Georgia Residential Contractor Exam Study

Georgia Residential Contractor Exam Study Applications include: - Name and address of property owner - Location of property - Site plan - Type of facility - Type of water supply - Number of bedrooms - Soils information Any facility having occupancy for ___________ must provide an approved on site sewage management system two hours or more Requirements in permits: Tank size, trench length, depth and width, and special conditions Absorption field lengths are typically sized by? Number of bedrooms or gallons per day, and the percolation rate of the soil Apsorbtion field depths are determined by? Soil conditions Guide / Questions with Definitive Solutions. Terms in this set (63)  Things to consider when planning layout of system: - Site plan - Soil report - Location and elevation of plumbing stub-out - Slope of land - Property lines - Location of wells, springs, bodies of water, etc. (setbacks) - Replacement area - Other conditions Wells and Springs setback: Septic tank 50 feet Wells and Springs setback: absorption lines 100 feet Property lines setback: Septic tank 10 feet Property lines setback: absorption lines (private water) 50 feet Property lines setback: absorption lines (public water) 5 feet Bodies of water or impoundment setback: Septic tank 25 feet Bodies of water or impoundment setback: absorption lines 50 feet Streams or tributaries setback: Septic tank 25 feet Streams or tributaries setback: absorption lines 50 feet ponded wetland setback: absorption field 50 feet Buildings with a basement setback: Septic tanks and absorption lines 10 feet Buildings without a basement setback: Septic tank 10 feet Buildings without a basement setback: absorption lines 5 feet Surface drainage ditch setback: Septic tank 15 feet Trash pits and embankments setback: Septic tank and absorption field 15 feet subsurface drainage setback: absorption lines 10 feet upgrade or 30 feet downgrade Water supply lines setback: absorption lines if within 10 feet the water supply line but be at least 12 inches above the top layer of aggregate of the field lines and encased in single length larger diameter water pipe. water supply lines setback: Septic tank 10 feet After permit has been issued grading ... would adversely affect the sewage system and may render the permit void First compartment of septic tank is _____ designed to contain 2/3 of total liquid capacity Minimum liquid capacity for a 1-4 bedroom single family home? 1000 gallons Capacity of septic tank will be increased by 250 gallons for? Each additional bedroom over 4 Garbage grinders increase septic tank capacity by? 50 percent primary purpose of a septic tank is? to settle out solid matter from liquid The outlet of a septic tank should be _____ lower than the inlet? 2 inches Once installed, the septic tank should have _______ of cover? 6 inches if more than _______ of cover is to be placed over the tank a ______ will be required. 12 inches, riser An approved filter must be installed on the ___________ of the tank outlet end A grease trap is required when? grease introduced into the system exceeds 50 milligrams/liter Effluent from grease trap shall go to the _______ and not directly to the ________ septic tank, field lines All septic tank openings must be ________ sealed   Pump tank specifications - Submersible and wastewater approved - be capable of delivering required flow - cannot be placed inside the primary septic tank,must be placed in separate pumping chamber - must conform to national electrical code Dosing tanks shall have sufficient volume to ...... provide the desired dosing volume plus reserve volume, the reserve volume is equal to the estimated daily waste water flow All pumps shall have alarms (electrical connections should not be placed inside tank) aggregate for gravel systems shall be .... 1/2 - 2 inches in diameter and pre-washed absorption lines and trench bottoms shall be .... true to grade, level for entire length, and installed to run along contour of the land trench bottom depths shall be based on .... what is indicated on the permit Absorption trenches shall be no more than ____________, and spaced a minimum of ______________, center to center 36 inches, 7 feet ____________ tons of gravel aggregate per ____________ linear feet of absorption field will be needed to maintain a 12 inch depth 15, 100 Minimum depth of aggregate shall be _______ with ________ below the perforated pipe and filled to ________ above the pipe 12 inches, 6 inches, 2 inches ________________ shall be laid in the center of the trench with the perforations oriented toward the ___________ of the pipe Perforated pipe, bottom a layer or pervious ____________________ shall be placed over the aggregate before back filling building paper, straw, or similar approved material minimum of _____ to ______ inches is required over absorption lines 6, 12 Scheduled 40 PVC or equivalent solid pipe fittings with sealed, watertight, root resistant joints shall be used .... for horizontal and vertical changes in direction or grade and to cross under roadways and paved areas What should not be conducted while wet? Excavation for absorption trenches What can occur if trenches are dug while soil is wet? Smearing and potential irreversible damage to soil structure Trenches must be installed a minimum of ____________ above any permanent seasonal ground water table, rock, or other impervious soil layer 2 feet Level Field System level or sloping topography of 5 percent. All lines interconnected to form a continuous system. Lines should be 6 inches below tank outlet. a single line cam be installed up to 125 feet without interconnection Serial Field System used on sloping topography. Trenches constructed to run parallel along ground contours. minimum of four inches from tank outlet to lines. Soil between trenches must be left undisturbed. tied top to top Distribution Box Method can be used on level or sloping topography. Must be set on a level concrete pad or undisturbed earth. Made to provide equal flow to each line. minimum of 6 inches of cover. sewer pipe turned downward when emptied into d box. lines connected by 4 inch 40 PVC pipe. each line shall not exceed more than 125 feet. lines installed level or on uniform change in grade no more than 4 inches of fall per 100 feet. Chamber system Septic system using chambers of molded polyolefin plastic. The plastic is shaped to forma hollow structure with an exposed bottom area for filtration Chambers shall be designed and constructed to provide .... - ports to allow air movement and effluent access totrench sidewall absorption surfaces - interlocking - inspection port of 4 inches metal chambers are prohibited? T/F True chamber trench width 36 inches Polystyrene Aggregate - May also be used in absorption trench installations - should work the same as gravel systems - the protective sleeve holding the aggregate mustnot be cut Aerobic Treatment Unit - Must be approved - Must be installed by authorized representative - Require special installation Is the contractor required to be onsite during the final inspection? Yes