Laserfiche WebLink
Tri Regional Recommendation Page 4 of 24 <br /> 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 /> reconciliation methods. Containing and disposing of investigation- <br /> derived waste. <br /> • Summary of initial site information collected <br /> during UST removal including: <br />