HomeMy WebLinkAboutTHE ELLIE AT OLD TOWN NORTH - PDP240002 - SUBMITTAL DOCUMENTS - ROUND 2 - Supporting DocumentationTH
SMITH ENVIRONMENTAL & ENGINEERING
Delivering Smart Solutions for Planning, Permitting, & Design
June 19, 2024
Ryan Van Horn
Van Horn Development
1617 Wazee St
Denver, CO 80202
RE: Ellie at Old Town North - Prairie Dog Management
Dear Van Horn:
In response to your request for a proposal, this letter details the scope of work that Smith
Environmental and Engineering (SMITH) will complete to remove prairie dogs from the 0.8-acre property
at Suniga Rd and Blondel St in Fort Collins, CO (Figure 1). Three management options are presented: live
relocation, live-trapping and donation, and fumigation.
TASK 1: PRAIRIE DOG MANAGEMENT PLAN
SMITH will prepare a plan that describes the protocols for removing prairie dogs from the 0.8-acre
property. This plan will be submitted to the City of Fort Collins as a part of the development review
process. SMITH will respond to one round of comments and edits, as necessary. If the preferred
management option has not been selected, SMITH's plan can address multiple options, including live
relocation, donation, and fumigation options (described below).
TASK 2: BURROWING OWL SURVEY
All prairie dog colonies, active or inactive, provide potential habitat for the Burrowing Owl. The
Burrowing Owl nests in Colorado from mid-March through October each year. If trapping or fumigation
activities are proposed during the nesting season, Burrowing Owl surveys must be completed. SMITH
will complete owl surveys following CPW's recommended guidelines.
TASK 3, OPTION A: LIVE RELOCATION
Relocation is only a management option during certain months, because prairie dogs cannot be
relocated when the females are pregnant and/or pups are still dependent on their mothers. If prairie
dog removal is proposed between July and November, prairie dogs will be accepted for relocation by the
US Fish and Wildlife Service (USFWS) at the Pueblo Chemical Depot. Subtasks for this method are
described below.
Colorado Parks and Wildlife Permit
A permit is required from Colorado Parks and Wildlife (CPW) for relocating prairie dogs. SMTH will work
with Van Horn Development and the US Fish and Wildlife Service (USFWS) to obtain a CPW permit.
WWW.SMITHDELIVERS.COM
250 Perry Lane Dacono, CO 80514 phone: 720.887.4928 fax: 720.887.4680
Population Estimate
The CPW permit application requires a population estimate for prairie dog colonies that are to be
relocated. This information also allows for accurate planning and preparation of the release site. SMITH
will complete a population estimate.
Coterie Identification
Within the greater colony, prairie dogs live in family groups called coteries. To reduce mortality caused
by the relocation process, prairie dogs need to be moved as a family unit. Males are very territorial, so
this will reduce hostility between males. SMITH will identify and map the coteries within the colony so
that family units can be moved together. Each coterie will be identified by a number.
Burrow Dusting
CPW requires that all prairie dog burrows at the capture site be treated with Delta Dust (Deltamerthrine
— EPA Reg.#432-77Z) one week prior to trapping. SMITH's licensed applicators will dust the burrows one
week prior to trapping activities.
Live Trapping
SMITH will utilize up to 400 Tomahawk live-traps baited with sweetened rolled oats to capture prairie
dogs. The trapping period will include three days of pre-baiting during which prairie dogs are allowed to
acclimate to the traps, followed by seven days of live trapping. Traps will be activated and monitored
weekdays between 0800 and 1700 hours. Captured prairie dogs will be removed from the trapping field
within four hours of capture and housed in their cages in a protected area on site until the daily trapping
period is complete. All prairie dogs will be transported to the release site the day of capture or housed
up to four nights in a CPW approved facility. If the temperature is below 32° F or above 75°, prairie dogs
will be moved to a protected area within 1.5 hours of capture. Each captured prairie dog will be
removed from its trap by a trained wildlife technician and treated for fleas with Pyranha Insecticide
(Pymethrin - EPA Reg. #21165-1). The sex, coterie and approximate age of each prairie dog will be
recorded, and the prairie dog will be returned to its trap. Any non-target animals that are trapped will
be released immediately.
Live Transport
Prairie dogs will be transported to the release site in a covered pickup truck bed or covered trailer.
Prairie dogs will remain in their traps during transport. The USFWS will be responsible for the release of
the prairie dogs at the chemical depot. SMITH will transfer the prairie dogs to them at the release site or
an agreed upon location near Pueblo.
Fumigation
Live-trapping projects do not capture 100% of the population; there are always a proportion of
individuals that are not catchable. Because of this, SMITH will fumigate all burrows within the project
area using pressurized exhaust to exterminate any remaining prairie dogs after the trapping period.
The PERC utilizes compressed exhaust collected from a small internal combustion engine. Upon
collection, the exhaust is cooled and compressed for distribution into burrows. SMITH will utilize this
machine with four hoses to fill burrows with engine exhaust, which contains a high level of carbon
monoxide gas. Once a burrow is filled with the gas, it is plugged with soil whereby all animals in the
burrow should succumb to the gas. After the initial treatment, SMITH will perform two follow-up
inspections and re-treat all open burrows found during that time. Pressurized exhaust can only be
used on burrows located 100 feet or more from any habitable structure due to Colorado Department
SMITH ENVIRONMENTAL AND ENGINEERING
of Agriculture regulations. All burrows requiring treatment within 100 feet of a structure will be
treated with CO cartridges, which are not regulated against such use.
The fumigation consists of one initial treatment and two follow-up treatments. However, prairie dogs
can survive all three treatments or migrate onto the site from nearby properties. If needed, SMITH can
provide additional fumigations for an additional fee.
Completion Report
After fumigation, a Completion Report will be prepared and submitted to Van Horn Development.
TASK 3, OPTION B: DONATION
If prairie dog management activities are scheduled to occur between December and May, live trapping
for donation to a raptor rehabilitation center is the only feasible option. Even then, trapping is
discouraged in April and May due to the potential for separating pups and mothers. The following
subtasks describe this approach.
Colorado Parks and Wildlife Notification
CPW requires a permit only when prairie dogs are transported alive. For non-permitted projects, CPW
requests communication prior to the start of trapping and submission of documentation of the number
of prairie dogs removed and donated from project sites following project completion. SMITH will contact
the DWM for the area and submit a CPW Dead Prairie Dog Transportation Report upon project
completion.
Live Trapping
Trapping procedures are generally the same as those described in Option A. Prairie dogs will not be
removed from their traps before being euthanized and will not be treated with insecticide.
Euthanasia
SMITH utilizes compressed carbon dioxide (COz) gas to euthanize prairie dogs. Captured prairie dogs will
remain in their cages which will be placed four at a time into gas chambers. Following the American
Veterinary Medical Association procedures for euthanasia using COz, SMITH will slowly subject the
captured prairie dogs to the gas, which will put them to sleep and kill them within about 20 minutes.
SMITH will also perform cervical dislocation on each animal after gassing to ensure death.
Donation
SMITH will store all euthanized prairie dogs in freezers at the SMITH facility for up to one month. This
ensures that any disease vectors, specifically fleas, are dead. SMITH will donate dead prairie dogs to the
Rocky Mountain Raptor Program in Fort Collins where they will be used as food for rehabilitating
raptors. SMITH has been donating prairie dogs to this facility for over five years.
Fumigation
Fumigation procedures after the trapping period are the same as those described in Option A.
Completion Report
After fumigation, a Completion Report will be prepared and submitted to Van Horn Development.
TASK 3, OPTION C: FUMIGATION
SMITH ENVIRONMENTAL AND ENGINEERING
Fumigation with pressurized exhaust (PERC) can be conducted essentially year-round, though daytime
temperatures must be above freezing for proper functioning of the machine. Because the prairie dogs
are completely lost from the ecosystem under this management option, Fort Collins may require a
substantial in-lieu fee.
Fumigation
Fumigation procedures are the same as those described in Option A. One initial treatment and two
follow-up treatments are included in this fee, though additional treatments can be provided for an
additional fee. The need for retreatments increased when trapping does not occur as the likelihood of
surviving individuals is increased.
Completion Report
After fumigation, a Completion Report will be prepared and submitted to Van Horn Development.
SMITH ENVIRONMENTAL AND ENGINEERING
Figure 1: Project Area
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and Engineering N PRAIRIE DOG MANAGEMENT ProjectArea
250 Perry Lane N E 0 75 150 Fort Collins, Colorado
Dacono, CO 80514 Feet June 2024
(720) 887-4928, (720) 887-4680 (�ax)
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