West Covina, California 92821
ENVIRONMENTAL, INC. has extensive experience in
conducting all aspects of environmental investigations,
from initial surveys and site remediation to final
negotiations with the regulatory agencies for site
clients are offered a broad range of environmental
consulting services that enables compliance with the
requirements of CERCLA/SARA, RCRA, and other federal,
state and local environmental programs.
its clients the following services:
» Property Transfer Assessments
(Phase I - III), Environmental Audits
» Site Hydrogeological Investigations
» Underground Storage Tank Management
» Remedial Engineering Services, Facility
» Groundwater Modeling Assessment
Waste and Landfill Studies
Wastewater Engineering and Groundwater Supply
Pollution Prevention Plans, NPDES
» Regulatory and Litigation Support
brief description of each service follows.
Transfer Assessments, Environmental Audits
ADvTECH has been involved with
numerous property transfer assessments under various
state regulatory programs.
performs these assessments to the highest standards,
meeting or exceeding the standards set forth by the
American Standards Testing Materials (ASTM) for
conducting property transfer assessments.
An environmental site assessment for a property
transfer is an evaluation of potential liabilities
associated with current and past practices which have
taken place on or near the property.
The key elements of an assessment include
research of site history, past operations and waste
disposal practices, soil and ground-water conditions,
and proximity of the site to surface or ground-water
drinking water supplies and known sources of
on the clients needs, a property transfer assessment can
range from a one day activity to a much more detailed
investigation of the site.
Site assessments are generally carried out in one or
more distinct phases.
The initial phase (Phase 1) helps to identify
areas of concern, where significant potential
contamination may have occurred.
A more detailed assessment may be necessary to
confirm or deny the presence or absence of contamination
(Phase II). If
the results of such an investigation confirms the
presence of contamination, a detailed site investigation
(Phase III) would be recommended.
In order to
select an appropriate remedy for an environmental
problem, an understanding of the physical site
conditions and the potential impact of the problem must
be fully understood.
The first step in a hydrogeologic investigation
of a site is the collection of soils, geologic, and
ground-water resources information, test boring data,
well logs, and water-quality data.
Data from such surveys would more than likely be
combined with drilling and sampling to confirm the
has the experience to develop solutions to the
environmental problems acceptable to the appropriate
Typically, a work plan would be prepared to
address the following types of issues:
» Data assessment and
identification of sources of chemicals, both in the soil
and ground water.
» Risk assessment of the
impacts of chemicals on drinking supplies, human
health, and the
» Installation and maintenance
of monitoring devices to assess ground-water
ADvTECH will assist our clients
with the following stages of an investigation: Site
Investigation Planning, Field Investigations, and Data
Management and Interpretation.
Storage Tank Management Programs
has provided assistance in the installation and removal
of underground storage tanks for both private and public
sector clients. Our
staff engineers will prepare required plans and
specifications for approval by the appropriate
Projects performed have included single tank
removal and investigation to complex multi-tank farm
projects demand a close alliance with various
contractors to assist our clients in implementing a
The success of our tank management program is a result
of thoroughly understanding the clients current demand
of any given fuel or chemical product, and projecting
usage well into the future.
Our project team has work very closely with the
regulatory agencies and local fire departments to assure
the timely completion and compliance of such projects.
RI/FS/ Feasibility Studies
ADvTECH has provided
environmental consulting services in response to CERCLA/SARA
and RCRA regulations since the regulations became
effective. Our project team has gained experience in developing and
managing the complex requirements of the Remedial
Investigation/Feasibility Studies (RI/FS) and Remedial
Design/Risk Assessment (RD/RA) processes at National
Priority Listing (NPL) Sites and have conducted numerous
RCRA facility investigation studies (RFI/RFA).
Our approach has been to delineate the cause and extent
of the problem, and determine the appropriate and most
economical remedial action that provides a lasting
solution at minimum cost to the client. ADvTECH breaks our
projects into small controllable segments and uses a
phased approach that creates greater control over
scheduling, cost allocation among Potentially
Responsible Parties (PRPs), and often reduces the
long-term liabilities and complexity of the final site
approach has been successfully applied to numerous RI/FS
investigations, RFAs and RFIs, ground-water and surface
water contamination assessments, and solid and hazardous
waste facility siting, design and monitoring projects.
involved in these studies include:
» Developing and Negotiating
Work Plans with State and Federal
» Conducting Hydrogeologic and
Contamination Assessments for
Soil and Ground Water;
» Identifying, Evaluating and
Developing Remedial Actions;
» Providing Oversight of
Remedial Investigations and Review of
Work Plans Prepared by other PRPs.
Engineering Services, and Facility Closure Programs
multi-disciplinary staff, upon completion of the site
characterization, can assess a broad range of
remediation alternatives including facility closure and
decontamination, soil removal, underground tank removal,
ground-water treatment, soil venting, and
Typical cleanup activities
provided/coordinated by ADvTECH
include the design and installation of ground-water
recovery, treatment and recharge systems; treatment of
contaminated soil; design and installation of
containment structures like slurry walls and hydraulic
experience in ground-water treatment systems ranges from
small facilities such as gasoline stations with leaking
underground storage tanks to large industrial complexes
with contamination problems requiring large-scale
Our systems are designed to meet your site
The proper closure and decommissioning of facilities
where hazardous materials and wastes have been in use or
stored generally results in a secure environment.
Our closure plans are aimed at mitigating any
past contamination problems and minimizing the risk of
future releases, building in safeguards so that any
potential releases are promptly detected and controlled.
and unsaturated modeling tools have been applied at a
variety of sites to assess the nature and extent of
chemicals in the subsurface. Planning and
management of groundwater resources and the protection
and cleanup of aquifers depend on the ability to
quantify groundwater flow and contaminant
transport. Quantification can be conducted by
field measurements and or mathematical modeling.
The models developed for groundwater are a series of
equations that simulate and predict the physico-chemical
responses of an aquifer subject to stresses such as
pumping or injection or migration of chemicals in the
A variety of groundwater modeling codes have been
developed to assess and evaluate conditions at the site,
used in conjunction with initial development of a site
conceptual model. The available models today
continue to be improved, allowing for more accurate
predictions of both the past, present and future
conditions of a site, particularly as it relates to the
cleanup and restoration of the site.
Waste and Landfill Studies
landfill is a complex facility requiring sophisticated
monitoring, operation, and maintenance techniques.
The process of siting a new land disposal
facility is an iterative process, from the
geologic/hydrogeologic, environmental, geotechnical, and
ADvTECH has supported land disposal facility
applications by conducting
site evaluations, including on-site surface and
subsurface investigations, alternative studies,
regulatory and community meetings, and administrative
utilizes a fully-integrated, multi-disciplinary team
to conduct these studies from the initial siting and
feasibility studies, through permitting, closure and
ADvTECH is prepared to assist with the full permit
document development, design, and construction
management services associated with monitoring systems
which address releases into the environmental media.
Engineering and Groundwater Supply
has practical knowledge and experience in environmental
and wastewater engineering, including design and
installation of air strippers, activated carbon
adsorbers, flare/catalytic incinerators, bioremediation
systems, and venting systems for wastewater treatment
and or groundwater/soil remediation.
Areas of research in environmental engineering
include: chlorination of halogenated aromatics by
ultrasound, fines/bacteria migration through porous
media, biodegradability of bitumen, surface properties
of composite mineral oxides, kinetics of activated
carbon adsorption, wastewater filtration, UV
disinfection, and design of flanged joints to meet the
stringent fugitive emission requirements.
With regard to groundwater supply, staff members have
completed comprehensive studies in various regions of
California in evaluating alternatives to develop
additional water supply from both surface and
Elements of review included physiographic
conditions of the study area, basin geology and
hydrogeologic characteristics, aquifer and storage
parameters, land-use and urbanization projections, water
reclamation potential, conjunctive-use operations, water
quality concerns, and legal and institutional aspects of
water resources planning and management.
Pollution Prevention Plans, NPDES
of the Stormwater Pollution Prevention Plan (SWPPP) is
to characterize the water quality of discharges from
storm sewers that drain residential, commercial and
industrial sites and to provide mitigation of water
quality impacts in order to comply with NPDES permit
and priority pollutants often found in urban runoff such
as metals and organics, pesticides, halogenated
aliphatic hydrocarbons, phenols, cresols, esters and
hydrocarbons, etc. are tested for their concentrations
and frequencies of occurrence.
Oil, grease and hydrocarbons, among others, are
often important sources of pollution to receiving waters
because of their non biodegradable nature.
These tend to accumulate in bottom sediments
where they may persist for long periods of time and can
adversely affect benthic organisms.
In California, the applicable Regional Water Quality
Control Boards recommend the incorporation of
appropriate Best Management Practices (BMPs) for
mitigation of potential pollution of urban runoff as an
integral part of the SWPPP.
ADvTECH can assist our clients in
the preparation of SWPPPs. One of the significant steps in the preparation of the SWPPP
is to develop a program to monitor the performance of
the BMPs, and evaluate whether additional BMPs are
construction general permit requires that a monitoring,
inspection, and maintenance plan with the following
objectives be a component of the SWPPP to: 1) inspect
BMPs annually, as well as prior to and after a storm
event; 2) aid in implementation of the SWPPP; and 3)
measure the effectiveness of the BMPs.
and Litigation/Technical Support
technical team can assist our clients in determining the
presence and magnitude of an environmental problem and
regulatory impact. Our systematic approach helps us develop cost-effective
responses that meet government clean-up and safety
project team maintains extensive experience and a
sophisticated working knowledge of environmental
regulations on a local, state, and federal level.
This regulatory support assists our clients with
effective negotiations and informed decision-making.
ADvTECH has provided litigation support for industrial
clients in cases involving ground-water development,
ground-water contamination of water supply, and waste
disposal practices and its effect on human health and
the environment. The
firm has extensive experience in assisting in the
negotiation of consent agreements and administrative
orders, assisting responsible parties at Superfund
sites, completing site closure, and preparing Remedial
This technical litigation support is provided to
the firm's clients in critical areas where the most
proven, experienced, and talented support is needed.
Depending on the circumstances, a number of
investigations have involved liaison with an array of
regulatory agencies, completion of complex permitting
requirements, or testimony before judicial committees.
Successful programs are a result of the depth of
experience of the individuals involved and the ability
to communicate that knowledge and experience to others.
The areas of support include:
Support - Expert Witness, Technical Planning
and Trial Graphics.
Negotiations - Local, State, Federal
Compliance, Post-Closure and Closure Monitoring, and
Cleanup Criteria for Contaminated Sites.
Management Consulting - Remedial Strategies,
Technology Assessment, and Property Transfers.
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632 S. Azusa
West Covina, California 91791
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