Metadata: chempt

chempt

This page last updated: 07/25/2018
Metadata created using Minnesota Geographic Metadata Guidelines


Go to Section:
  1. Overview
  2. Data Quality
  3. Data Organization
  4. Coordinate System
  5. Attributes
  6. Distribution - Get Data
  7. Metadata Reference

Section 1: Overview

Originator:Minnesota Department of Natural Resources

Title: chempt

Abstract: Data include wells and surface waters sampled in Sherburne County, Minnesota for natural chemistry of groundwater by DNR and MPCA staff for major cations and anions, trace elements, tritium, stable isotopes, and carbon-14.

Purpose: Sherburne County Geologic Atlas, Part B, County Geologic Atlas Series C-32

Time Period of Content Date:

Currentness Reference: data were acquired or accessed between 2013-2014

Progress: Complete

Maintenance and Update Frequency: None Planned

Spatial Extent of Data: Sherburne County, Minnesota

Bounding Coordinates: -94.15
-93.51
45.57
45.24

Place Keywords: Sherburne County, Minnesota

Theme Keywords: groundwater, water chemistry, residence time, stable isotopes, wells

Theme Keyword Thesaurus: None

Access Constraints: None

Use Constraints: Users may wish to verify critical information; sources include both the references here and information on file in the offices of the Minnesota Geological Survey and the Minnesota Department of Natural Resources. Every effort has been made to ensure the interpretation shown conforms to sound geologic and cartographic principles. This map should not be used to establish legal title, boundaries, or locations of improvements.

Contact Person Information: Holly Johnson, GIS Specialist
Minnesota Department of Natural Resources
500 Lafayette Rd
St. Paul, MN  55155-4025
Phone: 651-259-5693
Email: holly.je.johnson@state.mn.us

Browse Graphic: None available

Associated Data Sets: Sherburne County Geologic Atlas, Part A, County Geologic Atlas Series C-32, published by the Minnesota Geological Survey (MGS), 2013. More information and downloadable data for Part A are available on the MGS data site: http://www.mngs.umn.edu/county_atlas/countyatlas.htm

Section 2: Data Quality

Attribute Accuracy: 1:100,000

Logical Consistency: Data are topologically correct using ArcGIS 10.4.1

Completeness: Complete

Horizontal Positional Accuracy:

Vertical Positional Accuracy: NA

Lineage: This file primarily contains well locations and associated inorganic and isotope chemistry sample analyses for wells sampled for the Sherburne County Geologic Atlas, Part B. Data also include surface water samples. Some data are available in table format only (chempt_other).

Chemistry data are managed in a MS Access database. Excel tables of chemistry data are available online for download at http://www.dnr.state.mn.us/waters/groundwater_section/mapping/chemdataaccess.html

Section 3: Spatial Data Organization (not used in this metadata)


Section 4: Coordinate System

Horizontal Coordinate Scheme: Universal Transverse Mercator

UTM Zone Number: 15

Horizontal Datum: NAD83

Horizontal Units: meters

Vertical Datum:

Vertical Units:

Depth Datum:

Depth Units:

Section 5: Attributes

Overview:

Detailed Citation:

Table Detail:
chempt
Field NameValid ValuesDefinitionDefinition Source
Relateid
-
Four 0's followed by 6-digit unique number for wells, or the Lake ID from DNR Lakes Database + 2 digits for a site at a lake (01, 02, etc.).
AQUIFER
-
County Well Index aquifer code.
AQUIFER_Q
-
Quaternary aquifer name, usually mapped at county scale. Quaternary aquifers are named after surficial and buried sand units shown on Plate 4, Part A. Bedrock aquifers are represented by "bdrk".
XSEC
-
Cross section number associated with well, letter indicates published hydrogeologic cross section shown on Part B.
TRITIUM
-
Tritium in Tritium Units (TU).
TRIT_AGEenumeratedResidence time estimated from tritium value.
Cold Wargreater than 15 TU
recent8 to 15 TU
mixedgreater than 1 TU and less than 8 TU
vintageless than or equal to 1 TU
C14_YEAR
-
Groundwater residence time in years, estimated by carbon-14 isotope analysis (model estimated age in years rounded to 1 significant digit)
CHLORIDE
-
Chloride concentration in parts per million
BROMIDE
-
Bromide concentration in parts per million
CL_BR
-
Chloride to bromide ratio
NITRATE_N
-
Nitrate concentration in parts per million reported as Nitrogen
DEUTERIUM
-
Deuterium (permil)
OXYGEN_18
-
Oxygen-18 (permil)
ARSENIC
-
Arsenic in parts per billion
MANGANESE
-
Manganese in parts per billion
DATASOURCE
-
Source of data
PROJECT
-
Project for which the data was collected
SITETYPE
-
Type of site where water sample was collected

Section 6: Distribution

Publisher: Minnesota Department of Natural Resources, Ecological and Water Resources Division

Publication Date: 09/12/2017

Contact Person Information: Holly Johnson, GIS Specialist
Minnesota Department of Natural Resources
500 Lafayette Rd
St. Paul, MN  55155-4025
Phone: 651-259-5693
Email: holly.je.johnson@state.mn.us

Distributor's Data Set Identifier: chempt

Distribution Liability: These data were prepared from publicly available information only. Every reasonable effort has been made to ensure the accuracy of the factual data on which these files are based. However, the Department of Natural Resources does not warrant the accuracy, completeness, or any implied uses of these data. Users may wish to verify critical information; sources include both the references here and information on file in the offices of the Department of Natural Resources.

Ordering Instructions: Download zip file of metadata and feature classes by clicking "I AGREE" below.

PDFs of the Sherburne County Geologic Atlas can be downloaded at: http://www.dnr.state.mn.us/waters/programs/gw_section/mapping/platesum/shercga.html

Online Linkage: I AGREE to the notice in "Distribution Liability" above. Clicking to agree will either begin the download process, link to a service, or provide more instructions. See "Ordering Instructions" above for details.

Section 7: Metadata Reference

Metadata Date: 07/25/2018

Contact Person Information: Holly Johnson, GIS Specialist
Minnesota Department of Natural Resources
500 Lafayette Rd
St. Paul, MN  55155-4025
Phone: 651-259-5693
Email: holly.je.johnson@state.mn.us

Metadata Standard Name: Minnesota Geographic Metadata Guidelines

Metadata Standard Version: 1.2



This page last updated: 07/25/2018
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