24-Hour 2019 Design Value Estimation

4-km CMAQ simulation for the SJV domain

2005 2006 20072007 DV2017201820192019 DV 63.0 51.3 60.9 58.4 30.9 25.2 29.928.6 3 3 3 3 3 3

RRF Q1 Q4 NH4 0.55 0.55 NO3 0.53 0.53 SO4 0.89 0.88 OC 0.36 0.32 EC 0.22 0.21 Salt 0.73 0.80 Geologic 0.71 0.82
Split Q1 Q4 NH4 0.14 0.13 NO3 0.45 0.43 SO4 0.04 0.03 OC 0.22 0.26 EC 0.04 0.05 Salt 0.00 0.01 Geologic 0.02 0.02 PB Water 0.09 0.08 Total 1.00 1.00

2005→ 2017 2005Q1 2/6/20051/16/20051/25/20052/3/20051/13/20052/15/20052/12/20051/22/2005 41.3 37.8 32.1 27.5 27.1 26.5 26.2 25.7 NH4 5.65 5.16 4.37 3.74 3.68 3.60 3.56 3.49 NO3 18.40 16.82 14.25 12.18 11.9911.7211.5911.36 SO4 1.63 1.49 1.26 1.08 1.06 1.04 1.03 1.01 OC 9.02 8.25 6.99 5.97 5.88 5.75 5.68 5.57 EC 1.63 1.49 1.26 1.08 1.06 1.04 1.03 1.01 Salt 0.19 0.17 0.15 0.12 0.12 0.12 0.12 0.12 Geologic 0.78 0.72 0.61 0.52 0.51 0.50 0.49 0.48 PB Water 3.51 3.20 2.72 2.32 2.29 2.23 2.21 2.17 Total 40.8 37.3 31.6 27.0 26.6 26.0 25.7 25.2

2017Q1 NH4 3.37 3.09 2.61 2.23 2.20 2.15 2.13 2.08 NO3 9.74 8.91 7.55 6.45 6.35 6.21 6.14 6.02 SO4 1.46 1.33 1.13 0.96 0.95 0.93 0.92 0.90 OC 3.20 2.93 2.48 2.12 2.09 2.04 2.02 1.98 EC 0.36 0.33 0.28 0.24 0.23 0.23 0.23 0.22 Salt 0.14 0.12 0.11 0.09 0.09 0.09 0.09 0.08 Geologic 0.56 0.51 0.43 0.37 0.36 0.35 0.35 0.34 PB Water 1.91 1.75 1.48 1.26 1.25 1.22 1.20 1.18 Blank 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Total 21.2 19.5 16.6 14.2 14.0 13.7 13.6 13.3 Fresno - Clovis

98th Percentile Rank

Current Mass

Future Mass2005Q4 12/12/200511/24/200512/9/200512/6/200511/15/200512/15/200511/21/200511/18/2005 77.0 67.1 63.0 56.9 49.8 47.2 37.6 37.4 NH4 9.87 8.59 8.07 7.28 6.36 6.03 4.79 4.76 NO3 32.53 28.32 26.58 23.99 20.9719.8615.7815.69 SO4 2.28 1.98 1.86 1.68 1.47 1.39 1.10 1.10 OC 20.15 17.55 16.47 14.86 12.9912.30 9.77 9.72 EC 3.48 3.03 2.84 2.56 2.24 2.12 1.69 1.68 Salt 0.39 0.34 0.32 0.29 0.25 0.24 0.19 0.19 Geologic 1.62 1.41 1.33 1.20 1.05 0.99 0.79 0.78 PB Water 6.18 5.38 5.05 4.55 3.98 3.77 3.00 2.98 Total 76.5 66.6 62.5 56.4 49.3 46.7 37.1 36.9

2017Q4 NH4 5.75 5.00 4.69 4.24 3.70 3.51 2.79 2.77 NO3 17.20 14.97 14.05 12.68 11.0810.50 8.34 8.30 SO4 2.01 1.75 1.64 1.48 1.29 1.23 0.97 0.97 OC 6.52 5.68 5.33 4.81 4.20 3.98 3.16 3.15 EC 0.73 0.64 0.60 0.54 0.47 0.45 0.36 0.35 Salt 0.31 0.27 0.25 0.23 0.20 0.19 0.15 0.15 Geologic 1.32 1.15 1.08 0.98 0.85 0.81 0.64 0.64 PB Water 3.34 2.90 2.73 2.46 2.15 2.04 1.62 1.61 Blank 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Total 37.7 32.9 30.9 27.9 24.5 23.2 18.5 18.4

2006→ 2018 2006Q1 2/13/20062/10/20061/23/20062/1/20061/11/20061/17/20061/20/20062/22/2006 65.8 41.8 37.2 33.3 28.7 27.9 23.4 23.0 NH4 9.04 5.72 5.08 4.54 3.90 3.79 3.17 3.11 NO3 29.45 18.62 16.55 14.79 12.7212.3610.3310.15 SO4 2.61 1.65 1.46 1.31 1.13 1.09 0.91 0.90 OC 14.44 9.13 8.11 7.25 6.23 6.06 5.064.97 EC 2.61 1.65 1.47 1.31 1.13 1.10 0.92 0.90 Salt 0.30 0.19 0.17 0.15 0.13 0.13 0.11 0.10 Geologic 1.25 0.79 0.70 0.63 0.54 0.53 0.44 0.43 PB Water 5.61 3.55 3.15 2.82 2.42 2.35 1.97 1.93 Total 65.3 41.3 36.7 32.8 28.2 27.4 22.9 22.5

2018Q1 NH4 5.40 3.42 3.04 2.71 2.33 2.27 1.89 1.86 NO3 15.60 9.86 8.77 7.83 6.74 6.54 5.47 5.37 SO4 2.33 1.47 1.31 1.17 1.01 0.98 0.82 0.80 OC 5.13 3.24 2.88 2.58 2.21 2.15 1.80 1.77 EC 0.58 0.36 0.32 0.29 0.25 0.24 0.20 0.20 Salt 0.22 0.14 0.12 0.11 0.09 0.09 0.08 0.07 Geologic 0.89 0.56 0.50 0.45 0.38 0.37 0.31 0.31 PB Water 3.06 1.93 1.72 1.54 1.32 1.28 1.07 1.05 Blank 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Total 33.69 21.49 19.16 17.17 14.8414.4312.1411.94 Current Mass

Future Mass Current Mass

Future Mass2006Q4 12/7/200612/31/200612/22/200612/4/200611/22/200612/1/200610/2/200612/19/2006 60.5 51.3 46.8 40.5 39.6 38.0 34.9 34.6 NH4 7.74 6.56 5.97 5.16 5.05 4.844.444.40 NO3 25.52 21.60 19.69 17.01 16.6315.9514.6314.50 SO4 1.78 1.51 1.38 1.19 1.16 1.12 1.02 1.01 OC 15.81 13.38 12.20 10.54 10.30 9.88 9.06 8.98 EC 2.73 2.31 2.10 1.82 1.78 1.70 1.56 1.55 Salt 0.31 0.26 0.24 0.20 0.20 0.19 0.18 0.17 Geologic 1.27 1.08 0.98 0.85 0.83 0.80 0.73 0.72 PB Water 4.84 4.10 3.74 3.23 3.16 3.03 2.78 2.75 Total 60.0 50.8 46.3 40.0 39.1 37.5 34.4 34.1

2018Q4 NH4 4.51 3.82 3.48 3.00 2.94 2.82 2.58 2.56 NO3 13.49 11.42 10.41 8.99 8.79 8.43 7.73 7.67 SO4 1.58 1.33 1.22 1.05 1.03 0.98 0.90 0.90 OC 5.12 4.33 3.95 3.41 3.33 3.20 2.93 2.91 EC 0.58 0.49 0.44 0.38 0.38 0.36 0.33 0.33 Salt 0.24 0.21 0.19 0.16 0.16 0.15 0.14 0.14 Geologic 1.04 0.88 0.80 0.69 0.68 0.65 0.60 0.59 PB Water 2.62 2.22 2.02 1.74 1.71 1.64 1.50 1.49 Blank 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Total 29.66 25.19 23.00 19.94 19.5018.7317.2217.07

2007→ 2019 2007Q1 1/21/20071/9/20071/27/20071/18/20071/16/20071/3/20071/30/20071/24/2007 61.2 47.9 45.9 43.5 42.7 42.2 42.2 40.4 NH4 8.40 6.56 6.28 5.95 5.84 5.77 5.77 5.52 NO3 27.37 21.37 20.47 19.39 19.0318.8018.8017.99 SO4 2.42 1.89 1.81 1.72 1.68 1.66 1.66 1.59 OC 13.42 10.48 10.04 9.51 9.33 9.22 9.22 8.82 EC 2.43 1.89 1.81 1.72 1.69 1.67 1.67 1.60 Salt 0.28 0.22 0.21 0.20 0.19 0.19 0.19 0.18 Geologic 1.16 0.91 0.87 0.82 0.81 0.80 0.80 0.77 PB Water 5.22 4.07 3.90 3.69 3.63 3.58 3.58 3.43 Total 60.7 47.4 45.4 43.0 42.2 41.7 41.7 39.9

2019Q1 NH4 5.02 3.92 3.76 3.56 3.49 3.45 3.45 3.30 NO3 14.50 11.32 10.84 10.27 10.08 9.96 9.96 9.53 SO4 2.16 1.69 1.62 1.53 1.51 1.49 1.49 1.42 OC 4.77 3.72 3.57 3.38 3.31 3.27 3.27 3.13 EC 0.54 0.42 0.40 0.38 0.37 0.37 0.37 0.35 Salt 0.20 0.16 0.15 0.14 0.14 0.14 0.14 0.13 Geologic 0.83 0.65 0.62 0.59 0.57 0.57 0.57 0.54 PB Water 2.84 2.22 2.13 2.01 1.98 1.95 1.95 1.87 Blank 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Total 31.36 24.60 23.58 22.36 21.9521.7021.7020.78 Current Mass

Future Mass

Current Mass

Future Mass2007Q4 11/29/200712/14/200712/11/200712/23/200711/8/200711/23/200711/14/200711/17/2007 64.7 60.9 58.2 52.5 50.0 35.1 32.1 30.7 NH4 8.28 7.79 7.45 6.71 6.39 4.464.08 3.90 NO3 27.30 25.69 24.54 22.11 21.0514.7113.4412.84 SO4 1.91 1.80 1.72 1.55 1.47 1.03 0.94 0.90 OC 16.91 15.91 15.20 13.70 13.04 9.12 8.32 7.96 EC 2.92 2.74 2.62 2.36 2.25 1.57 1.44 1.37 Salt 0.33 0.31 0.29 0.26 0.25 0.18 0.16 0.15 Geologic 1.36 1.28 1.22 1.10 1.05 0.73 0.67 0.64 PB Water 5.18 4.88 4.66 4.20 4.00 2.79 2.55 2.44 Total 64.2 60.4 57.7 52.0 49.5 34.6 31.6 30.2

2019Q4 NH4 4.82 4.54 4.33 3.91 3.72 2.60 2.37 2.27 NO3 14.43 13.58 12.97 11.69 11.13 7.78 7.10 6.79 SO4 1.69 1.59 1.52 1.37 1.30 0.91 0.83 0.79 OC 5.47 5.15 4.92 4.43 4.22 2.95 2.69 2.58 EC 0.62 0.58 0.55 0.50 0.48 0.33 0.30 0.29 Salt 0.26 0.25 0.24 0.21 0.20 0.14 0.13 0.12 Geologic 1.11 1.05 1.00 0.90 0.86 0.60 0.55 0.52 PB Water 2.80 2.63 2.52 2.27 2.16 1.51 1.38 1.32 Blank 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Total 31.70 29.86 28.54 25.77 24.5617.3215.8615.18 Current Mass

Future Mass