1. Appendix B.2 Phase 2 HGB Mid Course Review Base Case One-Hour Scatter Plots Prepared by the Technical Support Section Technical Analysis Division TCEQ April, 2004

2. Houston-Galveston One-Hour Scatter Plots Organized by Monitoring Site

3. Bayland Park Scatter Plots

6. Detail of Previous Plot

9. Beaumont Scatter Plots

12. Detail of Previous Plot

14. Clinton Drive Scatter Plots

17. Detail of Previous Plot

29. Clute Scatter Plots

31. Conroe Scatter Plots

35. Deer Park Scatter Plots

38. Detail of Previous Plot

42. Galveston Scatter Plots

46. HRM Site 3 Scatter Plots

49. Detail of Previous Plot

53. HRM Site 4 Scatter Plots

56. Detail of Previous Plot

58. HRM Site 7 Scatter Plots

61. Detail of Previous Plot

63. HRM Site 8 Scatter Plots

66. Detail of Previous Plot

69. HRM Site 10 Scatter Plots

72. Detail of Previous Plot

75. HRM Site 11 Scatter Plots

78. Detail of Previous Plot

80. Aldine Scatter Plots

83. Detail of Previous Plot

95. Crawford Scatter Plots

98. Detail of Previous Plot

101. Croquet Scatter Plots

103. Lang Scatter Plots

106. Detail of Previous Plot

110. Northwest Harris County Scatter Plots

114. Houston East Scatter Plots

117. Detail of Previous Plot

119. Houston Regional Office Scatter Plots

121. Swiss & Monroe Scatter Plots

123. North Wayside Scatter Plots

125. Hamshire Scatter Plots

128. Detail of Previous Plot

130. La Porte Supersite Scatter Plots

133. Detail of Previous Plot

148. Port Arthur West Scatter Plots

150. Sabine Pass Scatter Plots

154. Mauriceville Scatter Plots

158. Jefferson County Airport Scatter Plots

161. Detail of Previous Plot

163. Shell Westhollow Scatter Plots

165. La Marque Scatter Plots

167. Williams Tower Supersite Scatter Plots

170. Detail of Previous Plot

180. West Orange Scatter Plots