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UCMR Sampling Outline

UCMR Sampling TCEQ Drinking Water Sample Collector Training October 2006 Alicia Diehl TCEQ Public Drinking Water Section. UCMR Sampling Outline. History = “Why” Sample Types = “What” Sample Sites = “Where” Applicability = “Who” Frequency = “When” Methods = Gary’s talk later. Why?.

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UCMR Sampling Outline

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  1. UCMR Sampling TCEQ Drinking Water Sample Collector Training October 2006Alicia DiehlTCEQ Public Drinking Water Section

  2. UCMR Sampling Outline • History = “Why” • Sample Types = “What” • Sample Sites = “Where” • Applicability = “Who” • Frequency = “When” • Methods = Gary’s talk later

  3. Why?

  4. Unregulated Contaminant Monitoring Regulation (UCMR) • Congress told EPA to seek new health risks • Look at occurrence and health risks • EPA created UCMR program • Looks at occurrence through sampling program • Other programs look at health risk • EPA created Contaminant Candidate List (CCL) • List of contaminants that are • Not regulated by national primary drinking water regulations • Known or anticipated to occur at PWS, and • May warrant regulation under SDWA • Currently: • CCL2 contains 26 unregulated contaminants • Sampling will occur July 2007 through June 2010

  5. UCMR: Regulatory status • EPA will adopt rule in December (?) • Current version is ‘proposed’ • Direct implementation by EPA • TCEQ has agreement to assist with implementation • But EPA will send letters to PWSs • Questions can be directed to Mike Howell at TCEQ (512/239-1108)

  6. What?

  7. UCMR Sample Types • Two “sets” with three methods each • List 1 = Assessment Monitoring • List 2 = Screening Survey

  8. UCMR List 1:Assessment Monitoring - • Retardants • Pesticides and flame retardants • EPA Method 527 • Explosives • EPA Method 529 • Perchlorate • Maybe • Method 314 or….

  9. UCMR List 2: Screening Survey • Degradates • Herbicide degradate products • EPA Method 535 • Herbicides • Alachlor, etc. • EPA Method 525.2 • Nitrosamines • Potential disinfection byproducts • EPA Method 521

  10. Where?

  11. Sample Sites • Entry point sampling, except… • Nitrosamine samples are also collected at the “Maximum Residence Time” location in distribution • TCEQ will get addresses from DBP sites if possible

  12. Who?

  13. Subset of Systems required to monitor • Large PWS (> 10,000 pop) • List 1 • List 2 • Small PWS (< 10,000 pop) • List 1 • List 2

  14. When?

  15. Unregulated Contaminant Monitoring Rule 2 (UCMR 2) Safewater Home UCM Home UCMR 2 Home Fact Sheet Regulation Contaminant List Reporting Methods Laboratories Meetings & Materials Fact Sheet - Proposed Rule Unregulated Contaminant Monitoring Regulation (UCMR 2) monitoring is proposed to occur during 2007-2010 and includes 26 unregulated contaminants and nine associated analytical methods to be used in this monitoring cycle. The UCMR program was developed in coordination with the Contaminant Candidate List (CCL). The CCL is a list of contaminants that are not regulated by national primary drinking water regulation, are known or anticipated to occur at public water systems, and may warrant regulation under the Safe Drinking Water Act. The data collected through the UCMR program is being stored in the National Contaminant Occurrence Database (NCOD) to support analysis and review of contaminant occurrence, to guide the CCL selection process, and to support the Administrator's determination of whether to regulate a contaminant in the interest of protecting public health. Background About this regulation How did EPA select these contaminants? What are the major differences between UCMR 1 and 2? What are the environmental and public health benefits? What is the EPA Laboratory Approval Program for UCMR 2? Background The Safe Drinking Water Act (SDWA), as amended in 1996, requires EPA to establish criteria for a program to monitor unregulated contaminants and to identify no more than 30 contaminants to be monitored every five years. EPA identified and published unregulated contaminants for the previous UCMR cycle (i.e., UCMR 1), and a revised approach for monitoring, in the Federal Register dated September 17, 1999. UCMR 1 established a tiered monitoring approach, and required all large public water systems (PWSs) and a representative sample of small PWSs (serving 10,000 or fewer people) to monitor for unregulated contaminants from 2001-2005. (The original unregulated contaminant monitoring program (1988-1997) utilized State primacy and required PWSs serving greater than 500 people to monitor.) Top of page Fact Sheet < UCMR 2 < UCM Home < Safewater < Water < EPA Home Page 2 of 4 http://www.epa.gov/safewater/ucmr/ucmr2/factsheet.html 8/22/2006 a: All perchlorate samples must be collected using the sterile technique required in Methods 314.1, 331.0, or 332.0. factors. What are the major differences between UCMR 1 and 2? UCMR Schedule Plan

  16. UCMR Frequency • Samples based on OWNED Entry Points • Not Purchased Entry Points • GW • 2 per year (biannual?) • two times, 6 months apart, during a 12-month period • SW (and GUI) systems • Quarterly • four times, every 3 months, during a 12-month period

  17. UCMR Frequency • Goal: In the same week of the month • Example: • Groundwater system – one GW entry point • Samples the third week of July 07 • Samples again the third week of January 08

  18. Questions?

  19. Bonus Slides

  20. Guidance / Training / Treatment • Contact EPA • EPA Home > Water > Ground Water & Drinking Water > UCM Home > UCMR 2 > Fact Sheet • EPA fact sheet (www.epa.gov) • EPA implementation contractor • Great Lakes Environmental Center (GLEC) • http://www.epa.gov/safewater/ucmr/ucmr2/factsheet.html

  21. Agency Assistance Drinking Water Quality Team Public Drinking Water Section (512) 239-4691 http://www.tceq.state.tx.us

  22. Field Values • Facility ID • TP Treatment Plant • WL Well • SS Sampling Station • OT Other • DS Distribution System • Water Type • GW Ground Water • SW Surface Water • GU Ground Water under direct influence of SW • MX Mixed – any combo of GW, SW, GU • Sample Point Type • EP Entry Point • MR Maximum Residence Time

  23. Large Systems • AM and SS (At EP and MR) • PWS ID PWS 0130001 • PWS Name City of Beeville • Facility ID 00001 • Facility Name Well 1 or distribution • Facility type Well (WL) or Distribution (DS) • Water Type GW • Sample Point ID 4567001 • Sample Point Name Tap at Well 1, or Joe’s home, or 3901 Woodsfield • Sample Point Type EP or MR • Asso. MR Facility ID 00006 • Asso. MR Sample Point ID 4567006

  24. Large Systems (cont) • AM only (Not in distribution, only at EP) • PWS ID PWS 0010001 • PWS Name City of Palestine • Facility ID 00001 • Facility Name Well 1 or distribution • Facility type Well (WL) or Distribution (DS) • Water Type GW • Sample Point ID 4567001 • Sample Point Name Tap at Well 1 • Sample Point Type EP

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