C&W Diving Services is ready and able to mobilize and perform wherever the customer has a problem to solve. With experience working in remote locations, C&W can set up a self-sufficient job site and get the job done. Offshore Whether offshore, at remote dam sites or in other countries, C&W is able to coordinate and conduct a project in a timely and cost effective manner. C&W diving crews have operated in just about every environment imaginable, from 120-degree desert heat to below-zero temperatures where crews had to break the ice before entering the water to perform underwater concrete placement. Diving operations have included working in untreated sewage and in an acidic leech pond of an open pit copper mine and has the expertise to safely conduct diving operations at high altitudes. C&W has containerized equipment and systems ready to mobilize to remote locations and complete an entire project from start to finish with little or no contact with outside sources. With this ability to provide complete project management, C&W is qualified to handle project planning, transportation of personnel, equipment and materials and perform anywhere, anytime. Inland Harsh Weather Offshore Oil Platforms High Altitude Dams Mines 24-Hour Response Aqueducts Self Sufficient Water Tanks "Can Do" Attitude
C&W Diving Services is more than just a diving company. Many projects C&W works on are one-of-a-kind requiring development and implementation of innovative construction procedures. These projects often require the use of specially designed equipment and project components to complete jobs safely and to specification. Project management teams from C&W are technically oriented to utilize newly engineered underwater operation applications. C&W has the experience and knowledge to provide solutions to seemingly impossible situations. Certified engineers are on call and utilized whenever a project specifications requires the use of components or procedures that could present a safety hazard or effect the reliability or usability of a component or system installed by C&W. Cofferdam The procedures to install underwater structures with tight tolerance specification are common aspects of the underwater projects undertaken by C&W. The company s engineering team has designed numerous installation aids, including rigging, templates, survey systems, guide wires and spreader frames. The engineering team has performed barge stability and mooring analyses and crane The C&W engineering team provides the latest in engineering design of a variety of marine structures for river, lake and offshore ocean environments. Recent engineering projects include: design of mooring structures; bulkhead engineering and structural assessment; marine outfall repair component design; cooling water intake head design; marine structure abandonment and removal; marine installation planning and engineering; marine structural integrity assessment; and modification of pier and floating dock design. The engineering oriented problem solving capabilities set C&W apart from other diving companies by providing its customers with solutions at lower cost. Intake Structure
C&W Diving Services has extensive experience performing search and salvage operations. Expertise includes preliminary planning, locating, recovering and disposal. The company conducts search and salvage operations quickly and affordably. On call 24 hours a day, C&W has its dive teams and equipment ready to respond to a need for search and salvage services. C&W is well versed in working with the Federal and State agencies often involved with search and salvage situations. With the knowledge, experienced personnel and equipment ready to go, C&W is a phone call away and prepared to perform a successful search and salvage mission. On Call 24-Hours Rapid Mobilization Debris Surveys Experienced Salvers Derelict Vessel Removal Mixed-Gas Diving Capabilities Platform maintenance/repairs Pipeline maintenance/repairs Vessel Support Platform Repair/Maint. Recovery Operations
C&W Diving Services, Inc. has been providing government agencies with diving services by installing/repairing/inspecting: Intake structures Trash racks Radial gates Concrete remediation (stop logs, tailrace) Bulkheads Underwater grouting operations Tower demolitions Customers include: the US Bureau of Reclamation, Army Corps of Engineers, PG&E, Southern California Edison, Metropolitan Water District, Department of Water Resources, and several more. Intake Pipe Intake Screen Articulating Bulkhead System
C&W Diving Services has a long-standing reputation as the premier provider of underwater ship husbandry services. The engineering and diving company has been providing cofferdam and extensive underwater repairs for the U.S. Navy and commercial vessels since 1978. With a large inventory of standard cofferdams, C&W is available to respond immediately, 24-hours a day to a customers' call for assistance. C&W designs and fabricates engineer-certified custom cofferdams to accommodate any special situation. C&W has passed the very stringent qualifications of NAVSEA and ABS and can perform underwater welding on the hull and running gear of both Navy and commercial ships. Welding repairs can be performed either underwater or in a dry habitat chamber. C&W's NDT Certified Level II Inspector with diving qualifications enables the company to offer in-water NDT testing of ship hulls. Considerable savings is gained by using C&W's expertise in making repairs while a vessel is in the water. C&W has extensive experience working with underwater coatings that insure preservation of areas repaired. Automated hull scrubbing units allow C&W to quickly and economically clean a ship while in the water. This saves tremendously on fuel costs and dry docking expenses, plus adding to a ship s hull life. Inspection services are provided by C&W for brokering, insurance (appraisals, claims) and pre-maintenance scheduling. Inspections are accompanied by written reports, technical drawings and illustrations, and underwater still photos and video. The C&W video services allow top-side personnel a real-time view of underwater conditions and of surveys being performed. Ship Husbandry NAVSEA and ABS Certified Underwater and Dry Habitat Welding Design, Fabrication and Installation of Cofferdams Hull Blanks Propeller Inspection Advanced Underwater Painting and Coating System Zinc Replacements Underwater Inspection Services, Including NDT Photo and Video Inspection Documentation and Report Preparation Anode Survey Cofferdams
C&W Diving Services has the trained personnel, equipment and experience to perform underwater operations that most companies are not qualified to perform. Providing 24-hour response, C&W is able to offer solutions to problems involving work in hazardous environments. C&W has the training programs and certifications to perform its work in compliance with government standards, including OSHA, EPA, NAVSEA and MIL-Specs. C&W has equipment ready to mobilize at work sites with hazardous conditions that may include highly contaminated water, confined work spaces, tunnel work, zero visibility and high altitude operations. The company has considerable experience on projects requiring sterilization procedures, such as working within potable water tanks. The company incorporates personnel training, specialized equipment and experience to successfully complete especially challenging projects and satisfy all safety regulations. Hazardous environment projects C&W has completed include active sewage outfall line inspection and maintenance, recovery of batteries in waterways, inspection and repair to mining operation leech pits filled with acid-water, and municipal drinking water reservoir tanks that require special decontamination procedures to insure sterile quality of tank water. Confidence to work in zero visibility is a testament to the skills and experience of C&W dive team members. All C&W Project Managers are HAZWOPER certified and prepared to contend with hazardous conditions encountered on a job site Safety - #1 Priority 24-hour Emergency Response 40-hour HAZWOPER Qualified Dive Teams Hazmat Reporting To Government Agencies Contaminated Water Standards Compliance
C&W Diving Services owns and operates several advanced systems to solve problems. From floating plant to its in-house NDT laboratory, C&W is able to provide the equipment required to accomplish underwater or marine environment projects on 24-hour notice. C&W has performed numerous concrete cutting operations with its diamond wire saw unit and custom designed gang concrete core drilling systems both under and above water. Often, projects with initial prohibitive labor costs were able to go forward with C&W's engineering approach to problem solving. C&W is one of only two companies in the U.S. certified by NAVSEA to perform underwater welding on U.S. Navy ships. Utilizing its on-site dive tank and testing facility, C&W tests and maintains welding procedures and diver/welder qualifications. The company can meet any welding specification and perform wet welding as well as underwater dry chamber welding. As required, C&W utilizes ROV technology to get the job done and provide the best value to its customers. The company operates its own inventory of "Advanced diving equipment and systems" to gain maximum efficiency and economy. Using its engineering capabilities, C&W is able to modify and customize its equipment to fit specific configurations and requirements. Remote Operated Vehicles (ROV) Mixed-Gas Diving Systems Fly-Away Dive Systems Mobile Dive Systems Decompression Chambers (DDC) Diver Hot Water Delivery Systems Dive Support Vessels (DSV) Vessel Support Dive Trailers Dive Vans
Pusher/Tug Boats Crew Boats Dive Support Vessels (DSV s)
Diamond Wire Saw Cutting, Core-Drilling, Explosives, Jack-hammering, and much more. Underwater cleaning of structures, vessels and inspections. C&W provides vessel support services with it s fleet of Tugs, Crew boats and Dive Support Vessels. Underwater grouting, injection grouting, fabric-form placement, pre-cast panels, and much more. Installations of underwater structures and retrofits to dams, bridges, and much more. C&W provides engineering services, detailed inspection reporting, value engineering, and much more.
PLATFORM ELLEN MARINE GROWTH REMOVAL AND CP ANODE INSPECTION OFFSHORE-BETA COMPLEX, CA. C&W performed marine growth removal operations and cathodic protection system anode inspection on platform Ellen for Pacific Energy Resources Ltd. The work performed is part of an ongoing structural maintenance program involving platforms Ellen and connected platform Elly. C&W provided all personnel, equipment, materials, safety staff and supervision necessary to complete the subsea maintenance and diving services. The project was successfully finished within the scheduled 2 week time table. Point of Contact: Pacific Energy Resources, Ltd. Joe Mathewson Project Manager (562) 683-3492 Photo: Platform Ellen REPLACEMENT OF DETERIORATED LANDWARD OUTFALL SAN CLEMENTE ISLAND, CA. C&W Diving Services, Inc. (C&W) mobilized an LCM-8 outfitted with a Deep Air Fly-Away Dive System to San Clemente Island for the installation of an outfall system. C&W installed a 160-foot long HDPE surf-zone section and a 320-foot deep-water zone section. The surf-zone section was a single 4-inch inside and 8-inch HDPE. The annulus was grouted and anchored in place. The deep-water section consisted of eight 40-foot flanged sections. The deep-water outfall was anchored using concrete ballast weights. The operation was successfully completed with minimal impact to the environment. Point of Contact: R.E. Staite Engineering, Inc. Walt Jellison Senior Project Manager (619) 477-7900 Photo: Outfall transition from surf-zone section to the deep-water zone.
SUBMARINE CABLE INSTALLATION OAKLAND/SAN FRANCISCO, CA. C&W provided dive support in the removal of a telecommunications submarine cable and the installation of a new cable during the San Francisco-Oakland Bay Bridge retrofit. A Fly-Away Dive System was placed on the general contractors pipe lay barge. Diving operations included sled checks, burning out sections of the existing cable, and new cable placement. Point of Contact: Manson Construction Bill Cook Project Manager (510) 232-6319 Photo: Cable laying sled FALCON 1 ROCKET RECOVERY FOR SPACE X SAN DIEGO, CA. AND KWAJALEIN, MARSH ISLANDS C&W assisted Space X in developing and testing recovery procedure for the outer space launch vehicle, Falcon 1. C&W provided vessel support and surface swimmers during a simulated recovery of the Falcon 1 off-shore of San Diego. Space X was able to assess the viability of the system and procedure for use off the Kwajalein Atoll. C&W swimmers are scheduled to assist Space X off the Kwajalein Atoll during the maiden launch of the Falcon 1 on an undisclosed date. Point of contact: John Colouris, Director of Missions Operations. (310) 363-6327 Photo: Image courtesy of Space X, 2008 Space Exploration Technologies Corp.
PIT 3 & 4 INSTREAM FLOW RELEASE MODIFICATIONS BURNEY, CA. C&W has been working on a design build project on the Pit River in Burney, CA, for Pacific Gas and Electric Corp. In the upcoming months, C&W will install an instream flow system to the Pit 3 Dam. Operations will include underwater core drilling and grouting at depths up to approximately 100 ft. C&W is also responsible for the design of a cofferdam for the dry installation of a new sluice gate on the Pit 4 Dam. C&W Divers will be responsible for the installation of the cofferdam. Work is scheduled to be completed in March 2010. Point of Contact: Barnard Construction Phil Martin Project Manager (406) 586-1995 Photo: Marine platform assembled in the Lake Britton reservoir for diving operations. LAKE MEAD INTAKE NO. 1 MODIFICATIONS BOULDER CITY, NV. The contract required tie in of the existing water intake for the city of Las Vegas from 100' to 170' of water depth. The existing 12' diameter raw water intake was prepared to receive a 10' diameter tee section. A 12' diameter x 168' long mortar coated steel pipe section weighing 180 tons was constructed on shore and placed in the lake utilizing a critical lift plan involving two 300-ton cranes. The pipe was towed to deep water, where it was deployed utilizing a controlled descent plan developed by C&W and naval architects. The pipe was mated to a Carnegie joint section attached to the tee section in 100 ffw. The lower end of the pipe was set on a precast slab located at 170 ffw. Point of Contact: Southern Nevada Water Authority Armin Vogt, 509/838-4455 Photo: 12 diameter intake structure to be installed in 170 of water on Unit 1.
SAN ONOFRE NUCLEAR GENERATING STATION SAN ONOFRE, CA. As the contract diving company for SONGS for the past 15 years, C&W has carried out numerous penetration dives requiring as much as 1500 ft. of penetration. C&W's dive crew, aboard C&W diving support vessels, has conducted underwater video inspections, cleaning operations and repair activities of the plant's reactor cooling intake pipe. In April 2006, C&W was approached by the SONGS decommissioning team to assist them in permanently plugging the Unit 1 intake and discharge conduits. Working in conjunction with SONGS personnel, C&W developed and engineered a method to remove piping obstruction and install a concrete plug at the offshore side of the plant gates. The plug will effectively block ocean water from entering the plant. Point of Contact: San Onofre Nuclear Generating Station Mike Shephard ( 949) 368-7202 Photo: Diver inside the Unit 1 Intake tunnel to perform inspections. NIMBUS DAM RADIAL GATE REPAIRS RANCHO CORDOVA, CA. AMERICAN RIVER C&W is replacing the radial gate lifting hardware and watertight seals on 18 tainter gates used to control water flow. Articulating submersible bulkheads composed of eleven caissons are first assembled and installed in order to dewater the 18 individual bays. The lifting hardware and old seals on the tainter gates are then removed and replaced. Additionally, C&W is installing ladders and handrails on the concrete platforms joining these bays. C&W is also assisting in the development of future bulkhead installation procedures. Point of Contact: U.S. Bureau of Reclamation / Cal Inc. Raymond Chan Project Manager (707) 446-7996 Photo: C&W installing pier braces and an articulating bulkhead made up of 11 caissons for dewatering and gate repairs.
San Diego, California Oakland, California By Mail: C&W Diving Services, Inc. Post Office Box 2433 National City, CA 91951-24331706 By Phone: (619) 474-2700 By Fax: (619) 477-2700 By Mail: C&W Diving Services, Inc. 375 Burma Road Oakland, CA. 94607 By Phone: (510) 444-5335 By Fax: (510) 451-4724 Fredrick W. West Principal fred@cwdiving.com Aaron Everett Director of Operations aaron@cwdiving.com William Harju HSE Manager bill@cwdiving.com Jeremy ALBE Albert Operations Manager albe@cwdiving.com General Information info@cwdiving.com Dave Ramsey Operations Coordinator dave@cwdiving.com Norma Hernandez Administrative Manager norma@cwdiving.com Lauren Fancy Project Coordinator lauren@cwdiving.com Accounting Department accounting@cwdiving.com