Unregulated Contaminant Monitoring Rule 3

1 Overview: Unregulated Contaminant Monitoring Rule 3 SFPUC/Wholesale Customer Annual Tech Transfer Workshop November 14, 2012 Marvin Young USEPA Region 9 (415) 972-3566 Overview Contaminants Applicability Monitoring /Sampling Frequency Timeline and Key Dates Pointers (Sampling Points, Scheduling, f lexibility) Additional Information Contacts 2 List 1 - Assessment Monitoring ; 21 Chemicals CWS and NTNCWS All PWSs (CWS and NTNCWS) serving more than 10,000 people will monitor (~4,200 systems) 800 representative PWSs serving 10,000 or fewer people will monitor; EPA pays for analysis List 2 Screening Survey; 7 Hormones CWS and NTNCWS All PWSs serving more than 100,000 people (~410 systems) 320 randomly selected PWSs serving 10,001 to100,000 people 480 randomly selected PWSs serving 10,000 or fewer people.

2 EPA pays for analysis for these systems List 3 Pre-Screen Testing; 2 Viruses All PWS types; CWS, TNCWS, NTNCWS 800 randomly selected PWSs serving 1,000 or fewer people that do not disinfect These PWSs have wells in areas of karst or fractured bedrock EPA pays for the collection and analysis of these samples UCMR 3 Applicability and Monitoring Summary Assessment Monitoring (List 1 Contaminants) System Type Systems Serving > 10,000 Systems Serving 10,000 CWS & NTNCWS All systems (~4,200) 800 randomly selected systems TNCWS No requirements No requirements Screening Survey (List 2 Contaminants) System Type Systems Serving > 10,000 Systems Serving 10,000 CWS & NTNCWS All systems(~410) serving more than 100,000, and 320 randomly selected systems serving 10,001 to 100,000 480 randomly selected systems TNCWS No requirements No requirements Pre-Screen Testing (List 3 Contaminants)

3 System Type Systems Serving > 1,000 Systems Serving 1,000 CWS, TNCWS & NTNCWS No requirements 800 randomly selected systems UCMR 3 Monitoring Frequency PWSs monitor during a consecutive 12-month period between 2013 2015 Sampling frequency is directly related to the sample point source Surface water , mixed water, ground water under the direct influence of surface water monitor quarterly (3 months apart) Ground water twice a during their 12-month schedule (sample five to seven months apart) EPA established a Monitoring schedule for all PWSs PWSs can independently change their pre-determined schedule in SDWARS by November 29, 2012. Timeline of UCMR 3 2012 2013 2014 2015 2016 Pre- Monitoring Implementation Lab Approval SDWARS Registration Inventory Schedule Sampling Period One consecutive 12-month period during January 2013 - December 2015 ( Monitoring can span more than one calendar year, as long as conducted during a consecutive 12-month period).

4 Data posted in SDWARS, Reviewed and approved every quarter. Post to National Contaminant Occurrence Database (NCOD) Complete Reporting to S DWA R S Review Data Post to NCOD UCMR3 Pointers: General Concepts for Sampling Plans = water after treatment (Footnote c to Table 1 in : Sampling must occur @ entry points to the distribution system (EPTDSs) after treatment is applied that represent each non-emergency water source in routine use over the 12-month period of Monitoring .) 23 UCMR3 Pointers (cont.): General Concepts (cont.) 2. DSMRT = oldest water relative to the EPTDS 3. Sampling schedule flexibility: a. does not have to be the same for all sampling points b. Quarterly and semi-annual sampling dates are not exact 24 UCMR3 Pointers (cont.)

5 : General Concepts (cont.) 4. EPTDS Representative Monitoring a. Multiple entry points delivering same surface water b. Blended water from 2 or more sources c. Groundwater Representative Monitoring Plans 5. EPTDS s can share a DSMRT Sampling: Plan and Prepare Lab Selection Experienced/Practiced Sampling Team Simple Sampling Schedule UCMR3 Final List (30 Contaminants) Contaminant Class EPA Method Assessment Monitoring (List 1 Contaminants) 7 Volatile Organic Compounds EPA SOC - 1,4-dioxane EPA 522 4 Metals EPA Rev , ASTM D5673-10, Standard Methods 3125 (1997) Chromium-6 Total Chromium EPA EPA or ASTM D5673-10, or EPA Oxyhalide Anion chlorate EPA , ASTM D6581-08, Standard Methods 4110D (1997) 6 Perfluorinated Compounds EPA 537 Rev Screening Survey (List 2 Contaminants) 7 Hormones EPA 539 Pre-Screen Testing (List 3 Contaminants) 2 Viruses EPA Method 1615 Sampling for Metals (EPA ) BLANK EPA Method Metals SODIUM BISULFATE Sampling for 1,4-Dioxane (EPA 522) Sampling for Volatiles (EPA )

6 BLANKS EPA Method Volatile Organics BLANKS Sampling for Perfluorochemicals (EPA 537) BLANKS Sampling for Hormones (EPA 539) UCMR 3 Information UCMR3 Web Pages: Home Basic Information Methods & Contaminants Laboratories Reporting GOOGLE Youtube Eurofins Eaton (This is not an endorsement) UCMR3 Contacts: Problems with SDWARS? Call CDX Help Desk at 888-890-1995 Email: with "UCMR Tech Support" in the Subject line FAX: 703-227-4199 UCMR3 Questions? Great Lakes Environmental Center (GLEC) Call 800-949-1581 Email: Marvin Young 415-972-3566