1. Drinking Water Tiffany Floyd Assistant Regional Administrator/ Regional Drinking Water Manager

2. Public Water System A system for the provision to the public of water for human consumption through pipes or other constructed conveyances, if such system has at least fifteen (15) service connections or regularly serves an average of twenty- five (25) individuals at least 60 days out of the year.

3. Benefits of a Public Water System  Superior Well Construction  Sanitary Defect Inspections  Technical Financial and Managerial (TFM) Framework required  Continual Monitoring  Proactive Approach to Contamination  Technical Assistance from DEQ

4. Risks of Private Wells  Many conduits from surface to aquifer  Each homeowner is fully responsible  Monitoring non-existent or minimal  Monitoring is costly ($1700-2200) for full suite of contaminants  Reactive approach to contamination (if monitoring conducted/revealed)

5. Public Water System Classification Public Water System (PWS) Community PWS Non- Community PWS Non-Transient PWS Transient PWS

6. Community PWS   A public water system which serves at least 15 service connections used by year round residents or regularly serves an average of 25 year round residents.   Examples: o o Municipalities o o HOAs o o Mobile Home Parks

7. Non-Transient Non-Community PWS   A non-community public water system that regularly serves at least 25 of the same persons for more than 6 months per year.   Examples: o o Schools o o Factories o o Restaurants (>=25 employees)

8. Transient Non-Community PWS   A water system which does not regularly serve at least 25 of the same persons over 6 months per year.   Examples: o o Campgrounds o o State Parks o o Rest Areas o o Restaurants (<25 employees)

9. Monitoring Framework  Community and Non-Transient Non-Community PWS’s monitor for acute and chronic contaminants: Total Coliform and E. coli bacteria Total Coliform and E. coli bacteria Nitrates and Nitrites Nitrates and Nitrites Disinfection By-products (if appropriate) Disinfection By-products (if appropriate) Inorganic Chemicals (IOCs) Inorganic Chemicals (IOCs) Volatile Organic Compounds (VOCs) Volatile Organic Compounds (VOCs) Synthetic Organic Compounds (SOCs) Synthetic Organic Compounds (SOCs) Lead and Copper Lead and Copper Radionuclides (Community systems only) Radionuclides (Community systems only) Also require a certified water operator Also require a certified water operator

10. Monitoring Framework  Transient Non-Community PWS’s monitor for only acute contaminants: Total Coliform and E. coli bacteria Total Coliform and E. coli bacteria Nitrates and Nitrites Nitrates and Nitrites If surface water, require a certified water operator If surface water, require a certified water operator

11. DEQ manages 24 Public Water Systems in Boise County  Surface Water Treatment Systems – o Horseshoe Bend o Bogus Basin o Wilderness Ranch o Idaho City o Rivers Point o Castle Mountain Creeks  Ground Water Systems – o 18 Community Water Systems o 2 Non-Transient Non Community o 4 Transient Water Systems

12. Central District Health Department (HD4) manages 18 Public Water Systems In Boise County  Day-to-day compliance issues of non- government owned PWS’s with less than 25 service connections are subcontracted by DEQ to the District Health Departments.  Any enforcement actions are referred back to DEQ.

13. New Rules on the Horizon  Surface Water Treatment Rule Revisions Long Term 2 for DBP; effective now Long Term 2 for DBP; effective now  Lead and Copper Revisions PN requirements; effective once Legislature concludes its session PN requirements; effective once Legislature concludes its session  Ground Water Rule; effective Dec. 2009  Total Coliform Rule Revisions; effective ~2013