Water quality indicator, water quality parameters, and recreational parameter data set for study period. This dataset is associated with the following publication: Wanjugi, P., M. Sivaganesan, A. Korajkic, B. McMinn, C. Kelty, E. Rhodes, M. Cyterski, R. Zepp, K. Oshima, E. Stachler, J. Kinzelman, S. Kurdas, M. Citriglia, F. Hsu, B. Acrey, and O. Shanks. Incidence of Somatic and F+ Coliphage in Great Lake Basin Recreational Waters. WATER RESEARCH. Elsevier Science Ltd, New York, NY, USA, 140: 200-210, (2018).

QPCR standard curve data and example test sample data. This dataset is associated with the following publication: Lane, M.J., J.N. McNair, R.R. Rediske, S. Briggs, M. Sivaganesan, and R. Haugland. Simplified Analysis of Measurement Data from A Rapid E. coli qPCR Method (EPA Draft Method C) Using A Standardized Excel Workbook. WATER. MDPI AG, Basel, SWITZERLAND, 12(3): 775, (2020).

This dataset contains E. coli data collected at the Outfall of the Nogales International Wastewater Treatment Plant (NIWTP; SC6, 312724110580501) by U.S. International Boundary and Water Commission (IBWC) personnel. The IBWC collects discrete samples at the Outfall of the NIWTP daily or weekly by dipping a 100 mL sterilized IDEXX bottle in the centroid of flow. Samples are kept chilled and shipped to Turner Laboratories Inc. or Legend Technical Services Inc. Both laboratories use standard method 9223B for E. coli analysis, which uses the Colilert™-24 (Colilert) and Quanti-Tray®/2000 (Quanti-Tray) system. The holding time specified for wastewater is 30 hours. The dataset is a compilation of multiple paper records. E.coli concentrations reported as 0 most probable number (MPN) per100 mL were qualified as less than the 1 MPN/100mL specified by the Colilert test. The datasest includes E. coli concentration data for the period of June 01, 2009 to March 31, 2015.

EPA Draft Method C QPCR cycle threshold (Ct) measurements of standardized reference materials as described in D-EMMD-MEB-025-QAPP-01 and Journal article. This dataset is associated with the following publication: Sivaganesan, M., T. Aw, S. Briggs, E. Dreelin, A. Aslan, S. Dorevitch, A. Shrestha, N. Isaacs, J. Kinzelman, G. Kleinheinz, R. Noble, R. Rediske, B. Scull, S. Rosenberg, B. Weberman, T. Sivy, B. Southwell, S. Siefring, K. Oshima, and R. Haugland. Standardized data quality acceptance criteria for a rapid Escherichia coli qPCR method (Draft Method C) for water quality monitoring at recreational beaches. WATER RESEARCH. Elsevier Science Ltd, New York, NY, USA, 156: 456-464, (2019).

EPA Draft Method C QPCR cycle threshold (Ct) measurements of standardized reference materials and blinded test samples as described in D-EMMD-MEB-025-QAPP-01 and Journal article. This dataset is associated with the following publication: Aw, T., M. Sivaganesan, S. Briggs, E. Dreelin, A. Aslan, S. Dorevitch, A. Shrestha, N. Isaacs, J. Kinzelman, G. Kleinheinz, R. Noble, R. Rediske, B. Scull, S. Rosenberg, B. Weberman, T. Sivy, B. Southwell, S. Siefring, K. Oshima, and R. Haugland. Evaluation of multiple laboratory performance and variability in analysis of recreational freshwaters by a rapid Escherichia coli qPCR method (Draft Method C). WATER RESEARCH. Elsevier Science Ltd, New York, NY, USA, 156: 465-474, (2019).

EPA-generated bioassay data published with 2020 bottled water study manuscript. This dataset is associated with the following publication: Bradley, P., K. Romanok, K. Smalling, M. Focazio, N. Evans, S. Fitzpatrick, C. Givens, S. Gordon, J. Gray, E. Green, D. Griffin, M. Hladik, L. Kanagy, J. Lisle, K. Loftin, R.B. McCleskey, E. Medlock Kakaley, A. Navas-Acien, D. Roth, and C. Weis. Bottled Water Contaminant Exposures and Predicted Human Effects. ENVIRONMENT INTERNATIONAL. Elsevier B.V., Amsterdam, NETHERLANDS, 171(107701): 1, (2023).

Deidentified datasets and water quality data from EPA, SCCWRP and UC Berkeley recreational water epidemiology studies. This dataset is associated with the following publication: Wade, T., B. Arnold, K. Schiff, J. Colford, S. Weisberg, J. Griffith, and A. Dufour. Health risks to children from exposure to fecally-contaminated recreational water. PLOS ONE. Public Library of Science, San Francisco, CA, USA, issue}: 17, (2022).

Measurements of E. coli collected at Coalinga Canal. Currently collected twice a year, previously collected quarterly. Access further information for this data set by contacting Bureau of Reclamation, California-Great Basin Region, Environmental Affairs Division (CGB-157). See ResultAttributes for STAFF_GAUGE, SMPL_DEPTH, SMPL_CATEGORY_NAME, METHOD_CODE, RESULT_RL, RESULT_RL-UNIT_STD_NAME, RESULT_MDL, RESULT_MDL-UNIT_STD_NAME, USBR_QA_SUBTYPE_NAME, USBR_QULFR_DESCRIPTION. STAFF_GAUGE is the water height in decimal feet measured by gauge (e.g., 15.2). SMPL_DEPTH is the vertical depth at which sample is collected (e.g., 0 - 15 cm). For water samples: depth below water/air interface. For sediment and soil samples: depth below water/solid or air/solid interface. SMPL_CATEGORY_NAME is the category type of sample (e.g., Composite). METHOD_CODE is the name of method used to obtain result (e.g., EPA 200.8). RESULT_RL is the result reporting limit (accounting for dilution) (e.g., 0.02). RESULT_RL-UNIT_STD_NAME is the unit associated with RESULT_RL (e.g., mg/L). RESULT_MDL is the result method detection limit (e.g., 0.007). RESULT_MDL-UNIT_STD_NAME is the unit associated with RESULT_MDL (e.g., mg/L). USBR_QA_SUBTYPE_NAME is the quality control type of the sample (e.g., USBR_BLANK_SPIKE). USBR_QULFR_DESCRIPTION is the quality assurance description (if any) (e.g., Result may have a high bias.).

Paired data for estimates of E. coli concentrations by culture analysis and E. coli gene copies by Draft Method C for 6965 ambient water samples from state of Michigan. This dataset is associated with the following publication: Haugland, R., K. Oshima, and M. Sivaganesan. Large-scale comparison of E. coli levels determined by culture and a qPCR method (EPA Draft Method C) in Michigan towards the implementation of rapid, multi-site beach testing. JOURNAL OF MICROBIOLOGICAL METHODS. Elsevier Science Ltd, New York, NY, USA, 184: 106186, (2021).

Data for Tables and Figures in Journal of AWWA Manuscript. This dataset is associated with the following publication: Patterson, C., J. Burkhardt, D. Schupp, E.R. Krishnan, S. Dyment, S. Merritt, L. Zintek, and D. Kleinmaier. Effectiveness of Point-of-Use/Point-of-Entry Systems to Remove Select Per- and Poly- fluoroalkyl Substances from Drinking Water - ANP - journal article. Journal AWWA. American Water Works Association, Denver, CO, USA, 1(2): 12, (2019).