SITE INFORMATION AND CORRESPONDENCE

Home Browse Search

Former Fayette Manufacturing Page 2 of 2 7675 West Eleventh Street July 14, 2014 Tracy, California 95304 • All wells that are obstructed, have unknown construction, or are located in an area of known or suspected contamination are to be destroyed by removing all the contents of the well [well casing (except steel conductor casing), screen, filter pack, grout sealant], the cleared borehole is then to be sealed with neat cement from the bottom upward to the depth of three to five feet below grade. • Wells that have laboratory data from the last groundwater sampling event that report non-detectable concentrations of contaminants of concern and with acceptable laboratory detection limits, and are not in areas of known or suspected soil contamination, may be destroyed by pressure grouting from the bottom upward, while leaving the well casing in place. [At least 25 pounds per square inch (psi) of liquid grout pressure must be applied for at least ten minutes.] The top three feet or more of the well shall be drilled out with an auger that is at least one foot larger in diameter than the auger originally utilized to install'the well, and the soil around the cut-off casing removed to the depth of an additional six inches below the new 'top' of the cut-off casing. The grout sealant shall spill out of the top of the well casing to form a mushroom cap seal with at least twelve inches of neat cement grout poured six inches above and six inches below the top of the cut-off casing. • All groundwater displaced to the surface during grout installation shall be pumped out of the excavation to allow for EHD inspection and verification that the well has been properly destroyed. Contaminated groundwater pumped out of the excavation shall be containerized for proper disposal. Submit an EHD Well and Boring Permit Application form along with the Master File Record form, Licensed Contractor's Declaration form and appropriate fees for each parcel within thirty days of date of this letter. The permit fee for the destruction of each well is $125, along with a $375 Inspection Activity fee. A review of the site records indicate that fourteen wells currently are installed at this site. A fee of $2,125.00 (14 x $125 + $375) will be required for the well destruction permit. (Please note that on 01 August 2014, the EHD fee-rate will increase to $130 per well; the total fee will be $2,210.00.) The wells must be destroyed within sixty days of the date of this letter, and a brief well destruction report containing the manifests from the waste disposal must be submitted to this agency within thirty days of completing the well destructions. If you have any questions or concerns regarding this letter, please contact Vicki McCartney at (209) 468-9852, or by email at vmccartney@sjcehd.com. Sincerely, i Victoria L. McCartney, REI-IS Nuel C. Henderson, Jr., PG Senior Registered Environmental Fleaith Specialist Engineering Geologist i c: Ms. Jeanne I-lomsey, PE, Cardno ATC, 1117 lone Palm Avenue, Suite 2018, Modesto, California 95351 Ms, Cori Condon PG, CHg, California Regional Water Quality Control Board Central Valley Region, 11020 Sun Center Drive, Suite 200, Rancho Cordova, California 95670