Optimizing Public Water Supply Systems in Oklahoma
Learn about successful consecutive connections, water quality standards, communication guidelines, and emergency protocols for public water supply systems in Oklahoma. Explore the importance of continuous monitoring, collaborative planning, and strategies to ensure safe drinking water for communities in need.
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Presentation Transcript
Successful Consecutive Connections Public Drinking Water Supply Section Water Quality Division Oklahoma Department of Environmental Quality
Overview Overview Definition and Purpose rTCR/GWR Additional Requirements Disinfection and Disinfection Byproducts Communication
Defined in Oklahoma Administrative Code (OAC) 252:626-1-2 Consecutive system means a public water supply system that receives some or all of its finished water from one or more wholesale systems. Delivery may be through a direct connection or through the distribution system of one or more consecutive systems. Definition Definition
Communities may lack resources needed to Communities may lack resources needed to meet demands meet demands Inadequate quality or quantity of source water Financial limitations Rapid population growth Rapid population growth Purpose Purpose
Communication Between Operators Communication Between Operators Regular communication between operators is essential Regular communication between operators is essential Monitor water quality parameters across all systems Monitor water quality parameters across all systems Compare sample results and water quality parameters Complete view from treatment plant to last customer Modifications to treatment process Modifications to treatment process Monitoring effects of changes Troubleshooting current issues
Emergencies Emergencies Equipment failure or malfunction Leaks or line breaks Contamination risks Communication Communication Continued Continued Board Meetings Board Meetings Provide representation for purchase system Collaborative future planning
Disinfection Byproducts Disinfection Byproducts As water age increases, DBP concentrations increase As water age increases, DBP concentrations increase Most effective flushing is unilateral flushing from wholesaler to purchaser Optimize storage volumes Connection point of consecutive system For purchase systems For purchase systems Maintain or invest in wells Capability to produce own water is valuable Allows for mixing and dilution of DBPs, and other contaminants
Compatible Disinfectants Compatible Disinfectants Blending of chloraminated and chlorinated water can cause water quality issues Free chlorine can bond to existing monochloramines, forming di- and tri- chloramines Result is weaker disinfectants, lower residuals, and taste and odor Increases risk of nitrification and bacterial growth
RTCR/GWR Additional Requirements RTCR/GWR Additional Requirements TC+ Within Purchase System s Distribution TC+ Within Purchase System s Distribution Purchase systems must notify groundwater wholesaler with 24 hours Sample all active purchase system groundwater sources Wholesaler must sample groundwater sources within 24 hours of notification Wholesale System Wholesale System E. coli positives taken at a wholesaler groundwater source will results in a mandatory boil order for all purchase system within 24 hours
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