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Comprehensive Stormwater Management Plan Northeast Lino Lakes Drainage Improvement Project WSB Project No. 2929-79 Page 4 1.3.4 Special Area Management Plan Prepared for the City of Lino Lakes and the RCWD, this Special Area Management Plan (SAMP) facilitates the U.S. Army Corps of Engineers’ Clean Water Act Section 404 permit evaluations within the subwatersheds addressed by the SAMP and prioritizes future restoration projects and management of aquatic resources. Areas within the CSMP study area were identified as having medium to high restoration potential. It also recognized that the existing ACD 55 and ACD 72 tile systems are ineffective for traditional urban runoff volumes and were preliminarily scoped for wetland restoration and volume credits for future development. The Peltier RMU ACD 72 and ACD 55 tile systems scored second and third, respectively, of all preferred projects for their roles in urban runoff management and a conceptual restoration plan was developed. Due to the uncertain nature of future development, the SAMP suggested to wait until a more-concrete development plan was presented for the area (Lino Lakes 2010). 1.3.5 Regulations and Policies A great number of rules, ordinances, regulations and policies are expected to govern the development of land within the CSMP study area. The following is not intended to be an exhaustive list, but provide a summary of the prominent stormwater and flood control policies. 1.3.5.1 Main Street Shoppes RCWD Permits #13-029 and #13-040 In 2013, a landowner within the CSMP study area applied for a RCWD permit to develop an 18.5-acre lot located at the northeast corner of Main Street (CSAH 14) and Otter Lake Road in Lino Lakes. Under this permit, stormwater treatment was provided for the street development and a future commercial site. RCWD informed the applicant that the downstream drainage system (ACD 55 Branch 8) was constrained and under 2008 Rule C.5(d), adverse impact requirements must be met by one of the following methods: Meet the volume control standard of 1.1-inches over the proposed impervious surface (Rule C.6) and show no increase in runoff volume for the 2-year 24-hour event (6,511 cubic feet per Rule C.5(d)); or Reduce the peak runoff rate for the 2-year 24-hour design event to 0.03 cfs, as determined by the District Engineer (2008 Rule C.5(d) and Houston Engineering 2013), from the proposed 1.5 cfs. This would result in a nearly 99 percent reduction in peak rate from the existing runoff rate of 2.5 cfs. The developer chose to meet the volume control option and designed a water reuse system to irrigate 0.65 acres of existing agricultural land with water from the Nationwide Urban Runoff Program (NURP) pond, installed for rate control. The irrigation pool volume was established between elevations 908 and 911, to be drawn down over three weeks of irrigation during a period without rainfall. This volume (6,607 cubic feet) is equivalent to the increase in volume generated from the 2-year 24-hour design event. As companion permit to RCWD #13-029, #13-040 approved the development of the present-day McDonald’s site on the commercial site and used the volume reduction from Permit #13-029 to offset the proposed impervious surface. 1.3.5.2 RCWD Resolution #2015-31 The RCWD Board of Managers approved Resolution #2015-31 on September 23, 2015, recognizing the limitations on the existing regional drainage system in the Northeast Lino Lakes area and affirming that should the proposed projects be constructed as proposed, the RCWD would be able to issue permits in line with their Rules and standards based on this CSMP. 1.3.5.3 City of Lino Lakes Overlay District The City of Lino Lakes will update Chapter 1011: Stormwater, Erosion, and Sediment Control of the City Code to reflect the requirements of this CSMP, define the Northeast Drainage Overlay District, and the regulations and policies for development within it.