Water & Wastewater Operator Certification in Arkansas

Your path to certified in Arkansas

1. Sort out which agency owns your license. Water operators license through the Department of Health under Board of Health rules. Wastewater operators license through DEQ inside the Department of Energy and Environment, under Pollution Control and Ecology Commission Rule 3. Different committees, different portals, different lookups.
2. On the water side, the classroom comes before the exam. Arkansas requires 40 to 96 hours of approved coursework (by grade) before you may sit; test without it and the exam is void, fee forfeited. The mandatory course schedule shows what is running where.
3. The fees will not be your problem. Water: $25 exam, $10 license, $10 biennial renewal. Wastewater: $40 covering exam and license together, $20 retakes. Few states come close.
4. Wastewater entry skips the experience bar. Municipal Class I takes a diploma or GED, a 40-hour basic course, and the exam, no work history required. A $10 apprentice license (six months, issued once) covers a brand-new hire while they qualify.
5. Both clocks tick together. Every license renews on the same July 1 to June 30 biennium with 24 training hours per period, at least half directly in your discipline, and each side credits the other side's coursework as indirect hours.

Water exams run paper at association district meetings or computer-based year-round; wastewater tests monthly at DEQ headquarters plus field sites. Either way the math is the same; drill it free in the practice tool before you spend a Friday in Maumelle.

Drinking water: Arkansas Dept of Health, Engineering Section (Water Operator Licensing) program page

Wastewater: Arkansas Dept of Energy & Environment, Division of Environmental Quality (DEQ) program page

Who runs certification here

Two houses, two rulebooks. The Department of Health's Engineering Section has run water operator licensing since 1957 under Board of Health rules (last revised effective 2024-03-25), advised by a seven-member licensing committee that seats four working Class A operators. The Division of Environmental Quality runs wastewater licensing under Rule 3 with its own Wastewater Licensing Committee; a 2025 law is trimming that committee from eight members to five, with conforming rule amendments in the works. Both sides publish public operator lookups: water and wastewater.

The grades and what they cover

Water splits into Treatment (Grades I to IV) and Distribution, which adds a Very Small/Small System license below Grade I for systems under 500 people on a single pressure plane. Hold both licenses if you do both jobs. Grades follow treatment type, population, and whether you are the operator in responsible charge, with experience from six months (Grade I) to three years (Grade IV) and the D-SS license needing none at all. Pass the exam early and an Operator-In-Training certificate holds your place.

Wastewater runs Apprentice, then municipal Classes I through IV, with plant class computed from a points table (flow times strength, processes, sludge handling) rather than population. Industrial plants use Basic and Advanced Industrial licenses, and Technical licenses exist for support staff who never run a plant. Licensed professional engineers may sit exams through Class III without climbing the ladder.

The exam: logistics, not cramming

Water: apply with fees at least 60 days ahead (the application stays valid a year), then choose your format at the registration portal: paper sessions tied to association district meetings (traditionally July and November) and conferences, or computer-based testing year-round at assessment centers. Grades I to IV run at least 100 questions, closed book, formulas provided, photo ID required. Re-exams cost $25 and need 15 days notice.

Wastewater: the 2026 schedule runs monthly Friday sittings at DEQ headquarters (8:30 and 1:00) plus field locations around the state; Class IV tests quarterly and wants 30 days lead. Pass mark is 70, a fail means a three-month wait, and the $40 fee dies if you skip your window by more than 60 days. Applications flow through the state SEEK portal, which was unreachable to our checker on research day, so expect to confirm it loads.

What those hundred questions actually test is mapped in the what's on the exam guide.

Keeping it current (renewal)

One biennium for everyone: July 1 to June 30, two years at a time, synchronized across both programs since 2007. Each license needs 24 hours of approved training per period, at least 12 directly in its discipline, and the cross-credit rule is genuinely useful for dual-license operators: water coursework counts as indirect hours for wastewater and vice versa.

Costs stay small. Water renewals run $10 with a $5 late penalty; lapse over 90 days and you reinstate within a year with documentation, past a year you retest. Wastewater renewals run $40 with $10 late; expired beyond a year means re-examination at whatever class the committee decides. Multiple licenses share one set of training hours but pay their own fees.

Training and continuing education

Two state-approved providers deliver the mandatory pre-exam courses: Arkansas Rural Water Association (its training hub posts the calendar and runs review courses right before test dates) and the Arkansas Environmental Training Academy at SAU Tech in Camden. District meetings of the statewide water and wastewater association carry renewal credit, approved safety courses count, and a distinctly Arkansas allowance lets correspondence chapters from the Sacramento State operator courses earn wastewater hours at four per chapter. An earn-while-you-learn path exists too: a completed US Department of Labor registered apprenticeship can itself qualify you for a water license.

Reciprocity

The water side calls it endorsement and moved fast after a 2023 law: hold a substantially similar license in good standing elsewhere, pay $25 per license, and Arkansas issues a temporary license immediately while it evaluates (at least 90 days of runway). Veterans, service members, and spouses get automatic licensure provisions, and operators from states that license less rigorously complete Arkansas's training instead. The wastewater side is older-school: a written request, a $40 research fee, proof you passed a real exam where you came from, and mutuality, since Arkansas only honors states that honor Arkansas.

Where to get help (small systems)

• Arkansas Rural Water Association, arkansasruralwater.org: free and low-cost training for systems under 10,000 people, exam review courses, and an online learning portal.
• Arkansas Environmental Training Academy at SAU Tech: the other approved provider for the required courses, plus exam prep.
• Both operator lookups are public: water directory and wastewater search, useful for verifying a hire or a contract operator.
• The licensing programs themselves answer eligibility questions; the health department even pre-reviews applications informally by email.

Running a system in Arkansas

Who regulates, who funds, in brief.

Rate regulation. The Public Service Commission's water jurisdiction is nearly empty: two investor-owned utilities, both Liberty companies, and zero sewer utilities. Municipal systems, improvement districts, and public corporations all set rates locally; the PSC water page spells out the exemptions.

Funding. Both revolving funds live at the Department of Agriculture's Natural Resources Division, not the health department: the funding page covers the Drinking Water and Clean Water revolving funds alongside several state funds, with loans around 3.5 to 5.5 percent and zero-percent incentive rates for regionalization, cybersecurity, and lead service line work.

Mutual aid. ARWARN exists as Arkansas's water and wastewater response network, reachable through AWWA's national WARN directory (it keeps no website of its own). Get the agreement signed before tornado season; that is the whole point.