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Tri Regional Recommendation Page 4 of 24
<br /> a Appendix A
<br /> implement the approved Site Investigation Work-
<br /> plan If workplan revisions are necessary,the dis- -- Date of tank(s)removal and condition of
<br /> charger may submit a letter addendum briefly the tank system,
<br /> detailing any proposed changes to the workplan or — Table of soils and/or water analyses,
<br /> additional work — Soil sampling and analytical procedures
<br /> used,
<br /> The following background information is to be — Stratigraphy,identified from excavations
<br /> included in the initial Site Investigation Workplan or borings,
<br /> — Depth to groundwater, if encountered,
<br /> • Name and address of the site, the discharger and
<br /> and contact person, if different — Description of any unusual site condi-
<br /> tions encountered
<br /> • An appropriately scaled area map showing
<br /> the site location relative to nearby landmarks • Estimate of the quantity and composition of
<br /> such as rivers and other surface water fea- contaminant released into the environment
<br /> tures, highways,urban or industrial areas, and how the estimate was derived
<br /> etc
<br /> • Include initial abatement actions including a
<br /> • A scaled drawing of the site showing adja- description of liquid or solid wastes re-
<br /> cent streets and buildings, all above ground moved and where they were disposed with
<br /> structures including canopies and power copies of all manifests
<br /> lines, underground structures including fuel
<br /> USTs,utility lines (water, sewer, electrical, In addition to the background information re-
<br /> natural gas, and communication lines),bur- quested for the Site Investigation Workplan listed
<br /> ied pipes, septic tanks, and leachfields The above, the methods and procedures that will be
<br /> map scale should be appropriate to show site used to investigate both impacted soil and ground-
<br /> features water should be included,and an estimated time
<br /> schedule for completion of proposed work must
<br /> • Pertinent information that could influence also be included with the workplan
<br /> the migration of contaminants from the site Specific to the soil contamination, describe or iden-
<br /> is to be included in the workplan including tify the method,technique, and/or rationale for
<br /> topography, climate, local geology and sub-
<br /> surface soil conditions,local and regional • Collecting soil, soil gas, and sediment sam-
<br /> hydrogeology,nearby surface waters ples, as appropriate
<br /> • History of tank installation, type of products • Determining the number of proposed bore-
<br /> stored, operation, and repair holes, sampling locations,and sampling
<br /> depths
<br /> • Layout of all former and existing USTs and
<br /> piping systems on the property,with each • Determining the extent of soil contamination
<br /> tank labeled for content from samples collected
<br /> • History of leaks, spills and accidents at the • Analyzing soil, soil gas, and sediment sam-
<br /> site involving the tank system and dispens- ples by appropriate federal EPA Methods or
<br /> ers other non-proprietary, performance-based
<br /> analytical procedures
<br /> • Tank testing results, dates, and inventory
<br /> i
<br /> reconciliation methods Containing and disposing of investigation-
<br /> derived waste
<br /> • Summary of initial site information collected
<br /> during UST removal including
<br />
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