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Water and Sewer - southwest water reservoir sites, 1968 - 1971 job # 6319 | AF/155606 | 12/31/1966 | ||
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Water and Sewer - water reservoir sites 1958 -1960 | AF/155607 | 12/31/1966 | ||
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Water and Sewer - water resources study, 1976 Portland Vancouver Metro area | AF/155608 | 12/31/1976 | |
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Water and Sewer - impact of water tanks in residential areas, 1959 - 1960 job # 6002 | AF/20093 | 12/31/1960 |