Colorado Department Public Health & Environment

Sean Lieske Drinking Water Compliance Team Leader Compliance Assurance & Data Management Unit Water Quality Control Division 303-692-3505

Regulation Promulgation

EPA Promulgates Regulation State Rule Adoption Process States Required to have Primacy Regulation becomes effective

2005 2006 2007 2008

State Rule Adoption Process

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

Request for Rule Making to BOH

State Board of Health Process

Comment Period Rule Making Hearing at BOH Regulation becomes effective

Nov Dec Jan Feb March Water Quality Control Commission Process?

Colorado Primary Drinking Water Regulations

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

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

Non- Transient Non-Community Water System

: at least 25 of the same persons for 6 months or more each year

Transient Non-Community Water System

: serves at least 25 different persons for 60 days or more each year

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.

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.

Consecutive Systems

Treatment Plant Wholesale System 100,000 Consecutive System 10,000 Consecutive System 50,000 System A System B System C Treatment Plant Combined Distribution System Schedule based on population of:

100,000 100,000 100,000

Combined Distribution System Example

All 3 systems must comply based on the schedule of System B (Schedule 2)

System A System serving 12,000 System C System serving 500 System B System serving 60,000