2007-04-03_REVISION - M1983141 - Laserfiche WebLink

Home Browse Search

Mr. Thomas A. Schreiner April 29, 2007 Page 3 Table 1 -Colorado Agricultural Groundwater Standards Parameter Standard Aluminum (AI) 5 mg/L Arsenic (As) 0.1 mglL Beryllium (Be) 0.1 mg/L Boron (B) 0.75 mg/L Cadmium (Cd) 0.01 mg/L Chromium (Cr) 0.1 mg/L Cobalt (Co) 0.05 mg/L Copper (Cu) 0.2 mg/L Fluoride (F) 2 mg/L Iron (Fe) 5 mg/L Lead (Pb) 0.1 mg/L Lithium (Li) 2.5 mg/L Manganese (Mn) 0.2 mglL Mercury (Hg) 0.01 mg/L Nickel (Ni) 0.2 mg/L Nitrite (N02-N) 10 mg/L Nitrite&Nitrate (N02+N03-N) 100 mg/L Selenium (Se) 0.02 mg/L Vanadium (V) 0.1 mg/L Zinc (Zn) 2 mg/L pH 6.5-8.5 Source: CWQCC, 2005. Regulation No. 41, Table 3. Reaorting of an Exceedance When an exceedance of a parameter is identified by sampling, MRV will report the exceedance to DRMS within 30 days of the receipt of the results of the water quality analysis that identifies the exceedance. The report shall contain the results obtained in the water quality monitoring round, an evaluation of the results, and a proposal for mitigation of the exceedance. Mitigation of an Exceedance The method of mitigation of an exceedance will be determined at the time of the identification of the exceedance. The mitigation will be specific to the location of the monitoring point at which the exceedence was identified, the parameter for which the exceedance was identified, and the potential for environmental impact as a result of the exceedence. CONSTRUCTION OF WELLS Comment 3. In response to Rule 3.1.7(7)(b)(vii), please clarify the time schedule for implementation of re-construction of up-gradient Iaell (MW-1) and construction of down-gradient well (MW-5).