OREGON’S WATER QUALITY STANDARDS PROJECT

Rulemaking Workgroup Session #4

April 22, 2009 8:30 –12:30

EPA Oregon Operations Office

505 SW Broadway, Suite 500 – 5^th Floor

Portland, OR

Call-in Line: 866-299-3188, then dial code 5033265873#

AGENDA

8:30  Gather and get settled

8:40  Welcome and overview of agenda – Donna Silverberg, Jennifer Wigal

▪  Today’s agenda

▪  Friday’s Toxics Reduction Strategy Stakeholder Group agenda

8:50  Arsenic Criteria Revision – Debra Sturdevant

▪  Overview/refresher of the issue

o  Objectives of the arsenic criteria revision

▪  Optional approaches and resultant criteria since last meeting

▪  DEQ preferred option

▪  Group discussion

Handouts: Arsenic background paper and draft options paper

10:00  Break

10:15 NPDES Implementation—Background Pollutants

▪  Background pollutants: problem statement and desired outcomes

▪  Idea from Subgroup: Environmentally insignificant increase

o  Group discussion—reaction to approach presented?

▪  DEQ Follow-up on intake credits and background pollutant provisions

Handouts: Background pollutants discussion paper; Michael Campbell’s 3/29/09 memo

11:45  Discuss Friday’s Toxic Reduction Strategy meeting and Potential Roles

12:15  Revisit future workgroup topics, matrix and schedule; next steps; other wrap up,  other implementation

12:30  Adjourn