Chapter 10: Air Quality
SAN JOAQUIN VALLEY
(Valley MA & Sierra MA combined, both are in the SJVUAPCD)

AREA
SOURCES

UNITS

PM10 model  or formula

PM10
evolution rate

PM10 1990
tons/yr

% change
/year*

PM10 1996 tons/yr

1990 ROG tons/yr

1996 ROG tons/yr

1990 NOx tons/yr

1996 NOx tons/yr

Prescribed Fire >3000'

1990 -1,787ac
1996 -  736 ac

AP-42
5th revision

96 lbs/ac

86

-41% in 95
thereafter 0%

35

    

Prescribed Fire

1990-   647 ac
1996-   264 ac

AP-42
5th revision

389 lbs/ac

126

 

51.0

    

O&G new wells

1990 -    273
1996 -    161

Dennison
et al

48 

6.6

-41%
thereafter 0%

3.9

3.3

3.9

83.3

2.3

O&G existing wells

1990 - 5,214
1996 - 5,058

Dennison
et al

210 

547.5

-3%
thereafter 0%

531.0

4,940.0

4,972.0

339.0

329.0

Livestock Grazing >3000´ -disturbed acres

         1,939 ac

Wind Erosion equation

10 ton/ac/yr (0.5 PM10 fraction)

9,695

0%

9,695

    

Livestock Grazing
-disturbed acres

         2,212 ac

Wind Erosion equation

37 ton/ac/yr (0.5 PM10 fraction)

40,922

0%

40,922

    

Land Use Auth -pipe & power lines, comm. sites etc. >3000´

1990 - 34.6 ac
1996 -   9.7 ac

Wind Erosion equation

10 ton/ac/yr (0.5 PM10 fraction)

173

-41%
thereafter 0%

48.5

    

Land Use Auth -pipe & power lines, comm. sites etc.

1990-  31.2 ac
1996-  51.5 ac

Wind Erosion equation

30 ton/ac/yr (0.5 PM10 fraction)

468

-41%
thereafter 0%

772.5

    

Landfills >3000´
Kern Valley - 36 ac; Kennedy Meadows - 10 ac

45 tons/day muni. waste

SJVAUPCD - B.Smith

 

0

-88% in 95 thereafter 2.75%

 

0.3

neg

  

Govt. Const. >3000´ PCT Trail

             8.4 ac

EPA A9-92

21.8 lbs/hr

0.6

-100% in 95 thereafter 0%

 

0

   
 
 

Chapter 10: Air Quality
SAN JOAQUIN VALLEY
(Valley MA & Sierra MA combined, both are in the SJVUAPCD)

 
 

AREA
SOURCES

UNITS

PM10 model  or formula

PM10
evolution
rate

PM10 1990
tons/yr

% change
/year*

PM10 1996 tons/yr

1990 ROG tons/yr

1996 ROG tons/yr

1990 NOx tons/yr

1996 NOx tons/yr

EmployeeTrans
-130 employees 1990 
-103 employees 1996 

mean one way    
trip - 12.09 mi

24 gms./mi

 

0.2

-21
thereafter 0%

02

03

02

  

Road grading >3000' 

327 ac

36 ac

AP-42
5th revision

7.7 lbs/day
2.6 lbs/day

0.5

neg

0%

0%

0.2

13

na

ns

na

ns

03

na

03

na

Off Road 4WD exhaust -PM10 >3000'

26,0813 mi

Booz-Allen
& Hamilton, CARB

8.2 lbs/1,000 gal

neg

 2%

neg

    

Off Road 4WD exhaust - PM10

18,000,000 mi

Booz-Allen
& Hamilton, CARB

8.2 lbs/1,000 gal

0.1

4%

0.2

    

Off Road motorcycles ATV exhaust PM10>3000'

         500 mi

Booz-Allen
& Hamilton, CARB

1.14 lbs/1,000 gal

neg

2%

neg

    

Off Road motorcycles
ATV exhaust PM10

1,965,160 mi

Booz-Allen
& Hamilton, CARB

1.14 lbs/1,000 gal

neg

2%

neg

    

On Road (90%light/med 10% hvy) exhaust PM10 >3000'

265,900 mi

DTIM-(SCAG) 
Burden-(CARB)

.24 gms/mi

32

 2%

33

    

On Road (90%light/med 10% hvy) exhaust PM10

452,000 mi

DTIM-(SCAG)
Burden-(CARB)

24 gms/mi

neg

4%

neg

na

na

na

na

Entrain PM10 >3000' 
Off Road 4WD 

260,813 mi

Booz-Allen & Hamilton, CARB

0.44 lbs/mi

57 

2%

59

    

Entrain PM10-Off Road 4WD

18,000,000 mi

AP-42
5th revision 

1.67 lbs/mi

603

4%

627.0

    
 

Chapter 10: Air Quality
SAN JOAQUIN VALLEY
(Valley MA & Sierra MA combined, both are in the SJVUAPCD)

 

AREA
SOURCES

UNITS

PM10 model  or formula

PM10
evolution rate

PM10 1990
tons/yr

% change
/year*

PM10 1996 tons/yr

1990 ROG tons/yr

1996 ROG tons/yr

1990 NOx tons/yr

1996 NOx tons/yr

Entrained PN10 >3000' Off Road MC/ATV  

500MI

AP-42
5th revision

 

neg

2%

neg

    

Entrained PN10 Off Road

1,965,160 mi

 

.08 lbs/mi

79

2%

80.2

    

Entrained PM10
On Road >3000' (90% light/med,10% hvy)

265,900 mi

AP-42
5th revision

2.82 lbs/mi

375

2%

383

    

Entrained PM10 On Road <3000' (90% light/med,10% hvy)

452,000 mi 

CEQ -air quality
HB.SCAQMD

3.46 lbs/mi 

782

4%

813.2

    

Wind Erosion >3000'
Unpaved Roads

         1,690 ac

Wind Erosion equation

10 ton/ac/yr (0.5 PM10 fraction)

8,450

-20% in 95 thereafter
0%

6,760

    

Wind Erosion <3000'
Unpaved Roads 

         17 ac

Wind Erosion equation

30 ton/ac/yr (0.5 PM10 fraction)

255

0%

255

    

Wind Erosion Trails    
 >3000'

45 ac

Wind Erosion equation

6.8 ton/ac/yr (0.5 PM10 fraction)

153

-10%
thereafter 0%

166.8

    

Wind Erosion Trails

33 ac

Wind Erosion equation

17.5 ton/ac/yr (0.5 PM10 fraction)

288.9

-10%
thereafter 0%

259.9

    

Mobile Sources >3000' Fleet (gen.pur)

negligible

  

negligible

      

Mobile Sources >3000' Fleet (gen.pur)

442,920 mi

 

refer to worksheet

<1

-20%

<1

0.3

0.1

0.4

0.2

  

Grand Totals

 

63,100.4

 

61,509.6

4,943.9

4,796.2

423

331.8

 
 

Chapter 10: Air Quality
SAN JOAQUIN VALLEY
(Valley MA & Sierra MA combined, both are in the SJVUAPCD)

 
 

Hazard Response - Non-Predictable emissions > 3000´

 

AREA SOURCES

UNITS

PM10 model  or formula

PM10
evolution rate

PM10 1990
tons/yr

% change
/year*

PM10 1996 tons/yr

1990 ROG tons/yr

1996 ROG tons/yr

1990 ROG tons/yr

1996 ROG tons/yr

Fleet (Emergemcy Vehicles - Fire

1990 -17,000 mi
1996 -21,000 mi

 

refer to worksheet

  

4.5

neg

6.1

 

3.4

Wildfires

1990 -1,139 ac
1996 -  53.4 ac

 

refer to worksheet

3,850

6700% in 95

72.9

    

Presuppression

1990- 46,500 mi
1996- 46,500 mi

         

Helicopter

1990 -      50 hrs
1996 - 9,000 mi

         
 

Hazard Response - Non-Predictable emissions > 3000´

 

Fleet (Emergemcy Vehicles - Fire

1990 - 3,000 mi
1996 - 9,000 mi

CEQA Air Qual. HB SCAQMD

refer to worksheet

<1

 

34,572.0

    

Wildfires

1990 -    228 ac
1996 - 6,425 ac

 

refer to worksheet

6.4

6700% in 95

429.0

    

Presuppression

1990-149,300mi
1996-150,000mi

         

Helicopter

1990 - 50 hrs
1996 - 50 hrs

         
 

 * % change/year commencing with the firest planning year 1996

Page 110

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