We have all watched the algae recently overtake our wonderful lakes. The
Lake Arrowhead Lakes Committee is tackling the problem with a new lake
management firm and program, but we can’t succeed without your help. Those
large algae blooms are an indication that there is too much of the nutrient
phosphorus in the lake waters. Our goal is to get rid of the algae blooms, and
encourage a healthy lake ecosystem with native lakeshore and aquatic plants
instead.
WHAT CAN YOU DO?
- Use phosphate-free fertilizer (mandated in Denville and
Mountain Lakes) or, even better, don't use any fertilizer. Just one lb.
of phosphorus produces 500 lbs. of algae!!!
How can you tell?
Fertilizer bags have three numbers on them, for the percentage of nitrogen,
phosphorus and potassium, respectively. A middle ZERO (0) means it’s
phosphorus-free. A licensed lawn care service should be following both Mountain
Lakes and Denville ordinances and using phosphorus-free fertilizer - but ask!
- Don’t use any fertilizer within 10’ of the lakes - as also mandated
in Denville’s ordinance.
- Minimize the use of broad-leafed herbicides (like Round-up) and
pesticides, which end up in the lake and kill the healthy lake plants and
animals. Better yet, don’t use them at all.
- Aggressively manage your leaves and yard waste: rake as soon as they
fall so the run-off from the decomposing leaves can’t feed the algae. If you
live on the lake, trim back branches hanging over the water. The leaves sink to
the bottom and decompose, which makes the lake shallower and warmer, and adds
nutrients, all of which accelerate algae growth.
- Clean up after your pets - and geese - those droppings also feed the
algae.
- Plant native trees and shrubs instead of lawns. Runoff from lawns
carries 8 times more phosphorus into the lake than runoff from wooded areas.
Less mowing too!! Why native? They are hardy, spread fast and don’t require
fertilizer or pesticides. See http://www.npsnj.org/index.htm.
- If you live on the lake, plant a buffer zone of native trees, shrubs,
grasses and wildflowers between your lawn and the lake to filter the
polluted/fertilizer run-off. Encourage native water plants along your shoreline
to help filter polluted runoff, and provide important habitat for turtles, fish
and frogs. The geese will be discouraged from your lawn, too! What's a buffer
zone? See http://lakewhatcom.wsu.edu/gardenkit/INDEX.HTML to get
started.
- Build a rain garden with native plants and wildflowers to absorb
runoff before it gets to the lakes. What’s a rain garden? See http://www.npsnj.org/rain_garden_home.htm
- Minimize paved driveways and walkways, which can’t absorb run-off.
WHY YOU?
You live in the Lake Arrowhead watershed, so everything that is put or
left on your property (lawn/driveway) eventually gets washed into the
lakes. The quality of our lakes is a reflection of how well we all take
care of our properties, and keeping the lakes beautiful and ecologically healthy
will result in higher property values for all homeowners in the watershed.
Visitour our Rsource Center for additional information on watershed area management
practices that you may want to review. The information packets will
describe: how to cultivate your native plant rain garden and/or your lakeside
buffer zone, if you have lakefront property; what our newly hired lake
management company is doing: and the Lakes Committee's nutrient mitigation and
testing activities.
If you have any questions, please feel free to give Lake Chairman or any Lake
Committee member a call! |