On-Site Sewage Contractor Exam Final
Exam And Correct Answers.
Absorption field lengths are determined - Answer by the # of bedrooms in a home or estimated gallon
per day water usage
Absorption field depths are determined by - Answer the soil conditions on the property
From wells to springs - Answer a minimum of 50' from septic tanks and a minimum of 100' from
absorption fields
From property lines served by the public - Answer a minimum of 10' from septic tanks and a minimum
of 5' from the absorption fields
From property lines served by individual - Answer absorption lines must be 50' from adjacent property
unless development is preplanned
From bodies of water or impoundments - Answer minimum of 25' from septic tanks and min 50' from
absorption fields
From streams or tributaries - Answer a min of 25' from septic tanks and a min of 50' from absorption
fields
From ponded wetlands - Answer a minimum of 50' for absorption fields
Building with a basement - Answer septic tank and absorption fields a minimum of 10' from foundation
From a drainage ditch, trash pits, and embankments - Answer 15 feet
, If the water supply crosses or comes within 10 feet of the absorption field - Answer the water supply
line shall be installed at least 12 inches above the top of the aggregate layer of the absorption field line
and shall be encased in single-length larger diameter
After the permit has been issued - Answer any grading, filling or other site modifications that would
adversely affect the system will render the permit void
the first component of an on-site sewage management system - Answer the septic tank
Septic tanks are generally pre-cast with - Answer concrete and delivered to the site. They can also be
poured in place when necessary
Septic tanks must have 2 compartments with the first - Answer designed to contain at least 2/3 of the
total liquid capacity of the tank
Septic tanks may be constructed from material of than concrete only when - Answer approved by the
department's technical review committee
Regardless of the tank construction the minimum liquid capacity of a septic tank for one, two, three or
four bedroom homes - Answer shall not be less than 1,000 gallon
For each additional bedroom over 4 - Answer the septic tank capacity shall increase by 250 gallons
When garbage grinders are used - Answer septic tank capacity shall be increased by 50%
The primary purpose of a septic tank is to - Answer provide a means of settling out solid matter from
the liquid
By design the outlet of a septic tank should be - Answer two inches lower than the inlet
Once installed, the tank should have a - Answer minimum of 6 inches of cover
Exam And Correct Answers.
Absorption field lengths are determined - Answer by the # of bedrooms in a home or estimated gallon
per day water usage
Absorption field depths are determined by - Answer the soil conditions on the property
From wells to springs - Answer a minimum of 50' from septic tanks and a minimum of 100' from
absorption fields
From property lines served by the public - Answer a minimum of 10' from septic tanks and a minimum
of 5' from the absorption fields
From property lines served by individual - Answer absorption lines must be 50' from adjacent property
unless development is preplanned
From bodies of water or impoundments - Answer minimum of 25' from septic tanks and min 50' from
absorption fields
From streams or tributaries - Answer a min of 25' from septic tanks and a min of 50' from absorption
fields
From ponded wetlands - Answer a minimum of 50' for absorption fields
Building with a basement - Answer septic tank and absorption fields a minimum of 10' from foundation
From a drainage ditch, trash pits, and embankments - Answer 15 feet
, If the water supply crosses or comes within 10 feet of the absorption field - Answer the water supply
line shall be installed at least 12 inches above the top of the aggregate layer of the absorption field line
and shall be encased in single-length larger diameter
After the permit has been issued - Answer any grading, filling or other site modifications that would
adversely affect the system will render the permit void
the first component of an on-site sewage management system - Answer the septic tank
Septic tanks are generally pre-cast with - Answer concrete and delivered to the site. They can also be
poured in place when necessary
Septic tanks must have 2 compartments with the first - Answer designed to contain at least 2/3 of the
total liquid capacity of the tank
Septic tanks may be constructed from material of than concrete only when - Answer approved by the
department's technical review committee
Regardless of the tank construction the minimum liquid capacity of a septic tank for one, two, three or
four bedroom homes - Answer shall not be less than 1,000 gallon
For each additional bedroom over 4 - Answer the septic tank capacity shall increase by 250 gallons
When garbage grinders are used - Answer septic tank capacity shall be increased by 50%
The primary purpose of a septic tank is to - Answer provide a means of settling out solid matter from
the liquid
By design the outlet of a septic tank should be - Answer two inches lower than the inlet
Once installed, the tank should have a - Answer minimum of 6 inches of cover
