24-Hour 2019 Design Value Estimation

4-km CMAQ simulation for the SJV domain

2005 2006 20072007 DV 2017 2018 20192019 DV 66.4 64.7 72.2 67.8 34.6 26.4 37.632.9 3 2 3 3 3 3

RRF Q1 Q4 NH4 0.57 0.56 NO3 0.54 0.53 SO4 0.90 0.97 OC 0.32 0.34 EC 0.20 0.23 Salt 0.70 0.74 Geologic 0.67 0.88
Split Q1 Q4 NH4 0.13 0.15 NO3 0.40 0.45 SO4 0.04 0.04 OC 0.28 0.21 EC 0.04 0.03 Salt 0.01 0.00 Geologic 0.03 0.02 PB Water 0.08 0.09 Total 1.00 1.00

2005→ 2017 2005Q1 3/11/20052/6/20052/12/20052/9/20051/13/20051/25/20051/16/20052/3/2005 51.6 41.8 40.2 33.4 29.5 27.3 26.6 26.0 NH4 6.61 5.34 5.13 4.25 3.75 3.46 3.37 3.30 NO3 20.4016.4815.85 13.1311.58 10.7010.42 10.18 SO4 1.83 1.48 1.42 1.18 1.04 0.96 0.93 0.91 OC 14.5611.77 11.31 9.37 8.26 7.64 7.44 7.26 EC 1.84 1.49 1.43 1.19 1.05 0.97 0.94 0.92 Salt 0.32 0.26 0.25 0.21 0.18 0.17 0.16 0.16 Geologic 1.62 1.31 1.26 1.04 0.92 0.85 0.83 0.81 PB Water 3.92 3.17 3.05 2.53 2.23 2.06 2.00 1.96 Total 51.1 41.3 39.7 32.9 29.0 26.8 26.1 25.5

2017Q1 NH4 3.84 3.11 2.99 2.47 2.18 2.02 1.96 1.92 NO3 11.11 8.98 8.63 7.15 6.31 5.83 5.68 5.55 SO4 1.64 1.33 1.28 1.06 0.93 0.86 0.84 0.82 OC 4.68 3.78 3.64 3.01 2.66 2.45 2.39 2.33 EC 0.38 0.31 0.29 0.24 0.21 0.20 0.19 0.19 Salt 0.22 0.18 0.17 0.14 0.13 0.12 0.11 0.11 Geologic 1.08 0.87 0.84 0.69 0.61 0.57 0.55 0.54 PB Water 2.18 1.76 1.69 1.40 1.24 1.14 1.11 1.09 Blank 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Total 25.6 20.8 20.0 16.7 14.8 13.7 13.3 13.0 98th Percentile Rank Bakersfield - East Planz Street

Current Mass

Future Mass2005Q4 12/15/200511/21/200512/17/200512/16/200512/6/200511/18/200511/15/200511/12/2005 77.5 71.7 66.4 63.0 47.6 42.9 41.3 40.2 NH4 11.41 10.55 9.76 9.26 6.98 6.28 6.04 5.88 NO3 35.0032.3729.9628.4121.41 19.27 18.55 18.05 SO4 3.32 3.07 2.84 2.70 2.03 1.83 1.76 1.71 OC 16.22 14.99 13.8813.16 9.92 8.93 8.59 8.36 EC 2.45 2.27 2.10 1.99 1.50 1.35 1.30 1.26 Salt 0.28 0.26 0.24 0.23 0.17 0.16 0.15 0.15 Geologic 1.57 1.45 1.34 1.27 0.96 0.86 0.83 0.81 PB Water 6.75 6.24 5.78 5.48 4.13 3.72 3.58 3.48 Total 77.0 71.2 65.9 62.5 47.1 42.4 40.8 39.7

2017Q4 NH4 6.62 6.12 5.67 5.37 4.05 3.65 3.51 3.41 NO3 18.65 17.2415.9615.1411.41 10.27 9.88 9.62 SO4 3.21 2.97 2.75 2.61 1.97 1.77 1.70 1.66 OC 5.50 5.09 4.71 4.46 3.36 3.03 2.91 2.84 EC 0.56 0.51 0.48 0.45 0.34 0.31 0.29 0.29 Salt 0.21 0.19 0.18 0.17 0.13 0.12 0.11 0.11 Geologic 1.38 1.28 1.18 1.12 0.85 0.76 0.73 0.71 PB Water 3.69 3.41 3.16 2.99 2.26 2.03 1.95 1.90 Blank 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Total 40.3 37.3 34.6 32.8 24.9 22.4 21.6 21.0

2006→ 2018 2006Q1 2/7/20062/24/20061/11/20062/4/20062/10/20061/23/20061/7/20061/17/2006 43.8 37.5 36.3 36.2 33.0 32.5 30.7 26.4 NH4 5.60 4.78 4.63 4.62 4.20 4.14 3.90 3.35 NO3 17.2814.77 14.29 14.2512.97 12.77 12.05 10.34 SO4 1.55 1.32 1.28 1.28 1.16 1.14 1.08 0.93 OC 12.3410.5410.2010.17 9.26 9.12 8.60 7.38 EC 1.56 1.34 1.29 1.29 1.17 1.15 1.09 0.93 Salt 0.27 0.23 0.23 0.23 0.20 0.20 0.19 0.16 Geologic 1.37 1.17 1.14 1.13 1.03 1.01 0.96 0.82 PB Water 3.33 2.84 2.75 2.74 2.50 2.46 2.32 1.99 Total 43.3 37.0 35.8 35.7 32.5 32.0 30.2 25.9

2018Q1 NH4 3.26 2.78 2.69 2.68 2.44 2.41 2.27 1.95 NO3 9.42 8.05 7.78 7.76 7.07 6.96 6.57 5.63 SO4 1.39 1.19 1.15 1.15 1.05 1.03 0.97 0.83 OC 3.96 3.39 3.28 3.27 2.98 2.93 2.77 2.37 EC 0.32 0.27 0.26 0.26 0.24 0.24 0.22 0.19 Salt 0.19 0.16 0.16 0.16 0.14 0.14 0.13 0.11 Geologic 0.91 0.78 0.76 0.75 0.69 0.68 0.64 0.55 PB Water 1.85 1.58 1.53 1.52 1.39 1.36 1.29 1.10 Blank 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Total 21.8 18.7 18.1 18.1 16.5 16.2 15.4 13.2 Current Mass

Future Mass

Current Mass

Future Mass2006Q4 12/7/200611/19/200611/9/200611/22/200611/16/200612/1/200612/29/200611/15/2006 78.6 64.7 50.6 50.2 41.0 33.9 33.0 29.0 NH4 11.57 9.51 7.42 7.36 6.00 4.95 4.81 4.22 NO3 35.5029.1822.7722.5918.41 15.1814.77 12.96 SO4 3.37 2.77 2.16 2.14 1.75 1.44 1.40 1.23 OC 16.45 13.52 10.55 10.47 8.53 7.03 6.84 6.00 EC 2.49 2.04 1.59 1.58 1.29 1.06 1.03 0.91 Salt 0.29 0.24 0.18 0.18 0.15 0.12 0.12 0.10 Geologic 1.59 1.31 1.02 1.01 0.83 0.68 0.66 0.58 PB Water 6.85 5.63 4.39 4.36 3.55 2.93 2.85 2.50 Total 78.1 64.2 50.1 49.7 40.5 33.4 32.5 28.5

2018Q4 NH4 6.71 5.52 4.31 4.27 3.48 2.87 2.79 2.45 NO3 18.92 15.55 12.13 12.04 9.81 8.09 7.87 6.90 SO4 3.26 2.68 2.09 2.07 1.69 1.39 1.36 1.19 OC 5.58 4.59 3.58 3.55 2.89 2.39 2.32 2.04 EC 0.56 0.46 0.36 0.36 0.29 0.24 0.23 0.21 Salt 0.21 0.17 0.14 0.13 0.11 0.09 0.09 0.08 Geologic 1.40 1.15 0.90 0.89 0.73 0.60 0.58 0.51 PB Water 3.74 3.07 2.40 2.38 1.94 1.60 1.56 1.37 Blank 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Total 40.9 33.7 26.4 26.2 21.4 17.8 17.3 15.2

2007→ 2019 2007Q1 2/5/20071/9/20072/2/20071/11/20072/18/20071/30/20071/27/20071/31/2007 90.7 67.0 55.2 39.0 37.6 36.3 33.3 32.5 NH4 11.66 8.60 7.07 4.98 4.80 4.63 4.24 4.14 NO3 36.0026.5421.83 15.3714.81 14.29 13.09 12.77 SO4 3.23 2.38 1.96 1.38 1.33 1.28 1.17 1.14 OC 25.7018.95 15.5810.9710.57 10.20 9.34 9.12 EC 3.26 2.40 1.97 1.39 1.34 1.29 1.18 1.15 Salt 0.57 0.42 0.34 0.24 0.23 0.23 0.21 0.20 Geologic 2.86 2.11 1.73 1.22 1.18 1.14 1.04 1.01 PB Water 6.93 5.11 4.20 2.96 2.85 2.75 2.52 2.46 Total 90.2 66.5 54.7 38.5 37.1 35.8 32.8 32.0

2019Q1 NH4 6.78 5.00 4.11 2.90 2.79 2.69 2.47 2.41 NO3 19.61 14.4611.89 8.37 8.07 7.78 7.13 6.96 SO4 2.90 2.14 1.76 1.24 1.19 1.15 1.06 1.03 OC 8.26 6.09 5.01 3.53 3.40 3.28 3.00 2.93 EC 0.67 0.49 0.40 0.28 0.27 0.26 0.24 0.24 Salt 0.40 0.29 0.24 0.17 0.16 0.16 0.14 0.14 Geologic 1.90 1.40 1.15 0.81 0.78 0.76 0.69 0.68 PB Water 3.84 2.83 2.33 1.64 1.58 1.53 1.40 1.36 Blank 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Total 44.9 33.2 27.4 19.4 18.8 18.1 16.6 16.2 Current Mass

Future Mass

Current Mass

Future Mass2007Q4 11/7/200711/2/200712/14/200711/8/200710/26/200711/26/200711/29/200711/14/2007 73.3 72.2 66.0 53.1 49.4 48.7 43.8 43.4 NH4 10.79 10.62 9.70 7.79 7.24 7.14 6.41 6.36 NO3 33.0932.5929.7723.9122.2321.91 19.6819.50 SO4 3.14 3.09 2.83 2.27 2.11 2.08 1.87 1.85 OC 15.33 15.1013.79 11.0810.3010.15 9.12 9.03 EC 2.32 2.28 2.08 1.67 1.56 1.53 1.38 1.37 Salt 0.27 0.26 0.24 0.19 0.18 0.18 0.16 0.16 Geologic 1.49 1.46 1.34 1.07 1.00 0.98 0.88 0.88 PB Water 6.38 6.28 5.74 4.61 4.29 4.22 3.80 3.76 Total 72.8 71.7 65.5 52.6 48.9 48.2 43.3 42.9

2019Q4 NH4 6.26 6.16 5.63 4.52 4.20 4.14 3.72 3.69 NO3 17.63 17.37 15.8612.7411.8411.67 10.49 10.39 SO4 3.04 2.99 2.73 2.20 2.04 2.01 1.81 1.79 OC 5.20 5.12 4.68 3.76 3.49 3.44 3.09 3.06 EC 0.53 0.52 0.47 0.38 0.35 0.35 0.31 0.31 Salt 0.20 0.19 0.18 0.14 0.13 0.13 0.12 0.12 Geologic 1.31 1.29 1.18 0.94 0.88 0.87 0.78 0.77 PB Water 3.49 3.43 3.14 2.52 2.34 2.31 2.07 2.05 Blank 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Total 38.1 37.6 34.4 27.7 25.8 25.4 22.9 22.7 Future Mass Current Mass