Welcome to Oliver-Higgins Wastewater. Oliver-Higgins Wasterwater contractors design and construct wastewater treatment plants, greywater treatment plants, microfiltration, recycling and nutrient reduction treatment plants.
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TRANSPORTABLE & RELOCATABLE TREATMENT PLANTS    .  .   WASTEWATER TREATMENT    .  .   PROJECT MANAGEMENT    .  .   GREYWATER TREATMENT    .  .   SUSTAINABLE DESIGN    .  .   WASTEWATER RECYCLING    .  .