Friday October 9, 2009
Time: 8:00 am Registration; 8:30 am - 11:30 am training
Place: Pacific Islands Club, Napu Room
Place: Pacific Islands Club, Napu Room
The Mariana Islands Water Operator Association hosted a workshop to explain how the new Ground Water Rule (GWR), which takes effect on December 1, 2009, will affect your Public Water System. Personnel from DEQ presented the information. DEQ is encouraged all PWS owners and/or managers to attend this workshop. Attendance at this workshop was not required by DEQ, but PWSs that attended received important information that may help them decide how to best respond to DEQ’s recent letter about the ground water rule.
Workshop Topics:
The discussions at this workshop attempted to answer the following questions about the ground water rule:
What are the consequences of my PWS declaring that we provide 4-log virus treatment (or not)?
What is meant by 4-log virus treatment, and how is it determined?
Can PWSs that do not use chlorine for disinfection get credit for 4-log virus treatment?
Can PWSs that use membrane filtration (reverse-osmosis) get credit for 4-log virus treatment?
How do consecutive water systems sample their source water, if they have a total coliform positive sample in their distribution system?
How will the minimum chlorine residual be determined for each system, and where should chlorine residual be measured?
What forms should be used to keep track of chlorine residual?
The discussions at this workshop attempted to answer the following questions about the ground water rule:
What are the consequences of my PWS declaring that we provide 4-log virus treatment (or not)?
What is meant by 4-log virus treatment, and how is it determined?
Can PWSs that do not use chlorine for disinfection get credit for 4-log virus treatment?
Can PWSs that use membrane filtration (reverse-osmosis) get credit for 4-log virus treatment?
How do consecutive water systems sample their source water, if they have a total coliform positive sample in their distribution system?
How will the minimum chlorine residual be determined for each system, and where should chlorine residual be measured?
What forms should be used to keep track of chlorine residual?
(photo: one of the flow charts used to describe the Ground Water Rule)
Handouts at this workshop included a copy of the letter DEQ sent all of the PWSs that use groundwater as a source, the response form and example calculations for CT, and a CT formula sheet. To get a pdf of each of these handouts, click the links above. Also, a pdf file containing the flow charts for the groundwater rule is available here: GWR Flow Charts
For more information on the Ground Water Rule, you can download Guidance Manuals, and Quick Reference Guides from EPA's website at: http://www.epa.gov/safewater/disinfection/gwr/compliancehelp.htm
Handouts at this workshop included a copy of the letter DEQ sent all of the PWSs that use groundwater as a source, the response form and example calculations for CT, and a CT formula sheet. To get a pdf of each of these handouts, click the links above. Also, a pdf file containing the flow charts for the groundwater rule is available here: GWR Flow Charts
For more information on the Ground Water Rule, you can download Guidance Manuals, and Quick Reference Guides from EPA's website at: http://www.epa.gov/safewater/disinfection/gwr/compliancehelp.htm
Instructors' Bios
PowerPoint Presentations
- coming soon
Certified operators attending this training earned 3 hours of continuing education towards thri certification renewal requirements.
Send mail to webmaster@marianasoperators.org with questions or comments about this web site.
Copyright © 2009 - 2013 Mariana Islands Water Operator Assocaition
Last modified: 2/25/2013
Copyright © 2009 - 2013 Mariana Islands Water Operator Assocaition
Last modified: 2/25/2013