UNSPSC 77101900: Pollution investigation services

UNSPSC 77101900 Pollution investigation services is a Class code under which state and local governments solicit environmental site assessments, chain-of-title and potentially responsible party (PRP) searches, laboratory analysis of environmental contaminants, and field sampling services to support environmental compliance, remediation, and health-impact research. The scope spans both property-focused investigations (title searches, PRP identification, Phase I environmental assessments) and analytical work (laboratory testing for polycyclic aromatic hydrocarbons, cotinine, microplastics, and per- and polyfluoroalkyl substances in environmental and biological samples). Issuing bodies include state environmental agencies, county governments, and municipalities. The California Department of Toxic Substances Control and the California Environmental Protection Agency's Office of Environmental Health Hazard Assessment are standout repeat buyers under this code in the current period, each posting multiple solicitations for related services.

California dominates recent activity under the code. Representative current opportunities include the California Department of Toxic Substances Control's RFP# 2627-07 for PRP search and chain-of-title search services, due August 13, 2026, with an estimated contract value not to exceed $950,000 over two years; the OEHHA's IFB 25-E0033 for laboratory analysis of polycyclic aromatic hydrocarbons and cotinine in urine samples to support the CHAIRS-LA study, due June 11, 2026, with a total contract value not to exceed $176,000; and the OEHHA's IFB 25-E0032 for water sampling services supporting microplastics research in drinking water under Senate Bill 1147, due May 29, 2026, with a budget not to exceed $49,999. Activity also appears in Connecticut (the Town of Stonington's RFP for environmental assessment of the Campbell Grain Property, due June 23, 2026) and Colorado (Boulder County Parks and Open Space's RFI for PFAS evaluation of herbicides, response deadline May 15, 2026). California's environmental agencies apply small-business and disabled veteran business enterprise preferences where applicable; the code also shows isolated opportunities outside California.