Study: Stormwater not to blame for Cannon Hill Park ponds cloudiness – Thu, 18 Sep 2014 PST

Cannon Hill Park may be a beloved and classic example of an Olmsted Brothers park on Spokanes South Hill, but the pond at its center has quickly become a point of contention for itsneighbors.

This summer, the pond became muddy and opaque, leading local residents to question why. Some of them blamed swales along nearby Lincoln Street, said Park Director LeroyEadie.

A recent report from AHBL, a green infrastructure firm, said this isnt true. Treated stormwater from Lincoln Street accounts for less than 2 percent of the ponds entire volume on an average year. In

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Cannon Hill Park may be a beloved and classic example of an Olmsted Brothers park on Spokanes South Hill, but the pond at its center has quickly become a point of contention for itsneighbors.

This summer, the pond became muddy and opaque, leading local residents to question why. Some of them blamed swales along nearby Lincoln Street, said Park Director LeroyEadie.

A recent report from AHBL, a green infrastructure firm, said this isnt true. Treated stormwater from Lincoln Street accounts for less than 2 percent of the ponds entire volume on an average year. In 2013, that amounted to 390,000 gallons, said Marlene Feist, the city utilities spokeswoman. A really wet year will bring that total up to about 8percent.

Len Zickler, a landscape architect with AHBL, told the Spokane Park Board last week that treated stormwater was not muddying the pondwater.

Id like to dispel that perception, he told the board. AHBL was involved in landscaping the swales. The citys utilities department paid AHBL about $30,000 for the Cannon Hill pondstudy.

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Study: Stormwater not to blame for Cannon Hill Park ponds cloudiness - Thu, 18 Sep 2014 PST