grain size analysis

Aqua Survey, Inc. is a full-service ecotoxicology and on-water survey company founded in 1975 with over 45 years of experience in the environmental field. It provides field sampling, geophysical surveying, laboratory testing, and consulting services, and operates a fleet of over 20 research/survey vessels ranging from a 12-foot tracked amphibious vehicle to a 32-foot research vessel.

benthic grab samplingBioaccumulation studiescone penetrometer testingdrilling supportgeophysical surveyingMetal detectionparallel seismic testingsediment vibracoringsonar bottom mappingtoxicity testingvessel supportwater sampling and monitoring

Atlas Testing Laboratories, Inc. is a testing laboratory in Rancho Cucamonga, CA, offering metallurgical evaluation, mechanical testing, chemistry analysis, solution analysis, and fracture mechanics/fatigue studies. The company states its attention to service and detail has made it an industry leader with a global list of clients.

alpha case and case depth evaluationbending moment testingbend testingCharpy V-notch impact testingcoating thickness measurementcompression testingdecarburization evaluationelevated tensile testingGFAA analysishardness & microhardness testingICP analysisintergranular corrosion testingmicro/macrostructure examinationproof load testingshear testingspectrographic (OES) analysisstress durability testingstress rupture testingtensile testing

Coastal Monitoring Associates (CMA) is a SAM-registered small business founded in 2003 and based in Southold, New York. It provides specialized field, analytical, and consulting services for environmental assessment and monitoring in coastal, estuarine, and other aquatic systems, focusing on groundwater-surface water interface (GSI) investigations. CMA uses its patented Trident Probe and UltraSeep technologies and has maintained a zero-incident safety record across more than 100 field deployments.

bioassay exposurescore samplingdischarge zone mappingdiver-collected samplingfield analytical and consulting servicesgrab samplinggroundwater seepage quantificationpassive sampler installationPFAS investigationsporewater samplingsediment sampling

Construction Testing Laboratories, Inc. (CTL) is a special inspection and testing laboratory located in the Tacoma area, where it has resided for over fifteen years. CTL maintains the highest level of accreditation available for technical competence in its industry, as set forth in ISO17025:2005, and is accredited through bodies such as A2LA, AASHTO (R-18) and in accordance with ASTM E-329. It also maintains validation with the Army Corps of Engineers (ACOE).

aggregate testingasphalt mixture testingAtterberg limitsHamburg wheel rut testingLA AbrasionMarshall method mix designsporous HMA mix designssoils laboratory testingspecial inspectionSpecific Gravitystandard and modified proctors for compaction testingSuperpave / Gyratory mix designsWSDOT Degradation