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Exam (elaborations)

OSSF Installer 2 Exam Questions and Answers 2025

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OSSF Installer 2 Exam Questions and Answers 2025 ______should NOT be allowed over the OSSF treatment unit or drainfield a . Vegetation b . Mowing c . Earth fill d . Rainfall runoff - CORRECT ANSWER-d . Rainfall runoff _____adopted the current OSSF Rules in 1997 and revised them several times . - CORRECT ANSWER-TCEQ A ______ is a disease-causing microorganism - CORRECT ANSWER-Pathogen A ____________of __________shall be placed on top op the porous media before backfilling - CORRECT ANSWER-Permeable barrier geo fabric A drip irrigation system must a . not be installed in Class IV soils b . be installed at a minimum depth of 18 in . c . have pressures adjusted to less than 10 psi on distribution lines d . be equipped with mechanisms to flush from the drainfield back to the treatment unit - CORRECT ANSWER-d . be equipped with mechanisms to flush from the drainfield back to the treatment unit A groundwater chemical contaminant that can result from septic tanks and leachfields is which can cause_____in infants - CORRECT ANSWER-Nitrates and methoemoglobinmia A legal maintenance company for a surface application OSSF system using proprietary aerobic plant must have an employee who is which of the following ? a . A licensed maintenance provider b . A registered maintenance technician c . A registered installer and maintenance technician d . A registered installer or class D wastewater operator - CORRECT ANSWER-a . A licensed maintenance provider A major reason for wastewater system failure is a homeowner waste b . inadequate planning c . hydraulic overloading d . oils grease and fats - CORRECT ANSWER-c . hydraulic overloading grease A mound or soil substitution drainfield often used a . In wetland areas b . Without treatment c . In conjunction with secondary treatment d.When existing soils will not provide adequate treatment due to depth or texture - CORRECT ANSWER-d . When existing soils will not provide adequate treatment due to depth or texture

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Uploaded on
February 13, 2025
Number of pages
14
Written in
2024/2025
Type
Exam (elaborations)
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Questions & answers

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OSSF Installer 2 Exam Questions and
Answers 2025

______shouldzNOTzbezallowedzoverzthezOSSFztreatmentzunitzorzdrainfieldz

az.zVegetationz

bz.zMowingz

cz.zEarthzfillz

dz.zRainfallzrunoffz-zCORRECTzANSWER-dz.zRainfallzrunoff



_____adoptedzthezcurrentzOSSFzRuleszinz1997zandzrevisedzthemzseveralztimesz.z-zCORRECTzANSWER-
TCEQ



Az______ziszazdisease-causingzmicroorganismz-zCORRECTzANSWER-Pathogen



Az____________ofz__________shallzbezplacedzonztopzopzthezporouszmediazbeforezbackfillingz-
zCORRECTzANSWER-Permeablezbarrierzgeozfabric




Azdripzirrigationzsystemzmust

az.znotzbezinstalledzinzClasszIVzsoilsz

bz.zbezinstalledzatzazminimumzdepthzofz18zinz.z

cz.zhavezpressureszadjustedztozlesszthanz10zpsizonzdistributionzlinesz

dz.zbezequippedzwithzmechanismsztozflushzfromzthezdrainfieldzbackztoztheztreatmentzunitz-
zCORRECTzANSWER-

dz.zbezequippedzwithzmechanismsztozflushzfromzthezdrainfieldzbackztoztheztreatmentzunit



Azgroundwaterzchemicalzcontaminantzthatzcanzresultzfromzsepticztankszandzleachfieldsziszwhichzcanzcause
_____inzinfantsz-zCORRECTzANSWER-Nitrateszandzmethoemoglobinmia



AzlegalzmaintenancezcompanyzforzazsurfacezapplicationzOSSFzsystemzusingzproprietaryzaerobiczplantzmustz
havezanzemployeezwhoziszwhichzofzthezfollowingz?z

, az.zAzlicensedzmaintenancezproviderzbz.zAzregisteredzmaintenanceztechnicianz

cz.zAzregisteredzinstallerzandzmaintenanceztechnicianz

dz.zAzregisteredzinstallerzorzclasszDzwastewaterzoperatorz-zCORRECTzANSWER-
az.zAzlicensedzmaintenancezprovider



Azmajorzreasonzforzwastewaterzsystemzfailurezisz

azhomeownerzwastez

bz.zinadequatezplanningz

cz.zhydrauliczoverloading

d . oilszgreasezandzfatsz-zCORRECTzANSWER-cz.zhydrauliczoverloadingzgrease
z z z




Azmoundzorzsoilzsubstitutionzdrainfieldzoftenzusedz

az.zInzwetlandzareasz

bz.zWithoutztreatmentz

cz.zInzconjunctionzwithzsecondaryztreatmentz

d.Whenzexistingzsoilszwillznotzprovidezadequateztreatmentzdueztozdepthzorztexturez-zCORRECTzANSWER-
dz.zWhenzexistingzsoilszwillznotzprovidezadequateztreatmentzdueztozdepthzorztexture



Azveryzcommonzreasonzforzsoilzabsorptionzsystemzfailuresziszinadequatez-zCORRECTzANSWER-lotzSize



AnzimportantzpartzofzthezinstallationzofzanzLPDzsystemzisz

az.zcheckingzandzadjustingzpressurezonzlines

z b.rigidlyzstabilizingzeachzlinezaszgravelziszplacedz

cz.zthezinstallationzofzatzleastzonezinspectionzportzperzline

d.thezprecisezgradezonzthezdosingzpipez(z1zinz.zfallz/z100zfeetz)z-zCORRECTzANSWER-
z

az.zcheckingzandzadjustingzpressurezonzlines



AnzindividualzwhozholdszazvalidzlicensezfromzTCEQzandzwhoziszcompensatedzbyzanotherzindividualztozcons
tructzinstallz,zalterz,zorzrepairzanzOSSFziszaz(znz)z

az.zInstallerz
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