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> KLEINI= E € 1), ER The seven (7) groundwater samples will be submitted to a State certified laboratory and analyzed for the following analytes, which includes the National Pollution Discharge Elimination Standards (NPDES): • Total Suspended Solids (TSS) 1 • Settleable Solids • Biochemical Oxygen Demand (BOD) • Inorganic Chemical Metals (Aluminum, Antimony, Arsenic, Barium, Beryllium, Cadmium, Chromium, Lead, Mercury, Nickel, Selenium, Silver, Thallium, Vanadium) • Hexavalent Chromium • Low-Level Mercury • General Mineral (Alkalinity, boron, calcium, carbonate, chloride, copper, aggressive index, bicarbonate, fluoride, foaming agents (MEAS), hydroxide, iron, Langlier index, magnesium, manganese, nitrate, nitrite, pH, potassium, sodium, SAR, electrical conductivity, sulfate, total dissolved solids, total hardness, zinc) • Total Coliform • Total Phosphorus • Oil and Grease • Cyanide • Nitrate as Nitrogen • Total Kjeldahl Nitrogen (TKN) • Volatile Organic Compounds (VOCs) • Polynuclear Aromatic Hydrocarbons (PAHs) • Organophosphate Pesticides (Chloryrifos, diazinon) • Organochlorine Pesticides The samples will be analyzed on a normal laboratory schedule requiring approximately 12 working days for completion. 3.5 GROUNDWATER ELEVATION MONITORING Subsequent to the single sampling event, an automated pressure transducerldata logger will be installed in each of the piezometers to record water levels over time. Kleinfelder will visit the piezometers on an approximately monthly basis to download the data gathered and to insure that the transducers/data loggers are operating properly. At this time we plan to monitor the groundwater elevations for at least twelve consecutive months. 79658.G W 1/ST07R790/F B:lv Page 6 of 9 ©2007 Kleinfelder October 2, 2007