HomeMy WebLinkAboutAMOCO SERVICE STATION EXPANSION, NON-CONFORMING USE - 58-88 - CORRESPONDENCE - DRAINAGE RELATED DOCUMENT•
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September 5, 1988
P777"
HOLLAND WEST, INC.
Mr. Glenn Schlunder
City of Fort Collins
Stormwater Utility
235 Mathews
P.O. Box 580
Fort Collins, CO 80525-0580
D L96L OW[E
SEP - 7 1988
RE: Drainage for Amoco Station No. 5401, Elizabeth and Taft Hill
Road
Dear Glenn:
In response to your comments on the drainage, I have prepared support
calculations to show there is not an increase in run-off for this
site. We are adding landscaping to a site that currently has no
landscaping and we are, in fact, reducing the run-off. I have
enclosed a copy of the survey showing the existing conditions.
The curb and gutter proposed to be added to the existing pavement is
concentrating approximately 0.05 Ac. of run-off into the southwest
corner of the site. This amounts to approximately 0.35 cfs in the
100 year storm. This run-off currently sheet flows off the Amoco
site to the shopping center parking lot located to the west. It is
then picked up in an existing inlet located in the shopping center
parking lot. The proposed run-off will still go to the existing
parking lot inlet. The small amount of flow concentrated in the
southwest corner of the site will have no adverse effect on the
adjacent property and will not alter the existing flow path.
In conclusion, our original request dated June 30, 1988 (copy
enclosed) remains the same.
If you have any further questions, please call.
Sincerely,
HOLLAND WEST, INC.
&J, z4L��
Steven W. Murray, P.E
Director of EngineeriV9_
cc: Linda Ripley
Bill Horn
C-1841 6920 South Holly Circle, Englewood, Colorado 80112 (303) 773-0020
Planners • Engineers • Surveyors • Construction Managers
Denver • Phoenix • Ft Worth
HOLLAND WEST, INC.
June 30, 1988
City of Fort Collins
Engineering Department
300 LaPorte Ave.
Fort Collins, CO 80522
RE: Amoco Station No. 5401, Elizabeth and Tafthill Road
Dear Sirs:
Amoco oil is in the process of rehabilitating the existing
service station located at the southwest corner of
Elizabeth and Tafthill Road. The remodeling consists of
adding a carwash to the rear (west) of the existing
building, and erecting a canopy over new pumps to be
located in the same location as the existing pumps. As
both of these new additions will be placed over areas of
existing paving, no increase in runoff will be
anticipated. In fact, approximately 16% of the site will
be landscaped, which, as no landscaping currently exists,
will reduce the expected runoff proportionately. The
grades on the site will remain the same;- as the existing
building will remain.
Therefore we request that the normal storm drainage
submittal requirements be waived, as the proposed
construction does not impact the existing storm drainage.
Sincerely,
HOLLAND liB*,,INC.
St*efv. A LAktik&vy5*P.Z. /J -
Dir'aalydF of Engxpaerin
C-1754
6920 South Holly Circle, Englewood, Colorado 80112 (303) 7 3-0020
Planners • Engineers • Surveyors P Construction Managers
Denver • Phoenix • Ft Worth
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