Laserfiche WebLink
� M <br /> GEOMATRIX <br /> Ms. Amy Terrell <br /> California Regional Water Quality Control Board <br /> January 30, 2002 <br /> Page 2 <br /> Existing Shallow Wells Proposed Shallow Wells <br /> MW-12 TW-B (MW-26) <br /> MW-13 TW-D (MW-27) <br /> MW-14 TW-F (MW-28) <br /> MW-23 MW-23 <br /> MW-25 MW-25 <br /> Existing Intermediate Proposed Intermediate <br /> Wells Wells <br /> MW-22 MW-22 <br /> MW-24 MW-24 <br /> Because MW-12, MW-14, TW-A, and TW-C are within lots that Bridgeport plans to develop, <br /> they need to be destroyed before development is completed. Monitoring well MW-13 and <br /> temporary wells TW-E and TW-G are close to and provide data similar to TW-B, TW-D, and <br /> TS-F, respectively, and do not appear to be necessary for long-term monitoring of <br /> groundwater. As such,we propose to obtain well destruction permits from the San Joaquin <br /> County Environmental Health Department and destroy MW-12, MW-13,MW-14, TW-A, <br /> TW-C, TW-E, and TW-G. TW-B, TW-D and TW-F would be renamed MW-26, MW-27, and <br /> MW-28 and would be incorporated into the long-term monitoring well network. Intermediate <br /> zone monitoring wells MW-22 and MW-24 (not shown on Figure 1) are adjacent to MW-23 <br /> and MW-25, respectively. No change is proposed for intermediate zone wells. <br /> Geomatrix hereby requests the Regional Board's approval to replace the existing monitoring <br /> network with the proposed monitoring well network. Upon receipt of your approval,we will <br /> coordinate with representatives of Bridgeport, apply for permits with the San Joaquin County <br /> Environmental Health Department to destroy MW-12, MW-13, MW-14, TW-A, TW-C, TW- <br /> E, and TW-G, and work with Bridgeport to finish well heads for MW-26, MW-27, and MW- <br /> 28 consistent with the proposed development. Ideally, we would like the Regional Board's <br /> approval for this request before March 1, 2002, so that the new monitoring network will be in <br /> place for the first trimester 2002 monitoring event scheduled for March 2002. <br /> If you have any questions or comments on this proposal, please call either of the undersigned. <br /> Sincerely yours, <br /> GEOMATRIX CONSULTANTS, INC. 2 <br /> Timothy G. Souther, REA II David M. Bean, R.G. <br /> Principal Environmental Scientist Senior Hydrogeologist <br /> 5352J3.d« <br />