WASHINGTON HYDROGEOLOGIST LICENSING EXAM COMPLETE
EXAM QUESTIONS AND VERIFIED ANSWERS | 2026–2027 LATEST
UPDATE | GUARANTEED PASS | DETAILED RATIONALES | FULL
STUDY GUIDE | EXAM PREP | PRACTICE TEST | CERTIFICATION
PREPARATION
Question 1
Which prerequisite must be satisfied before an applicant can sit for the Washington
Hydrogeologist Licensing Examination?
A) Completion of an accredited civil engineering degree
B) Passing the Fundamentals of Geology (FG) examination
C) Holding a current Washington state geologist license
D) Membership in a recognized geological society
Answer
Answer: C
Rationale
The hydrogeologist specialty license is an advanced credential that builds upon the foundational
geologist license issued by Washington State. WAC 308-15-057 establishes that eligibility for the
hydrogeologist specialty examination requires holding a current Washington geologist license before
any specialty application can proceed. Without this foundational credential, the Board cannot consider
a hydrogeologist specialty application regardless of other qualifications.
Question 2
How often is the Washington Hydrogeologist Licensing Examination typically administered?
A) Once every year
B) Twice per year
C) Every two years
D) Quarterly
Answer
Answer: B
,Rationale
The hydrogeologist specialty examination is administered twice annually, aligned with the ASBOG
examination dates. This schedule allows candidates to plan their preparation and testing in
coordination with the national geology examinations, ensuring that the specialty exam integrates
smoothly into the broader licensure pathway.
Question 3
What is the minimum duration of documented professional experience required for a
hydrogeologist specialty license in Washington?
A) Two years
B) Three years
C) Five years
D) Ten years
Answer
Answer: C
Rationale
Applicants must document at least five years of relevant hydrogeology experience to qualify for the
specialty license. This extended experience requirement ensures that licensed hydrogeologists
possess the depth of practical knowledge necessary to make sound professional judgments in
groundwater investigations, remediation, and resource management.
Question 4
At least how many years of the required hydrogeology experience must be completed under
the supervision of a licensed hydrogeologist or qualified professional?
A) One year
B) Two years
C) Three years
D) Four years
Answer
Answer: C
Rationale
2
,A minimum of three years of the required experience must be supervised by a licensed hydrogeologist
or qualified professional. This supervised experience ensures that candidates receive mentorship in
the practical application of hydrogeologic principles, regulatory frameworks, and professional
standards before practicing independently.
Question 5
Which chapter of the Revised Code of Washington (RCW) defines the practice of hydrogeology
and establishes the licensing framework for geologists?
A) RCW 18.104
B) RCW 90.03
C) RCW 18.220
D) RCW 90.44
Answer
Answer: C
Rationale
RCW 18.220 is the statutory chapter that establishes the geologist licensing board, defines the
practice of geology and hydrogeology, and sets forth the licensing requirements for geologists and
specialty geologists in Washington State. RCW 18.104 addresses water well construction, while RCW
90.03 and 90.44 govern water rights and groundwater withdrawal.
Question 6
Under RCW 18.220.010, how is "hydrogeology" defined?
A) The study of surface water movement and watershed management
B) A science that involves the study of the waters of the earth, including occurrence, circulation,
distribution, chemistry, and quality
C) The engineering of water supply systems and treatment facilities
D) The study of atmospheric moisture and precipitation patterns
Answer
Answer: B
Rationale
RCW 18.220.010(8) defines hydrogeology as a science involving the study of the waters of the earth,
3
, including the study of the occurrence, circulation, distribution, chemistry, remediation, or quality of
water and its role as a natural agent that causes changes in the earth. This definition encompasses
both the scientific study of groundwater and its practical applications in resource management and
environmental protection.
Question 7
What is the primary regulatory purpose of the hydrogeologist licensing requirement in
Washington State?
A) To limit competition in the environmental consulting industry
B) To ensure that persons performing hydrogeologic work meet minimum competency standards to
safeguard public health, safety, and the environment
C) To generate revenue for the state through licensing fees
D) To require membership in professional geological organizations
Answer
Answer: B
Rationale
The licensing framework under RCW 18.220 is designed to protect the public by ensuring that only
qualified individuals practice hydrogeology. This includes protecting public health and safety,
groundwater resources, and the environment. The licensure requirement establishes minimum
education, experience, and examination standards that practitioners must meet before offering
hydrogeologic services to the public.
Question 8
Which of the following activities constitutes the "practice of hydrogeology" requiring licensure
under Washington law?
A) Teaching introductory geology at a community college
B) Conducting a groundwater contamination investigation for a property transaction
C) Collecting rock samples for academic research
D) Writing a popular science article about water resources
Answer
Answer: B
Rationale
4
EXAM QUESTIONS AND VERIFIED ANSWERS | 2026–2027 LATEST
UPDATE | GUARANTEED PASS | DETAILED RATIONALES | FULL
STUDY GUIDE | EXAM PREP | PRACTICE TEST | CERTIFICATION
PREPARATION
Question 1
Which prerequisite must be satisfied before an applicant can sit for the Washington
Hydrogeologist Licensing Examination?
A) Completion of an accredited civil engineering degree
B) Passing the Fundamentals of Geology (FG) examination
C) Holding a current Washington state geologist license
D) Membership in a recognized geological society
Answer
Answer: C
Rationale
The hydrogeologist specialty license is an advanced credential that builds upon the foundational
geologist license issued by Washington State. WAC 308-15-057 establishes that eligibility for the
hydrogeologist specialty examination requires holding a current Washington geologist license before
any specialty application can proceed. Without this foundational credential, the Board cannot consider
a hydrogeologist specialty application regardless of other qualifications.
Question 2
How often is the Washington Hydrogeologist Licensing Examination typically administered?
A) Once every year
B) Twice per year
C) Every two years
D) Quarterly
Answer
Answer: B
,Rationale
The hydrogeologist specialty examination is administered twice annually, aligned with the ASBOG
examination dates. This schedule allows candidates to plan their preparation and testing in
coordination with the national geology examinations, ensuring that the specialty exam integrates
smoothly into the broader licensure pathway.
Question 3
What is the minimum duration of documented professional experience required for a
hydrogeologist specialty license in Washington?
A) Two years
B) Three years
C) Five years
D) Ten years
Answer
Answer: C
Rationale
Applicants must document at least five years of relevant hydrogeology experience to qualify for the
specialty license. This extended experience requirement ensures that licensed hydrogeologists
possess the depth of practical knowledge necessary to make sound professional judgments in
groundwater investigations, remediation, and resource management.
Question 4
At least how many years of the required hydrogeology experience must be completed under
the supervision of a licensed hydrogeologist or qualified professional?
A) One year
B) Two years
C) Three years
D) Four years
Answer
Answer: C
Rationale
2
,A minimum of three years of the required experience must be supervised by a licensed hydrogeologist
or qualified professional. This supervised experience ensures that candidates receive mentorship in
the practical application of hydrogeologic principles, regulatory frameworks, and professional
standards before practicing independently.
Question 5
Which chapter of the Revised Code of Washington (RCW) defines the practice of hydrogeology
and establishes the licensing framework for geologists?
A) RCW 18.104
B) RCW 90.03
C) RCW 18.220
D) RCW 90.44
Answer
Answer: C
Rationale
RCW 18.220 is the statutory chapter that establishes the geologist licensing board, defines the
practice of geology and hydrogeology, and sets forth the licensing requirements for geologists and
specialty geologists in Washington State. RCW 18.104 addresses water well construction, while RCW
90.03 and 90.44 govern water rights and groundwater withdrawal.
Question 6
Under RCW 18.220.010, how is "hydrogeology" defined?
A) The study of surface water movement and watershed management
B) A science that involves the study of the waters of the earth, including occurrence, circulation,
distribution, chemistry, and quality
C) The engineering of water supply systems and treatment facilities
D) The study of atmospheric moisture and precipitation patterns
Answer
Answer: B
Rationale
RCW 18.220.010(8) defines hydrogeology as a science involving the study of the waters of the earth,
3
, including the study of the occurrence, circulation, distribution, chemistry, remediation, or quality of
water and its role as a natural agent that causes changes in the earth. This definition encompasses
both the scientific study of groundwater and its practical applications in resource management and
environmental protection.
Question 7
What is the primary regulatory purpose of the hydrogeologist licensing requirement in
Washington State?
A) To limit competition in the environmental consulting industry
B) To ensure that persons performing hydrogeologic work meet minimum competency standards to
safeguard public health, safety, and the environment
C) To generate revenue for the state through licensing fees
D) To require membership in professional geological organizations
Answer
Answer: B
Rationale
The licensing framework under RCW 18.220 is designed to protect the public by ensuring that only
qualified individuals practice hydrogeology. This includes protecting public health and safety,
groundwater resources, and the environment. The licensure requirement establishes minimum
education, experience, and examination standards that practitioners must meet before offering
hydrogeologic services to the public.
Question 8
Which of the following activities constitutes the "practice of hydrogeology" requiring licensure
under Washington law?
A) Teaching introductory geology at a community college
B) Conducting a groundwater contamination investigation for a property transaction
C) Collecting rock samples for academic research
D) Writing a popular science article about water resources
Answer
Answer: B
Rationale
4
