HomeMy WebLinkAboutCLYDESDALE PARK FIRST & SECOND ANNEXATIONS - ANX140002 - CORRESPONDENCE - CITIZEN COMMUNICATION (13)i. The Utility Department made a preliminary estimate of the percent
impervious for Clydesdale Park of 34-37% for a rate factor of .4. This is
just above the 30 percent impervious cut off for the .25 rate factor.
ii. If the effects of slope and the retention ponds were considered in a more
complete calculation of a `run off coefficient', we believe that Clydesdale
Park lots would fall in the .25 rate factor class.
e. City's' low impact development' technique:
i. Clydesdale Park is a prime example of the low impact development
advocated by the City Utilities
ii. Those features should be recognized in setting the storm water utility rate
Solution:
1. Recognize the unique retention po
applying a rate factor of 0.25 to th
e Park by
Clydesdale Park Homeowners Association
c/o Colorado Association Services
1063 West Horsetooth Road, Suite 100
Fort Collins, CO 80526
July 25, 2014
Issue: Apply a .25 storm water rate factor to Clydesdale Park in recognition of the
effects that the ponds and slope have on reducing run-off.f. yI,
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Background and Concerns: u
1. City code (sec. 26-513) requires all developed,ll'ots to;apay a storm water utility fee.
a. We agree that Clydesdale Park lot owners; and all lot;owners in Fort Collins,
should pay a storm water management�fee.Ip,,
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b. All Fort Collins residents benefitiffrom storm water management
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c. All lands contribute run off which contributes to the storm water, management
needs of the City. .'�Nlli a p�'" , °!��I;I�I�!'il
2. The level of the storm water fee should be',related to the run off contributed from
each lot.
a. City code states that `The storm water utility fee,shalI be ... based upon the area of
each lot ... and the runoff coefficient of the lot.°'I (sec. 26-514)
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b. The Utility Department uses the `percent of impervious,area' of a lot as a simple -
to -apply proxy.for a `runoff coefficient',
3. While simple to apply, the `percent of impervious area calculation is an
incomplete indicator of run off.
a. The `percent impervious' measurement does not consider the slope of the land nor
ill',,P,ljl'the`:p,reslie�pnce of retention ponds which collect runoff and keep it from leaving the
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Slope: Thellots in Clydesdale Park are essentially flat, which enhances the
percolation of rain water and reduces run-off relative to steeply sloped land.
c ''uronas: "a�ylll�!i��IV
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,,!, With one mor exception, all of the lots and roads in Clydesdale Park
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illi �drain into fo!ui �common area ponds which total six acres.
ii Storm wateillis; retained in those ponds where it is used for irrigation of the
15'ti'acress,pyIlcoinmon area turf or it evaporates. For example, the storm of
July 112.th�ibjii1illead to retention of approximately 1.15 acre feet in the ponds
which was used for irrigation.
iii. Water only leaves the common area ponds during extreme storm events,
when it flows through a ditch into Box Elder Creek east of I25 and then on
to the Poudre River immediately west of 125.
iv. Therefore, in all but the most extreme storm events, the Clydesdale Park
ponds not only detain the water, they actually `retain' the water within the
neighborhood. The water does not run off into any system which the
Utility Department manages except in rare circumstances.
d. Preliminary rate factor for Clydesdale Park: