FIELD DOCUMENTS - Laserfiche WebLink

Home Browse Search

Quarterly Monitoring Report- Fourth Quarter 2014 Page 8 OAK RIDGE WINERY WKA No. 6364.07 December 18, 2014 ' affected by the transformation; therefore, the untransformed data appear to be sufficiently close to a normally distributed data set for a parametric ANOVA evaluation. ' 8.0 SUMMARY The Fourth Quarter 2014 groundwater monitoring and sampling activities were conducted at the Oak Ridge Winery on December 9, 2014. Activities consisted of measuring water levels, collection of groundwater samples, and analysis the groundwater samples for constituents of ' concern. Groundwater elevations (GWE) based on the DTW measurements ranged from +25.01 feet msl in MW2 to +41.86 feet msl in MW3. The direction of groundwater flow on the date of monitoring event was predominantly to the southwest and had a calculated hydraulic gradient of 0.02. Nitrate was not detected in any groundwater sample collected from the monitoring wells during the fourth quarter of 2014. Groundwater pH was within the specified EPA secondary MCL in ' three of the four water samples. The sample from MW3 showed a pH of 6.38. This data indicates that pH is not generally trending downward as seen during previous quarters. All other parameters were shown to be within specified groundwater criteria. With the exception of potassium being below the laboratory reporting limits in MW3, TKN, ammonia, and potassium were detected in the samples collected. Although TKN, ammonia, and potassium do not have ' specified goals, their detection in the water samples is indicative of treated discharge from the process wastewater treatment system entering the ground water system. TDS trends appear relatively stable and flat in all monitoring wells, with the average concentrations below the water quality criteria. ' The single-parameter ANOVA analyses indicated a significant difference between the mean concentrations for constituents detected in groundwater samples collected from each monitoring well. The differences between F and F-crit validate the conclusion that ammonia, potassium, total kjeldahl nitrogen, and total dissolved solids are not uniformly distributed in shallow groundwater. The single-parameter ANOVA analyses indicated no significant difference between the historical and current reported concentrations of pH and nitrate.