• Home
• About ATSDR
• Press Room
• A-Z Index
• Glossary
• Employment
• Contact Us
• CDC

ATSDR en Español

Search:

Skip directly to: content | left navigation | search

---

Find a Publication

1. ATSDR > Public Health Assessments & Consultations

PUBLIC HEALTH ASSESSMENT

M & T DELISA LANDFILL
OCEAN TOWNSHIP, MONMOUTH COUNTY, NEW JERSEY

APPENDICES

APPENDIX A

Figure 1. Location Map

Figure 2. Site Sketch Map

APPENDIX B

TABLE 1 - Range of Contaminant Concentrations in On-site Groundwater Monitoring Well Samples; M&T Delisa Site.

Contaminant	Aquifer Concentration* (ug/l)	Comparison Value++
		ug/l	Source
Arsenic	nd-13.8	0.02	CREG
Chromium	nd-222.0	50	RMEG
Lead	e-42.8	15	MCL(A)
Nickel	nd-156.0	100	LTHA

++ - comparison values listed are current as of December 1992
CREG - Carcinogenic Risk Evaluation Guide for 1x10^-6 excess cancer risk
RMEG - Reference Dose Media Evaluation Guide
MCL(A) - USEPA Action Level for drinking water
LTHA - USEPA Lifetime Health Advisory for drinking water
nd - not detected
e - estimated quantity below the contract required quantitation limit
Source: 1990 Final Remedial Investigation Report

TABLE 2 - Range of Contaminant Concentrations in On-site Air Samples; M&T Delisa Site.

Contaminant	Concentration (ug/m3)
	Outdoor Gas Vents*	Indoor Air
Benzene	nd-2,206.00	nd-5.90
Carbon Tetrachloride	nd	nd-1.00
Chloroform	nd-1.08	nd-16.10
Methylene Chloride	nd-70.60	nd-61.10
Toluene	nd-350.00	4.00-192.60
1,1,1-Trichloroethane	nd-13.81	1.20-58.20
Trichloroethene	nd	nd-3.90
Trichlorofluoromethane	7.85-88.24	nd-297.00
Xylenes	nd-29.41	nd-26.50

* - August 1988 gas vent data have not been included due to QA/QC problems
nd - not detected
Source: 1990 Final Remedial Investigation Report

TABLE 3 - Range of Contaminant Concentrations in On-site Surface Water Samples; M&T Delisa Site.

Contaminant	Surface Water Concentration (ug/l)	Comparison Value++
		ug/l	Source
Arsenic	nd	0.02	CREG
Chromium	nd	50	RMEG
Lead	e	15	MCL(A)
Nickel	nd	100	LTHA

++ - comparison values listed are current as of December 1992
CREG - Carcinogenic Risk Evaluation Guide for 1x10^-6 excess cancer risk
RMEG - Reference Dose Media Evaluation Guide
MCL(A) - USEPA Action Level for drinking water
LTHA - USEPA Lifetime Health Advisory for drinking water
nd - not detected
e - estimated quantity below the contract required quantitation limit
Source: 1990 Final Remedial Investigation Report

TABLE 4 - Range of Contaminant Concentrations in On-site Sediment Samples; M&T Delisa Site.

Contaminant	Sediment Concentration (mg/kg)	Comparison Value++
		mg/kg	Source
Arsenic	e-4.0	0.4	CREG
Chromium	8.1-14.2	250	RMEG
Lead	9.6-56.2	none	none
Nickel	nd-e	none	none

++ - comparison values listed are current as of December 1992
CREG - Carcinogenic Risk Evaluation Guide for 1x10^-6 excess cancer risk
RMEG - Reference Dose Media Evaluation Guide
nd - not detected
e - estimated quantity below the contract required quantitation limit
Source: 1990 Final Remedial Investigation Report

TABLE 5 - Range of Contaminant Concentrations in Off-site Private Well Samples; M&T Delisa Site.

Contaminant	Aquifer Concentration* (ug/l)		Comparison Value++
	Shallow	Deep	ug/l	Source
Arsenic	nd	nd	0.02	CREG
Chromium	nd	nd	50	RMEG
Lead	6.4	e	15	MCL(A)
Nickel	nd	nd	100	LTHA

++ - comparison values listed are current as of December 1992
CREG - Carcinogenic Risk Evaluation Guide for 1x10^-6 excess cancer risk
RMEG - Reference Dose Media Evaluation Guide
MCL(A) - USEPA Action Level for drinking water
LTHA - USEPA Lifetime Health Advisory for drinking water
nd - not detected
e - estimated quantity below the contract required quantitation limit
Source: 1990 Final Remedial Investigation Report

APPENDIX C

Environmental Control Design Features of
Seaview Square Mall

With the building of the Mall, a number of construction elements were implemented to provide environmental controls, i.e., refuse movement, gas control, and leachate control. These are summarized below:

Refuse Movement: The refuse material was found to be unsuitable for building support; therefore, the refuse material situated under the planned Mall was removed. The refuse was excavated down to the underlying soils. Then it was placed in areas already containing refuse. The area excavated was replaced with clean fill which was capable of supporting the buildings. The result was that the buildings are constructed within a low permeability bowl-shaped soil configuration composed of the naturally occurring Shark River Marl material beneath the Mall and the 3 to 10 foot thick clay barrier installed during construction to prevent landfill gas migration to the buildings.

Landfill Gas Control: The Mall construction implemented three measures to control the potential movement of landfill gas into the Mall. The first was the installation of the clay barrier discussed above. The second was the construction of passive control vents, consisting of perforated horizontal collection pipes located in the refuse attached to vertical pipes open to the atmosphere, which provide a preferential pathway for landfill gas migration and help prevent horizontal migration into the buildings. The last measure was to limit the permeability of the Mall's utility corridors (which contain sanitary sewers, electrical wiring, etc.) by placing all utility lines within one narrow corridor, replacing refuse in this corridor with clean soil, and compacting the soil to reduce permeability. Utilities which could not be placed within this corridor were enclosed in concrete.

Leachate Control: Leachate is generated when rainfall infiltrates into the ground and percolates through refuse material, or when ground water moves horizontally through the refuse. Four measures were implemented to minimize leachate generation: modifications to the storm water collection system, construction of a leachate collection system, installation of a clay barrier, and covering the surface of the landfill with pavement. The manner in which these measures were implemented is described below:

• The storm water collection system was designed to keep storm water separate from leachate by: (1) using the parking lot as a low permeability cap over the refuse to reduce infiltration of precipitation and collect storm water runoff; (2) constructing catch basins and storm drain pipes as close to the surface as possible; and (3) constructing storm water pipes designed to be impermeable to leachate infiltration.

• A leachate collection system consisting of a perforated pipe within a gravel trench situated to intercept ground water/leachate moving toward Deal Lake Brook was also installed. The liquid is then collected in a tank and discharged to a municipal waste water treatment plant.

• The clay barrier, which was installed between the refuse and clean soil fill, acts as a barrier to ground water/leachate flow, preventing it from migrating to or under the Mall buildings.

• The surrounding parking lot acts as a low permeability cap thereby reducing the volume of rain water which is available for leachate generation.

APPENDIX D

The following section was not available in electronic format for conversion to HTML at the time of preparation of this document. To obtain a hard copy of the document, please contact:

Agency for Toxic Substances and Disease Registry
Attn: Chief, Program Evaluation, Records, and Information Services Branch, E-56
1600 Clifton Road NE, Atlanta, Georgia 30333

Table of Contents

Agency for Toxic Substances and Disease Registry, 1825 Century Blvd, Atlanta, GA 30345
Contact CDC: 800-232-4636 / TTY: 888-232-6348 

Department of Health and Human Services