In a coordinated effort, the Department of Toxic Substances Control, the Los Angeles Regional Water Quality Control Board, and the DTSC have jointly developed the Advisory reproof.
Active Soil Gas Investigations. Active Soil Gas Investigations (ASGI or Advisory) provides technically defensible and consistent approaches for collecting and analyzing soil gas samples.
The Advisory is not a regulation. It does not impose any requirements or obligations on the regulated community. Rather, it provides a technical framework and reference for addressing soil gas sample collection and analysis. It is not intended to determine the need for soil gas samples, but rather to serve as a guide once a decision has been made to collect soil gas samples. Other technically equivalent procedures may exist.
What soil gas sampling can do for your organization:
- Substantially reduces total site investigation cost by up to 50%
- Reduces investigation time; preliminary results available within 24 hours
- Reduces the costs and amounts of laboratory chemical analyses
- Real estate transactions: Reduces cost and time for site assessment
- Minimum disruption of business operating facilities
- Defines soil/ground water contamination origin; can identify source as underground or aboveground leaks, chemical spills, accidents, waste disposal sites, etc.
Soil gas sampling has been used for:
- Environmental surveys - underground and aboveground tanks, gas stations, fuel storage depots and pipelines, surface spills/leaks, waste disposal sites, ground water contamination;
- Real estate surveys - land acquisition, tenants change, purchasing industrial buildings or land;
- Corporate acquisitions - risk and liability assessment;
- Monitoring of facilities - industrial, tank farms, fault and fractures, waste sites, fuel and chemical storage facilities.
- SPI provides cost-effective site investigation technology that makes sense.