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File #: 1785-2018    Version: 1
Type: Ordinance Status: Passed
File created: 6/19/2018 In control: Public Utilities Committee
On agenda: 7/16/2018 Final action: 7/18/2018
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; to authorize the transfer of $45,000.00 between object classes within the Stormwater Operating Fund; to authorize the expenditure of $184,068.68 from the Stormwater Operating Fund, and $115,000.00 from the Water Operating Fund. ($299,068.68)
Attachments: 1. ORD 1785-2018 Green Infrastructure Insp & Maint - Mod #2 - Addt'l Info form, 2. 1785-2018 Financial Coding
Explanation

The Department of Public Utilities entered into a 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 28 sites with 51 basins/wetlands and 19 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, both the Barthman Parsons Blueprint Green Infrastructure Pilot Projects Phase I & II called Group B. Each site may have multiple basins, swales, or other types of green infrastructures. Additional sites may be added in the future. All facilities are located in Franklin, Fairfield, and Delaware Counties. The primary requirements are to inspect the green infrastructure components and repair or replace them if necessar...

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