EHS Knowledge to understand all phases of potable water management correct answers -Water
cycle and its relation to geology
-Accurate testing and sampling of water
-Interpretation of water analysis results
-Diseases associated with contaminated water
-Chemical, physical, biological and radiological contaminants associated with water
-Effect of actual and potential sources of pollution in water supplies
-Water treatment system design
-Water system design
-Land use issues related to the development of water systems
-Water conservation and reclamation methods
For reliable indication of bacteriological quality and safety of potable water supply: correct
answers -Biological and chemical standards
-Reference to describe how water samples are properly collected, transported and preserved
-Frequency source and distribution system water samples are analyzed
-Guidelines for removal of organic and inorganic compounds
-Water conservation techniques to inspect/detect problems with water distribution systems
-Proper use of filtration processed or removal of suspended matter
-Water quality standards
Potable Water correct answers -Aesthetically acceptable
-Free from apparent turbidity, color, odor, objectionable taste,
-Free from disease causing organisms
-Reasonable temperature
, Potable water management correct answers -Science and practice of protecting surface and
groundwater resources used for the production of drinking water
Definition of public water system correct answers -At least 15 connections or
-Regularly services an average of at least 25 individuals daily at least 60 days per year
1974 Safe Drinking Water Act correct answers -Addressed concerns about contaminated water
and uneven state supervision of drinking water
-Required EPA to set enforceable standards for health-related drinking water contaminants
-Primary (enforceable) and secondary (non-enforceable) maximum contaminant levels (MCLs)
1996 Amendment to SDWA correct answers State supervision of capacity development
-Fund to assist small system with compliance
-Consumer Confidence Reports
Surface Water correct answers -Open to the atmosphere and subject to surface runoff
-Rivers, lakes, wetlands, or estuaries
-Often a source of disease-causing organisms
-Vulnerable to contamination
-Always requires treatment before it is safe to drink
Ground Water correct answers -Openings or voids in the earth that are filled with water
-Pumped from underground aquifers through drilled wells or from springs
-Protected by layers of soil and other subsurface materials, usually requires minimal treatment
Ground water under the influence of surface water correct answers Shallow aquifers, from
aquifers near surface water sources, or from sources not well-protected through natural geology
may be subject to influence from surface water sources. Treated like surface water.