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<br /> 42 <br /> McCULLEY, FRICK & GILMAN, INC. <br /> CONSULTING 5818 BALCONES DRIVE, SUITE 202 <br /> HYDROLOGISTS AUSTIN, TEXAS 78731 <br /> AND GEOLOGISTS (5~2) 371-1667 <br /> October 21, 1991 <br /> Mr. Stephen Jenkins, P.E. <br /> Director, Environment and Engineering <br /> City of San Marcos <br /> 630 East Hopkins <br /> San Marcos, Texas 78666 <br /> RE: AGREEMENT FOR ADDITIONAL GROUND-WATER MONITORING AND <br /> CONSULTING SERVICES, CITY OF SAN MARCOS LANDFILL <br /> Dear Mr. Jenkins: <br /> As per your request, I have prepared this letter agreement, which incorporates the scope and <br /> costs submitted to you via facsimile on September 26, 1991, estimated costs for meetings with <br /> the City and the Texas Department of Health in November, and hourly rates for other or <br /> subsequent consulting services. All terms and conditions contained in the Professional Services <br /> Contract between the City of San Marcos and McCulley, Frick & Gilman, Inc. (dated December <br /> 11, 1990) will apply except that the scope of services, compensation and Schedule of Charges <br /> (the latter to be used for Additional Services) are as described herein. <br /> MFG will collect ground-water samples from the six monitoring wells for split samples to be <br /> analyzed by the Texas Department of Health and by NET for the City. This resampling event <br /> will be conducted after comparison of the results of the TDH analyses and the analyses done for <br /> the City. The TDH will analyze the samples for volatile organics (Method 8240) and <br /> base/neutrals and acid extract ables, otherwise known as semi-volatiles (Method 8270). Samples <br /> from MW-I01 and MW-1O7 will be analyzed by NET for the full "background" list (Group 1,2,3 <br /> and 4 parameters) plus 8240 and 8270 organics. Wells MW-102, -103, -104 and -105 will be <br /> analyzed for the 8240 and 8270 organics and the Group 3 and 4 parameters to satisfy the semi- <br /> annual monitoring requirement for these wells. The costs for this sampling, analytical and <br /> reporting are included in the attached Cost Estimate. The costs for laboratory analysis and <br /> reporting for the samples collected during the intial sampling event (conducted September 30, <br /> 1991) also are included herein. <br /> MFG will prepare for and attend two meetings in November 1991: one with the City and its <br /> attorney and a second meeting to include the Texas Department of Health. The estimated costs <br /> are included in the attached Cost Estimate. Other consulting services related to the Landfill will <br /> be billed in accordance with the attached Schedule of Charges. <br /> OTHER OFFICES IN BOULDER, COLORADO AND SAN FRANCISCO, CALIFORNIA <br />