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221 <br />are connected to the sanitary sewer system and have been evaluated for I/I susceptibility and <br />repair. Considering 99% of the sewered services have been constructed after 1970, and 37% of the <br />sewered services have been evaluated, with only 0.1% of those evaluated had an I&I issue, the data <br />suggests that the remaining 63% of the services should only anticipate 5-10 properties have an I&I <br />issue that has not been resolved. This amounts to an estimated average annual flow of 0.43 MGY <br />or 0.001 MGD. <br />Table 64 – Pre and Post 1970 Residential Homes <br />City Wide Number <br />of <br />Existing Homes <br />Existing Homes <br />Connected to Sewer <br />System <br />% Sewered Homes <br />Evaluated for I&I <br />Pre-1970 353 38 50% (19) <br />Post- <br />1970 <br />8,974 4,834 37% (1769) <br />Ordinance 92-05 prohibits the connection of sump pump, rain leaders, or passive drain tile from the <br />sanitary sewer system and requires those that exist be disconnected. The City of Ramsey has <br />adopted the Minnesota State Building Code, which states that drainage systems shall discharge into <br />an approved sewer system or to daylight (§R405.2.3) and storm sewer systems shall not drain into <br />sewers intended for sanitary sewage only (§4715.2700). The City of Ramsey interprets that these <br />systems must drain to daylight only unless storm sewer is available on-site. The City of Ramsey <br />will explore the need for such ordinances if it is determined the City is not meeting the established <br />I/I goal. <br />The City applied for $25,250 in matching grant funds from the 2014 State Bond Fund Municipal <br />Inflow & Infiltration Grant program though the Met Council Environmental Services to perform <br />needed I&I improvements. The grant was awarded and this project was completed in 2016 <br />where multiple castings were adjusted and chimney seals were installed to prevent I&I at those <br />structures. A lift station and a manhole were also rehabilitated to seal the structure by coating <br />the insides of the structures. <br />The City also has a program in place that notifies residents if their water meter runs <br />continuously. A letter is sent to the resident alerting them that there may be a possible water <br />leak inside their home and includes a toilet dye strip and informational flyer on how to perform <br />a water leak test and how to read their water meter.