Site characteristics
| Site | Operational years | Total site area | Types of industrial and/or “hazardous” waste |
|---|---|---|---|
| 1 | 1962–72 | 1.1 ha | Tannery wastes with primarily ammonium and chromium compounds, tarry residues, oils, halogenated solvents |
| 2 | 1950–74 | 2.2 ha | Chlorinated solvents, tar, phenols, cyanide, organic solvents |
| 3 | Pre1961–present | 31 ha | Special and industrial wastes including oils, acids, alkalis, effluent/contaminated water and sludges, paint, leather phosphate, pesticide, electroplating wastes |
| 4 | 1956–85 | 1.42 ha | Unspecified liquid and solid wastes |
| 5 | 1979–88 | 10 ha | Various industrial toxic wastes including heavy metals, solvents, adhesives, varnishes, painting residues |
| 6 | 1964–86 | 4.6 ha | Unspecified industrial wastes |
| 7a | 1955–60 | 10 ha | Industrial wastes: radium, residues from copper production |
| 7b | Pre1970–? | 2.1 ha | Copper |
| 7c | 1953–present | 14.6 ha | Industrial wastes, chemical wastes from industrial water treatment |
| 8 | 1966–present | 100 ha | Industrial wastes: paint, rubber, ink, leather wastes, metal compounds, sludges |
| 9 | 1978–84 | 2 ha | Unspecified hazardous industrial wastes |
| 10 | 1974–83 | 7.6 ha | Incinerator waste, fly ash, and contaminated soil/sludges |
| 11 | Pre1950–85 | 1 ha | Heavy metals, wastes from production of sulphuric acid |
| 12 | 1984–94 | 2.7 ha | Industrial, special and restricted waste |
| 13a | 1972–present | 6.5 ha | Industrial waste: licensed to take inorganic and organic acids, alkalis, toxic metal compounds, miscellaneous chemical waste, treatment sludge, printing waste, tars, dyes, paints |
| 13b | 1973–89 | 12.5 ha | Licensed to take long list of special wastes including toxic metal compounds, cadmium, lead, mercury, adhesives, paint, tar, glue, printing waste, miscellaneous chemical waste |
| 13c | 1981–94 | 7.1 ha | Unspecified industrial and special wastes |
| 13d | 1983–93 | 10.1 ha | Industrial wastes including asbestos, boiler and flue cleaning, polymerisation products, adhesives, glue, and rubber wastes |
| 15a | 1955–present | 29 ha | Various types of industrial waste: heavy metals, acid and alkali wastes, paint washings and solvents, industrial treatment sludges, tannery sludges, contaminated soils |
| 15b | 1935–68 | 2.5 ha | Waste from chemical works and chromium processing industry: chromium III and VI |