watershed boundary dataset (wbd) – california experience calgis lorri peltz-lewis, wbd state...

Watershed Boundary Dataset (WBD) –California Experience

CALGISLorri 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)

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: http://www.ncgc.nrcs.usda.gov/products/datasets/watershed/

Calwater : http://cain.ice.ucdavis.edu/calwater/ Interagency Watershed Mapping Committee (IWMC or “CalWater”) – MOU

Watershed Boundary Delineation (WBD)Interagency StandardInteragency Standard

Delineation of Hydrologic Unit BoundariesDelineation of Hydrologic Unit Boundaries

FGDC SponsorshipFGDC Sponsorship

Spatial Water Data Committee:Spatial Water Data Committee:•NRCSNRCS•USGSUSGS•USFSUSFS•BLMBLM•COECOE•FEMAFEMA•NOAANOAA•NWSNWS

Watershed Boundary Delineation (WBD)National Seamless DatabaseNational Seamless Database

Key characteristics: Key characteristics: •Nationally consistent seamless Nationally consistent seamless •Nested subdivisionsNested subdivisions•5-15 Watersheds per Cataloging Unit 5-15 Watersheds per Cataloging Unit •Boundaries based on 1:24,000-scale topographic maps Boundaries based on 1:24,000-scale topographic maps •Hydrologically based, no political divisions Hydrologically based, no political divisions •12-digit (612-digit (6thth-level) Hydrologic Unit Codes -level) Hydrologic Unit Codes •Formally established watershed names Formally 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


Level 1 - Region – 2-digit HUCLevel 1 - Region – 2-digit HUCLevel 2 - Subregion – 4-digit HUCLevel 2 - Subregion – 4-digit HUCLevel 3 - Basin – 6-digit HUC Level 3 - Basin – 6-digit HUC (was "accounting unit") (was "accounting unit") Level 4 - Level 4 - SubbasinSubbasin – 8-digit HUC – 8-digit HUC (was "(was "cataloging unitcataloging unit") ") Level 5 - Watershed – 10-digit HUC Level 5 - Watershed – 10-digit HUC (was 10-digit) (was 10-digit) Level 6 - Subwatershed – 12-digit HUC Level 6 - Subwatershed – 12-digit HUC (was 12-digit) (was 12-digit)

Local planning may extend the watershed Local planning may extend the watershed hierarchy to Levels 7 (14-digit) and 8 (16-digit). hierarchy to Levels 7 (14-digit) and 8 (16-digit).


Creation of WBD meeting National Standards – CA started in 2000Creation of WBD meeting National Standards – CA started in 2000

Workshop 1: Portland (May - June 2001)Workshop 1: Portland (May - June 2001)

Workshop 2: Sacramento (December 2001) Workshop 2: Sacramento (December 2001)

Workshop 3: Fresno (March 2002) Workshop 3: Fresno (March 2002)

Workshop 4: Shasta (June 2002) Workshop 4: Shasta (June 2002)

Workshop 5: Reno (November 2002)Workshop 5: Reno (November 2002)

Workshop 6: San Bernardino (March 2003)Workshop 6: San Bernardino (March 2003)

Workshop 7: San Francisco Bay Area (August 2003Workshop 7: San Francisco Bay Area (August 2003))


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) & StatusReview Procedure (FGDC Guidelines) & Status

Certification Review Steps: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 WBDOfficial release as National WBD


Resolving Issues:


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 unknownhttp://gis.ca.gov/

Final certified through Geospatial Data Gateway.http://datagateway.nrcs.usda.gov/Additional formats being discussed.


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


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 2009- WBD integration into NHD w/ metadata- tool development- distribution – USGS/NHD main, NRCS secondary

5 – Delineations beyond 6th Level being determined- 7ths – 3,000 - 10,000 acres (DRAFT)- 8ths – 100 – 3,000 acres (DRAFT)- DRAFT at this time


WBD Coastal Meeting – October 2008

1 – 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 2009

5 - coordination with NHD ongoing


WBD Integration with Mexico

1 – met with Mexico representatives Nov 2008

2 – delineation methods defined by NRCS/USGS accepted

3 – integration started late Dec 2008


WBD Calwater 3 – IWMC taking on this effort1 – Integrate stewardship efforts2 – Develop best management practices from other states3 – 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 2.2.1• CalWater 2.2.1 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


WBD – on going & future efforts - Nationally1 – Vertical Integration issues – densification, old maps, changed hydrology (land use change, man made, catastrophic events, etc.)


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.


GET DATA – http://datagateway.nrcs.usda.gov/

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watershed boundary dataset (wbd) – california experience calgis lorri peltz-lewis, wbd state...

Documents

digit level

watershed hierarchy

digit huclevel

dataset dataset

unit level

digit local planning

level hydrologic unit

cataloging unit boundaries