Topographic Map. Station 5026569HCN01 was visited on (4) sampling events in January, April, July and October 2019 to complete baseline monitoring at this rotating station. The site was not sampled in January, July or October 2019 because the site lacked available water due to frozen conditions and flow. Core measurements were completed and water samples were collected and analyzed for nutrients and additional parameters including alkalinity, chloride, sulfate, total suspended solids, Total Coliforms and E.coli during the monitoring visit in April. Table 61 provides basic statistics for laboratory and core field parameters. Table 61 Station ID 5026569HCN01 Parameter Units # (n) Samples Min. Max. Avg. Threshold Value % (n) Exceedance Dissolved oxygen (DO) mg/l 1 3.78 3.78 3.78 5.0 100 pH None 1 6.07 6.07 6.07 6.0-9.0 0 Specific conductance uS/cm 1 93.5 93.5 93.5 Temperature, water deg C 1 2.9 2.9 2.90 31.7 0 Turbidity NTU 1 1.45 1.45 1.45 0.84 100 Alkalinity, total mg/l 1 29.5 29.5 29.5 Chloride mg/l 1 11.2 11.2 11.20 Sulfate mg/l 1 1.58 1.58 1.58 Total suspended solids mg/l 1 2.1 2.1 2.1 Ammonia-nitrogen mg/l 1 0.091 0.091 0.0910 Kjeldahl nitrogen mg/l 1 1.1 1.1 1.1 0.33 100 Phosphorus mg/l 1 0.085 0.085 0.085 0.02875/0.075 100/100 Soluble Reactive Phosphorus (SRP) mg/l 1 0.025 0.025 0.025 Escherichia coli MPN/100ml 1 0.5 0.5 0.5 Total Coliform MPN/100ml 1 15.8 15.8 15.8 400 0 Parameters of notable concern include: • Turbidity value of 1.45 NTU • Kjeldahl Nitrogen (TKN) value 1.1 mg/L • Total Phosphorus value 0.085 mg/L • Dissolved oxygen value of 3.78 mg/L No temperature or pH values exceeded the established threshold criteria. The station had very low dissolved oxygen levels when visited in April. Based on the EPA reference criteria for Ecoregion VII sublevel ecoregion 51, the April sample was above the threshold values for turbidity, Kjeldahl nitrogen and Total Phosphorus. The Total Phosphorus value also exceeded the State of Wisconsin standard of 0.075 mg/L. Macroinvertebrate and fish sampling was not completed at station 5026569HCN01 due to site conditions present. Water quality at this station should be considered very poor. The natural hydrology of this area has been severely altered by historic drain tiling and ditching. The station is a man-made drainage ditch of unknown age that serves to relay water from upstream property owners. The ditch also affects the hydrology of forested wetlands on the tribal parcel. Honey Creek Watershed RB4 station 1259400HCN01 is assoc...
Topographic Map. The topographic base implemented in the geodatabase is a 1998 CTR (CARTA TECNICA REGIONALE) map at 1:10000 nominal scale provided by the cartographic web service of the Tuscany Region (xxxx://xxx000.xxxxxxx.xxxxxxx.xx/geoscopio/cartoteca.html) (Fig.1-5). Figure 1-4 Landslide Inventory Map (LIM) around the city of Volterra. Figure 1-5 Zoom of the topographic map at 1:10000 scale in the city of Volterra.
