1 27 27 27 27 TOC 1 189 189 189 189 TSS 1 22 22 22 22 TRACE ELEMENTS Metals Antimony 1 10.8 10.8 10.8 10.8 Arsenic 1 29.8 29.8 29.8 29.8 Barium 1 147.41 147.41 147.41 147.41 Boron 1 16250 16250 16250 16250 Calcium 1 280660 280660 280660 280660 Chloride 1 299 299 299 299 Chromium 1 9.88 9.88 9.88 9.88 Copper 1 28.64 28.64 28.64 28.64 Europium 1 9.88 9.88 9.88 9.88 Fluoride 1 0.2 0.2 0.2 0.2 Germanium 1 126.6 126.6 126.6 126.6 Gold 1 41.52 41.52 41.52 41.52 Iridium 1 75.35 75.35 75.35 75.35 Iron 1 5429.8 5429.8 5429.8 5429.8 Lead 1 28.06 28.06 28.06 28.06 Magnesium 1 138820 138820 138820 138820 Manganese 1 7151.5 7151.5 7151.5 7151.5 Neodymium 1 22.6 22.6 22.6 22.6 Niobium 1 80.62 80.62 80.62 80.62 Phosphorus 1 590.62 590.62 590.62 590.62 Potassium 1 74175.2 74175.22 74175.22 74175.22 Ruthenium 1 133.98 133.98 133.98 133.98 Samarium 1 111.78 111.78 111.78 111.78 Scandium 1 8.22 8.22 8.22 8.22 Selenium 1 1.7 1.7 1.7 1.7 Silicon 1 8265.17 8265.17 8265.17 8265.17 Sodium 1 365380 365380 365380 365380 Strontium 1 2904.6 2904.6 2904.6 2904.6 Sulfur 1 386573 386572.9 386572.9 386572.9 Thorium 1 146.06 146.06 146.06 146.06 Thulium 1 19.09 19.09 19.09 19.09 Titanium 1 5.85 5.85 5.85 5.85 Zinc 1 102.11 102.11 102.11 102.11 Organics Ammonia as Nitrogen 1 0.67 0.67 0.67 0.67 Chloroform 2 7.49 9.05 10.61 11 Disulfoton 1 4.42 4.42 4.42 4.42 Methylene chloride 1 6.2 6.2 6.2 6.2 MCPA 1 490 490 490 490 MCPP 1 490 490 490 490 Toluene 1 4.1 4.1 4.1 4.1 Trichloroethane 1 143.925 143.925 143.925 143.925 Trichlorofluoromethane 1 54 54 54 54 TPHC 4 2130 3300 4890 5100 1,1

Dichloroethane 2 5.54 6.5 7.46 7.7 1,1

Dichloroethene 2 13.4 15 16.6 17 1,1,1

Trichloroethane 1 5.8 5.8 5.8 5.8 Vinyl chloride 4 20.8 25 34.1 38 1,4

Dioxane 1 57.29 57.29 57.29 57.29 Data Source Effluent Guidelines for Landfill Point Source Category:

Mormon Hollow Site Visit Report,

October 4,

1994. LANDFILL CASE 14:

NORTHERN STATES POWER WOODFIELD ASH MONOFILL Ashland 2

Mile

Radius 1

Mile

Radius NSP

Bayfront

Ash

Landfill Lat:

46.584722

Long:

90.898611 Ashland

County,

WI. This

computer

representation

has

been

compiled

by

the

U.

S. Environmental

Protection

Agency

(

EPA)

from

sources

which

have supplied

data

or

information

that

has

not

been

verified

by

the the

EPA.

This

data

is

offered

here

as

a

general

representation only,

and

is

not

to

be

used

for

commercial

purposes

without verification

by

an

independant

professional

qualified

to

verify such

data

or

information.

The

EPA

does

not

guarantee

the accuracy,

completeness,

or

timeliness

of

the

information

shown, and

shall

not

be

liable

for

any

loss

or

injury

resulting

from reliance

upon

the

information

shown. Albers

Projection LEGEND Basin

Boundary USGS

Catalog

Unit County

Boundary 1990

Population

Density

Per

Sq

Mi Under

10 10

100 100

1,000 1,000

3,000 3  ,000

6,000 6  ,000

10,000 10,000

20,000 O  ver

20,000 0  0  .1 0  .2 0  .3 0  .4 0  .5 0  .6 0  .7 0  .8 0  .9 1 Miles Produced

September

21,

1999 By

SITEPLUS

(

Req

s44837) U.

S.

Environmental

Protection

Agency Identification Landfill Construction and Controls LandfilledWaste Leachate Quantity Name:

Northern States PowerWoodfield Ash Monofill Physical address:

Front Street Ashland,

WI 54806 Owner:

Northern States Power (

NSP) Ownership status:

Captive Facility contact:

LeroyWilder,

Jr.,

Coordinator,

715

839

2691 State license no.:

03233 Landfill type:

Industrial (

Combustion ash) Permitting status:

Active Type of LCS:

Standard with drainage blanket and geotextile Number of phases:

Five (

5) Status:

Phases 1 and 2 are active;

Phases 3   5 have not been constructed Liner type:

5 feet of compacted clay Cover type:

No final caps or covers Operational period:

March 1994 to present Permitted wastes:

Wood ash and coal ash from NSP plants Overall location area:

240 acres Permitted area:

9 acres Total permitted capacity:

255,000 yd ³ (

includes waste and intermediate cover) Estimated year of closure:

2009 Underlying geology/

soil type:

Surface soils are clay to clay loams underlain by sandy till and sandstone bedrock at a depth 250 feet Depth to aquifer:

120 feet (

confined) Nature of waste:

Coal and wood combustion ash from NSP Bay Front Plant Average annual quantity landfilled:

15,500 tons Average annual volume landfilled:

15,900 yd ³ Total cumulative quantity landfilled:

67,184 tons Total cumulative volume landfilled:

69,172 yd ³ Liquid to solid ratio:

0.05 L/

kg Average leachate generation:

Approximately 975,000 gallons Average annual precipitation:

30 inches Year Quantity (

tons)

Volume (

yd ) 3 Exhibit 2.

Waste Data 1994 1995 1996 1997 1998*

7,833 12,079 14,119 18,000 15,153 12,841 13,421 12,835 16,300 13,775 *

as of October 1998 Exhibit 3.

Leachate Quantity Data Year 1995 1994 1996 1997 1998 Quantity (

gallons)

12,000 834,000 2,196,000 978,000 863,000 Phase Status Liner Operational Period 1 Active Active 5 feet of compacted clay Exhibit 1.

Landfill Construction and Controls 2 3 March 1994 to present January 1994 to present Proposed Leachate Quality Exhibit 4.

Leachate Composition Data Concentration (

ug/

l) PARAMETER OBS 10th 50th 95th MAX %

Detect PHYSICAL/

CHEMICAL PROPERTIES Alkalinity (

mg/

l as CaCO3)

12 548.9 2603.5 3825.25 4345 100% BOD (

mg/

l)

26 3.5 22.3 157.5 210 100% Chloride (

mg/

l)

12 120.7 489 1237 1435 100% COD (

mg/

l)

12 56.7 309.5 2408.5 2700 100% Hardness (

mg/

l as CaCO3)

11 69 97 299.5 359 100% pH (

su)

26 7.32 9.29 12.3975 12.44 100% Specific Conductance (

umho/

cm)

23 242.848 3120 20090 23300 100% Sulfate (

mg/

l)

12 665.5 5401.453 8952.041 9740 100% TSS (

mg/

l)

26 6.1 80.4 303.25 431.2 100% TRACE ELEMENTS Metals Arsenic 2 14 70 133 140 50% Barium 7 35.472 140 258 300 100% Boron (

mg/

l)

12 0.01 0.17665 17.32 38 83% Calcium (

mg/

l)

3 19.76 28 42.4 44 100% Chromium 2 4 20 38 40 50% Fluoride (

mg/

l)

2 0.172 0.26 0.359 0.37 100% Iron (

mg/

l)

12 0.246 1.625 7.825 11.4 100% Lead 12 0 0 43.5 60 33% Magnesium (

mg/

l)

2 4.66221 5.52345 6.492345 6.6 100% Manganese 5 8.448 54.5 71.8 73 100% Mercury 7 0 0.2 2.46 3 57% Phenol 1 24 24 24 24 100% Phosphorus (

mg/

l)

21 0.02 2.7 4 4.4 95% Potassium (

mg/

l)

2 1807.9 3619.5 5657.55 5884 100% Selenium 12 5.54 62 3260 7000 100% Silver 7 0 0 14 20 14% Sodium (

mg/

l)

2 264.4 510 786.3 817 100% Sodium (

mg/

l)

2 264.4 510 786.3 817 100% Data Source Wisconsin Department of Natural Resources File review conducted by SAIC (

September 1999) LANDFILL CASE 15:

WMWI TIMBERLINE TRAIL MUNICIPAL LANDFILL Exhibit 3.

Leachate Quantity Data Year 1995 1996 1997 1998 Quantity (

gallons)

1,524,597 1,124,259 1,643,438 3,922,523 2

Mile

Radius 1

Mile

Radius WMWI

Timberline

Trail

Landfill Lat:

45.45364

Long:

91.35843 Rusk

County,

WI. This

computer

representation

has

been

compiled

by

the

U.

S. Environmental

Protection

Agency

(

EPA)

from

sources

which

have supplied

data

or

information

that

has

not

been

verified

by

the the

EPA.

This

data

is

offered

here

as

a

general

representation only,

and

is

not

to

be

used

for

commercial

purposes

without verification

by

an

independant

professional

qualified

to

verify such

data

or

information.

The

EPA

does

not

guarantee

the accuracy,

completeness,

or

timeliness

of

the

information

shown, and

shall

not

be

liable

for

any

loss

or

injury

resulting

from reliance

upon

the

information

shown. Albers

Projection LEGEND Basin

Boundary USGS

Catalog

Unit County

Boundary 1990

Population

Density

Per

Sq

Mi Under

10 10

100 100

1,000 1,000

3,000 3  ,000

6,000 6  ,000

10,000 10,000

20,000 O  ver

20,000 0  0  .1 0  .2 0  .3 0  .4 0  .5 0  .6 0  .7 0  .8 0  .9 1 Miles Produced

September

21,

1999 By

SITEPLUS

(

Req

s41762) U.

S.

Environmental

Protection

Agency Identification Landfill Construction and Controls LandfilledWaste Leachate Quantity Name:

WMWI Timberline Trail Landfill Address:

P.

O.

Box 160 Bruce,

WI 54819 Owner:

Waste Management ofWisconsin (

WMWI) Ownership status:

Commercial Facility contact:

Scott O'Neill,

Site Manager,

715

868

7000 State license no.:

03455 Landfill type:

Municipal SolidWaste (

MSW) Permitting status:

Active Type of LCS:

Standard Number of phases:

Five (

5) Status:

Portions of phases 1   4 are active Liner type:

4 feet of compacted clay,

60 mil geomembrane,

and geotextile Cover type:

Daily cover of petroleum contaminated soil Estimated year of closure:

2006 (

as of January 1997) Operational period:

January 5,

1995 to present Waste acceptance:

Municipal (

MSW),

asbestos,

petroleum contaminated soil, demolition,

coal combustion ash,

foundry,

and other non

hazardous wastes Overall location area:

160 acres Permitted area:

27 acres Total permitted capacity:

2,933,000 yd Depth to aquifer:

25 feet Special practice:

Operate a bio

remediation facility on

site (

store bio

waste in landfill prior to treatment). Nature of waste:

MSW,

asbestos,

petroleum contaminated soil,

demolition, coal combustion ash,

foundry and other non

hazardous wastes including:

filters,

wood blocks,

pre

treatment sludge and recycling rejects Total cumulative quantity landfilled:

630,086 tons (

as of January 1997) Total cumulative volume landfilled:

777,495 yd ³ (

as of January 1997) Liquid to solid ratio:

0.024 L/

kg Average annual leachate generation:

2,054,000 gallons Average annual precipitation:

32 inches 3 Phase Status Liner Operational Period 1 Active Active 4 feet of compacted clay, 60 mil geomembrane,

and geotextile Active Active Exhibit 1.

Landfill Construction and Controls 2 3 4 Jan.

1995 to present Nov.

1997 to present Nov.

1996 to present 5 Proposed Sept.

1998 to present Year Quantity (

tons)

Volume (

yd ) 3 Exhibit 2.

Waste Data 1995 1996 118,244 264,644 1997 76,859 183,834 232,590 357,830 Leachate Quality Exhibit 4.

Leachate Composition Data PARAMETER Concentration (

ug/

l) OBS 10th 50th 95th MAX %

Detect PHYSICAL/

CHEMICAL PROPERTIES Alkalinity (

mg/

l as CaCO3)

7 290 825 2319.4 2410 100% BOD (

mg/

l)

49 273.6 2760 7165.6 8800 96% Chloride (

mg/

l)

7 43.98 172 411.1 439 100% COD (

mg/

l)

7 291.6 1720 6166 6340 86% Hardness (

mg/

l as CaCO3)

7 283.2 1180 2679 2970 100% Nitrate Nitrogen (

mg/

l)

3 0 0 0.0477 0.053 33% Nitrogen,

Ammonia (

mg/

l)

3 57.36 97.2 116.82 119 100% Nitrogen,

Kjeldahl (

mg/

l)

3 84.92 117 128.7 130 100% pH (

su)

49 5.362 6.26 6.906 7.04 100% Specific Conductance (

umho/

cm)

49 794 2290 4160 4710 100% Sulfate (

mg/

l)

7 8.58 26.5 84.77 91.1 86% TSS (

mg/

l)

49 30.8 150 1692.4 20500 100% TRACE ELEMENTS Metals Barium 6 0 328.5 5425 6870 67% Beryllium 4 0 0 38.76 45.6 25% Cadmium 7 0 1.2 3.32 3.5 57% Chromium 6 14.45 35.45 1546.5 2020 100% Cobalt 4 19.5 68.9 979.92 1140 75% Copper 6 0 19.5 3919.5 5210 67% Fluoride (

mg/

l)

2 0.248 0.44 0.656 0.68 100% Iron (

mg/

l)

7 21.512 107 1693.4 2330 100% Lead 5 0 0 184.8046 231 40% Manganese 7 5328 21400 31680 32100 100% Mercury 7 0 0 1.96 2.8 14% Nickel 6 44.9 78.2 2377.5 3120 100% Phosphorus (

mg/

l)

47 0.3332 0.92 3.814 5.76 100% Potassium (

mg/

l)

2 38.11 64.15 93.445 96.7 100% Selenium 6 0 0 9.95 11.4 33% Sodium (

mg/

l)

7 44.7 140 366.4 367 100% Vanadium 4 0 31.25 3103.375 3640 50% Zinc 6 62.75 643.5 9905 12600 100% Organics 1,1,1

Trichloroethane 7 4.2 32 123.8 140 86% 1,1

Dichloroethane 7 0 25 60.9 63 57% 1,1

Dichloroethylene 7 9 55 193.2 240 86%

2

Hexanone 7 0 32 179 200 57% 4

Methyl

2

pentanone (

mibk)

7 50.4 190 247 250 86% Acetone 7 126 2500 5930 6500 86% Arsenic 6 4.15 10.9 75.3 88.9 83% Benzene 7 0 0 4.4 5 29% Carbon Tetrachloride 7 0 0 28 40 14% Chloroethane 7 0 10 25.8 30 57% Chloromethane 7 0 0 2.8 4 14% cis

1,2

dichloroethene 7 0 0 6.1 7 29% Dichlorodifluoromethane 7 0 0 1.4 2 14% Dichloromethane 7 144 720 1606 1900 100% Diethyl Phthalate 2 4.5 22.5 42.75 45 50% Ethylbenzene 7 0 9 35.7 39 57% Fluorotrichloromethane 7 0 0 25.1 35 29% Methyl Ethyl Ketone (

MEK)

7 566 4400 8470 8500 100% Methyl Tert

butyl Ether (

MTBE)

7 0 0 3.7 4 29% Naphthalene 7 0 0 5.6 8 14% o

dichlorobenzene 7 0 0 0.7 1 14% p

dichlorobenzene 7 0 0 2.4 3 29% Phenol 2 338 610 916 950 100% Phenolics 1 818 818 818 818 100% Styrene 7 0 2 21 27 57% Tetrachloroethylene 7 0 3 6.4 7 57% Tetrahydrofuran 7 268 570 1156 1300 100% Toluene 7 96.8 310 1088 1400 100% Trichloroethylene (

tce)

7 0 5 17.8 22 57% Vinyl Chloride 7 0 0 11.2 13 29% Xylenes 7 22.8 68 178 190 86% Data Source Wisconsin Department of Natural Resources File review conducted by SAIC (

September 1999) Year 1994 1995 1996* Quantity (

gallons)

2,109,698 2,931,857 945,648 Exhibit 3.

Leachate Quantity Data *

Quantity for January through March only Year Waste Type Quantity (

tons)

Volume (

yd ) 3 Exhibit 2.

Waste Data Foundry waste 221,886 119,197 185,633 164,360 160,916 137,506 1994 1995 1996 Phase Status Liner Operational Period Final Cover 1A Closed Closed 5 feet of compacted clay Active Active 1B 2 3A April 1994 to Late 1996 1995 to Late 1998 August 1995 to present Late 1996 to present 6 inches compacted clay,

30 inch rooting zone, 6 inch top soil N/

A 3B Proposed 1 foot compacted clay,

30 inch rooting zone, 6 inch top soil N/

A EstimatedWaste Capacity (

yd ) 3 274,000 267,800 792,000 Exhibit 1.

Landfill Construction and Controls LANDFILL CASE 16:

WAUPACA FOUNDRY MONOFILL Waupaca 2Mile Radius 1Mile Radius Waupaca Foundry Landfill  Lat:

44.353624 Long:

89.12038 Waupaca County,

WI. This computer representation has been compiled by the U.

S. Environmental Protection Agency (

EPA)

fromsources which have supplied data or information that has not been verified by the the EPA.

This data is offered here as a general representation only,

and is not to be used for commercial purposes without verification by an independant professional qualified to verify such data or information.

The EPA does not guarantee the accuracy,

completeness,

or timeliness of the information shown, and shall not be liable for any loss or injury resulting from reliance upon the information shown. Albers Projection LEGEND Basin Boundary USGS Catalog Unit County Boundary 1990 Population Density Per Sq Mi Under 10 10

100 100

1,000 1,000

3,000 3,000

6,000 6,000

10,000 10,000

20,000 Over 20,000 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Miles Produced September 20,

1999 BySITEPLUS (

Req s43716) U.

S.

Environmental Protection Agency Identification Landfill Construction and Controls LandfilledWaste Leachate Quantity Name:

Waupaca Foundry Monofill Address:

Granite Valley and Elm Valley Roads Waupaca,

WI 54981 Owner:

Waupaca Foundry,

Inc. Ownership status:

Captive Facility contact:

Jeffrey Loeffler,

Environmental Coordinator,

715

258

6611 State license no.:

03412 Landfill type:

Industrial (

Foundry) Permitting status:

Active Type of LCS:

Standard with 1

foot drainage layer and geotextile Number of phases:

Three (

3) Status:

Phase 2 and 3A are active Liner type:

5 feet of compacted clay Operational period:

April 1994 to present Estimated year of closure:

2004 (

as of Jan.

1997) Waste acceptance:

Accepts only high volume foundry waste fromWaupaca Foundry including system sand,

slag,

WWT cakes,

core sands,

cleaning room wastes and refractories Permitted area:

19.5 acres Total permitted capacity:

1,493,000 yd ³ Underlying geology/

soil type:

Surface soils include sandy loams underlain by granite bedrock at 100 feet Special practices:

In August of 1995,

began re

using leachate as dust suppressant on waste prior to landfilling Nature of waste:

Foundry system sand,

slag,

WWT cakes,

core sands, cleaning room waste and refractories Total cumulative quantity landfilled:

526,716 tons (

as on January 1997) Total cumulative volume landfilled:

462,782 yd ³ (

as of January 1997) Liquid to solid ratio:

0.033 L/

kg (

based on 1995 data) Average annual leachate generation:

2,520,000 gallons Average annual precipitation:

32 inches Leachate Quality Exhibit 4.

Leachate Composition Data PARAMETER Concentration (

ug/

l) OBS 10th 50th 95th MAX %

Detect PHYSICAL/

CHEMICAL PROPERTIES Alkalinity (

mg/

l as CaCO3)

17 180 230 284 300 100% BOD (

mg/

l)

17 0 0 14 26 47% Chloride (

mg/

l)

17 156 230 548 740 100% COD (

mg/

l)

17 26.4 42 101.2 110 100% Hardness (

mg/

l as CaCO3)

17 280 350 570 610 100% Nitrogen,

Ammonia (

mg/

l)

3 0.098 0.25 0.34 0.35 100% Nitrogen,

Kjeldahl (

mg/

l)

4 0.748 1.15 2.745 3 100% pH (

su)

17 7.26 7.57 7.802 7.81 100% Specific Conductance (

umho/

cm)

17 1860 2300 2880 3200 100% Sulfate (

mg/

l)

17 326 570 1200 1200 100% TSS (

mg/

l)

17 5.6 12 298 530 100% TRACE ELEMENTS Metals Barium 3 35 55 67.6 69 100% Cadmium 5 0 0 0.464 0.58 20% Chromium 3 1.088 1.8 3.42 3.6 100% Copper 3 4.48 8 17.9 19 100% Cyanide (

mg/

l)

3 0.003 0.015 0.0303 0.032 67% Fluoride (

mg/

l)

5 1.552 4.6 5.68 5.8 100% Iron (

mg/

l)

5 0.284 0.58 2.72 3.1 100% Lead 17 0 3.4 49.2 94 82% Manganese 5 372 800 1080 1100 100% Nickel 3 1.72 2.2 5.35 5.7 100% Phosphorus (

mg/

l)

3 0.102 0.17 0.404 0.43 100% Potassium (

mg/

l)

3 5.1 7.1 8.9 9.1 100% Sodium (

mg/

l)

17 248 400 506 730 100% Zinc 3 20.2 25 101.5 110 100% Organics 1,3,5

Trimethylbenzene 4 0 0 0.102 0.12 25% Benzene 4 0 0 0.2805 0.33 25% Dichloromethane 4 0 0 0.136 0.16 25% Isopropylbenzene 4 0 0 0.187 0.22 25% Methyl tert

butyl Ether (

mtbe)

4 0 0 0.2635 0.31 25% Naphthalene 4 0 0 0.3145 0.37 25%

Data Source Wisconsin Department of Natural Resources File review conducted by SAIC (

September 1999) LANDFILL CASE 17:

WESTSIDE RECYCLINGAND DISPOSAL LANDFILL 2Mile Radius 1Mile Radius Westside Landfill  Lat:

41.918709 Long:

85.710514 St.

Joseph County,

MI. This computer representation has been compiled by the U.

S. Environmental Protection Agency (

EPA)

fromsources which have supplied data or information that has not been verified by the the EPA.

This data is offered here as a general representation only,

and is not to be used for commercial purposes without verification by an independant professional qualified to verify such data or information.

The EPA does not guarantee the accuracy,

completeness,

or timeliness of the information shown, and shall not be liable for any loss or injury resulting from reliance upon the information shown. Albers Projection LEGEND Basin Boundary USGS Catalog Unit County Boundary 1990 Population Density Per Sq Mi Under 10 10

100 100

1,000 1,000

3,000 3,000

6,000 6,000

10,000 10,000

20,000 Over 20,000 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Miles Produced September 02,

1999 BySITEPLUS (

Req s45356) U.

S.

Environmental Protection Agency Identification Landfill Construction and Controls LandfilledWaste Name:

Westside Recycling and Disposal Facility Address:

60050 Roberts Road Three Rivers,

MI 49093 Owner:

Waste Management of Michigan,

Inc. Ownership status:

Commercial Facility contact:

Eric Shafer,

Site Operator,

616

279

5444 EPA ID:

MID985634583 Landfill types:

Subtitle D and Construction and Demolition Debris (

C&

D) Permitting status:

Active Type of LCS:

Network of drains overlain on the liners in each landfill;

leachate is conveyed through force mains to an on

site above ground aeration tank Number of landfills:

Four (

4) Regulatory permitting controls:

Permitted to operate a Type II   sanitary waste landfill and a Type III construction and demolition landfill by the Michigan Department of Natural Resources MIDNR) Waste acceptance:

Customer must prepare a waste analysis plan and perform any necessary analysis required by WMX or the MIDNR to properly identify the waste stream prior to acceptance at the landfill for disposal Overall location area:

220 acres Permitted area:

122.5 acres Permitted capacity (

active landfill):

7.8 million yd ³ (

Type II Sanitary) Run

on/

off controls:

1 foot of intermediate clay cover placed on the outside slopes Underlying geology/

soil type:

30 feet of sand and gravel Depth to aquifer:

16 feet Nature of waste:

Cells 1   13:

municipal waste,

non

hazardous industrial waste, asbestos,

sewage sludge (

Type II) C&

D LF:

construction and demolition waste (

Type III) Average annual volume landfilled:

Cells 8   13:

1,014,000 yd ³ Total cumulative volume landfilled:

Cells 1   4:

1,900,000 yd ³ Cells 8   13:

2,750,000 yd ³ C&

D LF:

265,000 yd ³ Total cumulative quantity landfilled:

3,650,000 tons Liquid to solid ratio:

0.007 L/

kg Average annual leachate generation:

6,000,000 gallons Average annual precipitation:

35.2 inches Leachate Quantity Landfill Type/

Area Cell(

s)

Status Liner LCS Cover Operational Period Type II (

Sanitary)/ 17 acres Closed Closed None None 2 feet compacted clay, topsoil,

vegetative cover 1960   1986 1   4a Single 30

mil PVC liner LCS 1985   1994 Primary LCS and leak detection system 4b Not yet constructed None 5   7 8   13 Active N/

A Not yet constructed Composite cap of PVC liner and one foot compacted clay Exhibit 1.

Landfill Construction and Controls Type II (

Sanitary)/ 32.5 acres Double 30

mil PVC liner Primary LCS and secondary leak detection system Type II (

Sanitary)/ 67 acres Double composite liner Start:

July 1993 Type III (

C&

D)/ 6 acres Active 30

mil PVC liner LCS None Start:

1989 Leachate Quality Exhibit 2.

Leachate Composition Data PARAMETER Concentration (

ug/

l) OBS 10th 50th 90th MAX PHYSICAL/

CHEMICAL PROPERTIES COD 1 14 14 14 14 TDS 1 466 466 466 466 pH 2 7.003 7.015 7.027 7.03 Nitrate/

Nitrite 1 1.34 1.34 1.34 1.34 TRACE ELEMENTS Metals Arsenic 1 3.1 3.1 3.1 3.1 Barium 1 92.2 92.2 92.2 92.2 Boron 1 97.4 97.4 97.4 97.4 Calcium 1 126000 126000 126000 126000 Chloride 2 7264.3 36213.5 65162.7 72400 Fluoride 1 0.17 0.17 0.17 0.17 Iron 1 4960 4960 4960 4960 Magnesium 1 28600 28600 28600 28600 Manganese 1 1600 1600 1600 1600 Potassium 1 3010 3010 3010 3010 Silicon 1 3270 3270 3270 3270 Sodium 1 15000 15000 15000 15000 Strontium 1 200 200 200 200 Sulfur 1 9850 9850 9850 9850 Zinc 1 16 16 16 16 Organics Ammonia as Nitrogen 2 60101.2 300500.1 540900.1 601000 Dalapon 1 6.3 6.3 6.3 6.3 Dicamba 1 10.4 10.4 10.4 10.4 Dichlorprop 1 4.7 4.7 4.7 4.7 Dinoseb 1 3.1 3.1 3.1 3.1 Methylbenzene 1 110 110 110 110 m

xylene 1 51 51 51 51 p

xylene 1 50 50 50 50 Picloram 1 1.4 1.4 1.4 1.4 Toluene 1 520 520 520 520 2,4

D 1 4.8 4.8 4.8 4.8 2,4

DB 1 9.4 9.4 9.4 9.4 2,4,5

T 1 2.2 2.2 2.2 2.2 2,4,5

TP 1 5.5 5.5 5.5 5.5 Data Source Effluent Guidelines for Landfill Point Source Category:

Westside Site Visit Report,

May 26,

1995. LANDFILL CASE 18:

WINNEBAGO COUNTY SUNNYVIEW MUNICIPAL LANDFILL 2

Mile

Radius 1

Mile

Radius Winnebago

County

Sunnyview

Landfill Lat:

43.947004

Long:

88.539705 Winnebago

County,

WI. This

computer

representation

has

been

compiled

by

the

U.

S. Environmental

Protection

Agency

(

EPA)

from

sources

which

have supplied

data

or

information

that

has

not

been

verified

by

the the

EPA.

This

data

is

offered

here

as

a

general

representation only,

and

is

not

to

be

used

for

commercial

purposes

without verification

by

an

independant

professional

qualified

to

verify such

data

or

information.

The

EPA

does

not

guarantee

the accuracy,

completeness,

or

timeliness

of

the

information

shown, and

shall

not

be

liable

for

any

loss

or

injury

resulting

from reliance

upon

the

information

shown. Albers

Projection LEGEND Basin

Boundary USGS

Catalog

Unit County

Boundary 1990

Population

Density

Per

Sq

Mi Under

10 10

100 100

1,000 1,000

3,000 3  ,000

6,000 6  ,000

10,000 10,000

20,000 O  ver

20,000 0  0  .1 0  .2 0  .3 0  .4 0  .5 0  .6 0  .7 0  .8 0  .9 1 Miles Produced

September

20,

1999 By

SITEPLUS

(

Req

s62229) U.

S.

Environmental

Protection

Agency Identification Landfill Construction and Controls LandfilledWaste Leachate Quantity Name:

Winnebago County Sunnyview Landfill Address:

100West County Road Y Oshkosh,

WI 54901 Owner:

Winnebago County Ownership status:

Municipal Facility contact:

Henry Sommer,

Superintendent,

414

424

0793 State license no.:

03175 Landfill types:

Municipal SolidWaste (

MSW)

and Industrial (

Paper mill sludge) Permitting status:

Active Type of LCS:

Standard Number of phases:

MSW/

sludge landfill   Six (

1   6) Sludge landfill   Four (

A   D) Status:

Phases 1   4 (

MSW/

sludge)

and A   D (

sludge)

are active Liner type:

Double

lined;

5 feet and 3 feet of clay with a granular drainage blanket between the two liners Operational period:

January 1989 to present Proposed year of closure:

2010 Waste acceptance:

MSW/

sludge landfill   municipal,

commercial,

and industrial solid waste Sludge landfill   pulp/

paper mill sludge Overall location area:

213 acres Permitted area:

MSW/

sludge landfill   74 acres Sludge landfill   28 acres Cell dimensions:

MSW/

sludge landfill   400 feet wide by 1,100 feet long Sludge landfill   200 feet wide by 800 feet long Total permitted capacity:

MSW/

sludge landfill   7,783,500 yd ³ Sludge landfill   1,260,100 yd ³ Underlying geology/

soil type:

Surface soils are silty clay to clay underlain by dolomite bedrock Nature of waste:

Municipal,

commercial,

and industrial solid waste including:

garbage,

refuse,

combustible and noncombustible demolition wastes,

brush,

trees and pulp/

paper mill sludge Total cumulative quantity landfilled:

2,037,153 tons (

as of January 1997) Average annual quantity:

226,400 tons Total cumulative volume landfilled:

3,287,010 yd ³ (

as of January 1997) Average annual volume:

365,200 yd ³ Liquid to solid ratio:

0.029 L/

kg Average annual leachate generation:

16,484,000 gallons Average annual precipitation:

29.5 inches Exhibit 2.

Waste Data* MSW Pulp/

paper mill sludge 1,315,170 721,983 2,630,340 656,670 Wastes Type Cumulative Quantity (

tons)

Cumulative Volume (

yd ) 3 *

As of January 1997 Phase Status Liner Design Capacity (

yd ) 3 1   4 Active 5 feet of clay overlain by a drainage blanket and 3 feet of clay Exhibit 1.

Landfill Construction and Controls 5   6 A   D Landfill Type MSW/

sludge Sludge Constructed Active 6,276,716 (

MSW) 641,937 (

sludge) 1,260,100 Leachate Quality Exhibit 3.

Leachate Composition Data PARAMETER Concentration (

ug/

l) OBS 10th 50th 95th MAX %

Detect PHYSICAL/

CHEMICAL PROPERTIES Alkalinity (

mg/

l as CaCO3)

153 305 775 5018.4 8020 100% BOD (

mg/

l)

335 0 106 8047.5 22650 68% Chloride (

mg/

l)

154 19 57.5 903.6 1260 100% COD (

mg/

l)

262 0 24 5024.6 25402 69% Hardness (

mg/

l as CaCO3)

155 457.2 1200 4683.9 9400 100% Nitrite plus Nitrate (

mg/

l)

103 0 1 8.69 14 83% Nitrogen,

Ammonia (

mg/

l)

109 0 0.14 265.6 333 67% Nitrogen,

Kjeldahl (

mg/

l)

103 0.262 0.94 327 400 90% pH (

su)

339 6.3 6.9 8 8.7 100% Specific Conductance (

umho/

cm)

337 700 1740 7642 12000 100% Sulfate (

mg/

l)

154 3.13 150.5 1075 3400 92% Sulfite (

mg/

l)

10 0 0 1 1 20% TSS (

mg/

l)

336 7 55 329.25 716 96% TRACE ELEMENTS Metal Arsenic 16 0 16.5 167 500 69% Barium 16 100 480 1400 1700 88% Cadmium 20 0 0 11.25 16 20% Chromium 16 0 0 74.75 89 13% Copper 16 0 15 112.25 149 75% Cyanide (

mg/

l)

16 0 0.0055 0.067 0.067 56% Iron (

mg/

l)

131 0.21 10 201.5 322 99% Lead 20 0 0 7.65 115 15% Manganese 131 0.04 225 2760 6800 91% Mercury 20 0 0 0.405 0.5 20% Nickel 16 0 57 280 310 75% Phosphorus (

mg/

l)

235 0.04 1.1 2.43 15 95% Potassium (

mg/

l)

16 34.5 98 187.25 239 100% Selenium 16 0 0 9.235 34 13% Sodium (

mg/

l)

105 15 51 998.4 58000 100% Zinc 16 0 52.5 1042.5 1440 75% Organics 1,1,1

Trichloroethane 32 0 0 0.5835 21.2 9% 1,1

Dichloroethane 32 0 0 3.965 6.4 13% 1,2,4

Trimethylbenzene 10 0 0.425 19.2 21 50% 1,2

Dichloroethane 32 0 0 0 0.42 3% 1,3,5

Trimethylbenzene 10 0 0 8.13 8.4 30% 2,4

Dimethylphenol 6 0 0 10.5 14 17% 2

Methylnaphthalene 6 0 0 8.375 9.5 33% Acetone 12 0 0 123.3 274 8%

Anthracene 6 0 0 1.5 2 17% Benzene 32 0 0 5.665 11 19% Benzoic Acid 6 0 139 1155 1400 67% Bis(

2

ethylhexyl)

Phthalate (

Dehp)

6 0 0 17.25 23 17% Butylbenzene,

n

10 0 0 1.9885 3.1 20% Carbon Disulfide 12 0 0 10.35 23 8% Chlorobenzene 32 0 0 0.54 1.9 6% Chloroethane 32 0 0 4.685 12 9% Chloroform 32 0 0 0.72 83.4 6% Chloromethane 32 0 0 0 4.7 3% cis

1,2

Dichloroethene 30 0 0 0.936 1.1 13% Cresols 4 306 845 1332.5 1400 100% Dichlorodifluoromethane 24 0 0 14.45 18.4 8% Dichloromethane 32 0 0 4.6 9.8 13% Diethyl Phthalate 6 0 2.85 78.75 100 50% Di

n

butyl Phthalate 6 0 0 5.1 6.8 17% Endosulfan Sulfate 4 0 0.0065 0.03425 0.038 50% Endrin 4 0 0.00465 0.00981 0.0099 50% Ethylbenzene 32 0 0 35.55 56 22% Heptachlor 4 0 0 0.007735 0.0091 25% Isophorone 6 0 0 5.925 7.9 17% Isopropylbenzene 10 0 0 4.565 4.7 30% m

cresol (

3

methylphenol)

2 188 224 264.5 269 100% Methyl Tert

butyl Ether (

mtbe)

26 0 0 1.725 3 8% m

xylene 2 0.34 1.7 3.23 3.4 50% Naphthalene 30 0 0 56.15 69 27% n

propylbenzene 10 0 0 3.015 3.6 30% o

cresol (

2

methylphenol)

2 0.72 3.6 6.84 7.2 50% o

dichlorobenzene 32 0 0 0 0.3 3% o

xylene 2 0.18 0.9 1.71 1.8 50% p

dichlorobenzene 32 0 0 10.9 42 13% Phenanthrene 6 0 0 6 8 17% Phenol 6 0 0 129.225 170 33% Phenolics 101 0 0.021 219 686 61% p

isopropyltoluene 10 0 1.8 9.84 12 50% Styrene 26 0 0 0 0.8 4% Tetrahydrofuran 12 0 0 750.1 771 33% Toluene 32 0 0 80.4 300 41% Trichloroethylene (

tce)

32 0 0 169.75 508 13% Vinyl Chloride 32 0 0 1.725 5.9 13% Xylenes 26 0 0 113.5 130 27% Data Source Wisconsin Department of Natural Resources File review conducted by SAIC (

September 1999) LANDFILL CASE 19:

SUPERIOR MUNICIPAL LANDFILL 2

Mile

Radius 1

Mile

Radius Superior

Landfill Lat:

32.02723

Long:

81.26884 Chatham

County,

GA. This

computer

representation

has

been

compiled

by

the

U.

S. Environmental

Protection

Agency

(

EPA)

from

sources

which

have supplied

data

or

information

that

has

not

been

verified

by

the the

EPA.

This

data

is

offered

here

as

a

general

representation only,

and

is

not

to

be

used

for

commercial

purposes

without verification

by

an

independant

professional

qualified

to

verify such

data

or

information.

The

EPA

does

not

guarantee

the accuracy,

completeness,

or

timeliness

of

the

information

shown, and

shall

not

be

liable

for

any

loss

or

injury

resulting

from reliance

upon

the

information

shown. Albers

Projection LEGEND Basin

Boundary USGS

Catalog

Unit County

Boundary 1990

Population

Density

Per

Sq

Mi Under

10 10

100 100

1,000 1,000

3,000 3  ,000

6,000 6  ,000

10,000 10,000

20,000 O  ver

20,000 0  0  .1 0  .2 0  .3 0  .4 0  .5 0  .6 0  .7 0  .8 0  .9 1 Miles Produced

September

21,

1999 By

SITEPLUS

(

Req

s61854) U.

S.

Environmental

Protection

Agency Identification Landfill Construction and Controls LandfilledWaste Leachate Quantity Name:

Superior Landfill Address:

3001 Little Neck Road Savannah,

GA 31419 Tel:

912

927

6113 Owner/

Operator:

Superior (

aWaste Management Company since 1991) Ownership status:

Commercial Facility contact:

Mike Cooper,

912

927

6113 State agency contact:

Harold Gillespie, GA Environmental Protection Division, 404

362

2692 EPA ID:

GA0001896810 State permit no.:

025

070D Landfill type:

Municipal SolidWaste (

MSW) Permitting status:

Active Type of LCS:

Sump/

riser Number of cells:

8 (

upon completion) Status:

Only 1 active cell Liner type:

Clay and synthetic liners (

geonet also) Cover type:

6 inch daily cover Operational period:

March 1994 to present Waste acceptance:

Accepts residential,

commercial,

and industrial waste such as contaminated soils and process wastes,

asbestos,

POTW sludges,

and municipal incinerator ash Overall location area:

742 acres Permitted area:

90 acres Underlying geology/

soil type:

Tight,

fine sand underlain with an 8   14 inch marine clay layer Special practices:

Currently vertically expanding an unlined 26

acre cell. Nature of waste:

Residential or commercial (

75   80%),

industrial waste (

20   25%) Average annual quantity landfilled:

Unknown Total cumulative quantity landfilled:

147,000 tons (

March   October 1994) Liquid to solid ratio:

0.027 L/

kg Annual leachate generation:

1,014,500 gallons (

only 8 months of leachate collection) Average annual precipitation:

50.7 inches Leachate Quality Exhibit 1.

Leachate Composition Data PARAMETER Concentration (

ug/

l) OBS 10th 50th 90th MAX PHYSICAL/

CHEMICAL PROPERTIES BOD 6 1090.00 1135.00 1340.00 1340.00 COD 6 1450.00 1520.00 1600.00 1600.00 TDS 6 2400.00 2420.00 2590.00 2590.00 pH 6 6.92 7.00 7.04 7.04 Nitrate/

Nitrite 6 1.07 1.15 2.02 2.02 Total Organic Carbon (

TOC)

6 584.00 674.00 692.00 692.00 Total Phenols 6 1230.00 1265.00 1310.00 1310.00 Total Phosphorous 6 0.02 0.02 0.03 0.03 Total Sulfide (

Iodometric)

6 7.80 10.65 16.00 16.00 Total Suspended Solids 6 27.00 203.00 223.00 223.00 TRACE ELEMENTS Metals Aluminum 6 55.70 74.10 92.50 92.50 Arsenic 6 13.60 16.60 16.80 16.80 Barium 4 0.20 0.30 0.33 0.33 Boron 6 1760.00 1790.00 1860.00 1860.00 Cadmium 6 4.10 4.10 4.10 4.10 Calcium 6 330000.00 333000.00 352000.00 352000.00 Chloride 6 264.00 277.50 283.00 283.00 Hexavalent chromium 6 0.04 0.04 0.06 0.06 Fluoride 6 0.13 0.40 0.45 0.45 Iron 6 90600.00 93550.00 97700.00 97700.00 Lead 6 78.80 114.40 150.00 150.00 Magnesium 6 89200.00 90550.00 94500.00 94500.00 Manganese 6 4580.00 4615.00 4900.00 4900.00 Nickel 6 15.00 17.20 18.10 18.10 Potassium 6 73000.00 75300.00 76300.00 76300.00 Silicon 6 4280.00 4300.00 4430.00 4430.00 Sodium 6 261000.00 264500.00 275000.00 275000.00 Strontium 6 1370.00 1395.00 1440.00 1440.00 Sulfur 6 3630.00 4005.00 4470.00 4470.00 Yttrium 6 2.50 2.80 4.50 4.50 Zinc 6 10.20 13.10 19.60 19.60 Organics Acetophenone 6 10.64 10.64 10.64 10.64 Alachlor 4 0.25 0.25 0.25 0.25 Alpha

Terpinol 6 43.16 44.36 47.20 47.20 Ammonia as Nitrogen 6 15.40 69.00 73.00 73.00 Benzoic Acid 6 6957.72 7411.37 8903.46 8903.46 Chlorothalonil 4 0.28 0.28 0.28 0.28 Diallate A 4 2.16 4.56 6.95 6.95 Diallate B 4 40.50 40.50 40.50 40.50 Diethyl ether 6 84.759 89.643 98.142 98.142 Dioxathion 4 35.00 35.00 35.00 35.00 Diphenyldisulfide 4 14.00 14.50 46.00 46.00 Disulfoton 4 14.00 14.50 46.00 46.00 Ethylbenzene 6 30.748 32.997 34.509 34.509 Gamma

BHC 4 0.19 0.25 0.33 0.33 Hexamethylphosporamide 4 7.06 7.14 7.40 7.40 Hexane extractable material 4 5.00 5.50 6.00 6.00 Hexanoic acid 6 4939.19 5842.33 6963.05 6963.05 MCPA 4 58.00 79.60 328.00 328.00 MCPP 4 73.00 243.50 933.00 933.00 Naled 4 8.00 8.00 8.00 8.00 p

Cresol 6 677.59 767.40 935.41 935.41 Phenol 6 426.10 578.03 1228.84 1228.84 Phosphamidon E 4 5.00 5.50 6.00 6.00 Propachlor 4 0.70 0.81 1.48 1.48 Terbuthylazine 7 10.10 11.30 12.50 12.50 Toluene 6 361.35 382.26 385.16 385.16 Trichlorofluoromethane 6 3182.72 3182.72 3182.72 3182.72 Tripropyleneglycol methyl ether 6 1138.16 1177.10 1328.03 1328.03 Vinyl chloride 6 15.12 19.08 21.36 21.36 1,2

Dibromo

3 chloropropane 10 0.22 0.22 0.22 0.22 1,4

Dioxane 6 10.67 12.06 13.45 13.45 2

Butanone 6 2792.24 3325.35 3597.29 3597.29 2

Propanone 6 968.99 1592.17 2223.35 2223.35 2,4

D 4 1.90 12.65 23.40 23.40 2,4

DB 4 5.00 9.10 14.20 14.20 2,4,5

T 4 0.30 0.60 0.80 0.80 2,4,5

TP 4 0.30 11.50 40.10 40.10 4

Chloro

3

Methylphenol 6 188.22 188.22 188.22 188.22 4

4

Methyl

2

pentanone 6 321.885 396.312 429.714 429.714 Data Source Effluent Guidelines for Landfill Point Source Category:

Superior Sampling Event,

May 25,

1995. LANDFILL CASE 20:

NORTHWOODS SANITARY LANDFILL 2

Mile

Radius 1

Mile

Radius Northwoods

Sanitary Lat:

45.4514

Long:

91.6433 Barron

County,

WI. This

computer

representation

has

been

compiled

by

the

U.

S. Environmental

Protection

Agency

(

EPA)

from

sources

which

have supplied

data

or

information

that

has

not

been

verified

by

the the

EPA.

This

data

is

offered

here

as

a

general

representation only,

and

is

not

to

be

used

for

commercial

purposes

without verification

by

an

independant

professional

qualified

to

verify such

data

or

information.

The

EPA

does

not

guarantee

the accuracy,

completeness,

or

timeliness

of

the

information

shown, and

shall

not

be

liable

for

any

loss

or

injury

resulting

from reliance

upon

the

information

shown. Albers

Projection LEGEND Basin

Boundary USGS

Catalog

Unit County

Boundary 1990

Population

Density

Per

Sq

Mi Under

10 10

100 100

1,000 1,000

3,000 3  ,000

6,000 6  ,000

10,000 10,000

20,000 O  ver

20,000 0  0  .1 0  .2 0  .3 0  .4 0  .5 0  .6 0  .7 0  .8 0  .9 1 Miles Produced

September

28,

1999 By

SITEPLUS

(

Req

s51856) U.

S.

Environmental

Protection

Agency Identification Landfill Construction and Controls LandfilledWaste Leachate Quantity Name:

Northwoods Sanitary Landfill Address:

1750 24th Street Rice Lake,

WI 54686

8735 Owner:

Northwoods Ownership status:

Commercial Facility contact:

Gregory Snider,

President,

715

458

4565 State license no.:

03212 Landfill type:

Municipal SolidWaste (

MSW) Permitting status:

Active Type of LCS:

Standard with 1

foot drainage blanket Number of phases:

Three (

3) Status:

Phase 1 and 2 active Liner type:

5 feet of clay and 60 mil HDPE geomembrane Estimated year of closure:

2011 (

as of January 1997) Operational period:

October 1993 to present Waste acceptance:

Municipal solid waste Permitted area:

10.5 acres Total permitted capacity:

500,000 yd ³ Underlying geology/

soil type:

Sandstone/

quartzite bedrock overlain by loam Depth to aquifer:

40   200 feet Nature of waste:

Municipal solid waste Total cumulative quantity landfilled:

29,010 tons (

as of January 1997) Total cumulative volume landfilled:

136,521 yd ³ (

as of January 1997) Liquid to solid ratio: Average annual leachate generation:

1,300,000 gallons Average annual precipitation:

32.2 inches Exhibit 2.

Leachate Volume Data Year 1995 1994 1996 1997 1998* Volume (

gallons)

1,298,900 1,231,200 1,320,900 N/

A 698,600 Year Wastes Type Quantity (

tons)

Volume (

yd ) 3 Exhibit 1.

Waste Data MSW 0.25 4,151 13,737 1.17 19,534 64,646 1994 1995 1996 MSW MSW MSW 11,122 52,340 1993* *

Began operations in October of 1993 *

Quantities for January through June only. Leachate Quality Exhibit 3.

Leachate Composition Data Concentration (

ug/

l) PARAMETER OBS 10th 50th 95th MAX %

Detect PHYSICAL/

CHEMICAL PROPERTIES Alkalinity (

mg/

l as CaCO3)

11 1400 2520 4406.5 4463 100% BOD (

mg/

l)

42 370.8 2165 6181.5 8580 100% Chloride (

mg/

l)

11 379 773 1185 1220 100% COD (

mg/

l)

11 1400 7600 13750 13800 100% Hardness (

mg/

l as CaCO3)

11 1700 2330 3475 3890 100% Nitrogen,

Ammonia (

mg/

l)

11 99 263 375 398 100% Nitrogen,

Kjeldahl (

mg/

l)

3 264.2 325 328.6 329 100% pH (

su)

45 6.572 7.2 7.68 9.91 100% Specific Conductance (

umho/

cm)

10 3670 6284 10235 11000 100% Sulfate (

mg/

l)

3 108.8 144 183.6 188 100% TSS (

mg/

l)

45 171.4 324 543.2 636 100% TRACE ELEMENTS Metals Benzene 2 6.13 6.25 6.385 6.4 100% Cadmium 3 0 0 1.26 1.4 33% Iron (

mg/

l)

11 75.2 268 350.5 387 100% Manganese 3 6.832 11.2 2818.12 3130 100% Mercury 3 0 0 0.0027 0.003 33% Phosphorus (

mg/

l)

8 1.01 2.05 4.495 5.3 100% Sodium (

mg/

l)

3 769.2 770 779.9 781 100% Organics 1,1

Dichloroethane 2 7.83 12.35 17.435 18 100% 1,2,4

Trimethylbenzene 2 13.4 15 16.8 17 100% 1,3,5

Trimethylbenzene 2 0.73 3.65 6.935 7.3 50% cis

1,2

dichloroethene 1 38 38 38 38 100% Ethylbenzene 2 58.1 62.5 67.45 68 100% m,

p

xylene 2 131 135 139.5 140 100% Methyl Tert

butyl Ether (

MTBE)

2 0.97 4.85 9.215 9.7 50% o

xylene 2 49.1 49.5 49.95 50 100% Toluene 2 292 460 649 670 100% Vinyl Chloride 2 0.97 4.85 9.215 9.7 50% Data Source Wisconsin Department of Natural Resources File review conducted by SAIC (

September 1999) LANDFILL CASE 21:

VERNON COUNTY MUNICIPAL LANDFILL 2

Mile

Radius 1

Mile

Radius Vernon

County

Landfill Lat:

43.519727

Long:

90.908213 Vernon

County,

WI. This

computer

representation

has

been

compiled

by

the

U.

S. Environmental

Protection

Agency

(

EPA)

from

sources

which

have supplied

data

or

information

that

has

not

been

verified

by

the the

EPA.

This

data

is

offered

here

as

a

general

representation only,

and

is

not

to

be

used

for

commercial

purposes

without verification

by

an

independant

professional

qualified

to

verify such

data

or

information.

The

EPA

does

not

guarantee

the accuracy,

completeness,

or

timeliness

of

the

information

shown, and

shall

not

be

liable

for

any

loss

or

injury

resulting

from reliance

upon

the

information

shown. Albers

Projection LEGEND Basin

Boundary USGS

Catalog

Unit County

Boundary 1990

Population

Density

Per

Sq

Mi Under

10 10

100 100

1,000 1,000

3,000 3  ,000

6,000 6  ,000

10,000 10,000

20,000 O  ver

20,000 0  0  .1 0  .2 0  .3 0  .4 0  .5 0  .6 0  .7 0  .8 0  .9 1 Miles Produced

September

20,

1999 By

SITEPLUS

(

Req

s59502) U.

S.

Environmental

Protection

Agency Identification Landfill Construction and Controls LandfilledWaste Leachate Quantity Name:

Vernon County Municipal Landfill Address:

Route 3 Box 247B Viroqua,

WI 54665 Owner:

Vernon County Ownership status:

Municipal Facility contact:

George Nettum,

Chairman,

608

634

2900 State license no.:

03268 Landfill type:

Municipal SolidWaste (

MSW) Permitting status:

Active Type of LCS:

Standard with 1

foot sand drainage layer Number of phases:

3 Phases composed of 9 modules Status:

Phase 1 (

modules 1 and 2)

  active Phase 2 (

module 1)

  active Liner type:

Composite (

5 feet compacted clay and 60 mil HDPE geomembrane) Operational period:

October 1993 to present Waste acceptance:

Residential,

commercial,

non

hazardous industrial wastes from Vernon County Overall location area:

158 acres Permitted area:

10 acres Max waste depth:

25 feet Total permitted capacity:

314,942 yd ³ (

283,448 yd ³ of waste) Underlying geology/

soil type:

Silty,

well

drained loess underlain by clays,

pebbles and dolomite bedrock Depth to aquifer:

180 feet Nature of waste:

Garbage,

refuse,

animal carcasses,

asbestos,

and demolition Total cumulative quantity landfilled:

25,804 tons Total cumulative volume landfilled:

50,825 yd ³ Liquid to solid ratio:

0.027 L/

kg Average leachate generation:

186,176 gallons Average annual precipitation:

32.5 inches Phase Status Operational Period EstimatedWaste Capacity (

yd ) 3 1 Active Active Exhibit 1.

Landfill Construction and Controls 2 3 October 1993 to present Early 1996 to present Late 1998 to present Proposed Proposed Modules 1 2 1 2   3 1   4 32,376 33,699 25,272 56,870 135,231 Exhibit 2.

Waste Data Petro contaminated soil 783 783 Year Waste Type Quantity (

tons)

Volume (

yd ) 3 MSW 2,368 7,852 7,366 4,736 15,704 14,732 1994 1995 1996 7,435 14,870 1993 Leachate Quality Exhibit 3.

Leachate Composition Data PARAMETER Concentration (

ug/

l) OBS 10th 50th 95th MAX %

Detect PHYSICAL/

CHEMICAL PROPERTIES Alkalinity (

mg/

l as CaCO3)

7 800 1300 3230 3500 100% BOD (

mg/

l)

26 2.5 55 745 940 92% Chloride (

mg/

l)

8 226.2 861 2422.5 3000 100% COD (

mg/

l)

9 127.94 850 1447.2 1500 100% Hardness (

mg/

l as CaCO3)

8 658 865 2530 3300 100% Nitrite plus Nitrate (

mg/

l)

5 0 0 31.868 39.7 40% pH (

su)

24 6.693 7.425 8.2325 8.96 100% Specific Conductance (

umho/

cm)

23 338.8 1515.67 8548 8731 100% Sulfate (

mg/

l)

5 3.6 24.5 287.2 349 80% TSS (

mg/

l)

28 10.8 59.5 530.6 7400 96% TRACE ELEMENTS Metals Antimony 5 0 3.6 6.82 7.2 60% Arsenic 5 15.04 22 56.6 58 100% Barium 5 626 910 1596 1670 100% Beryllium 5 0 0 3.2 4 20% Cadmium 5 0 0 2 2.5 20% Chromium 5 10.006 63 299 350 100% Cobalt 5 0 0 38.29 46 40% Copper 5 0 0 15 16 40% Fluoride (

mg/

l)

4 0.003 1.545 18.533 21.26 75% Iron (

mg/

l)

8 3.42 19 65.325 65.5 100% Lead 4 0.508 3.845 11.25 12 100% Manganese 4 1118 3650 29950 34300 100% Mercury 5 0 0 3.2 4 20% Nickel 4 16.2 59.5 128.75 140 75% Phosphorus (

mg/

l)

26 0.0935 0.4635 4.5 5.8 96% Selenium 4 3.6 13 19.1 20 75% Silver 4 0 0 1.955 2.3 25% Sodium (

mg/

l)

4 303.82 260410 562500 570000 100% Vanadium 4 0 7 27.6 30 50% Zinc 4 60.94 97.9 142.5 150 100% Organics 1,1,1

Trichloroethane 5 0 0 2.08 2.6 20% 1,1

Dichloroethane 5 0 0 113.2 141 40% 1,2,4

Trimethylbenzene 5 0 0 2.44 2.7 40%

1,2

Dichloroethane 5 0 0 0.4 0.5 20% 1,3,5

Trimethylbenzene 5 0 0 0.9 1 40% Benzene 5 0 0 4.9 6 40% Chloroethane 5 0 0 2.48 3.1 20% Chloromethane 5 0 0 6.24 7.6 40% cis

1,2

dichloroethene 5 0 0 4.56 5.7 20% Ethylbenzene 5 0.6 3.4 5.72 6.1 80% Isopropylbenzene 5 0 0 1.62 2 40% m,

p

xylene 5 0 1.3 7.82 8.9 60% Methyl Tert

butyl Ether (

MTBE)

5 0 0 2.78 3.2 40% Naphthalene 5 0 1.7 1.9 1.9 60% o

xylene 5 0.32 1.8 4.64 5.2 80% p

dichlorobenzene 5 0.08 1.2 7.04 8.1 80% p

isopropyltoluene 5 0 0 2.14 2.6 40% Styrene 5 0 0 4.24 5.3 20% Toluene 5 0.08 4 69.94 70 80% Data Source Wisconsin Department of Natural Resources File review conducted by SAIC (

September 1999) LANDFILL CASE 22:

TANGIPAHOA PARISH MUNICIPAL LANDFILL 2

Mile

Radius 1

Mile

Radius Tangipahoa

Regional

Solid

Waste

Facility Lat:

30.7003

Long:

90.575 S  t.

Helena

County,

LA. This

computer

representation

has

been

compiled

by

the

U.

S. Environmental

Protection

Agency

(

EPA)

from

sources

which

have supplied

data

or

information

that

has

not

been

verified

by

the the

EPA.

This

data

is

offered

here

as

a

general

representation only,

and

is

not

to

be

used

for

commercial

purposes

without verification

by

an

independant

professional

qualified

to

verify such

data

or

information.

The

EPA

does

not

guarantee

the accuracy,

completeness,

or

timeliness

of

the

information

shown, and

shall

not

be

liable

for

any

loss

or

injury

resulting

from reliance

upon

the

information

shown. Albers

Projection LEGEND Basin

Boundary USGS

Catalog

Unit County

Boundary 1990

Population

Density

Per

Sq

Mi Under

10 10

100 100

1,000 1,000

3,000 3  ,000

6,000 6  ,000

10,000 10,000

20,000 O  ver

20,000 0  0  .1 0  .2 0  .3 0  .4 0  .5 0  .6 0  .7 0  .8 0  .9 1 Miles Produced

September

28,

1999 By

SITEPLUS

(

Req

s53978) U.

S.

Environmental

Protection

Agency Identification Landfill Construction and Controls LandfilledWaste Leachate Quantity Name:

Tangipahoa Parish Landfill Address:

57510 Hano Road Independence,

LA 70443 Owner:

Tangipahoa Parish Council Ownership status:

Municipal Facility contact:

Buddy Till,

Landfill Manager,

504

878

6332 Charles Hedges,

Consultant (

Delta Engineers) NPDES ID:

LA0078921 State permitnNo.:

P

0127 Landfill type:

Municipal SolidWaste (

MSW) Permitting status:

Active Type of LCS:

Standard Number of cells:

Five (

5) Status:

Cell 4 is active Liner type:

3

feet of compacted clay (

cells 1   4) Final cover type:

2

feet of compacted clay (

temporary site and cells 1   3) Operational period:

1981 to present Waste acceptance:

Accepts only non

hazardous municipal solid waste and limited amounts of construction &

demolition (

C&

D)

debris Overall location area:

100 acres Permitted area:

44 acres Cell dimensions:

500 ft long by 700 ft wide by 40 ft deep (

cell 4) Run

on/

off controls:

Run

on control,

run

off control (

designed for 25

yr,

24

hr storm event) Underlying geology/

soil type:

Impervious clay Depth to aquifer:

3 feet Nature of waste:

Municipal or commercial non

hazardous solid waste (

70%),

yard wastes (

15%),

agricultural waste (

other than pesticides)

(

10%),

C&

D debris (

3%)

and sewage sludge (

2%) Average annual quantity landfilled:

45,760 tons Total cumulative quantity landfilled:

569,264 tons Liquid to solid ratio:

0.007 L/

kg Average annual quantity generated:

1,092,000 gallons Average annual precipitation:

66 inches Exhibit 1.

Landfill Construction and Controls Phase Status Liner Operational Period Final Cover Temporary site Closed Naturally occurring clay base 1 2 3 4 Active 3 feet of compacted clay 1981 to 1984 1984 to 1986 1986 to 1988 1989 to 1993 1993 to present 2 feet of compacted clay N/

A Leachate Quality Exhibit 2.

Leachate Composition Data PARAMETER Concentration (

ug/

l) OBS 10th 50th 90th MAX PHYSICAL/

CHEMICAL PROPERTIES BOD 2 131.4 153 174.6 180 COD 2 1109 1545 1981 2090 TDS 1 5400 5400 5400 5400 pH (

su)

2 7 7 7 7 Nitrate/

Nitrite 2 1 1 1 1 Total Phenols 2 127.6 146 164.4 169 Total Phosphorus 2 5.3 6.5 7.7 8 Total Sulfide (

Iodometric)

1 76 76 76 76 TOC 2 168.8 208 247.2 257 TSS 2 5806 14470 23134 25300 TRACE ELEMENTS Metals Aluminum 2 50380 111100 171820 187000 Arsenic 2 9.5 19.1 28.7 31.1 Barium 2 1208 1760 2312 2450 Beryllium 2 1.79 4.15 6.51 7.1 Boron 2 2550 3910 5270 5610 Cadmium 1 18.1 18.1 18.1 18.1 Calcium 2 142500 184500 226500 237000 Cerium 1 1900 1900 1900 1900 Chloride 2 398.4 728 1057.6 1140 Chromium 2 98.36 210.2 322.04 350 Cobalt 2 49.7 50.9 52.1 52.4 Copper 2 67.7 138.5 209.3 227 Fluoride 2 1.1 1.5 1.9 2 Iron 2 100980 184100 267220 288000 Lanthanum 1 681 681 681 681 Lead 2 90.06 216.7 343.34 375 Magnesium 2 83990 99550 115110 119000 Manganese 2 2036 3620 5204 5600 Mercury 2 0.391 0.955 1.519 1.66 Neodymium 1 937 937 937 937 Nickel 2 103.92 148.4 192.88 204 Phosphorus 2 125400 223000 320600 345000 Silicon 2 63180 91100 119020 126000 Sodium 2 458500 792500 1126500 1210000 Strontium 2 736.6 787 837.4 850 Sulfur 2 11583 19635 27687 29700 Vanadium 2 174.4 476 777.6 853 Yttrium 3 106.68 397 583.4 630 Titanium 2 80.35 91.75 103.15 106 Zinc 1 1360 1360 1360 1360 Zirconium 1 124 124 124 124 Organics Ammonia as Nitrogen 2 652 2900 5148 5710 Biphenyl 1 200 200 200 200 Disulfoton 1 14 14 14 14 Ethylbenzene 2 15.5705 16.8325 18.0945 18.41 Hexane extractable material 1 26 26 26 26 Hexanoic acid 1 20.834 20.834 20.834 20.834 MCPA 1 201 201 201 201 Methylene chloride 1 10.686 10.686 10.686 10.686 OCDD 2 1238.33 5576.85 9915.37 11000 p

cresol 2 22.4832 48.376 74.2688 80.742 Terbuthylazine 1 28.3 28.3 28.3 28.3 Toluene 2 37.5793 48.1845 58.7897 61.441 Tripropyleneglycol methyl ether 2 991.1637 1235.0985 1479.0333 1540.017 m

xylene 1 13.803 13.803 13.803 13.803 1234678

HPCDD 2 36.528 126.96 217.392 240 12 34678

HPCDF 1 56 56 56 56 123678

HXCDD 1 0.174 0.174 0.174 0.174 123789

HXCDD 1 0.464 0.464 0.464 0.464 2

Butanone 2 75.6861 90.9305 106.1749 109.986 2

Propanone 2 105.1182 109.859 114.5998 115.785 2,4,5

T 1 1.1 1.1 1.1 1.1 Data Source Effluent Guidelines for Landfill Point Source Category:

Tangipahoa Site Visit Report,

February 4,

1994. September 2000 5 1 Draft 5. BIBLIOGRAPHY Benefield, L. D.; J. F. Judkins; and B. Weand. Process Chemistry for Water and Wastewater Treatment. Prentice Hall, New Jersey, 1982.

Chian, E. and F. DeWalle. Evaluation of Leachate Treatment Volume I: Characterization of Leachate. U. S. Environmental Protection Agency, September 1977. EPA 600/ 2 77 186a.

Comans, N. J. and J. A. Meima. " Modelling Ca Solubility in MDWI Bottom Ash Leachates." Environmental Aspects of Construction with Waste Materials. Elsevier Science, 1994.

Conner, Jesse R.. Chemical Fixation and Solidification of Hazardous Wastes. Van Nostrand Reinhold, New York, 1990 Drever, James I. The Geochemistry of Natural Waters, Surface and Groundwater Environments. Prentice Hall, Inc., New Jersey, 1997.

Gibbons, Robert D.; David Dolan; Helen Keough; Kevin O'Leary; and Rich O'Hara. A Comparison of Chemical Constituents in Leachate from Industrial Hazardous Waste and Municipal Solid Waste Landfills. Presented at the Fifteenth Annual Madison Waste Conference, September 23 24, 1992. Department of Engineering Professional Development, University of Wisconsin  Madison.

de Groot, G. J, Wijkstra, J., Hoede, D., and van der Sloot, H. A. " Leaching Characteristics of Selected Elements as a Function of the Acidity of the Contact Solution and the Liquid/ Solid Ratio." Environmental Aspects of Construction with Waste Materials. Elsevier Science, 1994.

H. Ehrig. " Quality and Quantity of Sanitary Landfill Leachate." Waste Management and Research, 1, 53 68. 1983.

J. Frampton. Leaching Potential of Persistent and Bioaccumulative Toxic Substances in Municipal Solid Waste Landfills. California Environmental Protection Agency, 1998.

G. Farquhar. " Leachate: Production and Characterization." Canadian Journal of Civil Engineering, 16, 317 325. 1989.

Fergusson, J. E. Inorganic Chemistry and the Earth, Chemical Resources, Their Extraction, Use and Environmental Impact. Pergamon Press, New York, 1982.

Harris, Daniel C. Quantitative Chemical Analysis. W. H. Freeman and Co., New York, 1991. September 2000 5 2 Draft Huang, O'Melia, and Morgan. Aquatic Chemistry, Interfacial and Interspecies Processes. American Chemical Society, Washington, D. C., 1995.

ICF. Construction and Demolition Waste Landfills. Prepared for U. S. Environmental Protection Agency, Office of Solid Waste. February 1995 draft report. EPA 530 R 95 018; NTIS PB95 208906.

Pavelka, C.; R. C. Loehr; and B. Haikola. " Hazardous Waste Landfill Leachate Characteristics." Waste Management, 13( 8), 573 580. 1993.

Pohland, F. and S. Harper. Critical Review and Summary of Leachate and Gas Production from Landfills. U. S. Environmental Protection Agency, August 1986. EPA/ 600/ 2 86/ 073.

W. Ross. " Factors Influencing the Chemical Characteristics of Landfill Leachate." Water SA, 16( 4), 275. October 1990.

van der Sloot, H.; L. Heasman; and Ph. Quevauviller. Harmonization of Leaching/ Extraction Tests. Elsevier Science, 1997.

Stephenson, R. and J. Blackburn. The Industrial Wastewater Systems Handbook. Lewis Publishers, 1998.

Stumm, W. and J. Morgan. Aquatic Chemistry: An Introduction Emphasizing Chemical Equilibria in Natural Waters. 2nd Edition. John Wiley & Sons, 1981.

Svavarsson, G. and P. Fauble. Investigation of Groundwater Impacts at Construction and Demolition Waste Landfills. Presented at the 17th International Madison Waste Conference, September 21 to 22, 1994, Department of Engineering Professional Development, University of Wisconsin Madison.

Townsend, T. Characterization of Leachate from Construction and Demolition Waste Landfills. Florida Center for Solid and Hazardous Waste Management, State University System of Florida, August 1998. Report No. 98 4.

Wark, K. and C. Warner. Air Pollution: Its Sources and Control. 2nd Edition. Harper & Row, 1981.

WMX. Construction and Demolition ( C & D) Landfill Leachate Characterization Study. December 1993. September 2000 5 3 Draft Additional Works for Further Study During review of literature for this report several authors cited reports that appeared to discuss critical issues in more detail. Such sources are listed below and represent literature that can be obtained and reviewed to better investigate these areas.

Baccini, P.; G. Henseler; R. Figi; and H. Belevi. " Water and Element Balances of Municipal Solid Waste Landfills." Waste Management and Research, 5, 483 499. 1987.

Ehrig, H.. Microbial Decomposition in Sanitary Landfills with Different Conditions of Operation. EAS 81   5th Eurpoean Sewage and Refuse Symposium 22, 26 June 1981. ( Expected to discuss certain areas of MSW aging referenced in the 1983 work.)

Farquhar, et al. " Temporal Characterization of MSW Leachate." Canadian Journal of Civil Engineering, 19, 668 679. 1992. ( Expected to continue MSW aging research described in the 1989 work.)

Francis, A. J.; C. J. Dodge; and J. B. Gillow. Nature, 356, 140 142. 1992. ( Expected to discuss volatile fatty acids and their influence on contaminant leaching.)

Johannsen, Ole and Dale Carson. " Characterization of Sanitary Landfill Leachates." Water Research, 10, 1129 1134. 1976.

Hem, J. D. Study and Interpretation of the Chemical Characteristics of Natural Water. U. S. Geological Survey Water Supply Paper 2254. 1992. ( Expected to discuss speciation and solubility including for sulfides.)

McGinley, P. and P. Kmet. Formation, Characteristics, Treatment, and Disposal of Leachate from MSW Landfills. Bureau of Solid Waste Management, Wisconsin Department of Natural Resources, Madison, 1984. ( Expected to discuss volatile fatty acids and their influence on contaminant leaching.)

Wigh, Richard J. Comparison of Leachate Characteristics from Selected Municipal Solid Waste Test Cells." Project Summary. U. S. Environmental Protection Agency, September 1984. EPA 600/ S2 84 124. ( Expected to provide additional data regarding temporal variability of MSW leachate.) *

Comprehensive leachate data collection program September 2000 A

1 DRAFT APPENDIX A.

REVIEW OF STATE LANDFILL LEACHATE DATA AVAILABILITY State Facility Type Contact Data Quality Availability AK Hazardous and Non

Hazardous Heather Stockard Solid Waste Management Handful of LF's collect leachate.

Several pages of data in each quarterly monitoring reports FOIA AL Non

Hazardous Andy Baker DEM/

Land Division No reporting requirement Small amount of data for over 200 facilities On

site file review and copy Subtitle C Michael Champion DEM

Haz.

Waste Section No reporting requirement and very limited data for the only Subtitle C LF On

site file review and copy AR Hazardous and Non

Hazardous Rhonda Sharp Poll.

Control & Ecology/

Office of Pub. Affairs Data on file at office but no published reports or electronic formats,

~

50 LF's and 1 Subtitle C LF On

site file review and copy AZ Non

Hazardous (

no Subtitle C)

Technical Staff Solid Waste Section Limited monitoring data but not compiled 24 hour notice for file review CA Non

Hazardous Bart Simmons State requires leachate data from LF's To receive published data Subtitle C Bill Veile EPA/

Hazardous Waste State requires monthly leachate recovery reports On

site file review and copy CO Non

Hazardous Glenn Mallory Solid Waste Management Division State collects data on five LF's On

site file review and copy State Facility Type Contact Data Quality Availability *

Comprehensive leachate data collection program September 2000 A

2 DRAFT Subtitle C Tanell Roberts Haz.

Materials &

Waste Mgmt.

Division State does not collect leachate data N/

A CT Ash (

no Subtitle C)

John England DEP State requires quarterly reports for three ash LF's with data on file at office On

site file review and copy DE Non

Hazardous Dennis Murphy Solid Waste Branch Leachate data from five LF's in electronic format Data through Delaware Solid Waste Authority and need written request (

FOIA) Subtitle C Alex Ritberg Hazardous Waste Branch Collect data from one double

lined LF on bi

annual basis FOIA or side

step FOIA by copying thru EPA Region 3 FL Non

Hazardous (

no Subtitle C)

Lisa Martin DEP/

Bureau of Solid and Hazardous Waste State requires leachate reporting,

279 active nonhazardous LF's with 178 of this total being C&

D LF's To receive ~

10 mb of data in electronic format and 1 1993 report GA Non

Hazardous (

no Subtitle C)

Pete Dasher DNR/

Solid Waste Program Data on file for only a handful of the state's ~

100 LF's;

overall no reporting requirement On

site file review and copy Municipal Harold Gillespie DEP (

Land Protection)

Limited data (

only some groundwater data);

stated that the best source of data was the facility On

site file review at regional office HI Hazardous and Non

Hazardous George Tabil Office of Solid Waste Data submitted if specified in permit,

13 active and 15 closed LF's Contact each LF for data State Facility Type Contact Data Quality Availability *

Comprehensive leachate data collection program September 2000 A

3 DRAFT IA Non

Hazardous (

no Subtitle C)

Doc Holiday Leachate data available by permit number On

site file review and copy ID Hazardous and Non

Hazardous Phil Ferguson DEQ State collected limited leachate data FOIA IL Non

Hazardous Sar Rastaberg EPA/

Landfills Section Data collected by state but no published reports/

summaries or electronic formats,

database to be constructed within the year FOIA Subtitle C Sean Chisek EPA/

Haz.

Waste State does not require leachate monitoring until post

closure,

3 Subtitle C LF's Contact each LF for limited data IN Hazardous and Non

Hazardous Ghodrat Hiadari DNR/

Solid Waste Report leachate data quarterly or annually but not compiled,

do not require leachate characterization, ~

50 Non

Haz LF's and 1 closed Subtitle C On

site file review and copy KS Non

Hazardous (

no Subtitle C)

Joe Kronan DHE/

Bureau of Waste Mgmt.

Annual analysis reporting,

reports on file at office On

site file review and copy Call Phil Rosewicz for additional information KY Non

Hazardous (

No Subtitle C)

Mary Gowens DEP/

Division of Waste Management Require quarterly reports which include leachate volume and characterization data,

33 LF's Contact Maria Wood at (

502) 564

6716 ext.

210 for file review or On

site file review and copy *

LA Non

Hazardous Brett LeBlanc DEQ/

Solid Waste Division Require annual leachate data reports for 213 parameters,

currently only one report and no data in electronic format To receive LF report Copy additional data at office State Facility Type Contact Data Quality Availability *

Comprehensive leachate data collection program September 2000 A

4 DRAFT Subtitle C Narendra Dave DEQ/

Haz.

Waste Division Two active LF's required to report quarterly,

files contain large amount of data but no published reports or electronic formats On

site file review and copy MA Hazardous and Non

Hazardous Abdul Turray DEP Contact initiated C&

D Mark Haley DEP

Western Region Hardcopy files for each landfill within each region including limited waste and leachate quality On

site file,

however,

was able to fax limited data regarding one specific landfill MD Non

Hazardous Edward Dexter Department of Environment/

Solid Waste Require annual reporting of leachate volumes and characterization data for the 43 LF's,

files date back to early 1980'

s,

files are not organized Send written request to Public Information Acts Section (

FOIA) Subtitle C Amin Yazdanian Department of Environment/

Hazardous Waste Require semi

annual data reports,

no active and 2 closed LF's FOIA ME Hazardous and Non

Hazardous Bill Butler DEP Contact initiated *

MI Non

Hazardous Becky Kocsis DEQ/

Waste Management Quarterly reporting required, Districts (

10 total)

hold leachate data Send written requests (

and in some cases need FOIA)

to district offices

method varies from district to district State Facility Type Contact Data Quality Availability *

Comprehensive leachate data collection program September 2000 A

5 DRAFT *

Subtitle C Dee Montgomery DEQ/

Waste Management Annual reporting required since 1982,

data centralized and on file,

leachate data focuses on characterization,

wide range of facilities  petroleum,

chemical manufacturing,

auto, commercial On

site file review and copy *

MN Hazardous and Non

Hazardous Shelly Burman Pollution Control Agency/

Envi. Outcomes Leachate reporting data required containing constituent concentrations To receive leachate data in report format *

MO Non

Hazardous Tom Roscetti DEQ/

Solid Waste Mgmt. Program No longer require leachate data reports,

some of 43 LF's data on file at office On

site file review and copy Subtitle C Rob Morrison DEQ/

Haz. Waste Mgmt.

Program Require reporting from the only active LF,

also office has data for at least 2 more closed LF's,

data not compiled On

site file review and copy MS Hazardous and Non

Hazardous Milton Brumfield DEQ/

Off of Poll.

Control Leachate data (

volumes and constituents)

reported monthly if required by permit,

data entered into USEPA PCS database,

approximately 20 Subtitle D and 1 Subtitle C On

site file review and copy, Subtitle C data at LF MT Hazardous and Non

Hazardous Pat Crowley Office of Solid Waste Program Limited data because few LF's collect leachate data,

not published or electronic On

site file review and copy, soon to be compiled NE Non

Hazardous (

no Subtitle C)

Ralph Martin DEC/

Land Quality Div.

Volume and constituent data on file On

site file review and copy State Facility Type Contact Data Quality Availability *

Comprehensive leachate data collection program September 2000 A

6 DRAFT NV Munic.

Ed Wojcik Clark County Health District State has only one LF generating leachate (

Apex), Clark County collects leachate data on this LF,

data not compiled in report or electronic format Send written request to Records Office ($

0.60/

pg)

or call for file review appointment Subtitle C Greg Lovato DEP State collects data on the only HW LF (

US Ecology),

Quarterly reporting since 4/

97,

all leachate is F039,

on file at office On

site file review and copy or send written request *

NH Non

Hazardous (

no Subtitle C)

David Russo Solid Waste Section Leachate data required monthly from approximately eight LF's Contact Ariel Parent at (

603) 271

2900 in the Public Information Office for file review *

NJ Hazardous and Non

Hazardous Gary Torres Industrial Users Unit Elenaor Kurkoski LF Coord NP Source State has database of leachate data since 1993 of non

urban facilities,

not much QA/

QC documentation,

hard to link waste and leachate Have old data integrated in all NJPDES monitoring,

new data goes to POTW,

she will try and identify new cells for case study.

Alternatively contact Bureau of Permits Mgmt.

for archival data NM Non

Hazardous (

No Subtitle C)

Jerry Bober Environment Dept./

Solid Waste Bureau No data

reporting not required N/

A NY Hazardous and Non

Hazardous Robert Bhenof Contact initiated NC Contact initiated State Facility Type Contact Data Quality Availability *

Comprehensive leachate data collection program September 2000 A

7 DRAFT ND Hazardous and Non

Hazardous Kevin Solie Division of Waste Mgmt.

Some data with permit files Send letter requesting data to Division Director or copy at office *

OH Non

Hazardous Annette Dehavilland DEQ/

Solid &

Infectious Waste Division Require annual data,

setting up database in next few years,

no published data On

site file review and copy Subtitle C Shannon Neighbors DEQ/

Northwest District Office Office requires the only Subtitle D LF (

Envirosafe) in the state to report quarterly,

80 to 90%

K061 waste To receive data OK Hazardous and Non

Hazardous Don Barrett DEQ/

Waste Mgmt.

Div.

Only 1 Subtitle C LF in state,

require quarterly reporting of leachate data,

raw data including characterization and volumes on file at office,

no reporting requirement and limited data for 40+ nonhazardous LF's FOIA or file review at $

0.15/

pg OR Hazardous and Non

Hazardous Bruce Decelye Waste Mgmt. Division (

Salem Region)

Salem regional office collects substantial amounts of leachate data which is subsequently entered into USEPA Office of Water's STORET database (

probably groundwater,

not leachate,

data)

FOIA *

PA Hazardous and Non

Hazardous Terry Killian Land Recycling &

Waste Mgmt.

Chemical analysis data on file from ~

75 LF's, several Subtitle C LF's but no commercial facilities On

site file review and copy *

RI Non

Hazardous (

no Subtitle C)

Chris Schaffler Waste Management Data collected quarterly from six LF's,

one LF manages 80%

of state waste Contact Technical Assistance at (

401)

222

6822 for file review and send request in writing State Facility Type Contact Data Quality Availability *

Comprehensive leachate data collection program September 2000 A

8 DRAFT SC Hazardous and Non

Hazardous John Litton Dept.

of Health and Environmental Control 1 Subtitle C LF with limited leachate data SD Non

Hazardous (

no Subtitle C)

Rassool Ahadi Waste Mgmt. Program Data not collected by state Contact each facility for leachate data TN Contact initiated TX Non

Hazardous Arten Avakian TNRCC/

Municipal Solid Waste No reporting requirement and no central repository, limited data On

site file review and copy Subtitle C Terese Jimenez TNRCC/

Industrial & Haz.

Waste Data held by each LF group,

no centralized system and no published reports or databases On

site file review and copy UT Non

Hazardous Philip Burns Division of Solid &

Haz. Waste Limited data with only one LF (

Salt Lake County) analyzing leachate,

considered atypical leachate Contact Salt Lake County LF directly for leachate analysis Subtitle C Ed Costomiris Division of Solid &

Haz. Waste Limited data available but no reports or databases On

site file review and copy VT Contact initiated State Facility Type Contact Data Quality Availability *

Comprehensive leachate data collection program September 2000 A

9 DRAFT VA Subtitle D & monofills Hassan Vakili DEQ/

Waste Program No leachate sampling requirements for ~

80 LF's, no database or published reports Examine permit and then obtain data from regional offices C&

D Katherine Glass DEQ Roanoke Regional office No database exists;

only data required to report and available in permitting documents including: waste quantities and unit characteristics.

Little to no leachate quality data.

File review at regional office WA Hazardous and Non

Hazardous Kip Eagles Department of Ecology/

Solid Waste Office does not collect data,

County Health Departments collect non

hazardous LF data N/

A WV Non

Hazardous (

no Subtitle C)

Greg Rode Water Resources State does not collect leachate data,

limited data possibly included in USEPA's PCS database On

site file review and copy *

WI Hazardous and Non

Hazardous Jack Connelly DNR/

Waste Management Alt.

Diane Stocks Semi

annual reporting required,

very extensive database of leachate quality data from 1970'

s to present,

2 reports with leachate data To receive two reports containing leachate data, possible to query extensive database by site or leachate type but need written request WY Hazardous and Non

Hazardous Ken Schreuder Solid &

Haz.

Waste Division State currently has no leachate data N/

A September 2000 B 1 DRAFT 1 APPENDIX B. RELEVANT CONVERSION FACTORS Tons/ Cubic Yards Conversion Sheet* ( Wisconsin Department of Natural Resources permitting material)

1. Municipal solid waste As delivered Domestic 425 Commercial 375 Industrial 300 Bulky 400 Trees and brush 300 Demolition 1,250 Liquids 8.34 lbs/ gal Compacted in place 1,000 Facility receiving only demolition waste 1,400 2. Municipal wastewater sludge 8.34 lbs/ gal 3. Municipal incinerator ash As delivered  uncompacted 1,500 In field  compacted 2,700 4. Pulp and papermill sludge As delivered  uncompacted 1,800 In field  compacted 2,200 5. Utility ash  fly and bottom As delivered  uncompacted 2,200 In field  compacted 2,400 6. Foundry wastes As delivered  uncompacted 2,600 In field  compacted 3,000 * units are lbs./ cu yd unless otherwise noted September 2000 B 1 DRAFT 1 APPENDIX B. RELEVANT CONVERSION FACTORS Tons/ Cubic Yards Conversion Sheet* ( Wisconsin Department of Natural Resources permitting material)

1. Municipal solid waste As delivered Domestic 425 Commercial 375 Industrial 300 Bulky 400 Trees and brush 300 Demolition 1,250 Liquids 8.34 lbs/ gal Compacted in place 1,000 Facility receiving only demolition waste 1,400 2. Municipal wastewater sludge 8.34 lbs/ gal 3. Municipal incinerator ash As delivered  uncompacted 1,500 In field  compacted 2,700 4. Pulp and papermill sludge As delivered  uncompacted 1,800 In field  compacted 2,200 5. Utility ash  fly and bottom As delivered  uncompacted 2,200 In field  compacted 2,400 6. Foundry wastes As delivered  uncompacted 2,600 In field  compacted 3,000 * units are lbs./ cu yd unless otherwise noted September 2000 C 1 Draft APPENDIX C. L/ S RATIOS AND LEACHATE GENERATION RATES REPORTED IN LITERATURE Data summary: Readily available articles from the literature were searched to identify information regarding leachate generation rates from actual landfills. Typically, three pieces of data were required to calculate a L/ S ratio or a normalized leachate generation rate: ( 1) total quantity of leachate generated in a period of time ( e. g., annually), ( 2) landfill area, and ( 3) waste volume or average depth. Five articles were found with sufficient data to calculate one or more of these parameters. All focused on MSW landfills.

° Eighteen L/ S ratios from six references are available. The median of the reported values is approximately 0.03/ yr; the range is from 0.003 to 1.91/ yr.

° Eight normalized leachate generation rates from three data sources are also available. The median of these values is approximately 130 gal/ ac d; the range is 27 to 620 gal/ ac d.

These data serve as a way to compare the Office of Water data to " actual" cases. Additionally, they provide a way to identify trends in the data. Trends observed from these data sources are as follows:

° The highest L/ S ratios ( 0.5 to 2/ yr from Reference 1) are generated from relatively small quantities of waste, no more than 350 MT. In Reference 5, the highest L/ S ratio was also generated from the smallest landfill. Very high leachate generation rates would otherwise be required for large quantities of waste.

° Operational status was specified from only one data source ( Reference 2), which presented data on two closed landfills. The site with the synthetic cap generated less leachate than the site with only a clay cap ( 130 versus 210 gal/ ac d). Other references did not specify if the landfill being studied was active or closed so further analysis would be difficult.

Reference 1: Richard J. Wigh, " Comparison of Leachate Characteristics from Selected Municipal Solid Waste Test Cells," Project Summary. U. S. Environmental Protection Agency, September 1984. EPA 600/ S2 84 124.

Data: Four test cells had measurement data, giving L/ S ratio directly ( L/ S: annual leachate generation [ L/ yr] divided by mass of dry waste in landfill [ kg]). The tests were conducted in Boone County KY, Sonoma County CA, and Cincinnati OH using municipal solid waste. Cell 1 ( KY): L/ S= 0.57/ yr, mass of refuse= 286,000 kg, maximum depth of 2.56 m Cell 2 ( CA): L/ S= 1.91/ yr, mass of refuse= 352,000 kg, maximum depth of 2.62 m Cell 3 ( KY): L/ S= 0.58/ yr, mass of refuse= 2,113 kg, maximum depth of 2.56 m Cell 4 ( OH): L/ S= 0.99/ yr, mass of refuse= 1,855 kg, maximum depth of 2.4 m Precipitation: The average rainfall at the Kentucky and Ohio sites is 41 inches per year. The average rainfall at the California site is 30 inches per year. September 2000 C 2 Draft Reference 2: Nancy Ragle, John Kissel, Jerry Ongerth, Foppe DeWalle. " Composition and Variability of Leachate from Recent and Aged Areas within a Municipal Landfill." Water Environment Research 67: 238 242 ( March/ April 1995).

Data: Two sites had data, both from a MSW landfill near Seattle WA. One site was " old" and one was " new." At these sites the leachate generation rate and L/ S ratio were calculated from the available data. Old site: L/ S= 0.0047/ yr, L= 1094 L/ hr, area is 21.8 ha, mass of refuse 2.04x106 ton, unlined with clay/ membrane cap. Leachate generation rate is 130 gal/ ac d. New site: L/ S= 0.0052/ yr, L= 3409 L/ hr, area is 41.3 ha, mass of refuse 5.7x106 ton, synthetic liner and leachate collection system with clay cap. Leachate generation rate is 210 gal/ ac d.

Precipitation: The rainfall at the study location was reported as 54 inches per year.

Reference 3: Ole Johannsen and Dale Carson, " Characterization of Sanitary Landfill Leachates." Water Research 10: 1129 1134 ( 1976).

Data: One site had data, a MSW landfill near Seattle WA, which may or may not be the same one identified in reference 2. The leachate generation rate and L/ S ratio were calculated from the available data. L/ S= 0.096/ yr, L= 20,000 m3/ month, area is 120 ha, volume of refuse is 2.5 x106 m3, maximum fill height is 15 m. Leachate generation rate is 590 gal/ ac d.

Precipitation: The rainfall at the study location was reported as 49 inches per year.

Reference 4: P. Baccini, G. Henseler, R. Figi, and H. Belevi, " Water and Element Balances of Municipal Solid Waste Landfills," Waste Management and Research 5: 483 499 ( 1987).

Data: Several sites were investigated and leachate generation rates developed for MSW landfills. L/ S ratios were approximately 0.025 to 0.05/ yr ( mass water per mass MSW). Leachate generation rates were not given.

Precipitation: Not presented.

Reference 5: James Lu, Bert Eichenberger, Robert Steams. Leachate from Municipal Landfills: Production and Management. Noyes Publications, Park Ridge NJ, 1985.

Data: Five MSW landfill sites were investigated; some of the landfills contained mixtures of industrial wastes ( no more than 30 percent). Waste volumes, L/ S ratios, and leachate generation rates had to be calculated from available data. Site 1: L/ S= 0.0033/ yr, refuse volume ( est)= 3.09x106 yd3, average depth of 33 ft, 58 acre. Leachate generation rate is 100 gal/ ac d. Site 2: L/ S= 0.0065/ yr, refuse volume ( est)= 0.81x106 yd3, average depth of 20 ft, 25 acre. Leachate generation rate is 120 gal/ ac d. Site 3: L/ S= 0.034 to 0.073/ yr, refuse volume ( est)= 32,000 yd3, average depth of 20 ft, 1 acre. Leachate generation rate is 620 gal/ ac d. Site 4: L/ S= 0.0038 to 0.0092/ yr, refuse volume ( est)= 0.14x106 yd3, average depth of 8 ft, 11 acre. Leachate generation rate is 27 gal/ ac d. Site 5: L/ S= 0.0041 to 0.017/ yr, refuse volume ( est)= 0.23x106 yd3, average depth of 20 ft, 7 acre. Leachate generation rate is 74 gal/ ac d.

Precipitation: Not presented. September 2000 C 3 Draft Reference 6: " Management of Used Fluorescent Lamps: Preliminary Risk Assessment," Final Report. U. S. Environmental Protection Agency, May 14, 1993.

Data: Report presented data on waste input and leachate generation for an MSW landfill sampled by NUS in 1987 and four Wisconsin MSW landfills reported in Gordon, et. al., 1984. L/ S ratios were calculated from these data. Data on areas were not presented, so normalized leachate generation could not be calculated. SM Landfill: L/ S= 0.059/ yr , mass of refuse= 536,350,000 kg Brown Co. E. Landfill: L/ S= 0.019, mass of refuse= 93,294,000 kg Eau Claire Co. Landfill: L/ S= 0.055, mass of refuse= 56,599,000 kg Marathon Co. Landfill: L/ S= 0.026, mass of refuse= 93,122,000 kg Delafield Landfill: L/ S= 0.0097, mass of refuse= 82,766,000 kg Precipitation: Not presented. September 2000 D 1 Draft APPENDIX D. L/ S RATIOS AND LEACHATE GENERATION RATES CALCULATED FROM CASE STUDIES Data Summary: SAIC is assembling case studies for landfills using data from states, previous EPA studies, etc. In some cases, these case studies include the data elements discussed in Appendix A: ( 1) total quantity of leachate generated in a period of time ( e. g., annually), ( 2) landfill area, and ( 3) waste volume or average depth. These data were used to calculate L/ S ratios or leachate generation rates for the site.

A total of eight sites were identified in which sufficient data were available to characterize leachate generation rate, L/ S ratio, or both. Unlike the data from Appendix A, these sites are predominantly non MSW landfills. These data serve as a way to compare the Office of Water data to " actual" cases. Additionally, they provide a way to identify trends in the data. Trends observed from these data sources are as follows:

° Leachate generation was monitored at a single site over a period of 10+ years, from prior to cap placement to following cap placement. A noticeable drop in leachate generation rate was observed. L/ S ratio necessarily decreases as well.

° The two sites with the highest L/ S ratios ( 0.15/ yr from the Radford VA site and the Chillicthe OH site) have very different landfill volumes: 300,000 and 34,000 yd3. This is useful in comparing to the Appendix A finding that high L/ S ratios were found only in very small landfills. This finding may help to identify that a " high" L/ S ratio would be over 0.15/ yr.

Case Study Name Waste and Landfill Characteristics Waste Volume and Leachate Generation Rate Calculated L/ S Ratio, 1/ yr Calculated Leachate Generation Rate, gal/ ac d Reference Western Berks, Berks County PA Closed and capped ( PVC/ clay) hazardous waste cell Waste: 104,800 yd3 Area: 2.3 acres Leachate prior to cap ( 4 year avg): 1.7 x106 gallons/ yr Leachate following cap ( 7 yr avg): 260,000 gallons/ yr prior to cap: 0.080 after cap: 0.012 prior to cap: 2,100 after cap: 320 Pre petition to Delist Hazardous Waste Leachate Generated from Site A 1 3 at the Western Berks Refuse Authority, November 1997 ( submitted to EPA Region 3).

Gum Springs Landfill K088 monofill Waste: 78,734 tons/ yr ( 4 year average, range from 970 to 187,592 tons/ yr) Area: Not available Leachate: 2,005,700 gal/ yr ( 4 year average, range from 1,151,623 to 5,191,567 gal/ yr) average 0.11 ( range from 0.0 to 0.15)  Reynolds Gum Springs Landfill K088 study, Attachment II, 5/ 29/ 97 Case Study Name Waste and Landfill Characteristics Waste Volume and Leachate Generation Rate Calculated L/ S Ratio, 1/ yr Calculated Leachate Generation Rate, gal/ ac d Reference September 2000 D 2 Draft EPA Report, " Site 13" unspecified location Closed and capped hazardous waste cell Waste: 88,600 MT Area: Not available Leachate: 18,000 to 28,000 L/ yr (?) 0.0003  " Composition of Leachates from Actual Hazardous Waste Sites", SAIC, c. 1986.

Ingles Mountain Debris Landfill, Radford VA Active C& D landfill Waste: about 34,000 yd3 Area: 3.25 acres Leachate: 1 x106 gallons/ yr 0.15 880 Office Of Water Docket for the Landfill Point Source Category ( W 97 17), Presampling Site Visit Report Modern Landfill, York PA Active MSW Landfill Waste: total quantity not available. Area: 167 acres Leachate: 1.2 to 2.4 x106 gallons/ yr  39 Office Of Water Docket for the Landfill Point Source Category ( W 97 17), Presampling Site Visit Report Frey Farm Landfill, Lancaster PA Active MWC ash cell Waste: About 400,000 ton Area: 6 acres Leachate: 420,000 gallons/ yr 0.005 200 Office Of Water Docket for the Landfill Point Source Category ( W 97 17), Presampling Site Visit Report Mead Paper Depot Landfill, Chillicothe, OH Closed industrial waste landfill ( pulp sludge and fly ash) Waste: 300,000 yd3 Area: Not available Leachate: 8.8 x106 gallons/ yr 0.15  Office Of Water Docket for the Landfill Point Source Category ( W 97 17), Presampling Site Visit Report Mormon Hollow Road Demolition Landfill, Wendell MA C& D waste landfill with both active and capped cells Waste: Not available Area: 8 acre Leachate: 960,000 gallons/ yr  340 Office Of Water Docket for the Landfill Point Source Category ( W 97 17), Presampling Site Visit Report Turnkey Recycling and Environmental Enterprises, Gonic NH MSW/ C& D Landfill with both active and capped cells Waste: Not available Area: 46 acres closed, 50 acres active Leachate: 1.8 x106 gallons/ yr from closed section, 5.5 x106 gallons/ yr from active section  closed: 110 active: 310 Office Of Water Docket for the Landfill Point Source Category ( W 97 17), Presampling Site Visit Report September 2000 E i Draft APPENDIX E. LEACHATE QUANTITY DATABASE Source: Effluent Guidelines for Landfills Point Source Category 308 Questionnaire Data Dictionary The primary data used in this analysis consist of information extracted from responses to an Office of Water survey. The paragraphs below identify and explain the specific data elements used. Where appropriate, the specific survey question number from which the data were extracted is identified. A table presentation of the data follows the dictionary.

Precip_ Cat A category assigned based on the precipitation reported in Question A. 59 ( see " Precip", below), where 1 indicates less than 40 inches/ year, 2 indicates 40 to 60 inches/ year, and 3 indicates 60 or more inches/ year.

SURVEYID An identification code assigned to individual survey responses.

SUBCAT Indicates the type of landfill: municipal , Subtitle D ( non MSW), or hazardous waste.

Unit_ No A number indicating the specific landfill being described when a survey response covers more than one landfill.

Leach_ Vol_ Active The average leachate production rate for the active landfill area in gallons/ acre day during the operating periods between 1988 and 1992 ( Question A. 52).

Leach_ Vol_ Inactive The average leachate production rate for the inactive or closed landfill areas in gallons/ acre day during the operating periods between 1988 and 1992 ( Question A. 53).

Precip The average annual precipitation during 1988 through 1992 ( Question A. 59).

LS_ Ratio_ BODF The liquid to solid ratio calculated based on average daily flow and past waste inflows to the unit.

Stream_ No An identification number assigned to each wastewater stream generated by activity associated with the landfill ( Table A 1). Information about wastewater streams identified as landfill leachate ( see below) was extracted and used in this analysis. September 2000 E ii Draft Source A code identifying the source of the wastewater stream. The first two characters identify the landfill number ( see " Unit_ No", above). The final two characters identify the source type. Only wastewater streams with the final two characters " 2L", indicating landfill leachate, were used for this analysis ( Table A 1).

Daily_ Min_ Flow The minimum daily flow of landfill leachate in 1992 in gallons ( Table A 1).

Daily_ Max_ Flow The maximum daily flow of landfill leachate in 1992 in gallons ( Table A 1).

Daily_ Ave_ Flow The average daily flow of landfill leachate in 1992 in gallons ( Table A 1).

Estimated Indicates whether the data provided in the previous three data elements are based on actual measurements (" A") or estimates (" E") ( Table A 1).

No_ Cells The total number of cells included in the landfill ( Question A. 30. a).

No_ Cells_ Active The number of active cells included in the landfill ( Question A. 30. b).

No_ Cells_ Inactive The number of inactive cells included in the landfill ( Question A. 30. c).

Past_ Waste_ Volume The total volume of waste landfilled ( Question A. 32, total row).

Future_ Waste_ Volume The total future landfill capacity ( Question A. 32, total row).

Waste_ Units A code indicating the units in which the previous two data elements are expressed ( e. g., " CYD" indicates cubic yards) ( Question A. 32).

Length The typical cell length ( Question A. 37. a).

Width The typical cell width ( Question A. 37. a).

Dim_ Units A code indicating the units in which the previous two data elements are expressed ( e. g., " FET" indicates feet) ( Question A. 37. a).

Depth The typical cell depth ( Question A. 37. b). September 2000 E iii Draft Dep_ Units A code indicating the units in which the previous data element is expressed ( e. g., " FET" indicates feet) ( Question A. 37. b).

Total_ Area The total area of the landfill, based on " Length," " Width," and " Depth," above. September 2000 F 1 Draft APPENDIX F. QUALITY ASSURANCE ANALYSIS AND ADJUSTMENT OF STATE OF WISCONSIN LEACHATE CHARACTERIZATION DATA Among the data collected for inclusion in the LEACH 2000 database was a data set from the State of Wisconsin Department of Natural Resources ( DNR) with characterization data for approximately 70 landfills. In examining this data set, certain patterns of statistical outliers were discovered. These patterns were consistent with intermittent misreporting of analytical units. Wisconsin DNR staff was contacted about this possible explanation for the outliers. The DNR staff agreed that the data points did appear questionable ( and, in some cases, physically impossible) and that misreporting of analytical units at the laboratory or reporting facility level was a possible explanation. The DNR, however, did not have sufficient resources to investigate the data points in question and verify that misreporting had occurred.

So that the Wisconsin data set could be incorporated into the LEACH 2000 database as accurately a possible, a detailed analysis was undertaken to identify and correct data points suspected of having a problem with reporting of analytical units. This appendix describes the procedures used in and adjustments made as a result of this analysis. Two related misreporting problems were suspected in the Wisconsin data. These problems were addressed using the techniques below, identified as " Approach 1" and " Approach 2." The Wisconsin data set adjusted as a result of these approaches is contained in the " Source_ WI_ New" and " Leach Combined" tables of the LEACH 2000 database. The original Wisconsin data set, unadjusted by either Approach 1 or 2 has been maintained in the database in the table " Source_ WI."

Approach 1 One suspected problem was a pattern of data points reported as being in milligrams per liter ( mg/ L) that appeared to actually be in micrograms per liter ( µ g/ L). This problem resulted in data points that were not only questionably high, but physically impossible ( e. g., magnesium levels of greater than 1,000,000 mg/ L, which would correspond to concentrations greater than 100 percent). This problem appeared to effect every data point that was originally reported in the Wisconsin data set to be in mg/ L. A possible explanation for this pervasive problem would be if all of the data originally recorded in mg/ L were converted to µ g/ L without changing the field identifying the analytical units.

To add confidence that this problem was the result of consistent misreporting, summary statistics were generated for all constituents that were reported in mg/ L in the Wisconsin data set. For nearly all these constituents, the Wisconsin data set included at least one observation that appeared to be a physical impossibility ( e. g., concentration in excess of 100 percent). The Wisconsin summary statistics for these constituents also were compared to summary statistics for the same constituents from all other data sources included in the LEACH 2000 database. In all cases, the Wisconsin data had maxima, means, and minima that were approximately three orders of magnitude greater than the corresponding statistics from the other data sources. This result was taken as sufficient evidence that a pervasive misreporting problem had occurred for all data points originally identified as in mg/ L. All of these data points, therefore, were divided by 1,000 September 2000 F 2 Draft to convert them to the correct units. This conversion resulted in summary statistics much more similar to those from the other data sources, as shown for a sample constituent in Table F 1, below. Table F 2 lists all of the constituents that were converted in this manner.

Table F 1. Effect of Adjustments Using Approach 1: Summary Statistics for Alkalinity from Various Data Sources ( mg/ L)

Data Source Minimum Mean Maximum Original Wisconsin Data Set 1,260 2,602,000 44,400,000 Converted Wisconsin Data Set 1.26 2,602 44,400 All Other Data Sets 1.00 3,621 110,000 Table F 2. Constituents in Wisconsin Data Set Adjusted Using Approach 1 ALKALINITY, BICARBONATE ( MG/ L AS CACO3) ALKALINITY, CARBONATE ( MG/ L AS CACO3) ALKALINITY, TOTAL ( MG/ L AS CACO3) ALKALINITY, TOTAL FILTERED ( MG/ L AS CACO3) AMMONIA, UNIONIZED PERCENT OF TOT. T PH CAL ( MG/ L) BIOCHEMICAL OXYGEN DEMAND ( MG/ L, 5 DAY  20DEG C) BIOCHEMICAL OXYGEN DEMAND ( MG/ L, 6 DAY  20DEG C) BIOCHEMICAL OXYGEN DEMAND, ( MG/ L, 5 DAY DISSOLVED) BORON, DISSOLVED ( MG/ L B) BORON, TOTAL ( MG/ L B) CALCIUM, DISSOLVED ( MG/ L CA) CALCIUM, TOTAL ( MG/ L CA) CARBON, TOTAL ORGANIC ( TOC) ( MG/ L AS C) CARBONATE ION ( MG/ L CO3) CHEMICAL OXYGEN DEMAND, FILTERED ( MG/ L) CHEMICAL OXYGEN DEMAND, UNFILTERED ( MG/ L) CHLORIDE, TOTAL OR DISSOLVED IN WTR SMPL ( MG/ L CL) CYANIDE, TOTAL ( MG/ L CN) FLUORIDE, DISSOLVED ( MG/ L F) FLUORIDE, TOTAL ( MG/ L F) FORMALDEHYDE ( MG/ L) HARDNESS, CALCIUM ( CA) ( MG/ L AS CACO3) HARDNESS, MAGNESIUM ( MG) ( MG/ L AS CACO3) HARDNESS, TOTAL ( MG/ L AS CACO3) HARDNESS, TOTAL, FILTERED ( MG/ L AS CACO3) IRON, DISSOLVED ( MG/ L FE) IRON, TOTAL ( MG/ L FE) MAGNESIUM, DISSOLVED ( MG/ L MG) MAGNESIUM, TOTAL ( MG/ L MG) MOLYBDENUM, TOTAL ( MG/ L MO) NITRATE NITROGEN, DISSOLVED ( MG/ L AS N) NITRATE NITROGEN, TOTAL ( MG/ L AS N) NITRITE NITROGEN, DISSOLVED ( MG/ L AS N) NITRITE NITROGEN, TOTAL ( MG/ L AS N) NITRITE PLUS NITRATE, DIS. 1 DET. ( MG/ L AS N) NITRITE PLUS NITRATE, TOTAL 1 DET. ( MG/ L AS N) NITROGEN, AMMONIA, DISSOLVED ( MG/ L AS N) NITROGEN, AMMONIA, TOTAL ( MG/ L AS N) NITROGEN, KJELDAHL, DISSOLVED ( MG/ L AS N) NITROGEN, KJELDAHL, TOTAL ( MG/ L AS N) NITROGEN, ORGANIC, TOTAL ( MG/ L AS N) OIL & GREASE ( FREON EXTR GRAV METH) TOT REC ( MG/ L) PHOSPHATE, TOTAL ( MG/ L AS PO4) PHOSPHORUS, TOTAL ( MG/ L P) POTASSIUM, DISSOLVED ( MG/ L K) POTASSIUM, TOTAL ( MG/ L K) SODIUM, DISSOLVED ( MG/ L NA) SODIUM, TOTAL ( MG/ L NA) SOLIDS, TOTAL ( MG/ L) SOLIDS, TOTAL DISSOLVED ( MG/ L) SOLIDS, TOTAL SUSPENDED ( MG/ L) SULFATE, DISSOLVED ( MG/ L SO4) SULFATE, TOTAL ( MG/ L SO4) SULFIDE, DISSOLVED ( MG/ L S) SULFIDE, TOTAL ( MG/ L S) SULFITE ( MG/ L SO3) TANNIN AND LIGNIN, COMBINED ( MG/ L) 1 Excluding data from the EPA Office of Water, which was not available at the time this test was performed.

September 2000 F 3 Draft Approach 2 The other suspected misreporting problem in the Wisconsin data set did not appear in a similar consistent pattern. Certain individual data points, or series of data points taken from a period of dates, were approximately three orders of magnitude lower than other data points for the same constituent at the same landfill. For some parameters, this degree of variation alone might not be sufficient to suspect a reporting problem ( i. e., the variation could be due to legitimate, natural changes in leachate concentration). For many of these data points, however, the reported concentrations also were several orders of magnitude below typical analytical detection limits ( e. g., lead concentrations in the range of 0.01 µ g/ L).

These questionable data points did not occur in obvious patterns. That is, they were not limited to a few landfills or a particular period in time. When these suspiciously low data points occurred at a given landfill during a given time period, however, they appeared to occur across constituents. For example, frequently, at landfill " x" on date " y" all metals concentrations would be three orders of magnitude lower than their previous or subsequent concentrations. A possible explanation for this phenomenon would be if a group of analytical results actually measured in mg/ L were inadvertently misreported as being in µ g/ L. This problem could occur intermittently at different reporting facilities at different points in time.

In part because no clear pattern existed to these questionable data points, no one method would be sufficient to detect and correct them. To detect where this misreporting problem might occur, a series of statistical and rational criteria were established. All of the Wisconsin data were evaluated according to the following criteria:

1. Statistical outlier with respect to the full data set: data points met this criterion if they were determined to be outliers based on a statistical test ( Tukey's method as found in Tukey, " Exploratory Data Analysis," 1977, pp 42 44) that compared them to the full set of LEACH 2000 data from all data sources1 for that constituent.

2. Reported concentration lower than typical analytical detection limits: data points met this criterion if they were more than an order of magnitude below reasonable analytical detection limits. Because detection limits can vary from lab to lab, the detection limits used for this test were Practical Quantitation Limits ( PQLs) for ground water monitoring as reported in 40 CFR 264, Appendix IX. For constituents with no PQL in Appendix IX, the " typical" detection limit was assumed to be the median detection limit reported for all observations for that constituent in the LEACH 2000 database.

3. Outside control limits specific to the facility and constituent: data points met this criterion if their moving average with the previous or subsequent data point fell outside statistical September 2000 F 4 Draft control limits established ( using the method described in Gilbert, " Statistical Methods for Environmental Pollution Monitoring," 1987, pp. 193 200) for the full series of data for that constituent at that landfill.

4. Detection limit lower than typical analytical detection limits: a data point met this criterion if a detection limit was reported and was more than an order of magnitude below the typical detection limits described in criterion ( 2), above.

5. Correlated with other questionable data points: a data point met this criterion if it occurred on the same date as another data point meeting criterion ( 1) or ( 2), above.

Criterion ( 1) and criterion ( 2) were considered the " major" criteria. It was considered sufficient evidence that a units misreporting problem was present if a data point met one of the major criterion and any other criterion, major or minor. It also was considered sufficient evidence that a units misreporting problem was present if a data point met all three of the minor criteria. When these conditions were met, concentrations were adjusted by three orders of magnitude ( either up or down, depending on whether they were high or low outliers). Data points were not adjusted, however, if this adjustment would result in an outlier problem at the other end of the distribution. For example, if multiplying a seemingly low concentration by 1,000 would result in a concentration that would be a high outlier by criterion ( 1), the data point was not adjusted.

A total of 920 observations were adjusted as a result of Approach 2. These data points are identified in the LEACH 2000 database with a " 1" in the " QA Adjusted?" field of the " Source_ WI_ New" table. Table F 3, below, shows the effect of these adjustments for an example constituent.

Table F 3. Effect of Adjustments Using Approach 2: Summary Statistics for Lead before and After Conversion Data Source PQL Minimum Percent of Obs. < 0.1 µ g/ L Percent of Obs. < 1 µ g/ L Percent of Obs. < 10 µ g/ L Original Wisconsin Data Set 10 µ g/ L 0.0018 µ g/ L 9% 13% 47%

Converted Wisconsin Data Set 0.18 µ g/ L 0% 0.2% 37%