Agenda - Council - 10/22/1985 - Laserfiche WebLink

Home

Mr. Daniel A. Comeau Sept ember Z5, Page lhirteen telephone calls with public officials. No interviews have been conducted with past or current employees of involved generators or transporters. lhe findings to date reveal generic categories (e.g., solvents, acids, etc.) but not specific identifiable compounds. It is believed that the list of currently analyzed water quality parameters is sufficient to address the generalized categories known at this time. Subsequent findings which may significantly affect the monitoring program will be shared with MPCA. Domestic Well Sampling 36. pages I9-20. it is understood from a discussion with MPCA staff that "routine" monitoring is intended to apply to monitoring during the Remedial Investigation and does not imply long-term monitoring beyond the Remedial Investigation. It is anticipated that groundwater monitoring wells will be sampled three times. Modifications or additions to the program will be based on the findings of previous water quality data as it becomes available. The water quality data and modifications or additions will be submitted to MPCA as the need arises. Residential wells have been sampled in the past by MPCA. Residential wells were also sampled during Sampling Event No, 2 (August 28-30). It is anticipated that the Remedial Investigation will be completed within 120 days as required by the Consent Order. If it becomes necessary to extend the Remedial Investigation period because of the need for further studies, it is proposed that additional sampling events be considered on a 6-month basis at selected representative on-site and off-site groundwater monitoring wells and residential wells. Surface Water Sampling 37. Page 20. Modifications or changes to the surface water sampling program will be determined based on findings of water quality analysis. Water samples were collected from the surface water monitoring locations during Sampling Event No. I (July 22-28) and Sampling Event No. 2 (August 28-30). It is possible that surface water sampling may be discontinued at some locations dependent on the findings of the water quality data such as repeated findings of no water quality impacts attributable to the landfill. Additional monitoring locations may be added if the need arises. Available water quality data is routinely submitted to MPCA when it becomes available. Any modifications or changes to the proposed program will be discussed with MPCA staff and will be documented by letter. · oject Schedule Page 21. WMMI is striving to complete the Remedial Investigation in Eompliance with provisions of the Consent Order. The Consent Order states that the Remedial Investigation Final Report shall be submitted within 120 days of MPCA Director's approval of modification of the RI Work Plan