construction services, engineering services, bridge construction design, waste water treatment consultancy, consulting engineers or designers, land drainage design, residential road design, hydrological services, environmental investigation, commercial building structural or engineering design, land or site surveying or investigation, topographic surveyors, construction design, industrial waste water recovery or treatment plant contractors or design, land use planning available from p. joseph lehman, inc., based in hollidaysburg, pa. click the links below to visit our website or contact us via our profile page.