Agenda - Parks and Recreation Commission - 04/10/2014

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The first of the two Metropolitan Waste Control Commission (MWCC) interceptors that serve sanitary sewer flow from the City of Ramsey was constructed in 1984 to serve the City's T.H. 10 and Industrial corridor. This line, which serves the City's Mississippi River Sewer consists of a 30 -inch reinforced concrete pipe with a grade of 0.12%. The interceptor has a capacity of 15.4 cubic feet per second (cfs) or 9.97 million gallons per day (mgd). The second interceptor, known as the "Ramsey Second Interceptor Connection" was constructed in 1985. This line, which serves the City's Rum River Sewer District consists of a 30 -inch reinforced concrete pipe with a grade of 0.08%. The interceptor has a capacity of 12.6 cfs or 8.14 mgd. The sizing of these two interceptor sewers was calculated based on significant planning efforts by the City of Ramsey and other regional agencies beginning with reports completed in the 1970's. The federal "Clean Water Act" enacted in the 1960's initiated the regional planning effort. Under the authority and direction of Section 201 of the act, the MWCC completed facilities planning studies. Specific to the City of Ramsey, the MWCC established the Sewer Service District 3 boundary, which has an outer limit just south of Trott Brook. In the 1960's the MWCC was given the responsibility of regionalizing ownership and management of sewage treatment. Planning studies were done to evaluate the facilities in the north metro area, including the Anoka Waste Water Treatment Plant (WWTP). As a result of the studies, the Anoka Treatment Plant was expanded and the Champlin -Anoka -Brooklyn Center (CAB) interceptor was sized and constructed. Ultimately the Anoka Wastewater Treatment Plant was eliminated and all flow from the City of Ramsey was sent to MWCC's Metro (Pigs Eye) wastewater treatment plant. Based on the above-mentioned work, sewer planning for the City of Ramsey and other metro communities has been controlled by sewer capacity allocation. Ultimately, sizing for the City of Ramsey Page 3-2 Comprehensive Sanitary Sewer Plan - 2004 Prepared by Bolton & Menk, Inc.