OSSF DR Test Questions Answered Correctly Latest Update 2025
Beginning of OSSF statewide regulation - Answers 1989
___ adopted the current OSSF Rules in 1997 and revised them several times. - Answers TCEQ
DR job responsibilities - Answers - review permit applications
-complaint investigation
- record keeping
State regulation transferred to Texas Water Commission - Answers 1992
OSSF - Answers - produces not more than 5,000 GPD of waste
-used only for disposal on-site
-disposal through soil or as a vapor
Authorized Agent - Answers local government entity authorized by TCEQ to enforce OSSF laws
Designated Representative - Answers Designated by authorized agent or TCEQ to review permit apps
and planning materials, and conduct inspections
Site Evaluator - Answers Must hold valid SE or Professional Engineer's license (PE)
Requirement for installer II and DR to be licensed became effective - Answers 1998
Ten Acre Rule - Answers Permitting exemption
-property is 10 acres or larger
- single family
- disposal lines at least 100 ft from property line
- does not create a nuisance
Minimum lot size for subdivisions serviced by public water - Answers minimum 1/2 acre
Minimum lot size for subdivisions serviced by private water - Answers minimum 1 acre
Legal penalties for violating OSSF regulations - Answers - criminal penalties
-court injunction
- administrative penalties
, OSSF licenses that require previous experience - Answers Installer II, MP, SE
OSSF licenses are issued for a term of... - Answers 3 years
9 steps of permit proces - Answers 1. site evaluation
2. select OSSF
3. system planned by PE or RS
4. permit application
5. application reviewed by permit authority
6. ATC
7. construction
8. system inspection
9. ATO
Planning materials for an OSSF utilizing SECONDARY TREATMENT must be prepared by a... - Answers PE
or RS
OSHA requires that all excavations over __ feet deep be sloped/shored - Answers 5 feet
Important conversions - Answers - 1 acre = 43,560 ft^2
- 1 cubic foot = 7.48 gal
- 1 cubic foot = 27 cubic yd
BOD Formula - Answers [BOD (mg/L) * 8.34 * Q (GPD) ] / 1,000,000
Pathogens - Answers disease-causing microorganisms
Microorganisms in wastewater include.. - Answers bacteria, viruses, protozoa, helminths
Fecal coliform (E.coli) is an indicator of? - Answers sewage contamination
An inorganic chemical that affects human health is ... - Answers nitrate
How is nitrogen removed from the soil? - Answers plant uptake
Routes of contamination - Answers - neighborhood pollution
- GW contamination
- surface water pollution
Beginning of OSSF statewide regulation - Answers 1989
___ adopted the current OSSF Rules in 1997 and revised them several times. - Answers TCEQ
DR job responsibilities - Answers - review permit applications
-complaint investigation
- record keeping
State regulation transferred to Texas Water Commission - Answers 1992
OSSF - Answers - produces not more than 5,000 GPD of waste
-used only for disposal on-site
-disposal through soil or as a vapor
Authorized Agent - Answers local government entity authorized by TCEQ to enforce OSSF laws
Designated Representative - Answers Designated by authorized agent or TCEQ to review permit apps
and planning materials, and conduct inspections
Site Evaluator - Answers Must hold valid SE or Professional Engineer's license (PE)
Requirement for installer II and DR to be licensed became effective - Answers 1998
Ten Acre Rule - Answers Permitting exemption
-property is 10 acres or larger
- single family
- disposal lines at least 100 ft from property line
- does not create a nuisance
Minimum lot size for subdivisions serviced by public water - Answers minimum 1/2 acre
Minimum lot size for subdivisions serviced by private water - Answers minimum 1 acre
Legal penalties for violating OSSF regulations - Answers - criminal penalties
-court injunction
- administrative penalties
, OSSF licenses that require previous experience - Answers Installer II, MP, SE
OSSF licenses are issued for a term of... - Answers 3 years
9 steps of permit proces - Answers 1. site evaluation
2. select OSSF
3. system planned by PE or RS
4. permit application
5. application reviewed by permit authority
6. ATC
7. construction
8. system inspection
9. ATO
Planning materials for an OSSF utilizing SECONDARY TREATMENT must be prepared by a... - Answers PE
or RS
OSHA requires that all excavations over __ feet deep be sloped/shored - Answers 5 feet
Important conversions - Answers - 1 acre = 43,560 ft^2
- 1 cubic foot = 7.48 gal
- 1 cubic foot = 27 cubic yd
BOD Formula - Answers [BOD (mg/L) * 8.34 * Q (GPD) ] / 1,000,000
Pathogens - Answers disease-causing microorganisms
Microorganisms in wastewater include.. - Answers bacteria, viruses, protozoa, helminths
Fecal coliform (E.coli) is an indicator of? - Answers sewage contamination
An inorganic chemical that affects human health is ... - Answers nitrate
How is nitrogen removed from the soil? - Answers plant uptake
Routes of contamination - Answers - neighborhood pollution
- GW contamination
- surface water pollution
