Friday, November 2, 2012

Safe to drink?


How do you know if your well water is safe to drink?

Solution:
Take samples and have your well water tested!


Quick Facts:
  • The maximum acceptable concentration of E. coli is 0 per 100 mL of water
  • More than 10 total coliforms bacteria per 100 mL is not safe to drink!
  • Must be less than 1 NTU of turbidity
     
  • Naturally occurring minerals affects water hardness, taste, odour, and colour. These aesthetic problems do not indicate that it is hazardous to human health. But you may want to test your water to be on the safe side
     
  • In addition to microbiological contaminants, chemical contaminants can pose a health risk!

Click here:
For guidance to well water treatment and maintenance
http://www.hc-sc.gc.ca/ewh-semt/pubs/water-eau/well-puits-eng.php

TEST YOUR WELL WATER FREQUENTLY

Thursday, November 1, 2012

Bottled water vs Tap water

Question of the day: do you think there is a difference between bottled water and Tap water? and which one do you prefer ?

Thursday, October 25, 2012

Walkerton: Ten Years Later

 

A talk on what is happening in Walkerton ten years later.. very interesting debate..

Please comment on your thoughts :)

Youtube: Walkerton: Ten Years Later

water, water, water

 
Question of the day: How do you treat your tap water at home?

A. Drink as it is
B. Filter it
C. Boil it

Wednesday, October 24, 2012

Multi-Barrier Approaches Cont'd

Barrier Approach #4: Monitoring System



An extensive monitoring system is another esstential component in ensuring water is safe and potable for the community. Several protocols to follow include:
  • Having a instantaneous monitoring system that takes continuous and frequent measurements of the pH, temperature, chlorine residues in the water, turbidity, conductivity, pressure and flow rates.  
  • Making any adjustments as necessary at the control center when certain parameters pertaining to drinking water do not meet up to municipal standards  
  • Conducting microbial testing on the water regularly at the laboratory
  • Using a guidance manual that is designed to provide proper sampling procedures (e.g. standard methods for collection, transportion, custody, labeling, testing, and reporting of drinking water samples and testing all scheduled contaminants)
  • Having the technology that is reliable and efficient in collecting data
  • Generating and disseminating reports to consumers and Ministry of Environment

Barrier Approach #5:  Emergency Response Plan

Emergency response plan should be implemented to readily deal with unusual and unexpected situations. Basically this type of plan include the following points:
    http://emergency.lacity.org/stellent/groups/departments/@emd_contributor/documents/contributor_web_content/lacityp_012520.gif
  • Hazard identification and summary. Questions to asked: is the hazard natural or man-made? Is it from a flood, forest fire, a water contamination and a waterborne outbreak?
  • Risk assessment is based on the criticalness of the component that is affected to the system, the age of the component, the cost of mitigation, and programs available for replacement or construction of those components that are affected
  • Preparedness planning. Create clear definition of all operator and employees' roles, and have a good communication system between parties involved
  • Emergency response, recovery and training address what response is appropriate to take, what to do after an adverse event, and what type of training is adequate to deal with an emergency

Barrier Approach #6:  Operator and Employee


The lack of employee training was the result of the E. coli outbreak in Walkerton. Therefore, one of the most effective prevention method is that all employees and operators must be certified and attend an annual training program approved by the minstry. Grandparented operators need to be recertified and new operators need to complete a course at entry-level. The annual training program emphasizes on:
  • Refreshing skills and requirements
  • Addressing water safety issues such as emerging pathogens, actions taken in event of emergency
  • Updating governmental standards and sanitary practices
Another mandatory role of the operator is that they need to report to the Ministry of Enviornment when adverse water quality has been identified and does not meet prescribed health standards. Because of operators' failure to due diligence, this was a major cause of a delayed response to seize the propagation of the outbreak in Walkerton.

REMEMBER: CERTIFICATION AND TRAINING = GOOD PRACTICES IN SYSTEM OPERATION
















Acknowledgment: Justice Dennis O'Connor
Source:Drinking Water Source Protection