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SEPTIC LICENSE EXAM ALL
QUESTIONS AND CORRECT DETAILED
ANSWERS FOR 2026 |ALREADY A
GRADED |HIGHLY RECOMMENDED BY
EXPERTS
You obtain permit to install system with lateral trenches no deeper than
10 inches. If home builder tells you that they do not want septic tank
leaving hump in yard. What do you do?
A. Bury tank deep enough in ground so no hump
B. Install low profile septic tank
C. Install regular septic tank + add fill soil dirt around tank so no hump
left when yard is graded
D. Either b or c - ANSWER- d. Both b + c = install low profile septic
tank or
Install regular septic tank + add fill soil dirt around tank so no hump left
when yard is graded
Wire test is
A. Test to determine if electrical wiring properly installed
B. Test to determine whether lateral lines installed level
C. Field test to determine if soil moisture will cause damage during
lateral line excavation
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D. All above - ANSWER- c. Field test to determine if soil moisture will
cause damage during lateral line excavation
Maximum length for individual conventional lateral trench is
A. 100 feet
B. 200 feet
C. No maximum limit
D. 70 feet - ANSWER- b. 200 feet
The appropriate minimum spacing of conventional rock trench is
A. 5 feet on centers
B. 8 feet side wall to side wall
C. 8 feet on centers - ANSWER- c. 8 feet on centers
The appropriate minimum spacing of low pressure pipe system is
A. 5 feet on centers
B. 8 feet side wall to side wall
C. 8 feet on centers - ANSWER- a. 5 feet on centers
The appropriate minimum spacing for lateral beds is
A. 5 feet on centers
B. 8 feet side wall to side wall
C. 8 feet on centers - ANSWER- b. 8 feet side wall to side wall
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The setback distance from lateral trench for wells is
A. 25 feet
B. 50 feet
C. 70 feet - ANSWER- c. 70 feet
The setback distance from lateral trench for cistern is
A. 25 feet
B. 50 feet
C. 70 feet - ANSWER- c. 70 feet
The setback distance from lateral trench for streams is
A. 25 feet
B. 50 feet
C. 70 feet - ANSWER- a. 25 feet
The setback distance from lateral trench for lakes is
A. 25 feet
B. 50 feet
C. 70 feet - ANSWER- b. 50 feet
Back filling of system is permitted prior to final inspection providing
inspections ports are placed in lateral trenches - ANSWER- false
SEPTIC LICENSE EXAM ALL
QUESTIONS AND CORRECT DETAILED
ANSWERS FOR 2026 |ALREADY A
GRADED |HIGHLY RECOMMENDED BY
EXPERTS
You obtain permit to install system with lateral trenches no deeper than
10 inches. If home builder tells you that they do not want septic tank
leaving hump in yard. What do you do?
A. Bury tank deep enough in ground so no hump
B. Install low profile septic tank
C. Install regular septic tank + add fill soil dirt around tank so no hump
left when yard is graded
D. Either b or c - ANSWER- d. Both b + c = install low profile septic
tank or
Install regular septic tank + add fill soil dirt around tank so no hump left
when yard is graded
Wire test is
A. Test to determine if electrical wiring properly installed
B. Test to determine whether lateral lines installed level
C. Field test to determine if soil moisture will cause damage during
lateral line excavation
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D. All above - ANSWER- c. Field test to determine if soil moisture will
cause damage during lateral line excavation
Maximum length for individual conventional lateral trench is
A. 100 feet
B. 200 feet
C. No maximum limit
D. 70 feet - ANSWER- b. 200 feet
The appropriate minimum spacing of conventional rock trench is
A. 5 feet on centers
B. 8 feet side wall to side wall
C. 8 feet on centers - ANSWER- c. 8 feet on centers
The appropriate minimum spacing of low pressure pipe system is
A. 5 feet on centers
B. 8 feet side wall to side wall
C. 8 feet on centers - ANSWER- a. 5 feet on centers
The appropriate minimum spacing for lateral beds is
A. 5 feet on centers
B. 8 feet side wall to side wall
C. 8 feet on centers - ANSWER- b. 8 feet side wall to side wall
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The setback distance from lateral trench for wells is
A. 25 feet
B. 50 feet
C. 70 feet - ANSWER- c. 70 feet
The setback distance from lateral trench for cistern is
A. 25 feet
B. 50 feet
C. 70 feet - ANSWER- c. 70 feet
The setback distance from lateral trench for streams is
A. 25 feet
B. 50 feet
C. 70 feet - ANSWER- a. 25 feet
The setback distance from lateral trench for lakes is
A. 25 feet
B. 50 feet
C. 70 feet - ANSWER- b. 50 feet
Back filling of system is permitted prior to final inspection providing
inspections ports are placed in lateral trenches - ANSWER- false
