Division 2.1.2.1 Leaching limit values
United Kingdom
The following leaching limit values apply for waste acceptable at landfills for inert waste, calculated at liquid to solid ratios (L/S) of 2 l/kg and 10 l/kg for total release and directly expressed in mg/l for C0 (the first eluate of percolation test at L/S = 0,1 l/kg). F1The appropriate authority shall determine which of the test methods (see section 3) and corresponding limit values in the table should be used.
| Component | L/S = 2 l/kg | L/S = 10 l/kg | C0 (percolation test) |
|---|---|---|---|
| mg/kg dry substance | mg/kg dry substance | mg/l | |
* If the waste does not meet these values for sulphate, it may still be considered as complying with the acceptance criteria if the leaching does not exceed either of the following values: 1 500 mg/l as C0 at L/S = 0,1 l/kg and 6 000 mg/kg at L/S = 10 l/kg. It will be necessary to use a percolation test to determine the limit value at L/S = 0,1 l/kg under initial equilibrium conditions, whereas the value at L/S = 10 l/kg may be determined either by a batch leaching test or by a percolation test under conditions approaching local equilibrium. ** If the waste does not meet these values for DOC at its own pH value, it may alternatively be tested at L/S = 10 l/kg and a pH between 7,5 and 8,0. The waste may be considered as complying with the acceptance criteria for DOC, if the result of this determination does not exceed 500 mg/kg. (A draft method based on prEN 14429 is available). *** The values for total dissolved solids (TDS) can be used alternatively to the values for sulphate and chloride. | |||
| As | 0,1 | 0,5 | 0,06 |
| Ba | 7 | 20 | 4 |
| Cd | 0,03 | 0,04 | 0,02 |
| Cr total | 0,2 | 0,5 | 0,1 |
| Cu | 0,9 | 2 | 0,6 |
| Hg | 0,003 | 0,01 | 0,002 |
| Mo | 0,3 | 0,5 | 0,2 |
| Ni | 0,2 | 0,4 | 0,12 |
| Pb | 0,2 | 0,5 | 0,15 |
| Sb | 0,02 | 0,06 | 0,1 |
| Se | 0,06 | 0,1 | 0,04 |
| Zn | 2 | 4 | 1,2 |
| Chloride | 550 | 800 | 460 |
| Fluoride | 4 | 10 | 2,5 |
| Sulphate | 560 f1 | 1 000 | 1 500 |
| Phenol index | 0,5 | 1 | 0,3 |
| DOC f2 | 240 | 500 | 160 |
| TDS f3 | 2 500 | 4 000 | — |
Annotations
Textual amendments
- F1
Words in Annex section 2.1.2.1 substituted (31.12.2020) by The Waste (Miscellaneous Amendments) (EU Exit) Regulations 2019 (S.I. 2019/620), regs. 1(2)(b), 15(7)(d)(ii); 2020 c. 1, Sch. 5 para. 1(1)
Footnotes
- f1
*
If the waste does not meet these values for sulphate, it may still be considered as complying with the acceptance criteria if the leaching does not exceed either of the following values: 1 500 mg/l as C0 at L/S = 0,1 l/kg and 6 000 mg/kg at L/S = 10 l/kg. It will be necessary to use a percolation test to determine the limit value at L/S = 0,1 l/kg under initial equilibrium conditions, whereas the value at L/S = 10 l/kg may be determined either by a batch leaching test or by a percolation test under conditions approaching local equilibrium.
- f2
**
If the waste does not meet these values for DOC at its own pH value, it may alternatively be tested at L/S = 10 l/kg and a pH between 7,5 and 8,0. The waste may be considered as complying with the acceptance criteria for DOC, if the result of this determination does not exceed 500 mg/kg. (A draft method based on prEN 14429 is available).
- f3
***
The values for total dissolved solids (TDS) can be used alternatively to the values for sulphate and chloride.
Notes on Division 2
Textual amendments
- F1
Words in Annex section 2 substituted (31.12.2020) by The Waste (Miscellaneous Amendments) (EU Exit) Regulations 2019 (S.I. 2019/620), regs. 1(2)(b), 15(7)(d)(i)(aa); 2020 c. 1, Sch. 5 para. 1(1)
- F2
Words in Annex section 2 substituted (31.12.2020) by The Waste (Miscellaneous Amendments) (EU Exit) Regulations 2019 (S.I. 2019/620), regs. 1(2)(b), 15(7)(d)(i)(bb); 2020 c. 1, Sch. 5 para. 1(1)