underwater welding and burning

Advanced Diving Services is an inland commercial dive company started in April 2000 in Mesquite, Nevada by James M. Nilsson. It provides underwater inspections, construction, cleaning and maintenance of inland water tanks, towers, marinas and reservoirs, and has earned contracts with N.A.S.A., the Environmental Protection Agency, the U.S. Air Force, the National Parks Service, and public and private power and water corporations. The company follows AWWA, ADCI and OSHA standards.

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commercial divingdemolitionepoxy injectionexcavationgradingland clearingROV inspectionsite preparationsonar surveyingsteel and concrete cuttingtank cleaningunderwater constructionunderwater diamond coring

Chicago Underwater is a commercial diving, dredging, and marine construction company with over 35 years of inland and offshore experience. Owner Jim Rolette started his diving career in the Gulf of Mexico in 1982 and brought the Chicago Underwater name back after working under Jim Peterson. The company serves electric utilities, manufacturers, contractors, engineering firms, municipalities, and government clients.

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commercial divingconcrete inspection and repaircontamination divingDesign-Build Servicesdiver assisted dredginghigh pressure epoxy and grout injectionhydraulic dredgingice divinginternal pipe penetrationmarine constructionmechanical dredgingsalvage and recovery