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Water Bodies allow GLWMO to construct a gate that could control the flow between. Grass Lake and West Vadnais Lake. Water level data has been collected on Grass Lake since 1965 by the Minnesota DNR The MPCA has collected some water quality data, but not enough to analyze any trends. There are several drainage areas within the Grass Lake subwatershed that do not meet the water quality treatment criteria shown in the water quality assessment (see Appendix E). However, these drainage areas (GL-2, GL-3, GL-4W, GL-7 and GL-8) are providing some treatment because there are small ponds or wetlands within the Grass Lake subwatershed. Overall, the Grass Lake subwatershed has sufficient treatment capacity for its management classification. There is not enough water quality data on Grass Lake to predict any trends or conduct any water quality modeling. 2. Lake Judy (DNR ID No. 62-81 P) Lake Judy is located in the southwest corner of the City and drains directly to Lake Emily. Lake Judy has a surface area of 16 acres, a maximum depth of 5 feet, and a mean depth of 3 feet. The lake is used for fishing and canoeing and there is a City park on the north side of the lake that does not provide boat access. Water level data was only collected twice by the Minnesota DNR for Lake Judy, once in 1979 and once in 1981. The MPCA has collected water quality data as part of the Citizen Lake Monitoring Program, which collected Secchi disc data from 1980 to 1984. The water quality data that has been collected suggests that Lake Judy is a hypereutrophic system. Lake Judy receives runoff only from its immediate drainage area. Because of the Category III classification on Lake Judy, on a lower priority basis, the City look for opportunities to incorporate BMPs into municipal projects and encourage development/redevelopment projects to upgrade BMPs in drainage area LJ-1. 3. Martha Lake (DNR ID No. 62-64) Martha Lake is located in the central portion of Shoreview north of Highway 96 and just west of the City's maintenance facility on Victoria Avenue. The Minnesota DNR collected two water level readings in 1972. There has been no water quality data collected on Martha Lake. There are drainage areas within the Martha Lake watershed that do not meet the water quality treatment criteria according to the water quality assessment. However, these drainage areas do not drain to Martha Lake, they route to a County ditch or directly out of the City. Drainage area ML-4, which discharges out of the City, has storm water ponds and wetlands that provide some treatment. Drainage area ML-5 discharges to CD 1-7 and drainage areas ML-6, ML-7, ML-8, ML-9 and ML-11 all discharge to Marsden Lake. The City intends to upgrade the treatment system at their maintenance facility that drains directly to Martha Lake as part of the NPDES Industrial Permit SWPPP. Shoreview, MN Page 53 2rd Generation: Surface Water Management Plan March 2005