Comply with Drinking Water Regulations
All water systems that exceed the lead and copper action level shall monitor water quality parameters.Which sample criteria shall be followed if exceptions are not granted
2 samples for each water quality parameter,per entry point to the distribution system during each period
A follow up sample is required if the concentration in the composite sample is greater than or equal to_________for any contaminant listed in the National Primary Drinking Water Regulations
0.0005mg/L
Unfiltered water with a mean cryptosporidiumlevel greater than ___________must provide at least 3 log cryptosporidium inactivation
0.001 oocysts/l
Which is the MCL for bromate
0.010mg/L
Which is the MCL for haloacetic acids (HAA5)
0.060mg/L
Which is the National Primary Drinking Water Regulations MCL for total chromium that includes hexavalent chromium(chromium-6)
0.1 mg/l
Water being serve to the public for a population greater than 3300 must must not have a disinfectant residual entering the distribution system below___for more than 4hrs
0.2mg/L
For systems using conventional treatment or direct filtration the turbidity level of representative sample of a systems filtered water must be less than or equal to ___ in at least____of the samples collected each month according to the Enhanced Surface Water Treatment Rule
0.3ntu;95%
How many positive coliform positive samples are allowed each month for water systems that collect less than 40 samples per month
1
If a water system collects less than 40 samples per month for the analyses of total coliform how many samples can be total coliform positive and the system still remain in compliance with the mcl for total coliform
1
Which is the sample size for lead and copper analyses
1,000ml
Which are the turbidity requirements for diatomaceous earth filtration
1.0ntu in 95%of the measurements collected each month
Which are the turbidity requirements for slow sand filtration
1.0ntu in 95%of the measurements collected each month
Which is the Action Level for copper
1.3mg/L
How long does the public water system have for completing and submitting to the primacy agency that it has fully complied with a public notification requirement
10 days
Water systems monitoring for lead and copper and water quality parameters must report all the results within the first________after each monitoring period
10 days
A community water system must post CCR on a publicly accessible Web site if it serves more than
100,000 people
Samples to be analyzed for total coliform by the total coliform fermentation technique,must be kept during transit at a temperature below
10c
How long must a water system monitor the CT 99.9% values daily to determine the total logs of inactivation for each day of operation
12 months
Any water system subject to the NPDWR subpart 1,Control of Lead and Copper,shall retain on its premises original records of all sampling data and analysis,reports,surveys,letters,evaluations,schedules, state determinations and any other information for no fewer than
12 years
If the water system is required to monitor unregulated contaminants,it must collect the samples in one continuous
12-month period
Lead and copper samples collected by customers at their taps must be acidified within
14 days
Which is the appropriate holding time for nitrate if the sample is chlorinated and not acidified
14 days
A public water system has at least ____service connections or serves _____or more persons____or more days of each year.
15;25;60
How many annual consecutive annual samples with no detection results for an organic contaminant must a water system achieve before it may be apply to the state for a waiver
3
How many consecutive annual samples with no detection results for organic contaminant must a water system achieve before it may apply to the state for a waiver
3
Water systems are required to achieve at least___removal and /or inactivation of viruses between a point where the raw water is not subject to re contamination by surface water runoff and a point downstream before or at the first custumer
4 LOG
If a water supplier fails to comply with any national primary drinking water regulation,including monitoring requirements,the water supplier must report to the state the failure to comply within
48 hours
If water supplier fails to comply with any National Primary Drinking Water Regulation including monitoring requirements the water supplier must report to the state the failure to comply within
48 hours
Which is the maximum residual disinfection level goal for chlorine
4mg/L
A water system that detects nitrate at levels above_______,but below the MCL,must include in the CCR a short informational statement about the impacts of nitrate to children
5.0 mg/l
A public water system that uses surface water or ground water under the direct influence of surface water and provides filtration treatment is required by the primacy agency to report to report an acute violation of the filtered water turbidity standard if any turbidity measurements collected during the month exceeds
5.0 ntu
Filtered water systems can avoid source water monitoring for cryptosporidium and E coli if the system provides a total of at least ________of treatment for cryptosporidium
5.5 log
The first draw samples from taps for lead and copper analyses shall have stood motionless in the plumbing of each sampling site for at least
6 hours
A system must begin a second round of source water monitoring no latter than ________following initial bin classification (average source water or cryptosporidium concentration)or determination of the mean cryptosporidium level,as applicable
6 years
If a water system does not collect a sample for unregulated contaminant monitoring according to federal instructions for a listed contaminant,the deviation must be reported to the UCMR sampling coordinator or state within
7 days
Which is the maximum holding time for fecal coliforms using the Fecal Coliform Procedure
8 hours
A water system using conventional filtration treatment does not have to use enhanced coagulation to achive the total organic carbon percent removal if the TTHM and the sum of HAA5 running annual average are
<0.040 mg/l and <0.030 mg/l for TTHM and HAA5 respectively
Public water systems that cannot meet the required removal of TOC can comply if the source water TOC level is ___ ,calculated quarterly as a running annual average
<2.0mg/L
A water system that uses enhanced softening,but cannot achieve the required TOC removals,can still comply by using results from lowering the treated water alkalinity to less than __________as CaCO3 measured monthly and calculated quarterly as running annual averages
<60 mg/l
Where are the sampling points located for required sampling of organics(except THM) in community water systems
Entry points to the Distribution System
If a ground water system detects one or more organic compounds in the chloroethylene family (e.g.,trichloroethylene,tetrachloroethylene,and trans-1,2- dichloroethylene),which constituents will the water system have to monitor quarterly
Vinyl chloride
Under the Surface Water Treatment Rule ,disinfection residuals must be collected at the same location in the distribution system as
coliform samples
If a water system changes its disinfection sampling point,disinfection type,process or any other modification identified by the estate,it must
develop disinfection benchmark
Water systems parameters for calculating CT pH,temperature,residual concentration,and disinfectant contact time must be determined
each day during peak hourly flows
Surface water systems that have failed to meet the lead and copper action levels shall take a minimum of
one sample after any application of treatment or in the distribution at any point which is representative of each source after treatment
Ground Water systems that have fail to meet lead and copper action levels shall take a minimum of
one sample at every entry point to the distribution system that is representative of each well after treatment
When a water system is required to monitor water quality parameters because it exceed the lead and copper action level ,which parameter must be measured every two weeks at each entry point to the distribution system
pH
To avoid filtration,one criterion is that the fecal coliform concentration must be equal to or less than____in representative samples of the source water immediately before the first or only point of disinfectant application in the at least_____of the measurements made for previous 6 months that the system served water to the public on an ongoing basis
20/100mL;90%
If a water sample test positive for coliforms,the system must collect a set of repeat samples within
24 hours
The USEPA recommends water systems using surface water source to collect samples for hexavalent chromium (chromium-6) on a
quarterly basis
If a water system that monitors for water quality parameters because it exceeded the lead and copper action levels maintains the range of values for the water quality parameters reflecting optimal corrosion control treatment during three consecutive years of monitoring the system may
reduce the frequency of sampling from 6 month periods to annually
For water systems that collect inorganic samples more frequently than annually(for antimony,arsenic,barium,cadmium,chromium,cyanide, fluoride,mercury,nickel,selenium,and thallium)compliance with the MCL is determined by
A running annual average at any sampling point
Which analytical test can be performed by any person acceptable to the state
Alkalinity
How often must a public water system using surface water in whole or in part collect and analyze one sample per water plant at the entry to the distribution system for sodium concentration levels
Annually
Water systems are required to achieve at least____removal and /or inactivation of viruses between a point where the raw water is not subject to re-contamination by surface water runoff and a point downstream before or at the first customer
At least 3-Log removal
A small water system has met a certain criteria and has been granted a full waiver and thus a reduce frequency for monitoring lead and copper.How often does it now have to monitor
At least once every 9 years
Where are the samples points located for required sampling of coliform bacteria in a community water system
At the consumers faucet
Which is not an acceptable method of sampling for lead and copper analyses lead service lines
At the tap after the water has remain motionless for at least 4 hrs
A water system that calculates the logs of inactivation for Giardia lambia must also calculate the logs of inactivation for viruses if it uses which type of disinfectant
Chloramines
How is the term lead free defined, when used with respect to solders and flux
Containing not more than 0.02% lead
Under the stage 1 disinfectant and disinfectants by products rule jar testing may be conducted as part of the enhanced coagulation requirements to
Determine alternative total organic carbon removal requirements for a particular plant
When a water system is required to monitor water quality parameters because it exceeded the lead and copper action level and the system uses corrosion inhibitor, which parameter must be measured every two week at each entry point to the distribution system
Dosage rate of the chemical corrosion inhibitor
Water systems may be allowed by their state to monitor annually if the state has determined that the system is reliable and consistently below the mcl for organic compounds.When must the water system collect these annual samples
During the quarter that yielded the highest analytical results
Where are the sampling points located for required sampling of natural radionuclides in a community water system
Each entry point to the Distribution System
Which test must a water utility perform to determine monitoring frequency and specific radionuclide analyses
Gross alpha particle activity scan
If the state allows water systems to composite samples that are to be analyzed for organic compounds ,which entity must composite the samples and what is the holding time
Laboratory,14 days
Which is the best available technology for removing combined radium-226 and radium-228 from source water
Lime softening
If a water system collects at least 40 samples per month for the analyses of total coliforms which percent of total coliform positive samples are acceptable for the system to remain in compliance with the mcl for total coliforms
No more than 5%
If a water system collects at least 40 samples per month for the analyses of total coliform, which percent of total coliform positive samples are acceptable for the system to remain in compliance with the MCL for total coliform
No more that 5%
Where are the sampling point(s) located for required sampling of turbidity in a community water system
Point(s) where water enters the distribution system,including all filter effluents if surface treatment plant
Continuous chlorine residual monitoring is required where the water enters the Distribution System under the Surface Water Treatment Rule when the
Population served is >3300 people
How should distribution operators preserve a sample to be analyzed for asbestos
Preserve by keeping it at 4c
How should a distribution operator preserve a sample to be analyzed for Nitrate-Nitrite
Preserve with H2SO4
If benzene, toluene, ethyl benzene or xylene is detected in water from groundwater wells at alevel exceeding 0.0005 mg/l how often must the system monitor at each sampling point where the contaminant were detected
Quarterly for a minimum of 2 quarters
The USEPA recommends water systems using a ground water source(s)to collect samples for hexavalent chromium (chromium-6) on a
Semi annual basis
Measurements for pH,turbidity,temperature,and residual disinfectant concentrations must be performed by a person approve by the
State
The federal Safe Drinking Water Act requires a water system to provide a plant schematics showing the origin of all flows that recycled.Which other requirement for this recycle provision must be shown on the schematics
The hydraulic conveyance used to transport the recycle flows
Which type of violation requires an all clear notification to the public
Tier 1
Who certifies laboratories for the measurement of total coliforms fecal coliform and heterotrophic plate counts
USEPA or the State
When can a water system that meets the lead and copper action level for two consecutive six months periods reduce the number of samples and reduce the frequency of sampling so that is only required to sample every 3 years
When 90th percentile for lead is <0.005 mg/l and for copper <0.65 mg/l
When is it acceptable for a water supplier not to report analytical results to the state
When a state laboratory performs the analyses
When a large system serving more than, 100,00 people, reduce the number of sampling sites for lead and copper and
When the system meets the lead and copper action level for 2 consecutive six month monitoring periods
When must a water supplier monitor for unregulated contaminants
When the water supplier serves more than 10,000 people
How soon mus t a small water system notify the state in writing after after it becomes aware of lead containing and /or copper containing material in the system
Within 60 days
What is the MCLG for Giardia lambia
Zero
Water systems are required to monitor for water quality parameters when they exceed the lead and copper action levels.If this systems maintain the range of values for the water quality parameters that reflect optimal corrosion control treatment during each of two consecutive six months monitoring periods ,then although they must still monitor at the entry points to the distribution system,they are allowed to
reduce the number of site samples
The prohibition on the use of lead for any plumbing in residential or nonresidential facility connected to a public water system that monitors water for human consumption does not apply to
repair cast iron pipes using lead joints
