Okla. Admin. Code § 252:616-11-8 - Heavy Metals
The DEQ shall not approve the land application of industrial sludge that contains heavy metals above the concentration ranges normal to sludges with a demonstrated effectiveness on Oklahoma soils, unless the permittee provides a study on the effects of the sludge on a variety of Oklahoma soils and crops found at the location of the proposed land application site. Said study shall:
(1) be conducted by a qualified research institute familiar with crops and soils in Oklahoma and approved by the DEQ;
(2) be included with the sludge management plan; and
(3) demonstrate the effect of the sludge during four (4) growing seasons.
Notes
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