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1.3 Credits <br />Storm Water Utility Fees may be adjusted under the conditions stated below. <br />It shall be the responsibility of the property owner to provide justification for <br />the fee adjustment. Credits must be applied for by November 1st of the year <br />prior to the year in which the credit is to be considered. An operation and <br />maintenance agreement between the parcel owner and the City is required <br />prior to receiving a credit on the Storm Water Utility Fee. <br />Single Family Residential <br />Residential Rain Garden — Single family residential parcels can receive a <br />50% credit for implementation and maintenance of a residential rain garden <br />or comparable best management practice (BMP). The rain garden or BMP <br />must accept runoff from public property and reduce the amount of runoff <br />entering the storm system, and the City must review and approve the <br />residential rain garden or BMP prior to receiving a credit on the Storm Water <br />Utility. <br />Industrial, Institutional, Commercial, and Multi - Family <br />The following credits can be applied for only by Industrial, Institutional, <br />Commercial, and Multi- Family property owners. A maximum 50% credit <br />can be obtained for each parcel, consisting of a maximum 25% credit for rate <br />control practices and a maximum 25% credit for water quality /volume <br />control practices. <br />Storm Water Rate Control — An individual parcel may receive a credit, if it <br />can be demonstrated that the individual parcel has storm water management <br />facilities in place that reduce peak flow rates to the predevelopment 100 year <br />rate. A maximum fee reduction of 25% can be obtained for this practice. <br />Water Quality and Volume - Parcels having facilities constructed specifically <br />for the purpose of phosphorous removal and /or volume control may be <br />eligible for a credit. The credit will be based on the volume and estimated <br />phosphorus removal efficiency of the facility in accordance with Table 2. <br />Table 3Table 2B <br />Water Quality and Volume Control Credit <br />On -site Volume <br />Control Depth <br />(inches) <br />Estimated Annual <br />Phosphorous <br />Removal ( %) <br />Credit ( %) <br />0.5 <br />40 <br />10 <br />1.0 <br />60 <br />15 <br />2.0 <br />92 <br />23 <br />2.8 <br />100 <br />25 <br />The property owner shall provide the calculations demonstrating the <br />phosphorus removal efficiency and /or volume reduction of the facility. The <br />total credit for water quality and volume shall be equal to the percentage <br />