The MPCA uses the Environmental Quality Information System (EQuIS) to store and manage monitoring data and associated laboratory results from streams, lakes, groundwater, ambient air, soil, sediment, and gas, collected through MPCA programs and partnerships.

EQuIS application and tools

EQuIS Pro, an application available for core users, is used to maintain the database and create custom reports. The agency has limited number of concurrent Pro licenses. Enterprise, an application primarily available to MPCA staff, provides an EQuIS connection useful for submitting and retrieving data. In the future, a data-submission portal will be incorporated into EQuIS Enterprise to automate more data submittal and response.

EQuIS offers a variety of software tools and standards to provide fast, dependable data collection and reporting.

EQuIS Data Gathering Engine

The MPCA uses EQuIS Data Gathering Engine (EDGE), a field data gathering tool that populates spreadsheets and generates electronic data deliverables for EQuIS field data storage. Contact an MPCA project manager to see if EDGE is being used in a specific program. The tool requires additional training, and individual programs may have custom standard operating procedures.


Lab_MN is an electronic data deliverable format that allows labs to submit results in an EQuIS-ready format. It incorporates EQuIS data standards and enables remote error checking prior to submitting data to the MPCA. The format was designed to capture more sample and result metadata and allows labs to submit quality assurance data. All major labs supplying EQuIS-bound data must adopt this standard.

Chain of custody

Chain of custody (COC) procedures must be followed to maintain and document sample possession. The MPCA has developed a COC that can be populated within the EDGE application or on paper. The COC provides the labs with the information necessary to work in the Lab_MN format. The COC is available within EDGE_MN and by downloading the COC template.

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