wa-gov/watershedhealthsedimentsos2020-dkev-6sm4
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WatershedHealth_Sediment_SOS2020

Average percent of "pebble count" stations that are of sand or smaller size. Data are from Watershed Health Monitoring surveys conducted by the Department of Ecology during 2009-2019. Data from Recovery Regions are intended for the 2020 State of the Salmon Report. Reference the metric "PCT_SandFines" in the Watershed Health database. The reference category is based on Table 2 of Bryce et al (2010) J. N. Am. Benthol. Soc., 2010, 29(2):657–672 plus 5.5% for adjustment to bankfull channel rather than wetted.

Columns

NameSocrata field nameColumn name in sgr mountData typeDescription
Sand_and_Silt_Categorysand_and_silt_categorysand_and_silt_categoryTextIs the Sand_and_Silt above the estimated optimum for invertebrates in a channel measured bank to bank.
Sand_and_Silt_pctsand_and_silt_pctsand_and_silt_pctNumberAverage (for samples 1 and 2) PCT_SandFines (%)
Sample2sample2sample2TextData collection event for the duplicate
Sample1sample1sample1TextData collection event for the first sample in the survey
ReferenceRegionreferenceregionreferenceregionTextMembership among Department of Ecology's 3 reference regions
RecoveryRegionrecoveryregionrecoveryregionTextSalmonid Recovery Region membership
SurveyWeight_kmsurveyweight_kmsurveyweight_kmNumberStream length (km) represented by the site for the given survey
SurveyRegionsurveyregionsurveyregionTextStatus & Trends Region membership
SURVEY_YEARsurvey_yearsurvey_yearTextSurvey Round and year of sampling
NHDpSTRAHLERnhdpstrahlernhdpstrahlerNumberStrahler stream order by comparison with 1:100,000 NHDplus
SITE_IDsite_idsite_idTextUnique site identifier from the Washington Master Sample
EcoregionecoregionecoregionTextMembership among EPA Level 3 Ecoregions
 
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