01-10-23 Agenda Packet - Laserfiche WebLink

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Draft Minutes for Karth Lake Improvement District Board Regular Meeting 6:30 PM, Tuesday, October 11, 2022 1. CALL TO ORDER/ROLL CALL The meeting convened at: 6:30 PM. Present: Board Members: Aisha Elmquist, Chair; Renée Marino, Secretary; Gary Gerding; Kathy Johnson; Linda Hansohn (via conference call); Susan Johnson Staff Liaisons: David Swearingen, Public Works Director City Council Liaison: Steve Scott, City Council Member 2. APPROVAL OF AGENDA: The agenda was approved as written. 3. APPROVAL OF MINUTES: The minutes of the previous meeting on April 12, 2022 were approved as written. 4. PUBLIC INQUIRIES: None. 5. OLD BUSINESS 5.1 Remediation of BMP #1 Site, Meeting with Kyle Axtell of Rice Creek Watershed: Kathy Johnson and Board 5.1.1 Background: In 2021 the city completed installation of a storm drain at the BMP #1 site that transports the runoff from parking lots and roads south of Karth Lake down a drain pipe that goes under the Cummings Park walking path. This eliminates the source of silt into Karth Lake from the former above-ground flow. That project did not address the flow of water from the walking path to the lake. Action from 4/12/22 Meeting: Sue Johnson agreed to capture video of the water flow in Downstream BMP #1. Kathy Johnson agreed to set up a meeting at the BMP #1 site with Kyle Axtell from RCWD and any board members that could attend for his thoughts on Downstream BMP #1 mitigation. Discussion: Susan Johnson did capture video. Susan Johnson, Kathy Johnson and Renée Marino met with Kyle Axtell at the site on May 9, 2022. Kyle had said that the site appeared to operating as designed. The design had not included the last segment of drainage between the path and the lake (the “Downstream BMP #1” segment). Susan’s video showed significant water flow in this segment during a rain. On the day of Kyle’s visit, although dry, this segment appeared to have suffered significant erosion. Kyle suggested that the city could pour gravel along at least some of that segment to reduce the volume of silt carried into the lake. David Swearingen reported that said the catch basin in the BMP#1 site had filled up with debris in 2022. After the city had removed the debris, it again operated as designed. He also said that the city did not have the resources to pour gravel along the Downstream BMP#1 segment, but will address that area in 2026 (as discussed below). Gary Gelding noted that the BMP#1 design still offered no filtering of oil and other pollutants. Several reiterated that the design was a misnomer and addressed