Jabez Continuous Water Quality Data

Data determined to be unreliable during QA/QC checks are flagged with accompanying comments. In some cases, partial or suspected fouling may introduce uncertainty without providing sufficient evidence to warrant flagging or exclusion from success criteria calculations. These data are not flagged but include a note in the Comments column indicating the associated uncertainty.

MDNR utilizes all available information in QA/QC of these data including field photographs of the data sondes at each site, concomitant data collected at each site, experience gained from continuous monitoring at other sites in Maryland, and guidance provided by the data sonde manufacturers. MDNR relies on this weight-of-evidence approach combined with best professional judgement when flagging data. This process may be refined over time with more experience in assessing water quality data at the Jabez III monitoring sites. Despite strict adherence to QA/QC procedures for this project, some level of subjectivity in flagging data is unavoidable and may lead to occasional discrepancies among data assessors. All raw data, including those with flags and/or comments, are permanently retained and accessible through MDNR's Eyes on Jabez website for ongoing assessment and future re-evaluation.