Laserfiche WebLink
Table A-Summary of Degradation Rate Calculations <br /> Shell Stockton Terminal,3515 Navy Drive,Stockton,California <br /> Maximus Current <br /> Concentration Concentration Half-Life Date to Reach Years to reach <br /> Well Analyte (99/1.) (#910 (yew) WQO WQO <br /> TBA 45 8 Not graphed <br /> MW-33 TPHd 3,900 873 5.87 Mar-17 5 <br /> TPHg 8,500 3,500 10.69 Jul 2045 33 <br /> Benzene 670 86A 4.55 Jan 2014 2 <br /> MTBE Not enough recent data to graph <br /> TBA Not enough recent data to graph. <br /> MW-37 TPHd 2,800 2,780 NA Stable Trend Stable trend <br /> TPHg 6,700 2,200 2.52 Jul 2019 7 <br /> Benzene 1,400 93 1.51 Jan 2014 2 <br /> MTBE 1,400 270 NA Below WQO WQOmet <br /> TBA 3,000 658 NA Below WQO WQOmet <br /> MW-38 TPHd 448 448 NA Stable Trend Stable Trend <br /> TPHg 600 140 2.75 Mar 2012 WQOmet <br /> Benzene 0.58 <0.5 NA ONy one detection above WQO <br /> MTBE 39 4.74 NA Below WQO WQO at <br /> TBA 14 <10 NA Only one detection above WQO <br /> MW-39 TPHd 2,880 2,880 - NA Stable Trend Stable Trend <br /> TPHg 7,600 4,700 Stable trend Stable trend Stable trend <br /> Benzene 1,000 802 Stable bend Stable trend Stable trend <br /> MTBE 860 558 NA Below WQO WQO set <br /> TBA 79 34 NA Below WQO WQO met <br /> Notes: <br /> TPHd - Total Petroleum Hydrocarbons as Diesel <br /> TPH9 -Total Petroleum Hydrocarbons as Gasoline <br /> MTBE -Methyl Tertiary Butyl Ether <br /> TBA -Tertiary Butyl Alcohol <br /> µg/L = Mraograms per liter <br /> WQO - Water Quality Objective <br /> a- Maximum value above detection limit <br />