Watershed Boundary Dataset (WBD) – California Experience CALGIS Lorri Peltz-Lewis, WBD State Coordinator CA & NV

1978 USGS 1:250,000 National Hydrologic Unit Code (HUC) Maps – –Watersheds interagency standard –8-digit cataloging units Watershed Boundary Delineation (WBD)

1995 CDF - CalWater Map 1.1 DWR – CalWater 2.0 & 2.2 Mixed watershed & administrative boundaries

Watershed Boundary Delineation (WBD) WBD NRCS: Calwater : Interagency Watershed Mapping Committee (IWMC or “CalWater”) – MOU

Watershed Boundary Delineation (WBD) Interagency Standard Delineation of Hydrologic Unit Boundaries FGDC Sponsorship Spatial Water Data Committee: NRCSNRCS USGSUSGS USFSUSFS BLMBLM COECOE FEMAFEMA NOAANOAA NWSNWS

Watershed Boundary Delineation (WBD) National Seamless Database Key characteristics: Nationally consistent seamlessNationally consistent seamless Nested subdivisionsNested subdivisions 5-15 Watersheds per Cataloging Unit5-15 Watersheds per Cataloging Unit Boundaries based on 1:24,000-scale topographic mapsBoundaries based on 1:24,000-scale topographic maps Hydrologically based, no political divisionsHydrologically based, no political divisions 12-digit (6 th -level) Hydrologic Unit Codes12-digit (6 th -level) Hydrologic Unit Codes Formally established watershed namesFormally established watershed names Attribute standardizedAttribute standardized Names from GNIS, hydrologic in natureNames from GNIS, hydrologic in nature Structure supports hydrologic routingStructure supports hydrologic routing CERTIFICATION METHODCERTIFICATION METHOD

Watershed Boundary Delineation (WBD) Level 1 - Region – 2-digit HUC Level 2 - Subregion – 4-digit HUC Level 3 - Basin – 6-digit HUC (was "accounting unit") (was "accounting unit") Level 4 - Subbasin – 8-digit HUC (was "cataloging unit") (was "cataloging unit") Level 5 - Watershed – 10-digit HUC (was 10-digit) (was 10-digit) Level 6 - Subwatershed – 12-digit HUC (was 12-digit) (was 12-digit) Local planning may extend the watershed hierarchy to Levels 7 (14-digit) and 8 (16-digit).

Watershed Boundary Delineation (WBD) Creation of WBD meeting National Standards – CA started in 2000 Workshop 1: Portland (May - June 2001) Workshop 2: Sacramento (December 2001) Workshop 3: Fresno (March 2002) Workshop 4: Shasta (June 2002) Workshop 5: Reno (November 2002) Workshop 6: San Bernardino (March 2003) Workshop 7: San Francisco Bay Area (August 2003 )

Watershed Boundary Delineation (WBD) 2004 – Managers Reports – Funding Request 2005 – CalFed Funding Request – 1.6 M$$ 2006 – More Funding Requests – IWMC Presentations 2007 – EPA & CA State Water Resources Control Board 2008 – Completion & CERTIFICATION!!!

Watershed Boundary Delineation (WBD) 2007 Progress August October December March

Watershed Boundary Delineation (WBD) Review Procedure (FGDC Guidelines) & Status Certification Review Steps: State Coordinator submit completed State Coordinator submit completed Review Committee checks dataset (pass/fail) Review Committee checks dataset (pass/fail) Problems fed back to state until dataset passes Problems fed back to state until dataset passes State makes corrections and resubmits dataset State makes corrections and resubmits dataset Dataset accepted and integrated Dataset accepted and integrated Official release as National WBD Official release as National WBD

Watershed Boundary Delineation (WBD) Resolving Issues:

Watershed Boundary Delineation (WBD) Resolving Issues:

Watershed Boundary Delineation (WBD) Resolving Issues:

Watershed Boundary Delineation (WBD) Deliverables: 2008 Dec - Certified dataset 2009 – Stewardship, coastal, Mexico, Calwater 3, vertical integration – harmonization - others Releases through California Spatial Information Library (CASIL) – submitted MDB in December – status unknown Final certified through Geospatial Data Gateway. Additional formats being discussed.

Watershed Boundary Delineation (WBD) NHD/WBD Stewardship Conference – next week! WBD Stewardship & Maintenance Issues 1 – No Post-Certification Stewardship Strategy 2 – Stewardship Roles and Responsibilities 3 – Update/Maintenance Workflow

Watershed Boundary Delineation (WBD) WBD Stewardship & Maintenance Issues (continued) 4 – Relationship between WBD and NHD being defined - stored in same GDB, supported jointly - phased in loading of WBD – start Spring WBD integration into NHD w/ metadata - tool development - distribution – USGS/NHD main, NRCS secondary 5 – Delineations beyond 6 th Level being determined - 7ths – 3, ,000 acres (DRAFT) - 8ths – 100 – 3,000 acres (DRAFT) - DRAFT at this time

Watershed Boundary Delineation (WBD) WBD Coastal Meeting – October – Remove shoreline from WBD – move it to NHD 2 – Move WBD to 3 nm offshore – drop “toe of shoreface” 3 – Consistent integration for bays, sounds, and estuaries – NOAA assessments, state legal defintions, head of land principle, state determines closure 4 – Pilot locations proposed – spring coordination with NHD ongoing

Watershed Boundary Delineation (WBD) WBD Integration with Mexico 1 – met with Mexico representatives Nov – delineation methods defined by NRCS/USGS accepted 3 – integration started late Dec 2008

Watershed Boundary Delineation (WBD) WBD Calwater 3 – IWMC taking on this effort 1 – Integrate stewardship efforts 2 – Develop best management practices from other states 3 – Evaluate mapping/planning efforts within the state that may be impacted and coordinate with - Meeting March 4, 2009 SWRCB – Geospatial tools developed for CalWater – Water Rights, Upstream Area, etc. 303d (Clean Water Act) assessments & beneficial use State Board Strategic Plan – update & modernization Basin plans using CalWater CalWater codified water quality regulations DWR – Detailed Analysis Units, Water Districts, Irrigation Districts, etc. CALFIRE – Forest Practice Rules, Timber Harvest Fish & Game – no one present Others – Proposition 13 (Water Quality Improvement), Basin Planning (tributary rule), Local Community Involvement

Watershed Boundary Delineation (WBD) WBD – on going & future efforts - Nationally 1 – Vertical Integration issues – densification, old maps, changed hydrology (land use change, man made, catastrophic events, etc.)

Watershed Boundary Delineation (WBD) WBD – on going & future efforts - Nationally (continued) 2 – Indexing to NHD – - geometric pour point layer - indexing flow within WBD similar to NHD 3 – State/Local – - Dam integration - non-USGS gaging stations - diversions – critical & non-critical 4 – Update events - EPA TMDLs (done in 100K NHD) - etc.

Watershed Boundary Delineation (WBD) GET DATA – Questions?

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