wa-gov/watershed-health-monitoring-excess-sediment-in-63h7-zpny
 
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Watershed Health Monitoring: Excess Sediment in Salmon/Trout Streams

This file lists random sites sampled by the Department of Ecology's Watershed Health Monitoring program during 2009-2016. The list is limited to those sites known to be occupied by salmon or trout at some time during the year. It also shows percentage of the stream network represented by the site and whether the observed sediment on the surface of the stream bottom exceeded levels estimated to be optimum for sediment-sensitive salmonids.

Columns

NameSocrata field nameColumn name in sgr mountData typeDescription
abv 18.5abv_18_5abv_18_5NumberThis value was calculated as follows: PCT SandFines minus 18.5. Calculation of PCT_SandFines is described in the Habitat Data Dictionary: https://fortress.wa.gov/ecy/publications/SummaryPages/1303033.html
SITE_IDsite_idsite_idTextUnique site identifier from the Washington Master Sample: https://fortress.wa.gov/ecy/gispublic/DataDownload/EAP_ENV_MasterSample.htm
SalmonOPTsalmonoptsalmonoptTextThis field designates whether the observed percentage of sand and fines exceeds the optimum (18.5%) for sediment-sensitive salmonids. See Table 2 of Bryce et al: https://www.pnamp.org/sites/default/files/BryceSAFN-JNABS-4-12-2010.pdf . We have added 5.5 % to Bryce's 13% optimum becuase Watershed Health measures the bankfull channel rather than the wetted channel that the Bryce values describe. Watershed Health data from the bankfull channel show (in a linear, 1:1 fashion) 5.5 % more sand and fines when compared to wetted stations from the same dataset.
ASWaswaswNumberAdjusted spatial weights calculated using the US EPA algorithm spsurvey. Weights indicate how many kiometers of stream that the random sample site respresents within the given survey. Weights were calculated for all radnom sites in the Watershed Health Monitoring surveys, regardless of whether salmonid habitat or not.
X_PCT SandFinesx_pct_sandfinesx_pct_sandfinesNumberThis is the average (for 1 or 2 values) of PCT SandFines as reported by the Watershed Health Monitoring Database: https://ecology.wa.gov/Research-Data/Monitoring-assessment/River-stream-monitoring/Habitat-monitoring/Watershed-health . PCT_SandFines is described in the Habitat Data Dictionary: https://fortress.wa.gov/ecy/publications/SummaryPages/1303033.html
ColcolcolTextColor = suggested color for charts
SURVEYsurveysurveyTextDesignates which monitoring pass through the state. 1 = 2009 to 2012; 2 = 2013 to 2019
SALMON_RRsalmon_rrsalmon_rrTextSalmon Revovery Region from the Washington Master Sample: https://fortress.wa.gov/ecy/gispublic/DataDownload/EAP_ENV_MasterSample.htm
salmonid habitatsalmonid_habitatsalmonid_habitatNumber1 indicates that the stream site is occupied by salmon or trout at some time during the year. This is based on Watershed Health Moniroring sampling results or Washington Department of Fish and Wildlife maps: see http://apps.wdfw.wa.gov/phsontheweb/
YearyearyearNumberYear of sampling
ppn_km_salmsedppn_km_salmsedppn_km_salmsedNumberProportion of all salmonid km in the survey (excluding those without sediment data)
Upstream Metadata