Appendix C-1 Summary of Cost Impacts of Regulatory Options for Subpart XXX in 2023

Internal	

Option	# Option	Name

Annualized	

Capital	for	

Landfills	

Operating	LFG	

Engines

Annualized	

Capital	for	Flares

Annualized	

Mobilization/I

nstallation	

Costs

Annualized	

Capital	for	

Wells

Annualized	

Capital	for	

Wellheads

Annual	

Electricity	

Costs	to	

Operate	

Blowers

Annual	O&M	

for	Landfills	

with	LFG	

Engines

Annual	O&M	

for	Flares

Annual	O&M	

for	Wells

Total	Annual	

Costs

Annual	Revenue	

from	LFG	

Engines

Net	Annualized	

Control	Cost

1 Baseline (2.5/50) 9,934,308 708,960 61,443 571,593 880,892 2,030,412 8,452,991 39,737 1,276,560 23,956,896 21,315,288 2,641,608

2 Alternative Option (2.5/50); IL = 2 years 9,511,572 818,542 76,804 526,598 843,188 1,860,655 8,093,289 49,672 1,221,921 23,002,239 20,374,332 2,627,907

3 Proposal (2.5/40) 11,202,518 869,186 84,484 614,532 1,024,850 2,268,247 9,532,096 54,639 1,485,180 27,135,734 24,028,987 3,106,747

4

Alternative Option (2.5/40); IL = 

2 years; EL = 2 years 9,511,572 920,382 172,665 759,968 1,287,061 2,766,123 8,093,289 59,606 1,865,168 25,435,835 20,483,499 4,952,336

5 Alternative Option (2.0/40) 11,202,518 869,186 84,484 614,532 1,024,850 2,268,247 9,532,096 54,639 1,485,180 27,135,734 24,028,987 3,106,747

6

Alternative Option (2.0/40); IL = 

2 years 9,511,572 920,382 92,165 642,446 1,057,413 2,246,079 8,093,289 59,606 1,532,368 24,155,319 20,483,499 3,671,820

7 Alternative Option (2.0/34) 10,568,413 864,558 84,484 584,002 976,864 2,141,905 8,992,544 54,639 1,415,640 25,683,048 22,659,510 3,023,539

8

Alternative Option (2.5/34); IL = 

2 years; EL = 2 years 8,454,731 915,497 172,665 768,930 1,305,913 2,796,013 7,194,035 59,606 1,892,487 23,559,877 18,253,720 5,306,157

9 Alternative Option (3.0/40) 11,202,518 869,186 84,484 614,532 1,024,850 2,268,247 9,532,096 54,639 1,485,180 27,135,734 24,028,987 3,106,747

10

Alternative Option (3.0/40); EL = 

2 years 11,202,518 869,186 158,276 732,576 1,215,082 2,831,692 9,532,096 54,639 1,760,858 28,356,924 24,028,987 4,327,937

11 Alternative Option (2.0/50) 9,934,308 708,960 61,443 571,593 880,892 2,030,412 8,452,991 39,737 1,276,560 23,956,896 21,315,288 2,641,608

12

Alternative Option (2.5/50); EL = 

2 years 9,934,308 708,960 115,110 690,397 1,072,837 2,587,924 8,452,991 39,737 1,554,721 25,156,986 21,315,288 3,841,698

IL = Initial Lag

EL = Expansion Lag

Totals

 Annual Control Costs
Appendix C-1 Summary of Cost Impacts of Regulatory Options for Subpart XXX in 2023

Internal	

Option	# Option	Name

1 Baseline (2.5/50)

2 Alternative Option (2.5/50); IL = 2 years

3 Proposal (2.5/40)

4

Alternative Option (2.5/40); IL = 

2 years; EL = 2 years

5 Alternative Option (2.0/40)

6

Alternative Option (2.0/40); IL = 

2 years

7 Alternative Option (2.0/34)

8

Alternative Option (2.5/34); IL = 

2 years; EL = 2 years

9 Alternative Option (3.0/40)

10

Alternative Option (3.0/40); EL = 

2 years

11 Alternative Option (2.0/50)

12

Alternative Option (2.5/50); EL = 

2 years

IL = Initial Lag

EL = Expansion Lag

Initial	

Performan

ce	Tests

NMOC	

Emission	

Rate

Quarterly	Surface	

Monitoring	(30	m	

pattern)

Total	Testing	

and	

Monitoring

Annualized	

Control	Costs

Annual	Revenue	

from	LFG	

Engines

Net	Annualized	

Control	Cost

Total	

Testing	and	

Monitoring

Total	

Annualized	

Cost

 8,842 15,225 42,306 66,373 2,707,982

 11,053 11,842 47,098 69,993 2,697,900 (954,656) (940,955) (13,701) 3,619 (10,081)

 12,158 10,150 49,971 72,279 3,179,027 3,178,838 2,713,699 465,139 5,906 471,045

 13,264 8,459 53,275 74,998 5,027,333 1,478,939 (831,788) 2,310,727 8,624 2,319,352

 12,158 11,842 49,971 73,971 3,180,719 3,178,838 2,713,699 465,139 7,598 472,737

 13,264 10,150 53,275 76,689 3,748,509 198,424 (831,788) 1,030,212 10,316 1,040,528

 12,158 11,842 49,971 73,971 3,097,510 1,726,153 1,344,222 381,931 7,598 389,528

 13,264 10,150 53,275 76,689 5,382,847 (397,018) (3,061,567) 2,664,549 10,316 2,674,865

 12,158 10,150 49,971 72,279 3,179,027 3,178,838 2,713,699 465,139 5,906 471,045

 12,158 10,150 49,971 72,279 4,400,216 4,400,028 2,713,699 1,686,329 5,906 1,692,235

 8,842 15,225 42,306 66,373 2,707,982 - - - - -

 8,842 15,225 42,306 66,373 3,908,071 1,200,090 - 1,200,090 - 1,200,090

 Annual Testing and Monitoring Costs

Total	Annualized	

Cost

Incrementals
Internal	

Option	# Option	Name

	Annual	

NMOC	

Reductions	

(Mg/yr)

	Annual	

Methane	

Reductions	

(Mg/yr)

	Annual	

Methane	

Reductions	

(Mg	

CO2e/yr)

Incremen

tal			

Annual	

NMOC	

Reduction

s	(Mg/yr)

Incremen

tal		

Annual	

Methane	

Reduction

s	(Mg/yr)

Increment

al		Annual	

Methane	

Reduction

s	(Mg	

CO2e/yr) $/Mg	NMOC $/Mg	CH4

$/Mg	

CO2e

1 Baseline (2.5/50) 610 94,826 2,370,652 4,443 29 1.1

2

Alternative Option (2.5/50); IL 

= 2 years 570 88,688 2,217,206 (39) (6,138) (153,446)

3 Proposal (2.5/40) 689 107,130 2,678,257 79 12,304 307,605 5,956 38 1.5

4

Alternative Option (2.5/40); IL 

= 2 years; EL = 2 years 839 130,601 3,265,014 230 35,775 894,363 10,087 65 2.6

5 Alternative Option (2.0/40) 689 107,130 2,678,257 79 12,304 307,605 5,977 38 1.5

6

Alternative Option (2.0/40); IL 

= 2 years 684 106,359 2,658,975 74 11,533 288,323 14,037 90 3.6

7 Alternative Option (2.0/34) 651 101,206 2,530,152 41 6,380 159,500 9,499 61 2.4

8

Alternative Option (2.5/34); IL 

= 2 years; EL = 2 years 847 131,774 3,294,356 237 36,948 923,704 11,263 72 2.9

9 Alternative Option (3.0/40) 689 107,130 2,678,257 79 12,304 307,605 5,956 38 1.5

10

Alternative Option (3.0/40); EL 

= 2 years 855 133,078 3,326,941 246 38,252 956,289 6,883 44 1.8

11 Alternative Option (2.0/50) 610 94,826 2,370,652 - - -

12

Alternative Option (2.5/50); EL 

= 2 years 775 120,500 3,012,492 165 25,674 641,840 7,272 47 1.9

N/A*

* Based on characteristics of projected modeled landfills there are no additional landfills with capacities between 2.0 million and 2.5 million that 

exceed the NMOC emission threshold of 50 Mg/yr by 2023.

Total Incremental Cost Effectiveness

N/A - achieves less emission 

reductions than baseline in 2023

Appendix C-2 Summary of Emission 

Impacts of Regulatory Options for Subpart 

XXX in 2023
Appendix C-3 Summary of Enhanced Surface Emission Monitoring Cost Impacts in 2023

Internal	Option	

# Option	Name

Quarterly 

Surface 

Monitoring 

(25 ft pattern)

Transposing 

Data for 

Integrated 

Sample 

Calculations

Improved 

Surface 

Maintenance 

Allowance

Total 

Enhanced 

SEM

1 Baseline (2.5/50) 154,506 31,501 126,802 312,810

2

Alternative Option 

(2.5/50); IL = 2 

years 170,267 34,742 139,846 344,855

3 Proposal (2.5/40) 179,042 36,585 147,267 362,894

4

Alternative Option 

(2.5/40); IL = 2 

years; EL = 2 years 190,915 38,854 156,397 386,166

5

Alternative Option 

(2.0/40) 179,042 36,585 147,267 362,894

6

Alternative Option 

(2.0/40); IL = 2 

years 190,915 38,854 156,397 386,166

7

Alternative Option 

(2.0/34) 179,042 36,585 147,267 362,894

8

Alternative Option 

(2.5/34); IL = 2 

years; EL = 2 years 190,915 38,854 156,397 386,166

9

Alternative Option 

(3.0/40) 179,042 36,585 147,267 362,894

10

Alternative Option 

(3.0/40); EL = 2 

years 179,042 36,585 147,267 362,894

11

Alternative Option 

(2.0/50) 154,506 31,501 126,802 312,810

12

Alternative Option 

(2.5/50); EL = 2 

years 154,506 31,501 126,802 336,877

Annualized Costs of Enhanced Surface Monitoring 
Incremental 

SEM Costs 

above Current 

30-meter 

pattern

 270,504

 302,549

 320,588

 343,860

 320,588

 343,860

 320,588

 343,860

 320,588

 320,588

 270,504

 294,572
RunID Landfill_ID

Acreage 

2023

25f Hours 

Per 

Monitorin

g 

Occurance

25f Days 

Per 

Monitorin

g 

Occurance

25f Weeks 

per 

monitorin

g 

Occurance

25f 

Months 

per 

monitorin

g 

Occurance

25f Labor 

per year (4 

occurances 

per year)

25f 

Equipmen

t Rental 

per year 

(4 

occurance

s per year)

10 F3 39 39 5 1 1 7,652 1,400 

2 F3 39 39 5 1 1 7,652 1,400 

3 F3 39 39 5 1 1 7,652 1,400 

4 F3 39 39 5 1 1 7,652 1,400 

5 F3 39 39 5 1 1 7,652 1,400 

6 F3 39 39 5 1 1 7,652 1,400 

7 F3 39 39 5 1 1 7,652 1,400 

8 F3 39 39 5 1 1 7,652 1,400 

9 F3 39 39 5 1 1 7,652 1,400 

1 F6 256 256 32 7 2 50,878 8,800 

10 F6 256 256 32 7 2 50,878 8,800 

2 F6 256 256 32 7 2 50,878 8,800 

3 F6 256 256 32 7 2 50,878 8,800 

4 F6 256 256 32 7 2 50,878 8,800 

5 F6 256 256 32 7 2 50,878 8,800 

6 F6 256 256 32 7 2 50,878 8,800 

7 F6 256 256 32 7 2 50,878 8,800 

8 F6 256 256 32 7 2 50,878 8,800 

9 F6 256 256 32 7 2 50,878 8,800 

11 F6 256 256 32 7 2 50,878 8,800 

12 F6 256 256 32 7 2 50,878 8,800 

4 F7 46 46 6 2 1 9,073 2,800 

6 F7 46 46 6 2 1 9,073 2,800 

8 F7 46 46 6 2 1 9,073 2,800 

10 F8 27 27 4 1 1 5,310 1,400 

2 F8 27 27 4 1 1 5,310 1,400 

3 F8 27 27 4 1 1 5,310 1,400 

4 F8 27 27 4 1 1 5,310 1,400 

5 F8 27 27 4 1 1 5,310 1,400 

6 F8 27 27 4 1 1 5,310 1,400 

7 F8 27 27 4 1 1 5,310 1,400 

8 F8 27 27 4 1 1 5,310 1,400 

9 F8 27 27 4 1 1 5,310 1,400 

1 F10 58 58 8 2 1 11,564 2,800 

25-foot Traverse

C-4. Detailed Landfill Costs of 

Quarterly SEM under Current 30-

meter Pattern and the Tighter 25-

foot traverse pattern
10 F10 58 58 8 2 1 11,564 2,800 

2 F10 58 58 8 2 1 11,564 2,800 

3 F10 58 58 8 2 1 11,564 2,800 

4 F10 58 58 8 2 1 11,564 2,800 

5 F10 58 58 8 2 1 11,564 2,800 

6 F10 58 58 8 2 1 11,564 2,800 

7 F10 58 58 8 2 1 11,564 2,800 

8 F10 58 58 8 2 1 11,564 2,800 

9 F10 58 58 8 2 1 11,564 2,800 

11 F10 58 58 8 2 1 11,564 2,800 

12 F10 58 58 8 2 1 11,564 2,800 

1 F13 18 18 3 1 1 3,612 1,500 

10 F13 18 18 3 1 1 3,612 1,500 

2 F13 18 18 3 1 1 3,612 1,500 

3 F13 18 18 3 1 1 3,612 1,500 

4 F13 18 18 3 1 1 3,612 1,500 

5 F13 18 18 3 1 1 3,612 1,500 

6 F13 18 18 3 1 1 3,612 1,500 

7 F13 18 18 3 1 1 3,612 1,500 

8 F13 18 18 3 1 1 3,612 1,500 

9 F13 18 18 3 1 1 3,612 1,500 

11 F13 18 18 3 1 1 3,612 1,500 

12 F13 18 18 3 1 1 3,612 1,500 

1 F15 73 73 10 2 1 14,432 2,800 

10 F15 73 73 10 2 1 14,432 2,800 

2 F15 73 73 10 2 1 14,432 2,800 

3 F15 73 73 10 2 1 14,432 2,800 

4 F15 73 73 10 2 1 14,432 2,800 

5 F15 73 73 10 2 1 14,432 2,800 

6 F15 73 73 10 2 1 14,432 2,800 

7 F15 73 73 10 2 1 14,432 2,800 

8 F15 73 73 10 2 1 14,432 2,800 

9 F15 73 73 10 2 1 14,432 2,800 

11 F15 73 73 10 2 1 14,432 2,800 

12 F15 73 73 10 2 1 14,432 2,800 

1 F16 42 42 6 2 1 8,375 2,800 

10 F16 42 42 6 2 1 8,375 2,800 

2 F16 42 42 6 2 1 8,375 2,800 

3 F16 42 42 6 2 1 8,375 2,800 

4 F16 42 42 6 2 1 8,375 2,800 

5 F16 42 42 6 2 1 8,375 2,800 

6 F16 42 42 6 2 1 8,375 2,800 

7 F16 42 42 6 2 1 8,375 2,800 

8 F16 42 42 6 2 1 8,375 2,800 

9 F16 42 42 6 2 1 8,375 2,800 

11 F16 42 42 6 2 1 8,375 2,800 

12 F16 42 42 6 2 1 8,375 2,800 
1 F17 61 61 8 2 1 12,206 2,800 

10 F17 61 61 8 2 1 12,206 2,800 

2 F17 61 61 8 2 1 12,206 2,800 

3 F17 61 61 8 2 1 12,206 2,800 

4 F17 61 61 8 2 1 12,206 2,800 

5 F17 61 61 8 2 1 12,206 2,800 

6 F17 61 61 8 2 1 12,206 2,800 

7 F17 61 61 8 2 1 12,206 2,800 

8 F17 61 61 8 2 1 12,206 2,800 

9 F17 61 61 8 2 1 12,206 2,800 

11 F17 61 61 8 2 1 12,206 2,800 

12 F17 61 61 8 2 1 12,206 2,800 

1 F18 42 42 6 2 1 8,320 2,800 

10 F18 42 42 6 2 1 8,320 2,800 

2 F18 42 42 6 2 1 8,320 2,800 

3 F18 42 42 6 2 1 8,320 2,800 

4 F18 42 42 6 2 1 8,320 2,800 

5 F18 42 42 6 2 1 8,320 2,800 

6 F18 42 42 6 2 1 8,320 2,800 

7 F18 42 42 6 2 1 8,320 2,800 

8 F18 42 42 6 2 1 8,320 2,800 

9 F18 42 42 6 2 1 8,320 2,800 

11 F18 42 42 6 2 1 8,320 2,800 

12 F18 42 42 6 2 1 8,320 2,800 

10 F19 37 37 5 1 1 7,374 1,400 

3 F19 37 37 5 1 1 7,374 1,400 

4 F19 37 37 5 1 1 7,374 1,400 

5 F19 37 37 5 1 1 7,374 1,400 

6 F19 37 37 5 1 1 7,374 1,400 

7 F19 37 37 5 1 1 7,374 1,400 

8 F19 37 37 5 1 1 7,374 1,400 

9 F19 37 37 5 1 1 7,374 1,400 

1 F20 84 84 11 3 1 16,620 4,200 

10 F20 84 84 11 3 1 16,620 4,200 

2 F20 84 84 11 3 1 16,620 4,200 

3 F20 84 84 11 3 1 16,620 4,200 

4 F20 84 84 11 3 1 16,620 4,200 

5 F20 84 84 11 3 1 16,620 4,200 

6 F20 84 84 11 3 1 16,620 4,200 

7 F20 84 84 11 3 1 16,620 4,200 

8 F20 84 84 11 3 1 16,620 4,200 

9 F20 84 84 11 3 1 16,620 4,200 

11 F20 84 84 11 3 1 16,620 4,200 

12 F20 84 84 11 3 1 16,620 4,200 































































30m 

Hours Per 

Monitorin

g 

Occurance

30m Days 

Per 

Monitorin

g 

Occurance

30m 

Weeks per 

monitorin

g 

Occurance

30m 

Months 

per 

monitorin

g 

Occurance

30m Labor 

per year (4 

occurances 

per year)

30m 

Equipment 

Rental per 

year (4 

occurances 

per year)

SCAQMD: Surface Maintenance 

per year (4 occurances per year) 

 10 2 1 1 1,944 1,000 7,700 

 10 2 1 1 1,944 1,000 7,700 

 10 2 1 1 1,944 1,000 7,700 

 10 2 1 1 1,944 1,000 7,700 

 10 2 1 1 1,944 1,000 7,700 

 10 2 1 1 1,944 1,000 7,700 

 10 2 1 1 1,944 1,000 7,700 

 10 2 1 1 1,944 1,000 7,700 

 10 2 1 1 1,944 1,000 7,700 

 65 9 2 1 12,923 2,800 51,200 

 65 9 2 1 12,923 2,800 51,200 

 65 9 2 1 12,923 2,800 51,200 

 65 9 2 1 12,923 2,800 51,200 

 65 9 2 1 12,923 2,800 51,200 

 65 9 2 1 12,923 2,800 51,200 

 65 9 2 1 12,923 2,800 51,200 

 65 9 2 1 12,923 2,800 51,200 

 65 9 2 1 12,923 2,800 51,200 

 65 9 2 1 12,923 2,800 51,200 

 65 9 2 1 12,923 2,800 51,200 

 65 9 2 1 12,923 2,800 51,200 

 12 2 1 1 2,305 1,000 9,130 

 12 2 1 1 2,305 1,000 9,130 

 12 2 1 1 2,305 1,000 9,130 

 7 1 1 1 1,349 500 5,343 

 7 1 1 1 1,349 500 5,343 

 7 1 1 1 1,349 500 5,343 

 7 1 1 1 1,349 500 5,343 

 7 1 1 1 1,349 500 5,343 

 7 1 1 1 1,349 500 5,343 

 7 1 1 1 1,349 500 5,343 

 7 1 1 1 1,349 500 5,343 

 7 1 1 1 1,349 500 5,343 

 15 2 1 1 2,937 1,000 11,637 

30 meter traverse
 15 2 1 1 2,937 1,000 11,637 

 15 2 1 1 2,937 1,000 11,637 

 15 2 1 1 2,937 1,000 11,637 

 15 2 1 1 2,937 1,000 11,637 

 15 2 1 1 2,937 1,000 11,637 

 15 2 1 1 2,937 1,000 11,637 

 15 2 1 1 2,937 1,000 11,637 

 15 2 1 1 2,937 1,000 11,637 

 15 2 1 1 2,937 1,000 11,637 

 15 2 1 1 2,937 1,000 11,637 

 15 2 1 1 2,937 1,000 11,637 

 5 1 1 1 918 500 3,635 

 5 1 1 1 918 500 3,635 

 5 1 1 1 918 500 3,635 

 5 1 1 1 918 500 3,635 

 5 1 1 1 918 500 3,635 

 5 1 1 1 918 500 3,635 

 5 1 1 1 918 500 3,635 

 5 1 1 1 918 500 3,635 

 5 1 1 1 918 500 3,635 

 5 1 1 1 918 500 3,635 

 5 1 1 1 918 500 3,635 

 5 1 1 1 918 500 3,635 

 18 3 1 1 3,666 1,500 14,523 

 18 3 1 1 3,666 1,500 14,523 

 18 3 1 1 3,666 1,500 14,523 

 18 3 1 1 3,666 1,500 14,523 

 18 3 1 1 3,666 1,500 14,523 

 18 3 1 1 3,666 1,500 14,523 

 18 3 1 1 3,666 1,500 14,523 

 18 3 1 1 3,666 1,500 14,523 

 18 3 1 1 3,666 1,500 14,523 

 18 3 1 1 3,666 1,500 14,523 

 18 3 1 1 3,666 1,500 14,523 

 18 3 1 1 3,666 1,500 14,523 

 11 2 1 1 2,127 1,000 8,427 

 11 2 1 1 2,127 1,000 8,427 

 11 2 1 1 2,127 1,000 8,427 

 11 2 1 1 2,127 1,000 8,427 

 11 2 1 1 2,127 1,000 8,427 

 11 2 1 1 2,127 1,000 8,427 

 11 2 1 1 2,127 1,000 8,427 

 11 2 1 1 2,127 1,000 8,427 

 11 2 1 1 2,127 1,000 8,427 

 11 2 1 1 2,127 1,000 8,427 

 11 2 1 1 2,127 1,000 8,427 

 11 2 1 1 2,127 1,000 8,427 
 16 2 1 1 3,100 1,000 12,283 

 16 2 1 1 3,100 1,000 12,283 

 16 2 1 1 3,100 1,000 12,283 

 16 2 1 1 3,100 1,000 12,283 

 16 2 1 1 3,100 1,000 12,283 

 16 2 1 1 3,100 1,000 12,283 

 16 2 1 1 3,100 1,000 12,283 

 16 2 1 1 3,100 1,000 12,283 

 16 2 1 1 3,100 1,000 12,283 

 16 2 1 1 3,100 1,000 12,283 

 16 2 1 1 3,100 1,000 12,283 

 16 2 1 1 3,100 1,000 12,283 

 11 2 1 1 2,113 1,000 8,372 

 11 2 1 1 2,113 1,000 8,372 

 11 2 1 1 2,113 1,000 8,372 

 11 2 1 1 2,113 1,000 8,372 

 11 2 1 1 2,113 1,000 8,372 

 11 2 1 1 2,113 1,000 8,372 

 11 2 1 1 2,113 1,000 8,372 

 11 2 1 1 2,113 1,000 8,372 

 11 2 1 1 2,113 1,000 8,372 

 11 2 1 1 2,113 1,000 8,372 

 11 2 1 1 2,113 1,000 8,372 

 11 2 1 1 2,113 1,000 8,372 

 9 2 1 1 1,873 1,000 7,421 

 9 2 1 1 1,873 1,000 7,421 

 9 2 1 1 1,873 1,000 7,421 

 9 2 1 1 1,873 1,000 7,421 

 9 2 1 1 1,873 1,000 7,421 

 9 2 1 1 1,873 1,000 7,421 

 9 2 1 1 1,873 1,000 7,421 

 9 2 1 1 1,873 1,000 7,421 

 21 3 1 1 4,221 1,500 16,725 

 21 3 1 1 4,221 1,500 16,725 

 21 3 1 1 4,221 1,500 16,725 

 21 3 1 1 4,221 1,500 16,725 

 21 3 1 1 4,221 1,500 16,725 

 21 3 1 1 4,221 1,500 16,725 

 21 3 1 1 4,221 1,500 16,725 

 21 3 1 1 4,221 1,500 16,725 

 21 3 1 1 4,221 1,500 16,725 

 21 3 1 1 4,221 1,500 16,725 

 21 3 1 1 4,221 1,500 16,725 

 21 3 1 1 4,221 1,500 16,725