1. EPA’s Water Quality Exchange (WQX) Annual Exchange Network Users’ Meeting April 18-19, 2006

2. WQX – Water Quality Exchange WQX will: Facilitate water quality data exchange over the Exchange Network –Allow for data submittal via network nodes –Submittals will be validated and processed through EPA’s Central Data Exchange (CDX) Provide web services to access data in OW’s Central Warehouse (which will include all STORET and WQX data) Allow for enhanced data integration, access and visualization from a central data warehouse Utilize the ESAR (Environmental Sampling, Analysis and Results) data standard

3. Overview of Core ESAR Environmental Sampling, Analysis, and Results Monitoring Location Monitoring Location Point of Contact Monitoring Location Identification Monitoring Location Monitoring Location Attached Binary Object Field Activity Field Activity Point of Contact Field Activity Identification Field Activity Date/Time Field Activity Equipment Observation Text Field Activity Attached Binary Object Field Collection Description Sample Event Depth/Altitude Field Sample Collection Method Field Sample Handling Sample Batch and Shipping Sample Chain of Custody Analysis and Results Laboratory Identification Laboratory Batch Receipt Laboratory Sample Receipt Laboratory Sample Handling Sample Preparation Analysis Information QA/QC Analysis Results Binary Object Project Project Point of Contact Project Identification Project Duration Project Reason Data Collection Area Data Collection Quality Project Reference

4. WQX Data Categories PROJECT Project Description (3) Project Binary Object (3) Total Fields (6) MONITORING LOCATION Monitoring Location Identity (4) Monitoring Location Geospatial (12) Monitoring Location Binary Object (3) Total Fields (19) MONITORING ACTIVITY Activity Description (16) Activity Location (5) Sample Description (4) Sample Prep (6) Subsample Description (2) Activity Binary Object (3) Total Fields (36) ORGANIZATION ORG Description (3) ORG Electronic Address (2) ORG Phone (3) ORG Address (9) Total Fields (17) RESULT Result Description (17) Result Binary Object (3) Result Analytical Method (3) Result Lab Info (4) Result Detection Quantitation Level (3) Lab Sample Prep (5) Total Fields (35) An implementation of the ESAR Data Standard Data elements currently accommodate physical, chemical, and fish tissue data

5. The Pilot Pilot exchange partners – Wind River Reservation, Oregon, Texas, Michigan, and EPA’s Office of Water and Office of Environmental Information

7. Moving from Pilot to Production in 2006 The Pilot schema will be modified to comply with the final version of ESAR Draft WQX schema and updated Flow Configuration Document will be released in May ‘06 Final schema will be published in September ’06. No major structural changes are anticipated WQX will be ready to receive data in January ‘07

8. Beyond 2006

9. WQX Vision and Schedule Move WQX from Pilot to Production –WQX Outreach (Begin Apr 06) –Update schema to comply with final ESAR standard and release Draft schema and Flow Configuration Document (May 06) –Finalize Physical/Chemical schema (Sept 06) –Physical/Chemical WQX in production (Jan 07) Add Biological/Habitat data to schema –Begin Biological/Habitat WQX pilot (Late 06/Early 07) –Finalize WQX Biological/Habitat Schema (12/07) –Bio/Habitat WQX in production (Mar 08) Develop Web tool for XML Generation –Tool available for Physical/Chemical data (Feb 08) –Final tool, including Biological/Habitat (Jul 08) Schedule for STORET –SIM 2.0.2 Release (May 06) –Scale down STORET Support (Sept 08)

10. A B Local DB C Web Based entry Warehouse WQX ODS Until Sept. 2009 CDX WQX XML Future Data Flow

11. Question/Comments Contact: –Dwane Young, young.dwane@epa.govyoung.dwane@epa.gov –Kristen Gunthardt, gunthardt.kristen@epa.govgunthardt.kristen@epa.gov –Peter Grevatt, grevatt.peter@epa.govgrevatt.peter@epa.gov Or Visit: www.epa.gov/storetwww.epa.gov/storet