Aboveground storage tank requirements

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Segment name or# End oint A End oint B Inside Diameter Fabrication Substance s Existin Safe uards IX. Site Hydrogeology (New and expanding facilities only) Requested information may be found in engineering reports or site assessments. Information requested is for facility as a whole; however, if significant geological differences exist within the facility, give information as applicable to each containment area. Avera e or estimated de th to round water ft beneath tanks: Native soil classification s , between surface and roundwater: Calculated or estimated average vertical permeability to water of native soil cm/sec : Avera e or estimated de th to bedrock ft : Bedrock t e and formation name: Name of the nearest Class 2 surface water and distance to the nearest tank at the facility(surface water must be shown on location ma : Discuss any known tank-or piping-related site contamination, or an investi ation indicatin no contamination: X. Suggestions (Existing facilities only) If there is any requirement in the current permit which in the view of the applicant is unnecessary, or for which a less burdensome alternative exists which would accomplish the same goal, please identify and briefly explain. XI. Attachments Required of all applicants: 1. Facility layout(minimum scale: 1" = 100')showing the facility with the following marked: • All tanks as numbered or named in VI.A. and B. • Boundaries of all secondary containment areas as numbered in VII. • Substance transfer areas(connection point between tank and transfer vehicle)for each tank listed in VI.A., including any loading rack • Endpoints and approximate run of each long-run underground line segment listed in VIII.C. • Buildings • Roads and railroad tracks • On-site ponds 2. Location Map showing the area surrounding the facility for a distance of at least one mile in all directions(a USGS Quad map works well for this purpose), including: • Nearest Class 2 surface water • Nearest towns and cities Required for new and expanding facilities only: • Construction specifications and drawings for field-erected tanks and secondary containment areas. • Permeability test reports per MPCA testing guidelines for any native soil, engineered clay liner and soil amendment containment areas. • Survey and volume calculations for any native soil,engineered clay liner and soil amendment secondary containment areas. Submit actual drawings showing site contour and elevations. Survey may be up to three years old if no new containment areas have been constructed and no modifications made to containment areas since the survey was conducted. A survey over three years old may be submitted if a licensed surveyor has recently shot the lowest part of each dike and the highest part of the bottom of each diked area to determine if the original elevations remain accurate. • Containment area measurements and calculation of available containment volume for each area not subject to survey. t-a3-25 4/4/07 Page 7 of 8