Hydro Analysis

Founded in 1985 as Hageman-Aguiar, HYDRO ANALYSIS, INC. is an engineering consulting firm with an ongoing emphasis on groundwater and surface water resources.

Our reputation for responsive, innovative, and cost-effective environmental services rests on the personal relationship of trust and confidentiality we establish with each client.

Aquifer Testing


• Design and Implimentation of Aquifer Tests
• Dynamic Pump Testing (Groundwater Extraction)
• Slug Testing
• In-Site Hydrologic Testing Using Computerized Data Logging Equipment
• Evaluation of Aquifer Test Data
• Estimation of Hydraulic Properties of Water-Bearing Units
• Assessment of Aquifer for Potentional Water Supply
• Assessment of Groundwater and Surface Water Interaction
• Design and optimization of Pump-and-Treat Systems
• Stream Flow Study for the Evaludation of Potential Artifical Recharge Projects

Construction Dewatering


• Design of Dewatering Systems for Building and Dam Construction
• Field Aquifer Testing
• Analysis of Pump Test Data
• Analystical Groundwater modeling
• Field Observation and Inpection

Expert Testimony


• Expert Opinion and Testimony, Including Expert Witness in Court of Law
• Technical Support for Legal Counsel
• litigation Support
• Cost Allocation and Economic Analysis of Remedial Options
• Groundwater Contaminant Plume Differentiation and Source Determination
• Regulatory Compliance Reviews
• Preparation of Computer Graphics for Trial

Groundwater Monitoring


• Work Plan Development
• Design and Installation of Groundwater monitoring Programs
• Groundwater, Leachate, and Surface Water Sampling and Analysis
• Elevation Surveying of Monitoring Wells
• Evaluation of magnitude and Direction of Groundwater Movement
• Evaluation of Vertical Hydraulic Gradient
• Quality Assurance/Quality Control of Field and Analytical Data
• Preparation of Groundwater Monitoring Reports

Groundwater Supply


• Water Resources Studies
• Groundwater Supply Exploration and Development
• Water Well Design and Installation
• Water Quality, Stable Isotope, and Tracer Studies
• Basin Analysis of Regional Groundwater Flow Systems

Hydrologic Analysis


• Stream Flow Study for the Evaluation of Potential Artificial Recharge Projects
• Island Hydrogeology Including Assessment and Subsequent Remediation of Contamination Within a Freshwater Lens Environment
• Hydrogeology of Coastal Aquifers, Including Tidal Influences, Water Supply, Water Quality Concerns and the Prevention and Remediation of Saltwater Intrusion.
• Hydrologic Analysis of Storm Water Runoff
• Facility Storm Water Permitting, Including Site Assessment, Facility Modifications, Storm Water Sampling, and Reporting.
• Designing Borehole Permeameter (Percolation) Test to Evaluate Seepage
• Developing and Interpreting Hydrographs
• Evaluation of Groundwater/Surface Water Interaction

Industrial Facility Storm Water Management (SWPPP)


• Inspection and Analysis of Industrial Facility Operations
• Development of Best Management Practices (BMP's)
• Recommend Facility Modifications to Meet Regulatory Compliance for Storm Water Discharge
• Preparation of Storm Water Pollution Prevention Plan (SWPPP)
• Provide Required Inspections, Storm Water Sampling, reporting and Regulatory Compliance
• Train Facility Personnel to Conduct Storm water Compliance Activities in-House
• Design Engineered Systems to mitigate Quality Violations for Discharged Storm Water

LUST Case Closure


• Documentation of Completion of Remediation Activites
• Preparation of Conceptual Site Model (CSM)
• Detailed Analysis of General Criteria per SWRCB's Low-Threat Closure Policy
• Detailed Analysis of Media-Specific Criteria per SWRCB's Low-Threat Closure Policy
• Indetification of Data Gaps that may Pose Impediments to Case Closure
• Collection of Additional Subsurface Data, Including Soil Vapor Sampling
• Preparation of Final Case Closure Documents
• Destruction of Monitoring Wells and Site Restoration

Phase I Environmental Site Assessments


• Phase I Environmental Site Assessments Consistent with ASTM Standards
• Historical Site Reviews
• Regulatory Compliance and Recordes Reviews
• Property Inspections
• Review of Aerial Photographs and Sanborn (Fire Insurance) Maps
• Interviews with Current and Previous Owners and Operators
• Interviews with Regulatory Agencies
• Regulatory Permitting Assistance
• Interface with Banks and Lenders

Soil & Groundwater Remediation


• Design, Construction, Operation, and Maintenance of Remediation Systems for Contaminated Soil and Groundwater Including:
 ○ Soil Vapor Extraction
 ○ Air Sparging
 ○ In-Site Chemical Oxidation
 ○ Bioremediation
 ○ Landfarming
 ○ Groundwater Extraction and Treatment
• Bench-Scale and Pilot-Scale Treatability Studies
• Preparation of Feasibility Studies and Remedial Action Plans
• Estimation of Remedial Costs
• Negotiations with Regulatory Agenices
• Permitting

Spill Prevention Management (SPCC Plans)


• Inspection and Analysis of Industrial Facility Operations
• Inventory of on-Site Chemical Storage
• Assessment of Above-Ground Storage Tanks and Spill Containment Areas
• Identification of Activities Posing Elevated Risks of Spills
• Development of Chemical Handling Procedures that Minimize Risk of Spills
• Development of Spill Response Procedures
• Preparation of SPCC Plan

Subsurface Investigation


• Work Plan Development
• Soil and Groundwater Investigations, Data Collection, and Analysis
• Drilling and Sampling using Hallow-Stern Auger, Direct-Push, Mud Roatary, Air Rotary and Dual-Tube Percussion Drilling Techniques
• Design and Installation of Groundwater and Vadose Zone Wells
• Expedited Site Assessments Using GeoProbes, HydroPunch, and Other Direct-Push Techniques
• Cone Penetrometer Testing and Evaluation
• Soil Gas Surveys, Both Active and Passive Methods
• Lithological and Geophysical Logging Boreholes
• Feasibility Studies
• Quality Assurance/Quality Control of Field and Analytical Data

Underground Storage Tank Management


• Oversight of Underground Storage Tank Removal and Site Restoration
• Investigation and Remediation of Tank and Piping Releases
• Decontamination of Underground Storage Tanks Prior to Removal
• Evaluation of Existing Tank Systems
• Underground Storage Tank Locating
• Design of Sheet Piling, Shoring, Dewatering, and Sloping of Tank Excavations
• Assistance with the California Underground Storage Tank Cleanup Fund
• Design, Permitting, and Constructing of Above-Ground Storage Tanks

Aquifer Testing


KN Properties, Half Moon Bay, CA
Designed and implemented a pump test in order to determine aquifer characterstics at a proposed residential site in the mountains above Half Moon Bay, CA. The results of the aquifer testing were presented in a report to the California Coastal Commission as part of the permitting process.

Redding Petroleum, Martinez, CA
Determined the shallow-aquifer characteristics at a gasoline service station. "Slug testing" at various shallow groundwater monitoring wells was conducted. The results of the data analysis were used in the low-threat case closure decision-making process.

Atkinson Construction Company, Brisbane, CA
Conducted extensive pump testing that took place midway through the construction of the 1.7-miles long west dam foundation at the Metropolitan Water District's Eastside Reservoir near Heme, CA. A dewatering system was subsequently designed based upon the results of the aquifer testing.

Purcell Rhoades Associates, Hawyward, CA
Produced a detailed analysis of data collected from a pump test conducted in Lower Apanolio Canyon, a proposed extension of the BFI Ox Mountain Landfill near Half Moon Bay, CA. The analysis of pump test data revealed the degree to which the shallow groundwater was hydraulically connected with Apanolio Creek. This information was necessary for the determination of any potential problems with future leachate migration.

Construction Dewatering


Atkingson Construction Company, Brisbane, CA
• Involved the design of a dewatering system for the construction of the 1.7-mile long west dam foundation at the Metropolitan Water District's Eastside Reservoir near Hemet, CA. Prior to the implementation of a final dewatering design, field aquifer testing, pump test data analysis and groundwater modeling were conducted by Hydro Analysis. The required drawdown of the groundwater table was achieved approximately one week ahead of schedule.

Expert Testimony


Peterson Martin Reynolds, San Francisco, CA
Created a detailed assessment of gasoline contamination at a residential property located in Sebastopol, CA. The contamination had clearly migrated from a neighboring property. Our assessment included plume delineation and projectied costs of cleanup. The information was used during the litigation between the two property owners.

Olson Properties, Pleasant Hill, CA
Involved subsurface investigation, data analysis, and subsequent participation in a courtroom trial. At the start of the project, a subsurface investigation clearly demonstrated that off-site shallow groundwater contamination by gasoline was migrating onto the Olson property located in Pleasant Hill, CA. The conflict between the property owners resulted in a superior court trial in Martinez, CA. Following expert testimony regarding the results of the investigation, judgement was made in favor of the Olson property.

Trump, Alioto & Trump, Attorneys at law, Fremont, CA
Provided data analysis and expert opinion regarding shallow groundwater contamination migrating from an off-site source onto the Town & Country Business Center development located in Fremont, CA.

Groundwater Monitoring


Various Clients
Since its inception, Hydro Analysis has been conducting quarterly, semi-annual and annual groundwater monitoring at a large number of groundwater contamination sites in Northern California. Monitoring wells are purged and sampled by Hydro Analysis personnel, in accordance with California State Water Quality Control Board and USEPA guidelines. Following the completion of the field work, samples are transported under chain-of-custody to a State-certified laboratory. The results of each groundwater monitoring episode are always presented in a signed report. Minimally, each report includes analytical results, documentation of sampling protocol and a groundwater table contour map, as determined by field water level measurements.

Sturdy Oil Company, Prunedale, CA
Involved extensive on- and off-site groundwater monitoring at a petroleum release site located in Prunedale, CA. The monitoring program included 30 groundwater monitoring wells, as well as additional off-site water supply wells that were impacted by an extensive MTBE plume.

Schnitzer Steel, Oakland, CA
Between 1992 and 2012, Hydro Analysis conducted annual groundwater monitoring at the Schnitzer Steel facility located adjacent the Oakland Estuary. The project included field sample collection from various on-site groundwater monitoring wells, laboratory analysis for Metals and PCB’s, and preparation of a report for submittal to the California Regional Water Quality Control Board.

City of San Leandro, San Leandro, CA
Under contract to the City of San Leandro, this project involved groundwater monitoring at the location of the previous city corporation yard in San Leandro, CA. In addition to purging and sampling all groundwater monitoring wells on the site, a re-survey of TOC elevations was conducted in order to re-establish wellhead measuring points following the previous site demolition activities.

Groundwater Supply


Syntex USA, Inc., Palo Alto, CA
This project involved the survey of existing wells and review of hydrogeologic information at the site of the Syntex Pharmaceutical Evergreen Corporate Office and Research Facility in San Jose, CA. The project included well pump testing, abandonment specifications for several of the existing orchard irrigation wells, and specifications for the installation of several new wells to be utilized for irrigation and fire protection.

KN Properties, Half Moon Bay, CA
Gave an assessment of potential groundwater supply at a proposed residential site in the mountains above Half Moon Bay, CA. The assessment included aquifer testing and pump test data interpretation.

Hydrologic Analysis


Pacific Racing Association, Albany, CA
Conducted a hydrologic analysis of the Golden Gate Fields race track facility located in both Berkeley and Albany, CA. The project included an assessment of peak storm flows and the subsequent design of a stormwater conveyance system from the horse barn area to an infield aeration pond. This project also involved the design of an outside wash-down area for the restaurant at the golden Gate Fields race track in Albany, CA. In order to eliminate any potential discharge into San Francisco Bay, construction drawings were developed for a design that included a concrete pad, drain system, concrete berms and a roof over the entire area. All wash water is now conveyed into the sanitary sewer.

Industrial Facility Storm Water Management (SWPPP)


Sturdy Oil Company, Salinas, CA
Hydro Analysis prepared a Storm Water Pollution Prevention Plan (SWPPP) at a Sturdy Oil Company facility located in Salinas, CA. Hydro Analysis currently provides wet-weather storm water sampling, reporting, oversight of best management practices (BMP’s), and recommendations for site modifications to meet regulatory discharge requirements.

LUST Case Closure


Various Clients
Since its inception, Hydro Analysis has achieved case closure at numerous Leaking Underground Storage Tank (LUST) sites. Currently, case closure is facilitated by the California State Water Resources Control Board’s Low Threat Closure Policy (LTCP). The LTCP provides a mechanism for various general and media-specific criteria analyses, thus providing a smooth mechanism for case closure.

Miller Valley Chevron, Mill Valley, CA
Conducted groundwater monitoring following underground storage tank removals, a sensitive receptor survey, risk assessment and preparation of case closure documents.

Tanimura & Antle, Salinas, CA
Following underground storage tank removals at a farm equipment and maintenance yard, an extensive soil over-excavation project was undertaken. Follow-up work included groundwater monitoring, a sensitive receptor survey, preparation of a conceptual site model and preparation of other closure documents. The case was subsequently closed by the Regional Water Quality Control Board (RWQCB).

Phase I Environmental Site Assessments


Various Clients
Since its inception, Hydro Analysis has conducted over one hundred Phase I Environmental Site Assessments for real estate transactions in Northern California. Records indicate that all of our Environmental Site Assessments have been accepted by the particular lending institution as meeting acceptable standards of due diligence for the respective real estate transaction. All Phase I Environmental Site Assessments are warranted that the scope of work will be consistent with ASTM Standard E 1527, Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process. Any follow-up clarifications regarding the Phase I report that may be required by a buyer, seller, or lender are generally provided at no additional charge.

Soil & Groundwater Remediation


Eden Center Partners, San Leandro, CA
Involved the delineation of a Perchloroethylene (PCE) contaminant plume and the subsequent implementation of a groundwater contamination remediation program for a previous dry cleaner site in San Leandro, CA. The project involved: (1) soil & groundwater plume delineation by GeoProbe and soil boring sampling, (2) installation of various monitoring wells, (3) installation of eleven vapor extraction wells, (4) design and construction of a vapor extraction system, (5) utilization of both blower/carbon adsorption and air-sparging technologies, and (6) identification of several impacted domestic wells in the neighborhood. Following extensive work at the site, it was demonstrated that the shallow groundwater plume had been remediated to such an extent that the California Regional Water Quality Control Board (RWQCB) has issued case closure.

Sturdy Oil Company, Salinas, CA
Involved contaminant plume delineation and subsequent implementation of a groundwater contamination remediation program at a service station in Prunedale, CA. The site had one of the largest MTBE plumes in Monterey County. The project has involved seven separate remediation projects: (1) pump-and-treat, (2) soil over-excavation, (3) Oxygen-Release Compound (ORC) injection, (4) groundwater extraction, (5) activated carbon placement in storm sewers, (6) soil vapor extraction with air-sparging and (7) soil vapor extraction using air blower. The site is currently under review for case closure by the California Regional Water Quality Control Board (RWQCB).

Sunnyvale Lumber, Sunnyvale, CA
Involved contaminant plume delineation and subsequent implementation of a groundwater contamination remediation program at a lumber yard in Sunnyvale, CA. This project involved the installation of various monitoring wells, several vapor extraction wells, design and construction of a vapor extraction system, and the utilization of both blower/carbon adsorption and IC engine technologies. Following an extensive program of vapor extraction at the site, completion of contamination remediation was achieved by injection of ozone into deep permeable strata beneath the site. Case closure has been issued by the California Regional Water Quality Control Board (RWQCB).

JCN Developers, San Francisco, CA
Conducted a subsurface investigation, groundwater monitoring and oversight of a large soil over-excavation. In order to facilitate case closure and allow residential development of a previous service station property, nearly the entire footprint of the property was excavated down to below the shallow groundwater table. The contaminated soil was off-hauled for disposal. Case closure was subsequently issued by San Francisco Department of Public Health and by the California Regional Water Quality Control Board (RWQCB).

Spill Prevention Management (SPCC Plans)


Matheson Trucking, Sacremento, CA
Prepared Spill Prevention Control and Countermeasure (SPCC) Plans for Matheson Trucking at their facilities located in Sacramento, CA, and Sparks, NV. Hydro Analysis continues to revise and update these plans in order to meet regulatory compliance.

Sturdy Oil Company, Salinas, CA
Prepared Spill Prevention Control and Countermeasure (SPCC) Plans for various Sturdy Oil Company facilities located in Salinas, CA and in Gonzales, CA. Hydro Analysis continues to revise and update these plans in order to meet regulatory compliance. We also provide technical support regarding on-site spill prevention and personnel training.

Kiewitt Pacific Company, Concord, CA
Prepared Spill Prevention Control and Countermeasure (SPCC) Plans for temporary construction yards located at large Kiewitt Pacific construction projects located in Benicia, CA, and in Banta, CA.

Subsurface Investigation


Various Clients
Since its inception, Hydro Analysis has conducted several hundred subsurface investigation projects. The results of these investigations have been utilized for such things as groundwater contaminant plume delineation, assessment of subsurface soil contamination, Phase II Environmental Site Assessments, remediation system design, determination of subsurface hydrogeologic conditions, and low-threat LUST case closures.

Swiss Calley Cleaners, San Leandro, CA
Conducted a subsurface investigation beneath the floor of the Swiss Valley Cleaners in San Leandro, CA. An extremely cost-effective approach for evaluating the subsurface conditions prior to an upcoming real estate transaction was achieved by concrete coring and hand-boring at locations immediately adjacent to the existing dry cleaning machine. The results of the investigation provided the necessary documentation in order that the sale of the business could be completed.

Adobe Associate, Castro Valley, CA
Installed and quarterly sampled shallow groundwater monitoring wells following underground storage tank removals at the site. Based upon analysis of groundwater sampling data, conduct of a sensitive receptors survey, and completion of a Site Closure Summary, case closure was issued by Alameda County Environmental Health and the State RWQCB. The monitoring wells have subsequently been destroyed under permit by Alameda County.

Wortman Oil Company, Canoga Park, CA
Involved contaminant plume delineation and subsequent interaction with the local State RWQCB for a service station in Canoga Park, CA. The project involved the installation of several groundwater monitoring wells, installation of a large-diameter extraction well, and evaluation of plume co-mingling with an up-gradient fuel leak site.

Dryclean USA, Walnut Creek, CA
Involved the delineation of a perchloroethylene (PCE) contamination in the soil that was caused by a disgruntled employee who dumped still bottoms into a parking lot planter area. The project involved delineation of soil concentrations by soil sample collection & analysis and then proving that the shallow groundwater had not been impacted by collecting groundwater samples at several Geoprobe locations. Soil was subsequently excavated down to a depth of ten feet, then backfilled with properly-compacted fill material. The major portion of the excavated soil was disposed of at a California Class I landfill. A small portion of the soil had to be shipped out-of-state for incineration. Upon completion of the remediation activities, a letter granting regulatory closure was issued by the Contra Costa County Environmental Health Department.

El Estero Car Wash, Monterey, CA
Installed and quarterly sampled seven shallow groundwater monitoring wells, removed several existing underground storage tanks and the over-excavation of a significant volume of contaminated soil. Based upon the effectiveness of the remediation effort, as demonstrated by the groundwater sampling data, a Site Closure Summary was prepared and case closure was issued by State RWQCB, Central Coast Region. The monitoring wells have subsequently been destroyed under permit by Monterey County.

Garza Corporation, Turlock, CA
Involved the investigation and delineation of subsurface fuel oil contamination beneath the Hospital at the Owyhee Indian Reservation, approximately 100 miles north of Elko, Nevada. The project included sample collection in fractured volcanic rock using an air rotary drill capable of slant boring. Samples were analyzed in an on-site mobile laboratory. The final report to the USEPA included soil concentration contours for fuel oil beneath the hospital, as well as presentation of several remediation alternatives.

East Bay Oil Company, Hayward, CA
Involved subsurface investigation and subsequent analysis of hydrogeologic and groundwater quality data for the East Bay Oil Chemical packaging and distribution facility located in Hayward, CA. The project included plume delineation by the installation and sampling of various monitoring wells and the collection of "grab" groundwater samples from a number of HydroPunch locations, both on- and off-site. The scope of work included the investigation of tidal influence on the shallow groundwater table beneath the site. Constituents of concern included Toluene, Xylenes, Methyl Ethyl Ketone, and Chlorinated Solvents (TCA, TCE, DCE, etc.).

Syntex Pharmaceutical, Freeport, Grand Bahama Island
Analyzed of hydrogeologic/groundwater quality data for the Syntex Pharmaceutical facility in Freeport, Grand Bahama Island. This project involved an assessment of potential solvent and VOC contaminant migration, as well as remedial action plan development. The assessment was complicated by karst geology, a strong tidal influence, and the occurrence of groundwater in a freshwater lens.

Syntex Pharmaceutical, Clarecastle, Ireland
Analyzed hydrogeologic/groundwater quality data for the Syntex Pharmaceutical production facility in Clarecastle, Ireland. This project involved the source determination and delineation of VOC contamination in the shallow groundwater due to an on-site industrial landfill situated in a peat bog.

Syntex Pharmaceutical, Cuernavaca, Mexico
Analyzed hydrogeologic/groundwater quality data for the Syntex Pharmaceutical production facility in Cuernavaca, Mexico. The site is underlain by an extensive, highly fractured, volcanic rock. Based upon rapid response between rainstorm activity and rises in the deep groundwater table elevations, proper chemical storage, handling and spill prevention became of utmost importance in the facility management plan.

Underground Storage Tank Management


Hayward Rental and Sales, Hayward, CA
Provided oversight of the removal of an underground storage at an equipment rental facility in Hayward, CA. The project included investigation at a previous underground tank location by potholing, shallow soil sampling within an equipment repair area, and oversight of additional over-excavation of contaminated soil.

Fahy Construction Company, Northern California
Underground tank removal oversight is provided on a regular basis at a number of sites in Northern California. The scope of work typically includes metering & certification of tank inerting, soil & groundwater sample collection as required by local oversight agency, oversight of any over-excavation activities, soil waste profiling, arrangement with various landfills for soil disposal and preparation of a tank removal report.

Empire & Equipment Company, Rohnert Park, CA
Installed and quarterly sampled shallow groundwater monitoring wells following the removal of an underground waste oil tank at the site. Metals contamination in the shallow groundwater was of primary concern. Based upon the effectiveness of the remediation effort (tank and soil removal), as demonstrated by the groundwater sampling data, case closure was issued by Sonoma County, and the RWQCB. The monitoring wells have subsequently been destroyed under permit by Sonoma County Environmental Health.

Gary Aguiar, PE, Principal Engineer


Education:

 ○MS, Civil/Sanitary Engineering, University of California, Berkeley, 1981
 ○BS, Chemical Engineering, University of California, Berkeley, 1977

Professional Registration:

 ○Registered Civil Engineer - California, #CE 34262
 ○Qualified Industrial Stormwater Practitioner (QISP) - California, #01164
 ○Registered Civil Engineer - Oregon, #CE 13353 (Retired)
 ○Registered Civil Engineer - Alaska, #CE 7769 (Retired)

Experience:

 ○Principal Engineer, Hydro Analysis, Inc., El Cerrito, CA, 2000-present
 ○Principal Engineer, Hageman-Aguiar, Inc., El Cerrito, CA, 1990-2000
 ○Principal Engineer, Aguiar Engineering, Berkeley, CA, 1984-1990
 ○Staff Engineer, Todd Engineers, Berkeley, CA, 1980-1984

Specialized Expertise:

 ○ Fuel leak investigation and remediation.

 ○ Underground storage tank removal and subsequent remediation of contamination related to tank and piping releases.

 ○ Design and construction of remediation systems for contaminated soil and groundwater.

 ○ Risk assessments.

 ○ Environmental site assessments for real estate transactions.

 ○ Investigation and remediation of soil and groundwater contamination at dry cleaner sites.

 ○ Indoor air testing and data analysis.

 ○ Hydrogeologic investigations, data collection, and analysis.

 ○ Hydrologic analysis of stormwater runoff.

 ○ Design and construction of above-ground hazardous materials storage areas, including above-ground storage tank installations

 ○ Design and installation of groundwater and vadose zone wells.

 ○ Drilling and sampling using hollow-stem auger, mud rotary, air rotary and direct-push/percussion hammer drilling methods.

 ○ Water resource studies.

 ○ Hazardous waste management.

 ○ Aquifer testing and data analysis.

 ○ Subsurface investigation, facility operations analysis, waste removal and site closure with respect to metal plating facilities.

 ○ Cone penetrometer testing and evaluation.

 ○ Development of Spill Prevention Control & Countermeasure (SPCC) plans for above-ground handling of hazardous materials.

 ○ Construction dewatering.

 ○ Water well design.

 ○ Streamflow study for the evaluation of potential artificial recharge projects.

 ○Groundwater recharge spreading works design.

 ○ Geophysical studies, including borehole logging, seismic refraction, ground-penetrating radar and magnetic gradient mapping.

 ○ Lithologic logging of boreholes.

 ○ Soil gas surveys.

 ○ Island hydrogeology, including assessment and subsequent remediation of contamination within a freshwater lens environment.

 ○ Hydrogeology of coastal aquifers, including tidal influences, water supply, water quality concerns and the prevention and remediation of saltwater intrusion.

 ○ Regulatory agency interface, oversight, permitting requirements and case closure procedures.

 ○ Investigation, assessment and subsequent remediation of subsurface soil and groundwater contamination by organochlorine pesticides at agricultural chemical formulation plants.

 ○ Assessment of movement of non-aqueous liquids through permeable strata.

 ○ Facility stormwater permitting, including site assessment, facility modifications, stormwater sampling and reporting.

 ○ Septic system leach field design.

 ○ Spill response and clean-up oversight.

 ○ Permitted TSD facility closure.

 ○ Design of deep excavation projects, including construction plans and specifications for sheet piling, shoring and dewatering.

 ○Design of both gravity and forced-main storm sewer and wastewater collection systems, including construction plans and specifications.

Teaching Experience:

Instructor, University Of California, Berkeley Extension, 1982 - 2006

Developed and taught courses on the principles of groundwater hydrology, groundwater pollution, and hazardous waste management.

Instructor, University Of California, Berkeley Extension, 1992 - 2007
Taught surface water hydrology as part of Civil Engineering Exam Review course.

Advisory Committee Member, UC Berkeley Extension, 1988 - 1990.
Past member of advisory committee for U.C. Berkeley Hazardous Materials Management Certificate Program.

Assistant Professor, California State University Consortium, Hayward. 1983.
Developed and taught a course on the engineering aspects of environmental planning.

Lecturer, Resource Seminars, Berkeley, CA. 1981 - 1983.
Lectured on the principles of groundwater hydrology at seminars given in various U.S. cities.

Professional Affiliations:

 ○ American Chemical Society
 ○ American Water Works Association
 ○ American Society of Civil Engineers
 ○ National Ground Water Association
 ○ California Groundwater Resources Association

Randal Wilson, Project Manager


Education:

 ○ B.S., Physical Science, California State University, Hayward, 1990

Experience:

 ○ Environmental Scientist, Hydro Analysis, El Cerrito, CA, 1996 - present
 ○ Field Services Supervisor, Mittelhauser Corp., Pleasanton, CA, 1991 - 1995
 ○ Field Technician II, Gettler Ryan, Inc., Hayward, CA, 1990 - 1991
 ○ QA/QC Supervisor, Chlorox Test Products Plant, Pleasanton, CA, 1988 - 1989

Specialized Expertise:

- Hydrogeologic investigations and data collection.
- Hazardous waste manifesting and disposal coordination.
- Tank testing for removal and subsequent soil sampling.
- Water well installation
- Drilling and sampling using hollow-stem auger and direct push/percussion hammer drilling methods.
- Well destruction and abandonment
- Construction, refurbishment, and problem resolution of remediation systems for contaminated soil and groundwater.
- Indoor air sampling and analysis.
- Drum sampling and disposal.
- Water and soil sampling.
- Aquifer pump testing.
- Spill response and cleanup oversight.
- Stormwater runoff sampling and reporting.
- Personnel exposure monitoring programs for workers engaged in remediation projects at large excavation sites.
- Environmental site assessments for real estate transactions.
- Investigation and remediation of soil and groundwater contamination at dry cleaner sites.
- Implementation of interim remedial measures.

Specialized Training:

- OSHA-Mandated 40-hour Hazardous Materials Training Course, with yearly 8-hour refresher courses (40 CFR 1910.120)
- OSHA-Mandated 8-hour Supervisor Training Course for Hazardous Materials Work (40 CFR 1910.120)

Our office is located at:
514 El Cerrito Plaza
El Cerrito, CA 94530

Phone: (510) 529-4980

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