The following construction specifications were revised and announced by NRCS in Wisconsin Field Office Technical Guide FOTG Notice WI-98.  The revised specification will replace the previous specification.

• Corrugated Metal Pipe Conduits (WCS-6) – ASTM A885 has been withdrawn with no replacement. Reference has been removed from WCS-6.
• Timber Fabrication & Installation (WCS-14) – Updated criteria based on updates to the national material specifications.
• Plastic Pipe Conduits (WCS-15) – Updated ASTM title changes.  Updated criteria to allow bell and spigot pipe to be laid with the bell pointed downstream if existing infrastructure dictates this.
• Geosynthetic Clay Liner (WCS-203) – Updated criteria based on updates to the national material specifications.

Further details are available in the Wisconsin FOTG Notices and current specifications, which are available on the NRCS website at:  https://efotg.sc.egov.usda.gov/#/

The full FOTG Notice is also available here: FOTG Notice WI-98.