Our office is fully staffed and available to conduct subsurface investigations, soil, soil-gas, groundwater and lysimeter sampling for landfills and hazardous waste sites. We believe that this provides our clients with an opportunity to hire a responsive environmental contractor that will be able to quickly respond to their needs. Some current and completed landfill projects include:

• Beale Air Force Base Landfills 2 & 3, Marysville CA
• Glenn County Sanitary Landfill, Glenn County, CA
• Colusa County Landfills, Colusa County, CA

Other aspects of hazardous waste management include Spill Prevention, Control and Countermeasure (SPCC) Plan. In 1989, the California Legislature found that in order to protect the state's people and natural resources from aboveground petroleum storage tank spills, an inspection program was necessary. The Aboveground Petroleum Storage Act (Act) became effective January 1, 1990. In general, the Act requires owners or operators of aboveground petroleum storage tanks to file a storage statement, pay a fee by July 1, 1990, and implement measures to prevent spills. An SPCC plan is certified by a Registered Professional Engineer and a complete copy is maintained on site.

To learn more about SPCC plans visit: California State Water Resource Control Board Aboveground Storage Tank Program

H&A is experienced in the development and execution of site investigations for the purpose of:

• Confirming or refuting the suspected release of contaminants into the environment.
• Quantifying the magnitude and extent of contaminant release.
• Ascertaining the true risk to public health and the environment.
• Developing cost-effective remedial actions.

We perform site investigations under various regulatory initiatives, including RCRA, HSWA, CERCLA, TSCA, CWA, TPCA, California LUFT, SWAT, and California State Superfund. These investigations involve the following areas of service that H&A provides for field investigations:

• Groundwater Sampling and Analysis
• Groundwater Monitoring Well Network Design/Installation
• Chlorinated Solvent and Hydrocarbon Investigations
• Fractured Bedrock Investigations, Geophysical Surveys, Rock Coring
• Soil Sampling and Analysis
• Surface Water Sampling and Analysis
• Vadose Zone Monitoring
  

H&A has managed and implemented remedial action projects involving treatment of contaminated groundwater and soil, removal of leaking underground storage tanks, closure of industrial facilities, and the removal and disposal of contaminated materials. Our firm has extensive experience with the review and selection of disposal and treatment options, and has conducted projects utilizing solidification and stabilization of contaminated soils, bioremediation of hydrocarbon contaminated soils, metals fixation, and PCB incineration. H&A has implemented and completed many remediation projects addressing hazardous waste contamination in soil, groundwater, and other media including:

• Contaminated Groundwater Remediation
• Contaminated Soil Remediation. Includes: Physical/Chemical Treatment, Containment, Thermal Treatment, and Biological Treatment
• Waste Removal and Disposal. H&A provides the capability to safely and effectively remove, transport, and dispose of contaminated soils, groundwater, and other debris encountered at hazardous waste sites.  

H&A has worked with municipalities, regional agencies, and other public clients in California for over 15 years providing a full service approach for the development, management, design, construction, and operation and maintenance of public utility systems.

Projects have included both new wastewater collection and storm drainage systems and the rehabilitation of existing facilities including; infiltration/inflow (I/I) studies and sewer system evaluation surveys (SSES).

The following describes types of current sewer projects, and projects H&A has recently completed:

• Siskiyou County Flood Control Sewer Rehabilitation Project, Siskiyou County, CA
• Supernatant Overland Flow Treatment System (SOFTS), Neal Road Landfill, Butte County, CA
• Community Wastewater Treatment Designs, Butte County, CA
• Reclaimed Water Design, Beale Air Force Base, Marysville, CA
• Septic System and Leach Field Design 

H&A has experience in all facets of industrial waste permitting, design, and development.  Our projects have included a variety of manufacturing operations and treatment processes.  H&A's staff keeps current with technological advances in both equipment design and treatment processes, enabling the firm to analyze specific treatment needs and to provide cost-effective and proven solutions.

For waste treatment, a multi discipline approach is used to ensure that a comprehensive solution is recommended.  H&A's team of professionals are knowledgeable in industrial processing, identifying sources and boundaries of contamination, isolating waste streams, and using on-site measurements to develop design criteria.

H&A has experience in the following areas of industrial facilitation:

• Industrial Waste Permitting
• Categorical Discharge Limits
• Analyzing Specific Treatment Needs
• Regulatory Compliance/Negotiations
• Cost Effective and Proven Solutions