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Record of Decision System (RODS)

SAND, GRAVEL AND STONE

Abstract

Site Name:  SAND, GRAVEL AND STONE
Address:  RTE 40 
City & State:  ELKTON  MD  21921
County:  CECIL
 
EPA ID:  MDD980705164
EPA Region:  03
 
NPL Status:  Currently on the Final NPL
 
ROD Type:  Record of Decision
ROD ID:  EPA/ROD/R03-85/015
ROD Date:  09/30/1985
Operable Unit(s):  01
 
Media:  GROUNDWATER SEDIMENTS SOIL SURFACE WATER
 
Contaminant:  ACETONE, ARSENIC, CADMIUM, CHLOROFORM, CHROMIUM, ETHYLBENZENE, HEAVY METALS, METHYLENE CHLORIDE, PHENOLS, TOLUENE, VOCS, XYLENE
 
Abstract:  THE SAND, GRAVEL AND STONE SITE CONSISTS OF APPROXIMATELY 200 ACRES, AND IS LOCATED IN ELKTON, CECIL COUNTY, MARYLAND. THE SITE WAS PREVIOUSLY OPERATED AS A SAND AND GRAVEL QUARRY UNDER THE NAME MARYLAND SAND AND GRAVELSTONE COMPANY. CURRENTLY, THE SITE IS OCCUPIED BY THE SAND, GRAVEL, AND STONE COMPANY. IT WAS REPORTED THAT ABOUT THREE ACRES ONSITE WERE USED FOR THE DISPOSAL OF WASTE PROCESSING WATER, SLUDGE, STILL BOTTOMS, AND ABOUT 90 DRUMS OF SOLID AND SEMISOLID WASTE BETWEEN 1969 AND 1974. ON JULY 16, 1974, 1,300 GALLONS OF FLAMMABLE PRODUCTS IN DRUMS WERE REPORTEDLY RECEIVED AND DUMPED. ON AUGUST 5, 1974, 5,000 GALLONS OF NONFLAMMABLE MATERIALS WERE RECEIVED AT THE SITE. PITS, EXCAVATED ONSITE, WERE USED AS SURFACE IMPOUNDMENTS, WHERE APPROXIMATELY 700,000 GALLONS OF WASTE WERE DUMPED.

REMEDIAL MEASURES AT THE SITE WILL BE IMPLEMENTED IN TWO PHASES. SELECTED REMEDIAL ACTIONS APPROVED AT THIS TIME INCLUDE, EXCAVATION AND OFFSITE DISPOSAL OF BURIED MATERIALS (DRUMS AND/OR TRUCKS) AT AN APPROVED RCRA FACILITY; INSTALLATION OF SHALLOW GROUND WATER INTERCEPTORS DOWNGRADIENT FROM THE WASTE SOURCES; COLLECTION AND TREATMENT OF CONTAMINATED GROUND WATER; RECIRCULATING THE TREATED EFFLUENT TO THE PONDS AND SHALLOW AQUIFER OR DISCHARGING TO MILL CREEK. TOTAL CAPITAL COST FOR THE SELECTED REMEDIAL ALTERNATIVE IS ESTIMATED TO BE $7,095,000 WITH O&M COSTS APPROXIMATELY $753,000 PER YEAR. THE DECISION ON THE REMEDIAL MEASURES FOR THE CONTAMINATED SOILS, THE LOWER UNCONSOLIDATED SAND AND BEDROCK AQUIFERS, FINAL SITE CLOSURE REQUIREMENTS AND POST CLOSURE OPERATIONS AND MAINTENANCE ACTIVITIES HAS BEEN DEFERRED UNTIL THE PHASE II RI/FS IS COMPLETED.
 
Remedy:  THE REMEDIAL MEASURES WILL BE CONDUCTED IN TWO PHASES AT THIS SITE.

THE REMEDIAL MEASURES APPROVED AT THIS TIME INCLUDE EXCAVATION OF BURIED MATERIALS (DRUMS AND/OR TRUCKS) AND OFFSITE DISPOSAL OF HAZARDOUS MATERIALS AT AN APPROVED RCRA FACILITY. INSTALLATION OF SHALLOW GROUND WATER INTERCEPTORS DOWNGRADIENT FROM THE WASTE SOURCES TO COLLECT THE CONTAMINATED GROUND WATER AND LEACHATE FOR TREATMENT AT AN ONSITE TREATMENT PLANT BEFORE RECIRCULATING TO THE PONDS AND SHALLOW AQUIFER OR DISCHARGING TO MILL CREEK. THE APPROVED MEASURES ARE BASED ON THE PHASE I REMEDIAL INVESTIGATION AND FEASIBILITY STUDY (RI/FS).

I HAVE DEFERRED A DECISION ON THE REMEDIAL MEASURES FOR THE CONTAMINATED SOILS, THE LOWER UNCONSOLIDATED SAND AND BEDROCK AQUIFERS, FINAL SITE CLOSURE REQUIREMENTS AND POST CLOSURE OPERATIONS AND MAINTENANCE ACTIVITIES UNTIL COMPLETION OF THE PHASE II RI/FS.
 
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