1. Sean Lieske Drinking Water Compliance Team Leader Compliance Assurance & Data Management Unit Water Quality Control Division 303-692-3505 Colorado Department Public Health & Environment

2. Regulation Promulgation 2005200720062008 EPA Promulgates Regulation Regulation becomes effective States Required to have Primacy State Rule Adoption Process

3. Authority: CRS 25-1.5-201 - 208 Limitation: §25-1.5-202(2) stipulates that our regulations can be no more stringent than the federal standards promulgated pursuant to the Safe Drinking Water Act Colorado Board of Health Water Quality Control Commission State Rule Adoption Process

4. Request for Rule Making to BOH Rule Making Hearing at BOH NovDecJan Regulation becomes effective Comment Period FebMarch Water Quality Control Commission Process? State Board of Health Process

5. Colorado Primary Drinking Water Regulations New Regulations - 1) Stage 2 Disinfection Byproduct Rule Promulgated by EPA - January 2006 2) Long Term 2 Enhanced Surface Water Treatment Rule Promulgated by EPA – January 2006 3) Groundwater Rule Promulgated by EPA - ?

6. Public Water System Public Water System: Has at least 15 service connections or serves 25 or more persons for at least 60 days per year Community Water System: at least 15 service connections or serves 25 or more persons per year Non-Community Water System: serves at least 25 or more people for more than 60 days per year Transient Non-Community Water System: serves at least 25 different persons for 60 days or more each year Non- Transient Non-Community Water System: at least 25 of the same persons for 6 months or more each year

7. Types of Public Water Systems Consecutive Water System (State) Means a public water system that receives, through purchase or other means, treated water from one or more supply systems and distributes only that water through a distribution system that it owns. These systems may provide disinfection but no other treatment.

8. Types of Public Water Systems Consecutive Water System (EPA) A public water 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.

9. Consecutive Systems Combined Distribution System Treatment Plant R i v e r Wholesale System 100,000 Consecutive System 10,000 Consecutive System 50,000 System ASystem BSystem C 100,000 Schedule based on population of: Treatment Plant River

10. Combined Distribution System Example System A System serving 12,000 System B System serving 60,000 System C System serving 500 Who treats and sells water to... Sells water to... All 3 systems must comply based on the schedule of System B (Schedule 2)