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47 Cards in this Set
- Front
- Back
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Conventional pollutants include…1. Biochemical Oxygen Demand (BOD) 2. Cyanide. 3. Hexavalent chromium 4. Oil and grease 5. Suspended solids (SS)
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1, 4, 5 Conventional pollutants include biochemical oxygen demand (BOD), oil and grease and suspended solids (SS).
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The objectives of the General Pretreatment Regulations are to… 1. Improve opportunities to reclaim and recycle sludge. 2. Prevent interference with operation of POTW. 3. Prevent interference with use of disposal of municipal sludge. 4. Prevent introduction of pollutants which pass through treatment works. 5. Reduce the health and environmental risks from pollution.
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1, 2, 3, 4, 5 The objectives of the General Pretreatment Regulations are to improve opportunities to reclaim and recycle sludge, prevent interference with operation of POTW, prevent interference with use or disposal of municipal sludge, prevent introduction of pollutants which pass through treatment works, and reduce the health and environmental risks from pollution.
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What damages could be caused to a POTW agency's collection system by industrial wastes? 1. Clogging the sewers. 2. Corrosion of sewer. 3. Excessive inflow and infiltration (I/I) 4. Explosions from flammable wastes. 5. Lift station failures due to lack of maintenance.
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1, 2, 4 Industrial wastes could cause clogging or corrosion of the POTW's sewers or explosions from flammable wastes.
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What factors determine the staffing needs of an industrial waste program? 1. Amount of industrial waste flow 2. Capacity of POTW 3. Enforcement posture of POTW 3. Magnitude of regulations 5. Size of agency
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1, 5 Amount of industrial water flow and size of agency determine staff.
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What are the basic elements of a pretreatment program? 1. Frequency of inspection 2. Inspection of companies 3. Monitoring of discharges 4. Permission to discharge. 5. Pollution prevention.
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1, 2, 3, 4, 5 Basic elements of a pretreatment program include frequency of inspection, inspection of companies, monitoring of discharges, permission to discharge, and pollution prevention.
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What factors should be considered when determining the level of enforcement response? 1. Consistency 2. Duration of noncompliance 3. Equity 4. Fairness 5. Integrity of program.
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1, 2, 3, 4, 5 Factors that should be considered when determining the level of enforcement response include consistency, duration of noncompliance, equity, fairness, and integrity of the program.
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What types of pollutants or conditions are regulated by the General Pretreatment Regulations? Those that… 1. Contaminate sludge. 2 Interfere with treatment. 3. Pass through treatment system. 4. Overload treatment processes. 5. Wash out treat reactors.
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1, 2, 3 Pollutants or conditions that contaminate sludge, interfere with treatment or pass through the treatment system are regulated by the General Pretreatment Regulations.
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What are the basic elements of a toxic management plan? 1. Identification of toxic organics used. 2. Location of dump site. 3. Method of disposal 4. Quantity of each toxic organic used. 5. Use of each toxic organic.
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1, 3, 4, 5 Basic elements of a toxic management plan include identification of toxic organics used, method of disposal, quantity of each toxic organic used, and the use of each toxic organic.
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What factors should be considered when assessing penalties? 1. Ability of IU to pay penalty. 2. Large enough to deter future noncompliance. 3 Penalties should be calculated on a logical basis. 4 Penalties should be uniform. 5. Recovery of economic benefit for noncompliance.
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2, 3, 4, 5 Factors that should be considered when assessing penalties include making penalties large enough to deter future noncompliance, calculating penalties on a logical basis, making penalties uniform, and ensuring recovery of the economic benefit for noncompliance.
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What circumstances may require an investigation of sewer lines? 1. Emergency response to explosive conditions. 2. Foaming in a sewer line. 3 Installation of a new force main. 4. Scaling or corrosion in a sewer line. 5. Stoppages that cause flow onto streets.
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1, 2, 4, 5 Circumstances that may require an investigation of sewer lines include emergency response to explosive condition, foaming in a sewer line, scaling or corrosion in a sewer line, and stoppages that cause flow onto street.
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What are the options available to an inspector if a request for entry to perform an inspection is denied? 1. Call supervisor for direction. 2. Exercise authority to enter facility without permission. 3. Issue a citation for denial of access. 4. Leave and immediately collect samples for analysis. 5. Threaten company with criminal prosecution.
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1, 2, 3, 4 If a request for entry to perform an inspection is denied, the operator could call supervisor for direction, exercise authority to enter the facility without permission, issue a citation for denial of access, or leave and immediately collect samples for analysis.
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What are the levels of inspection necessary for a complete inspection? 1. Effluent treatment equipment. 2 General tour. 3. Influent monitoring for wastewater control equipment. 4. In-plant wastewater control equipment. 5. Outfall
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1, 2, 4, 5 A complete inspection includes a general tour of the facility and inspection of effluent treatment equipment, in-plant wastewater control equipment, and the outfall.
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What procedures should be followed when collecting industrial effluent samples? 1. Analyze sample when convenient. 2. Collect sample from surface of wastestream. 3. Follow chain of custody procedures. 4. Preserve samples properly. 5. Use proper sampling techniques.
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3, 4, 5 When collecting industrial effluent samples, follow chain of custody procedures, preserve samples properly, and use proper sampling techniques.
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What safety equipment must be in each inspector's vehicle? 1. Acid neutralizers. 2. Fire extinguisher. 3. First aid kit. 4. Spill control pillows. 5. Stop signs.
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2, 3, 4 A fire extinguisher, first aid kit and spill control pillows must be in each inspector's vehicle.
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What factors influence traffic control strategies? 1. Alertness of drivers. 2. Congestion. 3. Local regulations. 4. Time of day. 5. Traffic speed.
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2, 3, 4, 5 Factors that influence traffic control strategies include congestion, local regulations, time of day, and traffic speed.
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What are possible sources of flammable or explosive gases, mists, and vapors in sewers? 1. Accidental discharges. 2. Leaking underground storage tanks. 3. Refinery emissions. 4. Spills. 5. Stormwater runoff.
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1, 2, 4 Accidental discharges, leaking underground storage tanks and spills are possible sources of flammable or explosive gases, mists and vapors in sewers.
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When an inspector enters a confined space, what protective clothing and equipment are needed? 1. Eye protection. 2. Foot protection. 3. Full-body, parachute-type harness. 4. Gloves. 5. Hard hat.
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1, 2, 3, 4, 5 An inspector entering a confined space should wear eye protection, foot protection, a full-body, parachute-type harness, gloves, and a hard hat.
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What are the major categories of hazardous materials encountered during sampling work? 1. Corrosive materials. 2. Inorganic compounds. 3. Poisonous or toxic gases. 4. Solvents and flammable materials. 5. Synergistic reductions.
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1, 2, 3, 4 Major categories of hazardous materials encountered during sampling work include corrosive materials, inorganic compounds, poisonous or toxic gases, and solvents and flammable materials.
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What important information is found on a Material Safety Data Sheet (MSDS)? 1. Cost of chemical. 2. First aid measures. 3. Hazardous ingredients. 4. Personal protection. 5. Spill, leak, and disposal procedures.
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2, 3, 4, 5 A Materials Safety Data Sheet (MSDS) for a particular chemical lists first aid measures, hazardous ingredients, personal protection needed, and spill, leak and disposal procedures.
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Why are samples collected? 1. Check compliance with local standards. 2. Determine strength to accurately assess discharge/use fees. 3. Search for prohibited wastes. 4. Verify industry monitoring points. 5. Verify self-monitoring.
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1, 2, 3, 4, 5 Samples are collected to check compliance with local standards, determine strength to accurately assess discharge/use fees, search for prohibited wastes, verify industry monitoring points, and verify self-monitoring data.
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What factors must be considered when selecting a sample container? 1. Material 2. Packing 3. Shape 4. Size 5. Temperature
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1, 3, 4 Container material, shape and size must be considered when selecting a sample container.
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What methods are used to preserve samples? 1. Acids 2. Bacteria 3. Bases 4. Refrigeration 5. Storage
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1, 3, 4 Acids, bases and refrigeration are used to preserve samples.
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Field tests are the ONLY accurate method for measuring which pollutants? 1. Chlorine residual 2. Cyanide 3. pH 4. Sulfite 5. Temperature
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1, 3, 4, 5 Field tests are the ONLY accurate method for measuring chlorine residual, pH sulfite and temperature.
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What information must be recorded for each sample collected? 1. Emergency response phone number 2. Field observations 3. Name of industry contact person 4. Time sample was collected 5. Who collected sample.
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2, 4, 5 Information that must be recorded for each sample collected includes field observations, time the sample was collected, and who collected the sample.
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What are the typical units used to measure flow? 1. CFS 2. FPS 3. GPM 4. MGD 5. Mg/L
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1, 3, 4 Flow is measured in CFS (cubic feet per second), GPM (gallons per minute), and MGD (million gallons per day).
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What are the advantages of a stilling well? 1. Eliminates effects of foam on water surface 2. Eliminates effects of rags 3. Frequent maintenance is necessary to keep well clean 4. No maintenance s required to clean connection to flume 5. Not affected by wave action in a flume or weir.
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1, 2, 5 Stilling well eliminates effects of foam on water surface, eliminates the effects of rags, and is not affected by wave action in the flume or weir.
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What factors can cause errors in ultrasonic flowmeter readings? 1. Dirty face of transducer 2. Excessive wave action on water surface 3. Foam layer on water surface 4. Improper generation and receipt of acoustic pulses 5. Location of transducer over still well.
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1, 2, 3, 4 Errors in ultrasonic flowmeter readings can be caused by a dirty face on the transducer, excessive wave action on water surface, foam layer on water surface, and improper generation and receipt of acoustic pulses.
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How often should flow-proportioned automatic samplers be programmed to collect a sample? At least once every ___ hour(s) over a 24-hour period. 1. 1 2. 2. 3. 3 4. 4 5. 5
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1 Samples should be collected at least once every hour.
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Why does an inspector need to understand the sources and quantities of industrial wastewaters? To ______problems caused by industrial discharges. 1. Create 2. Define 3. Identify 4. Prepare 5. Solve
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2, 3, 5 Inspectors need to understand the sources and quantities of industrial wastewaters to define, identify, and solve problems caused by industrial discharges.
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What waste characteristics must be considered when determine the acceptability of an industrial waste discharge to a sewer? 1. Concentration 2. Odor 3. pH 4. Temperature 5. Toxicity
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1, 2, 3, 4, 5 Characteristics that must be considered when determining the acceptability of an industrial waste discharge to a sewer include concentration, odor, pH, temperature, and toxicity.
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What are sources of dilute solutions that may be discharged to the pretreatment system or POTW? 1. Plating bath rinses 2. Reject products 3. Spent plating baths 4. Static drag out solutions 5. Stormwater runoff.
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1, 5 Plating bath rinses and storm water runoff are dilute solutions that may be discharged to the pretreatment system or POTW.
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What types of discharge constituents may cause explosions in sewers? 1. Acetic acid 2. Gasoline 3. Hexane 4. Hexavalent chromium 5. Methyl ethyl ketone
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2, 3, 5 Gasoline, hexane, and methyl ethyl ketone may cause explosions in sewers.
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What types of wastes are found in food industry effluents? 1. BOD 2. Cyanide 3. Nitrate 4. PCB's 5. SS
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1, 5 BOD and suspended solids are found in food industry effluents.
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What types of flows are important when establishing treatment and discharge objectives? 1. Average flow 2. Minimum flow 3. Peak flow 4. Total daily flow 5. Weekend flow
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1, 3, 4 When establishing treatment and discharge objectives, average flow, peak flow, and total daily flow are important.
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What information should a pretreatment inspector be aware of with regard to types of industrial production processes? 1. Availability of raw material 2. Chemical constituents in the wastewater 3. Potential wastewater sources 4. Techniques for wastewater reduction 5 Utility costs.
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2, 3, 4 Chemical constituents in wastewater, potential wastewater sources, and techniques for wastewater reduction are important to inspectors.
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What are the benefits of source control? 1. Cost savings 2. Increased size of pretreatment facility 3. Protection of public 4. Reduced chemical costs 5. Reduced liability.
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1, 3, 4, 5 Benefits of source control include cost savings, protection of the public, reduced chemical costs, and reduced liability.
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What are the primary wastewater treatment technologies used by industry? 1. Biological 2. Chemical 3. Disinfection 4. Land 5. Physical
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1, 2, 4, 5 Wastewater treatment technologies used by industry include biological, chemical, and physical processes and land application.
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Which of the following processes are chemical treatment processes? 1. Filtration 2. Neutralization 3. Oxidation/reduction 4. Precipitation 5. Stripping
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2, 3, 4 Neutralization, oxidation/reduction, and precipitation are chemical treatment processes.
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What are the most common and most dangerous hazards that pretreatment inspectors will encounter? 1. Atmospheric hazards 2. Mental hazards 3. Physical hazards 4. Technical hazards 5. Traffic hazards.
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1, 3, 5 The most common and most dangerous hazards that pretreatment inspectors will encounter are atmospheric hazards, physical hazards, and traffic hazards.
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What information should an inspector collect to describe an industrial discharge? 1. Amount 2. Chemical nature 3. Destination 4. Frequency 5. Operators on duty
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1, 2, 3, 4 Collect information on the amount, chemical nature, destination, and frequency of an industrial discharge.
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Which o f the following activities should be performed during an on-site inspection? 1. Check the accidental spill prevention control plan of the industry 2. Conduct a peripheral examination of the industrial user 3. Observe the physical characteristics of the wastestream in the sewer 4. Require the development of a compliance schedule 5. Review existing files for available information about the industry
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1, 2, 3 During an on-site inspection, check the accidental spill prevention control plan of the industry, conduct a peripheral examination of the industrial user, and observe the physical characteristics of the wastestream in the sewer.
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Oil and grease may appear in wastewater in what forms of oil? 1. Cracked oil 2. Emulsified oil 3. Free oil 4. Sequestered oil 5. Soluble oil
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2, 3, 5 Oil and grease may appear in wastewater as emulsified oil, free oil, and soluble oil.
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What water quality indicators can be significantly changed if samples are not properly chilled and sealed? 1. BOD 2. COD 3. Dissolved sulfide 4. Hardness 5. pH
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1, 2, 3, 5 BOD, COD, dissolved sulfide and pH can change if samples are not properly chilled and sealed.
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What industrial discharges could create emergencies? 1. Concentrated acids 2. Concentrated bases 3. Large volumes of toxic materials 4. Large volumes of water 5. Poisonous gases
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1, 2, 3, 5 Discharges of concentrated acids or bases, large volumes of toxic materials, and poisonous gases could create emergencies.
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What are the most likely sources of catastrophic discharges? 1. Canneries 2. Chemical plants 3. Dairies 4. Fuel transfer stations 5. Oil refineries
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2, 4, 5 Chemical plants, fuel transfer stations, and oil refineries are the most likely sources of catastrophic discharges.
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How can the source of a spill be determine? 1. Identifying the material 2. Phoning industries and asking if spill occurred 3. Responding to odor complaints 4. Tracing material upstream 5. Waiting for industry to notify agency
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1, 2, 4 Possible ways to determine the source of a spill include identifying the material, phoning industries and asking if spill occurred, and tracing material upstream.
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What items should an inspector examine at high-risk industrial facilities with regard to emergency response? 1. Chemical ordering plan 2. Emergency response plan 3. Future expansion plan 4. Spare parts inventory plan 5. Spill prevention plan
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2, 5 The high-risk industry's emergency response plan and spill prevention plan must be reviewed.
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