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• • Eagle Brook Church Review Page 5 December 4, 2003 City of Lino Lakes, Minnesota 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 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 City of Lino Lakes. 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 system and Design Report have been reviewed by TKDA and the Anoka County Public Health Specialist. The system is acceptable and has been proven successfully in similar applications in Minnesota. In addition, the system as proposed exceeds design requirements. However, the following additional comments are noted as follows: 1. The sewer line from the building line to the septic tanks should be insulated to assure that freezing of the line will not occur. 2. An appropriate barrier must be constructed around the treatment area and drainfields for protection from off -road vehicles and snowmobiles. Final Plans and Specifications for the treatment system must be signed by a Registered Professional Engineer. Water Supply In accordance with the City's Comprehensive Plan, the church is located in an area designated as rural, and the extension of water into this area is not anticipated in the immediate future. An on -site new well is therefore necessary, and shall be subject to the review and approval of the Minnesota Department of Natural Resources (DNR). The DNR has stated that if appropriated water exceeds 10,000 gallons per day or one million gallons a year, a DNR permit will be required. Under the development as proposed, estimated water usage is proposed to be 2800 gallons per day with a peak usage (large events), of 4200 gallons per day. The DNR has also recommended the use of lake water to meet irrigation needs. It is likely that a deep aquifer such as the Prairie du Chien/Jordan would be utilized, and any impacts to wells on neighboring properties would be unlikely.