Delay in analysis of external lab surface water and groundwater nutrient data: Final update

This is an update to the previous post concerning external lab surface water and groundwater nutrient data.

All backlog samples have been shipped and are being analyzed by the external lab alongside more recently collected sample on a site-by-site basis. We expect all of the backlog to be published by mid-2022. Going forward, samples will be stored frozen and shipped out every other month in a batch from each Domain. Data will be published approximately 90 days following sample receipt.

The following analytes are part of the backlog and new shipping schedule:

• nitrate plus nitrite as nitrogen (NO3+NO2 – N)
• nitrite as nitrogen (NO2 - N)
• ammonium as nitrogen (NH4 - N)
• orthophosphate (Ortho - P)
• total phosphorus (TP)
• total dissolved phosphorus (TDP)

Users should refer to the swc_externalLabSummaryData table, which is part of the expanded package for both Chemical properties of surface water (DP1.20093.001) and Chemical properties of groundwater (DP1.20092.001), for details of laboratory method detection limits associated with date ranges for previously analyzed data.

Please use the Contact Form for further inquiries; please select DP1.20093.001 (for surface water) or DP1.20092.001 (for groundwater) in the Data Product drop-down list and include the term "RITM0030592" in the body of your request.