| Agilent Techs. Inc. Little Falls Site | 1 | 1 | 1,422.00 |
| Alfred I Dupont Hospital For Children | 86 | 386 | 255,064.13 |
| Ametek Inc Chemical Products Division | 83 | 269 | 11,383.29 |
| Amtrak Wilmington Maintenance Facility | 51 | 174 | 14,749.68 |
| Astrazeneca Pharmaceuticals Lp-Fairfax | 55 | 650 | 62,632.67 |
| Christiana Care - Wilmington Hospital | 56 | 297 | 34,432.45 |
| Conectiv Delmarva Generation-Christiana | 37 | 74 | 76,706.23 |
| Conectiv Delmarva Generation-Edge Moor | 122 | 655 | 32,640,833.58 |
| Conectiv Delmarva Generation-Hay Road | 41 | 188 | 1,092,614.02 |
| Conectiv Delmarva Generation-Madison St | 37 | 37 | 2,810.70 |
| Conectiv Delmarva Generation-West_subst | 37 | 37 | 24,926.03 |
| De Solid Waste Authority Cherry Island | 37 | 41 | 46,431.14 |
| Delaware Terminal Company | 47 | 273 | 26,574.79 |
| Diamond Materials Llc | 9 | 30 | 102,616.98 |
| Dupont Chestnut Run | 86 | 208 | 455,958.12 |
| Dupont Edgemoor | 92 | 399 | 6,392,793.54 |
| Dupont Experimental Station | 95 | 439 | 1,765,629.89 |
| Dupont Wilmington Office Building | 79 | 395 | 158,899.71 |
| Edgemoor Materials Inc | 13 | 25 | 46,127.29 |
| General Motors Corporation | 100 | 829 | 1,268,645.16 |
| Hercules Incorporated Research Center | 82 | 444 | 252,250.65 |
| Industraplate Corp | 1 | 1 | 0.01 |
| Insteel Wire Prods. | 1 | 1 | 0.00 |
| International Petroleum Corp Of Delaware | 59 | 281 | 31,905.42 |
| Lafarge North America Inc | 49 | 834 | 255,182.39 |
| Noramco Inc | 53 | 205 | 21,489.76 |
| Pepsi Cola Bottling Company | 1 | 1 | 0.00 |
| Pure Green Industries Inc | 39 | 51 | 11,695.17 |
| St. Francis Hospital | 84 | 506 | 15,466.54 |
| Standard Technologies & Machine Co Inc | 1 | 1 | 1.36 |
| Veterans Administration Hospital | 57 | 167 | 16,005.94 |
| Wilmington Piece Dye Co | 50 | 57 | 54,792.57 |
| Wilmington Wastewater Treatment Plant | 54 | 71 | 13,827.78 |
