California Stream Gages

This layer is a snapshot of stream gages from the fall of 2020. It is the product of an attempt to compile a comprehensive, geospatial list of long-term stream gages whose data is publicly available. Initially, the layer will consist of USGS and CDEC gages. Over time, local (county, municipal, etc.) gages will be added. This layer is not claimed to be authoritative. In cases where this layer and the data maintained by the source entity differ, this layer always defers to the source entity. For analysis purposes, the gage point locations have been altered by SWRCB to coincide with the corresponding line features in the National Hydrography Dataset (NHD) Medium Resolution. The original point locations can be found "x" and "y" fields of the layer's attribute table. For questions, contact the SWRCB Division of Water Rights: [e-mail]. Data dictionary: Field Name Description Data Type SiteID Site ID Text SiteName Site Name Text Operator Agency or entity which operates the gage Text DataSource The agency or entity which publishes the data online (source not exclusive) Text SiteStatus Is the site, in general, active or inactive? Text - Active or Inactive Stage_YN Did the gage report stage at any time? Text - Y or N or U <Unknown> Stage_POR Stage period of record in days (if a site had multiple stage sensors or duration codes, then the max POR was used) Integer Stage_Status Status of stage reporting (active/inactive) Text Stage_RealTime Is/was stage reported hourly or more frequently? Text - Y or N Flow_YN Did the gage report flow at any time? Text - Y or N or U <Unknown> Flow_POR Flow period of record in days (if a site had multiple flow sensors or duration codes, then the max POR was used) Integer Flow_Status Status of flow reporting (active/inactive) Text Flow_RealTime Is/was flow reported hourly or more frequently? Text - Y or N WatQual_YN Did the gage report one or more water quality parameters at any time? Includes parameters such as water chemistry, dissolved oxygen, and turbidity, but not temperature Text - Y or N or U <Unknown> WatQual_POR Water quality period of record in days (if a site had multiple water quality sensors or duration codes, then the max POR was used) Integer WatQual_Status Status of water quality reporting (active/inactive) Text WatQual_RealTime Is/was water quality reported hourly or more frequently? Text - Y or N Temp_YN Did the gage report water temperature at any time? Text - Y or N or U <Unknown> Temp_POR Temperature period of record in days (if a site had multiple temperature sensors or duration codes, then the max POR was used) Integer Temp_Status Status of temperature reporting (active/inactive) Text Temp_RealTime Is/was temperature reported hourly or more frequently? Text - Y or N FloodMgmt Primary purpose of gage is flood management Text - Y or N EcosysMgmt Primary purpose of gage is ecosystem management (flow and water quality) Text - Y or N GrdwtrMgmt Primary purpose of gage is groundwater management Text - Y or N PubSafety Primary purpose of gage is public safety Text - Y or N WtrSupply Primary purpose of gage is water supply (municipal or agricultural) Text - Y or N Ref_GagesII Is the gage site considered a reference site in Gages II dataset? Text - Y or N StrmOrder Strahler stream order Integer UCDStrmClass UCD eFlows stream classification Text StreamType Type of water conveyance the gage is measuring (e.g. Stream/River, Canal/Ditch, Artificial Path, etc.) Text TotDASqKM Total drainage area in square kilometers Double TotDASqMi Total drainage area in square miles Double GNISID_MedRes GNIS (Geographic Names Information System) identification number of the NHD line segment the gage is on (from the NHD Medium Resolution dataset) Text RchCd_MedRes Reach Code identification number of the NHD line segment the gage is on (from the NHD Medium Resolution dataset) Text COMID_MedRes COM ID (common identifier) of the NHD line segment the gage is on (from the NHD Medium Resolution dataset) Text WebLink Web address to access each gage's data Text x_orig X coordinate as provided by source entity (NAD83 CA Teale Albers meters) Double y_orig Y coordinate as provided by source entity (NAD83 CA Teale Albers meters) Double WtrshdNm_HUC8 Name of containing HUC8 watershed Text HUC8 Containing HUC 8 (Hydrologic Unit Code 8) identifier Text WtrshdNm_HUC10 Name of containing HUC10 watershed Text HUC10 Containing HUC 10 (Hydrologic Unit Code 10) identifier Text WtrshdNm_HUC12 Name of containing HUC12 watershed Text HUC12 Containing HUC 12 (Hydrologic Unit Code 12) identifier Text GageGap_Status Status of Gage for Gage Gap Analysis (e.g. Well-Gaged, AWG = Almost Well-Gaged, or Exclude) Text Infrastructure Gage is suspected of being located on infrastructure Text - Y or N ReactivateSF Gage is a candidate for reactivation Text - Y or N Priority_Reactivate Reactivation priority based on gage metadata alone (e.g. period_of_record, parameter status, end-date and other factors, but not including based on gage gap or management criteria) Text AddFlow_2Stage Upgrade candidate: gage is actively reporting stage, potential upgrade to flow and stage Text - Y or N AddFlow_2WQ Upgrade candidate: gage is actively reporting water quality or temperature data, but not flow and/or stage. Text - Y or N AddTelemetry Upgrade candidate: gage is actively reporting stage and/or flow, but not in real-time Text - Y or N AddTemp_2Flow Upgrade candidate: gage is actively reporting stage and/or flow, but not water temperature Text - Y or N