Metadata: Identification_Information: Citation: Citation_Information: Originator: Pamela L. Campbell Originator: Amy E. East Originator: Christopher H. Conaway Publication_Date: 20220124 Title: Polycyclic aromatic hydrocarbons (PAHs) in the San Lorenzo River, Santa Cruz, California, USA, from 2015 to 2016 Geospatial_Data_Presentation_Form: comma-delimited text Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9GB8YSZ Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, California Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P9GB8YSZ Larger_Work_Citation: Citation_Information: Originator: Pamela L. Campbell Originator: Amy E. East Originator: Christopher H. Conaway Publication_Date: 2021 Title: Polycyclic aromatic hydrocarbons (PAHs) and suspended sediment concentrations in the San Lorenzo River, Santa Cruz, California, USA Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9GB8YSZ Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, CA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P9GB8YSZ Description: Abstract: Polycyclic aromatic hydrocarbons (PAHs) are reported for water samples collected from the San Lorenzo River water during the rainy seasons from 2015 to 2016. Samples were collected during 2-, 5- and close to 10 year flood events. Purpose: These data were collected and analyzed to determine possible concentration changes in contaminant load [polycyclic aromatic hydrocarbons (PAHs)] in the San Lorenzo River during the wet seasons following a multi-year drought. Supplemental_Information: Additional information about the field activity from which some of these data were derived is available online at: https://cmgds.marine.usgs.gov/fan_info.php?fan=2017-606-FA Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20150928 Ending_Date: 20160315 Currentness_Reference: ground condition at time data were collected Status: Progress: Complete Maintenance_and_Update_Frequency: none planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -122.030833 East_Bounding_Coordinate: -122.030833 North_Bounding_Coordinate: 36.9908333 South_Bounding_Coordinate: 36.9908333 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: inlandWaters Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: Water-Quality Parameters Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: laboratory methods Theme_Keyword: chemical analysis Theme_Keyword: gas chromatography Theme_Keyword: floods Theme_Keyword: water quality Theme_Keyword: suspended material (water) Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: geochemistry Theme_Keyword: water quality Theme_Keyword: coastal pollution Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Hazards and Resources Program Theme_Keyword: CMHRP Theme_Keyword: Pacific Coastal and Marine Science Center Theme_Keyword: PCMSC Theme_Keyword: Organic Geochemistry Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:618aad62d34ec04fc9c6c664 Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: State of California Place_Keyword: Santa Cruz County Place_Keyword: San Lorenzo River Access_Constraints: None Use_Constraints: USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey and USGS California Water Science Center, Santa Cruz field office as the originators of the dataset and in products derived from these data. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Person: PCMSC Science Data Coordinator Contact_Address: Address_Type: mailing and physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Native_Data_Set_Environment: Agilent A/D ChemStation (version B.01) was used with Microsoft Windows XP Professional to acquire data. During data acquisition, all signals acquired by the analytical instrument are converted from analog signals to digital signals in the detector. The digital signal is transmitted to ChemStation electronically and stored in the signal data file. A data file comprises a group of files, by default stored in the subdirectory of the data folder with a .D extension. Cross_Reference: Citation_Information: Originator: Conaway, C.H. Originator: Draut, A. E. Originator: Echols, K.R. Originator: Storlazzi, C.D Originator: Ritchie, A. Publication_Date: 2013 Title: Episodic suspended sediment transport and elevated polycyclic aromatic hydrocarbon concentrations in a small, mountainous river in coastal California. Other_Citation_Details: Conaway, C.H., Draut, A.E., Echols, K.R., Storlazzi, C.D., and Ritchie, A., 2013, Episodic suspended sediment transport and elevated polycyclic aromatic hydrocarbon concentrations in a small, mountainous river in coastal California: River Research and Applications, vol. 29, p. 919-932. Online_Linkage: https://doi.org/10.1002/rra.2582 Cross_Reference: Citation_Information: Originator: East, A.E. Originator: Stevens, A.W. Originator: Ritchie, A.C. Originator: Barnard, P.L. Originator: Campbell-Swarzenski, P.L. Originator: Collins, B.D. Originator: Conaway, C.H. Publication_Date: 2013 Title: A regime shift in sediment export from a coastal watershed during a record wet winter, California: Implications for landscape response to hydroclimatic extremes. Other_Citation_Details: East, A.E., Stevens, A.W., Ritchie, A.C., Barnard, P.L., Campbell-Swarzenski, P.L., Collins, B.D., and Conaway, C.H., 2018, A regime shift in sediment export from a coastal watershed during a record wet winter, California: Implications for landscape response to hydroclimatic extremes: Earth Surface Processes and Landforms, vol. 43, p. 2562-2577. Online_Linkage: https://doi.org/10.1002/esp.4415 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Surrogate standards and an internal standard were used for validation, recoveries, and quantification of PAH concentrations. A method and instrument blank were added to each batch of water samples analyzed. Logical_Consistency_Report: No formal logical accuracy tests were conducted. Completeness_Report: Dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: A formal accuracy assessment of the horizontal positional information in the data set has not been conducted. The horizontal accuracy is based on a hand-held Garmin GPS with a stated manufacturers accuracy of +/- 3.0 m Lineage: Process_Step: Process_Description: River water samples were collected using a US D-95 water sampler, which was lowered throughout the water column by hand from a bridge-box platform beneath a pedestrian bridge in Santa Cruz, California located roughly 2 km upstream from the river mouth. The sampler was strategically deployed using a hand-operated reel winch to maintain a constant transit rate during sampling. Depth-integrated samples for PAH analysis were collected in acid-cleaned, methanol-dichlormethane (1:1, v:v) rinsed 1-liter Teflon bottles using a 0.64-cm (0.25-in.) diameter nozzle. Samples from the Teflon US D-95 bottles were carefully transferred to 4.0 L amber glass bottles which were pre-cleaned for trace organic and trace element sampling (I-CHEM). Repetitive samples were combined to provide the 4.0-liter volume for the PAH analyses. Samples were immediately transported to the USGS laboratory in Santa Cruz, California, where 30 mL of HPLC-grade dichloromethane (DCM) was added to the amber glass containers and the amber bottles were capped and inverted. The bottles were stored at 20-degrees Celsius until extraction. Process_Date: 20160319 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: P. L. Swarzenski Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Position: Geochemistry Laboratory Manager Contact_Address: Address_Type: mailing and physical Address: 2885 Mission St. City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-888-7214 Contact_Electronic_Mail_Address: pswarzenski@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: point Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: point Point_and_Vector_Object_Count: 38 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.001 Longitude_Resolution: 0.001 Geographic_Coordinate_Units: decimal degrees Geodetic_Model: Horizontal_Datum_Name: D_WGS_1984 Ellipsoid_Name: D_WGS_1984 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257224 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Attribute table comprised of a comma-delimited text file with the first line being a header line. Entity_Type_Definition: Table containing attribute information associated with the dataset Entity_Type_Definition_Source: Producer defined Attribute: Attribute_Label: Lab_ID Attribute_Definition: Unique lab id given to each sample Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Unrepresentable_Domain: YY-sample number, where YY is the 2-digit year of analysis followed by sequential numbering from the first sample of that year Attribute: Attribute_Label: Date_of_Collection Attribute_Definition: Day, month, and year sample was collected Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 28-Sep-15 Range_Domain_Maximum: 15-Mar-16 Attribute_Units_of_Measure: Dates in dd-mm-yy format. Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Time_of_Sampling Attribute_Definition: Time of day sample was collected Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 00:00 Range_Domain_Maximum: 23:59 Attribute_Units_of_Measure: hh:mm in 24-hr format Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Latitude Attribute_Definition: Latitude of sampling station in decimal degrees Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 36.99083333 Enumerated_Domain_Value_Definition: latitude of the sampling location Enumerated_Domain_Value_Definition_Source: producer defined Attribute: Attribute_Label: Longitude Attribute_Definition: Longitude of sampling station Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -122.0308333 Enumerated_Domain_Value_Definition: longitude of the sampling location Enumerated_Domain_Value_Definition_Source: producer defined Attribute: Attribute_Label: milliliters_sampled Attribute_Definition: Volume of river water sample collected Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2372 Range_Domain_Maximum: 4273 Attribute_Units_of_Measure: milliliters Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: naphthalene Attribute_Definition: Concentration for 2 ring PAH naphthalene Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 54.1 Attribute_Units_of_Measure: ng/l Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: methyl_naphthalene Attribute_Definition: Concentration for 2 ring PAH naphthalene Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 15.1 Attribute_Units_of_Measure: nanogram per liter Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: acenaphthylene Attribute_Definition: Concentration for 3 ring PAH acenaphthylene Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 44.1 Attribute_Units_of_Measure: nanogram per liter Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: acenaphthene Attribute_Definition: Concentration for 3 ring PAH acenaphthene Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 40.0 Attribute_Units_of_Measure: nanogram per liter Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: fluorene Attribute_Definition: Concentration for 3 ring PAH fluorene Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 10.6 Attribute_Units_of_Measure: nanogram per liter Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: dibenzothiophene Attribute_Definition: Concentration for 3 ring sulfur-containing PAH dibenzothiophene Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 5.8 Attribute_Units_of_Measure: nanogram per liter Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: phenanthrene Attribute_Definition: Concentration for 3 ring PAH phenanthrene Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 30.2 Attribute_Units_of_Measure: nanogram per liter Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: anthracene Attribute_Definition: Concentration for 3 ring PAH anthracene Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 3.5 Attribute_Units_of_Measure: nanogram per liter Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: methyl_anthracene Attribute_Definition: Concentration for 3 ring PAH alkylated anthracene Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 5.6 Attribute_Units_of_Measure: nanogram per liter Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: methyl_phenanthrene Attribute_Definition: Concentration for 3 ring PAH alkytlated phenanthrene Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 7.9 Attribute_Units_of_Measure: nanogram per liter Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: methyl phenanthrene Attribute_Definition: Concentration for 3 ring PAH alkytlated phenanthrene Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 6.7 Attribute_Units_of_Measure: nanogram per liter Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: methyl_phenanthrene Attribute_Definition: Concentration for 3 ring PAH alkytlated phenanthrene Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 3.2 Attribute_Units_of_Measure: nanogram per liter Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: pyrene Attribute_Definition: Concentration for 4 ring PAH pyrene Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.1 Range_Domain_Maximum: 170.0 Attribute_Units_of_Measure: nanogram per liter Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: fluoranthene Attribute_Definition: Concentration for 4 ring PAH fluoranthene Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.1 Range_Domain_Maximum: 415.6 Attribute_Units_of_Measure: nanogram per liter Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: chrysene Attribute_Definition: Concentration for 4 ring PAH chrysene Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0 Range_Domain_Maximum: 23.1 Attribute_Units_of_Measure: nanogram per liter Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: benz(a)anthracene Attribute_Definition: Concentration for 4 ring PAH benz(a)anthracene Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0 Range_Domain_Maximum: 73.6 Attribute_Units_of_Measure: nanogram per liter Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: benzo(b)fluoranthene Attribute_Definition: Concentration for 5 ring PAH benzo(b)fluoranthene Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0 Range_Domain_Maximum: 51.1 Attribute_Units_of_Measure: nanogram per liter Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: benzo(k)fluoranthene Attribute_Definition: Concentration for 5 ring PAH benzo(k)fluoranthene Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0 Range_Domain_Maximum: 16.6 Attribute_Units_of_Measure: nanogram per liter Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: benzo(e)pyrene Attribute_Definition: Concentration for 5 ring PAH benzo(e)pyrene Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0 Range_Domain_Maximum: 30.1 Attribute_Units_of_Measure: nanogram per liter Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: benzo(a)pyrene Attribute_Definition: Concentration for 5 ring PAH benzo(a)pyrene Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0 Range_Domain_Maximum: 35.3 Attribute_Units_of_Measure: nanogram per liter Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: perylene Attribute_Definition: 5 ring PAH perylene Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0 Range_Domain_Maximum: 38.5 Attribute_Units_of_Measure: nanogram per liter Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: indeno(1,2,3-c,d)pyrene Attribute_Definition: Concentration for 6 ring PAH indeno(1,2,3-c,d)pyrene Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0 Range_Domain_Maximum: 31.7 Attribute_Units_of_Measure: nanogram per liter Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: dibenz(a,h)anthracene Attribute_Definition: Concentration for 5 ring PAH dibenz(a,h)anthracene Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0 Range_Domain_Maximum: 9.3 Attribute_Units_of_Measure: nanogram per liter Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: benzo(g,h,i)perylene Attribute_Definition: Concentration for 6 ring PAH benzo(g,h,i)perylene Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0 Range_Domain_Maximum: 42.1 Attribute_Units_of_Measure: nanogram per liter Attribute_Measurement_Resolution: 0.1 Overview_Description: Entity_and_Attribute_Overview: The first line of the csv file is a header line. Entity_and_Attribute_Detail_Citation: U.S. Geological Survey Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey - ScienceBase Contact_Address: Address_Type: mailing and physical Address: Denver Federal Center, Building 810, Mail Stop 302 City: Denver State_or_Province: CO Postal_Code: 80225 Contact_Voice_Telephone: 1-888-275-8747 Contact_Electronic_Mail_Address: sciencebase@usgs.gov Resource_Description: SanLorenzoRiver_PAH_2015-2016.csv Distribution_Liability: Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: comma-delimited text Format_Version_Number: version 2102 Format_Information_Content: csv file of PAH data File_Decompression_Technique: no compression applies Transfer_Size: 0.031 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/618aad62d34ec04fc9c6c664 Network_Resource_Name: https://www.sciencebase.gov/catalog/item/618aad62d34ec04fc9c6c664 Network_Resource_Name: https://doi.org/10.5066/P9GB8YSZ Access_Instructions: Data can be downloaded using the Network_Resource_Name links. The first link is a direct link to download the zipped file of data and metadata. The second link points to a landing page with metadata and data. The third link points to the landing page for the entire data release. Fees: None. Technical_Prerequisites: These data can be viewed with Excel software or any text-reading software. Metadata_Reference_Information: Metadata_Date: 20220124 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Person: PCMSC Science Data Coordinator Contact_Address: Address_Type: mailing and physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998