AwardsNapier’s Biological Trickling Filter Wastewater Plan Highly CommendedRuth LePlaJuly 31, 2015June 26, 2022 by Ruth LePlaJuly 31, 2015June 26, 20220480 At the 2015 LGNZ EXCELLENCE Awards. EQC EXCELLENCE Award for Infrastructure Project of the Year. Highly Commended: Napier City Council – Biological Trickling Filter Wastewater...