EXAMINATION 2024.2025 |
GUARANTEED PASS
Public Sewer Connection - ACCURATE ANSWERS✔✔ Private
residence must connect if w/in 300' or for any commercial bldg. w/in
300' that has flows less than 1500 gpd. Commercial w/ flows = to or
greater than 1500 gpd must connect if sewer is w/in 1000'.
Unless physical barrier, ordinance, or cannot be done w/ individual line
(4" line)-then PSD system is OK.
Acceptable Pipe Materials - ACCURATE ANSWERS✔✔ Vitrified clay,
ductile iron, or plastic.
Anything after the tank or from distribution box has to be vitrified clay
or plastic.
Schedule 40 or Greater - ACCURATE ANSWERS✔✔ under roads,
driveways, or parking areas
Gravity Slope - ACCURATE ANSWERS✔✔ Diameter: 4" pipe + min.
slope of 12" per 100'
Building sewers in excess of 50' should have what? - ACCURATE
ANSWERS✔✔ A C/O @ least every 50' from building to tank,
distribution box, or ATU
,Creviced Limestone Formation - ACCURATE ANSWERS✔✔ SS
system cannot be installed where bottom of system is less than 4' from
top of limestone
If limestone is known to be present a soil test must be done @ least 4'
deeper than where the bottom of the trench will be
How far away can quick disconnect be? - ACCURATE ANSWERS✔✔
no more than 50' away from the device & w/in sight of
Experimental Use Permits - ACCURATE ANSWERS✔✔ min. of 10
experimental systems installed b4 unconditional approval granted.
Permit valid for 2 yrs & evaluated @ end of 2 yrs.
2 options for garbage grinders - ACCURATE ANSWERS✔✔ 1. solids
retention tank btwn WW source & septic tk. for kitchen waste only.
Needs to be 50% of the size of the designed septic tank w/ a min. of 500
gals.
2. A septic tank receiving all flows sized as 50% of the septic tank size +
septic tank size. i.e., septic tk = 1500 gals. /2 = 750 + 1500 = 2250
(would need 2500 gal tk)
How long should a homeowner keep maint. records for their system? -
ACCURATE ANSWERS✔✔ the life of the system
When should the 1st maintenance of a septic tank after installation be
completed for a residence? - ACCURATE ANSWERS✔✔ Prior to or
, within 3 yrs. After initial inspection it can be done once every 5 yrs. Can
be done by everyone + homeowner
If sludge layer /suspended solids are greater than 33% . . . - ACCURATE
ANSWERS✔✔ Must pump tank and perform maintenance
When should a septic system be evaluated initially after installation for a
non-residential bldg? - ACCURATE ANSWERS✔✔ prior to or w/in 3
yrs. After that it should be done @ least every 3 yrs.
Owner cannot do. has to be engineer, env. health practitioner, member of
dept, HD, or septic contractor
Aerobic Treatment Unit Evaluations - ACCURATE ANSWERS✔✔ 1
every 6 mos @ least (same ppl) + HOMEOWNER as long as they
follow manufacturer's requirements & proper maintenance
What is the maint. schedule for SFs & WSPs w/ surface discharges? -
ACCURATE ANSWERS✔✔ @ least 1 per yr. + H.O. if rules r
followed. Pumped when solids & scum greater than 33%
Can a H.O. install & maintain a septic system on his/her property? -
ACCURATE ANSWERS✔✔ Yes
Who can perform the excavation for a septic system? - ACCURATE
ANSWERS✔✔ A licensed installer (employee while supervised) or the
property owner.