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1. General
A
work plan includes pertinent site information and instructions in sufficient
detail that contractors will be able to prepare accurate bids for site cleanup,
and the successful bidder has sufficient guidance to clean up the site without
delays, cost increases, or other problems. Site information should include a brief description of the site;
including area, terrain, access, types and estimated quantities of wastes. Instructions should detail how the cleanup
is to be accomplished; including equipment and facilities to be on the site
during remediation, health and safety considerations, recycling and other
disposal requirements, construction and environmental controls (site access, weight
and vehicle restrictions, dust and water abatement, etc.), identification of
hazardous wastes and method for handling these wastes (if any), and final site
disposition.
A
work plan or scope of work is required as part of the application for local
enforcement agency grants, matching grants to local governments and loans to local governments. Preparation of the work plan may involve
technical abilities beyond those available by the applicant. Local governmental agencies such as
public works, planning department, recycling agencies, environmental review and
assessment, or others may be able to provide assistance. Consulting engineers may also be able to
provide assistance with preparation of a work plan.
This
document outlines typical items that should be considered in development of a
work plan. Some items may not be
relevant to all sites; some sites may require additional items. This outline is meant for guidance only, it
is not considered a complete or thorough "all things considered" document.
II. Work Plan Components
A. Site Description
- Physical description of site; location,
size, terrain, utilities, road access, etc.
- Brief history of problems at site and
actions taken.
- Site characterization and copies of any
investigations/evaluations.
- Expected condition of land after site
cleanup; land to be used for agriculture, development, or park, etc.
- State any known or anticipated conditions
that may limit contractor's ability to complete the site cleanup in a timely,
cost-effective manner.
B. Mobilization/Job Logistical Preparation
- Storage/office/operational base for contractor
- Eating and rest areas, hand and eye washing
and sanitary facilities.
- Site water supply, communications and other
utilities.
- Traffic control and warning signs for access
to site, as well as on-site (if necessary).
- Site security; fencing and barriers to site
access during remediation.
- Move-in remediation equipment; bins, water
trucks, crushers, wood chippers, shredders, etc.
C. Health and Safety (H&S)
- Site specific health and safety plan signed by a
certified Industrial Hygienist.
- On-site OSHA 1910.120-trained health and safety monitor with authority to enforce H&S requirements.
- All personnel briefed on health and safety requirements before working at site.
- Daily/weekly safety briefings as required.
D. Cleanup Activity
- Plan for remediation; including:
a) Inventory of wastes on site; including
location and disposition of wastes, types and quantities of wastes, hazardous
materials, etc.
b.) Review of permitted landfills/disposal sites
in area; including types of materials handled by the landfills, tipping fees,
distance from site, traffic and road constraints, daily capacity of landfills,
etc.
c) Analysis of recycling options; matching
wastes at site with recyclers and evaluating cost/benefit of recycling vs.
disposal at landfill.
d) Evaluation of alternative disposal
solutions; depending on wastes at site, there may be alternatives to disposal
at landfills. Efforts should be given
to identify recycling options for as much waste as possible.
- If there are public employees that are
trained in hazardous material identification and classification that could be
made available during remediation, this would reduce contractor's concerns and
could result in lower bids. If disposal
of hazardous materials (batteries, waste oils, paints, petroleum containers,
etc.) can be arranged prior to or during construction, cost may also be
reduced.
- Monitor for health and safety concerns as
typical for waste removal operations.
E. Excavate, Sort and Segregate
- Procedures for isolation/testing/disposal of
hazardous wastes, if encountered.
a) If burn ash is detected, ash samples should
be taken and analyzed before removal of burn ash.
- Identify materials buried at site, depth of
burial, and estimated quantity. Method of excavation/removal and disposal of
buried waste should be detailed.
- Considering volume and types of waste,
determination of method of sorting should be made:
a) Hand-sorting - tires, metallic discards,
white goods, lumber, batteries, etc.
b.) Machine-sorting - Inert materials (soil,
concrete, or asphalt), ferrous metals, co-generation fuels, and landfill
wastes. Also consider types of
equipment required; including grizzly/trommel screens, electromagnets,
chippers, shredders, etc.
- Water truck(s) should be on-site at all
times during remediation to reduce dust generated by the excavation, sorting
and preparation of wastes.
- Erosion and other environmental (noise,
odor, vector, etc.) controls should be considered and addressed.
- Clean soils from excavation(s) should be
stored and protected from contamination for later use as backfill or with site
grading.
- All excavation and trenching shall comply
with applicable safety standards.
F. Prepare Materials for Disposal or Recycling
- An area of the site should be cleared for
storage of segregated wastes, loading these materials, and weighing haul trucks
(if necessary). Attempts should be made
to minimize double handling of wastes.
- Consider cost of on-site vs. off-site
recycling efforts; including reduced cost of transporting smaller volumes of
material.
a) Crush concrete and asphalt for reuse as
road base/subbase, erosion protection or ground cover.
b) Chip wood waste/brush for reuse as fuel,
ground cover, soil amendment, etc.
c) Shred, bale or compact metals to reduce
volume of materials transported.
d) Compact materials going to class III
landfills to minimize volume, both from site as well as at landfill.
G. Load and Haul
- Load and haul during sorting or preparation
of materials to extent feasible; reduce double and triple handling of materials.
- Consider size and type of trucks to be used
for transport relative to haul road width and weight limitations, traffic type
and volume, permits required for larger equipment, working hours at site, etc.
- Capacity of disposal site(s) should be
considered in evaluation of equipment for hauling wastes and number of days
allowed for site remediation. This factor
may also affect choice of equipment used on site and/or size of labor force.
- Refuse and loose materials shall be covered
during haul.
- Establish a method of measurement for
payment. Payment by ton for each type
of material leaving the site will require installation, operation and
maintenance of some type of weighing scales at site. Although perhaps more costly, other methods of measurement could
be by volume (cubic yard), hourly charges for labor and equipment, or lump sum.
- If imported materials are required for
proper site grading, potential sources of material should be identified,
especially any near route from disposal sites. Making double use of hauling equipment will result in substantial cost
savings.
- Provide personnel to direct/control traffic
at site access points during hauling operations (if required).
- Maintain site access points;
cleaning/sweeping public roads as required throughout remediation.
H. Final Site Work and Demobilization
- Soils tests should compare soils
under/adjacent to disposal site with background levels, and should determine
contamination by materials or substances found in the wastes. Remove and dispose of contaminated soils as
required for clean closure. Testing
should not be part of the remediation contractor's contract; but supplied by an
independent agency or firm.
- Backfill excavations with compacted clean
soils from site or imported borrow. If
needed, specify type of material acceptable as imported borrow.
- Grade site, construct drainage facilities
(if necessary), and provide vegetative cover or other means of erosion control.
- Install permanent fence, posts, barriers or
other means to restrict site access. Install signage alerting public that dumping is illegal.
- Remove Contractor's equipment, plant,
materials, etc. after wastes removed from site, but prior to final inspection
and acceptance of remediation effort. Temporary warning and guidance signs should not be removed until after
final acceptance.
- Board may conduct field management reviews
during the remediation. Final
inspection and acceptance by Board staff is required following project
completion before final payment can be made.
- Provide public notification of site cleanup
and cost as deterrent to further illegal dumping.
- Documentation of site remediation in public
records, as may be locally required.
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