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Regular Planning Commission Meeting Minutes – Wednesday, August 7, 2013 Page 3 Ms. Bloom noted that the swale on Eldridge addressed by Ms. Merrill was a result of when the 92 church properties were developed approximately twenty (20) years ago, and given the large 93 amount of flat area, had been a chronic issue for staff. 94 Under the City of Roseville’s current Stormwater Management Plan, Ms. Bloom advised that any 95 additional impervious surface was required to be addressed with volume reduction mitigation. Ms. 96 Bloom noted that the real issue was the area immediately adjacent to the catch basin, with water 97 ponding. With this proposed development, Ms. Bloom advised that the church would be required 98 to install a biofiltration basis as part of the building, which would include trench, rock and drain tile 99 to connect to the existing storm basin in that area. Ms. Bloom advised that the improvement 100 would be entirely on church property as a grassy area and maintained 100% by the church; and 101 opined that this mitigation should serve to eliminate the bog area in adjacent back yards. Ms. 102 Bloom advised that a solution was in process, with her reviewing plans last week, which seemed 103 to be sufficient to mitigate their existing and proposed hard surface volumes. 104 Member Murphy questioned if, at the end of the three (3) year period when the structure was 105 removed, if the impervious surface would remain. 106 Ms. Bloom responded that it would probably not remain. However, Ms. Bloom reiterated that this 107 stormwater management solution would continue to help in the long-term; and would operate 108 effectively like a farm field drain tile (French drain), with stormwater soaking into the ground 109 versus sitting above ground. 110 At the request of Member Murphy, Ms. Bloom advised that this proposed mitigation specific to 111 this project will not address the larger drainage issue, as it was only required to address those 112 issues created by the proposed permit. 113 In addressing the overall drainage problems in this area, Ms. Bloom advised that there were 114 sixteen (16) areas south of Highway 36 that needed mitigated. Ms. Bloom noted that a similar re- 115 use system was being proposed for Acorn Park as part of the Park Renewal Program. Ms. Bloom 116 noted that it was a challenge to mitigate the drainage issues for this area without taking out 117 houses; with a pond site overwhelming the area; thus the reason for breaking the area into sub- 118 watersheds. Ms. Bloom noted that something similar to this had been accomplished through 119 volunteers at Midland Hills and installation of rain gardens. 120 If the Interim Use is granted, Member Murphy sought assurance, with Ms. Bloom confirming it, 121 that the proposed project would not make the problem worse tomorrow than it already is. 122 Mr. Lloyd referenced the Site Plan (Attachment C), noting that the original intent was for a six foot 123 (6’) separation between the existing building and temporary structure. However, Mr. Lloyd 124 advised that building code requirements necessitated the separation would actually need to be 125 thirty feet (30’). 126 At the request of Member Daire, Mr. Lloyd advised that the revised code requirements did not 127 materially change staff’s recommendation for approval. Mr. Lloyd noted that the proposed 128 structure still more than met required setbacks for permanent structures. 129 At the request of Member Daire, Mr. Lloyd advised that, with one exception, all other code 130 requirements for issuing an Interim Use had been met from staff’s perspective. The only 131 outstanding requirement addressed by Mr. Lloyd was included as a condition for the applicant to 132 provide a stormwater management plan to address those issues previously noted by City 133 Engineer Bloom for the additional impervious surface; and reiterated that the Use was only 134 permitted for three (3) years. 135 Applicant Brent Thompson; Representing HIH Montessori 136 Mr. Thompson advised that he had nothing to add beyond staff’s report and presentation. 137 Mr. Thompson clarified that HIH currently operated out of the Corpus Christi Catholic Church on 138 Fairview Avenue; and offered a unique school model that continued to experience growth thus 139 creating the need for an interim building that would be torn down after the three (3) years. Mr. 140 Thompson noted ongoing discussions with the City’s Building Official and their intent to meet all 141 City Code requirements; and ultimately providing a Site Plan and Building Plan, as well as 142