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<br /> 1940 (D) 1953 (N) 1974 (D) 1985 (W) 1991 (W) 2003 (N) <br />Tennis <br />Court / <br />Park Site is <br />undeveloped <br />Site is <br />undeveloped. <br />Possible <br />buildings/grading <br />on the parcels to <br />the south. <br />Site is <br />undeveloped. <br />Parcels to the <br />south have <br />buildings in <br />place. <br />Tennis court <br />in place. <br />Wetland <br />visible along <br />the north <br />and eastern <br />sides. <br />Tennis court <br />area appears <br />unchanged <br />Tennis court <br />area <br />appears <br />unchanged. <br /> <br />Precipitation Records <br />The MN Climatology Working Group’s Precipitation Worksheet (See Figure 4) provided a multi-month <br />score at the high end of the normal range (monthly score = 14), but the July (most recent complete <br />month) rating was very wet. At 5.94 inches, it was much higher than the 70th percentile amount of 5.09 <br />inches. The rainfall for the month of August was much higher than normal. <br /> <br />Wetland Delineation Results and Discussion <br />The tennis court and park area were constructed on fill material deposited in a mapped wetland <br />between 1974 and 1985. The transect location was selected where the upland point was placed in the <br />park area and the wetland point placed at the bottom of the fill slope. The transect points and wetland <br />boundary are shown in Figure 3. Johanna Marsh Park Wetland Map. The wetland delineation data forms <br />are in Appendix A. <br />Upland Point <br />The sample point was located in turf grass between the tennis court and landscape plantings northeast <br />of the small parking lots. <br />Vegetation: Poa pratensis (Kentucky bluegrass) was the most prevalent dominant species with <br />Digitaria sanguinalis (crabgrass) also abundant. The dominant species in the tree and sapling/shrub <br />stratum were located in the area near the wetland boundary at the top of the slope, so they were <br />included in the vegetation analysis. These were either FACW (Fraxinus pennsylvanica / green ash), FAC <br />(Populous deltoides / eastern cottonwood), or NI (No Indicator - Rubus occidentalis / black raspberry). <br />The vegetation did not pass any hydrophytic vegetation indicators. <br />Soils: The surface soil was a very dark grayish brown with sandy loam from 0-5 inches and <br />compacted sandy clay loam 5-11 inches below grade. The layer from 11-14 inches was a very dark gray <br />sandy clay loam with 10% dark yellowish mottling and small gravel. The remainder of the soil column <br />was dark grayish brown in color. A silty clay with 40% dark yellowish brown mottles extended from 14- <br />23 inches. A sandy clay with small gravel, some bituminous and 20% mottles extended from 23-27 <br />inches. The hand auger hit a restrictive layer of bituminous at 27 inches terminating the sample. <br />Although indicators of saturated soils (mottles) were present, the soil did not meet any hydric soil <br />indicators. <br />City of Arden Hills - Johanna Marsh Park Tennis Court Rehab Page 4 of 24