Section 507.21. Lysimeter fluid and leachate monitoring.

  The owner or operator of a solid waste disposal facility shall sample lysimeter fluid and leachate in accordance with this section.

(1)   Sampling parameters. Owners or operators of landfills shall sample lysimeter fluid and leachate beginning with the first sampling period following acceptance of waste in accordance with ch. NR 507 Appendix I , Tables 4 and 5 or as otherwise approved by the department in writing. If 10% or more of a municipal solid waste landfill's total design capacity consists of municipal solid waste combustor residue, paper mill sludge, fly or bottom ash, or foundry sand, the lysimeter and leachate monitoring shall include the additional parameters listed in ch. NR 507 Appendix I , Table 4 or 5 for those waste types. The owners or operators shall maintain records of all leachate pumped and at a minimum shall record the information annually. The owners or operators shall report the monthly leachate volumes and lysimeter fluid volumes to the department semi-annually in accordance with s. NR 507.26 (3) .

(2)   A DDITIONAL LEACHATE SAMPLING . Owners or operators of municipal solid waste facilities required to designate Subtitle D wells in accordance with s. NR 507.15 (2) (a) may monitor leachate annually for parameters listed in ch. NR 507 Appendix II . Within 14 days after obtaining the leachate sampling results, the owner or operator shall place the results in the operating record and, within 60 days after the end of the sampling period, submit the results to the department.

(3)   Leachate head monitoring. Owners or operators of solid waste disposal facilities shall sample all leachate head wells for leachate head levels on a quarterly basis, at a minimum, unless otherwise approved by the department, and report the data to the department semi-annually and in accordance with s. NR 507.26 (3) .

Cr. Register, June, 1996, No. 486 , eff. 7-1-96; CR 05-020 : cr. (3) Register January 2006 No. 601 , eff. 2-1-06; corrections in (1), (2) made under s. 13.92 (4) (b) 7. , Stats., Register April 2013 No. 688 .