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and approves those plans and specifications, it needed to monitor and follow-up <br /> with the contractor and/or subcontractors on frequent inspections to avoid those <br /> vendors from being tempted to cut some corners and install water service at 6' <br /> versus the proscribed 8' as specified. Member DeBenedet questioned why a <br /> property owner should be responsible for that situation, when they had nothing to <br /> do with the system's design or inspection process, opining that therefore the onus <br /> was not on the property owner. <br /> Chair Vanderwall asked staff to provide an update to the PWETC as it was <br /> available, noting that the City Council's policy decision would be of interest to <br /> the Commission as well as the public. <br /> 6. Stormwater Credit Policy <br /> Mr. Schwartz advised that this proposal had been on the Public Works <br /> Department's work plan for some time; and a property owner had recently <br /> requested stormwater credit for mitigation efforts to prevent stormwater from <br /> leaving his site, and fees he felt were too high based on that work, and the <br /> topography and berming done specific to his site. At the request of Mr. Schwartz, <br /> the City's Environmental Specialist Ryan Johnson reviewed research on Best <br /> Management Practices (BMP's) in urban environments to address runoff into <br /> bodies of water, a major source of water pollution in urban areas. Mr. Johnson <br /> presented a draft program that the City of Roseville could potentially implement <br /> as detailed in the staff report as well as stormwater rate comparisons with other <br /> local communities and those of Roseville. Mr. Johnson noted that this was a first <br /> look at the proposed program, and staff was seeking feedback, questions and ideas <br /> from the PWETC before proceeding further. <br /> Mr. Johnson discussed the runoff generated during storm events for commercial <br /> and residential properties based on their total acreage and impervious versus <br /> pervious surface rations. Mr. Ryan noted that the goal was to encourage property <br /> owners to manage stormwater on site to help manage problems overall, not just in <br /> the municipality but also across the region. Mr. Johnson reviewed some options, <br /> including rain gardens, porous driveways, dry wells, infiltration trenches and <br /> other ways to mitigate this runoff, any of which could qualify for a stormwater <br /> credit program, as proposed. Of course, Mr. Johnson noted that depending on the <br /> type of system, continued monitoring at a minimum of every five years would be <br /> required by an engineer, especially on industrial sites. <br /> Discussion among staff and commissioners included how to prove underground <br /> storage facilities were being maintained and cleaned out as applicable as <br /> diminishing capacity was indicated with potential revoking of credits unless <br /> mitigation efforts were forthcoming; preferred annual inspection of any property <br /> receiving credits, whether by staff or engineers as applicable and depending on <br /> the type of system (e.g. rain garden, pond, or underground infiltration system); <br /> confined space entry requirements for inspection of underground systems; <br /> whether citizen-driven complaints would initiate more frequent inspections than <br /> Page 4 of 14 <br />