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• Eagle Brook Church Review Page 4 November 5, 2003 City of Lino Lakes, Minnesota south end of the property appears to connect with the County Ditch 72 system, but the grading plan is not entirely clear. There is no filling and/or impact to existing wetlands or flood plain proposed. Existing woodlands and buffer areas adjacent to Peltier Lake are proposed to be left naturally as is. The site grading plan also proposes to incorporate effective use of stormwater retention and infiltration methods to control runoff, provide stormwater treatment, and enhance groundwater infiltration in accordance with RCWD requirements. Bioretention areas in the proposed parking lots and rain gardens are proposed in the design to assist in meeting RCWD requirements for rate control and stormwater treatment. Further construction details must be provided in the plans._ In addition, it is recommended that groundwater levels at proposed infiltration basin locations be verified to assure the effectiveness of infiltration at those locations. Phosphorus discharge from the site will be reduced from the existing site condition, based on the phosphorus load modeling provided by the engineer. The change of the property from agricultural use alone will assist in reducing phosphorus discharge levels from the site. Additional comments received regarding phosphorus are being reviewed. A permit in accordance with the requirements of the NPDES (National Pollution Discharge Elimination System) in accordance with the most recently adopted requirements of the MPCA and the City of Lino Lakes shall be attained by the church, and shall be administered as required. Wastewater Treatment In accordance with the City's Comprehensive Plan, the church is located in an area designated as rural, and the extension of sanitary sewer into this area is not anticipated in the immediate future. An on -site treatment system is therefore necessary, and shall be subject to the review and approval of Anoka County and the Minnesota Pollution Control Agency (MPCA). Existing septic systems must be removed and/or abandoned in accordance with local and state requirements. An on -site wastewater treatment system is proposed, based on the Onsite Wastewater Treatment System Final Design Report and Specifications for Eagle Brook Church, dated October 8, 2003, by Eco Systems Engineering, Inc. The following comments are provided: 1. The treatment system proposed exceeds requirements. However, the system submitted for approval is considered a Performance (non - standard) system. According to Minnesota Rules 7080, the City of Lino Lakes, Anoka County, or appropriate permitting authority must adopt Minnesota Rule 7080.0179 in order for performance systems to be allowed. It should be verified that the appropriate agency or authority has adopted this rule. 2. The proposed system consists of a standard set of septic tanks, an intermediate pretreatment unit, and a final soil disposal system. The system would be a standard system if it did not have the intermediate pretreatment.