What is the Primary Water Standard MCL (PMCL) for fluoride?

(4.0 mg/L)

What is the Secondary Water Standard (SMCL) for Fluoride?

(2.0 mg/L)

What is the lead action level?

(0.015 mg/L)

What is the Primary Water Standard MCL for lead?

(0.015 mg/L)

What is the action level for copper?

(1.3 mg/L)

What is the Secondary Water Standard MCL for color?

(15 Color Units)

What is the Secondary Water Standard MCL for pH?

(6.5-8.5)

What is the SMCL for TDS?

(500 mg/L)

What is the maximum residual disinfectant level (MRDL) for chlorine in the finished water?

(4.0 mg/L)

How long can you hold a sample for turbidity?

(48 hrs)

How long can you hold a coliform sample?

(6 Hours)

What preservative must be added to iron samples?

(Nitric Acid - HNO₃)

How long can you hold a sample being tested for iron?

(48 hours if not acidified) (6 months if acidified)

What is the best method to analyze for iron?

(Atomic Absorption)

What is the minimum psi allowed in the distribution system?

(20 psi)

What is the maximum holding time for THM?

(14 days)

What is the THM MCL?

(0.08 mg/L or 80 ppb or 80 micrograms/L or 80 μg/L)

What is the turbidity MCL for surface water or ground water under the influence of surface water?

(0.50 NTUS)

When must chlorine samples in the distribution system be taken?

(When Coliform and THM samples are taken)

What is the holding time for testing chlorine residuals?

(Immediately)

What is the holding time for pH samples?

(Immediately)

Which Primary Water standards are IDLH?

(Nitrite and Bacteria)

What is the min. free & combined Cl, residual allowed in the distribution system?

(0.2/0.6 mg/L)

Where do MDRL violations take place?

(At the entrance to the distribution system)

The Monthly Operating Report (MOR) must be sent to which agency?

(Local
HRS)

The MOR should be mailed (electronic or snail mail) by what date?

(10 days following the end of the operating month)

How often must a water system split samples with Dental Agency of the HRS?

(Once a month)

How long must a plant keep MOR records?

(10 yrs)

How long must a plant keep its bacteriological records?

(5 yrs)

What is the MCL for Coliform?

(Presence or Absence)

What is the MCL for Nitrate?

(10 mg/L)

What is the MCL for Nitrite?

(1.0 mg/L)

What is the Secondary Water Standard MCL for Chlorides?

(250 mg/L)

What is the Secondary Water Standard MCL for Iron?

(0.3 mg/L)

What is the Secondary Water Standard MCL for Sulfate?

(250 mg/L)

What is the PMCL for Gross Alpha Activity?

(15 pCi/L)

What is the PMCL for Gross Beta Particle Activity?

(4 mrem/yr)

What is the PMCL for Bromate?

(0.010 mg/L)

What is the PMCL for Chlorite?

(1.0 mg/L)

What is the MRDL for Chlorine Dioxide (CIO2)?

(0.8 mg/L)