_____________ are an acceptable means of sewage disposal for
a facility not served by water under pressure. Correct Answers
Pit Privies
A properly designed and installed system will adequately treat
and dispose of watstewater, and will ensure the protection of our
__________ resources for future generations. Correct Answers
drinking water
A properly installed septic tank must be placed on ___(1)___
earth, must be ___(2)___, and constructed to prevents ___(3)___
from entering the tank. Correct Answers 1) undisturbed
2) level
3) surface water
A subsurface drainage system should come no closer than
___(1)___ upgrade or ___(2)___ downgrade from an absorption
line. Correct Answers 10'
30'
Absorption field depths are determined by the ______ on the
property. Correct Answers soil conditions
Absorption field lengths are generally determined by the
___(1)___ in the home or the estimated ___(2)___ water usage
Correct Answers 1) number of bedrooms
2) gallon per day
Absorption Fields: Aggregate, or gravel
,The aggregate itself shall be ______ inches in diameter and pre-
washed. Correct Answers 1/2" - 2"
Aerobic Treatment:
Must be approved for use by the ________________. and must
meet testing criteria and perfomance by ANSI/NSF standard No.
40 for Residential Wastewater Treatment Systems and installed
by an _____________ of the manufacturer. Correct Answers
Department Technical Review Committee
authorized representative
After having completed the application process, a _________ is
conducted. Correct Answers site inspection
After receiving final approve, a system can then be ________.
Correct Answers back-filled
After the permit has been issues, any grading, filling or other
site modifications that would adversely affect the sewage system
may render the permit _____. Correct Answers VOID
Aggregate absorption lines and trench bottoms shall be
___(1)____, that is level for their entire length and installed to
run along the ___(2)___ of the land. Correct Answers 1) true to
grade
2) contour
Aggregate Fields:
__________ or equivalent shall be sued for horizontal and
vertical changes in direction or grade and to cross under
roadways or paved areas. Correct Answers Schedule 40 PVC
, Aggregate Fields:
A layer of pervious building ___(1)___ , ___(2)___, or similar
permeable material approved by the Departments technical
review committee shall be placed over the aggregate before back
filling. Correct Answers 1) paper
2) straw
Aggregate Fields:
A minimum of ___(1)___ to ___(2)___ of earth cover is
required over absorption lines. Correct Answers 1) 6"
2) 12"
Aggregate Fields:
Absorption trenches from conventional septic tanks must be
installed a minimum of ____ above any permanent or seasonal
groundwater table, rock, or other impervious soil layer. Correct
Answers 2'
Aggregate Fields:
Excavation for absorption trenches in soil other than sands
should not be conducted when ____, due to the potential
irreversible damage to soil structure, such as ___(2)___ and
___(3)___. Correct Answers 1) wet
2) compaction
3) smearing
Aggregate Fields:
On average ___(1)____ of gravel aggregate per ___(2)___ linear
feet of absorption field at a width of 36 inches will be needed to