FAQs

What’s a watershed? Where’s the Gunpowder Valley?

We know you have lots of questions and we hope the Gunpowder Valley Conservancy (GVC)’s Frequently Asked Questions page can answer most of them. Stay tuned as we continue to add new resources and categories.

GENERAL

Where does the Gunpowder Valley Conservancy work?

GVC works throughout the Gunpowder watershed. The Gunpowder watershed drains 500 square miles from York County, PA through Baltimore, Carroll & Harford counties, to the shores of the Chesapeake Bay. Most of the Baltimore area's drinking water supply comes from two reservoirs located within our watershed: Prettyboy and Loch Raven.

GVC doesn't currently have a central office but our P.O. Box is in Towson. Historically, our reforestation projects focused on Loch Raven Reservoir and northern Baltimore County. We are now planting trees throughout the Gunpowder watershed. Similarly, our stream clean-ups occur throughout the watershed.

GVC sells rain barrels to anyone regardless of location. However, properties within our Clear Creeks Project area are eligible for free installation.

Our grant funding for conservation gardens are strictly limited to our Clear Creeks Project area. This now includes the entire Gunpowder watershed! Visit our Clear Creeks Project page to see whether your property qualifies.

What is a watershed?

A watershed is a land area that channels rainfall to creeks, streams, and rivers, and eventually to drainage points such as reservoirs, bays, and the ocean. Everyone lives in a watershed. Our home watershed, the Gunpowder, is our direct connection to the Chesapeake Bay.

Since watersheds operate at different scales, you are also in multiple watersheds at the same time. For example, if you live in Carney your neighborhood stream might be the Jennifer Branch. The Jennifer Branch is a tributary to the Big Gunpowder Falls. Your watersheds would be "Jennifer Branch", "Lower Gunpowder Falls", "Gunpowder" and "Chesapeake Bay". It's all connected!

I don't live in the Gunpowder watershed. How can I find my local watershed organization?

Through the years, we've been fortunate to have volunteers from across the greater Baltimore area attend our events. We love connecting people to their home watershed group.

Here are some other watershed organizations in the greater Baltimore area:

Help us make this an accurate resource. If your group needs to added or updated, send Amy Young a message.

LAND PRESERVATION

How do donated easements work?

Conservation-minded landowners can opt to donate their easement to ensure that their land is protected forever. Donated easements require the property to have significant conservation value, such as:

  • Protection of a relatively natural habitat of fish, wildlife or plants or similar ecosystem
  • Preservation of open space (including farmland and forestland) for the scenic enjoyment of the public, or pursuant to a clearly delineated public purpose and will yield a significant public benefit
  • Preservation for outdoor recreational opportunities
  • Preservation of historically important land areas or buildings

A donated easement will be managed by an appropriate government agency and/or non-profit land trust. Local options include:

  • Maryland Environmental Trust (MET) is the statewide organization that accepts donated easements. There are currently more than 140,000 acres permanently protected by MET. MET prefers easements greater than 25 acres but may consider smaller parcels if they have significant conservation value. Only easements accepted by MET are eligible for the state property and income tax credit.
  • Gunpowder Valley Conservancy (GVC) is your local land trust that can accept either donated or purchased conservation easements. GVC currently holds easements protecting more than 1,800 acres in Baltimore County. Easements accepted by GVC are eligible for federal and state income tax deductions.

 

There are several advantages to donating an easement:

  • Donations can be done quickly: Working with GVC generally takes less than 4 months to complete an easement. Working with MET takes longer due to the need to have the easement approved by the Maryland Board of Public Works, but the process is still generally quicker than the purchased easement process.
  • Charitable contribution: The landowner is responsible for the costs associated with a before and after appraisal of the property. The reduction in value of the property is a charitable contribution if the donation is accepted by a qualified conservation organization (e.g. MET, Land Preservation Trust). Keep in mind, that there must be a development right to relinquish to establish a value for a donated easement.
  • Federal income tax deductions : The value of the charitable contribution established by the appraisal may result in a federal income tax deduction of up to your adjusted gross income (AGI) with a potential carry-forward of up to 15 years, dependent upon the value of the contribution established by the appraisal.
  • Maryland income tax credit: If MET accepts your easement, you may be eligible for a Maryland income tax credit of up to $5,000 per year per person donating the easement for up to 16 years, or a maximum of $80,000 per person, dependent upon the value of the contribution established by the appraisal.
  • Estate tax reduction: Easements reduce the value of the property, meaning there is a corresponding reduction in the estate tax subject to taxation. In certain circumstances, portions of the land (up to 40% of the value) may be exempt from federal estate taxes.
  • Postmortem donation: The donation of a conservation easement is one of the only things that can be done after death to reduce the estate tax.
How do purchased easements work?

Depending on your property’s land use, location, and site assessment, it could be a candidate for a purchased easement, where you would receive direct compensation for protecting your land. Our GVC Land Preservation representative will walk you through your options as it can be a competitive process for limited funding opportunities.

  • The Gunpowder River and Coastal Rural Legacy Areas are sponsored by the Gunpowder Valley Conservancy as part of the statewide Rural Legacy Program. This program provides funding to preserve large, contiguous tracts of land to enhance natural resource, agricultural, forestry and environmental protection. GVC can assist interested landowners whose property fall within our two Rural Legacy Areas (this will be updated. Need to get maps and other links)
  • Baltimore County Department of Planning administers the Baltimore County Agricultural Land Preservation Program, which is intended to preserve working family farms that are at least 20 acres. To learn more about their criteria, visit their website or contact Megan Benjamin at mbenjamin@baltimorecountymd.gov or (410) 887-3480.
  • The Maryland Agricultural Land Preservation Foundation (MALPF) is part of the Maryland Department of Agriculture and seeks to preserve agricultural land, including farms and forest.

It generally takes longer for a purchased easement to be finalized as it requires approval by several agencies. It can be a year or more from the time you sign an agreement of sale.

Each program has its own criteria for calculating the purchase price.

  • Rural Legacy is based on a formula where the maximum payment cannot exceed 75% of the fair market value of properties in the area. Points are awarded based on the number of development rights on the property, the productive characteristics of the property, and water quality protection.
  • Agricultural easements are generally based on an appraised value of the easement (no greater than 75% of the fair market value) and property owners are asked to “discount” the purchase price.

The property may have to pay capital gains tax on the payment for your easement. Landowners are encouraged to apply as soon as possible, as some programs have deadlines for when funds are available.

What restrictions will be placed on the property

Landowners typically must give up development rights to qualify for a conservation easement.  Your land preservation options are very limited if there is not a development right to relinquish.

When an easement is created, there are a variety of restrictions that might be placed on the property to protect its agricultural and natural features. Each conservation easement is unique and crafted with your interest in mind.

Below is a summary of general restrictions; requirements may vary based on your easement holder(s) and terms.

Easement Restrictions

Streams

  • Maintain a minimum 50 foot grassed buffer
  • Larger buffers and wooded buffers (riparian forest) are encouraged whenever possible
  • Stream crossings are allowed in accordance with an approved Soil Conservation and Water Quality Plan.

Subdivision

  • Generally prohibited
  • Some non-density subdivision may be allowed in special circumstances

Additional Homes

  • Generally prohibited
  • Some additional primary residences or tenant homes may be allowed on larger parcels

Public Access

  • Not required

Timbering

  • Allowed with a Forest Management Plan
  • Conversion of a currently wooded area to a non-wooded area (clear-cutting) is not allowed

Agricultural Uses Allowed

  • No limitation to agricultural activities
  • Primary processing of products produced on the farm is allowed (e.g. creamery on a dairy farm)
  • On-site sale of products produced on the farm is allowed

Commercial Uses not Related to Agriculture

  • Generally prohibited
  • Some limited uses may be allowed

Ecosystem Marketing

  • Generally allowed
  • This includes forest banking, carbon sequestration, and related programs
What happens once my property is placed in easement?

Congratulations on taking an important step forward as a land steward! Once your property is in easement, GVC and any other co-holders of your easement will require monitoring visits at regular intervals— no more than once every year— to ensure that the easement’s terms are being upheld. You will be notified in advance, and the visit may be rescheduled to better accommodate your schedule. No access to interior of structures is allowed. Monitoring will involve outside photographs of the property and include staff and/or trained volunteers.

VOLUNTEERS

Do you have a COVID-19 volunteer policy?

GVC's top priority is, and remains, the health and safety of each of our members, staff, volunteers, and clients. Volunteers are still encouraged to stay home if they have cold or flu-like symptoms. Masks are optional.

Can all ages volunteer?

Yes! Volunteers of all ages are welcome to participate in our environmental stewardship events. Tree plantings are generally the best fit for young families. We recommend Tree Maintenance volunteers be at least 13 years old to use appropriate tools (e.g. pruners, tree loppers.)

 

What should I expect as a GVC volunteer?

While each GVC event is slightly different, we have some general advice for volunteering at our outdoor activities:

  • Be prepared to get dirty and wear clothes appropriate for yardwork! We strongly encourage all volunteers to wear closed-toe shoes, such as sneakers or boots.
  • Dress for the season. Bring a hat, rain gear, sunscreen, bug spray and/or winter layers depending on the time of year.
  • Stay hydrated. Bring your own reusable water bottle.
  • Some locations are more remote than others. We cannot guarantee that there will be restroom near the work site.

GVC will provide all the necessary tools, including work gloves. However, you are welcome to bring your own work gloves if you have a favorite pair!

Can my organization provide volunteer groups?

Yes! We love bringing groups of people together to make a positive difference in the health of our local forests and streams. Please fill out our volunteer interest form.

We encourage groups to sign-up in advance to help us plan our volunteer needs. Most of our events occur on Saturdays and Sundays.

My kids need community service learning hours; can they volunteer with GVC?

Yes! All of our volunteer events are eligible for community service learning hours. It is your child’s responsibility to bring the required paperwork to each event. You can register online at our calendar of events.

Can I lead an Eagle Scout or Gold Award project with GVC?

Yes! GVC has worked closely with several Scouts through the years to implement special projects. Contact Kim Thomas for more information.

TREE PLANTING & FOREST STEWARDSHIP

Can GVC help me plant trees on my property?

Yes! GVC is actively seeking property owners interested in planting native trees on their property. All trees are 100% covered through our grant funding with Maryland Department of Natural Resources.

Our minimum requirements are:

  • Riparian Buffer: 0.5 acre+ within 100 feet of waterway and room for 50+ native trees
  • Open Field: 1 acre+ with room for 100+ native trees

Please contact Kim Thomas for more information. You can also fill out our online Tree Planting Interest Form.

Do I have to pay to have trees planted?

No! If you are eligible for our tree planting program, there is no cost to the land owner. GVC provides the trees and arranges for a volunteer crew to plant the trees.

Click here to fill out our online Tree Planting interest form.

What types of trees do you plant?

GVC exclusively uses native shrubs and trees in our plantings. Stay tuned for additional resources!

STREAM CLEAN-UPS

How do I Adopt a Stream?

GVC hosts several FREE Adopt-a-Stream trainings each year to support people interested in becoming volunteer Stream Captains. Visit our Adopt-a-Stream page to learn more.

I hike near X stream and have noticed a ton of trash there. Can you notify someone to clean it up?

Thank you for your concern about an area that you value and enjoy. GVC's Adopt-a-Stream program helps to mobilize volunteers and train volunteer leaders (Stream Captains) to remove trash and monitor the health of waterways that need help. If you are interested in becoming a Stream Captain, we offer free training workshops several times a year. Check out our calendar of events for the next scheduled Adopt-a-Stream workshop.

STORMWATER BEST MANAGEMENT PRACTICES

What are stormwater best management practices (BMPs)?

Stormwater best management practices (BMPs) are actions that have been shown to reduce water pollution, including nitrogen, phosphorous, and total suspended solids (e.g. soil particles).

GVC works with homeowners, businesses, and organizations to install the following BMPs:

What is the Clear Creeks Project?

Coordinated by the Gunpowder Valley Conservancy (GVC), the Clear Creeks Project is a grant-funded, citizen-based initiative that helps answer a community desire to restore the water quality of our local waterways. We provide homeowners, businesses, and other institutions with resources to take action for clean, clear water within the Gunpowder watershed—our connection to the Chesapeake Bay.

You can become part of the pollution solution by participating in the Clear Creeks Project:

Questions? Contact Ebram Victoria, Director of Ecological Restoration and Design, by email

Clear Creeks Project is funded by: National Fish and Wildlife Foundation; Chesapeake Bay Trust; Baltimore County Department of Environmental Protection and Sustainability; Chesapeake and Atlantic Coastal Bays Trust Fund, administered by Maryland Department of Natural Resources.

Is my property within the Clear Creeks Project area?

If you live in the Gunpowder Watershed, your property is now within GVC's Clear Creeks Project area! View our interactive map to determine if your property is located in the Clear Creeks Project area (note it is not yet updated to reflect the entire watershed).

If you are located within the Clear Creeks Project area, you can receive:

Questions? Contact Ebram Victoria, Director of Ecological Restoration and Design, by email

What small watershed action plans (SWAPs) are part of Clear Creeks?

A: Since 2012, the Clear Creeks Project has collaborated with the Baltimore County Department of Environmental Protection and Sustainability to help reduce stormwater runoff. These actions are detailed in small watershed action plans (SWAPs) - reports that identify sources of pollution and methods to reduce pollution in local waterways.

As of 2025, Baltimore County is in the process of updating its SWAP program. Here is the list of historic SWAP documents previously used as part of GVC's Clear Creeks Project:

What are Bay-Wise practices?

Sometimes we refer to stormwater BMPs as Bay-Wise practices. They generally are the same!

GVC works closely with Baltimore County Master Gardeners to implement the University of Maryland Extension’s Bay-Wise Program. We can all be Bay-Wise when it comes to our gardens and lawns. We’ll be providing additional Bay-Wise resources here to get you on track!

RAIN BARRELS

How much rain can I collect?

A typical ½-inch rainfall will fill one 55- gallon rain barrel. To calculate how much water your barrel can collect:

  1. Multiply your roof square footage by 0.6
  2. Subtract 20% loss from splash and runoff

For example, a 2,000 sq. ft. roof can collect 1,000 gallons of rain water

  • 2,000 x 0.6 = 1,200 [Total gallons of rain water]
  • 1,200 x 0.2 = 200 [Total gallons lost]
  • 1,200 - 200 = 1,000 [Net gallons of water collected]
Do I need to filter my rain barrel water?

Rain barrel water is NOT potable. GVC uses a double layer wire mesh screen over the barrel opening to keep out debris and insects. Leaf debris, bird droppings and chemicals from your roof material won't likely be harmful to your plants.

Do rain barrels promote mosquitos?

Our rain barrels are designed to prevent mosquitos from breeding:

  • Double layer wire mesh screens over the opening
  • Installing rain barrel at a slight, downward tilt allows excess water to drain off the barrel soaking into the ground.

You can use tablets called “mosquito dunks”, they release a bacterial agent that kills mosquito larvae but does not harm people, animals, or plants.

Does GVC sell rain barrels?

Yes! We sell rain barrels in conjunction with our free rain barrel workshops. Visit our Rain Barrel program page for more information.

NATIVE PLANTS AND GARDENING

Where can I buy native plants in Baltimore?

We hope someday that all gardening centers will feature native plants. Until then, here are some local resources for buying native plants:

The Maryland Native Plant Society maintains a Buying Native Plants page with that includes nurseries across the state as well as other native plant resources.

I just moved here and want to get advice on ecologically friendly landscaping for my new yard. Can you help?

Welcome to the Gunpowder watershed! We have some great resources to share with you.

I just bought waterfront property and have been told by Baltimore County that I need to install a native plant buffer. Can you help with this?

Unfortunately, GVC is unable to offer garden installation services for remediation projects. It is a stipulation of the grant funding we receive.