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Best Practices

On the Best Practices for Lake Water Quality page, you can easily filter guidance based on your specific needs and activities. Simply browse by category — Shoreline Care, Responsible Boating, Septic & Sewer, and Agriculture and Rural — to find targeted actions that help protect and improve lake health. Whether you live on the shoreline, enjoy time on the water, manage a septic system, or operate rural or agricultural land, these filters make it simple to access practical steps that support clean, healthy lakes.

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Shoreline Best Practices

Shop Coldwater Lake Association's Native Plant Sale to Protect all of our Lakes

2/12/2026

 
SHOP NOW

Septic System Policy in Michigan

2/11/2026

 
Below are helpful resources mentioned in the Septic System Policy in Michigan video. 
​
  • Find your state Senator: https://senate.michigan.gov/senators/all-senators/
  • Find your state Representative: https://www.house.mi.gov/#findARepresentativeForm
  • About Michigan Saves Loan Program for septic replacement: Septic System Replacement | Michigan Saves Loan Program
  • EPA Inspection Recommendations: https://www.epa.gov/septic/how-care-your-septic-system

Maintaining your Shoreline Property for a Healthy Lake

2/10/2026

 
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Watch These Videos
Watch these five short videos developed for the Michigan Shoreland Stewards Program regarding the four zones (shoreline, buffer, upland, and lake) of a lakefront property. ​


​A healthy lake relies on connected natural zones that protect water quality and habitat.
Native plants in and around the water are essential. In shallow areas and along the shore, they stabilize soil, absorb excess nutrients, reduce wave and wake impacts, and provide habitat for fish and beneficial insects. When vegetation is removed or replaced with turf grass or seawalls, lakes become more prone to erosion, algae blooms, and declining water quality.
What happens on land matters too. The buffer and upland areas that drain toward the lake help filter runoff before it reaches the water. Maintaining natural vegetation, limiting fertilizer use, reducing impervious surfaces, managing stormwater with plants or rain gardens, and protecting wetlands all reduce the flow of nutrients and contaminants into the lake.
Think of lake health as a system. The lake, shoreline, buffer, and upland zones work together to protect water quality, support wildlife, and preserve recreation and beauty. Protecting and restoring these natural zones is one of the most effective ways to keep a lake healthy for future generations.

​Calling All Water Sporters to Be Wake Wise

2/4/2026

 
Wake boats are not the only type of boat that can cause damage.  All motorized vessels create wakes and propeller wash that can cause shoreline erosion, impact the lakebed, damage property, and disturb other boaters. Boaters are responsible for the damage and injuries their wake may cause and should follow these Michigan State regulations.

In Michigan, "slow, no wake speed" is defined as the slowest speed at which a vessel can still maintain steering. You must operate at a slow, no-wake speed within 100 feet of the following: 
  • The shoreline, if in water less than three feet deep
  • Any dock, pier, or raft
  • Any moored or anchored vessel
  • Any marked swimming area or person in the water 
Key details for specific watercraft
  • Personal Watercraft (PWC): When operating a PWC, there are additional restrictions. You must stay at least 200 feet from a  shoreline unless you are traveling at a slow, no-wake speed and moving perpendicularly to the shoreline. PWC operators also cannot cross within 150 feet behind another vessel (except another PWC) moving faster than a slow, no-wake speed.
  • Water sports: A vessel or the person being towed (e.g., water skier) must maintain a distance of 100 feet from the shoreline, docks, and other vessels.​

Wake Boats Should Stay in Deeper Waters

2/4/2026

 
Wake Boat activity has increased substantially in recent years.  While the challenges and excitement of the sport are undeniable, they do produce large wakes which can have harmful side effects to our lakes.

Large wakes erode the shoreline and stir up bottom sediment which introduces phosphorus back into the water column.  Phosphorus can cause algae blooms.  Sediment hinders water clarity, can clog fish gills and suffocate fish eggs.  View the video  revealing adversarial impact from wake boats on lakes below. 

To adhere to the State of Michigan Department of Natural Resources recommendations please stay at least 500’ from shore, and in water more than 15 feet deep. Your help in both upholding these guidelines and spreading the word will go a long way towards maintaining the health of our lake.
​

Natural Shorelines

2/4/2026

 
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    Protecting our lakes doesn’t happen on its own.
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    ​Every contribution helps protect and improve our lakes.
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Marble-Coldwater Clean Water Partnership
P..O. Box 22
Quincy, MI  49082
[email protected]

  • Home
  • Survey
  • Get Involved
    • How You Can Help
    • Volunteer
  • ​All Eyes On the Water
  • Watershed Management
    • Watershed Management Plan
    • Monitoring & Data
  • Best Practices
  • News
  • Donate
    • Donate
    • Become A Sponsor
    • In Kind Support
    • Pledge a Cash Match for Grant Applications
  • Calendar
  • About
    • Who We Are
    • Join Our Email List
    • FAQ
  • Contact