Environmental Consulting

                                        PROJECT EXPERIENCE

 

Aquifer Testing and Groundwater Modeling

Institute Golf Course - Morgan Hill, CA.   Supervised video logs of two wells, performed 72-hour aquifer test on single pumping well, conducted water balance analysis of a golf course, and modeled groundwater flow system.   

Gladdy McBean Landfill – Lincoln, CA. Assisted in planning a 72-hour aquifer test, conducted analysis of aquifer test measurements yielding aquifer characteristics of transmissivity and storativity.   

Marchi Farms – Pescadero, CA. Conducted a slug test on a single well, calculated hydraulic conductivity.   

South County Housing – Pescadero, CA. Conducted a field conductivity test in a piezometer constructed in the unsaturated zone for estimation of hydraulic conductivity of a soil layer. 

Coast Wholesale Flowers – Montara, CA. Conducted a short term single well test to estimate hydraulic conductivity of a water-bearing zone.  

CDF Fire Station – Pescadero, CA. Conducted a test to determine the yield of a water-bearing zone. 

KN Properties – Pacifica, CA. Conducted a test to determine the yield of a water-bearing zone. 

Bluestone Quarry – Morgan Hill, CA. Supervised construction of a well and tested the well for yield for water supply to a quarry. 

Hidden Valley Lakes CSD - Lake County, CA.  (as ASE) Prepared an analysis of the potential impacts of treated wastewater disposal pond on ground water in the Hidden Valley lakes area.  Conducted computer modeling of nitrate transport in ground water flow.  Report submitted to the CVRWQCB in support of permit to construct treatment facility. 

Ground Water Hydrology Studies 

Institute Golf Course - Morgan Hill, CA.   Supervised construction, development, and sampling of three monitor wells located at a golf course.  Collected soil and groundwater samples for pesticides and nitrates.  Conducted monitoring and reporting.   

Mid-Peninsula Housing Corporation - Pescadero, CA.  Conducted a hydrologic study of the potential impacts of a proposed housing development on an underlying aquifer.  Quantified water quality and quantity impacts on the aquifer.   

Pacific Union College - Angwin, CA.  Conducted water balance analysis of a proposed development to determine future demand and potential for use of groundwater and wastewater re-use for irrigation. 

Syar Industries - Yolo County, CA.  Prepared a Technical Report on potential impacts of off-channel mining on ground water resources along Cache Creek as part of a mining permit application. 

Water Supply, Distribution and Treatment 

Coast Galley - Big Sur, CA.  (as ASE) Completed an engineering design for a slow sand filtration plant and expanded the water system to serve additional parcels.  

Coastlands Mutual Water Company - Big Sur, CA.  (as ASE) Completed an engineering design for a multibarrier surface water treatment system consisting of sedimentation, filtration, and disinfection systems. 

Deetjen's Big Sur Inn - Big Sur, CA.  (as ASE) Completed a pilot plant study and engineering design for a slow sand filtration treatment plant. 

Esalen Institute, CA - Big Sur, CA.  (as ASE) Completed a water quality assessment study and sanitary survey to determine the feasibility to operate the existing surface water system in compliance with the filtration avoidance criteria established in federal regulations. 

Nepenthe - Big Sur, CA.  (as ASE) Completed an engineering design of a multibarrier surface water treatment system and evaluated the influence of surface water on a well used by Nepenthe.   

Suncrest Nursery, Inc. - Watsonville, CA.  (as ASE) Evaluated existing water supply and distribution system, quantified irrigation runoff, and presented alternative methods for water conservation and energy savings for water development. 

Onsite Wastewater Disposal 

Money’s Mushrooms - Pescadero, CA.  Constructed two monitor well for use in evaluating water quality and determining the direction of groundwater flow at the location of a wastewater disposal system. 

Sea Ranch Lodge – Sea Ranch, CA.  (with Fall Creek Engineering)  Conducted elevation survey for use in determining the direction of groundwater flow at the location of an onsite wastewater disposal system. 

Furtado Dairy – Morgan Hill, CA.  (with Fall Creek Engineering)  Constructed three monitor wells to evaluate potential impacts from an onsite wastewater disposal system.  Developed, sampled, and surveyed monitor wells. Conducted well survey of nearby domestic supply wells. 

Ranch – Paicines, CA.  (with Fall Creek Engineering)  Constructed groundwater monitoring network of three monitor wells to evaluate potential impacts from an onsite wastewater disposal system. 

Bear Creek Winery – Lodi, CA.  (with Fall Creek Engineering)  Conducted groundwater monitoring to evaluate potential impacts from an onsite wastewater disposal system. 

Steele Creek Resort - Berryessa, CA.  (with Brunsing Associates)  Conducted water balance analysis to determine volume of spray irrigation that could be discharged to ground from a treatment system. 

Brookdale Lodge - Brookdale, CA.  (as ASE)  Installed a ground water monitoring network to monitor the potential impacts from an onsite wastewater disposal system. 

Phase I and II Environmental Assessments 

Highway 1 Pedestrian Bridge – Santa Cruz, CA. (for Gilchrist and Associates) Conducted a Phase I Environmental Assessment for an area proposed for construction of a pedestrian bridge over Highway 1. 

Murray Street Bridge – Santa Cruz, CA. (for Gilchrist and Associates) Conducted a Phase I Environmental Assessment for an existing bridge slated for seismic retrofitting. 

Post Ranch – Big Sur, CA.(for Fall Creek Engineering) Conducted Phase II sampling at a former maintenance yard where oil had been spilled. 

Underground Tank Projects 

BECO, Inc. – San Carlos, CA.  Conducted a soil and groundwater investigation at the site of former underground storage tanks used for aviation gasoline and jet fuel.  Work included drilling soil borings for collection of soil, grab groundwater samples; monitor well construction, development, and sampling.  Supervised tank removal.  

County of San Mateo – Princeton, CA.  Conducted a soil and groundwater investigation into the lateral extent of soil and groundwater contamination at the site containing former underground storage tanks used for gasoline and diesel.  Scope of work competed included drilling soil borings for construction of monitor wells, and collection of soil and grab groundwater samples.  Currently Atlas is conducting quarterly monitoring and gradient determination of four monitor wells located on site.  

County of San Mateo – San Mateo, CA.  Conducted a soil and groundwater investigation into the lateral and vertical extent of soil and groundwater contamination at the former Hillcrest Center, site of a former underground storage tank used for gasoline. Scope of work competed included drilling soil borings for collection of soil and grab groundwater samples; supervision of over-excavation; monitor well construction, development, and sampling. 

County of San Mateo – San Mateo, CA.  Conducted a soil and groundwater investigation into the lateral and vertical extent of soil and groundwater contamination at the Tower Road motor pool, site of a former underground storage tank used for gasoline.  Scope of work competed included drilling soil borings for collection of soil, grab groundwater samples; monitor well construction, development, and sampling; soil vapor sampling; preparation of corrective action plan (CAP) consisting of over-excavation; supervised implementation of CAP. 

CDF Station – Pescadero, CA.  Drilled and constructed five monitor wells at an active fire station that was the site of former underground storage tanks used for gasoline and diesel.  Conducting quarterly monitoring and gradient determination of three monitor wells located on site.  Conducted well survey and yield test. 

Burlingame Fire Department - Burlingame, CA.  Drilled and constructed a monitor well at an active fire station that is the site of an underground storage tank.  Conducting quarterly monitoring of groundwater at two active fire stations. 

Burlingame School District - Burlingame, CA.  Drilled and constructed a monitor well at an elementary school which formerly contained a fuel oil UST. 

City of Pacifica - Pacifica, CA.  Supervised re-excavation of a former diesel UST leading to site closure.  At another site constructed three monitor wells, determined gradient, and sampled wells.  Presently conducting quarterly monitoring. 

County of San Mateo - Menlo Park, CA.  Conducted an investigation of the lateral extent of groundwater contamination at the site of a former leaking underground storage tank.  Scope of work included soil borings, monitor well construction, and groundwater sampling.  

County of San Mateo - Redwood City, CA.  Constructed a monitor well at the site of a former fuel oil tank.  Sampled monitor well and determined groundwater gradient in the site vicinity.  Sampled monitor well four quarters leading to case closure. 

County of San Mateo - Redwood City, CA.  Drilled borings and collected soil samples to determine the lateral and vertical extent of hydrocarbon contamination at the county motor pool, a fueling and repair facility.  Constructed and sampled monitor wells at the site.  Designed, constructed, and monitoring a pumping system which discharges contaminated groundwater into the sanitary sewer. 

Migotti Ranch - Salinas, CA.  Supervised excavation and sampling of the site of a former gasoline UST.  Successfully demonstrated fuel leak had not impacted site soils. 

Private Party - Burlingame, CA.  Constructed two monitor wells at an automotive repair facility that had been the site of two underground storage tanks.  Sampled soil, supervised well construction and development, and sampled groundwater. 

South County Fire Association - San Carlos, CA.  Prepared specifications, conducted inspections, collected samples, and documented removal of an underground storage tank at an active Fire Station.  

Towne Ford Sales - Redwood City, CA.  Prepared Workplan, determined gradient, drilled new monitor well at site of former underground storage tank. 

Van Arsdale/Harris Lumber Co. - Brisbane, CA.  Prepared a closure report for submission to San Mateo County Department of Health Services for a former underground fuel tank site overlying a landfill.  Collected chemical data to demonstrate that the distribution of petroleum hydrocarbons in the local groundwater was unrelated to the subject site and attributable to landfill disposal.  Conducted a groundwater survey of the area to demonstrate the lack of groundwater resources. 

Volonte Trust - South San Francisco, CA.  Drilled and constructed two monitor wells and one piezometer at the site of a two former USTs.  Developed and sample wells, determined gradient. 

Landfills

Pescadero Landfills – County of San Mateo, Pescadero, CA.  Conducted investigation of landfill cap, waste, and subsurface through drilling of borings into waste unit.  Constructed monitor wells for groundwater sampling around perimeter of landfill.  Prepared DRAFT Closure Plan for one inactivelandfill. 

Half Moon May Landfill – County of San Mateo, Half Moon Bay, CA.  Conducted investigation of landfill cap, waste, and subsurface through drilling of borings into waste unit.   

L&D Landfill – Private Party, Sacramento, CA. (as ASE) Conducted landfill gas and leachate monitoring and assisted client relations with Local Enforcement Agency.  

Frontierland Park Landfill - City of Pacifica, Pacifica, CA.  (as ASE) Conducted landfill gas and leachate monitoring and assisted client relations with LEA.