Stormwater Runoff Outfalls: Santa Clara County, California, 2008

Description:

This point shapefile depicts centroid locations of Stormwater Runoff Storm Drain Outfalls, for outfalls greater than or equal to 18 inches in diameter, in the County of Santa Clara, California. The original Hydrograph Modification Program (HMP) data set was completed in 2003. This update is based on data collected in 2004 and 2005. New data include filed observations, newly acquired storm drainage maps and reinterpretation of existing data. Outfalls less than the threshold size were not included unless field verified by the Santa Clara Valley Water District (SCVWD). Certain outfalls were verified for location and diameter, and were noted. Outfalls verified in the field but not identified on storm drain maps were labeled "private" (PVT) and vary in diameter size. The point at which a "trunk" storm drain pipe that has replaced a segment of an open channel, ends, and the flow continues in the open channel was identified. These points occur at the downstream end of a culverted reach of creek, for example under a major highway or through a development. These locations were labeled as "creek culvert terminus" (CCT) in the database, and could be sites of potential scour. Catchment areas, land cover, and percent impervious area of catchment draining to outfall were derived by GIS analysis of remotely-sensed land cover data (3-foot grid cell resolution), acquired in the summer of 2002 by Space Imaging Corporation. The Santa Clara Valley Water District manages an integrated water resources system that includes the supply of clean, safe water, flood protection and stewardship of streams on behalf of Santa Clara County's 1.8 million residents. This layer is part of a collection of GIS data for Santa Clara County, California. To assist the Santa Clara Valley Water District in studies for compliance with National Pollutant Discharge Elimination System Permit regulation C.3f. This coverage can be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analyses of geospatial data. Santa Clara County, California. Planning Office. (2008). Stormwater Runoff Outfalls: Santa Clara County, California, 2008. Santa Clara County, Calif. Planning Office. Available at: http://purl.stanford.edu/sm160tf5795. None.These datasets were developed for use by the Santa Clara Valley Water District (SCVWD) for its internal purposes only, and were not designed or intended for general use by members of the public. SCVWD MAKES NO REPRESENTATION OR WARRANTY AS TO ITS ACCURACY, TIMELINESS, OR COMPLETENESS. SCVWD MAKES NO WARRANTY OF MERCHANTABILITY OR WARRANTY FOR FITNESS OF USE FOR A PARTICULAR PURPOSE, EXPRESSED OR IMPLIED, WITH RESPECT TO THESE PRODUCTS OR THE UNDERLYING DATA. Any user of this data, accepts same AS IS, WITH ALL FAULTS, and assumes all responsibility for the use thereof, and further covenants and agrees to defend, indemnify, and hold SCVWD harmless from and against all damage, loss, or liability arising from any use of this product, in consideration of SCVWD having made this information available.Independent verification of all data contained herein should be obtained by any user of these products, or the underlying data. SCVWD disclaims, and shall not be held liable for, any and all damage, loss, or liability, whether direct, indirect, or consequential, which arises or may arise from these products or the use thereof by any person or entity. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

Resource Link:

https://purl.stanford.edu/sm160tf5795

Identifier:

https://purl.stanford.edu/sm160tf5795

Language:

English

Creator:

Santa Clara Valley Water District (Calif.)

Publisher:

Santa Clara Valley Water District (Calif.)

Provider:

Stanford

Resource Class:

Datasets

Subject:

Hydrology, Watersheds, Runoff, Drainage, Inland Waters, and Location

Temporal Coverage:

2008

Date Issued:

2008

Spatial Coverage:

Santa Clara County (Calif.)

Access Rights:

Public

Format:

Shapefile