TCEQ
1 foot = 0.433 psi
1 MGD = 694.4 gpm
1 MGD = 694.4 gpm
1 MGD = _____ gpm
1 mile = 5,280 feet
1 mile = ______ feet
Solder and flux used on drinking water systems must not exceed 0.2% lead content.
Solder and flux used on drinking water systems must not exceed ___% lead content.
Systems using Chloramines must have a minimum residual of ___ mg/L.
Systems using Chloramines must have a minimum residual of ___ mg/L.
The Safe Drinking Water Act of 1974 is the main federal law that governs the drinking water industry.
The _____ _______ _____ Act of 1974 is the main federal law that governs the drinking water industry.
The chlorine demand represents the amount of chlorine used by reducing agents and other impurities before a chlorine residual is formed.
The chlorine _______ represents the amount of chlorine used by reducing agents and other impurities before a chlorine residual is formed.
he disinfection process is normally at the end of the treatment plant.
The disinfection process is normally at the ____ of the treatment plant.
A Texas Class D Water Operator cannot renew his license if he operates a groundwater treatment system with 250 or more service connections.
A Texas Class D Water Operator cannot renew his license if he operates a groundwater treatment system with ____ or more service connections.
A water operator license is valid for 3 years after it is issued.
A water operator license is valid for ___ years after it is issued.
A water system must notify the executive director (TCEQ) within ___ hours of learning about an MCL violation.
A water system must notify the executive director (TCEQ) within ___ hours of learning about an MCL violation.
Pipe and fittings that come in contact with drinking water cannot contain more than 0.25% lead based on a weighted average.
A water system must notify the executive director (TCEQ) within ___ hours of learning about an MCL violation.
After flushing and disinfecting newly installed water line, a bacteriological sample should be collected every 1,000 feet along the new water main.
After flushing and disinfecting newly installed water line, a bacteriological sample should be collected every _____ feet along the new water main.
All community water systems must provide their customers with a Consumer Confidence Report each year which lists water quality data.
All community water systems must provide their customers with a ________ _________ ______ each year which lists water quality data.
An aquifer is a porous, underground formation that is capable of delivering large quantities of water.
An _______ is a porous, underground formation that is capable of delivering large quantities of water.
An air line is commonly used to determine the water level in well.
An air line is commonly used to determine the _____ _____ in well.
Bacteriological (coliform) sample bottles should not be rinsed out prior to sample collection.
Bacteriological (coliform) sample bottles should not be _____ ____ prior to sample collection.
Bacteriological (coliform) samples should be collected in a sterile bottle.
Bacteriological (coliform) samples should be collected in a ______ bottle.
Gloves, face shields, hearing protection, hard hats, and safety glasses are all examples of Personal Protective Equipment.
Gloves, face shields, hearing protection, hard hats, and safety glasses are all examples of _______ ________ _________.
Groundwater is generally low in turbidity and organic contaminants but high in mineral content.
Groundwater is generally ___ in turbidity and organic contaminants but ___ in mineral content.
Hepatitis, typhoid, cholera, and dysentery are all waterborne diseases that are preventable with proper disinfection.
Hepatitis, typhoid, ______, and _________ are all waterborne diseases that are preventable with proper disinfection.
If system pressure drops below 20 psi, the cause should be determined and corrected immediately.
If system pressure drops below 20 psi, the cause should be determined and corrected __________.
If system pressure drops below 20 psi, the water system must notify TCEQ and issue a "Boil Water Notice".
If system pressure drops below ___ psi, the water system must notify TCEQ and issue a "Boil Water Notice".
Livestock and septic tanks must be separated from a public water supply well by a minimum distance of 50 feet.
Livestock and septic tanks must be separated from a public water supply well by a minimum distance of ___ feet
Microbiological test records must be maintained for a period of 5 years.
Microbiological test records must be maintained for a period of __ years.
Most Calcium Hypochlorite (HTH) contains about 65% available chlorine.
Most Calcium Hypochlorite (HTH) contains about ___% available chlorine.
OSHA approved shoring is required to prevent trench cave-in when the trench is 5 feet or deeper.
OSHA approved shoring is required to prevent trench cave-in when the trench is ____ feet or deeper.
One psi is equivalent to ____ feet of head.
One psi is equivalent to ____ feet of head.
Only the person who placed the lock and tag on the energy isolation device is authorized to remove them.
Only the person who placed the ___ and ___ on the energy isolation device is authorized to remove them
Potable water contains a ______ residual and no harmful _____________.
Potable water contains a ______ residual and no harmful _____________.
Public wells must be separated from feedlots, sewage treatment plants, and landfills by a minimum distance of 500 feet.
Public wells must be separated from feedlots, sewage treatment plants, and landfills by a minimum distance of ____ feet.
Volume, gal = L x W x D x 7.48 gal/cu ft
Volume, gal = 0.785 x D x D x Depth x 7.48 7.48 gal/cu ft
Water level in storage tanks is controlled by an altitude valve.
Water level in storage tanks is controlled by an ______ valve.
Water mains are sized to meet peak flow demand, average flow, future growth, and fire flow requirements.
Water mains are sized to meet ____ flow demand, _______ flow, ______ growth, and fire flow requirements.
Water mains that dead-end are required to be flushed monthly.
Water mains that dead-end are required to be flushed ______.
Water pH below 7 is considered acidic.
Water pH below 7 is considered _____.
Water systems using free chlorine must have a minimum residual of ___ mg/L.
Water systems using free chlorine must have a minimum residual of ___ mg/L.
lb/day = (Flow, MGD) x (Dose, mg/L) x 8.34
What is the formula for calculating pounds per day (lb/day) of chlorine?
Pounds Chlorine = Pounds at 100% ÷ % Available Free Chlorine Ex: Pounds of 65% HTH = 10 lb Cl2 gas ÷ 0.65 = 15.4 lb HTH
What is the formula to convert pounds of 100% chlorine gas to pounds of 65% HTH?
When DPD reacts with a high chlorine residual in a water sample, it turns the sample ____.
When DPD reacts with a high chlorine residual in a water sample, it turns the sample ____.
A Water Distribution System is made up of Mains, Valves, Service lines, Fire Hydrants, Storage, Pumps, Motors, & Meters.
A Water __________ System is made up of Mains, Valves, Service lines, Fire Hydrants, Storage, Pumps, Motors, & Meters
A jar test is performed to determine the most effective coagulant dose.
A ___ test is performed to determine the most effective coagulant dose.
A service line is the line running from the main to the customers meter.
A ______ ______ is the line running from the main to the customers meter.
A check valve is typically installed on the discharge of a centrifugal booster pump.
A ______ valve is typically installed on the discharge of a centrifugal booster pump.
A corporation stop is typically found tapped into the main line.
A __________ ______ is typically found tapped into the main line.
A community water system must be able to produce 0.6 gpm for every service connection in the system during peak demand.
A community water system must be able to produce ___ gpm for every service connection in the system during peak demand.
A fire hydrant should not be placed on main lines smaller than ____ inches in diameter.
A fire hydrant should not be placed on main lines smaller than ____ inches in diameter.
A fire hydrant's primary function is to provide a water supply for fire-fighting.
A fire hydrant's primary function is to provide a water supply for __________.
A jar test is intended to simulate the coagulation, flocculation and sedimentation processes.
A jar test is intended to simulate the __________, _________ and ___________ processes.
A poisonous gas that smells like rotten eggs is ________ _______.
A poisonous gas that smells like rotten eggs is ________ _______.
A positive coliform sample requires the collection of 3 repeat samples within 24 hours of learning of the positive result.
A positive coliform sample requires the collection of ___ repeat samples within ___ hours of learning of the positive result.
A single family residential service line is typically ¾ to 1 inch in diameter.
A single family residential service line is typically ___ to ___ inch in diameter.
Chemical analysis test results must be maintained for a period of 10 years.
Chemical analysis test results must be maintained for a period of __ years.
Chlorine dosage is the combination of demand plus the desired residual.
Chlorine dosage is the combination of demand plus the desired _______.
Chlorine storage rooms are required to have both a high-level screened and louvered vent and a floor level screened and louvered vent.
Chlorine storage rooms are required to have both a ____ level screened and louvered vent and a _____ level screened and louvered vent.
Chlorine tablets (Calcium hypochlorite) should not come in contact with petroleum based products due to the violent reaction that will result.
Chlorine tablets (Calcium hypochlorite) should not come in contact with ________ based products due to the violent reaction that will result.
Coagulation by the addition of positively charged ions can also be described as charge neutralization since the positive ions neutralize the negative ions present in the raw water.
Coagulation by the addition of positively charged ions can also be described as ____ ____________ since the positive ions neutralize the negative ions present in the raw water.
Coagulation occurs prior to sedimentation and filtration.
Coagulation occurs ____ to sedimentation and filtration.
Components of a chlorine gas feed system include a steel chlorine cylinder, scale and rotameter.
Components of a chlorine gas feed system include a steel chlorine cylinder, ______, and ________.
Excessive nitrates in drinking water can cause Blue Baby Syndrome in infants who drink the water.
Excessive nitrates in drinking water can cause ____ ____ ________ in infants who drink the water.
The main component of a hypo-chlorination system is a solution feed pump.
The main component of a hypo-chlorination system is a ________ ________ pump.
The most common type of isolation valve found in the distribution system is the gate valve.
The most common type of isolation valve found in the distribution system is the _____ valve.
The most common type of pipe joints used today are push-on joints and Mechanical joints.
The most common type of pipe joints used today are push-on joints and _________ joints.
All underground main line valves should be operated at least annually.
The most common type of valve found on a customer's service line is a Ball Valve.
The most common type of valve found on a customer's service line is a Ball Valve.
The most common type of valve found on a customer's service line is a ____ Valve.
A noise coming from a pump that sounds like pinging or gravel being pumped is most likely the result of cavitation.
The most commonly used pump in the distribution system is the _________ pump.
The most commonly used pump in the distribution system is the _________ pump.
The most commonly used pump in the distribution system is the _________ pump.
The most difficult requirement for a water system and its operators is the continuous delivery of water.
The most difficult requirement for a water system and its operators is the _________ delivery of water.
The pH scale ranges from 0 to 14.
The pH scale ranges from ___ to ___.
The point at which all organic compounds, ammonia, and reducing agents have reacted with the chlorine dose is called the Breakpoint.
The point at which all organic compounds, ammonia, and reducing agents have reacted with the chlorine dose is called the ________.
The purpose of a lockout/tagout program is to keep employees safe by isolating potential energy sources from equipment during maintenance.
The purpose of a ______/______ program is to keep employees safe by isolating potential energy sources from equipment during maintenance.
The purpose of a distribution system water mains is to transport water throughout the system.
The purpose of a distribution system _____ ______ is to transport water throughout the system.
All wells used for public water systems must be constructed with a concrete sealing block, a meter, a screened vent, and a faucet for sample collection.
The purpose of a lockout/tagout program is to keep employees safe by isolating potential energy sources from equipment during maintenance.
The purpose of a lockout/tagout program is to keep employees safe by isolating potential energy sources from equipment during maintenance.
The purpose of a lockout/tagout program is to keep employees safe by isolating potential energy sources from equipment during maintenance.
The purpose of a safety program in the workplace is to prevent workplace accidents.
The purpose of a safety program in the workplace is to ______ workplace ________.
The simplest and most common electric motor found in the distribution system is the Squirrel - Cage Induction Motor.
The simplest and most common electric motor found in the distribution system is the _______ - _____ Induction Motor.
The two most commonly used deep well pumps are the submersible and the vertical turbine pumps.
The two most commonly used deep well pumps are the _________ and the ______ _____ pumps.
The well screen allows water to pass through but keeps the sand out of the well.
The well ______ allows water to pass through but keeps the sand out of the well.
There must be at least 9 feet separating buried sewer lines and water lines.
There must be at least ___ feet separating buried sewer lines and water lines.
Water is considered neutral (neither acidic or basic) at a pH of 7.0.
Water is considered neutral (neither acidic or basic) at a pH of ____.
Under emergency conditions, TCEQ allows water main disinfection to be accomplished with a 500 mg/L chlorine dose for 30 minutes.
Under emergency conditions, TCEQ allows water main disinfection to be accomplished with a ____ mg/L chlorine dose for ___ minutes.
Under non-emergency conditions, the chlorine residual for disinfecting new or repaired water main is ___ mg/L.
Under non-emergency conditions, the chlorine residual for disinfecting new or repaired water main is 50 mg/L.
Fire protection requirements for the service area is the driving factor when determining pressure and quantity requirements for a distribution system.
____ _________ requirements for the service area is the driving factor when determining pressure and quantity requirements for a distribution system.
2.31 feet = 1 psi
____ feet = 1 psi
DPD is a powder used to determine the chlorine concentration in drinking water.
____ is a powder used to determine the chlorine concentration in drinking water.
PVC pipe can become brittle or weakened due to prolonged exposure to natural sunlight.
____ pipe can become brittle or weakened due to prolonged exposure to natural sunlight.
Fecal Coliform
_____ ______ found in drinking water indicates the water is contaminated with potentially pathogenic organisms that may be harmful
Calcium Hypochlorite is a solid form of chlorine that is used by some small water systems to maintain a chlorine residual.
______ ______ is a solid form of chlorine that is used by some small water systems to maintain a chlorine residual.
Water Hammer is hydraulic shock caused by the sudden change in velocity or direction of water flow.
______ _______ is hydraulic shock caused by the sudden change in velocity or direction of water flow.
Coliform bacteria is used as an indicator organism during bacteriological testing of drinking water.
______ bacteria is used as an indicator organism during bacteriological testing of drinking water.
Chlorine leaks around cylinder connections can be detected by using a 10% ammonium hydroxide solution.
_______ _____ ____ ______ (MSDS) or Safety Data Sheets (SDS) must be available to all employees for all workplace chemicals.
_______ _____ ____ ______ (MSDS) or Safety Data Sheets (SDS) must be available to all employees for all workplace chemicals.
_______ _____ ____ ______ (MSDS) or Safety Data Sheets (SDS) must be available to all employees for all workplace chemicals.
Calcium and Magnesium are the two main contributors to hardness in water.
________ and _________ are the two main contributors to hardness in water.
Drawdown is the difference between the static water level and pumping water level in a well.
________ is the difference between the static water level and pumping water level in a well.
Volume, gal = 0.785 x D x D x Depth x 7.48 7.48 gal/cu ft
_________ = 0.785 x D x D x Depth x 7.48 gal/cu ft
Dose, mg/L = Demand, mg/L + Residual, mg/L
_________ = Demand, mg/L + Residual, mg/L
Drawdown, ft = Pumping Water Level, ft - Static Water Level, ft
__________ = Pumping Water Level, ft - Static Water Level, ft
Disinfection is commonly referred to as the most important water treatment process.
__________ is commonly referred to as the most important water treatment process.
Drawdown is the difference between the static water level and the pumping water level in a well.
__________ is the difference between the static water level and the pumping water level in a well.
Cryptosporidium is very resistant to chlorine disinfection.
_____________ is very resistant to chlorine disinfection.
