Title: Boundary and Annexation Survey BAS
1Boundary and Annexation Survey (BAS)
- Laura Waggoner
- Legal Areas Team Lead
- Boundary and Annexation Survey Project Manager
- Michael Clements
- Geographer
- Boundary and Annexation Survey
- Geographic Areas Branch, Geography Division
- U.S. Census Bureau
2Presentation Overview
- Boundary and Annexation Survey (BAS)
- - What is the BAS?
- - Why do we conduct the BAS?
- - What are the current and future BAS submission
methods? - - What are important dates for the current BAS
year? - - Who should you contact if you have questions?
3What is the Boundary and Annexation Survey (BAS)?
4Boundary and Annexation Survey (BAS)
- Voluntary survey conducted annually to collect
boundaries for legal areas - Primary source of information regarding
- legal boundaries
- names of governments
- legal status
- types of governmental units
- new governments
- boundary changes
- geographic relationships
- e.g. a place annexes into a new county or minor
civil division (MCD)
5Boundary and Annexation Survey (BAS)
- Governmental units (entities) included in the
survey - counties and their equivalents
- MCDs
- incorporated places
- American Indian reservations and off-reservation
trust lands (federally recognized)
6Why do we conduct the Boundary and Annexation
Survey (BAS)?
7Boundary and Annexation Survey (BAS)
- Ensures that population and housing counts are
assigned to the correct geography - Used to present statistics for various censuses
and surveys - American Community Survey (ACS)
- Population Estimates Program
- 2010 Decennial Census Programs
8Legal Boundary Changes versus Boundary
Corrections
The two types of modifications that can be made
to a boundary are legal boundary changes and
boundary corrections. A boundary change is an
alteration to a boundary as a result of a legal
action (i.e., ordinance). Reporting legal
boundary changes is the primary goal of the BAS.
A boundary correction is the adjustment of a
boundary to correct an error in how the Census
Bureau depicts an existing boundary and does not
require legal documentation.
9Preparing for the Boundary and Annexation Survey
(BAS)
10Determining the BAS Contact
- Each year BAS materials are mailed to our BAS
contacts - How do we determine who the BAS contact is?
- We are instructed by a local official as to who
should receive the BAS package - A local government employee responds to the BAS
multiple consecutive years, the Legal Areas team
will make them the BAS contact. - If we have not received a BAS response for
several years, the Legal Areas team will attempt
to establish a contact in either a planning or
GIS department. - The Advance Response phase (non-decennial phase)
of BAS provides contact updates - State Data Center staff provide contact updates
to the Census Bureau during the telephone
follow-up phase of BAS. - If there is no BAS contact and the Census Bureau
is unable to establish a contact, the package
will be mailed to the Highest Elected Official
(HEO)
11Advance Response (non-decennial years)
- Sent in September-October
- Participants receive a letter, one-page form, and
one-page informational insert about the BAS via - Mail
- E-mail
- Fax
- Requests participants to
- Verify contact information
- Indicate if they have boundary updates to report
- Indicate the method they would like to submit
their boundary updates
12Submission Methods
- Paper Submission
- Web-BAS
- MAF/TIGER Partnership Software
- Digital BAS
13Paper Submission
- Census Bureau
- mails paper maps and a BAS form to the BAS
contact - Participants
- annotate and return large scale paper maps and
forms - provide documentation for each legal boundary
change (date, number, acreage) - If the participant does not have any changes to
report, they can return a No Change postcard
14WEB-BAS
- Participants
- Currently (E-BAS)
- are able to
- login to a secure website
- submit a No Change postcard or form updates.
- are not able to
- submit map updates
- In 2009 (Web-BAS)
- are able to
- submit spatial data
- The E-BAS website is linked off of the BAS
homepage (http//www.census.gov/geo/www/bas/bashom
e.html) and the username and password are
provided in the Special Instructions section on
the paper form.
15MAF/TIGER Partnership Software
- Available for 2008 BAS
- Participants will receive
- a CD containing the software to install on to
their computer - one or more CD(s) containing the data for their
entity and the surrounding area - a user name and password to access the data in
the software - Participants will be able to submit map and form
updates.
16Digital BAS
- First offered during the 2005 BAS for a limited
number of entities - Designed to accept submissions from experienced
users of Geographic Information Systems (GIS) who
modify Census Bureau spatial data - Spatial data provided in GIS shapefile format
- Goal is to permit governmental units to
- update digital files in place of paper maps
- submit boundary change information through
digital file metadata - Participants are required to
- follow the detailed requirements posted on the
BAS website http//www.census.gov/geo/www/bas/ba
shome.html - Limited to entities and counties
- that have gone through the Census Bureaus
MAF-TIGER Accuracy Improvement Project (MTAIP)
process
17Digital BAS
18Digital BAS Symbolized Incorporated Place
Layer in ArcGIS
add an annexation here
19- What are important dates for the current BAS year?
20Typical BAS Year Activities
- Important Dates
- Advance Letter
- September
- Package Mailout
- January
- Change in Material
- January 15th in 2009 and 2010, February 15th in
non-decennial years - Paper maps to Digital Submission
- Digital Submission to Paper
- MAF/TIGER Partnership Software to Paper
- Changing to Web submission doesnt have a deadline
21Future Goals
- Boundary Validation Program (BVP)
- After the 2010 BAS, the Census Bureau will send a
Boundary Validation Map to the Highest Elected
Official of every legal entity in the United
States for final review before tabulation. -
22- Who should you contact if you have questions?
23Contact Information
- Laura Waggoner
- Legal Areas Team Lead
- Boundary and Annexation Survey Project Manager
- Geographic Areas Branch
- Geography Division
- U.S. Census Bureau
- 4700 Silver Hill Road, 4H134F
- Washington, DC 20233-7400
- Phone 301-763-1099
- Email laura.l.waggoner_at_census.gov