HomeMy WebLinkAboutLEMAY AVENUE ESTATES - PDP - 37-04 - CORRESPONDENCE - CITY STAFFLetter to Mr. Terry McKee, U.S. Army Corps of Engineers
RE: Stormwater Outlet, Lemay Avenue Estates
Fort Collins, Larimer County, Colorado January 7, 2005
• No adjacent property owners or downstream water rights would be affected. The detention
facility has been designed so as not to change historic agricultural discharge to the creek.
Please note that, although the delineation was conducted in December 2004, the winter season
did not impede the determination regarding presence/absence of wetlands along the affected
reach of Stanton Creek. Vegetation was clearly visible and consisted almost entirely of upland
pasture grasses, with only scattered individuals of showy milkweed and curly dock. Distinct
cattail wetland areas at the upstream and downstream ends of Stanton Creek adjacent to the
property would not be directly or indirectly affected.
Regarding Preble's meadow jumping mouse (Zapus hudsonius preblef), it is my professional
judgement that the affected reach neither provides habitat for Preble's nor represents a potential
movement. corridor between other areas. This is based on the absence of habitat typically
associated with Preble's onsite and in either the upstream or downstream locations close to the
site. The adjacent development east of the creek and agricultural land onsite west of the creek
further support this conclusion.
The incised, weedy, and disturbed habitat along the creek also does not appear suitable for
either the Ute ladies'- tresses orchid (Spiranthes diluvialis) or the Colorado butterfly plant Gaura
neomexicana ssp. coloradensis). Although the survey was conducted in winter, other plant
species were still readily identifiable. Moreover, the very small extent of impacts to the creek,
limited to a currently unsuitable area of degraded habitat, would not affect either species in the
unlikely event that they do occur in upstream or downstream reaches.
Please call with any questions. Thank you for your consideration.
Sincerely,
Allen B. Crockett, Ph.D.
Senior Ecologist
cc: Mr. Stan Everitt
The Everitt Companies
3030 South College Avenue, Suite 200
Fort Collins, Colorado 80525
970-226-1500
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_-PAWildlife -Wetlands\Everitt.5987\Wetland Letter.doc 2
January 7, 2005
Terry McKee
Denver Regulatory Office
U.S. Army Corps of Engineers
9307 South Wadsworth Boulevard
Littleton, Colorado 80128
Re: Request for Nationwide Permit Verification, Proposed Stormwater Outfall Structure
Stanton Creek, Larimer County, Colorado
Dear Mr. McKee:
The purpose of this letter is to request verification that proposed construction of a stormwater
oufall to Stanton Creek (a tributary of Fossil Creek) in Larimer County, Colorado, is authorized
under a Nationwide Permit pursuant to Section 404 of the Clean Water Act. This request is
being made on behalf of Mr. Stanley Everitt of the The Everitt Companies, 3030 South College
Avenue, Suite 200, Fort Collins, Colorado 80525, 970-226-1500 (fax 970-223-4156). Pertinent
facts concerning the site and this request are as follows:
• The proposed residential development for which the stormwater detention facility and outfall
structure are required is located east of Lemay Avenue and north of State Highway 392
(Windsor Highway) in the SW'/4, Section 18, Township 5 North, Range 68 West (Latitude
40' 29' 36" North, Longitude 105° 02' 51" West). Figure 1 is a site location map.
• Although no wetlands are located along the reach of Stanton Creek into which the
stormwater detention facility would outfall, the creek itself is stipulated to be jurisdictional
based on a distinct streambed and connectivity with Fossil Creek.
• Total permanent impacts to the jurisdictional waters would consist of approximately 100
square feet and would include the mouth of a concrete pipe and riprap armoring.
• Total temporary impacts to jurisdictional waters during construction would be approximately
100 square feet additional.
• Best Management Practices (BMPs) would include:
— use of silt fencing and, as necessary, straw bales to prevent runoff of disturbed soil into
the creek
— restriction of operation of construction equipment to upland areas, except for disturbance
within the areas of temporary or permanent impacts described above
— temporary staging of equipment and stockpiling of construction materials and excavated
soil in upland areas
• The project would not require a cofferdam or diversion of Stanton Creek.
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