Source check: 2026-10-04. Shared WPI courses are linked only where the standardized exam and class match are confirmed. Local grades may not equal WPI class numbers. Your authority's current documents control.
Exam route under review
Program authority: Louisiana Department of Health, Office of Public Health, Bureau of Engineering Services, Operator Certification Program; Louisiana Committee of Certification
Local levels: Water Treatment Class 1, Class 2, Class 3, Class 4. Operator-in-Training and Provisional are certificate statuses, not additional numbered exam classes.
Mandatory for surface-water facilities and qualifying groundwater treatment; simple-disinfection-only groundwater has a treatment-certification exception. State-controlled preparation and local outlines are documented, but the sources do not explicitly establish whether the technical exams are state-authored, customized ABC/WPI, or standardized ABC/WPI. No standardized scope or local-to-WPI class correspondence verified. The separate Louisiana Law and Rules Examination is confirmed.
No state-matched course is linked for this stream yet.
§7305.D specifies water-treatment certification and the groundwater exception; §7323.D requires exams in sequence from Class 1 to Class 4 in each category. §7331.K recognizes exams 'prepared under the auspices of the administrator and the committee of certification,' without identifying their question-bank provider.
Separate WATER TREATMENT CLASS 1, 2, 3 and 4 outlines. Class 1 includes fluoridation, pH adjustment and applicable state/federal regulations; Class 4 includes reverse osmosis, electrodialysis and expert regulatory knowledge. No standardized ABC/WPI designation.
The statewide water and wastewater program's duties include 'Conducting and directing the preparation, validation, administration, grading, and periodic updating of Operator Certification exams.' This establishes state responsibility, not an explicit standardized/customized/state-authored exam designation.
'Must be completed and returned to the Operator Certification Office before Certificate(s) will be issued.' Questions address Louisiana facility classes, certification responsibilities, renewals and operator-in-training restrictions.
Exam route under review
Program authority: Louisiana Department of Health, Office of Public Health, Bureau of Engineering Services, Operator Certification Program; Louisiana Committee of Certification
Local levels: Wastewater Treatment Class 1, Class 2, Class 3, Class 4. Operator-in-Training and Provisional are certificate statuses, not additional numbered exam classes.
Mandatory for facilities treating wastewater and reducing or handling removed sludge. Wastewater-treatment evidence was opened independently of drinking-water evidence. Local outlines and committee exam control do not explicitly identify standardized ABC/WPI, customized ABC/WPI or state-authored technical exams; no shared levels verified. Louisiana's separate Law and Rules Examination also applies.
No state-matched course is linked for this stream yet.
§7305.E requires wastewater-treatment certification; §7323.D requires Class 1–4 exam sequence in each category. §7321.A requires committee/appointee validation of questions and §7331.K state program auspices. §7325.B requires the Certification Law and Rules Examination.
Separate WASTEWATER TREATMENT CLASS 1, 2, 3 and 4 outlines. Class 2 requires federal/state NPDES permit effluent requirements; Class 3 covers permit-violation reporting and process-control calculations; Class 4 includes advanced nitrogen/phosphorus removal and wastewater reclamation. No standardized ABC/WPI designation.
The LDH page explicitly covers both water and wastewater operators and separately links Wastewater Treatment under 'Exam Need to Know.' It identifies the Louisiana Committee of Certification.
Exam route under review
Program authority: Louisiana Department of Health, Office of Public Health, Bureau of Engineering Services, Operator Certification Program; Louisiana Committee of Certification
Local levels: Water Distribution Class 1, Class 2, Class 3, Class 4. Operator-in-Training and Provisional are certificate statuses, not additional numbered exam classes.
Mandatory for water conveyance from the treatment plant or other supply point to consumers. Distribution-specific local outlines and state exam control are documented, but neither technical exam provenance nor standardized ABC/WPI class correspondence is explicit; standardized versus customized versus state-authored remains unverified. Louisiana's separate Law and Rules Examination also applies.
No state-matched course is linked for this stream yet.
§7305.C requires water-distribution certification; §7323.D requires Class 1–4 exam sequence in each category. §7321.A assigns question validation to the committee or its appointees; §7331.K requires exams prepared under state program auspices. §7325.B requires the Certification Law and Rules Examination.
Separate WATER DISTRIBUTION CLASS 1, 2, 3 and 4 outlines. Topics progress from disinfection, sampling and cross-connections to emergency continuity, pump curves, water loss, utility legal responsibilities and complex friction-loss calculations; no standardized ABC/WPI designation.
Current LDH program page names the Louisiana Committee of Certification and links Water Distribution under 'Exam Need to Know,' plus the certification rule and Law and Rule Exam.
Exam route under review
Program authority: Louisiana Department of Health, Office of Public Health, Bureau of Engineering Services, Operator Certification Program; Louisiana Committee of Certification
Local levels: Wastewater Collection Class 1, Class 2, Class 3, Class 4. Operator-in-Training and Provisional are certificate statuses, not additional numbered exam classes.
Mandatory for sewerage-system components other than the treatment plant, not presented as a voluntary association certificate. Collection-specific evidence was opened independently. The technical exam family remains unverified: local class numbering and committee preparation/validation are insufficient to prove standardized ABC/WPI or distinguish customized from state-authored exams. Louisiana's separate Law and Rules Examination also applies.
No state-matched course is linked for this stream yet.
§7305.F requires wastewater-collection certification on all sewerage-system components except the treatment plant; §7323.D requires Class 1–4 exam sequence in each category. §§7321.A and 7331.K establish committee validation and state program preparation auspices, not a named standardized exam. §7325.B requires the Law and Rules Examination.
Separate WASTEWATER COLLECTION CLASS 1, 2, 3 and 4 outlines. Subjects include lift stations and underground safety, sewer leak testing and rehabilitation, infiltration/inflow calculations, and Class 4 televised-line interpretation and retrofit specifications. No standardized ABC/WPI designation.
The official program separately lists Wastewater Collection under 'Exam Need to Know' and provides certification-rule and Law and Rule Exam links.
Dedicated prep is not available or being sold yet.