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A comprehensive set of questions and answers related to on-site sewage disposal systems (ossfs) and their regulation in texas. It covers topics such as the regulatory agencies involved, the desired level of regulation, potential diseases transmitted by inadequately treated sewage, and the importance of protecting public health and the environment. The document also delves into the roles and responsibilities of ossf professionals, including installers, site evaluators, and designated representatives. It addresses key aspects of ossf design, installation, and maintenance, including soil evaluation, hydraulic loading, and water-saving practices. The document also covers the components and functioning of septic tanks and drainfields, as well as the importance of proper wastewater treatment and disposal methods. It serves as a valuable resource for individuals seeking to understand the principles and practices of ossf systems and their regulation in texas.
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Acidity Basicity
solids Dissolved Oxygen
Biochemical oxygen demand
water born disease
A groundwater chemical contaminant that can result from septic tanks and
methoemoglobinmia
Solids Gases Fats and greases DO BOD PH What is the criteria that can be used to determine if a subsurface OSSF system is
No Water is surfacing or pooling above ground
An individual who visits a site and conducts soil evaluations and a site survey is a ( n ) a. apprentice b. Site evaluator c. authorized agent
New OSSF licenses are issued for a term of .An individual must renew the license complete of TCEQ approved continuing education courses in
an Individuals working as a or in any capacity for an OSSF cannot work as an installer designer for a fee , or private site
and Permitting agency
Installer II Maintenance provider
application
Notarized experience Statements Paying class and application Fees Completing the appropriate training Course Penalties for violating the laws , rules , or regulations covering OSSF systems can
Injunction civil Suit Administrative What should be included in an evaluation of a lot for design and installation of a
Soil and Geolgic Setbacks Flood hazards Give a brief description of the three textural classes of soil suitable for a standard
= Description Sandy Class 2 - Description Course loamy Class 3 - Description fine loamy and Sandy Clay
2b
b. inadequate planning c. hydraulic overloading
The size of OSSF systems are normally based upon the a. lot size b. soil profile c. hydraulic loading
Some malfunctioning OSSF systems can be made to function properly with
Elimination of leaks
Faucet aerators Reduce flow faucet Pressure reducinh valves
Not using the toilet to dispose of trash such a cigarette butts tissue paper or sanitary napkins Not leaving the faucet running when shaving or brushing teeth Reducing or eliminating the use of garbage disposals Information on boundaries and property lot size , soil conditions , and location of existing or planned buildings is obtained during the a. permit application b. site evaluation c. construction
should NOT be allowed over the OSSF treatment unit or drainfield a. Vegetation b. Mowing c. Earth fill
List three of the materials acceptable for the construction of treatment and pump
Other materials approved by TECQ Reinforced plastic polyethylene Complete the following requirements for a house sewer. The pipe from the house to the septic tank must have a minimum inside diameter of no less than 3 inches. b. The slope of the house sewer shall be no less than 1/8 fall per foot of pipe.. The stub out location should be at the highest possible elevation with respect to the house foundation to avoid deep septic tanks. d. The line must be of Watertight construction e A two way clean out plug must be provided between the building and the septic tank. f. All fittings should be of the Sanitary type. g. An additional cleanout may be single type ) must be provided within 5 of every
b. 1/ c .highest. d. Watertight e. clean out septic f. Sanitary g. 5 and 50 '
rate determined by Class Complete the following requirements for a standard absorptive drainfield a. Minimum depth is " inches. b. Minimum separation between drainfield excavations is ' feet. c. In most cases , the maximum drainfield depth is ' feet.
b. 3 ' c. In ' d. The Clean Gravel A of shall be placed on top op the porous media before
The backfill above the barrier and gravel should be type , or
Which of the following is true of aerobic treatment plants? a. Able to maintain a minimum DO of 4.0 mg / L
a. Chlorinator failure b. Mechanical aerator failure c. Failure to install a trash trap
Mechanical aerator failure and need for wasting? Which of the following is a way of evaluating an aerobic treatment plant for excessive solids a. DO test. b. BOD5 analysis c. 30 - min. settling test
mg / L Which of the following is true of an intermittent sand filter? a. Provides secondary wastewater treatment b Has a maximum surface loading rate of 1.2 gal./day/ft. c. Requires at least 24 in. of filter media that meets definite specifications ( ASTM C - 33 )
Trickling filters and wetlands a. are anaerobic treatment systems b. are secondary treatment processes c. are widely used across Texas for OSSF treatment
Which of the following considerations should receive the greatest emphasis in selecting a type of OSSF system disposal option? a. System cost b. Electrical rates c. Soil and site conditions
conditions would include On a west Texas site with 16 in of Class Ia soil over fractured rock suitable OSSF systems a. lined or unlined ETs b. lined ET or LPD systems c. lined ET or mound systems
lined ET or mound systems chamber The minimum soil requirements for leaching chambers or gravelless pipe systems following a septic tank are A. 2 ft. of Class Ib , II , or III soil below the field bottom B. the same as for a standard absorptive drainfield C. 4 ft. of permeable soil with no more than seasonable saturation
gal./day Which systems routinely require a pump tank? a. LPD and leaching chambers b. Gravelless pipe , sand filters and LPD c. Surface and drip irrigation and sand filters
Surface and drip irrigation and sand filters The setback from a public water well for an aerobic plant is a. 50 feet b. 100 feet c. 150 feet
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
A licensed maintenance provider
Which OSSF disposal systems are routinely required to have maintenance contracts? a. LPD mounds and lined ETs b. Sand filters with LPD disposal c.LPD and surface application systems
subsurface drip irrigation What is the purpose of requiring an affidavit to be filed with the county real property records for a surface application system? a. To ensure a permit was obtained b. To ensure the future DR has a permanent record c. To notify the current property owner of the type of OSSF system used and maintenance requirements d. To notify future property owners of the type of
To notify future property owners of the type of OSSF system used and the maintenance requirements Required samples for testing from a surface application system are collected from a .all chambers b. the aeration chamber. c. the surface of the clarifier
effluent line port new three bedroom
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
from the drainfield back to the treatment unit 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