County of Alameda

Mapping Technician III (#2303)

Bargaining Unit: SEIU 1021 - Misc Sub/Para Prof (012)
$40.07-$47.88 Hourly / $3,005.25-$3,591.00 BiWeekly /
$6,511.38-$7,780.50 Monthly / $78,136.50-$93,366.00 Yearly


Mapping Technicians perform a variety of detailed mapping and drafting work; interpret and delineate property ownership; establish and maintain detailed and inter-related mapping systems; interpret and coordinate technical research data; and perform related work as required.


The Mapping Technician classes are found only in the Office of the Assessor.

Mapping Technician III is the most advanced level technician in the series. Incumbents work independently and may act in a lead capacity, providing guidance and coordinating the work of a Mapping Technician I and II. Positions in this class are responsible for performing more complex mapping assignments, including the full range of activities on the geographic information system (GIS), which requires independent initiative, extensive specialized knowledge and skill. Incumbents at this level perform a highly technical and specialized function, and usually have full program responsibility in their area of specialization.

NOTE: The following are the duties performed by employees in this classification. However, employees may perform other related duties at an equivalent level. Each individual in the classification does not necessarily perform all duties listed.

1. Plans and produces manually-drafted assessment maps.

2. Plans and produces computer-generated assessment maps.

3. Reviews and analyzes maps and legal documents for compliance with local codes and ordinances.

4. Plots and integrates into the Assessor’s mapping systems and County’s enterprise geographic information system (EGIS) parcel layer right-of-way information obtained from various public agencies, including State Division of Highways (Caltrans), Cities, Alameda County, BART and public utility companies.

5. Interprets ownership boundaries from Rancho, Township, Record of Survey, Sub-Division, State Highway, and utility Property Maps and from recorded metes and bounds descriptions and private surveys. Reviews impact upon existing map records, prepares layout design, computes acreage, identifies parcel description changes, prepares work order for maintaining a historical record of change. Establishes new parcel identification in accordance with mapping standards.

6. Prepares and maintains special use maps for California Land Conservation Act properties and Mineral Rights properties.

7. Updates and maintains the County’s EGIS parcel layer and associated tables.

8. Reviews district boundary changes for adequacy and impact upon the Assessor’s parcel identification system and makes appropriate reports for the Local Agency Formation Commission or the initiating Agency.

9. Performs calculations and prepares final maps or updates existing maps using standard drafting instruments or computer graphic terminals.

10. Prepares legal descriptions for tax deeded properties for recordation.

11. Converts manual-drafted assessment maps to computer-generated maps.

12. Processes requests for cancellation of taxes received by the County.

13. Assists the public and governmental agencies regarding parcel and boundary inquiries.


Either I

The equivalent of one-year experience in the class of Mapping Technician II in the Alameda County classified service. (Non-classified includes District Attorney’s Office, Hospital Authority, and the Consolidated Courts.)


Possession of an Associate of Science or Arts Degree in Civil Drafting Technology from an accredited college or university,


The equivalent of three years of full-time, increasingly responsible and varied mapping or drafting experience. Experience with computer-assisted drafting (CAD) or geographic information systems (GIS) is desirable.


The equivalent of four years of full-time increasingly responsible and varied mapping or drafting technician work, which involved establishing and maintaining detailed inter-related mapping systems.

NOTE: The Civil Service Commission may modify the above minimum qualifications in the announcement of an examination.

NOTE: The level and scope of the following knowledge and abilities are related to duties listed under the “Examples of Duties” section of this specification.

Knowledge of:

• Modern office practices and procedures including the use of computer hardware, software and related equipment.
• Mathematics, including trigonometry.
• Basic sub-professional engineering drafting materials, techniques and instruments.

Ability to:

• Prepare complete and comprehensive written reports involving the analysis of rules and regulations.
• Interpret plans and documents.
• Prepare neat and accurate mapping work.
• Read and interpret legal descriptions.
• Read and understand maps and property descriptions, surveys and tract descriptions.
• Reproduce and maintain maps.
• Communicate effectively and coordinate the work of others.
• Utilize geographic information systems (GIS).

Old doc: 2301h.doc
New doc: 2301-2302-2303.doc
CSC Date: 1/21/98
HC:pf Revised 7/30/04
CSC Date: 9/15/2004
RY Revised 6/26/2012
CSC Date: 9/19/12


Alameda County offers a comprehensive and competitive benefits package that affords wide-ranging health care options to meet the different needs of a diverse workforce and their families. We also sponsor many different employee discount, fitness and health screening programs focused on overall well being.  These benefits include but are not limited to*:

For your Health & Well-Being

  • Medical – HMO & PPO Plans
  • Dental – HMO & PPO Plans
  • Vision or Vision Reimbursement
  • Share the Savings
  • Basic Life Insurance 
  • Supplemental Life Insurance (with optional dependent coverage for eligible employees) 
  • County Allowance Credit
  • Flexible Spending Accounts - Health FSA, Dependent Care and Adoption Assistance
  • Short-Term Disability Insurance
  • Long-Term Disability Insurance
  • Voluntary Benefits - Accident Insurance, Critical Illness, Hospital Indemnity and Legal Services
  • Employee Assistance Program

For your Financial Future

  • Retirement Plan - (Defined Benefit Pension Plan)
  • Deferred Compensation Plan (457 Plan or Roth Plan)

For your Work/Life Balance

  • 12 paid holidays
  • Floating Holidays
  • Vacation and sick leave accrual
  • Vacation purchase program
  • Catastrophic Sick Leave
  • Group Auto/Home Insurance
  • Pet Insurance
  • Commuter Benefits Program
  • Guaranteed Ride Home
  • Employee Wellness Program (e.g. At Work Fitness, Incentive Based Programs, Gym Membership Discounts)
  • Employee Discount Program (e.g. theme parks, cell phone, etc.)
  • Child Care Resources
  • 1st United Services Credit Union 

*Eligibility is determined by Alameda County and offerings may vary by collective bargaining agreement.  This provides a brief summary of the benefits offered and can be subject to change.


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