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                  <text>C O L O R A D O PA R K S &amp; W I L D L I F E

Boater’s Guide to
Aquatic Nuisance
Species (ANS)
Inspections

cpw.state.co.us

�Why Inspect Boats?
“An ounce of prevention is worth a pound of cure.”
—Benjamin Franklin

PHOTO BY MICHIGAN SEA GRANT

Preventing the introduction and spread of Aquatic Nuisance
Species (ANS) is critical to protect water resources! ANS are a
significant and rapidly growing threat to Colorado’s water
supply and to boating and fishing recreation. ANS are invasive
animals, plants, and disease-causing pathogens that are “out
of place” in Colorado’s reservoirs, lakes, rivers, streams, and
wetlands. They are introduced accidentally or intentionally
outside of their native range. Because they are not native to
Colorado habitats, they have no natural competitors and
predators. Without these checks and balances, the invaders are
able to reproduce rapidly and out-compete native species. Once
introduced, most invasive species cannot be eradicated and cost
billions of dollars to manage.
Because ANS are primarily spread by recreational boating and
angling, Colorado has implemented a large-scale watercraftinspection program to contain existing ANS and prevent the
introduction of others.

When does my boat need to be inspected?
You should inspect your own boat between every use and
make sure it is clean, drained, and dry. The State of Colorado
REQUIRES your boat to be professionally inspected if:
• The boat has been in any water body that is positive or
suspect for ANS.
• The boat has been in any water body outside of Colorado.
• The boat will be entering any water body where inspections
are required.

�PHOTO BY 100th Meridian

PHOTO BY BRAD HENLEY

Where are watercraft
inspection and
decontamination stations
located?
Please check the Colorado Parks
and Wildlife web site or call ahead
for important details, including
hours of operation, ramp closures,
fees for access or services, and
reservoir-specific boating policies:
http://cpw.state.co.us

�Which ANS Are We Most
Concerned About?

QUAGGA PHOTO BY
U.S. GEOLOGICAL SURVEY

Zebra and Quagga Mussels
Zebra and quagga mussels grow and
reproduce quickly resulting in
significant economic, ecological
and recreation impacts. Boating
and fishing in infested waters is
severely impaired. Invasive mussels
can encrust engines and cause costly
damage to watercraft. They reproduce
quickly and can litter shorelines
and beaches with sharp shells.
They attach to most underwater
structures, clog water supply pipes
ZeBrA Photo By
lAuren livo AnD
and infrastructure. They make it very
steve wilCoX
difficult and expensive to store and
supply water for municipal, industrial
and agricultural use. They completely
alter the ecosystem by encrusting
and smothering native species. In addition, they are filter feeders
and eat most of the food at the bottom of the food chain, leaving
little or nothing for native aquatic species. They also severely
degrade water quality. They are transported to uninfested waters
on trailered watercraft, and in bait buckets, live wells, bilge water,
anchors, ropes, engines/motors, gear, and equipment.
New Zealand Mudsnail
New Zealand mudsnails
(NZMS) compete with native
invertebrates—native mussels,
mayflies, caddisflies, and other
aquatic insects—for space and
food. NZMS reduce these prey
sources for fish and are not a
good food source themselves.
Their hard shell allows them
to pass through a fish gut unharmed. Fish tend to be smaller in
size and weight in infested waters. NZMS are females that clone
themselves, so it only takes one to start a new infestation. NZMS
are carried to uninfested waters on fishing gear. They can survive
up to 50 days on a damp surface and
several days on a dry surface.
Eurasian Watermilfoil
Eurasian watermilfoil (EWM) is an
aquatic noxious weed that forms dense
mats which restrict swimming, fishing,
and boating. The mats shade and choke
out native aquatic plants that are needed
by aquatic fish and animals for shelter,

�Waterflea
Non-native invasive waterfleas are zooplankton aquatic
crustaceans. Waterfleas do not live outside the water, and do not
bite or harm people or pets. They outcompete native juvenile
fish for food, causing low survival rates.
They are unpalatable to juvenile fish due Waterflea
(Daphnia lumholtzi)
to the sharp helmet, spines and barbs.
They can avoid predation by larger fish
by retreating to deeper waters
during the day and ascending at
night. Waterflea eggs can resist
drying and freezing. Their long
spines can cause them to become
entangled on fishing lines and can
clog eyelets of fishing rods.
Illustration BY
Michigan Department
of Environmental Quality

PHOTO BY JEFF GUNDERSON, MINNESOTA SEA GRANT

Rusty Crayfish
Rusty crayfish eat small fish,
insects, and fish eggs. They also
eat aquatic vegetation, damaging
underwater habitat that is
important for fish spawning, cover,
and food. They are aggressive and
displace native crayfish.
They have been introduced to
uninfested water by anglers who
use the crayfish as bait and throw
unused bait into the water or
illegally stock them as a prey base
for fish.

PHOTO by PHIL MYERS, MUSEUM OF ZOOLOGY, UNIVERSITY OF MICHIGAN

habitat and food. The decaying plants foul beaches and decrease
oxygen levels in the water, destroying habitat and food needed by
fish and birds. The mats slow the flow of water in ditches, rivers,
and streams and create ideal mosquito habitat. EWM clogs water
intakes and alters water chemistry changing the taste and smell
of drinking water. EWM reproduces by seeds, fragmentation
and winter buds. Any plant fragment can start a new infestation.

�Go Green!
Boat Inspection Seals
Explained
Green Seals
Green seals can save you time and help
you get on the water fast! Seals are free
to boaters and are available at the
inspection station when you exit a lake
or reservoir. Seals provide information
to the inspector that reduces your
time waiting in inspection lines. Some
inspection stations even have an express
lane for green sealed boats.
Boat inspection seals and seal receipts
together are your proof of prior inspection.
The seal and receipt provide
information about the last
water your boat was at and the
type of inspection performed
there. Boat seals temporarily
attach the boat to the trailer
so that the inspector knows the
boat has not launched since its last
inspection. Green seals are used by all
jurisdictions in Colorado.
If you have a green seal, you must still stop at the
inspection station to have the seal and receipt verified. In
order for the seal to be valid, it must have a fully filled out receipt
with a matching serial number. You will quickly be granted
access if you are returning to the same location or if your boat
has been out of the water for more than 30 days. If you are not
returning to the same location or you have not been out of the
water for more than 30 days, the inspector may give your boat a
quick check to ensure it is clean and dry. If the boat is not clean
and dry, you will get re-inspected. Keep your boat clean and dry
and get on the water fast!
Boats are given green seals following
an inspection or decontamination
upon exiting a lake or reservoir

ILLUSTRATIONS BY COLORADO STATE PARKS

�with an inspection station,
by request at the CPW office
located at 6060 Broadway in
Denver, or one of the many
marinas or marine dealers
certified to do inspections.
If one is not offered to you
when you leave the lake or
reservoir, be sure to ask for it!
What do white and blue
receipts mean?
White paper receipts are
given at negative waters with
no aquatic nuisance species.
If you have a valid seal with
a white receipt, your next
launch will be expedited and
decontamination will not be
required.
Blue paper receipts are from
a positive water in which
an ANS has been detected.
If you have a blue receipt
from a positive water and
are entering a water that is
negative for that particular
ANS, your boat will be
quickly re-inspected to ensure it is clean, drained and dry.
If it is not clean, drained and dry, it will be decontaminated to
prevent the introduction of ANS into negative waters. Keep in
mind that ballast tanks, inboard engines and inboard/outboard
engines can not be fully drained. Therefore, they will require
decontamination when moving from a positive water to a
negative water within 30 days, or if the boat does not have a
seal and receipt proving the boat was last in a negative water.
Boats moving from positive waters with blue receipts to negative
waters will most likely be decontaminated.
State of Colorado

INSPECTION AND DECONTAMINATION SEAL RECEIPT
For use when applying green seals to boats at Negative Prevention locations.
Provide original to watercraft owner (white) and keep carbon copy (yellow).

WID Location: _________________________________________________________________
Date: _________________________________

Time: _______________________________

Inspector’s ID #: _______________________________________________________________
Vessel Registration (CL #): _______________________________________________________
Trailer Plate #: __________________________

Seal Serial #: __________________________

State of Colorado

INSPECTION AND DECONTAMINATION SEAL RECEIPT
For use when applying green seals to boats at Other ANS Positive Containment waters.
Provide original to watercraft owner (blue) and keep carbon copy (yellow).
This receipt valid for State Parks preinspection only at the same location where it was issued.
WID Location: _________________________________________________________________
Date: _________________________________

Time: _______________________________

Inspector’s ID #: _______________________________________________________________
Vessel Registration (CL #): _______________________________________________________
Trailer Plate #: __________________________

q Waterflea

Seal Serial #: __________________________

q EWM

q NZMS

PROCEDURES PERFORMED (Every line must be checked to be valid)
Exit (HEAD) Inspection:
q Performed or q Not Performed
q Performed or q Not Performed
Exit High Risk Inspection:
q Performed or q Not Performed
Standing Water Decontamination:
q Performed or q Not Performed
Full Decontamination:
q Performed or q Not Performed
Plant Decontamination:
q Performed or q Not Performed
Bait Decontamination:

PROCEDURES PERFORMED (Every line must be checked to be valid)
q Performed or q Not Performed
Exit (HEAD) Inspection:
q Performed or q Not Performed
Exit High Risk Inspection:
q Performed or q Not Performed
Standing Water Decontamination:
q Performed or q Not Performed
Full Decontamination:
q Performed or q Not Performed
Plant Decontamination:
q Performed or q Not Performed
Bait Decontamination:

HOW TO TREAT A BOAT WITH A GREEN SEAL
Always ask about live aquatic bait and follow bait protocol. Cut off seal and let boat launch if
one of the following are true:
NOTES:
1.) Boat is returning to the same location; or
_____________________________
2.) Boat has been out of the water for more
than 30 days; or
_____________________________
3.) Boat has been decontaminated; or
_____________________________
4.) Boat is clean and fully drained.
_____________________________
If not, perform an inspection prior to launch.

HOW TO TREAT A BOAT WITH A GREEN SEAL FROM A CONTAINMENT WATER
Always ask about live aquatic bait and follow bait protocol. Cut off seal and let boat launch if one
of the following are true:
NOTES:
1.) Boat is returning to the same location; or
_________________________________
2.) Boat has been out of the water for more
_________________________________
than 30 days; or
3.) Boat has been decontaminated.
_________________________________
If not, perform an inspection to check for
_________________________________
standing water.
• If there is no standing water and the boat is clean and dried, allow launch.
• If any standing water is found, a standing water decontamination is required before allowing launch.

CLEAN, DRAINED, AND DRY BOATS GET ON THE WATER FAST!
Distribution:
1 - 3/2015 – 50,000

White—Owner/Operator

Yellow—Inspection Location
15-EB3-3/23195-15

CLEAN, DRAINED, AND DRY BOATS GET ON THE WATER FAST!
Distribution:
2 - 3/2015 – 100,000

Blue—Owner/Operator

Yellow—Inspection Location
EB3-3-15/23204-15

�Tips for a Speedy Boat Inspection

The better prepared you and your boat are for an inspection,
the faster it will go!
What can you do to help make the entrance inspection
go faster at the ramp?
• Have a green seal receipt ready to present to the inspector.
• Make sure the bilge plug is removed and available to be
replaced at the end of the inspection.
• Remove any tarps and straps prior to entering the
inspection site.
• At the inspection site, turn off the vehicle, set the parking
brake, get out of the vehicle and assist the inspector with the
inspection.
• Open all compartment hatches including but not limited to:
live/bait wells, bilge areas, anchor compartments, equipment
compartments and any other compartments that hold items
that have come into contact with the water body.
• Have the battery switch turned on so that the engine can be
lowered or pumps can be activated.
• Have the anchor and
ropes out of their
compartment for
inspection.
• If using live aquatic
bait, please have
the bait receipt out
and available for the
inspector.
• Clean, Drain, and
Dry.

�What can a boater do to help make the exit inspection
go faster at the ramp?
• At the inspection site, turn off the vehicle, set the parking
brake, get out of the vehicle and assist the inspector with
the inspection.
• Remove the bilge plug.
• Lower the motor.
• Open/drain all compartments including but not limited to:
live/bait wells, bilge areas, anchor compartments,
equipment compartments and any other compartments
that hold items that have come into contact with the
water body.
• Activate all pumps (bilge, live well, ballast tank, etc.) to
insure drainage.
• Have the anchor and ropes out of their compartment
for inspection.
• Place unused bait in the trash.
• Get a green seal and receipt to make the next inspection
go faster.
• Remember to dry all equipment at
home prior to the next launch.
• Clean, Drain, and Dry.

�What Happens During a Boat
Decontamination?
Boats are decontaminated using hot water 120º–140º Fahrenheit
to kill mussels and other ANS. The exterior of the boat and
trailer are sprayed with a high pressure rinse to remove the
mussels or ANS from the boat. The interior compartments and
the engine/motor are flushed or rinsed with low pressure hot
water.

When Will Decontamination
Be Required?
Most inspections will not result in a decontamination being
performed. However, these circumstances may result in a
decontamination being performed:
• If zebra or quagga mussels are
found attached to a watercraft.
• If any other ANS is positively
identified or suspected on a
watercraft.
• If suspect unidentifiable
bumps are detected on a
watercraft.
• If the watercraft is from a
positive water and has any
water in it.

�PHOTO BY BRAD HENLEY

• Ballast tanks,
inboard engines
and inboard/
outboard engines
can not be fully
drained and require
decontamination
when moving from
a positive water
(blue receipt) to
a negative water
(white receipt).
These systems will
always require
decontamination if
the boat has no seal
and receipt.
• If the watercraft is
unable to be fully drained.
• If the watercraft or trailer has plants attached that can’t be
removed by hand.
• If the watercraft has live aquatic bait without a valid receipt.

�PHOTO BY CHRIS EVANS, RIVER TO RIVER CWMA

Zebra and quagga mussels
start off life as microscopic,
free-floating organisms
that are too small to see
with the naked eye. They
can be transported to new
locations in standing water
in live wells, bilge areas,
and other compartments
on boats. Mussels aren’t the
only unseen invasive species.
Others, such as the spiny
waterflea (pictured right),
are also microscopic and
transported in the water
from the lake or reservoir.
Small plant fragments that
get sucked up in water onto
the boat could start a new
infestation in another lake if
flushed out there. To prevent
the movement of invasive
species through standing
water on boats, the lake or
reservoir water must be
fully drained out of the boat
in between each use. If the
standing water cannot be fully drained, the boat may need to be
decontaminated.

PHOTO BY JEFF GUNDERSON, MINNESOTA SEA GRANT

What’s the
Big Deal with
Standing
Water?

�What’s the Big Deal about Bait?

Anglers using live aquatic bait purchased from an authorized
Colorado dealer should keep their receipt with it to show the
inspector. If the receipt is less than 7 days old, and the species
listed on the receipt matches what is in the container, and the
bait is allowed at that site, the angler will be permitted to use
that bait east of the Continental Divide. If there is no receipt, the
live bait will not be permitted for use and will be disposed of in
the trash.
Use of live fish remains
prohibited above 7,000
feet on the east slope
and in all areas west of
the Continental Divide,
except Navajo Reservoir.
All crayfish caught
west of the Continental
Divide must now be
immediately killed by
removing the head from
the thorax and taken
into possession, or
immediately returned
to the water from which
they were taken. The
same restriction applies
to Sanchez Reservoir on
the East Slope due to the
invasive rusty crayfish.

PHOTO by PHIL MYERS, MUSEUM OF ZOOLOGY, UNIVERSITY OF MICHIGAN

PHOTO by John Woodling

Live aquatic bait can harbor diseases that can be spread when
they are transported. For this reason, the transport of live baitfish
is now prohibited. The bait itself may also be invasive. Live
baitfish must be used in the same body of water from which
they are taken, except for those fish captured within the Lower
Arkansas River Basin (below Pueblo), which may be transported
and used in other counties within that same area.

�Protect our Rivers
and Streams from
Invasive Species
How Anglers Can Help

new zealand MUDSNAIL PHOTO ( RIGHT) BY MICHIGAN DEPARTMENT OF ENVIRONMENTAL QUALITY

�Four Options to Keep Your
Angling Gear Free of Invaders
Keep all angling gear free of mud, plants, and organic debris in
between each and every use. Unknowingly moving a species
from one body of water to another, even within different
stretches of the same river, can start a domino effect of invasion,
causing irreversible ecological damage. It is especially important
to keep waders clean.
Anglers should scrub the bottom of boots or waders with
a brush and remove all mud, plants, and organic materials
in between each and every use. Anglers should then perform
ONE of the following options before going into the next body
of water:
OPTION 1

Submerge waders and
gear in a large tub
filled with a mixture
of 6 ounces per gallon
quaternary ammoniabased institutional
cleaner (such as Super
HDQ Neutral) and water
for at least 10 minutes,
scrubbing debris from
the gear, and visually
inspecting the gear for
snails before rinsing.
Follow all precautionary
label instructions! Rinse
water must be from a
New Zealand mudsnailfree source (to avoid re-infection),
and the chemical bath must be
properly disposed of, away from the
water body.
OPTION 2

Spray or soak waders and gear with
140º Fahrenheit water for at least
10 minutes.
OPTION 3

Dry your waders and equipment completely for a minimum
of 10 days in between each use (remember that mudsnails can
survive several days out of water).
OPTION 4

Place waders and boots in a freezer overnight between use.
Thank you for protecting Colorado’s fisheries
from the harmful impacts of invasive species!

�You Can Make a Difference!
You can help stop the spread of Aquatic
Nuisance Species (ANS) in Colorado
and the West! Before entering and
when leaving any waters always:
Clean: Remove all plants, animals, and
mud. Thoroughly wash everything:
boats, trailers, vehicle hitches, and
motors. Aquatic plant fragments and
animals can hide in mud and survive
many days out of water. Be sure to
clean all fishing equipment including
waders and boots.
Drain: Completely drain every space or item that could hold
water, including live wells, bait containers, ballast and bilge
tanks, and engine cooling systems. Leave the bilge plug out
during transport and any time the watercraft is not on the water.
Dry: Allow sufficient time for boats and equipment to dry
completely before launching in other waters.
Dispose: Properly dispose unused live bait into trash containers,
not into the water. Properly dispose of aquarium or classroom
animals or plants, do not place them in any body of water or
natural setting.
Report: If you find anything that you think is an invasive species
on your boat or in a water body, report it to the CPW by calling
(303) 291-7295 or emailing Invasive.Species@state.co.us.
For more information on invasive species, please visit:
•
•
•
•
•
•

http://www.westernais.org
http://www.100thmeridian.org
http://www.protectyourwaters.net
http://www.habitattitude.net
http://www.playcleango.org
http://www.dontmovefirewood.org
U.S. DEPARTMENT OF THE INTERIOR

This brochure was
made possible by
a grant from

BUREAU OF LAND MANAGEMENT

COLORADO PARKS &amp; WILDLIFE
6060 Broadway, Denver, CO 80216 (303) 291-7295 • (303) 297-1192
cpw.state.co.us
ALL PHOTOS BY ELIZABETH BROWN,
COLORADO PARKS AND WILDLIFE
UNLESS OTHERWISE INDICATED.
2/2016– 75,000

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'ti'

Mandatory
Boat Inspection
Checkpoint

�Why Inspect Boats?
''An ounce ofprevention is worth a pound of cure."
-Benjamin Franklin

Preventing the introduction and spread of Aquatic Nuisance
Species (ANS) is critical! Ai Sare a significant and are a
significant and rapidly growi ng threat to Colorado's water
supply and to boating a nd fishing recreation. ANS are
invasive animals, plants, and disease-causing pathogens that
are "out of place" in Colorado's rivers, lakes, streams, and
wetlands. They are introduced accidentally or intentionally
outside of their native range. Because they are not native to
Colorado habitats, they have no natural competitors and
predators. Without these checks and balances, the invaders
are able to reproduce rapidly and out-compete native
species. Once introduced. most invasive species cannot be
eradicated and cost millions of dollars to manage.
Because ANS are primarily spread by recreational boating
and angling, Colorado has implemented a large-scale
watercraft-inspection program to contain existing ANS
and prevent the introduction of others.

When does my boat need to be inspected?

You should inspect your own boat between every use and
make sure it is clean, drained, and dry. 1l1e State of Colorado
REQU1R£S your boat to be professionally inspected if:
• The boat has been in any water body that is positive or
suspect for ANS.
• The boat has been in any water body outside of Colorado.
• 1he boat will be entering any water body where
inspections are required.

�Where are watercraft
inspection and
decontamination stations
located?

Please check the Colorado
Divisio n of Wildlife web site or
call ahead for important details,
includ ing hours of operation,
ramp closures, fees for access or
services, and reservoir-specific
boating policies:

http://wildlife.state.co. us/Fishing/
MandatoryBoatlnspectio ns.htm
For detailed information about Watercraft Inspection and
Decontamination Stations operated by Colorado State Parks,
please visit:
www.parks.state.co.us

�Go Green! Boat
Inspection Seals
Explained
Green Seals

Green seals can save you time! Seals
are free to boaters and are available
at the inspection station when you
exit a lake or reservoir. Seals provide
documentation that reduces your time
waiting in inspection lines to enter the
water. Some inspection stations even
open an express lane for green sealed
boats on busy mornings.
Boat inspection seals and seal receipts
are proof of prior inspection. The
seal and receipt provide information
about the last water your
boat was at and the type
of inspection performed
there. Boat seals
temporarily attach the
boat to the trailer so that
the inspector knows the boat
has not launched since its last
inspection. Severn I different colors
are being used by boat inspection
stations in Colorado, but only green
seals are used across jurisdictions.
If you have a green seal, you must still stop at the inspection
station to have the seal and receipt verified. In order for the
seal to be valid, ii must have a fully filled out receipt with a
matching serial number. You will quickly be granted access
if yo u are returning to the same location or if your boat has
been out of the water for more than 30 days. If you are not
returning to the same location or you have not been out of
the water for more than 30 days,
the inspector may give your

�boat a quick check to ensure it is clean and dry. lf the boat is
not clean and dry, you will get re-inspected. Keep your boat
clean and dry and get on the water fast!
Boats are given green seals following an inspection or
decontamination upon exiting a lake or reservoir with
an inspection station, by request al the Denver or Grand
Junction CDOW Offices or at one of the many marinas
or marine dealers certified to do inspections. If one is not
offered to you when you leave the lake or reservoir, be sure
to ask for it!
What do yellow, blue, clear, and red seals mean?

Yellow, Blue, and Clear seals mean Lhe same thing- they
identify a boat that has exited a specific body of water and
plans to return to that same body of waler, such as overnight
campers or permit holders. These other colored seals are
only valid at the body of water in which the seal was applied.
State Parks use yellow seals, the City of Aurora use blue seals,
and the City of Westminster use clear seals to identify theiJ·
returning boaters. If your boat has one of these seals and it
doesn't return to the same water, it will be fully re-inspected
at a different lake or reservoir.

Red seals identify boats Lhat are currently in a mandatory
quarantine. Keeping a boat out of the water for a certain
length oftime based on temperature and humidity (usually
more than 7 days) is an acceptable form of decontamination
for ANS (zebra or quagga mussels can live out of the water
for up to 30 days). However, the ANS must still be removed
from the boat following the quarantine. Red seals are
used by the City of Aurora, City of Boulder, and City of
Westminster. These municipalities opt to use red seals to
identify quarantined boats to protect their waters from ANS.
If you go to a different water body with a red seal, your boat
will be fully re-inspected and possibly decontaminated.

�Tips for a Speedy Boat Inspection

The better prepared you and your boat are for an inspection,
the faster it will go!
What can you do to help make the entrance inspection
go faster at the ramp?

•

Have a green seal receipt read)' to present to the
inspector.

•

Remove any tarps and straps prior to entering the
inspection site.

•

At the inspection site, turn off the vehicle, set the
parking brake, get ou t of the vehicle and assist the
inspector with the inspection.

•

Make sure the bilge plug is removed and available to be
replaced at the end of the inspection.

•

Open all compartment hatches including but not limited
to: live/bail wells, bilge areas, anchor compartments,
equipment compartments and an)' other compartments
that hold items that have come into contact with the
water body.

•

Have the battery switch
turned on so that the
engine can be lowered or
pumps can be activated.

•

Havetheanchorand
ropes out of their
compartment for
inspection.

•

If using live aquatic
bait, please have the bail
receipt out and available
for the inspector.

•

Be Clean, Drained, and Dry and get on the water fast!

�What can a boater do to help
make the exit inspection go
faster at the ramp?

•

At the inspection site, turn
off the vehicle, set the
parking brake, get out of
the vehicle and assist the
inspector with the inspection.

•

Remove the bilge plug.

•

Lower the motor.

•

Open/drain all compartments including but no t limited
to: live/ bait wells, bilge areas, anchor compartments,
equipment compartments and any other compartments
that hold items that have come into contact with the
water body.

•

Activate all pumps (bilge, live well, ballast tan k, etc.) to
insure drainage.

•

Have the anchor and ropes out of their compartment
for inspection.

•

Place all unused bait in the trash.

•

Ask for a green seal and receipt to make the next
inspection go faster.

•

Remember to dry all equipment at
ho me prior Lo the next lau nch.

•

Stay Clean, Drained, and Dry.

...·.

�What Happens During a Boat
Decontamination?
Boats are decontaminated using hot water greater than 140°
Fahrenheit to kill mussels and other ANS. The exterior of
the boat and trailer are sprayed with a high pressure rinse
to rem ove the mussels o r ANS from the boat. The interior
compartments and the engine/motor flushed or rinsed with
low pressure hot water.

When Will Decontamination Be
Required?
Most inspections will not result in a decontamination being
performed. However, these circumstan ces m ay result in a
decontamination being performed:
•

If zebra or quagga mussels are found attached to a
watercraft

•

If any other ANS is positively identified or suspected on
a watercraft

�• If suspect
unidentifiable
bumps are
detected on a
watercraft
•

If the watercraft
is from a positive
water and has
any water in it

•

If the watercraft
is unable to be
fully drained

•

If the watercraft
has more than
5 gallons of
standing water in
it after draining

•

If the watercraft has more than 2 ballast tanks with
unverifiable water in them

•

If the watercraft or trailer has plants attached that can't
be removed by hand

•

If the watercraft has live aquatic bait without a valid
receipt.

�What's the
Big Deal with
Standing
Water?
Zebra and quagga mussels
start off life as microscopic,
free-floating o rganisms
that are too small to see
with the naked eye. Th ey
can be transported to new
locations in stand ing water
in live wells, b ilge areas,
and other compartments
on boats. Mussels aren't
the only unseen invasive
species. O thers, such as the
spiny water flea (pictured
right), are also microscopic
and transported in the
water fro m the lake o r
reservoir. Small plant
fragments that get sucked
up in water onto the
boat could start a new
infestation in another lake
if flushed out there. To
prevent the movement of
invasive species through
standing water on boats,
the lake or reservoir water
must be fu lly drai ned o ut
of the boat in between each use. If the standing water cannot
be fully drai ned, the boat may need to be decontaminated.

�What's the Big Deal about Bait?
Live baitfish can harbor diseases that can be spread when
they are transported. For this reason, the transport of live
baitfish is now prohibited. Live bait fish must be used in the
same body of water from which they are taken, except for
those fish captured within the Lower Arkansas River Basin
(below Pueblo), which may be transported and used in other
coLmties within that same area.

Anglers using live baitfish purchased from an authorized
Colorado dealer should keep their receipt with it to show
the inspector. If the receipt is less than 7 days old, and the
species listed on the receipt matches what is in the container,
the angler will be permitted to use that bait east of the
Continental Divide. If there is no receipt, the live baitfish will
not be permitted for use and will be disposed of in the trash.
Use oflive baitfish remains prohibited above 7,000 feet on
the east slope and in all areas west of the Continental Divide,
except Navajo Reservoir.
All crayfish caught west
of the Continental Divide
must now be immediately
killed by removing the
head from the thorax and
taken into possession,
or immediately returned
to the water from which
they were taken. The
same restriction applies
to Sanchez Reservoir on
the East Slope due to the
invasive rusty crayfish
found there in 2010.

�Frequently Asked Questions
Q: Isn't trying lo stop the spread of zebra mussels and other

ANS a lost cause, similar to stopping the spread of the pine
beetle?
A: No. Unlike the native pine beetle, most ANS canno t
spread over land on their own. Most a re spread overla nd
by human activities, such as boating and angLing. If
boaters and anglers always Clean, Dr ain, and Dry tJ1eir
boats and equipment, they will prevent the spread of
ANS to new locatio ns. States with aggressive watercraft
inspection and education programs have significantly
slowed o r even stopped the spread of invasive species.
PHOTO 8Y At/(HtGAN SEA GRANf

Q,: Why are watercraft inspected at some locations but

not others'
A: lhere will never be eno ugh mo ney to have in spections
everywhere. Inspectors and inspection stations are
placed at locations based o n r isk of introduction from
recreational activities. Ultimately, preventing the spread
of ANS relies o n boaters a nd
an glers acting responsibly.
Boaters must inspect their own
vessels when inspections are
not available. Anglers should
clean gear between each use.
(l: Is Colorado over-reacting lo
the discovery ofa few zebra and
quagga mussels? Shouldn't we
wait a11d see what happens over
the next few years?
A: No. States that have waited to
act found that zebra a nd quagga
mussels spread rapidJy. These
destructive and costly invaders
o ut-compete native species for
food and habitat, foul boats
and engines, and damage and
clog water infrastructure. Every
precaution must be taken to
ensure these invaders remain
confined to their current
locations.

�Q: Can we get rid of zebra and quagga mussels in Colorado
lakes and reservoirs?
A: Like most ANS, zebra and q uagga m ussels are nearly
impossible to eradicate. No large waters have ever been
able to get r id of them, even with a draw down. Prevent ing
the spread of zebra and quagga mussels and other ANS
thro ugh education and boat inspections is the best tool
we have to keep boating and fishing waters open and
beaut iful for now and the future.

......__ _

-~----•DIWH

�t, h

�Five Options to Keep Your
Angling Gear Free of ANS
Keep all angling gear free of mud and organic debris in
between each and every use. Unknowingly moving a species
from even one stretch of the river to another can start a
domino effect of invasion, causing irreversible ecological
damage. It is especially important to keep waders clean.
Anglers should scrub the bottom of boots or waders
with a wire brush and remove all mud, plants, and
organic materials in between each and every use. Anglers
should then perform ONE of the following disinfection
recommendations before going into the next body of water:
OPTION 1

Submerge waders and gear in a large tub tilled with 50%
Formula 409 a nd waler for at least 10 minutes, scrubbing
debris and visually inspecting waders and gear for snails
before rinsing. Rinse water must be from a New Zealand
mudsnail-free source (to avoid re-infection) and the
chemical bath must be
properly disposed of away
from the water body.
OPTION 2

Submerge waders and gear
in a large tub fi lled with 1:15
ofSparquat 256 institutional
cleaner (3.1 % concentration)
a nd water for at least 10
minutes, scrubbing debris
from the gear, and visually
inspecting the gear for snails
before rinsing. Rinse water
must be from a New Zealand
mudsnail free source (to
avoid re-infection), and the
chemical bath must be properly disposed
of away from the water body.
OPTION 3

Spray or soak waders and gear "·ith water greater than
greater than 140° Fahrenheit for at least 10 minutes.
OPTION4

Dry your waders and equipment completely for a minimum
of 10 days in between each use (remember that mudsnails
can survive several days out of water).
OPTION 5

Place waders and boots in a freezer overnight between u~e.

�You Can Make a Ilifference!
You can help stop the spread of Aquatic
Nuisance Species (ANS) in Colorado
and the West! Before entering and
when leaving any waters always:
Clean: Remove all plants, animals, and
mud. 'TI10roughly wash everything:
boats, trailers, vehicle hitches, and
motors. Aquatic plant fragments and
STOP AQUATIC
animals can hid i11 mud and survive
HITCHHIKERS r·
many days out of water. Be sure to clean
all fishing equipment including waders and boots.
Drain: Completely drain every space or item that could hold
water, including Uve wells, bait containers, ballast and bilge
tanks, and engine cooling systems.
Dry: Allow sufficient time for boats and equipment to dry
completely before launching in other waters.
Dispose: Properly dispose unused live bait into trash
containers, nol into the water. Properly dispose of aquarium
or classroom animals or plants, do not place them in any
body of water or natural setting.
Report: If you find anything that you think is an invasive
species on your boat or in a water body, report it to the
DOW by calling (303) 29 1-7295 or emailing ReportANS@
state.co.us.
For more information on ANS, please visit:

•

http://www. lOOth meridian.org
http://w•.vw.protcctyourwaters.net
http://www.habitattitude.net

'111is broch11re 11111s made possible by 11 grant from

•

'

'I

~

-

Colorado State Park~

~ ~ 111./d,
The Colorado Division of Wildlife Is the state agency responsible for protecting i1nd m.1na91ng
wUdlife and itl habttat1 ai well as providmg wildhfo·-related rcc:rea11on. The Division,~ runded
l)y t)untlng and fishing licen.se fees, federal grants, and Colot.ido Lottery proceeds through

Great Outdoor&lt; Colorado.

1/2011 150 000

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&#13;
2011 print copy, CPW Library: FILE Boa</text>
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