2. Aberdeen S.D. Community Meeting Aberdeen S.D. Community Meeting Presenters: Mr. Brad Olson, President Aberdeen School Board Mr. Tom Opstad, Superintendent Aberdeen School District Insert: Engineer/Testing Lab Katherine Rottell, Regional Engineer Office of Drinking Water WA State Department of Health Jeff Nelson, R.S. Director Division of Environmental Health Grays Harbor County Elisabeth Long, Epidemiologist Childhood Lead Poisoning Surveillance WA State Department of Health

3. What are the Regulations for Lead in Drinking Water? What are the Regulations for Lead in Drinking Water? Lead and Copper Rule (LCR) Applies to drinking water utilities Measures and controls lead in homes Has been effect since 1991 Implemented and enforced by WA State DOH Action Level: Utility must take action to reduce corrosion of water supply if 10% of household lead levels are greater than 15 ppb in a 1-Liter standing sample. Applies to schools and child care facilities Voluntary guidelines provided by USEPA Has been in effect since 1988 No regulatory enforcement Guidance Level: School should replace or mitigate individual taps that exceed 20ppb in a 250 mL standing sample. Lead Contamination Control Act (LCCA )

4. What does “Lead Free” Really Mean? 1998 SDWA Lead Ban Lead Free Components: Contain up to 8% lead Lead Free Solder: Contains up to 0.2% lead Requires the use of “lead-free” pipe, solder, and flux in any plumbing providing water for human consumptions Before the ban solder used in plumbing typically contained 50% lead Banned sale of fixtures that were not “lead-free” after August 6, 1998 Effective January 4, 2014 Changes the definition of “lead-free” pipe Did not change the definition of “lead-free solder or flux” Mainly affected brass or bronze component Look for products listed as NSF/ANSI 61G or NSF/ANSI Standard 372 Lead Free Components: Weighed average of less than.025% for surfaces in contact with potable water Reduction of Lead in Drinking Water Act

5. Aberdeen Community Meeting WAC 246-366A PURPOSE: (1)… replace chapter 246-366 with a more modern set of minimum environmental health and safety standards (2)Implementation…subject to state legislature providing funding to public schools….. APPLICABILITY: (1)… all school facilities…providing education at the kindergarten through twelfth grade (K-12) levels and preschools… (a) private residences used for home-based instruction (b) facilities hosting educational programs…instruction is not primary purpose…detention centers, (c) private facilities where tutoring is the primary purpose, jails, mental health units…

6. Lead in Drinking Water Leaches from Water Utility Piping System Leaches from Service Lines Leaches from Building or Home Plumbing Occurs in Source Water Factors Contributing to Lead in Drinking Water

7. How Does Lead Enter Drinking Water? Lead enters drinking water through the processes of corrosion and leaching These processes are caused by reactions of the water chemistry with piping materials Under the lead and Cooper rule (LCR), water suppliers are required to provide water that minimizes reactions with piping materials, but it is not possible to completely halt corrosion reactions

8. Exhibit 1.1: Potential Sources of Lead in Schools Source: EPA 3 Ts Document 2006, Page 9

9. Source: EPA 3 Ts Document 2006, Page 10 Exhibit 1.2: Common Drinking Water Outlets

10. Source: EPA 3 Ts Document 2006, Page 10 Exhibit 1.2: Common Drinking Water Outlets

11. There can be HUGE variability in sample results collected between schools, from within the same school and even from the same fixtures Challenges in Quantifying Actual Lead Levels

12. Variability Between Schools Age of School Pipe and fixture materials used Amount of water used within school Chemistry of water serving school Variability within a School Age of plumbing materials Pipe and fixture materials used Presence of aerators Amount of water use at the tap Chemistry variability within the school Variability at a Tap Amount of water at that tap Standing time prior to sample collection Sample collection flow rate With/without aerator Variability in Lead Results Variability in Lead Results

13. What Sampling Has ASD Conducted So Far? Sample all fountains and faucets in schools 222 taps tested for lead copper All taps exceeding 20ppb removed from service (X) Number of taps removed from service Mitigation: Aggressive flushing & fitting repair (X) # of taps remain out of service, X returned to service

14. SchoolNo. SitesNo. > 20ppbNotes McDermonth35 Stevens34 Central Park23 A J West29 Miller20 Harbor10 J M Weatherwax35 TOTAL222 Initial Lead Sampling Results by School

15. Use Post Test Only Sampling Timeline: McDermoth Elementary

17. Aberdeen SD Community Meeting Next Steps Pre Sampling What Schools How many samples What is being sampled How results will be communicated Post Sampling Recap sampling protocols Results Next steps Immediate Long term

18. AESD Legislative Considerations Funding for testing (initial & ongoing) and corrective measures Department of Health Estimates Initial Testing at $5 Million All statutory required testing sites of only public schools? Cost number Governor may propose in Agency introduced legislation Determine accurate testing costs (initial & ongoing) Funding for Remediation Measures Interim v permanent Consider Alternatives Local water purveyor responsible for testing schools Fixed fee schedule for commercial labs