Maine (ME) Plant Operator Authority
MAINE (ME) PLANT OPERATOR AUTHORITY | COMPLETE EXAM
PREPARATION - QUESTIONS WITH EXPLAINED VERIFIED
ANSWERS - UPDATED EDITION
1. Which Maine agency oversees the Wastewater Operator Certification
Program?
A. Maine Department of Human Services
B. Maine Department of Environmental Protection (DEP), Division of Water
Quality Management
C. Maine Municipal Bond Bank
D. Maine Board of Licensure of Water Treatment Plant Operators
ANSWER : B
Explanation: The DEP's Division of Water Quality Management (DWQM)
oversees the Wastewater Operator Certification Program under 38 MRS and
applicable rule chapters; day-to-day administration is contracted to NEIWPCC.
Option A governs drinking water, not wastewater. Option C is a financing
entity, not a regulator. Option D licenses water (not wastewater) operators.
2. Which organization handles day-to-day administration of Maine's
Wastewater Operator Certification Program on behalf of DEP?
A. NEIWPCC (through its South Portland office / JETCC)
B. PSI/AMP Testing
C. EPA Region 1
D. American Water Works Association
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ANSWER : A
Explanation: DEP contracts with the New England Interstate Water Pollution
Control Commission (NEIWPCC), which operates from South Portland, Maine
and houses JETCC (Joint Environmental Training Coordinating Committee) for
training support. PSI/AMP administers the computer-based exams, not overall
program administration. EPA Region 1 provides federal oversight, not day-to-
day state administration. AWWA is a professional association, not the
certifying authority.
3. Which board certifies drinking water (water system) operators in Maine?
A. Maine Board of Licensure of Water Treatment Plant Operators (Drinking
Water Program)
B. Maine DEP Division of Water Quality Management
C. NEIWPCC-JETCC
D. Maine Public Utilities Commission
ANSWER : A
Explanation: Drinking water operator certification is handled by the Drinking
Water Program under Maine's licensing board framework, separate from DEP's
wastewater certification program. DEP/DWQM (Option B) governs wastewater
operators. NEIWPCC-JETCC (Option C) administers wastewater training/testing
logistics. The PUC (Option D) regulates utility rates and service, not operator
licensing.
4. Under Maine's wastewater operator certification system, what is required to
hold Operator in Responsible Charge (ORC) status at a plant?
A. Any employee of the facility, regardless of certification
B. A certification grade equal to or above the plant's classification (or a
licensed PE in good standing)
C. A high school diploma only
D. Inactive certification status
ANSWER : B
Explanation: The ORC must hold a certification at or above the plant's assigned
classification level, or be a licensed professional engineer in good standing.
Inactive-status operators are explicitly barred from serving as ORC. An
uncertified employee (Option A) cannot serve as ORC, and a diploma alone
(Option C) does not satisfy certification requirements.
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, Maine (ME) Plant Operator Authority
5. How often must Maine wastewater operator certifications be renewed?
A. Every 5 years, with no continuing education required
B. Annually, with 40 TCHs required
C. Every two years, on a schedule tied to whether the certificate number is
even or odd, requiring 18 Training Contact Hours (TCHs)
D. Once, for the operator's entire career
ANSWER : C
Explanation: Renewal follows a two-year cycle: even-numbered certifications
renew by March 1 of even years, odd-numbered by March 1 of odd years, and
generally require 18 TCHs of approved training (SITS-1 requires 6 TCHs) plus a
renewal fee. The other options misstate both the cycle length and the training
requirement.
6. How many Training Contact Hours (TCHs) are required to renew a SITS-1
(Spray Irrigation Treatment System) certification in Maine?
A. 6 TCHs
B. 18 TCHs
C. 30 TCHs
D. 0 TCHs — no renewal training required
ANSWER : A
Explanation: SITS-1 is the exception to the standard 18-TCH renewal
requirement, requiring only 6 TCHs. This reflects the more limited scope of
spray irrigation treatment systems compared to full biological or
physical/chemical plants.
7. What are the three main certification tracks (ladders) for Maine wastewater
treatment plant operators?
A. Class I, II, III only
B. Biological (B), Physical/Chemical (P/C), and Spray Irrigation Treatment
Systems (SITS)
C. Operator, Supervisor, Superintendent
D. Grade A, Grade B, Grade C
ANSWER : B
Explanation: Maine wastewater certification uses Biological (B-1 through B-5),
Physical/Chemical (P/C-1, P/C-2), and Spray Irrigation Treatment Systems (SITS-
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, Maine (ME) Plant Operator Authority
1, SITS-2) tracks, matched to how DEP classifies each plant. A Biological
certificate also covers P/C and SITS plants of equal or lower grade.
8. A Maine wastewater operator holding a Biological (B) certification at a given
grade is also authorized to operate which other plant types at the same or lower
grade?
A. None — the B certification only covers biological plants
B. Physical/Chemical (P/C) and Spray Irrigation Treatment Systems (SITS) plants
C. Drinking water treatment plants
D. Industrial pretreatment facilities exclusively
ANSWER : B
Explanation: A Biological certificate also covers Physical/Chemical and SITS
plants of the same grade or lower, which is why the B ladder is the one most
Maine wastewater operators pursue for broadest authority.
9. Which entity administers the computer-based testing (CBT) for Maine
wastewater Biological and Physical/Chemical certification exams?
A. PSI/AMP testing centers
B. The plant's ORC
C. Maine DHHS
D. A local community college
ANSWER : A
Explanation: Maine's wastewater biological and physical/chemical exams are
administered as computer-based tests through PSI/AMP testing centers, with
Maine test sites including Portland, Holden, Farmington, and Presque Isle, plus
Portsmouth, NH.
10. How many levels of certification exist for Maine water treatment facility
operators, and on what basis are they assigned?
A. Three levels, based on operator seniority
B. Five levels, based on treatment complexity
C. Two levels, based on plant size only
D. Ten levels, based on population served
ANSWER : B
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MAINE (ME) PLANT OPERATOR AUTHORITY | COMPLETE EXAM
PREPARATION - QUESTIONS WITH EXPLAINED VERIFIED
ANSWERS - UPDATED EDITION
1. Which Maine agency oversees the Wastewater Operator Certification
Program?
A. Maine Department of Human Services
B. Maine Department of Environmental Protection (DEP), Division of Water
Quality Management
C. Maine Municipal Bond Bank
D. Maine Board of Licensure of Water Treatment Plant Operators
ANSWER : B
Explanation: The DEP's Division of Water Quality Management (DWQM)
oversees the Wastewater Operator Certification Program under 38 MRS and
applicable rule chapters; day-to-day administration is contracted to NEIWPCC.
Option A governs drinking water, not wastewater. Option C is a financing
entity, not a regulator. Option D licenses water (not wastewater) operators.
2. Which organization handles day-to-day administration of Maine's
Wastewater Operator Certification Program on behalf of DEP?
A. NEIWPCC (through its South Portland office / JETCC)
B. PSI/AMP Testing
C. EPA Region 1
D. American Water Works Association
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, Maine (ME) Plant Operator Authority
ANSWER : A
Explanation: DEP contracts with the New England Interstate Water Pollution
Control Commission (NEIWPCC), which operates from South Portland, Maine
and houses JETCC (Joint Environmental Training Coordinating Committee) for
training support. PSI/AMP administers the computer-based exams, not overall
program administration. EPA Region 1 provides federal oversight, not day-to-
day state administration. AWWA is a professional association, not the
certifying authority.
3. Which board certifies drinking water (water system) operators in Maine?
A. Maine Board of Licensure of Water Treatment Plant Operators (Drinking
Water Program)
B. Maine DEP Division of Water Quality Management
C. NEIWPCC-JETCC
D. Maine Public Utilities Commission
ANSWER : A
Explanation: Drinking water operator certification is handled by the Drinking
Water Program under Maine's licensing board framework, separate from DEP's
wastewater certification program. DEP/DWQM (Option B) governs wastewater
operators. NEIWPCC-JETCC (Option C) administers wastewater training/testing
logistics. The PUC (Option D) regulates utility rates and service, not operator
licensing.
4. Under Maine's wastewater operator certification system, what is required to
hold Operator in Responsible Charge (ORC) status at a plant?
A. Any employee of the facility, regardless of certification
B. A certification grade equal to or above the plant's classification (or a
licensed PE in good standing)
C. A high school diploma only
D. Inactive certification status
ANSWER : B
Explanation: The ORC must hold a certification at or above the plant's assigned
classification level, or be a licensed professional engineer in good standing.
Inactive-status operators are explicitly barred from serving as ORC. An
uncertified employee (Option A) cannot serve as ORC, and a diploma alone
(Option C) does not satisfy certification requirements.
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, Maine (ME) Plant Operator Authority
5. How often must Maine wastewater operator certifications be renewed?
A. Every 5 years, with no continuing education required
B. Annually, with 40 TCHs required
C. Every two years, on a schedule tied to whether the certificate number is
even or odd, requiring 18 Training Contact Hours (TCHs)
D. Once, for the operator's entire career
ANSWER : C
Explanation: Renewal follows a two-year cycle: even-numbered certifications
renew by March 1 of even years, odd-numbered by March 1 of odd years, and
generally require 18 TCHs of approved training (SITS-1 requires 6 TCHs) plus a
renewal fee. The other options misstate both the cycle length and the training
requirement.
6. How many Training Contact Hours (TCHs) are required to renew a SITS-1
(Spray Irrigation Treatment System) certification in Maine?
A. 6 TCHs
B. 18 TCHs
C. 30 TCHs
D. 0 TCHs — no renewal training required
ANSWER : A
Explanation: SITS-1 is the exception to the standard 18-TCH renewal
requirement, requiring only 6 TCHs. This reflects the more limited scope of
spray irrigation treatment systems compared to full biological or
physical/chemical plants.
7. What are the three main certification tracks (ladders) for Maine wastewater
treatment plant operators?
A. Class I, II, III only
B. Biological (B), Physical/Chemical (P/C), and Spray Irrigation Treatment
Systems (SITS)
C. Operator, Supervisor, Superintendent
D. Grade A, Grade B, Grade C
ANSWER : B
Explanation: Maine wastewater certification uses Biological (B-1 through B-5),
Physical/Chemical (P/C-1, P/C-2), and Spray Irrigation Treatment Systems (SITS-
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, Maine (ME) Plant Operator Authority
1, SITS-2) tracks, matched to how DEP classifies each plant. A Biological
certificate also covers P/C and SITS plants of equal or lower grade.
8. A Maine wastewater operator holding a Biological (B) certification at a given
grade is also authorized to operate which other plant types at the same or lower
grade?
A. None — the B certification only covers biological plants
B. Physical/Chemical (P/C) and Spray Irrigation Treatment Systems (SITS) plants
C. Drinking water treatment plants
D. Industrial pretreatment facilities exclusively
ANSWER : B
Explanation: A Biological certificate also covers Physical/Chemical and SITS
plants of the same grade or lower, which is why the B ladder is the one most
Maine wastewater operators pursue for broadest authority.
9. Which entity administers the computer-based testing (CBT) for Maine
wastewater Biological and Physical/Chemical certification exams?
A. PSI/AMP testing centers
B. The plant's ORC
C. Maine DHHS
D. A local community college
ANSWER : A
Explanation: Maine's wastewater biological and physical/chemical exams are
administered as computer-based tests through PSI/AMP testing centers, with
Maine test sites including Portland, Holden, Farmington, and Presque Isle, plus
Portsmouth, NH.
10. How many levels of certification exist for Maine water treatment facility
operators, and on what basis are they assigned?
A. Three levels, based on operator seniority
B. Five levels, based on treatment complexity
C. Two levels, based on plant size only
D. Ten levels, based on population served
ANSWER : B
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