{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Sindy M. Mejia", "hasEmail": "mailto:smejia@usgs.gov"}, "description": "This metadata record contains 5 tables of sediment concentration data used to assess correlations of land use with detections and concentrations of polychlorinated biphenyls,per-and- poly-fluoroalkyl substances, elemental metal composition, percent organic carbon and fines. Microbial communities were measured in each sample to identify the presence of dechlorinating microorganisms in the ponds. Samples were collected from 63 best management practices wet ponds in four counties of Maryland in July 2020. ", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P13NBEPZ", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.65f8b1aed34e1aa81b7ac88b.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_65f8b1aed34e1aa81b7ac88b", "keyword": ["Anne Arundel County", "Back River watershed", "Baltimore County", "Maryland", "Montgomery County", "PCBs", "PFAS", "Patapsco River", "Patapsco watershed", "Potomac River", "Prince George's County", "USGS:65f8b1aed34e1aa81b7ac88b", "best management practices", "geoscientificInformation", "inlandWaters", "sediment", "sedimentology", "stormwater management", "water quality", "wet ponds"], "modified": "2026-08-12T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-77.0510, 38.8589, -76.4294, 39.3920", "theme": ["geospatial"], "title": "Polychlorinated biphenyls and per-and-poly-fluoroalkyl substances, elemental metal concentrations, percent organic carbon and fines, and microbial communities from sediment samples collected in best management practice (BMP) wet ponds in four Maryland counties, 2020"}