Water & Wastewater Exam Prep
Practice exams for water treatment, water distribution, wastewater treatment, and wastewater collection operator licenses — national class programs plus California and Texas state programs — each built to its official examination outline.

Water & Wastewater Programs
California Wastewater Grade 1 Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
California Wastewater Grade 2 Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
California Wastewater Grade 3 Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
California Wastewater Grade 4 Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
California Wastewater Grade 5 Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
California Water Distribution D1 Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
California Water Distribution D2 Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
California Water Distribution D3 Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
California Water Distribution D4 Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
California Water Distribution D5 Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
California Water Treatment T1 Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
California Water Treatment T2 Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
California Water Treatment T3 Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
California Water Treatment T4 Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
California Water Treatment T5 Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
Texas Wastewater Operator Class A Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
Texas Wastewater Operator Class B Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
Texas Wastewater Operator Class C Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
Texas Wastewater Operator Class D Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
Texas Water Operator Class A Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
Texas Water Operator Class B Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
Texas Water Operator Class C Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
Texas Water Operator Class D Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
Wastewater Collection Class I Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
Wastewater Collection Class II Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
Wastewater Collection Class III Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
Wastewater Collection Class IV Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
Wastewater Treatment Class I Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
Wastewater Treatment Class II Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
Wastewater Treatment Class III Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
Wastewater Treatment Class IV Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
Water Distribution Class I Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
Water Distribution Class II Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
Water Distribution Class III Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
Water Distribution Class IV Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
Water Treatment Class I Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
Water Treatment Class II Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
Water Treatment Class III Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
Water Treatment Class IV Exam Prep
Operator licensing practice built to the official examination outline for this credential.
$49
