Safe Drinking Water Act Flashcards
What is a Public Water System
15 or more connections, 25 or more individuals, at least 60 days out of the year
What are the two types of Non-Community Water Systems
Non-Transient and Transient Systems
What is the Maximum residual disinfectant level (MRDL)?
a level of a disinfectant added for water treatment that may not be exceeded at the consumers tap
What is the MRDL for Chlorine?
4.0 as Cl2
What is the MRDL for Chloramines
4.0 as Cl2
What is the MRDL for Chorine Dioxide
0.8 as ClO2
What is a Primary Drinking water regulation?
In place to protect the health of persons
What is a Secondary Drinking Water regulation?
In place to protect the welfare of persons
What is a MCL?
Maximum Contaminant Level
What is the MCL for Fluoride?
4.0 mg/l
What is the MCL for Turbidity?
0.3 NTU as a monthly average, greater that 1 NTU anytime
What is the MCLG for microbiological contaminates?
Zero
When would you have to notify the public about Microbiological contamination?
After a positive repeat sample following a positive routine sample, For failure to take all required repeat samples following a positive routine sample, or failure to test for E Coli following a positive total coliform repeat sample
What is the MCL for Iron?
0.3 mg/l
What is the MCL for Manganese?
0.05 mg/l
What is the MCL for odor?
3 TON
What does TON stand for?
Threshold Odor Number
When do odor complaints usually begin?
@ 5 TON
Does the operator in direct charge have to be certified?
YES
How long do you have to turn in your MORs?
10 days after the end of the month.
What is the recommended disinfection agent?
Chlorine
What is the minimum free chlorine residual in the distribution system?
0.2 in 95% of the samples taken during any 2 consecutive months
How long do you have to begin a microbiological examination after taking a sample?
30 hours.
What are the three parts of a Cross Connection Program?
A policy or ordinance prohibiting cross connections, a written plan to detect and eliminate cross connections, and an ongoing program for the detection and elimination of hazards.
