About Us


Hild & Associates, Inc. provides natural chitosan based water treatment products designed to improve water quality in a wide range of industries and field applications.


Our Biostar-CH product line targets industries such as:

  • Storm water control and discharge compliance
  • Metals and groundwater arsenic reductions
  • Phosphorus and sediment reductions through settling and filtration
  • Agricultural waste water streams


Quick Fact

Chitosan is the second most abundant natural product on earth next to cellulose.

It is safe, non toxic, and is used in a wide variety of applications such as plant disease control, field bandages, and a broad range of environmental and water treatment applications.

Chitosan breaks down to carbon dioxide and water within a few weeks of application.