Evaluasi Dampak Lingkungan dan Penerimaan Sosial Pembangunan Kolam Retensi Sempaja, Samarinda, Berbasis Pemantauan UKL-UPL

Abstract

Retention ponds are increasingly built to reduce urban flooding in Samarinda, but their construction generates dust, noise, vibration, and social disturbance in surrounding settlements. Evaluations of such projects in Indonesia are typically limited to checking whether parameters meet standards at a single point in time. This study evaluates the environmental performance and social acceptance of the Sempaja Retention Pond construction in North Samarinda by combining two periods of environmental monitoring data from the project's UKL-UPL implementation reports (2024 and 2025), field observation, and a questionnaire survey of 10 residents. Ten ambient air and noise parameters at the haul route and the adjacent settlement were compared with national standards using concentration-to-standard ratios (C/BM), and results were synthesised in a three-pillar sustainability matrix. Compliance improved from 8 of 10 to 9 of 10 parameters. Total suspended particulates on the haul route fell by 40.1% but still exceeded the standard (244.47 versus 230 µg/Nm³; C/BM = 1.06), while route noise dropped by 3.26 dB(A) to within the limit. In the settlement, all parameters complied, although TSP rose by 50.0% and noise by 3.88 dB(A), narrowing the margin to the noise limit to 2.9 dB(A). Social acceptance was complete, with 100% of respondents aware of and supporting the project and no reported conflicts, and local workers increased from 44.4% to 82.8% of the workforce. The project is broadly moving toward sustainable management, but haul-route dust control and settlement-side noise require targeted strengthening, supported by continuous monitoring and community health surveillance.