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File #: 3093-2019    Version: 1
Type: Ordinance Status: Passed
File created: 11/18/2019 In control: Public Utilities Committee
On agenda: 12/16/2019 Final action: 12/18/2019
Title: To authorize the Director of Public Utilities to enter into a planned modification of the Green Infrastructure Inspection and Maintenance Project with Watershed Organic Lawn Care for the Department of Public Utilities, and to authorize the expenditure of $119,000.00 from the Water Operating Fund. ($119,000.00)
Attachments: 1. Green Infrastructure Insp & Maint - Mod #5 - Addt'l Info form, 2. c9301 910 map, 3. Ord 3093-2019 Financial Coding - Green Infrastructure Insp & Maint Project - Mod# 5

The Department of Public Utilities wishes to modify its contract with Watershed Organic Lawn Care for the purpose of inspecting the performance of and maintaining the City’s bio-retention basins. The City of Columbus is committed to investing in green infrastructure. As part of this commitment, the City has built a number of bio-retention basins in the right-of-way and/or on City owned property.

Bio-retention basins are engineered, shallow depressions that treat stormwater runoff using pollutant removal mechanisms that function in natural ecosystems: settling, filtration, absorption, microbial breakdown, and nutrient assimilation. Surface runoff is directed into the bio-retention area where it temporarily ponds before infiltrating through mulch and a soil media planted with vegetation. The infiltrated water percolates into soils and, if necessary, enters a perforated underdrain that discharges into a water body or storm drain system.

The City is currently responsible for the maintenance of 6 sites with 98 basins located in or around the Riversouth area of downtown, W. Broad St. at Starling called Group A. There are 38 sites with 196 basins/wetlands and 20 swales located at Griggs, O’Shaughnessy, Hoover Reservoirs, Idlewild Drive, American Addition, Crawford Farms, Watershed Roadway Improvements Part 2 at Hoover Reservoir and Watershed Roadway Improvements Part 3 at Griggs Reservoir, Smokey Row Booster Station Drainage Project, Dublin Road Water Plant Treatment Capacity No. 3 and Dublin Road Water Plant Treatment Capacity Increase, the Barthman Parsons Blueprint Green Infrastructure Pilot Projects Phase I & II, Brentnell Avenue and Bar Harbor, Blueprint Clintonville Glenmont Avenue, Briggs Road Detention Basin retrofit, Reservoir Pollution Reduction Project at Hoover Reservoir at Twin Bridges site 24, American Addition Phase 2&3, Schreyer Springs, Weisheimer-Indian Springs, and Weisheimer Road called Group B. Each site may have multiple...

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