Title: Presumpscot River Stakeholders Plan:
1Presumpscot River Stakeholders Plan The Future
of a Changing River Prepared by The Presumpscot
River Plan Steering Committee With Funding and
Assistance from Casco Bay Estuary Project and
EPA Region 1
2Intro Background
- Casco Bay Estuary Project for Presumpscott River
initiated in the Spring of 2000 - Largest freshwater resource to Casco Bay
- Presumpscot was the site of Maines first pulp
mill, first hydroelectric project, only
significant canal and largest gunpowder mill, no
other river in Maine has had virtually all its
hydraulic head captured behind dams - Impact from dams on fisheries has been a concern
since the 1700s, by 1950s the condition of the
river reached its all time low, treatment plants
reduced pollutant discharges following Clean
Water Act but non-point sources of pollution
increased - Interest started in 1992 when Maine Department of
Inland Fisheries successfully reestablished a
trout and salmon fishery just below Sebago Lake
and after plans for the removal of Smelt Hill Dam
and improvements in water quality from cessation
of SAPPI Fine Papers pulp mill. Development
pressure increased after removal of the pulp mill
since the stench and unattractiveness of living
near a pulp mill was also removed. - Originates at Sebago Lake Maines second largest
lake, supplies greater Portland area with water,
originally the river was a rushing river with
many falls and rapids, abundant fish life, now it
is slow moving and does not support as much
wildlife - Focus on Presumpscot River and adjacent river
corridor lands and some tributaries, does not
address Sebago Lake levels
3Sebago Lake
27 miles long
Casco Bay
4Deepest lake in New England, one of the cleanest
in the state
Removed in 2002
5Problems
- Clearing of land and draining or filling wetlands
for agriculture 16 of the land is farmland - Timber harvesting for fuel wood, lumber,
shipbuilding, pulp and paper - Extraction of sand and gravel
- Development of settlements
- Construction of roads, canals, railroads
- Industrial development, dams for power
- Use by industries and municipitalities for waste
disposal
6Impacts to Water Resources
- 8 dams fragmented habitat, fast flowing water
converted to impoundments, anadromous fish
blocked - 5 waste water discharges reduce water quality
- 31 of lower watershed is now developed
- 16 of lower watershed is agricultural
- Flow regimes altered
7Changes in Water Quality
- Basin was originally forested, original water
quality was very similar to Sebago Lake, its
source - In 2001, Portland Water Districts draft of the
Lake report noted that Lake Sebago has
outstanding water quality - Impacts of waste discharges, watershed
development, and damming include - Increased TSS, increased dissolved solids,
lowered DO, increased bacteria levels, shift to
pollution-tolerant organisms, elevated
temperature - Below Westbrook, 60 chance of meeting Class B
for WQS for aquatic life
8Changes in Aquatic Habitat
- Increased temperature from development and
slowing of water, switch from native cold water
species (trout) to warm non-native species (bass) - Sedimentation aquatic community shifts to
organisms more tolerant of turbid water, overall
abundance of organisms decreases
9Put and take salmon and trout fishery
The rest is only suitable for bass and panfish
10Also impacts on wetlands, terrestrial resources,
endangered species and estuarine habitat
- Reduction in diversity and productivity or
floodplain from less frequent flooding - Loss of wetlands from draining
- Fragmentation of wildlife travel corridors,
reduction of wildlife populations - Loss of habitat for endangered species
11The Steering Committee
- Presumpscot River Management Plan Steering
Committee composed of federal, state, and local
government agencies, businesses, conservation
organizations and other interested groups - Goal to work cooperatively to develop a plan
for the future of the river, and to develop
recommendations that work for all interests - Purposes
- 1. to develop a comprehensive and unified plan
with management objectives to guide future
actions and decision that impact the river - 2. to identify opportunities for supporting
continued improvements to the health of the river
and its tributaries, and for capitalizing in the
potential of a healthy river ecosystem for
providing a diversity if public benefits,
including recreational, educational and economic
benefits in balance with the benefits of
renewable hydropower energy
12Focus Areas
- Cumulative Impacts to the River
- Fisheries Conditions and Opportunities
- Open Space Conditions and Opportunities
- Steering Committee worked for 2 years to develop
information and proposed objectives for these
focus areas
13Cumulative Impacts to Environmental Conditions on
the Presumpscot River and its Shorelands Options
for addressing Cumulative Impacts
14Options for addressing cumulative impacts
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24Protecting and Enhancing Open Space Along the
Presumpscot River
- Open space is what Maine has going for it!
Important to the Maine way of life. - Presumpscot is in a part of Maine that is losing
open space at a rapid rate - Protecting open space is critical for
- Fish and aquatic life. Riparian open space
filter runoff from the land, protects waters from
sedimentation, maintains cool water temperatures,
and contributes organic matter to the aquatic
food base - Wildlife Riparian open space provides habitat
used by 80 of Maines terrestrial vertebrate
species at some time during their lifestyle
25Wildlife and Fish Habitat Values
- Well vegetated open space corridors along river
or stream have special value as wildlife habitat - A unique edge habitat
- Importance to aquatic habitats
- Importance to birds
- Dear yards
- 80 if Maines terrestrial vertebrate wildlife
species use riparian areas to meet their habitat
needs at some point in their life - Coalition of planning and conservation
organizations Maine Audobon Society, Maine
Department of Conservation, Maine Department of
Inland Fisheries and Wildlife, Maine State
Planning Office, U.S. Fish and Wildlife Service,
Wells National Estuarine Research Office, Maine
Coastal Program, USGS, Southern Maine Regional
Planning Commission, and The Nature Conservancy
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27Maine already has a lot of open space a rare
opportunity for preservation
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29Open Space for Recreation
- Boating, canoeing, kayaking
- Swimming
- Fishing
- Hunting
- Wildlife observation and bird watching
- Walking
- Bicycling
- Skiing and snowshoeing
- Historical study
- Educational activities
- Snowmobiling
- Enjoying the peace and quiet!
- Communing with nature
- Spiritual renewal!!
30Methods to Preserve Open Space
31Methods to preserve open space
32Methods to preserve open space
33Recommendations and Strategies identified by
steering committee
34Visions for the Future
- As far at Cumberland Mills Dam could supports
runs of 13,000 shad, 78,000 blueback herring, 20
to 100 Atlantic Salmon and up to 20,000 alewives - Most of the area remains undeveloped, extensive
opportunities to preserve open space, time is
limited as development pressure is increasing