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Water treatment operator training in California

6 water and wastewater programs with costs, results and funding that can make them free

5 schools offer these water treatment programs, and California has approved every one for workforce funding. Each shows its price if you pay yourself and how past students did.

Water and wastewater treatment plant and system operators run the machines that move and treat water. They typically need at least a high school diploma and long-term training on the job, and a state license is usually required; licenses have several levels, and employers may prefer applicants with a certificate or degree in a field such as water treatment technology.1 Under the federal Safe Drinking Water Act, every state must run a certification program for the operators of community water systems, or lose a fifth of its federal drinking water grant; the state sets the levels and exams.2

In California, 4 of the 6 programs take students without a high school diploma, 1 asks for a diploma or equivalent and 1 asks for earlier courses first.

By kind, the 6 programs here are water or wastewater operator certificate (4 programs) and operator exam prep or short course (2 programs).

See the 6 programs

How much does water treatment operator training cost in California?

$1,001 to $1,263 is what most water and wastewater programs in California cost if you pay yourself

That is the middle half of the 6 programs with a price. All of them: $940 to $1,600

In the typical program

Finished the program
Not enough data
3 programs report it; a typical figure needs 5
Working 6 months later
Not enough data
3 programs report it; a typical figure needs 5
Earned a year, estimated
Not enough data
2 programs report it; a typical figure needs 5
Length
12 to 31 weeks

Source: US Department of Labor, program year 2024 (July 2024 to June 2025). Only programs approved for workforce funding are listed; other schools in California may also offer water treatment operator training. How these figures are made

Is there free water treatment operator training in California?

Who qualifies, and other ways to pay: financial aid, grants and the GI Bill

All 6 water and wastewater programs in California approved for WIOA funding

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6 programs

  • Water or wastewater operator certificateIn personNo diploma needed

    Water Technology Distribution and Treatment

    Bassett Adult School

    La Puente

    No diploma needed

    Bassett Adult School, La PuenteWater or wastewater operator certificateIn person · No diploma needed

    Earned a year, estimatedLeft out
    Price if you pay yourself$1,600

    8 students trained with WIOA funding

    Program website, Water Technology Distribution and Treatment at Bassett Adult School
    More details about Water Technology Distribution and Treatment at Bassett Adult School
    Finished
    81%
    Working at 6 months
    73%
    Earned in a quarter
    Left out
    Length
    13 weeks, 9 hours a week
    Cost of supplies
    $450
    Students counted
    70
    Earned a year, estimated
    Left out
    Price if you pay yourself
    $1,600
    students trained with WIOA funding
    8
    Program website, Water Technology Distribution and Treatment at Bassett Adult School

  • Water or wastewater operator certificateOnlineNo diploma needed

    Wastewater Treatment Plant Operator Program

    Castro Valley Adult & Career Education

    Based in Castro Valley, CA

    No diploma needed

    Castro Valley Adult & Career Education, based in Castro Valley, CAWater or wastewater operator certificateOnline · No diploma needed

    Earned a year, estimated$13,500
    Price if you pay yourself$985
    More details about Wastewater Treatment Plant Operator Program at Castro Valley Adult & Career Education
    Finished
    100%
    Working at 6 months
    75%
    Earned in a quarter
    $3,371
    Length
    35 weeks, 3 hours a week
    Cost of supplies
    $500
    Students counted
    62
    Earned a year, estimated
    $13,500
    Price if you pay yourself
    $985

  • Operator exam prep or short courseIn personNo diploma needed

    Water Technician 2- Treatment

    Hacienda La Puente Adult Education

    La Puente

    Accredited school

    No diploma needed

    Hacienda La Puente Adult Education, La PuenteOperator exam prep or short course · Accredited schoolIn person · No diploma needed

    Earned a year, estimated$75,600
    Price if you pay yourself$1,050
    Program website, Water Technician 2- Treatment at Hacienda La Puente Adult Education
    More details about Water Technician 2- Treatment at Hacienda La Puente Adult Education
    Finished
    94%
    Working at 6 months
    94%
    Earned in a quarter
    $18,902
    Length
    12 weeks, 13 hours a week
    Cost of supplies
    $118
    Students counted
    10
    Earned a year, estimated
    $75,600
    Price if you pay yourself
    $1,050
    Program website, Water Technician 2- Treatment at Hacienda La Puente Adult Education

  • Water or wastewater operator certificateHybridHigh school diploma or equivalent

    Environmental Technology-Water/Wastewater Technology Certificate

    Woodland Community College

    Woodland

    Accredited school

    High school diploma or equivalent

    Woodland Community College, WoodlandWater or wastewater operator certificate · Accredited schoolHybrid · High school diploma or equivalent

    Earned a year, estimatedNot reported
    Price if you pay yourself$940
    Program website, Environmental Technology-Water/Wastewater Technology Certificate at Woodland Community College
    More details about Environmental Technology-Water/Wastewater Technology Certificate at Woodland Community College
    Finished
    Not reported
    Working at 6 months
    Not reported
    Earned in a quarter
    Not reported
    Length
    18 weeks, 16 hours a week
    Cost of supplies
    $1,917
    Students counted
    Not reported
    Earned a year, estimated
    Not reported
    Price if you pay yourself
    $940
    Program website, Environmental Technology-Water/Wastewater Technology Certificate at Woodland Community College

  • Operator exam prep or short courseIn personNo diploma needed

    Water Technology 1 -Distribution

    Hacienda La Puente Adult Education

    La Puente

    Accredited school

    No diploma needed

    Hacienda La Puente Adult Education, La PuenteOperator exam prep or short course · Accredited schoolIn person · No diploma needed

    Earned a year, estimatedNot reported
    Price if you pay yourself$1,050
    Program website, Water Technology 1 -Distribution at Hacienda La Puente Adult Education
    More details about Water Technology 1 -Distribution at Hacienda La Puente Adult Education
    Finished
    Not reported
    Working at 6 months
    Not reported
    Earned in a quarter
    Not reported
    Length
    12 weeks, 13 hours a week
    Cost of supplies
    $98
    Students counted
    Not reported
    Earned a year, estimated
    Not reported
    Price if you pay yourself
    $1,050
    Program website, Water Technology 1 -Distribution at Hacienda La Puente Adult Education

  • Water or wastewater operator certificateIn personPrerequisite courses

    Water Supply Technology

    San Bernardino Valley College

    San Bernardino

    Accredited school

    Prerequisite courses

    San Bernardino Valley College, San BernardinoWater or wastewater operator certificate · Accredited schoolIn person · Prerequisite courses

    Earned a year, estimatedNot reported
    Price if you pay yourself$1,334
    Program website, Water Supply Technology at San Bernardino Valley College
    More details about Water Supply Technology at San Bernardino Valley College
    Finished
    Not reported
    Working at 6 months
    Not reported
    Earned in a quarter
    Not reported
    Length
    96 weeks, 40 hours a week
    Cost of supplies
    $1,635
    Students counted
    Not reported
    Earned a year, estimated
    Not reported
    Price if you pay yourself
    $1,334
    Program website, Water Supply Technology at San Bernardino Valley College

How to pay for water treatment operator training in California

WIOA funding can pay for water treatment operator training in California

Every program on this page is approved for it. Whether you qualify, how much your local area pays and how to apply are on our page Does WIOA pay for job training?

Financial aid and grants for water treatment operator training

Most students can get federal student aid for college, career school or trade school. A Federal Pell Grant, unlike a loan, usually doesn't have to be repaid. Ask the school whether its program qualifies.78

GI Bill for water treatment operator training

Veterans, service members and qualified dependents can use GI Bill benefits for non-college training programs.9

The program list does not show which programs accept these. Ask the school.

Water treatment operator training in Los Angeles, Chico, Riverside and other California cities

Choosing an area filters the program list above. 1 program is online.

Other training in California

How water treatment operator training compares with the rest of skilled trades: Trade school programs in California

Where the California water treatment program numbers come from

Which California water treatment programs are on this list?

These are the water treatment programs California approved for WIOA funding (public workforce funding under the Workforce Innovation and Opportunity Act), as reported to the US Department of Labor for program year 2024 (July 2024 to June 2025). Each state keeps its approved programs on an eligible training provider list (ETPL).10 The list here covers programs approved as of June 30, 2025. Schools that never applied for approval are missing, so this is a part of what California offers.

How the prices and results of California water treatment programs are measured

Prices are tuition and required fees for someone paying without workforce funding, as the school reported them; check the current price with the school. Results describe students who left each program in recent years, so they are no guarantee, and the yearly earnings are the reported quarter times four, an estimate. A program without a "Trained with WIOA funding" line may still take WIOA students. Where a field was left empty or withheld, the page says "Not reported", and "Left out" where a figure was filed but failed one of our checks; nothing is estimated to fill a gap. Where the numbers come from explains each figure in full.

Sources for the facts about water treatment operator training in California

Show the 10 sourcesHide the sources
  1. US Bureau of Labor Statistics, Occupational Outlook Handbook: Water and Wastewater Treatment Plant and System Operators
  2. US Code: 42 U.S.C. 300g-8, operator certification
  3. US Department of Labor, TrainingProviderResults.gov: About This Site
  4. US Department of Labor: WIOA Adult Program
  5. Code of Federal Regulations, title 20, part 680, sections 680.220, 680.230 and 680.310: career services before training, other grants such as Pell Grants first, and limits on Individual Training Accounts (GovInfo, 2024 edition)
  6. US Department of Labor: American Job Centers
  7. US Department of Education, Federal Student Aid: Eligibility for Federal Student Aid
  8. US Department of Education, Federal Student Aid: Don't Miss Out on Federal Pell Grants
  9. US Department of Veterans Affairs: GI Bill benefits for non-college degree programs
  10. US Department of Labor, Training and Employment Guidance Letter 8-19, Attachment I: Requirements for Training Providers, Program Eligibility, and the State Eligible Training Provider (ETP) List