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 &quot;x&quot; and &quot;y&quot; fields of the layer's attribute table.<div><br /></div><div><div>For questions, contact the SWRCB Division of Water Rights:  <span style='color:rgb(32, 33, 36); font-family:Roboto, arial, sans-serif; font-size:16px;'>DWR@waterboards.</span><span style='color:rgb(32, 33, 36); font-family:Roboto, arial, sans-serif; font-size:16px;'>ca</span><span style='color:rgb(32, 33, 36); font-family:Roboto, arial, sans-serif; font-size:16px;'>.gov.</span></div></div><div><span style='color:rgb(32, 33, 36); font-family:Roboto, arial, sans-serif; font-size:16px;'><br /></span></div><div><span style='color:rgb(32, 33, 36); font-family:Roboto, arial, sans-serif; font-size:16px;'><b>Data dictionary:</b></span></div><div><table border='0' cellpadding='0' cellspacing='0' style='border-collapse:
collapse;width:556pt' width='741'>

<tbody><tr height='20' style='height:15.0pt'>
<td height='20' style='height:15.0pt;width:140pt' width='186'><u>Field Name</u></td>
<td style='width:233pt' width='311'><u>Description</u></td>
<td style='width:183pt' width='244'><u>Data Type</u></td>
</tr>
<tr height='20' style='height:15.0pt'>
<td height='20' style='height:15.0pt;width:140pt' width='186'>SiteID</td>
<td style='width:233pt' width='311'>Site ID</td>
<td style='width:183pt' width='244'>Text</td>
</tr>
<tr height='20' style='height:15.0pt'>
<td height='20' style='height:15.0pt;width:140pt' width='186'>SiteName</td>
<td style='width:233pt' width='311'>Site Name</td>
<td style='width:183pt' width='244'>Text</td>
</tr>
<tr height='20' style='height:15.0pt'>
<td height='20' style='height:15.0pt;width:140pt' width='186'>Operator</td>
<td style='width:233pt' width='311'>Agency or entity which operates
the gage</td>
<td style='width:183pt' width='244'>Text</td>
</tr>
<tr height='38' style='height:28.5pt'>
<td height='38' style='height:28.5pt;width:140pt' width='186'>DataSource</td>
<td style='width:233pt' width='311'>The agency or entity which
publishes the data online (source not exclusive)</td>
<td style='width:183pt' width='244'>Text</td>
</tr>
<tr height='20' style='height:15.0pt'>
<td height='20' style='height:15.0pt;width:140pt' width='186'>SiteStatus</td>
<td style='width:233pt' width='311'>Is the site, in general, active
or inactive?</td>
<td style='width:183pt' width='244'>Text - Active or Inactive</td>
</tr>
<tr height='20' style='height:15.0pt'>
<td height='20' style='height:15.0pt;width:140pt' width='186'>Stage_YN</td>
<td style='width:233pt' width='311'>Did the gage report stage at any
time?</td>
<td style='width:183pt' width='244'>Text - Y or N or U
&lt;Unknown&gt;</td>
</tr>
<tr height='57' style='height:42.75pt'>
<td height='57' style='height:42.75pt;width:140pt' width='186'>Stage_POR</td>
<td style='width:233pt' width='311'>Stage period of record in days
(if a site had multiple stage sensors or duration codes, then the max POR was
used)</td>
<td style='width:183pt' width='244'>Integer</td>
</tr>
<tr height='20' style='height:15.0pt'>
<td height='20' style='height:15.0pt;width:140pt' width='186'>Stage_Status</td>
<td style='width:233pt' width='311'>Status of stage reporting
(active/inactive)</td>
<td style='width:183pt' width='244'>Text</td>
</tr>
<tr height='38' style='height:28.5pt'>
<td height='38' style='height:28.5pt;width:140pt' width='186'>Stage_RealTime</td>
<td style='width:233pt' width='311'>Is/was stage reported hourly or
more frequently? </td>
<td style='width:183pt' width='244'>Text - Y or N</td>
</tr>
<tr height='20' style='height:15.0pt'>
<td height='20' style='height:15.0pt;width:140pt' width='186'>Flow_YN</td>
<td style='width:233pt' width='311'>Did the gage report flow at any
time?</td>
<td style='width:183pt' width='244'>Text - Y or N or U
&lt;Unknown&gt;</td>
</tr>
<tr height='57' style='height:42.75pt'>
<td height='57' style='height:42.75pt;width:140pt' width='186'>Flow_POR</td>
<td style='width:233pt' width='311'>Flow period of record in days
(if a site had multiple flow sensors or duration codes, then the max POR was
used)</td>
<td style='width:183pt' width='244'>Integer</td>
</tr>
<tr height='20' style='height:15.0pt'>
<td height='20' style='height:15.0pt;width:140pt' width='186'>Flow_Status</td>
<td style='width:233pt' width='311'>Status of flow reporting
(active/inactive)</td>
<td style='width:183pt' width='244'>Text</td>
</tr>
<tr height='38' style='height:28.5pt'>
<td height='38' style='height:28.5pt;width:140pt' width='186'>Flow_RealTime</td>
<td style='width:233pt' width='311'>Is/was flow reported hourly or
more frequently? </td>
<td style='width:183pt' width='244'>Text - Y or N</td>
</tr>
<tr height='95' style='height:71.25pt'>
<td height='95' style='height:71.25pt;width:140pt' width='186'>WatQual_YN</td>
<td style='width:233pt' width='311'>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</td>
<td style='width:183pt' width='244'>Text - Y or N or U
&lt;Unknown&gt;</td>
</tr>
<tr height='57' style='height:42.75pt'>
<td height='57' style='height:42.75pt;width:140pt' width='186'>WatQual_POR</td>
<td style='width:233pt' width='311'>Water quality period of record
in days (if a site had multiple water quality sensors or duration codes, then
the max POR was used)</td>
<td style='width:183pt' width='244'>Integer</td>
</tr>
<tr height='38' style='height:28.5pt'>
<td height='38' style='height:28.5pt;width:140pt' width='186'>WatQual_Status</td>
<td style='width:233pt' width='311'>Status of water quality
reporting (active/inactive)</td>
<td style='width:183pt' width='244'>Text</td>
</tr>
<tr height='38' style='height:28.5pt'>
<td height='38' style='height:28.5pt;width:140pt' width='186'>WatQual_RealTime</td>
<td style='width:233pt' width='311'>Is/was water quality reported
hourly or more frequently? </td>
<td style='width:183pt' width='244'>Text - Y or N</td>
</tr>
<tr height='38' style='height:28.5pt'>
<td height='38' style='height:28.5pt;width:140pt' width='186'>Temp_YN</td>
<td style='width:233pt' width='311'>Did the gage report water
temperature at any time?</td>
<td style='width:183pt' width='244'>Text - Y or N or U
&lt;Unknown&gt;</td>
</tr>
<tr height='57' style='height:42.75pt'>
<td height='57' style='height:42.75pt;width:140pt' width='186'>Temp_POR</td>
<td style='width:233pt' width='311'>Temperature period of record in
days (if a site had multiple temperature sensors or duration codes, then the
max POR was used)</td>
<td style='width:183pt' width='244'>Integer</td>
</tr>
<tr height='38' style='height:28.5pt'>
<td height='38' style='height:28.5pt;width:140pt' width='186'>Temp_Status</td>
<td style='width:233pt' width='311'>Status of temperature reporting
(active/inactive)</td>
<td style='width:183pt' width='244'>Text</td>
</tr>
<tr height='38' style='height:28.5pt'>
<td height='38' style='height:28.5pt;width:140pt' width='186'>Temp_RealTime</td>
<td style='width:233pt' width='311'>Is/was temperature reported
hourly or more frequently? </td>
<td style='width:183pt' width='244'>Text - Y or N</td>
</tr>
<tr height='38' style='height:28.5pt'>
<td height='38' style='height:28.5pt;width:140pt' width='186'>FloodMgmt</td>
<td style='width:233pt' width='311'>Primary purpose of gage is flood
management</td>
<td style='width:183pt' width='244'>Text - Y or N</td>
</tr>
<tr height='38' style='height:28.5pt'>
<td height='38' style='height:28.5pt;width:140pt' width='186'>EcosysMgmt</td>
<td style='width:233pt' width='311'>Primary purpose of gage is
ecosystem management (flow and water quality)</td>
<td style='width:183pt' width='244'>Text - Y or N</td>
</tr>
<tr height='38' style='height:28.5pt'>
<td height='38' style='height:28.5pt;width:140pt' width='186'>GrdwtrMgmt</td>
<td style='width:233pt' width='311'>Primary purpose of gage is
groundwater management</td>
<td style='width:183pt' width='244'>Text - Y or N</td>
</tr>
<tr height='20' style='height:15.0pt'>
<td height='20' style='height:15.0pt;width:140pt' width='186'>PubSafety</td>
<td style='width:233pt' width='311'>Primary purpose of gage is
public safety</td>
<td style='width:183pt' width='244'>Text - Y or N</td>
</tr>
<tr height='38' style='height:28.5pt'>
<td height='38' style='height:28.5pt;width:140pt' width='186'>WtrSupply</td>
<td style='width:233pt' width='311'>Primary purpose of gage is water
supply (municipal or agricultural)</td>
<td style='width:183pt' width='244'>Text - Y or N</td>
</tr>
<tr height='38' style='height:28.5pt'>
<td height='38' style='height:28.5pt;width:140pt' width='186'>Ref_GagesII</td>
<td style='width:233pt' width='311'>Is the gage site considered a
reference site in Gages II dataset?</td>
<td style='width:183pt' width='244'>Text - Y or N</td>
</tr>
<tr height='20' style='height:15.0pt'>
<td height='20' style='height:15.0pt;width:140pt' width='186'>StrmOrder</td>
<td style='width:233pt' width='311'>Strahler stream order</td>
<td style='width:183pt' width='244'>Integer</td>
</tr>
<tr height='20' style='height:15.0pt'>
<td height='20' style='height:15.0pt;width:140pt' width='186'>UCDStrmClass</td>
<td style='width:233pt' width='311'>UCD eFlows stream classification</td>
<td style='width:183pt' width='244'>Text</td>
</tr>
<tr height='57' style='height:42.75pt'>
<td height='57' style='height:42.75pt;width:140pt' width='186'>StreamType</td>
<td style='width:233pt' width='311'>Type of water conveyance the
gage is measuring (e.g. Stream/River, Canal/Ditch, Artificial Path,
etc.) </td>
<td style='width:183pt' width='244'>Text</td>
</tr>
<tr height='20' style='height:15.0pt'>
<td height='20' style='height:15.0pt;width:140pt' width='186'>TotDASqKM</td>
<td style='width:233pt' width='311'>Total drainage area in square
kilometers</td>
<td style='width:183pt' width='244'>Double</td>
</tr>
<tr height='20' style='height:15.0pt'>
<td height='20' style='height:15.0pt;width:140pt' width='186'>TotDASqMi</td>
<td style='width:233pt' width='311'>Total drainage area in square
miles</td>
<td style='width:183pt' width='244'>Double</td>
</tr>
<tr height='76' style='height:57.0pt'>
<td height='76' style='height:57.0pt;width:140pt' width='186'>GNISID_MedRes</td>
<td style='width:233pt' width='311'>GNIS (Geographic Names
Information System) identification number of the NHD line segment the gage is
on (from the NHD Medium Resolution dataset)</td>
<td style='width:183pt' width='244'>Text</td>
</tr>
<tr height='57' style='height:42.75pt'>
<td height='57' style='height:42.75pt;width:140pt' width='186'>RchCd_MedRes</td>
<td style='width:233pt' width='311'>Reach Code identification number
of the NHD line segment the gage is on (from the NHD Medium Resolution
dataset)</td>
<td style='width:183pt' width='244'>Text</td>
</tr>
<tr height='57' style='height:42.75pt'>
<td height='57' style='height:42.75pt;width:140pt' width='186'>COMID_MedRes</td>
<td style='width:233pt' width='311'>COM ID (common identifier) of
the NHD line segment the gage is on (from the NHD Medium Resolution dataset)</td>
<td style='width:183pt' width='244'>Text</td>
</tr>
<tr height='20' style='height:15.0pt'>
<td height='20' style='height:15.0pt;width:140pt' width='186'>WebLink</td>
<td style='width:233pt' width='311'>Web address to access each
gage's data</td>
<td style='width:183pt' width='244'>Text</td>
</tr>
<tr height='38' style='height:28.5pt'>
<td height='38' style='height:28.5pt;width:140pt' width='186'>x_orig</td>
<td style='width:233pt' width='311'>X coordinate as provided by
source entity (NAD83 CA Teale Albers meters)</td>
<td style='width:183pt' width='244'>Double</td>
</tr>
<tr height='38' style='height:28.5pt'>
<td height='38' style='height:28.5pt;width:140pt' width='186'>y_orig</td>
<td style='width:233pt' width='311'>Y coordinate as provided by
source entity (NAD83 CA Teale Albers meters)</td>
<td style='width:183pt' width='244'>Double</td>
</tr>
<tr height='20' style='height:15.0pt'>
<td height='20' style='height:15.0pt;width:140pt' width='186'>WtrshdNm_HUC8</td>
<td style='width:233pt' width='311'>Name of containing HUC8
watershed</td>
<td style='width:183pt' width='244'>Text</td>
</tr>
<tr height='38' style='height:28.5pt'>
<td height='38' style='height:28.5pt;width:140pt' width='186'>HUC8</td>
<td style='width:233pt' width='311'>Containing HUC 8 (Hydrologic
Unit Code 8) identifier</td>
<td style='width:183pt' width='244'>Text</td>
</tr>
<tr height='20' style='height:15.0pt'>
<td height='20' style='height:15.0pt;width:140pt' width='186'>WtrshdNm_HUC10</td>
<td style='width:233pt' width='311'>Name of containing HUC10
watershed</td>
<td style='width:183pt' width='244'>Text</td>
</tr>
<tr height='38' style='height:28.5pt'>
<td height='38' style='height:28.5pt;width:140pt' width='186'>HUC10</td>
<td style='width:233pt' width='311'>Containing HUC 10 (Hydrologic
Unit Code 10) identifier</td>
<td style='width:183pt' width='244'>Text</td>
</tr>
<tr height='20' style='height:15.0pt'>
<td height='20' style='height:15.0pt;width:140pt' width='186'>WtrshdNm_HUC12</td>
<td style='width:233pt' width='311'>Name of containing HUC12
watershed</td>
<td style='width:183pt' width='244'>Text</td>
</tr>
<tr height='38' style='height:28.5pt'>
<td height='38' style='height:28.5pt;width:140pt' width='186'>HUC12</td>
<td style='width:233pt' width='311'>Containing HUC 12 (Hydrologic
Unit Code 12) identifier</td>
<td style='width:183pt' width='244'>Text</td>
</tr>
<tr height='57' style='height:42.75pt'>
<td height='57' style='height:42.75pt;width:140pt' width='186'>GageGap_Status</td>
<td style='width:233pt' width='311'>Status of Gage for Gage Gap
Analysis (e.g. Well-Gaged, AWG = Almost Well-Gaged, or Exclude)</td>
<td style='width:183pt' width='244'>Text</td>
</tr>
<tr height='38' style='height:28.5pt'>
<td height='38' style='height:28.5pt;width:140pt' width='186'>Infrastructure</td>
<td style='width:233pt' width='311'>Gage is suspected of being
located on infrastructure</td>
<td style='width:183pt' width='244'>Text - Y or N</td>
</tr>
<tr height='20' style='height:15.0pt'>
<td height='20' style='height:15.0pt;width:140pt' width='186'>ReactivateSF</td>
<td style='width:233pt' width='311'>Gage is a candidate for
reactivation</td>
<td style='width:183pt' width='244'>Text - Y or N</td>
</tr>
<tr height='95' style='height:71.25pt'>
<td height='95' style='height:71.25pt;width:140pt' width='186'>Priority_Reactivate</td>
<td style='width:233pt' width='311'>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)</td>
<td style='width:183pt' width='244'>Text</td>
</tr>
<tr height='38' style='height:28.5pt'>
<td height='38' style='height:28.5pt;width:140pt' width='186'>AddFlow_2Stage</td>
<td style='width:233pt' width='311'>Upgrade candidate: gage is
actively reporting stage, potential upgrade to flow and stage</td>
<td style='width:183pt' width='244'>Text - Y or N</td>
</tr>
<tr height='57' style='height:42.75pt'>
<td height='57' style='height:42.75pt;width:140pt' width='186'>AddFlow_2WQ</td>
<td style='width:233pt' width='311'>Upgrade candidate: gage is
actively reporting water quality or temperature data, but not flow and/or
stage.</td>
<td style='width:183pt' width='244'>Text - Y or N</td>
</tr>
<tr height='38' style='height:28.5pt'>
<td height='38' style='height:28.5pt;width:140pt' width='186'>AddTelemetry</td>
<td style='width:233pt' width='311'>Upgrade candidate: gage is
actively reporting stage and/or flow, but not in real-time</td>
<td style='width:183pt' width='244'>Text - Y or N</td>
</tr>
<tr height='38' style='height:28.5pt'>
<td height='38' style='height:28.5pt;width:140pt' width='186'>AddTemp_2Flow</td>
<td style='width:233pt' width='311'>Upgrade candidate: gage is
actively reporting stage and/or flow, but not water temperature</td>
<td style='width:183pt' width='244'>Text - Y or N</td>
</tr></tbody></table></div>