Michigan Public Water Supply PFAS Statewide Surveillance [Michigan]
Michigan Dept. of Environment, Great Lakes, and Energy · 2025 Full Details
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Full Details
- Title
- Michigan Public Water Supply PFAS Statewide Surveillance [Michigan]
- Description
- The locations that have been sampled in this effort include Community Water Supplies (including regional and municipal water supplies, manufactured housing communities, residential apartment buildings, etc.), Nontransient Noncommunity Water Supplies (including schools, businesses, childcare providers, Michigan Head Start locations, etc.), and Transient Noncommunity Water Supplies (children's camps, medical care providers, adult foster care, motels, and resorts). Results are provided in parts per trillion. A part per trillion (ppt) is the equivalent of 1 drop of water in 20 Olympic-size swimming pools. Definitions of the information provided in the sampling results table: System Name: Water supply system name WSSN: Water Supply Serial Number; unique identifier for each public water supply Sample Date: The date samples were taken at the water supply Sys Loc Code: Location code created by the EQuIS database, used by AECOM The System Type column lists the type of public water supply; CWS: Community Water Supply (Type I) NCWS: Noncommunity Water Supply (Type II) Non-transient: Non-transient noncommunity water supplies (Type II) are monitored for compliance under Michigan"s Safe Drinking Water Act. ADFSTC: Non-Community Water Supply (Adult Foster Care Provider) CHLCMP: Non-Community Water Supply (Children"s Camp) DAYCARE: Non-Community Water Supply (Child Care Provider) INDUS: Non-Community Water Supply (Industry) MEDCAR: Non-Community Water Supply (Medical Care Provider) MOTEL: Non-Community Water Supply (Hotel or Motel) MUN: Community Water Supply (for example Municipal Supply, Apartment, Nursing Home, Prison, etc.) PFAS analytes are listed in individual columns (ppt). These include the 14 PFAS compounds tested under EPA method 537 and the 18 compounds tested under EPA method 537.1. If the result listed is "ND" the lab did not detect, or find, that PFAS was in the water sample above the method reporting limit. HFPO-DA (Hexafluoropropylene oxide-dimer acid, also referred to as "GenX") as of 8/3/2020 is a regulated analyte in Michigan with an MCL = 370 ppt PFBS (Perfluorobutane sulfonic acid) as of 8/3/2020 is a regulated analyte in Michigan with an MCL = 420 ppt PFHxA (perfluorohexanoic acid) as of 8/3/2020 is a regulated analyte in Michigan with an MCL = 400,000 ppt PFHxS (perfluorohexane sulfonic acid) as of 8/3/2020 is a regulated analyte in Michigan with an MCL = 51 ppt PFNA (perfluorononanoic acid) as of 8/3/2020 is a regulated analyte in Michigan with an MCL = 6 ppt PFOA (perfluorooctanoic acid) as of 8/3/2020 is a regulated analyte in Michigan with an MCL = 8 ppt PFOS (perfluorooctane sulfonic acid) as of 8/3/2020 is a regulated analyte in Michigan with an MCL = 16 ppt 11Cl-PF3OUdS (11-chloroeicosafluoro-3-oxaundecane-1-sulfonic Acid) is currently a non-regulated analyte in Michigan 9Cl-PF3ONS (9-chlorohexadecafluoro-3-oxanone-1-sulfonic acid) is currently a non-regulated analyte in Michigan ADONA (4,8-dioxa-3H-perfluorononanoic acid) is currently a non-regulated analyte in Michigan FOSA (Perfluorooctanesulfonamide acid) is currently a non-regulated analyte in Michigan 4:2FTS (4:2 Fluorotelomer acid) is currently a non-regulated analyte in Michigan 6:2FTS (6:2 Fluorotelomer acid) is currently a non-regulated analyte in Michigan 8:2FTS (8:2 Fluorotelomer acid) is currently a non-regulated analyte in Michigan NEtFOSAA (2-(N-ethylperfluorooctanesulfonamido) acetic acid) is currently a non-regulated analyte in Michigan NMeFOSAA (2-(N-methylperfluorooctanesulfonamido) acetic acid) is currently a non-regulated analyte in Michigan PFBA (Perfluorobutanoic acid) is currently a non-regulated analyte in Michigan PFDA (perfluorodecanoic acid) is currently a non-regulated analyte in Michigan PFDoA (perfluorododecanoic acid) is currently a non-regulated analyte in Michigan PFDS (Perfluorodecanesulfonic acid) is currently a non-regulated analyte in Michigan PFHpA (perfluoroheptanoic acid) is currently a non-regulated analyte in Michigan PFHpS (Perfluoroheptanesulfonic acid) is currently a non-regulated analyte in Michigan PFNS (Perfluorononanesulfonic acid) is currently a non-regulated analyte in Michigan PFPeA (Perfluoropentanoic acid) is currently a non-regulated analyte in Michigan PFPeS (Perfluoropentanesulfonic acid) is currently a non-regulated analyte in Michigan PFTeDA (perfluorotetradecanoic acid) is currently a non-regulated analyte in Michigan PFTrDA (perfluorotridecanoic acid) is currently a non-regulated analyte in Michigan PFUnA (perfluoroundecanoic acid) is currently a non-regulated analyte in Michigan Sys Sample Code: The identification number that corresponds to the sample taken. Lab Name: Laboratory providing PFAS analysis via EPA method 537 or 537.1. Location Name: Specific sample location, when applicable. Lab Number: The certified lab code number. Note: LabName indicated values may vary for the same lab (issue with data coming from two different databases). LabNumber will help clarify these cases. Phase Code: Sampling phase code Task Code: Sampling task code Lab sdg: Lab work order code Analytic Method: EPA analytical method used na: not applicable Treatment Status: MP = The midpoint of the influent and effluent points, Raw = The water was not treated for any analytes or compounds, Treated = The water was treated, but not necessarily for PFAS. The data represents the PFAS sample sites, with each site having multiple samples taken, dates for each sample, and the analytical results for each sample. These analytical results include detections for 14 - 28 PFAS analytes, depending on the analytical method used. Each result has a "flags" column that corresponds to important data qualifiers. Understanding the flags: Contaminant data often include flags, also known as qualifiers, which are notes attached to data that gives detailed information about that particular result. In the drinking water PFAS data layer, PFAS analytes associated with a "U" flag were not detected in the sample and therefore a null value is displayed. "J" flagged results indicates an estimated concentration as the result is above the minimum detection limit (MDL) but below the laboratory reporting limit. "J-" flagged results indicates an estimated concentration as the result is above the minimum MDL, below the laboratory reporting limit, but biased low. "UJ" flagged results indicates a not detected at the value estimated reporting limit. "R" flagged results indicates a rejected sample as serious quality control issues render the result value bot usable. "*" flagged results indicates that the result values have not been verified. HFPODAFlags: Any qualifiers associated with a HFPO-DA result value PFBSFlags: Any qualifiers associated with a PFBS result value PFHxAFlags Any qualifiers associated with a PFHxA result value PFHxSFlags: Any qualifiers associated with a PFHxS result value PFNAFlags: Any qualifiers associated with a PFNA result value PFOAFlags: Any qualifiers associated with a PFOA result value PFOSFlags: Any qualifiers associated with a PFOS result value PF3OUdS11ClFlags: Any qualifiers associated with a 11Cl-PF3OUdS result value PF3ONS9ClFlags: Any qualifiers associated with a 9Cl-PF3ONS result value ADONAFlags: Any qualifiers associated with a ADONA result value FOSAFlags: Any qualifiers associated with a FOSA result value FTS42Flags: Any qualifiers associated with a 4:2FTS result value FTS62Flags: Any qualifiers associated with a 6:2FTS result value FTS82Flags: Any qualifiers associated with a 8:2FTS result value NEtFOSAAFlags: Any qualifiers associated with a NEtFOSAA result value NMeFOSAAFlags: Any qualifiers associated with a NMeFOSAA result value PFBAFlags: Any qualifiers associated with a PFBA result value PFDAFlags: Any qualifiers associated with a PFDA result value PFDoAFlags: Any qualifiers associated with a PFDoA result value PFDSFlags: Any qualifiers associated with a PFDS result value PFHpAFlags: (Any qualifiers associated with a PFHpA result value PFHpSFlags: Any qualifiers associated with a PFHpS result value PFNSFlags: Any qualifiers associated with a PFNS result value PFPeAFlags: Any qualifiers associated with a PFPeA result value PFPeSFlags: Any qualifiers associated with a PFPeS result value PFTeDAFlags: Any qualifiers associated with a PFTeDA result value PFTrDAFlags: Any qualifiers associated with a PFTrDA result value PFUnAFlags: Any qualifiers associated with a PFUnA result value Questions regarding the drinking water sampling PFAS data can be directed to EGLE-PFAS-DrinkingWater@michigan.gov .
- Creator
- Michigan Dept. of Environment, Great Lakes, and Energy
- Temporal Coverage
- Last Modified: 2025-07-25
- Date Issued
- 2025-06-30
- Rights
- This application or dataset, along with any maps, data, content and other information contained within it and all output from the application (together the “Information”), is provided as a public service, and there are no restrictions on the use, reproduction, or distribution of the Information. It is your responsibility to use the Information for a legally permissible purpose. This Information is provided “AS IS” and on an “AS AVAILABLE” basis. The State of Michigan (“State”) makes no warranties, express or implied, regarding the accuracy, adequacy, reliability, timeliness, or completeness of this Information. THE STATE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS INFORMATION, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NONINFRINGEMENT OF PROPRIETARY RIGHTS. THE STATE WILL NOT BE LIABLE, REGARDLESS OF THE FORM OF ACTION, WHETHER IN CONTRACT, TORT, NEGLIGENCE, STRICT LIABILITY OR BY STATUTE OR OTHERWISE, FOR ANY CLAIM FOR CONSEQUENTIAL, INCIDENTAL, INDIRECT, OR SPECIAL DAMAGES, INCLUDING WITHOUT LIMITATION LOST PROFITS AND LOST BUSINESS OPPORTUNITIES, RELATED TO THE ACCESS OR USE OF THIS INFORMATION. IN NO EVENT WILL THE STATE BE LIABLE FOR ANY AMOUNTS THAT MAY RESULT FROM THE ACCESS OR USE OF THIS INFORMATION, REGARDLESS OF THE FORM OF ACTION, WHETHER IN CONTRACT, TORT, NEGLIGENCE, STRICT LIABILITY, OR BY STATUTE OR OTHERWISE. By accessing or using this Information, you agree that you will not make any claims against the State or any of its departments, divisions, officers, or employees related to your use of the Information. These terms are governed by and interpreted under the laws of the State of Michigan without regard to conflict of laws provisions. Nothing in these terms is meant to impact or replace any existing rights or licenses, such as copyright, trademark, or patent protections, in materials or content that may be located on the site or portal containing the Information.
- Access Rights
- Public
- Format
- ArcGIS FeatureLayer
- Language
- English
- Date Added
- August 10, 2025
- Provenance Statement
- The metadata for this resource was last retrieved from State of Michigan Open Data Portal on 2025-08-24.
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Cite and Reference
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Citation
Michigan Dept. of Environment, Great Lakes, and Energy (2025). Michigan Public Water Supply PFAS Statewide Surveillance [Michigan]. . https://gis-michigan.opendata.arcgis.com/datasets/egle::michigan-public-water-supply-pfas-statewide-surveillance (web service) -
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