U.S. Environmental Protection Agency WATERS Status Update

2 U.S. Environmental Protection Agency Available WATERS Data National Hydrography Dataset (NHD) NHDPlus Catchments Watershed Boundary Dataset (WBD) Water Program Features indexed to the NHD: –Assessed Waters –Impaired Waters –Beaches –Combined Sewer Overflows –Clean Watersheds Needs Survey –Fish Consumption Advisories –Clean Water State Revolving Fund Projects –No Discharge Zones –Permitted Dischargers –Total Maximum Daily Loads –Water Quality Standards Additional Information:

3 U.S. Environmental Protection Agency WATERS Data Web Pages Contains detailed information about the Reach Address Database, NHD, NHDPlus, and other supplemental tables.

4 U.S. Environmental Protection Agency WATERS Data Web Pages Web page contains hyperlinks to Auxiliary Dataset information. –Watershed Boundary Dataset –Tiger 2008 (subset) –NHDPlus Smoothed –Regional layers –National Atlas (subset)

5 U.S. Environmental Protection Agency Available WATERS Services Web and Database Services –Validate and Convert Lat/Long Service –Get Entities by Lat/Long, HUC, and Radius Service –Get Program Waters Entities –NHD Event Indexing Service * –NHD Point Indexing Service * –Identify Service –Total Waters by State, HUC, FCODE, and Bounding Box –Name Service –Upstream/Downstream Service –Navigation Service * * Currently database only service Additional Information:

6 U.S. Environmental Protection Agency WATERS Services Web Page Services web page contains high-level overview information about available services. Indicates if service is available as web and/or database service. Provides link to SOAP Service Endpoint and WSDL. Provides information about underlying database location and name.

7 U.S. Environmental Protection Agency WATERS Services Web Page Services web pages contain detailed level information about individual services. –Description of the service –Input parameters –Example call to the database service –Sample SOAP Request –UML object diagram –Output object –Sample SOAP Response

8 U.S. Environmental Protection Agency WATERS Services Web Page Services web pages contain detailed level information about individual services. –Description of the service –Input parameters –Example call to the database service –Sample SOAP Request –UML object diagram –Output object –Sample SOAP Response

9 U.S. Environmental Protection Agency WATERS Services Web Page Services web pages contain detailed level information about individual services. –Description of the service –Input parameters –Example call to the database service –Sample SOAP Request –UML object diagram –Output object –Sample SOAP Response

10 U.S. Environmental Protection Agency WATERS Services Web Page Services web pages contain detailed level information about individual services. –Description of the service –Input parameters –Example call to the database service –Sample SOAP Request –UML object diagram –Output object –Sample SOAP Response

11 U.S. Environmental Protection Agency Current Environment

12 U.S. Environmental Protection Agency Future Direction GIS services – –Rollout ArcGIS 9.3 (9.3.1) – –Enable ArcGIS based KML and WFS services – –Enable ArcGIS REST interface – –Configure caching for popular projections – –Update RAD Download service functionality – –Reorganization of available services – –Reevaluation of WATERS Metadata Other – –Release Google Earth based KML files, ArcMap Template, and ArcGIS Explorer map document – –Develop ArcGIS Explorer custom tasks that leverage OW Services – –Migrate to Oracle11g to overcome Oracle Spatial issues

13 U.S. Environmental Protection Agency Future Direction Continued focus on web services – –Basin delineation service – –Deployment of SOAP based versions of existing NHD Event Indexing Service, NHD Point Indexing Service, and Navigation Service – –New lightweight HTTP gateway service endpoints KML, JSON, GeoJSON and user provided style sheet output options WATERS JavaScript Wrapper API – –Similar to ERSI’s JavaScript API for Google Maps and Virtual Earth – –Avoids cross-site browser scripting limitations when accessing services from different domains

14 U.S. Environmental Protection Agency What it means to users Users can develop light weight mapping clients that easily consume OW services. The example screenshot shows a light weight client making a call to the OW Navigation Service requesting navigation results 25 miles upstream of a point location.

15 U.S. Environmental Protection Agency What it means to users Users can develop light weight mapping clients that easily consume OW services. The example screenshot shows a light weight client making a call to the NHD Point Indexing Service. 1) Shows the results of a snap operation. 2) Shows the results of a raindrop operation.

16 U.S. Environmental Protection Agency What it means to users Users can develop light weight mapping clients that easily consume OW services. The example screenshot shows a light weight client making a call to a prototype basin delineation service that dissolves smoothed catchments into a resulting basin of interest.

17 U.S. Environmental Protection Agency What it means to users Users can display web service results using customizable style sheets.

18 U.S. Environmental Protection Agency Demonstration Access to framework geospatial datasets stored in the WATERS Database and to general purpose interactive service panels. Dialog boxes providing access to tools, services, and information, such as NHD feature name query, total waters, up/downstream navigation, watershed reports, ATTAINS reports, etc. Access to indexed water program features, with hyperlinks to additional attributes, and context sensitive analysis services, such as up/downstream navigation and watershed reports.

19 U.S. Environmental Protection Agency Future Environment

20 U.S. Environmental Protection Agency Future Direction Interface – –OW is currently evaluating interface options being used by EPA, other agencies and industry. – –OW plans to develop a light weight interface that demonstrates available services and data sets. Outreach – –WATERS web site restructuring – –Notification service (RSS, , etc) – –Webinars – –Presentations – –Training sessions – –White papers

21 U.S. Environmental Protection Agency Future Direction Outreach (Code) – –Cut & paste ready code samples that illustrate how to use OW based services. Similar to Google AJAX Playground, Virtual Earth SDK, ESRI’s JavaScript API samples.

22 U.S. Environmental Protection Agency Additional Information Pravin Rana (OW IM PMO) Phone: (202) Brad Cooper Phone: (703) Waters Support