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9 <br />Interim to <br />- <br />Indicate how the project will transition from the interim <br />The "interim plan" is already in place and being <br />Final Plan <br />plan with the containment vault to regular stormwater <br />executed by Nelson. No stormwater has been <br />conveyance and new sewer connection. Include any <br />discharged to the storm system since the violation <br />pertinent details on the plans. <br />notice in April 2023. Nelson has been monitoring <br />the water levels within the OWS vaults and the <br />4,500-gallon containment vault, and contracts with <br />a commercial service to pump out the vault on an <br />as -needed basis. The IDPP plan submitted under <br />Permit No. P2309-027, proposes to pump the <br />collected stormwater from the containment vault to <br />a temporary catch basin in the southeast corner of <br />the site before connecting to the sanitary sewer. <br />With the existing infrastructure in place for routing <br />runoff to the existing OWS vaults and containment <br />vault, new stormwater piping and connections per <br />the final design can be made after drawing down <br />the water levels in the vaults. <br />10 <br />Interim to <br />- <br />How will the site prevent untreated runoff / pollutants <br />Stormwater from the parking lot, Pacific Pride and <br />Final Plan <br />from discharging to North Creek during the transition from <br />Nelson fuel islands all flow to a structure with an <br />the interim plan, to construction, and to regular <br />isolation valve. Nelson closed the isolation valve in <br />operations? Include any pertinent details on the plans. <br />April 2023, after receiving the violation notice. No <br />stormwater has been discharged to the downstream <br />system since April 2023. The valve will remain <br />closed for the "interim plan" and will be removed in <br />the "final plan". Currently, Nelson monitors the <br />water depth in the OWS vaults daily and has a <br />commercial pumping service dispose of the fluids on <br />an as -needed basis. These actions have been in <br />place since April 2023. The final design changes the <br />piping to separate the parking lot and fuel island <br />drainage basins, both systems still flowing through <br />OWS vaults. Only drainage from the parking lot will <br />discharge to the downstream storm. <br />11 <br />Stormwater <br />- <br />The stormwater system shall be cleaned by the owner and <br />Acknowledged. A note is added to the plans in this <br />System <br />then inspected by the City prior to resuming offsite <br />regard. <br />Cleaning <br />discharge following the permanent fix. A work <br />order/invoice shall be submitted to the City. This will be a <br />condition of the Public Works Permit. <br />Page 9 of 10 <br />