Batch One of SymSoil™ Robust Compost has almost no heavy metals. More details to be found at SymSoil.com
Below is a table which details each element, and contrasts this with in contrast California’s Maximum Allowable levels. The trace amounts average less than 5% of legal allowable limit, and are believed to have originated with the OMRI certified Jepson Prairie used in the manufacturing of SymSoil™ Batch One.
|
SymSoil™ Batch One |
Maximum Allowable |
|
|
|
Parts/Million (mg/kg) Concentration on a Dry Weight Basis |
|
| Arsenic (As) | 5.5 | 41 |
| Cadmium (Cd) | <1.0 | 39 |
| Chromium (Cr) | 27 | No Limit |
| Copper (Cu) | 55 | 1,500 |
| Lead (Pb) | 44 | 300 |
| Mercury (Hg) | <1.0 | 17 |
| Nickel (Ni) | 26 | 420 |
| Selenium (Se) | <1.0 | 100 |
| Zinc (Zn) | 200 | 2,800 |
This five page memo gives more details
Memo on heavy metals
Pages 2 & 3 are independent soil chemistry report from Soil Control Labs, which detail the three tests they performed for metals. Pages 4 & 5 include the statute from the State regarding these metals .