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<br /> < 'I- < ~ 69 <br /> L TRINITY ENGINEERING TESTING CORPORATION <br /> p.o. Box 2234 Austin, Texas 78768 - Phone 512/926-6650 Fa.x 512/926-3312 <br /> Apri13, 1996 <br /> The City of San Marcos <br /> Environment and Engineering Department <br /> 630 East Hopkins <br /> San Marcos, Texas 78666 <br /> I Attention: Mr. Stephen Jenkins, P.E. <br /> Reference: Professional Engineering Services <br /> Geotechnical Investigation Proposal/Contract (Revised) <br /> Wastewater Treatment Plant Expansion <br /> San Marcos, Texas <br /> : . <br /> Dear Mr. Jenkins: <br /> I am pleased to submit this proposal for the above project. The scope of services and budget are <br /> based on the Black & Veatch requests contained in a document entitled "Attachment A to <br /> Professional Services" that was faxed to us on March 4, 1996. Since that time, I have had extensive <br /> discussions with representatives of Black & Veatch concerning significant alterations and deletions <br /> to their requests. The scope of work outlined in this proposal reflects the agreed upon scope and <br /> method of work. In brief, the project is to consist of ten (10) new structures at the existing San <br /> Marcos WWTP. Five (5) structures will be located about 8' to 2.1' below existing grade while the <br /> remaining five (5) structures will be located at or near existing grade. As requested, subsurface <br /> exploration \ViII consist of eleven (11) core borings advanced to depths ranging from 25' to 45' below <br /> existing grade. A summary of the field exploration program is contained in Table 1. <br /> .- TABLE! <br /> Approx. Floor Depth Number Depth of <br /> Structure below Existing Grade of Borings Borings <br /> Septic/Grease Receiving -20' 1 40' <br /> Headworks At Grade 1 25' <br /> Primary Clarifiers +1' 2 25' .each <br /> Primary Sludge Pumping Station +1' 1 25' <br /> Aeration Distribution +1' 1 25' <br /> Chlorine Contact Basin -8' 1 40' <br /> Effluent Filters -13' 2 45' each <br /> RearationÆffluent Pumping Station -21' 1 45' <br /> Discharge Structure 10' to 20' I 25' <br /> CELEBRi\..TING 50 YEARS OF SERVICE IN 1995 <br />