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Lake Munson: Past and Present

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The Lake receives stormwater runoff from 57% of Tallahassee's urban areas. ... accessible to the public, already teeming with water fowl, and later with fish. ... – PowerPoint PPT presentation

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Title: Lake Munson: Past and Present


1
Lake Munson Past and Present
  • Octavia Beasley
  • Andreas Jackson
  • Wendasha Jenkins
  • Jamil Jude
  • Whitney Maxey

2
HISTORY OF LAKE MUNSON
  • Lake Munson is a flow through system. The water
    in Lake Munson comes from many urbanized areas of
    Tallahassee.
  • The water flowing into Lake Munson is very poor
    quality urban storm water.
  • The Lake receives stormwater runoff from 57 of
    Tallahassees urban areas.
  • The Florida Department of Environmental
    Protection (FDEP) found that the urban stormwater
    runoff carried a pollutant load of 35,762 lbs/day
    total suspended particles, 1,558 lbs/day
    Biochemical Oxygen Demand, 274 lbs/day Nitrogen,
    156 lbs/day Phosphorus, 7.8 lbs/day Lead, and 2
    lbs/day Copper.
  • As early as 1705 it was indicated that Lake
    Munson may have once flowed into the Wakulla
    River.

3
  • Maps from 1840 suggest a cypress mill was located
    on the lake, making it the first historical
    reference to an impoundment. However, an oral
    tradition states that beaver dams have
    historically maintained the Lake as a natural
    impoundment.
  • 1950 - A permanent dam was built at the outfall
    of Lake Munson.
  • 1954 - Lake Munson was said to have excellent
    waterfowl hunting and good fishing.
  • At the same time some locals decided not to eat
    the fish because the lake had been receiving
    effluent from the Tallahassee Sewage Treatment
    Plant.
  • From 1934-1984 it was the receiving water body
    for Tallahassees municipal wastewater
    discharges.
  • 1982 - FDEP classified Lake Munson as
    hypereutrophic, and ranked it as the seventh most
    degraded lake in Florida.
  • 1984 - A spray field was constructed for
    Tallahassees municipal wastewater and
    substantially improved Lake Munsons water
    quality.

4
  • Eight Mile Pond and Ames Sink are the two
    sinkholes south of the lake, and they consume the
    overflow from Lake Munsons outflow under normal
    conditions.
  • Because eutrophication is high, there is a lot of
    aquatic algae that contributes to large diurnal
    fluctuations of dissolved oxygen, and the high
    values in which the dissolved oxygen is
    supersaturated is a sign that the vegetation is
    out of balance.

5
Present Day Lake Munson
6
What thrives and lives in Lake Munson?
  • The Lake has a history of frequent fish kills and
    infestation with invasive exotics, like Hydrilla
    verticillata.
  • It has always been a good place to hunt
    waterfowl.
  • Lake Munson still produces trophy bass, but not
    at as high a rate as it used to, along with other
    types of fish.
  • Willow trees can be found throughout the center
    of the lake.
  • An excess amount of aquatic algae and
    phytoplankton
  • Invasive exotic macrophytes such as invasive
    exotic snails, Pomacea canaliculata, that help
    suppress the phytoplankton and the already high
    values of chlorophyll in the lake.
  • High levels of nitrate, phosphate, and high
    concentration of ammonia
  • Its completely encircled by Pond Cypress trees,
    just as it has always been

7
Restoration Project
  • From 1934 to 1984, Lake Munson was the receiving
    water body for Tallahassee's municipal wastewater
    discharges. Recent tests show that Lake Munson
    still receives 57 of Tallahassee's urban areas
    storm water runoff.
  • The basic goal of the Lake Munson restoration
    project is to remove material from the lake
    bottom to improve the water quality, remove storm
    water runoff impacts on the tributary system and
    receiving waters, restore nearby habitats,
    provide recreation opportunities, and provide
    flood storage. The building of ditches leading to
    Lake Munson, the removal of a delta, and building
    a retention pond to divert the water in the
    ditches are the major components of the Lake
    Restoration Project.

8
Restoration
  • According to EPA, the restoration plan was
    comprised of many components.
  • Restoration Plan
  • 1. Construct sediment disposal site facilities
  • 2. Excavate the 15-acre delta at the inflow of
    the lake
  • 3. Restore Lake Henrietta and include stormwater
    best management practices (BMPs) to improve the
    "treatment train" going to Lake Munson and the
    Floridan Aquifer
  • 4. Hydraulically dredge the bottom sediments from
    the main body of the lake
  • 5. Take additional steps to improve fishery
    habitats, lake access, environmental education
    opportunities and recreation to enhance the
    facilities for the community
  • 6. Monitor the actual efficiency of pollutant
    removal by the BMPs implemented in the project.

9
  • The engineering firm of Camp Dresser and McKee
    designed the improvement project which consisted
    of six phases. 1. Sediment disposal site which is
    located at the Eisenhower clay pits. 2. Lake
    Henrietta restoration which was to provide peak
    flow attenuation and water quality treatment. 3.
    Munson Slough Stabilization which goal was to
    provide erosion control between Springhill Rd.
    and Lake Munson. 4. Excavation of the Delta in
    Lake Munson which would restore the channel
    inflow to a more natural state while removing
    trash and debris from the lake. 5. Hydraulic
    Dredging of Lake Munson/Fishery Enhancements and
    improve the recreational value of Lake Munson. 6.
    Monitoring of the slough hydro period as required
    by the USACOE.
  • So far about 13.3 million has been invested in
    the restoration project with an estimated 6
    million needed to complete it.

10
Humans tsk, tsk
  • The use of our water resources was long taken for
    granted as the United States and Florida
    developed. The pollution that resulted from using
    surface waters as dumping grounds for human and
    industrial waste become evident by the 1950s and
    1960s and led to many new federal and state laws.
  • Concerns about both water resource vulnerability
    and the long-term sustainability of our water
    resources have rapidly increased across the
    United States over the past few decades. Water
    resource vulnerability refers to the overall
    vulnerability of surface water and ground water.
    Vulnerability includes water quality issues, such
    as pollution, as well as water supply issues,
    such as aquifer recharge or overuse. The causes,
    which can vary greatly, may stem from human
    populations or natural systems.
  • Long-term sustainability means that enough water
    is available to support natural systems and human
    populations over time, and that the supply of
    water is naturally replenished. Sustainability
    can be affected in many ways. For example, once a
    water supply is contaminated, the contamination
    may be difficult or impossible to fix.

11
  • If the natural flow of water is disrupted (for
    example, if stormwater is channeled directly to
    rivers and lakes in a series of pipes or ditches
    rather than being allowed to flow freely over the
    surface of the land and replenish underground
    aquifers or fill wetlands), its potential
    benefits are lost
  • The Lake Munson drainage basin in the St. Marks
    Basin is an example of a human-induced short
    circuit. A network of drainage ditches carries
    two-thirds of Tallahassees highly polluted
    stormwater to Lake Munson. The lake then drains
    via Munson Slough and flows underground at Munson
    (Ames) Sink, ten miles north and upgradient of
    Wakulla Springs.
  • Other short circuits include interactions between
    surface water and ground water, ground water and
    surface water, surface water to surface water,
    and ground water to ground water. These
    interactions can be natural (for example,
    sinkholes), or human induced (for example,
    drainage canals).
  • Over half of Floridas aquifers are vulnerable to
    ground water contamination. In addition, because
    90 percent of the states drinking water comes
    from aquifers, the effects of any contamination
    are potentially serious.

12
  • In Florida, these vulnerabilities are often
    closely linked for example, underground aquifers
    and surface waters are connected in many areas,
    allowing polluted agricultural and urban
    stormwater to flow directly into drinking water
    supplies. 
  • Local and regional residents can influence
    groundwater vulnerability. The area closest to
    the withdrawal point is most vulnerable, while
    the area farthest away is the least vulnerable.
  • High phosphorus levels dropped to a fraction of
    their previous levels once sewage effluent was
    diverted from the lake in 1985.

13
Lake Munson
  • From a Political View

14
General Information
  • Lake Munson is located in the Southside of
    Tallahassee
  • Has been a topic of interest for the past 10
    years
  • Both County and City officials take interest in
    the lake

15
City Commissioners
  • Alfred Lawson
  • Richard Mitchell
  • Loranne Ausley
  • These people are on the restoration project for
    Lake Munson.

16
Description of Project
  • Removal and disposal and approximately 1,000,000
    cubic yards of accumulated nutrient rich bottom
    sediments from Lake Munson coupled with ancillary
    habitat restoration.
  • This will bring about improved surface quality
    Increased groundwater protection Fisheries
    enhancement Increased recreation and fishing
    access.

17
Cost of Project
  • Total cost 16,500,000
  • This is a local fund so the cash amount is
    11,200,00
  • State requested 6,000,000
  • Will not be funded by the state
  • Was not in an Agencys Budget request.
  • Was not included in the Governors Recommended
    Budget

18
Public Awareness
  • This project was presented to a public body by
    the Leon County Board of Commissioners on
    12/12/00.

19
The County Officials
  • Bob Rackleff
  • Serving second term
  • First elected in 1998
  • Chair of the Local Transportation Disadvantaged
    Board for 4 years
  • Dan Winchester
  • Serving second term
  • First elected in 1998
  • Primary focus is District 3

20
My Letter to the Officials
  • Hello.  My name is Jamil Jude.  I am a senior
    student at James S. Rickards High school.  I am a
    member of the IB program at Rickards.  My purpose
    for writing this email to you is to ask your
    specific stance on an important issue.  As a
    member of the IB program, I must complete a Group
    4 project in my laboratory science class.  This
    year, our class has decided to use Lake Munson as
    our target site for our project 

21
My Letter (Contd.)
  • I chose to focus not on the specific
    environmental factors about the lake as far as
    pollution and the animals that live in the area,
    but more on the politics the concern the area.  I
    know that Lake Munson has been a "hot topic" in
    the last few years over how we deal with the
    lake, especially before the restoration process
    took place.  I've contacted you to ask for help
    in trying to understand the politics concerning
    the lake a little bit more.  I would greatly
    appreciate your help. 

22
My Letter (Contd.)
  • If email isn't the most effective way of
    communication, I can be reached at either my cell
    (850-443-6039), my house (850-422-9659) or at
    school (850-488-1783).  Again, thank you for your
    help. Jamil Jude Class of 2005

23
Commissioner Rackleff
  • Dear Jamil, I'm flattered and pleased that you
    asked for my thoughts about Lake Munson, since
    that lake has been a special concern of mine ever
    since my first boat trip on it five years ago.  I
    was last on it by kayak about a year ago (when my
    wife got up close and personal with a gator!),
    and still find it one four most outstanding water
    bodies. beneficiary of that project. 

24
Rackleff
  • However, I don't think of it as a "hot topic"
    because both city and county commissioners
    strongly agree that we have to improve the lake's
    water quality.  Our commitment to the Capital
    Cascades Greenway project of over100 million in
    Blueprint 2000 funds speaks clearly to that
    agreement.  Lake Munson will be the greatest The
    numerous storm water ponds and other improvements
    in the greenway will help filter out most of the
    pollutants coming from the city. 

25
Rackleff
  • Once those upstream improvements are underway,
    the county also plans to dredge much of the
    accumulated silt and noxious water weeds from
    Lake Munson to help it sustain a healthy
    ecosystem. The county has also purchased much of
    Lake Munson's shoreline (we already built a small
    county park at its southeast end) to prevent
    damaging development, to create trails around it,
    and to preserve the magnificent cypress trees
    that ring the lake. 

26
Rackleff
  • We can all look forward to this future.  Lake
    Munson has every opportunity to become a
    beautiful, urban lake accessible to the public,
    already teeming with water fowl, and later with
    fish.  I encourage you to visit it and imagine as
    I do a bright future for this unique lake. Please
    feel free to call me at 222-9789 if you have any
    questions. 
  • Best wishes, Bob Rackleff Leon County
    Commissioner

27
Commissioner Winchester
  • Dear Jamil,
  • After reviewing your questions and getting the
    feedback from our expert in our Public Works
    Engineering Department, I give you the following
  • 1.  Question  What is your stance on the
    specific projects being done on the lake?  
  •     Answer   The projects that have been done,
    are being done, and will be done in the future
    are all very worthy and have my full support.

28
Winchester
  • They are all important to restore Lake Munson to
    a healthy state. The specific projects are 
    construction of storm water treatment at Lake
    Henrietta, removal of the sediment and trash
    delta that has accumulated in the entrance to
    Lake Munson.  The City has also diverted its
    domestic wastewater from dumping into Munson
    Slough and then into Lake Munson. This wastewater
    has been diverted to the Tram Road spray field
    since the 1980s. 

29
Winchester
  • Several other projects that are proceeding
    upstream from Lake Munson will further improve
    the lake's condition, but are less visible to the
    public eye. These include the stabilization of
    the stream banks and the enforcement of sediment
    and erosion control measures for new construction
    projects. 
  • 2.  Question    What can be done to improve the
    lake?  

30
Winchester
  • Answer Lake Munson has accumulated great amounts
    of nutrient-rich sediment over the course of
    Tallahassee's history.  This sediment must be
    removed for several reasonsa.  improve the
    water column depth to buffer storm flows and
    weather conditionsb.  remove nutrients recycling
    in the water column reducing available oxygen for
    aquatic life

31
Winchester
  • c.  remove the seedbed for many invasive and
    exotic plantsd.  expose surface materials for
    fish nurseries
  • 3.  Question  Why did it take so long for things
    to be done on the lake? 
  •      Answer    Unfortunately, the high nutrient
    levels and the organic content of the sediments
    make it technically challenging to remove them
    from the lake bed and find a suitable disposal
    location to contain them. 

32
Winchester
  • 4.  Question   Does the location of the lake
    affect how the clean up is being handled?
  •  Answer      The lake's location does affect its
    condition, given that Lake Munson has received
    the runoff from development since the 1800's. 
    (Runoff to Munson flows from as far away as north
    of Tharpe Street.)  Ironically, Lake Munson was a
    summer retreat in that era. 

33
Winchester
  • A second consideration is that the Apalachicola
    National Forest lies west of the lake, limiting
    the private ownership (which tends to spur
    restoration and protection efforts.)
  •   5.  Question     Anything else you can add for
    my report? 
  •  Answer      Lake Munson is small but receives
    very high storm flows.  This greatly hinders the
    ability to work within the lake bottom. 

34
Winchester
  • We are also looking at the impacts of the storm
    water discharged to the Floridian Aquifer at Ames
    Sink, the receiving sinkhole south of Oak Ridge
    Road.  The researchers studying Wakulla Springs
    have linked Ames Sink to the Springs, raising the
    stakes on resolving this long-standing community
    issue.
  •   Thank you for your interest in local
    environmental issues.

35
Winchester
  • If you need more information on this issue,
    please give Ms. Theresa Heiker a call at 488-8003
    or email her at theresah_at_leoncountyfl.gov.  She
    is the source of most of this information and has
    taken the lead on restoring the lake as long as
    she has been with Leon County.

36
Winchester
  • Best of luck in your education.  You seem to have
    a good start on it!
  • Sincerely,
  • Dan
  • Build a Future, Be a Mentor 
  • Dan Winchester Leon County Board of County
    Commissioners850/487-1157

37
Conclusion
  • Lake Munson is a very important issue in
    politics. Most officials believe that the
    restoration and improvement of not only this
    lake, but all lakes are very important. The
    Commission is making a considerable attempt to
    try to improve conditions. In time, we will
    reach a level where our environmental protection
    will be at a suitable level.
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