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Kern County, California land parcels, 2009

Identification Information
Citation
Originator
Kern County Assessor's Office, Assessment Standards Division, Mapping Section.
Publication Date
20091101
Title
Kern County, California land parcels, 2009
Edition
2009 Final
Geospatial Data Presentation Form
vector digital data
Publication Information
Publication Place
90 Throckmorton Ave, #26, Mill Valley, CA, 94941, US
Publisher
Boundary Solutions, Inc.
Online Linkage
https://figgy.princeton.edu/downloads/a11a0ba9-6f3b-4083-bf5a-cead1357e1f9/file/5c0cec62-d439-42ad-b05d-cefd385792be
Abstract
This feature class contains land parcel boundaries delineated for property tax assessment purposes. Parcels are modeled as planimetric polygons in a seamless fabric comprising the spatial extent of the County of Kern, in the State of California, as of 2009.
Purpose
This data is intended to provide a reasonable representation of parcels, as defined for property tax assessment purposes, that can be used easily in a computerized geographic information system. Includes all private (taxable), state utility, and other governmental (tax exempt) land interests listed on the secured tax roll, but does not include segregated mineral rights, mobilehomes, or unsecured taxable entities. This data is not intended to replace the hardcopy assessment maps or any other official or unofficial county maps, and it is not to be construed as portraying legal ownership or divisions of land for purposes of zoning or subdivision law.
Temporal Extent
Currentness Reference
Version date.
Time Instant
20091101
Bounding Box
West
-120.194369
East
-117.616518
North
35.798393
South
34.788580
Theme Keyword
parcels
tax parcels
property maps
land use
cadastral maps
assessment
assessor
lot
ownership
cadastre
cadastral
tax
property
parcel
value
land value
agriculture
Theme Keyword Thesaurus
General
Theme Keyword
planningCadastre
Theme Keyword Thesaurus
ISO 19115 Topic Categories
Place Keyword
California
Kern County
Kern
Bakersfield
Arvin
Delano
McFarland
Maricopa
Wasco
California City
Tehachapi
San Joaquin Valley
Ridgecrest
Shafter
Taft
Place Keyword Thesaurus
None
Temporal Keyword
Access Restrictions
SUMMARY: This disclaimer statement requires the data recipient to receive the data "as is" with no warranty, and to hold all data providers not liable for any losses or damages caused by, or resulting from, use of the data. The statement also requires the data recipient to not distribute any portion of the data without a copy of this disclaimer statement. Whereas the Kern Geographic Information Network (Kern GEONET) and its members and other agencies have developed digital geographic data herein referred to as "the Data." Whereas the entity or entities acquiring a copy of the Data are herein referred to as "the Recipient." Whereas the Kern Geographic Information Network and its members, the County of Kern, and other agencies that have developed and contributed the Data which is being transmitted to the Recipient by these agencies are herein referred to as "the Data Providers." I. DISCLAIMER OF LIABILITY AND WARRANTIES: A. The Recipient understands and agrees that it is possible that errors and omissions will occur in data input or programming done by the Data Providers to provide the data in the form desired. The Recipient further understands and agrees that it is probable that errors and omissions will occur in record keeping processes, especially when large numbers of records are developed and maintained, and that data may not meet the Recipient's standards as to accuracy or completeness. Notwithstanding, the Recipient agrees to take the data "as is", fully expecting that there may be errors and omissions associated with the data. B. The Recipient further understands and agrees that the Data Providers make absolutely no warranty whatsoever, whether expressed or implied, as to the accuracy, thoroughness, value, quality, validity, merchantability, suitability, condition or fitness for a particular purpose of the data or any programming used to obtain the data, nor as to whether the data are error-free, up-to-date, complete or based upon accurate or meaningful facts. C. The Recipient further understands and agrees that it will forever waive any and all rights, claims, causes of action or other recourse that it might otherwise have against the Data Providers for any injuries or damages of any type, whether direct, indirect, incidental, consequential or otherwise, resulting from any error or omission in the data or in any programming used to obtain the data, or in any manner arising out of or related to this agreement or the data provided hereunder. The Recipient agrees that the Data Providers shall not be liable to the Recipient for any liability, claim, loss, damage, injury or expense of any kind caused or alleged to be caused, directly or indirectly, by the inadequacy of data obtained from the Data Providers, by any deficiency of the Data Providers or the Recipient systems, by any delay or failure to provide any service, or by any other interruption, disruption or loss of the Recipient operations. II. INDEMNIFICATION: A. The Recipient agrees that it will provide no copy or partial copy of any data to any other party, including consultants under contract with The Recipient, without disclosing that the copy or partial copy was obtained from the Data Providers and without attaching the Disclaimer of Liability and Warranties paragraph. B. The Recipient hereby agrees to defend, save, hold harmless and indemnify the Data Providers and signatories to its data sharing agreements and its/their officers, employees and agents against claims by anyone for any loss, injury, damage, risk, cause of action, or liability of any type (including legal fees) incurred by the Recipient or any other person, relating to or arising out of the subject matter of this agreement, or which may be alleged to have been caused, either directly or indirectly, by the acts, conduct, omissions, negligence or lack of good faith of the Data Providers, their officers, agents or employees.
Use Restrictions
Refer to the disclaimer statement in the 'Access Constraints' element of the 'Resource Constraints' section of this document. Data are licensed for Princeton University-affiliated persons only.
Status
Complete
Maintenance and Update Frequency
Unknown
Point of Contact
Contact Organization
Kern County Assessor's Office, Assessment Standards Division, Mapping Section.
Delivery Point
1115 Truxtun Avenue
Delivery Point
Attn: Jim Isbell
Delivery Point
Kern County Assessor
City
Bakersfield
State
California
Postal Code
93301
Country
US
Contact Telephone
(661) 868-3376
Contact Telephone
(800) 552-5376
Contact Facsimile Telephone
(661) 868-3303
Contact Electronic Mail Address
isbellj@co.kern.ca.us
Hours of Service
Monday - Friday, 8:00am - 5:00pm Pacific Time
Point of Contact
Contact Organization
Map and Geospatial Information Center, Lewis Library, Princeton University
Delivery Point
Map and Geospatial Information Center, Lewis Library, Princeton University
City
Princeton
State
NJ
Postal Code
08544
Country
US
Contact Telephone
609-258-1097
Credit
This dataset was originally compiled by the Kern County Assessor, in May 2001, from two different sources. The Kern Council of Governments provided the VWGIS data for the entire county; the City of Bakersfield provided the original COBGIS data for the metropolitan Bakersfield area, and continues to share data on an ongoing basis.
Native Data Set Environment
Microsoft Windows Vista Version 6.0 (Build 6001) Service Pack 1; Esri ArcGIS 10.2.0.3348
Data Quality Information
Attribute Accuracy Report
Attribute values are originally hand-typed into the system during normal daily updates, and are therefore prone to error. APN values are rigorously tested using various procedures designed to detect as many errors as possible, so most errors are corrected before the data is released. Even though it is not possible to guarantee 100% accuracy (due to the nature of the data as well as human factors and process limitations), we are confident that the attributes contained in this dataset are represented with a very high degree of accuracy overall.
Quantitative Attribute Accuracy Assessment
Logical Consistency Report
Topological integrity (the spatial coincidence of vertices along the edges of adjacent features) is believed to be excellent, although not perfect. All data is maintained as a Line feature class with topology rules enforced. The APN attribute is stored in a centroid (Point) feature class. Geoprocessing tools are used to generate polygons from the lines, which are then spatially joined with the points to transfer the APN attributes to the polygons, which are then tested with a series of Error Detection and Correction (EDC) procedures. EDC is designed to test line integrity, line attributes, point attributes, and line topology before polygons are even created. Then, after polygons are created, the polygons are tested for overlaps, slivers, APN database parity, and centroid parity. There is a specific type of logical topology error that has been observed, but cannot be tested with EDC procedures. This type of error manifests as two adjacent parcels separated by a thin sliver that joins with a road or canal corridor at one end. This type of gap is difficult to find and correct because it does not form a closed loop or boundary, and therefore does not generate a polygon sliver that can be discovered based on its own characteristics or non-parity with other objects. The exact number of such gaps is not known, but is believed to be very small based on our own observations. The width of such a gap is also believed to be very small, likely well under 1 foot per occurrence.
Completeness Report
This parcel shapefile is believed to be 100% complete, but completeness is not guaranteed. The assessor's tax roll database is used as the authoritative object in the process of testing the GIS parcel polygons for completeness. Unfortunately, its schema is highly complex, it is inadequately documented, it suffers from certain legacy data conversion issues, and it endures poor data entry standards, resulting in certain ambiguities and limitations in the data. It also contains many different types of taxable entities, including those that correspond to mapped parcel boundaries, but also including business properties and equipment, aircrafts, boats, mobilehomes, and various other entities that are assessed for taxes yet do not correspond to mapped parcel boundaries. Since only a subset of these taxable entities are modeled in this GIS dataset as mapped parcel boundaries, a query has been devised by the assessor's mapping staff to filter the database to produce a suitable recordset that can be subsequently joined/linked to the parcel polygons modeled in this GIS dataset. The query has been reasonably well researched and designed in order to extract all possible records which should theoretically be represented by mapped parcel polygons, but for the reasons stated above we cannot guarantee 100% completeness. After filtering the tax roll database, a two-part "parity test" is performed: The first part compares the tax roll database to the parcel polygons, to detect APN values that exist in the tax roll database but are in fact missing from the polygon dataset. The second part compares the parcel polygons to the tax roll database, to detect polygons having APN values that are invalid (due to data entry errors and APN value changes that failed to get applied). These errors and omissions are then corrected and the parity test is performed again, until all possible corrections have been made and perfect parity is achieved between the parcel polygons and the tax roll database.
Horizontal Positional Accuracy Report
Positional accuracy varies by region, usually about 10 feet or better in urban areas, and up to 50 feet (or more) in the mountains and other rural areas where horizontal control is less reliable due to poor availability of geodetic or survey data. Horizontal control is provided primarily by the Public Land Survey System (PLSS) comprised of Townships, Ranges, and Sections. PLSS datasets are provided by the Kern County Department of Engineering and Survey Services (ESS). Parcels are always created and maintained in direct relation to the PLSS control data, which is also subject to errors and inaccuracies, so the accuracy of the parcels can only be as accurate as the section corners that they are tied to. This dataset does not contain any attributes or other indications of positional accuracy. It was compiled by the assessor's staff from two different sources in 2001. Since both of the original data sources contained widespread accuracy problems, some parcels are misrepresented in geometric shape for various reasons. The assessor's staff is continually improving the accuracy and overall data quality. Three essential aspects of accuracy for tax assessment purposes include 1) the number of segments comprising a parcel's boundary and each segment's length and angle according to legally recorded source documents; 2) modification of a parcel's boundary due to encumbrances such as roads, canals, and easements that affect the property owner's fair use of the property; and 3) the position of a parcel boundary relative to benchmark features having known coordinates (such as section corners). The assessor's geodatabase actually contains quality codes which are used by mapping staff in the production process, but those codes are not transferred to this polygon dataset, which is a derivative product. The exact number of parcels that are geometrically misrepresented (shaped incorrectly) is unknown, but approximately 15 percent of the line segments are known to be reasonably accurate and the accuracy of the remaining 85 percent is unknown.
Lineage
Source
Originator
City of Bakersfield GIS Division
Title
City of Bakersfield GIS
Geospatial Data Presentation Form
vector digital data
Online Linkage
http://www.bakersfieldgis.us
Source Scale Denominator
1
Type of Source Media
CD-ROM
Contribution
Parcels within the Metropolitan Bakersfield 2010 General Plan boundary.
Source
Originator
Kern Council of Goverments
Originator
Merced County Association of Governments
Title
Valley-Wide GIS Project
Geospatial Data Presentation Form
vector digital data
Online Linkage
http://www.kerncog.org
Source Scale Denominator
1
Type of Source Media
CD-ROM
Contribution
Parcels covering entire county, digitized from scanned photocopies of assessment maps.
Spatial Data Organization Information
Direct Spatial Reference Method
Vector
Point and Vector Object Information
SDTS Terms Description
SDTS Point and Vector Object Type
GT-polygon composed of chains
Point and Vector Object Count
398642
Spatial Reference Information
Horizontal Coordinate System Definition
Geographic
Latitude Resolution
8.9831528411952133e-009
Longitude Resolution
8.9831528411952133e-009
Geographic Coordinate Units
Decimal Degrees
Geodetic Model
Horizontal Datum Name
D North American 1983
Ellipsoid Name
GRS 1980
Semi-major Axis
6378137.0
Denominator of Flattening Ratio
298.257222101
Entity and Attribute Information
Entity Type
Entity Type Label
kernparcels2009final
Entity Type Definition
A "parcel" is an area of land in one ownership and one general use.
Entity Type Definition Source
California State Board of Equalization. Assessors' Handbook Section 215.
Attributes
Shape
Feature geometry. (Coordinates defining the features.)
Definition Source
ESRI
SHAPE_SQFT
Area of feature in square feet (approximate). (4 to 349930213)
Definition Source
Calculated from feature geometry.
APN
Assessor's Parcel Number. (Assessor's Parcel Numbering System.California State Board of Equalization. Assessors' Handbook Section 215.)
Definition Source
California State Board of Equalization. Assessors' Handbook Section 215.
APN2
APN without punctuation and/or another indexing field in GIS.
Definition Source
NPDP Standard Extended Attribute Table Format
STATE
State.
Definition Source
NPDP Standard Extended Attribute Table Format
COUNTY
County name.
Definition Source
NPDP Standard Extended Attribute Table Format
FIPS
Unique number assigned to county by Census.
Definition Source
NPDP Standard Extended Attribute Table Format
SIT_HSE_NU
House number.
Definition Source
NPDP Standard Extended Attribute Table Format
SIT_DIR
Street direction.
Definition Source
NPDP Standard Extended Attribute Table Format
SIT_STR_NA
Street name.
Definition Source
NPDP Standard Extended Attribute Table Format
SIT_STR_SF
Street suffix.
Definition Source
NPDP Standard Extended Attribute Table Format
SIT_FULL_S
Full street address.
Definition Source
NPDP Standard Extended Attribute Table Format
SIT_CITY
Situs city name.
Definition Source
NPDP Standard Extended Attribute Table Format
YEAR_BUILT
Year built.
Definition Source
NPDP Standard Extended Attribute Table Format
STD_LAND_U
Standardized land use code.
Definition Source
NPDP Standard Extended Attribute Table Format
LOT_SIZE
Lot size or area [in acres].
Definition Source
NPDP Standard Extended Attribute Table Format
BLDG_AREA
Building area.
Definition Source
NPDP Standard Extended Attribute Table Format
Xcoord
Longitude of point-in-parcel.
Definition Source
NPDP Standard Extended Attribute Table Format
Ycoord
Latitude of point-in-parcel.
Definition Source
NPDP Standard Extended Attribute Table Format
minX
Longitude of lower left parcel bounding box.
Definition Source
NPDP Standard Extended Attribute Table Format
minY
Latitude of lower left parcel bounding box.
Definition Source
NPDP Standard Extended Attribute Table Format
maxX
Longitude of upper right parcel bounding box.
Definition Source
NPDP Standard Extended Attribute Table Format
maxY
Latitude of upper right parcel bounding box.
Definition Source
NPDP Standard Extended Attribute Table Format
LAND_VAL
Assessed land value.
MIN_VAL
Mineral value.
IMP_VAL
Assessed improvement value.
OIFIX_VAL
PP_VAL
EX_VAL
BILLING1
First element of billing address.
BILLING2
Second element of billing address.
BILLING3
Third element of billing address.
BILLING4
Fourth element of billing address.
BILLING5
Fifth element of billing address.
BILLING6
Sixth element of billing address.
BILLING7
Seventh element of billing address.
BILLING8
Eighth element of billing address.
BILLING9
Ninth element of billing address.
BILLING10
Tenth element of billing address.
LEGAL_TYPE
Parcel type.
LEGAL_DESC
Legal description of parcel.
UNFMT_DESC
SUPERV_DIS
Supervisory district.
AG_PRES
Whether agriculture is present on site.
FID
Internal feature number. (Sequential unique whole numbers that are automatically generated.)
Definition Source
ESRI
Distribution Information
Format Name
ESRI Shapefile
Distributor
Kern County Assessor's Office, Assessment Standards Division, Mapping Section.
Online Access
http://www.co.kern.ca.us/gis
Name
Metadata Reference Information
Metadata Date
20140325
Metadata Contact
Contact Information
Contact Organization Primary
Contact Organization
Map and Geospatial Information Center, Lewis Library, Princeton University
Contact Address
Address
Map and Geospatial Information Center, Lewis Library, Princeton University
City
Princeton
State or Province
NJ
Postal Code
08544
Country
US
Contact Voice Telephone
609-258-1097
Metadata Standard Name
FGDC Content Standard for Digital Geospatial Metadata
Metadata Standard Version
FGDC-STD-001-1998
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