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ESPEY, <br />'~ • HUSTON & <br />ASSOCIATES, INC. <br />-=:a;. Engineering & Environmental Consultants <br />January 15, 1988 <br />Mr. Robert Hererra, General Manager <br />,~~t ~ ; La Porte Area Water Authority <br />P. O. Box 1115 <br />La Porte, Texas 77571 <br />RE: LPAWA Surface Water Transmission Facilities <br />Corrosion Protection <br />Dear Mr. Hererra: <br /> <br />EH&A Job No. 10790-10 <br />" We are in receipt of your letter dated January 6, 1988 regarding the corrosion study <br />for the above project. As requested, we have contacted two local corrosion <br />protection firms, Corrpro Companies, Inc. and Kennedy Coating Inspection Services, <br />Inc. KCI is primarily involved in the inspection and maintenance of tanks and <br />_ offshore structures. Like PSG, Corrpro is a national firm, headquartered in Medina, <br />Ohio with a local office in Spring, Texas. We have no experience with Corrpro and <br />some with KCI. We will pursue obtaining price quotations from these firms if you <br />desire. <br />-- - As discussed at our last meeting, we suggest that LPAWA go forward with the <br />preconstruction field survey for a fee amount of $9,00.0. There is some concern that <br />,_ enormous portions of the fees quoted for the corrosion study are for transportation <br />and lodging. The travel expense is composed of one roundtrip airfare from Detroit <br />and 5 days of food and lodging for one person. Based on a generous estimate, this is <br />approximately 10% of the fee. The reason PSG was included in the project team at <br />the proposal stage was because their excellent qualifications assisted in our being <br />selected to work for LPAWA. We have had several occasions to work with them and <br />they have provided excellent service and technical assistance. ~ They have extensive <br />experience in the corrosion protection of water .transmission facilities. <br />The question has been raised about eliminating the corrosion study entirely. We <br />truly believe the study is adviseable given the following circumstances: <br />1. 20% of the line footage is near impressed current cathodic protection <br />systems which will be damaging to unprotected ferrous pipe and fittings. <br />2. No matter what pipe material is used, ferrous fittings will be used and <br />will require protection. <br />888 West Belt Drive South, Suite 200 Houston, Texas 77042 (713) 781-8800 <br />