Sabb_2001 (Read
Transcription
Sabb_2001 (Read
The Sabbathday Lake Demonstration Project A report by the Cumberland County Soil and Water Conservation District With funding provided by the U.S. Environmental Protection Agency and the Maine Department of Environmental Protection April 2001 1 Acknowledgments Thank you to the sponsors of this project and report: Maine Department of Environmental Protection U.S. Environmental Protection Agency [Section 319(h) of the Clean Water Act] Thank you to the members of the Demonstration Project Steering Committee: Norm Chamberlain Ellie Fellers Lori Fowler Abby Lumsden Gay Marks Brother Wayne Smith Thank you to the groups that provided tremendous in kind support for the project : USDA Natural Resources Conservation Service Sabbathday Lake Association Cormier Landscaping Town of Poland Public Works Department The Town of New Gloucester Town of New Gloucester Public Works Department Residents of Sabbathday Lake Cumberland County Soil & Water Conservation District staff that managed this project: Jeff Brinck, Project Manager Wendy Garland, Lakes Program Manager Tamara Lee Pinard, Project Manager Jeff Edelstein, District Engineer Cover photo by Ellie Fellers It is District policy that no person shall be subjected to discrimination on the grounds of race, color, national origin, sex, religion, disability, age, marital or familial status. 2 Introduction Sabbathday Lake is a wonderful natural resource. But the region is growing. Many seasonal camps have been converted to year round residences, and the prosperous economy has resulted in more travel to the area, more recreation on the lake, and more new residences within the watershed. Inevitably, with development and recreation comes polluted runoff (see inset below). When those pollutants - especially phosphorus - accumulate in a lake within a watershed, the result can be lower water quality, a less picturesque and enjoyable lake, poorer quality wildlife habitat, and lower property values. In 1996, the Cumberland County Soil and Water Conservation District (District) partnered with the Maine Department of Environmental Protection (DEP) and residents near Sabbathday Lake to survey the Sabbathday Lake Watershed to identify and prioritize existing sources of NPS polluted runoff. The DEP, District, and a team of 17 volunteers conducted surveys in the spring of 1996 to identify sites where NPS polluted runoff was harming Sabbathday Lake. In the “Sabbathday Lake Watershed Survey Project” report, 75 sites were prioritized in terms of their impact on the lake and their ability to be fixed. In 1998, the District received a grant from the DEP and the US Environmental Protection Agency (EPA) through the Federal Clean Water Act Section 319 to act on the results of the survey. The project staff formed a steering committee of local residents and began to plan and implement projects. The goal was to implement a variety of conservation projects at visible locations to educate residents about how they can participate in watershed protection. This report describes project objectives, challenges and successes. This report does not signal the time to sit back and breathe a sigh of relief. Maintaining the quality of Sabbathday Lake will take continual work. The District, DEP and project sponsors look forward to working with the residents and municipalities of New Gloucester and Poland to meet the challenge of keeping Sabbathday Lake a valuable resource in the future. Polluted Runoff: Referred to as “nonpoint source pollution” or NPS, includes road sand, soil, phosphorus, nitrogen, bacteria, debris, and other pollutants washed into lakes and streams by water from rainstorms and snow melt. 3 Figure 1. Sabbathday Lake Watershed* Key to Demonstration Projects Shown on Map 1 2 3 4 Outlet Road Ditch Stabilization Groleau Residence Drywell and Buffer Barefoot Beach Shoreline Stabilization, Buffer Planting, Boat Launch Repair Allen Road Road Stabilization, Buffer Planting 5 6 7 8 Sunset Shores Road Ditch Turnouts Allen Residence Terrace Reconstruction Pond Road Regrade and Ditch Turnouts Marston Road Stabilization * The red line represents the watershed boundary. The land area within the boundary drains to the lake. 4 Project Objectives The objectives of the project were to install conservation projects, provide technical assistance, and to educate the community and get them involved. Demonstration Projects: Funding was available to share construction costs of Best Management Practices (BMPs – see inset) to reduce polluted runoff into the lake. Sites were chosen based on their visibility, cost and the support of the landowners. The demonstration projects chosen were on two town roads, one commercial beach site, two camp roads and four private pieces of Best Management Practices or property. Each of these demonstration projects BMPs: Conservation measures are shown on a map in Figure 1, and selected that have been determined to be projects are described in detail later in this rethe most effective and practical port. means of preventing or reducing erosion and nonpoint source polTechnical Assistance: The project staff visited lution. the properties of more than 27 watershed residents to provide technical assistance on erosion control and conservation measures. After the visits, staff prepared property-specific recommendations for each resident. The New Gloucester Planning Board requested that the District provide technical assistance to each resident around the lake that applied for a building or land use permit. The District thanks those listed below in Table 1 for their interest in learning how to help protect Sabbathday Lake by controlling erosion on their property. District and DEP staff are available to provide further technical assistance in the future (contact information is provided on page 15). Residents are encouraged to contact the District and the DEP with questions regarding erosion problems. Table 1. Residents that received technical assistance through the project Residents of Marston Road Janet Lambert Bob Klotz Sandy & Lee Harper Ellie Fellers Ruth Faut Donald O’Malley Matt Johnson Dick Allen Dick Hildebrand Julie & William Bartlett The Shaker Society Roy & Eileen Young Tom Driscoll Rodney Bergeron Kay & Newton Swift Norm Groleau Bob & Cathy Thorpe Alan & Connie Bauer Steve Driscoll Fred & Betty Davis Melissa Thurston-True Cheryl Fortier Omer Morin Joanne & Mike Cloutier Tom & Sue Wilson Beth Steele 5 Community Involvement/Education: Education of the watershed residents was an important objective of the project. As a result, we promoted our project and involved people so that lessons learned would be transferred to their own property. For example, project staff attended Sabbathday Lake Association meetings and provided project updates. Press releases were sent, public access cable television stations were notified, and the media was invited to each event held through this project. Of all the community involvement efforts associated with the project, the most effective were the buffer workshops. Two workshops were held: one at Barefoot Beach and another on Allen Road. The workshops were the culmination of each of these demonstration projects (described in detail on page Volunteers stabilize an eroding foot trail 10 and page 9 of this report, respectively). The as part of the Barefoot Beach workshop. Barefoot Beach workshop was a fun and educational event for 20 participants. It resulted in about 50 plants in the ground, stone steps, and mulched walkways. A television news crew was present for the work, and articles were printed in local newspapers including the Lewiston Sun Journal. The Allen Road planting workshop drew 16 volunteers that planted sand cherry What you can do……. shrubs, native grasses and wildflowers. The Gray Monument covered the work• Use the demonstration projects shop with a story and a photo. as sources for ideas. Agreements were signed with landowners parFinally, a tour of the demonstration proticipating in the demonstration projects was held, during which residents visjects to ensure that the sites remain ited project sites and reviewed the conaccessible to people interested in struction processes for each project. Bill viewing the projects. Kiley, a local contractor, and Brother • Continue to get technical assisWayne Smith and Michelle Groleau, hosts tance from the District and the of two of the projects, were available to DEP. explain their respective projects. • Share this report with friends and neighbors with erosion control challenges. 6 Demonstration Projects The Groleau Property The Groleau residence is located on Outlet Road within 250 feet of the shore of Sabbathday Lake. Rain and snow falling on the roof of the house and their driveway combined with stormwater from the road to create a significant amount of runoff that carries phosphorus directly into the lake. The Groleaus partnered with the District to help protect the lake by reducing the amount of runoff leaving their property. Measures taken included: • • Installing a drywell to promote the infiltration of roof runoff Planting native vegetation in the yard and along the lake The Groleaus and Shaker Hill Nurseries Water leaves the outlet of the roof gutter downworked together to design and install the spout. The Groleaus had a drywell installed to native plant gardens, which replaced a sigallow this runoff to infiltrate into the ground. nificant portion of the lawn on their property. Rugosa rose was planted along the shore of the lake to expand the lake-side buffer. Because mulched gardens and buffers allow more infiltration than mowed lawns, the Groleaus reduced the amount of stormwater runoff entering Sabbathday Lake. What you can do…. Native plants historically grew near Sabbathday Lake and are adapted to the sandy, acidic soils. They include: • sand cherry • blueberry • rugosa rose • juniper • viburnum • wood fern • alder Roof runoff from the house travels through gutters, into the downspout, and through a pipe extension that conveys water under the driveway and into the newly installed drywell. The drywell was installed at the end of the existing pipe extension because the downspout on the house is near sidewalks, well pipes and electrical wires, which would have made excavation for the drywell hazardous. The drywell was installed by Rodney Bergeron, a local contracTotal cost of the drywell: $650.00* * The Groleau’s paid the entire cost of the gardens, while the grant picked up the cost of the installation of the drywell. 7 Sunset Shores Road The Town of New Gloucester’s Public Works Department led a demonstration project to address erosion along Sunset Shores Road. Every year, Sunset Shores had drainage problems that resulted in wash-boarding, potholes and rutting. The gravel on the road was eroding and transporting sediment and phosphorus into the lake. Project staff developed agreements with the landowners adjacent to the ditches to alleviate concerns of draining runoff and sediment onto their land, and the Town Public Works Department completed the construction work. The town also agreed to maintain the structures by removing the gravel sediment periodically. The structures used to control the erosion on Sunset Shores include: • • • A ditch turnout (below right) to drain runoff away from the road and into a stable buffer A level lip spreader (below left) that settles sediment and allows water to flow into a buffer as a sheet instead of concentrated flow Temporary mulching and permanent vegetation on the disturbed soils These structures cost roughly $850 in total. The Town of New Gloucester Public Works Department graciously provided the labor and materials to complete this project. What you can do…... • • • • • 8 Maintain a proper crown on your driveway. Install ditch turnouts into stable buffer areas. Clean out the turnouts when they get full of sand and debris. Mulch and seed bare soil areas with native grasses. Form a Road Association. Maintenance over time and sharing of expenses will reduce the need for large scale, expensive fixes in the future. Allen Road Allen Road is a private gravel camp road that is used by camp owners along the road and ice fishermen. Because of its heavy use throughout many seasons and the orientation of the road, runoff was creating road wash-outs and exposing roots of the large white pine trees on the property of Glenice Tufts. A partnership between the District, the Town of New Gloucester and Glenice Tufts resulted in the use of this area to demonstrate the following conservation measures: • An open-top culvert in the road • A ditch turnout • Terracing of a steep slope • Permanent mulching • Planting native trees, shrubs and grasses Dwarf sand cherries, donated by the USDA-NRCS, were chosen for planting because their spreading structure and mat-like root system holds soils in place, thereby reducing erosion. Cormier Landscaping installed the conservation measures at the site. Sixteen volunteers from the community helped plant the sand cherries, grasses and perennials. What you can do……. • • Total Cost of this Project: • Retaining Wall: Loam and Mulch: Labor: Plant material: Total: $350 200 1,000* 200* $1,750 • • Ensure that you have a good base of soil for planting and if you do not, add loam. Plant native grasses, perennials, trees and shrubs. Maintain a cover of mulch until the vegetation becomes established. Use retaining walls only in areas well above the high water line. Contact the town code enforcement office and DEP for permits before disturbing soil within 250 feet of the lake. * estimated because portions of these were donated. 9 Barefoot Beach Barefoot Beach is the only commercial facility on Sabbathday Lake and until recently was the site of some serious erosion challenges. Jeff and Sandra Parshall operate Barefoot Beach and Sandra’s Soft Serve and were eager to protect the quality of the lake and their investment. They partnered with the District to implement the following variety of conservation measures at their property: • • • • • Before Shoreline stabilization Planting of permanent vegetation Permanent mulching Boat launch stabilization Foot trail stabilization Jeff and Sandra Parshall did much of the work themselves, and volunteers were recruited to spread the loam, stabilize the foot trails, and plant the vegetation. Contractors were hired to spread the rip-rap and refurbish the concrete boat ramps. Fox-51 News and the Lewiston Sun Journal covered the volunteer effort. After Erosion (above) was stabilized by rip-rap, loam and mulch (below). Total Cost of this Project: Rip-rap/loam/mulch/stone: $2,500 Silt fence, other materials: 200 Boat ramp concrete: 2,500 Labor: 3,800* Plant material: 400 Total: $9,400 * estimated - most labor was donated. What you can do……. • • • • 10 Properly install a silt fence on construction sites to stop sediment from entering lake and then remove it when the area becomes stable. Place loam and at least 4” of mulch on gradual slopes, and then Plant native trees, shrubs, and grasses. Use properly maintained and designated boat launches. Outlet Road The western portion of Outlet Road passes the lake’s northern shore and is located within the Town of Poland. The ditch along the first half mile of Outlet Road near the Shaker Society property has been a perennial source of polluted runoff into a small brook that flows into the lake. Bud Jordan from the Town of Poland Public Works Department partnered with the District to fix the eroding ditch by installing the following conservation measures: • • • Planting permanent vegetation Temporary mulch Construction of a check dam • • • Proper ditch shaping Proper culvert sizing and placement Rock-lined aprons The Outlet Road ditch before construction is shown at left looking east. Notice the v-shaped and eroded bottom and slopes. A portion of the ditch after reshaping is shown at right looking west on Outlet Road. Notice the trapezoidshaped bottom, shallow slopes, and riprap lining. What Town Road Crews can do…. • • • • • • Construct ditches with flat bottoms instead of V-shaped bottoms. Ditch side slopes should be no steeper than 2:1 (run:rise) slope. Use angular rip-rap to line ditches with a pitch steeper than 5%. Install a settling structure before the ditch enters a stream floodplain. Seed all disturbed areas to limit erosion. Remove sediment from all settling basins regularly. 11 The Allen Residence Terracing using retaining walls is a common method of reducing the erosion on steep slopes. However, retaining walls deteriorate over time creating a risk of washouts and severe erosion. The retaining wall along the beach at the Allen residence on Shaker Road was in need of repair, especially where the walking path passed through a split in the wall. The most cost effective solution was to replace the wall and modify the design to stabilize the wall’s shoulders at the path’s entrance. The District partnered with Mr. Allen and Cormier Landscaping to reconstruct the wall. The wall, left, showed signs of considerable deterioration. Had the wall failed, tons of soil would have eroded into the lake and a couple of large trees would have fallen. The failing wall was replaced and shown in the photo on the right. “Deadmen” are structures (seen in the photo on the right protruding from the inside of the wall into the bank) that add stability and longevity to the wall. The entire wall cost about $5,000. Mr. Allen shared over half the cost of the project. Labor was also donated by Mr. Allen and his family. What you can do….. Following is a prioritized list of options for bank erosion control near water bodies: • Vegetation helps to buffer the lake, is beneficial to wildlife and needs little if any maintenance. • Riprap works well on steeper slopes, but should be over-seeded with grasses to provide habitat and to keep rocks and runoff cool for cold-water fish species. • Retaining walls should be used only if the site is excessively steep, or if a failing wall has trees grown in behind it that will likely fall if the wall is removed. In most cases, the DEP will not allow creation of a new wall within 25’ of high water. 12 Permits and Ordinances Reasonable laws and ordinances can protect us and the environment. The protection of Sabbathday Lake is ensured through the good will of residents around the lake, and through laws and ordinances created and enforced by the State and Town. But how do you know when laws apply to your plans and when they don’t? Soil disturbance and/or clearing of vegetation within 250 feet of the lake shore falls under the Shoreland Zoning Act and is administered by the Town through the Code Enforcement Officer and the Town Planning Board. This law requires that plans that will disturb soil and/or vegetation are reviewed by the Code -from Protecting Maine’s Natural Resources – Volume 1, Maine DEP, 1996. Enforcement Officer and Planning Board. Soil disturbance within 100 feet of the lake shore also falls under the Natural Resources Protection Act, which is administered by the Maine DEP. To ensure that permits for projects that will not result in significant disturbance are processed swiftly, the DEP has established a streamlined permit process called “Permit by Rule”. These one page forms (shown below) are simple to fill out and allow the DEP to quickly review the project. “The Natural Resources Protection Act seeks to establish reasonable regulation in order to assure responsible development that does not harm Maine’s precious natural systems.” The project partners encourage you to contact the DEP and the Town Code Enforcement Officer if you have any plans to construct or relocate a structure, clear vegetation, create a new path or driveway, stabilize a shoreline or otherwise disturb the soil on your property. Even if projects are planned with the intent of enhancing the environment — such as stabilizing a bank along the shore that may be eroding — contact the DEP and Town to be sure. See page 15 for contact information. The appropriate permits were obtained for each of the demonstration projects outlined in this report. This report should not be used as the sole source of information about necessary permits and ordinances relating to lakes, streams and other protected areas. It is the responsibility of the landowners to abide by State laws and municipal ordinances. 13 Reference Guide for Common Conservation Measures Open Top Culvert: Use this structure in a sloped gravel driveway or camp road that does not get plowed in the winter. Place it at a 30 degree angle to the road edge and point the outlet toward a stable buffer. Remove leaves and debris annually. Rubber Bar: Use this structure in a sloped gravel driveway or camp road. It can be plowed over only if the plow operator is aware of its presence and lifts the plow blade slightly. Place it at a 30 degree angle to the road edge and point the outlet toward a stable buffer. Infiltration Trenches: Use these structures along the edges of driveways, or under the drip line of a roof. Grade surrounding areas gently to encourage flow into the trench. A larger drainage area requires a deeper or wider infiltration trench. 14 Drywell: Use a drywell to collect runoff from roof gutter downspouts. Drywells can be covered with sod, or left exposed for easy access and cleanout. Drywells and infiltration trenches work best in sandy or gravelly soils. Publications and Resource List Androscoggin Valley SWCD and Lake & Watershed Resources Management Associates. 1998. The Buffer Handbook: A Guide to Creating Vegetated Buffers for Lakefront Properties. 20 pgs plus inserts and attachments. Cumberland County SWCD and Maine DEP. March, 1991. Maine Erosion and Sediment Control Handbook for Construction: Best Management Practices. 266 pgs. Kennebec County SWCD and Maine DEP. June, 2000. Camp Road Maintenance Manual: A Guide for Landowners. 54 pgs. Maine DEP. 1996. Protecting Maine’s Natural Resources – Volume 1. A Citizen’s Guide to the Natural Resources Protection Act (NRPA). DEPLW96-23. 35 pgs. Maine DEP. December, 1997. A Homeowner’s Guide to Environmental Laws Affecting Shorefront Property in Maine’s Organized Towns. DEPLW-38-B98. 28 pgs. Maine DEP. 1999. Maine Shoreland Zoning – A Handbook for Shoreland Owners. DEPLW1999-2. 34 pgs. University of Maine Cooperative Extension. Gardening to Conserve Maine’s Native Landscape: Plants to Use and to Avoid. Bulletin #2500. June, 1999. Folded leaflet. Maine Soil & Water Conservation District Offices Androscoggin Valley 753-9400 x 3 Knox/Lincoln Counties C. Aroostook County 764-4770 Oxford County S. Aroostook County 532-2087 Penobscot County St. John Valley 834-3311 Piscataquis County Cumberland County 839-7839 Somerset County Franklin County 778-4767 Waldo County Kennebec County 622-7847 x 3 Washington County York County 324-7015 273-2005 743-5789 947-6622 564-2321 474-8324 338-1964 x 2 255-3995 Maine Department of Environmental Protection Bureau of Land and Water Quality Southern Maine Regional Office State House Station 17 312 Canco Road Augusta, Maine 04333 Portland, Maine 04103 (207) 287-3901 (207) 822-6300 Towns Adjacent to Sabbathday Lake Town of New Gloucester 385 Intervale Road, PO Box 82 New Gloucester, Maine 04260 (207) 926-4126 Town of Poland 1231 Maine St., PO Box 38 Poland, Maine 04274-0038 (207) 998-2002 15 Cumberland County Soil & Water Conservation District 381 Main Street Suite 3 Gorham, ME 04038 207-839-7839 16