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MERIDIAN
ENVIRONMENTAL CO.
The following is a brief synopsis of projects completed by Meridian. We are happy to share our work experience, so that you can gain a feeling of the scope and breadth of our experience.
JAMES CITY COUNTY STORMWATER GROUP
Williamsburg/James City County Public Schools Vehicle Maintenance - Operational Stormwater Pollution Prevention Plan (SWPPP)
Meridian Environmental Co. was requested by the JCC Stormwater staff to prepare a SWPPP document to meet the requirements of JCC's MS4 permit for evaluating the Williamsburg-James City County (WJCC) Public Schools Bus Garage which is a high priority facility. Meridian's principal, Jim O'Brien, PG was the Project Manager for this project and developed a scope of work for the Bus Garage to satisfy the following goals: (1) implement and maintain Best Management Practices (BMPs) that identify, reduce, eliminate, and/or prevent the discharge of stormwater pollutants; (2) prevent violations of surface water quality, ground water quality, or sediment management standards; and (3) eliminate the discharges of unpermitted process wastewater, domestic wastewater, non-contact cooling water, and other illicit discharges to stormwater drainage systems.
The primary focus of Meridian was completing the SWPPP to satisfy include the following: (1) identify potential sources of stormwater pollution that may affect the quality of stormwater discharges associated with the Bus Garage Facility; (2) evaluate the potential for stormwater contamination from the identified potential sources; (3) identify the stormwater BMPs that will be used at the Bus Garage Facility for the prevention and control of pollutants in stormwater discharges and (4) identify operations, maintenance, inspections and record keeping needed for these BMPs. Meridian did this through interviews of stormwater and facility staff; field site visits in both wet and dry conditions; inventorying potential pollutants while observing operations; taking photographs of existing conditions; understanding existing building features and reviewing construction drawings; and synthesizing all of the collected information into a user-friendly document that could be understand and implemented by all levels of facility staff.
HH HUNT LAND, LLC
Various properties throughout the Commonwealth of Virginia
Meridian Environmental Co. works with developer, HH Hunt Land, LLC to perform due diligence investigations in general accordance with the ASTM E1527-13 Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessments Process for parcels of land that they purchase for development of residential communities. Typically, the parcels range from 40 acres to several hundred acres, while some are small for infill projects others have been over a 1,000 acres. Meridian applies the ASTM Standard in its evaluation process of the parcel(s) and collects regulatory database information, reconstructs a site history back to 1940 using historical aerial photography, topographic maps and city directory information, as available coupled with a site visit that involves a walk-over of the property in an overlapping manner.
Observations are noted and photo-documented for presentation in the final report document. Meridian evaluates the data collected looking for Recognized Environmental Concerns (RECs) that may be present on the site or located on off-site properties that could have an adverse impact on the subject property. RECs could include leaking USTs, uncontrolled dumping, drums, septic systems, unknown containers, PCBs, odors, stressed vegetation, USTs and/or ASTs, wells, stained soil or pavement and hazardous materials.
R.B. HINKLE CONSTRUCTION CO.
Site Remediation, Spill Prevention Control & Countermeasure
(SPCC) Plan Development
R.B. Hinkle Construction Co. contracted with Meridian Environmental Co. to evaluate the conditions relating to its aboveground storage tanks (ASTs) used for filling vehicles and equipment in their storage yard. The ASTs consisted of four 550-gallon gasoline tanks and four 550-gallon diesel tanks. In addition to these new fuel tanks, R.B. Hinkle had a 500-gallon used oil AST in its mechanics shop, along with three 275-gallon new oil ASTs and two 55-gallon drums for off-road diesel and heavy duty transmission oil. The work effort for Meridian consisted of testing the soil from underneath the ASTs in the storage yard for petroleum hydrocarbon impacts and then excavating the petroleum impacted soils and replacing it with new soil and gravel. Additionally, there was a location in the storage yard that was formerly used to store the fuel tanks and it was impacted by some leakage. This area was also remediated by excavating and disposing of those petroleum impacted soils.
Once the site area of the fueling tanks was remediated, Meridian recommended spill containment equipment to reduce and collect any de minimis spills and releases from the ASTs. Meridian also performed a general housekeeping inspection of the mechanics shop and made recommendations for spill containment for the ASTs and general shop operations to reduce spills and leaks. A facility SPCC Plan was prepared by Meridian to include the greater than 5,300-gallon aggregate storage capacity of all of the ASTs and drums. This SPCC plan detailed response actions in the event of a spill or release, along with maintenance of spill containment equipment and the proper sizing and placement of spill kits at the facility. The final products produced by Meridian included the SPCC plan for the Facility; Excavation Evaluation Report for the ASTs and a Housekeeping Letter with photographs for the mechanics shop.
NORFOLK STATE UNIVERSITY
UST Remediation by closure in place
Meridian Environmental Co. was tasked with follow-up work that its Principal, Jim O'Brien, PG had started while at another firm. The project included the completion of an inventory and evaluation of the heating oil USTs at Norfolk State University (NSU). Drilling work using a GeoProbe to collect soil and groundwater samples was used to determine whether or not the USTs required removal or could be closed in place. The work effort required direct interaction with a DEQ Case Manager at the Tidewater Regional Office to complete the necessary tank registration forms and gain approval for in-place closure of the USTs on the campus after submittal of the assessment reports for each UST. It was determined that all four USTs, one each at Echols Hall, Gill Gymnasium, Scott Hall and the Facilities Building could be closed in place by filling them with a concrete slurry mix. The USTs ranged in capacity from 5,000 to 20,000 gallons. The USTs had varying amounts of heating oil remaining in them.
Meridian personnel worked with RECO Biotechnology (RECO) to remove the heating oil from the USTs and reimburse NSU at the New York Harbor rate for each gallon removed. NSU received a check for about $19,000.00 for heating oil pumped. Once the heating oil was removed from each UST, RECO returned to clean the USTs and remove the final sludge and wash water. At this point, the USTs were ready for closure in place. Meridian supervised a crew that accessed each UST through its manway for filling the USTs with a concrete slurry mix. Meridian documented the closure process by taking field notes and photographs that were presented in four separate closure reports to the DEQ Tidewater Regional case manager. The field actions and reports were approved by the DEQ case manager and letters of closure were provided to NSU.
