LA County DPW Feature Class dataset EPSG 5.3(9.0.0) 687 Simple FALSE 687 TRUE FALSE FAC_Backflow Feature Class 687 OBJECTID OBJECTID OID 4 10 0 Internal feature number. Esri Sequential unique whole numbers that are automatically generated. CW_ASSETID TUMS Asset ID String 50 0 0 MMS_ASSETID MMS Asset ID String 50 0 0 DESCRIPTION Description String 1000 0 0 STATUS Status String 255 0 0 FACNAME Facility Name String 255 0 0 BLDGNAME Building Name String 255 0 0 SERVADD Service Address String 255 0 0 H2OMETERNO Water Meter No. String 255 0 0 SERVSYST Serving System String 255 0 0 DEVLOC Device Location String 255 0 0 MANU Manufacturer String 50 0 0 MODELNO Model No. String 255 0 0 SERIALNO Serial No. String 255 0 0 DEVTYP Device Type String 100 0 0 BACKFLOW_SIZE Size String 255 0 0 ORIENTATION Orientation String 255 0 0 INSTALLTYP Installation Type String 50 0 0 INSTALLDATE Installation Date Date 8 0 0 TESTFREQ Testing Frequency String 255 0 0 LASTTESTDATE Last Test Date Date 8 0 0 NEXTTESTDATE Next Test Date Date 8 0 0 LASTREPDATE Last Repair Date Date 8 0 0 LASTREPDESC Last Repair Description String 255 0 0 HOME_UNIT Home Unit Integer 4 10 0 FULL_ADDRESS Full Address String 200 0 0 CROSSING Crossing String 200 0 0 CITY City String 50 0 0 JURISDICTION Jurisdiction String 25 0 0 CREATED_USER Created User String 255 0 0 CREATED_DATE Created Date Date 8 0 0 LAST_EDITED_USER Last Edited User String 255 0 0 LAST_EDITED_DATE Last Edited Date Date 8 0 0 PARENT_FACILITY Parent Facility String 50 0 0 COBLDGNO County Building No. String 50 0 0 GLOBALID GLOBALID GlobalID 38 0 0 SHAPE SHAPE Geometry 4 0 0 Feature geometry. Esri Coordinates defining the features. 20260519