WISCONSIN FIELD OFFICE TECHNICAL GUIDE 450-11-TECHNICAL GUIDE

FOTG NOTICE WI-85

 

SUBJECTWISCONSIN FIELD OFFICE TECHNICAL GUIDE

Purpose.   Revisions to Wisconsin Conservation Practice Standards and Specifications.

Explanation of Changes.

 

Section IV: Conservation Practice Standards and Specifications:

Anionic Polyacrylamide (PAM) Application (CPS 450) – The revision adds a purpose to the standard to “improve soil surface infiltration rate and minimize soil crusting to allow for uniform plant growth on irrigated land.” There was also criteria for this purpose added to the standard which sets the PAM application rate to not exceed 4 pounds per acre, as well as criteria for mixing and injecting the PAM.

Constructed Wetland (CPS 656) – Revised language as needed to improve readability and clarify intent of criteria. Additional conditions related to bioreactors and saturated buffers were added. Added criteria under heading “Additional Criteria Applicable to Constructed Wetlands for Water Quality Improvement” to use design procedure recognized by the regulatory and academic conservation partners, and to select a design hydraulic retention time that will achieve the intended water quality results. Added consideration to address odor concerns near populated areas.

Denitrifying Bioreactor (CPS 605) – The unit is changed from “Ea.” To “No.” Under “General Criteria Applicable to all Purposes,” in the equation, a “plus” sign replaces the “minus” sign. Under