FINAL EMISSION MODELING REPORT - Superfund Records … · FINAL EMISSION MODELING REPORT ROSE HIL...

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FINAL EMISSION MODELING REPORT ROSE HILL REGIONAL LANDFILL SOUTH KINGSTOWN, RHODE ISLAND DECEMBER 1992 OFFICE OF EMERGENCY AND REMEDIAL RESPONSE

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FINAL EMISSION MODELING REPORT

ROSE HILL REGIONAL LANDFILL

SOUTH KINGSTOWN, RHODE ISLAND

DECEMBER 1992

OFFICE OF EMERGENCY AND REMEDIAL RESPONSE

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FINAL EMISSION MODELING REPORT

ROSE HILL REGIONAL LANDFILL

SOUTH KINGSTOWN, RHODE ISLAND

DECEMBER 1992

U.S. EPA Work Assignment No.: 3-694 Weston Work Order No.: 3347-33-01-4694

U.S. EPA Contract No.: 68-03-3482

L Prepared by: Prepared for:

Roy F. Weston, Inc. / REAC U.S. EPA / ERT

f. arianne Lovo-Aydil

eling Team Date

Thomas H. Pritchett Work Assignment Manager

#*4tjiS8?~%5&/2.W. Scott Butterfield Project Manager

/ Date

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TABLE OF CONTENTS

PAGE

LIST OF TABLES ii LIST OF FIGURES iii

1.0 INTRODUCTION 1

1.1 Objective 1 1.2 Site Description 1 1.3 Site Background 1

2.0 METHODS 2

2.1 Emission Model 2 2.2 Model Assumptions 3

2.2.1 Operational Data 3 2.2.2 Methane Generation Rate Parameters 4 2.2.3 Landfill Gas Composition 5

2.4 Modeling Scenario 5

3.0 RESULTS 6

3.1 Methane Emission Estimates 6 3.2 NMOC Emission Estimates 6 3.3 Air Toxic Emission Estimates 6

APPENDICES

APPENDK A Landfill Air Emissions Estimation Model Output, Scenario I APPENDIX B Landfill Air Emissions Estimation Model Output, Scenario n APPENDIX C Landfill Air Emissions Estimation Model Output, Scenario in

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0

LIST OF TABLES

Table 1 Methane Emission Rates Table 2 Average Methane Concentrations Table 3 Upper (95%) Confidence Limit for NMOC Concentrations Table 4 Emission Estimates for NMOCs Table 5 Upper (95%) Confidence Limit for VOC Concentrations, Scenario n Table 6 Upper (95%) Confidence Limit for VOC Concentrations, Scenario in Table 7 Current (1992) Emission Estimates for VOCs, Scenario n Table 8 Current (1992) Emission Estimates for VOCs, Scenario HI

n

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LIST OF FIGURES

Figure 1 Site Map

p p

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1.0 INTRODUCTION

This report describes the emission modeling performed for the solid waste section of the Rose Hill Regional Landfill Site in South Kingstown, Rhode Island.

1.1 Objective

The objective of this modeling study was to determine the emission rate of methane (CHJ and volatile organic compounds (VOCs) from the municipal solid waste landfill.

The compounds of concern for modeling purposes were identified as: vinyl chloride, 1,2-dichloroethene, trichloroethene, benzene, toluene, and ethylbenzene.

1.2 Site Description

y The Rose Hill Landfill Site is located in South Kingstown, Rhode Island on Rose Hill Road. The site, situated in an abandoned sand and gravel quarry, covers approximately 70 acres and

{, is divided into three disposal areas; a solid waste disposal area (approximately 28 acres), a sewage sludge disposal area (approximately 15 acres), and a bulk waste area (approximately 11 acres). Also on site is an active transfer station operated by the town. The terrain is slightly hilly with elevations ranging approximately 72 to 92 feet above sea level. There is an active gravel quarry to the west with several residential dwellings between it and the site. A site map of the solid waste landfill is shown in Figure 1.

[! 1.3 Site Background

0

The landfill site is owned by the town of South Kingstown and a private citizen. (The private citizens's portion was leased by the town during the time of disposal.) The town started solid waste disposal operations in 1967. In 1977, the landfill started accepting waste water treatment sludge, and in 1978, bulk waste - each in separate areas. The solid waste portion of the landfill along Rose Hill Road was closed and covered in the summer of 1982. During the construction of a transfer station from May to October 1982, the bulk waste disposal area also accepted solid waste. In October 1983, the regional landfill reached its state-permitted capacity and ceased all active landfilling operations.

f In the spring of 1990, after unsuccessful negotiations with the potentially responsible parties (PRPs), the Rhode Island Superfund Section of the U.S. Environmental Protection Agency (U.S. EPA) Waste Management Division (WMD) commenced a Remedial Investigation/Feasibility Study (RI/FS) under a federal lead. As a part of the RI/FS, U.S. EPA's contractor, Metcalf & Eddy, Inc., began the installation of temporary and permanent soil gas sampling points on and around the landfill.

Initial results of sampling conducted from June 17 through July 12, 1991, indicated the presence and migration of combustible gases in the vicinity of residential dwellings abutting the landfill. Ongoing investigations conducted for WMD by Metcalf and Eddy have detected methane and other VOCs in the soil in the immediate vicinity of the residential dwellings.

The U.S. EPA Emergency Planning and Response Branch (EPRB) also surveyed for gaseous contaminants utilizing Summa passivated canister sampling and gas chromatograph/mass spectrometry (GC/MS) analysis on September 2, 1992. The analysis detected concentrations of VOCs, which include but are not limited to, approximately 4000 parts per million (ppm)

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of vinyl chloride at well LFGR-8, located within 150 feet of the homes. Additional sampling has confirmed this data.

2.0 METHODS

2.1 Emission Model

The Landfill Air Emissions Estimation Model was used to determine emission rates of gases from the solid waste landfill. The algorithm is based on the Scholl Canyon Model which uses empirical parameters in order to describe the time dependent landfill gas emission rate. The transient emission rate is based on a first order kinetic expression for the rate of methane generation. The model is valid for estimating emissions over long periods of time.

l The model assumes that the total methane generation rate is at its peak upon initial waste • placement, after a negligible lag time during which anaerobic conditions are established in

the landfill. The gas production rate is then assumed to decrease exponentially (i.e. first order decay) as the organic fraction of the refuse decreases. The model takes into account the

jtri different ages of the waste by dividing the landfill into submasses of refuse accumulated in ' -J one year.

f

! Two empirical factors characterize the emission of methane from the landfill: the potential I methane generation capacity (L0, cubic meters per megagram [m3/Mg] of refuse) and the

methane generation rate constant (k, per year [1/yr]). The potential methane generation capacity depends only on the waste type. The methane generation rate constant depends on

, a number of factors including moisture content, availability of nutrients for methanogen, pH and temperatures.

The emission rate of the total landfill gas (Q^, in cubic feet per year (ftVyr), is based on the emission rate of methane (Qcm) and the percentage (by volume) of CH4 in the landfill gas as given by the following expression:

I

x 100 % CH4

P

c The emission of VOCs are linked directly to the emission rate of methane since the landfill gas acts as a convective transport mechanism for the volatile species. Accordingly, the emission rate (QJ for trace quantities of individual VOCs (air toxics) and total nonmethane organic compounds (NMOCs) are determined by the volumetric concentrations of the VOCs

j (i.e., part per million by volume [ppmv]) and the volumetric flow rate of the landfill gas shown below.

concentration (ppmv)Q ( ) = Q x ' yr "^ yr 106

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Hie volumetric flow rates are converted to a mass emission rate (E), in megarams per year (Mg/yr), using the following equation:

, Ql ( ) x yr V 848,960

The total NMOCs are converted from a volume basis to a mass basis by assuming a molecular weight equivalent to that of hexane.

Inputs required for the Landfill Air Emissions Estimation Model include the following:

• Amount of refuse placed in the landfill on an annual basis • Empirical methane generation parameters • Landfill gas composition

2.2 Model Assumptions

Site-specific inputs were used whenever available. In the absence of site-specific information, default values based on the type and location of the landfill were chosen. The inputs and the accompanying assumptions made in obtaining these inputs are outlined below.

2.2.1 Operational Data

The following information is known about the operational history of the solid waste landfill. During approximately the first six years, refuse was filled to road grade or lower and covered as needed. This occurred on the southerly section of the landfill and progressed in a northerly direction. From approximately 1975 to 1977, the same practice continued but more cover material was used and applied on a daily basis. During this period, the filling continued to the northerly limits of the site. The amount of waste placed in the landfill between 1967 and 1977 is unknown.

In 1977, the town of South Kingstown commissioned a site analysis and issued a plan of operation for solid waste disposal activities at the landfill. Subsequent to this, from 1978 until the landfill closure in 1982, a more formal filling practice was implemented. This included filling in cells, compacting in layers, and applying cover on a daily basis. During this period, the landfill accepted an average of 25,800 tons of waste per year (tons/yr).

The operational data used in the landfill model, based on this information, is summarized below:

Year of Landfill Opening 1967 Year of Landfill Closure 1982 Landfill Capacity 284,000 tons (257,000 Mg) Landfill Acceptance Rate 1967-1977 15,500 tons/yr (14,000 Mg/yr)

1978-1982 25,800 tons/yr (23,400 Mg/yr)

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The mass of refuse placed in the landfill'prior to 1977 was estimated based on site drawings of generalized soil properties from the commissioned site analysis'. Using the available cross-sectional plans, it was estimated that there was approximately 15 feet of refuse and medium dense silty gravelly sand (fill) in place covering an area of approximately 20 acres (96,800 square yards). This corresponds to a volume of 484,000 cubic yards (yd3).

The amount of waste in place was then determined by assuming a "good practice" cover to waste ratio of 1:4 and a compacted refuse density of 800 pounds per cubic yard (lb/yd3). Thus, the amount of waste in place was calculated using the following expression:

i ,, , , , , , , j3x 4 yd3 waste 800 Ib ton I Mass of refuse (tons) - volume (yd3) x £ x x f 5 yd3 total volume yd3 2000 Ib

This results in an estimated 155,000 tons (140,000 Mg) of waste in place. Thus, an acceptance rate of 15,500 tons/year (14,000 Mg/yr) was assumed for the years 1967­

' • 1977. The amount of waste placed in the landfill from 1978-1982 was documented as 25,800tons/year (23,400 Mg/yr).The landfill capacity based on these quantities of

I ; waste placement was calculated as:

25'900 tonsCapacity (tons) = 15,500 — x 10yr «• x 5 yrs = 284,000 tons

I 2.2.2 Methane Generation Rate Parameters

i The empirical parameters used for the methane generation rate were the suggested values obtained from several guidance documents2*3. The values are given below:

Methane Generation Capacity 8120 ftVyr i n Methane Rate Constant 0.04yr'

n The program default value used for the potential methane generation capacity represents the 80th percentile of the methane generation capacities of 931 surveyed landfills. This is expected to produce a conservative estimate of emissions. The methane rate constant was taken as 0.04 year'1 rather than the program default value of 0.02 year'1. This value was suggested for areas with above average precipitation rates and results in higher predicted emission rates than those obtained using the default value.

'Site Evaluation and Operational Plan for Municipal Sanitary Landfill for Town of South Kingstown, Rhode Island. CE Maguire, Inc. August 1977.

2Memorandum. Adams, L.,Radian Corporation, to SIP Inventory Preparers and EPA Regions. Subject: Using the Landfill Model for VOC Estimates. April 15, 1992.

Memorandum. ?'~Guinn, Y.C.,Radian Corporation, to Susan Thoraeloe. EPA. Subject: Use of Landfill Gas Generation Model to Estimate VOC Emissions from Landfills. June 21, 1988. Public Docket No. A-99­09.

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1

2.2.3 Landfill Gas Composition

Emission estimates were performed for three different scenarios. These scenarios use chemical compositions utilizing the following data:

I) model default values II) results from a soil gas survey of the landfill interior

conducted during the RI/FS m) results from a recent soil gas survey of perimeter sampling points

conducted by the U.S. EPA/ERT

Scenario I uses model default values to estimate methane and total NMOC emissions. The default values used in this scenario are expected to give conservative

f- estimates.

Scenario n uses data obtained as part of the Remedial Investigation/Feasibility Study conducted by Metcalf and Eddy in June/July of 19914. This study utilized a field gas chromatograph (GC) to measure the concentrations at 85 locations in the interior of the solid waste landfill.

' Scenario EQ uses data obtained during October 1992, by Roy F. Weston Inc./Response Engineering and Analytical Contract (REAC) for the U.S.

Environmental Protection Agency, Environmental Response Team (U.S. EPA/ERT) in response to a Region I evaluation5. This investigation consisted of sampling at a number of permanent sampling points located along the western, northern and southern perimeters of the landfill in order to assess off-site, sub-surface migration of landfill gas.

Both soil gas surveys (data used for scenarios n and HI) documented high levels of air toxics in the top half of the landfill and relatively low concentrations in the lower half. This variability was most notable for vinyl chloride, cis-1,2 dichloroethene and

I. total NMOCs.

fl 2.4 Modeling Scenario

The landfill was divided into two sections (shown on Figure 1) in order to characterize the r variability in VOC emission rates. The landfill split was based on observed VOC concentration gradients. Each landfill section comprises approximately SO percent of the landfill by area. Therefore, these sections were modeled as two separate landfills using half of the total capacity and half of the annual refuse in place. Total emissions were determined by summing the emissions from the two sections.

Average methane concentrations were calculated from soil gas data for the north and south sections of the landfill for the two soil gas surveys. Similarly, the soil gas data for specific

Correspondence to Mr. David Newton, dated 10/29/91. Contract No. 68-W9-0036, Work Assignment No. 18-1LA5, Rose Hill Regional landfill (RI/FS).

3Final Field Analytical Report, Issued to U.S. EPA/ERT, Contract No. 68-0303482, U.S. EPA Work Assignment No.: 3-694, December 1992.

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VOCs (air toxics) and total NMOCs was used to determine upper (95%) confidence limits for mean concentrations of these compounds.

3.0 RESULTS

The Landfill Air Emissions Estimation Model output summarizes the model parameters, the landfill gas composition and the operational data for the landfill. Emission rates are given for each constituent of the landfill gas from the time the landfill was opened (1967) until 19%. The model output for scenarios I, n and HI are found in Appendices A, B and C, respectively.

3.1 Methane Emission Estimates

The methane emission rate depends on the landfill capacity, operational data (refuse placed in landfill per year) and the empirical methane generation rate parameters. Therefore, the methane emission rate and the total landfill gas emission rate is the same for all of the various scenarios. The emission rate of methane is uniform within the landfill since it is assumed that the refuse is uniformly placed in the landfill. The methane emission rates are summarized in Table 1 for the year of closure (1982) and from 1992 to 1996.

3.2 NMOC Emission Estimates

The CH4 and NMOC concentrations used to estimate the NMOC emissions for each of the three scenarios are summarized in Table 2 and 3, respectively. Table 4 lists, for each of the three cases, the total NMOC emissions for peak emissions at the time of closure (1982), current (1992) emissions and emissions for the next four years.

3.3 Air Toxic Emission Estimates

Emission rates were estimated for the following compounds: vinyl chloride, dichloroethene, trichloroethene, benzene, toluene and ethylbenzene. These emission estimates are based on the average concentration of methane in the landfill, summarized in Table 2, and the upper (95%) confidence limit for the individual compounds. The upper confidence limits for the concentrations of selected air toxics for the north and south sections of the landfill are summarized in Tables 5 and 6. The corresponding emission estimates are presented in Tables 7 and 8. f

P

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Tables

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Year

r ftVyear Mg/yr

1982

1992

1993

1994

1995

1996

( !

TABLE 1 METHANE EMISSION RATES

ROSE HILL REGIONAL LANDFILL SOUTH KINGSTOWN, RI

DECEMBER 1992

CH4 Emissions CH4 Emissions (fWyear) (Mg/yr)

6.644 xlO7 1.255X103

4.453 x 107 8.413 x 102

4.279 x 107 8.084 x Iff

4.111 x 107 7.767 x 102

3.950 x 107 7.463 x 102

3.795 x 107 7.170xl02

Cubic Feet per Year Megagrams per Year

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TABLE 2 AVERAGE METHANE CONCENTRATIONS

ROSE HILL REGIONAL LANDFILL SOUTH KINGSTOWN, RI

DECEMBER 1992

Emission Scenario

Methane Concentration

Northern Section So

(Volume

uthern Se

%)

ction

I - Program Default 50 50

H- RI/FS Study 38.6 31.9

ffl - U.S. EPA/ERT 30.8 40.6

RI/FS Remedial Investigation/Feasibility Study U.S. EPA/ERT = U.S. Environmental Protection Agency /Environmental Response Team

l ;

i

n

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TABLE 3 UPPER (95%) CONFIDENCE LIMIT FOR NMOC CONCENTRATIONS

ROSE HILL REGIONAL LANDFILL SOUTH KINGSTOWN, RI

DECEMBER 1992

NMOC Emission Concentration (ppmv) Scenario

Northern Section Southern Section

I- Default 8000 8000

n- RI/FS 6209 265.04

m- U.S. EPA/ERT 889 103.6

NMOC Nonmethane Organic Compound ppmv = Parts Per Million, Volume RI/FS Remedial Investigation/Feasibility Study U.S. EPA/ERT = U.S. Environmental Protection Agency/Environmental Response Team

1:

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TABLE 4 EMISSION ESTIMATES FOR NMOCS ROSE HILL REGIONAL LANDFILL

SOUTH KINGSTOWN, RI DECEMBER 1992

NMOC Emission Scenario

1982

(Mg/yr)

1992

(Mg/yr)

1993

(Mg/yr)

1994

(Mg/yr)

1995

(Mg/yr)

1996

(Mg/yr)

f i

I - (Default)

n-RI/FS

107.90

57.04

72.33

38.24

69.51

36.75

66.78

35.30

64.15

33.91

61.65

32.59

IH- U.S. EPA/ERT 10.59 7.10 6.82 6.56 6.30 6.05

NMOC = Nonmethane Organic Compound Mg/yr = Megagrams per Year RI/FS Remedial Investigation/Feasibility Study U.S. EPA/ERT = U.S. Environmental Protection Agency/Environmental Response Team

r r

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TABLE 5 UPPER (95%) CONFIDENCE LIMITS FOR VOC CONCENTRATIONS, SCENARIO D

ROSE HILL REGIONAL LANDFILL

Compound

Vinyl Chloride

TCE

trans-1,2 DCE

cis-l,2DCE

Benzene

Toluene

Etbylbenzene

NMOCs

TCE trans-1,2 DCE = cis-l,2DCE VOC NMOCs mg/m3 =

r NA

SOUTH KINGSTOWN,DECEMBER 1992

Concentration

Northern Section

NA

21.99(118.2)

11.80(46.8)

308.66(1223.9)

20.16 (64.4)

41.10(154.8)

14.44 (62.7)

6209 (21885)

Trichloroethene trans-1,2-Dichloroethene cis-1,2-Dichloroethene Volatile Organic Compound

RI

in ppmv (mg/m3)

Southern Section

NA

5.62 (30.2)

1.31 (5.2)

47.74(189.3)

4.45 (14.2)

36.82(138.7)

17.29(75.1)

265.04(934.1)

Nonmethane Organic Compounds Milligrams per Cubic Meter Not Available

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TABLE 6 UPPER (95%) CONFIDENCE LIMITS FOR VOC CONCENTRATIONS, SCENARIO ffl

ROSE HILL REGIONAL LANDFILL SOUTH KINGSTOWN, RI

DECEMBER 1992

Compound Concentration in ppmv

Northern Section Southern Section

1.90

TCE 5.95 0.42

trans- 1,2 DCE 2.01 0.42

cis-l,2DCE NA NA

Benzene 1.15 1.12

Toluene 15.53 0.%

Ethylbenzene 1.59 1.04

NMOCs 889 103.6

Vinyl Chloride 1210.8

TCE trans-1,2 DCEcis-1,2 DCE VOC NMOCs ppmvNA

=

=

Trichloroethene trans-1,2-Dichloroethene cis-1,2-Dichloroethene Volatile Organic Compound Nonmethane Organic Compounds Parts Per Million, Volume Not Available

fl

L

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TABLE 7 CURRENT

Compound

Vinyl Chloride

TCE

trans- 1,2 DCE

cis-l,2DCE

Benzene

Toluene

Ethylbenzene

NMOCs (hexane)

TCE trans-1,2 DCE cis-l,2DCE VOC NMOCs Mg/yr NA

(1992) EMISSION ESTIMATES FOR VOCS, SCENARIO U ROSE HILL REGIONAL LANDFILL

SOUTH KINGSTOWN, RI DECEMBER 1992

Emission Rate (Mg/yr) Total Emission Rate

Northern Section Southern Section (Mg/yr)

NA

0.196

0.078

2.03

0.107

0.257

0.104

36.36

Trichloroethene trans-1,2-Dichloroethene cis-1,2-Dichloroethene Volatile Organic Compound Nonmethane Organic Compounds Megagrams per Year Not Available

NA

0.061

0.010

0.381

0.028

0.279

0.151

1.878

NA

0.257

0.088

2.411

0.135

0.536

0.255

38.237

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TABLE 8 CURRENT (1992) EMISSION ESTIMATES FOR VOCS, SCENARIO

ROSE HILL REGIONAL LANDFILL SOUTH KINGSTOWN, RI

DECEMBER 1992

Compound Emission Rate (Mg/yr) Total Emission Rate

Northern Section Southern Section (Mg/yr)

Vinyl Chloride 6.44 7.67 x lO'3 6.45

TCE 0.066 3.56 x 10'3 0.0696

trans- 1,2 DCE 0.016 2.63 x 10'3 0.0186

cis-l,2DCE NA NA NA

Benzene 0.0076 5.65 x 10'3 0.0132

Toluene 0.122 5.71 x 10'3 0.128

Ethylbenzene 0.0143 7.13x10° 0.0214

NMOCs (hexane) 6.52 0.576 7.100

TCE Trichloroethene trans-1,2 DCE = trans-1,2-Dichloroethene cis-l,2DCE cis-1,2-Dichloroethene NMOCs Nonmethane Organic Compounds Mg/yr = Megagrams per Year NA Not Available

D

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Figures

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SOLID WASTE " "AREA

FIGURE 1 SITE MAP

ROSE HILL REGIONAL LANDFILL ltKCK\ GRAPHIC SCALE SOUTH KINGSTOWN, RI c OC 20C DECEMBER 1992 SOIL GAS SAMPLE POINT

{ IN FEET ) S EPA ENVIRONMENTAL RESPONSE TEAM RESPONSE ENGWCEWNG AND ANALYTICAL CONTRACT

6*-03-3*82 1 Inch - 200ft

vnt 033 47-013-001-* 694 -41

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Appendix A

I ro a

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I APPENDIX A —

LANDFILL AIR ESTIMATION MODEL OUTPUT, SCENARIOROSE HILL REGIONAL LANDFILL

SOUTH KINGSTOWN, RI DECEMBER 1992

Li

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f

i i

r r-

o

Model Parameters

Lo : 8120.000000 ft*3 / Mg k : 0.040000 1/yr ***** Note : Default value not used ****

NMOC : 8000.000000 ppmv Methane : 50.000000 X volume

Air Toxics Parameters Chemical Name Molecular Ut Concentration

Landfill Parameters

Year Opened : 1967 Current Year : 1992 Year Closed: 1982 Capacity : 257000.000000 Mg Average Acceptance Rate : 10280.000000 Mg/year Average Acceptance Rate Required from

Current Year to Closure Year : 0.000000 Mg/year

Model Parameters

Methane Emission Rate Year

==——— ==——1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996

Refuse In Place (Mg) =======================

——— s——— 1.400E+004 2.800E+004 4.200E+004 5.600E+004 7.000E+004 8.400E+004 9.800E+004 1.120E+005 1.260E+005 1.400E+005 1 .634E+005 1 .868E+005 2.102E+005 2.336E+005 2.570E+005 2.570E+005 2.570E+005 2.570E+005 2.570E+005 2.570E+005 2.570E+005 2.570E*005 2.570E+005 2.570E+005 2.570E+005 2.570E+005 2.570E+005 2.570E+005 2.570E+005

(Mg/yr)

8.590E+001 1.684E-C002 2.477E+002 3.239E+002 3.971E+002 4.675E+002 5.350E+002 6.000E+002 6.623E+002 7.223E+002 8.375E+002 9.483E+002 1.055E+003 1.157E+003 1.255E+003 1.206E+003 1.159E+003 1.113E+003 1.070E+003 1.028E+003 9.873E+002 9.486E+002 9.114E+002 8.757E+002 8.413E+002 8.084E+002 7.767E+002 7.463E+002 7.170E+002

(Cubic Ft/yr)

4.547E+006 8.916E+006 1.311E+007 1.715E+007 2.102E+007 2.474E+007 2.832E+007 3.176E+007 3.506E+007 3.823E+007 4.433E+007 5.020E+007 5.583E+007 6.124E+007 6.644E+007 6.383E+007 6.133E+007 5.893E+007 5.661E+007 5.440E+007 5.226E+007 5.021E+007 4.824E+007 4.635E+007 4.453E+007 4.279E+007 4.111E+007 3.950E+007 3.795E+007

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I

p

NNOC Emission Rate (as Hexane) Year

1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996

Refuse In Place (Mg)

1.400E+004 2.800E+004 4.200E+004 5.600E+004 7.000E+004 8.400E+004 9.800E+004 1.120E+005 1.260E+005 1 .400E+005 1.634E+005 1.868E+005 2.102E+005 2.336E+005 2.570E+005 2.570E+005 2.570E+005 2.570E+005 2.570E+005 2.570E+005 2.570E+005 2.570E+005 2.570E+005 2.570E*005 2.570E+005 2.570E+005 2.570E+005 2.570E+005 2.570E+005

(Mg/yr)

7.385E+000 1 .448E+001 2.130E+001 2.785E+001 3.414E+001 4.019E+001 4.599E+001 5.158E+001 5.694E+001 6.209E+001 7.200E+001 8.152E+001 9.067E+001 9.945E+001 1.079E+002 1.037E+002 9.960E+001 9.570E+001 9.194E+001 8.834E+001 8.487E+001 8.155E*001 7.835E+001 7.528E+001 7.233E+001 6.951E+001 6.678E+001 6.415E+001 6.165E+001

(Cubic Ft/yr)

7.276E+004 1.427E+005 2.098E+005 2.743E+005 3.363E*005 3.959E+005 4.531E+005 5.081E+005 5.610E+005 6.117E+005 7.093E+005 8.031E+005 8.932E+005 9.798E*005 1.063E+006 1.021E+006 9.813E+005 9.428E+005 9.058E+005 8.703E+005 8.362E+005 8.034E+005 7.719E+005 7.416E+005 7.126E+005 6.848E+005 6.580E+005 6.320E+005 6.074E+005

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Appendix B

1 0. x" CD

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APPENDIX B '­LANDFILL AIR EMISSION ESTIMATION MODEL OUTPUT, SCENARIO

ROSE HILL REGIONAL LANDFILL SOUTH KINGSTOWN, RI

DECEMBER 1992

r

r

11

c L

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0.000

Model Parameters - Northern Section ===rss====s======ss=srrss=sassasss======s==ss=======sss=ssssssss=ss=s=

Lo : 8120.000000 ftA3 / Mg k : 0.040000 1/yr ***** Note : Default value not used ****

NMOC : 6209.000000 ppmv ***** Note : Default value not used **** Methane : 38.600000 X volume ***** Note : Default value not used ****

Air Toxics Para Chemical Name

Vinyl Chloride Trichloroethene trans-1,2 Dichloroethene cis-1,2 Dichloroethene Benzene Toluene Ethylbenzene

icters Molecular Ut S=====£=======

62.500 131.400 96.950 96.950 78.100 92.100 106.200

Concentration

21.990 11.800 308.660 20.160 41.100 14.440

Landfill Parameters

Year Opened : 1967 Current Year : 1992 Year Closed: 1982 Capacity : 128500.000000 Mg

Average Acceptance Rate : 5140.000000 Mg/year Average Acceptance Rate Required from

Current Year to Closure Year : 0.000000 Mg/year

Model Parameters

Methane Emission Rate Year

1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996

Refuse In Place (Mg)

7.000E+003 1.400E+004 100E+004 800E+004 500E+004 200E+004

4.900E+004 5.600E+004 6.300E+004 7.000E+004 8.170E+004 9.340E+004 1.051E+005 1.168E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005

(Mg/yr)

4.295E-»-001 8.422E+001 1.239E+002 1.620E+002 1.986E+002 2.337E+002 2.675E+002 3.000E+002 3.312E+002 3.611E+002 4.188E+002 4.741E+002 5.273E+002 5.785E+002 6.276E+002 6.030E+002 5.793E+002 5.566E+002 5.348E+002 5.138E+002 4.937E+002 4.743E+002 4.557E+002 4.378E+002 4.207E+002 4.042E+002 3.884E+002 3.732E+002 3.585E+002

(Cubic Ft/yr)

2.274E+006 4.458E+006 6.557E+006 8.573E+006 1.051E+007 1.237E+007 1.416E+007 1.588E+007 1.753E+007 1.912E+007 2.217E+007 2.510E+007 2.791E+007 3.062E+007 3.322E+007 3.192E+007 3.067E+007 2.946E*007 2.831E+007 2.720E+007 2.613E+007 2.511E+007 2.412E+007 2.318E+007 2.227E+007 2.140E+007 2.056E+007 1.975E+007 1.898E+007

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c

NHOC Emission Rate (as Hexane) Year

1968 1969 1970 1971 1972 197319741975 19761977 197819791980

T 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996

Refuse In Place (Mg) (Mg/yr)

f.OOOE+003 3.712E+000 I.400E+004 7.279E+000 2.100E+004 1.071E+001 2.800E+004 1 .400E+001 5.500E+004 1.716E+001 t4.200E+004 2.020E+001 -..900E+004 2.312E+001 5.600E+004 2.593E+001 (S.300E+004 2.862E+001 r.OOOE+004 3.121E+001 13.170E+004 3.619E+001 <7.340E+004 4.098E+001 .051E+005 4.557E+001 .168E+005 4.999E+001 .285E+005 5.424E+001 .285E+005 5.211E+001 .285E+005 5.007E+001 .285E+005 4.810E+001 .285E+005 4.622E+001 .285E+005 4.441E+001 .285E+005 4.266E+001 .285E+005 4.099E+001 .285E+005 3.938E+001 .285E+005 3.784E+001 .285E+005 3.636E+001 .285E+005 3.494E+001 .285E+005 3.357E+001 .285E+005 3.224E+001 .285E+005 3.099E+001

Selected Air Toxic: Vinyl Chloride ==SSS==S5=S5===SSSSSE===a=5S===SS==

Selection Results were All Zero

(Cubic Ft/yr) ESE=SK=========

3.657E+004 7.171E+004 1.055E+005 1 .379E+005 1.691E+005 1 .990E+005 2.278E*005 2.554E+005 2.820E+005 3.075E+005 3.566E+005 4.037E-»-005 A.490E+005 4.925E+005 5.343E+005 5.134E+005 4.933E+005 4.739E+005 4.553E+005 4.375E+005 4.203E+005 4.038E+005 3.880E1-005 3.728E+005 3.5B2E+005 3.442E+005 3.307E+005 3.177E-t-005 3.053E+005

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Selected Air Toxic: Trichloroethene

(:

Year Refuse In Place (Hg) (Mg/yr) (Cubic Ft/yr) =ss==:

1968 7.000E+003 2.005E-002 1.295E+002 1969 1 .400E+004 3.930E-002 2.540E+002 1970 2.100E+004 5.781E-002 3.735E+002 1971 2.800E+004 7.559E-002 4.884E+002 1972 3.500E+004 9.267E-002 5.988E+002 1973 4.200E+004 1.091E-001 7.048E+002 1974 4.900E+004 1.248E-001 8.067E-t-002 1975 5.600E+004 1.400E-001 9.046E*002 1976 6.300E+004 1.546E-001 9.987E+002 1977 7.000E+004 1.685E-001 .089E+003 1978 8.170E+004 1.954E-001 .263E+003 1979 9.340E+004 2.213E-001 .430E+003 1980 1.051E+005 2.461E-001 .590E+003 1981 1.168E+005 2.700E-001 .744E+003 1982 .285E+005 2.929E-001 .892E+003 1983 .285E+005 2.814E-001 -818E+003 1984 .285E+005 2.704E-001 .747E+003 1985 .285E+005 2.598E-001 .678E+003 1986 .285E+005 2.496E-001 .613E+003 1987 .285E+005 2.398E-001 .549E+003 1988 .285E+005 2.304E-001 .489E+003 1989 .285E+005 2.214E-001 1 .430E+003 1990 .285E+005 2.127E-001 1.374E+003 1991 .285E+005 2.043E-001 1.320E+003 1992 .285E+005 1.963E-001 1.269E+003 1993 .285E+OC5 1.887E-001 1.219E+003 1994 .285E+005 1.813E-001 1.171E+003 1995 .285E+005 1.741E-001 1.125E+003 1996. .285E+005 1.673E-001 1.081E+003

Selected Air Toxic: trans-1,2 Dichloroethene

Year Refuse In Place (Hg) (Mg/yr) (Cubic Ft/yr) ===r=:

1968 7.000E+003 7.936E-003 6.950E+001 1969 1 .400E+004 1.556E-002 1 .363E+002 1970 2.100E+004 2.289E-002 2.004E+002 1971 2.800E+004 2.993E-002 2.621E+002 1972 3.500E+004 3.669E-002 3.213E+002 1973 4.200E+004 4.319E-002 3.782E+002 1974 4.900E+004 4.943E-002 4.329E+002 1975 5.600E+004 5.543E-002 4.854E+002 1976 6.300E+004 6.119E-002 5.359E+002 1977 7.000E+004 6.673E-002 5.844E+002 1978 8.170E+004 7.738E-002 6.776E+002 1979 9.340E+004 8.761E-002 7.672E+002 1980 .051E*005 9.744E-002 8.533E+002 1981 .168E+005 1.069E-001 9.360E+002 1982 .285E+005 1.160E-001 1.016E+003 1983 .285E+005 1.114E-001 9.757E+002 1984 .285E+005 1.070E-001 9.374E-t-002 1985 .285E+005 1.028E-001 9.007E+002 1986 .285E+005 9.881E-002 8.654E+002 1987 .285E+005 9.494E-002 8.314E+002 1988 .285E+005 9.121E-002 7.988E+002 1989 .285E+005 8.764E-002 7.675E+002 1990 .285E+005 8.420E-002 7.374E+002 1991 .285E+005 8.090E-002 7.085E+002 1992 1.285E+005 7.773E-002 6.807E+002 1993 1.285E+005 7.471E-002 6.542E+002 1994 1.285E+005 7.178E-002 6.285E+002 1995 1.285E+005 6.895E-002 6.038E+002 1996 1.285E+005 6.626E-002 5.802E+002

. \HARVEY\MT-0072M .RPT

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Selected Air Toxic: cis-1,2 Dichloroethene

Year Refuse In Place (Mg) (Mg/yr) (Cubic Ft/yr)

1968 7.000E+003 2. 076E-001 1.818E+003 1969 .400E+004 4. 071E-001 3.565E+003 1970 2.100E+004 5. 987E-001 5.243E+003 1971 2.800E+004 7. 828E-001 6.856E+003 1972 3.500E+004 9. 597E-001 8.405E+003 1973 4.200E+004 130E+000 9.893E+003 1974 4.900E+004 293E+000 1.132E+004 1975 5.600E+004 450E+000 1.270E+004 1976 6.300E+004 601E+000 1 .402E+004 1977 7.000E+004 745E+000 1.529E+004 1978 8.170E+004 2. 024E+000 1.773E+004 1979 9.340E+004 2. 292E+000 2.007E+004 1980 .051E+005 2. 549E+000 2.232E+004 1981 .168E+005 2. 796E+000 2.448E+004 1982 .285E+005 3. 033E+000 2.656E+004 1983 .285E+005 2. 914E+000 2.552E+004 1984 .285E+005 2. 800E+000 2.452E+004 1985 .285E+005 2. 690E+000 2.356E+004 1986 .285E+005 2. 585E*000 2.264E+004 1987 .285E+005 2. 483E+000 2.175E*004 1988 .285E+005 2. 386E+000 2.090E+004 1989 .285E+005 2. 292E+000 2.008E+004 1990 -285E+005 2. 203E+000 1 .929E+004 1991 .285E+005 2. 116E+000 1.853E+004 1992 .285E+005 2. 033E+000 1.781E+004 1993 .285E+005 1. 954E+000 1.711E+004 1994 .285E+005 1. 877E+000 1 .64AE+004 1995 .285E+005 1. 803E+000 1.579E-t-004 1996 .285E+005 1. 733E+000 1.518E+004

Selected Air Toxic: Benzene

Year Refuse In Place (Mg) (Mg/yr) (Cubic Ft/yr)

l i 1968 1969 1970 1971 1972

7.000E+003 1.400E+004 2.100E+004 2.800E+004 3.500E+004

1.092E-002 2.142E-0023.150E-0024.119E-0025.050E-002

! ] i !

.187E+002 !.328E+002 5.425E-1-002 ..478E+002 5.490E+002

1973 4.200E+004 5.944E-002 <>.462E+002 1974 4.900E+004 6.803E-002 r.396E+002 1975 5.600E+004 7.629E-002 JJ.293E+002 1976 6.300E+004 8.422E-002 <>.156E+002 1977 7.000E+004 9.184E-002 ?).984E+002 1978 8.170E+004 .065E-001 .158E+003 1979 9.340E+004 .206E-001 .311E*003 1980 1.051E+005 .341E-001 .458E+003 1981 1.168E+005 .471E-001 .599E*003 1982 1.285E+005 .596E-001 .735E+003 1983 1.285E+005 1.533E-001 .667E+003 1984 1.285E+005 1.473E-001 .602E+003 1985 1.285E+005 1.415E-001 .539E+003 1986 1.285E+005 1.360E-001 .478E+003 1987 1.285E+005 1.307E-001 .420E+003 1988 1.285E+005 1.255E-001 .365E+003 1989 1.285E+005 1.206E-001 .311E+003 1990 1.285E+005 1.159E-001 .260E+003 1991 1.285E+005 1.113E-001 .210E+003 1992 1.285E+005 1.070E-001 I.163E+003 1993 1.285E+005 1.028E-001 I.118E+003 1994 1.285E+005 9.878E-002 1.074E+003 1995 1.285E+005 9.489E-002 I.032E+003 1996 1.285E+005 9.119E-002 'P.913E+002

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Selected Air Toxic: Toluene

Year Refuse In Place (Mg) (Hg/yr) (Cubic Ft/yr)

I,

1968 7.000E+003 2.626E-002 2.421E+002 1969 1 .400E+004 5.149E-002 4.747E+002 1970 2.100E+004 7.573E-002 6.982E+002 1971 2.800E+004 9.902E-002 9.129E+002 1972 3.500E+004 1.214E-001 1.119E+003 1973 4.200E+004 1.429E-001 1.317E+003 1974 4.900E+004 1.636E-001 1.508E+003 1975 5.600E+004 1.834E-001 1.691E+003 1976 6.300E+004 2.025E-001 1 .867E+003 1977 7.000E+004 2.208E-001 2.035E+003 1978 8.170E+004 2.560E-001 2.360E+003 1979 9.340E+004 2.899E-001 2.672E+003 1980 .051E+005 3.224E-001 2.972E+003 1981 .168E+005 3.537E-001 3.260E+003 1982 .285E+005 3.837E-001 3.537E+003 1983 .285E+005 3.686E-001 3.398E+003 1984 .285E+005 3.542E-001 3.265E+003 1985 1.285E+005 3.403E-001 3.137E+003 1986 1.285E+005 3.269E-001 3.014E+003 1987 1.285E+005 3.141E-001 2.896E+003 1988 1.285E+005 3.018E-001 2.782E+003 1989 .285E+005 2.900E-001 2.673E+003 1990 .285E+005 2.786E-001 2.568E+003

c ­1991 .285E+005 2.677E-001 2.468E+003 1992 .285E+005 2.572E-001 2.371E+003 1993 .285E+005 2.472E-001 2.279E+003 1994 1.285E+005 2.375E-001 2.189E+003 1995 1.285E+005 2.281E-001 2.103E+003 1996 1.285E+005 2.192E-001 2.021E+003

Selected Air Toxic: Ethylbenzene

Year Refuse In Place (Mg) (Mg/yr) (Cubic Ft/yr)

1968 7.000E+003 1.064E-002 8.505E+001 1969 1.400E+004 2.086E-002 1.668E+002 1970 2.100E+004 3.068E-002 2.453E+002 1971 2.800E+004 4.012E-002 3.207E+002 1972 3.500E+004 4.918E-002 3.932E+002 1973 4.200E+004 5.789E-002 4.628E+002 1974 4.900E+004 6.626E-002 5.297E-t-002 1975 5.600E+004 7.430E-002 5.940E-t-002 1976 6.300E+004 8.203E-002 6.558E+002 1977 7.000E+004 8.945E-002 7.151E+002

(i 1978 1979 1980

8.170E+004 9.340E+004 1.051E+005

1.037E-0011.174E-0011.306E-001

8.292E+002 9.389E+002 1.044E+003

1981 1.168E+005 1.433E-001 1.145E+003 1982 1.285E+005 1.554E-001 1.243E+003 1983 1.285E+005 1.493E-001 1.194E+003 1984 1.285E+005 1.435E-001 1.147E+003 1985 1.285E+005 1.379E-001 1.102E+003 1986 1.285E+005 1.325E-001 1.059E+003 1987 1.285E+005 1.273E-001 1.017E+003 1988 1.285E+005 1.223E-001 9.775E+002 1989 1.285E+005 1.175E-001 9.392E+002 1990 1.285E+005 1.129E-001 9.024E+002 1991 1.285E+005 1.084E-001 8.670E+002 1992 1.285E+005 1.042E-001 8.330E+002 1993 1.285E+005 1.001E-001 8.006E+002 1994 1.285E+005 9.621E-002 7.691E+002 1995 1.285E+005 9.242E-002 7.388E+002 1996 1.285E+005 8.882E-002 7.100E+002

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Model Parameters - Southern Section

Lo : 8120.000000 ftA3 / Mg k : 0.040000 1/yr ***** Note : Default value not used ****

NMOC : 265.040000 ppmv ***** Note : Default value not used ****­Methane : 31.900000 X volume ***** Note : Default value not used ****

Air Toxics Parameters Chemical Name

Vinyl Chloride Trichloroethene trans-1,2 Dichloroethene c is- 1,2 Dichloroethene Benzene Toluene Ethylbenzene

Landfill=

Molecular Wt Concentration

62.500 0.000 131.400 5.620 96.950 1.310 96.950 47.740 78.100 4.450 92.100 36.820 106.200 17.290

Parameters

Year Opened : 1967 Current Year : 1992 Year Closed: 1982 Capacity : 128500.000000 Mg

Average Acceptance Rate : 5140.000000 Mg/year Average Acceptance Rate Required from

Current Year to Closure Year : 0.000000 Mg/year

I.

(]

Model Parameters

Year Refuse In Place (Mg) ===============

1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996

7.000E+003 400E+004 100E+004 800E+004 500E+004 200E+004 900E+004

5.600E+004 6.300E+004 7.000E+004 8.170E+004 9.340E+004 1.051E+005 1.168E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005

Methane Emission Rate (Mg/yr)

4.295E+001 8.422E+001 1.239E+002 1.620E+002 1.986E-M302 2.337E-t-002 2.675E+002 3.000E+002 3.312E+002 3.611E+002 4.188E+002 4.741E+002 5.273E+002 5.785E+002 6.276E+002 6.030E+002 5.793E+002 5.566E+002 5.348E+002 5.138E+002 4.937E+002 4.743E+002 4.557E+002 4.378E+002 4.207E+002 4.042E1-002 3.884E+002 3.732E+002 3.585E+002

(Cubic Ft/yr)

2.274E+006 4.458E+006 6.557E+006 8.573E+006 1.051E+007 1.237E+007 1.416E+007 1.588E+007 1.753E+007 1.912E+007 2.217E+007 2.510E+007 2.791E+007 3.062E+007 3.322E+007 3.192E+007 3.067E+007 2.946E+007 2.831E+007 2.720E+007 2.613E+007 2.511E+007 2.412E+007 2.318E+007 2.227E+007 2.140E+007 2.056E+007 1.975E*007 1.898E+007

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NHOC Emission Rate (as Nexane) Year Refuse In Place (Mg) (Mg/yr) (Cubic Ft/yr)

BCKM«ZCB«XXr BX

n

1968 r.OOOE+003 1.917E-001 1.889E+003 1969 I.400E+004 3.760E-001 3.704E+003 1970 ,MOOE+004 5.529E-001 5.448E+003 1971 2.800E+004 7.230E-001 7.123E+003 1972 :5.500E+004 8.864E-001 8.733E+003 1973 t..200E+004 .043E+000 1.028E+004 1974 <».900E+004 .194E+000 1.177E+004 1975 5.600E-K104 .339E+000 1.319E+004 1976 (S.300E+004 .478E+000 1 .456E+004 1977 r.OOOE+004 .612E+000 1.588E+004 1978 !J.170E+004 .869E+000 1.842E+004 1979 <7.340E+004 2.117E+000 2.085E+004 1980 1.051E+005 2.354E+000 2.319E*004 1981 1.168E+005 2.582E+000 2.544E+004 1982 .285E+005 2.801E+000 2.760E+004 1983 .285E+005 2.692E+000 2.652E+004 1984 .285E+005 2.586E+000 2.548E+004 1985 .285E+005 2.485E+000 2.448E+004 1986 .285E+005 2.387E+000 2.352E+004 1987 .285E+005 2.294E+000 2.260E+004 1988 .285E+005 2.204E+000 2.171E+004 1989 .285E+005 2.117E+000 2.086E+004 1990 .285E+005 2.034E+000 2.004E+004 1991 .285E+005 1.954E+000 1.926E+004 1992 .285E+005 1.878E+000 1.850E+004 1993 .285E+005 1 .805E+000 1.778E+004 1994 .285E+005 1.734E+000 1.708E+004 1995 .285E+005 1.665E+000 1.641E+004 1996 .285E+005 1.601E+000 1.577E+004

Selected Air Toxic: Vinyl Chloride SSSSS=SSSE===============SSSSS=====

Selection Results were All Zero

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Selected Air Toxic: Trichloroethene

Year

1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996

Year

1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996

Refuse In Place (Mg)

7.000E+003 1.400E+004 2.100E+004 2.800E+004 3.500E+004 4.200E+004 4.900E+004 5.600E+004 6.300E+004 7.000E+004 8.170E+004 9.340E+004 .051E+005 .1688+005 .285E+005 .285E+005 .285E+005 .285E+005 .285E+005 .285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005

Selected Air Toxic:

Refuse In Place (Mg)

7.000E+003 1.400E+004 2.100E+004 2.800E+004 3.500E+004 4.200E+004 4.900E+004 5.600E+004 6.300E+004 7.000E+004 8.170E+004 9.340E+004 1.051E+005 1.168E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005

trans-1,2 Dichloroethene

(Mg/yr)

6.199E-003 1.215E-002 1.788E-002 2.338E-002 2.866E-002 3.373E-002 3.861E-002 4.329E-002 4.780E-002 5.212E-002 6.044E-002 6.843E-002 7.611E-002 8.348E-002 9.057E-002 8.702E-002 8.361E-002 8.033E-002 7.718E-002 7.415E-002 7.125E-002 6.845E-002 6.577E-002 6.319E-002 6.071E-002 5.835E-002 5.606E-002 5.385E-002 5.175E-002

(Mg/yr)

1.066E-003 2.090E-003 3.075E-003 4.020E-003 4.929E-003 5.801E-003 6.640E-003 7.446E-003 8.220E-003 8.964E-003 1.039E-002 1.177E-002 1.309E-002 1.436E-002 1.558E-002 1.497E-002 .438E-002 .382E-002 .327E-002 .275E-002 .225E-002 .177E-002 .131E-002 .087E-002 .044E-002 .003E-002 9.641E-003 9.262E-003 8.900E-003

(Cubic Ft/yr) ISSBXSXSXSXSSXSSZ

4.006E+601 7.854E*001 1.155E+002 1.510E+002 1.852E+002 2.180E+002 2.495E+002 2.798E+002 3.088E+002 3.368E+002 3.905E+002 4.422E+002 4.918E+002 5.394E+002 5.852E+002 5.623E+002 5.402E+002 5.191E+002 4.987E+002 4.792Et-002 4.604E+002 4.423E+002 4.250E+002 4.083E+002 3.923E+002 3.770E+002 3.622E+002 3.479E+002 3.344E+002

(Cubic Ft/yr)

9.337E+000 1.831E+001 2.693E+001 3.521E+001 4.316E+001 5.081E+001 5.815E+001 6.521E+001 7.199E*001 7.850E+001 9.103E+001 1.031E+002 1.146E+002 1.257E+002 1 .364E+002 1.311E+002 1.259E+002 1.210E+002 1.162E+002 1.117E+002 1.073E+002 1.031E+002 9.906E+001 9.517E+001 9.144E+001 8.788E+001 8.443E+001 8.111E+001 7.794E+001

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Selected Air Toxic: cis-1,2 DichLoroethene

Year

1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996

Year

1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996

Refuse In Place (Hg)

7.000E+003 1 .400E+004 2.100E+004 2.800E+004 3.500E+004 4.200E+004 4.900E+004 5.600E+004 6.300E+004 7.000E+004 8.170E+004 9.340E+004 1.051E+005 1.168E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 .285E+005 .285E+005 .285E+005 .285E+005 .285E+005 .285E+005 1.285E+005 1.285E+005

Selected Air

Refuse In Place (Hg)

7.000E+003 1 .400E+004 2.100E+004 2.800E+004 3.500E+004 4.200E+004 4.900E+004 5.600E+004 6.300E+004 7.000E+004 8.170E+004 9.340E+004 1.051E+005 1.168E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285Et-005

(Mg/yr)

3.885E-002 7.618E-002 1.120E-001 1.465E-001 1.796E-001 2.114E-001 2.420E-001 2.713E-001 2.996E-001 3.267E-001 3.788E-001 4.289E-001 4.770E-001 5.232E-001 5.677E-001 5.4S4E-001 5.240E-001 5.035E-001 4.837E-001 4.648E-001 4.465E-001 4.290E-001 4.122E-001 3.960E-001 3.805E-001 3.657E-001 3.514E-001 3.375E-001 3.244E-001

Toxic: Benzene

(Mg/yr)

2.917E-003 5.720E-003 8.414E-003 1.100E-002 1 .349E-002 1.588E-002 1.817E-002 2.038E-002 2.249E-002 2.453E-002 2.844E-002 3.220E-002 3.582E-002 3.929E-002 4.263E-002 4.095E-002 3.935E-002 3.781E-002 3.632E-002 3.490E-002 3.353E-002 3.222E-002 3.095E-002 2.974E-002 2.857E-002 2.746E-002 2.638E-002 2.534E-002 2.435E-002

(Cubic Ft/yr) BMSXSBB SB BBKK B BS

3.403E+002 6.672E+002 9.813E+002 1 .283E+003 1.573E+003 1 .852E+003 2.119E+003 2.376E*003 2.623E+003 2.861E+003 3.317E+003 3.756E+003 4.177E+003 4.582E+003 4.971E+003 4.776E+003 4.589E+003 4.409E+003 4.236E+003 4.070E+003 3.911E*003 3.757E+003 3.610E+003 3.468E+003 3.332E+003 3.203E+003 3.077E+003 2.956E+003 2.840E+003

(Cubic Ft/yr)

3.172E+001 6.219E+001 9.147E+001 1.196E+002 1.466E+002 1.726E+002 1 .975E+002 2.215E*002 2.445E+002 2.667E+002 3.092E+002 3.501E+002 3.894E+002 4.271E+002 4.634E+002 4.452E+002 4.278E+002 4.110E+002 3.949E+002 3.794E+002 3.645E+002 3.502E+002 3.365E+002 3.233E+002 3.106E+002 2.985E+002 2.868E+002 2.755E+002 2.648E+002

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Selected Air Toxic:-Toluene

Year Refuse In Place (Mg> (H9/yr) (Cubic Ft/yr)

r

1968 7.000E+003 2.847E-002 2.624E+002 1969 1.400E+004 5.582E-002 5.146E*002 1970 2.100E+004 8.209E-002 7.568E+002 1971 2.800E+004 1.073E-001 9.896E+002 1972 3.500E+004 1.316E-001 1.213E+003 1973 4.200E+004 1.549E-001 1.428E+003 1974 4.900E+004 1.773E-001 1.634E+003 1975 5.600E+004 1.988E-001 1.B33E+003 1976 6.300E+004 2.195E-001 2.023E+003 1977 7.000E+004 2.393E-001 2.206E+003 1978 8.170E+004 2.775E-001 2.559E+003 1979 9.340E+004 3.142E-001 2.897E+003 1980 1 .051E+005 3.495E-001 3.222E+003 1981 1.168E+005 3.834E-001 3.534E+003 1982 1.285E+005 4.159E-001 3.834E*003 1983 1.285E+005 3.996E-001 3.684E+003 1984 1.285E+005 3.839E-001 3.539E+003 1985 1.285E+005 3.689E-001 3.401E+003 1986 1.285E+005 3.544E-001 3.267E+003 1987 1.285E+005 3.405E-001 3.139E+003 1988 1.285E+005 3.272E-001 3.016E+003 1989 1.285E+005 3.143E-001 2.898E+003 1990 1.285E+005 3.020E-001 2.784E+003 1991 1.285E+005 2.902E-001 2.675E+003 1992 1.285E+005 2.788E-001 2.570E+003 1993 1.285E+005 2.679E-001 2.470E+003 1994 1.285E+005 2.574E-001 2.373E+003 1995 1.285E+005 2.473E-001 2.280E+003 1996 1.285E+005 2.376E-001 2.191E+003

Selected Air Toxic: Ethyl benzene

Year Refuse In Place (Mg) (Ng/yr) (Cubic Ft/yr)

1968 7.000E+003 1.541E-002 1.232E+002 1969 1.400E+004 3.022E-002 2.416E+002 1970 2.100E+004 4.445E-002 3.554E+002 1971 2.800E+004 5.812E-002 4.647E+002 1972 3.500E+004 7.126E-002 5.697E+002 1973 4.200E+004 8.388E-002 6.706E+002 1974 4.900E+004 9.600E-002 7.675E+002 1975 5.600E+004 1.077E-001 8.607E*002 1976 6.300E+004 1.188E-001 9.501E+002 1977 7.000E+004 1.296E-001 .036E+003 1978 8.170E+004 1.503E-001 .201E+003 1979 9.340E+004 1.701E-001 .360E+003 1980 1.051E+005 1 .892E-001 .513E+003 1981 1.168E+005 2.076E-001 .660E+003 1982 1 .285E+005 2.252E-001 .800E+003 1983 1.285E+005 2.164E-001 .730E+003 1984 1.285E+005 2.079E-001 .662E+003 1985 1.285E+005 .997E-001 .597E+003 1986 1.285E+005 .919E-001 .534E+003 1987 1.285E+005 .844E-001 .474E+003 1988 .285E+005 .772E-001 .416E+003 1989 .285E+005 .702E-001 1 .361E+003 1990 .285E*005 .635E-001 1.307E*003 1991 .285E+005 .571E-001 1 .256E+003 1992 .285E+005 .510E-001 1.207E*003 1993 1.285E+005 .451E-001 1.160E+003 1994 1.285E+005 .394E-001 1.114E+003 1995 1.285E+005 1.339E-001 1.070E+003 1996 1.285E+005 1.287E-001 1.029E+003

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Appendix C

n Q. x" n

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APPENDIX C LANDFILL AIR EMISSION ESTIMATION MODEL OUTPUT, SCENARIO

ROSE HILL REGIONAL LANDFILL SOUTH KINGSTOWN, RI

DECEMBER 1992

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Model Parameters - Northern Section

Lo : 8120.000000 ftA3 / Mg k : 0.040000 1/yr ***** Note : Default value not used ****

NMOC : 889.000000 ppmv ***** Note : Default value not used **** Methane : 30.800000 X volume ***** Note : Default value not used ****

Air Toxics Parameters Chemical Name ===ss====s=======ss==sss= Vinyl Chloride Trichloroethene trans-1,2 Dichloroethene c is- 1,2 Dichloroethene Benzene Toluene Ethylbenzene

Molecular Ut Concentration

62.500 1210.850 131.400 950 96.950 010 96.950 0.000 78.100 1.150 92.100 15.530 106.200 1.590

Landfill Parameters

Year Opened : 1967 Current Year : 1992 Year Closed: 1982 Capacity : 128500.000000 Mg Average Acceptance Rate : 5140.000000 Mg/year Average Acceptance Rate Required from

Current Year to Closure Year : 0.000000 Mg/year

Model Parameter's

Year Refuse In Place (Mg)

1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996

7.000E+003 1.400E+004 2.100E+004 2.800E+004 3.500E+004 4.200E+004 4.900E+004 5.600E+004 6.300E+004 7.000E+004 8.170E+004 9.340E+004 1.051E+005 .168E+005 .285E+005 .285E+005 .285E+005 .285E+005 .285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005

Methane Emission Rate (Mg/yr) (Cubic Ft/yr)

4.295E+001 8.422E+001 1.239E+002 1.620E+002 1 .986E+002 2.337E+002 2.675E+002 3.000E+002 3.312E+002 3.611E+002 4.188E+002 4.741E+002 5.273E+002 5.785E+002 6.276E+002 6.030E+002 5.793E+002 5.566E+002 5.348E+002 5.138E+002 4.937E+002 4.743E+002 4.557E+002 4.378E+002 4.207E+002 4.042E+002 3.88AE+002 3.732E+002 3.585E+002

2.274E+006 4.458C+006 6.557E+006 8.573E+006 1.051E+007 1.237E+007 1.416E+007 1.588E+007 1.753E+007 1.912E*007 2.217E+007 2.510E+007 2.791E+007 3.062E+007 3.322E+007 3.192E+007 3.067E+007 2.946E+007 2.831E+007 2.720E+007 2.613E+007 2.511E+007 2.412E+007 2.318E+007 2.227E+007 2.140E+007 2.056E+007 1 .975E+007 1 .898E+007

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Year

19681969 19701971197219731974197519761977197819791980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996

Year

19681969 19701971197219731974197519761977197819791980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996

Refuse In Place (Hg)

7.000E+003 1.400E+004

2.100E+004 2.800E+004 3.500E+004 4.200E+004 4.900E+004 5.600E+004 6.300E+004 7.000E+004 8.170E+004 9.340E+004

1.051E+005 1.168E+005 I.285E+005 .285E+005 .285E+005 .285E+005 .285E+005 .285E+005 .285E+005 .285E+005 .285E+005 1.285E+005 1.285E+005 I.285E+005 I.285E+005 I.285E+005 I.285E+005

Selected Air Toxic:

Refuse In Place (Mg)

7.000E+003 I.400E+004

2.100E+004 2.800E+004 3.500E+004 4.200E+004 4.900E+004 5.600E+004 6.300E+004 7.000E+004 8.170E+004 9.340E+004

.051E+005

.168E+005

.285E+005

.285E+005

.285E+005

.285E+005

.285E+005

.285E+005

.285E+005

.285E+005

.285E+005 -285E+005 .285E+005 .285E+005 .285E+005 .285E+005

1 -285E+005

NHOC Emission Rate (as Hexane) (Mg/yr) (Cubic Ft/yr)

6.661E-001 6.562E+003 1.306E+000 1.287E*004 1.921E+000 1.893E+004 2.512E+000 2.475E*004 3.079E*000 3.034E+004 3.625E+000 3.571E+004 4.149E+000 4.087E+004 4.652E+000 4.583E+004 5.136E+000 5.060E+004 5. 600E+000 5.518E+004 6. 494E+000 6.398E+004 7. 353E+000 7.244E*004 8. 178E+000 8.057E+004 8. 971E+000 8.838E+004 9. 732E+000 9.588E*004 9. 351E+000 9.212E+004 8. 984E+000 8.851E+004 8. 632E+000 8.504E+004 8. 293E+000 8.171E+004 7. 968E+000 7.850E+004 7. 656E+000 7.542E+004 7. 355E+000 7.247E*004 7. 067E+000 6.962E+004 6. 790E+000 6.689E+004 6. 524E+000 6.427E*004 6. 269E+000 6.177E+004 6. 023E+000 5.934E+004 5. 786E+000 5.701E+004 5. 560E+000 5.478E+004

Vinyl Chloride

(Mg/yr) (Cubic Ft/yr)

6. 580E-001 8.938E+003 1. 290E+000 1.753E+004 1. 897E+000 2.578E+004 2. 481E+000 3.370E*004 3. 042E+000 4.132E+004 3. 580E+000 4.864E+004 4. 098E+000 5.567E+004 4. 595E+000 6.243E+004 5. 073E+000 6.892E*004 5. 532E+000 7.515E*004 6. 415E+000 8.715E+004 7. 263E+000 9.867E4-004 8. 078E+000 .097E+005 8. 861E+000 .204E+005 9. 613E+000 .306E+005 9. 236E+000 .255E+005 8. 874E+000 .206E+005 8. 526E+000 .158E+005 8. 192E+000 .113E+005 7. 871E+000 .069E+005 7. 562E+000 .027E+005 7. 266E+000 9.870E*004 6. 981E+000 9.483E*004 6. 707E+000 9.111E*004 6. 444E+000 8.754E+004 6. 194E+000 8.413E+004 5. 950E+000 8.083E+004 5. 716E+000 7.764E*004 5. 493E+000 7.462E+004

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Selected Air Toxic: Trichloroethene

Year =s===

1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996

Year

1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996

Refuse In Place (Mg) sr===========ss====rsss=====s=ss

7.000E+003 1.400E+004 2.100E+004 2.800E+004 3.500E+004 4.200E+004 4.900E+004 5.600E+004 6.300E+004 7.000E+004 8.170E+004 9.340E+004 1.051E+005 1.168E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1 .285E+005 1.285E+005 .285E+005 .285E+005 .285E+005 .285E+005 .285E+005 .285E+005

Selected Air Toxic: trans-1,2

Refuse In Place (Mg)

7.000E+003 1 .400E+004 2.100E+004 2.800E+004 3.500E+004 4.200E+004 4.900E+004 5.600E+004 6.300E+004 7.000E+004 8.170E+004 9.340E+004 1.051E+005 .168E+005 .285E+005 .285E+005 .285E+005 .285E+005 .285E+005 .285E+005 .285E+005 .285E+005 .285E+005 .285E+005 .285E+005 .285E+005 .285E+005 1.285E+005 1.285E+005

rcsrsrs

(«g/yr) (Cubic Ft/yr) ==sssssasssssss S3=======SSS3SSSSES

6.797E-003 1.333E-002 1.960E-002 2.563E-002 3.142E-002 3.699E-002 4.234E-002 4.747E-002 5.241E-002 5.715E-002 6.627E-002 7.503E-002 8.345E-002 9.154E-002 9.931E-002 9.542E-002 9.168E-002 8.808E-002 6.463E-002 8.131E-002 7.812E-002 7.506E-002 7.212E-002 6.929E-002 6.657E-002 6.399E-002 6.H7E-002 5.905E-002 5.675E-002

Dichloroethene

(Mg/yr)

1.694E-003 3.322E-003 4.886E-003 6.389E-003 7.832E-003 9.219E-003 1.055E-002 1.183E-002 1.306E-002 1.424E-002 1.652E-002 1.870E-002 2.080E-002 2.282E-002 2.475E-002 2.378E-002 2.285E-002 2.195E-002 2.109E-002 2.027E-002 1.947E-002 1.871E-002 1.798E-002 1.727E-002 1.659E-002 1.594E-002 1.532E-002 1.472E-002 1.414E-002

4.392E+001 8.612E+001 1.267E+002 1 .656E+002 2.030E+002 2.390E+002 2.736E*002 3.068E+002 3.386E+002 3.693E+002 4.282E+002 4.848E+002 5.392E*002 5.915E+002 6.417E+002 6.166E+002 5.924E+002 5.692E+002 5.468E+002 5.254E+002 5.048E+002 4.850E+002 4.660E+002 4.477E+002 4.302E+002 4.134E+002 3.972E+002 3.815E+002 3.667E+002

(Cubic Ft/yr)

1.484E+001 2.909E+001 4.279E+001 5.595E+001 6.859E+001 8.074E+001 9.241E+001 1.036E+002 1.144E+002 1.248E+002 1 .447E+002 1.638E+002 1.822E+002 1.998E+002 2.168E+002 2.083E+002 2.001E+002 1.923E+002 1.847E+002 1.775E+002 .705E+002 .638E+002 .574E+002 .512E+002 .453E+002 .397E+002 .342E*002 .289E+002 .239E+002

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Selected Air Toxic: cis-1,2 Dichloroethene

Selection Results were All Zero

Selected Air Toxic: Benzene

r

Year

1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996

Refuse In Place (Mg)

7.000E+003 1 .400E+004 2.100E+004 2.800E+004 3.500E+004 4.200E+004 4.900E+004 5.600E+004 6.300E+004 7.000E+004 8.170E+004 9.340E+004 .051E+005 .168E+005 .285E+005 .285E+005 .285E+005 .285E+005 .285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005

(Mg/yr)

7.809E-004 1.531E-003 2.252E-003 2.945E-003 3.610E-003 4.249E-003 4.863E-003 5.454E-003 6.021E-003 6.565E-003 7.613E-003 8.620E-003 9.587E-003 1.052E-002 1.141E-002 1.096E-002 1.053E-002 1.012E-002 9.722E-003 9.341E-003 8.975E-003 8.623E-003 6.2B5E-003 7.960E-003 7.648E-003 7.350E-003 7.062E-003 6.783E-003 6.519E-003

SSSSSS5

(Cubic Ft/yr>

8.489E+000 1.665E+001 2.448E+001 3.201E*001 3.924E*001 4.620E+001 5.287E-M)01 5.929E*001 6.545E+001 7.138E+001 8.277E+001 9.371E+001 1.042E+002 1.143E+002 1 .240E+002 1.192E*002 1.145E+002 1.100E+002 1.057E+002 1.015E*002 9.757E*001 9.374E+001 9.007E+001 8.653E+001 8.314E+001 7.990E*001 7.677E+001 7.374E*001 7.087E+001

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Selected Air Toxic: Toluene

Year Refuse In Place (Hg) (Mg/yr) (Cubic Ft/yr)

1966 7.000E+003 I.244E-002 1 .146E+002 1969 1.400E+004 2.438E-002 2.248E+002 1970 2.100E+004 3.586E-002 3.306E+002 1971 2.800E+004 4.689E-002 4.323E+002 1972 3.500E+004 !5.749E-002 5.300E+002 1973 4.200E+004 6.767E-002 6.238E+002 1974 4.900E+004 7. 745E- 002 7.140E+002 1975 5.600E+004 8.685E-002 8.OOTE-t-002 1976 6.300E+004 9.588E-002 8.839E+002 1977 7.000E+004 .046E-001 9.639E+002 1978 8.170E+004 .212E-001 1 .118E+003 1979 9.340E+004 .373E-001 .265E+003 1980 1.051E+005 .527E-001 .407E+003 1981 1.168E+005 .675E-001 .544E+003 1982 1.285E+005 .817E-001 .675E+003 1983 1.285E+005 .746E-001 .609E+003 1984 1.285E+005 .677E-001 .546E+003 1985 1 .285E+005 .611E-001 .486E+003 1986 1 .28SE+005 .548E-001 .427E+003 1987 1.285E+005 .488E-001 .371E+003 1988 1.285E+005 .429E-001 .318E*003 1989 1.285E+005 .373E-001 1 .266E+003 1990 1.285E+005 .319E-001 1.216E+003 1991 1.285E+005 .268E-001 1 .169E+003 1992 1.285E+005 .218E-001 1 .123E+003 1993 1 .285E+005 .170E-001 1 .079E+003 1994 1.285E+005 .124E-001 1 .037E+003 1995 1.285E+005 .080E-001 9.958E+002 1996 1.285E+005 .038E-001 9.570E*002

Selected Air Toxic: Ethyl benzene

Year Refuse In Place (Mg) (Mg/yr) (Cubic Ft/yr)

1968 7.000E+003 I.468E-003 1 .174E+001 1969 1.400E+004 2.879E-003 2.301E+001 1970 2.100E+004 4.234E-003 3.385E+001 1971 2.800E+004 !5.536E-003 4.426E+001 1972 3.500E+004 6.787E-003 5.426E-t-001 1973 4.200E+004 7.989E-003 6.387E+001 1974 4.900E+004 9.144E-003 7.310E+001 1975 5.600E+004 .025E-002 8.197E+001 1976 6.300E+004 .132E-002 9.050E+001 1977 7.000E+004 .234E-002 9.868E+001 1978 8.170E+004 .431E-002 1 .144E+002 1979 9.340E+004 .621E-002 1 .296E*002 1980 1.051E+005 .802E-002 1 .441E+002 1981 1.168E+005 .977E-002 1 .581E-t-002 1982 1.285E+005 2.145E-002 1 .715E+002 1983 1.285E+005 2.061E-002 1 .648E+002 1984 1.285E+005 I.980E-002 .583E+002 1985 1.285E+005 I.902E-002 .521E+002 1986 1.285E+005 1.828E-002 .461E+002 1987 1 .285E+005 I.756E-002 .404E+002 1988 1 .285E+005 1.687E-002 .349E+002 1989 1 .285E+005 I.621E-002 .296E+002 1990 1.285E+005 1.558E-002 .245E+002 1991 1.285E+005 1.496E-002 .196E+002 1992 1.285E+005 1.438E-002 .150E+002 1993 1.285E+005 1.382E-002 .105E+002 1994 1.285E+005 I.327E-002 .061E+002 1995 1.285E+005 I.275E-002 .020E+002 1996 1.285E+005 I.225E-002 9.798E+001

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Model Parameters - Southern Section

Lo : 8120.000000 ft*3 / Mg k : 0.040000 1/yr ***** Note : Default value not used ****

NMOC : 103.600000 pprov ***** Note : Default value not used **** Methane : 40.600000 X volume ***** Note : Default value not used ****

Air Toxics Parameters Chemical Na

Vinyl Chloride Trichloroethene trans-1,2 Dichloroethene cis-1,2 Dichloroethene Benzene Toluene Ethyl benzene

Molecular Wt Concentration

62.500 1.900 131.400 0.420 96.950 0.420 96.950 0.000 78.100 1.120 92.100 0.960 106.200 1.040

r Landfill Parameters

Year Opened : 1967 Current Year : 1992 Year Closed: 1982 Capacity : 128500.000000 Mg Average Acceptance Rate : 5140.000000 Mg/year Average Acceptance Rate Required from

Current Year to Closure Year : 0.000000 Mg/year

Model Parameters

Year Refuse In Place (Mg)

1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996

7.000E+003 1.400E+004 2.100E+004 2.800E+004 3.500E+004 4.200E+004 4.900E+004 5.600E+004 6.300E+004 7.000E+004 8.170E+004 9.340E+004 1.051E+005 1.168E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005 1.285E+005

Methane Emission Rate (Mg/yr)

4.295E+001 8.422E+001 1.239E+002 1.620E+002 1.986E+002 2.337E+002 2.675E+002 3.000E+002 3.312E+002 3.611E+002 4.188E+002 4.741E+002 5.273E+002 5.785E+002 6.276E+002 6.030E+002 5.793E+002 5.566E+002 5.348E+002 5.138E+002 4.937E+002 4.743E4-002 4.557E+002 4.378E+002 4.207E+002 4.042E+002 3.884E+002 3.732E+002 3.585E+002

(Cubic Ft/yr)

2.274E+006 4.458E+006 6.557E+006 8.573E+006 1.051E+007 .237E+007 .416E+007 .588E+007 .753E+007 .912E+007 2.217E+007 2.510E+007 2.791E+007 3.062E+007 3.322E+007 3.192E+007 3.067E+007 2.946E+007 2.831E+007 2.720E+007 2.613E+007 2.511E+007 2.412E+007 2.318E+007 2.227E+007 2.140E+007 2.056E*007 1.975E+007 1.898E+007

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NHOC Emission Rate (as Hexane) Year Refuse In Place (Kg)

1968 7.000E+003 1969 1 .400E+004 1970 2.100E+004 1971 2.800E+004 1972 3.500E+004 1973 4.200E+004 1974 4.900E+004 1975 5.600E+004 1976 6.300E+004 1977 7.000E+004 1978 8.170E+004 1979 9.340E+004 1980 .051E+005 1981 1 .168E+005 1982 1 .285E+005 1983 1 .285E+005 1984 .285E+005 1985 .285E+005 1986 .285E+005 1987 .285E+005 1988 .285E+005 1989 .285E+005 1990 .285E+005 1991 .285E+005 1992 .285E+005 1993 .285E+005 1994 .285E+005 1995 .285E+005 1996 .285E+005

Selected Air Toxic:

Year Refuse In Place (Mg)

1968 7.000E+003 1969 1 .400E+004 1970 2.100E+004 1971 2.800E+004 1972 3.500E+004 1973 4.200E+004 1974 4.900E+004 1975 5.600E+004 1976 6.300E+004 1977 7.000E+004 1978 8.170E+004 1979 9.340E+004 1980 .051E+005 1981 .168E+005 1982 .285E+005 1983 .285E+005 1984 .285E+005 1985 .285E+005 1986 .285E+005 1987 .285E+005 1988 .285E+005 1989 .285E+005 1990 .285E+005 1991 .285E+005 1992 .285E+005 1993 .285E+005 1994 .285E+005 1995 .285E+005 1996 I.285E+005

(Mg/yr)

5.889E-0021.155E-0011.698E-0012.221E-0012.722E-0013.204E-0013.668E-0014.113E-0014.540E-0014.951E-0015.741E-0016.500E-0017.230E-0017.931E-0018.604E-0018.266E-0017.942E-0017.631E-0017.332E-0017.044E-0016.768E-0016.503E-0016.248E-0016.003E-0015.767E-0015.542E-0015.325E-0015.115E-0014.916E-001

Vinyl Chloride

(Mg/yr)

7.832E-004 1.536E-0032.259E-0032.953E-0033.621E-0034.262E-0034.878E-0035.470E-0036.039E-0036.585E-0037.636E-003 8.646E-003 9.616E-003 .055E-002 .144E-002 .099E-002 .056E-002 .015E-002 9.752E-003 9.369E-003 9.002E-003 8.649E-003 8.310E-003 7.984E-003 7.671E-003 7.372E-003 7.083E-0036.804E-0036.539E-003

(Cubic Ft/yr)

5 .802E+002 1 .138E+003 1 .673E+003

2.188E+003 2.682E+003 3.157E+003 3.613E+003 4.052E+003 4.473E+003 4.878E+003 5.656E+003 6.404E+003 7.123E+003 7.813E+003 8.477E+003 8.144E+003 7.825E+003 7.518E+003 7.223E-KI03 6.940E+003 6.668E+003 6.406E+003 6.155E+003 5.914E+003

!..682E+003 5>.461£f003 Si.246E+003 !i.040E+003

4.843Ef003

(Cubic Ft/yr)

.064E+001 2.086E+001 3.068E+001 4.012E+001 4.919Et-001 5.790E+001 6.627E+001 7.431E+001 8.204E+001 8.946E+001

.037E+002

.175E+002

.306E+002

.433E+002

.555Ef002

.494E+002

.435E+002

.379E+002

.325E+002

.273E+002

.223E+002

.175E+002

.129Et-002

.085E+002

.042E+002

.001E+002 9.622E+001 9.243E+001 8.882E+001

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Selected Air Toxic: Trichloroethene

Year Refuse In Place (Mg)

1968 7.000E+003 1969 1 .400E+004 1970 2.100E+004 1971 2.800E+004 1972 3.500E+004 1973 4.200E+004 1974 4.900E+004 1975 5.600E+004 1976 6.300E+004 1977 7.000E*004 1978 8.170E+004 1979 9.340E+004 1980 .051E+005 1981 .168E+005 1982 .285E+005 1983 .285E+005 1984 .285E+005 1985 .285E+005 1986 .285E+005 1987 .285E+005 1988 .285E+005 1989 .285E+005 1990 .285E+005 1991 .285E+005 1992 .285E+005 1993 .285E+005 1994 .285E+005 1995 .285E+005 1996 .285E+005

Selected Air Toxic: trans

Year Refuse In Place (Mg)

1968 7.000E+003 1969 1.400E+004 1970 2.100E+004 1971 2.800E+004 1972 3.500E+004 1973 4.200E+004 1974 4.900E+004 1975 5.600E+004 1976 6.300E+004 1977 7.000E+004 1978 8.170E+004 1979 9.340E+004 1980 .051E+005 1981 .168E+005 1982 .285E+005 1983 .285E+005 1984 .285E+005 1985 .285E+005 1986 .285E+005 1987 .285E+005 1988 .285E+005 1989 .285E+005 1990 .285Ef005 1991 .285E+005 1992 .285E+005 1993 .285E+005 1994 .285E+005 1995 .285E+005 1996 .285E+005

(Mg/yr)

3.640E-004 7.137E-004 1.050E-003 1.373E-003 1.683E-003 1.981E-003 2.267E-003 2.542E-003 2.806E-003 3.060E-003 3.549E-003 4.018E-003 4.469E-003 4.902E-003 5.318E-003 5.110E-003 4.909E-003 4.717E-003 4.532E-003 4.354E-003 4.183E-003 4.019E-003 3.862E-003 3.710E-003 3.565E-003 3.426E-003 3.291E-003 3.162E-003 3.038E-003

-1,2 Dichloroethene

(Mg/yr)

2.686E-004 5.266E-004 7.745E-004 .013E-003 .242E-003 .461E-003 .673E-003 .876E-003 2.071E-003 2.258E-003 2.618E-003 2.965E-003 3.297E-003 3. 61 7E -003 3.924E-003 3.770E-003 3.622E-003 3.480E-003 3.344E-003 3.213E-003 3.087E-003 2.966E-003 2.849E-003 2.738E-003 2.630E-003 2.528E-003 2.428E-003 2.333E-003 2.242E-003

(Cubic Ft/yr)

2.352E+000 4.612E+000 6.783E+000 8.869E+000 1.087E+001 1.280E+001 1.465E+001 1.643E+001 1.813E*001 1.978E+001 293E+001 596E+001 888E+001 168E+001 436E+001

3.302E+001 3.172E+001 3.048E*001 2.928E+001 2.814E+001 2.703E+001 2.597E*001 2.495E+001 2.398E+001 2.304E+001 2.214E+001 2.127E+001 2.043E+001 1.963E+001

(Cubic Ft/yr)

2.352E+000 4.612E+000 6.783E+000 8.869E+000 1.087E+001 1.280E+001 1.465E+001 1.643E+001 1.813E+001 1.978E+001 293E*001 596E+001 888E+001 1686+001 436E+001

3.302E+001 3.172E+001 3.0A8E+001 2.928E+001 2.814E+001 2.703E+001 2.597E+001 2.495E+001 2.398E+001 2.304E+001 2.214E+001 2.127E+001 2.043E+001 1.963E+001

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Selected Air Toxic: cis-1,2 Dichloroethene =3== ====SBKSS= E=== 8SS=SSSSSSSESSSXSSEEXSSSSS

Selection Results were All Zero

Selected Air Toxic: Benzene

Year Refuse In Place (Mg)

1968 7.000E+003 1969 1 .400E+004 1970 2.100E+004 1971 2.800E+004 1972 3.500E+004 1973 4.200E+004 1974 4.900E+004 1975 5.600E+004 1976 6.300E+004 1977 7.000E+004 1978 8.170E+004 1979 9.340E+004 1980 .051E+005 1981 .168E+005 1982 .285E+005 1983 .285E+005 1984 .285E+005 1985 .285E+005 1986 .285E+005 1987 .285E+005 1988 .285E+005 1989 .285E+005 1990 .285E+005 1991 .285E+005 1992 .285E+005 1993 .285E+005 1994 .285E+005 1995 .285E+005 1996 .285E+005

(Hg/yr)

5.769E-004 1.131E-003 1.664E-003 2.175E-003 2.667E-003 3.139E-003 3.593E-003 4.029E-003 4.448E-003 4.851E-003 5.625E-003 6.369E-003 7.083E-003 7.770E-003 8.429E-003 8.099E-003 7.781E-003 7.476E-003 7.183E-003 6.901E-003 6.631E-003 6.371E-003 6.121E-003 5.881E-003 5.650E-003 5.430E-003 5.217E-003 5.012E-003 4.816E-003

=XE=

(Cubic Ft/yr)

6.272E+000 1.230E+001 1 .809E+001 2.365E+001 2.900E+001 3.413E+001 3.906E+001 4.380E+001 4.836E+001 5.273E1-001 6.115E+001 6.924E+001 7.700E+001 8.447E+001 9.164E+001 8.805E+001 8.459E+001 8.128E+001 7.809E+001 7.503E+001 7.209E+001 6.926E+001 6.654E+001 6.393E+001 6.143E+001 5.903E+001 5.672E*001 5.448E+001 5.236E+001

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Selected Air Toxic: Toluene

Year Refuse In Place (Mg) (Mg/yr) (Cubic Ft/yr)

1968 7.000E+003 5. 832E-004 5.376E+000 1969 1.400E+004 1. 143E-003 1.054E+001 1970 2.100E+004 1. 682E-003 1.550E+001 1971 2.800E+004 2. 199E-003 2.027E+001 1972 3.500E+004 2. 696E-003 2.485E+001 1973 4.200E+004 3. 173E-003 2.925E+001 1974 4.900E+004 3. 632E-003 3.348E+001 1975 5.600E+004 4. 073E-003 3.755E+001 1976 6.300E+004 4. 496E-003 4.145E-HJ01 1977 7.000E+004 4. 903E-003 4.520E+001 1978 8.170E+004 5. 686E-003 5.241E+001 1979 9.340E+004 6. 437E-003 5.934E+001 1980 1.051E+005 7. 160E-003 6.600E+001 1981 1.168E+005 7. 854E-003 7.240E+001 1982 1.285E+005 8. 520E-003 7.855E+001 1983 I.265E+005 8. 186E-003 7.547E+001 1984 1.285E+005 7. 865E-003 7.251E+001 r 1985 1986 1987

I.285E+005 1.285E+005 1.285E+005

7. 7. 6.

557E-003 261E-003 976E-003

6.967E+001 6.693E+001 6.431E+001

1988 1.285E+005 6. 702E-003 6.179E+001 1989 I.285E+005 6. 440E-003 5.937E+001 1990 I.285E+005 6. 187E-003 5.704E+001 1991 I.285E+005 5. 944E-003 5.480E+001 1992 I.285E+005 5. 711E-003 5.265E+001 1993 I.285E+005 5. 489E-003 5.060E+001 1994 I.285E+005 5. 273E-003 4.861E+001 1995 I.285E+005 5. 066E-003 4.670E+001 1996 1.285E+005 4. 868E-003 4.488E1-001

Selected Air Toxic: Ethylbenzene

Year Refuse In Place (Mg) (Mg/yr) (Cubic Ft/yr)

1968 7.000E+003 7. 285E-004 5.824E+000 1969 1 .400E+004 1. 428E-003 1.142E+001 1970 2.100E+004 2. 101E-003 1 .680E+001 1971 2.800E+004 2. 747E-003 2.196E+001 1972 3.500E+004 3. 368E-003 2.692E+001 1973 4.200E+004 3. 964E-003 3.169E+001 1974 4.900E+004 4. 537E-003 3.627E+001 1975 5.600E+004 5. 088E-003 4.068E+001 1976 6.300E+004 5. 617E-003 4.490E+001 1977 7.000E+004 6. 125E-003 4.897E+001 1978 8.170E+004 7. 102E-003 5.678E+001 1979 9.340E+004 8. 041E-003 6.429E+001 1980 .051E+005 8. 944E-003 7.150E+001 1981 .168E+005 9. 811E-003 7.843E+001 1982 .285E+005 1. 064E-002 8.509E+001 1983 .285E+005 1. 023E-002 8.176E+001 1984 .285E+005 9. 825E-003 7.855E+001 1985 .285E+005 9. 440E-003 7.547E+001 1986 .285E+005 9. 070E-003 7.251E+001 1987 .285E+005 8. 714E-003 6.967E+001 1988 .285E+005 8. 372E-003 6.694E+001 1989 .285E+005 8. 044E-003 6.431E+001 1990 .285E+005 7. 729E-003 6.179E+001 1991 .285E+005 7. 426E-003 5.937E-t-001 1992 .285E+005 7. 135E-003 5.704E+001 1993 .285E+005 6. 857E-003 5.482E+001 1994 .285E+005 6. 588E-003 5.267E+001 1995 .285E+005 6. 328E-003 5.059E+001 1996 .285E+005 6. 081E-003 4.862E+001

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