1. (a) One soil test pit or auger boring shall be taken, to a depth of at least 40 inches, for each soil mapping unit present on the NRCS county soils map, but no less than one every 5 acres.
2. (b) An analysis of the soil test pits or auger borings required by (a) above, shall be performed that includes a description of the soil profile characteristics, depth to seasonal high water table, depth to restrictive feature, and depth to bedrock.
3. (c) Soil samples from each field proposed to be used for the land application of domestic septage shall be collected and analyzed in accordance with (d) below within 6 months prior to submittal of the initial permit application.

4. (d) The soil samples collected pursuant to (c), above, shall be analyzed by the applicable method(s) found in EPA SW-846, available as noted in Appendix B, for the following constituents:

   1. (1) Total arsenic, measured as mg/kg;
   2. (2) Total cadmium, measured as mg/kg;
   3. (3) Total chromium, measured as mg/kg;
   4. (4) Total copper, measured as mg/kg;
   5. (5) Total lead, measured as mg/kg;
   6. (6) Total mercury, measured as mg/kg;
   7. (7) Total molybdenum, measured as mg/kg;
   8. (8) Total nickel, measured as mg/kg;
   9. (9) Total selenium, measured as mg/kg;
   10. (10) Total zinc, measured as mg/kg; and
   11. (11) Per- and polyfluoroalkyl substances (PFAS) (40 compound list under CWA 1633 and within section F of Table 1610-1), measured as ng/g.

Source. (See Revision Note #1 and Revision Note #2 at chapter heading for Env-Wq 1600) #13944, eff 4-27-24