05-02-11 Drainage and Flooding Committee Meeting minutes

Browse Search

16. State PST List 0.5 Mile Radius 17. State TCEQ VCP List 0.5 Mile Radius 18. State Brownfield List 0.5 Mile Radius 19. Dry Cleaner List 0.5 Mile Radius 20. IHW List Adjoining 21. Local Hazmat Spills Site Specific Documented regulatory agency sites located within the ASTM prescribed minimum search distance will be identified and plotted on a composite site map. Physical Setting Sources USGS Topographic Map(s) will be reviewed to determine site topography and surface drainage patterns of the site and the surrounding area. Current and past structures, roads, well installations, and other improvements will be evaluated, as well as other pertinent physical features such as streams or water bodies. Federal Emergency Management Agency floodplain map(s) will be evaluated to determine if the subject property lies within a known floodplain. The appropriate Soil Survey from the USDA Natural Resource Conservation Service will be reviewed to determine the site's soil conditions and general surface geology of the area. General descriptions will be made of the subsurface hydrogeology based on information from USGS Groundwater Maps or other sources. Historical Use Information Historical Aerial Photographs will be obtained from aerial photography firms having inventory of the subject area. The photographs will be reviewed to evaluate previous land use characteristics for the property and adjacent parcels. The photographs will also be checked for possible oil and gas exploration activities, surficial anomalies associated with waste ponds or dumps, and previous commercial and /or industrial activities. A Chain of Title will be reviewed from the Harris County Clerk's records to identify site ownership from 1940 forward. The records will be reviewed to evaluate the potential for industrial or environmentally significant land use activities onsite, based on the identities of previous owners. This task will be subcontracted to a title search company. Local City Directories and Sanborn Fire Insurance Maps, if available, will be reviewed for listings of the types of past structures or business operations that may have existed on the property. In addition, Texas Railroad Commission Records will be reviewed to determine if oil and /or gas exploration or production has occurred on the site. This information will be obtained from a Regional Oil and Gas Survey Map prepared by Tobin Research, Inc. Task 2: Interviews and Agency Inquiries Owner /Occupant Inquiry Inquiries will be made of person(s) who may have knowledge of current or historical conditions associated with the subject property. One or more of the following individuals may be contacted for an interview: 1) Current Owner, 2) Owner's Representative, 3) Occupants or Tenants, 4) Adjacent Property Owners /Occupants. Interviews may be conducted in person, by telephone, or by written correspondence in the form of an Owner /Occupant Questionnaire. Berg•Oliver Associates, Inc. BOA Project Number 8310espr July 5, 2011