>This product is for informational purposes and may not have been prepared for or be suitable for legal, engineering, or surveying purposes. It does not represent an on-the-ground survey and represents only the approximate relative location of property boundaries. >Utility data does have an attribute field "Update Source." Within that field it may state "UNCONFIRMED EXISTING" which means that it came from geo-referenced (rubber-sheeted) hand drawn maps that date back to the 1960s. These were not always drawn to scale and one map may have had a different scale than the next making it difficult to represent its true location. Within that same field it may also state one of the following: PDF-AS-BUILT-HQ-W/COORDINATES, PDF-AS-BUILT- MANUALLY-GEOREFERENCED, CAD-HQ-W/PROJECTION, CAD-MANUALLY-GEOREFERENCED, CAD-MANUALLY-GEOREFERENCED, PDF-AS-BUILT-COGO, PDF-AS-BUILT-COGO-AERIAL-CONFIRM, CAMERA LOCATE, GPS-MAP-GRADE, GPS+/-3FT, or finally GPS- SURVEY-GRADE. "GPS-SURVEY-GRADE" does not by any means guarantee the assets locational accuracy, it only signifies that the asset was GPSed in using a device capable of getting down to 1-2 centimeter accuracy. Whether or not the GPS was operating at that detail cannot be spatially guaranteed it only assures city staff that we can quickly find and respond to our assets out in the field. >This data and/or map was prepared by the city of Tyler and may be revised by the city without notification to any user. Although this data/map is based on the latest information available to the city of Tyler, no warranty, guarantee, or representation is made by the city of Tyler as to the absolute correctness or sufficiency of any representation contained in this map. The user is encouraged to check with the city to verify that the data/map being used is the latest, most currently available. (903)531-1257. >To call for city of Tyler utility locates dial (903)531-1285. CALL BEFORE YOU DIG 811 for all other utilities. >All of our GIS layers are as follows: Projected Coordinate System: NAD_1983_StatePlane_Texas_North_Central_FIPS_4202_Feet Projection: Lambert_Conformal_Conic False_Easting: 1968500.00000000 False_Northing: 6561666.66666667 Central_Meridian: -98.50000000 Standard_Parallel_1: 32.13333333 Standard_Parallel_2: 33.96666667 Latitude_Of_Origin: 31.66666667 Linear Unit: Foot_US Geographic Coordinate System: GCS_North_American_1983 Datum: D_North_American_1983 Prime Meridian: Greenwich Angular Unit: Degree It is up to the customer to verify the spatial data via the projection file (.prj).