Grade //
1 /
Water
/ /
Distribution Study Questions With Correct Answers
/ // // // // //
Which /
/agency /
/sets /
/legal /
/limits /
/on /
/the /
/concentration /
/levels //of //harmful //contaminants //in //potable //water //distributed //to //customers?
a. //National //Primary //Drinking //Water //Regulations //Agency
b. //US //EPA
c. //US //Public //Health //Service
d. //Occupational //Health //and //Safety //Administration //- //CORRECT //ANSWERS(S)✔✔B
The //number //of //monthly //distribution //system //bacteriological //samples //required //is
a. //based //on //the //water //withdrawal //permit //limit
b. //based //on //the //system //size
c. //based //on //population //served
d. //different //for //each //state //- //CORRECT //ANSWERS(S)✔✔c
What /
/is /
/the /
,/maximum /
/contaminant //level //for //TTHM //in //the //united //states? //- //CORRECT //ANSWERS(S)✔✔.08
Under /
/the //Surface //Water //Treatment //Rule, //disinfection //residuals //must //be //collected //at //the //same
//location //in //the //distribution //system //as?
a. //coliform //samples
b. //total //tthms
c. //disinfection //by //products
d. //alkalinity, //conductivity, //and //pH //for //corrosion //studies //- //CORRECT //ANSWERS(S)✔✔a
Iron /
/can /
/cause //"red /
/water" /
/and /
/thus /
/customer /
/complaints /
/when //its //concentration //is //above //its //secondary //maximum //contaminant //level //of:
a.) //0.01 //mg/L
b.) //0.05 //mg/L
c.) //0.10 //mg/L
d.) //0.30 //mg/L //- //CORRECT //ANSWERS(S)✔✔d
The /
/goal /
/of /
/the /
/Surface /
,/Drinking /
/Water /
/Act /
/is /
/for /
/each /
/________ /
/to /
/accept /
/primary /
/enforcement /
/responsibility //(primacy) //for //the //operation //of //the //state's //drinking //water //program.
a. //state
b. //water //treatment //plant
c. //operator
d. //municipality //- //CORRECT //ANSWERS(S)✔✔a
What //is //the //objective //of //the //Total //Coliform //Rule?
a. //to //provide //Cryptosporidium //protection //in //new //facilities
b. //to //ensure //safe //levels //of //lead //and //copper
c. //to //protect //the //public //from //exposure //to //giardia //lamblia //and //crypto
d. /
/to /
/promote /
/routine //surveillance //on //system //water //quality //to //search //for //fecal //matter //and/or //disease-
causing //bacteria //- //CORRECT //ANSWERS(S)✔✔d
Which /
/agency /
/sets /
/standards /
/on /
, /concentration /
/levels //of //harmful //contaminants //in //drinking //water? //- //CORRECT //ANSWERS(S)✔✔USEPA
Explain /
/the /
/difference /
/between /
/the /
/different /
/tiers /
/of /
/violations. /
/Which /
/one /
/is /
/the /
/most /
/serious? //- /
/CORRECT /
/ANSWERS(S)✔✔Tier //
1/
/is /
/an /
/acuty /
/MCL /
/violation /
/requiring /
/public /
/notification /
/within /
/24 /
/hrs. /
/Tier //2 //notification //must //occur //within //30 //days. //Tier //3 //require //notification //within //1 //year.
1 /
Water
/ /
Distribution Study Questions With Correct Answers
/ // // // // //
Which /
/agency /
/sets /
/legal /
/limits /
/on /
/the /
/concentration /
/levels //of //harmful //contaminants //in //potable //water //distributed //to //customers?
a. //National //Primary //Drinking //Water //Regulations //Agency
b. //US //EPA
c. //US //Public //Health //Service
d. //Occupational //Health //and //Safety //Administration //- //CORRECT //ANSWERS(S)✔✔B
The //number //of //monthly //distribution //system //bacteriological //samples //required //is
a. //based //on //the //water //withdrawal //permit //limit
b. //based //on //the //system //size
c. //based //on //population //served
d. //different //for //each //state //- //CORRECT //ANSWERS(S)✔✔c
What /
/is /
/the /
,/maximum /
/contaminant //level //for //TTHM //in //the //united //states? //- //CORRECT //ANSWERS(S)✔✔.08
Under /
/the //Surface //Water //Treatment //Rule, //disinfection //residuals //must //be //collected //at //the //same
//location //in //the //distribution //system //as?
a. //coliform //samples
b. //total //tthms
c. //disinfection //by //products
d. //alkalinity, //conductivity, //and //pH //for //corrosion //studies //- //CORRECT //ANSWERS(S)✔✔a
Iron /
/can /
/cause //"red /
/water" /
/and /
/thus /
/customer /
/complaints /
/when //its //concentration //is //above //its //secondary //maximum //contaminant //level //of:
a.) //0.01 //mg/L
b.) //0.05 //mg/L
c.) //0.10 //mg/L
d.) //0.30 //mg/L //- //CORRECT //ANSWERS(S)✔✔d
The /
/goal /
/of /
/the /
/Surface /
,/Drinking /
/Water /
/Act /
/is /
/for /
/each /
/________ /
/to /
/accept /
/primary /
/enforcement /
/responsibility //(primacy) //for //the //operation //of //the //state's //drinking //water //program.
a. //state
b. //water //treatment //plant
c. //operator
d. //municipality //- //CORRECT //ANSWERS(S)✔✔a
What //is //the //objective //of //the //Total //Coliform //Rule?
a. //to //provide //Cryptosporidium //protection //in //new //facilities
b. //to //ensure //safe //levels //of //lead //and //copper
c. //to //protect //the //public //from //exposure //to //giardia //lamblia //and //crypto
d. /
/to /
/promote /
/routine //surveillance //on //system //water //quality //to //search //for //fecal //matter //and/or //disease-
causing //bacteria //- //CORRECT //ANSWERS(S)✔✔d
Which /
/agency /
/sets /
/standards /
/on /
, /concentration /
/levels //of //harmful //contaminants //in //drinking //water? //- //CORRECT //ANSWERS(S)✔✔USEPA
Explain /
/the /
/difference /
/between /
/the /
/different /
/tiers /
/of /
/violations. /
/Which /
/one /
/is /
/the /
/most /
/serious? //- /
/CORRECT /
/ANSWERS(S)✔✔Tier //
1/
/is /
/an /
/acuty /
/MCL /
/violation /
/requiring /
/public /
/notification /
/within /
/24 /
/hrs. /
/Tier //2 //notification //must //occur //within //30 //days. //Tier //3 //require //notification //within //1 //year.
