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Protecting land and water

Learn actions you can take in the way you care for your property to protect our land and water.

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The Hennepin County Landowner Guide is intended to help landowners care for their land and the natural resources on their property. The guide recommends practices that can be implemented to protect and enhance natural systems. Each section also suggests additional resources and publications that offer more specific information for each subject area.

Landowner guide contents

Download the entire guide (PDF 7MB) or download a specific section:

  • Protecting water resources (PDF)
    Information on ways to protect water resources such as determining your watershed, taking care of your shoreline, and avoiding or controlling invasive aquatic species
  • Preserving wetlands (PDF)
    Information on wetland types, the Wetland Conservation Act, identifying wetlands and way to protect wetlands on your property
  • Managing pastures and livestock (PDF)
    Information on proper pasture management, proper manure management, preventing water pollution, cleaning up dirty water and maintaining healthy soils
  • Maintaining wells (PDF)
    Ensure that you and your family have a healthy source of drinking water by maintaining your well, testing you well, treating contaminated water and managing unused wells
  • Maintaining septic systems (PDF)
    Protect groundwater by properly maintaining your septic system, getting your septic system pumped regularly, and keeping garbage out of your system
  • Managing your waste (PDF)
    Information on proper management of garbage including hiring a waste hauler, eliminating burn barrels, reducing waste, recycling, collecting organic waste and and properly disposing of household hazardous waste
  • Resources (PDF)
    A list of resources and publications with additional information for landowners on protecting and conserving natural resources

This resource was produced by Hennepin County in partnership with the University of Minnesota Extension.

The raindrops that fall on our streets flow through storm drains that empty directly into our lakes, creeks, rivers, and wetlands. Raindrops pick up chemicals, pollutants, and debris that they touch along the way. Every point in a raindrop's path is an opportunity to improve our water quality.

The actions listed below can help our waters immensely. Take on a few of these actions at your home and share them with others.

Also see the Ten Things You Can Do to Improve Minnesota's Lakes, Rivers and Streams brochure (PDF).

1. Salt sparingly

Shovel first, minimize salt use, sweep up excess. Just one teaspoon of salt permanently contaminates five gallons of fresh water. Shovel snow first, apply salt only to ice patches, use as little salt as possible, and sweep up leftover salt when ice is gone. Remember: More isn't better, and sodium chloride, the most common deicer, stops working below 15F degrees.

2. Keep streets clear of leaves and grass clippings

Sweep, rake, or mulch or compost. Stormwater runoff carries leaves and grass clippings from streets into lakes and streams, where their nutrients cause destructive algae blooms. Use these nutrients to your benefit. Use them as mulch for weed suppression, or make them into compost to use as fertilizer. This protects water quality--and saves money!

3. Kick the chemicals

Lawn and garden chemicals can harm pollinators and wash into the street's storm drains that connect directly into nearby lakes and streams. Encourage the growth of healthy lawns and gardens. Pull weeds by hand or use spot treatment for weeds. If you have a weed or pest problem, consult the University of Minnesota Extension website for advice. Get a soil test before applying fertilizers. If you apply fertilizer, sweep up excess from pavement. Remember, a need for chemical treatments is an option of last resort.

4. Mow high

Mow your grass to a height of three inches. Keeping your grass a little longer helps roots grow deeper into the soil, suppresses weeds, and requires less watering. If you do water, do so in the morning and ensure sprinklers only aim at the grass and the plants.

5. Scoop the poop

Pick up after pets. When pet waste is left behind, rain water washes it into lakes and streams. Pet waste contains bacteria, such as E. Coli, that can cause illness in people, pets, and wildlife. Pet waste also contains nutrients that cause destructive algae blooms in lakes and streams.

6. Adopt a storm drain

Keep drains free of leaves, grass clippings, and litter. Water entering a storm drain is carried directly to the nearest water body carrying leaves, grass, soil, litter and anything else it picks up along the way. This clogs stormwater infrastructure, contributes to street flooding, harms wildlife, and pollutes our waters. Remember, nothing but rain down the drain! Learn more and get resources at

7. Capture rain water

Capture and clean rain water and recharge groundwater. Plant a rain garden, which collects rain water runoff, lets it soak into the ground, and filters out excess nutrients and other pollutants. Pollinators can benefit, too. You could also install a rain barrel, which captures rainwater from the roof of your house or garage to use in your garden. Or you can redirect downspouts to flow into your yard instead of running off into the street. 

8. Replace turf with native plants

Pledge to plant for pollinators and clean water. Trade some of your turf for native plants or choose a turfgrass alternative, which require less mowing and watering. Native plants provide pollinator habitat, are drought resistant, and their deep roots bring rain down into our ground water. Less mowing also improves air quality. Check local ordinances for maintenance requirements.

9. Un-pave the way

Choose pervious paving for walks, patios, and driveways. Paving stories and porous pavement let water soak into the ground, recharging groundwater and keeping runoff out of the street.

10. Conserve water

Reduce water use. Water your lawn only when it's needed during dry periods. Water about one inch a week (including rain fall). Water early in the morning to reduce evaporation. Conserve water by sweeping, rather than hosing off, driveways and sidewalks. Install WaterSense fixtures inside and outside and maintain them regularly.

Hennepin County is pursuing a variety of strategies to slow the spread of aquatic invasive species, including

  • Installing permanent boat-washing stations
  • Redesigning public accesses
  • Developing interactive educational displays
  • Training volunteers to be early detectors
  • Enhancing enforcement of AIS laws
  • Deploying rapid response protocols
  • Providing grants to cities, watersheds, park districts and lake associations

Learn more about these programs.

Trees and forests provide many benefits, including improving our air and water, making ourselves and our communities healthier, reducing the urban heat island effect, providing wildlife habitat, saving energy and increasing property values.

The tree canopy in Hennepin County faces a number of threats, including development, insects and diseases, climate extremes, and poor installation and maintenance.

Hennepin County has a variety of programs and resources available to help protect and enhance our tree canopy, including information about the emerald ash borer, tree waste disposal, and tree care volunteer programs. Learn more about trees and forestry.

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