24-Hour 2019 Design Value Estimation

4-km CMAQ simulation for the SJV domain

2005 2006 2007 2007 DV 2017 2018 2019 2019 DV

55.0 52.0 57.4 54.8 24.6 23.9 25.7 24.7

3 3 3 3 3 3

RRF Q1 Q4

NH4 0.56 0.58

NO3 0.53 0.55

SO4 0.76 0.84

OC 0.25 0.27

EC 0.20 0.22

Salt 0.83 0.69

Geologic 0.65 0.75

Split Q1 Q4

NH4 0.13 0.11

NO3 0.39 0.35

SO4 0.05 0.02

OC 0.31 0.39

EC 0.02 0.04

Salt 0.01 0.01

Geologic 0.02 0.02

PB Water 0.08 0.07

Total 1.00 1.00

2005 → 2017

2005 Q1

2/3/2005 1/16/2005 2/12/2005 1/25/2005 1/31/2005 3/8/2005 1/13/2005 1/19/2005

53.0 42.0 31.0 30.0 29.0 29.0 27.0 25.0

NH4 6.86 5.42 3.98 3.85 3.72 3.72 3.46 3.20

NO3 20.39 16.12 11.84 11.46 11.07 11.07 10.29 9.51

SO4 2.50 1.98 1.45 1.40 1.36 1.36 1.26 1.17

OC 16.39 12.96 9.52 9.21 8.90 8.90 8.27 7.65

EC 0.89 0.70 0.52 0.50 0.48 0.48 0.45 0.41

Salt 0.37 0.29 0.21 0.21 0.20 0.20 0.18 0.17

Geologic 1.14 0.90 0.66 0.64 0.62 0.62 0.58 0.53

PB Water 3.97 3.14 2.31 2.23 2.16 2.16 2.00 1.85

Total 52.5 41.5 30.5 29.5 28.5 28.5 26.5 24.5

2017 Q1

NH4 3.83 3.03 2.23 2.15 2.08 2.08 1.93 1.79

NO3 10.73 8.48 6.23 6.03 5.82 5.82 5.42 5.01

SO4 1.91 1.51 1.11 1.07 1.04 1.04 0.96 0.89

OC 4.05 3.20 2.35 2.28 2.20 2.20 2.04 1.89

EC 0.18 0.14 0.10 0.10 0.10 0.10 0.09 0.08

Salt 0.30 0.24 0.18 0.17 0.16 0.16 0.15 0.14

Geologic 0.74 0.59 0.43 0.42 0.40 0.40 0.37 0.35

PB Water 2.13 1.68 1.24 1.19 1.15 1.15 1.07 0.99

Blank 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5

Total 24.4 19.4 14.4 13.9 13.5 13.5 12.5 11.6

Modesto - 14th Street

98th Percentile

Rank

Current Mass

Future Mass
2005 Q4

12/12/2005 11/21/2005 12/6/2005 12/15/2005 11/18/2005 12/9/2005 11/24/2005 12/21/2005

80.0 61.0 55.0 45.0 41.0 39.0 37.0 34.0

NH4 8.83 6.72 6.05 4.94 4.50 4.27 4.05 3.72

NO3 27.96 21.27 19.16 15.65 14.24 13.54 12.83 11.78

SO4 1.89 1.44 1.30 1.06 0.96 0.92 0.87 0.80

OC 30.77 23.41 21.09 17.22 15.67 14.90 14.13 12.97

EC 2.78 2.12 1.91 1.56 1.42 1.35 1.28 1.17

Salt 0.62 0.47 0.42 0.35 0.32 0.30 0.28 0.26

Geologic 1.31 1.00 0.90 0.74 0.67 0.64 0.60 0.55

PB Water 5.34 4.07 3.66 2.99 2.72 2.59 2.45 2.25

Total 79.5 60.5 54.5 44.5 40.5 38.5 36.5 33.5

2017 Q4

NH4 5.05 3.84 3.46 2.83 2.57 2.45 2.32 2.13

NO3 15.34 11.67 10.51 8.58 7.81 7.43 7.04 6.46

SO4 1.59 1.21 1.09 0.89 0.81 0.77 0.73 0.67

OC 8.16 6.21 5.59 4.57 4.16 3.95 3.74 3.44

EC 0.61 0.46 0.42 0.34 0.31 0.29 0.28 0.26

Salt 0.42 0.32 0.29 0.24 0.22 0.21 0.19 0.18

Geologic 0.98 0.75 0.67 0.55 0.50 0.48 0.45 0.41

PB Water 2.96 2.25 2.03 1.66 1.51 1.44 1.36 1.25

Blank 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5

Total 35.6 27.2 24.6 20.2 18.4 17.5 16.6 15.3

2006 → 2018

Current Mass 2006 Q1

2/10/2006 2/25/2006 1/11/2006 1/5/2006 1/20/2006 2/22/2006 2/13/2006 1/17/2006

52.0 42.0 38.0 37.0 33.0 33.0 27.0 26.0

NH4 6.73 5.42 4.90 4.77 4.24 4.24 3.46 3.33

NO3 20.00 16.12 14.56 14.17 12.62 12.62 10.29 9.90

SO4 2.45 1.98 1.79 1.74 1.55 1.55 1.26 1.21

OC 16.08 12.96 11.71 11.39 10.15 10.15 8.27 7.96

EC 0.87 0.70 0.63 0.62 0.55 0.55 0.45 0.43

Salt 0.36 0.29 0.26 0.25 0.23 0.23 0.18 0.18

Geologic 1.12 0.90 0.82 0.79 0.71 0.71 0.58 0.55

PB Water 3.90 3.14 2.84 2.76 2.46 2.46 2.00 1.93

Total 51.5 41.5 37.5 36.5 32.5 32.5 26.5 25.5

2018 Q1

NH4 3.76 3.03 2.74 2.66 2.37 2.37 1.93 1.86

NO3 10.52 8.48 7.66 7.46 6.64 6.64 5.42 5.21

SO4 1.87 1.51 1.36 1.33 1.18 1.18 0.96 0.93

OC 3.97 3.20 2.89 2.82 2.51 2.51 2.04 1.97

EC 0.17 0.14 0.13 0.12 0.11 0.11 0.09 0.09

Salt 0.30 0.24 0.22 0.21 0.19 0.19 0.15 0.15

Geologic 0.73 0.59 0.53 0.51 0.46 0.46 0.37 0.36

PB Water 2.09 1.68 1.52 1.48 1.32 1.32 1.07 1.03

Blank 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5

Total 23.91 19.37 17.55 17.09 15.28 15.28 12.55 12.09

Future Mass

Current Mass

Future Mass
2006 Q4

12/7/2006 12/31/2006 12/4/2006 12/19/2006 12/25/2006 12/13/2006 12/1/2006 11/25/2006

71.0 54.0 45.0 44.0 39.0 32.0 26.0 25.0

NH4 7.83 5.94 4.94 4.83 4.27 3.50 2.83 2.72

NO3 24.79 18.81 15.65 15.30 13.54 11.08 8.97 8.62

SO4 1.68 1.27 1.06 1.04 0.92 0.75 0.61 0.58

OC 27.28 20.71 17.22 16.84 14.90 12.19 9.87 9.48

EC 2.47 1.87 1.56 1.52 1.35 1.10 0.89 0.86

Salt 0.55 0.42 0.35 0.34 0.30 0.25 0.20 0.19

Geologic 1.17 0.88 0.74 0.72 0.64 0.52 0.42 0.41

PB Water 4.74 3.60 2.99 2.92 2.59 2.12 1.71 1.65

Total 70.5 53.5 44.5 43.5 38.5 31.5 25.5 24.5

2018 Q4

NH4 4.48 3.40 2.83 2.76 2.45 2.00 1.62 1.56

NO3 13.60 10.32 8.58 8.39 7.43 6.08 4.92 4.73

SO4 1.41 1.07 0.89 0.87 0.77 0.63 0.51 0.49

OC 7.23 5.49 4.57 4.46 3.95 3.23 2.62 2.51

EC 0.54 0.41 0.34 0.33 0.29 0.24 0.19 0.19

Salt 0.38 0.29 0.24 0.23 0.21 0.17 0.14 0.13

Geologic 0.87 0.66 0.55 0.54 0.48 0.39 0.31 0.30

PB Water 2.63 1.99 1.66 1.62 1.44 1.17 0.95 0.91

Blank 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5

Total 31.6 24.1 20.2 19.7 17.5 14.4 11.8 11.3

2007 → 2019

2007 Q1

2/5/2007 1/24/2007 1/9/2007 2/8/2007 1/3/2007 1/15/2007 1/27/2007 1/30/2007

64.0 56.0 50.0 49.0 44.0 42.0 42.0 39.0

NH4 8.29 7.25 6.46 6.33 5.68 5.42 5.42 5.03

NO3 24.66 21.55 19.22 18.83 16.89 16.12 16.12 14.95

SO4 3.02 2.64 2.36 2.31 2.07 1.98 1.98 1.83

OC 19.82 17.33 15.45 15.14 13.58 12.96 12.96 12.02

EC 1.07 0.94 0.84 0.82 0.74 0.70 0.70 0.65

Salt 0.44 0.39 0.35 0.34 0.30 0.29 0.29 0.27

Geologic 1.38 1.21 1.08 1.05 0.95 0.90 0.90 0.84

PB Water 4.80 4.20 3.74 3.67 3.29 3.14 3.14 2.91

Total 63.5 55.5 49.5 48.5 43.5 41.5 41.5 38.5

2019 Q1

NH4 4.63 4.05 3.61 3.54 3.17 3.03 3.03 2.81

NO3 12.98 11.34 10.12 9.91 8.89 8.48 8.48 7.87

SO4 2.31 2.02 1.80 1.77 1.58 1.51 1.51 1.40

OC 4.90 4.28 3.82 3.74 3.36 3.20 3.20 2.97

EC 0.21 0.19 0.17 0.16 0.15 0.14 0.14 0.13

Salt 0.37 0.32 0.29 0.28 0.25 0.24 0.24 0.22

Geologic 0.90 0.78 0.70 0.68 0.61 0.59 0.59 0.54

PB Water 2.57 2.25 2.00 1.96 1.76 1.68 1.68 1.56

Blank 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5

Total 29.4 25.7 23.0 22.6 20.3 19.4 19.4 18.0

Current Mass

Future Mass

Current Mass

Future Mass
2007 Q4

11/29/2007 11/26/2007 12/14/2007 12/17/2007 12/29/2007 12/10/2007 12/23/2007 11/8/2007

59.7 57.4 53.9 39.8 30.0 29.8 26.2 25.7

NH4 6.57 6.32 5.93 4.36 3.27 3.25 2.85 2.80

NO3 20.82 20.01 18.78 13.82 10.37 10.30 9.04 8.86

SO4 1.41 1.35 1.27 0.94 0.70 0.70 0.61 0.60

OC 22.91 22.02 20.67 15.21 11.42 11.34 9.95 9.75

EC 2.07 1.99 1.87 1.38 1.03 1.03 0.90 0.88

Salt 0.46 0.44 0.42 0.31 0.23 0.23 0.20 0.20

Geologic 0.98 0.94 0.88 0.65 0.49 0.48 0.42 0.42

PB Water 3.98 3.82 3.59 2.64 1.98 1.97 1.73 1.69

Total 59.2 56.9 53.4 39.3 29.5 29.3 25.7 25.2

2019 Q4

NH4 3.76 3.61 3.39 2.50 1.87 1.86 1.63 1.60

NO3 11.42 10.98 10.30 7.58 5.69 5.65 4.96 4.86

SO4 1.19 1.14 1.07 0.79 0.59 0.59 0.51 0.50

OC 6.07 5.84 5.48 4.03 3.03 3.01 2.64 2.59

EC 0.45 0.43 0.41 0.30 0.23 0.22 0.20 0.19

Salt 0.32 0.30 0.29 0.21 0.16 0.16 0.14 0.13

Geologic 0.73 0.70 0.66 0.49 0.36 0.36 0.32 0.31

PB Water 2.21 2.12 1.99 1.46 1.10 1.09 0.96 0.94

Blank 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5

Total 26.64 25.63 24.08 17.86 13.53 13.44 11.85 11.63

Future Mass

Current Mass