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Containerized soil cuttings and purge water left onsite must have information the following information marked on the drum in indelible ink: 1. Site Name &Address 2. Contact Nameand Phone 3. Contents of Drum 4. Accumulation start date Any contractor performing work of this type must have on file with the DER: 1. A valid C-57 license, and 2. A current Certificate of Insurance. Once permitted, the DER must be notified at least 48 hours in advance of the construction/ destruction activities. DER reserves its right to inspect field activities but a representative of DER need not be present prior to commencing the work provided the activity has been properly permitted and the DER has been sufficiently notified. The permit fee is derived from analysis of staff time for review and processing of the permit application and any site inspections, which may be conducted by staff during or subsequent to the installation of the monitoring wells. The DER fee is waived for installations within the incorporated city of Modesto. For monitoring wells installed in the unincorporated areas of the County, the DER permit fee is: $265.00 for the first boring/well included in the permit, and $53.00 for each additional boring/well. (Example: the permit fee for 3 monitoring wells would be $265.00+$53.00+$53.00 = $371.00). Proper abandonment of monitoring wells and borings is achieved by removing the well casing (if present), installing a bentonite basal plug at the terminus and backfilling the boring with a grout. A cement surface plug shall be placed at the surface of each well/boring. Prior to commencing boring/well destruction and for completion of boring/well permit, the contractor must: 1. Complete of the destruction section a monitoring well permit form. (For wells constructed and destructed within the same mobilization both the construction and destruction sections must be completed.) 2. Estimate the volume of grout expected to be necessary to destruct each monitoringwell prior to destruction, and 3. Describe the steps and methods used to destruct the well including the management of the casing and the installation method used to fill the well with grout. After field destruction activities are complete, the contractor must report to the DER: 1. Any planned vs. field work anomalies, and 2 The actual amount of grout used so as to evaluate the effectiveness of the well destruction. For additional information on boring/well construction, please refer to the Stanislaus County Guidelines for Sampling and Site Investigations (copies available upon request), or contact the Environmental Resources Department at (209) 525-6700. Page 1 2