Gathering Samples, Collecting Data, Building Knowledge

Our Chemistry and Flow Program is conducted for organizations and municipalities in the Middle Huron Partners, Livingston Watershed Advisory Group (WAG) and the Alliance of Downriver Watersheds (ADW) to better understand nutrient and contaminant loading dynamics in the Huron River Watershed. The program also aims to identify pollutant loading hot spots and evaluate collective progress of best management practices designed to minimize stormwater-related impairments. Our long-term goal for this program is to evaluate progress toward improving overall water quality within the Huron River Watershed.

Learn About Chemistry and Flow Monitoring volunteer opportunities and sign up here.

Click here for Chemistry and Flow Volunteer Resources

The Chemistry and Flow Monitoring Program was developed in response to community interest in increasing the data available on nutrient contributions to the Huron River and its lakes and tributaries. The data are intended to lead to a better understanding of pollution from non-point and stormwater sources in subdrainages of the watershed. An improved understanding of sources helps our community partners in the Middle Huron Initiative, Livingston WAG, and ADW focus and track pollution reduction efforts as they strive to meet pollution limits in Ford, Belleville, Strawberry, Brighton, and Ore lakes, as well as bacteria limits for sections of the river and Honey Creek.

Our Chemistry and Flow Monitoring Program is designed to complement monitoring conducted by municipalities, universities, the Michigan Department of Environment, Great Lakes and Energy (EGLE) and others. The sites are sampled for nutrients, bacteria and background chemistry twice monthly from April to September. Data are collected from stream locations that facilitate the establishment of relationships between land cover and ecological stream health.

Our extensive monitoring program takes place in the Upper, Middle, and Lower sections of the watershed. For more information on each of these sections and what we are doing in each one, dive in here.

Chemistry and Flow Monitoring Sites

The Program began with monitoring in the Middle Huron as a 2002 field season pilot, during which only six sites and four months were studied. In 2003, four additional sites were added to the program and all ten sites were studied for five months. In 2007, storm events were targeted at four sites (Allens, Traver, Malletts and Swift Run), where fixed water level sensors were established. This was done to provide additional data on nutrient conditions during high-flow events. At the end of 2008, two additional sites were added in Livingston County to provide an upstream comparison with another nutrient-enriched watershed. With the addition of grants from MDEQ, more frequent site visits and storm monitoring were added, as well as sampling of “investigative” sites to identify potential pollutant hot spots. Storm monitoring is being conducted thanks to the donation of an autosampler by the City of Ann Arbor.

The Program expanded throughout the Chain of Lakes area (Livingston County) in August 2010, during which 8 sites were added. Storm monitoring is being conducted thanks to the donation of an autosampler by the Livingston County Drain Commissioner’s Office. The program continues with funding from the Livingston WAG. In 2012, the program is expanding to the ADW in Wayne County, with assistance from Wayne County environmental staff and direct funding from the ADW.

Program Partners

Realization of the monitoring program requires ample resources, from providing volunteer training and coordination to analyzing water samples and entering and interpreting the results. Many friends of the Huron River dedicated their time, expertise and equipment to the project. The Program team is grateful for the generous contributions from the following partners who enabled the continuation and growth of this important research and stewardship program.

  • City of Ann Arbor Water Treatment Plant provides analysis of all water samples for Washtenaw County monitoring.
  • City of Brighton Wastewater Treatment Plant provides analysis of all water samples for Livingston County monitoring.
  • Downriver Utility Wastewater Authority in Wyandotte provides analysis of water samples for Wayne County monitoring.
  • Livingston County Drain Commissioner’s Office provided field equipment.
  • University of Michigan, Occupational Safety and Environmental Health Department provided sample containers through 2005.
  • The Huron River Watershed Council, Adopt-A-Stream program loaned the Marsh McBirney Flo-Mate Portable Flowmeter Model 2000 and other field equipment.
  • Ypsilanti Community Utilities Authority previously provided analysis of water samples for Wayne County monitoring.

Data and Reports

The most recent chemistry and flow monitoring reports were compiled for the Middle Huron/Washtenaw County data through the 2018 season. The reports include comprehensive analysis of all monitoring results through the most recent season.

Previous Presentations & Reports

2018 Middle Huron Monitoring Report Web Page

2018 Chemistry & Flow Monitoring Results Presentation

2016 Huron Chain of Lakes (Livingston County) Monitoring Presentation

2016 Middle Huron Monitoring Presentation

2016 ADW Monitoring Presentation

2013 Middle Huron Monitoring Report

2013 ADW Monitoring Report

2012 Huron Chain of Lakes Monitoring Report

For past reports, please contact  Andrea Paine at

Current Year Raw Data

As 2019 raw lab results are received monthly, they will be posted below.

Washtenaw County Wayne County
Raw Data April 2019 Raw Data April 2019
Raw Data May 2019 Raw Data May 2019
Raw Data June 2019 Raw Data June 2019
Raw Data July 2019 Raw Data July 2019
Raw Data August 2019 Raw Data August 2019
Raw Data September 2019 Raw Data September 2019


The Chemistry and Flow Monitoring Program is currently funded by local government agencies working together towards watershed management through the Middle Huron Partners, Livingston WAG and ADW.

It was funded from 2010 through 2011 as part of a TMDL Implementation Planning grant from the United States Environmental Protection Agency, through MDEQ’s Storm Water Program.

More Information

For addition information, contract Andrea Paine at (734) 769-5123 x613 or