WATER Treatment Operator B; Revised
Listed on 2026-01-12
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Engineering
Environmental Compliance, Environmental Engineer
Salary
Annual salary ranges: $79,469 to $98,741; $118,911 to $125,551; $121,479 to $128,244; $129,393 to $136,617; $130,875 to $138,162.
NotesA Water Treatment Operator does skilled work in the operation, regulation, maintenance and repair of equipment used in the treatment of potable water.
NoteEntry-level positions are trainee positions. A Water Treatment Operator in a training position must obtain a T3 (or higher) Water Treatment Operator license and be assigned to a permanent position within three years. A Water Treatment Operator in a trainee position receives extensive on-the-job training, which must be completed prior to assignment to a permanent position. Assignment to the highest pay grade may require higher-grade certification.
Conditionsof Employment
A Water Treatment Operator may be assigned to a night shift or continuous shift requiring 10 consecutive days on shift and 4 days off. Routine assignments will be made to either the Los Angeles Aqueduct Filtration Plant or the field operations section of the Water Operations Division. Work locations include the greater Los Angeles and Owens Valley areas.
Water Treatment Operators will be required to work with hazardous chemicals. Cal/OSHA Regulations require that all employees engaged in such work must wear a Self-Contained Breathing Apparatus SCBA. Therefore, all Water Treatment Operators will be medically evaluated to certify that they are physically able to wear the SCBA and must be free of any facial hair that would impair a good SCBA mask-to-face seal.
A valid T2 (or higher) Water Treatment Operator license and a D1 Water Distribution Operator License issued by the California State Water Resources Control Board, Division of Drinking Water, are required at the time of filing.
Process NotesApplications will only be accepted online. When you are viewing the online job bulletin of your choice, simply scroll to the top of the page and select the Apply icon. Online job bulletins are also available at
NotesApplications will only be accepted online on the dates listed below:
From Friday, December 6, 2024 to Thursday, December 19, 2024.
In accordance with Civil Service Rule 4.2, all applicants who apply may not be tested in this examination. To meet anticipated hiring needs, only a limited number of qualified applicants will be invited to participate in the selection process in the following order:
1) Applicants currently employed by the City of Los Angeles who meet the minimum requirements, or are on a reserve list.
2) Remaining applicants who meet the minimum requirements in sufficient numbers to meet hiring needs based on a random sampling of those qualified candidates. Applicants not selected to be tested may re-apply in a subsequent filing period in order to be considered for that period's selection process.
Weight: Multiple-Choice Test - 100%
The examination will consist entirely of a multiple-choice test administered and proctored online. In the online multiple-choice test, candidates may be tested for knowledge of the function and operation of water treatment materials and equipment sufficient to note abnormalities and or malfunctions, make repairs, replace equipment, and report need for repair; variations in process flow; basic chemistry and biology associated with water treatment;
basic water treatment terms,…
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