Laserfiche WebLink
summarize historical activities and conditions, and determine possible <br />impacts to groundwater from CKD disposal on-site. <br />• The analyte list should be comprised of, at a minimum, the same suite as <br />the historical data submitted. Focus of this groundwater sampling will be <br />on the inorganic analytes and standards as contained in CDPHE <br />Regulation 41 - Basic Standards for Groundwater - Tables 1-4. Sampling <br />protocols, analyses, and MDLs should be selected accordingly. <br />• Radiologic analysis may be limited to gross alpha and beta. <br />• The following parameters will not be necessary: biologics, phenol, <br />chlorophenol, color, corrosivity, foaming agents, asbestos, and odor. <br />• The existing monitoring wells should be properly purged at least once <br />prior to sampling to insure representative samples as they have been <br />inactive for quite some time. <br />• Field parameters consisting of at least pH, temperature, conductivity and <br />static water levels in the wells should be collected and reported for all <br />sampling events. <br />If the level of contaminants in groundwater is shown to be below applicable benchmark <br />levels, monitoring may be reduced or discontinued. If groundwater is shown to be <br />impacted above applicable benchmarks, additional monitoring, plume delineation, and <br />perhaps remedial actions may be required to release the site in accordance with 3.17 of <br />the Construction Materials Rule. <br />If you have any questions, please contact me at (303) 866-4069. <br />Sincerely, <br />?;W- X/- <br />Eric Scott <br />Environmental Protection Specialist <br />Cc: Tony Waldron, Senior Environmental Protection Specialist